A lot of correct answers been provided so far and I see lot of upvotes. However, the mentioned ways will work but not really optimized or not really readable. I recently came across the solution which every developer will like.
String nameWithProperSpacing = StringUtils.normalizeSpace( stringWithLotOfSpaces );
You are done. This is readable solution.
The push
command has a -n
/--dry-run
option which will compute what needs to be pushed but not actually do it. Does that work for you?
According to Github API two empty lines are a new paragraph (same as here in stackoverflow)
You can test it with http://prose.io
If you have multiple projects in your git repo, .idea/workspace.xml
will not match to any files.
Instead, do the following:
$ git rm -f **/.idea/workspace.xml
And make your .gitignore look something like this:
# User-specific stuff:
**/.idea/workspace.xml
**/.idea/tasks.xml
**/.idea/dictionaries
**/.idea/vcs.xml
**/.idea/jsLibraryMappings.xml
# Sensitive or high-churn files:
**/.idea/dataSources.ids
**/.idea/dataSources.xml
**/.idea/dataSources.local.xml
**/.idea/sqlDataSources.xml
**/.idea/dynamic.xml
**/.idea/uiDesigner.xml
## File-based project format:
*.iws
# IntelliJ
/out/
The main difference between statement level trigger is below :
statement level trigger : based on name it works if any statement is executed. Does not depends on how many rows or any rows effected.It executes only once. Exp : if you want to update salary of every employee from department HR and at the end you want to know how many rows get effected means how many got salary increased then use statement level trigger. please note that trigger will execute even if zero rows get updated because it is statement level trigger is called if any statement has been executed. No matters if it is affecting any rows or not.
Row level trigger : executes each time when an row is affected. if zero rows affected.no row level trigger will execute.suppose if u want to delete one employye from emp table whose department is HR and u want as soon as employee deleted from emp table the count in dept table from HR section should be reduce by 1.then you should opt for row level trigger.
Simple solution:
function betweenDates($cmpDate,$startDate,$endDate){
return (date($cmpDate) > date($startDate)) && (date($cmpDate) < date($endDate));
}
var result = projects.Where(p => filtedTags.All(t => p.Tags.Contains(t)));
Just change your line of code to
<a href="~/Required/[email protected]">Edit</a>
from where you are calling this function that will pass corect id
In PHP, you can just put an extra $
in front of a variable to make it a dynamic variable :
$$variableName = $value;
While I wouldn't recommend it, you could even chain this behavior :
$$$$$$$$DoNotTryThisAtHomeKids = $value;
You can but are not forced to put $variableName
between {}
:
${$variableName} = $value;
Using {}
is only mandatory when the name of your variable is itself a composition of multiple values, like this :
${$variableNamePart1 . $variableNamePart2} = $value;
It is nevertheless recommended to always use {}
, because it's more readable.
Another reason to always use {}
, is that PHP5 and PHP7 have a slightly different way of dealing with dynamic variables, which results in a different outcome in some cases.
In PHP7, dynamic variables, properties, and methods will now be evaluated strictly in left-to-right order, as opposed to the mix of special cases in PHP5. The examples below show how the order of evaluation has changed.
$$foo['bar']['baz']
${$foo['bar']['baz']}
${$foo}['bar']['baz']
$foo->$bar['baz']
$foo->{$bar['baz']}
$foo->{$bar}['baz']
$foo->$bar['baz']()
$foo->{$bar['baz']}()
$foo->{$bar}['baz']()
Foo::$bar['baz']()
Foo::{$bar['baz']}()
Foo::{$bar}['baz']()
As pointed out in answers above
my_string.strip()
will remove all the leading and trailing whitespace characters such as \n
, \r
, \t
, \f
, space
.
For more flexibility use the following
my_string.lstrip()
my_string.rstrip()
my_string.strip('\n')
or my_string.lstrip('\n\r')
or my_string.rstrip('\n\t')
and so on.More details are available in the docs.
Format MySQL datetime with PHP
$date = "'".date('Y-m-d H:i:s', strtotime(str_replace('-', '/', $_POST['date'])))."'";
Use gradle dependencies to get the Gson in your project. Your application build.gradle should look like this-
dependencies {
implementation 'com.google.code.gson:gson:2.8.2'
}
<div class="liveChatContainer online">
<div class="actions" id="change">
<span class="item title">Need help?</span>
<a href="/test" onclick="demo()"><i class="fa fa-smile-o"></i>Chat</a>
<a href="/test"><i class="fa fa-smile-o"></i>Call</a>
<a href="/test"><i class="fa fa-smile-o"></i>Email</a>
</div>
<a href="#" class="liveChatLabel">Contact</a>
</div>
<style>
.actions_one{
background-color: red;
}
</style>
<script>
function demo(){
document.getElementById("change").setAttribute("class","actions_one");}
</script>
As this very useful tutorial says:
var age = 0;
// bad
var hasAge = new Boolean(age);
// good
var hasAge = Boolean(age);
// good
var hasAge = !!age;
There are plenty available. Try using Modal windows of Jquery or DHTML would do good. Put the content in your div or Change your content in div dynamically and show it to the user. It won't be a popup but a modal window.
Jquery's Thickbox would clear your problem.
Seaborn box plot returns a matplotlib axes instance. Unlike pyplot itself, which has a method plt.title()
, the corresponding argument for an axes is ax.set_title()
. Therefore you need to call
sns.boxplot('Day', 'Count', data= gg).set_title('lalala')
A complete example would be:
import seaborn as sns
import matplotlib.pyplot as plt
tips = sns.load_dataset("tips")
sns.boxplot(x=tips["total_bill"]).set_title("LaLaLa")
plt.show()
Of course you could also use the returned axes instance to make it more readable:
ax = sns.boxplot('Day', 'Count', data= gg)
ax.set_title('lalala')
ax.set_ylabel('lololo')
Swift 4 answer based on helpful answer from @mbm29414.
Unfortunately, it requires the use of a XIB file. There doesn't appear to be an alternative.
The key parts are using a sizing cell (created only once) and registering the XIB when initializing the collection view.
Then you size each cell dynamically within the sizeForItemAt
function.
// UICollectionView Vars and Constants
let CellXIBName = YouViewCell.XIBName
let CellReuseID = YouViewCell.ReuseID
var sizingCell = YouViewCell()
fileprivate func initCollectionView() {
// Connect to view controller
collectionView.dataSource = self
collectionView.delegate = self
// Register XIB
collectionView.register(UINib(nibName: CellXIBName, bundle: nil), forCellWithReuseIdentifier: CellReuseID)
// Create sizing cell for dynamically sizing cells
sizingCell = Bundle.main.loadNibNamed(CellXIBName, owner: self, options: nil)?.first as! YourViewCell
// Set scroll direction
let layout = UICollectionViewFlowLayout()
layout.scrollDirection = .vertical
collectionView.collectionViewLayout = layout
// Set properties
collectionView.alwaysBounceVertical = true
collectionView.alwaysBounceHorizontal = false
// Set top/bottom padding
collectionView.contentInset = UIEdgeInsets(top: collectionViewTopPadding, left: collectionViewSidePadding, bottom: collectionViewBottomPadding, right: collectionViewSidePadding)
// Hide scrollers
collectionView.showsVerticalScrollIndicator = false
collectionView.showsHorizontalScrollIndicator = false
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
// Get cell data and render post
let data = YourData[indexPath.row]
sizingCell.renderCell(data: data)
// Get cell size
sizingCell.setNeedsLayout()
sizingCell.layoutIfNeeded()
let cellSize = sizingCell.systemLayoutSizeFitting(UIView.layoutFittingCompressedSize)
// Return cell size
return cellSize
}
Use a Profiler
Your approach will work nevertheless, but if you are looking for more sophisticated approaches. I'd suggest using a C# Profiler.
The advantages they have is:
There are many available open-source as well.
open looks in the current working directory, which in your case is ~
, since you are calling your script from the ~
directory.
You can fix the problem by either
cd
ing to the directory containing data.csv
before executing the script, or
by using the full path to data.csv
in your script, or
open
and os.listdir
) may be affected by this.Yes, you can use File.renameTo(). But remember to have the correct path while renaming it to a new file.
import java.util.Arrays;
import java.util.List;
public class FileRenameUtility {
public static void main(String[] a) {
System.out.println("FileRenameUtility");
FileRenameUtility renameUtility = new FileRenameUtility();
renameUtility.fileRename("c:/Temp");
}
private void fileRename(String folder){
File file = new File(folder);
System.out.println("Reading this "+file.toString());
if(file.isDirectory()){
File[] files = file.listFiles();
List<File> filelist = Arrays.asList(files);
filelist.forEach(f->{
if(!f.isDirectory() && f.getName().startsWith("Old")){
System.out.println(f.getAbsolutePath());
String newName = f.getAbsolutePath().replace("Old","New");
boolean isRenamed = f.renameTo(new File(newName));
if(isRenamed)
System.out.println(String.format("Renamed this file %s to %s",f.getName(),newName));
else
System.out.println(String.format("%s file is not renamed to %s",f.getName(),newName));
}
});
}
}
}
let ar = ['a', 'b', 'c', 'd'];
function change( old_array, old_index , new_index ){
return old_array.map(( item , index, array )=>{
if( index === old_index ) return array[ new_index ];
else if( index === new_index ) return array[ old_index ];
else return item;
});
}
let result = change( ar, 0, 1 );
console.log( result );
result:
["b", "a", "c", "d"]
I needed this functionality for multiple read more area's on one page implementing this into a Wordpress shortcode I ran into the same problem.
Design technically all of the read more span's on the page have a fixed height. And I wanted to be able to expand them separately to an auto height with a toggle. First click: 'expand to full height of text span', second click: 'collapse back to default height of 70px'
Html
<span class="read-more" data-base="70" data-height="null">
/* Lots of text determining the height of this span */
</span>
<button data-target='read-more'>Read more</button>
CSS
span.read-more {
position:relative;
display:block;
overflow:hidden;
}
So above this looks very simple the data-base
attribute I need to set the fixed height needed. The data-height
attribute I used to store the actual (dynamic) height of the element.
The jQuery part
jQuery(document).ready(function($){
$.fn.clickToggle = function(func1, func2) {
var funcs = [func1, func2];
this.data('toggleclicked', 0);
this.click(function() {
var data = $(this).data();
var tc = data.toggleclicked;
$.proxy(funcs[tc], this)();
data.toggleclicked = (tc + 1) % 2;
});
return this;
};
function setAttr_height(key) {
$(key).each(function(){
var setNormalHeight = $(this).height();
$(this).attr('data-height', setNormalHeight);
$(this).css('height', $(this).attr('data-base') + 'px' );
});
}
setAttr_height('.read-more');
$('[data-target]').clickToggle(function(){
$(this).prev().animate({height: $(this).prev().attr('data-height')}, 200);
}, function(){
$(this).prev().animate({height: $(this).prev().attr('data-base')}, 200);
});
});
First I've used a clickToggle function for my first and second click. The second function is more important: setAttr_height()
All of the .read-more
elements have their actual heights set on page load in the base-height
attribute. After that the base height is set through the jquery css function.
With both of our attributes set we now can toggle between them in a smooth way. Only chang the data-base
to your desired (fixed)height and switch the .read-more class for your own ID
You can all see it working in a fiddle FIDDLE
No jQuery UI needed
I followed this guide to create the debug keystore.
The command is:
keytool -genkeypair -alias androiddebugkey -keypass android -keystore debug.keystore -storepass android -dname "CN=Android Debug,O=Android,C=US" -validity 9999
This solution needs external dependency, but seems prettier than another.
Faker::Lorem.characters(10) # => "ang9cbhoa8"
Here is the solution.
The HTML:
<div class="rating">
<span>?</span><span>?</span><span>?</span><span>?</span><span>?</span>
</div>
The CSS:
.rating {
unicode-bidi: bidi-override;
direction: rtl;
}
.rating > span {
display: inline-block;
position: relative;
width: 1.1em;
}
.rating > span:hover:before,
.rating > span:hover ~ span:before {
content: "\2605";
position: absolute;
}
Hope this helps.
This is an Enum containing the colour codes:
class TerminalColour:
"""
Terminal colour formatting codes
"""
# https://stackoverflow.com/questions/287871/print-in-terminal-with-colors
MAGENTA = '\033[95m'
BLUE = '\033[94m'
GREEN = '\033[92m'
YELLOW = '\033[93m'
RED = '\033[91m'
GREY = '\033[0m' # normal
WHITE = '\033[1m' # bright white
UNDERLINE = '\033[4m'
This may be applied to the names of each log level. Be aware that this is a monstrous hack.
logging.addLevelName(logging.INFO, "{}{}{}".format(TerminalColour.WHITE, logging.getLevelName(logging.INFO), TerminalColour.GREY))
logging.addLevelName(logging.WARNING, "{}{}{}".format(TerminalColour.YELLOW, logging.getLevelName(logging.WARNING), TerminalColour.GREY))
logging.addLevelName(logging.ERROR, "{}{}{}".format(TerminalColour.RED, logging.getLevelName(logging.ERROR), TerminalColour.GREY))
logging.addLevelName(logging.CRITICAL, "{}{}{}".format(TerminalColour.MAGENTA, logging.getLevelName(logging.CRITICAL), .GREY))
Note that your log formatter must include the name of the log level
%(levelname)
for example:
LOGGING = {
...
'verbose': {
'format': '%(asctime)s %(levelname)s %(name)s:%(lineno)s %(module)s %(process)d %(thread)d %(message)s'
},
'simple': {
'format': '[%(asctime)s] %(levelname)s %(name)s %(message)s'
},
Any other solution/library is in the end going to use reflection to introspect the type...
1.Download the Gradle form gradle distribution
2.Extract file to some location
3.Open Android Studio : File > Settings > Gradle > Use local gradle distribution navigate the path where you have extracted the gradle.
4.click apply and ok
Done
<?php
if(empty($myarray))
echo"true";
else
echo "false";
?>
OK, in many cases you even don't need to do anything as by default div has height
and width
as auto, but if it's not your case, applying inline-block
display gonna work for you... look at the code I create for you and it's do what you looking for:
div {_x000D_
display: inline-block;_x000D_
}
_x000D_
<div>_x000D_
<table>_x000D_
<tr>_x000D_
<td>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi ultrices feugiat massa sed laoreet. Maecenas et magna egestas, facilisis purus quis, vestibulum nibh.</td>_x000D_
<td>Nunc auctor aliquam est ac viverra. Sed enim nisi, feugiat sed accumsan eu, convallis eget felis. Pellentesque consequat eu leo nec pharetra. Aenean interdum enim dapibus diam.</td>_x000D_
<td>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi ultrices feugiat massa sed laoreet. Maecenas et magna egestas, facilisis purus quis, vestibulum nibh.</td>_x000D_
</tr>_x000D_
</table>_x000D_
</div>
_x000D_
For the more performance aware devs
uint wrap(int k, int n) ((uint)k)%n
A small performance comparison
Modulo: 00:00:07.2661827 ((n%x)+x)%x)
Cast: 00:00:03.2202334 ((uint)k)%n
If: 00:00:13.5378989 ((k %= n) < 0) ? k+n : k
As for performance cost of cast to uint have a look here
Only thing you have to do is
<ul style='left:-100%'>
of the menu which you want to display on RIGHT side.
Update:
Swift 5.1, Xcode 11
Tested on Real Device iOS 13.0 (Guarantee to work)
import StoreKit
func rateApp() {
if #available(iOS 10.3, *) {
SKStoreReviewController.requestReview()
} else {
let appID = "Your App ID on App Store"
let urlStr = "https://itunes.apple.com/app/id\(appID)" // (Option 1) Open App Page
let urlStr = "https://itunes.apple.com/app/id\(appID)?action=write-review" // (Option 2) Open App Review Page
guard let url = URL(string: urlStr), UIApplication.shared.canOpenURL(url) else { return }
if #available(iOS 10.0, *) {
UIApplication.shared.open(url, options: [:], completionHandler: nil)
} else {
UIApplication.shared.openURL(url) // openURL(_:) is deprecated from iOS 10.
}
}
}
If you develop under Eclipse, you can in the POM Editor (advanced tabs enabled) dependency graph look for the dependency you want to exclude of your project and then:
right click on it -> "Exclude Maven Artifact ..." and Eclipse will make the exclusion for you without the need to find out on which dependency the lib is linked.
In Maven you can configure the surefire plugin
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.9</version>
<configuration>
<argLine>-Xmx256M</argLine>
</configuration>
</plugin>
If you use Maven for builds then this configuration will be carried in the source tree and applied when tests are carried out. See the Maven Surefire Plugin documentation.
both floated divs need to have a width!
set 50% of width to both and it works.
BTW, the outer div, with its margin: 0 auto
will only center itself not the ones inside.
If the sent_at field is not there when its not set then:
db.emails.count({sent_at: {$exists: false}})
If its there and null, or not there at all:
db.emails.count({sent_at: null})
You can do it if you wrap your text into a span like:
a {_x000D_
color: red;_x000D_
text-decoration: underline;_x000D_
}_x000D_
span {_x000D_
color: blue;_x000D_
text-decoration: none;_x000D_
}
_x000D_
<a href="#">_x000D_
<span>Text</span>_x000D_
</a>
_x000D_
Since WooCommerce 2.2
you are able to simply use the wc_get_product
Method. As an argument you can pass the ID
or simply leave it empty if you're already in the loop.
wc_get_product()->get_id();
OR with 2 lines
$product = wc_get_product();
$id = $product->get_id();
Same solution as given by nickf, but with array input names taken into account eg
<input type="text" name="array[]" />
values = {};
$("#something :input").each(function() {
if (this.name.search(/\[\]/) > 0) //search for [] in name
{
if (typeof values[this.name] != "undefined") {
values[this.name] = values[this.name].concat([$(this).val()])
} else {
values[this.name] = [$(this).val()];
}
} else {
values[this.name] = $(this).val();
}
});
The naive algorithm, which is what you've got once you correct it as noted in comments, is O(n^3).
There do exist algorithms that reduce this somewhat, but you're not likely to find an O(n^2) implementation. I believe the question of the most efficient implementation is still open.
See this wikipedia article on Matrix Multiplication for more information.
if you really want to do it with integers (but why?), then you could build a dictionary.
col_dict = {x: col for x, col in enumerate(df.columns)}
then df = df.drop(col_dict[0], 1)
will work as desired
edit: you can put it in a function that does that for you, though this way it creates the dictionary every time you call it
def drop_col_n(df, col_n_to_drop):
col_dict = {x: col for x, col in enumerate(df.columns)}
return df.drop(col_dict[col_n_to_drop], 1)
df = drop_col_n(df, 2)
102 is the rule of thumb, convert (varchar, creat_tms, 102) > '2011'
You could use AsyncTask
, you'll have to customize to fit your needs, but something like the following
Async task has three primary methods:
onPreExecute()
- most commonly used for setting up and starting a progress dialog
doInBackground()
- Makes connections and receives responses from the server (Do NOT try to assign response values to GUI elements, this is a common mistake, that cannot be done in a background thread).
onPostExecute()
- Here we are out of the background thread, so we can do user interface manipulation with the response data, or simply assign the response to specific variable types.First we will start the class, initialize a String
to hold the results outside of the methods but inside the class, then run the onPreExecute()
method setting up a simple progress dialog.
class MyAsyncTask extends AsyncTask<String, String, Void> {
private ProgressDialog progressDialog = new ProgressDialog(MainActivity.this);
InputStream inputStream = null;
String result = "";
protected void onPreExecute() {
progressDialog.setMessage("Downloading your data...");
progressDialog.show();
progressDialog.setOnCancelListener(new OnCancelListener() {
public void onCancel(DialogInterface arg0) {
MyAsyncTask.this.cancel(true);
}
});
}
Then we need to set up the connection and how we want to handle the response:
@Override
protected Void doInBackground(String... params) {
String url_select = "http://yoururlhere.com";
ArrayList<NameValuePair> param = new ArrayList<NameValuePair>();
try {
// Set up HTTP post
// HttpClient is more then less deprecated. Need to change to URLConnection
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url_select);
httpPost.setEntity(new UrlEncodedFormEntity(param));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
// Read content & Log
inputStream = httpEntity.getContent();
} catch (UnsupportedEncodingException e1) {
Log.e("UnsupportedEncodingException", e1.toString());
e1.printStackTrace();
} catch (ClientProtocolException e2) {
Log.e("ClientProtocolException", e2.toString());
e2.printStackTrace();
} catch (IllegalStateException e3) {
Log.e("IllegalStateException", e3.toString());
e3.printStackTrace();
} catch (IOException e4) {
Log.e("IOException", e4.toString());
e4.printStackTrace();
}
// Convert response to string using String Builder
try {
BufferedReader bReader = new BufferedReader(new InputStreamReader(inputStream, "utf-8"), 8);
StringBuilder sBuilder = new StringBuilder();
String line = null;
while ((line = bReader.readLine()) != null) {
sBuilder.append(line + "\n");
}
inputStream.close();
result = sBuilder.toString();
} catch (Exception e) {
Log.e("StringBuilding & BufferedReader", "Error converting result " + e.toString());
}
} // protected Void doInBackground(String... params)
Lastly, here we will parse the return, in this example it was a JSON Array and then dismiss the dialog:
protected void onPostExecute(Void v) {
//parse JSON data
try {
JSONArray jArray = new JSONArray(result);
for(i=0; i < jArray.length(); i++) {
JSONObject jObject = jArray.getJSONObject(i);
String name = jObject.getString("name");
String tab1_text = jObject.getString("tab1_text");
int active = jObject.getInt("active");
} // End Loop
this.progressDialog.dismiss();
} catch (JSONException e) {
Log.e("JSONException", "Error: " + e.toString());
} // catch (JSONException e)
} // protected void onPostExecute(Void v)
} //class MyAsyncTask extends AsyncTask<String, String, Void>
//for normal state:
btnSecurite.setTitle("TextHear", for: .normal)
You simply need to start mysql
and feed it with the content of db.sql
:
mysql -u user -p < db.sql
Different ways to connect Oracle Database from Unix user are:
[oracle@OLE1 ~]$ sqlplus scott/tiger
[oracle@OLE1 ~]$ sqlplus scott/tiger@orcl
[oracle@OLE1 ~]$ sqlplus scott/[email protected]:1521/orcl
[oracle@OLE1 ~]$ sqlplus scott/tiger@//192.168.244.128:1521/orcl
[oracle@OLE1 ~]$ sqlplus "scott/tiger@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=ole1)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=orcl)))"
Please see the explanation at link: https://stackoverflow.com/a/45064809/6332029
Thanks!
The warning is a reminder that virtual members are likely to be overridden on derived class. In that case whatever the parent class did to a virtual member will be undone or changed by overriding child class. Look at the small example blow for clarity
The parent class below attempts to set value to a virtual member on its constructor. And this will trigger Re-sharper warning, let see on code:
public class Parent
{
public virtual object Obj{get;set;}
public Parent()
{
// Re-sharper warning: this is open to change from
// inheriting class overriding virtual member
this.Obj = new Object();
}
}
The child class here overrides the parent property. If this property was not marked virtual the compiler would warn that the property hides property on the parent class and suggest that you add 'new' keyword if it is intentional.
public class Child: Parent
{
public Child():base()
{
this.Obj = "Something";
}
public override object Obj{get;set;}
}
Finally the impact on use, the output of the example below abandons the initial value set by parent class constructor. And this is what Re-sharper attempts to to warn you, values set on the Parent class constructor are open to be overwritten by the child class constructor which is called right after the parent class constructor.
public class Program
{
public static void Main()
{
var child = new Child();
// anything that is done on parent virtual member is destroyed
Console.WriteLine(child.Obj);
// Output: "Something"
}
}
I just used less
on top of Cygwin to read a 3GB file, though I ended up using grep
to find what I needed in it.
(less
is more
, but better.)
See this answer for more details on less
: https://stackoverflow.com/a/1343576/1005039
Ctrl + Alt + O to optimize imports
According to the spec, using encodeURIComponent
won't give you a conforming query string. It states:
- Control names and values are escaped. Space characters are replaced by
+
, and then reserved characters are escaped as described in [RFC1738], section 2.2: Non-alphanumeric characters are replaced by%HH
, a percent sign and two hexadecimal digits representing the ASCII code of the character. Line breaks are represented as "CR LF" pairs (i.e.,%0D%0A
).- The control names/values are listed in the order they appear in the document. The name is separated from the value by
=
and name/value pairs are separated from each other by&
.
The problem is, encodeURIComponent
encodes spaces to be %20
, not +
.
The form-body should be coded using a variation of the encodeURIComponent
methods shown in the other answers.
const formUrlEncode = str => {
return str.replace(/[^\d\w]/g, char => {
return char === " "
? "+"
: encodeURIComponent(char);
})
}
const data = {foo: "bar߃©?? baz", boom: "pow"};
const dataPairs = Object.keys(data).map( key => {
const val = data[key];
return (formUrlEncode(key) + "=" + formUrlEncode(val));
}).join("&");
// dataPairs is "foo=bar%C3%9F%C6%92%C2%A9%CB%99%E2%88%91++baz&boom=pow"
It would be difficult to say if there's any issue with your code without checking it out, however this happens to me quite a lot in (Version 6.0 (6A216f)). I usually have to reset the simulator's Content and Settings and/or restart xCode to get it working again. Try those and see if that solves the problem.
TextField( minLines: 1, maxLines: 5, maxLengthEnforced: true)
THERE'S an even simpler answer
import java.io.BufferedReader;
import java.util.Scanner;
public class Main {
public static void main(String[] args)
{
String myBeautifulScanf = new Scanner(System.in).nextLine();
System.out.println( myBeautifulScanf );
}
}
I had the same error message. In my case, Jackson consisted of multiple JAR files. Sadly, they had different versions of jackson-core and jackson-annotations which resulted in the above exception.
Maybe you don't have the jackson-annotation JAR in your classpath, at least not in the correct version. You can analyze the used library versions with the command mvn dependency:tree
.
I had the same problem. To fix it in Jboss 7 AS, I copy the oracle driver jar file to Jboss module folder. Example: ../jboss-as-7.1.1.Final/modules/org/hibernate/main
.
You also need to change "module.xml"
<module xmlns="urn:jboss:module:1.1" name="org.hibernate">
<resources>
<resource-root path="hibernate-core-4.0.1.Final.jar"/>
<resource-root path="hibernate-commons-annotations-4.0.1.Final.jar"/>
<resource-root path="hibernate-entitymanager-4.0.1.Final.jar"/>
<resource-root path="hibernate-infinispan-4.0.1.Final.jar"/>
<resource-root path="ojdbc6.jar"/>
</resources>
<dependencies>
<module name="asm.asm"/>
<module name="javax.api"/>
<module name="javax.persistence.api"/>
<module name="javax.transaction.api"/>
<module name="javax.validation.api"/>
<module name="org.antlr"/>
<module name="org.apache.commons.collections"/>
<module name="org.dom4j"/>
<module name="org.infinispan" optional="true"/>
<module name="org.javassist"/>
<module name="org.jboss.as.jpa.hibernate" slot="4" optional="true"/>
<module name="org.jboss.logging"/>
<module name="org.hibernate.envers" services="import" optional="true"/>
</dependencies>
For those who've been confused by CREATE USER 'root'@'localhost'
when you already have a root account on the server machine, keep in mind that your 'root'@'localhost'
and 'root'@'your_remote_ip'
are two different users (same user name, yet different scope) in mysql server. Hence, creating a new user with your_remote_ip
postfix will actually create a new valid root
user that you can use to access the mysql server from a remote machine.
For example, if you're using root
to connect to your mysql server from a remote machine whose IP is 10.154.10.241
and you want to set a password for the remote root account which is 'Abcdef123!@#'
, here are steps you would want to follow:
On your mysql server machine, do mysql -u root -p
, then enter your password for root
to login.
Once in mysql>
session, do this to create root user for the remote scope:
mysql> CREATE USER 'root'@'10.154.10.241' IDENTIFIED BY 'Abcdef123!@#';
After the Query OK
message, do this to grant the newly created root user all privileges:
mysql> GRANT ALL ON *.* TO 'root'@'10.154.10.241';
And then:
FLUSH PRIVILEGES;
Restart the mysqld service:
sudo service mysqld restart
Confirm that the server has successfully restarted:
sudo service mysqld status
If the steps above were executed without any error, you can now access to the mysql server from a remote machine using root
.
REST webservice: (http://localhost:8080/your-app/rest/data/post)
package com.yourorg.rest;
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
@Path("/data")
public class JSONService {
@POST
@Path("/post")
@Consumes(MediaType.APPLICATION_JSON)
public Response createDataInJSON(String data) {
String result = "Data post: "+data;
return Response.status(201).entity(result).build();
}
Client send a post:
package com.yourorg.client;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;
public class JerseyClientPost {
public static void main(String[] args) {
try {
Client client = Client.create();
WebResource webResource = client.resource("http://localhost:8080/your-app/rest/data/post");
String input = "{\"message\":\"Hello\"}";
ClientResponse response = webResource.type("application/json")
.post(ClientResponse.class, input);
if (response.getStatus() != 201) {
throw new RuntimeException("Failed : HTTP error code : "
+ response.getStatus());
}
System.out.println("Output from Server .... \n");
String output = response.getEntity(String.class);
System.out.println(output);
} catch (Exception e) {
e.printStackTrace();
}
}
}
The short answer is: No. The only way to post images is through the mobile app.
From the Instagram API documentation: http://instagram.com/developer/endpoints/media/
At this time, uploading via the API is not possible. We made a conscious choice not to add this for the following reasons:
- Instagram is about your life on the go – we hope to encourage photos from within the app. However, in the future we may give whitelist access to individual apps on a case by case basis.
- We want to fight spam & low quality photos. Once we allow uploading from other sources, it's harder to control what comes into the Instagram ecosystem.
All this being said, we're working on ways to ensure users have a consistent and high-quality experience on our platform.
You should use strcat
, or better, strncat
. Google it (the keyword is "concatenating").
Just in case anybody finds this, there's a nicer alternative that's not documented (I tripped over it after searching for hours, and finally found it in the bug list for the Android SDK itself). You CAN include raw HTML in strings.xml, as long as you wrap it in
<![CDATA[ ...raw html... ]]>
Example:
<string name="nice_html">
<![CDATA[
<p>This is a html-formatted string with <b>bold</b> and <i>italic</i> text</p>
<p>This is another paragraph of the same string.</p>
]]>
</string>
Then, in your code:
TextView foo = (TextView)findViewById(R.id.foo);
foo.setText(Html.fromHtml(getString(R.string.nice_html)));
IMHO, this is several orders of magnitude nicer to work with :-)
Just found a post Atomic vs. Non-Atomic Operations to be very helpful to me.
"An operation acting on shared memory is atomic if it completes in a single step relative to other threads.
When an atomic store is performed on a shared memory, no other thread can observe the modification half-complete.
When an atomic load is performed on a shared variable, it reads the entire value as it appeared at a single moment in time."
Here is a complete sample to show RecyclerView with 2 types, the view type decide by the object
Class model
open class RecyclerViewItem
class SectionItem(val title: String) : RecyclerViewItem()
class ContentItem(val name: String, val number: Int) : RecyclerViewItem()
Adapter code
const val VIEW_TYPE_SECTION = 1
const val VIEW_TYPE_ITEM = 2
class UserAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
var data = listOf<RecyclerViewItem>()
override fun getItemViewType(position: Int): Int {
if (data[position] is SectionItem) {
return VIEW_TYPE_SECTION
}
return VIEW_TYPE_ITEM
}
override fun getItemCount(): Int {
return data.size
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
if (viewType == VIEW_TYPE_SECTION) {
return SectionViewHolder(
LayoutInflater.from(parent.context).inflate(R.layout.item_user_section, parent, false)
)
}
return ContentViewHolder(
LayoutInflater.from(parent.context).inflate(R.layout.item_user_content, parent, false)
)
}
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
val item = data[position]
if (holder is SectionViewHolder && item is SectionItem) {
holder.bind(item)
}
if (holder is ContentViewHolder && item is ContentItem) {
holder.bind(item)
}
}
internal inner class SectionViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
fun bind(item: SectionItem) {
itemView.text_section.text = item.title
}
}
internal inner class ContentViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
fun bind(item: ContentItem) {
itemView.text_name.text = item.name
itemView.text_number.text = item.number.toString()
}
}
}
item_user_section.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/text_section"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#eee"
android:padding="16dp" />
item_user_content.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="32dp">
<TextView
android:id="@+id/text_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:text="Name" />
<TextView
android:id="@+id/text_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
Example using
val dataSet = arrayListOf<RecyclerViewItem>(
SectionItem("A1"),
ContentItem("11", 11),
ContentItem("12", 12),
ContentItem("13", 13),
SectionItem("A2"),
ContentItem("21", 21),
ContentItem("22", 22),
SectionItem("A3"),
ContentItem("31", 31),
ContentItem("32", 32),
ContentItem("33", 33),
ContentItem("33", 34),
)
recyclerAdapter.data = dataSet
recyclerAdapter.notifyDataSetChanged()
WebClient
doesn't have a direct support for form data, but you can send a HTTP post by using the UploadString method:
Using client as new WebClient
result = client.UploadString(someurl, "param1=somevalue¶m2=othervalue")
End Using
I got this error as I used relative imports incorrectly. In the OP example, test_app.py should import functions using e.g.
from repo.app import *
However liberally __init__.py files are scattered around the file structure, this does not work and creates the kind of ImportError seen unless the files and test files are in the same directory.
from app import *
Here's an example of what I had to do with one of my projects:
Here’s my project structure:
microbit/
microbit/activity_indicator/activity_indicator.py
microbit/tests/test_activity_indicator.py
To be able to access activity_indicator.py from test_activity_indicator.py I needed to:
from microbit.activity_indicator.activity_indicator import *
microbit/
microbit/__init__.py
microbit/activity_indicator/__init__.py
microbit/activity_indicator/activity_indicator.py
microbit/tests/__init__.py
microbit/tests/test_activity_indicator.py
You can't do it with client side script only... you could make an AJAX call to some server side code that will send an email...
Hmmm. There was an answer with a list comprehension here, but it's disappeared.
Here:
[i for i,x in enumerate(testlist) if x == 1]
Example:
>>> testlist
[1, 2, 3, 5, 3, 1, 2, 1, 6]
>>> [i for i,x in enumerate(testlist) if x == 1]
[0, 5, 7]
Update:
Okay, you want a generator expression, we'll have a generator expression. Here's the list comprehension again, in a for loop:
>>> for i in [i for i,x in enumerate(testlist) if x == 1]:
... print i
...
0
5
7
Now we'll construct a generator...
>>> (i for i,x in enumerate(testlist) if x == 1)
<generator object at 0x6b508>
>>> for i in (i for i,x in enumerate(testlist) if x == 1):
... print i
...
0
5
7
and niftily enough, we can assign that to a variable, and use it from there...
>>> gen = (i for i,x in enumerate(testlist) if x == 1)
>>> for i in gen: print i
...
0
5
7
And to think I used to write FORTRAN.
You don't use the :
syntax - pull
always modifies the currently checked-out branch. Thus:
git pull origin my_remote_branch
while you have my_local_branch
checked out will do what you want.
Since you already have the tracking branch set, you don't even need to specify - you could just do...
git pull
while you have my_local_branch
checked out, and it will update from the tracked branch.
The question is already answered, but you can resolve it like this:
const doSomething = (x) => x
export default doSomething;
import doSomething from "./dependency";
export default (x) => doSomething(x * 2);
jest.mock('../dependency');
import doSomething from "../dependency";
import myModule from "../myModule";
describe('myModule', () => {
it('calls the dependency with double the input', () => {
doSomething.mockImplementation((x) => x * 10)
myModule(2);
expect(doSomething).toHaveBeenCalledWith(4);
console.log(myModule(2)) // 40
});
});
You need jQuery see bootstrap's basic template
You want to use css float for this, you can put it directly in your code.
<body>
<img src="website_art.png" height= "75" width="235" style="float:left;"/>
<h3 style="float:right;">The Art of Gaming</h3>
</body>
But I would really suggest learning the basics of css and splitting all your styling out to a separate style sheet, and use classes. It will help you in the future. A good place to start is w3schools or, perhaps later down the path, Mozzila Dev. Network (MDN).
HTML:
<body>
<img src="website_art.png" class="myImage"/>
<h3 class="heading">The Art of Gaming</h3>
</body>
CSS:
.myImage {
float: left;
height: 75px;
width: 235px;
font-family: Veranda;
}
.heading {
float:right;
}
You're missing the actual pipe.
{{ myData | date:'fullDate' }}
Multiple parameters can be separated by a colon (:).
{{ myData | myPipe:'arg1':'arg2':'arg3' }}
Also you can chain pipes, like so:
{{ myData | date:'fullDate' | myPipe:'arg1':'arg2':'arg3' }}
Another way without using the .form-control is this:
$(".dropdown-menu li a").click(function(){
$(this).parents(".btn-group").find('.btn').html($(this).text() + ' <span class="caret"></span>');
$(this).parents(".btn-group").find('.btn').val($(this).data('value'));
});
$(".dropdown-menu li a").click(function(){_x000D_
$(this).parents(".btn-group").find('.btn').html($(this).text() + ' <span class="caret"></span>');_x000D_
$(this).parents(".btn-group").find('.btn').val($(this).data('value'));_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
_x000D_
<link href="http://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
<script src="http://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>_x000D_
_x000D_
_x000D_
<div class="btn-group">_x000D_
<button type="button" class="btn btn-info dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">_x000D_
Test <span class="caret"> </span>_x000D_
</button>_x000D_
<ul class="dropdown-menu">_x000D_
<li><a href='#'>test 1</a></li>_x000D_
<li><a href='#'>test 2</a></li>_x000D_
<li><a href='#'>test 3</a></li>_x000D_
</ul>_x000D_
</div>
_x000D_
You can use this cross-platform function:
#ifdef WIN32
#include <windows.h>
#elif _POSIX_C_SOURCE >= 199309L
#include <time.h> // for nanosleep
#else
#include <unistd.h> // for usleep
#endif
void sleep_ms(int milliseconds){ // cross-platform sleep function
#ifdef WIN32
Sleep(milliseconds);
#elif _POSIX_C_SOURCE >= 199309L
struct timespec ts;
ts.tv_sec = milliseconds / 1000;
ts.tv_nsec = (milliseconds % 1000) * 1000000;
nanosleep(&ts, NULL);
#else
if (milliseconds >= 1000)
sleep(milliseconds / 1000);
usleep((milliseconds % 1000) * 1000);
#endif
}
Try the following code to find the optimal camera position
Use print to get the camera positions
def move_view(event):
ax.autoscale(enable=False, axis='both')
koef = 8
zkoef = (ax.get_zbound()[0] - ax.get_zbound()[1]) / koef
xkoef = (ax.get_xbound()[0] - ax.get_xbound()[1]) / koef
ykoef = (ax.get_ybound()[0] - ax.get_ybound()[1]) / koef
## Map an motion to keyboard shortcuts
if event.key == "ctrl+down":
ax.set_ybound(ax.get_ybound()[0] + xkoef, ax.get_ybound()[1] + xkoef)
if event.key == "ctrl+up":
ax.set_ybound(ax.get_ybound()[0] - xkoef, ax.get_ybound()[1] - xkoef)
if event.key == "ctrl+right":
ax.set_xbound(ax.get_xbound()[0] + ykoef, ax.get_xbound()[1] + ykoef)
if event.key == "ctrl+left":
ax.set_xbound(ax.get_xbound()[0] - ykoef, ax.get_xbound()[1] - ykoef)
if event.key == "down":
ax.set_zbound(ax.get_zbound()[0] - zkoef, ax.get_zbound()[1] - zkoef)
if event.key == "up":
ax.set_zbound(ax.get_zbound()[0] + zkoef, ax.get_zbound()[1] + zkoef)
# zoom option
if event.key == "alt+up":
ax.set_xbound(ax.get_xbound()[0]*0.90, ax.get_xbound()[1]*0.90)
ax.set_ybound(ax.get_ybound()[0]*0.90, ax.get_ybound()[1]*0.90)
ax.set_zbound(ax.get_zbound()[0]*0.90, ax.get_zbound()[1]*0.90)
if event.key == "alt+down":
ax.set_xbound(ax.get_xbound()[0]*1.10, ax.get_xbound()[1]*1.10)
ax.set_ybound(ax.get_ybound()[0]*1.10, ax.get_ybound()[1]*1.10)
ax.set_zbound(ax.get_zbound()[0]*1.10, ax.get_zbound()[1]*1.10)
# Rotational movement
elev=ax.elev
azim=ax.azim
if event.key == "shift+up":
elev+=10
if event.key == "shift+down":
elev-=10
if event.key == "shift+right":
azim+=10
if event.key == "shift+left":
azim-=10
ax.view_init(elev= elev, azim = azim)
# print which ever variable you want
ax.figure.canvas.draw()
fig.canvas.mpl_connect("key_press_event", move_view)
plt.show()
<head>
<script type="text/javascript">
<%=YourScript %>
function functionname1(arg1,arg2){content}
</script>
</head>
public string YourScript = "";
public string functionname(arg)
{
if (condition)
{
YourScript = "functionname1(arg1,arg2);";
}
}
Not Sure which version of selenium you are referring to, however some commands in selenium * can now do this: http://release.seleniumhq.org/selenium-core/0.8.0/reference.html
Etc..
Assuming your Generic List is of type String:
TextWriter tw = new StreamWriter("SavedList.txt");
foreach (String s in Lists.verbList)
tw.WriteLine(s);
tw.Close();
Alternatively, with the using keyword:
using(TextWriter tw = new StreamWriter("SavedList.txt"))
{
foreach (String s in Lists.verbList)
tw.WriteLine(s);
}
jFeed is somewhat obsolete, working only with older versions of jQuery. It has been two years since it was updated.
zRSSFeed is perhaps a little less flexible, but it is easy to use, and it works with the current version of jQuery (currently 1.4). http://www.zazar.net/developers/zrssfeed/
Here's a quick example from the zRSSFeed docs:
<div id="test"><div>
<script type="text/javascript">
$(document).ready(function () {
$('#test').rssfeed('http://feeds.reuters.com/reuters/oddlyEnoughNews', {
limit: 5
});
});
</script>
Like others mentioned, your app runs in a sandboxed environment and you can use the documents directory to store images or other assets your app may use, eg. downloading offline-d files as user prefers - File System Basics - Apple Documentation - Which directory to use, for storing application specific files
Updated to swift 5, you can use one of these functions, as per requirement -
func getDocumentsDirectory() -> URL {
let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
return paths[0]
}
func getCacheDirectory() -> URL {
let paths = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask)
return paths[0]
}
func getApplicationSupportDirectory() -> URL {
let paths = FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask)
return paths[0]
}
Usage:
let urlPath = "https://jumpcloud.com/wp-content/uploads/2017/06/SSH-Keys.png" //Or string path to some URL of valid image, for eg.
if let url = URL(string: urlPath){
let destination = getDocumentsDirectory().appendingPathComponent(url.lastPathComponent)
do {
let data = try Data(contentsOf: url) //Synchronous call, just as an example
try data.write(to: destination)
} catch _ {
//Do something to handle the error
}
}
To run batch files using java if that's you're talking about...
String path="cmd /c start d:\\sample\\sample.bat";
Runtime rn=Runtime.getRuntime();
Process pr=rn.exec(path);`
This should do it.
In C the char type has a numeric value so the > operator will work just fine for example
#include <stdio.h>
main() {
char a='z';
char b='h';
if ( a > b ) {
printf("%c greater than %c\n",a,b);
}
}
Same solution worked as suggested by hpereira
The issue was due to JRE version was 32 bit and not 64 Bit
Check with java -version
to see if your Java is 64 bit
C:\>java -version
java version "1.8.0_192"
Java(TM) SE Runtime Environment (build 1.8.0_192-b12)
Java HotSpot(TM) **64-Bit Server** VM (build 25.192-b12, mixed mode)
~ $ hciconfig noauth
It worked for me in "Linux mx 4.19"
The exact steps are:
1) open a terminal - run: "hciconfig noauth"
2) use the blueman-manager gui to pair the device (in my case it was a keyboard)
3) from the blueman-manager choose "connect to HID"
step(3) is normally asking for a password - the "hciconfig noauth" makes step(3) passwordless
There is kind of two solutions on the client. One is with frames like you posted. You can use an iframe though:
var content = document.getElementById("divcontents");
var pri = document.getElementById("ifmcontentstoprint").contentWindow;
pri.document.open();
pri.document.write(content.innerHTML);
pri.document.close();
pri.focus();
pri.print();
This expects this html to exist
<iframe id="ifmcontentstoprint" style="height: 0px; width: 0px; position: absolute"></iframe>
The other solution is to use the media selector and on the media="print"
styles hide everything you don't want to print.
<style type="text/css" media="print">
.no-print { display: none; }
</style>
Last way requires some work on the server. You can send all the HTML+CSS to the server and use one of many components to generate a printable document like PDF. I've tried setups doing this with PhantomJs.
Using Apache Commons IO.
import org.apache.commons.io.FileUtils;
//...
String contents = FileUtils.readFileToString(new File("/path/to/the/file"), "UTF-8")
You can see de javadoc for the method for details.
Okay, if you're on a Mac, do this:
stat -f %z "/Users/Example/config.log"
That's it!
Not really necessary, but a small improvement to o.k.w.'s code that would make the function call faster (since you're moving the conditional outside the function call).
$("#radiobutt input[type=radio]").each(function(i) {
if (i == 2) { //3rd radiobutton
$(this).click(function () {
$("#textbox1").attr("disabled", "disabled");
$("#checkbox1").attr("disabled", "disabled");
});
} else {
$(this).click(function () {
$("#textbox1").removeAttr("disabled");
$("#checkbox1").removeAttr("disabled");
});
}
});
Here's your one-liner, without using any regular expressions, which can get expensive at times:
>>> ''.join(filter(str.isdigit, "1234GAgade5312djdl0"))
returns:
'123453120'
I founded the problem:
Just insert the folder without the executable file.
so Instead of:
C:\Program Files (x86)\SumatraPDF\SumatraPDF.exe
you have to write this:
C:\Program Files (x86)\SumatraPDF\
When a JSF view (Facelets/JSP file) get built/restored, a JSF component tree will be produced. At that moment, the view build time, all binding
attributes are evaluated (along with id
attribtues and taghandlers like JSTL). When the JSF component needs to be created before being added to the component tree, JSF will check if the binding
attribute returns a precreated component (i.e. non-null
) and if so, then use it. If it's not precreated, then JSF will autocreate the component "the usual way" and invoke the setter behind binding
attribute with the autocreated component instance as argument.
In effects, it binds a reference of the component instance in the component tree to a scoped variable. This information is in no way visible in the generated HTML representation of the component itself. This information is in no means relevant to the generated HTML output anyway. When the form is submitted and the view is restored, the JSF component tree is just rebuilt from scratch and all binding
attributes will just be re-evaluated like described in above paragraph. After the component tree is recreated, JSF will restore the JSF view state into the component tree.
Important to know and understand is that the concrete component instances are effectively request scoped. They're newly created on every request and their properties are filled with values from JSF view state during restore view phase. So, if you bind the component to a property of a backing bean, then the backing bean should absolutely not be in a broader scope than the request scope. See also JSF 2.0 specitication chapter 3.1.5:
3.1.5 Component Bindings
...
Component bindings are often used in conjunction with JavaBeans that are dynamically instantiated via the Managed Bean Creation facility (see Section 5.8.1 “VariableResolver and the Default VariableResolver”). It is strongly recommend that application developers place managed beans that are pointed at by component binding expressions in “request” scope. This is because placing it in session or application scope would require thread-safety, since UIComponent instances depends on running inside of a single thread. There are also potentially negative impacts on memory management when placing a component binding in “session” scope.
Otherwise, component instances are shared among multiple requests, possibly resulting in "duplicate component ID" errors and "weird" behaviors because validators, converters and listeners declared in the view are re-attached to the existing component instance from previous request(s). The symptoms are clear: they are executed multiple times, one time more with each request within the same scope as the component is been bound to.
And, under heavy load (i.e. when multiple different HTTP requests (threads) access and manipulate the very same component instance at the same time), you may face sooner or later an application crash with e.g. Stuck thread at UIComponent.popComponentFromEL, or Java Threads at 100% CPU utilization using richfaces UIDataAdaptorBase and its internal HashMap, or even some "strange" IndexOutOfBoundsException
or ConcurrentModificationException
coming straight from JSF implementation source code while JSF is busy saving or restoring the view state (i.e. the stack trace indicates saveState()
or restoreState()
methods and like).
binding
on a bean property is bad practiceRegardless, using binding
this way, binding a whole component instance to a bean property, even on a request scoped bean, is in JSF 2.x a rather rare use case and generally not the best practice. It indicates a design smell. You normally declare components in the view side and bind their runtime attributes like value
, and perhaps others like styleClass
, disabled
, rendered
, etc, to normal bean properties. Then, you just manipulate exactly that bean property you want instead of grabbing the whole component and calling the setter method associated with the attribute.
In cases when a component needs to be "dynamically built" based on a static model, better is to use view build time tags like JSTL, if necessary in a tag file, instead of createComponent()
, new SomeComponent()
, getChildren().add()
and what not. See also How to refactor snippet of old JSP to some JSF equivalent?
Or, if a component needs to be "dynamically rendered" based on a dynamic model, then just use an iterator component (<ui:repeat>
, <h:dataTable>
, etc). See also How to dynamically add JSF components.
Composite components is a completely different story. It's completely legit to bind components inside a <cc:implementation>
to the backing component (i.e. the component identified by <cc:interface componentType>
. See also a.o. Split java.util.Date over two h:inputText fields representing hour and minute with f:convertDateTime and How to implement a dynamic list with a JSF 2.0 Composite Component?
binding
in local scopeHowever, sometimes you'd like to know about the state of a different component from inside a particular component, more than often in use cases related to action/value dependent validation. For that, the binding
attribute can be used, but not in combination with a bean property. You can just specify an in the local EL scope unique variable name in the binding
attribute like so binding="#{foo}"
and the component is during render response elsewhere in the same view directly as UIComponent
reference available by #{foo}
. Here are several related questions where such a solution is been used in the answer:
Use an EL expression to pass a component ID to a composite component in JSF
(and that's only from the last month...)
when you say 'appendchild' you actually move your child from one parent to another. you have to create a node for each cell.
Simply create this folder:
C:\Users\xxxxx\android-sdk\tools
and then from Window -> Preferences -> Android
, put this path:
C:\Users\xxxxx\android-sdk
There is no way to do this. Your options are to use a JavaScript or a CSS block.
Maybe there is some JavaScript library that will convert a proprietary style attribute to a style block. But then the code will not be standard-compliant.
What worked for me was fs.promises.
Example One:
const fs = require("fs")
fs.promises
.writeFile(__dirname + '/test.json', "data", { encoding: 'utf8' })
.then(() => {
// Do whatever you want to do.
console.log('Done');
});
Example Two. Using Async-Await:
const fs = require("fs")
async function writeToFile() {
await fs.promises.writeFile(__dirname + '/test-22.json', "data", {
encoding: 'utf8'
});
console.log("done")
}
writeToFile()
If you are trying to load the image at your form_load, it's a better idea to use the code
pictureBox1.LoadAsync(@"http://google.com/test.png");
not only loading from web but also no lag in your form loading.
The URI "file:///android_asset/"
points to YourProject/app/src/main/assets/
.
Note: android_asset/
uses the singular (asset) and src/main/assets
uses the plural (assets).
Suppose you have a file YourProject/app/src/main/assets/web_thing.html
that you would like to display in a WebView. You can refer to it like this:
WebView webViewer = (WebView) findViewById(R.id.webViewer);
webView.loadUrl("file:///android_asset/web_thing.html");
The snippet above could be located in your Activity class, possibly in the onCreate
method.
Here is a guide to the overall directory structure of an android project, that helped me figure out this answer.
This version works on ios and also fixes standard drag-to-select on windows chrome
var srcEvent = null;
$("input[type=text],input[type=number]")
.mousedown(function (event) {
srcEvent = event;
})
.mouseup(function (event) {
var delta = Math.abs(event.clientX - srcEvent.clientX)
+ Math.abs(event.clientY - srcEvent.clientY);
var threshold = 2;
if (delta <= threshold) {
try {
// ios likes this but windows-chrome does not on number fields
$(this)[0].selectionStart = 0;
$(this)[0].selectionEnd = 1000;
} catch (e) {
// windows-chrome likes this
$(this).select();
}
}
});
DOM Elements support converting text to HTML by assigning to innerText. innerText is not a function but assigning to it works as if the text were escaped.
document.querySelectorAll('#id')[0].innerText = 'unsafe " String >><>';
Your property file location is classpath:idm.properties
This is rather unusual, it means that idm.properties
must be located either at the top level of WEB-INF/classes
or at the top-level of one of the jars inside WEB-INF/lib
. Usually it's good practice to either use a dedicated folder for properties or keep them close to the context files that use them.
So my suggestion is this: Is your properties file perhaps next to your context file? If so, it's not on the classpath (see this question: Is WEB-INF in the CLASSPATH?).
The classpath:
prefix maps to a ClassPathResource
, but you probably need a ServletContextResource
, and you'll get that from a WebApplicationContext
using the syntax without prefix:
<context:property-placeholder location="idm.properties" />
Reference:
ResourceLoader
ApplicationContext
types handle resources without prefix)PropertyPlaceholderConfigurer
mechanism<context:property-placeholder>
mechanism)Java jar files are the same format as zip files - so if you have a zip file utility that would let you modify an archive, you have your foot in the door. Second problem is, if you want to recompile a class or something, you probably will just have to re-build the jar; but a text file or something (xml, for instance) should be easily enough modified.
In date '?'
, the '?'
is a literal string with value ?
, not a parameter placeholder, so your query does not have any parameters. The date
is a shorthand cast from (literal) string to date. You need to replace date '?'
with ?
to actually have a parameter.
Also if you know it is a date, then use setDate(..)
and not setString(..)
to set the parameter.
Swift 4.2
For multiple selections you need to set the UITableView
property allowsMultipleSelection
to true.
myTableView.allowsMultipleSelection = true
In case you subclassed the UITableViewCell, you override setSelected(_ selected: Bool, animated: Bool)
method in your custom cell class.
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
if selected {
contentView.backgroundColor = UIColor.green
} else {
contentView.backgroundColor = UIColor.blue
}
}
The below command will get all the file names from your AWS S3 bucket and write into text file in your current directory:
aws s3 ls s3://Bucketdirectory/Subdirectory/ | cat >> FileNames.txt
This post is very much helpful to all of you
First Parse the json data by using jquery eval parser and then iterarate through jquery each function below is the code sniplet:
var obj = eval("(" + data.d + ")");
alert(obj);
$.each(obj, function (index,Object) {
var Id = Object.Id;
var AptYear = Object.AptYear;
$("#ddlyear").append('<option value=' + Id + '>' + AptYear + '</option>').toString();
});
I had to specify the AWS profile to use --profile default
explicitly to get rid of this error while running AWS CLI commands. I could not understand though that why it did not pick up this profile automatically as there was only [dafault]
profile present in my aws config and credentials file.
I hope this helps.
Cheers, Kunal
If you install the SDK, the offline documentation can be found in $ANDROID_SDK/docs/
.
I don't think this is possible in Python, since what you're actually trying to do probably gets expanded to something like this:
num1 = 20 if someBoolValue else num1
If you exclude else num1
, you'll receive a syntax error since I'm quite sure that the assignment must actually return something.
As others have already mentioned, you could do this, but it's bad because you'll probably just end up confusing yourself when reading that piece of code the next time:
if someBoolValue: num1=20
I'm not a big fan of the num1 = someBoolValue and 20 or num1
for the exact same reason. I have to actually think twice on what that line is doing.
The best way to actually achieve what you want to do is the original version:
if someBoolValue:
num1 = 20
The reason that's the best verison is because it's very obvious what you want to do, and you won't confuse yourself, or whoever else is going to come in contact with that code later.
Also, as a side note, num1 = 20 if someBoolValue
is valid Ruby code, because Ruby works a bit differently.
There is no API for this, and you can't auto install it, you can just redirect them to it's Market page so they can upgrade. You can have your latest version in a file on a Web server, and have the app check it. Here's one implementation of this:
http://code.google.com/p/openintents/source/browse/#svn%2Ftrunk%2FUpdateCheckerApp
Posting data is a matter of sending a query string (just like the way you would send it with an URL after the ?
) as the request body.
This requires Content-Type
and Content-Length
headers, so the receiving server knows how to interpret the incoming data. (*)
var querystring = require('querystring');
var http = require('http');
var data = querystring.stringify({
username: yourUsernameValue,
password: yourPasswordValue
});
var options = {
host: 'my.url',
port: 80,
path: '/login',
method: 'POST',
headers: {
'Content-Type': 'application/x-www-form-urlencoded',
'Content-Length': Buffer.byteLength(data)
}
};
var req = http.request(options, function(res) {
res.setEncoding('utf8');
res.on('data', function (chunk) {
console.log("body: " + chunk);
});
});
req.write(data);
req.end();
(*) Sending data requires the Content-Type header to be set correctly, i.e. application/x-www-form-urlencoded
for the traditional format that a standard HTML form would use.
It's easy to send JSON (application/json
) in exactly the same manner; just JSON.stringify()
the data beforehand.
URL-encoded data supports one level of structure (i.e. key and value). JSON is useful when it comes to exchanging data that has a nested structure.
The bottom line is: The server must be able to interpret the content type in question. It could be text/plain
or anything else; there is no need to convert data if the receiving server understands it as it is.
Add a charset parameter (e.g. application/json; charset=Windows-1252
) if your data is in an unusual character set, i.e. not UTF-8. This can be necessary if you read it from a file, for example.
I have encountered this problem too, when using some 3rd party data layer in one of my .NET applications. The problem was that the layer did not close the connections properly.
We threw out the layer and created one ourselves, which always closes and disposes the connections. Since then we don't get the error anymore.
In Java, all non-static methods are by default "virtual functions." Only methods marked with the keyword final, which cannot be overridden, along with private methods, which are not inherited, are non-virtual.
parseInt()
with radix is a best solution (as was told by many):
But if you want to implement it without parseInt, here is an implementation:
function bin2dec(num){
return num.split('').reverse().reduce(function(x, y, i){
return (y === '1') ? x + Math.pow(2, i) : x;
}, 0);
}
TL;DR: Follow Go conventions! (lesson learned the hard way), check for old go versions and remove them. Install latest.
For me the solution was different. I worked on a shared Linux server and after verifying my GOPATH
and other environment variables several times it still didn't work. I encountered several errors including 'Cannot find package' and 'unrecognized import path'. After trying to reinstall with this solution by the instructions on golang.org (including the uninstall part) still encountered problems.
Took me some time to realize that there's still an old version that hasn't been uninstalled (running go version
then which go
again... DAHH) which got me to this question and finally solved.
may be this will help:
map.setCenter(window.markersArray[2].getPosition());
all the markers info are in markersArray array and it is global. So you can access it from anywhere using window.variablename. Each marker has a unique id and you can put that id in the key of array. so you create marker like this:
window.markersArray[2] = new google.maps.Marker({
position: new google.maps.LatLng(23.81927, 90.362349),
map: map,
title: 'your info '
});
Hope this will help.
You could use np.where
to find where you have NaN
:
import numpy as np
a = np.array([[ 0, 43, 67, 0, 38],
[ 100, 86, 96, 100, 94],
[ 76, 79, 83, 89, 56],
[ 88, np.nan, 67, 89, 81],
[ 94, 79, 67, 89, 69],
[ 88, 79, 58, 72, 63],
[ 76, 79, 71, 67, 56],
[ 71, 71, np.nan, 56, 100]])
b = np.where(np.isnan(a), 0, a)
In [20]: b
Out[20]:
array([[ 0., 43., 67., 0., 38.],
[ 100., 86., 96., 100., 94.],
[ 76., 79., 83., 89., 56.],
[ 88., 0., 67., 89., 81.],
[ 94., 79., 67., 89., 69.],
[ 88., 79., 58., 72., 63.],
[ 76., 79., 71., 67., 56.],
[ 71., 71., 0., 56., 100.]])
To set custom headers ON A REQUEST, build a request with the custom header before passing it to httpclient to send to http server. eg:
HttpClient client = HttpClients.custom().build();
HttpUriRequest request = RequestBuilder.get()
.setUri(someURL)
.setHeader(HttpHeaders.CONTENT_TYPE, "application/json")
.build();
client.execute(request);
Default header is SET ON HTTPCLIENT to send on every request to the server.
Delimiters, delimiters...
You really need them when there are multiple statements in your procedure. (in other words, do you have a ;
in your code and then more statements/commands? Then, you need to use delimiters).
For such a simpler rpocedure as yours though, you could just do:
CREATE PROCEDURE ProG()
SELECT * FROM `hs_hr_employee_leave_quota`;
Just a quick little function I drummed up that moves DIVs from their current spot to a target spot, one pixel step at a time. I tried to comment as best as I could, but the part you're interested in, is in example 1 and example 2, right after [$(function() { // jquery document.ready]. Put your bounds checking code there, and then exit the interval if conditions are met. Requires jQuery.
First the Demo: http://jsfiddle.net/pnYWY/
First the DIVs...
<style>
.moveDiv {
position:absolute;
left:20px;
top:20px;
width:10px;
height:10px;
background-color:#ccc;
}
.moveDivB {
position:absolute;
left:20px;
top:20px;
width:10px;
height:10px;
background-color:#ccc;
}
</style>
<div class="moveDiv"></div>
<div class="moveDivB"></div>
example 1) Start
// first animation (fire right away)
var myVar = setInterval(function(){
$(function() { // jquery document.ready
// returns true if it just took a step
// returns false if the div has arrived
if( !move_div_step(55,25,'.moveDiv') )
{
// arrived...
console.log('arrived');
clearInterval(myVar);
}
});
},50); // set speed here in ms for your delay
example 2) Delayed Start
// pause and then fire an animation..
setTimeout(function(){
var myVarB = setInterval(function(){
$(function() { // jquery document.ready
// returns true if it just took a step
// returns false if the div has arrived
if( !move_div_step(25,55,'.moveDivB') )
{
// arrived...
console.log('arrived');
clearInterval(myVarB);
}
});
},50); // set speed here in ms for your delay
},5000);// set speed here for delay before firing
Now the Function:
function move_div_step(xx,yy,target) // takes one pixel step toward target
{
// using a line algorithm to move a div one step toward a given coordinate.
var div_target = $(target);
// get current x and current y
var x = div_target.position().left; // offset is relative to document; position() is relative to parent;
var y = div_target.position().top;
// if x and y are = to xx and yy (destination), then div has arrived at it's destination.
if(x == xx && y == yy)
return false;
// find the distances travelled
var dx = xx - x;
var dy = yy - y;
// preventing time travel
if(dx < 0) dx *= -1;
if(dy < 0) dy *= -1;
// determine speed of pixel travel...
var sx=1, sy=1;
if(dx > dy) sy = dy/dx;
else if(dy > dx) sx = dx/dy;
// find our one...
if(sx == sy) // both are one..
{
if(x <= xx) // are we going forwards?
{
x++; y++;
}
else // .. we are going backwards.
{
x--; y--;
}
}
else if(sx > sy) // x is the 1
{
if(x <= xx) // are we going forwards..?
x++;
else // or backwards?
x--;
y += sy;
}
else if(sy > sx) // y is the 1 (eg: for every 1 pixel step in the y dir, we take 0.xxx step in the x
{
if(y <= yy) // going forwards?
y++;
else // .. or backwards?
y--;
x += sx;
}
// move the div
div_target.css("left", x);
div_target.css("top", y);
return true;
} // END :: function move_div_step(xx,yy,target)
#Windows
Another one reason - maybe your port has been excluded by some reasons.
So, try open CMD under admin rights and run :
net stop winnat
net start winnat
In my case it was enough.
Solution found here : https://medium.com/@Bartleby/ports-are-not-available-listen-tcp-0-0-0-0-3000-165892441b9d
Try this:
If Len(vValue & vbNullString) > 0 Then
' we have a non-Null and non-empty String value
doSomething()
Else
' We have a Null or empty string value
doSomethingElse()
End If
You should look for a hosting company that provides such feature, but standard simple static+PHP+MySQL hosting won't let you use node.js.
You need either find a hosting designed for node.js or buy a Virtual Private Server and install it yourself.
While there is still some truth to most of the answers above, I think they deserve an update:
Over the years the performance of SVG has improved a lot and now there is hardware-accelerated CSS transitions and animations for SVG that do not depend on JavaScript performance at all. Of course JavaScript performance has improved, too and with it the performance of Canvas, but not as much as SVG got improved. Also there is a "new kid" on the block that is available in almost all browsers today and that is WebGL. To use the same words that Simon used above: It beats both Canvas and SVG hands down. This doesn't mean it should be the go-to technology, though, since it's a beast to work with and it is only faster in very specific use-cases.
IMHO for most use-cases today, SVG gives the best performance/usability ratio. Visualizations need to be really complex (with respect to number of elements) and really simple at the same time (per element) so that Canvas and even more so WebGL really shine.
In this answer to a similar question I am providing more details, why I think that the combination of all three technologies sometimes is the best option you have.
Simple solution for this problem to have quick chat with person who has owner role in gitlab. He can push one file READ.md or similar to just start with. Later, everything will be working as earlier.
In case you have an async helperFunction()
called from your test... (one explicilty with the ES7 async
keyword, I mean)
? make sure, you call that as await helperFunction(whateverParams)
(well, yeah, naturally, once you know...)
And for that to work (to avoid ‘await is a reserved word’), your test-function must have an outer async marker:
it('my test', async () => { ...
You can do it with a table, like this:
<table width="100%">
<tr>
<td style="width: 50%">Left Text</td>
<td style="width: 50%; text-align: right;">Right Text</td>
</tr>
</table>
Or, you can do it with CSS like this:
<div style="float: left;">
Left text
</div>
<div style="float: right;">
Right text
</div>
Since you cannot have two methods with the same name and signature you have to use the ActionName
attribute:
[HttpGet]
public ActionResult Index()
{
// your code
return View();
}
[HttpPost]
[ActionName("Index")]
public ActionResult IndexPost()
{
// your code
return View();
}
Also see "How a Method Becomes An Action"
Here's a non-standard but cross-browser method that may be useful if you don't want to pass any arguments:-
Html:
<div onclick=myHandler() id="my element's id">→ Click Here! ←</div>
Script:
function myHandler(){
alert(myHandler.caller.arguments[0].target.id)
}
As mentioned in a comment to ephrion's answer above, filter() can be slow, especially with large arrays, as it loops to look for an index that appears to have been determined already. This is a clean, but inefficient solution.
As an alternative one can simply 'slice' out the desired element and concatenate the fragments.
var dummyArray = [];
this.setState({data: dummyArray.concat(this.state.data.slice(0, index), this.state.data.slice(index))})
Hope this helps!
send html email via codeiginater
$this->load->library('email');
$this->load->library('parser');
$this->email->clear();
$config['mailtype'] = "html";
$this->email->initialize($config);
$this->email->set_newline("\r\n");
$this->email->from('[email protected]', 'Website');
$list = array('[email protected]', '[email protected]');
$this->email->to($list);
$data = array();
$htmlMessage = $this->parser->parse('messages/email', $data, true);
$this->email->subject('This is an email test');
$this->email->message($htmlMessage);
if ($this->email->send()) {
echo 'Your email was sent, thanks chamil.';
} else {
show_error($this->email->print_debugger());
}
var c = {'a':'A', 'b':'B', 'c':'C'};
var count = 0;
for (var i in c) {
if (c.hasOwnProperty(i)) count++;
}
alert(count);
I'v been used following code in IE. (IE8 compatible)
var dString = "2013.2.4";
var myDate = new Date( dString.replace(/(\d+)\.(\d+)\.(\d+)/,"$2/$3/$1") );
alert( "my date:"+ myDate );
ENABLEDELAYEDEXPANSION
is a parameter passed to the SETLOCAL
command (look at setlocal /?
)
Its effect lives for the duration of the script, or an ENDLOCAL
:
When the end of a batch script is reached, an implied
ENDLOCAL
is executed for any outstandingSETLOCAL
commands issued by that batch script.
In particular, this means that if you use SETLOCAL ENABLEDELAYEDEXPANSION
in a script, any environment variable changes are lost at the end of it unless you take special measures.
Well, it's not a single statement, but it's about as close as you can get with oracle:
BEGIN
FOR R IN (SELECT owner, table_name FROM all_tables WHERE owner='TheOwner') LOOP
EXECUTE IMMEDIATE 'grant select on '||R.owner||'.'||R.table_name||' to TheUser';
END LOOP;
END;
As you've figured out, Entity Framework can't actually run your C# code as part of its query. It has to be able to convert the query to an actual SQL statement. In order for that to work, you will have to restructure your query expression into an expression that Entity Framework can handle.
public System.Linq.Expressions.Expression<Func<Charity, bool>> IsSatisfied()
{
string name = this.charityName;
string referenceNumber = this.referenceNumber;
return p =>
(string.IsNullOrEmpty(name) ||
p.registeredName.ToLower().Contains(name.ToLower()) ||
p.alias.ToLower().Contains(name.ToLower()) ||
p.charityId.ToLower().Contains(name.ToLower())) &&
(string.IsNullOrEmpty(referenceNumber) ||
p.charityReference.ToLower().Contains(referenceNumber.ToLower()));
}
I found that simply setting the src to an empty string and adding a rule to your CSS to hide the broken image icon works just fine.
[src=''] {
visibility: hidden;
}
if( ($_POST) && (!empty($_POST['cover_image'])) ) //verifies if post exists and cover_image is not empty
{
//execute whatever code you want
}
UPDATE: Geocode.xyz now works worldwide. For examples see https://geocode.xyz
For USA, Mexico and Canada, see geocoder.ca.
For example:
Input: something going on near the intersection of main and arthur kill rd new york
Output:
<geodata> <latt>40.5123510000</latt> <longt>-74.2500500000</longt> <AreaCode>347,718</AreaCode> <TimeZone>America/New_York</TimeZone> <standard> <street1>main</street1> <street2>arthur kill</street2> <stnumber/> <staddress/> <city>STATEN ISLAND</city> <prov>NY</prov> <postal>11385</postal> <confidence>0.9</confidence> </standard> </geodata>
You may also check the results in the web interface or get output as Json or Jsonp. eg. I'm looking for restaurants around 123 Main Street, New York
I use this:
1) The parent activity call the secondary activity with the method "startActivityForResult"
2) In the secondary activity when is closing:
int exitCode = 1; // Select the number you want
setResult(exitCode);
finish();
3) And in the parent activity override the method "onActivityResult":
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
int exitCode = 1;
if(resultCode == exitCode) {
super.setResult(exitCode); // use this if you have more than 2 activities
finish();
}
}
This works fine for me.
Apart from basic differences mentioned above, there is a core subtle difference between instanceof operator and isAssignableFrom method in Class.
Read instanceof
as “is this (the left part) the instance of this or any subclass of this (the right part)” and read x.getClass().isAssignableFrom(Y.class)
as “Can I write X x = new Y()
”. In other words, instanceof operator checks if the left object is same or subclass of right class, while isAssignableFrom
checks if we can assign object of the parameter class (from) to the reference of the class on which the method is called.
Note that both of these consider the actual instance not the reference type.
Consider an example of 3 classes A, B and C where C extends B and B extends A.
B b = new C();
System.out.println(b instanceof A); //is b (which is actually class C object) instance of A, yes. This will return true.
System.out.println(b instanceof B); // is b (which is actually class C object) instance of B, yes. This will return true.
System.out.println(b instanceof C); // is b (which is actually class C object) instance of C, yes. This will return true. If the first statement would be B b = new B(), this would have been false.
System.out.println(b.getClass().isAssignableFrom(A.class));//Can I write C c = new A(), no. So this is false.
System.out.println(b.getClass().isAssignableFrom(B.class)); //Can I write C c = new B(), no. So this is false.
System.out.println(b.getClass().isAssignableFrom(C.class)); //Can I write C c = new C(), Yes. So this is true.
I tried every solution posted here and still got flickering in Firefox.
If it helps anyone, I solved it by adding style="display: none;"
to the main content div, then using jQuery (I was already using it on the page) $('#main-div-id').show();
once everything was loaded after getting data from the server;
NSLog(@"%s %d %s %s", __FILE__, __LINE__, __PRETTY_FUNCTION__, __FUNCTION__);
Outputs file name, line number, and function name:
/proj/cocoa/cdcli/cdcli.m 121 managedObjectContext managedObjectContext
__FUNCTION__
in C++ shows mangled name __PRETTY_FUNCTION__
shows nice function name, in cocoa they look the same.
I'm not sure what is the proper way of disabling NSLog, I did:
#define NSLog
And no logging output showed up, however I don't know if this has any side effects.
That is because FirstOrDefault
can return null
causing your following .Value
to cause the exception. You need to change it to something like:
var myThing = things.FirstOrDefault(t => t.Id == idToFind);
if(myThing == null)
return; // we failed to find what we wanted
var displayName = myThing.DisplayName;
<%= f.select :project_id, @project_select, :selected => params[:pid] %>
The problem is with line
imageWidth = 1 * Convert.ToInt32(Label1.Text);
Label1.Text
may or may not be int. Check.
Use Int32.TryParse(value, out number)
instead. That will solve your problem.
int imageWidth;
if(Int32.TryParse(Label1.Text, out imageWidth))
{
Image1.Width= imageWidth;
}
Just store a regular datetime and ignore everything else. Why spend extra time writing code that loads an int, manipulates it, and converts it into a datetime, when you could just load a datetime?
Replace the desired hyphen with an underscore; it will automatically be rendered as a hyphen:
@Html.ActionLink("Edit", "edit", "markets",
new { id = 1 },
new {@class="ui-btn-right", data_icon="gear"})
becomes:
<form action="markets/Edit/1" class="ui-btn-right" data-icon="gear" .../>
It is going to write the value of your property model.Destination
This is by design. You'll want to populate your Destination property with the value you want in your controller before returning your view.
Just keep a currentValue variable in your controller that you update on every change. You can then compare that to the new value every time before you update it.'
The idea of using a watch is good as well, but I think a simple variable is the simplest and most logical solution.
Calling p.plot
after setting the limits is why it is rescaling. You are correct in that turning autoscaling off will get the right answer, but so will calling xlim()
or ylim()
after your plot
command.
I use this quite a lot to invert the x axis, I work in astronomy and we use a magnitude system which is backwards (ie. brighter stars have a smaller magnitude) so I usually swap the limits with
lims = xlim()
xlim([lims[1], lims[0]])
If you want an one-line-template. Here it is
int nxt_po2(int n) { return 1 + (n|=(n|=(n|=(n|=(n|=(n-=1)>>1)>>2)>>4)>>8)>>16); }
or
int nxt_po2(int n) { return 1 + (n|=(n|=(n|=(n|=(n|=(n-=1)>>(1<<0))>>(1<<1))>>(1<<2))>>(1<<3))>>(1<<4)); }
Remove the width:100%;
declarations.
Block elements should take up the whole available width by default.
You get this error when a datasource attempts to bind to data but cannot because it cannot find the connection string. In my experience, this is not usually due to an error in the web.config (though I am not 100% sure of this).
If you are programmatically assigning a datasource (such as a SqlDataSource) or creating a query (i.e. using a SqlConnection/SqlCommand combination), make sure you assigned it a ConnectionString.
var connection = new SqlConnection(ConfigurationManager.ConnectionStrings[nameOfString].ConnectionString);
If you are hooking up a databound element to a datasource (i.e. a GridView or ComboBox to a SqlDataSource), make sure the datasource is assigned to one of your connection strings.
Post your code (for the databound element and the web.config to be safe) and we can take a look at it.
EDIT: I think the problem is that you are trying to get the Connection String from the AppSettings area, and programmatically that is not where it exists. Try replacing that with ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString
(if ConnectionString is the name of your connection string.)
Partial mocking of a class is also supported via Spy in mockito
List list = new LinkedList();
List spy = spy(list);
//optionally, you can stub out some methods:
when(spy.size()).thenReturn(100);
//using the spy calls real methods
spy.add("one");
spy.add("two");
//size() method was stubbed - 100 is printed
System.out.println(spy.size());
This is how you create a zip file from a source file:
String srcFilename = "C:/myfile.txt";
String zipFile = "C:/myfile.zip";
try {
byte[] buffer = new byte[1024];
FileOutputStream fos = new FileOutputStream(zipFile);
ZipOutputStream zos = new ZipOutputStream(fos);
File srcFile = new File(srcFilename);
FileInputStream fis = new FileInputStream(srcFile);
zos.putNextEntry(new ZipEntry(srcFile.getName()));
int length;
while ((length = fis.read(buffer)) > 0) {
zos.write(buffer, 0, length);
}
zos.closeEntry();
fis.close();
zos.close();
}
catch (IOException ioe) {
System.out.println("Error creating zip file" + ioe);
}
You already have a process bound to the default port (8000). If you already ran the same module before, it is most likely that process still bound to the port. Try and locate the other process first:
$ ps -fA | grep python
501 81651 12648 0 9:53PM ttys000 0:00.16 python -m SimpleHTTPServer
The command arguments are included, so you can spot the one running SimpleHTTPServer
if more than one python
process is active. You may want to test if http://localhost:8000/
still shows a directory listing for local files.
The second number is the process number; stop the server by sending it a signal:
kill 81651
This sends a standard SIGTERM
signal; if the process is unresponsive you may have to resort to tougher methods like sending a SIGKILL
(kill -s KILL <pid>
or kill -9 <pid>
) signal instead. See Wikipedia for more details.
Alternatively, run the server on a different port, by specifying the alternative port on the command line:
$ python -m SimpleHTTPServer 8910
Serving HTTP on 0.0.0.0 port 8910 ...
then access the server as http://localhost:8910
; where 8910
can be any number from 1024 and up, provided the port is not already taken.
var img = new Image();
img.src = sYourFilePath;
var iSize = img.fileSize;
This happens every time you insert/ update and you don't use single quotes. When the variable is empty it will result in that error. Fix it by using ''
Assuming the first parameter is an empty variable here is a simple example:
Wrong
nvl( ,0)
Fix
nvl('' ,0)
Put your query into your database software and check it for that error. Generally this is an easy fix
To install the plugin manually, try:
Slide up/down with alpha animation with a few note
slide_up.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="@integer/activity_transition_time"
>
<translate
android:fromYDelta="100%p"
android:toYDelta="0"/>
<alpha
android:fromAlpha="0.5"
android:toAlpha="1"/>
</set>
slide_down.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="@integer/activity_transition_time"
>
<translate
android:fromYDelta="0"
android:toYDelta="100%p"/>
<alpha
android:fromAlpha="1"
android:toAlpha="0.5"/>
</set>
no_animation.xml
<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="@integer/activity_transition_time"
android:fromYDelta="0"
android:toYDelta="0"/>
First Activity
startActivity(new Intent(this, SecondActivity.class));
overridePendingTransition(R.anim.slide_up, R.anim.no_animation); // remember to put it after startActivity, if you put it to above, animation will not working
// document say if we don't want animation we can put 0. However, if we put 0 instead of R.anim.no_animation, the exist activity will become black when animate
Second Activity
finish();
overridePendingTransition(R.anim.no_animation, R.anim.slide_down);
Done
MORE
I try to make the slide animation like iOS animation when present a View Model (like this https://www.youtube.com/watch?v=deZobvh2064) but failed.
Looking at iOS present animation you will see: The animation from bottom with alpha (about 50%) then it go very fast then slower, the animation time is about > 500ms (I use trim video tools for count the animation time https://www.kapwing.com/trim-video so it can not exactly 100%)
Then I try to apply to android.
To make alpha I use <alpha>
and success.
To make animation start faster than slower I use android:interpolator="a decelerate interpolator"
but it almost failed.
There are 3 default decelerate interpolator
in Android
@android:interpolator/decelerate_quad
-> factor = 1
@android:interpolator/decelerate_cubic
-> factor = 1.5
@android:interpolator/decelerate_quint
_> factor = 2.5
(higher factor <=> animation start more faster from start and more slower at end)
Here is a good tutorial http://cogitolearning.co.uk/2013/10/android-animations-tutorial-5-more-on-interpolators/ for understand it
I tried 3 above I can not achieve like iOS, the animation can not start faster like iOS. Then I create a custom decelerateInterpolator wiht factor = 3 like
<?xml version="1.0" encoding="utf-8"?>
<decelerateInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
android:factor="3" />
and I increase the duration time from 500 -> 750
. It working well (very similar to iOS). However, it only working well in some device, in some device the animation is quite slow. Later on, I know that animation may different on different device (eg: some device will faster and some device will slower) so I can not make it the animation similar in all Android device. Therefore I don't use interpolator
. I don't know if my testing is exactly 100% or not but I hope this experience help
Try this:
var data = jQuery.parseJSON(response);
$.each(data, function(key, item)
{
console.log(item.com);
});
or
var data = $.parseJSON(response);
$(data).each(function(i,val)
{
$.each(val,function(key,val)
{
console.log(key + " : " + val);
});
});
Have a look at SortedList
This class implements a sorted list. It is constructed with a comparator that can compare two objects and sort objects accordingly. When you add an object to the list, it is inserted in the correct place. Object that are equal according to the comparator, will be in the list in the order that they were added to this list. Add only objects that the comparator can compare.
When the list already contains objects that are equal according to the comparator, the new object will be inserted immediately after these other objects.
@paul burke's answer works fine for both camera and gallery pictures for API level 19 and above, but it doesn't work if your Android project's minimum SDK is set to below 19, and some answers referring above doesn't work for both gallery and camera. Well, I have modified @paul burke's code which works for API level below 19. Below is the code.
public static String getPath(final Context context, final Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >=
Build.VERSION_CODES.KITKAT;
Log.i("URI",uri+"");
String result = uri+"";
// DocumentProvider
// if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
if (isKitKat && (result.contains("media.documents"))) {
String[] ary = result.split("/");
int length = ary.length;
String imgary = ary[length-1];
final String[] dat = imgary.split("%3A");
final String docId = dat[1];
final String type = dat[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
}
else if ("video".equals(type)) {
}
else if ("audio".equals(type)) {
}
final String selection = "_id=?";
final String[] selectionArgs = new String[] {
dat[1]
};
return getDataColumn(context, contentUri, selection, selectionArgs);
}
else
if ("content".equalsIgnoreCase(uri.getScheme())) {
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
public static String getDataColumn(Context context, Uri uri, String selection,
String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {
column
};
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
null);
if (cursor != null && cursor.moveToFirst()) {
final int column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_index);
}
}
finally {
if (cursor != null)
cursor.close();
}
return null;
}
For me it worked like I had images in icons
folder under src
and I wrote below code.
new ImageIcon(getClass().getResource("/icons/rsz_measurment_01.png"));
For those who were redirected here from Passing variable number of arguments from one function to another (which should not be marked as a duplicate of this question):
If you're trying to pass a variable number of arguments from one function to another, since JavaScript 1.8.5 you can simply call apply()
on the second function and pass in the arguments
parameter:
var caller = function()
{
callee.apply( null, arguments );
}
var callee = function()
{
alert( arguments.length );
}
caller( "Hello", "World!", 88 ); // Shows "3".
Note: The first argument is the this
parameter to use. Passing null
will call the function from the global context, i.e. as a global function instead of the method of some object.
According to this document, the ECMAScript 5 specification redefined the apply()
method to take any "generic array-like object", instead of strictly an Array. Thus, you can directly pass the arguments
list into the second function.
Tested in Chrome 28.0, Safari 6.0.5, and IE 10. Try it out with this JSFiddle.
After a lot of try, I could reset the default password with the following commands (Ubuntu and derivatives):
sudo -i
mkdir -p /var/run/mysqld
chown mysql:mysql /var/run/mysqld
/etc/init.d/mysql stop
mysqld_safe --skip-grant-tables &
mysql -uroot
use mysql;
update user set authentication_string=password('YOURPASSWORD') where user='root';
update user set plugin="mysql_native_password" where User='root';
flush privileges;
quit;
sudo /etc/init.d/mysql stop
sudo /etc/init.d/mysql start
Sometimes, even after typed in the terminal
mkdir -p /var/run/mysqld
chown mysql:mysql /var/run/mysqld
/etc/init.d/mysql stop
mysqld_safe --skip-grant-tables &
I got the error that the mysqld don't exists. So, quit, and type the same commands again.
And the final command
sudo /etc/init.d/mysql start
Sometimes doesn't work. Only after restart the computer.
As stated. Gradients aren't currently supported with CSS Transitions. But you could work around it in some cases by setting one of the colors to transparent, so that the background-color of some other wrapping element shines through, and transition that instead.
create simple method to do that for you:
public void addMulti(String[] strings,List list){
for (int i = 0; i < strings.length; i++) {
list.add(strings[i]);
}
}
Then you can create
String[] wrong ={"1","2","3","4","5","6"};
and add it with this method to your list.
like this:
var foo = 45;
var bar = '' + foo;
Actually, even though I typically do it like this for simple convenience, over 1,000s of iterations it appears for raw speed there is an advantage for .toString()
See Performance tests here (not by me, but found when I went to write my own): http://jsben.ch/#/ghQYR
Fastest based on the JSPerf test above: str = num.toString();
It should be noted that the difference in speed is not overly significant when you consider that it can do the conversion any way 1 Million times in 0.1 seconds.
Update: The speed seems to differ greatly by browser. In Chrome num + ''
seems to be fastest based on this test http://jsben.ch/#/ghQYR
Update 2: Again based on my test above it should be noted that Firefox 20.0.1 executes the .toString()
about 100 times slower than the '' + num
sample.
<=
is just like you would "read" it: 'less than or equals'. So it's a mathematical operator, in the list of <
(is less than?), >
(is greater than?), ==
(equals?), !=
(is not equal?), <=
(is less than or equal?), and >=
(is greater than or equal?).
This must not be confused with =>
which is kind of a double right-hand arrow, used to separate the argument list from the body of a function and to separate the testing condition in pattern matching (a case
block) from the body executed when a match occurs. You can see example of this in my previous two answers. First, the function use:
coll.map(tup => tup._2.reverse)
which is already abbreviated as the types are omitted. The follow function would be
// function arguments function body
(tup: Tuple2[Int, String]) => tup._2.reverse
and the pattern matching use:
def extract2(l: List[Int]) = l match {
// if l matches Nil return "empty"
case Nil => "empty"
// etc.
case ::(head, Nil) => "exactly one element (" + head + ")"
// etc.
case ::(head, tail) => "more than one element"
}
Here is my adaptation of Michael Soriano's tutorial. See below or in JSBin.
$(function() {_x000D_
var theImage = $('ul#ss li img');_x000D_
var theWidth = theImage.width();_x000D_
//wrap into mother div_x000D_
$('ul#ss').wrap('<div id="mother" />');_x000D_
//assign height width and overflow hidden to mother_x000D_
$('#mother').css({_x000D_
width: function() {_x000D_
return theWidth;_x000D_
},_x000D_
height: function() {_x000D_
return theImage.height();_x000D_
},_x000D_
position: 'relative',_x000D_
overflow: 'hidden'_x000D_
});_x000D_
//get total of image sizes and set as width for ul _x000D_
var totalWidth = theImage.length * theWidth;_x000D_
$('ul').css({_x000D_
width: function() {_x000D_
return totalWidth;_x000D_
}_x000D_
});_x000D_
_x000D_
var ss_timer = setInterval(function() {_x000D_
ss_next();_x000D_
}, 3000);_x000D_
_x000D_
function ss_next() {_x000D_
var a = $(".active");_x000D_
a.removeClass('active');_x000D_
_x000D_
if (a.hasClass('last')) {_x000D_
//last element -- loop_x000D_
a.parent('ul').animate({_x000D_
"margin-left": (0)_x000D_
}, 1000);_x000D_
a.siblings(":first").addClass('active');_x000D_
} else {_x000D_
a.parent('ul').animate({_x000D_
"margin-left": (-(a.index() + 1) * theWidth)_x000D_
}, 1000);_x000D_
a.next().addClass('active');_x000D_
}_x000D_
}_x000D_
_x000D_
// Cancel slideshow and move next manually on click_x000D_
$('ul#ss li img').on('click', function() {_x000D_
clearInterval(ss_timer);_x000D_
ss_next();_x000D_
});_x000D_
_x000D_
});
_x000D_
* {_x000D_
margin: 0;_x000D_
padding: 0;_x000D_
}_x000D_
#ss {_x000D_
list-style: none;_x000D_
}_x000D_
#ss li {_x000D_
float: left;_x000D_
}_x000D_
#ss img {_x000D_
width: 200px;_x000D_
height: 100px;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>_x000D_
<ul id="ss">_x000D_
<li class="active">_x000D_
<img src="http://leemark.github.io/better-simple-slideshow/demo/img/colorado-colors.jpg">_x000D_
</li>_x000D_
<li>_x000D_
<img src="http://leemark.github.io/better-simple-slideshow/demo/img/monte-vista.jpg">_x000D_
</li>_x000D_
<li class="last">_x000D_
<img src="http://leemark.github.io/better-simple-slideshow/demo/img/colorado.jpg">_x000D_
</li>_x000D_
</ul>
_x000D_
I deleted and re-installed the Android SDK Platform-Tools 23 23.0.0. This solved the problem. Yesterday i had done a complete update of the SDK using SDK Manager, deleting some parts that i believed i no longer needed and downloading updates. Perhaps this was the source of the problem.
array1.NonIntersect(array2);
Nonintersect such operator is not present in Linq you should do
except -> union -> except
a.except(b).union(b.Except(a));
final ListView lv = (ListView) findViewById(R.id.ListView01);
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> myAdapter, View myView, int myItemInt, long mylng) {
String selectedFromList =(String) (lv.getItemAtPosition(myItemInt));
}
});
I hope this fixes your problem.
In a generic Markdown document, use:
<style>body {text-align: right}</style>
or
<style>body {text-align: justify}</style>
Does not seem to work with Jupyter though.
If you have data already present in both the tables and you want to update a table column values based on some condition then use this
UPDATE Table1 set Name=(select t2.Name from Table2 t2 where t2.id=Table1.id)
Correct on all fronts. Outside of a character class (that's what the "square brackets" are called) the hyphen has no special meaning, and within a character class, you can place a hyphen as the first or last character in the range (e.g. [-a-z]
or [0-9-]
), OR escape it (e.g. [a-z\-0-9]
) in order to add "hyphen" to your class.
It's more common to find a hyphen placed first or last within a character class, but by no means will you be lynched by hordes of furious neckbeards for choosing to escape it instead.
(Actually... my experience has been that a lot of regex is employed by folks who don't fully grok the syntax. In these cases, you'll typically see everything escaped (e.g. [a-z\%\$\#\@\!\-\_]
) simply because the engineer doesn't know what's "special" and what's not... so they "play it safe" and obfuscate the expression with loads of excessive backslashes. You'll be doing yourself, your contemporaries, and your posterity a huge favor by taking the time to really understand regex syntax before using it.)
Great question!
plot(t)
is in this case the same as
plot(t[[1]], t[[2]])
As the error message says, x and y differ in length and that is because you plot a list with length 4 against 1
:
> length(t)
[1] 4
> length(1)
[1] 1
In your second example you plot a list with elements named x
and y
, both vectors of length 2,
so plot
plots these two vectors.
Edit:
If you want to plot lines use
plot(t, type="l")
I will answer the question especially about ArrayList as an example in order to help you understand better..
public interface Iterable { ... abstract Iterator<T> iterator(); //Returns an 'Iterator'(not iterator) over elements of type T. ... }
public interface Iterator { ... abstract boolean hasNext(); //Returns true if the iteration has more elements. abstract E next(); //Returns the next element in the iteration. ... }
'Iterable <- Collection <- List <- ArrayList'
. And Iterable, Collection and List just declare abstract method 'iterator()' and ArrayList alone implements it.
'iterator()' method returns an object of class 'Itr' which implements 'Iterator'.
public class ArrayList<E> ... implements List<E>, ... { ... public Iterator<E> iterator() { return new Itr(); } private class Itr implements Iterator<E> { ... public boolean hasNext() { return cursor != size; } @SuppressWarnings("unchecked") public E next() { checkForComodification(); int i = cursor; if (i >= size) throw new NoSuchElementException(); Object[] elementData = ArrayList.this.elementData; if (i >= elementData.length) throw new ConcurrentModificationException(); cursor = i + 1; return (E) elementData[lastRet = i]; } ... } }
Here is a simple example.
public static void main(String[] args) {
List<String> list = new ArrayList<>();
list.add("a");
list.add("b");
list.add("c");
list.add("d");
list.add("e");
list.add("f");
Iterator<String> iterator = list.iterator();
while (iterator.hasNext()) {
String string = iterator.next();
System.out.println(string);
}
}
Now, is it clear? :)
A somewhat clumsy ascii-art to demonstrate the mechanism:
The join()
is presumably called by the main-thread. It could also be called by another thread, but would needlessly complicate the diagram.
join
-calling should be placed in the track of the main-thread, but to express thread-relation and keep it as simple as possible, I choose to place it in the child-thread instead.
without join:
+---+---+------------------ main-thread
| |
| +........... child-thread(short)
+.................................. child-thread(long)
with join
+---+---+------------------***********+### main-thread
| | |
| +...........join() | child-thread(short)
+......................join()...... child-thread(long)
with join and daemon thread
+-+--+---+------------------***********+### parent-thread
| | | |
| | +...........join() | child-thread(short)
| +......................join()...... child-thread(long)
+,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, child-thread(long + daemonized)
'-' main-thread/parent-thread/main-program execution
'.' child-thread execution
'#' optional parent-thread execution after join()-blocked parent-thread could
continue
'*' main-thread 'sleeping' in join-method, waiting for child-thread to finish
',' daemonized thread - 'ignores' lifetime of other threads;
terminates when main-programs exits; is normally meant for
join-independent tasks
So the reason you don't see any changes is because your main-thread does nothing after your join
.
You could say join
is (only) relevant for the execution-flow of the main-thread.
If, for example, you want to concurrently download a bunch of pages to concatenate them into a single large page, you may start concurrent downloads using threads, but need to wait until the last page/thread is finished before you start assembling a single page out of many. That's when you use join()
.
Check out Swing Dialogs (mainly focused on JOptionPane, as mentioned by @mcfinnigan).
For me my forked branch was not in sync with the master branch. So I went to bitbucket and synced and merged my forked branch and then tried to take the pull. Then it worked fine.
Wait, are you really needing to render it using javascript?
Be aware that in HTML5 there is srcdoc
, which can do that for you! (The drawback is that IE/EDGE does not support it yet https://caniuse.com/#feat=iframe-srcdoc)
See here [srcdoc
]: https://www.w3schools.com/tags/att_iframe_srcdoc.asp
Another thing to note is that if you want to avoid the interference of the js code inside and outside you should consider using the sandbox
mode.
See here [sandbox
]: https://www.w3schools.com/tags/att_iframe_sandbox.asp
It's very easy.
"your chrome path" -kiosk -fullscreen "your URL"
Example:
"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" -kiosk -fullscreen http://google.com
Close all Chrome sessions first !
To exit: Press ALT-TAB > hold ALT and press X in the windows task. (win10)
Assuming that you're looking for "numbers that start with 7" rather than "strings that start with 7," maybe something like
select * from books where convert(char(32), book_id) like '7%'
Or whatever the Postgres equivalent of convert is.
+=
adds another value with the variable's value and assigns the new value to the variable.
>>> x = 3
>>> x += 2
>>> print x
5
-=
, *=
, /=
does similar for subtraction, multiplication and division.
Try this function...
function calculate_age(birth_month,birth_day,birth_year)
{
today_date = new Date();
today_year = today_date.getFullYear();
today_month = today_date.getMonth();
today_day = today_date.getDate();
age = today_year - birth_year;
if ( today_month < (birth_month - 1))
{
age--;
}
if (((birth_month - 1) == today_month) && (today_day < birth_day))
{
age--;
}
return age;
}
OR
function getAge(dateString)
{
var today = new Date();
var birthDate = new Date(dateString);
var age = today.getFullYear() - birthDate.getFullYear();
var m = today.getMonth() - birthDate.getMonth();
if (m < 0 || (m === 0 && today.getDate() < birthDate.getDate()))
{
age--;
}
return age;
}
directory
is neither an existing file nor directory. As it turns out, the real name is directory.1
as revealed by ls -la $HOME/Desktop/
.
The complete working command is
cp -R $HOME/directory.1/file.bundle /library/application\ support/directory/
with the -R
parameter for recursive copy (compulsory for copying directories).
The easiest way is to use eval
as in:
>>> eval("2 + 2")
4
Pay attention to the fact I included spaces in the string. eval
will execute a string as if it was a Python code, so if you want the input to be in a syntax other than Python, you should parse the string yourself and calculate, for example eval("2x7")
would not give you 14 because Python uses *
for multiplication operator rather than x
.
The mock
module is basically made for that.
import mock
obj = mock.Mock()
obj.a = 5
I ran into this problem today and wanted to share my solution. In my case, the solution was to delete the Child items before getting the Parent from the database.
Previously I was doing it like in the code below. I will then get the same error listed in this question.
var Parent = GetParent(parentId);
var children = Parent.Children;
foreach (var c in children )
{
Context.Children.Remove(c);
}
Context.SaveChanges();
What worked for me, is to get the children items first, using the parentId (foreign key) and then delete those items. Then I can get the Parent from the database and at that point, it should not have any children items anymore and I can add new children items.
var children = GetChildren(parentId);
foreach (var c in children )
{
Context.Children.Remove(c);
}
Context.SaveChanges();
var Parent = GetParent(parentId);
Parent.Children = //assign new entities/items here
And to complement Rich's recursive answer, a non-recursive method.
Public Sub NonRecursiveMethod()
Dim fso, oFolder, oSubfolder, oFile, queue As Collection
Set fso = CreateObject("Scripting.FileSystemObject")
Set queue = New Collection
queue.Add fso.GetFolder("your folder path variable") 'obviously replace
Do While queue.Count > 0
Set oFolder = queue(1)
queue.Remove 1 'dequeue
'...insert any folder processing code here...
For Each oSubfolder In oFolder.SubFolders
queue.Add oSubfolder 'enqueue
Next oSubfolder
For Each oFile In oFolder.Files
'...insert any file processing code here...
Next oFile
Loop
End Sub
You can use a queue for FIFO behaviour (shown above), or you can use a stack for LIFO behaviour which would process in the same order as a recursive approach (replace Set oFolder = queue(1)
with Set oFolder = queue(queue.Count)
and replace queue.Remove(1)
with queue.Remove(queue.Count)
, and probably rename the variable...)
First of all, the naming convention in Kotlin for constants is the same than in java (e.g : MY_CONST_IN_UPPERCASE).
You just have to put your const outside your class declaration.
Two possibilities : Declare your const in your class file (your const have a clear relation with your class)
private const val CONST_USED_BY_MY_CLASS = 1
class MyClass {
// I can use my const in my class body
}
Create a dedicated constants.kt file where to store those global const (Here you want to use your const widely across your project) :
package com.project.constants
const val URL_PATH = "https:/"
Then you just have to import it where you need it :
import com.project.constants
MyClass {
private fun foo() {
val url = URL_PATH
System.out.print(url) // https://
}
}
This is much less cleaner because under the hood, when bytecode is generated, a useless object is created :
MyClass {
companion object {
private const val URL_PATH = "https://"
const val PUBLIC_URL_PATH = "https://public" // Accessible in other project files via MyClass.PUBLIC_URL_PATH
}
}
Even worse if you declare it as a val instead of a const (compiler will generate a useless object + a useless function) :
MyClass {
companion object {
val URL_PATH = "https://"
}
}
In kotlin, const can just hold primitive types. If you want to pass a function to it, you need add the @JvmField annotation. At compile time, it will be transform as a public static final variable. But it's slower than with a primitive type. Try to avoid it.
@JvmField val foo = Foo()
Simple and linear:
<p> my phrase is this..<br>
the other line is this<br>
the end is this other phrase..
</p>
In file php.ini this line:
extension=mysqli
Replace by:
extension="C:\php\ext\php_mysqli.dll"
Instead of using ->bindParam()
you can pass the data only at the time of ->execute()
:
$data = [ ':item_name' => $_POST['item_name'], ':item_type' => $_POST['item_type'], ':item_price' => $_POST['item_price'], ':item_description' => $_POST['item_description'], ':image_location' => 'images/'.$_FILES['file']['name'], ':status' => 0, ':id' => 0, ]; $stmt->execute($data);
In this way you would know exactly what values are going to be sent.
I used this article to allow to c# to access to a sharepoint site.
http://www.thesharepointguide.com/access-office-365-using-a-console-application/
Basically you create a ClientId and ClientSecret keys to access to the site with c#
Hope this can help you!
When I'm teaching someone programming (just about any language) I introduce for
loops with terminology similar to this code example:
for eachItem in someList:
doSomething(eachItem)
... which, conveniently enough, is syntactically valid Python code.
The Python range()
function simply returns or generates a list of integers from some lower bound (zero, by default) up to (but not including) some upper bound, possibly in increments (steps) of some other number (one, by default).
So range(5)
returns (or possibly generates) a sequence: 0, 1, 2, 3, 4 (up to but not including the upper bound).
A call to range(2,10)
would return: 2, 3, 4, 5, 6, 7, 8, 9
A call to range(2,12,3)
would return: 2, 5, 8, 11
Notice that I said, a couple times, that Python's range()
function returns or generates a sequence. This is a relatively advanced distinction which usually won't be an issue for a novice. In older versions of Python range()
built a list (allocated memory for it and populated with with values) and returned a reference to that list. This could be inefficient for large ranges which might consume quite a bit of memory and for some situations where you might want to iterate over some potentially large range of numbers but were likely to "break
" out of the loop early (after finding some particular item in which you were interested, for example).
Python supports more efficient ways of implementing the same semantics (of doing the same thing) through a programming construct called a generator. Instead of allocating and populating the entire list and return it as a static data structure, Python can instantiate an object with the requisite information (upper and lower bounds and step/increment value) ... and return a reference to that.
The (code) object then keeps track of which number it returned most recently and computes the new values until it hits the upper bound (and which point it signals the end of the sequence to the caller using an exception called "StopIteration"). This technique (computing values dynamically rather than all at once, up-front) is referred to as "lazy evaluation."
Other constructs in the language (such as those underlying the for
loop) can then work with that object (iterate through it) as though it were a list.
For most cases you don't have to know whether your version of Python is using the old implementation of range()
or the newer one based on generators. You can just use it and be happy.
If you're working with ranges of millions of items, or creating thousands of different ranges of thousands each, then you might notice a performance penalty for using range()
on an old version of Python. In such cases you could re-think your design and use while
loops, or create objects which implement the "lazy evaluation" semantics of a generator, or use the xrange()
version of range()
if your version of Python includes it, or the range()
function from a version of Python that uses the generators implicitly.
Concepts such as generators, and more general forms of lazy evaluation, permeate Python programming as you go beyond the basics. They are usually things you don't have to know for simple programming tasks but which become significant as you try to work with larger data sets or within tighter constraints (time/performance or memory bounds, for example).
[Update: for Python3 (the currently maintained versions of Python) the range()
function always returns the dynamic, "lazy evaluation" iterator; the older versions of Python (2.x) which returned a statically allocated list of integers are now officially obsolete (after years of having been deprecated)].
you can use a magic square http://mathworld.wolfram.com/MagicSquare.html if any row, column, or diag adds up to 15 then a player has won.
I found the following summary very useful: http://www.techrepublic.com/article/configure-vi-for-java-application-development/5054618. The description of :make was for ant not maven, but otherwise a nice summary.