Just complementing, I implemented this way and usually worked in my Service class
In my Service
@Override
public void onCreate()
{
mHandler = new Handler(Looper.getMainLooper());
mHandler.post(this);
super.onCreate();
}
@Override
public void onDestroy()
{
mHandler.removeCallbacks(this);
super.onDestroy();
}
@Override
public void run()
{
InciarGPSTracker();
}
I agree with Shivam's answer except for textract doesn't exist for windows. And, for some reason antiword also fails to read the '.doc' files and gives an error:
'filename.doc' is not a word document. # This happens when the file wasn't generated via MS Office. Eg: Web-pages may be stored in .doc format offline.
So, I've got the following workaround to extract the text:
from bs4 import BeautifulSoup as bs
soup = bs(open(filename).read())
[s.extract() for s in soup(['style', 'script'])]
tmpText = soup.get_text()
text = "".join("".join(tmpText.split('\t')).split('\n')).encode('utf-8').strip()
print text
This script will work with most kinds of files. Have fun!
As @Raf Z commented on this question, dplyr now has mutate_if. Super useful, simple and readable.
> str(df)
'data.frame': 5 obs. of 5 variables:
$ A: Factor w/ 5 levels "A","B","C","D",..: 1 2 3 4 5
$ B: int 1 2 3 4 5
$ C: logi TRUE TRUE FALSE FALSE TRUE
$ D: chr "a" "b" "c" "d" ...
$ E: chr "A a" "B b" "C c" "D d" ...
> df <- df %>% mutate_if(is.character,as.factor)
> str(df)
'data.frame': 5 obs. of 5 variables:
$ A: Factor w/ 5 levels "A","B","C","D",..: 1 2 3 4 5
$ B: int 1 2 3 4 5
$ C: logi TRUE TRUE FALSE FALSE TRUE
$ D: Factor w/ 5 levels "a","b","c","d",..: 1 2 3 4 5
$ E: Factor w/ 5 levels "A a","B b","C c",..: 1 2 3 4 5
Strongly typed enums aiming to solve multiple problems and not only scoping problem as you mentioned in your question:
Thus, it is impossible to implicitly convert a strongly typed enum to integers, or even its underlying type - that's the idea. So you have to use static_cast
to make conversion explicit.
If your only problem is scoping and you really want to have implicit promotion to integers, then you better off using not strongly typed enum with the scope of the structure it is declared in.
To include the direction along with the orderBy function:
ng-repeat="card in cards | orderBy:myOrderbyFunction():defaultSortDirection"
where
defaultSortDirection = 0; // 0 = Ascending, 1 = Descending
Note: Using Android Support Library v22.1.0 and targeting API level 11 and up? Scroll down to the last update.
My application style is set to Theme.Holo which is dark and I would like the check boxes on my list view to be of style Theme.Holo.Light. I am not trying to create a custom style. The code below doesn't seem to work, nothing happens at all.
At first it may not be apparent why the system exhibits this behaviour, but when you actually look into the mechanics you can easily deduce it. Let me take you through it step by step.
First, let's take a look what the Widget.Holo.Light.CompoundButton.CheckBox
style defines. To make things more clear, I've also added the 'regular' (non-light) style definition.
<style name="Widget.Holo.Light.CompoundButton.CheckBox" parent="Widget.CompoundButton.CheckBox" />
<style name="Widget.Holo.CompoundButton.CheckBox" parent="Widget.CompoundButton.CheckBox" />
As you can see, both are empty declarations that simply wrap Widget.CompoundButton.CheckBox
in a different name. So let's look at that parent style.
<style name="Widget.CompoundButton.CheckBox">
<item name="android:background">@android:drawable/btn_check_label_background</item>
<item name="android:button">?android:attr/listChoiceIndicatorMultiple</item>
</style>
This style references both a background and button drawable. btn_check_label_background
is simply a 9-patch and hence not very interesting with respect to this matter. However, ?android:attr/listChoiceIndicatorMultiple
indicates that some attribute based on the current theme (this is important to realise) will determine the actual look of the CheckBox
.
As listChoiceIndicatorMultiple
is a theme attribute, you will find multiple declarations for it - one for each theme (or none if it gets inherited from a parent theme). This will look as follows (with other attributes omitted for clarity):
<style name="Theme">
<item name="listChoiceIndicatorMultiple">@android:drawable/btn_check</item>
...
</style>
<style name="Theme.Holo">
<item name="listChoiceIndicatorMultiple">@android:drawable/btn_check_holo_dark</item>
...
</style>
<style name="Theme.Holo.Light" parent="Theme.Light">
<item name="listChoiceIndicatorMultiple">@android:drawable/btn_check_holo_light</item>
...
</style>
So this where the real magic happens: based on the theme's listChoiceIndicatorMultiple
attribute, the actual appearance of the CheckBox
is determined. The phenomenon you're seeing is now easily explained: since the appearance is theme-based (and not style-based, because that is merely an empty definition) and you're inheriting from Theme.Holo
, you will always get the CheckBox
appearance matching the theme.
Now, if you want to change your CheckBox
's appearance to the Holo.Light version, you will need to take a copy of those resources, add them to your local assets and use a custom style to apply them.
As for your second question:
Also can you set styles to individual widgets if you set a style to the application?
Absolutely, and they will override any activity- or application-set styles.
Is there any way to set a theme(style with images) to the checkbox widget. (...) Is there anyway to use this selector: link?
Update:
Let me start with saying again that you're not supposed to rely on Android's internal resources. There's a reason you can't just access the internal namespace as you please.
However, a way to access system resources after all is by doing an id lookup by name. Consider the following code snippet:
int id = Resources.getSystem().getIdentifier("btn_check_holo_light", "drawable", "android");
((CheckBox) findViewById(R.id.checkbox)).setButtonDrawable(id);
The first line will actually return the resource id of the btn_check_holo_light
drawable resource. Since we established earlier that this is the button selector that determines the look of the CheckBox
, we can set it as 'button drawable' on the widget. The result is a CheckBox
with the appearance of the Holo.Light
version, no matter what theme/style you set on the application, activity or widget in xml. Since this sets only the button drawable, you will need to manually change other styling; e.g. with respect to the text appearance.
Below a screenshot showing the result. The top checkbox uses the method described above (I manually set the text colour to black in xml), while the second uses the default theme-based Holo
styling (non-light, that is).
Update2:
With the introduction of Support Library v22.1.0, things have just gotten a lot easier! A quote from the release notes (my emphasis):
Lollipop added the ability to overwrite the theme at a view by view level by using the
android:theme
XML attribute - incredibly useful for things such as dark action bars on light activities. Now, AppCompat allows you to useandroid:theme
for Toolbars (deprecating theapp:theme
used previously) and, even better, bringsandroid:theme
support to all views on API 11+ devices.
In other words: you can now apply a theme on a per-view basis, which makes solving the original problem a lot easier: just specify the theme you'd like to apply for the relevant view. I.e. in the context of the original question, compare the results of below:
<CheckBox
...
android:theme="@android:style/Theme.Holo" />
<CheckBox
...
android:theme="@android:style/Theme.Holo.Light" />
The first CheckBox
is styled as if used in a dark theme, the second as if in a light theme, regardless of the actual theme set to your activity or application.
Of course you should no longer be using the Holo theme, but instead use Material.
I also like to use NOT EXISTS. When it comes to performance if index correctly it should perform the same as a LEFT JOIN or better. Plus its easier to read.
SELECT Column1
FROM TableA a
WHERE NOT EXISTS ( SELECT Column1
FROM Tableb b
WHERE a.Column1 = b.Column1
)
Well pandas use bitwise &
|
and each condition should be wrapped in a ()
For example following works
data_query = data[(data['year'] >= 2005) & (data['year'] <= 2010)]
But the same query without proper brackets does not
data_query = data[(data['year'] >= 2005 & data['year'] <= 2010)]
It's actually fairly easy, just enter it as a latitude,longitude pair, ie 46.38S,115.36E (which is in the middle of the ocean). You'll want to convert it to decimal though (divide the minutes portion by 60 and add it to the degrees [I've done that with your example]).
DateTime.ToString("dd/MM/yyyy") may give the date in dd-MM-yyyy format. This depends on your short date format. If short date format is not as per format, we have to replace character '-' with '/' as below:
date = DateTime.Now.ToString("dd/MM/yyyy").Replace('-','/');
Depends on what your number represents and how you want to manage the values: is it a currency, do you need rounding or truncation, do you need this rounding only for display?
If for display consider formatting the numbers are x.ToString("")
http://msdn.microsoft.com/en-us/library/dwhawy9k.aspx and
http://msdn.microsoft.com/en-us/library/0c899ak8.aspx
If it is just rounding, use Math.Round overload that requires a MidPointRounding overload
http://msdn.microsoft.com/en-us/library/ms131274.aspx)
If you get your value from a database consider casting instead of conversion: double value = (decimal)myRecord["columnName"];
If It is simple Session you can apply NULL
Check directly Session["emp_num"] != null
But if it's a session of a list Item then You need to apply any one of the following option
Option 1:
if (((List<int>)(Session["emp_num"])) != null && (List<int>)Session["emp_num"])).Count > 0)
{
//Your Logic here
}
Option 2:
List<int> val= Session["emp_num"] as List<int>; //Get the value from Session.
if (val.FirstOrDefault() != null)
{
//Your Logic here
}
It is recommended to use either the MySQLi or PDO extensions. It is not recommended to use the old mysql extension for new development, as it was deprecated in PHP 5.5.0 and was removed in PHP 7.
PHP offers three different APIs to connect to MySQL. Below we show the APIs provided by the mysql, mysqli, and PDO extensions. Each code snippet creates a connection to a MySQL server running on "example.com" using the username "username" and the password "password". And a query is run to greet the user.
Example #1 Comparing the three MySQL APIs
<?php
// mysqli
$mysqli = new mysqli("example.com", "username", "password", "database");
$result = $mysqli->query("SELECT 'Hello, dear MySQL user!' AS _message FROM DUAL");
$row = $result->fetch_assoc();
echo htmlentities($row['_message']);
// PDO
$pdo = new PDO('mysql:host=example.com;dbname=database', 'username', 'password');
$statement = $pdo->query("SELECT 'Hello, dear MySQL user!' AS _message FROM DUAL");
$row = $statement->fetch(PDO::FETCH_ASSOC);
echo htmlentities($row['_message']);
// mysql
$c = mysql_connect("example.com", "username", "password");
mysql_select_db("database");
$result = mysql_query("SELECT 'Hello, dear MySQL user!' AS _message FROM DUAL");
$row = mysql_fetch_assoc($result);
echo htmlentities($row['_message']);
?>
I suggest you try out both MySQLi and PDO and find out what API design you prefer.
Read Choosing an API and Why shouldn't I use mysql_* functions in PHP?
As I was redirected here searching for a method to find digits in string in Kotlin
language, I'll leave my findings here for other folks wanting a solution specific to Kotlin.
Finding out if a string contains digit:
val hasDigits = sampleString.any { it.isDigit() }
Finding out if a string contains only digits:
val hasOnlyDigits = sampleString.all { it.isDigit() }
Extract digits from string:
val onlyNumberString = sampleString.filter { it.isDigit() }
Here is a work around. You can use filter instead of find; but filter returns an array of matching objects. find
only returns the first match inside an array. So, why not use filter as following;
data.filter(function (x) {
return x.Id === e
})[0];
422 Unprocessable Entity Explained Updated: March 6, 2017
What Is 422 Unprocessable Entity?
A 422 status code occurs when a request is well-formed, however, due to semantic errors it is unable to be processed. This HTTP status was introduced in RFC 4918 and is more specifically geared toward HTTP extensions for Web Distributed Authoring and Versioning (WebDAV).
There is some controversy out there on whether or not developers should return a 400 vs 422 error to clients (more on the differences between both statuses below). However, in most cases, it is agreed upon that the 422 status should only be returned if you support WebDAV capabilities.
A word-for-word definition of the 422 status code taken from section 11.2 in RFC 4918 can be read below.
The 422 (Unprocessable Entity) status code means the server understands the content type of the request entity (hence a 415(Unsupported Media Type) status code is inappropriate), and the syntax of the request entity is correct (thus a 400 (Bad Request) status code is inappropriate) but was unable to process the contained instructions.
The definition goes on to say:
For example, this error condition may occur if an XML request body contains well-formed (i.e., syntactically correct), but semantically erroneous, XML instructions.
400 vs 422 Status Codes
Bad request errors make use of the 400 status code and should be returned to the client if the request syntax is malformed, contains invalid request message framing, or has deceptive request routing. This status code may seem pretty similar to the 422 unprocessable entity status, however, one small piece of information that distinguishes them is the fact that the syntax of a request entity for a 422 error is correct whereas the syntax of a request that generates a 400 error is incorrect.
The use of the 422 status should be reserved only for very particular use-cases. In most other cases where a client error has occurred due to malformed syntax, the 400 Bad Request status should be used.
You can try converting your image from tiff to PNG, here is how to do it:
import com.sun.media.jai.codec.ImageCodec;
import com.sun.media.jai.codec.ImageDecoder;
import com.sun.media.jai.codec.ImageEncoder;
import com.sun.media.jai.codec.PNGEncodeParam;
import com.sun.media.jai.codec.TIFFDecodeParam;
import java.awt.image.RenderedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import javaxt.io.Image;
public class ImgConvTiffToPng {
public static byte[] convert(byte[] tiff) throws Exception {
byte[] out = new byte[0];
InputStream inputStream = new ByteArrayInputStream(tiff);
TIFFDecodeParam param = null;
ImageDecoder dec = ImageCodec.createImageDecoder("tiff", inputStream, param);
RenderedImage op = dec.decodeAsRenderedImage(0);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
PNGEncodeParam jpgparam = null;
ImageEncoder en = ImageCodec.createImageEncoder("png", outputStream, jpgparam);
en.encode(op);
outputStream = (ByteArrayOutputStream) en.getOutputStream();
out = outputStream.toByteArray();
outputStream.flush();
outputStream.close();
return out;
}
From the release news of ggplot 2.2.0
: "The main plot title is now left-aligned to better work better with a subtitle". See also the plot.title
argument in ?theme
: "left-aligned by default".
As pointed out by @J_F, you may add theme(plot.title = element_text(hjust = 0.5))
to center the title.
ggplot() +
ggtitle("Default in 2.2.0 is left-aligned")
ggplot() +
ggtitle("Use theme(plot.title = element_text(hjust = 0.5)) to center") +
theme(plot.title = element_text(hjust = 0.5))
I ran into this before, as others said: just upgrade jetty plugin
if you are using maven
go to jetty
plugin in pom.xml and update it to
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>9.3.0.v20150612</version>
<configuration>
<scanIntervalSeconds>3</scanIntervalSeconds>
<httpConnector>
<port>${jetty.port}</port>
<idleTimeout>60000</idleTimeout>
</httpConnector>
<stopKey>foo</stopKey>
<stopPort>${jetty.stop.port}</stopPort>
</configuration>
</plugin>
hope this help you
By specifying the column as VARCHAR(500)
you've set an explicit 500 character limit. You might not have done this yourself explicitly, but Django has done it for you somewhere. Telling you where is hard when you haven't shown your model, the full error text, or the query that produced the error.
If you don't want one, use an unqualified VARCHAR
, or use the TEXT
type.
varchar
and text
are limited in length only by the system limits on column size - about 1GB - and by your memory. However, adding a length-qualifier to varchar
sets a smaller limit manually. All of the following are largely equivalent:
column_name VARCHAR(500)
column_name VARCHAR CHECK (length(column_name) <= 500)
column_name TEXT CHECK (length(column_name) <= 500)
The only differences are in how database metadata is reported and which SQLSTATE is raised when the constraint is violated.
The length constraint is not generally obeyed in prepared statement parameters, function calls, etc, as shown:
regress=> \x
Expanded display is on.
regress=> PREPARE t2(varchar(500)) AS SELECT $1;
PREPARE
regress=> EXECUTE t2( repeat('x',601) );
-[ RECORD 1 ]-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
?column? | xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
and in explicit casts it result in truncation:
regress=> SELECT repeat('x',501)::varchar(1);
-[ RECORD 1 ]
repeat | x
so I think you are using a VARCHAR(500)
column, and you're looking at the wrong table or wrong instance of the database.
If there are multiple elements in DOM with same class name. But only one of element is visible.
element.all(by.css('.text-input-input')).filter(function(ele){
return ele.isDisplayed();
}).then(function(filteredElement){
filteredElement[0].click();
});
In this example filter takes a collection of elements and returns a single visible element using isDisplayed().
What you're trying to accomplish is called Reverse DNS lookup.
socket.gethostbyaddr("IP")
# => (hostname, alias-list, IP)
http://docs.python.org/library/socket.html?highlight=gethostbyaddr#socket.gethostbyaddr
However, for the timeout part I have read about people running into problems with this. I would check out PyDNS or this solution for more advanced treatment.
Since Symfony 3.3 you can use binding, like
services:
_defaults:
autowire: true
autoconfigure: true
bind:
$kernelProjectDir: '%kernel.project_dir%'
After that you can use parameter $kernelProjectDir in any controller OR service. Just like
class SomeControllerOrService
{
public function someAction(...., $kernelProjectDir)
{
.....
$(document).ready(function() {_x000D_
$('#InventoryMasterError').click(function(event) { //on click_x000D_
if (this.checked) { // check select status_x000D_
$('.checkerror').each(function() { //loop through each checkbox_x000D_
$('#selecctall').attr('disabled', 'disabled');_x000D_
});_x000D_
} else {_x000D_
$('.checkerror').each(function() { //loop through each checkbox_x000D_
$('#selecctall').removeAttr('disabled', 'disabled');_x000D_
});_x000D_
}_x000D_
});_x000D_
_x000D_
});_x000D_
_x000D_
$(document).ready(function() {_x000D_
$('#selecctall').click(function(event) { //on click_x000D_
if (this.checked) { // check select status_x000D_
$('.checkbox1').each(function() { //loop through each checkbox_x000D_
$('#InventoryMasterError').attr('disabled', 'disabled');_x000D_
});_x000D_
_x000D_
} else {_x000D_
$('.checkbox1').each(function() { //loop through each checkbox_x000D_
$('#InventoryMasterError').removeAttr('disabled', 'disabled');_x000D_
});_x000D_
}_x000D_
});_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<input type="checkbox" id="selecctall" name="selecctall" value="All" />_x000D_
<input type="checkbox" name="data[InventoryMaster][error]" label="" value="error" id="InventoryMasterError" />_x000D_
<input type="checkbox" name="checkid[]" class="checkbox1" value="1" id="InventoryMasterId" />_x000D_
<input type="checkbox" name="checkid[]" class="checkbox1" value="2" id="InventoryMasterId" />
_x000D_
There are few properties to set to make a Hive table support ACID properties and to insert the values into tables as like in SQL .
Conditions to create a ACID table in Hive.
Properties to set to create ACID table:
set hive.support.concurrency =true;
set hive.enforce.bucketing =true;
set hive.exec.dynamic.partition.mode =nonstrict
set hive.compactor.initiator.on = true;
set hive.compactor.worker.threads= 1;
set hive.txn.manager = org.apache.hadoop.hive.ql.lockmgr.DbTxnManager;
set the property hive.in.test to true in hive.site.xml
After setting all these properties , the table should be created with tblproperty 'transactional' ='true'. The table should be bucketed and saved as orc
CREATE TABLE table_name (col1 int,col2 string, col3 int) CLUSTERED BY col1 INTO 4
BUCKETS STORED AS orc tblproperties('transactional' ='true');
Now its possible to inserte values into the table like SQL query.
INSERT INTO TABLE table_name VALUES (1,'a',100),(2,'b',200),(3,'c',300);
It is standard matplotlib.pyplot:
...
import matplotlib.pyplot as plt
plt.ylim(10, 40)
Or simpler, as mwaskom comments below:
ax.set(ylim=(10, 40))
I had the same error. In my case it was because I have stored the encrypted data in a SQL Database. The table the data is stored in, has a binary(1000) data type. When retreiving the data from the database, it would decrypt these 1000 bytes, while there where actually 400 bytes. So removing the trailing zero's (600) from the result it fixed the problem.
I also like to define my own functions that take and return arguments in degrees rather than radians. I am sure there some capitalization purest who don't like my names, but I just use a capital first letter for my custom functions. The definitions and testing code are below.
#Definitions for trig functions using degrees.
def Cos(a):
return cos(radians(a))
def Sin(a):
return sin(radians(a))
def Tan(a):
return tan(radians(a))
def ArcTan(a):
return degrees(arctan(a))
def ArcSin(a):
return degrees(arcsin(a))
def ArcCos(a):
return degrees(arccos(a))
#Testing Code
print(Cos(90))
print(Sin(90))
print(Tan(45))
print(ArcTan(1))
print(ArcSin(1))
print(ArcCos(0))
Note that I have imported math (or numpy) into the namespace with
from math import *
Also note, that my functions are in the namespace in which they were defined. For instance,
math.Cos(45)
does not exist.
Use empty
- http://php.net/manual/en/function.empty.php.
Example:
$a = '';
if(empty($a)) {
echo 'is empty';
}
Given some table, you can find which rows are not locked with SELECT FOR UPDATE
SKIP LOCKED
.
For example, this query will lock (and return) every unlocked row:
SELECT * FROM mytable FOR UPDATE SKIP LOCKED
References
In my Notepad++ 7.2.2
, the Preferences
section it's a bit different.
The option is located at: Settings
/ Preferences
/ Language
/ Replace by space
as in the Screenshot.
vim's DirDiff plugin is another very useful tool for comparing directories.
vim -c "DirDiff dir1 dir2"
It not only lists which files are different between the directories, but also allows you to inspect/modify with vimdiff the files that are different.
In HTML ids should be unique. I suggest you change your code to something like this:
<div id="div1" >
<input type="text" name="edit1" id="edit1" />
<input type="text" name="edit2" id="edit2" />
</div>
<div id="div2" >
<input type="text" name="edit1" id="edit3" />
<input type="text" name="edit2" id="edit4" />
</div>
You could use iterator to do that:
For keys:
for (Iterator <tab> itr= hash.keySet().iterator(); itr.hasNext();) {
// use itr.next() to get the key value
}
You can use iterator similarly with values.
You can change your approach slightly - use Console.ReadKey()
to stop your app, but do your work in a background thread:
static void Main(string[] args)
{
var myWorker = new MyWorker();
myWorker.DoStuff();
Console.WriteLine("Press any key to stop...");
Console.ReadKey();
}
In the myWorker.DoStuff()
function you would then invoke another function on a background thread (using Action<>()
or Func<>()
is an easy way to do it), then immediately return.
I am using this:
loading = ProgressDialog.show(example.this,"",null, true, true);
scanf()
statement needs to use %lld
too.There are far too many parentheses and far too few spaces in the expression
pi += pow(-1.0, e) / (2.0*e + 1.0);
int
for main()
.int main(void)
when it ignores its arguments, though that is less of a categorical statement than the rest.main()
and don't use it myself; I write return 0;
to be explicit.I think the whole algorithm is dubious when written using long long
; the data type probably should be more like long double
(with %Lf
for the scanf()
format, and maybe %19.16Lf
for the printf()
formats.
You can use the following CTE as well. You can just modify it as you find fit. But this will add the same values into the student CTE.
This will add 1000 records but you can change it to 10000 or to a maximum of 32767
;WITH thetable(rowid,sname,semail,spassword) AS
(
SELECT 1 , 'name' , 'email' , 'password'
UNION ALL
SELECT rowid+1 ,'name' , 'email' , 'password'
FROM thetable WHERE rowid < 1000
)
SELECT rowid,sname,semail,spassword
FROM thetable ORDER BY rowid
OPTION (MAXRECURSION 1000);
Use the map
method:
var a = [1, 2, 3]_x000D_
var b = ['a', 'b', 'c']_x000D_
_x000D_
var c = a.map(function(e, i) {_x000D_
return [e, b[i]];_x000D_
});_x000D_
_x000D_
console.log(c)
_x000D_
In Managed C++, static class syntax is:-
public ref class BitParser abstract sealed
{
public:
static bool GetBitAt(...)
{
...
}
}
... better late than never...
I can't believe any of the many answers gives what I'd consider the "one obvious way to do it" (and I'm not even Dutch...!-) -- up to just below 24 hours' worth of seconds (86399 seconds, specifically):
>>> import time
>>> time.strftime('%H:%M:%S', time.gmtime(12345))
'03:25:45'
Doing it in a Django template's more finicky, since the time
filter supports a funky time-formatting syntax (inspired, I believe, from PHP), and also needs the datetime module, and a timezone implementation such as pytz, to prep the data. For example:
>>> from django import template as tt
>>> import pytz
>>> import datetime
>>> tt.Template('{{ x|time:"H:i:s" }}').render(
... tt.Context({'x': datetime.datetime.fromtimestamp(12345, pytz.utc)}))
u'03:25:45'
Depending on your exact needs, it might be more convenient to define a custom filter for this formatting task in your app.
As of OpenCV3.2, life just got a bit easier, you can now rotate an image in a single line of code:
cv::rotate(image, image, cv::ROTATE_90_CLOCKWISE);
For the direction you can choose any of the following:
ROTATE_90_CLOCKWISE
ROTATE_180
ROTATE_90_COUNTERCLOCKWISE
Here's a no framework code, only pure js :
document.querySelectorAll('img.svg').forEach(function(element) {
var imgID = element.getAttribute('id')
var imgClass = element.getAttribute('class')
var imgURL = element.getAttribute('src')
xhr = new XMLHttpRequest()
xhr.onreadystatechange = function() {
if(xhr.readyState == 4 && xhr.status == 200) {
var svg = xhr.responseXML.getElementsByTagName('svg')[0];
if(imgID != null) {
svg.setAttribute('id', imgID);
}
if(imgClass != null) {
svg.setAttribute('class', imgClass + ' replaced-svg');
}
svg.removeAttribute('xmlns:a')
if(!svg.hasAttribute('viewBox') && svg.hasAttribute('height') && svg.hasAttribute('width')) {
svg.setAttribute('viewBox', '0 0 ' + svg.getAttribute('height') + ' ' + svg.getAttribute('width'))
}
element.parentElement.replaceChild(svg, element)
}
}
xhr.open('GET', imgURL, true)
xhr.send(null)
})
As per John Fouhy's answer, don't optimize unless you have to, but if you're here and asking this question, it may be precisely because you have to. In my case, I needed assemble some URLs from string variables... fast. I noticed no one (so far) seems to be considering the string format method, so I thought I'd try that and, mostly for mild interest, I thought I'd toss the string interpolation operator in there for good measuer. To be honest, I didn't think either of these would stack up to a direct '+' operation or a ''.join(). But guess what? On my Python 2.7.5 system, the string interpolation operator rules them all and string.format() is the worst performer:
# concatenate_test.py
from __future__ import print_function
import timeit
domain = 'some_really_long_example.com'
lang = 'en'
path = 'some/really/long/path/'
iterations = 1000000
def meth_plus():
'''Using + operator'''
return 'http://' + domain + '/' + lang + '/' + path
def meth_join():
'''Using ''.join()'''
return ''.join(['http://', domain, '/', lang, '/', path])
def meth_form():
'''Using string.format'''
return 'http://{0}/{1}/{2}'.format(domain, lang, path)
def meth_intp():
'''Using string interpolation'''
return 'http://%s/%s/%s' % (domain, lang, path)
plus = timeit.Timer(stmt="meth_plus()", setup="from __main__ import meth_plus")
join = timeit.Timer(stmt="meth_join()", setup="from __main__ import meth_join")
form = timeit.Timer(stmt="meth_form()", setup="from __main__ import meth_form")
intp = timeit.Timer(stmt="meth_intp()", setup="from __main__ import meth_intp")
plus.val = plus.timeit(iterations)
join.val = join.timeit(iterations)
form.val = form.timeit(iterations)
intp.val = intp.timeit(iterations)
min_val = min([plus.val, join.val, form.val, intp.val])
print('plus %0.12f (%0.2f%% as fast)' % (plus.val, (100 * min_val / plus.val), ))
print('join %0.12f (%0.2f%% as fast)' % (join.val, (100 * min_val / join.val), ))
print('form %0.12f (%0.2f%% as fast)' % (form.val, (100 * min_val / form.val), ))
print('intp %0.12f (%0.2f%% as fast)' % (intp.val, (100 * min_val / intp.val), ))
The results:
# python2.7 concatenate_test.py
plus 0.360787868500 (90.81% as fast)
join 0.452811956406 (72.36% as fast)
form 0.502608060837 (65.19% as fast)
intp 0.327636957169 (100.00% as fast)
If I use a shorter domain and shorter path, interpolation still wins out. The difference is more pronounced, though, with longer strings.
Now that I had a nice test script, I also tested under Python 2.6, 3.3 and 3.4, here's the results. In Python 2.6, the plus operator is the fastest! On Python 3, join wins out. Note: these tests are very repeatable on my system. So, 'plus' is always faster on 2.6, 'intp' is always faster on 2.7 and 'join' is always faster on Python 3.x.
# python2.6 concatenate_test.py
plus 0.338213920593 (100.00% as fast)
join 0.427221059799 (79.17% as fast)
form 0.515371084213 (65.63% as fast)
intp 0.378169059753 (89.43% as fast)
# python3.3 concatenate_test.py
plus 0.409130576998 (89.20% as fast)
join 0.364938726001 (100.00% as fast)
form 0.621366866995 (58.73% as fast)
intp 0.419064424001 (87.08% as fast)
# python3.4 concatenate_test.py
plus 0.481188605998 (85.14% as fast)
join 0.409673971997 (100.00% as fast)
form 0.652010936996 (62.83% as fast)
intp 0.460400978001 (88.98% as fast)
# python3.5 concatenate_test.py
plus 0.417167026084 (93.47% as fast)
join 0.389929617057 (100.00% as fast)
form 0.595661019906 (65.46% as fast)
intp 0.404455224983 (96.41% as fast)
Lesson learned:
tl;dr:
So to start with some kind of answer : ) - You can't
I am not an expert, but as far as I understand DataFrames, they are not equal to rdd and DataFrame has no such thing as Partitioner.
Generally DataFrame's idea is to provide another level of abstraction that handles such problems itself. The queries on DataFrame are translated into logical plan that is further translated to operations on RDDs. The partitioning you suggested will probably be applied automatically or at least should be.
If you don't trust SparkSQL that it will provide some kind of optimal job, you can always transform DataFrame to RDD[Row] as suggested in of the comments.
The exact answer depends on the context. In general, these characters must not be present (HTML 5.2 §3.2.4.2.5):
Text nodes and attribute values must consist of Unicode characters, must not contain U+0000 characters, must not contain permanently undefined Unicode characters (noncharacters), and must not contain control characters other than space characters. This specification includes extra constraints on the exact value of Text nodes and attribute values depending on their precise context.
For elements in HTML, the constraints of the Text content model also depends on the kind of element. For instance, an "<" inside a textarea element does not need to be escaped in HTML because textarea is an escapable raw text element.
These restrictions are scattered across the specification. E.g., attribute values (§8.1.2.3) must not contain an ambiguous ampersand and be either (i) empty, (ii) within single quotes (and thus must not contain U+0027 APOSTROPHE character '
), (iii) within double quotes (must not contain U+0022 QUOTATION MARK character "
), or (iv) unquoted — with the following restrictions:
... must not contain any literal space characters, any U+0022 QUOTATION MARK characters ("), U+0027 APOSTROPHE characters ('), U+003D EQUALS SIGN characters (=), U+003C LESS-THAN SIGN characters (<), U+003E GREATER-THAN SIGN characters (>), or U+0060 GRAVE ACCENT characters (`), and must not be the empty string.
First set position
of the parent DIV to relative
(specifying the offset, i.e. left
, top
etc. is not necessary) and then apply position: absolute
to the child DIV with the offset you want.
It's simple and should do the trick well.
I prefer combining DATEADD
and DATEDIFF
functions like this:
GROUP BY DATEADD(MONTH, DATEDIFF(MONTH, 0, Created),0)
Together, these two functions zero-out the date component smaller than the specified datepart (i.e. MONTH
in this example).
You can change the datepart bit to YEAR
, WEEK
, DAY
, etc... which is super handy.
Your original SQL query would then look something like this (I can't test it as I don't have your data set, but it should put you on the right track).
DECLARE @start [datetime] = '2010-04-01';
SELECT
ItemID,
UserID,
DATEADD(MONTH, DATEDIFF(MONTH, 0, Created),0) [Month],
IsPaid,
SUM(Amount)
FROM LIVE L
INNER JOIN Payments I ON I.LiveID = L.RECORD_KEY
WHERE UserID = 16178
AND PaymentDate > @start
One more thing: the Month
column is typed as a DateTime
which is also a nice advantage if you need to further process that data or map it .NET object for example.
It is possible to use patterns in a .gitignore
file. See the gitignore man page. The pattern */target/*
should ignore any directory named target and anything under it. Or you may try */target/**
to ignore everything under target.
The iBeacon output power is measured (calibrated) at a distance of 1 meter. Let's suppose that this is -59 dBm (just an example). The iBeacon will include this number as part of its LE advertisment.
The listening device (iPhone, etc), will measure the RSSI of the device. Let's suppose, for example, that this is, say, -72 dBm.
Since these numbers are in dBm, the ratio of the power is actually the difference in dB. So:
ratio_dB = txCalibratedPower - RSSI
To convert that into a linear ratio, we use the standard formula for dB:
ratio_linear = 10 ^ (ratio_dB / 10)
If we assume conservation of energy, then the signal strength must fall off as 1/r^2. So:
power = power_at_1_meter / r^2
. Solving for r, we get:
r = sqrt(ratio_linear)
In Javascript, the code would look like this:
function getRange(txCalibratedPower, rssi) {
var ratio_db = txCalibratedPower - rssi;
var ratio_linear = Math.pow(10, ratio_db / 10);
var r = Math.sqrt(ratio_linear);
return r;
}
Note, that, if you're inside a steel building, then perhaps there will be internal reflections that make the signal decay slower than 1/r^2. If the signal passes through a human body (water) then the signal will be attenuated. It's very likely that the antenna doesn't have equal gain in all directions. Metal objects in the room may create strange interference patterns. Etc, etc... YMMV.
git rm --cached
will remove it from the commit set ("un-adding" it); that sounds like what you want.
There is one important difference:
Margin- is on the outside of the element i.e. one will apply the whitespace shift "after" the element begins. Padding- is on the inside, the other will apply the whitespace "before" the element begins.
Here is an elegant method using quaternions that are blazingly fast; I can calculate 10 million rotations per second with appropriately vectorised numpy arrays. It relies on the quaternion extension to numpy found here.
Quaternion Theory:
A quaternion is a number with one real and 3 imaginary dimensions usually written as q = w + xi + yj + zk
where 'i', 'j', 'k' are imaginary dimensions. Just as a unit complex number 'c' can represent all 2d rotations by c=exp(i * theta)
, a unit quaternion 'q' can represent all 3d rotations by q=exp(p)
, where 'p' is a pure imaginary quaternion set by your axis and angle.
We start by converting your axis and angle to a quaternion whose imaginary dimensions are given by your axis of rotation, and whose magnitude is given by half the angle of rotation in radians. The 4 element vectors (w, x, y, z)
are constructed as follows:
import numpy as np
import quaternion as quat
v = [3,5,0]
axis = [4,4,1]
theta = 1.2 #radian
vector = np.array([0.] + v)
rot_axis = np.array([0.] + axis)
axis_angle = (theta*0.5) * rot_axis/np.linalg.norm(rot_axis)
First, a numpy array of 4 elements is constructed with the real component w=0 for both the vector to be rotated vector
and the rotation axis rot_axis
. The axis angle representation is then constructed by normalizing then multiplying by half the desired angle theta
. See here for why half the angle is required.
Now create the quaternions v
and qlog
using the library, and get the unit rotation quaternion q
by taking the exponential.
vec = quat.quaternion(*v)
qlog = quat.quaternion(*axis_angle)
q = np.exp(qlog)
Finally, the rotation of the vector is calculated by the following operation.
v_prime = q * vec * np.conjugate(q)
print(v_prime) # quaternion(0.0, 2.7491163, 4.7718093, 1.9162971)
Now just discard the real element and you have your rotated vector!
v_prime_vec = v_prime.imag # [2.74911638 4.77180932 1.91629719] as a numpy array
Note that this method is particularly efficient if you have to rotate a vector through many sequential rotations, as the quaternion product can just be calculated as q = q1 * q2 * q3 * q4 * ... * qn and then the vector is only rotated by 'q' at the very end using v' = q * v * conj(q).
This method gives you a seamless transformation between axis angle <---> 3d rotation operator simply by exp
and log
functions (yes log(q)
just returns the axis-angle representation!). For further clarification of how quaternion multiplication etc. work, see here
This will work
$(".nav-tabs a").click(function(){
$(this).tab('show');
});
I have faced similar problem. I have done
Legacy Build Settings
- didn't worktypedef NS_ENUM
in .h file and enums related works. Build the system and build success shown. Next un-comment the code and build again - Magically worksYou should use querySelectorAll
. It returns NodeList, however querySelector
returns only the first found element:
var deleteLink = document.querySelectorAll('.delete');
Then you would loop:
for (var i = 0; i < deleteLink.length; i++) {
deleteLink[i].addEventListener('click', function(event) {
if (!confirm("sure u want to delete " + this.title)) {
event.preventDefault();
}
});
}
Also you should preventDefault only if confirm === false
.
It's also worth noting that return false/true
is only useful for event handlers bound with onclick = function() {...}
. For addEventListening
you should use event.preventDefault()
.
Demo: http://jsfiddle.net/Rc7jL/3/
ES6 version
You can make it a little cleaner (and safer closure-in-loop wise) by using Array.prototype.forEach iteration instead of for-loop:
var deleteLinks = document.querySelectorAll('.delete');
Array.from(deleteLinks).forEach(link => {
link.addEventListener('click', function(event) {
if (!confirm(`sure u want to delete ${this.title}`)) {
event.preventDefault();
}
});
});
Example above uses Array.from and template strings from ES2015 standard.
You need to install the provisioning profile (drag and drop it into iTunes). Then drag and drop the .ipa. Ensure you device is set to sync apps, and try again.
You'll need to create a new array if you want to add an index.
Try this:
public static void main(String[] args) {
int[] series = new int[0];
int x = 5;
series = addInt(series, x);
//print out the array with commas as delimiters
System.out.print("New series: ");
for (int i = 0; i < series.length; i++){
if (i == series.length - 1){
System.out.println(series[i]);
}
else{
System.out.print(series[i] + ", ");
}
}
}
// here, create a method
public static int[] addInt(int [] series, int newInt){
//create a new array with extra index
int[] newSeries = new int[series.length + 1];
//copy the integers from series to newSeries
for (int i = 0; i < series.length; i++){
newSeries[i] = series[i];
}
//add the new integer to the last index
newSeries[newSeries.length - 1] = newInt;
return newSeries;
}
As has already been stated, you can use:
lemons && document.write("foo gave me a bar");
or
if (lemons) document.write("foo gave me a bar");
If, however, you wish to use the one line if
statement to short-circuit a function though, you'd need to go with the bracket-less version like so:
if (lemons) return "foo gave me a bar";
as
lemons && return "foo gave me a bar"; // does not work!
will give you a SyntaxError: Unexpected keyword 'return'
No special syntax:
CREATE TABLE your_table (some_id int, your_column varchar(100));
INSERT INTO your_table VALUES (1, 'Hello');
UPDATE your_table
SET your_column = NULL
WHERE some_id = 1;
SELECT * FROM your_table WHERE your_column IS NULL;
+---------+-------------+
| some_id | your_column |
+---------+-------------+
| 1 | NULL |
+---------+-------------+
1 row in set (0.00 sec)
You should set a fixed value to your span's line-height
property:
.float, .twoline {
line-height: 100px;
}
It will replace all new line with break
str = str.replace(/\n/g, '<br>')
If you want to replace all new line with single break line
str = str.replace(/\n*\n/g, '<br>')
Read more about Regex : https://dl.icewarp.com/online_help/203030104.htm this will help you everytime.
Use these libraries:
import java.util.LinkedHashMap;
import java.util.Map;
The code:
public static String RomanNumerals(int Int) {
LinkedHashMap<String, Integer> roman_numerals = new LinkedHashMap<String, Integer>();
roman_numerals.put("M", 1000);
roman_numerals.put("CM", 900);
roman_numerals.put("D", 500);
roman_numerals.put("CD", 400);
roman_numerals.put("C", 100);
roman_numerals.put("XC", 90);
roman_numerals.put("L", 50);
roman_numerals.put("XL", 40);
roman_numerals.put("X", 10);
roman_numerals.put("IX", 9);
roman_numerals.put("V", 5);
roman_numerals.put("IV", 4);
roman_numerals.put("I", 1);
String res = "";
for(Map.Entry<String, Integer> entry : roman_numerals.entrySet()){
int matches = Int/entry.getValue();
res += repeat(entry.getKey(), matches);
Int = Int % entry.getValue();
}
return res;
}
public static String repeat(String s, int n) {
if(s == null) {
return null;
}
final StringBuilder sb = new StringBuilder();
for(int i = 0; i < n; i++) {
sb.append(s);
}
return sb.toString();
}
Testing the code:
for (int i = 1;i<256;i++) {
System.out.println("i="+i+" -> "+RomanNumerals(i));
}
The output:
i=1 -> I
i=2 -> II
i=3 -> III
i=4 -> IV
i=5 -> V
i=6 -> VI
i=7 -> VII
i=8 -> VIII
i=9 -> IX
i=10 -> X
i=11 -> XI
i=12 -> XII
i=13 -> XIII
i=14 -> XIV
i=15 -> XV
i=16 -> XVI
i=17 -> XVII
i=18 -> XVIII
i=19 -> XIX
i=20 -> XX
i=21 -> XXI
i=22 -> XXII
i=23 -> XXIII
i=24 -> XXIV
i=25 -> XXV
i=26 -> XXVI
i=27 -> XXVII
i=28 -> XXVIII
i=29 -> XXIX
i=30 -> XXX
i=31 -> XXXI
i=32 -> XXXII
i=33 -> XXXIII
i=34 -> XXXIV
i=35 -> XXXV
i=36 -> XXXVI
i=37 -> XXXVII
i=38 -> XXXVIII
i=39 -> XXXIX
i=40 -> XL
i=41 -> XLI
i=42 -> XLII
i=43 -> XLIII
i=44 -> XLIV
i=45 -> XLV
i=46 -> XLVI
i=47 -> XLVII
i=48 -> XLVIII
i=49 -> XLIX
i=50 -> L
i=51 -> LI
i=52 -> LII
i=53 -> LIII
i=54 -> LIV
i=55 -> LV
i=56 -> LVI
i=57 -> LVII
i=58 -> LVIII
i=59 -> LIX
i=60 -> LX
i=61 -> LXI
i=62 -> LXII
i=63 -> LXIII
i=64 -> LXIV
i=65 -> LXV
i=66 -> LXVI
i=67 -> LXVII
i=68 -> LXVIII
i=69 -> LXIX
i=70 -> LXX
i=71 -> LXXI
i=72 -> LXXII
i=73 -> LXXIII
i=74 -> LXXIV
i=75 -> LXXV
i=76 -> LXXVI
i=77 -> LXXVII
i=78 -> LXXVIII
i=79 -> LXXIX
i=80 -> LXXX
i=81 -> LXXXI
i=82 -> LXXXII
i=83 -> LXXXIII
i=84 -> LXXXIV
i=85 -> LXXXV
i=86 -> LXXXVI
i=87 -> LXXXVII
i=88 -> LXXXVIII
i=89 -> LXXXIX
i=90 -> XC
i=91 -> XCI
i=92 -> XCII
i=93 -> XCIII
i=94 -> XCIV
i=95 -> XCV
i=96 -> XCVI
i=97 -> XCVII
i=98 -> XCVIII
i=99 -> XCIX
i=100 -> C
i=101 -> CI
i=102 -> CII
i=103 -> CIII
i=104 -> CIV
i=105 -> CV
i=106 -> CVI
i=107 -> CVII
i=108 -> CVIII
i=109 -> CIX
i=110 -> CX
i=111 -> CXI
i=112 -> CXII
i=113 -> CXIII
i=114 -> CXIV
i=115 -> CXV
i=116 -> CXVI
i=117 -> CXVII
i=118 -> CXVIII
i=119 -> CXIX
i=120 -> CXX
i=121 -> CXXI
i=122 -> CXXII
i=123 -> CXXIII
i=124 -> CXXIV
i=125 -> CXXV
i=126 -> CXXVI
i=127 -> CXXVII
i=128 -> CXXVIII
i=129 -> CXXIX
i=130 -> CXXX
i=131 -> CXXXI
i=132 -> CXXXII
i=133 -> CXXXIII
i=134 -> CXXXIV
i=135 -> CXXXV
i=136 -> CXXXVI
i=137 -> CXXXVII
i=138 -> CXXXVIII
i=139 -> CXXXIX
i=140 -> CXL
i=141 -> CXLI
i=142 -> CXLII
i=143 -> CXLIII
i=144 -> CXLIV
i=145 -> CXLV
i=146 -> CXLVI
i=147 -> CXLVII
i=148 -> CXLVIII
i=149 -> CXLIX
i=150 -> CL
i=151 -> CLI
i=152 -> CLII
i=153 -> CLIII
i=154 -> CLIV
i=155 -> CLV
i=156 -> CLVI
i=157 -> CLVII
i=158 -> CLVIII
i=159 -> CLIX
i=160 -> CLX
i=161 -> CLXI
i=162 -> CLXII
i=163 -> CLXIII
i=164 -> CLXIV
i=165 -> CLXV
i=166 -> CLXVI
i=167 -> CLXVII
i=168 -> CLXVIII
i=169 -> CLXIX
i=170 -> CLXX
i=171 -> CLXXI
i=172 -> CLXXII
i=173 -> CLXXIII
i=174 -> CLXXIV
i=175 -> CLXXV
i=176 -> CLXXVI
i=177 -> CLXXVII
i=178 -> CLXXVIII
i=179 -> CLXXIX
i=180 -> CLXXX
i=181 -> CLXXXI
i=182 -> CLXXXII
i=183 -> CLXXXIII
i=184 -> CLXXXIV
i=185 -> CLXXXV
i=186 -> CLXXXVI
i=187 -> CLXXXVII
i=188 -> CLXXXVIII
i=189 -> CLXXXIX
i=190 -> CXC
i=191 -> CXCI
i=192 -> CXCII
i=193 -> CXCIII
i=194 -> CXCIV
i=195 -> CXCV
i=196 -> CXCVI
i=197 -> CXCVII
i=198 -> CXCVIII
i=199 -> CXCIX
i=200 -> CC
i=201 -> CCI
i=202 -> CCII
i=203 -> CCIII
i=204 -> CCIV
i=205 -> CCV
i=206 -> CCVI
i=207 -> CCVII
i=208 -> CCVIII
i=209 -> CCIX
i=210 -> CCX
i=211 -> CCXI
i=212 -> CCXII
i=213 -> CCXIII
i=214 -> CCXIV
i=215 -> CCXV
i=216 -> CCXVI
i=217 -> CCXVII
i=218 -> CCXVIII
i=219 -> CCXIX
i=220 -> CCXX
i=221 -> CCXXI
i=222 -> CCXXII
i=223 -> CCXXIII
i=224 -> CCXXIV
i=225 -> CCXXV
i=226 -> CCXXVI
i=227 -> CCXXVII
i=228 -> CCXXVIII
i=229 -> CCXXIX
i=230 -> CCXXX
i=231 -> CCXXXI
i=232 -> CCXXXII
i=233 -> CCXXXIII
i=234 -> CCXXXIV
i=235 -> CCXXXV
i=236 -> CCXXXVI
i=237 -> CCXXXVII
i=238 -> CCXXXVIII
i=239 -> CCXXXIX
i=240 -> CCXL
i=241 -> CCXLI
i=242 -> CCXLII
i=243 -> CCXLIII
i=244 -> CCXLIV
i=245 -> CCXLV
i=246 -> CCXLVI
i=247 -> CCXLVII
i=248 -> CCXLVIII
i=249 -> CCXLIX
i=250 -> CCL
i=251 -> CCLI
i=252 -> CCLII
i=253 -> CCLIII
i=254 -> CCLIV
i=255 -> CCLV
You can pass lists just like other types:
l = [1,2,3]
def stuff(a):
for x in a:
print a
stuff(l)
This prints the list l. Keep in mind lists are passed as references not as a deep copy.
Well try my code, atleast it gives you a string as overlay, you can very well replace it with a button or an image. You wont believe this is my first ever android app LOL. Anyways if you are more experienced with android apps than me, please try
The (+) operator indicates an outer join. This means that Oracle will still return records from the other side of the join even when there is no match. For example if a and b are emp and dept and you can have employees unassigned to a department then the following statement will return details of all employees whether or not they've been assigned to a department.
select * from emp, dept where emp.dept_id=dept.dept_id(+)
So in short, removing the (+) may make a significance difference but you might not notice for a while depending on your data!
I had the same problem and I fixed it by setting ALLOWED_HOSTS = ['*']
and to solve the problem with the static images you have to change the virtual paths in the environment configuration like this:
Virtual Path
Directory
/static/ /opt/python/current/app/yourpj/static/
/media/ /opt/python/current/app/Nuevo/media/
I hope it helps you.
PD: sorry for my bad english.
try
System.Diagnostics.EventLog appLog = new System.Diagnostics.EventLog();
appLog.Source = "This Application's Name";
appLog.WriteEntry("An entry to the Application event log.");
you can use Glide for load and transform into blur image, 1) for only one view,
val requestOptions = RequestOptions()
requestOptions.transform(BlurTransformation(50)) // 0-100
Glide.with(applicationContext).setDefaultRequestOptions(requestOptions)
.load(imageUrl).into(view)
2) if you are using the adapter to load an image in the item, you should write your code in the if-else block, otherwise, it will make all your images blurry.
if(isBlure){
val requestOptions = RequestOptions()
requestOptions.transform(BlurTransformation(50))
Glide.with(applicationContext).setDefaultRequestOptions(requestOptions)
.load(imageUrl).into(view )
}else{
val requestOptions = RequestOptions()
Glide.with(applicationContext).setDefaultRequestOptions(requestOptions).load(imageUrl).into(view)
}
For Laravel 5.2 >=
use the Eloquent method:
inRandomOrder()
The inRandomOrder method may be used to sort the query results randomly. For example, you may use this method to fetch a random user:
$randomUser = DB::table('users')
->inRandomOrder()
->first();
from docs: https://laravel.com/docs/5.2/queries#ordering-grouping-limit-and-offset
double minutes = varTime.TotalMinutes;
int minutesRounded = (int)Math.Round(varTime.TotalMinutes);
TimeSpan.TotalMinutes: The total number of minutes represented by this instance.
No need to embed! Just simply send the user to google and add the var in the search like this: (Remember, code might not work on this, so try in a browser if it doesn't.) Hope it works!
<textarea id="Blah"></textarea><button onclick="search()">Search</button>
<script>
function search() {
var Blah = document.getElementById("Blah").value;
location.replace("https://www.google.com/search?q=" + Blah + "");
}
</script>
function search() {_x000D_
var Blah = document.getElementById("Blah").value;_x000D_
location.replace("https://www.google.com/search?q=" + Blah + "");_x000D_
}
_x000D_
<textarea id="Blah"></textarea><button onclick="search()">Search</button>
_x000D_
You do not need to insert the current timestamp manually as MySQL
provides this facility to store it automatically. When the MySQL
table is created, simply do this:
TIMESTAMP
as your column type Default
value to CURRENT_TIMESTAMP
insert
any rows into the table without inserting any values for the time
columnYou'll see the current timestamp
is automatically inserted when you insert a row. Please see the attached picture.
You need to decode data from input string into unicode, before using it, to avoid encoding problems.
field.text = data.decode("utf8")
I was able to solve this problem by cleaning my build.
Top menu -> Product -> Clean Or keyboard shortcut: Shift+Cmd+K
For those, who want to do it automatically, I have wrote a little two-lines bash script which does next two things:
Renames extracted classes.jar to be like the aar but with a new extension
find . -name '*.aar' -exec sh -c 'unzip -d `dirname {}` {} classes.jar' \;
find . -name '*.aar' -exec sh -c 'mv `dirname {}`/classes.jar `echo {} | sed s/aar/jar/g`' \;
That's it!
I ran into this issue with Visual Studio Code installing pylint from the VS Code prompt. I was able to overcome the issue by opening the Anaconda installation directory and running
pip install pylint
Then VS Code was happy, but that did not fix the issue as running
& C:/Users/happy/Anaconda3/python.exe -m pip install -U pylint
pretty much gave the same error so it seems that VS Code is unable to access the python modules.
Note that VS Code picks up the first python env it see when installed, the bottom left of the screen indicates which env is being used. Clicking on that area allows to set the environment. So even if you ran the pip install for an environment VS Code could be looking at a different one.
Best approach was to make sure that VS code had the correct python environment selected and that same environment is in the system PATH (under System Properties --> Advanced --> Environmental Variables)
Under the Path Variable, Edit and browse to the specific Anaconda directory that you want VSCode to use and add to PATH, I needed to Add the following:
C:\Users\happy\Anaconda3\
C:\Users\happy\Anaconda3\Scripts\
C:\Users\happy\Anaconda3\Library\bin\
C:\Users\happy\Anaconda3\Library\mingw-w64\bin\
Your Anaconda installation directory may differ. One note is that Windows does not have the PATH variable take effect until you restart the terminal. In this case close and re-op VS code. If using a Terminal or PS Shell then close and reopen and check Path to make sure it is included.
There is an efficient solution if you use a map-lookup. If the parents always come before their children you can merge the two for-loops. It supports multiple roots. It gives an error on dangling branches, but can be modified to ignore them. It doesn't require a 3rd-party library. It's, as far as I can tell, the fastest solution.
function list_to_tree(list) {
var map = {}, node, roots = [], i;
for (i = 0; i < list.length; i += 1) {
map[list[i].id] = i; // initialize the map
list[i].children = []; // initialize the children
}
for (i = 0; i < list.length; i += 1) {
node = list[i];
if (node.parentId !== "0") {
// if you have dangling branches check that map[node.parentId] exists
list[map[node.parentId]].children.push(node);
} else {
roots.push(node);
}
}
return roots;
}
var entries = [{
"id": "12",
"parentId": "0",
"text": "Man",
"level": "1",
"children": null
},
{
"id": "6",
"parentId": "12",
"text": "Boy",
"level": "2",
"children": null
},
{
"id": "7",
"parentId": "12",
"text": "Other",
"level": "2",
"children": null
},
{
"id": "9",
"parentId": "0",
"text": "Woman",
"level": "1",
"children": null
},
{
"id": "11",
"parentId": "9",
"text": "Girl",
"level": "2",
"children": null
}
];
console.log(list_to_tree(entries));
_x000D_
If you're into complexity theory this solution is T(n log(n)). The recursive-filter solution is T(n^2) which can be a problem for large data sets.
This is what I've been using for development:
<?xml version="1.0" ?>
<cross-domain-policy>
<allow-access-from domain="*" />
</cross-domain-policy>
This is a very liberal approach, but is fine for my application.
As others have pointed out below, beware the risks of this.
I am also trying to make Autocompleter ignore blurring if a specific element clicked and have a working solution, but for only Firefox due to explicitOriginalTarget
Autocompleter.Base.prototype.onBlur = Autocompleter.Base.prototype.onBlur.wrap(
function(origfunc, ev) {
if ($(this.options.ignoreBlurEventElement)) {
var newTargetElement = (ev.explicitOriginalTarget.nodeType == 3 ? ev.explicitOriginalTarget.parentNode : ev.explicitOriginalTarget);
if (!newTargetElement.descendantOf($(this.options.ignoreBlurEventElement))) {
return origfunc(ev);
}
}
}
);
This code wraps default onBlur method of Autocompleter and checks if ignoreBlurEventElement parameters is set. if it is set, it checks everytime to see if clicked element is ignoreBlurEventElement or not. If it is, Autocompleter does not cal onBlur, else it calls onBlur. The only problem with this is that it only works in Firefox because explicitOriginalTarget property is Mozilla specific . Now I am trying to find a different way than using explicitOriginalTarget. The solution you have mentioned requires you to add onclick behaviour manually to the element. If I can't manage to solve explicitOriginalTarget issue, I guess I will follow your solution.
Also, note that there shouldn't be any space after =
:
set JAVA_HOME=C:\Program Files\Java\jdk1.6.0_27
I think,
EXISTS
is when you need to match the results of query with another subquery.
Query#1 results need to be retrieved where SubQuery results match. Kind of a Join..
E.g. select customers table#1 who have placed orders table#2 too
IN is to retrieve if the value of a specific column lies IN
a list (1,2,3,4,5)
E.g. Select customers who lie in the following zipcodes i.e. zip_code values lies in (....) list.
When to use one over the other... when you feel it reads appropriately (Communicates intent better).
I'm not sure what level of accuracy you need, but what I would do is simply add 1 the first n
numbers, n
being the ceil of the total sum of decimals. In this case that is 3
, so I would add 1 to the first 3 items and floor the rest. Of course this is not super accurate, some numbers might be rounded up or down when it shouldn't but it works okay and will always result in 100%.
So [ 13.626332, 47.989636, 9.596008, 28.788024 ]
would be [14, 48, 10, 28]
because Math.ceil(.626332+.989636+.596008+.788024) == 3
function evenRound( arr ) {
var decimal = -~arr.map(function( a ){ return a % 1 })
.reduce(function( a,b ){ return a + b }); // Ceil of total sum of decimals
for ( var i = 0; i < decimal; ++i ) {
arr[ i ] = ++arr[ i ]; // compensate error by adding 1 the the first n items
}
return arr.map(function( a ){ return ~~a }); // floor all other numbers
}
var nums = evenRound( [ 13.626332, 47.989636, 9.596008, 28.788024 ] );
var total = nums.reduce(function( a,b ){ return a + b }); //=> 100
You can always inform users that the numbers are rounded and may not be super-accurate...
A related (short-term) solution is to store your environment variables in a single file, with a predictable format, that can be sourced when starting a terminal and/or read into the notebook. For example, I have a file, .env
, that has my environment variable definitions in the format VARIABLE_NAME=VARIABLE_VALUE
(no blank lines or extra spaces). You can source this file in the .bashrc
or .bash_profile
files when beginning a new terminal session and you can read this into a notebook with something like,
import os
env_vars = !cat ../script/.env
for var in env_vars:
key, value = var.split('=')
os.environ[key] = value
I used a relative path to show that this .env
file can live anywhere and be referenced relative to the directory containing the notebook file. This also has the advantage of not displaying the variable values within your code anywhere.
I needed something similar (left, center and right aligned items), but with ability to mark centered items as active. What worked for me was:
http://www.bootply.com/CSI2KcCoEM
<nav class="navbar navbar-default" role="navigation">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="navbar-left"><a href="#">Left 1</a></li>
<li class="navbar-left"><a href="#">Left 2</a></li>
<li class="active"><a href="#">Center 1</a></li>
<li><a href="#">Center 2</a></li>
<li><a href="#">Center 3</a></li>
<li class="navbar-right"><a href="#">Right 1</a></li>
<li class="navbar-right"><a href="#">Right 2</a></li>
</ul>
</div>
</nav>
CSS:
@media (min-width: 768px) {
.navbar-nav {
width: 100%;
text-align: center;
}
.navbar-nav > li {
float: none;
display: inline-block;
}
.navbar-nav > li.navbar-right {
float: right !important;
}
}
Switch case is every help full instead of if else statement :
switch ($("[id*=btnSave]").val()) {
case 'Search':
saveFlight();
break;
case 'Update':
break;
case 'Delete':
break;
default:
break;
}
I would really recommend anyone entering this subject to read Addy Osmani's free book:
"Learning JavaScript Design Patterns".
http://addyosmani.com/resources/essentialjsdesignpatterns/book/
This book helped me out immensely when I was starting into writing more maintainable JavaScript and I still use it as a reference. Have a look at his different module pattern implementations, he explains them really well.
The edit shows exactly the difference between code that works and code that doesn't.
This check always evaluates both of the conditions, throwing an exception if str
is null:
if (str == null | str.length() == 0) {
Whereas this (using ||
instead of |
) is short-circuiting - if the first condition evaluates to true
, the second is not evaluated.
See section 15.24 of the JLS for a description of ||
, and section 15.22.2 for binary |
. The intro to section 15.24 is the important bit though:
The conditional-or operator || operator is like | (§15.22.2), but evaluates its right-hand operand only if the value of its left-hand operand is false.
import difflib
lines1 = '''
dog
cat
bird
buffalo
gophers
hound
horse
'''.strip().splitlines()
lines2 = '''
cat
dog
bird
buffalo
gopher
horse
mouse
'''.strip().splitlines()
# Changes:
# swapped positions of cat and dog
# changed gophers to gopher
# removed hound
# added mouse
for line in difflib.unified_diff(lines1, lines2, fromfile='file1', tofile='file2', lineterm=''):
print line
Outputs the following:
--- file1
+++ file2
@@ -1,7 +1,7 @@
+cat
dog
-cat
bird
buffalo
-gophers
-hound
+gopher
horse
+mouse
This diff gives you context -- surrounding lines to help make it clear how the file is different. You can see "cat" here twice, because it was removed from below "dog" and added above it.
You can use n=0 to remove the context.
for line in difflib.unified_diff(lines1, lines2, fromfile='file1', tofile='file2', lineterm='', n=0):
print line
Outputting this:
--- file1
+++ file2
@@ -0,0 +1 @@
+cat
@@ -2 +2,0 @@
-cat
@@ -5,2 +5 @@
-gophers
-hound
+gopher
@@ -7,0 +7 @@
+mouse
But now it's full of the "@@" lines telling you the position in the file that has changed. Let's remove the extra lines to make it more readable.
for line in difflib.unified_diff(lines1, lines2, fromfile='file1', tofile='file2', lineterm='', n=0):
for prefix in ('---', '+++', '@@'):
if line.startswith(prefix):
break
else:
print line
Giving us this output:
+cat
-cat
-gophers
-hound
+gopher
+mouse
Now what do you want it to do? If you ignore all removed lines, then you won't see that "hound" was removed. If you're happy just showing the additions to the file, then you could do this:
diff = difflib.unified_diff(lines1, lines2, fromfile='file1', tofile='file2', lineterm='', n=0)
lines = list(diff)[2:]
added = [line[1:] for line in lines if line[0] == '+']
removed = [line[1:] for line in lines if line[0] == '-']
print 'additions:'
for line in added:
print line
print
print 'additions, ignoring position'
for line in added:
if line not in removed:
print line
Outputting:
additions:
cat
gopher
mouse
additions, ignoring position:
gopher
mouse
You can probably tell by now that there are various ways to "print the differences" of two files, so you will need to be very specific if you want more help.
Your @POST
method should be accepting a JSON object instead of a string. Jersey uses JAXB to support marshaling and unmarshaling JSON objects (see the jersey docs for details). Create a class like:
@XmlRootElement
public class MyJaxBean {
@XmlElement public String param1;
@XmlElement public String param2;
}
Then your @POST
method would look like the following:
@POST @Consumes("application/json")
@Path("/create")
public void create(final MyJaxBean input) {
System.out.println("param1 = " + input.param1);
System.out.println("param2 = " + input.param2);
}
This method expects to receive JSON object as the body of the HTTP POST. JAX-RS passes the content body of the HTTP message as an unannotated parameter -- input
in this case. The actual message would look something like:
POST /create HTTP/1.1
Content-Type: application/json
Content-Length: 35
Host: www.example.com
{"param1":"hello","param2":"world"}
Using JSON in this way is quite common for obvious reasons. However, if you are generating or consuming it in something other than JavaScript, then you do have to be careful to properly escape the data. In JAX-RS, you would use a MessageBodyReader and MessageBodyWriter to implement this. I believe that Jersey already has implementations for the required types (e.g., Java primitives and JAXB wrapped classes) as well as for JSON. JAX-RS supports a number of other methods for passing data. These don't require the creation of a new class since the data is passed using simple argument passing.
HTML <FORM>
The parameters would be annotated using @FormParam:
@POST
@Path("/create")
public void create(@FormParam("param1") String param1,
@FormParam("param2") String param2) {
...
}
The browser will encode the form using "application/x-www-form-urlencoded". The JAX-RS runtime will take care of decoding the body and passing it to the method. Here's what you should see on the wire:
POST /create HTTP/1.1
Host: www.example.com
Content-Type: application/x-www-form-urlencoded;charset=UTF-8
Content-Length: 25
param1=hello¶m2=world
The content is URL encoded in this case.
If you do not know the names of the FormParam's you can do the following:
@POST @Consumes("application/x-www-form-urlencoded")
@Path("/create")
public void create(final MultivaluedMap<String, String> formParams) {
...
}
HTTP Headers
You can using the @HeaderParam annotation if you want to pass parameters via HTTP headers:
@POST
@Path("/create")
public void create(@HeaderParam("param1") String param1,
@HeaderParam("param2") String param2) {
...
}
Here's what the HTTP message would look like. Note that this POST does not have a body.
POST /create HTTP/1.1
Content-Length: 0
Host: www.example.com
param1: hello
param2: world
I wouldn't use this method for generalized parameter passing. It is really handy if you need to access the value of a particular HTTP header though.
HTTP Query Parameters
This method is primarily used with HTTP GETs but it is equally applicable to POSTs. It uses the @QueryParam annotation.
@POST
@Path("/create")
public void create(@QueryParam("param1") String param1,
@QueryParam("param2") String param2) {
...
}
Like the previous technique, passing parameters via the query string does not require a message body. Here's the HTTP message:
POST /create?param1=hello¶m2=world HTTP/1.1
Content-Length: 0
Host: www.example.com
You do have to be particularly careful to properly encode query parameters on the client side. Using query parameters can be problematic due to URL length restrictions enforced by some proxies as well as problems associated with encoding them.
HTTP Path Parameters
Path parameters are similar to query parameters except that they are embedded in the HTTP resource path. This method seems to be in favor today. There are impacts with respect to HTTP caching since the path is what really defines the HTTP resource. The code looks a little different than the others since the @Path annotation is modified and it uses @PathParam:
@POST
@Path("/create/{param1}/{param2}")
public void create(@PathParam("param1") String param1,
@PathParam("param2") String param2) {
...
}
The message is similar to the query parameter version except that the names of the parameters are not included anywhere in the message.
POST /create/hello/world HTTP/1.1
Content-Length: 0
Host: www.example.com
This method shares the same encoding woes that the query parameter version. Path segments are encoded differently so you do have to be careful there as well.
As you can see, there are pros and cons to each method. The choice is usually decided by your clients. If you are serving FORM
-based HTML pages, then use @FormParam
. If your clients are JavaScript+HTML5-based, then you will probably want to use JAXB-based serialization and JSON objects. The MessageBodyReader/Writer
implementations should take care of the necessary escaping for you so that is one fewer thing that can go wrong. If your client is Java based but does not have a good XML processor (e.g., Android), then I would probably use FORM
encoding since a content body is easier to generate and encode properly than URLs are. Hopefully this mini-wiki entry sheds some light on the various methods that JAX-RS supports.
Note: in the interest of full disclosure, I haven't actually used this feature of Jersey yet. We were tinkering with it since we have a number of JAXB+JAX-RS applications deployed and are moving into the mobile client space. JSON is a much better fit that XML on HTML5 or jQuery-based solutions.
I found it works nicely with Jim Lewis's answer just add a bit like this:
$ export DIR=/path/dir && cd $DIR && chmod -R +x *
$ find . -maxdepth 1 -type f -name '*.sh' -exec {} \; > results.out
If you want to execute in sort order, modify it like this:
$ export DIR=/path/dir && cd $DIR && chmod -R +x *
find . -maxdepth 2 -type f -name '*.sh' | sort | bash > results.out
Just for an example, this will execute with following order:
bash: 1: ./assets/main.sh
bash: 2: ./builder/clean.sh
bash: 3: ./builder/concept/compose.sh
bash: 4: ./builder/concept/market.sh
bash: 5: ./builder/concept/services.sh
bash: 6: ./builder/curl.sh
bash: 7: ./builder/identity.sh
bash: 8: ./concept/compose.sh
bash: 9: ./concept/market.sh
bash: 10: ./concept/services.sh
bash: 11: ./product/compose.sh
bash: 12: ./product/market.sh
bash: 13: ./product/services.sh
bash: 14: ./xferlog.sh
If you want to execute in unlimited depth by certain condition, you can use this:
export DIR=/path/dir && cd $DIR && chmod -R +x *
find . -type f -name '*.sh' | sort | bash > results.out
then put on top of each files in the child directories like this:
#!/bin/bash
[[ "$(dirname `pwd`)" == $DIR ]] && echo "Executing `realpath $0`.." || return
and somewhere in the body of parent file:
if <a condition is matched>
then
#execute child files
export DIR=`pwd`
fi
This can be the solution:
git fetch
git checkout origin/master -- FolderPathName/fileName
Thanks.
The default behaviour of Newtonsoft.Json is going to find the public
constructors. If your default constructor is only used in containing class or the same assembly, you can reduce the access level to protected
or internal
so that Newtonsoft.Json will pick your desired public
constructor.
Admittedly, this solution is rather very limited to specific cases.
internal Result() { }
public Result(int? code, string format, Dictionary<string, string> details = null)
{
Code = code ?? ERROR_CODE;
Format = format;
if (details == null)
Details = new Dictionary<string, string>();
else
Details = details;
}
You can do
current_user.methods
For better listing
puts "\n\current_user.methods : "+ current_user.methods.sort.join("\n").to_s+"\n\n"
Personally, I quite like the C++2011 approach because it neither requires you to use sizeof()
nor to remember adjusting the array bounds if you ever change the array bounds (and you can define the relevant function in C++2003 if you want, too):
#include <iterator>
#include <vector>
int x[] = { 1, 2, 3, 4, 5 };
std::vector<int> v(std::begin(x), std::end(x));
Obviously, with C++2011 you might want to use initializer lists anyway:
std::vector<int> v({ 1, 2, 3, 4, 5 });
It should be noted that for some files you must not have the BOM even on Windows. Examples are SQL*plus
or VBScript
files. In case such files contains a BOM you get an error when you try to execute them.
var iframe = document.getElementById('iframe');
$(iframe).contents().find("html").html();
You can also use the isNaN()
function:
var s = ''
var num = isNaN(parseInt(s)) ? 0 : parseInt(s)
If you want to use the distribution Ruby instead of rb-env/rvm, you can set up a GEM_HOME
for your current user. Start by creating a directory to store the Ruby gems for your user:
$ mkdir ~/.ruby
Then update your shell to use that directory for GEM_HOME
and to update your PATH
variable to include the Ruby gem bin directory.
$ echo 'export GEM_HOME=~/.ruby/' >> ~/.bashrc
$ echo 'export PATH="$PATH:~/.ruby/bin"' >> ~/.bashrc
$ source ~/.bashrc
(That last line will reload the environment variables in your current shell.)
Now you should be able to install Ruby gems under your user using the gem
command. I was able to get this working with Ruby 2.5.1 under Ubuntu 18.04. If you are using a shell that is not Bash, then you will need to edit the startup script for that shell instead of bashrc
.
You can add a jar in Eclipse by right-clicking on the Project ? Build Path ? Configure Build Path. Under Libraries tab, click Add Jars or Add External JARs and give the Jar. A quick demo here.
The above solution is obviously a "Quick" one. However, if you are working on a project where you need to commit files to the source control repository, I would recommend adding Jar files to a dedicated library folder within your source control repository and referencing few or all of them as mentioned above.
for windows, open cmd and enter into bin
directory by running command:
cd C:\Users\username\AppData\Local\Android\sdk\tools\android\Sdk\tools\bin
then run sdkmanager --licenses
command, it asks to accept licenses.
The most important thing is, the action created must return partial view, see below.
public ActionResult _YourPartialViewSection()
{
return PartialView();
}
When you look up your php-fpm.conf
example location:
cat /usr/src/php/sapi/fpm/php-fpm.conf
you will see, that you need to configure the PHP FastCGI Process Manager to actually use Unix sockets. Per default, the listen
directive` is set up to listen on a TCP socket on one port. If there's no Unix socket defined, you won't find a Unix socket file.
; The address on which to accept FastCGI requests.
; Valid syntaxes are:
; 'ip.add.re.ss:port' - to listen on a TCP socket to a specific IPv4 address on
; a specific port;
; '[ip:6:addr:ess]:port' - to listen on a TCP socket to a specific IPv6 address on
; a specific port;
; 'port' - to listen on a TCP socket to all IPv4 addresses on a
; specific port;
; '[::]:port' - to listen on a TCP socket to all addresses
; (IPv6 and IPv4-mapped) on a specific port;
; '/path/to/unix/socket' - to listen on a unix socket.
; Note: This value is mandatory.
listen = 127.0.0.1:9000
I know the problem! You just put a dot after "test.jpg"!
cvSaveImage("test.jpg". ,pSaveImg);
I may be wrong but I think its not good!
a = [0,4,8,2,5,0,2,6]
a.instance_eval { reduce(:+) / size.to_f } #=> 3.375
A version of this that does not use instance_eval
would be:
a = [0,4,8,2,5,0,2,6]
a.reduce(:+) / a.size.to_f #=> 3.375
I encountered the same problem and solved it by
git checkout -f branch
Well, be careful with the -f
switch. You will lose any uncommitted changes if you use the -f
switch. While there may be some use cases where it is helpful to use -f
, in most cases, you may want to stash
your changes and then switch
branches. The stashing
procedure is explained above.
It's possible with a lot of work.
Basically, you have to post likes action via the Open Graph API. Then, you can add a custom design to your like button.
But then, you''ll need to keep track yourself of the likes so a returning user will be able to unlike content he liked previously.
Plus, you'll need to ask user to log into your app and ask them the publish_action
permission.
All in all, if you're doing this for an application, it may worth it. For a website where you basically want user to like articles, then this is really to much.
Also, consider that you increase your drop-off rate each time you ask user a permission via a Facebook login.
If you want to see an example, I've recently made an app using the open graph like button, just hover on some photos in the mosaique to see it
One is an alias for the other.
You commented: not working if oldtable has an identity column.
I think that's your answer. The #newtable gets an identity column from the oldtable automatically. Run the next statements:
create table oldtable (id int not null identity(1,1), v varchar(10) )
select * into #newtable from oldtable
use tempdb
GO
sp_help #newtable
It shows you that #newtable does have the identity column.
If you don't want the identity column, try this at creation of #newtable:
select id + 1 - 1 as nid, v, IDENTITY( int ) as id into #newtable
from oldtable
If the problem still persists,
Put the- mysql-connector-java-5.0.8-bin jar in a place inside your Tomcat->lib->folder (No matter where you've installed your Tomcat). And change your environmental variable (Done by clicking Properties of Mycomputer -Advanced system settings- Environmental variables-And set a new variable name & variable values as the place where your lib file resides.Dont forget to enter a ; at the end of the path)
If still problem persists Try downloading commons-collections-2.0.jar (http://www.docjar.com/jar_detail/commons-collections-2.0.jar.html) and paste the jar in the same place where your mysql jar resides (ie) inside Tomcat-lib.
Clean your project-Stop your server- Finally try to run.
For Swift 3.4.1, this code is working:
implements
class AddAdvertisementViewController : UINavigationControllerDelegate, UIImagePickerControllerDelegate, UIActionSheetDelegate
var imagePicker = UIImagePickerController()
var file :UIImage!
//action sheet tap on image
func tapOnButton(){
let optionMenu = UIAlertController(title: nil, message: "Add Photo", preferredStyle: .actionSheet)
let galleryAction = UIAlertAction(title: "Gallery", style: .default, handler:{
(alert: UIAlertAction!) -> Void in
self.addImageOnTapped()
})
let cameraAction = UIAlertAction(title: "Camera", style: .default, handler:{
(alert: UIAlertAction!) -> Void in
self.openCameraButton()
})
let cancleAction = UIAlertAction(title: "Cancel", style: .cancel, handler:{
(alert: UIAlertAction!) -> Void in
print("Cancel")
})
optionMenu.addAction(galleryAction)
optionMenu.addAction(cameraAction)
optionMenu.addAction(cancleAction)
self.present(optionMenu, animated: true, completion: nil)
}
func openCameraButton(){
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera)
{
imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = UIImagePickerControllerSourceType.camera;
imagePicker.allowsEditing = true
self.present(imagePicker, animated: true, completion: nil)
}
}
func addImageOnTapped(){
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.photoLibrary){
imagePicker.delegate = self
imagePicker.sourceType = UIImagePickerControllerSourceType.photoLibrary;
imagePicker.allowsEditing = true
self.present(imagePicker, animated: true, completion: nil)
}
}
//picker pick image and store value imageview
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]){
if let image = info[UIImagePickerControllerOriginalImage] as? UIImage
{
file = image
imgViewOne.image = image
imagePicker.dismiss(animated: true, completion: nil);
}
}
It seems you can provide just the local image name, assuming it is in the same folder...
It suffices like:
background-image: url("img1.png")
Really depends on your requirement, although lately I have seen a trend for classes with at least one bare constructor defined.
The upside of posting your parameters in via constructor is that you know those values can be relied on after instantiation. The downside is that you'll need to put more work in with any library that expects to be able to create objects with a bare constructor.
My personal preference is to go with a bare constructor and set any properties as part of the declaration.
Person p=new Person()
{
Name = "Han Solo",
Age = 39
};
This gets around the "class lacks bare constructor" problem, plus reduces maintenance ( I can set more things without changing the constructor ).
I found the log file at /usr/local/var/log/postgres.log on a mac installation from brew.
On Linux try these:
set wrap off
set trimout ON
set trimspool on
set serveroutput on
set pagesize 0
set long 20000000
set longchunksize 20000000
set linesize 4000
You can read a very good solution in: http://www.codeproject.com/Articles/363338/Factory-Pattern-in-Cplusplus
The best solution is on the "comments and discussions", see the "No need for static Create methods".
From this idea, I've done a factory. Note that I'm using Qt, but you can change QMap and QString for std equivalents.
#ifndef FACTORY_H
#define FACTORY_H
#include <QMap>
#include <QString>
template <typename T>
class Factory
{
public:
template <typename TDerived>
void registerType(QString name)
{
static_assert(std::is_base_of<T, TDerived>::value, "Factory::registerType doesn't accept this type because doesn't derive from base class");
_createFuncs[name] = &createFunc<TDerived>;
}
T* create(QString name) {
typename QMap<QString,PCreateFunc>::const_iterator it = _createFuncs.find(name);
if (it != _createFuncs.end()) {
return it.value()();
}
return nullptr;
}
private:
template <typename TDerived>
static T* createFunc()
{
return new TDerived();
}
typedef T* (*PCreateFunc)();
QMap<QString,PCreateFunc> _createFuncs;
};
#endif // FACTORY_H
Sample usage:
Factory<BaseClass> f;
f.registerType<Descendant1>("Descendant1");
f.registerType<Descendant2>("Descendant2");
Descendant1* d1 = static_cast<Descendant1*>(f.create("Descendant1"));
Descendant2* d2 = static_cast<Descendant2*>(f.create("Descendant2"));
BaseClass *b1 = f.create("Descendant1");
BaseClass *b2 = f.create("Descendant2");
If your VM already came with VMware Tools pre-installed, but this still isn't working for you--or if you install and still no luck--make sure you run Workstation or Player as Administrator. That fixed the issue for me.
In general, one doesn't expand out log(a + b)
; you just deal with it as is. That said, there are occasionally circumstances where it makes sense to use the following identity:
log(a + b) = log(a * (1 + b/a)) = log a + log(1 + b/a)
(In fact, this identity is often used when implementing log
in math libraries).
Basically, you check if an object is an instance of a specific class. You normally use it, when you have a reference or parameter to an object that is of a super class or interface type and need to know whether the actual object has some other type (normally more concrete).
Example:
public void doSomething(Number param) {
if( param instanceof Double) {
System.out.println("param is a Double");
}
else if( param instanceof Integer) {
System.out.println("param is an Integer");
}
if( param instanceof Comparable) {
//subclasses of Number like Double etc. implement Comparable
//other subclasses might not -> you could pass Number instances that don't implement that interface
System.out.println("param is comparable");
}
}
Note that if you have to use that operator very often it is generally a hint that your design has some flaws. So in a well designed application you should have to use that operator as little as possible (of course there are exceptions to that general rule).
two of the best options are
$(this).parent("div:first")
$(this).parent().closest('div')
and of course you can find the class attr by
$(this).parent("div:first").attr("class")
$(this).parent().closest('div').attr("class")
While they are not the same thing, in one sense DISTINCT
implies a GROUP BY
, because every DISTINCT
could be re-written using GROUP BY
instead. With that in mind, it doesn't make sense to order by something that's not in the aggregate group.
For example, if you have a table like this:
col1 col2 ---- ---- 1 1 1 2 2 1 2 2 2 3 3 1
and then try to query it like this:
SELECT DISTINCT col1 FROM [table] WHERE col2 > 2 ORDER BY col1, col2
That would make no sense, because there could end up being multiple col2
values per row. Which one should it use for the order? Of course, in this query you know the results wouldn't be that way, but the database server can't know that in advance.
Now, your case is a little different. You included all the columns from the order by
clause in the select
clause, and therefore it would seem at first glance that they were all grouped. However, some of those columns were included in a calculated field. When you do that in combination with distinct, the distinct
directive can only be applied to the final results of the calculation: it doesn't know anything about the source of the calculation any more.
This means the server doesn't really know it can count on those columns any more. It knows that they were used, but it doesn't know if the calculation operation might cause an effect similar to my first simple example above.
So now you need to do something else to tell the server that the columns are okay to use for ordering. There are several ways to do that, but this approach should work okay:
SELECT rsc.RadioServiceCodeId,
rsc.RadioServiceCode + ' - ' + rsc.RadioService as RadioService
FROM sbi_l_radioservicecodes rsc
INNER JOIN sbi_l_radioservicecodegroups rscg
ON rsc.radioservicecodeid = rscg.radioservicecodeid
WHERE rscg.radioservicegroupid IN
(SELECT val FROM dbo.fnParseArray(@RadioServiceGroup,','))
OR @RadioServiceGroup IS NULL
GROUP BY rsc.RadioServiceCode,rsc.RadioServiceCodeId,rsc.RadioService
ORDER BY rsc.RadioServiceCode,rsc.RadioServiceCodeId,rsc.RadioService
Open Terminal
cd to/the/program/location
ruby program.rb
or add #!/usr/bin/env ruby
in the first of your program (script tell that this is executed using Ruby Interpreter)
Open Terminal
cd to/the/program/location
chmod 777 program.rb
./program.rb
>>> N=[2,3,5]
>>> P = 5
>>> type(P)==type(0)
True
>>> type([1,2])==type(N)
True
>>> type(P)==type([1,2])
False
How can I undo every change made to my directory after the last commit, including deleting added files, resetting modified files, and adding back deleted files?
You can undo changes to tracked files with:
git reset HEAD --hard
You can remove untracked files with:
git clean -f
You can remove untracked files and directories with:
git clean -fd
but you can't undo change to untracked files.
You can remove ignored and untracked files and directories
git clean -fdx
but you can't undo change to ignored files.
You can also set clean.requireForce
to false
:
git config --global --add clean.requireForce false
to avoid using -f
(--force
) when you use git clean
.
I would suggest reading this for a specific answer. The conclusion of the article is that using for loop is generally better and faster than the foreach loop.
Download proxy script and check last line for return statement Proxy IP and Port.
Add this IP and Port using these step.
1. Windows -->Preferences-->General -->Network Connection
2. Select Active Provider : Manual
3. Proxy entries select HTTP--> Click on Edit button
4. Then add Host as a proxy IP and port left Required Authentication blank.
5. Restart eclipse
6. Now Eclipse Marketplace... working.
Only thing that worked for me is this function:
Sub DoTrim()
Dim cell As Range
Dim str As String
For Each cell In Selection.Cells
If cell.HasFormula = False Then
str = Left(cell.Value, 1) 'space
While str = " " Or str = Chr(160)
cell.Value = Right(cell.Value, Len(cell.Value) - 1)
str = Left(cell.Value, 1) 'space
Wend
str = Right(cell.Value, 1) 'space
While str = " " Or str = Chr(160)
cell.Value = Left(cell.Value, Len(cell.Value) - 1)
str = Right(cell.Value, 1) 'space
Wend
End If
Next cell
End Sub
trim off everything after the last instance of ":"
cat fileListingPathsAndFiles.txt | grep -o '^.*:'
and if you wanted to drop that last ":"
cat file.txt | grep -o '^.*:' | sed 's/:$//'
@kp123: you'd want to replace :
with /
(where the sed colon should be \/
)
No, there is no "easy" way. Your best bet would be to do a loop where you first check each previous sibling, then move to the parent node and all of its previous siblings.
You'll need to break the selector into two, 1 to check if the current node could be the top level node in your selector, and 1 to check if it's descendants match.
Edit: This might as well be a plugin. You can use this with any selector in any HTML:
(function($) {
$.fn.closestPrior = function(selector) {
selector = selector.replace(/^\s+|\s+$/g, "");
var combinator = selector.search(/[ +~>]|$/);
var parent = selector.substr(0, combinator);
var children = selector.substr(combinator);
var el = this;
var match = $();
while (el.length && !match.length) {
el = el.prev();
if (!el.length) {
var par = el.parent();
// Don't use the parent - you've already checked all of the previous
// elements in this parent, move to its previous sibling, if any.
while (par.length && !par.prev().length) {
par = par.parent();
}
el = par.prev();
if (!el.length) {
break;
}
}
if (el.is(parent) && el.find(children).length) {
match = el.find(children).last();
}
else if (el.find(selector).length) {
match = el.find(selector).last();
}
}
return match;
}
})(jQuery);
Are you mixing C and C++? One issue that can occur is that the declarations in the .h
file for a .c
file need to be surrounded by:
#if defined(__cplusplus)
extern "C" { // Make sure we have C-declarations in C++ programs
#endif
and:
#if defined(__cplusplus)
}
#endif
Note: if unable / unwilling to modify the .h
file(s) in question, you can surround their inclusion with extern "C"
:
extern "C" {
#include <abc.h>
} //extern
When you do return Json(...)
you are specifically telling MVC not to use a view, and to serve serialized JSON data. Your browser opens a download dialog because it doesn't know what to do with this data.
If you instead want to return a view, just do return View(...)
like you normally would:
var dictionary = listLocation.ToDictionary(x => x.label, x => x.value);
return View(new { Values = listLocation });
Then in your view, simply encode your data as JSON and assign it to a JavaScript variable:
<script>
var values = @Html.Raw(Json.Encode(Model.Values));
</script>
EDIT
Here is a bit more complete sample. Since I don't have enough context from you, this sample will assume a controller Foo
, an action Bar
, and a view model FooBarModel
. Additionally, the list of locations is hardcoded:
Controllers/FooController.cs
public class FooController : Controller
{
public ActionResult Bar()
{
var locations = new[]
{
new SelectListItem { Value = "US", Text = "United States" },
new SelectListItem { Value = "CA", Text = "Canada" },
new SelectListItem { Value = "MX", Text = "Mexico" },
};
var model = new FooBarModel
{
Locations = locations,
};
return View(model);
}
}
Models/FooBarModel.cs
public class FooBarModel
{
public IEnumerable<SelectListItem> Locations { get; set; }
}
Views/Foo/Bar.cshtml
@model MyApp.Models.FooBarModel
<script>
var locations = @Html.Raw(Json.Encode(Model.Locations));
</script>
By the looks of your error message, it seems like you are mixing incompatible types (i.e. Ported_LI.Models.Locatio??n
and MyApp.Models.Location
) so, to recap, make sure the type sent from the controller action side match what is received from the view. For this sample in particular, new FooBarModel
in the controller matches @model MyApp.Models.FooBarModel
in the view.
Since it is easy to tackle with Command Prompt. Open the CMD and type following.
netstat -aon | find "8080"
If a process uses above port, it should return something output like this.
TCP xxx.xx.xx.xx:8080 xx.xx.xx.xxx:443 ESTABLISHED 2222
The last column value (2222) is referred to the Process ID (PID).
Just KILL it as follows.
taskkill /F /PID 2222
Now you can start your server.
I had this issue, jquery URL was valid, everything looked good and validation still worked. After a hard refresh CTL+F5 the error went away in Chrome.
You don't actually need a form to do this with Prototype. Just use Object.toQueryString function:
Object.toQueryString({ action: 'ship', order_id: 123, fees: ['f1', 'f2'], 'label': 'a demo' })
// -> 'action=ship&order_id=123&fees=f1&fees=f2&label=a%20demo'
This is possible to do without an iframe
specifically. jQuery is utilised since it's mentioned in the title.
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Load remote content into object element</title>
</head>
<body>
<div id="siteloader"></div>?
<script src="http://code.jquery.com/jquery-1.7.2.min.js"></script>
<script>
$("#siteloader").html('<object data="http://tired.com/">');
</script>
</body>
</html>
axiosTest()
is firing asynchronously
and not being waited for.
A then()
function
needs to be hooked up afterwards in order to capture the response
variable
(axiosTestData
).
See Promise
for more info.
See Async
to level up.
// Dummy Url._x000D_
const url = 'https://jsonplaceholder.typicode.com/posts/1'_x000D_
_x000D_
// Axios Test._x000D_
const axiosTest = axios.get_x000D_
_x000D_
// Axios Test Data._x000D_
axiosTest(url).then(function(axiosTestResult) {_x000D_
console.log('response.JSON:', {_x000D_
message: 'Request received',_x000D_
data: axiosTestResult.data_x000D_
})_x000D_
})
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/axios/0.18.0/axios.js"></script>
_x000D_
You have everything right, but the problem is with getLine1Number()
function.
getLine1Number()- this method returns the phone number string for line 1, i.e the MSISDN for a GSM phone. Return null if it is unavailable.
this method works only for few cell phone but not all phones.
So, if you need to perform operations according to the sim(other than calling), then you should use getSimSerialNumber()
. It is always unique, valid and it always exists.
I was having the same problem while importing the certificate in local keystore. Whenever i issue the keytool command i got the following error.
Certificate was added to keystore keytool error: java.io.FileNotFoundException: C:\Program Files\Java\jdk1.8.0_151\jre\lib\security (Access is denied)
Following solution work for me.
1) make sure you are running command prompt in Rus as Administrator mode
2) Change your current directory to %JAVA_HOME%\jre\lib\security
3) then Issue the below command
keytool -import -alias "mycertificatedemo" -file "C:\Users\name\Downloads\abc.crt" -keystore cacerts
3) give the password changeit
4) enter y
5) you will see the following message on successful "Certificate was added to keystore"
Make sure you are giving the "cacerts" only in -keystore param value , as i was giving the full path like "C**:\Program Files\Java\jdk1.8.0_151\jre\lib\security**".
Hope this will work
I had this issue when I was accidentally using the WRONG "uuid" in my child record. When that happens the constraint looks from the child to the parent record to ensure that the link is correct. I was generating it manually, when I had already rigged my Model to do it automatically. So my fix was:
$parent = Parent:create($recData); // asssigning autogenerated uuid into $parent
Then when I called my child class to insert children, I passed this var value:
$parent->uuid
Hope that helps.
To read a file from internal storage:
Call openFileInput() and pass it the name of the file to read. This returns a FileInputStream. Read bytes from the file with read(). Then close the stream with close().
code::
StringBuilder sb = new StringBuilder();
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line).append("\n");
}
is.close();
} catch(OutOfMemoryError om){
om.printStackTrace();
} catch(Exception ex){
ex.printStackTrace();
}
String result = sb.toString();
Using a simple loop is the most efficient way of doing this.
boolean useLoop(String[] arr, String targetValue) {
for(String s: arr){
if(s.equals(targetValue))
return true;
}
return false;
}
Courtesy to Programcreek
The problem is not with extract
, which can certainly handle 'military time'. It looks like you have a default timestamp format which has HH
instead of HH24
; or at least that's the only way I can see to recreate this:
SQL> select value from nls_session_parameters
2 where parameter = 'NLS_TIMESTAMP_FORMAT';
VALUE
--------------------------------------------------------------------------------
DD-MON-RR HH24.MI.SSXFF
SQL> select extract(hour from cast(to_char(sysdate, 'DD-MON-YYYY HH24:MI:SS')
2 as timestamp)) from dual;
EXTRACT(HOURFROMCAST(TO_CHAR(SYSDATE,'DD-MON-YYYYHH24:MI:SS')ASTIMESTAMP))
--------------------------------------------------------------------------
15
alter session set nls_timestamp_format = 'DD-MON-YYYY HH:MI:SS';
Session altered.
SQL> select extract(hour from cast(to_char(sysdate, 'DD-MON-YYYY HH24:MI:SS')
2 as timestamp)) from dual;
select extract(hour from cast(to_char(sysdate, 'DD-MON-YYYY HH24:MI:SS') as timestamp)) from dual
*
ERROR at line 1:
ORA-01849: hour must be between 1 and 12
So the simple 'fix' is to set the format to something that does recognise 24-hours:
SQL> alter session set nls_timestamp_format = 'DD-MON-YYYY HH24:MI:SS';
Session altered.
SQL> select extract(hour from cast(to_char(sysdate, 'DD-MON-YYYY HH24:MI:SS')
2 as timestamp)) from dual;
EXTRACT(HOURFROMCAST(TO_CHAR(SYSDATE,'DD-MON-YYYYHH24:MI:SS')ASTIMESTAMP))
--------------------------------------------------------------------------
15
Although you don't need the to_char
at all:
SQL> select extract(hour from cast(sysdate as timestamp)) from dual;
EXTRACT(HOURFROMCAST(SYSDATEASTIMESTAMP))
-----------------------------------------
15
The sep='\t' can be use in many forms, for example if you want to read tab separated value: Example: I have a dataset tsv = tab separated value NOT comma separated value df = pd.read_csv('gapminder.tsv'). when you try to read this, it will give you an error because you have tab separated value not csv. so you need to give read csv a different parameter called sep='\t'.
Now you can read: df = pd.read_csv('gapminder.tsv, sep='\t'), with this you can read the it.
Use the below Power shell command to change the execution timeout (Request Timeout)
Please note that I have given this for default web site, before using these please change the site and then try to use this.
Set-WebConfigurationProperty -pspath 'MACHINE/WEBROOT/APPHOST/Default Web Site' -filter "system.web/httpRuntime" -name "executionTimeout" -value "00:01:40"
Or, You can use the below C# code to do the same thing
using System;
using System.Text;
using Microsoft.Web.Administration;
internal static class Sample {
private static void Main() {
using(ServerManager serverManager = new ServerManager()) {
Configuration config = serverManager.GetWebConfiguration("Default Web Site");
ConfigurationSection httpRuntimeSection = config.GetSection("system.web/httpRuntime");
httpRuntimeSection["executionTimeout"] = TimeSpan.Parse("00:01:40");
serverManager.CommitChanges();
}
}
}
Or, you can use the JavaScript to do this.
var adminManager = new ActiveXObject('Microsoft.ApplicationHost.WritableAdminManager');
adminManager.CommitPath = "MACHINE/WEBROOT/APPHOST/Default Web Site";
var httpRuntimeSection = adminManager.GetAdminSection("system.web/httpRuntime", "MACHINE/WEBROOT/APPHOST/Default Web Site");
httpRuntimeSection.Properties.Item("executionTimeout").Value = "00:01:40";
adminManager.CommitChanges();
Or, you can use the AppCmd commands.
appcmd.exe set config "Default Web Site" -section:system.web/httpRuntime /executionTimeout:"00:01:40"
Others have already said that date literals in SQL Server require being surrounded with single quotes, but I wanted to add that you can solve your month/day mixup problem two ways (that is, the problem where 25 is seen as the month and 5 the day) :
Use an explicit Convert(datetime, 'datevalue', style)
where style is one of the numeric style codes, see Cast and Convert. The style parameter isn't just for converting dates to strings but also for determining how strings are parsed to dates.
Use a region-independent format for dates stored as strings. The one I use is 'yyyymmdd hh:mm:ss', or consider ISO format, yyyy-mm-ddThh:mi:ss.mmm
. Based on experimentation, there are NO other language-invariant format string. (Though I think you can include time zone at the end, see the above link).
If you are trying to simply return a string to a View, try this:
public string Test()
{
return "test";
}
This will return a view with the word test in it. You can insert some html in the string.
You can also try this:
public ActionResult Index()
{
return Content("<html><b>test</b></html>");
}
After many fruitful hours of exploring OCR libraries, bounding boxes and clustering algorithms - I found a solution so simple it makes you want to cry!
I hope you are using Linux;
pdftotext -layout NAME_OF_PDF.pdf
AMAZING!!
Now you have a nice text file with all the information lined up in nice columns, now it is trivial to format into a csv etc..
It is for times like this that I love Linux, these guys came up with AMAZING solutions to everything, and put it there for FREE!
The normal practice is to HTML-escape any user-controlled data during redisplaying in JSP, not during processing the submitted data in servlet nor during storing in DB. In JSP you can use the JSTL (to install it, just drop jstl-1.2.jar in /WEB-INF/lib
) <c:out>
tag or fn:escapeXml
function for this. E.g.
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
...
<p>Welcome <c:out value="${user.name}" /></p>
and
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
...
<input name="username" value="${fn:escapeXml(param.username)}">
That's it. No need for a blacklist. Note that user-controlled data covers everything which comes in by a HTTP request: the request parameters, body and headers(!!).
If you HTML-escape it during processing the submitted data and/or storing in DB as well, then it's all spread over the business code and/or in the database. That's only maintenance trouble and you will risk double-escapes or more when you do it at different places (e.g. &
would become &amp;
instead of &
so that the enduser would literally see &
instead of &
in view. The business code and DB are in turn not sensitive for XSS. Only the view is. You should then escape it only right there in view.
jQuery get value of select html elements using on Change event
$(document).ready(function () { _x000D_
$('body').on('change','#select_box', function() {_x000D_
$('#show_only').val(this.value);_x000D_
});_x000D_
});
_x000D_
<!DOCTYPE html> _x000D_
<html> _x000D_
<title>jQuery Select OnChnage Method</title>_x000D_
<head> _x000D_
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script> _x000D_
</head> _x000D_
<body> _x000D_
<select id="select_box">_x000D_
<option value="">Select One</option>_x000D_
<option value="One">One</option>_x000D_
<option value="Two">Two</option>_x000D_
<option value="Three">Three</option>_x000D_
<option value="Four">Four</option>_x000D_
<option value="Five">Five</option>_x000D_
</select>_x000D_
<br><br> _x000D_
<input type="text" id="show_only" disabled="">_x000D_
</body> _x000D_
</html>
_x000D_
There may be a better way, but you can always copy the column into a new column, drop it and rename the new column back to the name of the first column.
to wit:
ALTER TABLE MyTable ADD NewColumnName DECIMAL(16, 2);
GO
UPDATE MyTable
SET NewColumnName = OldColumnName;
GO
ALTER TABLE CONTRACTS DROP COLUMN OldColumnName;
GO
EXEC sp_rename
@objname = 'MyTable.NewColumnName',
@newname = 'OldColumnName',
@objtype = 'COLUMN'
GO
This was tested on SQL Server 2008 R2, but should work on SQL Server 2000+.
From other answers here, I was kind of confused with how git rebase -i
could be used to remove a commit, so I hope it's OK to jot down my test case here (very similar to the OP).
Here is a bash
script that you can paste in to create a test repository in the /tmp
folder:
set -x
rm -rf /tmp/myrepo*
cd /tmp
mkdir myrepo_git
cd myrepo_git
git init
git config user.name me
git config user.email [email protected]
mkdir folder
echo aaaa >> folder/file.txt
git add folder/file.txt
git commit -m "1st git commit"
echo bbbb >> folder/file.txt
git add folder/file.txt
git commit -m "2nd git commit"
echo cccc >> folder/file.txt
git add folder/file.txt
git commit -m "3rd git commit"
echo dddd >> folder/file.txt
git add folder/file.txt
git commit -m "4th git commit"
echo eeee >> folder/file.txt
git add folder/file.txt
git commit -m "5th git commit"
At this point, we have a file.txt
with these contents:
aaaa
bbbb
cccc
dddd
eeee
At this point, HEAD is at the 5th commit, HEAD~1 would be the 4th - and HEAD~4 would be the 1st commit (so HEAD~5 wouldn't exist). Let's say we want to remove the 3rd commit - we can issue this command in the myrepo_git
directory:
git rebase -i HEAD~4
(Note that git rebase -i HEAD~5
results with "fatal: Needed a single revision; invalid upstream HEAD~5".) A text editor (see screenshot in @Dennis' answer) will open with these contents:
pick 5978582 2nd git commit
pick 448c212 3rd git commit
pick b50213c 4th git commit
pick a9c8fa1 5th git commit
# Rebase b916e7f..a9c8fa1 onto b916e7f
# ...
So we get all commits since (but not including) our requested HEAD~4. Delete the line pick 448c212 3rd git commit
and save the file; you'll get this response from git rebase
:
error: could not apply b50213c... 4th git commit
When you have resolved this problem run "git rebase --continue".
If you would prefer to skip this patch, instead run "git rebase --skip".
To check out the original branch and stop rebasing run "git rebase --abort".
Could not apply b50213c... 4th git commit
At this point open myrepo_git/folder/file.txt
in a text editor; you'll see it has been modified:
aaaa
bbbb
<<<<<<< HEAD
=======
cccc
dddd
>>>>>>> b50213c... 4th git commit
Basically, git
sees that when HEAD got to 2nd commit, there was content of aaaa
+ bbbb
; and then it has a patch of added cccc
+dddd
which it doesn't know how to append to the existing content.
So here git
cannot decide for you - it is you who has to make a decision: by removing the 3rd commit, you either keep the changes introduced by it (here, the line cccc
) -- or you don't. If you don't, simply remove the extra lines - including the cccc
- in folder/file.txt
using a text editor, so it looks like this:
aaaa
bbbb
dddd
... and then save folder/file.txt
. Now you can issue the following commands in myrepo_git
directory:
$ nano folder/file.txt # text editor - edit, save
$ git rebase --continue
folder/file.txt: needs merge
You must edit all merge conflicts and then
mark them as resolved using git add
Ah - so in order to mark that we've solved the conflict, we must git add
the folder/file.txt
, before doing git rebase --continue
:
$ git add folder/file.txt
$ git rebase --continue
Here a text editor opens again, showing the line 4th git commit
- here we have a chance to change the commit message (which in this case could be meaningfully changed to 4th (and removed 3rd) commit
or similar). Let's say you don't want to - so just exit the text editor without saving; once you do that, you'll get:
$ git rebase --continue
[detached HEAD b8275fc] 4th git commit
1 file changed, 1 insertion(+)
Successfully rebased and updated refs/heads/master.
At this point, now you have a history like this (which you could also inspect with say gitk .
or other tools) of the contents of folder/file.txt
(with, apparently, unchanged timestamps of the original commits):
1st git commit | +aaaa
----------------------------------------------
2nd git commit | aaaa
| +bbbb
----------------------------------------------
4th git commit | aaaa
| bbbb
| +dddd
----------------------------------------------
5th git commit | aaaa
| bbbb
| dddd
| +eeee
And if previously, we decided to keep the line cccc
(the contents of the 3rd git commit that we removed), we would have had:
1st git commit | +aaaa
----------------------------------------------
2nd git commit | aaaa
| +bbbb
----------------------------------------------
4th git commit | aaaa
| bbbb
| +cccc
| +dddd
----------------------------------------------
5th git commit | aaaa
| bbbb
| cccc
| dddd
| +eeee
Well, this was the kind of reading I hoped I'd have found, to start grokking how git rebase
works in terms of deleting commits/revisions; so hope it might help others too...
To simplify things here's a jQuery plugin that can achieve this goal : https://github.com/haggen/readonly
Replace .attr('readonly', 'readonly')
with .readonly()
instead.
That's it.
For example, change from $(".someClass").attr('readonly', 'readonly');
to $(".someClass").readonly();
.
It seems a lot of different libraries and what not have seem to come and go over the previous years. However as of April 2016, this solution worked well for me. Strings easily replaced by ints.
//outputfilename will be something like: "C:/MyFolder/MyFile.txt"
void WriteDictionaryAsJson(Dictionary<string, List<string>> myDict, string outputfilename)
{
DataContractJsonSerializer js = new DataContractJsonSerializer(typeof(Dictionary<string, List<string>>));
MemoryStream ms = new MemoryStream();
js.WriteObject(ms, myDict); //Does the serialization.
StreamWriter streamwriter = new StreamWriter(outputfilename);
streamwriter.AutoFlush = true; // Without this, I've run into issues with the stream being "full"...this solves that problem.
ms.Position = 0; //ms contains our data in json format, so let's start from the beginning
StreamReader sr = new StreamReader(ms); //Read all of our memory
streamwriter.WriteLine(sr.ReadToEnd()); // and write it out.
ms.Close(); //Shutdown everything since we're done.
streamwriter.Close();
sr.Close();
}
Two import points. First, be sure to add System.Runtime.Serliazation as a reference in your project inside Visual Studio's Solution Explorer. Second, add this line,
using System.Runtime.Serialization.Json;
at the top of the file with the rest of your usings, so the DataContractJsonSerializer
class can be found. This blog post has more information on this method of serialization.
My data is a dictionary with 3 strings, each pointing to a list of strings. The lists of strings have lengths 3, 4, and 1. The data looks like this:
StringKeyofDictionary1 => ["abc","def","ghi"]
StringKeyofDictionary2 => ["String01","String02","String03","String04"]
Stringkey3 => ["someString"]
The output written to file will be on one line, here is the formatted output:
[{
"Key": "StringKeyofDictionary1",
"Value": ["abc",
"def",
"ghi"]
},
{
"Key": "StringKeyofDictionary2",
"Value": ["String01",
"String02",
"String03",
"String04",
]
},
{
"Key": "Stringkey3",
"Value": ["SomeString"]
}]
Ok, here's a basic join query that gets the correct records:
int[] selectedRolesArr = GetSelectedRoles();
if( selectedRolesArr != null && selectedRolesArr.Length > 0 )
{
//this join version requires the use of distinct to prevent muliple records
//being returned for users with more than one company role.
IQueryable retVal = (from u in context.Users
join c in context.CompanyRolesToUsers
on u.Id equals c.UserId
where u.LastName.Contains( "fra" ) &&
selectedRolesArr.Contains( c.CompanyRoleId )
select u).Distinct();
}
But here's the code that most easily integrates with the algorithm that we already had in place:
int[] selectedRolesArr = GetSelectedRoles();
if ( useAnd )
{
predicateAnd = predicateAnd.And( u => (from c in context.CompanyRolesToUsers
where selectedRolesArr.Contains(c.CompanyRoleId)
select c.UserId).Contains(u.Id));
}
else
{
predicateOr = predicateOr.Or( u => (from c in context.CompanyRolesToUsers
where selectedRolesArr.Contains(c.CompanyRoleId)
select c.UserId).Contains(u.Id) );
}
which is thanks to a poster at the LINQtoSQL forum
this is probably about you don't entered correct dependency version. you can select correct dependency from this:
file>menu>project structure>app>dependencies>+>Library Dependency>select any thing you need > OK
if cannot find your needs you should update your sdk from below way:
tools>android>sdk manager>sdk update>select any thing you need>ok
The .table td
's text-align is set to left, rather than center.
Adding this should center all your td
s:
.table td {
text-align: center;
}
@import url('https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css');_x000D_
table,_x000D_
thead,_x000D_
tr,_x000D_
tbody,_x000D_
th,_x000D_
td {_x000D_
text-align: center;_x000D_
}_x000D_
_x000D_
.table td {_x000D_
text-align: center;_x000D_
}
_x000D_
<table class="table">_x000D_
<thead>_x000D_
<tr>_x000D_
<th>1</th>_x000D_
<th>1</th>_x000D_
<th>1</th>_x000D_
<th>1</th>_x000D_
<th>2</th>_x000D_
<th>2</th>_x000D_
<th>2</th>_x000D_
<th>2</th>_x000D_
<th>3</th>_x000D_
<th>3</th>_x000D_
<th>3</th>_x000D_
<th>3</th>_x000D_
</tr>_x000D_
</thead>_x000D_
<tbody>_x000D_
<tr>_x000D_
<td colspan="4">Lorem</td>_x000D_
<td colspan="4">ipsum</td>_x000D_
<td colspan="4">dolor</td>_x000D_
</tr>_x000D_
</tbody>_x000D_
</table>
_x000D_
Yes.
Constructors are nothing more than special methods, and can throw exceptions like any other method.
What is the difference between
sorted(list)
vslist.sort()
?
list.sort
mutates the list in-place & returns None
sorted
takes any iterable & returns a new list, sorted.sorted
is equivalent to this Python implementation, but the CPython builtin function should run measurably faster as it is written in C:
def sorted(iterable, key=None):
new_list = list(iterable) # make a new list
new_list.sort(key=key) # sort it
return new_list # return it
when to use which?
list.sort
when you do not wish to retain the original sort order
(Thus you will be able to reuse the list in-place in memory.) and when
you are the sole owner of the list (if the list is shared by other code
and you mutate it, you could introduce bugs where that list is used.)sorted
when you want to retain the original sort order or when you
wish to create a new list that only your local code owns.Can a list's original positions be retrieved after list.sort()?
No - unless you made a copy yourself, that information is lost because the sort is done in-place.
"And which is faster? And how much faster?"
To illustrate the penalty of creating a new list, use the timeit module, here's our setup:
import timeit
setup = """
import random
lists = [list(range(10000)) for _ in range(1000)] # list of lists
for l in lists:
random.shuffle(l) # shuffle each list
shuffled_iter = iter(lists) # wrap as iterator so next() yields one at a time
"""
And here's our results for a list of randomly arranged 10000 integers, as we can see here, we've disproven an older list creation expense myth:
Python 2.7
>>> timeit.repeat("next(shuffled_iter).sort()", setup=setup, number = 1000)
[3.75168503401801, 3.7473005310166627, 3.753129180986434]
>>> timeit.repeat("sorted(next(shuffled_iter))", setup=setup, number = 1000)
[3.702025591977872, 3.709248117986135, 3.71071034099441]
Python 3
>>> timeit.repeat("next(shuffled_iter).sort()", setup=setup, number = 1000)
[2.797430992126465, 2.796825885772705, 2.7744789123535156]
>>> timeit.repeat("sorted(next(shuffled_iter))", setup=setup, number = 1000)
[2.675589084625244, 2.8019039630889893, 2.849375009536743]
After some feedback, I decided another test would be desirable with different characteristics. Here I provide the same randomly ordered list of 100,000 in length for each iteration 1,000 times.
import timeit
setup = """
import random
random.seed(0)
lst = list(range(100000))
random.shuffle(lst)
"""
I interpret this larger sort's difference coming from the copying mentioned by Martijn, but it does not dominate to the point stated in the older more popular answer here, here the increase in time is only about 10%
>>> timeit.repeat("lst[:].sort()", setup=setup, number = 10000)
[572.919036605, 573.1384446719999, 568.5923951]
>>> timeit.repeat("sorted(lst[:])", setup=setup, number = 10000)
[647.0584738299999, 653.4040515829997, 657.9457361929999]
I also ran the above on a much smaller sort, and saw that the new sorted
copy version still takes about 2% longer running time on a sort of 1000 length.
Poke ran his own code as well, here's the code:
setup = '''
import random
random.seed(12122353453462456)
lst = list(range({length}))
random.shuffle(lst)
lists = [lst[:] for _ in range({repeats})]
it = iter(lists)
'''
t1 = 'l = next(it); l.sort()'
t2 = 'l = next(it); sorted(l)'
length = 10 ** 7
repeats = 10 ** 2
print(length, repeats)
for t in t1, t2:
print(t)
print(timeit(t, setup=setup.format(length=length, repeats=repeats), number=repeats))
He found for 1000000 length sort, (ran 100 times) a similar result, but only about a 5% increase in time, here's the output:
10000000 100
l = next(it); l.sort()
610.5015971539542
l = next(it); sorted(l)
646.7786222379655
A large sized list being sorted with sorted
making a copy will likely dominate differences, but the sorting itself dominates the operation, and organizing your code around these differences would be premature optimization. I would use sorted
when I need a new sorted list of the data, and I would use list.sort
when I need to sort a list in-place, and let that determine my usage.
The best way to work with args for your winforms app is to use
string[] args = Environment.GetCommandLineArgs();
You can probably couple this with the use of an enum to solidify the use of the array througout your code base.
"And you can use this anywhere in your application, you aren’t just restricted to using it in the main() method like in a console application."
Found at:HERE
It is an alternative way to check equality of array lists which can contain null values:
List listA = Arrays.asList(null, "b", "c");
List listB = Arrays.asList("b", "c", null);
System.out.println(checkEquality(listA, listB)); // will return TRUE
private List<String> getSortedArrayList(List<String> arrayList)
{
String[] array = arrayList.toArray(new String[arrayList.size()]);
Arrays.sort(array, new Comparator<String>()
{
@Override
public int compare(String o1, String o2)
{
if (o1 == null && o2 == null)
{
return 0;
}
if (o1 == null)
{
return 1;
}
if (o2 == null)
{
return -1;
}
return o1.compareTo(o2);
}
});
return new ArrayList(Arrays.asList(array));
}
private Boolean checkEquality(List<String> listA, List<String> listB)
{
listA = getSortedArrayList(listA);
listB = getSortedArrayList(listB);
String[] arrayA = listA.toArray(new String[listA.size()]);
String[] arrayB = listB.toArray(new String[listB.size()]);
return Arrays.deepEquals(arrayA, arrayB);
}
public static T DeserializeFromXml<T>(string xml)
{
T result;
XmlSerializerFactory serializerFactory = new XmlSerializerFactory();
XmlSerializer serializer =serializerFactory.CreateSerializer(typeof(T));
using (StringReader sr3 = new StringReader(xml))
{
XmlReaderSettings settings = new XmlReaderSettings()
{
CheckCharacters = false // default value is true;
};
using (XmlReader xr3 = XmlTextReader.Create(sr3, settings))
{
result = (T)serializer.Deserialize(xr3);
}
}
return result;
}
getent group <groupname>;
It is portable across both Linux and Solaris, and it works with local group/password files, NIS, and LDAP configurations.
See,
There are two ways to convert an RDD to DF in Spark.
toDF()
and createDataFrame(rdd, schema)
I will show you how you can do that dynamically.
The toDF()
command gives you the way to convert an RDD[Row]
to a Dataframe. The point is, the object Row()
can receive a **kwargs
argument. So, there is an easy way to do that.
from pyspark.sql.types import Row
#here you are going to create a function
def f(x):
d = {}
for i in range(len(x)):
d[str(i)] = x[i]
return d
#Now populate that
df = rdd.map(lambda x: Row(**f(x))).toDF()
This way you are going to be able to create a dataframe dynamically.
Other way to do that is creating a dynamic schema. How?
This way:
from pyspark.sql.types import StructType
from pyspark.sql.types import StructField
from pyspark.sql.types import StringType
schema = StructType([StructField(str(i), StringType(), True) for i in range(32)])
df = sqlContext.createDataFrame(rdd, schema)
This second way is cleaner to do that...
So this is how you can create dataframes dynamically.
Here is a heavy tutorial that has good stuff in it to pick out:
http://mobile.tutsplus.com/tutorials/mobile-web-apps/jquery_android/
If you are using RestTemplateBuilder
may be the usual thing wouldn't work. You need to add this in your test class along with when(condition).
@Before
public void setup() {
ReflectionTestUtils.setField(service, "restTemplate", restTemplate);
}
I am almost sure you are not actually getting it installed correctly. Since you are trying to install it globally, you will need to run it with sudo:
sudo npm install -g bower
In a comment on @paxdiablo's answer, you asked:
"So basically, is it better to use Double than Float?"
That is a complicated question. I will deal with it in two parts
double
versus float
On the one hand, a double
occupies 8 bytes versus 4 bytes for a float
. If you have many of them, this may be significant, though it may also have no impact. (Consider the case where the values are in fields or local variables on a 64bit machine, and the JVM aligns them on 64 bit boundaries.) Additionally, floating point arithmetic with double
values is typically slower than with float
values ... though once again this is hardware dependent.
On the other hand, a double
can represent larger (and smaller) numbers than a float
and can represent them with more than twice the precision. For the details, refer to Wikipedia.
The tricky question is knowing whether you actually need the extra range and precision of a double
. In some cases it is obvious that you need it. In others it is not so obvious. For instance if you are doing calculations such as inverting a matrix or calculating a standard deviation, the extra precision may be critical. On the other hand, in some cases not even double
is going to give you enough precision. (And beware of the trap of expecting float
and double
to give you an exact representation. They won't and they can't!)
There is a branch of mathematics called Numerical Analysis that deals with the effects of rounding error, etc in practical numerical calculations. It used to be a standard part of computer science courses ... back in the 1970's.
Double
versus Float
For the Double
versus Float
case, the issues of precision and range are the same as for double
versus float
, but the relative performance measures will be slightly different.
A Double
(on a 32 bit machine) typically takes 16 bytes + 4 bytes for the reference, compared with 12 + 4 bytes for a Float
. Compare this to 8 bytes versus 4 bytes for the double
versus float
case. So the ratio is 5 to 4 versus 2 to 1.
Arithmetic involving Double
and Float
typically involves dereferencing the pointer and creating a new object to hold the result (depending on the circumstances). These extra overheads also affect the ratios in favor of the Double
case.
Having said all that, the most important thing is correctness, and this typically means getting the most accurate answer. And even if accuracy is not critical, it is usually not wrong to be "too accurate". So, the simple "rule of thumb" is to use double
in preference to float
, UNLESS there is an overriding performance requirement, AND you have solid evidence that using float
will make a difference with respect to that requirement.
A bit late, but maybe someone finds it useful.
For me, ISNULL was out of question due to the table scan. UNION ALL would need me to repeat a complex query, and due to me selecting only the TOP X it would not have been very efficient.
If you are able to change the table design, you can:
Add another field, just for sorting, such as Next_Contact_Date_Sort.
Create a trigger that fills that field with a large (or small) value, depending on what you need:
CREATE TRIGGER FILL_SORTABLE_DATE ON YOUR_TABLE AFTER INSERT,UPDATE AS
BEGIN
SET NOCOUNT ON;
IF (update(Next_Contact_Date)) BEGIN
UPDATE YOUR_TABLE SET Next_Contact_Date_Sort=IIF(YOUR_TABLE.Next_Contact_Date IS NULL, 99/99/9999, YOUR_TABLE.Next_Contact_Date_Sort) FROM inserted i WHERE YOUR_TABLE.key1=i.key1 AND YOUR_TABLE.key2=i.key2
END
END
Quoting directly from the help page for factor
:
To transform a factor f to its original numeric values, as.numeric(levels(f))[f]
is recommended and slightly more efficient than as.numeric(as.character(f))
.
The best way is to use the ng-options
directive on the select
element.
Controller
function Ctrl($scope) {
// sort options
$scope.products = [{
value: 'prod_1',
label: 'Product 1'
}, {
value: 'prod_2',
label: 'Product 2'
}];
}
HTML
<select ng-model="selected_product"
ng-options="product as product.label for product in products">
</select>
This will bind the selected product
object to the ng-model
property - selected_product
. After that you can use this:
<p>Ordered by: {{selected_product.label}}</p>
jsFiddle: http://jsfiddle.net/bmleite/2qfSB/
EDIT 2015 May
Disclaimer: I've taken the snippet from the answer linked below:
In addition to WebKit, as of Firefox 35 we'll be able to use the appearance
property:
Using
-moz-appearance
with thenone
value on a combobox now remove the dropdown button
So now in order to hide the default styling, it's as easy as adding the following rules on our select element:
select {
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
}
For IE 11 support, you can use [::-ms-expand
][15].
select::-ms-expand { /* for IE 11 */
display: none;
}
Old Answer
Unfortunately what you ask is not possible by using pure CSS. However, here is something similar that you can choose as a work around. Check the live code below.
div { _x000D_
margin: 10px;_x000D_
padding: 10px; _x000D_
border: 2px solid purple; _x000D_
width: 200px;_x000D_
-webkit-border-radius: 5px;_x000D_
-moz-border-radius: 5px;_x000D_
border-radius: 5px;_x000D_
}_x000D_
div > ul { display: none; }_x000D_
div:hover > ul {display: block; background: #f9f9f9; border-top: 1px solid purple;}_x000D_
div:hover > ul > li { padding: 5px; border-bottom: 1px solid #4f4f4f;}_x000D_
div:hover > ul > li:hover { background: white;}_x000D_
div:hover > ul > li:hover > a { color: red; }
_x000D_
<div>_x000D_
Select_x000D_
<ul>_x000D_
<li><a href="#">Item 1</a></li>_x000D_
<li><a href="#">Item 2</a></li>_x000D_
<li><a href="#">Item 3</a></li>_x000D_
</ul>_x000D_
</div>
_x000D_
EDIT
Here is the question that you asked some time ago. How to style a <select> dropdown with CSS only without JavaScript? As it tells there, only in Chrome and to some extent in Firefox you can achieve what you want. Otherwise, unfortunately, there is no cross browser pure CSS solution for styling a select.
I think this would serve as a simpler example of what you want to achieve. There is no need to use external tools. Bash built in tools can do the job for you.
function DOSOMETHING {
while test $# -gt 0; do
case "$1" in
-first)
shift
first_argument=$1
shift
;;
-last)
shift
last_argument=$1
shift
;;
*)
echo "$1 is not a recognized flag!"
return 1;
;;
esac
done
echo "First argument : $first_argument";
echo "Last argument : $last_argument";
}
This will allow you to use flags so no matter which order you are passing the parameters you will get the proper behavior.
Example :
DOSOMETHING -last "Adios" -first "Hola"
Output :
First argument : Hola
Last argument : Adios
You can add this function to your profile or put it inside of a script.
Thanks!
Edit :
Save this as a a file and then execute it as yourfile.sh -last "Adios" -first "Hola"
#!/bin/bash
while test $# -gt 0; do
case "$1" in
-first)
shift
first_argument=$1
shift
;;
-last)
shift
last_argument=$1
shift
;;
*)
echo "$1 is not a recognized flag!"
return 1;
;;
esac
done
echo "First argument : $first_argument";
echo "Last argument : $last_argument";
Swift4:
let key = "ccC2H19lDDbQDfakxcrtNMQdd0FloLGG" // length == 32
let iv = "ggGGHUiDD0Qjhuvv" // length == 16
func encryptFile(_ path: URL) -> Bool{
do{
let data = try Data.init(contentsOf: path)
let encodedData = try data.aesEncrypt(key: key, iv: iv)
try encodedData.write(to: path)
return true
}catch{
return false
}
}
func decryptFile(_ path: URL) -> Bool{
do{
let data = try Data.init(contentsOf: path)
let decodedData = try data.aesDecrypt(key: key, iv: iv)
try decodedData.write(to: path)
return true
}catch{
return false
}
}
Install CryptoSwift
import CryptoSwift
extension Data {
func aesEncrypt(key: String, iv: String) throws -> Data{
let encypted = try AES(key: key.bytes, blockMode: CBC(iv: iv.bytes), padding: .pkcs7).encrypt(self.bytes)
return Data(bytes: encypted)
}
func aesDecrypt(key: String, iv: String) throws -> Data {
let decrypted = try AES(key: key.bytes, blockMode: CBC(iv: iv.bytes), padding: .pkcs7).decrypt(self.bytes)
return Data(bytes: decrypted)
}
}
Button btnClear = (Button) findViewById(R.id.btnClear);
EditText editText1=(EditText) findViewById(R.id.editText2);
EditText editText2=(EditText) findViewById(R.id.editText3);
btnClear.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
editText1.setText("");
editText2.setText("");
editText1.requestFocus();
}
});
I have written a little JavaScript library called balanced to help with this task. You can accomplish this by doing
balanced.matches({
source: source,
open: '(',
close: ')'
});
You can even do replacements:
balanced.replacements({
source: source,
open: '(',
close: ')',
replace: function (source, head, tail) {
return head + source + tail;
}
});
Here's a more complex and interactive example JSFiddle.
The base64 encoding of Content-Type: multipart/form-data
adds an extra 33% overhead. If the server supports it, it is more efficient to send the files directly:
$http.post
Requests Directly from a FileList$scope.upload = function(url, fileList) {
var config = {
headers: { 'Content-Type': undefined },
transformResponse: angular.identity
};
var promises = fileList.map(function(file) {
return $http.post(url, file, config);
});
return $q.all(promises);
};
When sending a POST with a File object, it is important to set 'Content-Type': undefined
. The XHR send method will then detect the File object and automatically set the content type.
ng-model
1The <input type=file>
element does not by default work with the ng-model directive. It needs a custom directive:
angular.module("app",[]);
angular.module("app").directive("selectNgFiles", function() {
return {
require: "ngModel",
link: function postLink(scope,elem,attrs,ngModel) {
elem.on("change", function(e) {
var files = elem[0].files;
ngModel.$setViewValue(files);
})
}
}
});
_x000D_
<script src="//unpkg.com/angular/angular.js"></script>
<body ng-app="app">
<h1>AngularJS Input `type=file` Demo</h1>
<input type="file" select-ng-files ng-model="fileList" multiple>
<h2>Files</h2>
<div ng-repeat="file in fileList">
{{file.name}}
</div>
</body>
_x000D_
extension StringProtocol where Index == String.Index {
func nsRange(of string: String) -> NSRange? {
guard let range = self.range(of: string) else { return nil }
return NSRange(range, in: self)
}
}
There is a proposal open in GitHub for the C# language about having better support for raw string literals. One valid answer, is to encourage the C# team to add a new feature to the language (such as triple quote - like Python).
see https://github.com/dotnet/csharplang/discussions/89#discussioncomment-257343
Try this
$(function(){
$("input[type='number']").prop('min',1);
$("input[type='number']").prop('max',10);
});
Using .one
ensures this is done only once and not repeatedly.
$(window).one("focus", function() {
localStorage.clear();
});
It is okay to put several document.ready event listeners (if you need other events to execute multiple times) as long as you do not overdo it, for the sake of readability.
.one
is especially useful when you want local storage to be cleared only once the first time a web page is opened or when a mobile application is installed the first time.
// Fired once when document is ready
$(document).one('ready', function () {
localStorage.clear();
});
Try this:
var text = text.replace(/<script[^>]*>(?:(?!<\/script>)[^])*<\/script>/g, "")
<div class="foo">Foo Bar</div>
and in your CSS file:
.foo {
background-image: url("images/foo.png");
}
I was having the same issue, after i remove the repeat 0 0 part, it solved my problem.
The shortest version I found is to use the --cat
option of parallel
like below. This version avoids using xargs, only relying on features of parallel
:
cat files.txt | \
parallel -n 500 --lb --pipe --cat rsync --files-from={} user@remote:/dir /dir -avPi
#### Arg explainer
# -n 500 :: split input into chunks of 500 entries
#
# --cat :: create a tmp file referenced by {} containing the 500
# entry content for each process
#
# user@remote:/dir :: the root relative to which entries in files.txt are considered
#
# /dir :: local root relative to which files are copied
Sample content from files.txt
:
/dir/file-1
/dir/subdir/file-2
....
Note that this doesn't use -j 50
for job count, that didn't work on my end here. Instead I've used -n 500
for record count per job, calculated as a reasonable number given the total number of records.
No one said a pure xaml solution has to be complicated. Here's a simple one, with 1 data trigger on the text box. Margin and position as desired
<Grid>
<ComboBox x:Name="mybox" ItemsSource="{Binding}"/>
<TextBlock Text="Select Something" IsHitTestVisible="False">
<TextBlock.Style>
<Style TargetType="TextBlock">
<Setter Property="Visibility" Value="Hidden"/>
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=mybox,Path=SelectedItem}" Value="{x:Null}">
<Setter Property="Visibility" Value="Visible"/>
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
</Grid>
Though this isn't a DIRECT answer to your question, I just encountered a similar problem, and thought I'd mentioned it:
I had an instance where it was instantiating a new (no doubt very inefficent) record for data.frame (a result of recursive searching) and it was giving me the same error.
I had this:
return(
data.frame(
user_id = gift$email,
sourced_from_agent_id = gift$source,
method_used = method,
given_to = gift$account,
recurring_subscription_id = NULL,
notes = notes,
stringsAsFactors = FALSE
)
)
turns out... it was the = NULL. When I switched to = NA, it worked fine. Just in case anyone else with a similar problem hits THIS post as I did.
Syntax refers to the structure of a language, tracing its etymology to how things are put together.
For example you might require the code to be put together by declaring a type then a name and then a semicolon, to be syntactically correct.
Type token;
On the other hand, the semantics is about meaning. A compiler or interpreter could complain about syntax errors. Your co-workers will complain about semantics.
example of textarea for disable the resize option
<textarea CLASS="foo"></textarea>
<style>
textarea.foo
{
resize:none;
}
</style>
Actually I think using plain slices is the best solution in this case:
for i in range(0, len(data), 100):
chunk = data[i:i + 100]
...
If you want to avoid copying the slices, you could use itertools.islice()
, but it doesn't seem to be necessary here.
The itertools()
documentation also contains the famous "grouper" pattern:
def grouper(n, iterable, fillvalue=None):
"grouper(3, 'ABCDEFG', 'x') --> ABC DEF Gxx"
args = [iter(iterable)] * n
return izip_longest(fillvalue=fillvalue, *args)
You would need to modify it to treat the last chunk correctly, so I think the straight-forward solution using plain slices is preferable.
You're looking for the cunningly named Registry.GetValue
method.
We run jenkins from the .war file with the following command.
java -Xmx2500M -jar jenkins.war --httpPort=3333 --prefix=/jenkins
You can even run the command from the ~/Downloads directory
It's quite unclear how you are computing the size ("the size in debug mode"?").
Use printf()
:
printf("the size of c is %u\n", (unsigned int) sizeof c);
Normally you'd print a size_t
value (which is the type sizeof
returns) with %zu
, but if you're using a pre-C99 compiler like Visual Studio that won't work.
You need to find the typedef
statements in your code that define the custom names like uint8
and so on; those are not standard so nobody here can know how they're defined in your code.
New C code should use <stdint.h>
which gives you uint8_t
and so on.
/*
Returns the current time.
*/
char *time_stamp(){
char *timestamp = (char *)malloc(sizeof(char) * 16);
time_t ltime;
ltime=time(NULL);
struct tm *tm;
tm=localtime(<ime);
sprintf(timestamp,"%04d%02d%02d%02d%02d%02d", tm->tm_year+1900, tm->tm_mon,
tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
return timestamp;
}
int main(){
printf(" Timestamp: %s\n",time_stamp());
return 0;
}
Output: Timestamp: 20110912130940 // 2011 Sep 12 13:09:40
A simple loop should be working:
for file in /var/*
do
#whatever you need with "$file"
done
In the original example, why not use the select() method in your database query?
$name = DB::table('users')->where('name', 'John')->select("id");
This will be faster than using a PHP framework, for it'll utilize the SQL query to do the row selection for you. For ordinary collections, I don't believe this applies, but since you're using a database...
Larvel 5.3: Specifying a Select Clause
You can download in the current directory with a .
:
cd # by default, goes to $HOME
scp me@host:/path/to/file .
or in you HOME
directly with :
scp me@host:/path/to/file ~