Horizontal scrollbars in a HTML Select are not natively supported. However, here's a way to create the appearance of a horizontal scrollbar:
1. First create a css class
<style type="text/css">
.scrollable{
overflow: auto;
width: 70px; /* adjust this width depending to amount of text to display */
height: 80px; /* adjust height depending on number of options to display */
border: 1px silver solid;
}
.scrollable select{
border: none;
}
</style>
2. Wrap the SELECT inside a DIV - also, explicitly set the size to the number of options.
<div class="scrollable">
<select size="6" multiple="multiple">
<option value="1" selected>option 1 The Long Option</option>
<option value="2">option 2</option>
<option value="3">option 3</option>
<option value="4">option 4</option>
<option value="5">option 5 Another Longer than the Long Option ;)</option>
<option value="6">option 6</option>
</select>
</div>
For MAC users
After some research, this worked for me:
You have to dot source
them:
. .\build_funtions.ps1
. .\build_builddefs.ps1
Note the extra .
This heyscriptingguy
article should be of help - How to Reuse Windows PowerShell Functions in Scripts
Reinstall JDK and set system variable JAVA_HOME on your JDK. (e.g. C:\tools\jdk7)
And add JAVA_HOME variable to your PATH system variable
Type in command line
echo %JAVA_HOME%
and
java -version
To verify whether your installation was done successfully.
This problem generally occurs in Windows when your "Java Runtime Environment" registry entry is missing or mismatched with the installed JDK. The mismatch can be due to multiple JDKs.
Steps to resolve:
Open the Run window:
Press windows+R
Open registry window:
Type regedit
and enter.
Go to: \HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\
If Java Runtime Environment is not present inside JavaSoft, then create a new Key and give the name Java Runtime Environment.
For Java Runtime Environment create "CurrentVersion" String Key and give appropriate version as value:
Create a new subkey of 1.8.
For 1.8 create a String Key with name JavaHome with the value of JRE home:
Ref: https://mybindirectory.blogspot.com/2019/05/error-could-not-find-javadll.html
If it's a class that you can modify, you could declare a class variable static java.util.concurrent.atomic.AtomicInteger nextInstanceId
. (You'll have to give it an initial value in the obvious way.) Then declare an instance variable int instanceId = nextInstanceId.getAndIncrement()
.
use your jsonsimpleobject direclty like below
JSONObject unitsObj = parser.parse(new FileReader("file.json");
SELECT to_char(to_date(month,'yyyy-mm'),'Mon yyyy'), nos
FROM (SELECT to_char(credit_date,'yyyy-mm') MONTH,count(*) nos
FROM HCN
WHERE TRUNC(CREDIT_dATE) BEtween '01-jul-2014' AND '30-JUN-2015'
AND CATEGORYCODECFR=22
--AND CREDIT_NOTE_NO IS NOT NULL
AND CANCELDATE IS NULL
GROUP BY to_char(credit_date,'yyyy-mm')
ORDER BY to_char(credit_date,'yyyy-mm') ) mm
Output:
Jul 2014 49
Aug 2014 35
Sep 2014 57
Oct 2014 50
Nov 2014 45
Dec 2014 88
Jan 2015 131
Feb 2015 112
Mar 2015 76
Apr 2015 45
May 2015 49
Jun 2015 40
On codeplex was released new XNA Extension for Visual Studio 2012/2013. You can download it from: https://msxna.codeplex.com/releases
DO LIKE THIS
<LinearLayout
android:id="@+id/LinearLayouts02"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="bottom|end">
<TextView
android:id="@+id/texts1"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:layout_weight="2"
android:text="@string/forgotpass"
android:padding="7dp"
android:gravity="bottom|center_horizontal"
android:paddingLeft="10dp"
android:layout_marginBottom="30dp"
android:bottomLeftRadius="10dp"
android:bottomRightRadius="50dp"
android:fontFamily="sans-serif-condensed"
android:textColor="@color/colorAccent"
android:textStyle="bold"
android:textSize="16sp"
android:topLeftRadius="10dp"
android:topRightRadius="10dp"
/>
</LinearLayout>
If you have been trying to send a one dimentional array and jquery was converting it to comma separated values >:( then follow the code below and an actual array will be submitted to php
and not all the comma separated bull**it.
Say you have to attach a single dimentional array named myvals
.
jQuery('#someform').on('submit', function (e) {
e.preventDefault();
var data = $(this).serializeArray();
var myvals = [21, 52, 13, 24, 75]; // This array could come from anywhere you choose
for (i = 0; i < myvals.length; i++) {
data.push({
name: "myvals[]", // These blank empty brackets are imp!
value: myvals[i]
});
}
jQuery.ajax({
type: "post",
url: jQuery(this).attr('action'),
dataType: "json",
data: data, // You have to just pass our data variable plain and simple no Rube Goldberg sh*t.
success: function (r) {
...
Now inside php
when you do this
print_r($_POST);
You will get ..
Array
(
[someinputinsidetheform] => 023
[anotherforminput] => 111
[myvals] => Array
(
[0] => 21
[1] => 52
[2] => 13
[3] => 24
[4] => 75
)
)
Pardon my language, but there are hell lot of Rube-Goldberg solutions scattered all over the web and specially on SO, but none of them are elegant or solve the problem of actually posting a one dimensional array to php
via ajax post. Don't forget to spread this solution.
bootstrap provides various classes for table
<table class="table"></table>
<table class="table table-bordered"></table>
<table class="table table-hover"></table>
<table class="table table-condensed"></table>
<table class="table table-responsive"></table>
This might be a simple solution to achieve this:
INSERT INTO funds (ID, date, price)
SELECT 23, DATE('2013-02-12'), 22.5
FROM dual
WHERE NOT EXISTS (SELECT 1
FROM funds
WHERE ID = 23
AND date = DATE('2013-02-12'));
p.s. alternatively (if ID
a primary key):
INSERT INTO funds (ID, date, price)
VALUES (23, DATE('2013-02-12'), 22.5)
ON DUPLICATE KEY UPDATE ID = 23; -- or whatever you need
see this Fiddle.
You do not have permissions to access the file. Please be sure whether you can access the file in that drive.
string route= @"E:\Sample.text";
FileStream fs = new FileStream(route, FileMode.Create);
You have to provide the file name to create. Please try this, now you can create.
For those who use Git Extensions:
In the Commit window, select the file you want to partially commit, then select the text you want to commit in the right pane, then right-click on the selection and choose 'Stage selected lines' from the context menu.
PHP uses one of two methods to keep track of sessions. If cookies are enabled, like in your case, it uses them.
If cookies are disabled, it uses the URL. Although this can be done securely, it's harder and it often, well, isn't. See, e.g., session fixation.
Search for it, you will get lots of SEO advice. The conventional wisdom is that you should use the cookies, but php will keep track of the session either way.
html
<input class='all' type='checkbox'> All
<input class='item' type='checkbox' value='1'> 1
<input class='item' type='checkbox' value='2'> 2
<input class='item' type='checkbox' value='3'> 3
javascript
$(':checkbox.all').change(function(){
$(':checkbox.item').prop('checked', this.checked);
});
What's new in Python 3.0 says:
All text is Unicode; however encoded Unicode is represented as binary data
If you want to ensure you are outputting utf-8, here's an example from this page on unicode in 3.0:
b'\x80abc'.decode("utf-8", "strict")
In my case MySQL sever was not running. I restarted the MySQL server and issue was resolved.
//on ubuntu server
sudo /etc/init.d/mysql start
To avoid MySQL stop problem, you can use the "initctl" utility in Ubuntu 14.04 LTS Linux to make sure the service restarts in case of a failure or reboot. Please consider talking a snapshot of root volume (with mysql stopped) before performing this operations for data retention purpose[8]. You can use the following commands to manage the mysql service with "initctl" utility with stop and start operations.
$ sudo initctl stop mysql
$ sudo initctl start mysql
To verify the working, you can check the status of the service and get the process id (pid), simulate a failure by killing the "mysql" process and verify its status as running with new process id after sometime (typically within 1 minute) using the following commands.
$ sudo initctl status mysql # get pid
$ sudo kill -9 <pid> # kill mysql process
$ sudo initctl status mysql # verify status as running after sometime
Note : In latest Ubuntu version now initctl is replaced by systemctl
Save it as a .ps1 file and then execute
powershell -file "path\to your\start stop nation service command file.ps1"
This is my solution in which I deal with multiple events in my workflow.
let h2 = document.querySelector("h2");_x000D_
_x000D_
function addMultipleEvents(eventsArray, targetElem, handler) {_x000D_
eventsArray.map(function(event) {_x000D_
targetElem.addEventListener(event, handler, false);_x000D_
}_x000D_
);_x000D_
}_x000D_
let counter = 0;_x000D_
function countP() {_x000D_
counter++;_x000D_
h2.innerHTML = counter;_x000D_
}_x000D_
_x000D_
// magic starts over here..._x000D_
addMultipleEvents(['click', 'mouseleave', 'mouseenter'], h2, countP);
_x000D_
<h1>MULTI EVENTS DEMO - If you click, move away or enter the mouse on the number, it counts...</h1>_x000D_
_x000D_
<h2 style="text-align:center; font: bold 3em comic; cursor: pointer">0</h2>
_x000D_
I would rather use plt.clf()
after every plt.show()
to just clear the current figure instead of closing and reopening it, keeping the window size and giving you a better performance and much better memory usage.
Similarly, you could do plt.cla()
to just clear the current axes.
To clear a specific axes, useful when you have multiple axes within one figure, you could do for example:
fig, axes = plt.subplots(nrows=2, ncols=2)
axes[0, 1].clear()
We can use normal CAT command to merge files..
D:> cat *.csv > outputs.csv
[HttpPost]
public ActionResult SaveComments(int id, string comments){
var actions = new Actions(User.Identity.Name);
var status = actions.SaveComments(id, comments);
return Content(status);
}
Kotlin implementation.
You can create a simple function like this:
fun dialogYesOrNo(
activity: Activity,
title: String,
message: String,
listener: DialogInterface.OnClickListener
) {
val builder = AlertDialog.Builder(activity)
builder.setPositiveButton("Yes", DialogInterface.OnClickListener { dialog, id ->
dialog.dismiss()
listener.onClick(dialog, id)
})
builder.setNegativeButton("No", null)
val alert = builder.create()
alert.setTitle(title)
alert.setMessage(message)
alert.show()
}
and call it like this:
dialogYesOrNo(
this,
"Question",
"Would you like to eat?",
DialogInterface.OnClickListener { dialog, id ->
// do whatever you need to do when user presses "Yes"
}
})
From ISO14882:2011(e) 5.6-4:
The binary / operator yields the quotient, and the binary % operator yields the remainder from the division of the first expression by the second. If the second operand of / or % is zero the behavior is undefined. For integral operands the / operator yields the algebraic quotient with any fractional part discarded; if the quotient a/b is representable in the type of the result, (a/b)*b + a%b is equal to a.
The rest is basic math:
(-7/3) => -2
-2 * 3 => -6
so a%b => -1
(7/-3) => -2
-2 * -3 => 6
so a%b => 1
Note that
If both operands are nonnegative then the remainder is nonnegative; if not, the sign of the remainder is implementation-defined.
from ISO14882:2003(e) is no longer present in ISO14882:2011(e)
Use cURL. This function is an alternative to file_get_contents
.
function url_get_contents ($Url) {
if (!function_exists('curl_init')){
die('CURL is not installed!');
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $Url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$output = curl_exec($ch);
curl_close($ch);
return $output;
}
the next answer is for those who have a multi-level menu:
var url = window.location.href;
var els = document.querySelectorAll(".dropdown-menu a");
for (var i = 0, l = els.length; i < l; i++) {
var el = els[i];
if (el.href === url) {
el.classList.add("active");
var parent = el.closest(".main-nav"); // add this class for the top level "li" to get easy the parent
parent.classList.add("active");
}
}
The following is a nice expedient solution that works with GitHub for checking out the PR branch from another user's fork. You need to know the pull request ID (which GitHub displays along with the PR title).
Example:
Fixing your insecure code #8
alice wants to merge 1 commit into your_repo:master
from her_repo:branch
git checkout -b <branch>
git pull origin pull/8/head
Substitute your remote if different from origin
.
Substitute 8
with the correct pull request ID.
To add to this - it seems important to define the width & height of the drawable as per this post:
(his code works)
Try this,
this.props.router.push('/foo')
warning works for versions prior to v4
and
this.props.history.push('/foo')
for v4 and above
You can use below code for your solution:-
public void Linq94()
{
int[] numbersA = { 0, 2, 4, 5, 6, 8, 9 };
int[] numbersB = { 1, 3, 5, 7, 8 };
var allNumbers = numbersA.Concat(numbersB);
Console.WriteLine("All numbers from both arrays:");
foreach (var n in allNumbers)
{
Console.WriteLine(n);
}
}
You can try this:
HTML
<table>
<tr>
<td class="shrink">element1</td>
<td class="shrink">data</td>
<td class="shrink">junk here</td>
<td class="expand">last column</td>
</tr>
<tr>
<td class="shrink">elem</td>
<td class="shrink">more data</td>
<td class="shrink">other stuff</td>
<td class="expand">again, last column</td>
</tr>
<tr>
<td class="shrink">more</td>
<td class="shrink">of </td>
<td class="shrink">these</td>
<td class="expand">rows</td>
</tr>
</table>
CSS
table {
border: 1px solid green;
border-collapse: collapse;
width:100%;
}
table td {
border: 1px solid green;
}
table td.shrink {
white-space:nowrap
}
table td.expand {
width: 99%
}
does it matter? people are generally smart enough to interpret messages correctly, if they aren't you probably shouldn't let them access your repository anyway!
Yet another plpgsql - resets only if max(att) > then lastval
do --check seq not in sync
$$
declare
_r record;
_i bigint;
_m bigint;
begin
for _r in (
SELECT relname,nspname,d.refobjid::regclass, a.attname, refobjid
FROM pg_depend d
JOIN pg_attribute a ON a.attrelid = d.refobjid AND a.attnum = d.refobjsubid
JOIN pg_class r on r.oid = objid
JOIN pg_namespace n on n.oid = relnamespace
WHERE d.refobjsubid > 0 and relkind = 'S'
) loop
execute format('select last_value from %I.%I',_r.nspname,_r.relname) into _i;
execute format('select max(%I) from %s',_r.attname,_r.refobjid) into _m;
if coalesce(_m,0) > _i then
raise info '%',concat('changed: ',_r.nspname,'.',_r.relname,' from:',_i,' to:',_m);
execute format('alter sequence %I.%I restart with %s',_r.nspname,_r.relname,_m+1);
end if;
end loop;
end;
$$
;
also commenting the line --execute format('alter sequence
will give the list, not actually resetting the value
It basically is higher/greater in everything else. A keyboard is less of a priority than the real time process. This means the process will be taken into account faster then keyboard and if it can't handle that, then your keyboard is slowed.
With your example:
avgDists = np.array([1, 8, 6, 9, 4])
Obtain indexes of n maximal values:
ids = np.argpartition(avgDists, -n)[-n:]
Sort them in descending order:
ids = ids[np.argsort(avgDists[ids])[::-1]]
Obtain results (for n=4):
>>> avgDists[ids]
array([9, 8, 6, 4])
You may try creating a new project in netbeans and then copy and and paste the files into it. I usually experience this problem when the project wasn't created in netbeans.
Instead of
mount -o rw,remount /system/
use
mount -o rw,remount /system
mind the '/' at the end of the command. you ask why this matters? /system/ is the directory under /system while /system is the volume name.
I would try to solve this without VBA. Just select this space and use replace (change to nothing) on that worksheet you're trying to get rid off those spaces.
If you really want to use VBA I believe you could select first character
strSpace = left(range("A1").Value,1)
and use replace function in VBA the same way
Range("A1").Value = Replace(Range("A1").Value, strSpace, "")
or
for each cell in selection.cells
cell.value = replace(cell.value, strSpace, "")
next
For encoding to base64 in Angular2, you can use btoa() function.
Example:-
console.log(btoa("stringAngular2"));
// Output:- c3RyaW5nQW5ndWxhcjI=
For decoding from base64 in Angular2, you can use atob() function.
Example:-
console.log(atob("c3RyaW5nQW5ndWxhcjI="));
// Output:- stringAngular2
None of the other provided examples would work for me when dealing with this specific issue with excel on windows 10. The only other option I could think of was to try and rename the file or directory containing the file temporarily, then rename it back.
import os
try:
os.rename('file.xls', 'tempfile.xls')
os.rename('tempfile.xls', 'file.xls')
except OSError:
print('File is still open.')
php's email()
function hands the email over to a underlying mail transfer agent
which is usually postfix
on linux systems
so the preferred method on linux is to configure your postfix to use a relayhost, which is done by a line of
relayhost = smtp.example.com
in /etc/postfix/main.cf
however in the OP's scenario I somehow suspect that it's a job that his hosting team
should have done
I wrote this one today while trying to recreate _.sortBy
in TypeScript, and thought I would leave it for anyone in need.
// ** Credits for getKeyValue at the bottom **
export const getKeyValue = <T extends {}, U extends keyof T>(key: U) => (obj: T) => obj[key]
export const sortBy = <T extends {}>(index: string, list: T[]): T[] => {
return list.sort((a, b): number => {
const _a = getKeyValue<keyof T, T>(index)(a)
const _b = getKeyValue<keyof T, T>(index)(b)
if (_a < _b) return -1
if (_a > _b) return 1
return 0
})
}
It expects an array of generic type T, hence the cast for <T extends {}>
, as well as typing the parameter and function return type with T[]
const x = [{ label: 'anything' }, { label: 'goes'}]
const sorted = sortBy('label', x)
** getByKey
fn found here
Writing this piece of code fixed my problem:
requests.get(link, headers = {'User-agent': 'your bot 0.1'})
I tried subtract, but the result was not consistent.
If I run df1.subtract(df2)
, not all lines of df1 are shown on the result dataframe, probably due distinct
cited on the docs.
This solved my problem:
df1.exceptAll(df2)
I reached the point that I set, up to max_iter=1200000
on my LinearSVC
classifier, but still the "ConvergenceWarning" was still present. I fix the issue by just setting dual=False
and leaving max_iter
to its default.
With LogisticRegression(solver='lbfgs')
classifier, you should increase max_iter
. Mine have reached max_iter=7600
before the "ConvergenceWarning" disappears when training with large dataset's features.
System.out.println(Integer.toHexString(test[0]));
OR (pretty print)
System.out.printf("0x%02X", test[0]);
OR (pretty print)
System.out.println(String.format("0x%02X", test[0]));
fill="#044B9466"
This is an RGBA color in hex notation inside the SVG, defined with hex values. This is valid, but not all programs can display it properly...
You can find the browser support for this syntax here: https://caniuse.com/#feat=css-rrggbbaa
As of August 2017: RGBA fill colors will display properly on Mozilla Firefox (54), Apple Safari (10.1) and Mac OS X Finder's "Quick View". However Google Chrome did not support this syntax until version 62 (was previously supported from version 54 with the Experimental Platform Features flag enabled).
For people having a startTime
(like 12h:30:30) and a duration
(value in minutes like 120), you can guess the endTime
like so:
const startTime = '12:30:00';
const durationInMinutes = '120';
const endTime = moment(startTime, 'HH:mm:ss').add(durationInMinutes, 'minutes').format('HH:mm');
// endTime is equal to "14:30"
With the following,
#include <iomanip>
#include <iostream>
int main()
{
std::cout << std::setfill('0') << std::setw(5) << 25;
}
the output will be
00025
setfill
is set to the space character (' '
) by default. setw
sets the width of the field to be printed, and that's it.
If you are interested in knowing how the to format output streams in general, I wrote an answer for another question, hope it is useful: Formatting C++ Console Output.
You can directly write the array in modern Java, without an initializer. Your example is now valid. It is generally best to name the parameter anyway.
String[] array = {"blah", "hey", "yo"};
or
int[] array = {1, 2, 3};
If you have to inline, you'll need to declare the type:
functionCall(new String[]{"blah", "hey", "yo"});
or use varargs (variable arguments)
void functionCall(String...stringArray) {
// Becomes a String[] containing any number of items or empty
}
functionCall("blah", "hey", "yo");
Hopefully Java's developers will allow implicit initialization in the future
Kotlin has made working with arrays so much easier! For most types, just use arrayOf
and it will implicitly determine type. Pass nothing to leave them empty.
arrayOf("1", "2", "3") // String
arrayOf(1, 2, 3) // Int
arrayOf(1, 2, "foo") // Any
arrayOf<Int>(1, 2, 3) // Set explict type
arrayOf<String>() // Empty String array
Primitives have utility functions. Pass nothing to leave them empty.
intArrayOf(1, 2, 3)
charArrayOf()
booleanArrayOf()
longArrayOf()
shortArrayOf()
byteArrayOf()
If you already have a Collection
and wish to convert it to an array inline, simply use:
collection.toTypedArray()
If you need to coerce an array type, use:
array.toIntArray()
array.toLongArray()
array.toCharArray()
...
The document has moved here it seems: https://help.apple.com/xcode/mac/8.0/#/dev564169bb1
Can't copy the icons here, but here are the descriptions:
Show: Present the content in the detail or master area depending on the content of the screen.
If the app is displaying a master and detail view, the content is pushed onto the detail area. If the app is only displaying the master or the detail, the content is pushed on top of the current view controller stack.
Show Detail: Present the content in the detail area.
If the app is displaying a master and detail view, the new content replaces the current detail. If the app is only displaying the master or the detail, the content replaces the top of the current view controller stack.
Present Modally: Present the content modally.
Present as Popover: Present the content as a popover anchored to an existing view.
Custom: Create your own behaviors by using a custom segue.
If your img is exactly first element inside div then try
$(this.firstChild);
$( "#box" ).click( function() {_x000D_
let img = $(this.firstChild);_x000D_
console.log({img});_x000D_
})
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
_x000D_
<div id="box"><img src="https://picsum.photos/seed/picsum/300/150"></div>
_x000D_
In my instance of this problem I had to specify box-shadow: none
button:focus {
outline:none;
box-shadow: none;
}
First of all, Android does not recommend you to do that within the back button, but rather using the lifecycle methods provided. The back button should not destroy the Activity.
Activities are being added to the stack, accessible from the Overview (square button since they introduced the Material design in 5.0) when the back button is pressed on the last remaining Activity from the UI stack. If the user wants to close down your app, they should swipe it off (close it) from the Overview menu.
Your app is responsible to stop any background tasks and jobs you don't want to run, on onPause(), onStop() and onDestroy() lifecycle methods. Please read more about the lifecycles and their proper implementation here: http://developer.android.com/training/basics/activity-lifecycle/stopping.html
But to answer your question, you can do hacks to implement the exact behaviour you want, but as I said, it is not recommended:
@Override
public void onBackPressed() {
// make sure you have this outcommented
// super.onBackPressed();
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
I haven't done any benchmarks, but this recipe "works for me".
The short version: use '%x' % val
, then unhexlify
the result. The devil is in the details, though, as unhexlify
requires an even number of hex digits, which %x
doesn't guarantee. See the docstring, and the liberal inline comments for details.
from binascii import unhexlify
def long_to_bytes (val, endianness='big'):
"""
Use :ref:`string formatting` and :func:`~binascii.unhexlify` to
convert ``val``, a :func:`long`, to a byte :func:`str`.
:param long val: The value to pack
:param str endianness: The endianness of the result. ``'big'`` for
big-endian, ``'little'`` for little-endian.
If you want byte- and word-ordering to differ, you're on your own.
Using :ref:`string formatting` lets us use Python's C innards.
"""
# one (1) hex digit per four (4) bits
width = val.bit_length()
# unhexlify wants an even multiple of eight (8) bits, but we don't
# want more digits than we need (hence the ternary-ish 'or')
width += 8 - ((width % 8) or 8)
# format width specifier: four (4) bits per hex digit
fmt = '%%0%dx' % (width // 4)
# prepend zero (0) to the width, to zero-pad the output
s = unhexlify(fmt % val)
if endianness == 'little':
# see http://stackoverflow.com/a/931095/309233
s = s[::-1]
return s
...and my nosetest unit tests ;-)
class TestHelpers (object):
def test_long_to_bytes_big_endian_small_even (self):
s = long_to_bytes(0x42)
assert s == '\x42'
s = long_to_bytes(0xFF)
assert s == '\xff'
def test_long_to_bytes_big_endian_small_odd (self):
s = long_to_bytes(0x1FF)
assert s == '\x01\xff'
s = long_to_bytes(0x201FF)
assert s == '\x02\x01\xff'
def test_long_to_bytes_big_endian_large_even (self):
s = long_to_bytes(0xab23456c8901234567)
assert s == '\xab\x23\x45\x6c\x89\x01\x23\x45\x67'
def test_long_to_bytes_big_endian_large_odd (self):
s = long_to_bytes(0x12345678901234567)
assert s == '\x01\x23\x45\x67\x89\x01\x23\x45\x67'
def test_long_to_bytes_little_endian_small_even (self):
s = long_to_bytes(0x42, 'little')
assert s == '\x42'
s = long_to_bytes(0xFF, 'little')
assert s == '\xff'
def test_long_to_bytes_little_endian_small_odd (self):
s = long_to_bytes(0x1FF, 'little')
assert s == '\xff\x01'
s = long_to_bytes(0x201FF, 'little')
assert s == '\xff\x01\x02'
def test_long_to_bytes_little_endian_large_even (self):
s = long_to_bytes(0xab23456c8901234567, 'little')
assert s == '\x67\x45\x23\x01\x89\x6c\x45\x23\xab'
def test_long_to_bytes_little_endian_large_odd (self):
s = long_to_bytes(0x12345678901234567, 'little')
assert s == '\x67\x45\x23\x01\x89\x67\x45\x23\x01'
Update: 2017-01-10
Data URIs are now supported by all major browsers. IE supports embedding images since version 8 as well.
http://caniuse.com/#feat=datauri
Data URIs are now supported by the following web browsers:
- Gecko-based, such as Firefox, SeaMonkey, XeroBank, Camino, Fennec and K-Meleon
- Konqueror, via KDE's KIO slaves input/output system
- Opera (including devices such as the Nintendo DSi or Wii)
- WebKit-based, such as Safari (including on iOS), Android's browser, Epiphany and Midori (WebKit is a derivative of Konqueror's KHTML engine, but Mac OS X does not share the KIO architecture so the implementations are different), as well as Webkit/Chromium-based, such as Chrome
- Trident
- Internet Explorer 8: Microsoft has limited its support to certain "non-navigable" content for security reasons, including concerns that JavaScript embedded in a data URI may not be interpretable by script filters such as those used by web-based email clients. Data URIs must be smaller than 32 KiB in Version 8[3].
- Data URIs are supported only for the following elements and/or attributes[4]:
- object (images only)
- img
- input type=image
- link
- CSS declarations that accept a URL, such as background-image, background, list-style-type, list-style and similar.
- Internet Explorer 9: Internet Explorer 9 does not have 32KiB limitation and allowed in broader elements.
- TheWorld Browser: An IE shell browser which has a built-in support for Data URI scheme
http://en.wikipedia.org/wiki/Data_URI_scheme#Web_browser_support
But I can't figure out why should we use it like this?
I will compare how it works inside the function body if you use:
Object myObject;
Inside the function, your myObject
will get destroyed once this function returns. So this is useful if you don't need your object outside your function. This object will be put on current thread stack.
If you write inside function body:
Object *myObject = new Object;
then Object class instance pointed by myObject
will not get destroyed once the function ends, and allocation is on the heap.
Now if you are Java programmer, then the second example is closer to how object allocation works under java. This line: Object *myObject = new Object;
is equivalent to java: Object myObject = new Object();
. The difference is that under java myObject will get garbage collected, while under c++ it will not get freed, you must somewhere explicitly call `delete myObject;' otherwise you will introduce memory leaks.
Since c++11 you can use safe ways of dynamic allocations: new Object
, by storing values in shared_ptr/unique_ptr.
std::shared_ptr<std::string> safe_str = make_shared<std::string>("make_shared");
// since c++14
std::unique_ptr<std::string> safe_str = make_unique<std::string>("make_shared");
also, objects are very often stored in containers, like map-s or vector-s, they will automatically manage a lifetime of your objects.
You have to fetch that one record, it will contain the result of Count()
$result = $db->query("SELECT COUNT(*) FROM `table`");
$row = $result->fetch_row();
echo '#: ', $row[0];
An alternative is to use reduction:
(this example uses strings but could easily apply to any object type including User
)
List<String> list = ImmutableList.of("one", "two", "three", "four", "five", "two");
String match = list.stream().filter("two"::equals).reduce(thereCanBeOnlyOne()).get();
//throws NoSuchElementException if there are no matching elements - "zero"
//throws RuntimeException if duplicates are found - "two"
//otherwise returns the match - "one"
...
//Reduction operator that throws RuntimeException if there are duplicates
private static <T> BinaryOperator<T> thereCanBeOnlyOne()
{
return (a, b) -> {throw new RuntimeException("Duplicate elements found: " + a + " and " + b);};
}
So for the case with User
you would have:
User match = users.stream().filter((user) -> user.getId() < 0).reduce(thereCanBeOnlyOne()).get();
tl;dr
All maven POMs inherit from a base Super POM.
The snippet below is part of the Super POM for Maven 3.5.4.
<repositories>
<repository>
<id>central</id>
<name>Central Repository</name>
<url>https://repo.maven.apache.org/maven2</url>
<layout>default</layout>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
Codeigniter has a function that retrieves your base path which is:
FCPATH and BASEPATH i recommand use FCPATH.
for your base url use:
<?=base_url()?>
if your php short tag is off
<?php echo base_url(); ?>
for example: if you want to link you css files which is in your base path
<script src='<?=base_url()?>js/jquery.js' type='text/javascript' />
If the indices match then:
df['B'] = df1['E']
should work otherwise:
df['B'] = df1['E'].values
will work so long as the length of the elements matches
Try using os.makedirs:
import os
import errno
try:
os.makedirs(<path>)
except OSError as e:
if errno.EEXIST != e.errno:
raise
There is a branch of conda (new-pypi-install) that adds better integration with pip and PyPI. In particular conda list will also show pip installed packages and conda install will first try to find a conda package and failing that will use pip to install the package.
This branch is scheduled to be merged later this week so that version 2.1 of conda will have better pip-integration with conda.
m/ /g
just give space in / /
, and it will work. Or use \S
— it will replace all the special characters like tab, newlines, spaces, and so on.
I prefer to this approach because you can return the promise and use .then(successFunction, failFunction); anywhere you need to.
var promise = $.ajax({
type: 'GET',
dataType: 'json',
url: url,
timeout: 5000
}).then(function( data, textStatus, jqXHR ) {
alert('request successful');
}, function( jqXHR, textStatus, errorThrown ) {
alert('request failed');
});
//also access the success and fail using variable
promise.then(successFunction, failFunction);
The ISO 7000 / IEC 60417 Symbol for Pause; Interruption is #5111B. See Media_Controls
As i had explained my approach in my site i shared the link.Anyways the idea is create bitmaps by getdrawingcache .have two bitmap and animate the lower bitmap to create the moving effect
Please see the following code:
listView.setOnItemClickListener(new AdapterView.OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View rowView, int positon, long id)
{
listView.setDrawingCacheEnabled(true);
//listView.buildDrawingCache(true);
bitmap = listView.getDrawingCache();
myBitmap1 = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), rowView.getBottom());
myBitmap2 = Bitmap.createBitmap(bitmap, 0, rowView.getBottom(), bitmap.getWidth(), bitmap.getHeight() - myBitmap1.getHeight());
listView.setDrawingCacheEnabled(false);
imgView1.setBackgroundDrawable(new BitmapDrawable(getResources(), myBitmap1));
imgView2.setBackgroundDrawable(new BitmapDrawable(getResources(), myBitmap2));
imgView1.setVisibility(View.VISIBLE);
imgView2.setVisibility(View.VISIBLE);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
lp.setMargins(0, rowView.getBottom(), 0, 0);
imgView2.setLayoutParams(lp);
TranslateAnimation transanim = new TranslateAnimation(0, 0, 0, -rowView.getHeight());
transanim.setDuration(400);
transanim.setAnimationListener(new Animation.AnimationListener()
{
public void onAnimationStart(Animation animation)
{
}
public void onAnimationRepeat(Animation animation)
{
}
public void onAnimationEnd(Animation animation)
{
imgView1.setVisibility(View.GONE);
imgView2.setVisibility(View.GONE);
}
});
array.remove(positon);
adapter.notifyDataSetChanged();
imgView2.startAnimation(transanim);
}
});
For understanding with images see this
Thanks.
There are 3 ways I can think of:
The way that is easiest to explain is
:%s/phrase to delete//gc
but you can also (personally I use this second one more often) do a regular search for the phrase to delete
/phrase to delete
Vim will take you to the beginning of the next occurrence of the phrase.
Go into insert mode (hit i) and use the Delete key to remove the phrase.
Hit escape when you have deleted all of the phrase.
Now that you have done this one time, you can hit n to go to the next occurrence of the phrase and then hit the dot/period "." key to perform the delete action you just performed
Continue hitting n and dot until you are done.
Lastly you can do a search for the phrase to delete (like in second method) but this time, instead of going into insert mode, you
Count the number of characters you want to delete
Type that number in (with number keys)
Hit the x key - characters should get deleted
Continue through with n and dot like in the second method.
PS - And if you didn't know already you can do a capital n to move backwards through the search matches.
I had same problem and after three hour struggling I find out what's going on
In my case, when I wanted to migrate for the first time in up()
method, the default code wants to create the tables that already existed so I got same error as you
To solve it, just delete those code and write want you want. For example, I wanted to add a column so i just write
migrationBuilder.AddColumn<string>(
name: "fieldName",
table: "tableName",
nullable: true);
UICollectionView is same as UITableView but it gives us the additional functionality of simply creating a grid view, which is a bit problematic in UITableView. It will be a very long post I mention a link from where you will get everything in simple steps.
Replace all non-digit with blank: the remaining string contains only digits.
Integer.parseInt(s.replaceAll("[\\D]", ""))
This will also remove non-digits inbetween digits, so "x1x1x"
becomes 11
.
If you need to confirm that the string consists of a sequence of digits (at least one) possibly followed a letter, then use this:
s.matches("[\\d]+[A-Za-z]?")
When you have methods, classes, etc which need to be accessible within the scope of the current assembly and never outside it.
For example, a DAL may have an ORM but the objects should not be exposed to the business layer all interaction should be done through static methods and passing in the required paramters.
Try this:
app.component.ts
import {Component, OnInit, OnDestroy} from '@angular/core';
import {Router, NavigationEnd} from '@angular/router';
import {filter} from 'rxjs/operators';
import {Subscription} from 'rxjs';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.scss'],
})
export class AppComponent implements OnInit, OnDestroy {
subscription: Subscription;
constructor(private router: Router) {
}
ngOnInit() {
this.subscription = this.router.events.pipe(
filter(event => event instanceof NavigationEnd)
).subscribe(() => window.scrollTo(0, 0));
}
ngOnDestroy() {
this.subscription.unsubscribe();
}
}
I tried the first answer: git stash
with the highest score but the error message still popped up, and then I found this article to commit the changes instead of stash 'Reluctant Commit'
and the error message disappeared finally:
1: git add .
2: git commit -m "this is an additional commit"
3: git checkout the-other-file-name
then it worked. hope this answer helps.:)
This is what worked for me: Using Gradle 4.8.1
buildscript {
ext.kotlin_version = '1.1.1'
repositories {
jcenter()
google()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.0'}
}
allprojects {
repositories {
mavenLocal()
jcenter()
google()
maven {
url "$rootDir/../node_modules/react-native/android"
}
maven {
url 'https://dl.bintray.com/kotlin/kotlin-dev/'
}
}
}
No, you still need to scp [from] [to]
whichever way you're copying
The difference is, you need to scp -p server:serverpath localpath
It can be done using javascript. Say your html/aspx code goes this way:
<span>Main heading</span>
<asp:Label ID="lbl1" runat="server" Text="Contents"></asp:Label>
<asp:Label Text="Contractor Name" ID="lblCont" runat="server"></asp:Label>
<div id="forPrintPreview">
<asp:Label Text="Company Name" runat="server"></asp:Label>
<asp:GridView runat="server">
//GridView Content goes here
</asp:GridView
</div>
<input type="button" onclick="PrintPreview();" value="Print Preview" />
Here on click of "Print Preview" button we will open a window with data for print. Observe that 'forPrintPreview' is the id of a div. The function for Print preview goes this way:
function PrintPreview() {
var Contractor= $('span[id*="lblCont"]').html();
printWindow = window.open("", "", "location=1,status=1,scrollbars=1,width=650,height=600");
printWindow.document.write('<html><head>');
printWindow.document.write('<style type="text/css">@media print{.no-print, .no-print *{display: none !important;}</style>');
printWindow.document.write('</head><body>');
printWindow.document.write('<div style="width:100%;text-align:right">');
//Print and cancel button
printWindow.document.write('<input type="button" id="btnPrint" value="Print" class="no-print" style="width:100px" onclick="window.print()" />');
printWindow.document.write('<input type="button" id="btnCancel" value="Cancel" class="no-print" style="width:100px" onclick="window.close()" />');
printWindow.document.write('</div>');
//You can include any data this way.
printWindow.document.write('<table><tr><td>Contractor name:'+ Contractor +'</td></tr>you can include any info here</table');
printWindow.document.write(document.getElementById('forPrintPreview').innerHTML);
//here 'forPrintPreview' is the id of the 'div' in current page(aspx).
printWindow.document.write('</body></html>');
printWindow.document.close();
printWindow.focus();
}
Observe that buttons 'print' and 'cancel' has the css class 'no-print', So these buttons will not appear in the print.
There is an exception (I'm using SQL 2014) when you are only using Insert/Update/Delete on Declared-Tables. These Insert/Update/Delete statements cannot contain an OUTPUT statement. The other restriction is that you are not allowed to do a MERGE, even into a Declared-Table. I broke up my Merge statements, that didn't work, into Insert/Update/Delete statements that did work.
The reason I didn't convert it to a stored-procedure is that the table-function was faster (even without the MERGE) than the stored-procedure. This is despite the stored-procedure allowing me to use Temp-Tables that have statistics. I needed the table-function to be very fast, since it is called 20-K times/day. This table function never updates the database.
I also noticed that the NewId() and RAND() SQL functions are not allowed in a function.
If your application theme is AppTheme(or anything else), then in styles.xml add the following code:
<style name="HiddenTitleTheme" parent="AppTheme">
<item name="windowNoTitle">true</item>
<item name="windowActionBar">false</item>
</style>
Then in manifest file add the following in the activity tag for which you want to disable activity label:
android:theme="@style/HiddenTitleTheme"
There is good uses of public nested members too...
Nested classes have access to the private members of the outer class. So a scenario where this is the right way would be when creating a Comparer (ie. implementing the IComparer interface).
In this example, the FirstNameComparer has access to the private _firstName member, which it wouldn't if the class was a separate class...
public class Person
{
private string _firstName;
private string _lastName;
private DateTime _birthday;
//...
public class FirstNameComparer : IComparer<Person>
{
public int Compare(Person x, Person y)
{
return x._firstName.CompareTo(y._firstName);
}
}
}
According to the latest document when state is set to be directory, you don't need to use parameter recurse to create parent directories, file module will take care of it.
- name: create directory with parent directories
file:
path: /data/test/foo
state: directory
this is fare enough to create the parent directories data and test with foo
please refer the parameter description - "state" http://docs.ansible.com/ansible/latest/modules/file_module.html
Live Demo ,try this,
$('#from').datepicker(
{
minDate: 0,
beforeShow: function() {
$(this).datepicker('option', 'maxDate', $('#to').val());
}
});
$('#to').datepicker(
{
defaultDate: "+1w",
beforeShow: function() {
$(this).datepicker('option', 'minDate', $('#from').val());
if ($('#from').val() === '') $(this).datepicker('option', 'minDate', 0);
}
});
I have been having the same issue and tried everything written here but it was still giving me the same error. Turned out to be NULL value in the column which I was trying to convert.
Removing the NULL value solved my issue.
Cheers, Ahmed
it works, all you need:
PHP:
header('Access-Control-Allow-Origin: http://www.example.com');
header("Access-Control-Allow-Credentials: true");
header('Access-Control-Allow-Methods: GET, PUT, POST, DELETE, OPTIONS');
JS (jQuery ajax):
var getWBody = $.ajax({ cache: false,
url: URL,
dataType : 'json',
type: 'GET',
xhrFields: { withCredentials: true }
});
For non-printable keys such as arrow keys and shortcut keys such as Ctrl-z, Ctrl-x, Ctrl-c that may trigger some action in the browser (for instance, inside editable documents or elements), you may not get a keypress event in all browsers. For this reason you have to use keydown
instead, if you're interested in suppressing the browser's default action. If not, keyup
will do just as well.
Attaching a keydown
event to document
works in all the major browsers:
document.onkeydown = function(evt) {
evt = evt || window.event;
if (evt.ctrlKey && evt.keyCode == 90) {
alert("Ctrl-Z");
}
};
For a complete reference, I strongly recommend Jan Wolter's article on JavaScript key handling.
Wouldn't it be better to not use any dynamic types for this, and let your class implement an interface. Then, you can check at runtime wether an object implements that interface, and thus, has the expected method (or property).
public interface IMyInterface
{
void Somemethod();
}
IMyInterface x = anyObject as IMyInterface;
if( x != null )
{
x.Somemethod();
}
I think this is the only correct way.
The thing you're referring to is duck-typing, which is useful in scenarios where you already know that the object has the method, but the compiler cannot check for that. This is useful in COM interop scenarios for instance. (check this article)
If you want to combine duck-typing with reflection for instance, then I think you're missing the goal of duck-typing.
I had this problem and I realized that I was assuming that Geocoding came with the JS maps API. However, it is a separate API which I hadn't enabled in the cloud console. Enabling it fixed it right away.
Example for Transaction
begin tran tt
Your sql statements
if error occurred rollback tran tt else commit tran tt
As long as you have not executed commit tran tt , data will not be changed
EXPLAIN PLAN FOR
In SQL Developer, you don't have to use EXPLAIN PLAN FOR
statement. Press F10
or click the Explain Plan icon.
It will be then displayed in the Explain Plan window.
If you are using SQL*Plus then use DBMS_XPLAN.
For example,
SQL> EXPLAIN PLAN FOR
2 SELECT * FROM DUAL;
Explained.
SQL> SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY);
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------
Plan hash value: 272002086
--------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
--------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 2 | 2 (0)| 00:00:01 |
| 1 | TABLE ACCESS FULL| DUAL | 1 | 2 | 2 (0)| 00:00:01 |
--------------------------------------------------------------------------
8 rows selected.
SQL>
Use the ComboStyle property:
comboBox.DropDownStyle = ComboBoxStyle.DropDownList;
jQuery .removeClass()
documentation.
One or more CSS classes to remove from the elements, these are separated by spaces.
Try below code
I will recommend to use error handler while using vlookup because error might occur when the lookup_value is not found.
Private Sub ComboBox1_Change()
On Error Resume Next
Ret = Application.WorksheetFunction.VLookup(Me.ComboBox1.Value, Worksheets("Sheet3").Range("Names"), 2, False)
On Error GoTo 0
If Ret <> "" Then MsgBox Ret
End Sub
OR
On Error Resume Next
Result = Application.VLookup(Me.ComboBox1.Value, Worksheets("Sheet3").Range("Names"), 2, False)
If Result = "Error 2042" Then
'nothing found
ElseIf cell <> Result Then
MsgBox cell.Value
End If
On Error GoTo 0
back to 2017:
use URL.createObjectURL( file ) to create local link to file system that user select;
don't forgot to free memory by using URL.revokeObjectURL()
As @Raheel Answered it will fine but if you are working with Laravel 7/6
Then Eloquent whereIn
Query.
Example1:
$users = User::wherein('id',[1,2,3])->get();
Example2:
$users = DB::table('users')->whereIn('id', [1, 2, 3])->get();
Example3:
$ids = [1,2,3];
$users = User::wherein('id',$ids)->get();
Try to put android:gravity="center_vertical|right"
inside parent LinearLayout else as you are inside RelativeLayout you can put android:layout_centerInParent="true"
inside your scrollView
.
For swift 4.2, 5+
@IBOutlet weak var webView: UIWebView!
override func viewDidLoad() {
super.viewDidLoad()
//Func Gose Here
let url = URL(string: link)
let requestObj = URLRequest(url: url! as URL)
webView.loadRequest(requestObj)
}
On Ubuntu 18.04, I ran into this issue because the apt
package for wheel
does not include the wheel
command. I think pip tries to import the wheel
python package, and if that succeeds assumes that the wheel
command is also available. Ubuntu breaks that assumption.
The apt python3 code package is named python3-wheel
. This is installed automatically because python3-pip
recommends it.
The apt python3 wheel command package is named python-wheel-common
. Installing this too fixes the "failed building wheel" errors for me.
Got the error (in the function init) with the following code ;
"use strict" ;
var hdr ;
function init(){ // called on load
hdr = document.getElementById("hdr");
}
... while using the stock browser on a Samsung galaxy Fame ( crap phone which makes it a good tester ) - userAgent ; Mozilla/5.0 (Linux; U; Android 4.1.2; en-gb; GT-S6810P Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30
The same code works everywhere else I tried including the stock browser on an older HTC phone - userAgent ; Mozilla/5.0 (Linux; U; Android 2.3.5; en-gb; HTC_WildfireS_A510e Build/GRJ90) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1
The fix for this was to change
var hdr ;
to
var hdr = null ;
I was facing the same issue.The dtypes of y_test and y_pred were different. Make sure that the dtypes are same for both.
x = int(input("Give starting number: "))
y = int(input("Give ending number: "))
P.S. Add function int()
Do not create separate lists; create a list of lists:
results = []
with open('inputfile.txt') as inputfile:
for line in inputfile:
results.append(line.strip().split(','))
or better still, use the csv
module:
import csv
results = []
with open('inputfile.txt', newline='') as inputfile:
for row in csv.reader(inputfile):
results.append(row)
Lists or dictionaries are far superiour structures to keep track of an arbitrary number of things read from a file.
Note that either loop also lets you address the rows of data individually without having to read all the contents of the file into memory either; instead of using results.append()
just process that line right there.
Just for completeness sake, here's the one-liner compact version to read in a CSV file into a list in one go:
import csv
with open('inputfile.txt', newline='') as inputfile:
results = list(csv.reader(inputfile))
None of these worked for me.
I was experiencing this issue in only once particular class. What finally worked for me was to delete the offending class and recreate it. Problem solved... mystery not so much!
If I'm not mistaken this is usually handled via a timeout.
You need a semicolon after font-family: Arial, Helvetica, sans-serif
. This will make your updated code the following:
<!DOCTYPE>
<html>
<head>
<title>DIV Font</title>
<style>
.my_text
{
font-family: Arial, Helvetica, sans-serif;
font-size: 40px;
font-weight: bold;
}
</style>
</head>
<body>
<div class="my_text">some text</div>
</body>
</html>
I don't know of any JVM that actually checks the JAVA_OPTS
environment variable. Usually this is used in scripts which launch the JVM and they usually just add it to the java
command-line.
The key thing to understand here is that arguments to java
that come before the -jar analyse.jar
bit will only affect the JVM and won't be passed along to your program. So, modifying the java
line in your script to:
java $JAVA_OPTS -jar analyse.jar $*
Should "just work".
$localIP = getHostByName(php_uname('n'));
$localIP = getHostByName(getHostName());
I have written a custom piece of code to do this
If you want to replace ,
with .
, remove translate_decimals functions completely.
var input = document.querySelector('input[role="custom-number"]');_x000D_
var bincr = document.querySelector('button[role="increment"]');_x000D_
var bdecr = document.querySelector('button[role="decrement"]');_x000D_
_x000D_
function translate_decimals(side = 0)_x000D_
{_x000D_
input.value = (side == ',' ? input.value.replace('.',',') : input.value.replace(',','.'));_x000D_
}_x000D_
translate_decimals(',');_x000D_
_x000D_
bincr.addEventListener('click', ()=>{_x000D_
if (input.hasAttribute('max'))_x000D_
{_x000D_
if (input.value.substr(0,input.getAttribute('max').length) == input.getAttribute('max').substr(0,input.getAttribute('max').length))_x000D_
{_x000D_
return;_x000D_
}_x000D_
else_x000D_
{_x000D_
translate_decimals('.');_x000D_
let temp = input.value;_x000D_
input.value = "";_x000D_
input.value = (input.hasAttribute('step') ? (parseFloat(temp) + parseFloat(input.getAttribute('step'))) : temp++);_x000D_
translate_decimals(',');_x000D_
}_x000D_
}_x000D_
});_x000D_
_x000D_
bdecr.addEventListener('click', ()=>{_x000D_
if (input.hasAttribute('min'))_x000D_
{_x000D_
if (input.value.substr(0,input.getAttribute('min').length) == input.getAttribute('min').substr(0,input.getAttribute('min').length))_x000D_
{_x000D_
return;_x000D_
}_x000D_
else_x000D_
{_x000D_
translate_decimals('.');_x000D_
input.value = (input.hasAttribute('step') ? (input.value - input.getAttribute('step')) : input.value--);_x000D_
translate_decimals(',');_x000D_
}_x000D_
}_x000D_
});
_x000D_
/* styling increment & decrement buttons */_x000D_
button[role="increment"],_x000D_
button[role="decrement"] {_x000D_
width:32px;_x000D_
}
_x000D_
<input type="text" role="custom-number" step="0.01" min="0" max="0" lang="en" value="1.99">_x000D_
<button role="increment">+</button>_x000D_
<button role="decrement">-</button>
_x000D_
I had the same problem. My fix was to add headers to my PHP script which are present only when in dev environment.
This allows cross-domain requests:
header("Access-Control-Allow-Origin: *");
This tells the preflight request that it is OK for the client to send any headers it wants:
header("Access-Control-Allow-Headers: *");
This way there is no need to modify the request.
If you have sensitive data in your dev database that might potentially be leaked, then you might think twice about this.
For the above issue, first of all if suppose tables contains more than 1 primary key then first remove all those primary keys and add first AUTO INCREMENT field as primary key then add another required primary keys which is removed earlier. Set AUTO INCREMENT option for required field from the option area.
Use mysqli_fetch_row()
. Try this,
$query = "SELECT ssfullname, ssemail FROM userss WHERE user_id = ".$user_id;
$result = mysqli_query($conn, $query);
$row = mysqli_fetch_row($result);
$ssfullname = $row['ssfullname'];
$ssemail = $row['ssemail'];
You may try this (using jQuery
)
$(function(){_x000D_
$('#MainPopupIframe').load(function(){_x000D_
$(this).show();_x000D_
console.log('iframe loaded successfully')_x000D_
});_x000D_
_x000D_
$('#click').on('click', function(){_x000D_
$('#MainPopupIframe').attr('src', 'https://heera.it'); _x000D_
});_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<button id='click'>click me</button>_x000D_
_x000D_
<iframe style="display:none" id='MainPopupIframe' src='' /></iframe>
_x000D_
Update: Using plain javascript
window.onload=function(){_x000D_
var ifr=document.getElementById('MainPopupIframe');_x000D_
ifr.onload=function(){_x000D_
this.style.display='block';_x000D_
console.log('laod the iframe')_x000D_
};_x000D_
var btn=document.getElementById('click'); _x000D_
btn.onclick=function(){_x000D_
ifr.src='https://heera.it'; _x000D_
};_x000D_
};
_x000D_
<button id='click'>click me</button>_x000D_
_x000D_
<iframe style="display:none" id='MainPopupIframe' src='' /></iframe>
_x000D_
Update: Also you can try this (dynamic iframe)
$(function(){_x000D_
$('#click').on('click', function(){_x000D_
var ifr=$('<iframe/>', {_x000D_
id:'MainPopupIframe',_x000D_
src:'https://heera.it',_x000D_
style:'display:none;width:320px;height:400px',_x000D_
load:function(){_x000D_
$(this).show();_x000D_
alert('iframe loaded !');_x000D_
}_x000D_
});_x000D_
$('body').append(ifr); _x000D_
});_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<button id='click'>click me</button><br />
_x000D_
How about:
df <- data.frame(matrix(ncol = 3, nrow = 0))
x <- c("name", "age", "gender")
colnames(df) <- x
To do all these operations in one-liner:
setNames(data.frame(matrix(ncol = 3, nrow = 0)), c("name", "age", "gender"))
#[1] name age gender
#<0 rows> (or 0-length row.names)
Or
data.frame(matrix(ncol=3,nrow=0, dimnames=list(NULL, c("name", "age", "gender"))))
Be aware that the path under src/main/resources must match the package path of your .class files wishing to access the resource. See my answer here.
If you just want to know the mean, you can use
summary(results)
It will give you more information than expected.
ex) Mininum value, 1st Qu., Median, Mean, 3rd Qu. Maxinum value, number of NAs.
Furthermore, If you want to get mean values of each column, you can simply use the method below.
mean(results$columnName, na.rm = TRUE)
That will return mean value. (you have to change 'columnName' to your variable name
You can also do
subset(df, aged <= laclen)
Or use directly the InputStream
of the resource using the absolute CLASSPATH path (starting with the /
slash character):
getClass().getResourceAsStream("/com/path/to/file.txt");
Or relative CLASSPATH path (when the class you are writing is in the same Java package as the resource file itself, i.e. com.path.to
):
getClass().getResourceAsStream("file.txt");
Had the same issue with Ionic routing.
Simple solution is to use the name of the state - basically state.go(state name)
.state('tab.search', {
url: '/search',
views: {
'tab-search': {
templateUrl: 'templates/search.html',
controller: 'SearchCtrl'
}
}
})
And in controller you can use $state.go('tab.search');
For closure, I think the answer to this question is that there is no solution. The only way to get the behavior I want is with javascript.
Source: java-implementation-of-rubys-gsub
Usage:
// Rewrite an ancient unit of length in SI units.
String result = new Rewriter("([0-9]+(\\.[0-9]+)?)[- ]?(inch(es)?)") {
public String replacement() {
float inches = Float.parseFloat(group(1));
return Float.toString(2.54f * inches) + " cm";
}
}.rewrite("a 17 inch display");
System.out.println(result);
// The "Searching and Replacing with Non-Constant Values Using a
// Regular Expression" example from the Java Almanac.
result = new Rewriter("([a-zA-Z]+[0-9]+)") {
public String replacement() {
return group(1).toUpperCase();
}
}.rewrite("ab12 cd efg34");
System.out.println(result);
Implementation (redesigned):
import static java.lang.String.format;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public abstract class Rewriter {
private Pattern pattern;
private Matcher matcher;
public Rewriter(String regularExpression) {
this.pattern = Pattern.compile(regularExpression);
}
public String group(int i) {
return matcher.group(i);
}
public abstract String replacement() throws Exception;
public String rewrite(CharSequence original) {
return rewrite(original, new StringBuffer(original.length())).toString();
}
public StringBuffer rewrite(CharSequence original, StringBuffer destination) {
try {
this.matcher = pattern.matcher(original);
while (matcher.find()) {
matcher.appendReplacement(destination, "");
destination.append(replacement());
}
matcher.appendTail(destination);
return destination;
} catch (Exception e) {
throw new RuntimeException("Cannot rewrite " + toString(), e);
}
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(pattern.pattern());
for (int i = 0; i <= matcher.groupCount(); i++)
sb.append(format("\n\t(%s) - %s", i, group(i)));
return sb.toString();
}
}
Spring framework itself handles json conversion when controller is annotated properly.
For eg:
@PutMapping(produces = {"application/json"})
@ResponseBody
public UpdateResponse someMethod(){ //do something
return UpdateResponseInstance;
}
Here spring internally converts the UpdateResponse object to corresponding json string and returns it. In order to do it spring internally uses Jackson library.
If you require a json representation of a model object anywhere apart from controller then you can use objectMapper provided by jackson. Model should be properly annotated for this to work.
Eg:
ObjectMapper mapper = new ObjectMapper();
SomeModelClass someModelObject = someModelRepository.findById(idValue).get();
mapper.writeValueAsString(someModelObject);
Make sure your config is set to the project -
gcloud config set project [PROJECT_ID]
Run a checklist of the Clusters in the account:
gcloud container clusters list
Check the output :
NAME LOCATION MASTER_VERSION MASTER_IP MACHINE_TYPE NODE_VE. alpha-cluster asia-south1-a 1.9.7-gke.6 35.200.254.78 f1-micro 1.9.7- NUM_NODES STATUS gke.6 3 RUNNING
Run the following cmd to fetch credentials for your running cluster:
gcloud container clusters get-credentials your-cluster-name --zone your-zone --project your-project
Fetching cluster endpoint and auth data. kubeconfig entry generated for alpha-cluster.
kubectl
such as below to list all pods in the current namespace, with more details:$ kubectl get nodes -o wide
Should be good to go.
Try:
SELECT * FROM information_schema.statistics
WHERE table_schema = [DATABASE NAME]
AND table_name = [TABLE NAME] AND column_name = [COLUMN NAME]
It will tell you if there is an index of any kind on a certain column without the need to know the name given to the index. It will also work in a stored procedure (as opposed to show index)
log4j.logger.org.hibernate=INFO, hb
log4j.logger.org.hibernate.SQL=DEBUG
log4j.logger.org.hibernate.type=TRACE
log4j.logger.org.hibernate.hql.ast.AST=info
log4j.logger.org.hibernate.tool.hbm2ddl=warn
log4j.logger.org.hibernate.hql=debug
log4j.logger.org.hibernate.cache=info
log4j.logger.org.hibernate.jdbc=debug
log4j.appender.hb=org.apache.log4j.ConsoleAppender
log4j.appender.hb.layout=org.apache.log4j.PatternLayout
log4j.appender.hb.layout.ConversionPattern=HibernateLog --> %d{HH:mm:ss} %-5p %c - %m%n
log4j.appender.hb.Threshold=TRACE
<property name="show_sql">true</property>
<property name="format_sql">true</property>
<property name="use_sql_comments">true</property>
Some frameworks use persistence.xml
:
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.format_sql" value="true"/>
<property name="hibernate.use_sql_comments" value="true"/>
Have a look at this answer, it discusses internally routing HTTP through direct Objective-C calls to an HTTP-capable layer/embedded web server (let's assume that the HTTP server code is within the same application that wishes to display the HTML within a web widget).
This has the advantage of being slightly more secure (and possibly faster) as no port(s) should be exposed.
See if your script is running GPU in Task manager. If not, suspect your CUDA version is right one for the tensorflow version you are using, as the other answers suggested already.
Additionally, a proper CUDA DNN library for the CUDA version is required to run GPU with tensorflow. Download/extract it from here and put the DLL (e.g., cudnn64_7.dll) into CUDA bin folder (e.g., C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v10.1\bin).
RUN
and ENTRYPOINT
are two different ways to execute a script.
RUN
means it creates an intermediate container, runs the script and freeze the new state of that container in a new intermediate image. The script won't be run after that: your final image is supposed to reflect the result of that script.
ENTRYPOINT
means your image (which has not executed the script yet) will create a container, and runs that script.
In both cases, the script needs to be added, and a RUN chmod +x /bootstrap.sh
is a good idea.
It should also start with a shebang (like #!/bin/sh
)
Considering your script (bootstrap.sh
: a couple of git config --global
commands), it would be best to RUN
that script once in your Dockerfile
, but making sure to use the right user (the global git config
file is %HOME%/.gitconfig
, which by default is the /root
one)
Add to your Dockerfile:
RUN /bootstrap.sh
Then, when running a container, check the content of /root/.gitconfig
to confirm the script was run.
if you are using eclipse goto DDMS and then file explorer there you will see System/Apps folder and the apks are there
You can add manually in the manifest file within manifest tag by:
<uses-permission android:name="android.permission.CAMERA"/>
This permission is required to be able to access the camera device.
You just need to create the user mysql
(mysql installation script creates _mysql)
sudo vipw
duplicate line that contains _mysql
Change for the duplicated line _mysql
to mysql
sudo /usr/local/mysql/support-files/mysql.server start
Starting MySQL
.. SUCCESS!
The simplest solution would be
"\x00" * size # for a buffer of binary zeros
[0] * size # for a list of integer zeros
In general you should use more pythonic code like list comprehension (in your example: [0 for unused in xrange(100)]
) or using string.join
for buffers.
Thank you very much! Finally I solved the blurred pixels problem with this code:
<canvas id="graph" width=326 height=240 style='width:326px;height:240px'></canvas>
With the addition of the 'half-pixel' does the trick to unblur lines.
Our team uses dropbox for ad-hoc distribution which uses https but still our app was failing to install. After much trouble-shooting we realized that the title field is required too. Whenever we sent out a link without this field safari ignored the link and did not prompt the user to install. Sometimes for quick development tests we skipped over the title node in the xml and not populate it. In case this is helpful for anyone having this issue make sure that your .plist contains the following nodes populated:
....
<string>software</string>
<key>title</key>
<string>Your App Name</string>
...
Node's crypto module API is still unstable.
As of version 4.0.0, the native Crypto module is not unstable anymore. From the official documentation:
Crypto
Stability: 2 - Stable
The API has proven satisfactory. Compatibility with the npm ecosystem is a high priority, and will not be broken unless absolutely necessary.
So, it should be considered safe to use the native implementation, without external dependencies.
For reference, the modules mentioned bellow were suggested as alternative solutions when the Crypto module was still unstable.
You could also use one of the modules sha1 or md5 which both do the job.
$ npm install sha1
and then
var sha1 = require('sha1');
var hash = sha1("my message");
console.log(hash); // 104ab42f1193c336aa2cf08a2c946d5c6fd0fcdb
or
$ npm install md5
and then
var md5 = require('md5');
var hash = md5("my message");
console.log(hash); // 8ba6c19dc1def5702ff5acbf2aeea5aa
(MD5 is insecure but often used by services like Gravatar.)
The API of these modules won't change!
An alternate way is to construct a view which is then queried just like a table. In many database managers using a view can result in better performance.
CREATE VIEW xyz SELECT q.question, a.alternative
FROM tbl_question AS q, tbl_alternative AS a
WHERE q.categoryid = a.categoryid
AND q._id = a.questionid;
This is from memory so there may be some syntactic issues. http://www.sqlite.org/lang_createview.html
I mention this approach because then you can use SQLiteQueryBuilder with the view as you implied that it was preferred.
Internet explorer has a reset to factory button and luckily so does chrome! try the link below and let us know. the other option is to stop chrome and delete the c:\users\%username%\appdata\local\google folder entirely then reinstall chrome but this will loose all you local settings and data.
Google doc on how to factory reset: https://support.google.com/chrome/answer/3296214?hl=en
This will work on most modern browsers...apart from IE (browser support). Even though that page lists >= IE9 as supported, my tests didn't agree with that.
You can use the calc() css3 property like so;
.class_name {
background-position: calc(100% - 10px) 50%;
}
For me this is the cleanest and most logical way to achieve a margin to the right. I also use a fallback of using border-right: 10px solid transparent;
for IE.
Update 2016:
As of gcc 6 (changes), the default C++ dialect is C++14. That means that unless you explicitly need a newer or older dialect than than, you don't need to do anything with eclipse anymore.
This community wiki section incorporates the answer by Trismegistos;
1. Before creating project, configure Eclipse syntax parser:
Window -> Preferences -> C/C++ -> Build -> Settings -> Discovery -> CDT GCC Build-in Compiler Settings
in the text box entitled Command to get compiler specs append -std=c++14
2. Create project, configuration depends on what kind of project you created:
For project created as: File -> New -> Project -> C/C++ -> C++ Project
Right click on created project and open
Properties -> C/C++ Build -> Settings -> Tool Settings -> GCC C++ Compiler -> Dialect
Put -std=c++14
into text box entitled other dialect flags or select ISO C++11 from the Language standard drop down.
For most recent versions: (Currently Juno and Kepler Luna):
Under newer versions of Juno the settings are located at Project properties -> C/C++ General -> Preprocessor Include Paths, Macros etc. -> tab Providers -> CDT GCC Builtin Compiler Settings ()
.
Older versions 2012/2013:
Under C/C++ Build (at project settings), find the Preprocessor Include Path and go to the Providers Tab. Deselect all except CDT GCC Builtin Compiler Settings. Then untag Share settings entries … . Add the option -std=c++11 to the text box called Command to get compiler specs.
Go to paths and symbols. Under Symbols, click restore defaults, and then apply.
Notes:
Eclipse is picky about hitting apply, you need to do it every time you leave a settings tab.
[Self-promotion]: I wrote my own more detailed instructions based on the above. http://scrupulousabstractions.tumblr.com/post/36441490955/eclipse-mingw-builds
Thanks to the user Nobody
at https://stackoverflow.com/a/13635080/1149664
As of Typescript 3.5, the Omit helper will be included: TypeScript 3.5 RC - The Omit Helper Type
You can use it directly, and you should remove your own definition of the Omit helper when updating.
Use the frameborder attribute on your iframe and set it to frameborder="0" . That produces the seamless look. Now you maybe saying I want the nested iframe to control rather I have scroll bars. Then you need to whip up a JavaScript script file that calculates height minus any headers and set the height. Debounce is javascript plugin needed to make sure resize works appropriately in older browsers and sometimes chrome. That will get you in the right direction.
$( document.activeElement )
Will retrieve it without having to search the whole DOM tree as recommended on the jQuery documentation
This formula reflects @RHSeeger's thought as a simple solution to get (in this example) the last day of the 3rd month (month of date in cell A1 + 4 with the first day of that month minus 1 day):
=DATE(YEAR(A1);MONTH(A1)+4;1)-1
Very precise, inclusive February's in leap years :)
to add on top of @Sushant Chaudhary's answer
in my case, I got another error regarding lxml as below
copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\readme.txt -> build\lib.win-amd64-3.7\lxml\isoschematron\resources\xsl\iso-schematron-xslt1
running build_ext
building 'lxml.etree' extension
error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools
I had to install lxml-4.2.3-cp37-cp37m-win_amd64.whl same way as in the answer of @Sushant Chaudhary to successfully complete installation of Scrapy.
pip install <file-name>
now you can run pip install scrapy
Something I don't like about ActionSelectName is that IsValidName is called for every action method in the controller; I don't know why it works this way. I like a solution where every button has a different name based on what it does, but I don't like the fact that you have to have as many parameters in the action method as buttons in the form. I have created an enum for all button types:
public enum ButtonType
{
Submit,
Cancel,
Delete
}
Instead of ActionSelectName, I use an ActionFilter:
public class MultipleButtonsEnumAttribute : ActionFilterAttribute
{
public Type EnumType { get; set; }
public MultipleButtonsEnumAttribute(Type enumType)
{
EnumType = enumType;
}
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
foreach (var key in filterContext.HttpContext.Request.Form.AllKeys)
{
if (Enum.IsDefined(EnumType, key))
{
var pDesc = filterContext.ActionDescriptor.GetParameters()
.FirstOrDefault(x => x.ParameterType == EnumType);
filterContext.ActionParameters[pDesc.ParameterName] = Enum.Parse(EnumType, key);
break;
}
}
}
}
The filter will find the button name in the form data and if the button name matches any of the button types defined in the enum, it will find the ButtonType parameter among the action parameters:
[MultipleButtonsEnumAttribute(typeof(ButtonType))]
public ActionResult Manage(ButtonType buttonPressed, ManageViewModel model)
{
if (button == ButtonType.Cancel)
{
return RedirectToAction("Index", "Home");
}
//and so on
return View(model)
}
and then in views, I can use:
<input type="submit" value="Button Cancel" name="@ButtonType.Cancel" />
<input type="submit" value="Button Submit" name="@ButtonType.Submit" />
raise ValueError('could not find %c in %s' % (ch,str))
I was successfully able to debug signed APK , Follow this procedure:-
Build.gradle
for the module set debuggable true
for release build type Mysql isn't very clever. When you want to use the same timestamp in multiple update or insert queries, you need to declare a variable.
When you use the now()
function, the system will call the current timestamp every time you call it in another query.
Outdated answer. Please use
dplyr::sample_frac()
ordplyr::sample_n()
instead.
In my R package there is a function sample.rows
just for this purpose:
install.packages('kimisc')
library(kimisc)
example(sample.rows)
smpl..> set.seed(42)
smpl..> sample.rows(data.frame(a=c(1,2,3), b=c(4,5,6),
row.names=c('a', 'b', 'c')), 10, replace=TRUE)
a b
c 3 6
c.1 3 6
a 1 4
c.2 3 6
b 2 5
b.1 2 5
c.3 3 6
a.1 1 4
b.2 2 5
c.4 3 6
Enhancing sample
by making it a generic S3 function was a bad idea, according to comments by Joris Meys to a previous answer.
It is possible. Here is some step by step:
In $PROJECT_DIR/jni/Application.mk:
APP_STL := stlport_static
I tried using stlport_shared, but no luck. Same with libstdc++.
In $PROJECT_DIR/jni/Android.mk:
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := hello-jni
LOCAL_SRC_FILES := hello-jni.cpp
LOCAL_LDLIBS := -llog
include $(BUILD_SHARED_LIBRARY)
Nothing special here, but make sure your files are .cpp.
In $PROJECT_DIR/jni/hello-jni.cpp:
#include <string.h>
#include <jni.h>
#include <android/log.h>
#include <iostream>
#include <vector>
#define LOG_TAG "hellojni"
#define LOGI(...) __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__)
#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)
#ifdef __cplusplus
extern "C" {
#endif
// Comments omitted.
void
Java_com_example_hellojni_HelloJni_stringFromJNI( JNIEnv* env,
jobject thiz )
{
std::vector<std::string> vec;
// Go ahead and do some stuff with this vector of strings now.
}
#ifdef __cplusplus
}
#endif
The only thing that bite me here was #ifdef __cplusplus.
Watch the directories.
To compile, use ndk-build clean && ndk-build
.
I wanted to sort of add why you would do things that way to the already great answers.
No idea what language you are coming from, but assuming it is a static language, this sort of thing will look familiar. This is how you read a file in java
public class FileInput {
public static void main(String[] args) {
File file = new File("C:\\MyFile.txt");
FileInputStream fis = null;
BufferedInputStream bis = null;
DataInputStream dis = null;
try {
fis = new FileInputStream(file);
// Here BufferedInputStream is added for fast reading.
bis = new BufferedInputStream(fis);
dis = new DataInputStream(bis);
// dis.available() returns 0 if the file does not have more lines.
while (dis.available() != 0) {
// this statement reads the line from the file and print it to
// the console.
System.out.println(dis.readLine());
}
// dispose all the resources after using them.
fis.close();
bis.close();
dis.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Ignoring the whole stream chaining thing, The idea is this
This is how you do it in ruby
File.open("readfile.rb", "r") do |infile|
while (line = infile.gets)
puts "#{counter}: #{line}"
counter = counter + 1
end
end
Wildly different. Breaking this one down
Here, instead of handling step one and two, you basically delegate that off into another class. As you can see, that dramatically brings down the amount of code you have to write, which makes things easier to read, and reduces the chances of things like memory leaks, or file locks not getting cleared.
Now, its not like you can't do something similar in java, in fact, people have been doing it for decades now. It's called the Strategy pattern. The difference is that without blocks, for something simple like the file example, strategy becomes overkill due to the amount of classes and methods you need to write. With blocks, it is such a simple and elegant way of doing it, that it doesn't make any sense NOT to structure your code that way.
This isn't the only way blocks are used, but the others (like the Builder pattern, which you can see in the form_for api in rails) are similar enough that it should be obvious whats going on once you wrap your head around this. When you see blocks, its usually safe to assume that the method call is what you want to do, and the block is describing how you want to do it.
Since the getTime function of the Date object gets the milliseconds since 1970/01/01, we can do this:
var time = '12:23:00';
var seconds = new Date('1970-01-01T' + time + 'Z').getTime() / 1000;
This is the kind of stuff sed
was made for (of course, you need sed on your system for that).
sed 's/ex3/ex5/g' input.txt > output.txt
You will either need a Unix system or a Windows Cygwin kind of platform for this.
There is also GnuWin32 for sed. (GnuWin32 installation and usage).
HTML:
<div class="thumbnail">
</div>
CSS:
.thumbnail {
background: url(image.jpg) 50% 50% no-repeat; /* 50% 50% centers image in div */
width: 250px;
height: 250px;
}
You can also check for socket output stream error while writing to client socket.
out.println(output);
if(out.checkError())
{
throw new Exception("Error transmitting data.");
}
mongo => mongo-db console
mongodb => mongo-db server
If you're on Mac and looking for a easier way to start/stop your mongo-db server, then MongoDB Preference Pane is something that you should look into. With it, you start/stop your mongo-db instance via UI. Hope it helps!
If the string is at the beginning of the name, you can do this
$ compgen -f .bash
.bashrc
.bash_profile
.bash_prompt
Below is the information about screen sizes. These details are taken from the apple website
Yes, git rm <filename>
will stage the deleted state of a file, where <filename>
could be a glob pattern:
$ git rm modules/welcome/language/*/kaimonokago_lang.php
rm modules/welcome/language/english/kaimonokago_lang.php
rm modules/welcome/language/french/kaimonokago_lang.php
rm modules/welcome/language/german/kaimonokago_lang.php
rm modules/welcome/language/norwegian/kaimonokago_lang.php
$ git status
# On branch master
# Changes to be committed:
# (use "git reset HEAD <file>..." to unstage)
#
# deleted: modules/welcome/language/english/kaimonokago_lang.php
# ...
Then, you can commit.
git commit -a
will do this in one go, if you want.
You can also use git add -u
to stage all the changes, including all the deleted files, then commit.
Don't we all sometimes wish there was a
<T>void java.util.Arrays.deepFill(T[]…multiDimensional)
. Problems start with
Object threeByThree[][] = new Object[3][3];
threeByThree[1] = null;
and
threeByThree[2][1] = new int[]{42};
being perfectly legal.
(If only Object twoDim[]final[]
was legal and well defined…)
(Using one of the public methods from below keeps loops from the calling source code.
If you insist on using no loops at all, substitute the loops and the call to Arrays.fill()
(!) using recursion.)
/** Fills matrix {@code m} with {@code value}.
* @return {@code m}'s dimensionality.
* @throws java.lang.ArrayStoreException if the component type
* of a subarray of non-zero length at the bottom level
* doesn't agree with {@code value}'s type. */
public static <T>int deepFill(Object[] m, T value) {
Class<?> components;
if (null == m ||
null == (components = m.getClass().getComponentType()))
return 0;
int dim = 0;
do
dim++;
while (null != (components = components.getComponentType()));
filler((Object[][])m, value, dim);
return dim;
}
/** Fills matrix {@code m} with {@code value}.
* @throws java.lang.ArrayStoreException if the component type
* of a subarray of non-zero length at level {@code dimensions}
* doesn't agree with {@code value}'s type. */
public static <T>void fill(Object[] m, T value, int dimensions) {
if (null != m)
filler(m, value, dimensions);
}
static <T>void filler(Object[] m, T value, int toGo) {
if (--toGo <= 0)
java.util.Arrays.fill(m, value);
else
for (Object[] subArray : (Object[][])m)
if (null != subArray)
filler(subArray, value, toGo);
}
You can access the MySQL command line with XAMPP for Windows
click XAMPP icon to launch its cPanel
click on Shell button
mysql -h localhost -u root
and click enterYou should see all the command lines and what they do
Setting environment for using XAMPP for Windows.
Your PC c:\xampp
# mysql -h localhost - root
mysql Ver 15.1 Distrib 10.1.19-MariaDB, for Win32 (AMD64)
Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.
Usage: mysql [OPTIONS] [database]
Default options are read from the following files in the given order:
C:\WINDOWS\my.ini C:\WINDOWS\my.cnf C:\my.ini C:\my.cnf C:\xampp\mysql\my.ini C:\xampp\mysql\my.cnf C:\xampp\mysql\bin\my.ini C:\xampp\mysql\bin\my.cnf
The following groups are read: mysql client client-server client-mariadb
The following options may be given as the first argument:
--print-defaults Print the program argument list and exit.
--no-defaults Don't read default options from any option file.
--defaults-file=# Only read default options from the given file #.
--defaults-extra-file=# Read this file after the global files are read.
-?, --help Display this help and exit.
-I, --help Synonym for -?
--abort-source-on-error
Abort 'source filename' operations in case of errors
--auto-rehash Enable automatic rehashing. One doesn't need to use
'rehash' to get table and field completion, but startup
and reconnecting may take a longer time. Disable with
--disable-auto-rehash.
(Defaults to on; use --skip-auto-rehash to disable.)
-A, --no-auto-rehash
No automatic rehashing. One has to use 'rehash' to get
table and field completion. This gives a quicker start of
mysql and disables rehashing on reconnect.
--auto-vertical-output
Automatically switch to vertical output mode if the
result is wider than the terminal width.
-B, --batch Don't use history file. Disable interactive behavior.
(Enables --silent.)
--character-sets-dir=name
Directory for character set files.
--column-type-info Display column type information.
-c, --comments Preserve comments. Send comments to the server. The
default is --skip-comments (discard comments), enable
with --comments.
-C, --compress Use compression in server/client protocol.
-#, --debug[=#] This is a non-debug version. Catch this and exit.
--debug-check Check memory and open file usage at exit.
-T, --debug-info Print some debug info at exit.
-D, --database=name Database to use.
--default-character-set=name
Set the default character set.
--delimiter=name Delimiter to be used.
-e, --execute=name Execute command and quit. (Disables --force and history
file.)
-E, --vertical Print the output of a query (rows) vertically.
-f, --force Continue even if we get an SQL error. Sets
abort-source-on-error to 0
-G, --named-commands
Enable named commands. Named commands mean this program's
internal commands; see mysql> help . When enabled, the
named commands can be used from any line of the query,
otherwise only from the first line, before an enter.
Disable with --disable-named-commands. This option is
disabled by default.
-i, --ignore-spaces Ignore space after function names.
--init-command=name SQL Command to execute when connecting to MySQL server.
Will automatically be re-executed when reconnecting.
--local-infile Enable/disable LOAD DATA LOCAL INFILE.
-b, --no-beep Turn off beep on error.
-h, --host=name Connect to host.
-H, --html Produce HTML output.
-X, --xml Produce XML output.
--line-numbers Write line numbers for errors.
(Defaults to on; use --skip-line-numbers to disable.)
-L, --skip-line-numbers
Don't write line number for errors.
-n, --unbuffered Flush buffer after each query.
--column-names Write column names in results.
(Defaults to on; use --skip-column-names to disable.)
-N, --skip-column-names
Don't write column names in results.
--sigint-ignore Ignore SIGINT (CTRL-C).
-o, --one-database Ignore statements except those that occur while the
default database is the one named at the command line.
-p, --password[=name]
Password to use when connecting to server. If password is
not given it's asked from the tty.
-W, --pipe Use named pipes to connect to server.
-P, --port=# Port number to use for connection or 0 for default to, in
order of preference, my.cnf, $MYSQL_TCP_PORT,
/etc/services, built-in default (3306).
--progress-reports Get progress reports for long running commands (like
ALTER TABLE)
(Defaults to on; use --skip-progress-reports to disable.)
--prompt=name Set the mysql prompt to this value.
--protocol=name The protocol to use for connection (tcp, socket, pipe,
memory).
-q, --quick Don't cache result, print it row by row. This may slow
down the server if the output is suspended. Doesn't use
history file.
-r, --raw Write fields without conversion. Used with --batch.
--reconnect Reconnect if the connection is lost. Disable with
--disable-reconnect. This option is enabled by default.
(Defaults to on; use --skip-reconnect to disable.)
-s, --silent Be more silent. Print results with a tab as separator,
each row on new line.
--shared-memory-base-name=name
Base name of shared memory.
-S, --socket=name The socket file to use for connection.
--ssl Enable SSL for connection (automatically enabled with
other flags).
--ssl-ca=name CA file in PEM format (check OpenSSL docs, implies
--ssl).
--ssl-capath=name CA directory (check OpenSSL docs, implies --ssl).
--ssl-cert=name X509 cert in PEM format (implies --ssl).
--ssl-cipher=name SSL cipher to use (implies --ssl).
--ssl-key=name X509 key in PEM format (implies --ssl).
--ssl-crl=name Certificate revocation list (implies --ssl).
--ssl-crlpath=name Certificate revocation list path (implies --ssl).
--ssl-verify-server-cert
Verify server's "Common Name" in its cert against
hostname used when connecting. This option is disabled by
default.
-t, --table Output in table format.
--tee=name Append everything into outfile. See interactive help (\h)
also. Does not work in batch mode. Disable with
--disable-tee. This option is disabled by default.
-u, --user=name User for login if not current user.
-U, --safe-updates Only allow UPDATE and DELETE that uses keys.
-U, --i-am-a-dummy Synonym for option --safe-updates, -U.
-v, --verbose Write more. (-v -v -v gives the table output format).
-V, --version Output version information and exit.
-w, --wait Wait and retry if connection is down.
--connect-timeout=# Number of seconds before connection timeout.
--max-allowed-packet=#
The maximum packet length to send to or receive from
server.
--net-buffer-length=#
The buffer size for TCP/IP and socket communication.
--select-limit=# Automatic limit for SELECT when using --safe-updates.
--max-join-size=# Automatic limit for rows in a join when using
--safe-updates.
--secure-auth Refuse client connecting to server if it uses old
(pre-4.1.1) protocol.
--server-arg=name Send embedded server this as a parameter.
--show-warnings Show warnings after every statement.
--plugin-dir=name Directory for client-side plugins.
--default-auth=name Default authentication client-side plugin to use.
--binary-mode By default, ASCII '\0' is disallowed and '\r\n' is
translated to '\n'. This switch turns off both features,
and also turns off parsing of all clientcommands except
\C and DELIMITER, in non-interactive mode (for input
piped to mysql or loaded using the 'source' command).
This is necessary when processing output from mysqlbinlog
that may contain blobs.
Variables (--variable-name=value)
and boolean options {FALSE|TRUE} Value (after reading options)
--------------------------------- ----------------------------------------
abort-source-on-error FALSE
auto-rehash FALSE
auto-vertical-output FALSE
character-sets-dir (No default value)
column-type-info FALSE
comments FALSE
compress FALSE
debug-check FALSE
debug-info FALSE
database (No default value)
default-character-set auto
delimiter ;
vertical FALSE
force FALSE
named-commands FALSE
ignore-spaces FALSE
init-command (No default value)
local-infile FALSE
no-beep FALSE
host localhost
html FALSE
xml FALSE
line-numbers TRUE
unbuffered FALSE
column-names TRUE
sigint-ignore FALSE
port 3306
progress-reports TRUE
prompt \N [\d]>
quick FALSE
raw FALSE
reconnect TRUE
shared-memory-base-name (No default value)
socket C:/xampp/mysql/mysql.sock
ssl FALSE
ssl-ca (No default value)
ssl-capath (No default value)
ssl-cert (No default value)
ssl-cipher (No default value)
ssl-key (No default value)
ssl-crl (No default value)
ssl-crlpath (No default value)
ssl-verify-server-cert FALSE
table FALSE
user (No default value)
safe-updates FALSE
i-am-a-dummy FALSE
connect-timeout 0
max-allowed-packet 16777216
net-buffer-length 16384
select-limit 1000
max-join-size 1000000
secure-auth FALSE
show-warnings FALSE
plugin-dir (No default value)
default-auth (No default value)
binary-mode FALSE
If you need to insert into a specific position in the array, you can do this:
case ADD_ITEM :
return {
...state,
arr: [
...state.arr.slice(0, action.pos),
action.newItem,
...state.arr.slice(action.pos),
],
}
If the string has both spaces and commas you can use the string class function
found_index = myString.find_first_of(delims_str, begin_index)
in a loop. Checking for != npos and inserting into a vector. If you prefer old school you can also use C's
strtok()
method.
npm install -g npm@[version] fixed the problem
After doing it both ways for a few projects my stance is that composer.lock
should not be committed as part of the project.
composer.lock
is build metadata which is not part of the project. The state of dependencies should be controlled through how you're versioning them (either manually or as part of your automated build process) and not arbitrarily by the last developer to update them and commit the lock file.
If you are concerned about your dependencies changing between composer updates then you have a lack of confidence in your versioning scheme. Versions (1.0, 1.1, 1.2, etc) should be immutable and you should avoid "dev-" and "X.*" wildcards outside of initial feature development.
Committing the lock file is a regression for your dependency management system as the dependency version has now gone back to being implicitly defined.
Also, your project should never have to be rebuilt or have its dependencies reacquired in each environment, especially prod. Your deliverable (tar, zip, phar, a directory, etc) should be immutable and promoted through environments without changing.
Paul Dardeau answer is perfect, the only thing is, what if all the files inside those folders are not PDF files and you want to grab it all no matter the extension. Well just change it to
find . -name "*.*" -type f -exec cp {} ./pdfsfolder \;
Just to sum up!
Install Mylyn connector for GitHub from this update site, it provides great integration: you can directly import your repositories using Import > Projects from Git > GitHub. You can set the default repository folder in Preferences > Git.
I don't if anybody else has a better option...
<% if (Model.VariableName == "" || Model.VariableName== null) { %>
<%= html.DropDpwnList("ListName", ((SelectList) ViewData["viewName"], "",
new{stlye=" "})%>
<% } else{ %>
<%= html.DropDpwnList("ListName", ((SelectList) ViewData["viewName"],
Model.VariableName, new{stlye=" "})%>
<% }>
In Spring every request will go through the DispatcherServlet. To avoid Static file request through DispatcherServlet(Front contoller) we configure MVC Static content.
Spring 3.1. introduced the ResourceHandlerRegistry to configure ResourceHttpRequestHandlers for serving static resources from the classpath, the WAR, or the file system. We can configure the ResourceHandlerRegistry programmatically inside our web context configuration class.
- we have added the
/js/**
pattern to the ResourceHandler, lets include thefoo.js
resource located in thewebapp/js/
directory- we have added the
/resources/static/**
pattern to the ResourceHandler, lets include thefoo.html
resource located in thewebapp/resources/
directory
@Configuration
@EnableWebMvc
public class StaticResourceConfiguration implements WebMvcConfigurer {
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
System.out.println("WebMvcConfigurer - addResourceHandlers() function get loaded...");
registry.addResourceHandler("/resources/static/**")
.addResourceLocations("/resources/");
registry
.addResourceHandler("/js/**")
.addResourceLocations("/js/")
.setCachePeriod(3600)
.resourceChain(true)
.addResolver(new GzipResourceResolver())
.addResolver(new PathResourceResolver());
}
}
XML Configuration
<mvc:annotation-driven />
<mvc:resources mapping="/staticFiles/path/**" location="/staticFilesFolder/js/"
cache-period="60"/>
Spring Boot MVC Static Content if the file is located in the WAR’s webapp/resources folder.
spring.mvc.static-path-pattern=/resources/static/**
Your current solution does not work because $time
is a string - it needs to be a Unix timestamp. You can do this instead:
$unix_time = strtotime('January 1 2010 '.$time); // create a unix timestamp
$startTime date( "H:i", strtotime('-30 minutes', $unix_time) );
$endTime date( "H:i", strtotime('+30 minutes', $unix_time) );
I prefer to use icon fonts (such as FontAwesome) since it's easy to modify their colours with CSS, and they scale really well on high pixel-density devices. So here's another pure CSS variant, using similar techniques to those above.
(Below is a static image so you can visualize the result; see the JSFiddle for an interactive version.)
As with other solutions, it uses the label
element. An adjacent span
holds our checkbox character.
span.bigcheck-target {_x000D_
font-family: FontAwesome; /* Use an icon font for the checkbox */_x000D_
}_x000D_
_x000D_
input[type='checkbox'].bigcheck {_x000D_
position: relative;_x000D_
left: -999em; /* Hide the real checkbox */_x000D_
}_x000D_
_x000D_
input[type='checkbox'].bigcheck + span.bigcheck-target:after {_x000D_
content: "\f096"; /* In fontawesome, is an open square (fa-square-o) */_x000D_
}_x000D_
_x000D_
input[type='checkbox'].bigcheck:checked + span.bigcheck-target:after {_x000D_
content: "\f046"; /* fontawesome checked box (fa-check-square-o) */_x000D_
}_x000D_
_x000D_
/* ==== Optional - colors and padding to make it look nice === */_x000D_
body {_x000D_
background-color: #2C3E50;_x000D_
color: #D35400;_x000D_
font-family: sans-serif;_x000D_
font-weight: 500;_x000D_
font-size: 4em; /* Set this to whatever size you want */_x000D_
}_x000D_
_x000D_
span.bigcheck {_x000D_
display: block;_x000D_
padding: 0.5em;_x000D_
}
_x000D_
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" />_x000D_
_x000D_
<span class="bigcheck">_x000D_
<label class="bigcheck">_x000D_
Cheese_x000D_
<input type="checkbox" class="bigcheck" name="cheese" value="yes" />_x000D_
<span class="bigcheck-target"></span>_x000D_
</label>_x000D_
</span>
_x000D_
Here's the JSFiddle for it.
Default behaviour of PowerShell is just to dump everything that falls out of a pipeline without being picked up by another pipeline element or being assigned to a variable (or redirected) into Out-Host
. What Out-Host
does is obviously host-dependent.
Just letting things fall out of the pipeline is not a substitute for Write-Host
which exists for the sole reason of outputting text in the host application.
If you want output, then use the Write-*
cmdlets. If you want return values from a function, then just dump the objects there without any cmdlet.
I'm not sure I really understood what you want to do, but the suggested way to communicate between fragments is to use callbacks with the Activity, never directly between fragments. See here http://developer.android.com/training/basics/fragments/communicating.html
I had this issue when I was trying to make my Docker container smaller. It was because I'd installed Python 2.7 with:
apt-get install -y --no-install-recommends python
And I should not have included the --no-install-recommends
flag:
apt-get install -y python
Use versions:set
from the versions-maven plugin:
mvn versions:set -DnewVersion=2.50.1-SNAPSHOT
It will adjust all pom versions, parent versions and dependency versions in a multi-module project.
If you made a mistake, do
mvn versions:revert
afterwards, or
mvn versions:commit
if you're happy with the results.
Note: this solution assumes that all modules use the aggregate pom as parent pom also, a scenario that was considered standard at the time of this answer. If that is not the case, go for Garret Wilson's answer.
One option if the number of keys is small is to use chained gets:
value = myDict.get('lastName', myDict.get('firstName', myDict.get('userName')))
But if you have keySet defined, this might be clearer:
value = None
for key in keySet:
if key in myDict:
value = myDict[key]
break
The chained get
s do not short-circuit, so all keys will be checked but only one used. If you have enough possible keys that that matters, use the for
loop.
In case you want to cast to a class and not just a string:
YourClass model = await request.Content.ReadAsAsync<YourClass>();
Fully working code sample how to share file from inner app folder. Tested on Android 7 and Android 5.
AndroidManifest.xml
</application>
....
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="android.getqardio.com.gmslocationtest"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths"/>
</provider>
</application>
xml/provider_paths
<?xml version="1.0" encoding="utf-8"?>
<paths>
<files-path
name="share"
path="external_files"/>
</paths>
Code itself
File imagePath = new File(getFilesDir(), "external_files");
imagePath.mkdir();
File imageFile = new File(imagePath.getPath(), "test.jpg");
// Write data in your file
Uri uri = FileProvider.getUriForFile(this, getPackageName(), imageFile);
Intent intent = ShareCompat.IntentBuilder.from(this)
.setStream(uri) // uri from FileProvider
.setType("text/html")
.getIntent()
.setAction(Intent.ACTION_VIEW) //Change if needed
.setDataAndType(uri, "image/*")
.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
startActivity(intent);
just use native javascript reload method:
reloadPage() {
window.location.reload();
}
Use swfobject. it replaces a div with the flash if it is installed. see: http://code.google.com/p/swfobject/
This line will unconditionally restart the running program from scratch:
os.execl(sys.executable, sys.executable, *sys.argv)
One of its advantage compared to the remaining suggestions so far is that the program itself will be read again.
This can be useful if, for example, you are modifying its code in another window.
Yes, nowadays you can develop apps for iOS in Python.
There are two frameworks that you may want to checkout: Kivy and PyMob.
Please consider the answers to this question too, as they are more up-to-date than this one.
$foo = Bar::getBeers(); $foo = $foo->toArray();
Aren't TPM chips (Trusted Platform Module) supposed to manage protected code for you ? They are becoming common on PCs (especially Apple ones) and they may already exist in today's smartphone chips. Unfortunately there is no OS API to make use of it yet. Hopefully Android will add support for this one day. That's also the key to clean content DRM (which Google is working on for WebM).
if
takes a command and checks its return value. [
is just a command.
if grep -q ...
then
....
else
....
fi
I just figured out a different solution.
My issue: I have an <a>
tag around some slides/main content viewer as well as <a>
tags in the footer. I want them to go to the same place in IE, so the whole paragraph would be underlined onHover
, even though they're not links: the slide as a whole is a link. IE doesn't know the difference. I also have some actual links in my footer that do need the underline and color change onHover
. I thought I would have to put styles inline with the footer tags to make the color change, but advice from above suggests that this is impossible.
Solution: I gave the footer links two different classes, and my problem was solved. I was able to have the onHover
color change in one class, have the slides onHover
have no color change/underline, and still able to have the external HREFS in the footer and the slides at the same time!
Use std::string
instead of char-arrays
std::string k ="abcde";
std::vector<std::string> v;
v.push_back(k);
Do I need to double the size of the .box div to 400px by 400px to match the new high res background image
No, but you do need to set the background-size
property to match the original dimensions:
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
.box{
background:url('images/[email protected]') no-repeat top left;
background-size: 200px 200px;
}
}
EDIT
To add a little more to this answer, here is the retina detection query I tend to use:
@media
only screen and (-webkit-min-device-pixel-ratio: 2),
only screen and ( min--moz-device-pixel-ratio: 2),
only screen and ( -o-min-device-pixel-ratio: 2/1),
only screen and ( min-device-pixel-ratio: 2),
only screen and ( min-resolution: 192dpi),
only screen and ( min-resolution: 2dppx) {
}
NB. This min--moz-device-pixel-ratio:
is not a typo. It is a well documented bug in certain versions of Firefox and should be written like this in order to support older versions (prior to Firefox 16).
- Source
As @LiamNewmarch mentioned in the comments below, you can include the background-size
in your shorthand background
declaration like so:
.box{
background:url('images/[email protected]') no-repeat top left / 200px 200px;
}
However, I personally would not advise using the shorthand form as it is not supported in iOS <= 6 or Android making it unreliable in most situations.
You can install boost on ubuntu by using the following commands:
sudo apt update
sudo apt install libboost-all-dev
Simple:
byte[] data = Convert.FromBase64String(encodedString);
string decodedString = Encoding.UTF8.GetString(data);
Install yarn an then run
yarn global add install-peerdeps
Just in case someone encounters this on a QNAP system or any other system with OPKG as package manager:
You need to install git-http along with git. Like:
opkg install git-http
Change your method to look like this:
String curloc = current.toString();
String itemdesc = item.mDescription;
ArrayList<String> passing = new ArrayList<String>();
passing.add(itemdesc);
passing.add(curloc);
new calc_stanica().execute(passing); //no need to pass in result list
And change your async task implementation
public class calc_stanica extends AsyncTask<ArrayList<String>, Void, ArrayList<String>> {
ProgressDialog dialog;
@Override
protected void onPreExecute() {
dialog = new ProgressDialog(baraj_mapa.this);
dialog.setTitle("Calculating...");
dialog.setMessage("Please wait...");
dialog.setIndeterminate(true);
dialog.show();
}
protected ArrayList<String> doInBackground(ArrayList<String>... passing) {
ArrayList<String> result = new ArrayList<String>();
ArrayList<String> passed = passing[0]; //get passed arraylist
//Some calculations...
return result; //return result
}
protected void onPostExecute(ArrayList<String> result) {
dialog.dismiss();
String minim = result.get(0);
int min = Integer.parseInt(minim);
String glons = result.get(1);
String glats = result.get(2);
double glon = Double.parseDouble(glons);
double glat = Double.parseDouble(glats);
GeoPoint g = new GeoPoint(glon, glat);
String korisni_linii = result.get(3);
}
UPD:
If you want to have access to the task starting context, the easiest way would be to override onPostExecute in place:
new calc_stanica() {
protected void onPostExecute(ArrayList<String> result) {
// here you have access to the context in which execute was called in first place.
// You'll have to mark all the local variables final though..
}
}.execute(passing);
We show up two functions that prints a SINGLE character to binary.
void printbinchar(char character)
{
char output[9];
itoa(character, output, 2);
printf("%s\n", output);
}
printbinchar(10) will write into the console
1010
itoa is a library function that converts a single integer value to a string with the specified base. For example... itoa(1341, output, 10) will write in output string "1341". And of course itoa(9, output, 2) will write in the output string "1001".
The next function will print into the standard output the full binary representation of a character, that is, it will print all 8 bits, also if the higher bits are zero.
void printbincharpad(char c)
{
for (int i = 7; i >= 0; --i)
{
putchar( (c & (1 << i)) ? '1' : '0' );
}
putchar('\n');
}
printbincharpad(10) will write into the console
00001010
Now i present a function that prints out an entire string (without last null character).
void printstringasbinary(char* s)
{
// A small 9 characters buffer we use to perform the conversion
char output[9];
// Until the first character pointed by s is not a null character
// that indicates end of string...
while (*s)
{
// Convert the first character of the string to binary using itoa.
// Characters in c are just 8 bit integers, at least, in noawdays computers.
itoa(*s, output, 2);
// print out our string and let's write a new line.
puts(output);
// we advance our string by one character,
// If our original string was "ABC" now we are pointing at "BC".
++s;
}
}
Consider however that itoa don't adds padding zeroes, so printstringasbinary("AB1") will print something like:
1000001
1000010
110001
In the <system.web>
element, add the following element:
<httpCookies requireSSL="true" />
However, if you have a <forms>
element in your system.web\authentication
block, then this will override the setting in httpCookies
, setting it back to the default false
.
In that case, you need to add the requireSSL="true"
attribute to the forms element as well.
So you will end up with:
<system.web>
<authentication mode="Forms">
<forms requireSSL="true">
<!-- forms content -->
</forms>
</authentication>
</system.web>
Maybe you're not doing it as root?
Try sudo nginx -s reload
, if it still doesn't work, you might want to try sudo pkill -HUP nginx
.
There second method will be many times more effective (mostly because of compilers inlining and boxing but still numbers are very expressive):
public static bool CheckObjectImpl(object o)
{
return o != null;
}
public static bool CheckNullableImpl<T>(T? o) where T: struct
{
return o.HasValue;
}
Benchmark test:
BenchmarkDotNet=v0.10.5, OS=Windows 10.0.14393
Processor=Intel Core i5-2500K CPU 3.30GHz (Sandy Bridge), ProcessorCount=4
Frequency=3233539 Hz, Resolution=309.2587 ns, Timer=TSC
[Host] : Clr 4.0.30319.42000, 64bit RyuJIT-v4.6.1648.0
Clr : Clr 4.0.30319.42000, 64bit RyuJIT-v4.6.1648.0
Core : .NET Core 4.6.25009.03, 64bit RyuJIT
Method | Job | Runtime | Mean | Error | StdDev | Min | Max | Median | Rank | Gen 0 | Allocated |
-------------- |----- |-------- |-----------:|----------:|----------:|-----------:|-----------:|-----------:|-----:|-------:|----------:|
CheckObject | Clr | Clr | 80.6416 ns | 1.1983 ns | 1.0622 ns | 79.5528 ns | 83.0417 ns | 80.1797 ns | 3 | 0.0060 | 24 B |
CheckNullable | Clr | Clr | 0.0029 ns | 0.0088 ns | 0.0082 ns | 0.0000 ns | 0.0315 ns | 0.0000 ns | 1 | - | 0 B |
CheckObject | Core | Core | 77.2614 ns | 0.5703 ns | 0.4763 ns | 76.4205 ns | 77.9400 ns | 77.3586 ns | 2 | 0.0060 | 24 B |
CheckNullable | Core | Core | 0.0007 ns | 0.0021 ns | 0.0016 ns | 0.0000 ns | 0.0054 ns | 0.0000 ns | 1 | - | 0 B |
Benchmark code:
public class BenchmarkNullableCheck
{
static int? x = (new Random()).Next();
public static bool CheckObjectImpl(object o)
{
return o != null;
}
public static bool CheckNullableImpl<T>(T? o) where T: struct
{
return o.HasValue;
}
[Benchmark]
public bool CheckObject()
{
return CheckObjectImpl(x);
}
[Benchmark]
public bool CheckNullable()
{
return CheckNullableImpl(x);
}
}
https://github.com/dotnet/BenchmarkDotNet was used
So if you have an option (e.g. writing custom serializers) to process Nullable in different pipeline than object
- and use their specific properties - do it and use Nullable specific properties.
So from consistent thinking point of view HasValue
should be preferred. Consistent thinking can help you to write better code do not spending too much time in details.
PS. People say that advice "prefer HasValue because of consistent thinking" is not related and useless. Can you predict the performance of this?
public static bool CheckNullableGenericImpl<T>(T? t) where T: struct
{
return t != null; // or t.HasValue?
}
PPS People continue minus, seems nobody tries to predict performance of CheckNullableGenericImpl
. I will tell you: there compiler will not help you replacing !=null
with HasValue
. HasValue
should be used directly if you are interested in performance.