(DEMO)
Codes:
.backimage {width:99%; height:98%; position:absolute; background:transparent url("http://upload.wikimedia.org/wikipedia/commons/4/41/Brickwall_texture.jpg") repeat scroll 0% 0%; }
and
<div>
<div class="backimage"></div>
YOUR OTHER CONTENTTT
</div>
Not sure about the Java parsing, but that's ISO8601: http://en.wikipedia.org/wiki/ISO_8601
The only way I know is this:
Reassure that preferences | Basic Notes Client configuration | Drag and drop saves as eml file is checked
1) Drag your email to e.g. your desktop or to an explorer instance (will be saved as an eml file).
2) Attach this file to your opened email by either selecting it with the paperclip menu item or drag 'n drop the file into the opened email.
For me, the answer is Crystal Syntax, the BASIC-like language used by Crystal Reports. Trying to accomplish anything other than mere comparisons is difficult at best and impossible at worst. Granted, they do arrays fairly well:
{some_database_field} IN ["firstValue", "secondValue", "thirdValue"]
But the following doesn't work at all:
{some_database_field} NOT IN ["firstValue", "secondValue", "thirdValue"]
Even though the language does have a NOT operator.
As you've indicated, you can't output NULL in an excel formula. I think this has to do with the fact that the formula itself causes the cell to not be able to be NULL. "" is the next best thing, but sometimes it's useful to use 0.
--EDIT--
Based on your comment, you might want to check out this link. http://peltiertech.com/WordPress/mind-the-gap-charting-empty-cells/
It goes in depth on the graphing issues and what the various values represent, and how to manipulate their output on a chart.
I'm not familiar with VSTO I'm afraid. So I won't be much help there. But if you are really placing formulas in the cell, then there really is no way. ISBLANK() only tests to see if a cell is blank or not, it doesn't have a way to make it blank. It's possible to write code in VBA (and VSTO I imagine) that would run on a worksheet_change event and update the various values instead of using formulas. But that would be cumbersome and performance would take a hit.
Deleting the .git
folder is probably the easiest path since you don't want/need the history (as Stephan said).
So you can create a new repo from your latest commit: (How to clone seed/kick-start project without the whole history?)
git clone <git_url>
then delete .git
, and afterwards run
git init
Or if you want to reuse your current repo: Make the current commit the only (initial) commit in a Git repository?
Follow the above steps then:
git add .
git commit -m "Initial commit"
Push to your repo.
git remote add origin <github-uri>
git push -u --force origin master
We can align a view in center of the FrameLayout
by setting the layout_gravity
of the child view.
In XML:
android:layout_gravity="center"
In Java code:
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.CENTER;
Note: use FrameLayout.LayoutParams
not the others existing LayoutParams
Look at snprintf or, if GNU extensions are OK, asprintf (which will allocate memory for you).
The code snippet in the linked proposed duplicate reads user input.
ECHO A current build of Test Harness exists.
set /p delBuild=Delete preexisting build [y/n]?:
The user can type as many letters as they want, and it will go into the delBuild variable.
With Java 8 it is a bit easier:
OptionalDouble average = marks
.stream()
.mapToDouble(a -> a)
.average();
Thus your average value is average.getAsDouble()
return average.isPresent() ? average.getAsDouble() : 0;
Have a look on code below. Tested and found working on Mobile and Tablet devices.
<!-- 1. The <iframe> (video player) will replace this <div> tag. -->
<div id="player"></div>
<script>
// 2. This code loads the IFrame Player API code asynchronously.
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
// 3. This function creates an <iframe> (and YouTube player)
// after the API code downloads.
var player;
function onYouTubeIframeAPIReady() {
player = new YT.Player('player', {
height: '390',
width: '640',
videoId: 'M7lc1UVf-VE',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
// 4. The API will call this function when the video player is ready.
function onPlayerReady(event) {
event.target.playVideo();
}
// 5. The API calls this function when the player's state changes.
// The function indicates that when playing a video (state=1),
// the player should play for six seconds and then stop.
var done = false;
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.PLAYING && !done) {
setTimeout(stopVideo, 6000);
done = true;
}
}
function stopVideo() {
player.stopVideo();
}
</script>
java.lang
does not contain a class called StringUtils
. Several third-party libs do, such as Apache Commons Lang or the Spring framework. Make sure you have the relevant jar in your project classpath and import the correct class.
This looks like a pretty robust solution: https://github.com/flesler/hashmap
It will even work well for functions and objects that look identical. The only hack it uses is adding an obscure member to an object to identify it. If your program doesn't overwrite that obscure variable (it's something like hashid), you're golden.
A simple and proper way I've found to Handle Checked/Unchecked events using MVVM pattern is the Following, with Caliburn.Micro :
<CheckBox IsChecked="{Binding IsCheckedBooleanProperty}" Content="{DynamicResource DisplayContent}" cal:Message.Attach="[Event Checked] = [Action CheckBoxClicked()]; [Event Unchecked] = [Action CheckBoxClicked()]" />
And implement a Method CheckBoxClicked() in the ViewModel, to do stuff you want.
$('img.conversation_img[alt="example"]')
.each(function(){
alert($(this).attr('src'))
});
This will display src attributes of all images of class 'conversation_img' with alt='example'
For me, this issue happened because I have signed in with a different account than the account I have installed the app on the iPhone with.
Just delete the app from the iPhone and run it again from Xcode.
For some reason none of the above answers seemed to be addressing the case of the real first and only first child of the parent.
#element_id > .class_name:first-child
All the above answers will fail if you want to apply the style to only the first class child within this code.
<aside id="element_id">
Content
<div class="class_name">First content that need to be styled</div>
<div class="class_name">
Second content that don't need to be styled
<div>
<div>
<div class="class_name">deep content - no style</div>
<div class="class_name">deep content - no style</div>
<div>
<div class="class_name">deep content - no style</div>
</div>
</div>
</div>
</div>
</aside>
I would recommend DISLIN. It's cross platform, has support for many languages, and has very intuitive naming of routines.
Also, just noticed that nobody mentioned PLPLOT, also cross platform, multi lingual ...
$out.='<option value="'.$key.'">'.$value["name"];
me funciono con esta
"<a href='javascript:void(0)' onclick='cargar_datos_cliente(\"$row->DSC_EST\")' class='button micro asignar margin-none'>Editar</a>";
GIMP ( Graphic Image Manipulation Program) does a pretty good job... http://www.makeuseof.com/tag/create-image-map-gimp/
Only one column version
df[column_name].fillna(method='ffill', inplace=True)
df[column_name].fillna(method='backfill', inplace=True)
This is not supported by some browsers (IE if I recall), but it works in the rest:
document.getElementById("password-field").attributes["type"] = "password";
or
document.getElementById("password-field").attributes["type"] = "text";
Updating to use tibble()
You can pass a named vector of length greater than 1 to the by
argument of left_join()
:
library(dplyr)
d1 <- tibble(
x = letters[1:3],
y = LETTERS[1:3],
a = rnorm(3)
)
d2 <- tibble(
x2 = letters[3:1],
y2 = LETTERS[3:1],
b = rnorm(3)
)
left_join(d1, d2, by = c("x" = "x2", "y" = "y2"))
I recommend the jquery.post() method.
The easiest way is to add a type to the variable that is receiving the value, like this:
var value: string = (event.target as any).value;
Or you could cast the value
property as well as event.target
like this:
var value = ((event.target as any).value as string);
Edit:
Lastly, you can define what EventTarget.value
is in a separate .d.ts
file. However, the type will have to be compatible where it's used elsewhere, and you'll just end up using any
again anyway.
globals.d.ts
interface EventTarget {
value: any;
}
I did tests with buffer size, running this code
using (var stream = new BufferedStream(File.OpenRead(file), bufferSize))
{
SHA256Managed sha = new SHA256Managed();
byte[] checksum = sha.ComputeHash(stream);
return BitConverter.ToString(checksum).Replace("-", String.Empty).ToLower();
}
And I tested with a file of 29½ GB in size, the results were
I am running an i5 2500K CPU, 12 GB ram and a OCZ Vertex 4 256 GB SSD drive.
So I thought, what about a standard 2TB harddrive. And the results were like this
So I would recommend either no buffer or a buffer of max 1 mill.
It’s just HTML with Server Side Includes.
This can be done with CSS3:
<input type="text" />
input
{
-moz-border-radius: 15px;
border-radius: 15px;
border:solid 1px black;
padding:5px;
}
However, an alternative would be to put the input
inside a div
with a rounded background, and no border on the input
First create an instance of ObjectReader which is thread-safe.
ObjectMapper objectMapper = new ObjectMapper();
ObjectReader objectReader = objectMapper.reader().forType(new TypeReference<List<MyClass>>(){});
Then use it :
List<MyClass> result = objectReader.readValue(inputStream);
You could query an LDAP server from the command line with ldap-utils: ldapsearch, ldapadd, ldapmodify
If you want a one-liner, you can do:
df.rename(columns=df.iloc[0]).drop(df.index[0])
You could look at the Wikipedia article on Standard Deviation, in particular the section about Rapid calculation methods.
There's also an article I found that uses Python, you should be able to use the code in it without much change: Subliminal Messages - Running Standard Deviations.
My best guess would be that you are on a shared server and the session files are mixed along all users so you can't, nor you should, delete them. What you can do, if you are worried about scaling and/or your users session privacy, is to move sessions to the database.
Start writing that Cookie to the database and you've got a long way towards scaling you app across multiple servers when time is due.
Apart from that I would not worry much with the 145.000 files.
Context is an interface to global information about an application environment. It's an abstract class whose implementation is provided by the Android
system.
Context
allows access to application-specific resources and classes, as well as calls for application-level operations such as launching activities, broadcasting and receiving intents, etc.
Here is Example
public class MyActivity extends Activity {
public void Testing() {
Context actContext = this; /*returns the Activity Context since Activity extends Context.*/
Context appContext = getApplicationContext(); /*returns the context of the single, global Application object of the current process. */
Button BtnShowAct1 = (Button) findViewById(R.id.btnGoToAct1);
Context BtnContext = BtnShowAct1.getContext(); /*returns the context of the View. */
For more details you can visit http://developer.android.com/reference/android/content/Context.html
For DictReader:
f = open(filename, "rb")
d = csv.DictReader(f, delimiter=",")
f.seek(0)
d.__init__(f, delimiter=",")
For DictWriter:
f = open(filename, "rb+")
d = csv.DictWriter(f, fieldnames=fields, delimiter=",")
f.seek(0)
f.truncate(0)
d.__init__(f, fieldnames=fields, delimiter=",")
d.writeheader()
f.flush()
You can use LOG such as :
Log.e(String, String) (error)
Log.w(String, String) (warning)
Log.i(String, String) (information)
Log.d(String, String) (debug)
Log.v(String, String) (verbose)
example code:
private static final String TAG = "MyActivity";
...
Log.i(TAG, "MyClass.getView() — get item number " + position);
Not a jquery plugin, but the DateJS Library appears to do what you require. The Getting Started page has a number of examples.
you can implement in a xml file for this as follows:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true" android:drawable="@drawable/your_imagename_while_focused"/>
<item android:state_pressed="true" android:drawable="@drawable/your_imagename_while_pressed" />
<item android:drawable="@drawable/image_name_while_notpressed" /> //means normal
</selector>
now save this xml file in drawable folder and name it suppos abc.xml and set it as follows
Button tiny = (Button)findViewById(R.id.tiny);
tiny.setBackgroundResource(R.drawable.abc);
Hope it will help you. :)
Just insert $this->load->database();
in your model:
function order_summary_insert($data){
$this->load->database();
$this->db->insert('Customer_Orders',$data);
}
Here is my method:
import re
# Compile
p = re.compile(r'hi')
# Match and print
print bool(p.match("abcdefghijkl"))
System.Data.SqlClient
is the .NET Framework Data Provider for SQL Server. ie .NET library for SQL Server.
I don't know where providerName=SqlServer
comes from. Could you be getting this confused with the provider keyword in your connection string? (I know I was :) )
In the web.config you should have the System.Data.SqlClient
as the value of the providerName attribute. It is the .NET Framework Data Provider you are using.
<connectionStrings>
<add
name="LocalSqlServer"
connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"
providerName="System.Data.SqlClient"
/>
</connectionStrings>
See http://msdn.microsoft.com/en-US/library/htw9h4z3(v=VS.80).aspx
If you like, you could declare an infix
operator
to do it.
// Put this at file level anywhere in your project
infix operator ^^ { associativity left precedence 160 }
func ^^ (radix: Int, power: Int) -> Int {
return Int(pow(Double(radix), Double(power)))
}
// ...
// Then you can do this...
let i = 2 ^^ 3
// ... or
println("2³ = \(2 ^^ 3)") // Prints 2³ = 8
I used two carets so you can still use the XOR operator.
Update for Swift 3
In Swift 3 the "magic number" precedence
is replaced by precedencegroups
:
precedencegroup PowerPrecedence { higherThan: MultiplicationPrecedence }
infix operator ^^ : PowerPrecedence
func ^^ (radix: Int, power: Int) -> Int {
return Int(pow(Double(radix), Double(power)))
}
// ...
// Then you can do this...
let i2 = 2 ^^ 3
// ... or
print("2³ = \(2 ^^ 3)") // Prints 2³ = 8
I had below error:
Error: connect ECONNREFUSED 127.0.0.1:27017
In my case, this issue occurred since MongoDB is not installed at all.
The solution was to install MongoDB from below location:
https://www.mongodb.com/download-center/community
After installing the ECONNREFUSED
error did not appear again.
Hope that helps.
we developed a module on GitHub that has hooks for fetching data so you can use it like this for your purpose:
import { useFetching } from "react-concurrent";
const app = () => {
const { data, isLoading, error , refetch } = useFetching(() =>
fetch("http://example.com"),
);
};
You can fork that out, but any PRs are welcome. https://github.com/hosseinmd/react-concurrent#react-concurrent
While other answers on here are valid, they're not a full recipe for solving this.
In the spirit of completeness:
You need to have the findbugs annotations in your pom file - they're only compile time, so you can use the provided
scope:
<dependency>
<groupId>com.google.code.findbugs</groupId>
<artifactId>findbugs-annotations</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
This allows the use of @SuppressFBWarnings
there is another dependency which provides @SuppressWarnings
. However, the above is clearer.
Then you add the annotation above your method:
E.g.
@SuppressFBWarnings(value = "RCN_REDUNDANT_NULLCHECK_WOULD_HAVE_BEEN_A_NPE",
justification = "Scanning generated code of try-with-resources")
@Override
public String get() {
try (InputStream resourceStream = owningType.getClassLoader().getResourceAsStream(resourcePath);
BufferedReader reader = new BufferedReader(new InputStreamReader(resourceStream, UTF_8))) { ... }
This includes both the name of the bug and also a reason why you're disabling the scan for it.
Unsigned can hold a larger positive value and no negative value.
Yes.
Unsigned uses the leading bit as a part of the value, while the signed version uses the left-most-bit to identify if the number is positive or negative.
There are different ways of representing signed integers. The easiest to visualise is to use the leftmost bit as a flag (sign and magnitude), but more common is two's complement. Both are in use in most modern microprocessors — floating point uses sign and magnitude, while integer arithmetic uses two's complement.
Signed integers can hold both positive and negative numbers.
Yes.
While there is no technical difference, I have seen the two used to denote slightly different things.
For a template that should accept any type as T, including built-ins (such as an array )
template<typename T>
class Foo { ... }
For a template that will only work where T is a real class.
template<class T>
class Foo { ... }
But keep in mind that this is purely a style thing some people use. Not mandated by the standard or enforced by compilers
with
function and single
parameters:
$ms = Person::where('name', 'Foo Bar');
$persons = Person::order_by('list_order', 'ASC')->get();
return $view->with(compact('ms', 'persons'));
with
function and array
parameter:
$ms = Person::where('name', 'Foo Bar');
$persons = Person::order_by('list_order', 'ASC')->get();
$array = ['ms' => $ms, 'persons' => $persons];
return $view->with($array);
This gives me the same error as trying to split the list up and zip it. ValueError: dictionary update sequence element #0 has length 1916; 2 is required
THAT is your actual question.
The answer is that the elements of your list are not what you think they are. If you type myList[0]
you will find that the first element of your list is not a two-tuple, e.g. ('A', 1)
, but rather a 1916-length iterable.
Once you actually have a list in the form you stated in your original question (myList = [('A',1),('B',2),...]
), all you need to do is dict(myList)
.
Yes, you can use the File API for this.
Here's a complete example (see comments):
document.getElementById("btnLoad").addEventListener("click", function showFileSize() {
// (Can't use `typeof FileReader === "function"` because apparently it
// comes back as "object" on some browsers. So just see if it's there
// at all.)
if (!window.FileReader) { // This is VERY unlikely, browser support is near-universal
console.log("The file API isn't supported on this browser yet.");
return;
}
var input = document.getElementById('fileinput');
if (!input.files) { // This is VERY unlikely, browser support is near-universal
console.error("This browser doesn't seem to support the `files` property of file inputs.");
} else if (!input.files[0]) {
addPara("Please select a file before clicking 'Load'");
} else {
var file = input.files[0];
addPara("File " + file.name + " is " + file.size + " bytes in size");
}
});
function addPara(text) {
var p = document.createElement("p");
p.textContent = text;
document.body.appendChild(p);
}
_x000D_
body {
font-family: sans-serif;
}
_x000D_
<form action='#' onsubmit="return false;">
<input type='file' id='fileinput'>
<input type='button' id='btnLoad' value='Load'>
</form>
_x000D_
Slightly off-topic, but: Note that client-side validation is no substitute for server-side validation. Client-side validation is purely to make it possible to provide a nicer user experience. For instance, if you don't allow uploading a file more than 5MB, you could use client-side validation to check that the file the user has chosen isn't more than 5MB in size and give them a nice friendly message if it is (so they don't spend all that time uploading only to get the result thrown away at the server), but you must also enforce that limit at the server, as all client-side limits (and other validations) can be circumvented.
Try that
First place
global $var;
$var = 'value';
Second place
global $var;
if (isset($_POST['save_exit']))
{
echo $var;
}
Or if you want to be more explicit you can use the globals array:
$GLOBALS['var'] = 'test';
// after that
echo $GLOBALS['var'];
And here is third options which has nothing to do with PHP global that is due to the lack of clarity and information in the question. So if you have form in HTML and you want to pass "variable"/value to another PHP script you have to do the following:
HTML form
<form action="script.php" method="post">
<input type="text" value="<?php echo $var?>" name="var" />
<input type="submit" value="Send" />
</form>
PHP script ("script.php")
<?php
$var = $_POST['var'];
echo $var;
?>
You can also use gzip
for taking backup of one collection and compressing the backup on the fly:
mongodump --db somedb --collection somecollection --out - | gzip > collectiondump.gz
or with a date in the file name:
mongodump --db somedb --collection somecollection --out - | gzip > dump_`date "+%Y-%m-%d"`.gz
Update:
Backup all collections of a database in a date folder. The files are gziped:
mongodump --db somedb --gzip --out /backups/`date +"%Y-%m-%d"`
Or for a single archive:
mongodump --db somedb --gzip --archive > dump_`date "+%Y-%m-%d"`.gz
Or when mongodb is running inside docker:
docker exec <CONTAINER> sh -c 'exec mongodump --db somedb --gzip --archive' > dump_`date "+%Y-%m-%d"`.gz
Building on Preet Sangha's solution, the following should safely cover the scenario where you're working with a large solution with the potential for several Inner Exceptions.
try
{
object result = processClass.InvokeMethod("Create", methodArgs);
}
catch (Exception e)
{
// Here I was hoping to get an error code.
if (ExceptionContainsErrorCode(e, 10004))
{
// Execute desired actions
}
}
...
private bool ExceptionContainsErrorCode(Exception e, int ErrorCode)
{
Win32Exception winEx = e as Win32Exception;
if (winEx != null && ErrorCode == winEx.ErrorCode)
return true;
if (e.InnerException != null)
return ExceptionContainsErrorCode(e.InnerException, ErrorCode);
return false;
}
This code has been unit tested.
I won't harp too much on the need for coming to appreciate and implement good practice when it comes to Exception Handling by managing each expected Exception Type within their own blocks.
The format you need is:
'2007-01-01 10:00:00'
i.e. yyyy-MM-dd HH:mm:ss
If possible, however, use a parameterised query as this frees you from worrying about the formatting details.
I asked a similar question (C++ openframeworks passing void from other classes) but the answer I found was clearer so here the explanation for future records:
it’s easier to use std::function as in:
void draw(int grid, std::function<void()> element)
and then call as:
grid.draw(12, std::bind(&BarrettaClass::draw, a, std::placeholders::_1));
or even easier:
grid.draw(12, [&]{a.draw()});
where you create a lambda that calls the object capturing it by reference
I would like to show a little example on how is
and ==
are involved in immutable types. Try that:
a = 19998989890
b = 19998989889 +1
>>> a is b
False
>>> a == b
True
is
compares two objects in memory, ==
compares their values. For example, you can see that small integers are cached by Python:
c = 1
b = 1
>>> b is c
True
You should use ==
when comparing values and is
when comparing identities. (Also, from an English point of view, "equals" is different from "is".)
The URL is missing the protocol information. PHP thinks it is a filesystem path and tries to access the file at the specified location. However, the location doesn't actually exist in your filesystem and an error is thrown.
You'll need to add http
or https
at the beginning of the URL you're trying to get the contents from:
$json = json_decode(file_get_contents('http://...'));
As for the following error:
Unable to find the wrapper - did you forget to enable it when you configured PHP?
Your Apache installation probably wasn't compiled with SSL support. You could manually try to install OpenSSL and use it, or use cURL. I personally prefer cURL over file_get_contents()
. Here's a function you can use:
function curl_get_contents($url)
{
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
Usage:
$url = 'https://...';
$json = json_decode(curl_get_contents($url));
awk '$3 ~ /snow/ { print }' dummy_file
I think you mean the active state
button:active{
//some styling
}
These are all the possible pseudo states a link can have in CSS:
a:link {color:#FF0000;} /* unvisited link, same as regular 'a' */
a:hover {color:#FF00FF;} /* mouse over link */
a:focus {color:#0000FF;} /* link has focus */
a:active {color:#0000FF;} /* selected link */
a:visited {color:#00FF00;} /* visited link */
See also: http://www.w3.org/TR/selectors/#the-user-action-pseudo-classes-hover-act
So this won't be the case for everyone but I thought I'd post it here anyway as there doesn't seem be any answers relating to it.
In my case I was working on an app that was being developed in ReactNative, my issue was that although my signing was correct on the main app target the test target did not have any signing applied to it.
For some reason React Native requires that both your app target and your test target are signed in order to install the app on a device.
It does specify this in the official documentation on building for device however its the only instance I have ever seen where the test target is built alongside the app for anything other than testing.
In order to sign your test target, go to your project settings by opening the project navigator (?1) and select your project at the top.
Inside the main editor select your main app target under Targets (should have the same name as your project) and ensure the signing is correct, then select the test target (likely just under your main app target, it should be the same name with Tests appended) and make sure its signed in the same way.
Rebuild your app and it should now install successfully.
Credit for this goes to Leo Lei, his answer here saved me a lot of headache: https://stackoverflow.com/a/48657358/732844
As an aside, if anyone knows why react native requires your test target be built alongside your app target could they let me know? The only reason I can think of is to streamline the interface so react can build a single app and do both running and testing without needing to rebuild but i'm just guessing with that one.
I've meet the probleme recently. The trouble is coming when the filename lenght is greather than 20 characters. So the bypass is to change your filename length, but the trick is also a good one.
$.ajaxSetup({async: false}); // passage en mode synchrone
$.ajax({
url: pathpays,
success: function(data) {
//debug(data);
$(data).find("a:contains(.png),a:contains(.jpg)").each(function() {
var image = $(this).attr("href");
// will loop through
debug("Found a file: " + image);
text += '<img class="arrondie" src="' + pathpays + image + '" />';
});
text = text + '</div>';
//debug(text);
}
});
After more investigation the trouble is coming from ajax request: Put an eye to the html code returned by ajax:
<a href="Paris-Palais-de-la-cite%20-%20Copie.jpg">Paris-Palais-de-la-c..></a>
</td>
<td align="right">2015-09-05 09:50 </td>
<td align="right">4.3K</td>
<td> </td>
</tr>
As you can see the filename is splitted after the character 20, so the $(data).find("a:contains(.png))
is not able to find the correct extention.
But if you check the value of the href
parameter it contents the fullname of the file.
I dont know if I can to ask to ajax to return the full filename in the text area?
Hope to be clear
I've found the right test to gather all files:
$(data).find("[href$='.jpg'],[href$='.png']").each(function() {
var image = $(this).attr("href");
The only problem with threads is accessing the same object from different threads without synchronization.
If each function only uses parameters for reading and local variables, they don't need any synchronization to be thread-safe.
If you're using Google's guava general-purpose libraries (and quite honestly, any new Java project probably should be), this is insanely trivial with the Splitter class:
for (String substring : Splitter.fixedLength(4).split(inputString)) {
doSomethingWith(substring);
}
and that's it. Easy as!
You can easily pick image from asset without UIImage(named: "green-square-Retina")
.
Instead use the image object directly from bundle.
Start typing the image name and you will get suggestions with actual image from bundle. It is advisable practice and less prone to error.
See this Stackoverflow answer for reference.
Try this code
private void clearAppData() {
try {
if (Build.VERSION_CODES.KITKAT <= Build.VERSION.SDK_INT) {
((ActivityManager)getSystemService(ACTIVITY_SERVICE)).clearApplicationUserData();
} else {
Runtime.getRuntime().exec("pm clear " + getApplicationContext().getPackageName());
}
} catch (Exception e) {
e.printStackTrace();
}
}
If you want a simple one liner that will do it all for you (assuming by no value you mean a blank cell):
=(ROWS(A:A) + ROWS(B:B) + ROWS(C:C)) - COUNTIF(A:C, "")
If by no value you mean the cell contains a 0
=(ROWS(A:A) + ROWS(B:B) + ROWS(C:C)) - COUNTIF(A:C, 0)
The formula works by first summing up all the rows that are in columns A, B, and C (if you need to count more rows, just increase the columns in the range. E.g. ROWS(A:A) + ROWS(B:B) + ROWS(C:C) + ROWS(D:D) + ... + ROWS(Z:Z)
).
Then the formula counts the number of values in the same range that are blank (or 0 in the second example).
Last, the formula subtracts the total number of cells with no value from the total number of rows. This leaves you with the number of cells in each row that contain a value
<table>
<ng-container *ngFor="let group of groups">
<tr><td><h2>{{group.name}}</h2></td></tr>
<tr *ngFor="let item of group.items"><td>{{item}}</td></tr>
</ng-container>
</table>
For me i made the fallowing as a test.
string_1="abcd"
def test(string_1):
i = 0
p = ""
x = len(string_1)
while i < x:
y = (string_1)[i]
i=i+1
s = chr(ord(y) + 1)
p=p+s
print(p)
test(string_1)
All you have to do is create a subset of your dataframe where the isin method evaluates to False:
df = df[df['Column Name'].isin(['Value']) == False]
I have included JS (for OG's) and TS versions below.
.html
<a [routerLink]="['/search', { tag: 'fish' } ]">A link</a>
In the above I am using the link parameter array see sources below for more information.
routing.js
(function(app) {
app.routing = ng.router.RouterModule.forRoot([
{ path: '', component: indexComponent },
{ path: 'search', component: searchComponent }
]);
})(window.app || (window.app = {}));
searchComponent.js
(function(app) {
app.searchComponent =
ng.core.Component({
selector: 'search',
templateUrl: 'view/search.html'
})
.Class({
constructor: [ ng.router.Router, ng.router.ActivatedRoute, function(router, activatedRoute) {
// Pull out the params with activatedRoute...
console.log(' params', activatedRoute.snapshot.params);
// Object {tag: "fish"}
}]
}
});
})(window.app || (window.app = {}));
routing.ts (excerpt)
const appRoutes: Routes = [
{ path: '', component: IndexComponent },
{ path: 'search', component: SearchComponent }
];
@NgModule({
imports: [
RouterModule.forRoot(appRoutes)
// other imports here
],
...
})
export class AppModule { }
searchComponent.ts
import 'rxjs/add/operator/switchMap';
import { OnInit } from '@angular/core';
import { Router, ActivatedRoute, Params } from '@angular/router';
export class SearchComponent implements OnInit {
constructor(
private route: ActivatedRoute,
private router: Router
) {}
ngOnInit() {
this.route.params
.switchMap((params: Params) => doSomething(params['tag']))
}
More infos:
"Link Parameter Array" https://angular.io/docs/ts/latest/guide/router.html#!#link-parameters-array
"Activated Route - the one stop shop for route info" https://angular.io/docs/ts/latest/guide/router.html#!#activated-route
There is a way to use guards for individual (or multiple) attributes.
@debug: true;
header {
/* guard for attribute */
& when (@debug = true) {
background-color: yellow;
}
/* guard for nested class */
#title when (@debug = true) {
background-color: orange;
}
}
/* guard for class */
article when (@debug = true) {
background-color: red;
}
/* and when debug is off: */
article when not (@debug = true) {
background-color: green;
}
...and with Less 1.7; compiles to:
header {
background-color: yellow;
}
header #title {
background-color: orange;
}
article {
background-color: red;
}
I have never seen it done that way in JavaScript. If you want a function with optional parameters that get assigned default values if the parameters are omitted, here's a way to do it:
function(a, b) {
if (typeof a == "undefined") {
a = 10;
}
if (typeof b == "undefined") {
a = 20;
}
alert("a: " + a + " b: " + b);
}
If you are only interested in the direct parent, and not other ancestors, you can just use parent()
, and give it the selector, as in target.parent('div#hello')
.
Example: http://jsfiddle.net/6BX9n/
function fun(evt) {
var target = $(evt.target);
if (target.parent('div#hello').length) {
alert('Your clicked element is having div#hello as parent');
}
}
Or if you want to check to see if there are any ancestors that match, then use .parents()
.
Example: http://jsfiddle.net/6BX9n/1/
function fun(evt) {
var target = $(evt.target);
if (target.parents('div#hello').length) {
alert('Your clicked element is having div#hello as parent');
}
}
import matplotlib.pyplot as plt
...
plt.xlim(xmin=6.5, xmax = 12.5)
No, that's not really possible, as
The goal of the MD5 and its family of hashing functions is
Think that you can get the MD5 of any string, even very long. And the MD5 is only 16 bytes long (32 if you write it in hexa to store or distribute it more easily). If you could reverse them, you'd have a magical compacting scheme.
This being said, as there aren't so many short strings (passwords...) used in the world, you can test them from a dictionary (that's called "brute force attack") or even google for your MD5. If the word is common and wasn't salted, you have a reasonable chance to succeed...
#define USER_IS(c0,c1,c2,c3,c4,c5,c6,c7,c8,c9)\
ch0==c0 && ch1==c1 && ch2==c2 && ch3==c3 && ch4==c4 && ch5==c5 && ch6==c6 && ch7==c7 ;
#define ch0 'j'
#define ch1 'a'
#define ch2 'c'
#define ch3 'k'
#if USER_IS('j','a','c','k',0,0,0,0)
#define USER_VS "queen"
#elif USER_IS('q','u','e','e','n',0,0,0)
#define USER_VS "jack"
#endif
it basically a fixed length static char array initialized manually instead of a variable length static char array initialized automatically always ending with a terminating null char
I found a very clear example here which explains how the 'control is inverted'.
Classic code (without Dependency injection)
Here is how a code not using DI will roughly work:
Using dependency injection
Here is how a code using DI will roughly work:
The control of the dependencies is inverted from one being called to the one calling.
What problems does it solve?
Dependency injection makes it easy to swap with the different implementation of the injected classes. While unit testing you can inject a dummy implementation, which makes the testing a lot easier.
Ex: Suppose your application stores the user uploaded file in the Google Drive, with DI your controller code may look like this:
class SomeController
{
private $storage;
function __construct(StorageServiceInterface $storage)
{
$this->storage = $storage;
}
public function myFunction ()
{
return $this->storage->getFile($fileName);
}
}
class GoogleDriveService implements StorageServiceInterface
{
public function authenticate($user) {}
public function putFile($file) {}
public function getFile($file) {}
}
When your requirements change say, instead of GoogleDrive you are asked to use the Dropbox. You only need to write a dropbox implementation for the StorageServiceInterface. You don't have make any changes in the controller as long as Dropbox implementation adheres to the StorageServiceInterface.
While testing you can create the mock for the StorageServiceInterface with the dummy implementation where all the methods return null(or any predefined value as per your testing requirement).
Instead if you had the controller class to construct the storage object with the new
keyword like this:
class SomeController
{
private $storage;
function __construct()
{
$this->storage = new GoogleDriveService();
}
public function myFunction ()
{
return $this->storage->getFile($fileName);
}
}
When you want to change with the Dropbox implementation you have to replace all the lines where new
GoogleDriveService object is constructed and use the DropboxService. Besides when testing the SomeController class the constructor always expects the GoogleDriveService class and the actual methods of this class are triggered.
When is it appropriate and when not? In my opinion you use DI when you think there are (or there can be) alternative implementations of a class.
please use response.close()
to close to avoid "too many open files" error
for example:
r = requests.post("https://stream.twitter.com/1/statuses/filter.json", data={'track':toTrack}, auth=('username', 'passwd'))
....
r.close()
From Google Play Console, Select your app. Select Store Presence and select Pricing and Distribution from the side menu. There is a toggle switch to Publish and Unpublish app. Select UnPublish and click Submit Update Button in the top right corner.
You can access characters in strings in the same way as you would access an array index, e.g.
$length = strlen($string);
$thisWordCodeVerdeeld = array();
for ($i=0; $i<$length; $i++) {
$thisWordCodeVerdeeld[$i] = $string[$i];
}
You could also do:
$thisWordCodeVerdeeld = str_split($string);
However you might find it is easier to validate the string as a whole string, e.g. using regular expressions.
DatabaseUtils.queryNumEntries (since api:11) is useful alternative that negates the need for raw SQL(yay!).
SQLiteDatabase db = getReadableDatabase();
DatabaseUtils.queryNumEntries(db, "users",
"uname=? AND pwd=?", new String[] {loginname,loginpass});
I just wanted to add something to the answer of @NMrt who already pointed out:
you could encounter this error if your client is running the wrong TLS version, for example if the server is only running TLS 1.2.
With Framework 4.7.2, if you do not explicitly configure the target framework in your web.config like this
<system.web>
<compilation targetFramework="4.7" />
<httpRuntime targetFramework="4.7" />
</system.web>
your system default security protocols will be ignored and something "lower" might be used instead. In my case Ssl3/Tls instead of Tls13.
You can fix this also in code by setting the SecurityProtocol (keeps other protocols working):
System.Net.ServicePointManager.SecurityProtocol |= System.Net.SecurityProtocolType.Tls12 | System.Net.SecurityProtocolType.Tls11;
System.Net.ServicePointManager.SecurityProtocol &= ~System.Net.SecurityProtocolType.Ssl3;
or even by adding registry keys to enable or disable strong crypto
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001
This blog post pointed me to the right direction and explains the backgrounds better than I can:
In my case I had to use the popover template option and add my own css class to the template html:
$("[data-toggle='popover']").popover(
{
container: 'body',
template: '<div class="popover top-modal" role="tooltip"><div class="arrow"></div><h3 class="popover-title"></h3><div class="popover-content"></div></div>'
});
Css:
.top-modal {
z-index: 99999;
}
Uploading files is actually possible with AJAX these days. Yes, AJAX, not some crappy AJAX wannabes like swf or java.
This example might help you out: https://webblocks.nl/tests/ajax/file-drag-drop.html
(It also includes the drag/drop interface but that's easily ignored.)
Basically what it comes down to is this:
<input id="files" type="file" />
<script>
document.getElementById('files').addEventListener('change', function(e) {
var file = this.files[0];
var xhr = new XMLHttpRequest();
(xhr.upload || xhr).addEventListener('progress', function(e) {
var done = e.position || e.loaded
var total = e.totalSize || e.total;
console.log('xhr progress: ' + Math.round(done/total*100) + '%');
});
xhr.addEventListener('load', function(e) {
console.log('xhr upload complete', e, this.responseText);
});
xhr.open('post', '/URL-HERE', true);
xhr.send(file);
});
</script>
(demo: http://jsfiddle.net/rudiedirkx/jzxmro8r/)
So basically what it comes down to is this =)
xhr.send(file);
Where file
is typeof Blob
: http://www.w3.org/TR/FileAPI/
Another (better IMO) way is to use FormData
. This allows you to 1) name a file, like in a form and 2) send other stuff (files too), like in a form.
var fd = new FormData;
fd.append('photo1', file);
fd.append('photo2', file2);
fd.append('other_data', 'foo bar');
xhr.send(fd);
FormData
makes the server code cleaner and more backward compatible (since the request now has the exact same format as normal forms).
All of it is not experimental, but very modern. Chrome 8+ and Firefox 4+ know what to do, but I don't know about any others.
This is how I handled the request (1 image per request) in PHP:
if ( isset($_FILES['file']) ) {
$filename = basename($_FILES['file']['name']);
$error = true;
// Only upload if on my home win dev machine
if ( isset($_SERVER['WINDIR']) ) {
$path = 'uploads/'.$filename;
$error = !move_uploaded_file($_FILES['file']['tmp_name'], $path);
}
$rsp = array(
'error' => $error, // Used in JS
'filename' => $filename,
'filepath' => '/tests/uploads/' . $filename, // Web accessible
);
echo json_encode($rsp);
exit;
}
The example you copied from is using data in the form of an array holding arrays, you are using data in the form of an array holding objects. Objects and arrays are not the same, and because of this they use different syntaxes for accessing data.
If you don't know the variable names, just do a var_dump($blog);
within the loop to see them.
The simplest method - access $blog as an object directly:
Try (assuming those variables are correct):
<?php
foreach ($blogs as $blog) {
$id = $blog->id;
$title = $blog->title;
$content = $blog->content;
?>
<h1> <?php echo $title; ?></h1>
<h1> <?php echo $content; ?> </h1>
<?php } ?>
The alternative method - access $blog as an array:
Alternatively, you may be able to turn $blog
into an array with get_object_vars
(documentation):
<?php
foreach($blogs as &$blog) {
$blog = get_object_vars($blog);
$id = $blog['id'];
$title = $blog['title'];
$content = $blog['content'];
?>
<h1> <?php echo $title; ?></h1>
<h1> <?php echo $content; ?> </h1>
<?php } ?>
It's worth mentioning that this isn't necessarily going to work with nested objects so its viability entirely depends on the structure of your $blog
object.
Better than either of the above - Inline PHP Syntax
Having said all that, if you want to use PHP in the most readable way, neither of the above are right. When using PHP intermixed with HTML, it's considered best practice by many to use PHP's alternative syntax, this would reduce your whole code from nine to four lines:
<?php foreach($blogs as $blog): ?>
<h1><?php echo $blog->title; ?></h1>
<p><?php echo $blog->content; ?></p>
<?php endforeach; ?>
Hope this helped.
A very good example that I can give you for classcastException in Java is while using "Collection"
List list = new ArrayList();
list.add("Java");
list.add(new Integer(5));
for(Object obj:list) {
String str = (String)obj;
}
This above code will give you ClassCastException on runtime. Because you are trying to cast Integer to String, that will throw the exception.
Apparently adb reverse was introduced in Android 5.0
Getting "error: closed" twice on "adb reverse"
I guess we have to go ahead with kzzzf's answer
Perhaps I had a more straight-forward problem to solve. My 'for instance' was in JPA with Hibernate as the JPA provider.
I split the three selects (two in a second case) into multiple select and combined the collections returned myself, effectively replacing a 'union all'.
This exact question is answered on mySql workbench-faq:
Hover over an acronym to view a description, and see the Section 8.1.11.2, “The Columns Tab” and MySQL CREATE TABLE documentation for additional details.
That means hover over an acronym in the mySql Workbench table editor.
From "Fixing LINQ Error: Sequence contains no elements":
When you get the LINQ error "Sequence contains no elements", this is usually because you are using the
First()
orSingle()
command rather thanFirstOrDefault()
andSingleOrDefault()
.
This can also be caused by the following commands:
FirstAsync()
SingleAsync()
Last()
LastAsync()
Max()
Min()
Average()
Aggregate()
/**
* this class performs all the work, shows dialog before the work and dismiss it after
*/
public class ProgressTask extends AsyncTask<String, Void, Boolean> {
public ProgressTask(ListActivity activity) {
this.activity = activity;
dialog = new ProgressDialog(activity);
}
/** progress dialog to show user that the backup is processing. */
private ProgressDialog dialog;
/** application context. */
private ListActivity activity;
protected void onPreExecute() {
this.dialog.setMessage("Progress start");
this.dialog.show();
}
@Override
protected void onPostExecute(final Boolean success) {
if (dialog.isShowing()) {
dialog.dismiss();
}
MessageListAdapter adapter = new MessageListAdapter(activity, titles);
setListAdapter(adapter);
adapter.notifyDataSetChanged();
if (success) {
Toast.makeText(context, "OK", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(context, "Error", Toast.LENGTH_LONG).show();
}
}
protected Boolean doInBackground(final String... args) {
try{
BaseFeedParser parser = new BaseFeedParser();
messages = parser.parse();
List<Message> titles = new ArrayList<Message>(messages.size());
for (Message msg : messages){
titles.add(msg);
}
activity.setMessages(titles);
return true;
} catch (Exception e)
Log.e("tag", "error", e);
return false;
}
}
}
public class Soirees extends ListActivity {
private List<Message> messages;
private TextView tvSorties;
private MyProgressDialog dialog;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.sorties);
tvSorties=(TextView)findViewById(R.id.TVTitle);
tvSorties.setText("Programme des soirées");
// just call here the task
AsyncTask task = new ProgressTask(this).execute();
}
public void setMessages(List<Message> msgs) {
messages = msgs;
}
}
You can use groupBy of angular.filter module.
so you can do something like this:
JS:
$scope.players = [
{name: 'Gene', team: 'alpha'},
{name: 'George', team: 'beta'},
{name: 'Steve', team: 'gamma'},
{name: 'Paula', team: 'beta'},
{name: 'Scruath', team: 'gamma'}
];
HTML:
<ul ng-repeat="(key, value) in players | groupBy: 'team'">
Group name: {{ key }}
<li ng-repeat="player in value">
player: {{ player.name }}
</li>
</ul>
RESULT:
Group name: alpha
* player: Gene
Group name: beta
* player: George
* player: Paula
Group name: gamma
* player: Steve
* player: Scruath
UPDATE: jsbin Remember the basic requirements to use angular.filter
, specifically note you must add it to your module's dependencies:
(1) You can install angular-filter using 4 different methods:
- clone & build this repository
- via Bower: by running $ bower install angular-filter from your terminal
- via npm: by running $ npm install angular-filter from your terminal
- via cdnjs http://www.cdnjs.com/libraries/angular-filter
(2) Include angular-filter.js (or angular-filter.min.js) in your index.html, after including Angular itself.
(3) Add 'angular.filter' to your main module's list of dependencies.
what might get you where you want in plain SQL92:
select * from tbl where lower(answer) = upper(answer)
or, if you also want to be robust for leading/trailing spaces:
select * from tbl where lower(answer) = trim(upper(answer))
You need to use JSON.stringify
to first serialize your object to JSON, and then specify the contentType
so your server understands it's JSON. This should do the trick:
$.ajax({
url: url,
type: "POST",
data: JSON.stringify(data),
contentType: "application/json",
complete: callback
});
Note that the JSON
object is natively available in browsers that support JavaScript 1.7 / ECMAScript 5 or later. If you need legacy support you can use json2.
I use the readonly
attribute instead of disabled
attribute - as this will still submit the value when the field is readonly.
Note: Any presence of the readonly attribute will make the field readonly
even if set to false, so hence why I branch the editor for code like below.
@if (disabled)
{
@Html.EditorFor(model => contact.EmailAddress, new { htmlAttributes = new { @class = "form-control", @readonly = "" } })
}
else
{
@Html.EditorFor(model => contact.EmailAddress, new { htmlAttributes = new { @class = "form-control" } })
}
In short: I don't think you can, but there seems to be a workaround:.
If you take a look into the Android Resource here:
http://developer.android.com/guide/topics/resources/string-resource.html
You see than under the array section (string array, at least), the "RESOURCE REFERENCE" (as you get from an XML) does not specify a way to address the individual items. You can even try in your XML to use "@array/yourarrayhere". I know that in design time you will get the first item. But that is of no practical use if you want to use, let's say... the second, of course.
HOWEVER, there is a trick you can do. See here:
Referencing an XML string in an XML Array (Android)
You can "cheat" (not really) the array definition by addressing independent strings INSIDE the definition of the array. For example, in your strings.xml:
<string name="earth">Earth</string>
<string name="moon">Moon</string>
<string-array name="system">
<item>@string/earth</item>
<item>@string/moon</item>
</string-array>
By using this, you can use "@string/earth" and "@string/moon" normally in your "android:text" and "android:title" XML fields, and yet you won't lose the ability to use the array definition for whatever purposes you intended in the first place.
Seems to work here on my Eclipse. Why don't you try and tell us if it works? :-)
length of string ==how many bits that string having, size==size of those bits, In strings both are same if the editor allocates size of character is 1 byte
Field.CurrentPage only works for Filter fields (also called page fields).
If you want to filter a row/column field, you have to cycle through the individual items, like so:
Sub FilterPivotField(Field As PivotField, Value)
Application.ScreenUpdating = False
With Field
If .Orientation = xlPageField Then
.CurrentPage = Value
ElseIf .Orientation = xlRowField Or .Orientation = xlColumnField Then
Dim i As Long
On Error Resume Next ' Needed to avoid getting errors when manipulating PivotItems that were deleted from the data source.
' Set first item to Visible to avoid getting no visible items while working
.PivotItems(1).Visible = True
For i = 2 To Field.PivotItems.Count
If .PivotItems(i).Name = Value Then _
.PivotItems(i).Visible = True Else _
.PivotItems(i).Visible = False
Next i
If .PivotItems(1).Name = Value Then _
.PivotItems(1).Visible = True Else _
.PivotItems(1).Visible = False
End If
End With
Application.ScreenUpdating = True
End Sub
Then, you would just call:
FilterPivotField ActiveSheet.PivotTables("PivotTable2").PivotFields("SavedFamilyCode"), "K123223"
Naturally, this gets slower the more there are individual different items in the field. You can also use SourceName instead of Name if that suits your needs better.
You should supply the SqlParameter instances in the following way:
context.Database.SqlQuery<myEntityType>(
"mySpName @param1, @param2, @param3",
new SqlParameter("param1", param1),
new SqlParameter("param2", param2),
new SqlParameter("param3", param3)
);
From Save MySQL query results into a text or CSV file:
MySQL provides an easy mechanism for writing the results of a select statement into a text file on the server. Using extended options of the INTO OUTFILE nomenclature, it is possible to create a comma separated value (CSV) which can be imported into a spreadsheet application such as OpenOffice or Excel or any other application which accepts data in CSV format.
Given a query such as
SELECT order_id,product_name,qty FROM orders
which returns three columns of data, the results can be placed into the file /tmp/orders.txt using the query:
SELECT order_id,product_name,qty FROM orders INTO OUTFILE '/tmp/orders.txt'
This will create a tab-separated file, each row on its own line. To alter this behavior, it is possible to add modifiers to the query:
SELECT order_id,product_name,qty FROM orders INTO OUTFILE '/tmp/orders.csv' FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY '\n'
In this example, each field will be enclosed in double quotes, the fields will be separated by commas, and each row will be output on a new line separated by a newline (\n). Sample output of this command would look like:
"1","Tech-Recipes sock puppet","14.95" "2","Tech-Recipes chef's hat","18.95"
Keep in mind that the output file must not already exist and that the user MySQL is running as has write permissions to the directory MySQL is attempting to write the file to.
Syntax
SELECT Your_Column_Name
FROM Your_Table_Name
INTO OUTFILE 'Filename.csv'
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY '\n'
Or you could try to grab the output via the client:
You could try executing the query from the your local client and redirect the output to a local file destination:
mysql -user -pass -e "select cols from table where cols not null" > /tmp/output
Hint: If you don't specify an absoulte path but use something like INTO OUTFILE 'output.csv'
or INTO OUTFILE './output.csv'
, it will store the output file to the directory specified by show variables like 'datadir';
.
There is also a convenient shortcut to get all elements of the array starting with specified index. For example "${A[@]:1}" would be the "tail" of the array, that is the array without its first element.
version=4.7.1
A=( ${version//\./ } )
echo "${A[@]}" # 4 7 1
B=( "${A[@]:1}" )
echo "${B[@]}" # 7 1
This error can also happen when you've downloaded a new version of Google Play Services and not installed the latest SDK. Thats what happened to me. So, as the others mentioned, if you try to import Google Play Services and then open the console, you'll see a compile error. Try installing all the recent Android SDKs and try again, if this is the case.
A void*
does not mean anything. It is a pointer, but the type that it points to is not known.
It's not that it can return "anything". A function that returns a void*
generally is doing one of the following:
operator new
and malloc
return: a pointer to a block of memory of a certain size. Since the memory does not have a type (because it does not have a properly constructed object in it yet), it is typeless. IE: void
.This construct is nothing like dynamic
or object
in C#. Those tools actually know what the original type is; void*
does not. This makes it far more dangerous than any of those, because it is very easy to get it wrong, and there's no way to ask if a particular usage is the right one.
And on a personal note, if you see code that uses void*
's "often", you should rethink what code you're looking at. void*
usage, especially in C++, should be rare, used primary for dealing in raw memory.
If you are the only person creating tables, this may not be relevant, but several solutions will give a different number of output rows from the code in question, when one of the tables may not contain unique rows.
When I see an in with two columns, I can imagine it to mean two things:
Scenario 1 is fairly trivial, simply use two IN statements.
In line with most existing answers, I hereby provide an overview of mentioned and additional approaches for Scenario 2 (and a brief judgement):
As provided by @mrdenny, EXISTS sounds exactly as what you are looking for, here is his example:
SELECT * FROM T1
WHERE EXISTS
(SELECT * FROM T2
WHERE T1.a=T2.a and T1.b=T2.b)
This is a very concise way to join, but unfortunately most SQL dialects, including SQL server do not currently suppport it.
SELECT * FROM T1
LEFT SEMI JOIN T2 ON T1.a=T2.a and T1.b=T2.b
As mentioned by @cataclysm using two IN statements can do the trick as well, perhaps it will even outperform the other solutions. However, what you should be very carefull with is code duplication. If you ever want to select from a different table, or change the where statement, it is an increased risk that you create inconsistencies in your logic.
Basic solution
SELECT * from T1
WHERE a IN (SELECT a FROM T2 WHERE something)
AND b IN (SELECT b FROM T2 WHERE something)
Solution without code duplication (I believe this does not work in regular SQL Server queries)
WITH mytmp AS (SELECT a, b FROM T2 WHERE something);
SELECT * from T1
WHERE a IN (SELECT a FROM mytmp)
AND b IN (SELECT b FROM mytmp)
The reason why I don't recommend using an inner join as a filter, is because in practice people often let duplicates in the right table cause duplicates in the left table. And then to make matters worse, they sometimes make the end result distinct whilst the left table may actually not need to be unique (or not unique in the columns you select). Futhermore it gives you the chance to actually select a column that does not exists in the left table.
SELECT T1.* FROM T1
INNER JOIN
(SELECT DISTINCT a, b FROM T2) AS T2sub
ON T1.a=T2sub.a AND T1.b=T2sub.b
Most common mistakes:
The functional problem is that if you use a separator which might occur in a column, it gets tricky to ensure that the outcome is 100% accurate. The technical problem is that this method often incurs type conversions and completely ignores indexes, resulting in possibly horrible performance. Despite these problems, I have to admit that I sometimes still use it for ad-hoc queries on small datasets.
SELECT * FROM T1
WHERE CONCAT(a,"_",b) IN
(SELECT CONCAT(a,"_",b) FROM T2)
Note that if your columns are numeric, some SQL dialects will require you to cast them to strings first. I believe SQL server will do this automatically.
To wrap things up: As usual there are many ways to do this in SQL, using safe choices will avoid suprises and save you time and headaces in the long run.
If you have bg.png as your background image then simply:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/bg"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="@string/hello_world"/>
</RelativeLayout>
Use GroupBy.sum
:
df.groupby(['Fruit','Name']).sum()
Out[31]:
Number
Fruit Name
Apples Bob 16
Mike 9
Steve 10
Grapes Bob 35
Tom 87
Tony 15
Oranges Bob 67
Mike 57
Tom 15
Tony 1
Try This:
sqlplus -s ${ORA_CONN_STR} <<EOF >/dev/null
I have actually followed this example and it worked for me :)
NameVirtualHost *:80
<VirtualHost *:80>
ServerName mysite.example.com
Redirect permanent / https://mysite.example.com/
</VirtualHost>
<VirtualHost _default_:443>
ServerName mysite.example.com
DocumentRoot /usr/local/apache2/htdocs
SSLEngine On
# etc...
</VirtualHost>
Then do:
/etc/init.d/httpd restart
as ehogue said, put this in your CREATE TABLE
FOREIGN KEY (customer_id) REFERENCES customers(customer_id)
alternatively, if you already have the table created, use an ALTER TABLE command:
ALTER TABLE `accounts`
ADD CONSTRAINT `FK_myKey` FOREIGN KEY (`customer_id`) REFERENCES `customers` (`customer_id`) ON DELETE CASCADE ON UPDATE CASCADE;
One good way to start learning these commands is using the MySQL GUI Tools, which give you a more "visual" interface for working with your database. The real benefit to that (over Access's method), is that after designing your table via the GUI, it shows you the SQL it's going to run, and hence you can learn from that.
Your definition of myFunction is wrong. It should be:
myFunction()
{
# same as before
}
or:
function myFunction
{
# same as before
}
Anyway, it looks fine and works fine for me on Bash 3.2.48.
Yes, that is normal behavior. You basically read to the end of the file the first time (you can sort of picture it as reading a tape), so you can't read any more from it unless you reset it, by either using f.seek(0)
to reposition to the start of the file, or to close it and then open it again which will start from the beginning of the file.
If you prefer you can use the with
syntax instead which will automatically close the file for you.
e.g.,
with open('baby1990.html', 'rU') as f:
for line in f:
print line
once this block is finished executing, the file is automatically closed for you, so you could execute this block repeatedly without explicitly closing the file yourself and read the file this way over again.
Its only possible to get the WSDL if the webservice is configured to deliver it. Therefor you have to specify a serviceBehavior and enable httpGetEnabled:
<serviceBehaviors>
<behavior name="BindingBehavior">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
In case the webservice is only accessible via https you have to enable httpsGetEnabled instead of httpGetEnabled.
You need to run Set-ExecutionPolicy
:
Set-ExecutionPolicy Unrestricted <-- Will allow unsigned PowerShell scripts to run.
Set-ExecutionPolicy Restricted <-- Will not allow unsigned PowerShell scripts to run.
Set-ExecutionPolicy RemoteSigned <-- Will allow only remotely signed PowerShell scripts to run.
All the answers here didn't work for me. I used the hammer method:
find ~/.m2/ -name "*.lastUpdated" | xargs rm
That fixed the problem :-)
Here is pretty printed string ready formated seconds elapsed similar to google search time took to search:
long startTime = System.nanoTime();
// ... methodToTime();
long endTime = System.nanoTime();
long duration = (endTime - startTime);
long seconds = (duration / 1000) % 60;
// formatedSeconds = (0.xy seconds)
String formatedSeconds = String.format("(0.%d seconds)", seconds);
System.out.println("formatedSeconds = "+ formatedSeconds);
// i.e actual formatedSeconds = (0.52 seconds)
To fix it, re-initialize and follow the proper code sequence:
git init
git add .
git commit -m 'message'
git push -u origin master
for i in count:
means for i in 7:
, which won't work. The bit after the in
should be of an iterable type, not a number. Try this:
for i in range(count):
Basically, the module cannot be instantiated. When a class includes a module, a proxy superclass is generated that provides access to all the module methods as well as the class methods.
A module can be included by multiple classes. Modules cannot be inherited, but this "mixin" model provides a useful type of "multiple inheritrance". OO purists will disagree with that statement, but don't let purity get in the way of getting the job done.
(This answer originally linked to http://www.rubycentral.com/pickaxe/classes.html
, but that link and its domain are no longer active.)
I would do it like the following: In the handler for the onclick event of the button (not submit) check the event object's keycode. If it is "enter" I would return false.
Short versatile answer (fits to other national languages, even Lithuanian or Russian)
nano .profile
or in Catalina or newer nano .zshenv
export LC_ALL=en_US.UTF-8
This solved for me even small country rare national characters. You may need to close and open Terminal to make changes effective.
Also if you like Linux behavior (use lot of Alt shortcuts like Alt+. or Alt+, in mc) then you should disable Mac style Option key function:
Terminal->Preferences->Profiles->Keyboard and check box:
Use Option as Meta key
I found this post in google as the second top result, first was using exec :(
Anyway, while this did not suite my needs exactly.. I decided to post an answer for others with my quick but extended version of this.
SCRIPT FEATURES
Anyway, onto the script.. While it may look like a lot.. Remember there is excess in here.. So feel free to delete the reporting sections as needed...
Also it may look messy as well and certain things could be cleaned up easily... So dont comment about it, its just a quick script with basic comments thrown in.. NOT FOR LIVE USE.. But easy to clean up for live use!
In this example, it is run from a directory that is inside of the root www / public_html folder.. So only needs to travel up one folder to get to the root.
<?php
// DIRECTORY WE WANT TO BACKUP
$pathBase = '../'; // Relate Path
// ZIP FILE NAMING ... This currently is equal to = sitename_www_YYYY_MM_DD_backup.zip
$zipPREFIX = "sitename_www";
$zipDATING = '_' . date('Y_m_d') . '_';
$zipPOSTFIX = "backup";
$zipEXTENSION = ".zip";
// SHOW PHP ERRORS... REMOVE/CHANGE FOR LIVE USE
ini_set('display_errors',1);
ini_set('display_startup_errors',1);
error_reporting(-1);
// ############################################################################################################################
// NO CHANGES NEEDED FROM THIS POINT
// ############################################################################################################################
// SOME BASE VARIABLES WE MIGHT NEED
$iBaseLen = strlen($pathBase);
$iPreLen = strlen($zipPREFIX);
$iPostLen = strlen($zipPOSTFIX);
$sFileZip = $pathBase . $zipPREFIX . $zipDATING . $zipPOSTFIX . $zipEXTENSION;
$oFiles = array();
$oFiles_Error = array();
$oFiles_Previous = array();
// SIMPLE HEADER ;)
echo '<center><h2>PHP Example: ZipArchive - Mayhem</h2></center>';
// CHECK IF BACKUP ALREADY DONE
if (file_exists($sFileZip)) {
// IF BACKUP EXISTS... SHOW MESSAGE AND THATS IT
echo "<h3 style='margin-bottom:0px;'>Backup Already Exists</h3><div style='width:800px; border:1px solid #000;'>";
echo '<b>File Name: </b>',$sFileZip,'<br />';
echo '<b>File Size: </b>',$sFileZip,'<br />';
echo "</div>";
exit; // No point loading our function below ;)
} else {
// NO BACKUP FOR TODAY.. SO START IT AND SHOW SCRIPT SETTINGS
echo "<h3 style='margin-bottom:0px;'>Script Settings</h3><div style='width:800px; border:1px solid #000;'>";
echo '<b>Backup Directory: </b>',$pathBase,'<br /> ';
echo '<b>Backup Save File: </b>',$sFileZip,'<br />';
echo "</div>";
// CREATE ZIPPER AND LOOP DIRECTORY FOR SUB STUFF
$oZip = new ZipArchive;
$oZip->open($sFileZip, ZipArchive::CREATE | ZipArchive::OVERWRITE);
$oFilesWrk = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($pathBase),RecursiveIteratorIterator::LEAVES_ONLY);
foreach ($oFilesWrk as $oKey => $eFileWrk) {
// VARIOUS NAMING FORMATS OF THE CURRENT FILE / DIRECTORY.. RELATE & ABSOLUTE
$sFilePath = substr($eFileWrk->getPathname(),$iBaseLen, strlen($eFileWrk->getPathname())- $iBaseLen);
$sFileReal = $eFileWrk->getRealPath();
$sFile = $eFileWrk->getBasename();
// WINDOWS CORRECT SLASHES
$sMyFP = str_replace('\\', '/', $sFileReal);
if (file_exists($sMyFP)) { // CHECK IF THE FILE WE ARE LOOPING EXISTS
if ($sFile!="." && $sFile!="..") { // MAKE SURE NOT DIRECTORY / . || ..
// CHECK IF FILE HAS BACKUP NAME PREFIX/POSTFIX... If So, Dont Add It,, List It
if (substr($sFile,0, $iPreLen)!=$zipPREFIX && substr($sFile,-1, $iPostLen + 4)!= $zipPOSTFIX.$zipEXTENSION) {
$oFiles[] = $sMyFP; // LIST FILE AS DONE
$oZip->addFile($sMyFP, $sFilePath); // APPEND TO THE ZIP FILE
} else {
$oFiles_Previous[] = $sMyFP; // LIST PREVIOUS BACKUP
}
}
} else {
$oFiles_Error[] = $sMyFP; // LIST FILE THAT DOES NOT EXIST
}
}
$sZipStatus = $oZip->getStatusString(); // GET ZIP STATUS
$oZip->close(); // WARNING: Close Required to append files, dont delete any files before this.
// SHOW BACKUP STATUS / FILE INFO
echo "<h3 style='margin-bottom:0px;'>Backup Stats</h3><div style='width:800px; height:120px; border:1px solid #000;'>";
echo "<b>Zipper Status: </b>" . $sZipStatus . "<br />";
echo "<b>Finished Zip Script: </b>",$sFileZip,"<br />";
echo "<b>Zip Size: </b>",human_filesize($sFileZip),"<br />";
echo "</div>";
// SHOW ANY PREVIOUS BACKUP FILES
echo "<h3 style='margin-bottom:0px;'>Previous Backups Count(" . count($oFiles_Previous) . ")</h3><div style='overflow:auto; width:800px; height:120px; border:1px solid #000;'>";
foreach ($oFiles_Previous as $eFile) {
echo basename($eFile) . ", Size: " . human_filesize($eFile) . "<br />";
}
echo "</div>";
// SHOW ANY FILES THAT DID NOT EXIST??
if (count($oFiles_Error)>0) {
echo "<h3 style='margin-bottom:0px;'>Error Files, Count(" . count($oFiles_Error) . ")</h3><div style='overflow:auto; width:800px; height:120px; border:1px solid #000;'>";
foreach ($oFiles_Error as $eFile) {
echo $eFile . "<br />";
}
echo "</div>";
}
// SHOW ANY FILES THAT HAVE BEEN ADDED TO THE ZIP
echo "<h3 style='margin-bottom:0px;'>Added Files, Count(" . count($oFiles) . ")</h3><div style='overflow:auto; width:800px; height:120px; border:1px solid #000;'>";
foreach ($oFiles as $eFile) {
echo $eFile . "<br />";
}
echo "</div>";
}
// CONVERT FILENAME INTO A FILESIZE AS Bytes/Kilobytes/Megabytes,Giga,Tera,Peta
function human_filesize($sFile, $decimals = 2) {
$bytes = filesize($sFile);
$sz = 'BKMGTP';
$factor = floor((strlen($bytes) - 1) / 3);
return sprintf("%.{$decimals}f", $bytes / pow(1024, $factor)) . @$sz[$factor];
}
?>
WHAT DOES IT DO??
It will simply zip the complete contents of the variable $pathBase and store the zip in that same folder. It does a simple detection for previous backups and skips them.
CRON BACKUP
This script i've just tested on linux and worked fine from a cron job with using an absolute url for the pathBase.
If you are using Python3:
print('[',end='');print(*L, sep=', ', end='');print(']')
I know this is an old answer but it might be helpful for others to know that another difference between the two is that if you have to add more than 2/3 values per loop to an array it's faster to use:
for($i = 0; $i < 10; $i++){
array_push($arr, $i, $i*2, $i*3, $i*4, ...)
}
instead of:
for($i = 0; $i < 10; $i++){
$arr[] = $i;
$arr[] = $i*2;
$arr[] = $i*3;
$arr[] = $i*4;
...
}
edit- Forgot to close the bracket for the for
conditional
[[ ]] double brackets are unsuported under certain version of SunOS and totally unsuported inside function declarations by : GNU bash, version 2.02.0(1)-release (sparc-sun-solaris2.6)
I just wanted to add this version because this is such a useful thread and I think this is a very simple implementation. I have used this multiple times in various types if multithreaded application:
Task.Factory.StartNew(() =>
{
DoLongRunningWork();
Application.Current.Dispatcher.BeginInvoke(DispatcherPriority.Normal, new Action(() =>
{ txt.Text = "Complete"; }));
});
Here is example which can give you some hints to iterate through existing array and add items to new array. I use UnderscoreJS Module to use as my utility file.
You can download from (https://npmjs.org/package/underscore)
$ npm install underscore
Here is small snippet to demonstrate how you can do it.
var _ = require("underscore");
var calendars = [1, "String", {}, 1.1, true],
newArray = [];
_.each(calendars, function (item, index) {
newArray.push(item);
});
console.log(newArray);
Another alternative is to use a lambda:
ent.bind("<Return>", (lambda event: name_of_function()))
Full code:
from tkinter import *
from tkinter.messagebox import showinfo
def reply(name):
showinfo(title="Reply", message = "Hello %s!" % name)
top = Tk()
top.title("Echo")
top.iconbitmap("Iconshock-Folder-Gallery.ico")
Label(top, text="Enter your name:").pack(side=TOP)
ent = Entry(top)
ent.bind("<Return>", (lambda event: reply(ent.get())))
ent.pack(side=TOP)
btn = Button(top,text="Submit", command=(lambda: reply(ent.get())))
btn.pack(side=LEFT)
top.mainloop()
As you can see, creating a lambda function with an unused variable "event" solves the problem.
You can use embed player with opacity over on a cover photo with a right positioned play icon. After this you can check the activeElement of your document.
Of course I know this is not an optimal solution, but works on mobile devices too.
<div style="position: relative;">
<img src="http://s3.amazonaws.com/content.newsok.com/newsok/images/mobile/play_button.png" style="position:absolute;top:0;left:0;opacity:1;" id="cover">
<iframe width="560" height="315" src="https://www.youtube.com/embed/2qhCjgMKoN4?controls=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in- picture" allowfullscreen style="position: absolute;top:0;left:0;opacity:0;" id="player"></iframe>
</div>
<script>
setInterval(function(){
if(document.activeElement instanceof HTMLIFrameElement){
document.getElementById('cover').style.opacity=0;
document.getElementById('player').style.opacity=1;
}
} , 50);
</script>
Try it on codepen: https://codepen.io/sarkiroka/pen/OryxGP
The key of your state should be the same as the name of your input field. Then you can do this in the handleEvent method;
this.setState({
[event.target.name]: event.target.value
});
For completeness, write_csv()
from the readr
package is faster and never writes row names
# install.packages('readr', dependencies = TRUE)
library(readr)
write_csv(t, "t.csv")
If you need to write big data out, use fwrite()
from the data.table
package. It's much faster than both write.csv
and write_csv
# install.packages('data.table')
library(data.table)
fwrite(t, "t.csv")
Below is a benchmark that Edouard published on his site
microbenchmark(write.csv(data, "baseR_file.csv", row.names = F),
write_csv(data, "readr_file.csv"),
fwrite(data, "datatable_file.csv"),
times = 10, unit = "s")
## Unit: seconds
## expr min lq mean median uq max neval
## write.csv(data, "baseR_file.csv", row.names = F) 13.8066424 13.8248250 13.9118324 13.8776993 13.9269675 14.3241311 10
## write_csv(data, "readr_file.csv") 3.6742610 3.7999409 3.8572456 3.8690681 3.8991995 4.0637453 10
## fwrite(data, "datatable_file.csv") 0.3976728 0.4014872 0.4097876 0.4061506 0.4159007 0.4355469 10
This may be useful for someone else looking at this question. I rewrote Justin's code to allow the method to receive the target size object required as well. This works very well when using Canvas. All credit should go to JUSTIN for his great initial code.
private Bitmap getBitmap(int path, Canvas canvas) {
Resources resource = null;
try {
final int IMAGE_MAX_SIZE = 1200000; // 1.2MP
resource = getResources();
// Decode image size
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeResource(resource, path, options);
int scale = 1;
while ((options.outWidth * options.outHeight) * (1 / Math.pow(scale, 2)) >
IMAGE_MAX_SIZE) {
scale++;
}
Log.d("TAG", "scale = " + scale + ", orig-width: " + options.outWidth + ", orig-height: " + options.outHeight);
Bitmap pic = null;
if (scale > 1) {
scale--;
// scale to max possible inSampleSize that still yields an image
// larger than target
options = new BitmapFactory.Options();
options.inSampleSize = scale;
pic = BitmapFactory.decodeResource(resource, path, options);
// resize to desired dimensions
int height = canvas.getHeight();
int width = canvas.getWidth();
Log.d("TAG", "1th scale operation dimenions - width: " + width + ", height: " + height);
double y = Math.sqrt(IMAGE_MAX_SIZE
/ (((double) width) / height));
double x = (y / height) * width;
Bitmap scaledBitmap = Bitmap.createScaledBitmap(pic, (int) x, (int) y, true);
pic.recycle();
pic = scaledBitmap;
System.gc();
} else {
pic = BitmapFactory.decodeResource(resource, path);
}
Log.d("TAG", "bitmap size - width: " +pic.getWidth() + ", height: " + pic.getHeight());
return pic;
} catch (Exception e) {
Log.e("TAG", e.getMessage(),e);
return null;
}
}
Justin's code is VERY effective at reducing the overhead of working with large Bitmaps.
You can call handleInputs()
add in your submit function before ajax
function handleInputs(){
$('input[type=checkbox]').each(function() {
if (!this.checked) {
$(this).attr("value","0");
}else{
$(this).attr("value","1");
}
});
}
It is perfectly working
You can set timeouts for all connections made from the jvm by changing the following System-properties:
System.setProperty("sun.net.client.defaultConnectTimeout", "10000");
System.setProperty("sun.net.client.defaultReadTimeout", "10000");
Every connection will time out after 10 seconds.
Setting 'defaultReadTimeout' is not needed, but shown as an example if you need to control reading.
*my_map.begin()
. See e.g. http://cplusplus.com/reference/stl/map/begin/.
Define the class before you use it:
class Something:
def out(self):
print("it works")
s = Something()
s.out()
You need to pass self
as the first argument to all instance methods.
So far all answers here seem to have significant downsides, are complicated (need to find the repo URI) or they don't do what the question probably asked for: How to get the Repo in a working state again with that older version of the file.
svn merge -r head:[revision-number-to-revert-to] [file-path]
is IMO the cleanest and simplest way to do this. Please note that bringing back a deleted file does not seem to work this way[1]. See also the following question: Better way to revert to a previous SVN revision of a file?
[1] For that you want svn cp -r [rev-number] [repo-URI/file-path]@[rev-number] [repo-URI/file-path] && svn up
, see also What is the correct way to restore a deleted file from SVN?
list out the installed packages in the virtualenv
step 1:
workon envname
step 2:
pip freeze
it will display the all installed packages and installed packages and versions
I am storing a class object into a string using toString() method. Now, I want to convert the string into that class object.
Your question is ambiguous. It could mean at least two different things, one of which is ... well ... a serious misconception on your part.
If you did this:
SomeClass object = ...
String s = object.toString();
then the answer is that there is no simple way to turn s
back into an instance of SomeClass
. You couldn't do it even if the toString()
method gave you one of those funky "SomeClass@xxxxxxxx" strings. (That string does not encode the state of the object, or even a reference to the object. The xxxxxxxx part is the object's identity hashcode. It is not unique, and cannot be magically turned back into a reference to the object.)
The only way you could turn the output of toString
back into an object would be to:
SomeClass.toString()
method so that included all relevant state for the object in the String it produced, andtoString()
method.This is probably a bad approach. Certainly, it is a lot of work to do this for non-trivial classes.
If you did something like this:
SomeClass object = ...
Class c = object.getClass();
String cn = c.toString();
then you could get the same Class
object back (i.e. the one that is in c
) as follows:
Class c2 = Class.forName(cn);
This gives you the Class
but there is no magic way to reconstruct the original instance using it. (Obviously, the name of the class does not contain the state of the object.)
If you are looking for a way to serialize / deserialize an arbitrary object without going to the effort of coding the unparse / parse methods yourself, then you shouldn't be using toString()
method at all. Here are some alternatives that you can use:
Each of these approaches has advantages and disadvantages ... which I won't go into here.
In case you are using Key based authentication, using saved Putty session seems to work great, for example to run a shell script on a remote server(In my case an ec2).Saved configuration will take care of authentication.
C:\Users> plink saved_putty_session_name path_to_shell_file/filename.sh
Please remember if you save your session with name like(user@hostname), this command would not work as it will be treated as part of the remote command.
A very portable way is to parse the output of this command.
ifconfig | awk '$0 ~ /HWaddr/ { print $5 }'
Provided ifconfig can be run as the current user (usually can) and awk is installed (it often is). This will give you the mac address of the machine.
You can use unirest, It provides easy method to post request. `
import unirest
def callback(response):
print "code:"+ str(response.code)
print "******************"
print "headers:"+ str(response.headers)
print "******************"
print "body:"+ str(response.body)
print "******************"
print "raw_body:"+ str(response.raw_body)
# consume async post request
def consumePOSTRequestASync():
params = {'test1':'param1','test2':'param2'}
# we need to pass a dummy variable which is open method
# actually unirest does not provide variable to shift between
# application-x-www-form-urlencoded and
# multipart/form-data
params['dummy'] = open('dummy.txt', 'r')
url = 'http://httpbin.org/post'
headers = {"Accept": "application/json"}
# call get service with headers and params
unirest.post(url, headers = headers,params = params, callback = callback)
# post async request multipart/form-data
consumePOSTRequestASync()
Another elegant solution to the first question may be the insert
command:
p = np.array([[1,2],[3,4]])
p = np.insert(p, 2, values=0, axis=1) # insert values before column 2
Leads to:
array([[1, 2, 0],
[3, 4, 0]])
insert
may be slower than append
but allows you to fill the whole row/column with one value easily.
As for the second question, delete
has been suggested before:
p = np.delete(p, 2, axis=1)
Which restores the original array again:
array([[1, 2],
[3, 4]])
In ES6, you could write something like:
let myVar = 'something';
let nameObject = {myVar};
let getVarNameFromObject = (nameObject) => {
for(let varName in nameObject) {
return varName;
}
}
let varName = getVarNameFromObject(nameObject);
Not really the best looking thing, but it gets the job done.
This leverages ES6's object destructuring.
More info here: https://hacks.mozilla.org/2015/05/es6-in-depth-destructuring/
What version of tomcat are you using ? What appears to me is that the tomcat version is not supporting the servlet & jsp versions you're using. You can change to something like below or look into your version of tomcat on what it supports and change the versions accordingly.
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
If I remember correctly, Bluetooth defines certain roles that devices can take. Most cell phones only support a certain number of roles. For instance, I can have a Bluetooth stereo headset that connects to my phone to receive audio, but just because my cell phone has Bluetooth does mean that it supports BEING a speaker for a different device - it doesn't advertise its capabilities of having a speaker for use by other Bluetooth devices.
I assume you want to transfer files between two iPhones? Transferring files via Bluetooth does seem like functionality that I would put in the iPhone, but I'm not Apple so I don't know for sure. In fact, yes, it seems that file transfer is not supported except in jailbroken phones:
http://gizmodo.com/5138797/iphone-bluetooth-file-transfer-coming-soon-yes
You'll probably get similar answers for Bluetooth Dial-Up Networking. I'd imagine they kept the Bluetooth commands out of the SDK for various reasons and you'll have to jailbreak your phone to get the functionality back.
A. Static Method:
Class.method = function () { /* code */ }
method()
here is a function property added to an another function (here Class).Class.method();
new Class()
) for accessing the method(). So you could call it as a static method.B. Prototype Method (Shared across all the instances):
Class.prototype.method = function () { /* code using this.values */ }
method()
here is a function property added to an another function protype (here Class.prototype).new Class()
).Class
C. Class Method (Each instance has its own copy):
function Class () {
this.method = function () { /* do something with the private members */};
}
method()
here is a method defined inside an another function (here Class).Class.method();
new Class()
) for the method() access.new Class()
).Example:
function Class() {
var str = "Constructor method"; // private variable
this.method = function () { console.log(str); };
}
Class.prototype.method = function() { console.log("Prototype method"); };
Class.method = function() { console.log("Static method"); };
new Class().method(); // Constructor method
// Bcos Constructor method() has more priority over the Prototype method()
// Bcos of the existence of the Constructor method(), the Prototype method
// will not be looked up. But you call it by explicity, if you want.
// Using instance
new Class().constructor.prototype.method(); // Prototype method
// Using class name
Class.prototype.method(); // Prototype method
// Access the static method by class name
Class.method(); // Static method
You can add a PPA that provides a relatively current version of SmartGit(as well as SmartGitHg, the predecessor of SmartGit).
To add the PPA run:
sudo add-apt-repository ppa:eugenesan/ppa
sudo apt-get update
To install smartgit
(after adding the PPA) run:
sudo apt-get install smartgit
To install smartgithg
(after adding the PPA) run:
sudo apt-get install smartgithg
This should add a menu option for you
For more information, see Eugene San PPA.
This repository contains collection of customized, updated, ported and backported packages for two last LTS releases and latest pre-LTS release
#container-of-boxes {
display: table;
width: 1158px;
}
#box-1 {
width: 578px;
}
#box-2 {
width: 386px;
}
#box-3 {
width: 194px;
}
#box-1, #box-2, #box-3 {
min-height: 210px;
padding-bottom: 20px;
display: table-cell;
height: auto;
overflow: hidden;
}
I would guess that you either haven't edited the right php.ini
or you haven't restarted PHP and/or the webserver.
Create a phpinfo.php
page in your docroot with the contents <?php phpinfo();
to make sure you are changing the correct php.ini
. In addition to the location of the php.ini
file the webserver is using, it will also state the maximum script memory allowed.
Next, I would add some stack traces to your page so you can see the chain of events that led to this. The following function will catch fatal errors and provide more information about what happened.
register_shutdown_function(function()
{
if($error = error_get_last())
{
// Should actually log this instead of printing out...
var_dump($error);
var_dump(debug_backtrace());
}
});
Personally, Nginx + PHP-FPM is what I have used for years since I left slow ol' Apache.
I solved this by adding .to_json
and some heading information
@result = HTTParty.post(@urlstring_to_post.to_str,
:body => { :subject => 'This is the screen name',
:issue_type => 'Application Problem',
:status => 'Open',
:priority => 'Normal',
:description => 'This is the description for the problem'
}.to_json,
:headers => { 'Content-Type' => 'application/json' } )
is there some other clause in the language specification that this exploits?
Yes, see 12.8 §34 and §35:
When certain criteria are met, an implementation is allowed to omit the copy/move construction of a class object [...] This elision of copy/move operations, called copy elision, is permitted [...] in a return statement in a function with a class return type, when the expression is the name of a non-volatile automatic object with the same cv-unqualified type as the function return type [...]
When the criteria for elision of a copy operation are met and the object to be copied is designated by an lvalue, overload resolution to select the constructor for the copy is first performed as if the object were designated by an rvalue.
Just wanted to add one more point that returning by value should be the default choice here because a named value in the return statement in the worst case, i.e. without elisions in C++11, C++14 and C++17 is treated as an rvalue. So for example the following function compiles with the -fno-elide-constructors
flag
std::unique_ptr<int> get_unique() {
auto ptr = std::unique_ptr<int>{new int{2}}; // <- 1
return ptr; // <- 2, moved into the to be returned unique_ptr
}
...
auto int_uptr = get_unique(); // <- 3
With the flag set on compilation there are two moves (1 and 2) happening in this function and then one move later on (3).
Yes that is a simple web service.
Web services are really nothing more than a request/ response mechanism that allows a client to remotely access/ modify data. There are formal standards for web services (SOAP, SOA etc), but your simple page is a service too.
The main downside to printing it to a page is that your service would return HTML. Preferable data formats are JSON and XML, because most client frameworks (and server frameworks) are designed around using JSON and XML.
So if you modified your service to return:
<RANDOM>some random number</RANDOM>
rather than:
<HEAD>...</HEAD>
<BODY>some random number</BODY>
then it would be more useful to most clients
The article linked to by MrMage is no longer working. So, here is what I've learned in my (very) short time coding in Objective-C:
nonatomic vs. atomic - "atomic" is the default. Always use "nonatomic". I don't know why, but the book I read said there is "rarely a reason" to use "atomic". (BTW: The book I read is the BNR "iOS Programming" book.)
readwrite vs. readonly - "readwrite" is the default. When you @synthesize, both a getter and a setter will be created for you. If you use "readonly", no setter will be created. Use it for a value you don't want to ever change after the instantiation of the object.
retain vs. copy vs. assign
If you want to know the user version in your code, then you can use using app()
helper function
app()->version();
It is defined in this file ../src/Illuminate/Foundation/Application.php
Hope it will help :)
According to the standard, you should be safe with that assumption. The C++ bool
type has two values - true
and false
with corresponding values 1 and 0.
The thing to watch about for is mixing bool
expressions and variables with BOOL
expression and variables. The latter is defined as FALSE = 0
and TRUE != FALSE
, which quite often in practice means that any value different from 0 is considered TRUE
.
A lot of modern compilers will actually issue a warning for any code that implicitly tries to cast from BOOL
to bool
if the BOOL
value is different than 0 or 1.
if [ [[ $HOST == user1 ]] -o [[ $HOST == node* ]] ];
then
echo yes
fi
doesn't work, because all of [
, [[
, and test
recognize the same nonrecursive grammar. See section CONDITIONAL EXPRESSIONS on your Bash man page.
As an aside, the SUSv3 says
The KornShell-derived conditional command (double bracket [[]]) was removed from the shell command language description in an early proposal. Objections were raised that the real problem is misuse of the test command ([), and putting it into the shell is the wrong way to fix the problem. Instead, proper documentation and a new shell reserved word (!) are sufficient.
Tests that require multiple test operations can be done at the shell level using individual invocations of the test command and shell logicals, rather than using the error-prone -o flag of test.
You'd need to write it this way, but test doesn't support it:
if [ $HOST == user1 -o $HOST == node* ];
then
echo yes
fi
test uses = for string equality, and more importantly it doesn't support pattern matching.
case
/ esac
has good support for pattern matching:
case $HOST in
user1|node*) echo yes ;;
esac
It has the added benefit that it doesn't depend on Bash, and the syntax is portable. From the Single Unix Specification, The Shell Command Language:
case word in
[(]pattern1) compound-list;;
[[(]pattern[ | pattern] ... ) compound-list;;] ...
[[(]pattern[ | pattern] ... ) compound-list]
esac
If you are using Ubuntu, Python has already been downloaded on your PC.
so, go to -> ctrl + alt + s -> search interpreter
-> go to project interpreter
than select Python 3.6
in the dropdown menu.
Edit: If there is no Python interpreter in drop-down menu, you should click the gear icon that on the right of the drop-down menu --> add
--> select an interpreter
.
(on PyCharm 2018.2.4 Community Edition)
The purpose of the softmax function is to preserve the ratio of the vectors as opposed to squashing the end-points with a sigmoid as the values saturate (i.e. tend to +/- 1 (tanh) or from 0 to 1 (logistical)). This is because it preserves more information about the rate of change at the end-points and thus is more applicable to neural nets with 1-of-N Output Encoding (i.e. if we squashed the end-points it would be harder to differentiate the 1-of-N output class because we can't tell which one is the "biggest" or "smallest" because they got squished.); also it makes the total output sum to 1, and the clear winner will be closer to 1 while other numbers that are close to each other will sum to 1/p, where p is the number of output neurons with similar values.
The purpose of subtracting the max value from the vector is that when you do e^y exponents you may get very high value that clips the float at the max value leading to a tie, which is not the case in this example. This becomes a BIG problem if you subtract the max value to make a negative number, then you have a negative exponent that rapidly shrinks the values altering the ratio, which is what occurred in poster's question and yielded the incorrect answer.
The answer supplied by Udacity is HORRIBLY inefficient. The first thing we need to do is calculate e^y_j for all vector components, KEEP THOSE VALUES, then sum them up, and divide. Where Udacity messed up is they calculate e^y_j TWICE!!! Here is the correct answer:
def softmax(y):
e_to_the_y_j = np.exp(y)
return e_to_the_y_j / np.sum(e_to_the_y_j, axis=0)
A simple way is set android:usesCleartextTraffic="true"
on you AndroidManifest.xml
android:usesCleartextTraffic="true"
Your AndroidManifest.xml
look like
<?xml version="1.0" encoding="utf-8"?>
<manifest package="com.dww.drmanar">
<application
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:usesCleartextTraffic="true"
android:theme="@style/AppTheme"
tools:targetApi="m">
<activity
android:name=".activity.SplashActivity"
android:theme="@style/FullscreenTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
I hope this will help you.
A cleaner alternative would be the following:
Due to the fact that every async function is technically a promise
You can add catches to functions when calling them with await
async function a(){
let error;
// log the error on the parent
await b().catch((err)=>console.log('b.failed'))
// change an error variable
await c().catch((err)=>{error=true; console.log(err)})
// return whatever you want
return error ? d() : null;
}
a().catch(()=>console.log('main program failed'))
No need for try catch, as all promises errors are handled, and you have no code errors, you can omit that in the parent!!
Lets say you are working with mongodb, if there is an error you might prefer to handle it in the function calling it than making wrappers, or using try catches.
Of course, if you want to make sure it's in there otherwise fail then this works:
thisTag = _tags[key];
NOTE: This will fail if the key,value pair does not exists but sometimes that is exactly what you want. This way you can catch it and do something about the error. I would only do this if I am certain that the key,value pair is or should be in the dictionary and if not I want it to know about it via the throw.
const int * ptr;
means that the pointed data is constant and immutable but the pointer is not.
int * const ptr;
means that the pointer is constant and immutable but the pointed data is not.
In my case eclipse is not showing parent class function on $this, so I perform below mention points and it starts works:-
I go to my /var/www/ folder and check for .metadata folder (Here check the .log file and it shows) Resource is out of sync with the file system: 1. Go to Eclipse --> Project --> Clean 2. Windows -- preferences --> General --> Workspace --> And set it to "Refresh Automatically"
After that boom - things gets start working :)
If you want to load variables from other files too then ado this :- Eclipse-->Windows-->Preferences-->Php-->Editor-->Content Assist --> and check "show variable from other files"
Then it will show element , variables and other functions also.
Right from the docs:
-fpermissive
Downgrade some diagnostics about nonconformant code from errors to warnings. Thus, using-fpermissive
will allow some nonconforming code to compile.
Bottom line: don't use it unless you know what you are doing!
you can also skip creating dictionary altogether. i used below approach to same problem .
mappedItems: {};
items.forEach(item => {
if (mappedItems[item.key]) {
mappedItems[item.key].push({productId : item.productId , price : item.price , discount : item.discount});
} else {
mappedItems[item.key] = [];
mappedItems[item.key].push({productId : item.productId , price : item.price , discount : item.discount}));
}
});
In Angular 4, you can use environment class to keep all your globals.
You have environment.ts and environment.prod.ts by default.
For example
export const environment = {
production: false,
apiUrl: 'http://localhost:8000/api/'
};
And then on your service:
import { environment } from '../../environments/environment';
...
environment.apiUrl;
"%.2f"
does not return a clean float. It returns a string representing this float with two decimals.
my_list = [0.30000000000000004, 0.5, 0.20000000000000001]
my_formatted_list = [ '%.2f' % elem for elem in my_list ]
returns:
['0.30', '0.50', '0.20']
Also, don't call your variable list
. This is a reserved word for list creation. Use some other name, for example my_list
.
If you want to obtain [0.30, 0.5, 0.20]
(or at least the floats that are the closest possible), you can try this:
my_rounded_list = [ round(elem, 2) for elem in my_list ]
returns:
[0.29999999999999999, 0.5, 0.20000000000000001]
If you are using Spring, there is a helper to handle URIs. Here is the solution:
List<String> pathSegments = UriComponentsBuilder.fromUriString(url).build().getPathSegments();
String filename = pathSegments.get(pathSegments.size()-1);
If you're using getValue()
you're doing something imperative in declarative paradigm. It's there as an escape hatch, but 99.9% of the time you should NOT use getValue()
. There are a few interesting things that getValue()
will do: It will throw an error if the subject has been unsubscribed, it will prevent you from getting a value if the subject is dead because it's errored, etc. But, again, it's there as an escape hatch for rare circumstances.
There are several ways of getting the latest value from a Subject or Observable in a "Rx-y" way:
BehaviorSubject
: But actually subscribing to it. When you first subscribe to BehaviorSubject
it will synchronously send the previous value it received or was initialized with.ReplaySubject(N)
: This will cache N
values and replay them to new subscribers.A.withLatestFrom(B)
: Use this operator to get the most recent value from observable B
when observable A
emits. Will give you both values in an array [a, b]
.A.combineLatest(B)
: Use this operator to get the most recent values from A
and B
every time either A
or B
emits. Will give you both values in an array.shareReplay()
: Makes an Observable multicast through a ReplaySubject
, but allows you to retry the observable on error. (Basically it gives you that promise-y caching behavior).publishReplay()
, publishBehavior(initialValue)
, multicast(subject: BehaviorSubject | ReplaySubject)
, etc: Other operators that leverage BehaviorSubject
and ReplaySubject
. Different flavors of the same thing, they basically multicast the source observable by funneling all notifications through a subject. You need to call connect()
to subscribe to the source with the subject.It is so simple to do it
if you want to use it as host and want to resolve it
If you are using ambassador to any other API gateway for service located in another namespace it's always suggested to use :
Use : <service name>
Use : <service.name>.<namespace name>
Not : <service.name>.<namespace name>.svc.cluster.local
it will be like : servicename.namespacename.svc.cluster.local
this will send request to a particular service inside the namespace you have mention.
example:
kind: Service
apiVersion: v1
metadata:
name: service
spec:
type: ExternalName
externalName: <servicename>.<namespace>.svc.cluster.local
Here replace the <servicename>
and <namespace>
with the appropriate value.
In Kubernetes, namespaces are used to create virtual environment but all are connect with each other.
If look into native Math
object in JavaScript, you get the whole bunch of functions to work on numbers and values, etc...
Basically what you want to do is quite simple and native in JavaScript...
Imagine you have the number below:
const myValue = 56.4534931;
and now if you want to round it down to the nearest number, just simply do:
const rounded = Math.floor(myValue);
and you get:
56
If you want to round it up to the nearest number, just do:
const roundedUp = Math.ceil(myValue);
and you get:
57
Also Math.round
just round it to higher or lower number depends on which one is closer to the flot number.
Also you can use of ~~
behind the float number, that will convert a float to a whole number.
You can use it like ~~myValue
...
What I did to beable to use startssl certificates was quite easy. (on my rooted phone)
I copied /system/etc/security/cacerts.bks to my sdcard
Downloaded http://www.startssl.com/certs/ca.crt and http://www.startssl.com/certs/sub.class1.server.ca.crt
Went to portecle.sourceforge.net and ran portecle directly from the webpage.
Opened my cacerts.bks file from my sdcard (entered nothing when asked for a password)
Choose import in portacle and opened sub.class1.server.ca.crt, im my case it allready had the ca.crt but maybe you need to install that too.
Saved the keystore and copied it baxck to /system/etc/security/cacerts.bks (I made a backup of that file first just in case)
Rebooted my phone and now I can vist my site thats using a startssl certificate without errors.
Keep the previous path, don't overwrite it:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/your/custom/path/
You can add it to your ~/.bashrc:
echo 'export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/your/custom/path/' >> ~/.bashrc
There are 2 major differences.
Technical, there are 3 major differences:
First and foremost, Community doesn't have TFS support.
You'll just have to use git (arguable whether this constitutes a disadvantage or whether this actually is a good thing).
Note: This is what MS wrote. Actually, you can check-in&out with TFS as normal, if you have a TFS server in the network. You just cannot use Visual Studio as TFS SERVER.
Second, VS Community is severely limited in its testing capability.
Only unit tests. No Performance tests, no load tests, no performance profiling.
Third, VS Community's ability to create Virtual Environments has been severely cut.
On the other hand, syntax highlighting, IntelliSense, Step-Through debugging, GoTo-Definition, Git-Integration and Build/Publish are really all the features I need, and I guess that applies to a lot of developers.
For all other things, there are tools that do the same job faster, better and cheaper.
If you, like me, anyway use git, do unit testing with NUnit, and use Java-Tools to do Load-Testing on Linux plus TeamCity for CI, VS Community is more than sufficient, technically speaking.
Licensing:
A) If you're an individual developer (no enterprise, no organization), no difference (AFAIK), you can use CommunityEdition like you'd use the paid edition (as long as you don't do subcontracting)
B) You can use CommunityEdition freely for OpenSource (OSI) projects
C) If you're an educational insitution, you can use CommunityEdition freely (for education/classroom use)
D) If you're an enterprise with 250 PCs or users or more than one million US dollars in revenue (including subsidiaries), you are NOT ALLOWED to use CommunityEdition.
E) If you're not an enterprise as defined above, and don't do OSI or education, but are an "enterprise"/organization, with 5 or less concurrent (VS) developers, you can use VS Community freely (but only if you're the owner of the software and sell it, not if you're a subcontractor creating software for a larger enterprise, software which in the end the enterprise will own), otherwise you need a paid edition.
The above does not consitute legal advise.
See also:
https://softwareengineering.stackexchange.com/questions/262916/understanding-visual-studio-community-edition-license
this.setState({ abc.xyz: 'new value' });
syntax is not allowed.
You have to pass the whole object.
this.setState({abc: {xyz: 'new value'}});
If you have other variables in abc
var abc = this.state.abc;
abc.xyz = 'new value';
this.setState({abc: abc});
You can have ordinary variables, if they don't rely on this.props and this.state
.
You can use the following list as quick reference:
/ = Root directory
. = This location
.. = Up a directory
./ = Current directory
../ = Parent of current directory
../../ = Two directories backwards
Useful article: https://css-tricks.com/quick-reminder-about-file-paths/
=RIGHT(A1)
is quite sufficient (where the string is contained in A1).
Similar in nature to LEFT, Excel's RIGHT function extracts a substring from a string starting from the right-most character:
SYNTAX
RIGHT( text, [number_of_characters] )
Parameters or Arguments
text
The string that you wish to extract from.
number_of_characters
Optional. It indicates the number of characters that you wish to extract starting from the right-most character. If this parameter is omitted, only 1 character is returned.
Applies To
Excel 2016, Excel 2013, Excel 2011 for Mac, Excel 2010, Excel 2007, Excel 2003, Excel XP, Excel 2000
Since number_of_characters is optional and defaults to 1
it is not required in this case.
However, there have been many issues with trailing spaces and if this is a risk for the last visible character (in general):
=RIGHT(TRIM(A1))
might be preferred.
You can using regex to parse string to detail time then create date or any return format like :
//example : let dateString = "2018-08-17 01:02:03.4"
function strToDate(dateString){
let reggie = /(\d{4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2}).(\d{1})/
, [,year, month, day, hours, minutes, seconds, miliseconds] = reggie.exec(dateString)
, dateObject = new Date(year, month-1, day, hours, minutes, seconds, miliseconds);
return dateObject;
}
alert(strToDate(dateString));
Thank you Mr.Snake, Found this helpfull for another trick i was looking for :) (Not enough rep to comment)
Shorthand assignment of nullable types. Like this:
var someDate = !Convert.IsDBNull(dataRow["SomeDate"])
? Convert.ToDateTime(dataRow["SomeDate"])
: (DateTime?) null;
If you are using node.js, you can use unique-random-array. It simply picks something random from an array.
In a programming context, directives provide guidance to the compiler to alter how it would otherwise process input, i.e change some behaviour.
“Directives allow you to attach behavior to elements in the DOM.”
directives are split into the 3 categories:
Yes, in Angular 2, Components are a type of Directive. According to the Doc,
“Angular components are a subset of directives. Unlike directives, components always have a template and only one component can be instantiated per an element in a template.”
Angular 2 Components are an implementation of the Web Component concept. Web Components consists of several separate technologies. You can think of Web Components as reusable user interface widgets that are created using open Web technology.
Use Distinct()
but keep in mind that it uses the default equality comparer to compare values, so if you want anything beyond that you need to implement your own comparer.
Please see http://msdn.microsoft.com/en-us/library/bb348436.aspx for an example.
After typing "prop" + Tab + Tab as suggested by Amra,
you can immediately type the property's type (which will replace the default int
), type another tab and type the property name (which will replace the default MyProperty). Finish by pressing Enter.
So, as was mentioned in a couple comments containing the data in an array is simpler but the solution does not scale well in terms of efficiency as the data set size increases. You really should only use an iterator when you want to access a random object in the array, otherwise, generators are the way to go. Below I have prototyped a reader function which reads each json object individually and returns a generator.
The basic idea is to signal the reader to split on the carriage character "\n"
(or "\r\n"
for Windows). Python can do this with the file.readline()
function.
import json
def json_reader(filename):
with open(filename) as f:
for line in f:
yield json.loads(line)
However, this method only really works when the file is written as you have it -- with each object separated by a newline character. Below I wrote an example of a writer that separates an array of json objects and saves each one on a new line.
def json_writer(file, json_objects):
with open(file, "w") as f:
for jsonobj in json_objects:
jsonstr = json.dumps(jsonobj)
f.write(jsonstr + "\n")
You could also do the same operation with file.writelines()
and a list comprehension:
...
json_strs = [json.dumps(j) + "\n" for j in json_objects]
f.writelines(json_strs)
...
And if you wanted to append the data instead of writing a new file just change open(file, "w")
to open(file, "a")
.
In the end I find this helps a great deal not only with readability when I try and open json files in a text editor but also in terms of using memory more efficiently.
On that note if you change your mind at some point and you want a list out of the reader, Python allows you to put a generator function inside of a list and populate the list automatically. In other words, just write
lst = list(json_reader(file))
It's better to have a proper JSON format instead of directly using the one converted from XML.
[
{
"number": "2013-W45",
"days": [
{
"dow": "1",
"templateDay": "Monday",
"jobs": [
{
"name": "Wakeup",
"jobs": [
{
"name": "prepare breakfast",
}
]
},
{
"name": "work 9-5",
}
]
},
{
"dow": "2",
"templateDay": "Tuesday",
"jobs": [
{
"name": "Wakeup",
"jobs": [
{
"name": "prepare breakfast",
}
]
}
]
}
]
}
]
This will make things much easier and easy to loop through.
Now you can write the loop as -
<div ng-repeat="week in myData">
<div ng-repeat="day in week.days">
{{day.dow}} - {{day.templateDay}}
<b>Jobs:</b><br/>
<ul>
<li ng-repeat="job in day.jobs">
{{job.name}}
</li>
</ul>
</div>
</div>
I don't believe AJAX can handle file uploads but this can be achieved with libraries that leverage flash. Another advantage of the flash implementation is the ability to do multiple files at once (like gmail).
SWFUpload is a good start : http://www.swfupload.org/documentation
jQuery and some of the other libraries have plugins that leverage SWFUpload. On my last project we used SWFUpload and Java without a problem.
Also helpful and worth looking into is Apache's FileUpload : http://commons.apache.org/fileupload/index.html
Or this
<footer class="navbar navbar-default navbar-fixed-bottom">
<p class="text-muted" align="center">This is a footer</p>
</footer>
df <- data.frame(x=rnorm(10), y=rnorm(10))
rownames(df) <- letters[1:10]
df[c('a','b'),]
Here is another thing to try, if like me you have tried all of the other answers and have had no luck.
In my case (Android 4.3) I went into the USB settings under the notifications and changed from MTP mode (Media device) to PTP (camera) and as soon as it switched, the device showed up in the ADT device list.
#include <stdio.h>
#include <math.h>
/*
To define a new type name with typedef, follow these steps:
1. Write the statement as if a variable of the desired type were being declared.
2. Where the name of the declared variable would normally appear, substitute the new type name.
3. In front of everything, place the keyword typedef.
*/
// typedef a primitive data type
typedef double distance;
// typedef struct
typedef struct{
int x;
int y;
} point;
//typedef an array
typedef point points[100];
points ps = {0}; // ps is an array of 100 point
// typedef a function
typedef distance (*distanceFun_p)(point,point) ; // TYPE_DEF distanceFun_p TO BE int (*distanceFun_p)(point,point)
// prototype a function
distance findDistance(point, point);
int main(int argc, char const *argv[])
{
// delcare a function pointer
distanceFun_p func_p;
// initialize the function pointer with a function address
func_p = findDistance;
// initialize two point variables
point p1 = {0,0} , p2 = {1,1};
// call the function through the pointer
distance d = func_p(p1,p2);
printf("the distance is %f\n", d );
return 0;
}
distance findDistance(point p1, point p2)
{
distance xdiff = p1.x - p2.x;
distance ydiff = p1.y - p2.y;
return sqrt( (xdiff * xdiff) + (ydiff * ydiff) );
}
You can create a function template like this:
template<int R, int C>
void myFunction(double (&myArray)[R][C])
{
myArray[x][y] = 5;
etc...
}
Then you have both dimension sizes via R and C. A different function will be created for each array size, so if your function is large and you call it with a variety of different array sizes, this may be costly. You could use it as a wrapper over a function like this though:
void myFunction(double * arr, int R, int C)
{
arr[x * C + y] = 5;
etc...
}
It treats the array as one dimensional, and uses arithmetic to figure out the offsets of the indexes. In this case, you would define the template like this:
template<int C, int R>
void myFunction(double (&myArray)[R][C])
{
myFunction(*myArray, R, C);
}
var text = '<p>name</p><p><span style="font-size:xx-small;">ajde</span></p><p><em>da</em></p>';
var decoded = $('<textarea/>').html(text).text();
alert(decoded);
This sets the innerHTML of a new element (not appended to the page), causing jQuery to decode it into HTML, which is then pulled back out with .text().
It's easy, you should set server http response header first. The problem is not with your front-end javascript code. You need to return this header:
Access-Control-Allow-Origin:*
or
Access-Control-Allow-Origin:your domain
In Apache config files, the code is like this:
Header set Access-Control-Allow-Origin "*"
In nodejs,the code is like this:
res.setHeader('Access-Control-Allow-Origin','*');
Instead of "w"
use "a"
(append) mode with open
function:
with open("games.txt", "a") as text_file:
I think there is MID() and maybe LEFT() and RIGHT() in Access.
EDIT: Simply "ls -m" If you want your delimiter to be a comma
Ah, the power and simplicity !
ls -1 | tr '\n' ','
Change the comma "," to whatever you want. Note that this includes a "trailing comma"
To do this I have an easy solution that works for me.
However, you need to exercise caution if your database has triggers, procedures or similar - more that just data and tables.
With <button>
, you can use img tags, etc. where text is
<button type='submit'> text -- can be img etc. </button>
with <input>
type, you are limited to text
The answer given by Fabian Perez worked for me, with a little change
Edited html is here:
<div ng-repeat="file in files" ng-class="!$last ? 'other' : 'class-for-last'">
{{file.name}}
</div>
Because they are two different kinds of controls...
You see, your web browser doesn't know about server side programming. it only knows about it's own DOM and the event models that it uses... And for click events of objects rendered to it. You should examine the final markup that is actually sent to the browser from ASP.Net to see the differences your self.
<asp:CheckBox runat="server" OnClick="alert(this.checked);" />
renders to
<input type="check" OnClick="alert(this.checked);" />
and
<asp:CheckBox runat="server" OnClientClick="alert(this.checked);" />
renders to
<input type="check" OnClientClick="alert(this.checked);" />
Now, as near as i can recall, there are no browsers anywhere that support the "OnClientClick" event in their DOM...
When in doubt, always view the source of the output as it is sent to the browser... there's a whole world of debug information that you can see.
Based on solution You've already found How to apply CSS to iframe?:
var cssLink = document.createElement("link")
cssLink.href = "file://path/to/style.css";
cssLink .rel = "stylesheet";
cssLink .type = "text/css";
frames['iframe'].document.body.appendChild(cssLink);
or more jqueryish (from Append a stylesheet to an iframe with jQuery):
var $head = $("iframe").contents().find("head");
$head.append($("<link/>",
{ rel: "stylesheet", href: "file://path/to/style.css", type: "text/css" }));
as for security issues: Disabling same-origin policy in Safari
It sounds like what you're asking about involves serializing the data structure of a Django model instance for interoperability. The other posters are correct: if you wanted the serialized form to be used with a python application that can query the database via Django's api, then you would wan to serialize a queryset with one object. If, on the other hand, what you need is a way to re-inflate the model instance somewhere else without touching the database or without using Django, then you have a little bit of work to do.
Here's what I do:
First, I use demjson
for the conversion. It happened to be what I found first, but it might not be the best. My implementation depends on one of its features, but there should be similar ways with other converters.
Second, implement a json_equivalent
method on all models that you might need serialized. This is a magic method for demjson
, but it's probably something you're going to want to think about no matter what implementation you choose. The idea is that you return an object that is directly convertible to json
(i.e. an array or dictionary). If you really want to do this automatically:
def json_equivalent(self):
dictionary = {}
for field in self._meta.get_all_field_names()
dictionary[field] = self.__getattribute__(field)
return dictionary
This will not be helpful to you unless you have a completely flat data structure (no ForeignKeys
, only numbers and strings in the database, etc.). Otherwise, you should seriously think about the right way to implement this method.
Third, call demjson.JSON.encode(instance)
and you have what you want.
In addition to @Bruno's answer, you need to supply the -name
for alias, otherwise Tomcat will throw Alias name tomcat does not identify a key entry
error
Sample Command:
openssl pkcs12 -export -in localhost.crt -inkey localhost.key -out localhost.p12 -name localhost