String sql = "SELECT CURRENT_TIMESTAMP ;
…
OffsetDateTime odt = myResultSet.getObject( 1 , OffsetDateTime.class ) ;
I recommend you write all your code to explicitly state the desired/expected time zone. You need not depend on the JVM’s current default time zone. And be aware that the JVM’s current default time zone can change at any moment during runtime, with any code in any thread of any app calling TimeZone.setDefault
. Such a call affects all apps within that JVM immediately.
Some of the other Answers were correct, but are now outmoded. The terrible date-time classes bundled with the earliest versions of Java were flawed, written by people who did not understand the complexities and subtleties of date-time handling.
The legacy date-time classes have been supplanted by the java.time classes defined in JSR 310.
To represent a time zone, use ZoneId
. To represent an offset-from-UTC, use ZoneOffset
. An offset is merely a number of hour-minutes-seconds ahead or behind the prime meridian. A time zone is much more. A time zone is a history of the past, present, and future changes to the offset used by the people of a particular region.
I need to force any time related operations to GMT/UTC
For an offset of zero hours-minutes-seconds, use the constant ZoneOffset.UTC
.
Instant
To capture the current moment in UTC, use an Instant
. This class represent a moment in UTC, always in UTC by definition.
Instant instant = Instant.now() ; // Capture current moment in UTC.
ZonedDateTime
To see that same moment through the wall-clock time used by the people of a particular region, adjust into a time zone. Same moment, same point on the timeline, different wall-clock time.
ZoneId z = ZoneId.of( "Asia/Tokyo" ) ;
ZonedDateTime zdt = instant.atZone( z ) ;
You mention a database.
To retrieve a moment from the database, your column should be of a data type akin to the SQL-standard TIMESTAMP WITH TIME ZONE
. Retrieve an object rather than a string. In JDBC 4.2 and later, we can exchange java.time objects with the database. The OffsetDateTime
is required by JDBC, while Instant
& ZonedDateTime
are optional.
OffsetDateTime odt = myResultSet.getObject( … , OffsetDateTime.class ) ;
In most databases and drivers, I would guess that you will get the moment as seen in UTC. But if not, you can adjust in either of two ways:
Instant
: odt.toInstant()
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.*
classes.
Where to obtain the java.time classes?
This is an important and surprisingly tough issue. The truth is that there is no completely satisfying standard for persisting time. For example, the SQL standard and the ISO format (ISO 8601) are clearly not enough.
From the conceptual point of view, one usually deals with two types of time-date data, and it's convenient to distinguish them (the above standards do not) : "physical time" and "civil time".
A "physical" instant of time is a point in the continuous universal timeline that physics deal with (ignoring relativity, of course). This concept can be adequately coded-persisted in UTC, for example (if you can ignore leap seconds).
A "civil" time is a datetime specification that follows civil norms: a point of time here is fully specified by a set of datetime fields (Y,M,D,H,MM,S,FS) plus a TZ (timezone specification) (also a "calendar", actually; but lets assume we restrict the discussion to Gregorian calendar). A timezone and a calendar jointly allow (in principle) to map from one representation to another. But civil and physical time instants are fundamentally different types of magnitudes, and they should be kept conceptually separated and treated differently (an analogy: arrays of bytes and character strings).
The issue is confusing because we speak of these types events interchangeably, and because the civil times are subject to political changes. The problem (and the need to distinguish these concepts) becomes more evident for events in the future. Example (taken from my discussion here.
John records in his calendar a reminder for some event at datetime
2019-Jul-27, 10:30:00
, TZ=Chile/Santiago
, (which has offset GMT-4,
hence it corresponds to UTC 2019-Jul-27 14:30:00
). But some day
in the future, the country decides to change the TZ offset to GMT-5.
Now, when the day comes... should that reminder trigger at
A) 2019-Jul-27 10:30:00 Chile/Santiago
= UTC time 2019-Jul-27 15:30:00
?
or
B) 2019-Jul-27 9:30:00 Chile/Santiago
= UTC time 2019-Jul-27 14:30:00
?
There is no correct answer, unless one knows what John conceptually meant
when he told the calendar "Please ring me at 2019-Jul-27, 10:30:00
TZ=Chile/Santiago
".
Did he mean a "civil date-time" ("when the clocks in my city tell 10:30")? In that case, A) is the correct answer.
Or did he mean a "physical instant of time", a point in the continuus line of time of our universe, say, "when the next solar eclipse happens". In that case, answer B) is the correct one.
A few Date/Time APIs get this distinction right: among them, Jodatime, which is the foundation of the next (third!) Java DateTime API (JSR 310).
I would do it with the following code which is similar to the accepted answer (I'm aware the code could be refactored :) ):
$list = DateTimeZone::listAbbreviations();
$idents = DateTimeZone::listIdentifiers();
$data = $offset = $added = array();
foreach ($list as $abbr => $info) {
foreach ($info as $zone) {
if ( ! empty($zone['timezone_id'])
AND
! in_array($zone['timezone_id'], $added)
AND
in_array($zone['timezone_id'], $idents)) {
$z = new DateTimeZone($zone['timezone_id']);
$c = new DateTime(null, $z);
$zone['time'] = $c->format('H:i a');
$offset[] = $zone['offset'] = $z->getOffset($c);
$data[] = $zone;
$added[] = $zone['timezone_id'];
}
}
}
array_multisort($offset, SORT_ASC, $data);
$options = array();
foreach ($data as $key => $row) {
$options[$row['timezone_id']] = $row['time'] . ' - '
. formatOffset($row['offset'])
. ' ' . $row['timezone_id'];
}
// now you can use $options;
function formatOffset($offset) {
$hours = $offset / 3600;
$remainder = $offset % 3600;
$sign = $hours > 0 ? '+' : '-';
$hour = (int) abs($hours);
$minutes = (int) abs($remainder / 60);
if ($hour == 0 AND $minutes == 0) {
$sign = ' ';
}
return 'GMT' . $sign . str_pad($hour, 2, '0', STR_PAD_LEFT)
.':'. str_pad($minutes,2, '0');
}
It produces something like:
<option value="America/Boise" label="02:10 am - GMT-06:00 America/Boise">02:10 am - GMT-06:00 America/Boise</option>
<option value="America/Denver" label="02:10 am - GMT-06:00 America/Denver">02:10 am - GMT-06:00 America/Denver</option>
<option value="America/Edmonton" label="02:10 am - GMT-06:00 America/Edmonton">02:10 am - GMT-06:00 America/Edmonton</option>
<option value="America/Inuvik" label="02:10 am - GMT-06:00 America/Inuvik">02:10 am - GMT-06:00 America/Inuvik</option>
<option value="America/Shiprock" label="02:10 am - GMT-06:00 America/Shiprock">02:10 am - GMT-06:00 America/Shiprock</option>
<option value="America/Belize" label="02:10 am - GMT-05:00 America/Belize">02:10 am - GMT-05:00 America/Belize</option>
Hope that helps a bit and/or inspire you to come with something better.
Please modify your index.php as follows:
require_once($yii);
$app = Yii::createWebApplication($config);
Yii::app()->setTimeZone('UTC');
$app->run();
public static float calculateTimeZone(String deviceTimeZone) {
float ONE_HOUR_MILLIS = 60 * 60 * 1000;
// Current timezone and date
TimeZone timeZone = TimeZone.getTimeZone(deviceTimeZone);
Date nowDate = new Date();
float offsetFromUtc = timeZone.getOffset(nowDate.getTime()) / ONE_HOUR_MILLIS;
// Daylight Saving time
if (timeZone.useDaylightTime()) {
// DST is used
// I'm saving this is preferences for later use
// save the offset value to use it later
float dstOffset = timeZone.getDSTSavings() / ONE_HOUR_MILLIS;
// DstOffsetValue = dstOffset
// I'm saving this is preferences for later use
// save that now we are in DST mode
if (timeZone.inDaylightTime(nowDate)) {
Log.e(Utility.class.getName(), "in Daylight Time");
return -(ONE_HOUR_MILLIS * dstOffset);
} else {
Log.e(Utility.class.getName(), "not in Daylight Time");
return 0;
}
} else
return 0;
}
Set the default time zone first and get the date then, the date will be in the time zone you specify :
<?php
date_default_timezone_set('America/New_York');
$date= date('m-d-Y') ;
?>
http://php.net/manual/en/function.date-default-timezone-set.php
With Spring Boot JPA, use the below code in your application.properties file and obviously you can modify timezone to your choice
spring.jpa.properties.hibernate.jdbc.time_zone = UTC
Then in your Entity class file,
@Column
private LocalDateTime created;
public static String getCurrentTimezoneOffset() {
TimeZone tz = TimeZone.getDefault();
Calendar cal = GregorianCalendar.getInstance(tz);
int offsetInMillis = tz.getOffset(cal.getTimeInMillis());
String offset = String.format("%02d:%02d", Math.abs(offsetInMillis / 3600000), Math.abs((offsetInMillis / 60000) % 60));
offset = (offsetInMillis >= 0 ? "+" : "-") + offset;
return offset;
}
Here I am sharing the script, convert UTC timestamp to Indian timestamp:-
// create a $utc object with the UTC timezone
$IST = new DateTime('2016-12-12 12:12:12', new DateTimeZone('UTC'));
// change the timezone of the object without changing it's time
$IST->setTimezone(new DateTimeZone('Asia/Kolkata'));
// format the datetime
echo $IST->format('Y-m-d H:i:s T');
You can Try this ,
Here you can get the date based on the Client Timezone (Browser).
moment(new Date().getTime()).zone(new Date().toString().match(/([-\+][0-9]+)\s/)[1]).format('YYYY-MM-DD HH:mm:ss')
The regex basically gets you the offset value.
Cheers!!
You said:
I want them to always come out as Tanzanian time and not in the local times that various collaborator are in.
If this is the case, then you should not use UTC. All you need to do is to use a DATETIME
type in MySQL instead of a TIMESTAMP
type.
MySQL converts
TIMESTAMP
values from the current time zone to UTC for storage, and back from UTC to the current time zone for retrieval. (This does not occur for other types such asDATETIME
.)
If you are already using a DATETIME
type, then you must be not setting it by the local time to begin with. You'll need to focus less on the database, and more on your application code - which you didn't show here. The problem, and the solution, will vary drastically depending on language, so be sure to tag the question with the appropriate language of your application code.
Ran into this exact problem.
What I ended up doing:
# starting with date string
sdt = "20190901"
std_format = '%Y%m%d'
# create naive datetime object
from datetime import datetime
dt = datetime.strptime(sdt, sdt_format)
# extract the relevant date time items
dt_formatters = ['%Y','%m','%d']
dt_vals = tuple(map(lambda formatter: int(datetime.strftime(dt,formatter)), dt_formatters))
# set timezone
import pendulum
tz = pendulum.timezone('utc')
dt_tz = datetime(*dt_vals,tzinfo=tz)
We can easily get the millisecond offset of a TimeZone
with only a TimeZone
instance and System.currentTimeMillis()
. Then we can convert from milliseconds to any time unit of choice using the TimeUnit
class.
Like so:
public static int getOffsetHours(TimeZone timeZone) {
return (int) TimeUnit.MILLISECONDS.toHours(timeZone.getOffset(System.currentTimeMillis()));
}
Or if you prefer the new Java 8 time API
public static ZoneOffset getOffset(TimeZone timeZone) { //for using ZoneOffsett class
ZoneId zi = timeZone.toZoneId();
ZoneRules zr = zi.getRules();
return zr.getOffset(LocalDateTime.now());
}
public static int getOffsetHours(TimeZone timeZone) { //just hour offset
ZoneOffset zo = getOffset(timeZone);
TimeUnit.SECONDS.toHours(zo.getTotalSeconds());
}
If you don't have access to the file php.ini
, create or edit a .htaccess
file in the root of your domain or sub and add this (generated by cpanel):
<IfModule mime_module>
AddType application/x-httpd-ea-php56 .php .php5 .phtml
</IfModule>
<IfModule php5_module>
php_value date.timezone "America/New_York"
</IfModule>
<IfModule lsapi_module>
php_value date.timezone "America/New_York"
</IfModule>
In Ruby on Rails 6.0.1 go to config > locales > application.rb y agrega lo siguiente:
require_relative 'boot'
require 'rails/all'
# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)
module CrudRubyOnRails6
class Application < Rails::Application
# Initialize configuration defaults for originally generated Rails version.
config.load_defaults 6.0
config.active_record.default_timezone = :local
config.time_zone = 'Lima'
# Settings in config/environments/* take precedence over those specified here.
# Application configuration can go into files in config/initializers
# -- all .rb files in that directory are automatically loaded after loading
# the framework and any gems in your application.
end
end
You can see that I am configuring the time zone with 2 lines:
config.active_record.default_timezone =: local
config.time_zone = 'Lima'
I hope it helps those who are working with Ruby on Rails 6.0.1
The command mention in the description returns "SYSTEM" which indicated it takes the timezone of the server. Which is not useful for our query.
Following query will help to understand the timezone
SELECT TIMEDIFF(NOW(), UTC_TIMESTAMP) as GMT_TIME_DIFF;
Above query will give you the time interval with respect to Coordinated Universal Time(UTC). So you can easily analyze the timezone. if the database time zone is IST the output will be 5:30
UTC_TIMESTAMP
In MySQL, the UTC_TIMESTAMP returns the current UTC date and time as a value in 'YYYY-MM-DD HH:MM:SS' or YYYYMMDDHHMMSS.uuuuuu format depending on the usage of the function i.e. in a string or numeric context.
NOW()
NOW() function. MySQL NOW() returns the value of current date and time in 'YYYY-MM-DD HH:MM:SS' format or YYYYMMDDHHMMSS.uuuuuu format depending on the context (numeric or string) of the function. CURRENT_TIMESTAMP, CURRENT_TIMESTAMP(), LOCALTIME, LOCALTIME(), LOCALTIMESTAMP, LOCALTIMESTAMP() are synonyms of NOW().
U can just add, timezone difference to unix timestamp. Example for Moscow (UTC+3)
echo date('d.m.Y H:i:s', time() + 3 * 60 * 60);
You can achieve this with a few simple extension methods. The following Date extension method returns just the timezone component in ISO format, then you can define another for the date/time part and combine them for a complete date-time-offset string.
Date.prototype.getISOTimezoneOffset = function () {
const offset = this.getTimezoneOffset();
return (offset < 0 ? "+" : "-") + Math.floor(Math.abs(offset / 60)).leftPad(2) + ":" + (Math.abs(offset % 60)).leftPad(2);
}
Date.prototype.toISOLocaleString = function () {
return this.getFullYear() + "-" + (this.getMonth() + 1).leftPad(2) + "-" +
this.getDate().leftPad(2) + "T" + this.getHours().leftPad(2) + ":" +
this.getMinutes().leftPad(2) + ":" + this.getSeconds().leftPad(2) + "." +
this.getMilliseconds().leftPad(3);
}
Number.prototype.leftPad = function (size) {
var s = String(this);
while (s.length < (size || 2)) {
s = "0" + s;
}
return s;
}
Example usage:
var date = new Date();
console.log(date.toISOLocaleString() + date.getISOTimezoneOffset());
// Prints "2020-08-05T16:15:46.525+10:00"
I know it's 2020 and most people are probably using Moment.js by now, but a simple copy & pastable solution is still sometimes handy to have.
(The reason I split the date/time and offset methods is because I'm using an old Datejs library which already provides a flexible toString
method with custom format specifiers, but just doesn't include the timezone offset. Hence, I added toISOLocaleString
for anyone without said library.)
This question is pretty old, so moment.js didn't exist at that time, but for new projects, it simplifies tasks like this a lot.
It's best to parse your date string from UTC as follows (create an ISO-8601 compatible string on the server to get consistent results across all browsers):
var m = moment("2013-02-08T09:30:26Z");
Now just use m
in your application, moment.js defaults to the local timezone for display operations. There are many ways to format the date and time values or extract portions of it.
You can even format a moment object in the users locale like this:
m.format('LLL') // Returns "February 8 2013 8:30 AM" on en-us
To transform a moment.js object into a different timezone (i.e. neither the local one nor UTC), you'll need the moment.js timezone extension. That page has also some examples, it's pretty simple to use.
Think your should look around: datetime.astimezone()
http://docs.python.org/library/datetime.html#datetime.datetime.astimezone
Also see pytz module - it's quite easy to use -- as example:
eastern = timezone('US/Eastern')
Example:
from datetime import datetime
import pytz
from tzlocal import get_localzone # $ pip install tzlocal
utc_dt = datetime(2009, 7, 10, 18, 44, 59, 193982, tzinfo=pytz.utc)
print(utc_dt.astimezone(get_localzone())) # print local time
# -> 2009-07-10 14:44:59.193982-04:00
Because I always struggle to remember, a quick summary of what each of these do:
>>> pd.Timestamp.now() # naive local time
Timestamp('2019-10-07 10:30:19.428748')
>>> pd.Timestamp.utcnow() # tz aware UTC
Timestamp('2019-10-07 08:30:19.428748+0000', tz='UTC')
>>> pd.Timestamp.now(tz='Europe/Brussels') # tz aware local time
Timestamp('2019-10-07 10:30:19.428748+0200', tz='Europe/Brussels')
>>> pd.Timestamp.now(tz='Europe/Brussels').tz_localize(None) # naive local time
Timestamp('2019-10-07 10:30:19.428748')
>>> pd.Timestamp.now(tz='Europe/Brussels').tz_convert(None) # naive UTC
Timestamp('2019-10-07 08:30:19.428748')
>>> pd.Timestamp.utcnow().tz_localize(None) # naive UTC
Timestamp('2019-10-07 08:30:19.428748')
>>> pd.Timestamp.utcnow().tz_convert(None) # naive UTC
Timestamp('2019-10-07 08:30:19.428748')
The .getTimezoneOffset()
method should work. This will get the time between your time zone and GMT. You can then calculate to whatever you want.
Timestamptz vs Timestamp
The timestamptz field in Postgres is basically just the timestamp field where Postgres actually just stores the “normalised” UTC time, even if the timestamp given in the input string has a timezone.
If your input string is: 2018-08-28T12:30:00+05:30 , when this timestamp is stored in the database, it will be stored as 2018-08-28T07:00:00.
The advantage of this over the simple timestamp field is that your input to the database will be timezone independent, and will not be inaccurate when apps from different timezones insert timestamps, or when you move your database server location to a different timezone.
To quote from the docs:
For timestamp with time zone, the internally stored value is always in UTC (Universal Coordinated Time, traditionally known as Greenwich Mean Time, GMT). An input value that has an explicit time zone specified is converted to UTC using the appropriate offset for that time zone. If no time zone is stated in the input string, then it is assumed to be in the time zone indicated by the system’s TimeZone parameter, and is converted to UTC using the offset for the timezone zone. To give a simple analogy, a timestamptz value represents an instant in time, the same instant for anyone viewing it. But a timestamp value just represents a particular orientation of a clock, which will represent different instances of time based on your timezone.
For pretty much any use case, timestamptz is almost always a better choice. This choice is made easier with the fact that both timestamptz and timestamp take up the same 8 bytes of data.
source: https://hasura.io/blog/postgres-date-time-data-types-on-graphql-fd926e86ee87/
To remove a timezone (tzinfo) from a datetime object:
# dt_tz is a datetime.datetime object
dt = dt_tz.replace(tzinfo=None)
If you are using a library like arrow, then you can remove timezone by simply converting an arrow object to to a datetime object, then doing the same thing as the example above.
# <Arrow [2014-10-09T10:56:09.347444-07:00]>
arrowObj = arrow.get('2014-10-09T10:56:09.347444-07:00')
# datetime.datetime(2014, 10, 9, 10, 56, 9, 347444, tzinfo=tzoffset(None, -25200))
tmpDatetime = arrowObj.datetime
# datetime.datetime(2014, 10, 9, 10, 56, 9, 347444)
tmpDatetime = tmpDatetime.replace(tzinfo=None)
Why would you do this? One example is that mysql does not support timezones with its DATETIME type. So using ORM's like sqlalchemy will simply remove the timezone when you give it a datetime.datetime
object to insert into the database. The solution is to convert your datetime.datetime
object to UTC (so everything in your database is UTC since it can't specify timezone) then either insert it into the database (where the timezone is removed anyway) or remove it yourself. Also note that you cannot compare datetime.datetime
objects where one is timezone aware and another is timezone naive.
##############################################################################
# MySQL example! where MySQL doesn't support timezones with its DATETIME type!
##############################################################################
arrowObj = arrow.get('2014-10-09T10:56:09.347444-07:00')
arrowDt = arrowObj.to("utc").datetime
# inserts datetime.datetime(2014, 10, 9, 17, 56, 9, 347444, tzinfo=tzutc())
insertIntoMysqlDatabase(arrowDt)
# returns datetime.datetime(2014, 10, 9, 17, 56, 9, 347444)
dbDatetimeNoTz = getFromMysqlDatabase()
# cannot compare timzeone aware and timezone naive
dbDatetimeNoTz == arrowDt # False, or TypeError on python versions before 3.3
# compare datetimes that are both aware or both naive work however
dbDatetimeNoTz == arrowDt.replace(tzinfo=None) # True
JonSkeet has a good answer but as an alternative if you wanted to keep the result more portable you could convert the date into an ISO 8601 format which could then be read into most other frameworks but this may fall outside your requirements.
value.ToUniversalTime().ToString("O");
Time#localtime
will give you the time in the current time zone of the machine running the code:
> moment = Time.now.utc
=> 2011-03-14 15:15:58 UTC
> moment.localtime
=> 2011-03-14 08:15:58 -0700
Update: If you want to conver to specific time zones rather than your own timezone, you're on the right track. However, instead of worrying about EST vs EDT, just pass in the general Eastern Time zone -- it will know based on the day whether it is EDT or EST:
> Time.now.utc.in_time_zone("Eastern Time (US & Canada)")
=> Mon, 14 Mar 2011 11:21:05 EDT -04:00
> (Time.now.utc + 10.months).in_time_zone("Eastern Time (US & Canada)")
=> Sat, 14 Jan 2012 10:21:18 EST -05:00
DateTime does not know its timezone offset. There is no built-in method to return the offset or the timezone name (e.g. EAT, CEST, EST etc).
Like suggested by others, you can convert your date to UTC:
DateTime localtime = new DateTime.Now;
var utctime = localtime.ToUniversalTime();
and then only calculate the difference:
TimeSpan difference = localtime - utctime;
Also you may convert one time to another by using the DateTimeOffset:
DateTimeOffset targetTime = DateTimeOffset.Now.ToOffset(new TimeSpan(5, 30, 0));
But this is sort of lossy compression - the offset alone cannot tell you which time zone it is as two different countries may be in different time zones and have the same time only for part of the year (eg. South Africa and Europe). Also, be aware that summer daylight saving time may be introduced at different dates (EST vs CET - a 3-week difference).
You can get the name of your local system time zone using TimeZoneInfo class:
TimeZoneInfo localZone = TimeZoneInfo.Local;
localZone.IsDaylightSavingTime(localtime) ? localZone.DaylightName : localZone.StandardName
I agree with Gerrie Schenck, please read the article he suggested.
You just to to include moment.js and jstz.js
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jstimezonedetect/1.0.6/jstz.min.js"></script>
and after that
<script>
$(function(){
var currentTimezone = jstz.determine();
var timezone = currentTimezone.name();
alert(timezone);
});
</script>
i suggest you use moment.js
for this. In moment.js you can:
var localTime = moment().format('YYYY-MM-DD'); // store localTime
var proposedDate = localTime + "T00:00:00.000Z";
now that you have the right format for a time, parse it if it's valid:
var isValidDate = moment(proposedDate).isValid();
// returns true if valid and false if it is not.
and to get time parts you can do something like:
var momentDate = moment(proposedDate)
var hour = momentDate.hours();
var minutes = momentDate.minutes();
var seconds = momentDate.seconds();
// or you can use `.format`:
console.log(momentDate.format("YYYY-MM-DD hh:mm:ss A Z"));
More info about momentjs http://momentjs.com/
To find duration or time interval with two different time zone
import org.joda.time.{DateTime, Period, PeriodType}
val s1 = "2019-06-13T05:50:00-07:00"
val s2 = "2019-10-09T11:30:00+09:00"
val period = new Period(DateTime.parse(s1), DateTime.parse(s2), PeriodType dayTime())
period.getDays
period.getMinutes
period.getHours
output period = P117DT13H40M
days = 117
minutes = 40
hours = 13
Try this code for use Google Time Zone API from Java with current NTP Time Client and correct UTC_Datetime_from_timestamp convert:
String get_xml_server_reponse(String server_url){
URL xml_server = null;
String xmltext = "";
InputStream input;
try {
xml_server = new URL(server_url);
try {
input = xml_server.openConnection().getInputStream();
final BufferedReader reader = new BufferedReader(new InputStreamReader(input));
final StringBuilder sBuf = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null)
{
sBuf.append(line);
}
}
catch (IOException e)
{
Log.e(e.getMessage(), "XML parser, stream2string 1");
}
finally {
try {
input.close();
}
catch (IOException e)
{
Log.e(e.getMessage(), "XML parser, stream2string 2");
}
}
xmltext = sBuf.toString();
} catch (IOException e1) {
e1.printStackTrace();
}
} catch (MalformedURLException e1) {
e1.printStackTrace();
}
return xmltext;
}
private String get_UTC_Datetime_from_timestamp(long timeStamp){
try{
Calendar cal = Calendar.getInstance();
TimeZone tz = cal.getTimeZone();
int tzt = tz.getOffset(System.currentTimeMillis());
timeStamp -= tzt;
// DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss",Locale.getDefault());
DateFormat sdf = new SimpleDateFormat();
Date netDate = (new Date(timeStamp));
return sdf.format(netDate);
}
catch(Exception ex){
return "";
}
}
class NTP_UTC_Time
{
private static final String TAG = "SntpClient";
private static final int RECEIVE_TIME_OFFSET = 32;
private static final int TRANSMIT_TIME_OFFSET = 40;
private static final int NTP_PACKET_SIZE = 48;
private static final int NTP_PORT = 123;
private static final int NTP_MODE_CLIENT = 3;
private static final int NTP_VERSION = 3;
// Number of seconds between Jan 1, 1900 and Jan 1, 1970
// 70 years plus 17 leap days
private static final long OFFSET_1900_TO_1970 = ((365L * 70L) + 17L) * 24L * 60L * 60L;
private long mNtpTime;
public boolean requestTime(String host, int timeout) {
try {
DatagramSocket socket = new DatagramSocket();
socket.setSoTimeout(timeout);
InetAddress address = InetAddress.getByName(host);
byte[] buffer = new byte[NTP_PACKET_SIZE];
DatagramPacket request = new DatagramPacket(buffer, buffer.length, address, NTP_PORT);
buffer[0] = NTP_MODE_CLIENT | (NTP_VERSION << 3);
writeTimeStamp(buffer, TRANSMIT_TIME_OFFSET);
socket.send(request);
// read the response
DatagramPacket response = new DatagramPacket(buffer, buffer.length);
socket.receive(response);
socket.close();
mNtpTime = readTimeStamp(buffer, RECEIVE_TIME_OFFSET);
} catch (Exception e) {
// if (Config.LOGD) Log.d(TAG, "request time failed: " + e);
return false;
}
return true;
}
public long getNtpTime() {
return mNtpTime;
}
/**
* Reads an unsigned 32 bit big endian number from the given offset in the buffer.
*/
private long read32(byte[] buffer, int offset) {
byte b0 = buffer[offset];
byte b1 = buffer[offset+1];
byte b2 = buffer[offset+2];
byte b3 = buffer[offset+3];
// convert signed bytes to unsigned values
int i0 = ((b0 & 0x80) == 0x80 ? (b0 & 0x7F) + 0x80 : b0);
int i1 = ((b1 & 0x80) == 0x80 ? (b1 & 0x7F) + 0x80 : b1);
int i2 = ((b2 & 0x80) == 0x80 ? (b2 & 0x7F) + 0x80 : b2);
int i3 = ((b3 & 0x80) == 0x80 ? (b3 & 0x7F) + 0x80 : b3);
return ((long)i0 << 24) + ((long)i1 << 16) + ((long)i2 << 8) + (long)i3;
}
/**
* Reads the NTP time stamp at the given offset in the buffer and returns
* it as a system time (milliseconds since January 1, 1970).
*/
private long readTimeStamp(byte[] buffer, int offset) {
long seconds = read32(buffer, offset);
long fraction = read32(buffer, offset + 4);
return ((seconds - OFFSET_1900_TO_1970) * 1000) + ((fraction * 1000L) / 0x100000000L);
}
/**
* Writes 0 as NTP starttime stamp in the buffer. --> Then NTP returns Time OFFSET since 1900
*/
private void writeTimeStamp(byte[] buffer, int offset) {
int ofs = offset++;
for (int i=ofs;i<(ofs+8);i++)
buffer[i] = (byte)(0);
}
}
String get_time_zone_time(GeoPoint gp){
String erg = "";
String raw_offset = "";
String dst_offset = "";
double Longitude = gp.getLongitudeE6()/1E6;
double Latitude = gp.getLatitudeE6()/1E6;
long tsLong = 0; // System.currentTimeMillis()/1000;
NTP_UTC_Time client = new NTP_UTC_Time();
if (client.requestTime("pool.ntp.org", 2000)) {
tsLong = client.getNtpTime();
}
if (tsLong != 0)
{
tsLong = tsLong / 1000;
// https://maps.googleapis.com/maps/api/timezone/xml?location=39.6034810,-119.6822510×tamp=1331161200&sensor=false
String request = "https://maps.googleapis.com/maps/api/timezone/xml?location="+Latitude+","+ Longitude+ "×tamp="+tsLong +"&sensor=false";
String xmltext = get_xml_server_reponse(request);
if(xmltext.compareTo("")!= 0)
{
int startpos = xmltext.indexOf("<TimeZoneResponse");
xmltext = xmltext.substring(startpos);
XmlPullParser parser;
try {
parser = XmlPullParserFactory.newInstance().newPullParser();
parser.setInput(new StringReader (xmltext));
int eventType = parser.getEventType();
String tagName = "";
while(eventType != XmlPullParser.END_DOCUMENT) {
switch(eventType) {
case XmlPullParser.START_TAG:
tagName = parser.getName();
break;
case XmlPullParser.TEXT :
if (tagName.equalsIgnoreCase("raw_offset"))
if(raw_offset.compareTo("")== 0)
raw_offset = parser.getText();
if (tagName.equalsIgnoreCase("dst_offset"))
if(dst_offset.compareTo("")== 0)
dst_offset = parser.getText();
break;
}
try {
eventType = parser.next();
} catch (IOException e) {
e.printStackTrace();
}
}
} catch (XmlPullParserException e) {
e.printStackTrace();
erg += e.toString();
}
}
int ro = 0;
if(raw_offset.compareTo("")!= 0)
{
float rof = str_to_float(raw_offset);
ro = (int)rof;
}
int dof = 0;
if(dst_offset.compareTo("")!= 0)
{
float doff = str_to_float(dst_offset);
dof = (int)doff;
}
tsLong = (tsLong + ro + dof) * 1000;
erg = get_UTC_Datetime_from_timestamp(tsLong);
}
return erg;
}
And use it with:
GeoPoint gp = new GeoPoint(39.6034810,-119.6822510);
String Current_TimeZone_Time = get_time_zone_time(gp);
You can access the timezone by the following script:
SELECT * FROM pg_timezone_names WHERE name = current_setting('TIMEZONE');
output will be :
name- Europe/Berlin,
abbrev - CET,
utc_offset- 01:00:00,
is_dst- false
To get the current time in the local timezone as a naive datetime object:
from datetime import datetime
naive_dt = datetime.now()
If it doesn't return the expected time then it means that your computer is misconfigured. You should fix it first (it is unrelated to Python).
To get the current time in UTC as a naive datetime object:
naive_utc_dt = datetime.utcnow()
To get the current time as an aware datetime object in Python 3.3+:
from datetime import datetime, timezone
utc_dt = datetime.now(timezone.utc) # UTC time
dt = utc_dt.astimezone() # local time
To get the current time in the given time zone from the tz database:
import pytz
tz = pytz.timezone('Europe/Berlin')
berlin_now = datetime.now(tz)
It works during DST transitions. It works if the timezone had different UTC offset in the past i.e., it works even if the timezone corresponds to multiple tzinfo objects at different times.
DateFormat df = DateFormat.getDateTimeInstance(DateFormat.FULL, DateFormat.FULL);
df.setTimeZone(TimeZone.getTimeZone("PST"));
final String dateTimeString = df.format(new Date());
Instead of converting each date, you can use the following code:
long difference = (sDt4.getTime() - sDt3.getTime()) / 1000;
System.out.println(difference);
And then see that the result is:
1
If you want a timestamp instead of just a date with sysdate, you can specify a timezone using systimestamp:
select systimestamp at time zone 'UTC' from dual
outputs: 29-AUG-17 06.51.14.781998000 PM UTC
The accepted answer above:
-Duser.timezone="Europe/Sofia"
Didn't work for me exactly. I only was able to successfully change my timezone when I didn't have quotes around the parameters:
-Duser.timezone=Europe/Sofia
I am not sure what math can be done on a DATETIME data type, but if you are using PHP, I strongly recommend using the integer-based timestamps. Basically, you can store a 4-byte integer in the database using PHP's time() function. This makes doing math on it much more straightforward.
There are two issues with the code in the original question: there should not be a :
in the timezone and the format string for "timezone as an offset" is lower case %z
not upper %Z
.
This works for me in Python v3.6
>>> from datetime import datetime
>>> t = datetime.strptime("2012-11-01T04:16:13-0400", "%Y-%m-%dT%H:%M:%S%z")
>>> print(t)
2012-11-01 04:16:13-04:00
Simply Set the Time Zone and Get Back According
new Date().toLocaleString("en-US", {timeZone: "America/New_York"})
Other Time-zones are as Following
var world_timezones =
[
'Europe/Andorra',
'Asia/Dubai',
'Asia/Kabul',
'Europe/Tirane',
'Asia/Yerevan',
'Antarctica/Casey',
'Antarctica/Davis',
'Antarctica/DumontDUrville',
'Antarctica/Mawson',
'Antarctica/Palmer',
'Antarctica/Rothera',
'Antarctica/Syowa',
'Antarctica/Troll',
'Antarctica/Vostok',
'America/Argentina/Buenos_Aires',
'America/Argentina/Cordoba',
'America/Argentina/Salta',
'America/Argentina/Jujuy',
'America/Argentina/Tucuman',
'America/Argentina/Catamarca',
'America/Argentina/La_Rioja',
'America/Argentina/San_Juan',
'America/Argentina/Mendoza',
'America/Argentina/San_Luis',
'America/Argentina/Rio_Gallegos',
'America/Argentina/Ushuaia',
'Pacific/Pago_Pago',
'Europe/Vienna',
'Australia/Lord_Howe',
'Antarctica/Macquarie',
'Australia/Hobart',
'Australia/Currie',
'Australia/Melbourne',
'Australia/Sydney',
'Australia/Broken_Hill',
'Australia/Brisbane',
'Australia/Lindeman',
'Australia/Adelaide',
'Australia/Darwin',
'Australia/Perth',
'Australia/Eucla',
'Asia/Baku',
'America/Barbados',
'Asia/Dhaka',
'Europe/Brussels',
'Europe/Sofia',
'Atlantic/Bermuda',
'Asia/Brunei',
'America/La_Paz',
'America/Noronha',
'America/Belem',
'America/Fortaleza',
'America/Recife',
'America/Araguaina',
'America/Maceio',
'America/Bahia',
'America/Sao_Paulo',
'America/Campo_Grande',
'America/Cuiaba',
'America/Santarem',
'America/Porto_Velho',
'America/Boa_Vista',
'America/Manaus',
'America/Eirunepe',
'America/Rio_Branco',
'America/Nassau',
'Asia/Thimphu',
'Europe/Minsk',
'America/Belize',
'America/St_Johns',
'America/Halifax',
'America/Glace_Bay',
'America/Moncton',
'America/Goose_Bay',
'America/Blanc-Sablon',
'America/Toronto',
'America/Nipigon',
'America/Thunder_Bay',
'America/Iqaluit',
'America/Pangnirtung',
'America/Atikokan',
'America/Winnipeg',
'America/Rainy_River',
'America/Resolute',
'America/Rankin_Inlet',
'America/Regina',
'America/Swift_Current',
'America/Edmonton',
'America/Cambridge_Bay',
'America/Yellowknife',
'America/Inuvik',
'America/Creston',
'America/Dawson_Creek',
'America/Fort_Nelson',
'America/Vancouver',
'America/Whitehorse',
'America/Dawson',
'Indian/Cocos',
'Europe/Zurich',
'Africa/Abidjan',
'Pacific/Rarotonga',
'America/Santiago',
'America/Punta_Arenas',
'Pacific/Easter',
'Asia/Shanghai',
'Asia/Urumqi',
'America/Bogota',
'America/Costa_Rica',
'America/Havana',
'Atlantic/Cape_Verde',
'America/Curacao',
'Indian/Christmas',
'Asia/Nicosia',
'Asia/Famagusta',
'Europe/Prague',
'Europe/Berlin',
'Europe/Copenhagen',
'America/Santo_Domingo',
'Africa/Algiers',
'America/Guayaquil',
'Pacific/Galapagos',
'Europe/Tallinn',
'Africa/Cairo',
'Africa/El_Aaiun',
'Europe/Madrid',
'Africa/Ceuta',
'Atlantic/Canary',
'Europe/Helsinki',
'Pacific/Fiji',
'Atlantic/Stanley',
'Pacific/Chuuk',
'Pacific/Pohnpei',
'Pacific/Kosrae',
'Atlantic/Faroe',
'Europe/Paris',
'Europe/London',
'Asia/Tbilisi',
'America/Cayenne',
'Africa/Accra',
'Europe/Gibraltar',
'America/Godthab',
'America/Danmarkshavn',
'America/Scoresbysund',
'America/Thule',
'Europe/Athens',
'Atlantic/South_Georgia',
'America/Guatemala',
'Pacific/Guam',
'Africa/Bissau',
'America/Guyana',
'Asia/Hong_Kong',
'America/Tegucigalpa',
'America/Port-au-Prince',
'Europe/Budapest',
'Asia/Jakarta',
'Asia/Pontianak',
'Asia/Makassar',
'Asia/Jayapura',
'Europe/Dublin',
'Asia/Jerusalem',
'Asia/Kolkata',
'Indian/Chagos',
'Asia/Baghdad',
'Asia/Tehran',
'Atlantic/Reykjavik',
'Europe/Rome',
'America/Jamaica',
'Asia/Amman',
'Asia/Tokyo',
'Africa/Nairobi',
'Asia/Bishkek',
'Pacific/Tarawa',
'Pacific/Enderbury',
'Pacific/Kiritimati',
'Asia/Pyongyang',
'Asia/Seoul',
'Asia/Almaty',
'Asia/Qyzylorda',
'Asia/Qostanay',
'Asia/Aqtobe',
'Asia/Aqtau',
'Asia/Atyrau',
'Asia/Oral',
'Asia/Beirut',
'Asia/Colombo',
'Africa/Monrovia',
'Europe/Vilnius',
'Europe/Luxembourg',
'Europe/Riga',
'Africa/Tripoli',
'Africa/Casablanca',
'Europe/Monaco',
'Europe/Chisinau',
'Pacific/Majuro',
'Pacific/Kwajalein',
'Asia/Yangon',
'Asia/Ulaanbaatar',
'Asia/Hovd',
'Asia/Choibalsan',
'Asia/Macau',
'America/Martinique',
'Europe/Malta',
'Indian/Mauritius',
'Indian/Maldives',
'America/Mexico_City',
'America/Cancun',
'America/Merida',
'America/Monterrey',
'America/Matamoros',
'America/Mazatlan',
'America/Chihuahua',
'America/Ojinaga',
'America/Hermosillo',
'America/Tijuana',
'America/Bahia_Banderas',
'Asia/Kuala_Lumpur',
'Asia/Kuching',
'Africa/Maputo',
'Africa/Windhoek',
'Pacific/Noumea',
'Pacific/Norfolk',
'Africa/Lagos',
'America/Managua',
'Europe/Amsterdam',
'Europe/Oslo',
'Asia/Kathmandu',
'Pacific/Nauru',
'Pacific/Niue',
'Pacific/Auckland',
'Pacific/Chatham',
'America/Panama',
'America/Lima',
'Pacific/Tahiti',
'Pacific/Marquesas',
'Pacific/Gambier',
'Pacific/Port_Moresby',
'Pacific/Bougainville',
'Asia/Manila',
'Asia/Karachi',
'Europe/Warsaw',
'America/Miquelon',
'Pacific/Pitcairn',
'America/Puerto_Rico',
'Asia/Gaza',
'Asia/Hebron',
'Europe/Lisbon',
'Atlantic/Madeira',
'Atlantic/Azores',
'Pacific/Palau',
'America/Asuncion',
'Asia/Qatar',
'Indian/Reunion',
'Europe/Bucharest',
'Europe/Belgrade',
'Europe/Kaliningrad',
'Europe/Moscow',
'Europe/Simferopol',
'Europe/Kirov',
'Europe/Astrakhan',
'Europe/Volgograd',
'Europe/Saratov',
'Europe/Ulyanovsk',
'Europe/Samara',
'Asia/Yekaterinburg',
'Asia/Omsk',
'Asia/Novosibirsk',
'Asia/Barnaul',
'Asia/Tomsk',
'Asia/Novokuznetsk',
'Asia/Krasnoyarsk',
'Asia/Irkutsk',
'Asia/Chita',
'Asia/Yakutsk',
'Asia/Khandyga',
'Asia/Vladivostok',
'Asia/Ust-Nera',
'Asia/Magadan',
'Asia/Sakhalin',
'Asia/Srednekolymsk',
'Asia/Kamchatka',
'Asia/Anadyr',
'Asia/Riyadh',
'Pacific/Guadalcanal',
'Indian/Mahe',
'Africa/Khartoum',
'Europe/Stockholm',
'Asia/Singapore',
'America/Paramaribo',
'Africa/Juba',
'Africa/Sao_Tome',
'America/El_Salvador',
'Asia/Damascus',
'America/Grand_Turk',
'Africa/Ndjamena',
'Indian/Kerguelen',
'Asia/Bangkok',
'Asia/Dushanbe',
'Pacific/Fakaofo',
'Asia/Dili',
'Asia/Ashgabat',
'Africa/Tunis',
'Pacific/Tongatapu',
'Europe/Istanbul',
'America/Port_of_Spain',
'Pacific/Funafuti',
'Asia/Taipei',
'Europe/Kiev',
'Europe/Uzhgorod',
'Europe/Zaporozhye',
'Pacific/Wake',
'America/New_York',
'America/Detroit',
'America/Kentucky/Louisville',
'America/Kentucky/Monticello',
'America/Indiana/Indianapolis',
'America/Indiana/Vincennes',
'America/Indiana/Winamac',
'America/Indiana/Marengo',
'America/Indiana/Petersburg',
'America/Indiana/Vevay',
'America/Chicago',
'America/Indiana/Tell_City',
'America/Indiana/Knox',
'America/Menominee',
'America/North_Dakota/Center',
'America/North_Dakota/New_Salem',
'America/North_Dakota/Beulah',
'America/Denver',
'America/Boise',
'America/Phoenix',
'America/Los_Angeles',
'America/Anchorage',
'America/Juneau',
'America/Sitka',
'America/Metlakatla',
'America/Yakutat',
'America/Nome',
'America/Adak',
'Pacific/Honolulu',
'America/Montevideo',
'Asia/Samarkand',
'Asia/Tashkent',
'America/Caracas',
'Asia/Ho_Chi_Minh',
'Pacific/Efate',
'Pacific/Wallis',
'Pacific/Apia',
'Africa/Johannesburg'
];
Try this PHP code:
<?php
$ip = $_SERVER['REMOTE_ADDR'];
$json = file_get_contents("http://api.easyjquery.com/ips/?ip=" . $ip . "&full=true");
$json = json_decode($json,true);
$timezone = $json['LocalTimeZone'];
?>
With:
Calendar cal = Calendar.getInstance();
Then cal
have the current date and time.
You also could get the current Date and Time for timezone with:
Calendar cal2 = Calendar.getInstance(TimeZone.getTimeZone("GMT-2"));
You could ask cal.get(Calendar.DATE);
or other Calendar constant about others details.
Date and Timestamp are deprecated in Java. Calendar class it isn't.
If you have the SUPER privilege, you can set the global server time zone value at runtime with this statement:
mysql> SET GLOBAL time_zone = timezone;
Building on the answers above, I am using this native one liner to convert the long timezone string to the three letter string:
var longTz = 'America/Los_Angeles';
var shortTz = new Date().
toLocaleString("en", {timeZoneName: "short", timeZone: longTz}).
split(' ').
pop();
This will give PDT or PST depending on the date provided. In my particular use case, developing on Salesforce (Aura/Lightning), we are able to get the user timezone in the long format from the backend.
To account for milliseconds and the user's time zone, use the following:
var _userOffset = _date.getTimezoneOffset()*60*1000; // user's offset time
var _centralOffset = 6*60*60*1000; // 6 for central time - use whatever you need
_date = new Date(_date.getTime() - _userOffset + _centralOffset); // redefine variable
Here’s the modern answer (valid from 2014 and on). The accepted answer was a very fine answer in 2011. These days I recommend no one uses the Date
, DateFormat
and SimpleDateFormat
classes. It all goes more natural with the modern Java date and time API.
To get a date-time object from your millis:
ZonedDateTime dateTime = Instant.ofEpochMilli(millis)
.atZone(ZoneId.of("Australia/Sydney"));
If millis
equals 1318388699000L
, this gives you 2011-10-12T14:04:59+11:00[Australia/Sydney]
. Should the code in some strange way end up on a JVM that doesn’t know Australia/Sydney time zone, you can be sure to be notified through an exception.
If you want the date-time in your string format for presentation:
String formatted = dateTime.format(DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm:ss"));
Result:
12/10/2011 14:04:59
PS I don’t know what you mean by “The above doesn't work.” On my computer your code in the question too prints 12/10/2011 14:04:59
.
In Python 3.x, local timezone can be figured out like this:
import datetime
LOCAL_TIMEZONE = datetime.datetime.now(datetime.timezone.utc).astimezone().tzinfo
It's a tricky use of datetime
's code .
For python >= 3.6, you'll need
import datetime
LOCAL_TIMEZONE = datetime.datetime.now(datetime.timezone(datetime.timedelta(0))).astimezone().tzinfo
The Z stands for 'Zulu' - your times are in UTC. From Wikipedia:
The UTC time zone is sometimes denoted by the letter Z—a reference to the equivalent nautical time zone (GMT), which has been denoted by a Z since about 1950. The letter also refers to the "zone description" of zero hours, which has been used since 1920 (see time zone history). Since the NATO phonetic alphabet and amateur radio word for Z is "Zulu", UTC is sometimes known as Zulu time. This is especially true in aviation, where Zulu is the universal standard.
You should get the (UTC) offset (in minutes) of the client:
var offset = new Date().getTimezoneOffset();
And then do the correspondent adding or substraction to the time you get from the server.
Hope this helps.
To convert a time in one timezone to another timezone in Python, you could use datetime.astimezone():
so, below code is to convert the local time to other time zone.
# Time conversion from local time
import datetime
import pytz
dt_today = datetime.datetime.today() # Local time
dt_India = dt_today.astimezone(pytz.timezone('Asia/Kolkata'))
dt_London = dt_today.astimezone(pytz.timezone('Europe/London'))
India = (dt_India.strftime('%m/%d/%Y %H:%M'))
London = (dt_London.strftime('%m/%d/%Y %H:%M'))
print("Indian standard time: "+India+" IST")
print("British Summer Time: "+London+" BST")
import pytz
for tz in pytz.all_timezones:
print(tz)
Simplest Solution With Simple Date Format: SimpleDateFormat("ZZZZZ"):
Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("GMT"),
Locale.getDefault());
Date currentLocalTime = calendar.getTime();
DateFormat date = new SimpleDateFormat("ZZZZZ",Locale.getDefault());
String localTime = date.format(currentLocalTime);
System.out.println(localTime+ " TimeZone " );
==> Output is : +05:30
If you want to get advantage of your local machine timezone you can use myDateTime.ToUniversalTime()
to get the UTC time from your local time or myDateTime.ToLocalTime()
to convert the UTC time to the local machine's time.
// convert UTC time from the database to the machine's time
DateTime databaseUtcTime = new DateTime(2011,6,5,10,15,00);
var localTime = databaseUtcTime.ToLocalTime();
// convert local time to UTC for database save
var databaseUtcTime = localTime.ToUniversalTime();
If you need to convert time from/to other timezones, you may use TimeZoneInfo.ConvertTime()
or TimeZoneInfo.ConvertTimeFromUtc()
.
// convert UTC time from the database to japanese time
DateTime databaseUtcTime = new DateTime(2011,6,5,10,15,00);
var japaneseTimeZone = TimeZoneInfo.FindSystemTimeZoneById("Tokyo Standard Time");
var japaneseTime = TimeZoneInfo.ConvertTimeFromUtc(databaseUtcTime, japaneseTimeZone);
// convert japanese time to UTC for database save
var databaseUtcTime = TimeZoneInfo.ConvertTimeToUtc(japaneseTime, japaneseTimeZone);
# First we obtain de timezone info o some datatime variable
tz_info = your_timezone_aware_variable.tzinfo
# Now we can subtract two variables using the same time zone info
# For instance
# Lets obtain the Now() datetime but for the tz_info we got before
diff = datetime.datetime.now(tz_info)-your_timezone_aware_variable
Conclusion: You must mange your datetime variables with the same time info
For windows you can use:
Running Windows command prompt commands in python.
import os
os.system('tzutil /s "Central Standard Time"')
In windows command prompt try:
This gives current timezone:
tzutil /g
This gives a list of timezones:
tzutil /l
This will set the timezone:
tzutil /s "Central America Standard Time"
For further reference: http://woshub.com/how-to-set-timezone-from-command-prompt-in-windows/
Convert the Date to String and do it with SimpleDateFormat.
SimpleDateFormat readFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
readFormat.setTimeZone(TimeZone.getTimeZone("GMT" + timezoneOffset));
String dateStr = readFormat.format(date);
SimpleDateFormat writeFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
Date date = writeFormat.parse(dateStr);
DateTime is capable of storing only two distinct times, the local time and UTC. The Kind property indicates which.
DateTimeOffset expands on this by being able to store local times from anywhere in the world. It also stores the offset between that local time and UTC. Note how DateTime cannot do this unless you'd add an extra member to your class to store that UTC offset. Or only ever work with UTC. Which in itself is a fine idea btw.
With regards to JSR-310 another project of interest might be threetenbp.
JSR-310 provides a new date and time library for Java SE 8. This project is the backport to Java SE 6 and 7.
In case you are working on an Android project you might want to checkout the ThreeTenABP library.
compile "com.jakewharton.threetenabp:threetenabp:${version}"
JSR-310 was included in Java 8 as the java.time.* package. It is a full replacement for the ailing Date and Calendar APIs in both Java and Android. JSR-310 was backported to Java 6 by its creator, Stephen Colebourne, from which this library is adapted.
Ruby gem to convert zip code to timezone: https://github.com/Katlean/TZip (forked from https://github.com/farski/TZip).
> ActiveSupport::TimeZone.find_by_zipcode('90029')
=> "Pacific Time (US & Canada)"
It's fast, small, and has no external dependencies, but keep in mind that zip codes just don't map perfectly to timezones.
As an improvement on Phill Pafford's answer (I did not understand his 'Y-d-mTG:i:sz' and he suggested to revert timezone). So I propose this (I complicated by changing the HMTL format in plain/text...):
<?php
header('content-type: text/plain;');
$my_timestamp = strtotime("2010-01-19 00:00:00");
// stores timezone
$my_timezone = date_default_timezone_get();
echo date(DATE_ATOM, $my_timestamp)."\t ($my_timezone date)\n";
// changes timezone
date_default_timezone_set("UTC");
echo date("Y-m-d\TH:i:s\Z", $my_timestamp)."\t\t (ISO8601 UTC date)\n";
echo date("Y-m-d H:i:s", $my_timestamp)."\t\t (your UTC date)\n";
// reverts change
date_default_timezone_set($my_timezone);
echo date(DATE_ATOM, $my_timestamp)."\t ($my_timezone date is back)\n";
?>
Since PHP 5.5, there is a separate php.ini file for CLI interface. If You use symfony console from command line, then this specific php.ini is used.
In Ubuntu 13.10 check file:
/etc/php5/cli/php.ini
Something that has worked for me in the past was to determine the offset (in milliseconds) between the user's timezone and GMT. Once you have the offset, you can simply add/subtract (depending on which way the conversion is going) to get the appropriate time in either timezone. I would usually accomplish this by setting the milliseconds field of a Calendar object, but I'm sure you could easily apply it to a timestamp object. Here's the code I use to get the offset
int offset = TimeZone.getTimeZone(timezoneId).getRawOffset();
timezoneId is the id of the user's timezone (such as EST).
I have the same problem and i solved it append only "?serverTimezone=UTC" to my string connection.
#sinossi my problem:
java.sql.SQLException: The server time zone value 'CEST' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.
my dbDriver = com.mysql.jdbc.Driver
my jar = mysql-connector-java-8.0.12.jar
my java = 1.8
my tomcat = Apache Tomcat Version 8.5.32
my MySql server = MySql ver.8.0.12
Another method to construct time zone aware datetime object representing current time:
import datetime
import pytz
pytz.utc.localize( datetime.datetime.utcnow() )
You can install pytz
from PyPI by running:
$ pipenv install pytz
Keep in mind, that 'Country/Zone' is not working sometimes... This issue is not OS, MySQL version and hardware dependent - I've met it since FreeBSD 4 and Slackware Linux in year 2003 till today. MySQL from version 3 till latest source trunk. It is ODD, but it DOES happens. For example:
root@Ubuntu# ls -la /usr/share/zoneinfo/US
total 8
drwxr-xr-x 2 root root 4096 Apr 10 2013 .
drwxr-xr-x 22 root root 4096 Apr 10 2013 ..
lrwxrwxrwx 1 root root 18 Jul 8 22:33 Alaska -> ../SystemV/YST9YDT
lrwxrwxrwx 1 root root 21 Jul 8 22:33 Aleutian -> ../posix/America/Adak
lrwxrwxrwx 1 root root 15 Jul 8 22:33 Arizona -> ../SystemV/MST7
lrwxrwxrwx 1 root root 18 Jul 8 22:33 Central -> ../SystemV/CST6CDT
lrwxrwxrwx 1 root root 18 Jul 8 22:33 Eastern -> ../SystemV/EST5EDT
lrwxrwxrwx 1 root root 37 Jul 8 22:33 East-Indiana -> ../posix/America/Indiana/Indianapolis
lrwxrwxrwx 1 root root 19 Jul 8 22:33 Hawaii -> ../Pacific/Honolulu
lrwxrwxrwx 1 root root 24 Jul 8 22:33 Indiana-Starke -> ../posix/America/Knox_IN
lrwxrwxrwx 1 root root 24 Jul 8 22:33 Michigan -> ../posix/America/Detroit
lrwxrwxrwx 1 root root 18 Jul 8 22:33 Mountain -> ../SystemV/MST7MDT
lrwxrwxrwx 1 root root 18 Jul 8 22:33 Pacific -> ../SystemV/PST8PDT
lrwxrwxrwx 1 root root 18 Jul 8 22:33 Pacific-New -> ../SystemV/PST8PDT
lrwxrwxrwx 1 root root 20 Jul 8 22:33 Samoa -> ../Pacific/Pago_Pago
root@Ubuntu#
And a statement like that is supposed to work:
SET time_zone='US/Eastern';
But you have this problem:
Error Code: 1298. Unknown or incorrect time zone: 'EUS/Eastern'
Take a look at the subfolder in your zone information directory, and see the ACTUAL filename for symlink, in this case it's EST5EDT. Then try this statement instead:
SET time_zone='EST5EDT';
And it's actually working as it is supposed to! :) Keep this trick in mind; I haven't seen it to be documented in MySQL manuals and official documentation. But reading the corresponding documentation is must-do thing: MySQL 5.5 timezone official documentation - and don't forget to load timezone data into your server just like that (run as root user!):
mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root mysql
Trick number one - it must be done exactly under MySQL root user. It can fail or produce non-working result even from the user that has full access to a MySQL database - I saw the glitch myself.
You can also just convert the time column to a timestamp by using strftime():
SELECT strftime('%s', timestamp) as timestamp FROM ... ;
Gives you:
1454521888
'timestamp' table column can be a text field even, using the current_timestamp
as DEFAULT.
Without strftime:
SELECT timestamp FROM ... ;
Gives you:
2016-02-03 17:51:28
The problem is that you're displaying time()
, which is a UNIX timestamp based on GMT/UTC. That’s why it doesn’t change. date()
on the other hand, formats the time based on that timestamp.
A timestamp is the number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT).
echo date('Y-m-d H:i:s T', time()) . "<br>\n";
date_default_timezone_set('UTC');
echo date('Y-m-d H:i:s T', time()) . "<br>\n";
Here is a version that works well in September 2020 using fetch and https://worldtimeapi.org/api
fetch("https://worldtimeapi.org/api/ip")
.then(response => response.json())
.then(data => console.log(data.timezone,data.datetime,data.dst));
_x000D_
Use utcOffset function.
var testDateUtc = moment.utc("2015-01-30 10:00:00");
var localDate = moment(testDateUtc).utcOffset(10 * 60); //set timezone offset in minutes
console.log(localDate.format()); //2015-01-30T20:00:00+10:00
Most upvoted answer is probably the best way to get the timezone, however, Intl.DateTimeFormat().resolvedOptions().timeZone
returns IANA timezone name by definition, which is in English.
If you want the timezone's name in current user's language, you can parse it from Date
's string representation like so:
function getTimezoneName() {_x000D_
const today = new Date();_x000D_
const short = today.toLocaleDateString(undefined);_x000D_
const full = today.toLocaleDateString(undefined, { timeZoneName: 'long' });_x000D_
_x000D_
// Trying to remove date from the string in a locale-agnostic way_x000D_
const shortIndex = full.indexOf(short);_x000D_
if (shortIndex >= 0) {_x000D_
const trimmed = full.substring(0, shortIndex) + full.substring(shortIndex + short.length);_x000D_
_x000D_
// by this time `trimmed` should be the timezone's name with some punctuation -_x000D_
// trim it from both sides_x000D_
return trimmed.replace(/^[\s,.\-:;]+|[\s,.\-:;]+$/g, '');_x000D_
_x000D_
} else {_x000D_
// in some magic case when short representation of date is not present in the long one, just return the long one as a fallback, since it should contain the timezone's name_x000D_
return full;_x000D_
}_x000D_
}_x000D_
_x000D_
console.log(getTimezoneName());
_x000D_
Tested in Chrome and Firefox.
Ofcourse, this will not work as intended in some of the environments. For example, node.js returns a GMT offset (e.g. GMT+07:00
) instead of a name. But I think it's still readable as a fallback.
P.S. Won't work in IE11, just as the Intl...
solution.
If you want to know the timezone of the client relative to GMT/UTC here you go:
var d = new Date();
var tz = d.toString().split("GMT")[1].split(" (")[0]; // timezone, i.e. -0700
If you'd like the actual name of the timezone you can try this:
var d = new Date();
var tz = d.toString().split("GMT")[1]; // timezone, i.e. -0700 (Pacific Daylight Time)
Per the first comment by you can also use d.getTimezoneOffset()
to get the offset in minutes from UTC. Couple of gotchas with it though.
480
not -480
. See MDN or MSDN for more documentation.While the string splitting examples work they can be confusing to read. Here is a regex version that should be easier to understand and is probably faster (both methods are very fast though).
If you want to know the timezone of the client relative to GMT/UTC here you go:
var gmtRe = /GMT([\-\+]?\d{4})/; // Look for GMT, + or - (optionally), and 4 characters of digits (\d)
var d = new Date().toString();
var tz = gmtRe.exec(d)[1]; // timezone, i.e. -0700
If you'd like the actual name of the timezone try this:
var tzRe = /\(([\w\s]+)\)/; // Look for "(", any words (\w) or spaces (\s), and ")"
var d = new Date().toString();
var tz = tzRe.exec(d)[1]; // timezone, i.e. "Pacific Daylight Time"
i work with this npm package unix-system-timezone
Use dateutil.tz.tzlocal()
to get the timezone in your usage of datetime.datetime.now()
and datetime.datetime.astimezone()
:
from datetime import datetime
from dateutil import tz
unlocalisedDatetime = datetime.now()
localisedDatetime1 = datetime.now(tz = tz.tzlocal())
localisedDatetime2 = datetime(2017, 6, 24, 12, 24, 36, tz.tzlocal())
localisedDatetime3 = unlocalisedDatetime.astimezone(tz = tz.tzlocal())
localisedDatetime4 = unlocalisedDatetime.replace(tzinfo = tz.tzlocal())
Note that datetime.astimezone
will first convert your datetime
object to UTC then into the timezone, which is the same as calling datetime.replace
with the original timezone information being None
.
Use Area/Location format properly. Example:
TIME_ZONE = 'Asia/Kolkata'
My solution is this:
$tempDate = '2012-07-10';
echo date('l', strtotime( $tempDate));
Output is: Tuesday
$tempDate = '2012-07-10';
echo date('D', strtotime( $tempDate));
Output is: Tue
I tend to lean towards using DateTimeOffset for all date-time storage that isn't related to a local event (ie: meeting/party, etc, 12pm-3pm at the museum).
To get the current DTO as UTC:
DECLARE @utcNow DATETIMEOFFSET = CONVERT(DATETIMEOFFSET, SYSUTCDATETIME())
DECLARE @utcToday DATE = CONVERT(DATE, @utcNow);
DECLARE @utcTomorrow DATE = DATEADD(D, 1, @utcNow);
SELECT @utcToday [today]
,@utcTomorrow [tomorrow]
,@utcNow [utcNow]
NOTE: I will always use UTC when sending over the wire... client-side JS can easily get to/from local UTC. See: new Date().toJSON()
...
The following JS will handle parsing a UTC/GMT date in ISO8601 format to a local datetime.
if (typeof Date.fromISOString != 'function') {
//method to handle conversion from an ISO-8601 style string to a Date object
// Date.fromISOString("2009-07-03T16:09:45Z")
// Fri Jul 03 2009 09:09:45 GMT-0700
Date.fromISOString = function(input) {
var date = new Date(input); //EcmaScript5 includes ISO-8601 style parsing
if (!isNaN(date)) return date;
//early shorting of invalid input
if (typeof input !== "string" || input.length < 10 || input.length > 40) return null;
var iso8601Format = /^(\d{4})-(\d{2})-(\d{2})((([T ](\d{2}):(\d{2})(:(\d{2})(\.(\d{1,12}))?)?)?)?)?([Zz]|([-+])(\d{2})\:?(\d{2}))?$/;
//normalize input
var input = input.toString().replace(/^\s+/,'').replace(/\s+$/,'');
if (!iso8601Format.test(input))
return null; //invalid format
var d = input.match(iso8601Format);
var offset = 0;
date = new Date(+d[1], +d[2]-1, +d[3], +d[7] || 0, +d[8] || 0, +d[10] || 0, Math.round(+("0." + (d[12] || 0)) * 1000));
//use specified offset
if (d[13] == 'Z') offset = 0-date.getTimezoneOffset();
else if (d[13]) offset = ((parseInt(d[15],10) * 60) + (parseInt(d[16],10)) * ((d[14] == '-') ? 1 : -1)) - date.getTimezoneOffset();
date.setTime(date.getTime() + (offset * 60000));
if (date.getTime() <= new Date(-62135571600000).getTime()) // CLR DateTime.MinValue
return null;
return date;
};
}
PHP's DateTime
object is pretty flexible.
$UTC = new DateTimeZone("UTC");
$newTZ = new DateTimeZone("America/New_York");
$date = new DateTime( "2011-01-01 15:00:00", $UTC );
$date->setTimezone( $newTZ );
echo $date->format('Y-m-d H:i:s');
What about
now()::timestamp
If your other timestamp are without time zone then this cast will yield the matching type "timestamp without time zone" for the current time.
I would like to read what others think about that option, though. I still don't trust in my understanding of this "with/without" time zone stuff.
EDIT: Adding Michael Ekoka's comment here because it clarifies an important point:
Caveat. The question is about generating default timestamp in UTC for a timestamp column that happens to not store the time zone (perhaps because there's no need to store the time zone if you know that all your timestamps share the same). What your solution does is to generate a local timestamp (which for most people will not necessarily be set to UTC) and store it as a naive timestamp (one that does not specify its time zone).
and if you don't have the option to go on java8 better use 'yyyy-MM-dd'T'HH:mm:ssXXX' as this gets correctly parsed again (while with only one X this may not be the case... depending on your parsing function)
X generates: +01
XXX generates: +01:00
You may also try to check the version of the Oracle jdbc driver and Oracle database. Just today I had this issue when using ojdbc6.jar (version 11.2.0.3.0) to connect to an Oracle 9.2.0.4.0 server. Replacing it with ojdbc6.jar version 11.1.0.7.0 solved the issue.
I also managed to make ojdbc6.jar version 11.2.0.3.0 connect without error, by adding oracle.jdbc.timezoneAsRegion=false
in file oracle/jdbc/defaultConnectionProperties.properties (inside the jar). Found this solution here (broken link)
Then, one can add -Doracle.jdbc.timezoneAsRegion=false
to the command line, or AddVMOption -Doracle.jdbc.timezoneAsRegion=false
in config files that use this notation.
You can also do this programmatically, e.g. with System.setProperty
.
In some cases you can add the environment variable on a per-connection basis if that's allowed (SQL Developer allows this in the "Advanced" connection properties; I verified it to work when connecting to a database that doesn't have the problem and using a database link to a database which has).
there is an npm module called 'timezones.json' you can use for this; it basically consists of a json file with objects containing information on daylight savings and offset,....
for asia/jakarta it would be able to return this object:
{
"value": "SE Asia Standard Time",
"abbr": "SAST",
"offset": 7,
"isdst": false,
"text": "(UTC+07:00) Bangkok, Hanoi, Jakarta",
"utc": [
"Antarctica/Davis",
"Asia/Bangkok",
"Asia/Hovd",
"Asia/Jakarta",
"Asia/Phnom_Penh",
"Asia/Pontianak",
"Asia/Saigon",
"Asia/Vientiane",
"Etc/GMT-7",
"Indian/Christmas"
]
}
you can find it here:
https://github.com/dmfilipenko/timezones.json
https://www.npmjs.com/package/timezones.json
hope it's useful
Building on Alexei's comment. This should work for DST too.
import time
import datetime
def utc_to_local(dt):
if time.localtime().tm_isdst:
return dt - datetime.timedelta(seconds = time.altzone)
else:
return dt - datetime.timedelta(seconds = time.timezone)
This is for the text form of a timestamp that can be used in your text files. (The title of the question was different in the past, so the introduction to this answer was changed to clarify how it could be interpreted as the time. [updated 2016-01-14])
You can get the timestamp as a string using the .now()
or .utcnow()
of the datetime.datetime
:
>>> import datetime
>>> print datetime.datetime.utcnow()
2012-12-15 10:14:51.898000
The now
differs from utcnow
as expected -- otherwise they work the same way:
>>> print datetime.datetime.now()
2012-12-15 11:15:09.205000
You can render the timestamp to the string explicitly:
>>> str(datetime.datetime.now())
'2012-12-15 11:15:24.984000'
Or you can be even more explicit to format the timestamp the way you like:
>>> datetime.datetime.now().strftime("%A, %d. %B %Y %I:%M%p")
'Saturday, 15. December 2012 11:19AM'
If you want the ISO format, use the .isoformat()
method of the object:
>>> datetime.datetime.now().isoformat()
'2013-11-18T08:18:31.809000'
You can use these in variables for calculations and printing without conversions.
>>> ts = datetime.datetime.now()
>>> tf = datetime.datetime.now()
>>> te = tf - ts
>>> print ts
2015-04-21 12:02:19.209915
>>> print tf
2015-04-21 12:02:30.449895
>>> print te
0:00:11.239980
Convert the date from the UTC calendar to one with the appropriate local NSTimeZone.
This is the code fully tested and working for me. You can use it just copy and paste in your aspx page and cs page.
This is my blog you can download full code here. thanks.
<form id="form1" runat="server">_x000D_
<div style="font-size: 30px; padding: 25px; text-align: center;">_x000D_
Get Current Date And Time Of All TimeZones_x000D_
</div>_x000D_
<hr />_x000D_
<div style="font-size: 18px; padding: 25px; text-align: center;">_x000D_
<div class="clsLeft">_x000D_
Select TimeZone :-_x000D_
</div>_x000D_
<div class="clsRight">_x000D_
<asp:DropDownList ID="ddlTimeZone" runat="server" AutoPostBack="True" OnSelectedIndexChanged="ddlTimeZone_SelectedIndexChanged"_x000D_
Font-Size="18px">_x000D_
</asp:DropDownList>_x000D_
</div>_x000D_
<div class="clearspace">_x000D_
</div>_x000D_
<div class="clsLeft">_x000D_
Selected TimeZone :-_x000D_
</div>_x000D_
<div class="clsRight">_x000D_
<asp:Label ID="lblTimeZone" runat="server" Text="" />_x000D_
</div>_x000D_
<div class="clearspace">_x000D_
</div>_x000D_
<div class="clsLeft">_x000D_
Current Date And Time :-_x000D_
</div>_x000D_
<div class="clsRight">_x000D_
<asp:Label ID="lblCurrentDateTime" runat="server" Text="" />_x000D_
</div>_x000D_
</div>_x000D_
<p>_x000D_
</p>_x000D_
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />_x000D_
</form>
_x000D_
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindTimeZone();
GetSelectedTimeZone();
}
}
protected void ddlTimeZone_SelectedIndexChanged(object sender, EventArgs e)
{
GetSelectedTimeZone();
}
/// <summary>
/// Get all timezone from local system and bind it in dropdownlist
/// </summary>
private void BindTimeZone()
{
foreach (TimeZoneInfo z in TimeZoneInfo.GetSystemTimeZones())
{
ddlTimeZone.Items.Add(new ListItem(z.DisplayName, z.Id));
}
}
/// <summary>
/// Get selected timezone and current date & time
/// </summary>
private void GetSelectedTimeZone()
{
DateTimeOffset newTime = TimeZoneInfo.ConvertTime(DateTimeOffset.UtcNow, TimeZoneInfo.FindSystemTimeZoneById(ddlTimeZone.SelectedValue));
//DateTimeOffset newTime2 = TimeZoneInfo.ConvertTime(DateTimeOffset.UtcNow, TimeZoneInfo.FindSystemTimeZoneById(ddlTimeZone.SelectedValue));
lblTimeZone.Text = ddlTimeZone.SelectedItem.Text;
lblCurrentDateTime.Text = newTime.ToString();
string str;
str = lblCurrentDateTime.Text;
string s=str.Substring(0, 10);
DateTime dt = new DateTime();
dt = Convert.ToDateTime(s);
// Response.Write(dt.ToString());
Response.Write(ddlTimeZone.SelectedValue);
}
For applications such as Squirrel SQL Client (http://squirrel-sql.sourceforge.net/) version 4 you can set "serverTimezone" under "driver properties" to GMT+1
(example of timezone "Europe/Vienna).
Both Date
and moment
will parse the input string in the local time zone of the browser by default. However Date
is sometimes inconsistent with this regard. If the string is specifically YYYY-MM-DD
, using hyphens, or if it is YYYY-MM-DD HH:mm:ss
, it will interpret it as local time. Unlike Date
, moment
will always be consistent about how it parses.
The correct way to parse an input moment as UTC in the format you provided would be like this:
moment.utc('07-18-2013', 'MM-DD-YYYY')
Refer to this documentation.
If you want to then format it differently for output, you would do this:
moment.utc('07-18-2013', 'MM-DD-YYYY').format('YYYY-MM-DD')
You do not need to call toString
explicitly.
Note that it is very important to provide the input format. Without it, a date like 01-04-2013
might get processed as either Jan 4th or Apr 1st, depending on the culture settings of the browser.
Just as Oded has answered. You need to have this sort of detection functionality in javascript.
I've struggled with this myself and realized that the offset is not enough. It does not give you any information about daylight saving for example. I ended up writing some code to map to zoneinfo database keys.
By checking several dates around a year you can more accurately determine a timezone.
Try the script here: http://jsfiddle.net/pellepim/CsNcf/
Simply change your system timezone and click run to test it. If you are running chrome you need to do each test in a new tab though (and safar needs to be restarted to pick up timezone changes).
If you want more details of the code check out: https://bitbucket.org/pellepim/jstimezonedetect/
I am amazed at how complex this question has become.
These are all identical, and their integer values all === EPOCH time :D
console.log((new Date()).getTime() / 1000, new Date().valueOf() / 1000, (new Date() - new Date().getTimezoneOffset() * 60 * 1000) / 1000);
Do not believe me, checkout: http://www.epochconverter.com/
The other answers here are useful but they don't cover how to access Pacific specifically - here you go:
public static DateTime GmtToPacific(DateTime dateTime)
{
return TimeZoneInfo.ConvertTimeFromUtc(dateTime,
TimeZoneInfo.FindSystemTimeZoneById("Pacific Standard Time"));
}
Oddly enough, although "Pacific Standard Time" normally means something different from "Pacific Daylight Time," in this case it refers to Pacific time in general. In fact, if you use FindSystemTimeZoneById
to fetch it, one of the properties available is a bool telling you whether that timezone is currently in daylight savings or not.
You can see more generalized examples of this in a library I ended up throwing together to deal with DateTimes I need in different TimeZones based on where the user is asking from, etc:
https://github.com/b9chris/TimeZoneInfoLib.Net
This won't work outside of Windows (for example Mono on Linux) since the list of times comes from the Windows Registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\
Underneath that you'll find keys (folder icons in Registry Editor); the names of those keys are what you pass to FindSystemTimeZoneById
. On Linux you have to use a separate Linux-standard set of timezone definitions, which I've not adequately explored.
Try this
public class Validation {
public final static boolean isValidEmail(CharSequence target) {
if (target == null) {
return false;
} else {
return android.util.Patterns.EMAIL_ADDRESS.matcher(target).matches();
}
}
public static final boolean isValidPhoneNumber(CharSequence target) {
if (target.length()!=10) {
return false;
} else {
return android.util.Patterns.PHONE.matcher(target).matches();
}
}
}
What are the steps for that? where is AppCompat located?
Download the support library here:
http://developer.android.com/tools/support-library/setup.html
If you are using Eclipse:
Go to the tabs at the top and select ( Windows -> Android SDK Manager ). Under the 'extras' section, check 'Android Support Library' and check it for installation.
After that, the AppCompat library can be found at:
android-sdk/extras/android/support/v7/appcompat
You need to reference this AppCompat library in your Android project.
Import the library into Eclipse.
Your .htaccess
is slightly off. Look at mine:
RewriteEngine On
RewriteBase /codeigniter
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond $1 !^(index\.php|images|robots\.txt|css|docs|js|system)
RewriteRule ^(.*)$ /codeigniter/index.php?/$1 [L]
Notice "codeigniter" in two places.
after that, in your config:
base_url = "http://localhost/codeigniter"
index = ""
Change codeigniter to "ci" whereever appropriate
as mentioned in the responses above, it could be related to AWS security groups, and other things. but if you created a user and gave it remote access '%' and still getting this error, check your mysql config file, on debian, you can find it here: /etc/mysql/my.cnf and find the line:
bind-address = 127.0.0.1
and change it to:
bind-address = 0.0.0.0
and restart mysql.
on debian/ubuntu:
/etc/init.d/mysql restart
I hope this works for you.
"Hard Coding" means something that you want to embeded with your program or any project that can not be changed directly. For example if you are using a database server, then you must hardcode to connect your database with your project and that can not be changed by user. Because you have hard coded.
Table is the obvious choice, but it returns an object of class table
which takes a few annoying steps to transform back into a data.frame
So, if you're OK using dplyr, you use the command tally
:
library(dplyr)
df = data.frame(sex=sample(c("M", "F"), 100000, replace=T), occupation=sample(c('Analyst', 'Student'), 100000, replace=T)
df %>% group_by_all() %>% tally()
# A tibble: 4 x 3
# Groups: sex [2]
sex occupation `n()`
<fct> <fct> <int>
1 F Analyst 25105
2 F Student 24933
3 M Analyst 24769
4 M Student 25193
int numberOfSpaces = 3;
String space = String.format("%"+ numberOfSpaces +"s", " ");
You can simply wrap Text field widget in padding widget..... Like this,
Padding(
padding: EdgeInsets.only(left: 5.0, right: 5.0),
child: TextField(
cursorColor: Colors.blue,
decoration: InputDecoration(
labelText: 'Email',
hintText: '[email protected]',
//labelStyle: textStyle,
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(5),
borderSide: BorderSide(width: 2, color: Colors.blue,)),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(10),
borderSide: BorderSide(width: 2, color: Colors.green)),
)
),
),
Because JavaScript is such a small language, yet with incredible complexity, you should be able to ask relatively basic questions and find out if they are really that good based on their answers. For instance, my standard first question to gauge the rest of the interview is:
In JavaScript, what is the difference between
var x = 1
andx = 1
? Answer in as much or as little detail as you feel comfortable.
Novice JS programmers might have a basic answer about locals vs globals. Intermediate JS guys should definitely have that answer, and should probably mention function-level scope. Anyone calling themselves an "advanced" JS programmer should be prepared to talk about locals, implied globals, the window
object, function-scope, declaration hoisting, and scope chains. Furthermore, I'd love to hear about [[DontDelete]]
, hoisting precedence (parameters vs var
vs function
), and undefined
.
Another good question is to ask them to write a sum()
function that accepts any number of arguments, and returns their sum. Then, ask them to use that function (without modification) to sum all the values in an array. They should write a function that looks like this:
function sum() {
var i, l, result = 0;
for (i = 0, l = arguments.length; i < l; i++) {
result += arguments[i];
}
return result;
}
sum(1,2,3); // 6
And they should invoke it on your array like this (context for apply
can be whatever, I usually use null
in that case):
var data = [1,2,3];
sum.apply(null, data); // 6
If they've got those answers, they probably know their JavaScript. You should then proceed to asking them about non-JS specific stuff like testing, workflows, version control, etc. to find out if they're a good programmer.
Problem is that check weather you have closed all the streams or not if opened close the streams and delete,rename..etc the file this is worked for me
Another way is to create a patch with the differences and apply it in the master branch For instance. Let's say the last commit before you started working on app.js is 00000aaaaa and the commit containg the version you want is 00000bbbbb
The you run this on the experiment branch:
git diff 00000aaaaa 00000bbbbb app.js > ~/app_changes.git
This will create a file with all the differences between those two commits for app.js that you can apply wherever you want. You can keep that file anywhere outside the project
Then, in master you just run:
git apply ~/app_changes.git
now you are gonna see the changes in the projects as if you had made them manually.
This is also easy to read:
FilePath=(
"/tmp/path1/" #FilePath[0]
"/tmp/path2/" #FilePath[1]
)
#Loop
for Path in "${FilePath[@]}"
do
echo "$Path"
done
I have MongoDB shell version v3.6.4, below code use mongoclient, It's good for me:
var MongoClient = require('mongodb').MongoClient,
assert = require('assert');
var url = 'mongodb://localhost:27017/video';
MongoClient.connect(url,{ useNewUrlParser: true }, function(err, client)
{
assert.equal(null, err);
console.log("Successfully connected to server");
var db = client.db('video');
// Find some documents in our collection
db.collection('movies').find({}).toArray(function(err, docs) {
// Print the documents returned
docs.forEach(function(doc) {
console.log(doc.title);
});
// Close the DB
client.close();
});
// Declare success
console.log("Called find()");
});
For me, this error was because I had some of my data titles were two names, I merged them in one name and all went well.
If you facing grant permission access denied problem, you can try mysql to fix the problem:
grant all privileges on . to root@'localhost' identified by 'Your password';
grant all privileges on . to root@'IP ADDRESS' identified by 'Your password?';
your can try this on any mysql user, its working.
Use below command to login mysql with iP address.
mysql -h 10.0.0.23 -u root -p
Try something like this:
public class test
{
public static void main(String a[])
{
long tmp = 1346524199000;
Date d = new Date(tmp);
System.out.println(d);
}
}
Would like to add:
After update, such as
ALTER TABLE table_name modify column_name tinyint(4) NOT NULL;
If you get
ERROR 1138 (22004): Invalid use of NULL value
Make sure you update the table first to have values in the related column (so it's not null)
You can define such a command easily, using a shell function. This method does not require any external program and does not spawn any child process. It does not attempt hazardous ls
parsing and handles “special” characters (whitespaces, newlines, backslashes and so on) just fine. It only relies on the file name expansion mechanism provided by the shell. It is compatible with at least sh, bash and zsh.
The line below defines a function called count
which prints the number of arguments with which it has been called.
count() { echo $#; }
Simply call it with the desired pattern:
count log*
For the result to be correct when the globbing pattern has no match, the shell option nullglob
(or failglob
— which is the default behavior on zsh) must be set at the time expansion happens. It can be set like this:
shopt -s nullglob # for sh / bash
setopt nullglob # for zsh
Depending on what you want to count, you might also be interested in the shell option dotglob
.
Unfortunately, with bash at least, it is not easy to set these options locally. If you don’t want to set them globally, the most straightforward solution is to use the function in this more convoluted manner:
( shopt -s nullglob ; shopt -u failglob ; count log* )
If you want to recover the lightweight syntax count log*
, or if you really want to avoid spawning a subshell, you may hack something along the lines of:
# sh / bash:
# the alias is expanded before the globbing pattern, so we
# can set required options before the globbing gets expanded,
# and restore them afterwards.
count() {
eval "$_count_saved_shopts"
unset _count_saved_shopts
echo $#
}
alias count='
_count_saved_shopts="$(shopt -p nullglob failglob)"
shopt -s nullglob
shopt -u failglob
count'
As a bonus, this function is of a more general use. For instance:
count a* b* # count files which match either a* or b*
count $(jobs -ps) # count stopped jobs (sh / bash)
By turning the function into a script file (or an equivalent C program), callable from the PATH, it can also be composed with programs such as find
and xargs
:
find "$FIND_OPTIONS" -exec count {} \+ # count results of a search
This is all you have to do:
In front.inc
global $name;
$name = 'james';
For me this has worked-
ALTER TABLE table_name ALTER COLUMN column_name VARCHAR(50)
My recommendation is TORA
Make sure you wrap the condition in the correct precedence
ng-disabled="((!product.img) || (!product.name))"
The problem can be solved in O(n^2) by extending the 2-sum problem with minor modifications.A is the vector containing elements and B is the required sum.
int Solution::threeSumClosest(vector &A, int B) {
sort(A.begin(),A.end());
int k=0,i,j,closest,val;int diff=INT_MAX;
while(k<A.size()-2)
{
i=k+1;
j=A.size()-1;
while(i<j)
{
val=A[i]+A[j]+A[k];
if(val==B) return B;
if(abs(B-val)<diff)
{
diff=abs(B-val);
closest=val;
}
if(B>val)
++i;
if(B<val)
--j;
}
++k;
}
return closest;
First Create an Application on Instagram and get Client Id for your application
http://instagram.com/developer/
Now just copy paste following Url into browser window by replacing your Username and your Client Id https://api.instagram.com/v1/users/search?q=[Your-username]&client_id=[Your-Client-Id]
you will get a Json Result containing General Information about your account along with your Numeric user Id
I tried this and it worked:
C:\cd MySQL installed path\MySQL -uyourusername -pyourpassword
while(something.hasnext())
do something...
if(contains something to process){
do something...
break;
}
}
Just use the break statement;
For eg:this just prints "Breaking..."
while (true) {
if (true) {
System.out.println("Breaking...");
break;
}
System.out.println("Did this print?");
}
I've found using cmd works well as an alternative, especially when you need to pipe the output from the called application (espeically when it doesn't have built in logging, unlike msbuild)
cmd /C "$msbuild $args" >> $outputfile
'OR 1=1
is an attempt to make a query succeed no matter what
The /*
is an attempt to start a multiline comment so the rest of the query is ignored.
An example would be
SELECT userid
FROM users
WHERE username = ''OR 1=1/*'
AND password = ''
AND domain = ''
As you can see if you were to populate the username field without escaping the '
no matter what credentials the user passes in the query would return all userids in the system likely granting access to the attacker (possibly admin access if admin is your first user). You will also notice the remainder of the query would be commented out because of the /*
including the real '
.
The fact that you can see the value in your database means that it was escaped and that particular attack did not succeed. However, you should investigate if any other attempts were made.
Guava API provides MoreCollectors.onlyElement() which is a collector that takes a stream containing exactly one element and returns that element.
The returned collector throws an IllegalArgumentException
if the stream consists of two or more elements, and a NoSuchElementException
if the stream is empty.
Refer the below code for usage:
import static com.google.common.collect.MoreCollectors.onlyElement;
Person matchingPerson = objects.stream
.filter(p -> p.email().equals("testemail"))
.collect(onlyElement());
I got a solution working in the end using Redemption, have a look at these questions...
if anyone faced problem even after using return false;
. then use the below.
setTimeout(function(){document.location.href = "index.php"},500);
used this code for src
$(this).attr("src", urlAbsolute);
I had to golf this in ruby and ended up with
l=->x{x.to_s(2).count ?1}
Usage :
l[2**32-1] # returns 32
Obviously not efficient but does the trick :)
There is generic solution for setting max length in Swift. By IBInspectable you can add new Attribute in Xcode Attribute Inspector.
import UIKit
private var maxLengths = [UITextField: Int]()
extension UITextField {
@IBInspectable var maxLength: Int {
get {
guard let length = maxLengths[self]
else {
return Int.max
}
return length
}
set {
maxLengths[self] = newValue
addTarget(
self,
action: Selector("limitLength:"),
forControlEvents: UIControlEvents.EditingChanged
)
}
}
func limitLength(textField: UITextField) {
guard let prospectiveText = textField.text
where prospectiveText.characters.count > maxLength else {
return
}
let selection = selectedTextRange
text = prospectiveText.substringWithRange(
Range<String.Index>(prospectiveText.startIndex ..< prospectiveText.startIndex.advancedBy(maxLength))
)
selectedTextRange = selection
}
}
Using Ref forwarding you can pass the ref from parent to further down to a child.
const FancyButton = React.forwardRef((props, ref) => (
<button ref={ref} className="FancyButton">
{props.children}
</button>
));
// You can now get a ref directly to the DOM button:
const ref = React.createRef();
<FancyButton ref={ref}>Click me!</FancyButton>;
Note The second ref argument only exists when you define a component with React.forwardRef call. Regular functional or class components don’t receive the ref argument, and ref is not available in props either.
Ref forwarding is not limited to DOM components. You can forward refs to class component instances, too.
Reference: React Documentation.
To add to what Jonathan said: use the -print0
option for find
in conjunction with xargs
as follows:
find test/* -type d -print0 | xargs -0 command
That will execute the command command
with the proper arguments; directories with spaces in them will be properly quoted (i.e. they'll be passed in as one argument).
You can always use the ISNUMERIC
helper function to convert only what's really numeric:
SELECT
CAST(A.my_NvarcharColumn AS BIGINT)
FROM
A
WHERE
ISNUMERIC(A.my_NvarcharColumn) = 1
Try this:
find . -name .svn -exec rm -v {} \;
Read more about the find command at developerWorks.
This didn't work for me under Safari 10:
<input type="file" accept=".csv" />
I had to write this instead:
<input type="file" accept="text/csv" />
Jenkins is a service account, it doesn't have a shell by design. It is generally accepted that service accounts. shouldn't be able to log in interactively.
To resolve "Jenkins Host key verification failed", do the following steps. I have used mercurial with jenkins.
1)Execute following commands on terminal
$ sudo su -s /bin/bash jenkins
provide password
2)Generate public private key using the following command:
ssh-keygen
you can see output as ::
Generating public/private rsa key pair.
Enter file in which to save the key (/var/lib/jenkins/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
3)Press Enter --> Do not give any passphrase--> press enter
Key has been generated
4) go to --> cat /var/lib/jenkins/.ssh/id_rsa.pub
5) Copy key from id_rsa.pub
6)Exit from bash
7) ssh@yourrepository
8) vi .ssh/authorized_keys
9) Paste the key
10) exit
11)Manually login to mercurial server
Note: Pls do manually login otherwise jenkins will again give error "host verification failed"
12)once manually done, Now go to Jenkins and give build
Enjoy!!!
Good Luck
angular.module('elnApp')
.directive('jqdatepicker', function() {
return {
restrict: 'A',
require: 'ngModel',
link: function(scope, element, attrs, ctrl) {
$(element).datepicker({
dateFormat: 'dd.mm.yy',
onSelect: function(date) {
ctrl.$setViewValue(date);
ctrl.$render();
scope.$apply();
}
});
}
};
});
grep -A20 -B20 pattern file.txt
Search pattern and show 20 lines after and before pattern
Replace [^a-zA-Z0-9 -]
with an empty string.
Regex rgx = new Regex("[^a-zA-Z0-9 -]");
str = rgx.Replace(str, "");
This is just Microsoft being cheeky. "Deprecated" implies a language feature that may not be provided in future versions of the standard language / standard libraries, as decreed by the standards committee. It does not, or should not mean, "we, unilaterally, don't think you should use it", no matter how well-founded that advice is.
No. It makes no sense to order the records before grouping, since grouping is going to mutate the result set. The subquery way is the preferred way. If this is going too slow you would have to change your table design, for example by storing the id of of the last post for each author in a seperate table, or introduce a boolean column indicating for each author which of his post is the last one.
Best way to locate anchor elements is to use link=Re-Call
:
selenium.click("link=Re-Call");
It will work..
is_uploaded_file()
is great to use, specially for checking whether it is an uploaded file or a local file (for security purposes).
However, if you want to check whether the user uploaded a file,
use $_FILES['file']['error'] == UPLOAD_ERR_OK
.
See the PHP manual on file upload error messages. If you just want to check for no file, use UPLOAD_ERR_NO_FILE
.
Working off the best answer and addressing my comment, here is a function for the conversion
def bunch_to_dataframe(bunch):
fnames = bunch.feature_names
features = fnames.tolist() if isinstance(fnames, np.ndarray) else fnames
features += ['target']
return pd.DataFrame(data= np.c_[bunch['data'], bunch['target']],
columns=features)
Here's my "teach a person to fish" answer:
Rsync's syntax is definitely non-intuitive, but it is worth understanding.
-vvv
to see the debug info for rsync.$ rsync -nr -vvv --include="**/file_11*.jpg" --exclude="*" /Storage/uploads/ /website/uploads/
[sender] hiding directory 1280000000 because of pattern *
[sender] hiding directory 1260000000 because of pattern *
[sender] hiding directory 1270000000 because of pattern *
The key concept here is that rsync applies the include/exclude patterns for each directory recursively. As soon as the first include/exclude is matched, the processing stops.
The first directory it evaluates is /Storage/uploads
. Storage/uploads
has 1280000000/, 1260000000/, 1270000000/
dirs/files. None of them match file_11*.jpg
to include. All of them match *
to exclude. So they are excluded, and rsync ends.
*/
) first. Then the first dir component will be 1260000000/, 1270000000/, 1280000000/
since they match */
. The next dir component will be 1260000000/
. In 1260000000/
, file_11_00.jpg
matches --include="file_11*.jpg"
, so it is included. And so forth.$ rsync -nrv --include='*/' --include="file_11*.jpg" --exclude="*" /Storage/uploads/ /website/uploads/
./
1260000000/
1260000000/file_11_00.jpg
1260000000/file_11_01.jpg
1270000000/
1270000000/file_11_00.jpg
1270000000/file_11_01.jpg
1280000000/
1280000000/file_11_00.jpg
1280000000/file_11_01.jpg
You can add a wrapper around promise functionality to return an Observable to observer.
import { of, Observable, defer } from 'rxjs';
import { map } from 'rxjs/operators';
function getTodos$(): Observable<any> {
return defer(()=>{
return fetch('https://jsonplaceholder.typicode.com/todos/1')
.then(response => response.json())
.then(json => {
return json;
})
});
}
getTodos$().
subscribe(
(next)=>{
console.log('Data is:', next);
}
)
If all elements of the list may be used as dictionary keys (i.e. they are all hashable) this is often faster. Python Programming FAQ
d = {}
for x in mylist:
d[x] = 1
mylist = list(d.keys())
@Howard Hinnant's answer is both correct and comprehensive. But it might be misunderstood if it's read too quickly, because std::terminate()
(whole process) happens to have the same name as the "terminating" that @Alexander V had in mind (1 thread).
Summary: "terminate 1 thread + forcefully (target thread doesn't cooperate) + pure C++11 = No way."
Write multi-line text with environment variables using echo
:
echo -e "
Home Directory: $HOME \n
hello world 1 \n
hello world 2 \n
line n... \n
" > file.txt
I have to display files of computer code. If special characters are inside the file like less than or greater than, a simple "include" will not display them. Try:
$file = 'code.ino';
$orig = file_get_contents($file);
$a = htmlentities($orig);
echo '<code>';
echo '<pre>';
echo $a;
echo '</pre>';
echo '</code>';
Everything is possible only if there is enough time to research :)
What I got to do is like having people that I iterate into a ui:repeat and display names and other fields in inputs. But one of fields was singleSelect - A and depending on it value update another input - B. even ui:repeat do not have id I put and it appeared in the DOM tree
<ui:repeat id="peopleRepeat"
value="#{myBean.people}"
var="person" varStatus="status">
Than the ids in the html were something like:
myForm:peopleRepeat:0:personType
myForm:peopleRepeat:1:personType
Than in the view I got one method like:
<p:ajax event="change"
listener="#{myBean.onPersonTypeChange(person, status.index)}"/>
And its implementation was in the bean like:
String componentId = "myForm:peopleRepeat" + idx + "personType";
PrimeFaces.current().ajax().update(componentId);
So this way I updated the element from the bean with no issues. PF version 6.2
Good luck and happy coding :)
I think you can simple call like this, this will give you result value.
this.$route.query.page
Look image $route is object in Vue Instance and you can access with this keyword and next you can select object properties like above one :
Have a look Vue-router document for selecting queries value :
mkdirs()
will create the specified directory path in its entirety where mkdir()
will only create the bottom most directory, failing if it can't find the parent directory of the directory it is trying to create.
In other words mkdir()
is like mkdir
and mkdirs()
is like mkdir -p
.
For example, imagine we have an empty /tmp
directory. The following code
new File("/tmp/one/two/three").mkdirs();
would create the following directories:
/tmp/one
/tmp/one/two
/tmp/one/two/three
Where this code:
new File("/tmp/one/two/three").mkdir();
would not create any directories - as it wouldn't find /tmp/one/two
- and would return false
.
This simple way to do your task:
setContentView(R.id.main);
ImageView iv = (ImageView) findViewById(R.id.left);
int width = 60;
int height = 60;
LinearLayout.LayoutParams parms = new LinearLayout.LayoutParams(width,height);
iv.setLayoutParams(parms);
and another way if you want to give screen size in height and width then use below code :
setContentView(R.id.main);
Display display = getWindowManager().getDefaultDisplay();
ImageView iv = (LinearLayout) findViewById(R.id.left);
int width = display.getWidth(); // ((display.getWidth()*20)/100)
int height = display.getHeight();// ((display.getHeight()*30)/100)
LinearLayout.LayoutParams parms = new LinearLayout.LayoutParams(width,height);
iv.setLayoutParams(parms);
hope use full to you.
I used an extension to UIViewController and a struct to make sure that my current view is presented from the favourites
1.Struct for a global Bool
struct PresentedFromFavourites {
static var comingFromFav = false}
2.UIVeiwController extension: presented modally as in the second option by "stefandouganhyde - Option 2 " and solving the back
extension UIViewController {
func returnToFavourites()
{
// you return to the storyboard wanted by changing the name
let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
let mainNavigationController = storyBoard.instantiateViewController(withIdentifier: "HomeNav") as! UINavigationController
// Set animated to false
let favViewController = storyBoard.instantiateViewController(withIdentifier: "Favourites")
self.present(mainNavigationController, animated: false, completion: {
mainNavigationController.pushViewController(favViewController, animated: false)
})
}
// call this function in viewDidLoad()
//
func addBackToFavouritesButton()
{
if PresentedFromFavourites.comingFromFav
{
//Create a button
// I found this good for most size classes
let buttonHeight = (self.navigationController?.navigationBar.frame.size.height)! - 15
let rect = CGRect(x: 2, y: 8, width: buttonHeight, height: buttonHeight)
let aButton = UIButton(frame: rect)
// Down a back arrow image from icon8 for free and add it to your image assets
aButton.setImage(#imageLiteral(resourceName: "backArrow"), for: .normal)
aButton.backgroundColor = UIColor.clear
aButton.addTarget(self, action:#selector(self.returnToFavourites), for: .touchUpInside)
self.navigationController?.navigationBar.addSubview(aButton)
PresentedFromFavourites.comingFromFav = false
}
}}
Here's your expected snippet which gives you the array of all the matched values -
var windowArray = new Array ("item","thing","id-3-text","class");_x000D_
_x000D_
var result = [];_x000D_
windowArray.forEach(val => {_x000D_
if(val && val.includes('id-')) {_x000D_
result.push(val);_x000D_
}_x000D_
});_x000D_
_x000D_
console.log(result);
_x000D_
$resource("../rest/api"}).get();
returns an object.
$resource("../rest/api").query();
returns an array.
You must use :
return $resource('../rest/api.php?method=getTask&q=*').query();
lapsList() {
return this.state.laps.map((data) => {
return (
<View><Text>{data.time}</Text></View>
)
})
}
You forgot to return the map. this code will resolve the issue.
The OP's question is answered well already, but the title is just broad enough that I think it benefits from the following primer:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace consolePlay
{
class Program
{
static void Main(string[] args)
{
Program.test(new DateTime());
Program.test(null);
//Program.test(); // <<< Error.
// "No overload for method 'test' takes 0 arguments"
// So don't mistake nullable to be optional.
Console.WriteLine("Done. Return to quit");
Console.Read();
}
static public void test(DateTime? dteIn)
{
Console.WriteLine("#" + dteIn.ToString() + "#");
}
}
}
output:
#1/1/0001 12:00:00 AM#
##
Done. Return to quit
if you want to access this programatically, you can do it by figuring out the version of eclipse\plugins\org.eclipse.platform_ plugin
String platformFile = <the above file>; //actually directory
versionPattern = Pattern.compile("\\d\\.\\d\\.\\d");
Matcher m = versionPattern.matcher(platformFile);
return m.group();
The link to the help page is the same for python 2.6 and as far as I know there was no change in the csv module since 2.5 (besides bug fixes). Here is the code that just works without any encoding/decoding (file da.csv contains the same data as the variable data). I assume that your file should be read correctly without any conversions.
test.py:
## -*- coding: utf-8 -*-
#
# NOTE: this first line is important for the version b) read from a string(unicode) variable
#
import csv
data = \
"""0665000FS10120684,SD1200IS,Appareil photo numérique PowerShot de 10 Mpx de Canon avec trépied (SD1200IS) - Bleu
0665000FS10120689,SD1200IS,Appareil photo numérique PowerShot de 10 Mpx de Canon avec trépied (SD1200IS) - Gris
0665000FS10120687,SD1200IS,Appareil photo numérique PowerShot de 10 Mpx de Canon avec trépied (SD1200IS) - Vert"""
# a) read from a file
print 'reading from a file:'
for (f1, f2, f3) in csv.reader(open('da.csv'), dialect=csv.excel):
print (f1, f2, f3)
# b) read from a string(unicode) variable
print 'reading from a list of strings:'
reader = csv.reader(data.split('\n'), dialect=csv.excel)
for (f1, f2, f3) in reader:
print (f1, f2, f3)
da.csv:
0665000FS10120684,SD1200IS,Appareil photo numérique PowerShot de 10 Mpx de Canon avec trépied (SD1200IS) - Bleu
0665000FS10120689,SD1200IS,Appareil photo numérique PowerShot de 10 Mpx de Canon avec trépied (SD1200IS) - Gris
0665000FS10120687,SD1200IS,Appareil photo numérique PowerShot de 10 Mpx de Canon avec trépied (SD1200IS) - Vert
The easier is add [0]
- select first value of list with one element:
dfb = df[df['A']==5].index.values.astype(int)[0]
dfbb = df[df['A']==8].index.values.astype(int)[0]
dfb = int(df[df['A']==5].index[0])
dfbb = int(df[df['A']==8].index[0])
But if possible some values not match, error is raised, because first value not exist.
Solution is use next
with iter
for get default parameetr if values not matched:
dfb = next(iter(df[df['A']==5].index), 'no match')
print (dfb)
4
dfb = next(iter(df[df['A']==50].index), 'no match')
print (dfb)
no match
Then it seems need substract 1
:
print (df.loc[dfb:dfbb-1,'B'])
4 0.894525
5 0.978174
6 0.859449
Name: B, dtype: float64
Another solution with boolean indexing
or query
:
print (df[(df['A'] >= 5) & (df['A'] < 8)])
A B
4 5 0.894525
5 6 0.978174
6 7 0.859449
print (df.loc[(df['A'] >= 5) & (df['A'] < 8), 'B'])
4 0.894525
5 0.978174
6 0.859449
Name: B, dtype: float64
print (df.query('A >= 5 and A < 8'))
A B
4 5 0.894525
5 6 0.978174
6 7 0.859449
Update: I completely rewrote this answer. The old code is still there, at the bottom, but I don't recommend it.
There are two main ways you can get access GET
variables:
$_GET
array (associative array).location
object.With PHP, you can just make a "template", which goes something like this:
<script type="text/javascript">
var $_GET = JSON.parse("<?php echo json_encode($_GET); ?>");
</script>
However, I think the mixture of languages here is sloppy, and should be avoided where possible. I can't really think of any good reasons to mix data between PHP and JavaScript anyway.
It really boils down to this:
Since we're talking about $_GET
here (or at least I assumed we were when I wrote the original answer), you should get it via JavaScript.
In the original answer, I had two methods for getting the query string, but it was too messy and error-prone. Those are now at the bottom of this answer.
Anyways, I designed a nice little "class" for getting the query string (actually an object constructor, see the relevant section from MDN's OOP article):
function QuerystringTable(_url){
// private
var url = _url,
table = {};
function buildTable(){
getQuerystring().split('&').filter(validatePair).map(parsePair);
}
function parsePair(pair){
var splitPair = pair.split('='),
key = decodeURIComponent(splitPair[0]),
value = decodeURIComponent(splitPair[1]);
table[key] = value;
}
function validatePair(pair){
var splitPair = pair.split('=');
return !!splitPair[0] && !!splitPair[1];
}
function validateUrl(){
if(typeof url !== "string"){
throw "QuerystringTable() :: <string url>: expected string, got " + typeof url;
}
if(url == ""){
throw "QuerystringTable() :: Empty string given for argument <string url>";
}
}
// public
function getKeys(){
return Object.keys(table);
}
function getQuerystring(){
var string;
validateUrl();
string = url.split('?')[1];
if(!string){
string = url;
}
return string;
}
function getValue(key){
var match = table[key] || null;
if(!match){
return "undefined";
}
return match;
}
buildTable();
this.getKeys = getKeys;
this.getQuerystring = getQuerystring;
this.getValue = getValue;
}
function main(){_x000D_
var imaginaryUrl = "http://example.com/webapp/?search=how%20to%20use%20Google&the_answer=42",_x000D_
qs = new QuerystringTable(imaginaryUrl);_x000D_
_x000D_
urlbox.innerHTML = "url: " + imaginaryUrl;_x000D_
_x000D_
logButton(_x000D_
"qs.getKeys()",_x000D_
qs.getKeys()_x000D_
.map(arrowify)_x000D_
.join("\n")_x000D_
);_x000D_
_x000D_
logButton(_x000D_
'qs.getValue("search")',_x000D_
qs.getValue("search")_x000D_
.arrowify()_x000D_
);_x000D_
_x000D_
logButton(_x000D_
'qs.getValue("the_answer")',_x000D_
qs.getValue("the_answer")_x000D_
.arrowify()_x000D_
);_x000D_
_x000D_
logButton(_x000D_
"qs.getQuerystring()",_x000D_
qs.getQuerystring()_x000D_
.arrowify()_x000D_
);_x000D_
}_x000D_
_x000D_
function arrowify(str){_x000D_
return " -> " + str;_x000D_
}_x000D_
_x000D_
String.prototype.arrowify = function(){_x000D_
return arrowify(this);_x000D_
}_x000D_
_x000D_
function log(msg){_x000D_
txt.value += msg + '\n';_x000D_
txt.scrollTop = txt.scrollHeight;_x000D_
}_x000D_
_x000D_
function logButton(name, output){_x000D_
var el = document.createElement("button");_x000D_
_x000D_
el.innerHTML = name;_x000D_
_x000D_
el.onclick = function(){_x000D_
log(name);_x000D_
log(output);_x000D_
log("- - - -");_x000D_
}_x000D_
_x000D_
buttonContainer.appendChild(el);_x000D_
}_x000D_
_x000D_
function QuerystringTable(_url){_x000D_
// private_x000D_
var url = _url,_x000D_
table = {};_x000D_
_x000D_
function buildTable(){_x000D_
getQuerystring().split('&').filter(validatePair).map(parsePair);_x000D_
}_x000D_
_x000D_
function parsePair(pair){_x000D_
var splitPair = pair.split('='),_x000D_
key = decodeURIComponent(splitPair[0]),_x000D_
value = decodeURIComponent(splitPair[1]);_x000D_
_x000D_
table[key] = value;_x000D_
}_x000D_
_x000D_
function validatePair(pair){_x000D_
var splitPair = pair.split('=');_x000D_
_x000D_
return !!splitPair[0] && !!splitPair[1];_x000D_
}_x000D_
_x000D_
function validateUrl(){_x000D_
if(typeof url !== "string"){_x000D_
throw "QuerystringTable() :: <string url>: expected string, got " + typeof url;_x000D_
}_x000D_
_x000D_
if(url == ""){_x000D_
throw "QuerystringTable() :: Empty string given for argument <string url>";_x000D_
}_x000D_
}_x000D_
_x000D_
// public_x000D_
function getKeys(){_x000D_
return Object.keys(table);_x000D_
}_x000D_
_x000D_
function getQuerystring(){_x000D_
var string;_x000D_
_x000D_
validateUrl();_x000D_
string = url.split('?')[1];_x000D_
_x000D_
if(!string){_x000D_
string = url;_x000D_
}_x000D_
_x000D_
return string;_x000D_
}_x000D_
_x000D_
function getValue(key){_x000D_
var match = table[key] || null;_x000D_
_x000D_
if(!match){_x000D_
return "undefined";_x000D_
}_x000D_
_x000D_
return match;_x000D_
}_x000D_
_x000D_
buildTable();_x000D_
this.getKeys = getKeys;_x000D_
this.getQuerystring = getQuerystring;_x000D_
this.getValue = getValue;_x000D_
}_x000D_
_x000D_
main();
_x000D_
#urlbox{_x000D_
width: 100%;_x000D_
padding: 5px;_x000D_
margin: 10px auto;_x000D_
font: 12px monospace;_x000D_
background: #fff;_x000D_
color: #000;_x000D_
}_x000D_
_x000D_
#txt{_x000D_
width: 100%;_x000D_
height: 200px;_x000D_
padding: 5px;_x000D_
margin: 10px auto;_x000D_
resize: none;_x000D_
border: none;_x000D_
background: #fff;_x000D_
color: #000;_x000D_
displaY:block;_x000D_
}_x000D_
_x000D_
button{_x000D_
padding: 5px;_x000D_
margin: 10px;_x000D_
width: 200px;_x000D_
background: #eee;_x000D_
color: #000;_x000D_
border:1px solid #ccc;_x000D_
display: block;_x000D_
}_x000D_
_x000D_
button:hover{_x000D_
background: #fff;_x000D_
cursor: pointer;_x000D_
}
_x000D_
<p id="urlbox"></p>_x000D_
<textarea id="txt" disabled="true"></textarea>_x000D_
<div id="buttonContainer"></div>
_x000D_
It's much more robust, doesn't rely on regex, combines the best parts of both the previous approaches, and will validate your input. You can give it query strings other than the one from the url, and it will fail loudly if you give bad input. Moreover, like a good object/module, it doesn't know or care about anything outside of the class definition, so it can be used with anything.
The constructor automatically populates its internal table and decodes each string such that ...?foo%3F=bar%20baz&ersand=this%20thing%3A%20%26
, for example, will internally become:
{
"foo?" : "bar baz",
"ampersand" : "this thing: &"
}
All the work is done for you at instantiation.
Here's how to use it:
var qst = new QuerystringTable(location.href);
qst.getKeys() // returns an array of keys
qst.getValue("foo") // returns the value of foo, or "undefined" if none.
qst.getQuerystring() // returns the querystring
That's much better. And leaving the url part up to the programmer both allows this to be used in non-browser environments (tested in both node.js
and a browser
), and allows for a scenario where you might want to compare two different query strings.
var qs1 = new QuerystringTable(/* url #1 */),
qs2 = new QuerystringTable(/* url #2 */);
if (qs1.getValue("vid") !== qs2.getValue("vid")){
// Do something
}
As I said above, there were two messy methods that are referenced by this answer. I'm keeping them here so readers don't have to hunt through revision history to find them. Here they are:
1)
Direct parse by function
. This just grabs the url and parses it directly with RegEx$_GET=function(key,def){ try{ return RegExp('[?&;]'+key+'=([^?&#;]*)').exec(location.href)[1] }catch(e){ return def||'' } }
Easy peasy, if the query string is
?ducksays=quack&bearsays=growl
, then$_GET('ducksays')
should returnquack
and$_GET('bearsays')
should returngrowl
Now you probably instantly notice that the syntax is different as a result of being a function. Instead of
$_GET[key]
, it is$_GET(key)
. Well, I thought of that :)Here comes the second method:
2)
Object Build by Loop
onload=function(){ $_GET={}//the lack of 'var' makes this global str=location.search.split('&')//not '?', this will be dealt with later for(i in str){ REG=RegExp('([^?&#;]*)=([^?&#;]*)').exec(str[i]) $_GET[REG[1]]=REG[2] } }
Behold! $_GET is now an object containing an index of every object in the url, so now this is possible:
$_GET['ducksays']//returns 'quack'
AND this is possible
for(i in $_GET){ document.write(i+': '+$_GET[i]+'<hr>') }
This is definitely not possible with the function.
Again, I don't recommend this old code. It's badly written.
The best way to do this is with boolean masking:
In [56]: df
Out[56]:
line_date daysago line_race rating raw wrating
0 2007-03-31 62 11 56 1.000 56.000
1 2007-03-10 83 11 67 1.000 67.000
2 2007-02-10 111 9 66 1.000 66.000
3 2007-01-13 139 10 83 0.881 73.096
4 2006-12-23 160 10 88 0.793 69.787
5 2006-11-09 204 9 52 0.637 33.106
6 2006-10-22 222 8 66 0.582 38.408
7 2006-09-29 245 9 70 0.519 36.318
8 2006-09-16 258 11 68 0.486 33.063
9 2006-08-30 275 8 72 0.447 32.160
10 2006-02-11 475 5 65 0.165 10.698
11 2006-01-13 504 0 70 0.142 9.969
12 2006-01-02 515 0 64 0.135 8.627
13 2005-12-06 542 0 70 0.118 8.246
14 2005-11-29 549 0 70 0.114 7.963
15 2005-11-22 556 0 -1 0.110 -0.110
16 2005-11-01 577 0 -1 0.099 -0.099
17 2005-10-20 589 0 -1 0.093 -0.093
18 2005-09-27 612 0 -1 0.083 -0.083
19 2005-09-07 632 0 -1 0.075 -0.075
20 2005-06-12 719 0 69 0.049 3.360
21 2005-05-29 733 0 -1 0.045 -0.045
22 2005-05-02 760 0 -1 0.040 -0.040
23 2005-04-02 790 0 -1 0.034 -0.034
24 2005-03-13 810 0 -1 0.031 -0.031
25 2004-11-09 934 0 -1 0.017 -0.017
In [57]: df[df.line_race != 0]
Out[57]:
line_date daysago line_race rating raw wrating
0 2007-03-31 62 11 56 1.000 56.000
1 2007-03-10 83 11 67 1.000 67.000
2 2007-02-10 111 9 66 1.000 66.000
3 2007-01-13 139 10 83 0.881 73.096
4 2006-12-23 160 10 88 0.793 69.787
5 2006-11-09 204 9 52 0.637 33.106
6 2006-10-22 222 8 66 0.582 38.408
7 2006-09-29 245 9 70 0.519 36.318
8 2006-09-16 258 11 68 0.486 33.063
9 2006-08-30 275 8 72 0.447 32.160
10 2006-02-11 475 5 65 0.165 10.698
UPDATE: Now that pandas 0.13 is out, another way to do this is df.query('line_race != 0')
.
Answered here: Convert an image to grayscale in HTML/CSS
You don't even need to use two images which sounds like a pain or an image manipulation library, you can do it with cross browser support (current versions) and just use CSS. This is a progressive enhancement approach which just falls back to color versions on older browsers:
img {
filter: url(filters.svg#grayscale);
/* Firefox 3.5+ */
filter: gray;
/* IE6-9 */
-webkit-filter: grayscale(1);
/* Google Chrome & Safari 6+ */
}
img:hover {
filter: none;
-webkit-filter: none;
}
and filters.svg file like this:
<svg xmlns="http://www.w3.org/2000/svg">
<filter id="grayscale">
<feColorMatrix type="matrix" values="0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0" />
</filter>
</svg>
For those using npm to install packages, you can install jquery via npm install jquery
and then use elixir to compile jquery and your other npm packages into one file (e.g. vendor.js). Here's a sample gulpfile.js
var elixir = require('laravel-elixir');
elixir(function(mix) {
mix
.scripts([
'jquery/dist/jquery.min.js',
// list your other npm packages here
],
'public/js/vendor.js', // 2nd param is the output file
'node_modules') // 3rd param is saying "look in /node_modules/ for these scripts"
.scripts([
'scripts.js' // your custom js file located in default location: /resources/assets/js/
], 'public/js/app.js') // looks in default location since there's no 3rd param
.version([ // optionally append versioning string to filename
'js/vendor.js', // compiled files will be in /public/build/js/
'js/app.js'
]);
});
With GNU Make, you can use shell
and eval
to store, run, and assign output from arbitrary command line invocations. The difference between the example below and those which use :=
is the :=
assignment happens once (when it is encountered) and for all. Recursively expanded variables set with =
are a bit more "lazy"; references to other variables remain until the variable itself is referenced, and the subsequent recursive expansion takes place each time the variable is referenced, which is desirable for making "consistent, callable, snippets". See the manual on setting variables for more info.
# Generate a random number.
# This is not run initially.
GENERATE_ID = $(shell od -vAn -N2 -tu2 < /dev/urandom)
# Generate a random number, and assign it to MY_ID
# This is not run initially.
SET_ID = $(eval MY_ID=$(GENERATE_ID))
# You can use .PHONY to tell make that we aren't building a target output file
.PHONY: mytarget
mytarget:
# This is empty when we begin
@echo $(MY_ID)
# This recursively expands SET_ID, which calls the shell command and sets MY_ID
$(SET_ID)
# This will now be a random number
@echo $(MY_ID)
# Recursively expand SET_ID again, which calls the shell command (again) and sets MY_ID (again)
$(SET_ID)
# This will now be a different random number
@echo $(MY_ID)
You call nextElement()
twice in your loop. This call moves the enumeration pointer forward.
You should modify your code like the following:
while (e.hasMoreElements()) {
String param = e.nextElement();
System.out.println(param);
}
There are a few ways to go about this. One option would be to use inputfile.read()
instead of inputfile.readlines()
- you'd need to write separate code to strip the first four lines, but if you want the final output as a single string anyway, this might make the most sense.
A second, simpler option would be to rejoin the strings after striping the first four lines with my_text = ''.join(my_text)
. This is a little inefficient, but if speed isn't a major concern, the code will be simplest.
Finally, if you actually want the output as a list of strings instead of a single string, you can just modify your data parser to iterate over the list. That might looks something like this:
def data_parser(lines, dic):
for i, j in dic.iteritems():
for (k, line) in enumerate(lines):
lines[k] = line.replace(i, j)
return lines
Here's a solution that keeps things within a dplyr pipe chain. You sort the data in advance, and then using mutate_at to convert to a factor. I've modified the data slightly to show how this solution can be applied generally, given data that can be sensibly sorted:
# the data
temp <- data.frame(type=rep(c("T", "F", "P"), 4),
size=rep(c("50%", "100%", "200%", "150%"), each=3), # cannot sort this
size_num = rep(c(.5, 1, 2, 1.5), each=3), # can sort this
amount=c(48.4, 48.1, 46.8,
25.9, 26.0, 24.9,
20.8, 21.5, 16.5,
21.1, 21.4, 20.1))
temp %>%
arrange(size_num) %>% # sort
mutate_at(vars(size), funs(factor(., levels=unique(.)))) %>% # convert to factor
ggplot() +
geom_bar(aes(x = type, y=amount, fill=type),
position="dodge", stat="identity") +
facet_grid(~ size)
You can apply this solution to arrange the bars within facets, too, though you can only choose a single, preferred order:
temp %>%
arrange(size_num) %>%
mutate_at(vars(size), funs(factor(., levels=unique(.)))) %>%
arrange(desc(amount)) %>%
mutate_at(vars(type), funs(factor(., levels=unique(.)))) %>%
ggplot() +
geom_bar(aes(x = type, y=amount, fill=type),
position="dodge", stat="identity") +
facet_grid(~ size)
ggplot() +
geom_bar(aes(x = type, y=amount, fill=type),
position="dodge", stat="identity") +
facet_grid(~ size)
a simple hack with the first answer
var getLocation = function(href=window.location.href) {
var l = document.createElement("a");
l.href = href;
return l;
};
this can used even without argument to figure out the current hostname getLocation().hostname will give current hostname
Yes remove the commas:
parseFloat(yournumber.replace(/,/g, ''));
Note: pandas.stats
has been removed with 0.20.0
It's possible to do this with pandas.stats.ols
:
>>> from pandas.stats.api import ols
>>> df = pd.DataFrame({"A": [10,20,30,40,50], "B": [20, 30, 10, 40, 50], "C": [32, 234, 23, 23, 42523]})
>>> res = ols(y=df['A'], x=df[['B','C']])
>>> res
-------------------------Summary of Regression Analysis-------------------------
Formula: Y ~ <B> + <C> + <intercept>
Number of Observations: 5
Number of Degrees of Freedom: 3
R-squared: 0.5789
Adj R-squared: 0.1577
Rmse: 14.5108
F-stat (2, 2): 1.3746, p-value: 0.4211
Degrees of Freedom: model 2, resid 2
-----------------------Summary of Estimated Coefficients------------------------
Variable Coef Std Err t-stat p-value CI 2.5% CI 97.5%
--------------------------------------------------------------------------------
B 0.4012 0.6497 0.62 0.5999 -0.8723 1.6746
C 0.0004 0.0005 0.65 0.5826 -0.0007 0.0014
intercept 14.9525 17.7643 0.84 0.4886 -19.8655 49.7705
---------------------------------End of Summary---------------------------------
Note that you need to have statsmodels
package installed, it is used internally by the pandas.stats.ols
function.
We can use odd and even CSS rules and jQuery method for alternate row colors
Using CSS
table tr:nth-child(odd) td{
background:#ccc;
}
table tr:nth-child(even) td{
background:#fff;
}
Using jQuery
$(document).ready(function()
{
$("table tr:odd").css("background", "#ccc");
$("table tr:even").css("background", "#fff");
});
table tr:nth-child(odd) td{_x000D_
background:#ccc;_x000D_
}_x000D_
table tr:nth-child(even) td{_x000D_
background:#fff;_x000D_
}
_x000D_
<table>_x000D_
<tr>_x000D_
<td>One</td>_x000D_
<td>one</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Two</td>_x000D_
<td>two</td>_x000D_
</tr>_x000D_
</table>
_x000D_
A tag is used to label and mark a specific commit in the history.
It is usually used to mark release points (eg. v1.0, etc.).
Although a tag may appear similar to a branch, a tag, however, does not change. It points directly to a specific commit in the history and will not change unless explicitly updated.
You will not be able to checkout the tags if it's not locally in your repository so first, you have to fetch
the tags to your local repository.
First, make sure that the tag exists locally by doing
# --all will fetch all the remotes.
# --tags will fetch all tags as well
$ git fetch --all --tags --prune
Then check out the tag by running
$ git checkout tags/<tag_name> -b <branch_name>
Instead of origin
use the tags/
prefix.
In this sample you have 2 tags version 1.0 & version 1.1 you can check them out with any of the following:
$ git checkout A ...
$ git checkout version 1.0 ...
$ git checkout tags/version 1.0 ...
All of the above will do the same since the tag is only a pointer to a given commit.
origin: https://backlog.com/git-tutorial/img/post/stepup/capture_stepup4_1_1.png
# list all tags
$ git tag
# list all tags with given pattern ex: v-
$ git tag --list 'v-*'
There are 2 ways to create a tag:
# lightweight tag
$ git tag
# annotated tag
$ git tag -a
The difference between the 2 is that when creating an annotated tag you can add metadata as you have in a git commit:
name, e-mail, date, comment & signature
$ git tag -d <tag_name>
Deleted tag <tag_name> (was 000000)
Note: If you try to delete a non existig Git tag, there will be see the following error:
$ git tag -d <tag_name>
error: tag '<tag_name>' not found.
# Delete a tag from the server with push tags
$ git push --delete origin <tag name>
In order to grab the content of a given tag, you can use the checkout
command. As explained above tags are like any other commits so we can use checkout
and instead of using the SHA-1 simply replacing it with the tag_name
Option 1:
# Update the local git repo with the latest tags from all remotes
$ git fetch --all
# checkout the specific tag
$ git checkout tags/<tag> -b <branch>
Option 2:
Since git supports shallow clone by adding the --branch
to the clone command we can use the tag name instead of the branch name. Git knows how to "translate" the given SHA-1 to the relevant commit
# Clone a specific tag name using git clone
$ git clone <url> --branch=<tag_name>
git clone --branch=
--branch
can also take tags and detaches the HEAD at that commit in the resulting repository.
git push --tags
To push all tags:
# Push all tags
$ git push --tags
refs/tags
instead of just specifying the <tagname>
.Why?
refs/tags
since sometimes tags can have the same name as your branches and a simple git push will push the branch instead of the tagTo push annotated tags and current history chain tags use:
git push --follow-tags
This flag --follow-tags
pushes both commits and only tags that are both:
From Git 2.4 you can set it using configuration
$ git config --global push.followTags true
In practical: book.xml
<bookstore>
<book category="cooking">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
</bookstore>
start element:abc
, end element:abc
.start element: bookstore
start element: book with an attribute category equal to cooking
start element: title with an attribute lang equal to en
Text node, with data equal to Everyday Italian
....
end element: title
.....
end element: book
end element: bookstore
Need to use top comment but also pay attention to nextLine(). To eliminate this error only call
sc.nextLine()
Once from inside your while loop
while (sc.hasNextLine()) {sc.nextLine()...}
You are using while to look ahead only 1 line. Then using sc.nextLine() to read 2 lines ahead of the single line you asked the while loop to look ahead.
Also change the multiple IF statements to IF, ELSE to avoid reading more than one line also.
You need to tell Python to use floating point values, not integers. You can do that simply by using a decimal point yourself in the inputs:
>>> 4/100.0
0.040000000000000001
The changelog is sloppily worded. from __future__ import absolute_import
does not care about whether something is part of the standard library, and import string
will not always give you the standard-library module with absolute imports on.
from __future__ import absolute_import
means that if you import string
, Python will always look for a top-level string
module, rather than current_package.string
. However, it does not affect the logic Python uses to decide what file is the string
module. When you do
python pkg/script.py
pkg/script.py
doesn't look like part of a package to Python. Following the normal procedures, the pkg
directory is added to the path, and all .py
files in the pkg
directory look like top-level modules. import string
finds pkg/string.py
not because it's doing a relative import, but because pkg/string.py
appears to be the top-level module string
. The fact that this isn't the standard-library string
module doesn't come up.
To run the file as part of the pkg
package, you could do
python -m pkg.script
In this case, the pkg
directory will not be added to the path. However, the current directory will be added to the path.
You can also add some boilerplate to pkg/script.py
to make Python treat it as part of the pkg
package even when run as a file:
if __name__ == '__main__' and __package__ is None:
__package__ = 'pkg'
However, this won't affect sys.path
. You'll need some additional handling to remove the pkg
directory from the path, and if pkg
's parent directory isn't on the path, you'll need to stick that on the path too.
I could do that following the steps:
axios.js
mock fileThe mock will happen automatically
Example of the mock module:
module.exports = {
get: jest.fn((url) => {
if (url === '/something') {
return Promise.resolve({
data: 'data'
});
}
}),
post: jest.fn((url) => {
if (url === '/something') {
return Promise.resolve({
data: 'data'
});
}
if (url === '/something2') {
return Promise.resolve({
data: 'data2'
});
}
}),
create: jest.fn(function () {
return this;
})
};
If you know the file is in your current directory, I would use:
ls -lt | head
This lists your most recently modified files and directories in order. In fact, I use it so much I have it aliased to 'lh'.
I clear my screen using is function that
var clear_body = function (){
var lista = document.body.childNodes;
for (var i = lista.length - 1; i >= 0 ;i--){
document.body.removeChild(lista[i])
}
}
#import "UIButton+My.h"
#import <QuartzCore/QuartzCore.h>
@implementation UIButton (My)
-(void)fade :(BOOL)enable{
self.enabled=enable;//
self.alpha=enable?1.0:0.5;
}
@end
.h:
#import <UIKit/UIKit.h>
@interface UIButton (My)
-(void)fade :(BOOL)enable;
@end
You can type:
grep -v -f A1 A2
Um, why not just:
>>>> import os
>>>> os.path.join(dir_name, base_filename + "." + format)
'/home/me/dev/my_reports/daily_report.pdf'
If you are trying to reference an android style, you need to put "android:" in there
android:theme="@android:style/Theme.Black"
If that doesn't solve it, you may need to edit your question with the full manifest file, so we can see more details
the "title"
attribute will be used as the text for tooltip by the browser, if you want to apply style to it consider using some plugins
If you are using thousand separator for Integer data type use 1.
String.format("%,d\n", 58625) and output will be 58,625
pydoc is fantastic for generating documentation, but the documentation has to be written in the first place. You must have docstrings in your source code as was mentioned by RocketDonkey in the comments:
"""
This example module shows various types of documentation available for use
with pydoc. To generate HTML documentation for this module issue the
command:
pydoc -w foo
"""
class Foo(object):
"""
Foo encapsulates a name and an age.
"""
def __init__(self, name, age):
"""
Construct a new 'Foo' object.
:param name: The name of foo
:param age: The ageof foo
:return: returns nothing
"""
self.name = name
self.age = age
def bar(baz):
"""
Prints baz to the display.
"""
print baz
if __name__ == '__main__':
f = Foo('John Doe', 42)
bar("hello world")
The first docstring provides instructions for creating the documentation with pydoc. There are examples of different types of docstrings so you can see how they look when generated with pydoc.
There are 2 types of Firebase push-notifications:
1- Notification message(Display message) ->
-- 1.1 If you choose this variant, the OS will create it self a notification if app is in Background and will pass the data in the intent
. Then it's up to the client to handle this data.
-- 1.2 If the app is in Foreground then the notification it will be received via callback-function
in the FirebaseMessagingService
and it's up to the client to handle it.
2- Data messages(up to 4k data) -> These messages are used to send only data to the client(silently) and it's up to the client to handle it for both cases background/foreground via callback-function in FirebaseMessagingService
This is according official docs:https://firebase.google.com/docs/cloud-messaging/concept-options
Executable file needs a main function. See below hello world demo.
#include <stdio.h>
int main(void)
{
printf("Hello world!\n");
return 0;
}
As you can see there is a main function. if you don't have this main function, ld will report "undefined reference to main' "
check my result:
$ cat es3.c
#include <stdio.h>
int main(void)
{
printf("Hello world!\n");
return 0;
}
$ gcc -Wall -g -c es3.c
$ gcc -Wall -g es3.o -o es3
~$ ./es3
Hello world!
please use $ objdump -t es3.o
to check if there is a main symbol. Below is my result.
$ objdump -t es3.o
es3.o: file format elf32-i386
SYMBOL TABLE:
00000000 l df *ABS* 00000000 es3.c
00000000 l d .text 00000000 .text
00000000 l d .data 00000000 .data
00000000 l d .bss 00000000 .bss
00000000 l d .debug_abbrev 00000000 .debug_abbrev
00000000 l d .debug_info 00000000 .debug_info
00000000 l d .debug_line 00000000 .debug_line
00000000 l d .rodata 00000000 .rodata
00000000 l d .debug_frame 00000000 .debug_frame
00000000 l d .debug_loc 00000000 .debug_loc
00000000 l d .debug_pubnames 00000000 .debug_pubnames
00000000 l d .debug_aranges 00000000 .debug_aranges
00000000 l d .debug_str 00000000 .debug_str
00000000 l d .note.GNU-stack 00000000 .note.GNU-stack
00000000 l d .comment 00000000 .comment
00000000 g F .text 0000002b main
00000000 *UND* 00000000 puts
For Debian/Ubuntu:
sudo apt-get install php7.0-mbstring
Import-Csv $path | Foreach-Object {
foreach ($property in $_.PSObject.Properties)
{
doSomething $property.Name, $property.Value
}
}
There is a difference between what JSON.parse() and eval() will accept. Try eval on this:
var x = "{\"shoppingCartName\":\"shopping_cart:2000\"}"
eval(x) //won't work
JSON.parse(x) //does work
See this example.
You can check it by connecting MySQL through the command prompt.
I think that your MySQL Database is blocked by firewall. Once stop all the services of antivirus software you have on your computer, then try to connect.
I faced this problem as well and rectified by blocking all firewalls..
Perhaps use plt.annotate:
import numpy as np
import matplotlib.pyplot as plt
N = 10
data = np.random.random((N, 4))
labels = ['point{0}'.format(i) for i in range(N)]
plt.subplots_adjust(bottom = 0.1)
plt.scatter(
data[:, 0], data[:, 1], marker='o', c=data[:, 2], s=data[:, 3] * 1500,
cmap=plt.get_cmap('Spectral'))
for label, x, y in zip(labels, data[:, 0], data[:, 1]):
plt.annotate(
label,
xy=(x, y), xytext=(-20, 20),
textcoords='offset points', ha='right', va='bottom',
bbox=dict(boxstyle='round,pad=0.5', fc='yellow', alpha=0.5),
arrowprops=dict(arrowstyle = '->', connectionstyle='arc3,rad=0'))
plt.show()
$('input#edit-keys-1').blur(function(){
tmpval = $(this).val();
if(tmpval == '') {
$(this).addClass('empty');
$(this).removeClass('not-empty');
} else {
$(this).addClass('not-empty');
$(this).removeClass('empty');
}
});
in jQuery. I added a class and styled with css.
.empty { background:none; }
Wanted to share my solution where Django Forms are not being used. I have multiple form elements on a single page and I want to use a single view to manage all the POST requests from all the forms.
What I've done is I have introduced an invisible input tag so that I can pass a parameter to the views to check which form has been submitted.
<form method="post" id="formOne">
{% csrf_token %}
<input type="hidden" name="form_type" value="formOne">
.....
</form>
.....
<form method="post" id="formTwo">
{% csrf_token %}
<input type="hidden" name="form_type" value="formTwo">
....
</form>
views.py
def handlemultipleforms(request, template="handle/multiple_forms.html"):
"""
Handle Multiple <form></form> elements
"""
if request.method == 'POST':
if request.POST.get("form_type") == 'formOne':
#Handle Elements from first Form
elif request.POST.get("form_type") == 'formTwo':
#Handle Elements from second Form
If you only care about the space character (and not tabs or other whitespace characters) and only care about everything before the first space and everything after the first space, you can do it without a regular expression like this:
str.substr(0,str.indexOf(' ')); // "72"
str.substr(str.indexOf(' ')+1); // "tocirah sneab"
Note that if there is no space at all, then the first line will return an empty string and the second line will return the entire string. Be sure that is the behavior that you want in that situation (or that that situation will not arise).
Assert by exception message:
try {
MyAgent.getNameByNode("d");
} catch (Exception e) {
Assert.assertEquals("Failed to fetch data.", e.getMessage());
}
You can use Chocolatey to install cyg-get
and then install your packages with it.
For example:
choco install cyg-get
Then:
cyg-get install my-package
type which java
in terminal to show where it is installed.
Diffuse is my favourite but of course I am biased. :-) It is very easy to use:
$ diffuse "mine" "output" "theirs"
Diffuse is a small and simple text merge tool written in Python. With Diffuse, you can easily merge, edit, and review changes to your code. Diffuse is free software.
This really depends on what exactly you're trying to accomplish.
The System.ComponentModel.TypeDescriptor stuff can be used to add attributes to types, properties and object instances, and it has the limitation that you have to use it to retrieve those properties as well. If you're writing the code that consumes those attributes, and you can live within those limitations, then I'd definitely suggest it.
As far as I know, the PropertyGrid control and the visual studio design surface are the only things in the BCL that consume the TypeDescriptor stuff. In fact, that's how they do about half the things they really need to do.
I wanted something similar - a function that parses a string that can be passed as a parameter or piped.
I came up with a solution as below (works as #!/bin/sh
and as #!/bin/bash
)
#!/bin/sh
set -eu
my_func() {
local content=""
# if the first param is an empty string or is not set
if [ -z ${1+x} ]; then
# read content from a pipe if passed or from a user input if not passed
while read line; do content="${content}$line"; done < /dev/stdin
# first param was set (it may be an empty string)
else
content="$1"
fi
echo "Content: '$content'";
}
printf "0. $(my_func "")\n"
printf "1. $(my_func "one")\n"
printf "2. $(echo "two" | my_func)\n"
printf "3. $(my_func)\n"
printf "End\n"
Outputs:
0. Content: ''
1. Content: 'one'
2. Content: 'two'
typed text
3. Content: 'typed text'
End
For the last case (3.) you need to type, hit enter and CTRL+D to end the input.
When you alter column datatype
you need to change constraint key
for every database
alter table CompanyTransactions drop constraint [df__CompanyTr__Creat__0cdae408];
When the directory is deleted, the inode for that directory (and the inodes for its contents) are recycled. The pointer your shell has to that directory's inode (and its contents's inodes) are now no longer valid. When the directory is restored from backup, the old inodes are not (necessarily) reused; the directory and its contents are stored on random inodes. The only thing that stays the same is that the parent directory reuses the same name for the restored directory (because you told it to).
Now if you attempt to access the contents of the directory that your original shell is still pointing to, it communicates that request to the file system as a request for the original inode, which has since been recycled (and may even be in use for something entirely different now). So you get a stale file handle
message because you asked for some nonexistent data.
When you perform a cd
operation, the shell reevaluates the inode location of whatever destination you give it. Now that your shell knows the new inode for the directory (and the new inodes for its contents), future requests for its contents will be valid.
Since you are summing up some int values together, there is no need to use BigInteger. long
is enough for that. int
is 32 bits, while long
is 64 bits, that can contain the sum of all int values.
Add this line above you Query
SET IDENTITY_INSERT tbl_content ON
If you have any NamedQueries in your entity classes, then check the stack trace for compilation errors. A malformed query which cannot be compiled can cause failure to load the persistence context.
The fs-extra
module allows you to do this with it's move()
method. I already implemented it and it works well if you want to completely move a file from one directory to another - ie. removing the file from the source directory. Should work for most basic cases.
var fs = require('fs-extra')
fs.move('/tmp/somefile', '/tmp/does/not/exist/yet/somefile', function (err) {
if (err) return console.error(err)
console.log("success!")
})
This thread is misleading. Tried commenting on Lucas Ramadan's answer, but I don't have the right privileges yet, so I'll just put this here.
Batch normalization works best after the activation function, and here or here is why: it was developed to prevent internal covariate shift. Internal covariate shift occurs when the distribution of the activations of a layer shifts significantly throughout training. Batch normalization is used so that the distribution of the inputs (and these inputs are literally the result of an activation function) to a specific layer doesn't change over time due to parameter updates from each batch (or at least, allows it to change in an advantageous way). It uses batch statistics to do the normalizing, and then uses the batch normalization parameters (gamma and beta in the original paper) "to make sure that the transformation inserted in the network can represent the identity transform" (quote from original paper). But the point is that we're trying to normalize the inputs to a layer, so it should always go immediately before the next layer in the network. Whether or not that's after an activation function is dependent on the architecture in question.
I have converted the answer by Rafael Moreira. The credit goes to him. For those of you looking for the Swift version, here is the code:
func zoomToFitMapAnnotations(aMapView: MKMapView) {
guard aMapView.annotations.count > 0 else {
return
}
var topLeftCoord: CLLocationCoordinate2D = CLLocationCoordinate2D()
topLeftCoord.latitude = -90
topLeftCoord.longitude = 180
var bottomRightCoord: CLLocationCoordinate2D = CLLocationCoordinate2D()
bottomRightCoord.latitude = 90
bottomRightCoord.longitude = -180
for annotation: MKAnnotation in myMap.annotations as! [MKAnnotation]{
topLeftCoord.longitude = fmin(topLeftCoord.longitude, annotation.coordinate.longitude)
topLeftCoord.latitude = fmax(topLeftCoord.latitude, annotation.coordinate.latitude)
bottomRightCoord.longitude = fmax(bottomRightCoord.longitude, annotation.coordinate.longitude)
bottomRightCoord.latitude = fmin(bottomRightCoord.latitude, annotation.coordinate.latitude)
}
var region: MKCoordinateRegion = MKCoordinateRegion()
region.center.latitude = topLeftCoord.latitude - (topLeftCoord.latitude - bottomRightCoord.latitude) * 0.5
region.center.longitude = topLeftCoord.longitude + (bottomRightCoord.longitude - topLeftCoord.longitude) * 0.5
region.span.latitudeDelta = fabs(topLeftCoord.latitude - bottomRightCoord.latitude) * 1.4
region.span.longitudeDelta = fabs(bottomRightCoord.longitude - topLeftCoord.longitude) * 1.4
region = aMapView.regionThatFits(region)
myMap.setRegion(region, animated: true)
}
I had this problem several times, normally it can be solved by close-reopen Xcode.
I did delete derived data from Xcode organizer. It eventually works
All above solution is too good but here I am making reverse string using recursive programming.
This is helpful for who is looking recursive way of doing reverse string.
public class ReversString {
public static void main(String args[]) {
char s[] = "Dhiral Pandya".toCharArray();
String r = new String(reverse(0, s));
System.out.println(r);
}
public static char[] reverse(int i, char source[]) {
if (source.length / 2 == i) {
return source;
}
char t = source[i];
source[i] = source[source.length - 1 - i];
source[source.length - 1 - i] = t;
i++;
return reverse(i, source);
}
}
Regarding “thought leaders”: Linus emphatically advocates line wrapping for the full commit message:
[…] we use 72-character columns for word-wrapping, except for quoted material that has a specific line format.
The exceptions refers mainly to “non-prose” text, that is, text that was not typed by a human for the commit — for example, compiler error messages.
In the MSDN blog post Many Questions: switch on type is some information on why .NET does not provide switching on types.
As usual - workarounds always exists.
This one isn't mine, but unfortunately I have lost the source. It makes switching on types possible, but I personally think it's quite awkward (the dictionary idea is better):
public class Switch
{
public Switch(Object o)
{
Object = o;
}
public Object Object { get; private set; }
}
/// <summary>
/// Extensions, because otherwise casing fails on Switch==null
/// </summary>
public static class SwitchExtensions
{
public static Switch Case<T>(this Switch s, Action<T> a)
where T : class
{
return Case(s, o => true, a, false);
}
public static Switch Case<T>(this Switch s, Action<T> a,
bool fallThrough) where T : class
{
return Case(s, o => true, a, fallThrough);
}
public static Switch Case<T>(this Switch s,
Func<T, bool> c, Action<T> a) where T : class
{
return Case(s, c, a, false);
}
public static Switch Case<T>(this Switch s,
Func<T, bool> c, Action<T> a, bool fallThrough) where T : class
{
if (s == null)
{
return null;
}
T t = s.Object as T;
if (t != null)
{
if (c(t))
{
a(t);
return fallThrough ? s : null;
}
}
return s;
}
}
Usage:
new Switch(foo)
.Case<Fizz>
(action => { doingSomething = FirstMethodCall(); })
.Case<Buzz>
(action => { return false; })
As @Misha Moroshko has already posted himself, this works:
$("#mainTable").css("width", 100);
$("#mainTable").css("height", 200);
There's some advantage to this technique over @Nick Craver's accepted answer - you can also specifiy different units:
$("#mainTable").css("width", "100%");
So @Nick Craver's method might actually be the wrong choice for some users. From the jquery API (http://api.jquery.com/width/):
The difference between .css(width) and .width() is that the latter returns a unit-less pixel value (for example, 400) while the former returns a value with units intact (for example, 400px). The .width() method is recommended when an element's width needs to be used in a mathematical calculation.
UNIX_TIMESTAMP(ts1) - UNIX_TIMESTAMP(ts2)
If you want an unsigned difference, add an ABS()
around the expression.
Alternatively, you can use TIMEDIFF(ts1, ts2)
and then convert the time result to seconds with TIME_TO_SEC()
.
The answer did not work for me. I dont know how it got so many votes. Though it helped in pointing me in a direction.
This is the answer that worked for me:
foreach (var x in jobj)
{
var key = ((JProperty) (x)).Name;
var jvalue = ((JProperty)(x)).Value ;
}
The list of accepted environment variables on SSHD by default includes LC_*
. Thus:
LC_MY_BUILDN="1.2.3" ssh -o "SendEnv LC_MY_BUILDN" ssh-host 'echo $LC_MY_BUILDN'
1.2.3
if ('undefined' == typeof window.jQuery) {
// jQuery not present
} else {
// jQuery present
}
Left, Right and Below tabs were removed from Bootstrap 3, but you can add custom CSS to achieve this..
.tabs-below > .nav-tabs,
.tabs-right > .nav-tabs,
.tabs-left > .nav-tabs {
border-bottom: 0;
}
.tab-content > .tab-pane,
.pill-content > .pill-pane {
display: none;
}
.tab-content > .active,
.pill-content > .active {
display: block;
}
.tabs-below > .nav-tabs {
border-top: 1px solid #ddd;
}
.tabs-below > .nav-tabs > li {
margin-top: -1px;
margin-bottom: 0;
}
.tabs-below > .nav-tabs > li > a {
-webkit-border-radius: 0 0 4px 4px;
-moz-border-radius: 0 0 4px 4px;
border-radius: 0 0 4px 4px;
}
.tabs-below > .nav-tabs > li > a:hover,
.tabs-below > .nav-tabs > li > a:focus {
border-top-color: #ddd;
border-bottom-color: transparent;
}
.tabs-below > .nav-tabs > .active > a,
.tabs-below > .nav-tabs > .active > a:hover,
.tabs-below > .nav-tabs > .active > a:focus {
border-color: transparent #ddd #ddd #ddd;
}
.tabs-left > .nav-tabs > li,
.tabs-right > .nav-tabs > li {
float: none;
}
.tabs-left > .nav-tabs > li > a,
.tabs-right > .nav-tabs > li > a {
min-width: 74px;
margin-right: 0;
margin-bottom: 3px;
}
.tabs-left > .nav-tabs {
float: left;
margin-right: 19px;
border-right: 1px solid #ddd;
}
.tabs-left > .nav-tabs > li > a {
margin-right: -1px;
-webkit-border-radius: 4px 0 0 4px;
-moz-border-radius: 4px 0 0 4px;
border-radius: 4px 0 0 4px;
}
.tabs-left > .nav-tabs > li > a:hover,
.tabs-left > .nav-tabs > li > a:focus {
border-color: #eeeeee #dddddd #eeeeee #eeeeee;
}
.tabs-left > .nav-tabs .active > a,
.tabs-left > .nav-tabs .active > a:hover,
.tabs-left > .nav-tabs .active > a:focus {
border-color: #ddd transparent #ddd #ddd;
*border-right-color: #ffffff;
}
.tabs-right > .nav-tabs {
float: right;
margin-left: 19px;
border-left: 1px solid #ddd;
}
.tabs-right > .nav-tabs > li > a {
margin-left: -1px;
-webkit-border-radius: 0 4px 4px 0;
-moz-border-radius: 0 4px 4px 0;
border-radius: 0 4px 4px 0;
}
.tabs-right > .nav-tabs > li > a:hover,
.tabs-right > .nav-tabs > li > a:focus {
border-color: #eeeeee #eeeeee #eeeeee #dddddd;
}
.tabs-right > .nav-tabs .active > a,
.tabs-right > .nav-tabs .active > a:hover,
.tabs-right > .nav-tabs .active > a:focus {
border-color: #ddd #ddd #ddd transparent;
*border-left-color: #ffffff;
}
Working example: http://bootply.com/74926
UPDATE
If you don't need the exact look of a tab (bordered appropriately on the left or right as each tab is activated), you can simple use nav-stacked
, along with Bootstrap col-*
to float the tabs to the left or right...
nav-stacked
demo: http://codeply.com/go/rv3Cvr0lZ4
<ul class="nav nav-pills nav-stacked col-md-3">
<li><a href="#a" data-toggle="tab">1</a></li>
<li><a href="#b" data-toggle="tab">2</a></li>
<li><a href="#c" data-toggle="tab">3</a></li>
</ul>
In Excel 2010 it is easy, just takes a few more steps for each list items.
The following steps must be completed for each item within the validation list. (Have the worksheet open to where the drop down was created)
1) Click on cell with drop down list.
2) Select which answer to apply format to.
3) Click on "Home" tab, then click the "Styles" tool button on the ribbon.
4) Click "Conditional Formatting", in drop down list click the "*New Rule" option.
5) Select a Rule Type: "Format only cells that contain"
6) Edit the Rule Description: "Cell Value", "equal to", click the cell formula icon in
the formula bar (far right), select which worksheet the validation list was created in,
select the cell within the list to which you wish to apply the formatting.
Formula should look something like:
='Workbook Data'!$A$2
7) Click the formula icon again to return to format menu.
8) Click on Format button beside preview pane.
9) Select all format options desired.
10) Press "OK" twice.
You are finished with only one item within list. Repeat steps 1 thru 10 until all drop down list items are finished.
if "Vagrantfile" already exists in this directory. Remove it before running "vagrant init".
error shows then
1. rm Vagrantfile
2. vagrant init hashicorp/precise64
3. vagrant up
I was almost using the same technology as you did, however I was using my app to connect an Exchange Server via Office 365 platform on WinForms. I too had the same issue as you did, but was able to accomplish by using code which has slight modification of what others have given above.
SmtpClient client = new SmtpClient(exchangeServer, 587);
client.Credentials = new System.Net.NetworkCredential(username, password);
client.EnableSsl = true;
client.Send(msg);
I had to use the Port 587, which is of course the default port over TSL and the did the authentication.
border-collapse: separate !important;
worked.
Thanks.
HTML
<table class="bordered">
<thead>
<tr>
<th><label>Labels</label></th>
<th><label>Labels</label></th>
<th><label>Labels</label></th>
<th><label>Labels</label></th>
<th><label>Labels</label></th>
</tr>
</thead>
<tbody>
<tr>
<td><label>Value</label></td>
<td><label>Value</label></td>
<td><label>Value</label></td>
<td><label>Value</label></td>
<td><label>Value</label></td>
</tr>
</tbody>
</table>
CSS
table {
border-collapse: separate !important;
border-spacing: 0;
width: 600px;
margin: 30px;
}
.bordered {
border: solid #ccc 1px;
-moz-border-radius: 6px;
-webkit-border-radius: 6px;
border-radius: 6px;
-webkit-box-shadow: 0 1px 1px #ccc;
-moz-box-shadow: 0 1px 1px #ccc;
box-shadow: 0 1px 1px #ccc;
}
.bordered tr:hover {
background: #ECECEC;
-webkit-transition: all 0.1s ease-in-out;
-moz-transition: all 0.1s ease-in-out;
transition: all 0.1s ease-in-out;
}
.bordered td, .bordered th {
border-left: 1px solid #ccc;
border-top: 1px solid #ccc;
padding: 10px;
text-align: left;
}
.bordered th {
background-color: #ECECEC;
background-image: -webkit-gradient(linear, left top, left bottom, from(#F8F8F8), to(#ECECEC));
background-image: -webkit-linear-gradient(top, #F8F8F8, #ECECEC);
background-image: -moz-linear-gradient(top, #F8F8F8, #ECECEC);
background-image: linear-gradient(top, #F8F8F8, #ECECEC);
-webkit-box-shadow: 0 1px 0 rgba(255,255,255,.8) inset;
-moz-box-shadow:0 1px 0 rgba(255,255,255,.8) inset;
box-shadow: 0 1px 0 rgba(255,255,255,.8) inset;
border-top: none;
text-shadow: 0 1px 0 rgba(255,255,255,.5);
}
.bordered td:first-child, .bordered th:first-child {
border-left: none;
}
.bordered th:first-child {
-moz-border-radius: 6px 0 0 0;
-webkit-border-radius: 6px 0 0 0;
border-radius: 6px 0 0 0;
}
.bordered th:last-child {
-moz-border-radius: 0 6px 0 0;
-webkit-border-radius: 0 6px 0 0;
border-radius: 0 6px 0 0;
}
.bordered th:only-child{
-moz-border-radius: 6px 6px 0 0;
-webkit-border-radius: 6px 6px 0 0;
border-radius: 6px 6px 0 0;
}
.bordered tr:last-child td:first-child {
-moz-border-radius: 0 0 0 6px;
-webkit-border-radius: 0 0 0 6px;
border-radius: 0 0 0 6px;
}
.bordered tr:last-child td:last-child {
-moz-border-radius: 0 0 6px 0;
-webkit-border-radius: 0 0 6px 0;
border-radius: 0 0 6px 0;
}
You have everything right, but the problem is with getLine1Number()
function.
getLine1Number()- this method returns the phone number string for line 1, i.e the MSISDN for a GSM phone. Return null if it is unavailable.
this method works only for few cell phone but not all phones.
So, if you need to perform operations according to the sim(other than calling), then you should use getSimSerialNumber()
. It is always unique, valid and it always exists.
I you want to put the response of the request in the navItems
. Because http.get()
return an observable you will have to subscribe to it.
Look at this example:
// version without map_x000D_
this.http.get("../data/navItems.json")_x000D_
.subscribe((success) => {_x000D_
this.navItems = success.json(); _x000D_
});_x000D_
_x000D_
// with map_x000D_
import 'rxjs/add/operator/map'_x000D_
this.http.get("../data/navItems.json")_x000D_
.map((data) => {_x000D_
return data.json();_x000D_
})_x000D_
.subscribe((success) => {_x000D_
this.navItems = success; _x000D_
});
_x000D_
Worked for me , can try with the same
<ProgressBar
android:id="@+id/determinateBar"
android:indeterminateOnly="true"
android:indeterminateDrawable="@android:drawable/progress_indeterminate_horizontal"
android:indeterminateDuration="10"
android:indeterminateBehavior="repeat"
android:progressBackgroundTint="#208afa"
android:progressBackgroundTintMode="multiply"
android:minHeight="24dip"
android:maxHeight="24dip"
android:layout_width="match_parent"
android:layout_height="10dp"
android:visibility="visible"/>
Thanks for all answers above, but for me, I can not find Base64Encoder class, so I sort out my way anyway.
public static void main(String[] args) {
try {
DefaultHttpClient Client = new DefaultHttpClient();
HttpGet httpGet = new HttpGet("https://httpbin.org/basic-auth/user/passwd");
String encoding = DatatypeConverter.printBase64Binary("user:passwd".getBytes("UTF-8"));
httpGet.setHeader("Authorization", "Basic " + encoding);
HttpResponse response = Client.execute(httpGet);
System.out.println("response = " + response);
BufferedReader breader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
StringBuilder responseString = new StringBuilder();
String line = "";
while ((line = breader.readLine()) != null) {
responseString.append(line);
}
breader.close();
String repsonseStr = responseString.toString();
System.out.println("repsonseStr = " + repsonseStr);
} catch (IOException e) {
e.printStackTrace();
}
}
One more thing, I also tried
Base64.encodeBase64String("user:passwd".getBytes());
It does NOT work due to it return a string almost same with
DatatypeConverter.printBase64Binary()
but end with "\r\n", then server will return "bad request".
Also following code is working as well, actually I sort out this first, but for some reason, it does NOT work in some cloud environment (sae.sina.com.cn if you want to know, it is a chinese cloud service). so have to use the http header instead of HttpClient credentials.
public static void main(String[] args) {
try {
DefaultHttpClient Client = new DefaultHttpClient();
Client.getCredentialsProvider().setCredentials(
AuthScope.ANY,
new UsernamePasswordCredentials("user", "passwd")
);
HttpGet httpGet = new HttpGet("https://httpbin.org/basic-auth/user/passwd");
HttpResponse response = Client.execute(httpGet);
System.out.println("response = " + response);
BufferedReader breader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
StringBuilder responseString = new StringBuilder();
String line = "";
while ((line = breader.readLine()) != null) {
responseString.append(line);
}
breader.close();
String responseStr = responseString.toString();
System.out.println("responseStr = " + responseStr);
} catch (IOException e) {
e.printStackTrace();
}
}
If, like me, you can't find a datetime under date or time in the format dialog, you should be able to find it in 'Custom'.
I just selected 'dd/mm/yyyy hh:mm' from 'Custom' and am happy with the results.
Since Gradle 4.9, the command line arguments can be passed with --args. For example, if you want to launch the application with command line arguments foo --bar
, you can use
gradle run --args='foo --bar'
It would be better to set up a 301 redirect. See the Google's Webmaster Tools article 301 redirects.
In order to read a file chosen by the user, using a file open dialog, you can use the <input type="file">
tag. You can find information on it from MSDN. When the file is chosen you can use the FileReader API to read the contents.
function onFileLoad(elementId, event) {_x000D_
document.getElementById(elementId).innerText = event.target.result;_x000D_
}_x000D_
_x000D_
function onChooseFile(event, onLoadFileHandler) {_x000D_
if (typeof window.FileReader !== 'function')_x000D_
throw ("The file API isn't supported on this browser.");_x000D_
let input = event.target;_x000D_
if (!input)_x000D_
throw ("The browser does not properly implement the event object");_x000D_
if (!input.files)_x000D_
throw ("This browser does not support the `files` property of the file input.");_x000D_
if (!input.files[0])_x000D_
return undefined;_x000D_
let file = input.files[0];_x000D_
let fr = new FileReader();_x000D_
fr.onload = onLoadFileHandler;_x000D_
fr.readAsText(file);_x000D_
}
_x000D_
<input type='file' onchange='onChooseFile(event, onFileLoad.bind(this, "contents"))' />_x000D_
<p id="contents"></p>
_x000D_
in plain javascript:
function test() {
var cboxes = document.getElementsByName('mailId[]');
var len = cboxes.length;
for (var i=0; i<len; i++) {
alert(i + (cboxes[i].checked?' checked ':' unchecked ') + cboxes[i].value);
}
}
function selectOnlyOne(current_clicked) {
var cboxes = document.getElementsByName('mailId[]');
var len = cboxes.length;
for (var i=0; i<len; i++) {
cboxes[i].checked = (cboxes[i] == current);
}
}
You can specify a default value for the optional argument with something that would never passed to the function and check it with the is
operator:
class _NO_DEFAULT:
def __repr__(self):return "<no default>"
_NO_DEFAULT = _NO_DEFAULT()
def func(optional= _NO_DEFAULT):
if optional is _NO_DEFAULT:
print("the optional argument was not passed")
else:
print("the optional argument was:",optional)
then as long as you do not do func(_NO_DEFAULT)
you can be accurately detect whether the argument was passed or not, and unlike the accepted answer you don't have to worry about side effects of ** notation:
# these two work the same as using **
func()
func(optional=1)
# the optional argument can be positional or keyword unlike using **
func(1)
#this correctly raises an error where as it would need to be explicitly checked when using **
func(invalid_arg=7)
Just tried updating 43 fields on a table with 44 fields, the remaining field was the primary clustered key.
The update took 8 seconds.
A Delete + Insert is faster than the minimum time interval that the "Client Statistics" reports via SQL Management Studio.
Peter
MS SQL 2008
Sass/Compass version of a previous responsive solution:
#content {
position: absolute;
left: 50%;
top: 50%;
@include vendor(transform, translate(-50%, -50%));
}
If you are just placing the code on the page, usually the code behind will get an auto generated field you to use like @Oded has shown.
In other cases, you can always use this code:
Label myLabel = this.FindControl("myLabel") as Label; // this is your Page class
if(myLabel != null)
myLabel.Text = "SomeText";
Allows getting any URL on your system, not just a current one.
import org.springframework.hateoas.mvc.ControllerLinkBuilder
...
ControllerLinkBuilder linkBuilder = ControllerLinkBuilder.linkTo(methodOn(YourController.class).getSomeEntityMethod(parameterId, parameterTwoId))
URI methodUri = linkBuilder.Uri()
String methodUrl = methodUri.getPath()
So I was curious about the performance of some of the methods mentioned in the answers for large number of integers.
Just creating an array of 1 million random integers between 0 and 100. Than, I imploded them to get the string.
$integers = array();
for ($i = 0; $i < 1000000; $i++) {
$integers[] = rand(0, 100);
}
$long_string = implode(',', $integers);
This is the one liner from Mark's answer:
$integerIDs = array_map('intval', explode(',', $long_string));
This is the JSON approach:
$integerIDs = json_decode('[' . $long_string . ']', true);
I came up with this one as modification of Mark's answer. This is still using explode()
function, but instead of calling array_map()
I'm using regular foreach
loop to do the work to avoid the overhead array_map()
might have. I am also parsing with (int)
vs intval()
, but I tried both, and there is not much difference in terms of performance.
$result_array = array();
$strings_array = explode(',', $long_string);
foreach ($strings_array as $each_number) {
$result_array[] = (int) $each_number;
}
Results:
Method 1 Method 2 Method 3
0.4804770947 0.3608930111 0.3387751579
0.4748001099 0.363986969 0.3762528896
0.4625790119 0.3645150661 0.3335959911
0.5065748692 0.3570590019 0.3365750313
0.4803431034 0.4135499001 0.3330330849
0.4510772228 0.4421861172 0.341176033
0.503674984 0.3612480164 0.3561749458
0.5598649979 0.352314949 0.3766179085
0.4573421478 0.3527538776 0.3473439217
0.4863037268 0.3742785454 0.3488383293
The bottom line is the average. It looks like the first method was a little slower for 1 million integers, but I didn't notice 3x performance gain of Method 2 as stated in the answer. It turned out foreach
loop was the quickest one in my case. I've done the benchmarking with Xdebug.
Edit: It's been a while since the answer was originally posted. To clarify, the benchmark was done in php 5.6.
I was having problem in Windows 7 with PHP 5.4.0 in command line, using Xampp 1.8.1 server. This is what i did:
php.ini-production
to php.ini
(in C:\xampp\php\ folder)php.ini
and uncomment extension_dir=ext
.extension=php_openssl.dll
.After that it worked fine.
No. That is an irregular grammar. There may be engine-/language-specific regular expressions that you can use, but there is no universal regular expression that can do that.
Another way of declaring multi-dimentional arrays:
Array.fill(4,3)("")
res3: Array[Array[String]] = Array(Array("", "", ""), Array("", "", ""),Array("", "", ""), Array("", "", ""))
Skip all of this. Download Microsoft FUZZY LOOKUP add in. Create tables using your columns. Create a new worksheet. INPUT tables into the tool. Click all corresponding columns check boxes. Use slider for exact matches. HIT go and wait for the magic.
Your include paths indicate that you should be compiling against the system's OpenSSL installation. You shouldn't have the .h
files in your package directory - it should be picking them up from /usr/include/openssl
.
The plain OpenSSL package (libssl
) doesn't include the .h
files - you need to install the development package as well. This is named libssl-dev
on Debian, Ubuntu and similar distributions, and libssl-devel
on CentOS, Fedora, Red Hat and similar.
You need to do the following:
public class CountryInfoResponse {
@JsonProperty("geonames")
private List<Country> countries;
//getter - setter
}
RestTemplate restTemplate = new RestTemplate();
List<Country> countries = restTemplate.getForObject("http://api.geonames.org/countryInfoJSON?username=volodiaL",CountryInfoResponse.class).getCountries();
It would be great if you could use some kind of annotation to allow you to skip levels, but it's not yet possible (see this and this)
The body element takes the available width, which is usually your browser viewport. As such, it will be different dimensions cross browser due to browser chrome borders, scrollbars, vertical space being take up by menus and whatnot...
The fact that the heights also vary, also tells me you set the body/html height to 100% through css since the height is usually dependant on elements inside the body..
Unless you set the width of the body element to a fixed value through css or it's style property, it's dimensions will as a rule, always vary cross browsers/versions and perhaps even depending on plugins you installed for the browser. Constant values in such a case is more an exception to the rule...
When you invoke .clientWidth on other elements that do not take the automatic width of the browser viewport, it will always return the elements 'width' + 'padding'. So a div with width 200 and a padding of 20 will have clientWidth = 240 (20 padding left and right).
The main reason however, why one would invoke clientWidth, is exactly due to possible expected discrepancies in results. If you know you will get a constant width and the value is known, then invoking clientWidth is redundant...
Try this code...
ScriptManager.RegisterClientScriptBlock(UpdatePanel1, this.GetType(), "script", "alert('Hi');", true);
Where UpdatePanel1
is the id
for Updatepanel
on your page
The Problem is arising because you are trying to clear the entire list box. Just use listView1.Items.Clear();
var name = $('#myElement').attr('name');
Some important facts were not given in other answers:
"async await" is more complex at CIL level and thus costs memory and CPU time.
Any task can be canceled if the waiting time is unacceptable.
In the case "async await" we do not have a handler for such a task to cancel it or monitoring it.
Using Task is more flexible then "async await".
Any sync functionality can by wrapped by async.
public async Task<ActionResult> DoAsync(long id)
{
return await Task.Run(() => { return DoSync(id); } );
}
"async await" generate many problems. We do not now is await statement will be reached without runtime and context debugging. If first await not reached everything is blocked. Some times even await seems to be reached still everything is blocked:
https://github.com/dotnet/runtime/issues/36063
I do not see why I'm must live with the code duplication for sync and async method or using hacks.
Conclusion: Create Task manually and control them is much better. Handler to Task give more control. We can monitor Tasks and manage them:
https://github.com/lsmolinski/MonitoredQueueBackgroundWorkItem
Sorry for my english.
You can use .gitignore in the top level to ignore all directories in the project with the same name. For example:
Debug/
Release/
This should update immediately so it's visible when you do git status. Ensure that these directories are not already added to git, as that will override the ignores.
The question won't be complete if we don't mention about alternative methods for looping through objects.
Nowadays many well known JavaScript libraries provide their own methods for iterating over collections, i.e. over arrays, objects, and array-like objects. These methods are convenient to use and are entirely compatible with any browser.
If you work with jQuery, you may use jQuery.each()
method. It can be used to seamlessly iterate over both objects and arrays:
$.each(obj, function(key, value) {
console.log(key, value);
});
In Underscore.js you can find method _.each()
, which iterates over a list of elements, yielding each in turn to a supplied function (pay attention to the order of arguments in iteratee function!):
_.each(obj, function(value, key) {
console.log(key, value);
});
Lo-Dash provides several methods for iterating over object properties. Basic _.forEach()
(or it's alias _.each()
) is useful for looping through both objects and arrays, however (!) objects with length
property are treated like arrays, and to avoid this behavior it is suggested to use _.forIn()
and _.forOwn()
methods (these also have value
argument coming first):
_.forIn(obj, function(value, key) {
console.log(key, value);
});
_.forIn()
iterates over own and inherited enumerable properties of an object, while _.forOwn()
iterates only over own properties of an object (basically checking against hasOwnProperty
function). For simple objects and object literals any of these methods will work fine.
Generally all described methods have the same behaviour with any supplied objects. Besides using native for..in
loop will usually be faster than any abstraction, such as jQuery.each()
, these methods are considerably easier to use, require less coding and provide better error handling.
I searched for the solution online and found this solution but wasn't too keen on the registry change.
I found a better way: right-click on the solution name right at the top of the Solution Explorer and select the Go Online option. Clicking this allowed me to select the files that had been changed when I was offline and make the solution online again.
After finding the solution, I found the following msdn forum thread which confirmed the above.
imp system/system-password@SID file=directory-you-selected\FILE.dmp log=log-dir\oracle_load.log fromuser=infodba touser=infodba commit=Y
I encounter the same problem, and @Joe Kington and @bvanlew's answer solve my problem.
but I should add more infomation when you use pycharm and enable auto import
.
when you format the code, the code from mpl_toolkits.mplot3d import Axes3D
will auto remove by pycharm.
so, my solution is
from mpl_toolkits.mplot3d import Axes3D
Axes3D = Axes3D # pycharm auto import
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
and it works well!
Try This Its working
@Override
public void onBackPressed(){
super.onBackPressed();
Intent i=new Intent(Intent.ACTION_MAIN);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
finish();
}
The Facebook API limit isn't really documented, but apparently it's something like: 600 calls per 600 seconds, per token & per IP. As the site is restricted, quoting the relevant part:
After some testing and discussion with the Facebook platform team, there is no official limit I'm aware of or can find in the documentation. However, I've found 600 calls per 600 seconds, per token & per IP to be about where they stop you. I've also seen some application based rate limiting but don't have any numbers.
As a general rule, one call per second should not get rate limited. On the surface this seems very restrictive but remember you can batch certain calls and use the subscription API to get changes.
As you can access the Graph API on the client side via the Javascript SDK; I think if you travel your request for photos from the client, you won't hit any application limit
as it's the user (each one with unique id) who's fetching data, not your application server (unique ID).
This may mean a huge refactor if everything you do go through a server. But it seems like the best solution if you have so many request (as it'll give a breath to your server).
Else, you can try batch
request, but I guess you're already going this way if you have big traffic.
If nothing of this works, according to the Facebook Platform Policy you should contact them.
If you exceed, or plan to exceed, any of the following thresholds please contact us as you may be subject to additional terms: (>5M MAU) or (>100M API calls per day) or (>50M impressions per day).
I have came across this issue few times during the development of one complex Excel VBA app. Sometimes Excel started to break VBA object quite randomly. And the only remedy was to reboot machine. After reboot, Excel usually started to act normally.
Soon I have found out that possible solution to this issue is to hit CTRL+Break once when macro is NOT running. Maybe this can help to you too.
This XML file does not appear to have any style information associated with it. The document tree is shown below.
You will get this error in the client side when the client (the webbrowser) for some reason interprets the HTTP response content as text/xml
instead of text/html
and the parsed XML tree doesn't have any XML-stylesheet. In other words, the webbrowser incorrectly parsed the retrieved HTTP response content as XML instead of as HTML due to the wrong or missing HTTP response content type.
In case of JSF/Facelets files which have the default extension of .xhtml
, that can in turn happen if the HTTP request hasn't invoked the FacesServlet
and thus it wasn't able to parse the Facelets file and generate the desired HTML output based on the XHTML source code. Firefox is then merely guessing the HTTP response content type based on the .xhtml
file extension which is in your Firefox configuration apparently by default interpreted as text/xml
.
You need to make sure that the HTTP request URL, as you see in browser's address bar, matches the <url-pattern>
of the FacesServlet
as registered in webapp's web.xml
, so that it will be invoked and be able to generate the desired HTML output based on the XHTML source code. If it's for example *.jsf
, then you need to open the page by /some.jsf
instead of /some.xhtml
. Alternatively, you can also just change the <url-pattern>
to *.xhtml
. This way you never need to fiddle with virtual URLs.
Note thus that you don't actually need a XML stylesheet. This all was just misinterpretation by the webbrowser while trying to do its best to make something presentable out of the retrieved HTTP response content. It should actually have retrieved the properly generated HTML output, Firefox surely knows precisely how to deal with HTML content.
There's one more (at least) road to Rome:
static const char HELLO3[] = "Howdy";
(static
— optional — is to prevent it from conflicting with other files). I'd prefer this one over const char*
, because then you'll be able to use sizeof(HELLO3)
and therefore you don't have to postpone till runtime what you can do at compile time.
The define has an advantage of compile-time concatenation, though (think HELLO ", World!"
) and you can sizeof(HELLO)
as well.
But then you can also prefer const char*
and use it across multiple files, which would save you a morsel of memory.
In short — it depends.
Try this code its working Firefox, Chrome, IE
<select onchange="this.options[this.selectedIndex].value && (window.location = this.options[this.selectedIndex].value);">
<option value="" selected>---Select---</option>
<option value="https://www.google.com">Google</option>
<option value="https://www.google.com">Google</option>
<option value="https://www.google.com">Google</option>
<option value="https://www.google.com">Google</option>
private String message;
private ScreenManager s;
//Here is an example of code to add the keyListener() as suggested; modify
public void init(){
Window w = s.getFullScreenWindow();
w.addKeyListener(this);
public void keyPressed(KeyEvent e){
int keyCode = e.getKeyCode();
if(keyCode == KeyEvent.VK_F5)
message = "Pressed: " + KeyEvent.getKeyText(keyCode);
}
Install the vagrant-vbguest plugin by running this command:
vagrant plugin install vagrant-vbguest
The reason is because a FileStream is returned from your method to create a file. You should return the FileStream into a variable or call the close method directly from it after the File.Create.
It is a best practice to let the using block help you implement the IDispose pattern for a task like this. Perhaps what might work better would be:
if(!File.Exists(myPath)){
using(FileStream fs = File.Create(myPath))
using(StreamWriter writer = new StreamWriter(fs)){
// do your work here
}
}
You can try the code
<View
style={{
alignItems: 'center',
justifyContent: 'center'
}}
>
<View
style={{
position: 'absolute',
margin: 'auto',
width: 50,
height: 50
}}
/>
</View>
You can also plot the timestamp, value pairs using pyplot.plot (after parsing them from their string representation). (Tested with matplotlib versions 1.2.0 and 1.3.1.)
Example:
import datetime
import random
import matplotlib.pyplot as plt
# make up some data
x = [datetime.datetime.now() + datetime.timedelta(hours=i) for i in range(12)]
y = [i+random.gauss(0,1) for i,_ in enumerate(x)]
# plot
plt.plot(x,y)
# beautify the x-labels
plt.gcf().autofmt_xdate()
plt.show()
Resulting image:
Here's the same as a scatter plot:
import datetime
import random
import matplotlib.pyplot as plt
# make up some data
x = [datetime.datetime.now() + datetime.timedelta(hours=i) for i in range(12)]
y = [i+random.gauss(0,1) for i,_ in enumerate(x)]
# plot
plt.scatter(x,y)
# beautify the x-labels
plt.gcf().autofmt_xdate()
plt.show()
Produces an image similar to this:
Can you provide some more details like which linux you are using? Are you loged in as root? On linux you have to run export CLASSPATH = %path%;LOG4J_HOME/og4j-1.2.16.jar If you want it permanent then you can add above lines in ~/.bashrc file.
First you should understand how factorial works.
Lets take 4! as an example.
4! = 4 * 3 * 2 * 1 = 24
Let us simulate the code using the example above:
int fact(int n)
{
int result;
if(n==0 || n==1)
return 1;
result = fact(n-1) * n;
return result;
}
In most programming language, we have what we call function stack
. It is just like a deck of cards, where each card is placed above the other--and each card may be thought of as a function So, passing on method fact
:
Stack level 1: fact(4) // n = 4 and is not equal to 1. So we call fact(n-1)*n
Stack level 2: fact(3)
Stack level 3: fact(2)
Stack level 4: fact(1)
// now, n = 1. so we return 1 from this function.
returning values...
Stack level 3: 2 * fact(1) = 2 * 1 = 2
Stack level 2: 3 * fact(2) = 3 * 2 = 6
Stack level 1: 4 * fact(3) = 4 * 6 = 24
so we got 24.
Take note of these lines:
result = fact(n-1) * n;
return result;
or simply:
return fact(n-1) * n;
This calls the function itself. Using 4 as an example,
In sequence according to function stacks..
return fact(3) * 4;
return fact(2) * 3 * 4
return fact(1) * 2 * 3 * 4
Substituting results...
return 1 * 2 * 3 * 4 = return 24
I hope you get the point.
You can use
$(window).on('load', function() {
// your code here
});
Which will wait until the page is loaded. $(document).ready()
waits until the DOM is loaded.
In plain JS:
window.addEventListener('load', function() {
// your code here
})
Alternate solution can be:
baseKey hKeyLocalMachine = baseKey.HKEY_LOCAL_MACHINE;
uint value = (uint)hKeyLocalMachine;
Or just:
uint value = (uint)baseKey.HKEY_LOCAL_MACHINE;
Something simpler than what @Milen proposed but it gives YYYY-MM-DD instead of the DD-MM-YYYY you wanted :
SUBSTRING((DT_STR,30, 1252) GETDATE(), 1, 10)
Expression builder screen:
A TreeMap
is always sorted by the keys, anything else is impossible. A Comparator
merely allows you to control how the keys are sorted.
If you want the sorted values, you have to extract them into a List
and sort that.
From the JDK source:
static <T> Function<T, T> identity() {
return t -> t;
}
So, no, as long as it is syntactically correct.
Css:
br {
display: block;
margin: 10px 0;
}
The solution is probably not cross-browser compatible, but it's something at least. Also consider setting line-height
:
line-height:22px;
For Google Chrome, consider setting content
:
content: " ";
Other than that, I think you're stuck with a JavaScript solution.
when i run xampp control panel normal:
I had been run
I can’t start apache So, I will run it with administrator:
I can run apache
Also, this can be achieved in SWIFT using the method as follows
func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if (editingStyle == UITableViewCellEditingStyle.Delete){
testArray.removeAtIndex(indexPath.row)
goalsTableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
}
}
This is for version 1.4.4
<div data-role="header" >
<h1>CHANGE HOUSE ANIMATION</h1>
<a href="#" data-rel="back" class="ui-btn-left ui-btn ui-icon-back ui-btn-icon-notext ui-shadow ui-corner-all" data-role="button" role="button">Back</a>
</div>
Install a JDK.
It's possible to get Eclipse to run with a JRE, or at least it used to be, but why bother? Eclipse is much happier with a JDK.
Remember that the JRE that is used to run Eclipse does not have to be the JRE that Eclipse uses to run an application.
PS. I'm assuming here that the original poster's problem was getting Eclipse to start, and not (as some other Answers seem to address) getting Eclipse to start an application.
You're correct, in that example the throws
is superfluous. It's possible that it was left there from some previous implementation - perhaps the exception was originally thrown instead of caught in the catch block.
There is a discussion on http://blogs.msdn.com/marcelolr/archive/2009/03/13/fast-way-to-convert-xmldocument-into-xdocument.aspx
It seems that reading an XDocument via an XmlNodeReader is the fastest method. See the blog for more details.
You can provide a new testContext.xml in which the @Autowired
bean you define is of the type you need for your test.
The ? : operator in Java
In Java you might write:
if (a > b) {
max = a;
}
else {
max = b;
}
Setting a single variable to one of two states based on a single condition is such a common use of if-else that a shortcut has been devised for it, the conditional operator, ?:. Using the conditional operator you can rewrite the above example in a single line like this:
max = (a > b) ? a : b;
(a > b) ? a : b; is an expression which returns one of two values, a or b. The condition, (a > b), is tested. If it is true the first value, a, is returned. If it is false, the second value, b, is returned. Whichever value is returned is dependent on the conditional test, a > b. The condition can be any expression which returns a boolean value.
First, since length
always returns a non-negative number,
if ( length $name )
and
if ( length $name > 0 )
are equivalent.
If you are OK with replacing an undefined value with an empty string, you can use Perl 5.10's //=
operator which assigns the RHS to the LHS unless the LHS is defined:
#!/usr/bin/perl
use feature qw( say );
use strict; use warnings;
my $name;
say 'nonempty' if length($name //= '');
say "'$name'";
Note the absence of warnings about an uninitialized variable as $name
is assigned the empty string if it is undefined.
However, if you do not want to depend on 5.10 being installed, use the functions provided by Scalar::MoreUtils. For example, the above can be written as:
#!/usr/bin/perl
use strict; use warnings;
use Scalar::MoreUtils qw( define );
my $name;
print "nonempty\n" if length($name = define $name);
print "'$name'\n";
If you don't want to clobber $name
, use default
.
I would try the program screen.
Simply call list
on the generator.
lst = list(gen)
lst
Be aware that this affects the generator which will not return any further items.
You also cannot directly call list
in IPython, as it conflicts with a command for listing lines of code.
Tested on this file:
def gen():
yield 1
yield 2
yield 3
yield 4
yield 5
import ipdb
ipdb.set_trace()
g1 = gen()
text = "aha" + "bebe"
mylst = range(10, 20)
which when run:
$ python code.py
> /home/javl/sandbox/so/debug/code.py(10)<module>()
9
---> 10 g1 = gen()
11
ipdb> n
> /home/javl/sandbox/so/debug/code.py(12)<module>()
11
---> 12 text = "aha" + "bebe"
13
ipdb> lst = list(g1)
ipdb> lst
[1, 2, 3, 4, 5]
ipdb> q
Exiting Debugger.
There are debugger commands p
and pp
that will print
and prettyprint
any expression following them.
So you could use it as follows:
$ python code.py
> /home/javl/sandbox/so/debug/code.py(10)<module>()
9
---> 10 g1 = gen()
11
ipdb> n
> /home/javl/sandbox/so/debug/code.py(12)<module>()
11
---> 12 text = "aha" + "bebe"
13
ipdb> p list(g1)
[1, 2, 3, 4, 5]
ipdb> c
There is also an exec
command, called by prefixing your expression with !
, which forces debugger to take your expression as Python one.
ipdb> !list(g1)
[]
For more details see help p
, help pp
and help exec
when in debugger.
ipdb> help exec
(!) statement
Execute the (one-line) statement in the context of
the current stack frame.
The exclamation point can be omitted unless the first word
of the statement resembles a debugger command.
To assign to a global variable you must always prefix the
command with a 'global' command, e.g.:
(Pdb) global list_options; list_options = ['-l']
If you renamed the folder containing your Homestead project, you'll get this error. Visit your Homestead.yaml
file and update any references to point to the renamed folder, then do vagrant up
(etc.) again
When we used to work in MSSQL 2000, we did what we called the "triple-flip":
EDITED
DECLARE @InnerPageSize int
DECLARE @OuterPageSize int
DECLARE @Count int
SELECT @Count = COUNT(<column>) FROM <TABLE>
SET @InnerPageSize = @PageNum * @PageSize
SET @OuterPageSize = @Count - ((@PageNum - 1) * @PageSize)
IF (@OuterPageSize < 0)
SET @OuterPageSize = 0
ELSE IF (@OuterPageSize > @PageSize)
SET @OuterPageSize = @PageSize
DECLARE @sql NVARCHAR(8000)
SET @sql = 'SELECT * FROM
(
SELECT TOP ' + CAST(@OuterPageSize AS nvarchar(5)) + ' * FROM
(
SELECT TOP ' + CAST(@InnerPageSize AS nvarchar(5)) + ' * FROM <TABLE> ORDER BY <column> ASC
) AS t1 ORDER BY <column> DESC
) AS t2 ORDER BY <column> ASC'
PRINT @sql
EXECUTE sp_executesql @sql
It wasn't elegant, and it wasn't fast, but it worked.
Use a comparison function:
bool compareByLength(const data &a, const data &b)
{
return a.word.size() < b.word.size();
}
and then use std::sort
in the header #include <algorithm>
:
std::sort(info.begin(), info.end(), compareByLength);
Heap pollution is a technical term. It refers to references which have a type that is not a supertype of the object they point to.
List<A> listOfAs = new ArrayList<>();
List<B> listOfBs = (List<B>)(Object)listOfAs; // points to a list of As
This can lead to "unexplainable" ClassCastException
s.
// if the heap never gets polluted, this should never throw a CCE
B b = listOfBs.get(0);
@SafeVarargs
does not prevent this at all. However, there are methods which provably will not pollute the heap, the compiler just can't prove it. Previously, callers of such APIs would get annoying warnings that were completely pointless but had to be suppressed at every call site. Now the API author can suppress it once at the declaration site.
However, if the method actually is not safe, users will no longer be warned.
If using Sublime Text 3: