if mysql is okay for you:
SELECT flights.*,
fromairports.city as fromCity,
toairports.city as toCity
FROM flights
LEFT JOIN (airports as fromairports, airports as toairports)
ON (fromairports.code=flights.fairport AND toairports.code=flights.tairport )
WHERE flights.fairport = '?' OR fromairports.city = '?'
edit: added example to filter the output for code or city
You can do it. this is a easy way.
txtTopicNo.setText(10+"");
You can use .present? which comes included with ActiveSupport.
@city = @user.city.present?
# etc ...
You could even write it like this
def show
%w(city state bio contact twitter mail).each do |attr|
instance_variable_set "@#{attr}", @user[attr].present?
end
end
It's worth noting that if you want to test if something is blank, you can use .blank?
(this is the opposite of .present?
)
Also, don't use foo == nil
. Use foo.nil?
instead.
It's a hex number and is 16 decimal.
Its a CORS issue, your api cannot be accessed directly from remote or different origin, In order to allow other ip address or other origins from accessing you api, you should add the 'Access-Control-Allow-Origin' on the api's header, you can set its value to '*' if you want it to be accessible to all, or you can set specific domain or ips like 'http://siteA.com' or 'http://192. ip address ';
Include this on your api's header, it may vary depending on how you are displaying json data,
if your using ajax, to retrieve and display data your header would look like this,
$.ajax({
url: '',
headers: { 'Access-Control-Allow-Origin': 'http://The web site allowed to access' },
data: data,
type: 'dataType',
/* etc */
success: function(jsondata){
}
})
For combining HTML and PHP you can use .phtml files.
There is nothing special about a CSV file. You can create them using a text editor by simply following the basic rules. The RFC 4180 (tools.ietf.org/html/rfc4180) accepted separator is the comma ',' not the semi-colon ';'. Programs like MS Excel expect a comma as a separator.
There are some programs that treat the comma as a decimal and the semi-colon as a separator, but these are technically outside of the "accepted" standard for CSV formatted files.
So, when creating a CSV you create your filestream and add your lines like so:
#include <iostream>
#include <fstream>
int main( int argc, char* argv[] )
{
std::ofstream myfile;
myfile.open ("example.csv");
myfile << "This is the first cell in the first column.\n";
myfile << "a,b,c,\n";
myfile << "c,s,v,\n";
myfile << "1,2,3.456\n";
myfile << "semi;colon";
myfile.close();
return 0;
}
This will result in a CSV file that looks like this when opened in MS Excel:
Some versions of Android support custom Activity
transitions and some don't (older devices). If you want to use custom transitions it's good practice to check whether the Activity
has the overridePendingTransition()
method, as on older versions it does not.
To know whether the method exists or not, reflection API can be used. Here is the simple code which will check and return the method if it exists:
Method mOverridePendingTransition;
try {
mOverridePendingTransition = Activity.class.getMethod(
"overridePendingTransition", new Class[] { Integer.TYPE, Integer.TYPE } );
/* success */
} catch (NoSuchMethodException nsme) {
/* failure, this version of Android doesn't have this method */
}
And then, we can apply our own transition, i.e. use this method if it exists:
if (UIConstants.mOverridePendingTransition != null) {
try {
UIConstants.mOverridePendingTransition.invoke(MainActivity.this, R.anim.activity_fade_in, R.anim.activity_fade_out);
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
Here, as an example, simple fade-in and fade-out animations were used for transition demonstration..
I routinely use several Anaconda-installed virtual environments (venv). This code snippet/examples enables you to determine whether or not you are in a venv (or your system environment), and to also require a specific venv for your script.
Add to Python script (code snippet):
# ----------------------------------------------------------------------------
# Want script to run in Python 3.5 (has required installed OpenCV, imutils, ... packages):
import os
# First, see if we are in a conda venv { py27: Python 2.7 | py35: Python 3.5 | tf: TensorFlow | thee : Theano }
try:
os.environ["CONDA_DEFAULT_ENV"]
except KeyError:
print("\tPlease set the py35 { p3 | Python 3.5 } environment!\n")
exit()
# If we are in a conda venv, require the p3 venv:
if os.environ['CONDA_DEFAULT_ENV'] != "py35":
print("\tPlease set the py35 { p3 | Python 3.5 } environment!\n")
exit()
# See also:
# Python: Determine if running inside virtualenv
# http://stackoverflow.com/questions/1871549/python-determine-if-running-inside-virtualenv
# [ ... SNIP! ... ]
Example:
$ p2
[Anaconda Python 2.7 venv (source activate py27)]
(py27) $ python webcam_.py
Please set the py35 { p3 | Python 3.5 } environment!
(py27) $ p3
[Anaconda Python 3.5 venv (source activate py35)]
(py35) $ python webcam.py -n50
current env: py35
processing (live): found 2 faces and 4 eyes in this frame
threaded OpenCV implementation
num_frames: 50
webcam -- approx. FPS: 18.59
Found 2 faces and 4 eyes!
(py35) $
Update 1 -- use in bash scripts:
You can also use this approach in bash scripts (e.g., those that must run in a specific virtual environment). Example (added to bash script):
if [ $CONDA_DEFAULT_ENV ] ## << note the spaces (important in BASH)!
then
printf 'venv: operating in tf-env, proceed ...'
else
printf 'Note: must run this script in tf-env venv'
exit
fi
Update 2 [Nov 2019]
Since my original post I've moved on from Anaconda venv (and Python itself has evolved viz-a-viz virtual environments).
Reexamining this issue, here is some updated Python code that you can insert to test that you are operating in a specific Python virtual environment (venv).
import os, re
try:
if re.search('py37', os.environ['VIRTUAL_ENV']):
pass
except KeyError:
print("\n\tPlease set the Python3 venv [alias: p3]!\n")
exit()
Here is some explanatory code.
[victoria@victoria ~]$ date; python --version
Thu 14 Nov 2019 11:27:02 AM PST
Python 3.8.0
[victoria@victoria ~]$ python
Python 3.8.0 (default, Oct 23 2019, 18:51:26)
[GCC 9.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import os, re
>>> re.search('py37', os.environ['VIRTUAL_ENV'])
<re.Match object; span=(20, 24), match='py37'>
>>> try:
... if re.search('py37', os.environ['VIRTUAL_ENV']):
... print('\n\tOperating in Python3 venv, please proceed! :-)')
... except KeyError:
... print("\n\tPlease set the Python3 venv [alias: p3]!\n")
...
Please set the Python3 venv [alias: p3]!
>>> [Ctrl-d]
now exiting EditableBufferInteractiveConsole...
[victoria@victoria ~]$ p3
[Python 3.7 venv (source activate py37)]
(py37) [victoria@victoria ~]$ python --version
Python 3.8.0
(py37) [victoria@victoria ~]$ env | grep -i virtual
VIRTUAL_ENV=/home/victoria/venv/py37
(py37) [victoria@victoria ~]$ python
Python 3.8.0 (default, Oct 23 2019, 18:51:26)
[GCC 9.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import os, re
>>> try:
... if re.search('py37', os.environ['VIRTUAL_ENV']):
... print('\n\tOperating in Python3 venv, please proceed! :-)')
... except KeyError:
... print("\n\tPlease set the Python3 venv [alias: p3]!\n")
...
Operating in Python3 venv, please proceed! :-)
>>>
In a nutshell:
Mono = Compiler for C#
Mono Develop = Compiler+IDE
.Net Core = ASP Compiler
Current case for .Net Core is web only as soon as it adopts some open winform standard and wider language adoption, it could finally be the Microsoft killer dev powerhouse. Considering Oracle's recent Java licensing move, Microsoft have a huge time to shine.
HTML file:
<head>
<meta charset="utf-8">
</head>
PHP file :
<?php header('Content-type: text/plain; charset=utf-8'); ?>
I am sure m2eclipse Maven plugin for Eclipse - the other way around - can do that. You can configure it to download both the source files and javadoc automatically for you.
This is achieved by going into Window > Preferences > Maven and checking the "Download Artifact Sources" and "Download Artifact JavaDoc" options.
Using what others mentioned, I wanted this to be a quick & dandy function in my bash shell.
Create a file: ~/.functions
Add to it the contents:
getline() {
line=$1
sed $line'q;d' $2
}
Then add this to your ~/.bash_profile
:
source ~/.functions
Now when you open a new bash window, you can just call the function as so:
getline 441 myfile.txt
Add an entry in /etc/profile
that executes the script. This will be run during every log-on. If you are only doing this for your own account, use one of your login scripts (e.g. .bash_profile
) to run it.
Here is my Timer widget, not related to the Question but may help someone.
import 'dart:async';
import 'package:flutter/material.dart';
class OtpTimer extends StatefulWidget {
@override
_OtpTimerState createState() => _OtpTimerState();
}
class _OtpTimerState extends State<OtpTimer> {
final interval = const Duration(seconds: 1);
final int timerMaxSeconds = 60;
int currentSeconds = 0;
String get timerText =>
'${((timerMaxSeconds - currentSeconds) ~/ 60).toString().padLeft(2, '0')}: ${((timerMaxSeconds - currentSeconds) % 60).toString().padLeft(2, '0')}';
startTimeout([int milliseconds]) {
var duration = interval;
Timer.periodic(duration, (timer) {
setState(() {
print(timer.tick);
currentSeconds = timer.tick;
if (timer.tick >= timerMaxSeconds) timer.cancel();
});
});
}
@override
void initState() {
startTimeout();
super.initState();
}
@override
Widget build(BuildContext context) {
return Row(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Icon(Icons.timer),
SizedBox(
width: 5,
),
Text(timerText)
],
);
}
}
You will get something like this
Use fnmatch
:
import fnmatch
lst = ['this','is','just','a','test']
filtered = fnmatch.filter(lst, 'th?s')
If you want to allow _
as a wildcard, just replace all underscores with '?'
(for one character) or *
(for multiple characters).
If you want your users to use even more powerful filtering options, consider allowing them to use regular expressions.
In 2020 for TextField, via functional components:
const Content = () => {
...
const textFieldRef = useRef();
const readTextFieldValue = () => {
console.log(textFieldRef.current.value)
}
...
return(
...
<TextField
id="myTextField"
label="Text Field"
variant="outlined"
inputRef={textFieldRef}
/>
...
)
}
Note that this isn't complete code.
There are two ways. The first is a variant of another answer here, but this one accounts for non-default ports:
function getRootUrl() {
var defaultPorts = {"http:":80,"https:":443};
return window.location.protocol + "//" + window.location.hostname
+ (((window.location.port)
&& (window.location.port != defaultPorts[window.location.protocol]))
? (":"+window.location.port) : "");
}
But I prefer this simpler method (which works with any URI string):
function getRootUrl(url) {
return url.toString().replace(/^(.*\/\/[^\/?#]*).*$/,"$1");
}
That's funny you asked this, I just did this recently for my work's site and I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_contents($usmap);
/*loop to color each state as needed, something like*/
$idColorArray = array(
"AL" => "339966"
,"AK" => "0099FF"
...
,"WI" => "FF4B00"
,"WY" => "A3609B"
);
foreach($idColorArray as $state => $color){
//Where $color is a RRGGBB hex value
$svg = preg_replace(
'/id="'.$state.'" style="fill:#([0-9a-f]{6})/'
, 'id="'.$state.'" style="fill:#'.$color
, $svg
);
}
$im->readImageBlob($svg);
/*png settings*/
$im->setImageFormat("png24");
$im->resizeImage(720, 445, imagick::FILTER_LANCZOS, 1); /*Optional, if you need to resize*/
/*jpeg*/
$im->setImageFormat("jpeg");
$im->adaptiveResizeImage(720, 445); /*Optional, if you need to resize*/
$im->writeImage('/path/to/colored/us-map.png');/*(or .jpg)*/
$im->clear();
$im->destroy();
the steps regex color replacement may vary depending on the svg path xml and how you id & color values are stored. If you don't want to store a file on the server, you can output the image as base 64 like
<?php echo '<img src="data:image/jpg;base64,' . base64_encode($im) . '" />';?>
(before you use clear/destroy) but ie has issues with PNG as base64 so you'd probably have to output base64 as jpeg
you can see an example here I did for a former employer's sales territory map:
Start: https://upload.wikimedia.org/wikipedia/commons/1/1a/Blank_US_Map_(states_only).svg
Finish:
Edit
Since writing the above, I've come up with 2 improved techniques:
1) instead of a regex loop to change the fill on state , use CSS to make style rules like
<style type="text/css">
#CA,#FL,HI{
fill:blue;
}
#Al, #NY, #NM{
fill:#cc6699;
}
/*etc..*/
</style>
and then you can do a single text replace to inject your css rules into the svg before proceeding with the imagick jpeg/png creation. If the colors don't change, check to make sure you don't have any inline fill styles in your path tags overriding the css.
2) If you don't have to actually create a jpeg/png image file (and don't need to support outdated browsers), you can manipulate the svg directly with jQuery. You can't access the svg paths when embedding the svg using img or object tags, so you'll have to directly include the svg xml in your webpage html like:
<div>
<?php echo file_get_contents('/path/to/blank/us-map.svg');?>
</div>
then changing the colors is as easy as:
<script type="text/javascript" src="/path/to/jquery.js"></script>
<script type="text/javascript">
$('#CA').css('fill', 'blue');
$('#NY').css('fill', '#ff0000');
</script>
While some of these solutions may work, none of them follow best practices. Many assign global variables and you may find yourself making calls to multiple parent variables or functions, leading to a cluttered, vulnerable namespace.
To avoid this, use a module pattern. In the parent window:
var myThing = {
var i = 0;
myFunction : function () {
// do something
}
};
var newThing = Object.create(myThing);
Then, in the iframe:
function myIframeFunction () {
parent.myThing.myFunction();
alert(parent.myThing.i);
};
This is similar to patterns described in the Inheritance chapter of Crockford's seminal text, "Javascript: The Good Parts." You can also learn more at w3's page for Javascript's best practices. https://www.w3.org/wiki/JavaScript_best_practices#Avoid_globals
int x = -1;
Calendar cal = ...;
cal.add(Calendar.DATE, x);
I just use:
$('body').animate({ 'scrollTop': '-=-'+<yourValueScroll>+'px' }, 2000);
_x000D_
To achieve this with RxJava 2.x you can use:
Completable.fromAction(this::dowork).subscribeOn(Schedulers.io().subscribe();
The subscribeOn()
method specifies which scheduler to run the action on - RxJava has several predefined schedulers, including Schedulers.io()
which has a thread pool intended for I/O operations, and Schedulers.computation()
which is intended for CPU intensive operations.
declare @cur cursor
declare @idx int
declare @Approval_No varchar(50)
declare @ReqNo varchar(100)
declare @M_Id varchar(100)
declare @Mail_ID varchar(100)
declare @temp table
(
val varchar(100)
)
declare @temp2 table
(
appno varchar(100),
mailid varchar(100),
userod varchar(100)
)
declare @slice varchar(8000)
declare @String varchar(100)
--set @String = '1200096,1200095,1200094,1200093,1200092,1200092'
set @String = '20131'
select @idx = 1
if len(@String)<1 or @String is null return
while @idx!= 0
begin
set @idx = charindex(',',@String)
if @idx!=0
set @slice = left(@String,@idx - 1)
else
set @slice = @String
--select @slice
insert into @temp values(@slice)
set @String = right(@String,len(@String) - @idx)
if len(@String) = 0 break
end
-- select distinct(val) from @temp
SET @cur = CURSOR FOR select distinct(val) from @temp
--open cursor
OPEN @cur
--fetchng id into variable
FETCH NEXT
FROM @cur into @Approval_No
--
--loop still the end
while @@FETCH_STATUS = 0
BEGIN
select distinct(Approval_Sr_No) as asd, @ReqNo=Approval_Sr_No,@M_Id=AM_ID,@Mail_ID=Mail_ID from WFMS_PRAO,WFMS_USERMASTER where WFMS_PRAO.AM_ID=WFMS_USERMASTER.User_ID
and Approval_Sr_No=@Approval_No
insert into @temp2 values(@ReqNo,@M_Id,@Mail_ID)
FETCH NEXT
FROM @cur into @Approval_No
end
--close cursor
CLOSE @cur
select * from @tem
Maybe you should try it with -quality 100 -size "1024x1024", because resize often gives results that are ugly to view.
Pseudo-random number generators work by performing some operation on a value. Generally this value is the previous number generated by the generator. However, the first time you use the generator, there is no previous value.
Seeding a pseudo-random number generator gives it its first "previous" value. Each seed value will correspond to a sequence of generated values for a given random number generator. That is, if you provide the same seed twice, you get the same sequence of numbers twice.
Generally, you want to seed your random number generator with some value that will change each execution of the program. For instance, the current time is a frequently-used seed. The reason why this doesn't happen automatically is so that if you want, you can provide a specific seed to get a known sequence of numbers.
I wasn't actually able to get this to work with any of the above solutions. Once I bound the event with jQuery then it worked fine as below:
$(window).bind('resize', function () {
resizeElements();
}).trigger('resize');
Might this be the download you are looking for?
The libraries mentioned in other answers would be fine solutions, but if you already happen to be digging through real-world html in your project, the Jsoup
project has a lot more to offer than just managing "ampersand pound FFFF semicolon" things.
// textValue: <p>This is a sample. \"Granny\" Smith –.<\/p>\r\n
// becomes this: This is a sample. "Granny" Smith –.
// with one line of code:
// Jsoup.parse(textValue).getText(); // for older versions of Jsoup
Jsoup.parse(textValue).text();
// Another possibility may be the static unescapeEntities method:
boolean strictMode = true;
String unescapedString = org.jsoup.parser.Parser.unescapeEntities(textValue, strictMode);
And you also get the convenient API for extracting and manipulating data, using the best of DOM, CSS, and jquery-like methods. It's open source and MIT licence.
In Jupyter Notebook,
SHIFT+ TAB(to move left) and TAB(to move right) movement is perfectly working.
The only way to do explicit scaling in CSS is to use tricks such as found here.
IE6 only, you could also use filters (check out PNGFix). But applying them automatically to the page will need javascript, though that javascript could be embedded in the CSS file.
If you are going to require javascript, then you might want to just have javascript fill in the missing value for the height by inspecting the image once the content has loaded. (Sorry I do not have a reference for this technique).
Finally, and pardon me for this soapbox, you might want to eschew IE6 support in this matter. You could add _width: auto
after your width: 75px
rule, so that IE6 at least renders the image reasonably, even if it is the wrong size.
I recommend the last solution simply because IE6 is on the way out: 20% and going down almost a percent a month. Also, I note that your site is recreational and in the UK. Both of these help the demographic lean to be away from IE6: IE6 usage drops nearly 40% during weekends (no citation sorry), and UK has a much lower IE6 demographic (again no citation, sorry).
Good luck!
$about->first()->id
or
$stm->first()->title
and your problem is sorted out.
I agree with previous comment that might be best to consider a different approach. My suggest would be write a console application and use the windows scheduler:
This will:
For one time action, you can use .dump and .read.
Dump the table my_table from old_db.sqlite
c:\sqlite>sqlite3.exe old_db.sqlite
sqlite> .output mytable_dump.sql
sqlite> .dump my_table
sqlite> .quit
Read the dump into the new_db.sqlite assuming the table there does not exist
c:\sqlite>sqlite3.exe new_db.sqlite
sqlite> .read mytable_dump.sql
Now you have cloned your table. To do this for whole database, simply leave out the table name in the .dump command.
Bonus: The databases can have different encodings.
Another possibility is
var res = /!id-[^!]*/.exec("!"+windowArray.join("!"));
return res && res[0].substr(1);
that IMO may make sense if you can have a special char delimiter (here i used "!"), the array is constant or mostly constant (so the join can be computed once or rarely) and the full string isn't much longer than the prefix searched for.
My sphinx.conf
source post_source
{
type = mysql
sql_host = localhost
sql_user = ***
sql_pass = ***
sql_db = ***
sql_port = 3306
sql_query_pre = SET NAMES utf8
# query before fetching rows to index
sql_query = SELECT *, id AS pid, CRC32(safetag) as safetag_crc32 FROM hb_posts
sql_attr_uint = pid
# pid (as 'sql_attr_uint') is necessary for sphinx
# this field must be unique
# that is why I like sphinx
# you can store custom string fields into indexes (memory) as well
sql_field_string = title
sql_field_string = slug
sql_field_string = content
sql_field_string = tags
sql_attr_uint = category
# integer fields must be defined as sql_attr_uint
sql_attr_timestamp = date
# timestamp fields must be defined as sql_attr_timestamp
sql_query_info_pre = SET NAMES utf8
# if you need unicode support for sql_field_string, you need to patch the source
# this param. is not supported natively
sql_query_info = SELECT * FROM my_posts WHERE id = $id
}
index posts
{
source = post_source
# source above
path = /var/data/posts
# index location
charset_type = utf-8
}
Test script:
<?php
require "sphinxapi.php";
$safetag = $_GET["my_post_slug"];
// $safetag = preg_replace("/[^a-z0-9\-_]/i", "", $safetag);
$conf = getMyConf();
$cl = New SphinxClient();
$cl->SetServer($conf["server"], $conf["port"]);
$cl->SetConnectTimeout($conf["timeout"]);
$cl->setMaxQueryTime($conf["max"]);
# set search params
$cl->SetMatchMode(SPH_MATCH_FULLSCAN);
$cl->SetArrayResult(TRUE);
$cl->setLimits(0, 1, 1);
# looking for the post (not searching a keyword)
$cl->SetFilter("safetag_crc32", array(crc32($safetag)));
# fetch results
$post = $cl->Query(null, "post_1");
echo "<pre>";
var_dump($post);
echo "</pre>";
exit("done");
?>
Sample result:
[array] =>
"id" => 123,
"title" => "My post title.",
"content" => "My <p>post</p> content.",
...
[ and other fields ]
Sphinx query time:
0.001 sec.
Sphinx query time (1k concurrent):
=> 0.346 sec. (average)
=> 0.340 sec. (average of last 10 query)
MySQL query time:
"SELECT * FROM hb_posts WHERE id = 123;"
=> 0.001 sec.
MySQL query time (1k concurrent):
"SELECT * FROM my_posts WHERE id = 123;"
=> 1.612 sec. (average)
=> 1.920 sec. (average of last 10 query)
I got it to work in phpAdmin , but only when I removed the "Number of records " phrase.
In my version of phpAdmin I could see the box for changing the delimiters.
Also to see the procedure in the database i went to the phpAdmin home, then information_schema database and then the routines table.
Just try this func (it may work not only for divs):
function resized(elem, func = function(){}, args = []){
elem = jQuery(elem);
func = func.bind(elem);
var h = -1, w = -1;
setInterval(function(){
if (elem.height() != h || elem.width() != w){
h = elem.height();
w = elem.width();
func.apply(null, args);
}
}, 100);
}
You can use it like this
resized(/*element*/ '.advs-columns-main > div > div', /*callback*/ function(a){
console.log(a);
console.log(this); //for accessing the jQuery element you passed
}, /*callback arguments in array*/ ['I\'m the first arg named "a"!']);
UPDATE: You can also use more progressive watcher (it can work for any objects, not only DOM elements):
function changed(elem, propsToBeChanged, func = function(){}, args = [], interval = 100){
func = func.bind(elem);
var currentVal = {call: {}, std: {}};
$.each(propsToBeChanged, (property, needCall)=>{
needCall = needCall ? 'call' : 'std';
currentVal[needCall][property] = new Boolean(); // is a minimal and unique value, its equivalent comparsion with each other will always return false
});
setInterval(function(){
$.each(propsToBeChanged, (property, needCall)=>{
try{
var currVal = needCall ? elem[property]() : elem[property];
} catch (e){ // elem[property] is not a function anymore
var currVal = elem[property];
needCall = false;
propsToBeChanged[property] = false;
}
needCall = needCall ? 'call' : 'std';
if (currVal !== currentVal[needCall][property]){
currentVal[needCall][property] = currVal;
func.apply(null, args);
}
});
}, interval);
}
Just try it:
var b = '2',
a = {foo: 'bar', ext: ()=>{return b}};
changed(a, {
// prop name || do eval like a function?
foo: false,
ext: true
}, ()=>{console.log('changed')})
It will log 'changed' every time when you change b, a.foo or a.ext directly
This works for me:
.network-connections-icon {
background-image: url(url);
background-size: 100%;
width: 56px;
height: 56px;
margin: 0 auto;
}
But always look out in the console / log for messages. If you see a notification that your query could not be converted to SQL and will be evaluated locally then you may need to rewrite it.
Entity Framework 7 (now renamed to Entity Framework Core 1.0 / 2.0) does not yet support GroupBy()
for translation to GROUP BY
in generated SQL (even in the final 1.0 release it won't). Any grouping logic will run on the client side, which could cause a lot of data to be loaded.
Eventually code written like this will automagically start using GROUP BY, but for now you need to be very cautious if loading your whole un-grouped dataset into memory will cause performance issues.
For scenarios where this is a deal-breaker you will have to write the SQL by hand and execute it through EF.
If in doubt fire up Sql Profiler and see what is generated - which you should probably be doing anyway.
https://blogs.msdn.microsoft.com/dotnet/2016/05/16/announcing-entity-framework-core-rc2
This is an Oracle-specific notation for an outer join. It means that it will include all rows from t1, and use NULLS in the t0 columns if there is no corresponding row in t0.
In standard SQL one would write:
SELECT t0.foo, t1.bar
FROM FIRST_TABLE t0
RIGHT OUTER JOIN SECOND_TABLE t1;
Oracle recommends not to use those joins anymore if your version supports ANSI joins (LEFT/RIGHT JOIN) :
Oracle recommends that you use the FROM clause OUTER JOIN syntax rather than the Oracle join operator. Outer join queries that use the Oracle join operator (+) are subject to the following rules and restrictions […]
You can use the setText()
method. Example:
import android.widget.Button;
Button p1_button = (Button)findViewById(R.id.Player1);
p1_button.setText("Some text");
Also, just as a point of reference, Button extends TextView, hence why you can use setText()
just like with an ordinary TextView.
In java 7 can now do
try(BufferedWriter w = ....)
{
w.write(...);
}
catch(IOException)
{
}
and w.close will be done automatically
I'm assuming you figured this out already but:
Technical Reference for Log Files in Configuration Manager
That's a list of client-side logs and what they do. They are located in Windows\CCM\Logs
AppEnforce.log
will show you the actual command-line executed and the resulting exit code for each Deployment Type (only for the new style ConfigMgr Applications)
This is my go-to for troubleshooting apps. Haven't really found any other logs that are exceedingly useful.
This is an old post but I was looking for an answer and I found this: https://gifs.com. Just upload the video, then it creates a gif we can add easily in a github markdown. I tried it, the quality of the gif is a good one.
Not really, no.
Java doesn't have pointers. If you really wanted you could try to emulate them by building around something like reflection, but it would have all of the complexity of pointers with none of the benefits.
Java doesn't have pointers because it doesn't need them. What kind of answers were you hoping for from this question, i.e. deep down did you hope you could use them for something or was this just curiousity?
Below code will fix root = tk.Tk()
to its size before it was called:
root.resizable(False, False)
The only thing about using telnet to test postfix, or other SMTP, is that you have to know the commands and syntax. Instead, just use swaks :)
thufir@dur:~$
thufir@dur:~$ mail -f Maildir
"/home/thufir/Maildir": 4 messages
> 1 [email protected] 15/553 test Mon, 30 Dec 2013 10:15:12 -0800
2 [email protected] 15/581 test Mon, 30 Dec 2013 10:15:55 -0800
3 [email protected] 15/581 test Mon, 30 Dec 2013 10:29:57 -0800
4 [email protected] 15/581 test Mon, 30 Dec 2013 11:54:16 -0800
? q
Held 4 messages in /home/thufir/Maildir
thufir@dur:~$
thufir@dur:~$ swaks --to [email protected]
=== Trying dur.bounceme.net:25...
=== Connected to dur.bounceme.net.
<- 220 dur.bounceme.net ESMTP Postfix (Ubuntu)
-> EHLO dur.bounceme.net
<- 250-dur.bounceme.net
<- 250-PIPELINING
<- 250-SIZE 10240000
<- 250-VRFY
<- 250-ETRN
<- 250-STARTTLS
<- 250-ENHANCEDSTATUSCODES
<- 250-8BITMIME
<- 250 DSN
-> MAIL FROM:<[email protected]>
<- 250 2.1.0 Ok
-> RCPT TO:<[email protected]>
<- 250 2.1.5 Ok
-> DATA
<- 354 End data with <CR><LF>.<CR><LF>
-> Date: Mon, 30 Dec 2013 14:33:17 -0800
-> To: [email protected]
-> From: [email protected]
-> Subject: test Mon, 30 Dec 2013 14:33:17 -0800
-> X-Mailer: swaks v20130209.0 jetmore.org/john/code/swaks/
->
-> This is a test mailing
->
-> .
<- 250 2.0.0 Ok: queued as 52D162C3EFF
-> QUIT
<- 221 2.0.0 Bye
=== Connection closed with remote host.
thufir@dur:~$
thufir@dur:~$ mail -f Maildir
"/home/thufir/Maildir": 5 messages 1 new
1 [email protected] 15/553 test Mon, 30 Dec 2013 10:15:12 -0800
2 [email protected] 15/581 test Mon, 30 Dec 2013 10:15:55 -0800
3 [email protected] 15/581 test Mon, 30 Dec 2013 10:29:57 -0800
4 [email protected] 15/581 test Mon, 30 Dec 2013 11:54:16 -0800
>N 5 [email protected] 15/581 test Mon, 30 Dec 2013 14:33:17 -0800
? 5
Return-Path: <[email protected]>
X-Original-To: [email protected]
Delivered-To: [email protected]
Received: from dur.bounceme.net (localhost [127.0.0.1])
by dur.bounceme.net (Postfix) with ESMTP id 52D162C3EFF
for <[email protected]>; Mon, 30 Dec 2013 14:33:17 -0800 (PST)
Date: Mon, 30 Dec 2013 14:33:17 -0800
To: [email protected]
From: [email protected]
Subject: test Mon, 30 Dec 2013 14:33:17 -0800
X-Mailer: swaks v20130209.0 jetmore.org/john/code/swaks/
Message-Id: <[email protected]>
This is a test mailing
New mail has arrived.
? q
Held 5 messages in /home/thufir/Maildir
thufir@dur:~$
It's just one easy command.
One more answer to improve on: https://stackoverflow.com/a/4203897/2804197 and https://stackoverflow.com/a/25476462/1338797 (Tkinter).
Tkinter is nice, because it's either included with Python (Windows) or easy to install (Linux), and thus requires little dependencies for the end user.
Here I have a "full-blown" example, which copies the arguments or the standard input, to clipboard, and - when not on Windows - waits for the user to close the application:
import sys
try:
from Tkinter import Tk
except ImportError:
# welcome to Python3
from tkinter import Tk
raw_input = input
r = Tk()
r.withdraw()
r.clipboard_clear()
if len(sys.argv) < 2:
data = sys.stdin.read()
else:
data = ' '.join(sys.argv[1:])
r.clipboard_append(data)
if sys.platform != 'win32':
if len(sys.argv) > 1:
raw_input('Data was copied into clipboard. Paste and press ENTER to exit...')
else:
# stdin already read; use GUI to exit
print('Data was copied into clipboard. Paste, then close popup to exit...')
r.deiconify()
r.mainloop()
else:
r.destroy()
This showcases:
raw_input
and print()
compatibilityIn you app config file change the url
to localhost/example/public
Then when you want to link to something
<a href="{{ url('page') }}">Some Text</a>
without blade
<a href="<?php echo url('page') ?>">Some Text</a>
There are a set of available properties to all Maven projects.
From Introduction to the POM:
project.basedir
: The directory that the current project resides in.
This means this points to where your Maven projects resides on your system. It corresponds to the location of the pom.xml
file. If your POM is located inside /path/to/project/pom.xml
then this property will evaluate to /path/to/project
.
Some properties are also inherited from the Super POM, which is the case for project.build.directory
. It is the value inside the <project><build><directory>
element of the POM. You can get a description of all those values by looking at the Maven model. For project.build.directory
, it is:
The directory where all files generated by the build are placed. The default value is
target
.
This is the directory that will hold every generated file by the build.
This worked for me
jQuery(document).ready(function(){
jQuery('input').keyup(function() {
this.value = this.value.toLocaleUpperCase();
});
jQuery('textarea').keyup(function() {
this.value = this.value.toLocaleUpperCase();
});
});
Se these: http://download.oracle.com/javase/tutorial/extra/generics/methods.html
here is the explaniation for the template methods.
The SQLiteDatabase.deleteDatabase(File file) static method was added in API 16. If you want to write apps that support older devices, how do you do this?
I tried: file.delete();
but it messes up SQLiteOpenHelper.
Thanks.
NEVER MIND! I later realized you are using Context.deleteDatabase(). The Context one works great and deletes the journal too. Works for me.
Also, I found I needed to call SQLiteOpenHelp.close() before doing the delete, so that I could then use LoaderManager to recreate it.
let url = ("https://firebasestorage.googleapis.com/v0/b/qualityaudit-678a4.appspot.com/o/profile_images%2FBFA28EDD-9E15-4CC3-9AF8-496B91E74A11.png?alt=media&token=b4518b07-2147-48e5-93fb-3de2b768412d")
self.myactivityindecator.startAnimating()
let urlString = url
guard let url = URL(string: urlString) else { return }
URLSession.shared.dataTask(with: url)
{
(data, response, error) in
if error != nil {
print("Failed fetching image:", error!)
return
}
guard let response = response as? HTTPURLResponse, response.statusCode == 200 else {
print("error")
return
}
DispatchQueue.main.async {
let image = UIImage(data: data!)
let myimageview = UIImageView(image: image)
print(myimageview)
self.imgdata.image = myimageview.image
self.myactivityindecator.stopanimating()
}
}.resume()
The standard Web Storage, does not say anything about the restoring any of these. So there won't be any standard way to do it. You have to go through the way the browsers implement these, or find a way to backup these before you delete them.
tldr: there is simply no way to do that; if you are trying to do that, you get LocalDateTime wrong.
The reason is that LocalDateTime does not record Time Zone after instances are created. You cannot convert a date time without time zone to another date time based on a specific time zone.
As a matter of fact, LocalDateTime.now() should never be called in production code unless your purpose is getting random results. When you construct a LocalDateTime instance like that, this instance contains date time ONLY based on current server's time zone, which means this piece of code will generate different result if it is running a server with a different time zone config.
LocalDateTime can simplify date calculating. If you want a real universally usable data time, use ZonedDateTime or OffsetDateTime: https://docs.oracle.com/javase/8/docs/api/java/time/OffsetDateTime.html.
IF you want to derive usg Boolean true False need to add "[]" around value
<form [formGroup]="form">
<input type="radio" [value]=true formControlName="gender" >Male
<input type="radio" [value]=false formControlName="gender">Female
</form>
The .browser call has been removed in jquery 1.9 have a look at http://jquery.com/upgrade-guide/1.9/ for more details.
try this code
in example code use axios get rest API.
in mounted
mounted(){
var config = {
headers: {
'x-rapidapi-host': 'covid-19-coronavirus-statistics.p.rapidapi.com',
'x-rapidapi-key': '5156f83861mshd5c5731412d4c5fp18132ejsn8ae65e661a54'
}
};
axios.get('https://covid-19-coronavirus-statistics.p.rapidapi.com/v1/stats?
country=Thailand', config)
.then((response) => {
console.log(response.data);
});
}
Hope is help.
I've only tested this in Rails 4 but there's an interesting way to use a range with a where
hash to get this behavior.
User.where(id: 201..Float::INFINITY)
will generate the SQL
SELECT `users`.* FROM `users` WHERE (`users`.`id` >= 201)
The same can be done for less than with -Float::INFINITY
.
I just posted a similar question asking about doing this with dates here on SO.
>=
vs >
To avoid people having to dig through and follow the comments conversation here are the highlights.
The method above only generates a >=
query and not a >
. There are many ways to handle this alternative.
For discrete numbers
You can use a number_you_want + 1
strategy like above where I'm interested in Users with id > 200
but actually look for id >= 201
. This is fine for integers and numbers where you can increment by a single unit of interest.
If you have the number extracted into a well named constant this may be the easiest to read and understand at a glance.
Inverted logic
We can use the fact that x > y == !(x <= y)
and use the where not chain.
User.where.not(id: -Float::INFINITY..200)
which generates the SQL
SELECT `users`.* FROM `users` WHERE (NOT (`users`.`id` <= 200))
This takes an extra second to read and reason about but will work for non discrete values or columns where you can't use the + 1
strategy.
Arel table
If you want to get fancy you can make use of the Arel::Table
.
User.where(User.arel_table[:id].gt(200))
will generate the SQL
"SELECT `users`.* FROM `users` WHERE (`users`.`id` > 200)"
The specifics are as follows:
User.arel_table #=> an Arel::Table instance for the User model / users table
User.arel_table[:id] #=> an Arel::Attributes::Attribute for the id column
User.arel_table[:id].gt(200) #=> an Arel::Nodes::GreaterThan which can be passed to `where`
This approach will get you the exact SQL you're interested in however not many people use the Arel table directly and can find it messy and/or confusing. You and your team will know what's best for you.
Starting in Rails 5 you can also do this with dates!
User.where(created_at: 3.days.ago..DateTime::Infinity.new)
will generate the SQL
SELECT `users`.* FROM `users` WHERE (`users`.`created_at` >= '2018-07-07 17:00:51')
Once Ruby 2.6 is released (December 25, 2018) you'll be able to use the new infinite range syntax! Instead of 201..Float::INFINITY
you'll be able to just write 201..
. More info in this blog post.
What's the current state of your database when you run this script? Is it completely empty? Your SQL runs fine for me when creating a database from scratch, but errno 150 usually has to do with dropping & recreating tables that are part of a foreign key. I'm getting the feeling you're not working with a 100% fresh and new database.
If you're erroring out when "source"-ing your SQL file, you should be able to run the command "SHOW ENGINE INNODB STATUS" from the MySQL prompt immediately after the "source" command to see more detailed error info.
You may want to check out the manual entry too:
If you re-create a table that was dropped, it must have a definition that conforms to the foreign key constraints referencing it. It must have the right column names and types, and it must have indexes on the referenced keys, as stated earlier. If these are not satisfied, MySQL returns error number 1005 and refers to error 150 in the error message. If MySQL reports an error number 1005 from a CREATE TABLE statement, and the error message refers to error 150, table creation failed because a foreign key constraint was not correctly formed.
Follow the steps,
CFile/QFile/ifstream m_file; m_file.Open(path,Other parameter/mood to open file);
For reading file you have to make buffer or string to save data and you can pass that variable in read() method.
In simple words,
applicationContext.xml
defines the beans that are shared among all the servlets. If your application have more than one servlet, then defining the common resources in the applicationContext.xml
would make more sense.
spring-servlet.xml
defines the beans that are related only to that servlet. Here it is the dispatcher servlet. So, your Spring MVC controllers must be defined in this file.
There is nothing wrong in defining all the beans in the spring-servlet.xml
if you are running only one servlet in your web application.
For EF Core 2.0+ I had to take a different approach because they changed the API. As of March 2019 Microsoft recommends you put your database migration code in your application entry class but outside of the WebHost build code.
public class Program
{
public static void Main(string[] args)
{
var host = CreateWebHostBuilder(args).Build();
using (var serviceScope = host.Services.CreateScope())
{
var context = serviceScope.ServiceProvider.GetRequiredService<PersonContext>();
context.Database.Migrate();
}
host.Run();
}
public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.UseStartup<Startup>();
}
All these answers around here, as well as the answers in this question, suggest that loading absolute URLs, like "/foo/bar.properties" treated the same by class.getResourceAsStream(String)
and class.getClassLoader().getResourceAsStream(String)
. This is NOT the case, at least not in my Tomcat configuration/version (currently 7.0.40).
MyClass.class.getResourceAsStream("/foo/bar.properties"); // works!
MyClass.class.getClassLoader().getResourceAsStream("/foo/bar.properties"); // does NOT work!
Sorry, I have absolutely no satisfying explanation, but I guess that tomcat does dirty tricks and his black magic with the classloaders and cause the difference. I always used class.getResourceAsStream(String)
in the past and haven't had any problems.
PS: I also posted this over here
DBSIZE
returns the number of keys and it's easier to parse.
Downside: if a key has expired it may still count.
Try to execute below command in your terminal :
mysql -h localhost -P 3306 -u root -p
If you successfully connect to your database, then same thing has to happen with Mysql Workbench
.
If you are unable to connect then I think 3306
port is acquired by another process.
Find which process running on 3306
port. If required, give admin privileges using sudo
.
netstat -lnp | grep 3306
Kill/stop that process and restart your MySQL server. You are good to go.
Execute below command to find my.cnf
file in macbook.
mysql --help | grep cnf
You can change MySQL
port to any available port in your system. But after that, make sure you restart MySQL
server.
On my device TimeZone.getDefault()
is always returning UTC time zone.
I need to do this to get user configured time zone :
TimeZone.setDefault(null)
val tz = TimeZone.getDefault()
It will return user selected timezone.
Its because the font size (9px) is too small to display bold. Try 11px or more and it works fine.
public static void main(String args[]) throws ParseException {
String[] days = { "Sunday", "Monday", "Tuesday", "Wednesday",
"Thursday", "Friday", "Saturday" };
SimpleDateFormat format1 = new SimpleDateFormat("dd/MM/yyyy");
Date dt1 = format1.parse("20/10/2013");
Calendar c = Calendar.getInstance();
c.setTime(dt1);
int dayOfWeek = c.get(Calendar.DAY_OF_WEEK);
long diff = Calendar.getInstance().getTime().getTime() ;
System.out.println(dayOfWeek);
switch (dayOfWeek) {
case 6:
System.out.println(days[dayOfWeek - 1]);
break;
case 5:
System.out.println(days[dayOfWeek - 1]);
break;
case 4:
System.out.println(days[dayOfWeek - 1]);
break;
case 3:
System.out.println(days[dayOfWeek - 1]);
break;
case 2:
System.out.println(days[dayOfWeek - 1]);
break;
case 1:
System.out.println(days[dayOfWeek - 1]);
diff = diff -(dt1.getTime()- 3 );
long valuebefore = dt1.getTime();
long valueafetr = dt1.getTime()-2;
System.out.println("DATE IS befor subtraction :"+valuebefore);
System.out.println("DATE IS after subtraction :"+valueafetr);
long x= dt1.getTime()-(2 * 24 * 3600 * 1000);
System.out.println("Deducted date to find firday is - 2 days form Sunday :"+new Date((dt1.getTime()-(2*24*3600*1000))));
System.out.println("DIffrence from now on is :"+diff);
if(diff > 0) {
diff = diff / (1000 * 60 * 60 * 24);
System.out.println("Diff"+diff);
System.out.println("Date is Expired!"+(dt1.getTime() -(long)2));
}
break;
}
}
The :nth-child(n) selector matches every element that is the nth child, regardless of type, of its parent. Odd and even are keywords that can be used to match child elements whose index is odd or even (the index of the first child is 1).
this is what you want:
<html>
<head>
<style>
li { color: blue }<br>
li:nth-child(even) { color:red }
li:nth-child(odd) { color:green}
</style>
</head>
<body>
<ul>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
<li>ho</li>
</ul>
</body>
</html>
You can use an index in a range and then access the array via its index:
<ul>
<li v-for="index in 10" :key="index">
{{ shoppingItems[index].name }} - {{ shoppingItems[index].price }}
</li>
</ul>
You can also check the Official Documentation for more information.
First off I recommend you use the following constructor instead of the one you currently use:
new SerialPort("COM10", 115200, Parity.None, 8, StopBits.One);
Next, you really should remove this code:
// Wait 10 Seconds for data...
for (int i = 0; i < 1000; i++)
{
Thread.Sleep(10);
Console.WriteLine(sp.Read(buf,0,bufSize)); //prints data directly to the Console
}
And instead just loop until the user presses a key or something, like so:
namespace serialPortCollection
{ class Program
{
static void Main(string[] args)
{
SerialPort sp = new SerialPort("COM10", 115200);
sp.DataReceived += port_OnReceiveDatazz; // Add DataReceived Event Handler
sp.Open();
sp.WriteLine("$"); //Command to start Data Stream
Console.ReadLine();
sp.WriteLine("!"); //Stop Data Stream Command
sp.Close();
}
// My Event Handler Method
private static void port_OnReceiveDatazz(object sender,
SerialDataReceivedEventArgs e)
{
SerialPort spL = (SerialPort) sender;
byte[] buf = new byte[spL.BytesToRead];
Console.WriteLine("DATA RECEIVED!");
spL.Read(buf, 0, buf.Length);
foreach (Byte b in buf)
{
Console.Write(b.ToString());
}
Console.WriteLine();
}
}
}
Also, note the revisions to the data received event handler, it should actually print the buffer now.
UPDATE 1
I just ran the following code successfully on my machine (using a null modem cable between COM33 and COM34)
namespace TestApp
{
class Program
{
static void Main(string[] args)
{
Thread writeThread = new Thread(new ThreadStart(WriteThread));
SerialPort sp = new SerialPort("COM33", 115200, Parity.None, 8, StopBits.One);
sp.DataReceived += port_OnReceiveDatazz; // Add DataReceived Event Handler
sp.Open();
sp.WriteLine("$"); //Command to start Data Stream
writeThread.Start();
Console.ReadLine();
sp.WriteLine("!"); //Stop Data Stream Command
sp.Close();
}
private static void port_OnReceiveDatazz(object sender,
SerialDataReceivedEventArgs e)
{
SerialPort spL = (SerialPort) sender;
byte[] buf = new byte[spL.BytesToRead];
Console.WriteLine("DATA RECEIVED!");
spL.Read(buf, 0, buf.Length);
foreach (Byte b in buf)
{
Console.Write(b.ToString() + " ");
}
Console.WriteLine();
}
private static void WriteThread()
{
SerialPort sp2 = new SerialPort("COM34", 115200, Parity.None, 8, StopBits.One);
sp2.Open();
byte[] buf = new byte[100];
for (byte i = 0; i < 100; i++)
{
buf[i] = i;
}
sp2.Write(buf, 0, buf.Length);
sp2.Close();
}
}
}
UPDATE 2
Given all of the traffic on this question recently. I'm beginning to suspect that either your serial port is not configured properly, or that the device is not responding.
I highly recommend you attempt to communicate with the device using some other means (I use hyperterminal frequently). You can then play around with all of these settings (bitrate, parity, data bits, stop bits, flow control) until you find the set that works. The documentation for the device should also specify these settings. Once I figured those out, I would make sure my .NET SerialPort is configured properly to use those settings.
Some tips on configuring the serial port:
Note that when I said you should use the following constructor, I meant that use that function, not necessarily those parameters! You should fill in the parameters for your device, the settings below are common, but may be different for your device.
new SerialPort("COM10", 115200, Parity.None, 8, StopBits.One);
It is also important that you setup the .NET SerialPort to use the same flow control as your device (as other people have stated earlier). You can find more info here:
http://www.lammertbies.nl/comm/info/RS-232_flow_control.html
Use break
.
Unrelated to your question, I see in your code the line:
Violated = !(name.firstname == null) ? false : true;
In this line, you take a boolean value (name.firstname == null)
. Then, you apply the !
operator to it. Then, if the value is true, you set Violated to false; otherwise to true. So basically, Violated is set to the same value as the original expression (name.firstname == null)
. Why not use that, as in:
Violated = (name.firstname == null);
It's entirely dependent upon the actual function and the meaning of the multiple values, and their sizes:
Most likely, the userdata()
function is returning an object, not a string. Look into the documentation (or var_dump the return value) to find out which value you need to use.
Because you are creatin a table expression, you have to specify the structure of that table, you can achive this on two way:
1: In the select you can use the original columnnames (as in your first example), but with aggregates you have to use an alias (also in conflicting names). Like
sum(totalitems) as bkdqty
2: You need to specify the column names rigth after the name of the talbe, and then you just have to take care that the count of the names should mach the number of coulms was selected in the query. Like:
d (duration, bkdqty)
AS (Select.... )
With the second solution both of your query will work!
Anyone who says that getting the current time in Google Sheets is not unique to Google's scripting environment obviously has never used Google Apps Script.
That being said, do you want to return current time as to what? The script user's timezone? The script owner's timezone?
The script timezone is set in the Script Editor, by the script owner. But different authorized users of the script can set timezone for the spreadsheet they are using from File/Spreadsheet settings
menu of Google Sheets.
I guess you want the first option. You can use the built in function to get the spreadsheet timezone, and then use the Utilities
class to format date.
var timezone = SpreadsheetApp.getActive().getSpreadsheetTimeZone();
var date = Utilities.formatDate(new Date(), SpreadsheetApp.getActive().getSpreadsheetTimeZone(), "EEE, d MMM yyyy HH:mm")
Alternatively, get the timezone offset from UTC time using Javascript's date method, format the timezone, and pass it into Utilities.formatDate()
.
This requires one minor adjustment though. The offset returned by getTimezoneOffset()
runs contradictory to how we often think of timezone. If the offset is positive, the local timezone is behind UTC, like US timezones. If the offset is negative, the local timezone is ahead UTC, like Asia/Bangkok, Australian Eastern Standard Time etc.
const now = new Date();
// getTimezoneOffset returns the offset in minutes, so we have to divide it by 60 to get the hour offset.
const offset = now.getTimezoneOffset() / 60
// Change the sign of the offset and format it
const timeZone = "GMT+" + offset * (-1)
Logger.log(Utilities.formatDate(now, timeZone, 'EEE, d MMM yyyy HH:mm');
Another problem can be that the python version you are using is not yet supported by opencv-python.
E.g. as of right now there is no opencv-python for python 3.8. You would need to downgrade your python to 3.7.5 for now.
Java is a platform. It consists of two products - the software development kit, and the runtime environment.
When Java was first released, it was apparently just called Java. If you were a developer, you also knew the version, which was a normal "1.0" and later a "1.1". The two products that were part of the platform were also given names:
Apparently the changes in version 1.2 so significant that they started calling the platform as Java 2.
The default "distribution" of the platform was given the moniker "standard" to contrast it with its siblings. So you had three platforms:
The JDK was officially renamed to "Java 2 Software Development Kit".
When version 1.5 came out, the suits decided that they needed to "rebrand" the product. So the Java platform got two versions - the product version "5" and the developer version "1.5" (Yes, the rule is explicitly mentioned -- "drop the '1.'). However, the "2" was retained in the name. So now the platform is officially called "Java 2 Platform Standard Edition 5.0 (J2SE 5.0)".
When version 1.6 come out, someone realized that having two numbers in the name was weird. So they decide to completely drop the 2 (and the ".0" suffix), and we end up with the "Java Platform, Standard Edition 6 (Java SE 6)" containing the "Java SE Development Kit 6 (JDK 6)" and the "Java SE Runtime Environment 6 (JRE 6)".
Version 1.7 did not do anything stupid. If I had to guess, the next big change would be dropping the "SE", so that the cycle completes and the JDK again gets to be called the "Java Development Kit".
For simplicity, a bunch of trademark signs were omitted. So assume Java™, JDK™ and JRE™.
SO seems to have trouble rendering nested lists.
Just drop the "1." from versions printed by javac -version
and java -version
and you're good to go.
MAIN will decide the first activity that will used when the application will start. Launcher will add application in the application dashboard.
If you have them already and you are still getting the error message but maybe its because you might be using more than more category or action in an intent-filter. In an intent filter there can only be one such tag. To add another category, put it in another intent filter, like the following
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<!--
TODO - Add necessary intent filter information so that this
Activity will accept Intents with the
action "android.intent.action.VIEW" and with an "http"
schemed URL
-->
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<data android:scheme="http" />
<category android:name="android.intent.category.BROWSABLE" />
</intent-filter>
Python really tries hard to intelligently set sys.path
. How it is
set can get really complicated. The following guide is a watered-down,
somewhat-incomplete, somewhat-wrong, but hopefully-useful guide
for the rank-and-file python programmer of what happens when python
figures out what to use as the initial values of sys.path
,
sys.executable
, sys.exec_prefix
, and sys.prefix
on a normal
python installation.
First, python does its level best to figure out its actual physical
location on the filesystem based on what the operating system tells
it. If the OS just says "python" is running, it finds itself in $PATH.
It resolves any symbolic links. Once it has done this, the path of
the executable that it finds is used as the value for sys.executable
, no ifs,
ands, or buts.
Next, it determines the initial values for sys.exec_prefix
and
sys.prefix
.
If there is a file called pyvenv.cfg
in the same directory as
sys.executable
or one directory up, python looks at it. Different
OSes do different things with this file.
One of the values in this config file that python looks for is
the configuration option home = <DIRECTORY>
. Python will use this directory instead of the directory containing sys.executable
when it dynamically sets the initial value of sys.prefix
later. If the applocal = true
setting appears in the
pyvenv.cfg
file on Windows, but not the home = <DIRECTORY>
setting,
then sys.prefix
will be set to the directory containing sys.executable
.
Next, the PYTHONHOME
environment variable is examined. On Linux and Mac,
sys.prefix
and sys.exec_prefix
are set to the PYTHONHOME
environment variable, if
it exists, superseding any home = <DIRECTORY>
setting in pyvenv.cfg
. On Windows,
sys.prefix
and sys.exec_prefix
is set to the PYTHONHOME
environment variable,
if it exists, unless a home = <DIRECTORY>
setting is present in pyvenv.cfg
,
which is used instead.
Otherwise, these sys.prefix
and sys.exec_prefix
are found by walking backwards
from the location of sys.executable
, or the home
directory given by pyvenv.cfg
if any.
If the file lib/python<version>/dyn-load
is found in that directory
or any of its parent directories, that directory is set to be to be
sys.exec_prefix
on Linux or Mac. If the file
lib/python<version>/os.py
is is found in the directory or any of its
subdirectories, that directory is set to be sys.prefix
on Linux,
Mac, and Windows, with sys.exec_prefix
set to the same value as
sys.prefix
on Windows. This entire step is skipped on Windows if
applocal = true
is set. Either the directory of sys.executable
is
used or, if home
is set in pyvenv.cfg
, that is used instead for
the initial value of sys.prefix
.
If it can't find these "landmark" files or sys.prefix
hasn't been
found yet, then python sets sys.prefix
to a "fallback"
value. Linux and Mac, for example, use pre-compiled defaults as the
values of sys.prefix
and sys.exec_prefix
. Windows waits
until sys.path
is fully figured out to set a fallback value for
sys.prefix
.
Then, (what you've all been waiting for,) python determines the initial values
that are to be contained in sys.path
.
sys.path
.
On Windows, this is always the empty string, which tells python to
use the full path where the script is located instead.sys.path
, unless you're
on Windows and applocal
is set to true in pyvenv.cfg
.<prefix>/lib/python35.zip
on Linux/Mac and
os.path.join(os.dirname(sys.executable), "python.zip")
on Windows, is added to sys.path
.applocal = true
was set in pyvenv.cfg
, then the contents of the subkeys of the registry key
HK_CURRENT_USER\Software\Python\PythonCore\<DLLVersion>\PythonPath\
are added, if any.applocal = true
was set in pyvenv.cfg
, and sys.prefix
could not be found,
then the core contents of the of the registry key HK_CURRENT_USER\Software\Python\PythonCore\<DLLVersion>\PythonPath\
is added, if it exists;applocal = true
was set in pyvenv.cfg
, then the contents of the subkeys of the registry key
HK_LOCAL_MACHINE\Software\Python\PythonCore\<DLLVersion>\PythonPath\
are added, if any.applocal = true
was set in pyvenv.cfg
, and sys.prefix
could not be found,
then the core contents of the of the registry key HK_CURRENT_USER\Software\Python\PythonCore\<DLLVersion>\PythonPath\
is added, if it exists;sys.prefix
.sys.exec_prefix
is added. On Windows, the directory
which was used (or would have been used) to search dynamically for sys.prefix
is
added.At this stage on Windows, if no prefix was found, then python will try to
determine it by searching all the directories in sys.path
for the landmark files,
as it tried to do with the directory of sys.executable
previously, until it finds something.
If it doesn't, sys.prefix
is left blank.
Finally, after all this, Python loads the site
module, which adds stuff yet further to sys.path
:
It starts by constructing up to four directories from a head and a tail part. For the head part, it uses
sys.prefix
andsys.exec_prefix
; empty heads are skipped. For the tail part, it uses the empty string and thenlib/site-packages
(on Windows) orlib/pythonX.Y/site-packages
and thenlib/site-python
(on Unix and Macintosh). For each of the distinct head-tail combinations, it sees if it refers to an existing directory, and if so, adds it to sys.path and also inspects the newly added path for configuration files.
all other answers are Correct But Before you run
php artisan migrate
make sure you run this code first
composer require doctrine/dbal
to avoid this error
RuntimeException : Changing columns for table "items" requires Doctrine DBAL; install "doctrine/dbal".
I agree with the majority view that external stylesheets are the prefered method.
However, here are some practical exceptions:
Dynamic background images. CSS stylesheets are static files so you need to use an inline style to add a dynamic (from a database, CMS etc...) background-image
style.
If an element needs to be hidden when the page loads, using an external stylesheet for this is not practical, since there will always be some delay before the stylesheet is processed and the element will be visible until that happens. style="display: none;"
is the best way to achieve this.
If an application is going to give the user fine control over a particular CSS value, e.g. text color, then it may be necessary to add this to inline style
elements or in-page <style></style>
blocks. E.g. style="color:#{{ page.color }}"
, or <style> p.themed { color: #{{ page.color }}; }</style>
If is from a text file and and presuming name file are surrounded by white spaces this is a way:
$a = get-content c:\myfile.txt
$b = $a | select-string -pattern "\s.+\..{3,4}\s" | select -ExpandProperty matches | select -ExpandProperty value
$b | % {"File name:{0} - Extension:{1}" -f $_.substring(0, $_.lastindexof('.')) , $_.substring($_.lastindexof('.'), ($_.length - $_.lastindexof('.'))) }
If is a file you can use something like this based on your needs:
$a = dir .\my.file.xlsx # or $a = get-item c:\my.file.xlsx
$a
Directory: Microsoft.PowerShell.Core\FileSystem::C:\ps
Mode LastWriteTime Length Name
---- ------------- ------ ----
-a--- 25/01/10 11.51 624 my.file.xlsx
$a.BaseName
my.file
$a.Extension
.xlsx
Real VNC Viewer (5.0.3) - Free :
Options->Expert->UseAllMonitors = True
This is CSS issues. I don't know why @Html.DropDownListFor in Bootstrap 4 doest work. Surely this is class design problem. Anyways the work arround is, if your Dropdown input box has CSS Padding: #px, # px; element then disable it. Hope this will work.
Definitely compact
is the best approach for solving this task. However, we can achieve the same result just with a simple subtraction:
[1, nil, 3, nil, nil] - [nil]
=> [1, 3]
Here's a one-liner using LINQ and avoiding any run-time evaluation of select strings:
someDataTable.Rows.Cast<DataRow>().Where(
r => r.ItemArray[0] == someValue).ToList().ForEach(r => r.Delete());
No formulas required. This works on as many columns as you need, but will only compare columns in the same worksheet:
NOTE: remove any duplicates from the individual columns first!
Duplicates are now highlighted in red
if you have to pass the value you should enter url like this
localhost/yoururl/index.php/products_controller/delete_controller/70
and in controller function you can read like this
function delete_controller( $product_id = NULL ) {
echo $product_id;
}
You can use like that:
data
is DataTable
data.DefaultView.ToTable(true, "Id", "Name", "Role", "DC1", "DC2", "DC3", "DC4", "DC5", "DC6", "DC7");
but performance will be down. try to use below code:
data.AsEnumerable().Distinct(System.Data.DataRowComparer.Default).ToList();
For Performance ; http://onerkaya.blogspot.com/2013/01/distinct-dataviewtotable-vs-linq.html
Improving the answer of @user134548, without bits arithmetic:
public static bool IsPowerOfTwo(ulong n)
{
if (n % 2 != 0) return false; // is odd (can't be power of 2)
double exp = Math.Log(n, 2);
if (exp != Math.Floor(exp)) return false; // if exp is not integer, n can't be power
return Math.Pow(2, exp) == n;
}
This works fine for:
IsPowerOfTwo(9223372036854775809)
when try to make foreign key when using laravel migration
like this example:
user table
public function up()
{
Schema::create('flights', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->TinyInteger('color_id')->unsigned();
$table->foreign('color_id')->references('id')->on('colors');
$table->timestamps();
});
}
colors table
public function up()
{
Schema::create('flights', function (Blueprint $table) {
$table->increments('id');
$table->string('color');
$table->timestamps();
});
}
sometimes properties didn't work
[PDOException]
SQLSTATE[HY000]: General error: 1215 Cannot add foreign key constraint
this error happened because the foreign key (type) in [user table] is deferent from primary key (type) in [colors table]
To solve this problem should change the primary key in [colors table]
$table->tinyIncrements('id');
When you use primary key $table->Increments('id');
you should use Integer
as a foreign key
$table-> unsignedInteger('fk_id');
$table->foreign('fk_id')->references('id')->on('table_name');
When you use primary key $table->tinyIncrements('id');
you should use unsignedTinyInteger
as a foreign key
$table-> unsignedTinyInteger('fk_id');
$table->foreign('fk_id')->references('id')->on('table_name');
When you use primary key $table->smallIncrements('id');
you should use unsignedSmallInteger
as a foreign key
$table-> unsignedSmallInteger('fk_id');
$table->foreign('fk_id')->references('id')->on('table_name');
When you use primary key $table->mediumIncrements('id');
you should use unsignedMediumInteger
as a foreign key
$table-> unsignedMediumInteger('fk_id');
$table->foreign('fk_id')->references('id')->on('table_name');
If you use ASP.NET, it's really easy to generate image based fonts without actually having to install (as in adding to the installed font base) fonts on the server by using:
PrivateFontCollection pfont = new PrivateFontCollection();
pfont.AddFontFile(filename);
FontFamily ff = pfont.Families[0];
and then drawing with that font onto a Graphics
.
It depends on what kind of markdown parser you're using. For example in showdownjs there is an option {simpleLineBreaks: true}
which gives corresponding html for the following md input:
a line
wrapped in two
<p>a line<br>
wrapped in two</p>
var urlString = originalString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
var address = "American Tourister, Abids Road, Bogulkunta, Hyderabad, Andhra Pradesh, India"
let escapedAddress = address.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed)
let urlpath = String(format: "http://maps.googleapis.com/maps/api/geocode/json?address=\(escapedAddress)")
Use stringByAddingPercentEncodingWithAllowedCharacters
:
var escapedAddress = address.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet())
Use Deprecated in iOS 9 and OS X v10.11stringByAddingPercentEscapesUsingEncoding:
var address = "American Tourister, Abids Road, Bogulkunta, Hyderabad, Andhra Pradesh, India"
var escapedAddress = address.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)
let urlpath = NSString(format: "http://maps.googleapis.com/maps/api/geocode/json?address=\(escapedAddress)")
Just wondering why you are using 2 directives?
It seems like, in this case it would be more straightforward to have a controller as the parent - handle adding the data from your service to its $scope, and pass the model you need from there into your warrantyDirective.
Or for that matter, you could use 0 directives to achieve the same result. (ie. move all functionality out of the separate directives and into a single controller).
It doesn't look like you're doing any explicit DOM transformation here, so in this case, perhaps using 2 directives is overcomplicating things.
Alternatively, have a look at the Angular documentation for directives: http://docs.angularjs.org/guide/directive The very last example at the bottom of the page explains how to wire up dependent directives.
There are 2 possibilities. In either case PyGame has to be initialized by pygame.init
.
import pygame
pygame.init()
Use either the pygame.font
module and create a pygame.font.SysFont
or pygame.font.Font
object. render()
a pygame.Surface
with the text and blit
the Surface to the screen:
my_font = pygame.font.SysFont(None, 50)
text_surface = myfont.render("Hello world!", True, (255, 0, 0))
screen.blit(text_surface, (10, 10))
Or use the pygame.freetype
module. Create a pygame.freetype.SysFont()
or pygame.freetype.Font
object. render()
a pygame.Surface
with the text or directly render_to()
the text to the screen:
my_ft_font = pygame.freetype.SysFont('Times New Roman', 50)
my_ft_font.render_to(screen, (10, 10), "Hello world!", (255, 0, 0))
See also Text and font
Minimal pygame.font
example: repl.it/@Rabbid76/PyGame-Text
import pygame
pygame.init()
window = pygame.display.set_mode((500, 150))
clock = pygame.time.Clock()
font = pygame.font.SysFont(None, 100)
text = font.render('Hello World', True, (255, 0, 0))
background = pygame.Surface(window.get_size())
ts, w, h, c1, c2 = 50, *window.get_size(), (128, 128, 128), (64, 64, 64)
tiles = [((x*ts, y*ts, ts, ts), c1 if (x+y) % 2 == 0 else c2) for x in range((w+ts-1)//ts) for y in range((h+ts-1)//ts)]
for rect, color in tiles:
pygame.draw.rect(background, color, rect)
run = True
while run:
clock.tick(60)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
window.blit(background, (0, 0))
window.blit(text, text.get_rect(center = window.get_rect().center))
pygame.display.flip()
pygame.quit()
exit()
Minimal pygame.freetype
example: repl.it/@Rabbid76/PyGame-FreeTypeText
import pygame
import pygame.freetype
pygame.init()
window = pygame.display.set_mode((500, 150))
clock = pygame.time.Clock()
ft_font = pygame.freetype.SysFont('Times New Roman', 80)
background = pygame.Surface(window.get_size())
ts, w, h, c1, c2 = 50, *window.get_size(), (128, 128, 128), (64, 64, 64)
tiles = [((x*ts, y*ts, ts, ts), c1 if (x+y) % 2 == 0 else c2) for x in range((w+ts-1)//ts) for y in range((h+ts-1)//ts)]
for rect, color in tiles:
pygame.draw.rect(background, color, rect)
run = True
while run:
clock.tick(60)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
window.blit(background, (0, 0))
text_rect = ft_font.get_rect('Hello World')
text_rect.center = window.get_rect().center
ft_font.render_to(window, text_rect.topleft, 'Hello World', (255, 0, 0))
pygame.display.flip()
pygame.quit()
exit()
The word "read" is vague, but here is an example which reads a jpeg file using the Image class, and prints information about it.
from PIL import Image
jpgfile = Image.open("picture.jpg")
print(jpgfile.bits, jpgfile.size, jpgfile.format)
For the ones developing in Kotlin, there is a sweet method provided by the Anko library that makes the process of displaying a ProgressDialog
a breeze!
Based on that link:
val dialog = progressDialog(message = "Please wait a bit…", title = "Fetching data")
dialog.show()
//....
dialog.dismiss()
This will show a Progress Dialog with the progress % displayed (for which you have to pass the init
parameter also to calculate the progress).
There is also the indeterminateProgressDialog()
method, which provides the Spinning Circle animation indefinitely until dismissed:
indeterminateProgressDialog("Loading...").show()
Shout out to this blog which led me to this solution.
Hey, we just did a global find-replace, changing Required=" to jRequired=". Then you just change it in the jquery code as well (jquery_helper.js -> Function ValidateControls). Now our validation continues as before and Chrome leaves us alone! :)
An index is used to speed up searching in the database. MySQL have some good documentation on the subject (which is relevant for other SQL servers as well): http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html
An index can be used to efficiently find all rows matching some column in your query and then walk through only that subset of the table to find exact matches. If you don't have indexes on any column in the WHERE
clause, the SQL
server has to walk through the whole table and check every row to see if it matches, which may be a slow operation on big tables.
The index can also be a UNIQUE
index, which means that you cannot have duplicate values in that column, or a PRIMARY KEY
which in some storage engines defines where in the database file the value is stored.
In MySQL you can use EXPLAIN
in front of your SELECT
statement to see if your query will make use of any index. This is a good start for troubleshooting performance problems. Read more here:
http://dev.mysql.com/doc/refman/5.0/en/explain.html
import numpy as np
import scipy.stats
def mean_confidence_interval(data, confidence=0.95):
a = 1.0 * np.array(data)
n = len(a)
m, se = np.mean(a), scipy.stats.sem(a)
h = se * scipy.stats.t.ppf((1 + confidence) / 2., n-1)
return m, m-h, m+h
you can calculate like this way.
body
{
width:80%;
margin-left:auto;
margin-right:auto;
}
This will work on most browsers, including IE.
JLabel label = new JLabel("Hello World");
label.setFont(new Font("Calibri", Font.BOLD, 20));
It seems that ARM64 was created by Apple and AARCH64 by the others, most notably GNU/GCC guys.
After some googling I found this link:
The LLVM 64-bit ARM64/AArch64 Back-Ends Have Merged
So it makes sense, iPad calls itself ARM64, as Apple is using LLVM, and Edge uses AARCH64, as Android is using GNU GCC toolchain.
This is an old question, but you can now write using statements without needing to block each one. They will be disposed of in reverse order when the containing block is finished.
using var responseStream = response.GetResponseStream();
using var reader = new StreamReader(responseStream);
using var writer = new StreamWriter(filename);
int chunkSize = 1024;
while (!reader.EndOfStream)
{
char[] buffer = new char[chunkSize];
int count = reader.Read(buffer, 0, chunkSize);
if (count != 0)
{
writer.Write(buffer, 0, count);
}
}
https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/proposals/csharp-8.0/using
OK seems like a caching issue of some sort. There was indeed an error in code with the R.id.some_id not being found but the editor was not picking it up displaying that there were no errors.
On Windows with a virtual Windows 7 the only thing that worked for me was using NAT and port-forwarding (couldn't get bridged connection running). I found a tutorial here: http://www.howtogeek.com/122641/how-to-forward-ports-to-a-virtual-machine-and-use-it-as-a-server/ (scroll down to the part with "Forwarding Ports to a Virtual Machine").
With this changes I could reach the xampp website with "http://192.168.xx.x:8888/mywebsite" in internet explorer 10 on my virtual machine.
I found the IP in XAMPP Control Panel > Netstat ("System").
Thanks all for your responses. I used HtmlRenderer external dll (library) to achieve the same and found below code for the same.
Here is the code for this
public void ConvertHtmlToImage()
{
Bitmap m_Bitmap = new Bitmap(400, 600);
PointF point = new PointF(0, 0);
SizeF maxSize = new System.Drawing.SizeF(500, 500);
HtmlRenderer.HtmlRender.Render(Graphics.FromImage(m_Bitmap),
"<html><body><p>This is some html code</p>"
+ "<p>This is another html line</p></body>",
point, maxSize);
m_Bitmap.Save(@"C:\Test.png", ImageFormat.Png);
}
This is the easiest way I can figure out:
#!/usr/bin/python3
for i in range(97, 123):
print("{:c}".format(i), end='')
So, 97 to 122 are the ASCII number equivalent to 'a' to and 'z'. Notice the lowercase and the need to put 123, since it will not be included).
In print function make sure to set the {:c}
(character) format, and, in this case, we want it to print it all together not even letting a new line at the end, so end=''
would do the job.
The result is this:
abcdefghijklmnopqrstuvwxyz
There are better alternatives to this. Many was already posted so I give you only your stuff back with fixes:
<?php
function RandomString()
{
global $randstring ;
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$randstring = '';
for ($i = 0; $i < 10; $i++) {
$randstring .= $characters[rand(0, strlen($characters))];
}
return $randstring;
}
RandomString();
echo $randstring;
?>
Also you may be interested in:
<?php
function RandomString()
{
global $randstring;
$characters = str_split('0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ');
array_filter ($characters,function($var)use($characters,&$randstring){
$randstring .= $characters[rand(0, count($characters)-1)];
});
return $randstring;
}
RandomString();
echo $randstring.'<hr>';
//.. OR ..
$randstring = '';
echo(RandomString());
?>
Or another one:
<?php
function s($length){
for($i=0;
($i<$length) and
(
($what=rand(1,3))
and
(
(
($what==1) and
($t=rand(48, 57)
)
) or
(
($what==2) and
($t=rand(65, 90))
) or
(
($what==3) and
($t=rand(97, 122)
)
)
) and
(print chr($t))
);
$i++)
;
}
s(10);
?>
You should use the background attribute to give an image to that element, and I would use ::after instead of before, this way it should be already drawn on top of your element.
.Modal:before{
content: '';
background:url('blackCarrot.png');
width: /* width of the image */;
height: /* height of the image */;
display: block;
}
You need to first run initdb. It will create the database cluster and the initial setup
See How to configure postgresql for the first time? and http://www.postgresql.org/docs/8.4/static/app-initdb.html
This command helped me on linux mint when i had exact same problem
gcc filename.c -L/usr/include -lreadline -o filename
You could use alias if you compile it many times Forexample:
alias compilefilename='gcc filename.c -L/usr/include -lreadline -o filename'
you can use the postrgesql chr(int) function:
insert into test values (2,'|| chr(39)||'my users'||chr(39)||');
Like others mentioned, CPython can use threads only for I/O waits due to GIL.
If you want to benefit from multiple cores for CPU-bound tasks, use multiprocessing:
from multiprocessing import Process
def f(name):
print 'hello', name
if __name__ == '__main__':
p = Process(target=f, args=('bob',))
p.start()
p.join()
MySQL: In general, make necessary changes par your requirement:
UPDATE
shopping_cart sc
LEFT JOIN
package pc ON sc. package_id = pc.id
SET
sc. amount = pc.amount
Armin's answer is so useful, thank you. #2 is what's most important to know when trying to set up unload events that work in most browsers: you cannot alert() or confirm(), but returning a string will generate a confirm modal.
But I found that even with just returning a string, I had some cross-browser issues specific to Mootools (using version 1.4.5 in this instance). This Mootools-specific implementation worked great in Firefox, but did not result in a confirm popup in Chrome or Safari:
window.addEvent("beforeunload", function() {
return "Are you sure you want to leave this page?";
});
So in order to get my onbeforeonload event to work across browsers, I had to use the JavaScript native call:
window.onbeforeunload = function() {
return "Are you sure you want to leave this page?";
}
Not sure why this is the case, or if it's been fixed in later versions of Mootools.
If you need to download a folder via a Linux command try this out:
$ scp [email protected]:foobar.txt -r /some/local/directory
Sources:
Related Post: How to download a file from server using SSH?
8)
Drop a pidfile somewhere (e.g. /tmp). Then you can check to see if the process is running by checking to see if the PID in the file exists. Don't forget to delete the file when you shut down cleanly, and check for it when you start up.
#/usr/bin/env python
import os
import sys
pid = str(os.getpid())
pidfile = "/tmp/mydaemon.pid"
if os.path.isfile(pidfile):
print "%s already exists, exiting" % pidfile
sys.exit()
file(pidfile, 'w').write(pid)
try:
# Do some actual work here
finally:
os.unlink(pidfile)
Then you can check to see if the process is running by checking to see if the contents of /tmp/mydaemon.pid are an existing process. Monit (mentioned above) can do this for you, or you can write a simple shell script to check it for you using the return code from ps.
ps up `cat /tmp/mydaemon.pid ` >/dev/null && echo "Running" || echo "Not running"
For extra credit, you can use the atexit module to ensure that your program cleans up its pidfile under any circumstances (when killed, exceptions raised, etc.).
In my case I need to set VERIFYHOST
and VERIFYPEER
to false
, like this:
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
before the call to curl_exec($ch)
.
Because i am working between two development environments with self-assigned certificates.
With valid certificates there is no need to set VERIFYHOST
and VERIFYPEER
to false
because the curl_exec($ch)
method will work and return the response you expect.
In javascript there are trues and truthys. When something is true it is obviously true or false. When something is truthy it may or may not be a boolean, but the "cast" value of is a boolean.
Examples.
true == true; // (true) true
1 == true; // (true) truthy
"hello" == true; // (true) truthy
[1, 2, 3] == true; // (true) truthy
[] == false; // (true) truthy
false == false; // (true) true
0 == false; // (true) truthy
"" == false; // (true) truthy
undefined == false; // (true) truthy
null == false; // (true) truthy
This can make things simpler if you want to check if a string is set or an array has any values.
var users = [];
if(users) {
// this array is populated. do something with the array
}
var name = "";
if(!name) {
// you forgot to enter your name!
}
And as stated. expect(something).toBe(true)
and expect(something).toBeTrue()
is the same. But expect(something).toBeTruthy()
is not the same as either of those.
For PHP >= 5.3.0 try
PHP magic constants.
__DIR__
And make your path relative.
For PHP < 5.3.0 try
dirname(__FILE__)
You can now use RPC libraries that support Python and Javascript such as zerorpc
From their front page:
Node.js Client
var zerorpc = require("zerorpc");
var client = new zerorpc.Client();
client.connect("tcp://127.0.0.1:4242");
client.invoke("hello", "RPC", function(error, res, more) {
console.log(res);
});
Python Server
import zerorpc
class HelloRPC(object):
def hello(self, name):
return "Hello, %s" % name
s = zerorpc.Server(HelloRPC())
s.bind("tcp://0.0.0.0:4242")
s.run()
You can use IntStream.iterate()
to get the index:
String[] names = {"Sam","Pamela", "Dave", "Pascal", "Erik"};
List<String> nameList = IntStream.iterate(0, i -> i < names.length, i -> i + 1)
.filter(i -> names[i].length() <= i)
.mapToObj(i -> names[i])
.collect(Collectors.toList());
This only works for Java 9 upwards in Java 8 you can use this:
String[] names = {"Sam","Pamela", "Dave", "Pascal", "Erik"};
List<String> nameList = IntStream.iterate(0, i -> i + 1)
.limit(names.length)
.filter(i -> names[i].length() <= i)
.mapToObj(i -> names[i])
.collect(Collectors.toList());
import * as utils from './utils.js';
If you do the above, you will be able to use functions in utils.js as
utils.someFunction()
They are case insensitive, unless you do a binary comparison.
const input = document.getElementById('input')_x000D_
_x000D_
input.addEventListener('change', (event) => {_x000D_
const target = event.target_x000D_
if (target.files && target.files[0]) {_x000D_
_x000D_
/*Maximum allowed size in bytes_x000D_
5MB Example_x000D_
Change first operand(multiplier) for your needs*/_x000D_
const maxAllowedSize = 5 * 1024 * 1024;_x000D_
if (target.files[0].size > maxAllowedSize) {_x000D_
// Here you can ask your users to load correct file_x000D_
target.value = ''_x000D_
}_x000D_
}_x000D_
})
_x000D_
<input type="file" id="input" />
_x000D_
If you need to validate file type, write in comments below and I'll share my solution.
(Spoiler: accept
attribute is not bulletproof solution)
using System;
using System.Linq;
using MySql.Data.MySqlClient;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
// add here your connection details
String connectionString = "Server=localhost;Database=database;Uid=username;Pwd=password;";
try
{
MySqlConnection connection = new MySqlConnection(connectionString);
connection.Open();
Console.WriteLine("MySQL version: " + connection.ServerVersion);
connection.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
Console.ReadKey();
}
}
}
make sure your database server is running if its not running then its not able to make connection and bydefault mysql running on 3306 so don't need mention port if same in case of port number is different then we need to mention port
It is the ternary conditional operator.
If the condition in the parenthesis before the ?
is true, it returns the value to the left of the :
, otherwise the value to the right.
Another posibility is using intent.getAction:
In Service:
public class SampleService inherits Service{
static final String ACTION_START = "com.yourcompany.yourapp.SampleService.ACTION_START";
static final String ACTION_DO_SOMETHING_1 = "com.yourcompany.yourapp.SampleService.DO_SOMETHING_1";
static final String ACTION_DO_SOMETHING_2 = "com.yourcompany.yourapp.SampleService.DO_SOMETHING_2";
static final String ACTION_STOP_SERVICE = "com.yourcompany.yourapp.SampleService.STOP_SERVICE";
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
String action = intent.getAction();
//System.out.println("ACTION: "+action);
switch (action){
case ACTION_START:
startingService(intent.getIntExtra("valueStart",0));
break;
case ACTION_DO_SOMETHING_1:
int value1,value2;
value1=intent.getIntExtra("value1",0);
value2=intent.getIntExtra("value2",0);
doSomething1(value1,value2);
break;
case ACTION_DO_SOMETHING_2:
value1=intent.getIntExtra("value1",0);
value2=intent.getIntExtra("value2",0);
doSomething2(value1,value2);
break;
case ACTION_STOP_SERVICE:
stopService();
break;
}
return START_STICKY;
}
public void startingService(int value){
//calling when start
}
public void doSomething1(int value1, int value2){
//...
}
public void doSomething2(int value1, int value2){
//...
}
public void stopService(){
//...destroy/release objects
stopself();
}
}
In Activity:
public void startService(int value){
Intent myIntent = new Intent(SampleService.ACTION_START);
myIntent.putExtra("valueStart",value);
startService(myIntent);
}
public void serviceDoSomething1(int value1, int value2){
Intent myIntent = new Intent(SampleService.ACTION_DO_SOMETHING_1);
myIntent.putExtra("value1",value1);
myIntent.putExtra("value2",value2);
startService(myIntent);
}
public void serviceDoSomething2(int value1, int value2){
Intent myIntent = new Intent(SampleService.ACTION_DO_SOMETHING_2);
myIntent.putExtra("value1",value1);
myIntent.putExtra("value2",value2);
startService(myIntent);
}
public void endService(){
Intent myIntent = new Intent(SampleService.STOP_SERVICE);
startService(myIntent);
}
Finally, In Manifest file:
<service android:name=".SampleService">
<intent-filter>
<action android:name="com.yourcompany.yourapp.SampleService.ACTION_START"/>
<action android:name="com.yourcompany.yourapp.SampleService.DO_SOMETHING_1"/>
<action android:name="com.yourcompany.yourapp.SampleService.DO_SOMETHING_2"/>
<action android:name="com.yourcompany.yourapp.SampleService.STOP_SERVICE"/>
</intent-filter>
</service>
If you're wanting to run the script and end at a prompt (so you can inspect variables, etc), then use:
python -i test.py
That will run the script and then drop you into a Python interpreter.
This script will find files having a modification date of two minutes before and after the given date (and you can change the values in the conditions as per your requirement)
PATH_SRC="/home/celvas/Documents/Imp_Task/"
PATH_DST="/home/celvas/Downloads/zeeshan/"
cd $PATH_SRC
TODAY=$(date -d "$(date +%F)" +%s)
TODAY_TIME=$(date -d "$(date +%T)" +%s)
for f in `ls`;
do
# echo "File -> $f"
MOD_DATE=$(stat -c %y "$f")
MOD_DATE=${MOD_DATE% *}
# echo MOD_DATE: $MOD_DATE
MOD_DATE1=$(date -d "$MOD_DATE" +%s)
# echo MOD_DATE: $MOD_DATE
DIFF_IN_DATE=$[ $MOD_DATE1 - $TODAY ]
DIFF_IN_DATE1=$[ $MOD_DATE1 - $TODAY_TIME ]
#echo DIFF: $DIFF_IN_DATE
#echo DIFF1: $DIFF_IN_DATE1
if [[ ($DIFF_IN_DATE -ge -120) && ($DIFF_IN_DATE1 -le 120) && (DIFF_IN_DATE1 -ge -120) ]]
then
echo File lies in Next Hour = $f
echo MOD_DATE: $MOD_DATE
#mv $PATH_SRC/$f $PATH_DST/$f
fi
done
For example you want files having modification date before the given date only, you may change 120
to 0
in $DIFF_IN_DATE
parameter discarding the conditions of $DIFF_IN_DATE1
parameter.
Similarly if you want files having modification date 1 hour before and after given date,
just replace 120
by 3600
in if CONDITION
.
So if I wanted to return a first name and last name like: Hello Fred Gerbig I would use the code below, this code works but is it actually the most correct way to do it?
import sys
def main():
if len(sys.argv) >= 2:
fname = sys.argv[1]
lname = sys.argv[2]
else:
name = 'World'
print 'Hello', fname, lname
if __name__ == '__main__':
main()
Edit: Found that the above code works with 2 arguments but crashes with 1. Tried to set len to 3 but that did nothing, still crashes (re-read the other answers and now understand why the 3 did nothing). How do I bypass the arguments if only one is entered? Or how would error checking look that returned "You must enter 2 arguments"?
Edit 2: Got it figured out:
import sys
def main():
if len(sys.argv) >= 2:
name = sys.argv[1] + " " + sys.argv[2]
else:
name = 'World'
print 'Hello', name
if __name__ == '__main__':
main()
This is a known bug with jQuery. The jQuery team has "no plans to support this in core and is better suited as a plugin." (See this comment). IE does not use the XMLHttpRequest, but an alternative object named XDomainRequest.
There is a plugin available to support this in jQuery, which can be found here: https://github.com/jaubourg/ajaxHooks/blob/master/src/xdr.js
EDIT
The function $.ajaxTransport
registers a transporter factory. A transporter is used internally by $.ajax
to perform requests. Therefore, I assume you should be able to call $.ajax
as usual. Information on transporters and extending $.ajax
can be found here.
Also, a perhaps better version of this plugin can be found here.
Two other notes:
Edit 2: http to https problem
Requests must be targeted to the same scheme as the hosting page
This restriction means that if your AJAX page is at http://example.com, then your target URL must also begin with HTTP. Similarly, if your AJAX page is at https://example.com, then your target URL must also begin with HTTPS.
See jQuery.scroll(). You can bind this to the window element to get your desired event hook.
On scroll, then simply check your scroll position:
$(window).scroll(function() {
var scrollTop = $(window).scrollTop();
if ( scrollTop > $(headerElem).offset().top ) {
// display add
}
});
Here is a simple directive that will scroll to an element on click:
myApp.directive('scrollOnClick', function() {
return {
restrict: 'A',
link: function(scope, $elm) {
$elm.on('click', function() {
$("body").animate({scrollTop: $elm.offset().top}, "slow");
});
}
}
});
Demo: http://plnkr.co/edit/yz1EHB8ad3C59N6PzdCD?p=preview
For help creating directives, check out the videos at http://egghead.io, starting at #10 "first directive".
edit: To make it scroll to a specific element specified by a href, just check attrs.href
.
myApp.directive('scrollOnClick', function() {
return {
restrict: 'A',
link: function(scope, $elm, attrs) {
var idToScroll = attrs.href;
$elm.on('click', function() {
var $target;
if (idToScroll) {
$target = $(idToScroll);
} else {
$target = $elm;
}
$("body").animate({scrollTop: $target.offset().top}, "slow");
});
}
}
});
Then you could use it like this: <div scroll-on-click></div>
to scroll to the element clicked. Or <a scroll-on-click href="#element-id"></div>
to scroll to element with the id.
Try adding all these headers in this code below Before every route, you define in your app, not after the routes
app.use((req, res, next) =>{
res.setHeader('Access-Control-Allow-Origin', '*');
res.setHeader('Access-Control-Allow-Headers','Origin, X-Requested-With, Content-Type,Accept, Authortization');
res.setHeader('Acces-Control-Allow-Methods','GET, POST, PATCH, DELETE');
The correct way to do this is:
String[] stockArr = stock_list.toArray(new String[stock_list.size()]);
I'd like to add to the other great answers here and explain how you could have used the Javadocs to answer your question.
The Javadoc for toArray()
(no arguments) is here. As you can see, this method returns an Object[]
and not String[]
which is an array of the runtime type of your list:
public Object[] toArray()
Returns an array containing all of the elements in this collection. If the collection makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order. The returned array will be "safe" in that no references to it are maintained by the collection. (In other words, this method must allocate a new array even if the collection is backed by an Array). The caller is thus free to modify the returned array.
Right below that method, though, is the Javadoc for toArray(T[] a)
. As you can see, this method returns a T[]
where T
is the type of the array you pass in. At first this seems like what you're looking for, but it's unclear exactly why you're passing in an array (are you adding to it, using it for just the type, etc). The documentation makes it clear that the purpose of the passed array is essentially to define the type of array to return (which is exactly your use case):
public <T> T[] toArray(T[] a)
Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array. If the collection fits in the specified array, it is returned therein. Otherwise, a new array is allocated with the runtime type of the specified array and the size of this collection. If the collection fits in the specified array with room to spare (i.e., the array has more elements than the collection), the element in the array immediately following the end of the collection is set to null. This is useful in determining the length of the collection only if the caller knows that the collection does not contain any null elements.)
If this collection makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order.
This implementation checks if the array is large enough to contain the collection; if not, it allocates a new array of the correct size and type (using reflection). Then, it iterates over the collection, storing each object reference in the next consecutive element of the array, starting with element 0. If the array is larger than the collection, a null is stored in the first location after the end of the collection.
Of course, an understanding of generics (as described in the other answers) is required to really understand the difference between these two methods. Nevertheless, if you first go to the Javadocs, you will usually find your answer and then see for yourself what else you need to learn (if you really do).
Also note that reading the Javadocs here helps you to understand what the structure of the array you pass in should be. Though it may not really practically matter, you should not pass in an empty array like this:
String [] stockArr = stockList.toArray(new String[0]);
Because, from the doc, this implementation checks if the array is large enough to contain the collection; if not, it allocates a new array of the correct size and type (using reflection). There's no need for the extra overhead in creating a new array when you could easily pass in the size.
As is usually the case, the Javadocs provide you with a wealth of information and direction.
Hey wait a minute, what's reflection?
Find the .PCH file inside the project. and then add #import "YourProjectName-Swift.h"
This will import the class headers. So that you don't have to import into specific file.
#ifndef __IPHONE_3_0
#warning "This project uses features only available in iPhone SDK 3.0 and later."
#endif
#ifdef __OBJC__
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#import "YourProjectName-Swift.h"
#endif
You can do this concisely using the toolbelt vg. It's a light layer on top of numpy and it supports single values and stacked vectors.
import numpy as np
import vg
x = np.array([1, 2, 3, 4, 5])
mag1 = np.linalg.norm(x)
mag2 = vg.magnitude(x)
print mag1 == mag2
# True
I created the library at my last startup, where it was motivated by uses like this: simple ideas which are far too verbose in NumPy.
if(isset($rule["type"]) && ($rule["type"] == "radio") || ($rule["type"] == "checkbox") )
{
if(!isset($data[$field]))
$data[$field]="";
}
I'd rather not turn an integer into a string, so here's the function I use for this:
def digitize(n, base=10):
if n == 0:
yield 0
while n:
n, d = divmod(n, base)
yield d
Examples:
tuple(digitize(123456789)) == (9, 8, 7, 6, 5, 4, 3, 2, 1)
tuple(digitize(0b1101110, 2)) == (0, 1, 1, 1, 0, 1, 1)
tuple(digitize(0x123456789ABCDEF, 16)) == (15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1)
As you can see, this will yield digits from right to left. If you'd like the digits from left to right, you'll need to create a sequence out of it, then reverse it:
reversed(tuple(digitize(x)))
You can also use this function for base conversion as you split the integer. The following example splits a hexadecimal number into binary nibbles as tuples:
import itertools as it
tuple(it.zip_longest(*[digitize(0x123456789ABCDEF, 2)]*4, fillvalue=0)) == ((1, 1, 1, 1), (0, 1, 1, 1), (1, 0, 1, 1), (0, 0, 1, 1), (1, 1, 0, 1), (0, 1, 0, 1), (1, 0, 0, 1), (0, 0, 0, 1), (1, 1, 1, 0), (0, 1, 1, 0), (1, 0, 1, 0), (0, 0, 1, 0), (1, 1, 0, 0), (0, 1, 0, 0), (1, 0, 0, 0))
Note that this method doesn't handle decimals, but could be adapted to.
you shoud do like this form your code
DataGridView.DataSource = yourlist;
DataGridView.DataBind();
You can add following algorithms to your list:
O(1)
- Determining if a number is even or odd; Working with HashMap
O(logN)
- computing x^N,
O(N Log N)
- Longest increasing subsequence
Google HTTP Java Client looks good to me because it can run on Android and App Engine as well.
By setting autocomplete
to off
should work here I have an example which is used by google in search page. I found this from inspect element.
edit:
In case off
isn't working then try false
or nofill
. In my case it is working with chrome version 48.0
There are two solutions posted on that page. The one with lower votes I would recommend if possible.
If you are using HTML5 then it is perfectly valid to put a div
inside of a
. As long as the div doesn't also contain some other specific elements like other link tags.
<a href="Music.html">
<div id="music" class="nav">
Music I Like
</div>
</a>
The solution you are confused about actually makes the link as big as its container div. To make it work in your example you just need to add position: relative
to your div. You also have a small syntax error which is that you have given the span a class instead of an id. You also need to put your span inside the link because that is what the user is clicking on. I don't think you need the z-index
at all from that example.
div { position: relative; }
.hyperspan {
position:absolute;
width:100%;
height:100%;
left:0;
top:0;
}
<div id="music" class="nav">Music I Like
<a href="http://www.google.com">
<span class="hyperspan"></span>
</a>
</div>
When you give absolute
positioning to an element it bases its location and size after the first parent it finds that is relatively positioned. If none, then it uses the document. By adding relative
to the parent div you tell the span to only be as big as that.
Probably one of the indexes is wrong, either the inner one or the outer one.
I suspect you mean to say [0]
where you say [1]
and [1]
where you say [2]
. Indexes are 0-based in Python.
You can do that by storing cookies on client side.
There are several ways to create a favicon. The best way for you depends on various factors:
If you want to get the job done well and quickly, you can use a favicon generator. This one creates the pictures and HTML code for all major desktop and mobiles browsers. Full disclosure: I'm the author of this site.
Advantages of such solution: it's quick and all compatibility considerations were already addressed for you.
As you suggest, you can create a favicon.ico
file which contains 16x16 and 32x32 pictures (note that Microsoft recommends 16x16, 32x32 and 48x48).
Then, declare it in your HTML code:
<link rel="shortcut icon" href="/path/to/icons/favicon.ico">
This method will work with all desktop browsers, old and new. But most mobile browsers will ignore the favicon.
About your suggestion of placing the favicon.ico
file in the root and not declaring it: beware, although this technique works on most browsers, it is not 100% reliable. For example Windows Safari cannot find it (granted: this browser is somehow deprecated on Windows, but you get the point). This technique is useful when combined with PNG icons (for modern browsers).
In your question, you do not mention the mobile browsers. Most of them will ignore the favicon.ico
file. Although your site may be dedicated to desktop browsers, chances are that you don't want to ignore mobile browsers altogether.
You can achieve a good compatibility with:
favicon.ico
, see above.Declare them with
<link rel="shortcut icon" href="/path/to/icons/favicon.ico">
<link rel="icon" type="image/png" href="/path/to/icons/favicon-192x192.png" sizes="192x192">
<link rel="apple-touch-icon" sizes="180x180" href="/path/to/icons/apple-touch-icon-180x180.png">
This is not the full story, but it's good enough in most cases.
You could use the NumberFormatter class with its parse
method.
VB is not a language. VB is a program that hosts VBA, just as Office hosts VBA. VB is a set of App objects, just like Word and Excel have, and a forms package, just like in Office.
So you can only write VBA code in VB.
PS this info is on the INFO tab on the VB question page for VB.
From VBA Info
VBA 6, was shipped in 1998 and includes a myriad of licensed hosts, among them: Office 2000 - 2010, AutoCAD, PI Processbook, and the stand-alone Visual Basic 6.0
function checkLectureStatus($lectureName) {
global $con;
$lectureName = mysql_real_escape_string($lectureName);
$sql = "SELECT 1 FROM preditors_assigned WHERE lecture_name='$lectureName'";
$result = mysql_query($sql) or trigger_error(mysql_error()." ".$sql);
if (mysql_fetch_row($result)) {
return 'Assigned';
}
return 'Available';
}
however you have to use some abstraction library for the database access.
the code would become
function checkLectureStatus($lectureName) {
$res = db::getOne("SELECT 1 FROM preditors_assigned WHERE lecture_name=?",$lectureName);
if($res) {
return 'Assigned';
}
return 'Available';
}
I had a similar issue with Intellij. The issue was that someone added the file that I am trying to compare in Intellij to .gitignore, without actually deleting the file from Git.
For me this happened because i merged a branch dev into master using web interface and then tried to sync/pull using VSCode which was open on dev branch.(its weird that i could not change to master without getting this error.)
git pull
Your configuration specifies to merge with the ref 'refs/heads/dev'
from the remote, but no such ref was fetched.'
It makes sense that is not finding it refs/heads/dev - for me it was easier to just delete the local folder and clone again.
Bar
is guaranteed not to change the object it is being invoked on. See the section about const correctness in the C++ FAQ, for example.
The sexiest version by far is with format strings.
from datetime import datetime
print(f'{datetime.today():%Y-%m-%d}')
If you want to refer to a global variable in a function, you can use the global keyword to declare which variables are global. You don't have to use it in all cases (as someone here incorrectly claims) - if the name referenced in an expression cannot be found in local scope or scopes in the functions in which this function is defined, it is looked up among global variables.
However, if you assign to a new variable not declared as global in the function, it is implicitly declared as local, and it can overshadow any existing global variable with the same name.
Also, global variables are useful, contrary to some OOP zealots who claim otherwise - especially for smaller scripts, where OOP is overkill.
If you don't have Python 2.6 or higher, the alternative is to write an explicit for loop:
def set_list_intersection(set_list):
if not set_list:
return set()
result = set_list[0]
for s in set_list[1:]:
result &= s
return result
set_list = [set([1, 2]), set([1, 3]), set([1, 4])]
print set_list_intersection(set_list)
# Output: set([1])
You can also use reduce
:
set_list = [set([1, 2]), set([1, 3]), set([1, 4])]
print reduce(lambda s1, s2: s1 & s2, set_list)
# Output: set([1])
However, many Python programmers dislike it, including Guido himself:
About 12 years ago, Python aquired lambda, reduce(), filter() and map(), courtesy of (I believe) a Lisp hacker who missed them and submitted working patches. But, despite of the PR value, I think these features should be cut from Python 3000.
So now reduce(). This is actually the one I've always hated most, because, apart from a few examples involving + or *, almost every time I see a reduce() call with a non-trivial function argument, I need to grab pen and paper to diagram what's actually being fed into that function before I understand what the reduce() is supposed to do. So in my mind, the applicability of reduce() is pretty much limited to associative operators, and in all other cases it's better to write out the accumulation loop explicitly.
You need both a value and a field to assign it to. The value is TableField + 1
, so the assignment is:
SET TableField = TableField + 1
Create the database, with Script Database as... CREATE To
Within SSMS on the source server, use the export wizard with the destination server database as the destination.
Use String.matches(), like:
String myString = "qwerty123456";
System.out.println(myString.matches("[A-Za-z0-9]+"));
That may not be the absolute "fastest" possible approach. But in general there's not much point in trying to compete with the people who write the language's "standard library" in terms of performance.
Similar to angry kiwi I got it to work using height rather than position:
html,body {
height: 100%;
overflow: hidden;
}
.the_element_that_you_want_to_have_scrolling{
-webkit-overflow-scrolling: touch;
}
In your_controller write this...
public function update_title()
{
$data = array
(
'table_id' => $this->input->post('table_id'),
'table_title' => $this->input->post('table_title')
);
$this->load->model('your_model'); // First load the model
if($this->your_model->update_title($data)) // call the method from the controller
{
// update successful...
}
else
{
// update not successful...
}
}
While in your_model...
public function update_title($data)
{
$this->db->set('table_title',$data['title'])
->where('table_id',$data['table_id'])
->update('your_table');
}
This will works fine...
I had this error too, but in my case the cause was using an outdated version of npm, v1.4.28.
Updating to npm v3 followed by
rm -rf node_modules
npm -i
worked for me. npm issue 2697 has details of the "maximally flat" folder structure included in npm v3 (released 2015-06-25).
I have learned it is also possible to do this with the exec-maven-plugin if you're doing a "standalone" java app.
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>${maven.exec.plugin.version}</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>${exec.main-class}</mainClass>
<systemProperties>
<systemProperty>
<key>myproperty</key>
<value>myvalue</value>
</systemProperty>
</systemProperties>
</configuration>
</plugin>
Probably a duplicate of this post: A customized input text box in html/html5
input {_x000D_
border: 0;_x000D_
outline: 0;_x000D_
background: transparent;_x000D_
border-bottom: 1px solid black;_x000D_
}
_x000D_
<input></input>
_x000D_
Just set display:none;
as an attribute in your stylesheet ;)
It's way better than loading pictures for nothing.
body::-webkit-scrollbar {
width: 9px;
height: 9px;
}
body::-webkit-scrollbar-button:start:decrement,
body::-webkit-scrollbar-button:end:increment {
display: block;
height: 0;
background-color: transparent;
}
body::-webkit-scrollbar-track-piece {
background-color: #ffffff;
opacity: 0.2;
/* Here */
display: none;
-webkit-border-radius: 0;
-webkit-border-bottom-right-radius: 14px;
-webkit-border-bottom-left-radius: 14px;
}
body::-webkit-scrollbar-thumb:vertical {
height: 50px;
background-color: #333333;
-webkit-border-radius: 8px;
}
Create hash as:
h = Hash.new
=> {}
Now insert into hash as:
h = Hash["one" => 1]
On your backEnd, you should add:
@RequestMapping(value="/blabla", produces="text/plain" , method = RequestMethod.GET)
On the frontEnd (Service):
methodBlabla()
{
const headers = new HttpHeaders().set('Content-Type', 'text/plain; charset=utf-8');
return this.http.get(this.url,{ headers, responseType: 'text'});
}
Windows Solution
Windows-Key + R
putty.exe -ssh [username]@[hostname] -pw [password]
When you use a const
string, the compiler embeds the string's value at compile-time.
Therefore, if you use a const
value in a different assembly, then update the original assembly and change the value, the other assembly won't see the change until you re-compile it.
A static readonly
string is a normal field that gets looked up at runtime. Therefore, if the field's value is changed in a different assembly, the changes will be seen as soon as the assembly is loaded, without recompiling.
This also means that a static readonly
string can use non-constant members, such as Environment.UserName
or DateTime.Now.ToString()
. A const
string can only be initialized using other constants or literals.
Also, a static readonly
string can be set in a static constructor; a const
string can only be initialized inline.
Note that a static string
can be modified; you should use static readonly
instead.
Use SelectTab
like this:
TabPage t = tabControl1.TabPages[2];
tabControl1.SelectTab(t); //go to tab
Use SelectedTab
like this:
TabPage t = tabControl1.TabPages[2];
tabControl1.SelectedTab = t; //go to tab
http://servername/sites/SiteCollection/SubSite/_vti_bin/Lists.asmx
ListsWebService
Here is the code.
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
namespace WebServicesConsoleApp
{
class Program
{
static void Main(string[] args)
{
try
{
ListsWebService.Lists listsWebSvc = new WebServicesConsoleApp.ListsWebService.Lists();
listsWebSvc.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;
listsWebSvc.Url = "http://servername/sites/SiteCollection/SubSite/_vti_bin/Lists.asmx";
XmlNode node = listsWebSvc.GetList("Issues");
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
}
}
http://servername/sites/SiteCollection/SubSite/_vti_bin/Lists.asmx
Change your app.config file from:
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
To:
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Ntlm"/>
</security>
Change your program.cs file and add the following code to your Main function:
ListsSoapClient client = new ListsSoapClient();
client.ClientCredentials.Windows.ClientCredential = System.Net.CredentialCache.DefaultNetworkCredentials;
client.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;
XmlElement listCollection = client.GetListCollection();
Add the using statements:
using [your app name].ServiceReference1;
using System.Xml;
Alternativly this option uses the native windows progress bar...
$FOF_CREATEPROGRESSDLG = "&H0&"
$objShell = New-Object -ComObject "Shell.Application"
$objFolder = $objShell.NameSpace($DestLocation)
$objFolder.CopyHere($srcFile, $FOF_CREATEPROGRESSDLG)
Try This:
$(document).on('click', '#btnClick', function(){ _x000D_
alert("button is clicked");_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<button id="btnClick">Click me</button>
_x000D_
Although this is an old question, I had the same question when using the Standard console version. The answer can be found in the Debian Live manual under the section 10.1 Customizing the live user. It says:
It is also possible to change the default username "user" and the default password "live".
I tried the username user
and password live
and it did work. If you want to run commands as root you can preface each command with sudo
For Persian culture
PersianCalendar pc = new PersianCalendar();
var today = pc.GetDayOfMonth(DateTime.Now);
var firstDayOfMonth = pc.GetDayOfMonth(DateTime.Now.AddDays(-(today-1)));
var lastDayOfMonth = pc.GetDayOfMonth(DateTime.Now.AddMonths(1).AddDays(-today));
Console.WriteLine("First day "+ firstDayOfMonth);
Console.WriteLine("Last day " + lastDayOfMonth);
I needed to convert a single column of strings of form nn.n% to float. I needed to remove the % from the element in each row. The attend data frame has two columns.
attend.iloc[:,1:2]=attend.iloc[:,1:2].applymap(lambda x: float(x[:-1]))
Its an extenstion to the original answer. In my case it takes a dataframe and applies a function to each value in a specific column. The function removes the last character and converts the remaining string to float.
Basic Example
folder = async () => {
let fold = await getFold();
//await localStorage.save('folder');
return fold;
};
I'm working with Angular2 and SCSS, as a best practice I copied to my project only the bootstrap files that I'm modifying the other are imported from node_modules.. the only problem was with Glyphicons. After many tries I found that the best solution to me is to copy the font files to my project and set directly this path to $ icon-font-path as shown in the image:
If you are using select with angular 1, then you need to use ng-init, otherwise, second option will not be selected since, ng-model overrides the defaul selected value
<select ng-model="sortVar" ng-init='sortVar="stargazers_count"'>
<option value="name">Name</option>
<option selected="selected" value="stargazers_count">Stars</option>
<option value="language">Language</option>
</select>
You can use library l2i
(https://github.com/seriyvolk83/logs2indexeddb) to save all you put into console.log
and then invoke
l2i.download();
to download a file with logs.
Perhaps you can use a try ... finally block to finalize the object in the control flow at which you are using the object. Of course it doesn't happen automatically, but neither does destruction in C++. You often see closing of resources in the finally block.
Ok I know this a bit of a hack but this is a way to use a variable in a simple query, not a script:
WITH
emplVar AS
(SELECT 1234 AS id FROM dual)
SELECT
*
FROM
employees,
emplVar
WHERE
EmployId=emplVar.id;
You get to run it everywhere.
In my case, you need to convert the column(you think this column is numeric, but actually not) to numeric
geom_segment(data=tmpp,
aes(x=start_pos,
y=lib.complexity,
xend=end_pos,
yend=lib.complexity)
)
# to
geom_segment(data=tmpp,
aes(x=as.numeric(start_pos),
y=as.numeric(lib.complexity),
xend=as.numeric(end_pos),
yend=as.numeric(lib.complexity))
)
wmode=opaque or transparent at the beginning of my query string didnt solve anything. This issue for me only occurs on Chrome, and not across even all computers. Just one cpu. It occurs in vimeo embeds as well, and possibly others.
My solution to to attach to the 'shown' and 'hidden' event of the bootstrap modals I am using, add a class which sets the iframe to 1x1 pixels, and remove the class when the modal closes. Seems like it works and is simple to implement.
According to the Swift 2.2 Book published by apple:
“You indicate type methods by writing the static
keyword before the method’s func keyword. Classes may also use the class
keyword to allow subclasses to override the superclass’s implementation of that method.”
select max(Salary) from Employee
where Salary
not in (Select top4 salary from Employee);
because answer is as follows
max(5,6,7,8)
so 5th highest record will be displayed, first four will not be considered
Do you mean like this?
import string
astr='a(b[c])d'
deleter=string.maketrans('()[]',' ')
print(astr.translate(deleter))
# a b c d
print(astr.translate(deleter).split())
# ['a', 'b', 'c', 'd']
print(list(reversed(astr.translate(deleter).split())))
# ['d', 'c', 'b', 'a']
print(' '.join(reversed(astr.translate(deleter).split())))
# d c b a
Shorter version:
dependencies {
implementation fileTree('lib')
}
bmjohns -> You are my life saviour. That is the only working solution (With the AppUtility struct)
I've created this class:
class Helper{
struct AppUtility {
static func lockOrientation(_ orientation: UIInterfaceOrientationMask) {
if let delegate = UIApplication.shared.delegate as? AppDelegate {
delegate.orientationLock = orientation
}
}
/// OPTIONAL Added method to adjust lock and rotate to the desired orientation
static func lockOrientation(_ orientation: UIInterfaceOrientationMask, andRotateTo rotateOrientation:UIInterfaceOrientation) {
self.lockOrientation(orientation)
UIDevice.current.setValue(rotateOrientation.rawValue, forKey: "orientation")
}
}
}
and followed your instructions, and everything works perfectly for Swift 3 -> xcode version 8.2.1
Without a doubt, the simplest method uses an invisible FORM element in HTML specifying the desired REST method. Then the arguments can be inserted into input type=hidden
value fields using JavaScript and the form can be submitted from the button click event listener or onclick event using one line of JavaScript. Here is an example that assumes the REST API is in file REST.php:
<body>
<h2>REST-test</h2>
<input type=button onclick="document.getElementById('a').submit();"
value="Do It">
<form id=a action="REST.php" method=post>
<input type=hidden name="arg" value="val">
</form>
</body>
Note that this example will replace the page with the output from page REST.php. I'm not sure how to modify this if you wish the API to be called with no visible effect on the current page. But it's certainly simple.