I've had this problem. See The Python "Connection Reset By Peer" Problem.
You have (most likely) run afoul of small timing issues based on the Python Global Interpreter Lock.
You can (sometimes) correct this with a time.sleep(0.01)
placed strategically.
"Where?" you ask. Beats me. The idea is to provide some better thread concurrency in and around the client requests. Try putting it just before you make the request so that the GIL is reset and the Python interpreter can clear out any pending threads.
Use the File.WriteAllText
method. It creates the file if it doesn't exist and overwrites it if it exists.
I'm not sure that is the problem but what worked for me is calling mVideoView.start();
inside the mVideoView.setOnPreparedListener
event callback.
For example:
Uri uriVideo = Uri.parse(<your link here>);
MediaController mediaController = new MediaController(mContext);
mediaController.setAnchorView(mVideoView);
mVideoView.setMediaController(mediaController);
mVideoView.setVideoURI(uriVideo);
mVideoView.requestFocus();
mVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener()
{
@Override
public void onPrepared(MediaPlayer mp)
{
mVideoViewPeekItem.start();
}
});
You can use asyncio. (Documentation can be found here). It is used as a foundation for multiple Python asynchronous frameworks that provide high-performance network and web-servers, database connection libraries, distributed task queues, etc. Plus it has both high-level and low-level APIs to accomodate any kind of problem.
import asyncio
def background(f):
def wrapped(*args, **kwargs):
return asyncio.get_event_loop().run_in_executor(None, f, *args, **kwargs)
return wrapped
@background
def your_function(argument):
#code
Now this function will be run in parallel whenever called without putting main program into wait state. You can use it to parallelize for loop as well. When called for a for loop, though loop is sequential but every iteration runs in parallel to the main program as soon as interpreter gets there. For instance:
@background
def your_function(argument):
time.sleep(5)
print('function finished for '+str(argument))
for i in range(10):
your_function(i)
print('loop finished')
This produces following output:
loop finished
function finished for 4
function finished for 8
function finished for 0
function finished for 3
function finished for 6
function finished for 2
function finished for 5
function finished for 7
function finished for 9
function finished for 1
I use this version
<style><%@include file="/WEB-INF/css/style.css"%></style>
how about just getting the length of char in your EditText and display it?
something along the line of
tv.setText(s.length() + " / " + String.valueOf(charCounts));
>>> average = [1,3,2,1,1,0,24,23,7,2,727,2,7,68,7,83,2]
>>> matches = [i for i in range(0,len(average)) if average[i]<2 or average[i]>4]
>>> matches
[0, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15]
My approach was to make a virtual attribute instead of adding database columns.
class Choice
belongs_to :user
belongs_to :answer
# ------- Helpers -------
def question
answer.question
end
# extra sugar
def question_id
answer.question_id
end
end
This approach is pretty simple, but comes with tradeoffs. It requires Rails to load answer
from the db, and then question
. This can be optimized later by eager loading the associations you need (i.e. c = Choice.first(include: {answer: :question})
), however, if this optimization is necessary, then stephencelis' answer is probably a better performance decision.
There's a time and place for certain choices, and I think this choice is better when prototyping. I wouldn't use it for production code unless I knew it was for an infrequent use case.
We'll do it using just CSS pseudo selectors!
This technique will work with dynamically generated content and different font sizes and widths.
HTML:
<div class='split-color'>Two is better than one.</div>
CSS:
.split-color > span {
white-space: pre-line;
position: relative;
color: #409FBF;
}
.split-color > span:before {
content: attr(data-content);
pointer-events: none; /* Prevents events from targeting pseudo-element */
position: absolute;
overflow: hidden;
color: #264A73;
width: 50%;
z-index: 1;
}
To wrap the dynamically generated string, you could use a function like this:
// Wrap each letter in a span tag and return an HTML string
// that can be used to replace the original text
function wrapString(str) {
var output = [];
str.split('').forEach(function(letter) {
var wrapper = document.createElement('span');
wrapper.dataset.content = wrapper.innerHTML = letter;
output.push(wrapper.outerHTML);
});
return output.join('');
}
// Replace the original text with the split-color text
window.onload = function() {
var el = document.querySelector('.split-color'),
txt = el.innerHTML;
el.innerHTML = wrapString(txt);
}
You can find out by measuring memory usage size after calling garbage collector multiple times:
Runtime runtime = Runtime.getRuntime();
while(true) {
...
if(System.currentTimeMillis() % 4000 == 0){
System.gc();
float usage = (float) (runtime.totalMemory() - runtime.freeMemory()) / 1024 / 1024;
System.out.println("Used memory: " + usage + "Mb");
}
}
If the output numbers were equal, there is no memory leak in your application, but if you saw difference between the numbers of memory usage (increasing numbers), there is memory leak in your project. For example:
Used memory: 14.603279Mb
Used memory: 14.737213Mb
Used memory: 14.772224Mb
Used memory: 14.802681Mb
Used memory: 14.840599Mb
Used memory: 14.900841Mb
Used memory: 14.942261Mb
Used memory: 14.976143Mb
Note that sometimes it takes some time to release memory by some actions like streams and sockets. You should not judge by first outputs, You should test it in a specific amount of time.
Using this you can avoid the loop.
// obj is the params object with key-value pair.
// This is how you convert that to HttpParams and pass this to GET API.
const params = Object.getOwnPropertyNames(obj)
.reduce((p, key) => p.set(key, obj[key]), new HttpParams());
Furthermore, I suggest making toHttpParams function in your commonly used service. So you can call the function to convert the object to the HttpParams.
/**
* Convert Object to HttpParams
* @param {Object} obj
* @returns {HttpParams}
*/
toHttpParams(obj: Object): HttpParams {
return Object.getOwnPropertyNames(obj)
.reduce((p, key) => p.set(key, obj[key]), new HttpParams());
}
Update:
Since 5.0.0-beta.6 (2017-09-03) they added new feature (accept object map for HttpClient headers & params)
Going forward the object can be passed directly instead of HttpParams.
This is the other reason if you have used one common function like toHttpParams mentioned above, you can easily remove it or do changes if required.
Given your edited problem description, I'd suggest using COALESCE()
instead of that unwieldy CASE
expression:
SELECT FullName
FROM (
SELECT COALESCE(LastName+', '+FirstName, FirstName) AS FullName
FROM customers
) c
GROUP BY FullName;
Of course! jQuery is just a library that utilizes javascript after all.
You can use document.getElementById to get the element in question, then change its height accordingly, through element.style.height.
elementToChange = document.getElementById('collapseableEl');
elementToChange.style.height = '100%';
Wrap that up in a neat little function that caters for toggling back and forth and you have yourself a solution.
If I have the class:
public class MyClass
{
public void MyMethod()
{
}
}
and I then do:
MyClass myClass = null;
myClass.MyMethod();
The second line throws this exception becuase I'm calling a method on a reference type object that is null
(I.e. has not been instantiated by calling myClass = new MyClass()
)
If you already committed the changes than you would have to revert changes.
If you didn't commit yet, just do a clean checkout git checkout .
Or, using Java8:
Object firstElement = set.stream().findFirst().get();
And then you can do stuff with it straight away:
set.stream().findFirst().ifPresent(<doStuffHere>);
Or, if you want to provide an alternative in case the element is missing (my example returns new default string):
set.stream().findFirst().orElse("Empty string");
You can even throw an exception if the first element is missing:
set.stream().findFirst().orElseThrow(() -> new MyElementMissingException("Ah, blip, nothing here!"));
Kudos to Alex Vulaj
for prompting me to provide more examples beyond the initial grabbing of the first element.
Thought I'd just add that the answer given by Dr.Flink can also be applied to a Bootstrap 3 form-horizontal
block - which can be very handy if you want to use background colours for each cell. In order for this to work for bootstrap forms, you would need to wrap the form contents which just serves to replicate a table-like structure.
The example below also provides the CSS which demonstrates an additional media query allows Bootstrap 3 to simply takeover and do it's normal thing on the smaller screen(s). This also works in IE8+ .
Example:
<form class="form-horizontal" role="form">
<div class="form-wrapper">
<div class="form-group">
<label class="col-xs-12 col-sm-2 control-label">My Label</label>
<div class="col-xs-12 col-sm-10">
Some content
</div>
</div>
</div>
</form>
.form-wrapper {
display: table;
}
.form-wrapper .form-group {
display: table-row;
}
.form-wrapper .form-group .control-label {
display: table-cell;
float: none;
}
.form-wrapper .form-group label + div {
display: table-cell;
float: none;
}
@media (max-width: 768px) {
.form-wrapper {
display: inherit;
}
.form-wrapper .form-group {
display: block;
}
.form-wrapper .form-group .control-label {
display: inherit;
}
.form-wrapper .form-group label + div {
display: inherit;
}
}
You can use the following example.
String date = "2011-08-12T20:17:46.384Z";
String inputPattern = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";
String outputPattern = "yyyy-MM-dd HH:mm:ss";
LocalDateTime inputDate = null;
String outputDate = null;
DateTimeFormatter inputFormatter = DateTimeFormatter.ofPattern(inputPattern, Locale.ENGLISH);
DateTimeFormatter outputFormatter = DateTimeFormatter.ofPattern(outputPattern, Locale.ENGLISH);
inputDate = LocalDateTime.parse(date, inputFormatter);
outputDate = outputFormatter.format(inputDate);
System.out.println("inputDate: " + inputDate);
System.out.println("outputDate: " + outputDate);
I also tried to use CURRVAL, in my case to find out if some process inserted new rows to some table with that sequence as Primary Key. My assumption was that CURRVAL would be the fastest method. But a) CurrVal does not work, it will just get the old value because you are in another Oracle session, until you do a NEXTVAL in your own session. And b) a select max(PK) from TheTable
is also very fast, probably because a PK is always indexed. Or select count(*) from TheTable
. I am still experimenting, but both SELECTs seem fast.
I don't mind a gap in a sequence, but in my case I was thinking of polling a lot, and I would hate the idea of very large gaps. Especially if a simple SELECT would be just as fast.
Conclusion:
You can combine the two functions; coerce to characters thence to numerics:
> fac <- factor(c("1","2","1","2"))
> as.numeric(as.character(fac))
[1] 1 2 1 2
In order to use our own class objects as keys in collections like HashMap, Hashtable etc.. , we should override both methods ( hashCode() and equals() ) by having an awareness on internal working of collection. Otherwise, it leads to wrong results which we are not expected.
Inkscape is used by many people on Wikipedia to convert PDF to SVG.
They even have a handy guide on how to do so!
Use GetParent()
as shown, works nicely. Add error checking as you need.
var fn = openFileDialogSapTable.FileName;
var currentPath = Path.GetFullPath( fn );
currentPath = Directory.GetParent(currentPath).FullName;
The rules of adding a PHP variable inside of any MySQL statement are plain and simple:
So as your example only involves data literals, then all variables must be added through placeholders (also called parameters). To do so:
And here is how to do it with all popular PHP database drivers:
Such a driver doesn't exist.
mysqli
$type = 'testing';
$reporter = "John O'Hara";
$query = "INSERT INTO contents (type, reporter, description)
VALUES(?, ?, 'whatever')";
$stmt = $mysqli->prepare($query);
$stmt->bind_param("ss", $type, $reporter);
$stmt->execute();
The code is a bit complicated but the detailed explanation of all these operators can be found in my article, How to run an INSERT query using Mysqli, as well as a solution that eases the process dramatically.
For a SELECT query you will need to add just a call to get_result()
method to get a familiar mysqli_result
from which you can fetch the data the usual way:
$reporter = "John O'Hara";
$stmt = $mysqli->prepare("SELECT * FROM users WHERE name=?");
$stmt->bind_param("s", $reporter);
$stmt->execute();
$result = $stmt->get_result();
$row = $result->fetch_assoc(); // or while (...)
$type = 'testing';
$reporter = "John O'Hara";
$query = "INSERT INTO contents (type, reporter, description)
VALUES(?, ?, 'whatever')";
$stmt = $pdo->prepare($query);
$stmt->execute([$type, $reporter]);
In PDO, we can have the bind and execute parts combined, which is very convenient. PDO also supports named placeholders which some find extremely convenient.
Sometimes we have to add a variable that represents another part of a query, such as a keyword or an identifier (a database, table or a field name). It's a rare case but it's better to be prepared.
In this case, your variable must be checked against a list of values explicitly written in your script. This is explained in my other article, Adding a field name in the ORDER BY clause based on the user's choice:
Unfortunately, PDO has no placeholder for identifiers (table and field names), therefore a developer must filter them out manually. Such a filter is often called a "white list" (where we only list allowed values) as opposed to a "black-list" where we list disallowed values.
So we have to explicitly list all possible variants in the PHP code and then choose from them.
Here is an example:
$orderby = $_GET['orderby'] ?: "name"; // set the default value
$allowed = ["name","price","qty"]; // the white list of allowed field names
$key = array_search($orderby, $allowed, true); // see if we have such a name
if ($key === false) {
throw new InvalidArgumentException("Invalid field name");
}
Exactly the same approach should be used for the direction,
$direction = $_GET['direction'] ?: "ASC";
$allowed = ["ASC","DESC"];
$key = array_search($direction, $allowed, true);
if ($key === false) {
throw new InvalidArgumentException("Invalid ORDER BY direction");
}
After such a code, both $direction
and $orderby
variables can be safely put in the SQL query, as they are either equal to one of the allowed variants or there will be an error thrown.
The last thing to mention about identifiers, they must be also formatted according to the particular database syntax. For MySQL it should be backtick
characters around the identifier. So the final query string for our order by example would be
$query = "SELECT * FROM `table` ORDER BY `$orderby` $direction";
The resize event works on modern browsers by attaching the event on window
, and then reading values of thebody
, or other element with for example (.getBoundingClientRect()).
In some earlier browsers it was possible to register resize event handlers on any HTML element. It is still possible to set onresize attributes or use addEventListener() to set a handler on any element. However, resize events are only fired on the window object (i.e. returned by document.defaultView). Only handlers registered on the window object will receive resize events.
window.addEventListener("resize", getSizes, false)_x000D_
_x000D_
function getSizes(){_x000D_
let body = document.body_x000D_
console.log(body.clientWidth +"px x "+ body.clientHeight + "px")_x000D_
}
_x000D_
An other alternative: the ResizeObserver API
Depending your layout, you can watch for resizing on a particular element.
This works well on «responsive» layouts, because the container box get resized when zooming.
function watchBoxchange(e){_x000D_
// console.log(e[0].contentBoxSize.inlineSize+" "+e[0].contentBoxSize.blockSize)_x000D_
info.textContent = e[0].contentBoxSize.inlineSize+" * "+e[0].contentBoxSize.blockSize + "px"_x000D_
}_x000D_
_x000D_
new ResizeObserver(watchBoxchange).observe(fluid)
_x000D_
#fluid {_x000D_
width: 200px;_x000D_
height:100px;_x000D_
overflow: auto;_x000D_
resize: both;_x000D_
border: 3px black solid;_x000D_
display: flex;_x000D_
flex-direction: column;_x000D_
justify-content: center;_x000D_
align-items: center;_x000D_
font-size: 8vh_x000D_
}
_x000D_
<div id="fluid">_x000D_
<info id="info"></info> _x000D_
</div>
_x000D_
Be careful to not overload javascript tasks from user gestures events. Use requestAnimationFrame whenever you needs redraws.
If you want the second highest number you can use
=LARGE(E4:E9;2)
although that doesn't account for duplicates so you could get the same result as the Max
If you want the largest number that is smaller than the maximum number you can use this version
=LARGE(E4:E9;COUNTIF(E4:E9;MAX(E4:E9))+1)
On top of @unutbu answer, you could coerce pandas numpy object array to native (float64) type, something along the line
import pandas as pd
pd.to_numeric(df['tester'], errors='coerce')
Specify errors='coerce' to force strings that can't be parsed to a numeric value to become NaN. Column type would be dtype: float64
, and then isnan
check should work
For .net 4.0
Add a reference to System.net.dll
to the project with using System.Net;
then use the following extensions
// Html encode/decode
public static string HtmDecode(this string htmlEncodedString)
{
if(htmlEncodedString.Length > 0)
{
return System.Net.WebUtility.HtmlDecode(htmlEncodedString);
}
else
{
return htmlEncodedString;
}
}
public static string HtmEncode(this string htmlDecodedString)
{
if(htmlDecodedString.Length > 0)
{
return System.Net.WebUtility.HtmlEncode(htmlDecodedString);
}
else
{
return htmlDecodedString;
}
}
I think the following way you can do it,
typedef struct
{
int flag : 3;
} MyStruct;
Use beforeSend
:
$.ajax({
url: "http://localhost/PlatformPortal/Buyers/Account/SignIn",
data: { signature: authHeader },
type: "GET",
beforeSend: function(xhr){xhr.setRequestHeader('X-Test-Header', 'test-value');},
success: function() { alert('Success!' + authHeader); }
});
http://api.jquery.com/jQuery.ajax/
http://www.w3.org/TR/XMLHttpRequest/#the-setrequestheader-method
This goes hand-in-hand with, "Don't use exceptions to control program flow.", and, "Only use exceptions for exceptional circumstances." If these are done, then exceptions should only be occurring when there's a problem. And if there's a problem, you don't want to fail silently. In the rare anomalies where it's not necessary to handle the problem you should at least log the exception, just in case the anomaly becomes no longer an anomaly. The only thing worse than failing is failing silently.
Ivan Branets 's solution is essentially what fixed this for me, but some more details could be shared.
In my case, I was in VS 2015 using Auto Package restore and TFS. This is all pretty default stuff.
The problem was that when another developer tried to get a solution from TFS, some packages were not fully getting restored. (Why, that I'm not quite sure yet.) But the packages folder contained a folder for the reference and the NuGet package, but it wasn't getting expanded (say a lib folder containing a .dll was missing.) This half there, but not really quite right concept was preventing the package from being restored.
You'll recognize this because the reference will have a yellow exclamation point about not being resolved.
So, the solution of deleting the folder within packages removes the package restore blocking issue. Then you can right click at the top solution level to get the option to restore packages, and now it should work.
FPM is a process manager to manage the FastCGI SAPI (Server API) in PHP.
Basically, it replaces the need for something like SpawnFCGI. It spawns the FastCGI children adaptively (meaning launching more if the current load requires it).
Otherwise, there's not much operating difference between it and FastCGI (The request pipeline from start of request to end is the same). It's just there to make implementing it easier.
This is a problem with your web server sending out an HTTP header that does not match the one you define. For instructions on how to make the server send the correct headers, see this page.
Otherwise, you can also use PHP to modify the headers, but this has to be done before outputting any text using this code:
header('Content-Type: text/html; charset=utf-8');
More information on how to send out headers using PHP can be found in the documentation for the header function.
Don't forget the 5xx errors as well for application errors.
In this case what about 409 (Conflict)? This assumes that the user can fix the problem by deleting stored resources.
Otherwise 507 (not entirely standard) may also work. I wouldn't use 200 unless you use 200 for errors in general.
Try to use android:scaleType="fitXY"
in i-Imagebutton xml
This can be a quick hack to connect hive and python,
from pyhive import hive
cursor = hive.connect('YOUR_HOST_NAME').cursor()
cursor.execute('SELECT * from table_name LIMIT 5',async=True)
print cursor.fetchall()
Output: List of Tuples
Use lodash. In ES6 syntax:
import isEqual from 'lodash/isEqual';
let equal = isEqual([1,2], [1,2]); // true
Or previous js versions:
var isEqual = require('lodash/isEqual');
var equal = isEqual([1,2], [1,2]); // true
Just access the Priority
property of the object returned from the pipeline:
$var = (Get-WSManInstance -enumerate wmicimv2/win32_process).Priority
(This won't work if Get-WSManInstance
returns multiple objects.2)
For the second question: to get two properties there are several options, problably the simplest is to have have one variable* containing an object with two separate properties:
$var = (Get-WSManInstance -enumerate wmicimv2/win32_process | select -first 1 Priority, ProcessID)
and then use, assuming only one process:
$var.Priority
and
$var.ProcessID
If there are multiple processes $var
will be an array which you can index, so to get the properties of the first process (using the array literal syntax @(...)
so it is always a collection1):
$var = @(Get-WSManInstance -enumerate wmicimv2/win32_process | select -first 1 Priority, ProcessID)
and then use:
$var[0].Priority
$var[0].ProcessID
1 PowerShell helpfully for the command line, but not so helpfully in scripts has some extra logic when assigning the result of a pipeline to a variable: if no objects are returned then set $null
, if one is returned then that object is assigned, otherwise an array is assigned. Forcing an array returns an array with zero, one or more (respectively) elements.
2 This changes in PowerShell V3 (at the time of writing in Release Candidate), using a member property on an array of objects will return an array of the value of those properties.
You can use simple jQuery jPut plugin
http://plugins.jquery.com/jput/
<script>
$(document).ready(function(){
var json = [{"name": "name1","email":"[email protected]"},{"name": "name2","link":"[email protected]"}];
//while running this code the template will be appended in your div with json data
$("#tbody").jPut({
jsonData:json,
//ajax_url:"youfile.json", if you want to call from a json file
name:"tbody_template",
});
});
</script>
<table jput="t_template">
<tbody jput="tbody_template">
<tr>
<td>{{name}}</td>
<td>{{email}}</td>
</tr>
</tbody>
</table>
<table>
<tbody id="tbody">
</tbody>
</table>
I would prefer to do it this way:
first generate the list of stored procedures to drop by inspecting the system catalog view:
SELECT 'DROP PROCEDURE [' + SCHEMA_NAME(p.schema_id) + '].[' + p.NAME + '];'
FROM sys.procedures p
This generates a list of DROP PROCEDURE
statements in your SSMS output window.
copy that list into a new query window, and possibly adapt it / change it and then execute it
No messy and slow cursors, gives you the ability to check and double-check your list of procedure to be dropped before you actually drop it
You should find the 'expect' command will do what you need it to do. Its widely available. See here for an example : http://www.thegeekstuff.com/2010/10/expect-examples/
(very rough example)
#!/usr/bin/expect
set pass "mysecret"
spawn /usr/bin/passwd
expect "password: "
send "$pass"
expect "password: "
send "$pass"
This still appears to be an issue, causing package installations to be aborted with warnings about optional packages no being installed because of "Unsupported platform".
The problem relates to the "shrinkwrap" or package-lock.json
which gets persisted after every package manager execution. Subsequent attempts keep failing as this file is referenced instead of package.json
.
Adding these options to the npm install
command should allow packages to install again.
--no-optional argument will prevent optional dependencies from being installed.
--no-shrinkwrap argument, which will ignore an available package lock or
shrinkwrap file and use the package.json instead.
--no-package-lock argument will prevent npm from creating a package-lock.json file.
The complete command looks like this:
npm install --no-optional --no-shrinkwrap --no-package-lock
nJoy!
String parentWindowHandler = driver.getWindowHandle(); // Store your parent window
String subWindowHandler = null;
Set<String> handles = driver.getWindowHandles(); // get all window handles
Iterator<String> iterator = handles.iterator();
subWindowHandler = iterator.next();
driver.switchTo().window(subWindowHandler); // switch to popup window
// Now you are in the popup window, perform necessary actions here
driver.switchTo().window(parentWindowHandler); // switch back to parent window
Another option is to use numpy.full
, an option available in NumPy 1.8+
a = np.full([height, width, 9], np.nan)
This is pretty flexible and you can fill it with any other number that you want.
On the basis that it is easier to ask forgiveness than permission (and, importantly, that the command is safe to run) I would just try to use it and catch the error (OSError in this case - I checked for file does not exist and file is not executable and they both give OSError).
It helps if the executable has something like a --version
flag that is a quick no-op.
import subprocess
myexec = "python2.8"
try:
subprocess.call([myexec, '--version']
except OSError:
print "%s not found on path" % myexec
This is not a general solution, but will be the easiest way for a lot of use cases - those where the code needs to look for a single well known executable which is safe to run, or at least safe to run with a given flag.
Inserting data into the middle of a text file is not a simple task. If possible, you should append it to the end of your file.
The easiest way to append data some text file is to use build-in fs.appendFile(filename, data[, options], callback)
function from fs
module:
var fs = require('fs')
fs.appendFile('log.txt', 'new data', function (err) {
if (err) {
// append failed
} else {
// done
}
})
But if you want to write data to log file several times, then it'll be best to use fs.createWriteStream(path[, options])
function instead:
var fs = require('fs')
var logger = fs.createWriteStream('log.txt', {
flags: 'a' // 'a' means appending (old data will be preserved)
})
logger.write('some data') // append string to your file
logger.write('more data') // again
logger.write('and more') // again
Node will keep appending new data to your file every time you'll call .write
, until your application will be closed, or until you'll manually close the stream calling .end
:
logger.end() // close string
It's complicated.
First of all, in this code
const p = new Promise((resolve) => {
resolve(4);
});
the type of p
is inferred as Promise<{}>
. There is open issue about this on typescript github, so arguably this is a bug, because obviously (for a human), p
should be Promise<number>
.
Then, Promise<{}>
is compatible with Promise<number>
, because basically the only property a promise has is then
method, and then
is compatible in these two promise types in accordance with typescript rules for function types compatibility. That's why there is no error in whatever1
.
But the purpose of async
is to pretend that you are dealing with actual values, not promises, and then you get the error in whatever2
because {}
is obvioulsy not compatible with number
.
So the async
behavior is the same, but currently some workaround is necessary to make typescript compile it. You could simply provide explicit generic argument when creating a promise like this:
const whatever2 = async (): Promise<number> => {
return new Promise<number>((resolve) => {
resolve(4);
});
};
I would have written:
percent = 100
while True:
try:
pyc = int(input('enter pyc :'))
tpy = int(input('enter tpy:'))
percent = (pyc / tpy) * percent
break
except ZeroDivisionError as detail:
print 'Handling run-time error:', detail
yes yes, git gc
is the solution, naturally,
and locally - you can just delete the local repository and clone it again,
the seconds you wait for that huge git & externals to process are collected to long minutes in which are collected to hours of inefficient time spent,
Create a new (entirely, not just a branch) repository from scratch, including the only recent version of files, naturally you'll loose all the history,
but when in code-world it is not time to get sentimental, there is no point dragging along the entire 5 years of code every commit or diff, you can still store the old git & externals somewhere, if you get nostalgic :]
but, at some point you really have to move along :]
your team will thank you!
Try:
msg['Subject'] = "Auto Hella Restart Report " + sys.argv[1]
The +
operator is overridden in python to concatenate strings.
import UIKit
class BorderImage: UIImageView {
override func awakeFromNib() {
self.layoutIfNeeded()
layer.cornerRadius = self.frame.height / 10.0
layer.masksToBounds = true
}
}
Based on @DCDC's answer
If you have the ID of the div, try this:
<input type='submit' onclick='$("#div_id").show()'>
Mac and Android studio users:
Type your char such as & in the string.xml or layout and choose "Option" and "return" keys. Please refer the screen shot
To elaborate on what @Raynos said, the function you have defined is an asynchronous callback. It doesn't execute right away, rather it executes when the file loading has completed. When you call readFile, control is returned immediately and the next line of code is executed. So when you call console.log, your callback has not yet been invoked, and this content has not yet been set. Welcome to asynchronous programming.
Example approaches
const fs = require('fs');
// First I want to read the file
fs.readFile('./Index.html', function read(err, data) {
if (err) {
throw err;
}
const content = data;
// Invoke the next step here however you like
console.log(content); // Put all of the code here (not the best solution)
processFile(content); // Or put the next step in a function and invoke it
});
function processFile(content) {
console.log(content);
}
Or better yet, as Raynos example shows, wrap your call in a function and pass in your own callbacks. (Apparently this is better practice) I think getting into the habit of wrapping your async calls in function that takes a callback will save you a lot of trouble and messy code.
function doSomething (callback) {
// any async callback invokes callback with response
}
doSomething (function doSomethingAfter(err, result) {
// process the async result
});
You have to define a PersistentVolume providing disc space to be consumed by the PersistentVolumeClaim.
When using storageClass
Kubernetes is going to enable "Dynamic Volume Provisioning" which is not working with the local file system.
storageClass
-line from the PersistentVolumeClaimAt creation of the deployment state-description it is usually known which kind (amount, speed, ...) of storage that application will need.
To make a deployment versatile you'd like to avoid a hard dependency on storage. Kubernetes' volume-abstraction allows you to provide and consume storage in a standardized way.
The PersistentVolumeClaim is used to provide a storage-constraint alongside the deployment of an application.
The PersistentVolume offers cluster-wide volume-instances ready to be consumed ("bound
"). One PersistentVolume will be bound to one claim. But since multiple instances of that claim may be run on multiple nodes, that volume may be accessed by multiple nodes.
A PersistentVolume without StorageClass is considered to be static.
"Dynamic Volume Provisioning" alongside with a StorageClass allows the cluster to provision PersistentVolumes on demand. In order to make that work, the given storage provider must support provisioning - this allows the cluster to request the provisioning of a "new" PersistentVolume when an unsatisfied PersistentVolumeClaim pops up.
In order to find how to specify things you're best advised to take a look at the API for your Kubernetes version, so the following example is build from the API-Reference of K8S 1.17:
apiVersion: v1
kind: PersistentVolume
metadata:
name: ckan-pv-home
labels:
type: local
spec:
capacity:
storage: 100Mi
hostPath:
path: "/mnt/data/ckan"
The PersistentVolumeSpec allows us to define multiple attributes.
I chose a hostPath
volume which maps a local directory as content for the volume. The capacity allows the resource scheduler to recognize this volume as applicable in terms of resource needs.
"creating an instance of a class" how about, "you are taking a class and making a new variable of that class that WILL change depending on an input that changes"
Class in the library called Nacho
variable Libre to hold the "instance" that will change
Nacho Libre = new Nacho(Variable, Scanner Input, or whatever goes here, This is the place that accepts the changes then puts the value in "Libre" on the left side of the equals sign (you know "Nacho Libre = new Nacho(Scanner.in)" "Nacho Libre" is on the left of the = (that's not tech talk, that's my way of explaining it)
I think that is better than saying "instance of type" or "instance of class". Really the point is it just needs to be detailed out more.... "instance of type or class" is not good enough for the beginner..... wow, its like a tongue twister and your brain cannot focus on tongue twisters very well.... that "instance" word is very annoying and the mere sound of it drives me nuts.... it begs for more detail.....it begs to be broken down better. I had to google what "instance" meant just to get my bearings straight..... try saying "instance of class" to your grandma.... yikes!
case_when
is now a pretty clean implementation of the SQL-style case when:
structure(list(a = c(1, 3, 4, 6, 3, 2, 5, 1), b = c(1, 3, 4,
2, 6, 7, 2, 6), c = c(6, 3, 6, 5, 3, 6, 5, 3), d = c(6, 2, 4,
5, 3, 7, 2, 6), e = c(1, 2, 4, 5, 6, 7, 6, 3), f = c(2, 3, 4,
2, 2, 7, 5, 2)), .Names = c("a", "b", "c", "d", "e", "f"), row.names = c(NA,
8L), class = "data.frame") -> df
df %>%
mutate( g = case_when(
a == 2 | a == 5 | a == 7 | (a == 1 & b == 4 ) ~ 2,
a == 0 | a == 1 | a == 4 | a == 3 | c == 4 ~ 3
))
Using dplyr 0.7.4
The manual: http://dplyr.tidyverse.org/reference/case_when.html
You can use the ThenBy and ThenByDescending extension methods:
foobarList.OrderBy(x => x.Foo).ThenBy( x => x.Bar)
The correct way to do it would be:
adb -s 123abc12 shell getprop
Which will give you a list of all available properties and their values. Once you know which property you want, you can give the name as an argument to getprop
to access its value directly, like this:
adb -s 123abc12 shell getprop ro.product.model
The details in adb devices -l
consist of the following three properties: ro.product.name
, ro.product.model
and ro.product.device
.
Note that ADB shell ends lines with \r\n
, which depending on your platform might or might not make it more difficult to access the exact value (e.g. instead of Nexus 7
you might get Nexus 7\r
).
I'm very late to answer it. But, I would like to share one example, which I only thought of today. If I told you to cut a piece of paper with dimensions 5m by 5m, then surely you would do that. But suppose I ask you to cut 1000 pieces of paper of the same dimensions. In this case, you won't do the measuring 1000 times; obviously, you would make a frame of 5m by 5m, and then with the help of it you would be able to cut 1000 pieces of paper in less time. So, what you did was make a framework which would do a specific type of task. Instead of performing the same type of task again and again for the same type of applications, you create a framework having all those facilities together in one nice packet, hence providing the abstraction for your application and more importantly many applications.
The following code is the version of the general answer but with corrections and clarity.
import numpy as np
import pandas as pd
import scipy.stats as st
import statsmodels.api as sm
import matplotlib as mpl
import matplotlib.pyplot as plt
import math
import random
mpl.style.use("ggplot")
def danoes_formula(data):
"""
DANOE'S FORMULA
https://en.wikipedia.org/wiki/Histogram#Doane's_formula
"""
N = len(data)
skewness = st.skew(data)
sigma_g1 = math.sqrt((6*(N-2))/((N+1)*(N+3)))
num_bins = 1 + math.log(N,2) + math.log(1+abs(skewness)/sigma_g1,2)
num_bins = round(num_bins)
return num_bins
def plot_histogram(data, results, n):
## n first distribution of the ranking
N_DISTRIBUTIONS = {k: results[k] for k in list(results)[:n]}
## Histogram of data
plt.figure(figsize=(10, 5))
plt.hist(data, density=True, ec='white', color=(63/235, 149/235, 170/235))
plt.title('HISTOGRAM')
plt.xlabel('Values')
plt.ylabel('Frequencies')
## Plot n distributions
for distribution, result in N_DISTRIBUTIONS.items():
# print(i, distribution)
sse = result[0]
arg = result[1]
loc = result[2]
scale = result[3]
x_plot = np.linspace(min(data), max(data), 1000)
y_plot = distribution.pdf(x_plot, loc=loc, scale=scale, *arg)
plt.plot(x_plot, y_plot, label=str(distribution)[32:-34] + ": " + str(sse)[0:6], color=(random.uniform(0, 1), random.uniform(0, 1), random.uniform(0, 1)))
plt.legend(title='DISTRIBUTIONS', bbox_to_anchor=(1.05, 1), loc='upper left')
plt.show()
def fit_data(data):
## st.frechet_r,st.frechet_l: are disbled in current SciPy version
## st.levy_stable: a lot of time of estimation parameters
ALL_DISTRIBUTIONS = [
st.alpha,st.anglit,st.arcsine,st.beta,st.betaprime,st.bradford,st.burr,st.cauchy,st.chi,st.chi2,st.cosine,
st.dgamma,st.dweibull,st.erlang,st.expon,st.exponnorm,st.exponweib,st.exponpow,st.f,st.fatiguelife,st.fisk,
st.foldcauchy,st.foldnorm, st.genlogistic,st.genpareto,st.gennorm,st.genexpon,
st.genextreme,st.gausshyper,st.gamma,st.gengamma,st.genhalflogistic,st.gilbrat,st.gompertz,st.gumbel_r,
st.gumbel_l,st.halfcauchy,st.halflogistic,st.halfnorm,st.halfgennorm,st.hypsecant,st.invgamma,st.invgauss,
st.invweibull,st.johnsonsb,st.johnsonsu,st.ksone,st.kstwobign,st.laplace,st.levy,st.levy_l,
st.logistic,st.loggamma,st.loglaplace,st.lognorm,st.lomax,st.maxwell,st.mielke,st.nakagami,st.ncx2,st.ncf,
st.nct,st.norm,st.pareto,st.pearson3,st.powerlaw,st.powerlognorm,st.powernorm,st.rdist,st.reciprocal,
st.rayleigh,st.rice,st.recipinvgauss,st.semicircular,st.t,st.triang,st.truncexpon,st.truncnorm,st.tukeylambda,
st.uniform,st.vonmises,st.vonmises_line,st.wald,st.weibull_min,st.weibull_max,st.wrapcauchy
]
MY_DISTRIBUTIONS = [st.beta, st.expon, st.norm, st.uniform, st.johnsonsb, st.gennorm, st.gausshyper]
## Calculae Histogram
num_bins = danoes_formula(data)
frequencies, bin_edges = np.histogram(data, num_bins, density=True)
central_values = [(bin_edges[i] + bin_edges[i+1])/2 for i in range(len(bin_edges)-1)]
results = {}
for distribution in MY_DISTRIBUTIONS:
## Get parameters of distribution
params = distribution.fit(data)
## Separate parts of parameters
arg = params[:-2]
loc = params[-2]
scale = params[-1]
## Calculate fitted PDF and error with fit in distribution
pdf_values = [distribution.pdf(c, loc=loc, scale=scale, *arg) for c in central_values]
## Calculate SSE (sum of squared estimate of errors)
sse = np.sum(np.power(frequencies - pdf_values, 2.0))
## Build results and sort by sse
results[distribution] = [sse, arg, loc, scale]
results = {k: results[k] for k in sorted(results, key=results.get)}
return results
def main():
## Import data
data = pd.Series(sm.datasets.elnino.load_pandas().data.set_index('YEAR').values.ravel())
results = fit_data(data)
plot_histogram(data, results, 5)
if __name__ == "__main__":
main()
Add a vertical align to the CSS content #column-content strong
too:
#column-content strong {
...
vertical-align: middle;
}
Also see your updated example.
=== UPDATE ===
With a span around the other text and another vertical align:
HTML:
... <span>yet another text content that should be centered vertically</span> ...
CSS:
#column-content span {
vertical-align: middle;
}
Also see the next example.
I find such a function named is_sequence in tensorflow.
def is_sequence(seq):
"""Returns a true if its input is a collections.Sequence (except strings).
Args:
seq: an input sequence.
Returns:
True if the sequence is a not a string and is a collections.Sequence.
"""
return (isinstance(seq, collections.Sequence)
and not isinstance(seq, six.string_types))
And I have verified that it meets your needs.
Try this:
function btnClick() {
var x = document.getElementById("mytable").getElementsByTagName("td");
x[0].innerHTML = "i want to change my cell color";
x[0].style.backgroundColor = "yellow";
}
Set from JS, backgroundColor
is the equivalent of background-color
in your style-sheet.
Note also that the .cells
collection belongs to a table row, not to the table itself. To get all the cells from all rows you can instead use getElementsByTagName()
.
Couldn't you do this using a string resource and enums? You can define a string resource that had the name of the screen size, such as SMALL, MEDIUM, or LARGE. Then you could use the value of the string resource to create an instance of the enum.
Define an Enum in your code for the different screen sizes you care about.
public Enum ScreenSize {
SMALL,
MEDIUM,
LARGE,;
}
Define a string resource, say screensize, whose value will be either SMALL, MEDIUM, or LARGE.
<string name="screensize">MEDIUM</string>
screensize
in a string resource in each dimension you care about.<string name="screensize">MEDIUM</string>
would go in values-sw600dp/strings.xml and values-medium/strings.xml and <string name="screensize">LARGE</string>
would go in sw720dp/strings.xml and values-large/strings.xml.ScreenSize size = ScreenSize.valueOf(getReources().getString(R.string.screensize);
Using PowerShell you can minimize from the same file without opening a new instance.
powershell -window minimized -command ""
Also -window hidden
and -window normal
is available to hide completely or restore.
You can try this:
this.activatedRoute.paramMap.subscribe(x => {
let id = x.get('id');
console.log(id);
});
I like to use a rolling file appender to write the logging info to a file. My log4j properties file typically looks something like this. I prefer this way since I like to make package specific logging in case I need varying degrees of logging for different packages. Only one package is mentioned in the example.
log4j.appender.RCS=org.apache.log4j.DailyRollingFileAppender
log4j.appender.RCS.File.DateFormat='.'yyyy-ww
#define output location
log4j.appender.RCS.File=C:temp/logs/MyService.log
#define the file layout
log4j.appender.RCS.layout=org.apache.log4j.PatternLayout
log4j.appender.RCS.layout.ConversionPattern=%d{yyyy-MM-dd hh:mm a} %5 %c{1}: Line#%L - %m%n
log4j.rootLogger=warn
#Define package specific logging
log4j.logger.MyService=debug, RCS
The only (& even though cumbersome but yet expedient / relatively quick) way I can do this, is to concatenate the any-dimensional array, and reduce it to 1 dimension, with "/[column number]//\|" as the delimiter.
& use a single-cell result multiple lookupall macro function on the this 1-d column.
& then index match to pull out the positions. (usuing multiple find match)
That way you get all matching occurrences of the element/string your looking for, in the original any-dimension array, and their positions. In one cell.
Wish I could write a macro / function for this entire process. It would save me more fuss.
The idiomatic way would be to use list comprehension:
myList = [10,20,30,40,50,60,70,80,90]
myInt = 10
newList = [x / myInt for x in myList]
or, if you need to maintain the reference to the original list:
myList[:] = [x / myInt for x in myList]
cakephp version >= 3.6
echo $this->Form->control('field_name', ['type' => 'select', 'options' => $departments, 'default' => 'your value']);
The problem is that, even if you see the error, your return false
affects the callback of the .each()
method ... so, even if there is an error, you reach the line
$('form').unbind('submit').submit();
and the form is submitted.
You should create a variable, validated
, for example, and set it to true. Then, in the callback, instead of return false
, set validated = false
.
Finally...
if (validated) $('form').unbind('submit').submit();
This way, only if there are no errors will the form be submitted.
you can simply send the data using window.location.href
first store the value to send from testing.html
in the script tag, variable say
<script>
var data = value_to_send
window.loaction.href="next.htm?data="+data
</script>
this is sending through a get request
axios({
method: 'post', //put
url: url,
headers: {'Authorization': 'Bearer'+token},
data: {
firstName: 'Keshav', // This is the body part
lastName: 'Gera'
}
});
ElektroStudios answer is a bit misleading.
"when you launch a bat file the working dir is the dir where it was launched" This is true if the user clicks on the batch file in the explorer.
However, if the script is called from another script using the CALL command, the current working directory does not change.
Thus, inside your script, it is better to use %~dp0subfolder\file1.txt
Please also note that %~dp0 will end with a backslash when the current script is not in the current working directory. Thus, if you need the directory name without a trailing backslash, you could use something like
call :GET_THIS_DIR
echo I am here: %THIS_DIR%
goto :EOF
:GET_THIS_DIR
pushd %~dp0
set THIS_DIR=%CD%
popd
goto :EOF
It depend on your access right but for me this work on phpmyadmin sql console
SHOW VARIABLES;
then after to change some variables you can do
SET GLOBAL max_connections = 1000;
or
SET @@GLOBAL.max_connections = 1000;
give a try
Instead of creating selector, Best way to create a style.
<style name="AppTheme.BottomBar">
<item name="colorPrimary">@color/colorAccent</item>
</style>
and to change the text size, selected or non selected.
<dimen name="design_bottom_navigation_text_size" tools:override="true">11sp</dimen>
<dimen name="design_bottom_navigation_active_text_size" tools:override="true">12sp</dimen>
Enjoy Android!
I really recommend you use jquery for the javascript calls and some implementation of JSR311 like jersey for the service layer, which would delegate to your controllers.
This will help you with all the underlying logic of handling the HTTP calls and your data serialization, which is a big help.
In your custom array adapter, you override the getView() method, as you presumably familiar with. Then all you have to do is use a switch statement or an if statement to return a certain custom View depending on the position argument passed to the getView method. Android is clever in that it will only give you a convertView of the appropriate type for your position/row; you do not need to check it is of the correct type. You can help Android with this by overriding the getItemViewType() and getViewTypeCount() methods appropriately.
From the first link on google;
function call_func(_0x41dcx2) {
var _0x41dcx3 = eval('(' + _0x41dcx2 + ')');
var _0x41dcx4 = document['createElement']('div');
var _0x41dcx5 = _0x41dcx3['id'];
var _0x41dcx6 = _0x41dcx3['Student_name'];
var _0x41dcx7 = _0x41dcx3['student_dob'];
var _0x41dcx8 = '<b>ID:</b>';
_0x41dcx8 += '<a href="/learningyii/index.php?r=student/view& id=' + _0x41dcx5 + '">' + _0x41dcx5 + '</a>';
_0x41dcx8 += '<br/>';
_0x41dcx8 += '<b>Student Name:</b>';
_0x41dcx8 += _0x41dcx6;
_0x41dcx8 += '<br/>';
_0x41dcx8 += '<b>Student DOB:</b>';
_0x41dcx8 += _0x41dcx7;
_0x41dcx8 += '<br/>';
_0x41dcx4['innerHTML'] = _0x41dcx8;
_0x41dcx4['setAttribute']('class', 'view');
$('#StudentGridViewId')['find']('.items')['prepend'](_0x41dcx4);
};
It won't get you all the way back to source, and that's not really possible, but it'll get you out of a hole.
Using lookup tables and the like works, but is just overkill, here are some very simple ways of taking a string to hex and hex back to a string:
#include <stdexcept>
#include <sstream>
#include <iomanip>
#include <string>
#include <cstdint>
std::string string_to_hex(const std::string& in) {
std::stringstream ss;
ss << std::hex << std::setfill('0');
for (size_t i = 0; in.length() > i; ++i) {
ss << std::setw(2) << static_cast<unsigned int>(static_cast<unsigned char>(in[i]));
}
return ss.str();
}
std::string hex_to_string(const std::string& in) {
std::string output;
if ((in.length() % 2) != 0) {
throw std::runtime_error("String is not valid length ...");
}
size_t cnt = in.length() / 2;
for (size_t i = 0; cnt > i; ++i) {
uint32_t s = 0;
std::stringstream ss;
ss << std::hex << in.substr(i * 2, 2);
ss >> s;
output.push_back(static_cast<unsigned char>(s));
}
return output;
}
for some iPhone you have to put your viewport like this
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, shrink-to-fit=no, user-scalable=0" />
I created a small library that does this, no code change needed other than replacing your wrapping view and import of TextInput:
import { Form, TextInput } from 'react-native-autofocus'
export default () => (
<Form>
<TextInput placeholder="test" />
<TextInput placeholder="test 2" />
</Form>
)
https://github.com/zackify/react-native-autofocus
Explained in detail here: https://zach.codes/autofocus-inputs-in-react-native/
Some extend
functions in third party libraries are more complex than others. Knockout.js for instance contains a minimally simple one that doesn't have some of the checks that jQuery's does:
function extend(target, source) {
if (source) {
for(var prop in source) {
if(source.hasOwnProperty(prop)) {
target[prop] = source[prop];
}
}
}
return target;
}
Yes, python strings are immutable and any modification will result in creating a new string. This is how it's mostly done.
So, go ahead with it.
You can also do like this :
$("#table-filters li").parent().find('li').removeClass("active");
In Netbeans you can right click on the project and run it, but in IntelliJ IDEA you have to select the index.jsp file or the welcome file to run the project.
this is because Netbeans generate the following tag in web.xml and IntelliJ do not.
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
use this code
SELECT *
FROM paypal_ipn_orders
GROUP BY payer_email
HAVING COUNT( payer_email) >1
How is the HashMap declaration expressed in that scope? It should be:
HashMap<String, ArrayList> dictMap
If not, it is assumed to be Objects.
For instance, if your code is:
HashMap dictMap = new HashMap<String, ArrayList>();
...
ArrayList current = dictMap.get(dictCode);
that will not work. Instead you want:
HashMap<String, ArrayList> dictMap = new HashMap<String, Arraylist>();
...
ArrayList current = dictMap.get(dictCode);
The way generics work is that the type information is available to the compiler, but is not available at runtime. This is called type erasure. The implementation of HashMap (or any other generics implementation) is dealing with Object. The type information is there for type safety checks during compile time. See the Generics documentation.
Also note that ArrayList
is also implemented as a generic class, and thus you might want to specify a type there as well. Assuming your ArrayList
contains your class MyClass
, the line above might be:
HashMap<String, ArrayList<MyClass>> dictMap
you have to set cellpadding and cellspacing that's it.
<table cellpadding="5" cellspacing="5">
<tr>
<td>One</td>
<td>Two</td>
<td>Three</td>
<td>Four</td>
</tr>
</table>
If you're using Visual Studio (this might work in Eclipse also, but I never tried) and you copy & paste into Microsoft Word (or any other microsoft product) it will paste the code in whatever color your IDE had. Then you just need to copy the text out of word and into your desired application and it will paste as rich text.
I've only seen this work across Visual Studio to other Microsoft products though so I don't know if it will be any help.
jstl-1.2.jar --> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
jstl-1.1.jar --> <%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
also please check for the dependency jars that you have added javax.servlet.jar
and javax.servlet.jsp.jstl-1.2.1.jar
or not in your WEB-INF/lib folder. In my case these two solved the issue.
I think there is an easier way
import pandas as pd
dataset = pd.read_csv('table1.csv')
ftCol = dataset.iloc[:, 0].values
So in here iloc[:, 0]
, :
means all values, 0
means the position of the column.
in the example below ID
will be selected
ID | Name | Address | City | State | Zip | Phone | OPEID | IPEDS |
10 | C... | 130 W.. | Mo.. | AL... | 3.. | 334.. | 01023 | 10063 |
BufferedImage is a subclass of Image. You don't need to do any conversion.
Neither one magically confers security on a request, however GET implies some side effects that generally prevent it from being secure.
GET URLs show up in browser history and webserver logs. For this reason, they should never be used for things like login forms and credit card numbers.
However, just POSTing that data doesn't make it secure, either. For that you want SSL. Both GET and POST send data in plaintext over the wire when used over HTTP.
There are other good reasons to POST data, too - like the ability to submit unlimited amounts of data, or hide parameters from casual users.
The downside is that users can't bookmark the results of a query sent via POST. For that, you need GET.
ChronoUnit.between
Use instances of ChronoUnit
to calculate amount of time in different units (days,months, seconds).
For Example:
ChronoUnit.DAYS.between(startDate,endDate)
In Linux, this information is available in the /proc file system. I'm not a big fan of the text file format used, as each Linux distribution seems to customize at least one important file. A quick look as the source to 'ps' reveals the mess.
But here is where to find the information you seek:
/proc/meminfo contains the majority of the system-wide information you seek. Here it looks like on my system; I think you are interested in MemTotal, MemFree, SwapTotal, and SwapFree:
Anderson cxc # more /proc/meminfo
MemTotal: 4083948 kB
MemFree: 2198520 kB
Buffers: 82080 kB
Cached: 1141460 kB
SwapCached: 0 kB
Active: 1137960 kB
Inactive: 608588 kB
HighTotal: 3276672 kB
HighFree: 1607744 kB
LowTotal: 807276 kB
LowFree: 590776 kB
SwapTotal: 2096440 kB
SwapFree: 2096440 kB
Dirty: 32 kB
Writeback: 0 kB
AnonPages: 523252 kB
Mapped: 93560 kB
Slab: 52880 kB
SReclaimable: 24652 kB
SUnreclaim: 28228 kB
PageTables: 2284 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 4138412 kB
Committed_AS: 1845072 kB
VmallocTotal: 118776 kB
VmallocUsed: 3964 kB
VmallocChunk: 112860 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
Hugepagesize: 2048 kB
For CPU utilization, you have to do a little work. Linux makes available overall CPU utilization since system start; this probably isn't what you are interested in. If you want to know what the CPU utilization was for the last second, or 10 seconds, then you need to query the information and calculate it yourself.
The information is available in /proc/stat, which is documented pretty well at http://www.linuxhowtos.org/System/procstat.htm; here is what it looks like on my 4-core box:
Anderson cxc # more /proc/stat
cpu 2329889 0 2364567 1063530460 9034 9463 96111 0
cpu0 572526 0 636532 265864398 2928 1621 6899 0
cpu1 590441 0 531079 265949732 4763 351 8522 0
cpu2 562983 0 645163 265796890 682 7490 71650 0
cpu3 603938 0 551790 265919440 660 0 9040 0
intr 37124247
ctxt 50795173133
btime 1218807985
processes 116889
procs_running 1
procs_blocked 0
First, you need to determine how many CPUs (or processors, or processing cores) are available in the system. To do this, count the number of 'cpuN' entries, where N starts at 0 and increments. Don't count the 'cpu' line, which is a combination of the cpuN lines. In my example, you can see cpu0 through cpu3, for a total of 4 processors. From now on, you can ignore cpu0..cpu3, and focus only on the 'cpu' line.
Next, you need to know that the fourth number in these lines is a measure of idle time, and thus the fourth number on the 'cpu' line is the total idle time for all processors since boot time. This time is measured in Linux "jiffies", which are 1/100 of a second each.
But you don't care about the total idle time; you care about the idle time in a given period, e.g., the last second. Do calculate that, you need to read this file twice, 1 second apart.Then you can do a diff of the fourth value of the line. For example, if you take a sample and get:
cpu 2330047 0 2365006 1063853632 9035 9463 96114 0
Then one second later you get this sample:
cpu 2330047 0 2365007 1063854028 9035 9463 96114 0
Subtract the two numbers, and you get a diff of 396, which means that your CPU had been idle for 3.96 seconds out of the last 1.00 second. The trick, of course, is that you need to divide by the number of processors. 3.96 / 4 = 0.99, and there is your idle percentage; 99% idle, and 1% busy.
In my code, I have a ring buffer of 360 entries, and I read this file every second. That lets me quickly calculate the CPU utilization for 1 second, 10 seconds, etc., all the way up to 1 hour.
For the process-specific information, you have to look in /proc/pid; if you don't care abut your pid, you can look in /proc/self.
CPU used by your process is available in /proc/self/stat. This is an odd-looking file consisting of a single line; for example:
19340 (whatever) S 19115 19115 3084 34816 19115 4202752 118200 607 0 0 770 384 2
7 20 0 77 0 266764385 692477952 105074 4294967295 134512640 146462952 321468364
8 3214683328 4294960144 0 2147221247 268439552 1276 4294967295 0 0 17 0 0 0 0
The important data here are the 13th and 14th tokens (0 and 770 here). The 13th token is the number of jiffies that the process has executed in user mode, and the 14th is the number of jiffies that the process has executed in kernel mode. Add the two together, and you have its total CPU utilization.
Again, you will have to sample this file periodically, and calculate the diff, in order to determine the process's CPU usage over time.
Edit: remember that when you calculate your process's CPU utilization, you have to take into account 1) the number of threads in your process, and 2) the number of processors in the system. For example, if your single-threaded process is using only 25% of the CPU, that could be good or bad. Good on a single-processor system, but bad on a 4-processor system; this means that your process is running constantly, and using 100% of the CPU cycles available to it.
For the process-specific memory information, you ahve to look at /proc/self/status, which looks like this:
Name: whatever
State: S (sleeping)
Tgid: 19340
Pid: 19340
PPid: 19115
TracerPid: 0
Uid: 0 0 0 0
Gid: 0 0 0 0
FDSize: 256
Groups: 0 1 2 3 4 6 10 11 20 26 27
VmPeak: 676252 kB
VmSize: 651352 kB
VmLck: 0 kB
VmHWM: 420300 kB
VmRSS: 420296 kB
VmData: 581028 kB
VmStk: 112 kB
VmExe: 11672 kB
VmLib: 76608 kB
VmPTE: 1244 kB
Threads: 77
SigQ: 0/36864
SigPnd: 0000000000000000
ShdPnd: 0000000000000000
SigBlk: fffffffe7ffbfeff
SigIgn: 0000000010001000
SigCgt: 20000001800004fc
CapInh: 0000000000000000
CapPrm: 00000000ffffffff
CapEff: 00000000fffffeff
Cpus_allowed: 0f
Mems_allowed: 1
voluntary_ctxt_switches: 6518
nonvoluntary_ctxt_switches: 6598
The entries that start with 'Vm' are the interesting ones:
The only item I'm not sure about is Swapspace currently used by my process. I don't know if this is available.
Just for the sake of completeness, we can use the operators [
and [[
:
set.seed(1)
df <- data.frame(v1 = runif(10), v2 = letters[1:10])
Several options
df[df[1] < 0.5 | df[2] == "g", ]
df[df[[1]] < 0.5 | df[[2]] == "g", ]
df[df["v1"] < 0.5 | df["v2"] == "g", ]
df$name is equivalent to df[["name", exact = FALSE]]
Using dplyr
:
library(dplyr)
filter(df, v1 < 0.5 | v2 == "g")
Using sqldf
:
library(sqldf)
sqldf('SELECT *
FROM df
WHERE v1 < 0.5 OR v2 = "g"')
Output for the above options:
v1 v2
1 0.26550866 a
2 0.37212390 b
3 0.20168193 e
4 0.94467527 g
5 0.06178627 j
If you're still having this problem, try this:
In Win7 MS has decided to comment the localhost line with that msg that says it's handled in dns. I'm still not exactly clear what they're getting at, except maybe that they're telling folks to use dns for localhost resolution instead of the hosts file. Probably safer that way, anyway.
There are a few ways to go about this. One option would be to use inputfile.read()
instead of inputfile.readlines()
- you'd need to write separate code to strip the first four lines, but if you want the final output as a single string anyway, this might make the most sense.
A second, simpler option would be to rejoin the strings after striping the first four lines with my_text = ''.join(my_text)
. This is a little inefficient, but if speed isn't a major concern, the code will be simplest.
Finally, if you actually want the output as a list of strings instead of a single string, you can just modify your data parser to iterate over the list. That might looks something like this:
def data_parser(lines, dic):
for i, j in dic.iteritems():
for (k, line) in enumerate(lines):
lines[k] = line.replace(i, j)
return lines
Not exactly answering your question, but I came across your question, while looking for an answer to an issue that I had. Maybe it will help somebody else.
My issue was that cookies were set in server response, but were not saved by the browser.
The server response came back with cookies set:
Set-Cookie:my_cookie=HelloWorld; Path=/; Expires=Wed, 15 Mar 2017 15:59:59 GMT
This is how I solved it.
I used fetch
in the client-side code. If you do not specify credentials: 'include'
in the fetch
options, cookies are neither sent to server nor saved by the browser, even though the server response sets cookies.
Example:
var headers = new Headers();
headers.append('Content-Type', 'application/json');
headers.append('Accept', 'application/json');
return fetch('/your/server_endpoint', {
method: 'POST',
mode: 'same-origin',
redirect: 'follow',
credentials: 'include', // Don't forget to specify this if you need cookies
headers: headers,
body: JSON.stringify({
first_name: 'John',
last_name: 'Doe'
})
})
I hope this helps somebody.
I got this error when I ran react-native run-ios --scheme="customscheme"
and the name of customscheme was misspelled.
Click handlers on anchor tags are a special case in jQuery.
I think you might be getting confused between the anchor's onclick event (known by the browser) and the click event of the jQuery object which wraps the DOM's notion of the anchor tag.
You can download the jQuery 1.3.2 source here.
The relevant sections of the source are lines 2643-2645 (I have split this out to multiple lines to make it easier to comprehend):
// Handle triggering native .onfoo handlers (and on links since we don't call .click() for links)
if (
(!elem[type] || (jQuery.nodeName(elem, 'a') && type == "click")) &&
elem["on"+type] &&
elem["on"+type].apply( elem, data ) === false
)
event.result = false;
In your css add a class:
.fa-clickable {
cursor:pointer;
outline:none;
}
Then add the class to the clickable fontawesome icons (also an id so you can differentiate the clicks):
<i class="fa fa-dribbble fa-4x fa-clickable" id="epd-dribble"></i>
<i class="fa fa-behance-square fa-4x fa-clickable" id="epd-behance"></i>
<i class="fa fa-linkedin-square fa-4x fa-clickable" id="epd-linkedin"></i>
<i class="fa fa-twitter-square fa-4x fa-clickable" id="epd-twitter"></i>
<i class="fa fa-facebook-square fa-4x fa-clickable" id="epd-facebook"></i>
Then add a handler in your jQuery
$(document).on("click", "i", function(){
switch (this.id) {
case "epd-dribble":
// do stuff
break;
// add additional cases
}
});
You could try using df['column'].str.
and then use any string function. Pandas documentation includes those like split
=if(a1="","1","0")
In this formula if the cell is empty then the result would be 1
else it would be 0
I am assuming that you have enough permissions to create this directory.
To fix your problem, you can either ssh to some other location:
ssh [email protected]
and accept new key - it will create directory ~/.ssh
and known_hosts
underneath, or simply create it manually using
mkdir ~/.ssh
chmod 700 ~/.ssh
Note that chmod 700
is an important step!
After that, ssh-keygen should work without complaints.
If the performance hit of the default constructor isn't an issue, the please, for the love of god, go with the more readable version.
:)
Your element is not an array, however your cart needs to be an array in order to support many element objects. Code example:
var element = {}, cart = [];
element.id = id;
element.quantity = quantity;
cart.push(element);
If you want cart to be an array of objects in the form { element: { id: 10, quantity: 1} }
then perform:
var element = {}, cart = [];
element.id = id;
element.quantity = quantity;
cart.push({element: element});
JSON.stringify()
was mentioned as a concern in the comment:
>> JSON.stringify([{a: 1}, {a: 2}])
"[{"a":1},{"a":2}]"
I know this has plenty of answers but since most of them are old (well, older), none is mentioning approach I grow very fond of really quick. In short:
Use functional components and hooks.
In longer:
Try to use as much functional components instead class ones especially for rendering, AND try to keep them as pure as possible (yes, data is dirty by default I know).
Two bluntly obvious benefits of functional components (there are more):
Quick proof for 2nd point - Isn't this absolutely disgusting?
constructor(props) {
super(props);
this.toggle= this.toggle.bind(this);
this.state = {
details: false
}
}
If you are using functional components for more then rendering you are gonna need the second part of great duo - hooks. Why are they better then lifecycle methods, what else can they do and much more would take me a lot of space to cover so I recommend you to listen to the man himself: Dan preaching the hooks
In this case you need only two hooks:
A callback hook conveniently named useCallback
. This way you are preventing the binding the function over and over when you re-render.
A state hook, called useState
, for keeping the state despite entire component being function and executing in its entirety (yes, this is possible due to magic of hooks). Within that hook you will store the value of toggle.
If you read to this part you probably wanna see all I have talked about in action and applied to original problem. Here you go: Demo
For those of you that want only to glance the component and WTF is this about, here you are:
const Item = () => {
// HOOKZ
const [isVisible, setIsVisible] = React.useState('hidden');
const toggle = React.useCallback(() => {
setIsVisible(isVisible === 'visible' ? 'hidden': 'visible');
}, [isVisible, setIsVisible]);
// RENDER
return (
<React.Fragment>
<div style={{visibility: isVisible}}>
PLACEHOLDER MORE INFO
</div>
<button onClick={toggle}>Details</button>
</React.Fragment>
)
};
PS: I wrote this in case many people land here with similar problem. Hopefully, they will like what I have shown here, at least well enough to google it a bit more. This is NOT me saying other answers are wrong, this is me saying that since the time they have been written, there is another way (IMHO, a better one) of dealing with this.
in_array()
does not work on multidimensional arrays. You could write a recursive function to do that for you:
function in_array_r($needle, $haystack, $strict = false) {
foreach ($haystack as $item) {
if (($strict ? $item === $needle : $item == $needle) || (is_array($item) && in_array_r($needle, $item, $strict))) {
return true;
}
}
return false;
}
Usage:
$b = array(array("Mac", "NT"), array("Irix", "Linux"));
echo in_array_r("Irix", $b) ? 'found' : 'not found';
For Swift 4, add as a Delegate to your class:
public protocol TimingDelegate: class {
var _TICK: Date?{ get set }
}
extension TimingDelegate {
var TICK: Date {
_TICK = Date()
return(_TICK)!
}
func TOCK(message: String) {
if (_TICK == nil){
print("Call 'TICK' first!")
}
if (message == ""){
print("\(Date().timeIntervalSince(_TICK!))")
}
else{
print("\(message): \(Date().timeIntervalSince(_TICK!))")
}
}
}
Add to our class:
class MyViewcontroller: UIViewController, TimingDelegate
Then add to your class:
var _TICK: Date?
When you want to time something, start with:
TICK
And end with:
TOCK("Timing the XXX routine")
You have in your module
import {Routes, RouterModule} from '@angular/router';
you have to export the module RouteModule
example:
@NgModule({
imports: [RouterModule.forChild(routes)],
exports: [RouterModule]
})
to be able to access the functionalities for all who import this module.
I tried the approaches given above, but these methods fail when dynamically the height of the content in one of the cols increases, it basically pushes the other cols down.
for me the basic table layout solution worked.
// Apply this to the enclosing row
.row-centered {
text-align: center;
display: table-row;
}
// Apply this to the cols within the row
.col-centered {
display: table-cell;
float: none;
vertical-align: top;
}
If you are looking for answer in string values , try this
var check = moment('date/utc format');
day = check.format('dddd') // => ('Monday' , 'Tuesday' ----)
month = check.format('MMMM') // => ('January','February.....)
year = check.format('YYYY') // => ('2012','2013' ...)
ADO Recordset has .State
property, you can check if its value is adStateClosed
or adStateOpen
If Not (rs Is Nothing) Then
If (rs.State And adStateOpen) = adStateOpen Then rs.Close
Set rs = Nothing
End If
Edit;
The reason not to check .State
against 1 or 0 is because even if it works 99.99% of the time, it is still possible to have other flags set which will cause the If statement fail the adStateOpen
check.
Edit2:
For Late binding without the ActiveX Data Objects referenced, you have few options. Use the value of adStateOpen constant from ObjectStateEnum
If Not (rs Is Nothing) Then
If (rs.State And 1) = 1 Then rs.Close
Set rs = Nothing
End If
Or you can define the constant yourself to make your code more readable (defining them all for a good example.)
Const adStateClosed As Long = 0 'Indicates that the object is closed.
Const adStateOpen As Long = 1 'Indicates that the object is open.
Const adStateConnecting As Long = 2 'Indicates that the object is connecting.
Const adStateExecuting As Long = 4 'Indicates that the object is executing a command.
Const adStateFetching As Long = 8 'Indicates that the rows of the object are being retrieved.
[...]
If Not (rs Is Nothing) Then
' ex. If (0001 And 0001) = 0001 (only open flag) -> true
' ex. If (1001 And 0001) = 0001 (open and retrieve) -> true
' This second example means it is open, but its value is not 1
' and If rs.State = 1 -> false, even though it is open
If (rs.State And adStateOpen) = adStateOpen Then
rs.Close
End If
Set rs = Nothing
End If
If you are updating to v28
change the compileSdkVersion to compileSdkVersion 28
„line 23. Is this div right? or must this be a section?“
Neither – there is a main
tag for that purpose, which is only allowed once per page and should be used as a wrapper for the main content (in contrast to a sidebar or a site-wide header).
<main>
<!-- The main content -->
</main>
http://www.w3.org/html/wg/drafts/html/master/grouping-content.html#the-main-element
You're looking for the function strcmp
, or strncmp
from string.h
.
Since strings are just arrays, you need to compare each character, so this function will do that for you:
if (strcmp(favoriteDairyProduct, "cheese") == 0)
{
printf("You like cheese too!");
}
else
{
printf("I like cheese more.");
}
Further reading: strcmp at cplusplus.com
The following regex will do what you want (as long as negative lookbehinds and lookaheads are supported), matching things properly; the only problem is that it matches individual characters (i.e. each match is a single character rather than all characters between two consecutive "bar"s), possibly resulting in a potential for high overhead if you're working with very long strings.
b(?!ar)|(?<!b)a|a(?!r)|(?<!ba)r|[^bar]
with your VARCHAR, you may also need to specify the length, or its usually good to
What about grabbing the text, making a sting of it, then putting it into the query witrh
String TableName = "ComplicatedTableNameHere";
EditText editText1 = (EditText) findViewById(R.id.EditTextIDhere);
String editTextString1 = editText1.getText().toString();
BROKEN DOWN
String TableName = "ComplicatedTableNameHere";
//sets the table name as a string so you can refer to TableName instead of writing out your table name everytime
EditText editText1 = (EditText) findViewById(R.id.EditTextIDhere);
//gets the text from your edit text fieldfield
//editText1 = your edit text name
//EditTextIDhere = the id of your text field
String editTextString1 = editText1.getText().toString();
//sets the edit text as a string
//editText1 is the name of the Edit text from the (EditText) we defined above
//editTextString1 = the string name you will refer to in future
then use
/* Insert data to a Table*/
myDB.execSQL("INSERT INTO "
+ TableName
+ " (Column_Name, Column_Name2, Column_Name3, Column_Name4)"
+ " VALUES ( "+EditTextString1+", 'Column_Value2','Column_Value3','Column_Value4');");
Hope this helps some what...
NOTE each string is within
'"+stringname+"'
its the 'and' that enable the multi line element of the srting, without it you just get the first line, not even sure if you get the whole line, it may just be the first word
I hope it will help someone else.
This error seems to occur also when you UNintentionally send an object to React child components.
Example of it is passing to child component new Date('....') as follows:
const data = {name: 'ABC', startDate: new Date('2011-11-11')}
...
<GenInfo params={data}/>
If you send it as value of a child component parameter you would be sending a complex Object and you may get the same error as stated above.
Check if you are passing something similar (that generates Object under the hood).
Here is my solution
[^0-9A-Z,\n]
This will remove all the digits, commas and new lines but select the middle space such as data set of
Yes, that is supported.
Check the documentation provided here for the supported keywords inside method names.
You can just define the method in the repository interface without using the @Query annotation and writing your custom query. In your case it would be as followed:
List<Inventory> findByIdIn(List<Long> ids);
I assume that you have the Inventory entity and the InventoryRepository interface. The code in your case should look like this:
The Entity
@Entity
public class Inventory implements Serializable {
private static final long serialVersionUID = 1L;
private Long id;
// other fields
// getters/setters
}
The Repository
@Repository
@Transactional
public interface InventoryRepository extends PagingAndSortingRepository<Inventory, Long> {
List<Inventory> findByIdIn(List<Long> ids);
}
This returns the last modified date and its age.
DateTime.Now.Subtract(System.IO.File.GetLastWriteTime(FilePathwithName).Date)
You can use functionality called Export Data-Tier Application which generates .bacpac
file consisting database schema and data.
On destination server, you can use Import Data-Tier Application option which creates and populates new database from pre-created .bacpac
file
If you want just to transfer database schema, you can use Extract Data-Tier Application for creating file and Deploy Data-Tier Application for deploying created database schema.
I've tried this process on different versions of SQL Server from SQL 2014 to SQL 2012 and from SQL 2014 to SQL 2008R2 and worked well.
This worked for me
/* Portrait */
@media only screen
and (min-device-width: 834px)
and (max-device-width: 834px)
and (orientation: portrait)
and (-webkit-min-device-pixel-ratio: 2) {
}
/* Landscape */
@media only screen
and (min-width: 1112px)
and (max-width: 1112px)
and (orientation: landscape)
and (-webkit-min-device-pixel-ratio: 2)
{
}
When you're doing it by code the trick is to call
WindowStyle = WindowStyle.None;
first and then
WindowState = WindowState.Maximized;
to get it to display over the Taskbar.
would take time to route through TeamViewer's servers (TeamViewer bypasses corporate Symmetric NATs by simply proxying traffic through their servers)
You'll find that TeamViewer rarely needs to relay traffic through their own servers. TeamViewer penetrates NAT and networks complicated by NAT using NAT traversal (I think it is UDP hole-punching, like Google's libjingle).
They do use their own servers to middle-man in order to do the handshake and connection set-up, but most of the time the relationship between client and server will be P2P (best case, when the hand-shake is successful). If NAT traversal fails, then TeamViewer will indeed relay traffic through its own servers.
I've only ever seen it do this when a client has been behind double-NAT, though.
tuxfiles.org holds a pretty good cheat sheet. I think there are a couple of points to learning the commands:
d$
), go a quick google search to see if you can find a command for it.Besides these tips, there are some basic concepts you should understand.
d$
. To highlight a line after a particular character use v$
. So notice that $
indicates you will be doing something to the end of the line from where your cursor currently is.u
is undo, and ctrl+r
is redo.3dd
will delete the line your cursor is on and the two lines that follow, similarly 3yy
will copy the line your cursor is on and the two lines that follow.:ls
to list the buffers, and :bn
, :bp
to cycle through them.:help
This is probably the best way to 'learn the ropes', and the rest of the commands you will learn through usage.I want to say something about the "G" status,
G: Changes on the repo were automatically merged into the working copy
I think the above definition is not cleary, it can generate a little confusion, because all files are automatically merged in to working copy, the correct one should be:
U = item (U)pdated to repository version
G = item’s local changes mer(G)ed with repository
C = item’s local changes (C)onflicted with repository
D = item (D)eleted from working copy
A = item (A)dded to working copy
Polling like this is definitely the least preferred solution.
I assume that you have another thread that will do something to make the condition true. There are several ways to synchronize threads. The easiest one in your case would be a notification via an Object:
Main thread:
synchronized(syncObject) {
try {
// Calling wait() will block this thread until another thread
// calls notify() on the object.
syncObject.wait();
} catch (InterruptedException e) {
// Happens if someone interrupts your thread.
}
}
Other thread:
// Do something
// If the condition is true, do the following:
synchronized(syncObject) {
syncObject.notify();
}
syncObject
itself can be a simple Object
.
There are many other ways of inter-thread communication, but which one to use depends on what precisely you're doing.
On http://www.synalysis.net/ you can get the hex editor I'm developing for the Mac - Synalyze It!. It costs 7 € / 40 € (Pro version) and offers some extra features like histogram, incremental search, support of many text encodings and interactive definition of a "grammar" for your file format.
The grammar helps to interpret the files and colors the hex view for easier analysis.
static void Main(string[] args)
{
AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
}
static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
throw new NotImplementedException();
}
Adding:
In some versions of iOS 9.x, Safari does not present the "iPhone" in navigator.userAgent
, but show it in navigator.platform
.
var isMobile = /Android|webOS|iPhone|iPad|iPod|BlackBerry/i.test(navigator.userAgent);
if(!isMobile){
isMobile=/iPhone|iPad|iPod/i.test(navigator.platform);
}
The fix for me was to go into Options when trying to Restore the database and change the path to the new path. Here is the screenshot
The format string attack on printf you mentioned isn't specific to the "%x" formatting - in any case where printf has more formatting parameters than passed variables, it will read values from the stack that do not belong to it. You will get the same issue with %d for example. %x is useful when you want to see those values as hex.
As explained in previous answers, %08x will produce a 8 digits hex number, padded by preceding zeros.
Using the formatting in your code example in printf, with no additional parameters:
printf ("%08x %08x %08x %08x");
Will fetch 4 parameters from the stack and display them as 8-digits padded hex numbers.
I was basically looking for the Reflection answer by @ArthurC
Just to extend his answer a little bit, you can make it even better by having a generic function:
// If you want for a specific Enum
private static string EnumStringValue(GroupTypes e)
{
return EnumStringValue<GroupTypes>(e);
}
// Generic
private static string EnumStringValue<T>(T enumInstance)
{
return Enum.GetName(typeof(T), enumInstance);
}
Then you can just wrap whatever you have
EnumStringValue(GroupTypes.TheGroup) // if you incorporate the top part
or
EnumStringValue<GroupTypes>(GroupTypes.TheGroup) // if you just use the generic
Try:
select * from information_schema.tables
See: http://dev.mysql.com/doc/refman/5.0/en/information-schema.html
If you are trying to do something fast, efficient and readable, use a standard if...then...else structure like this:
var d = this.dealer;
if (d < 12) {
if (d < 5) {
alert("less than five");
}else if (d < 9) {
alert("between 5 and 8");
}else{
alert("between 9 and 11");
}
}else{
alert("none");
}
If you want to obfuscate it and make it awful (but small), try this:
var d=this.dealer;d<12?(d<5?alert("less than five"):d<9?alert("between 5 and 8"):alert("between 9 and 11")):alert("none");
BTW, the above code is a JavaScript if...then...else shorthand statement. It is a great example of how NOT to write code unless obfuscation or code minification is the goal. Be aware that code maintenance can be an issue if written this way. Very few people can easily read through it, if at all. The code size, however, is 50% smaller than the standard if...then...else without any loss of performance. This means that in larger codebases, minification like this can greatly speed code delivery across bandwidth constrained or high latency networks.
This, however, should not be considered a good answer. It is just an example of what CAN be done, not what SHOULD be done.
The only visible result I was able to understand was first to connect with the user I wanted to get the rights, then with the following query:
SELECT GRANTEE, PRIVILEGE, TABLE_NAME FROM USER_TAB_PRIVS;
in linux , Just go to "/var/lib/mysql" right click and (open as adminstrator), find the folder corresponding to your database name inside mysql folder and delete it. that's it. Database is dropped.
It's called a shebang, and tells the parent shell which interpreter should be used to execute the script.
#!/bin/sh <--------- bourne shell compatible script
#!/usr/bin/perl <-- perl script
#!/usr/bin/php <--- php script
#!/bin/false <------ do-nothing script, because false returns immediately anyways.
Most scripting languages tend to interpret a line starting with #
as comment and will ignore the following !/usr/bin/whatever
portion, which might otherwise cause a syntax error in the interpreted language.
Calculating point around circumference of circle given distance travelled.
For comparison...
This may be useful in Game AI when moving around a solid object in a direct path.
public static Point DestinationCoordinatesArc(Int32 startingPointX, Int32 startingPointY,
Int32 circleOriginX, Int32 circleOriginY, float distanceToMove,
ClockDirection clockDirection, float radius)
{
// Note: distanceToMove and radius parameters are float type to avoid integer division
// which will discard remainder
var theta = (distanceToMove / radius) * (clockDirection == ClockDirection.Clockwise ? 1 : -1);
var destinationX = circleOriginX + (startingPointX - circleOriginX) * Math.Cos(theta) - (startingPointY - circleOriginY) * Math.Sin(theta);
var destinationY = circleOriginY + (startingPointX - circleOriginX) * Math.Sin(theta) + (startingPointY - circleOriginY) * Math.Cos(theta);
// Round to avoid integer conversion truncation
return new Point((Int32)Math.Round(destinationX), (Int32)Math.Round(destinationY));
}
/// <summary>
/// Possible clock directions.
/// </summary>
public enum ClockDirection
{
[Description("Time moving forwards.")]
Clockwise,
[Description("Time moving moving backwards.")]
CounterClockwise
}
private void ButtonArcDemo_Click(object sender, EventArgs e)
{
Brush aBrush = (Brush)Brushes.Black;
Graphics g = this.CreateGraphics();
var startingPointX = 125;
var startingPointY = 75;
for (var count = 0; count < 62; count++)
{
var point = DestinationCoordinatesArc(
startingPointX: startingPointX, startingPointY: startingPointY,
circleOriginX: 75, circleOriginY: 75,
distanceToMove: 5,
clockDirection: ClockDirection.Clockwise, radius: 50);
g.FillRectangle(aBrush, point.X, point.Y, 1, 1);
startingPointX = point.X;
startingPointY = point.Y;
// Pause to visually observe/confirm clock direction
System.Threading.Thread.Sleep(35);
Debug.WriteLine($"DestinationCoordinatesArc({point.X}, {point.Y}");
}
}
I was able to resolve the issue, the resource was in my project directories but when the junit utility tries to load it, it was returning an error of MissingResourceException. And the reason was the resource was in the not on the classpath of the test class package so when I added the cfg/ folder to my classpath path entry in eclipse and set the output directory in the build conf to the same class package the issue was resolved.
When you try this approach just make sure, the classpath conf file shows the classpath entry of the resource directory (eg. cfg/)
Guava also has Base64 (among other encodings and incredibly useful stuff)
select * from person where dob between '2011-01-01 00:00:00' and '2011-01-31 23:59:59'
Python uses "Duck typing", i.e. if a variable kwaks like a duck, it must be a duck. In your case, you probably want it to be iterable, or you want to access the item at a certain index. You should just do this: i.e. use the object in for var:
or var[idx]
inside a try
block, and if you get an exception it wasn't a duck...
I came across over the following post: http://blogs.msdn.com/b/raulperez/archive/2010/03/19/c-intellisense-options.aspx
The issue is that the "IntelliSense" option in c++ is disabled. This link explains about the IntelliSense database configuration and options.
After enabling the database you must close and reopen visual studio for autocomplete use 'ctrl'+'space'
In my experience window.requestAnimationFrame
wasn't enough to ensure that the DOM had been fully rendered / reflow-complete from componentDidMount
. I have code running that accesses the DOM immediately after a componentDidMount
call and using solely window.requestAnimationFrame
would result in the element being present in the DOM; however, updates to the element's dimensions aren't reflected yet since a reflow hasn't yet occurred.
The only truly reliable way for this to work was to wrap my method in a setTimeout
and a window.requestAnimationFrame
to ensure React's current call stack gets cleared before registering for the next frame's render.
function onNextFrame(callback) {
setTimeout(function () {
requestAnimationFrame(callback)
})
}
If I had to speculate on why this is occurring / necessary I could see React batching DOM updates and not actually applying the changes to the DOM until after the current stack is complete.
Ultimately, if you're using DOM measurements in the code you're firing after the React callbacks you'll probably want to use this method.
I got this to work on all modern browsers, including IE9|IE8|IE7. The following code will open your YouTube video in a jQuery UI dialog modal, autoplay the video from 0:00 on dialog open, and stop video on dialog close.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js" type="text/javascript"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.14/jquery-ui.min.js" type="text/javascript"></script>
<script src="http://www.google.com/jsapi" type="text/javascript"></script>
<script type="text/javascript">
google.load("swfobject", "2.1");
function _run() {
/* YouTube player embed for modal dialog */
// The video to load.
var videoID = "INSERT YOUR YOUTUBE VIDEO ID HERE"
// Lets Flash from another domain call JavaScript
var params = { allowScriptAccess: "always" };
// The element id of the Flash embed
var atts = { id: "ytPlayer" };
// All of the magic handled by SWFObject (http://code.google.com/p/swfobject/)
swfobject.embedSWF("http://www.youtube.com/v/" + videoID + "?version=3&enablejsapi=1&playerapiid=player1&autoplay=1",
"videoDiv", "879", "520", "9", null, null, params, atts);
}
google.setOnLoadCallback(_run);
$(function () {
$("#big-video").dialog({
autoOpen: false,
close: function (event, ui) {
ytPlayer.stopVideo() // stops video/audio on dialog close
},
modal: true,
open: function (event, ui) {
ytPlayer.seekTo(0) // resets playback to beginning of video and then plays video
}
});
$("#big-video-opener").click(function () {
$("#big-video").dialog("open");
return false;
});
});
</script>
<div id="big-video" title="Video">
<div id="videoDiv">Loading...</div>
</div>
<a id="big-video-opener" class="button" href="#">Watch the short video</a>
If you want to use Android's default drawable, you can use @android:drawable/ic_menu_search
like this:
<EditText android:id="@+id/inputSearch"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:drawableLeft="@android:drawable/ic_menu_search"
android:hint="Search product.."
android:inputType="textVisiblePassword"/>
Mesos and Kubernetes can both be used to manage a cluster of machines and abstract away the hardware.
Mesos, by design, doesn't provide you with a scheduler (to decide where and when to run processes and what to do if the process fails), you can use something like Marathon or Chronos, or write your own.
Kubernetes will do scheduling for you out of the box, and can be used as a scheduler for Mesos (please correct me if I'm wrong here!) which is where you can use them together. Mesos can have multiple schedulers sharing the same cluster, so in theory you could run kubernetes and chronos together on the same hardware.
Super simplistically: if you want control over how your containers are scheduled, go for Mesos, otherwise Kubernetes rocks.
img
in the center of its parent.img
is an inline element, text-center
aligns inline elements in the center of its container should the container be a block
element. <link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/css/bootstrap.css" rel="stylesheet"/>_x000D_
<div class="container mt-5">_x000D_
<div class="row">_x000D_
<div class="col text-center">_x000D_
<img src="https://upload.wikimedia.org/wikipedia/en/8/80/Wikipedia-logo-v2.svg" alt="" class="img-fluid">_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
mx-auto
centers block
elements. In order to so, change display
of the img from inline
to block
with d-block
class. <link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/css/bootstrap.css" rel="stylesheet"/>_x000D_
<div class="container mt-5">_x000D_
<div class="row">_x000D_
<div class="col">_x000D_
<img src="https://upload.wikimedia.org/wikipedia/en/8/80/Wikipedia-logo-v2.svg" alt="" class="img-fluid d-block mx-auto">_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
d-flex
and justify-content-center
on its parent. <link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/css/bootstrap.css" rel="stylesheet"/>_x000D_
<div class="container mt-5">_x000D_
<div class="row">_x000D_
<div class="col d-flex justify-content-center">_x000D_
<img src="https://upload.wikimedia.org/wikipedia/en/8/80/Wikipedia-logo-v2.svg" alt="" class="img-fluid">_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
Try the following Query:
select distinct Users,
STUFF(
(
select ', ' + d.Department FROM @temp d
where t.Users=d.Users
group by d.Department for xml path('')
), 1, 2, '') as Departments
from @temp t
Declare @temp Table(
ID int,
Users varchar(50),
Department varchar(50)
)
insert into @temp
(ID,Users,Department)
values
(1,'User1','Admin')
insert into @temp
(ID,Users,Department)
values
(2,'User1','Accounts')
insert into @temp
(ID,Users,Department)
values
(3,'User2','Finance')
insert into @temp
(ID,Users,Department)
values
(4,'User3','Sales')
insert into @temp
(ID,Users,Department)
values
(5,'User3','Finance')
select distinct Users,
STUFF(
(
select ', ' + d.Department FROM @temp d
where t.Users=d.Users
group by d.Department for xml path('')
), 1, 2, '') as Departments
from @temp t
you can also introspect all HTTP traffic running over your tunnels using ngrok
, then you can expose using ngrok http --host-header=rewrite 4200
Use this in Activity:
private Context context = this;
........
if(Utils.isInternetAvailable(context){
Utils.showToast(context, "toast");
}
..........
in Utils:
public class Utils {
public static boolean isInternetAvailable(Context context) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
return cm.getActiveNetworkInfo() != null && cm.getActiveNetworkInfo().isConnected();
}
}
A few wrinkles that I don't see being addressed in other answers:
Here's a way to get start and end positions as offsets to the element's textContent value:
// node_walk: walk the element tree, stop when func(node) returns false
function node_walk(node, func) {
var result = func(node);
for(node = node.firstChild; result !== false && node; node = node.nextSibling)
result = node_walk(node, func);
return result;
};
// getCaretPosition: return [start, end] as offsets to elem.textContent that
// correspond to the selected portion of text
// (if start == end, caret is at given position and no text is selected)
function getCaretPosition(elem) {
var sel = window.getSelection();
var cum_length = [0, 0];
if(sel.anchorNode == elem)
cum_length = [sel.anchorOffset, sel.extentOffset];
else {
var nodes_to_find = [sel.anchorNode, sel.extentNode];
if(!elem.contains(sel.anchorNode) || !elem.contains(sel.extentNode))
return undefined;
else {
var found = [0,0];
var i;
node_walk(elem, function(node) {
for(i = 0; i < 2; i++) {
if(node == nodes_to_find[i]) {
found[i] = true;
if(found[i == 0 ? 1 : 0])
return false; // all done
}
}
if(node.textContent && !node.firstChild) {
for(i = 0; i < 2; i++) {
if(!found[i])
cum_length[i] += node.textContent.length;
}
}
});
cum_length[0] += sel.anchorOffset;
cum_length[1] += sel.extentOffset;
}
}
if(cum_length[0] <= cum_length[1])
return cum_length;
return [cum_length[1], cum_length[0]];
}
There are two solutions to fix this:
clear:both
after the last floated tag. This works good.overflow: hidden
.bashrc
is not sourced when you log in using SSH. You need to source it in your .bash_profile
like this:
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
You can use Date.parse(), but the input formats that it accepts are implementation-dependent. However, if you can convert the date to ISO format (YYYY-MM-DD), most implementations should understand it.
Code::Blocks is cross-platform, using the wxWidgets library. It's the one I use.
Easier way for me is to switch to R1C1
notation and just use R[-1]C1
and switch back when done.
You need a little statistical knowledge to see this. R squared between two vectors is just the square of their correlation. So you can define you function as:
rsq <- function (x, y) cor(x, y) ^ 2
Sandipan's answer will return you exactly the same result (see the following proof), but as it stands it appears more readable (due to the evident $r.squared
).
Basically we fit a linear regression of y
over x
, and compute the ratio of regression sum of squares to total sum of squares.
lemma 1: a regression y ~ x
is equivalent to y - mean(y) ~ x - mean(x)
lemma 2: beta = cov(x, y) / var(x)
lemma 3: R.square = cor(x, y) ^ 2
R squared between two arbitrary vectors x
and y
(of the same length) is just a goodness measure of their linear relationship. Think twice!! R squared between x + a
and y + b
are identical for any constant shift a
and b
. So it is a weak or even useless measure on "goodness of prediction". Use MSE or RMSE instead:
I agree with 42-'s comment:
The R squared is reported by summary functions associated with regression functions. But only when such an estimate is statistically justified.
R squared can be a (but not the best) measure of "goodness of fit". But there is no justification that it can measure the goodness of out-of-sample prediction. If you split your data into training and testing parts and fit a regression model on the training one, you can get a valid R squared value on training part, but you can't legitimately compute an R squared on the test part. Some people did this, but I don't agree with it.
Here is very extreme example:
preds <- 1:4/4
actual <- 1:4
The R squared between those two vectors is 1. Yes of course, one is just a linear rescaling of the other so they have a perfect linear relationship. But, do you really think that the preds
is a good prediction on actual
??
Thanks for your comments 1, 2 and your answer of details.
You probably misunderstood the procedure. Given two vectors x
and y
, we first fit a regression line y ~ x
then compute regression sum of squares and total sum of squares. It looks like you skip this regression step and go straight to the sum of square computation. That is false, since the partition of sum of squares does not hold and you can't compute R squared in a consistent way.
As you demonstrated, this is just one way for computing R squared:
preds <- c(1, 2, 3)
actual <- c(2, 2, 4)
rss <- sum((preds - actual) ^ 2) ## residual sum of squares
tss <- sum((actual - mean(actual)) ^ 2) ## total sum of squares
rsq <- 1 - rss/tss
#[1] 0.25
But there is another:
regss <- sum((preds - mean(preds)) ^ 2) ## regression sum of squares
regss / tss
#[1] 0.75
Also, your formula can give a negative value (the proper value should be 1 as mentioned above in the Warning section).
preds <- 1:4 / 4
actual <- 1:4
rss <- sum((preds - actual) ^ 2) ## residual sum of squares
tss <- sum((actual - mean(actual)) ^ 2) ## total sum of squares
rsq <- 1 - rss/tss
#[1] -2.375
I had never expected that this answer could eventually be so long when I posted my initial answer 2 years ago. However, given the high views of this thread, I feel obliged to add more statistical details and discussions. I don't want to mislead people that just because they can compute an R squared so easily, they can use R squared everywhere.
this is a working copy of my code check it, how to retrive day name from date in sql
CREATE Procedure [dbo].[proc_GetProjectDeploymentTimeSheetData]
@FromDate date,
@ToDate date
As
Begin
select p.ProjectName + ' ( ' + st.Time +' '+'-'+' '+et.Time +' )' as ProjectDeatils,
datename(dw,pts.StartDate) as 'Day'
from
ProjectTimeSheet pts
join Projects p on pts.ProjectID=p.ID
join Timing st on pts.StartTimingId=st.Id
join Timing et on pts.EndTimingId=et.Id
where pts.StartDate >= @FromDate
and pts.StartDate <= @ToDate
END
Try this::
sb_trim = Regex.Replace(stw, @"(\D+)\s+\$([\d,]+)\.\d+\s+(.)",
m => string.Format(
"{0},{1},{2}",
m.Groups[1].Value,
m.Groups[2].Value.Replace(",", string.Empty),
m.Groups[3].Value));
This is about as clean an answer as you'll get, at least with regexes.
(\D+)
: First capture group. One or more non-digit characters.\s+\$
: One or more spacing characters, then a literal dollar sign ($).([\d,]+)
: Second capture group. One or more digits and/or commas.\.\d+
: Decimal point, then at least one digit.\s+
: One or more spacing characters.(.)
: Third capture group. Any non-line-breaking character.The second capture group additionally needs to have its commas stripped. You could do this with another regex, but it's really unnecessary and bad for performance. This is why we need to use a lambda expression and string format to piece together the replacement. If it weren't for that, we could just use this as the replacement, in place of the lambda expression:
"$1,$2,$3"
The problem might be with service mysql-server and apache2 running while system start. You can do the following.
sudo /opt/lampp/lampp stop
To stop already running default services
sudo service apache2 stop
sudo service mysql stop
To remove the services completely, so that they won't create problem in next system-restart, If you are in ubuntu(debian)
sudo apt-get remove apache2
sudo apt-get remove mysql-server
If you are in redhat or other, You could use yum
or similar command to uninstall the services
Then start the lampp again
sudo /opt/lampp/lampp start
Also, don't install mysql-server in the system, because it might start in system start-up, occupy the port, and create problem for mysql of lampp.
Removing the name from your binding will make it apply to all endpoints, and should produce the desired results. As so:
<services>
<service name="Service.IService">
<clear />
<endpoint binding="basicHttpBinding" contract="Service.IService" />
</service>
</services>
<bindings>
<basicHttpBinding>
<binding maxBufferSize="2147483647" maxReceivedMessageSize="2147483647">
<readerQuotas maxDepth="32" maxStringContentLength="2147483647"
maxArrayLength="16348" maxBytesPerRead="4096" maxNameTableCharCount="16384" />
</binding>
</basicHttpBinding>
<webHttpBinding>
<binding maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" />
</webHttpBinding>
</bindings>
Also note that I removed the bindingConfiguration
attribute from the endpoint node. Otherwise you would get an exception.
This same solution was found here : Problem with large requests in WCF
Here's one way to solve it. Remove non-numeric characters then cast it as a number.
cast(regexp_replace('0419 853 694', '[^0-9]+', '') as number)
This one shows how to print only selected element on the page with dpi/resolution
adjustments
HTML:
<html>
<body>
<header>This is the header</header>
<div id="content">
This is the element you only want to capture
</div>
<button id="print">Download Pdf</button>
<footer>This is the footer</footer>
</body>
</html>
CSS:
body {
background: beige;
}
header {
background: red;
}
footer {
background: blue;
}
#content {
background: yellow;
width: 70%;
height: 100px;
margin: 50px auto;
border: 1px solid orange;
padding: 20px;
}
JS:
$('#print').click(function() {
var w = document.getElementById("content").offsetWidth;
var h = document.getElementById("content").offsetHeight;
html2canvas(document.getElementById("content"), {
dpi: 300, // Set to 300 DPI
scale: 3, // Adjusts your resolution
onrendered: function(canvas) {
var img = canvas.toDataURL("image/jpeg", 1);
var doc = new jsPDF('L', 'px', [w, h]);
doc.addImage(img, 'JPEG', 0, 0, w, h);
doc.save('sample-file.pdf');
}
});
});
If you can change the format of your placeholder, you could use String.format()
. If not, you could also replace it as pre-processing.
String.format("hello %s!", "world");
More information in this other thread.
Here is code you can get url segment.
{{ Request::segment(1) }}
If you don't want the data to be escaped then use {!! !!} else use {{ }}.
{!! Request::segment(1) !!}
my issue with ANR , after much work i found out that a thread was calling a resource that did not exist in the layout, instead of returning an exception , i got ANR ...
There's no for each in
in the version of ECMAScript supported by Node.js, only supported by firefox currently.
The important thing to note is that JavaScript versions are only relevant to Gecko (Firefox's engine) and Rhino (which is always a few versions behind). Node uses V8 which follows ECMAScript specifications
The effect you want is to treat the NULL as the largest possible date then replace it with NULL again upon completion:
SELECT RecordId, MIN(StartDate), NULLIF(MAX(COALESCE(EndDate,'9999-12-31')),'9999-12-31')
FROM tmp GROUP BY RecordId
Per your fiddle this will return the exact results you specify under all conditions.
The Timer function in VBA gives you the number of seconds elapsed since midnight, to 1/100 of a second.
Dim t as single
t = Timer
'code
MsgBox Timer - t
When I was faced with the same problem I just had to clean my solution before rebuilding. That took care of it for me.
Try this code for disabling inspect element option
jQuery(document).ready(function() {
function disableSelection(e) {
if (typeof e.onselectstart != "undefined") e.onselectstart = function() {
return false
};
else if (typeof e.style.MozUserSelect != "undefined") e.style.MozUserSelect = "none";
else e.onmousedown = function() {
return false
};
e.style.cursor = "default"
}
window.onload = function() {
disableSelection(document.body)
};
window.addEventListener("keydown", function(e) {
if (e.ctrlKey && (e.which == 65 || e.which == 66 || e.which == 67 || e.which == 70 || e.which == 73 || e.which == 80 || e.which == 83 || e.which == 85 || e.which == 86)) {
e.preventDefault()
}
});
document.keypress = function(e) {
if (e.ctrlKey && (e.which == 65 || e.which == 66 || e.which == 70 || e.which == 67 || e.which == 73 || e.which == 80 || e.which == 83 || e.which == 85 || e.which == 86)) {}
return false
};
document.onkeydown = function(e) {
e = e || window.event;
if (e.keyCode == 123 || e.keyCode == 18) {
return false
}
};
document.oncontextmenu = function(e) {
var t = e || window.event;
var n = t.target || t.srcElement;
if (n.nodeName != "A") return false
};
document.ondragstart = function() {
return false
};
});
Both answers are correct. If you user .TO -method then the semicolumn is OK - but not for the addrecipients-method. There you need to split, e.g. :
Dim Splitter() As String
Splitter = Split(AddrMail, ";")
For Each Dest In Splitter
.Recipients.Add (Trim(Dest))
Next
I use Ctrl-b + q which makes it flash number for each pane, redrawing them on the way.
You need to use LogLevel rewrite:trace3
to your httpd.conf
in newer version
http://httpd.apache.org/docs/2.4/mod/mod_rewrite.html#logging
The best way I found so far is to go to the Oauth playground here: https://developers.google.com/oauthplayground/
In the HTTP header for the REST API request, add: "Authorization: Bearer ". Here, Authorization is the key, and "Bearer ". For example: "Authorization: Bearer za29.KluqA3vRtZChWfJDabcdefghijklmnopqrstuvwxyz6nAZ0y6ElzDT3yH3MT5"
os.path.normpath(pathname)
should also be mentioned as it converts /
path separators into \
separators on Windows. It also collapses redundant uplevel references... i.e., A/B
and A/foo/../B
and A/./B
all become A/B
. And if you are Windows, these all become A\B
.
For background pushes in iOS13, you must set below parameters:
apns-priority = 5
apns-push-type = background
//Required for WatchOS
//Highly recommended for Other platforms
The video link: https://developer.apple.com/videos/play/wwdc2019/707/
You can try use in javascript:
window.onload = function() {
alert("let's go!");
}
Its a good practice separate javascript of html
There are no PowerShell-native commands for Base64 conversion - yet (as of PowerShell [Core] 7.1), but adding dedicated cmdlets has been suggested.
For now, direct use of .NET is needed.
Important:
Base64 encoding is an encoding of binary data using bytes whose values are constrained to a well-defined 64-character subrange of the ASCII character set representing printable characters, devised at a time when sending arbitrary bytes was problematic, especially with the high bit set (byte values > 0x7f).
Therefore, you must always specify explicitly what character encoding the Base64 bytes do / should represent.
Ergo:
on converting TO Base64, you must first obtain a byte representation of the string you're trying to encode using the character encoding the consumer of the Base64 string expects.
on converting FROM Base64, you must interpret the resultant array of bytes as a string using the same encoding that was used to create the Base64 representation.
Examples:
Note:
The following examples convert to and from UTF-8 encoded strings:
To convert to and from UTF-16LE ("Unicode") instead, substitute [Text.Encoding]::Unicode
for [Text.Encoding]::UTF8
Convert TO Base64:
PS> [Convert]::ToBase64String([Text.Encoding]::UTF8.GetBytes('Motörhead'))
TW90w7ZyaGVhZA==
Convert FROM Base64:
PS> [Text.Encoding]::Utf8.GetString([Convert]::FromBase64String('TW90w7ZyaGVhZA=='))
Motörhead
I was able to accomplish this with VBA in Excel 2013. No special editors needed. All you need is the Visual Basic code editor which can be accessed on the Developer tab. The Developer tab is not visible by default so it needs to be enabled in File>Options>Customize Ribbon. On the Developer tab, click the Visual Basic button. The code editor will launch. Right click in the Project Explorer pane on the left. Click the insert menu and choose module. Add both subs below to the new module.
Sub LoadCustRibbon()
Dim hFile As Long
Dim path As String, fileName As String, ribbonXML As String, user As String
hFile = FreeFile
user = Environ("Username")
path = "C:\Users\" & user & "\AppData\Local\Microsoft\Office\"
fileName = "Excel.officeUI"
ribbonXML = "<mso:customUI xmlns:mso='http://schemas.microsoft.com/office/2009/07/customui'>" & vbNewLine
ribbonXML = ribbonXML + " <mso:ribbon>" & vbNewLine
ribbonXML = ribbonXML + " <mso:qat/>" & vbNewLine
ribbonXML = ribbonXML + " <mso:tabs>" & vbNewLine
ribbonXML = ribbonXML + " <mso:tab id='reportTab' label='Reports' insertBeforeQ='mso:TabFormat'>" & vbNewLine
ribbonXML = ribbonXML + " <mso:group id='reportGroup' label='Reports' autoScale='true'>" & vbNewLine
ribbonXML = ribbonXML + " <mso:button id='runReport' label='PTO' " & vbNewLine
ribbonXML = ribbonXML + "imageMso='AppointmentColor3' onAction='GenReport'/>" & vbNewLine
ribbonXML = ribbonXML + " </mso:group>" & vbNewLine
ribbonXML = ribbonXML + " </mso:tab>" & vbNewLine
ribbonXML = ribbonXML + " </mso:tabs>" & vbNewLine
ribbonXML = ribbonXML + " </mso:ribbon>" & vbNewLine
ribbonXML = ribbonXML + "</mso:customUI>"
ribbonXML = Replace(ribbonXML, """", "")
Open path & fileName For Output Access Write As hFile
Print #hFile, ribbonXML
Close hFile
End Sub
Sub ClearCustRibbon()
Dim hFile As Long
Dim path As String, fileName As String, ribbonXML As String, user As String
hFile = FreeFile
user = Environ("Username")
path = "C:\Users\" & user & "\AppData\Local\Microsoft\Office\"
fileName = "Excel.officeUI"
ribbonXML = "<mso:customUI xmlns:mso=""http://schemas.microsoft.com/office/2009/07/customui"">" & _
"<mso:ribbon></mso:ribbon></mso:customUI>"
Open path & fileName For Output Access Write As hFile
Print #hFile, ribbonXML
Close hFile
End Sub
Call LoadCustRibbon sub in the Wookbook open even and call the ClearCustRibbon sub in the Before_Close Event of the ThisWorkbook code file.
Dim sSheetName As String
Dim sConnection As String
Dim dtTablesList As DataTable
Dim oleExcelCommand As OleDbCommand
Dim oleExcelReader As OleDbDataReader
Dim oleExcelConnection As OleDbConnection
sConnection = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Test.xls;Extended Properties=""Excel 12.0;HDR=No;IMEX=1"""
oleExcelConnection = New OleDbConnection(sConnection)
oleExcelConnection.Open()
dtTablesList = oleExcelConnection.GetSchema("Tables")
If dtTablesList.Rows.Count > 0 Then
sSheetName = dtTablesList.Rows(0)("TABLE_NAME").ToString
End If
dtTablesList.Clear()
dtTablesList.Dispose()
If sSheetName <> "" Then
oleExcelCommand = oleExcelConnection.CreateCommand()
oleExcelCommand.CommandText = "Select * From [" & sSheetName & "]"
oleExcelCommand.CommandType = CommandType.Text
oleExcelReader = oleExcelCommand.ExecuteReader
nOutputRow = 0
While oleExcelReader.Read
End While
oleExcelReader.Close()
End If
oleExcelConnection.Close()
Edit: 2013.01.15 - If your server will support it, use martinstoeckli's solution instead.
Everyone wants to make this more complicated than it is. The crypt() function does most of the work.
function blowfishCrypt($password,$cost)
{
$chars='./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
$salt=sprintf('$2y$%02d$',$cost);
//For PHP < PHP 5.3.7 use this instead
// $salt=sprintf('$2a$%02d$',$cost);
//Create a 22 character salt -edit- 2013.01.15 - replaced rand with mt_rand
mt_srand();
for($i=0;$i<22;$i++) $salt.=$chars[mt_rand(0,63)];
return crypt($password,$salt);
}
Example:
$hash=blowfishCrypt('password',10); //This creates the hash
$hash=blowfishCrypt('password',12); //This creates a more secure hash
if(crypt('password',$hash)==$hash){ /*ok*/ } //This checks a password
I know it should be obvious, but please don't use 'password' as your password.
IIRC ...
setSize
sets the size of the component.
setPreferredSize
sets the preferred size.
The Layoutmanager will try to arrange that much space for your component.
It depends on whether you're using a layout manager or not ...
exec does not execute a command in your shell
try
Process p = Runtime.getRuntime().exec(new String[]{"csh","-c","cat /home/narek/pk.txt"});
instead.
EDIT:: I don't have csh on my system so I used bash instead. The following worked for me
Process p = Runtime.getRuntime().exec(new String[]{"bash","-c","ls /home/XXX"});
To add to the above answers, there's a good article: Useful JVM Flags – Part 8 (GC Logging) by Patrick Peschlow.
A brief excerpt:
The flag -XX:+PrintGC
(or the alias -verbose:gc
) activates the “simple” GC logging mode
By default the GC log is written to stdout. With -Xloggc:<file>
we may instead specify an output file. Note that this flag implicitly sets -XX:+PrintGC
and -XX:+PrintGCTimeStamps
as well.
If we use -XX:+PrintGCDetails
instead of -XX:+PrintGC
, we activate the “detailed” GC logging mode which differs depending on the GC algorithm used.
With -XX:+PrintGCTimeStamps
a timestamp reflecting the real time passed in seconds since JVM start is added to every line.
If we specify -XX:+PrintGCDateStamps
each line starts with the absolute date and time.
I think I know what may cause this error.
In google chrome there is an in-built feature to prevent ddos attacks for google chrome extensions.
When ajax requests continuously return 500+ status errors, it starts to throttle the requests.
Hence it is possible to receive status 0 on following requests.
Here's a different approach:
1) Use the multiplication character: ×
×
2) Hide half of it with overflow:hidden
3) Then add a triangle as a pseudo element for the tip.
The advantage here is that no transforms are necessary. (It will work in IE8+)
.arrow {_x000D_
position: relative;_x000D_
}_x000D_
.arrow:before {_x000D_
content: '×';_x000D_
display: inline-block;_x000D_
position: absolute;_x000D_
font-size: 240px;_x000D_
font-weight: bold;_x000D_
font-family: verdana;_x000D_
width: 103px;_x000D_
height: 151px;_x000D_
overflow: hidden;_x000D_
line-height: 117px;_x000D_
}_x000D_
.arrow:after {_x000D_
content: '';_x000D_
display: inline-block;_x000D_
position: absolute;_x000D_
left: 101px;_x000D_
top: 51px;_x000D_
width: 0;_x000D_
height: 0;_x000D_
border-style: solid;_x000D_
border-width: 25px 0 25px 24px;_x000D_
border-color: transparent transparent transparent black;_x000D_
}
_x000D_
<div class="arrow"></div>
_x000D_
The return value of os.system
is OS-dependant.
On Unix, the return value is a 16-bit number that contains two different pieces of information. From the documentation:
a 16-bit number, whose low byte is the signal number that killed the process, and whose high byte is the exit status (if the signal number is zero)
So if the signal number (low byte) is 0, it would, in theory, be safe to shift the result by 8 bits (result >> 8
) to get the error code. The function os.WEXITSTATUS
does exactly this. If the error code is 0, that usually means that the process exited without errors.
On Windows, the documentation specifies that the return value of os.system
is shell-dependant. If the shell is cmd.exe
(the default one), the value is the return code of the process. Again, 0 would mean that there weren't errors.
For others error codes:
Strings are hard work in C.
#include <stdio.h>
int main()
{
int i;
char buf[12];
for (i = 0; i < 100; i++) {
snprintf(buf, 12, "pre_%d_suff", i); // puts string into buffer
printf("%s\n", buf); // outputs so you can see it
}
}
The 12
is enough bytes to store the text "pre_"
, the text "_suff"
, a string of up to two characters ("99"
) and the NULL terminator that goes on the end of C string buffers.
This will tell you how to use snprintf
, but I suggest a good C book!
There's a lot of typedef
going on here. Personally I'm against "hiding the asterisk", i.e. typedef
:ing pointer types into something that doesn't look like a pointer. In C, pointers are quite important and really affect the code, there's a lot of difference between foo
and foo *
.
Many of the answers are also confused about this, I think.
Your allocation of an array of Chess
values, which are pointers to values of type chess
(again, a very confusing nomenclature that I really can't recommend) should be like this:
Chess *array = malloc(n * sizeof *array);
Then, you need to initialize the actual instances, by looping:
for(i = 0; i < n; ++i)
array[i] = NULL;
This assumes you don't want to allocate any memory for the instances, you just want an array of pointers with all pointers initially pointing at nothing.
If you wanted to allocate space, the simplest form would be:
for(i = 0; i < n; ++i)
array[i] = malloc(sizeof *array[i]);
See how the sizeof
usage is 100% consistent, and never starts to mention explicit types. Use the type information inherent in your variables, and let the compiler worry about which type is which. Don't repeat yourself.
Of course, the above does a needlessly large amount of calls to malloc()
; depending on usage patterns it might be possible to do all of the above with just one call to malloc()
, after computing the total size needed. Then you'd still need to go through and initialize the array[i]
pointers to point into the large block, of course.