import csv
dict = {"Key Header":"Value Header", "key1":"value1", "key2":"value2"}
with open("test.csv", "w") as f:
writer = csv.writer(f)
for i in dict:
writer.writerow([i, dict[i]])
f.close()
A regular expression will do the trick with very little code:
import re
...
if re.match("^[A-Za-z0-9_-]*$", my_little_string):
# do something here
You are sending a array of string
var usersRoles = [];
jQuery("#dualSelectRoles2 option").each(function () {
usersRoles.push(jQuery(this).val());
});
So change model type accordingly
public ActionResult AddUser(List<string> model)
{
}
Put
android:duplicateParentState="true"
in child then the views get its drawable state (focused, pressed, etc.) from its direct parent rather than from itself. you can set onclick for parent and it call on child clicked
I solved the problem this way:
Welcome to 2017 these days will using vW
and vH
do the trick
html, body {_x000D_
margin: 0; padding: 0;_x000D_
width: 100%; height: 100%;_x000D_
}_x000D_
_x000D_
ul {_x000D_
background: #CCC;_x000D_
height: 100%;_x000D_
width: 100%;_x000D_
list-style-position: outside;_x000D_
margin: 0; padding: 0;_x000D_
}_x000D_
_x000D_
li {_x000D_
width: 100%;_x000D_
display: table;_x000D_
}_x000D_
_x000D_
img {_x000D_
width: 100%;_x000D_
height: 410px;_x000D_
}_x000D_
_x000D_
.outer-wrapper {_x000D_
position: absolute;_x000D_
width: 100%;_x000D_
height: 100%;_x000D_
top: 0;_x000D_
margin: 0; padding: 0;_x000D_
}_x000D_
_x000D_
.inner-wrapper {_x000D_
display: table-cell;_x000D_
vertical-align: middle;_x000D_
text-align: center;_x000D_
width: 100vw; /* only change is here "%" to "vw" ! */_x000D_
height: 100vh; /* only change is here "%" to "vh" ! */_x000D_
}
_x000D_
<ul>_x000D_
<li>_x000D_
<img src="#">_x000D_
<div class="outer-wrapper">_x000D_
<div class="inner-wrapper">_x000D_
<h1>My Title</h1>_x000D_
<h5>Subtitle</h5>_x000D_
</div>_x000D_
</div>_x000D_
</li>_x000D_
</ul>
_x000D_
git stash
is your friend.
If you have not made the commit yet, just run git stash
. This will save away all of your changes.
Switch to the branch you want the changes on and run git stash pop
.
There are lots of uses for git stash. This is certainly one of the more useful reasons.
An example:
# work on some code
git stash
git checkout correct-branch
git stash pop
You have to write your own method in this case. Use a loop and get each character using charAt(i)
and set it to your Character[]
array using arrayname[i] = string.charAt[i]
.
If you want to have your ls colorized you have to edit your ~/.bash_profile file and add the following line (if not already written) :
source .bashrc
Then you edit or create ~/.bashrc file and write an alias to the ls command :
alias ls="ls -G"
Now you have to type source .bashrc
in a terminal if already launched, or simply open a new terminal.
If you want more options in your ls
juste read the manual ( man ls
). Options are not exactly the same as in a GNU/Linux system.
This can also happen in case you have enabled ProGuard. In buildTypes set minifyEnabled false, shrinkResources false, useProguard false
This workaround worked for me...
<td style="white-space: normal; width:300px;">
Have you tried:
Dim result As String
Dim sheet As Worksheet
Set sheet = ActiveWorkbook.Sheets("Data")
result = Application.WorksheetFunction.VLookup(sheet.Range("AN2"), sheet.Range("AA9:AF20"), 5, False)
You can use below code on onSuccess(LoginResult loginResult)
loginResult.getAccessToken().getUserId();
Yes there is:
ARRAY=()
ARRAY+=('foo')
ARRAY+=('bar')
In the context where an assignment statement is assigning a value to a shell variable or array index (see Arrays), the ‘+=’ operator can be used to append to or add to the variable's previous value.
Here is the monotouch equivalent if anyone needs it:
/// <summary>
/// Measures the height of the string for the given width.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="font">The font.</param>
/// <param name="width">The width.</param>
/// <param name="padding">The padding.</param>
/// <returns></returns>
public static float MeasureStringHeightForWidth(this string text, UIFont font, float width, float padding = 20)
{
NSAttributedString attributedString = new NSAttributedString(text, new UIStringAttributes() { Font = font });
RectangleF rect = attributedString.GetBoundingRect(new SizeF(width, float.MaxValue), NSStringDrawingOptions.UsesLineFragmentOrigin, null);
return rect.Height + padding;
}
which can be used like this:
public override float GetHeightForRow(UITableView tableView, NSIndexPath indexPath)
{
//Elements is a string array
return Elements[indexPath.Row].MeasureStringHeightForWidth(UIFont.SystemFontOfSize(UIFont.LabelFontSize), tableView.Frame.Size.Width - 15 - 30 - 15);
}
I found it much easier to use tokens than SSH keys. I couldn't find much good documentation on this, so I came across this solution mainly through trial and error. Further, installing from pip and setuptools have some subtle differences; but this way should work for both.
GitHub don't (currently, as of August 2016) offer an easy way to get the zip / tarball of private repositories. So you need to point setuptools to tell setuptools that you're pointing to a Git repository:
from setuptools import setup
import os
# Get the deploy key from https://help.github.com/articles/git-automation-with-oauth-tokens/
github_token = os.environ['GITHUB_TOKEN']
setup(
# ...
install_requires='package',
dependency_links = [
'git+https://{github_token}@github.com/user/{package}.git/@{version}#egg={package}-0'
.format(github_token=github_token, package=package, version=master)
]
A couple of notes here:
0
) at the end of the link, even if there's isn't any package on PyPI. This has to be a actual number, not a word.git+
to tell setuptools it's to clone the repository, rather than pointing at a zip / tarballversion
can be a branch, a tag, or a commit hash--process-dependency-links
if installing from pipSee this JSFiddle
input[type="text"]_x000D_
{_x000D_
border: 0;_x000D_
border-bottom: 1px solid red;_x000D_
outline: 0;_x000D_
}
_x000D_
<form>_x000D_
<input type="text" value="See! ONLY BOTTOM BORDER!" />_x000D_
</form>
_x000D_
hosts file:
1.2.3.4 google.com
1.2.3.4 - ip of your server.
Run script on the server for redirecting users to url that you want.
Join on one-to-many relation in JPQL looks as follows:
select b.fname, b.lname from Users b JOIN b.groups c where c.groupName = :groupName
When several properties are specified in select
clause, result is returned as Object[]
:
Object[] temp = (Object[]) em.createNamedQuery("...")
.setParameter("groupName", groupName)
.getSingleResult();
String fname = (String) temp[0];
String lname = (String) temp[1];
By the way, why your entities are named in plural form, it's confusing. If you want to have table names in plural, you may use @Table
to specify the table name for the entity explicitly, so it doesn't interfere with reserved words:
@Entity @Table(name = "Users")
public class User implements Serializable { ... }
As a quick solution you can copy the JavaFX runtime JAR file and those referenced from Oracle JRE(JDK) or any self-contained application that uses JavaFX(e.g. JavaFX Scene Builder 2.0):
cp <JRE_WITH_JAVAFX_HOME>/lib/ext/jfxrt.jar <JRE_HOME>/lib/ext/
cp <JRE_WITH_JAVAFX_HOME>/lib/javafx.properties <JRE_HOME>/lib/
cp <JRE_WITH_JAVAFX_HOME>/lib/amd64/libprism_* <JRE_HOME>/lib/amd64/
cp <JRE_WITH_JAVAFX_HOME>/lib/amd64/libglass.so <JRE_HOME>/lib/amd64/
cp <JRE_WITH_JAVAFX_HOME>/lib/amd64/libjavafx_* <JRE_HOME>/lib/amd64/
just make sure you have the gtk 2.18 or higher
iirc :
cat filename.txt | awk '{ print $2 $4 }'
or, as mentioned in the comments :
awk '{ print $2 $4 }' filename.txt
Unchecking "Is Library" in the project Properties worked for me.
This occurs typically when the stmt is reused butexpecting a different ResultSet, try creting a new stmt and executeQuery. It fixed it for me!
I solved the simmilar problem, when i tried to push to repo via gitlab ci/cd pipeline by the command "gem install rake && bundle install"
Most of the MVC helper methods have a XXXFor variant. They are intended to be used in conjunction with a concrete model class. The idea is to allow the helper to derive the appropriate "name" attribute for the form-input control based on the property you specify in the lambda. This means that you get to eliminate "magic strings" that you would otherwise have to employ to correlate the model properties with your views. For example:
Html.Hidden("Name", "Value")
Will result in:
<input id="Name" name="Name" type="hidden" value="Value">
In your controller, you might have an action like:
[HttpPost]
public ActionResult MyAction(MyModel model)
{
}
And a model like:
public class MyModel
{
public string Name { get; set; }
}
The raw Html.Hidden
we used above will get correlated to the Name
property in the model. However, it's somewhat distasteful that the value "Name" for the property must be specified using a string ("Name"). If you rename the Name
property on the Model, your code will break and the error will be somewhat difficult to figure out. On the other hand, if you use HiddenFor
, you get protected from that:
Html.HiddenFor(x => x.Name, "Value");
Now, if you rename the Name
property, you will get an explicit runtime error indicating that the property can't be found. In addition, you get other benefits of static analysis, such as getting a drop-down of the members after typing x.
.
I know, this is an old question. But just for the sake of completeness, the lambda version.
Map<String, List<Item>> items = new HashMap<>();
items.computeIfAbsent(key, k -> new ArrayList<>()).add(item);
#! /bin/bash
timeout=10
interval=1
delay=3
(
((t = timeout)) || :
while ((t > 0)); do
echo "$t"
sleep $interval
# Check if the process still exists.
kill -0 $$ 2> /dev/null || exit 0
((t -= interval)) || :
done
# Be nice, post SIGTERM first.
{ echo SIGTERM to $$ ; kill -s TERM $$ ; sleep $delay ; kill -0 $$ 2> /dev/null && { echo SIGKILL to $$ ; kill -s KILL $$ ; } ; }
) &
exec "$@"
There is great way of executing SQL scripts from Java without reading them yourself as long as you don't mind having a dependency on Ant. In my opinion such a dependency is very well justified in your case. Here is sample code, where SQLExec class lives in ant.jar:
private void executeSql(String sqlFilePath) {
final class SqlExecuter extends SQLExec {
public SqlExecuter() {
Project project = new Project();
project.init();
setProject(project);
setTaskType("sql");
setTaskName("sql");
}
}
SqlExecuter executer = new SqlExecuter();
executer.setSrc(new File(sqlFilePath));
executer.setDriver(args.getDriver());
executer.setPassword(args.getPwd());
executer.setUserid(args.getUser());
executer.setUrl(args.getUrl());
executer.execute();
}
another option is to add a method like this
def select_option(css_selector, value)
find(:css, css_selector).find(:option, value).select_option
end
Either encode the needed XML entities or use CDATA.
<arg0>
<!--Optional:-->
<parameter1><test>like this</test></parameter1>
<!--Optional:-->
<parameter2><![CDATA[<test>or like this</test>]]></parameter2>
</arg0>
Basically:
$lastDate = date("Y-m-t", strtotime($query_d));
Date t parameter return days number in current month.
It may be that it's not loading the template you expect. I added a new class that inherited from UpdateView
- I thought it would automatically pick the template from what I named my class, but it actually loaded it based on the model
property on the class, which resulted in another (wrong) template being loaded. Once I explicitly set template_name
for the new class, it worked fine.
This what I did to show the confirmation message just when I have unsaved data
window.onbeforeunload = function () {
if (isDirty) {
return "There are unsaved data.";
}
return undefined;
}
returning "undefined" will disable the confirmation
Note: returning "null" will not work with IE
Also you can use "undefined" to disable the confirmation
window.onbeforeunload = undefined;
There is one example where in
actually kills your performance.
If you use in
on a O(1) container that only implements __getitem__
and has_key()
but not __contains__
you will turn an O(1) search into an O(N) search (as in
falls back to a linear search via __getitem__
).
Fix is obviously trivial:
def __contains__(self, x):
return self.has_key(x)
There are other ways to achieve this here: (Plot correlation matrix into a graph), but I like your version with the correlations in the boxes. Is there a way to add the variable names to the x and y column instead of just those index numbers? For me, that would make this a perfect solution. Thanks!
edit: I was trying to comment on the post by [Marc in the box], but I clearly don't know what I'm doing. However, I did manage to answer this question for myself.
if d is the matrix (or the original data frame) and the column names are what you want, then the following works:
axis(1, 1:dim(d)[2], colnames(d), las=2)
axis(2, 1:dim(d)[2], colnames(d), las=2)
las=0 would flip the names back to their normal position, mine were long, so I used las=2 to make them perpendicular to the axis.
edit2: to suppress the image() function printing numbers on the grid (otherwise they overlap your variable labels), add xaxt='n', e.g.:
image(x=seq(dim(x)[2]), y=seq(dim(y)[2]), z=COR, col=rev(heat.colors(20)), xlab="x column", ylab="y column", xaxt='n')
Some apps are marked as less secure by google, so you just need to give access for those app so google will allow you to access its services to you.
Create a method in your class like this: [as @Holger said here.]
public static void clrscr(){
//Clears Screen in java
try {
if (System.getProperty("os.name").contains("Windows"))
new ProcessBuilder("cmd", "/c", "cls").inheritIO().start().waitFor();
else
Runtime.getRuntime().exec("clear");
} catch (IOException | InterruptedException ex) {}
}
This works for windows at least, I have not checked for Linux so far. If anyone checks it for Linux please let me know if it works (or not).
As an alternate method is to write this code in clrscr()
:
for(int i = 0; i < 80*300; i++) // Default Height of cmd is 300 and Default width is 80
System.out.print("\b"); // Prints a backspace
I will not recommend you to use this method.
They are access modifiers and help us implement Encapsulation (or information hiding). They tell the compiler which other classes should have access to the field or method being defined.
private
- Only the current class will have access to the field or method.
protected
- Only the current class and subclasses (and sometimes also same-package classes) of this class will have access to the field or method.
public
- Any class can refer to the field or call the method.
This assumes these keywords are used as part of a field or method declaration within a class definition.
I think there's no big difference between deflate and gzip, because gzip basically is just a header wrapped around deflate (see RFCs 1951 and 1952).
I think you mean to update it back to the OLD
password, when the NEW one is not supplied.
DROP TRIGGER IF EXISTS upd_user;
DELIMITER $$
CREATE TRIGGER upd_user BEFORE UPDATE ON `user`
FOR EACH ROW BEGIN
IF (NEW.password IS NULL OR NEW.password = '') THEN
SET NEW.password = OLD.password;
ELSE
SET NEW.password = Password(NEW.Password);
END IF;
END$$
DELIMITER ;
However, this means a user can never blank out a password.
DELIMITER $$
CREATE TRIGGER upd_user BEFORE UPDATE ON `user`
FOR EACH ROW BEGIN
IF (NEW.password IS NULL OR NEW.password = '' OR NEW.password = OLD.password) THEN
SET NEW.password = OLD.password;
ELSE
SET NEW.password = Password(NEW.Password);
END IF;
END$$
DELIMITER ;
Specifying a max-width
or fixed width doesn't work for all situations, and the table should be fluid and auto-space its cells. That's what tables are for. Works on IE9 and other browsers.
Use this: http://jsfiddle.net/maruxa1j/
table {
width: 100%;
}
.first {
width: 50%;
}
.ellipsis {
position: relative;
}
.ellipsis:before {
content: ' ';
visibility: hidden;
}
.ellipsis span {
position: absolute;
left: 0;
right: 0;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
_x000D_
<table border="1">
<thead>
<tr>
<th>Header 1</th>
<th>Header 2</th>
<th>Header 3</th>
<th>Header 4</th>
</tr>
</thead>
<tbody>
<tr>
<td class="ellipsis first"><span>This Text Overflows and is too large for its cell.</span></td>
<td class="ellipsis"><span>This Text Overflows and is too large for its cell.</span></td>
<td class="ellipsis"><span>This Text Overflows and is too large for its cell.</span></td>
<td class="ellipsis"><span>This Text Overflows and is too large for its cell.</span></td>
</tr>
</tbody>
</table>
_x000D_
You simply need to upgrade your Tomcat version, to Tomcat 8.0.xx. Java8 <-> Tomcat8
This is the configuration that I have been using and it has always worked out well
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="colorControlNormal">@color/colorAccent</item>
<item name="colorControlActivated">@color/colorAccent</item>
<item name="colorControlHighlight">@color/colorAccent</item>
</style>
If need to copy from another table then need to copy structure first:
DataTable copyDt = existentDt.Clone();
copyDt.ImportRow(existentDt.Rows[0]);
npm install --save bootstrap
afterwards, inside angular.json
(previously .angular-cli.json
) inside the project's root folder, find styles and add the bootstrap css file like this:
for angular 6
"styles": [
"../node_modules/bootstrap/dist/css/bootstrap.min.css",
"styles.css"
],
for angular 7
"styles": [
"node_modules/bootstrap/dist/css/bootstrap.min.css",
"src/styles.css"
],
Your code can get messy fast when dealing with CSS3 transitions. I would recommend using a plugin such as jQuery Transit that handles the complexity of CSS3 animations/transitions.
Moreover, the plugin uses webkit-transform rather than webkit-transition, which allows for mobile devices to use hardware acceleration in order to give your web apps that native look and feel when the animations occur.
Javascript:
$("#startTransition").on("click", function()
{
if( $(".boxOne").is(":visible"))
{
$(".boxOne").transition({ x: '-100%', opacity: 0.1 }, function () { $(".boxOne").hide(); });
$(".boxTwo").css({ x: '100%' });
$(".boxTwo").show().transition({ x: '0%', opacity: 1.0 });
return;
}
$(".boxTwo").transition({ x: '-100%', opacity: 0.1 }, function () { $(".boxTwo").hide(); });
$(".boxOne").css({ x: '100%' });
$(".boxOne").show().transition({ x: '0%', opacity: 1.0 });
});
Most of the hard work of getting cross-browser compatibility is done for you as well and it works like a charm on mobile devices.
Looking at the neural network from the outside, it is just a function that takes some arguments and produces a result. As with all functions, it has a domain (i.e. a set of legal arguments). You have to normalize the values that you want to pass to the neural net in order to make sure it is in the domain. As with all functions, if the arguments are not in the domain, the result is not guaranteed to be appropriate.
The exact behavior of the neural net on arguments outside of the domain depends on the implementation of the neural net. But overall, the result is useless if the arguments are not within the domain.
MDN has the following to say about string.concat()
:
It is strongly recommended to use the string concatenation operators (+, +=) instead of this method for perfomance reasons
Also see the link by @Bergi.
I had the same issue with spring
MarshallingMessageConverter
and by pre-proccess code.
Mayby someone will need reason: BytesMessage #readBytes - reading bytes.. and i forgot that reading is one direction operation. You can not read twice.
Just wanted to add that the "run a webserver" answer seems quite daunting, but if you have python on your system (installed by default at least on MacOS and any Linux distribution) it's as easy as:
python -m http.server # with python3
or
python -m SimpleHTTPServer # with python2
So if you have your html file myfile.html
in a folder, say mydir
, all you have to do is:
cd /path/to/mydir
python -m http.server # or the python2 alternative above
Then point your browser to:
http://localhost:8000/myfile.html
And you are done! Works on all browsers, without disabling web security, allowing local files, or even restarting the browser with command line options.
#!/bin/ksh
variable1=$(
echo "set feed off
set pages 0
select count(*) from table;
exit
" | sqlplus -s username/password@oracle_instance
)
echo "found count = $variable1"
Install-Package Microsoft.AspNet.WebApi.Core -version 5.2.3
Then in the project Add Reference -> Browse. Push the browse button and go to the C:\Users\UserName\Documents\Visual Studio 2015\Projects\ProjectName\packages\Microsoft.AspNet.Mvc.5.2.3\lib\net45 and add the needed .dll file
Another way of doing it would be:
stuff = Object.assign(stuff, {$(this).attr('value'):$(this).attr('checked')});
Read more here: Object.assign()
ggplot(df) + labs(legend = '<legend_title>')
You can return FileResult with this methods:
1: Return FileStreamResult
[HttpGet("get-file-stream/{id}"]
public async Task<FileStreamResult> DownloadAsync(string id)
{
var fileName="myfileName.txt";
var mimeType="application/....";
var stream = await GetFileStreamById(id);
return new FileStreamResult(stream, mimeType)
{
FileDownloadName = fileName
};
}
2: Return FileContentResult
[HttpGet("get-file-content/{id}"]
public async Task<FileContentResult> DownloadAsync(string id)
{
var fileName="myfileName.txt";
var mimeType="application/....";
var fileBytes = await GetFileBytesById(id);
return new FileContentResult(fileBytes, mimeType)
{
FileDownloadName = fileName
};
}
There is no best IDE. You make it as good as you get used using it.
@JsonFormat(pattern = "yyyy-MM-dd")
private LocalDate localDate;
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
private LocalDateTime localDateTime;
no dependency required with Spring boot >= 2.2+
There's no need for a parent POM.
You can omit the distributionManagement part entirely in your poms and set it either on your build server or in settings.xml.
To do it on the build server, just pass to the mvn
command:
-DaltSnapshotDeploymentRepository=snapshots::default::https://YOUR_NEXUS_URL/snapshots
-DaltReleaseDeploymentRepository=releases::default::https://YOUR_NEXUS_URL/releases
See https://maven.apache.org/plugins/maven-deploy-plugin/deploy-mojo.html for details which options can be set.
It's also possible to set this in your settings.xml
.
Just create a profile there which is enabled and contains the property.
Example settings.xml:
<settings>
[...]
<profiles>
<profile>
<id>nexus</id>
<properties>
<altSnapshotDeploymentRepository>snapshots::default::https://YOUR_NEXUS_URL/snapshots</altSnapshotDeploymentRepository>
<altReleaseDeploymentRepository>releases::default::https://YOUR_NEXUS_URL/releases</altReleaseDeploymentRepository>
</properties>
</profile>
</profiles>
<activeProfiles>
<activeProfile>nexus</activeProfile>
</activeProfiles>
</settings>
Make sure that credentials for "snapshots" and "releases" are in the <servers>
section of your settings.xml
The properties altSnapshotDeploymentRepository and altReleaseDeploymentRepository are introduced with maven-deploy-plugin version 2.8. Older versions will fail with the error message
Deployment failed: repository element was not specified in the POM inside distributionManagement element or in -DaltDeploymentRepository=id::layout::url parameter
To fix this, you can enforce a newer version of the plug-in:
<build>
<pluginManagement>
<plugins>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8</version>
</plugin>
</plugins>
</pluginManagement>
</build>
Your syntax is wrong:
string[] arr = new string[]{};
or
string[] arr = new string[0];
let's say on the command-line you have:
C:\> C:\Documents and Settings\fred\My Documents\Downloads\google-python-exercises
\google-python-exercises\hello.py John
to make it easier to read, let's just shorten this to:
C:\> hello.py John
argv
represents all the items that come along via the command-line input, but counting starts at zero (0) not one (1): in this case, "hello.py
" is element 0, "John
" is element 1
in other words, sys.argv[0] == 'hello.py'
and sys.argv[1] == 'John'
... but look, how many elements is this? 2, right! so even though the numbers are 0 and 1, there are 2 elements here.
len(sys.argv) >= 2
just checks whether you entered at least two elements. in this case, we entered exactly 2.
now let's translate your code into English:
define main() function:
if there are at least 2 elements on the cmd-line:
set 'name' to the second element located at index 1, e.g., John
otherwise there is only 1 element... the program name, e.g., hello.py:
set 'name' to "World" (since we did not get any useful user input)
display 'Hello' followed by whatever i assigned to 'name'
so what does this mean? it means that if you enter:
hello.py
", the code outputs "Hello World
" because you didn't give a namehello.py John
", the code outputs "Hello John
" because you didhello.py John Paul
", the code still outputs "Hello John
" because it does not save nor use sys.argv[2]
, which was "Paul
" -- can you see in this case that len(sys.argv) == 3
because there are 3 elements in the sys.argv
list?If your sed usage tends to be entirely substitution expressions (as mine tends to be), you can also use perl -pe
instead
$ echo 'foo,bar,baz' | perl -pe 's/,/,\n/g'
foo,
bar,
baz
The regular expression method should work. However what you can also do is lower case the string from the database, lower case the %variables% you have, and then locate the positions and lengths in the lower cased string from the database. Remember, positions in a string don't change just because its lower cased.
Then using a loop that goes in reverse (its easier, if you do not you will have to keep a running count of where later points move to) remove from your non-lower cased string from the database the %variables% by their position and length and insert the replacement values.
Button cancelBTN = new Button();
cancelBTN.Size = new Size(0, 0);
cancelBTN.TabStop = false;
this.Controls.Add(cancelBTN);
this.CancelButton = cancelBTN;
No, you cannot. Google Plus has been discontinued. Clicking any link for any answer here brings me to this text:
Google+ is no longer available for consumer (personal) and brand accounts
From all of us on the Google+ team,
thank you for making Google+ such a special place.
There is one section that reads that the product is continued for "G Suite," but as of Feb., 2020, the chat and social service listed for G Suite is Hangouts, not Google+.
The format https://plus.google.com/share?url=YOUR_URL_HERE
was documented at https://developers.google.com/+/web/share/
, but this documentation has since been removed, probably because no part of Google+ continues in development. If you are feeling nostalgic, you can see what the API used to say with an Archive.org link.
When remoted into a machine (target is Windows XP anyway; I am not sure about target Windows Vista), although Shutdown on the start menu is replaced by Disconnect Session or something like that, there should be one called 'Windows Security' which also does the same thing as Ctrl + Alt + End as pointed to by Owen.
For people using Windows and struggling to download repo as zip from terminal:
url -L http://github.com/GorvGoyl/Notion-Boost-browser-extension/archive/master.zip --output master.zip
If you git stash pop
(with no conflicts) it will remove the stash after it is applied. But if you git stash apply
it will apply the patch without removing it from the stash list. Then you can revert the unwanted changes with git checkout -- files...
The answer in my view is related to whether you have a tangible problem to solve or if you just want to learn for example to be prepared for a possible new job. If you have a problem then you are in better shape. You can start by looking around and seeing how other people went about solving that problem. Languages in general you should be able to pick up fairly quickly (after all you hold an MS in EE, no small feat IMO).
What you need to be on the lookout for is good programming practices. You'll probably see yourself asking "why is this method so small", "why is this method empty and what the heck is this abstract word doing here". That will give you perspective beyond syntax towards good writing.
i would suggest the following way:
@PropertySource(ignoreResourceNotFound = true, value = "classpath:otherprops.properties")
@Controller
public class ClassA {
@Value("${myName}")
private String name;
@RequestMapping(value = "/xyz")
@ResponseBody
public void getName(){
System.out.println(name);
}
}
Here your new properties file name is "otherprops.properties" and the property name is "myName". This is the simplest implementation to access properties file in spring boot version 1.5.8.
add delim_whitespace=True
argument, it's faster than regex.
PGPORT=5432
PGHOST="my.database.domain.com"
PGUSER="postgres"
PGDB="mydb"
createdb -h $PGHOST -p $PGPORT -U $PGUSER $PGDB
/^(?!.*\.$)((?!0\d)(1?\d?\d|25[0-5]|2[0-4]\d)(\.|$)){4}$/
Full credit to oriadam. I would have commented below his/her answer to suggest the double zero change I made, but I do not have enough reputation here yet...
change:
-(?!0) Because IPv4 addresses starting with zeros ('0.248.42.223') are valid (but not usable)
+(?!0\d) Because IPv4 addresses with leading zeros ('63.14.209.00' and '011.012.013.014') can sometimes be interpreted as octal
You can know list of all ports running in system along with its details (pid, address etc.) :
netstat -tulpn
You can know details of a particular port number by providing port number in following command :
sudo netstat -lutnp | grep -w '{port_number}'
ex: sudo netstat -lutnp | grep -w '8080' Details will be provided like this :
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
if you want to kill a process using pid then : kill -9 {PID}
if you want to kill a process using port number : fuser -n tcp {port_number}
use sudo
if you are not able to access any.
It does exactly what the var
does with a scope difference. Now it can not take the name var
since that is already taken.
So it looks that it has taken the next best name which has a semantic in an interesting English language construct.
let myPet = 'dog';
In English it says "Let my pet be a dog"
Most of the answers provided here address the number of incoming requests to your backend webservice, not the number of outgoing requests you can make from your ASP.net application to your backend service.
It's not your backend webservice that is throttling your request rate here, it is the number of open connections your calling application is willing to establish to the same endpoint (same URL).
You can remove this limitation by adding the following configuration section to your machine.config file:
<configuration>
<system.net>
<connectionManagement>
<add address="*" maxconnection="65535"/>
</connectionManagement>
</system.net>
</configuration>
You could of course pick a more reasonable number if you'd like such as 50 or 100 concurrent connections. But the above will open it right up to max. You can also specify a specific address for the open limit rule above rather than the '*' which indicates all addresses.
MSDN Documentation for System.Net.connectionManagement
Another Great Resource for understanding ConnectManagement in .NET
Hope this solves your problem!
EDIT: Oops, I do see you have the connection management mentioned in your code above. I will leave my above info as it is relevant for future enquirers with the same problem. However, please note there are currently 4 different machine.config files on most up to date servers!
There is .NET Framework v2 running under both 32-bit and 64-bit as well as .NET Framework v4 also running under both 32-bit and 64-bit. Depending on your chosen settings for your application pool you could be using any one of these 4 different machine.config files! Please check all 4 machine.config files typically located here:
I got this problem too and I fixed it in this way. I was trying to run mapreduce job locally through Eclipse, after set the configurations, I met this error (in Linux, Virtual Box) To solve it,
file:/usr/lib/Hadoop/client-0.20
, choose the three jars named started
by "slf4j".Then you'll be able to run the job locally. Hope my experience will help someone.
Make sure that destination object is not empty ( null
or undefined
).
You can initialize destination object with empty object like below:
var destinationObj = {};
Object.assign(destinationObj, sourceObj);
For OS X 10.4.x and previous:
int i;
for (i = 0; i < [myArray count]; i++) {
id myArrayElement = [myArray objectAtIndex:i];
...do something useful with myArrayElement
}
For OS X 10.5.x (or iPhone) and beyond:
for (id myArrayElement in myArray) {
...do something useful with myArrayElement
}
The accepted answer is great, but assuming you have Node installed, you can do this much more precisely with the node library "rimraf", which allows globbing patterns. If you use this a lot (I do), just install it globally.
yarn global add rimraf
then, for instance, a pattern I use constantly:
rimraf .\**\node_modules
or for a one-liner that let's you dodge the global install, but which takes slightly longer for the the package dynamic download:
npx rimraf .\**\node_modules
If you want to see what you haven't git add
ed yet:
git diff myfile.txt
or if you want to see already added changes
git diff --cached myfile.txt
The read_sql
docs say this params
argument can be a list, tuple or dict (see docs).
To pass the values in the sql query, there are different syntaxes possible: ?
, :1
, :name
, %s
, %(name)s
(see PEP249).
But not all of these possibilities are supported by all database drivers, which syntax is supported depends on the driver you are using (psycopg2
in your case I suppose).
In your second case, when using a dict, you are using 'named arguments', and according to the psycopg2
documentation, they support the %(name)s
style (and so not the :name
I suppose), see http://initd.org/psycopg/docs/usage.html#query-parameters.
So using that style should work:
df = psql.read_sql(('select "Timestamp","Value" from "MyTable" '
'where "Timestamp" BETWEEN %(dstart)s AND %(dfinish)s'),
db,params={"dstart":datetime(2014,6,24,16,0),"dfinish":datetime(2014,6,24,17,0)},
index_col=['Timestamp'])
The .Cells range isn't limited to ones that are being used, so your code is clearing the content of 1,048,576 rows and 16,384 columns - 17,179,869,184 total cells. That's going to take a while. Just clear the UsedRange instead:
Sheets("Zeros").UsedRange.ClearContents
Alternately, you can delete the sheet and re-add it:
Application.DisplayAlerts = False
Sheets("Zeros").Delete
Application.DisplayAlerts = True
Dim sheet As Worksheet
Set sheet = Sheets.Add
sheet.Name = "Zeros"
CommandArgument='<%#Eval("ScrapId").Tostring()+ Eval("UserId")%>
//added the comment function
Limiting output to two lines of text is possible with CSS, if you set the line-height
and height
of the element, and set overflow:hidden;
:
#someDiv {
line-height: 1.5em;
height: 3em; /* height is 2x line-height, so two lines will display */
overflow: hidden; /* prevents extra lines from being visible */
}
Alternatively, you can use the CSS text-overflow
and white-space
properties to add ellipses, but this only appears to work for a single line.
#someDiv {
line-height: 1.5em;
height: 3em;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
width: 100%;
}
And a demo:
Achieving both multiple lines of text and ellipses appears to be the realm of javascript.
Probably no one is scrolling down this far, but none of the above solutions fixed it for me, but making all my getter methods public
did.
I'd left my getter visibility at package-private; Jackson decided it couldn't find them and blew up. (Using @JsonAutoDetect(getterVisibility=NON_PRIVATE)
only partially fixed it.
Also, you can do it with css selectors:
form#myform input[type='submit']
space beween elements in css elector means searching input[type='submit'] that elements at any depth of parent form#myform element
It's also cleaner to use @JoinTable
when an Entity could be the child in several parent/child relationships with different types of parents. To follow up with Behrang's example, imagine a Task can be the child of Project, Person, Department, Study, and Process.
Should the task
table have 5 nullable
foreign key fields? I think not...
mod_rewrite can only rewrite/redirect requested URIs. So you would need to request /apple/…
to get it rewritten to a corresponding /folder1/…
.
Try this:
RewriteEngine on
RewriteRule ^apple/(.*) folder1/$1
This rule will rewrite every request that starts with the URI path /apple/…
internally to /folder1/…
.
Edit As you are actually looking for the other way round:
RewriteCond %{THE_REQUEST} ^GET\ /folder1/
RewriteRule ^folder1/(.*) /apple/$1 [L,R=301]
This rule is designed to work together with the other rule above. Requests of /folder1/…
will be redirected externally to /apple/…
and requests of /apple/…
will then be rewritten internally back to /folder1/…
.
sed
solution:
echo "a b c" | sed 's/ \+/\n/g'
Result:
a
b
c
I would not unit test code I don't own. What are you testing here, that the MSFT compiler works?
That said, to make this code testable, you almost HAVE to make your data access layer separate from your business logic code. What I do is take all of my EF stuff and put it in a (or multiple) DAO or DAL class which also has a corresponding interface. Then I write my service which will have the DAO or DAL object injected in as a dependency (constructor injection preferably) referenced as the interface. Now the part that needs to be tested (your code) can easily be tested by mocking out the DAO interface and injecting that into your service instance inside your unit test.
//this is testable just inject a mock of IProductDAO during unit testing
public class ProductService : IProductService
{
private IProductDAO _productDAO;
public ProductService(IProductDAO productDAO)
{
_productDAO = productDAO;
}
public List<Product> GetAllProducts()
{
return _productDAO.GetAll();
}
...
}
I would consider live Data Access Layers to be part of integration testing, not unit testing. I have seen guys run verifications on how many trips to the database hibernate makes before, but they were on a project that involved billions of records in their datastore and those extra trips really mattered.
Here's a working example in golang. I searched around and found this page and converted this over to what I needed. Hope someone else can find it useful.
// https://classroom.synonym.com/calculate-trendline-2709.html
package main
import (
"fmt"
"math"
)
func main() {
graph := [][]float64{
{1, 3},
{2, 5},
{3, 6.5},
}
n := len(graph)
// get the slope
var a float64
var b float64
var bx float64
var by float64
var c float64
var d float64
var slope float64
for _, point := range graph {
a += point[0] * point[1]
bx += point[0]
by += point[1]
c += math.Pow(point[0], 2)
d += point[0]
}
a *= float64(n) // 97.5
b = bx * by // 87
c *= float64(n) // 42
d = math.Pow(d, 2) // 36
slope = (a - b) / (c - d) // 1.75
// calculating the y-intercept (b) of the Trendline
var e float64
var f float64
e = by // 14.5
f = slope * bx // 10.5
intercept := (e - f) / float64(n) // (14.5 - 10.5) / 3 = 1.3
// output
fmt.Println(slope)
fmt.Println(intercept)
}
The difference between 'throw new Error' and 'throw someObject' in javascript is that throw new Error wraps the error passed to it in the following format -
{ name: 'Error', message: 'String you pass in the constructor' }
The throw someObject will throw the object as is and will not allow any further code execution from the try block, ie same as throw new Error.
Here is a good explanation about The Error object and throwing your own errors
The Error Object
Just what we can extract from it in an event of an error? The Error object in all browsers support the following two properties:
name: The name of the error, or more specifically, the name of the constructor function the error belongs to.
message: A description of the error, with this description varying depending on the browser.
Six possible values can be returned by the name property, which as mentioned correspond to the names of the error's constructors. They are:
Error Name Description
EvalError An error in the eval() function has occurred.
RangeError Out of range number value has occurred.
ReferenceError An illegal reference has occurred.
SyntaxError A syntax error within code inside the eval() function has occurred.
All other syntax errors are not caught by try/catch/finally, and will
trigger the default browser error message associated with the error.
To catch actual syntax errors, you may use the onerror event.
TypeError An error in the expected variable type has occurred.
URIError An error when encoding or decoding the URI has occurred
(ie: when calling encodeURI()).
Throwing your own errors (exceptions)
Instead of waiting for one of the 6 types of errors to occur before control is automatically transferred from the try block to the catch block, you can also explicitly throw your own exceptions to force that to happen on demand. This is great for creating your own definitions of what an error is and when control should be transferred to catch.
/*
If your delimiters are slash-based, escape it:
\/*
*
means "0 or more of the previous repeatable pattern", which can be a single character, a character class or a group.
It's only blank for you because you have not set the sql_mode. If you set it, then that query will show you the details:
mysql> SELECT @@sql_mode;
+------------+
| @@sql_mode |
+------------+
| |
+------------+
1 row in set (0.00 sec)
mysql> set sql_mode=ORACLE;
Query OK, 0 rows affected (0.00 sec)
mysql> SELECT @@sql_mode;
+----------------------------------------------------------------------------------------------------------------------+
| @@sql_mode |
+----------------------------------------------------------------------------------------------------------------------+
| PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER |
+----------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
Same way you'd hide anything: visibility: hidden;
If you're creating a framework the whole idea is to make it portable. Tying a framework to the app delegate defeats the purpose of building a framework. What is it you need the app delegate for?
As of Python 3.5 and PEP484, the literal ellipsis is used to denote certain types to a static type checker when using the typing module.
Example 1:
Arbitrary-length homogeneous tuples can be expressed using one type and ellipsis, for example
Tuple[int, ...]
Example 2:
It is possible to declare the return type of a callable without specifying the call signature by substituting a literal ellipsis (three dots) for the list of arguments:
def partial(func: Callable[..., str], *args) -> Callable[..., str]:
# Body
I arrived here because I thought I should check in SO if there are adequate answers, after a syntax error that gave me this error, or if I could possibly post an answer myself.
OK, the answers here explain what this error is, so not much more to say, but nevertheless I will give my 2 cents using my words:
This error is caused by the fact that you basically generate a new table with your subquery for the FROM
command.
That's what a derived table
is, and as such, it needs to have an alias
(actually a name reference to it).
So given the following hypothetical query:
SELECT id, key1
FROM (
SELECT t1.ID id, t2.key1 key1, t2.key2 key2, t2.key3 key3
FROM table1 t1
LEFT JOIN table2 t2 ON t1.id = t2.id
WHERE t2.key3 = 'some-value'
) AS tt
So, at the end, the whole subquery inside the FROM
command will produce the table that is aliased as tt
and it will have the following columns id
, key1
, key2
, key3
.
So, then with the initial SELECT
from that table we finally select the id
and key1
from the tt
.
I, for example, use fail()
to indicate tests that are not yet finished (it happens); otherwise, they would show as successful.
This is perhaps due to the fact that I am unaware of some sort of incomplete() functionality, which exists in NUnit.
There may be other ways to get your desired result.
Declare @a int
Declare @b int
SET @a = 3
SET @b=2
SELECT cast((cast(@a as float)/ cast(@b as float)) as float)
It helped me
domNodeToRerender.style.opacity = 0.99;
setTimeout(() => { domNodeToRerender.style.opacity = '' }, 0);
A variation when using xpath in Java using count():
int numberofbodies = Integer.parseInt((String) xPath.evaluate("count(/html/body)", doc));
if( numberofbodies==0) {
// body node missing
}
The core of async programming is the Task and Task objects, which model asynchronous operations. They are supported by the async and await keywords. The model is fairly simple in most cases:
For I/O-bound code, you await an operation which returns a Task or Task inside of an async method.
For CPU-bound code, you await an operation which is started on a background thread with the Task.Run method.
The await keyword is where the magic happens. It yields control to the caller of the method that performed await, and it ultimately allows a UI to be responsive or a service to be elastic.
I/O-Bound Example: Downloading data from a web service
private readonly HttpClient _httpClient = new HttpClient();
downloadButton.Clicked += async (o, e) =>
{
// This line will yield control to the UI as the request
// from the web service is happening.
//
// The UI thread is now free to perform other work.
var stringData = await _httpClient.GetStringAsync(URL);
DoSomethingWithData(stringData);
};
CPU-bound Example: Performing a Calculation for a Game
private DamageResult CalculateDamageDone()
{
// Code omitted:
//
// Does an expensive calculation and returns
// the result of that calculation.
}
calculateButton.Clicked += async (o, e) =>
{
// This line will yield control to the UI while CalculateDamageDone()
// performs its work. The UI thread is free to perform other work.
var damageResult = await Task.Run(() => CalculateDamageDone());
DisplayDamage(damageResult);
};
Examples above showed how you can use async and await for I/O-bound and CPU-bound work. It's key that you can identify when a job you need to do is I/O-bound or CPU-bound, because it can greatly affect the performance of your code and could potentially lead to misusing certain constructs.
Here are two questions you should ask before you write any code:
Will your code be "waiting" for something, such as data from a database?
- If your answer is "yes", then your work is I/O-bound.
Will your code be performing a very expensive computation?
- If you answered "yes", then your work is CPU-bound.
If the work you have is I/O-bound, use async and await without Task.Run. You should not use the Task Parallel Library. The reason for this is outlined in the Async in Depth article.
If the work you have is CPU-bound and you care about responsiveness, use async and await but spawn the work off on another thread with Task.Run. If the work is appropriate for concurrency and parallelism, you should also consider using the Task Parallel Library.
The meaning of invariant is never change
Here the loop invariant means "The change which happen to variable in the loop(increment or decrement) is not changing the loop condition i.e the condition is satisfying " so that the loop invariant concept has came
A parent class should not have knowledge of child classes. You can implement a method calculate()
and override it in every subclass:
class Person {
String name;
void getName(){...}
void calculate();
}
and then
class Student extends Person{
String class;
void getClass(){...}
@Override
void calculate() {
// do something with a Student
}
}
and
class Teacher extends Person{
String experience;
void getExperience(){...}
@Override
void calculate() {
// do something with a Student
}
}
By the way. Your statement about abstract classes is confusing. You can call methods defined in an abstract class, but of course only of instances of subclasses.
In your example you can make Person
abstract and the use getName()
on instanced of Student
and Teacher
.
It's used to set up the contents and state of your class. Whilst it's true you can make the simpler example with the main method you only have 1 main method per app so it does not remain a sensible approach.
Consider the main method to simply start your program and should know no more than how to do that. Also note that main() is static so cannot call functions that require a class instance and the state associated. The main method should call new Program().function() and the Program constructor should not call function() unless it is required for the setup of the class.
public class Country
{
public string Name { get; set; }
public IList<City> Cities { get; set; }
public Country()
{
Cities = new List<City>();
}
}
public class City
{
public string Name { get; set; }
}
List<Country> Countries = new List<Country>
{
new Country
{
Name = "Germany",
Cities =
{
new City {Name = "Berlin"},
new City {Name = "Hamburg"}
}
},
new Country
{
Name = "England",
Cities =
{
new City {Name = "London"},
new City {Name = "Birmingham"}
}
}
};
bindingSource1.DataSource = Countries;
member_CountryComboBox.DataSource = bindingSource1.DataSource;
member_CountryComboBox.DisplayMember = "Name";
member_CountryCombo
Box.ValueMember = "Name";
This is the code I am using now.
Private Sub CommandButton1_Click()
Dim Z As Long
Dim Cellidx As Range
Dim NextRow As Long
Dim Rng As Range
Dim SrcWks As Worksheet
Dim DataWks As Worksheet
Z = 1
Set SrcWks = Worksheets("Sheet1")
Set DataWks = Worksheets("Sheet2")
Set Rng = EntryWks.Range("B6:ad6")
NextRow = DataWks.UsedRange.Rows.Count
NextRow = IIf(NextRow = 1, 1, NextRow + 1)
For Each RA In Rng.Areas
For Each Cellidx In RA
Z = Z + 1
DataWks.Cells(NextRow, Z) = Cellidx
Next Cellidx
Next RA
End Sub
Alternatively
Worksheets("Sheet2").Range("P2").Value = Worksheets("Sheet1").Range("L10")
This is a CopynPaste - Method
Sub CopyDataToPlan()
Dim LDate As String
Dim LColumn As Integer
Dim LFound As Boolean
On Error GoTo Err_Execute
'Retrieve date value to search for
LDate = Sheets("Rolling Plan").Range("B4").Value
Sheets("Plan").Select
'Start at column B
LColumn = 2
LFound = False
While LFound = False
'Encountered blank cell in row 2, terminate search
If Len(Cells(2, LColumn)) = 0 Then
MsgBox "No matching date was found."
Exit Sub
'Found match in row 2
ElseIf Cells(2, LColumn) = LDate Then
'Select values to copy from "Rolling Plan" sheet
Sheets("Rolling Plan").Select
Range("B5:H6").Select
Selection.Copy
'Paste onto "Plan" sheet
Sheets("Plan").Select
Cells(3, LColumn).Select
Selection.PasteSpecial Paste:=xlValues, Operation:=xlNone, SkipBlanks:= _
False, Transpose:=False
LFound = True
MsgBox "The data has been successfully copied."
'Continue searching
Else
LColumn = LColumn + 1
End If
Wend
Exit Sub
Err_Execute:
MsgBox "An error occurred."
End Sub
And there might be some methods doing that in Excel.
Here, the paragraph is printed only 'isValid' is true / it contains any value
<p *ngIf="isValid ? true : false">Paragraph</p>
Too many flavours but none an iterative elaborated one. Combined from the previous ones:
func topMostController() -> UIViewController? {
var from = UIApplication.shared.keyWindow?.rootViewController
while (from != nil) {
if let to = (from as? UITabBarController)?.selectedViewController {
from = to
} else if let to = (from as? UINavigationController)?.visibleViewController {
from = to
} else if let to = from?.presentedViewController {
from = to
} else {
break
}
}
return from
}
According to Amazon:
Write, read, and delete objects containing from 0 bytes to 5 terabytes of data each. The number of objects you can store is unlimited.
Source: http://aws.amazon.com/s3/details/ as of Sep 3, 2015.
Take a look at the PDOStatement.fetchAll
method. You could also use fetch
in an iterator pattern.
Code sample for fetchAll
, from the PHP documentation:
<?php
$sth = $dbh->prepare("SELECT name, colour FROM fruit");
$sth->execute();
/* Fetch all of the remaining rows in the result set */
print("Fetch all of the remaining rows in the result set:\n");
$result = $sth->fetchAll(\PDO::FETCH_ASSOC);
print_r($result);
Results:
Array
(
[0] => Array
(
[NAME] => pear
[COLOUR] => green
)
[1] => Array
(
[NAME] => watermelon
[COLOUR] => pink
)
)
The application name come from getContextPath
.
I find this graphic from Agile Software Craftsmanship HttpServletRequest Path Decoding sorts out all the different methods that are available:
If you are using the Git Bash shell, you can use the following trick:
> webpage.html
This is actually the same as:
echo "" > webpage.html
Then, you can use git add webpage.html
to stage the file.
The 'u' in front of the string values means the string is a Unicode string. Unicode is a way to represent more characters than normal ASCII can manage. The fact that you're seeing the u
means you're on Python 2 - strings are Unicode by default on Python 3, but on Python 2, the u
in front distinguishes Unicode strings. The rest of this answer will focus on Python 2.
You can create a Unicode string multiple ways:
>>> u'foo'
u'foo'
>>> unicode('foo') # Python 2 only
u'foo'
But the real reason is to represent something like this (translation here):
>>> val = u'???????????? ? ?????????????'
>>> val
u'\u041e\u0437\u043d\u0430\u043a\u043e\u043c\u044c\u0442\u0435\u0441\u044c \u0441 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u0435\u0439'
>>> print val
???????????? ? ?????????????
For the most part, Unicode and non-Unicode strings are interoperable on Python 2.
There are other symbols you will see, such as the "raw" symbol r
for telling a string not to interpret backslashes. This is extremely useful for writing regular expressions.
>>> 'foo\"'
'foo"'
>>> r'foo\"'
'foo\\"'
Unicode and non-Unicode strings can be equal on Python 2:
>>> bird1 = unicode('unladen swallow')
>>> bird2 = 'unladen swallow'
>>> bird1 == bird2
True
but not on Python 3:
>>> x = u'asdf' # Python 3
>>> y = b'asdf' # b indicates bytestring
>>> x == y
False
What Tgr said. Background:
http://www.example.com/düsseldorf?neighbourhood=Lörick
That's not a URI. But it is an IRI.
You can't include an IRI in an HTML4 document; the type of attributes like href
is defined as URI and not IRI. Some browsers will handle an IRI here anyway, but it's not really a good idea.
To encode an IRI into a URI, take the path and query parts, UTF-8-encode them then percent-encode the non-ASCII bytes:
http://www.example.com/d%C3%BCsseldorf?neighbourhood=L%C3%B6rick
If there are non-ASCII characters in the hostname part of the IRI, eg. http://??.???/
, they have be encoded using Punycode instead.
Now you have a URI. It's an ugly URI. But most browsers will hide that for you: copy and paste it into the address bar or follow it in a link and you'll see it displayed with the original Unicode characters. Wikipedia have been using this for years, eg.:
http://en.wikipedia.org/wiki/?
The one browser whose behaviour is unpredictable and doesn't always display the pretty IRI version is...
...well, you know.
I just had a memory leak in a windows service, that I fixed.
First, I tried MemProfiler. I found it really hard to use and not at all user friendly.
Then, I used JustTrace which is easier to use and gives you more details about the objects that are not disposed correctly.
It allowed me to solve the memory leak really easily.
connect your server from mysqlworkbench and run this command-> ALTER USER 'root'@'localhost' IDENTIFIED BY 'yourpassword';
Maybe you want to try this: https://bootstrap-datepicker.readthedocs.org/en/latest/index.html
It's a flexible datepicker widget in the Bootstrap style.
start it with hover of body than It will start when the mouse first moves on the screen, which is mostly within a second after arrival, the problem here is that it will reverse when out of the screen.
html:hover #animateelementid, body:hover #animateelementid {rotate ....}
thats the best thing I can think of: http://jsfiddle.net/faVLX/
fullscreen: http://jsfiddle.net/faVLX/embedded/result/
Edit see comments below:
This will not work on any touchscreen device because there is no hover, so the user won't see the content unless they tap it. – Rich Bradshaw
you can use following two Generic functions
private static List<T> ConvertDataTable<T>(DataTable dt)
{
List<T> data = new List<T>();
foreach (DataRow row in dt.Rows)
{
T item = GetItem<T>(row);
data.Add(item);
}
return data;
}
private static T GetItem<T>(DataRow dr)
{
Type temp = typeof(T);
T obj = Activator.CreateInstance<T>();
foreach (DataColumn column in dr.Table.Columns)
{
foreach (PropertyInfo pro in temp.GetProperties())
{
if (pro.Name == column.ColumnName)
pro.SetValue(obj, dr[column.ColumnName].ToString(), null);
else
continue;
}
}
return obj;
}
and use it as following
List<StudentScanExamsDTO> studentDetails = ConvertDataTable<StudentScanExamsDTO>(dt);
Looking at the web I find some simple way to style scrollbars.
This is THE guy! http://almaer.com/blog/creating-custom-scrollbars-with-css-how-css-isnt-great-for-every-task
And here my implementation! https://dl.dropbox.com/u/1471066/cloudBI/cssScrollbars.png
/* Turn on a 13x13 scrollbar */
::-webkit-scrollbar {
width: 10px;
height: 13px;
}
::-webkit-scrollbar-button:vertical {
background-color: silver;
border: 1px solid gray;
}
/* Turn on single button up on top, and down on bottom */
::-webkit-scrollbar-button:start:decrement,
::-webkit-scrollbar-button:end:increment {
display: block;
}
/* Turn off the down area up on top, and up area on bottom */
::-webkit-scrollbar-button:vertical:start:increment,
::-webkit-scrollbar-button:vertical:end:decrement {
display: none;
}
/* Place The scroll down button at the bottom */
::-webkit-scrollbar-button:vertical:increment {
display: none;
}
/* Place The scroll up button at the up */
::-webkit-scrollbar-button:vertical:decrement {
display: none;
}
/* Place The scroll down button at the bottom */
::-webkit-scrollbar-button:horizontal:increment {
display: none;
}
/* Place The scroll up button at the up */
::-webkit-scrollbar-button:horizontal:decrement {
display: none;
}
::-webkit-scrollbar-track:vertical {
background-color: blue;
border: 1px dashed pink;
}
/* Top area above thumb and below up button */
::-webkit-scrollbar-track-piece:vertical:start {
border: 0px;
}
/* Bottom area below thumb and down button */
::-webkit-scrollbar-track-piece:vertical:end {
border: 0px;
}
/* Track below and above */
::-webkit-scrollbar-track-piece {
background-color: silver;
}
/* The thumb itself */
::-webkit-scrollbar-thumb:vertical {
height: 50px;
background-color: gray;
}
/* The thumb itself */
::-webkit-scrollbar-thumb:horizontal {
height: 50px;
background-color: gray;
}
/* Corner */
::-webkit-scrollbar-corner:vertical {
background-color: black;
}
/* Resizer */
::-webkit-scrollbar-resizer:vertical {
background-color: gray;
}
I added file called .prettierrc
in my project folder.
File content:
{
"singleQuote": true,
"vetur.format.defaultFormatterOptions": {
"prettier": {
"singleQuote": true
}
}
}
is.element()
makes for more readable code, and is identical to %in%
v <- c('a','b','c','e')
is.element('b', v)
'b' %in% v
## both return TRUE
is.element('f', v)
'f' %in% v
## both return FALSE
subv <- c('a', 'f')
subv %in% v
## returns a vector TRUE FALSE
is.element(subv, v)
## returns a vector TRUE FALSE
Due to the popularity of MySQL, there's no wonder Lock wait timeout exceeded; try restarting transaction exception gets so much attention on SO.
The more contention you have, the greater the chance of deadlocks, which a DB engine will resolve by time-outing one of the deadlocked transactions.
Also, long-running transactions that have modified (e.g. UPDATE
or DELETE
) a large number of entries are more likely to generate conflicts with other transactions.
Although InnoDB MVCC, you can still request explicit locks using the FOR UPDATE
clause. However, unlike other popular DBs (Oracle, MSSQL, PostgreSQL, DB2), MySQL uses REPEATABLE_READ
as the default isolation level.
Now, the locks that you acquired (either by modifying rows or using explicit locking), are held for the duration of the currently running transaction. If you want a good explanation of the difference between REPEATABLE_READ
and READ COMMITTED
in regards to locking, please read this Percona article.
In REPEATABLE READ every lock acquired during a transaction is held for the duration of the transaction.
In READ COMMITTED the locks that did not match the scan are released after the STATEMENT completes.
...
This means that in READ COMMITTED other transactions are free to update rows that they would not have been able to update (in REPEATABLE READ) once the UPDATE statement completes.
Therefore: The more restrictive the isolation level (REPEATABLE_READ
, SERIALIZABLE
) the greater the chance of deadlock. This is not an issue "per se", it's a trade-off.
You can get very good results with READ_COMMITED
, as you need application-level lost update prevention when using logical transactions that span over multiple HTTP requests. The optimistic locking approach targets lost updates that might happen even if you use the SERIALIZABLE
isolation level while reducing the lock contention by allowing you to use READ_COMMITED
.
For your first code, you can use a short alteration of the answer given by
@ShankarDamodaran using in_array()
:
if ( !in_array($some_variable, array('uk','in'), true ) ) {
or even shorter with []
notation available since php 5.4 as pointed out by @Forty in the comments
if ( !in_array($some_variable, ['uk','in'], true ) ) {
is the same as:
if ( $some_variable !== 'uk' && $some_variable !== 'in' ) {
... but shorter. Especially if you compare more than just 'uk' and 'in'. I do not use an additional variable (Shankar used $os) but instead define the array in the if statement. Some might find that dirty, i find it quick and neat :D
The problem with your second code is that it can easily be exchanged with just TRUE since:
if (true) {
equals
if ( $some_variable !== 'uk' || $some_variable !== 'in' ) {
You are asking if the value of a string is not A or Not B. If it is A, it is definitely not also B and if it is B it is definitely not A. And if it is C or literally anything else, it is also not A and not B. So that statement always (not taking into account schrödingers law here) returns true.
json.dumps()
returns the JSON string representation of the python dict. See the docs
You can't do r['rating']
because r is a string, not a dict anymore
Perhaps you meant something like
r = {'is_claimed': 'True', 'rating': 3.5}
json = json.dumps(r) # note i gave it a different name
file.write(str(r['rating']))
Yes, if bar is not None
is more explicit, and thus better, assuming it is indeed what you want. That's not always the case, there are subtle differences: if not bar:
will execute if bar
is any kind of zero or empty container, or False
.
Many people do use not bar
where they really do mean bar is not None
.
Since the static method 'GetAccessControl' seems to be missing from the present version of .Net core/Standard I had to modify @Bryce Wagner's answer (I went ahead and used more modern syntax):
public static class PermissionHelper
{
public static bool? CurrentUserHasWritePermission(string filePath)
=> new WindowsPrincipal(WindowsIdentity.GetCurrent())
.SelectWritePermissions(filePath)
.FirstOrDefault();
private static IEnumerable<bool?> SelectWritePermissions(this WindowsPrincipal user, string filePath)
=> from rule in filePath
.GetFileSystemSecurity()
.GetAccessRules(true, true, typeof(NTAccount))
.Cast<FileSystemAccessRule>()
let right = user.HasRightSafe(rule)
where right.HasValue
// Deny takes precedence over allow
orderby right.Value == false descending
select right;
private static bool? HasRightSafe(this WindowsPrincipal user, FileSystemAccessRule rule)
{
try
{
return user.HasRight(rule);
}
catch
{
return null;
}
}
private static bool? HasRight(this WindowsPrincipal user,FileSystemAccessRule rule )
=> rule switch
{
{ FileSystemRights: FileSystemRights fileSystemRights } when (fileSystemRights &
(FileSystemRights.WriteData | FileSystemRights.Write)) == 0 => null,
{ IdentityReference: { Value: string value } } when value.StartsWith("S-1-") &&
!user.IsInRole(new SecurityIdentifier(rule.IdentityReference.Value)) => null,
{ IdentityReference: { Value: string value } } when value.StartsWith("S-1-") == false &&
!user.IsInRole(rule.IdentityReference.Value) => null,
{ AccessControlType: AccessControlType.Deny } => false,
{ AccessControlType: AccessControlType.Allow } => true,
_ => null
};
private static FileSystemSecurity GetFileSystemSecurity(this string filePath)
=> new FileInfo(filePath) switch
{
{ Exists: true } fileInfo => fileInfo.GetAccessControl(),
{ Exists: false } fileInfo => (FileSystemSecurity)fileInfo.Directory.GetAccessControl(),
_ => throw new Exception($"Check the file path, {filePath}: something's wrong with it.")
};
}
There are several problems here:
The newdata
argument of predict()
needs a predictor variable. You should thus pass it values for Coupon
, instead of Total
, which is the response variable in your model.
The predictor variable needs to be passed in as a named column in a data frame, so that
predict()
knows what the numbers its been handed represent. (The need for this becomes clear when you consider more complicated models, having more than one predictor variable).
For this to work, your original call should pass df
in through the data
argument, rather than using it directly in your formula. (This way, the name of the column in newdata
will be able to match the name on the RHS of the formula).
With those changes incorporated, this will work:
model <- lm(Total ~ Coupon, data=df)
new <- data.frame(Coupon = df$Coupon)
predict(model, newdata = new, interval="confidence")
Converting LocalDateTime to java.util.Date
LocalDateTime localDateTime = LocalDateTime.now();
ZonedDateTime zonedDateTime = localDateTime.atZone(ZoneOffset.systemDefault());
Instant instant = zonedDateTime.toInstant();
Date date = Date.from(instant);
System.out.println("Result Date is : "+date);
'compile files...' used to work for me, but not any more. after much pain, I found that using this instead works:
compile fileTree(dir: 'libs', include: '*.jar')
I have no idea why that made a difference, but, at least the damn thing is working now.
I tried "ManiIOT"'s solution and it worked surprisingly. I've added another role (Compute Admin Role) for my google user account from IAM admin. Then stopped and restarted the VM. Afterwards 'sudo passwd' let me to generate a new password for the user.
So here are steps.
You can use any Object as an item. In that object you can have several fields you need. In your case the value field. You have to override the toString() method to represent the text. In your case "item text". See the example:
public class AnyObject {
private String value;
private String text;
public AnyObject(String value, String text) {
this.value = value;
this.text = text;
}
...
@Override
public String toString() {
return text;
}
}
comboBox.addItem(new AnyObject("item_value", "item text"));
Here is how I scale <img> tags. If you want to make it a background image you can set it's position to absolute, place the image where you want (using the: top, bottom, left, right declarations), and set it's z-index below the rest of your page.
//simple example .your_class_name { width: 100%; height:auto; }
//background image example .your_background_class_name { width: 100%; height:auto; top: 0px; left: 0px; z-index: -1; position: absolute; }
To implement this you would simply place an image tag inside the data-role="page" element of your page(s) that has the ".your_background_class_name" class and the src attribute set to the image you want to have as your background.
I hope this helps.
Using calendar module:
Number-to-Abbr
calendar.month_abbr[month_number]
Abbr-to-Number
list(calendar.month_abbr).index(month_abbr)
Probably late but here is a plugin that can do the job : http://multi-level-push-menu.make.rs/
Also v2 can use mobile gesture such as swipe ;)
Since the permission policy on my device is a bit paranoid (cannot adb pull
application data), I wrote a script to copy files recursively.
Note: this recursive file/folder copy script is intended for Android!
copy-r:
#! /system/bin/sh
src="$1"
dst="$2"
dir0=`pwd`
myfind() {
local fpath=$1
if [ -e "$fpath" ]
then
echo $fpath
if [ -d "$fpath" ]
then
for fn in $fpath/*
do
myfind $fn
done
fi
else
: echo "$fpath not found"
fi
}
if [ ! -z "$dst" ]
then
if [ -d "$src" ]
then
echo 'the source is a directory'
mkdir -p $dst
if [[ "$dst" = /* ]]
then
: # Absolute path
else
# Relative path
dst=`pwd`/$dst
fi
cd $src
echo "COPYING files and directories from `pwd`"
for fn in $(myfind .)
do
if [ -d $fn ]
then
echo "DIR $dst/$fn"
mkdir -p $dst/$fn
else
echo "FILE $dst/$fn"
cat $fn >$dst/$fn
fi
done
echo "DONE"
cd $dir0
elif [ -f "$src" ]
then
echo 'the source is a file'
srcn="${src##*/}"
if [ -z "$srcn" ]
then
srcn="$src"
fi
if [[ "$dst" = */ ]]
then
mkdir -p $dst
echo "copying $src" '->' "$dst/$srcn"
cat $src >$dst/$srcn
elif [ -d "$dst" ]
then
echo "copying $src" '->' "$dst/$srcn"
cat $src >$dst/$srcn
else
dstdir=${dst%/*}
if [ ! -z "$dstdir" ]
then
mkdir -p $dstdir
fi
echo "copying $src" '->' "$dst"
cat $src >$dst
fi
else
echo "$src is neither a file nor a directory"
fi
else
echo "Use: copy-r src-dir dst-dir"
echo "Use: copy-r src-file existing-dst-dir"
echo "Use: copy-r src-file dst-dir/"
echo "Use: copy-r src-file dst-file"
fi
Here I provide the source of a lightweight find
for Android because on some devices this utility is missing. Instead of myfind
one can use find
, if it is defined on the device.
Installation:
$ adb push copy-r /sdcard/
Running within adb shell
(rooted):
# . /sdcard/copy-r files/ /sdcard/files3
or
# source /sdcard/copy-r files/ /sdcard/files3
(The hash #
above is the su
prompt, while .
is the command that causes the shell to run the specified file, almost the same as source
).
After copying, I can adb pull
the files from the sd-card.
Writing files to the app directory was trickier, I tried to set r/w permissions on files
and its subdirectories, it did not work (well, it allowed me to read, but not write, which is strange), so I had to do:
String[] cmdline = { "sh", "-c", "source /sdcard/copy-r /sdcard/files4 /data/data/com.example.myapp/files" };
try {
Runtime.getRuntime().exec(cmdline);
} catch (IOException e) {
e.printStackTrace();
}
in the application's onCreate().
PS just in case someone needs the code to unprotect application's directories to enable adb shell
access on a non-rooted phone,
setRW(appContext.getFilesDir().getParentFile());
public static void setRW(File... files) {
for (File file : files) {
if (file.isDirectory()) {
setRW(file.listFiles()); // Calls same method again.
} else {
}
file.setReadable(true, false);
file.setWritable(true, false);
}
}
although for some unknown reason I could read but not write.
I used ng-click
directive to call a function, while requesting route templateUrl, to decide which <div>
has to be show
or hide
inside route templateUrl page or for different scenarios.
AngularJS 1.6.9
Lets see an example, when in routing page, I need either the add <div>
or the edit <div>
, which I control using the parent controller models $scope.addProduct
and $scope.editProduct
boolean.
RoutingTesting.html
<!DOCTYPE html>_x000D_
<html lang="en">_x000D_
<head>_x000D_
<meta charset="UTF-8">_x000D_
<title>Testing</title>_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular-route.min.js"></script>_x000D_
<script>_x000D_
var app = angular.module("MyApp", ["ngRoute"]);_x000D_
_x000D_
app.config(function($routeProvider){_x000D_
$routeProvider_x000D_
.when("/TestingPage", {_x000D_
templateUrl: "TestingPage.html"_x000D_
});_x000D_
});_x000D_
_x000D_
app.controller("HomeController", function($scope, $location){_x000D_
_x000D_
$scope.init = function(){_x000D_
$scope.addProduct = false;_x000D_
$scope.editProduct = false;_x000D_
}_x000D_
_x000D_
$scope.productOperation = function(operationType, productId){_x000D_
$scope.addProduct = false;_x000D_
$scope.editProduct = false;_x000D_
_x000D_
if(operationType === "add"){_x000D_
$scope.addProduct = true;_x000D_
console.log("Add productOperation requested...");_x000D_
}else if(operationType === "edit"){_x000D_
$scope.editProduct = true;_x000D_
console.log("Edit productOperation requested : " + productId);_x000D_
}_x000D_
_x000D_
//*************** VERY IMPORTANT NOTE ***************_x000D_
//comment this $location.path("..."); line, when using <a> anchor tags,_x000D_
//only useful when <a> below given are commented, and using <input> controls_x000D_
$location.path("TestingPage");_x000D_
};_x000D_
_x000D_
});_x000D_
</script>_x000D_
</head>_x000D_
<body ng-app="MyApp" ng-controller="HomeController">_x000D_
_x000D_
<div ng-init="init()">_x000D_
_x000D_
<!-- Either use <a>anchor tag or input type=button -->_x000D_
_x000D_
<!--<a href="#!TestingPage" ng-click="productOperation('add', -1)">Add Product</a>-->_x000D_
<!--<br><br>-->_x000D_
<!--<a href="#!TestingPage" ng-click="productOperation('edit', 10)">Edit Product</a>-->_x000D_
_x000D_
<input type="button" ng-click="productOperation('add', -1)" value="Add Product"/>_x000D_
<br><br>_x000D_
<input type="button" ng-click="productOperation('edit', 10)" value="Edit Product"/>_x000D_
<pre>addProduct : {{addProduct}}</pre>_x000D_
<pre>editProduct : {{editProduct}}</pre>_x000D_
<ng-view></ng-view>_x000D_
_x000D_
</div>_x000D_
_x000D_
</body>_x000D_
</html>
_x000D_
TestingPage.html
<!DOCTYPE html>_x000D_
<html lang="en">_x000D_
<head>_x000D_
<meta charset="UTF-8">_x000D_
<title>Title</title>_x000D_
<style>_x000D_
.productOperation{_x000D_
position:fixed;_x000D_
top: 50%;_x000D_
left: 50%;_x000D_
width:30em;_x000D_
height:18em;_x000D_
margin-left: -15em; /*set to a negative number 1/2 of your width*/_x000D_
margin-top: -9em; /*set to a negative number 1/2 of your height*/_x000D_
border: 1px solid #ccc;_x000D_
background: yellow;_x000D_
}_x000D_
</style>_x000D_
</head>_x000D_
<body>_x000D_
_x000D_
<div class="productOperation" >_x000D_
_x000D_
<div ng-show="addProduct">_x000D_
<h2 >Add Product enabled</h2>_x000D_
</div>_x000D_
_x000D_
<div ng-show="editProduct">_x000D_
<h2>Edit Product enabled</h2>_x000D_
</div>_x000D_
_x000D_
</div>_x000D_
_x000D_
</body>_x000D_
</html>
_x000D_
both pages -
RoutingTesting.html
(parent), TestingPage.html
(routing page) are in the same directory,
Hope this will help someone.
If you want to spot what character caused this just assign the problematic variable to a string and print it in a iPython console.
In my case
In [1]: array = [[24.9, 50.5]?, [11.2, 51.0]] # Raises an error
In [2]: string = "[[24.9, 50.5]?, [11.2, 51.0]]" # Manually paste the above array here
In [3]: string
Out [3]: '[[24.9, 50.5]\xe2\x80\x8b, [11.2, 51.0]]' # Here they are!
Instead of using sed
to filter out the certificate, you can also pipe the openssl s_client
output through openssl x509 -out certfile.txt
, for example:
echo "" | openssl s_client -connect my.server.com:443 -showcerts 2>/dev/null | openssl x509 -out certfile.txt
This doesn't work because NaN
isn't equal to anything, including NaN
. Use pd.isnull(df.var2)
instead.
ADM was deprecated in 3.1 version of android studio and removed from Android Studio 3.2. Android Device Monitor have been replaced by new features and to start Android Device Monitor application in android studio 3.1 and lower, following the commend line android-sdk/tools/
directory:
monitor
I've done something like before using the JavaScript serialization class:
using System.Web.Script.Serialization;
And:
JavaScriptSerializer jss = new JavaScriptSerializer();
string output = jss.Serialize(ListOfMyObject);
Response.Write(output);
Response.Flush();
Response.End();
For Bootstrap 4 you may have to use .modal-backdrop.show
and play around with !important
flag on both background-color
and opacity
.
E.g.
.modal-backdrop.show {
background-color: #f00;
opacity: 0.75;
}
FIRST, if you want to be able to access man1.py from man1test.py AND manModules.py from man1.py, you need to properly setup your files as packages and modules.
Packages are a way of structuring Python’s module namespace by using “dotted module names”. For example, the module name
A.B
designates a submodule namedB
in a package namedA
....
When importing the package, Python searches through the directories on
sys.path
looking for the package subdirectory.The
__init__.py
files are required to make Python treat the directories as containing packages; this is done to prevent directories with a common name, such asstring
, from unintentionally hiding valid modules that occur later on the module search path.
You need to set it up to something like this:
man
|- __init__.py
|- Mans
|- __init__.py
|- man1.py
|- MansTest
|- __init.__.py
|- SoftLib
|- Soft
|- __init__.py
|- SoftWork
|- __init__.py
|- manModules.py
|- Unittests
|- __init__.py
|- man1test.py
SECOND, for the "ModuleNotFoundError: No module named 'Soft'
" error caused by from ...Mans import man1
in man1test.py, the documented solution to that is to add man1.py to sys.path
since Mans is outside the MansTest package. See The Module Search Path from the Python documentation. But if you don't want to modify sys.path
directly, you can also modify PYTHONPATH
:
sys.path
is initialized from these locations:
- The directory containing the input script (or the current directory when no file is specified).
PYTHONPATH
(a list of directory names, with the same syntax as the shell variablePATH
).- The installation-dependent default.
THIRD, for from ...MansTest.SoftLib import Soft
which you said "was to facilitate the aforementioned import statement in man1.py", that's now how imports work. If you want to import Soft.SoftLib in man1.py, you have to setup man1.py to find Soft.SoftLib and import it there directly.
With that said, here's how I got it to work.
man1.py:
from Soft.SoftWork.manModules import *
# no change to import statement but need to add Soft to PYTHONPATH
def foo():
print("called foo in man1.py")
print("foo call module1 from manModules: " + module1())
man1test.py
# no need for "from ...MansTest.SoftLib import Soft" to facilitate importing..
from ...Mans import man1
man1.foo()
manModules.py
def module1():
return "module1 in manModules"
Terminal output:
$ python3 -m man.MansTest.Unittests.man1test
Traceback (most recent call last):
...
from ...Mans import man1
File "/temp/man/Mans/man1.py", line 2, in <module>
from Soft.SoftWork.manModules import *
ModuleNotFoundError: No module named 'Soft'
$ PYTHONPATH=$PYTHONPATH:/temp/man/MansTest/SoftLib
$ export PYTHONPATH
$ echo $PYTHONPATH
:/temp/man/MansTest/SoftLib
$ python3 -m man.MansTest.Unittests.man1test
called foo in man1.py
foo called module1 from manModules: module1 in manModules
As a suggestion, maybe re-think the purpose of those SoftLib files. Is it some sort of "bridge" between man1.py and man1test.py? The way your files are setup right now, I don't think it's going to work as you expect it to be. Also, it's a bit confusing for the code-under-test (man1.py) to be importing stuff from under the test folder (MansTest).
Check the version of your Compiler.
n= raw_input("Enter your Input: ")
n= input("Enter your Input: ")
How about this?
>>> s = '23.45678'
>>> int(float(s))
23
Or...
>>> int(Decimal(s))
23
Or...
>>> int(s.split('.')[0])
23
I doubt it's going to get much simpler than that, I'm afraid. Just accept it and move on.
For static resources right caching would be to use query parameters with value of each deployment or file version. This will have effect of clearing cache after each deployment.
/Content/css/Site.css?version={FileVersionNumber}
Here is ASP.NET MVC example.
<link href="@Url.Content("~/Content/Css/Reset.css")[email protected]().Assembly.GetName().Version" rel="stylesheet" type="text/css" />
Don't forget to update assembly version.
You can also use this:
<fieldset>
<input type="radio" name="myoptions[]" value="blue"> Blue<br />
<input type="radio" name="myoptions[]" value="red"> Red<br />
<input type="radio" name="myoptions[]" value="green"> Green<br />
<label for="myoptions[]" class="error" style="display:none;">Please choose one.</label>
</fieldset>
and simply add this rule
rules: {
'myoptions[]':{ required:true }
}
Mention how to add rules.
Here's my code:
public static class ShortcutHelper
{
#region Constants
/// <summary>
/// Default shortcut extension
/// </summary>
public const string DEFAULT_SHORTCUT_EXTENSION = ".lnk";
private const string WSCRIPT_SHELL_NAME = "WScript.Shell";
#endregion
/// <summary>
/// Create shortcut in current path.
/// </summary>
/// <param name="linkFileName">shortcut name(include .lnk extension.)</param>
/// <param name="targetPath">target path</param>
/// <param name="workingDirectory">working path</param>
/// <param name="arguments">arguments</param>
/// <param name="hotkey">hot key(ex: Ctrl+Shift+Alt+A)</param>
/// <param name="shortcutWindowStyle">window style</param>
/// <param name="description">shortcut description</param>
/// <param name="iconNumber">icon index(start of 0)</param>
/// <returns>shortcut file path.</returns>
/// <exception cref="System.IO.FileNotFoundException"></exception>
public static string CreateShortcut(
string linkFileName,
string targetPath,
string workingDirectory = "",
string arguments = "",
string hotkey = "",
ShortcutWindowStyles shortcutWindowStyle = ShortcutWindowStyles.WshNormalFocus,
string description = "",
int iconNumber = 0)
{
if (linkFileName.Contains(DEFAULT_SHORTCUT_EXTENSION) == false)
{
linkFileName = string.Format("{0}{1}", linkFileName, DEFAULT_SHORTCUT_EXTENSION);
}
if (File.Exists(targetPath) == false)
{
throw new FileNotFoundException(targetPath);
}
if (workingDirectory == string.Empty)
{
workingDirectory = Path.GetDirectoryName(targetPath);
}
string iconLocation = string.Format("{0},{1}", targetPath, iconNumber);
if (Environment.Version.Major >= 4)
{
Type shellType = Type.GetTypeFromProgID(WSCRIPT_SHELL_NAME);
dynamic shell = Activator.CreateInstance(shellType);
dynamic shortcut = shell.CreateShortcut(linkFileName);
shortcut.TargetPath = targetPath;
shortcut.WorkingDirectory = workingDirectory;
shortcut.Arguments = arguments;
shortcut.Hotkey = hotkey;
shortcut.WindowStyle = shortcutWindowStyle;
shortcut.Description = description;
shortcut.IconLocation = iconLocation;
shortcut.Save();
}
else
{
Type shellType = Type.GetTypeFromProgID(WSCRIPT_SHELL_NAME);
object shell = Activator.CreateInstance(shellType);
object shortcut = shellType.InvokeMethod("CreateShortcut", shell, linkFileName);
Type shortcutType = shortcut.GetType();
shortcutType.InvokeSetMember("TargetPath", shortcut, targetPath);
shortcutType.InvokeSetMember("WorkingDirectory", shortcut, workingDirectory);
shortcutType.InvokeSetMember("Arguments", shortcut, arguments);
shortcutType.InvokeSetMember("Hotkey", shortcut, hotkey);
shortcutType.InvokeSetMember("WindowStyle", shortcut, shortcutWindowStyle);
shortcutType.InvokeSetMember("Description", shortcut, description);
shortcutType.InvokeSetMember("IconLocation", shortcut, iconLocation);
shortcutType.InvokeMethod("Save", shortcut);
}
return Path.Combine(System.Windows.Forms.Application.StartupPath, linkFileName);
}
private static object InvokeSetMember(this Type type, string methodName, object targetInstance, params object[] arguments)
{
return type.InvokeMember(
methodName,
BindingFlags.Public | BindingFlags.Instance | BindingFlags.SetProperty,
null,
targetInstance,
arguments);
}
private static object InvokeMethod(this Type type, string methodName, object targetInstance, params object[] arguments)
{
return type.InvokeMember(
methodName,
BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod,
null,
targetInstance,
arguments);
}
/// <summary>
/// windows styles
/// </summary>
public enum ShortcutWindowStyles
{
/// <summary>
/// Hide
/// </summary>
WshHide = 0,
/// <summary>
/// NormalFocus
/// </summary>
WshNormalFocus = 1,
/// <summary>
/// MinimizedFocus
/// </summary>
WshMinimizedFocus = 2,
/// <summary>
/// MaximizedFocus
/// </summary>
WshMaximizedFocus = 3,
/// <summary>
/// NormalNoFocus
/// </summary>
WshNormalNoFocus = 4,
/// <summary>
/// MinimizedNoFocus
/// </summary>
WshMinimizedNoFocus = 6,
}
}
The given answers stress the fact that emptyList()
returns an immutable List
but do not give alternatives. The Constructor ArrayList(int initialCapacity)
special cases 0
so returning new ArrayList<>(0)
instead of new ArrayList<>()
might also be a viable solution:
/**
* Shared empty array instance used for empty instances.
*/
private static final Object[] EMPTY_ELEMENTDATA = {};
[...]
/**
* Constructs an empty list with the specified initial capacity.
*
* @param initialCapacity the initial capacity of the list
* @throws IllegalArgumentException if the specified initial capacity
* is negative
*/
public ArrayList(int initialCapacity) {
if (initialCapacity > 0) {
this.elementData = new Object[initialCapacity];
} else if (initialCapacity == 0) {
this.elementData = EMPTY_ELEMENTDATA;
} else {
throw new IllegalArgumentException("Illegal Capacity: "+
initialCapacity);
}
}
(sources from Java 1.8.0_72)
// produce the filter set by streaming the items from list 2
// assume list2 has elements of type MyClass where getStr gets the
// string that might appear in list1
Set<String> unavailableItems = list2.stream()
.map(MyClass::getStr)
.collect(Collectors.toSet());
// stream the list and use the set to filter it
List<String> unavailable = list1.stream()
.filter(e -> unavailableItems.contains(e))
.collect(Collectors.toList());
Use Control.ControlCollection.Find.
TextBox tbx = this.Controls.Find("textBox1", true).FirstOrDefault() as TextBox;
tbx.Text = "found!";
EDIT for asker:
Control[] tbxs = this.Controls.Find(txtbox_and_message[0,0], true);
if (tbxs != null && tbxs.Length > 0)
{
tbxs[0].Text = "Found!";
}
After install everything and start the service, try close your terminal and open it again, then try pull your image
I also had this issue again, if the solution above won't worked, try this solution that is the command bellow
sudo mv /var/lib/docker/network/files/ /tmp/dn-bak
If command above works you probably are with network docker problems, anyway this resolves it, to confirm that, see the log with the command bellow
tail -5f /var/log/upstart/docker.log
If the output have something like that
FATA[0000] Error starting daemon: Error initializing network controller: could not delete the default bridge network: network bridge has active endpoints
/var/run/docker.sock is up
You really are with network problems, however I do not know yet if the next time you restart(update, 2 months no issue again) your OS will get this problem again and if it is a bug or installation problem
My docker version
Client:
Version: 1.9.1
API version: 1.21
Go version: go1.4.2
Git commit: a34a1d5
Built: Fri Nov 20 13:12:04 UTC 2015
OS/Arch: linux/amd64
Server:
Version: 1.9.1
API version: 1.21
Go version: go1.4.2
Git commit: a34a1d5
Built: Fri Nov 20 13:12:04 UTC 2015
OS/Arch: linux/amd64
I also had an issue with multiline strings in this scenario. @Iman's backtick(`) solution worked great in the modern browsers but caused an invalid character error in Internet Explorer. I had to use the following:
'@item.MultiLineString.Replace(Environment.NewLine, "<br />")'
Then I had to put the carriage returns back again in the js function. Had to use RegEx to handle multiple carriage returns.
// This will work for the following:
// "hello\nworld"
// "hello<br>world"
// "hello<br />world"
$("#MyTextArea").val(multiLineString.replace(/\n|<br\s*\/?>/gi, "\r"));
You can dectect all Internet Explorer (Last Version Tested 12).
<script>
var $userAgent = '';
if(/MSIE/i['test'](navigator['userAgent'])==true||/rv/i['test'](navigator['userAgent'])==true||/Edge/i['test'](navigator['userAgent'])==true){
$userAgent='ie';
} else {
$userAgent='other';
}
alert($userAgent);
</script>
See here https://jsfiddle.net/v7npeLwe/
There is no need to write lots of code. Even it can be done just by one line of code. See here
Below is the one line code that returns the filename only and removes extension name:
<?php
echo pathinfo('logo.png')['filename'];
?>
It will print
logo
Some of the solutions described here did not work for me. Others did, however they produced warnings on runtime and javadoc was still not linked. After some experimenting, I managed to solve this. The steps are:
Install the Google Play Services as recommended on Android Developers.
Set up your project as recommended on Android Developers.
If you followed 1. and 2., you should see two projects in your workspace: your project and google-play-services_lib project. Copy the docs
folder which contains the javadoc from <android-sdk>/extras/google/google_play_services/
to libs
folder of your project.
Copy google-play-services.jar
from <android-sdk>/extras/google/google_play_services/libproject/google-play-services_lib/libs
to 'libs' folder of your project.
In google-play-services_lib
project, edit libs/google-play-services.jar.properties . The <path>
in doc=<path>
should point to the subfolder reference
of the folder docs
, which you created in step 3.
In Eclipse, do Project > Clean. Done, javadoc is now linked.
gcc is a rich and complex "orchestrating" program that calls many other programs to perform its duties. For the specific purpose of seeing where #include "goo"
and #include <zap>
will search on your system, I recommend:
$ touch a.c
$ gcc -v -E a.c
...
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/usr/lib/gcc/i686-apple-darwin9/4.0.1/include
/usr/include
/System/Library/Frameworks (framework directory)
/Library/Frameworks (framework directory)
End of search list.
# 1 "a.c"
This is one way to see the search lists for included files, including (if any) directories into which #include "..."
will look but #include <...>
won't. This specific list I'm showing is actually on Mac OS X (aka Darwin) but the commands I recommend will show you the search lists (as well as interesting configuration details that I've replaced with ...
here;-) on any system on which gcc runs properly.
Add my two cents here. If you want to get user.name or user.email only without verbose output.
On liunx, type git config --list | grep user.name
.
On windows, type git config --list | findstr user.name
.
This will give you user.name only.
if put 'http_errors' => false
in guzzle request options, then it would stop throw exception while get 4xx or 5xx error, like this: $client->get(url, ['http_errors' => false])
. then you parse the response, not matter it's ok or error, it would be in the response
for more info
Remove those char * ret
declarations inside if
blocks which hide outer ret
. Therefor you have memory leak and on the other hand un-allocated memory for ret
.
To compare a c-style string you should use strcmp(array,"")
not array!=""
. Your final code should looks like below:
char* appendCharToCharArray(char* array, char a)
{
size_t len = strlen(array);
char* ret = new char[len+2];
strcpy(ret, array);
ret[len] = a;
ret[len+1] = '\0';
return ret;
}
Note that, you must handle the allocated memory of returned ret
somewhere by delete[]
it.
Why you don't use std::string
? it has .append
method to append a character at the end of a string:
std::string str;
str.append('x');
// or
str += x;
Some things to note:
You should always declare your enum inside a namespace as enums are not proper namespaces and you will be tempted to use them like one.
Always have a break at the end of each switch clause execution will continue downwards to the end otherwise.
Always include the default:
case in your switch.
Use variables of enum type to hold enum values for clarity.
see here for a discussion of the correct use of enums in C++.
This is what you want to do.
namespace choices
{
enum myChoice
{
EASY = 1 ,
MEDIUM = 2,
HARD = 3
};
}
int main(int c, char** argv)
{
choices::myChoice enumVar;
cin >> enumVar;
switch (enumVar)
{
case choices::EASY:
{
// do stuff
break;
}
case choices::MEDIUM:
{
// do stuff
break;
}
default:
{
// is likely to be an error
}
};
}
You can use a tool like the TrIDNet - File Identifier to look for the Magic Number and other telltales, if the file format is in it's database it may tell you what it is for.
However searching the definitions did not turn up anything for the string "FLDB", but it checks more than magic numbers so it is worth a try.
If you are using Linux File is a command that will do a similar task.
The other thing to try is if you have access to the program that generated this file, there may be DLL's or EXE's from the database software that may contain meta information about the dll's creator which could give you a starting point for looking for software that can read the file outside of the program that originally created the .db
file.
I know this question is old but the accepted answer does not work anymore and since this is the fist link on google search i'll tell how i solved this problem.
for eclipse using ubuntu:
go to Window->Preferences->Ant->Runtime->Select Ant_Home_Entries and click on add external jars then find in file explorer where your jdk is (default is in /usr/lib/jvm/) and in the lib folder of your jdk you will find the tool.jar. select this one and click apply.
try to build your project and things should work!
note: i hadn't used ant for a long time but needed it for ycsb couchbase workload generator (http://www.couchbase.com/wiki/display/couchbase/Load+Generator+Setup) if anyone is/was stuck on this.
There are many alternatives, check this list: Alternative IDEs to Visual Studio.NET, mirrored on Web Archive because the original link is down.
Action
is a Type of Delegate provided by the .NET framework. The Action
points to a method with no parameters and does not return a value.
() =>
is lambda expression syntax. Lambda expressions are not of Type Delegate
. Invoke requires Delegate
so Action
can be used to wrap the lambda expression and provide the expected Type
to Invoke()
Invoke
causes said Action
to execute on the thread that created the Control's window handle. Changing threads is often necessary to avoid Exceptions
. For example, if one tries to set the Rtf
property on a RichTextBox
when an Invoke is necessary, without first calling Invoke, then a Cross-thread operation not valid
exception will be thrown. Check Control.InvokeRequired
before calling Invoke.
BeginInvoke
is the Asynchronous version of Invoke
. Asynchronous means the thread will not block the caller as opposed to a synchronous call which is blocking.
Validation is easy, text them a little code to type in. A CharField is a great way to store it. I wouldn't worry too much about canonicalizing phone numbers.
You have to define your TASK_CAT
column first and then set foreign key on it.
private static final String TASK_TABLE_CREATE = "create table "
+ TASK_TABLE + " ("
+ TASK_ID + " integer primary key autoincrement, "
+ TASK_TITLE + " text not null, "
+ TASK_NOTES + " text not null, "
+ TASK_DATE_TIME + " text not null,"
+ TASK_CAT + " integer,"
+ " FOREIGN KEY ("+TASK_CAT+") REFERENCES "+CAT_TABLE+"("+CAT_ID+"));";
More information you can find on sqlite foreign keys doc.
SSMS only allows unlimited data for XML data. This is not the default and needs to be set in the options.
One trick which might work in quite limited circumstances is simply naming the column in a special manner as below so it gets treated as XML data.
DECLARE @S varchar(max) = 'A'
SET @S = REPLICATE(@S,100000) + 'B'
SELECT @S as [XML_F52E2B61-18A1-11d1-B105-00805F49916B]
In SSMS (at least versions 2012 to current of 18.3) this displays the results as below
Clicking on it opens the full results in the XML viewer. Scrolling to the right shows the last character of B is preserved,
However this does have some significant problems. Adding extra columns to the query breaks the effect and extra rows all become concatenated with the first one. Finally if the string contains characters such as <
opening the XML viewer fails with a parsing error.
A more robust way of doing this that avoids issues of SQL Server converting <
to <
etc or failing due to these characters is below (credit Adam Machanic here).
DECLARE @S varchar(max)
SELECT @S = ''
SELECT @S = @S + '
' + OBJECT_DEFINITION(OBJECT_ID) FROM SYS.PROCEDURES
SELECT @S AS [processing-instruction(x)] FOR XML PATH('')
install wkhtmltoimage on your server then use my package packagist.org/packages/tohidhabiby/htmltoimage for generate an image from url of your target.
It's because you're calling doGet()
without actually implementing doGet()
. It's the default implementation of doGet() that throws the error saying the method is not supported.
The trim() method removes whitespace from both sides of a string.
You can use a Javascript replace method to remove white space like
"hello world".replace(/\s/g, "");
var out = "hello world".replace(/\s/g, "");_x000D_
console.log(out);
_x000D_
It's easier to use the timestamp for this things since Tweepy gets both
import datetime
print(datetime.datetime.fromtimestamp(int(t1)).strftime('%H:%M'))
You can change the name of the column, therefore instead of "COUNT(*)" you would have something meaningful. You will have to update your "RowCount.sql" script for that.
For example:
SQL> select count(*) as RecordCountFromTableOne from TableOne;
Will be displayed as:
RecordCountFromTableOne
-----------------------
0
If you want to have space in the title, you need to enclose it in double quotes
SQL> select count(*) as "Record Count From Table One" from TableOne;
Will be displayed as:
Record Count From Table One
---------------------------
0
It worked for me like this:
Go to Wordpress Admin Dashboard > “Settings” > “Permalinks” > “Common settings”, set the radio button to “Custom Structure” and paste into the text box:
/index.php/%year%/%monthnum%/%day%/%postname%/
and click the Save button.
I got this solution from this link
To set the default to UTF-8, you want to add the following to my.cnf/my.ini
[client]
default-character-set=utf8mb4
[mysql]
default-character-set=utf8mb4
[mysqld]
collation-server = utf8mb4_unicode_520_ci
init-connect='SET NAMES utf8mb4'
character-set-server = utf8mb4
If you want to change the character set for an existing DB, let me know... your question didn't specify it directly so I am not sure if that's what you want to do.
Edit: I replaced utf8
with utf8mb4
in the original answer due to utf8
only being a subset of UTF-8. MySQL and MariaDB both call UTF-8 utf8mb4
.
The actual walk through the directories works as you have coded it. If you replace the contents of the inner loop with a simple print
statement you can see that each file is found:
import os
rootdir = 'C:/Users/sid/Desktop/test'
for subdir, dirs, files in os.walk(rootdir):
for file in files:
print os.path.join(subdir, file)
If you still get errors when running the above, please provide the error message.
Updated for Python3
import os
rootdir = 'C:/Users/sid/Desktop/test'
for subdir, dirs, files in os.walk(rootdir):
for file in files:
print(os.path.join(subdir, file))
This works for Python 2 & 3:
from itertools import islice
with open('/tmp/filename.txt') as inf:
for line in islice(inf, N, N+M):
print(line)
From a Stack Overflow reference
It did not work with value="" if the browser already saves the value so you should add.
For an input tag there's the attribute autocomplete you can set:
<input type="text" autocomplete="off" />
You can use autocomplete for a form too.
If you are using Linearlayout. its params should be "wrap_content" to add dynamic data in your layout xml. if you use match or fill parent then you cannot see the output.
It Should be like this.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content" android:layout_height="wrap_content">
<ListView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</ListView>
</LinearLayout>
As Wingman said, Google App Engine is a great solution for your scenario.
You can get some information about GAE+Android here: https://developers.google.com/eclipse/docs/appengine_connected_android
And from this Google IO 2012 session: http://www.youtube.com/watch?v=NU_wNR_UUn4
I have a reliable way to generate SQL inserts batly,and you can modify partial parameters in processing.It helps me a lot in my work, for example, copy one hundreds data to database with incompatible structure and fields count. IntellIJ DataGrip , the powerful tool i use. DG can batly receive data from WPS office or MS Excel by column or line. after copying, DG can export data as SQL inserts.
Thank you to everyone for answering.
We finally found the issue. In sys.databases, log_reuse_wait_desc was equal to 'replication'. Apparently this means something to the effect of SQL Server waiting for a replication task to finish before it can reuse the log space.
Replication has never been used on this DB or this server was toyed with once upon a time on this db. We cleared the incorrect state by running sp_removedbreplication. After we ran this, backup log and dbcc shrinkfile worked just fine.
Definitely one for the bag-of-tricks.
Sources:
http://www.eggheadcafe.com/conversation.aspx?messageid=34020486&threadid=33890705
Though I'm not sure, the image might not be added because you create the output before you add it. Try:
function convert(){
var doc = new jsPDF();
var imgData = 'data:image/jpeg;base64,'+ Base64.encode('Koala.jpeg');
console.log(imgData);
doc.setFontSize(40);
doc.text(30, 20, 'Hello world!');
doc.addImage(imgData, 'JPEG', 15, 40, 180, 160);
doc.output('datauri');
}
Do a describe on dba_arguments, dba_errors, dba_procedures, dba_objects, dba_source, dba_object_size. Each of these has part of the pictures for looking at the procedures and functions.
Also the object_type in dba_objects for packages is 'PACKAGE' for the definition and 'PACKAGE BODY" for the body.
If you are comparing schemas on the same database then try:
select * from dba_objects
where schema_name = 'ASCHEMA'
and object_type in ( 'PROCEDURE', 'PACKAGE', 'FUNCTION', 'PACKAGE BODY' )
minus
select * from dba_objects
where schema_name = 'BSCHEMA'
and object_type in ( 'PROCEDURE', 'PACKAGE', 'FUNCTION', 'PACKAGE BODY' )
and switch around the orders of ASCHEMA and BSCHEMA.
If you also need to look at triggers and comparing other stuff between the schemas you should take a look at the Article on Ask Tom about comparing schemas
I think that the first thing to say is that (IMHO at least) C's implementation of function pointers is REALLY hard to use. I would jump through a WHOLE lot of hoops to avoid function pointers...
that said, I think that what other people have said is pretty good. you have structures, you have modules, instead of foo->method(a,b,c)
, you end up with method(foo,a,b,c)
If you have more than one type with a "method" method, then you can prefix it with the type, so FOO_method(foo,a,b,c)
, as others have said... with good use of .h files you can get private and public, etc.
Now, there are a few things that this technique WON'T give you. It won't give you private data fields. that, I think, you have to do with willpower and good coding hygiene... Also, there isn't an easy way to do inheritance with this.
Those are the easy parts at least...the rest, I think is a 90/10 kind of situation. 10% of the benefit will require 90% of the work...
I'm really late to party here, but most of the answers seem to be about the whys and whens of using assertions in general, rather than using AssertionError
in particular.
assert
and throw new AssertionError()
are very similar and serve the same conceptual purpose, but there are differences.
throw new AssertionError()
will throw the exception regardless of whether assertions are enabled for the jvm (i.e., through the -ea
switch).throw new AssertionError()
will exit the block, so using it will let you avoid certain compiler errors that assert
will not.For example:
{
boolean b = true;
final int n;
if ( b ) {
n = 5;
} else {
throw new AssertionError();
}
System.out.println("n = " + n);
}
{
boolean b = true;
final int n;
if ( b ) {
n = 5;
} else {
assert false;
}
System.out.println("n = " + n);
}
The first block, above, compiles just fine. The second block does not compile, because the compiler cannot guarantee that n
has been initialized by the time the code tries to print it out.
This is an update to this thread which has some old answers.
For those using MAC-OS Catalina or some newer (>= 10.15), it was introduced a new Terminal named zsh
(a substitute to the old bash
).
I had some problems with the answers above due to this change, and I somewhat did a workaround by creating the file ~/.zshrc
and pasting the file directory to the $PATH
and $PYTHONPATH
So, first I did:
nano ~/.zshrc
When the editor opened I pasted the following content:
export PATH="${PATH}:/Users/caio.hc.oliveira/Library/Python/3.7/bin"
export PYTHONPATH="${PYTHONPATH}:/Users/caio.hc.oliveira/Library/Python/3.7/bin"
saved it, and restarted the terminal.
IMPORTANT: The path above is set to my computer's path, you would have to adapt it to your python.
This is actually a multi-step process. First you'll need to add all your files to the current stage:
git add .
You can verify that your files will be added when you commit by checking the status of the current stage:
git status
The console should display a message that lists all of the files that are currently staged, like this:
# On branch master
#
# Initial commit
#
# Changes to be committed:
# (use "git rm --cached <file>..." to unstage)
#
# new file: README
# new file: src/somefile.js
#
If it all looks good then you're ready to commit. Note that the commit action only commits to your local repository.
git commit -m "some message goes here"
If you haven't connected your local repository to a remote one yet, you'll have to do that now. Assuming your remote repository is hosted on GitHub and named "Some-Awesome-Project", your command is going to look something like this:
git remote add origin [email protected]:username/Some-Awesome-Project
It's a bit confusing, but by convention we refer to the remote repository as 'origin' and the initial local repository as 'master'. When you're ready to push your commits to the remote repository (origin), you'll need to use the 'push' command:
git push origin master
For more information check out the tutorial on GitHub: http://learn.github.com/p/intro.html
Two issues with answers given so far, if , for instance, one streams such non-standard JSON. Because then one might have to interpret an incoming string (not a python dictionary).
Issue 1 - demjson
:
With Python 3.7.+ and using conda I wasn't able to install demjson since obviosly it does not support Python >3.5 currently. So I need a solution with simpler means, for instance ast
and/or json.dumps
.
Issue 2 - ast
& json.dumps
:
If a JSON is both single quoted and contains a string in at least one value, which in turn contains single quotes, the only simple yet practical solution I have found is applying both:
In the following example we assume line
is the incoming JSON string object :
>>> line = str({'abc':'008565','name':'xyz','description':'can control TV\'s and more'})
Step 1: convert the incoming string into a dictionary using ast.literal_eval()
Step 2: apply json.dumps
to it for the reliable conversion of keys and values, but without touching the contents of values:
>>> import ast
>>> import json
>>> print(json.dumps(ast.literal_eval(line)))
{"abc": "008565", "name": "xyz", "description": "can control TV's and more"}
json.dumps
alone would not do the job because it does not interpret the JSON, but only see the string. Similar for ast.literal_eval()
: although it interprets correctly the JSON (dictionary), it does not convert what we need.
This will get you count:
get-alias | measure
You can work with the result as with object:
$m = get-alias | measure
$m.Count
And if you would like to have aliases in some variable also, you can use Tee-Object:
$m = get-alias | tee -Variable aliases | measure
$m.Count
$aliases
Some more info on Measure-Object cmdlet is on Technet.
Do not confuse it with Measure-Command cmdlet which is for time measuring. (again on Technet)
var template = $( "<li>", { id: "1234", html:
$( "<div>", { class: "bar", text: "bla" } )
});
$('body').append(template);
What about this?
add an ALIAS
on the subquery,
SELECT COUNT(made_only_recharge) AS made_only_recharge
FROM
(
SELECT DISTINCT (identifiant) AS made_only_recharge
FROM cdr_data
WHERE CALLEDNUMBER = '0130'
EXCEPT
SELECT DISTINCT (identifiant) AS made_only_recharge
FROM cdr_data
WHERE CALLEDNUMBER != '0130'
) AS derivedTable -- <<== HERE
1) Go to "Window".
2) Then click on "Open Perspective",
3) Then click on "Other",
4) Select "Java(Default)" and click "OK"
Then again go to "Window" and click on "Reset Perspective"
I got your problem...
Although we can clear client browser cache completely but you can add some code to your application so that your recent changes reflect to client browser.
In your <head>
:
<meta http-equiv="Cache-Control" content="no-cache" />
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="0" />
Source: http://goo.gl/JojsO