This should work:
dists[((dists >= r) & (dists <= r+dr))]
The most elegant way~~
Even your question is answered, still i want tell more entities same like this.
These are html entities
, so in android you will write them like:
Replace below with:
& with &
> with >
< with <
" with ", “ or ”
' with ', ‘ or ’
} with }
I am not sure it's possible with an "automatic" variable. You can always declare one for yourself and increment it:
$letters = { 'A', 'B', 'C' }
$letters | % {$counter = 0}{...;$counter++}
Or use a for
loop instead...
for ($counter=0; $counter -lt $letters.Length; $counter++){...}
I had trouble with this using matplotlib version: 2.0.2. Running the example from above I got a centered stacked set of bubbles.
I "fixed" the problem by adding another line:
plt.plot([],[])
The entire code snippet becomes:
import datetime
import random
import matplotlib.pyplot as plt
import matplotlib.dates as mdates
# make up some data
x = [datetime.datetime.now() + datetime.timedelta(minutes=i) for i in range(12)]
y = [i+random.gauss(0,1) for i,_ in enumerate(x)]
# plot
plt.plot([],[])
plt.scatter(x,y)
# beautify the x-labels
plt.gcf().autofmt_xdate()
myFmt = mdates.DateFormatter('%H:%M')
plt.gca().xaxis.set_major_formatter(myFmt)
plt.show()
plt.close()
This produces an image with the bubbles distributed as desired.
The data containing the date column can be read by using the below code:
data = pd.csv(file_path,parse_dates=[date_column])
Once the data is read by using the above line of code, the column containing the information about the date can be accessed using pd.date_time()
like:
pd.date_time(data[date_column], format = '%d/%m/%y')
to change the format of date as per the requirement.
The following solution worked for me. It involves copy pasting the .dll and .pdb files properly from project A to B: https://stackoverflow.com/a/16546777/5351410
you must changes in $watch ....
function MyController($scope) {_x000D_
$scope.form = {_x000D_
name: 'my name',_x000D_
}_x000D_
_x000D_
$scope.$watch('form.name', function(newVal, oldVal){_x000D_
console.log('changed');_x000D_
_x000D_
});_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.22/angular.min.js"></script>_x000D_
<div ng-app>_x000D_
<div ng-controller="MyController">_x000D_
<label>Name:</label> <input type="text" ng-model="form.name"/>_x000D_
_x000D_
<pre>_x000D_
{{ form }}_x000D_
</pre>_x000D_
</div>_x000D_
</div>
_x000D_
We had a similar situation. We were using Mysql 5.7.
CREATE TABLE my_table (
...
updated_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
);
This worked for us.
In my case TOP LEVEL EXCEPTION was throw because of a special char in project path. Just closed the project, changed "á" to "a" and reopened the project. Works!
You can do this using Input.setSelectionRange
, part of the Range API for interacting with text selections and the text cursor:
var searchInput = $('#Search');
// Multiply by 2 to ensure the cursor always ends up at the end;
// Opera sometimes sees a carriage return as 2 characters.
var strLength = searchInput.val().length * 2;
searchInput.focus();
searchInput[0].setSelectionRange(strLength, strLength);
Demo: Fiddle
Step 1: Open plugin manager in notepad++
Plugins -> Plugin Manager -> Show Plugin Manager.
Step 2:install XML Tool plugin
Search "XML TOOLS" from the "Available" option then click in install.
Now you can use shortcut key CTRL+ALT+SHIFT+B to indent the code.
Do something if column is not existing:
BEGIN
IF (COL_LENGTH('[dbo].[Table]', 'Column ') IS NULL)
BEGIN
//Do something
END
END;
Do something if column is existing:
BEGIN
IF (COL_LENGTH('[dbo].[Table]', 'Column ') IS NOT NULL)
BEGIN
//Do something
END
END;
Whenever you use
export someobject
and someobject is
{
"prop1":"Property1",
"prop2":"Property2",
}
the above you can import anywhere using import
or module.js
and there you can use someobject. This is not a restriction that someobject will be an object only it can be a function too, a class or an object.
When you say
new Object()
like you said
new Vue({
el: '#app',
data: []
)}
Here you are initiating an object of class Vue.
I hope my answer explains your query in general and more explicitly.
Simply add below param to your spark-shell OR spark-submit command
--conf "spark.driver.extraJavaOptions=-Dlog4jspark.root.logger=WARN,console"
Check exact property name (log4jspark.root.logger here) from log4j.properties file. Hope this helps, cheers!
Unfortunately, none of the above answers worked for me, although all answers lead to the solution and eventually to my solution, here is the snippet if it helps someone. Thanks
This can be solved with the bash file, due to the layered architecture of the Docker, cron service doesn't get initiated with RUN/CMD/ENTRYPOINT commands.
Simply add a bash file which will initiate the cron and other services (if required)
DockerFile
FROM gradle:6.5.1-jdk11 AS build
# apt
RUN apt-get update
RUN apt-get -y install cron
# Setup cron to run every minute to print (you can add/update your cron here)
RUN touch /var/log/cron-1.log
RUN (crontab -l ; echo "* * * * * echo testing cron.... >> /var/log/cron-1.log 2>&1") | crontab
# entrypoint.sh
RUN chmod +x entrypoint.sh
CMD ["bash","entrypoint.sh"]
entrypoint.sh
#!/bin/sh
service cron start & tail -f /var/log/cron-2.log
If any other service is also required to run along with cron then add that service with &
in the same command, for example: /opt/wildfly/bin/standalone.sh & service cron start & tail -f /var/log/cron-2.log
Once you will get into the docker container there you can see that testing cron....
will be getting printed every minute in file: /var/log/cron-1.log
SilverSkin and Anders are both correct. You can use parentheses to execute multiple commands. However, you have to make sure that the commands themselves (and their parameters) do not contain parentheses. cmd
greedily searches for the first closing parenthesis, instead of handling nested sets of parentheses gracefully. This may cause the rest of the command line to fail to parse, or it may cause some of the parentheses to get passed to the commands (e.g. DEL myfile.txt)
).
A workaround for this is to split the body of the loop into a separate function. Note that you probably need to jump around the function body to avoid "falling through" into it.
FOR /r %%X IN (*.txt) DO CALL :loopbody %%X
REM Don't "fall through" to :loopbody.
GOTO :EOF
:loopbody
ECHO %1
DEL %1
GOTO :EOF
Global variables certainly do exist in GAS, but you must understand the client/server relationship of the environment in order to use them correctly - please see this question: Global variables in Google Script (spreadsheet)
However this is not the problem with your code; the documentation indicates that the function to be executed by the menu must be supplied to the method as a string, right now you are supplying the output of the function: https://developers.google.com/apps-script/reference/spreadsheet/spreadsheet#addMenu%28String,Object%29
function MainMenu_Init() {
Logger.log('init');
};
function onOpen() {
var spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
var menus = [{
name: "Init",
functionName: "MainMenu_Init"
}];
spreadsheet.addMenu("Test", menus);
};
Typing q
starts macro recording, and the recording stops when the user hits q
again.
As Joey Adams mentioned, to disable recording, add the following line to .vimrc
in your home directory:
map q <Nop>
You could use a map function that allows multiple arguments, as does the fork of multiprocessing
found in pathos
.
>>> from pathos.multiprocessing import ProcessingPool as Pool
>>>
>>> def add_and_subtract(x,y):
... return x+y, x-y
...
>>> res = Pool().map(add_and_subtract, range(0,20,2), range(-5,5,1))
>>> res
[(-5, 5), (-2, 6), (1, 7), (4, 8), (7, 9), (10, 10), (13, 11), (16, 12), (19, 13), (22, 14)]
>>> Pool().map(add_and_subtract, *zip(*res))
[(0, -10), (4, -8), (8, -6), (12, -4), (16, -2), (20, 0), (24, 2), (28, 4), (32, 6), (36, 8)]
pathos
enables you to easily nest hierarchical parallel maps with multiple inputs, so we can extend our example to demonstrate that.
>>> from pathos.multiprocessing import ThreadingPool as TPool
>>>
>>> res = TPool().amap(add_and_subtract, *zip(*Pool().map(add_and_subtract, range(0,20,2), range(-5,5,1))))
>>> res.get()
[(0, -10), (4, -8), (8, -6), (12, -4), (16, -2), (20, 0), (24, 2), (28, 4), (32, 6), (36, 8)]
Even more fun, is to build a nested function that we can pass into the Pool.
This is possible because pathos
uses dill
, which can serialize almost anything in python.
>>> def build_fun_things(f, g):
... def do_fun_things(x, y):
... return f(x,y), g(x,y)
... return do_fun_things
...
>>> def add(x,y):
... return x+y
...
>>> def sub(x,y):
... return x-y
...
>>> neato = build_fun_things(add, sub)
>>>
>>> res = TPool().imap(neato, *zip(*Pool().map(neato, range(0,20,2), range(-5,5,1))))
>>> list(res)
[(0, -10), (4, -8), (8, -6), (12, -4), (16, -2), (20, 0), (24, 2), (28, 4), (32, 6), (36, 8)]
If you are not able to go outside of the standard library, however, you will have to do this another way. Your best bet in that case is to use multiprocessing.starmap
as seen here: Python multiprocessing pool.map for multiple arguments (noted by @Roberto in the comments on the OP's post)
Get pathos
here: https://github.com/uqfoundation
You have to maintain the serial how many times you are accessing the array.Use like this
int lookUpTime=0;
for(int i=lookUpTime;i<lookUpTime+2 && i<elements.length();i++)
{
// do something with elements[i]
}
lookUpTime++;
Use this syntax:
obj[name]
Note that obj.x
is the same as obj["x"]
for all valid JS identifiers, but the latter form accepts all string as keys (not just valid identifiers).
obj["Hey, this is ... neat?"] = 42
For other Beginners (like myself) If you are on windows running git as admin also solves the problem.
Dynamic resources can only be used when property being set is on object which is derived from dependency object or freezable where as static resources can be used anywhere. You can abstract away entire control using static resources.
Static resources are used under following circumstances:
Dynamic resources:
We use these settings:
etc/my.cnf
innodb_buffer_pool_size = 384M
key_buffer = 256M
query_cache_size = 1M
query_cache_limit = 128M
thread_cache_size = 8
max_connections = 400
innodb_lock_wait_timeout = 100
for a server with the following specifications:
Dell Server
CPU cores: Two
Processor(s): 1x Dual Xeon
Clock Speed: >= 2.33GHz
RAM: 2 GBytes
Disks: 1×250 GB SATA
This works for me:
git rm -r --cached --ignore-unmatch folder_name
--ignore-unmatch
is important here, without that option git will exit with error on the first file not in the index.
the bast way i use i bind the textblock and combobox to same property and this property should support notifyPropertyChanged.
i used relativeresource to bind to parent view datacontext which is usercontrol to go up datagrid level in binding because in this case the datagrid will search in object that you used in datagrid.itemsource
<DataGridTemplateColumn Header="your_columnName">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding RelativeSource={RelativeSource AncestorType={x:Type UserControl}}, Path=DataContext.SelectedUnit.Name, Mode=TwoWay}" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
<DataGridTemplateColumn.CellEditingTemplate>
<DataTemplate>
<ComboBox DisplayMemberPath="Name"
IsEditable="True"
ItemsSource="{Binding RelativeSource={RelativeSource AncestorType={x:Type UserControl}}, Path=DataContext.UnitLookupCollection}"
SelectedItem="{Binding RelativeSource={RelativeSource AncestorType={x:Type UserControl}}, Path=DataContext.SelectedUnit, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
SelectedValue="{Binding UnitId, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
SelectedValuePath="Id" />
</DataTemplate>
</DataGridTemplateColumn.CellEditingTemplate>
</DataGridTemplateColumn>
A declaration introduces an identifier and describes its type, be it a type, object, or function. A declaration is what the compiler needs to accept references to that identifier. These are declarations:
extern int bar;
extern int g(int, int);
double f(int, double); // extern can be omitted for function declarations
class foo; // no extern allowed for type declarations
A definition actually instantiates/implements this identifier. It's what the linker needs in order to link references to those entities. These are definitions corresponding to the above declarations:
int bar;
int g(int lhs, int rhs) {return lhs*rhs;}
double f(int i, double d) {return i+d;}
class foo {};
A definition can be used in the place of a declaration.
An identifier can be declared as often as you want. Thus, the following is legal in C and C++:
double f(int, double);
double f(int, double);
extern double f(int, double); // the same as the two above
extern double f(int, double);
However, it must be defined exactly once. If you forget to define something that's been declared and referenced somewhere, then the linker doesn't know what to link references to and complains about a missing symbols. If you define something more than once, then the linker doesn't know which of the definitions to link references to and complains about duplicated symbols.
Since the debate what is a class declaration vs. a class definition in C++ keeps coming up (in answers and comments to other questions) , I'll paste a quote from the C++ standard here.
At 3.1/2, C++03 says:
A declaration is a definition unless it [...] is a class name declaration [...].
3.1/3 then gives a few examples. Amongst them:
[Example: [...] struct S { int a; int b; }; // defines S, S::a, and S::b [...] struct S; // declares S —end example
To sum it up: The C++ standard considers struct x;
to be a declaration and struct x {};
a definition. (In other words, "forward declaration" a misnomer, since there are no other forms of class declarations in C++.)
Thanks to litb (Johannes Schaub) who dug out the actual chapter and verse in one of his answers.
document.querySelectorAll
works pretty well and allows you to further narrow down your selection.
https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelectorAll
If you happen to be using the venv module that comes with Python 3.3+, it supports an --upgrade
option.
Per the docs:
Upgrade the environment directory to use this version of Python, assuming Python has been upgraded in-place
python3 -m venv --upgrade ENV_DIR
Very first will declare outer Arraylist which will contain another inner Arraylist inside it
ArrayList> CompletesystemStatusArrayList; ArrayList systemStatusArrayList
CompletesystemStatusArrayList=new ArrayList
systemStatusArrayList=new ArrayList();
systemStatusArrayList.add("1");
systemStatusArrayList.add("2");
systemStatusArrayList.add("3");
systemStatusArrayList.add("4");
systemStatusArrayList.add("5");
systemStatusArrayList.add("6");
systemStatusArrayList.add("7");
systemStatusArrayList.add("8");
CompletesystemStatusArrayList.add(systemStatusArrayList);
There is a solution for the duplicate entry in listview.
You have to declare the onBackPress()
-method on your activity and write down the highlight code given below:
@Override
public void onBackPressed() {
// TODO Auto-generated method stub
super.onBackPressed();
**
attendence_webdata.clear(); list.setAdapter(null);
--------------------------------------------------
**
}
How about using strtr()
to substitute all of your other delimiters with the first one?
private function multiExplode($delimiters,$string) {
return explode(
$delimiters[0],
strtr(
$string,
array_combine(
array_slice( $delimiters, 1 ),
array_fill(
0,
count($delimiters)-1,
array_shift($delimiters)
)
)
)
);
}
It's sort of unreadable, I guess, but I tested it as working over here.
One-liners ftw!
In my experience, it's just a matter of iteration. Put your data and code wherever you think they go. Chances are, you'll be wrong anyway. But once you get a better idea of exactly how things are going to shape up, you're in a much better position to make these kinds of guesses.
As far as extension sources, we have a Code directory under trunk that contains a directory for python and a directory for various other languages. Personally, I'm more inclined to try putting any extension code into its own repository next time around.
With that said, I go back to my initial point: don't make too big a deal out of it. Put it somewhere that seems to work for you. If you find something that doesn't work, it can (and should) be changed.
To read in an Unicode string and then send to HTML, I did this:
fileline.decode("utf-8").encode('ascii', 'xmlcharrefreplace')
Useful for python powered http servers.
I hope you will find this useful.
$query1="SELECT TIMESTAMPDIFF (YEAR, YOUR_DOB_COLUMN, CURDATE()) AS age FROM your_table WHERE id='$user_id'";
$res1=mysql_query($query1);
$row=mysql_fetch_array($res1);
echo $row['age'];
Just solved this problem. In my case it was domain controller is not accessible, because both dns servers was google dns.
I just add to checklist for this problem:
find
is the common tool for this kind of task :
find ./my_dir -mtime +10 -type f -delete
EXPLANATIONS
./my_dir
your directory (replace with your own)-mtime +10
older than 10 days-type f
only files-delete
no surprise. Remove it to test your find
filter before executing the whole commandAnd take care that ./my_dir
exists to avoid bad surprises !
You need to change
onclick='btnClick();'
to
onclick='return btnClick();'
and
cancelFormSubmission();
to
return false;
That said, I'd try to avoid the intrinsic event attributes in favour of unobtrusive JS with a library (such as YUI or jQuery) that has a good event handling API and tie into the event that really matters (i.e. the form's submit event instead of the button's click event).
This is an even later response to @gniourf_gniourf's late answer, which I just upvoted because it's by far the best answer, twice over. (Once for avoiding eval
and once for safe filename handling.)
But it took me a few minutes to untangle the "not very well documented" feature(s) this answer uses. If your Bash skills are solid enough that you saw immediately how it works, then skip this comment. But I didn't, and having untangled it I think it's worth explaining.
Feature #1 is the shell's own file globbing. a=(*)
creates an array, $a
, whose members are the files in the current directory. Bash understands all the weirdnesses of filenames, so that list is guaranteed correct, guaranteed escaped, etc. No need to worry about properly parsing textual file names returned by ls
.
Feature #2 is Bash parameter expansions for arrays, one nested within another. This starts with ${#ARRAY[@]}
, which expands to the length of $ARRAY
.
That expansion is then used to subscript the array. The standard way to find a random number between 1 and N is to take the value of random number modulo N. We want a random number between 0 and the length of our array. Here's the approach, broken into two lines for clarity's sake:
LENGTH=${#ARRAY[@]}
RANDOM=${a[RANDOM%$LENGTH]}
But this solution does it in a single line, removing the unnecessary variable assignment.
Feature #3 is Bash brace expansion, although I have to confess I don't entirely understand it. Brace expansion is used, for instance, to generate a list of 25 files named filename1.txt
, filename2.txt
, etc: echo "filename"{1..25}".txt"
.
The expression inside the subshell above, "${a[RANDOM%${#a[@]}]"{1..42}"}"
, uses that trick to produce 42 separate expansions. The brace expansion places a single digit in between the ]
and the }
, which at first I thought was subscripting the array, but if so it would be preceded by a colon. (It would also have returned 42 consecutive items from a random spot in the array, which is not at all the same thing as returning 42 random items from the array.) I think it's just making the shell run the expansion 42 times, thereby returning 42 random items from the array. (But if someone can explain it more fully, I'd love to hear it.)
The reason N has to be hardcoded (to 42) is that brace expansion happens before variable expansion.
Finally, here's Feature #4, if you want to do this recursively for a directory hierarchy:
shopt -s globstar
a=( ** )
This turns on a shell option that causes **
to match recursively. Now your $a
array contains every file in the entire hierarchy.
You can also read lines w/o loop. Works in python3.6.
import os
import subprocess
process = subprocess.Popen(command, stdout=subprocess.PIPE)
list_of_byte_strings = process.stdout.readlines()
It lets you handle Many to Many relationship. Example:
Table 1: post
post has following columns
____________________
| ID | DATE |
|_________|_________|
| | |
|_________|_________|
Table 2: user
user has the following columns:
____________________
| ID |NAME |
|_________|_________|
| | |
|_________|_________|
Join Table lets you create a mapping using:
@JoinTable(
name="USER_POST",
joinColumns=@JoinColumn(name="USER_ID", referencedColumnName="ID"),
inverseJoinColumns=@JoinColumn(name="POST_ID", referencedColumnName="ID"))
will create a table:
____________________
| USER_ID| POST_ID |
|_________|_________|
| | |
|_________|_________|
You can do that in one line of CSS.
background: linear-gradient(to right, #3204fdba, #9907facc), url(https://picsum.photos/1280/853/?random=1) no-repeat top center;
Also hover on the color in VS Code, and click on the color to be a hex color, and you can change the colors opacity easy, instead of the rgba (rgba(48, 3, 252, 0.902), rgba(153, 7, 250, 0.902))
, It can be short to
(#3204fde6, #9907fae6)
header{
height: 100vh;
color: white;
font: bold 2em/2em monospace;
display: flex;
justify-content: center;
align-items: center;
background: linear-gradient(to right,#3204fdba, #9907facc), url(https://picsum.photos/1280/853/?random=1) no-repeat top center;
}
_x000D_
<header>is simply dummy text of the printing and<br> typesetting industry.</header>
_x000D_
See here CodePen
Update: in Rails 3.0.9: env method defined in railties/lib/rails.rb
This works great for large tables.
SELECT NUM_ROWS FROM ALL_TABLES WHERE TABLE_NAME = 'TABLE_NAME_IN_UPPERCASE';
For small to medium size tables, following will be ok.
SELECT COUNT(Primary_Key) FROM table_name;
Cheers,
The
||
operator is "concatenate" - it joins together the two strings of its operands.
From http://www.sqlite.org/lang_expr.html
For padding, the seemingly-cheater way I've used is to start with your target string, say '0000', concatenate '0000423', then substr(result, -4, 4) for '0423'.
Update: Looks like there is no native implementation of "lpad" or "rpad" in SQLite, but you can follow along (basically what I proposed) here: http://verysimple.com/2010/01/12/sqlite-lpad-rpad-function/
-- the statement below is almost the same as
-- select lpad(mycolumn,'0',10) from mytable
select substr('0000000000' || mycolumn, -10, 10) from mytable
-- the statement below is almost the same as
-- select rpad(mycolumn,'0',10) from mytable
select substr(mycolumn || '0000000000', 1, 10) from mytable
Here's how it looks:
SELECT col1 || '-' || substr('00'||col2, -2, 2) || '-' || substr('0000'||col3, -4, 4)
it yields
"A-01-0001"
"A-01-0002"
"A-12-0002"
"C-13-0002"
"B-11-0002"
Itemgetter lets you to sort by multiple criteria / columns:
sorted_list = sorted(list_to_sort, key=itemgetter(2,0,1))
I discovered this while experimenting with html2canvas this morning. While this doesn't include provisions for printing multiple pages it does scale the image to page width and reframes the height in ratio to the adjusted width:
html2canvas(document.getElementById('testdiv')).then(function(canvas){
var wid: number
var hgt: number
var img = canvas.toDataURL("image/png", wid = canvas.width, hgt = canvas.height);
var hratio = hgt/wid
var doc = new jsPDF('p','pt','a4');
var width = doc.internal.pageSize.width;
var height = width * hratio
doc.addImage(img,'JPEG',20,20, width, height);
doc.save('Test.pdf');
});
I am using 0.56RC secureTextEntry={true} Along with password={true} then only its working as mentioned by @NicholasByDesign
I had same issue I could resolved issue with replace 'localhost' with IP which is '0.0.0.0'
The server.contextPath or server.context-path works if
in pom.xml
Add following dependencies
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Tomcat/TC server -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
In eclipse, right click on project --> Run as --> Spring Boot App.
Android 9 and Android 11 emulators have support for arm binaries.
I had the same issue while using x86 emulator with API level 29, trying to install an apk targeting arm ABI.
I tried x86 emulator with API level 30 and it worked fine.
To check the class in Swift, use "is" (as explained under "checking Type" in the chapter called Type Casting in the Swift Programming Guide)
if self.window.rootViewController is MyViewController {
//do something if it's an instance of that class
}
sed -i 's/STRING_TO_REPLACE/STRING_TO_REPLACE_IT/g' index.html
This does a global in-place substitution on the file index.html. Quoting the string prevents problems with whitespace in the query and replacement.
You should now use the .on()
function to bind events.
From the PHP online documentation:
To explicitly convert a value to boolean, use the (bool) or (boolean) casts.
However, in most cases the cast is unncecessary, since a value will be automatically converted if an operator, function or control structure requires a boolean argument.
When converting to boolean, the following values are considered FALSE:
FALSE
itself 0.0
(zero) "0"
NULL
(including unset variables) TRUE
(including any resource). So, in most cases, it's the same.
On the other hand, the ===
and the ==
are not the same thing. Regularly, you just need the "equals" operator. To clarify:
$a == $b //Equal. TRUE if $a is equal to $b.
$a === $b //Identical. TRUE if $a is equal to $b, and they are of the same type.
For more information, check the "Comparison Operators" page in the PHP online docs.
Hope this helps.
There's different ways to access Camera Flash in different Android versions. Few APIs stopped working in Lollipop and then it got changed again in Marshmallow. To overcome this, I have created a simple library that I have been using in few of my projects and it's giving good results. It's still incomplete, but you can try to check the code and find the missing pieces. Here's the link - NoobCameraFlash.
If you just want to integrate in your code, you can use gradle for that. Here's the instructions (Taken directly from the Readme) -
Step 1. Add the JitPack repository to your build file. Add it in your root build.gradle at the end of repositories:
allprojects {
repositories {
...
maven { url "https://jitpack.io" }
}
}
Step 2. Add the dependency
dependencies {
compile 'com.github.Abhi347:NoobCameraFlash:0.0.1'
}
Initialize the NoobCameraManager
singleton.
NoobCameraManager.getInstance().init(this);
You can optionally set the Log Level for debug logging. Logging uses LumberJack library. The default LogLevel is LogLevel.None
NoobCameraManager.getInstance().init(this, LogLevel.Verbose);
After that you just need to call the singleton to turn on or off the camera flash.
NoobCameraManager.getInstance().turnOnFlash();
NoobCameraManager.getInstance().turnOffFlash();
You have to take care of the runtime permissions to access Camera yourself, before initializing the NoobCameraManager. In version 0.1.2 or earlier we used to provide support for permissions directly from the library, but due to dependency on the Activity object, we have to remove it.
It's easy to toggle Flash too
if(NoobCameraManager.getInstance().isFlashOn()){
NoobCameraManager.getInstance().turnOffFlash();
}else{
NoobCameraManager.getInstance().turnOnFlash();
}
Simple sorting algorithm Bubble sort:
public static void main(String[] args) {
int[] arr = new int[] { 6, 8, 7, 4, 312, 78, 54, 9, 12, 100, 89, 74 };
for (int i = 0; i < arr.length; i++) {
for (int j = i + 1; j < arr.length; j++) {
int tmp = 0;
if (arr[i] > arr[j]) {
tmp = arr[i];
arr[i] = arr[j];
arr[j] = tmp;
}
}
}
}
One way to do it is to set the image you want to display as a background in a container (td, div, span etc) and then adjust background-position to get the sprite you want.
You can try:
<activity android:name=".YourActivityName"
android:theme="@style/Theme.Design.NoActionBar">
that works for me
var inputs = document.getElementsByTagName('input');
for (var i = 0; i < inputs.length; ++i) {
// ...
}
The simplest way is using libraries like google-http-java-client but if you want parse the JSON response by yourself you can do that in a multiple ways, you can use org.json, json-simple, Gson, minimal-json, jackson-mapper-asl (from 1.x)... etc
A set of simple examples:
Using Gson:
import java.io.IOException;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
public class Gson {
public static void main(String[] args) {
}
public HttpResponse http(String url, String body) {
try (CloseableHttpClient httpClient = HttpClientBuilder.create().build()) {
HttpPost request = new HttpPost(url);
StringEntity params = new StringEntity(body);
request.addHeader("content-type", "application/json");
request.setEntity(params);
HttpResponse result = httpClient.execute(request);
String json = EntityUtils.toString(result.getEntity(), "UTF-8");
com.google.gson.Gson gson = new com.google.gson.Gson();
Response respuesta = gson.fromJson(json, Response.class);
System.out.println(respuesta.getExample());
System.out.println(respuesta.getFr());
} catch (IOException ex) {
}
return null;
}
public class Response{
private String example;
private String fr;
public String getExample() {
return example;
}
public void setExample(String example) {
this.example = example;
}
public String getFr() {
return fr;
}
public void setFr(String fr) {
this.fr = fr;
}
}
}
Using json-simple:
import java.io.IOException;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
public class JsonSimple {
public static void main(String[] args) {
}
public HttpResponse http(String url, String body) {
try (CloseableHttpClient httpClient = HttpClientBuilder.create().build()) {
HttpPost request = new HttpPost(url);
StringEntity params = new StringEntity(body);
request.addHeader("content-type", "application/json");
request.setEntity(params);
HttpResponse result = httpClient.execute(request);
String json = EntityUtils.toString(result.getEntity(), "UTF-8");
try {
JSONParser parser = new JSONParser();
Object resultObject = parser.parse(json);
if (resultObject instanceof JSONArray) {
JSONArray array=(JSONArray)resultObject;
for (Object object : array) {
JSONObject obj =(JSONObject)object;
System.out.println(obj.get("example"));
System.out.println(obj.get("fr"));
}
}else if (resultObject instanceof JSONObject) {
JSONObject obj =(JSONObject)resultObject;
System.out.println(obj.get("example"));
System.out.println(obj.get("fr"));
}
} catch (Exception e) {
// TODO: handle exception
}
} catch (IOException ex) {
}
return null;
}
}
etc...
Writing Ian Purton's answer in a slightly more idiomatic way:
(1..5).each do |x|
next if x < 2
puts x
end
Prints:
2
3
4
5
You could do something like this:
#youritem .fade.in {
animation-name: fadeIn;
}
#youritem .fade.out {
animation-name: fadeOut;
}
@keyframes fadeIn {
0% {
opacity: 0;
transform: translateY(startYposition);
}
100% {
opacity: 1;
transform: translateY(endYposition);
}
}
@keyframes fadeOut {
0% {
opacity: 1;
transform: translateY(startYposition);
}
100% {
opacity: 0;
transform: translateY(endYposition);
}
}
Example - Slide and Fade:
This slides and animates the opacity - not based on height of the container, but on the top/coordinate. View example
Example - Auto-height/No Javascript: Here is a live sample, not needing height - dealing with automatic height and no javascript.
View example
The SyntaxError: unexpected EOF while parsing
means that the end of your source code was reached before all code blocks were completed. A code block starts with a statement like for i in range(100):
and requires at least one line afterwards that contains code that should be in it.
It seems like you were executing your program line by line in the ipython console. This works for single statements like a = 3
but not for code blocks like for loops. See the following example:
In [1]: for i in range(100):
File "<ipython-input-1-ece1e5c2587f>", line 1
for i in range(100):
^
SyntaxError: unexpected EOF while parsing
To avoid this error, you have to enter the whole code block as a single input:
In [2]: for i in range(5):
...: print(i, end=', ')
0, 1, 2, 3, 4,
Source: http://ademar.name/blog/2006/04/curl-ssl-certificate-problem-v.html
Curl: SSL certificate problem, verify that the CA cert is OK
07 April 2006
When opening a secure url with Curl you may get the following error:
SSL certificate problem, verify that the CA cert is OK
I will explain why the error and what you should do about it.
The easiest way of getting rid of the error would be adding the following two lines to your script . This solution poses a security risk tho.
//WARNING: this would prevent curl from detecting a 'man in the middle' attack curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0); curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
Let see what this two parameters do. Quoting the manual.
CURLOPT_SSL_VERIFYHOST: 1 to check the existence of a common name in the SSL peer certificate. 2 to check the existence of a common name and also verify that it matches the hostname provided.
CURLOPT_SSL_VERIFYPEER: FALSE to stop CURL from verifying the peer's certificate. Alternate certificates to verify against can be specified with the CURLOPT_CAINFO option or a certificate directory can be specified with the CURLOPT_CAPATH option. CURLOPT_SSL_VERIFYHOST may also need to be TRUE or FALSE if CURLOPT_SSL_VERIFYPEER is disabled (it defaults to 2). Setting CURLOPT_SSL_VERIFYHOST to 2 (This is the default value) will garantee that the certificate being presented to you have a 'common name' matching the URN you are using to access the remote resource. This is a healthy check but it doesn't guarantee your program is not being decieved.
Enter the 'man in the middle'
Your program could be misleaded into talking to another server instead. This can be achieved through several mechanisms, like dns or arp poisoning ( This is a story for another day). The intruder can also self-sign a certificate with the same 'comon name' your program is expecting. The communication would still be encrypted but you would be giving away your secrets to an impostor. This kind of attack is called 'man in the middle'
Defeating the 'man in the middle'
Well, we need to to verify the certificate being presented to us is good for real. We do this by comparing it against a certificate we reasonable* trust.
If the remote resource is protected by a certificate issued by one of the main CA's like Verisign, GeoTrust et al, you can safely compare against Mozilla's CA certificate bundle which you can get from http://curl.haxx.se/docs/caextract.html
Save the file
cacert.pem
somewhere in your server and set the following options in your script.curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, TRUE); curl_setopt ($ch, CURLOPT_CAINFO, "pathto/cacert.pem");
for All above Info Credit Goes to : http://ademar.name/blog/2006/04/curl-ssl-certificate-problem-v.html
CHANNEL_ID
in NotificationChannel and Notification.Builder must be the same, try this code:
String CHANNEL_ID = "my_channel_01";
NotificationChannel channel = new NotificationChannel(CHANNEL_ID, "Solveta Unread", NotificationManager.IMPORTANCE_DEFAULT);
Notification.Builder notification = new Notification.Builder(getApplicationContext(), CHANNEL_ID);
based on this link , the correct answer (which i've tested myself) is:
put this code in the constructor or the onCreate()
method of the dialog:
getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.MATCH_PARENT);
in addition , set the style of the dialog to :
<style name="full_screen_dialog">
<item name="android:windowFrame">@null</item>
<item name="android:windowIsFloating">true</item>
<item name="android:windowContentOverlay">@null</item>
<item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
<item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
</style>
this could be achieved via the constructor , for example :
public FullScreenDialog(Context context)
{
super(context, R.style.full_screen_dialog);
...
EDIT: an alternative to all of the above would be to set the style to android.R.style.ThemeOverlay
and that's it.
May I present my guess, since this is not a open technology.
Google says it's about combing information from before, during, after to distinguish human from robot. But I am more interested about that final click on the check box.
Say, the POST data (solved CAPTCHA) has a field called fingerprint, a string calculated from user behavior. I think there may be a field about that check box location. I guess this check box is in a coordinate system randomly generated by Google back-end and encrypted by the public key of my site. So, a robot may "guess/calculate" a location about this box, but when site owner makes the GET query with private key to verify user identity, Google will decrypt the coordinate system and say if the user click on the right place. So, only one possible right click(with some offsets, it's a square box) location in this random coordinate system owned by only Google and site owners.
you can read this tutorial for how to use functions of statistical distributions in python. http://docs.scipy.org/doc/scipy/reference/tutorial/stats.html
from scipy.stats import norm
import matplotlib.pyplot as plt
import numpy as np
#initialize a normal distribution with frozen in mean=-1, std. dev.= 1
rv = norm(loc = -1., scale = 1.0)
rv1 = norm(loc = 0., scale = 2.0)
rv2 = norm(loc = 2., scale = 3.0)
x = np.arange(-10, 10, .1)
#plot the pdfs of these normal distributions
plt.plot(x, rv.pdf(x), x, rv1.pdf(x), x, rv2.pdf(x))
All you need to do is change the string within the java.text.SimpleDateFormat
constructor to:
"MM-dd-yyyy HH:mm:ss".
Just use the appropriate letters to build the above string to match your input date.
If you don't need the unique identifier for further styling of the divs and are using HTML5 you could try and go with custom Data Attributes. Read on here or try a google search for HTML5 Custom Data Attributes
Looks like /e
option is what you need, it'll skip same files/directories.
robocopy c:\data c:\backup /e
If you run the command twice, you'll see the second round is much faster since it skips a lot of things.
You are trying to access an XLS file. However, you are using XSSFWorkbook and XSSFSheet class objects. These classes are mainly used for XLSX files.
For XLS file: HSSFWorkbook
& HSSFSheet
For XLSX file: XSSFSheet
& XSSFSheet
So in place of XSSFWorkbook
use HSSFWorkbook
and in place of XSSFSheet
use HSSFSheet
.
So your code should look like this after the changes are made:
HSSFWorkbook workbook = new HSSFWorkbook(file);
HSSFSheet sheet = workbook.getSheetAt(0);
A HTTP multipart request is a HTTP request that HTTP clients construct to send files and data over to a HTTP Server. It is commonly used by browsers and HTTP clients to upload files to the server.
Check in the folder structure of the project the files within the /gradle/wrapper/ The gradle-wrapper.jar version should be the one specified in the gradle-wrapper.properties
I'm using a minSdkVersion 16 and targetSdkVersion 23.
The following is working for me, it uses
ContextCompat.getDrawable(context, R.drawable.drawable);
Instead of using:
layout.setBackgroundResource(R.drawable.ready);
Rather use:
layout.setBackground(ContextCompat.getDrawable(this, R.drawable.ready));
getActivity()
is used in a fragment, if calling from a activity use this
.
Get the value for an array of associative arrays's property when the property name is an integer:
Starting with an Associative Array where the property names are integers:
var categories = [
{"1":"Category 1"},
{"2":"Category 2"},
{"3":"Category 3"},
{"4":"Category 4"}
];
Push items to the array:
categories.push({"2300": "Category 2300"});
categories.push({"2301": "Category 2301"});
Loop through array and do something with the property value.
for (var i = 0; i < categories.length; i++) {
for (var categoryid in categories[i]) {
var category = categories[i][categoryid];
// log progress to the console
console.log(categoryid + " : " + category);
// ... do something
}
}
Console output should look like this:
1 : Category 1
2 : Category 2
3 : Category 3
4 : Category 4
2300 : Category 2300
2301 : Category 2301
As you can see, you can get around the associative array limitation and have a property name be an integer.
NOTE: The associative array in my example is the json you would have if you serialized a Dictionary[] object.
To answer the question How to delete specific columns in vba for excel. I use Array as below.
sub del_col()
dim myarray as variant
dim i as integer
myarray = Array(10, 9, 8)'Descending to Ascending
For i = LBound(myarray) To UBound(myarray)
ActiveSheet.Columns(myarray(i)).EntireColumn.Delete
Next i
end sub
The dat file has some lines of extra information before the actual data. Skip them with the skip
argument:
read.table("http://www.nilu.no/projects/ccc/onlinedata/ozone/CZ03_2009.dat",
header=TRUE, skip=3)
An easy way to check this if you are unfamiliar with the dataset is to first use readLines
to check a few lines, as below:
readLines("http://www.nilu.no/projects/ccc/onlinedata/ozone/CZ03_2009.dat",
n=10)
# [1] "Ozone data from CZ03 2009" "Local time: GMT + 0"
# [3] "" "Date Hour Value"
# [5] "01.01.2009 00:00 34.3" "01.01.2009 01:00 31.9"
# [7] "01.01.2009 02:00 29.9" "01.01.2009 03:00 28.5"
# [9] "01.01.2009 04:00 32.9" "01.01.2009 05:00 20.5"
Here, we can see that the actual data starts at [4]
, so we know to skip the first three lines.
If you really only wanted the Value
column, you could do that by:
as.vector(
read.table("http://www.nilu.no/projects/ccc/onlinedata/ozone/CZ03_2009.dat",
header=TRUE, skip=3)$Value)
Again, readLines
is useful for helping us figure out the actual name of the columns we will be importing.
But I don't see much advantage to doing that over reading the whole dataset in and extracting later.
While many people here say there is no best way for object creation, there is a rationale as to why there are so many ways to create objects in JavaScript, as of 2019, and this has to do with the progress of JavaScript over the different iterations of EcmaScript releases dating back to 1997.
Prior to ECMAScript 5, there were only two ways of creating objects: the constructor function or the literal notation ( a better alternative to new Object()). With the constructor function notation you create an object that can be instantiated into multiple instances (with the new keyword), while the literal notation delivers a single object, like a singleton.
// constructor function
function Person() {};
// literal notation
var Person = {};
Regardless of the method you use, JavaScript objects are simply properties of key value pairs:
// Method 1: dot notation
obj.firstName = 'Bob';
// Method 2: bracket notation. With bracket notation, you can use invalid characters for a javascript identifier.
obj['lastName'] = 'Smith';
// Method 3: Object.defineProperty
Object.defineProperty(obj, 'firstName', {
value: 'Bob',
writable: true,
configurable: true,
enumerable: false
})
// Method 4: Object.defineProperties
Object.defineProperties(obj, {
firstName: {
value: 'Bob',
writable: true
},
lastName: {
value: 'Smith',
writable: false
}
});
In early versions of JavaScript, the only real way to mimic class-based inheritance was to use constructor functions. the constructor function is a special function that is invoked with the 'new' keyword. By convention, the function identifier is capitalized, albiet it is not required. Inside of the constructor, we refer to the 'this' keyword to add properties to the object that the constructor function is implicitly creating. The constructor function implicitly returns the new object with the populated properties back to the calling function implicitly, unless you explicitly use the return keyword and return something else.
function Person(firstName, lastName) {
this.firstName = firstName;
this.lastName = lastName;
this.sayName = function(){
return "My name is " + this.firstName + " " + this.lastName;
}
}
var bob = new Person("Bob", "Smith");
bob instanceOf Person // true
There is a problem with the sayName method. Typically, in Object-Oriented Class-based programming languages, you use classes as factories to create objects. Each object will have its own instance variables, but it will have a pointer to the methods defined in the class blueprint. Unfortunately, when using JavaScript's constructor function, every time it is called, it will define a new sayName property on the newly created object. So each object will have its own unique sayName property. This will consume more memory resources.
In addition to increased memory resources, defining methods inside of the constructor function eliminates the possibility of inheritance. Again, the method will be defined as a property on the newly created object and no other object, so inheritance cannot work like. Hence, JavaScript provides the prototype chain as a form of inheritance, making JavaScript a prototypal language.
If you have a parent and a parent shares many properties of a child, then the child should inherit those properties. Prior to ES5, it was accomplished as follows:
function Parent(eyeColor, hairColor) {
this.eyeColor = eyeColor;
this.hairColor = hairColor;
}
Parent.prototype.getEyeColor = function() {
console.log('has ' + this.eyeColor);
}
Parent.prototype.getHairColor = function() {
console.log('has ' + this.hairColor);
}
function Child(firstName, lastName) {
Parent.call(this, arguments[2], arguments[3]);
this.firstName = firstName;
this.lastName = lastName;
}
Child.prototype = Parent.prototype;
var child = new Child('Bob', 'Smith', 'blue', 'blonde');
child.getEyeColor(); // has blue eyes
child.getHairColor(); // has blonde hair
The way we utilized the prototype chain above has a quirk. Since the prototype is a live link, by changing the property of one object in the prototype chain, you'd be changing same property of another object as well. Obviously, changing a child's inherited method should not change the parent's method. Object.create resolved this issue by using a polyfill. Thus, with Object.create, you can safely modify a child's property in the prototype chain without affecting the parent's same property in the prototype chain.
ECMAScript 5 introduced Object.create to solve the aforementioned bug in the constructor function for object creation. The Object.create() method CREATES a new object, using an existing object as the prototype of the newly created object. Since a new object is created, you no longer have the issue where modifying the child property in the prototype chain will modify the parent's reference to that property in the chain.
var bobSmith = {
firstName: "Bob",
lastName: "Smith",
sayName: function(){
return "My name is " + this.firstName + " " + this.lastName;
}
}
var janeSmith = Object.create(bobSmith, {
firstName : { value: "Jane" }
})
console.log(bobSmith.sayName()); // My name is Bob Smith
console.log(janeSmith.sayName()); // My name is Jane Smith
janeSmith.__proto__ == bobSmith; // true
janeSmith instanceof bobSmith; // Uncaught TypeError: Right-hand side of 'instanceof' is not callable. Error occurs because bobSmith is not a constructor function.
Prior to ES6, here was a common creational pattern to utilize function constructors and Object.create:
const View = function(element){
this.element = element;
}
View.prototype = {
getElement: function(){
this.element
}
}
const SubView = function(element){
View.call(this, element);
}
SubView.prototype = Object.create(View.prototype);
Now Object.create coupled with constructor functions have been widely used for object creation and inheritance in JavaScript. However, ES6 introduced the concept of classes, which are primarily syntactical sugar over JavaScript's existing prototype-based inheritance. The class syntax does not introduce a new object-oriented inheritance model to JavaScript. Thus, JavaScript remains a prototypal language.
ES6 classes make inheritance much easier. We no longer have to manually copy the parent class's prototype functions and reset the child class's constructor.
// create parent class
class Person {
constructor (name) {
this.name = name;
}
}
// create child class and extend our parent class
class Boy extends Person {
constructor (name, color) {
// invoke our parent constructor function passing in any required parameters
super(name);
this.favoriteColor = color;
}
}
const boy = new Boy('bob', 'blue')
boy.favoriteColor; // blue
All in all, these 5 different strategies of Object Creation in JavaScript coincided the evolution of the EcmaScript standard.
This is because according to CSS 2.1, the effect of position: relative
on table elements is undefined. Illustrative of this, position: relative
has the desired effect on Chrome 13, but not on Firefox 4. Your solution here is to add a div
around your content and put the position: relative
on that div
instead of the td
. The following illustrates the results you get with the position: relative
(1) on a div
good), (2) on a td
(no good), and finally (3) on a div
inside a td
(good again).
<table>_x000D_
<tr>_x000D_
<td>_x000D_
<div style="position:relative;">_x000D_
<span style="position:absolute; left:150px;">_x000D_
Absolute span_x000D_
</span>_x000D_
Relative div_x000D_
</div>_x000D_
</td>_x000D_
</tr>_x000D_
</table>
_x000D_
I'm adding this second answer based on a proposed edit by user srborlongan to my other answer. I think the technique proposed was interesting, but it wasn't really suitable as an edit to my answer. Others agreed and the proposed edit was voted down. (I wasn't one of the voters.) The technique has merit, though. It would have been best if srborlongan had posted his/her own answer. This hasn't happened yet, and I didn't want the technique to be lost in the mists of the StackOverflow rejected edit history, so I decided to surface it as a separate answer myself.
Basically the technique is to use some of the Optional
methods in a clever way to avoid having to use a ternary operator (? :
) or an if/else statement.
My inline example would be rewritten this way:
Optional<Other> result =
things.stream()
.map(this::resolve)
.flatMap(o -> o.map(Stream::of).orElseGet(Stream::empty))
.findFirst();
An my example that uses a helper method would be rewritten this way:
/**
* Turns an Optional<T> into a Stream<T> of length zero or one depending upon
* whether a value is present.
*/
static <T> Stream<T> streamopt(Optional<T> opt) {
return opt.map(Stream::of)
.orElseGet(Stream::empty);
}
Optional<Other> result =
things.stream()
.flatMap(t -> streamopt(resolve(t)))
.findFirst();
COMMENTARY
Let's compare the original vs modified versions directly:
// original
.flatMap(o -> o.isPresent() ? Stream.of(o.get()) : Stream.empty())
// modified
.flatMap(o -> o.map(Stream::of).orElseGet(Stream::empty))
The original is a straightforward if workmanlike approach: we get an Optional<Other>
; if it has a value, we return a stream containing that value, and if it has no value, we return an empty stream. Pretty simple and easy to explain.
The modification is clever and has the advantage that it avoids conditionals. (I know that some people dislike the ternary operator. If misused it can indeed make code hard to understand.) However, sometimes things can be too clever. The modified code also starts off with an Optional<Other>
. Then it calls Optional.map
which is defined as follows:
If a value is present, apply the provided mapping function to it, and if the result is non-null, return an Optional describing the result. Otherwise return an empty Optional.
The map(Stream::of)
call returns an Optional<Stream<Other>>
. If a value was present in the input Optional, the returned Optional contains a Stream that contains the single Other result. But if the value was not present, the result is an empty Optional.
Next, the call to orElseGet(Stream::empty)
returns a value of type Stream<Other>
. If its input value is present, it gets the value, which is the single-element Stream<Other>
. Otherwise (if the input value is absent) it returns an empty Stream<Other>
. So the result is correct, the same as the original conditional code.
In the comments discussing on my answer, regarding the rejected edit, I had described this technique as "more concise but also more obscure". I stand by this. It took me a while to figure out what it was doing, and it also took me a while to write up the above description of what it was doing. The key subtlety is the transformation from Optional<Other>
to Optional<Stream<Other>>
. Once you grok this it makes sense, but it wasn't obvious to me.
I'll acknowledge, though, that things that are initially obscure can become idiomatic over time. It might be that this technique ends up being the best way in practice, at least until Optional.stream
gets added (if it ever does).
UPDATE: Optional.stream
has been added to JDK 9.
You need a table variable and it can be this simple.
declare @ID table (ID int)
insert into MyTable2(ID)
output inserted.ID into @ID
values (1)
Based on the answer from #squiguy, to get a true timestamp I would type cast it from float.
>>> import time
>>> ts = int(time.time())
>>> print(ts)
1389177318
At least that's the concept.
cat "input files" > "output files"
This works in PowerShell, which is the Windows preferred shell in current Windows versions, therefore it works. It is also the only version of the answers above to work with large files, where 'type' or 'copy' fails.
std::vector
is a template class that encapsulate a dynamic array1, stored in the heap, that grows and shrinks automatically if elements are added or removed. It provides all the hooks (begin()
, end()
, iterators, etc) that make it work fine with the rest of the STL. It also has several useful methods that let you perform operations that on a normal array would be cumbersome, like e.g. inserting elements in the middle of a vector (it handles all the work of moving the following elements behind the scenes).
Since it stores the elements in memory allocated on the heap, it has some overhead in respect to static arrays.
std::array
is a template class that encapsulate a statically-sized array, stored inside the object itself, which means that, if you instantiate the class on the stack, the array itself will be on the stack. Its size has to be known at compile time (it's passed as a template parameter), and it cannot grow or shrink.
It's more limited than std::vector
, but it's often more efficient, especially for small sizes, because in practice it's mostly a lightweight wrapper around a C-style array. However, it's more secure, since the implicit conversion to pointer is disabled, and it provides much of the STL-related functionality of std::vector
and of the other containers, so you can use it easily with STL algorithms & co. Anyhow, for the very limitation of fixed size it's much less flexible than std::vector
.
For an introduction to std::array
, have a look at this article; for a quick introduction to std::vector
and to the the operations that are possible on it, you may want to look at its documentation.
I had the same issue every time I tried to create a new project, but based on the console output, it was because of two versions of android-support-v4 that were different:
[2014-10-29 16:31:57 - HeadphoneSplitter] Found 2 versions of android-support-v4.jar in the dependency list,
[2014-10-29 16:31:57 - HeadphoneSplitter] but not all the versions are identical (check is based on SHA-1 only at this time).
[2014-10-29 16:31:57 - HeadphoneSplitter] All versions of the libraries must be the same at this time.
[2014-10-29 16:31:57 - HeadphoneSplitter] Versions found are:
[2014-10-29 16:31:57 - HeadphoneSplitter] Path: C:\Users\jbaurer\workspace\appcompat_v7\libs\android-support-v4.jar
[2014-10-29 16:31:57 - HeadphoneSplitter] Length: 627582
[2014-10-29 16:31:57 - HeadphoneSplitter] SHA-1: cb6883d96005bc85b3e868f204507ea5b4fa9bbf
[2014-10-29 16:31:57 - HeadphoneSplitter] Path: C:\Users\jbaurer\workspace\HeadphoneSplitter\libs\android-support-v4.jar
[2014-10-29 16:31:57 - HeadphoneSplitter] Length: 758727
[2014-10-29 16:31:57 - HeadphoneSplitter] SHA-1: efec67655f6db90757faa37201efcee2a9ec3507
[2014-10-29 16:31:57 - HeadphoneSplitter] Jar mismatch! Fix your dependencies
I don't know a lot about Eclipse. but I simply deleted the copy of the jar file from my project's libs folder so that it would use the appcompat_v7 jar file instead. This fixed my issue.
It's because you've removed the id
which is how you're finding the element. This line of code is trying to add id="page_navigation1"
to an element with the id
named page_navigation1
, but it doesn't exist (because you deleted the attribute):
$("#page_navigation1").attr("id","page_navigation1");
If you want to add and remove a class that makes your <div>
red use:
$( '#page_navigation1' ).addClass( 'red-class' );
And:
$( '#page_navigation1' ).removeClass( 'red-class' );
Where red-class
is:
.red-class {
background-color: red;
}
If you didn't index too much data into the index yet, you can use term facet query on the field that you would like to debug to see the tokens and their frequencies:
curl -XDELETE 'http://localhost:9200/test-idx'
echo
curl -XPUT 'http://localhost:9200/test-idx' -d '
{
"settings": {
"index.number_of_shards" : 1,
"index.number_of_replicas": 0
},
"mappings": {
"doc": {
"properties": {
"message": {"type": "string", "analyzer": "snowball"}
}
}
}
}'
echo
curl -XPUT 'http://localhost:9200/test-idx/doc/1' -d '
{
"message": "How is this going to be indexed?"
}
'
echo
curl -XPOST 'http://localhost:9200/test-idx/_refresh'
echo
curl -XGET 'http://localhost:9200/test-idx/doc/_search?pretty=true&search_type=count' -d '{
"query": {
"match": {
"_id": "1"
}
},
"facets": {
"tokens": {
"terms": {
"field": "message"
}
}
}
}
'
echo
I was experiencing this issue due to the misconfiguration of my Apple Worldwide Developer Relations Certification Authority certificate.
I resolved issue by switching from "Alway Trust" to "Use System Defaults"
Step by Step:
To store an object, you could make a letters that you can use to get an object from a string to an object (may not make sense). For example
var obj = {a: "lol", b: "A", c: "hello world"};
function saveObj (key){
var j = "";
for(var i in obj){
j += (i+"|"+obj[i]+"~");
}
localStorage.setItem(key, j);
} // Saving Method
function getObj (key){
var j = {};
var k = localStorage.getItem(key).split("~");
for(var l in k){
var m = k[l].split("|");
j[m[0]] = m[1];
}
return j;
}
saveObj("obj"); // undefined
getObj("obj"); // {a: "lol", b: "A", c: "hello world"}
This technique will cause some glitches if you use the letter that you used to split the object, and it's also very experimental.
Try the solution from this question: How can I get an direct Instagram link from a twitter entity?
You can get just the image by appending /media/ to the URL. Using your
You can even specify a size,
One of t (thumbnail), m (medium), l (large). Defaults to m.
So for a thumbnail: http://instagr.am/p/QC8hWKL_4K/media/?size=t
I tried to use socket.io on AWS, I can at most keep around 600 connections stable.
And I found out it is because socket.io used long polling first and upgraded to websocket later.
after I set the config to use websocket only, I can keep around 9000 connections.
Set this config at client side:
const socket = require('socket.io-client')
const conn = socket(host, { upgrade: false, transports: ['websocket'] })
In iOS6, Apple supports this via the <input type="file">
tag. I couldn't find a useful link in Apple's developer documentation, but there's an example here.
It looks like overlays and more advanced functionality is not yet available, but this should work for a lot of use cases.
EDIT: The w3c has a spec that iOS6 Safari seems to implement a subset of. The capture
attribute is notably missing.
I took the best of the above and added the ability to work with any input, outside of forms, etc. Also it properly loops back to start now if you reach the last input. And in the event of only one input it blurs then refocuses the single input to trigger any external blur/focus handlers.
$('input,select').keydown( function(e) {
var key = e.charCode ? e.charCode : e.keyCode ? e.keyCode : 0;
if(key == 13) {
e.preventDefault();
var inputs = $('#content').find(':input:visible');
var nextinput = 0;
if (inputs.index(this) < (inputs.length-1)) {
nextinput = inputs.index(this)+1;
}
if (inputs.length==1) {
$(this).blur().focus();
} else {
inputs.eq(nextinput).focus();
}
}
});
I encountered the same error message after unpacking MinGW archives to C:\MinGW
and setting the path to environment variable as C:\MinGW\bin;
.
When I try to compile I get this error!
gcc: error: CreateProcess: No such file or directory
I finally figured out that some of the downloaded archives were reported broken while unpaking them to C:\MinGW
(yet I ignored this initially).
Once I deleted the broken files and re-downloaded the whole archives again from SourceForge, unpacked them to C:\MinGW successfully the error was gone, and the compiler worked fine and output my desired hello.exe
.
I ran this:
gcc hello.c -o hello
The result result was this (a blinking underscore):
_
I don't know if it's good practice, but I used to use this:
($a=<F>);
var str = " my awesome string "
str.trim();
for old browsers, use regex
str = str.replace(/^[ ]+|[ ]+$/g,'')
//str = "my awesome string"
gb = df.groupby(['A'])
gb_groups = grouped_df.groups
If you are looking for selective groupby objects then, do: gb_groups.keys(), and input desired key into the following key_list..
gb_groups.keys()
key_list = [key1, key2, key3 and so on...]
for key, values in gb_groups.iteritems():
if key in key_list:
print df.ix[values], "\n"
If the array element is not integer you can use something like below :
$skus = array('LDRES10','LDRES12','LDRES11'); //sample data
if(!empty($skus)){
$sql = "SELECT * FROM `products` WHERE `prodCode` IN ('" . implode("','", $skus) . "') "
}
Instead of if-else condition use if in both conditions. it will work that way but not sure why.
Using the fontawesome-all.css file: Changing the "Brands" font-family from "Font Awesome 5 Free" to "Font Awesome 5 Brands" fixed the issues I was having.
I can't take all of the credit - I fixed my own local issue right before looking at the CDN version: https://use.fontawesome.com/releases/v5.0.6/css/all.css
They've got the issue sorted out on the CDN as well.
@font-face {_x000D_
font-family: 'Font Awesome 5 Brands';_x000D_
font-style: normal;_x000D_
font-weight: normal;_x000D_
src: url("../webfonts/fa-brands-400.eot");_x000D_
src: url("../webfonts/fa-brands-400.eot?#iefix") format("embedded-opentype"), url("../webfonts/fa-brands-400.woff2") format("woff2"), url("../webfonts/fa-brands-400.woff") format("woff"), url("../webfonts/fa-brands-400.ttf") format("truetype"), url("../webfonts/fa-brands-400.svg#fontawesome") format("svg"); }_x000D_
_x000D_
.fab {_x000D_
font-family: 'Font Awesome 5 Brands'; }_x000D_
@font-face {_x000D_
font-family: 'Font Awesome 5 Brands';_x000D_
font-style: normal;_x000D_
font-weight: 400;_x000D_
src: url("../webfonts/fa-regular-400.eot");_x000D_
src: url("../webfonts/fa-regular-400.eot?#iefix") format("embedded-opentype"), url("../webfonts/fa-regular-400.woff2") format("woff2"), url("../webfonts/fa-regular-400.woff") format("woff"), url("../webfonts/fa-regular-400.ttf") format("truetype"), url("../webfonts/fa-regular-400.svg#fontawesome") format("svg"); }
_x000D_
In my case I created a database and gave the collation 'utf8_general_ci' but the required collation was 'latin1'. After changing my collation type to latin1_bin the error was gone.
On a large iteration I like using interrupts. Just press Ctrl + C to quit:
my $exitflag = 0;
$SIG{INT} = sub { $exitflag=1 };
while(!$exitflag) {
# Do your stuff
}
I've had the same problem when running my spring boot application with tomcat7:run
It gives error with the following dependency in maven pom.xml:
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</dependency>
SEVERE: Unable to process Jar entry [module-info.class] from Jar [jar:file:/.m2/repository/org/apiguardian/apiguardian-api/1.1.0/apiguardian-api-1.1.0.jar!/] for annotations
org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19
Jul 09, 2020 1:28:09 PM org.apache.catalina.startup.ContextConfig processAnnotationsJar
SEVERE: Unable to process Jar entry [module-info.class] from Jar [jar:file:/.m2/repository/org/apiguardian/apiguardian-api/1.1.0/apiguardian-api-1.1.0.jar!/] for annotations
org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19
But when I correctly specify it in test scope, it does not give error:
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<scope>test</scope>
</dependency>
So if want to set the value of an environment variable to something different for every build then we can pass these values during build time and we don't need to change our docker file every time.
While ENV
, once set cannot be overwritten through command line values. So, if we want to have our environment variable to have different values for different builds then we could use ARG
and set default values in our docker file. And when we want to overwrite these values then we can do so using --build-args
at every build without changing our docker file.
For more details, you can refer this.
I have tried many include sudo apt-get purge ruby
, sudo apt-get remove ruby
and sudo aptitude purpe ruby
, both with and without '*' at the end. But none of them worked, it's may be I've installed more than one version ruby.
Finally, when I triedsudo apt-get purge ruby1.9
(with the version), then it works.
Add this:
align-items: flex-start;
to the rule for .content {}
. That fixes it in your pen for me, at least (in both Firefox & Chrome).
By default, .content
has align-items: stretch
, which makes it size all of its auto-height children to match its own height, per http://dev.w3.org/csswg/css-flexbox/#algo-stretch. In contrast, the value flex-start
lets the children compute their own heights, and align themselves at its starting edge (and overflow, and trigger a scrollbar).
Outline: Create two elements: a slider/switch and a trough as a parent of the slider. To toggle the state, switch the slider element between an "on" and an "off" class. In the style for one class, set "left" to 0 and leave "right" the default; for the other class, do the opposite:
<style type="text/css">
.toggleSwitch {
width: ...;
height: ...;
/* add other styling as appropriate to position element */
position: relative;
}
.slider {
background-image: url(...);
position: absolute;
width: ...;
height: ...;
}
.slider.on {
right: 0;
}
.slider.off {
left: 0;
}
</style>
<script type="text/javascript">
function replaceClass(elt, oldClass, newClass) {
var oldRE = RegExp('\\b'+oldClass+'\\b');
elt.className = elt.className.replace(oldRE, newClass);
}
function toggle(elt, on, off) {
var onRE = RegExp('\\b'+on+'\\b');
if (onRE.test(elt.className)) {
elt.className = elt.className.replace(onRE, off);
} else {
replaceClass(elt, off, on);
}
}
</script>
...
<div class="toggleSwitch" onclick="toggle(this.firstChild, 'on', 'off');"><div class="slider off" /></div>
Alternatively, just set the background image for the "on" and "off" states, which is a much easier approach than mucking about with positioning.
I was using a playbook like this to test my roles locally:
---
- hosts: localhost
roles:
- role: .
but this stopped working with Ansible v2.2.
I debugged the aforementioned solution of
---
- hosts: all
tasks:
- name: Find out playbooks path
shell: pwd
register: playbook_path_output
- debug: var=playbook_path_output.stdout
and it produced my home directory and not the "current working directory"
I settled with
---
- hosts: all
roles:
- role: '{{playbook_dir}}'
per the solution above.
Simple solution using the Google Cloud Console Dashboard:
"Cloud Functions" ("Compute" section)
Select your cloud function, e.g. "MyFunction", a side menu should appear on the right showing you the access control settings for it
Click on "Add Member", type in "allUsers" and select the role "Cloud Function Invoker"
Save it -> now, you should see a remark "Allow unauthenticated" in the list of your cloud functions
Access is now available to everybody from the internet with the correct config to your GCP or Firebase project. (Be careful)
Brian, also worth throwing in here - the others are of course correct that you don't need to declare a string variable. However, next time you want to declare a string you don't need to do the following:
NSString *myString = [[NSString alloc] initWithFormat:@"SomeText"];
Although the above does work, it provides a retained NSString variable which you will then need to explicitly release after you've finished using it.
Next time you want a string variable you can use the "@" symbol in a much more convenient way:
NSString *myString = @"SomeText";
This will be autoreleased when you've finished with it so you'll avoid memory leaks too...
Hope that helps!
To add that using Jquery:
$('#commentForm').submit(function(){ //listen for submit event
$.each(params, function(i,param){
$('<input />').attr('type', 'hidden')
.attr('name', param.name)
.attr('value', param.value)
.appendTo('#commentForm');
});
return true;
});
Extending BaseRequestOptions
might be of great help in this scenario. Check out the following code:
import {provide} from 'angular2/core';
import {bootstrap} from 'angular2/platform/browser';
import {HTTP_PROVIDERS, Headers, Http, BaseRequestOptions} from 'angular2/http';
import {AppCmp} from './components/app/app';
class MyRequestOptions extends BaseRequestOptions {
constructor () {
super();
this.headers.append('My-Custom-Header','MyCustomHeaderValue');
}
}
bootstrap(AppCmp, [
ROUTER_PROVIDERS,
HTTP_PROVIDERS,
provide(RequestOptions, { useClass: MyRequestOptions })
]);
This should include 'My-Custom-Header' in every call.
Update:
To be able to change the header anytime you want instead of above code you can also use following code to add a new header:
this.http._defaultOptions.headers.append('Authorization', 'token');
to delete you can do
this.http._defaultOptions.headers.delete('Authorization');
Also there is another function that you can use to set the value:
this.http._defaultOptions.headers.set('Authorization', 'token');
Above solution still is not completely valid in typescript context. _defaultHeaders is protected and not supposed to be used like this. I would recommend the above solution for a quick fix but for long run its better to write your own wrapper around http calls which also handles auth. Take following example from auth0 which is better and clean.
https://github.com/auth0/angular2-jwt/blob/master/angular2-jwt.ts
Update - June 2018 I see a lot of people going for this solution but I would advise otherwise. Appending header globally will send auth token to every api call going out from your app. So the api calls going to third party plugins like intercom or zendesk or any other api will also carry your authorization header. This might result into a big security flaw. So instead, use interceptor globally but check manually if the outgoing call is towards your server's api endpoint or not and then attach auth header.
spans default to inline style, which you can't specify the width of.
display: inline-block;
would be a good way, except IE doesn't support it
you can, however, hack a multiple browser solution
I would just use
string data= "/temp string";
data = data.substring(1)
Output:
temp string
That always works for me.
Try this command.
python -m pip install --user pip==9.0.1
Remember that if you use ng-click for routing you will not be able to right-click the element and choose 'open in new tab' or ctrl clicking the link. I try to use ng-href when in comes to navigation. ng-click is better to use on buttons for operations or visual effects like collapse. But About I would not recommend. If you change the route you might need to change in a lot of placed in the application. Have a method returning the link. ex: About. This method you place in a utility
Have you tried the SVG text element?
.append("text").text(function(d, i) { return d[whichevernode];})
rect element doesn't permit text element inside of it. It only allows descriptive elements (<desc>, <metadata>, <title>
) and animation elements (<animate>, <animatecolor>, <animatemotion>, <animatetransform>, <mpath>, <set>
)
Append the text element as a sibling and work on positioning.
UPDATE
Using g grouping, how about something like this? fiddle
You can certainly move the logic to a CSS class you can append to, remove from the group (this.parentNode)
i found out the best way to refresh your Fragment when data change
if you have a button "search", you have to initialize your ARRAY list inside the button
mSearchBtn.setOnClickListener(new View.OnClickListener() {
@Override public void onClick(View v) {
mList = new ArrayList<Node>();
firebaseSearchQuery.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
for (DataSnapshot dataSnapshot1 : dataSnapshot.getChildren()) {
Node p = dataSnapshot1.getValue(Node .class);
mList.add(p);
}
YourAdapter = new NodeAdapter(getActivity(), mList);
mRecyclerView.setAdapter(YourAdapter );
}
Follow the instruction from RishiKesh Pathak above, you can even short the push command by inserting this command line one time only:
git config --global push.default simple
So next time instead of using git push origin master
you just need:
git push
See details here.
Where do you get the list of ids from in the first place? Since they are IDs in your database, did they come from some previous query?
When I have seen this in the past it has been because:-
I think there may be better ways to rework this code that just getting this SQL statement to work. If you provide more details you might get some ideas.
This service is the best in online image map editing I found so far : http://www.image-maps.com/
... but it is in fact a bit weak and I personnaly don't use it anymore. I switched to GIMP and it is indeed pretty good.
The answer from mobius is not wrong but in some cases you must use imagemaps even if it seems a bit old and rusty. For instance, in a newsletter, where you can't use HTML/CSS to do what you want.
This is an Oracle-specific notation for an outer join. It means that it will include all rows from t1, and use NULLS in the t0 columns if there is no corresponding row in t0.
In standard SQL one would write:
SELECT t0.foo, t1.bar
FROM FIRST_TABLE t0
RIGHT OUTER JOIN SECOND_TABLE t1;
Oracle recommends not to use those joins anymore if your version supports ANSI joins (LEFT/RIGHT JOIN) :
Oracle recommends that you use the FROM clause OUTER JOIN syntax rather than the Oracle join operator. Outer join queries that use the Oracle join operator (+) are subject to the following rules and restrictions […]
One important thing to mention as well is the security improvement that comes with the package-lock file. Since it keeps all the hashes of the packages if someone would tamper with the public npm registry and change the source code of a package without even changing the version of the package itself it would be detected by the package-lock file.
This code is equivalent, shorter, and more readable:
int8_t strcmp (const uint8_t* s1, const uint8_t* s2)
{
while( (*s1!='\0') && (*s1==*s2) ){
s1++;
s2++;
}
return (int8_t)*s1 - (int8_t)*s2;
}
We only need to test for end of s1, because if we reach the end of s2 before end of s1, the loop will terminate (since *s2 != *s1).
The return expression calculates the correct value in every case, provided we are only using 7-bit (pure ASCII) characters. Careful thought is needed to produce correct code for 8-bit characters, because of the risk of integer overflow.
I am also adding an answer that augments this a little bit because I came to this entry when searching for an answer, and this had almost what I needed, but I needed a bit more, which I got via @MrFlik 's answer and the R lazyeval vignettes.
I wanted to make a function that could take a dataframe and a vector of column names (as strings) that I want to be converted from a string to a Date object. I couldn't figure out how to make as.Date()
take an argument that is a string and convert it to a column, so I did it as shown below.
Below is how I did this via SE mutate (mutate_()
) and the .dots
argument. Criticisms that make this better are welcome.
library(dplyr)
dat <- data.frame(a="leave alone",
dt="2015-08-03 00:00:00",
dt2="2015-01-20 00:00:00")
# This function takes a dataframe and list of column names
# that have strings that need to be
# converted to dates in the data frame
convertSelectDates <- function(df, dtnames=character(0)) {
for (col in dtnames) {
varval <- sprintf("as.Date(%s)", col)
df <- df %>% mutate_(.dots= setNames(list(varval), col))
}
return(df)
}
dat <- convertSelectDates(dat, c("dt", "dt2"))
dat %>% str
As has been mentioned, you may run into several issues if you use ISNUMERIC
:
-- Incorrectly gives 0:
SELECT CASE WHEN ISNUMERIC('-') = 1 THEN CAST('-' AS INT) END
-- Error (conversion failure):
SELECT CASE WHEN ISNUMERIC('$') = 1 THEN CAST('$' AS INT) END
SELECT CASE WHEN ISNUMERIC('4.4') = 1 THEN CAST('4.4' AS INT) END
SELECT CASE WHEN ISNUMERIC('1,300') = 1 THEN CAST('1,300' AS INT) END
-- Error (overflow):
SELECT CASE WHEN ISNUMERIC('9999999999') = 1 THEN CAST('9999999999' AS INT) END
If you want a reliable conversion, you'll need to code one yourself.
Update: My new recommendation would be to use an intermediary test conversion to FLOAT
to validate the number. This approach is based on adrianm's comment. The logic can be defined as an inline table-valued function:
CREATE FUNCTION TryConvertInt (@text NVARCHAR(MAX))
RETURNS TABLE
AS
RETURN
(
SELECT
CASE WHEN ISNUMERIC(@text + '.e0') = 1 THEN
CASE WHEN CONVERT(FLOAT, @text) BETWEEN -2147483648 AND 2147483647
THEN CONVERT(INT, @text)
END
END AS [Result]
)
Some tests:
SELECT [Conversion].[Result]
FROM ( VALUES
( '1234' ) -- 1234
, ( '1,234' ) -- NULL
, ( '1234.0' ) -- NULL
, ( '-1234' ) -- -1234
, ( '$1234' ) -- NULL
, ( '1234e10' ) -- NULL
, ( '1234 5678' ) -- NULL
, ( '123-456' ) -- NULL
, ( '1234.5' ) -- NULL
, ( '123456789000000' ) -- NULL
, ( 'N/A' ) -- NULL
, ( '-' ) -- NULL
, ( '$' ) -- NULL
, ( '4.4' ) -- NULL
, ( '1,300' ) -- NULL
, ( '9999999999' ) -- NULL
, ( '00000000000000001234' ) -- 1234
, ( '212110090000000235698741' ) -- NULL
) AS [Source] ([Text])
OUTER APPLY TryConvertInt ([Source].[Text]) AS [Conversion]
Results are similar to Joseph Sturtevant's answer, with the following main differences:
.
or ,
in order to mimic the behaviour of native INT
conversions. '1,234'
and '1234.0'
return NULL
.'00000000000000001234'
evaluates to 12
. Increasing the parameter length would result in errors on numbers that overflow BIGINT
, such as BBANs (basic bank account numbers) like '212110090000000235698741'
.Withdrawn: The approach below is no longer recommended, as is left just for reference.
The snippet below works on non-negative integers. It checks that your string does not contain any non-digit characters, is not empty, and does not overflow (by exceeding the maximum value for the int
type). However, it also gives NULL
for valid integers whose length exceeds 10 characters due to leading zeros.
SELECT
CASE WHEN @text NOT LIKE '%[^0-9]%' THEN
CASE WHEN LEN(@text) BETWEEN 1 AND 9
OR LEN(@text) = 10 AND @text <= '2147483647'
THEN CAST (@text AS INT)
END
END
If you want to support any number of leading zeros, use the below. The nested CASE
statements, albeit unwieldy, are required to promote short-circuit evaluation and reduce the likelihood of errors (arising, for example, from passing a negative length to LEFT
).
SELECT
CASE WHEN @text NOT LIKE '%[^0-9]%' THEN
CASE WHEN LEN(@text) BETWEEN 1 AND 9 THEN CAST (@text AS INT)
WHEN LEN(@text) >= 10 THEN
CASE WHEN LEFT(@text, LEN(@text) - 10) NOT LIKE '%[^0]%'
AND RIGHT(@text, 10) <= '2147483647'
THEN CAST (@text AS INT)
END
END
END
If you want to support positive and negative integers with any number of leading zeros:
SELECT
-- Positive integers (or 0):
CASE WHEN @text NOT LIKE '%[^0-9]%' THEN
CASE WHEN LEN(@text) BETWEEN 1 AND 9 THEN CAST (@text AS INT)
WHEN LEN(@text) >= 10 THEN
CASE WHEN LEFT(@text, LEN(@text) - 10) NOT LIKE '%[^0]%'
AND RIGHT(@text, 10) <= '2147483647'
THEN CAST (@text AS INT)
END
END
-- Negative integers:
WHEN LEFT(@text, 1) = '-' THEN
CASE WHEN RIGHT(@text, LEN(@text) - 1) NOT LIKE '%[^0-9]%' THEN
CASE WHEN LEN(@text) BETWEEN 2 AND 10 THEN CAST (@text AS INT)
WHEN LEN(@text) >= 11 THEN
CASE WHEN SUBSTRING(@text, 2, LEN(@text) - 11) NOT LIKE '%[^0]%'
AND RIGHT(@text, 10) <= '2147483648'
THEN CAST (@text AS INT)
END
END
END
END
I liked the using a StringBuilder extension method.
There are several methods to find kafka version
Method 1 simple:-
ps -ef|grep kafka
it will displays all running kafka clients in the console... Ex:- /usr/hdp/current/kafka-broker/bin/../libs/kafka-clients-0.10.0.2.5.3.0-37.jar we are using 0.10.0.2.5.3.0-37 version of kafka
Method 2:- go to
cd /usr/hdp/current/kafka-broker/libs
ll |grep kafka
Ex:- kafka_2.10-0.10.0.2.5.3.0-37.jar kafka-clients-0.10.0.2.5.3.0-37.jar
same result as method 1 we can find the version of kafka using in kafka libs.
If you find search and replace faster to use, you could use a regex replace like this:
Find (regex): (^|\G) {2}
(Instead of " {2}" <space>{2}
you can just write two spaces. Used it here for clarity.)
Replace with 4 spaces, or whatever you want, like \t
.
use ondragstart(event)
instead of ondrag(event)
Try using #selector to call the IBaction.In the cellforrowatindexpath
cell.editButton.tag = indexPath.row
cell.editButton.addTarget(self, action: #selector(editButtonPressed), for: .touchUpInside)
This way you can access the indexpath inside the method editButtonPressed
func editButtonPressed(_ sender: UIButton) {
print(sender.tag)//this value will be same as indexpath.row
}
If you're wanting to run the script and end at a prompt (so you can inspect variables, etc), then use:
python -i test.py
That will run the script and then drop you into a Python interpreter.
I placed the button group inside the title, and then added a clearfix to the bottom.
<div class="panel-heading">
<h4 class="panel-title">
Panel header
<div class="btn-group pull-right">
<a href="#" class="btn btn-default btn-sm">## Lock</a>
<a href="#" class="btn btn-default btn-sm">## Delete</a>
<a href="#" class="btn btn-default btn-sm">## Move</a>
</div>
</h4>
<div class="clearfix"></div>
</div>
Not currently, currently the only languages available to access the iPhone SDK are C/C++, Objective C and Swift.
There is no technical reason why this could not change in the future but I wouldn't hold your breath for this happening in the short term.
That said, Objective-C and Swift really are not too scary...
2016 edit
Javascript with NativeScript framework is available to use now.
You may want to consider placing the customer's name in the From
header and your address in the Sender
header:
From: Company A <[email protected]>
Sender: [email protected]
Most mailers will render this as "From [email protected] on behalf of Company A", which is accurate. And then a Reply-To
of Company A's address won't seem out of sorts.
From RFC 5322:
The "From:" field specifies the author(s) of the message, that is, the mailbox(es) of the person(s) or system(s) responsible for the writing of the message. The "Sender:" field specifies the mailbox of the agent responsible for the actual transmission of the message. For example, if a secretary were to send a message for another person, the mailbox of the secretary would appear in the "Sender:" field and the mailbox of the actual author would appear in the "From:" field.
yes,you can do with javascript by the window.matchMedia
desktop for red colour text
tablet for green colour text
//isat_style_media_query_for_desktop_mobile_tablets_x000D_
var tablets = window.matchMedia("(max-width: 768px)");//for tablet devices_x000D_
var mobiles = window.matchMedia("(max-width: 480px)");//for mobile devices_x000D_
var desktops = window.matchMedia("(min-width: 992px)");//for desktop devices_x000D_
_x000D_
_x000D_
_x000D_
isat_find_device_tablets(tablets);//apply style for tablets_x000D_
isat_find_device_mobile(mobiles);//apply style for mobiles_x000D_
isat_find_device_desktops(desktops);//apply style for desktops_x000D_
// isat_find_device_desktops(desktops,tablets,mobiles);// Call listener function at run time_x000D_
tablets.addListener(isat_find_device_tablets);//listen untill detect tablet screen size_x000D_
desktops.addListener(isat_find_device_desktops);//listen untill detect desktop screen size_x000D_
mobiles.addListener(isat_find_device_mobile);//listen untill detect mobile devices_x000D_
// desktops.addListener(isat_find_device_desktops);_x000D_
_x000D_
// Attach listener function on state changes_x000D_
_x000D_
function isat_find_device_mobile(mob)_x000D_
{_x000D_
_x000D_
// isat mobile style here_x000D_
var daynight=document.getElementById("daynight");_x000D_
daynight.style.color="blue";_x000D_
_x000D_
// isat mobile style here_x000D_
_x000D_
}_x000D_
_x000D_
function isat_find_device_desktops(des)_x000D_
{_x000D_
_x000D_
// isat mobile style here_x000D_
_x000D_
var daynight=document.getElementById("daynight");_x000D_
daynight.style.color="red";_x000D_
_x000D_
// isat mobile style here_x000D_
}_x000D_
_x000D_
function isat_find_device_tablets(tab)_x000D_
{_x000D_
_x000D_
// isat mobile style here_x000D_
var daynight=document.getElementById("daynight");_x000D_
daynight.style.color="green";_x000D_
_x000D_
// isat mobile style here_x000D_
}_x000D_
_x000D_
_x000D_
//isat_style_media_query_for_desktop_mobile_tablets
_x000D_
<div id="daynight">tricky style for mobile,desktop and tablet</div>
_x000D_
If you want to carry on using CSS3 selectors but need to support older browsers I would suggest using a polyfill such as Selectivizr.js
For Mac OS X 10.7 (Lion), it is:
chmod -R 755 /directory
And yes, as all other say, be careful when doing this.
Create a HttpRequestMessage
, set the Method to GET
, set your headers and then use SendAsync
instead of GetAsync
.
var client = new HttpClient();
var request = new HttpRequestMessage() {
RequestUri = new Uri("http://www.someURI.com"),
Method = HttpMethod.Get,
};
request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("text/plain"));
var task = client.SendAsync(request)
.ContinueWith((taskwithmsg) =>
{
var response = taskwithmsg.Result;
var jsonTask = response.Content.ReadAsAsync<JsonObject>();
jsonTask.Wait();
var jsonObject = jsonTask.Result;
});
task.Wait();
In case you have multiple images and you want to loop though them and show them 1 by 1 along with titles - this is what you can do. No need to explicitly define ax1, ax2, etc.
import matplotlib.pyplot as plt
fig, ax = plt.subplots(2, 2, figsize=(6, 8))
for i in range(len(ax)):
for j in range(len(ax[i])):
## ax[i,j].imshow(test_images_gr[0].reshape(28,28))
ax[i,j].set_title('Title-' + str(i) + str(j))
I have made a simulation of the problem. looks like the issue is how we should Access Object Properties Dynamically Using Bracket Notation in Typescript
interface IUserProps {
name: string;
age: number;
}
export default class User {
constructor(private data: IUserProps) {}
get(propName: string): string | number {
return this.data[propName as keyof IUserProps];
}
}
I found a blog that might be helpful to understand this better.
here is a link https://www.nadershamma.dev/blog/2019/how-to-access-object-properties-dynamically-using-bracket-notation-in-typescript/
If you are lazy using delegate.
extension UICollectionView {
func setItemsInRow(items: Int) {
if let layout = self.collectionViewLayout as? UICollectionViewFlowLayout {
let contentInset = self.contentInset
let itemsInRow: CGFloat = CGFloat(items);
let innerSpace = layout.minimumInteritemSpacing * (itemsInRow - 1.0)
let insetSpace = contentInset.left + contentInset.right + layout.sectionInset.left + layout.sectionInset.right
let width = floor((CGRectGetWidth(frame) - insetSpace - innerSpace) / itemsInRow);
layout.itemSize = CGSizeMake(width, width)
}
}
}
PS: Should be called after rotation too
If i understood correctly the easiest way is to use regular expression as it provides you lots of flexibility but the other simple method is to use for loop following is the code with example I also counted the occurrence of word and stored in dictionary..
s = """An... essay is, generally, a piece of writing that gives the author's own
argument — but the definition is vague,
overlapping with those of a paper, an article, a pamphlet, and a short story. Essays
have traditionally been
sub-classified as formal and informal. Formal essays are characterized by "serious
purpose, dignity, logical
organization, length," whereas the informal essay is characterized by "the personal
element (self-revelation,
individual tastes and experiences, confidential manner), humor, graceful style,
rambling structure, unconventionality
or novelty of theme," etc.[1]"""
d = {} # creating empty dic
words = s.split() # spliting string and stroing in list
for word in words:
new_word = ''
for c in word:
if c.isalnum(): # checking if indiviual chr is alphanumeric or not
new_word = new_word + c
print(new_word, end=' ')
# if new_word not in d:
# d[new_word] = 1
# else:
# d[new_word] = d[new_word] +1
print(d)
please rate this if this answer is useful!
Basic the facebook token expires about in a hour. But you can using 'exchange' token to get a long-lived token https://developers.facebook.com/docs/facebook-login/access-tokens
GET /oauth/access_token?
grant_type=fb_exchange_token&
client_id={app-id}&
client_secret={app-secret}&
fb_exchange_token={short-lived-token}
Do this. Add this to the bottom of your doc just before you close the body tag.
<script>
function canvasToImg() {
var canvas = document.getElementById("yourCanvasID");
var ctx=canvas.getContext("2d");
//draw a red box
ctx.fillStyle="#FF0000";
ctx.fillRect(10,10,30,30);
var url = canvas.toDataURL();
var newImg = document.createElement("img"); // create img tag
newImg.src = url;
document.body.appendChild(newImg); // add to end of your document
}
canvasToImg(); //execute the function
</script>
Of course somewhere in your doc you need the canvas tag that it will grab.
<canvas id="yourCanvasID" />
I know I'm late but my preferred way is:
:programend
pause>nul
GOTO programend
In this way the user cannot exit using enter.
If I get you right, you want something that seems to be the opposite of what is desired normally: you want a horizontal layout for small screens and vertically stacked elements on large screens. You may achieve this in a way like this:
<div class="container">
<div class="row">
<div class="hidden-md hidden-lg col-xs-3 col-xs-offset-6">a</div>
<div class="hidden-md hidden-lg col-xs-3">b</div>
</div>
<div class="row">
<div class="hidden-xs hidden-sm">c</div>
</div>
</div>
On small screens, i.e. xs and sm, this generates one row with two columns with an offset of 6. On larger screens, i.e. md and lg, it generates two vertically stacked elements in full width (12 columns).
GRANT SELECT ON [viewname] TO [user]
should do it.
There is a problem with objects such as PACKAGE_BODY:
SELECT DBMS_METADATA.get_ddl(object_Type, object_name, owner) FROM ALL_OBJECTS WHERE OWNER = 'WEBSERVICE';
ORA-31600 invalid input value PACKAGE BODY parameter OBJECT_TYPE in function GET_DDL
ORA-06512: ?? "SYS.DBMS_METADATA", line 4018
ORA-06512: ?? "SYS.DBMS_METADATA", line 5843
ORA-06512: ?? line 1
31600. 00000 - "invalid input value %s for parameter %s in function %s"
*Cause: A NULL or invalid value was supplied for the parameter.
*Action: Correct the input value and try the call again.
SELECT DBMS_METADATA.GET_DDL(REPLACE(object_type,' ','_'), object_name, owner)
FROM all_OBJECTS
WHERE (OWNER = 'OWNER1');
I prefer the answers a and b above using functools.reduce() and the answer using numpy.prod(), but here is yet another solution using itertools.accumulate():
import itertools
import operator
prod = list(itertools.accumulate((3, 4, 5), operator.mul))[-1]
I already had multidex enabled but the version was too old so upgraded and it fixed the issue:
// Old version
implementation 'com.android.support:multidex:1.0.3'
// New version
def multidex_version = "2.0.1"
implementation 'androidx.multidex:multidex:$multidex_version'
ping (ICMP protocol) and ssh are two different protocols.
It could be that ssh service is not running or not installed
firewall restriction (local to server like iptables or even sshd config lock down ) or (external firewall that protects incomming traffic to network hosting 111.111.111.111)
First check is to see if ssh port is up
nc -v -w 1 111.111.111.111 -z 22
if it succeeds then ssh should communicate if not then it will never work until restriction is lifted or ssh is started
straight from oracle sql fundamentals book
SET DEFINE OFF
select 'Coda & Sid' from dual;
SET DEFINE ON
how would one escape it without setting define.
Microkernel:
Moves as much from the kernel into “user” space.
Communication takes place between user modules using message passing.
Benefits:
1-Easier to extend a microkernel
2-Easier to port the operating system to new architectures
3-More reliable (less code is running in kernel mode)
4-More secure
Detriments:
1-Performance overhead of user space to kernel space communication
Path.GetFullPath()
does not work with relative paths.
Here's the solution that works with both relative + absolute paths. It works on both Linux + Windows and it keeps the ..
as expected in the beginning of the text (at rest they will be normalized). The solution still relies on Path.GetFullPath
to do the fix with a small workaround.
It's an extension method so use it like text.Canonicalize()
/// <summary>
/// Fixes "../.." etc
/// </summary>
public static string Canonicalize(this string path)
{
if (path.IsAbsolutePath())
return Path.GetFullPath(path);
var fakeRoot = Environment.CurrentDirectory; // Gives us a cross platform full path
var combined = Path.Combine(fakeRoot, path);
combined = Path.GetFullPath(combined);
return combined.RelativeTo(fakeRoot);
}
private static bool IsAbsolutePath(this string path)
{
if (path == null) throw new ArgumentNullException(nameof(path));
return
Path.IsPathRooted(path)
&& !Path.GetPathRoot(path).Equals(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal)
&& !Path.GetPathRoot(path).Equals(Path.AltDirectorySeparatorChar.ToString(), StringComparison.Ordinal);
}
private static string RelativeTo(this string filespec, string folder)
{
var pathUri = new Uri(filespec);
// Folders must end in a slash
if (!folder.EndsWith(Path.DirectorySeparatorChar.ToString())) folder += Path.DirectorySeparatorChar;
var folderUri = new Uri(folder);
return Uri.UnescapeDataString(folderUri.MakeRelativeUri(pathUri).ToString()
.Replace('/', Path.DirectorySeparatorChar));
}
SELECT * FROM employees e1, employees e2
WHERE e1.phoneNumber = e2.phoneNumber
AND e1.id != e2.id;
Update : for better performance and faster query its good to add e1
before *
SELECT e1.* FROM employees e1, employees e2
WHERE e1.phoneNumber = e2.phoneNumber
AND e1.id != e2.id;
This is fixed in npm 7. See npm/cli#PR169
A simple solution that i use, works from IE8+
Give min-height:100% on html so that if content is less then still page takes full view-port height and footer sticks at bottom of page. When content increases the footer shifts down with content and keep sticking to bottom.
JS fiddle working Demo: http://jsfiddle.net/3L3h64qo/2/
html{
position:relative;
min-height: 100%;
}
/*Normalize html and body elements,this style is just good to have*/
html,body{
margin:0;
padding:0;
}
.pageContentWrapper{
margin-bottom:100px;/* Height of footer*/
}
.footer{
position: absolute;
bottom: 0;
left: 0;
right: 0;
height:100px;
background:#ccc;
}
<html>
<body>
<div class="pageContentWrapper">
<!-- All the page content goes here-->
</div>
<div class="footer">
</div>
</body>
</html>
You can change the JDK or JRE location using the following steps:
[tomcat-home]\bin
directory.
c:\tomcat8\bin
Tomcat8W //ES//Tomcat8
note:
in Apache TomEE same steps, but step (3) the command must be: TomEE //ES
Yes, it is because you are using auto layout. Setting the view frame and resizing mask will not work.
You should read Working with Auto Layout Programmatically and Visual Format Language.
You will need to get the current constraints, add the text field, adjust the contraints for the text field, then add the correct constraints on the text field.
Have a look at CGI in Wikipedia. CGI is a protocol between the web server and a external program or a script that handles the input and generates output that is sent to the browser.
CGI is a simply a way for web server and a program to communicate, nothing more, nothing less. Here the server manages the network connection and HTTP protocol and the program handles input and generates output that is sent to the browser. CGI script can be basically any program that can be executed by the webserver and follows the CGI protocol. Thus a CGI program can be implemented, for example, in C. However that is extremely rare, since C is not very well suited for the task.
/cgi-bin/*.cgi
is a simply a path where people commonly put their CGI script. Web server are commonly configured by default to fetch CGI scripts from that path.
a CGI script can be implemented also in PHP, but all PHP programs are not CGI scripts. If webserver has embedded PHP interpreter (e.g. mod_php in Apache), then the CGI phase is skipped by more efficient direct protocol between the web server and the interpreter.
Whether you have implemented a CGI script or not depends on how your script is being executed by the web server.
As per the title of the post I just needed to get all values from a specific column. Here is the code I used to achieve that.
public static IEnumerable<T> ColumnValues<T>(this DataColumn self)
{
return self.Table.Select().Select(dr => (T)Convert.ChangeType(dr[self], typeof(T)));
}
This problem comes when you have copied some text from html or you have done modification in windows environment and trying to compile in Unix/Solaris environment.
Please do "dos2unix" to remove the special characters from the file:
dos2unix fileName.ext fileName.ext
Another version...
Use strtol
, wrapping it inside a simple function to hide its complexity :
inline bool isInteger(const std::string & s)
{
if(s.empty() || ((!isdigit(s[0])) && (s[0] != '-') && (s[0] != '+'))) return false;
char * p;
strtol(s.c_str(), &p, 10);
return (*p == 0);
}
strtol
?As far as I love C++, sometimes the C API is the best answer as far as I am concerned:
strtol
seems quite raw at first glance, so an explanation will make the code simpler to read :
strtol
will parse the string, stopping at the first character that cannot be considered part of an integer. If you provide p
(as I did above), it sets p
right at this first non-integer character.
My reasoning is that if p
is not set to the end of the string (the 0 character), then there is a non-integer character in the string s
, meaning s
is not a correct integer.
The first tests are there to eliminate corner cases (leading spaces, empty string, etc.).
This function should be, of course, customized to your needs (are leading spaces an error? etc.).
See the description of strtol
at: http://en.cppreference.com/w/cpp/string/byte/strtol.
See, too, the description of strtol
's sister functions (strtod
, strtoul
, etc.).
I somehow found this to be neater than using the StringBuilder/StringBuffer approach.
I guess it depends on what approach you took.
The AbstractCollection#toString() method simply iterates over all the elements and appends them to a StringBuilder. So your method may be saving a few lines of code but at the cost of extra String manipulation. Whether that tradeoff is a good one is up to you.
I would just like to add, that simply closing and reopening eclipse has always worked for me with this type of error.
If you want the types of convenience methods mentioned in other answers but need portability (or even if you don't), you might want to check out Flurl [disclosure: I'm the author]. It (thinly) wraps HttpClient
and Json.NET and adds some fluent sugar and other goodies, including some baked-in testing helpers.
Post as JSON:
var resp = await "http://localhost:44268/api/test".PostJsonAsync(widget);
or URL-encoded:
var resp = await "http://localhost:44268/api/test".PostUrlEncodedAsync(widget);
Both examples above return an HttpResponseMessage
, but Flurl includes extension methods for returning other things if you just want to cut to the chase:
T poco = await url.PostJsonAsync(data).ReceiveJson<T>();
dynamic d = await url.PostUrlEncodedAsync(data).ReceiveJson();
string s = await url.PostUrlEncodedAsync(data).ReceiveString();
Flurl is available on NuGet:
PM> Install-Package Flurl.Http
var angle = 0;
$('#button').on('click', function() {
angle += 90;
$('#image').css('transform','rotate(' + angle + 'deg)');
});
Try this code.
I make it simple, if the layout is same i just put the intent it.
My code like this:
public class RegistrationMenuActivity extends AppCompatActivity implements View.OnClickListener {
private Button btnCertificate, btnSeminarKit;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_registration_menu);
initClick();
}
private void initClick() {
btnCertificate = (Button) findViewById(R.id.btn_Certificate);
btnCertificate.setOnClickListener(this);
btnSeminarKit = (Button) findViewById(R.id.btn_SeminarKit);
btnSeminarKit.setOnClickListener(this);
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.btn_Certificate:
break;
case R.id.btn_SeminarKit:
break;
}
Intent intent = new Intent(RegistrationMenuActivity.this, ScanQRCodeActivity.class);
startActivity(intent);
}
}
Only the answers that push the value into the registry affect a permanent change (so the majority of answers on this thread, including the accepted answer, do not permanently affect the Path
).
The following function works for both Path
/ PSModulePath
and for User
/ System
types. It will also add the new path to the current session by default.
function AddTo-Path {
param (
[string]$PathToAdd,
[Parameter(Mandatory=$true)][ValidateSet('System','User')][string]$UserType,
[Parameter(Mandatory=$true)][ValidateSet('Path','PSModulePath')][string]$PathType
)
# AddTo-Path "C:\XXX" "PSModulePath" 'System'
if ($UserType -eq "System" ) { $RegPropertyLocation = 'HKLM:\System\CurrentControlSet\Control\Session Manager\Environment' }
if ($UserType -eq "User" ) { $RegPropertyLocation = 'HKCU:\Environment' } # also note: Registry::HKEY_LOCAL_MACHINE\ format
$PathOld = (Get-ItemProperty -Path $RegPropertyLocation -Name $PathType).$PathType
"`n$UserType $PathType Before:`n$PathOld`n"
$PathArray = $PathOld -Split ";" -replace "\\+$", ""
if ($PathArray -notcontains $PathToAdd) {
"$UserType $PathType Now:" # ; sleep -Milliseconds 100 # Might need pause to prevent text being after Path output(!)
$PathNew = "$PathOld;$PathToAdd"
Set-ItemProperty -Path $RegPropertyLocation -Name $PathType -Value $PathNew
Get-ItemProperty -Path $RegPropertyLocation -Name $PathType | select -ExpandProperty $PathType
if ($PathType -eq "Path") { $env:Path += ";$PathToAdd" } # Add to Path also for this current session
if ($PathType -eq "PSModulePath") { $env:PSModulePath += ";$PathToAdd" } # Add to PSModulePath also for this current session
"`n$PathToAdd has been added to the $UserType $PathType"
}
else {
"'$PathToAdd' is already in the $UserType $PathType. Nothing to do."
}
}
# Add "C:\XXX" to User Path (but only if not already present)
AddTo-Path "C:\XXX" "User" "Path"
# Just show the current status by putting an empty path
AddTo-Path "" "User" "Path"
try this in your command prompt: python -m pip intsall pygame
I used dir /s /b /o:n /a:d
, and it worked perfectly, just make sure you let the file finish writing, or you'll have an incomplete list.
I will add to this something I found on the Spring forums. If you move your JDBC driver jar to the tomcat lib folder, instead of deploying it with your webapp, the warning seems to disappear. I can confirm that this worked for me
Writing JSON Parser Class
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {}
public JSONObject getJSONFromUrl(String url) {
// Making HTTP request
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}
Parsing JSON Data
Once you created parser class next thing is to know how to use that class. Below i am explaining how to parse the json (taken in this example) using the parser class.
2.1. Store all these node names in variables: In the contacts json we have items like name, email, address, gender and phone numbers. So first thing is to store all these node names in variables. Open your main activity class and declare store all node names in static variables.
// url to make request
private static String url = "http://api.9android.net/contacts";
// JSON Node names
private static final String TAG_CONTACTS = "contacts";
private static final String TAG_ID = "id";
private static final String TAG_NAME = "name";
private static final String TAG_EMAIL = "email";
private static final String TAG_ADDRESS = "address";
private static final String TAG_GENDER = "gender";
private static final String TAG_PHONE = "phone";
private static final String TAG_PHONE_MOBILE = "mobile";
private static final String TAG_PHONE_HOME = "home";
private static final String TAG_PHONE_OFFICE = "office";
// contacts JSONArray
JSONArray contacts = null;
2.2. Use parser class to get JSONObject
and looping through each json item. Below i am creating an instance of JSONParser
class and using for loop i am looping through each json item and finally storing each json data in variable.
// Creating JSON Parser instance
JSONParser jParser = new JSONParser();
// getting JSON string from URL
JSONObject json = jParser.getJSONFromUrl(url);
try {
// Getting Array of Contacts
contacts = json.getJSONArray(TAG_CONTACTS);
// looping through All Contacts
for(int i = 0; i < contacts.length(); i++){
JSONObject c = contacts.getJSONObject(i);
// Storing each json item in variable
String id = c.getString(TAG_ID);
String name = c.getString(TAG_NAME);
String email = c.getString(TAG_EMAIL);
String address = c.getString(TAG_ADDRESS);
String gender = c.getString(TAG_GENDER);
// Phone number is agin JSON Object
JSONObject phone = c.getJSONObject(TAG_PHONE);
String mobile = phone.getString(TAG_PHONE_MOBILE);
String home = phone.getString(TAG_PHONE_HOME);
String office = phone.getString(TAG_PHONE_OFFICE);
}
} catch (JSONException e) {
e.printStackTrace();
}
As others have pointed out, ideally, the foreign key would be created as a reference to a primary key (usually an IDENTITY column). However, we don't live in an ideal world, and sometimes even a "small" change to a schema can have significant ripple effects to the application logic.
Consider the case of a Customer table with a SSN column (and a dumb primary key), and a Claim table that also contains a SSN column (populated by business logic from the Customer data, but no FK exists). The design is flawed, but has been in use for several years, and three different applications have been built on the schema. It should be obvious that ripping out Claim.SSN and putting in a real PK-FK relationship would be ideal, but would also be a significant overhaul. On the other hand, putting a UNIQUE constraint on Customer.SSN, and adding a FK on Claim.SSN, could provide referential integrity, with little or no impact on the applications.
Don't get me wrong, I'm all for normalization, but sometimes pragmatism wins over idealism. If a mediocre design can be helped with a band-aid, surgery might be avoided.
There are five possible ways for centering an image with any size with pure CSS.
Using flex
and making the img
tag be inside (best solution for modern browsers):
div {
display: flex;
align-items: center;
justify-content: center
}
Putting the image in background-image
and using background-position
(as @pixeline explained):
div {
background-image: url(...);
background-position:center center
}
Using display: table
for parent element, and using display: table-cell
with vertical-align: middle
for child element:
div.parent {
display: table;
}
div.child {
display: table-cell;
vertical-align: middle;
}
Using position:absolute
with transform
for the image and parent element position be not unset:
div {
position: relative;
}
div > img {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%,-50%);
}
Using line-height
as same height of the element, then using vertical-align
(in my opinion, the best solution for supporting more browsers like IE9>).
Note: In some old browsers, sometimes for using this way safely, you need to have at least one character in the line that the image exist. For fixing this issue, I used a non-breakable space in a pseudo-element of the parent.
As in the following example:
div {
display: block;
height: 200px;
width: 200px;
background-color: purple;
line-height: 200px;
text-align: center;
}
div:after {
content: "\a0";
}
div > img {
vertical-align: middle;
}
_x000D_
<div><img src="https://via.placeholder.com/100.png/09f/fff" /></div>
_x000D_
I recommend adding the following line after the export to PDF:
ThisWorkbook.Sheets("Sheet1").Select
(where eg. Sheet1
is the single sheet you want to be active afterwards)
Leaving multiple sheets in a selected state may cause problems executing some code. (eg. unprotect doesn't function properly when multiple sheets are actively selected.)
The most simple way:
>>> import re
>>> string = 'This is a string, with words!'
>>> re.findall(r'\w+', string)
['This', 'is', 'a', 'string', 'with', 'words']
Change the onclick from
onclick="javascript:SubmitFrm()"
to
onclick="SubmitFrm()"
There is a trick for this. All you have to do is to use RelativeLayout
instead of LinearLayout
as the main container. It's important to have android:layout_gravity="fill_horizontal"
set for it. That should do it.
If you want to handle your webapp's timeout with an apache load balancer, you first have to understand the different meaning of timeout
.
I try to condense the discussion I found here: http://apache-http-server.18135.x6.nabble.com/mod-proxy-When-does-a-backend-be-considered-as-failed-td5031316.html :
It appears that
mod_proxy
considers a backend as failed only when the transport layer connection to that backend fails. Unlessfailonstatus/failontimeout
is used. ...
So, setting failontimeout
is necessary for apache to consider a timeout of the webapp (e.g. served by tomcat) as a fail (and consecutively switch to the hot spare server). For the proper configuration, note the following misconfiguration:
ProxyPass / balancer://localbalance/ failontimeout=on timeout=10 failonstatus=50
This is a misconfiguration because:
You are defining a
balancer
here, so thetimeout
parameter relates to thebalancer
(like the two others). However for abalancer
, thetimeout
parameter is not a connection timeout (like the one used withBalancerMember
), but the maximum time to wait for a free worker/member (e.g. when all the workers are busy or in error state, the default being to not wait).
So, a proper configuration is done like this
timeout
at the BalanceMember
level: <Proxy balancer://mycluster>
BalancerMember http://member1:8080/svc timeout=6
... more BalanceMembers here
</Proxy>
failontimeout
on the balancer
ProxyPass /svc balancer://mycluster failontimeout=on
Restart apache.
The following example defines a Button1_Click event handler. When invoked, this handler uses the FindControl method to locate a control with an ID property of TextBox2 on the containing page. If the control is found, its parent is determined using the Parent property and the parent control's ID is written to the page. If TextBox2 is not found, "Control Not Found" is written to the page.
private void Button1_Click(object sender, EventArgs MyEventArgs)
{
// Find control on page.
Control myControl1 = FindControl("TextBox2");
if(myControl1!=null)
{
// Get control's parent.
Control myControl2 = myControl1.Parent;
Response.Write("Parent of the text box is : " + myControl2.ID);
}
else
{
Response.Write("Control not found");
}
}
See:
/**
* Convert number of seconds into hours, minutes and seconds
* and return an array containing those values
*
* @param integer $inputSeconds Number of seconds to parse
* @return array
*/
function secondsToTime($inputSeconds) {
$secondsInAMinute = 60;
$secondsInAnHour = 60 * $secondsInAMinute;
$secondsInADay = 24 * $secondsInAnHour;
// extract days
$days = floor($inputSeconds / $secondsInADay);
// extract hours
$hourSeconds = $inputSeconds % $secondsInADay;
$hours = floor($hourSeconds / $secondsInAnHour);
// extract minutes
$minuteSeconds = $hourSeconds % $secondsInAnHour;
$minutes = floor($minuteSeconds / $secondsInAMinute);
// extract the remaining seconds
$remainingSeconds = $minuteSeconds % $secondsInAMinute;
$seconds = ceil($remainingSeconds);
// return the final array
$obj = array(
'd' => (int) $days,
'h' => (int) $hours,
'm' => (int) $minutes,
's' => (int) $seconds,
);
return $obj;
}
using Apache IO could be another option for copy the Stream
@RequestMapping(path = "/file/{fileId}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<?> downloadFile(@PathVariable(value="fileId") String fileId,HttpServletResponse response) throws Exception {
InputStream yourInputStream = ...
IOUtils.copy(yourInputStream, response.getOutputStream());
response.flushBuffer();
return ResponseEntity.ok().build();
}
maven dependency
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>1.3.2</version>
</dependency>
RadioGroup radioGroup = new RadioGroup(context);
RadioButton radioBtn1 = new RadioButton(context);
RadioButton radioBtn2 = new RadioButton(context);
RadioButton radioBtn3 = new RadioButton(context);
radioBtn1.setText("Less");
radioBtn2.setText("Normal");
radioBtn3.setText("More");
radioGroup.addView(radioBtn1);
radioGroup.addView(radioBtn2);
radioGroup.addView(radioBtn3);
radioBtn2.setChecked(true);
This is another example using values with select:
INSERT INTO table1(desc, id, email)
SELECT "Hello World", 3, email FROM table2 WHERE ...
There is normally two scenarios where we need debugging.
When we facing issues related to data and we want to check our data and debugging related to data in that case
console.log('data::',data)
and debug js remotely is the best option.
Other case is the UI and styles related issues where we need to check styling of the component in that case react-dev-tools is the best option.
INSERT INTO vendors (
name,
phone,
addressLine1,
addressLine2,
city,
state,
postalCode,
country,
customer_id
)
SELECT
name,
phone,
addressLine1,
addressLine2,
city,
state ,
postalCode,
country,
customer_id
FROM
customers;
As this video illustrates, creating a repo online first is the usual way to go.
The SourceTree Release Notes do mention for SourceTree 1.5+:
Support creating new repositories under team / organisation accounts in Bitbucket.
So while there is no "publishing" feature, you could create your online repo from SourceTree.
The blog post "SourceTree for Windows 1.2 is here" (Sept 2013) also mention:
Now you can configure your Bitbucket, Stash and GitHub accounts in SourceTree and instantly see all your repositories on those services. Easily clone them, open the project on the web, and even create new repositories on the remote service without ever leaving SourceTree.
You’ll find it in the menu under View > Show Hosted Repositories, or using the new button at the bottom right of the bookmarks panel.
Edit: Since your element is dynamically inserted, you have to use delegated on()
as in your example, but you should bind it to the keydown event, because as @Marc comments, in IE the keypress event doesn't capture non-character keys:
$("#parentOfTextbox").on('keydown', '#textbox', function(e) {
var keyCode = e.keyCode || e.which;
if (keyCode == 9) {
e.preventDefault();
// call custom function here
}
});
Check an example here.
Use a list/dictionary or define your own class to encapsulate the stuff you're defining, but if you need all those variables you can do:
a = b = c = d = e = g = h = i = j = True
f = False
I think you can also think of alternative architectures. Sometimes something can be done in another way much more easier. If the producer of HTML file is you, then you can write an HTTP handler to create an Excel document on the server (which is much more easier than in JavaScript) and send a file to the client. If you receive that HTML file from somewhere (like an HTML version of a report), then you still can use a server side language like C# or PHP to create the Excel file still very easily. I mean, you may have other ways too. :)
Since this question is gaining lots of views and this was the accepted answer, I felt the need to add the following disclaimer:
This answer was specific to the OP's question (Which had the width set in the examples). While it works, it requires you to have a width on each of the elements, the image and the paragraph. Unless that is your requirement, I recommend using Joe Conlin's solution which is posted as another answer on this question.
The span
element is an inline element, you can't change its width in CSS.
You can add the following CSS to your span so you will be able to change its width.
display: block;
Another way, which usually makes more sense, is to use a <p>
element as a parent for your <span>
.
<li id="CN2787">
<img class="fav_star" src="images/fav.png">
<p>
<span>Text, text and more text</span>
</p>
</li>
Since <p>
is a block
element, you can set its width using CSS, without having to change anything.
But in both cases, since you have a block element now, you will need to float the image so that your text doesn't all go below your image.
li p{width: 100px; margin-left: 20px}
.fav_star {width: 20px;float:left}
P.S. Instead of float:left
on the image, you can also put float:right
on li p
but in that case, you will also need text-align:left
to realign the text correctly.
P.S.S. If you went ahead with the first solution of not adding a <p>
element, your CSS should look like so:
li span{width: 100px; margin-left: 20px;display:block}
.fav_star {width: 20px;float:left}
You can set drawableLeft in the XML as suggested by marcos, but you might also want to set it programmatically - for example in response to an event. To do this use the method setCompoundDrawablesWithIntrincisBounds(int, int, int, int):
EditText editText = findViewById(R.id.myEditText);
// Set drawables for left, top, right, and bottom - send 0 for nothing
editTxt.setCompoundDrawablesWithIntrinsicBounds(R.drawable.myDrawable, 0, 0, 0);
I want to do a for loop, yet with askewchan's method it does not work well, so I have modified it.
x = np.empty((0,3))
y = np.array([1,2,3])
for i in ...
x = np.vstack((x,y))