Note that the type(numpy.ndarray)
is a type
itself and watch out for boolean and scalar types. Don't be too discouraged if it's not intuitive or easy, it's a pain at first.
See also: - https://docs.scipy.org/doc/numpy-1.15.1/reference/arrays.dtypes.html - https://github.com/machinalis/mypy-data/tree/master/numpy-mypy
>>> import numpy as np
>>> np.ndarray
<class 'numpy.ndarray'>
>>> type(np.ndarray)
<class 'type'>
>>> a = np.linspace(1,25)
>>> type(a)
<class 'numpy.ndarray'>
>>> type(a) == type(np.ndarray)
False
>>> type(a) == np.ndarray
True
>>> isinstance(a, np.ndarray)
True
Fun with booleans:
>>> b = a.astype('int32') == 11
>>> b[0]
False
>>> isinstance(b[0], bool)
False
>>> isinstance(b[0], np.bool)
False
>>> isinstance(b[0], np.bool_)
True
>>> isinstance(b[0], np.bool8)
True
>>> b[0].dtype == np.bool
True
>>> b[0].dtype == bool # python equivalent
True
More fun with scalar types, see: - https://docs.scipy.org/doc/numpy-1.15.1/reference/arrays.scalars.html#arrays-scalars-built-in
>>> x = np.array([1,], dtype=np.uint64)
>>> x[0].dtype
dtype('uint64')
>>> isinstance(x[0], np.uint64)
True
>>> isinstance(x[0], np.integer)
True # generic integer
>>> isinstance(x[0], int)
False # but not a python int in this case
# Try matching the `kind` strings, e.g.
>>> np.dtype('bool').kind
'b'
>>> np.dtype('int64').kind
'i'
>>> np.dtype('float').kind
'f'
>>> np.dtype('half').kind
'f'
# But be weary of matching dtypes
>>> np.integer
<class 'numpy.integer'>
>>> np.dtype(np.integer)
dtype('int64')
>>> x[0].dtype == np.dtype(np.integer)
False
# Down these paths there be dragons:
# the .dtype attribute returns a kind of dtype, not a specific dtype
>>> isinstance(x[0].dtype, np.dtype)
True
>>> isinstance(x[0].dtype, np.uint64)
False
>>> isinstance(x[0].dtype, np.dtype(np.uint64))
Traceback (most recent call last):
File "<console>", line 1, in <module>
TypeError: isinstance() arg 2 must be a type or tuple of types
# yea, don't go there
>>> isinstance(x[0].dtype, np.int_)
False # again, confusing the .dtype with a specific dtype
# Inequalities can be tricky, although they might
# work sometimes, try to avoid these idioms:
>>> x[0].dtype <= np.dtype(np.uint64)
True
>>> x[0].dtype <= np.dtype(np.float)
True
>>> x[0].dtype <= np.dtype(np.half)
False # just when things were going well
>>> x[0].dtype <= np.dtype(np.float16)
False # oh boy
>>> x[0].dtype == np.int
False # ya, no luck here either
>>> x[0].dtype == np.int_
False # or here
>>> x[0].dtype == np.uint64
True # have to end on a good note!
I try to understand the famous sentence in my way: "Python dose not care an object is a real duck or not. All it cares is whether the object, first 'quack', second 'like a duck'."
There is a good website. http://www.voidspace.org.uk/python/articles/duck_typing.shtml#id14
The author pointed that duck typing let you create your own classes that have their own internal data structure - but are accessed using normal Python syntax.
You can access the namespace's dictionary with vars():
>>> import argparse
>>> args = argparse.Namespace()
>>> args.foo = 1
>>> args.bar = [1,2,3]
>>> d = vars(args)
>>> d
{'foo': 1, 'bar': [1, 2, 3]}
You can modify the dictionary directly if you wish:
>>> d['baz'] = 'store me'
>>> args.baz
'store me'
Yes, it is okay to access the __dict__ attribute. It is a well-defined, tested, and guaranteed behavior.
If you are using MySQL
public static boolean isDbConnected() {
final String CHECK_SQL_QUERY = "SELECT 1";
boolean isConnected = false;
try {
final PreparedStatement statement = db.prepareStatement(CHECK_SQL_QUERY);
isConnected = true;
} catch (SQLException | NullPointerException e) {
// handle SQL error here!
}
return isConnected;
}
I have not tested with other databases. Hope this is helpful.
I hate to admit how little I've done an iPhone app for, but I can tell you I won't be doing that again. The guy who said that "simple, one function apps can be done .. [by solo developers]... for $5K" is correct; however, that is still lowball, and presumes almost no project design, graphic design or network backend work.
I found a better solutions in following link. Only use "object-fit" https://medium.com/@chrisnager/center-and-crop-images-with-a-single-line-of-css-ad140d5b4a87
When you draw to a canvas
element, you are simply drawing a bitmap in immediate mode.
The elements (shapes, lines, images) that are drawn have no representation besides the pixels they use and their colour.
Therefore, to get a click event on a canvas
element (shape), you need to capture click events on the canvas
HTML element and use some math to determine which element was clicked, provided you are storing the elements' width/height and x/y offset.
To add a click
event to your canvas
element, use...
canvas.addEventListener('click', function() { }, false);
To determine which element was clicked...
var elem = document.getElementById('myCanvas'),
elemLeft = elem.offsetLeft + elem.clientLeft,
elemTop = elem.offsetTop + elem.clientTop,
context = elem.getContext('2d'),
elements = [];
// Add event listener for `click` events.
elem.addEventListener('click', function(event) {
var x = event.pageX - elemLeft,
y = event.pageY - elemTop;
// Collision detection between clicked offset and element.
elements.forEach(function(element) {
if (y > element.top && y < element.top + element.height
&& x > element.left && x < element.left + element.width) {
alert('clicked an element');
}
});
}, false);
// Add element.
elements.push({
colour: '#05EFFF',
width: 150,
height: 100,
top: 20,
left: 15
});
// Render elements.
elements.forEach(function(element) {
context.fillStyle = element.colour;
context.fillRect(element.left, element.top, element.width, element.height);
});?
This code attaches a click
event to the canvas
element, and then pushes one shape (called an element
in my code) to an elements
array. You could add as many as you wish here.
The purpose of creating an array of objects is so we can query their properties later. After all the elements have been pushed onto the array, we loop through and render each one based on their properties.
When the click
event is triggered, the code loops through the elements and determines if the click was over any of the elements in the elements
array. If so, it fires an alert()
, which could easily be modified to do something such as remove the array item, in which case you'd need a separate render function to update the canvas
.
For completeness, why your attempts didn't work...
elem.onClick = alert("hello world"); // displays alert without clicking
This is assigning the return value of alert()
to the onClick
property of elem
. It is immediately invoking the alert()
.
elem.onClick = alert('hello world'); // displays alert without clicking
In JavaScript, the '
and "
are semantically identical, the lexer probably uses ['"]
for quotes.
elem.onClick = "alert('hello world!')"; // does nothing, even with clicking
You are assigning a string to the onClick
property of elem
.
elem.onClick = function() { alert('hello world!'); }; // does nothing
JavaScript is case sensitive. The onclick
property is the archaic method of attaching event handlers. It only allows one event to be attached with the property and the event can be lost when serialising the HTML.
elem.onClick = function() { alert("hello world!"); }; // does nothing
Again, ' === "
.
Try this : Using this you can select date by last 30 days,
SELECT DATEADD(DAY,-30,GETDATE())
Here's a javascript implementation that works with web-kit:
var isHovering = false;
var el = $(".elem").mouseover(function(){
isHovering = true;
spin();
}).mouseout(function(){
isHovering = false;
});
var spin = function(){
if(isHovering){
el.removeClass("spin");
setTimeout(function(){
el.addClass("spin");
setTimeout(spin, 1500);
}, 0);
}
};
spin();
JSFiddle: http://jsfiddle.net/4Vz63/161/
Barf.
In HTML in <input>
field write: (keypress)="onlyNumberKey($event)"
and in ts file write:
onlyNumberKey(event) {
return (event.charCode == 8 || event.charCode == 0) ? null : event.charCode >= 48 && event.charCode <= 57;
}
The exception you get is telling you filedialog
is not in your namespace.
filedialog
(and btw messagebox
) is a tkinter module, so it is not imported just with from tkinter import *
>>> from tkinter import *
>>> filedialog
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
NameError: name 'filedialog' is not defined
>>>
you should use for example:
>>> from tkinter import filedialog
>>> filedialog
<module 'tkinter.filedialog' from 'C:\Python32\lib\tkinter\filedialog.py'>
>>>
or
>>> import tkinter.filedialog as fdialog
or
>>> from tkinter.filedialog import askopenfilename
So this would do for your browse button:
from tkinter import *
from tkinter.filedialog import askopenfilename
from tkinter.messagebox import showerror
class MyFrame(Frame):
def __init__(self):
Frame.__init__(self)
self.master.title("Example")
self.master.rowconfigure(5, weight=1)
self.master.columnconfigure(5, weight=1)
self.grid(sticky=W+E+N+S)
self.button = Button(self, text="Browse", command=self.load_file, width=10)
self.button.grid(row=1, column=0, sticky=W)
def load_file(self):
fname = askopenfilename(filetypes=(("Template files", "*.tplate"),
("HTML files", "*.html;*.htm"),
("All files", "*.*") ))
if fname:
try:
print("""here it comes: self.settings["template"].set(fname)""")
except: # <- naked except is a bad idea
showerror("Open Source File", "Failed to read file\n'%s'" % fname)
return
if __name__ == "__main__":
MyFrame().mainloop()
Arve Waltin's solution looks good, although I haven't tested it yet. There is another solution in case you have trouble getting that to work.... Extend AlertDialog.Builder
and override all the methods (eg. setText
, setTitle
, setView
, etc) to not set the actual Dialog's text/title/view, but to create a new view within the Dialog's View do everything in there. Then you are free to style everything as you please.
To clarify, as far as the parent class is concerned, the View is set, and nothing else.
As far as your custom extended class is concerned, everything is done within that view.
SELECT from_unixtime( UNIX_TIMESTAMP(fild_with_timestamp) ) from "your_table"
This work for me
I think you mean that you want want an onclick event that changes a class.
Here is the answer if someone visits this question and is literally looking to assign a class and it's onclick with JQUERY.
It is somewhat counter-intuitive, but if you want to change the onclick event by changing the class you need to declare the onclick event to apply to elements of a parent object.
HTML
<div id="containerid">
Text <a class="myClass" href="#" />info</a>
Other Text <div class="myClass">other info</div>
</div>
<div id="showhide" class="meta-info">hide info</div>
Document Ready
$(function() {
$("#containerid").on("click",".myclass",function(e){ /*do stuff*/ }
$("#containerid").on("click",".mynewclass",function(e){ /*do different stuff*/ }
$("#showhide").click(function() {changeclass()}
});
Slight Tweak to Your Javascript
<script>
function changeclass() {
$(".myClass,.myNewClass").toggleClass('myNewClass').toggleClass('myClass');
}
</script>
If you can't reliably identify a parent object you can do something like this.
$(function() {
$(document).on("click",".myclass",function(e){}
$(document).on("click",".mynewclass",function(e){}
});
If you just want to hide the items you might find it simpler to use .hide() and .show().
You are returning char, and not char*, which is the pointer to the first character of an array.
If you want to return a new character array instead of doing in-place modification, you can ask for an already allocated pointer (char*) as parameter or an uninitialized pointer. In this last case you must allocate the proper number of characters for new string and remember that in C parameters as passed by value ALWAYS, so you must use char** as parameter in the case of array allocated internally by function. Of course, the caller must free that pointer later.
In addition to what mentioned before, you can use [attr.selected]
directive to select a specific option, as follows:
<select>
<option *ngFor="let program of programs" [attr.selected]="(member.programID == program.id)">
{{ program.name }}
</option>
</select>
The easiest way is to use LINQ's Union
method:
var aUb = A.Union(B).ToList();
If you connect to the server with MySQL Workbench add look at 'Management' and 'Options File' in the menu on the left, then the location of the config file being used by that server is shown at the bottom of the pane on the right.
I wanted to achieve the same goal as you, so I wrote the following method which does exactly that if you pass it an ImageView and a list of references to image drawables.
ImageView demoImage = (ImageView) findViewById(R.id.DemoImage);
int imagesToShow[] = { R.drawable.image1, R.drawable.image2,R.drawable.image3 };
animate(demoImage, imagesToShow, 0,false);
private void animate(final ImageView imageView, final int images[], final int imageIndex, final boolean forever) {
//imageView <-- The View which displays the images
//images[] <-- Holds R references to the images to display
//imageIndex <-- index of the first image to show in images[]
//forever <-- If equals true then after the last image it starts all over again with the first image resulting in an infinite loop. You have been warned.
int fadeInDuration = 500; // Configure time values here
int timeBetween = 3000;
int fadeOutDuration = 1000;
imageView.setVisibility(View.INVISIBLE); //Visible or invisible by default - this will apply when the animation ends
imageView.setImageResource(images[imageIndex]);
Animation fadeIn = new AlphaAnimation(0, 1);
fadeIn.setInterpolator(new DecelerateInterpolator()); // add this
fadeIn.setDuration(fadeInDuration);
Animation fadeOut = new AlphaAnimation(1, 0);
fadeOut.setInterpolator(new AccelerateInterpolator()); // and this
fadeOut.setStartOffset(fadeInDuration + timeBetween);
fadeOut.setDuration(fadeOutDuration);
AnimationSet animation = new AnimationSet(false); // change to false
animation.addAnimation(fadeIn);
animation.addAnimation(fadeOut);
animation.setRepeatCount(1);
imageView.setAnimation(animation);
animation.setAnimationListener(new AnimationListener() {
public void onAnimationEnd(Animation animation) {
if (images.length - 1 > imageIndex) {
animate(imageView, images, imageIndex + 1,forever); //Calls itself until it gets to the end of the array
}
else {
if (forever){
animate(imageView, images, 0,forever); //Calls itself to start the animation all over again in a loop if forever = true
}
}
}
public void onAnimationRepeat(Animation animation) {
// TODO Auto-generated method stub
}
public void onAnimationStart(Animation animation) {
// TODO Auto-generated method stub
}
});
}
A more generic solution for might be the following.
extendDf <- function (df, n) {
withFactors <- sum(sapply (df, function(X) (is.factor(X)) )) > 0
nr <- nrow (df)
colNames <- names(df)
for (c in 1:length(colNames)) {
if (is.factor(df[,c])) {
col <- vector (mode='character', length = nr+n)
col[1:nr] <- as.character(df[,c])
col[(nr+1):(n+nr)]<- rep(col[1], n) # to avoid extra levels
col <- as.factor(col)
} else {
col <- vector (mode=mode(df[1,c]), length = nr+n)
class(col) <- class (df[1,c])
col[1:nr] <- df[,c]
}
if (c==1) {
newDf <- data.frame (col ,stringsAsFactors=withFactors)
} else {
newDf[,c] <- col
}
}
names(newDf) <- colNames
newDf
}
The function extendDf() extends a data frame with n rows.
As an example:
aDf <- data.frame (l=TRUE, i=1L, n=1, c='a', t=Sys.time(), stringsAsFactors = TRUE)
extendDf (aDf, 2)
# l i n c t
# 1 TRUE 1 1 a 2016-07-06 17:12:30
# 2 FALSE 0 0 a 1970-01-01 01:00:00
# 3 FALSE 0 0 a 1970-01-01 01:00:00
system.time (eDf <- extendDf (aDf, 100000))
# user system elapsed
# 0.009 0.002 0.010
system.time (eDf <- extendDf (eDf, 100000))
# user system elapsed
# 0.068 0.002 0.070
In JDK1.8 you can use aggregate operations and a lambda expression:
String[] strArray = new String[] {"John", "Mary", "Bob"};
// #1
Arrays.asList(strArray).stream().forEach(s -> System.out.println(s));
// #2
Stream.of(strArray).forEach(System.out::println);
// #3
Arrays.stream(strArray).forEach(System.out::println);
/* output:
John
Mary
Bob
*/
Full join in mysql :(left union right) or (right unoin left)
SELECT Persons.LastName, Persons.FirstName, Orders.OrderNo
FROM Persons
left JOIN Orders
ON Persons.P_Id=Orders.P_Id
ORDER BY Persons.LastName
Union
SELECT Persons.LastName, Persons.FirstName, Orders.OrderNo
FROM Persons
Right JOIN Orders
ON Persons.P_Id=Orders.P_Id
ORDER BY Persons.LastName
Here is a pure css solution using viewport units and variables that automatically scales to the device (and works on window resize). I added the following to Alex's solution:
html,body {
width: 100%;
height: 100%;
position: fixed;/* prevents scrolling */
--innerheight: 100vh;/* variable 100% of viewport height */
}
body {
overflow: hidden; /* prevents scrolling */
}
.panel {
width: 100%;
height: var(--innerheight); /* viewport height */
a[ id= "galeria" ]:target ~ #main article.panel {
-webkit-transform: translateY( calc(-1*var(--innerheight)) );
transform: translateY( calc(-1*var(--innerheight)) );
}
a[ id= "contacto" ]:target ~ #main article.panel {
-webkit-transform: translateY( calc(-2*var(--innerheight)) );
transform: translateY( calc(-2*var(--innerheight)) );
If getData
is protected then try making it public. The problem could exist in JAVA 1.6 and be absent in 1.5x
I got this for your problem. Illegal access error
You could format the dates before you add them to your array. That is how I did. I used AngularJS
//convert the date to a standard format
var dt = new Date(date);
//take only the date and month and push them to your label array
$rootScope.charts.mainChart.labels.push(dt.getDate() + "-" + (dt.getMonth() + 1));
Use this array in your chart presentation
After adding JTextArea into JScrollPane here:
scroll = new JScrollPane(display);
You don't need to add it again into other container like you do:
middlePanel.add(display);
Just remove that last line of code and it will work fine. Like this:
middlePanel=new JPanel();
middlePanel.setBorder(new TitledBorder(new EtchedBorder(), "Display Area"));
// create the middle panel components
display = new JTextArea(16, 58);
display.setEditable(false); // set textArea non-editable
scroll = new JScrollPane(display);
scroll.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
//Add Textarea in to middle panel
middlePanel.add(scroll);
JScrollPane is just another container that places scrollbars around your component when its needed and also has its own layout. All you need to do when you want to wrap anything into a scroll just pass it into JScrollPane constructor:
new JScrollPane( myComponent )
or set view like this:
JScrollPane pane = new JScrollPane ();
pane.getViewport ().setView ( myComponent );
Additional:
Here is fully working example since you still did not get it working:
public static void main ( String[] args )
{
JPanel middlePanel = new JPanel ();
middlePanel.setBorder ( new TitledBorder ( new EtchedBorder (), "Display Area" ) );
// create the middle panel components
JTextArea display = new JTextArea ( 16, 58 );
display.setEditable ( false ); // set textArea non-editable
JScrollPane scroll = new JScrollPane ( display );
scroll.setVerticalScrollBarPolicy ( ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS );
//Add Textarea in to middle panel
middlePanel.add ( scroll );
// My code
JFrame frame = new JFrame ();
frame.add ( middlePanel );
frame.pack ();
frame.setLocationRelativeTo ( null );
frame.setVisible ( true );
}
And here is what you get:
If you want to do this without a bunch of server-side processing within the page, it might be a feasible idea to blow the text value into a hidden field (using PHP). Then you can use jQuery to process the hidden field value.
Whatever floats your boat :)
That only means that an undefined column or parameter name was detected. The errror that DB2 gives should point what that may be:
DB2 SQL Error: SQLCODE=-206, SQLSTATE=42703, SQLERRMC=[THE_UNDEFINED_COLUMN_OR_PARAMETER_NAME], DRIVER=4.8.87
Double check your table definition. Maybe you just missed adding something.
I also tried google-ing this problem and saw this:
http://www.coderanch.com/t/515475/JDBC/databases/sql-insert-statement-giving-sqlcode
If you want to use @Column(...), then use small-case letters always even though your actual DB column is in camel-case.
Example: If your actual DB column name is TestName
then use:
@Column(name="testname") //all small-case
If you don't like that, then simply change the actual DB column name into: test_name
Storing files in your database will lead to a huge database size. You may not like that, for development, testing, backups, etc.
Instead, you'd use FileStream (SQL-Server) or BFILE (Oracle).
There is no default-implementation of BFILE/FileStream in Postgres, but you can add it: https://github.com/darold/external_file
And further information (in french) can be obtained here:
http://blog.dalibo.com/2015/01/26/Extension_BFILE_pour_PostgreSQL.html
To answer the acual question:
Apart from bytea
, for really large files, you can use LOBS:
// http://stackoverflow.com/questions/14509747/inserting-large-object-into-postgresql-returns-53200-out-of-memory-error
// https://github.com/npgsql/Npgsql/wiki/User-Manual
public int InsertLargeObject()
{
int noid;
byte[] BinaryData = new byte[123];
// Npgsql.NpgsqlCommand cmd ;
// long lng = cmd.LastInsertedOID;
using (Npgsql.NpgsqlConnection connection = new Npgsql.NpgsqlConnection(GetConnectionString()))
{
using (Npgsql.NpgsqlTransaction transaction = connection.BeginTransaction())
{
try
{
NpgsqlTypes.LargeObjectManager manager = new NpgsqlTypes.LargeObjectManager(connection);
noid = manager.Create(NpgsqlTypes.LargeObjectManager.READWRITE);
NpgsqlTypes.LargeObject lo = manager.Open(noid, NpgsqlTypes.LargeObjectManager.READWRITE);
// lo.Write(BinaryData);
int i = 0;
do
{
int length = 1000;
if (i + length > BinaryData.Length)
length = BinaryData.Length - i;
byte[] chunk = new byte[length];
System.Array.Copy(BinaryData, i, chunk, 0, length);
lo.Write(chunk, 0, length);
i += length;
} while (i < BinaryData.Length);
lo.Close();
transaction.Commit();
} // End Try
catch
{
transaction.Rollback();
throw;
} // End Catch
return noid;
} // End Using transaction
} // End using connection
} // End Function InsertLargeObject
public System.Drawing.Image GetLargeDrawing(int idOfOID)
{
System.Drawing.Image img;
using (Npgsql.NpgsqlConnection connection = new Npgsql.NpgsqlConnection(GetConnectionString()))
{
lock (connection)
{
if (connection.State != System.Data.ConnectionState.Open)
connection.Open();
using (Npgsql.NpgsqlTransaction trans = connection.BeginTransaction())
{
NpgsqlTypes.LargeObjectManager lbm = new NpgsqlTypes.LargeObjectManager(connection);
NpgsqlTypes.LargeObject lo = lbm.Open(takeOID(idOfOID), NpgsqlTypes.LargeObjectManager.READWRITE); //take picture oid from metod takeOID
byte[] buffer = new byte[32768];
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
{
int read;
while ((read = lo.Read(buffer, 0, buffer.Length)) > 0)
{
ms.Write(buffer, 0, read);
} // Whend
img = System.Drawing.Image.FromStream(ms);
} // End Using ms
lo.Close();
trans.Commit();
if (connection.State != System.Data.ConnectionState.Closed)
connection.Close();
} // End Using trans
} // End lock connection
} // End Using connection
return img;
} // End Function GetLargeDrawing
public void DeleteLargeObject(int noid)
{
using (Npgsql.NpgsqlConnection connection = new Npgsql.NpgsqlConnection(GetConnectionString()))
{
if (connection.State != System.Data.ConnectionState.Open)
connection.Open();
using (Npgsql.NpgsqlTransaction trans = connection.BeginTransaction())
{
NpgsqlTypes.LargeObjectManager lbm = new NpgsqlTypes.LargeObjectManager(connection);
lbm.Delete(noid);
trans.Commit();
if (connection.State != System.Data.ConnectionState.Closed)
connection.Close();
} // End Using trans
} // End Using connection
} // End Sub DeleteLargeObject
Open it in a hex editor and make sure that the first three bytes are a UTF8 BOM (EF BB BF
)
Laravel 5 uses .env
file to configure your app. .env
should not be committed on your repository, like github or bitbucket. On your local environment your .env
will look like the following:
# .env
APP_ENV=local
For your production server, you might have the following config:
# .env
APP_ENV=production
The clean
, install
and deploy
phases are valid lifecycle phases and invoking them will trigger all the phases preceding them, and the goals bound to these phases.
mvn clean install
This command invokes the clean
phase and then the install
phase sequentially:
clean
: removes files generated at build-time in a project's directory (target
by default)install
: installs the package into the local repository, for use as a dependency in other projects locally.mvn deploy
This command invokes the deploy
phase:
deploy
: copies the final package to the remote repository for sharing with other developers and projects.mvn release
This is not a valid phase nor a goal so this won't do anything. But if refers to the Maven Release Plugin that is used to automate release management. Releasing a project is done in two steps: prepare
and perform
. As documented:
Preparing a release goes through the following release phases:
- Check that there are no uncommitted changes in the sources
- Check that there are no SNAPSHOT dependencies
- Change the version in the POMs from x-SNAPSHOT to a new version (you will be prompted for the versions to use)
- Transform the SCM information in the POM to include the final destination of the tag
- Run the project tests against the modified POMs to confirm everything is in working order
- Commit the modified POMs
- Tag the code in the SCM with a version name (this will be prompted for)
- Bump the version in the POMs to a new value y-SNAPSHOT (these values will also be prompted for)
- Commit the modified POMs
And then:
Performing a release runs the following release phases:
- Checkout from an SCM URL with optional tag
- Run the predefined Maven goals to release the project (by default, deploy site-deploy)
you can use this too
.parent:hover * {
/* ... */
}
_x000D_
sub selectVar ()
dim x,y as integer
let srange = "A" & x & ":" & "m" & y
range(srange).select
end sub
I think this is the simplest way.
http://support.microsoft.com/kb/931673
There are Registry changes you can make to explicitly select where the crash dump file resides, otherwise %localappdata%\Microsoft\Windows\WER is the default location. I assume that %localappdata% is defined differently for a user or a service running under System. You will need to enable WER I believe.
A function void f() compiled by a C compiler and a function with the same name void f() compiled by a C++ compiler are not the same function. If you wrote that function in C, and then you tried to call it from C++, then the linker would look for the C++ function and not find the C function.
extern "C" tells the C++ compiler that you have a function which was compiled by the C compiler. Once you tell it that it was compiled by the C compiler, the C++ compiler will know how to call it correctly.
It also allows the C++ compiler to compile a C++ function in such a way that the C compiler can call it. That function would officially be a C function, but since it is compiled by the C++ compiler, it can use all the C++ features and has all the C++ keywords.
%1
... %n
and %*
holds the arguments, but it can be tricky to access them, because the content will be interpreted.
Therefore it is impossible to handle something like this with normal statements
myBatch.bat "&"^&
Each line fails, as cmd.exe try to execute one of the ampersands (the content of %1 is "&"&
)
set var=%1
set "var=%1"
set var=%~1
set "var=%~1"
But there exists a workaround with a temporary file
@echo off
SETLOCAL DisableDelayedExpansion
SETLOCAL
for %%a in (1) do (
set "prompt=$_"
echo on
for %%b in (1) do rem * #%1#
@echo off
) > param.txt
ENDLOCAL
for /F "delims=" %%L in (param.txt) do (
set "param1=%%L"
)
SETLOCAL EnableDelayedExpansion
set "param1=!param1:*#=!"
set "param1=!param1:~0,-2!"
echo %%1 is '!param1!'
The trick is to enable echo on
and expand the %1
after a rem
statement (works also with %2 .. %*).
But to be able to redirect the output of echo on
, you need the two FOR-LOOPS.
The extra characters * #
are used to be safe against contents like /?
(would show the help for REM).
Or a caret ^ at the line end could work as a multiline character.
The FOR /F should be work with delayed expansion off, else contents with "!" would be destroyed.
After removing the extra characters in param1
and you got it.
And to use param1
in a safe way, enable the delayed expansion.
Edit: One remark to %0
%0
contains the command used to call the batch, also preserving the case like in FoO.BaT
But after a call to a function %0
and also in %~0
contains the function name (or better the string that was used to call the function).
But with %~f0
you still can recall the filename.
@echo off
echo main %0, %~0, %~f0
call :myLabel+xyz
exit /b
:MYlabel
echo func %0, %~0, %~f0
exit /b
Output
main test.bat, test.bat, C:\temp\test.bat
func :myLabel+xyz, :myLabel+xyz, C:\temp\test.bat
a = ["item 1", "item 2", "item 3", "item 4"]
h = Hash[*a] # => { "item 1" => "item 2", "item 3" => "item 4" }
That's it. The *
is called the splat operator.
One caveat per @Mike Lewis (in the comments): "Be very careful with this. Ruby expands splats on the stack. If you do this with a large dataset, expect to blow out your stack."
So, for most general use cases this method is great, but use a different method if you want to do the conversion on lots of data. For example, @Lukasz Niemier (also in the comments) offers this method for large data sets:
h = Hash[a.each_slice(2).to_a]
a quick way to see your errors whilst testing:
$error= $st->errorInfo();
echo $error[2];
You are touching multiple issues here:
1) A stack trace should never be visibile to end users (for user experience and security purposes)
Yes, it should be accessible to diagnose problems of end-users, but end-user should not see them for two reasons:
2) Generating a stack trace is a relatively expensive process (though unlikely to be an issue in most 'exception'al circumstances)
Generating a stack trace happens when the exception is being created/thrown (that's why throwing an exception comes with a price), printing is not that expensive. In fact you can override Throwable#fillInStackTrace()
in your custom exception effectively making throwing an exception almost as cheap as a simple GOTO statement.
3) Many logging frameworks will print the stack trace for you (ours does not and no, we can't change it easily)
Very good point. The main issue here is: if the framework logs the exception for you, do nothing (but make sure it does!) If you want to log the exception yourself, use logging framework like Logback or Log4J, to not put them on the raw console because it is very hard to control it.
With logging framework you can easily redirect stack traces to file, console or even send them to a specified e-mail address. With hardcoded printStackTrace()
you have to live with the sysout
.
4) Printing the stack trace does not constitute error handling. It should be combined with other information logging and exception handling.
Again: log SQLException
correctly (with the full stack trace, using logging framework) and show nice: "Sorry, we are currently not able to process your request" message. Do you really think the user is interested in the reasons? Have you seen StackOverflow error screen? It's very humorous, but does not reveal any details. However it ensures the user that the problem will be investigated.
But he will call you immediately and you need to be able to diagnose the problem. So you need both: proper exception logging and user-friendly messages.
To wrap things up: always log exceptions (preferably using logging framework), but do not expose them to the end-user. Think carefully and about error-messages in your GUI, show stack traces only in development mode.
It's probably worth mentioning that for http/https some people proxy their browser traffic through Burp/ZAP or another intercepting "attack proxy". A thread that covers options for this on Android devices can be found here: https://android.stackexchange.com/questions/32366/which-browser-does-support-proxies
Just run on ports above 1024 , anything below is privileged, its the same deal with Linux, i use 5000 for example on wins without any UAC priv escalation.
Use CardView in android v7 support library. Though it's a bit heavy, it solves all problem, and easy enough. Not like the set drawable background method, it could clip subviews successfully.
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
card_view:cardBackgroundColor="@android:color/transparent"
card_view:cardCornerRadius="5dp"
card_view:cardElevation="0dp"
card_view:contentPadding="0dp">
<YOUR_LINEARLAYOUT_HERE>
</android.support.v7.widget.CardView>
My C drive stopped being shared with Docker after a recent Windows 10 update. I was getting the same problem saying it was blocked by the Windows firewall when attempting to reshare it.
Looking through the above solutions, I found something that worked for me that is simpler than anything else I saw on this page. In Control Panel\All Control Panel Items\Network and Sharing Center, on the vEthernet (DockerNAT) connection, I unchecked the property File and Printer Sharing for Microsoft Networks and saved the setting. Then I checked the property again to reenable it and saved it again.
At this point, I was able to reshare the C drive in Docker settings. I have no idea why this worked but it was not a firewall problem, which already have an entry for DockerSmbMount.
My issue resolved
OR
OR
I struggled with this for a while and only combining the answers in this thread worked for me (on Windows 10):
1. Open cmd or PowerShell and go to the folder with files
2. takeown /R /F .
3. icacls * /T /grant dan:F
Good luck!
My Answer is specifically for Redmi/Mi Phone users. I faced this issue multiple times.
Sometimes we uninstall the app but it is not completely uninstalled but app will not display on screen and also it will not be listed in Settings -> Apps.
After checking multiple answers, What worked for me is below command
Go to Android Studio and click on Terminal tab in bottom of Android Studio. Connect your device, once adb detects your device, Run this command and try again to Run your application. Hope it will help.
adb uninstall com.shyam.smsapp
com.shyam.smsapp replace with your application package name
This may be due to version incompatibility between your code and the version you have installed.
In my case I was using v8.12.0 for development (locally) and installed latest version v13.7.0 on the server.
So using nvm I switched the node version to v8.12.0 with the below command:
> nvm install 8.12.0 // to install the version I wanted
> nvm use 8.12.0 // use the installed version
NOTE: You need to install nvm on your system to use nvm.
You should try this solution before trying solutions like installing build-essentials or uninstalling the current node version because you could switch between versions easily than reverting all the installations/uninstallations that you've done.
ArrayList<Matrices> list = new ArrayList<Matrices>();
list.add( new Matrices(1,1,10) );
list.add( new Matrices(1,2,20) );
Thanks to Gruff Bunny and Louis' comments, I found the source of the issue.
As I use Backbone.js too, I loaded a special build of Lodash compatible with Backbone and Underscore that disables some features. In this example:
var clone = _.clone(data, true);
data[1].values.d = 'x';
_.isEqual(data, clone) === false
_.isEqual(data, clone) === true
I just replaced the Underscore build with the Normal build in my Backbone application and the application is still working. So I can now use the Lodash .clone with the expected behaviour.
Edit 2018: the Underscore build doesn't seem to exist anymore. If you are reading this in 2018, you could be interested by this documentation (Backbone and Lodash).
You may have to perform a diff and put document.getElementById('name')
code inside a condition, in case your component is something like this:
// using the new hooks API
function Comp(props) {
const { isLoading, data } = props;
useEffect(() => {
if (data) {
var name = document.getElementById('name').value;
}
}, [data]) // this diff is necessary
if (isLoading) return <div>isLoading</div>
return (
<div id='name'>Comp</div>
);
}
If diff is not performed then, you will get null
.
It's very simple,
listViewRequests.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
**AppCompatCheckedTextView checkBox = (AppCompatCheckedTextView) view;**
Log.i("CHECK",checkBox.isChecked()+""+checkBox.getText().toString());**
}
});
Edit file: sudo nano /etc/httpd/conf.d/phpMyAdmin.conf
and replace yours with following:
<Directory /usr/share/phpMyAdmin/>
AddDefaultCharset UTF-8
<IfModule mod_authz_core.c>
# Apache 2.4
</IfModule>
<IfModule !mod_authz_core.c>
# Apache 2.2
</IfModule>
</Directory>
Restart Apache: service httpd restart
(phpMyAdmin v4.0.10.8)
Yarn
I had the problem when running: yarn start
It was fixed with running first: yarn install
You have set the upstream of that branch
(see:
--set-upstream-to
all the time?"git branch -f --track my_local_branch origin/my_remote_branch # OR (if my_local_branch is currently checked out): $ git branch --set-upstream-to my_local_branch origin/my_remote_branch
(git branch -f --track
won't work if the branch is checked out: use the second command git branch --set-upstream-to
instead, or you would get "fatal: Cannot force update the current branch.
")
That means your branch is already configured with:
branch.my_local_branch.remote origin
branch.my_local_branch.merge my_remote_branch
Git already has all the necessary information.
In that case:
# if you weren't already on my_local_branch branch:
git checkout my_local_branch
# then:
git pull
is enough.
If you hadn't establish that upstream branch relationship when it came to push your 'my_local_branch
', then a simple git push -u origin my_local_branch:my_remote_branch
would have been enough to push and set the upstream branch.
After that, for the subsequent pulls/pushes, git pull
or git push
would, again, have been enough.
It's HTML character references for encoding a character by its decimal code point
Look at the ASCII table here and you'll see that 39 (hex 0x27, octal 47) is the code for apostrophe
Conditionally perform a command several times.
syntax-FOR-Files
FOR %%parameter IN (set) DO command
syntax-FOR-Files-Rooted at Path
FOR /R [[drive:]path] %%parameter IN (set) DO command
syntax-FOR-Folders
FOR /D %%parameter IN (folder_set) DO command
syntax-FOR-List of numbers
FOR /L %%parameter IN (start,step,end) DO command
syntax-FOR-File contents
FOR /F ["options"] %%parameter IN (filenameset) DO command
or
FOR /F ["options"] %%parameter IN ("Text string to process") DO command
syntax-FOR-Command Results
FOR /F ["options"] %%parameter IN ('command to process') DO command
It
%%G
equal to some part of that dataIf you are using the FOR command at the command line rather than in a batch program, use just one percent sign: %G
instead of %%G
.
FOR Parameters
The first parameter has to be defined using a single character, for example the letter G.
FOR %%G IN
...
In each iteration of a FOR loop, the IN ( ....)
clause is evaluated and %%G
set to a different value
If this clause results in a single value then %%G is set equal to that value and the command is performed.
If the clause results in a multiple values then extra parameters are implicitly defined to hold each. These are automatically assigned in alphabetical order %%H %%I %%J
...(implicit parameter definition)
If the parameter refers to a file, then enhanced variable reference can be used to extract the filename/path/date/size.
You can of course pick any letter of the alphabet other than %%G
. but it is a good choice because it does not conflict with any of the pathname format letters (a, d, f, n, p, s, t, x) and provides the longest run of non-conflicting letters for use as implicit parameters.
Hope this will help you
Cast(columnName as Numeric(10,2))
or
Cast(@s as decimal(10,2))
I am not getting why you want to cast to varchar?.If you cast to varchar again convert back to decimail for two
decimal points
The following works with ESLint in VSCode if you want to disable the rule for just one line.
To disable the next line:
// eslint-disable-next-line no-console
console.log('hello world');
To disable the current line:
console.log('hello world'); // eslint-disable-line no-console
DateTime dt = DateTime.Parse("01:00 pm"); //Time in string formate
TimeSpan time = new TimeSpan();
time = dt.TimeOfDay;
Console.WriteLine(time);
Result : 13:00:00
In my case, the static content was already being served:
app.use('/*', express.static(path.join(__dirname, '../pub/index.html')));
...and everything in the app seemed to rely on that in some way. (path
dep is require('path')
)
So, a) yes, it can be a file; and b) you can make a redirect!
app.get('/', function (req, res) { res.redirect('/index.html') });
Now anyone hitting /
gets /index.html
which is served statically from ../pub/index.html
.
Hope this helps someone else.
Yes: sc.getConf().getAll()
Which uses the method:
SparkConf.getAll()
as accessed by
SparkContext.sc.getConf()
Note the Underscore: that makes this tricky. I had to look at the spark source code to figure it out ;)
But it does work:
In [4]: sc.getConf().getAll()
Out[4]:
[(u'spark.master', u'local'),
(u'spark.rdd.compress', u'True'),
(u'spark.serializer.objectStreamReset', u'100'),
(u'spark.app.name', u'PySparkShell')]
You don't need an API key, all you have to do is plop the standard mailchimp generated form into your code ( customize the look as needed ) and in the forms "action" attribute change post?u=
to post-json?u=
and then at the end of the forms action append &c=?
to get around any cross domain issue. Also it's important to note that when you submit the form you must use GET rather than POST.
Your form tag will look something like this by default:
<form action="http://xxxxx.us#.list-manage1.com/subscribe/post?u=xxxxx&id=xxxx" method="post" ... >
change it to look something like this
<form action="http://xxxxx.us#.list-manage1.com/subscribe/post-json?u=xxxxx&id=xxxx&c=?" method="get" ... >
Mail Chimp will return a json object containing 2 values: 'result' - this will indicate if the request was successful or not ( I've only ever seen 2 values, "error" and "success" ) and 'msg' - a message describing the result.
I submit my forms with this bit of jQuery:
$(document).ready( function () {
// I only have one form on the page but you can be more specific if need be.
var $form = $('form');
if ( $form.length > 0 ) {
$('form input[type="submit"]').bind('click', function ( event ) {
if ( event ) event.preventDefault();
// validate_input() is a validation function I wrote, you'll have to substitute this with your own.
if ( validate_input($form) ) { register($form); }
});
}
});
function register($form) {
$.ajax({
type: $form.attr('method'),
url: $form.attr('action'),
data: $form.serialize(),
cache : false,
dataType : 'json',
contentType: "application/json; charset=utf-8",
error : function(err) { alert("Could not connect to the registration server. Please try again later."); },
success : function(data) {
if (data.result != "success") {
// Something went wrong, do something to notify the user. maybe alert(data.msg);
} else {
// It worked, carry on...
}
}
});
}
If your HTML is like below you could do something like this:
<div ng-controller="ParentCtrl">
<div ng-controller="ChildCtrl">
</div>
</div>
Then you can access the parent scope as follows
function ParentCtrl($scope) {
$scope.cities = ["NY", "Amsterdam", "Barcelona"];
}
function ChildCtrl($scope) {
$scope.parentcities = $scope.$parent.cities;
}
If you want to access a parent controller from your view you have to do something like this:
<div ng-controller="xyzController as vm">
{{$parent.property}}
</div>
See jsFiddle: http://jsfiddle.net/2r728/
Update
Actually since you defined cities
in the parent controller your child controller will inherit all scope variables. So theoritically you don't have to call $parent
. The above example can also be written as follows:
function ParentCtrl($scope) {
$scope.cities = ["NY","Amsterdam","Barcelona"];
}
function ChildCtrl($scope) {
$scope.parentCities = $scope.cities;
}
The AngularJS docs use this approach, here you can read more about the $scope
.
Another update
I think this is a better answer to the original poster.
HTML
<div ng-app ng-controller="ParentCtrl as pc">
<div ng-controller="ChildCtrl as cc">
<pre>{{cc.parentCities | json}}</pre>
<pre>{{pc.cities | json}}</pre>
</div>
</div>
JS
function ParentCtrl() {
var vm = this;
vm.cities = ["NY", "Amsterdam", "Barcelona"];
}
function ChildCtrl() {
var vm = this;
ParentCtrl.apply(vm, arguments); // Inherit parent control
vm.parentCities = vm.cities;
}
If you use the controller as
method you can also access the parent scope as follows
function ChildCtrl($scope) {
var vm = this;
vm.parentCities = $scope.pc.cities; // note pc is a reference to the "ParentCtrl as pc"
}
As you can see there are many different ways in accessing $scopes
.
function ParentCtrl() {_x000D_
var vm = this;_x000D_
vm.cities = ["NY", "Amsterdam", "Barcelona"];_x000D_
}_x000D_
_x000D_
function ChildCtrl($scope) {_x000D_
var vm = this;_x000D_
ParentCtrl.apply(vm, arguments);_x000D_
_x000D_
vm.parentCitiesByScope = $scope.pc.cities;_x000D_
vm.parentCities = vm.cities;_x000D_
}_x000D_
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.20/angular.min.js"></script>_x000D_
<div ng-app ng-controller="ParentCtrl as pc">_x000D_
<div ng-controller="ChildCtrl as cc">_x000D_
<pre>{{cc.parentCities | json}}</pre>_x000D_
<pre>{{cc.parentCitiesByScope | json }}</pre>_x000D_
<pre>{{pc.cities | json}}</pre>_x000D_
</div>_x000D_
</div>
_x000D_
There is a (somewhat) related question on StackOverflow:
Here the problem was that an array of shape (nx,ny,1) is still considered a 3D array, and must be squeeze
d or sliced into a 2D array.
More generally, the reason for the Exception
TypeError: Invalid dimensions for image data
is shown here: matplotlib.pyplot.imshow()
needs a 2D array, or a 3D array with the third dimension being of shape 3 or 4!
You can easily check this with (these checks are done by imshow
, this function is only meant to give a more specific message in case it's not a valid input):
from __future__ import print_function
import numpy as np
def valid_imshow_data(data):
data = np.asarray(data)
if data.ndim == 2:
return True
elif data.ndim == 3:
if 3 <= data.shape[2] <= 4:
return True
else:
print('The "data" has 3 dimensions but the last dimension '
'must have a length of 3 (RGB) or 4 (RGBA), not "{}".'
''.format(data.shape[2]))
return False
else:
print('To visualize an image the data must be 2 dimensional or '
'3 dimensional, not "{}".'
''.format(data.ndim))
return False
In your case:
>>> new_SN_map = np.array([1,2,3])
>>> valid_imshow_data(new_SN_map)
To visualize an image the data must be 2 dimensional or 3 dimensional, not "1".
False
The np.asarray
is what is done internally by matplotlib.pyplot.imshow
so it's generally best you do it too. If you have a numpy array it's obsolete but if not (for example a list
) it's necessary.
In your specific case you got a 1D array, so you need to add a dimension with np.expand_dims()
import matplotlib.pyplot as plt
a = np.array([1,2,3,4,5])
a = np.expand_dims(a, axis=0) # or axis=1
plt.imshow(a)
plt.show()
or just use something that accepts 1D arrays like plot
:
a = np.array([1,2,3,4,5])
plt.plot(a)
plt.show()
If you are using gvim, you could just hit Ctrl + Home to go the first line. Similarly, Ctrl + End goes to the last line.
If you give a default value to each primary constructor parameter:
data class Item(var id: String = "",
var title: String = "",
var condition: String = "",
var price: String = "",
var categoryId: String = "",
var make: String = "",
var model: String = "",
var year: String = "",
var bodyStyle: String = "",
var detail: String = "",
var latitude: Double = 0.0,
var longitude: Double = 0.0,
var listImages: List<String> = emptyList(),
var idSeller: String = "")
and from the class where the instances you can call it without arguments or with the arguments that you have that moment
var newItem = Item()
var newItem2 = Item(title = "exampleTitle",
condition = "exampleCondition",
price = "examplePrice",
categoryId = "exampleCategoryId")
You could use the following code to redirect your client to a script with the _GET variables attached.
header("Location: examplepage.php?var1=value&var2=value");
die();
This will cause the script to redirect, make sure the die();
is kept in there, or they may not redirect.
I'm new to python too. Here is something that looks like will do what you want to
axes([0.08, 0.08, 0.94-0.08, 0.94-0.08]) #[left, bottom, width, height]
axis('scaled')`
I believe this decides the size of the canvas.
I am Write this code in xml file ...
<Button
android:id="@+id/btn_register"
android:layout_margin="1dp"
android:layout_marginLeft="3dp"
android:layout_marginTop="10dp"
android:layout_weight="2"
android:onClick="register"
android:text="Register"
android:textColor="#000000"/>
And write this code in fragment...
public void register(View view) {
}
When we want to refresh the parent page from the child page without any prompt.
Here is the code:
window.opener.location.href = window.opener.location;
This simply refreshes the parent page without any prompt.
You can only send 1 object as a parameter in the body via post. I would change your Post method to
public void Post(ICollection<Product> products)
{
}
and in your angular code you would pass up a product array in JSON notation
Since I have recently developed an Android application using gyroscope data (steady compass), I tried to collect a list with such devices. This is not an exhaustive list at all, but it is what I have so far:
*** Phones:
*** Tablets:
Hope the list keeps growing and hope that gyros will be soon available on mid and low price smartphones.
In T-SQL stored procedures for input parameters explicit 'in' keyword is not required and for output parameters an explicit 'Output' keyword is required. The query in question can be written as:
CREATE PROCEDURE dept_count
(
-- Add input and output parameters for the stored procedure here
@dept_name varchar(20), --Input parameter
@d_count int OUTPUT -- Output parameter declared with the help of OUTPUT/OUT keyword
)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Statements for procedure here
SELECT @d_count = count(*)
from instructor
where instructor.dept_name=@dept_name
END
GO
and to execute above procedure we can write as:
Declare @dept_name varchar(20), -- Declaring the variable to collect the dept_name
@d_count int -- Declaring the variable to collect the d_count
SET @dept_name = 'Test'
Execute dept_count @dept_name,@d_count output
SELECT @d_count -- "Select" Statement is used to show the output
For some odd reason this part
$el.empty(); // remove old options
from CMS solution didn't work for me, so instead of that I've simply used this
el.html(' ');
And it's works. So my working code now looks like that:
var newOptions = {
"Option 1":"option-1",
"Option 2":"option-2"
};
var $el = $('.selectClass');
$el.html(' ');
$.each(newOptions, function(key, value) {
$el.append($("<option></option>")
.attr("value", value).text(key));
});
I find the above answers really lengthy, so to summarize:
The mysqli extension has a number of benefits, the key enhancements over the mysql extension being:
- Object-oriented interface
- Support for Prepared Statements
- Support for Multiple Statements
- Support for Transactions
- Enhanced debugging capabilities
- Embedded server support
Source: MySQLi overview
As explained in the above answers, the alternatives to mysql are mysqli and PDO (PHP Data Objects).
Both MySQLi and PDO were introduced in PHP 5.0, whereas MySQL was introduced prior to PHP 3.0. A point to note is that MySQL is included in PHP5.x though deprecated in later versions.
echo "GenFiltEff=7.092200e-01" | cut -d "=" -f2
Another option is to check for regular expression match on the command output.
For example:
[[ "$(./somecommand)" =~ "sub string" ]] && echo "Output includes 'sub string'"
You can use >>
to print in another file.
echo "hello" >> logfile.txt
It's actually much easier with jQuery's promise API:
$.ajax(
type: "GET",
url: requestURL,
).then((success) =>
console.dir(success)
).failure((failureResponse) =>
console.dir(failureResponse)
)
Alternatively, you can pass in of bind
functions to each result callback; the order of parameters is: (success, failure)
. So long as you specify a function with at least 1 parameter, you get access to the response. So, for example, if you wanted to check the response text, you could simply do:
$.ajax(
type: "GET",
url: @get("url") + "logout",
beforeSend: (xhr) -> xhr.setRequestHeader("token", currentToken)
).failure((response) -> console.log "Request was unauthorized" if response.status is 401
For most switch
and most if-then-else
blocks, I can't imagine that there are any appreciable or significant performance related concerns.
But here's the thing: if you're using a switch
block, its very use suggests that you're switching on a value taken from a set of constants known at compile time. In this case, you really shouldn't be using switch
statements at all if you can use an enum
with constant-specific methods.
Compared to a switch
statement, an enum provides better type safety and code that is easier to maintain. Enums can be designed so that if a constant is added to the set of constants, your code won't compile without providing a constant-specific method for the new value. On the other hand, forgetting to add a new case
to a switch
block can sometimes only be caught at run time if you're lucky enough to have set your block up to throw an exception.
Performance between switch
and an enum
constant-specific method should not be significantly different, but the latter is more readable, safer, and easier to maintain.
Guys it has very simple solution
https://developers.google.com/instance-id/guides/android-implementation#generate_a_token
Note: If your app used tokens that were deleted by deleteInstanceID, your app will need to generate replacement tokens.
In stead of deleting instance Id, delete only token:
String authorizedEntity = PROJECT_ID;
String scope = "GCM";
InstanceID.getInstance(context).deleteToken(authorizedEntity,scope);
Associative Arrays in JavaScript don't really work the same as they do in other languages. for each
statements are complicated (because they enumerate inherited prototype properties). You could declare properties on an object/associative array as Pointy mentioned, but really for this sort of thing you should use an array with the push
method:
jsArr = [];
for (var i = 1; i <= 10; i++) {
jsArr.push('example ' + 1);
}
Just don't forget that indexed arrays are zero-based so the first element will be jsArr[0], not jsArr[1].
open come to play when dealing with multiple modules.
open class is accessible and subclassable outside of the defining module. An open class member is accessible and overridable outside of the defining module.
RDDs extend the Serialisable interface, so this is not what's causing your task to fail. Now this doesn't mean that you can serialise an RDD
with Spark and avoid NotSerializableException
Spark is a distributed computing engine and its main abstraction is a resilient distributed dataset (RDD), which can be viewed as a distributed collection. Basically, RDD's elements are partitioned across the nodes of the cluster, but Spark abstracts this away from the user, letting the user interact with the RDD (collection) as if it were a local one.
Not to get into too many details, but when you run different transformations on a RDD (map
, flatMap
, filter
and others), your transformation code (closure) is:
You can of course run this locally (as in your example), but all those phases (apart from shipping over network) still occur. [This lets you catch any bugs even before deploying to production]
What happens in your second case is that you are calling a method, defined in class testing
from inside the map function. Spark sees that and since methods cannot be serialized on their own, Spark tries to serialize the whole testing
class, so that the code will still work when executed in another JVM. You have two possibilities:
Either you make class testing serializable, so the whole class can be serialized by Spark:
import org.apache.spark.{SparkContext,SparkConf}
object Spark {
val ctx = new SparkContext(new SparkConf().setAppName("test").setMaster("local[*]"))
}
object NOTworking extends App {
new Test().doIT
}
class Test extends java.io.Serializable {
val rddList = Spark.ctx.parallelize(List(1,2,3))
def doIT() = {
val after = rddList.map(someFunc)
after.collect().foreach(println)
}
def someFunc(a: Int) = a + 1
}
or you make someFunc
function instead of a method (functions are objects in Scala), so that Spark will be able to serialize it:
import org.apache.spark.{SparkContext,SparkConf}
object Spark {
val ctx = new SparkContext(new SparkConf().setAppName("test").setMaster("local[*]"))
}
object NOTworking extends App {
new Test().doIT
}
class Test {
val rddList = Spark.ctx.parallelize(List(1,2,3))
def doIT() = {
val after = rddList.map(someFunc)
after.collect().foreach(println)
}
val someFunc = (a: Int) => a + 1
}
Similar, but not the same problem with class serialization can be of interest to you and you can read on it in this Spark Summit 2013 presentation.
As a side note, you can rewrite rddList.map(someFunc(_))
to rddList.map(someFunc)
, they are exactly the same. Usually, the second is preferred as it's less verbose and cleaner to read.
EDIT (2015-03-15): SPARK-5307 introduced SerializationDebugger and Spark 1.3.0 is the first version to use it. It adds serialization path to a NotSerializableException. When a NotSerializableException is encountered, the debugger visits the object graph to find the path towards the object that cannot be serialized, and constructs information to help user to find the object.
In OP's case, this is what gets printed to stdout:
Serialization stack:
- object not serializable (class: testing, value: testing@2dfe2f00)
- field (class: testing$$anonfun$1, name: $outer, type: class testing)
- object (class testing$$anonfun$1, <function1>)
I prefer this solution, over the accepted answer by Michael Williamson, it catches changes to sources+inline files, then sources+headers, and finally sources only. Advantage here is that the whole library is not recompiled if only a a few changes are made. Not a huge consideration for a project with a couple of files, bur if you have 10 or a 100 sources, you will notice the difference.
COMMAND= gcc -Wall -Iinclude ...
%.o: %.cpp %.inl
$(COMMAND)
%.o: %.cpp %.hpp
$(COMMAND)
%.o: %.cpp
$(COMMAND)
Try mylist[0][0]
. This should return the first character.
I found this catered for dates in 21st Century that could be entered as dd/mm or dd/mm/yy. It is intended to print an attendance register and asks for the meeting date to start with.
Sub Print_Register()
Dim MeetingDate, Answer
Sheets("Register").Select
Range("A1").Select
GetDate:
MeetingDate = DateValue(InputBox("Enter the date of the meeting." & Chr(13) & _
"Note Format" & Chr(13) & "Format DD/MM/YY or DD/MM", "Meeting Date", , 10000, 10000))
If MeetingDate = "" Then GoTo TheEnd
If MeetingDate < 36526 Then MeetingDate = MeetingDate + 36526
Range("Current_Meeting_Date") = MeetingDate
Answer = MsgBox("Date OK?", 3)
If Answer = 2 Then GoTo TheEnd
If Answer = 7 Then GoTo GetDate
ExecuteExcel4Macro "PRINT(1,,,1,,,,,,,,2,,,TRUE,,FALSE)"
TheEnd:
End Sub
There are 2 different ways you can look for lowercase characters:
Use str.islower()
to find lowercase characters. Combined with a list comprehension, you can gather all lowercase letters:
lowercase = [c for c in s if c.islower()]
You could use a regular expression:
import re
lc = re.compile('[a-z]+')
lowercase = lc.findall(s)
The first method returns a list of individual characters, the second returns a list of character groups:
>>> import re
>>> lc = re.compile('[a-z]+')
>>> lc.findall('AbcDeif')
['bc', 'eif']
The code looks strange because the printf are not in any function blocks.
I was also looking for the same answer, and somehow couldn't understand the concept clearly. But finally I understood it from this link
this is a keyword in Java. Which can be used inside method or constructor of class. It(this) works as a reference to a current object whose method or constructor is being invoked. this keyword can be used to refer any member of current object from within an instance method or a constructor.
Check the examples in the link for a clear understanding
Go to Hbase home directory and run this command,
./bin/hbase org.apache.hadoop.hbase.mapreduce.RowCounter 'namespace:tablename'
This will launch a mapreduce job and the output will show the number of records existing in the hbase table.
Building on what deb2fast said I would also pass in a couple of extra parameters to JSON.stringify() to get it to pretty format:
fs.writeFileSync('./data.json', JSON.stringify(obj, null, 2) , 'utf-8');
The second param is an optional replacer function which you don't need in this case so null
works.
The third param is the number of spaces to use for indentation. 2 and 4 seem to be popular choices.
The answer about "short-circuiting" is potentially misleading, but has some truth (see below). In the R/S language, &&
and ||
only evaluate the first element in the first argument. All other elements in a vector or list are ignored regardless of the first ones value. Those operators are designed to work with the if (cond) {} else{}
construction and to direct program control rather than construct new vectors.. The &
and the |
operators are designed to work on vectors, so they will be applied "in parallel", so to speak, along the length of the longest argument. Both vectors need to be evaluated before the comparisons are made. If the vectors are not the same length, then recycling of the shorter argument is performed.
When the arguments to &&
or ||
are evaluated, there is "short-circuiting" in that if any of the values in succession from left to right are determinative, then evaluations cease and the final value is returned.
> if( print(1) ) {print(2)} else {print(3)}
[1] 1
[1] 2
> if(FALSE && print(1) ) {print(2)} else {print(3)} # `print(1)` not evaluated
[1] 3
> if(TRUE && print(1) ) {print(2)} else {print(3)}
[1] 1
[1] 2
> if(TRUE && !print(1) ) {print(2)} else {print(3)}
[1] 1
[1] 3
> if(FALSE && !print(1) ) {print(2)} else {print(3)}
[1] 3
The advantage of short-circuiting will only appear when the arguments take a long time to evaluate. That will typically occur when the arguments are functions that either process larger objects or have mathematical operations that are more complex.
In new version it is like this:
def validate(self, attrs):
has_unknown_fields = set(self.initial_data) - set(self.fields.keys())
if has_unknown_fields:
raise serializers.ValidationError("Do not send extra fields")
return attrs
OK, i just fixed this error.
This happens when there is an error in query or table doesn't exist.
Try debugging the query buy running it directly on phpmyadmin to confirm the validity of the mysql Query
The line
base64String = Base64.encode(byteArray);
converts the full array (102400 bytes) to Base64, not just the number of bytes you have read. You need to pass it the numbers of bytes.
Search on package manager before using pip
. On Arch linux you can get PIL by pacman -S python2-pillow
From the research that I've done, there doesn't appear to be any documentation available for the API you're using. Depending on the data you're trying to get, I'd recommend using Yahoo's YQL API for accessing Yahoo Finance (An example can be found here). Alternatively, you could try using this well documented way to get CSV data from Yahoo Finance.
EDIT:
There has been some discussion on the Yahoo developer forums and it looks like there is no documentation (emphasis mine):
The reason for the lack of documentation is that we don't have a Finance API. It appears some have reverse engineered an API that they use to pull Finance data, but they are breaking our Terms of Service (no redistribution of Finance data) in doing this so I would encourage you to avoid using these webservices.
At the same time, the URL you've listed can be accessed using the YQL console, though I'm not savvy enough to know how to extract URL parameters with it.
Yes, s
stands for string. The json.loads
function does not take the file path, but the file contents as a string. Look at the documentation at https://docs.python.org/2/library/json.html!
Exporting without default
means it's a "named export". You can have multiple named exports in a single file. So if you do this,
class Template {}
class AnotherTemplate {}
export { Template, AnotherTemplate }
then you have to import these exports using their exact names. So to use these components in another file you'd have to do,
import {Template, AnotherTemplate} from './components/templates'
Alternatively if you export as the default
export like this,
export default class Template {}
Then in another file you import the default export without using the {}
, like this,
import Template from './components/templates'
There can only be one default export per file. In React it's a convention to export one component from a file, and to export it is as the default export.
You're free to rename the default export as you import it,
import TheTemplate from './components/templates'
And you can import default and named exports at the same time,
import Template,{AnotherTemplate} from './components/templates'
Heres some code in c to convert rgb to grayscale. The real weighting used for rgb to grayscale conversion is 0.3R+0.6G+0.11B. these weights arent absolutely critical so you can play with them. I have made them 0.25R+ 0.5G+0.25B. It produces a slightly darker image.
NOTE: The following code assumes xRGB 32bit pixel format
unsigned int *pntrBWImage=(unsigned int*)..data pointer..; //assumes 4*width*height bytes with 32 bits i.e. 4 bytes per pixel
unsigned int fourBytes;
unsigned char r,g,b;
for (int index=0;index<width*height;index++)
{
fourBytes=pntrBWImage[index];//caches 4 bytes at a time
r=(fourBytes>>16);
g=(fourBytes>>8);
b=fourBytes;
I_Out[index] = (r >>2)+ (g>>1) + (b>>2); //This runs in 0.00065s on my pc and produces slightly darker results
//I_Out[index]=((unsigned int)(r+g+b))/3; //This runs in 0.0011s on my pc and produces a pure average
}
Haven't tried yet but found WebKit.NET on SourceForge. It was moved to GitHub.
Warning: Not maintained anymore, last commits are from early 2013
Note that the first applicationContext is loaded as part of web.xml
; which is mentioned with the below.
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>META-INF/spring/applicationContext.xml</param-value>
</context-param>
<servlet>
<servlet-name>myOwn-controller</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>META-INF/spring/applicationContext.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
Where as below code will also tries to create one more applicationContext.
private static final ApplicationContext context =
new ClassPathXmlApplicationContext("beans.xml");
See the difference between beans.xml
and applicationContext.xml
And if appliationContext.xml
under <META-INF/spring/>
has declared with <import resource="beans.xml"/>
then this appliationContext.xml
is loading the beans.xml
under the same location META-INF/spring
of appliationContext.xml
.
Where as; in the code; if it is declared like below
ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
This is looking the beans.xml at WEB-INF/classes
OR in eclipse src/main/resources
.
[If you have added beans.xml
at src/main/resources
then it might be placed at WEB-INF/classes
while creating the WAR.]
So totally TWO files are looked up.
I have resolved this issue by adding classpath lookup while importing at applicationContext.xml
like below
<import resource="classpath*:beans.xml" />
and removed the the line ClassPathXmlApplicationContext("beans.xml")
in java code, so that there will be only one ApplicationContext loaded.
You could have an array of strigs and access by index.
String months[] = {"January", "February", "March", "April",
"May", "June", "July", "August", "September",
"October", "November", "December"};
set ansi_nulls off go select * from table t inner join otherTable o on t.statusid = o.statusid go set ansi_nulls on go
user.no_of_logins += 1
session.commit()
stored value in DB is: 5XXXXXX [where x can be any digit]
You don't mention data types - if numeric, you'll likely have to use CAST/CONVERT to change the data type to [n]varchar.
Use:
WHERE CHARINDEX(column, '5') = 1
AND CHARINDEX(column, '.') = 0 --to stop decimals if needed
AND ISNUMERIC(column) = 1
References:
i have also different cases like XXXX7XX for example, so it has to be generic.
Use:
WHERE PATINDEX('%7%', column) = 5
AND CHARINDEX(column, '.') = 0 --to stop decimals if needed
AND ISNUMERIC(column) = 1
References:
SQL Server 2000+ supports regex, but the catch is you have to create the UDF function in CLR before you have the ability. There are numerous articles providing example code if you google them. Once you have that in place, you can use:
5\d{6}
for your first example\d{4}7\d{2}
for your second exampleFor more info on regular expressions, I highly recommend this website.
I think that each paradigm serves a different purpose and as such cannot be compared in this way.
I have not heard that the GoF design patterns are applicable to every language. I have heard that they are applicable to all OOP languages. If you use functional programming then the domain of problems that you solve is different from OO languages.
I wouldn't use functional language to write a user interface, but one of the OO languages like C# or Java would make this job easier. If I were writing a functional language then I wouldn't consider using OO design patterns.
I needed to do replicate these heights properly in a pre-ICS compatibility app and dug into the framework core source. Both answers above are sort of correct.
It basically boils down to using qualifiers. The height is defined by the dimension "action_bar_default_height"
It is defined to 48dip for default. But for -land it is 40dip and for sw600dp it is 56dip.
This will search for a string over every database:
declare @search_term varchar(max)
set @search_term = 'something'
select @search_term = 'use ? SET QUOTED_IDENTIFIER ON
select
''[''+db_name()+''].[''+c.name+''].[''+b.name+'']'' as [object],
b.type_desc as [type],
d.obj_def.value(''.'',''varchar(max)'') as [definition]
from (
select distinct
a.id
from sys.syscomments a
where a.[text] like ''%'+@search_term+'%''
) a
inner join sys.all_objects b
on b.[object_id] = a.id
inner join sys.schemas c
on c.[schema_id] = b.[schema_id]
cross apply (
select
[text()] = a1.[text]
from sys.syscomments a1
where a1.id = a.id
order by a1.colid
for xml path(''''), type
) d(obj_def)
where c.schema_id not in (3,4) -- avoid searching in sys and INFORMATION_SCHEMA schemas
and db_id() not in (1,2,3,4) -- avoid sys databases'
if object_id('tempdb..#textsearch') is not null drop table #textsearch
create table #textsearch
(
[object] varchar(300),
[type] varchar(300),
[definition] varchar(max)
)
insert #textsearch
exec sp_MSforeachdb @search_term
select *
from #textsearch
order by [object]
The main concept of partial view is returning the HTML code rather than going to the partial view it self.
[HttpGet]
public ActionResult Calendar(int year)
{
var dates = new List<DateTime>() { /* values based on year */ };
HolidayViewModel model = new HolidayViewModel {
Dates = dates
};
return PartialView("HolidayPartialView", model);
}
this action return the HTML code of the partial view ("HolidayPartialView").
To refresh partial view replace the existing item with the new filtered item using the jQuery below.
$.ajax({
url: "/Holiday/Calendar",
type: "GET",
data: { year: ((val * 1) + 1) }
})
.done(function(partialViewResult) {
$("#refTable").html(partialViewResult);
});
Try this extension method to add the desired behaviour to any TextBox control. I havn't tested it extensively yet, but it seems to fulfil my needs.
public static class TextBoxExtensions
{
public static void SetupSelectAllOnGotFocus(this TextBox source)
{
source.GotFocus += SelectAll;
source.PreviewMouseLeftButtonDown += SelectivelyIgnoreMouseButton;
}
private static void SelectAll(object sender, RoutedEventArgs e)
{
var textBox = e.OriginalSource as TextBox;
if (textBox != null)
textBox.SelectAll();
}
private static void SelectivelyIgnoreMouseButton(object sender, MouseButtonEventArgs e)
{
var textBox = (sender as TextBox);
if (textBox != null)
{
if (!textBox.IsKeyboardFocusWithin)
{
e.Handled = true;
textBox.Focus();
}
}
}
}
So to put it all together, checking for Nan, infinity and complex numbers (it would seem they are specified with j, not i, i.e. 1+2j) it results in:
def is_number(s):
try:
n=str(float(s))
if n == "nan" or n=="inf" or n=="-inf" : return False
except ValueError:
try:
complex(s) # for complex
except ValueError:
return False
return True
Have done a number of comparisons between left outer and inner joins and have not been able to find a consisten difference. There are many variables. Am working on a reporting database with thousands of tables many with a large number of fields, many changes over time (vendor versions and local workflow) . It is not possible to create all of the combinations of covering indexes to meet the needs of such a wide variety of queries and handle historical data. Have seen inner queries kill server performance because two large (millions to tens of millions of rows) tables are inner joined both pulling a large number of fields and no covering index exists.
The biggest issue though, doesn't seem to appeaer in the discussions above. Maybe your database is well designed with triggers and well designed transaction processing to ensure good data. Mine frequently has NULL values where they aren't expected. Yes the table definitions could enforce no-Nulls but that isn't an option in my environment.
So the question is... do you design your query only for speed, a higher priority for transaction processing that runs the same code thousands of times a minute. Or do you go for accuracy that a left outer join will provide. Remember that inner joins must find matches on both sides, so an unexpected NULL will not only remove data from the two tables but possibly entire rows of information. And it happens so nicely, no error messages.
You can be very fast as getting 90% of the needed data and not discover the inner joins have silently removed information. Sometimes inner joins can be faster, but I don't believe anyone making that assumption unless they have reviewed the execution plan. Speed is important, but accuracy is more important.
Cshtml files are the ones used by Razor and as stated as answer for this question, their main advantage is that they can be rendered inside unit tests. The various answers to this other topic will bring a lot of other interesting points.
The way to run all of logrotate is:
logrotate -f /etc/logrotate.conf
that will run the primary logrotate file, which includes the other logrotate configurations as well
I spent a while messing around with this problem, because no solution I found actually worked, strangely enough! The working directory is frequently not the directory of the JAR, especially if a JAR (or any program, for that matter) is run from the Start Menu under Windows. So here is what I did, and it works for .class files run from outside a JAR just as well as it works for a JAR. (I only tested it under Windows 7.)
try {
//Attempt to get the path of the actual JAR file, because the working directory is frequently not where the file is.
//Example: file:/D:/all/Java/TitanWaterworks/TitanWaterworks-en.jar!/TitanWaterworks.class
//Another example: /D:/all/Java/TitanWaterworks/TitanWaterworks.class
PROGRAM_DIRECTORY = getClass().getClassLoader().getResource("TitanWaterworks.class").getPath(); // Gets the path of the class or jar.
//Find the last ! and cut it off at that location. If this isn't being run from a jar, there is no !, so it'll cause an exception, which is fine.
try {
PROGRAM_DIRECTORY = PROGRAM_DIRECTORY.substring(0, PROGRAM_DIRECTORY.lastIndexOf('!'));
} catch (Exception e) { }
//Find the last / and cut it off at that location.
PROGRAM_DIRECTORY = PROGRAM_DIRECTORY.substring(0, PROGRAM_DIRECTORY.lastIndexOf('/') + 1);
//If it starts with /, cut it off.
if (PROGRAM_DIRECTORY.startsWith("/")) PROGRAM_DIRECTORY = PROGRAM_DIRECTORY.substring(1, PROGRAM_DIRECTORY.length());
//If it starts with file:/, cut that off, too.
if (PROGRAM_DIRECTORY.startsWith("file:/")) PROGRAM_DIRECTORY = PROGRAM_DIRECTORY.substring(6, PROGRAM_DIRECTORY.length());
} catch (Exception e) {
PROGRAM_DIRECTORY = ""; //Current working directory instead.
}
If you're short of "fancy tools", e.g. in some minimal Linux distribution, there is a solution with just cat
, sort
and uniq
:
cat includes.txt excludes.txt excludes.txt | sort | uniq --unique
Test:
seq 1 1 7 | sort --random-sort > includes.txt
seq 3 1 9 | sort --random-sort > excludes.txt
cat includes.txt excludes.txt excludes.txt | sort | uniq --unique
# Output:
1
2
This is also relatively fast, compared to grep
.
Although there are already a lot of good answers to this question, I came up with another solution that I think is more simple. Surround your query with a try block and the following catch:
catch (SQLiteException e){
if (e.getMessage().contains("no such table")){
Log.e(TAG, "Creating table " + TABLE_NAME + "because it doesn't exist!" );
// create table
// re-run query, etc.
}
}
It worked for me!
Building on Vitaliy's CSS and Mehmet's jQuery, I changed the a
tags to span
tags and incorporated some Glyphicons and badging into my take on a Bootstrap tree widget.
Example:
For extra credit, I've created a GitHub project to host the jQuery and LESS code that goes into adding this tree component to Bootstrap. Please see the project documentation at http://jhfrench.github.io/bootstrap-tree/docs/example.html.
Alternately, here is the LESS source to generate that CSS (the JS can be picked up from the jsFiddle):
@import "../../../external/bootstrap/less/bootstrap.less"; /* substitute your path to the bootstrap.less file */
@import "../../../external/bootstrap/less/responsive.less"; /* optional; substitute your path to the responsive.less file */
/* collapsable tree */
.tree {
.border-radius(@baseBorderRadius);
.box-shadow(inset 0 1px 1px rgba(0,0,0,.05));
background-color: lighten(@grayLighter, 5%);
border: 1px solid @grayLight;
margin-bottom: 10px;
max-height: 300px;
min-height: 20px;
overflow-y: auto;
padding: 19px;
a {
display: block;
overflow: hidden;
text-overflow: ellipsis;
width: 90%;
}
li {
list-style-type: none;
margin: 0px 0;
padding: 4px 0px 0px 2px;
position: relative;
&::before, &::after {
content: '';
left: -20px;
position: absolute;
right: auto;
}
&::before {
border-left: 1px solid @grayLight;
bottom: 50px;
height: 100%;
top: 0;
width: 1px;
}
&::after {
border-top: 1px solid @grayLight;
height: 20px;
top: 13px;
width: 23px;
}
span {
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
border: 1px solid @grayLight;
border-radius: 5px;
display: inline-block;
line-height: 14px;
padding: 2px 4px;
text-decoration: none;
}
&.parent_li > span {
cursor: pointer;
/*Time for some hover effects*/
&:hover, &:hover+ul li span {
background: @grayLighter;
border: 1px solid @gray;
color: #000;
}
}
/*Remove connectors after last child*/
&:last-child::before {
height: 30px;
}
}
/*Remove connectors before root*/
> ul > li::before, > ul > li::after {
border: 0;
}
}
I noticed this issue recently and it is frustrating that excel changes a blank string into a 0. I do not think that a formula should solve this issue because adding more logic to a complex formula may be cumbersome and might even end up breaking the original formula. I have two non formula options below.
If you want to keep the formulas in the cells and have them return 0 instead of "" use the following Click Path:
Scroll to "Display options for this worksheet:"
I also want to give a simple manual solution if you want to change a value (as opposed to a formula) from 0 to a blank string. This solution is better than Find and Replace because it will not replace a number like 101 with 11.
The other data will remain if you used the filter properly and the back button is always there if something goes wrong. I understand option 2 is very manual and "unelegant" but it does successfully convert a 0 into a blank string and it may relieve a frustrated individual who does not want to use an if statement.
I personally learned something exploring this (very dry) excel issue today and I am personally using these methods moving forward. A quick macro of option 2 could be a good option if this is a frequent task for an intermediate excel user.
<body onload="window.print()">
or
window.onload = function() { window.print(); }
Just change moveCamera to animateCamera like below
Googlemap.animateCamera(CameraUpdateFactory.newLatLngZoom(locate, 16F))
Old question, but in my case i found using position:fixed
solved it for me.
My situation might have been a little different though. I had an overlayed semi transparent div
with a loading animation in it that I needed displayed while the page was loading. So using height:auto / 100%
or min-height: 100%
both filled the window but not the off-screen area. Using position:fixed
made this overlay scroll with the user, so it always covered the visible area and kept my preloading animation centred on the screen.
To solve this issue, put these two lines in your index.html page.
<script>var exports = {"__esModule": true};</script>
<script type="text/javascript" src="/main.js">
Make sure to check your main.js file path.
Try xcorr
, it's a built-in function in MATLAB for cross-correlation:
c = xcorr(A_1, A_2);
However, note that it requires the Signal Processing Toolbox installed. If not, you can look into the corrcoef
command instead.
The shortest solution for the year 2020 (for those happy people who don't need to support IE)
Tested in Chrome, Firefox, Safari.
function onBeforeUnload(e) {
if (thereAreUnsavedChanges()) {
e.preventDefault();
e.returnValue = '';
return;
}
delete e['returnValue'];
}
window.addEventListener('beforeunload', onBeforeUnload);
Actually no one modern browser (Chrome, Firefox, Safari) displays the "return value" as a question to user. Instead they show their own confirmation text (it depends on browser). But we still need to return some (even empty) string to trigger that confirmation on Chrome.
file_put_contents($file, print_r($array, true), FILE_APPEND)
Here's the solution I use. I can't remember why I couldn't just use the PictureBox.Load methods. I'm pretty sure it's because I wanted to properly scale & center the downloaded image into the PictureBox control. If I recall, all the scaling options on PictureBox either stretch the image, or will resize the PictureBox to fit the image. I wanted a properly scaled and centered image in the size I set for PictureBox.
Now, I just need to make a async version...
Here's my methods:
#region Image Utilities
/// <summary>
/// Loads an image from a URL into a Bitmap object.
/// Currently as written if there is an error during downloading of the image, no exception is thrown.
/// </summary>
/// <param name="url"></param>
/// <returns></returns>
public static Bitmap LoadPicture(string url)
{
System.Net.HttpWebRequest wreq;
System.Net.HttpWebResponse wresp;
Stream mystream;
Bitmap bmp;
bmp = null;
mystream = null;
wresp = null;
try
{
wreq = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(url);
wreq.AllowWriteStreamBuffering = true;
wresp = (System.Net.HttpWebResponse)wreq.GetResponse();
if ((mystream = wresp.GetResponseStream()) != null)
bmp = new Bitmap(mystream);
}
catch
{
// Do nothing...
}
finally
{
if (mystream != null)
mystream.Close();
if (wresp != null)
wresp.Close();
}
return (bmp);
}
/// <summary>
/// Takes in an image, scales it maintaining the proper aspect ratio of the image such it fits in the PictureBox's canvas size and loads the image into picture box.
/// Has an optional param to center the image in the picture box if it's smaller then canvas size.
/// </summary>
/// <param name="image">The Image you want to load, see LoadPicture</param>
/// <param name="canvas">The canvas you want the picture to load into</param>
/// <param name="centerImage"></param>
/// <returns></returns>
public static Image ResizeImage(Image image, PictureBox canvas, bool centerImage )
{
if (image == null || canvas == null)
{
return null;
}
int canvasWidth = canvas.Size.Width;
int canvasHeight = canvas.Size.Height;
int originalWidth = image.Size.Width;
int originalHeight = image.Size.Height;
System.Drawing.Image thumbnail =
new Bitmap(canvasWidth, canvasHeight); // changed parm names
System.Drawing.Graphics graphic =
System.Drawing.Graphics.FromImage(thumbnail);
graphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphic.SmoothingMode = SmoothingMode.HighQuality;
graphic.PixelOffsetMode = PixelOffsetMode.HighQuality;
graphic.CompositingQuality = CompositingQuality.HighQuality;
/* ------------------ new code --------------- */
// Figure out the ratio
double ratioX = (double)canvasWidth / (double)originalWidth;
double ratioY = (double)canvasHeight / (double)originalHeight;
double ratio = ratioX < ratioY ? ratioX : ratioY; // use whichever multiplier is smaller
// now we can get the new height and width
int newHeight = Convert.ToInt32(originalHeight * ratio);
int newWidth = Convert.ToInt32(originalWidth * ratio);
// Now calculate the X,Y position of the upper-left corner
// (one of these will always be zero)
int posX = Convert.ToInt32((canvasWidth - (image.Width * ratio)) / 2);
int posY = Convert.ToInt32((canvasHeight - (image.Height * ratio)) / 2);
if (!centerImage)
{
posX = 0;
posY = 0;
}
graphic.Clear(Color.White); // white padding
graphic.DrawImage(image, posX, posY, newWidth, newHeight);
/* ------------- end new code ---------------- */
System.Drawing.Imaging.ImageCodecInfo[] info =
ImageCodecInfo.GetImageEncoders();
EncoderParameters encoderParameters;
encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality,
100L);
Stream s = new System.IO.MemoryStream();
thumbnail.Save(s, info[1],
encoderParameters);
return Image.FromStream(s);
}
#endregion
Here's the required includes. (Some might be needed by other code, but including all to be safe)
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.IO;
using System.Drawing.Imaging;
using System.Text.RegularExpressions;
using System.Drawing;
How I generally use it:
ImageUtil.ResizeImage(ImageUtil.LoadPicture( "http://someurl/img.jpg", pictureBox1, true);
I tested the following procedure under macOS Mojave 10.14.6 (18G3020).
Launch Automator. Create a document of type “Quick Action”:
(In older versions of macOS, use the “Service” template.)
In the new Automator document, add a “Run AppleScript” action. (You can type “run applescript” into the search field at the top of the action list to find it.) Here's the AppleScript to paste into the action:
on run {input, parameters}
tell application "Terminal"
if it is running then
do script ""
end if
activate
end tell
end run
Set the “Workflow receives” popup to “no input”. It should look like this overall:
Save the document with the name “New Terminal”. Then go to the Automator menu (or the app menu in any running application) and open the Services submenu. You should now see the “New Terminal” quick action:
If you click the “New Terminal” menu item, you'll get a dialog box:
Click OK to allow the action to run. You'll see this dialog once in each application that's frontmost when you use the action. In other words, the first time you use the action while Finder is frontmost, you'll see the dialog. And the first time you use the action while Safari is frontmost, you'll see the dialog. And so on.
After you click OK in the dialog, Terminal should open a new window.
To assign a keyboard shortcut to the quick action, choose the “Services Preferences…” item from the Services menu. (Or launch System Preferences, choose the Keyboard pane, then choose the Shortcuts tab, then choose Services from the left-hand list.) Scroll to the bottom of the right-hand list and find the New Terminal service. Click it and you should see an “Add Shortcut” button:
Click the button and press your preferred keyboard shortcut. Then, scratch your head, because (when I tried it) the Add Shortcut button reappears. But click the button again and you should see your shortcut:
Now you should be able to press your keyboard shortcut in most circumstances to get a new terminal window.
This borrows from a few other answers here but I thought it might help someone. If you define the following function on your custom object, then you have a factory function that you can pass a generic object into and it will return for you an instance of the class.
CustomObject.create = function (obj) {
var field = new CustomObject();
for (var prop in obj) {
if (field.hasOwnProperty(prop)) {
field[prop] = obj[prop];
}
}
return field;
}
Use like this
var typedObj = CustomObject.create(genericObj);
var sels = //Here is your array of SELECTs
var json = { };
for(var i = 0, l = sels.length; i < l; i++) {
json[sels[i].id] = sels[i].value;
}
I had to do something very similar to find out why my iPhone was bleeding cellular network data, eating 80% of my 500Mb allowance in a couple of days.
Unfortunately I had to packet sniff whilst on 3G/4G and couldn't rely on being on wireless. So if you need an "industrial" solution then this is how you sniff all traffic (not just http) on any network.
Basic recipe:
Detailed'ish instructions:
Note that the above implementation is not security focussed it's simply about getting a detailed packet capture of all of your iPhone's traffic on 3G/4G/Wireless networks
While using laravel 5
use this code as you don`t need headers.
return response()->download($pathToFile);
.
If you are using Fileentry
you can use below function for downloading.
// download file
public function download($fileId){
$entry = Fileentry::where('file_id', '=', $fileId)->firstOrFail();
$pathToFile=storage_path()."/app/".$entry->filename;
return response()->download($pathToFile);
}
Model.select(:rating).distinct
To run once, daily at 10PM you should do something like this:
0 22 * * *
Full size image: http://i.stack.imgur.com/BeXHD.jpg
Source: softpanorama.org
You might be doing a PUT call for GET operation Please check once
This is a nice little paper on this topic. His empirical conclusion is that Treesort is best, followed by Quicksort and Mergesort. Sediment sort, bubble sort, selection sort perform very badly.
A COMPARATIVE STUDY OF LINKED LIST SORTING ALGORITHMS by Ching-Kuang Shene
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.31.9981
I've had the same problem twice already and the easiest and most concise solution that I found is located here (in MSDN Blogs -> Games for Windows and the DirectX SDK). However, just in case that page goes down, here's the method:
Remove the Visual C++ 2010 Redistributable Package version 10.0.40219 (Service Pack 1) from the system (both x86 and x64 if applicable). This can be easily done via a command-line with administrator rights:
MsiExec.exe /passive /X{F0C3E5D1-1ADE-321E-8167-68EF0DE699A5}
MsiExec.exe /passive /X{1D8E6291-B0D5-35EC-8441-6616F567A0F7}
Install the DirectX SDK (June 2010)
Reinstall the Visual C++ 2010 Redistributable Package version 10.0.40219 (Service Pack 1). On an x64 system, you should install both the x86 and x64 versions of the C++ REDIST. Be sure to install the most current version available, which at this point is the KB 2565063 with a security fix.
Note: This issue does not affect earlier version of the DirectX SDK which deploy the VS 2005 / VS 2008 CRT REDIST and do not deploy the VS 2010 CRT REDIST. This issue does not affect the DirectX End-User Runtime web or stand-alone installer as those packages do not deploy any version of the VC++ CRT.
File Checksum Integrity Verifier: This of course assumes you actually have an uncorrupted copy of the DirectX SDK setup package. The best way to validate this it to run
fciv -sha1 DXSDK_Jun10.exe
and verify you get
8fe98c00fde0f524760bb9021f438bd7d9304a69 dxsdk_jun10.exe
A great Spring MVC quickstart archetype is available on GitHub, courtesy of kolorobot. Good instructions are provided on how to install it to your local Maven repo and use it to create a new Spring MVC project. He’s even helpfully included the Tomcat 7 Maven plugin in the archetypical project so that the newly created Spring MVC can be run from the command line without having to manually deploy it to an application server.
Kolorobot’s example application includes the following:
Use the oncontextmenu
event.
Here's an example:
<div oncontextmenu="javascript:alert('success!');return false;">
Lorem Ipsum
</div>
And using event listeners (credit to rampion from a comment in 2011):
el.addEventListener('contextmenu', function(ev) {
ev.preventDefault();
alert('success!');
return false;
}, false);
Don't forget to return false, otherwise the standard context menu will still pop up.
If you are going to use a function you've written rather than javascript:alert("Success!")
, remember to return false in BOTH the function AND the oncontextmenu
attribute.
I was able to connect from SSMS using "(LocalDb)\Projects". That's the way it appears in VS2012 as well.
can you try it once...
String dob="your date String";
String dobis=null;
final DateFormat df = new SimpleDateFormat("yyyy-MMM-dd");
final Calendar c = Calendar.getInstance();
try {
if(dob!=null && !dob.isEmpty() && dob != "")
{
c.setTime(df.parse(dob));
int month=c.get(Calendar.MONTH);
month=month+1;
dobis=c.get(Calendar.YEAR)+"-"+month+"-"+c.get(Calendar.DAY_OF_MONTH);
}
}
Radio buttons are meant to be required options... If you want them to be unchecked, use a checkbox, there is no need to complicate things and allow users to uncheck a radio button; removing the JQuery allows you to select from one of them
Under our security policy I may not use https with pypi, SSL-inspection rewrites certificates, it breaks the built-in security of pip for www.python.org. The man in the middle is the network-admin.
So I need to use plain http. To do so I need to override the system proxy as well as the default pypi:
bin/pip install --proxy=squidproxy:3128 -i http://www.python.org/pypi --upgrade "SQLAlchemy>=0.7.10"
A good practice is write text inside String.xml
example:
String.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="yellow">Yellow</string>
</resources>
and inside layout:
<TextView android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/yellow" />
You can try setting the target attribute of your form to a hidden iframe, so the page containing the form won't get reloaded.
I tried it with file uploads (which we know can't be done via AJAX), and it worked beautifully.
Use the script: sp_blocker_pss08 or SQL Trace/Profiler and the Blocked Process Report event class.
Besides {{ 1 * num_str + 1}} You can also try like this(minus first):
{{ num_str - 0 + 1}}
But the it's very fragile, if num_str contains letters, then it will fail. So better should try writing a filter as @hassassin said, or preprocess the data right after initiating it.
If you are fortunate enough to be running Python 3.4+, you can use pathlib
:
>>> from pathlib import Path
>>> dirname = '/home/reports'
>>> filename = 'daily'
>>> suffix = '.pdf'
>>> Path(dirname, filename).with_suffix(suffix)
PosixPath('/home/reports/daily.pdf')
The following lines will do the trick:
ActiveSheet.EnableCalculation = False
ActiveSheet.EnableCalculation = True
Edit: The .Calculate()
method will not work for all functions. I tested it on a sheet with add-in array functions. The production sheet I'm using is complex enough that I don't want to test the .CalculateFull()
method, but it may work.
Just happened to work at this also, use https://www.tutorialspoint.com/java_xml/java_dom_create_document.htm the example from here, and read the explanations. Also I provide you my own example:
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.newDocument();
// root element
Element rootElement = doc.createElement("words");
doc.appendChild(rootElement);
while (ptbt.hasNext()) {
CoreLabel label = ptbt.next();
System.out.println(label);
m = r1.matcher(label.toString());
//System.out.println(m.find());
if (m.find() == true) {
Element w = doc.createElement("word");
w.appendChild(doc.createTextNode(label.toString()));
rootElement.appendChild(w);
}
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new File("C:\\Users\\workspace\\Tokenizer\\tokens.xml"));
transformer.transform(source, result);
// Output to console for testing
StreamResult consoleResult = new StreamResult(System.out);
transformer.transform(source, consoleResult);
This is in the context of using the tokenizer from Stanford for Natural Language Processing, just a part of it to make an idea on how to add elements. The output is: Billbuyedapples (I've read the sentence from a file)
One more solution for mysql 8.0.1 and mariadb 10.2.2 using recursive common table expressions:
with recursive dates as (
select '2010-01-20' as date
union all
select date + interval 1 day from dates where date < '2010-01-24'
)
select * from dates;
The replace one liner is great but only works because XX and bar have the same lentgh
A good and general def would be:
def findN(s,sub,N,replaceString="XXX"):
return s.replace(sub,replaceString,N-1).find(sub) - (len(replaceString)-len(sub))*(N-1)
ASP.NET MVC doesn't work on events like ASP classic; there's no "button click event". Your controller methods correspond to requests sent to the server.
Instead, you need to wrap that form in code something like this:
@using (Html.BeginForm("SignUp", "Account", FormMethod.Post))
{
<!-- form goes here -->
<input type="submit" value="Sign Up" />
}
This will set up a form, and then your submit input will trigger a POST, which will hit your SignUp()
method, assuming your routes are properly set up (the defaults should work).
Summary.
Can I nest git repositories?
Yes. However, by default git does not track the .git
folder of the nested repository. Git has features designed to manage nested repositories (read on).
Does it make sense to git init/add the /project_root to ease management of everything locally or do I have to manage my_project and the 3rd party one separately?
It probably doesn't make sense as git has features to manage nested repositories. Git's built in features to manage nested repositories are submodule
and subtree
.
Here is a blog on the topic and here is a SO question that covers the pros and cons of using each.
Don't use spaces...
(Incorrect)
SPTH = '/home/Foo/Documents/Programs/ShellScripts/Butler'
(Correct)
SPTH='/home/Foo/Documents/Programs/ShellScripts/Butler'
Look at the START command, you can do this:
START rest-of-your-program-name
For instance, this batch-file will wait until notepad exits:
@echo off
notepad c:\test.txt
However, this won't:
@echo off
start notepad c:\test.txt
This is what do you want? DEMO. Try to shrink the browser's window and you'll see that the elements will be ordered.
What I used? Flexible Box Model or Flexbox.
Just add the follow CSS classes to your container element (in this case div#container
):
flex-init-setup
and flex-ppal-setup
.
Where:
Here are the CSS rules:
.flex-init-setup {
display: -webkit-box;
display: -moz-box;
display: -webkit-flex;
display: -ms-flexbox;
display: flex;
}
.flex-ppal-setup {
-webkit-flex-flow: column wrap;
-moz-flex-flow: column wrap;
flex-flow: column wrap;
-webkit-justify-content: center;
-moz-justify-content: center;
justify-content: center;
}
Be good, Leonardo
An alternative solution uses the stash:
Before:
~/dev/gitpro $git stash list
~/dev/gitpro $git log --oneline -3
* 7049dd5 (HEAD -> master) c111
* 3f1fa3d c222
* 0a0f6c4 c333
note you cannot run 'git stash pop' without specifying the stash@{1} entry. The stash is a LIFO stack -- not FIFO -- so that would incorrectly pop the stash@{0} entry with c222's changes (instead of stash@{1} with c111's changes).
note if there are conflicting chunks between commits 111 and 222, then you'll be forced to resolve them when attempting to pop. (This would be the case if you went with an alternative rebase solution as well.)
After:
~/dev/gitpro $git stash list
stash@{0}: On master: c222
~/dev/gitpro $git log -2 --oneline
* edbd9e8 (HEAD -> master) c111
* 0a0f6c4 c333
A function uses the globals of the module it's defined in. Instead of setting a = 3
, for example, you should be setting module1.a = 3
. So, if you want cur
available as a global in utilities_module
, set utilities_module.cur
.
A better solution: don't use globals. Pass the variables you need into the functions that need it, or create a class to bundle all the data together, and pass it when initializing the instance.
Why not use parseFloat
?
var someNumber = 123.456;
someNumber = parseFloat(someNumber.toFixed(2));
alert(typeof(someNumber));
//alerts number
import FormsModule in your AppModule to work with two way binding [(ngModel)] with your
I like @CHR15TO's answer, unlike other answers I've seen on other similar questions, that answer actually shows how to properly escape a user provided search string (rather than saying it would be necessary without showing how).
However, it's still quite clunky, and possibly relatively slower. So why not have a specific solution to what is likely a common requirement for coders? (And why not include it in the ES6 API BTW?)
My answer [https://stackoverflow.com/a/38290557/887092] on a similar question enables the following:
var haystack = 'A. BAIL. Of. Hay.';
var needle = 'bail.';
var index = haystack.naturalIndexOf(needle);
Login your Google account at myaccount.google.com/security go to "Login" and then "Security", scroll to bottom then enable the "Allow less secure apps" option.
What you asked is already answered so this is just an additional info for those who want only 2 decimal digits if optional decimal point is entered:
^\d+(\.\d{2})?$
^ : start of the string
\d : a digit (equal to [0-9])
+ : one and unlimited times
Capturing Group (.\d{2})?
? : zero and one times
. : character .
\d : a digit (equal to [0-9])
{2} : exactly 2 times
$ : end of the string
1 : match
123 : match
123.00 : match
123. : no match
123.. : no match
123.0 : no match
123.000 : no match
123.00.00 : no match
In addition to given answer, it's worth noting that compiler is not required to initialize constexpr
variable at compile time, knowing that the difference between constexpr
and static constexpr
is that to use static constexpr
you ensure the variable is initialized only once.
Following code demonstrates how constexpr
variable is initialized multiple times (with same value though), while static constexpr
is surely initialized only once.
In addition the code compares the advantage of constexpr
against const
in combination with static
.
#include <iostream>
#include <string>
#include <cassert>
#include <sstream>
const short const_short = 0;
constexpr short constexpr_short = 0;
// print only last 3 address value numbers
const short addr_offset = 3;
// This function will print name, value and address for given parameter
void print_properties(std::string ref_name, const short* param, short offset)
{
// determine initial size of strings
std::string title = "value \\ address of ";
const size_t ref_size = ref_name.size();
const size_t title_size = title.size();
assert(title_size > ref_size);
// create title (resize)
title.append(ref_name);
title.append(" is ");
title.append(title_size - ref_size, ' ');
// extract last 'offset' values from address
std::stringstream addr;
addr << param;
const std::string addr_str = addr.str();
const size_t addr_size = addr_str.size();
assert(addr_size - offset > 0);
// print title / ref value / address at offset
std::cout << title << *param << " " << addr_str.substr(addr_size - offset) << std::endl;
}
// here we test initialization of const variable (runtime)
void const_value(const short counter)
{
static short temp = const_short;
const short const_var = ++temp;
print_properties("const", &const_var, addr_offset);
if (counter)
const_value(counter - 1);
}
// here we test initialization of static variable (runtime)
void static_value(const short counter)
{
static short temp = const_short;
static short static_var = ++temp;
print_properties("static", &static_var, addr_offset);
if (counter)
static_value(counter - 1);
}
// here we test initialization of static const variable (runtime)
void static_const_value(const short counter)
{
static short temp = const_short;
static const short static_var = ++temp;
print_properties("static const", &static_var, addr_offset);
if (counter)
static_const_value(counter - 1);
}
// here we test initialization of constexpr variable (compile time)
void constexpr_value(const short counter)
{
constexpr short constexpr_var = constexpr_short;
print_properties("constexpr", &constexpr_var, addr_offset);
if (counter)
constexpr_value(counter - 1);
}
// here we test initialization of static constexpr variable (compile time)
void static_constexpr_value(const short counter)
{
static constexpr short static_constexpr_var = constexpr_short;
print_properties("static constexpr", &static_constexpr_var, addr_offset);
if (counter)
static_constexpr_value(counter - 1);
}
// final test call this method from main()
void test_static_const()
{
constexpr short counter = 2;
const_value(counter);
std::cout << std::endl;
static_value(counter);
std::cout << std::endl;
static_const_value(counter);
std::cout << std::endl;
constexpr_value(counter);
std::cout << std::endl;
static_constexpr_value(counter);
std::cout << std::endl;
}
Possible program output:
value \ address of const is 1 564
value \ address of const is 2 3D4
value \ address of const is 3 244
value \ address of static is 1 C58
value \ address of static is 1 C58
value \ address of static is 1 C58
value \ address of static const is 1 C64
value \ address of static const is 1 C64
value \ address of static const is 1 C64
value \ address of constexpr is 0 564
value \ address of constexpr is 0 3D4
value \ address of constexpr is 0 244
value \ address of static constexpr is 0 EA0
value \ address of static constexpr is 0 EA0
value \ address of static constexpr is 0 EA0
As you can see yourself constexpr
is initilized multiple times (address is not the same) while static
keyword ensures that initialization is performed only once.
Try the following:
ssh-agent sh -c 'ssh-add && git push heroku master'
Depending on how your layout works, you might get away with setting the background on the <html>
element, which is always at least the height of the viewport.
It sounds like you're asking about a function
string Left(string s, int left)
that will return the leftmost left
characters of the string s
. In that case you can just use String.Substring
. You can write this as an extension method:
public static class StringExtensions
{
public static string Left(this string value, int maxLength)
{
if (string.IsNullOrEmpty(value)) return value;
maxLength = Math.Abs(maxLength);
return ( value.Length <= maxLength
? value
: value.Substring(0, maxLength)
);
}
}
and use it like so:
string left = s.Left(number);
For your specific example:
string s = fac.GetCachedValue("Auto Print Clinical Warnings").ToLower() + " ";
string left = s.Substring(0, 1);
I want to alert('test'); in an input type text but it should not execute the alert(alert prompt).
<input type="text" value="<script>alert('test');</script>" />
Produces:
You can do this programatically via JavaScript. First obtain a reference to the input element, then set the value
attribute.
var inputElement = document.querySelector("input");
inputElement.value = "<script>alert('test');<\/script>";
var empty struct{}
var ok bool
var m map[string]struct{}
m = make(map[string]struct{})
m["somestring"] = empty
_, ok = m["somestring"]
fmt.Println("somestring exists?", ok)
_, ok = m["not"]
fmt.Println("not exists?", ok)
Then, go run maps.go somestring exists? true not exists? false
For information MCRYPT_MODE_ECB
doesn't use the IV (initialization vector). ECB mode divide your message into blocks and each block is encrypted separately. I really don't recommended it.
CBC mode use the IV to make each message unique. CBC is recommended and should be used instead of ECB.
Example :
<?php
$password = "myPassword_!";
$messageClear = "Secret message";
// 32 byte binary blob
$aes256Key = hash("SHA256", $password, true);
// for good entropy (for MCRYPT_RAND)
srand((double) microtime() * 1000000);
// generate random iv
$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_CBC), MCRYPT_RAND);
$crypted = fnEncrypt($messageClear, $aes256Key);
$newClear = fnDecrypt($crypted, $aes256Key);
echo
"IV: <code>".$iv."</code><br/>".
"Encrypred: <code>".$crypted."</code><br/>".
"Decrypred: <code>".$newClear."</code><br/>";
function fnEncrypt($sValue, $sSecretKey) {
global $iv;
return rtrim(base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $sSecretKey, $sValue, MCRYPT_MODE_CBC, $iv)), "\0\3");
}
function fnDecrypt($sValue, $sSecretKey) {
global $iv;
return rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $sSecretKey, base64_decode($sValue), MCRYPT_MODE_CBC, $iv), "\0\3");
}
You have to stock the IV to decode each message (IV are not secret). Each message is unique because each message has an unique IV.
Use Spotlight.
But only the last simulator will be opened. If you used iPad Air 2
last time, Spotlight will open it. If you wanna open iPhone 6s
this time, that's a problem.
We found a proposed method and tested:
<a href="sms:12345678?body=Hello my friend">Send SMS</a>
Here are the results:
I therefore conclude it doesn't really work - with this method at least.
Think of it like this, every time you see a arrow, you replace it with function
.function parameters
are defined before the arrow.
So in your example:
field => // function(field){}
e => { e.preventDefault(); } // function(e){e.preventDefault();}
and then together:
function (field) {
return function (e) {
e.preventDefault();
};
}
// Basic syntax:
(param1, param2, paramN) => { statements }
(param1, param2, paramN) => expression
// equivalent to: => { return expression; }
// Parentheses are optional when there's only one argument:
singleParam => { statements }
singleParam => expression
In App.config:
<add key="YOURKEY" value="a,b,c"/>
In C#:
string[] InFormOfStringArray = ConfigurationManager.AppSettings["YOURKEY"].Split(',').Select(s => s.Trim()).ToArray();
List<string> list = new List<string>(InFormOfStringArray);
This answer is a small addition to the highest voted answer and works for SQL Server. The question requested an auto increment primary key, the current answer does add the primary key, but it is not flagged as auto-increment. The script below checks for the columns, existence, and adds it with the autoincrement flag enabled.
IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'YourTable' AND COLUMN_NAME = 'PKColumnName')
BEGIN
ALTER TABLE dbo.YourTable
ADD PKColumnName INT IDENTITY(1,1)
CONSTRAINT PK_YourTable PRIMARY KEY CLUSTERED
END
GO
I couldn't solve the problem; Then I did the following and the issue was resolved: Refer here:
sudo launchctl unload -w /System/Library/LaunchDaemons/ssh.plist
(Supply your password when it is requested)
sudo launchctl load -w /System/Library/LaunchDaemons/ssh.plist
ssh -v localhost
sudo launchctl list | grep "sshd"
46427 - com.openssh.sshd
Windows PowerShell provides two mechanisms for reporting errors: one mechanism for terminating errors and another mechanism for non-terminating errors.
Internal CmdLets code can call a ThrowTerminatingError
method when an error occurs that does not or should not allow the cmdlet to continue to process its input objects. The script writter can them use exception to catch these error.
EX :
try
{
Your database code
}
catch
{
Error reporting/logging
}
Internal CmdLets code can call a WriteError
method to report non-terminating errors when the cmdlet can continue processing the input objects. The script writer can then use -ErrorAction option to hide the messages, or use the $ErrorActionPreference
to setup the entire script behaviour.
You first have to define a JTextArea as per usual:
public final JTextArea mainConsole = new JTextArea("");
Then you put a JScrollPane over the TextArea
JScrollPane scrollPane = new JScrollPane(mainConsole);
scrollPane.setBounds(10,60,780,500);
scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
The last line says that the vertical scrollbar will always be there. There is a similar command for horizontal. Otherwise, the scrollbar will only show up when it is needed (or never, if you use _SCROLLBAR_NEVER). I guess it's your call which way you want to use it.
You can also add wordwrap to the JTextArea if you want to:Guide Here
Good luck,
Norm M
P.S. Make sure you add the ScrollPane to the JPanel and not add the JTextArea.
Simply use
sp_restoredb 'Your Database Name' ,'Location From you want to restore'
Example: sp_restoredb 'omDB','D:\abc.bak'
You have to return a promise instead of a variable. So in your function just return:
return relationsManagerResource.GetParentId(nodeId)
And later resolve the returned promise.
Or you can make another deferred and resolve theParentId
with it.
The following worked for me with clang. Allows what appears as symbolic macro value comparison. #error xxx is just to see what compiler really does. Replacing cat definition with #define cat(a,b) a ## b breaks things.
#define cat(a,...) cat_impl(a, __VA_ARGS__)
#define cat_impl(a,...) a ## __VA_ARGS__
#define xUSER_jack 0
#define xUSER_queen 1
#define USER_VAL cat(xUSER_,USER)
#define USER jack // jack or queen
#if USER_VAL==xUSER_jack
#error USER=jack
#define USER_VS "queen"
#elif USER_VAL==xUSER_queen
#error USER=queen
#define USER_VS "jack"
#endif
Another variation you can try is(expanding @mnel's answer) if you have many temp'x'.
here "n" could be the number of temp variables present
rm(list = c(paste("temp",c(1:n),sep="")))
Most debugger consoles support displaying objects directly. Just use
console.log(obj);
Depending on your debugger this most likely will display the object in the console as a collapsed tree. You can open the tree and inspect the object.
I am just wondering why to use some libraries for JWT token decoding and verification at all.
Encoded JWT token can be created using following pseudocode
var headers = base64URLencode(myHeaders);
var claims = base64URLencode(myClaims);
var payload = header + "." + claims;
var signature = base64URLencode(HMACSHA256(payload, secret));
var encodedJWT = payload + "." + signature;
It is very easy to do without any specific library. Using following code:
using System;
using System.Text;
using System.Security.Cryptography;
public class Program
{
// More info: https://stormpath.com/blog/jwt-the-right-way/
public static void Main()
{
var header = "{\"typ\":\"JWT\",\"alg\":\"HS256\"}";
var claims = "{\"sub\":\"1047986\",\"email\":\"[email protected]\",\"given_name\":\"John\",\"family_name\":\"Doe\",\"primarysid\":\"b521a2af99bfdc65e04010ac1d046ff5\",\"iss\":\"http://example.com\",\"aud\":\"myapp\",\"exp\":1460555281,\"nbf\":1457963281}";
var b64header = Convert.ToBase64String(Encoding.UTF8.GetBytes(header))
.Replace('+', '-')
.Replace('/', '_')
.Replace("=", "");
var b64claims = Convert.ToBase64String(Encoding.UTF8.GetBytes(claims))
.Replace('+', '-')
.Replace('/', '_')
.Replace("=", "");
var payload = b64header + "." + b64claims;
Console.WriteLine("JWT without sig: " + payload);
byte[] key = Convert.FromBase64String("mPorwQB8kMDNQeeYO35KOrMMFn6rFVmbIohBphJPnp4=");
byte[] message = Encoding.UTF8.GetBytes(payload);
string sig = Convert.ToBase64String(HashHMAC(key, message))
.Replace('+', '-')
.Replace('/', '_')
.Replace("=", "");
Console.WriteLine("JWT with signature: " + payload + "." + sig);
}
private static byte[] HashHMAC(byte[] key, byte[] message)
{
var hash = new HMACSHA256(key);
return hash.ComputeHash(message);
}
}
The token decoding is reversed version of the code above.To verify the signature you will need to the same and compare signature part with calculated signature.
UPDATE: For those how are struggling how to do base64 urlsafe encoding/decoding please see another SO question, and also wiki and RFCs
you cant do this. Use a custom popup. Something like with the help of jQuery UI or jQuery BOXY.
for jQuery UI http://jqueryui.com/demos/dialog/
for jQuery BOXY http://onehackoranother.com/projects/jquery/boxy/
This would be in addition to previous, if someone meets a problem with scandic letters that isn't solved with the solution above.
If the java source files contain scandic letters they need to be interpreted correctly by the Java used for compiling. (e.g. scandic letters used in constants)
Even that the files are stored in UTF-8 and the Maven is configured to use UTF-8, the System Java used by the Maven will still use the system default (eg. in Windows: cp1252).
This will be visible only running the tests via maven (possibly printing the values of these constants in tests. The printed scandic letters would show as '< ?>') If not tested properly, this would corrupt the class files as compile result and be left unnoticed.
To prevent this, you have to set the Java used for compiling to use UTF-8 encoding. It is not enough to have the encoding settings in the maven pom.xml, you need to set the environment variable: JAVA_TOOL_OPTIONS = -Dfile.encoding=UTF8
Also, if using Eclipse in Windows, you may need to set the encoding used in addition to this (if you run individual test via eclipse).
Using the BCNF definition
If and only if for every one of its dependencies X ? Y, at least one of the following conditions hold:
and the 3NF definition
If and only if, for each of its functional dependencies X ? A, at least one of the following conditions holds:
whereas
Where
That is, no partial subset (any non trivial subset except the full set) of a candidate key can be functionally dependent on anything other than a superkey.
A table/relation not in BCNF is subject to anomalies such as the update anomalies mentioned in the pizza example by another user. Unfortunately,
An example of the difference can currently be found at "3NF table not meeting BCNF (Boyce–Codd normal form)" on Wikipedia, where the following table meets 3NF but not BCNF because "Tennis Court" (a partial key/prime attribute) depends on "Rate Type" (a partial key/prime attribute that is not a superkey), which is a dependency we could determine by asking the clients of the database, the tennis club:
Today's Tennis Court Bookings (3NF, not BCNF)
Court Start Time End Time Rate Type
------- ---------- -------- ---------
1 09:30 10:30 SAVER
1 11:00 12:00 SAVER
1 14:00 15:30 STANDARD
2 10:00 11:30 PREMIUM-B
2 11:30 13:30 PREMIUM-B
2 15:00 16:30 PREMIUM-A
The table's superkeys are:
S1 = {Court, Start Time}
S2 = {Court, End Time}
S3 = {Rate Type, Start Time}
S4 = {Rate Type, End Time}
S5 = {Court, Start Time, End Time}
S6 = {Rate Type, Start Time, End Time}
S7 = {Court, Rate Type, Start Time}
S8 = {Court, Rate Type, End Time}
ST = {Court, Rate Type, Start Time, End Time}, the trivial superkey
The 3NF problem: The partial key/prime attribute "Court" is dependent on something other than a superkey. Instead, it is dependent on the partial key/prime attribute "Rate Type". This means that the user must manually change the rate type if we upgrade a court, or manually change the court if wanting to apply a rate change.
(In technical terms, we cannot guarantee that the "Rate Type" -> "Court" functional dependency will not be violated.)
The BCNF solution: If we want to place the above table in BCNF we can decompose the given relation/table into the following two relations/tables (assuming we know that the rate type is dependent on only the court and membership status, which we could discover by asking the clients of our database, the owners of the tennis club):
Rate Types (BCNF and the weaker 3NF, which is implied by BCNF)
Rate Type Court Member Flag
--------- ----- -----------
SAVER 1 Yes
STANDARD 1 No
PREMIUM-A 2 Yes
PREMIUM-B 2 No
Today's Tennis Court Bookings (BCNF and the weaker 3NF, which is implied by BCNF)
Member Flag Court Start Time End Time
----------- ----- ---------- --------
Yes 1 09:30 10:30
Yes 1 11:00 12:00
No 1 14:00 15:30
No 2 10:00 11:30
No 2 11:30 13:30
Yes 2 15:00 16:30
Problem Solved: Now if we upgrade the court we can guarantee the rate type will reflect this change, and we cannot charge the wrong price for a court.
(In technical terms, we can guarantee that the functional dependency "Rate Type" -> "Court" will not be violated.)
Try to look into previous error message happened before current error i.e., "CFBundleIdentifier”, Does Not Exist
.
Fix previous error then this error should disappear.
I fixed previous duplicate symbols for architecture
error when run react-native run-ios --simulator="iPad Pro (9.7-inch)
, then the problem gone.
As noted in Chris Dolan's and Wilbert's answers, PS1 slows you down.
Rather than completely disabling (as suggested by Dolan) or using the script offered by Wilbert, I use a "dumb PS1" that is much faster.
It uses (git symbolic-ref -q HEAD || git rev-parse --short HEAD) 2> /dev/null
:
PS1='\033[33m\]\w \n\[\033[32m\]$((git symbolic-ref -q HEAD || git rev-parse -q --short HEAD) 2> /dev/null) \[\033[00m\]# '
On my Cygwin, this is faster than Wilbert's "fast_Git_PS1" answer - 200 ms vs. 400 ms, so it shaves off a bit of your prompt sluggishness.
It isn't as sophisticated as __git_ps1
- for example it doesn't change the prompt when you cd into the .git directory, etc. but for normal everyday use it's good enough and fast.
This was tested on Git 1.7.9 (Cygwin, but it should work on any platform).
The answer from @guya works, unless you have something like a datepicker or timepicker in the popover. To fix that, this is what I have done.
if (typeof $(e.target).data('original-title') === 'undefined' &&
!$(e.target).parents().is('.popover.in')) {
var x = $(this).parents().context;
if(!$(x).hasClass("datepicker") && !$(x).hasClass("ui-timepicker-wrapper")){
$('[data-original-title]').popover('hide');
}
}
Just Right Click on Project
Click on Team
Click Refresh/Cleaup
this will remove all the current lock files created by SVN
hope this will help !!!!
Suppose the dataframe df has 3 columns id1, name1, price1 and you wish to rename them to id2, name2, price2
val list = List("id2", "name2", "price2")
import spark.implicits._
val df2 = df.toDF(list:_*)
df2.columns.foreach(println)
I found this approach useful in many cases.
So many complicated methods... Just find all "Titled" group and join its lower cased variant with underscore.
>>> import re
>>> def camel_to_snake(string):
... groups = re.findall('([A-z0-9][a-z]*)', string)
... return '_'.join([i.lower() for i in groups])
...
>>> camel_to_snake('ABCPingPongByTheWay2KWhereIsOurBorderlands3???')
'a_b_c_ping_pong_by_the_way_2_k_where_is_our_borderlands_3'
If you don't want make numbers like first character of group or separate group - you can use ([A-z][a-z0-9]*)
mask.
Just go to the column whenadded and change the default value to CURRENT_TIMESTAMP
While building a heap, lets say you're taking a bottom up approach.