There is a big difference between static functions in C and static member functions in C++. In C, a static function is not visible outside of its translation unit, which is the object file it is compiled into. In other words, making a function static limits its scope. You can think of a static function as being "private" to its *.c file (although that is not strictly correct).
In C++, "static" can also apply to member functions and data members of classes. A static data member is also called a "class variable", while a non-static data member is an "instance variable". This is Smalltalk terminology. This means that there is only one copy of a static data member shared by all objects of a class, while each object has its own copy of a non-static data member. So a static data member is essentially a global variable, that is a member of a class.
Non-static member functions can access all data members of the class: static and non-static. Static member functions can only operate on the static data members.
One way to think about this is that in C++ static data members and static member functions do not belong to any object, but to the entire class.
The problem is that the base class foo
has no parameterless constructor. So you must call constructor of the base class with parameters from constructor of the derived class:
public bar(int a, int b) : base(a, b)
{
c = a * b;
}
You can use $addToSet with the aggregation framework to count distinct objects.
For example:
db.collectionName.aggregate([{
$group: {_id: null, uniqueValues: {$addToSet: "$fieldName"}}
}])
As @Clarke said, you can use java.io.FilenameFilter
to filter the file by specific condition.
As a complementary, I'd like to show how to use java.io.FilenameFilter
to search file in current directory and its subdirectory.
The common methods getTargetFiles and printFiles are used to search files and print them.
public class SearchFiles {
//It's used in dfs
private Map<String, Boolean> map = new HashMap<String, Boolean>();
private File root;
public SearchFiles(File root){
this.root = root;
}
/**
* List eligible files on current path
* @param directory
* The directory to be searched
* @return
* Eligible files
*/
private String[] getTargetFiles(File directory){
if(directory == null){
return null;
}
String[] files = directory.list(new FilenameFilter(){
@Override
public boolean accept(File dir, String name) {
// TODO Auto-generated method stub
return name.startsWith("Temp") && name.endsWith(".txt");
}
});
return files;
}
/**
* Print all eligible files
*/
private void printFiles(String[] targets){
for(String target: targets){
System.out.println(target);
}
}
}
I will demo how to use recursive, bfs and dfs to get the job done.
Recursive:
/**
* How many files in the parent directory and its subdirectory <br>
* depends on how many files in each subdirectory and their subdirectory
*/
private void recursive(File path){
printFiles(getTargetFiles(path));
for(File file: path.listFiles()){
if(file.isDirectory()){
recursive(file);
}
}
if(path.isDirectory()){
printFiles(getTargetFiles(path));
}
}
public static void main(String args[]){
SearchFiles searcher = new SearchFiles(new File("C:\\example"));
searcher.recursive(searcher.root);
}
Breadth First Search:
/**
* Search the node's neighbors firstly before moving to the next level neighbors
*/
private void bfs(){
if(root == null){
return;
}
Queue<File> queue = new LinkedList<File>();
queue.add(root);
while(!queue.isEmpty()){
File node = queue.remove();
printFiles(getTargetFiles(node));
File[] childs = node.listFiles(new FileFilter(){
@Override
public boolean accept(File pathname) {
// TODO Auto-generated method stub
if(pathname.isDirectory())
return true;
return false;
}
});
if(childs != null){
for(File child: childs){
queue.add(child);
}
}
}
}
public static void main(String args[]){
SearchFiles searcher = new SearchFiles(new File("C:\\example"));
searcher.bfs();
}
Depth First Search:
/**
* Search as far as possible along each branch before backtracking
*/
private void dfs(){
if(root == null){
return;
}
Stack<File> stack = new Stack<File>();
stack.push(root);
map.put(root.getAbsolutePath(), true);
while(!stack.isEmpty()){
File node = stack.peek();
File child = getUnvisitedChild(node);
if(child != null){
stack.push(child);
printFiles(getTargetFiles(child));
map.put(child.getAbsolutePath(), true);
}else{
stack.pop();
}
}
}
/**
* Get unvisited node of the node
*
*/
private File getUnvisitedChild(File node){
File[] childs = node.listFiles(new FileFilter(){
@Override
public boolean accept(File pathname) {
// TODO Auto-generated method stub
if(pathname.isDirectory())
return true;
return false;
}
});
if(childs == null){
return null;
}
for(File child: childs){
if(map.containsKey(child.getAbsolutePath()) == false){
map.put(child.getAbsolutePath(), false);
}
if(map.get(child.getAbsolutePath()) == false){
return child;
}
}
return null;
}
public static void main(String args[]){
SearchFiles searcher = new SearchFiles(new File("C:\\example"));
searcher.dfs();
}
So much for this simple question, but I just wanted to highlight a new feature in Java which will avoid all confusions around indexing in arrays even for beginners. Java-8 has abstracted the task of iterating for you.
int[] array = new int[5];
//If you need just the items
Arrays.stream(array).forEach(item -> { println(item); });
//If you need the index as well
IntStream.range(0, array.length).forEach(index -> { println(array[index]); })
What's the benefit? Well, one thing is the readability like English. Second, you need not worry about the ArrayIndexOutOfBoundsException
As Martin York mentioned, exit doesn't perform necessary clean-up like return does.
It's always better to use return in the place of exit. In case if you are not in main, wherever you would like to exit the program, return to main first.
Consider the below example. With the following program, a file will be created with the content mentioned. But if return is commented & uncommented exit(0), the compiler doesn't assure you that the file will have the required text.
int main()
{
ofstream os("out.txt");
os << "Hello, Can you see me!\n";
return(0);
//exit(0);
}
Not just this, Having multiple exit points in a program will make debugging harder. Use exit only when it can be justified.
You can iterate through JavaScript objects this way:
for(var attributename in myobject){
console.log(attributename+": "+myobject[attributename]);
}
myobject could be your json.data
Servlet-mapping has two child tags, url-pattern and servlet-name. url-pattern specifies the type of urls for which, the servlet given in servlet-name should be called. Be aware that, the container will use case-sensitive for string comparisons for servlet matching.
First specification of url-pattern
a web.xml
file for the server context on the servlet container at server .com matches the pattern in <url-pattern>/status/*</url-pattern>
as follows:
http://server.com/server/status/synopsis = Matches
http://server.com/server/status/complete?date=today = Matches
http://server.com/server/status = Matches
http://server.com/server/server1/status = Does not match
Second specification of url-pattern
A context located at the path /examples on the Agent at example.com matches the pattern in <url-pattern>*.map</url-pattern>
as follows:
http://server.com/server/US/Oregon/Portland.map = Matches
http://server.com/server/US/server/Seattle.map = Matches
http://server.com/server/Paris.France.map = Matches
http://server.com/server/US/Oregon/Portland.MAP = Does not match, the extension is uppercase
http://example.com/examples/interface/description/mail.mapi =Does not match, the extension is mapi rather than map`
Third specification of url-mapping
,A mapping that contains the pattern <url-pattern>/</url-pattern>
matches a request if no other pattern matches. This is the default mapping. The servlet mapped to this pattern is called the default servlet.
The default mapping is often directed to the first page of an application. Explicitly providing a default mapping also ensures that malformed URL requests into the application return are handled by the application rather than returning an error.
The servlet-mapping element below maps the server
servlet instance to the default mapping.
<servlet-mapping>
<servlet-name>server</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
For the context that contains this element, any request that is not handled by another mapping is forwarded to the server
servlet.
And Most importantly we should Know about Rule for URL path mapping
Reference URL Pattern
You forgot to install the gulp-cli package:
npm install -g gulp-cli
Then you can run the command "gulp" from the command line.
I think you are trying to configure your service in a similar way to the following config. There is more information here: Specify a Service with Two Endpoints Using Different Binding Values. Also, other than for development, it's probably not a good idea to have both HTTP & HTTPS endpoints to the same service. It kinda defeats the purpose of HTTPS. Hope this helps!
<service type="HelloWorld, IndigoConfig, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null">
<endpoint
address="http://computer:8080/Hello"
contract="HelloWorld, IndigoConfig, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null"
binding="basicHttpBinding"
bindingConfiguration="shortTimeout"
</endpoint>
<endpoint
address="http://computer:8080/Hello"
contract="HelloWorld, IndigoConfig, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null"
binding="basicHttpBinding"
bindingConfiguration="Secure"
</endpoint>
</service>
<bindings>
<basicHttpBinding
name="shortTimeout"
timeout="00:00:00:01"
/>
<basicHttpBinding
name="Secure">
<Security mode="Transport" />
</basicHttpBinding>
</bindings>
A div is a block element, and will span the width of the container unless a width is set. A span is an inline element, and will have the width of the text inside it. Currently, you are trying to set align as a CSS property. Align is an attribute.
<span align="center" style="border:1px solid red;">
This is some text in a div element!
</span>
However, the align attribute is deprecated. You should use the CSS text-align
property on the container.
<div style="text-align: center;">
<span style="border:1px solid red;">
This is some text in a div element!
</span>
</div>
I'm successfully using the following to update options dynamically:
$control.select2('destroy').empty().select2({data: [{id: 1, text: 'new text'}]});
If you are using Nodemon my guess is the PORT 3000 is set in the nodemonConfig. Check if that is the case.
UCanAccess is a pure Java JDBC driver that allows us to read from and write to Access databases without using ODBC. It uses two other packages, Jackcess and HSQLDB, to perform these tasks. The following is a brief overview of how to get it set up.
If your project uses Maven you can simply include UCanAccess via the following coordinates:
groupId: net.sf.ucanaccess
artifactId: ucanaccess
The following is an excerpt from pom.xml
, you may need to update the <version>
to get the most recent release:
<dependencies>
<dependency>
<groupId>net.sf.ucanaccess</groupId>
<artifactId>ucanaccess</artifactId>
<version>4.0.4</version>
</dependency>
</dependencies>
As mentioned above, UCanAccess requires Jackcess and HSQLDB. Jackcess in turn has its own dependencies. So to use UCanAccess you will need to include the following components:
UCanAccess (ucanaccess-x.x.x.jar)
HSQLDB (hsqldb.jar, version 2.2.5 or newer)
Jackcess (jackcess-2.x.x.jar)
commons-lang (commons-lang-2.6.jar, or newer 2.x version)
commons-logging (commons-logging-1.1.1.jar, or newer 1.x version)
Fortunately, UCanAccess includes all of the required JAR files in its distribution file. When you unzip it you will see something like
ucanaccess-4.0.1.jar
/lib/
commons-lang-2.6.jar
commons-logging-1.1.1.jar
hsqldb.jar
jackcess-2.1.6.jar
All you need to do is add all five (5) JARs to your project.
NOTE: Do not add
loader/ucanload.jar
to your build path if you are adding the other five (5) JAR files. TheUcanloadDriver
class is only used in special circumstances and requires a different setup. See the related answer here for details.
Eclipse: Right-click the project in Package Explorer and choose Build Path > Configure Build Path...
. Click the "Add External JARs..." button to add each of the five (5) JARs. When you are finished your Java Build Path should look something like this
NetBeans: Expand the tree view for your project, right-click the "Libraries" folder and choose "Add JAR/Folder...", then browse to the JAR file.
After adding all five (5) JAR files the "Libraries" folder should look something like this:
IntelliJ IDEA: Choose File > Project Structure...
from the main menu. In the "Libraries" pane click the "Add" (+
) button and add the five (5) JAR files. Once that is done the project should look something like this:
Now "U Can Access" data in .accdb and .mdb files using code like this
// assumes...
// import java.sql.*;
Connection conn=DriverManager.getConnection(
"jdbc:ucanaccess://C:/__tmp/test/zzz.accdb");
Statement s = conn.createStatement();
ResultSet rs = s.executeQuery("SELECT [LastName] FROM [Clients]");
while (rs.next()) {
System.out.println(rs.getString(1));
}
At the time of writing this Q&A I had no involvement in or affiliation with the UCanAccess project; I just used it. I have since become a contributor to the project.
The quick possible answer: When you first successfully clone an empty git repository, the origin has no master branch. So the first time you have a commit to push you must do:
git push origin master
Which will create this new master branch for you. Little things like this are very confusing with git.
If this didn't fix your issue then it's probably a gitolite-related issue:
Your conf file looks strange. There should have been an example conf file that came with your gitolite. Mine looks like this:
repo phonegap
RW+ = myusername otherusername
repo gitolite-admin
RW+ = myusername
Please make sure you're setting your conf file correctly.
Gitolite actually replaces the gitolite user's account with a modified shell that doesn't accept interactive terminal sessions. You can see if gitolite is working by trying to ssh into your box using the gitolite user account. If it knows who you are it will say something like "Hi XYZ, you have access to the following repositories: X, Y, Z" and then close the connection. If it doesn't know you, it will just close the connection.
Lastly, after your first git push failed on your local machine you should never resort to creating the repo manually on the server. We need to know why your git push failed initially. You can cause yourself and gitolite more confusion when you don't use gitolite exclusively once you've set it up.
Try to handler 'mousewheel' event on all nodes except one
$('body').on({
'mousewheel': function(e) {
if (e.target.id == 'el') return;
e.preventDefault();
e.stopPropagation();
}
})
The problem may be with jquery selector you've chosen
$("video")
is not a selector
The right selector may be putting an id element for video tag i.e.
Let's say your video element looks like this:
<video id="vid1" width="480" height="267" oster="example.jpg" durationHint="33">
<source src="video1.ogv" />
<source src="video2.ogv" />
</video>
Then you can select it via $("#vid1")
with hash mark (#), id selector in jquery.
If a video element is exposed in function,then you have access to HtmlVideoElement (HtmlMediaElement).This elements has control over video element,in your case you can use pause()
method for your video element.
Check reference for VideoElement here.
Also check that there is a fallback reference here.
getResources().getDrawable()
was deprecated in API level 22. Now we must add the theme:getDrawable (int id, Resources.Theme theme) (Added in API level 21)
This is an example:
myImgView.setImageDrawable(getResources().getDrawable(R.drawable.myimage, getApplicationContext().getTheme()));
This is an example how to validate for later versions:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { //>= API 21
myImgView.setImageDrawable(getResources().getDrawable(R.drawable.myimage, getApplicationContext().getTheme()));
} else {
myImgView.setImageDrawable(getResources().getDrawable(R.drawable.myimage));
}
there are many options that would change the height of an input box. padding, font-size, height would all do this. different combinations of these produce taller input boxes with different styles. I suggest just changing the font-size (and font-family for looks) and add some padding to make it even taller and also more appealing. I will give you an example of all three style though:
#signin input {
font-size:20px;
}
OR
#signin input {
padding:10px;
}
OR
#signin input {
height:24px;
}
This is the combination of the three that I recommend:
#signin input {
font-size:20px;font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-weight: 300;
padding:10px;
}
You could create a user form:
columns by index:
# selected column index: 1, 6, 7
new = old.iloc[: , [1, 6, 7]].copy()
public boolean onKeyDown(int keycode, KeyEvent event) {
if (keycode == KeyEvent.KEYCODE_BACK) {
moveTaskToBack(true);
}
return super.onKeyDown(keycode, event);
}
My app closed with above code.
I was recomending the use of Set but sorry this doesn't work for ng-repeat, nor Map since ng-repeat only works with array. So ignore this answer. anyways if you need to filter out duplicates one way is as other has said using angular filters
, here is the link for it to the getting started section.
Yo can use the ECMAScript 2015 (ES6) standard Set Data structure, instead of an Array Data Structure this way you filter repeated values when adding to the Set. (Remember sets don't allow repeated values). Really easy to use:
var mySet = new Set();
mySet.add(1);
mySet.add(5);
mySet.add("some text");
var o = {a: 1, b: 2};
mySet.add(o);
mySet.has(1); // true
mySet.has(3); // false, 3 has not been added to the set
mySet.has(5); // true
mySet.has(Math.sqrt(25)); // true
mySet.has("Some Text".toLowerCase()); // true
mySet.has(o); // true
mySet.size; // 4
mySet.delete(5); // removes 5 from the set
mySet.has(5); // false, 5 has been removed
mySet.size; // 3, we just removed one value
The application that I was working on, stored the name of react components as a widget configuration in the browser storage. Some of these components got deleted and the app was still trying to render them. By clearing the browser cache, I was able to resolve my issue.
Above methods of date parsing are nice , i just added new check in existing methods that double check the converted date with original date using formater, so it works for almost each case as i verified. e.g. 02/29/2013 is invalid date. Given function parse the date according to current acceptable date formats. It returns true if date is not parsed successfully.
public final boolean validateDateFormat(final String date) {
String[] formatStrings = {"MM/dd/yyyy"};
boolean isInvalidFormat = false;
Date dateObj;
for (String formatString : formatStrings) {
try {
SimpleDateFormat sdf = (SimpleDateFormat) DateFormat.getDateInstance();
sdf.applyPattern(formatString);
sdf.setLenient(false);
dateObj = sdf.parse(date);
System.out.println(dateObj);
if (date.equals(sdf.format(dateObj))) {
isInvalidFormat = false;
break;
}
} catch (ParseException e) {
isInvalidFormat = true;
}
}
return isInvalidFormat;
}
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.UUID;
import android.content.Context;
public class Util {
// ===========================================================
//
// ===========================================================
private static final String INSTALLATION = "INSTALLATION";
public synchronized static boolean isFirstLaunch(Context context) {
String sID = null;
boolean launchFlag = false;
if (sID == null) {
File installation = new File(context.getFilesDir(), INSTALLATION);
try {
if (!installation.exists()) {
launchFlag = true;
writeInstallationFile(installation);
}
sID = readInstallationFile(installation);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
return launchFlag;
}
private static String readInstallationFile(File installation) throws IOException {
RandomAccessFile f = new RandomAccessFile(installation, "r");// read only mode
byte[] bytes = new byte[(int) f.length()];
f.readFully(bytes);
f.close();
return new String(bytes);
}
private static void writeInstallationFile(File installation) throws IOException {
FileOutputStream out = new FileOutputStream(installation);
String id = UUID.randomUUID().toString();
out.write(id.getBytes());
out.close();
}
}
> Usage (in class extending android.app.Activity)
Util.isFirstLaunch(this);
You should not use "width" and "height" attributes directly, use the style attribute like style="some css here"
if you want to use inline styling:
<div class="button" style="width:60px;height:30px;">This is a button</div>
Note, however, that inline styling should generally be avoided since it makes maintenance and style updates a nightmare. Personally, if I had a button styling like yours but also wanted to apply different sizes, I would work with multiple css classes for sizing, like this:
.button {_x000D_
background-color: #000000;_x000D_
color: #FFFFFF;_x000D_
padding: 10px;_x000D_
border-radius: 10px;_x000D_
-moz-border-radius: 10px;_x000D_
-webkit-border-radius: 10px;_x000D_
margin:10px_x000D_
}_x000D_
_x000D_
.small-btn {_x000D_
width: 50px;_x000D_
height: 25px;_x000D_
}_x000D_
_x000D_
.medium-btn {_x000D_
width: 70px;_x000D_
height: 30px;_x000D_
}_x000D_
_x000D_
.big-btn {_x000D_
width: 90px;_x000D_
height: 40px;_x000D_
}
_x000D_
<div class="button big-btn">This is a big button</div>_x000D_
<div class="button medium-btn">This is a medium button</div>_x000D_
<div class="button small-btn">This is a small button</div>_x000D_
_x000D_
Using this way of defining styles removes all style information from your HTML markup, which in will make it easier down the road if you want to change the size of all small buttons - you'll only have to change them once in the CSS.
Many options explored at http://www.coderanch.com/t/405258/java/java/String-IsNumeric
One more is
public boolean isNumeric(String s) {
return s != null && s.matches("[-+]?\\d*\\.?\\d+");
}
Might be overkill but Apache Commons NumberUtils seems to have some helpers as well.
You can use string formatting to do this:
print "If there was a birth every 7 seconds, there would be: %d births" % births
or you can give print
multiple arguments, and it will automatically separate them by a space:
print "If there was a birth every 7 seconds, there would be:", births, "births"
"a".localeCompare("b")
should actually return -1
since a
sorts before b
By example:
# select distinct code from Platform where id in ( select platform__id from Build where product=p)
pl_ids = Build.objects.values('platform__id').filter(product=p)
platforms = Platform.objects.values_list('code', flat=True).filter(id__in=pl_ids).distinct('code')
platforms = list(platforms) if platforms else []
while this might set the properties, it doesnt actually reflect in IB. So if you're essentially writing code in IB, you might as well then do it in your source code
You can also use this code to adjust to all carousel images.
.carousel-item{
width: 100%; /*width you want*/
height: 500px; /*height you want*/
overflow: hidden;
}
.carousel-item img{
width: 100%;
height: 100%;
object-fit: cover;
}
The SUBTOTAL
function can be used if you want to get the count respecting any filters you use on the page.
=SUBTOTAL(103, A1:A200)
will help you get count of non-empty rows, respecting filters.
103 - is similar to COUNTA
, but ignores empty rows and also respects filters.
Reference : SUBTOTAL function
I particularly like Jake's suggestion of the TypedString
subclass above. You could indeed create a variety of subclasses based on the sorts of POST data you plan to push up, each with its own custom set of consistent tweaks.
You also have the option of adding a header annotation to your JSON POST methods in your Retrofit API…
@Headers( "Content-Type: application/json" )
@POST("/json/foo/bar/")
Response fubar( @Body TypedString sJsonBody ) ;
…but using a subclass is more obviously self-documenting.
@POST("/json/foo/bar")
Response fubar( @Body TypedJsonString jsonBody ) ;
If you just want to use MonthName then reference Microsoft.VisualBasic and it's in Microsoft.VisualBasic.DateAndTime
//eg. Get January
String monthName = Microsoft.VisualBasic.DateAndTime.MonthName(1);
In Swift 3,
let date = Date()
let calendar = Calendar.current()
let hour = calendar.component(.hour, from: date)
Update for 2018. You can use:
global $product;
echo wc_display_product_attributes( $product );
To customise the output, copy plugins/woocommerce/templates/single-product/product-attributes.php
to themes/theme-child/woocommerce/single-product/product-attributes.php
and modify that.
You can stash
(save the changes in temporary box) then, back to master
branch HEAD.
$ git add .
$ git stash
$ git checkout master
Jump Over Commits Back and Forth:
Go to a specific commit-sha
.
$ git checkout <commit-sha>
If you have uncommitted changes here then, you can checkout to a new branch | Add | Commit | Push the current branch to the remote.
# checkout a new branch, add, commit, push
$ git checkout -b <branch-name>
$ git add .
$ git commit -m 'Commit message'
$ git push origin HEAD # push the current branch to remote
$ git checkout master # back to master branch now
If you have changes in the specific commit and don't want to keep the changes, you can do stash
or reset
then checkout to master
(or, any other branch).
# stash
$ git add -A
$ git stash
$ git checkout master
# reset
$ git reset --hard HEAD
$ git checkout master
After checking out a specific commit if you have no uncommitted change(s) then, just back to master
or other
branch.
$ git status # see the changes
$ git checkout master
# or, shortcut
$ git checkout - # back to the previous state
Update 18/02/2017 Google had depreciated free hosting feature on Google drive and now you cannot host your static website on Google drive for free.
But if you want to host your JavaScript and CSS and Images file on Google drive then you can still do so. You just need to obtain the permalink of the file. following updated tutorial (2017).
http://www.bloggerseolab.com/2017/02/host-images-javascript-and-css-on-google-drive.html
import matplotlib.pyplot as plt
fig, ax = plt.subplots(2, 2)
To turn off axes for all subplots, do either:
[axi.set_axis_off() for axi in ax.ravel()]
or
map(lambda axi: axi.set_axis_off(), ax.ravel())
float percent = (n / (v * 1.0f)) *100
You can use exec
command to redirect all stdout/stderr output of any commands later.
sample script:
exec 2> your_file2 > your_file1
your other commands.....
A tip to all people that use flat-red, flat-green plugin, because of this plugin the answers above wont work!
In that case, use onchange="do_your_stuff();" on the label, for example: Your checkbox here
The reason why it doesn't work is that this Jquery creates a lot of objects around the real checkbox, so you can't see if it's changed or not.
But if someone click straight on checkbox, won't work :'(
I knew tree
was an appropriate, but I didn't have tree installed. So, I got a pretty close alternate here
find ./ | sed -e 's/[^-][^\/]*\//--/g;s/--/ |-/'
This problem can be solved with a recursive combinations of all possible sums filtering out those that reach the target. Here is the algorithm in Python:
def subset_sum(numbers, target, partial=[]):
s = sum(partial)
# check if the partial sum is equals to target
if s == target:
print "sum(%s)=%s" % (partial, target)
if s >= target:
return # if we reach the number why bother to continue
for i in range(len(numbers)):
n = numbers[i]
remaining = numbers[i+1:]
subset_sum(remaining, target, partial + [n])
if __name__ == "__main__":
subset_sum([3,9,8,4,5,7,10],15)
#Outputs:
#sum([3, 8, 4])=15
#sum([3, 5, 7])=15
#sum([8, 7])=15
#sum([5, 10])=15
This type of algorithms are very well explained in the following Standford's Abstract Programming lecture - this video is very recommendable to understand how recursion works to generate permutations of solutions.
Edit
The above as a generator function, making it a bit more useful. Requires Python 3.3+ because of yield from
.
def subset_sum(numbers, target, partial=[], partial_sum=0):
if partial_sum == target:
yield partial
if partial_sum >= target:
return
for i, n in enumerate(numbers):
remaining = numbers[i + 1:]
yield from subset_sum(remaining, target, partial + [n], partial_sum + n)
Here is the Java version of the same algorithm:
package tmp;
import java.util.ArrayList;
import java.util.Arrays;
class SumSet {
static void sum_up_recursive(ArrayList<Integer> numbers, int target, ArrayList<Integer> partial) {
int s = 0;
for (int x: partial) s += x;
if (s == target)
System.out.println("sum("+Arrays.toString(partial.toArray())+")="+target);
if (s >= target)
return;
for(int i=0;i<numbers.size();i++) {
ArrayList<Integer> remaining = new ArrayList<Integer>();
int n = numbers.get(i);
for (int j=i+1; j<numbers.size();j++) remaining.add(numbers.get(j));
ArrayList<Integer> partial_rec = new ArrayList<Integer>(partial);
partial_rec.add(n);
sum_up_recursive(remaining,target,partial_rec);
}
}
static void sum_up(ArrayList<Integer> numbers, int target) {
sum_up_recursive(numbers,target,new ArrayList<Integer>());
}
public static void main(String args[]) {
Integer[] numbers = {3,9,8,4,5,7,10};
int target = 15;
sum_up(new ArrayList<Integer>(Arrays.asList(numbers)),target);
}
}
It is exactly the same heuristic. My Java is a bit rusty but I think is easy to understand.
C# conversion of Java solution: (by @JeremyThompson)
public static void Main(string[] args)
{
List<int> numbers = new List<int>() { 3, 9, 8, 4, 5, 7, 10 };
int target = 15;
sum_up(numbers, target);
}
private static void sum_up(List<int> numbers, int target)
{
sum_up_recursive(numbers, target, new List<int>());
}
private static void sum_up_recursive(List<int> numbers, int target, List<int> partial)
{
int s = 0;
foreach (int x in partial) s += x;
if (s == target)
Console.WriteLine("sum(" + string.Join(",", partial.ToArray()) + ")=" + target);
if (s >= target)
return;
for (int i = 0; i < numbers.Count; i++)
{
List<int> remaining = new List<int>();
int n = numbers[i];
for (int j = i + 1; j < numbers.Count; j++) remaining.Add(numbers[j]);
List<int> partial_rec = new List<int>(partial);
partial_rec.Add(n);
sum_up_recursive(remaining, target, partial_rec);
}
}
Ruby solution: (by @emaillenin)
def subset_sum(numbers, target, partial=[])
s = partial.inject 0, :+
# check if the partial sum is equals to target
puts "sum(#{partial})=#{target}" if s == target
return if s >= target # if we reach the number why bother to continue
(0..(numbers.length - 1)).each do |i|
n = numbers[i]
remaining = numbers.drop(i+1)
subset_sum(remaining, target, partial + [n])
end
end
subset_sum([3,9,8,4,5,7,10],15)
Edit: complexity discussion
As others mention this is an NP-hard problem. It can be solved in exponential time O(2^n), for instance for n=10 there will be 1024 possible solutions. If the targets you are trying to reach are in a low range then this algorithm works. So for instance:
subset_sum([1,2,3,4,5,6,7,8,9,10],100000)
generates 1024 branches because the target never gets to filter out possible solutions.
On the other hand subset_sum([1,2,3,4,5,6,7,8,9,10],10)
generates only 175 branches, because the target to reach 10
gets to filter out many combinations.
If N
and Target
are big numbers one should move into an approximate version of the solution.
Think about what you need to do if you wish to implement:
The order is WHERE, GROUP BY and HAVING.
You could use a C function getaddrinfo() to get the numerical address - both ipv4 and ipv6. See the example code here
I don't know if I am late or out of scope but in my opinion I could do it like:
String orgName = "anyParamValue";
Query q = em.createQuery("Select O from Organization O where O.orgName LIKE '%:orgName%'");
q.setParameter("orgName", orgName);
I think that what you have to check is:
if the target EXE is correctly configured in the project settings ("command", in the debugging tab). Since all individual projects run when you start debugging it's well possible that only the debugging target for the "ALL" solution is missing, check which project is currently active (you can also select the debugger target by changing the active project).
dependencies (DLLs) are also located at the target debugee directory or can be loaded (you can use the "depends.exe" tool for checking dependencies of an executable or DLL).
Had you tried creating a .jar file manually instead of using Eclipse. Try the following steps, hopefully that might help :
Considering that your directory structure looks like this :
TicTacToe(Your Project Name I mean)
| | |
src bin manifest.txt
| |
icons tictactoe
Now suppose that my main class is BeginGame
inside package tictactoe
, so I will write inside my manifest.txt file this thing :
Main-Class: tictactoe.BeginGame
Do remember the space between colons :
and package name i.e. tictactoe
, and immediately after BeginGame
press Enter and save the file.
Now on your command prompt go to the location of bin folder, I am describing my side as follows :
C:\Mine\Eclipse\TicTacToe\bin>jar -cfm ..\tictactoe.jar ..\manifest.txt tictactoe icons
..\tictactoe.jar
is used to tell that create tictactoe.jar one level up, i.e. inside TicTacToe Folder
...\manifest.txt
means that the manifest.txt file is located one level up, i.e. inside TicTacToe Folder
.tictactoe
and icons
means, that add both these folders to the .jar
file, since they are placed inside bin
Folder so they are used as it is. Now Press Enter.Now try to run your .jar file so created inside the Project Folder
(TicTacToe Folder, in my case).
Hopefully this will work.
For Python >= 2.7, use subprocess.check_output()
.
http://docs.python.org/2/library/subprocess.html#subprocess.check_output
As per the hibernate
docs here,
Connection connection()
Deprecated. (scheduled for removal in 4.x). Replacement depends on need; for doing direct JDBC stuff use doWork(org.hibernate.jdbc.Work) ...
Use Hibernate Work API instead:
Session session = entityManager.unwrap(Session.class);
session.doWork(new Work() {
@Override
public void execute(Connection connection) throws SQLException {
// do whatever you need to do with the connection
}
});
Check this example how we could implement this.
public class HoverableDropdownTest {
private WebDriver driver;
private Actions action;
//Edit: there may have been a typo in the '- >' expression (I don't really want to add this comment but SO insist on ">6 chars edit"...
Consumer < By > hover = (By by) -> {
action.moveToElement(driver.findElement(by))
.perform();
};
@Test
public void hoverTest() {
driver.get("https://www.bootply.com/render/6FC76YQ4Nh");
hover.accept(By.linkText("Dropdown"));
hover.accept(By.linkText("Dropdown Link 5"));
hover.accept(By.linkText("Dropdown Submenu Link 5.4"));
hover.accept(By.linkText("Dropdown Submenu Link 5.4.1"));
}
@BeforeTest
public void setupDriver() {
driver = new FirefoxDriver();
action = new Actions(driver);
}
@AfterTest
public void teardownDriver() {
driver.quit();
}
}
For detailed answer, check here - http://www.testautomationguru.com/selenium-webdriver-automating-hoverable-multilevel-dropdowns/
EDIT Summary and reccomendations
Using a for each cell in range
construct is not in itself slow. What is slow is repeated access to Excel in the loop (be it reading or writing cell values, format etc, inserting/deleting rows etc).
What is too slow depends entierly on your needs. A Sub that takes minutes to run might be OK if only used rarely, but another that takes 10s might be too slow if run frequently.
So, some general advice:
for index = max to min step -1
)value
, you are stuck with cell referenceseg (not tested!)
Dim rngToDelete as range
for each rw in rng.rows
if need to delete rw then
if rngToDelete is nothing then
set rngToDelete = rw
else
set rngToDelete = Union(rngToDelete, rw)
end if
endif
next
rngToDelete.EntireRow.Delete
Original post
Conventional wisdom says that looping through cells is bad and looping through a variant array is good. I too have been an advocate of this for some time. Your question got me thinking, so I did some short tests with suprising (to me anyway) results:
test data set: a simple list in cells A1
.. A1000000
(thats 1,000,000 rows)
Test case 1: loop an array
Dim v As Variant
Dim n As Long
T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
v = r
For n = LBound(v, 1) To UBound(v, 1)
'i = i + 1
'i = r.Cells(n, 1).Value 'i + 1
Next
Debug.Print "Array Time = " & (GetTickCount - T1) / 1000#
Debug.Print "Array Count = " & Format(n, "#,###")
Result:
Array Time = 0.249 sec
Array Count = 1,000,001
Test Case 2: loop the range
T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
For Each c In r
Next c
Debug.Print "Range Time = " & (GetTickCount - T1) / 1000#
Debug.Print "Range Count = " & Format(r.Cells.Count, "#,###")
Result:
Range Time = 0.296 sec
Range Count = 1,000,000
So,looping an array is faster but only by 19% - much less than I expected.
Test 3: loop an array with a cell reference
T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
v = r
For n = LBound(v, 1) To UBound(v, 1)
i = r.Cells(n, 1).Value
Next
Debug.Print "Array Time = " & (GetTickCount - T1) / 1000# & " sec"
Debug.Print "Array Count = " & Format(i, "#,###")
Result:
Array Time = 5.897 sec
Array Count = 1,000,000
Test case 4: loop range with a cell reference
T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
For Each c In r
i = c.Value
Next c
Debug.Print "Range Time = " & (GetTickCount - T1) / 1000# & " sec"
Debug.Print "Range Count = " & Format(r.Cells.Count, "#,###")
Result:
Range Time = 2.356 sec
Range Count = 1,000,000
So event with a single simple cell reference, the loop is an order of magnitude slower, and whats more, the range loop is twice as fast!
So, conclusion is what matters most is what you do inside the loop, and if speed really matters, test all the options
FWIW, tested on Excel 2010 32 bit, Win7 64 bit All tests with
ScreenUpdating
off,Calulation
manual, Events
disabled. The correct answer is:
Blah.find({}).sort({date: -1}).execFind(function(err,docs){
});
If you want a separate .js file to better organize your routes, just create a variable in the app.js
file pointing to its location in the filesystem:
var wf = require(./routes/wf);
then,
app.get('/wf', wf.foo );
where .foo
is some function declared in your wf.js
file. e.g
// wf.js file
exports.foo = function(req,res){
console.log(` request object is ${req}, response object is ${res} `);
}
See this Link
HTML
<div id="products"></div>
JS
var someone = {
"name":"Mahmoude Elghandour",
"price":"174 SR",
"desc":"WE Will BE WITH YOU"
};
var name = $("<div/>",{"text":someone.name,"class":"name"
});
var price = $("<div/>",{"text":someone.price,"class":"price"});
var desc = $("<div />", {
"text": someone.desc,
"class": "desc"
});
$("#products").fadeIn(1500);
$("#products").append(name).append(price).append(desc);
The math library must be linked in when building the executable. How to do this varies by environment, but in Linux/Unix, just add -lm
to the command:
gcc test.c -o test -lm
The math library is named libm.so
, and the -l
command option assumes a lib
prefix and .a
or .so
suffix.
You will have to expand one of your upper views to fill the remaining space by setting android:layout_weight="1"
on it. This will push your last view down to the bottom.
Here is a brief sketch of what I mean:
<LinearLayout android:orientation="vertical">
<View/>
<View android:layout_weight="1"/>
<View/>
<View android:id="@+id/bottom"/>
</LinearLayout>
where each of the child view heights is "wrap_content"
and everything else is "fill_parent"
.
I use getActionCommand() to hear buttons. I apply the setActionCommand() to each button so that I can hear whenever an event is execute with event.getActionCommand("The setActionCommand() value of the button").
I use getSource() for JRadioButtons for example. I write methods that returns each JRadioButton so in my Listener Class I can specify an action each time a new JRadioButton is pressed. So for example:
public class SeleccionListener implements ActionListener, FocusListener {}
So with this I can hear button events and radioButtons events. The following are examples of how I listen each one:
public void actionPerformed(ActionEvent event) {
if (event.getActionCommand().equals(GUISeleccion.BOTON_ACEPTAR)) {
System.out.println("Aceptar pressed");
}
In this case GUISeleccion.BOTON_ACEPTAR is a "public static final String" which is used in JButtonAceptar.setActionCommand(BOTON_ACEPTAR).
public void focusGained(FocusEvent focusEvent) {
if (focusEvent.getSource().equals(guiSeleccion.getJrbDat())){
System.out.println("Data radio button");
}
In this one, I get the source of any JRadioButton that is focused when the user hits it. guiSeleccion.getJrbDat() returns the reference to the JRadioButton that is in the class GUISeleccion (this is a Frame)
I've tried different numbers, and it always acts as if the 0s aren't there and sorts the numbers correctly otherwise. Anyone know why?
You're getting a lexicographical sort (e.g. convert objects to strings, and sort them in dictionary order), which is the default sort behavior in Javascript:
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/sort
array.sort([compareFunction])
Parameters
compareFunction
Specifies a function that defines the sort order. If omitted, the array is sorted lexicographically (in dictionary order) according to the string conversion of each element.
In the ECMAscript specification (the normative reference for the generic Javascript), ECMA-262, 3rd ed., section 15.4.4.11, the default sort order is lexicographical, although they don't come out and say it, instead giving the steps for a conceptual sort function that calls the given compare function if necessary, otherwise comparing the arguments when converted to strings:
13. If the argument comparefn is undefined, go to step 16.
14. Call comparefn with arguments x and y.
15. Return Result(14).
16. Call ToString(x).
17. Call ToString(y).
18. If Result(16) < Result(17), return -1.
19. If Result(16) > Result(17), return 1.
20. Return +0.
public class TypedProperty<T> : Property
{
public T TypedValue
{
get { return (T)(object)base.Value; }
set { base.Value = value.ToString();}
}
}
I using converting via an object. It is a little bit simpler.
I had the same problem.
This error means that you have not specified your remote URL location upon which your code will push.
You can set remote URL by 2 (mainly) ways:
Specify remote URL via executing command on Git Bash.
Navigate to your project directory
Open Git Bash
Execute command:
git remote set-url origin <https://abc.xyz/USERNAME/REPOSITORY.git>
Mention remote URL direct in config file
Navigate to your project directory
Move to .git folder
Open config file in text editor
Copy and paste below lines
[remote "origin"]
url = https://abc.xyz/USERNAME/REPOSITORY.git
fetch = +refs/heads/*:refs/remotes/origin/*
For more detailed info visit this link.
On OSX, install the rename script from Homebrew:
brew install rename
Then you can do it really ridiculously easily:
rename -e 's/.*/$N.jpg/' *.jpg
Or to add a nice prefix:
rename -e 's/.*/photo-$N.jpg/' *.jpg
your first try is using declarative pipelines, and the second working one is using scripted pipelines. you need to enclose steps in a steps declaration, and you can't use if
as a top-level step in declarative, so you need to wrap it in a script
step. here's a working declarative version:
pipeline {
agent any
stages {
stage('test') {
steps {
sh 'echo hello'
}
}
stage('test1') {
steps {
sh 'echo $TEST'
}
}
stage('test3') {
steps {
script {
if (env.BRANCH_NAME == 'master') {
echo 'I only execute on the master branch'
} else {
echo 'I execute elsewhere'
}
}
}
}
}
}
you can simplify this and potentially avoid the if statement (as long as you don't need the else) by using "when". See "when directive" at https://jenkins.io/doc/book/pipeline/syntax/. you can also validate jenkinsfiles using the jenkins rest api. it's super sweet. have fun with declarative pipelines in jenkins!
If this is your detail.html
I don't see where do you load detail.js
?
Maybe this
<script src="js/index.js"></script>
should be this
<script src="js/detail.js"></script>
?
var name = "nameGorge";
name.match(/[A-Z].*/)[0]
Testing if a value is numeric or a string representation of a numeric value.
function Test-Number
{
Param
(
[Parameter(Mandatory=$true,
Position=0)]
[ValidatePattern("^[\d\.]+$")]
$Number
)
$Number -is [ValueType] -or [Double]::TryParse($Number,[ref]$null)
}
Testing if a value is numeric.
function Test-Number
{
Param
(
[Parameter(Mandatory=$true,
Position=0)]
[ValidatePattern("^[\d\.]+$")]
$Number
)
$Number -is [ValueType]
}
To check column exists
select column_name as found
from user_tab_cols
where table_name = '__TABLE_NAME__'
and column_name = '__COLUMN_NAME__'
The process for timing out an operations is described in the documentation for signal.
The basic idea is to use signal handlers to set an alarm for some time interval and raise an exception once that timer expires.
Note that this will only work on UNIX.
Here's an implementation that creates a decorator (save the following code as timeout.py
).
from functools import wraps
import errno
import os
import signal
class TimeoutError(Exception):
pass
def timeout(seconds=10, error_message=os.strerror(errno.ETIME)):
def decorator(func):
def _handle_timeout(signum, frame):
raise TimeoutError(error_message)
def wrapper(*args, **kwargs):
signal.signal(signal.SIGALRM, _handle_timeout)
signal.alarm(seconds)
try:
result = func(*args, **kwargs)
finally:
signal.alarm(0)
return result
return wraps(func)(wrapper)
return decorator
This creates a decorator called @timeout
that can be applied to any long running functions.
So, in your application code, you can use the decorator like so:
from timeout import timeout
# Timeout a long running function with the default expiry of 10 seconds.
@timeout
def long_running_function1():
...
# Timeout after 5 seconds
@timeout(5)
def long_running_function2():
...
# Timeout after 30 seconds, with the error "Connection timed out"
@timeout(30, os.strerror(errno.ETIMEDOUT))
def long_running_function3():
...
In my case the form (which I cannot modify) was always sending POST.
While in my Web Service I tried to implement GET method (due to lack of documentation I expected that both are allowed).
Thus, it was failing as "Not allowed", since there was no method with POST type on my end.
Changing @GET
to @POST
above my WS method fixed the issue.
Also i got this error if i had the comment in tn top level of template among with the actual root element.
<!-- Just a commented out stuff -->
<div>test of {{value}}</div>
As far as I can tell,
hstore as it currently exists (in Postgresql 9.3) does not allow for nesting other objects and arrays as the values of its key/value pairs. however a future hstore patch will allow for nesting. this patch will not be in the 9.4 release and may not be included any time soon.
json as it currently exists does allow for nesting, but is text-based, and does not allow for indexing, thus it is "slow"
jsonb that will be released with 9.4 will have the current nesting capabilities of json, as well as the GIN/GIST indexing of hstore, so it will be fast
People working on postgresql 9.4 seem to be saying that the new, fast jsonb type will appeal to people who would have chosen to use a noSQL data store like MongoDB, but can now combine a relational database with query-able unstructured data under one roof
http://www.databasesoup.com/2014/02/why-hstore2jsonb-is-most-important.html
Benchmarks of postgresql 9.4 jsonb seem to be on par with or in some cases faster than MongoDB
http://texture.io/alphabetum/postgresql-incl-hstore-vs-mongodb
<context:component-scan base-package="x.y.z"/>
will work since the rest of the packages are sub packages of "x.y.z". Thus, you dont need to mention each package individually.
I got this resolution at openshift.com.
Resolution:
This error occurs only on Windows machine with Ruby 2.0.0 version. Until we officially support Ruby 2.0 please downgrade to Ruby 1.9.
On Windows, you can install Ruby 1.9.3 alongside 2.0. Change your %PATH% to
c:\ruby193\
or whatever directory you installed to prior to installing the gem.
From the official angular documentation
// Simple GET request example :
$http.get('/someUrl').
success(function(data, status, headers, config) {
// this callback will be called asynchronously
// when the response is available
}).
error(function(data, status, headers, config) {
// called asynchronously if an error occurs
// or server returns response with an error status.
});
As you can see first parameter for error callback is data an status is second.
I wanted to change default java version form 1.6* to 1.7*. I tried the following steps and it worked for me:
ln -s /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/bin/java java
java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)
.NET Core is an open source and cross platform version of .NET Framework.
You should watch this: Node Tuts episode 19 - Asynchronous Iteration Patterns
It should answers your questions.
As others have noted, it is usually preferable to specify a minimum logging level to log that level and any others more severe than it. It seems like you are just thinking about the logging levels backwards.
However, if you want more fine-grained control over logging individual levels, you can tell log4net to log only one or more specific levels using the following syntax:
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="WARN"/>
</filter>
Or to exclude a specific logging level by adding a "deny" node to the filter.
You can stack multiple filters together to specify multiple levels. For instance, if you wanted only WARN and FATAL levels. If the levels you wanted were consecutive, then the LevelRangeFilter is more appropriate.
Reference Doc: log4net.Filter.LevelMatchFilter
If the other answers haven't given you enough information, hopefully this will help you get what you want out of log4net.
If all you want to do is to remove a merge commit (2) so that it is like it never happened, the command is simply as follows
git rebase --onto <sha of 1> <sha of 2> <blue branch>
And now the purple branch isn't in the commit log of blue at all and you have two separate branches again. You can then squash the purple independently and do whatever other manipulations you want without the merge commit in the way.
git status
output tells you three things by default:
When you did git commit
, it committed to your local repository, thus #3 shows nothing to commit, however, #2 should show that you need to push or pull if you have setup the tracking branch.
If you find the output of git status verbose and difficult to comprehend, try using git status -sb
this is less verbose and will show you clearly if you need to push or pull. In your case, the output would be something like:
master...origin/master [ahead 1]
git status
is pretty useful, in the workflow you described do a git status -sb
: after touching the file, after adding the file and after committing the file, see the difference in the output, it will give you more clarity on untracked, tracked and committed files.
Update #1
This answer is applicable if there was a misunderstanding in reading the git status output. However, as it was pointed out, in the OPs case, the upstream was not set correctly. For that, Chris Mae's answer is correct.
You can either add or replace fragment in your activity. Create a FrameLayout
in activity layout xml
file.
Then do this in your activity to add fragment:
FragmentManager manager = getFragmentManager();
FragmentTransaction transaction = manager.beginTransaction();
transaction.add(R.id.container,YOUR_FRAGMENT_NAME,YOUR_FRAGMENT_STRING_TAG);
transaction.addToBackStack(null);
transaction.commit();
And to replace fragment do this:
FragmentManager manager = getFragmentManager();
FragmentTransaction transaction = manager.beginTransaction();
transaction.replace(R.id.container,YOUR_FRAGMENT_NAME,YOUR_FRAGMENT_STRING_TAG);
transaction.addToBackStack(null);
transaction.commit();
See Android documentation on adding a fragment to an activity or following related questions on SO:
Difference between add(), replace(), and addToBackStack()
Basic difference between add() and replace() method of Fragment
Difference between add() & replace() with Fragment's lifecycle
I had to turn off my personal firewall and Windows firewall as well, and it worked in the end.
Self plug: I have just released a new Java HTML parser: jsoup. I mention it here because I think it will do what you are after.
Its party trick is a CSS selector syntax to find elements, e.g.:
String html = "<html><head><title>First parse</title></head>"
+ "<body><p>Parsed HTML into a doc.</p></body></html>";
Document doc = Jsoup.parse(html);
Elements links = doc.select("a");
Element head = doc.select("head").first();
See the Selector javadoc for more info.
This is a new project, so any ideas for improvement are very welcome!
I run ant builds within Eclipse IDE (4.4, Luna, on Windows 7 x64). Rather than modifying the installed JRE lib or any ant scripts (I have multiple projects that include XJC in their builds), I prefer to change Eclipse Settings "External Tools Configurations" and add the following to the VM arguments for the Ant build configuration:
-Djavax.xml.accessExternalSchema=all
Assuming you have the date as a string (sorry it was unclear from your question if that is the case) could split the string on the - characters like so:
$date = "2068-06-15";
$split_date = split("-", $date);
$year = $split_date[0];
the "file://" url protocol can only be used to locate files in the file system of the local machine. since this html code is interpreted by a browser, the "local machine" is the machine that is running the browser.
if you are getting file not found errors, i suspect it is because the file is not found. however, it could also be a security limitation of the browser. some browsers will not let you reference a filesystem file from a non-filesystem html page. you could try using the file path from the command line on the machine running the browser to confirm that this is a browser limitation and not a legitimate missing file.
go to "Project-Properties-Configuration Properties-Linker-input-Additional dependencies" then go to the end and type ";ws2_32.lib".
Just delete the ${user.home}/.m2/repository/org/apache/maven/archetypes to refresh all files needed, it worked fine to me!
I've created an NPM module, which allows you to share locally-stored data across domains: https://www.npmjs.com/package/cookie-toss
By using an iframe hosted on Domain A, you can store all of your user data on Domain A, and reference that data by posting requests to the Domain A iframe.
Thus, Domains B, C, etc. can inject the iframe and post requests to it to store and access the desired data. Domain A becomes the hub for all shared data.
With a domain whitelist inside of Domain A, you can ensure only your dependent sites can access the data on Domain A.
The trick is to have the code inside of the iframe on Domain A which is able to recognize which data is being requested. The README in the above NPM module goes more in depth into the procedure.
Hope this helps!
json.loads
will load a json string into a python dict
, json.dumps
will dump a python dict
to a json string, for example:
>>> json_string = '{"favorited": false, "contributors": null}'
'{"favorited": false, "contributors": null}'
>>> value = json.loads(json_string)
{u'favorited': False, u'contributors': None}
>>> json_dump = json.dumps(value)
'{"favorited": false, "contributors": null}'
So that line is incorrect since you are trying to load
a python dict
, and json.loads
is expecting a valid json string
which should have <type 'str'>
.
So if you are trying to load the json, you should change what you are loading to look like the json_string
above, or you should be dumping it. This is just my best guess from the given information. What is it that you are trying to accomplish?
Also you don't need to specify the u
before your strings, as @Cld mentioned in the comments.
Problem is due to problem in my applicationContext.xml vs spring-servlet.xml - it was scoping issue between the beans.
pedjaradenkovic kindly pointed me to an existing resource: Spring @Value annotation in @Controller class not evaluating to value inside properties file and Spring 3.0.5 doesn't evaluate @Value annotation from properties
Can you use date as a factor?
Yes, but you probably shouldn't.
...or should you use
as.Date
on a date column?
Yes.
Which leads us to this:
library(scales)
df$Month <- as.Date(df$Month)
ggplot(df, aes(x = Month, y = AvgVisits)) +
geom_bar(stat = "identity") +
theme_bw() +
labs(x = "Month", y = "Average Visits per User") +
scale_x_date(labels = date_format("%m-%Y"))
in which I've added stat = "identity"
to your geom_bar
call.
In addition, the message about the binwidth wasn't an error. An error will actually say "Error" in it, and similarly a warning will always say "Warning" in it. Otherwise it's just a message.
Using the "Add Service Reference" tool in Visual Studio, you can insert the address as:
file:///path/to/wsdl/file.wsdl
And it will load properly.
If you need to put it in the tag. Not the finest solution, but it will work.
Make sure you put the onclick event in front of the href. Only worked for my this way.
<a onclick="return false;" href="//www.google.de">Google</a>
I had the same problem with openCV on Raspberry Pi... don't know if this can solve your problem, but what worked for me was
import time
import cv2
cap = cv2.VideoCapture(0)
cap.set(3,1280)
cap.set(4,1024)
time.sleep(2)
cap.set(15, -8.0)
the time you have to use can be different
You may not be able to do it with @ResponseBody, but something like this should work:
package xxx;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
public class FooBar {
@RequestMapping(value="foo/bar", method = RequestMethod.GET)
public void fooBar(HttpServletResponse response) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
out.write(myService.getJson().getBytes());
response.setContentType("application/json");
response.setContentLength(out.size());
response.getOutputStream().write(out.toByteArray());
response.getOutputStream().flush();
}
}
// This one has print statement so you can see the result at every stage if you would like. They are not needed
function crop(image, width, height)
{
image.width = width;
image.height = height;
//print ("in function", image, image.getWidth(), image.getHeight());
return image;
}
var image = new SimpleImage("name of your image here");
//print ("original", image, image.getWidth(), image.getHeight());
//crop(image,200,300);
print ("final", image, image.getWidth(), image.getHeight());
Panda is quite powerful and smart library reading CSV in Python
A simple example here, I have example.zip file with four files in it.
EXAMPLE.zip
-- example1.csv
-- example1.txt
-- example2.csv
-- example2.txt
from zipfile import ZipFile
import pandas as pd
filepath = 'EXAMPLE.zip'
file_prefix = filepath[:-4].lower()
zipfile = ZipFile(filepath)
target_file = ''.join([file_prefix, '/', file_prefix, 1 , '.csv'])
df = pd.read_csv(zipfile.open(target_file))
print(df.head()) # print first five row of csv
print(df[COL_NAME]) # fetch the col_name data
Once you have data you can manipulate to play with a list or other formats.
This is how I displayed "xx times ago" in php > 5.2 .. here is more info on DateTime object
//Usage:
$pubDate = $row['rssfeed']['pubDates']; // e.g. this could be like 'Sun, 10 Nov 2013 14:26:00 GMT'
$diff = ago($pubDate); // output: 23 hrs ago
// Return the value of time different in "xx times ago" format
function ago($timestamp)
{
$today = new DateTime(date('y-m-d h:i:s')); // [2]
//$thatDay = new DateTime('Sun, 10 Nov 2013 14:26:00 GMT');
$thatDay = new DateTime($timestamp);
$dt = $today->diff($thatDay);
if ($dt->y > 0){
$number = $dt->y;
$unit = "year";
} else if ($dt->m > 0) {
$number = $dt->m;
$unit = "month";
} else if ($dt->d > 0) {
$number = $dt->d;
$unit = "day";
} else if ($dt->h > 0) {
$number = $dt->h;
$unit = "hour";
} else if ($dt->i > 0) {
$number = $dt->i;
$unit = "minute";
} else if ($dt->s > 0) {
$number = $dt->s;
$unit = "second";
}
$unit .= $number > 1 ? "s" : "";
$ret = $number." ".$unit." "."ago";
return $ret;
}
Use non-static position along with greater z-index in child element:
.parent {
position: absolute
z-index: 100;
}
.child {
position: relative;
z-index: 101;
}
You could use /etc/profile or better a file like /etc/profile.d/jdk_home.sh
export JAVA_HOME=/usr/java/jdk1.7.0_05/
You have to remember that this file is only loaded with new login shells.. So after bash -l or a new gnome-session and that it doesn't change with new Java versions.
functional requirements are the main things that the user expects from the software for example if the application is a banking application that application should be able to create a new account, update the account, delete an account, etc. functional requirements are detailed and are specified in the system design
Non-functional requirement are not straight forward the requirement of the system rather it is related to usability( in some way ) for example for a banking application a major non-functional requirement will be available the application should be available 24/7 with no downtime if possible.
File modification:
ls -t
Inode change:
ls -tc
File access:
ls -tu
"Newest" one at the bottom:
ls -tr
None of this is a creation time. Most Unix filesystems don't support creation timestamps.
div#thing
{
position: absolute;
width:400px;
right: 0;
left: 0;
margin: auto;
}
As of version 17.0, you can format with the dt
accessor:
dates.dt.strftime('%Y-%m-%d')
I think you want to say "Are the last four characters of $file equal to .txt
?" If so, you can use the following:
if [ ${file: -4} == ".txt" ]
Note that the space between file:
and -4
is required, as the ':-' modifier means something different.
string cleanedString = System.Text.RegularExpressions.Regex.Replace(dirtyString,@"\s+"," ");
max_allowed_packet
is set in mysql config, not on php side
[mysqld]
max_allowed_packet=16M
You can see it's curent value in mysql like this:
SHOW VARIABLES LIKE 'max_allowed_packet';
You can try to change it like this, but it's unlikely this will work on shared hosting:
SET GLOBAL max_allowed_packet=16777216;
You can read about it here http://dev.mysql.com/doc/refman/5.1/en/packet-too-large.html
EDIT
The [mysqld] is necessary to make the max_allowed_packet
working since at least mysql version 5.5.
Recently setup an instance on AWS EC2 with Drupal and Solr Search Engine, which required 32M max_allowed_packet
. It you set the value under [mysqld_safe]
(which is default settings came with the mysql installation) mode in /etc/my.cnf, it did no work. I did not dig into the problem. But after I change it to [mysqld]
and restarted the mysqld, it worked.
I also had this issue using Lumen, but fixed by setting DB_STRICT_MODE=false
in .env
file.
It's possible your Java compiler is configured not to preserve variable information. Right-click on the project in Project Explorer, then select Properties > Java Compiler > Add variable attributes to generated class files (used by the debugger). Without this option set, you will only see fields in the Variables view, not local variables.
Regarding your first question.The pipe works as follows:
numberValue | number: {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}
minFractionDigits: Minimum number of integer digits to show after the decimal point
maxFractionDigits: Maximum number of integer digits to show after the decimal point
2.Regarding your second question, Filter to zero decimal places as follows:
{{ numberValue | number: '1.0-0' }}
For further reading, checkout the following blog
map
rockets and add 10 to its launches:
var rockets = [_x000D_
{ country:'Russia', launches:32 },_x000D_
{ country:'US', launches:23 },_x000D_
{ country:'China', launches:16 },_x000D_
{ country:'Europe(ESA)', launches:7 },_x000D_
{ country:'India', launches:4 },_x000D_
{ country:'Japan', launches:3 }_x000D_
];_x000D_
rockets.map((itm) => {_x000D_
itm.launches += 10_x000D_
return itm_x000D_
})_x000D_
console.log(rockets)
_x000D_
If you don't want to modify rockets
you can do:
var plusTen = []
rockets.forEach((itm) => {
plusTen.push({'country': itm.country, 'launches': itm.launches + 10})
})
PowerShell users:
Taskkill /IM node.exe /F
If you have too many installers to find what you are looking for easily, here is some powershell to provide a filter and narrow it down a little by display name.
$filter = "*core*sdk*"; (Get-ChildItem HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall).Name | % { $path = "Registry::$_"; Get-ItemProperty $path } | Where-Object { $_.DisplayName -like $filter } | Select-Object -Property DisplayName, PsChildName
The following is a hybrid jQuery solution that formats each data "record" into an HTML element and uses the data's properties as HTML attribute values.
The jquery each
runs the inner loop; I needed the regular JavaScript for
on the outer loop to be able to grab the property name (instead of value) for display as the heading. According to taste it can be modified for slightly different behaviour.
This is only 5 main lines of code but wrapped onto multiple lines for display:
$.get("data.php", function(data){
for (var propTitle in data) {
$('<div></div>')
.addClass('heading')
.insertBefore('#contentHere')
.text(propTitle);
$(data[propTitle]).each(function(iRec, oRec) {
$('<div></div>')
.addClass(oRec.textType)
.attr('id', 'T'+oRec.textId)
.insertBefore('#contentHere')
.text(oRec.text);
});
}
});
Produces the output
(Note: I modified the JSON data text values by prepending a number to ensure I was displaying the proper records in the proper sequence - while "debugging")
<div class="heading">
justIn
</div>
<div id="T123" class="Greeting">
1Hello
</div>
<div id="T514" class="Question">
1What's up?
</div>
<div id="T122" class="Order">
1Come over here
</div>
<div class="heading">
recent
</div>
<div id="T1255" class="Greeting">
2Hello
</div>
<div id="T6564" class="Question">
2What's up?
</div>
<div id="T0192" class="Order">
2Come over here
</div>
<div class="heading">
old
</div>
<div id="T5213" class="Greeting">
3Hello
</div>
<div id="T9758" class="Question">
3What's up?
</div>
<div id="T7655" class="Order">
3Come over here
</div>
<div id="contentHere"></div>
Apply a style sheet
<style>
.heading { font-size: 24px; text-decoration:underline }
.Greeting { color: green; }
.Question { color: blue; }
.Order { color: red; }
</style>
to get a "beautiful" looking set of data
More Info
The JSON data was used in the following way:
for each category (key name the array is held under):
for each object held inside an array:
Use the CAST
to the new DATE
data type in SQL Server 2008 to compare just the date portion:
IF CAST(DateField1 AS DATE) = CAST(DateField2 AS DATE)
import Tkinter as tk
def quit(root):
root.destroy()
root = tk.Tk()
tk.Button(root, text="Quit", command=lambda root=root:quit(root)).pack()
root.mainloop()
Here is a complete list--I believe: http://www.cambiaresearch.com/articles/15/javascript-char-codes-key-codes
Below format try if number is like
ex 1 suppose number like 10.1 if apply below format it will be come as 10.10
ex 2 suppose number like .02 if apply below format it will be come as 0.02
ex 3 suppose number like 0.2 if apply below format it will be come as 0.20
to_char(round(to_number(column_name)/10000000,2),'999999999990D99') as column_name
You should see Sublime Column Selection:
Using the Mouse
Different mouse buttons are used on each platform:
OS X
- Left Mouse Button + ?
OR: Middle Mouse Button
Add to selection: ?
- Subtract from selection: ?+?
Windows
- Right Mouse Button + Shift
OR: Middle Mouse Button
Add to selection: Ctrl
- Subtract from selection: Alt
Linux
Right Mouse Button + Shift
Add to selection: Ctrl
- Subtract from selection: Alt
Using the Keyboard
OS X
- Ctrl + Shift + ?
- Ctrl + Shift + ?
Windows
- Ctrl + Alt + ?
- Ctrl + Alt + ?
Linux
- Ctrl + Alt + ?
- Ctrl + Alt + ?
Try umount -f /mnt/share. Works OK with NFS, never tried with cifs.
Also, take a look at autofs, it will mount the share only when accessed, and will unmount it afterworlds.
There is a good tutorial at www.howtoforge.net
The only thing that springs to mind for this is to use a proxy server based in Europe. Either have your colleague set one up [if possible] or find a free proxy. A quick Google search came up with http://www.anonymousinet.com/ as the top result.
Spring considers that anything behind the last dot is a file extension such as .json
or .xml
and trucate it to retrieve your parameter.
So if you have /somepath/{variable}
:
/somepath/param
, /somepath/param.json
, /somepath/param.xml
or /somepath/param.anything
will result in a param with value param
/somepath/param.value.json
, /somepath/param.value.xml
or /somepath/param.value.anything
will result in a param with value param.value
if you change your mapping to /somepath/{variable:.+}
as suggested, any dot, including the last one will be consider as part of your parameter :
/somepath/param
will result in a param with value param
/somepath/param.json
will result in a param with value param.json
/somepath/param.xml
will result in a param with value param.xml
/somepath/param.anything
will result in a param with value param.anything
/somepath/param.value.json
will result in a param with value param.value.json
If you don't care of extension recognition, you can disable it by overriding mvc:annotation-driven
automagic :
<bean id="handlerMapping"
class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">
<property name="contentNegotiationManager" ref="contentNegotiationManager"/>
<property name="useSuffixPatternMatch" value="false"/>
</bean>
So, again, if you have /somepath/{variable}
:
/somepath/param
, /somepath/param.json
, /somepath/param.xml
or /somepath/param.anything
will result in a param with value param
/somepath/param.value.json
, /somepath/param.value.xml
or /somepath/param.value.anything
will result in a param with value param.value
note : the difference from the default config is visible only if you have a mapping like somepath/something.{variable}
. see Resthub project issue
if you want to keep extension management, since Spring 3.2 you can also set the useRegisteredSuffixPatternMatch property of RequestMappingHandlerMapping bean in order to keep suffixPattern recognition activated but limited to registered extension.
Here you define only json and xml extensions :
<bean id="handlerMapping"
class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">
<property name="contentNegotiationManager" ref="contentNegotiationManager"/>
<property name="useRegisteredSuffixPatternMatch" value="true"/>
</bean>
<bean id="contentNegotiationManager" class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
<property name="favorPathExtension" value="false"/>
<property name="favorParameter" value="true"/>
<property name="mediaTypes">
<value>
json=application/json
xml=application/xml
</value>
</property>
</bean>
Note that mvc:annotation-driven accepts now a contentNegotiation option to provide a custom bean but the property of RequestMappingHandlerMapping has to be changed to true (default false) (cf. https://jira.springsource.org/browse/SPR-7632).
For that reason, you still have to override the all mvc:annotation-driven configuration. I opened a ticket to Spring to ask for a custom RequestMappingHandlerMapping : https://jira.springsource.org/browse/SPR-11253. Please vote if you are intereted in.
While overriding, be carreful to consider also custom Execution management overriding. Otherwise, all your custom Exception mappings will fail. You will have to reuse messageCoverters with a list bean :
<bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />
<bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean" />
<util:list id="messageConverters">
<bean class="your.custom.message.converter.IfAny"></bean>
<bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"></bean>
<bean class="org.springframework.http.converter.StringHttpMessageConverter"></bean>
<bean class="org.springframework.http.converter.ResourceHttpMessageConverter"></bean>
<bean class="org.springframework.http.converter.xml.SourceHttpMessageConverter"></bean>
<bean class="org.springframework.http.converter.xml.XmlAwareFormHttpMessageConverter"></bean>
<bean class="org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter"></bean>
<bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"></bean>
</util:list>
<bean name="exceptionHandlerExceptionResolver"
class="org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver">
<property name="order" value="0"/>
<property name="messageConverters" ref="messageConverters"/>
</bean>
<bean name="handlerAdapter"
class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
<property name="webBindingInitializer">
<bean class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">
<property name="conversionService" ref="conversionService" />
<property name="validator" ref="validator" />
</bean>
</property>
<property name="messageConverters" ref="messageConverters"/>
</bean>
<bean id="handlerMapping"
class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">
</bean>
I implemented, in the open source project Resthub that I am part of, a set of tests on these subjects : see https://github.com/resthub/resthub-spring-stack/pull/219/files & https://github.com/resthub/resthub-spring-stack/issues/217
Did you try du -ks | awk '{print $1*1024}'. That might just work.
If none of these worked,
you should try to use :
ConstraintLayout targetView = (ConstraintLayout) recyclerView.findViewHolderForAdapterPosition(adapter.getItemCount()-1).itemView;
targetView.getParent().requestChildFocus(targetView, targetView);
By doing this, you are requesting a certain ConstraintLayout (Or whatever you have) to be displayed. The scroll is instant.
I works even with keyboard shown.
Here's my take if you want to try using multiprocesses to process each row of numpy array,
from multiprocessing import Pool
import numpy as np
def my_function(x):
pass # do something and return something
if __name__ == '__main__':
X = np.arange(6).reshape((3,2))
pool = Pool(processes = 4)
results = pool.map(my_function, map(lambda x: x, X))
pool.close()
pool.join()
pool.map take in a function and an iterable.
I used 'map' function to create an iterator over each rows of the array.
Maybe there's a better to create the iterable though.
If you changed height of tableView's headerView, just reset headerView's frame, then, reset headerView of tableView:
self.headerView.frame = newFrame;
self.tableView.tableHeaderView = self.headerView;
In your CSS stylesheet, try adding:
input[type="text"] {
font-size:25px;
}
See this jsFiddle example
Why not just use setAttribute ?
thisDiv.setAttribute('attrName','data you wish to append');
Then you can get this data by :
thisDiv.attrName;
Yes, but it depends on what you mean by 'embed'; as far as I can tell after reading through the docs, it seems like you have a couple of options if you want to get around using the iframe API. You can use the javascript and flash API's (https://developers.google.com/youtube/player_parameters) to embed a player, but that involves creating Flash objects in your code (something I personally avoid, but not necessarily something that you have to). Below are some helpful sections from the dev docs for the Youtube API.
If you really want to get around all these methods and include video without any sort of iframe, then your best bet might be creating an HTML5 video player/app that can connect to the Youtube Data API (https://developers.google.com/youtube/v3/). I'm not sure what the extent of your needs are, but this would be the way to go if you really want to get around using any iframes or flash objects.
Hope this helps!
Useful:
(https://developers.google.com/youtube/player_parameters)
IFrame embeds using the IFrame Player API
Follow the IFrame Player API instructions to insert a video player in your web page or application after the Player API's JavaScript code has loaded. The second parameter in the constructor for the video player is an object that specifies player options. Within that object, the playerVars property identifies player parameters.
The HTML and JavaScript code below shows a simple example that inserts a YouTube player into the page element that has an id value of ytplayer. The onYouTubePlayerAPIReady() function specified here is called automatically when the IFrame Player API code has loaded. This code does not define any player parameters and also does not define other event handlers.
...
IFrame embeds using tags
Define an tag in your application in which the src URL specifies the content that the player will load as well as any other player parameters you want to set. The tag's height and width parameters specify the dimensions of the player.
If you are creating the element yourself (rather than using the IFrame Player API to create it), you can append player parameters directly to the end of the URL. The URL has the following format:
...
AS3 object embeds
Object embeds use an tag to specify the player's dimensions and parameters. The sample code below demonstrates how to use an object embed to load an AS3 player that automatically plays the same video as the previous two examples.
To do this without rewriting history (i.e. if you've already pushed the commits):
git checkout master
git revert <commitID(s)>
git checkout -b new-branch
git cherry-pick <commitID(s)>
Both branches can then be pushed without force!
Finally, I've defeated my CiSCO EAP-FAST corporate wifi network, and all our Android devices are now able to connect to it.
The walk-around I've performed in order to gain access to this kind of networks from an Android device are easiest than you can imagine.
There's a Wifi Config Editor in the Google Play Store you can use to "activate" the secondary CISCO Protocols when you are setting up a EAP wifi connection.
Its name is Wifi Config Advanced Editor.
First, you have to setup your wireless network manually as close as you can to your "official" corporate wifi parameters.
Save it.
Go to the WCE and edit the parameters of the network you have created in the previous step.
There are 3 or 4 series of settings you should activate in order to force the Android device to use them as a way to connect (the main site I think you want to visit is Enterprise Configuration, but don't forget to check all the parameters to change them if needed.
As a suggestion, even if you have a WPA2 EAP-FAST Cipher, try LEAP in your setup. It worked for me as a charm.
When you finished to edit the config, go to the main Android wifi controller, and force to connect to this network.
Do not Edit the network again with the Android wifi interface.
I have tested it on Samsung Galaxy 1 and 2, Note mobile devices, and on a Lenovo Thinkpad Tablet.
Many people had difficulty in using this keyword when we have iteration of Drop-downs with same elements but different values or say as Multi line data in USER INTERFACE. : Here is the code snippet : $(this).find('option[value=yourvalue]');
Hope you got this.
I dunno if you are looking for a solution on Linux. If so, you can try this:
$ mkdir destdir
$ cd sourcedir
$ find . -type d | cpio -pdvm destdir
Basing myself on answers provided by Xavi Martínez and koppor I came up with a solution that uses the url hash or localStorage depending on the availability of the latter:
function rememberTabSelection(tabPaneSelector, useHash) {
var key = 'selectedTabFor' + tabPaneSelector;
if(get(key))
$(tabPaneSelector).find('a[href=' + get(key) + ']').tab('show');
$(tabPaneSelector).on("click", 'a[data-toggle]', function(event) {
set(key, this.getAttribute('href'));
});
function get(key) {
return useHash ? location.hash: localStorage.getItem(key);
}
function set(key, value){
if(useHash)
location.hash = value;
else
localStorage.setItem(key, value);
}
}
Usage:
$(document).ready(function () {
rememberTabSelection('#rowTab', !localStorage);
// Do Work...
});
It does not keep up with the back button as is the case for Xavi Martínez's solution.
steps to install maven :
You can do this simply Mysql DATE_FORMAT() function in GROUP BY. You may want to add an extra column for added clarity in some cases such as where records span several years then same month occurs in different years.Here so many option you can customize this. Please read this befor starting. Hope it should be very helpful for you. Here is sample query for your understanding
SELECT
COUNT(id),
DATE_FORMAT(record_date, '%Y-%m-%d') AS DAY,
DATE_FORMAT(record_date, '%Y-%m') AS MONTH,
DATE_FORMAT(record_date, '%Y') AS YEAR
FROM
stats
WHERE
YEAR = 2009
GROUP BY
DATE_FORMAT(record_date, '%Y-%m-%d ');
Please try something like:
=IF(LEN(C1)>10,VALUE(LEFT(C1,FIND(" ",C1,8))),IF(ISTEXT(C1),DATE(RIGHT(C1,4),MID(C1,4,2),LEFT(C1,2)),C1))
You seem to have three main possible scenarios:
ColumnA below is formatted General and ColumnB as Date (my default setting). ColumnC also as date but with custom formatting to suit the appearances mentioned in your question.
A clue as to whether or not text format is the left or right alignment of the cells’ contents.
I am suggesting separate treatment for each of the above three main cases, so use =IF to differentiate them.
This is longer than any of the others, so can be distinguished as having a length greater than say 10 characters, with =LEN.
In this case we want all but the last six characters but for added flexibility (for instance, in case the time element included seconds) I have chosen to count from the left rather than from the right. The problem then is that the month names may vary in length, so I have chosen to look for the space that immediately follows the year to indicate the limit for the relevant number of characters.
This with =FIND which looks for a space (" "
) in C1
, starting with the eighth character within C1
counting from the left, on the assumption that for this case days will be expressed as two characters and months as three or more.
Since =LEFT is a string function it returns a string, but this can be converted to a value with=VALUE.
So
=VALUE(LEFT(C1,FIND(" ",C1,8)))
returns 40671
in this example – in Excel’s 1900 date system the date serial number for May 5, 2011.
If the length of C1 is not greater than 10 characters, we still need to distinguish between a text entry or a value entry which I have chosen to do with =ISTEXT and, where the if condition is TRUE (as for C2) apply =DATE which takes three parameters, here provided by:
=RIGHT(C2,4)
Takes the last four characters of C2, hence 2011
in this example.
=MID(C2,4,2)
Starting at the fourth character, takes the next two characters of C2, hence 05
in this example (representing May).
=LEFT(C2,2))
Takes the first two characters of C2, hence 08
in this example (representing the 8th day of the month).
Date is not a text function so does not need to be wrapped in =VALUE.
Taken together
=DATE(RIGHT(C2,4),MID(C2,4,2),LEFT(C2,2))
also returns 40671
in this example, but from different input from Case #1.
Is simple because already a date serial number, so just
=C2
is sufficient.
Put the above together to cover all three cases in a single formula:
=IF(LEN(C1)>10,VALUE(LEFT(C1,FIND(" ",C1,8))),IF(ISTEXT(C1),DATE(RIGHT(C1,4),MID(C1,4,2),LEFT(C1,2)),C1))
as applied in ColumnF (formatted to suit OP) or in General format (to show values are integers) in ColumnH:
var is a variable like any other language. eg.
var price: Double
On the other side, val provides you feature of referencing. eg.
val CONTINENTS = 7
// You refer this to get constant value 7. In this case, val acts as access
// specifier final in Java
and,
val Int.absolute: Int
get() {
return Math.abs(this)
}
// You refer to the newly create 'method' which provides absolute value
// of your integer
println(-5.absolute) // O.P: 5
This should work.
var url = 'http://<your_url_here>';
var headers = {
'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Firefox/24.0',
'Content-Type' : 'application/x-www-form-urlencoded'
};
var form = { username: 'user', password: '', opaque: 'someValue', logintype: '1'};
request.post({ url: url, form: form, headers: headers }, function (e, r, body) {
// your callback body
});
You can change the font size in R Markdown with HTML code tags <font size="1"> your text </font>
. This code is added to the R Markdown document and will alter the output of the HTML output.
For example:
<font size="1"> This is my text number1</font> _x000D_
_x000D_
<font size="2"> This is my text number 2 </font>_x000D_
_x000D_
<font size="3"> This is my text number 3</font> _x000D_
_x000D_
<font size="4"> This is my text number 4</font> _x000D_
_x000D_
<font size="5"> This is my text number 5</font> _x000D_
_x000D_
<font size="6"> This is my text number 6</font>
_x000D_
"\t"
not '\t'
, php doesnt escape in single quotes
It's nice that Go has a Duration
type -- having explicitly defined units can prevent real-world problems.
And because of Go's strict type rules, you can't multiply a Duration by an integer -- you must use a cast in order to multiply common types.
/*
MultiplyDuration Hide semantically invalid duration math behind a function
*/
func MultiplyDuration(factor int64, d time.Duration) time.Duration {
return time.Duration(factor) * d // method 1 -- multiply in 'Duration'
// return time.Duration(factor * int64(d)) // method 2 -- multiply in 'int64'
}
The official documentation demonstrates using method #1:
To convert an integer number of units to a Duration, multiply:
seconds := 10
fmt.Print(time.Duration(seconds)*time.Second) // prints 10s
But, of course, multiplying a duration by a duration should not produce a duration -- that's nonsensical on the face of it. Case in point, 5 milliseconds times 5 milliseconds produces 6h56m40s
. Attempting to square 5 seconds results in an overflow (and won't even compile if done with constants).
By the way, the int64
representation of Duration
in nanoseconds "limits the largest representable duration to approximately 290 years", and this indicates that Duration
, like int64
, is treated as a signed value: (1<<(64-1))/(1e9*60*60*24*365.25) ~= 292
, and that's exactly how it is implemented:
// A Duration represents the elapsed time between two instants
// as an int64 nanosecond count. The representation limits the
// largest representable duration to approximately 290 years.
type Duration int64
So, because we know that the underlying representation of Duration
is an int64
, performing the cast between int64
and Duration
is a sensible NO-OP -- required only to satisfy language rules about mixing types, and it has no effect on the subsequent multiplication operation.
If you don't like the the casting for reasons of purity, bury it in a function call as I have shown above.
With Java 11 you won't have to go through this rigmarole anymore!
Instead, you can do this:
> java MyApp.java
You don't have to compile beforehand, as it's all done in one step.
You can get the Java 11 JDK here: JDK 11 GA Release
Instead of shooting in the dark, get the reason for this error by installing it via adb
:
adb -s emulator-5555 install ~/path-to-your-apk/com.app.apk
Replace emulator-5555
with your device name. You can obtain a list using:
adb devices
Upon failing, it will give a reason. Common reasons and their fixes:
This has already been answered perfectly, but since I just came to this page and did not understand immediately I am just going to add a simple but complete example.
def some_func(a_char, a_float, a_something):
print a_char
params = ['a', 3.4, None]
some_func(*params)
>> a
This is a fairly comprehensive list from the Eclipse documentation. If anyone knows of another list — maybe with more details, or just the most common icons — feel free to add it.
Latest: JDT Icons
2019-06: JDT Icons
2019-03: JDT Icons
2018-12: JDT Icons
2018-09: JDT Icons
Photon: JDT Icons
Oxygen: JDT Icons
Neon: JDT Icons
Mars: JDT Icons
Luna: JDT Icons
Kepler: JDT Icons
Juno: JDT Icons
Indigo: JDT Icons
Helios: JDT Icons
There are also some CDT icons at the bottom of this help page.
If you're a Subversion user, the icons you're looking for may actually belong to Subclipse; see this excellent answer for more on those.
Either
Method 2 by step
The WebSocket connection starts its life with an HTTP or HTTPS handshake. When the page is accessed through HTTP, you can use WS or WSS (WebSocket secure: WS over TLS) . However, when your page is loaded through HTTPS, you can only use WSS - browsers don't allow to "downgrade" security.
For unstaging all the files in your last commit -
git reset HEAD~
As already mentioned earlier. You could autowire Environment:
@Autowire
private Environment environment;
only you could do check for the needed environment much easier:
if (environment.acceptsProfiles(Profiles.of("test"))) {
doStuffForTestEnv();
} else {
doStuffForOtherProfiles();
}
Add this extension:
myView.removeSelf()
fun View?.removeSelf() {
this ?: return
val parent = parent as? ViewGroup ?: return
parent.removeView(this)
}
Here are a few options:
// Built-in
myViewGroup.addView(myView)
// Null-safe extension
fun ViewGroup?.addView(view: View?) {
this ?: return
view ?: return
addView(view)
}
// Reverse addition
myView.addTo(myViewGroup)
fun View?.addTo(parent: ViewGroup?) {
this ?: return
parent ?: return
parent.addView(this)
}
try with below on powershell:
Set-ExecutionPolicy -ExecutionPolicy Unrestricted
import-module [\path\]XMLHelpers.psm1
Instead of [] put the full path
Java doesn't have a Random generator between two values in the same way that Python does. It actually only takes one value in to generate the Random. What you need to do, then, is add ONE CERTAIN NUMBER to the number generated, which will cause the number to be within a range. For instance:
package RandGen;
import java.util.Random;
public class RandGen {
public static Random numGen =new Random();
public static int RandNum(){
int rand = Math.abs((100)+numGen.nextInt(100));
return rand;
}
public static void main(String[]Args){
System.out.println(RandNum());
}
}
This program's function lies entirely in line 6 (The one beginning with "int rand...". Note that Math.abs() simply converts the number to absolute value, and it's declared as an int, that's not really important. The first (100) is the number I am ADDING to the random one. This means that the new output number will be the random number + 100. numGen.nextInt() is the value of the random number itself, and because I put (100) in its parentheses, it is any number between 1 and 100. So when I add 100, it becomes a number between 101 and 200. You aren't actually GENERATING a number between 100 and 200, you are adding to the one between 1 and 100.
Exception code c0000005
is the code for an access violation. That means that your program is accessing (either reading or writing) a memory address to which it does not have rights. Most commonly this is caused by:
N
and you access elements with index >=N
.To solve the problem you'll need to do some debugging. If you are not in a position to get the fault to occur under your debugger on your development machine you should get a crash dump file and load it into your debugger. This will allow you to see where in the code the problem occurred and hopefully lead you to the solution. You'll need to have the debugging symbols associated with the executable in order to see meaningful stack traces.
You want just .text
.
You can then verify it after you've got it, don't attempt to pass in what you expect it should have.
In the form described by you, the problem is tough. Do you consider copy, paste of part of the image into another larger image as a copy ? etc.
If you take a step-back, this is easier to solve if you watermark the master images. You will need to use a watermarking scheme to embed a code into the image. To take a step back, as opposed to some of the low-level approaches (edge detection etc) suggested by some folks, a watermarking method is superior because:
It is resistant to Signal processing attacks ? Signal enhancement – sharpening, contrast, etc. ? Filtering – median, low pass, high pass, etc. ? Additive noise – Gaussian, uniform, etc. ? Lossy compression – JPEG, MPEG, etc.
It is resistant to Geometric attacks ? Affine transforms ? Data reduction – cropping, clipping, etc. ? Random local distortions ? Warping
Do some research on watermarking algorithms and you will be on the right path to solving your problem. ( Note: You can benchmark you method using the STIRMARK dataset. It is an accepted standard for this type of application.
You can adjust the plot margins with plot.margin
in theme()
and then move your axis labels and title with the vjust
argument of element_text()
. For example :
library(ggplot2)
library(grid)
qplot(rnorm(100)) +
ggtitle("Title") +
theme(axis.title.x=element_text(vjust=-2)) +
theme(axis.title.y=element_text(angle=90, vjust=-0.5)) +
theme(plot.title=element_text(size=15, vjust=3)) +
theme(plot.margin = unit(c(1,1,1,1), "cm"))
will give you something like this :
If you want more informations about the different theme()
parameters and their arguments, you can just enter ?theme
at the R prompt.
There's a solution for multi-line text with pure css. It's called line-clamp
, but it only works in webkit browsers. There is however a way to mimic this in all modern browsers (everything more recent than IE8.) Also, it will only work on solid backgrounds because you need a background-image to hide the last words of the last line. Here's how it goes:
Given this html:
<p class="example" id="example-1">
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</p>
Here's the CSS:
p {
position:relative;
line-height:1.4em;
height:4.2em; /* 3 times the line-height to show 3 lines */
}
p::after {
content:"...";
font-weight:bold;
position:absolute;
bottom:0;
right:0;
padding:0 20px 1px 45px;
background:url(ellipsis_bg.png) repeat-y;
}
ellipsis_bg.png being an image of the same color of your background, that would be about 100px wide and have the same height as your line-height.
It's not very pretty, as your text may be cut of in the middle of a letter, but it may be useful in some cases.
Reference: http://www.css-101.org/articles/line-clamp/line-clamp_for_non_webkit-based_browsers.php
If you have N
nodes, there are N - 1
directed edges than can lead from it (going to every other node). Therefore, the maximum number of edges is N * (N - 1)
.
Prior to ECMAScript 5, parseInt() also autodetected octal literals, which caused problems because many developers assumed a leading 0 would be ignored.
So Instead of :
var num = parseInt("071"); // 57
Do this:
var num = parseInt("071", 10); // 71
var num = parseInt("071", 8);
var num = parseFloat(someValue);
Use:
jQuery(document).ready(function($){
// code where you can use $ thanks to the parameter
});
Or its shorter version:
jQuery(function($){
// code where you can use $ thanks to the parameter
});
Try this - you need a CTE (Common Table Expression) that partitions (groups) your data by distinct e-mail address, and sorts each group by ID - smallest first. Then you just select the first entry for each group - that should give you what you're looking for:
;WITH DistinctMails AS
(
SELECT ID, MailID, EMailAddress, NAME,
ROW_NUMBER() OVER(PARTITION BY EMailAddress ORDER BY ID) AS 'RowNum'
FROM dbo.YourMailTable
)
SELECT *
FROM DistinctMails
WHERE RowNum = 1
This works on SQL Server 2005 and newer (you didn't mention what version you're using...)
On click of TextField cross button(X) onmousemove() gets fired, we can use this event to call any function.
<input type="search" class="actInput" id="ruleContact" onkeyup="ruleAdvanceSearch()" placeholder="Search..." onmousemove="ruleAdvanceSearch()"/>
len = max(key for (item, key) in list)
newlist = [[] for i in range(len+1)]
for item,key in list:
newlist[key].append(item)
You can do it in a single list comprehension, perhaps more elegant but O(n**2):
[[item for (item,key) in list if key==i] for i in range(max(key for (item,key) in list)+1)]
In my case, the only option was to remove the VM and download it again. No re-configuration of the host-only adapter did not help, I used different addressing of DHCP. Virtual Box I updated to version 4.3.4 and Genymotion to 2.0.2
Also you can setup extJs writer
with encode
: true
and it will send data regularly (and, hence, you will be able to retrieve data via $_POST
and $_GET
).
... the values will be sent as part of the request parameters as opposed to a raw post (via docs for encode config of Ext.data.writer.Json)
UPDATE
Also docs say that:
The encode option should only be set to true when a root is defined
So, probably, writer
's root
config is required.
I'm Daniel Stenberg.
I founded the curl project back in 1998, I wrote the initial curl version and I created libcurl. I've written more than half of all the 24,000 commits done in the source code repository up to this point in time. I'm still the lead developer of the project. To a large extent, curl is my baby.
I shipped the first version of curl as open source since I wanted to "give back" to the open source world that had given me so much code already. I had used so much open source and I wanted to be as cool as the other open source authors.
Thanks to it being open source, literally thousands of people have been able to help us out over the years and have improved the products, the documentation. the web site and just about every other detail around the project. curl and libcurl would never have become the products that they are today were they not open source. The list of contributors now surpass 1900 names and currently the list grows with a few hundred names per year.
Thanks to curl and libcurl being open source and liberally licensed, they were immediately adopted in numerous products and soon shipped by operating systems and Linux distributions everywhere thus getting a reach beyond imagination.
Thanks to them being "everywhere", available and liberally licensed they got adopted and used everywhere and by everyone. It created a defacto transfer library standard.
At an estimated six billion installations world wide, we can safely say that curl is the most widely used internet transfer library in the world. It simply would not have gone there had it not been open source. curl runs in billions of mobile phones, a billion Windows 10 installations, in a half a billion games and several hundred million TVs - and more.
Should I have released it with proprietary license instead and charged users for it? It never occured to me, and it wouldn't have worked because I would never had managed to create this kind of stellar project on my own. And projects and companies wouldn't have used it.
Now, why do I and my fellow curl developers still continue to develop curl and give it away for free to the world?
Yes. So insanely much.
But I'm not satisfied with this and I'm not just leaning back, happy with what we've done. I keep working on curl every single day, to improve, to fix bugs, to add features and to make sure curl keeps being the number one file transfer solution for the world even going forward.
We do mistakes along the way. We make the wrong decisions and sometimes we implement things in crazy ways. But to win in the end and to conquer the world is about patience and endurance and constantly going back and reconsidering previous decisions and correcting previous mistakes. To continuously iterate, polish off rough edges and gradually improve over time.
Never give in. Never stop. Fix bugs. Add features. Iterate. To the end of time.
Yeah. For real.
Sure I get tired at times. Working on something every day for over twenty years isn't a paved downhill road. Sometimes there are obstacles. During times things are rough. Occasionally people are just as ugly and annoying as people can be.
But curl is my life's project and I have patience. I have thick skin and I don't give up easily. The tough times pass and most days are awesome. I get to hang out with awesome people and the reward is knowing that my code helps driving the Internet revolution everywhere is an ego boost above normal.
curl will never be "done" and so far I think work on curl is pretty much the most fun I can imagine. Yes, I still think so even after twenty years in the driver's seat. And as long as I think it's fun I intend to keep at it.
Here is the solution I was looking for. If you would like to create List2 that contains the difference of the number elements in List1.
list1 = [12, 15, 22, 54, 21, 68, 9, 73, 81, 34, 45]
list2 = []
for i in range(1, len(list1)):
change = list1[i] - list1[i-1]
list2.append(change)
Note that while len(list1)
is 11 (elements), len(list2)
will only be 10 elements because we are starting our for loop from element with index 1 in list1 not from element with index 0 in list1
It is worth noting here that one of the most significant differences between conditionally executing code based on #if DEBUG
versus if(System.Diagnostics.Debugger.IsAttached)
is that the compiler directive changes the code that is compiled. That is, if you have two different statements in an #if DEBUG/#else/#endif
conditional block, only one of them will appear in the compiled code. This is an important distinction because it allows you do do things such as conditionally compile method definitions to be public void mymethod()
versus internal void mymethod()
depending on build type so that you can, for example, run unit tests on debug builds that will not break access control on production builds, or conditionally compile helper functions in debug builds that will not appear in the final code if they would violate security in some way should they escape into the wild. The IsAttached
property, on the other hand, does not affect the compiled code. Both sets of code are in all of the builds - the IsAttached
condition will only affect what is executed. This by itself can present a security issue.
In my case, writing a small utility in C# helped. Links that helped me - http://pascallaurin42.blogspot.com/2012/05/tfs-queries-searching-in-all-files-of.html
How to list files of a team project using tfs api?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.TeamFoundation.Client;
using Microsoft.TeamFoundation.VersionControl.Client;
using Microsoft.TeamFoundation.Framework.Client;
using System.IO;
namespace TFSSearch
{
class Program
{
static string[] textPatterns = new[] { "void main(", "exception", "RegisterScript" }; //Text to search
static string[] filePatterns = new[] { "*.cs", "*.xml", "*.config", "*.asp", "*.aspx", "*.js", "*.htm", "*.html",
"*.vb", "*.asax", "*.ashx", "*.asmx", "*.ascx", "*.master", "*.svc"}; //file extensions
static void Main(string[] args)
{
try
{
var tfs = TfsTeamProjectCollectionFactory
.GetTeamProjectCollection(new Uri("http://{tfsserver}:8080/tfs/}")); // one some servers you also need to add collection path (if it not the default collection)
tfs.EnsureAuthenticated();
var versionControl = tfs.GetService<VersionControlServer>();
StreamWriter outputFile = new StreamWriter(@"C:\Find.txt");
var allProjs = versionControl.GetAllTeamProjects(true);
foreach (var teamProj in allProjs)
{
foreach (var filePattern in filePatterns)
{
var items = versionControl.GetItems(teamProj.ServerItem + "/" + filePattern, RecursionType.Full).Items
.Where(i => !i.ServerItem.Contains("_ReSharper")); //skipping resharper stuff
foreach (var item in items)
{
List<string> lines = SearchInFile(item);
if (lines.Count > 0)
{
outputFile.WriteLine("FILE:" + item.ServerItem);
outputFile.WriteLine(lines.Count.ToString() + " occurence(s) found.");
outputFile.WriteLine();
}
foreach (string line in lines)
{
outputFile.WriteLine(line);
}
if (lines.Count > 0)
{
outputFile.WriteLine();
}
}
}
outputFile.Flush();
}
}
catch (Exception e)
{
string ex = e.Message;
Console.WriteLine("!!EXCEPTION: " + e.Message);
Console.WriteLine("Continuing... ");
}
Console.WriteLine("========");
Console.Read();
}
// Define other methods and classes here
private static List<string> SearchInFile(Item file)
{
var result = new List<string>();
try
{
var stream = new StreamReader(file.DownloadFile(), Encoding.Default);
var line = stream.ReadLine();
var lineIndex = 0;
while (!stream.EndOfStream)
{
if (textPatterns.Any(p => line.IndexOf(p, StringComparison.OrdinalIgnoreCase) >= 0))
result.Add("=== Line " + lineIndex + ": " + line.Trim());
line = stream.ReadLine();
lineIndex++;
}
}
catch (Exception e)
{
string ex = e.Message;
Console.WriteLine("!!EXCEPTION: " + e.Message);
Console.WriteLine("Continuing... ");
}
return result;
}
}
}
MacOS just paste in the Terminal:
keytool -list -v -alias androiddebugkey -keystore ~/.android/debug.keystore -storepass android -keypass android
I know this is an old post, but I thought I would share my solution to help others.
This function will work if you want to valid 10 digits phone number "US number"
function getValidNumber(value)
{
value = $.trim(value).replace(/\D/g, '');
if (value.substring(0, 1) == '1') {
value = value.substring(1);
}
if (value.length == 10) {
return value;
}
return false;
}
Here how to use this method
var num = getValidNumber('(123) 456-7890');
if(num !== false){
alert('The valid number is: ' + num);
} else {
alert('The number you passed is not a valid US phone number');
}
The command
echo this ^& that
works as expected, outputing
this & that
The command
echo this ^& that > tmp
also works, writing the string to file "tmp". However, before a pipe
echo this ^& that | clip
the ^ is interpreted completely differently. It tries to write the output of the two commands "echo this" and "that" to the pipe. The echo will work then "that" will give an error. Saying
echo this ^& echo that | clip
will put the strings "this" and "that" on the clipboard.
Without the ^:
echo this & echo that | clip
the first echo will write to the console and only the second echo's output will be piped to clip (similarly for "> tmp" redirection). So, when output is being redirected, the ^ does not quote the & but instead causes it to be applied before the redirection rather than after.
To pipe an &, you have to quote it twice
echo this ^^^& that | clip
If you put the string in a variable
set m=this ^& that
then
set m
will output
m=this & that
but the obvious
echo %m%
fails because, after Windows substitutes the variable, resulting in
echo this & that
it parses this as a new command and tries to execute "that".
In a batch file, you can use delayed expansion:
setlocal enableDelayedExpansion
echo !m!
To output to a pipe, we have to replace all &s in the variable value with ^&, which we can do with the %VAR:FROM=TO% syntax:
echo !m:^&=^^^&! | clip
On the command line, "cmd /v" enables delayed expansion:
cmd /v /c echo !m!
This works even when writing to a pipe
cmd /v /c echo !m! | clip
Simple.
You are looking for --build-arg
and the ARG
instruction. These are new as of Docker 1.9. Check out https://docs.docker.com/engine/reference/builder/#arg. This will allow you to add ARG arg
to the Dockerfile
and then build with docker build --build-arg arg=2.3 .
.
You can use the JavaScript String concat() Method,
var str1 = "Hello ";
var str2 = "world!";
var res = str1.concat(str2); //will return "Hello world!"
Its syntax is:
string.concat(string1, string2, ..., stringX)
The variable $token
is not being retrieved from the session when it's in there
It could be that the plugin is case-sensitive. Try inputting Te
instead of te
. You can probably have your results setup to not be case-sensitive. This question might help.
For a custom sort function on an Array
, you can use any JavaScript function and pass it as parameter to an Array
's sort()
method like this:
var array = ['White 023', 'White', 'White flower', 'Teatr'];_x000D_
_x000D_
array.sort(function(x, y) {_x000D_
if (x < y) {_x000D_
return -1;_x000D_
}_x000D_
if (x > y) {_x000D_
return 1;_x000D_
}_x000D_
return 0;_x000D_
});_x000D_
_x000D_
// Teatr White White 023 White flower_x000D_
document.write(array);
_x000D_
I know this is an old thread but thought I should mention that the extern
keyword. I've recently ran into this issue and solved as follows
Helper.h
namespace DX
{
extern inline void ThrowIfFailed(HRESULT hr);
}
Helper.cpp
namespace DX
{
inline void ThrowIfFailed(HRESULT hr)
{
if (FAILED(hr))
{
std::stringstream ss;
ss << "#" << hr;
throw std::exception(ss.str().c_str());
}
}
}
SSIS is a very good way to do this. This can be then scheduled using SQL Server Agent jobs.
#define M_LOG2E 1.44269504088896340736 // log2(e)
inline long double log2(const long double x){
return log(x) * M_LOG2E;
}
(multiplication may be faster than division)
You're asking how to add a dimension to a NumPy array, so that that dimension can then be grown to accommodate new data. A dimension can be added as follows:
image = image[..., np.newaxis]
You can use the SO_RCVTIMEO and SO_SNDTIMEO socket options to set timeouts for any socket operations, like so:
struct timeval timeout;
timeout.tv_sec = 10;
timeout.tv_usec = 0;
if (setsockopt (sockfd, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout,
sizeof(timeout)) < 0)
error("setsockopt failed\n");
if (setsockopt (sockfd, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout,
sizeof(timeout)) < 0)
error("setsockopt failed\n");
Edit: from the setsockopt
man page:
SO_SNDTIMEO
is an option to set a timeout value for output operations. It accepts a struct timeval parameter with the number of seconds and microseconds used to limit waits for output operations to complete. If a send operation has blocked for this much time, it returns with a partial count or with the error EWOULDBLOCK if no data were sent. In the current implementation, this timer is restarted each time additional data are delivered to the protocol, implying that the limit applies to output portions ranging in size from the low-water mark to the high-water mark for output.
SO_RCVTIMEO
is an option to set a timeout value for input operations. It accepts a struct timeval parameter with the number of seconds and microseconds used to limit waits for input operations to complete. In the current implementation, this timer is restarted each time additional data are received by the protocol, and thus the limit is in effect an inactivity timer. If a receive operation has been blocked for this much time without receiving additional data, it returns with a short count or with the error EWOULDBLOCK if no data were received. The struct timeval parameter must represent a positive time interval; otherwise, setsockopt() returns with the error EDOM.
Because QuerySets implement the Python __or__
operator (|
), or union, it just works. As you'd expect, the |
binary operator returns a QuerySet
so order_by()
, .distinct()
, and other queryset filters can be tacked on to the end.
combined_queryset = User.objects.filter(income__gte=5000) | User.objects.filter(income__isnull=True)
ordered_queryset = combined_queryset.order_by('-income')
Update 2019-06-20: This is now fully documented in the Django 2.1 QuerySet API reference. More historic discussion can be found in DjangoProject ticket #21333.
I started with the code from Dominic Barnes, incorporated the feedback from cWoDeR and I still had problems with the breadcrumbs at the third level when I used a sub-directory. So I rewrote it and have included the code below.
Note that I have set up my web site structure such that pages to be subordinate to (linked from) a page at the root level are set up as follows:
Create a folder with the EXACT same name as the file (including capitalization), minus the suffix, as a folder at the root level
place all subordinate files/pages into this folder
(eg, if want sobordinate pages for Customers.php:
create a folder called Customers at the same level as Customers.php
add an index.php file into the Customers folder which redirects to the calling page for the folder (see below for code)
This structure will work for multiple levels of subfolders.
Just make sure you follow the file structure described above AND insert an index.php file with the code shown in each subfolder.
The code in the index.php page in each subfolder looks like:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Redirected</title>
</head>
<body>
<?php
$root_dir = "web_root/" ;
$last_dir=array_slice(array_filter(explode('/',$_SERVER['PHP_SELF'])),-2,1,false) ;
$path_to_redirect = "/".$root_dir.$last_dir[0].".php" ;
header('Location: '.$path_to_redirect) ;
?>
</body>
</html>
If you use the root directory of the server as your web root (ie /var/www/html) then set $root_dir="": (do NOT leave the trailing "/" in). If you use a subdirectory for your web site (ie /var/www/html/web_root then set $root_dir = "web_root/"; (replace web_root with the actual name of your web directory)(make sure to include the trailing /)
at any rate, here is my (derivative) code:
<?php
// Big Thank You to the folks on StackOverflow
// See http://stackoverflow.com/questions/2594211/php-simple-dynamic-breadcrumb
// Edited to enable using subdirectories to /var/www/html as root
// eg, using /var/www/html/<this folder> as the root directory for this web site
// To enable this, enter the name of the subdirectory being used as web root
// in the $directory2 variable below
// Make sure to include the trailing "/" at the end of the directory name
// eg use $directory2="this_folder/" ;
// do NOT use $directory2="this_folder" ;
// If you actually ARE using /var/www/html as the root directory,
// just set $directory2 = "" (blank)
// with NO trailing "/"
// This function will take $_SERVER['REQUEST_URI'] and build a breadcrumb based on the user's current path
function breadcrumbs($separator = ' » ' , $home = 'Home')
{
// This sets the subdirectory as web_root (If you want to use a subdirectory)
// If you do not use a web_root subdirectory, set $directory2=""; (NO trailing /)
$directory2 = "web_root/" ;
// This gets the REQUEST_URI (/path/to/file.php), splits the string (using '/') into an array, and then filters out any empty values
$path = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH) ;
$path_array = array_filter(explode('/',$path)) ;
// This line of code accommodates using a subfolder (/var/www/html/<this folder>) as root
// This removes the first item in the array path so it doesn't repeat
if ($directory2 != "")
{
array_shift($path_array) ;
}
// This will build our "base URL" ... Also accounts for HTTPS :)
$base = ($_SERVER['HTTPS'] ? 'https' : 'http') . '://' . $_SERVER['HTTP_HOST'] . '/'. $directory2 ;
// Initialize a temporary array with our breadcrumbs. (starting with our home page, which I'm assuming will be the base URL)
$breadcrumbs = Array("<a href=\"$base\">$home</a>") ;
// Get the index for the last value in our path array
$last = end($path_array) ;
// Initialize the counter
$crumb_counter = 2 ;
// Build the rest of the breadcrumbs
foreach ($path_array as $crumb)
{
// Our "title" is the text that will be displayed representing the filename without the .suffix
// If there is no "." in the crumb, it is a directory
if (strpos($crumb,".") == false)
{
$title = $crumb ;
}
else
{
$title = substr($crumb,0,strpos($crumb,".")) ;
}
// If we are not on the last index, then create a hyperlink
if ($crumb != $last)
{
$calling_page_array = array_slice(array_values(array_filter(explode('/',$path))),0,$crumb_counter,false) ;
$calling_page_path = "/".implode('/',$calling_page_array).".php" ;
$breadcrumbs[] = "<a href=".$calling_page_path.">".$title."</a>" ;
}
// Otherwise, just display the title
else
{
$breadcrumbs[] = $title ;
}
$crumb_counter = $crumb_counter + 1 ;
}
// Build our temporary array (pieces of bread) into one big string :)
return implode($separator, $breadcrumbs) ;
}
// <p><?= breadcrumbs() ? ></p>
// <p><?= breadcrumbs(' > ') ? ></p>
// <p><?= breadcrumbs(' ^^ ', 'Index') ? ></p>
?>
to test a specific target directory
if [ -d $target_dir ]; then
ls_contents=$(ls -1 $target_dir | xargs);
if [ ! -z "$ls_contents" -a "$ls_contents" != "" ]; then
echo "is not empty";
else
echo "is empty";
fi;
else
echo "directory does not exist";
fi;
To get mod_rewrite to work for me in Apache 2.4, I had to add the "Require all granted" line below.
<Directory /var/www>
# Required if running apache > 2.4
Require all granted
RewriteEngine on
RewriteRule ^cachebust-([a-z0-9]+)\/(.*) /$2 [L]
</Directory>
supposedly a similar requirement exists for Apache 2.2 as well, if you're using that:
<Directory /var/www>
# Required if running apache 2.2
Order allow,deny
Allow from all
RewriteEngine on
RewriteRule ^cachebust-([a-z0-9]+)\/(.*) /$2 [L]
</Directory>
Note that an ErrorDocument 404
directive can sometimes override these things as well, so if it's not working try commenting out your ErrorDocument directive and see if it works. The above example can be used to ensure a site isn't served from cache by including a subfolder in the path, though the files reside at the root of the server.
My preferred solution:
function processArray(arr, fn) {
return arr.reduce(
(p, v) => p.then((a) => fn(v).then(r => a.concat([r]))),
Promise.resolve([])
);
}
It's not fundamentally different from others published here but:
Example usage:
const numbers = [0, 4, 20, 100];
const multiplyBy3 = (x) => new Promise(res => res(x * 3));
// Prints [ 0, 12, 60, 300 ]
processArray(numbers, multiplyBy3).then(console.log);
Tested on reasonable current Chrome (v59) and NodeJS (v8.1.2).
Try
ps -ef | grep "KEYWORD" | awk '{print $2}'
That command should give you the PID of the processes with KEYWORD in them. In this instance, awk
is returning what is in the 2nd column from the output.
Spring source code to explain how ApplicationContextAware work
when you use ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
In AbstractApplicationContext
class,the refresh()
method have the following code:
// Prepare the bean factory for use in this context.
prepareBeanFactory(beanFactory);
enter this method,beanFactory.addBeanPostProcessor(new ApplicationContextAwareProcessor(this));
will add ApplicationContextAwareProcessor to AbstractrBeanFactory.
protected void prepareBeanFactory(ConfigurableListableBeanFactory beanFactory) {
// Tell the internal bean factory to use the context's class loader etc.
beanFactory.setBeanClassLoader(getClassLoader());
beanFactory.setBeanExpressionResolver(new StandardBeanExpressionResolver(beanFactory.getBeanClassLoader()));
beanFactory.addPropertyEditorRegistrar(new ResourceEditorRegistrar(this, getEnvironment()));
// Configure the bean factory with context callbacks.
beanFactory.addBeanPostProcessor(new ApplicationContextAwareProcessor(this));
...........
When spring initialize bean in AbstractAutowireCapableBeanFactory
,
in method initializeBean
,call applyBeanPostProcessorsBeforeInitialization
to implement the bean post process. the process include inject the applicationContext.
@Override
public Object applyBeanPostProcessorsBeforeInitialization(Object existingBean, String beanName)
throws BeansException {
Object result = existingBean;
for (BeanPostProcessor beanProcessor : getBeanPostProcessors()) {
result = beanProcessor.postProcessBeforeInitialization(result, beanName);
if (result == null) {
return result;
}
}
return result;
}
when BeanPostProcessor implement Objectto execute the postProcessBeforeInitialization method,for example ApplicationContextAwareProcessor
that added before.
private void invokeAwareInterfaces(Object bean) {
if (bean instanceof Aware) {
if (bean instanceof EnvironmentAware) {
((EnvironmentAware) bean).setEnvironment(this.applicationContext.getEnvironment());
}
if (bean instanceof EmbeddedValueResolverAware) {
((EmbeddedValueResolverAware) bean).setEmbeddedValueResolver(
new EmbeddedValueResolver(this.applicationContext.getBeanFactory()));
}
if (bean instanceof ResourceLoaderAware) {
((ResourceLoaderAware) bean).setResourceLoader(this.applicationContext);
}
if (bean instanceof ApplicationEventPublisherAware) {
((ApplicationEventPublisherAware) bean).setApplicationEventPublisher(this.applicationContext);
}
if (bean instanceof MessageSourceAware) {
((MessageSourceAware) bean).setMessageSource(this.applicationContext);
}
if (bean instanceof ApplicationContextAware) {
((ApplicationContextAware) bean).setApplicationContext(this.applicationContext);
}
}
}
I think one can end up in this position with older versions of mysql already installed. I had the same problem and none of the above solutions worked for me. I fixed it thus:
Used brew's remove
& cleanup
commands, unloaded the launchctl
script, then deleted the mysql directory in /usr/local/var
, deleted my existing /etc/my.cnf
(leave that one up to you, should it apply) and launchctl plist
Updated the string for the plist. Note also your alternate security script directory will be based on which version of MySQL you are installing.
Step-by-step:
brew remove mysql
brew cleanup
launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
rm ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
sudo rm -rf /usr/local/var/mysql
I then started from scratch:
brew install mysql
ran the commands brew suggested: (see note: below)
unset TMPDIR
mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp
Start mysql with mysql.server start
command, to be able to log on it
Used the alternate security script:
/usr/local/Cellar/mysql/5.5.10/bin/mysql_secure_installation
Followed the launchctl
section from the brew package script output such as,
#start
launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
#stop
launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
Note: the --force
bit on brew cleanup
will also cleanup outdated kegs, think it's a new-ish homebrew feature.
Note the second: a commenter says step 2 is not required. I don't want to test it, so YMMV!