It is a new signing mechanism introduced in Android 7.0, with additional features designed to make the APK signature more secure.
It is not mandatory. You should check BOTH of those checkboxes if possible, but if the new V2 signing mechanism gives you problems, you can omit it.
So you can just leave V2 unchecked if you encounter problems, but should have it checked if possible.
UPDATED: This is now mandatory when targeting Android 11.
When encrypting, you use their public key to write a message and they use their private key to read it.
When signing, you use your private key to write message's signature, and they use your public key to check if it's really yours.
I want to use my private key to generate messages so only I can possibly be the sender.
I want my public key to be used to read the messages and I do not care who reads them
This is signing, it is done with your private key.
I want to be able to encrypt certain information and use it as a product key for my software.
I only care that I am the only one who can generate these.
If you only need to know it to yourself, you don't need to mess with keys to do this. You may just generate random data and keep it in a database.
But if you want people to know that the keys are really yours, you need to generate random data, keep in it a database AND sign it with your key.
I would like to include my public key in my software to decrypt/read the signature of the key.
You'll probably need to purchase a certificate for your public key from a commercial provider like Verisign or Thawte, so that people may check that no one had forged your software and replaced your public key with theirs.
In ubuntu, we can find all password related to keystore from the given path.
/home/user/.AndroidStudio2.2(current version)/system/log/idea.log.x(older versions)
edit the file and search android.injected.signing.store
, then you can find the passwords.
-Pandroid.injected.signing.store.file= path to your keystore
-Pandroid.injected.signing.store.password=yourstorepassword
-Pandroid.injected.signing.key.alias=yourkeyalias
-Pandroid.injected.signing.key.password=yourkeypassword
For users of IntelliJ IDEA or Android Studio make these steps:
* From the menu Build/Generate signed APK
* You need to create a keystore path. From the dialog click Create new
. You will create a jks file that includes your keys. Select folder, define a password. So your keystore ok.
* Create new key by for your application by using alias, key password, your name etc.
* Click next.
* From the dialog either select Proguard or not.
Your signed APK file is ready.
Help file: https://www.jetbrains.com/idea/webhelp/generate-signed-apk-wizard.html
since xcode5 organizer no longer team section exists. but the bold sentence was the answer for me. God thanks there is another mac to restore and import to problemmatic mac. now all is ok.
To stay fluent one can use such a trick:
GetItems()
.Select(i => new Action(i.DoStuf)))
.Aggregate((a, b) => a + b)
.Invoke();
What's the problem , in fact ?
If you really need or want 10 a, b, c, d, e, f, g, h, i, j , there will be no other possibility, at a time or another, to write a and write b and write c.....
If the values are all different, you will be obliged to write for exemple
a = 12
b= 'sun'
c = A() #(where A is a class)
d = range(1,102,5)
e = (line in filehandler if line.rstrip())
f = 0,12358
g = True
h = random.choice
i = re.compile('^(!= ab).+?<span>')
j = [78,89,90,0]
that is to say defining the "variables" individually.
Or , using another writing, no need to use _
:
a,b,c,d,e,f,g,h,i,j =\
12,'sun',A(),range(1,102,5),\
(line for line in filehandler if line.rstrip()),\
0.12358,True,random.choice,\
re.compile('^(!= ab).+?<span>'),[78,89,90,0]
or
a,b,c,d,e,f,g,h,i,j =\
(12,'sun',A(),range(1,102,5),
(line for line in filehandler if line.rstrip()),
0.12358,True,random.choice,
re.compile('^(!= ab).+?<span>'),[78,89,90,0])
.
If some of them must have the same value, is the problem that it's too long to write
a, b, c, d, e, f, g, h, i, j = True, True, True, True, True, False, True ,True , True, True
?
Then you can write:
a=b=c=d=e=g=h=i=k=j=True
f = False
.
I don't understand what is exactly your problem. If you want to write a code, you're obliged to use the characters required by the writing of the instructions and definitions. What else ?
I wonder if your question isn't the sign that you misunderstand something.
When one writes a = 10
, one don't create a variable in the sense of "chunk of memory whose value can change". This instruction:
either triggers the creation of an object of type integer
and value 10 and the binding of a name 'a' with this object in the current namespace
or re-assign the name 'a' in the namespace to the object 10 (because 'a' was precedently binded to another object)
I say that because I don't see the utility to define 10 identifiers a,b,c... pointing to False or True. If these values don't change during the execution, why 10 identifiers ? And if they change, why defining the identifiers first ?, they will be created when needed if not priorly defined
Your question appears weird to me
If you use Percona Mysql server
$ yum install Percona-Server-devel-55
$ gem install mysql
try
html, body {
overflow-x:hidden
}
instead of just
body {
overflow-x:hidden
}
Here is the another way to achive this:
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
item.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
item.setEnabled(true);
item.setTitle(Html.fromHtml("<font color='#ff3824'>Settings</font>"));
return false;
}
});
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
I don't know of Google voice, but using the javaScript speech SpeechSynthesisUtterance, you can add a click event to the element you are reference to. eg:
const listenBtn = document.getElementById('myvoice');
listenBtn.addEventListener('click', (e) => {
e.preventDefault();
const msg = new SpeechSynthesisUtterance(
"Hello, hope my code is helpful"
);
window.speechSynthesis.speak(msg);
});
_x000D_
<button type="button" id='myvoice'>Listen to me</button>
_x000D_
I bought a theme from www.xamltemplates.net. The themes ship with source code so you can tweak them. They also offer a free theme (source code included).
In Bootstrap 4 you hide the element:
<p id="insufficient-balance-warning" class="d-none alert alert-danger">Pay me</p>
Then, sure, you could literally show it with:
if (pizzaFundsAreLow) {
$('#insufficient-balance-warning').removeClass('d-none');
}
But if you do it the semantic way, by transferring responsibility from Bootstrap to jQuery, then you can use other jQuery niceties like fading:
if (pizzaFundsAreLow) {
$('#insufficient-balance-warning').hide().removeClass('d-none').fadeIn();
}
If you're hoping to use background-image: url(...);
, I don't think you can. However, if you want to play with layering, you can do something like this:
<img class="bg" src="..." />
And then some CSS:
.bg
{
width: 100%;
z-index: 0;
}
You can now layer content above the stretched image by playing with z-indexes and such. One quick note, the image can't be contained in any other elements for the width: 100%;
to apply to the whole page.
Here's a quick demo if you can't rely on background-size
: http://jsfiddle.net/bB3Uc/
Another example with 3 nested tables: 1/ User 2/ UserRoleCompanie 3/ Companie
SELECT
u.id as userId,
u.firstName,
u.lastName,
u.email,
urc.id ,
urc.companieRole,
c.id as companieId,
c.name as companieName
FROM User as u
JOIN UserRoleCompanie as urc ON u.id = urc.userId
AND urc.id = (
SELECT urc2.id
FROM UserRoleCompanie urc2
JOIN Companie ON urc2.companieId = Companie.id
AND urc2.userId = u.id
AND Companie.isPersonal = false
order by Companie.createdAt DESC
limit 1
)
LEFT JOIN Companie as c ON urc.companieId = c.id
+---------------------------+-----------+--------------------+---------------------------+---------------------------+--------------+---------------------------+-------------------+
| userId | firstName | lastName | email | id | companieRole | companieId | companieName |
+---------------------------+-----------+--------------------+---------------------------+---------------------------+--------------+---------------------------+-------------------+
| cjjt9s9iw037f0748raxmnnde | henry | pierrot | [email protected] | cjtuflye81dwt0748e4hnkiv0 | OWNER | cjtuflye71dws0748r7vtuqmg | leclerc |
Use Ctrl + D to use multi word edit of same words in Windows and Linux.
Use CMD + D for Mac.
Why reinvent the wheel? The C standard library (available in C++ as well) has a function that does exactly this:
char* p;
long converted = strtol(s, &p, 10);
if (*p) {
// conversion failed because the input wasn't a number
}
else {
// use converted
}
If you want to handle fractions or scientific notation, go with strtod
instead (you'll get a double
result).
If you want to allow hexadecimal and octal constants in C/C++ style ("0xABC"
), then make the last parameter 0
instead.
Your function then can be written as
bool isParam(string line)
{
char* p;
strtol(line.c_str(), &p, 10);
return *p == 0;
}
this should work:
for numbers, strings, date, etc.:
public static void MyMethod(object obj)
{
if (typeof(IDictionary).IsAssignableFrom(obj.GetType()))
{
IDictionary idict = (IDictionary)obj;
Dictionary<string, string> newDict = new Dictionary<string, string>();
foreach (object key in idict.Keys)
{
newDict.Add(key.ToString(), idict[key].ToString());
}
}
else
{
// My object is not a dictionary
}
}
if your dictionary also contains some other objects:
public static void MyMethod(object obj)
{
if (typeof(IDictionary).IsAssignableFrom(obj.GetType()))
{
IDictionary idict = (IDictionary)obj;
Dictionary<string, string> newDict = new Dictionary<string, string>();
foreach (object key in idict.Keys)
{
newDict.Add(objToString(key), objToString(idict[key]));
}
}
else
{
// My object is not a dictionary
}
}
private static string objToString(object obj)
{
string str = "";
if (obj.GetType().FullName == "System.String")
{
str = (string)obj;
}
else if (obj.GetType().FullName == "test.Testclass")
{
TestClass c = (TestClass)obj;
str = c.Info;
}
return str;
}
Take a look at this answer:
from numpy import matrix
from numpy import linalg
A = matrix( [[1,2,3],[11,12,13],[21,22,23]]) # Creates a matrix.
x = matrix( [[1],[2],[3]] ) # Creates a matrix (like a column vector).
y = matrix( [[1,2,3]] ) # Creates a matrix (like a row vector).
print A.T # Transpose of A.
print A*x # Matrix multiplication of A and x.
print A.I # Inverse of A.
print linalg.solve(A, x) # Solve the linear equation system.
JSONArray
has a constructor which takes a String
source (presumed to be an array).
So something like this
JSONArray array = new JSONArray(yourJSONArrayAsString);
All Func delegates return something; all the Action delegates return void.
Func<TResult>
takes no arguments and returns TResult:
public delegate TResult Func<TResult>()
Action<T>
takes one argument and does not return a value:
public delegate void Action<T>(T obj)
Action
is the simplest, 'bare' delegate:
public delegate void Action()
There's also Func<TArg1, TResult>
and Action<TArg1, TArg2>
(and others up to 16 arguments). All of these (except for Action<T>
) are new to .NET 3.5 (defined in System.Core).
You can use setattr
name = 'varname'
value = 'something'
setattr(self, name, value) #equivalent to: self.varname= 'something'
print (self.varname)
#will print 'something'
But, since you should inform an object to receive the new variable, this only works inside classes or modules.
Have a look at py-multicast. Network module can check if an interface supports multicast (on Linux at least).
import multicast
from multicast import network
receiver = multicast.MulticastUDPReceiver ("eth0", "238.0.0.1", 1234 )
data = receiver.read()
receiver.close()
config = network.ifconfig()
print config['eth0'].addresses
# ['10.0.0.1']
print config['eth0'].multicast
#True - eth0 supports multicast
print config['eth0'].up
#True - eth0 is up
Perhaps problems with not seeing IGMP, were caused by an interface not supporting multicast?
This sounds like a similar issue with ReSharper:
http://www.jetbrains.net/devnet/thread/275827
According to one user in the thread forcing a build fixes the issue (CTRL+Shift+B) after the first build..
Sounds like an issue with ReSharper specifically in their case.. Have you tried building regardless of the warnings and possible false errors?
not sure if anyone notice it may be correct to return a 301 but browsers choke on it to doing
rewrite ^(.*)$ https://yoursite.com$1;
is faster than:
return 301 $scheme://yoursite.com$request_uri;
If you have issue with writing into an existing xls file because it is already created you need to put checking part like below:
PATH='filename.xlsx'
if os.path.isfile(PATH):
print "File exists and will be overwrite NOW"
else:
print "The file is missing, new one is created"
... and here part with the data you want to add
This should work for you
public class MyActivity extends Activity {
protected ProgressDialog mProgressDialog;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
populateTable();
}
private void populateTable() {
mProgressDialog = ProgressDialog.show(this, "Please wait","Long operation starts...", true);
new Thread() {
@Override
public void run() {
doLongOperation();
try {
// code runs in a thread
runOnUiThread(new Runnable() {
@Override
public void run() {
mProgressDialog.dismiss();
}
});
} catch (final Exception ex) {
Log.i("---","Exception in thread");
}
}
}.start();
}
/** fake operation for testing purpose */
protected void doLongOperation() {
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
}
}
}
Just declare variable outside of scope of any js function. Such variables will be global.
start = as.POSIXct("2017-09-01")
end = as.POSIXct("2017-09-06")
dat = data.frame(Date = seq.POSIXt(from = start,
to = end,
by = "DSTday"))
# see ?strptime for details of formats you can extract
# day of the week as numeric (Monday is 1)
dat$weekday1 = as.numeric(format(dat$Date, format = "%u"))
# abbreviated weekday name
dat$weekday2 = format(dat$Date, format = "%a")
# full weekday name
dat$weekday3 = format(dat$Date, format = "%A")
dat
# returns
Date weekday1 weekday2 weekday3
1 2017-09-01 5 Fri Friday
2 2017-09-02 6 Sat Saturday
3 2017-09-03 7 Sun Sunday
4 2017-09-04 1 Mon Monday
5 2017-09-05 2 Tue Tuesday
6 2017-09-06 3 Wed Wednesday
Use something like this in case you also want to output products details per date as JSON and the MySQL
version does not support JSON
functions.
SELECT `date`,
CONCAT('{',GROUP_CONCAT('{\"id\": \"',`product_id`,'\",\"name\": \"',`product_name`,'\"}'),'}') as `productsJSON`
FROM `buy` group by `date`
order by `date` DESC
product_id product_name date
| 1 | azd | 2011-12-12 |
| 2 | xyz | 2011-12-12 |
| 3 | ase | 2011-12-11 |
| 4 | azwed | 2011-12-11 |
| 5 | wed | 2011-12-10 |
| 6 | cvg | 2011-12-10 |
| 7 | cvig | 2011-12-09 |
RESULT
date productsJSON
2011-12-12T00:00:00Z {{"id": "1","name": "azd"},{"id": "2","name": "xyz"}}
2011-12-11T00:00:00Z {{"id": "3","name": "ase"},{"id": "4","name": "azwed"}}
2011-12-10T00:00:00Z {{"id": "5","name": "wed"},{"id": "6","name": "cvg"}}
2011-12-09T00:00:00Z {{"id": "7","name": "cvig"}}
Try it out in SQL Fiddle
If you are using a MySQL
version that supports JSON
functions then the above query could be re-written:
SELECT `date`,JSON_OBJECTAGG(CONCAT('product-',`product_id`),JSON_OBJECT('id', `product_id`, 'name', `product_name`)) as `productsJSON`
FROM `buy` group by `date`
order by `date` DESC;
Try both in DB Fiddle
I faced the same problem and try to solve, but unfortunately it wouldn't work anymore ! If you are facing the same problem and can't find the solution, it may help you.
If you configure jquery/jquery-ui globally in webpack, you need to import autocomplete like this
import { autocomplete } from 'webpack-jquery-ui';
And you must include jquery-ui.css in the head section of html, i don't understand why its not working without it!
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
Hope your problem will be solved.
And make sure you include/install the following three
Why not map the network drive but deselect "Reconnect at logon"? The drive will only connect when you try to access it. Note that some applications will fail if they point to it, but if you're accessing files directly through Windows Explorer this works great.
Do right thing, do thing right!
--->Zero Open your terminal,
--Firstly input python -V
, It likely shows:
Python 2.7.10
-Secondly input python3 -V
, It likely shows:
Python 3.7.2
--Thirdly input where python
or which python
, It likely shows:
/usr/bin/python
---Fourthly input where python3
or which python3
, It likely shows:
/usr/local/bin/python3
--Fifthly add the following line at the bottom of your PATH environment variable file in ~/.profile file or ~/.bash_profile
under Bash or ~/.zshrc
under zsh.
alias python='/usr/local/bin/python3'
OR
alias python=python3
-Sixthly input source ~/.bash_profile
under Bash or source ~/.zshrc
under zsh.
--Seventhly Quit the terminal.
---Eighthly Open your terminal, and input python -V
, It likely shows:
Python 3.7.2
I had done successfully try it.
Others, the ~/.bash_profile
under zsh is not that ~/.bash_profile
.
The PATH environment variable under zsh instead ~/.profile
(or ~/.bash_file
) via ~/.zshrc
.
Help you guys!
I tried all above steps to resolve the problem but nothing worked. I had installed both JDK and JRE.
In my case, one jar file was being opened by double click while other was not being opened. I examined those files and the probable reason was that which was being opened, was created using JAVA SE 6 and the one not being opened was created using JAVA SE 7. Although, the problematic jar file was being run via command prompt (java -jar myfile.jar).
I tried Right Click -> Properties -> Change to javaw.exe with both in JDK\bin directory and JRE\bin directory.
I was finally able to fix the problem by changing javaw.exe path (from JDK\bin to JRE\bin) in registry editor.
Go to HKEY_CLASSES_ROOT\jarfile\shell\open\command, the value was,
"C:\Program Files\Java\jdk-11.0.1\bin\javaw.exe" -jar "%1" %*
I changed it to,
"C:\Program Files\Java\jre1.8.0_191\bin\javaw.exe" -jar "%1" %*
and it worked. Now the jar file can be opened by double click.
What you may want to do is include a script on all pages that does the following ... 1. find the youtube-iframe : searching for it by width and height by title or by finding www.youtube.com in its source. You can do that by ... - looping through the window.frames by a for-in loop and then filter out by the properties
inject jscript in the iframe of the current page adding the onYoutubePlayerReady must-include-function http://shazwazza.com/post/Injecting-JavaScript-into-other-frames.aspx
Add the event listeners etc..
Hope this helps
I guess this can be due to many things. In my case it was having "WHERE id IN" condition in my query and I was setting IDs separated by dash as a string using setString method on PreparedStatement.
Not sure if there is better way to do this but I just added placeholder in my statement and replaced it by values on my own.
work fine for me ,change ids according to you requirement.
$("#FormId select#status_id_new").val('');
$("#FormId select#status_id_new").multiselect("refresh");
Resolved the issue... you need to add the ssh public key to your github account.
ssh-keygen
~/.ssh/id_rsa
)~/.ssh/id_rsa.pub
) to github account git clone
. It works!
Initial status (public key not added to git hub account)
foo@bn18-251:~$ rm -rf test foo@bn18-251:~$ ls foo@bn18-251:~$ git clone [email protected]:devendra-d-chavan/test.git Cloning into 'test'... Permission denied (publickey). fatal: The remote end hung up unexpectedly foo@bn18-251:~$
Now, add the public key ~/.ssh/id_rsa.pub
to the github account (I used cat ~/.ssh/id_rsa.pub
)
foo@bn18-251:~$ ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/home/foo/.ssh/id_rsa): Created directory '/home/foo/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/foo/.ssh/id_rsa. Your public key has been saved in /home/foo/.ssh/id_rsa.pub. The key fingerprint is: xxxxx The key's randomart image is: +--[ RSA 2048]----+ xxxxx +-----------------+ foo@bn18-251:~$ cat ./.ssh/id_rsa.pub xxxxx foo@bn18-251:~$ git clone [email protected]:devendra-d-chavan/test.git Cloning into 'test'... The authenticity of host 'github.com (207.97.227.239)' can't be established. RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'github.com,207.97.227.239' (RSA) to the list of known hosts. Enter passphrase for key '/home/foo/.ssh/id_rsa': warning: You appear to have cloned an empty repository. foo@bn18-251:~$ ls test foo@bn18-251:~/test$ git status # On branch master # # Initial commit # nothing to commit (create/copy files and use "git add" to track)
You are looking for the OS native module for Node.js:
v4: https://nodejs.org/dist/latest-v4.x/docs/api/os.html#os_os_platform
or v5 : https://nodejs.org/dist/latest-v5.x/docs/api/os.html#os_os_platform
os.platform()
Returns the operating system platform. Possible values are 'darwin', 'freebsd', 'linux', 'sunos' or 'win32'. Returns the value of process.platform.
I had an issue with R 2.15.3 whereby while trying to create a tree structure recursively on a shared network drive I would get a permission error.
To get around this oddity I manually create the structure;
mkdirs <- function(fp) {
if(!file.exists(fp)) {
mkdirs(dirname(fp))
dir.create(fp)
}
}
mkdirs("H:/foo/bar")
Take care that you also execute your Node script from the ROOT folder.
E.g. I was using a testing script in a subfolder called ./bin/test.js
.
Calling it like: node ./bin/test.js
worked totally fine.
Calling it from the subfolder like:
$ pwd
./bin
$ node ./test.js
causes dotenv
to not find my ./.env
file.
You can also sort the column by importing the spark sql functions
import org.apache.spark.sql.functions._
df.orderBy(asc("col1"))
Or
import org.apache.spark.sql.functions._
df.sort(desc("col1"))
importing sqlContext.implicits._
import sqlContext.implicits._
df.orderBy($"col1".desc)
Or
import sqlContext.implicits._
df.sort($"col1".desc)
If you want to sum the digit of a number, one way to do it is using sum()
+ a generator expression:
sum(int(i) for i in str(155))
I modified a little your code using sum()
, maybe you want to take a look at it:
birthday = raw_input("When is your birthday(mm/dd/yyyy)? ")
summ = sum(int(i) for i in birthday[0:2])
sumd = sum(int(i) for i in birthday[3:5])
sumy = sum(int(i) for i in birthday[6:10])
sumall = summ + sumd + sumy
print "The sum of your numbers is", sumall
sumln = sum(int(c) for c in str(sumall)))
print "Your lucky number is", sumln
You may be trying to use a JSON object:
var myMappings = { "name": "10%", "phone": "10%", "address": "50%", etc.. }
To access:
myMappings.name;
myMappings.phone;
etc..
net stop <your service> && net start <your service>
No net restart
, unfortunately.
A possibly simpler alternative to editing the ssh config file (as suggested in all other answers), is to configure an individual repository to use a different (e.g. non-default) ssh key.
Inside the repository for which you want to use a different key, run:
git config core.sshCommand 'ssh -i ~/.ssh/id_rsa_anotheraccount'
If your key is passhprase-protected and you don't want to type your password every time, you have to add it to the ssh-agent. Here's how to do it for ubuntu and here for macOS.
It should also be possible to scale this approach to multiple repositories using global git config and conditional includes (see example).
Typical Java programs compile into .jar files, which can be executed like .exe files provided the target machine has Java installed and that Java is in its PATH. From Eclipse you use the Export menu item from the File menu.
Can you guarantee that the BigDecimal
will never contain a value larger than Integer.MAX_VALUE
?
If yes, then here's your code calling intValue
:
Integer.valueOf(bdValue.intValue())
Run docker login
Push the image to docker hub
Re-create pod
This solved the problem for me. Hope it helps.
Here is what I did
private void myEvent_Handler(object sender, SomeEvent e)
{
// I dont know how many times this event will fire
Task t = new Task(() =>
{
if (something == true)
{
DoSomething(e);
}
});
t.RunSynchronously();
}
working great and not blocking UI thread
Before I show you how to reload / refresh model data from the server programmatically? I have to explain for you the concept of Data Binding. This is an extremely powerful concept that will truly revolutionize the way you develop. So may be you have to read about this concept from this link or this seconde link in order to unterstand how AngularjS work.
now I'll show you a sample example that exaplain how can you update your model from server.
HTML Code:
<div ng-controller="PersonListCtrl">
<ul>
<li ng-repeat="person in persons">
Name: {{person.name}}, Age {{person.age}}
</li>
</ul>
<button ng-click="updateData()">Refresh Data</button>
</div>
So our controller named: PersonListCtrl and our Model named: persons. go to your Controller js in order to develop the function named: updateData()
that will be invoked when we are need to update and refresh our Model persons.
Javascript Code:
app.controller('adsController', function($log,$scope,...){
.....
$scope.updateData = function(){
$http.get('/persons').success(function(data) {
$scope.persons = data;// Update Model-- Line X
});
}
});
Now I explain for you how it work:
when user click on button Refresh Data, the server will call to function updateData() and inside this function we will invoke our web service by the function $http.get()
and when we have the result from our ws we will affect it to our model (Line X).Dice that affects the results for our model, our View of this list will be changed with new Data.
See answer from Gary Makin. And you need change the format or data. Because the data that you have do not fit under the chosen format. For example this code works correct:
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "MM-dd-yyyy"
let dateObj = dateFormatter.dateFromString("10 10 2001")
print("Dateobj: \(dateObj)")
You can add parameter columns or use dict
with key which is converted to column name:
np.random.seed(123)
e = np.random.normal(size=10)
dataframe=pd.DataFrame(e, columns=['a'])
print (dataframe)
a
0 -1.085631
1 0.997345
2 0.282978
3 -1.506295
4 -0.578600
5 1.651437
6 -2.426679
7 -0.428913
8 1.265936
9 -0.866740
e_dataframe=pd.DataFrame({'a':e})
print (e_dataframe)
a
0 -1.085631
1 0.997345
2 0.282978
3 -1.506295
4 -0.578600
5 1.651437
6 -2.426679
7 -0.428913
8 1.265936
9 -0.866740
It appears to me that RFC 2616 does not specify this.
From section 4.3:
The presence of a message-body in a request is signaled by the inclusion of a Content-Length or Transfer-Encoding header field in the request's message-headers. A message-body MUST NOT be included in a request if the specification of the request method (section 5.1.1) does not allow sending an entity-body in requests. A server SHOULD read and forward a message-body on any request; if the request method does not include defined semantics for an entity-body, then the message-body SHOULD be ignored when handling the request.
And section 9.7:
The DELETE method requests that the origin server delete the resource identified by the Request-URI. This method MAY be overridden by human intervention (or other means) on the origin server. The client cannot be guaranteed that the operation has been carried out, even if the status code returned from the origin server indicates that the action has been completed successfully. However, the server SHOULD NOT indicate success unless, at the time the response is given, it intends to delete the resource or move it to an inaccessible location.
A successful response SHOULD be 200 (OK) if the response includes an entity describing the status, 202 (Accepted) if the action has not yet been enacted, or 204 (No Content) if the action has been enacted but the response does not include an entity.
If the request passes through a cache and the Request-URI identifies one or more currently cached entities, those entries SHOULD be treated as stale. Responses to this method are not cacheable.c
So it's not explicitly allowed or disallowed, and there's a chance that a proxy along the way might remove the message body (although it SHOULD read and forward it).
Old fashioned and big code but efficient as possible:
function replaceLast(origin,text){
textLenght = text.length;
originLen = origin.length
if(textLenght == 0)
return origin;
start = originLen-textLenght;
if(start < 0){
return origin;
}
if(start == 0){
return "";
}
for(i = start; i >= 0; i--){
k = 0;
while(origin[i+k] == text[k]){
k++
if(k == textLenght)
break;
}
if(k == textLenght)
break;
}
//not founded
if(k != textLenght)
return origin;
//founded and i starts on correct and i+k is the first char after
end = origin.substring(i+k,originLen);
if(i == 0)
return end;
else{
start = origin.substring(0,i)
return (start + end);
}
}
Sometimes you need to apply a function to the members of a list in place. The following code worked for me:
>>> def func(a, i):
... a[i] = a[i].lower()
>>> a = ['TEST', 'TEXT']
>>> list(map(lambda i:func(a, i), range(0, len(a))))
[None, None]
>>> print(a)
['test', 'text']
Please note, the output of map() is passed to the list constructor to ensure the list is converted in Python 3. The returned list filled with None values should be ignored, since our purpose was to convert list a in place
The best solution is to save a Boolean value in the database and then obtain that value and validate whether or not the modal was opened for that user, this value could be in the user table for example.
If you're setting the button text by using the 'value' attribute you'll need to set
instead of:
Also in my situation it worked better to add the JQuery direct to the onclick event of the button:
onclick="$(this).val(function (i, text) { return text == 'PUSH ME' ? 'DON'T PUSH ME' : 'PUSH ME'; });"
As amaud576875 said, the \r
escape sequence signifies a carriage-return, similar to pressing the Enter key. However, I'm not sure how you get "o world"; you should (and I do) get "my first hello world" and then a new line. Depending on what operating system you're using (I'm using Mac) you might want to use a \n
instead of a \r
.
It seems to me, that it is by design that this file is empty.
A similar question has been asked here: https://stackoverflow.com/questions/2567432/ubuntu-apache-httpd-conf-or-apache2-conf
So, you should have a look for /etc/apache2/apache2.conf
Quick and dirty:
#!/usr/bin/perl -w
use strict;
open(FILE, "</tmp/yourfile.txt") || die "File not found";
my @lines = <FILE>;
close(FILE);
foreach(@lines) {
$_ =~ s/<PREF>/ABCD/g;
}
open(FILE, ">/tmp/yourfile.txt") || die "File not found";
print FILE @lines;
close(FILE);
Perhaps it i a good idea not to write the result back to your original file; instead write it to a copy and check the result first.
Towards the second half of Create REST API using ASP.NET MVC that speaks both JSON and plain XML, to quote:
Now we need to accept JSON and XML payload, delivered via HTTP POST. Sometimes your client might want to upload a collection of objects in one shot for batch processing. So, they can upload objects using either JSON or XML format. There's no native support in ASP.NET MVC to automatically parse posted JSON or XML and automatically map to Action parameters. So, I wrote a filter that does it."
He then implements an action filter that maps the JSON to C# objects with code shown.
@ user2310334 I just tried this, a VERY basic example:
HTML file
<!DOCTYPE html>
<html lang="en" ng-app="app">
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.6/angular.min.js" type="text/javascript"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.6/angular-route.min.js" type="text/javascript"></script>
<script src="./app.js" type="text/javascript"></script>
</head>
<body>
<div ng-controller="MailDetailCtrl">
</div>
</body>
</html>
The javascript file:
var myApp= angular.module('app', ['ngRoute']);
myApp.factory('mailService' , function () {
return {
getData : function(){
var employees = [{name: 'John Doe', id: '1'},
{name: 'Mary Homes', id: '2'},
{name: 'Chris Karl', id: '3'}
];
return employees;
}
};
});
myApp.controller('MailDetailCtrl',['$scope', 'mailService', function($scope, mailService) {
alert(mailService.getData()[0].name);
}]);
And it works. Try it.
This is a very fast solution for one-dimensional atomic vectors. It relies on match()
, so it is compatible with NA
:
x <- c("a", NA, "a", "c", "a", "b", NA, "c")
fn <- function(x) {
u <- unique.default(x)
out <- list(x = u, freq = .Internal(tabulate(match(x, u), length(u))))
class(out) <- "data.frame"
attr(out, "row.names") <- seq_along(u)
out
}
fn(x)
#> x freq
#> 1 a 3
#> 2 <NA> 2
#> 3 c 2
#> 4 b 1
You could also tweak the algorithm so that it doesn't run unique()
.
fn2 <- function(x) {
y <- match(x, x)
out <- list(x = x, freq = .Internal(tabulate(y, length(x)))[y])
class(out) <- "data.frame"
attr(out, "row.names") <- seq_along(x)
out
}
fn2(x)
#> x freq
#> 1 a 3
#> 2 <NA> 2
#> 3 a 3
#> 4 c 2
#> 5 a 3
#> 6 b 1
#> 7 <NA> 2
#> 8 c 2
In cases where that output is desirable, you probably don't even need it to re-return the original vector, and the second column is probably all you need. You can get that in one line with the pipe:
match(x, x) %>% `[`(tabulate(.), .)
#> [1] 3 2 3 2 3 1 2 2
You can use this:
SET FEEDBACK OFF;
SET SERVEROUTPUT ON;
DECLARE
V_START_DATE CHAR(17) := '28/03/16 17:20:00';
V_END_DATE CHAR(17) := '30/03/16 17:50:10';
V_DATE_DIFF VARCHAR2(17);
BEGIN
SELECT
(TO_NUMBER( SUBSTR(NUMTODSINTERVAL(TO_DATE(V_END_DATE , 'DD/MM/YY HH24:MI:SS') - TO_DATE(V_START_DATE, 'DD/MM/YY HH24:MI:SS'), 'DAY'), 02, 9)) * 24) +
(TO_NUMBER( SUBSTR(NUMTODSINTERVAL(TO_DATE(V_END_DATE , 'DD/MM/YY HH24:MI:SS') - TO_DATE(V_START_DATE, 'DD/MM/YY HH24:MI:SS'), 'DAY'), 12, 2))) ||
SUBSTR(NUMTODSINTERVAL(TO_DATE(V_END_DATE , 'DD/MM/YY HH24:MI:SS') - TO_DATE(V_START_DATE, 'DD/MM/YY HH24:MI:SS'), 'DAY'), 14, 6) AS "HH24:MI:SS"
INTO V_DATE_DIFF
FROM
DUAL;
DBMS_OUTPUT.PUT_LINE(V_DATE_DIFF);
END;
On newer versions of Windows (Windows 10 and Windows Server 2016) the tasks you create are located in C:\Windows\Tasks
. They will have the extension .job
For example if you create the task "DoWork" it will create the task in
C:\Windows\Tasks\DoWork.job
I would like to extend Mohamed Elrashid answer, in case you require to pass a variable from the child widget to the parent widget
On child widget:
class ChildWidget extends StatefulWidget {
final Function() notifyParent;
ChildWidget({Key key, @required this.notifyParent}) : super(key: key);
}
On parent widget
void refresh(dynamic childValue) {
setState(() {
_parentVariable = childValue;
});
}
On parent widget: pass the function above to the child widget
new ChildWidget( notifyParent: refresh );
On child widget: call the parent function with any variable from the the child widget
widget.notifyParent(childVariable);
Just use this one, You have to use more when they are classes.
SELECT Url='',
p.ArtNo,
p.[Description],
p.Specification,
CASE
WHEN 1 = 1 or 1 = 1
THEN 1
WHEN 2 = 2
THEN 2
WHEN 3 = 3
THEN 3
ELSE 0
END as Qty,
p.NetPrice,
[Status] = 0
FROM Product p (NOLOCK)
If installed via apt-get
in Ubuntu 12.04, don't forget to chown -R mongodb:nogroup /path/to/new/directory
. Also, change the configuration at /etc/mongodb.conf
.
As a reminder, the mongodb-10gen
package is now started via upstart, so the config script is in /etc/init/mongodb.conf
I just went through this, hope googlers find it useful :)
There are multiple number groups and some particular numbers that will never be allocated:
Consider using one of these (the obviously invalid 000-00-0000 would be a good one IMO).
(Answer has been updated to provide source information beyond Wikipedia and remove information that is no longer accurate after the SSA made its randomization change in mid 2011.)
The above answeres have the following problems:
To avoid these, do the following:
go get -d
Use the package plyr with lapply to get frequencies for every value (level) and every variable (factor) in your data frame.
library(plyr)
lapply(df, count)
One thing I discovered is that using the \include command will often insert and extra blank page. Riffing on the previous trick with the \let command, I inserted \let\include\input near the beginning of the document, and that got rid of most of the excessive blank pages.
A Looper has a synchronized
MessageQueue
that's used to process Messages placed on the queue.
It implements a Thread
Specific Storage Pattern.
Only one Looper
per Thread
. Key methods include prepare()
,loop()
and quit()
.
prepare()
initializes the current Thread
as a Looper
. prepare()
is static
method that uses the ThreadLocal
class as shown below.
public static void prepare(){
...
sThreadLocal.set
(new Looper());
}
prepare()
must be called explicitly before running the event loop. loop()
runs the event loop which waits for Messages to arrive on a specific Thread's messagequeue. Once the next Message is received,the loop()
method dispatches the Message to its target handlerquit()
shuts down the event loop. It doesn't terminate the loop,but instead it enqueues a special messageLooper
can be programmed in a Thread
via several steps
Extend Thread
Call Looper.prepare()
to initialize Thread as a Looper
Create one or more Handler
(s) to process the incoming messages
Looper.loop()
to process messages until the loop is told to quit()
. The actual question posed, missed by most answers here is:
del df.column_name
?At first we need to understand the problem, which requires us to dive into python magic methods.
As Wes points out in his answer del df['column']
maps to the python magic method df.__delitem__('column')
which is implemented in pandas to drop the column
However, as pointed out in the link above about python magic methods:
In fact,
__del__
should almost never be used because of the precarious circumstances under which it is called; use it with caution!
You could argue that del df['column_name']
should not be used or encouraged, and thereby del df.column_name
should not even be considered.
However, in theory, del df.column_name
could be implemeted to work in pandas using the magic method __delattr__
. This does however introduce certain problems, problems which the del df['column_name']
implementation already has, but in lesser degree.
What if I define a column in a dataframe called "dtypes" or "columns".
Then assume I want to delete these columns.
del df.dtypes
would make the __delattr__
method confused as if it should delete the "dtypes" attribute or the "dtypes" column.
.ix
, .loc
or .iloc
methods.You cannot do del df.column_name
because pandas has a quite wildly grown architecture that needs to be reconsidered in order for this kind of cognitive dissonance not to occur to its users.
Don't use df.column_name, It may be pretty, but it causes cognitive dissonance
There are multiple ways of deleting a column.
There should be one-- and preferably only one --obvious way to do it.
Columns are sometimes attributes but sometimes not.
Special cases aren't special enough to break the rules.
Does del df.dtypes
delete the dtypes attribute or the dtypes column?
In the face of ambiguity, refuse the temptation to guess.
If you're dealing with natural language text and need to replace a word, not just part of a string, you have to add a pinch of regular expressions to your gsub as a plain text substitution can lead to disastrous results:
'mislocated cat, vindicating'.gsub('cat', 'dog')
=> "mislodoged dog, vindidoging"
Regular expressions have word boundaries, such as \b
which matches start or end of a word. Thus,
'mislocated cat, vindicating'.gsub(/\bcat\b/, 'dog')
=> "mislocated dog, vindicating"
In Ruby, unlike some other languages like Javascript, word boundaries are UTF-8-compatible, so you can use it for languages with non-Latin or extended Latin alphabets:
'???? ? ??????, ??? ??????'.gsub(/\b????\b/, '?????')
=> "????? ? ??????, ??? ??????"
This allows you to do exactly that
NPM: https://www.npmjs.com/package/stringinject
GitHub: https://github.com/tjcafferkey/stringinject
By doing the following:
var str = stringInject("My username is {username} on {platform}", { username: "tjcafferkey", platform: "GitHub" });
// My username is tjcafferkey on Git
In order to clarify the question, I would rather categorize the usage of 'static' keyword in three different forms:
(A). variables
(B). functions
(C). member variables/functions of classes
the explanation follows below for each of the sub headings:
(A) 'static' keyword for variables
This one can be little tricky however if explained and understood properly, it's pretty straightforward.
To explain this, first it is really useful to know about the scope, duration and linkage of variables, without which things are always difficult to see through the murky concept of staic keyword
1. Scope : Determines where in the file, the variable is accessible. It can be of two types: (i) Local or Block Scope. (ii) Global Scope
2. Duration : Determines when a variable is created and destroyed. Again it's of two types: (i) Automatic Storage Duration (for variables having Local or Block scope). (ii) Static Storage Duration (for variables having Global Scope or local variables (in a function or a in a code block) with static specifier).
3. Linkage: Determines whether a variable can be accessed (or linked ) in another file. Again ( and luckily) it is of two types: (i) Internal Linkage (for variables having Block Scope and Global Scope/File Scope/Global Namespace scope) (ii) External Linkage (for variables having only for Global Scope/File Scope/Global Namespace Scope)
Let's refer an example below for better understanding of plain global and local variables (no local variables with static storage duration) :
//main file
#include <iostream>
int global_var1; //has global scope
const global_var2(1.618); //has global scope
int main()
{
//these variables are local to the block main.
//they have automatic duration, i.e, they are created when the main() is
// executed and destroyed, when main goes out of scope
int local_var1(23);
const double local_var2(3.14);
{
/* this is yet another block, all variables declared within this block are
have local scope limited within this block. */
// all variables declared within this block too have automatic duration, i.e,
/*they are created at the point of definition within this block,
and destroyed as soon as this block ends */
char block_char1;
int local_var1(32) //NOTE: this has been re-declared within the block,
//it shadows the local_var1 declared outside
std::cout << local_var1 <<"\n"; //prints 32
}//end of block
//local_var1 declared inside goes out of scope
std::cout << local_var1 << "\n"; //prints 23
global_var1 = 29; //global_var1 has been declared outside main (global scope)
std::cout << global_var1 << "\n"; //prints 29
std::cout << global_var2 << "\n"; //prints 1.618
return 0;
} //local_var1, local_var2 go out of scope as main ends
//global_var1, global_var2 go out of scope as the program terminates
//(in this case program ends with end of main, so both local and global
//variable go out of scope together
Now comes the concept of Linkage. When a global variable defined in one file is intended to be used in another file, the linkage of the variable plays an important role.
The Linkage of global variables is specified by the keywords: (i) static , and, (ii) extern
( Now you get the explanation )
static keyword can be applied to variables with local and global scope, and in both the cases, they mean different things. I will first explain the usage of 'static' keyword in variables with global scope ( where I also clarify the usage of keyword 'extern') and later the for those with local scope.
Global variables have static duration, meaning they don't go out of scope when a particular block of code (for e.g main() ) in which it is used ends . Depending upon the linkage, they can be either accessed only within the same file where they are declared (for static global variable), or outside the file even outside the file in which they are declared (extern type global variables)
In the case of a global variable having extern specifier, and if this variable is being accessed outside the file in which it has been initialized, it has to be forward declared in the file where it's being used, just like a function has to be forward declared if it's definition is in a file different from where it's being used.
In contrast, if the global variable has static keyword, it cannot be used in a file outside of which it has been declared.
(see example below for clarification)
eg:
//main2.cpp
static int global_var3 = 23; /*static global variable, cannot be
accessed in anyother file */
extern double global_var4 = 71; /*can be accessed outside this file linked to main2.cpp */
int main() { return 0; }
main3.cpp
//main3.cpp
#include <iostream>
int main()
{
extern int gloabl_var4; /*this variable refers to the gloabal_var4
defined in the main2.cpp file */
std::cout << global_var4 << "\n"; //prints 71;
return 0;
}
now any variable in c++ can be either a const or a non-const and for each 'const-ness' we get two case of default c++ linkage, in case none is specified:
(i) If a global variable is non-const, its linkage is extern by default, i.e, the non-const global variable can be accessed in another .cpp file by forward declaration using the extern keyword (in other words, non const global variables have external linkage ( with static duration of course)). Also usage of extern keyword in the original file where it has been defined is redundant. In this case to make a non-const global variable inaccessible to external file, use the specifier 'static' before the type of the variable.
(ii) If a global variable is const, its linkage is static by default, i.e a const global variable cannot be accessed in a file other than where it is defined, (in other words, const global variables have internal linkage (with static duration of course)). Also usage of static keyword to prevent a const global variable from being accessed in another file is redundant. Here, to make a const global variable have an external linkage, use the specifier 'extern' before the type of the variable
Here's a summary for global scope variables with various linkages
//globalVariables1.cpp
// defining uninitialized vairbles
int globalVar1; // uninitialized global variable with external linkage
static int globalVar2; // uninitialized global variable with internal linkage
const int globalVar3; // error, since const variables must be initialized upon declaration
const int globalVar4 = 23; //correct, but with static linkage (cannot be accessed outside the file where it has been declared*/
extern const double globalVar5 = 1.57; //this const variable ca be accessed outside the file where it has been declared
Next we investigate how the above global variables behave when accessed in a different file.
//using_globalVariables1.cpp (eg for the usage of global variables above)
// Forward declaration via extern keyword:
extern int globalVar1; // correct since globalVar1 is not a const or static
extern int globalVar2; //incorrect since globalVar2 has internal linkage
extern const int globalVar4; /* incorrect since globalVar4 has no extern
specifier, limited to internal linkage by
default (static specifier for const variables) */
extern const double globalVar5; /*correct since in the previous file, it
has extern specifier, no need to initialize the
const variable here, since it has already been
legitimately defined perviously */
Updates (August 2019) on static keyword for variables in local scope
This further can be subdivided in two categories :
(i) static keyword for variables within a function block, and (ii) static keyword for variables within a unnamed local block.
(i) static keyword for variables within a function block.
Earlier, I mentioned that variables with local scope have automatic duration, i.e they come to exist when the block is entered ( be it a normal block, be it a function block) and cease to exist when the block ends, long story short, variables with local scope have automatic duration and automatic duration variables (and objects) have no linkage meaning they are not visible outside the code block.
If static specifier is applied to a local variable within a function block, it changes the duration of the variable from automatic to static and its life time is the entire duration of the program which means it has a fixed memory location and its value is initialized only once prior to program start up as mentioned in cpp reference(initialization should not be confused with assignment)
lets take a look at an example.
//localVarDemo1.cpp
int localNextID()
{
int tempID = 1; //tempID created here
return tempID++; //copy of tempID returned and tempID incremented to 2
} //tempID destroyed here, hence value of tempID lost
int newNextID()
{
static int newID = 0;//newID has static duration, with internal linkage
return newID++; //copy of newID returned and newID incremented by 1
} //newID doesn't get destroyed here :-)
int main()
{
int employeeID1 = localNextID(); //employeeID1 = 1
int employeeID2 = localNextID(); // employeeID2 = 1 again (not desired)
int employeeID3 = newNextID(); //employeeID3 = 0;
int employeeID4 = newNextID(); //employeeID4 = 1;
int employeeID5 = newNextID(); //employeeID5 = 2;
return 0;
}
Looking at the above criterion for static local variables and static global variables, one might be tempted to ask, what the difference between them could be. While global variables are accessible at any point in within the code (in same as well as different translation unit depending upon the const-ness and extern-ness), a static variable defined within a function block is not directly accessible. The variable has to be returned by the function value or reference. Lets demonstrate this by an example:
//localVarDemo2.cpp
//static storage duration with global scope
//note this variable can be accessed from outside the file
//in a different compilation unit by using `extern` specifier
//which might not be desirable for certain use case.
static int globalId = 0;
int newNextID()
{
static int newID = 0;//newID has static duration, with internal linkage
return newID++; //copy of newID returned and newID incremented by 1
} //newID doesn't get destroyed here
int main()
{
//since globalId is accessible we use it directly
const int globalEmployee1Id = globalId++; //globalEmployeeId1 = 0;
const int globalEmployee2Id = globalId++; //globalEmployeeId1 = 1;
//const int employeeID1 = newID++; //this will lead to compilation error since newID++ is not accessible direcly.
int employeeID2 = newNextID(); //employeeID3 = 0;
int employeeID2 = newNextID(); //employeeID3 = 1;
return 0;
}
More explaination about choice of static global and static local variable could be found on this stackoverflow thread
(ii) static keyword for variables within a unnamed local block.
static variables within a local block (not a function block) cannot be accessed outside the block once the local block goes out of scope. No caveats to this rule.
//localVarDemo3.cpp
int main()
{
{
const static int static_local_scoped_variable {99};
}//static_local_scoped_variable goes out of scope
//the line below causes compilation error
//do_something is an arbitrary function
do_something(static_local_scoped_variable);
return 0;
}
C++11 introduced the keyword constexpr
which guarantees the evaluation of an expression at compile time and allows compiler to optimize the code. Now if the value of a static const variable within a scope is known at compile time, the code is optimized in a manner similar to the one with constexpr
. Here's a small example
I recommend readers also to look up the difference between constexpr
and static const
for variables in this stackoverflow thread.
this concludes my explanation for the static keyword applied to variables.
B. 'static' keyword used for functions
in terms of functions, the static keyword has a straightforward meaning. Here, it refers to linkage of the function Normally all functions declared within a cpp file have external linkage by default, i.e a function defined in one file can be used in another cpp file by forward declaration.
using a static keyword before the function declaration limits its linkage to internal , i.e a static function cannot be used within a file outside of its definition.
C. Staitc Keyword used for member variables and functions of classes
1. 'static' keyword for member variables of classes
I start directly with an example here
#include <iostream>
class DesignNumber
{
private:
static int m_designNum; //design number
int m_iteration; // number of iterations performed for the design
public:
DesignNumber() { } //default constructor
int getItrNum() //get the iteration number of design
{
m_iteration = m_designNum++;
return m_iteration;
}
static int m_anyNumber; //public static variable
};
int DesignNumber::m_designNum = 0; // starting with design id = 0
// note : no need of static keyword here
//causes compiler error if static keyword used
int DesignNumber::m_anyNumber = 99; /* initialization of inclass public
static member */
enter code here
int main()
{
DesignNumber firstDesign, secondDesign, thirdDesign;
std::cout << firstDesign.getItrNum() << "\n"; //prints 0
std::cout << secondDesign.getItrNum() << "\n"; //prints 1
std::cout << thirdDesign.getItrNum() << "\n"; //prints 2
std::cout << DesignNumber::m_anyNumber++ << "\n"; /* no object
associated with m_anyNumber */
std::cout << DesignNumber::m_anyNumber++ << "\n"; //prints 100
std::cout << DesignNumber::m_anyNumber++ << "\n"; //prints 101
return 0;
}
In this example, the static variable m_designNum retains its value and this single private member variable (because it's static) is shared b/w all the variables of the object type DesignNumber
Also like other member variables, static member variables of a class are not associated with any class object, which is demonstrated by the printing of anyNumber in the main function
const vs non-const static member variables in class
(i) non-const class static member variables In the previous example the static members (both public and private) were non constants. ISO standard forbids non-const static members to be initialized in the class. Hence as in previous example, they must be initalized after the class definition, with the caveat that the static keyword needs to be omitted
(ii) const-static member variables of class this is straightforward and goes with the convention of other const member variable initialization, i.e the const static member variables of a class can be initialized at the point of declaration and they can be initialized at the end of the class declaration with one caveat that the keyword const needs to be added to the static member when being initialized after the class definition.
I would however, recommend to initialize the const static member variables at the point of declaration. This goes with the standard C++ convention and makes the code look cleaner
for more examples on static member variables in a class look up the following link from learncpp.com http://www.learncpp.com/cpp-tutorial/811-static-member-variables/
2. 'static' keyword for member function of classes
Just like member variables of classes can ,be static, so can member functions of classes. Normal member functions of classes are always associated with a object of the class type. In contrast, static member functions of a class are not associated with any object of the class, i.e they have no *this pointer.
Secondly since the static member functions of the class have no *this pointer, they can be called using the class name and scope resolution operator in the main function (ClassName::functionName(); )
Thirdly static member functions of a class can only access static member variables of a class, since non-static member variables of a class must belong to a class object.
for more examples on static member functions in a class look up the following link from learncpp.com
http://www.learncpp.com/cpp-tutorial/812-static-member-functions/
Try this
function recursive_array_search($needle,$haystack) {
foreach($haystack as $key=>$value) {
$current_key=$key;
if($needle==$value['uid'] OR (is_array($value) && recursive_array_search($needle,$value) !== false)) {
return $current_key;
}
}
return false;
}
You could also:
handlers = app.logger.handlers
# detach console handler
app.logger.handlers = []
# attach
app.logger.handlers = handlers
They definitely may give different results. The better one is
select count(*) from pg_stat_activity;
It's because it includes connections to WAL sender processes which are treated as regular connections and count towards max_connections
.
See max_wal_senders
I would use nearly the same way but with list as buffer for read integers:
static Object[] readFile(String fileName) {
Scanner scanner = new Scanner(new File(fileName));
List<Integer> tall = new ArrayList<Integer>();
while (scanner.hasNextInt()) {
tall.add(scanner.nextInt());
}
return tall.toArray();
}
Catastrophically bad:
int main(void){
char *s;
int ln;
puts("Enter String");
// scanf("%s", s);
gets(s);
ln = strlen(s); // remove this line to end seg fault
char *dyn_s = (char*) malloc (strlen(s)+1); //strlen(s) is used here as well but doesn't change outcome
dyn_s = s;
dyn_s[strlen(s)] = '\0';
puts(dyn_s);
return 0;
}
Better:
#include <stdio.h>
#define BUF_SIZE 80
int
main(int argc, char *argv[])
{
char s[BUF_SIZE];
int ln;
puts("Enter String");
// scanf("%s", s);
gets(s);
ln = strlen(s); // remove this line to end seg fault
char *dyn_s = (char*) malloc (strlen(s)+1); //strlen(s) is used here as well but doesn't change outcome
dyn_s = s;
dyn_s[strlen(s)] = '\0';
puts(dyn_s);
return 0;
}
Best:
#include <stdio.h>
#define BUF_SIZE 80
int
main(int argc, char *argv[])
{
char s[BUF_SIZE];
int ln;
puts("Enter String");
fgets(s, BUF_SIZE, stdin); // Use fgets (our "cin"): NEVER "gets()"
int ln = strlen(s);
char *dyn_s = (char*) malloc (ln+1);
strcpy (dyn_s, s);
puts(dyn_s);
return 0;
}
Java's regular expressions don't require you to put a forward-slash (/
) or any other delimiter around the regex, as opposed to other languages like Perl, for example.
Array is faster - all memory is pre-allocated in advance.
I see you're having issues with the social share links. I had a similar issue at some point and found this question, but I don't see a complete answer for it. I hope my javascript resolution from below will help:
I had default sharing links that needed to be modified so that the URL that's being shared will have additional UTM parameters concatenated.
My example will be for the Facebook social share link, but it works for all the possible social sharing network links:
The URL that needed to be shared was:
https://mywebsitesite.com/blog/post-name
The default sharing link looked like:
$facebook_default = "https://www.facebook.com/sharer.php?u=https%3A%2F%2mywebsitesite.com%2Fblog%2Fpost-name%2F&t=hello"
I first DECODED it:
console.log( decodeURIComponent($facebook_default) );
=>
https://www.facebook.com/sharer.php?u=https://mywebsitesite.com/blog/post-name/&t=hello
Then I replaced the URL with the encoded new URL (with the UTM parameters concatenated):
console.log( decodeURIComponent($facebook_default).replace( window.location.href, encodeURIComponent(window.location.href+'?utm_medium=social&utm_source=facebook')) );
=>
https://www.facebook.com/sharer.php?u=https%3A%2F%mywebsitesite.com%2Fblog%2Fpost-name%2F%3Futm_medium%3Dsocial%26utm_source%3Dfacebook&t=2018
That's it!
Complete solution:
$facebook_default = $('a.facebook_default_link').attr('href');
$('a.facebook_default_link').attr( 'href', decodeURIComponent($facebook_default).replace( window.location.href, encodeURIComponent(window.location.href+'?utm_medium=social&utm_source=facebook')) );
These messages are rather misleading and understandably a source of confusion. Older Ubuntu versions used Libav which is a fork of the FFmpeg project. FFmpeg returned in Ubuntu 15.04 "Vivid Vervet".
The fork was basically a non-amicable result of conflicting personalities and development styles within the FFmpeg community. It is worth noting that the maintainer for Debian/Ubuntu switched from FFmpeg to Libav on his own accord due to being involved with the Libav fork.
ffmpeg
vs the fake oneFor a while both Libav and FFmpeg separately developed their own version of ffmpeg
.
Libav then renamed their bizarro ffmpeg
to avconv
to distance themselves from the FFmpeg project. During the transition period the "not developed anymore" message was displayed to tell users to start using avconv
instead of their counterfeit version of ffmpeg
. This confused users into thinking that FFmpeg (the project) is dead, which is not true. A bad choice of words, but I can't imagine Libav not expecting such a response by general users.
This message was removed upstream when the fake "ffmpeg
" was finally removed from the Libav source, but, depending on your version, it can still show up in Ubuntu because the Libav source Ubuntu uses is from the ffmpeg-to-avconv transition period.
In June 2012, the message was re-worded for the package libav - 4:0.8.3-0ubuntu0.12.04.1
. Unfortunately the new "deprecated" message has caused additional user confusion.
Starting with Ubuntu 15.04 "Vivid Vervet", FFmpeg's ffmpeg
is back in the repositories again.
To further complicate matters, Libav chose a name that was historically used by FFmpeg to refer to its libraries (libavcodec, libavformat, etc). For example the libav-user mailing list, for questions and discussions about using the FFmpeg libraries, is unrelated to the Libav project.
If you are using avconv
then you are using Libav. If you are using ffmpeg
you could be using FFmpeg or Libav. Refer to the first line in the console output to tell the difference: the copyright notice will either mention FFmpeg or Libav.
Secondly, the version numbering schemes differ. Each of the FFmpeg or Libav libraries contains a version.h
header which shows a version number. FFmpeg will end in three digits, such as 57.67.100, and Libav will end in one digit such as 57.67.0. You can also view the library version numbers by running ffmpeg
or avconv
and viewing the console output.
ffmpeg
The real ffmpeg
is in the repository, so you can install it with:
apt-get install ffmpeg
Your options are:
ffmpeg
,ffmpeg
,These methods are non-intrusive, reversible, and will not interfere with the system or any repository packages.
Another possible option is to upgrade to Ubuntu 15.04 "Vivid Vervet" or newer and just use ffmpeg
from the repository.
For an interesting blog article on the situation, as well as a discussion about the main technical differences between the projects, see The FFmpeg/Libav situation.
Use count(d.ertek)
or count(d.id)
instead of count(d)
. This can be happen when you have composite primary key at your entity.
From the two linksResolved Successfully and Naming Convention, I easily solved this same problem which I faced. i.e., for the foreign key name, give as fk_colName_TableName. This naming convention is non-ambiguous and also makes every ForeignKey in your DB Model unique and you will never get this error.
Error 1022: Can't write; duplicate key in table
For Alpine (in docker), you can use apk add php7-simplexml
.
If that doesn't work for you, you can run apk add --no-cache php7-simplexml
. This is in case you aren't updating the package index first.
How about:
def ExtractAlphanumeric(InputString):
from string import ascii_letters, digits
return "".join([ch for ch in InputString if ch in (ascii_letters + digits)])
This works by using list comprehension to produce a list of the characters in InputString
if they are present in the combined ascii_letters
and digits
strings. It then joins the list together into a string.
Just in case, this might help someone like me.
I had this same issue in Unity 3D. I was attempting to use the emulators from Android Studio.
So I enabled Target Architecture->x86 Architecture
(although deprecated) in Player Settings and it worked!
'DD/MM/YYYY hh:mm A' => 12 hours 'DD/MM/YYYY HH:mm A' => 24 hours
Alternatively to Martin's answer, you could also add the INTO part at the end of the query to make the query more readable:
SELECT Id, dateCreated FROM products INTO iId, dCreate
extension String {
// MARK: - sub String
func substringToIndex(index:Int) -> String {
return self.substringToIndex(advance(self.startIndex, index))
}
func substringFromIndex(index:Int) -> String {
return self.substringFromIndex(advance(self.startIndex, index))
}
func substringWithRange(range:Range<Int>) -> String {
let start = advance(self.startIndex, range.startIndex)
let end = advance(self.startIndex, range.endIndex)
return self.substringWithRange(start..<end)
}
subscript(index:Int) -> Character{
return self[advance(self.startIndex, index)]
}
subscript(range:Range<Int>) -> String {
let start = advance(self.startIndex, range.startIndex)
let end = advance(self.startIndex, range.endIndex)
return self[start..<end]
}
// MARK: - replace
func replaceCharactersInRange(range:Range<Int>, withString: String!) -> String {
var result:NSMutableString = NSMutableString(string: self)
result.replaceCharactersInRange(NSRange(range), withString: withString)
return result
}
}
I used this to start a cmd file from C#:
Process proc = new Process();
proc.StartInfo.WorkingDirectory = "myWorkingDirectory";
proc.StartInfo.FileName = "myFileName.cmd";
proc.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
proc.Start();
proc.WaitForExit();
As much as I know there is no annotation like this. The best way is to use reflection as some of the others suggested. Look at this post:
How do I test a class that has private methods, fields or inner classes?
You should only watch out on testing the exception outcome of the method. For example: if u expect an IllegalArgumentException, but instead you'll get "null" (Class:java.lang.reflect.InvocationTargetException).
A colegue of mine proposed using the powermock framework for these situations, but I haven't tested it yet, so no idea what exactly it can do. Although I have used the Mockito framework that it is based upon and thats a good framework too (but I think doesn't solve the private method exception issue).
It's a great idea though having the @PublicForTests annotation.
Cheers!
It can be as simple as that:
const sumValues = obj => Object.values(obj).reduce((a, b) => a + b);
Quoting MDN:
The
Object.values()
method returns an array of a given object's own enumerable property values, in the same order as that provided by afor...in
loop (the difference being that a for-in loop enumerates properties in the prototype chain as well).
The
reduce()
method applies a function against an accumulator and each value of the array (from left-to-right) to reduce it to a single value.
from Array.prototype.reduce()
on MDN
You can use this function like that:
sumValues({a: 4, b: 6, c: -5, d: 0}); // gives 5
Note that this code uses some ECMAScript features which are not supported by some older browsers (like IE). You might need to use Babel to compile your code.
I found this question when I got the same error for a different reason.
My issue was that my Gulp hadn't picked up on the fact that I had declared a new module and I needed to manually re-run Gulp.
TL;DR. In Visual Studio 2019
, when you add an Icon
resource to a Win32
(desktop) application you get an auto-generated icon file that has the formats below. I assume that the #1 developer tool for Windows does this right. Thus, a Windows
compatible should have the following formats:
| Resolution | Color depth | Format |
|:-----------|------------:|:------:|
| 256x256 | 32-bit | PNG |
| 64x64 | 32-bit | BMP |
| 48x48 | 32-bit | BMP |
| 32x32 | 32-bit | BMP |
| 16x16 | 32-bit | BMP |
| 48x48 | 8-bit | BMP |
| 32x32 | 8-bit | BMP |
| 16x16 | 8-bit | BMP |
How to do it without using cURL with straight-up PHP: http://netevil.org/blog/2006/nov/http-post-from-php-without-curl
The API docs give some good hints:
print() ? nil
print(obj, ...) ? nil
Writes the given object(s) to ios. Returns
nil
.The stream must be opened for writing. Each given object that isn't a string will be converted by calling its
to_s
method. When called without arguments, prints the contents of$_
.If the output field separator (
$,
) is notnil
, it is inserted between objects. If the output record separator ($\
) is notnil
, it is appended to the output....
puts(obj, ...) ? nil
Writes the given object(s) to ios. Writes a newline after any that do not already end with a newline sequence. Returns
nil
.The stream must be opened for writing. If called with an array argument, writes each element on a new line. Each given object that isn't a string or array will be converted by calling its
to_s
method. If called without arguments, outputs a single newline.
Experimenting a little with the points given above, the differences seem to be:
Called with multiple arguments, print
separates them by the 'output field separator' $,
(which defaults to nothing) while puts
separates them by newlines. puts
also puts a newline after the final argument, while print
does not.
2.1.3 :001 > print 'hello', 'world'
helloworld => nil
2.1.3 :002 > puts 'hello', 'world'
hello
world
=> nil
2.1.3 :003 > $, = 'fanodd'
=> "fanodd"
2.1.3 :004 > print 'hello', 'world'
hellofanoddworld => nil
2.1.3 :005 > puts 'hello', 'world'
hello
world
=> nil
puts
automatically unpacks arrays, while print
does not:
2.1.3 :001 > print [1, [2, 3]], [4] [1, [2, 3]][4] => nil 2.1.3 :002 > puts [1, [2, 3]], [4] 1 2 3 4 => nil
print
with no arguments prints $_
(the last thing read by gets
), while puts
prints a newline:
2.1.3 :001 > gets
hello world
=> "hello world\n"
2.1.3 :002 > puts
=> nil
2.1.3 :003 > print
hello world
=> nil
print
writes the output record separator $\
after whatever it prints, while puts
ignores this variable:
mark@lunchbox:~$ irb
2.1.3 :001 > $\ = 'MOOOOOOO!'
=> "MOOOOOOO!"
2.1.3 :002 > puts "Oink! Baa! Cluck! "
Oink! Baa! Cluck!
=> nil
2.1.3 :003 > print "Oink! Baa! Cluck! "
Oink! Baa! Cluck! MOOOOOOO! => nil
/bin/sh
may or may not invoke the same program as /bin/bash
.
sh
supports at least the features required by POSIX (assuming a correct implementation). It may support extensions as well.
bash
, the "Bourne Again Shell", implements the features required for sh plus bash-specific extensions. The full set of extensions is too long to describe here, and it varies with new releases. The differences are documented in the bash manual. Type info bash
and read the "Bash Features" section (section 6 in the current version), or read the current documentation online.
maybe you want to take a look java.util.Stack
class.
it has push, pop methods. and implemented List interface.
for shift/unshift, you can reference @Jon's answer.
however, something of ArrayList you may want to care about , arrayList is not synchronized. but Stack is. (sub-class of Vector). If you have thread-safe requirement, Stack may be better than ArrayList.
I had PHP7.2 on a Ubuntu 16.04 server and it solved my problem:
sudo apt-get install zip unzip php-zip
Update
Tried this for Ubuntu 18.04 and worked as well.
There are two types of drop down lists available (I am not sure since which version).
ActiveX Drop Down
You can set the column widths, so your hidden column can be set to 0.
Form Drop Down
You could set the drop down range to a hidden sheet and reference the cell adjacent to the selected item. This would also work with the ActiveX type control.
or if you develop on localhost (only for apache 2.4+):
<If "%{REMOTE_ADDR} != '127.0.0.1'">
</If>
Here is the simple java code for solving this problem:
and the math behind it : https://math.stackexchange.com/questions/198764/how-to-know-if-a-point-is-inside-a-circle
boolean insideCircle(int[] point, int[] center, int radius) {
return (float)Math.sqrt((int)Math.pow(point[0]-center[0],2)+(int)Math.pow(point[1]-center[1],2)) <= radius;
}
In C, there's no (real, distinct type of) strings. Every C "string" is an array of chars, zero terminated.
Therefore, to extract a character c at index i from string your_string, just use
char c = your_string[i];
Index is base 0 (first character is your_string[0], second is your_string[1]...).
Here is the perfect method:
Please note that Environment.NewLine works on on Microsoft platforms.
In addition to the above, you need to add \r and \n in a separate function!
Here is the code which will support whether you type on Linux, Windows, or Mac:
var stringTest = "\r Test\nThe Quick\r\n brown fox";
Console.WriteLine("Original is:");
Console.WriteLine(stringTest);
Console.WriteLine("-------------");
stringTest = stringTest.Trim().Replace("\r", string.Empty);
stringTest = stringTest.Trim().Replace("\n", string.Empty);
stringTest = stringTest.Replace(Environment.NewLine, string.Empty);
Console.WriteLine("Output is : ");
Console.WriteLine(stringTest);
Console.ReadLine();
Tim S. was much closer to a "correct" answer then the currently accepted one. If you want to have a 100% width, variable height background image done with CSS, instead of using cover
(which will allow the image to extend out from the sides) or contain
(which does not allow the image to extend out at all), just set the CSS like so:
body {
background-image: url(img.jpg);
background-position: center top;
background-size: 100% auto;
}
This will set your background image to 100% width and allow the height to overflow. Now you can use media queries to swap out that image instead of relying on JavaScript.
EDIT: I just realized (3 months later) that you probably don't want the image to overflow; you seem to want the container element to resize based on it's background-image (to preserve it's aspect ratio), which is not possible with CSS as far as I know.
Hopefully soon you'll be able to use the new srcset attribute on the img
element. If you want to use img
elements now, the currently accepted answer is probably best.
However, you can create a responsive background-image element with a constant aspect ratio using purely CSS. To do this, you set the height
to 0 and set the padding-bottom
to a percentage of the element's own width, like so:
.foo {
height: 0;
padding: 0; /* remove any pre-existing padding, just in case */
padding-bottom: 75%; /* for a 4:3 aspect ratio */
background-image: url(foo.png);
background-position: center center;
background-size: 100%;
background-repeat: no-repeat;
}
In order to use different aspect ratios, divide the height of the original image by it's own width, and multiply by 100 to get the percentage value. This works because padding percentage is always calculated based on width, even if it's vertical padding.
The following SASS styling should make your scrollbar transparent on most browsers (Firefox is not supported):
.hide-scrollbar {
scrollbar-width: thin;
scrollbar-color: transparent transparent;
&::-webkit-scrollbar {
width: 1px;
}
&::-webkit-scrollbar-track {
background: transparent;
}
&::-webkit-scrollbar-thumb {
background-color: transparent;
}
}
This example demonstrates the difference between the mousemove, mouseenter and mouseover events:
https://jsfiddle.net/z8g613yd/
HTML:
<div onmousemove="myMoveFunction()">
<p>onmousemove: <br> <span id="demo">Mouse over me!</span></p>
</div>
<div onmouseenter="myEnterFunction()">
<p>onmouseenter: <br> <span id="demo2">Mouse over me!</span></p>
</div>
<div onmouseover="myOverFunction()">
<p>onmouseover: <br> <span id="demo3">Mouse over me!</span></p>
</div>
CSS:
div {
width: 200px;
height: 100px;
border: 1px solid black;
margin: 10px;
float: left;
padding: 30px;
text-align: center;
background-color: lightgray;
}
p {
background-color: white;
height: 50px;
}
p span {
background-color: #86fcd4;
padding: 0 20px;
}
JS:
var x = 0;
var y = 0;
var z = 0;
function myMoveFunction() {
document.getElementById("demo").innerHTML = z += 1;
}
function myEnterFunction() {
document.getElementById("demo2").innerHTML = x += 1;
}
function myOverFunction() {
document.getElementById("demo3").innerHTML = y += 1;
}
onmousemove
: occurs every time the mouse pointer is moved over the div element.onmouseenter
: only occurs when the mouse pointer enters the div element.onmouseover
: occurs when the mouse pointer enters the div element,
and its child elements (p and span).Well, if you know where your user lives in the AD hierarchy (e.g. quite possibly in the "Users" container, if it's a small network), you could also bind to the user account directly, instead of searching for it.
DirectoryEntry deUser = new DirectoryEntry("LDAP://cn=John Doe,cn=Users,dc=yourdomain,dc=com");
if (deUser != null)
{
... do something with your user
}
And if you're on .NET 3.5 already, you could even use the vastly expanded System.DirectorySrevices.AccountManagement namespace with strongly typed classes for each of the most common AD objects:
// bind to your domain
PrincipalContext pc = new PrincipalContext(ContextType.Domain, "LDAP://dc=yourdomain,dc=com");
// find the user by identity (or many other ways)
UserPrincipal user = UserPrincipal.FindByIdentity(pc, "cn=John Doe");
There's loads of information out there on System.DirectoryServices.AccountManagement - check out this excellent article on MSDN by Joe Kaplan and Ethan Wilansky on the topic.
here is code:
<?php echo '<pre>' . print_r($_SESSION, TRUE) . '</pre>'; ?>
/* Current time */
select now();
/* Epoch from current time;
Epoch is number of seconds since 1970-01-01 00:00:00+00 */
select extract(epoch from now());
/* Get back time from epoch */
-- Option 1 - use to_timestamp function
select to_timestamp( extract(epoch from now()));
-- Option 2 - add seconds to 'epoch'
select timestamp with time zone 'epoch'
+ extract(epoch from now()) * interval '1 second';
/* Cast timestamp to date */
-- Based on Option 1
select to_timestamp(extract(epoch from now()))::date;
-- Based on Option 2
select (timestamp with time zone 'epoch'
+ extract(epoch from now()) * interval '1 second')::date;
/* For column epoch_ms */
select to_timestamp(extract(epoch epoch_ms))::date;
For *nix systems, the obvious fix is chmod 600 id_rsa
ofc, but on windows 7 I had to hit my head against the wall for a while, but then I found the magic solution:
go to My Computer / Right Click / Properties / Advanced System Settings / Environment Variables and DELETE the variable (possibly from both system and user environment):
CYGWIN
Basically, its a flaw in mingw32 used by git windows binary, seeing all files 644 and all folders 755 always. Removing the environment variable does not change that behaviour, but it appearantly tells ssh.exe to ignore the problem. If you do set proper permissions to your id_rsa through explorers security settings (there really is no need to have any other user in there than your own, not "everyone", not "administrators", not "system". none. just you), you'll still be secure.
Now, why mingw32, a different system than cygwin, would make any use of the CYGWIN environment variable, is beyond me. Looks like a bug to me.
This works since java 8u40:
Alert alert = new Alert(AlertType.INFORMATION, "Content here", ButtonType.OK);
alert.getDialogPane().setMinHeight(Region.USE_PREF_SIZE);
alert.show();
Try like below with Gson
Library.
Earlier Conversion List format were:
[Product [Id=1, City=Bengalore, Category=TV, Brand=Samsung, Name=Samsung LED, Type=LED, Size=32 inches, Price=33500.5, Stock=17.0], Product [Id=2, City=Bengalore, Category=TV, Brand=Samsung, Name=Samsung LED, Type=LED, Size=42 inches, Price=41850.0, Stock=9.0]]
and here the conversion source begins.
//** Note I have created the method toString() in Product class.
//Creating and initializing a java.util.List of Product objects
List<Product> productList = (List<Product>)productRepository.findAll();
//Creating a blank List of Gson library JsonObject
List<JsonObject> entities = new ArrayList<JsonObject>();
//Simply printing productList size
System.out.println("Size of productList is : " + productList.size());
//Creating a Iterator for productList
Iterator<Product> iterator = productList.iterator();
//Run while loop till Product Object exists.
while(iterator.hasNext()){
//Creating a fresh Gson Object
Gson gs = new Gson();
//Converting our Product Object to JsonElement
//Object by passing the Product Object String value (iterator.next())
JsonElement element = gs.fromJson (gs.toJson(iterator.next()), JsonElement.class);
//Creating JsonObject from JsonElement
JsonObject jsonObject = element.getAsJsonObject();
//Collecting the JsonObject to List
entities.add(jsonObject);
}
//Do what you want to do with Array of JsonObject
System.out.println(entities);
Converted Json Result is :
[{"Id":1,"City":"Bengalore","Category":"TV","Brand":"Samsung","Name":"Samsung LED","Type":"LED","Size":"32 inches","Price":33500.5,"Stock":17.0}, {"Id":2,"City":"Bengalore","Category":"TV","Brand":"Samsung","Name":"Samsung LED","Type":"LED","Size":"42 inches","Price":41850.0,"Stock":9.0}]
Hope this would help many guys!
After speaking with you in the comments, I believe that you can just do this using numpy/scipy. The ideas is to read the image in the numpy
3d-array and feed it into the variable.
from scipy import misc
import tensorflow as tf
img = misc.imread('01.png')
print img.shape # (32, 32, 3)
img_tf = tf.Variable(img)
print img_tf.get_shape().as_list() # [32, 32, 3]
Then you can run your graph:
init = tf.initialize_all_variables()
sess = tf.Session()
sess.run(init)
im = sess.run(img_tf)
and verify that it is the same:
import matplotlib.pyplot as plt
fig = plt.figure()
fig.add_subplot(1,2,1)
plt.imshow(im)
fig.add_subplot(1,2,2)
plt.imshow(img)
plt.show()
P.S. you mentioned: Since it's supposed to parallelize reading, it seems useful to know.
. To which I can say that rarely in data-analysis reading of the data is the bottleneck. Most of your time you will spend training your model.
You are deleting the row from the gridview but you are then going and calling databind again which is just refreshing the gridview to the same state that the original datasource is in.
Either remove it from the datasource and then databind, or databind and remove it from the gridview without redatabinding.
:echo has('clipboard')
should return 1
0
(for example Mac OS X, at least v10.11 (El Capitan), v10.9 (Mavericks) and v10.8 (Mountain Lion) - comes with a Vim version lacking clipboard support), you have to install a Vim version with clipboard support, say via brew install vim
(don't forget to relaunch your terminal(s) after the installation)P.S:
set mouse+=a
to your .vimrc
- it will allow you to select lines in Vim using the mouse, while not selecting extraneous elements (like line numbers, etc.) NOTICE: it will block the ability to copy mouse-selected text to the system clipboard from Vim.Follow the instruction in here.
JAVA_HOME
should be like this
JAVA_HOME=C:\Program Files\Java\jdk1.7.0_07
Create a setenv.(sh|bat) file in the tomcat/bin directory with the environment variables that you want modified.
The catalina script checks if the setenv script exists and runs it to set the environment variables. This way you can change the parameters to only one instance of tomcat and is easier to copy it to another instance.
Probably your configuration app has created the setenv script and thats why tomcat is ignoring the environment variables.
^([A-Z][a-z]+)+$
This looks for sequences of an uppercase letter followed by one or more lowercase letters. Consecutive uppercase letters will not match, as only one is allowed at a time, and it must be followed by a lowercase one.
This should give you a list of all the tables in your database
SELECT Distinct TABLE_NAME FROM information_schema.TABLES
So you can use it similar to your database check.
If NOT EXISTS(SELECT Distinct TABLE_NAME FROM information_schema.TABLES Where TABLE_NAME = 'Your_Table')
BEGIN
--CREATE TABLE Your_Table
END
GO
According to the grammar in the CSP spec, you need to specify schemes as scheme:
, not just scheme
. So, you need to change the image source directive to:
img-src 'self' data:;
Perfect answer for your question can be found on MYSQL site itself.refer their manual(without using PHP)
http://forums.mysql.com/read.php?20,17671,27914
According to them use LONGBLOB datatype. with that you can only store images less than 1MB only by default,although it can be changed by editing server config file.i would also recommend using MySQL workBench for ease of database management
Check if the manifest is a valid xml file. I had the same problem by doing a DOS copy command at the end of the build, and it turns out that for some reason I can not understand "copy" was adding a strange character (->) at the end of the manifest files. The problem was solved by adding "/b" switch to force binary copy.
I recently ran into this as well and this was a helpful post. I took the above Topera a step further and this works for me in both chrome and firefox:
var temp = new Date( Date("2010-08-17 12:09:36") );
alert(temp);
the internal call to Date()
returns a string that new Date()
can parse.
.aspx is a rendered page. If you need a view, use an .aspx page. If all you need is backend functionality but will be staying on the same view, use an .ashx page.
var arr = [];
while(mynumber--) {
arr[mynumber] = String(mynumber+1);
}
UPDATED
For python 3, you should use items()
instead of iteritems()
PYTHON 2
for attr, value in k.__dict__.iteritems():
print attr, value
PYTHON 3
for attr, value in k.__dict__.items():
print(attr, value)
This will print
'names', [a list with names]
'tweet', [a list with tweet]
If you knew that the length of conditions you would care about would all be the same length then you could:
switch(mystring.substring(0, Math.Min(3, mystring.Length))
{
case "abc":
//do something
break;
case "xyz":
//do something else
break;
default:
//do a different thing
break;
}
The Math.Min(3, mystring.Length)
is there so that a string of less than 3 characters won't throw an exception on the sub-string operation.
There are extensions of this technique to match e.g. a bunch of 2-char strings and a bunch of 3-char strings, where some 2-char comparisons matching are then followed by 3-char comparisons. Unless you've a very large number of such strings though, it quickly becomes less efficient than simple if-else chaining for both the running code and the person who has to maintain it.
Edit: Added since you've now stated they will be of different lengths. You could do the pattern I mentioned of checking the first X chars and then the next Y chars and so on, but unless there's a pattern where most of the strings are the same length this will be both inefficient and horrible to maintain (a classic case of premature pessimisation).
The command pattern is mentioned in another answer, so I won't give details of that, as is that where you map string patterns to IDs, but they are option.
I would not change from if-else chains to command or mapping patterns to gain the efficiency switch sometimes has over if-else, as you lose more in the comparisons for the command or obtaining the ID pattern. I would though do so if it made code clearer.
A chain of if-else's can work pretty well, either with string comparisons or with regular expressions (the latter if you have comparisons more complicated than the prefix-matches so far, which would probably be simpler and faster, I'm mentioning reg-ex's just because they do sometimes work well with more general cases of this sort of pattern).
If you go for if-elses, try to consider which cases are going to happen most often, and make those tests happen before those for less-common cases (though of course if "starts with abcd" is a case to look for it would have to be checked before "starts with abc").
Anton,
As a best practice one should n't create user objects in the primary filegroup. When you have bandwidth, create a new file group and move the user objects and leave the system objects in primary.
The following queries will help you identify the space used in each file and the top tables that have highest number of rows and if there are any heaps. Its a good starting point to investigate this issue.
SELECT
ds.name as filegroupname
, df.name AS 'FileName'
, physical_name AS 'PhysicalName'
, size/128 AS 'TotalSizeinMB'
, size/128.0 - CAST(FILEPROPERTY(df.name, 'SpaceUsed') AS int)/128.0 AS 'AvailableSpaceInMB'
, CAST(FILEPROPERTY(df.name, 'SpaceUsed') AS int)/128.0 AS 'ActualSpaceUsedInMB'
, (CAST(FILEPROPERTY(df.name, 'SpaceUsed') AS int)/128.0)/(size/128)*100. as '%SpaceUsed'
FROM sys.database_files df LEFT OUTER JOIN sys.data_spaces ds
ON df.data_space_id = ds.data_space_id;
EXEC xp_fixeddrives
select t.name as TableName,
i.name as IndexName,
p.rows as Rows
from sys.filegroups fg (nolock) join sys.database_files df (nolock)
on fg.data_space_id = df.data_space_id join sys.indexes i (nolock)
on df.data_space_id = i.data_space_id join sys.tables t (nolock)
on i.object_id = t.object_id join sys.partitions p (nolock)
on t.object_id = p.object_id and i.index_id = p.index_id
where fg.name = 'PRIMARY' and t.type = 'U'
order by rows desc
select t.name as TableName,
i.name as IndexName,
p.rows as Rows
from sys.filegroups fg (nolock) join sys.database_files df (nolock)
on fg.data_space_id = df.data_space_id join sys.indexes i (nolock)
on df.data_space_id = i.data_space_id join sys.tables t (nolock)
on i.object_id = t.object_id join sys.partitions p (nolock)
on t.object_id = p.object_id and i.index_id = p.index_id
where fg.name = 'PRIMARY' and t.type = 'U' and i.index_id = 0
order by rows desc
Late to the party as since 2015, Log4J 1.x has reached EOL.
Log4J 2.x onwards the JVM option should be -Dlog4j.configurationFile=<filename>
P.S. <filename>
could be a file relative to the class path without the file:
as suggested in the other answers.
const
public const string MyStr;
is a compile time constant (you can use it as the default parameter for a method parameter for example), and it will not be obfuscated if you use such technology
static readonly
public static readonly string MyStr;
is runtime constant. It means that it is evaluated when the application is launched and not before. This is why it can't be used as the default parameter for a method (compilation error) for example. The value stored in it can be obfuscated.
My issue was similar - I had a new table i was creating that ahd to tie in to the identity users. After reading the above answers, realized it had to do with IsdentityUser and the inherited properites. I already had Identity set up as its own Context, so to avoid inherently tying the two together, rather than using the related user table as a true EF property, I set up a non-mapped property with the query to get the related entities. (DataManager is set up to retrieve the current context in which OtherEntity exists.)
[Table("UserOtherEntity")]
public partial class UserOtherEntity
{
public Guid UserOtherEntityId { get; set; }
[Required]
[StringLength(128)]
public string UserId { get; set; }
[Required]
public Guid OtherEntityId { get; set; }
public virtual OtherEntity OtherEntity { get; set; }
}
public partial class UserOtherEntity : DataManager
{
public static IEnumerable<OtherEntity> GetOtherEntitiesByUserId(string userId)
{
return Connect2Context.UserOtherEntities.Where(ue => ue.UserId == userId).Select(ue => ue.OtherEntity);
}
}
public partial class ApplicationUser : IdentityUser
{
public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
{
// Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
// Add custom user claims here
return userIdentity;
}
[NotMapped]
public IEnumerable<OtherEntity> OtherEntities
{
get
{
return UserOtherEntities.GetOtherEntitiesByUserId(this.Id);
}
}
}
No, that's it. You might want to make sure you have all optional library headers installed too so you don't have to recompile it later. They are listed in the documentation I think.
Also, you can install it even in the standard path if you do make altinstall
. That way it won't override your current default "python".
git rev-parse --show-toplevel
could be enough if executed within a git repo.
From git rev-parse
man page:
--show-toplevel
Show the absolute path of the top-level directory.
For older versions (before 1.7.x), the other options are listed in "Is there a way to get the git root directory in one command?":
git rev-parse --git-dir
That would give the path of the .git
directory.
The OP mentions:
git rev-parse --show-prefix
which returns the local path under the git repo root. (empty if you are at the git repo root)
Note: for simply checking if one is in a git repo, I find the following command quite expressive:
git rev-parse --is-inside-work-tree
And yes, if you need to check if you are in a .git
git-dir folder:
git rev-parse --is-inside-git-dir
I see only one reason your code to not work, missed quote after file name string:
VBScript:
FSO.GetFile("MyFile.txt[missed_quote_here]).Name = "Hello.txt"
Another way:
x=$'Some\nstring'
readarray -t y <<<"$x"
Or, if you don't have bash 4, the bash 3.2 equivalent:
IFS=$'\n' read -rd '' -a y <<<"$x"
You can also do it the way you were initially trying to use:
y=(${x//$'\n'/ })
This, however, will not function correctly if your string already contains spaces, such as 'line 1\nline 2'
. To make it work, you need to restrict the word separator before parsing it:
IFS=$'\n' y=(${x//$'\n'/ })
...and then, since you are changing the separator, you don't need to convert the \n
to space
anymore, so you can simplify it to:
IFS=$'\n' y=($x)
This approach will function unless $x
contains a matching globbing pattern (such as "*
") - in which case it will be replaced by the matched file name(s). The read
/readarray
methods require newer bash versions, but work in all cases.
There are predefined macros that are used by most compilers, you can find the list here. GCC compiler predefined macros can be found here. Here is an example for gcc:
#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
//define something for Windows (32-bit and 64-bit, this part is common)
#ifdef _WIN64
//define something for Windows (64-bit only)
#else
//define something for Windows (32-bit only)
#endif
#elif __APPLE__
#include <TargetConditionals.h>
#if TARGET_IPHONE_SIMULATOR
// iOS Simulator
#elif TARGET_OS_IPHONE
// iOS device
#elif TARGET_OS_MAC
// Other kinds of Mac OS
#else
# error "Unknown Apple platform"
#endif
#elif __linux__
// linux
#elif __unix__ // all unices not caught above
// Unix
#elif defined(_POSIX_VERSION)
// POSIX
#else
# error "Unknown compiler"
#endif
The defined macros depend on the compiler that you are going to use.
The _WIN64
#ifdef
can be nested into the _WIN32
#ifdef
because _WIN32
is even defined when targeting the Windows x64 version. This prevents code duplication if some header includes are common to both
(also WIN32
without underscore allows IDE to highlight the right partition of code).
Case: If you need to ignore the merge commit created by default, follow these steps.
Say, a new feature branch is checked out from master having 2 commits already,
Checkout a new feature_branch
Feature branch then adds two commits-->
Now if you want to merge feature_branch changes to master, Do git merge feature_branch
sitting on the master.
This will add all commits into master branch (4 in master + 2 in feature_branch = total 6) + an extra merge commit something like 'Merge branch 'feature_branch'
' as the master is diverged.
If you really need to ignore these commits (those made in FB) and add the whole changes made in feature_branch as a single commit like 'Integrated feature branch changes into master'
, Run git merge feature_merge --no-commit
.
With --no-commit, it perform the merge and stop just before creating a merge commit, We will have all the added changes in feature branch now in master and get a chance to create a new commit as our own.
Read here for more : https://git-scm.com/docs/git-merge
Modern answer: Use LocalDate
from java.time
, the modern Java date and time API, and its toString
method:
LocalDate date = LocalDate.of(2012, Month.DECEMBER, 1); // get from somewhere
String formattedDate = date.toString();
System.out.println(formattedDate);
This prints
2012-12-01
A date (whether we’re talking java.util.Date
or java.time.LocalDate
) doesn’t have a format in it. All it’s got is a toString
method that produces some format, and you cannot change the toString
method. Fortunately, LocalDate.toString
produces exactly the format you asked for.
The Date
class is long outdated, and the SimpleDateFormat
class that you tried to use, is notoriously troublesome. I recommend you forget about those classes and use java.time
instead. The modern API is so much nicer to work with.
Except: it happens that you get a Date
from a legacy API that you cannot change or don’t want to change just now. The best thing you can do with it is convert it to java.time.Instant
and do any further operations from there:
Date oldfashoinedDate = // get from somewhere
LocalDate date = oldfashoinedDate.toInstant()
.atZone(ZoneId.of("Asia/Beirut"))
.toLocalDate();
Please substitute your desired time zone if it didn’t happen to be Asia/Beirut. Then proceed as above.
Link: Oracle tutorial: Date Time, explaining how to use java.time
.
As slight improvement to @MONTYHS answer, iterating through a tup of fieldnames:
import csv
import json
csvfilename = 'filename.csv'
jsonfilename = csvfilename.split('.')[0] + '.json'
csvfile = open(csvfilename, 'r')
jsonfile = open(jsonfilename, 'w')
reader = csv.DictReader(csvfile)
fieldnames = ('FirstName', 'LastName', 'IDNumber', 'Message')
output = []
for each in reader:
row = {}
for field in fieldnames:
row[field] = each[field]
output.append(row)
json.dump(output, jsonfile, indent=2, sort_keys=True)
Is it a good practice to use try-except-else in python?
The answer to this is that it is context dependent. If you do this:
d = dict()
try:
item = d['item']
except KeyError:
item = 'default'
It demonstrates that you don't know Python very well. This functionality is encapsulated in the dict.get
method:
item = d.get('item', 'default')
The try
/except
block is a much more visually cluttered and verbose way of writing what can be efficiently executing in a single line with an atomic method. There are other cases where this is true.
However, that does not mean that we should avoid all exception handling. In some cases it is preferred to avoid race conditions. Don't check if a file exists, just attempt to open it, and catch the appropriate IOError. For the sake of simplicity and readability, try to encapsulate this or factor it out as apropos.
Read the Zen of Python, understanding that there are principles that are in tension, and be wary of dogma that relies too heavily on any one of the statements in it.
After a long research and different experiments the easiest way "FOR MAC USERS" is to create a script:
open -a "Visual Studio" \
"path to first sln" \
"path to second sln" \
...
:D
If you are debugging or similar - In chrome developer tools, you can simply use
$x('/html/.//div[@id="text"]')
I just want to mention a thing, there are many tools can do text processing, e.g. sort, cut, split, join, paste, comm, uniq, column, rev, tac, tr, nl, pr, head, tail.....
they are very handy but you have to learn their options etc.
A lazy way (not the best way) to learn text processing might be: only learn grep , sed and awk. with this three tools, you can solve almost 99% of text processing problems and don't need to memorize above different cmds and options. :)
AND, if you 've learned and used the three, you knew the difference. Actually, the difference here means which tool is good at solving what kind of problem.
a more lazy way might be learning a script language (python, perl or ruby) and do every text processing with it.
Another approach is to append the submit input button to the form only when it is supposed to be submited and replace it by a simple div during the form filling
another way
$('input:radio[name=theme]').filter(":checked").val()
Apache commons-lang3 has BooleanUtils with a method toBooleanObject:
BooleanUtils.toBooleanObject(String str)
// where:
BooleanUtils.toBooleanObject(null) = null
BooleanUtils.toBooleanObject("true") = Boolean.TRUE
BooleanUtils.toBooleanObject("false") = Boolean.FALSE
BooleanUtils.toBooleanObject("on") = Boolean.TRUE
BooleanUtils.toBooleanObject("ON") = Boolean.TRUE
BooleanUtils.toBooleanObject("off") = Boolean.FALSE
BooleanUtils.toBooleanObject("oFf") = Boolean.FALSE
BooleanUtils.toBooleanObject("blue") = null
To escape backslashes that cause problems for JSON data I use this function.
//escape backslash to avoid errors
var escapeJSON = function(str) {
return str.replace(/\\/g,'\\');
};
Use the CSS pointer-events:none on fields you want to "disable" (possibly together with a greyed background) which allows the POST action, like:
<input type="text" class="disable">
.disable{
pointer-events:none;
background:grey;
}
Ref: https://developer.mozilla.org/en-US/docs/Web/CSS/pointer-events
.controller('pieChartController', ['$scope', '$http', '$httpParamSerializerJQLike', function($scope, $http, $httpParamSerializerJQLike) {
var data = {
TimeStamp : "2016-04-25 12:50:00"
};
$http({
method: 'POST',
url: 'serverutilizationreport',
headers: {'Content-Type': 'application/x-www-form-urlencoded'},
data: $httpParamSerializerJQLike(data),
}).success(function () {});
}
]);
We can download a specified branch by using following magical command:
git clone -b < branch name > <remote_repo url>
In addition to Shane Kms answer, if you've activated Nuget Package Restore, you edit the NuGet.config located in the .nuget-folder as follows:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<repositoryPath>..\..\ExtLibs\Packages</repositoryPath>
</configuration>
Notice the extra "..\", as it backtracks from the .nuget-folder and not the solution folder.
In android-N, this feature is included in it. check Number-blocking update for android N
Android N now supports number-blocking in the platform and provides a framework API to let service providers maintain a blocked-number list. The default SMS app, the default phone app, and provider apps can read from and write to the blocked-number list. The list is not accessible to other app.
advantage of are:
For more information, see android.provider.BlockedNumberContract
Update an existing project.
To compile your app against the Android N platform, you need to use the Java 8 Developer Kit (JDK 8), and in order to use some tools with Android Studio 2.1, you need to install the Java 8 Runtime Environment (JRE 8).
Open the build.gradle file for your module and update the values as follows:
android {
compileSdkVersion 'android-N'
buildToolsVersion 24.0.0 rc1
...
defaultConfig {
minSdkVersion 'N'
targetSdkVersion 'N'
...
}
...
}
public class Scan extends AppCompatActivity {
int minute;
long min;
TextView tv_timer;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scan2);
tv_timer=findViewById(R.id.tv_timer);
minute=Integer.parseInt("Your time in string form like 10");
min= minute*60*1000;
counter(min);
}
private void counter(long min) {
CountDownTimer timer = new CountDownTimer(min, 1000) {
public void onTick(long millisUntilFinished) {
int seconds = (int) (millisUntilFinished / 1000) % 60;
int minutes = (int) ((millisUntilFinished / (1000 * 60)) % 60);
int hours = (int) ((millisUntilFinished / (1000 * 60 * 60)) % 24);
tv_timer.setText(String.format("%d:%d:%d", hours, minutes, seconds));
}
public void onFinish() {
Toast.makeText(getApplicationContext(), "Your time has been completed",
Toast.LENGTH_LONG).show();
}
};
timer.start();
}
}
if you want to get the value attribute (buttonValue) then I'd use:
<script type="text/javascript">
$(document).ready(function() {
$('.my_button').click(function() {
alert($(this).attr('value'));
});
});
</script>
After doing a lot of things, I upgraded pip
, setuptools
and virtualenv
.
python -m pip install -U pip
pip install -U setuptools
pip install -U virtualenv
I did steps 1, 2 in my virtual environment as well as globally.
Next, I installed the package through pip
and it worked.
Have you tried using $("#<%= txtDateElementId.ClientID %>").datepicker(); instead of $("#txtDateElementId").datepicker(); when selecting an element by ID using JQuery.
I had this issue and it took me for a while to figure out how to fix that.
My case is slightly different. My MySQL server is of version 5.1.x. And somehow I upgraded my MySQL-python from 1.2.3 to 1.2.5. And I kept getting this issue since then event I added the following soft link.
libmysqlclient.18.dylib -> /usr/local/mysql/lib/libmysqlclient.18.dylib
It turns out that for MySQL 5.1.x there is no libmysqlclient.18.dylib, but only libmysqlclient.16.dylib. You can fix this issue either by downgrade your MySQL-python to 1.2.3 or upgrade your MySQL server to 5.6.x (I haven't tried 5.5.x.)
I downgraded the library to 1.2.3 since upgrading MySQL is not an option for me.
You need a dict
:
my_dict = {'cheese': 'cake'}
Example code (from the docs):
>>> a = dict(one=1, two=2, three=3)
>>> b = {'one': 1, 'two': 2, 'three': 3}
>>> c = dict(zip(['one', 'two', 'three'], [1, 2, 3]))
>>> d = dict([('two', 2), ('one', 1), ('three', 3)])
>>> e = dict({'three': 3, 'one': 1, 'two': 2})
>>> a == b == c == d == e
True
You can read more about dictionaries here.
Visual studio command prompt is nothing but the regular command prompt where few environment variables are set by default. This variables are set in the batch script : C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\Tools\VsDevCmd.bat . So basically to get a visual studio command prompt for a particular version, just open regular command prompt and run this batch script : C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\Tools\VsDevCmd.bat (Change the visual studio version based on your installed version). Voila you have got the visual studio command prompt. You can write a script to run the batch file and open cmd.exe.
The way you are using await/async is poor at best, and it makes it hard to follow. You are mixing await
with Task'1.Result
, which is just confusing. However, it looks like you are looking at a final task result, rather than the contents.
I've rewritten your function and function call, which should fix your issue:
async Task<string> GetResponseString(string text)
{
var httpClient = new HttpClient();
var parameters = new Dictionary<string, string>();
parameters["text"] = text;
var response = await httpClient.PostAsync(BaseUri, new FormUrlEncodedContent(parameters));
var contents = await response.Content.ReadAsStringAsync();
return contents;
}
And your final function call:
Task<string> result = GetResponseString(text);
var finalResult = result.Result;
Or even better:
var finalResult = await GetResponseString(text);
Both .container
and .container-fluid
are responsive (i.e. they change the layout based on the screen width), but in different ways (I know, the naming doesn't make it sound that way).
Short Answer:
.container
is jumpy / choppy resizing, and
.container-fluid
is continuous / fine resizing at width: 100%.
From a functionality perspective:
.container-fluid
continuously resizes as you change the width of your window/browser by any amount, leaving no extra empty space on the sides ever, unlike how .container
does. (Hence the naming: "fluid" as opposed to "digital", "discrete", "chunked", or "quantized").
.container
resizes in chunks at several certain widths. In other words, it will be different specific aka "fixed" widths different ranges of screen widths.
Semantics: "fixed width"
You can see how naming confusion can arise. Technically, we can say .container
is "fixed width", but it is fixed only in the sense that it doesn't resize at every granular width. It's actually not "fixed" in the sense that it's always stays at a specific pixel width, since it actually can change size.
From a fundamental perspective:
.container-fluid
has the CSS property width: 100%;
, so it continually readjusts at every screen width granularity.
.container-fluid {
width: 100%;
}
.container
has something like "width = 800px" (or em, rem etc.), a specific pixel width value at different screen widths. This of course is what causes the element width to abruptly jump to a different width when the screen width crosses a screen width threshold. And that threshold is governed by CSS3 media queries, which allow you to apply different styles for different conditions, such as screen width ranges.
@media screen and (max-width: 400px){
.container {
width: 123px;
}
}
@media screen and (min-width: 401px) and (max-width: 800px){
.container {
width: 456px;
}
}
@media screen and (min-width: 801px){
.container {
width: 789px;
}
}
Beyond
You can make any fixed widths element responsive via media queries, not just .container
elements, since media queries is exactly how .container
is implemented by bootstrap in the background (see JKillian's answer for the code).
Just change +
to -
:
str = str.replace(/[^a-z0-9-]/g, "");
You can read it as:
[^ ]
: match NOT from the set[^a-z0-9-]
: match if not a-z
, 0-9
or -
/ /g
: do global matchMore information:
SELECT *
FROM
(
SELECT [Period], [Account], [Value]
FROM TableName
) AS source
PIVOT
(
MAX([Value])
FOR [Period] IN ([2000], [2001], [2002])
) as pvt
Another way,
SELECT ACCOUNT,
MAX(CASE WHEN Period = '2000' THEN Value ELSE NULL END) [2000],
MAX(CASE WHEN Period = '2001' THEN Value ELSE NULL END) [2001],
MAX(CASE WHEN Period = '2002' THEN Value ELSE NULL END) [2002]
FROM tableName
GROUP BY Account
Using LocalStorage to keep track of the last time of activity, we can write the reload function as follows
function reloadPage(expiryDurationMins) {
const lastInteraction = window.localStorage.getItem('lastinteraction')
if (!lastInteraction) return // no interaction recorded since page load
const inactiveDurationMins = (Date.now() - Number(lastInteraction)) / 60000
const pageExpired = inactiveDurationMins >= expiryDurationMins
if (pageExpired) window.location.reload()
}
Then we create an arrow function which saves the last time of interaction in milliseconds(String)
const saveLastInteraction = () => window.localStorage.setItem('last', Date.now().toString())
We will need to listen to the beforeunload
event in the browser to clear our lastinteraction
record so we don't get stuck in an infinite reload loop.
window.addEventListener('beforeunload', () => window.localStorage.removeItem('lastinteraction'))
The user activity events we will need to monitor would be mousemove
and keypress
. We store the last interaction time when the user moves the mouse or presses a key on the keyboard
window.addEventListener('mousemove', saveLastInteraction)
window.addEventListener('keypress', saveLastInteraction)
To set up our final listener, we will use the load
event.
On page load, we use the setInterval
function to check if the page has expired after a certain period.
const expiryDurationMins = 1
window.addEventListener('load', setInterval.bind(null, reloadPage.bind(null, expiryDurationMins), 1000))
What you need is called attribute selector. An example, using your html structure, is the following:
div[class^="tocolor-"], div[class*=" tocolor-"] {
color:red
}
In the place of div
you can add any element or remove it altogether, and in the place of class
you can add any attribute of the specified element.
[class^="tocolor-"]
— starts with "tocolor-".
[class*=" tocolor-"]
— contains the substring "tocolor-" occurring directly after a space character.
Demo: http://jsfiddle.net/K3693/1/
More information on CSS attribute selectors, you can find here and here. And from MDN Docs MDN Docs
In my opinion, the laziest solution (especially if you don't rely on latest bleeding edge C/C++ features, or latest compiler features) wasn't mentioned yet, so here it is:
Just build on the system with the oldest GLIBC you still want to support.
This is actually pretty easy to do nowadays with technologies like chroot, or KVM/Virtualbox, or docker, even if you don't really want to use such an old distro directly on any pc. In detail, to make a maximum portable binary of your software I recommend following these steps:
Just pick your poison of sandbox/virtualization/... whatever, and use it to get yourself a virtual older Ubuntu LTS and compile with the gcc/g++ it has in there by default. That automatically limits your GLIBC to the one available in that environment.
Avoid depending on external libs outside of foundational ones: like, you should dynamically link ground-level system stuff like glibc, libGL, libxcb/X11/wayland things, libasound/libpulseaudio, possibly GTK+ if you use that, but otherwise preferrably statically link external libs/ship them along if you can. Especially mostly self-contained libs like image loaders, multimedia decoders, etc can cause less breakage on other distros (breakage can be caused e.g. if only present somewhere in a different major version) if you statically ship them.
With that approach you get an old-GLIBC-compatible binary without any manual symbol tweaks, without doing a fully static binary (that may break for more complex programs because glibc hates that, and which may cause licensing issues for you), and without setting up any custom toolchain, any custom glibc copy, or whatever.
<?php
ob_start();
var_dump($_POST['C']);
$result = ob_get_clean();
?>
if you want to capture the result in a variable
Yes I know it is over half a year later and a tad late, BUT
row.names(df) <- NULL
does work. For me at least :-)
And if you have important information in row.names like dates for example, what I do is just :
df$Dates <- as.Date(row.names(df))
This will add a new column on the end but if you want it at the beginning of your data frame
df <- df[,c(7,1,2,3,4,5,6,...)]
Hope this helps those from Google :)
std::fill(v.begin(), v.end(), 0);
Find *.pem
file and place it to the anchors
sub-directory or just simply link the *.pem
file to there.
yum install -y ca-certificates
update-ca-trust force-enable
sudo ln -s /etc/ssl/your-cert.pem /etc/pki/ca-trust/source/anchors/your-cert.pem
update-ca-trust
Just go to the directory which contains jars and insert below command:
find *.jar | xargs grep className.class
Hope this helps!
I'm not sure how you could just check if something isn't undefined and at the same time get an error that it is undefined. What browser are you using?
You could check in the following way (extra = and making length a truthy evaluation)
if (typeof(sub.from) !== 'undefined' && sub.from.length) {
[update]
I see that you reset sub and thereby reset sub.from but fail to re check if sub.from exist:
for (var i = 0; i < sub.from.length; i++) {//<== assuming sub.from.exist
mainid = sub.from[i]['id'];
var sub = afcHelper_Submissions[mainid]; // <== re setting sub
My guess is that the error is not on the if statement but on the for(i...
statement. In Firebug you can break automatically on an error and I guess it'll break on that line (not on the if statement).
I found the following worked for me (revert a single file to pre-merge state):
git reset *currentBranchIntoWhichYouMerged* -- *fileToBeReset*
In my case it was proguard minification process that removed some important classes from my production apk.
The solution was to edit the proguard-rules.pro file and add the following:
-keep class com.someimportant3rdpartypackage.** { *; }
I think the best method :)
int angle = 0;
imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
angle = angle + 90;
imageView.setRotation(angle);
}
});
There you go , i hope this helps
here is the CSS also
#video_box{
float:left;
}
#video_overlays {
position:absolute;
float:left;
width:640px;
min-height:370px;
background-color:#000;
z-index:300000;
}
You can include a .js file which has the script to set the
window.location.href = url;
Where url would be the url you wish to load.
you just need to put this
($('#{{ form.email.id_for_label }}').attr("placeholder","Work email address"));
($('#{{ form.password1.id_for_label }}').attr("placeholder","Password"));
Numpy
has the prod()
function that returns the product of a list, or in this case since it's numpy, it's the product of an array over a given axis:
import numpy
a = [1,2,3,4,5,6]
b = numpy.prod(a)
...or else you can just import numpy.prod()
:
from numpy import prod
a = [1,2,3,4,5,6]
b = prod(a)
Here is the working sample in pom.xml
file.
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>${jacoco.version}</version>
<executions>
<execution>
<id>prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>post-unit-test</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
<execution>
<id>default-check</id>
<goals>
<goal>check</goal>
</goals>
</execution>
</executions>
<configuration>
<dataFile>target/jacoco.exec</dataFile>
<!-- Sets the output directory for the code coverage report. -->
<outputDirectory>target/jacoco-ut</outputDirectory>
<rules>
<rule implementation="org.jacoco.maven.RuleConfiguration">
<element>PACKAGE</element>
<limits>
<limit implementation="org.jacoco.report.check.Limit">
<counter>COMPLEXITY</counter>
<value>COVEREDRATIO</value>
<minimum>0.00</minimum>
</limit>
</limits>
</rule>
</rules>
<excludes>
<exclude>com/pfj/fleet/dao/model/**/*</exclude>
</excludes>
<systemPropertyVariables>
<jacoco-agent.destfile>target/jacoco.exec</jacoco-agent.destfile>
</systemPropertyVariables>
</configuration>
</plugin>
It's my first time running Android project today through Android Studio since its 2.x version, and I have the same problem. However, this is with the Flutter plugin. I have a workaround for people with similar setup.
My setup:
ANDROID_HOME
is defined, PATH
includes all the required tool pathsObservation
adb devices
gives the correct device info;flutter devices
shows correct device info with more details;Android
as detected USB device;<no devices>
;My workaround
cd
to my project root;flutter run
and the app is correctly deployed and runs fine;After that, my observation
But at least I'm no longer blocked.
Reference:
One option you could consider is using CSS variables. The idea is that you set the property you want to change to a CSS variable. Then, within your JS, change that variable's value.
See example below
function changeColor(newColor) {
document.documentElement.style.setProperty("--anchor-hover-color", newColor);
// ^^^^^^^^^^^-- select the root
}
_x000D_
:root {
--anchor-hover-color: red;
}
a:hover {
color: var(--anchor-hover-color);
}
_x000D_
<a href="#">Hover over me</a>
<button onclick="changeColor('lime')">Change to lime</button>
<button onclick="changeColor('red')">Change to red</button>
_x000D_
There are a couple of CSS 3 measurement units called:
From the linked W3 Candidate Recommendation above:
The viewport-percentage lengths are relative to the size of the initial containing block. When the height or width of the initial containing block is changed, they are scaled accordingly.
These units are vh
(viewport height), vw
(viewport width), vmin
(viewport minimum length) and vmax
(viewport maximum length).
For this question, we can make use of vh
: 1vh
is equal to 1% of the viewport's height. That is to say, 100vh
is equal to the height of the browser window, regardless of where the element is situated in the DOM tree:
<div></div>
div {
height: 100vh;
}
This is literally all that's needed. Here is a JSFiddle example of this in use.
This is currently supported on all up-to-date major browsers apart from Opera Mini. Check out Can I use... for further support.
In the case of the question at hand, featuring a left and a right divider, here is a JSFiddle example showing a two-column layout involving both vh
and vw
.
100vh
different to 100%
?Take this layout for example:
<body style="height:100%">
<div style="height:200px">
<p style="height:100%; display:block;">Hello, world!</p>
</div>
</body>
The p
tag here is set to 100% height, but because its containing div
has 200 pixels height, 100% of 200 pixels becomes 200 pixels, not 100% of the body
height. Using 100vh
instead means that the p
tag will be 100% height of the body
regardless of the div
height. Take a look at this accompanying JSFiddle to easily see the difference!
Alternative to @Peter Monks.
If the number in the 'in' statement is small and fixed.
DECLARE @var1 varchar(30), @var2 varchar(30), @var3 varchar(30);
SET @var1 = 'james';
SET @var2 = 'same';
SET @var3 = 'dogcat';
Select * FROM Database Where x in (@var1,@var2,@var3);
I had to add a Return-Path header in emails send by a Redmine instance. I agree with greatwolf only the sender can determine a correct (non default) Return-Path. The case is the following : E-mails are send with the default email address : [email protected] But we want that the real user initiating the action receives the bounce emails, because he will be the one knowing how to fix wrong recipients emails (and not the application adminstrators that have other cats to whip :-) ). We use this and it works perfectly well with exim on the application server and zimbra as the final company mail server.
If you have your navigation <ul>
with class #nav
Then you need to put that <ul>
item within a div container. Make your div container the 100% width. and set the text-align: element to center in the div container. Then in your <ul>
set that class to have 3 particular elements: text-align:center; position: relative; and display: inline-block;
that should center it.
You can just convert a full outer join, e.g.
SELECT fields
FROM firsttable
FULL OUTER JOIN secondtable ON joincondition
into:
SELECT fields
FROM firsttable
LEFT JOIN secondtable ON joincondition
UNION ALL
SELECT fields (replacing any fields from firsttable with NULL)
FROM secondtable
WHERE NOT EXISTS (SELECT 1 FROM firsttable WHERE joincondition)
Or if you have at least one column, say foo
, in firsttable
that is NOT NULL, you can do:
SELECT fields
FROM firsttable
LEFT JOIN secondtable ON joincondition
UNION ALL
SELECT fields
FROM firsttable
RIGHT JOIN secondtable ON joincondition
WHERE firsttable.foo IS NULL
<TABLE COLS="3" border="0" cellspacing="0" cellpadding="0">
<TR style="vertical-align:top">
<TD>
<!-- The log text-box -->
<div style="height:800px; width:240px; border:1px solid #ccc; font:16px/26px Georgia, Garamond, Serif; overflow:auto;">
Log:
</div>
</TD>
<TD>
<!-- The 2nd column -->
</TD>
<TD>
<!-- The 3rd column -->
</TD>
</TR>
</TABLE>
Although this is a old post, I have spent 3 hours to fix my issue and I think this might help someone in future.
Here is my jquery-dialog
hack to show html content inside an <iframe>
:
let modalProperties = {autoOpen: true, width: 900, height: 600, modal: true, title: 'Modal Title'};
let modalHtmlContent = '<div>My Content First div</div><div>My Content Second div</div>';
// create wrapper iframe
let wrapperIframe = $('<iframe src="" frameborder="0" style="width:100%; height:100%;"></iframe>');
// create jquery dialog by a 'div' with 'iframe' appended
$("<div></div>").append(wrapperIframe).dialog(modalProperties);
// insert html content to iframe 'body'
let wrapperIframeDocument = wrapperIframe[0].contentDocument;
let wrapperIframeBody = $('body', wrapperIframeDocument);
wrapperIframeBody.html(modalHtmlContent);
This will also happen if you have written compileSdkVersion = 22
e.g. (as used in the "new new" Android build system) instead of compileSdkVersion 22
.
I my case \xe2 was a ’
which should be replaced by '
.
In general I recommend to convert UTF-8 to ASCII using e.g. https://onlineasciitools.com/convert-utf8-to-ascii
However if you want to keep UTF-8 you can use
#-*- mode: python -*-
# -*- coding: utf-8 -*-
I noticed following line from error.
exact fetch returns more than requested number of rows
That means Oracle was expecting one row but It was getting multiple rows. And, only dual table has that characteristic, which returns only one row.
Later I recall, I have done few changes in dual table and when I executed dual table. Then found multiple rows.
So, I truncated dual
table and inserted only row which X
value. And, everything working fine.
As a more general solution (but ASCII only!), to include any other separators between words (like commas and semicolons), I suggest:
String s = "I want to walk my dog, cat, and tarantula; maybe even my tortoise.";
String[] words = s.split("\\W+");
The regex means that the delimiters will be anything that is not a word [\W], in groups of at least one [+]. Because [+] is greedy, it will take for instance ';' and ' ' together as one delimiter.
This questions is already answered here. Just put height: 100%
in both the div
and the container td
.