To create not optional data I recommend using it:
let key = "1234567"
let keyData = Data(key.utf8)
Connect to the Guest and find out the ip address:
ifconfig
example of result (ip address is 10.0.2.15):
eth0 Link encap:Ethernet HWaddr 08:00:27:AE:36:99
inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
Go to Vbox instance window -> Menu -> Network adapters:
Go to host system and try it in browser:
http://127.0.0.1:8000
or your network ip address (find out on the host machine by running: ipconfig).
In this case port forwarding is not needed, the communication goes over the LAN back to the host.
On the host machine - find out your netw ip address:
ipconfig
example of result:
IP Address. . . . . . . . . . . . : 192.168.5.1
On the guest machine you can communicate directly with the host, e.g. check it with ping:
# ping 192.168.5.1
PING 192.168.5.1 (192.168.5.1) 56(84) bytes of data.
64 bytes from 192.168.5.1: icmp_seq=1 ttl=128 time=2.30 ms
...
@Stranger suggested that in some cases it would be necessary to open used port (8000 or whichever is used) in firewall like this (example for ufw firewall, I haven't tested):
sudo ufw allow 8000
use ejs instead of jade
npm install ejs
app.js
app.engine('html', require('ejs').renderFile);
app.set('view engine', 'html');
./routes/index.js
exports.index = function(req, res){
res.render('index', { title: 'ejs' });};
you can use the download attribute on an a tag ...
<a href="data:image/jpeg;base64,/9j/4AAQSkZ..." download="filename.jpg"></a>
see more: https://developer.mozilla.org/en/HTML/element/a#attr-download
The exec
family of functions make your process execute a different program, replacing the old program it was running. I.e., if you call
execl("/bin/ls", "ls", NULL);
then the ls
program is executed with the process id, current working dir and user/group (access rights) of the process that called execl
. Afterwards, the original program is not running anymore.
To start a new process, the fork
system call is used. To execute a program without replacing the original, you need to fork
, then exec
.
Another approach is to create an association table that contains columns for each potential resource type. In your example, each of the two existing owner types has their own table (which means you have something to reference). If this will always be the case you can have something like this:
CREATE TABLE dbo.Group
(
ID int NOT NULL,
Name varchar(50) NOT NULL
)
CREATE TABLE dbo.User
(
ID int NOT NULL,
Name varchar(50) NOT NULL
)
CREATE TABLE dbo.Ticket
(
ID int NOT NULL,
Owner_ID int NOT NULL,
Subject varchar(50) NULL
)
CREATE TABLE dbo.Owner
(
ID int NOT NULL,
User_ID int NULL,
Group_ID int NULL,
{{AdditionalEntity_ID}} int NOT NULL
)
With this solution, you would continue to add new columns as you add new entities to the database and you would delete and recreate the foreign key constraint pattern shown by @Nathan Skerl. This solution is very similar to @Nathan Skerl but looks different (up to preference).
If you are not going to have a new Table for each new Owner type then maybe it would be good to include an owner_type instead of a foreign key column for each potential Owner:
CREATE TABLE dbo.Group
(
ID int NOT NULL,
Name varchar(50) NOT NULL
)
CREATE TABLE dbo.User
(
ID int NOT NULL,
Name varchar(50) NOT NULL
)
CREATE TABLE dbo.Ticket
(
ID int NOT NULL,
Owner_ID int NOT NULL,
Owner_Type string NOT NULL, -- In our example, this would be "User" or "Group"
Subject varchar(50) NULL
)
With the above method, you could add as many Owner Types as you want. Owner_ID would not have a foreign key constraint but would be used as a reference to the other tables. The downside is that you would have to look at the table to see what the owner types there are since it isn't immediately obvious based upon the schema. I would only suggest this if you don't know the owner types beforehand and they won't be linking to other tables. If you do know the owner types beforehand, I would go with a solution like @Nathan Skerl.
Sorry if I got some SQL wrong, I just threw this together.
This worked perfectly for me without css. I think css would put some icing on the cake though.
<form>
<label for="First Name" >First Name:</label>
<input type="text" name="username" size="15" maxlength="30" />
<label for="Last Name" >Last Name:</label>
<input type="text" name="username" size="15" maxlength="30" />
</form>
You can simply use:
List<string> items = new List<string>() { "foo", "boo", "john", "doe" };
Console.WriteLine(string.Join(",", items));
Happy coding!
isset() only checks if a variable is set.. Has got nothing to do with size or what the array contains
It means that there is no initial context :)
But seriously folks, JNDI (javax.naming) is all about looking up objects or resources from some directory or provider. To look something up, you need somewhere to look (this is the InitialContext). NoInitialContextException means "I want to find the telephone number for John Smith, but I have no phonebook to look in".
An InitialContext can be created in any number of ways. It can be done manually, for instance creating a connection to an LDAP server. It can also be set up by an application server inside which you run your application. In this case, the container (application server) already provides you with a "phonebook", through which you can look up anything the application server makes available. This is often configurable and a common way of moving this type of configuration from the application implementation to the container, where it can be shared across all applications in the server.
UPDATE: from the code snippet you post it looks like you are trying to run code stand-alone that is meant to be run in an application server. In this case, the code attempting to get a connection to a database from the "phonebook". This is one of the resources that is often configured in the application server container. So, rather than having to manage configuration and connections to the database in your code, you can configure it in your application server and simple ask for a connection (using JNDI) in your code.
Sorry to be so late to the party! I came across a similar issue, in WinRT. I'm not sure whether you're using WPF or WinRT, but they do differ in some ways (some better than others). Hopefully this will help people across the board, whichever situation they're in.
You could always use the code from the converter class I created to re-use and do in your C# code-behind, or wherever you're using it, to be honest:
I made it with the intention that a 6-digit (RGB), or an 8-digit (ARGB) Hex value could be used either way.
So I created a converter class:
public class StringToSolidColorBrushConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, string language)
{
var hexString = (value as string).Replace("#", "");
if (string.IsNullOrWhiteSpace(hexString)) throw new FormatException();
if (hexString.Length != 6 || hexString.Length != 8) throw new FormatException();
try
{
var a = hexString.Length == 8 ? hexString.Substring(0, 2) : "255";
var r = hexString.Length == 8 ? hexString.Substring(2, 2) : hexString.Substring(0, 2);
var g = hexString.Length == 8 ? hexString.Substring(4, 2) : hexString.Substring(2, 2);
var b = hexString.Length == 8 ? hexString.Substring(6, 2) : hexString.Substring(4, 2);
return new SolidColorBrush(ColorHelper.FromArgb(
byte.Parse(a, System.Globalization.NumberStyles.HexNumber),
byte.Parse(r, System.Globalization.NumberStyles.HexNumber),
byte.Parse(g, System.Globalization.NumberStyles.HexNumber),
byte.Parse(b, System.Globalization.NumberStyles.HexNumber)));
}
catch
{
throw new FormatException();
}
}
public object ConvertBack(object value, Type targetType, object parameter, string language)
{
throw new NotImplementedException();
}
}
Added it into my App.xaml:
<ResourceDictionary>
...
<converters:StringToSolidColorBrushConverter x:Key="StringToSolidColorBrushConverter" />
...
</ResourceDictionary>
And used it in my View's Xaml:
<Grid>
<Rectangle Fill="{Binding RectangleColour,
Converter={StaticResource StringToSolidColorBrushConverter}}"
Height="20" Width="20" />
</Grid>
Works a charm!
Side note...
Unfortunately, WinRT hasn't got the System.Windows.Media.BrushConverter
that H.B. suggested; so I needed another way, otherwise I would have made a VM property that returned a SolidColorBrush
(or similar) from the RectangleColour
string property.
Try with:
$row = mysqli_fetch_assoc($result);
echo "my result <a href='data/" . htmlentities($row['classtype'], ENT_QUOTES, 'UTF-8') . ".php'>My account</a>";
For databases:
Just use these commands:
USE db_name;
SELECT @@character_set_database;
-- or:
-- SELECT @@collation_database;
Yeah, no checkbox for you in iOS (-:
Here, this is what I did to create a checkbox:
UIButton *checkbox;
BOOL checkBoxSelected;
checkbox = [[UIButton alloc] initWithFrame:CGRectMake(x,y,20,20)];
// 20x20 is the size of the checkbox that you want
// create 2 images sizes 20x20 , one empty square and
// another of the same square with the checkmark in it
// Create 2 UIImages with these new images, then:
[checkbox setBackgroundImage:[UIImage imageNamed:@"notselectedcheckbox.png"]
forState:UIControlStateNormal];
[checkbox setBackgroundImage:[UIImage imageNamed:@"selectedcheckbox.png"]
forState:UIControlStateSelected];
[checkbox setBackgroundImage:[UIImage imageNamed:@"selectedcheckbox.png"]
forState:UIControlStateHighlighted];
checkbox.adjustsImageWhenHighlighted=YES;
[checkbox addTarget:(nullable id) action:(nonnull SEL) forControlEvents:(UIControlEvents)];
[self.view addSubview:checkbox];
Now in the target method do the following:
-(void)checkboxSelected:(id)sender
{
checkBoxSelected = !checkBoxSelected; /* Toggle */
[checkbox setSelected:checkBoxSelected];
}
That's it!
Edit the build path in this order, this worked for me.
Make sure the /gen
is before /src
I think using the broadcast in numpy is the best, and faster
I did a compare as following
import numpy as np
b = np.random.randn(1000)
In [105]: %timeit c = np.tile(b[:, newaxis], (1,100))
1000 loops, best of 3: 354 µs per loop
In [106]: %timeit c = np.repeat(b[:, newaxis], 100, axis=1)
1000 loops, best of 3: 347 µs per loop
In [107]: %timeit c = np.array([b,]*100).transpose()
100 loops, best of 3: 5.56 ms per loop
about 15 times faster using broadcast
You could alter the figsize
by passing a tuple
showing the width, height
parameters you would like to keep.
import matplotlib.pyplot as plt
fig, ax = plt.subplots(figsize=(10,10)) # Sample figsize in inches
sns.heatmap(df1.iloc[:, 1:6:], annot=True, linewidths=.5, ax=ax)
EDIT
I remember answering a similar question of yours where you had to set the index as TIMESTAMP
. So, you could then do something like below:
df = df.set_index('TIMESTAMP')
df.resample('30min').mean()
fig, ax = plt.subplots()
ax = sns.heatmap(df.iloc[:, 1:6:], annot=True, linewidths=.5)
ax.set_yticklabels([i.strftime("%Y-%m-%d %H:%M:%S") for i in df.index], rotation=0)
For the head
of the dataframe you posted, the plot would look like:
The parentheses are poorly placed.
You need to use:
doThrow(new Exception()).when(mockedObject).methodReturningVoid(...);
^
and NOT use:
doThrow(new Exception()).when(mockedObject.methodReturningVoid(...));
^
This is explained in the documentation
If you are targeting pre-Lollipop devices, you can use Shadow-Layout, since it easy and you can use it in different kind of layouts.
Add shadow-layout to your Gradle file:
dependencies {
compile 'com.github.dmytrodanylyk.shadow-layout:library:1.0.1'
}
At the top the xml layout where you have your button, add to the top:
xmlns:app="http://schemas.android.com/apk/res-auto"
it will make available the custom attributes.
Then you put a shadow layout around you Button:
<com.dd.ShadowLayout
android:layout_marginTop="16dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:sl_shadowRadius="4dp"
app:sl_shadowColor="#AA000000"
app:sl_dx="0dp"
app:sl_dy="0dp"
app:sl_cornerRadius="56dp">
<YourButton
.... />
</com.dd.ShadowLayout>
You can then tweak the app:
settings to match your required shadow.
Hope it helps.
Try refreshing the view:
Ext.getCmp('yourGridId').getView().refresh();
width, height = map(int, input().split())
def rectanglePerimeter(width, height):
return ((width + height)*2)
print(rectanglePerimeter(width, height))
Running it like this produces:
% echo "1 2" | test.py
6
I suspect IDLE is simply passing a single string to your script. The first input()
is slurping the entire string. Notice what happens if you put some print statements in after the calls to input()
:
width = input()
print(width)
height = input()
print(height)
Running echo "1 2" | test.py
produces
1 2
Traceback (most recent call last):
File "/home/unutbu/pybin/test.py", line 5, in <module>
height = input()
EOFError: EOF when reading a line
Notice the first print statement prints the entire string '1 2'
. The second call to input()
raises the EOFError
(end-of-file error).
So a simple pipe such as the one I used only allows you to pass one string. Thus you can only call input()
once. You must then process this string, split it on whitespace, and convert the string fragments to ints yourself. That is what
width, height = map(int, input().split())
does.
Note, there are other ways to pass input to your program. If you had run test.py
in a terminal, then you could have typed 1
and 2
separately with no problem. Or, you could have written a program with pexpect to simulate a terminal, passing 1
and 2
programmatically. Or, you could use argparse to pass arguments on the command line, allowing you to call your program with
test.py 1 2
In HTML, elements containing nothing but normal whitespace characters are considered empty. A paragraph that contains just a normal space character will have zero height. A non-breaking space is a special kind of whitespace character that isn't considered to be insignificant, so it can be used as content for a non-empty paragraph.
Even if you consider CSS margins on paragraphs, since an "empty" paragraph has zero height, its vertical margins will collapse. This causes it to have no height and no margins, making it appear as if it were never there at all.
Use the replace
function in js:
var emailAdd = $(this).text().replace(/ /g,'');
That will remove all the spaces
If you want to remove the leading and trailing whitespace only, use the jQuery $.trim method :
var emailAdd = $.trim($(this).text());
I had this issue when running an app within VS. All I had to do was run the program as Administrator once, then I could run from within VS.
To run as Administrator, just navigate to your debug folder in windows explorer. Right-click on the program and choose Run as administrator.
var hello = "foo";
var my_string ="I pity the";
console.log(my_string, hello)
You can get current year, month, day etc from a calendar instance
val c = Calendar.getInstance()
val year = c.get(Calendar.YEAR)
val month = c.get(Calendar.MONTH)
val day = c.get(Calendar.DAY_OF_MONTH)
val hour = c.get(Calendar.HOUR_OF_DAY)
val minute = c.get(Calendar.MINUTE)
If you need it as a LocalDateTime, simply create it by using the parameters you got above
val myLdt = LocalDateTime.of(year, month, day, ... )
It can't be done directly, but you can emulate the same thing using function pointers and explicitly passing the "this" parameter:
typedef struct client_t client_t, *pno;
struct client_t
{
pid_t pid;
char password[TAM_MAX]; // -> 50 chars
pno next;
pno (*AddClient)(client_t *);
};
pno client_t_AddClient(client_t *self) { /* code */ }
int main()
{
client_t client;
client.AddClient = client_t_AddClient; // probably really done in some init fn
//code ..
client.AddClient(&client);
}
It turns out that doing this, however, doesn't really buy you an awful lot. As such, you won't see many C APIs implemented in this style, since you may as well just call your external function and pass the instance.
(1) check the port is in use or not, kill that process
$ lsof -i:[port]
(2) another reason is the port is used by ipv6, solution:
edit /etc/sysctl.conf
add this to the file
net.ipv6.conf.all.disable_ipv6 = 1
then make it effect
$ sudo sysctl -p /etc/sysctl.conf
or just reboot
java.util.UUID.randomUUID();
There are a number of Atom packages which give you access to the terminal from within Atom. Try a few out to find the best option for you.
Some recommendations which work in Ubuntu (with their primary keyboard shortcuts):
Edit: recommended plugin changed as terminal-plus
is no longer maintained. Thanks for the head's-up, @MorganRodgers.
If you want to open a terminal panel in Atom, try atom-ide-terminal
. Use the keyboard shortcut ctrl-`
to open a new terminal instance.
If you just want a shortcut to open your external terminal from within Atom, try atom-terminal
(this is what I use). You can use ctrl-shift-t
to open your external terminal in the current file's directory, or alt-shift-t
to open the terminal in the project's root directory.
Setting the CurrentCell
and then calling BeginEdit(true)
works well for me.
The following code shows an eventHandler for the KeyDown
event that sets a cell to be editable.
My example only implements one of the required key press overrides but in theory the others should work the same. (and I'm always setting the [0][0] cell to be editable but any other cell should work)
private void dataGridView1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Tab && dataGridView1.CurrentCell.ColumnIndex == 1)
{
e.Handled = true;
DataGridViewCell cell = dataGridView1.Rows[0].Cells[0];
dataGridView1.CurrentCell = cell;
dataGridView1.BeginEdit(true);
}
}
If you haven't found it previously, the DataGridView FAQ is a great resource, written by the program manager for the DataGridView control, which covers most of what you could want to do with the control.
You could also use
print(tbl_df(df), n=40)
or with the help of the pipe operator
df %>% tbl_df %>% print(n=40)
To print all rows specify tbl_df %>% print(n = Inf)
You can also try out a newer effort known as Node.js DB that aims to provide a common framework for several database engines. It is built with C++ so performance is guaranteed.
Specifically you could use its db-mysql driver for Node.js MySQL support.
Try this:
$comments_collection = $post->comments()->get()->toArray();
see this can help you
toArray() method in Collections
Here is a macro that I use for that purpose. It will generate a constructor from fields and properties that have a private setter.
Imports System
Imports EnvDTE
Imports EnvDTE80
Imports EnvDTE90
Imports EnvDTE90a
Imports EnvDTE100
Imports System.Diagnostics
Imports System.Collections.Generic
Public Module Temp
Sub AddConstructorFromFields()
DTE.UndoContext.Open("Add constructor from fields")
Dim classElement As CodeClass, index As Integer
GetClassAndInsertionIndex(classElement, index)
Dim constructor As CodeFunction
constructor = classElement.AddFunction(classElement.Name, vsCMFunction.vsCMFunctionConstructor, vsCMTypeRef.vsCMTypeRefVoid, index, vsCMAccess.vsCMAccessPublic)
Dim visitedNames As New Dictionary(Of String, String)
Dim element As CodeElement, parameterPosition As Integer, isFirst As Boolean = True
For Each element In classElement.Children
Dim fieldType As String
Dim fieldName As String
Dim parameterName As String
Select Case element.Kind
Case vsCMElement.vsCMElementVariable
Dim field As CodeVariable = CType(element, CodeVariable)
fieldType = field.Type.AsString
fieldName = field.Name
parameterName = field.Name.TrimStart("_".ToCharArray())
Case vsCMElement.vsCMElementProperty
Dim field As CodeProperty = CType(element, CodeProperty)
If field.Setter.Access = vsCMAccess.vsCMAccessPrivate Then
fieldType = field.Type.AsString
fieldName = field.Name
parameterName = field.Name.Substring(0, 1).ToLower() + field.Name.Substring(1)
End If
End Select
If Not String.IsNullOrEmpty(parameterName) And Not visitedNames.ContainsKey(parameterName) Then
visitedNames.Add(parameterName, parameterName)
constructor.AddParameter(parameterName, fieldType, parameterPosition)
Dim endPoint As EditPoint
endPoint = constructor.EndPoint.CreateEditPoint()
endPoint.LineUp()
endPoint.EndOfLine()
If Not isFirst Then
endPoint.Insert(Environment.NewLine)
Else
isFirst = False
End If
endPoint.Insert(String.Format(MemberAssignmentFormat(constructor.Language), fieldName, parameterName))
parameterPosition = parameterPosition + 1
End If
Next
DTE.UndoContext.Close()
Try
' This command fails sometimes '
DTE.ExecuteCommand("Edit.FormatDocument")
Catch ex As Exception
End Try
End Sub
Private Sub GetClassAndInsertionIndex(ByRef classElement As CodeClass, ByRef index As Integer, Optional ByVal useStartIndex As Boolean = False)
Dim selection As TextSelection
selection = CType(DTE.ActiveDocument.Selection, TextSelection)
classElement = CType(selection.ActivePoint.CodeElement(vsCMElement.vsCMElementClass), CodeClass)
Dim childElement As CodeElement
index = 0
For Each childElement In classElement.Children
Dim childOffset As Integer
childOffset = childElement.GetStartPoint(vsCMPart.vsCMPartWholeWithAttributes).AbsoluteCharOffset
If selection.ActivePoint.AbsoluteCharOffset < childOffset Or useStartIndex Then
Exit For
End If
index = index + 1
Next
End Sub
Private ReadOnly Property MemberAssignmentFormat(ByVal language As String) As String
Get
Select Case language
Case CodeModelLanguageConstants.vsCMLanguageCSharp
Return "this.{0} = {1};"
Case CodeModelLanguageConstants.vsCMLanguageVB
Return "Me.{0} = {1}"
Case Else
Return ""
End Select
End Get
End Property
End Module
In html its used along with limitTo filter provided by angular itself as below,
<p> {{limitTo:30 | keepDots }} </p>
filter keepDots :
App.filter('keepDots' , keepDots)
function keepDots() {
return function(input,scope) {
if(!input) return;
if(input.length > 20)
return input+'...';
else
return input;
}
}
I was facing the same problem as Jon. TheLibzter put me on the right track, but the image that has to stay at the bottom of the sidebar was not included. So I made some adjustments...
Important:
Here's the css:
#container
{
margin: auto;
width: 940px;
}
#bodyLayout
{
position: relative;
width: 100%;
padding: 0;
}
#header
{
height: 95px;
background-color: blue;
color: white;
}
#sidebar
{
background-color: yellow;
}
#sidebarTopDiv
{
float: left;
width: 245px;
color: black;
}
#sidebarBottomDiv
{
position: absolute;
float: left;
bottom: 0;
width: 245px;
height: 100px;
background-color: green;
color: white;
}
#content
{
float: right;
min-height: 250px;
width: 695px;
background-color: White;
}
#footer
{
width: 940px;
height: 75px;
background-color: red;
color: white;
}
.clear
{
clear: both;
}
And here's the html:
<div id="container">
<div id="header">
This is your header!
</div>
<div id="bodyLayout">
<div id="sidebar">
<div id="sidebarTopDiv">
This is your sidebar!
</div>
<div id="content">
This is your content!<br />
The minimum height of the content is set to 250px so the div at the bottom of
the sidebar will not overlap the top part of the sidebar.
</div>
<div id="sidebarBottomDiv">
This is the div that will stay at the bottom of your footer!
</div>
<div class="clear" />
</div>
</div>
</div>
<div id="footer">
This is your footer!
</div>
swift enforces you to initialise every member var before it is ever/might ever be used. Since it can't be sure what happens when it is supers turn, it errors out: better safe than sorry
Basic Steps to Debug a Procedure in Toad
Reference:Toad Debugger
You can't. If you have a method called isBiggerThanMaxLong(long)
it should always return false
.
If you were to increment the bits of Long.MAX_VALUE
, the next value should be Long.MIN_VALUE
. Read up on twos-complement and that should tell you why.
another way to solve this: preg_match('/^\d+\.\d+$/',$number);
:)
The way I like to do this is to convert both the original set and the values I'd like to add into lists, add them, and then convert them back into a set, like this:
setMenu = {"Eggs", "Bacon"}
print(setMenu)
> {'Bacon', 'Eggs'}
setMenu = set(list(setMenu) + list({"Spam"}))
print(setMenu)
> {'Bacon', 'Spam', 'Eggs'}
setAdditions = {"Lobster", "Sausage"}
setMenu = set(list(setMenu) + list(setAdditions))
print(setMenu)
> {'Lobster', 'Spam', 'Eggs', 'Sausage', 'Bacon'}
This way I can also easily add multiple sets using the same logic, which gets me an TypeError: unhashable type: 'set'
if I try doing it with the .update()
method.
The bullet gets its color from the text. So if you want to have a different color bullet than text in your list you'll have to add some markup.
Wrap the list text in a span:
<ul>
<li><span>item #1</span></li>
<li><span>item #2</span></li>
<li><span>item #3</span></li>
</ul>
Then modify your style rules slightly:
li {
color: red; /* bullet color */
}
li span {
color: black; /* text color */
}
Using the autopep8
command below fixed it for me:
autopep8 -i my_file.py
Documentation for autopep8
linked here.
You can definitely run a high-traffic site in Django. Check out this pre-Django 1.0 but still relevant post here: http://menendez.com/blog/launching-high-performance-django-site/
$.browser
was removed from jQuery starting with version 1.9. It is now available as a plugin. It's generally recommended to avoid browser detection, which is why it was removed.
Here's a groovy version based on some of the code above, in case it helps. It's short, anyway. Conditionally includes the head and tail (if they are not empty). The last part is a demo/test case.
List splitWithTokens(str, pat) {
def tokens=[]
def lastMatch=0
def m = str=~pat
while (m.find()) {
if (m.start() > 0) tokens << str[lastMatch..<m.start()]
tokens << m.group()
lastMatch=m.end()
}
if (lastMatch < str.length()) tokens << str[lastMatch..<str.length()]
tokens
}
[['<html><head><title>this is the title</title></head>',/<[^>]+>/],
['before<html><head><title>this is the title</title></head>after',/<[^>]+>/]
].each {
println splitWithTokens(*it)
}
DataMember attribute is not mandatory to add to serialize data. When DataMember attribute is not added, old XMLSerializer serializes the data. Adding a DataMember provides useful properties like order, name, isrequired which cannot be used otherwise.
Here's a tip if you're using cmake. From: http://public.kitware.com/pipermail/cmake/2013-January/053117.html
I'm copying the tip so it's all on this page:
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__FILENAME__='\"$(subst
${CMAKE_SOURCE_DIR}/,,$(abspath $<))\"'")
If you're using GNU make, I see no reason you couldn't extend this to your own makefiles. For example, you might have a line like this:
CXX_FLAGS+=-D__FILENAME__='\"$(subst $(SOURCE_PREFIX)/,,$(abspath $<))\"'"
where $(SOURCE_PREFIX)
is the prefix that you want to remove.
Then use __FILENAME__
in place of __FILE__
.
Middleware
stands between web applications and web services that natively can't communicate and often are written in different languages/frameworks.
One such example is OWIN middleware for .NET
environment, before owin people were forced to host web apps in a microsoft hosting software called IIS
. After owin was developed, it has added capacity to host both in IIS and self host, in IIS was just added support for Owin which acted as an interface. Also it become possible to host .NET web apps on Linux via Mono
, which again added support for Owin.
It also added capacity to create Single Page Applications
, Owin handling Http
request/response context, so on top of owin you can add authentication/authorization
logic via OAuth2 for example, you can configure middleware to register a class which contains logic of user authentification (for ex. OAuth2 implementation) or class which contains logic of how to manage http request/response messages, that way you can make one application communicate with other applications/services via different data format (like json, xml, etc if you are targeting web).
let str = "Before brackets (Inside brackets) After brackets".replace(/.*\(|\).*/g, '');_x000D_
console.log(str) // Inside brackets
_x000D_
The same solution as for Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL? should work - send a CREATE USER …
to \gexec
.
SELECT 'CREATE USER my_user'
WHERE NOT EXISTS (SELECT FROM pg_catalog.pg_roles WHERE rolname = 'my_user')\gexec
echo "SELECT 'CREATE USER my_user' WHERE NOT EXISTS (SELECT FROM pg_catalog.pg_roles WHERE rolname = 'my_user')\gexec" | psql
See accepted answer there for more details.
In response to Matt Roy answer, I found this option a great response, although I couldn't post as such with my current rating. :(
However, while taking the opportunity to post my thoughts on his response, I thought I would take the opportunity to include a small modification. Just compare code to see.
So thanks to Matt Roy for bringing this code to our attention, and Chris.R for posting original code.
Dim OldValues As New Collection
Private Sub Worksheet_SelectionChange(ByVal Target As Range)
'>> Prevent user from multiple selection before any changes:
If Selection.Cells.Count > 1 Then
MsgBox "Sorry, multiple selections are not allowed.", vbCritical
ActiveCell.Select
Exit Sub
End If
'Copy old values
Set OldValues = Nothing
Dim c As Range
For Each c In Target
OldValues.Add c.Value, c.Address
Next c
End Sub
Private Sub Worksheet_Change(ByVal Target As Range)
On Error Resume Next
On Local Error Resume Next ' To avoid error if the old value of the cell address you're looking for has not been copied
Dim c As Range
For Each c In Target
If OldValues(c.Address) <> "" And c.Value <> "" Then 'both Oldvalue and NewValue are Not Empty
Debug.Print "New value of " & c.Address & " is " & c.Value & "; old value was " & OldValues(c.Address)
ElseIf OldValues(c.Address) = "" And c.Value = "" Then 'both Oldvalue and NewValue are Empty
Debug.Print "New value of " & c.Address & " is Empty " & c.Value & "; old value is Empty" & OldValues(c.Address)
ElseIf OldValues(c.Address) <> "" And c.Value = "" Then 'Oldvalue is Empty and NewValue is Not Empty
Debug.Print "New value of " & c.Address & " is Empty" & c.Value & "; old value was " & OldValues(c.Address)
ElseIf OldValues(c.Address) = "" And c.Value <> "" Then 'Oldvalue is Not Empty and NewValue is Empty
Debug.Print "New value of " & c.Address & " is " & c.Value & "; old value is Empty" & OldValues(c.Address)
End If
Next c
'Copy old values (in case you made any changes in previous lines of code)
Set OldValues = Nothing
For Each c In Target
OldValues.Add c.Value, c.Address
Next c
Just to add to answers by Mr. Dimitrov and Jason, if you are using a specific profile and you have put your region setting there,then for all the requests you need to add
"--profile" option.
For example:
Lets say you have AWS Playground profile, and the ~/.aws/config has [profile playground] which further has something like,
[profile playground]
region=us-east-1
then, use something like below
aws ecs list-container-instances --cluster default --profile playground
Remove/Replace all special chars in Jquery :
If
str = My name is "Ghanshyam" and from "java" background
and want to remove all special chars (") then use this
str=str.replace(/"/g,' ')
result:
My name is Ghanshyam and from java background
Where g means Global
An issue with Gulp 4.
For solving this problem try to change your current code:
gulp.task('simpleTaskName', function() {
// code...
});
for example into this:
gulp.task('simpleTaskName', async function() {
// code...
});
or into this:
gulp.task('simpleTaskName', done => {
// code...
done();
});
Only checked
and checked="checked"
are valid. Your other options depend on error recovery in browsers.
checked="yes"
and checked="true"
are particularly bad as they imply that checked="no"
and checked="false"
will set the default state to be unchecked … which they will not.
I don't see php file, but that could be that -
replace in your php file:
$query_age = $_GET['query_age'];
with:
$query_age = (isset($_GET['query_age']) ? $_GET['query_age'] : null);
Most probably, at first time you running your script without ?query_age=[something]
and $_GET
has no key like query_age
.
Use a Bundle
. Here's an example:
Fragment fragment = new Fragment();
Bundle bundle = new Bundle();
bundle.putInt(key, value);
fragment.setArguments(bundle);
Bundle has put methods for lots of data types. See this
Then in your Fragment
, retrieve the data (e.g. in onCreate()
method) with:
Bundle bundle = this.getArguments();
if (bundle != null) {
int myInt = bundle.getInt(key, defaultValue);
}
Yes, this is something that you should worry about. Check the length of your objects with nrow(). R can auto-replicate objects so that they're the same length if they differ, which means you might be performing operations on mismatched data.
In this case you have an obvious flaw in that your subtracting aggregated data from raw data. These will definitely be of different lengths. I suggest that you merge them as time series (using the dates), then locf(), then do your subtraction. Otherwise merge them by truncating the original dates to the same interval as the aggregated series. Just be very careful that you don't drop observations.
Lastly, as some general advice as you get started: look at the result of your computations to see if they make sense. You might even pull them into a spreadsheet and replicate the results.
Copying from a command line is unnecessary. I typed in the name of the DLL from the Start Window search. I chose See More Results. The one in the GAC was returned in the search window. I right clicked on it and said open file location. It opened in normal Windows Explorer. I copied the file. I closed the window. Done.
You are looking to see if a single value is in an array. Use in_array
.
However note that case is important, as are any leading or trailing spaces. Use var_dump
to find out the length of the strings too, and see if they fit.
It's also possible letting a ServletContextListener set the System properties:
import java.util.Enumeration;
import javax.servlet.*;
public class SystemPropertiesHelper implements
javax.servlet.ServletContextListener {
private ServletContext context = null;
public void contextInitialized(ServletContextEvent event) {
context = event.getServletContext();
Enumeration<String> params = context.getInitParameterNames();
while (params.hasMoreElements()) {
String param = (String) params.nextElement();
String value =
context.getInitParameter(param);
if (param.startsWith("customPrefix.")) {
System.setProperty(param, value);
}
}
}
public void contextDestroyed(ServletContextEvent event) {
}
}
And then put this into your web.xml (should be possible for context.xml too)
<context-param>
<param-name>customPrefix.property</param-name>
<param-value>value</param-value>
<param-type>java.lang.String</param-type>
</context-param>
<listener>
<listener-class>servletUtils.SystemPropertiesHelper</listener-class>
</listener>
It worked for me.
With Python 3.2 and later, you can use int.to_bytes
and int.from_bytes
: https://docs.python.org/3/library/stdtypes.html#int.to_bytes
var res = (from element in list)
.OrderBy(x => x.F2).AsEnumerable()
.GroupBy(x => x.F1)
.Select()
Use .AsEnumerable() after OrderBy()
For outputing String
as text/plain
use:
@RequestMapping(value="/foo", method=RequestMethod.GET, produces="text/plain")
@ResponseBody
public String foo() {
return "bar";
}
This is a general implementation to get the string name of fields/properties/indexers/methods/extension methods/delegates of struct/class/interface/delegate/array. I have tested with combinations of static/instance and non-generic/generic variants.
//involves recursion
public static string GetMemberName(this LambdaExpression memberSelector)
{
Func<Expression, string> nameSelector = null; //recursive func
nameSelector = e => //or move the entire thing to a separate recursive method
{
switch (e.NodeType)
{
case ExpressionType.Parameter:
return ((ParameterExpression)e).Name;
case ExpressionType.MemberAccess:
return ((MemberExpression)e).Member.Name;
case ExpressionType.Call:
return ((MethodCallExpression)e).Method.Name;
case ExpressionType.Convert:
case ExpressionType.ConvertChecked:
return nameSelector(((UnaryExpression)e).Operand);
case ExpressionType.Invoke:
return nameSelector(((InvocationExpression)e).Expression);
case ExpressionType.ArrayLength:
return "Length";
default:
throw new Exception("not a proper member selector");
}
};
return nameSelector(memberSelector.Body);
}
This thing can be written in a simple while
loop too:
//iteration based
public static string GetMemberName(this LambdaExpression memberSelector)
{
var currentExpression = memberSelector.Body;
while (true)
{
switch (currentExpression.NodeType)
{
case ExpressionType.Parameter:
return ((ParameterExpression)currentExpression).Name;
case ExpressionType.MemberAccess:
return ((MemberExpression)currentExpression).Member.Name;
case ExpressionType.Call:
return ((MethodCallExpression)currentExpression).Method.Name;
case ExpressionType.Convert:
case ExpressionType.ConvertChecked:
currentExpression = ((UnaryExpression)currentExpression).Operand;
break;
case ExpressionType.Invoke:
currentExpression = ((InvocationExpression)currentExpression).Expression;
break;
case ExpressionType.ArrayLength:
return "Length";
default:
throw new Exception("not a proper member selector");
}
}
}
I like the recursive approach, though the second one might be easier to read. One can call it like:
someExpr = x => x.Property.ExtensionMethod()[0]; //or
someExpr = x => Static.Method().Field; //or
someExpr = x => VoidMethod(); //or
someExpr = () => localVariable; //or
someExpr = x => x; //or
someExpr = x => (Type)x; //or
someExpr = () => Array[0].Delegate(null); //etc
string name = someExpr.GetMemberName();
to print the last member.
Note:
In case of chained expressions like A.B.C
, "C" is returned.
This doesn't work with const
s, array indexers or enum
s (impossible to cover all cases).
When you create your table, put your td with class = "suma"
$(function(){
//funcion suma todo
var sum = 0;
$('.suma').each(function(x,y){
sum += parseInt($(this).text());
})
$('#lblTotal').text(sum);
// funcion suma por check
$( "input:checkbox").change(function(){
if($(this).is(':checked')){
$(this).parent().parent().find('td:last').addClass('suma2');
}else{
$(this).parent().parent().find('td:last').removeClass('suma2');
}
suma2Total();
})
function suma2Total(){
var sum2 = 0;
$('.suma2').each(function(x,y){
sum2 += parseInt($(this).text());
})
$('#lblTotal2').text(sum2);
}
});
You can use the decompose method in bs4:
soup = bs4.BeautifulSoup('<body><a href="http://example.com/">I linked to <i>example.com</i></a></body>')
for a in soup.find('a').children:
if isinstance(a,bs4.element.Tag):
a.decompose()
print soup
Out: <html><body><a href="http://example.com/">I linked to </a></body></html>
Just to clear some things up here. The answer that was accepted does not do the same as PHP in_array.
To do the same as PHP in_array use following expression:
{% if myVar in myArray %}
If you want to negate this you should use this:
{% if myVar not in myArray %}
If you want an argument that might appeal to a boss: Think about what a URL is. URLs are public. People copy and paste them. They share them, they put them on advertisements. Nothing prevents someone (knowingly or not) from mailing that URL around for other people to use. If your API key is in that URL, everybody has it.
Just for the record, you can filter on data with jquery (this question is quite old, and jQuery evolved since then, so it's right to write this solution as well):
$('.navlink[data-selected="true"]');
or, better (for performance):
$('.navlink').filter('[data-selected="true"]');
or, if you want to get all the elements with data-selected
set:
$('[data-selected]')
Note that this method will only work with data that was set via html-attributes. If you set or change data with the .data()
call, this method will no longer work.
If you're interested in learning a language which supports massive parallelism better go for OpenCL since you don't have an NVIDIA GPU. You can run OpenCL on Intel CPUs, but at best you can learn to program SIMDs. Optimization on CPU and GPU are different. I really don't think you can use Intel card for GPGPU.
One other way around this is to use @Mock
annotation instead.
Doesn't work in all cases, but looks much sexier :)
Here's an example:
@RunWith(MockitoJUnitRunner.class)
public class FooTests {
@Mock
public Foo<Bar> fooMock;
@Test
public void testFoo() {
when(fooMock.getValue()).thenReturn(new Bar());
}
}
The MockitoJUnitRunner
initializes the fields annotated with @Mock
.
I find Func<T>
very useful when I create a component that needs to be personalized "on the fly".
Take this very simple example: a PrintListToConsole<T>
component.
A very simple object that prints this list of objects to the console. You want to let the developer that uses it personalize the output.
For example, you want to let him define a particular type of number format and so on.
Without Func
First, you have to create an interface for a class that takes the input and produces the string to print to the console.
interface PrintListConsoleRender<T> {
String Render(T input);
}
Then you have to create the class PrintListToConsole<T>
that takes the previously created interface and uses it over each element of the list.
class PrintListToConsole<T> {
private PrintListConsoleRender<T> _renderer;
public void SetRenderer(PrintListConsoleRender<T> r) {
// this is the point where I can personalize the render mechanism
_renderer = r;
}
public void PrintToConsole(List<T> list) {
foreach (var item in list) {
Console.Write(_renderer.Render(item));
}
}
}
The developer that needs to use your component has to:
implement the interface
pass the real class to the PrintListToConsole
class MyRenderer : PrintListConsoleRender<int> {
public String Render(int input) {
return "Number: " + input;
}
}
class Program {
static void Main(string[] args) {
var list = new List<int> { 1, 2, 3 };
var printer = new PrintListToConsole<int>();
printer.SetRenderer(new MyRenderer());
printer.PrintToConsole(list);
string result = Console.ReadLine();
}
}
Using Func it's much simpler
Inside the component you define a parameter of type Func<T,String>
that represents an interface of a function that takes an input parameter of type T and returns a string (the output for the console)
class PrintListToConsole<T> {
private Func<T, String> _renderFunc;
public void SetRenderFunc(Func<T, String> r) {
// this is the point where I can set the render mechanism
_renderFunc = r;
}
public void Print(List<T> list) {
foreach (var item in list) {
Console.Write(_renderFunc(item));
}
}
}
When the developer uses your component he simply passes to the component the implementation of the Func<T, String>
type, that is a function that creates the output for the console.
class Program {
static void Main(string[] args) {
var list = new List<int> { 1, 2, 3 }; // should be a list as the method signature expects
var printer = new PrintListToConsole<int>();
printer.SetRenderFunc((o) => "Number:" + o);
printer.Print(list);
string result = Console.ReadLine();
}
}
Func<T>
lets you define a generic method interface on the fly.
You define what type the input is and what type the output is.
Simple and concise.
I think this is the kind of question only a core developer could/should answer. I've researched and found the core ticket #17048: URLs delivered to the browser should be root-relative. Where we can find the reasons explained by Andrew Nacin, lead core developer. He also links to this [wp-hackers] thread. On both those links, these are the key quotes on why WP doesn't use relative URLs:
Core ticket:
Root-relative URLs aren't really proper.
/path/
might not be WordPress, it might be outside of the install. So really it's not much different than an absolute URL.Any relative URLs also make it significantly more difficult to perform transformations when the install is moved. The find-replace is going to be necessary in most situations, and having an absolute URL is ironically more portable for those reasons.
absolute URLs are needed in numerous other places. Needing to add these in conditionally will add to processing, as well as introduce potential bugs (and incompatibilities with plugins).
[wp-hackers] thread
Relative to what, I'm not sure, as WordPress is often in a subdirectory, which means we'll always need to process the content to then add in the rest of the path. This introduces overhead.
Keep in mind that there are two types of relative URLs, with and without the leading slash. Both have caveats that make this impossible to properly implement.
WordPress should (and does) store absolute URLs. This requires no pre-processing of content, no overhead, no ambiguity. If you need to relocate, it is a global find-replace in the database.
And, on a personal note, more than once I've found theme and plugins bad coded that simply break when WP_CONTENT_URL
is defined.
They don't know this can be set and assume that this is true: WP.URL/wp-content/WhatEver, and it's not always the case. And something will break along the way.
The plugin Relative URLs (linked in edse's Answer), applies the function wp_make_link_relative
in a series of filters in the action hook template_redirect
. It's quite a simple code and seems a nice option.
HTML
<div class="relative"><!--used as a container-->
<!-- add content here to to make some height and width
example:<img src="" alt=""> -->
<div class="absolute">
<div class="table">
<div class="table-cell">
Vertical contents goes here
</div>
</div>
</div>
</div>
CSS
.relative {
position: relative;
}
.absolute {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
background: rgba(0, 0, 0, 0.5);
}
.table {
display: table;
height: 100%;
width: 100%;
text-align: center;
color: #fff;
}
.table-cell {
display: table-cell;
vertical-align: middle;
}
I think this is the straight-forward way:
$ cat reader.sh
#!/bin/bash
while read line; do
echo "reading: ${line}"
done < /dev/stdin
--
$ cat writer.sh
#!/bin/bash
for i in {0..5}; do
echo "line ${i}"
done
--
$ ./writer.sh | ./reader.sh
reading: line 0
reading: line 1
reading: line 2
reading: line 3
reading: line 4
reading: line 5
If you are using Dot.Net then the code you need is
Environment.GetFolderPath(Environment.SpecialFolder.InternetCache)
Click my name if you want the code to delete these files plus FireFox temp files and Flash shared object/Flash Cookies
If you want something completely customizable, try out my solution here:
http://www.kevinwilliampang.com/post/Mapping-Enums-To-Strings-and-Strings-to-Enums-in-NET.aspx
Basically, the post outlines how to attach Description attributes to each of your enums and provides a generic way to map from enum to description.
I agree with Ash, that should be fine. Alternatively you could use declarative CAS and actually prevent the program from running in the first place if they don't have access.
I believe some of the CAS features may not be present in C# 4.0 from what I've heard, not sure if that might be an issue or not.
Install the packages into Your virtual environment.
Then start a new shell and source Your virtual environment again.
If you are using Ubuntu and it seem sendmail is not in /usr/sbin/sendmail
, install sendmail using the terminal with this command:
sudo apt-get install sendmail
and then run reload the PHP page where mail()
is written. Also check your spam folder.
Put the data into a Pivot Table and do a top n filter on it
Here's my variant to solve the problem of viewable area's limitation.
google.maps.event.addListener(this.map, 'idle', function() {
var minLat = strictBounds.getSouthWest().lat();
var minLon = strictBounds.getSouthWest().lng();
var maxLat = strictBounds.getNorthEast().lat();
var maxLon = strictBounds.getNorthEast().lng();
var cBounds = self.map.getBounds();
var cMinLat = cBounds.getSouthWest().lat();
var cMinLon = cBounds.getSouthWest().lng();
var cMaxLat = cBounds.getNorthEast().lat();
var cMaxLon = cBounds.getNorthEast().lng();
var centerLat = self.map.getCenter().lat();
var centerLon = self.map.getCenter().lng();
if((cMaxLat - cMinLat > maxLat - minLat) || (cMaxLon - cMinLon > maxLon - minLon))
{ //We can't position the canvas to strict borders with a current zoom level
self.map.setZoomLevel(self.map.getZoomLevel()+1);
return;
}
if(cMinLat < minLat)
var newCenterLat = minLat + ((cMaxLat-cMinLat) / 2);
else if(cMaxLat > maxLat)
var newCenterLat = maxLat - ((cMaxLat-cMinLat) / 2);
else
var newCenterLat = centerLat;
if(cMinLon < minLon)
var newCenterLon = minLon + ((cMaxLon-cMinLon) / 2);
else if(cMaxLon > maxLon)
var newCenterLon = maxLon - ((cMaxLon-cMinLon) / 2);
else
var newCenterLon = centerLon;
if(newCenterLat != centerLat || newCenterLon != centerLon)
self.map.setCenter(new google.maps.LatLng(newCenterLat, newCenterLon));
});
strictBounds
is an object of new google.maps.LatLngBounds()
type. self.gmap
stores a Google Map object (new google.maps.Map()
).
It really works but don't only forget to take into account the haemorrhoids with crossing 0th meridians and parallels if your bounds cover them.
This is one of the basic differences not mentioned in previous comments:
Readonly
property will work with textbox for and it will not work with EditorFor
.
@Html.TextBoxFor(model => model.DateSoldOn, new { @readonly = "readonly" })
Above code works, where as with following you can't make control to readonly.
@Html.EditorFor(model => model.DateSoldOn, new { @readonly = "readonly" })
The low-cost method, regardless of the vendor implementation, would be to select something from the process memory or the server memory, like the DB version or the name of the current database. IsClosed is very poorly implemented.
Example:
java.sql.Connection conn = <connect procedure>;
conn.close();
try {
conn.getMetaData();
} catch (Exception e) {
System.out.println("Connection is closed");
}
In [5]: set(df.Col1).union(set(df.Col2))
Out[5]: {'Bill', 'Bob', 'Joe', 'Mary', 'Steve'}
Or:
set(df.Col1) | set(df.Col2)
The code I ended up using. I think this is the best so far:
def tail(f, n, offset=None):
"""Reads a n lines from f with an offset of offset lines. The return
value is a tuple in the form ``(lines, has_more)`` where `has_more` is
an indicator that is `True` if there are more lines in the file.
"""
avg_line_length = 74
to_read = n + (offset or 0)
while 1:
try:
f.seek(-(avg_line_length * to_read), 2)
except IOError:
# woops. apparently file is smaller than what we want
# to step back, go to the beginning instead
f.seek(0)
pos = f.tell()
lines = f.read().splitlines()
if len(lines) >= to_read or pos == 0:
return lines[-to_read:offset and -offset or None], \
len(lines) > to_read or pos > 0
avg_line_length *= 1.3
If you mean the location where you will add it in the layout. You can define a container like a FrameLayout and add this EditText to it when it is created.
<LinearLayout xmlns=".."/>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/container" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
FrameLayout layout = (FrameLayout) findViewById(R.id.container);
layout.addView(name);
SRC = a.cpp b.cpp
BIN = $(patsubst %.cpp,%,$(SRC))
all: $(BIN)
clean:
rm -f $(BIN)
.PHONY: all clean
make all
will do:
c++ a.cpp -o a
c++ b.cpp -o b
If you set CXX
and CXXFLAGS
variables make
will use them.
For those that want it ISO 8601 compliant, since the other solutions do not have the T
separator nor the time offset (except Meistro's answer):
from datetime import datetime, timezone
result = datetime.fromtimestamp(1463288494, timezone.utc).isoformat('T', 'microseconds')
print(result) # 2016-05-15T05:01:34.000000+00:00
Note, I use fromtimestamp
because if I used utcfromtimestamp
I would need to chain on .astimezone(...)
anyway to get the offset.
If you don't want to go all the way to microseconds
you can choose a different unit with the
isoformat() method.
Another handy difference (in English where accents are uncommon) is that an InvariantCulture comparison compares the entire strings by case-insensitive first, and then if necessary (and requested) distinguishes by case after first comparing only on the distinct letters. (You can also do a case-insensitive comparison, of course, which won't distinguish by case.) Corrected: Accented letters are considered to be another flavor of the same letters and the string is compared first ignoring accents and then accounting for them if the general letters all match (much as with differing case except not ultimately ignored in a case-insensitive compare). This groups accented versions of the otherwise same word near each other instead of completely separate at the first accent difference. This is the sort order you would typically find in a dictionary, with capitalized words appearing right next to their lowercase equivalents, and accented letters being near the corresponding unaccented letter.
An ordinal comparison compares strictly on the numeric character values, stopping at the first difference. This sorts capitalized letters completely separate from the lowercase letters (and accented letters presumably separate from those), so capitalized words would sort nowhere near their lowercase equivalents.
InvariantCulture also considers capitals to be greater than lower case, whereas Ordinal considers capitals to be less than lowercase (a holdover of ASCII from the old days before computers had lowercase letters, the uppercase letters were allocated first and thus had lower values than the lowercase letters added later).
For example, by Ordinal: "0" < "9" < "A" < "Ab" < "Z" < "a" < "aB" < "ab" < "z" < "Á" < "Áb" < "á" < "áb"
And by InvariantCulture: "0" < "9" < "a" < "A" < "á" < "Á" < "ab" < "aB" < "Ab" < "áb" < "Áb" < "z" < "Z"
Java DB (Sun's distribution of Apache Derby) now ships in JDK 6!
I've been wanted to do something like Jason Cohen and have been thinking this looks like the easiest way being in the JDK distro (which of last week is now a requirement for my app). Or maybe I am just lazy that way.
If you know which column to search against, you can use array_search() and array_column():
$userdb = Array
(
(0) => Array
(
('uid') => '100',
('name') => 'Sandra Shush',
('url') => 'urlof100'
),
(1) => Array
(
('uid') => '5465',
('name') => 'Stefanie Mcmohn',
('url') => 'urlof5465'
),
(2) => Array
(
('uid') => '40489',
('name') => 'Michael',
('url') => 'urlof40489'
)
);
if(array_search('urlof5465', array_column($userdb, 'url')) !== false) {
echo 'value is in multidim array';
}
else {
echo 'value is not in multidim array';
}
This idea is in the comments section for array_search() on the PHP manual;
You can hit the key q (for quit) and it should take you to the prompt.
Please see this link.
I'm not able to understand the flow of execution of the program, And when ob1 is created then the constructor is called where t.start() is written but still run() method is not executed rather main() method continues execution. So why is this happening?
This depends on Thread Scheduler as main shares the same priority order. Calling start() doesn't mean run() will be called immediately, it depends on thread scheduler when it chooses to run your thread.
join() method is used to wait until the thread on which it is called does not terminates, but here in output we see alternate outputs of the thread why??
This is because of the Thread.sleep(1000) in your code. Remove that line and you will see ob1 finishes before ob2 which in turn finishes before ob3 (as expected with join()). Having said that it all depends on when ob1 ob2 and ob3 started. Calling sleep will pause thread execution for >= 1 second (in your code), giving scheduler a chance to call other threads waiting (same priority).
If MyCollection
is going to be garbage collected anyway, then you shouldn't need to dispose it. Doing so will just churn the CPU more than necessary, and may even invalidate some pre-calculated analysis that the garbage collector has already performed.
I use IDisposable
to do things like ensure threads are disposed correctly, along with unmanaged resources.
EDIT In response to Scott's comment:
The only time the GC performance metrics are affected is when a call the [sic] GC.Collect() is made"
Conceptually, the GC maintains a view of the object reference graph, and all references to it from the stack frames of threads. This heap can be quite large and span many pages of memory. As an optimisation, the GC caches its analysis of pages that are unlikely to change very often to avoid rescanning the page unnecessarily. The GC receives notification from the kernel when data in a page changes, so it knows that the page is dirty and requires a rescan. If the collection is in Gen0 then it's likely that other things in the page are changing too, but this is less likely in Gen1 and Gen2. Anecdotally, these hooks were not available in Mac OS X for the team who ported the GC to Mac in order to get the Silverlight plug-in working on that platform.
Another point against unnecessary disposal of resources: imagine a situation where a process is unloading. Imagine also that the process has been running for some time. Chances are that many of that process's memory pages have been swapped to disk. At the very least they're no longer in L1 or L2 cache. In such a situation there is no point for an application that's unloading to swap all those data and code pages back into memory to 'release' resources that are going to be released by the operating system anyway when the process terminates. This applies to managed and even certain unmanaged resources. Only resources that keep non-background threads alive must be disposed, otherwise the process will remain alive.
Now, during normal execution there are ephemeral resources that must be cleaned up correctly (as @fezmonkey points out database connections, sockets, window handles) to avoid unmanaged memory leaks. These are the kinds of things that have to be disposed. If you create some class that owns a thread (and by owns I mean that it created it and therefore is responsible for ensuring it stops, at least by my coding style), then that class most likely must implement IDisposable
and tear down the thread during Dispose
.
The .NET framework uses the IDisposable
interface as a signal, even warning, to developers that the this class must be disposed. I can't think of any types in the framework that implement IDisposable
(excluding explicit interface implementations) where disposal is optional.
If you are trying to setup a key for using git with ssh, there's always an option to add a configuration for the identity file.
vi ~/.ssh/config
Host example.com
IdentityFile ~/.ssh/example_key
I resolved this issue by correcting an error with my Global.asax file arrangement. I had copied across the files from another project and failed to embed the Global.asax.cs within the Global.asax file (both files previously existed at the same level).
The simplest way is:
const { exec } = require("child_process")
exec('yourApp').unref()
unref is necessary to end your process without waiting for "yourApp"
Here are the exec docs
In my experience over the past few months, I've realized that the best way to achieve this is:
class App extends React.Component{
constructor(){
super();
this.state = {
serverResponse: ''
}
}
componentDidMount(){
this.getData();
}
async getData(){
const res = await axios.get('url-to-get-the-data');
const { data } = await res;
this.setState({serverResponse: data})
}
render(){
return(
<div>
{this.state.serverResponse}
</div>
);
}
}
If you are trying to make post request on events such as click, then call getData()
function on the event and replace the content of it like so:
async getData(username, password){
const res = await axios.post('url-to-post-the-data', {
username,
password
});
...
}
Furthermore, if you are making any request when the component is about to load then simply replace async getData()
with async componentDidMount()
and change the render function like so:
render(){
return (
<div>{this.state.serverResponse}</div>
)
}
Just give them the same name throughout the form you are using.
<form><input type="radio" name="selection">
<input type="radio" name="selection">
..
..
</form>
I had this problem on Windows 7. My situation is this through SDK Manager. I only download API 19 but I had not downloaded related Android SDK build-tools. So it occur this problem.
I went through SDK Manager download build-tools 19 to fix it. Hope to give you help.
You can easily pick image from asset without UIImage(named: "green-square-Retina")
.
Instead use the image object directly from bundle.
Start typing the image name and you will get suggestions with actual image from bundle. It is advisable practice and less prone to error.
See this Stackoverflow answer for reference.
Yes, we can use jQuery in ReactJs. Here I will tell how we can use it using npm.
step 1: Go to your project folder where the package.json
file is present via using terminal using cd command.
step 2: Write the following command to install jquery using npm : npm install jquery --save
step 3: Now, import $
from jquery
into your jsx file where you need to use.
Example:
write the below in index.jsx
import React from 'react';
import ReactDOM from 'react-dom';
import $ from 'jquery';
// react code here
$("button").click(function(){
$.get("demo_test.asp", function(data, status){
alert("Data: " + data + "\nStatus: " + status);
});
});
// react code here
write the below in index.html
<!DOCTYPE html>
<html>
<head>
<script src="index.jsx"></script>
<!-- other scripting files -->
</head>
<body>
<!-- other useful tags -->
<div id="div1">
<h2>Let jQuery AJAX Change This Text</h2>
</div>
<button>Get External Content</button>
</body>
</html>
We pull in content frequently from our CMS as [innerHTML]="content.title"
. We place the necessary classes in the application's root styles.scss
file rather than in the component's scss file. Our CMS purposely strips out in-line styles so we must have prepared classes that the author can use in their content. Remember using {{content.title}}
in the template will not render html from the content.
I've simplified clone45 steps:
Open the ports as he mentioned
sudo su
sudo yum install vsftpd
echo -n "Public IP of your instance: " && read publicip
echo -e "anonymous_enable=NO\npasv_enable=YES\npasv_min_port=1024\npasv_max_port=1048\npasv_address=$publicip\nchroot_local_user=YES" >> /etc/vsftpd/vsftpd.conf
sudo /etc/init.d/vsftpd restart
Use the AWS EC2 console, not ElasticFox.
First Way:
Alternative Way:
Shortest path between A <-> B is a straight line;
import sys
if not 'NEW_PATH' in sys.path:
sys.path += ['NEW_PATH']
try this:-
select to_char(to_date('01/10/2017','dd/mm/yyyy'),'fmMonth fmDD,YYYY') from dual;
select to_char(sysdate,'fmMonth fmDD,YYYY') from dual;
Or even just:
<div id="full-size">
Your contents go here
</div>
html,body{ margin:0; padding:0; height:100%; width:100%; }
#full-size{
height:100%;
width:100%;
overflow:hidden; /* or overflow:auto; if you want scrollbars */
}
(html, body can be set to like.. 95%-99% or some such to account for slight inconsistencies in margins, etc.)
I find it easier to remember to just read it and then write it.
For example:
with open('file') as f:
data = f.read()
with open('file', 'w') as f:
f.write('hello')
A slightly more complete example of scope:
from __future__ import print_function # for python 2 support
x = 100
print("1. Global x:", x)
class Test(object):
y = x
print("2. Enclosed y:", y)
x = x + 1
print("3. Enclosed x:", x)
def method(self):
print("4. Enclosed self.x", self.x)
print("5. Global x", x)
try:
print(y)
except NameError as e:
print("6.", e)
def method_local_ref(self):
try:
print(x)
except UnboundLocalError as e:
print("7.", e)
x = 200 # causing 7 because has same name
print("8. Local x", x)
inst = Test()
inst.method()
inst.method_local_ref()
output:
1. Global x: 100
2. Enclosed y: 100
3. Enclosed x: 101
4. Enclosed self.x 101
5. Global x 100
6. global name 'y' is not defined
7. local variable 'x' referenced before assignment
8. Local x 200
I install go launcher on mine, (Windows 8)=> preferences => Screens => Screen orientation => vertical (disable QWE keyboard)
About promise composition vs. Rxjs, as this is a frequently asked question, you can refer to a number of previously asked questions on SO, among which :
Basically, flatMap
is the equivalent of Promise.then
.
For your second question, do you want to replay values already emitted, or do you want to process new values as they arrive? In the first case, check the publishReplay
operator. In the second case, standard subscription is enough. However you might need to be aware of the cold. vs. hot dichotomy depending on your source (cf. Hot and Cold observables : are there 'hot' and 'cold' operators? for an illustrated explanation of the concept)
string content = System.IO.File.ReadAllText( @"C:\file.txt" );
curl is a command in linux (and a library in php). Curl typically makes an HTTP request.
What you really want to do is make an HTTP (or XHR) request from javascript.
Using this vocab you'll find a bunch of examples, for starters: Sending authorization headers with jquery and ajax
Essentially you will want to call $.ajax
with a few options for the header, etc.
$.ajax({
url: 'https://api.wit.ai/message?v=20140826&q=',
beforeSend: function(xhr) {
xhr.setRequestHeader("Authorization", "Bearer 6QXNMEMFHNY4FJ5ELNFMP5KRW52WFXN5")
}, success: function(data){
alert(data);
//process the JSON data etc
}
})
For renaming your index you can use Elasticsearch Snapshot module.
First you have to take snapshot of your index.while restoring it you can rename your index.
POST /_snapshot/my_backup/snapshot_1/_restore
{
"indices": "jal",
"ignore_unavailable": "true",
"include_global_state": false,
"rename_pattern": "jal",
"rename_replacement": "jal1"
}
rename_replacement :-New indexname in which you want backup your data.
This means you are mapping a column twice in your entity class. Explaining with an example...
@Column(name = "column1")
private String object1;
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "column1", referencedColumnName = "column1")
private TableClass object2;
The problem in the above code snippet is we are repeating mapping...
Solution
Since mapping is an important part, you don't want to remove that. Instead, you will remove
@Column(name = "column1")
private String uniqueId;
You can still pass the value of object1 by creating a object of TableClass and assign the String value of Object1 in it.
This works 100%. I have tested this with Postgres and Oracle database.
Just use \w
or [:alpha:]
. It is an escape sequences which matches only symbols which might appear in words.
Ok, so I'm sorry but most of these answers are incomplete or have some minor bug in them. The very complete answer from @austyn-mahoney is correct and the source for this answer, but it's complicated and you probably just want to style a switch. 'Styling' controls across different versions of Android is an epic pain in the ass. After pulling my hair out for days on a project with very tight design constraints I finally broke down and wrote a test app and then really dug in and tested the various solutions out there for styling switches and check-boxes, since when a design has one it frequently has the other. Here's what I found...
First: You can't actually style either of them, but you can apply a theme to all of them, or just one of them.
Second: You can do it all from XML and you don't need a second values-v21/styles.xml.
Third: when it comes to switches you have two basic choices if you want to support older versions of Android (like I'm sure you do)...
SwitchCompat
and you will be able to make it look the same across platforms.Switch
and you will be able to theme it with the rest of your theme, or just that particular switch and on older versions of Android you'll just see an unstyled older square switch.Ok now for the simple reference code. Again if you create a simple Hello World! and drop this code in you can play to your hearts content. All of that is boiler plate here so I'm just going to include the XML for the activity and the style...
activity_main.xml...
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.kunai.switchtest.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="'Styled' SwitchCompat" />
<android.support.v7.widget.SwitchCompat
android:id="@+id/switch_item"
android:layout_width="wrap_content"
android:layout_height="46dp"
android:layout_alignParentEnd="true"
android:layout_marginEnd="16dp"
android:checked="true"
android:longClickable="false"
android:textOff="OFF"
android:textOn="ON"
app:switchTextAppearance="@style/BrandedSwitch.text"
app:theme="@style/BrandedSwitch.control"
app:showText="true" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.kunai.switchtest.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Themed SwitchCompat" />
<android.support.v7.widget.SwitchCompat
android:id="@+id/switch_item2"
android:layout_width="wrap_content"
android:layout_height="46dp"
android:layout_alignParentEnd="true"
android:layout_marginEnd="16dp"
android:checked="true"
android:longClickable="false" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.kunai.switchtest.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Themed Switch" />
<Switch
android:id="@+id/switch_item3"
android:layout_width="wrap_content"
android:layout_height="46dp"
android:layout_alignParentEnd="true"
android:layout_marginEnd="16dp"
android:checked="true"
android:longClickable="false"
android:textOff="OFF"
android:textOn="ON"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.kunai.switchtest.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="'Styled' Switch" />
<Switch
android:id="@+id/switch_item4"
android:layout_width="wrap_content"
android:layout_height="46dp"
android:layout_alignParentEnd="true"
android:layout_marginEnd="16dp"
android:checked="true"
android:longClickable="false"
android:textOff="OFF"
android:textOn="ON"
android:theme="@style/BrandedSwitch"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.kunai.switchtest.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="'Styled' CheckBox" />
<CheckBox
android:id="@+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="46dp"
android:layout_alignParentEnd="true"
android:layout_marginEnd="16dp"
android:checked="true"
android:longClickable="false"
android:theme="@style/BrandedCheckBox"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.kunai.switchtest.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Themed CheckBox" />
<CheckBox
android:id="@+id/checkbox2"
android:layout_width="wrap_content"
android:layout_height="46dp"
android:layout_alignParentEnd="true"
android:layout_marginEnd="16dp"
android:checked="true"
android:longClickable="false"/>
</RelativeLayout>
styles.xml...
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#3F51B5</item>
<item name="colorPrimaryDark">#303F9F</item>
<item name="colorAccent">#FF4081</item>
</style>
<style name="BrandedSwitch.control" parent="Theme.AppCompat.Light">
<!-- active thumb & track color (30% transparency) -->
<item name="colorControlActivated">#e6e600</item>
<item name="colorSwitchThumbNormal">#cc0000</item>
</style>
<style name="BrandedSwitch.text" parent="Theme.AppCompat.Light">
<item name="android:textColor">#ffa000</item>
<item name="android:textSize">9dp</item>
</style>
<style name="BrandedCheckBox" parent="AppTheme">
<item name="colorAccent">#aaf000</item>
<item name="colorControlNormal">#ff0000</item>
</style>
<style name="BrandedSwitch" parent="AppTheme">
<item name="colorAccent">#39ac39</item>
</style>
I know, I know, you are too lazy to build this, you just want to get your code written and check it in so you can close this pain in the ass Android compatibility nightmare bug so that the designer on your team will finally be happy. I get it. Here's what it looks like when you run it...
API_21:
API_18:
Rather than explaining the theoretical part, I'll give a simple example.
>>> from collections import OrderedDict
>>> my_dictionary=OrderedDict()
>>> my_dictionary['foo']=3
>>> my_dictionary['aol']=1
>>> my_dictionary
OrderedDict([('foo', 3), ('aol', 1)])
>>> dict(my_dictionary)
{'foo': 3, 'aol': 1}
If you don't want to change the value of the original variable after passing it into a function, the function should be constructed with a "pass by value" parameter.
Then the function will have ONLY the value but not the address of the passed in variable. Without the variable's address, the code inside the function cannot change the variable value as seen from the outside of the function.
But if you want to give the function the ability to change the value of the variable as seen from the outside, you need to use pass by reference. As both the value and the address (reference) are passed in and available inside the function.
IMHO most compatible with older browsers
Array.prototype.inArray = function( needle ){
return Array(this).join(",").indexOf(needle) >-1;
}
var foods = ["Cheese","Onion","Pickle","Ham"];
test = foods.inArray("Lemon");
console.log( "Lemon is " + (test ? "" : "not ") + "in the list." );
By turning an Array copy in to a CSV string, you can test the string in older browsers.
Using Modern JavaScript function syntax
const getDaysPastDate = (daysBefore, date = new Date) => new Date(date - (1000 * 60 * 60 * 24 * daysBefore));_x000D_
_x000D_
console.log(getDaysPastDate(1)); // yesterday
_x000D_
This should work:
// http://www.onicos.com/staff/iz/amuse/javascript/expert/utf.txt
/* utf.js - UTF-8 <=> UTF-16 convertion
*
* Copyright (C) 1999 Masanao Izumo <[email protected]>
* Version: 1.0
* LastModified: Dec 25 1999
* This library is free. You can redistribute it and/or modify it.
*/
function Utf8ArrayToStr(array) {
var out, i, len, c;
var char2, char3;
out = "";
len = array.length;
i = 0;
while(i < len) {
c = array[i++];
switch(c >> 4)
{
case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
// 0xxxxxxx
out += String.fromCharCode(c);
break;
case 12: case 13:
// 110x xxxx 10xx xxxx
char2 = array[i++];
out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
break;
case 14:
// 1110 xxxx 10xx xxxx 10xx xxxx
char2 = array[i++];
char3 = array[i++];
out += String.fromCharCode(((c & 0x0F) << 12) |
((char2 & 0x3F) << 6) |
((char3 & 0x3F) << 0));
break;
}
}
return out;
}
It's somewhat cleaner as the other solutions because it doesn't use any hacks nor depends on Browser JS functions, e.g. works also in other JS environments.
Check out the JSFiddle demo.
If you are using express
you can use the cors package to allow CORS like so instead of writing your middleware;
var express = require('express')
, cors = require('cors')
, app = express();
app.use(cors());
app.get(function(req,res){
res.send('hello');
});
The answer has been covered, but for simplicity...
# To filter out finished threads
threads = [t for t in threads if t.is_alive()]
# Same thing but for QThreads (if you are using PyQt)
threads = [t for t in threads if t.isRunning()]
int sum=0;
for(int i:A)
sum+=i;
That's right, but it doesn't change it permanently, but just for current command prompt, if you wanna to change it permanently you have to use for example this:
setx ENV_VAR_NAME "DESIRED_PATH" /m
This will change it permanently and yes you can overwrite it by another batch script.
You can manual disable ssl verfiy, and try again. :)
git config --global http.sslverify false
you are better off with a decompiler like redgates .net reflector or jetbrains resharper decompiler. there are open source ones also like
First, you'll want to ensure the directory to your native library is on the java.library.path
. See how to do that here. Then, you can call System.loadLibrary(nativeLibraryNameWithoutExtension)
- making sure to not include the file extension in the name of your library.
I use the following static helper method to retrieve the IP of a client:
public static String getClientIpAddr(HttpServletRequest request) {
String ip = request.getHeader("X-Forwarded-For");
if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {
ip = request.getHeader("Proxy-Client-IP");
}
if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {
ip = request.getHeader("WL-Proxy-Client-IP");
}
if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {
ip = request.getHeader("HTTP_X_FORWARDED_FOR");
}
if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {
ip = request.getHeader("HTTP_X_FORWARDED");
}
if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {
ip = request.getHeader("HTTP_X_CLUSTER_CLIENT_IP");
}
if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {
ip = request.getHeader("HTTP_CLIENT_IP");
}
if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {
ip = request.getHeader("HTTP_FORWARDED_FOR");
}
if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {
ip = request.getHeader("HTTP_FORWARDED");
}
if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {
ip = request.getHeader("HTTP_VIA");
}
if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {
ip = request.getHeader("REMOTE_ADDR");
}
if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {
ip = request.getRemoteAddr();
}
return ip;
}
The correct answer for traditional Spring architectures is to place transactional semantics on the service classes, for the reasons that others have already described.
An emerging trend in Spring is toward domain-driven design (DDD). Spring Roo exemplifies the trend nicely. The idea is to make the domain object POJOs a lot richer than they are on typical Spring architectures (usually they are anemic), and in particular to put transaction and persistence semantics on the domain objects themselves. In cases where all that's needed is simple CRUD operations, the web controllers operate directly on the domain object POJOs (they're functioning as entities in this context), and there's no service tier. In cases where there's some kind of coordination needed between domain objects, you can have a service bean handle that, with @Transaction
as per tradition. You can set the transaction propagation on the domain objects to something like REQUIRED
so that the domain objects use any existing transactions, such as transactions that were started at the service bean.
Technically this technique makes use of AspectJ and <context:spring-configured />
. Roo uses AspectJ inter-type definitions to separate the entity semantics (transactions and persistence) from the domain object stuff (basically fields and business methods).
//convert month to 2 digits<p>
var twoDigitMonth = ((fullDate.getMonth().length+1) === 1)? (fullDate.getMonth()+1) : '0' + (fullDate.getMonth()+1);
var currentDate = fullDate.getFullYear()+ "/" + twoDigitMonth + "/" + fullDate.getDate();
console.log(currentDate);<br>
//2011/05/19
try this:
#outer {
width:500px;
height:200px;
background:#FFCCCC;
margin:50px auto 0 auto;
display:table;
}
#inner {
background:#FFCC33;
margin:50px 50px 50px 50px;
padding:10px;
display:block;
}?
Good luck
As explained here, in the context of main
both return
and exit
do the same thing
Q: Why do we need to return
or exit
?
A: To indicate execution status.
In your example even if you didnt have return or exit statements the code would run fine (Assuming everything else is syntactically,etc-ally correct. Also, if (and it should be) main
returns int
you need that return 0
at the end).
But, after execution you don't have a way to find out if your code worked as expected.
You can use the return code of the program (In *nix environments , using $?
) which gives you the code (as set by exit
or return
) . Since you set these codes yourself you understand at which point the code reached before terminating.
You can write return 123
where 123
indicates success in the post execution checks.
Usually, in *nix environments 0
is taken as success and non-zero codes as failures.
You can also use query scopes to make things a bit tidier, so you can do something like:
Invoice::where('account', 27)->notPaidAt($date)->get();
Then in your model
public function scopeNotPaidAt($query, $asAt)
{
$query = $query->where(function ($query) use ($asAt) {
$query->where('paid', '=', '0000-00-00')->orWhere('paid', '>=', $asAt);
});
return $query;
}
:: GetDate.cmd -> Uses WMIC.exe to get current date and time in ISO 8601 format
:: - Sets environment variables %_isotime% and %_now% to current time
:: - On failure, clears these environment variables
:: Inspired on -> https://ss64.com/nt/syntax-getdate.html
:: - (cX) 2017 [email protected]
:: - http://stackoverflow.com/questions/203090
@echo off
set _isotime=
set _now=
:: Check that WMIC.exe is available
WMIC.exe Alias /? >NUL 2>&1 || goto _WMIC_MISSING_
if not (%1)==() goto _help
SetLocal EnableDelayedExpansion
:: Use WMIC.exe to retrieve date and time
FOR /F "skip=1 tokens=1-6" %%G IN ('WMIC.exe Path Win32_LocalTime Get Day^,Hour^,Minute^,Month^,Second^,Year /Format:table') DO (
IF "%%~L"=="" goto _WMIC_done_
set _yyyy=%%L
set _mm=00%%J
set _dd=00%%G
set _hour=00%%H
set _minute=00%%I
set _second=00%%K
)
:_WMIC_done_
:: 1 2 3 4 5 6
:: %%G %%H %%I %%J %%K %%L
:: Day Hour Minute Month Second Year
:: 27 9 35 4 38 2017
:: Remove excess leading zeroes
set _mm=%_mm:~-2%
set _dd=%_dd:~-2%
set _hour=%_hour:~-2%
set _minute=%_minute:~-2%
set _second=%_second:~-2%
:: Syntax -> %variable:~num_chars_to_skip,num_chars_to_keep%
:: Set date/time in ISO 8601 format:
Set _isotime=%_yyyy%-%_mm%-%_dd%T%_hour%:%_minute%:%_second%
:: -> http://google.com/search?num=100&q=ISO+8601+format
if 1%_hour% LSS 112 set _now=%_isotime:~0,10% %_hour%:%_minute%:%_second%am
if 1%_hour% LSS 112 goto _skip_12_
set /a _hour=1%_hour%-12
set _hour=%_hour:~-2%
set _now=%_isotime:~0,10% %_hour%:%_minute%:%_second%pm
:: -> https://ss64.com/nt/if.html
:: -> http://google.com/search?num=100&q=SetLocal+EndLocal+Windows
:: 'if () else ()' will NOT set %_now% correctly !?
:_skip_12_
EndLocal & set _isotime=%_isotime% & set _now=%_now%
goto _out
:_WMIC_MISSING_
echo.
echo WMIC.exe command not available
echo - WMIC.exe needs Administrator privileges to run in Windows
echo - Usually the path to WMIC.exe is "%windir%\System32\wbem\WMIC.exe"
:_help
echo.
echo GetDate.cmd: Uses WMIC.exe to get current date and time in ISO 8601 format
echo.
echo %%_now%% environment variable set to current date and time
echo %%_isotime%% environment variable to current time in ISO format
echo set _today=%%_isotime:~0,10%%
echo.
:_out
:: EOF: GetDate.cmd
If you have many columns and want to print all but not the three cloumns in the last, then this might help
awk '{ $NF="";$(NF-1)="";$(NF-2)="" ; print $0 }'
In my case I had to specify proxy settings in Tools->Options.
I found most if not all of these answers rely on the underlying class (Object) to implement comparable or to have a helper comparable interface.
Not with my solution! The following code lets you compare object's field by knowing their string name. You could easily modify it not to use the name, but then you need to expose it or construct one of the Objects you want to compare against.
Collections.sort(anArrayListOfSomeObjectPerhapsUsersOrSomething, new ReflectiveComparator(). new ListComparator("name"));
public class ReflectiveComparator {
public class FieldComparator implements Comparator<Object> {
private String fieldName;
public FieldComparator(String fieldName){
this.fieldName = fieldName;
}
@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
public int compare(Object object1, Object object2) {
try {
Field field = object1.getClass().getDeclaredField(fieldName);
field.setAccessible(true);
Comparable object1FieldValue = (Comparable) field.get(object1);
Comparable object2FieldValue = (Comparable) field.get(object2);
return object1FieldValue.compareTo(object2FieldValue);
}catch (Exception e){}
return 0;
}
}
public class ListComparator implements Comparator<Object> {
private String fieldName;
public ListComparator(String fieldName) {
this.fieldName = fieldName;
}
@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
public int compare(Object object1, Object object2) {
try {
Field field = object1.getClass().getDeclaredField(fieldName);
field.setAccessible(true);
Comparable o1FieldValue = (Comparable) field.get(object1);
Comparable o2FieldValue = (Comparable) field.get(object2);
if (o1FieldValue == null){ return -1;}
if (o2FieldValue == null){ return 1;}
return o1FieldValue.compareTo(o2FieldValue);
} catch (NoSuchFieldException e) {
throw new IllegalStateException("Field doesn't exist", e);
} catch (IllegalAccessException e) {
throw new IllegalStateException("Field inaccessible", e);
}
}
}
}
You are testing against the string minus the last character:
>>> '"xxx"'[:-1]
'"xxx'
Note how the last character, the "
, is not part of the output of the slice.
I think you wanted just to test against the last character; use [-1:]
to slice for just the last element.
However, there is no need to slice here; just use str.startswith()
and str.endswith()
directly.
Add this to an htaccess file (and see edit notes added below):
<IfModule mod_php5.c>
php_value post_max_size 200M
php_value upload_max_filesize 200M
php_value memory_limit 300M
php_value max_execution_time 259200
php_value max_input_time 259200
php_value session.gc_maxlifetime 1200
</IfModule>
Additional resources and information:
2021 EDIT:
As PHP and Apache evolve and grow, I think it is important for me to take a moment to mention a few things to consider and possible "gotchas" to consider:
<IfModule
is loaded.mod_php5.c
in the first line. If you are using PHP 7, you would replace that with mod_php7.c
.php.ini
config file(s). This method is usually only useful in the event your hosting provider does not give you access to change those files. In circumstances where you can edit the PHP configuration, it is recommended that you apply these settings there.Try this piece of code, it should work too
<%
//response.setContentType("Content-Type", "application/json"); // this will fail compilation
response.setContentType("application/json"); //fixed
%>
Both will works perfectly in mysqli_fetch_array in while loops
while($row = mysqli_fetch_array($result,MYSQLI_BOTH)) {
$posts[] = $row['post_id'].$row['post_title'].$row['content'];
}
(OR)
while($row = mysqli_fetch_array($result,MYSQLI_ASSOC)) {
$posts[] = $row['post_id'].$row['post_title'].$row['content'];
}
mysqli_fetch_array() - has second argument $resulttype.
MYSQLI_ASSOC: Fetch associative array
MYSQLI_NUM: Fetch numeric array
MYSQLI_BOTH: Fetch both associative and numeric array.
Simply can be used:
SELECT RIGHT('0' + CAST(MONTH(@Date) AS NVARCHAR(2)), 2)
For merging first branch to second one:
on first branch: git merge secondBranch
on second branch: Move to first branch-> git checkout firstBranch-> git merge secondBranch
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
//foreach (var relationship in modelBuilder.Model.GetEntityTypes().SelectMany(e => e.GetForeignKeys()))
// relationship.DeleteBehavior = DeleteBehavior.Restrict;
modelBuilder.Entity<User>().ToTable("Users");
modelBuilder.Entity<IdentityRole<string>>().ToTable("Roles");
modelBuilder.Entity<IdentityUserToken<string>>().ToTable("UserTokens");
modelBuilder.Entity<IdentityUserClaim<string>>().ToTable("UserClaims");
modelBuilder.Entity<IdentityUserLogin<string>>().ToTable("UserLogins");
modelBuilder.Entity<IdentityRoleClaim<string>>().ToTable("RoleClaims");
modelBuilder.Entity<IdentityUserRole<string>>().ToTable("UserRoles");
}
}
If you only want to remove the last commit from the remote repository without messing up with your local repository, here's a one-liner:
git push origin +origin/master~:master
This uses the following syntax:
git push <remote> <refspec>
Here, <remote>
is origin
, and <refspec>
has the following structure:
+origin/master~:master
Details can be found in git-push(1)
. The preceding +
means "force push this ref", and the other part means "from origin/master~
to master
(of remote origin
)". It isn't hard to know that origin/master~
is the last commit before origin/master
, right?
I use ".hpp" for C++ headers and ".h" for C language headers. The ".hpp" reminds me that the file contains statements for the C++ language which are not valid for the C language, such as "class" declarations.
System.Environment.NewLine
is the constant you are looking for - http://msdn.microsoft.com/en-us/library/system.environment.newline.aspx which will provide environment specific combination that most programs on given OS will consider "next line of text".
In practice most of the text tools treat all variations that include \n
as "new line" and you can just use it in your text "foo\nbar"
. Especially if you are trying to construct multi-line format strings like $"V1 = {value1}\nV2 = {value2}\n"
. If you are building text with string concatenation consider using NewLine
. In any case make sure tools you are using understand output the way you want and you may need for example always use \r\n
irrespective of platform if editor of your choice can't correctly open files otherwise.
Note that WriteLine
methods use NewLine
so if you plan to write text with one these methods avoid using just \n
as resulting text may contain mix of \r\n
and just \n
which may confuse some tools and definitely does not look neat.
For historical background see Difference between \n and \r?
It overflows, because the number is negative.
Try this and it will work:
int n = (int) Long.parseLong("ffff8000", 16);
The default null value for a field is "not null". So you must set it to "null" before you can set that field value for any record to null. Then you can:
UPDATE `myTable` SET `myField` = null
This is tested on my Windows 7 64Bit machine.
Quite strange... I had the same issue - WHILE IntelliJ Idea (including the Android Plug-in) was working perfectly.
However, here is what I did to get Android Studio 1.0 working (no step missing -> maybe it will help programming beginners).
Just set up a new environment variable by...
JAVA_HOME
and set the value to your Java folder (like C:\Program Files\Java\jdk1.8.0_25
)PS: I don't know why some people writing about nuclear science when they want to explain how to set the Java path..
The accepted answer from @harlequin might work, but I spend 2 hours and could not build git package from source code.
However, Check the below link as this works for me.
The remote end hung up unexpectedly while git cloning
just update the http post buffer value
git config --global http.postBuffer 1048576000
I believe what you want to do is still to incude this js file in you html dom, if so then this apporach will work.
Example: //js file
$(document).ready(function(){
alert("jquery in js file");
});
//html dom
<body>
<!--some divs content--->
<script src=/path/to/jquery.js ></script>
<script src=/path/to/js.js ></script>
</body>
Another way is to use:
@model Tuple<LoginViewModel,RegisterViewModel>
I have explained how to use this method both in the view and controller for another example: Two models in one view in ASP MVC 3
In your case you could implement it using the following code:
In the view:
@using YourProjectNamespace.Models;
@model Tuple<LoginViewModel,RegisterViewModel>
@using (Html.BeginForm("Login1", "Auth", FormMethod.Post))
{
@Html.TextBoxFor(tuple => tuple.Item2.Name, new {@Name="Name"})
@Html.TextBoxFor(tuple => tuple.Item2.Email, new {@Name="Email"})
@Html.PasswordFor(tuple => tuple.Item2.Password, new {@Name="Password"})
}
@using (Html.BeginForm("Login2", "Auth", FormMethod.Post))
{
@Html.TextBoxFor(tuple => tuple.Item1.Email, new {@Name="Email"})
@Html.PasswordFor(tuple => tuple.Item1.Password, new {@Name="Password"})
}
Note that I have manually changed the Name attributes for each property when building the form. This needs to be done, otherwise it wouldn't get properly mapped to the method's parameter of type model when values are sent to the associated method for processing. I would suggest using separate methods to process these forms separately, for this example I used Login1 and Login2 methods. Login1 method requires to have a parameter of type RegisterViewModel and Login2 requires a parameter of type LoginViewModel.
if an actionlink is required you can use:
@Html.ActionLink("Edit", "Edit", new { id=Model.Item1.Id })
in the controller's method for the view, a variable of type Tuple needs to be created and then passed to the view.
Example:
public ActionResult Details()
{
var tuple = new Tuple<LoginViewModel, RegisterViewModel>(new LoginViewModel(),new RegisterViewModel());
return View(tuple);
}
or you can fill the two instances of LoginViewModel and RegisterViewModel with values and then pass it to the view.
DateTime dt1 = DateTime.Parse(maskedTextBox1.Text);
DateTime dt2 = DateTime.Parse(maskedTextBox2.Text);
TimeSpan span = dt2 - dt1;
int ms = (int)span.TotalMilliseconds;
The 'set Username="Username" ' is a temporary override that only exists as long as the cmd windows is still up, once it is killed off, the variable loses value. So i think the
System.getProperty("user.name");
is still a short and precise code to use.
The Doc of the npm defines that only tag/version can be specified after repo_url.
Here is the Doc: https://docs.npmjs.com/cli/install
For SQL Server
select *
from YourTable
where DateCol between getdate() and dateadd(d, 90, getdate())
Works in 2020
$response = Http::withHeaders([
'Content-Type' => 'application/json',
'Authorization'=> 'key='. $token,
])->post($url, [
'notification' => [
'body' => $request->summary,
'title' => $request->title,
'image' => 'http://'.request()->getHttpHost().$path,
],
'priority'=> 'high',
'data' => [
'click_action'=> 'FLUTTER_NOTIFICATION_CLICK',
'status'=> 'done',
],
'to' => '/topics/all'
]);
Prestaul's answer was helpful, but it didn't quite work for me. The jQuery way to select an object by id didn't work. I had to use
document.getElementById("a").className
instead of
$("#a").className
Sometimes it is helpful to avoid creating a compile-time dependency between two view controllers. Here's how you can do it without caring about the type of the destination view controller:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.destinationViewController respondsToSelector:@selector(setMyData:)]) {
[segue.destinationViewController performSelector:@selector(setMyData:)
withObject:myData];
}
}
So as long as your destination view controller declares a public property, e.g.:
@property (nonatomic, strong) MyData *myData;
you can set this property in the previous view controller as I described above.
This code work for me. I also handled case "Never Ask Me"
In AndroidManifest.xml
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
In build.gradle (Module: app)
dependencies {
....
implementation "com.google.android.gms:play-services-location:16.0.0"
}
This is CurrentLocationManager.kt
import android.Manifest
import android.app.Activity
import android.content.Context
import android.content.IntentSender
import android.content.pm.PackageManager
import android.location.Location
import android.location.LocationListener
import android.location.LocationManager
import android.os.Bundle
import android.os.CountDownTimer
import android.support.v4.app.ActivityCompat
import android.support.v4.content.ContextCompat
import android.util.Log
import com.google.android.gms.common.api.ApiException
import com.google.android.gms.common.api.CommonStatusCodes
import com.google.android.gms.common.api.ResolvableApiException
import com.google.android.gms.location.LocationRequest
import com.google.android.gms.location.LocationServices
import com.google.android.gms.location.LocationSettingsRequest
import com.google.android.gms.location.LocationSettingsStatusCodes
import java.lang.ref.WeakReference
object CurrentLocationManager : LocationListener {
const val REQUEST_CODE_ACCESS_LOCATION = 123
fun checkLocationPermission(activity: Activity) {
if (ContextCompat.checkSelfPermission(
activity,
Manifest.permission.ACCESS_FINE_LOCATION
) != PackageManager.PERMISSION_GRANTED
) {
ActivityCompat.requestPermissions(
activity,
arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),
REQUEST_CODE_ACCESS_LOCATION
)
} else {
Thread(Runnable {
// Moves the current Thread into the background
android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_BACKGROUND)
//
requestLocationUpdates(activity)
}).start()
}
}
/**
* be used in HomeActivity.
*/
const val REQUEST_CHECK_SETTINGS = 55
/**
* The number of millis in the future from the call to start().
* until the countdown is done and onFinish() is called.
*
*
* It is also the interval along the way to receive onTick(long) callbacks.
*/
private const val TWENTY_SECS: Long = 20000
/**
* Timer to get location from history when requestLocationUpdates don't return result.
*/
private var mCountDownTimer: CountDownTimer? = null
/**
* WeakReference of current activity.
*/
private var mWeakReferenceActivity: WeakReference<Activity>? = null
/**
* user's location.
*/
var currentLocation: Location? = null
@Synchronized
fun requestLocationUpdates(activity: Activity) {
if (mWeakReferenceActivity == null) {
mWeakReferenceActivity = WeakReference(activity)
} else {
mWeakReferenceActivity?.clear()
mWeakReferenceActivity = WeakReference(activity)
}
//create location request: https://developer.android.com/training/location/change-location-settings.html#prompt
val mLocationRequest = LocationRequest()
// Which your app prefers to receive location updates. Note that the location updates may be
// faster than this rate, or slower than this rate, or there may be no updates at all
// (if the device has no connectivity)
mLocationRequest.interval = 20000
//This method sets the fastest rate in milliseconds at which your app can handle location updates.
// You need to set this rate because other apps also affect the rate at which updates are sent
mLocationRequest.fastestInterval = 10000
mLocationRequest.priority = LocationRequest.PRIORITY_HIGH_ACCURACY
//Get Current Location Settings
val builder = LocationSettingsRequest.Builder().addLocationRequest(mLocationRequest)
//Next check whether the current location settings are satisfied
val client = LocationServices.getSettingsClient(activity)
val task = client.checkLocationSettings(builder.build())
//Prompt the User to Change Location Settings
task.addOnSuccessListener(activity) {
Log.d("CurrentLocationManager", "OnSuccessListener")
// All location settings are satisfied. The client can initialize location requests here.
// If it's failed, the result after user updated setting is sent to onActivityResult of HomeActivity.
val activity1 = mWeakReferenceActivity?.get()
if (activity1 != null) {
startRequestLocationUpdate(activity1.applicationContext)
}
}
task.addOnFailureListener(activity) { e ->
Log.d("CurrentLocationManager", "addOnFailureListener")
val statusCode = (e as ApiException).statusCode
when (statusCode) {
CommonStatusCodes.RESOLUTION_REQUIRED ->
// Location settings are not satisfied, but this can be fixed
// by showing the user a dialog.
try {
val activity1 = mWeakReferenceActivity?.get()
if (activity1 != null) {
// Show the dialog by calling startResolutionForResult(),
// and check the result in onActivityResult().
val resolvable = e as ResolvableApiException
resolvable.startResolutionForResult(
activity1, REQUEST_CHECK_SETTINGS
)
}
} catch (sendEx: IntentSender.SendIntentException) {
// Ignore the error.
sendEx.printStackTrace()
}
LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE -> {
// Location settings are not satisfied. However, we have no way
// to fix the settings so we won't show the dialog.
}
}
}
}
fun startRequestLocationUpdate(appContext: Context) {
val mLocationManager = appContext.getSystemService(Context.LOCATION_SERVICE) as LocationManager
if (ActivityCompat.checkSelfPermission(
appContext.applicationContext,
Manifest.permission.ACCESS_FINE_LOCATION
) == PackageManager.PERMISSION_GRANTED
) {
//Utilities.showProgressDialog(mWeakReferenceActivity.get());
if (mLocationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {
mLocationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER, 10000, 0f, this
)
} else {
mLocationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER, 10000, 0f, this
)
}
}
/*Timer to call getLastKnownLocation() when requestLocationUpdates don 't return result*/
countDownUpdateLocation()
}
override fun onLocationChanged(location: Location?) {
if (location != null) {
stopRequestLocationUpdates()
currentLocation = location
}
}
override fun onStatusChanged(provider: String, status: Int, extras: Bundle) {
}
override fun onProviderEnabled(provider: String) {
}
override fun onProviderDisabled(provider: String) {
}
/**
* Init CountDownTimer to to get location from history when requestLocationUpdates don't return result.
*/
@Synchronized
private fun countDownUpdateLocation() {
mCountDownTimer?.cancel()
mCountDownTimer = object : CountDownTimer(TWENTY_SECS, TWENTY_SECS) {
override fun onTick(millisUntilFinished: Long) {}
override fun onFinish() {
if (mWeakReferenceActivity != null) {
val activity = mWeakReferenceActivity?.get()
if (activity != null && ActivityCompat.checkSelfPermission(
activity,
Manifest.permission.ACCESS_FINE_LOCATION
) == PackageManager.PERMISSION_GRANTED
) {
val location = (activity.applicationContext
.getSystemService(Context.LOCATION_SERVICE) as LocationManager)
.getLastKnownLocation(LocationManager.PASSIVE_PROVIDER)
stopRequestLocationUpdates()
onLocationChanged(location)
} else {
stopRequestLocationUpdates()
}
} else {
mCountDownTimer?.cancel()
mCountDownTimer = null
}
}
}.start()
}
/**
* The method must be called in onDestroy() of activity to
* removeUpdateLocation and cancel CountDownTimer.
*/
fun stopRequestLocationUpdates() {
val activity = mWeakReferenceActivity?.get()
if (activity != null) {
/*if (ActivityCompat.checkSelfPermission(activity,
Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {*/
(activity.applicationContext
.getSystemService(Context.LOCATION_SERVICE) as LocationManager).removeUpdates(this)
/*}*/
}
mCountDownTimer?.cancel()
mCountDownTimer = null
}
}
In MainActivity.kt
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
...
CurrentLocationManager.checkLocationPermission(this@LoginActivity)
}
override fun onDestroy() {
CurrentLocationManager.stopRequestLocationUpdates()
super.onDestroy()
}
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
if (requestCode == CurrentLocationManager.REQUEST_CODE_ACCESS_LOCATION) {
if (grantResults[0] == PackageManager.PERMISSION_DENIED) {
//denied
val builder = AlertDialog.Builder(this)
builder.setMessage("We need permission to use your location for the purpose of finding friends near you.")
.setTitle("Device Location Required")
.setIcon(com.eswapp.R.drawable.ic_info)
.setPositiveButton("OK") { _, _ ->
if (ActivityCompat.shouldShowRequestPermissionRationale(
this,
Manifest.permission.ACCESS_FINE_LOCATION
)
) {
//only deny
CurrentLocationManager.checkLocationPermission(this@LoginActivity)
} else {
//never ask again
val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
val uri = Uri.fromParts("package", packageName, null)
intent.data = uri
startActivityForResult(intent, CurrentLocationManager.REQUEST_CHECK_SETTINGS)
}
}
.setNegativeButton("Ask Me Later") { _, _ ->
}
// Create the AlertDialog object and return it
val dialog = builder.create()
dialog.show()
} else if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
CurrentLocationManager.requestLocationUpdates(this)
}
}
}
//Forward Login result to the CallBackManager in OnActivityResult()
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
when (requestCode) {
//case 1. After you allow the app access device location, Another dialog will be displayed to request you to turn on device location
//case 2. Or You chosen Never Ask Again, you open device Setting and enable location permission
CurrentLocationManager.REQUEST_CHECK_SETTINGS -> when (resultCode) {
RESULT_OK -> {
Log.d("REQUEST_CHECK_SETTINGS", "RESULT_OK")
//case 1. You choose OK
CurrentLocationManager.startRequestLocationUpdate(applicationContext)
}
RESULT_CANCELED -> {
Log.d("REQUEST_CHECK_SETTINGS", "RESULT_CANCELED")
//case 1. You choose NO THANKS
//CurrentLocationManager.requestLocationUpdates(this)
//case 2. In device Setting screen: user can enable or not enable location permission,
// so when user back to this activity, we should re-call checkLocationPermission()
CurrentLocationManager.checkLocationPermission(this@LoginActivity)
}
else -> {
//do nothing
}
}
else -> {
super.onActivityResult(requestCode, resultCode, data)
}
}
}
In your case, you are creating an array on the stack and once you leave the function scope, the array will be deallocated. Instead, create a dynamically allocated array and return a pointer to it.
char * returnArray(char *arr, int size) {
char *new_arr = malloc(sizeof(char) * size);
for(int i = 0; i < size; ++i) {
new_arr[i] = arr[i];
}
return new_arr;
}
int main() {
char arr[7]= {1,0,0,0,0,1,1};
char *new_arr = returnArray(arr, 7);
// don't forget to free the memory after you're done with the array
free(new_arr);
}
Note that besides all other comments there is a small difference, which should be mentioned here for completeness!
With the empty catch clause you can catch non-CLSCompliant Exceptions when the assembly is marked with "RuntimeCompatibility(WrapNonExceptionThrows = false)" (which is true by default since CLR2). [1][2][3]
[1] http://msdn.microsoft.com/en-us/library/bb264489.aspx
[2] http://blogs.msdn.com/b/pedram/archive/2007/01/07/non-cls-exceptions.aspx
[3] Will CLR handle both CLS-Complaint and non-CLS complaint exceptions?
Using unique()
:
dat <- data.frame(id=c(1,1,3),id2=c(1,1,4),somevalue=c("x","y","z"))
dat[row.names(unique(dat[,c("id", "id2")])),]
You could do it like:
Person.where("name = ? OR age = ?", 'Pearl', 24)
or more elegant, install rails_or gem and do it like:
Person.where(:name => 'Pearl').or(:age => 24)
Just do it like this:
if(!document.getElementById("someId") { /Some code. Note the NOT (!) in the expresion/ };
If element with id "someId" does not exist expresion will return TRUE (NOT FALSE === TRUE) or !false === true;
try this code:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="format-detection" content="telephone-no">
<meta name="viewport" content="user-scalable=no, initial-scale=1, minimum-scale=1, maximum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi">
<title>Test</title>
</head>
<body>
<script>
var createPerson = function (name) {
var person;
if (!document.getElementById(name)) {
alert("Element does not exist. Let's create it.");
person = document.createElement("div");
//add argument name as the ID of the element
person.id = name;
//append element to the body of the document
document.body.appendChild(person);
} else {
alert("Element exists. Lets get it by ID!");
person = document.getElementById(name);
}
person.innerHTML = "HI THERE!";
};
//run the function.
createPerson("someid");
</script>
</body>
</html>
Try this in your browser and it should alert "Element does not exist. Let's create it."
Now add
<div id="someid"></div>
to the body of the page and try again. Voila! :)
If it happens that you need the Current Active Form from your MDI application: (MDI- Multi Document Interface).
Form activForm;
activForm = Form.ActiveForm.ActiveMdiChild;
Did it for Monday but similar logic for Sunday.
public static DateTime GetStartOfWeekDate()
{
// Get today's date
DateTime today = DateTime.Today;
// Get the value for today. DayOfWeek is an enum with 0 being Sunday, 1 Monday, etc
var todayDayOfWeek = (int)today.DayOfWeek;
var dateStartOfWeek = today;
// If today is not Monday, then get the date for Monday
if (todayDayOfWeek != 1)
{
// How many days to get back to Monday from today
var daysToStartOfWeek = (todayDayOfWeek - 1);
// Subtract from today's date the number of days to get to Monday
dateStartOfWeek = today.AddDays(-daysToStartOfWeek);
}
return dateStartOfWeek;
}
For Windows use this:
/* cmd into "node_modules" folder */
"%CD%\.bin\grunt" --version
Here is how you would do it with Apache HttpClient (this solution is for those who don't mind using a 3rd party library):
HttpEntity entity = MultipartEntityBuilder.create()
.addPart("file", new FileBody(file))
.build();
HttpPost request = new HttpPost(url);
request.setEntity(entity);
HttpClient client = HttpClientBuilder.create().build();
HttpResponse response = client.execute(request);
Couldn't you just pass the a name attribute and wrap it in a form?
<form id="form" action="do_stuff.php" method="post">
<select id="select_catalog" name="select_catalog_query">
<?php <<<INSERT THE SELECT OPTION LOOP>>> ?>
</select>
</form>
And then look for $_POST['select_catalog_query']
?
print('''first line \
second line''')
it will produce
first line second line
import pickle
intArray = [i for i in range(1,100)]
output = open('data.pkl', 'wb')
pickle.dump(intArray, output)
output.close()
Test your pickle quickly. pickle is a part of standard python library and available by default.
The characters '<', and '>', are to indicate a place-holder, you should remove them to read:
php /usr/local/solusvm/scripts/pass.php --type=admin --comm=change --username=ADMINUSERNAME
You can do something like:
get-content input_file1 > output_file
get-content input_file2 >> output_file
Where >
is an alias for "out-file", and >> is an alias for "out-file -append".
to Make it Like your App Bar Color
import 'package:flutter/material.dart';
Widget build(BuildContext context) {
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
statusBarColor: Colors.transparent,
systemNavigationBarColor: Colors.transparent,
));
}
What comes after the "Where" is a constraint on the generic type T you declared, so:
class means that the T should be a class and not a value type or a struct.
new() indicates that the T class should have a public parameter-free default constructor defined.
If you want a new line character to be inserted into a plain text stream then you could use the OS independent global PHP_EOL
echo "foo";
echo PHP_EOL ;
echo "bar";
In HTML terms you would see a newline between foo and bar if you looked at the source code of the page.
ergo, it is useful if you are outputting say, a loop of values for a select box and you value having html source code which is "prettier" or easier to read for yourself later. e.g.
foreach( $dogs as $dog )
echo "<option>$dog</option>" . PHP_EOL ;
Even i had same problem,this solution helped me so it might help you
check build version is matching with compile sdk version and add below code inside android block of build.gradle
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
In case someone is using ASP.NET Core for model binding,
https://docs.microsoft.com/en-us/aspnet/core/mvc/models/model-binding
There's is built in support for retrieving values from the header using the [FromHeader] attribute
public string Test([FromHeader]string Host, [FromHeader]string Content-Type )
{
return $"Host: {Host} Content-Type: {Content-Type}";
}
yesButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
eiteText=(EditText)findViewById(R.id.nameET);
String result=eiteText.getText().toString();
Log.d("TAG",result);
}
});
I am not sure about gson but this is how you do it with Jon.sample hope there must be similar way using gson
{ "Players": [ "player 1", "player 2", "player 3", "player 4", "player 5" ] }
===============================================
import java.io.FileReader;
import java.util.List;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
public class JosnFileDemo {
public static void main(String[] args) throws Exception
{
String jsonfile ="fileloaction/fileName.json";
FileReader reader = null;
JSONObject jsb = null;
try {
reader = new FileReader(jsonfile);
JSONParser jsonParser = new JSONParser();
jsb = (JSONObject) jsonParser.parse(reader);
} catch (Exception e) {
throw new Exception(e);
} finally {
if (reader != null)
reader.close();
}
List<String> Players=(List<String>) jsb.get("Players");
for (String player : Players) {
System.out.println(player);
}
}
}
jQuery:
$.trim( $("#mycomment").val() );
Someone uses $("#mycomment").val().trim();
but this will not work on IE.
String send =
"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
"<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\">\n" +
" <soap:Body>\n" +
" </soap:Body>\n" +
"</soap:Envelope>";
private static String getResponse(String send) throws Exception {
String url = "https://api.comscore.com/KeyMeasures.asmx"; //endpoint
String result = "";
String username="user_name";
String password="pass_word";
String[] command = {"curl", "-u", username+":"+password ,"-X", "POST", "-H", "Content-Type: text/xml", "-d", send, url};
ProcessBuilder process = new ProcessBuilder(command);
Process p;
try {
p = process.start();
BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
StringBuilder builder = new StringBuilder();
String line = null;
while ( (line = reader.readLine()) != null) {
builder.append(line);
builder.append(System.getProperty("line.separator"));
}
result = builder.toString();
}
catch (IOException e)
{ System.out.print("error");
e.printStackTrace();
}
return result;
}
Search "maven-jar-plugin" in pom.xml and add version tag maven version
Do not forget to verify if your text editor encodes properly your code in UTF-8.
Otherwise, you may have invisible characters that are not interpreted as UTF-8.
You can try the Flask Debug Toolbar.
https://pypi.python.org/pypi/Flask-DebugToolbar
from flask import Flask
from flask_debugtoolbar import DebugToolbarExtension
app = Flask(__name__)
# the toolbar is only enabled in debug mode:
app.debug = True
# set a 'SECRET_KEY' to enable the Flask session cookies
app.config['SECRET_KEY'] = '<replace with a secret key>'
toolbar = DebugToolbarExtension(app)
After reading several of these answers, I used a combination of several in Aug of 2018 to retrieve the query string params through lambda for python 3.6.
First, I went to API Gateway -> My API -> resources (on the left) -> Integration Request. Down at the bottom, select Mapping Templates then for content type enter application/json
.
Next, select the Method Request Passthrough template that Amazon provides and select save and deploy your API.
Then in, lambda event['params']
is how you access all of your parameters. For query string: event['params']['querystring']