They're examples provided by the Android team, if you've already loaded Samples, you can import Home screen replacement sample by following these steps.
File > New > Other >Android > Android Sample Project > Android x.x > Home > Finish
But if you do not have samples loaded, then download it using the below steps
Windows > Android SDK Manager > chooses "Sample for SDK" for SDK you need it > Install package > Accept License > Install
To quickly create a new set of icons and change the launcher icon in Android Studio, you can:
Use this tool: https://romannurik.github.io/AndroidAssetStudio/icons-launcher.html to upload your preferred image or icon (your source file). The tool then automatically creates a set of icons in all the different resolutions for the ic_launcher.png.
Download the zip-file created by the tool, extract everything (which will create a folder structure for all the different resolutions) and then replace all the icons inside your project res folder: <AndroidStudioProjectPath>\app\src\main\res
To run Minecraft with Forge (change C:\Users\nov11\AppData\Roaming/.minecraft/
to your MineCraft path :) [Just for people who are a bit too lazy to search on Google...]
Special thanks to ammarx for his TagAPI_3 (Github) which was used to create this command.
Arguments are separated line by line to make it easier to find useful ones.
java
-Xms1024M
-Xmx1024M
-XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
-Djava.library.path=C:\Users\nov11\AppData\Roaming/.minecraft/versions/1.12.2/natives
-cp
C:\Users\nov11\AppData\Roaming/.minecraft/libraries/net/minecraftforge/forge/1.12.2-14.23.5.2775/forge-1.12.2-14.23.5.2775.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/net/minecraft/launchwrapper/1.12/launchwrapper-1.12.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/ow2/asm/asm-all/5.2/asm-all-5.2.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/jline/jline/3.5.1/jline-3.5.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/net/java/dev/jna/jna/4.4.0/jna-4.4.0.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/typesafe/config/1.2.1/config-1.2.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/lzma/lzma/0.0.1/lzma-0.0.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/net/sf/jopt-simple/jopt-simple/5.0.3/jopt-simple-5.0.3.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/java3d/vecmath/1.5.2/vecmath-1.5.2.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/apache/maven/maven-artifact/3.5.3/maven-artifact-3.5.3.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/mojang/patchy/1.1/patchy-1.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/oshi-project/oshi-core/1.1/oshi-core-1.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/net/java/dev/jna/jna/4.4.0/jna-4.4.0.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/net/java/dev/jna/platform/3.4.0/platform-3.4.0.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/net/sf/jopt-simple/jopt-simple/5.0.3/jopt-simple-5.0.3.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/io/netty/netty-all/4.1.9.Final/netty-all-4.1.9.Final.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/google/guava/guava/21.0/guava-21.0.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/apache/commons/commons-lang3/3.5/commons-lang3-3.5.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/commons-io/commons-io/2.5/commons-io-2.5.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/commons-codec/commons-codec/1.10/commons-codec-1.10.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/google/code/gson/gson/2.8.0/gson-2.8.0.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/mojang/authlib/1.5.25/authlib-1.5.25.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/mojang/realms/1.10.22/realms-1.10.22.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/apache/httpcomponents/httpclient/4.3.3/httpclient-4.3.3.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/apache/httpcomponents/httpcore/4.3.2/httpcore-4.3.2.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/it/unimi/dsi/fastutil/7.1.0/fastutil-7.1.0.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/apache/logging/log4j/log4j-api/2.8.1/log4j-api-2.8.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/apache/logging/log4j/log4j-core/2.8.1/log4j-core-2.8.1.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.4-nightly-20150209/lwjgl-2.9.4-nightly-20150209.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.4-nightly-20150209/lwjgl_util-2.9.4-nightly-20150209.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.4-nightly-20150209/lwjgl-platform-2.9.4-nightly-20150209.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.2-nightly-20140822/lwjgl-2.9.2-nightly-20140822.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.2-nightly-20140822/lwjgl_util-2.9.2-nightly-20140822.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/mojang/text2speech/1.10.3/text2speech-1.10.3.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/com/mojang/text2speech/1.10.3/text2speech-1.10.3.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/ca/weblite/java-objc-bridge/1.0.0/java-objc-bridge-1.0.0.jar;C:\Users\nov11\AppData\Roaming/.minecraft/libraries/ca/weblite/java-objc-bridge/1.0.0/java-objc-bridge-1.0.0.jar;C:\Users\nov11\AppData\Roaming/.minecraft/versions/1.12.2/1.12.2.jar
net.minecraft.launchwrapper.Launch
--width
854
--height
480
--username
Ishikawa
--version
1.12.2-forge1.12.2-14.23.5.2775
--gameDir
C:\Users\nov11\AppData\Roaming/.minecraft
--assetsDir
C:\Users\nov11\AppData\Roaming/.minecraft/assets
--assetIndex
1.12
--uuid
N/A
--accessToken
aeef7bc935f9420eb6314dea7ad7e1e5
--userType
mojang
--tweakClass
net.minecraftforge.fml.common.launcher.FMLTweaker
--versionType
Forge
Just when other solutions don't work. accessToken and uuid can be acquired from Mojang Servers, check other anwsers for details.
Edit (26.11.2018): I've also created Launcher Framework in C# (.NET Framework 3.5), which you can also check to see how launcher should work Available Here
Upper div use higher z-index and lower div use lower z-index then use absolute/fixed/relative position
If you're trying to get access to a file, try the openFileOutput()
and openFileInput()
methods as described here. They automatically open input/output streams to the specified file in internal memory. This allows you to bypass the directory and File
objects altogether which is a pretty clean solution.
I've just checked and i have the same code as you and it works perferctly. The only difference is how i fill my List for the params :
I use a : ArrayList<BasicNameValuePair> params
and fill it this way :
params.add(new BasicNameValuePair("apikey", apikey);
I do not use any JSONObject to send params to the webservices.
Are you obliged to use the JSONObject ?
I created a reusable function for this. It actually parses an entire directory of requirements files and sets them to extras_require.
Latest always available here: https://gist.github.com/akatrevorjay/293c26fefa24a7b812f5
import glob
import itertools
import os
# This is getting ridiculous
try:
from pip._internal.req import parse_requirements
from pip._internal.network.session import PipSession
except ImportError:
try:
from pip._internal.req import parse_requirements
from pip._internal.download import PipSession
except ImportError:
from pip.req import parse_requirements
from pip.download import PipSession
def setup_requirements(
patterns=[
'requirements.txt', 'requirements/*.txt', 'requirements/*.pip'
],
combine=True):
"""
Parse a glob of requirements and return a dictionary of setup() options.
Create a dictionary that holds your options to setup() and update it using this.
Pass that as kwargs into setup(), viola
Any files that are not a standard option name (ie install, tests, setup) are added to extras_require with their
basename minus ext. An extra key is added to extras_require: 'all', that contains all distinct reqs combined.
Keep in mind all literally contains `all` packages in your extras.
This means if you have conflicting packages across your extras, then you're going to have a bad time.
(don't use all in these cases.)
If you're running this for a Docker build, set `combine=True`.
This will set `install_requires` to all distinct reqs combined.
Example:
>>> import setuptools
>>> _conf = dict(
... name='mainline',
... version='0.0.1',
... description='Mainline',
... author='Trevor Joynson <[email protected],io>',
... url='https://trevor.joynson.io',
... namespace_packages=['mainline'],
... packages=setuptools.find_packages(),
... zip_safe=False,
... include_package_data=True,
... )
>>> _conf.update(setup_requirements())
>>> # setuptools.setup(**_conf)
:param str pattern: Glob pattern to find requirements files
:param bool combine: Set True to set install_requires to extras_require['all']
:return dict: Dictionary of parsed setup() options
"""
session = PipSession()
# Handle setuptools insanity
key_map = {
'requirements': 'install_requires',
'install': 'install_requires',
'tests': 'tests_require',
'setup': 'setup_requires',
}
ret = {v: set() for v in key_map.values()}
extras = ret['extras_require'] = {}
all_reqs = set()
files = [glob.glob(pat) for pat in patterns]
files = itertools.chain(*files)
for full_fn in files:
# Parse
reqs = {
str(r.req)
for r in parse_requirements(full_fn, session=session)
# Must match env marker, eg:
# yarl ; python_version >= '3.0'
if r.match_markers()
}
all_reqs.update(reqs)
# Add in the right section
fn = os.path.basename(full_fn)
barefn, _ = os.path.splitext(fn)
key = key_map.get(barefn)
if key:
ret[key].update(reqs)
extras[key] = reqs
extras[barefn] = reqs
if 'all' not in extras:
extras['all'] = list(all_reqs)
if combine:
extras['install'] = ret['install_requires']
ret['install_requires'] = list(all_reqs)
def _listify(dikt):
ret = {}
for k, v in dikt.items():
if isinstance(v, set):
v = list(v)
elif isinstance(v, dict):
v = _listify(v)
ret[k] = v
return ret
ret = _listify(ret)
return ret
__all__ = ['setup_requirements']
if __name__ == '__main__':
reqs = setup_requirements()
print(reqs)
.label:after{_x000D_
content:'ADD';_x000D_
}_x000D_
.label:hover:after{_x000D_
content:'NEW';_x000D_
}
_x000D_
<span class="label"></span>
_x000D_
One way to do this... As text length increases try to change (decrease) the fontsize of the label text using
Label.adjustsFontSizeToFitWidth = YES;
I also had this problem in 2016 with iOS Safari. What seemed to work for me was
giving a GET-parameter to the iframe src and a value for it like this
<iframe width="60%" src="../other/url?cachebust=1" allowfullscreen></iframe>
You can use json_decode(Your variable Name)
:
json_decode($result)
I was getting value from Model.where a column has value like this way
{"dayList":[
{"day":[1,2,3,4],"time":[{"in_time":"10:00"},{"late_time":"15:00"},{"out_time":"16:15"}]
},
{"day":[5,6,7],"time":[{"in_time":"10:00"},{"late_time":"15:00"},{"out_time":"16:15"}]}
]
}
so access this value form model. you have to use this code.
$dayTimeListObject = json_decode($settingAttendance->bio_attendance_day_time,1);
foreach ( $dayTimeListObject['dayList'] as $dayListArr)
{
foreach ( $dayListArr['day'] as $dayIndex)
{
if( $dayIndex == Date('w',strtotime('2020-02-11')))
{
$dayTimeList= $dayListArr['time'];
}
}
}
return $dayTimeList[2]['out_time'] ;
You can also define caste in your Model file.
protected $casts = [
'your-column-name' => 'json'
];
so after this no need of this line .
$dayTimeListObject = json_decode($settingAttendance->bio_attendance_day_time,1);
you can directly access this code.
$settingAttendance->bio_attendance_day_time
References are not objects. They don't have storage of their own, they just reference existing objects. For this reason it doesn't make sense to have arrays of references.
If you want a light-weight object that references another object then you can use a pointer. You will only be able to use a struct
with a reference member as objects in arrays if you provide explicit initialization for all the reference members for all struct
instances. References cannot be default initalized.
Edit: As jia3ep notes, in the standard section on declarations there is an explicit prohibition on arrays of references.
Try this:
var div = $('<div></div>').addClass('bar').text('bla');
var li = $('<li></li>').attr('id', '1234');
li.append(div);
$('body').append(li);
Obviously, it doesn't make sense to append a li to the body directly. Basically, the trick is to construct the DOM elementr tree with $('your html here'). I suggest to use CSS modifiers (.text(), .addClass() etc) as opposed to making jquery parse raw HTML, it will make it much easier to change things later.
The Go reflection package has methods for inspecting the type of variables.
The following snippet will print out the reflection type of a string, integer and float.
package main
import (
"fmt"
"reflect"
)
func main() {
tst := "string"
tst2 := 10
tst3 := 1.2
fmt.Println(reflect.TypeOf(tst))
fmt.Println(reflect.TypeOf(tst2))
fmt.Println(reflect.TypeOf(tst3))
}
Output:
Hello, playground
string
int
float64
see: http://play.golang.org/p/XQMcUVsOja to view it in action.
More documentation here: http://golang.org/pkg/reflect/#Type
I know this is a pretty old question but this was my solution that helped with visualizing the table so you can create a class structure. This is also using the HTML Agility Pack
HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(@"<html><body><p><table id=""foo""><tr><th>hello</th></tr><tr><td>world</td></tr></table></body></html>");
var table = doc.DocumentNode.SelectSingleNode("//table");
var tableRows = table.SelectNodes("tr");
var columns = tableRows[0].SelectNodes("th/text()");
for (int i = 1; i < tableRows.Count; i++)
{
for (int e = 0; e < columns.Count; e++)
{
var value = tableRows[i].SelectSingleNode($"td[{e + 1}]");
Console.Write(columns[e].InnerText + ":" + value.InnerText);
}
Console.WriteLine();
}
You should add the target="_blank"
and rel="noopener noreferrer"
in the anchor tag.
For example:
<a target="_blank" rel="noopener noreferrer" href="http://your_url_here.html">Link</a>
Adding rel="noopener noreferrer"
is not mandatory, but it's a recommended security measure. More information can be found in the links below.
Source:
A couple of days ago I found a very nice solution of this problem. Read about it here. In two words Mike created a AsyncTaskManager that mediates ProgressDialog and AsyncTask. It's very easy to use this solution. You just need to include in your project several interfaces and several classes and in your activity write some simple code and nest your new AsyncTask from BaseTask. I also advice you to read comments because there are some useful tips.
Using one of the subsets method in this question
var list = new List<KeyValuePair<string, int>>() {
new KeyValuePair<string, int>("A", 1),
new KeyValuePair<string, int>("B", 0),
new KeyValuePair<string, int>("C", 0),
new KeyValuePair<string, int>("D", 2),
new KeyValuePair<string, int>("E", 8),
};
int input = 11;
var items = SubSets(list).FirstOrDefault(x => x.Sum(y => y.Value)==input);
EDIT
a full console application:
using System;
using System.Collections.Generic;
using System.Linq;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
var list = new List<KeyValuePair<string, int>>() {
new KeyValuePair<string, int>("A", 1),
new KeyValuePair<string, int>("B", 2),
new KeyValuePair<string, int>("C", 3),
new KeyValuePair<string, int>("D", 4),
new KeyValuePair<string, int>("E", 5),
new KeyValuePair<string, int>("F", 6),
};
int input = 12;
var alternatives = list.SubSets().Where(x => x.Sum(y => y.Value) == input);
foreach (var res in alternatives)
{
Console.WriteLine(String.Join(",", res.Select(x => x.Key)));
}
Console.WriteLine("END");
Console.ReadLine();
}
}
public static class Extenions
{
public static IEnumerable<IEnumerable<T>> SubSets<T>(this IEnumerable<T> enumerable)
{
List<T> list = enumerable.ToList();
ulong upper = (ulong)1 << list.Count;
for (ulong i = 0; i < upper; i++)
{
List<T> l = new List<T>(list.Count);
for (int j = 0; j < sizeof(ulong) * 8; j++)
{
if (((ulong)1 << j) >= upper) break;
if (((i >> j) & 1) == 1)
{
l.Add(list[j]);
}
}
yield return l;
}
}
}
}
You could make use of expect (man expect comes with examples).
Here you go
col-lg-2 : if the screen is large (lg) then this component will take space of 2 elements considering entire row can fit 12 elements ( so you will see that on large screen this component takes 16% space of a row)
col-lg-6 : if the screen is large (lg) then this component will take space of 6 elements considering entire row can fit 12 elements -- when applied you will see that the component has taken half the available space in the row.
Above rule is only applied when the screen is large. when the screen is small this rule is discarded and only one component per row is shown.
Below image shows various screen size widths :
Try changing your CSS to this
button #rock {
background: url('img/rock.png') no-repeat;
}
...provided that the image is in that place
The following example Web.config file will configure IIS to deny access for HTTP requests where the length of the "Content-type" header is greater than 100 bytes.
<configuration>
<system.webServer>
<security>
<requestFiltering>
<requestLimits>
<headerLimits>
<add header="Content-type" sizeLimit="100" />
</headerLimits>
</requestLimits>
</requestFiltering>
</security>
</system.webServer>
</configuration>
Source: http://www.iis.net/configreference/system.webserver/security/requestfiltering/requestlimits
You want to do the check for undefined
first. If you do it the other way round, it will generate an error if the array is undefined.
if (array === undefined || array.length == 0) {
// array empty or does not exist
}
This answer is getting a fair amount of attention, so I'd like to point out that my original answer, more than anything else, addressed the wrong order of the conditions being evaluated in the question. In this sense, it fails to address several scenarios, such as null
values, other types of objects with a length
property, etc. It is also not very idiomatic JavaScript.
The foolproof approach
Taking some inspiration from the comments, below is what I currently consider to be the foolproof way to check whether an array is empty or does not exist. It also takes into account that the variable might not refer to an array, but to some other type of object with a length
property.
if (!Array.isArray(array) || !array.length) {
// array does not exist, is not an array, or is empty
// ? do not attempt to process array
}
To break it down:
Array.isArray()
, unsurprisingly, checks whether its argument is an array. This weeds out values like null
, undefined
and anything else that is not an array.
Note that this will also eliminate array-like objects, such as the arguments
object and DOM NodeList
objects. Depending on your situation, this might not be the behavior you're after.
The array.length
condition checks whether the variable's length
property evaluates to a truthy value. Because the previous condition already established that we are indeed dealing with an array, more strict comparisons like array.length != 0
or array.length !== 0
are not required here.
The pragmatic approach
In a lot of cases, the above might seem like overkill. Maybe you're using a higher order language like TypeScript that does most of the type-checking for you at compile-time, or you really don't care whether the object is actually an array, or just array-like.
In those cases, I tend to go for the following, more idiomatic JavaScript:
if (!array || !array.length) {
// array or array.length are falsy
// ? do not attempt to process array
}
Or, more frequently, its inverse:
if (array && array.length) {
// array and array.length are truthy
// ? probably OK to process array
}
With the introduction of the optional chaining operator (Elvis operator) in ECMAScript 2020, this can be shortened even further:
if (!array?.length) {
// array or array.length are falsy
// ? do not attempt to process array
}
Or the opposite:
if (array?.length) {
// array and array.length are truthy
// ? probably OK to process array
}
In Python3 iteritems()
is no longer supported
Use .items
for field, possible_values in fields.items():
print(field, possible_values)
Bash supports all sorts of wildcards and expansions.
Your exact case would be handled by brace expansion, like so:
$ rm -rf abc.log.2012-03-{14,27,28}
The above would expand to a single command with all three arguments, and be equivalent to typing:
$ rm -rf abc.log.2012-03-14 abc.log.2012-03-27 abc.log.2012-03-28
It's important to note that this expansion is done by the shell, before rm
is even loaded.
I had this problem in Windows 10 and it seemed to be solved after I closed "explorer.exe" in the Task Manager.
Configuring a button (or any widget) in Tkinter is done by calling a configure method "config"
To change the size of a button called button1
you simple call
button1.config( height = WHATEVER, width = WHATEVER2 )
If you know what size you want at initialization these options can be added to the constructor.
button1 = Button(self, text = "Send", command = self.response1, height = 100, width = 100)
The which
command might be useful. man which
It returns 0 if the executable is found and returns 1 if it's not found or not executable:
NAME
which - locate a command
SYNOPSIS
which [-a] filename ...
DESCRIPTION
which returns the pathnames of the files which would
be executed in the current environment, had its
arguments been given as commands in a strictly
POSIX-conformant shell. It does this by searching
the PATH for executable files matching the names
of the arguments.
OPTIONS
-a print all matching pathnames of each argument
EXIT STATUS
0 if all specified commands are
found and executable
1 if one or more specified commands is nonexistent
or not executable
2 if an invalid option is specified
The nice thing about which
is that it figures out if the executable is available in the environment that which
is run in - it saves a few problems...
"bindEmail" it will check email is available or not. if email is exist than Logout will show otherwise Login will show
<li *ngIf="bindEmail;then logout else login"></li>
<ng-template #logout><li><a routerLink="/logout">Logout</a></li></ng-template>
<ng-template #login><li><a routerLink="/login">Login</a></li></ng-template>
Yes there is something similar to pointers in PHP but may not match with what exactly happens in c or c++. Following is one of the example.
$a = "test";
$b = "a";
echo $a;
echo $b;
echo $$b;
//output
test
a
test
This illustrates similar concept of pointers in PHP.
It's better to use script
module for that:
http://docs.ansible.com/script_module.html
In addition to the other answers, which I subscribe, you may consider using the /I
switch of the IF
command.
... the /I switch, if specified, says to do case insensitive string compares.
it may be of help if you want to give case insensitive flexibility to your users to specify the parameters.
IF /I "%1"=="-b" GOTO SPECIFIC
You can use Environment Injector Plugin to set environment variables in Jenkins at job and node levels. Below I will show how to set them at job level.
Manage Jenkins > Manage Plugins
and install the plugin.Configure
screenAdd build step
in Build
section and select Inject environment variables
If you need to define a new environment variable depending on some conditions (e.g. job parameters), then you can refer to this answer.
It looks like you have accidentally declared DataType
as an array rather than as a string.
Change line 3 to:
Dim DataType As String = myTableData.Rows(i).Item(1)
That should work.
If you ever need to do this dynamically, you can use the following:
boolean isInstance(Object object, Class<?> type) {
return type.isInstance(object);
}
You can get an instance of java.lang.Class
by calling the instance method Object::getClass
on any object (returns the Class
which that object is an instance of), or you can do class literals (for example, String.class
, List.class
, int[].class
). There are other ways as well, through the reflection API (which Class
itself is the entry point for).
While existing answers definitely solve the purpose, if your'e looking to replicate nested directory structure under two different subdirectories, then you can do this
mkdir -p {main,test}/{resources,scala/com/company}
It will create following directory structure under the directory from where it is invoked
+-- main
¦ +-- resources
¦ +-- scala
¦ +-- com
¦ +-- company
+-- test
+-- resources
+-- scala
+-- com
+-- company
The example was taken from this link for creating SBT directory structure
Starting with NUnit 2.5 you can use /framework switch e.g.:
nunit-console myassembly.dll /framework:net-1.1
This is from NUnit's help pages.
You can use the instanceof
operator for this. From MDN:
The instanceof operator tests whether the prototype property of a constructor appears anywhere in the prototype chain of an object.
If you don't know what prototypes and prototype chains are I highly recommend looking it up. Also here is a JS (TS works similar in this respect) example which might clarify the concept:
class Animal {_x000D_
name;_x000D_
_x000D_
constructor(name) {_x000D_
this.name = name;_x000D_
}_x000D_
}_x000D_
_x000D_
const animal = new Animal('fluffy');_x000D_
_x000D_
// true because Animal in on the prototype chain of animal_x000D_
console.log(animal instanceof Animal); // true_x000D_
// Proof that Animal is on the prototype chain_x000D_
console.log(Object.getPrototypeOf(animal) === Animal.prototype); // true_x000D_
_x000D_
// true because Object in on the prototype chain of animal_x000D_
console.log(animal instanceof Object); _x000D_
// Proof that Object is on the prototype chain_x000D_
console.log(Object.getPrototypeOf(Animal.prototype) === Object.prototype); // true_x000D_
_x000D_
console.log(animal instanceof Function); // false, Function not on prototype chain_x000D_
_x000D_
_x000D_
The prototype chain in this example is:
animal > Animal.prototype > Object.prototype
The pedantic answer (though not necessarily the most useful one, depending on what you want to do with the result) is:
string.length() * 2
Java strings are physically stored in UTF-16BE
encoding, which uses 2 bytes per code unit, and String.length()
measures the length in UTF-16 code units, so this is equivalent to:
final byte[] utf16Bytes= string.getBytes("UTF-16BE");
System.out.println(utf16Bytes.length);
And this will tell you the size of the internal char
array, in bytes.
Note: "UTF-16"
will give a different result from "UTF-16BE"
as the former encoding will insert a BOM, adding 2 bytes to the length of the array.
You need to take out the $ signs before the row numbers in the formula....and the row number used in the formula should correspond to the first row of data, so if you are applying this to the ("applies to") range $B$2:$B$5 it must be this formula
=$B2>$C2
by using that "relative" version rather than your "absolute" one Excel (implicitly) adjusts the formula for each row in the range, as if you were copying the formula down
This actually works:
getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
getActionBar().setCustomView(R.layout.custom_actionbar);
ActionBar.LayoutParams p = new ActionBar.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
p.gravity = Gravity.CENTER;
You have to define custom_actionbar.xml layout which is as per your requirement e.g. :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#2e2e2e"
android:orientation="vertical"
android:gravity="center"
android:layout_gravity="center">
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/top_banner"
android:layout_gravity="center"
/>
</LinearLayout>
I had the same problem. Turns out I had two copies of the project and my terminal was in the wrong project folder!
You could use IFS (internal field separator) temporally using :
OLD_IFS=$IFS # Stores Default IFS
IFS=$'\n' # Set it to line break
for f in `find test/* -type d`; do
echo $f
done
IFS=$OLD_IFS
<!>
In[1]: def myfunc(a=1, b=2):
In[2]: print(a, b)
In[3]: mydict = {'a': 100, 'b': 200}
In[4]: myfunc(**mydict)
100 200
A few extra details that might be helpful to know (questions I had after reading this and went and tested):
Examples:
Number 1: The function can have parameters that are not included in the dictionary
In[5]: mydict = {'a': 100}
In[6]: myfunc(**mydict)
100 2
Number 2: You can not override a parameter that is already in the dictionary
In[7]: mydict = {'a': 100, 'b': 200}
In[8]: myfunc(a=3, **mydict)
TypeError: myfunc() got multiple values for keyword argument 'a'
Number 3: The dictionary can not have parameters that aren't in the function.
In[9]: mydict = {'a': 100, 'b': 200, 'c': 300}
In[10]: myfunc(**mydict)
TypeError: myfunc() got an unexpected keyword argument 'c'
As requested in comments, a solution to Number 3 is to filter the dictionary based on the keyword arguments available in the function:
In[11]: import inspect
In[12]: mydict = {'a': 100, 'b': 200, 'c': 300}
In[13]: filtered_mydict = {k: v for k, v in mydict.items() if k in [p.name for p in inspect.signature(myfunc).parameters.values()]}
In[14]: myfunc(**filtered_mydict)
100 200
Another option is to accept (and ignore) additional kwargs in your function:
In[15]: def myfunc2(a=None, **kwargs):
In[16]: print(a)
In[17]: mydict = {'a': 100, 'b': 200, 'c': 300}
In[18]: myfunc2(**mydict)
100
Notice further than you can use positional arguments and lists or tuples in effectively the same way as kwargs, here's a more advanced example incorporating both positional and keyword args:
In[19]: def myfunc3(a, *posargs, b=2, **kwargs):
In[20]: print(a, b)
In[21]: print(posargs)
In[22]: print(kwargs)
In[23]: mylist = [10, 20, 30]
In[24]: mydict = {'b': 200, 'c': 300}
In[25]: myfunc3(*mylist, **mydict)
10 200
(20, 30)
{'c': 300}
Many problems for which no efficient algorithm to find an optimal solution is known have heuristic approaches that yield near-optimal results very quickly.
There are some overlaps: "genetic algorithms" is an accepted term, but strictly speaking, those are heuristics, not algorithms.
I found this one from another post (can't remember which) and while not the most elegant, it's simple and as a novice Linux user has given me no trouble
for i in *old_str* ; do mv -v "$i" "${i/\old_str/new_str}" ; done
if you have spaces or other special characters use a \
for i in *old_str\ * ; do mv -v "$i" "${i/\old_str\ /new_str}" ; done
for strings in sub-directories use **
for i in *\*old_str\ * ; do mv -v "$i" "${i/\old_str\ /new_str}" ; done
You might find the Semantic Versioning Specification useful.
For finding value use below
if let a = companies["AAPL"] {
// a is the value
}
For traversing through the dictionary
for (key, value) in companies {
print(key,"---", value)
}
Finally for searching key by value you firstly add the extension
extension Dictionary where Value: Equatable {
func findKey(forValue val: Value) -> Key? {
return first(where: { $1 == val })?.key
}
}
Then just call
companies.findKey(val : "Apple Inc")
To elaborate on the answer @xhh provided, you can append the red, green, and blue to format your string as "rgb(0,0,0)" before returning it.
/**
*
* @param colorStr e.g. "#FFFFFF"
* @return String - formatted "rgb(0,0,0)"
*/
public static String hex2Rgb(String colorStr) {
Color c = new Color(
Integer.valueOf(hexString.substring(1, 3), 16),
Integer.valueOf(hexString.substring(3, 5), 16),
Integer.valueOf(hexString.substring(5, 7), 16));
StringBuffer sb = new StringBuffer();
sb.append("rgb(");
sb.append(c.getRed());
sb.append(",");
sb.append(c.getGreen());
sb.append(",");
sb.append(c.getBlue());
sb.append(")");
return sb.toString();
}
The idea of REpresentational State Transfer is not about accessing data in the simplest way possible.
You suggested using post requests to access JSON, which is a perfectly valid way to access/manipulate data.
REST is a methodology for meaningful access of data. When you see a request in REST, it should immediately be apparant what is happening with the data.
For example:
GET: /cars/make/chevrolet
is likely going to return a list of chevy cars. A good REST api might even incorporate some output options in the querystring like ?output=json
or ?output=html
which would allow the accessor to decide what format the information should be encoded in.
After a bit of thinking about how to reasonably incorporate data typing into a REST API, I've concluded that the best way to specify the type of data explicitly would be via the already existing file extension such as .js
, .json
, .html
, or .xml
. A missing file extension would default to whatever format is default (such as JSON); a file extension that's not supported could return a 501 Not Implemented
status code.
Another example:
POST: /cars/
{ make:chevrolet, model:malibu, colors:[red, green, blue, grey] }
is likely going to create a new chevy malibu in the db with the associated colors. I say likely as the REST api does not need to be directly related to the database structure. It is just a masking interface so that the true data is protected (think of it like accessors and mutators for a database structure).
Now we need to move onto the issue of idempotence. Usually REST implements CRUD over HTTP. HTTP uses GET
, PUT
, POST
and DELETE
for the requests.
A very simplistic implementation of REST could use the following CRUD mapping:
Create -> Post
Read -> Get
Update -> Put
Delete -> Delete
There is an issue with this implementation: Post is defined as a non-idempotent method. This means that subsequent calls of the same Post method will result in different server states. Get, Put, and Delete, are idempotent; which means that calling them multiple times should result in an identical server state.
This means that a request such as:
Delete: /cars/oldest
could actually be implemented as:
Post: /cars/oldest?action=delete
Whereas
Delete: /cars/id/123456
will result in the same server state if you call it once, or if you call it 1000 times.
A better way of handling the removal of the oldest
item would be to request:
Get: /cars/oldest
and use the ID
from the resulting data to make a delete
request:
Delete: /cars/id/[oldest id]
An issue with this method would be if another /cars
item was added between when /oldest
was requested and when the delete
was issued.
I used :
export PATH=$PATH:/Library/PostgreSQL/9.6/bin
pip install psycopg2
I thought of posting a simpler solution for the above problem and indicator numbers can be dynamically changed with only changing one variable value dotCounts=x
what I did goes like this.
1) Create an xml file in drawable folder for page selected indicator named "item_selected".
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval" android:useLevel="true"
android:dither="true">
<size android:height="8dp" android:width="8dp"/>
<solid android:color="@color/image_item_selected_for_dots"/>
</shape>
2) Create one more xml file for unselected indicator named "item_unselected"
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval" android:useLevel="true"
android:dither="true">
<size android:height="8dp" android:width="8dp"/>
<solid android:color="@color/image_item_unselected_for_dots"/>
</shape>
3) Now add add this part of the code at the place where you want to display the indicators for ex below viewPager
in your Layout XML file.
<RelativeLayout
android:id="@+id/viewPagerIndicator"
android:layout_width="match_parent"
android:layout_below="@+id/banner_pager"
android:layout_height="wrap_content"
android:gravity="center">
<LinearLayout
android:id="@+id/viewPagerCountDots"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:gravity="center"
android:orientation="horizontal" />
</RelativeLayout>
4) Add this function on top of your activity file file where your layout is inflated or the above xml file is related to
private int dotsCount=5; //No of tabs or images
private ImageView[] dots;
LinearLayout linearLayout;
private void drawPageSelectionIndicators(int mPosition){
if(linearLayout!=null) {
linearLayout.removeAllViews();
}
linearLayout=(LinearLayout)findViewById(R.id.viewPagerCountDots);
dots = new ImageView[dotsCount];
for (int i = 0; i < dotsCount; i++) {
dots[i] = new ImageView(context);
if(i==mPosition)
dots[i].setImageDrawable(getResources().getDrawable(R.drawable.item_selected));
else
dots[i].setImageDrawable(getResources().getDrawable(R.drawable.item_unselected));
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT
);
params.setMargins(4, 0, 4, 0);
linearLayout.addView(dots[i], params);
}
}
5) Finally in your onCreate method add the following code to reference your layout and handle pageselected positions
drawPageSelectionIndicators(0);
mPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
drawPageSelectionIndicators(position);
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
If you're like me you just want to modify some of the colors in AppCompat, and the only color you need to uniquely change in the dialog is the background. Then all you need to do is set a color for colorBackgroundFloating
.
Here's my basic theme that simply modifies some colors with no nested themes:
<style name="AppTheme" parent="Theme.AppCompat">
<item name="colorPrimary">@color/theme_colorPrimary</item>
<item name="colorPrimaryDark">@color/theme_colorPrimaryDark</item>
<item name="colorAccent">@color/theme_colorAccent</item>
<item name="colorControlActivated">@color/theme_colorControlActivated</item>
<item name="android:windowBackground">@color/theme_bg</item>
<item name="colorBackgroundFloating">@color/theme_dialog_bg</item><!-- Dialog background color -->
<item name="colorButtonNormal">@color/theme_colorPrimary</item>
<item name="colorControlHighlight">@color/theme_colorAccent</item>
</style>
Update for npm 5:
As of npm 5.0.0, installed/uninstalled modules are added/removed as a dependency by default, so the --save
option is no longer needed.
Run
npm uninstall <package>
For example:
npm uninstall mongodb
It will remove the module from the node_modules folder and also the package.json file.
While searching about this problem, I found a recommendation that Page Visibility API should be used. Most modern browsers support this API according to Can I Use: http://caniuse.com/#feat=pagevisibility.
Here's a working example (derived from this snippet):
$(document).ready(function() {
var hidden, visibilityState, visibilityChange;
if (typeof document.hidden !== "undefined") {
hidden = "hidden", visibilityChange = "visibilitychange", visibilityState = "visibilityState";
} else if (typeof document.msHidden !== "undefined") {
hidden = "msHidden", visibilityChange = "msvisibilitychange", visibilityState = "msVisibilityState";
}
var document_hidden = document[hidden];
document.addEventListener(visibilityChange, function() {
if(document_hidden != document[hidden]) {
if(document[hidden]) {
// Document hidden
} else {
// Document shown
}
document_hidden = document[hidden];
}
});
});
Update: The example above used to have prefixed properties for Gecko and WebKit browsers, but I removed that implementation because these browsers have been offering Page Visibility API without a prefix for a while now. I kept Microsoft specific prefix in order to stay compatible with IE10.
'temp_C' is a key inside dictionary that is inside a list that is inside a dictionary
This way works:
wjson['data']['current_condition'][0]['temp_C']
>> '10'
git pull
is like running git fetch
then git merge
git pull --rebase
is like git fetch
then git rebase
git pull
is like a git fetch
+ git merge
.
"In its default mode, git pull is shorthand for
git fetch
followed bygit merge
FETCH_HEAD" More precisely,git pull
runsgit fetch
with the given parameters and then callsgit merge
to merge the retrieved branch heads into the current branch"
(Ref: https://git-scm.com/docs/git-pull)
'But what is the difference between git pull
VS git fetch
+ git rebase
'
Again, from same source:
git pull --rebase
"With --rebase, it runs git rebase instead of git merge."
'the difference between merge
and rebase
'
that is answered here too:
https://git-scm.com/book/en/v2/Git-Branching-Rebasing
(the difference between altering the way version history is recorded)
.... group by to_char(date, 'YYYY')
--> 1989
.... group by to_char(date,'MM')
-->05
.... group by to_char(date,'DD')
--->23
.... group by to_char(date,'MON')
--->MAY
.... group by to_char(date,'YY')
--->89
You could use array slicing instead of splicing. Grep to return the indices you want keep and use slicing:
my @arr = ...;
# run through each item.
my @indicesToKeep = grep { $arr[$_] ne 'foo' } 0..$#arr;
@arr = @arr[@indicesToKeep];
MySQL 5.7 supports computed columns. They call it "Generated Columns" and the syntax is a little weird, but it supports the same options I see in other databases.
https://dev.mysql.com/doc/refman/5.7/en/create-table.html#create-table-generated-columns
If you want to change whether it highlights the best fitting possibility, use:
Ctrl + Alt + Space
The solution of this problem is really very simple. actually Google start using a new authorization mechanism for its User.. you might have seen another line in debug console prompting you to log into your account using any browser.! this is because of new XOAUTH2 authentication mechanism which google start using since 2014. remember.. do not use the ssl over port 465, instead go for tls over 587. this is just because of XOAUTH2 authentication mechanism. if you use ssl over 465, your request will be bounced back.
what you really need to do is .. log into your google account and open up following address https://www.google.com/settings/security/lesssecureapps and check turn on . you have to do this for letting you to connect with the google SMTP because according to new authentication mechanism google bounce back all the requests from all those applications which does not follow any standard encryption technique.. after checking turn on.. you are good to go.. here is the code which worked fine for me..
require_once 'C:\xampp\htdocs\email\vendor\autoload.php';
define ('GUSER','[email protected]');
define ('GPWD','your password');
// make a separate file and include this file in that. call this function in that file.
function smtpmailer($to, $from, $from_name, $subject, $body) {
global $error;
$mail = new PHPMailer(); // create a new object
$mail->IsSMTP(); // enable SMTP
$mail->SMTPDebug = 2; // debugging: 1 = errors and messages, 2 = messages only
$mail->SMTPAuth = true; // authentication enabled
$mail->SMTPSecure = 'tls'; // secure transfer enabled REQUIRED for GMail
$mail->SMTPAutoTLS = false;
$mail->Host = 'smtp.gmail.com';
$mail->Port = 587;
$mail->Username = GUSER;
$mail->Password = GPWD;
$mail->SetFrom($from, $from_name);
$mail->Subject = $subject;
$mail->Body = $body;
$mail->AddAddress($to);
if(!$mail->Send()) {
$error = 'Mail error: '.$mail->ErrorInfo;
return false;
} else {
$error = 'Message sent!';
return true;
}
}
The code of Ellbar works! You need only add using.
1 - using Microsoft.AspNet.Identity;
And... the code of Ellbar:
2 - string currentUserId = User.Identity.GetUserId();
ApplicationUser currentUser = db.Users.FirstOrDefault(x => x.Id == currentUserId);
With this code (in currentUser
), you work the general data of the connected user, if you want extra data... see this link
I know, it is an old question, but no solution worked for me. Here is what I did:
USE master
GO
GRANT CREATE TABLE TO PUBLIC
Repeat this with every permission you need, for example GRANT CREATE DATABASE TO PUBLIC
, ...
You must have the server role "public" (yes, I am captain obvious).
Note 1: GRANT ALL TO PUBLIC
is deprecated, does not work anymore in 2017.
Note 2: I tried to build an msi installer using the wix toolset. This toolset calls a powershell file, wich creates the databases, ... Just to give you some background information :)
You could do the following:
.interrupt
the working threads if they wait for data in some blocking call)writeBatch
in your case) to finish, by calling the Thread.join()
method on the working threads.Some sketchy code:
static volatile boolean keepRunning = true;
In run() you change to
for (int i = 0; i < N && keepRunning; ++i)
writeBatch(pw, i);
In main() you add:
final Thread mainThread = Thread.currentThread();
Runtime.getRuntime().addShutdownHook(new Thread() {
public void run() {
keepRunning = false;
mainThread.join();
}
});
That's roughly how I do a graceful "reject all clients upon hitting Control-C" in terminal.
From the docs:
When the virtual machine begins its shutdown sequence it will start all registered shutdown hooks in some unspecified order and let them run concurrently. When all the hooks have finished it will then run all uninvoked finalizers if finalization-on-exit has been enabled. Finally, the virtual machine will halt.
That is, a shutdown hook keeps the JVM running until the hook has terminated (returned from the run()-method.
It tells the compiler that you're in a Single Thread Apartment model. This is an evil COM thing, it's usually used for Windows Forms (GUI's) as that uses Win32 for its drawing, which is implemented as STA. If you are using something that's STA model from multiple threads then you get corrupted objects.
This is why you have to invoke onto the Gui from another thread (if you've done any forms coding).
Basically don't worry about it, just accept that Windows GUI threads must be marked as STA otherwise weird stuff happens.
PyXML works well.
You didn't say what platform you're using, however if you're on Ubuntu you can get it with sudo apt-get install python-xml
. I'm sure other Linux distros have it as well.
If you're on a Mac, xpath is already installed but not immediately accessible. You can set PY_USE_XMLPLUS
in your environment or do it the Python way before you import xml.xpath:
if sys.platform.startswith('darwin'):
os.environ['PY_USE_XMLPLUS'] = '1'
In the worst case you may have to build it yourself. This package is no longer maintained but still builds fine and works with modern 2.x Pythons. Basic docs are here.
Go to the flask file in microblog, then activate the virtual environment with source bin/activate
, then go to flask/bin and install flask, and the rest of the packages, pip install flask
. You will see flask listed inside bin directory. Try to run ./run.py
again from microblog (or from wherever you have the file).
If you are using SQL Server 2016 or above, you can use sp_execute_external_script
along with R. It has functions for Regular Expression searches, such as grep
and grepl
.
Here's an example for email addresses. I'll query some "people" via the SQL Server database engine, pass the data for those people to R, let R decide which people have invalid email addresses, and have R pass back that subset of people to SQL Server. The "people" are from the [Application].[People]
table in the [WideWorldImporters]
sample database. They get passed to the R engine as a dataframe named InputDataSet
. R uses the grepl function with the "not" operator (exclamation point!) to find which people have email addresses that don't match the RegEx string search pattern.
EXEC sp_execute_external_script
@language = N'R',
@script = N' RegexWithR <- InputDataSet;
OutputDataSet <- RegexWithR[!grepl("([_a-z0-9-]+(\\.[_a-z0-9-]+)*@[a-z0-9-]+(\\.[a-z0-9-]+)*(\\.[a-z]{2,4}))", RegexWithR$EmailAddress), ];',
@input_data_1 = N'SELECT PersonID, FullName, EmailAddress FROM Application.People'
WITH RESULT SETS (([PersonID] INT, [FullName] NVARCHAR(50), [EmailAddress] NVARCHAR(256)))
Note that the appropriate features must be installed on the SQL Server host. For SQL Server 2016, it is called "SQL Server R Services". For SQL Server 2017, it was renamed to "SQL Server Machine Learning Services".
Closing Thoughts Microsoft's implementation of SQL (T-SQL) doesn't have native support for RegEx. This proposed solution may not be any more desirable to the OP than the use of a CLR stored procedure. But it does offer an additional way to approach the problem.
You can use the Unblock-File cmdlet to unblock the execution of this specific script. This prevents you doing any permanent policy changes which you may not want due to security concerns.
Unblock-File path_to_your_script
Source: Unblock-File
hg strip
will completely remove a revision (and any descendants) from the repository.
To use strip you'll need to install MqExtension by adding the following lines to your .hgrc (or mercurial.ini):
[extensions]
mq =
In TortoiseHg the strip command is available in the workbench. Right click on a revision and choose 'Modify history' -> 'Strip'.
Since strip
changes the the repository's history you should only use it on revisions which haven't been shared with anyone yet. If you are using mercurial 2.1+ you can uses phases to track this information. If a commit is still in the draft phase it hasn't been shared with other repositories so you can safely strip it. (Thanks to Zasurus for pointing this out).
string radioListValue = RadioButtonList.Text;
try
{
//Handle the alert pop-up using seithTO alert statement
Alert alert = driver.switchTo().alert();
//Print alert is present
System.out.println("Alert is present");
//get the message which is present on pop-up
String message = alert.getText();
//print the pop-up message
System.out.println(message);
alert.sendKeys("");
//Click on OK button on pop-up
alert.accept();
}
catch (NoAlertPresentException e)
{
//if alert is not present print message
System.out.println("alert is not present");
}
Already good answer there. Just add a benchmark result for StringBuffer and StringBuild performance difference use new instance in loop or use setLength(0) in loop.
The summary is: In a large loop
Very simple benchmark (I just manually changed the code and do different test ):
public class StringBuilderSpeed {
public static final char ch[] = new char[]{'a','b','c','d','e','f','g','h','i'};
public static void main(String a[]){
int loopTime = 99999999;
long startTime = System.currentTimeMillis();
StringBuilder sb = new StringBuilder();
for(int i = 0 ; i < loopTime; i++){
for(char c : ch){
sb.append(c);
}
sb.setLength(0);
}
long endTime = System.currentTimeMillis();
System.out.println("Time cost: " + (endTime - startTime));
}
}
New StringBuilder instance in loop: Time cost: 3693, 3862, 3624, 3742
StringBuilder setLength: Time cost: 3465, 3421, 3557, 3408
New StringBuffer instance in loop: Time cost: 8327, 8324, 8284
StringBuffer setLength Time cost: 22878, 23017, 22894
Again StringBuilder setLength to ensure not my labtop got some issue to use such long for StringBuffer setLength :-) Time cost: 3448
Just create a class or structure that has two members, one List(Of OneItem)
and the other Integer
and send in an instance of that class.
Edit: Sorry, missed that you had problems with one parameter as well. Just look at Thread Constructor (ParameterizedThreadStart) and that page includes a simple sample.
You can write yourself a little console app and use System.Environment.Version to find out the version. Scott Hanselman gives a blog post about it.
Or look in the registry for the installed versions. HKLM\Software\Microsoft\NETFramework Setup\NDP
I found the answer:
Instead of the 2nd Method, add more files to the first array of input files.
public static void CombineMultiplePDFs(string[] fileNames, string outFile)
{
// step 1: creation of a document-object
Document document = new Document();
//create newFileStream object which will be disposed at the end
using (FileStream newFileStream = new FileStream(outFile, FileMode.Create))
{
// step 2: we create a writer that listens to the document
PdfCopy writer = new PdfCopy(document, newFileStream );
if (writer == null)
{
return;
}
// step 3: we open the document
document.Open();
foreach (string fileName in fileNames)
{
// we create a reader for a certain document
PdfReader reader = new PdfReader(fileName);
reader.ConsolidateNamedDestinations();
// step 4: we add content
for (int i = 1; i <= reader.NumberOfPages; i++)
{
PdfImportedPage page = writer.GetImportedPage(reader, i);
writer.AddPage(page);
}
PRAcroForm form = reader.AcroForm;
if (form != null)
{
writer.CopyAcroForm(reader);
}
reader.Close();
}
// step 5: we close the document and writer
writer.Close();
document.Close();
}//disposes the newFileStream object
}
return Task.CompletedTask; // this will make the compiler happy
Good question. I'm using the Bootstrap Dropdown Menu, and needed to execute an event when a Bootstrap Dropdown was hidden. When the dropdown is opened, the containing div with a class name of "button-group" adds a class of "open"; and the button itself has an "aria-expanded" attribute set to true. When the dropdown is closed, that class of "open" is removed from the containing div, and aria-expanded is switched from true to false.
That led me to this question, of how to detect the class change.
With Bootstrap, there are "Dropdown Events" that can be detected. Look for "Dropdown Events" at this link. http://www.w3schools.com/bootstrap/bootstrap_ref_js_dropdown.asp
Here is a quick-and-dirty example of using this event on a Bootstrap Dropdown.
$(document).on('hidden.bs.dropdown', function(event) {
console.log('closed');
});
Now I realize this is more specific than the general question that's being asked. But I imagine other developers trying to detect an open or closed event with a Bootstrap Dropdown will find this helpful. Like me, they may initially go down the path of simply trying to detect an element class change (which apparently isn't so simple). Thanks.
Keep derived data but use the DSTROOT to specify the destination.
Use DEPLOYMENT_LOCATION to force deployment.
Use the undocumented DWARF_DSYM_FOLDER_PATH to copy the dSYM over too.
This allows you to use derived data location from xcodebuild and not have to do wacky stuff to find the app.
xcodebuild -sdk "iphoneos" -workspace Foo.xcworkspace -scheme Foo -configuration "Debug" DEPLOYMENT_LOCATION=YES DSTROOT=tmp DWARF_DSYM_FOLDER_PATH=tmp build
filter(lambda v: v==v, x)
works both for lists and numpy array since v!=v only for NaN
This has to do with having two buttons with the same ID in two different Activities, sometimes Android Studio can't find, You just have to give your button a new ID and re Build the Project
You can try this:
if ($(#remember).is(':checked')){
alert('checked');
}else{
alert('not checked')
}
You need to add the -i flag to the first command, to include the HTTP header in the output. This is required to print headers.
curl -X HEAD -i http://www.google.com
More here: https://serverfault.com/questions/140149/difference-between-curl-i-and-curl-x-head
We have noticed that using the MediaQuery
class can be a bit cumbersome, and it’s also missing a couple of key pieces of information.
Here We have a small Screen helper class, that we use across all our new projects:
class Screen {
static double get _ppi => (Platform.isAndroid || Platform.isIOS)? 150 : 96;
static bool isLandscape(BuildContext c) => MediaQuery.of(c).orientation == Orientation.landscape;
//PIXELS
static Size size(BuildContext c) => MediaQuery.of(c).size;
static double width(BuildContext c) => size(c).width;
static double height(BuildContext c) => size(c).height;
static double diagonal(BuildContext c) {
Size s = size(c);
return sqrt((s.width * s.width) + (s.height * s.height));
}
//INCHES
static Size inches(BuildContext c) {
Size pxSize = size(c);
return Size(pxSize.width / _ppi, pxSize.height/ _ppi);
}
static double widthInches(BuildContext c) => inches(c).width;
static double heightInches(BuildContext c) => inches(c).height;
static double diagonalInches(BuildContext c) => diagonal(c) / _ppi;
}
To use
bool isLandscape = Screen.isLandscape(context)
bool isLargePhone = Screen.diagonal(context) > 720;
bool isTablet = Screen.diagonalInches(context) >= 7;
bool isNarrow = Screen.widthInches(context) < 3.5;
To More, See: https://blog.gskinner.com/archives/2020/03/flutter-simplify-platform-detection-responsive-sizing.html
Take this as a sample code. Replace imageheight and image width with your image dimensions.
<div style="background:yourimage.jpg no-repeat;height:imageheight px;width:imagewidth px">
</div>
select * from yourtable where created < now() and created > '2011-04-25 04:00:00'
If you're in Windows & using MSVC, the MSDN library has sample code that does this.
And here's the code from that link:
#include <windows.h>
#include <tchar.h>
#include <stdio.h>
#include <strsafe.h>
void ErrorHandler(LPTSTR lpszFunction);
int _tmain(int argc, TCHAR *argv[])
{
WIN32_FIND_DATA ffd;
LARGE_INTEGER filesize;
TCHAR szDir[MAX_PATH];
size_t length_of_arg;
HANDLE hFind = INVALID_HANDLE_VALUE;
DWORD dwError=0;
// If the directory is not specified as a command-line argument,
// print usage.
if(argc != 2)
{
_tprintf(TEXT("\nUsage: %s <directory name>\n"), argv[0]);
return (-1);
}
// Check that the input path plus 2 is not longer than MAX_PATH.
StringCchLength(argv[1], MAX_PATH, &length_of_arg);
if (length_of_arg > (MAX_PATH - 2))
{
_tprintf(TEXT("\nDirectory path is too long.\n"));
return (-1);
}
_tprintf(TEXT("\nTarget directory is %s\n\n"), argv[1]);
// Prepare string for use with FindFile functions. First, copy the
// string to a buffer, then append '\*' to the directory name.
StringCchCopy(szDir, MAX_PATH, argv[1]);
StringCchCat(szDir, MAX_PATH, TEXT("\\*"));
// Find the first file in the directory.
hFind = FindFirstFile(szDir, &ffd);
if (INVALID_HANDLE_VALUE == hFind)
{
ErrorHandler(TEXT("FindFirstFile"));
return dwError;
}
// List all the files in the directory with some info about them.
do
{
if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
{
_tprintf(TEXT(" %s <DIR>\n"), ffd.cFileName);
}
else
{
filesize.LowPart = ffd.nFileSizeLow;
filesize.HighPart = ffd.nFileSizeHigh;
_tprintf(TEXT(" %s %ld bytes\n"), ffd.cFileName, filesize.QuadPart);
}
}
while (FindNextFile(hFind, &ffd) != 0);
dwError = GetLastError();
if (dwError != ERROR_NO_MORE_FILES)
{
ErrorHandler(TEXT("FindFirstFile"));
}
FindClose(hFind);
return dwError;
}
void ErrorHandler(LPTSTR lpszFunction)
{
// Retrieve the system error message for the last-error code
LPVOID lpMsgBuf;
LPVOID lpDisplayBuf;
DWORD dw = GetLastError();
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
dw,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &lpMsgBuf,
0, NULL );
// Display the error message and exit the process
lpDisplayBuf = (LPVOID)LocalAlloc(LMEM_ZEROINIT,
(lstrlen((LPCTSTR)lpMsgBuf)+lstrlen((LPCTSTR)lpszFunction)+40)*sizeof(TCHAR));
StringCchPrintf((LPTSTR)lpDisplayBuf,
LocalSize(lpDisplayBuf) / sizeof(TCHAR),
TEXT("%s failed with error %d: %s"),
lpszFunction, dw, lpMsgBuf);
MessageBox(NULL, (LPCTSTR)lpDisplayBuf, TEXT("Error"), MB_OK);
LocalFree(lpMsgBuf);
LocalFree(lpDisplayBuf);
}
I refined the bash solution a bit, so that the more efficient scan is used instead of keys, and printing out array and hash values is supported. My solution also prints out the key name.
redis_print.sh:
#!/bin/bash
# Default to '*' key pattern, meaning all redis keys in the namespace
REDIS_KEY_PATTERN="${REDIS_KEY_PATTERN:-*}"
for key in $(redis-cli --scan --pattern "$REDIS_KEY_PATTERN")
do
type=$(redis-cli type $key)
if [ $type = "list" ]
then
printf "$key => \n$(redis-cli lrange $key 0 -1 | sed 's/^/ /')\n"
elif [ $type = "hash" ]
then
printf "$key => \n$(redis-cli hgetall $key | sed 's/^/ /')\n"
else
printf "$key => $(redis-cli get $key)\n"
fi
done
Note: you can formulate a one-liner of this script by removing the first line of redis_print.sh and commanding: cat redis_print.sh | tr '\n' ';' | awk '$1=$1'
Given a data setup like this:
The formula in cell D2 and copied down is:
=INDEX($B$2:$B$28,MATCH(1,INDEX(($A$2:$A$28=LARGE($A$2:$A$28,ROWS(D$1:D1)))*(COUNTIF(D$1:D1,$B$2:$B$28)=0),),0))
This formula will work even if there are tied OPS scores among players.
Jimmy's answer correctly represents the continuous JavaScript integer spectrum as -9007199254740992 to 9007199254740992 inclusive (sorry 9007199254740993, you might think you are 9007199254740993, but you are wrong! Demonstration below or in jsfiddle).
console.log(9007199254740993);
_x000D_
However, there is no answer that finds/proves this programatically (other than the one CoolAJ86 alluded to in his answer that would finish in 28.56 years ;), so here's a slightly more efficient way to do that (to be precise, it's more efficient by about 28.559999999968312 years :), along with a test fiddle:
/**_x000D_
* Checks if adding/subtracting one to/from a number yields the correct result._x000D_
*_x000D_
* @param number The number to test_x000D_
* @return true if you can add/subtract 1, false otherwise._x000D_
*/_x000D_
var canAddSubtractOneFromNumber = function(number) {_x000D_
var numMinusOne = number - 1;_x000D_
var numPlusOne = number + 1;_x000D_
_x000D_
return ((number - numMinusOne) === 1) && ((number - numPlusOne) === -1);_x000D_
}_x000D_
_x000D_
//Find the highest number_x000D_
var highestNumber = 3; //Start with an integer 1 or higher_x000D_
_x000D_
//Get a number higher than the valid integer range_x000D_
while (canAddSubtractOneFromNumber(highestNumber)) {_x000D_
highestNumber *= 2;_x000D_
}_x000D_
_x000D_
//Find the lowest number you can't add/subtract 1 from_x000D_
var numToSubtract = highestNumber / 4;_x000D_
while (numToSubtract >= 1) {_x000D_
while (!canAddSubtractOneFromNumber(highestNumber - numToSubtract)) {_x000D_
highestNumber = highestNumber - numToSubtract;_x000D_
}_x000D_
_x000D_
numToSubtract /= 2;_x000D_
} _x000D_
_x000D_
//And there was much rejoicing. Yay. _x000D_
console.log('HighestNumber = ' + highestNumber);
_x000D_
Here is my answer:
services.msc
, Enter"D:/Program Files/MySQL/MySQL Server 5.6/bin\mysqld" --defaults-file="D:\ProgramData\MySQL\MySQL Server 5.6\my.ini" MySQL56
Full answer here: https://stackoverflow.com/a/20136523/1316649
If you really mean any and ASCII (not e.g. all Unicode characters):
xxx[\x00-\x7F]+xxx
JavaScript example:
var re = /xxx[\x00-\x7F]+xxx/;
re.test('xxxabcxxx')
// true
re.test('xxx???xxx')
// false
I think this is what you are looking for:
df.drop('Region', axis=1).apply(lambda x: x.mean(), axis=1)
cordova-check-plugins --update=auto --force
use the command line
There is an extension for that, but I have no usage experience yet:
http://ipython.scipy.org/ipython/ipython/attachment/ticket/154/ipy_autoreload.py
You can just basically revert your code using some other built in methods.
byte[] decodedString = Base64.decode(encodedImage, Base64.DEFAULT);
Bitmap decodedByte = BitmapFactory.decodeByteArray(decodedString, 0, decodedString.length);
if you are using mozilla firefox than just install an add-on called firebug
.
In your page press f12 in mozilla and firebug will open.
go for the net
tab in firebug and in this tab go in the xhr
tab.
and reload your page.
you will get 5 options in xhr
Params
Headers
Response
HTML
and Cookies
so by going in response
and html
you can see which response you are getting after your ajax call.
Please let me know if you have any issue.
install pip install pypiwin32
from win32com.client import Dispatch
speak = Dispatch("SAPI.SpVoice").Speak
speak("Ciao")
After you installed the gtts module in cmd: pip install gtts
from gtts import gTTS
import os
tts = gTTS(text="This is the pc speaking", lang='en')
tts.save("pcvoice.mp3")
# to start the file from python
os.system("start pcvoice.mp3")
If your Windows language is different from English, you can launch the Task Scheduler by
For linux in case; you can use wget command
import os
url1 = 'YOUR_URL_WHATEVER'
os.system('wget {}'.format(url1))
Lazy exceptions occur when you fetch an object typically containing a collection which is lazily loaded, and try to access that collection.
You can avoid this problem by
Hibernate.initialize(obj);
Fetch profiles
to select lazy/non-lazy fetching runtimeFurther I would recommend looking at the related
links to your right where this question has been answered many times before. Also see Hibernate lazy-load application design.
Another approach, if you're desperate and don't have access to (a) the code or (b) the command line, then you can use environment variables:
http://docs.oracle.com/javase/7/docs/webnotes/tsg/TSG-Desktop/html/plugin.html.
Specifically for java web start set the environment variable:
JAVAWS_VM_ARGS
and for applets:
_JPI_VM_OPTIONS
e.g.
_JPI_VM_OPTIONS=-Djava.net.preferIPv4Stack=true
Additionally, under Windows global options (for general Java applications) can be set in the Java control plan page under the "Java" tab.
You would need to do something like this. I am typing this off the top of my head, so this may not be 100% correct.
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); CGContextRef context = CGBitmapContextCreate(NULL, 640, 360, 8, 4 * width, colorSpace, kCGImageAlphaPremultipliedFirst); CGColorSpaceRelease(colorSpace); CGContextDrawImage(context, CGRectMake(0,-160,640,360), cgImgFromAVCaptureSession); CGImageRef image = CGBitmapContextCreateImage(context); UIImage* myCroppedImg = [UIImage imageWithCGImage:image]; CGContextRelease(context);
The following code works for me.
//escape the double quotes in json string
String payload="{\"jsonrpc\":\"2.0\",\"method\":\"changeDetail\",\"params\":[{\"id\":11376}],\"id\":2}";
String requestUrl="https://git.eclipse.org/r/gerrit/rpc/ChangeDetailService";
sendPostRequest(requestUrl, payload);
method implementation:
public static String sendPostRequest(String requestUrl, String payload) {
try {
URL url = new URL(requestUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Accept", "application/json");
connection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream(), "UTF-8");
writer.write(payload);
writer.close();
BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream()));
StringBuffer jsonString = new StringBuffer();
String line;
while ((line = br.readLine()) != null) {
jsonString.append(line);
}
br.close();
connection.disconnect();
return jsonString.toString();
} catch (Exception e) {
throw new RuntimeException(e.getMessage());
}
}
Try this:
if(Math.floor(id) == id && $.isNumeric(id))
alert('yes its an int!');
$.isNumeric(id)
checks whether it's numeric or not
Math.floor(id) == id
will then determine if it's really in integer value and not a float. If it's a float parsing it to int will give a different result than the original value. If it's int both will be the same.
If I have open a package in BIDS ("Business Intelligence Development Studio", the tool you use to design the packages), and do not select any item in it, I have a "Properties" pane in the bottom right containing - among others, the MaximumErrorCount
property. If you do not see it, maybe it is minimized and you have to open it (have a look at tabs in the right).
If you cannot find it this way, try the menu: View/Properties Window.
Or try the F4 key.
The .htaccess is either in the root-directory of your webpage or in the directory you want to protect.
Make sure to make them visible in your filesystem, because AFAIK (I'm no unix expert either) files starting with a period are invisible by default on unix-systems.
yes it's possible to print a string to the console.
#include "stdafx.h"
#include <string>
#include <iostream>
using namespace std;
int _tmain(int argc, _TCHAR* argv[])
{
string strMytestString("hello world");
cout << strMytestString;
return 0;
}
stdafx.h isn't pertinent to the solution, everything else is.
<?php
// Use this function and Pass Mixed string and what you want to search in mixed string.
// For Example :
$mixedStr = "hello world. This is john duvey";
$searchStr= "john";
if(strpos($mixedStr,$searchStr)) {
echo "Your string here";
}else {
echo "String not here";
}
Sampling randomizes, so just sample the entire data frame.
df.sample(frac=1)
To set the value of a Boolean attribute, such as disabled, you can specify any value. An empty string or the name of the attribute are recommended values. All that matters is that if the attribute is present at all, regardless of its actual value, its value is considered to be true. The absence of the attribute means its value is false. By setting the value of the disabled attribute to the empty string (""), we are setting disabled to true, which results in the button being disabled.
var f = document.querySelectorAll( "label.disabled input" );
for( var i = 0; i < f.length; i++ )
{
// Reference
var e = f[ i ];
// Actions
e.setAttribute( "disabled", false|null|undefined|""|0|"disabled" );
/*
<input disabled="false"|"null"|"undefined"|empty|"0"|"disabled">
e.getAttribute( "disabled" ) === "false"|"null"|"undefined"|""|"0"|"disabled"
e.disabled === true
*/
e.removeAttribute( "disabled" );
/*
<input>
e.getAttribute( "disabled" ) === null
e.disabled === false
*/
e.disabled = false|null|undefined|""|0;
/*
<input>
e.getAttribute( "disabled" ) === null|null|null|null|null
e.disabled === false
*/
e.disabled = true|" "|"disabled"|1;
/*
<input disabled>
e.getAttribute( "disabled" ) === ""|""|""|""
e.disabled === true
*/
}
public class Console {
public static void Log(Object obj){
System.out.println(obj);
}
}
to call and use as JavaScript just do this:
Console.Log (Object)
I think that's what you mean
The .map
files are for js
and css
(and now ts
too) files that have been minified. They are called SourceMaps. When you minify a file, like the angular.js file, it takes thousands of lines of pretty code and turns it into only a few lines of ugly code. Hopefully, when you are shipping your code to production, you are using the minified code instead of the full, unminified version. When your app is in production, and has an error, the sourcemap will help take your ugly file, and will allow you to see the original version of the code. If you didn't have the sourcemap, then any error would seem cryptic at best.
Same for CSS files. Once you take a SASS or LESS file and compile it to CSS, it looks nothing like its original form. If you enable sourcemaps, then you can see the original state of the file, instead of the modified state.
So, to answer you questions in order:
I hope this makes sense.
As in any unix-based environment, you can use the sudo
command:
$ sudo script-name
It will ask for your password (your own, not a separate root
password).
You can try out
ThisWorkbook.Save
ThisWorkbook.Saved = True
Application.Quit
Couldn't you just pass the arguments
array along?
function mainfunc (func){
// remove the first argument containing the function name
arguments.shift();
window[func].apply(null, arguments);
}
function calledfunc1(args){
// Do stuff here
}
function calledfunc2(args){
// Do stuff here
}
mainfunc('calledfunc1','hello','bye');
mainfunc('calledfunc2','hello','bye','goodbye');
The element hasn't been appended yet, therefore it is equal to null. The Id will never = 0. When you call getElementById(id), it is null since it is not a part of the dom yet unless your static id is already on the DOM. Do a call through the console to see what it returns.
Use the ComboStyle property:
comboBox.DropDownStyle = ComboBoxStyle.DropDownList;
You can also use brackets <> on the URL of the view definition and this input will go into your view function arguments
@app.route('/<name>')
def my_view_func(name):
return name
To make this 'permanent', in my.cnf
:
[client]
default-character-set=utf8
[mysqld]
character-set-server = utf8
To check, go to the client and show some variables:
SHOW VARIABLES LIKE 'character_set%';
Verify that they're all utf8
, except ..._filesystem
, which should be binary
and ..._dir
, that points somewhere in the MySQL installation.
On a BASH shell, you can very simply run:
export PATH=$PATH:`pwd`/somethingelse
No need to save the current working directory into a variable...
Either way is okay in python. I would personally prefer "". but again, either way is okay
>>>x = None
>>>print(x)
None
>>>type(x)
<class 'NoneType'>
>>>x = "hello there"
>>>print(x)
hello there
>>>type(x)
<class 'str'>
>>>
>>>x = ""
>>>print(x)
>>>type(x)
<class 'str'>
>>>x = "hello there"
>>>type(x)
<class 'str'>
>>>print(x)
hello there
Sorry but I don't understand why too many people even think a string was something that could be evaluated. You must change your mindset, really. Forget all connections between strings on one side and expressions, calls, evaluation on the other side.
The (possibly) only connection is via parse(text = ....)
and all good R programmers should know that this is rarely an efficient or safe means to construct expressions (or calls). Rather learn more about substitute()
, quote()
, and possibly the power of using do.call(substitute, ......)
.
fortunes::fortune("answer is parse")
# If the answer is parse() you should usually rethink the question.
# -- Thomas Lumley
# R-help (February 2005)
Dec.2017: Ok, here is an example (in comments, there's no nice formatting):
q5 <- quote(5+5)
str(q5)
# language 5 + 5
e5 <- expression(5+5)
str(e5)
# expression(5 + 5)
and if you get more experienced you'll learn that q5
is a "call"
whereas e5
is an "expression"
, and even that e5[[1]]
is identical to q5
:
identical(q5, e5[[1]])
# [1] TRUE
HttpClient.get()
applies res.json()
automatically and returns Observable<HttpResponse<string>>
. You no longer need to call this function yourself.
Which would you suggest for a new project?
I would suggest neither! Use Spring DAO's JdbcTemplate
together with StoredProcedure
, RowMapper
and RowCallbackHandler
instead.
My own personal experience with Hibernate is that the time saved up-front is more than offset by the endless days you will spend down the line trying to understand and debug issues like unexpected cascading update behaviour.
If you are using a relational DB then the closer your code is to it, the more control you have. Spring's DAO layer allows fine control of the mapping layer, whilst removing the need for boilerplate code. Also, it integrates into Spring's transaction layer which means you can very easily add (via AOP) complicated transactional behaviour without this intruding into your code (of course, you get this with Hibernate too).
You can define the default value in the database designer, or when you create the table. For instance in SQL Server you can set the default vault of a Date field to (getDate()
). Use insertable=false
as mentioned in your column definition. JPA will not specify that column on inserts and the database will generate the value for you.
tail -f /path/to/glassfish/domains/YOURDOMAIN/logs/server.log
You can also upload log from admin console : http://yoururl:4848
To see the contents of array you can use.
1) print_r($array);
or if you want nicely formatted array then:
echo '<pre>'; print_r($array); echo '</pre>';
2) use var_dump($array)
to get more information of the content in the array like datatype and length.
3) you can loop the array using php's foreach();
and get the desired output. more info on foreach in php's documentation website:
http://in3.php.net/manual/en/control-structures.foreach.php
If I understand you correctly, you need to use -SearchBase:
Get-ADUser -SearchBase "OU=Accounts,OU=RootOU,DC=ChildDomain,DC=RootDomain,DC=com" -Filter *
Note that Get-ADUser defaults to using
-SearchScope Subtree
so you don't need to specify it. It's this that gives you all sub-OUs (and sub-sub-OUs, etc.).
You can't.
You can, however, use margins to effect the same result.
I waited a bit on @QuinnTaylor to update his answer, but since he didn't, here's the answer a bit more clearly and in a way that it will load on XCode7 (and perhaps greater). I used this in a Cocoa application, but it likely will work okay with an iOS application as well. Has no ARC errors.
Paste before any @implementation section in your AppDelegate.m or AppDelegate.mm file.
#import <CommonCrypto/CommonCryptor.h>
@implementation NSData (AES256)
- (NSData *)AES256EncryptWithKey:(NSString *)key {
// 'key' should be 32 bytes for AES256, will be null-padded otherwise
char keyPtr[kCCKeySizeAES256+1]; // room for terminator (unused)
bzero(keyPtr, sizeof(keyPtr)); // fill with zeroes (for padding)
// fetch key data
[key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];
NSUInteger dataLength = [self length];
//See the doc: For block ciphers, the output size will always be less than or
//equal to the input size plus the size of one block.
//That's why we need to add the size of one block here
size_t bufferSize = dataLength + kCCBlockSizeAES128;
void *buffer = malloc(bufferSize);
size_t numBytesEncrypted = 0;
CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt, kCCAlgorithmAES128, kCCOptionPKCS7Padding,
keyPtr, kCCKeySizeAES256,
NULL /* initialization vector (optional) */,
[self bytes], dataLength, /* input */
buffer, bufferSize, /* output */
&numBytesEncrypted);
if (cryptStatus == kCCSuccess) {
//the returned NSData takes ownership of the buffer and will free it on deallocation
return [NSData dataWithBytesNoCopy:buffer length:numBytesEncrypted];
}
free(buffer); //free the buffer;
return nil;
}
- (NSData *)AES256DecryptWithKey:(NSString *)key {
// 'key' should be 32 bytes for AES256, will be null-padded otherwise
char keyPtr[kCCKeySizeAES256+1]; // room for terminator (unused)
bzero(keyPtr, sizeof(keyPtr)); // fill with zeroes (for padding)
// fetch key data
[key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];
NSUInteger dataLength = [self length];
//See the doc: For block ciphers, the output size will always be less than or
//equal to the input size plus the size of one block.
//That's why we need to add the size of one block here
size_t bufferSize = dataLength + kCCBlockSizeAES128;
void *buffer = malloc(bufferSize);
size_t numBytesDecrypted = 0;
CCCryptorStatus cryptStatus = CCCrypt(kCCDecrypt, kCCAlgorithmAES128, kCCOptionPKCS7Padding,
keyPtr, kCCKeySizeAES256,
NULL /* initialization vector (optional) */,
[self bytes], dataLength, /* input */
buffer, bufferSize, /* output */
&numBytesDecrypted);
if (cryptStatus == kCCSuccess) {
//the returned NSData takes ownership of the buffer and will free it on deallocation
return [NSData dataWithBytesNoCopy:buffer length:numBytesDecrypted];
}
free(buffer); //free the buffer;
return nil;
}
@end
Paste these two functions in the @implementation class you desire. In my case, I chose @implementation AppDelegate in my AppDelegate.mm or AppDelegate.m file.
- (NSString *) encryptString:(NSString*)plaintext withKey:(NSString*)key {
NSData *data = [[plaintext dataUsingEncoding:NSUTF8StringEncoding] AES256EncryptWithKey:key];
return [data base64EncodedStringWithOptions:kNilOptions];
}
- (NSString *) decryptString:(NSString *)ciphertext withKey:(NSString*)key {
NSData *data = [[NSData alloc] initWithBase64EncodedString:ciphertext options:kNilOptions];
return [[NSString alloc] initWithData:[data AES256DecryptWithKey:key] encoding:NSUTF8StringEncoding];
}
Hosting asp.net 4.5/4.5.1 Web application on Local IIS 1)Be Sure IIS Installation before Visual Installation Installataion then aspnet_regiis will already registerd with IIS
If Not Install IIS and then Register aspnet_regiis with IIS by cmd Editor
For VS2012 and 32 bit OS Run Below code on command editor :
1)Install IIS First & then
2)
cd C:\Windows\Microsoft.NET\Framework\v4.0.30319
C:\Windows\Microsoft.NET\Framework\v4.0.30319> aspnet_regiis -i
For VS2012 and 64 bit OS Below code on command editor:
1)Install IIS First & then
2)
cd C:\Windows\Microsoft.NET\Framework64\v4.0.30319
C:\Windows\Microsoft.NET\Framework64\v4.0.30319> aspnet_regiis -i
BY Following Above Steps Current Version of VS2012 registered with IIS Hosting (VS2012 Web APP)
Create VS2012 Web Application(WebForm/MVC) then Build Application Right Click On WebApplication(WebForm/MVC) go to 'Properties' Click On 'Web' Tab on then 'Use Local IIS Web Server' Then Uncheck 'Use IIS Express' (If Visul Studio 2013 Select 'Local IIS' from Dropdown) Provide Project Url like "http://localhost/MvcDemoApp" Then Click On 'Create Virtual Directory' Button Then Open IIS by Prssing 'Window + R' Run Command and type 'inetmgr' and 'Enter' (or 'OK' Button) Then Expand 'Sites->Default Web Site' you Hosted Successfully. If Still Gets any Server Error like 'The resource cannot be found.' Then Include following code in web.config
<configuration>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"></modules>
And Run Application
If still problem occurs Check application pool by : In iis Right click on application->Manage Application->Advanced setting->General. you see the application pool. then close advance setting window. click on 'Application Pools' you will see the all application pools in middle window. Right click on application pool in which application hosted(DefaultAppPool). click 'Basic Setting' -> Change .Net FrameWork Version to->.Net FrameWork v4.0.30349
It might be a java interpreter defect, but java on HPUX does not do a kill -9, but only a kill -TERM.
I did a small test testDestroy.java:
ProcessBuilder pb = new ProcessBuilder(args);
Process process = pb.start();
Thread.sleep(1000);
process.destroy();
process.waitFor();
And the invocation:
$ tusc -f -p -s signal,kill -e /opt/java1.5/bin/java testDestroy sh -c 'trap "echo TERM" TERM; sleep 10'
dies after 10s (not killed after 1s as expected) and shows:
...
[19999] Received signal 15, SIGTERM, in waitpid(), [caught], no siginfo
[19998] kill(19999, SIGTERM) ............................................................................. = 0
...
Doing the same on windows seems to kill the process fine even if signal is handled (but that might be due to windows not using signals to destroy).
Actually i found Java - Process.destroy() source code for Linux related thread and openjava implementation seems to use -TERM as well, which seems very wrong.
Doesn't the error exactly tell you what's wrong? You're calling requestWindowFeature
and setFeatureInt
after you're calling setContentView
.
By the way, why are you calling setContentView
twice?
Several fixes:
Use the right driver class name for your environment: if you are using an out-of-process Derby server, then you want ClientDriver (and need to use derbyclient.jar), the hostname and port, etc. If you want an in-process Derby server, then you want derby.jar, EmbeddedDriver, and a URL that is appropriate for an embedded database.
Put your driver JAR file only in Tomcat's lib/
directory.
Don't put anything in Tomcat's conf/context.xml
: there's really no reason for it. Instead, use your webapp's META-INF/context.xml
to define your <Resource>
.
The error "Cannot create JDBC driver of class '' for connect URL 'null'
usually occurs because the JDBC driver is not in the right place (or in too many places, like Tomcat's lib/
directory but also in the webapp's WEB-INF/lib/
directory). Please verify that you have the right driver JAR file in the right place.
This is a very broad question, so I am going to give a broad answer.
That is all that I can tell from the above screenshot. However, if I were to speculate, you probably have an IO subsystem that is too slow to keep up with the demand. This could be caused by missing indexes or an actually too slow disk. Keep in mind, that 15000 reads for a single OLTP query is slightly high but not uncommon.
for i in `seq 1 20`; do curl http://url; done
Or if you want to get timing information back, use ab
:
ab -n 20 http://url/
Splitting image to tiles of MxN pixels (assuming im is numpy.ndarray):
tiles = [im[x:x+M,y:y+N] for x in range(0,im.shape[0],M) for y in range(0,im.shape[1],N)]
In the case you want to split the image to four pieces:
M = im.shape[0]//2
N = im.shape[1]//2
tiles[0] holds the upper left tile
TRY THIS CODE
// Boolean flag used to determine when a character other than a number is entered.
private bool nonNumberEntered = false;
// Handle the KeyDown event to determine the type of character entered into the control.
private void textBox1_KeyDown(object sender, KeyEventArgs e)
{
// Initialize the flag to false.
nonNumberEntered = false;
// Determine whether the keystroke is a number from the top of the keyboard.
if (e.KeyCode < Keys.D0 || e.KeyCode > Keys.D9)
{
// Determine whether the keystroke is a number from the keypad.
if (e.KeyCode < Keys.NumPad0 || e.KeyCode > Keys.NumPad9)
{
// Determine whether the keystroke is a backspace.
if (e.KeyCode != Keys.Back)
{
// A non-numerical keystroke was pressed.
// Set the flag to true and evaluate in KeyPress event.
nonNumberEntered = true;
}
}
}
}
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (nonNumberEntered == true)
{
MessageBox.Show("Please enter number only...");
e.Handled = true;
}
}
Source is http://msdn.microsoft.com/en-us/library/system.windows.forms.control.keypress(v=VS.90).aspx
Android has a method of chaining views together in its constraint based layout system that I wanted to mimic. Searches brought me here but none of the answers quite worked. I didn't want to use StackViews because they tend to cause me more grief down the line than they save up front. I ended up creating a solution that used UILayoutGuides placed between the views. Controlling their width's allows different types of distributions, chain styles in Android parlance. The function accepts a leading and trailing anchor instead of a parent view. This allows the chain to be placed between two arbitrary views rather than distributed inside of the parent view. It does use UILayoutGuide
which is only available in iOS 9+ but that shouldn't be a problem anymore.
public enum LayoutConstraintChainStyle {
case spread //Evenly distribute between the anchors
case spreadInside //Pin the first & last views to the sides and then evenly distribute
case packed //The views have a set space but are centered between the anchors.
}
public extension NSLayoutConstraint {
static func chainHorizontally(views: [UIView],
leadingAnchor: NSLayoutXAxisAnchor,
trailingAnchor: NSLayoutXAxisAnchor,
spacing: CGFloat = 0.0,
style: LayoutConstraintChainStyle = .spread) -> [NSLayoutConstraint] {
var constraints = [NSLayoutConstraint]()
guard views.count > 1 else { return constraints }
guard let first = views.first, let last = views.last, let superview = first.superview else { return constraints }
//Setup the chain of views
var distributionGuides = [UILayoutGuide]()
var previous = first
let firstGuide = UILayoutGuide()
superview.addLayoutGuide(firstGuide)
distributionGuides.append(firstGuide)
firstGuide.identifier = "ChainDistribution\(distributionGuides.count)"
constraints.append(firstGuide.leadingAnchor.constraint(equalTo: leadingAnchor))
constraints.append(first.leadingAnchor.constraint(equalTo: firstGuide.trailingAnchor, constant: spacing))
views.dropFirst().forEach { view in
let g = UILayoutGuide()
superview.addLayoutGuide(g)
distributionGuides.append(g)
g.identifier = "ChainDistribution\(distributionGuides.count)"
constraints.append(contentsOf: [
g.leadingAnchor.constraint(equalTo: previous.trailingAnchor),
view.leadingAnchor.constraint(equalTo: g.trailingAnchor)
])
previous = view
}
let lastGuide = UILayoutGuide()
superview.addLayoutGuide(lastGuide)
constraints.append(contentsOf: [lastGuide.leadingAnchor.constraint(equalTo: last.trailingAnchor),
lastGuide.trailingAnchor.constraint(equalTo: trailingAnchor)])
distributionGuides.append(lastGuide)
//Space the according to the style.
switch style {
case .packed:
if let first = distributionGuides.first, let last = distributionGuides.last {
constraints.append(first.widthAnchor.constraint(greaterThanOrEqualToConstant: spacing))
constraints.append(last.widthAnchor.constraint(greaterThanOrEqualToConstant: spacing))
constraints.append(last.widthAnchor.constraint(equalTo: first.widthAnchor))
constraints.append(contentsOf:
distributionGuides.dropFirst().dropLast()
.map { $0.widthAnchor.constraint(equalToConstant: spacing) }
)
}
case .spread:
if let first = distributionGuides.first {
constraints.append(contentsOf:
distributionGuides.dropFirst().map { $0.widthAnchor.constraint(equalTo: first.widthAnchor) })
}
case .spreadInside:
if let first = distributionGuides.first, let last = distributionGuides.last {
constraints.append(first.widthAnchor.constraint(equalToConstant: spacing))
constraints.append(last.widthAnchor.constraint(equalToConstant: spacing))
let innerGuides = distributionGuides.dropFirst().dropLast()
if let key = innerGuides.first {
constraints.append(contentsOf:
innerGuides.dropFirst().map { $0.widthAnchor.constraint(equalTo: key.widthAnchor) }
)
}
}
}
return constraints
}
I use this class:
public class JsonContent : StringContent
{
public JsonContent(object obj) :
base(JsonConvert.SerializeObject(obj), Encoding.UTF8, "application/json")
{ }
}
Sample of usage:
new HttpClient().PostAsync("http://...", new JsonContent(new { x = 1, y = 2 }));
Try this:
On first row set value 1 (e.g cell A1
)
on next row set: =A1+1
Finally autocomplete the remaining rows
If you need to support IE8 and, therefore, can't use methods such as reduce or isArray, here is a possible solution. It is a verbose approach to help you to understand the recursive algorithm.
function flattenArray(a){
var aFinal = [];
(function recursiveArray(a){
var i,
iCount = a.length;
if (Object.prototype.toString.call(a) === '[object Array]') {
for (i = 0; i < iCount; i += 1){
recursiveArray(a[i]);
}
} else {
aFinal.push(a);
}
})(a);
return aFinal;
}
var aMyArray = [6,3,4,[12,14,15,[23,24,25,[34,35],27,28],56],3,4];
var result = flattenArray(aMyArray);
console.log(result);
Do not run the application using node.js icon.
Go to All Programmes->Node.js->Node.js command prompt.
Below is example screen shot.
exports.handler = async (event) => {
let query = event.queryStringParameters;
console.log(`id: ${query.id}`);
const response = {
statusCode: 200,
body: "Hi",
};
return response;
};
How about this little while
loop as a solution?
private ArrayList<Object> list = new ArrayList<Object>();
private void addObject(int i, Object object) {
while(list.size() < i) {
list.add(list.size(), null);
}
list.add(i, object);
}
....
addObject(1, object1)
addObject(3, object3)
addObject(2, object2)
This morning, some packages in my system updated, and left me with this error message. I am using Ubuntu 18.04.
Apparently, something in the update changed the username and group to numbers, instead of root
, as so:
# There are insecure files: /usr/share/zsh/vendor-completions/_code
# sudo ls -alh
-rw-r--r-- 1 131 142 2.6K 2019-10-10 16:28 _code
I simply changed the user and group for this file back to root
and the problem went away. I did not need to change any permissions, and would caution against doing so unless the underlying cause of the problem is understood.
sudo chown root _code && sudo chgrp root _code
After switching 131
and 142
back to root
, this error message from zsh went away.
Yes, MySQL allows multiple NULLs in a column with a unique constraint.
CREATE TABLE table1 (x INT NULL UNIQUE);
INSERT table1 VALUES (1);
INSERT table1 VALUES (1); -- Duplicate entry '1' for key 'x'
INSERT table1 VALUES (NULL);
INSERT table1 VALUES (NULL);
SELECT * FROM table1;
Result:
x
NULL
NULL
1
This is not true for all databases. SQL Server 2005 and older, for example, only allows a single NULL value in a column that has a unique constraint.
I couldn't get the form suggested by @thoredge to work in Gradle 1.11, but this works for me:
home = System.getenv('HOME')
It helps to keep in mind that anything that works in pure Java will work in Gradle too.
I was also facing this problem for some time but I realized it's not because of dialog
in my case it's because of ActionMode
. So if you are trying to finish activity when an ActionMode
is open it will cause this problem. In your activity's onPause
finish the action mode.
private ActionMode actionMode;
@Override
public void onActionModeStarted(ActionMode mode) {
super.onActionModeStarted(mode);
actionMode = mode;
}
@Override
protected void onPause() {
super.onPause();
if (actionMode != null) actionMode.finish();
}
You could use the Get
method and check for null
as the method will return null
if the NameValueCollection does not contain the specified key.
See MSDN.
It is not possible.
ObjectA.PropertyA.PropertyB
will fail if ObjectA
is null due to null dereferencing, which is an error.
if(ObjectA != null && ObjectA.PropertyA
... works due to short circuiting, ie ObjectA.PropertyA
will never be checked if ObjectA
is null
.
The first way you propose is the best and most clear with intent. If anything you could try to redesign without having to rely on so many nulls.
your question is basically O/RM's vs hand writing SQL
Take a look at some of the other O/RM solutions out there, L2S isn't the only one (NHibernate, ActiveRecord)
http://en.wikipedia.org/wiki/List_of_object-relational_mapping_software
to address the specific questions:
In Java, there are two types of exceptions: checked exceptions and un-checked exceptions. A checked exception must be handled explicitly by the code, whereas, an un-checked exception does not need to be explicitly handled.
For checked exceptions, you either have to put a try/catch block around the code that could potentially throw the exception, or add a "throws" clause to the method, to indicate that the method might throw this type of exception (which must be handled in the calling class or above).
Any exception that derives from "Exception" is a checked exception, whereas a class that derives from RuntimeException is un-checked. RuntimeExceptions do not need to be explicitly handled by the calling code.
Try this:--
1.object_id
#=> 3
2.object_id
#=> 5
a = 1
#=> 1
a.object_id
#=> 3
b = 2
#=> 2
b.object_id
#=> 5
identifier a contains object_id 3 for value object 1 and identifier b contains object_id 5 for value object 2.
Now do this:--
a.object_id = 5
#=> error
a = b
#value(object_id) at b copies itself as value(object_id) at a. value object 2 has object_id 5
#=> 2
a.object_id
#=> 5
Now, a and b both contain same object_id 5 which refers to value object 2. So, Ruby variable contains object_ids to refer to value objects.
Doing following also gives error:--
c
#=> error
but doing this won't give error:--
5.object_id
#=> 11
c = 5
#=> value object 5 provides return type for variable c and saves 5.object_id i.e. 11 at c
#=> 5
c.object_id
#=> 11
a = c.object_id
#=> object_id of c as a value object changes value at a
#=> 11
11.object_id
#=> 23
a.object_id == 11.object_id
#=> true
a
#=> Value at a
#=> 11
Here identifier a returns value object 11 whose object id is 23 i.e. object_id 23 is at identifier a, Now we see an example by using method.
def foo(arg)
p arg
p arg.object_id
end
#=> nil
11.object_id
#=> 23
x = 11
#=> 11
x.object_id
#=> 23
foo(x)
#=> 11
#=> 23
arg in foo is assigned with return value of x. It clearly shows that argument is passed by value 11, and value 11 being itself an object has unique object id 23.
Now see this also:--
def foo(arg)
p arg
p arg.object_id
arg = 12
p arg
p arg.object_id
end
#=> nil
11.object_id
#=> 23
x = 11
#=> 11
x.object_id
#=> 23
foo(x)
#=> 11
#=> 23
#=> 12
#=> 25
x
#=> 11
x.object_id
#=> 23
Here, identifier arg first contains object_id 23 to refer 11 and after internal assignment with value object 12, it contains object_id 25. But it does not change value referenced by identifier x used in calling method.
Hence, Ruby is pass by value and Ruby variables do not contain values but do contain reference to value object.
?"["
pretty much covers the various ways of accessing elements of things.
Under usage it lists these:
x[i]
x[i, j, ... , drop = TRUE]
x[[i, exact = TRUE]]
x[[i, j, ..., exact = TRUE]]
x$name
getElement(object, name)
x[i] <- value
x[i, j, ...] <- value
x[[i]] <- value
x$i <- value
The second item is sufficient for your purpose
Under Arguments
it points out that with [
the arguments i
and j
can be numeric, character or logical
So these work:
data[1,1]
data[1,"V1"]
As does this:
data$V1[1]
and keeping in mind a data frame is a list of vectors:
data[[1]][1]
data[["V1"]][1]
will also both work.
So that's a few things to be going on with. I suggest you type in the examples at the bottom of the help page one line at a time (yes, actually type the whole thing in one line at a time and see what they all do, you'll pick up stuff very quickly and the typing rather than copypasting is an important part of helping to commit it to memory.)
import java.io.IOException;
class ExamTest{
public static void main(String args[]) throws IOException{
int sn=System.in.read();
System.out.println(sn);
}
}
If you want get char input you have to cast like this: char sn=(char) System.in.read()
The value byte is returned as int in the range 0 to 255. However, unlike in other languages’ methods, System.in.read()
reads only a byte at a time.
For educational purposes, let me add two more Numpy solutions (which are slower than the cumsum solution):
import numpy as np
from numpy.lib.stride_tricks import as_strided
def ra_strides(arr, window):
''' Running average using as_strided'''
n = arr.shape[0] - window + 1
arr_strided = as_strided(arr, shape=[n, window], strides=2*arr.strides)
return arr_strided.mean(axis=1)
def ra_add(arr, window):
''' Running average using add.reduceat'''
n = arr.shape[0] - window + 1
indices = np.array([0, window]*n) + np.repeat(np.arange(n), 2)
arr = np.append(arr, 0)
return np.add.reduceat(arr, indices )[::2]/window
Functions used: as_strided, add.reduceat
I was having this problem in Eclipse Luna (4.4.2)
Without step 4. a vertical strip near line numbers remained the older background color
By default, Log4j
logs to standard output and that means you should be able to see log messages on your Eclipse's console view. To log to a file you need to use a FileAppender
explicitly by defining it in a log4j.properties
file in your classpath.
Create the following log4j.properties
file in your classpath. This allows you to log your message to both a file as well as your console.
log4j.rootLogger=debug, stdout, file
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=example.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%p %t %c - %m%n
Note: The above creates an example.log in your current working directory (i.e. Eclipse's project directory) so that the same log4j.properties could work with different projects without overwriting each other's logs.
References:
Apache log4j 1.2 - Short introduction to log4j
Curently in nested fragment, the nested one(s) are only supported if they are generated programmatically! So at this time no nested fragment layout are supported in xml layout scheme!
Create the environment with virtualenv --system-site-packages
. Then, activate the virtualenv and when you want things installed in the virtualenv rather than the system python, use pip install --ignore-installed
or pip install -I
. That way pip will install what you've requested locally even though a system-wide version exists. Your python interpreter will look first in the virtualenv's package directory, so those packages should shadow the global ones.
I had to use a slightly extended version @Erwin Brandstetter used:
DO
$do$
DECLARE
_db TEXT := 'some_db';
_user TEXT := 'postgres_user';
_password TEXT := 'password';
BEGIN
CREATE EXTENSION IF NOT EXISTS dblink; -- enable extension
IF EXISTS (SELECT 1 FROM pg_database WHERE datname = _db) THEN
RAISE NOTICE 'Database already exists';
ELSE
PERFORM dblink_connect('host=localhost user=' || _user || ' password=' || _password || ' dbname=' || current_database());
PERFORM dblink_exec('CREATE DATABASE ' || _db);
END IF;
END
$do$
I had to enable the dblink
extension, plus i had to provide the credentials for dblink.
Works with Postgres 9.4.
This code works for me:
import groovy.io.FileType
def list = []
def dir = new File("path_to_parent_dir")
dir.eachFileRecurse (FileType.FILES) { file ->
list << file
}
Afterwards the list variable contains all files (java.io.File) of the given directory and its subdirectories:
list.each {
println it.path
}
import json
array = '{"fruits": ["apple", "banana", "orange"]}'
data = json.loads(array)
print data['fruits']
# the print displays:
# [u'apple', u'banana', u'orange']
You had everything you needed. data
will be a dict, and data['fruits']
will be a list
Removing CocoaPods from a project is possible, but not currently automated by the CLI. First thing, if the only issue you have is not being able to use an xcworkspace
you can use CocoaPods with just xcodeproj
s by using the --no-integrate
flag which will produce the Pods.xcodeproj
but not a workspace. Then you can add this xcodeproj
as a subproject to your main xcodeproj
.
If you really want to remove all CocoaPods integration you need to do a few things:
NOTE editing some of these things if done incorrectly could break your main project. I strongly encourage you to check your projects into source control just in case. Also these instructions are for CocoaPods version 0.39.0
, they could change with new versions.
Podfile
Podfile.lock
and your Pods
directory)xcworkspace
xcodeproj
file, delete the references to Pods.xcconfig
and libPods.a
(in the Frameworks
group)Build Phases
delete the Copy Pods Resources
, Embed Pods Frameworks
and Check Pods Manifest.lock
phases.After those steps you should be set with a single xcodeproj
that existed before you integrated CocoaPods. If I missed anything let me know and I will edit this.
Also we're always looking for suggestions for how to improve CocoaPods so if you have an issues please submit them in our issue tracker so we can come up with a way to fix them!
EDIT
As shown by Jack Wu in the comments there is a third party CocoaPods plugin that can automate these steps for you. It can be found here. Note that it is a third party plugin and might not always be updated when CocoaPods is. Also note that it is made by a CocoaPods core team member so that problem won't be a problem.
For enable PHP Extension intl , follow the Steps..
Compile with debug information:
gcc -g -o main main.c
Separate the debug information:
objcopy --only-keep-debug main main.debug
or
cp main main.debug
strip --only-keep-debug main.debug
Strip debug information from origin file:
objcopy --strip-debug main
or
strip --strip-debug --strip-unneeded main
debug by debuglink mode:
objcopy --add-gnu-debuglink main.debug main
gdb main
You can also use exec file and symbol file separatly:
gdb -s main.debug -e main
or
gdb
(gdb) exec-file main
(gdb) symbol-file main.debug
For details:
(gdb) help exec-file
(gdb) help symbol-file
Ref:
https://sourceware.org/gdb/onlinedocs/gdb/Files.html#Files
https://sourceware.org/gdb/onlinedocs/gdb/Separate-Debug-Files.html
This isn't pretty, but it works:
<script type="text/javascript">
document.write('<script type="text/javascript" src="other.js"></script>');
</script>
<script type="text/javascript">
functionFromOther();
</script>
Or
<script type="text/javascript">
document.write('<script type="text/javascript" src="other.js"></script>');
window.onload = function() {
functionFromOther();
};
</script>
The script must be included either in a separate <script>
tag or before window.onload()
.
This will not work:
<script type="text/javascript">
document.write('<script type="text/javascript" src="other.js"></script>');
functionFromOther(); // Error
</script>
The same can be done with creating a node, as Pointy did, but only in FF. You have no guarantee when the script will be ready in other browsers.
Being an XML Purist I really hate this. But it does work predictably. You could easily wrap those ugly document.write()
s so you don't have to look at them. You could even do tests and create a node and append it then fall back on document.write()
.
Assuming that you have access to Prototype, this could work. I wrote this code for myself just a few minutes ago; I only needed a single key at a time, so this isn't time efficient for big lists of key:value pairs or for spitting out multiple key names.
function key(int) {
var j = -1;
for(var i in this) {
j++;
if(j==int) {
return i;
} else {
continue;
}
}
}
Object.prototype.key = key;
This is numbered to work the same way that arrays do, to save headaches. In the case of your code:
buttons.key(0) // Should result in "button1"
This work for me
from flask import Flask
from flask import Response
app = Flask(__name__)
@app.route("/")
def home():
return Response(headers={'Access-Control-Allow-Origin':'*'})
if __name__ == "__main__":
app.run()
It's ugly, but you can use the setfacl command to achieve exactly what you want.
On a Solaris machine, I have a file that contains the acls for users and groups. Unfortunately, you have to list all of the users (at least I couldn't find a way to make this work otherwise):
user::rwx
user:user_a:rwx
user:user_b:rwx
...
group::rwx
mask:rwx
other:r-x
default:user:user_a:rwx
default:user:user_b:rwx
....
default:group::rwx
default:user::rwx
default:mask:rwx
default:other:r-x
Name the file acl.lst and fill in your real user names instead of user_X.
You can now set those acls on your directory by issuing the following command:
setfacl -f acl.lst /your/dir/here
Define a constructor in the abstract class which sets the field so that the concrete implementations are per the specification required to call/override the constructor.
E.g.
public abstract class AbstractTable {
protected String name;
public AbstractTable(String name) {
this.name = name;
}
}
When you extend AbstractTable
, the class won't compile until you add a constructor which calls super("somename")
.
public class ConcreteTable extends AbstractTable {
private static final String NAME = "concreteTable";
public ConcreteTable() {
super(NAME);
}
}
This way the implementors are required to set name
. This way you can also do (null)checks in the constructor of the abstract class to make it more robust. E.g:
public AbstractTable(String name) {
if (name == null) throw new NullPointerException("Name may not be null");
this.name = name;
}
If you are not able to add a property to system.net
class library.
Then, add in Global.asax file:
ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072; //TLS 1.2
ServicePointManager.SecurityProtocol = (SecurityProtocolType)768; //TLS 1.1
And you can use it in a function, at the starting line:
ServicePointManager.SecurityProtocol = (SecurityProtocolType)768 | (SecurityProtocolType)3072;
And, it's being useful for STRIPE
payment gateway, which only supports TLS 1.1, TLS 1.2.
EDIT:
After so many questions on .NET 4.5 is installed on my server or not... here is the screenshot of Registry
on my production server:
I have only .NET framework 4.0 installed.
In Go:
package main
import (
"bufio"
"fmt"
"os"
"strconv"
)
func main() {
scanner := bufio.NewScanner(os.Stdin)
sum := int64(0)
for scanner.Scan() {
v, err := strconv.ParseInt(scanner.Text(), 10, 64)
if err != nil {
fmt.Fprintf(os.Stderr, "Not an integer: '%s'\n", scanner.Text())
os.Exit(1)
}
sum += v
}
fmt.Println(sum)
}
If you're talking HTML4, its list of attributes might help you with the subtleties. They're not interchangeable.
Suppose there's a file test.txt
in Root Folder, and want to move it to \TxtFolder
,
You can try
move %~dp0\test.txt %~dp0\TxtFolder
.
reference answer: relative path in BAT script
To get a copy in a file on the local file-system, this rickety utility from the Windows start button menu worked: "C:\Program Files (x86)\Microsoft SQL Server\110\DTS\Binn\DTSWizard.exe"
I also use Stefan Petre’s http://www.eyecon.ro/bootstrap-datepicker and it does not work with Bootstrap 3 without modification. Note that http://eternicode.github.io/bootstrap-datepicker/ is a fork of Stefan Petre's code.
You have to change your markup (the sample markup will not work) to use the new CSS and form grid layout in Bootstrap 3. Also, you have to modify some CSS and JavaScript in the actual bootstrap-datepicker implementation.
Here is my solution:
<div class="form-group row">
<div class="col-xs-8">
<label class="control-label">My Label</label>
<div class="input-group date" id="dp3" data-date="12-02-2012" data-date-format="mm-dd-yyyy">
<input class="form-control" type="text" readonly="" value="12-02-2012">
<span class="input-group-addon"><i class="glyphicon glyphicon-calendar"></i></span>
</div>
</div>
</div>
CSS changes in datepicker.css on lines 176-177:
.input-group.date .input-group-addon i,
.input-group.date .input-group-addon i {
Javascript change in datepicker-bootstrap.js on line 34:
this.component = this.element.is('.date') ? this.element.find('.input-group-addon') : false;
UPDATE
Using the newer code from http://eternicode.github.io/bootstrap-datepicker/ the changes are as follows:
CSS changes in datepicker.css on lines 446-447:
.input-group.date .input-group-addon i,
.input-group.date .input-group-addon i {
Javascript change in datepicker-bootstrap.js on line 46:
this.component = this.element.is('.date') ? this.element.find('.input-group-addon, .btn') : false;
Finally, the JavaScript to enable the datepicker (with some options):
$(".input-group.date").datepicker({ autoclose: true, todayHighlight: true });
Tested with Bootstrap 3.0 and JQuery 1.9.1. Note that this fork is better to use than the other as it is more feature rich, has localization support and auto-positions the datepicker based on the control position and window size, avoiding the picker going off the screen which was a problem with the older version.
I was getting this problem from my Dockerfile as I had:
RUN bash < <(curl -s -S -L https://raw.githubusercontent.com/moovweb/gvm/master/binscripts/gvm-installer)
However, according to this issue, it was solved:
The exec form makes it possible to avoid shell string munging, and to
RUN
commands using a base image that does not contain/bin/sh
.Note
To use a different shell, other than
/bin/sh
, use the exec form passing in the desired shell. For example,RUN ["/bin/bash", "-c", "echo hello"]
RUN ["/bin/bash", "-c", "bash < <(curl -s -S -L https://raw.githubusercontent.com/moovweb/gvm/master/binscripts/gvm-installer)"]
Notice the quotes around each parameter.
Need to enable Directions API as well in the Google API Console. I have the following enabled:
I also have Geolocation API enabled but the console doesn't show it as being used (0 requests). But maybe it's not real-time reporting so doesn't hurt to enable anyway.
Check if Xcode is installed or not:
$ gcc --version
$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
$ brew doctor
$ brew update
http://techsharehub.blogspot.com/2013/08/brew-command-not-found.html "click here for exact instruction updates"
MAY BE INTERESTING TO YOU:
In java, string objects are immutable. Immutable simply means unmodifiable or unchangeable.
Once string object is created its data or state can't be changed but a new string object is created.
if it doesn't work after chmod'ing make sure you aren't trying to execute it inside the /tmp directory.
If you are trying to keep some parameters, while changing others, be sure to copy the state of the vue router query and not reuse it.
This works, since you are making an unreferenced copy:
const query = Object.assign({}, this.$route.query);
query.page = page;
query.limit = rowsPerPage;
await this.$router.push({ query });
while below will lead to Vue Router thinking you are reusing the same query and lead to the NavigationDuplicated
error:
const query = this.$route.query;
query.page = page;
query.limit = rowsPerPage;
await this.$router.push({ query });
Of course, you could decompose the query object, such as follows, but you'll need to be aware of all the query parameters to your page, otherwise you risk losing them in the resultant navigation.
const { page, limit, ...otherParams } = this.$route.query;
await this.$router.push(Object.assign({
page: page,
limit: rowsPerPage
}, otherParams));
);
Note, while the above example is for push()
, this works with replace()
too.
Tested with vue-router 3.1.6.
Geometric calculations for GIS or cartography, such as finding the edge of a circle.
In the second version, you're passing the String returned from this.id
. Not the element itself.
So id.value
won't give you what you want.
You would need to pass the element with this
.
doSomething(this)
then:
function(el){
var value = el.value;
...
}
Note: In some browsers, the second one would work if you did:
window[id].value
because element IDs are a global property, but this is not safe.
It makes the most sense to just pass the element with this
instead of fetching it again with its ID.
Not sure I fully understand your question, but is this what you want to do?
pd.DataFrame(data=dict(s1=s1, s2=s2), index=s1.index)
(index=s1.index
is not even necessary here)
You can use an Intent for this:
Uri uriUrl = Uri.parse("http://www.google.com/");
Intent launchBrowser = new Intent(Intent.ACTION_VIEW, uriUrl);
startActivity(launchBrowser);
My situation and what I did to fix it:
I have a javascript file included on an HTML page as follows:
Page Name: test.html
<!DOCTYPE html>
<html>
<head>
<script src="scripts/common.js"></script>
<title>Test debugging JS in Chrome</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<div>
<script type="text/javascript">
document.write("something");
</script>
</div>
</body>
</html>
Now entering the Javascript Debugger in Chrome, I click the Scripts Tab, and drop down the list as shown above. I can clearly see scripts/common.js however I could NOT see the current html page test.html in the drop down, therefore I could not debug the embedded javascript:
<script type="text/javascript">
document.write("something");
</script>
That was perplexing. However, when I removed the obsolete type="text/javascript" from the embedded script:
<script>
document.write("something");
</script>
..and refreshed / reloaded the page, voila, it appeared in the drop down list, and all was well again.
I hope this is helpful to anyone who is having issues debugging embedded javascript on an html page.
The reason os.path.join('C:', 'src')
is not working as you expect is because of something in the documentation that you linked to:
Note that on Windows, since there is a current directory for each drive, os.path.join("c:", "foo") represents a path relative to the current directory on drive C: (c:foo), not c:\foo.
As ghostdog said, you probably want mypath=os.path.join('c:\\', 'sourcedir')
Actually, Ruby does have an in-place editing feature. Like Perl, you can say
ruby -pi.bak -e "gsub(/oldtext/, 'newtext')" *.txt
This will apply the code in double-quotes to all files in the current directory whose names end with ".txt". Backup copies of edited files will be created with a ".bak" extension ("foobar.txt.bak" I think).
NOTE: this does not appear to work for multiline searches. For those, you have to do it the other less pretty way, with a wrapper script around the regex.
Using CSS you can set a style for that specific button using the id (#) selector:
#search {
width: 20em; height: 2em;
}
or if you want all submit buttons to be a particular size:
input[type=submit] {
width: 20em; height: 2em;
}
or if you want certain classes of button to be a particular style you can use CSS classes:
<input type="submit" id="search" value="Search" class="search" />
and
input.search {
width: 20em; height: 2em;
}
I use ems as the measurement unit because they tend to scale better.
If we have built in functions to convert your integer values to COLOR then why to worry.
string hexValue = string.Format("{0:X}", intColor);
Color brushes = System.Drawing.ColorTranslator.FromHtml("#"+hexValue);
The equals()
of arrays is inherited from Object
, so it does not look at the contents of the arrrays, it only considers each array equal to itself.
The Arrays.equals()
methods do compare the arrays' contents. There's overloads for all primitive types, and the one for objects uses the objects' own equals()
methods.
Set the user name as data-username
attribute to the button and also a class:
HTML
<input type="button" name="theButton" value="Detail" class="btn" data-username="{{result['username']}}" />
JS
$(document).on('click', '.btn', function() {
var name = $(this).data('username');
if (name != undefined && name != null) {
window.location = '/player_detail?username=' + name;
}
});?
EDIT:
Also, you can simply check for undefined
&& null
using:
$(document).on('click', '.btn', function() {
var name = $(this).data('username');
if (name) {
window.location = '/player_detail?username=' + name;
}
});?
As, mentioned in this answer
if (name) {
}
will evaluate to true if value is not:
The above list represents all possible falsy values in ECMA/Javascript.
You can do it like this.
Models.TestModels obj = new Models.TestModels();
foreach (var item in obj.sp)
{
Console.Write(item.Key);
Console.Write(item.Value.name);
Console.Write(item.Value.age);
}
The problem you most likely have right now is that the collection is private. If you add public to the beginning of this line
Dictionary<int, dynamic> sp = new Dictionary<int, dynamic>
You should be able to access it from the function inside your controller.
Edit: Adding functional example of the full TestModels
implementation.
Your TestModels
class should look something like this.
public class TestModels
{
public Dictionary<int, dynamic> sp = new Dictionary<int, dynamic>();
public TestModels()
{
sp.Add(0, new {name="Test One", age=5});
sp.Add(1, new {name="Test Two", age=7});
}
}
You probably want to read up on the dynamic keyword as well.