If anyone needs to do this outside the context of the Visual Studio application - via command-line for example, I wrote a small tool which will strip the source control bindings from Solution And Project files. The source is available here: https://github.com/saveenr/VS_unbind_source_control
As far as I know it’s usually a placeholder for links that have some JavaScript attached to them. The main point of the link is served by executing the JavaScript code; browsers with JS support then ignore the real link target. If the browser does not support JS, the hash mark essentially turns the link into a no-op. See also unobtrusive JavaScript.
POCOs(Plain old CLR objects) are simply entities of your Domain. Normally when we use entity framework the entities are generated automatically for you. This is great but unfortunately these entities are interspersed with database access functionality which is clearly against the SOC (Separation of concern). POCOs are simple entities without any data access functionality but still gives the capabilities all EntityObject functionalities like
Here is a good start for this
You can also generate POCOs so easily from your existing Entity framework project using Code generators.
(oldSize * 3)/2 + 1
If you are using default constructor then initial size of ArrayList
will be 10
else you can pass the initial size of array while creating the object of ArrayList
.
Example: In case default constructor
List<String> list = new ArrayList<>();
list.size()
Example: In case parameterized constructor
List<String> list = new ArrayList<>(5);
list.size()
If you are using Spring framework. Modify your application.properties file as below
#Logging JPA Queries, 1st line Log Query. 2nd line Log parameters of prepared statements
logging.level.org.hibernate.SQL=DEBUG
logging.level.org.hibernate.type.descriptor.sql.BasicBinder=TRACE
#Logging JdbcTemplate Queries, 1st line Log Query. 2nd line Log parameters of prepared statements
logging.level.org.springframework.jdbc.core.JdbcTemplate=DEBUG
logging.level.org.springframework.jdbc.core.StatementCreatorUtils=TRACE
I've been looking for an easy to use tool for this type of testing for a while now. I just came across this the other day: Network Delay Simulator
If you're running Windows, you should check it out. It was super easy to set up and get going, and seems to work really well. It allows you to define bandwidth, latency, and packet loss in each direction. The other really nice thing is that you can define "Flow Match Conditions" so that it only affects the traffic you want it to. Oh yeah, and it's free.
This is quick-and-dirty (and not formally valid HTML5), but it seems to work -- and it is inline as per the question:
<table border='1' style='border-collapse:collapse'>
No further styling of <tr>
/<td>
tags is required (for a basic table grid).
You should all know this is inline scripting and is not a good practice at all...with that said you should definitively use javascript or jQuery for this type of thing:
HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Online Student Portal</title>
</head>
<body>
<form action="">
<input type="button" id="myButton" value="Add"/>
</form>
</body>
</html>
JQuery
var button_my_button = "#myButton";
$(button_my_button).click(function(){
window.location.href='Students.html';
});
Javascript
//get a reference to the element
var myBtn = document.getElementById('myButton');
//add event listener
myBtn.addEventListener('click', function(event) {
window.location.href='Students.html';
});
See comments why avoid inline scripting and also why inline scripting is bad
Sorry for late reply but still felt like posting my answer if it helps.It works for 6 digits OTP.
@Override
public void onOTPReceived(String messageBody)
{
Pattern pattern = Pattern.compile(SMSReceiver.OTP_REGEX);
Matcher matcher = pattern.matcher(messageBody);
String otp = HkpConstants.EMPTY;
while (matcher.find())
{
otp = matcher.group();
}
checkAndSetOTP(otp);
}
Adding constants here
public static final String OTP_REGEX = "[0-9]{1,6}";
For SMS listener one can follow the below class
public class SMSReceiver extends BroadcastReceiver
{
public static final String SMS_BUNDLE = "pdus";
public static final String OTP_REGEX = "[0-9]{1,6}";
private static final String FORMAT = "format";
private OnOTPSMSReceivedListener otpSMSListener;
public SMSReceiver(OnOTPSMSReceivedListener listener)
{
otpSMSListener = listener;
}
@Override
public void onReceive(Context context, Intent intent)
{
Bundle intentExtras = intent.getExtras();
if (intentExtras != null)
{
Object[] sms_bundle = (Object[]) intentExtras.get(SMS_BUNDLE);
String format = intent.getStringExtra(FORMAT);
if (sms_bundle != null)
{
otpSMSListener.onOTPSMSReceived(format, sms_bundle);
}
else {
// do nothing
}
}
}
@FunctionalInterface
public interface OnOTPSMSReceivedListener
{
void onOTPSMSReceived(@Nullable String format, Object... smsBundle);
}
}
@Override
public void onOTPSMSReceived(@Nullable String format, Object... smsBundle)
{
for (Object aSmsBundle : smsBundle)
{
SmsMessage smsMessage = getIncomingMessage(format, aSmsBundle);
String sender = smsMessage.getDisplayOriginatingAddress();
if (sender.toLowerCase().contains(ONEMG))
{
getIncomingMessage(smsMessage.getMessageBody());
} else
{
// do nothing
}
}
}
private SmsMessage getIncomingMessage(@Nullable String format, Object aObject)
{
SmsMessage currentSMS;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && format != null)
{
currentSMS = SmsMessage.createFromPdu((byte[]) aObject, format);
} else
{
currentSMS = SmsMessage.createFromPdu((byte[]) aObject);
}
return currentSMS;
}
anyItem has never been declared as a variable, so it makes sense that it causes an error. But more importantly, you have code after a return statement and this will cause an unreachable code error.
I find this way readable and rubyish:
add_quotes =- > x{"'#{x}'"}
p ['12','34','35','231'].map(&add_quotes).join(',') => "'12','34','35','231'"
When you write to the file via file output stream, the file will be created automatically. but make sure all necessary directories ( folders) are created.
String absolutePath = ...
try{
File file = new File(absolutePath);
file.mkdirs() ;
//all parent folders are created
//now the file will be created when you start writing to it via FileOutputStream.
}catch (Exception e){
System.out.println("Error : "+ e.getmessage());
}
('.cat').hover(
function () {
$(this).show();
},
function () {
$(this).hide();
}
);
It's the same for the others.
For the smooth fade in you can use fadeIn
and fadeOut
On Android 6+ follow this path: Settings -> Google -> Security -> Verify Apps Uncheck them all! Now you're good to GO!!!
You need to use v-bind:
or its alias :
. For example,
<a v-bind:href="'/job/'+ r.id">
or
<a :href="'/job/' + r.id">
This works for me:
1) Stop the ng server
2) Reinstall your package
npm install your-package-name
3) Run all again
ng serve
Have you verified that there is in fact a row where Staff_Id = @PersonID? What you've posted works fine in a test script, assuming the row exists. If you comment out the insert statement, then the error is raised.
set nocount on
create table Timesheet_Hours (Staff_Id int, BookedHours int, Posted_Flag bit)
insert into Timesheet_Hours (Staff_Id, BookedHours, Posted_Flag) values (1, 5.5, 0)
declare @PersonID int
set @PersonID = 1
IF EXISTS
(
SELECT 1
FROM Timesheet_Hours
WHERE Posted_Flag = 1
AND Staff_Id = @PersonID
)
BEGIN
RAISERROR('Timesheets have already been posted!', 16, 1)
ROLLBACK TRAN
END
ELSE
IF NOT EXISTS
(
SELECT 1
FROM Timesheet_Hours
WHERE Staff_Id = @PersonID
)
BEGIN
RAISERROR('Default list has not been loaded!', 16, 1)
ROLLBACK TRAN
END
ELSE
print 'No problems here'
drop table Timesheet_Hours
The error you are receiving is due to how you define jet
. You are creating the base class Colormap
with the name 'jet', but this is very different from getting the default definition of the 'jet' colormap. This base class should never be created directly, and only the subclasses should be instantiated.
What you've found with your example is a buggy behavior in Matplotlib. There should be a clearer error message generated when this code is run.
This is an updated version of your example:
import matplotlib.pyplot as plt
import matplotlib.colors as colors
import matplotlib.cm as cmx
import numpy as np
# define some random data that emulates your indeded code:
NCURVES = 10
np.random.seed(101)
curves = [np.random.random(20) for i in range(NCURVES)]
values = range(NCURVES)
fig = plt.figure()
ax = fig.add_subplot(111)
# replace the next line
#jet = colors.Colormap('jet')
# with
jet = cm = plt.get_cmap('jet')
cNorm = colors.Normalize(vmin=0, vmax=values[-1])
scalarMap = cmx.ScalarMappable(norm=cNorm, cmap=jet)
print scalarMap.get_clim()
lines = []
for idx in range(len(curves)):
line = curves[idx]
colorVal = scalarMap.to_rgba(values[idx])
colorText = (
'color: (%4.2f,%4.2f,%4.2f)'%(colorVal[0],colorVal[1],colorVal[2])
)
retLine, = ax.plot(line,
color=colorVal,
label=colorText)
lines.append(retLine)
#added this to get the legend to work
handles,labels = ax.get_legend_handles_labels()
ax.legend(handles, labels, loc='upper right')
ax.grid()
plt.show()
Resulting in:
Using a ScalarMappable
is an improvement over the approach presented in my related answer:
creating over 20 unique legend colors using matplotlib
The syntax is changed for Angular 2 and above:
[ngStyle]="{'background-image': 'url(path)'}"
C:/blah/blah/foldercontainJava
javac javafile.java
Here is an example that should help. If you have a timestamp with a timezone, you can convert that timestamp into any other timezone. If you haven't got a base timezone it won't be converted correctly.
SELECT now(),
now()::timestamp,
now() AT TIME ZONE 'CST',
now()::timestamp AT TIME ZONE 'CST'
Output:
-[ RECORD 1 ]---------------------------
now | 2018-09-15 17:01:36.399357+03
now | 2018-09-15 17:01:36.399357
timezone | 2018-09-15 08:01:36.399357
timezone | 2018-09-16 02:01:36.399357+03
The JVM doesn't know anything about off-heap memory. Ehcache implements an on-disk cache as well as an in-memory cache.
At technet there is a good explanation for how null values work.
Null means unknown.
Therefore the Boolean expression
value=null
does not evaluate to false, it evaluates to null, but if that is the final result of a where clause, then nothing is returned. That is a practical way to do it, since returning null would be difficult to conceive.
It is interesting and very important to understand the following:
If in a query we have
where (value=@param Or @param is null) And id=@anotherParam
and
then
"value=@param" evaluates to null
"@param is null" evaluates to true
"id=@anotherParam" evaluates to true
So the expression to be evaluated becomes
(null Or true) And true
We might be tempted to think that here "null Or true" will be evaluated to null and thus the whole expression becomes null and the row will not be returned.
This is not so. Why?
Because "null Or true" evaluates to true, which is very logical, since if one operand is true with the Or-operator, then no matter the value of the other operand, the operation will return true. Thus it does not matter that the other operand is unknown (null).
So we finally have true=true and thus the row will be returned.
Note: with the same crystal clear logic that "null Or true" evaluates to true, "null And true" evaluates to null.
Update:
Ok, just to make it complete I want to add the rest here too which turns out quite fun in relation to the above.
"null Or false" evaluates to null, "null And false" evaluates to false. :)
The logic is of course still as self-evident as before.
Swift 4.x/5.0 version of @an0
's solution:
extension UIImage {
func upOrientationImage() -> UIImage? {
switch imageOrientation {
case .up:
return self
default:
UIGraphicsBeginImageContextWithOptions(size, false, scale)
draw(in: CGRect(origin: .zero, size: size))
let result = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return result
}
}
}
Always use UTC:
For example I have a schedule component that takes in one parameter DATETIME. When I call this using a GET verb I use the following format where my incoming parameter name is scheduleDate.
Example:
https://localhost/api/getScheduleForDate?scheduleDate=2003-11-21T01:11:11Z
Please try this-
ALTER TABLE TABLE_NAME DROP INDEX `PRIMARY`, ADD PRIMARY KEY (COLUMN1, COLUMN2,..);
This is more of an example where TABLOCK did not work for me and TABLOCKX did.
I have 2 sessions, that both use the default (READ COMMITTED) isolation level:
Session 1 is an explicit transaction that will copy data from a linked server to a set of tables in a database, and takes a few seconds to run. [Example, it deletes Questions] Session 2 is an insert statement, that simply inserts rows into a table that Session 1 doesn't make changes to. [Example, it inserts Answers].
(In practice there are multiple sessions inserting multiple records into the table, simultaneously, while Session 1 is running its transaction).
Session 1 has to query the table Session 2 inserts into because it can't delete records that depend on entries that were added by Session 2. [Example: Delete questions that have not been answered].
So, while Session 1 is executing and Session 2 tries to insert, Session 2 loses in a deadlock every time.
So, a delete statement in Session 1 might look something like this: DELETE tblA FROM tblQ LEFT JOIN tblX on ... LEFT JOIN tblA a ON tblQ.Qid = tblA.Qid WHERE ... a.QId IS NULL and ...
The deadlock seems to be caused from contention between querying tblA while Session 2, [3, 4, 5, ..., n] try to insert into tblA.
In my case I could change the isolation level of Session 1's transaction to be SERIALIZABLE. When I did this: The transaction manager has disabled its support for remote/network transactions.
So, I could follow instructions in the accepted answer here to get around it: The transaction manager has disabled its support for remote/network transactions
But a) I wasn't comfortable with changing the isolation level to SERIALIZABLE in the first place- supposedly it degrades performance and may have other consequences I haven't considered, b) didn't understand why doing this suddenly caused the transaction to have a problem working across linked servers, and c) don't know what possible holes I might be opening up by enabling network access.
There seemed to be just 6 queries within a very large transaction that are causing the trouble.
So, I read about TABLOCK and TabLOCKX.
I wasn't crystal clear on the differences, and didn't know if either would work. But it seemed like it would. First I tried TABLOCK and it didn't seem to make any difference. The competing sessions generated the same deadlocks. Then I tried TABLOCKX, and no more deadlocks.
So, in six places, all I needed to do was add a WITH (TABLOCKX).
So, a delete statement in Session 1 might look something like this: DELETE tblA FROM tblQ q LEFT JOIN tblX x on ... LEFT JOIN tblA a WITH (TABLOCKX) ON tblQ.Qid = tblA.Qid WHERE ... a.QId IS NULL and ...
<asp:DropDownList ID="DropUserType" ClientIDMode="Static" runat="server">
<asp:ListItem Value="1" Text="aaa"></asp:ListItem>
<asp:ListItem Value="2" Text="bbb"></asp:ListItem>
</asp:DropDownList>
ClientIDMode="Static"
$('#DropUserType').val('1');
To really convert from a string to a number properly, you need to use an instance of NSNumberFormatter
configured for the locale from which you're reading the string.
Different locales will format numbers differently. For example, in some parts of the world, COMMA
is used as a decimal separator while in others it is PERIOD
— and the thousands separator (when used) is reversed. Except when it's a space. Or not present at all.
It really depends on the provenance of the input. The safest thing to do is configure an NSNumberFormatter
for the way your input is formatted and use -[NSFormatter numberFromString:]
to get an NSNumber
from it. If you want to handle conversion errors, you can use -[NSFormatter getObjectValue:forString:range:error:]
instead.
None of the above answers satisfied me. I found the best solution is to include a hidden input before each checkbox input with the same name.
<input type="hidden" name="foo[]" value="off"/>
<input type="checkbox" name="foo[]"/>
Then on the server side, using a little algorithm you can get something more like HTML should provide.
function checkboxHack(array $checkbox_input): array
{
$foo = [];
foreach($checkbox_input as $value) {
if($value === 'on') {
array_pop($foo);
}
$foo[] = $value;
}
return $foo;
}
This will be the raw input
array (
0 => 'off',
1 => 'on',
2 => 'off',
3 => 'off',
4 => 'on',
5 => 'off',
6 => 'on',
),
And the function will return
array (
0 => 'on',
1 => 'off',
2 => 'on',
3 => 'on',
)
Reinstall JDK and set system variable JAVA_HOME on your JDK. (e.g. C:\tools\jdk7)
And add JAVA_HOME variable to your PATH system variable
Type in command line
echo %JAVA_HOME%
and
java -version
To verify whether your installation was done successfully.
This problem generally occurs in Windows when your "Java Runtime Environment" registry entry is missing or mismatched with the installed JDK. The mismatch can be due to multiple JDKs.
Steps to resolve:
Open the Run window:
Press windows+R
Open registry window:
Type regedit
and enter.
Go to: \HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\
If Java Runtime Environment is not present inside JavaSoft, then create a new Key and give the name Java Runtime Environment.
For Java Runtime Environment create "CurrentVersion" String Key and give appropriate version as value:
Create a new subkey of 1.8.
For 1.8 create a String Key with name JavaHome with the value of JRE home:
Ref: https://mybindirectory.blogspot.com/2019/05/error-could-not-find-javadll.html
The use of that
is not really necessary if you make a workaround with the use of call()
or apply()
:
var car = {};
car.starter = {};
car.start = function(){
this.starter.active = false;
var activateStarter = function(){
// 'this' now points to our main object
this.starter.active = true;
};
activateStarter.apply(this);
};
Try this:
CREATE TABLE SCHEMA.NEW_TB LIKE SCHEMA.OLD_TB;
INSERT INTO SCHEMA.NEW_TB (SELECT * FROM SCHEMA.OLD_TB);
Options that are not copied include:
Sorry to resurrect an old question, but I thought I might contribute a couple of very basic examples and for-dummies explanations. None of the other answers posted thusfar illustrate syntax like the MDN guide's first example, which is about as basic as one can get.
Getter:
var settings = {
firstname: 'John',
lastname: 'Smith',
get fullname() { return this.firstname + ' ' + this.lastname; }
};
console.log(settings.fullname);
... will log John Smith
, of course. A getter behaves like a variable object property, but offers the flexibility of a function to calculate its returned value on the fly. It's basically a fancy way to create a function that doesn't require () when calling.
Setter:
var address = {
set raw(what) {
var loc = what.split(/\s*;\s*/),
area = loc[1].split(/,?\s+(\w{2})\s+(?=\d{5})/);
this.street = loc[0];
this.city = area[0];
this.state = area[1];
this.zip = area[2];
}
};
address.raw = '123 Lexington Ave; New York NY 10001';
console.log(address.city);
... will log New York
to the console. Like getters, setters are called with the same syntax as setting an object property's value, but are yet another fancy way to call a function without ().
See this jsfiddle for a more thorough, perhaps more practical example. Passing values into the object's setter triggers the creation or population of other object items. Specifically, in the jsfiddle example, passing an array of numbers prompts the setter to calculate mean, median, mode, and range; then sets object properties for each result.
row from a database table
For anyone coming across this thread, here's a script called thatsNotYoChild.js that I just wrote that solves this problem automatically:
http://www.impressivewebs.com/fixing-parent-child-opacity/
Basically, it separates children from the parent element, but keeps the element in the same physical location on the page.
See javadoc
out = some stream ...
try
{
}
catch ( Exception cause )
{
cause . printStrackTrace ( new PrintStream ( out ) ) ;
}
if you have installed NDK succesfully then start with it sample application
http://developer.android.com/sdk/ndk/overview.html#samples
if you are interested another ways of this then may this will help
http://shareprogrammingtips.blogspot.com/2018/07/cross-compile-cc-based-programs-and-run.html
I also want to know is it possible to push the compiled binary into android device or AVD and run using the terminal of the android device or AVD?
here you can see NestedVM
NestedVM provides binary translation for Java Bytecode. This is done by having GCC compile to a MIPS binary which is then translated to a Java class file. Hence any application written in C, C++, Fortran, or any other language supported by GCC can be run in 100% pure Java with no source changes.
Example: Cross compile Hello world C program and run it on android
The list selector drawable is a StateListDrawable
— it contains reference to multiple drawables for each state the list can be, like selected, focused, pressed, disabled...
While you can retrieve the drawable using getSelector()
, I don't believe you can retrieve a specific Drawable
from a StateListDrawable
, nor does it seem possible to programmatically retrieve the colour directly from a ColorDrawable
anyway.
As for setting the colour, you need a StateListDrawable
as described above. You can set this on your list using the android:listSelector
attribute, defining the drawable in XML like this:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_enabled="false" android:state_focused="true"
android:drawable="@drawable/item_disabled" />
<item android:state_pressed="true"
android:drawable="@drawable/item_pressed" />
<item android:state_focused="true"
android:drawable="@drawable/item_focused" />
</selector>
I think throw a new error is good approach to stop execution rather than just return or return false. For ex. I am validating a number of files that I only allow max five files for upload in separate function.
validateMaxNumber: function(length) {
if (5 >= length) {
// Continue execution
}
// Flash error message and stop execution
// Can't stop execution by return or return false statement;
let message = "No more than " + this.maxNumber + " File is allowed";
throw new Error(message);
}
But I am calling this function from main flow function as
handleFilesUpload() {
let files = document.getElementById("myFile").files;
this.validateMaxNumber(files.length);
}
In the above example I can't stop execution unless I throw new Error.Just return or return false only works if you are in main function of execution otherwise it doesn't work.
I had an issue somebody made a revert to master to my branch, but I was needed to be able to merge it again but the problem is that the revert included all my commit. Lets look at that case we created our feature branch from M1 we merge our feature branch in M3 and revert on it in RM3
M1 -> M2 -> M3 -> M4- > RM3 -> M5
\. /
F1->F2 -
How to make the F2 able to merge to M5?
git checkout master
git checkout -b brach-before-revert
git reset --hard M4
git checkout master
git checkout -b new-feature-branch
git reset --hard M1
git merge --squash brach-before-revert
Don't parse it. Just ask.
import socket
try:
socket.inet_aton(addr)
# legal
except socket.error:
# Not legal
This is pretty old, but I ran across this question via Google, so perhaps this solution might be useful to others.
function GetObjectName(myObject){
var objectName=JSON.stringify(myObject).match(/"(.*?)"/)[1];
return objectName;
}
It just uses the browser's JSON parser and regex without cluttering up the DOM or your object too much.
Simply use:
public static int[] intArrayToIntegerArray(int[] a) {
Integer[] b = new Integer[a.length];
for(int i = 0; i < array.length; i++){
b[i] = a[i];
}
return g;
}
If you're trying to do stuff with the Java default system keystore (cacerts
), then the default password is changeit
.
You can list keys without needing the password (even if it prompts you) so don't take that as an indication that it is blank.
(Incidentally who in the history of Java ever has changed the default keystore password? They should have left it blank.)
CSS3 allows this sort of thing and it looks like this:
body {
background-image: url(images/bgtop.png), url(images/bg.png);
background-repeat: repeat-x, repeat;
}
The current versions of all the major browsers now support it, however if you need to support IE8 or below, then the best way you can work around it is to have extra divs:
<body>
<div id="bgTopDiv">
content here
</div>
</body>
body{
background-image: url(images/bg.png);
}
#bgTopDiv{
background-image: url(images/bgTop.png);
background-repeat: repeat-x;
}
If you want to add a product into the array you can use:
$item['product'] = $product;
Following worked for me
Enable project-specific settings and set the compliance level to 1.6
How can you do that?
In your Eclipse Package Explorer
3rd click on your project and select properties
. Properties Window will open. Select Java Compiler
on the left panel of the window. Now Enable project specific settings
and set the Complier compliance level
to 1.6
. Select Apply
and then OK
.
Your best bet is the RandomLib library by ircmaxell.
Usage example:
$factory = new RandomLib\Factory;
$generator = $factory->getGenerator(new SecurityLib\Strength(SecurityLib\Strength::MEDIUM));
$passwordLength = 8; // Or more
$randomPassword = $generator->generateString($passwordLength);
It produces strings which are more strongly random than the normal randomness functions like shuffle()
and rand()
(which is what you generally want for sensitive information like passwords, salts and keys).
It seems a window manager is what you want. The problem is finding one that works.
I use a tiling window manager in Linux (dwm) and it seems to do exactly what you are after, PLUS it has multiple workspaces which is what I thought you were going for at first.
A tiling window manager has no concept of "maximized" windows. All windows take up the full amount of space that they are allotted, and they never overlap. When you only have one window up on the screen, it gets the full screen. Open up another window, and it opens next to the first, while the first re-sizes automatically to take up only part of the screen. In dwm, the split between them is adjustable with keystrokes. Additional windows each take up their own allotted space on the screen, and any existing windows re-size to accommodate them depending on the particular layout you have chosen.
Workspaces use "tags"; any window can have one or more tags, and you can choose to see any windows that have one or more of a certain set of tags at a time. Thus you can hide windows that you don't want to see, and let the other windows take up more space.
Unfortunately, the few tiling add-ons I've tried for Windows don't work anywhere near as well. Although dwm has a few quirks with certain apps that use an SDI-style interface like Gimp or Pidgin (you can set windows as "floating" above the tiled layout to work around this), I've never had it get confused about where my windows are or shove windows off the screen like some of the window managers I've tried on Windows. If anyone knows of something with equivalent functionality that actually WORKS on Windows, I would love to know about it.
I ran into this problem myself and realized that it was because of a side-effect of a Filter that I created which was filtering all requests on the appliation. As soon as I modified the filter to pick only certain requests, this problem did not occur. It maybe good to check for such filters in your application and see how they behave.
1) To redirect to the login page / from the login page, don't use the Redirect() methods. Use FormsAuthentication.RedirectToLoginPage()
and FormsAuthentication.RedirectFromLoginPage()
!
2) You should just use RedirectToAction("action", "controller") in regular scenarios..
You want to redirect in side the Initialize method? Why? I don't see why would you ever want to do this, and in most cases you should review your approach imo.. If you want to do this for authentication this is DEFINITELY the wrong way (with very little chances foe an exception)
Use the [Authorize]
attribute on your controller or method instead :)
UPD: if you have some security checks in the Initialise method, and the user doesn't have access to this method, you can do a couple of things: a)
Response.StatusCode = 403;
Response.End();
This will send the user back to the login page. If you want to send him to a custom location, you can do something like this (cautios: pseudocode)
Response.Redirect(Url.Action("action", "controller"));
No need to specify the full url. This should be enough. If you completely insist on the full url:
Response.Redirect(new Uri(Request.Url, Url.Action("action", "controller")).ToString());
Apparently \r
is the key!
$ sed 's/, /\r/g' file3.txt > file4.txt
Transformed this:
ABFS, AIRM, AMED, BOSC, CALI, ECPG, FRGI, GERN, GTIV, HSON, IQNT, JRCC, LTRE,
MACK, MIDD, NKTR, NPSP, PME, PTIX, REFR, RSOL, UBNT, UPI, YONG, ZEUS
To this:
ABFS
AIRM
AMED
BOSC
CALI
ECPG
FRGI
GERN
GTIV
HSON
IQNT
JRCC
LTRE
MACK
MIDD
NKTR
NPSP
PME
PTIX
REFR
RSOL
UBNT
UPI
YONG
ZEUS
Right-click on an aspx file and choose 'browse with'. I think there's an option there to set as default.
String[] result = "hi i'm paul".split("\\s+");
to split across one or more cases.
Or you could take a look at Apache Common StringUtils. It has StringUtils.split(String str)
method that splits string using white space as delimiter. It also has other useful utility methods
An updated version of 'user2466387' version, with an additional small test which can improve performance, because it's useless to test non nullable columns:
AND IS_NULLABLE = 'YES'
The full code:
SET NOCOUNT ON;
DECLARE
@ColumnName sysname
,@DataType nvarchar(128)
,@cmd nvarchar(max)
,@TableSchema nvarchar(128) = 'dbo'
,@TableName sysname = 'TableName';
DECLARE getinfo CURSOR FOR
SELECT
c.COLUMN_NAME
,c.DATA_TYPE
FROM
INFORMATION_SCHEMA.COLUMNS AS c
WHERE
c.TABLE_SCHEMA = @TableSchema
AND c.TABLE_NAME = @TableName
AND IS_NULLABLE = 'YES';
OPEN getinfo;
FETCH NEXT FROM getinfo INTO @ColumnName, @DataType;
WHILE @@FETCH_STATUS = 0
BEGIN
SET @cmd = N'IF NOT EXISTS (SELECT * FROM ' + @TableSchema + N'.' + @TableName + N' WHERE [' + @ColumnName + N'] IS NOT NULL) RAISERROR(''' + @ColumnName + N' (' + @DataType + N')'', 0, 0) WITH NOWAIT;';
EXECUTE (@cmd);
FETCH NEXT FROM getinfo INTO @ColumnName, @DataType;
END;
CLOSE getinfo;
DEALLOCATE getinfo;
This will return the first 200 characters of words:
preg_replace('/\s+?(\S+)?$/', '', substr($string, 0, 201));
select FOUND_ROWS();
will return no. of records selected by select query.
Checkout intent properties like no history , clear back stack etc ... Intent.setFlags
Intent mStartActivity = new Intent(HomeActivity.this, SplashScreen.class);
int mPendingIntentId = 123456;
PendingIntent mPendingIntent = PendingIntent.getActivity(HomeActivity.this, mPendingIntentId, mStartActivity,
PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager mgr = (AlarmManager) HomeActivity.this.getSystemService(Context.ALARM_SERVICE);
mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 100, mPendingIntent);
System.exit(0);
I ran into a similar situation trying to convert a table with several 100k rows with a C++ program (MFC/ODBC).
Since this operation took a very long time, I figured bundling multiple inserts into one (up to 1000 due to MSSQL limitations). My guess that a lot of single insert statements would create an overhead similar to what is described here.
However, it turns out that the conversion took actually quite a bit longer:
Method 1 Method 2 Method 3
Single Insert Multi Insert Joined Inserts
Rows 1000 1000 1000
Insert 390 ms 765 ms 270 ms
per Row 0.390 ms 0.765 ms 0.27 ms
So, 1000 single calls to CDatabase::ExecuteSql each with a single INSERT statement (method 1) are roughly twice as fast as a single call to CDatabase::ExecuteSql with a multi-line INSERT statement with 1000 value tuples (method 2).
Update: So, the next thing I tried was to bundle 1000 separate INSERT statements into a single string and have the server execute that (method 3). It turns out this is even a bit faster than method 1.
Edit: I am using Microsoft SQL Server Express Edition (64-bit) v10.0.2531.0
difference-between-value-object-pattern-and-data-transfer-pattern
I found this to work nicely
function drawCurve(points, tension) {
ctx.beginPath();
ctx.moveTo(points[0].x, points[0].y);
var t = (tension != null) ? tension : 1;
for (var i = 0; i < points.length - 1; i++) {
var p0 = (i > 0) ? points[i - 1] : points[0];
var p1 = points[i];
var p2 = points[i + 1];
var p3 = (i != points.length - 2) ? points[i + 2] : p2;
var cp1x = p1.x + (p2.x - p0.x) / 6 * t;
var cp1y = p1.y + (p2.y - p0.y) / 6 * t;
var cp2x = p2.x - (p3.x - p1.x) / 6 * t;
var cp2y = p2.y - (p3.y - p1.y) / 6 * t;
ctx.bezierCurveTo(cp1x, cp1y, cp2x, cp2y, p2.x, p2.y);
}
ctx.stroke();
}
They always say it depends but when it comes to mirroring a website The best exists httrack. It is super fast and easy to work. The only downside is it's so called support forum but you can find your way using official documentation. It has both GUI and CLI interface and it Supports cookies just read the docs This is the best.(Be cureful with this tool you can download the whole web on your harddrive)
httrack -c8 [url]
By default maximum number of simultaneous connections limited to 8 to avoid server overload
You don't need the CELL() part of your formulas:
=INDIRECT(ADDRESS(B1,B2))
or
=OFFSET($A$1, B1-1,B2-1)
will both work. Note that both INDIRECT
and OFFSET
are volatile functions. Volatile functions can slow down calculation because they are calculated at every single recalculation.
BufferedReader reader = new BufferedReader(new FileReader("file.txt"));
int lines = 0;
while (reader.readLine() != null) lines++;
reader.close();
Update: To answer the performance-question raised here, I made a measurement. First thing: 20.000 lines are too few, to get the program running for a noticeable time. I created a text-file with 5 million lines. This solution (started with java without parameters like -server or -XX-options) needed around 11 seconds on my box. The same with wc -l
(UNIX command-line-tool to count lines), 11 seconds. The solution reading every single character and looking for '\n' needed 104 seconds, 9-10 times as much.
Yes, this is an old question. But it's misleading, as this was the first result in my search, and both the answers aren't correct anymore.
You can change your Github account name at any time.
To do this, click your profile picture > Settings
> Account Settings
> Change Username
.
Links to your repositories will redirect to the new URLs, but they should be updated on other sites because someone who chooses your abandoned username can override the links. Links to your profile page will be 404'd.
For more information, see the official help page.
And furthermore, if you want to change your username to something else, but that specific username is being taken up by someone else who has been completely inactive for the entire time their account has existed, you can report their account for name squatting.
When I got this error:
#145 - Table '.\engine\phpbb3_posts' is marked as crashed and should be repaired
I ran this command in PhpMyAdmin to fix it:
REPAIR TABLE phpbb3_posts;
This should work with any kind of database.
Looking again at your question, I think I see what's wrong with your conf file. You set:
fullresolution=1366x768 windowresolution=1366x768
That's why you're getting the letterboxing (black on either side). You've essentially told Dosbox that your screen is the same size as your window, but your screen is actually bigger, 1600x900 (or higher) per the Googled specs for that computer. So the 'difference' shows up in black. So you either should change fullresolution to your actual screen resolution, or revert to fullresolution=original default, and only specify the window resolution.
So now I wonder if you really want fullscreen, though your question asks about only a window. For you are getting a window, but you sized it short of your screen, hence the two black stripes (letterboxing). If you really want fullscreen, then you need to specify the actual resolution of your screen. 1366x768 is not big enough.
The next issue is, what's the resolution of the program itself? It won't go past its own resolution. So if the program/game is (natively) say 1280x720 (HD), then your window resolution setting shouldn't be bigger than that (remember, it's fixed not dynamic when you use AxB as windowresolution).
Example: DOS Lotus 123 will only extend eight columns and 20 rows. The bigger the Dosbox, the bigger the text, but not more columns and rows. So setting a higher windowresolution for that, only results in bigger text, not more columns and rows. After that you'll have letterboxing.
Hope this helps you better.
The range of floating point numbers usually exceeds the range of integers. By returning a floating point value, the functions can return a sensible value for input values that lie outside the representable range of integers.
Consider: If floor()
returned an integer, what should floor(1.0e30)
return?
Now, while Python's integers are now arbitrary precision, it wasn't always this way. The standard library functions are thin wrappers around the equivalent C library functions.
The page How to Write Doc Coments for the Javadoc Tool contains a good number of good examples. One section is called Examples of Doc Comments and contains quite a few usages.
Also, the Javadoc FAQ contains some more examples to illustrate the answers.
As brb tea says, depends on the database implementation and the algorithm they use: MVCC or Two Phase Locking.
CUBRID (open source RDBMS) explains the idea of this two algorithms:
- Two-phase locking (2PL)
The first one is when the T2 transaction tries to change the A record, it knows that the T1 transaction has already changed the A record and waits until the T1 transaction is completed because the T2 transaction cannot know whether the T1 transaction will be committed or rolled back. This method is called Two-phase locking (2PL).
- Multi-version concurrency control (MVCC)
The other one is to allow each of them, T1 and T2 transactions, to have their own changed versions. Even when the T1 transaction has changed the A record from 1 to 2, the T1 transaction leaves the original value 1 as it is and writes that the T1 transaction version of the A record is 2. Then, the following T2 transaction changes the A record from 1 to 3, not from 2 to 4, and writes that the T2 transaction version of the A record is 3.
When the T1 transaction is rolled back, it does not matter if the 2, the T1 transaction version, is not applied to the A record. After that, if the T2 transaction is committed, the 3, the T2 transaction version, will be applied to the A record. If the T1 transaction is committed prior to the T2 transaction, the A record is changed to 2, and then to 3 at the time of committing the T2 transaction. The final database status is identical to the status of executing each transaction independently, without any impact on other transactions. Therefore, it satisfies the ACID property. This method is called Multi-version concurrency control (MVCC).
The MVCC allows concurrent modifications at the cost of increased overhead in memory (because it has to maintain different versions of the same data) and computation (in REPETEABLE_READ level you can't loose updates so it must check the versions of the data, like Hiberate does with Optimistick Locking).
In 2PL Transaction isolation levels control the following:
Whether locks are taken when data is read, and what type of locks are requested.
How long the read locks are held.
Whether a read operation referencing rows modified by another transaction:
Block until the exclusive lock on the row is freed.
Retrieve the committed version of the row that existed at the time the statement or transaction started.
Read the uncommitted data modification.
Choosing a transaction isolation level does not affect the locks that are acquired to protect data modifications. A transaction always gets an exclusive lock on any data it modifies and holds that lock until the transaction completes, regardless of the isolation level set for that transaction. For read operations, transaction isolation levels primarily define the level of protection from the effects of modifications made by other transactions.
A lower isolation level increases the ability of many users to access data at the same time, but increases the number of concurrency effects, such as dirty reads or lost updates, that users might encounter.
Concrete examples of the relation between locks and isolation levels in SQL Server (use 2PL except on READ_COMMITED with READ_COMMITTED_SNAPSHOT=ON)
READ_UNCOMMITED: do not issue shared locks to prevent other transactions from modifying data read by the current transaction. READ UNCOMMITTED transactions are also not blocked by exclusive locks that would prevent the current transaction from reading rows that have been modified but not committed by other transactions. [...]
READ_COMMITED:
REPETEABLE_READ: Shared locks are placed on all data read by each statement in the transaction and are held until the transaction completes.
SERIALIZABLE: Range locks are placed in the range of key values that match the search conditions of each statement executed in a transaction. [...] The range locks are held until the transaction completes.
Give name and values to those submit buttons like:
<td>
<input type="submit" name='mybutton' class="noborder" id="save" value="save" alt="Save" tabindex="4" />
</td>
<td>
<input type="submit" name='mybutton' class="noborder" id="publish" value="publish" alt="Publish" tabindex="5" />
</td>
and then in your php script you could check
if($_POST['mybutton'] == 'save')
{
///do save processing
}
elseif($_POST['mybutton'] == 'publish')
{
///do publish processing here
}
If you don't need to use JQuery, as I don't. I've had problems with the cross browser func of .click()
. So I use:
eval(document.getElementById('someid').href)
I use seperate custom functions which gets all URL Parameters and URL parts . For URL parameters, (which is the final part of an URI String, http://domain.tld/urlpart/?x=a&y=b
function getUrlVars() {
var vars = {};
var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m,key,value) {
vars[key] = value;
});
return vars;
}
The above function will return an array consisting of url variables.
For URL Parts or functions, (which is http://domain.tld/urlpart/?x=a&y=b I use a simple uri split,
function getUrlParams() {
var vars = {};
var parts = window.location.href.split('/' );
return parts;
}
You can even combine them both to be able to use with a single call in a page or in javascript.
array = ["value1", "value2", "value3"]
it's not so much jquery as javascript
For the case that you wish to revert a recently installed package that made several changes to dependencies (such as tensorflow), you can "roll back" to an earlier installation state via the following method:
conda list --revisions
conda install --revision [revision number]
The first command shows previous installation revisions (with dependencies) and the second reverts to whichever revision number
you specify.
Note that if you wish to (re)install a later revision, you may have to sequentially reinstall all intermediate versions. If you had been at revision 23, reinstalled revision 20 and wish to return, you may have to run each:
conda install --revision 21
conda install --revision 22
conda install --revision 23
You can use string.scan(your_regex).flatten
. If your regex contains groups, it will return in a single plain array.
string = "A 54mpl3 string w1th 7 numbers scatter3r ar0und"
your_regex = /(\d+)[m-t]/
string.scan(your_regex).flatten
=> ["54", "1", "3"]
Regex can be a named group as well.
string = 'group_photo.jpg'
regex = /\A(?<name>.*)\.(?<ext>.*)\z/
string.scan(regex).flatten
You can also use gsub
, it's just one more way if you want MatchData.
str.gsub(/\d/).map{ Regexp.last_match }
After using the recommended way of implementing expandable/collapsible items residing in a RecyclerView
on RecyclerView expand/collapse items answered by HeisenBerg, I've seen some noticeable artifacts whenever the RecyclerView
is refreshed by invoking TransitionManager.beginDelayedTransition(ViewGroup)
and subsequently notifyDatasetChanged()
.
His original answer:
final boolean isExpanded = position==mExpandedPosition;
holder.details.setVisibility(isExpanded?View.VISIBLE:View.GONE);
holder.itemView.setActivated(isExpanded);
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mExpandedPosition = isExpanded ? -1 : position;
TransitionManager.beginDelayedTransition(recyclerView);
notifyDataSetChanged();
}
});
Modified:
final boolean isExpanded = position == mExpandedPosition;
holder.details.setVisibility(isExpanded ? View.VISIBLE : View.GONE);
holder.view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mExpandedHolder != null) {
mExpandedHolder.details.setVisibility(View.GONE);
notifyItemChanged(mExpandedPosition);
}
mExpandedPosition = isExpanded ? -1 : holder.getAdapterPosition();
mExpandedHolder = isExpanded ? null : holder;
notifyItemChanged(holder.getAdapterPosition());
}
}
int
that keeps track of expanded itemViewHolder
used during item collapseNotice that the method TransitionManager.beginDelayedTransition(ViewGroup)
and notifyDataSetChanged()
are replaced by notifyItemChanged(int)
to target specific item and some little tweaks.
After the modification, the previous unwanted effects should be gone. However, this may not be the perfect solution. It only did what I wanted, eliminating the eyesores.
::EDIT::
For clarification, both mExpandedPosition
and mExpandedHolder
are globals.
I use .bat file with this commad to do that.
for /f %%F in ('dir /b /ad /s ^| findstr /iles "Bin"') do RMDIR /s /q "%%F"
for /f %%F in ('dir /b /ad /s ^| findstr /iles "Obj"') do RMDIR /s /q "%%F"
<div style="width:100%;">
<div style="margin-left:45px;">
<asp:TextBox ID="txtTitle" runat="server" Width="100%"></asp:TextBox><br />
</div>
</div>
You can use the generally available pr
command (man page here). For example, to convert tabs to four spaces, do this:
pr -t -e=4 file > file.expanded
-t
suppresses headers-e=num
expands tabs to num
spacesTo convert all files in a directory tree recursively, while skipping binary files:
#!/bin/bash
num=4
shopt -s globstar nullglob
for f in **/*; do
[[ -f "$f" ]] || continue # skip if not a regular file
! grep -qI "$f" && continue # skip binary files
pr -t -e=$num "$f" > "$f.expanded.$$" && mv "$f.expanded.$$" "$f"
done
The logic for skipping binary files is from this post.
NOTE:
I know this isn't in the Django tutorial, and shame on them, but it's better to set up relative paths for your path variables. You can set it up like so:
import os.path
PROJECT_PATH = os.path.realpath(os.path.dirname(__file__))
...
MEDIA_ROOT = os.path.join(PROJECT_PATH, 'media/')
TEMPLATE_DIRS = [
os.path.join(PROJECT_PATH, 'templates/'),
]
This way you can move your Django project and your path roots will update automatically. This is useful when you're setting up your production server.
Second, there's something suspect to your TEMPLATE_DIRS path. It should point to the root of your template directory. Also, it should also end in a trailing /
.
I'm just going to guess here that the .../admin/
directory is not your template root. If you still want to write absolute paths you should take out the reference to the admin template directory.
TEMPLATE_DIRS = [
'C:/django-project/myapp/mytemplates/',
]
With that being said, the template loaders by default should be set up to recursively traverse into your app directories to locate template files.
TEMPLATE_LOADERS = [
'django.template.loaders.filesystem.load_template_source',
'django.template.loaders.app_directories.load_template_source',
# 'django.template.loaders.eggs.load_template_source',
]
You shouldn't need to copy over the admin templates unless if you specifically want to overwrite something.
You will have to run a syncdb if you haven't run it yet. You'll also need to statically server your media files if you're hosting django through runserver.
Neither of them worked for me for some reason.
I figured it out that for some reason python doesn't read %s. So use (?) instead of %S in you SQL Code.
And finally this worked for me.
cursor.execute ("update tablename set columnName = (?) where ID = (?) ",("test4","4"))
connect.commit()
You can use sp_executesql with output parameter.
declare @S nvarchar(max) = 'select @x = 1'
declare @xx int
set @xx = 0
exec sp_executesql @S, N'@x int out', @xx out
select @xx
Result:
(No column name)
1
Edit
In my sample @S
is instead of your @template
. As you can see I assign a value to @x
so you need to modify @template
so it internally assigns the comma separated string to the variable you define in your second argument to sp_executesql
. In my sample N'@x int out'
. You probably want a varchar(max)
output parameter. Something like N'@Result varchar(max) out'
Here is another example building a comma separated string from master..spt_values
declare @template nvarchar(max)
set @template =
'select @Result += cast(number as varchar(10))+'',''
from master..spt_values
where type = ''P''
'
declare @CommaString varchar(max)
set @CommaString = ''
exec sp_executesql @template, N'@Result varchar(max) out', @CommaString out
select @CommaString
You can try by sending XHR Requests a few times, and then if you get errors it means there's a problem with the internet connection.
Edit: I found this JQuery script which is doing what you are asking for, I didn't test it though.
<activity
...
android:windowSoftInputMode="stateVisible" >
</activity>
or
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
Simple class to calculate rolling average and also rolling standard deviation:
#define _stdev(cnt, sum, ssq) sqrt((((double)(cnt))*ssq-pow((double)(sum),2)) / ((double)(cnt)*((double)(cnt)-1)))
class moving_average {
private:
boost::circular_buffer<int> *q;
double sum;
double ssq;
public:
moving_average(int n) {
sum=0;
ssq=0;
q = new boost::circular_buffer<int>(n);
}
~moving_average() {
delete q;
}
void push(double v) {
if (q->size() == q->capacity()) {
double t=q->front();
sum-=t;
ssq-=t*t;
q->pop_front();
}
q->push_back(v);
sum+=v;
ssq+=v*v;
}
double size() {
return q->size();
}
double mean() {
return sum/size();
}
double stdev() {
return _stdev(size(), sum, ssq);
}
};
I believe sideshowbarker 's answer here has all the info you need to fix this. If your problem is just No 'Access-Control-Allow-Origin' header is present on the response you're getting, you can set up a CORS proxy to get around this. Way more info on it in the linked answer
I have seen the same error message after upgrading to git1.8.5.2:
Simply make a search for all msys-1.0.dll
on your C:\
drive, and make the one used by Git comes first.
For instance, in my case I simply changed the order of:
C:\prgs\Gow\Gow-0.7.0\bin\msys-1.0.dll
C:\prgs\git\PortableGit-1.8.5.2-preview20131230\bin\msys-1.0.dll
By making the Git path C:\prgs\git\PortableGit-1.8.5.2-preview20131230\bin\
come first in my %PATH%
, the error message disappeared.
No need to reboot or to even change the DOS session.
Once the %PATH%
is updated in that DOS session, the git commands just work.
Note that carmbrester and Sixto Saez both report below (in the comments) having to reboot in order to fix the issue.
Note: First, also removing any msys-1.0.dll
, like one in %LOCALAPPDATA%
In General, A frame Work is real or Conceptual structure of intended to serve as a support or Guide for the building some thing that expands the structure into something useful...
You can probably make a clever use of the DebugBreak() function.
You can generate the WS proxy classes using WSCF (Web Services Contract First) tool from thinktecture.com. So essentially, YOU CAN create webservices from wsdl's. Creating the asmx's, maybe not, but that's the easy bit isn't it? This tool integrates brilliantly into VS2005-8 (new version for 2010/WCF called WSCF-blue). I've used it loads and always found it to be really good.
You have to use Appcompat
library for that. Which is used like below:
dashboard.xml
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/action_search"
android:icon="@android:drawable/ic_menu_search"
app:showAsAction="always|collapseActionView"
app:actionViewClass="androidx.appcompat.widget.SearchView"
android:title="Search"/>
</menu>
Activity file (in Java):
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater menuInflater = getMenuInflater();
menuInflater.inflate(R.menu.dashboard, menu);
MenuItem searchItem = menu.findItem(R.id.action_search);
SearchManager searchManager = (SearchManager) MainActivity.this.getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = null;
if (searchItem != null) {
searchView = (SearchView) searchItem.getActionView();
}
if (searchView != null) {
searchView.setSearchableInfo(searchManager.getSearchableInfo(MainActivity.this.getComponentName()));
}
return super.onCreateOptionsMenu(menu);
}
Activity file (in Kotlin):
override fun onCreateOptionsMenu(menu: Menu?): Boolean {
menuInflater.inflate(R.menu.menu_search, menu)
val searchItem: MenuItem? = menu?.findItem(R.id.action_search)
val searchManager = getSystemService(Context.SEARCH_SERVICE) as SearchManager
val searchView: SearchView? = searchItem?.actionView as SearchView
searchView?.setSearchableInfo(searchManager.getSearchableInfo(componentName))
return super.onCreateOptionsMenu(menu)
}
manifest file:
<meta-data
android:name="android.app.default_searchable"
android:value="com.apkgetter.SearchResultsActivity" />
<activity
android:name="com.apkgetter.SearchResultsActivity"
android:label="@string/app_name"
android:launchMode="singleTop" >
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW" />
</intent-filter>
<meta-data
android:name="android.app.searchable"
android:resource="@xml/searchable" />
</activity>
searchable xml file:
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:hint="@string/search_hint"
android:label="@string/app_name" />
And at last, your SearchResultsActivity
class code. for showing result of your search.
given :
array=("something to search for" "a string" "test2000")
elem="a string"
then a simple check of :
if c=$'\x1E' && p="${c}${elem} ${c}" && [[ ! "${array[@]/#/${c}} ${c}" =~ $p ]]; then
echo "$elem exists in array"
fi
where
c is element separator
p is regex pattern
(The reason for assigning p separately, rather than using the expression directly inside [[ ]] is to maintain compatibility for bash 4)
It's not that different in bash
.
workdone=0
while : ; do
...
if [ "$workdone" -ne 0 ]; then
break
fi
done
:
is the no-op command; its exit status is always 0, so the loop runs until workdone
is given a non-zero value.
There are many ways you could set and test the value of workdone
in order to exit the loop; the one I show above should work in any POSIX-compatible shell.
Add bottom:100%
to your #menu:hover ul li:hover ul
rule
#menu:hover ul li:hover ul {
position: absolute;
margin-top: 1px;
font: 10px;
bottom: 100%; /* added this attribute */
}
Or better yet to prevent the submenus from having the same effect, just add this rule
#menu>ul>li:hover>ul {
bottom:100%;
}
source: http://jsfiddle.net/W5FWW/4/
And to get back the border you can add the following attribute
#menu>ul>li:hover>ul {
bottom:100%;
border-bottom: 1px solid transparent
}
You just need to use single quotes:
$ echo "$TEST"
test
$ echo '$TEST'
$TEST
Inside single quotes special characters are not special any more, they are just normal characters.
Transparency can be coded in the color argument as well. It is just two more hex numbers coding a transparency between 0 (fully transparent) and 255 (fully visible). I once wrote this function to add transparency to a color vector, maybe it is usefull here?
addTrans <- function(color,trans)
{
# This function adds transparancy to a color.
# Define transparancy with an integer between 0 and 255
# 0 being fully transparant and 255 being fully visable
# Works with either color and trans a vector of equal length,
# or one of the two of length 1.
if (length(color)!=length(trans)&!any(c(length(color),length(trans))==1)) stop("Vector lengths not correct")
if (length(color)==1 & length(trans)>1) color <- rep(color,length(trans))
if (length(trans)==1 & length(color)>1) trans <- rep(trans,length(color))
num2hex <- function(x)
{
hex <- unlist(strsplit("0123456789ABCDEF",split=""))
return(paste(hex[(x-x%%16)/16+1],hex[x%%16+1],sep=""))
}
rgb <- rbind(col2rgb(color),trans)
res <- paste("#",apply(apply(rgb,2,num2hex),2,paste,collapse=""),sep="")
return(res)
}
Some examples:
cols <- sample(c("red","green","pink"),100,TRUE)
# Fully visable:
plot(rnorm(100),rnorm(100),col=cols,pch=16,cex=4)
# Somewhat transparant:
plot(rnorm(100),rnorm(100),col=addTrans(cols,200),pch=16,cex=4)
# Very transparant:
plot(rnorm(100),rnorm(100),col=addTrans(cols,100),pch=16,cex=4)
If you are using Spring 3.0, an easy way to avoid the org.springframework.web.client.HttpClientErrorException: 415 Unsupported Media Type exception, is to include the jackson jar files in your classpath, and use mvc:annotation-driven
config element. As specified here.
I was pulling my hair out trying to figure out why the mvc-ajax app worked without any special config for the MappingJacksonHttpMessageConverter
. If you read the article I linked above closely:
Underneath the covers, Spring MVC delegates to a HttpMessageConverter to perform the serialization. In this case, Spring MVC invokes a MappingJacksonHttpMessageConverter built on the Jackson JSON processor. This implementation is enabled automatically when you use the mvc:annotation-driven configuration element with Jackson present in your classpath.
Update to @Alex Martelli's answer to fix a bug in his code to make the solution more robust:
def update_dict(d, u):
for k, v in u.items():
if isinstance(v, collections.Mapping):
default = v.copy()
default.clear()
r = update_dict(d.get(k, default), v)
d[k] = r
else:
d[k] = v
return d
The key is that we often want to create the same type at recursion, so here we use v.copy().clear()
but not {}
. And this is especially useful if the dict
here is of type collections.defaultdict
which can have different kinds of default_factory
s.
Also notice that the u.iteritems()
has been changed to u.items()
in Python3
.
Time flies, the way I do without enabling less secured app
is making a password for specific app
Step one: enable 2FA
Step two: create an app-specific password
After this, put the sixteen digits password to the settings and reload the app, enjoy!
config.action_mailer.smtp_settings = {
...
password: 'HERE', # <---
authentication: 'plain',
enable_starttls_auto: true
}
An update for this. For React Hooks use const [name, setName] = useState(" ")
Just to go a little bit further in the matter, you can also set a bitmap directly, like this:
ImageView imageView = new ImageView(this);
Bitmap bImage = BitmapFactory.decodeResource(this.getResources(), R.drawable.my_image);
imageView.setImageBitmap(bImage);
Of course, this technique is only useful if you need to change the image.
Microsoft SQL Server Database Publishing Wizard will generate all the necessary insert statements, and optionally schema information as well if you need that:
http://www.microsoft.com/downloads/details.aspx?familyid=56E5B1C5-BF17-42E0-A410-371A838E570A
Your elements need to have a position
attribute. (e.g. absolute
, relative
, fixed
) or z-index
won't work.
Here's a complete solution for those using Imagick in PHP:
$im = new \Imagick($filePath);
$im->setImageCompression(\Imagick::COMPRESSION_JPEG);
$im->setImageCompressionQuality(85);
$im->stripImage();
$im->setInterlaceScheme(\Imagick::INTERLACE_PLANE);
// Try between 0 or 5 radius. If you find radius of 5
// produces too blurry pictures decrease to 0 until you
// find a good balance between size and quality.
$im->gaussianBlurImage(0.05, 5);
// Include this part if you also want to specify a maximum size for the images
$size = $im->getImageGeometry();
$maxWidth = 1920;
$maxHeight = 1080;
// ----------
// | |
// ----------
if($size['width'] >= $size['height']){
if($size['width'] > $maxWidth){
$im->resizeImage($maxWidth, 0, \Imagick::FILTER_LANCZOS, 1);
}
}
// ------
// | |
// | |
// | |
// | |
// ------
else{
if($size['height'] > $maxHeight){
$im->resizeImage(0, $maxHeight, \Imagick::FILTER_LANCZOS, 1);
}
}
I have something to share, although the major points are already covered.
Stack
Heap
Interesting note:
If you want to enable multi-dex in your project then just go to gradle.builder
and add this in your dependencie
dependencies {
compile 'com.android.support:multidex:1.0.0'}
then you have to add
defaultConfig {
...
minSdkVersion 14
targetSdkVersion 21
...
// Enabling multidex support.
multiDexEnabled true}
Then open a class and extand it to Application If your app uses extends the Application class, you can override the oncrete() method and call
MultiDex.install(this)
to enable multidex.
and finally add into your manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.multidex.myapplication">
<application
...
android:name="android.support.multidex.MultiDexApplication">
...
</application>
</manifest>
Use the built-in isinstance()
function.
import pandas as pd
def f(var):
if isinstance(var, pd.DataFrame):
print("do stuff")
According to the error message, you declared myLoc
as a pointer to an NSInteger (NSInteger *myLoc
) rather than an actual NSInteger (NSInteger myLoc
). It needs to be the latter.
If your column will only have one value something like pd.series.tolist()
will produce an error. To guarantee that it will work for all cases, use the code below:
(
df
.filter(['column_name'])
.values
.reshape(1, -1)
.ravel()
.tolist()
)
You can flow this code:
Scanner obj= new Scanner(System.in);
String s = obj.nextLine();
Assuming your DataSource is of type DataTable, you can just do this:
myGridView.DataSource as DataTable
you can accept a 2D list in python this way ...
simply
arr2d = [[j for j in input().strip()] for i in range(n)]
# n is no of rows
for characters
n = int(input().strip())
m = int(input().strip())
a = [[0]*n for _ in range(m)]
for i in range(n):
a[i] = list(input().strip())
print(a)
or
n = int(input().strip())
n = int(input().strip())
a = []
for i in range(n):
a[i].append(list(input().strip()))
print(a)
for numbers
n = int(input().strip())
m = int(input().strip())
a = [[0]*n for _ in range(m)]
for i in range(n):
a[i] = [int(j) for j in input().strip().split(" ")]
print(a)
where n is no of elements in columns while m is no of elements in a row.
In pythonic way, this will create a list of list
You actually need 3 meta
tags to support Android, iPhone and Windows Phone
<!-- Chrome, Firefox OS and Opera -->
<meta name="theme-color" content="#4285f4">
<!-- Windows Phone -->
<meta name="msapplication-navbutton-color" content="#4285f4">
<!-- iOS Safari -->
<meta name="apple-mobile-web-app-status-bar-style" content="#4285f4">
use this code in teminal :
python -m pip install --upgrade PAKAGE_NAME #instead of PAKAGE_NAME
for example i want update pip pakage :
python -m pip install --upgrade pip
more example :
python -m pip install --upgrade selenium
python -m pip install --upgrade requests
...
From the "View" menu, select "Workspaces". You'll see all of the workspaces you've created. Select the workspaces you want to delete and click "Edit" -> "Delete Workspace", or right-click and select "Delete Workspace". If the workspace is "locked" to prevent changes, you'll get an error message.
To unlock the workspace, click "Edit" (or right-click and click "Edit Workspace") to pull up the workspace editor, uncheck the "locked" checkbox, and save your changes. You can delete the workspace once it's unlocked.
In my experience, the workspace will continue to be shown in the drop-down list until you click on it, at which point p4v will figure out you've deleted it and remove it from the list.
Simple and clean:
$('#select_all').click(function() {_x000D_
var c = this.checked;_x000D_
$(':checkbox').prop('checked', c);_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<form>_x000D_
<table>_x000D_
<tr>_x000D_
<td><input type="checkbox" id="select_all" /></td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td><input type="checkbox" name="select[]" /></td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td><input type="checkbox" name="select[]" /></td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td><input type="checkbox" name="select[]" /></td>_x000D_
</tr>_x000D_
</table>_x000D_
</form>
_x000D_
If you never plan to delete elements from the list (since this requires changing the index of all elements after the deleted element), then you can use ConcurrentSkipListMap<Integer, T>
in place of ArrayList<T>
, e.g.
NavigableMap<Integer, T> map = new ConcurrentSkipListMap<>();
This will allow you to add items to the end of the "list" as follows, as long as there is only one writer thread (otherwise there is a race condition between map.size()
and map.put()
):
// Add item to end of the "list":
map.put(map.size(), item);
You can also obviously modify the value of any item in the "list" (i.e. the map) by simply calling map.put(index, item)
.
The average cost for putting items into the map or retrieving them by index is O(log(n)), and ConcurrentSkipListMap
is lock-free, which makes it significantly better than say Vector
(the old synchronized version of ArrayList
).
You can iterate back and forth through the "list" by using the methods of the NavigableMap
interface.
You could wrap all the above into a class that implements the List
interface, as long as you understand the race condition caveats (or you could synchronize just the writer methods) -- and you would need to throw an unsupported operation exception for the remove
methods. There's quite a bit of boilerplate needed to implement all the required methods, but here's a quick attempt at an implementation.
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.NavigableMap;
import java.util.Objects;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentSkipListMap;
public class ConcurrentAddOnlyList<V> implements List<V> {
private NavigableMap<Integer, V> map = new ConcurrentSkipListMap<>();
@Override
public int size() {
return map.size();
}
@Override
public boolean isEmpty() {
return map.isEmpty();
}
@Override
public boolean contains(Object o) {
return map.values().contains(o);
}
@Override
public Iterator<V> iterator() {
return map.values().iterator();
}
@Override
public Object[] toArray() {
return map.values().toArray();
}
@Override
public <T> T[] toArray(T[] a) {
return map.values().toArray(a);
}
@Override
public V get(int index) {
return map.get(index);
}
@Override
public boolean containsAll(Collection<?> c) {
return map.values().containsAll(c);
}
@Override
public int indexOf(Object o) {
for (Entry<Integer, V> ent : map.entrySet()) {
if (Objects.equals(ent.getValue(), o)) {
return ent.getKey();
}
}
return -1;
}
@Override
public int lastIndexOf(Object o) {
for (Entry<Integer, V> ent : map.descendingMap().entrySet()) {
if (Objects.equals(ent.getValue(), o)) {
return ent.getKey();
}
}
return -1;
}
@Override
public ListIterator<V> listIterator(int index) {
return new ListIterator<V>() {
private int currIdx = 0;
@Override
public boolean hasNext() {
return currIdx < map.size();
}
@Override
public V next() {
if (currIdx >= map.size()) {
throw new IllegalArgumentException(
"next() called at end of list");
}
return map.get(currIdx++);
}
@Override
public boolean hasPrevious() {
return currIdx > 0;
}
@Override
public V previous() {
if (currIdx <= 0) {
throw new IllegalArgumentException(
"previous() called at beginning of list");
}
return map.get(--currIdx);
}
@Override
public int nextIndex() {
return currIdx + 1;
}
@Override
public int previousIndex() {
return currIdx - 1;
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
@Override
public void set(V e) {
// Might change size of map if currIdx == map.size(),
// so need to synchronize
synchronized (map) {
map.put(currIdx, e);
}
}
@Override
public void add(V e) {
synchronized (map) {
// Insertion is not supported except at end of list
if (currIdx < map.size()) {
throw new UnsupportedOperationException();
}
map.put(currIdx++, e);
}
}
};
}
@Override
public ListIterator<V> listIterator() {
return listIterator(0);
}
@Override
public List<V> subList(int fromIndex, int toIndex) {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean add(V e) {
synchronized (map) {
map.put(map.size(), e);
return true;
}
}
@Override
public boolean addAll(Collection<? extends V> c) {
synchronized (map) {
for (V val : c) {
add(val);
}
return true;
}
}
@Override
public V set(int index, V element) {
synchronized (map) {
if (index < 0 || index > map.size()) {
throw new IllegalArgumentException("Index out of range");
}
return map.put(index, element);
}
}
@Override
public void clear() {
synchronized (map) {
map.clear();
}
}
@Override
public synchronized void add(int index, V element) {
synchronized (map) {
if (index < map.size()) {
// Insertion is not supported except at end of list
throw new UnsupportedOperationException();
} else if (index < 0 || index > map.size()) {
throw new IllegalArgumentException("Index out of range");
}
// index == map.size()
add(element);
}
}
@Override
public synchronized boolean addAll(
int index, Collection<? extends V> c) {
synchronized (map) {
if (index < map.size()) {
// Insertion is not supported except at end of list
throw new UnsupportedOperationException();
} else if (index < 0 || index > map.size()) {
throw new IllegalArgumentException("Index out of range");
}
// index == map.size()
for (V val : c) {
add(val);
}
return true;
}
}
@Override
public boolean remove(Object o) {
throw new UnsupportedOperationException();
}
@Override
public V remove(int index) {
throw new UnsupportedOperationException();
}
@Override
public boolean removeAll(Collection<?> c) {
throw new UnsupportedOperationException();
}
@Override
public boolean retainAll(Collection<?> c) {
throw new UnsupportedOperationException();
}
}
Don't forget that even with the writer thread synchronization as shown above, you need to be careful not to run into race conditions that might cause you to drop items, if for example you try to iterate through a list in a reader thread while a writer thread is adding to the end of the list.
You can even use ConcurrentSkipListMap
as a double-ended list, as long as you don't need the key of each item to represent the actual position within the list (i.e. adding to the beginning of the list will assign items negative keys). (The same race condition caveat applies here, i.e. there should be only one writer thread.)
// Add item after last item in the "list":
map.put(map.isEmpty() ? 0 : map.lastKey() + 1, item);
// Add item before first item in the "list":
map.put(map.isEmpty() ? 0 : map.firstKey() - 1, item);
A less elegant solution is taking the log 'manually' from the user data dir:
Set the user data dir to a fixed place:
options = new ChromeOptions();
capabilities = DesiredCapabilities.chrome();
options.addArguments("user-data-dir=/your_path/");
capabilities.setCapability(ChromeOptions.CAPABILITY, options);
Get the text from the log file chrome_debug.log located in the path you've entered above.
I use this method since RemoteWebDriver
had problems getting the console logs remotely. If you run your test locally that can be easy to retrieve.
If its SQL Server you can do it on the column properties within design view
Try this?:
ALTER TABLE dbo.TableName
ADD CONSTRAINT DF_TableName_ColumnName
DEFAULT '01/01/2000' FOR ColumnName
As of Rails 4 you can't generate a migration to add a column to a table with a default value, The following steps add a new column to an existing table with default value true or false.
$ rails generate migration add_columnname_to_tablename columnname:boolean
The above command will add a new column in your table.
class AddColumnnameToTablename < ActiveRecord::Migration
def change
add_column :table_name, :column_name, :boolean, default: false
end
end
$ rake db:migrate
Yes. You can have a span
within a span
. Your problem stems from something else.
VMWare Player can be seen as a free, closed-source competitor to Virtualbox.
Initially VMWare Player (up to version 2.5) was intended to operate on fixed virtual operating systems (e.g. play back pre-created virtual disks).
Many advanced features such as vsphere are probably not required by most users, and VMWare Player will provide the same core technologies and 3D acceleration as the ESX Workstation solution.
From my experience VMWare Player 5 is faster than Virtualbox 4.2 RC3 and has better SMP performance. Both are great however, each with its own unique advantages. Both are somewhat lacking in 2D rendering performance.
See the official FAQ, and a feature comparison table.
Use WITH ORDINALITY
for set-returning functions:
When a function in the
FROM
clause is suffixed byWITH ORDINALITY
, abigint
column is appended to the output which starts from 1 and increments by 1 for each row of the function's output. This is most useful in the case of set returning functions such asunnest()
.
In combination with the LATERAL
feature in pg 9.3+, and according to this thread on pgsql-hackers, the above query can now be written as:
SELECT t.id, a.elem, a.nr
FROM tbl AS t
LEFT JOIN LATERAL unnest(string_to_array(t.elements, ','))
WITH ORDINALITY AS a(elem, nr) ON TRUE;
LEFT JOIN ... ON TRUE
preserves all rows in the left table, even if the table expression to the right returns no rows. If that's of no concern you can use this otherwise equivalent, less verbose form with an implicit CROSS JOIN LATERAL
:
SELECT t.id, a.elem, a.nr
FROM tbl t, unnest(string_to_array(t.elements, ',')) WITH ORDINALITY a(elem, nr);
Or simpler if based off an actual array (arr
being an array column):
SELECT t.id, a.elem, a.nr
FROM tbl t, unnest(t.arr) WITH ORDINALITY a(elem, nr);
Or even, with minimal syntax:
SELECT id, a, ordinality
FROM tbl, unnest(arr) WITH ORDINALITY a;
a
is automatically table and column alias. The default name of the added ordinality column is ordinality
. But it's better (safer, cleaner) to add explicit column aliases and table-qualify columns.
With row_number() OVER (PARTITION BY id ORDER BY elem)
you get numbers according to the sort order, not the ordinal number of the original ordinal position in the string.
You can simply omit ORDER BY
:
SELECT *, row_number() OVER (PARTITION by id) AS nr
FROM (SELECT id, regexp_split_to_table(elements, ',') AS elem FROM tbl) t;
While this normally works and I have never seen it fail in simple queries, PostgreSQL asserts nothing concerning the order of rows without ORDER BY
. It happens to work due to an implementation detail.
To guarantee ordinal numbers of elements in the blank-separated string:
SELECT id, arr[nr] AS elem, nr
FROM (
SELECT *, generate_subscripts(arr, 1) AS nr
FROM (SELECT id, string_to_array(elements, ' ') AS arr FROM tbl) t
) sub;
Or simpler if based off an actual array:
SELECT id, arr[nr] AS elem, nr
FROM (SELECT *, generate_subscripts(arr, 1) AS nr FROM tbl) t;
Related answer on dba.SE:
None of these features are available, yet: RETURNS TABLE
, generate_subscripts()
, unnest()
, array_length()
. But this works:
CREATE FUNCTION f_unnest_ord(anyarray, OUT val anyelement, OUT ordinality integer)
RETURNS SETOF record
LANGUAGE sql IMMUTABLE AS
'SELECT $1[i], i - array_lower($1,1) + 1
FROM generate_series(array_lower($1,1), array_upper($1,1)) i';
Note in particular, that the array index can differ from ordinal positions of elements. Consider this demo with an extended function:
CREATE FUNCTION f_unnest_ord_idx(anyarray, OUT val anyelement, OUT ordinality int, OUT idx int)
RETURNS SETOF record
LANGUAGE sql IMMUTABLE AS
'SELECT $1[i], i - array_lower($1,1) + 1, i
FROM generate_series(array_lower($1,1), array_upper($1,1)) i';
SELECT id, arr, (rec).*
FROM (
SELECT *, f_unnest_ord_idx(arr) AS rec
FROM (VALUES (1, '{a,b,c}'::text[]) -- short for: '[1:3]={a,b,c}'
, (2, '[5:7]={a,b,c}')
, (3, '[-9:-7]={a,b,c}')
) t(id, arr)
) sub;
id | arr | val | ordinality | idx
----+-----------------+-----+------------+-----
1 | {a,b,c} | a | 1 | 1
1 | {a,b,c} | b | 2 | 2
1 | {a,b,c} | c | 3 | 3
2 | [5:7]={a,b,c} | a | 1 | 5
2 | [5:7]={a,b,c} | b | 2 | 6
2 | [5:7]={a,b,c} | c | 3 | 7
3 | [-9:-7]={a,b,c} | a | 1 | -9
3 | [-9:-7]={a,b,c} | b | 2 | -8
3 | [-9:-7]={a,b,c} | c | 3 | -7
Compare:
You can make method which return the datatable of given sql query:
public DataTable GetDataTable()
{
SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["BarManConnectionString"].ConnectionString);
conn.Open();
string query = "SELECT * FROM [EventOne] ";
SqlCommand cmd = new SqlCommand(query, conn);
DataTable t1 = new DataTable();
using (SqlDataAdapter a = new SqlDataAdapter(cmd))
{
a.Fill(t1);
}
return t1;
}
and now can be used like this:
table = GetDataTable();
You don't have any data that you're submitting! Try adding this line to your ajax:
data: $('form').serialize(),
Make sure you change the name to match!
Also your data should be submitted inside of a form submit function.
Your code should look something like this:
<script>_x000D_
$(function () {_x000D_
$('form').on('submit', function (e) {_x000D_
e.preventDefault();_x000D_
$.ajax({_x000D_
type: 'post',_x000D_
url: 'company.php',_x000D_
data: $('form').serialize(),_x000D_
success: function () {_x000D_
alert('form was submitted');_x000D_
}_x000D_
});_x000D_
});_x000D_
});_x000D_
</script>
_x000D_
I really love this excerpt from 10 Things I hate about git (it gives a short explanation for rebase in its second example):
3. Crappy documentation
The man pages are one almighty “f*** you”1. They describe the commands from the perspective of a computer scientist, not a user. Case in point:
git-push – Update remote refs along with associated objects
Here’s a description for humans:
git-push – Upload changes from your local repository into a remote repository
Update, another example: (thanks cgd)
git-rebase – Forward-port local commits to the updated upstream head
Translation:
git-rebase – Sequentially regenerate a series of commits so they can be applied directly to the head node
And then we have
git-merge - Join two or more development histories together
which is a good description.
1. uncensored in the original
As stated by the earlier answer you can get both mysql server and client libs by running
brew install mysql
.
There is also client only installation. To install only client libraries run
brew install mysql-connector-c
In order to run these commands, you need homebrew package manager in your mac. You can install it by running
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Anyone here looking for Knockout JS integration.
Given the following HTML (Standard Bootstrap dropdown button):
<div class="dropdown">
<button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
Select an item
<span class="caret"></span>
</button>
<ul class="dropdown-menu" role="menu">
<li>
<a href="javascript:;" data-bind="click: clickTest">Click 1</a>
</li>
<li>
<a href="javascript:;" data-bind="click: clickTest">Click 2</a>
</li>
<li>
<a href="javascript:;" data-bind="click: clickTest">Click 3</a>
</li>
</ul>
</div>
Use the following JS:
var viewModel = function(){
var self = this;
self.clickTest = function(){
alert("I've been clicked!");
}
};
For those looking to generate dropdown options based on knockout observable array, the code would look something like:
var viewModel = function(){
var self = this;
self.dropdownOptions = ko.observableArray([
{ id: 1, label: "Click 1" },
{ id: 2, label: "Click 2" },
{ id: 3, label: "Click 3" }
])
self.clickTest = function(item){
alert("Item with id:" + item.id + " was clicked!");
}
};
<!-- REST OF DD CODE -->
<ul class="dropdown-menu" role="menu">
<!-- ko foreach: { data: dropdownOptions, as: 'option' } -->
<li>
<a href="javascript:;" data-bind="click: $parent.clickTest, text: option.clickTest"></a>
</li>
<!-- /ko -->
</ul>
<!-- REST OF DD CODE -->
Note, that the observable array item is implicitly passed into the click function handler for use in the view model code.
If using IIS:
If using IIS Express:
Open 'Add/Remove Programs' from the old control panel and run a repair on IIS Express Or you might go Control Panel ->> Programs ->> Programs and Features ->> Turn Windows features on or off ->> Internet Information Services and check the checkbox as shown in the picture below:
For Visual Studio 2015/2017, Right Click on your package.json
and Click on Restore Packages.
This will make sure that the npm from the Visual Studio Tools External Tools is run and the binding will be rebuild based on that.
I'll just post the code to do this using the fluent API mapping.
public class User {
public int UserID { get; set; }
public string Username { get; set; }
public string Password { get; set; }
public ICollection<UserEmail> UserEmails { get; set; }
}
public class Email {
public int EmailID { get; set; }
public string Address { get; set; }
public ICollection<UserEmail> UserEmails { get; set; }
}
public class UserEmail {
public int UserID { get; set; }
public int EmailID { get; set; }
public bool IsPrimary { get; set; }
}
On your DbContext
derived class you could do this:
public class MyContext : DbContext {
protected override void OnModelCreating(DbModelBuilder builder) {
// Primary keys
builder.Entity<User>().HasKey(q => q.UserID);
builder.Entity<Email>().HasKey(q => q.EmailID);
builder.Entity<UserEmail>().HasKey(q =>
new {
q.UserID, q.EmailID
});
// Relationships
builder.Entity<UserEmail>()
.HasRequired(t => t.Email)
.WithMany(t => t.UserEmails)
.HasForeignKey(t => t.EmailID)
builder.Entity<UserEmail>()
.HasRequired(t => t.User)
.WithMany(t => t.UserEmails)
.HasForeignKey(t => t.UserID)
}
}
It has the same effect as the accepted answer, with a different approach, which is no better nor worse.
One way is to leave a raw_input() at the end so the script waits for you to press enter before it terminates.
The advantage of using raw_input() instead of msvcrt.* stuff is that the former is a part of standard Python (i.e. absolutely cross-platform). This also means that the script window will be alive after double-clicking on the script file icon, without the need to do
cmd /K python <script>
There is a javascript version available which manually redirects events from one div to another.
I cleaned it up and made it into a jQuery plugin.
Here's the Github repository: https://github.com/BaronVonSmeaton/jquery.forwardevents
Unfortunately, the purpose I was using it for - overlaying a mask over Google Maps did not capture click and drag events, and the mouse cursor does not change which degrades the user experience enough that I just decided to hide the mask under IE and Opera - the two browsers which dont support pointer events.
One liner is the best :
db.mycollection.find({ 'fieldname' : { $exists: true, $ne: null } });
Here,
mycollection : place your desired collection name
fieldname : place your desired field name
Explaination :
$exists : When is true, $exists matches the documents that contain the field, including documents where the field value is null. If is false, the query returns only the documents that do not contain the field.
$ne selects the documents where the value of the field is not equal to the specified value. This includes documents that do not contain the field.
So in your provided case following query going to return all the documents with imageurl field exists and having not null value:
db.mycollection.find({ 'imageurl' : { $exists: true, $ne: null } });
<input id="new" >
<button onselect="myFunction()">it</button>
<script>
function myFunction() {
document.getElementById("new").value = "a";
}
</script>
Since web search for Oracle case
tops to that link, I add here for case statement, though not answer to the question asked about case expression:
CASE
WHEN grade = 'A' THEN dbms_output.put_line('Excellent');
WHEN grade = 'B' THEN dbms_output.put_line('Very Good');
WHEN grade = 'C' THEN dbms_output.put_line('Good');
WHEN grade = 'D' THEN dbms_output.put_line('Fair');
WHEN grade = 'F' THEN dbms_output.put_line('Poor');
ELSE dbms_output.put_line('No such grade');
END CASE;
or other variant:
CASE grade
WHEN 'A' THEN dbms_output.put_line('Excellent');
WHEN 'B' THEN dbms_output.put_line('Very Good');
WHEN 'C' THEN dbms_output.put_line('Good');
WHEN 'D' THEN dbms_output.put_line('Fair');
WHEN 'F' THEN dbms_output.put_line('Poor');
ELSE dbms_output.put_line('No such grade');
END CASE;
Per Oracle docs: https://docs.oracle.com/cd/B10501_01/appdev.920/a96624/04_struc.htm
To make this work on Ubuntu Linux:
I installed the Ubuntu package ruby-json:
apt-get install ruby-json
I wrote the script in ${HOME}/rubybin/jsonDEMO
$HOME/.bashrc
included:
${HOME}/rubybin:${PATH}
(On this occasion I also typed the above on the bash command line.)
Then it worked when I entered on the command line:
jsonDemo
DECLARE @dd VARCHAR(200) = 'Net Operating Loss - 2007';
SELECT SUBSTRING(@dd, 1, CHARINDEX('-', @dd) -1) F1,
SUBSTRING(@dd, CHARINDEX('-', @dd) +1, LEN(@dd)) F2
Please people don't give up your old habits just yet. There is a large difference in speed between allocating memory once then working with the entries in that array (as of old), and allocating it many times as an array grows (which is inevitably what the system does under the hood with other suggested methods).
None of this matters of course, until you want to do something cool with larger arrays. Then it does.
Seeing as there still seems to be no option in JS at the moment to set the initial capacity of an array, I use the following...
var newArrayWithSize = function(size) {
this.standard = this.standard||[];
for (var add = size-this.standard.length; add>0; add--) {
this.standard.push(undefined);// or whatever
}
return this.standard.slice(0,size);
}
There are tradeoffs involved:
standard
array does permanently reserve as much space as the largest array you have asked for.But if it fits with what you're doing there can be a payoff. Informal timing puts
for (var n=10000;n>0;n--) {var b = newArrayWithSize(10000);b[0]=0;}
at pretty speedy (about 50ms for the 10000 given that with n=1000000 it took about 5 seconds), and
for (var n=10000;n>0;n--) {
var b = [];for (var add=10000;add>0;add--) {
b.push(undefined);
}
}
at well over a minute (about 90 sec for the 10000 on the same chrome console, or about 2000 times slower). That won't just be the allocation, but also the 10000 pushes, for loop, etc..
this is pretty useful:
https://github.com/JedWatson/classnames
You can do stuff like
classNames('foo', 'bar'); // => 'foo bar'
classNames('foo', { bar: true }); // => 'foo bar'
classNames({ 'foo-bar': true }); // => 'foo-bar'
classNames({ 'foo-bar': false }); // => ''
classNames({ foo: true }, { bar: true }); // => 'foo bar'
classNames({ foo: true, bar: true }); // => 'foo bar'
// lots of arguments of various types
classNames('foo', { bar: true, duck: false }, 'baz', { quux: true }); // => 'foo bar baz quux'
// other falsy values are just ignored
classNames(null, false, 'bar', undefined, 0, 1, { baz: null }, ''); // => 'bar 1'
or use it like this
var btnClass = classNames('btn', this.props.className, {
'btn-pressed': this.state.isPressed,
'btn-over': !this.state.isPressed && this.state.isHovered
});
ES6 solution using recursion. Different than all other solutions
const range = (n, A = []) => (n === 1) ? [n, ...A] : range(n - 1, [n, ...A]);
console.log(range(5));
I found something interesting in SQL server when checking if inner joins are faster than left joins.
If you dont include the items of the left joined table, in the select statement, the left join will be faster than the same query with inner join.
If you do include the left joined table in the select statement, the inner join with the same query was equal or faster than the left join.
If you use Kotlin and coroutines, you can simply do
GlobalScope.launch {
delay(3000) // In ms
//Code after sleep
}
And if you need to update UI
GlobalScope.launch {
delay(3000)
GlobalScope.launch(Dispatchers.Main) {
//Action on UI thread
}
}
If you are okay with just having IE open the JSON into a notepad, you can change your system's default program for .json files to Notepad.
To do this, create or find a .json file, right mouse click, and select "Open With" or "Choose Default Program."
This might come in handy if you by chance want to use Internet Explorer but your IT company wont let you edit your registry. Otherwise, I recommend the above answers.
No way what is suggested here works - the error "bitmap xxx not defined" is ever present. And yes, I set the correct path to it.
What it did work is this:
imgicon = PhotoImage(file=os.path.join(sp,'myicon.gif'))
root.tk.call('wm', 'iconphoto', root._w, imgicon)
where sp
is the script path, and root
the Tk root window.
It's hard to understand how it does work (I shamelessly copied it from fedoraforums) but it works
I tried
kill -9 $(ps -A -ostat,ppid | grep -e '[zZ]'| awk '{ print $2 }')
and it works for me.
Don't pass db models directly to your views. You're lucky enough to be using MVC, so encapsulate using view models.
Create a view model class like this:
public class EmployeeAddViewModel
{
public Employee employee { get; set; }
public Dictionary<int, string> staffTypes { get; set; }
// really? a 1-to-many for genders
public Dictionary<int, string> genderTypes { get; set; }
public EmployeeAddViewModel() { }
public EmployeeAddViewModel(int id)
{
employee = someEntityContext.Employees
.Where(e => e.ID == id).SingleOrDefault();
// instantiate your dictionaries
foreach(var staffType in someEntityContext.StaffTypes)
{
staffTypes.Add(staffType.ID, staffType.Type);
}
// repeat similar loop for gender types
}
}
Controller:
[HttpGet]
public ActionResult Add()
{
return View(new EmployeeAddViewModel());
}
[HttpPost]
public ActionResult Add(EmployeeAddViewModel vm)
{
if(ModelState.IsValid)
{
Employee.Add(vm.Employee);
return View("Index"); // or wherever you go after successful add
}
return View(vm);
}
Then, finally in your view (which you can use Visual Studio to scaffold it first), change the inherited type to ShadowVenue.Models.EmployeeAddViewModel. Also, where the drop down lists go, use:
@Html.DropDownListFor(model => model.employee.staffTypeID,
new SelectList(model.staffTypes, "ID", "Type"))
and similarly for the gender dropdown
@Html.DropDownListFor(model => model.employee.genderID,
new SelectList(model.genderTypes, "ID", "Gender"))
Update per comments
For gender, you could also do this if you can be without the genderTypes in the above suggested view model (though, on second thought, maybe I'd generate this server side in the view model as IEnumerable). So, in place of new SelectList...
below, you would use your IEnumerable.
@Html.DropDownListFor(model => model.employee.genderID,
new SelectList(new SelectList()
{
new { ID = 1, Gender = "Male" },
new { ID = 2, Gender = "Female" }
}, "ID", "Gender"))
Finally, another option is a Lookup table. Basically, you keep key-value pairs associated with a Lookup type. One example of a type may be gender, while another may be State, etc. I like to structure mine like this:
ID | LookupType | LookupKey | LookupValue | LookupDescription | Active
1 | Gender | 1 | Male | male gender | 1
2 | State | 50 | Hawaii | 50th state | 1
3 | Gender | 2 | Female | female gender | 1
4 | State | 49 | Alaska | 49th state | 1
5 | OrderType | 1 | Web | online order | 1
I like to use these tables when a set of data doesn't change very often, but still needs to be enumerated from time to time.
Hope this helps!
The problem is that the user in the database is an "orphan". This means that there is no login id or password associated with the user. This is true even if there is a login id that matches the user, since there is a GUID (called a SID in Microsoft-speak) that has to match as well.
This used to be a pain to fix, but currently (SQL Server 2000, SP3) there is a stored procedure that does the heavy lifting.
All of these instructions should be done as a database admin, with the restored database selected.
First, make sure that this is the problem. This will lists the orphaned users:
EXEC sp_change_users_login 'Report'
If you already have a login id and password for this user, fix it by doing:
EXEC sp_change_users_login 'Auto_Fix', 'user'
If you want to create a new login id and password for this user, fix it by doing:
EXEC sp_change_users_login 'Auto_Fix', 'user', 'login', 'password'
this text was obtained at http://www.fileformat.info/tip/microsoft/sql_orphan_user.htm in Dez-13-2017
int i,largest = 0;
Scanner scan = new Scanner(System.in);
System.out.println("Enter the number of numbers in the list");
i = scan.nextInt();
int arr[] = new int[i];
System.out.println("Enter the list of numbers:");
for(int j=0;j<i;j++){
arr[j] = scan.nextInt();
}
The above code works well. I have taken the input of the number of elements in the list and initialized the array accordingly.
Run this command after opening cmd as administrator
net start mssqlserver /T902
This command is called trace flag 902. It is used to bypass script upgrade mode. Every time when you try to start your sql service it also looks for script upgrades. and when the script upgrade fail your service unable to start. So, Whenever we have such upgrade script failure issue and SQL is not getting started, we need to use trace flag 902 to start SQL.
I hope this will help you..
Alternatively, in plain text: (also available as a a screenshot)
Bracket Matching -. .- Line Numbering
Smart Indent -. | | .- UML Editing / Viewing
Source Control Integration -. | | | | .- Code Folding
Error Markup -. | | | | | | .- Code Templates
Integrated Python Debugging -. | | | | | | | | .- Unit Testing
Multi-Language Support -. | | | | | | | | | | .- GUI Designer (Qt, Eric, etc)
Auto Code Completion -. | | | | | | | | | | | | .- Integrated DB Support
Commercial/Free -. | | | | | | | | | | | | | | .- Refactoring
Cross Platform -. | | | | | | | | | | | | | | | |
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
Atom |Y |F |Y |Y*|Y |Y |Y |Y |Y |Y | |Y |Y | | | | |*many plugins
Editra |Y |F |Y |Y | | |Y |Y |Y |Y | |Y | | | | | |
Emacs |Y |F |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y | | | |
Eric Ide |Y |F |Y | |Y |Y | |Y | |Y | |Y | |Y | | | |
Geany |Y |F |Y*|Y | | | |Y |Y |Y | |Y | | | | | |*very limited
Gedit |Y |F |Y¹|Y | | | |Y |Y |Y | | |Y²| | | | |¹with plugin; ²sort of
Idle |Y |F |Y | |Y | | |Y |Y | | | | | | | | |
IntelliJ |Y |CF|Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |
JEdit |Y |F | |Y | | | | |Y |Y | |Y | | | | | |
KDevelop |Y |F |Y*|Y | | |Y |Y |Y |Y | |Y | | | | | |*no type inference
Komodo |Y |CF|Y |Y |Y |Y |Y |Y |Y |Y | |Y |Y |Y | |Y | |
NetBeans* |Y |F |Y |Y |Y | |Y |Y |Y |Y |Y |Y |Y |Y | | |Y |*pre-v7.0
Notepad++ |W |F |Y |Y | |Y*|Y*|Y*|Y |Y | |Y |Y*| | | | |*with plugin
Pfaide |W |C |Y |Y | | | |Y |Y |Y | |Y |Y | | | | |
PIDA |LW|F |Y |Y | | | |Y |Y |Y | |Y | | | | | |VIM based
PTVS |W |F |Y |Y |Y |Y |Y |Y |Y |Y | |Y | | |Y*| |Y |*WPF bsed
PyCharm |Y |CF|Y |Y*|Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |*JavaScript
PyDev (Eclipse) |Y |F |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y | | | |
PyScripter |W |F |Y | |Y |Y | |Y |Y |Y | |Y |Y |Y | | | |
PythonWin |W |F |Y | |Y | | |Y |Y | | |Y | | | | | |
SciTE |Y |F¹| |Y | |Y | |Y |Y |Y | |Y |Y | | | | |¹Mac version is
ScriptDev |W |C |Y |Y |Y |Y | |Y |Y |Y | |Y |Y | | | | | commercial
Spyder |Y |F |Y | |Y |Y | |Y |Y |Y | | | | | | | |
Sublime Text |Y |CF|Y |Y | |Y |Y |Y |Y |Y | |Y |Y |Y*| | | |extensible w/Python,
TextMate |M |F | |Y | | |Y |Y |Y |Y | |Y |Y | | | | | *PythonTestRunner
UliPad |Y |F |Y |Y |Y | | |Y |Y | | | |Y |Y | | | |
Vim |Y |F |Y |Y |Y |Y |Y |Y |Y |Y | |Y |Y |Y | | | |
Visual Studio |W |CF|Y |Y |Y |Y |Y |Y |Y |Y |? |Y |? |? |Y |? |Y |
Visual Studio Code|Y |F |Y |Y |Y |Y |Y |Y |Y |Y |? |Y |? |? |? |? |Y |uses plugins
WingIde |Y |C |Y |Y*|Y |Y |Y |Y |Y |Y | |Y |Y |Y | | | |*support for C
Zeus |W |C | | | | |Y |Y |Y |Y | |Y |Y | | | | |
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
Cross Platform -' | | | | | | | | | | | | | | | |
Commercial/Free -' | | | | | | | | | | | | | | '- Refactoring
Auto Code Completion -' | | | | | | | | | | | | '- Integrated DB Support
Multi-Language Support -' | | | | | | | | | | '- GUI Designer (Qt, Eric, etc)
Integrated Python Debugging -' | | | | | | | | '- Unit Testing
Error Markup -' | | | | | | '- Code Templates
Source Control Integration -' | | | | '- Code Folding
Smart Indent -' | | '- UML Editing / Viewing
Bracket Matching -' '- Line Numbering
Acronyms used:
L - Linux
W - Windows
M - Mac
C - Commercial
F - Free
CF - Commercial with Free limited edition
? - To be confirmed
I don't mention basics like syntax highlighting as I expect these by default.
This is a just dry list reflecting your feedback and comments, I am not advocating any of these tools. I will keep updating this list as you keep posting your answers.
PS. Can you help me to add features of the above editors to the list (like auto-complete, debugging, etc.)?
We have a comprehensive wiki page for this question https://wiki.python.org/moin/IntegratedDevelopmentEnvironments
I think the problem is with the user having deny privileges. This error comes when the user which you have created does not have the sufficient privileges to access your tables in the database. Do grant the privilege to the user in order to get what you want.
GRANT the user specific permissions such as SELECT, INSERT, UPDATE and DELETE on tables in that database.
Another option is to use Sort-Object
(whose alias is sort
, but only on Windows) with the -Unique
switch, which combines sorting with removal of duplicates:
$a | sort -unique
To test that all words start with an upper case use this:
print all(word[0].isupper() for word in words)
As of version 2.4, you can create a text index on the field(s) to search and use the $text operator for querying.
First, create the index:
db.users.createIndex( { "username": "text" } )
Then, to search:
db.users.find( { $text: { $search: "son" } } )
Benchmarks (~150K documents):
Notes:
db.collection.createIndex( { "$**": "text" } )
.These posts may be in the wrong order! This is #2 in a series of 3 posts. Sorry.
I've "taken a few liberties" with Lie Ryan's code, implementing a linked list so individual elements of his vector can be accessed via a linked list. This allows access, but admittedly it is time-consuming to access individual elements due to search overhead, i.e. walking down the list until you find the right element. I'll cure this by maintaining an address vector containing subscripts 0 through whatever paired with memory addresses. This is still not as efficient as a plain-and-simple array would be, but at least you don't have to "walk the list" searching for the proper item.
// Based on code from https://stackoverflow.com/questions/3536153/c-dynamically-growing-array
typedef struct STRUCT_SS_VECTOR
{ size_t size; // # of vector elements
void** items; // makes up one vector element's component contents
int subscript; // this element's subscript nmbr, 0 thru whatever
struct STRUCT_SS_VECTOR* this_element; // linked list via this ptr
struct STRUCT_SS_VECTOR* next_element; // and next ptr
} ss_vector;
ss_vector* vector; // ptr to vector of components
ss_vector* ss_init_vector(size_t item_size) // item_size is size of one array member
{ vector= malloc(sizeof(ss_vector));
vector->this_element = vector;
vector->size = 0; // initialize count of vector component elements
vector->items = calloc(1, item_size); // allocate & zero out memory for one linked list element
vector->subscript=0;
vector->next_element=NULL;
// If there's an array of element addresses/subscripts, install it now.
return vector->this_element;
}
ss_vector* ss_vector_append(ss_vector* vec_element, int i)
// ^--ptr to this element ^--element nmbr
{ ss_vector* local_vec_element=0;
// If there is already a next element, recurse to end-of-linked-list
if(vec_element->next_element!=(size_t)0)
{ local_vec_element= ss_vector_append(vec_element->next_element,i); // recurse to end of list
return local_vec_element;
}
// vec_element is NULL, so make a new element and add at end of list
local_vec_element= calloc(1,sizeof(ss_vector)); // memory for one component
local_vec_element->this_element=local_vec_element; // save the address
local_vec_element->next_element=0;
vec_element->next_element=local_vec_element->this_element;
local_vec_element->subscript=i; //vec_element->size;
local_vec_element->size=i; // increment # of vector components
// If there's an array of element addresses/subscripts, update it now.
return local_vec_element;
}
void ss_vector_free_one_element(int i,gboolean Update_subscripts)
{ // Walk the entire linked list to the specified element, patch up
// the element ptrs before/next, then free its contents, then free it.
// Walk the rest of the list, updating subscripts, if requested.
// If there's an array of element addresses/subscripts, shift it along the way.
ss_vector* vec_element;
struct STRUCT_SS_VECTOR* this_one;
struct STRUCT_SS_VECTOR* next_one;
vec_element=vector;
while((vec_element->this_element->subscript!=i)&&(vec_element->next_element!=(size_t) 0)) // skip
{ this_one=vec_element->this_element; // trailing ptr
next_one=vec_element->next_element; // will become current ptr
vec_element=next_one;
}
// now at either target element or end-of-list
if(vec_element->this_element->subscript!=i)
{ printf("vector element not found\n");return;}
// free this one
this_one->next_element=next_one->next_element;// previous element points to element after current one
printf("freeing element[%i] at %lu",next_one->subscript,(size_t)next_one);
printf(" between %lu and %lu\n",(size_t)this_one,(size_t)next_one->next_element);
vec_element=next_one->next_element;
free(next_one); // free the current element
// renumber if requested
if(Update_subscripts)
{ i=0;
vec_element=vector;
while(vec_element!=(size_t) 0)
{ vec_element->subscript=i;
i++;
vec_element=vec_element->next_element;
}
}
// If there's an array of element addresses/subscripts, update it now.
/* // Check: temporarily show the new list
vec_element=vector;
while(vec_element!=(size_t) 0)
{ printf(" remaining element[%i] at %lu\n",vec_element->subscript,(size_t)vec_element->this_element);
vec_element=vec_element->next_element;
} */
return;
} // void ss_vector_free_one_element()
void ss_vector_insert_one_element(ss_vector* vec_element,int place)
{ // Walk the entire linked list to specified element "place", patch up
// the element ptrs before/next, then calloc an element and store its contents at "place".
// Increment all the following subscripts.
// If there's an array of element addresses/subscripts, make a bigger one,
// copy the old one, then shift appropriate members.
// ***Not yet implemented***
} // void ss_vector_insert_one_element()
void ss_vector_free_all_elements(void)
{ // Start at "vector".Walk the entire linked list, free each element's contents,
// free that element, then move to the next one.
// If there's an array of element addresses/subscripts, free it.
ss_vector* vec_element;
struct STRUCT_SS_VECTOR* next_one;
vec_element=vector;
while(vec_element->next_element!=(size_t) 0)
{ next_one=vec_element->next_element;
// free(vec_element->items) // don't forget to free these
free(vec_element->this_element);
vec_element=next_one;
next_one=vec_element->this_element;
}
// get rid of the last one.
// free(vec_element->items)
free(vec_element);
vector=NULL;
// If there's an array of element addresses/subscripts, free it now.
printf("\nall vector elements & contents freed\n");
} // void ss_vector_free_all_elements()
// defining some sort of struct, can be anything really
typedef struct APPLE_STRUCT
{ int id; // one of the data in the component
int other_id; // etc
struct APPLE_STRUCT* next_element;
} apple; // description of component
apple* init_apple(int id) // make a single component
{ apple* a; // ptr to component
a = malloc(sizeof(apple)); // memory for one component
a->id = id; // populate with data
a->other_id=id+10;
a->next_element=NULL;
// don't mess with aa->last_rec here
return a; // return pointer to component
};
int return_id_value(int i,apple* aa) // given ptr to component, return single data item
{ printf("was inserted as apple[%i].id = %i ",i,aa->id);
return(aa->id);
}
ss_vector* return_address_given_subscript(ss_vector* vec_element,int i)
// always make the first call to this subroutine with global vbl "vector"
{ ss_vector* local_vec_element=0;
// If there is a next element, recurse toward end-of-linked-list
if(vec_element->next_element!=(size_t)0)
{ if((vec_element->this_element->subscript==i))
{ return vec_element->this_element;}
local_vec_element= return_address_given_subscript(vec_element->next_element,i); // recurse to end of list
return local_vec_element;
}
else
{ if((vec_element->this_element->subscript==i)) // last element
{ return vec_element->this_element;}
// otherwise, none match
printf("reached end of list without match\n");
return (size_t) 0;
}
} // return_address_given_subscript()
int Test(void) // was "main" in the original example
{ ss_vector* local_vector;
local_vector=ss_init_vector(sizeof(apple)); // element "0"
for (int i = 1; i < 10; i++) // inserting items "1" thru whatever
{ local_vector=ss_vector_append(vector,i);}
// test search function
printf("\n NEXT, test search for address given subscript\n");
local_vector=return_address_given_subscript(vector,5);
printf("finished return_address_given_subscript(5) with vector at %lu\n",(size_t)local_vector);
local_vector=return_address_given_subscript(vector,0);
printf("finished return_address_given_subscript(0) with vector at %lu\n",(size_t)local_vector);
local_vector=return_address_given_subscript(vector,9);
printf("finished return_address_given_subscript(9) with vector at %lu\n",(size_t)local_vector);
// test single-element removal
printf("\nNEXT, test single element removal\n");
ss_vector_free_one_element(5,FALSE); // without renumbering subscripts
ss_vector_free_one_element(3,TRUE);// WITH renumbering subscripts
// ---end of program---
// don't forget to free everything
ss_vector_free_all_elements();
return 0;
}
There is a solution to use Web Workers (as mentioned before), because they run in separate process and are not slowed down
I've written a tiny script that can be used without changes to your code - it simply overrides functions setTimeout, clearTimeout, setInterval, clearInterval.
Just include it before all your code.
Use:
<!-- For Google -->
<meta name="description" content="" />
<meta name="keywords" content="" />
<meta name="author" content="" />
<meta name="copyright" content="" />
<meta name="application-name" content="" />
<!-- For Facebook -->
<meta property="og:title" content="" />
<meta property="og:type" content="article" />
<meta property="og:image" content="" />
<meta property="og:url" content="" />
<meta property="og:description" content="" />
<!-- For Twitter -->
<meta name="twitter:card" content="summary" />
<meta name="twitter:title" content="" />
<meta name="twitter:description" content="" />
<meta name="twitter:image" content="" />
Fill the content =" ... " according to the content of your page.
For more information, visit 18 Meta Tags Every Webpage Should Have in 2013.
You can retrieve the date by using the getDate function:
$("#datepicker").datepicker( 'getDate' );
The value is returned as a JavaScript Date object.
If you want to use this value when the user selects a date, you can use the onSelect event:
$("#datepicker").datepicker({
onSelect: function(dateText, inst) {
var dateAsString = dateText; //the first parameter of this function
var dateAsObject = $(this).datepicker( 'getDate' ); //the getDate method
}
});
The first parameter is in this case the selected Date as String. Use parseDate to convert it to a JS Date Object.
See http://docs.jquery.com/UI/Datepicker for the full jQuery UI DatePicker reference.
Can't you use the classical 2>
redirection operator.
(Get-PSSessionConfiguration -Name "MyShellUri" -ErrorAction SilentlyContinue) 2> $NULL
if(!$?){
'foo'
}
I don't like errors so I avoid them at all costs.
To set the disabled
to false using the name
property of the input:
document.myForm.myInputName.disabled = false;
If there is an interface anywhere in the ThreadProvider hierarchy try putting the name of the Interface as the type of your service provider, eg. if you have say this structure:
public class ThreadProvider implements CustomInterface{
...
}
Then in your controller try this:
@Controller
public class ChiusuraController {
@Autowired
private CustomInterface chiusuraProvider;
}
The reason why this is happening is, in your first case when you DID NOT have ChiusuraProvider
extend ThreadProvider
Spring probably was underlying creating a CGLIB based proxy for you(to handle the @Transaction).
When you DID extend from ThreadProvider
assuming that ThreadProvider extends some interface, Spring in that case creates a Java Dynamic Proxy based Proxy, which would appear to be an implementation of that interface instead of being of ChisuraProvider
type.
If you absolutely need to use ChisuraProvider
you can try AspectJ as an alternative or force CGLIB based proxy in the case with ThreadProvider also this way:
<aop:aspectj-autoproxy proxy-target-class="true"/>
Here is some more reference on this from the Spring Reference site: http://static.springsource.org/spring/docs/3.1.x/spring-framework-reference/html/classic-aop-spring.html#classic-aop-pfb
Let's say those radio buttons are inside a div
that has the id radioButtons
and that the radio buttons have the same name (for example commonName
) then:
$('#radioButtons').on('change', 'input[name=commonName]:radio', function (e) {
console.log('You have changed the selected radio button!');
});
Thumbs up first before use codes please!!! Create an image that fully cover the whole tab bar item for each item. This is needed to use the image you created as a tab bar item button. Be sure to make the height/width ratio be the same of each tab bar item too. Then:
UITabBarController *tabBarController = (UITabBarController *)self;
UITabBar *tabBar = tabBarController.tabBar;
UITabBarItem *tabBarItem1 = [tabBar.items objectAtIndex:0];
UITabBarItem *tabBarItem2 = [tabBar.items objectAtIndex:1];
UITabBarItem *tabBarItem3 = [tabBar.items objectAtIndex:2];
UITabBarItem *tabBarItem4 = [tabBar.items objectAtIndex:3];
int x,y;
x = tabBar.frame.size.width/4 + 4; //when doing division, it may be rounded so that you need to add 1 to each item;
y = tabBar.frame.size.height + 10; //the height return always shorter, this is compensated by added by 10; you can change the value if u like.
//because the whole tab bar item will be replaced by an image, u dont need title
tabBarItem1.title = @"";
tabBarItem2.title = @"";
tabBarItem3.title = @"";
tabBarItem4.title = @"";
[tabBarItem1 setFinishedSelectedImage:[self imageWithImage:[UIImage imageNamed:@"item1-select.png"] scaledToSize:CGSizeMake(x, y)] withFinishedUnselectedImage:[self imageWithImage:[UIImage imageNamed:@"item1-deselect.png"] scaledToSize:CGSizeMake(x, y)]];//do the same thing for the other 3 bar item
Programmatically you can use:
/* Here you get int representation of an HTML color resources */
int yourColorWhenEnabled = ContextCompat.getColor(getContext(), R.color.your_color_enabled);
int yourColorWhenDisabled = ContextCompat.getColor(getContext(), R.color.your_color_disabled);
/* Here you get matrix of states, I suppose it is a matrix because using a matrix you can set the same color (you have an array of colors) for different states in the same array */
int[][] states = new int[][]{new int[]{android.R.attr.state_enabled}, new int[]{-android.R.attr.state_enabled}};
/* You pass a ColorStateList instance to "setDefaultHintTextColor" method, remember that you have a matrix for the states of the view and an array for the colors. So the color in position "colors[0x0]" will be used for every states inside the array in the same position inside the matrix "states", so in the array "states[0x0]". So you have "colors[pos] -> states[pos]", or "colors[pos] -> color used for every states inside the array of view states -> states[pos] */
myTextInputLayout.setDefaultHintTextColor(new ColorStateList(states, new int[]{yourColorWhenEnabled, yourColorWhenDisabled})
Explanation:
Get int color value from a color resource (a way to present rgb colors used by android). I wrote ColorEnabled, but really it should be, for this answer, ColorHintExpanded & ColorViewCollapsed. Anyway this is the color you will see when the hint of a view "TextInputLayout" is on Expanded or Collapsed state; you will set it by using next array on function "setDefaultHintTextColor" of the view. Reference: Reference for TextInputLayout - search in this page the method "setDefaultHintTextColor" for more info
Looking to docs above you can see that the functions set the colors for Expanded & Collapsed hint by using a ColorStateList.
To create the ColorStateList I first created a matrix with the states I want, in my case state_enabled & state_disabled (whose are, in TextInputLayout, equals to Hint Expanded and Hint Collapsed [I don't remember in which order lol, anyway I found it just doing a test]). Then I pass to the constructor of the ColorStateList the arrays with int values of color resources, these colors have a correspondences with the states matrix (every element in colors array correspond to the respective array in states matrix at same position). So the first element of the colors array will be used as color for every state in the first array of the states matrix (in our case the array has only 1 element: enabled state = hint expanded state for TextInputLayut). Last things states have positive / negative values, and you have only the positive values, so the state "disabled" in android attrs is "-android.state.enabled", the state "not focused" is "-android.state.focused" ecc.. ecc..
Hope this is helpful. Bye have a nice coding (:
This looks correct. I guess you defined your function either with a different name or in a context which isn't visible to the button. Please add some code
One thing that is really important for this question (and the answers) is the following: What the hell is functional programming, and what are the most important properties of it. I'll try to give my view of it:
Functional programming is a lot like writing math on a whiteboard. When you write equations on a whiteboard, you do not think about an execution order. There is (typically) no mutation. You don't come back the day after and look at it, and when you make the calculations again, you get a different result (or you may, if you've had some fresh coffee :)). Basically, what is on the board is there, and the answer was already there when you started writing things down, you just haven't realized what it is yet.
Functional programming is a lot like that; you don't change things, you just evaluate the equation (or in this case, "program") and figure out what the answer is. The program is still there, unmodified. The same with the data.
I would rank the following as the most important features of functional programming: a) referential transparency - if you evaluate the same statement at some other time and place, but with the same variable values, it will still mean the same. b) no side effect - no matter how long you stare at the whiteboard, the equation another guy is looking at at another whiteboard won't accidentally change. c) functions are values too. which can be passed around and applied with, or to, other variables. d) function composition, you can do h=g·f and thus define a new function h(..) which is equivalent to calling g(f(..)).
This list is in my prioritized order, so referential transparency is the most important, followed by no side effects.
Now, if you go through python and check how well the language and libraries supports, and guarantees, these aspects - then you are well on the way to answer your own question.
You could do this with the following list comprehension:
[mylist[i:] + [newelement] + mylist[:i] for i in xrange(len(mylist),-1,-1)]
With your example:
>>> mylist=['A','B']
>>> newelement='X'
>>> [mylist[i:] + [newelement] + mylist[:i] for i in xrange(len(mylist),-1,-1)]
[['X', 'A', 'B'], ['B', 'X', 'A'], ['A', 'B', 'X']]
refer to image below
To install apk manually: copy your apk to to sdk/platform-tools folder and run following command in the same folder
adb install apklocation.apk
Using ping in C# is achieved by using the method Ping.Send(System.Net.IPAddress)
, which runs a ping request to the provided (valid) IP address or URL and gets a response which is called an Internet Control Message Protocol (ICMP) Packet. The packet contains a header of 20 bytes which contains the response data from the server which received the ping request. The .Net framework System.Net.NetworkInformation
namespace contains a class called PingReply
that has properties designed to translate the ICMP
response and deliver useful information about the pinged server such as:
The following is a simple example using WinForms
to demonstrate how ping works in c#. By providing a valid IP address in textBox1
and clicking button1
, we are creating an instance of the Ping
class, a local variable PingReply
, and a string to store the IP or URL address. We assign PingReply
to the ping Send
method, then we inspect if the request was successful by comparing the status of the reply to the property IPAddress.Success
status. Finally, we extract from PingReply
the information we need to display for the user, which is described above.
using System;
using System.Net.NetworkInformation;
using System.Windows.Forms;
namespace PingTest1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Ping p = new Ping();
PingReply r;
string s;
s = textBox1.Text;
r = p.Send(s);
if (r.Status == IPStatus.Success)
{
lblResult.Text = "Ping to " + s.ToString() + "[" + r.Address.ToString() + "]" + " Successful"
+ " Response delay = " + r.RoundtripTime.ToString() + " ms" + "\n";
}
}
private void textBox1_Validated(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(textBox1.Text) || textBox1.Text == "")
{
MessageBox.Show("Please use valid IP or web address!!");
}
}
}
}
I think that once you've imported it, the behaviour is the same (in the place your variable will be used outside source file).
The only difference would be if you try to reassign it before the end of this very file.
You can use the following open method to check if a file exists + readable:
file = open(inputFile, 'r')
file.close()
NSAttributedStringKey.foregroundColor
for example if you want to change font in NavBar:
self.navigationController?.navigationBar.titleTextAttributes = [ NSAttributedStringKey.font: UIFont.systemFont(ofSize: 22), NSAttributedStringKey.foregroundColor: UIColor.white]
please check if code below would work for you; it iterates through cells of the datagris's first column and checks if cell content equals to the textbox.text value and selects the row.
for (int i = 0; i < dataGrid.Items.Count; i++)
{
DataGridRow row = (DataGridRow)dataGrid.ItemContainerGenerator.ContainerFromIndex(i);
TextBlock cellContent = dataGrid.Columns[0].GetCellContent(row) as TextBlock;
if (cellContent != null && cellContent.Text.Equals(textBox1.Text))
{
object item = dataGrid.Items[i];
dataGrid.SelectedItem = item;
dataGrid.ScrollIntoView(item);
row.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next));
break;
}
}
hope this helps, regards
var swap = function () {
var divs = document.getElementsByTagName('div');
var div1 = divs[0];
var div2 = divs[1];
var div3 = divs[2];
div3.parentNode.insertBefore(div1, div3);
div1.parentNode.insertBefore(div3, div2);
};
This function may seem strange, but it heavily relies on standards in order to function properly. In fact, it may seem to function better than the jQuery version that tvanfosson posted which seems to do the swap only twice.
What standards peculiarities does it rely on?
insertBefore Inserts the node newChild before the existing child node refChild. If refChild is null, insert newChild at the end of the list of children. If newChild is a DocumentFragment object, all of its children are inserted, in the same order, before refChild. If the newChild is already in the tree, it is first removed.
What is your PHP version? Extension "Mysql" was deprecated in PHP 5.5.0. Use extension Mysqli (like mysqli_query).
First off target refers to the BlockID found in either HTML code or chromes developer tools that you are trying to link to. Each code is different and you will need to do some digging to find the ID you are trying to reference. It should look something like div class="page-container drawer-page-content" id"PageContainer"
Note that this is the format for the whole referenced section, not an individual text or image. To do that you would need to find the same piece of code but relating to your target block. For example dv id="your-block-id"
Anyways I was just reading over this thread and an idea came to my mind, if you are a Shopify user and want to do this it is pretty much the same thing as stated.
But instead of
> http://url.to.site/index.html#target
You would put
> http://storedomain.com/target
For example, I am setting up a disclaimer page with links leading to a newsletter signup and shopping blocks on my home page so I insert https://mystore-classifier.com/#shopify-section-1528945200235
for my hyperlink.
Please note that the -classifier is for my internal use and doesn't apply to you. This is just so I can keep track of my stores.
If you want to link to something other than your homepage you would put
> http://mystore-classifier.com/pagename/#BlockID
I hope someone found this useful, if there is something wrong with my explanation please let me know as I am not an HTML programmer my language is C#!
Spend some time to make it working for me.
Requirement:
single or comma separated list of e-mails with domains ending [email protected] or [email protected]
Controller:
$scope.email = {
EMAIL_FORMAT: /^\w+([\.-]?\w+)*@(list.)?gmail.com+((\s*)+,(\s*)+\w+([\.-]?\w+)*@(list.)?gmail.com)*$/,
EMAIL_FORMAT_HELP: "format as '[email protected]' or comma separated '[email protected], [email protected]'"
};
HTML:
<ng-form name="emailModal">
<div class="form-group row mb-3">
<label for="to" class="col-sm-2 text-right col-form-label">
<span class="form-required">*</span>
To
</label>
<div class="col-sm-9">
<input class="form-control" id="to"
name="To"
ng-required="true"
ng-pattern="email.EMAIL_FORMAT"
placeholder="{{email.EMAIL_FORMAT_HELP}}"
ng-model="mail.to"/>
<small class="text-muted" ng-show="emailModal.To.$error.pattern">wrong</small>
</div>
</div>
</ng-form>
I found good online regex testing tool. Covered my regex with tests:
Go to the folder where Python is installed, e.g., in my case (Mac OS) it is installed in the Applications folder with the folder name 'Python 3.6'. Now double click on 'Install Certificates.command'. You will no longer face this error.
For those not running a mac, or having a different setup and can't find this file, the file merely runs:
pip install --upgrade certifi
Hope that helps someone :)
try
var lst= (from char c in source select c.ToString()).ToList();
To install OpenCV in Anaconda, start up the Anaconda command prompt and install OpenCV with
conda install -c https://conda.anaconda.org/menpo opencv3
Test that it works in your Anaconda Spyder or IPython console with
import cv2
You can also check the installed version using:
cv2.__version__
For INNER
joins, no, the order doesn't matter. The queries will return same results, as long as you change your selects from SELECT *
to SELECT a.*, b.*, c.*
.
For (LEFT
, RIGHT
or FULL
) OUTER
joins, yes, the order matters - and (updated) things are much more complicated.
First, outer joins are not commutative, so a LEFT JOIN b
is not the same as b LEFT JOIN a
Outer joins are not associative either, so in your examples which involve both (commutativity and associativity) properties:
a LEFT JOIN b
ON b.ab_id = a.ab_id
LEFT JOIN c
ON c.ac_id = a.ac_id
is equivalent to:
a LEFT JOIN c
ON c.ac_id = a.ac_id
LEFT JOIN b
ON b.ab_id = a.ab_id
but:
a LEFT JOIN b
ON b.ab_id = a.ab_id
LEFT JOIN c
ON c.ac_id = a.ac_id
AND c.bc_id = b.bc_id
is not equivalent to:
a LEFT JOIN c
ON c.ac_id = a.ac_id
LEFT JOIN b
ON b.ab_id = a.ab_id
AND b.bc_id = c.bc_id
Another (hopefully simpler) associativity example. Think of this as (a LEFT JOIN b) LEFT JOIN c
:
a LEFT JOIN b
ON b.ab_id = a.ab_id -- AB condition
LEFT JOIN c
ON c.bc_id = b.bc_id -- BC condition
This is equivalent to a LEFT JOIN (b LEFT JOIN c)
:
a LEFT JOIN
b LEFT JOIN c
ON c.bc_id = b.bc_id -- BC condition
ON b.ab_id = a.ab_id -- AB condition
only because we have "nice" ON
conditions. Both ON b.ab_id = a.ab_id
and c.bc_id = b.bc_id
are equality checks and do not involve NULL
comparisons.
You can even have conditions with other operators or more complex ones like: ON a.x <= b.x
or ON a.x = 7
or ON a.x LIKE b.x
or ON (a.x, a.y) = (b.x, b.y)
and the two queries would still be equivalent.
If however, any of these involved IS NULL
or a function that is related to nulls like COALESCE()
, for example if the condition was b.ab_id IS NULL
, then the two queries would not be equivalent.
Very frustrating that Angular still doesn't seem to include a good solution for this. I have raised a github issue here: https://github.com/angular/angular/issues/31843
In the meantime, this is my workaround. It builds on some of the other solutions suggested above, but I think it's a little more robust. It involves wrapping the Router service in a "ReloadRouter
", which takes care of the reload functionality and also adds a RELOAD_PLACEHOLDER
to the core router configuration. This is used for the interim navigation and avoids triggering any other routes (or guards).
Note: Only use the ReloadRouter
in those cases when you want the reload functionality. Use the normal Router
otherwise.
import { Injectable } from '@angular/core';
import { NavigationExtras, Router } from '@angular/router';
@Injectable({
providedIn: 'root'
})
export class ReloadRouter {
constructor(public readonly router: Router) {
router.config.unshift({ path: 'RELOAD_PLACEHOLDER' });
}
public navigate(commands: any[], extras?: NavigationExtras): Promise<boolean> {
return this.router
.navigateByUrl('/RELOAD_PLACEHOLDER', {skipLocationChange: true})
.then(() => this.router.navigate(commands, extras));
}
}
Port 465: IANA has reassigned a new service to this port, and it should no longer be used for SMTP communications.
However, because it was once recognized by IANA as valid, there may be legacy systems that are only capable of using this connection method. Typically, you will use this port only if your application demands it. A quick Google search, and you'll find many consumer ISP articles that suggest port 465 as the recommended setup. Hopefully this ends soon! It is not RFC compliant.
Port 587: This is the default mail submission port. When a mail client or server is submitting an email to be routed by a proper mail server, it should always use this port.
Everyone should consider using this port as default, unless you're explicitly blocked by your upstream network or hosting provider. This port, coupled with TLS encryption, will ensure that email is submitted securely and following the guidelines set out by the IETF.
Port 25: This port continues to be used primarily for SMTP relaying. SMTP relaying is the transmittal of email from email server to email server.
In most cases, modern SMTP clients (Outlook, Mail, Thunderbird, etc) shouldn't use this port. It is traditionally blocked, by residential ISPs and Cloud Hosting Providers, to curb the amount of spam that is relayed from compromised computers or servers. Unless you're specifically managing a mail server, you should have no traffic traversing this port on your computer or server.
Just try adjusting ( decrease ) your allotted RAM for the virtual machine in Motherboard in settings. The amount of RAM free in your system at that time might be less than the amount you have allotted for the virtual machine. This worked for me.
I would like to re-structure the statement that you mentioned which is:
This means that the state as consumed by your target component can have a wildly different structure from the state as it is stored on your store
You can say that the state consumed by your target component has a small portion of the state that is stored on the redux store. In other words, the state consumed by your component would be the sub-set of the state of the redux store.
As far as understanding the connect() method is concerned, it's fairly simple! connect() method has the power to add new props to your component and even override existing props. It is through this connect method that we can access the state of the redux store as well which is thrown to us by the Provider. A combination of which works in your favor and you get to add the state of your redux store to the props of your component.
Above is some theory and I would suggest you look at this video once to understand the syntax better.
jQuery offers the .hide() method for this purpose. Simply select the element of your choice and call this method afterward. For example:
$('#comanda').hide();
One can also determine how fast the transition runs by providing a duration parameter in miliseconds or string (possible values being 'fast', and 'slow'):
$('#comanda').hide('fast');
In case you want to do something just after the element hid, you must provide a callback as a parameter too:
$('#comanda').hide('fast', function() {
alert('It is hidden now!');
});
If you are inside a .then() block and you want to execute a settimeout()
.then(() => {
console.log('wait for 10 seconds . . . . ');
return new Promise(function(resolve, reject) {
setTimeout(() => {
console.log('10 seconds Timer expired!!!');
resolve();
}, 10000)
});
})
.then(() => {
console.log('promise resolved!!!');
})
output will as shown below
wait for 10 seconds . . . .
10 seconds Timer expired!!!
promise resolved!!!
Happy Coding!
It's very unfortunate that you see dynamic allocation so often. That just shows how many bad C++ programmers there are.
In a sense, you have two questions bundled up into one. The first is when should we use dynamic allocation (using new
)? The second is when should we use pointers?
The important take-home message is that you should always use the appropriate tool for the job. In almost all situations, there is something more appropriate and safer than performing manual dynamic allocation and/or using raw pointers.
In your question, you've demonstrated two ways of creating an object. The main difference is the storage duration of the object. When doing Object myObject;
within a block, the object is created with automatic storage duration, which means it will be destroyed automatically when it goes out of scope. When you do new Object()
, the object has dynamic storage duration, which means it stays alive until you explicitly delete
it. You should only use dynamic storage duration when you need it.
That is, you should always prefer creating objects with automatic storage duration when you can.
The main two situations in which you might require dynamic allocation:
When you do absolutely require dynamic allocation, you should encapsulate it in a smart pointer or some other type that performs RAII (like the standard containers). Smart pointers provide ownership semantics of dynamically allocated objects. Take a look at std::unique_ptr
and std::shared_ptr
, for example. If you use them appropriately, you can almost entirely avoid performing your own memory management (see the Rule of Zero).
However, there are other more general uses for raw pointers beyond dynamic allocation, but most have alternatives that you should prefer. As before, always prefer the alternatives unless you really need pointers.
You need reference semantics. Sometimes you want to pass an object using a pointer (regardless of how it was allocated) because you want the function to which you're passing it to have access that that specific object (not a copy of it). However, in most situations, you should prefer reference types to pointers, because this is specifically what they're designed for. Note this is not necessarily about extending the lifetime of the object beyond the current scope, as in situation 1 above. As before, if you're okay with passing a copy of the object, you don't need reference semantics.
You need polymorphism. You can only call functions polymorphically (that is, according to the dynamic type of an object) through a pointer or reference to the object. If that's the behavior you need, then you need to use pointers or references. Again, references should be preferred.
You want to represent that an object is optional by allowing a nullptr
to be passed when the object is being omitted. If it's an argument, you should prefer to use default arguments or function overloads. Otherwise, you should preferably use a type that encapsulates this behavior, such as std::optional
(introduced in C++17 - with earlier C++ standards, use boost::optional
).
You want to decouple compilation units to improve compilation time. The useful property of a pointer is that you only require a forward declaration of the pointed-to type (to actually use the object, you'll need a definition). This allows you to decouple parts of your compilation process, which may significantly improve compilation time. See the Pimpl idiom.
You need to interface with a C library or a C-style library. At this point, you're forced to use raw pointers. The best thing you can do is make sure you only let your raw pointers loose at the last possible moment. You can get a raw pointer from a smart pointer, for example, by using its get
member function. If a library performs some allocation for you which it expects you to deallocate via a handle, you can often wrap the handle up in a smart pointer with a custom deleter that will deallocate the object appropriately.
I'd prefer mapping after making sure the value is available
private String getStringIfObjectIsPresent(Optional<Object> object) {
Object ob = object.orElseThrow(MyCustomException::new);
// do your mapping with ob
String result = your-map-function(ob);
return result;
}
or one liner
private String getStringIfObjectIsPresent(Optional<Object> object) {
return your-map-function(object.orElseThrow(MyCustomException::new));
}
I just had to do this and this was my manual solution:
If you don't know what the PRIMARY field is, look back at your phpmyadmin page, click on the 'Structure' tab and at the bottom of the page under 'Indexes' it will show you which 'Field' has a 'Keyname' value 'PRIMARY'.
Kind of a long way around, but if you don't want to deal with markup and just need to duplicate a single row there you go.
Try jQuery.inArray()
Here is a jsfiddle link using the same code : http://jsfiddle.net/yrshaikh/SUKn2/
The $.inArray() method is similar to JavaScript's native .indexOf() method in that it returns -1 when it doesn't find a match. If the first element within the array matches value, $.inArray() returns 0
Example Code :
<html>
<head>
<style>
div { color:blue; }
span { color:red; }
</style>
<script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
<div>"John" found at <span></span></div>
<div>4 found at <span></span></div>
<div>"Karl" not found, so <span></span></div>
<div>
"Pete" is in the array, but not at or after index 2, so <span></span>
</div>
<script>
var arr = [ 4, "Pete", 8, "John" ];
var $spans = $("span");
$spans.eq(0).text(jQuery.inArray("John", arr));
$spans.eq(1).text(jQuery.inArray(4, arr));
$spans.eq(2).text(jQuery.inArray("Karl", arr));
$spans.eq(3).text(jQuery.inArray("Pete", arr, 2));
</script>
</body>
</html>
Output:
"John" found at 3 4 found at 0 "Karl" not found, so -1 "Pete" is in the array, but not at or after index 2, so -1
I use this code to get the User desktop and Public desktop paths from the registry, tested on Windows XP SP2 pt-PT and Windows 10 b14393 en-US, so it probably works in Vista/7/8 and other languages.
:: get user desktop and public desktop paths
for /f "tokens=* delims= " %%a in ('reg query "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /v Desktop ^|find /i "REG_"') do set "batch_userdesktop=%%a"
for /f "tokens=* delims= " %%a in ('reg query "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /v "Common Desktop" ^|find /i "REG_"') do set "batch_publicdesktop=%%a"
:: remove everything up to and including "_SZ"
set "batch_userdesktop=%batch_userdesktop:*_sz=%"
set "batch_publicdesktop=%batch_publicdesktop:*_sz=%%
:: remove leading spaces and TABs
:loop
if "%batch_userdesktop:~0,1%"==" " set "batch_userdesktop=%batch_userdesktop:~1%" & goto loop
if "%batch_publicdesktop:~0,1%"==" " set "batch_publicdesktop=%batch_publicdesktop:~1%" & goto loop
if "%batch_userdesktop:~0,1%"==" " set "batch_userdesktop=%batch_userdesktop:~1%" & goto loop
if "%batch_publicdesktop:~0,1%"==" " set "batch_publicdesktop=%batch_publicdesktop:~1%" & goto loop
The last two lines include a TAB inside the " ", some text editors add spaces when you press TAB, so make sure you have an actual TAB instead of spaces.
I'm not sure the code requires setlocal enabledelayedexpansion, it's part of my SETVARS.CMD which I call from other batches to set common variables like cpu architecture, account language, windows version and service pack, path to user/public desktop, etc.