I heard of RTM (The RT FAQ Manager). Never used it, however.
Also make sure you're not using other applications that might be using ADB too, like Eclipse for example.
Best practices on internal and external temporary files:
If you'd like to cache some data, rather than store it persistently, you should use
getCacheDir()
to open a File that represents the internal directory where your application should save temporary cache files.When the device is low on internal storage space, Android may delete these cache files to recover space. However, you should not rely on the system to clean up these files for you. You should always maintain the cache files yourself and stay within a reasonable limit of space consumed, such as 1MB. When the user uninstalls your application, these files are removed.
To open a File that represents the external storage directory where you should save cache files, call
getExternalCacheDir()
. If the user uninstalls your application, these files will be automatically deleted.Similar to
ContextCompat.getExternalFilesDirs()
, mentioned above, you can also access a cache directory on a secondary external storage (if available) by callingContextCompat.getExternalCacheDirs()
.Tip: To preserve file space and maintain your app's performance, it's important that you carefully manage your cache files and remove those that aren't needed anymore throughout your app's lifecycle.
If when you set disabled="disabled" immediately after the user clicks the button, and the form doesn't submit because of that, you could try two things:
//First choice [given myForm = your form]:
myInputButton.disabled = "disabled";
myForm.submit()
//Second choice:
setTimeout(disableFunction, 1);
//so the form will submit and then almost instantly, the button will be disabled
Although I honestly bet there will be a better way to do this, than that.
I had the same issue twice, but in the second time I realized it wasn't a problem on Tomcat at all.. Try to delete the cache of your browser, refresh the page and see if the new version of the page on your server is being shown up. It worked with me.
Connect to postgres via existing superuser.
Create a Database by the name of user you are connecting through to postgres.
create database username;
Now try to connect via username
//JUST ADD urlencode();
$url = urlencode("http://maps.googleapis.com/maps/api/geocode/json?address=$adr&sensor=false");
<html>
<head>
<title>Test File</title>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false">
</script>
</head>
<body>
<?php
$adr = 'Sydney+NSW';
echo $adr;
$url = "http://maps.googleapis.com/maps/api/geocode/json?address=$adr&sensor=false";
echo '<p>'.$url.'</p>';
echo file_get_contents($url);
print '<p>'.file_get_contents($url).'</p>';
$jsonData = file_get_contents($url);
echo $jsonData;
?>
</body>
</html>
The ternary operator RETURNS one of two values. Or, it can execute one of two statements based on its condition, but that's generally not a good idea, as it can lead to unintended side-effects.
bar ? () : baz();
In this case, the () does nothing, while baz does something. But you've only made the code less clear. I'd go for more verbose code that's clearer and easier to maintain.
Further, this makes little sense at all:
var foo = bar ? () : baz();
since () has no return type (it's void) and baz has a return type that's unknown at the point of call in this sample. If they don't agree, the compiler will complain, and loudly.
Either write a simple method yourself, or use one of the various utilities out there.
Personally I use apache StringUtils (StringUtils.join)
edit: in Java 8, you don't need this at all anymore:
String joined = String.join(",", name);
There are several methods you could use that exist in the System.IO
namespace:
Directory.GetLogicalDrives() // Returns an array of strings like "c:\"
Path.GetInvalidFileNameChars() // Returns an array of characters that cannot be used in a file name
Path.GetInvalidPathChars() // Returns an array of characters that cannot be used in a path.
As suggested you could then do this:
bool IsValidFilename(string testName) {
string regexString = "[" + Regex.Escape(Path.GetInvalidPathChars()) + "]";
Regex containsABadCharacter = new Regex(regexString);
if (containsABadCharacter.IsMatch(testName)) {
return false;
}
// Check for drive
string pathRoot = Path.GetPathRoot(testName);
if (Directory.GetLogicalDrives().Contains(pathRoot)) {
// etc
}
// other checks for UNC, drive-path format, etc
return true;
}
To fully overload it you also need to implement the __setitem__
and __delitem__
methods.
edit
I almost forgot... if you want to completely emulate a list, you also need __getslice__, __setslice__ and __delslice__
.
There are all documented in http://docs.python.org/reference/datamodel.html
webbot
even works web pages which have dynamically changing id and classnames and has more methods and features than selenium or mechanize.
Here's a snippet :)
from webbot import Browser
web = Browser()
web.go_to('google.com')
web.click('Sign in')
web.type('[email protected]' , into='Email')
web.click('NEXT' , tag='span')
web.type('mypassword' , into='Password' , id='passwordFieldId') # specific selection
web.click('NEXT' , tag='span') # you are logged in ^_^
The docs are also pretty straight forward and simple to use : https://webbot.readthedocs.io
I think $PsHome has the information you're after?
PS .> $PsHome C:\Windows\System32\WindowsPowerShell\v1.0 PS .> Get-Help about_automatic_variables TOPIC about_Automatic_Variables ...
No one has mentioned this yet, and this may not be a common problem, but I had a similar problem with Xcode 5: Make sure you have a default keychain selected in the Mac's Keychain Access. I trying out a fresh install of Mountain Lion and deleted one keychain, which happened to be the default. After setting another keychain as the default (right-click on the keychain and select Make Keychain "Keychain_name" default"), Xcode was able to set up the valid signing identities.
Virtualenv is a tool to create isolated Python environments.
Let's say you're working in 2 different projects, A and B. Project A is a web project and the team is using the following packages:
The project B is also a web project but your team is using:
The machine that you're working doesn't have any version of django, what should you do? Install django 1.4? django 1.6? If you install django 1.4 globally would be easy to point to django 1.6 to work in project A?
Virtualenv is your solution! You can create 2 different virtualenv's, one for project A and another for project B. Now, when you need to work in project A, just activate the virtualenv for project A, and vice-versa.
A better tip when using virtualenv is to install virtualenvwrapper to manage all the virtualenv's that you have, easily. It's a wrapper for creating, working, removing virtualenv's.
The easiest way is to turn the int into a string and take each character of the string as an element of your list:
>>> n = 43365644
>>> digits = [int(x) for x in str(n)]
>>> digits
[4, 3, 3, 6, 5, 6, 4, 4]
>>> lst.extend(digits) # use the extends method if you want to add the list to another
It involves a casting operation, but it's readable and acceptable if you don't need extreme performance.
This works for Windows and Linux! It doesn't matter if it's localhost or online..
function getIP() {
$ip = $_SERVER['SERVER_ADDR'];
if (PHP_OS == 'WINNT'){
$ip = getHostByName(getHostName());
}
if (PHP_OS == 'Linux'){
$command="/sbin/ifconfig";
exec($command, $output);
// var_dump($output);
$pattern = '/inet addr:?([^ ]+)/';
$ip = array();
foreach ($output as $key => $subject) {
$result = preg_match_all($pattern, $subject, $subpattern);
if ($result == 1) {
if ($subpattern[1][0] != "127.0.0.1")
$ip = $subpattern[1][0];
}
//var_dump($subpattern);
}
}
return $ip;
}
select status, count(1) as connectionCount from V$SESSION group by status;
export PATH=/usr/local/bin:$PATH
brew update
brew install vim && brew install macvim
brew link macvim
You now have the latest versions of vim and macvim managed by brew. Run brew update && brew upgrade
every once in a while to upgrade them.
This includes the installation of the CLI mvim
and the mac application (which both point to the same thing).
I use this setup and it works like a charm. Brew even takes care of installing vim with the preferable options.
onCreate is called for the first time when creation of tables are needed. We need to override this method where we write the script for table creation which is executed by SQLiteDatabase. execSQL method. After executing in first time deployment, this method will not be called onwards.
onUpgrade This method is called when database version is upgraded. Suppose for the first time deployment , database version was 1 and in second deployment there was change in database structure like adding extra column in table. Suppose database version is 2 now.
You might be able to resize the image with canvas
and export it using dataURI. Not sure about compression, though.
Take a look at this: Resizing an image in an HTML5 canvas
if you want not the copies; then the best way is to use a pointer vector(or another structure that serves for the same goal). if you want the copies; use directly push_back(). you dont have any other choice.
If you are using a declarative syntax of Jenkinsfile to describe your building pipeline, you can use changeset condition to limit stage execution only to the case when specific files are changed. This is now a standard feature of Jenkins and does not require any additional configruation/software.
stages {
stage('Nginx') {
when { changeset "nginx/*"}
steps {
sh "make build-nginx"
sh "make start-nginx"
}
}
}
You can combine multiple conditions using anyOf
or allOf
keywords for OR or AND behaviour accordingly:
when {
anyOf {
changeset "nginx/**"
changeset "fluent-bit/**"
}
}
steps {
sh "make build-nginx"
sh "make start-nginx"
}
In my case, I had to add _id: Object
into my Schema, and then everything worked fine.
With the Python library pandas
, you can easily create column names and infer data types from a csv file.
from sqlalchemy import create_engine
import pandas as pd
engine = create_engine('postgresql://user:pass@localhost/db_name')
df = pd.read_csv('/path/to/csv_file')
df.to_sql('pandas_db', engine)
The if_exists
parameter can be set to replace or append to an existing table, e.g. df.to_sql('pandas_db', engine, if_exists='replace')
. This works for additional input file types as well, docs here and here.
This is something like the regular expression you need:
([^-]*)-
Quick tests in JavaScript:
/([^-]*)-/.exec('text-1')[1] // 'text'
/([^-]*)-/.exec('foo-bar-1')[1] // 'foo'
/([^-]*)-/.exec('-1')[1] // ''
/([^-]*)-/.exec('quux')[1] // explodes
Example. To find number of vowels within the string
var word='Web Development Tutorial';
var vowels='[aeiou]';
var re = new RegExp(vowels, 'gi');
var arr = word.match(re);
document.write(arr.length);
This will be helpful for the right bottom rounded button
HTML :
<a class="fixedButton" href>
<div class="roundedFixedBtn"><i class="fa fa-phone"></i></div>
</a>
CSS:
.fixedButton{
position: fixed;
bottom: 0px;
right: 0px;
padding: 20px;
}
.roundedFixedBtn{
height: 60px;
line-height: 80px;
width: 60px;
font-size: 2em;
font-weight: bold;
border-radius: 50%;
background-color: #4CAF50;
color: white;
text-align: center;
cursor: pointer;
}
Here is jsfiddle link http://jsfiddle.net/vpthcsx8/11/
Checking Count() before the WHERE clause solved my problem. It is cheaper than ToList()
if (authUserList != null && _list.Count() > 0)
_list = _list.Where(l => authUserList.Contains(l.CreateUserId));
"Map<String , String > map = new HapshMap<String , String>;
map.add("one","java");
map.add("two" ,"spring");
Set<Entry<String,String>> set = map.entrySet();
List<Entry<String , String>> list = new ArrayList<Entry<String , String>> (set);
for(Entry<String , String> entry : list ) {
System.out.println(entry.getKey());
System.out.println(entry.getValue());
} "
You can also use the shorter format
From the man page:
%F full date; same as %Y-%m-%d
Example:
#!/bin/bash
date_today=$(date +%F)
date_dir=$(date +%F -d yesterday)
I just recently had the same problem. I have made this work around, hope it will help someone.
HTML + tailwind
<div class="dashed-border h-14 w-full relative rounded-lg">
<div class="w-full h-full rounded-lg bg-page z-10 relative">
Content goes here...
<div>
</div>
CSS
.dashed-border::before {
content: '';
position: absolute;
top: 50%;
left: 0;
width: 100%;
height: calc(100% + 4px);
transform: translateY(-50%);
background-image: linear-gradient(to right, #333 50%, transparent 50%);
background-size: 16px;
z-index: 0;
border-radius: 0.5rem;
}
.dashed-border::after {
content: '';
position: absolute;
left: 50%;
top: 0;
height: 100%;
width: calc(100% + 4px);
transform: translateX(-50%);
background-image: linear-gradient(to bottom, #333 50%, transparent 50%);
background-size: 4px 16px;
z-index: 1;
border-radius: 0.5rem;
}
An update in case what you really need can be covered by having the file included in a checkout of another folder.
Since SVN 1.6 you can make file externals, a kind of svn links. It means that you can have another versioned folder that includes a single file. Committing changes to the file in a checkout of this folder is also possible.
It's very simple, checkout the folder you want to include the file, and simply add a property to the folder
svn propedit svn:externals .
with content like this:
file.txt /repos/path/to/file.txt
After you commit this, the file will appear in future checkouts of the folder. Basically it works, but there are some limitations as described in the documentation linked above.
These messages are rather misleading and understandably a source of confusion. Older Ubuntu versions used Libav which is a fork of the FFmpeg project. FFmpeg returned in Ubuntu 15.04 "Vivid Vervet".
The fork was basically a non-amicable result of conflicting personalities and development styles within the FFmpeg community. It is worth noting that the maintainer for Debian/Ubuntu switched from FFmpeg to Libav on his own accord due to being involved with the Libav fork.
ffmpeg
vs the fake oneFor a while both Libav and FFmpeg separately developed their own version of ffmpeg
.
Libav then renamed their bizarro ffmpeg
to avconv
to distance themselves from the FFmpeg project. During the transition period the "not developed anymore" message was displayed to tell users to start using avconv
instead of their counterfeit version of ffmpeg
. This confused users into thinking that FFmpeg (the project) is dead, which is not true. A bad choice of words, but I can't imagine Libav not expecting such a response by general users.
This message was removed upstream when the fake "ffmpeg
" was finally removed from the Libav source, but, depending on your version, it can still show up in Ubuntu because the Libav source Ubuntu uses is from the ffmpeg-to-avconv transition period.
In June 2012, the message was re-worded for the package libav - 4:0.8.3-0ubuntu0.12.04.1
. Unfortunately the new "deprecated" message has caused additional user confusion.
Starting with Ubuntu 15.04 "Vivid Vervet", FFmpeg's ffmpeg
is back in the repositories again.
To further complicate matters, Libav chose a name that was historically used by FFmpeg to refer to its libraries (libavcodec, libavformat, etc). For example the libav-user mailing list, for questions and discussions about using the FFmpeg libraries, is unrelated to the Libav project.
If you are using avconv
then you are using Libav. If you are using ffmpeg
you could be using FFmpeg or Libav. Refer to the first line in the console output to tell the difference: the copyright notice will either mention FFmpeg or Libav.
Secondly, the version numbering schemes differ. Each of the FFmpeg or Libav libraries contains a version.h
header which shows a version number. FFmpeg will end in three digits, such as 57.67.100, and Libav will end in one digit such as 57.67.0. You can also view the library version numbers by running ffmpeg
or avconv
and viewing the console output.
ffmpeg
The real ffmpeg
is in the repository, so you can install it with:
apt-get install ffmpeg
Your options are:
ffmpeg
,ffmpeg
,These methods are non-intrusive, reversible, and will not interfere with the system or any repository packages.
Another possible option is to upgrade to Ubuntu 15.04 "Vivid Vervet" or newer and just use ffmpeg
from the repository.
For an interesting blog article on the situation, as well as a discussion about the main technical differences between the projects, see The FFmpeg/Libav situation.
The reason that the error is occuring is because all the files are not being recognized as being in the same project directory. The easiest way to fix this is to simply create a new project.
File -> Project -> Console application -> Next -> select C or C++ -> Name the project and select the folder to create the project in -> then click finish.
Then to create the class and header files by clicking New -> Class. Give the class a name and uncheck "Use relative path." Make sure you are creating the class and header file in the same project folder.
After these steps, the left side of the IDE will display the Sources and Headers folders, with main.cpp, theclassname.cpp, and theclassname.h all conviently arranged.
Use a Comparator
like this:
List<Fruit> fruits= new ArrayList<Fruit>();
Fruit fruit;
for(int i = 0; i < 100; i++)
{
fruit = new Fruit();
fruit.setname(...);
fruits.add(fruit);
}
// Sorting
Collections.sort(fruits, new Comparator<Fruit>() {
@Override
public int compare(Fruit fruit2, Fruit fruit1)
{
return fruit1.fruitName.compareTo(fruit2.fruitName);
}
});
Now your fruits list is sorted based on fruitName
.
I want to compare UTC timestamps from a log file with local timestamps
If this is your intent, then I wouldn't worry about specifying specific tzinfo parameters or any additional external libraries. Since Python 3.5, the built in datetime module is all you need to create a UTC and a local timestamp automatically.
import datetime
f = "%a %b %d %H:%M:%S %Z %Y" # Full format with timezone
# tzinfo=None
cdatetime = datetime.datetime(2010, 4, 27, 12, 0, 0, 0) # 1. Your example from log
cdatetime = datetime.datetime.now() # 2. Basic date creation (default: local time)
print(cdatetime.strftime(f)) # no timezone printed
# Tue Apr 27 12:00:00 2010
utctimestamp = cdatetime.astimezone(tz=datetime.timezone.utc) # 1. convert to UTC
utctimestamp = datetime.datetime.now(tz=datetime.timezone.utc) # 2. create in UTC
print(utctimestamp.strftime(f))
# Tue Apr 27 17:00:00 UTC 2010
localtimestamp = cdatetime.astimezone() # 1. convert to local [default]
localtimestamp = datetime.datetime.now().astimezone() # 2. create with local timezone
print(localtimestamp.strftime(f))
# Tue Apr 27 12:00:00 CDT 2010
The '%Z' parameter of datetime.strftime() prints the timezone acronym into the timestamp for humans to read.
The outcome sql will be different but the result should be the same:
var shifts = Shifts.Where(s => !EmployeeShifts.Where(es => es.ShiftID == s.ShiftID).Any());
You could use flatMap. It can filter and map in one.
$scope.appIds = $scope.applicationsHere.flatMap(obj => obj.selected ? obj.id : [])
Interactive rebase with --autosquash
is something I frequently use when I need to fixup previous commits deeper in the history. It essentially speeds up the process that ZelluX's answer illustrates, and is especially handy when you have more than one commit you need to edit.
From the documentation:
--autosquash
When the commit log message begins with "squash! …?" (or "fixup! …?"), and there is a commit whose title begins with the same …?, automatically modify the todo list of rebase -i so that the commit marked for squashing comes right after the commit to be modified
Assume you have a history that looks like this:
$ git log --graph --oneline
* b42d293 Commit3
* e8adec4 Commit2
* faaf19f Commit1
and you have changes that you want to amend to Commit2 then commit your changes using
$ git commit -m "fixup! Commit2"
alternatively you can use the commit-sha instead of the commit message, so "fixup! e8adec4
or even just a prefix of the commit message.
Then initiate an interactive rebase on the commit before
$ git rebase e8adec4^ -i --autosquash
your editor will open with the commits already correctly ordered
pick e8adec4 Commit2
fixup 54e1a99 fixup! Commit2
pick b42d293 Commit3
all you need to do is save and exit
After clicking on Properties of any installer(.exe) which block your application to install (Windows Defender SmartScreen prevented an unrecognized app ) for that issue i found one solution
- Right click on installer(.exe)
- Select properties option.
- Click on checkbox to check Unblock at the bottom of Properties.
This solution work for Heroku CLI (heroku-x64) installer(.exe)
I think if you want to use extension methods you need to use the GroupJoin
var query =
people.GroupJoin(pets,
person => person,
pet => pet.Owner,
(person, petCollection) =>
new { OwnerName = person.Name,
Pet = PetCollection.Select( p => p.Name )
.DefaultIfEmpty() }
).ToList();
You may have to play around with the selection expression. I'm not sure it would give you want you want in the case where you have a 1-to-many relationship.
I think it's a little easier with the LINQ Query syntax
var query = (from person in context.People
join pet in context.Pets on person equals pet.Owner
into tempPets
from pets in tempPets.DefaultIfEmpty()
select new { OwnerName = person.Name, Pet = pets.Name })
.ToList();
window.addEventListener("scroll",function(){
window.lastScrollTime = new Date().getTime()
});
function is_scrolling() {
return window.lastScrollTime && new Date().getTime() < window.lastScrollTime + 500
}
Change the 500 to the number of milliseconds after the last scroll event at which you consider the user to be "no longer scrolling".
(addEventListener
is better than onScroll
because the former can coexist nicely with any other code that uses onScroll
.)
I got this error and i fixed the issue with iconv
function like following:
iconv('latin5', 'utf-8', $data['index']);
I used a pop over inside a list, Im giving an example via HTML
<a type="button" data-container="body" data-toggle="popover" data-html="true" data-placement="right" data-content='<ul class="nav"><li><a href="#">hola</li><li><a href="#">hola2</li></ul>'>
For some applications you can use Fraction
instead of floating-point numbers.
>>> from fractions import Fraction
>>> Fraction(1, 3**54)
Fraction(1, 58149737003040059690390169)
(For other applications, there's decimal
, as suggested out by the other responses.)
You just need to add disabled
as option
attribute
<option disabled>select one option</option>
Project Properties -> Compiler Tab -> Advanced Compile Options button
Project Properties -> Application Tab
For global functions you can use this one instead of eval
suggested in one of the answers.
var global = (function (){
return this;
})();
if (typeof(global.f) != "function")
global.f = function f1_shim (){
// commonly used by polyfill libs
};
You can use global.f instanceof Function
as well, but afaik. the value of the Function
will be different in different frames, so it will work only with a single frame application properly. That's why we usually use typeof
instead. Note that in some environments there can be anomalies with typeof f
too, e.g. by MSIE 6-8 some of the functions for example alert
had "object" type.
By local functions you can use the one in the accepted answer. You can test whether the function is local or global too.
if (typeof(f) == "function")
if (global.f === f)
console.log("f is a global function");
else
console.log("f is a local function");
To answer the question, the example code is working for me without error in latest browers, so I am not sure what was the problem with it:
function something_cool(text, callback) {
alert(text);
if( callback != null ) callback();
}
Note: I would use callback !== undefined
instead of callback != null
, but they do almost the same.
I didn't see this "complete" answer anywhere; I just saw the one about changing port numbers after I posted this, so meh.
Make sure that in your project properties in visual studio that project url is not assigned to the same url or port that is being used in IIS for any site bindings.
I'm looking up the "why" for this, but my assumption off the top of my head is that both IIS and Visual Studio's IIS express use the same directory when creating virtual directories and Visual Studio can only create new virtual directories and cannot modify any that IIS has created when it applies it's bindings to the site.
feel free to correct me on the why.
#Edit (add explanation :) )
say you have an array you want to update your existing firestore document field with. You can use set(yourData, {merge: true} )
passing setOptions(second param in set function) with {merge: true}
is must in order to merge the changes instead of overwriting. here is what the official documentation says about it
An options object that configures the behavior of set() calls in DocumentReference, WriteBatch, and Transaction. These calls can be configured to perform granular merges instead of overwriting the target documents in their entirety by providing a SetOptions with merge: true.
you can use this
const yourNewArray = [{who: "[email protected]", when:timestamp}
{who: "[email protected]", when:timestamp}]
collectionRef.doc(docId).set(
{
proprietary: "jhon",
sharedWith: firebase.firestore.FieldValue.arrayUnion(...yourNewArray),
},
{ merge: true },
);
hope this helps :)
A convinient way is using the package python-dotenv
:
It reads out a .flaskenv
file where you can store environment variables for flask.
pip install python-dotenv
.flaskenv
in the root directory of your appInside the file you specify:
FLASK_APP=application.py
FLASK_RUN_HOST=localhost
FLASK_RUN_PORT=80
After that you just have to run your app with flask run
and can access your app at that port.
Please note that FLASK_RUN_HOST
defaults to 127.0.0.1
and FLASK_RUN_PORT
defaults to 5000
.
A slight improvement of the above accepted answer, that I think is more pythonic (asking for forgiveness is better than asking for permission)
column_widths = []
for row in workSheet.iter_rows():
for i, cell in enumerate(row):
try:
column_widths[i] = max(column_widths[i], len(str(cell.value)))
except IndexError:
column_widths.append(len(str(cell.value)))
for i, column_width in enumerate(column_widths):
workSheet.column_dimensions[get_column_letter(i + 1)].width = column_width
The problem was, in the URL i wrote http://my_domain instead of https://my_domain
How can we read data from a text file and store in a String Variable?
Err, read data from the file and store it in a String variable. It's just code. Not a real question so far.
Is it possible to pass the filename in a method and it would return the String which is the text from the file.
Yes it's possible. It's also a very bad idea. You should deal with the file a part at a time, for example a line at a time. Reading the entire file into memory before you process any of it adds latency; wastes memory; and assumes that the entire file will fit into memory. One day it won't. You don't want to do it this way.
You can also use SUM + IF
which is shorter than SUM + CASE
:
SELECT
count(id)
, SUM(IF(kind=1, 1, 0)) AS countKindOne
, SUM(CASE WHEN kind=2 THEN 1 ELSE 0 END) AS countKindTwo
Boost contains cstdint.hpp header file with the types you are looking for: http://www.boost.org/doc/libs/1_36_0/boost/cstdint.hpp
Injection already existed in Java EE 5 with the @Resource, @PersistentUnit or @EJB annotations, for example. But it was limited to certain resources (datasource, EJB . . .) and into certain components (Servlets, EJBs, JSF backing bean . . .). With CDI you can inject nearly anything anywhere thanks to the @Inject annotation.
When you want to trigger javascript code from an anchor tag, the onclick handler should be used rather than the javascript: pseudo-protocol. The javascript code that runs within the onclick handler must return true or false (or an expression than evalues to true or false) back to the tag itself - if it returns true, then the HREF of the anchor will be followed like a normal link. If it returns false, then the HREF will be ignored. This is why "return false;" is often included at the end of the code within an onclick handler.
Had similar problems recently. Would suggest you carefully check if the user you're connecting with has proper authorizations on the remote machine.
You can review permissions using the following command.
Set-PSSessionConfiguration -ShowSecurityDescriptorUI -Name Microsoft.PowerShell
Found this tip here (updated link, thanks "unbob"):
https://devblogs.microsoft.com/scripting/configure-remote-security-settings-for-windows-powershell/
It fixed it for me.
vector<int> adj[n];
// where n is number of rows in 2d vector.
You say:
The file doesn't seem to be corrupted or of a different format.
However as the error message says, the first 8 bytes of the file are '<table r'
... that is definitely not Excel .xls
format. Open it with a text editor (e.g. Notepad) that won't take any notice of the (incorrect) .xls
extension and see for yourself.
Here, for OS X completeness: if you install PostgreSQL from MacPorts, pg_config will be in /opt/local/lib/postgresql94/bin/pg_config
.
When you installed MacPorts, it already added /opt/local/bin
to your PATH.
So, this will fix the problem:
$ sudo ln -s /opt/local/lib/postgresql94/bin/pg_config /opt/local/bin/pg_config
Now pip install psycopg2
will be able to run pg_config
without issues.
Since you are using .Result
or .Wait
or await
this will end up causing a deadlock in your code.
you can use ConfigureAwait(false)
in async
methods for preventing deadlock
like this:
var result = await httpClient.GetAsync("http://stackoverflow.com", HttpCompletionOption.ResponseHeadersRead)
.ConfigureAwait(false);
you can use
ConfigureAwait(false)
wherever possible for Don't Block Async Code .
The first line defines the variable. The second line loops it to 100, the third adds 1 to a and the 4th divides a by 3 and if there is no remainder (0) it will print that number otherwise it will print a blank line.
a = (0)
for i in range(0,100):
a = a + 1
if a % 3 == 0:
print(a)
else:
print("")
If you use the oh-my-zsh, in the ~/.oh-my-zsh/lib/misc.zsh
file, comment this line:
env_default 'LESS' '-R'
As far as I know, strong
and retain
are synonyms, so they do exactly the same.
Then the weak
is almost like assign
, but automatically set to nil after the object, it is pointing to, is deallocated.
That means, you can simply replace them.
However, there is one special case I've encountered, where I had to use assign
, rather than weak
. Let's say we have two properties delegateAssign
and delegateWeak
. In both is stored our delegate, that is owning us by having the only strong reference. The delegate is deallocating, so our -dealloc
method is called too.
// Our delegate is deallocating and there is no other strong ref.
- (void)dealloc {
[delegateWeak doSomething];
[delegateAssign doSomething];
}
The delegate is already in deallocation process, but still not fully deallocated. The problem is that weak
references to him are already nullified! Property delegateWeak
contains nil, but delegateAssign
contains valid object (with all properties already released and nullified, but still valid).
// Our delegate is deallocating and there is no other strong ref.
- (void)dealloc {
[delegateWeak doSomething]; // Does nothing, already nil.
[delegateAssign doSomething]; // Successful call.
}
It is quite special case, but it reveal us how those weak
variables work and when they are nullified.
If you are using Swift 2, here is an example my colleague came up with, which adds isNilOrEmpty property on optional Strings:
protocol OptionalString {}
extension String: OptionalString {}
extension Optional where Wrapped: OptionalString {
var isNilOrEmpty: Bool {
return ((self as? String) ?? "").isEmpty
}
}
You can then use isNilOrEmpty on the optional string itself
func testNilOrEmpty() {
let nilString:String? = nil
XCTAssertTrue(nilString.isNilOrEmpty)
let emptyString:String? = ""
XCTAssertTrue(emptyString.isNilOrEmpty)
let someText:String? = "lorem"
XCTAssertFalse(someText.isNilOrEmpty)
}
$("#SelectedCountryId_option_selected")[0].textContent
this worked for me, here instead of [0]
, pass the selected index of your drop down list.
Use the ToString() method - standard and custom numeric format strings. Have a look at the MSDN article How to: Pad a Number with Leading Zeros.
string text = no.ToString("0000");
I recommend checking out Microsoft's SQL Server sample databases: https://github.com/Microsoft/sql-server-samples/releases/tag/adventureworks
The AdventureWorks sample uses a very clear and consistent naming convention that uses schema names for the organization of database objects.
Since Python 2.1 you can import isfunction
from the inspect
module.
>>> from inspect import isfunction
>>> def f(): pass
>>> isfunction(f)
True
>>> isfunction(lambda x: x)
True
The best way is using the transparent color code
android:background="#00000000"
use the color code #00000000 for making any thing transparent
It sounds like you need to some background reading on what an FFT is (e.g. http://en.wikipedia.org/wiki/FFT). But to answer your questions:
Why does the x-axis (frequency) end at 500?
Because the input vector is length 1000. In general, the FFT of a length-N
input waveform will result in a length-N
output vector. If the input waveform is real, then the output will be symmetrical, so the first 501 points are sufficient.
Edit: (I didn't notice that the example padded the time-domain vector.)
The frequency goes to 500 Hz because the time-domain waveform is declared to have a sample-rate of 1 kHz. The Nyquist sampling theorem dictates that a signal with sample-rate fs
can support a (real) signal with a maximum bandwidth of fs/2
.
How do I know the frequencies are between 0 and 500?
See above.
Shouldn't the FFT tell me, in which limits the frequencies are?
No.
Does the FFT only return the amplitude value without the frequency?
The FFT simply assigns an amplitude (and phase) to every frequency bin.
I know that the response is late, but the best way to execute sqlite queries in android is through a custom content provider. In that way the UI is decoupled with the database class(the class that extends the SQLiteOpenHelper class). Also the queries are executed in a background thread(Cursor Loader).
Here's a way to find all the views in every database on your instance:
SELECT TABLE_SCHEMA, TABLE_NAME
FROM information_schema.tables
WHERE TABLE_TYPE LIKE 'VIEW';
As stated multiple times, inversion is achieved by the -v
option to grep
. Let me add the (hopefully amusing) note that you could have figured this out yourself by grepping through the grep
help text:
grep --help | grep invert
-v, --invert-match select non-matching lines
In Powershell 3.0 and above there is both a Invoke-WebRequest and Invoke-RestMethod. Curl is actually an alias of Invoke-WebRequest in PoSH. I think using native Powershell would be much more appropriate than curl, but it's up to you :).
Invoke-WebRequest MSDN docs are here: https://technet.microsoft.com/en-us/library/hh849901.aspx?f=255&MSPPError=-2147217396
Invoke-RestMethod MSDN docs are here: https://technet.microsoft.com/en-us/library/hh849971.aspx?f=255&MSPPError=-2147217396
A submodule is its own repo/work-area, with its own .git
directory.
So, first commit/push
your submodule's changes:
$ cd path/to/submodule
$ git add <stuff>
$ git commit -m "comment"
$ git push
Then, update your main project to track the updated version of the submodule:
$ cd /main/project
$ git add path/to/submodule
$ git commit -m "updated my submodule"
$ git push
Starting with Firefox 65 an about:config
flag exists now so console API calls like console.log()
land in the output stream and thus the log file (see (https://github.com/mozilla/geckodriver/issues/284#issuecomment-458305621).
profile = new FirefoxProfile();
profile.setPreference("devtools.console.stdout.content", true);
In addition, if you want to see Sources and Console on one window, go to:
"Customize and control DevTools -> "Show console drawer"
You can also see it here at the right corner:
What this means is that your web page is referring to content which is in the folder one level up from your page, but your page is already in the website's root folder, so the relative path is invalid. Judging by your exception message it looks like an image control is causing the problem.
You must have something like:
<asp:Image ImageUrl="..\foo.jpg" />
But since the page itself is in the root folder of the website, it cannot refer to content one level up, which is what the leading ..\
is doing.
You need to set a height on the DIV. Otherwise it will keep expanding indefinitely.
You don't.
If you want to extend Person with Student, just do:
public class Student extends Person
{
}
And make sure, when you compile both classes, one can find the other one.
What IDE are you using?
Assume your code is looking for the file say app.properties. Copy this file to any dir and add this dir to classpath, by creating a setenv.sh in the bin dir of tomcat.
In your setenv.sh of tomcat( if this file is not existing, create one , tomcat will load this setenv.sh file.
#!/bin/sh
CLASSPATH="$CLASSPATH:/home/user/config_my_prod/"
You should not have your properties files in ./webapps//WEB-INF/classes/app.properties
Tomcat class loader will override the with the one from WEB-INF/classes/
A good read: https://tomcat.apache.org/tomcat-8.0-doc/class-loader-howto.html
You can use fs.promises
available natively since Node v11.0.0
import fs from 'fs';
const readFile = async filePath => {
try {
const data = await fs.promises.readFile(filePath, 'utf8')
return data
}
catch(err) {
console.log(err)
}
}
The previous version, xlrd 1.2.0, may appear to work, but it could also expose you to potential security vulnerabilities. With that warning out of the way, if you still want to give it a go, type the following command:
pip install xlrd==1.2.0
You can not add links from CSS, you will have to do so from the HTML code explicitly. For example, something like this:
<a href="whatever.html"><li id="header"></li></a>
In Simple,e.printStackTrace() is not good practice,because it just prints out the stack trace to standard error. Because of this you can't really control where this output goes.
It is not possible to change the Array Size. But you can copy the element of one array into another array by creating an Array of bigger size.
It is recommended to create Array of double size if Array is full and Reduce Array to halve if Array is one-half full
public class ResizingArrayStack1 {
private String[] s;
private int size = 0;
private int index = 0;
public void ResizingArrayStack1(int size) {
this.size = size;
s = new String[size];
}
public void push(String element) {
if (index == s.length) {
resize(2 * s.length);
}
s[index] = element;
index++;
}
private void resize(int capacity) {
String[] copy = new String[capacity];
for (int i = 0; i < s.length; i++) {
copy[i] = s[i];
s = copy;
}
}
public static void main(String[] args) {
ResizingArrayStack1 rs = new ResizingArrayStack1();
rs.push("a");
rs.push("b");
rs.push("c");
rs.push("d");
}
}
For Java 11 you can use new HTTP client:
HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create("http://localhost/api"))
.header("Content-Type", "application/json")
.POST(ofInputStream(() -> getClass().getResourceAsStream(
"/some-data.json")))
.build();
client.sendAsync(request, BodyHandlers.ofString())
.thenApply(HttpResponse::body)
.thenAccept(System.out::println)
.join();
You can use publisher from InputStream, String, File. Converting JSON to the String or IS you can with Jackson.
Using @Mark-Rushakoff answer, I worked out a simpler approach, no need to call the sys library. It works with Python 3. Tested in Windows:
from time import sleep
for i in range(21):
# the exact output you're looking for:
print ("\r[%-20s] %d%%" % ('='*i, 5*i), end='')
sleep(0.25)
You could create a function who consumes an list of int, transforms in string to concatenate and cast do int again, something like this:
import random
def generate_random_number(length):
return int(''.join([str(random.randint(0,10)) for _ in range(length)]))
This can be a challenging error. Here are some notes taken from https://connect.microsoft.com/SQLServer/feedback/details/339410/ look for AmirCharania's comment.
I've adjusted the answer given by AmirCharania for data selected into an actual table, instead of a temp one. First select your dataset into a development table then run the following:
WITH CTE_Dev
AS (
SELECT C.column_id
,ColumnName = C.NAME
,C.max_length
,C.user_type_id
,C.precision
,C.scale
,DataTypeName = T.NAME
FROM sys.columns C
INNER JOIN sys.types T ON T.user_type_id = C.user_type_id
WHERE OBJECT_ID = OBJECT_ID('YOUR TARGET TABLE NAME HERE, WITH SCHEMA')
)
,CTE_Temp
AS (
SELECT C.column_id
,ColumnName = C.NAME
,C.max_length
,C.user_type_id
,C.precision
,C.scale
,DataTypeName = T.NAME
FROM sys.columns C
INNER JOIN sys.types T ON T.user_type_id = C.user_type_id
WHERE OBJECT_ID = OBJECT_ID('YOUR TEMP TABLE NAME HERE, WITH SCHEMA')
)
SELECT *
FROM CTE_Dev D
FULL OUTER JOIN CTE_Temp T ON D.ColumnName = T.ColumnName
WHERE ISNULL(D.max_length, 0) < ISNULL(T.max_length, 999)
im
is "image process name"
example /f /im notepad.exe
is specified to kill image process name (program) notepad.exe
If you are doing form validation such as
type="submit" onsubmit="return validateForm(this)"
validateForm = function(form) {
if ($('input#company').val() === "" || $('input#company').val() === "Company") {
$('input#company').val("Company").css('color','red'); finalReturn = false;
$('input#company').on('mouseover',(function() {
$('input#company').val("").css('color','black');
$('input#company').off('mouseover');
finalReturn = true;
}));
}
return finalReturn;
}
Double check you are returning true. This seems simple but I had
var finalReturn = false;
When the form was correct it was not being corrected by validateForm and so not being submitted as finalReturn was still initialized to false instead of true. By the way, above code works nicely with address, city, state and so on.
Using pure Javascript your can prototype your own YYYYMMDD format;
Date.prototype.yyyymmdd = function() {
var yyyy = this.getFullYear().toString();
var mm = (this.getMonth()+1).toString(); // getMonth() is zero-based
var dd = this.getDate().toString();
return yyyy + "/" + (mm[1]?mm:"0"+mm[0]) + "/" + (dd[1]?dd:"0"+dd[0]); // padding
};
var date = new Date();
console.log( date.yyyymmdd() ); // Assuming you have an open console
If sometimes a link! will not work. so create a temporary object and take all values from the writable object then change the value and assign it to the writable object. it should perfectly.
var globalObject = {
name:"a",
age:20
}
function() {
let localObject = {
name:'a',
age:21
}
this.globalObject = localObject;
}
If you want to apply the WHERE clause to the result of the UNION, then you have to embed the UNION in the FROM clause:
SELECT *
FROM (SELECT * FROM TableA
UNION
SELECT * FROM TableB
) AS U
WHERE U.Col1 = ...
I'm assuming TableA and TableB are union-compatible. You could also apply a WHERE clause to each of the individual SELECT statements in the UNION, of course.
This may help you.
?php
$sql = "select * from mine where username = '$user' ";
$res = mysql_query($sql);
while($list = mysql_fetch_assoc($res))
{
$category = $list['category'];
$username = $list['username'];
$options = $list['options'];
?>
<input type="text" name="category" value="<?php echo '$category' ?>" readonly="readonly" />
<select name="course">
<option value="0">Please Select Option</option>
// Assuming $list['options'] is a coma seperated options string
$arr=explode(",",$list['options']);
<?php foreach ($arr as $value) { ?>
<option value="<?php echo $value; ?>"><?php echo $value; ?></option>
<?php } >
</select>
<?php
}
?>
Now I need to connect that application from my local computer, but I don't know the JMX port number of the remote computer. Where can I find it? Or, must I restart that application with some VM parameters to specify the port number?
By default JMX does not publish on a port unless you specify the arguments from this page: How to activate JMX...
-Dcom.sun.management.jmxremote # no longer required for JDK6
-Dcom.sun.management.jmxremote.port=9010
-Dcom.sun.management.jmxremote.local.only=false # careful with security implications
-Dcom.sun.management.jmxremote.authenticate=false # careful with security implications
If you are running you should be able to access any of those system properties to see if they have been set:
if (System.getProperty("com.sun.management.jmxremote") == null) {
System.out.println("JMX remote is disabled");
} else [
String portString = System.getProperty("com.sun.management.jmxremote.port");
if (portString != null) {
System.out.println("JMX running on port "
+ Integer.parseInt(portString));
}
}
Depending on how the server is connected, you might also have to specify the following parameter. As part of the initial JMX connection, jconsole connects up to the RMI port to determine which port the JMX server is running on. When you initially start up a JMX enabled application, it looks its own hostname to determine what address to return in that initial RMI transaction. If your hostname is not in /etc/hosts
or if it is set to an incorrect interface address then you can override it with the following:
-Djava.rmi.server.hostname=<IP address>
As an aside, my SimpleJMX package allows you to define both the JMX server and the RMI port or set them both to the same port. The above port defined with com.sun.management.jmxremote.port
is actually the RMI port. This tells the client what port the JMX server is running on.
I made a simple function, maybe someone can use it
function secsToTime(secs){
function format(number){
if(number===0){
return '00';
}else {
if (number < 10) {
return '0' + number
} else{
return ''+number;
}
}
}
var minutes = Math.floor(secs/60)%60;
var hours = Math.floor(secs/(60*60))%24;
var days = Math.floor(secs/(60*60*24));
var seconds = Math.floor(secs)%60;
return (days>0? days+"d " : "")+format(hours)+':'+format(minutes)+':'+format(seconds);
}
this can generate the followings outputs:
The issue is fixed by adding repository url under distributionManagement tab in main pom.xml.
Jenkin maven goal : clean deploy -U -Dmaven.test.skip=true
<distributionManagement>
<repository>
<id>releases</id>
<url>http://domain:port/content/repositories/releases</url>
</repository>
<snapshotRepository>
<id>snapshots</id>
<url>http://domain:port/content/repositories/snapshots</url>
</snapshotRepository>
</distributionManagement>
Obsolete: This answer is correct only for an older version of Notepad++. Converting between tabs/spaces is now built into Notepad++ and the TextFX plugin is no longer available in the Plugin Manager dialog.
Preferences -> Language Menu/Tab Settings
.TextFX -> TextFX Edit -> Leading spaces to tabs or tabs to spaces
.Note: Make sure TextFX Characters plugin is installed (Plugins -> Plugin manager -> Show plugin manager
, Installed
tab). Otherwise, there will be no TextFX menu.
I don't think there are any machine code decompilers that produce Pascal code. Most "Delphi decompilers" parse form and RTTI data, but do not actually decompile the machine code. I can only recommend using something like DeDe (or similar software) to extract symbol information in combination with a C decompiler, then translate the decompiled C code to Delphi (there are many source code converters out there).
My solution is similar.
// In destination class:
var AddressString:String = String()
// In segue:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if (segue.identifier == "seguetobiddetailpagefromleadbidder")
{
let secondViewController = segue.destinationViewController as! BidDetailPage
secondViewController.AddressString = pr.address as String
}
}
its super easy.
You'll need each machine to have it's own copy of ElasticSearch (simply copy the one you have now) -- the reason is that each machine / node whatever is going to keep it's own files that are sharded accross the cluster.
The only thing you really need to do is edit the config file to include the name of the cluster.
If all machines have the same cluster name elasticsearch will do the rest automatically (as long as the machines are all on the same network)
Read here to get you started: https://www.elastic.co/guide/en/elasticsearch/guide/current/deploy.html
When you create indexes (where the data goes) you define at that time how many replicas you want (they'll be distributed around the cluster)
UPDATE mytable SET title=TRIM(REPLACE(REPLACE(title, "\n", ""), "\t", ""));
My problem was unrelated to processData
. It was because I sent a function that cannot be called later with apply
because it did not have enough arguments. Specifically I shouldn't have used alert
as the error
callback.
$.ajax({
url: csvApi,
success: parseCsvs,
dataType: "json",
timeout: 5000,
processData: false,
error: alert
});
See this answer for more information on why that can be a problem: Why are certain function calls termed "illegal invocations" in JavaScript?
The way I was able to discover this was by adding a console.log(list[ firingIndex ])
to jQuery so I could track what it was firing.
This was the fix:
function myError(jqx, textStatus, errStr) {
alert(errStr);
}
$.ajax({
url: csvApi,
success: parseCsvs,
dataType: "json",
timeout: 5000,
error: myError // Note that passing `alert` instead can cause a "jquery.js:3189 Uncaught TypeError: Illegal invocation" sometimes
});
the other way , here I have used ArrayList and Map, so its not call json object row by row but after iteration of resultset finished :
List<Map<String, String>> list = new ArrayList<Map<String, String>>();
ResultSetMetaData rsMetaData = rs.getMetaData();
while(rs.next()){
Map map = new HashMap();
for (int i = 1; i <= rsMetaData.getColumnCount(); i++) {
String key = rsMetaData.getColumnName(i);
String value = null;
if (rsmd.getColumnType(i) == java.sql.Types.VARCHAR) {
value = rs.getString(key);
} else if(rsmd.getColumnType(i)==java.sql.Types.BIGINT)
value = rs.getLong(key);
}
map.put(key, value);
}
list.add(map);
}
json.put(list);
public async Task<model> GetSomething(int id)
{
return await context.model.FindAsync(id);
}
Change your signatures to private static bool siprimo(long a) and private static long volteado(long a) and see where that gets you.
This is not a bug in your code. It is coming from .Net's Socket implementation. If you use the overloaded implementation of EndReceive as below you will not get this exception.
SocketError errorCode;
int nBytesRec = socket.EndReceive(ar, out errorCode);
if (errorCode != SocketError.Success)
{
nBytesRec = 0;
}
find the numbers and then replaced with strings which specified. It is achieved by two methods
Using a regular expression literal
Using keyword RegExp object
Using a regular expression literal:
<script type="text/javascript">
var string = "my contact number is 9545554545. my age is 27.";
alert(string.replace(/\d+/g, "XXX"));
</script>
**Output:**my contact number is XXX. my age is XXX.
for more details:
http://www.infinetsoft.com/Post/How-to-replace-number-with-string-in-JavaScript/1156
Another simple solution is to surround the content variable in your given code with braces like this:
let content = 'Hello world'
axios.put(url, {content}).then(response => {
resolve(response.data.content)
}, response => {
this.handleEditError(response)
})
Caveat: But this will not send it as string; it will wrap it in a json body that will look like this: {content: "Hello world"}
Try below code if you want to use php loop to display
<span>
<select name="birth_month">
<?php for( $m=1; $m<=12; ++$m ) {
$month_label = date('F', mktime(0, 0, 0, $m, 1));
?>
<option value="<?php echo $month_label; ?>"><?php echo $month_label; ?></option>
<?php } ?>
</select>
</span>
<span>
<select name="birth_day">
<?php
$start_date = 1;
$end_date = 31;
for( $j=$start_date; $j<=$end_date; $j++ ) {
echo '<option value='.$j.'>'.$j.'</option>';
}
?>
</select>
</span>
<span>
<select name="birth_year">
<?php
$year = date('Y');
$min = $year - 60;
$max = $year;
for( $i=$max; $i>=$min; $i-- ) {
echo '<option value='.$i.'>'.$i.'</option>';
}
?>
</select>
</span>
In scala , for string Interpolation we have $ that saves the day and make our life much easy:
For Example: You want to define a function that takes input name and age and says Hello With the name and says its age. That can be written like this:
def funcStringInterpolationDemo(name:String,age:Int)=s"Hey ! my name is $name and my age is $age"
Hence , When you call this function: like this :
funcStringInterpolationDemo("Shivansh",22)
Its output would be :
Hey ! my name is Shivansh and my age is 22
You can write the code to change it in the same line, like if you want to add 10 years to the age !
then function could be :
def funcStringInterpolationDemo(name:String,age:Int)=s"Hey ! my name is $name and my age is ${age+10}"
And now the output would be :
Hey ! my name is Shivansh and my age is 32
You could use display: table-row-group
for your div.
<table>
<div style="display: table-row-group">
<tr><td></td></tr>
</div>
<div style="display: table-row-group">
<tr><td></td></tr>
</div>
</table>
In short, it lets you assign values to a variable in an outer (but non-global) scope. See PEP 3104 for all the gory details.
You can catch key event :
function checkEventObj ( _event_ ){
// --- IE explorer
if ( window.event )
return window.event;
// --- Netscape and other explorers
else
return _event_;
}
document.keydown = function(_event) {
var e = checkEventObject(_event);
if( e.ctrlKey && (e.keyCode == 86) )
window.clipboardData.clearData();
}
Not tested but, could help.
Source from comentcamarche and Zakaria
Here's a method which is similar to Kelly's but will remove any pre-existing script with the same source, and uses jQuery.
<script>
function reload_js(src) {
$('script[src="' + src + '"]').remove();
$('<script>').attr('src', src).appendTo('head');
}
reload_js('source_file.js');
</script>
Note that the 'type' attribute is no longer needed for scripts as of HTML5. (http://www.w3.org/html/wg/drafts/html/master/scripting-1.html#the-script-element)
Give the form
an id
, and then:
document.getElementById("yourFormId").submit();
Best practice would probably be to give your link an id
too, and get rid of the event handler:
document.getElementById("yourLinkId").onclick = function() {
document.getElementById("yourFormId").submit();
}
Swift 4 introduced the Codable protocol which does all the magic for these kinds of tasks. Just conform your custom struct/class to it:
struct Player: Codable {
let name: String
let life: Double
}
And for storing in the Defaults you can use the PropertyListEncoder/Decoder:
let player = Player(name: "Jim", life: 3.14)
UserDefaults.standard.set(try! PropertyListEncoder().encode(player), forKey: kPlayerDefaultsKey)
let storedObject: Data = UserDefaults.standard.object(forKey: kPlayerDefaultsKey) as! Data
let storedPlayer: Player = try! PropertyListDecoder().decode(Player.self, from: storedObject)
It will work like that for arrays and other container classes of such objects too:
try! PropertyListDecoder().decode([Player].self, from: storedArray)
try this : SELECT CAST(ROUND([Amount 1]/60,2) AS DECIMAL(10,2)) as TOTAL
In ubuntu to install php_soap
on PHP7 use below commands. Reference
sudo apt-get install php7.0-soap
sudo systemctl restart apache2.service
For older version of php use below command and restart apache.
apt-get install php-soap
Actually when you define any variable as a optional then you need to unwrap that optional value. To fix this problem either you have to declare variable as non option or put !(exclamation) mark behind the variable to unwrap the option value.
var temp : String? // This is an optional.
temp = "I am a programer"
print(temp) // Optional("I am a programer")
var temp1 : String! // This is not optional.
temp1 = "I am a programer"
print(temp1) // "I am a programer"
In the spring jar package, I use new ClassPathResource(filename).getFile()
, which throws the exception:
cannot be resolved to absolute file path because it does not reside in the file system: jar
But using new ClassPathResource(filename).getInputStream()
will solve this problem. The reason is that the configuration file in the jar does not exist in the operating system's file tree,so must use getInputStream()
.
For what it's worth - I had a similar issue, assuming it's related to a Chrome update.
I had to add font-src, and then specify the url because I was using a CDN
<meta http-equiv="Content-Security-Policy" content="default-src 'self'; font-src 'self' data: fonts.gstatic.com;">
The cleanest way is to not (directly) use an iterator at all:
Like this:
Map<Integer, String> hm = new HashMap<Integer, String>();
hm.put(0, "zero");
hm.put(1, "one");
for (Map.Entry<Integer, String> entry : hm.entrySet()) {
// do something with the entry
System.out.println(entry.getKey() + " - " + entry.getValue());
// the getters are typed:
Integer key = entry.getKey();
String value = entry.getValue();
}
This is way more efficient than iterating over keys, because you avoid n calls to get(key)
.
Extending Richard Cook's answer.
Here's the ant
task to run any program (including, but not limited to Java programs):
<target name="run">
<exec executable="name-of-executable">
<arg value="${arg0}"/>
<arg value="${arg1}"/>
</exec>
</target>
Here's the task to run a Java program from a .jar
file:
<target name="run-java">
<java jar="path for jar">
<arg value="${arg0}"/>
<arg value="${arg1}"/>
</java>
</target>
You can invoke either from the command line like this:
ant -Darg0=Hello -Darg1=World run
Make sure to use the -Darg
syntax; if you ran this:
ant run arg0 arg1
then ant
would try to run targets arg0
and arg1
.
In many applications, like MsOffice (until version 2000 or 2002), the maximum number of characters per cell was 255. Moving data from programs able of handling more than 255 characters per field to/from those applications was a nightmare. Currently, the limit is less and less hindering.
I had similar problem.
Function that return all element which include text from arg.
This works for me:
function getElementsByText(document, str, tag = '*') {
return [...document.querySelectorAll(tag)]
.filter(
el => (el.text && el.text.includes(str))
|| (el.children.length === 0 && el.outerText && el.outerText.includes(str)))
}
Declare @Temp As Table (Id Int,Name Varchar(100))
Insert Into @Temp values(1,'A'),(1,'B'),(1,'C'),(2,'D'),(2,'E'),(3,'F'),(3,'G'),(3,'H'),(4,'I'),(5,'J'),(5,'K')
Select X.ID,
stuff((Select ','+ Z.Name from @Temp Z Where X.Id =Z.Id For XML Path('')),1,1,'')
from @Temp X
Group by X.ID
instead of this margin struggle just do
input{
width:100%;
background:transparent !important;
}
this way the cell border is visible and you can control row background color
Mimo's answer and Anooj VM 's answer both are awesome but there is a small problem if you have a large list, it's possible that the height of the frame will cutoff some of your cells.
So. I have modified the answer a little bit:
dispatch_async(dispatch_get_main_queue()) {
//This code will run in the main thread:
CGFloat newHeight=self.tableView.contentSize.height;
CGFloat screenHeightPermissible=(self.view.bounds.size.height-self.tableView.frame.origin.y);
if (newHeight>screenHeightPermissible)
{
//so that table view remains scrollable when 'newHeight' exceeds the screen bounds
newHeight=screenHeightPermissible;
}
CGRect frame = self.tableView.frame;
frame.size.height = newHeight;
self.tableView.frame = frame;
}
$.fn.scrollEnd = function(callback, timeout) {
$(this).scroll(function(){
var $this = $(this);
if ($this.data('scrollTimeout')) {
clearTimeout($this.data('scrollTimeout'));
}
$this.data('scrollTimeout', setTimeout(callback,timeout));
});
};
$(window).scroll(function(){
$('.main').fadeOut();
});
$(window).scrollEnd(function(){
$('.main').fadeIn();
}, 700);
That should do the Trick!
If your system supports the arc4random
family of functions I would recommend using those instead the standard rand
function.
The arc4random
family includes:
uint32_t arc4random(void)
void arc4random_buf(void *buf, size_t bytes)
uint32_t arc4random_uniform(uint32_t limit)
void arc4random_stir(void)
void arc4random_addrandom(unsigned char *dat, int datlen)
arc4random
returns a random 32-bit unsigned integer.
arc4random_buf
puts random content in it's parameter buf : void *
. The amount of content is determined by the bytes : size_t
parameter.
arc4random_uniform
returns a random 32-bit unsigned integer which follows the rule: 0 <= arc4random_uniform(limit) < limit
, where limit is also an unsigned 32-bit integer.
arc4random_stir
reads data from /dev/urandom
and passes the data to arc4random_addrandom
to additionally randomize it's internal random number pool.
arc4random_addrandom
is used by arc4random_stir
to populate it's internal random number pool according to the data passed to it.
If you do not have these functions, but you are on Unix, then you can use this code:
/* This is C, not C++ */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h> /* exit */
#include <stdio.h> /* printf */
int urandom_fd = -2;
void urandom_init() {
urandom_fd = open("/dev/urandom", O_RDONLY);
if (urandom_fd == -1) {
int errsv = urandom_fd;
printf("Error opening [/dev/urandom]: %i\n", errsv);
exit(1);
}
}
unsigned long urandom() {
unsigned long buf_impl;
unsigned long *buf = &buf_impl;
if (urandom_fd == -2) {
urandom_init();
}
/* Read sizeof(long) bytes (usually 8) into *buf, which points to buf_impl */
read(urandom_fd, buf, sizeof(long));
return buf_impl;
}
The urandom_init
function opens the /dev/urandom
device, and puts the file descriptor in urandom_fd
.
The urandom
function is basically the same as a call to rand
, except more secure, and it returns a long
(easily changeable).
However, /dev/urandom
can be a little slow, so it is recommended that you use it as a seed for a different random number generator.
If your system does not have a /dev/urandom
, but does have a /dev/random
or similar file, then you can simply change the path passed to open
in urandom_init
. The calls and APIs used in urandom_init
and urandom
are (I believe) POSIX-compliant, and as such, should work on most, if not all POSIX compliant systems.
Notes: A read from /dev/urandom
will NOT block if there is insufficient entropy available, so values generated under such circumstances may be cryptographically insecure. If you are worried about that, then use /dev/random
, which will always block if there is insufficient entropy.
If you are on another system(i.e. Windows), then use rand
or some internal Windows specific platform-dependent non-portable API.
Wrapper function for urandom
, rand
, or arc4random
calls:
#define RAND_IMPL /* urandom(see large code block) | rand | arc4random */
int myRandom(int bottom, int top){
return (RAND_IMPL() % (top - bottom)) + bottom;
}
x86 is rather broad range of devices.
For totally generic x86 target, an assembly block with "rep movsd" could blast out zeros to memory 32-bits at time. Try to make sure the bulk of this work is DWORD aligned.
For chips with mmx, an assembly loop with movq could hit 64bits at a time.
You might be able to get a C/C++ compiler to use a 64-bit write with a pointer to a long long or _m64. Target must be 8 byte aligned for the best performance.
for chips with sse, movaps is fast, but only if the address is 16 byte aligned, so use a movsb until aligned, and then complete your clear with a loop of movaps
Win32 has "ZeroMemory()", but I forget if thats a macro to memset, or an actual 'good' implementation.
select *
FROM XMLTABLE('/person/row'
PASSING
xmltype('
<person>
<row>
<name>Tom</name>
<Address>
<State>California</State>
<City>Los angeles</City>
</Address>
</row>
<row>
<name>Jim</name>
<Address>
<State>California</State>
<City>Los angeles</City>
</Address>
</row>
</person>
')
COLUMNS
--describe columns and path to them:
name varchar2(20) PATH './name',
state varchar2(20) PATH './Address/State',
city varchar2(20) PATH './Address/City'
) xmlt
;
You can use the magic constants __METHOD__
(includes the class name) or __FUNCTION__
(just function name) depending on if it's a method or a function... =)
You need to use the option -f
:
$ grep -f A B
The option -F
does a fixed string search where as -f
is for specifying a file of patterns. You may want both if the file only contains fixed strings and not regexps.
$ grep -Ff A B
You may also want the -w
option for matching whole words only:
$ grep -wFf A B
Read man grep
for a description of all the possible arguments and what they do.
Alternate form of the answer by @rumpel
with open(filename, 'w'): pass
To answer your question, yes you may pass JSON in the URI as part of a GET request (provided you URL-encode). However, considering your reason for doing this is due to the length of the URI, using JSON will be self-defeating (introducing more characters than required).
I suggest you send your parameters in body of a POST request, either in regular CGI style (param1=val1¶m2=val2
) or JSON (parsed by your API upon receipt)
You don't have to export your VMs at all. You can move the VM and clone to a TAXI host in vCenter 1. Then add the host to vCenter 2, and vMotion away whatever VMs to other hosts previously managed by vCenter 2. When done, you can add the TAXI host back to vCenter 1.
Cleanest version specially good if you just want to get the .value
from the element.
document.getElementById('elementsid') ? function_if_exists(); function_if_doesnt_exists();
Simplest - and I changed the checkbox class to ID as well:
$(function() {_x000D_
$("#coupon_question").on("click",function() {_x000D_
$(".answer").toggle(this.checked);_x000D_
});_x000D_
});
_x000D_
.answer { display:none }
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>_x000D_
<fieldset class="question">_x000D_
<label for="coupon_question">Do you have a coupon?</label>_x000D_
<input id="coupon_question" type="checkbox" name="coupon_question" value="1" />_x000D_
<span class="item-text">Yes</span>_x000D_
</fieldset>_x000D_
_x000D_
<fieldset class="answer">_x000D_
<label for="coupon_field">Your coupon:</label>_x000D_
<input type="text" name="coupon_field" id="coupon_field" />_x000D_
</fieldset>
_x000D_
Same as WorksheetFunction.EncodeUrl
with UTF-8 support:
Public Function EncodeURL(url As String) As String
Dim buffer As String, i As Long, c As Long, n As Long
buffer = String$(Len(url) * 12, "%")
For i = 1 To Len(url)
c = AscW(Mid$(url, i, 1)) And 65535
Select Case c
Case 48 To 57, 65 To 90, 97 To 122, 45, 46, 95 ' Unescaped 0-9A-Za-z-._ '
n = n + 1
Mid$(buffer, n) = ChrW(c)
Case Is <= 127 ' Escaped UTF-8 1 bytes U+0000 to U+007F '
n = n + 3
Mid$(buffer, n - 1) = Right$(Hex$(256 + c), 2)
Case Is <= 2047 ' Escaped UTF-8 2 bytes U+0080 to U+07FF '
n = n + 6
Mid$(buffer, n - 4) = Hex$(192 + (c \ 64))
Mid$(buffer, n - 1) = Hex$(128 + (c Mod 64))
Case 55296 To 57343 ' Escaped UTF-8 4 bytes U+010000 to U+10FFFF '
i = i + 1
c = 65536 + (c Mod 1024) * 1024 + (AscW(Mid$(url, i, 1)) And 1023)
n = n + 12
Mid$(buffer, n - 10) = Hex$(240 + (c \ 262144))
Mid$(buffer, n - 7) = Hex$(128 + ((c \ 4096) Mod 64))
Mid$(buffer, n - 4) = Hex$(128 + ((c \ 64) Mod 64))
Mid$(buffer, n - 1) = Hex$(128 + (c Mod 64))
Case Else ' Escaped UTF-8 3 bytes U+0800 to U+FFFF '
n = n + 9
Mid$(buffer, n - 7) = Hex$(224 + (c \ 4096))
Mid$(buffer, n - 4) = Hex$(128 + ((c \ 64) Mod 64))
Mid$(buffer, n - 1) = Hex$(128 + (c Mod 64))
End Select
Next
EncodeURL = Left$(buffer, n)
End Function
I had similar problem and i solved it following way.
Solve as follows:
Function prototype declarations and global variable should be in test.h file and you can not initialize global variable in header file.
Function definition and use of global variable in test.c file
if you initialize global variables in header it will have following error
multiple definition of `_ test'| obj\Debug\main.o:path\test.c|1|first defined here|
Just declarations of global variables in Header file no initialization should work.
Hope it helps
Cheers
Follow
Create default db folder.
c:\data\db
and also log folder
c:\data\log\mongo.log
or use following commands in command-prompt
mkdir c:\data\log
mkdir c:\data\db
Create config file in bin folder of mongo (or you may in save your desired destination).
Add following in text file named "mongod" and save it as
mongod.cfg
dbpath=c:\data\db
logpath=c:\data\log\mongo.log
or use following commands in command-prompt
echo dbpath=c:\data\db>> "mongod.cfg"
echo logpath=c:\data\log\mongo.log>> "mongod.cfg"
Now open command-prompt (administrator) and run the following command to start mongo server
mongod
Open another command-prompt (don't close 1st prompt) and run client command:
mongo
Hope this will help or you have done this already.
You can use jquery.form.js plugin to upload image via ajax to the server.
http://malsup.com/jquery/form/
Here is the sample jQuery ajax image upload script
(function() {
$('form').ajaxForm({
beforeSubmit: function() {
//do validation here
},
beforeSend:function(){
$('#loader').show();
$('#image_upload').hide();
},
success: function(msg) {
///on success do some here
}
}); })();
If you have any doubt, please refer following ajax image upload tutorial here
http://www.smarttutorials.net/ajax-image-upload-using-jquery-php-mysql/
If I am not mistaken, it will be onunload event.
"Occurs when the application is about to be unloaded." - MSDN
They are both instances of Context, but the application instance is tied to the lifecycle of the application, while the Activity instance is tied to the lifecycle of an Activity. Thus, they have access to different information about the application environment.
If you read the docs at getApplicationContext it notes that you should only use this if you need a context whose lifecycle is separate from the current context. This doesn't apply in either of your examples.
The Activity context presumably has some information about the current activity that is necessary to complete those calls. If you show the exact error message, might be able to point to what exactly it needs.
But in general, use the activity context unless you have a good reason not to.
I prefer approach of Tommy Carlier, but with a little change.
foreach (DataColumn column in row.Table.Columns)
if (!row.IsNull(column))
return false;
return true;
I suppose this approach looks more simple and bright.
You basically need a helper method to read a stream into memory. This works pretty well:
public static byte[] readFully(InputStream stream) throws IOException
{
byte[] buffer = new byte[8192];
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int bytesRead;
while ((bytesRead = stream.read(buffer)) != -1)
{
baos.write(buffer, 0, bytesRead);
}
return baos.toByteArray();
}
Then you'd call it with:
public static byte[] loadFile(String sourcePath) throws IOException
{
InputStream inputStream = null;
try
{
inputStream = new FileInputStream(sourcePath);
return readFully(inputStream);
}
finally
{
if (inputStream != null)
{
inputStream.close();
}
}
}
Don't mix up text and binary data - it only leads to tears.
It’s a chicken-and-egg problem. You won’t be able to do it because you need to load the assets to display the progress bar widget, by which time your page will be either fully or partially downloaded. Also, you need to know the total size of the page prior to the user requesting in order to calculate a percentage.
It’s more hassle than it’s worth.
I believe it needs to be done in a single query batch. Basically, the GO statements are breaking your commands into multiple batches and that is causing the issue. Change it to this:
SET IDENTITY_INSERT tbl_content ON
/* GO */
...insert command...
SET IDENTITY_INSERT tbl_content OFF
GO
try this
var script = document.createElement('script');
script.type = 'text/javascript';
script.src = 'url';
document.getElementsByTagName('head')[0].appendChild(script);
Use the pickle
module to save it to disk and load later on.
This is how I've implemented this in my project.
function array_map_associative(callable $callback, $array) {
/* map original array keys, and call $callable with $key and value of $key from original array. */
return array_map(function($key) use ($callback, $array){
return $callback($key, $array[$key]);
}, array_keys($array));
}
toBe()
versus toEqual()
: toEqual()
checks equivalence. toBe()
, on the other hand, makes sure that they're the exact same object.
I would say use toBe()
when comparing values, and toEqual()
when comparing objects.
When comparing primitive types, toEqual()
and toBe()
will yield the same result. When comparing objects, toBe()
is a stricter comparison, and if it is not the exact same object in memory this will return false. So unless you want to make sure it's the exact same object in memory, use toEqual()
for comparing objects.
Check this link out for more info : http://evanhahn.com/how-do-i-jasmine/
Now when looking at the difference between toBe()
and toEqual()
when it comes to numbers, there shouldn't be any difference so long as your comparison is correct. 5
will always be equivalent to 5
.
A nice place to play around with this to see different outcomes is here
An easy way to look at toBe()
and toEqual()
is to understand what exactly they do in JavaScript. According to Jasmine API, found here:
toEqual() works for simple literals and variables, and should work for objects
toBe() compares with
===
Essentially what that is saying is toEqual()
and toBe()
are similar Javascripts ===
operator except toBe()
is also checking to make sure it is the exact same object, in that for the example below objectOne === objectTwo //returns false
as well. However, toEqual()
will return true in that situation.
Now, you can at least understand why when given:
var objectOne = {
propertyOne: str,
propertyTwo: num
}
var objectTwo = {
propertyOne: str,
propertyTwo: num
}
expect(objectOne).toBe(objectTwo); //returns false
That is because, as stated in this answer to a different, but similar question, the ===
operator actually means that both operands reference the same object, or in case of value types, have the same value.
You can apply Object.prototype.toString
to any object:
var toString = Object.prototype.toString;
console.log(toString.call([]));
//-> [object Array]
console.log(toString.call(/reg/g));
//-> [object RegExp]
console.log(toString.call({}));
//-> [object Object]
This works well in all browsers, with the exception of IE - when calling this on a variable obtained from another window it will just spit out [object Object]
.
formatCalendarDate = function (dateTime) {
return moment.utc(dateTime).format('LL')
}
I've seen this problem a few times (got it again right now on my home computer with Eclipse 4.2).
Forcing a resave (by changing the classpath e.g. by adding a library, save, change-back) works temporarily. But the problem comes back when Eclipse is restarted :(
Nuking the Eclipse workspace from orbit will permanently fix it (until next time). But there must be a better way!
Microsoft Outlook 2002 and above removes "extra line breaks" from text messages by default (kb308319). That is, Outlook seems to simply ignore line feed and/or carriage return sequences in text messages, running all of the lines together.
This can cause problems if you're trying to write code that will automatically generate an email message to be read by someone using Outlook.
For example, suppose you want to supply separate pieces of information each on separate lines for clarity, like this:
Transaction needs attention!
PostedDate: 1/30/2009
Amount: $12,222.06
TransID: 8gk288g229g2kg89
PostalCode: 91543
Your Outlook recipient will see the information all smashed together, as follows:
Transaction needs attention! PostedDate: 1/30/2009 Amount: $12,222.06 TransID: 8gk288g229g2kg89 ZipCode: 91543
There doesn't seem to be an easy solution. Alternatives are:
When you use the ShowDialog()
or Show()
method, and then close the form, the form object does not get completely destroyed (closing != destruction). It will remain alive, only it's in a "closed" state, and you can still do things to it.
change your method to:
$scope.toggleChecked = function (index) {
$scope.checked.push($scope.items[index]);
$scope.items.splice(index, 1);
};
See an example below (this example uses the native JSON object). My changes are commented in CAPITALS:
function Foo(obj) // CONSTRUCTOR CAN BE OVERLOADED WITH AN OBJECT
{
this.a = 3;
this.b = 2;
this.test = function() {return this.a*this.b;};
// IF AN OBJECT WAS PASSED THEN INITIALISE PROPERTIES FROM THAT OBJECT
for (var prop in obj) this[prop] = obj[prop];
}
var fooObj = new Foo();
alert(fooObj.test() ); //Prints 6
// INITIALISE A NEW FOO AND PASS THE PARSED JSON OBJECT TO IT
var fooJSON = new Foo(JSON.parse('{"a":4,"b":3}'));
alert(fooJSON.test() ); //Prints 12
I couldn't get the top two answers to work, and none of the other answers were helpful to me. So I paid three people $30 from Reddit r/forhire and Upwork and got some really good answers. This answer should save you $90.
HTML
<div id="chatscreen">
<div id="inner">
</div>
</div>
CSS
#chatscreen {
width: 300px;
overflow-y: scroll;
max-height:100px;
}
Javascript
$(function(){
var scrolled = false;
var lastScroll = 0;
var count = 0;
$("#chatscreen").on("scroll", function() {
var nextScroll = $(this).scrollTop();
if (nextScroll <= lastScroll) {
scrolled = true;
}
lastScroll = nextScroll;
console.log(nextScroll, $("#inner").height())
if ((nextScroll + 100) == $("#inner").height()) {
scrolled = false;
}
});
function updateScroll(){
if(!scrolled){
var element = document.getElementById("chatscreen");
var inner = document.getElementById("inner");
element.scrollTop = inner.scrollHeight;
}
}
// Now let's load our messages
function load_messages(){
$( "#inner" ).append( "Test" + count + "<br/>" );
count = count + 1;
updateScroll();
}
setInterval(load_messages,300);
});
Preview the site bros' solution
HTML
<div id="chatscreen">
</div>
CSS
#chatscreen {
height: 300px;
border: 1px solid purple;
overflow: scroll;
}
Javascript
$(function(){
var isScrolledToBottom = false;
// Now let's load our messages
function load_messages(){
$( "#chatscreen" ).append( "<br>Test" );
updateScr();
}
var out = document.getElementById("chatscreen");
var c = 0;
$("#chatscreen").on('scroll', function(){
console.log(out.scrollHeight);
isScrolledToBottom = out.scrollHeight - out.clientHeight <= out.scrollTop + 10;
});
function updateScr() {
// allow 1px inaccuracy by adding 1
//console.log(out.scrollHeight - out.clientHeight, out.scrollTop + 1);
var newElement = document.createElement("div");
newElement.innerHTML = c++;
out.appendChild(newElement);
console.log(isScrolledToBottom);
// scroll to bottom if isScrolledToBotto
if(isScrolledToBottom) {out.scrollTop = out.scrollHeight - out.clientHeight; }
}
var add = setInterval(updateScr, 1000);
setInterval(load_messages,300); // change to 300 to show the latest message you sent after pressing enter // comment this line and it works, uncomment and it fails
// leaving it on 1000 shows the second to last message
setInterval(updateScroll,30);
});
HTML
<div id="chatscreen"></div>
CSS
#chatscreen {
height: 100px;
overflow: scroll;
border: 1px solid #000;
}
Javascript
$(function(){
// Now let's load our messages
function load_messages(){
$( "#chatscreen" ).append( "<br>Test" );
}
var out = document.getElementById("chatscreen");
var c = 0;
var add = setInterval(function() {
// allow 1px inaccuracy by adding 1
var isScrolledToBottom = out.scrollHeight - out.clientHeight <= out.scrollTop + 1;
load_messages();
// scroll to bottom if isScrolledToBotto
if(isScrolledToBottom) {out.scrollTop = out.scrollHeight - out.clientHeight; }
}, 1000);
setInterval(updateScroll,30);
});
In DOS/Windows Batch most commands return an exitCode, called "errorlevel", that is a value that customarily is equal to zero if the command ends correctly, or a number greater than zero if ends because an error, with greater numbers for greater errors (hence the name).
There are a couple methods to check that value, but the original one is:
IF ERRORLEVEL value command
Previous IF test if the errorlevel returned by the previous command was GREATER THAN OR EQUAL the given value and, if this is true, execute the command. For example:
verify bad-param
if errorlevel 1 echo Errorlevel is greater than or equal 1
echo The value of errorlevel is: %ERRORLEVEL%
Findstr command return 0 if the string was found and 1 if not:
CD C:\MyFolder
findstr /c:"stringToCheck" fileToCheck.bat
IF ERRORLEVEL 1 XCOPY "C:\OtherFolder\fileToCheck.bat" "C:\MyFolder" /s /y
Previous code will copy the file if the string was NOT found in the file.
CD C:\MyFolder
findstr /c:"stringToCheck" fileToCheck.bat
IF NOT ERRORLEVEL 1 XCOPY "C:\OtherFolder\fileToCheck.bat" "C:\MyFolder" /s /y
Previous code copy the file if the string was found. Try this:
findstr "string" file
if errorlevel 1 (
echo String NOT found...
) else (
echo String found
)
Pass the mouse over the container and go hovering on the divs I use this for jQuery DropDown menus mainly:
Copy the whole document and create a .html file you'll be able to figure out on your own from that!
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>The Divs Case</title>
<style type="text/css">
* {margin:0px auto;
padding:0px;}
.container {width:800px;
height:600px;
background:#FFC;
border:solid #F3F3F3 1px;}
.div01 {float:right;
background:#000;
height:200px;
width:200px;
display:none;}
.div02 {float:right;
background:#FF0;
height:150px;
width:150px;
display:none;}
.div03 {float:right;
background:#FFF;
height:100px;
width:100px;
display:none;}
div.container:hover div.div01 {display:block;}
div.container div.div01:hover div.div02 {display:block;}
div.container div.div01 div.div02:hover div.div03 {display:block;}
</style>
</head>
<body>
<div class="container">
<div class="div01">
<div class="div02">
<div class="div03">
</div>
</div>
</div>
</div>
</body>
</html>
// Set flash data
$this->session->set_flashdata('message_name', 'This is my message');
// After that you need to used redirect function instead of load view such as
redirect("admin/signup");
// Get Flash data on view
$this->session->flashdata('message_name');
I use the following formula that extends previous answers:
class A(object):
def __init__(self):
print "world"
class B(A):
def __init__(self):
print "hello"
super(self.__class__, self).__init__()
B()
This way you don't have to repeat the name of the class in the call to super. It can come handy if you are coding a large number of classes, and want to make your code in the initialiser methods independent of the class name.
If you want to restrict your search only to files you should consider to use -type f
in your search
try to use also -iname
for case-insensitive search
Example:
find /path -iname 'yourstring*' -type f
You could also perform some operations on results without pipe sign or xargs
Example:
Search for files and show their size in MB
find /path -iname 'yourstring*' -type f -exec du -sm {} \;
You could use Java reflection to do this. The method would be represented as an instance of java.lang.reflect.Method.
import java.lang.reflect.Method;
public class Demo {
public static void main(String[] args) throws Exception{
Class[] parameterTypes = new Class[1];
parameterTypes[0] = String.class;
Method method1 = Demo.class.getMethod("method1", parameterTypes);
Demo demo = new Demo();
demo.method2(demo, method1, "Hello World");
}
public void method1(String message) {
System.out.println(message);
}
public void method2(Object object, Method method, String message) throws Exception {
Object[] parameters = new Object[1];
parameters[0] = message;
method.invoke(object, parameters);
}
}
os.getenv('HOSTNAME')
and os.environ['HOSTNAME']
don't always work. In cron jobs and WSDL, HTTP HOSTNAME isn't set. Use this instead:
import socket
socket.gethostbyaddr(socket.gethostname())[0]
It always (even on Windows) returns a fully qualified host name, even if you defined a short alias in /etc/hosts.
If you defined an alias in /etc/hosts then socket.gethostname()
will return the alias. platform.uname()[1]
does the same thing.
I ran into a case where the above didn't work. This is what I'm using now:
import socket
if socket.gethostname().find('.')>=0:
name=socket.gethostname()
else:
name=socket.gethostbyaddr(socket.gethostname())[0]
It first calls gethostname to see if it returns something that looks like a host name, if not it uses my original solution.
You could have probably concluded your question after the second paragraph, rather than calling people "insane" simply because they have a different viewpoint than you do and otherwise trying to mock professionals who may have a very good reason for feeling the way that they do.
As to your question, while there are certainly situations where a cursor may be called for, in my experience developers decide that a cursor "must" be used FAR more often than is actually the case. The chance of someone erring on the side of too much use of cursors vs. not using them when they should is MUCH higher in my opinion.
The simple option is just to set the forms's AcceptButton to the button you want pressed (usually "OK" etc):
TextBox tb = new TextBox();
Button btn = new Button { Dock = DockStyle.Bottom };
btn.Click += delegate { Debug.WriteLine("Submit: " + tb.Text); };
Application.Run(new Form { AcceptButton = btn, Controls = { tb, btn } });
If this isn't an option, you can look at the KeyDown event etc, but that is more work...
TextBox tb = new TextBox();
Button btn = new Button { Dock = DockStyle.Bottom };
btn.Click += delegate { Debug.WriteLine("Submit: " + tb.Text); };
tb.KeyDown += (sender,args) => {
if (args.KeyCode == Keys.Return)
{
btn.PerformClick();
}
};
Application.Run(new Form { Controls = { tb, btn } });
I was tinkering around when moving our applications to HTML5 with RESTful apis in the backend. The solution that I came up with was:
As you can see, this reduces the frequent refresh token requests. If user closes the browser/app before the renew token call is triggered, the previous token will expire in time and user will have to re-login.
A more complicated strategy can be implemented to cater for user inactivity (e.g. neglected an opened browser tab). In that case, the renew token call should include the expected expiring time which should not exceed the defined session time. The application will have to keep track of the last user interaction accordingly.
I don't like the idea of setting long expiration hence this approach may not work well with native applications requiring less frequent authentication.
You can use the *_Prefix.pch
file to declare project wide macros.
That file is usually in you Other Sources group.
The first thing is to make a comparison of functions of SHA and opt for the safest algorithm that supports your programming language (PHP).
Then you can chew the official documentation to implement the hash()
function that receives as argument the hashing algorithm you have chosen and the raw password.
sha256 => 64 bits
sha384 => 96 bits
sha512 => 128 bits
The more secure the hashing algorithm is, the higher the cost in terms of hashing and time to recover the original value from the server side.
$hashedPassword = hash('sha256', $password);
To find which library is being used you could run
$ /sbin/ldconfig -p | grep stdc++
libstdc++.so.6 (libc6) => /usr/lib/libstdc++.so.6
The list of compatible versions for libstdc++ version 3.4.0 and above is provided by
$ strings /usr/lib/libstdc++.so.6 | grep LIBCXX
GLIBCXX_3.4
GLIBCXX_3.4.1
GLIBCXX_3.4.2
...
For earlier versions the symbol GLIBCPP
is defined.
The date stamp of the library is defined in a macro __GLIBCXX__
or __GLIBCPP__
depending on the version:
// libdatestamp.cxx
#include <cstdio>
int main(int argc, char* argv[]){
#ifdef __GLIBCPP__
std::printf("GLIBCPP: %d\n",__GLIBCPP__);
#endif
#ifdef __GLIBCXX__
std::printf("GLIBCXX: %d\n",__GLIBCXX__);
#endif
return 0;
}
$ g++ libdatestamp.cxx -o libdatestamp
$ ./libdatestamp
GLIBCXX: 20101208
The table of datestamps of libstdc++ versions is listed in the documentation:
the solution:
at >nul
if %ErrorLevel% equ 0 ( echo Administrator ) else ( echo NOT Administrator )
does not work under Windows 10
for all versions of Windows can be do so:
openfiles >nul 2>&1
if %ErrorLevel% equ 0 ( echo Administrator ) else ( echo NOT Administrator )
You could also enter the following into a CMD window:
dir <ParentDirectory> /X
Where <ParentDirectory>
is replaced with the full path of the directory containing the item you would like the name for.
While the output is not a simple as Timbo's answer, it will list all the items in the specified directory with the actual name and (if different) the short name.
If you do use for %I in (.) do echo %~sI
you can replace the .
with the full path of the file/folder to get the short name of that file/folder (otherwise the short name of the current folder is returned).
Tested on Windows 7 x64.
If we want to apply the same functionality and features to more than one selectors then we use multiple selector options. I think we can say this feature is used like reusability. write a jquery function and just add multiple selectors in which we want the same features.
Kindly take a look in below example:
$( "div, span, .paragraph, #paraId" ).css( {"font-family": "tahoma", "background": "red"} );
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<div>Div element</div>_x000D_
<p class="paragraph">Paragraph with class selector</p>_x000D_
<p id="paraId">Paragraph with id selector</p>_x000D_
<span>Span element</span>
_x000D_
I hope it will help you. Namaste
$ch = curl_init();
$data = array(
'client_id' => 'xx',
'client_secret' => 'xx',
'redirect_uri' => $x,
'grant_type' => 'xxx',
'code' => $xx,
);
$data = http_build_query($data);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_URL, "https://example.com");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
$output = curl_exec($ch);
If you have the file descriptor fstat()
returns a stat structure which contain the file size.
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
// fd = fileno(f); //if you have a stream (e.g. from fopen), not a file descriptor.
struct stat buf;
fstat(fd, &buf);
off_t size = buf.st_size;
This might work for you:
sed 's|$ROOT|'"${HOME}"'|g' abc.sh > abc.sh.1
os.listdir()
will be slightly more efficient than using glob.glob
. To test if a filename is an ordinary file (and not a directory or other entity), use os.path.isfile()
:
import os, os.path
# simple version for working with CWD
print len([name for name in os.listdir('.') if os.path.isfile(name)])
# path joining version for other paths
DIR = '/tmp'
print len([name for name in os.listdir(DIR) if os.path.isfile(os.path.join(DIR, name))])
++x is called preincrement while x++ is called postincrement.
int x = 5, y = 5;
System.out.println(++x); // outputs 6
System.out.println(x); // outputs 6
System.out.println(y++); // outputs 5
System.out.println(y); // outputs 6
I created a custom useQuery hook
import { useLocation } from "react-router-dom";
const useQuery = (): URLSearchParams => {
return new URLSearchParams(useLocation().search)
}
export default useQuery
Use it as
const query = useQuery();
const id = query.get("id") as string
Send it as so
history.push({
pathname: "/template",
search: `id=${values.id}`,
});
Edit:
It actually just occurred to me that in Xcode 7b4, UI testing now has
expectationForPredicate:evaluatedWithObject:handler:
Original:
Another way is to spin the run loop for a set amount of time. Really only useful if you know how much (estimated) time you'll need to wait for
Obj-C:
[[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow: <<time to wait in seconds>>]]
Swift:
NSRunLoop.currentRunLoop().runMode(NSDefaultRunLoopMode, beforeDate: NSDate(timeIntervalSinceNow: <<time to wait in seconds>>))
This is not super useful if you need to test some conditions in order to continue your test. To run conditional checks, use a while
loop.
I don't think any of these answers meet my need, unless I am fundamentally misunderstanding something.
I have an app (originally an iPad app) that I want to run both on an iPad and on the Mac, under Catalyst. I'm using the plist option to scale the Mac interface to match the iPad, but would like to migrate to AppKit if that is reasonable. When running on a Mac, I believe that all of the aforementioned approaches tell me that I'm on an iPad. The Catalyst fake-out is pretty thorough.
For most concerns I indeed understand that the code should pretend it's on an iPad when thus running on a Mac. One exception is that the rolling picker is not available on the Mac under Catalyst, but is on the iPad. I want to figure out whether to create a UIPickerView or to do something different, at run time. Run-time selection is crucial because I want to use a single binary to run both on the iPad and Mac in the long term, while making the best use of the supported UI standards on each.
The APIs give potentially misleading results to the casual pre-Catalyst reader. For example, [UIDevice currentDevice].model
returns @"iPad"
when running under Catalyst on a Mac. The user interface idiom APIs sustain the same illusion.
I found that you really need to look deeper. I start with this information:
NSString *const deviceModel = [UIDevice currentDevice].model;
NSProcessInfo *const processInfo = [[NSProcessInfo alloc] init];
const bool isIosAppOnMac = processInfo.iOSAppOnMac; // Note: this will be "no" under Catalyst
const bool isCatalystApp = processInfo.macCatalystApp;
Then you can combine these queries with expressions like [deviceModel hasPrefix: @"iPad"]
to sort out the kinds of subtleties I'm facing. For my case, I explicitly want to avoid making a UIPickerView if the indicated isCatalystApp
is true
, independent of "misleading" information about the interface idiom, or the illusions sustained by isIosAppOnMac
and deviceModel
.
Now I'm curious what happens if I move the Mac app to run over on my iPad sidecar...
They both give you the same results but the key difference I see is that you cannot specify a ResourceType
in DisplayName
attribute. For an example in MVC 2, you had to subclass the DisplayName
attribute to provide resource via localization. Display
attribute (new in MVC3 and .NET4) supports ResourceType
overload as an "out of the box" property.
git for-each-ref --format='%(refname:short) <- %(upstream:short)' refs/heads
will show a line for each local branch. A tracking branch will look like:
master <- origin/master
A non-tracking one will look like:
test <-
here's a regex one for ya.
update table
set col1=null
where col1 not like '%[a-z,0-9]%'
essentially finds any columns that dont have letters or numbers in them and sets it to null. might have to update if you have columns with just special characters.
I got it because I wasn't using[self performSegueWithIdentifier:sender:]
and -(void) prepareForSegue:(UIstoryboardSegue *)
right
What helped me was to register the source directory for jni files in the build.gradle file. Add this to your gradle file:
android {
sourceSets {
main {
jniLibs.srcDir '[YOUR_JNI_DIR]' // i.e. 'libs'
}
}
}
, do it like this example :
first creat state of the objects:
const [isSelected, setSelection] = useState({ id_1: false }, { id_2: false }, { id_3: false });
then change the value on of them:
// if the id_1 is false make it true or return it false.
onValueChange={() => isSelected.id_1 == false ? setSelection({ ...isSelected, id_1: true }) : setSelection({ ...isSelected, id_1: false })}
// Get image form video URL
$url = $video['video_url'];
$urls = parse_url($url);
//Expect the URL to be http://youtu.be/abcd, where abcd is the video ID
if ($urls['host'] == 'youtu.be') :
$imgPath = ltrim($urls['path'],'/');
//Expect the URL to be http://www.youtube.com/embed/abcd
elseif (strpos($urls['path'],'embed') == 1) :
$imgPath = end(explode('/',$urls['path']));
//Expect the URL to be abcd only
elseif (strpos($url,'/') === false):
$imgPath = $url;
//Expect the URL to be http://www.youtube.com/watch?v=abcd
else :
parse_str($urls['query']);
$imgPath = $v;
endif;