You can try this solution, since onkeypress will be attached directly to the DOM element and will prevent users from entering invalid data to begin with.
So no side-effects on react side.
<input type="text" onKeyPress={onNumberOnlyChange}/>
const onNumberOnlyChange = (event: any) => {
const keyCode = event.keyCode || event.which;
const keyValue = String.fromCharCode(keyCode);
const isValid = new RegExp("[0-9]").test(keyValue);
if (!isValid) {
event.preventDefault();
return;
}
};
constructor(private router: Router) {}
navigateOnParent() {
this.router.navigate(['../some-path-on-parent']);
}
The router supports
/xxx
- started on the router of the root componentxxx
- started on the router of the current component../xxx
- started on the parent router of the current componentOpenURI is the best; it's as simple as
require 'open-uri'
response = open('http://example.com').read
ObservableCollection<FacebookUser_WallFeed> result = new ObservableCollection<FacebookUser_WallFeed>(FacebookHelper.facebookWallFeeds);
Depends what it does. If your app takes up too much memory, or makes calls to functions/classes it shouldn't, SpringBoard may terminate it. However, it will most likely be rejected by Apple, as it does not follow their 7 background uses.
The issue here is that input()
returns a string in Python 3.x, so when you do your comparison, you are comparing a string and an integer, which isn't well defined (what if the string is a word, how does one compare a string and a number?) - in this case Python doesn't guess, it throws an error.
To fix this, simply call int()
to convert your string to an integer:
int(input(...))
As a note, if you want to deal with decimal numbers, you will want to use one of float()
or decimal.Decimal()
(depending on your accuracy and speed needs).
Note that the more pythonic way of looping over a series of numbers (as opposed to a while
loop and counting) is to use range()
. For example:
def main():
print("Let me Retire Financial Calculator")
deposit = float(input("Please input annual deposit in dollars: $"))
rate = int(input ("Please input annual rate in percentage: %")) / 100
time = int(input("How many years until retirement?"))
value = 0
for x in range(1, time+1):
value = (value * rate) + deposit
print("The value of your account after" + str(x) + "years will be $" + str(value))
To hide the div
$('.news').hide();
or
$('.news').css('display','none');
and to show the div
:
$('.news').show();
or
$('.news').css('display','block');
Here is my utility class, you may use:
package <removed>;
import com.google.protobuf.Message;
import com.google.protobuf.MessageOrBuilder;
import com.google.protobuf.util.JsonFormat;
/**
* Author @espresso stackoverflow.
* Sample use:
* Model.Person reqObj = ProtoUtil.toProto(reqJson, Model.Person.getDefaultInstance());
Model.Person res = personSvc.update(reqObj);
final String resJson = ProtoUtil.toJson(res);
**/
public class ProtoUtil {
public static <T extends Message> String toJson(T obj){
try{
return JsonFormat.printer().print(obj);
}catch(Exception e){
throw new RuntimeException("Error converting Proto to json", e);
}
}
public static <T extends MessageOrBuilder> T toProto(String protoJsonStr, T message){
try{
Message.Builder builder = message.getDefaultInstanceForType().toBuilder();
JsonFormat.parser().ignoringUnknownFields().merge(protoJsonStr,builder);
T out = (T) builder.build();
return out;
}catch(Exception e){
throw new RuntimeException(("Error converting Json to proto", e);
}
}
}
$(document).on("wheel", "input[type=number]", function (e) {
$(this).blur();
});
Solution is to Add common-logging.x.x jar file
problem is glibc, which is not part of apline base iamge.
After adding it worked for me :)
Here are the steps to get the glibc
apk --no-cache add ca-certificates wget
wget -q -O /etc/apk/keys/sgerrand.rsa.pub https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub
wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.28-r0/glibc-2.28-r0.apk
apk add glibc-2.28-r0.apk
Yes. 'Z' stands for Zulu time, which is also GMT and UTC.
From http://en.wikipedia.org/wiki/Coordinated_Universal_Time:
The UTC time zone is sometimes denoted by the letter Z—a reference to the equivalent nautical time zone (GMT), which has been denoted by a Z since about 1950. The letter also refers to the "zone description" of zero hours, which has been used since 1920 (see time zone history). Since the NATO phonetic alphabet and amateur radio word for Z is "Zulu", UTC is sometimes known as Zulu time.
Technically, because the definition of nautical time zones is based on longitudinal position, the Z time is not exactly identical to the actual GMT time 'zone'. However, since it is primarily used as a reference time, it doesn't matter what area of Earth it applies to as long as everyone uses the same reference.
From wikipedia again, http://en.wikipedia.org/wiki/Nautical_time:
Around 1950, a letter suffix was added to the zone description, assigning Z to the zero zone, and A–M (except J) to the east and N–Y to the west (J may be assigned to local time in non-nautical applications; zones M and Y have the same clock time but differ by 24 hours: a full day). These were to be vocalized using a phonetic alphabet which pronounces the letter Z as Zulu, leading sometimes to the use of the term "Zulu Time". The Greenwich time zone runs from 7.5°W to 7.5°E longitude, while zone A runs from 7.5°E to 22.5°E longitude, etc.
I'm not familiar with grep but with Select-String you can do:
Get-ChildItem filename.txt | Select-String -Pattern <regexPattern>
You can also do that with Get-Content:
(Get-Content filename.txt) -match 'pattern'
I don't think desc
takes an na.rm
argument... I'm actually surprised it doesn't throw an error when you give it one. If you just want to remove NA
s, use na.omit
(base) or tidyr::drop_na
:
outcome.df %>%
na.omit() %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
library(tidyr)
outcome.df %>%
drop_na() %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
If you only want to remove NA
s from the HeartAttackDeath column, filter with is.na
, or use tidyr::drop_na
:
outcome.df %>%
filter(!is.na(HeartAttackDeath)) %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
outcome.df %>%
drop_na(HeartAttackDeath) %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
As pointed out at the dupe, complete.cases
can also be used, but it's a bit trickier to put in a chain because it takes a data frame as an argument but returns an index vector. So you could use it like this:
outcome.df %>%
filter(complete.cases(.)) %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
This will work:
setItemBackgroundResource(android.R.color.holo_red_light)
My Bots are running well against ReCaptcha.
Here my Solution.
Let your Bot do this Steps:
First write a Human Mouse Move Function to move your Mouse like a B-Spline (Ask me for Source Code). This is the most important Point.
Also use for better results a VPN like https://www.purevpn.com
For every Recpatcha do these Steps:
If you use VPN switch IP first
Clear all Browser Cookies
Clear all Browser Cache
Set one of these Useragents by Random:
a. Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
b. Mozilla/5.0 (Windows NT 6.1; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0
5 Move your Mouse with the Human Mouse Move Funktion from a RandomPoint into the I am not a Robot Image every time with different 10x10 Randomrange
Then Click ever with random delay between
WM_LBUTTONDOWN
and
WM_LBUTTONUP
Take Screenshot from Image Captcha
Send Screenshot to
or
and let they solve.
After receiving click cooridinates from captcha solver use your Human Mouse move Funktion to move and Click Recaptcha Images
Use your Human Mouse Move Funktion to move and Click to the Recaptcha Verify Button
In 75% all trys Recaptcha will solved
Chears Google
Tom
Please be noted, we need to add google maven to use support library starting from revision 25.4.0. As in the release note says:
Important: The support libraries are now available through Google's Maven repository. You do not need to download the support repository from the SDK Manager. For more information, see Support Library Setup.
Read more at Support Library Setup.
Play services
and Firebase
dependencies since version 11.2.0 are also need google maven. Read Some Updates to Apps Using Google Play services and Google APIs Android August 2017 - version 11.2.0 Release note.
So you need to add the google maven to your root build.gradle
like this:
allprojects {
repositories {
jcenter()
maven {
url "https://maven.google.com"
}
}
}
For Gradle build tools plugin version 3.0.0, you can use google()
repository (more at Migrate to Android Plugin for Gradle 3.0.0):
allprojects {
repositories {
jcenter()
google()
}
}
UPDATE:
From Google's Maven repository:
The most recent versions of the following Android libraries are available from Google's Maven repository:
To add them to your build, you need to first include Google's Maven repository in your top-level / root build.gradle
file:
allprojects {
repositories {
google()
// If you're using a version of Gradle lower than 4.1, you must instead use:
// maven {
// url 'https://maven.google.com'
// }
// An alternative URL is 'https://dl.google.com/dl/android/maven2/'
}
}
Then add the desired library to your module's dependencies block. For example, the appcompat
library looks like this:
dependencies {
compile 'com.android.support:appcompat-v7:26.1.0'
}
However, if you're trying to use an older version of the above libraries and your dependency fails, then it's not available in the Maven repository and you must instead get the library from the offline repository.
Problem can be also in different types of object's PK ("User" in your case) and type you ask hibernate to get session.get(type, id);
.
In my case error was identifier of an instance of <skipped> was altered from 16 to 32
.
Object's PK type was Integer
, hibernate was asked for Long
type.
Change Compile SDK Version:
compileSdkVersion 26
Build Tool Version:
buildToolsVersion "26.0.1"
Target SDK Version:
targetSdkVersion 26
Dependencies:
compile 'com.android.support:appcompat-v7:26+'
compile 'com.android.support:design:26+'
compile 'com.android.support:recyclerview-v7:26+'
compile 'com.android.support:cardview-v7:26+'
Sync Gradle.
FileInputStream with InputStreamReader is better than directly using FileReader, because the latter doesn't allow you to specify encoding charset.
Here is an example using BufferedReader, FileInputStream and InputStreamReader together, so that you could read lines from a file.
List<String> words = new ArrayList<>();
List<String> meanings = new ArrayList<>();
public void readAll( ) throws IOException{
String fileName = "College_Grade4.txt";
String charset = "UTF-8";
BufferedReader reader = new BufferedReader(
new InputStreamReader(
new FileInputStream(fileName), charset));
String line;
while ((line = reader.readLine()) != null) {
line = line.trim();
if( line.length() == 0 ) continue;
int idx = line.indexOf("\t");
words.add( line.substring(0, idx ));
meanings.add( line.substring(idx+1));
}
reader.close();
}
I usually don't specify height
, but do specify width: ...
and rows
and cols
.
Usually, in my cases, only width
and rows
are needed, for the textarea to look nice in relation to other elems. (And cols
is a fallback if someone doesn't use CSS, as explained in the other answers.)
((Specifying both rows
and height
feels a little bit like duplicating data I think?))
You can try something like this....
Dim cbTime
Set cbTime = ActiveSheet.CheckBoxes.Add(100, 100, 50, 15)
With cbTime
.Name = "cbTime"
.Characters.Text = "Time"
End With
If ActiveSheet.CheckBoxes("cbTime").Value = 1 Then 'or just cbTime.Value
'checked
Else
'unchecked
End If
If you are using the XmlDocument and XmlNode.
Say:
XmlNode f = root.SelectSingleNode("//form[@id='myform']");
Use:
XmlNode s = f.SelectSingleNode(".//input[@type='submit']");
It depends on the tool that you use. But .// will select any child, any depth from a reference node.
Use Modulus, but.. The above accepted answer is slightly inaccurate. I believe because x is a Number type in JavaScript that the operator should be a double assignment instead of a triple assignment, like so:
x % 2 == 0
Remember to declare your variables too, so obviously that line couldn't be written standalone. :-) Usually used as an if
statement. Hope this helps.
I had the same issue. Sometimes this happens if your MySQL service is turned down.
So you have to start it:
sudo service mysql start
Without your actual data or source, it will be hard for us to diagnose what is going wrong. However, I can make a few suggestions:
Given what you wrote, I suspect whatever converts the database data to XML is broken; it's propagating non-XML characters.
Create some database entries with non-XML characters (NULs, DELs, control characters, et al.) and run your XML converter on it. Output the XML to a file and look at it in a hex editor. If this contains non-XML characters, your converter is broken. Fix it or, if you cannot, create a preprocessor that rejects output with such characters.
If the converter output looks good, the problem is in your XML consumer; it's inserting non-XML characters somewhere. You will have to break your consumption process into separate steps, examine the output at each step, and narrow down what is introducing the bad characters.
Update: I just ran into an example of this myself! What was happening is that the producer was encoding the XML as UTF16 and the consumer was expecting UTF8. Since UTF16 uses 0x00 as the high byte for all ASCII characters and UTF8 doesn't, the consumer was seeing every second byte as a NUL. In my case I could change encoding, but suggested all XML payloads start with a BOM.
I had installed anaconda via the system installer on OS X in the past, which created a ~/.conda/environments.txt
owned by root. Conda could not modify this file, hence the error.
To fix this issue, I changed the ownership of that directory and file to my username:
sudo chown -R $USER ~/.conda
Well, yes, and no...
I understand that you want your local copies to "override" what's in the remote, but, oh, man, if someone has modified the files in the remote repo in some different way, and you just ignore their changes and try to "force" your own changes without even looking at possible conflicts, well, I weep for you (and your coworkers) ;-)
That said, though, it's really easy to do the "right thing..."
Step 1:
git stash
in your local repo. That will save away your local updates into the stash, then revert your modified files back to their pre-edit state.
Step 2:
git pull
to get any modified versions. Now, hopefully, that won't get any new versions of the files you're worried about. If it doesn't, then the next step will work smoothly. If it does, then you've got some work to do, and you'll be glad you did.
Step 3:
git stash pop
That will merge your modified versions that you stashed away in Step 1 with the versions you just pulled in Step 2. If everything goes smoothly, then you'll be all set!
If, on the other hand, there were real conflicts between what you pulled in Step 2 and your modifications (due to someone else editing in the interim), you'll find out and be told to resolve them. Do it.
Things will work out much better this way - it will probably keep your changes without any real work on your part, while alerting you to serious, serious issues.
Use Maven and use the maven-compiler-plugin to explicitly call the actual correct version JDK javac.exe command, because Maven could be running any version; this also catches the really stupid long standing bug in javac that does not spot runtime breaking class version jars and missing classes/methods/properties when compiling for earlier java versions! This later part could have easily been fixed in Java 1.5+ by adding versioning attributes to new classes, methods, and properties, or separate compiler versioning data, so is a quite stupid oversight by Sun and Oracle.
One of the most straightforward ways to do it is
git for-each-ref --format='%(refname:short)' refs/heads/
This works perfectly for scripts as well.
For those who are using python 2.7, python2.7 don't support django 2 so you can't install django.urls. If you are already using python 3.6 so you need to upgrade django to latest version which is greater than 2.
On PowerShell
pip install -U django
Verification
>
PS C:\Users\xyz> python
Python 3.6.6 |Anaconda, Inc.| (default, Jul 25 2018, 15:27:00) [MSC v.1910 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from django.urls import path
>>>
As next prompt came, it means it is installed now and ready to use.
I'd recommend this article on CSS Tricks by Chris Coyier entitled Better Helvetica:
http://css-tricks.com/snippets/css/better-helvetica/
He basically recommends the following declaration for covering all the bases:
body {
font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif;
font-weight: 300;
}
I use the consolidate function, like so:
element.transform.baseVal.consolidate()
The .e and .f values correspond to the x and y coordinates
You could even do a sub-query. Like this code below:
DELETE FROM users WHERE id IN(
SELECT user_id FROM Employee WHERE Company = '1' AND Date = '2013-05-06'
)
It can be done in a single command. You need to set the IDENTITY property for "auto number":
ALTER TABLE MyTable ADD mytableID int NOT NULL IDENTITY (1,1) PRIMARY KEY
More precisely, to set a named table level constraint:
ALTER TABLE MyTable
ADD MytableID int NOT NULL IDENTITY (1,1),
CONSTRAINT PK_MyTable PRIMARY KEY CLUSTERED (MyTableID)
See ALTER TABLE and IDENTITY on MSDN
Actually strings have very few resemblances to value types. For starters, not all value types are immutable, you can change the value of an Int32 all you want and it it would still be the same address on the stack.
Strings are immutable for a very good reason, it has nothing to do with it being a reference type, but has a lot to do with memory management. It's just more efficient to create a new object when string size changes than to shift things around on the managed heap. I think you're mixing together value/reference types and immutable objects concepts.
As far as "==": Like you said "==" is an operator overload, and again it was implemented for a very good reason to make framework more useful when working with strings.
The accepted answer in 2008 recommended SIGAR. However, as a comment from 2014 (@Alvaro) says:
Be careful when using Sigar, there are problems on x64 machines... Sigar 1.6.4 is crashing: EXCEPTION_ACCESS_VIOLATION and it seems the library doesn't get updated since 2010
My recommendation is to use https://github.com/oshi/oshi
Or the answer mentioned above.
This could be complicated way of doing
String newString = new String(oldString);
This shortens the String is the underlying char[] used is much longer.
However more specifically it will be checking that every character can be UTF-8 encoded.
There are some "characters" you can have in a String which cannot be encoded and these would be turned into ?
Any character between \uD800 and \uDFFF cannot be encoded and will be turned into '?'
String oldString = "\uD800";
String newString = new String(oldString.getBytes("UTF-8"), "UTF-8");
System.out.println(newString.equals(oldString));
prints
false
For people that are using PDO statements
$query = $db->prepare('show tables');
$query->execute();
while($rows = $query->fetch(PDO::FETCH_ASSOC)){
var_dump($rows);
}
Use mutple backgorund on the element, and use a linear-gradient as your color overlay by declaring both start and end color-stops as the same value.
Note that layers in a multi-background declaration are read much like they are rendered, top-to-bottom, so put your overlay first, then your bg image:
#header {
background:
linear-gradient(to bottom, rgba(100, 100, 0, 0.5), rgba(100, 100, 0, 0.5)) cover,
url(../img/bg.jpg) 0 0 no-repeat fixed;
height: 100%;
overflow: hidden;
color: #FFFFFF
}
Just also to draw your attention to this:
https://code.msdn.microsoft.com/windowsdesktop/C-and-Python-interprocess-171378ee
It works great.
I know this is not an answer, but I'd like to contribute to this matter for what it's worth. It would be great if they could release justify-self
for flexbox to make it truly flexible.
It's my belief that when there are multiple items on the axis, the most logical way for justify-self
to behave is to align itself to its nearest neighbours (or edge) as demonstrated below.
I truly hope, W3C takes notice of this and will at least consider it. =)
This way you can have an item that is truly centered regardless of the size of the left and right box. When one of the boxes reaches the point of the center box it will simply push it until there is no more space to distribute.
The ease of making awesome layouts are endless, take a look at this "complex" example.
There are a couple of methods you could use, but to determine which one is best we first need to know if you are aware of the user's altitude, as well as the altitude of the other points?
Depending on the level of accuracy you are after, you could look into either the Haversine or Vincenty formulae...
These pages detail the formulae, and, for the less mathematically inclined also provide an explanation of how to implement them in script!
Haversine Formula: http://www.movable-type.co.uk/scripts/latlong.html
Vincenty Formula: http://www.movable-type.co.uk/scripts/latlong-vincenty.html
If you have any problems with any of the meanings in the formulae, just comment and I'll do my best to answer them :)
Custom Module Needs common module
import { CommonModule } from "@angular/common";
@NgModule({
imports: [
CommonModule
]
})
This was the most simple of all the solutions originally posted by YingYang Mar 11 '14 at 15:049 under the original response to the users original question
I am using his same solution 2.5 years later with google maps v3.18 and it works like a charm
markersArray.push(newMarker) ;
while(markersArray.length) { markersArray.pop().setMap(null); }
// No need to clear the array after that.
This is one way.
List<int> list = new List<int>{ 1, 2, 3, 4, 5 };
This is another way.
List<int> list2 = new List<int>();
list2.Add(1);
list2.Add(2);
Same goes with strings.
Eg:
List<string> list3 = new List<string> { "Hello", "World" };
Make a drop-down menu with several options (As many as you want!)
<select>
<option value="giveItAName">Give it a name
<option value="bananaShark">Ridiculous animal
<ooption value="Unknown">Give more options!
</select>
I made a bit hilarious. Here's the code snippet:
<select>_x000D_
<option value="RidiculousObject">Banana Shark_x000D_
<option value="SuperDuperCoding">select tag and option tag!_x000D_
<option value="Unknown">Add more tags to add more options!_x000D_
</select>_x000D_
<h1>Only 1 option (Useless)</h1>_x000D_
<select>_x000D_
<option value="Single">Single Option_x000D_
</select>
_x000D_
yay the snippet worked
There really isn't a difference; there are about 5 different methods of doing it. However, the ones I see most often are document.location
and window.location
because they're supported by all major browsers. (I've personally never seen window.navigate
used in production code, so maybe it doesn't have very good support?)
There is a parse_dates
parameter for read_csv
which allows you to define the names of the columns you want treated as dates or datetimes:
date_cols = ['col1', 'col2']
pd.read_csv(file, sep='\t', header=None, names=headers, parse_dates=date_cols)
Everything in JavaScript is pass by reference, so if you want a true deep copy of the objects in the array, the best method I can think of is to serialize the entire array to JSON and then de-serialize it back.
I've had a few cranberry-vodkas tonight so I might be missing something...Is setting the range necessary? Why not use:
Activeworkbook.Sheets("Game").Range("A1").value = "Subtotal"
Does this fail as well?
Looks like you tried something similar:
'Worksheets("Game").Range("A1") = "Asdf"
However, Worksheets is a collection, so you can't reference "Game". I think you need to use the Sheets object instead.
You can also do it in a three line method:
public static int gcd(int x, int y){
return (y == 0) ? x : gcd(y, x % y);
}
Here, if y = 0
, x is returned. Otherwise, the gcd
method is called again, with different parameter values.
For those looking to center the column elements on the screen when you don't have the exact number to fill your grid, I have written a little piece of JavaScript to return the class names:
function colCalculator(totalNumberOfElements, elementsPerRow, screenSize) {
var arrayFill = function (size, content) {
return Array.apply(null, Array(size)).map(String.prototype.valueOf, content);
};
var elementSize = parseInt(12 / elementsPerRow, 10);
var normalClassName = 'col-' + screenSize + '-' + elementSize;
var numberOfFittingElements = parseInt(totalNumberOfElements / elementsPerRow, 10) * elementsPerRow;
var numberOfRemainingElements = totalNumberOfElements - numberOfFittingElements;
var ret = arrayFill(numberOfFittingElements, normalClassName);
var remainingSize = 12 - numberOfRemainingElements * elementSize;
var remainingLeftSize = parseInt(remainingSize / 2, 10);
return ret.concat(arrayFill(numberOfRemainingElements, normalClassName + ' col-' + screenSize + '-push-' + remainingLeftSize));
}
If you have 5 elements and you want to have 3 per row on a md
screen, you do this:
colCalculator(5, 3, 'md')
>> ["col-md-4", "col-md-4", "col-md-4", "col-md-4 col-md-push-2", "col-md-4 col-md-push-2"]
Keep in mind, the second argument must be dividable by 12.
Arhhh this got me and I spent a lot of time troubleshooting it. The problem was my tests were being executed in Parellel (the default with XUnit).
To make my test run sequentially I decorated each class with this attribute:
[Collection("Sequential")]
This is how I worked it out: Execute unit tests serially (rather than in parallel)
I mock up my EF In Memory context with GenFu:
private void CreateTestData(TheContext dbContext)
{
GenFu.GenFu.Configure<Employee>()
.Fill(q => q.EmployeeId, 3);
var employee = GenFu.GenFu.ListOf<Employee>(1);
var id = 1;
GenFu.GenFu.Configure<Team>()
.Fill(p => p.TeamId, () => id++).Fill(q => q.CreatedById, 3).Fill(q => q.ModifiedById, 3);
var Teams = GenFu.GenFu.ListOf<Team>(20);
dbContext.Team.AddRange(Teams);
dbContext.SaveChanges();
}
When Creating Test Data, from what I can deduct, it was alive in two scopes (once in the Employee's Tests while the Team tests were running):
public void Team_Index_should_return_valid_model()
{
using (var context = new TheContext(CreateNewContextOptions()))
{
//Arrange
CreateTestData(context);
var controller = new TeamController(context);
//Act
var actionResult = controller.Index();
//Assert
Assert.NotNull(actionResult);
Assert.True(actionResult.Result is ViewResult);
var model = ModelFromActionResult<List<Team>>((ActionResult)actionResult.Result);
Assert.Equal(20, model.Count);
}
}
Wrapping both Test Classes with this sequential collection attribute has cleared the apparent conflict.
[Collection("Sequential")]
Additional references:
https://github.com/aspnet/EntityFrameworkCore/issues/7340
EF Core 2.1 In memory DB not updating records
http://www.jerriepelser.com/blog/unit-testing-aspnet5-entityframework7-inmemory-database/
http://gunnarpeipman.com/2017/04/aspnet-core-ef-inmemory/
https://github.com/aspnet/EntityFrameworkCore/issues/12459
Preventing tracking issues when using EF Core SqlLite in Unit Tests
You Can Now Delete App.
On October 4, 2018, Apple released a new update of the appstoreconnect (previously iTunesConnect).
It's now easier to manage apps you no longer need in App Store Connect by removing them from your main view in My Apps, even if they haven't been submitted for approval. You must have the Legal or Admin role to remove apps.
From the homepage, click My Apps, then choose the app you want to remove. Scroll to the Additional Information section, then click Remove App. In the dialog that appears, click Remove. You can restore a removed app at any time, as long as the app name is not currently in use by another developer.
From the homepage, click My Apps. In the upper right-hand corner, click the arrow next to All Statuses. From the drop-down menu, choose Removed Apps. Choose the app you want to restore. Scroll to the Additional Information section, then click Restore App.
You can show the removed app by clicking on all Statuses on the top right of the screen and then select Removed Apps. Thank you @Daniel for the tips.
Please note:
you can only remove apps if all versions of that app are in one of the following states: Prepare for Submission, Invalid Binary, Developer Rejected, Rejected, Metadata Rejected, Developer, Removed from Sale.
note that self
could actually be any valid python identifier. For example, we could just as easily write, from Chris B's example:
class A(object):
def __init__(foo):
foo.x = 'Hello'
def method_a(bar, foo):
print bar.x + ' ' + foo
and it would work exactly the same. It is however recommended to use self because other pythoners will recognize it more easily.
The JSONArray.length() returns the number of elements in the JSONObject contained in the Array. Not the size of the array itself.
//use jquery
$select.trigger('mousedown')
I had to add the .classpath too, form a java project. I made a dummy java project and looked in the workspace for this dummy java project to see what is required. I transferred the two files. profile and .claspath to my checked out, and disconnected source from my subversion server. From then on it turned to a java project from just a plain old project.
I asked the same question some time ago and had to answer it myself. Here's what I came up with:
It seems, my first thought [that it comes from its JavaScript roots] was correct.
'\/' === '/'
in JavaScript, and JSON is valid JavaScript. However, why are the other ignored escapes (like\z
) not allowed in JSON?The key for this was reading http://www.cs.tut.fi/~jkorpela/www/revsol.html, followed by http://www.w3.org/TR/html4/appendix/notes.html#h-B.3.2. The feature of the slash escape allows JSON to be embedded in HTML (as SGML) and XML.
Adding to what @Shog9 posted, you can also restrict dates individually in the beforeShowDay: callback function.
You supply a function that takes a date and returns a boolean array:
"$(".selector").datepicker({ beforeShowDay: nationalDays})
natDays = [[1, 26, 'au'], [2, 6, 'nz'], [3, 17, 'ie'], [4, 27, 'za'],
[5, 25, 'ar'], [6, 6, 'se'], [7, 4, 'us'], [8, 17, 'id'], [9, 7,
'br'], [10, 1, 'cn'], [11, 22, 'lb'], [12, 12, 'ke']];
function nationalDays(date) {
for (i = 0; i < natDays.length; i++) {
if (date.getMonth() == natDays[i][0] - 1 && date.getDate() ==
natDays[i][1]) {
return [false, natDays[i][2] + '_day'];
}
}
return [true, ''];
}
You can turn an array into a stream by using Arrays.stream()
:
int[] ns = new int[] {1,2,3,4,5};
Arrays.stream(ns);
Once you've got your stream, you can use any of the methods described in the documentation, like sum()
or whatever. You can map
or filter
like in Python by calling the relevant stream methods with a Lambda function:
Arrays.stream(ns).map(n -> n * 2);
Arrays.stream(ns).filter(n -> n % 4 == 0);
Once you're done modifying your stream, you then call toArray()
to convert it back into an array to use elsewhere:
int[] ns = new int[] {1,2,3,4,5};
int[] ms = Arrays.stream(ns).map(n -> n * 2).filter(n -> n % 4 == 0).toArray();
I faced the same issue. I had missed the forms module import tag in the app.module.ts
import { FormsModule } from '@angular/forms';
@NgModule({
imports: [BrowserModule,
FormsModule
],
This actually can be done in pure bash:
hello=ho02123ware38384you443d34o3434ingtod38384day
re='(.*)[0-9]+(.*)'
while [[ $hello =~ $re ]]; do
hello=${BASH_REMATCH[1]}${BASH_REMATCH[2]}
done
echo "$hello"
...yields...
howareyoudoingtodday
That query is failing and returning false
.
Put this after mysqli_query()
to see what's going on.
if (!$check1_res) {
printf("Error: %s\n", mysqli_error($con));
exit();
}
For more information:
PDT eclipse from ZEND has a mac version (PDT all-in-one).
I've been using it for about 3 months and it's pretty solid and has debugging capabilities with xdebug (debug howto) and zend debugger.
You can run a script, or a more complex parameter to the RUN. Here is an example from a Dockerfile I've downloaded to look at previously:
RUN cd /opt && unzip treeio.zip && mv treeio-master treeio && \
rm -f treeio.zip && cd treeio && pip install -r requirements.pip
Because of the use of '&&', it will only get to the final 'pip install' command if all the previous commands have succeeded.
In fact, since every RUN creates a new commit & (currently) an AUFS layer, if you have too many commands in the Dockerfile, you will use up the limits, so merging the RUNs (when the file is stable) can be a very useful thing to do.
melt()
from the reshape2 package gets you close ...
library(reshape2)
(res <- melt(as.data.frame(mat), id="time"))
# time variable value
# 1 0.0 C_0 0.1
# 2 0.5 C_0 0.2
# 3 1.0 C_0 0.3
# 4 0.0 C_1 0.3
# 5 0.5 C_1 0.4
# 6 1.0 C_1 0.5
... although you may want to post-process its results to get your preferred column names and ordering.
setNames(res[c("variable", "time", "value")], c("name", "time", "val"))
# name time val
# 1 C_0 0.0 0.1
# 2 C_0 0.5 0.2
# 3 C_0 1.0 0.3
# 4 C_1 0.0 0.3
# 5 C_1 0.5 0.4
# 6 C_1 1.0 0.5
$dbh1 = mysql_connect($hostname, $username, $password);
$dbh2 = mysql_connect($hostname, $username, $password, true);
mysql_select_db('database1', $dbh1);
mysql_select_db('database2',$dbh2);
mysql_query('select * from tablename', $dbh1);
mysql_query('select * from tablename', $dbh2);
This is the most obvious solution that I use but just remember, if the username / password for both the database is exactly same in the same host, this solution will always be using the first connection. So don't be confused that this is not working in such case. What you need to do is, create 2 different users for the 2 databases and it will work.
All the setting are stored in .metadata file in your workspace delete this and you are good to go
A "one liner" (on many line for easy read)) to be put directly into a variable:
var oneMonthAgo = new Date(
new Date().getFullYear(),
new Date().getMonth() - 1,
new Date().getDate()
);
Simply add class="img-responsive" to the video tag. I'm doing this on a current project, and it works. It doesn't need to be wrapped in anything.
<video class="img-responsive" src="file.mp4" autoplay loop/>
And I have created the model scope
More about scopes:
Code:
/**
* Scope a query to only include the last n days records
*
* @param \Illuminate\Database\Eloquent\Builder $query
* @return \Illuminate\Database\Eloquent\Builder
*/
public function scopeWhereDateBetween($query,$fieldName,$fromDate,$todate)
{
return $query->whereDate($fieldName,'>=',$fromDate)->whereDate($fieldName,'<=',$todate);
}
And in the controller, add the Carbon Library to top
use Carbon\Carbon;
OR
use Illuminate\Support\Carbon;
To get the last 10 days record from now
$lastTenDaysRecord = ModelName::whereDateBetween('created_at',(new Carbon)->subDays(10)->toDateString(),(new Carbon)->now()->toDateString() )->get();
To get the last 30 days record from now
$lastTenDaysRecord = ModelName::whereDateBetween('created_at',(new Carbon)->subDays(30)->toDateString(),(new Carbon)->now()->toDateString() )->get();
// Define appendVal by extending JQuery_x000D_
$.fn.appendVal = function( TextToAppend ) {_x000D_
return $(this).val(_x000D_
$(this).val() + TextToAppend_x000D_
);_x000D_
};_x000D_
//______________________________________________x000D_
_x000D_
// And that's how to use it:_x000D_
$('#SomeID')_x000D_
.appendVal( 'This text was just added' )
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<form>_x000D_
<textarea _x000D_
id = "SomeID"_x000D_
value = "ValueText"_x000D_
type = "text"_x000D_
>Current NodeText_x000D_
</textarea>_x000D_
</form>
_x000D_
Well when creating this example I somehow got a little confused. "ValueText" vs >Current NodeText< Isn't .val()
supposed to run on the data of the value attribute? Anyway I and you me may clear up this sooner or later.
However the point for now is:
When working with form data use .val().
When dealing with the mostly read only data in between the tag use .text() or .append() to append text.
There is nothing wrong with the idea of modifying an element inside a list while traversing it (don't modify the list itself, that's not recommended), but it can be better expressed like this:
for (int i = 0; i < letters.size(); i++) {
letters.set(i, "D");
}
At the end the whole list will have the letter "D"
as its content. It's not a good idea to use an enhanced for
loop in this case, you're not using the iteration variable for anything, and besides you can't modify the list's contents using the iteration variable.
Notice that the above snippet is not modifying the list's structure - meaning: no elements are added or removed and the lists' size remains constant. Simply replacing one element by another doesn't count as a structural modification. Here's the link to the documentation quoted by @ZouZou in the comments, it states that:
A structural modification is any operation that adds or deletes one or more elements, or explicitly resizes the backing array; merely setting the value of an element is not a structural modification
Try this: it solved the problem for me
android:adjustViewBounds="true"
android:scaleType="fitXY"
First google search yielded me this answer. So I thought of updating this with newer version of attach, detach.
Create database dbname
On
(
Filename= 'path where you copied files',
Filename ='path where you copied log'
)
For attach;
Further,if your database is cleanly shutdown(there are no active transactions while database was shutdown) and you dont have log file,you can use below method,SQL server will create a new transaction log file..
Create database dbname
On
(
Filename= 'path where you copied files'
)
For attach;
if you don't specify transaction log file,SQL will try to look in the default path and will try to use it irrespective of whether database was cleanly shutdown or not..
Here is what MSDN has to say about this..
If a read-write database has a single log file and you do not specify a new location for the log file, the attach operation looks in the old location for the file. If it is found, the old log file is used, regardless of whether the database was shut down cleanly. However, if the old log file is not found and if the database was shut down cleanly and has no active log chain, the attach operation attempts to build a new log file for the database.
There are some restrictions with this approach and some side affects too..
1.attach-and-detach operations both disable cross-database ownership chaining for the database
2.Database trustworthy is set to off
3.Detaching a read-only database loses information about the differential bases of differential backups.
Most importantly..you can't attach a database with recent versions to an earlier version
References:
https://msdn.microsoft.com/en-in/library/ms190794.aspx
Right now there are no elements in your list so you cannot add to index 5 of the list when it does not exist. You are confusing the capacity of the list with its current size.
Just call:
arr.add(10)
to add the Integer to your ArrayList
If you want to use a function form a package or module in python you have to import and reference them. For example normally you do the following to draw 5 points( [1,5],[2,4],[3,3],[4,2],[5,1]) in the space:
import matplotlib.pyplot
matplotlib.pyplot.plot([1,2,3,4,5],[5,4,3,2,1],"bx")
matplotlib.pyplot.show()
In your solution
from matplotlib import*
This imports the package matplotlib and "plot is not defined" means there is no plot function in matplotlib you can access directly, but instead if you import as
from matplotlib.pyplot import *
plot([1,2,3,4,5],[5,4,3,2,1],"bx")
show()
Now you can use any function in matplotlib.pyplot without referencing them with matplotlib.pyplot.
I would recommend you to name imports you have, in this case you can prevent disambiguation and future problems with the same function names. The last and clean version of above example looks like:
import matplotlib.pyplot as plt
plt.plot([1,2,3,4,5],[5,4,3,2,1],"bx")
plt.show()
I think you should append .value in IF statement:
If Cells(i, "A").Value <> "Miami" And Cells(i, "D").Value <> "Florida" Then
Cells(i, "C").Value = "BA"
End IF
public class Country
{
public string Name { get; set; }
public IList<City> Cities { get; set; }
public Country()
{
Cities = new List<City>();
}
}
public class City
{
public string Name { get; set; }
}
List<Country> Countries = new List<Country>
{
new Country
{
Name = "Germany",
Cities =
{
new City {Name = "Berlin"},
new City {Name = "Hamburg"}
}
},
new Country
{
Name = "England",
Cities =
{
new City {Name = "London"},
new City {Name = "Birmingham"}
}
}
};
bindingSource1.DataSource = Countries;
member_CountryComboBox.DataSource = bindingSource1.DataSource;
member_CountryComboBox.DisplayMember = "Name";
member_CountryCombo
Box.ValueMember = "Name";
This is the code I am using now.
xargs -a your_file | sed 's/ /,/g'
This is a shorter way.
#!/bin/bash
process_install()
{
commands...
commands...
}
process_exit()
{
commands...
commands...
}
if [ "$choice" = "true" ] then
process_install
else
process_exit
fi
IE10 has uses the old syntax. So:
display: -ms-flexbox; /* will work on IE10 */
display: flex; /* is new syntax, will not work on IE10 */
see css-tricks.com/snippets/css/a-guide-to-flexbox:
(tweener) means an odd unofficial syntax from [2012] (e.g. display: flexbox;)
This might help someone:
I am installing the latest Java on my system for development, and currently it's Java SE 7. Now, let's dive into this "madness", as you put it...
All of these are the same (when developers are talking about Java for development):
Starting with Java v1.5:
And we can assume this will remain for future versions.
Next, for developers, download JDK, not JRE.
JDK will contain JRE. If you need JDK and JRE, get JDK. Both will be installed from the single JDK install, as you will see below.
As someone above mentioned:
Here's the step by step links I followed (one step leads to the next, this is all for a single download) to download Java for development (JDK):
Keep in mind the above links are for reference purposes only, to show you the step by step method of what it takes to download the JDK.
And install with default settings to:
Remember from above that JDK contains JRE, which makes sense if you know what they both are. Again, see above.
After your install, double check “C:\Program Files\Java” to see both these folders. Now you know what they are and why they are there.
I know I wrote this for newbies, but I enjoy knowing things in full detail, so I hope this helps.
Thay are removed.
Use float-left
instead of pull-left
.
And float-right
instead of pull-right
.
Check bootstrap Documentation here:
Added .float-{sm,md,lg,xl}-{left,right,none} classes for responsive floats and removed .pull-left and .pull-right since they’re redundant to .float-left and .float-right.
Hopefully this helps someone else.
My issue was that I had commented HTML in a PHP callback function via AJAX that was parsing the comments and return invalid JSON.
Once I removed the commented HTML, all was good and the JSON was parsed with no issues.
That's a very complex question for a simple answer.
You may want to take a look at existing API frameworks, like Swagger Specification (OpenAPI), and services like apiary.io and apiblueprint.org.
Also, here's an example of the same REST API described, organized and even styled in three different ways. It may be a good start for you to learn from existing common ways.
At the very top level I think quality REST API docs require at least the following:
Also there are a lot of JSON/XML-based doc frameworks which can parse your API definition or schema and generate a convenient set of docs for you. But the choice for a doc generation system depends on your project, language, development environment and many other things.
It is pretty easy. If you are using DB generated Ids (like IDENTITY
in MS SQL) you just need to add entity to ObjectSet
and SaveChanges
on related ObjectContext
. Id
will be automatically filled for you:
using (var context = new MyContext())
{
context.MyEntities.Add(myNewObject);
context.SaveChanges();
int id = myNewObject.Id; // Yes it's here
}
Entity framework by default follows each INSERT
with SELECT SCOPE_IDENTITY()
when auto-generated Id
s are used.
request.stream
is the stream of raw data passed to the application by the WSGI server. No parsing is done when reading it, although you usually want request.get_data()
instead.
data = request.stream.read()
The stream will be empty if it was previously read by request.data
or another attribute.
You can also customize the card theme globally with ThemeData.cardTheme
:
MaterialApp(
title: 'savvy',
theme: ThemeData(
cardTheme: CardTheme(
shape: RoundedRectangleBorder(
borderRadius: const BorderRadius.all(
Radius.circular(8.0),
),
),
),
// ...
This works in Python 2 and Python 3:
A random key:
random.choice(list(d.keys()))
A random value
random.choice(list(d.values()))
A random key and value
random.choice(list(d.items()))
The order of elements in an array ([]
) is maintained. The order of elements (name:value pairs) in an "object" ({}
) is not, and it's usual for them to be "jumbled", if not by the JSON formatter/parser itself then by the language-specific objects (Dictionary, NSDictionary, Hashtable, etc) that are used as an internal representation.
A> a typdef aids in the meaning and documentation of a program by allowing creation of more meaningful synonyms for data types. In addition, they help parameterize a program against portability problems (K&R, pg147, C prog lang).
B> a structure defines a type. Structs allows convenient grouping of a collection of vars for convenience of handling (K&R, pg127, C prog lang.) as a single unit
C> typedef'ing a struct is explained in A above.
D> To me, structs are custom types or containers or collections or namespaces or complex types, whereas a typdef is just a means to create more nicknames.
Copying into Eclipse and paste it in Word is also another option.
int sign(float n)
{
union { float f; std::uint32_t i; } u { n };
return 1 - ((u.i >> 31) << 1);
}
This function assumes:
hg update [-r REV]
If later you commit, you will effectively create a new branch. Then you might continue working only on this branch or eventually merge the existing one into it.
You can't call a PHP function with Javascript, in the same way you can't call arbitrary PHP functions when you load a page (just think of the security implications).
If you need to wrap your code in a function for whatever reason, why don't you either put a function call under the function definition, eg:
function test() {
// function code
}
test();
Or, use a PHP include:
include 'functions.php'; // functions.php has the test function
test();
The rules for turning on the carry flag in binary/integer math are two:
The carry flag is set if the addition of two numbers causes a carry out of the most significant (leftmost) bits added. 1111 + 0001 = 0000 (carry flag is turned on)
The carry (borrow) flag is also set if the subtraction of two numbers requires a borrow into the most significant (leftmost) bits subtracted. 0000 - 0001 = 1111 (carry flag is turned on) Otherwise, the carry flag is turned off (zero).
In unsigned arithmetic, watch the carry flag to detect errors.
In signed arithmetic, the carry flag tells you nothing interesting.
The rules for turning on the overflow flag in binary/integer math are two:
If the sum of two numbers with the sign bits off yields a result number with the sign bit on, the "overflow" flag is turned on. 0100 + 0100 = 1000 (overflow flag is turned on)
If the sum of two numbers with the sign bits on yields a result number with the sign bit off, the "overflow" flag is turned on. 1000 + 1000 = 0000 (overflow flag is turned on)
Otherwise the "overflow" flag is turned off
Note that you only need to look at the sign bits (leftmost) of the three numbers to decide if the overflow flag is turned on or off.
If you are doing two's complement (signed) arithmetic, overflow flag on means the answer is wrong - you added two positive numbers and got a negative, or you added two negative numbers and got a positive.
If you are doing unsigned arithmetic, the overflow flag means nothing and should be ignored.
For more clarification please refer: http://teaching.idallen.com/dat2343/10f/notes/040_overflow.txt
Is there a specific reason why you need to use an array? If you don't know the size before hand you might want to use List<String>
List<String> list = new List<String>();
list.Add("Hello");
list.Add("world");
list.Add("!");
Console.WriteLine(list[2]);
Will give you an output of
!
MSDN - List(T) for more information
To Change it permanently in ubuntu do the following
in the ubuntu command line
sudo nano /etc/mysql/my.cnf
Then add the following
[mysqld]
sql_mode=
I did not read all of the answers, but I did not find the answer I was looking for.
I use Python and don't want to do find/replace or 'blank operations' each time I want to compile code...
So the best solution for me is that it happens on the fly!
Here is the simple solution I found:
Go to:
The easiest way is to redirect the output of the echo
by >>
:
echo 'VNCSERVERS="1:root"' >> /etc/sysconfig/configfile
echo 'VNCSERVERARGS[1]="-geometry 1600x1200"' >> /etc/sysconfig/configfile
If you are sure about your sent JSON then you must trace your API carefully:
Microsoft.AspNet.WebApi.Tracing
packageconfig.EnableSystemDiagnosticsTracing();
in the WebApiConfig
class inside Register
method.Now look at the Debug output and you will probably find an invalid ModelState
log entry.
If ModelState
is invalid you may find the real cause in its Errors
:
No one can even guess such an exception:
Could not load file or assembly 'Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
There shouldn't be any difference in gzip & deflate for decompression. Gzip is just deflate with a few dozen byte header wrapped around it including a checksum. The checksum is the reason for the slower compression. However when you're precompressing zillions of files you want those checksums as a sanity check in your filesystem. In addition you can utilize commandline tools to get stats on the file. For our site we are precompressing a ton of static data (the entire open directory, 13,000 games, autocomplete for millions of keywords, etc.) and we are ranked 95% faster than all websites by Alexa. Faxo Search. However, we do utilize a home grown proprietary web server. Apache/mod_deflate just didn't cut it. When those files are compressed into the filesystem not only do you take a hit for your file with the minimum filesystem block size but all the unnecessary overhead in managing the file in the filesystem that the webserver could care less about. Your concerns should be total disk footprint and access/decompression time and secondarily speed in being able to get this data precompressed. The footprint is important because even though disk space is cheap you want as much as possible to fit in the cache.
The Address property of a cell can get this for you:
MsgBox Cells(1, 1).Address(RowAbsolute:=False, ColumnAbsolute:=False)
returns A1
.
The other way around can be done with the Row
and Column
property of Range
:
MsgBox Range("A1").Row & ", " & Range("A1").Column
returns 1,1
.
Just write the long to a DataOutputStream with an underlying ByteArrayOutputStream. From the ByteArrayOutputStream you can get the byte-array via toByteArray():
class Main
{
public static byte[] long2byte(long l) throws IOException
{
ByteArrayOutputStream baos=new ByteArrayOutputStream(Long.SIZE/8);
DataOutputStream dos=new DataOutputStream(baos);
dos.writeLong(l);
byte[] result=baos.toByteArray();
dos.close();
return result;
}
public static long byte2long(byte[] b) throws IOException
{
ByteArrayInputStream baos=new ByteArrayInputStream(b);
DataInputStream dos=new DataInputStream(baos);
long result=dos.readLong();
dos.close();
return result;
}
public static void main (String[] args) throws java.lang.Exception
{
long l=123456L;
byte[] b=long2byte(l);
System.out.println(l+": "+byte2long(b));
}
}
Works for other primitives accordingly.
Hint: For TCP you do not need the byte[] manually. You will use a Socket socket
and its streams
OutputStream os=socket.getOutputStream();
DataOutputStream dos=new DataOutputStream(os);
dos.writeLong(l);
//etc ..
instead.
When a number as a decimal it is usually a float
in Python.
If you want to remove the decimal and keep it an integer (int
). You can call the int()
method on it like so...
>>> int(2.0)
2
However, int
rounds down so...
>>> int(2.9)
2
If you want to round to the nearest integer you can use round
:
>>> round(2.9)
3.0
>>> round(2.4)
2.0
And then call int()
on that:
>>> int(round(2.9))
3
>>> int(round(2.4))
2
I think I had a better output, especially for a double datatype sorting.
Though this question has been marked answered, perhaps this will help someone else;
Arrays.sort(newTag, new Comparator<String[]>() {
@Override
public int compare(final String[] entry1, final String[] entry2) {
final Integer time1 = (int)Integer.valueOf((int) Double.parseDouble(entry1[2]));
final Integer time2 = (int)Integer.valueOf((int) Double.parseDouble(entry2[2]));
return time1.compareTo(time2);
}
});
To have a constant date format irrespective of the computer settings, you must use 3 different input elements to capture day, month, and year respectively. However, you need to validate the user input to ensure that you have a valid date as shown bellow
<input id="txtDay" type="text" placeholder="DD" />
<input id="txtMonth" type="text" placeholder="MM" />
<input id="txtYear" type="text" placeholder="YYYY" />
<button id="but" onclick="validateDate()">Validate</button>
function validateDate() {
var date = new Date(document.getElementById("txtYear").value, document.getElementById("txtMonth").value, document.getElementById("txtDay").value);
if (date == "Invalid Date") {
alert("jnvalid date");
}
}
What you have from the server is a string like below:
var data = '[{"id":"197","category":"Damskie"},{"id":"198","category":"M\u0119skie"}]';
Then you can use JSON.parse
function to change it to an object. Then you access the category like below:
var dataObj = JSON.parse(data);
console.log(dataObj[0].category); //will return Damskie
console.log(dataObj[1].category); //will return Meskie
You can also see this error when selecting for a union where corresponding columns can be null.
select * from (select D.dept_no, D.nullable_comment
from dept D
union
select R.dept_no, NULL
from redundant_dept R
)
This apparently confuses the parser, a solution is to assign a column alias to the always null column.
select * from (select D.dept_no, D.comment
from dept D
union
select R.dept_no, NULL "nullable_comment"
from redundant_dept R
)
The alias does not have to be the same as the corresponding column, but the column heading in the result is driven by the first query from among the union members, so it's probably a good practice.
Comments suggest that git reset --merge
is an alias for git merge --abort
. It is worth noticing that git merge --abort
is only equivalent to git reset --merge
given that a MERGE_HEAD
is present. This can be read in the git help for merge command.
git merge --abort is equivalent to git reset --merge when MERGE_HEAD is present.
After a failed merge, when there is no MERGE_HEAD
, the failed merge can be undone with git reset --merge
, but not necessarily with git merge --abort
. They are not only old and new syntax for the same thing.
Personally, I find git reset --merge
much more powerful for scenarios similar to the described one, and failed merges in general.
You can call java myProg arg1 arg2 ...
:
public static void main (String args[]) {
BufferedReader in = new BufferedReader(new FileReader(args[0]));
}
here is awk command: -F = field separator == +
echo "2.1+3.1" | awk -F "+" '{print ($1+$2)}'
For tasks of this type I usually use Crawller4j + Jsoup.
With crawler4j I download the pages from a domain, you can specify which ULR with a regular expression.
With jsoup, I "parsed" the html data you have searched for and downloaded with crawler4j.
Normally you can also download data with jsoup, but Crawler4J makes it easier to find links. Another advantage of using crawler4j is that it is multithreaded and you can configure the number of concurrent threads
It used to be possible to disable the Home button, but now it isn't. It's due to malicious software that would trap the user.
You can see more detailes here: Disable Home button in Android 4.0+
Finally, the Back button can be disabled, as you can see in this other question: Disable back button in android
I don't know this is correct format or not. but it can solved my problem with removing type="text/css" when insert css code in html/tpl file with php.
<style type="text/css"></style>
_x000D_
become
<style></style>
_x000D_
The easiest solution is the first one of your examples:
<a href="#link" class="btn btn-info" role="button">Link Button</a>
The reason it's not working for you is most likely, as you say, a problem in the theme you're using. There is no reason to resort to bloated extra markup or inline Javascript for this.
I was looking to do the same thing, and I have a work around that seems to be less complicated using the Frequency and Index functions. I use this part of the function from averaging over multiple sheets while excluding the all the 0's.
=(FREQUENCY(Start:End!B1,-0.000001)+INDEX(FREQUENCY(Start:End!B1,0),2))
Use $ne
-- $not
should be followed by the standard operator:
An examples for $ne
, which stands for not equal:
use test
switched to db test
db.test.insert({author : 'me', post: ""})
db.test.insert({author : 'you', post: "how to query"})
db.test.find({'post': {$ne : ""}})
{ "_id" : ObjectId("4f68b1a7768972d396fe2268"), "author" : "you", "post" : "how to query" }
And now $not
, which takes in predicate ($ne
) and negates it ($not
):
db.test.find({'post': {$not: {$ne : ""}}})
{ "_id" : ObjectId("4f68b19c768972d396fe2267"), "author" : "me", "post" : "" }
Try this:
npm --depth 9999 update
npm rebuild node-sass
This does what you want without you having to create a new array as it returns a new array.
int[] original = new int[300000];
int[] firstHalf = Arrays.copyOfRange(original, 0, original.length/2);
Recently I was learning about chrono library and thought of implementing a sleep function on my own. Here is the code,
#include <cmath>
#include <chrono>
template <typename rep = std::chrono::seconds::rep,
typename period = std::chrono::seconds::period>
void sleep(std::chrono::duration<rep, period> sec)
{
using sleep_duration = std::chrono::duration<long double, std::nano>;
std::chrono::steady_clock::time_point start = std::chrono::steady_clock::now();
std::chrono::steady_clock::time_point end = std::chrono::steady_clock::now();
long double elapsed_time =
std::chrono::duration_cast<sleep_duration>(end - start).count();
long double sleep_time =
std::chrono::duration_cast<sleep_duration>(sec).count();
while (std::isgreater(sleep_time, elapsed_time)) {
end = std::chrono::steady_clock::now();
elapsed_time = std::chrono::duration_cast<sleep_duration>(end - start).count();
}
}
We can use it with any std::chrono::duration
type (By default it takes std::chrono::seconds
as argument). For example,
#include <cmath>
#include <chrono>
template <typename rep = std::chrono::seconds::rep,
typename period = std::chrono::seconds::period>
void sleep(std::chrono::duration<rep, period> sec)
{
using sleep_duration = std::chrono::duration<long double, std::nano>;
std::chrono::steady_clock::time_point start = std::chrono::steady_clock::now();
std::chrono::steady_clock::time_point end = std::chrono::steady_clock::now();
long double elapsed_time =
std::chrono::duration_cast<sleep_duration>(end - start).count();
long double sleep_time =
std::chrono::duration_cast<sleep_duration>(sec).count();
while (std::isgreater(sleep_time, elapsed_time)) {
end = std::chrono::steady_clock::now();
elapsed_time = std::chrono::duration_cast<sleep_duration>(end - start).count();
}
}
using namespace std::chrono_literals;
int main (void) {
std::chrono::steady_clock::time_point start1 = std::chrono::steady_clock::now();
sleep(5s); // sleep for 5 seconds
std::chrono::steady_clock::time_point end1 = std::chrono::steady_clock::now();
std::cout << std::setprecision(9) << std::fixed;
std::cout << "Elapsed time was: " << std::chrono::duration_cast<std::chrono::seconds>(end1-start1).count() << "s\n";
std::chrono::steady_clock::time_point start2 = std::chrono::steady_clock::now();
sleep(500000ns); // sleep for 500000 nano seconds/500 micro seconds
// same as writing: sleep(500us)
std::chrono::steady_clock::time_point end2 = std::chrono::steady_clock::now();
std::cout << "Elapsed time was: " << std::chrono::duration_cast<std::chrono::microseconds>(end2-start2).count() << "us\n";
return 0;
}
For more information, visit https://en.cppreference.com/w/cpp/header/chrono
and see this cppcon talk of Howard Hinnant, https://www.youtube.com/watch?v=P32hvk8b13M.
He has two more talks on chrono library. And you can always use the library function, std::this_thread::sleep_for
Note: Outputs may not be accurate. So, don't expect it to give exact timings.
You can use the Attach To Process function, rather than pressing F5.
This can also allow you to navigate through known working sections without the slowdown of VS debugger loaded underneath.
Use the setAttribute
method:
document.getElementById('item1').setAttribute('data', "icon: 'base2.gif', url: 'output.htm', target: 'AccessPage', output: '1'");
But you really should be using data followed with a dash and with its property, like:
<li ... data-icon="base.gif" ...>
And to do it in JS use the dataset
property:
document.getElementById('item1').dataset.icon = "base.gif";
Chang your application level build.gradle file's:
implementation 'com.android.support:appcompat-v7:23.1.0'
to
implementation 'com.android.support:appcompat-v7:23.0.1'
The quick answer the the Question is no you can't, because of Java generic type erasure.
The longer answer would be that if you have created your list like this:
new ArrayList<SpideMan>(){}
Then in this case the generic type is preserved in the generic superclass of the new anonymous class above.
Not that I recommend doing this with lists, but it is a listener implementation:
new Listener<Type>() { public void doSomething(Type t){...}}
And since extrapolating the generic types of super classes and super interfaces change between JVMs, the generic solution is not as straight forward as some answers might suggest.
Actually, all of those examples on the web wherein the common content/file type like "js", "css", "img", etc is been used as library name are misleading.
To start, let's look at how existing JSF implementations like Mojarra and MyFaces and JSF component libraries like PrimeFaces and OmniFaces use it. No one of them use resource libraries this way. They use it (under the covers, by @ResourceDependency
or UIViewRoot#addComponentResource()
) the following way:
<h:outputScript library="javax.faces" name="jsf.js" />
<h:outputScript library="primefaces" name="jquery/jquery.js" />
<h:outputScript library="omnifaces" name="omnifaces.js" />
<h:outputScript library="omnifaces" name="fixviewstate.js" />
<h:outputScript library="omnifaces.combined" name="[dynamicname].js" />
<h:outputStylesheet library="primefaces" name="primefaces.css" />
<h:outputStylesheet library="primefaces-aristo" name="theme.css" />
<h:outputStylesheet library="primefaces-vader" name="theme.css" />
It should become clear that it basically represents the common library/module/theme name where all of those resources commonly belong to.
This way it's so much easier to specify and distinguish where those resources belong to and/or are coming from. Imagine that you happen to have a primefaces.css
resource in your own webapp wherein you're overriding/finetuning some default CSS of PrimeFaces; if PrimeFaces didn't use a library name for its own primefaces.css
, then the PrimeFaces own one wouldn't be loaded, but instead the webapp-supplied one, which would break the look'n'feel.
Also, when you're using a custom ResourceHandler
, you can also apply more finer grained control over resources coming from a specific library when library
is used the right way. If all component libraries would have used "js" for all their JS files, how would the ResourceHandler
ever distinguish if it's coming from a specific component library? Examples are OmniFaces CombinedResourceHandler
and GraphicResourceHandler
; check the createResource()
method wherein the library is checked before delegating to next resource handler in chain. This way they know when to create CombinedResource
or GraphicResource
for the purpose.
Noted should be that RichFaces did it wrong. It didn't use any library
at all and homebrewed another resource handling layer over it and it's therefore impossible to programmatically identify RichFaces resources. That's exactly the reason why OmniFaces CombinedResourceHander
had to introduce a reflection-based hack in order to get it to work anyway with RichFaces resources.
Your own webapp does not necessarily need a resource library. You'd best just omit it.
<h:outputStylesheet name="css/style.css" />
<h:outputScript name="js/script.js" />
<h:graphicImage name="img/logo.png" />
Or, if you really need to have one, you can just give it a more sensible common name, like "default" or some company name.
<h:outputStylesheet library="default" name="css/style.css" />
<h:outputScript library="default" name="js/script.js" />
<h:graphicImage library="default" name="img/logo.png" />
Or, when the resources are specific to some master Facelets template, you could also give it the name of the template, so that it's easier to relate each other. In other words, it's more for self-documentary purposes. E.g. in a /WEB-INF/templates/layout.xhtml
template file:
<h:outputStylesheet library="layout" name="css/style.css" />
<h:outputScript library="layout" name="js/script.js" />
And a /WEB-INF/templates/admin.xhtml
template file:
<h:outputStylesheet library="admin" name="css/style.css" />
<h:outputScript library="admin" name="js/script.js" />
For a real world example, check the OmniFaces showcase source code.
Or, when you'd like to share the same resources over multiple webapps and have created a "common" project for that based on the same example as in this answer which is in turn embedded as JAR in webapp's /WEB-INF/lib
, then also reference it as library (name is free to your choice; component libraries like OmniFaces and PrimeFaces also work that way):
<h:outputStylesheet library="common" name="css/style.css" />
<h:outputScript library="common" name="js/script.js" />
<h:graphicImage library="common" name="img/logo.png" />
Another main advantage is that you can apply resource library versioning the right way on resources provided by your own webapp (this doesn't work for resources embedded in a JAR). You can create a direct child subfolder in the library folder with a name in the \d+(_\d+)*
pattern to denote the resource library version.
WebContent
|-- resources
| `-- default
| `-- 1_0
| |-- css
| | `-- style.css
| |-- img
| | `-- logo.png
| `-- js
| `-- script.js
:
When using this markup:
<h:outputStylesheet library="default" name="css/style.css" />
<h:outputScript library="default" name="js/script.js" />
<h:graphicImage library="default" name="img/logo.png" />
This will generate the following HTML with the library version as v
parameter:
<link rel="stylesheet" type="text/css" href="/contextname/javax.faces.resource/css/style.css.xhtml?ln=default&v=1_0" />
<script type="text/javascript" src="/contextname/javax.faces.resource/js/script.js.xhtml?ln=default&v=1_0"></script>
<img src="/contextname/javax.faces.resource/img/logo.png.xhtml?ln=default&v=1_0" alt="" />
So, if you have edited/updated some resource, then all you need to do is to copy or rename the version folder into a new value. If you have multiple version folders, then the JSF ResourceHandler
will automatically serve the resource from the highest version number, according to numerical ordering rules.
So, when copying/renaming resources/default/1_0/*
folder into resources/default/1_1/*
like follows:
WebContent
|-- resources
| `-- default
| |-- 1_0
| | :
| |
| `-- 1_1
| |-- css
| | `-- style.css
| |-- img
| | `-- logo.png
| `-- js
| `-- script.js
:
Then the last markup example would generate the following HTML:
<link rel="stylesheet" type="text/css" href="/contextname/javax.faces.resource/css/style.css.xhtml?ln=default&v=1_1" />
<script type="text/javascript" src="/contextname/javax.faces.resource/js/script.js.xhtml?ln=default&v=1_1"></script>
<img src="/contextname/javax.faces.resource/img/logo.png.xhtml?ln=default&v=1_1" alt="" />
This will force the webbrowser to request the resource straight from the server instead of showing the one with the same name from the cache, when the URL with the changed parameter is been requested for the first time. This way the endusers aren't required to do a hard refresh (Ctrl+F5 and so on) when they need to retrieve the updated CSS/JS resource.
Please note that library versioning is not possible for resources enclosed in a JAR file. You'd need a custom ResourceHandler
. See also How to use JSF versioning for resources in jar.
right way is
import datetime
isinstance(x, datetime.date)
When I try this on my machine it works fine. You need to look into why datetime.date
is not a class. Are you perhaps masking it with something else? or not referencing it correctly for your import?
First, you want to use
model <- lm(Total ~ Coupon, data=df)
not model <-lm(df$Total ~ df$Coupon, data=df)
.
Second, by saying lm(Total ~ Coupon)
, you are fitting a model that uses Total
as the response variable, with Coupon
as the predictor. That is, your model is of the form Total = a + b*Coupon
, with a
and b
the coefficients to be estimated. Note that the response goes on the left side of the ~
, and the predictor(s) on the right.
Because of this, when you ask R to give you predicted values for the model, you have to provide a set of new predictor values, ie new values of Coupon
, not Total
.
Third, judging by your specification of newdata
, it looks like you're actually after a model to fit Coupon
as a function of Total
, not the other way around. To do this:
model <- lm(Coupon ~ Total, data=df)
new.df <- data.frame(Total=c(79037022, 83100656, 104299800))
predict(model, new.df)
TreeMap, which is an implementation of the SortedMap interface, would work.
How do I use it ?
Map<Float, MyObject> map = new TreeMap<Float, MyObject>();
One way of reducing the heap sice of a system with limited resources may be to play around with the -XX:MaxHeapFreeRatio variable. This is usually set to 70, and is the maximum percentage of the heap that is free before the GC shrinks it. Setting it to a lower value, and you will see in eg the jvisualvm profiler that a smaller heap sice is usually used for your program.
EDIT: To set small values for -XX:MaxHeapFreeRatio you must also set -XX:MinHeapFreeRatio Eg
java -XX:MinHeapFreeRatio=10 -XX:MaxHeapFreeRatio=25 HelloWorld
EDIT2: Added an example for a real application that starts and does the same task, one with default parameters and one with 10 and 25 as parameters. I didn't notice any real speed difference, although java in theory should use more time to increase the heap in the latter example.
At the end, max heap is 905, used heap is 378
At the end, max heap is 722, used heap is 378
This actually have some inpact, as our application runs on a remote desktop server, and many users may run it at once.
Append a semicolon to the following line to fix the issue.
font-family: Arial, Helvetica, sans-serif;
This is the recommended usage for newer Java ( >Java 6)
String[] myArray = myArrayList.toArray(new String[0]);
In older Java versions using pre-sized array was recommended, as the reflection call which is necessary to create an array of proper size was quite slow. However since late updates of OpenJDK 6 this call was intrinsified, making the performance of the empty array version the same and sometimes even better, compared to the pre-sized version. Also passing pre-sized array is dangerous for a concurrent or synchronized collection as a data race is possible between the size and toArray call which may result in extra nulls at the end of the array, if the collection was concurrently shrunk during the operation. This inspection allows to follow the uniform style: either using an empty array (which is recommended in modern Java) or using a pre-sized array (which might be faster in older Java versions or non-HotSpot based JVMs).
There's also MSMQ (Microsoft Message Queueing) which can operate across networks as well as on a local computer. Although there are better ways to communicate it's worth looking into: https://msdn.microsoft.com/en-us/library/ms711472(v=vs.85).aspx
In case you are using the annotation method for filter definition (as opposed to defining them in the web.xml
), you can do so by just putting an array of mappings in the @WebFilter
annotation:
/**
* Filter implementation class LoginFilter
*/
@WebFilter(urlPatterns = { "/faces/Html/Employee","/faces/Html/Admin", "/faces/Html/Supervisor"})
public class LoginFilter implements Filter {
...
And just as an FYI, this same thing works for servlets using the servlet annotation too:
/**
* Servlet implementation class LoginServlet
*/
@WebServlet({"/faces/Html/Employee", "/faces/Html/Admin", "/faces/Html/Supervisor"})
public class LoginServlet extends HttpServlet {
...
static means local for compilation unit (i.e. a single C++ source code file), or in other words it means it is not added to a global namespace. you can have multiple static variables in different c++ source code files with the same name and no name conflicts.
const is just constant, meaning can't be modified.
You could use inline styles and define the width in the <th>
tag. Make it so that the sum of the widths = 100%.
<tr>
<th style="width:10%">Size</th>
<th style="width:30%">Bust</th>
<th style="width:50%">Waist</th>
<th style="width:10%">Hips</th>
</tr>
Typically using inline styles is not ideal, however this does provide flexibility because you can get very specific and granular with exact widths.
You can just use something like this to have two way data binding:
<input type="checkbox" [checked]="model.property" (change)="model.property = !model.consent_obtained_ind">
One more answer: since you said you need to validate files you are generating (writing), you might want to validate content while you are writing, instead of first writing, then reading back for validation. You can probably do that with JDK API for Xml validation, if you use SAX-based writer: if so, just link in validator by calling 'Validator.validate(source, result)', where source comes from your writer, and result is where output needs to go.
Alternatively if you use Stax for writing content (or a library that uses or can use stax), Woodstox can also directly support validation when using XMLStreamWriter. Here's a blog entry showing how that is done:
We can do this using JavaScript, no need of jQuery. Just pass the changed element and let JavaScript handle it.
HTML
<form id="myform">
syn<input type="checkbox" name="checkfield" id="g01-01" onchange="doalert(this)"/>
</form>
JS
function doalert(checkboxElem) {
if (checkboxElem.checked) {
alert ("hi");
} else {
alert ("bye");
}
}
Least code would be:
>>> s = set([1, 2, 3])
>>> list(s)[0]
1
Obviously this would create a new list which contains each member of the set, so not great if your set is very large.
The sound of the french fou, (like: amour fou) [crazy] written in english, would be foo, wouldn't it. Else furchtbar -> foobar -> foo, bar -> barfoo -> barfuß (barefoot). Just fou. A foot without teeth.
I agree with all, who mentioned it means: nothing interesting, just something, usually needed to complete a statement/expression.
What do you mean by nothing?
<a href='about:blank'>blank page</a>
or
<a href='whatever' onclick='return false;'>won't navigate</a>
Please try
sudo a2enmod rewrite
or use correct apache restart command
sudo /etc/init.d/apache2 restart
If you are simply checking for the existence of an ID, there is no need to go into jQuery, you could simply:
if(document.getElementById("yourid") !== null)
{
}
getElementById
returns null
if it can't be found.
If however you plan to use the jQuery object later i'd suggest:
$(document).ready(function() {
var $myDiv = $('#DivID');
if ( $myDiv.length){
//you can now reuse $myDiv here, without having to select it again.
}
});
A selector always returns a jQuery object, so there shouldn't be a need to check against null
(I'd be interested if there is an edge case where you need to check for null
- but I don't think there is).
If the selector doesn't find anything then length === 0
which is "falsy" (when converted to bool its false). So if it finds something then it should be "truthy" - so you don't need to check for > 0. Just for it's "truthyness"
If you are using a Form Control
, you can get the same property as ActiveX
by using OLEFormat.Object
property of the Shape Object
. Better yet assign it in a variable declared as OptionButton to get the Intellisense kick in.
Dim opt As OptionButton
With Sheets("Sheet1") ' Try to be always explicit
Set opt = .Shapes("Option Button 1").OLEFormat.Object ' Form Control
Debug.Pring opt.Value ' returns 1 (true) or -4146 (false)
End With
But then again, you really don't need to know the value.
If you use Form Control
, you associate a Macro
or sub routine with it which is executed when it is selected. So you just need to set up a sub routine that identifies which button is clicked and then execute a corresponding action for it.
For example you have 2 Form Control
Option Buttons.
Sub CheckOptions()
Select Case Application.Caller
Case "Option Button 1"
' Action for option button 1
Case "Option Button 2"
' Action for option button 2
End Select
End Sub
In above code, you have only one sub routine assigned to both option buttons.
Then you test which called the sub routine by checking Application.Caller
.
This way, no need to check whether the option button value is true or false.
WinMount provides an easiest way to mount VMDK as a virtual disk. You can read or write to the vmdk file without loading the virtual system. Here shows you how to do: http://www.winmount.com/mount_vmdk.html
Servlet - it's java server side layer.
In .NET framework 3.5 and above you can use Enumerable.GroupBy
which returns an enumerable of enumerables of duplicate keys, and then filter out any of the enumerables that have a Count of <=1, then select their keys to get back down to a single enumerable:
var duplicateKeys = list.GroupBy(x => x)
.Where(group => group.Count() > 1)
.Select(group => group.Key);
This article talks about setting the timeouts on the server level. http://www.coderanch.com/t/364207/Servlets/java/Servlet-Timeout-two-ways
What is causing the application to go into infinite loop? If you are opening connections to other resources, you might want to put timeouts on those connections and sending appropriate response when those time out occurs.
$("body").css("background","green"); //jQuery
document.body.style.backgroundColor = "green"; //javascript
so many ways are there I think it is very easy and simple
I was having same error In ReactJS statless function while using ReactJs Hook useState. I wanted to set state of an object array , so if I use the following way
const [items , setItems] = useState([]);
and update the state like this:
const item = { id : new Date().getTime() , text : 'New Text' };
setItems([ item , ...items ]);
I was getting error:
Argument of type '{ id: number; text: any }' is not assignable to parameter of type 'never'
but if do it like this,
const [items , setItems] = useState([{}]);
Error is gone but there is an item at 0 index which don't have any data(don't want that).
so the solution I found is:
const [items , setItems] = useState([] as any);
hdl = open("C:/name/MyDocuments/numbers", 'r')
milist = hdl.readlines()
hdl.close()
You can also use an exit variable if you want your code to be a bit more readable:
DECLARE @Flag int = 0
DECLARE @Done bit = 0
WHILE @Done = 0 BEGIN
SET @Flag = @Flag + 1
PRINT @Flag
IF @Flag >= 5 SET @Done = 1
END
This would probably be more relevant when you have a more complicated loop and are trying to keep track of the logic. As stated loops are expensive so try and use other methods if you can.
This simple filtering can be achieved in many ways with Python. The best approach is to use "list comprehensions" as follows:
>>> lst = ['a', 'ab', 'abc', 'bac']
>>> [k for k in lst if 'ab' in k]
['ab', 'abc']
Another way is to use the filter
function. In Python 2:
>>> filter(lambda k: 'ab' in k, lst)
['ab', 'abc']
In Python 3, it returns an iterator instead of a list, but you can cast it:
>>> list(filter(lambda k: 'ab' in k, lst))
['ab', 'abc']
Though it's better practice to use a comprehension.
You can use GCD (in the example with a 10 second delay):
let triggerTime = (Int64(NSEC_PER_SEC) * 10)
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, triggerTime), dispatch_get_main_queue(), { () -> Void in
self.functionToCall()
})
DispatchQueue.main.asyncAfter(deadline: .now() + 10.0, execute: {
self.functionToCall()
})
DispatchQueue.main.asyncAfter(deadline: .now() + 10.0) {
//call any function
}
I solved this problem on windows setting up sdk path in configuration option.
//Create our own namespaces for the output
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
//Add an empty namespace and empty value
ns.Add("", "");
//Create the serializer
XmlSerializer slz = new XmlSerializer(someType);
//Serialize the object with our own namespaces (notice the overload)
slz.Serialize(myXmlTextWriter, someObject, ns)
The reason that you get the 404 File Not Found
error, is that your path to CSS given as a value to the href
attribute is missing context path.
An HTTP request URL contains the following parts:
http://[host]:[port][request-path]?[query-string]
The request path is further composed of the following elements:
Context path: A concatenation of a forward slash (/) with the context
root of the servlet's web application. Example: http://host[:port]/context-root[/url-pattern]
Servlet path: The path section that corresponds to the component alias that activated this request. This path starts with a forward slash (/).
Path info: The part of the request path that is not part of the context path or the servlet path.
Read more here.
There are several solutions to your problem, here are some of them:
<c:url>
tag from JSTLIn my Java web applications I usually used <c:url>
tag from JSTL when defining the path to CSS/JavaScript/image and other static resources. By doing so you can be sure that those resources are referenced always relative to the application context (context path).
If you say, that your CSS is located inside WebContent folder, then this should work:
<link type="text/css" rel="stylesheet" href="<c:url value="/globalCSS.css" />" />
The reason why it works is explained in the "JavaServer Pages™ Standard Tag Library" version 1.2 specification chapter 7.5 (emphasis mine):
7.5 <c:url>
Builds a URL with the proper rewriting rules applied.
...
The URL must be either an absolute URL starting with a scheme (e.g. "http:// server/context/page.jsp") or a relative URL as defined by JSP 1.2 in JSP.2.2.1 "Relative URL Specification". As a consequence, an implementation must prepend the context path to a URL that starts with a slash (e.g. "/page2.jsp") so that such URLs can be properly interpreted by a client browser.
NOTE
Don't forget to use Taglib directive in your JSP to be able to reference JSTL tags. Also see an example JSP page here.
An alternative solution is using Expression Language (EL) to add application context:
<link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath}/globalCSS.css" />
Here we have retrieved the context path from the request object. And to access the request object we have used the pageContext implicit object.
<c:set>
tag from JSTLDISCLAIMER
The idea of this solution was taken from here.
To make accessing the context path more compact than in the solution ?2, you can first use the JSTL <c:set>
tag, that sets the value of an EL variable or the property of an EL variable in any of the JSP scopes (page, request, session, or application) for later access.
<c:set var="root" value="${pageContext.request.contextPath}"/>
...
<link type="text/css" rel="stylesheet" href="${root}/globalCSS.css" />
IMPORTANT NOTE
By default, in order to set the variable in such manner, the JSP that contains this set tag must be accessed at least once (including in case of setting the value in the application scope using scope attribute, like <c:set var="foo" value="bar" scope="application" />
), before using this new variable. For instance, you can have several JSP files where you need this variable. So you must ether a) both set the new variable holding context path in the application scope AND access this JSP first, before using this variable in other JSP files, or b) set this context path holding variable in EVERY JSP file, where you need to access to it.
The more effective way to make accessing the context path more compact is to set a variable that will hold the context path and store it in the application scope using a Listener. This solution is similar to solution ?3, but the benefit is that now the variable holding context path is set right at the start of the web application and is available application wide, no need for additional steps.
We need a class that implements ServletContextListener interface. Here is an example of such class:
package com.example.listener;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;
@WebListener
public class AppContextListener implements ServletContextListener {
@Override
public void contextInitialized(ServletContextEvent event) {
ServletContext sc = event.getServletContext();
sc.setAttribute("ctx", sc.getContextPath());
}
@Override
public void contextDestroyed(ServletContextEvent event) {}
}
Now in a JSP we can access this global variable using EL:
<link type="text/css" rel="stylesheet" href="${ctx}/globalCSS.css" />
NOTE
@WebListener annotation is available since Servlet version 3.0. If you use a servlet container or application server that supports older Servlet specifications, remove the @WebServlet annotation and instead configure the listener in the deployment descriptor (web.xml). Here is an example of web.xml file for the container that supports maximum Servlet version 2.5 (other configurations are omitted for the sake of brevity):
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
...
<listener>
<listener-class>com.example.listener.AppContextListener</listener-class>
</listener>
...
</webapp>
As suggested by user @gavenkoa you can also use scriptlets like this:
<%= request.getContextPath() %>
For such a small thing it is probably OK, just note that generally the use of scriptlets in JSP is discouraged.
I personally prefer either the first solution (used it in my previous projects most of the time) or the second, as they are most clear, intuitive and unambiguous (IMHO). But you choose whatever suits you most.
You can deploy your web app as the default application (i.e. in the default root context), so it can be accessed without specifying context path. For more info read the "Update" section here.
Or
public class Section
{
public String Head { get; set; }
private readonly List<string> _subHead = new List<string>();
private readonly List<string> _content = new List<string>();
public IEnumerable<string> SubHead { get { return _subHead; } }
public IEnumerable<string> Content { get { return _content; } }
public void AddContent(String argValue)
{
_content.Add(argValue);
}
public void AddSubHeader(String argValue)
{
_subHead.Add(argValue);
}
}
All depends on how much of the implementaton of content and subhead you want to hide.
Use a regex to extract the "video id" after watch?v=
Store the video id in a variable, let's call this variable vid
Get the embed code from a random video, remove the video id from the embed code and replace it with the vid
you got.
I don't know how to deal with regex in php, but it shouldn't be too hard
Here's example code in python:
>>> ytlink = 'http://www.youtube.com/watch?v=7-dXUEbBz70'
>>> import re
>>> vid = re.findall( r'v\=([\-\w]+)', ytlink )[0]
>>> vid
'7-dXUEbBz70'
>>> print '''<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/%s&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/%s&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>''' % (vid,vid)
<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/7-dXUEbBz70&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/7-dXUEbBz70&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>
>>>
The regular expression v\=([\-\w]+)
captures a (sub)string of characters and dashes that comes after v=
I tried the option: Tools > Preferences > Syntax coloring > dark spyder is not working.
You should rather use the path: Tools > Preferences > Syntax coloring > spyder then begin modifications as you want your editor to appear
br { padding: 1px 8px; border-bottom: 1px dashed #000 }
renders as below in IE8... not a lot of use in just one browser though.
(N.B. I'm using IE 8.0.7100 (on Win7 RC) if that makes any difference)
Also,
br:after { content: "..." }
br { content: "" }`
or,
br:after {
border: 1px none black;
border-bottom-style: dashed;
content: "";
padding: 0 6px 0;
}
br { content: "" }
gives a dashed line in Chrome 2 / Safari 4b but loses the line break which (unless anyone can come up with a way to reintroduce that) makes it less than useless.
e.g.
IE8 test, Chrome/Safari test and another
The worst language? BancStar, hands down.
3,000 predefined variables, all numbered, all global. No variable declaration, no initialization. Half of them, scattered over the range, reserved for system use, but you can use them at your peril. A hundred or so are automatically filled in as a result of various operations, and no list of which ones those are. They all fit in 38k bytes, and there is no protection whatsoever for buffer overflow. The system will cheerfully let users put 20 bytes in a ten byte field if you declared the length of an input field incorrectly. The effects are unpredictable, to say the least.
This is a language that will let you declare a calculated gosub or goto; due to its limitations, this is frequently necessary. Conditionals can be declared forward or reverse. Picture an "If" statement that terminates 20 lines before it begins.
The return stack is very shallow, (20 Gosubs or so) and since a user's press of any function key kicks off a different subroutine, you can overrun the stack easily. The designers thoughtfully included a "Clear Gosubs" command to nuke the stack completely in order to fix that problem and to make sure you would never know exactly what the program would do next.
There is much more. Tens of thousands of lines of this Lovecraftian horror.
Another use of BST over Heap; because of an important difference :
Use of BST over a Heap: Now, Lets say we use a data structure to store landing time of flights. We cannot schedule a flight to land if difference in landing times is less than 'd'. And assume many flights have been scheduled to land in a data structure(BST or Heap).
Now, we want to schedule another Flight which will land at t. Hence, we need to calculate difference of t with its successor and predecessor (should be >d). Thus, we will need a BST for this, which does it fast i.e. in O(logn) if balanced.
EDITed:
Sorting BST takes O(n) time to print elements in sorted order (Inorder traversal), while Heap can do it in O(n logn) time. Heap extracts min element and re-heapifies the array, which makes it do the sorting in O(n logn) time.
I had a similar issue to solve in an app and I used the following method. I didn't use notifications for handling the navigation.
I have three storyboards in the app.
My initial storyboard in the app is Splash screen storyboard. I have navigation controller as the root of login and tab bar storyboard to handle view controller navigations.
I created a Navigator class to handle the app navigation and it looks like this:
class Navigator: NSObject {
static func moveTo(_ destinationViewController: UIViewController, from sourceViewController: UIViewController, transitionStyle: UIModalTransitionStyle? = .crossDissolve, completion: (() -> ())? = nil) {
DispatchQueue.main.async {
if var topController = UIApplication.shared.keyWindow?.rootViewController {
while let presentedViewController = topController.presentedViewController {
topController = presentedViewController
}
destinationViewController.modalTransitionStyle = (transitionStyle ?? nil)!
sourceViewController.present(destinationViewController, animated: true, completion: completion)
}
}
}
}
Let's look at the possible scenarios:
Since I have navigation controller as the root, I instantiate the navigation controller as initial view controller.
let loginSB = UIStoryboard(name: "splash", bundle: nil)
let loginNav = loginSB.instantiateInitialViewcontroller() as! UINavigationController
Navigator.moveTo(loginNav, from: self)
This removes the slpash storyboard from app window's root and replaces it with login storyboard.
From login storyboard, when the user is successfully logged in, I save the user data to User Defaults and initialize a UserData singleton to access the user details. Then Tab bar storyboard is loaded using the navigator method.
Let tabBarSB = UIStoryboard(name: "tabBar", bundle: nil)
let tabBarNav = tabBarSB.instantiateInitialViewcontroller() as! UINavigationController
Navigator.moveTo(tabBarNav, from: self)
Now the user signs out from the settings screen in tab bar. I clear all the saved user data and navigate to login screen.
let loginSB = UIStoryboard(name: "splash", bundle: nil)
let loginNav = loginSB.instantiateInitialViewcontroller() as! UINavigationController
Navigator.moveTo(loginNav, from: self)
When user launches the app, Splash screen will be loaded. I check if user is logged in and access the user data from User Defaults. Then initialize the UserData singleton and shows tab bar instead of login screen.
You can always write it like this
String[] errorSoon = {"Hello","World"};
For (int x=0;x<errorSoon.length;x++) // in this way u create a for loop that would like display the elements which are inside the array errorSoon.oh errorSoon.length is the same as errorSoon<2
{
System.out.println(" "+errorSoon[x]); // this will output those two words, at the top hello and world at the bottom of hello.
}
Re the solution for SqlBulkCopy:
I used the StreamReader to convert and process the text file. The result was a list of my object.
I created a class than takes Datatable
or a List<T>
and a Buffer size (CommitBatchSize
). It will convert the list to a data table using an extension (in the second class).
It works very fast. On my PC, I am able to insert more than 10 million complicated records in less than 10 seconds.
Here is the class:
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace DAL
{
public class BulkUploadToSql<T>
{
public IList<T> InternalStore { get; set; }
public string TableName { get; set; }
public int CommitBatchSize { get; set; }=1000;
public string ConnectionString { get; set; }
public void Commit()
{
if (InternalStore.Count>0)
{
DataTable dt;
int numberOfPages = (InternalStore.Count / CommitBatchSize) + (InternalStore.Count % CommitBatchSize == 0 ? 0 : 1);
for (int pageIndex = 0; pageIndex < numberOfPages; pageIndex++)
{
dt= InternalStore.Skip(pageIndex * CommitBatchSize).Take(CommitBatchSize).ToDataTable();
BulkInsert(dt);
}
}
}
public void BulkInsert(DataTable dt)
{
using (SqlConnection connection = new SqlConnection(ConnectionString))
{
// make sure to enable triggers
// more on triggers in next post
SqlBulkCopy bulkCopy =
new SqlBulkCopy
(
connection,
SqlBulkCopyOptions.TableLock |
SqlBulkCopyOptions.FireTriggers |
SqlBulkCopyOptions.UseInternalTransaction,
null
);
// set the destination table name
bulkCopy.DestinationTableName = TableName;
connection.Open();
// write the data in the "dataTable"
bulkCopy.WriteToServer(dt);
connection.Close();
}
// reset
//this.dataTable.Clear();
}
}
public static class BulkUploadToSqlHelper
{
public static DataTable ToDataTable<T>(this IEnumerable<T> data)
{
PropertyDescriptorCollection properties =
TypeDescriptor.GetProperties(typeof(T));
DataTable table = new DataTable();
foreach (PropertyDescriptor prop in properties)
table.Columns.Add(prop.Name, Nullable.GetUnderlyingType(prop.PropertyType) ?? prop.PropertyType);
foreach (T item in data)
{
DataRow row = table.NewRow();
foreach (PropertyDescriptor prop in properties)
row[prop.Name] = prop.GetValue(item) ?? DBNull.Value;
table.Rows.Add(row);
}
return table;
}
}
}
Here is an example when I want to insert a List of my custom object List<PuckDetection>
(ListDetections
):
var objBulk = new BulkUploadToSql<PuckDetection>()
{
InternalStore = ListDetections,
TableName= "PuckDetections",
CommitBatchSize=1000,
ConnectionString="ENTER YOU CONNECTION STRING"
};
objBulk.Commit();
The BulkInsert
class can be modified to add column mapping if required. Example you have an Identity key as first column.(this assuming that the column names in the datatable are the same as the database)
//ADD COLUMN MAPPING
foreach (DataColumn col in dt.Columns)
{
bulkCopy.ColumnMappings.Add(col.ColumnName, col.ColumnName);
}
If the string is from a trusted source, you could use eval
then JSON.stringify
the result. Like this:
var str = "{ hello: 'world', places: ['Africa', 'America', 'Asia', 'Australia'] }";
var json = JSON.stringify(eval("(" + str + ")"));
Note that when you eval
an object literal, it has to be wrapped in parentheses, otherwise the braces are parsed as a block instead of an object.
I also agree with the comments under the question that it would be much better to just encode the object in valid JSON to begin with and avoid having to parse, encode, then presumably parse it again. HTML supports single-quoted attributes (just be sure to HTML-encode any single quotes inside strings).
If anyone wants permanent redirection from one page /a
to another page /b
We can use redirect:
option added in the router.js
. For example if we want to redirect the users always to a separate page when he types the root or base url /
:
const router = new Router({
mode: "history",
base: process.env.BASE_URL,
routes: [
{
path: "/",
redirect: "/someOtherPage",
name: "home",
component: Home,
// () =>
// import(/* webpackChunkName: "home" */ "./views/pageView/home.vue"),
},
]
You can use tuples like this: SELECT * FROM table WHERE (Col, 1) IN ((123,1),(123,1),(222,1),....)
There are no restrictions on number of these. It compares pairs.
Step 1: Get the latest aws-java-sdk
<!-- https://mvnrepository.com/artifact/org.apache.hadoop/hadoop-aws -->
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>1.11.660</version>
</dependency>
Step 2: The correct imports
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Region;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.ListObjectsRequest;
import com.amazonaws.services.s3.model.ObjectListing;
If you are sure the bucket exists, Specified key does not exists error
would mean the bucketname is not spelled correctly ( contains slash or special characters). Refer the documentation for naming convention.
The document quotes:
If the requested object is available in the bucket and users are still getting the 404 NoSuchKey error from Amazon S3, check the following:
Confirm that the request matches the object name exactly, including the capitalization of the object name. Requests for S3 objects are case sensitive. For example, if an object is named myimage.jpg, but Myimage.jpg is requested, then requester receives a 404 NoSuchKey error. Confirm that the requested path matches the path to the object. For example, if the path to an object is awsexamplebucket/Downloads/February/Images/image.jpg, but the requested path is awsexamplebucket/Downloads/February/image.jpg, then the requester receives a 404 NoSuchKey error. If the path to the object contains any spaces, be sure that the request uses the correct syntax to recognize the path. For example, if you're using the AWS CLI to download an object to your Windows machine, you must use quotation marks around the object path, similar to: aws s3 cp "s3://awsexamplebucket/Backup Copy Job 4/3T000000.vbk". Optionally, you can enable server access logging to review request records in further detail for issues that might be causing the 404 error.
AWSCredentials credentials = new BasicAWSCredentials(AWS_ACCESS_KEY_ID, AWS_SECRET_KEY);
AmazonS3 s3Client = AmazonS3ClientBuilder.standard().withRegion(Regions.US_EAST_1).build();
ObjectListing objects = s3Client.listObjects("bigdataanalytics");
System.out.println(objects.getObjectSummaries());
The answers here work to open the page in the same browser window/tab.
However, I wanted the page to open in a new window/tab when they click a button. (tab/window decision depends on the user's browser setting)
So here is how it worked to open the page in new tab/window:
<button type="button" onclick="window.open('http://www.example.com/', '_blank');">View Example Page</button>
It doesn't have to be a button, you can use anywhere. Notice the _blank that is used to open in new tab/window.
Here is another simple example in pure JS using className and binding event to it.
var eraseable = document.getElementsByClassName("eraseable");_x000D_
_x000D_
for (var i = 0; i < eraseable.length; i++) {_x000D_
eraseable[i].addEventListener('click', delFunction, false); //bind delFunction on click to eraseables_x000D_
}_x000D_
_x000D_
function delFunction(){ _x000D_
var msg = confirm("Are you sure?"); _x000D_
if (msg == true) { _x000D_
this.remove(); //remove the clicked element if confirmed_x000D_
} _x000D_
};
_x000D_
<button class="eraseable">_x000D_
<img class="eraseable" src="http://zelcs.com/wp-content/uploads/2013/02/stackoverflow-logo-dumpster.jpg" style="width:100px;height:auto;">_x000D_
Delete me</button>_x000D_
_x000D_
<button class="eraseable">_x000D_
<img class="eraseable" src="http://zelcs.com/wp-content/uploads/2013/02/stackoverflow-logo-dumpster.jpg" style="width:100px;height:auto;">_x000D_
Delete me</button>_x000D_
_x000D_
<button class="eraseable">_x000D_
<img class="eraseable" src="http://zelcs.com/wp-content/uploads/2013/02/stackoverflow-logo-dumpster.jpg" style="width:100px;height:auto;">_x000D_
Delete me</button>
_x000D_
Today there is a simpler way to do that.
Just create the .env.local file in your root directory and set the variables there. In your case:
REACT_APP_API_KEY = 'my-secret-api-key'
Then you call it en your js file in that way:
process.env.REACT_APP_API_KEY
React supports environment variables since [email protected] .You don't need external package to do that.
*note: I propose .env.local instead of .env because create-react-app add this file to gitignore when create the project.
Files priority:
npm start: .env.development.local, .env.development, .env.local, .env
npm run build: .env.production.local, .env.production, .env.local, .env
npm test: .env.test.local, .env.test, .env (note .env.local is missing)
More info: https://facebook.github.io/create-react-app/docs/adding-custom-environment-variables
32-bit builds of PHP:
64-bit builds of PHP:
Numbers are inclusive.
Note: some 64-bit builds once used 32-bit integers, particularly older Windows builds of PHP
Values outside of these ranges are represented by floating point values, as are non-integer values within these ranges. The interpreter will automatically determine when this switch to floating point needs to happen based on whether the result value of a calculation can't be represented as an integer.
PHP has no support for "unsigned" integers as such, limiting the maximum value of all integers to the range of a "signed" integer.
I made a small benchmark as well. My results were the same. But I need the decode performance. Where I noticed, like a few people above said as well, unserialize
is faster than json_decode
. unserialize
takes roughly 60-70% of the json_decode
time. So the conclusion is fairly simple:
When you need performance in encoding, use json_encode
, when you need performance when decoding, use unserialize
. Because you can not merge the two functions you have to make a choise where you need more performance.
My benchmark in pseudo:
On avarage: unserialize won 96 times over 4 times the json_decode. With an avarage of roughly 1.5ms over 2.5ms.
One thing to remember: If you use a callback, make sure that your selector conforms to the following form:
- (void) image: (UIImage *) image didFinishSavingWithError: (NSError *) error contextInfo: (void *) contextInfo;
Otherwise, you'll crash with an error such as the following:
[NSInvocation setArgument:atIndex:]: index (2) out of bounds [-1, 1]
return Redirect::intended('/');
this will redirect you to default page of your project i.e. start page.
Actually, for the latest JBOSS 7 AS, we need a .dodeploy
marker even for archives. So add a marker to trigger the deployment.
In my case, I added a Hello.war.deployed
file in the same directory and then everything worked fine.
Hope this helps someone!
all you are right! other way to getting !
https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.9.0/locales/bootstrap-datepicker.ru.min.js
You can find out all languages on there https://cdnjs.com/libraries/bootstrap-datepicker
https://labs.maarch.org/maarch/maarchRM/commit/3299d1e7ed25018b48715e16a42d52c288b4da3e
Sometimes, this error occurs when you're trying to target an element that is wrapped in a condition, for example:
<div *ngIf="canShow"> <p #target>Targeted Element</p></div>
In this code, if canShow
is false on render, Angular won't be able to get that element as it won't be rendered, hence the error that comes up.
One of the solutions is to use a display: hidden
on the element instead of the *ngIf
so the element gets rendered but is hidden until your condition is fulfilled.
Read More over at Github
This can be done in in 3 lines of code:
// grab the window frame and adjust it for orientation
UIView *rootView = [[[UIApplication sharedApplication] keyWindow]
rootViewController].view;
CGRect originalFrame = [[UIScreen mainScreen] bounds];
CGRect adjustedFrame = [rootView convertRect:originalFrame fromView:nil];
I fixed this error by inserting these lines of code:
<dependency>
<groupId>junit</groupId> <!-- NOT org.junit here -->
<artifactId>junit-dep</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
into <dependencies> node.
more details refer to: http://mvnrepository.com/artifact/junit/junit-dep/4.8.2
$("select#selectbox option:eq(0)").text()
The 0 index in the "option:eq(0)" can be exchanged for whichever indexed option you'd like to retrieve.
How to configure and troubleshoot <p:fileUpload>
depends on PrimeFaces and JSF version.
The below requirements apply to all PrimeFaces versions:
The enctype
attribute of the <h:form>
needs to be set to multipart/form-data
. When this is absent, the ajax upload may just work, but the general browser behavior is unspecified and dependent on form composition and webbrowser make/version. Just always specify it to be on the safe side.
When using mode="advanced"
(i.e. ajax upload, this is the default), then make sure that you've a <h:head>
in the (master) template. This will ensure that the necessary JavaScript files are properly included. This is not required for mode="simple"
(non-ajax upload), but this would break look'n'feel and functionality of all other PrimeFaces components, so you don't want to miss that anyway.
When using mode="simple"
(i.e. non-ajax upload), then ajax must be disabled on any PrimeFaces command buttons/links by ajax="false"
, and you must use <p:fileUpload value>
with <p:commandButton action>
instead of <p:fileUpload listener>
.
So, if you want (auto) file upload with ajax support (mind the <h:head>
!):
<h:form enctype="multipart/form-data">
<p:fileUpload listener="#{bean.upload}" auto="true" /> // For PrimeFaces version older than 8.x this should be fileUploadListener instead of listener.
</h:form>
public void upload(FileUploadEvent event) {
UploadedFile uploadedFile = event.getFile();
String fileName = uploadedFile.getFileName();
String contentType = uploadedFile.getContentType();
byte[] contents = uploadedFile.getContents(); // Or getInputStream()
// ... Save it, now!
}
Or if you want non-ajax file upload:
<h:form enctype="multipart/form-data">
<p:fileUpload mode="simple" value="#{bean.uploadedFile}" />
<p:commandButton value="Upload" action="#{bean.upload}" ajax="false" />
</h:form>
private transient UploadedFile uploadedFile; // +getter+setter
public void upload() {
String fileName = uploadedFile.getFileName();
String contentType = uploadedFile.getContentType();
byte[] contents = uploadedFile.getContents(); // Or getInputStream()
// ... Save it, now!
}
Do note that ajax-related attributes such as auto
, allowTypes
, update
, onstart
, oncomplete
, etc are ignored in mode="simple"
. So it's needless to specify them in such case.
Also note that you should read the file contents immediately inside the abovementioned methods and not in a different bean method invoked by a later HTTP request. This is because the uploaded file contents is request scoped and thus unavailable in a later/different HTTP request. Any attempt to read it in a later request will most likely end up with java.io.FileNotFoundException
on the temporary file.
Configuration is identical to the 5.x version info below, but if your listener is not called, check if the method attribute is called listener
and not (like with pre 8.x versions) fileUploadListener
.
This does not require any additional configuration if you're using JSF 2.2 and your faces-config.xml
is also declared conform JSF 2.2 version. You do not need the PrimeFaces file upload filter at all and you also do not need the primefaces.UPLOADER
context parameter in web.xml
. In case it's unclear to you how to properly install and configure JSF depending on the target server used, head to How to properly install and configure JSF libraries via Maven? and "Installing JSF" section of our JSF wiki page.
If you're however not using JSF 2.2 yet and you can't upgrade it (should be effortless when already on a Servlet 3.0 compatible container), then you need to manually register the below PrimeFaces file upload filter in web.xml
(it will parse the multi part request and fill the regular request parameter map so that FacesServlet
can continue working as usual):
<filter>
<filter-name>primeFacesFileUploadFilter</filter-name>
<filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>primeFacesFileUploadFilter</filter-name>
<servlet-name>facesServlet</servlet-name>
</filter-mapping>
The <servlet-name>
value of facesServlet
must match exactly the value in the <servlet>
entry of the javax.faces.webapp.FacesServlet
in the same web.xml
. So if it's e.g. Faces Servlet
, then you need to edit it accordingly to match.
The same story as PrimeFaces 5.x applies on 4.x as well.
There's only a potential problem in getting the uploaded file content by UploadedFile#getContents()
. This will return null
when native API is used instead of Apache Commons FileUpload. You need to use UploadedFile#getInputStream()
instead. See also How to insert uploaded image from p:fileUpload as BLOB in MySQL?
Another potential problem with native API will manifest is when the upload component is present in a form on which a different "regular" ajax request is fired which does not process the upload component. See also File upload doesn't work with AJAX in PrimeFaces 4.0/JSF 2.2.x - javax.servlet.ServletException: The request content-type is not a multipart/form-data.
Both problems can also be solved by switching to Apache Commons FileUpload. See PrimeFaces 3.x section for detail.
This version does not support JSF 2.2 / Servlet 3.0 native file upload. You need to manually install Apache Commons FileUpload and explicitly register the file upload filter in web.xml
.
You need the following libraries:
Those must be present in the webapp's runtime classpath. When using Maven, make sure they are at least runtime scoped (default scope of compile is also good). When manually carrying around JARs, make sure they end up in /WEB-INF/lib
folder.
The file upload filter registration detail can be found in PrimeFaces 5.x section here above. In case you're using PrimeFaces 4+ and you'd like to explicitly use Apache Commons FileUpload instead of JSF 2.2 / Servlet 3.0 native file upload, then you need next to the mentioned libraries and filter also the below context param in web.xml
:
<context-param>
<param-name>primefaces.UPLOADER</param-name>
<param-value>commons</param-value><!-- Allowed values: auto, native and commons. -->
</context-param>
In case it still doesn't work, here are another possible causes unrelated to PrimeFaces configuration:
Only if you're using the PrimeFaces file upload filter: There's another Filter
in your webapp which runs before the PrimeFaces file upload filter and has already consumed the request body by e.g. calling getParameter()
, getParameterMap()
, getReader()
, etcetera. A request body can be parsed only once. When you call one of those methods before the file upload filter does its job, then the file upload filter will get an empty request body.
To fix this, you'd need to put the <filter-mapping>
of the file upload filter before the other filter in web.xml
. If the request is not a multipart/form-data
request, then the file upload filter will just continue as if nothing happened. If you use filters that are automagically added because they use annotations (e.g. PrettyFaces), you might need to add explicit ordering via web.xml. See How to define servlet filter order of execution using annotations in WAR
Only if you're using the PrimeFaces file upload filter: There's another Filter
in your webapp which runs before the PrimeFaces file upload filter and has performed a RequestDispatcher#forward()
call. Usually, URL rewrite filters such as PrettyFaces do this. This triggers the FORWARD
dispatcher, but filters listen by default on REQUEST
dispatcher only.
To fix this, you'd need to either put the PrimeFaces file upload filter before the forwarding filter, or to reconfigure the PrimeFaces file upload filter to listen on FORWARD
dispatcher too:
<filter-mapping>
<filter-name>primeFacesFileUploadFilter</filter-name>
<servlet-name>facesServlet</servlet-name>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>
There's a nested <h:form>
. This is illegal in HTML and the browser behavior is unspecified. More than often, the browser won't send the expected data on submit. Make sure that you are not nesting <h:form>
. This is completely regardless of the form's enctype
. Just do not nest forms at all.
If you're still having problems, well, debug the HTTP traffic. Open the webbrowser's developer toolset (press F12 in Chrome/Firebug23+/IE9+) and check the Net/Network section. If the HTTP part looks fine, then debug the JSF code. Put a breakpoint on FileUploadRenderer#decode()
and advance from there.
After you finally got it to work, your next question shall probably be like "How/where do I save the uploaded file?". Well, continue here: How to save uploaded file in JSF.
I'm posting this since I have always been struggling when renaming a project in XCode
.
Renaming the project is good and simple but this doesn't rename the source folder. Here is a step by step of what I have done that worked great in Xcode 4 and 5 thanks to the links below.
REF links:
Rename Project.
Rename Source Folder and other files.
1- Backup your project.
If you are using git, commit any changes, make a copy of the entire project folder and backup in time machine before making any changes (this step is not required but I highly recommended).
2- Open your project.
3- Slow double click or hit enter on the Project name (blue top icon) and rename it to whatever you like.
NOTE: After you rename the project and press ‘enter’ it will suggest to automatically change all project-name-related entries and will allow you to de-select some of them if you want. Select all of them and click ok.
4- Rename the Scheme
a) Click the menu right next to the stop button and select Manage Schemes.
b) Single-slow-click or hit enter on the old name scheme and rename it to whatever you like.
c) Click ok.
5 - Build and run to make sure it works.
NOTES: At this point all of the important project files should be renamed except the comments in the classes created when the project was created nor the source folder. Next we will rename the folder in the file system.
6- Close the project.
7- Rename the main and the source folder.
8- Right click the project bundle .xcodeproj
file and select “Show Package Contents” from the context menu. Open the .pbxproj file with any text editor.
9- Search and replace any occurrence of the original folder name with the new folder name.
10- Save the file.
11- Open XCode project, test it.
12- Done.
There is a tool to rename projects in Xcode I haven't tried it enough to comment on it. https://github.com/appculture/xcode-project-renamer
Did you try
"
or \x22
instead of
\"
?
If you don't want to calculate it using java's Calendar you can use Androids Time class It is supposed to be faster but I didn't notice much difference when i switched.
I could not find any pre-defined functions to determine time between 2 dates for an age in Android. There are some nice helper functions to get formatted time between dates in the DateUtils but that's probably not what you want.
SELECT @var = col1,
@var2 = col2
FROM Table
Here is some interesting information about SET / SELECT
- SET is the ANSI standard for variable assignment, SELECT is not.
- SET can only assign one variable at a time, SELECT can make multiple assignments at once.
- If assigning from a query, SET can only assign a scalar value. If the query returns multiple values/rows then SET will raise an error. SELECT will assign one of the values to the variable and hide the fact that multiple values were returned (so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one)
- When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the variable will not be changed from it's previous value)
- As far as speed differences - there are no direct differences between SET and SELECT. However SELECT's ability to make multiple assignments in one shot does give it a slight speed advantage over SET.
Since version 2.10, one can use Scala's string interpolation feature:
implicit class RegexOps(sc: StringContext) {
def r = new util.matching.Regex(sc.parts.mkString, sc.parts.tail.map(_ => "x"): _*)
}
scala> "123" match { case r"\d+" => true case _ => false }
res34: Boolean = true
Even better one can bind regular expression groups:
scala> "123" match { case r"(\d+)$d" => d.toInt case _ => 0 }
res36: Int = 123
scala> "10+15" match { case r"(\d\d)${first}\+(\d\d)${second}" => first.toInt+second.toInt case _ => 0 }
res38: Int = 25
It is also possible to set more detailed binding mechanisms:
scala> object Doubler { def unapply(s: String) = Some(s.toInt*2) }
defined module Doubler
scala> "10" match { case r"(\d\d)${Doubler(d)}" => d case _ => 0 }
res40: Int = 20
scala> object isPositive { def unapply(s: String) = s.toInt >= 0 }
defined module isPositive
scala> "10" match { case r"(\d\d)${d @ isPositive()}" => d.toInt case _ => 0 }
res56: Int = 10
An impressive example on what's possible with Dynamic
is shown in the blog post Introduction to Type Dynamic:
object T {
class RegexpExtractor(params: List[String]) {
def unapplySeq(str: String) =
params.headOption flatMap (_.r unapplySeq str)
}
class StartsWithExtractor(params: List[String]) {
def unapply(str: String) =
params.headOption filter (str startsWith _) map (_ => str)
}
class MapExtractor(keys: List[String]) {
def unapplySeq[T](map: Map[String, T]) =
Some(keys.map(map get _))
}
import scala.language.dynamics
class ExtractorParams(params: List[String]) extends Dynamic {
val Map = new MapExtractor(params)
val StartsWith = new StartsWithExtractor(params)
val Regexp = new RegexpExtractor(params)
def selectDynamic(name: String) =
new ExtractorParams(params :+ name)
}
object p extends ExtractorParams(Nil)
Map("firstName" -> "John", "lastName" -> "Doe") match {
case p.firstName.lastName.Map(
Some(p.Jo.StartsWith(fn)),
Some(p.`.*(\\w)$`.Regexp(lastChar))) =>
println(s"Match! $fn ...$lastChar")
case _ => println("nope")
}
}
Omit row if either of two specific columns contain <NA>
.
DF[!is.na(DF$x)&!is.na(DF$z),]
Example of creating EditText with TextWatcher
EditText someEdit=new EditText(this);
//create TextWatcher for our EditText
TextWatcher1 TW1 = new TextWatcher1(someEdit);
//apply our TextWatcher to EditText
someEdit.addTextChangedListener(TW1);
custom TextWatcher
public class TextWatcher1 implements TextWatcher {
public EditText editText;
//constructor
public TextWatcher1(EditText et){
super();
editText = et;
//Code for monitoring keystrokes
editText.setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if(keyCode == KeyEvent.KEYCODE_DEL){
editText.setText("");
}
return false;
}
});
}
//Some manipulation with text
public void afterTextChanged(Editable s) {
if(editText.getText().length() == 12){
editText.setText(editText.getText().delete(editText.getText().length() - 1, editText.getText().length()));
editText.setSelection(editText.getText().toString().length());
}
if (editText.getText().length()==2||editText.getText().length()==5||editText.getText().length()==8){
editText.setText(editText.getText()+"/");
editText.setSelection(editText.getText().toString().length());
}
}
public void beforeTextChanged(CharSequence s, int start, int count, int after){
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
}
Even though you've accepted an answer, I want to post this method. I use jQuery to center it vertically instead of css (although both of these methods work). Here is a fiddle, and I'll post the code here anyways.
HTML:
<h1>Hello world!</h1>
Javascript (jQuery):
$(document).ready(function(){
$('h1').css({ 'width':'100%', 'text-align':'center' });
var h1 = $('h1').height();
var h = h1/2;
var w1 = $(window).height();
var w = w1/2;
var m = w - h
$('h1').css("margin-top",m + "px")
});
This takes the height of the viewport, divides it by two, subtracts half the height of the h1, and sets that number to the margin-top
of the h1. The beauty of this method is that it works on multiple-line h1
s.
EDIT: I modified it so that it centered it every time the window is resized.
Either u dont have permission to that schema/table OR table does exist. Mostly this issue occurred if you are using other schema tables in your stored procedures. Eg. If you are running Stored Procedure from user/schema ABC and in the same PL/SQL there are tables which is from user/schema XYZ. In this case ABC should have GRANT i.e. privileges of XYZ tables
Grant All On To ABC;
Select * From Dba_Tab_Privs Where Owner = 'XYZ'and Table_Name = <Table_Name>;