You can add custom colors using bootstrap theming in your config file for example variables.scss
and make sure you import that file before bootstrap when compiling.
$theme-colors: (
"whatever": #900
);
Now you can do .btn-whatever
This needs to be used as of 2020
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.18</version>
</dependency>
If a GPU device has, for example, 4 multiprocessing units, and they can run 768 threads each: then at a given moment no more than 4*768 threads will be really running in parallel (if you planned more threads, they will be waiting their turn).
threads are organized in blocks. A block is executed by a multiprocessing unit. The threads of a block can be indentified (indexed) using 1Dimension(x), 2Dimensions (x,y) or 3Dim indexes (x,y,z) but in any case xyz <= 768 for our example (other restrictions apply to x,y,z, see the guide and your device capability).
Obviously, if you need more than those 4*768 threads you need more than 4 blocks. Blocks may be also indexed 1D, 2D or 3D. There is a queue of blocks waiting to enter the GPU (because, in our example, the GPU has 4 multiprocessors and only 4 blocks are being executed simultaneously).
Suppose we want one thread to process one pixel (i,j).
We can use blocks of 64 threads each. Then we need 512*512/64 = 4096 blocks (so to have 512x512 threads = 4096*64)
It's common to organize (to make indexing the image easier) the threads in 2D blocks having blockDim = 8 x 8 (the 64 threads per block). I prefer to call it threadsPerBlock.
dim3 threadsPerBlock(8, 8); // 64 threads
and 2D gridDim = 64 x 64 blocks (the 4096 blocks needed). I prefer to call it numBlocks.
dim3 numBlocks(imageWidth/threadsPerBlock.x, /* for instance 512/8 = 64*/
imageHeight/threadsPerBlock.y);
The kernel is launched like this:
myKernel <<<numBlocks,threadsPerBlock>>>( /* params for the kernel function */ );
Finally: there will be something like "a queue of 4096 blocks", where a block is waiting to be assigned one of the multiprocessors of the GPU to get its 64 threads executed.
In the kernel the pixel (i,j) to be processed by a thread is calculated this way:
uint i = (blockIdx.x * blockDim.x) + threadIdx.x;
uint j = (blockIdx.y * blockDim.y) + threadIdx.y;
I have created a sorting function in Typescript which we can use to search strings, dates and numbers in array of objects. It can also sort on multiple fields.
export type SortType = 'string' | 'number' | 'date';
export type SortingOrder = 'asc' | 'desc';
export interface SortOptions {
sortByKey: string;
sortType?: SortType;
sortingOrder?: SortingOrder;
}
class CustomSorting {
static sortArrayOfObjects(fields: SortOptions[] = [{sortByKey: 'value', sortType: 'string', sortingOrder: 'desc'}]) {
return (a, b) => fields
.map((field) => {
if (!a[field.sortByKey] || !b[field.sortByKey]) {
return 0;
}
const direction = field.sortingOrder === 'asc' ? 1 : -1;
let firstValue;
let secondValue;
if (field.sortType === 'string') {
firstValue = a[field.sortByKey].toUpperCase();
secondValue = b[field.sortByKey].toUpperCase();
} else if (field.sortType === 'number') {
firstValue = parseInt(a[field.sortByKey], 10);
secondValue = parseInt(b[field.sortByKey], 10);
} else if (field.sortType === 'date') {
firstValue = new Date(a[field.sortByKey]);
secondValue = new Date(b[field.sortByKey]);
}
return firstValue > secondValue ? direction : firstValue < secondValue ? -(direction) : 0;
})
.reduce((pos, neg) => pos ? pos : neg, 0);
}
}
}
Usage:
const sortOptions = [{
sortByKey: 'anyKey',
sortType: 'string',
sortingOrder: 'asc',
}];
arrayOfObjects.sort(CustomSorting.sortArrayOfObjects(sortOptions));
Right-click on the highest hierarchy you want to revert >> Revert
or Revert to Revision
Adapted from answers above for many variables, with good performance, just one $GLOBALS scan for many
function compact_assoc(&$v1='__undefined__', &$v2='__undefined__',&$v3='__undefined__',&$v4='__undefined__',&$v5='__undefined__',&$v6='__undefined__',&$v7='__undefined__',&$v8='__undefined__',&$v9='__undefined__',&$v10='__undefined__',&$v11='__undefined__',&$v12='__undefined__',&$v13='__undefined__',&$v14='__undefined__',&$v15='__undefined__',&$v16='__undefined__',&$v17='__undefined__',&$v18='__undefined__',&$v19='__undefined__'
) {
$defined_vars=get_defined_vars();
$result=Array();
$reverse_key=Array();
$original_value=Array();
foreach( $defined_vars as $source_key => $source_value){
if($source_value==='__undefined__') break;
$original_value[$source_key]=$$source_key;
$new_test_value="PREFIX".rand()."SUFIX";
$reverse_key[$new_test_value]=$source_key;
$$source_key=$new_test_value;
}
foreach($GLOBALS as $key => &$value){
if( is_string($value) && isset($reverse_key[$value]) ) {
$result[$key]=&$value;
}
}
foreach( $original_value as $source_key => $original_value){
$$source_key=$original_value;
}
return $result;
}
$a = 'A';
$b = 'B';
$c = '999';
$myArray=Array ('id'=>'id123','name'=>'Foo');
print_r(compact_assoc($a,$b,$c,$myArray) );
//print
Array
(
[a] => A
[b] => B
[c] => 999
[myArray] => Array
(
[id] => id123
[name] => Foo
)
)
Service: startservice can cause side affects,best way to use messenger and pass data.
private CallBackHandler mServiceHandler= new CallBackHandler(this);
private Messenger mServiceMessenger=null;
//flag with which the activity sends the data to service
private static final int DO_SOMETHING=1;
private static class CallBackHandler extends android.os.Handler {
private final WeakReference<Service> mService;
public CallBackHandler(Service service) {
mService= new WeakReference<Service>(service);
}
public void handleMessage(Message msg) {
//Log.d("CallBackHandler","Msg::"+msg);
if(DO_SOMETHING==msg.arg1)
mSoftKeyService.get().dosomthing()
}
}
Activity:Get Messenger from Intent fill it pass data and pass the message back to service
private Messenger mServiceMessenger;
@Override
protected void onCreate(Bundle savedInstanceState) {
mServiceMessenger = (Messenger)extras.getParcelable("myHandler");
}
private void sendDatatoService(String data){
Intent serviceIntent= new
Intent(BaseActivity.this,Service.class);
Message msg = Message.obtain();
msg.obj =data;
msg.arg1=Service.DO_SOMETHING;
mServiceMessenger.send(msg);
}
Horizontal centering is easy: text-align: center;
. Vertical centering of text inside an element can be done by setting line-height
equal to the container height, but this has subtle differences between browsers. On small elements, like a notification badge, these are more pronounced.
Better is to set line-height
equal to font-size
(or slightly smaller) and use padding. You'll have to adjust your height to accomodate.
Here's a CSS-only, single <div>
solution that looks pretty iPhone-like. They expand with content.
Demo: http://jsfiddle.net/ThinkingStiff/mLW47/
Output:
CSS:
.badge {
background: radial-gradient( 5px -9px, circle, white 8%, red 26px );
background-color: red;
border: 2px solid white;
border-radius: 12px; /* one half of ( (border * 2) + height + padding ) */
box-shadow: 1px 1px 1px black;
color: white;
font: bold 15px/13px Helvetica, Verdana, Tahoma;
height: 16px;
min-width: 14px;
padding: 4px 3px 0 3px;
text-align: center;
}
HTML:
<div class="badge">1</div>
<div class="badge">2</div>
<div class="badge">3</div>
<div class="badge">44</div>
<div class="badge">55</div>
<div class="badge">666</div>
<div class="badge">777</div>
<div class="badge">8888</div>
<div class="badge">9999</div>
No, you can't change scrollbars placement without any additional issues.
You can change text-direction to right-to-left ( rtl ), but it also change text position inside block.
This code can helps you, but I not sure it works in all browsers and OS.
<element style="direction: rtl; text-align: left;" />
You are giving the span a 100% width resulting in it expanding to the size of the parent. This means you can’t center-align it, as there is no room to move it.
You could give the span a set width, then add the margin:0 auto
again. This would center-align it.
.left
{
background-color: #999999;
height: 50px;
width: 24.5%;
}
span.panelTitleTxt
{
display:block;
width:100px;
height: 100%;
margin: 0 auto;
}
Composite keys can also be done with Entity Framework Fluent API
public class MyModelConfiguration : EntityTypeConfiguration<MyModel>
{
public MyModelConfiguration()
{
ToTable("MY_MODEL_TABLE");
HasKey(x => new { x.SourceId, x.StartDate, x.EndDate, x.GmsDate });
...
}
}
The System.Linq.Enumerable.Count
extension method on IEnumerable<T>
has the following implementation:
ICollection<T> c = source as ICollection<TSource>;
if (c != null)
return c.Count;
int result = 0;
using (IEnumerator<T> enumerator = source.GetEnumerator())
{
while (enumerator.MoveNext())
result++;
}
return result;
So it tries to cast to ICollection<T>
, which has a Count
property, and uses that if possible. Otherwise it iterates.
So your best bet is to use the Count()
extension method on your IEnumerable<T>
object, as you will get the best performance possible that way.
This is because str.index(ch)
will return the index where ch
occurs the first time. Try:
def find(s, ch):
return [i for i, ltr in enumerate(s) if ltr == ch]
This will return a list of all indexes you need.
P.S. Hugh's answer shows a generator function (it makes a difference if the list of indexes can get large). This function can also be adjusted by changing []
to ()
.
There are many ways to do this, one way is:
sqlite3 auction.db
Followed by:
sqlite> .read create.sql
In general, the SQLite project has really fantastic documentation! I know we often reach for Google before the docs, but in SQLite's case, the docs really are technical writing at its best. It's clean, clear, and concise.
Python has a "not" operator, right? Is it not just "not"? As in,
return not bool
It would depend on the browser's default stylesheet. You can view an (unofficial) table of CSS2.1 User Agent stylesheet defaults here.
Based on the page listed above, the default sizes look something like this:
IE7 IE8 FF2 FF3 Opera Safari 3.1
H1 24pt 2em 32px 32px 32px 32px
H2 18pt 1.5em 24px 24px 24px 24px
H3 13.55pt 1.17em 18.7333px 18.7167px 18px 19px
H4 n/a n/a n/a n/a n/a n/a
H5 10pt 0.83em 13.2667px 13.2833px 13px 13px
H6 7.55pt 0.67em 10.7333px 10.7167px 10px 11px
Also worth taking a look at is the default stylesheet for HTML 4. The W3C recommends using these styles as the default. An abridged excerpt:
h1 { font-size: 2em; }
h2 { font-size: 1.5em; }
h3 { font-size: 1.17em; }
h4 { font-size: 1.12em; }
h5 { font-size: .83em; }
h6 { font-size: .75em; }
Hope this information is helpful.
As the error message says, non-default argument til
should not follow default argument hgt
.
Changing order of parameters (function call also be adjusted accordingly) or making hgt
non-default parameter will solve your problem.
def a(len1, hgt=len1, til, col=0):
->
def a(len1, hgt, til, col=0):
UPDATE
Another issue that is hidden by the SyntaxError.
os.system
accepts only one string parameter.
def a(len1, hgt, til, col=0):
system('mode con cols=%s lines=%s' % (len1, hgt))
system('title %s' % til)
system('color %s' % col)
Send the data from the form:
$("#change_section_type").live "change", ->
url = $(this).attr("data-url")
postData = $(this).parents("#contract_setting_form").serializeArray()
$.ajax
type: "PUT"
url: url
dataType: "script"
data: postData
Well, printing itself would suggest a predefined function...
Presumably, though, you could obtain the characters and concatenate them manually in reverse (i.e. loop over it backwards). Of course, you could say concatenation is a predefined function... so maybe the char array itself. But again... why?
Is the source allowed to contain "egaugnal detatneiro tcejbo si avaj" ;-p
Also - note that string reversal is actually pretty complex if you consider unicode combining characters, surrogate pairs, etc. You should note the caveat that most string reversal mechanisms will only deal with the more common cases, but may struggle with i18n.
You can simply check the typeof userData
& JSON.parse()
it only if it's string
:
var userData = _data;
var newData;
if (typeof userData === 'object')
newData = userData.data.userList; // dont parse if its object
else if (typeof userData === 'string')
newData = JSON.parse(userData).data.userList; // parse if its string
<style>
div
{
height:200px;
width:200px;
-webkit-animation: spin 2s infinite linear;
}
@-webkit-keyframes spin {
0% {-webkit-transform: rotate(0deg);}
100% {-webkit-transform: rotate(360deg);}
}
</style>
</head>
<body>
<div><img src="1.png" height="200px" width="200px"/></div>
</body>
Adding the @ElementCollection
to the List field solved this issue:
@Column
@ElementCollection(targetClass=Integer.class)
private List<Integer> countries;
It may be faster if you create a materialized view (with schema binding). Non-materialized views execute just like the regular query.
$userRecord = Model::where([['email','=',$email],['password','=', $password]])->first();
or
$userRecord = self::where([['email','=',$email],['password','=', $password]])->first();
I` think this condition is better then 2 where. Its where condition array in array of where conditions;
I tried many ways to send a mail from XAMPP Localhost, but since XAMPP hasn't SSL Certificate, my email request blocked by Gmail or similar SMTP Service providers.
Then I used MailHog for local smtp server, what you need to do is just run it. localhost:1025 is for smtp server, localhost:8025 is for mail server, where you can check the emails you sent.
here is my code:
require_once "src/PHPMailer.php";
require_once "src/SMTP.php";
require_once "src/Exception.php";
$mail = new PHPMailer\PHPMailer\PHPMailer();
//Server settings
$mail->SMTPDebug = 3; // Enable verbose debug output
$mail->isSMTP(); // Send using SMTP
$mail->Host = 'localhost'; // Set the SMTP server to send through
$mail->Port = 1025; // TCP port to connect to
// $mail->Username = ''; // SMTP username
// $mail->Password = ''; // SMTP password
// $mail->SMTPAuth = true; // Enable SMTP authentication
// $mail->SMTPSecure = 'tls'; // Enable TLS encryption; `PHPMailer::ENCRYPTION_SMTPS` also accepted
//Recipients
$mail->setFrom('[email protected]', 'Mailer');
$mail->addAddress('[email protected]', 'Joe User'); // Add a recipient
// Content
$mail->isHTML(true); // Set email format to HTML
$mail->Subject = 'Here is the subject';
$mail->Body = 'This is the HTML message body <b>in bold!</b>';
$mail->AltBody = 'This is the body in plain text for non-HTML mail clients';
if(!$mail->Send()) {
echo "Mailer Error: " . $mail->ErrorInfo;
} else {
echo "Message sent!";
}
write.csv(t, "t.csv", row.names=FALSE)
From ?write.csv
:
row.names: either a logical value indicating whether the row names of
‘x’ are to be written along with ‘x’, or a character vector
of row names to be written.
Uncompyle6 works for Python 3.x and 2.7 - recommended option as it's most recent tool, aiming to unify earlier forks and focusing on automated unit testing. The GitHub page has more details.
With these tools, you get your code back including variable names and docstrings, but without the comments.
The older Uncompyle2 supports Python 2.7 only. This worked well for me some time ago to decompile the .pyc bytecode into .py, whereas unpyclib crashed with an exception.
Change the checkboxes so that the name includes the index inside the brackets:
<input type="checkbox" class="checkbox_veh" id="checkbox_addveh<?php echo $i; ?>" <?php if ($vehicle_feature[$i]->check) echo "checked"; ?> name="feature[<?php echo $i; ?>]" value="<?php echo $vehicle_feature[$i]->id; ?>">
The checkboxes that aren't checked are never submitted. The boxes that are checked get submitted, but they get numbered consecutively from 0, and won't have the same indexes as the other corresponding input fields.
Use:
Array.prototype.contains = function(x){
var retVal = -1;
// x is a primitive type
if(["string","number"].indexOf(typeof x)>=0 ){ retVal = this.indexOf(x);}
// x is a function
else if(typeof x =="function") for(var ix in this){
if((this[ix]+"")==(x+"")) retVal = ix;
}
//x is an object...
else {
var sx=JSON.stringify(x);
for(var ix in this){
if(typeof this[ix] =="object" && JSON.stringify(this[ix])==sx) retVal = ix;
}
}
//Return False if -1 else number if numeric otherwise string
return (retVal === -1)?false : ( isNaN(+retVal) ? retVal : +retVal);
}
I know it's not the best way to go, but since there is no native IComparable way to interact between objects, I guess this is as close as you can get to compare two entities in an array. Also, extending Array object might not be a wise thing to do, but sometimes it's OK (if you are aware of it and the trade-off).
It's a bug or whatever but the removePersistentDomainForName
is not working while clearing all the NSUserDefaults
values.
So, better option is that to reset the PersistentDomain
and that you can do via following way:
NSUserDefaults.standardUserDefaults().setPersistentDomain(["":""], forName: NSBundle.mainBundle().bundleIdentifier!)
If you use AIX try this This will attach a text file and include a HTML body If this does not work catch the output in the /var/spool/mqueue
#!/usr/bin/kWh
if (( $# < 1 ))
then
echo "\n\tSyntax: $(basename) MAILTO SUBJECT BODY.html ATTACH.txt "
echo "\tmailzatt"
exit
fi
export MAILTO=${[email protected]}
MAILFROM=$(whoami)
SUBJECT=${2-"mailzatt"}
export BODY=${3-/apps/bin/attch.txt}
export ATTACH=${4-/apps/bin/attch.txt}
export HST=$(hostname)
#export BODY="/wrk/stocksum/report.html"
#export ATTACH="/wrk/stocksum/Report.txt"
#export MAILPART=`uuidgen` ## Generates Unique ID
#export MAILPART_BODY=`uuidgen` ## Generates Unique ID
export MAILPART="==".$(date +%d%S)."===" ## Generates Unique ID
export MAILPART_BODY="==".$(date +%d%Sbody)."===" ## Generates Unique ID
(
echo "To: $MAILTO"
echo "From: mailmate@$HST "
echo "Subject: $SUBJECT"
echo "MIME-Version: 1.0"
echo "Content-Type: multipart/mixed; boundary=\"$MAILPART\""
echo ""
echo "--$MAILPART"
echo "Content-Type: multipart/alternative; boundary=\"$MAILPART_BODY\""
echo ""
echo ""
echo "--$MAILPART_BODY"
echo "Content-Type: text/html"
echo "Content-Disposition: inline"
cat $BODY
echo ""
echo "--$MAILPART_BODY--"
echo ""
echo "--$MAILPART"
echo "Content-Type: text/plain"
echo "Content-Disposition: attachment; filename=\"$(basename $ATTACH)\""
echo ""
cat $ATTACH
echo ""
echo "--${MAILPART}--"
) | /usr/sbin/sendmail -t
A more consistent (and less opaque) way to generate inf and -inf is to again use float():
>> positive_inf = float('inf')
>> positive_inf
inf
>> negative_inf = float('-inf')
>> negative_inf
-inf
Note that the size of a float varies depending on the architecture, so it probably best to avoid using magic numbers like 9e999, even if that is likely to work.
import sys
sys.float_info
sys.float_info(max=1.7976931348623157e+308,
max_exp=1024, max_10_exp=308,
min=2.2250738585072014e-308, min_exp=-1021,
min_10_exp=-307, dig=15, mant_dig=53,
epsilon=2.220446049250313e-16, radix=2, rounds=1)
You can also open a required file through a prompt, This helps when you want to select file from different path and different file.
Sub openwb()
Dim wkbk As Workbook
Dim NewFile As Variant
NewFile = Application.GetOpenFilename("microsoft excel files (*.xlsm*), *.xlsm*")
If NewFile <> False Then
Set wkbk = Workbooks.Open(NewFile)
End If
End Sub
If you look at the documentation you can take just the properties you're interested in from the window
object i.e.
protocol + '//' + hostname + pathname
Okay, I am now connecting without the semaphore timeout problem.
If anyone reading ever encounters the same thing, I hope that this procedure works for you; but no promises; hey, it's windows.
In my case this was Windows 7
I got a little hint from This page on eHow; not sure if that might help anyone or not.
So anyway, this was the simple twenty three step procedure that worked for me
Click on start button
Choose Control Panel
From Control Panel, choose Device Manger
From Device Manager, choose Universal Serial Bus Controllers
From Universal Serial Bus Controllers, click the little sideways triangle
I cannot predict what you'll see on your computer, but on mine I get a long drop-down list
Begin the investigation to figure out which one of these members of this list is the culprit...
On each member of the drop-down list, right-click on the name
A list will open, choose Properties
Guesswork time: using the various tabs near the top of the resulting window which opens, make a guess if this is the USB adapter driver which is choking your stuff with semaphore timeouts
Once you have made the proper guess, then close the USB Root Hub Properties window (but leave the Device Manager window open).
Physically disonnect anything and everything from that USB hub.
Unplug it.
Return your mouse pointer to that USB Root Hub in the list which you identified earlier.
Right click again
Choose Uninstall
Let Windows do its thing
Wait a little while
Power Down the whole computer if you have the time; some say this is required. I think I got away without it.
Plug the USB hub back into a USB connector on the PC
If the list in the device manager blinks and does a few flash-bulbs, it's okay.
Plug the BlueTooth connector back into the USB hub
Let windows do its thing some more
Within two minutes, I had a working COM port again, no semaphore timeouts.
Hope it works for anyone else who may be having a similar problem.
(This has been deprecated now you can use ImageBackground)
This is how I've done it. The main deal was getting rid of the static fixed sizes.
class ReactStrap extends React.Component {
render() {
return (
<Image source={require('image!background')} style={styles.container}>
... Your Content ...
</Image>
);
}
}
var styles = StyleSheet.create({
container: {
flex: 1,
// remove width and height to override fixed static size
width: null,
height: null,
}
};
Question: What's different between UTF-8 and UTF-8 without a BOM? Which is better?
Here are some excerpts from the Wikipedia article on the byte order mark (BOM) that I believe offer a solid answer to this question.
On the meaning of the BOM and UTF-8:
The Unicode Standard permits the BOM in UTF-8, but does not require or recommend its use. Byte order has no meaning in UTF-8, so its only use in UTF-8 is to signal at the start that the text stream is encoded in UTF-8.
Argument for NOT using a BOM:
The primary motivation for not using a BOM is backwards-compatibility with software that is not Unicode-aware... Another motivation for not using a BOM is to encourage UTF-8 as the "default" encoding.
Argument FOR using a BOM:
The argument for using a BOM is that without it, heuristic analysis is required to determine what character encoding a file is using. Historically such analysis, to distinguish various 8-bit encodings, is complicated, error-prone, and sometimes slow. A number of libraries are available to ease the task, such as Mozilla Universal Charset Detector and International Components for Unicode.
Programmers mistakenly assume that detection of UTF-8 is equally difficult (it is not because of the vast majority of byte sequences are invalid UTF-8, while the encodings these libraries are trying to distinguish allow all possible byte sequences). Therefore not all Unicode-aware programs perform such an analysis and instead rely on the BOM.
In particular, Microsoft compilers and interpreters, and many pieces of software on Microsoft Windows such as Notepad will not correctly read UTF-8 text unless it has only ASCII characters or it starts with the BOM, and will add a BOM to the start when saving text as UTF-8. Google Docs will add a BOM when a Microsoft Word document is downloaded as a plain text file.
On which is better, WITH or WITHOUT the BOM:
The IETF recommends that if a protocol either (a) always uses UTF-8, or (b) has some other way to indicate what encoding is being used, then it “SHOULD forbid use of U+FEFF as a signature.”
My Conclusion:
Use the BOM only if compatibility with a software application is absolutely essential.
Also note that while the referenced Wikipedia article indicates that many Microsoft applications rely on the BOM to correctly detect UTF-8, this is not the case for all Microsoft applications. For example, as pointed out by @barlop, when using the Windows Command Prompt with UTF-8†, commands such type
and more
do not expect the BOM to be present. If the BOM is present, it can be problematic as it is for other applications.
† The chcp
command offers support for UTF-8 (without the BOM) via code page 65001.
Like this:
>>> s='1\t2\t3\t4\t5'
>>> [x for x in s.split('\t')]
['1', '2', '3', '4', '5']
For a file:
# create test file:
>>> with open('tabs.txt','w') as o:
... s='\n'.join(['\t'.join(map(str,range(i,i+10))) for i in [0,10,20,30]])
... print >>o, s
#read that file:
>>> with open('tabs.txt','r') as f:
... LoL=[x.strip().split('\t') for x in f]
...
>>> LoL
[['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
['10', '11', '12', '13', '14', '15', '16', '17', '18', '19'],
['20', '21', '22', '23', '24', '25', '26', '27', '28', '29'],
['30', '31', '32', '33', '34', '35', '36', '37', '38', '39']]
>>> LoL[2][3]
23
If you want the input transposed:
>>> with open('tabs.txt','r') as f:
... LoT=zip(*(line.strip().split('\t') for line in f))
...
>>> LoT[2][3]
'32'
Or (better still) use the csv module in the default distribution...
This should work
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.verify;
verify(bar).DoStuff(any(Foo[].class));
Using for and foreach loop
var dictionary = {
data: [{ id: "0", name: "ABC" }, { id: "1", name: "DEF" }],
images: [{ id: "0", name: "PQR" }, { id: "1", name: "xyz" }]
};
dictionary.data.forEach(item => {
console.log(item.id + " " + item.name);
});
for (var i = 0; i < dictionary.data.length; i++) {
console.log(dictionary.data[i].id + " " + dictionary.data[i].name);
}
Are you asking for renaming column itself or capitalise the data inside column? If its data you've to change, then use this:
UPDATE [yourtable]
SET word=UPPER(LEFT(word,1))+LOWER(SUBSTRING(word,2,LEN(word)))
If you just wanted to change it only for displaying and do not need the actual data in table to change:
SELECT UPPER(LEFT(word,1))+LOWER(SUBSTRING(word,2,LEN(word))) FROM [yourtable]
Hope this helps.
EDIT: I realised about the '-' so here is my attempt to solve this problem in a function.
CREATE FUNCTION [dbo].[CapitalizeFirstLetter]
(
--string need to format
@string VARCHAR(200)--increase the variable size depending on your needs.
)
RETURNS VARCHAR(200)
AS
BEGIN
--Declare Variables
DECLARE @Index INT,
@ResultString VARCHAR(200)--result string size should equal to the @string variable size
--Initialize the variables
SET @Index = 1
SET @ResultString = ''
--Run the Loop until END of the string
WHILE (@Index <LEN(@string)+1)
BEGIN
IF (@Index = 1)--first letter of the string
BEGIN
--make the first letter capital
SET @ResultString =
@ResultString + UPPER(SUBSTRING(@string, @Index, 1))
SET @Index = @Index+ 1--increase the index
END
-- IF the previous character is space or '-' or next character is '-'
ELSE IF ((SUBSTRING(@string, @Index-1, 1) =' 'or SUBSTRING(@string, @Index-1, 1) ='-' or SUBSTRING(@string, @Index+1, 1) ='-') and @Index+1 <> LEN(@string))
BEGIN
--make the letter capital
SET
@ResultString = @ResultString + UPPER(SUBSTRING(@string,@Index, 1))
SET
@Index = @Index +1--increase the index
END
ELSE-- all others
BEGIN
-- make the letter simple
SET
@ResultString = @ResultString + LOWER(SUBSTRING(@string,@Index, 1))
SET
@Index = @Index +1--incerase the index
END
END--END of the loop
IF (@@ERROR
<> 0)-- any error occur return the sEND string
BEGIN
SET
@ResultString = @string
END
-- IF no error found return the new string
RETURN @ResultString
END
So then the code would be:
UPDATE [yourtable]
SET word=dbo.CapitalizeFirstLetter([STRING TO GO HERE])
A table contains data, a view is just a SELECT
statement which has been saved in the database (more or less, depending on your database).
The advantage of a view is that it can join data from several tables thus creating a new view of it. Say you have a database with salaries and you need to do some complex statistical queries on it.
Instead of sending the complex query to the database all the time, you can save the query as a view and then SELECT * FROM view
It is a syntax sugar for faster query writing. Its implementation in pseudocode:
def filter_by(self, **kwargs):
return self.filter(sql.and_(**kwargs))
For AND you can simply write:
session.query(db.users).filter_by(name='Joe', surname='Dodson')
btw
session.query(db.users).filter(or_(db.users.name=='Ryan', db.users.country=='England'))
can be written as
session.query(db.users).filter((db.users.name=='Ryan') | (db.users.country=='England'))
Also you can get object directly by PK via get
method:
Users.query.get(123)
# And even by a composite PK
Users.query.get(123, 321)
When using get
case its important that object can be returned without database request from identity map
which can be used as cache(associated with transaction)
For me to make it work again I just deleted the files
ib_logfile0
and
ib_logfile1
.
from :
/Applications/MAMP/db/mysql56/ib_logfile0
Mac 10.13.3
MAMP:Version 4.3 (853)
I am an operating system that only allocates you memory in 10mb partitions.
Internal Fragmentation
Fulfilling this request has just led to 3mb of internal fragmentation.
External Fragmentation
Fulfilling this request has just led to external fragmentation
For "Xamarin Android":
FindViewById<Button>(Resource.Id.Button1).Visibility = ViewStates.Gone;
For full-screen frame redirects and similar things I have two methods. Both work fine on mobile and desktop.
Note this are complete cross-browser working, valid HTML files. Just change title
and src
for your needs.
1. this is my favorite:
<!DOCTYPE html>
<meta charset=utf-8>
<title> Title-1 </title>
<meta name=viewport content="width=device-width">
<style>
html, body, iframe { height:100%; width:100%; margin:0; border:0; display:block }
</style>
<iframe src=src1></iframe>
<!-- More verbose CSS for better understanding:
html { height:100% }
body { height:100%; margin:0 }
iframe { height:100%; width:100%; border:0; display:block }
-->
or 2. something like that, slightly shorter:
<!DOCTYPE html>
<meta charset=utf-8>
<title> Title-2 </title>
<meta name=viewport content="width=device-width">
<iframe src=src2 style="position:absolute; top:0; left:0; width:100%; height:100%; border:0">
</iframe>
Note:
The above examples avoid using height:100vh
because old browsers don't know it (maybe moot these days) and height:100vh
is not always equal to height:100%
on mobile browsers (probably not applicable here). Otherwise, vh
simplifies things a little bit, so
3. this is an example using vh (not my favorite, less compatible with little advantage)
<!DOCTYPE html>
<meta charset=utf-8>
<title> Title-3 </title>
<meta name=viewport content="width=device-width">
<style>
body { margin:0 }
iframe { display:block; width:100%; height:100vh; border:0 }
</style>
<iframe src=src3></iframe>
IMPORTANT DISCLAIMER: Information provided below is for educational purposes only! Extending a trial period of Visual Studio Community 2017 might be ILLEGAL!
You have the same effect when You remove all files from HKEY_CLASSES_ROOT\Licenses\5C505A59-E312-4B89-9508-E162F8150517. Run "Visual Studio Installer" and chose option "repair". Now You have new 30 days of trial. But You lost all configuration in Your VS.
A minor addition to the answers already posted: object files not compiled to be position independent are relocatable; they contain relocation table entries.
These entries allow the loader (that bit of code that loads a program into memory) to rewrite the absolute addresses to adjust for the actual load address in the virtual address space.
An operating system will try to share a single copy of a "shared object library" loaded into memory with all the programs that are linked to that same shared object library.
Since the code address space (unlike sections of the data space) need not be contiguous, and because most programs that link to a specific library have a fairly fixed library dependency tree, this succeeds most of the time. In those rare cases where there is a discrepancy, yes, it may be necessary to have two or more copies of a shared object library in memory.
Obviously, any attempt to randomize the load address of a library between programs and/or program instances (so as to reduce the possibility of creating an exploitable pattern) will make such cases common, not rare, so where a system has enabled this capability, one should make every attempt to compile all shared object libraries to be position independent.
Since calls into these libraries from the body of the main program will also be made relocatable, this makes it much less likely that a shared library will have to be copied.
Use system("cls")
to clear the screen:
#include <stdlib.h>
int main(void)
{
system("cls");
return 0;
}
WebDriver driver=new FirefoxDriver();
driver.get("http://www.java-examples.com/java-string-examples");
Thread.sleep(3000);
//Switch to nested frame
driver.switchTo().frame("aswift_2").switchTo().frame("google_ads_frame3");
Month // Enum class, predefining and naming a dozen objects, one for each month of the year.
.of( 12 ) // Retrieving one of the enum objects by number, 1-12.
.getDisplayName(
TextStyle.FULL_STANDALONE ,
Locale.CANADA_FRENCH // Locale determines the human language and cultural norms used in localizing.
)
Since Java 1.8 (or 1.7 & 1.6 with the ThreeTen-Backport) you can use this:
Month.of(integerMonth).getDisplayName(TextStyle.FULL_STANDALONE, locale);
Note that integerMonth
is 1-based, i.e. 1 is for January. Range is always from 1 to 12 for January-December (i.e. Gregorian calendar only).
Using python-dateutil:
In [1]: import dateutil.parser as dparser
In [18]: dparser.parse("monkey 2010-07-10 love banana",fuzzy=True)
Out[18]: datetime.datetime(2010, 7, 10, 0, 0)
Invalid dates raise a ValueError
:
In [19]: dparser.parse("monkey 2010-07-32 love banana",fuzzy=True)
# ValueError: day is out of range for month
It can recognize dates in many formats:
In [20]: dparser.parse("monkey 20/01/1980 love banana",fuzzy=True)
Out[20]: datetime.datetime(1980, 1, 20, 0, 0)
Note that it makes a guess if the date is ambiguous:
In [23]: dparser.parse("monkey 10/01/1980 love banana",fuzzy=True)
Out[23]: datetime.datetime(1980, 10, 1, 0, 0)
But the way it parses ambiguous dates is customizable:
In [21]: dparser.parse("monkey 10/01/1980 love banana",fuzzy=True, dayfirst=True)
Out[21]: datetime.datetime(1980, 1, 10, 0, 0)
Neither a ":" nor a "." will show up in valid Base64, so I think you can unambiguously throw away the http://www.stackoverflow.com
line. In Perl, say, something like
my $sanitized_str = join q{}, grep {!/[^A-Za-z0-9+\/=]/} split /\n/, $str;
say decode_base64($sanitized_str);
might be what you want. It produces
This is simple ASCII Base64 for StackOverflow exmaple.
You have to make custom function for html entities:
function htmlEntities(str) {
return String(str).replace(/&/g, '&').replace(/</g, '<').replace(/>/g,'>').replace(/"/g, '"');
}
Godaddy hosting it seems fixed on .htaccess
, myself it is working
RewriteRule ^(.*)$ index.php/$1 [L]
to
RewriteRule ^(.*)$ index.php?/$1 [QSA,L]
If you are already using Qt
QSettings my_settings("filename.ini", QSettings::IniFormat);
Then read a value
my_settings.value("GroupName/ValueName", <<DEFAULT_VAL>>).toInt()
There are a bunch of other converter that convert your INI values into both standard types and Qt types. See Qt documentation on QSettings for more information.
You can try using Scanner if you are using JDK5 or higher.
Scanner scan = new Scanner(file);
scan.useDelimiter("\\Z");
String content = scan.next();
Or you can also use Guava
String data = Files.toString(new File("path.txt"), Charsets.UTF8);
You can use String.Join
. If you have a List<string>
then you can call ToArray
first:
List<string> names = new List<string>() { "John", "Anna", "Monica" };
var result = String.Join(", ", names.ToArray());
In .NET 4 you don't need the ToArray
anymore, since there is an overload of String.Join
that takes an IEnumerable<string>
.
Results:
John, Anna, Monica
function zeroFilledArray(size) {
return new Array(size + 1).join('0').split('');
}
A common solution is to upgrade magento setup by running this command
php bin/magento setup:upgrade && php bin/magento setup:di:compile
Otherwise just check var/report/{error number}
foreach (DataRow dr in ds.Tables[0].Rows)
{
//your code here
}
Format won't be completely the same, but it does write the data to a text file, and R will be able to reread it using dget
when you want to retrieve it again as a list.
dput(mylist, "mylist.txt")
Don't put the DB::insert() inside of the Schema::create(), because the create method has to finish making the table before you can insert stuff. Try this instead:
public function up()
{
// Create the table
Schema::create('users', function($table){
$table->increments('id');
$table->string('email', 255);
$table->string('password', 64);
$table->boolean('verified');
$table->string('token', 255);
$table->timestamps();
});
// Insert some stuff
DB::table('users')->insert(
array(
'email' => '[email protected]',
'verified' => true
)
);
}
Following the greenhoorn's answer, you can use "Extensions" like this:
public static class HttpClientExtensions
{
public static HttpClient AddTokenToHeader(this HttpClient cl, string token)
{
//int timeoutSec = 90;
//cl.Timeout = new TimeSpan(0, 0, timeoutSec);
string contentType = "application/json";
cl.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue(contentType));
cl.DefaultRequestHeaders.Add("Authorization", String.Format("Bearer {0}", token));
var userAgent = "d-fens HttpClient";
cl.DefaultRequestHeaders.Add("User-Agent", userAgent);
return cl;
}
}
And use:
string _tokenUpdated = "TOKEN";
HttpClient _client;
_client.AddTokenToHeader(_tokenUpdated).GetAsync("/api/values")
For Python >= 2.7, use subprocess.check_output()
.
http://docs.python.org/2/library/subprocess.html#subprocess.check_output
If you want to leave only numbers - use preg_replace like: (int)preg_replace("/[^\d]+/","",$b).
There is a bug with cygwin's chmod, please refer to:
https://superuser.com/questions/397288/using-cygwin-in-windows-8-chmod-600-does-not-work-as-expected
chgrp -Rv Users ~/.ssh/*
chmod -vR 600 ~/.ssh/id_rsa
Since ASP.NET MVC 3 RTM is out there is no need for config section for Razor. And these sections can be safely removed.
tree -L 2 -u -g -p -d
Prints the directory tree in a pretty format up to depth 2 (-L 2). Print user (-u) and group (-g) and permissions (-p). Print only directories (-d). tree has a lot of other useful options.
Scanner has a method called hasNext():
Scanner scanner = new Scanner(System.in);
while(scanner.hasNext())
{
System.out.println(scanner.nextInt());
}
<body oncontextmenu="return false">
Use this code to disable right click.
The E stands for the exponent, and it is used to shorten long numbers. Since the input is a math input and exponents are in math to shorten great numbers, so that's why there is an E.
It is displayed like this: 4e.
You should implement a Custom List View, such that you define a Layout once and draw it for every row in the list view.
You need to put the text-align:center
on the containing div, not on the input itself.
If you are facing this issue and everything looks good, try invalidate cache/restart from your IDE. This will resolve the issue in most of the cases.
I figured out what's the problem - it is with orientation changes. If you change camera orientation to 90 or 270 degrees than you need to swap width and height of supported sizes and all will be ok.
Also surface view should lie in a frame layout and have center gravity.
Here is example on C# (Xamarin):
public void SurfaceChanged(ISurfaceHolder holder, Android.Graphics.Format format, int width, int height)
{
_camera.StopPreview();
// find best supported preview size
var parameters = _camera.GetParameters();
var supportedSizes = parameters.SupportedPreviewSizes;
var bestPreviewSize = supportedSizes
.Select(x => new { Width = x.Height, Height = x.Width, Original = x }) // HACK swap height and width because of changed orientation to 90 degrees
.OrderBy(x => Math.Pow(Math.Abs(x.Width - width), 3) + Math.Pow(Math.Abs(x.Height - height), 2))
.First();
if (height == bestPreviewSize.Height && width == bestPreviewSize.Width)
{
// start preview if best supported preview size equals current surface view size
parameters.SetPreviewSize(bestPreviewSize.Original.Width, bestPreviewSize.Original.Height);
_camera.SetParameters(parameters);
_camera.StartPreview();
}
else
{
// if not than change surface view size to best supported (SurfaceChanged will be called once again)
var layoutParameters = _surfaceView.LayoutParameters;
layoutParameters.Width = bestPreviewSize.Width;
layoutParameters.Height = bestPreviewSize.Height;
_surfaceView.LayoutParameters = layoutParameters;
}
}
Pay attention that camera parameters should be set as original size (not swapped), and surface view size should be swapped.
[EDIT]
This answer has been edited. I'm leaving the original answer below for context (otherwise the comments wouldn't make sense).
When this question was originally asked, JSLint was the main linting tool for JavaScript. JSHint was a new fork of JSLint, but had not yet diverged much from the original.
Since then, JSLint has remained pretty much static, while JSHint has changed a great deal - it has thrown away many of JSLint's more antagonistic rules, has added a whole load of new rules, and has generally become more flexible. Also, another tool ESLint is now available, which is even more flexible and has more rule options.
In my original answer, I said that you should not force yourself to stick to JSLint's rules; as long as you understood why it was throwing a warning, you could make a judgement for yourself about whether to change the code to resolve the warning or not.
With the ultra-strict ruleset of JSLint from 2011, this was reasonable advice -- I've seen very few JavaScript codesets that could pass a JSLint test. However with the more pragmatic rules available in today's JSHint and ESLint tools, it is a much more realistic proposition to try to get your code passing through them with zero warnings.
There may still occasionally be cases where a linter will complain about something that you've done intentionally -- for example, you know that you should always use ===
but just this one time you have a good reason to use ==
. But even then, with ESLint you have the option to specify eslint-disable
around the line in question so you can still have a passing lint test with zero warnings, with the rest of your code obeying the rule. (just don't do that kind of thing too often!)
[ORIGINAL ANSWER FOLLOWS]
By all means use JSLint. But don't get hung up on the results and on fixing everything that it warns about. It will help you improve your code, and it will help you find potential bugs, but not everything that JSLint complains about turns out to be a real problem, so don't feel like you have to complete the process with zero warnings.
Pretty much any Javascript code with any significant length or complexity will produce warnings in JSLint, no matter how well written it is. If you don't believe me, try running some popular libraries like JQuery through it.
Some JSLint warnings are more valuable than others: learn which ones to watch out for, and which ones are less important. Every warning should be considered, but don't feel obliged to fix your code to clear any given warning; it's perfectly okay to look at the code and decide you're happy with it; there are times when things that JSlint doesn't like are actually the right thing to do.
Use a ArrayAdapter backed by an ArrayList. To change the data, just update the data in the list and call adapter.notifyDataSetChanged().
The 2018 ES6+ ANSWER IS:
const arr = [1, 2, 3];
arr.forEach((val, key, arr) => {
if (Object.is(arr.length - 1, key)) {
// execute last item logic
console.log(`Last callback call at index ${key} with value ${val}` );
}
});
Uninstalling crypto
and pycrypto
works on me. Then install only pycrypto
:
pip uninstall crypto
pip uninstall pycrypto
pip install pycrypto
You could use this recursive function for generate necessary T-SQL script.
CREATE FUNCTION dbo.Update_Delete_PrimaryKey
(
@TableName NVARCHAR(255),
@ColumnName NVARCHAR(255),
@OldValue NVARCHAR(MAX),
@NewValue NVARCHAR(MAX),
@Del BIT
)
RETURNS NVARCHAR
(
MAX
)
AS
BEGIN
DECLARE @fks TABLE
(
constraint_name NVARCHAR(255),
table_name NVARCHAR(255),
col NVARCHAR(255)
);
DECLARE @Sql NVARCHAR(MAX),
@EnableConstraints NVARCHAR(MAX);
SET @Sql = '';
SET @EnableConstraints = '';
INSERT INTO @fks
(
constraint_name,
table_name,
col
)
SELECT oConstraint.name constraint_name,
oParent.name table_name,
oParentCol.name col
FROM sys.foreign_key_columns sfkc
--INNER JOIN sys.foreign_keys sfk
-- ON sfk.[object_id] = sfkc.constraint_object_id
INNER JOIN sys.sysobjects oConstraint
ON sfkc.constraint_object_id = oConstraint.id
INNER JOIN sys.sysobjects oParent
ON sfkc.parent_object_id = oParent.id
INNER JOIN sys.all_columns oParentCol
ON sfkc.parent_object_id = oParentCol.object_id
AND sfkc.parent_column_id = oParentCol.column_id
INNER JOIN sys.sysobjects oReference
ON sfkc.referenced_object_id = oReference.id
INNER JOIN sys.all_columns oReferenceCol
ON sfkc.referenced_object_id = oReferenceCol.object_id
AND sfkc.referenced_column_id = oReferenceCol.column_id
WHERE oReference.name = @TableName
AND oReferenceCol.name = @ColumnName
--AND (@Del <> 1 OR sfk.delete_referential_action = 0)
--AND (@Del = 1 OR sfk.update_referential_action = 0)
IF EXISTS(
SELECT 1
FROM @fks
)
BEGIN
DECLARE @Constraint NVARCHAR(255),
@Table NVARCHAR(255),
@Col NVARCHAR(255)
DECLARE Table_Cursor CURSOR LOCAL
FOR
SELECT f.constraint_name,
f.table_name,
f.col
FROM @fks AS f
OPEN Table_Cursor FETCH NEXT FROM Table_Cursor INTO @Constraint, @Table,@Col
WHILE (@@FETCH_STATUS = 0)
BEGIN
IF @Del <> 1
BEGIN
SET @Sql = @Sql + 'ALTER TABLE ' + @Table + ' NOCHECK CONSTRAINT ' + @Constraint + CHAR(13) + CHAR(10);
SET @EnableConstraints = @EnableConstraints + 'ALTER TABLE ' + @Table + ' CHECK CONSTRAINT ' + @Constraint
+ CHAR(13) + CHAR(10);
END
SET @Sql = @Sql + dbo.Update_Delete_PrimaryKey(@Table, @Col, @OldValue, @NewValue, @Del);
FETCH NEXT FROM Table_Cursor INTO @Constraint, @Table,@Col
END
CLOSE Table_Cursor DEALLOCATE Table_Cursor
END
DECLARE @DataType NVARCHAR(30);
SELECT @DataType = t.name +
CASE
WHEN t.name IN ('char', 'varchar', 'nchar', 'nvarchar') THEN '(' +
CASE
WHEN c.max_length = -1 THEN 'MAX'
ELSE CONVERT(
VARCHAR(4),
CASE
WHEN t.name IN ('nchar', 'nvarchar') THEN c.max_length / 2
ELSE c.max_length
END
)
END + ')'
WHEN t.name IN ('decimal', 'numeric') THEN '(' + CONVERT(VARCHAR(4), c.precision) + ','
+ CONVERT(VARCHAR(4), c.Scale) + ')'
ELSE ''
END
FROM sys.columns c
INNER JOIN sys.types t
ON c.user_type_id = t.user_type_id
WHERE c.object_id = OBJECT_ID(@TableName)
AND c.name = @ColumnName
IF @Del <> 1
BEGIN
SET @Sql = @Sql + 'UPDATE [' + @TableName + '] SET [' + @ColumnName + '] = CONVERT(' + @DataType + ', ' + ISNULL('N''' + @NewValue + '''', 'NULL')
+ ') WHERE [' + @ColumnName + '] = CONVERT(' + @DataType + ', ' + ISNULL('N''' + @OldValue + '''', 'NULL') +
');' + CHAR(13) + CHAR(10);
SET @Sql = @Sql + @EnableConstraints;
END
ELSE
SET @Sql = @Sql + 'DELETE [' + @TableName + '] WHERE [' + @ColumnName + '] = CONVERT(' + @DataType + ', N''' + @OldValue
+ ''');' + CHAR(13) + CHAR(10);
RETURN @Sql;
END
GO
DECLARE @Result NVARCHAR(MAX);
SET @Result = dbo.Update_Delete_PrimaryKey('@TableName', '@ColumnName', '@OldValue', '@NewValue', 0);/*Update*/
EXEC (@Result)
SET @Result = dbo.Update_Delete_PrimaryKey('@TableName', '@ColumnName', '@OldValue', NULL, 1);/*Delete*/
EXEC (@Result)
GO
DROP FUNCTION Update_Delete_PrimaryKey;
Try to create an javax.mail.Authenticator Object, and send that in with the properties object to the Session object.
Authenticator edit:
You can modify this to accept a username and password and you can store them there, or where ever you want.
public class SmtpAuthenticator extends Authenticator {
public SmtpAuthenticator() {
super();
}
@Override
public PasswordAuthentication getPasswordAuthentication() {
String username = "user";
String password = "password";
if ((username != null) && (username.length() > 0) && (password != null)
&& (password.length () > 0)) {
return new PasswordAuthentication(username, password);
}
return null;
}
In your class where you send the email:
SmtpAuthenticator authentication = new SmtpAuthenticator();
javax.mail.Message msg = new MimeMessage(Session
.getDefaultInstance(emailProperties, authenticator));
From the documentation:
It is necessary to keep in mind that the browsers do not know how to correctly show this error.
I suspect this is what's happening, if you inspect the HTTP to-and-fro using tools such as Firebug or Live HTTP Headers (both Firefox extensions) you'll be able to see what's really going on.
You can use a MinMaxPriorityQueue from Google Guava, from the javadoc:
A min-max priority queue can be configured with a maximum size. If so, each time the size of the queue exceeds that value, the queue automatically removes its greatest element according to its comparator (which might be the element that was just added). This is different from conventional bounded queues, which either block or reject new elements when full.
DateTime dt = DateTime.ParseExact(yourObject.ToString(), "MM/dd/yyyy hh:mm:ss tt", CultureInfo.InvariantCulture);
string s = dt.ToString("dd/M/yyyy", CultureInfo.InvariantCulture);
I found the answer that remedied my frustrations regarding this on John Catterfeld's blog.
... Chrome (v20-30) implements almost all styles but with a major caveat – the placeholder styles do no resize the input box, so stay clear of things like line-height and padding top or bottom.
If you are using line-height or padding you are going to be frustrated with the resulting placeholder. I haven't found a way around that up to this point.
Assuming you have referenced and correctly integrated your font to your site (presumably using an @font-face kit) it should be alright to just reference yours the way you do. Presumably it is like this so they have fall backs incase some browsers do not render the fonts correctly
The BasicThreadFactory
from apache commons-lang is also useful to provide the naming behavior. Instead of writing an anonymous inner class, you can use the Builder to name the threads as you want. Here's the example from the javadocs:
// Create a factory that produces daemon threads with a naming pattern and
// a priority
BasicThreadFactory factory = new BasicThreadFactory.Builder()
.namingPattern("workerthread-%d")
.daemon(true)
.priority(Thread.MAX_PRIORITY)
.build();
// Create an executor service for single-threaded execution
ExecutorService exec = Executors.newSingleThreadExecutor(factory);
You can do
$('.page-address-edit').addClass('test1 test2');
More here:
More than one class may be added at a time, separated by a space, to the set of matched elements, like so:
$("p").addClass("myClass yourClass");
If you are not limiting yourself to the standard library, I like psutil for this.
For instance to find all "python" processes:
>>> import psutil
>>> [p.info for p in psutil.process_iter(attrs=['pid', 'name']) if 'python' in p.info['name']]
[{'name': 'python3', 'pid': 21947},
{'name': 'python', 'pid': 23835}]
All the 3 first ways are identical. You have make sure that if t
is a matrix you add .
before using multiplication or the power.
for matrix:
t= [1 2 3;2 3 4;3 4 5];
tp=t.*t;
x=exp(-(t.^2));
y=exp(-(t.*t));
z=exp(-(tp));
gives the results:
x =
0.3679 0.0183 0.0001
0.0183 0.0001 0.0000
0.0001 0.0000 0.0000
y =
0.3679 0.0183 0.0001
0.0183 0.0001 0.0000
0.0001 0.0000 0.0000
z=
0.3679 0.0183 0.0001
0.0183 0.0001 0.0000
0.0001 0.0000 0.0000
And using a scalar:
p=3;
pp=p^2;
x=exp(-(p^2));
y=exp(-(p*p));
z=exp(-pp);
gives the results:
x =
1.2341e-004
y =
1.2341e-004
z =
1.2341e-004
In the past, there was something like: https: //jstl.dev.java.net/download.html. But since a few days, there is something happening on dev.java.net.
Java.net will be modified, read this: http: //www.java.net/. So I think we have to wait. I also found: http: //java.net/projects/help/pages/RequestedProjects.
Maybe this is helpful.
Another option is to look into the maven repository: http://repo1.maven.org/maven2/javax/servlet/
How about FK_TABLENAME_COLUMNNAME
?
Keep It Simple Stupid whenever possible.
Add this to your ~/.vimrc
and you will only have to press F2 before and after pasting:
set pastetoggle=<F2>
You are comparing strings. If an arguments are omitted, %1
expands to a blank so the commands become IF =="-b" GOTO SPECIFIC
for example (which is a syntax error). Wrap your strings in quotes (or square brackets).
REM this is ok
IF [%1]==[/?] GOTO BLANK
REM I'd recommend using quotes exclusively
IF "%1"=="-b" GOTO SPECIFIC
IF NOT "%1"=="-b" GOTO UNKNOWN
According to the RFC that introduced the operator, $a <=> $b
evaluates to:
$a == $b
$a < $b
$a > $b
which seems to be the case in practice in every scenario I've tried, although strictly the official docs only offer the slightly weaker guarantee that $a <=> $b
will return
an integer less than, equal to, or greater than zero when
$a
is respectively less than, equal to, or greater than$b
Regardless, why would you want such an operator? Again, the RFC addresses this - it's pretty much entirely to make it more convenient to write comparison functions for usort
(and the similar uasort
and uksort
).
usort
takes an array to sort as its first argument, and a user-defined comparison function as its second argument. It uses that comparison function to determine which of a pair of elements from the array is greater. The comparison function needs to return:
an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.
The spaceship operator makes this succinct and convenient:
$things = [
[
'foo' => 5.5,
'bar' => 'abc'
],
[
'foo' => 7.7,
'bar' => 'xyz'
],
[
'foo' => 2.2,
'bar' => 'efg'
]
];
// Sort $things by 'foo' property, ascending
usort($things, function ($a, $b) {
return $a['foo'] <=> $b['foo'];
});
// Sort $things by 'bar' property, descending
usort($things, function ($a, $b) {
return $b['bar'] <=> $a['bar'];
});
More examples of comparison functions written using the spaceship operator can be found in the Usefulness section of the RFC.
You can also use T-Regx library which has automatic delimiters for you:
$matches = pattern("My name is '(.*)' and im fine")->match($string1)->all();
// ? No delimiters needed
Just as a reference, here is an example of how to convert between String
and char[]
with a dynamic length -
// Define
String str = "This is my string";
// Length (with one extra character for the null terminator)
int str_len = str.length() + 1;
// Prepare the character array (the buffer)
char char_array[str_len];
// Copy it over
str.toCharArray(char_array, str_len);
Yes, this is painfully obtuse for something as simple as a type conversion, but sadly it's the easiest way.
Maybe someone finds this useful when working with React/Node/Axios. I used this for my Cloudinary image upload feature with react-dropzone
on the UI.
axios({
method: 'get',
url: file[0].preview, // blob url eg. blob:http://127.0.0.1:8000/e89c5d87-a634-4540-974c-30dc476825cc
responseType: 'blob'
}).then(function(response){
var reader = new FileReader();
reader.readAsDataURL(response.data);
reader.onloadend = function() {
var base64data = reader.result;
self.props.onMainImageDrop(base64data)
}
})
JavaScript:
document.getElementsByTagName('head')[0].appendChild( ... );
Make DOM element like so:
link=document.createElement('link');
link.href='href';
link.rel='rel';
document.getElementsByTagName('head')[0].appendChild(link);
I would say that when you have a language like Lisp with its support for macros, then you can build you own domain-specific abstractions, abstractions which often are much better than the general idiom solutions.
Consider also .attr()
$("#roommate_but").attr("disabled", true);
worked for me.
Actually, neither statement says anything about heap or stack. The code
Object o;
creates one of the following, depending on its context:
This means that the storage location is determined by the context in which the object is defined. In addition, the C++ standard does not talk about stack vs heap storage. Instead, it talks about storage duration, which can be either automatic, dynamic, static or thread-local. However, most implementations implement automatic storage via the call stack, and dynamic storage via the heap.
Local variables, which have automatic storage, are thus created on the stack. Static (and thread-local) objects are generally allocated in their own memory regions, neither on the stack nor on the heap. And member variables are allocated wherever the object they belong to is allocated. They have their containing object’s storage duration.
To illustrate this with an example:
struct Foo {
Object o;
};
Foo foo;
int main() {
Foo f;
Foo* p = new Foo;
Foo* pf = &f;
}
Now where is the object Foo::o
(that is, the subobject o
of an object of class Foo
) created? It depends:
foo.o
has static storage because foo
has static storage, and therefore lives neither on the stack nor on the heap.f.o
has automatic storage since f
has automatic storage (= it lives on the stack).p->o
has dynamic storage since *p
has dynamic storage (= it lives on the heap).pf->o
is the same object as f.o
because pf
points to f
.In fact, both p
and pf
in the above have automatic storage. A pointer’s storage is indistinguishable from any other object’s, it is determined by context. Furthermore, the initialising expression has no effect on the pointer storage.
The pointee (= what the pointer points to) is a completely different matter, and could refer to any kind of storage: *p
is dynamic, whereas *pf
is automatic.
You can access the delegate like this:
MainClass *appDelegate = (MainClass *)[[UIApplication sharedApplication] delegate];
Replace MainClass with the name of your application class.
Then, provided you have a property for the other view controller, you can call something like:
[appDelegate.viewController someMethod];
I used a few of them and my favorite is,
http://code.google.com/p/json-simple/
The library is very small so it's perfect for J2ME.
You can parse JSON into Java object in one line like this,
JSONObject json = (JSONObject)new JSONParser().parse("{\"name\":\"MyNode\", \"width\":200, \"height\":100}");
System.out.println("name=" + json.get("name"));
System.out.println("width=" + json.get("width"));
The h1:first-child
selector means
Select the first child of its parent
if and only if it's anh1
element.
The :first-child
of the container here is the ul
, and as such cannot satisfy h1:first-child
.
There is CSS3's :first-of-type
for your case:
.detail_container h1:first-of-type
{
color: blue;
}
But with browser compatibility woes and whatnot, you're better off giving the first h1
a class, then targeting that class:
.detail_container h1.first
{
color: blue;
}
I really like explanation by Jeremy west.... another approach which is really easy for understanding is given here http://courses.washington.edu/css343/zander/NotesProbs/heapcomplexity
since, buildheap depends using depends on heapify and shiftdown approach is used which depends upon sum of the heights of all nodes. So, to find the sum of height of nodes which is given by S = summation from i = 0 to i = h of (2^i*(h-i)), where h = logn is height of the tree solving s, we get s = 2^(h+1) - 1 - (h+1) since, n = 2^(h+1) - 1 s = n - h - 1 = n- logn - 1 s = O(n), and so complexity of buildheap is O(n).
rand(1000, 9999);
works more faster than x4 times rand(0,9);
benchmark:
rand(1000, 9999) : 0.147 sec.
rand(0,9)x4 times : 0.547 sec.
both functions was running in 100000 iterations to make results more explicit
This is a MySQL-specific answer, not sure where else it works --
You can create an empty table having the same column definitions with:
CREATE TEMPORARY TABLE temp_foo LIKE foo;
And you can create a populated copy of an existing table with:
CREATE TEMPORARY TABLE temp_foo SELECT * FROM foo;
And the following works in postgres; unfortunately the different RDBMS's don't seem very consistent here:
CREATE TEMPORARY TABLE temp_foo AS SELECT * FROM foo;
Jon, you have some syntax errors, see below, this worked for me.
<script type="text/javascript">
$(document).ready(function () {
$.validator.addMethod(
"australianDate",
function (value, element) {
// put your own logic here, this is just a (crappy) example
return value.match(/^\d\d?\/\d\d?\/\d\d\d\d$/);
},
"Please enter a date in the format dd/mm/yyyy"
);
$('#testForm').validate({
rules: {
"myDate": {
australianDate: true
}
}
});
});
The MSDN documentation for environment variables tells you what to do:
To programmatically add or modify system environment variables, add them to the HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment registry key, then broadcast a WM_SETTINGCHANGE message with lParam set to the string "Environment". This allows applications, such as the shell, to pick up your updates.
You will of course need admin rights to do this. I know of no way to broadcast a windows message from Windows batch so you'll need to write a small program to do this.
MySQL 5.7 Now supports a native JSON data type similar to MongoDB and other schemaless document data stores:
JSON support
Beginning with MySQL 5.7.8, MySQL supports a native JSON type. JSON values are not stored as strings, instead using an internal binary format that permits quick read access to document elements. JSON documents stored in JSON columns are automatically validated whenever they are inserted or updated, with an invalid document producing an error. JSON documents are normalized on creation, and can be compared using most comparison operators such as =, <, <=, >, >=, <>, !=, and <=>; for information about supported operators as well as precedence and other rules that MySQL follows when comparing JSON values, see Comparison and Ordering of JSON Values.
MySQL 5.7.8 also introduces a number of functions for working with JSON values. These functions include those listed here:
- Functions that create JSON values: JSON_ARRAY(), JSON_MERGE(), and JSON_OBJECT(). See Section 12.16.2, “Functions That Create JSON Values”.
- Functions that search JSON values: JSON_CONTAINS(), JSON_CONTAINS_PATH(), JSON_EXTRACT(), JSON_KEYS(), and JSON_SEARCH(). See Section 12.16.3, “Functions That Search JSON Values”.
- Functions that modify JSON values: JSON_APPEND(), JSON_ARRAY_APPEND(), JSON_ARRAY_INSERT(), JSON_INSERT(), JSON_QUOTE(), JSON_REMOVE(), JSON_REPLACE(), JSON_SET(), and JSON_UNQUOTE(). See Section 12.16.4, “Functions That Modify JSON Values”.
- Functions that provide information about JSON values: JSON_DEPTH(), JSON_LENGTH(), JSON_TYPE(), and JSON_VALID(). See Section 12.16.5, “Functions That Return JSON Value Attributes”.
In MySQL 5.7.9 and later, you can use column->path as shorthand for JSON_EXTRACT(column, path). This works as an alias for a column wherever a column identifier can occur in an SQL statement, including WHERE, ORDER BY, and GROUP BY clauses. This includes SELECT, UPDATE, DELETE, CREATE TABLE, and other SQL statements. The left hand side must be a JSON column identifier (and not an alias). The right hand side is a quoted JSON path expression which is evaluated against the JSON document returned as the column value.
See Section 12.16.3, “Functions That Search JSON Values”, for more information about -> and JSON_EXTRACT(). For information about JSON path support in MySQL 5.7, see Searching and Modifying JSON Values. See also Secondary Indexes and Virtual Generated Columns.
More info:
The X-Frame-Options is defined in the Http Header and not in the <head>
section of the page you want to use in the iframe.
Accepted values are: DENY, SAMEORIGIN and ALLOW-FROM "url"
Add -lm to your link options, since pow() and floor() are part of the math library:
gcc fib.c -o fibo -lm
Array's has
array.length
whereas List has
list.size()
Replace array.size()
to array.length
Here is a sample code
strFileName = "c:\test.xls"
Set objExcel = CreateObject("Excel.Application")
objExcel.Visible = True
Set objWorkbook = objExcel.Workbooks.Add()
objWorkbook.SaveAs(strFileName)
objExcel.Quit
In JAVA 8 its much easy now.
List<String> alphaNumbers = Arrays.asList("one", "two", "three", "four");
List<String> alphaNumbersUpperCase = alphaNumbers.stream()
.map(String::toUpperCase)
.sorted()
.collect(Collectors.toList());
System.out.println(alphaNumbersUpperCase); // [FOUR, ONE, THREE, TWO]
-- For reverse use this
.sorted(Comparator.reverseOrder())
You can try this.. clean solution
Files.move(source, target, REPLACE_EXISTING);
First go to the pip documentation if not install before: http://pip.readthedocs.org/en/stable/installing/
and follow the install pip which is first download get-pip.py from https://bootstrap.pypa.io/get-pip.py
Then run the following (which may require administrator access): python get-pip.py
I have just found a really good example of how to do this here: http://developer.android.com/reference/android/webkit/WebView.html . You just need to change the setprogress from:
activity.setProgress(progress * 1000);
to
activity.setProgress(progress * 100);
it seams that your ending quote comes too early. It should be after the last parameter.
This trick worked for me.
I noticed something interesting: when I start my application using the following command line:
java -Dcom.sun.management.jmxremote.port=9999
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false
If I try to connect to this port from a remote machine using jconsole, the TCP connection succeeds, some data is exchanged between remote jconsole and local jmx agent where my MBean is deployed, and then, jconsole displays a connect error message. I performed a wireshark capture, and it shows data exchange coming from both agent and jconsole.
Thus, this is not a network issue, if I perform a netstat -an with or without java.rmi.server.hostname system property, I have the following bindings:
TCP 0.0.0.0:9999 0.0.0.0:0 LISTENING
TCP [::]:9999 [::]:0 LISTENING
It means that in both cases the socket created on port 9999 accepts connections from any host on any address.
I think the content of this system property is used somewhere at connection and compared with the actual IP address used by agent to communicate with jconsole. And if those address do not match, connection fails.
I did not have this problem while connecting from the same host using jconsole, only from real physical remote hosts. So, I suppose that this check is done only when connection is coming from the "outside".
aggfunc=pd.Series.nunique
will only count unique values for a series - in this case count the unique values for a column. But this doesn't quite reflect as an alternative to aggfunc='count'
For simple counting, it better to use aggfunc=pd.Series.count
The "iterable interface" in python consists of two methods __next__()
and __iter__()
. The __next__
function is the most important, as it defines the iterator behavior - that is, the function determines what value should be returned next. The __iter__()
method is used to reset the starting point of the iteration. Often, you will find that __iter__()
can just return self when __init__()
is used to set the starting point.
See the following code for defining a Class Reverse which implements the "iterable interface" and defines an iterator over any instance from any sequence class. The __next__()
method starts at the end of the sequence and returns values in reverse order of the sequence. Note that instances from a class implementing the "sequence interface" must define a __len__()
and a __getitem__()
method.
class Reverse:
"""Iterator for looping over a sequence backwards."""
def __init__(self, seq):
self.data = seq
self.index = len(seq)
def __iter__(self):
return self
def __next__(self):
if self.index == 0:
raise StopIteration
self.index = self.index - 1
return self.data[self.index]
>>> rev = Reverse('spam')
>>> next(rev) # note no need to call iter()
'm'
>>> nums = Reverse(range(1,10))
>>> next(nums)
9
For a new repository, the method works for me:
Remote the files related with git
rm -rf .git
Do the commit again
git add . && git commit -m "your commit"
Add the git URL and try to push again
git remote add origin <your git URL>
And then try to push again
git push -u origin master -f
Success!
Since it's a new repository, so it doesn't matter for me to remove the git and add it again.
None of the above worked for me. I spent too much time clearing other errors that came up. I found this to be the easiest and the best way.
This works for getting JavaFx on Jdk 11, 12 & on OpenJdk12 too!
module thisIsTheNameOfYourProject {
requires javafx.fxml;
requires javafx.controls;
requires javafx.graphics;
opens sample;
}
The entire thing took me only 5mins !!!
I prefer option 4, but it makes intuitive sense to me because I do far too much work in Grails, Groovy, and JavaFX. "Magic" connections between the view and the controller are common in all. It is important to name the method well:
In the view,add the onClick method to the button or other widget:
android:clickable="true"
android:onClick="onButtonClickCancel"
Then in the class, handle the method:
public void onButtonClickCancel(View view) {
Toast.makeText(this, "Cancel pressed", Toast.LENGTH_LONG).show();
}
Again, name the method clearly, something you should do anyway, and the maintenance becomes second-nature.
One big advantage is that you can write unit tests now for the method. Option 1 can do this, but 2 and 3 are more difficult.
for(var key in substr)
{
// do something with substr[key];
}
In my Firefox this trick works:
function SetPixel(canvas, x, y)
{
canvas.beginPath();
canvas.moveTo(x, y);
canvas.lineTo(x+0.4, y+0.4);
canvas.stroke();
}
Small offset is not visible on screen, but forces rendering engine to actually draw a point.
This is a very broad question, so I am going to give a broad answer.
That is all that I can tell from the above screenshot. However, if I were to speculate, you probably have an IO subsystem that is too slow to keep up with the demand. This could be caused by missing indexes or an actually too slow disk. Keep in mind, that 15000 reads for a single OLTP query is slightly high but not uncommon.
Just to help if anyone stumble on this question like me, if you want to use if in PostgreSQL, you use "CASE"
select
case
when stage = 1 then 'running'
when stage = 2 then 'done'
when stage = 3 then 'stopped'
else
'not running'
end as run_status from processes
Here is one possible solution to solve the problem without a library :
public static boolean delete(File file) {
File[] flist = null;
if(file == null){
return false;
}
if (file.isFile()) {
return file.delete();
}
if (!file.isDirectory()) {
return false;
}
flist = file.listFiles();
if (flist != null && flist.length > 0) {
for (File f : flist) {
if (!delete(f)) {
return false;
}
}
}
return file.delete();
}
I had this error because i selected theme as Material theme. But as i was trying to run app on 4.4.2 it gave this error.
Solution : Select Theme_holo as theme
The issue you're encountering is that even though the method emptyList()
returns List<T>
, you haven't provided it with the type, so it defaults to returning List<Object>
. You can supply the type parameter, and have your code behave as expected, like this:
public Person(String name) {
this(name,Collections.<String>emptyList());
}
Now when you're doing straight assignment, the compiler can figure out the generic type parameters for you. It's called type inference. For example, if you did this:
public Person(String name) {
List<String> emptyList = Collections.emptyList();
this(name, emptyList);
}
then the emptyList()
call would correctly return a List<String>
.
In case you want to produce a Java-8 stream of batches, you can try the following code:
public static <T> Stream<List<T>> batches(List<T> source, int length) {
if (length <= 0)
throw new IllegalArgumentException("length = " + length);
int size = source.size();
if (size <= 0)
return Stream.empty();
int fullChunks = (size - 1) / length;
return IntStream.range(0, fullChunks + 1).mapToObj(
n -> source.subList(n * length, n == fullChunks ? size : (n + 1) * length));
}
public static void main(String[] args) {
List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14);
System.out.println("By 3:");
batches(list, 3).forEach(System.out::println);
System.out.println("By 4:");
batches(list, 4).forEach(System.out::println);
}
Output:
By 3:
[1, 2, 3]
[4, 5, 6]
[7, 8, 9]
[10, 11, 12]
[13, 14]
By 4:
[1, 2, 3, 4]
[5, 6, 7, 8]
[9, 10, 11, 12]
[13, 14]
The read_sql
docs say this params
argument can be a list, tuple or dict (see docs).
To pass the values in the sql query, there are different syntaxes possible: ?
, :1
, :name
, %s
, %(name)s
(see PEP249).
But not all of these possibilities are supported by all database drivers, which syntax is supported depends on the driver you are using (psycopg2
in your case I suppose).
In your second case, when using a dict, you are using 'named arguments', and according to the psycopg2
documentation, they support the %(name)s
style (and so not the :name
I suppose), see http://initd.org/psycopg/docs/usage.html#query-parameters.
So using that style should work:
df = psql.read_sql(('select "Timestamp","Value" from "MyTable" '
'where "Timestamp" BETWEEN %(dstart)s AND %(dfinish)s'),
db,params={"dstart":datetime(2014,6,24,16,0),"dfinish":datetime(2014,6,24,17,0)},
index_col=['Timestamp'])
log4j.rootLogger=OFF
EDIT: Since Maven 3.5.0 there is a nice solution for this using ${revision}
placeholder. See FrVaBe's answer for details. For previous Maven versions see my original answer below.
No, there isn't. You always have to specify parent's version. Fortunately, it is inherited as the module's version what is desirable in most cases. Moreover, this parent's version declaration is bumped automatically by Maven Release Plugin, so - in fact - it's not a problem that you have version in 2 places as long as you use Maven Release Plugin for releasing or just bumping versions.
Notice that there are some cases when this behaviour is actually pretty OK and gives more flexibility you may need. Sometimes you want to use some of previous parent's version to inherit, however that's not a mainstream case.
str_replace('"', "", $string);
str_replace("'", "", $string);
I assume you mean quotation marks?
Otherwise, go for some regex, this will work for html quotes for example:
preg_replace("/<!--.*?-->/", "", $string);
C-style quotes:
preg_replace("/\/\/.*?\n/", "\n", $string);
CSS-style quotes:
preg_replace("/\/*.*?\*\//", "", $string);
bash-style quotes:
preg-replace("/#.*?\n/", "\n", $string);
Etc etc...
If you are restrained from having the files in your directory, you can run this code in a script file from the Host machine.
#!/bin/sh
OPTIONS=`vagrant ssh-config | awk -v ORS=' ' '{print "-o " $1 "=" $2}'`
scp ${OPTIONS} /File/To/Copy vagrant@YourServer:/Where/To/Put/File
In this setup, you only need to change /File/To/Copy
to the file or files you want to copy and then /Where/To/Put/File
is the location on the VM you wish to have the files copied to.
If you create this file and call it copyToServer.sh
you can then run the sh
command to push those files.
sh ./copyToServer.sh
As a final note, you cannot run this code as a provisioner
because that runs on the Guest server, while this code runs from the Host.
In real world or project we have requirement in advance and needs to create variable and methods inside the class , On the basis of requirement we needs to decide whether we needs to create
=>2. Static Keyword we will used with variable which going to same for particular class throughout for all objects, e.g in selenium : we decalre webDriver as static=> so we do not need to create webdriver again and again for every test case= Static Webdriver driver(but parallel execution it will cause problem but thats another case); then, Real world scenario=>If India is class then, flag, money would be same every indian so we might take as static. Anatoher example: utility method we always declare as static b'cos it will be used in different test cases. Static stored in CMA( PreGen space)=PreGen (Fixed memory)changed to Metaspace after Java8 as now its growing dynamically
I had this problem, but only in Visual Studio Code, not in ISE. Turns out I was using an x86 session in VSCode. I displayed the PowerShell Session Menu and switched to the x64 session, and all the modules began working without full paths. I am using Version 1.17.2, architecture x64 of VSCode. My modules were stored in the C:\Windows\System32\WindowsPowerShell\v1.0\Modules directory.
For example:
String myInput = null;
Scanner myscan = new Scanner(System.in).useDelimiter("\\n");
System.out.println("Enter your input: ");
myInput = myscan.next();
System.out.println(myInput);
This will let you use Enter as a delimiter.
Thus, if you input:
Hello world (ENTER)
it will print 'Hello World'.
Just in case someone stumbles upon this like I did and doesn't realise, the two variations above are for different use cases.
The following:
.blue-border, .background {
border: 1px solid #00f;
background: #fff;
}
is for when you want to add styles to elements that have either the blue-border or background class, for example:
<div class="blue-border">Hello</div>
<div class="background">World</div>
<div class="blue-border background">!</div>
would all get a blue border and white background applied to them.
However, the accepted answer is different.
.blue-border.background {
border: 1px solid #00f;
background: #fff;
}
This applies the styles to elements that have both classes so in this example only the <div>
with both classes should get the styles applied (in browsers that interpret the CSS properly):
<div class="blue-border">Hello</div>
<div class="background">World</div>
<div class="blue-border background">!</div>
So basically think of it like this, comma separating applies to elements with one class OR another class and dot separating applies to elements with one class AND another class.
After searching a bit about the method to open the existing sheet in xlxs, i discovered
existingWorksheet = wb.get_worksheet_by_name('Your Worksheet name goes here...')
existingWorksheet.write_row(0,0,'xyz')
You can now append/write any data to the open worksheet. I hope it helps. Thanks
Simply make a div to be the direct child of body (with the class name bg for example), encompassing all other elements in the body, and add this to the CSS file:
.bg {
background-image: url('_images/home.jpg');//Put your appropriate image URL here
background-size: 100% 100%; //You need to put 100% twice here to stretch width and height
}
Refer to this link: https://www.w3schools.com/css/css_rwd_images.asp Scroll down to the part that says:
- If the background-size property is set to "100% 100%", the background image will stretch to cover the entire content area
There it shows the 'img_flowers.jpg' stretching to the size of the screen or browser regardless of how you resize it.
When I have a Store Procedure name, and do not know which database it belongs to, I use the following -
Use [master]
GO
DECLARE @dbname VARCHAR(50)
DECLARE @statement NVARCHAR(max)
DECLARE db_cursor CURSOR
LOCAL FAST_FORWARD
FOR
--Status 48 (mirrored db)
SELECT name FROM MASTER.dbo.sysdatabases WHERE STATUS NOT LIKE 48 AND name NOT IN ('master','model','msdb','tempdb','distribution')
OPEN db_cursor
FETCH NEXT FROM db_cursor INTO @dbname
WHILE @@FETCH_STATUS = 0
BEGIN
SELECT @statement = 'SELECT * FROM ['+@dbname+'].INFORMATION_SCHEMA.ROUTINES WHERE [ROUTINE_NAME] LIKE ''%name_of_proc%'''+';'
print @statement
EXEC sp_executesql @statement
FETCH NEXT FROM db_cursor INTO @dbname
END
CLOSE db_cursor
DEALLOCATE db_cursor
If you want the old directive back, you can add this to your app:
Directive:
directives.directive('ngBindHtmlUnsafe', ['$sce', function($sce){
return {
scope: {
ngBindHtmlUnsafe: '=',
},
template: "<div ng-bind-html='trustedHtml'></div>",
link: function($scope, iElm, iAttrs, controller) {
$scope.updateView = function() {
$scope.trustedHtml = $sce.trustAsHtml($scope.ngBindHtmlUnsafe);
}
$scope.$watch('ngBindHtmlUnsafe', function(newVal, oldVal) {
$scope.updateView(newVal);
});
}
};
}]);
Usage
<div ng-bind-html-unsafe="group.description"></div>
There are already very good answers here, but in some other cases (not this in particular) using map could be the "only" solution.
Specially when we want to use regexps, other than the standard ones.
For this case it would look like this:
$('.myClass').filter(function(index, elem) {
var jElem = $(elem);
return jElem.closest('#Create').length > 0 ||
jElem.closest('#Edit').length > 0;
}).plugin(...);
As I said before, here this solution could be useless, but for further problems, is a very good option
Not tested, but something like this:
var now = new Date();
var str = now.getUTCFullYear().toString() + "/" +
(now.getUTCMonth() + 1).toString() +
"/" + now.getUTCDate() + " " + now.getUTCHours() +
":" + now.getUTCMinutes() + ":" + now.getUTCSeconds();
Of course, you'll need to pad the hours, minutes, and seconds to two digits or you'll sometimes get weird looking times like "2011/12/2 19:2:8."
Try to add the following configuration for surefire plugin in your pom.xml of root project:
<project>
[...]
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<testFailureIgnore>true</testFailureIgnore>
</configuration>
</plugin>
</plugins>
</build>
[...]
</project>
After trying Vaclav's and Alex's answer, I still had to disable "Show friendly HTTP error messages" in IE
You'll probably want to try textContent
instead of innerHTML
.
Given innerHTML
will return DOM content as a String
and not exclusively the "text" in the div
. It's fine if you know that your div
contains only text but not suitable if every use case. For those cases, you'll probably have to use textContent
instead of innerHTML
For example, considering the following markup:
<div id="test">
Some <span class="foo">sample</span> text.
</div>
You'll get the following result:
var node = document.getElementById('test'),
htmlContent = node.innerHTML,
// htmlContent = "Some <span class="foo">sample</span> text."
textContent = node.textContent;
// textContent = "Some sample text."
See MDN for more details:
I changed the DrawerLayout a bit to get the events and be able to consume and event, such as if you want to use the actionToggle as back if you are in detail view:
public class ListenableDrawerLayout extends DrawerLayout {
private OnToggleButtonClickedListener mOnToggleButtonClickedListener;
private boolean mManualCall;
public ListenableDrawerLayout(Context context) {
super(context);
}
public ListenableDrawerLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ListenableDrawerLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
/**
* Sets the listener for the toggle button
*
* @param mOnToggleButtonClickedListener
*/
public void setOnToggleButtonClickedListener(OnToggleButtonClickedListener mOnToggleButtonClickedListener) {
this.mOnToggleButtonClickedListener = mOnToggleButtonClickedListener;
}
/**
* Opens the navigation drawer manually from code<br>
* <b>NOTE: </b>Use this function instead of the normal openDrawer method
*
* @param drawerView
*/
public void openDrawerManual(View drawerView) {
mManualCall = true;
openDrawer(drawerView);
}
/**
* Closes the navigation drawer manually from code<br>
* <b>NOTE: </b>Use this function instead of the normal closeDrawer method
*
* @param drawerView
*/
public void closeDrawerManual(View drawerView) {
mManualCall = true;
closeDrawer(drawerView);
}
@Override
public void openDrawer(View drawerView) {
// Check for listener and for not manual open
if (!mManualCall && mOnToggleButtonClickedListener != null) {
// Notify the listener and behave on its reaction
if (mOnToggleButtonClickedListener.toggleOpenDrawer()) {
return;
}
}
// Manual call done
mManualCall = false;
// Let the drawer layout to its stuff
super.openDrawer(drawerView);
}
@Override
public void closeDrawer(View drawerView) {
// Check for listener and for not manual close
if (!mManualCall && mOnToggleButtonClickedListener != null) {
// Notify the listener and behave on its reaction
if (mOnToggleButtonClickedListener.toggleCloseDrawer()) {
return;
}
}
// Manual call done
mManualCall = false;
// Let the drawer layout to its stuff
super.closeDrawer(drawerView);
}
/**
* Interface for toggle button callbacks
*/
public static interface OnToggleButtonClickedListener {
/**
* The ActionBarDrawerToggle has been pressed in order to open the drawer
*
* @return true if we want to consume the event, false if we want the normal behaviour
*/
public boolean toggleOpenDrawer();
/**
* The ActionBarDrawerToggle has been pressed in order to close the drawer
*
* @return true if we want to consume the event, false if we want the normal behaviour
*/
public boolean toggleCloseDrawer();
}
}
You don't need to delete objects in java. When there is no reference to an object, it will be collected by the garbage collector automatically.
GetUserId()
is an extension method on IIdentity
and it is in Microsoft.AspNet.Identity.IdentityExtensions
. Make sure you have added the namespace with using Microsoft.AspNet.Identity;
.
You can create a function:
function changeInputType(oldObj, oTyp, nValue) {
var newObject = document.createElement('input');
newObject.type = oTyp;
if(oldObj.size) newObject.size = oldObj.size;
if(oldObj.value) newObject.value = nValue;
if(oldObj.name) newObject.name = oldObj.name;
if(oldObj.id) newObject.id = oldObj.id;
if(oldObj.className) newObject.className = oldObj.className;
oldObj.parentNode.replaceChild(newObject,oldObj);
return newObject;
}
And you do a call like:
changeInputType(document.getElementById('DATE_RANGE_VALUE'), 'checkbox', 7);
Floats, by nature, are imprecise and always have neat rounding "issues". If precision is important then you might consider refactoring your application to use Decimal or BigDecimal.
Yes, floats are computationally faster than decimals because of the on processor support. However, do you want fast or accurate?
In your code you are querying for the payment
element in default namespace, but in the XML response it is declared as in http://apilistener.envoyservices.com
namespace.
So, you are missing a namespace declaration:
$xml->registerXPathNamespace('envoy', 'http://apilistener.envoyservices.com');
Now you can use the envoy
namespace prefix in your xpath query:
xpath('//envoy:payment')
The full code would be:
$xml = simplexml_load_string($soap_response);
$xml->registerXPathNamespace('envoy', 'http://apilistener.envoyservices.com');
foreach ($xml->xpath('//envoy:payment') as $item)
{
print_r($item);
}
Note: I removed the soap
namespace declaration as you do not seem to be using it (it is only useful if you would use the namespace prefix in you xpath queries).
You should \usepackage{longtable}
.
I think in the question and in some of the answers there is a bit of confusion about the meaning of this pseudocode in DOS: IF A IF B X ELSE Y. It does not mean IF(A and B) THEN X ELSE Y, but in fact means IF A( IF B THEN X ELSE Y). If the test of A fails, then he whole of the inner if-else will be ignored.
As one of the answers mentioned, in this case only one of the tests can succeed so the 'else' is not needed, but of course that only works in this example, it isn't a general solution for doing if-else.
There are lots of ways around this. Here is a few ideas, all are quite ugly but hey, this is (or at least was) DOS!
@echo off
set one=1
set two=2
REM Example 1
IF %one%_%two%==1_1 (
echo Example 1 fails
) ELSE IF %one%_%two%==1_2 (
echo Example 1 works correctly
) ELSE (
echo Example 1 fails
)
REM Example 2
set test1result=0
set test2result=0
if %one%==1 if %two%==1 set test1result=1
if %one%==1 if %two%==2 set test2result=1
IF %test1result%==1 (
echo Example 2 fails
) ELSE IF %test2result%==1 (
echo Example 2 works correctly
) ELSE (
echo Example 2 fails
)
REM Example 3
if %one%==1 if %two%==1 (
echo Example 3 fails
goto :endoftests
)
if %one%==1 if %two%==2 (
echo Example 3 works correctly
goto :endoftests
)
echo Example 3 fails
)
:endoftests
A ListView
let you define a set of views
for it and gives you a native way (WPF
binding
support) to control the display of ListView
by using defined views
.
Example:
XAML
<ListView ItemsSource="{Binding list}" Name="listv" MouseEnter="listv_MouseEnter" MouseLeave="listv_MouseLeave">
<ListView.Resources>
<GridView x:Key="one">
<GridViewColumn Header="ID" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding id}" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Header="Name" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding name}" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
<GridView x:Key="two">
<GridViewColumn Header="Name" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding name}" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.Resources>
<ListView.Style>
<Style TargetType="ListView">
<Style.Triggers>
<DataTrigger Binding="{Binding ViewType}" Value="1">
<Setter Property="View" Value="{StaticResource one}" />
</DataTrigger>
</Style.Triggers>
<Setter Property="View" Value="{StaticResource two}" />
</Style>
</ListView.Style>
Code Behind:
private int viewType;
public int ViewType
{
get { return viewType; }
set
{
viewType = value;
UpdateProperty("ViewType");
}
}
private void listv_MouseEnter(object sender, MouseEventArgs e)
{
ViewType = 1;
}
private void listv_MouseLeave(object sender, MouseEventArgs e)
{
ViewType = 2;
}
OUTPUT:
Normal View: View 2 in above XAML
MouseOver View: View 1 in above XAML
If you try to achieve above in a
ListBox
, probably you'll end up writing a lot more code forControlTempalate
/ItemTemplate
ofListBox
.
Browser have cross domain security at client side which verify that server allowed to fetch data from your domain. If Access-Control-Allow-Origin
not available in response header, browser disallow to use response in your JavaScript code and throw exception at network level. You need to configure cors
at your server side.
You can fetch request using mode: 'cors'
. In this situation browser will not throw execption for cross domain, but browser will not give response in your javascript function.
So in both condition you need to configure cors
in your server or you need to use custom proxy server.
To automatically fix all android to androidx issues for React Native (prerequisite npx)
Add the following two flags to true
in your gradle.properties
file at ProjectFolder/android/gradle.properties
android.useAndroidX=true
android.enableJetifier=true
Execute
npm install --save-dev jetifier
npx jetify
npx react-native run-android
In your package.json add the following to scripts
"postinstall" : "npx jetify"
More info at https://github.com/mikehardy/jetifier
Update: This is now in-built in react-native 0.60. If you migrate to react-native 0.60 you won't need this step. - https://facebook.github.io/react-native/blog/2019/07/03/version-60#androidx-support
Am afraid this question has been answered a few times, Pls take a look at the following if it's related
There is an open source library [disclaimer: that I wrote]: LazyCache that IMO covers your requirement with two lines of code:
IAppCache cache = new CachingService();
var cachedResults = cache.GetOrAdd("CacheKey",
() => SomeHeavyAndExpensiveCalculation());
It has built in locking by default so the cacheable method will only execute once per cache miss, and it uses a lambda so you can do "get or add" in one go. It defaults to 20 minutes sliding expiration.
There's even a NuGet package ;)
Subtracting 2 Date objects gives you the difference in milliseconds, e.g.:
var diff = Math.abs(new Date('2011/10/09 12:00') - new Date('2011/10/09 00:00'));
Math.abs
is used to be able to use the absolute difference (so new Date('2011/10/09 00:00') - new Date('2011/10/09 12:00')
gives the same result).
Dividing the result by 1000 gives you the number of seconds. Dividing that by 60 gives you the number of minutes. To round to whole minutes, use Math.floor
or Math.ceil
:
var minutes = Math.floor((diff/1000)/60);
In this example the result will be 720
I faced the same problem and tried everything mentioned here. The thing was I didn't refresh my project in eclipse after class creation . And once I refreshed it things worked as expected.
Java String
s are immutable.
In your first example, you are changing the reference to the String
, thus assigning it the value of two other Strings
combined: str + " Morning"
.
On the contrary, a StringBuilder
or StringBuffer
can be modified through its methods.
datetime.date
has a isocalendar()
method, which returns a tuple containing the calendar week:
>>> import datetime
>>> datetime.date(2010, 6, 16).isocalendar()[1]
24
datetime.date.isocalendar() is an instance-method returning a tuple containing year, weeknumber and weekday in respective order for the given date instance.
The OP needed to cast as string outside the {% set ... %}
.
But if that not your case you can do:
{% set curYear = 2013 | string() %}
Note that you need the parenthesis on that jinja filter.
If you're concatenating 2 variables, you can also use the ~
custom operator.
Following query helped me. Instead of using LIKE
, you can use ~*
.
select id, name from hosts where name ~* 'julia|lena|jack';
You can even try this.
String date="09/08/1980"; // take a string date
Timestamp ts=null; //declare timestamp
Date d=new Date(date); // Intialize date with the string date
if(d!=null){ // simple null check
ts=new java.sql.Timestamp(d.getTime()); // convert gettime from date and assign it to your timestamp.
}
<a name='fb_share' type='button_count' href='http://www.facebook.com/sharer.php?appId={YOUR APP ID}&link=<?php the_permalink() ?>' rel='nofollow'>Share</a><script src='http://static.ak.fbcdn.net/connect.php/js/FB.Share' type='text/javascript'></script>
You should use static_cast<char>(i)
to cast the integer i
to char
.
reinterpret_cast
should almost never be used, unless you want to cast one type into a fundamentally different type.
Also reinterpret_cast
is machine dependent so safely using it requires complete understanding of the types as well as how the compiler implements the cast.
For more information about C++ casting see:
pack_forget
and grid_forget
will only remove widgets from view, it doesn't destroy them. If you don't plan on re-using the widgets, your only real choice is to destroy them with the destroy
method.
To do that you have two choices: destroy each one individually, or destroy the frame which will cause all of its children to be destroyed. The latter is generally the easiest and most effective.
Since you claim you don't want to destroy the container frame, create a secondary frame. Have this secondary frame be the container for all the widgets you want to delete, and then put this one frame inside the parent you do not want to destroy. Then, it's just a matter of destroying this one frame and all of the interior widgets will be destroyed along with it.
You're trying to access a JSON, not JSONP.
Notice the difference between your source:
And actual JSONP (a wrapping function):
Search for JSON + CORS/Cross-domain policy and you will find hundreds of SO threads on this very topic.
return Redirect::away($url);
should work to redirect
Also, return Redirect::to($url);
to redirect inside the view.
Try this: only works on console, not in NetBeans integrated console.
public static void cls(){
try {
if (System.getProperty("os.name").contains("Windows"))
new ProcessBuilder("cmd", "/c",
"cls").inheritIO().start().waitFor();
else
Runtime.getRuntime().exec("clear");
} catch (IOException | InterruptedException ex) {}
}
James Curran succinctly says: "Switches based on integers can be optimized to very efficent code. Switches based on other data type can only be compiled to a series of if() statements. For that reason C & C++ only allow switches on integer types, since it was pointless with other types."
My opinion, and it's only that, is that as soon as you start switching on non-primitives you need to start thinking about "equals" versus "==". Firstly comparing two strings can be a fairly lengthy procedure, adding to the performance problems that are mentioned above. Secondly if there is switching on strings there will be demand for switching on strings ignoring case, switching on strings considering/ignoring locale,switching on strings based on regex.... I would approve of a decision that saved a lot of time for the language developers at the cost of a small amount of time for programmers.
<div id="hassaan">
<div class="label">My Label:</div>
<div class="text">My text</div>
</div>
CSS:
#hassaan{ margin:auto; width:960px;}
#hassaan:nth-child(n){ clear:both;}
.label, .text{ width:480px; float:left;}
Simpler and Easy fix to avoid confusions..
For Windows users to use multiple or different git accounts for different projects.
Following steps: Go Control Panel and Search for Credential Manager. Then Go to Credential Manager -> Windows Credentials
Now remove the git:https//github.com node under Generic Credentials Heading
This will remove the current credentials. Now you can add any project through git pull it will ask for username and password.
When you face any issue with other account do the same process.
Thanks
The Chr
function in VB.NET converts the integer back to the character:
Dim i As Integer = Asc("x") ' Convert to ASCII integer.
Dim x As Char = Chr(i) ' Convert ASCII integer to char.
Why does it have to be so complicated?
#include <windows.h>
int main(int argc, char** argv) // argv[0] = C:\dev\test.exe
{
char *p = strrchr(argv[0], '\\');
if(p) p[0] = 0;
printf(argv[0]); // argv[0] = C:\dev
}
There isn't any function in the standard library (to my knowledge) that will do it, but there are absolutely modules out there which have such functions. However, its easy enough that you can just write your own function:
def normalize(lst):
s = sum(lst)
return map(lambda x: float(x)/s, lst)
Sample output:
>>> normed = normalize(raw)
>>> normed
[0.25, 0.5, 0.25]
Moq version 4.8 (or later) has much improved support for by-ref parameters:
public interface IGobbler
{
bool Gobble(ref int amount);
}
delegate void GobbleCallback(ref int amount); // needed for Callback
delegate bool GobbleReturns(ref int amount); // needed for Returns
var mock = new Mock<IGobbler>();
mock.Setup(m => m.Gobble(ref It.Ref<int>.IsAny)) // match any value passed by-ref
.Callback(new GobbleCallback((ref int amount) =>
{
if (amount > 0)
{
Console.WriteLine("Gobbling...");
amount -= 1;
}
}))
.Returns(new GobbleReturns((ref int amount) => amount > 0));
int a = 5;
bool gobbleSomeMore = true;
while (gobbleSomeMore)
{
gobbleSomeMore = mock.Object.Gobble(ref a);
}
The same pattern works for out
parameters.
It.Ref<T>.IsAny
also works for C# 7 in
parameters (since they are also by-ref).
You can use jquery for this:
$('body').bind('copy paste',function(e) {
e.preventDefault(); return false;
});
Using jQuery bind()
and specififying your desired eventTypes
.
I faced the same issue and tried various solutions to load the html page from Spring MVC, following solution worked for me
Step-1 in server's web.xml comment these two lines
<!-- <mime-mapping>
<extension>htm</extension>
<mime-type>text/html</mime-type>
</mime-mapping>-->
<!-- <mime-mapping>
<extension>html</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
-->
Step-2 enter following code in application's web xml
<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
Step-3 create a static controller class
@Controller
public class FrontController {
@RequestMapping("/landingPage")
public String getIndexPage() {
return "CompanyInfo";
}
}
Step-4 in the Spring configuration file change the suffix to .htm .htm
Step-5 Rename page as .htm file and store it in WEB-INF and build/start the server
localhost:8080/.../landingPage
I just want to say guys:
Only Play With Margin
It is a lot easier to add space between <li>
if you play with margin.
No, you need to handle every statement separately..
UPDATE table1
Statement1;
UPDATE table 1
Statement2;
And so on
In Git, you cannot commit empty folders, because Git does not actually save folders, only files. You'll have to create some placeholder file inside those directories if you actually want them to be "empty" (i.e. you have no committable content).
Using bash:
readarray -t LINES < file.txt
COUNT=${#LINES[@]}
for I in "${!LINES[@]}"; do
INDEX=$(( (I * 12 - 1) / COUNT + 1 ))
echo "${LINES[I]}" >> "file${INDEX}.txt"
done
Using awk:
awk '{
a[NR] = $0
}
END {
for (i = 1; i in a; ++i) {
x = (i * 12 - 1) / NR + 1
sub(/\..*$/, "", x)
print a[i] > "file" x ".txt"
}
}' file.txt
Unlike split
this one makes sure that number of lines are most even.
I tested Github Flavored Markdown for a while and can summarize with four rules:
-
For example, if your section is named this:
## 1.1 Hello World
Create a link to it this way:
[Link](#11-hello-world)
7 years later and this code has helped me. However, my times still were not showing up correctly.
Using Matplotlib 2.0.0 and I had to add the following bit of code from Editing the date formatting of x-axis tick labels in matplotlib by Paul H.
import matplotlib.dates as mdates
myFmt = mdates.DateFormatter('%d')
ax.xaxis.set_major_formatter(myFmt)
I changed the format to (%H:%M) and the time displayed correctly.
All thanks to the community.
There is a Spark JIRA, SPARK-7481, open as of today, oct 20, 2016, to add a spark-cloud module which includes transitive dependencies on everything s3a and azure wasb: need, along with tests.
And a Spark PR to match. This is how I get s3a support into my spark builds
If you do it by hand, you must get hadoop-aws JAR of the exact version the rest of your hadoop JARS have, and a version of the AWS JARs 100% in sync with what Hadoop aws was compiled against. For Hadoop 2.7.{1, 2, 3, ...}
hadoop-aws-2.7.x.jar
aws-java-sdk-1.7.4.jar
joda-time-2.9.3.jar
+ jackson-*-2.6.5.jar
Stick all of these into SPARK_HOME/jars
. Run spark with your credentials set up in Env vars or in spark-default.conf
the simplest test is can you do a line count of a CSV File
val landsatCSV = "s3a://landsat-pds/scene_list.gz"
val lines = sc.textFile(landsatCSV)
val lineCount = lines.count()
Get a number: all is well. Get a stack trace. Bad news.
const ScrollDemo = () => {
const myRef = useRef(null)
const executeScroll = () => myRef.current.scrollIntoView()
// run this function from an event handler or an effect to execute scroll
return (
<>
<div ref={myRef}>Element to scroll to</div>
<button onClick={executeScroll}> Click to scroll </button>
</>
)
}
Click here for a full demo on StackBlits
class ReadyToScroll extends Component {
constructor(props) {
super(props)
this.myRef = React.createRef()
}
render() {
return <div ref={this.myRef}>Element to scroll to</div>
}
executeScroll = () => this.myRef.current.scrollIntoView()
// run this method to execute scrolling.
}
class ReadyToScroll extends Component {
render() {
return <div ref={ (ref) => this.myRef=ref }>Element to scroll to</div>
}
executeScroll = () => this.myRef.scrollIntoView()
// run this method to execute scrolling.
}
String refs harm performance, aren't composable, and are on their way out (Aug 2018).
string refs have some issues, are considered legacy, and are likely to be removed in one of the future releases. [Official React documentation]
/* css */
html {
scroll-behavior: smooth;
}
We want the ref to be attached to a dom element, not to a react component. So when passing it to a child component we can't name the prop ref.
const MyComponent = () => {
const myRef = useRef(null)
return <ChildComp refProp={myRef}></ChildComp>
}
Then attach the ref prop to a dom element.
const ChildComp = (props) => {
return <div ref={props.refProp} />
}
Just look at the python GUI programming options at http://wiki.python.org/moin/GuiProgramming. But, Consider Wxpython for your GUI application as it is cross platform. And,from above link you could also get some IDE to work upon.
In iTunes 11 you can go to the view menu, and "Show Sidebar", this will give you the sidebar, that you can drag 'n drop to.
You'll drag 'n drop to the open area that will be near the bottom of the sidebar (I'm typically doing this with both an IPA and a provisioning profile). After you do that, there will be an apps menu that appears in the sidebar with your app in it. Click on that, and you'll see your application in the main view. You can then drag your application from there to your device. Below, please find a video (it's private, so you'll need the URL) that outlines the steps visually: http://youtube.com/watch?v=0ACq4CRpEJ8&feature=youtu.be