https://play.golang.org/p/JGZ7mN0-U-
for k, v := range m {
fmt.Printf("key[%s] value[%s]\n", k, v)
}
or
for k := range m {
fmt.Printf("key[%s] value[%s]\n", k, m[k])
}
Go language specs for for
statements specifies that the first value is the key, the second variable is the value, but doesn't have to be present.
In (at least) Ubuntu when using bash
, it tells you what package you need to install if you type in a command and its not found in your path. My terminal says you need to install 'texinfo' package.
sudo apt-get install texinfo
@Test
public void testSortedMaps() {
Map<String, String> map1 = new HashMap<String, String>();
map1.put("name", "Josh");
Map<String, String> map2 = new HashMap<String, String>();
map2.put("name", "Anna");
Map<String, String> map3 = new HashMap<String, String>();
map3.put("name", "Bernie");
List<Map<String, String>> mapList = new ArrayList<Map<String, String>>();
mapList.add(map1);
mapList.add(map2);
mapList.add(map3);
Collections.sort(mapList, new Comparator<Map<String, String>>() {
public int compare(final Map<String, String> o1, final Map<String, String> o2) {
return o1.get("name").compareTo(o2.get("name"));
}
});
Assert.assertEquals("Anna", mapList.get(0).get("name"));
Assert.assertEquals("Bernie", mapList.get(1).get("name"));
Assert.assertEquals("Josh", mapList.get(2).get("name"));
}
I had a similar issue in Mac where svn was picking mac login as user name and I was getting error as
svn: E170013: Unable to connect to a repository at URL 'https://repo:8443/svn/proj/trunk'
svn: E175013: Access to '/svn/proj/trunk' forbidden
I used the --username
along with svn command to pass the correct username which helped me.
Alternatively, you can delete ~/.subversion/auth
file, after which svn will prompt you for username.
A simple solution using fscanf
:
void read_ints (const char* file_name)
{
FILE* file = fopen (file_name, "r");
int i = 0;
fscanf (file, "%d", &i);
while (!feof (file))
{
printf ("%d ", i);
fscanf (file, "%d", &i);
}
fclose (file);
}
I had gotten frustrated with this problem myself and so I modified the filter that was created by @Trevor Senior as I was running into an issue with my console saying that it could not use the reverse method. I also, wanted to keep the integrity of the object because this is what Angular is originally using in a ng-repeat directive. In this case I used the input of stupid (key) because the console will get upset saying there are duplicates and in my case I needed to track by $index.
Filter:
angular.module('main').filter('reverse', function() {
return function(stupid, items) {
var itemss = items.files;
itemss = itemss.reverse();
return items.files = itemss;
};
});
HTML:
<div ng-repeat="items in items track by $index | reverse: items">
Further to the answer by Jon Skeet, which uses this example code:
// Illegal code - because otherwise life would be Bad
List<Dog> dogs = new ArrayList<Dog>(); // ArrayList implements List
List<Animal> animals = dogs; // Awooga awooga
animals.add(new Cat());
Dog dog = dogs.get(0); // This should be safe, right?
At the deepest level, the problem here is that dogs
and animals
share a reference. That means that one way to make this work would be to copy the entire list, which would break reference equality:
// This code is fine
List<Dog> dogs = new ArrayList<Dog>();
dogs.add(new Dog());
List<Animal> animals = new ArrayList<>(dogs); // Copy list
animals.add(new Cat());
Dog dog = dogs.get(0); // This is fine now, because it does not return the Cat
After calling List<Animal> animals = new ArrayList<>(dogs);
, you cannot subsequently directly assign animals
to either dogs
or cats
:
// These are both illegal
dogs = animals;
cats = animals;
therefore you can't put the wrong subtype of Animal
into the list, because there is no wrong subtype -- any object of subtype ? extends Animal
can be added to animals
.
Obviously, this changes the semantics, since the lists animals
and dogs
are no longer shared, so adding to one list does not add to the other (which is exactly what you want, to avoid the problem that a Cat
could be added to a list that is only supposed to contain Dog
objects). Also, copying the entire list can be inefficient. However, this does solve the type equivalence problem, by breaking reference equality.
i would recommend using this:
background-repeat:no-repeat;
background-image: url(your file location here);
background-size:cover;(will only work with css3)
hope it helps :D
And if this doesnt support your needs just say it: i can make a jquery for multibrowser support.
Move Mouse Randomly On Screen
It will move the mouse randomly on screen according to your screen resolution. check code below.
Install pip install pyautogui
using this command.
import pyautogui
import time
import random as rnd
#calculate height and width of screen
w, h = list(pyautogui.size())[0], list(pyautogui.size())[1]
while True:
time.sleep(1)
#move mouse at random location in screen, change it to your preference
pyautogui.moveTo(rnd.randrange(0, w),
rnd.randrange(0, h))#, duration = 0.1)
I would go with Swing. For layout I would use JGoodies form layout. Its worth studying the white paper on the Form Layout here - http://www.jgoodies.com/freeware/forms/
Also if you are going to start developing a huge desktop application, you will definitely need a framework. Others have pointed out the netbeans framework. I didnt like it much so wrote a new one that we now use in my company. I have put it onto sourceforge, but didnt find the time to document it much. Here's the link to browse the code:
http://swingobj.svn.sourceforge.net/viewvc/swingobj/
The showcase should show you how to do a simple logon actually..
Let me know if you have any questions on it I could help.
Use the escape
function of querystring
. It generates a URL safe string.
var escaped_str = require('querystring').escape('Photo on 30-11-12 at 8.09 AM #2.jpg');
console.log(escaped_str);
// prints 'Photo%20on%2030-11-12%20at%208.09%20AM%20%232.jpg'
You can set the output of System.out programmatically by doing:
System.setOut(new PrintStream(new BufferedOutputStream(new FileOutputStream("/location/to/console.out")), true));
Edit:
Due to the fact that this solution is based on a PrintStream
, we can enable autoFlush, but according to the docs:
autoFlush - A boolean; if true, the output buffer will be flushed whenever a byte array is written, one of the println methods is invoked, or a newline character or byte ('\n') is written
So if a new line isn't written, remember to System.out.flush()
manually.
(Thanks Robert Tupelo-Schneck)
It's an old question, however might be useful for someone like me.
lodash
has _.inRange()
function https://lodash.com/docs/4.17.4#inRange
Example:
_.inRange(3, 2, 4);
// => true
Please note that this method utilizes the Lodash
utility library, and requires access to an installed version of Lodash.
One way I like to use is:
select ,COUNT()as VAR1 from Table_Name
group by
order by VAR1 desc
limit 1
To indicate to the browser that the file should be viewed in the browser, the HTTP response should include these headers:
Content-Type: application/pdf
Content-Disposition: inline; filename="filename.pdf"
To have the file downloaded rather than viewed:
Content-Type: application/pdf
Content-Disposition: attachment; filename="filename.pdf"
The quotes around the filename are required if the filename contains special characters such as filename[1].pdf
which may otherwise break the browser's ability to handle the response.
How you set the HTTP response headers will depend on your HTTP server (or, if you are generating the PDF response from server-side code: your server-side programming language).
CTRL+F5 Reloads the current page, ignoring cached content and generating the expected result.
What you probably need to do is redirect the user after the POST / Form Handler script has been ran.
In PHP this is done like so...
<?php
// ... Handle $_POST data, maybe insert it into a database.
// Ok, $_POST data has been handled, redirect the user
header('Location:success.php');
die();
?>
... this should allow you to refresh the page without getting that "Send Data Again" warning.
You can even redirect to the same page (if that's what you're posting to) as the POST variables will not be sent in the headers (and thus not be there to re-POST on refresh)
As long as checker
is not null
, you may use !checker
as posted. This is possible since Java 5, because this Boolean
variable will be autoboxed to the primivite boolean
value.
index.html
<!doctype html>
<html>
<head>
<title>Socket.IO chat</title>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font: 13px Helvetica, Arial; }
form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; }
form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; }
form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; }
#messages { list-style-type: none; margin: 0; padding: 0; }
#messages li { padding: 5px 10px; }
#messages li:nth-child(odd) { background: #eee; }
#messages { margin-bottom: 40px }
</style>
</head>
<body>
<ul id="messages"></ul>
<form action="">
<input id="m" autocomplete="off" /><button>Send</button>
</form>
<script src="https://cdn.socket.io/socket.io-1.2.0.js"></script>
<script src="https://code.jquery.com/jquery-1.11.1.js"></script>
<script>
$(function () {
var socket = io();
$('form').submit(function(){
socket.emit('chat message', $('#m').val());
$('#m').val('');
return false;
});
socket.on('chat message', function(msg){
$('#messages').append($('<li>').text(msg));
window.scrollTo(0, document.body.scrollHeight);
});
});
</script>
</body>
</html>
index.js
var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var port = process.env.PORT || 3000;
app.get('/', function(req, res){
res.sendFile(__dirname + '/index.html');
});
io.on('connection', function(socket){
socket.on('chat message', function(msg){
io.emit('chat message', msg);
});
});
http.listen(port, function(){
console.log('listening on *:' + port);
});
And run these commands for run the application.
npm init; // accept defaults
npm install socket.io http --save ;
node start
and open the URL:- http://127.0.0.1:3000/
Port may be different.
and you will see this OUTPUT
On honeycomb use hardwareaccelerated=true
and pluginstate.on_demand
seems to work
It's better to do this through Android Studio rather than the file browser as it updates all icon files with the correct resolution for each.
To do so go to menu File ? New ? Image Asset. This will open a new dialogue and then make sure Launcher Icons is selected (Which it is by default) and then browse to the directory of your icon (it doesn't have to be in the project resources) and then once selected make sure other settings are to your liking and hit done.
Now all resolutions are saved into their respective folders, and you don't have to worry about copying it yourself or using tools, etc.
Don't forget "Shape - none" for a transparent background.
Please don't edit my answer without asking.
jcollado's answer can be simplified using the threading.Timer class:
import shlex
from subprocess import Popen, PIPE
from threading import Timer
def run(cmd, timeout_sec):
proc = Popen(shlex.split(cmd), stdout=PIPE, stderr=PIPE)
timer = Timer(timeout_sec, proc.kill)
try:
timer.start()
stdout, stderr = proc.communicate()
finally:
timer.cancel()
# Examples: both take 1 second
run("sleep 1", 5) # process ends normally at 1 second
run("sleep 5", 1) # timeout happens at 1 second
If the list is sorted, you can use a binary search. If not, then there is no better way.
If you're doing this a lot, it would almost certainly be worth your while to sort the list the first time. Since you can't modify the classes, you would have to use a Comparator
to do the sorting and searching.
A ListView is a specialized ListBox (that is, it inherits from ListBox). It allows you to specify different views rather than a straight list. You can either roll your own view, or use GridView (think explorer-like "details view"). It's basically the multi-column listbox, the cousin of windows form's listview.
If you don't need the additional capabilities of ListView, you can certainly use ListBox if you're simply showing a list of items (Even if the template is complex).
Another more efficient way to do is just use @Value
@Value("classpath:sss.json")
private Resource resource;
and after that you can just get the file this way
File file = resource.getFile();
Intent intent=new Intent(String) is defined for parameter task, whereas you are passing parameter componentname into this, use instead:
Intent i = new Intent(Settings.this, com.scytec.datamobile.vd.gui.android.AppPreferenceActivity.class);
startActivity(i);
In this statement replace ActivityName by Name of Class of Activity, this code resides in.
You should look for the error in the file error_log in the log directory. Maybe there are differences between your local and server configuration (db user/password etc.etc.)
usually the log file is in
/var/log/apache2/error.log
or
/var/log/httpd/error.log
It depends on the database you are using. MySQL for example supports the (non-standard) group_concat function. So you could write:
SELECT GROUP_CONCAT(ModuleValue) FROM Table_X WHERE ModuleID=@ModuleID
Group-concat is not available at all database servers though.
from selenium.webdriver.support.ui import WebDriverWait
chrome_options = webdriver.ChromeOptions()
chrome_options.headless = True
self.driver = webdriver.Chrome(
executable_path=DRIVER_PATH, chrome_options=chrome_options)
TCPView is a Windows program that will show you detailed listings of all TCP and UDP endpoints on your system, including the local and remote addresses and state of TCP connections. On Windows Server 2008, Vista, NT, 2000 and XP TCPView also reports the name of the process that owns the endpoint. TCPView provides a more informative and conveniently presented subset of the Netstat program that ships with Windows. The TCPView download includes Tcpvcon, a command-line version with the same functionality.
http://technet.microsoft.com/en-us/sysinternals/bb897437.aspx
// bad
const _getKeyValue = (key: string) => (obj: object) => obj[key];
// better
const _getKeyValue_ = (key: string) => (obj: Record<string, any>) => obj[key];
// best
const getKeyValue = <T extends object, U extends keyof T>(key: U) => (obj: T) =>
obj[key];
Bad - the reason for the error is the object
type is just an empty object by default. Therefore it isn't possible to use a string
type to index {}
.
Better - the reason the error disappears is because now we are telling the compiler the obj
argument will be a collection of string/value (string/any
) pairs. However, we are using the any
type, so we can do better.
Best - T
extends empty object. U
extends the keys of T
. Therefore U
will always exist on T
, therefore it can be used as a look up value.
Here is a full example:
I have switched the order of the generics (U extends keyof T
now comes before T extends object
) to highlight that order of generics is not important and you should select an order that makes the most sense for your function.
const getKeyValue = <U extends keyof T, T extends object>(key: U) => (obj: T) =>
obj[key];
interface User {
name: string;
age: number;
}
const user: User = {
name: "John Smith",
age: 20
};
const getUserName = getKeyValue<keyof User, User>("name")(user);
// => 'John Smith'
const getKeyValue = <T, K extends keyof T>(obj: T, key: K): T[K] => obj[key];
I'm outdated I know.. But a little workaround would be to put your checkbox inside a label tag, then style the label with a border:
<label class='hasborder'><input type='checkbox' /></label>
then style the label:
.hasborder { border:1px solid #F00; }
Adding to what was already said.
if you want to *ngFor
an element , and hide \ show elements in it, on hover, like you added in the comments, you should re-think the whole concept.
a more appropriate way to do it, does not involve angular at all.
I would go with pure CSS instead, using its native :hover
property.
something like:
App.Component.css
div span.only-show-on-hover {
visibility: hidden;
}
div:hover span.only-show-on-hover {
visibility: visible;
}
App.Component.html
<div *ngFor="let i of [1,2,3,4]" > hover me please.
<span class="only-show-on-hover">you only see me when hovering</span>
</div>
added a demo: https://stackblitz.com/edit/hello-angular-6-hvgx7n?file=src%2Fapp%2Fapp.component.html
Works Like a Charm
final DatabaseReference senderDb = FirebaseDatabase.getInstance().getReference(Constant.NODE_MESSAGE).child(myId + "_" + otherId);
senderDb.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
Map<String, Object> td = (HashMap<String,Object>) dataSnapshot.getValue();
for (DataSnapshot childDataSnapshot : dataSnapshot.getChildren()) {
DatabaseReference objRef = senderDb.child( childDataSnapshot.getKey());
Map<String,Object> taskMap = new HashMap<String,Object>();
taskMap.put("is_read", "1");
objRef.updateChildren(taskMap); //should I use setValue()...?
Log.v("Testing",""+ childDataSnapshot.getKey()); //displays the key for the node
}
//notifyDataSetChanged();
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
Note The accepted is perfectly fine - but wanted to add a version4 example because they are different enough.
import React from 'react';
import { Link } from 'react-router';
export default class Nav extends React.Component {
render() {
return (
<nav className="Nav">
<div className="Nav__container">
<Link to="/" className="Nav__brand">
<img src="logo.svg" className="Nav__logo" />
</Link>
<div className="Nav__right">
<ul className="Nav__item-wrapper">
<li className="Nav__item">
<Link className="Nav__link" to="/path1">Link 1</Link>
</li>
<li className="Nav__item">
<Link className="Nav__link" to="/path2">Link 2</Link>
</li>
<li className="Nav__item">
<Link className="Nav__link" to="/path3">Link 3</Link>
</li>
</ul>
</div>
</div>
</nav>
);
}
}
import React from 'react';
import { Link, Switch, Route } from 'react-router';
import Nav from './nav';
import Page1 from './page1';
import Page2 from './page2';
import Page3 from './page3';
export default class App extends React.Component {
render() {
return (
<div className="App">
<Router>
<div>
<Nav />
<Switch>
<Route exactly component={Landing} pattern="/" />
<Route exactly component={Page1} pattern="/path1" />
<Route exactly component={Page2} pattern="/path2" />
<Route exactly component={Page3} pattern="/path3" />
<Route component={Page404} />
</Switch>
</div>
</Router>
</div>
);
}
}
Alternatively, if you want a more dynamic nav, you can look at the excellent v4 docs: https://reacttraining.com/react-router/web/example/sidebar
A few people have asked about a page without the Nav, such as a login page. I typically approach it with a wrapper Route component
import React from 'react';
import { Link, Switch, Route } from 'react-router';
import Nav from './nav';
import Page1 from './page1';
import Page2 from './page2';
import Page3 from './page3';
const NavRoute = ({exact, path, component: Component}) => (
<Route exact={exact} path={path} render={(props) => (
<div>
<Header/>
<Component {...props}/>
</div>
)}/>
)
export default class App extends React.Component {
render() {
return (
<div className="App">
<Router>
<Switch>
<NavRoute exactly component={Landing} pattern="/" />
<Route exactly component={Login} pattern="/login" />
<NavRoute exactly component={Page1} pattern="/path1" />
<NavRoute exactly component={Page2} pattern="/path2" />
<NavRoute component={Page404} />
</Switch>
</Router>
</div>
);
}
}
You dont need to use a regex for this, PHP has an inbuilt function ctype_alnum
which will do this for you, and execute faster:
<?php
$strings = array('AbCd1zyZ9', 'foo!#$bar');
foreach ($strings as $testcase) {
if (ctype_alnum($testcase)) {
echo "The string $testcase consists of all letters or digits.\n";
} else {
echo "The string $testcase does not consist of all letters or digits.\n";
}
}
?>
If you desperately want to use a regex, you have a few options.
Firstly:
preg_match('/^[\w]+$/', $string);
\w
includes more than alphanumeric (it includes underscore), but includes all
of \d
.
Alternatively:
/^[a-zA-Z\d]+$/
Or even just:
/^[^\W_]+$/
tip 1: clean & then rebuild.
tip 2: just close VS and open again.
tip 3: the downloaded project may be inside another sub folder... open the folder which has you .net files.
c:/demo1/demo/ (all files)
You should have to open demo from vs... not demo1.
I've found more elegant solution here. Adapted to the question it may look like:
$neededObject = array_filter(
$arrayOfObjects,
function ($e) use ($searchedValue) {
return $e->id == $searchedValue;
}
);
The answer from Daniel works just perfect. Here is a sample snippet that I added to my build.xml:
<target name="compile">
<mkdir dir="${classes.dir}"/>
<javac srcdir="${src.dir}" destdir="${classes.dir}" includeantruntime="false">
<!-- ^^^^^^^^^^^^^^^^^^^^^^^^^ -->
<classpath>
<path id="application" location="${jar.dir}/${ant.project.name}.jar"/>
<path id="junit" location="${lib.dir}/junit-4.9b2.jar"/>
</classpath>
</javac>
</target>
As Dillon Kearns suggested, setting focusable to false works fine. But if your goal is to cancel the keyboard when EditText is clicked, you might want to use:
mEditText.setInputType(0);
Please take a look here:
1) You can use this with Windows (incl. MinGW) as well as Linux. Alternative you can only use the code as an example.
2) Step-by-step tutorial how to use serial ports on windows
3) You can use this literally on MinGW
Here's some very, very simple code (without any error handling or settings):
#include <windows.h>
/* ... */
// Open serial port
HANDLE serialHandle;
serialHandle = CreateFile("\\\\.\\COM1", GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
// Do some basic settings
DCB serialParams = { 0 };
serialParams.DCBlength = sizeof(serialParams);
GetCommState(serialHandle, &serialParams);
serialParams.BaudRate = baudrate;
serialParams.ByteSize = byteSize;
serialParams.StopBits = stopBits;
serialParams.Parity = parity;
SetCommState(serialHandle, &serialParams);
// Set timeouts
COMMTIMEOUTS timeout = { 0 };
timeout.ReadIntervalTimeout = 50;
timeout.ReadTotalTimeoutConstant = 50;
timeout.ReadTotalTimeoutMultiplier = 50;
timeout.WriteTotalTimeoutConstant = 50;
timeout.WriteTotalTimeoutMultiplier = 10;
SetCommTimeouts(serialHandle, &timeout);
Now you can use WriteFile()
/ ReadFile()
to write / read bytes.
Don't forget to close your connection:
CloseHandle(serialHandle);
My solution was to avoid using NOW()
when writing sql with your programming language, and substitute with a string. The problem with NOW()
as you indicate is it includes current time. So to capture from the beginning of the query day (0 hour and minute) instead of:
r.date <= DATE_SUB(NOW(), INTERVAL 99 DAY)
I did (php):
$current_sql_date = date('Y-m-d 00:00:00');
in the sql:
$sql_x = "r.date <= DATE_SUB('$current_sql_date', INTERVAL 99 DAY)"
With that, you will be retrieving data from midnight of the given day
Try this code using the hostip.info service:
$country=file_get_contents('http://api.hostip.info/get_html.php?ip=');
echo $country;
// Reformat the data returned (Keep only country and country abbr.)
$only_country=explode (" ", $country);
echo "Country : ".$only_country[1]." ".substr($only_country[2],0,4);
In a single database - yes:
USE your_database
SELECT name FROM sys.tables
Getting all tables across all databases - only with a hack.... see this SO question for several approaches how to do that: How do I list all tables in all databases in SQL Server in a single result set?
Your first idea used to be the way but I've also noticed issues doing this using Firefox, try a straight http:// to the file - href='http://server/directory/file.xlsx'
I resolved with the code below:
set escape on
and put a \ beside & in the left 'value_\&_intert'
Att
This error might be caused by the jQuery event-aliases like .load()
, .unload()
or .error()
that all are deprecated since jQuery 1.8. Lookup for these aliases in your code and replace them with the .on()
method instead. For example, replace the following deprecated excerpt:
$(window).load(function(){...});
with the following:
$(window).on('load', function(){ ...});
For me just removed the OLE DB source from SSIS and added again. Worked!
I think you will have to have 2 routes. If you look at line 331 of the connect router the * in a path is replaced with .+ so will match 1 or more characters.
https://github.com/senchalabs/connect/blob/master/lib/middleware/router.js
If you have 2 routes that perform the same action you can do the following to keep it DRY.
var express = require("express"),
app = express.createServer();
function fooRoute(req, res, next) {
res.end("Foo Route\n");
}
app.get("/foo*", fooRoute);
app.get("/foo", fooRoute);
app.listen(3000);
Set a cookie value on the page, and then read it back server side.
You won't be able to set a specific header, but the value will be accessible in the headers section and not the content body.
Swift4 Code
Try this some new extension methods:
import UIKit
extension UIView {
fileprivate struct AssociatedObjectKeys {
static var tapGestureRecognizer = "MediaViewerAssociatedObjectKey_mediaViewer"
}
fileprivate typealias Action = (() -> Void)?
fileprivate var tapGestureRecognizerAction: Action? {
set {
if let newValue = newValue {
// Computed properties get stored as associated objects
objc_setAssociatedObject(self, &AssociatedObjectKeys.tapGestureRecognizer, newValue, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN)
}
}
get {
let tapGestureRecognizerActionInstance = objc_getAssociatedObject(self, &AssociatedObjectKeys.tapGestureRecognizer) as? Action
return tapGestureRecognizerActionInstance
}
}
public func addTapGestureRecognizer(action: (() -> Void)?) {
self.isUserInteractionEnabled = true
self.tapGestureRecognizerAction = action
let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(handleTapGesture))
self.addGestureRecognizer(tapGestureRecognizer)
}
@objc fileprivate func handleTapGesture(sender: UITapGestureRecognizer) {
if let action = self.tapGestureRecognizerAction {
action?()
} else {
print("no action")
}
}
}
Now whenever we want to add a UITapGestureRecognizer
to a UIView
or UIView
subclass like UIImageView
, we can do so without creating associated functions for selectors!
Usage:
profile_ImageView.addTapGestureRecognizer {
print("image tapped")
}
According with the HTTP/1.1 standard, the shared IP hosted site can be accessed by a GET request with the IP as URL and a header of the host.
Here there are two examples(wget and curl):
$ wget --header 'Host:somerandomservice.com' http://67.225.235.59
$ curl --header 'Host:somerandomservice.com' http://67.225.235.59
Resources:
https://en.wikipedia.org/wiki/Shared_web_hosting_service
http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.23
Dim a As Range, b As Range
Set a = Selection
For Each b In a.Rows
MsgBox b.Address
Next
After installing Anaconda3 on your system you need to add Anaconda to the PATH environment variable. This will allow you to access Anaconda with the 'conda' command from cmd.exe or PowerShell.
The link I provided below go through the three major issues with not recognized error. Which are:
My issue was resolved following the steps for issue #2 Environment PATH is incorrectly added. I did not have all three file paths in my variable environment.
You can appendChild
to document.body
but not if the document hasn't been loaded. So you should
put everything in:
window.onload=function(){
//your code
}
This works or you can make appendChild
to be dependent on something else like another event for eg.
https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_doc_body_append
As a matter of fact you can try changing the innerHTML
of the document.body
it works...!
Why not do it XAML?
<ComboBox x:Name="myComboBoxMenu" PlaceholderText="Hello"/>
You dont need one, you can just use:
if not number == 0:
sig = number/abs(number)
else:
sig = 0
Or create a function as described by others:
sign = lambda x: bool(x > 0) - bool(x < 0)
def sign(x):
return bool(x > 0) - bool(x < 0)
In HTML the style tag has the following syntax:
style="property1:value1;property2:value2"
so in your case:
<h2 style="text-align:center;font-family:tahoma">TITLE</h2>
Hope this helps.
A better alternative to MinGW is bash for powershell. You can install bash for Windows 10 using the steps given here
After you've installed bash, all you've got to do is run the bash command on your terminal.
PS F:\cpp> bash
user@HP:/mnt/f/cpp$ g++ program.cpp -o program
user@HP:/mnt/f/cpp$ ./program
I had to allow ..\python27\python.exe in windows firewall. I don't need to do this on WinXP or Win8.
value_counts work only for series. It won't work for entire DataFrame. Try selecting only one column and using this attribute. For example:
df['accepted'].value_counts()
It also won't work if you have duplicate columns. This is because when you select a particular column, it will also represent the duplicate column and will return dataframe instead of series. At that time remove duplicate column by using
df = df.loc[:,~df.columns.duplicated()]
df['accepted'].value_counts()
Putting it inside the namespaces makes the declarations local to that namespace for the file (in case you have multiple namespaces in the file) but if you only have one namespace per file then it doesn't make much of a difference whether they go outside or inside the namespace.
using ThisNamespace.IsImported.InAllNamespaces.Here;
namespace Namespace1
{
using ThisNamespace.IsImported.InNamespace1.AndNamespace2;
namespace Namespace2
{
using ThisNamespace.IsImported.InJustNamespace2;
}
}
namespace Namespace3
{
using ThisNamespace.IsImported.InJustNamespace3;
}
Sounds like you're entering the commands in command mode (aka. "Ex mode"). In that context :5d
would remove line number 5, nothing else. For 5dd
to work as intended -- that is, remove five consequent lines starting at the cursor -- enter it in normal mode and don't prefix the commands with :
.
I don't understand why other answers are about relative coordinates change, not absolute like OP asked in title.
$("#Friends").animate( {top:
"-=" + (parseInt($("#Friends").css("top")) - 100) + "px"
} );
This doesn't "move" them in the technical sense but it has the same effect:
A--B--C (branch-foo)
\ ^-- I wanted them here!
\
D--E--F--G (branch-bar)
^--^--^-- Opps wrong branch!
While on branch-bar:
$ git reset --hard D # remember the SHAs for E, F, G (or E and G for a range)
A--B--C (branch-foo)
\
\
D-(E--F--G) detached
^-- (branch-bar)
Switch to branch-foo
$ git cherry-pick E..G
A--B--C--E'--F'--G' (branch-foo)
\ E--F--G detached (This can be ignored)
\ /
D--H--I (branch-bar)
Now you won't need to worry about the detached branch because it is basically
like they are in the trash can waiting for the day it gets garbage collected.
Eventually some time in the far future it will look like:
A--B--C--E'--F'--G'--L--M--N--... (branch-foo)
\
\
D--H--I--J--K--.... (branch-bar)
There's no need for bind(this)
when you are using arrow functions:
setTimeout( ()=> {
// some code
}, 500)
Similar to the answer by @russian_spy :
<ul>
{% for choice in choices.items %}
<li>{{choice.0}} - {{choice.1}}</li>
{% endfor %}
</ul>
This might be suitable for breaking down more complex dictionaries.
This is my opinion.
You can try Wolfram Alpha as in this example based on your input:
import re
re.sub('<.*?>', '', string)
"i think mabe 124 + but I don't have a big experience it just how I see it in my eyes fun stuff"
The re.sub
function takes a regular expresion and replace all the matches in the string with the second parameter. In this case, we are searching for all tags ('<.*?>'
) and replacing them with nothing (''
).
The ?
is used in re
for non-greedy searches.
More about the re module
.
I posted an answer to this already when someone else asked the same question (see How to bring back "Browser mode" in IE11?).
Read my answer there for a fuller explaination, but in short:
They removed it deliberately, because compat mode is not actually really very good for testing compatibility.
If you really want to test for compatibility with any given version of IE, you need to test in a real copy of that IE version. MS provide free VMs on http://modern.ie/ for you to use for this purpose.
The only way to get compat mode in IE11 is to set the X-UA-Compatible
header. When you have this and the site defaults to compat mode, you will be able to set the mode in dev tools, but only between edge or the specified compat mode; other modes will still not be available.
Since this page is the number 1 result for the google search "c++ floating point exception", I want to add another thing that can cause such a problem: use of undefined variables.
I Found that applying ionic framework (ionic.min.cs) after bootstrap coursing this issue for me.
Django has a 'slugify' function which does this, as well as other URL-friendly optimisations. It's hidden away in the defaultfilters module.
>>> from django.template.defaultfilters import slugify
>>> slugify("This should be connected")
this-should-be-connected
This isn't exactly the output you asked for, but IMO it's better for use in URLs.
I render context path to attribute of link tag with id="contextPahtHolder" and then obtain it in JS code. For example:
<html>
<head>
<link id="contextPathHolder" data-contextPath="${pageContext.request.contextPath}"/>
<body>
<script src="main.js" type="text/javascript"></script>
</body>
</html>
main.js
var CONTEXT_PATH = $('#contextPathHolder').attr('data-contextPath');
$.get(CONTEXT_PATH + '/action_url', function() {});
If context path is empty (like in embedded servlet container istance), it will be empty string. Otherwise it contains contextPath string
try this....
USE DATABASE
GO
DECLARE @tname VARCHAR(150)
DECLARE @strsql VARCHAR(300)
SELECT @tname = (SELECT TOP 1 [name] FROM sys.objects WHERE [type] = 'U' and [name] like N'TableName%' ORDER BY [name])
WHILE @tname IS NOT NULL
BEGIN
SELECT @strsql = 'DROP TABLE [dbo].[' + RTRIM(@tname) +']'
EXEC (@strsql)
PRINT 'Dropped Table : ' + @tname
SELECT @tname = (SELECT TOP 1 [name] FROM sys.objects WHERE [type] = 'U' AND [name] like N'TableName%' AND [name] > @tname ORDER BY [name])
END
No, I don't know one.
If you want to retain the original directory for some reason (ACLs, &c.), and instead really want to empty it, then you can do the following:
del /q destination\*
for /d %x in (destination\*) do @rd /s /q "%x"
This first removes all files from the directory, and then recursively removes all nested directories, but overall keeping the top-level directory as it is (except for its contents).
Note that within a batch file you need to double the %
within the for
loop:
del /q destination\*
for /d %%x in (destination\*) do @rd /s /q "%%x"
I'm going to test adding the no-store tag to our site to see if this makes a difference to browser caching (Chrome has sometimes been caching the pages). I also found this article very useful on documentation on how and why caching works and will look at ETag's next if the no-store is not reliable:
I can't believe none of the answers pointed to the function dirname()
(available since PHP 4).
Basically, it returns the full path for the referenced object. If you use a file as a reference, the function returns the full path of the file. If the referenced object is a folder, the function will return the parent folder of that folder.
https://www.php.net/manual/en/function.dirname.php
For the current folder of the current file, use $current = dirname(__FILE__);
.
For a parent folder of the current folder, simply use $parent = dirname(__DIR__);
.
I needed to do the same thing, so have written some JavaScript to enable this, using the onSelect
and beforeShowDay
events. It maintains its own array of selected dates, so unfortunately doesn't integrate with a textbox showing the current date, etc. I'm just using it as an inline control, and I can then query the array for the currently selected dates.
I used this code as a basis.
<script type="text/javascript">
// Maintain array of dates
var dates = new Array();
function addDate(date) {
if (jQuery.inArray(date, dates) < 0)
dates.push(date);
}
function removeDate(index) {
dates.splice(index, 1);
}
// Adds a date if we don't have it yet, else remove it
function addOrRemoveDate(date) {
var index = jQuery.inArray(date, dates);
if (index >= 0)
removeDate(index);
else
addDate(date);
}
// Takes a 1-digit number and inserts a zero before it
function padNumber(number) {
var ret = new String(number);
if (ret.length == 1)
ret = "0" + ret;
return ret;
}
jQuery(function () {
jQuery("#datepicker").datepicker({
onSelect: function (dateText, inst) {
addOrRemoveDate(dateText);
},
beforeShowDay: function (date) {
var year = date.getFullYear();
// months and days are inserted into the array in the form, e.g "01/01/2009", but here the format is "1/1/2009"
var month = padNumber(date.getMonth() + 1);
var day = padNumber(date.getDate());
// This depends on the datepicker's date format
var dateString = month + "/" + day + "/" + year;
var gotDate = jQuery.inArray(dateString, dates);
if (gotDate >= 0) {
// Enable date so it can be deselected. Set style to be highlighted
return [true, "ui-state-highlight"];
}
// Dates not in the array are left enabled, but with no extra style
return [true, ""];
}
});
});
</script>
You don't have to use CASE...WHEN, you could use an OR condition, like this:
WHERE
pw='correct'
AND (id>=800 OR success=1)
AND YEAR(timestamp)=2011
this means that if id<800, success has to be 1 for the condition to be evaluated as true. Otherwise, it will be true anyway.
It is less common, however you could still use CASE WHEN, like this:
WHERE
pw='correct'
AND CASE WHEN id<800 THEN success=1 ELSE TRUE END
AND YEAR(timestamp)=2011
this means: return success=1
(which can be TRUE or FALSE) in case id<800, or always return TRUE otherwise.
split your date into parts, then return a new Date with the adjusted values
function DateAdd(date, type, amount){
var y = date.getFullYear(),
m = date.getMonth(),
d = date.getDate();
if(type === 'y'){
y += amount;
};
if(type === 'm'){
m += amount;
};
if(type === 'd'){
d += amount;
};
return new Date(y, m, d);
}
Remember that the months are zero based, but the days are not. ie new Date(2009, 1, 1) == 01 February 2009, new Date(2009, 1, 0) == 31 January 2009;
You can use the class org.apache.commons.lang.StringEscapeUtils:
String s = StringEscapeUtils.unescapeHtml("Happy & Sad")
It is working.
Enum value names must follow the same naming rules as all identifiers in C#, therefore only first name is correct.
Working with a dictionary ->level2 above comes from a dictionary in my case (just in case anybody will find it useful) Trying the first example I stumbled over this error: "This document already has a 'DocumentElement' node." I was inspired by the answer here
and edited my code: (xmlDoc.DocumentElement.AppendChild(body))
//a dictionary:
Dictionary<string, string> Level2Data
{
{"level2", "text"},
{"level2", "other text"},
{"same_level2", "more text"}
}
//xml Decalration:
XmlDocument xmlDoc = new XmlDocument();
XmlDeclaration xmlDeclaration = xmlDoc.CreateXmlDeclaration("1.0", "UTF-8", null);
XmlElement root = xmlDoc.DocumentElement;
xmlDoc.InsertBefore(xmlDeclaration, root);
// add body
XmlElement body = xmlDoc.CreateElement(string.Empty, "body", string.Empty);
xmlDoc.AppendChild(body);
XmlElement body = xmlDoc.CreateElement(string.Empty, "body", string.Empty);
xmlDoc.DocumentElement.AppendChild(body); //without DocumentElement ->ERR
foreach (KeyValuePair<string, string> entry in Level2Data)
{
//write to xml: - it works version 1.
XmlNode keyNode = xmlDoc.CreateElement(entry.Key); //open TAB
keyNode.InnerText = entry.Value;
body.AppendChild(keyNode); //close TAB
//Write to xmml verdion 2: (uncomment the next 4 lines and comment the above 3 - version 1
//XmlElement key = xmlDoc.CreateElement(string.Empty, entry.Key, string.Empty);
//XmlText value = xmlDoc.CreateTextNode(entry.Value);
//key.AppendChild(value);
//body.AppendChild(key);
}
Both versions (1 and 2 inside foreach loop) give the output:
<?xml version="1.0" encoding="UTF-8"?>
<body>
<level1>
<level2>text</level2>
<level2>ther text</level2>
<same_level2>more text</same_level2>
</level1>
</body>
(Note: third line "same level2" in dictionary can be also level2 as the others but I wanted to ilustrate the advantage of the dictionary - in my case I needed level2 with different names.
Actually none of these answers worked for me. I solved it by doing like this:
if ((expireDate.Date - DateTime.Now).Days > -30)
{
matchFound = true;
}
When i tried doing this:
matchFound = (expiryDate - DateTime.Now).Days < 30;
Today, 2011-11-14 and my expiryDate was 2011-10-17 i got that matchFound = -28. Instead of 28. So i inversed the last check.
Solution with JSON aggregation:
CREATE TEMP TABLE t (
section text
, status text
, ct integer -- don't use "count" as column name.
);
INSERT INTO t VALUES
('A', 'Active', 1), ('A', 'Inactive', 2)
, ('B', 'Active', 4), ('B', 'Inactive', 5)
, ('C', 'Inactive', 7);
SELECT section,
(obj ->> 'Active')::int AS active,
(obj ->> 'Inactive')::int AS inactive
FROM (SELECT section, json_object_agg(status,ct) AS obj
FROM t
GROUP BY section
)X
If the InputStream
you're using supports mark/reset support, you could also attempt to read the first byte of the stream and then reset it to its original position:
input.mark(1);
final int bytesRead = input.read(new byte[1]);
input.reset();
if (bytesRead != -1) {
//stream not empty
} else {
//stream empty
}
If you don't control what kind of InputStream
you're using, you can use the markSupported()
method to check whether mark/reset will work on the stream, and fall back to the available()
method or the java.io.PushbackInputStream
method otherwise.
Without building temporary lists:
>>> import itertools
>>> s = 'abcdefgh'
>>> si = iter(s)
>>> [''.join(each) for each in itertools.izip(si, si)]
['ab', 'cd', 'ef', 'gh']
or:
>>> import itertools
>>> s = 'abcdefgh'
>>> si = iter(s)
>>> map(''.join, itertools.izip(si, si))
['ab', 'cd', 'ef', 'gh']
import differenceBy from 'lodash/differenceBy'
const myDifferences = differenceBy(Result1, Result2, 'value')
This will return the difference between two arrays of objects, using the key value
to compare them. Note two things with the same value will not be returned, as the other keys are ignored.
This is a part of lodash.
I ran into the same problem as you. I wanted to make a DIV
as background, why, because its easy to manipulate div through javascript. Anyways three things I did in the css for that div.
CSS:
{
position:absolute;
display:block;
height:100%;
width:100%;
top:0px;
left:0px;
z-index:-1;
}
I added both declarations on the a href which worked in outlook and gmail apps. outlook ignores the !important and gmail needs it. Web versions of email work with both/either.
text-decoration: none !important; text-decoration: none;
The DateTime constructor takes a parameter string time
. $time
can be different things, it has to respect the datetime format.
There are some valid values as examples :
'now'
(the default value)2017-10-19
2017-10-19 11:59:59
2017-10-19 +1day
So, in your case you can use the following.
$dt = new \DateTime('now +1 day'); //Tomorrow
$dt = new \DateTime('2016-01-01 +1 day'); //2016-01-02
Looking at your example, I think this is what you want:
var dict = TableObj.ToDictionary(t => t.Key, t=> t.TimeStamp);
Your value:
this.element = $(id);
is a jQuery object, not a pure Canvas element.
To turn it back so you can call getContext()
, call this.element.get(0)
, or better yet store the real element and not the jQuery object:
function canvasLayer(location, id) {
this.width = $(window).width();
this.height = $(window).height();
this.element = document.createElement('canvas');
$(this.element)
.attr('id', id)
.text('unsupported browser')
.attr('width', this.width) // for pixels
.attr('height', this.height)
.width(this.width) // for CSS scaling
.height(this.height)
.appendTo(location);
this.context = this.element.getContext("2d");
}
See running code at http://jsfiddle.net/alnitak/zbaMh/, ideally using the Chrome Javascript Console so you can see the resulting object in the debug output.
If using win7 64 bit OS:
After installing the latest JDK make sure you copy the jre folder from the install location {C:\Program Files\Java\jdk1.7.0_40
} directly to your eclipse folder as even pathing it apparently does nothing on win7.
Mad
edit:
Actual jdk version number on folder name will vary as newer versions are released
One way to do this, first one an array, 2nd an object:
<select name="">
<option value='{"num_sequence":[0,1,2,3]}'>Option one</option>
<option value='{"foo":"bar","one":"two"}'>Option two</option>
</select>
Edited (3 years after answering) to put both values into JSON format (using JSON.stringify()
) because of a complaint that my proof-of-concept answer "could confuse a newbie developer."
Replication is not very hard to create.
Here's some good tutorials:
http://www.ghacks.net/2009/04/09/set-up-mysql-database-replication/
http://dev.mysql.com/doc/refman/5.5/en/replication-howto.html
http://www.lassosoft.com/Beginners-Guide-to-MySQL-Replication
Here some simple rules you will have to keep in mind (there's more of course but that is the main concept):
This way, you will avoid errors.
For example: If your script insert into the same tables on both master and slave, you will have duplicate primary key conflict.
You can view the "slave" as a "backup" server which hold the same information as the master but cannot add data directly, only follow what the master server instructions.
NOTE: Of course you can read from the master and you can write to the slave but make sure you don't write to the same tables (master to slave and slave to master).
I would recommend to monitor your servers to make sure everything is fine.
Let me know if you need additional help
@adobrzyc had this great custom LIKE
function - I just wanted to share the IEnumerable
version of it.
public static class LinqEx
{
private static readonly MethodInfo ContainsMethod = typeof(string).GetMethod("Contains");
private static readonly MethodInfo StartsWithMethod = typeof(string).GetMethod("StartsWith", new[] { typeof(string) });
private static readonly MethodInfo EndsWithMethod = typeof(string).GetMethod("EndsWith", new[] { typeof(string) });
private static Func<TSource, bool> LikeExpression<TSource, TMember>(Expression<Func<TSource, TMember>> property, string value)
{
var param = Expression.Parameter(typeof(TSource), "t");
var propertyInfo = GetPropertyInfo(property);
var member = Expression.Property(param, propertyInfo.Name);
var startWith = value.StartsWith("%");
var endsWith = value.EndsWith("%");
if (startWith)
value = value.Remove(0, 1);
if (endsWith)
value = value.Remove(value.Length - 1, 1);
var constant = Expression.Constant(value);
Expression exp;
if (endsWith && startWith)
{
exp = Expression.Call(member, ContainsMethod, constant);
}
else if (startWith)
{
exp = Expression.Call(member, EndsWithMethod, constant);
}
else if (endsWith)
{
exp = Expression.Call(member, StartsWithMethod, constant);
}
else
{
exp = Expression.Equal(member, constant);
}
return Expression.Lambda<Func<TSource, bool>>(exp, param).Compile();
}
public static IEnumerable<TSource> Like<TSource, TMember>(this IEnumerable<TSource> source, Expression<Func<TSource, TMember>> parameter, string value)
{
return source.Where(LikeExpression(parameter, value));
}
private static PropertyInfo GetPropertyInfo(Expression expression)
{
var lambda = expression as LambdaExpression;
if (lambda == null)
throw new ArgumentNullException("expression");
MemberExpression memberExpr = null;
switch (lambda.Body.NodeType)
{
case ExpressionType.Convert:
memberExpr = ((UnaryExpression)lambda.Body).Operand as MemberExpression;
break;
case ExpressionType.MemberAccess:
memberExpr = lambda.Body as MemberExpression;
break;
}
if (memberExpr == null)
throw new InvalidOperationException("Specified expression is invalid. Unable to determine property info from expression.");
var output = memberExpr.Member as PropertyInfo;
if (output == null)
throw new InvalidOperationException("Specified expression is invalid. Unable to determine property info from expression.");
return output;
}
}
Placing @EdChum's very nice answer into a function count_unique_index
.
The unique method only works on pandas series, not on data frames.
The function below reproduces the behavior of the unique function in R:
unique returns a vector, data frame or array like x but with duplicate elements/rows removed.
And adds a count of the occurrences as requested by the OP.
df1 = pd.DataFrame({'A':['yes','yes','yes','yes','no','no','yes','yes','yes','no'],
'B':['yes','no','no','no','yes','yes','no','yes','yes','no']})
def count_unique_index(df, by):
return df.groupby(by).size().reset_index().rename(columns={0:'count'})
count_unique_index(df1, ['A','B'])
A B count
0 no no 1
1 no yes 2
2 yes no 4
3 yes yes 3
While this isn't answering your question directly, I'm putting this here as google brought this page up first in my searches when I was looking for this info.
If you're using Visual Studio, you can right click on your project -> Properties -> Build -> Advanced This should list available versions as well as the one your proj is using.
adding to the other answers, the most important thing to get this to work is to set the layout width (or height) to 0px
android:layout_width="0px"
otherwise you will see garbage
This error mostly come when you call wrong api end point. Check your api end point that you are calling and verify this on api gateway.
Do a quick 'record macro' to see the color number associated with the color you're looking for (yellow highlight is 65535). Then erase the code and put
Sub Name()
Selection.Interior.Color = 65535 '(your number may be different depending on the above)
End Sub
2017 Update - since WooCommerce 3:
global $product;
$id = $product->get_id();
Woocommerce doesn't like you accessing those variables directly. This will get rid of any warnings from woocommerce if your wp_debug is true.
To answer your question:
import urllib
link = "http://www.somesite.com/details.pl?urn=2344"
f = urllib.urlopen(link)
myfile = f.read()
print(myfile)
You need to read()
, not readline()
EDIT (2018-06-25): Since Python 3, the legacy urllib.urlopen()
was replaced by urllib.request.urlopen()
(see notes from https://docs.python.org/3/library/urllib.request.html#urllib.request.urlopen for details).
If you're using Python 3, see answers by Martin Thoma or i.n.n.m within this question: https://stackoverflow.com/a/28040508/158111 (Python 2/3 compat) https://stackoverflow.com/a/45886824/158111 (Python 3)
Or, just get this library here: http://docs.python-requests.org/en/latest/ and seriously use it :)
import requests
link = "http://www.somesite.com/details.pl?urn=2344"
f = requests.get(link)
print(f.text)
git reset
does know five "modes": soft, mixed, hard, merge and keep. I will start with the first three, since these are the modes you'll usually encounter. After that you'll find a nice little a bonus, so stay tuned.
When using git reset --soft HEAD~1
you will remove the last commit from the current branch, but the file changes will stay in your working tree. Also the changes will stay on your index, so following with a git commit
will create a commit with the exact same changes as the commit you "removed" before.
This is the default mode and quite similar to soft. When "removing" a commit with git reset HEAD~1
you will still keep the changes in your working tree but not on the index; so if you want to "redo" the commit, you will have to add the changes (git add
) before commiting.
When using git reset --hard HEAD~1
you will lose all uncommited changes in addition to the changes introduced in the last commit. The changes won't stay in your working tree so doing a git status
command will tell you that you don't have any changes in your repository.
Tread carefully with this one. If you accidentally remove uncommited changes which were never tracked by git
(speak: committed or at least added to the index), you have no way of getting them back using git
.
git reset --keep HEAD~1
is an interesting and useful one. It only resets the files which are different between the current HEAD
and the given commit. It aborts the reset if one or more of these files has uncommited changes. It basically acts as a safer version of hard
.
You can read more about that in the git reset documentation.
Note
When doing git reset
to remove a commit the commit isn't really lost, there just is no reference pointing to it or any of it's children. You can still recover a commit which was "deleted" with git reset
by finding it's SHA-1 key, for example with a command such as git reflog
.
@media queries serve this purpose. Here's an example:
@media only screen and (max-width: 991px) and (min-width: 769px){
/* CSS that should be displayed if width is equal to or less than 991px and larger
than 768px goes here */
}
@media only screen and (max-width: 991px){
/* CSS that should be displayed if width is equal to or less than 991px goes here */
}
import socket
from threading import *
serversocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host = "192.168.1.3"
port = 8000
print (host)
print (port)
serversocket.bind((host, port))
class client(Thread):
def __init__(self, socket, address):
Thread.__init__(self)
self.sock = socket
self.addr = address
self.start()
def run(self):
while 1:
print('Client sent:', self.sock.recv(1024).decode())
self.sock.send(b'Oi you sent something to me')
serversocket.listen(5)
print ('server started and listening')
while 1:
clientsocket, address = serversocket.accept()
client(clientsocket, address)
This is a very VERY simple design for how you could solve it.
First of all, you need to either accept the client (server side) before going into your while 1
loop because in every loop you accept a new client, or you do as i describe, you toss the client into a separate thread which you handle on his own from now on.
0xe0434352 is the SEH code for a CLR exception. If you don't understand what that means, stop and read A Crash Course on the Depths of Win32™ Structured Exception Handling. So your process is not handling a CLR exception. Don't shoot the messenger, KERNELBASE.DLL is just the unfortunate victim. The perpetrator is MyApp.exe.
There should be a minidump of the crash in DrWatson folders with a full stack, it will contain everything you need to root cause the issue.
I suggest you wire up, in your myapp.exe code, AppDomain.UnhandledException
and Application.ThreadException
, as appropriate.
File f = null;
File[] paths;
try {
f = new File(dir);
// filefilter
FilenameFilter fileNameFilter = new FilenameFilter() {
public boolean accept(File dir, String name) {
if (name.lastIndexOf('.') > 0) {
int lastIndex = name.lastIndexOf('.');
String str = name.substring(lastIndex);
if (str.equals("." + selectlogtype)) {
return true;
}
}
return false;
}
};
paths = f.listFiles(fileNameFilter);
for (int i = 0; i < paths.length; i++) {
try {
FileWriter fileWriter = new FileWriter("C:/Users/maya02/workspace/ftp_log/filefilterlogtxt");
PrintWriter bWriter = new PrintWriter(fileWriter);
for (File writerpath1 : paths) {
bWriter.println(writerpath1);
}
bWriter.close();
}
catch (IOException e) { System.out.println("HATA!!"); }
}
System.out.println("path dosyaya aktarildi!.");
}
catch (Exception e) { }
We had a situation where IE forced us to post as text/plain, so we had to manually parse the parameters using getReader. The servlet was being used for long polling, so when AsyncContext::dispatch was executed after a delay, it was literally reposting the request empty handed.
So I just stored the post in the request when it first appeared by using HttpServletRequest::setAttribute. The getReader method empties the buffer, where getParameter empties the buffer too but stores the parameters automagically.
String input = null;
// we have to store the string, which can only be read one time, because when the
// servlet awakens an AsyncContext, it reposts the request and returns here empty handed
if ((input = (String) request.getAttribute("com.xp.input")) == null) {
StringBuilder buffer = new StringBuilder();
BufferedReader reader = request.getReader();
String line;
while((line = reader.readLine()) != null){
buffer.append(line);
}
// reqBytes = buffer.toString().getBytes();
input = buffer.toString();
request.setAttribute("com.xp.input", input);
}
if (input == null) {
response.setContentType("text/plain");
PrintWriter out = response.getWriter();
out.print("{\"act\":\"fail\",\"msg\":\"invalid\"}");
}
header('Content-type: image/jpeg');
readfile($image);
In my case this error occured when I set up my environment adb path as ~/.android-sdk/platform-tools
(which happens when e.g. android-platform-tools is installed via homebrew), which version was 36, but Android Studio project has Android SDK next path ~/Library/Android/sdk
which adb version was 39.
I have changed my PATH to platform-tools to ~/Library/Android/sdk/platform-tools
and error was solved
In a Object Relational Mapping context, every object needs to have a unique identifier. You use the @Id
annotation to specify the primary key of an entity.
The @GeneratedValue
annotation is used to specify how the primary key should be generated. In your example you are using an Identity
strategy which
Indicates that the persistence provider must assign primary keys for the entity using a database identity column.
There are other strategies, you can see more here.
Remember that running the command
git config --global core.excludesfile '~/.gitignore'
will just set up the global file, but will NOT create it.
For Windows check your Users directory for the .gitconfig
file, and edit it to your preferences. In my case It's like that:
[core]
excludesfile = c:/Users/myuser/Dropbox/Apps/Git/.gitignore
it is always good to restrict the DOM search. so better to use a parent also, so that the entire DOM won't be traversed.
IT IS VERY FAST
<div id="radioBtnDiv">
<input name="myButton" type="radio" class="radioClass" value="manual" checked="checked"/>
<input name="myButton" type="radio" class="radioClass" value="auto" checked="checked"/>
</div>
$("input[name='myButton']",$('#radioBtnDiv')).change(
function(e)
{
// your stuffs go here
});
- My first question is about the abstract factory. Is its role to allow you to create families of concrete objects in (that can depend on what specific factory you use) rather than just a single concrete object?
Yes. The intent of Abstract Factory is:
Provide an interface for creating families of related or dependent objects without specifying their concrete classes.
- Does the abstract factory only return one very large object or many objects depending on what methods you call?
Ideally it should return one object per the method client is invoking.
- My understanding is that the factory method pattern has a Creator interface that will make the ConcreteCreator be in charge of knowing which ConcreteProduct to instantiate. Is this what it means by using inheritance to handle object instantiation?
Yes. Factory method uses inheritance.
- Abstract Factory pattern delegate the responsibility of object instantiation to another object via composition? What does this mean?
AbstractFactory defines a FactoryMethod and ConcreteFactory is responsible for building a ConcreteProduct. Just follow through the code example in this article.
You can find more details in related SE posts:
What is the basic difference between the Factory and Abstract Factory Patterns?
Design Patterns: Factory vs Factory method vs Abstract Factory
import turtle
wn = turtle.Screen()
turtle = turtle.Turtle()
def printLetter():
print("a")
turtle.listen()
turtle.onkey(printLetter, "a")
mvn clean install -U
-U
means force update of dependencies.
Also, if you want to import the project into eclipse, I first run:
mvn eclipse:eclipse
then run
mvn eclipse:clean
Seems to work for me, but that's just my pennies worth.
without imports
time = "01:34:11"
sum(x * int(t) for x, t in zip([3600, 60, 1], time.split(":")))
In my case I needed curved corners and thin border so I came up with this solution:
/* For showing dependencies between attributes */
:root {
--border-width: 1px;
--border-radius: 4px;
--bg-color: #fff;
}
/* Required: */
.dropzone {
position: relative;
border: var(--border-width) solid transparent;
border-radius: var(--border-radius);
background-clip: padding-box;
background-color: var(--bg-color);
}
.dropzone::before {
content: '';
position: absolute;
top: calc(var(--border-width) * -1); /* or without variables: 'top: -1px;' */
right: calc(var(--border-width) * -1);
bottom: calc(var(--border-width) * -1);
left: calc(var(--border-width) * -1);
z-index: -1;
background-image: repeating-linear-gradient(135deg, transparent 0 8px, var(--bg-color) 8px 16px);
border-radius: var(--border-radius);
background-color: rgba(0, 0, 0, 0.38);
}
/* Optional: */
html {
background-color: #fafafb;
display: flex;
justify-content: center;
}
.dropzone {
box-sizing: border-box;
height: 168px;
padding: 16px;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
}
.dropzone::before {
transition: background-color 0.2s ease-in-out;
}
.dropzone:hover::before {
background-color: rgba(0, 0, 0, 0.87);
}
_x000D_
<div class='dropzone'>
Drag 'n' drop some files here, or click to select files
</div>
_x000D_
The idea is to put svg pattern behind element and display only thin line of this pattern as element border.
To go from SCRATCH with SQLite DB to importing the CSV into a table:
sqlite3 <your_db_file_name>
*It will be created as an empty file.CREATE TABLE <table_Name> (<field_name1> <Type>, <field_name2> <type>);
Once you have the table created and the columns match your data from the file then you can do the above...
.mode csv <table_name>
.import <filename> <table_name>
The way I handled this was switching the className of a label based on a condition. This way you only need one label and you can have different classes for different states... Hope that helps!
Maybe you should use a display inline-block too:
.circle {
display: inline-block;
height: 25px;
width: 25px;
background-color: #bbb;
border-radius: 50%;
z-index: -1;
}
See the docs: https://getbootstrap.com/docs/4.0/utilities/display/
In order to hide the content on mobile and display on the bigger devices you have to use the following classes:
d-none d-sm-block
The first class set display none all across devices and the second one display it for devices "sm" up (you could use md, lg, etc. instead of sm if you want to show on different devices.
I suggest to read about that before migration:
https://getbootstrap.com/docs/4.0/migration/#responsive-utilities
You can enter (for example) text from div into iFrame:
var $iframe = $('#iframe');
$iframe.ready(function() {
$iframe.contents().find("body").append($('#mytext'));
});
and divs:
<iframe id="iframe"></iframe>
<div id="mytext">Hello!</div>
and JSFiddle demo: link
You can use the following command to revert all local changes:
svn st -q | awk '{print $2;}' | xargs svn revert
Well, apparently I had to change my PUT calling function updateUser
. I removed the @Consumes
, the @RequestMapping
and also added a @ResponseBody
to the function. So my method looked like this:
@RequestMapping(value="/{id}",method = RequestMethod.PUT)
@ResponseStatus(HttpStatus.OK)
@ResponseBody
public void updateUser(@PathVariable int id, @RequestBody User temp){
Set<User> set1= obj2.getUsers();
for(User a:set1)
{
if(id==a.getId())
{
set1.remove(a);
a.setId(temp.getId());
a.setName(temp.getName());
set1.add(a);
}
}
Userlist obj3=new Userlist(set1);
obj2=obj3;
}
And it worked!!! Thank you all for the response.
You can simply use DataFrame.fillna
to fill the nan
's directly:
In [27]: df
Out[27]:
A B C
0 -0.166919 0.979728 -0.632955
1 -0.297953 -0.912674 -1.365463
2 -0.120211 -0.540679 -0.680481
3 NaN -2.027325 1.533582
4 NaN NaN 0.461821
5 -0.788073 NaN NaN
6 -0.916080 -0.612343 NaN
7 -0.887858 1.033826 NaN
8 1.948430 1.025011 -2.982224
9 0.019698 -0.795876 -0.046431
In [28]: df.mean()
Out[28]:
A -0.151121
B -0.231291
C -0.530307
dtype: float64
In [29]: df.fillna(df.mean())
Out[29]:
A B C
0 -0.166919 0.979728 -0.632955
1 -0.297953 -0.912674 -1.365463
2 -0.120211 -0.540679 -0.680481
3 -0.151121 -2.027325 1.533582
4 -0.151121 -0.231291 0.461821
5 -0.788073 -0.231291 -0.530307
6 -0.916080 -0.612343 -0.530307
7 -0.887858 1.033826 -0.530307
8 1.948430 1.025011 -2.982224
9 0.019698 -0.795876 -0.046431
The docstring of fillna
says that value
should be a scalar or a dict, however, it seems to work with a Series
as well. If you want to pass a dict, you could use df.mean().to_dict()
.
All necessary git bash commands to push and pull into Github:
git status
git pull
git add filefullpath
git commit -m "comments for checkin file"
git push origin branch/master
git remote -v
git log -2
If you want to edit a file then:
edit filename.*
To see all branches and their commits:
git show-branch
session.flush() is synchronise method means to insert data in to database sequentially.if we use this method data will not store in database but it will store in cache,if any exception will rise in middle we can handle it. But commit() it will store data in database,if we are storing more amount of data then ,there may be chance to get out Of Memory Exception,As like in JDBC program in Save point topic
I had similar issue. I resolved it with just CSS.
Basically Object-fit: cover
was not working in IE and it was taking 100% width and 100% height and aspect ratio was distorted. In other words image zooming effect wasn't there which I was seeing in chrome.
The approach I took was to position the image inside the container with absolute and then place it right at the centre using the combination:
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
Once it is in the centre, I give to the image,
// For vertical blocks (i.e., where height is greater than width)
height: 100%;
width: auto;
// For Horizontal blocks (i.e., where width is greater than height)
height: auto;
width: 100%;
This makes the image get the effect of Object-fit:cover.
https://jsfiddle.net/furqan_694/s3xLe1gp/
This logic works in all browsers.
Try to check this free an open source alternative https://www.nuget.org/packages/AIM It is free to use and open source and uses the exact same way that System.Net.Mail is using To send email to implicit ssl ports you can use following code
public static void SendMail()
{
var mailMessage = new MimeMailMessage();
mailMessage.Subject = "test mail";
mailMessage.Body = "hi dude!";
mailMessage.Sender = new MimeMailAddress("[email protected]", "your name");
mailMessage.To.Add(new MimeMailAddress("[email protected]", "your friendd's name"));
// You can add CC and BCC list using the same way
mailMessage.Attachments.Add(new MimeAttachment("your file address"));
//Mail Sender (Smtp Client)
var emailer = new SmtpSocketClient();
emailer.Host = "your mail server address";
emailer.Port = 465;
emailer.SslType = SslMode.Ssl;
emailer.User = "mail sever user name";
emailer.Password = "mail sever password" ;
emailer.AuthenticationMode = AuthenticationType.Base64;
// The authentication types depends on your server, it can be plain, base 64 or none.
//if you do not need user name and password means you are using default credentials
// In this case, your authentication type is none
emailer.MailMessage = mailMessage;
emailer.OnMailSent += new SendCompletedEventHandler(OnMailSent);
emailer.SendMessageAsync();
}
// A simple call back function:
private void OnMailSent(object sender, AsyncCompletedEventArgs asynccompletedeventargs)
{
if (e.UserState!=null)
Console.Out.WriteLine(e.UserState.ToString());
if (e.Error != null)
{
MessageBox.Show(e.Error.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else if (!e.Cancelled)
{
MessageBox.Show("Send successfull!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
Here's an example: http://duncan99.wordpress.com/2011/10/08/google-maps-api-infowindows/
marker.addListener('mouseover', function() {
infowindow.open(map, this);
});
// assuming you also want to hide the infowindow when user mouses-out
marker.addListener('mouseout', function() {
infowindow.close();
});
Unfortunately using an XML drawable and overriding the background means you have to explicitly set the colour instead of being able to use the app style colours.
Rather than hardcode the button colours for every behaviour I opted to hardcode the corner radius, which feels marginally less hacky and retains all the default button behaviour (changing colour when it's pressed and other visual effects) and uses the app style colours by default:
Set android:layout_height
and android:layout_width
to the same value
Set app:cornerRadius
to half of the height/width
(It actually appears that anything greater than or equal to half of the height/width works, so to avoid having to change the radius every time you update the height/width, you could instead set it to a very high value such as 1000dp
, the risk being it could break if this behaviour ever changes.)
Set android:insetBottom
and android:insetTop
to 0dp
to get a perfect circle
For example:
<Button
android:insetBottom="0dp"
android:insetTop="0dp"
android:layout_height="150dp"
android:layout_width="150dp"
app:cornerRadius="75dp"
/>
That's a lot of questions.
Why EOF
is -1: usually -1 in POSIX system calls is returned on error, so i guess the idea is "EOF is kind of error"
any boolean operation (including !=) returns 1 in case it's TRUE, and 0 in case it's FALSE, so getchar() != EOF
is 0
when it's FALSE, meaning getchar()
returned EOF
.
in order to emulate EOF
when reading from stdin
press Ctrl+D
You can reference those remote tracking branches ~(listed with git branch -r
) with the name of their remote.
You need to fetch the remote branch:
git fetch origin aRemoteBranch
If you want to merge one of those remote branches on your local branch:
git checkout master
git merge origin/aRemoteBranch
Note 1: For a large repo with a long history, you will want to add the --depth=1
option when you use git fetch
.
Note 2: These commands also work with other remote repos so you can setup an origin
and an upstream
if you are working on a fork.
Note 3: user3265569 suggests the following alias in the comments:
From
aLocalBranch
, rungit combine remoteBranch
Alias:combine = !git fetch origin ${1} && git merge origin/${1}
Opposite scenario: If you want to merge one of your local branch on a remote branch (as opposed to a remote branch to a local one, as shown above), you need to create a new local branch on top of said remote branch first:
git checkout -b myBranch origin/aBranch
git merge anotherLocalBranch
The idea here, is to merge "one of your local branch" (here anotherLocalBranch
) to a remote branch (origin/aBranch
).
For that, you create first "myBranch
" as representing that remote branch: that is the git checkout -b myBranch origin/aBranch
part.
And then you can merge anotherLocalBranch
to it (to myBranch
).
This is how I was able to trigger a button click when the page loads.
<li ng-repeat="a in array">
<a class="button" id="btn" ng-click="function(a)" index="$index" on-load-clicker>
{{a.name}}
</a>
</li>
A simple directive that takes the index from the ng-repeat and uses a condition to call the first button in the index and click it when the page loads.
angular
.module("myApp")
.directive('onLoadClicker', function ($timeout) {
return {
restrict: 'A',
scope: {
index: '=index'
},
link: function($scope, iElm) {
if ($scope.index == 0) {
$timeout(function() {
iElm.triggerHandler('click');
}, 0);
}
}
};
});
This was the only way I was able to even trigger an auto click programmatically in the first place. angular.element(document.querySelector('#btn')).click();
Did not work from the controller so making this simple directive seems most effective if you are trying to run a click on page load and you can specify which button to click by passing in the index. I got help through this stack-overflow answer from another post reference: https://stackoverflow.com/a/26495541/4684183 onLoadClicker Directive.
Adding my localhost on Valid OAuth redirect URIs at https://developers.facebook.com/apps/YOUR_APP_ID/fb-login/ solved the problem!
And pay attention for one detail here:
In this case http://localhost:3000 is not the same of http://0.0.0.0:3000 or http://127.0.0.1:3000
Make sure you are using exactly the running url of you sandbox server. I spend some time to discover that...
I do the following in my eBay listings:
<p style="border:solid thick darkblue; border-radius: 1em;
border-width:3px; padding-left:9px; padding-top:6px;
padding-bottom:6px; margin:2px; width:980px;">
This produces a box border with rounded corners.You can play with the variables.
The difference is this:
Int32.Parse()
and Int32.TryParse()
can only convert strings. Convert.ToInt32()
can take any class that implements IConvertible
. If you pass it a string, then they are equivalent, except that you get extra overhead for type comparisons, etc. If you are converting strings, then TryParse()
is probably the better option.
I tricked Safari with a .htaccess:
#http://www.w3.org/P3P/validator.html
<IfModule mod_headers.c>
Header set P3P "policyref=\"/w3c/p3p.xml\", CP=\"NOI DSP COR NID CUR ADM DEV OUR BUS\""
Header set Set-Cookie "test_cookie=1"
</IfModule>
And it stopped working for me too. All my apps are losing the session in Safari and are redirecting out of Facebook. As I'm in a hurry to fix those apps, I'm currently searching for a solution. I'll keep you posted.
Edit (2012-04-06): Apparently Apple "fixed" it with 5.1.4. I'm sure this is the reaction to the Google-thing: "An issue existed in the enforcement of its cookie policy. Third-party websites could set cookies if the "Block Cookies" preference in Safari was set to the default setting of "From third parties and advertisers". http://support.apple.com/kb/HT5190
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('--example', nargs='?', const=1, type=int)
args = parser.parse_args()
print(args)
% test.py
Namespace(example=None)
% test.py --example
Namespace(example=1)
% test.py --example 2
Namespace(example=2)
nargs='?'
means 0-or-1 argumentsconst=1
sets the default when there are 0 argumentstype=int
converts the argument to intIf you want test.py
to set example
to 1 even if no --example
is specified, then include default=1
. That is, with
parser.add_argument('--example', nargs='?', const=1, type=int, default=1)
then
% test.py
Namespace(example=1)
In previous projects, I've used 404. If there's no user 9, then the object was not found. Therefore 404 Not Found is appropriate.
For object exists, but there is no data, 204 No Content would be appropriate. I think in your case, the object does not exist though.
On CentOS Linux release 7.5.1804, we were able to make this work by editing /etc/selinux/config and changing the setting of SELINUX like so:
SELINUX=disabled
Today i faced the same issue and i found a simple and quick solution to the problem using JsonConvert
.
var base = new BaseClass();
var json = JsonConvert.SerializeObject(base);
DerivedClass derived = JsonConvert.DeserializeObject<DerivedClass>(json);
private OutputStream outputStream;
private InputStream inStream;
private void init() throws IOException {
BluetoothAdapter blueAdapter = BluetoothAdapter.getDefaultAdapter();
if (blueAdapter != null) {
if (blueAdapter.isEnabled()) {
Set<BluetoothDevice> bondedDevices = blueAdapter.getBondedDevices();
if(bondedDevices.size() > 0) {
Object[] devices = (Object []) bondedDevices.toArray();
BluetoothDevice device = (BluetoothDevice) devices[position];
ParcelUuid[] uuids = device.getUuids();
BluetoothSocket socket = device.createRfcommSocketToServiceRecord(uuids[0].getUuid());
socket.connect();
outputStream = socket.getOutputStream();
inStream = socket.getInputStream();
}
Log.e("error", "No appropriate paired devices.");
} else {
Log.e("error", "Bluetooth is disabled.");
}
}
}
public void write(String s) throws IOException {
outputStream.write(s.getBytes());
}
public void run() {
final int BUFFER_SIZE = 1024;
byte[] buffer = new byte[BUFFER_SIZE];
int bytes = 0;
int b = BUFFER_SIZE;
while (true) {
try {
bytes = inStream.read(buffer, bytes, BUFFER_SIZE - bytes);
} catch (IOException e) {
e.printStackTrace();
}
}
}
If an algorithm is of T(g(n)), it means that the running time of the algorithm as n (input size) gets larger is proportional to g(n).
If an algorithm is of O(g(n)), it means that the running time of the algorithm as n gets larger is at most proportional to g(n).
Normally, even when people talk about O(g(n)) they actually mean T(g(n)) but technically, there is a difference.
O(n) represents upper bound. T(n) means tight bound. O(n) represents lower bound.
f(x) = T(g(x)) iff f(x) = O(g(x)) and f(x) = O(g(x))
Basically when we say an algorithm is of O(n), it's also O(n2), O(n1000000), O(2n), ... but a T(n) algorithm is not T(n2).
In fact, since f(n) = T(g(n)) means for sufficiently large values of n, f(n) can be bound within c1g(n) and c2g(n) for some values of c1 and c2, i.e. the growth rate of f is asymptotically equal to g: g can be a lower bound and and an upper bound of f. This directly implies f can be a lower bound and an upper bound of g as well. Consequently,
f(x) = T(g(x)) iff g(x) = T(f(x))
Similarly, to show f(n) = T(g(n)), it's enough to show g is an upper bound of f (i.e. f(n) = O(g(n))) and f is a lower bound of g (i.e. f(n) = O(g(n)) which is the exact same thing as g(n) = O(f(n))). Concisely,
f(x) = T(g(x)) iff f(x) = O(g(x)) and g(x) = O(f(x))
There are also little-oh and little-omega (?
) notations representing loose upper and loose lower bounds of a function.
To summarize:
f(x) = O(g(x))
(big-oh) means that the growth rate off(x)
is asymptotically less than or equal to to the growth rate ofg(x)
.
f(x) = O(g(x))
(big-omega) means that the growth rate off(x)
is asymptotically greater than or equal to the growth rate ofg(x)
f(x) = o(g(x))
(little-oh) means that the growth rate off(x)
is asymptotically less than the growth rate ofg(x)
.
f(x) = ?(g(x))
(little-omega) means that the growth rate off(x)
is asymptotically greater than the growth rate ofg(x)
f(x) = T(g(x))
(theta) means that the growth rate off(x)
is asymptotically equal to the growth rate ofg(x)
For a more detailed discussion, you can read the definition on Wikipedia or consult a classic textbook like Introduction to Algorithms by Cormen et al.
Two-way binding just means that:
Backbone doesn't have a "baked-in" implementation of #2 (although you can certainly do it using event listeners). Other frameworks like Knockout do wire up two-way binding automagically.
In Backbone, you can easily achieve #1 by binding a view's "render" method to its model's "change" event. To achieve #2, you need to also add a change listener to the input element, and call model.set
in the handler.
Here's a Fiddle with two-way binding set up in Backbone.
I have done this code snippet with the new renderer api
constructor(private renderer: Renderer2){}
addJsToElement(src: string): HTMLScriptElement {
const script = document.createElement('script');
script.type = 'text/javascript';
script.src = src;
this.renderer.appendChild(document.body, script);
return script;
}
And then call it like this
this.addJsToElement('https://widgets.skyscanner.net/widget-server/js/loader.js').onload = () => {
console.log('SkyScanner Tag loaded');
}
HTTP/2 supports queries multiplexing, headers compression, priority and more intelligent packet streaming management. This results in reduced latency and accelerates content download on modern web pages.
I guess you have installed the 2.7 version manually, while 2.6 comes from a package?
The simple answer is: uninstall python package.
The more complex one is: do not install manually in /usr/local. Build a package with 2.7 version and then upgrade.
Package handling depends on what distribution you use.
I was getting below error when trying to create a new component under a folder.
error: More than one module matches. Use skip-import option to skip importing the component into the closest module.
I have used below command and new component got created successfully under a folder.
ng g c folderName/my_newComponent ---module ../app
The crux of the solution is setting
CURLOPT_RETURNTRANSFER => true
then
$response = curl_exec($ch);
CURLOPT_RETURNTRANSFER tells PHP to store the response in a variable instead of printing it to the page, so $response will contain your response. Here's your most basic working code (I think, didn't test it):
// init curl object
$ch = curl_init();
// define options
$optArray = array(
CURLOPT_URL => 'http://www.google.com',
CURLOPT_RETURNTRANSFER => true
);
// apply those options
curl_setopt_array($ch, $optArray);
// execute request and get response
$result = curl_exec($ch);
In C, the type of a character constant like 'a'
is actually an int
, with size of 4 (or some other implementation-dependent value). In C++, the type is char
, with size of 1. This is one of many small differences between the two languages.
jQuery("#input").live('change', function() {
// since we check more than once against the value, place it in a var.
var inputvalue = $("#input").attr("value");
// if it's value **IS NOT** ""
if(inputvalue !== "") {
jQuery(this).css('outline', 'solid 1px red');
}
// else if it's value **IS** ""
else if(inputvalue === "") {
alert('empty');
}
});
It provides human readable version of output rather "Object": Example:
class Pet(object):
def __init__(self, name, species):
self.name = name
self.species = species
def getName(self):
return self.name
def getSpecies(self):
return self.species
def Norm(self):
return "%s is a %s" % (self.name, self.species)
if __name__=='__main__':
a = Pet("jax", "human")
print a
returns
<__main__.Pet object at 0x029E2F90>
while code with "str" return something different
class Pet(object):
def __init__(self, name, species):
self.name = name
self.species = species
def getName(self):
return self.name
def getSpecies(self):
return self.species
def __str__(self):
return "%s is a %s" % (self.name, self.species)
if __name__=='__main__':
a = Pet("jax", "human")
print a
returns:
jax is a human
You can use the border and box-shadow properties along with CSS pseudo elements to achieve a triple-border sort of effect. See the example below for an idea of how to create three borders at the bottom of a div:
.triple-border:after {_x000D_
content: " ";_x000D_
display: block;_x000D_
width: 100%;_x000D_
background: #FFE962;_x000D_
height: 9px;_x000D_
padding-bottom: 8px;_x000D_
border-bottom: 9px solid #A3C662;_x000D_
box-shadow: -2px 11px 0 -1px #34b6af;_x000D_
}
_x000D_
<div class="triple-border">Triple border bottom with multiple colours</div>
_x000D_
You'll have to play around with the values to get the alignment correct. However, you can also achieve more flexibility, e.g. 4 borders if you put some of the attributes in the proper element rather than the pseudo selector.
Like this?
In LINQ:
var sortedList = originalList.OrderBy(foo => !foo.AVC)
.ToList();
Or in-place:
originalList.Sort((foo1, foo2) => foo2.AVC.CompareTo(foo1.AVC));
As Jon Skeet says, the trick here is knowing that false
is considered to be 'smaller' than true.
If you find that you are doing these ordering operations in lots of different places in your code, you might want to get your type Foo
to implement the IComparable<Foo>
and IComparable
interfaces.
Your reference image looks like a button. Try (can also be done in Interface Builder):
UIButton* button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setFrame:CGRectMake(50, 50, 100, 44)];
[button setImage:[UIImage imageNamed:@"img"] forState:UIControlStateNormal];
[button setImageEdgeInsets:UIEdgeInsetsMake(0, -30, 0, 0)];
[button setTitle:@"Abc" forState:UIControlStateNormal];
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button setBackgroundColor:[UIColor yellowColor]];
[view addSubview:button];
As now to day CKEditor 4+ launched we have to use it.ekeditor 4 setData documentation
CKEDITOR.instances['editor1'].setData(value);
Where editor1
is textarea Id.
Old methods such as insertHtml('html data')
and insertText('text data')
also works fine.
and to get data use
var ckdata = CKEDITOR.instances['editor1'].getData();
var data = CKEDITOR.instances.editor1.getData();
I realize this is old but I figured I'd clear up a misconception for other travelers. Setting plt.pyplot.isinteractive()
to False
means that the plot will on be drawn on specific commands to draw (i.e. plt.pyplot.show()
). Setting plt.pyplot.isinteractive()
to True
means that every pyplot
(plt
) command will trigger a draw command (i.e. plt.pyplot.show()
). So what you were more than likely looking for is plt.pyplot.show()
at the end of your program to display the graph.
As a side note you can shorten these statements a bit by using the following import command import matplotlib.pyplot as plt
rather than matplotlib as plt
.
If you want to set options temporarily to display one large DataFrame, you can use option_context:
with pd.option_context('display.max_rows', None, 'display.max_columns', None):
print (df)
Option values are restored automatically when you exit the with
block.
There are two ways to fix this:
1. Unix Way: In 4 simple steps
which git
in the terminal to know the location of your git
executable. Open that directory & locate gitk
inside the bin
folder. Copy the path --- typically /usr/local/git/bin
~/.bash_profile
to add the location of local git
& gitk
in the paths or, simply copy-pasta from the sample written below.Sample bash_profile
:
# enabling gitk
export PATH=/usr/local/git/bin:$PATH
If you don't have a bash_profile
want to learn how to create one, then click here.
gitk
executable (typically at /usr/local/bin/gitk
), take a backup & open it in a text editor. Find all occurences of lime
in the file & replace them with "#99FF00"
.source ~/.bash_profile
Now, run gitk
2. HomeBrew way
Updates - If you do not have homebrew
on your mac, get it installed first. It may require sudo
privileges.
brew update
brew doctor
brew link git
/usr/local/Cellar/git/2.4.0/bin
to path & then reload bash & run gitk
which git
& observe if git is still linked to /usr/bin/git
source ~/.bash_profile
This is for Kotlin
and use SensorEventListener
Create new class ShakeDetector
class ShakeDetector : SensorEventListener {
private var mListener: OnShakeListener? = null
private var mShakeTimestamp: Long = 0
private var mShakeCount = 0
fun setOnShakeListener(listener: OnShakeListener?) {
mListener = listener
}
interface OnShakeListener {
fun onShake(count: Int)
}
override fun onAccuracyChanged(
sensor: Sensor,
accuracy: Int
) { // ignore
}
override fun onSensorChanged(event: SensorEvent) {
if (mListener != null) {
val x = event.values[0]
val y = event.values[1]
val z = event.values[2]
val gX = x / SensorManager.GRAVITY_EARTH
val gY = y / SensorManager.GRAVITY_EARTH
val gZ = z / SensorManager.GRAVITY_EARTH
// gForce will be close to 1 when there is no movement.
val gForce: Float = sqrt(gX * gX + gY * gY + gZ * gZ)
if (gForce > SHAKE_THRESHOLD_GRAVITY) {
val now = System.currentTimeMillis()
// ignore shake events too close to each other (500ms)
if (mShakeTimestamp + SHAKE_SLOP_TIME_MS > now) {
return
}
// reset the shake count after 3 seconds of no shakes
if (mShakeTimestamp + SHAKE_COUNT_RESET_TIME_MS < now) {
mShakeCount = 0
}
mShakeTimestamp = now
mShakeCount++
mListener!!.onShake(mShakeCount)
}
}
}
companion object {
/*
* The gForce that is necessary to register as shake.
* Must be greater than 1G (one earth gravity unit).
* You can install "G-Force", by Blake La Pierre
* from the Google Play Store and run it to see how
* many G's it takes to register a shake
*/
private const val SHAKE_THRESHOLD_GRAVITY = 2.7f
private const val SHAKE_SLOP_TIME_MS = 500
private const val SHAKE_COUNT_RESET_TIME_MS = 3000
}
}
Your main Activity
class MainActivity : AppCompatActivity() {
// The following are used for the shake detection
private var mSensorManager: SensorManager? = null
private var mAccelerometer: Sensor? = null
private var mShakeDetector: ShakeDetector? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
initSensor()
}
override fun onResume() {
super.onResume()
// Add the following line to register the Session Manager Listener onResume
mSensorManager!!.registerListener(
mShakeDetector,
mAccelerometer,
SensorManager.SENSOR_DELAY_UI
)
}
override fun onPause() { // Add the following line to unregister the Sensor Manager onPause
mSensorManager!!.unregisterListener(mShakeDetector)
super.onPause()
}
private fun initSensor() {
// ShakeDetector initialization
// ShakeDetector initialization
mSensorManager = getSystemService(SENSOR_SERVICE) as SensorManager
mAccelerometer = mSensorManager!!.getDefaultSensor(Sensor.TYPE_ACCELEROMETER)
mShakeDetector = ShakeDetector()
mShakeDetector!!.setOnShakeListener(object : OnShakeListener {
override fun onShake(count: Int) { /*
* The following method, "handleShakeEvent(count):" is a stub //
* method you would use to setup whatever you want done once the
* device has been shook.
*/
Toast.makeText(this@MainActivity, count.toString(), Toast.LENGTH_SHORT).show()
}
})
}
}
Finally add this code to Manifests to make sure the phone has an accelerometer
<uses-feature android:name="android.hardware.sensor.accelerometer" android:required="true" />
In case you are using Silex add the Symfony Asset as a dependency:
composer require symfony/asset
Then you may register Asset Service Provider:
$app->register(new Silex\Provider\AssetServiceProvider(), array(
'assets.version' => 'v1',
'assets.version_format' => '%s?version=%s',
'assets.named_packages' => array(
'css' => array(
'version' => 'css2',
'base_path' => __DIR__.'/../public_html/resources/css'
),
'images' => array(
'base_urls' => array(
'https://img.example.com'
)
),
),
));
Then in your Twig template file in head section:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
{% block head %}
<link rel="stylesheet" href="{{ asset('style.css') }}" />
{% endblock %}
</head>
<body>
</body>
</html>
For Bootstrap 4:
Just use
<ul class="navbar-nav mx-auto">
mx-auto will do the job
Prepending a BOM (\uFEFF) worked for me (Excel 2007), in that Excel recognised the file as UTF-8. Otherwise, saving it and using the import wizard works, but is less ideal.
int32
and time.Duration
are different types. You need to convert the int32
to a time.Duration
, such as time.Sleep(time.Duration(rand.Int31n(1000)) * time.Millisecond)
.
Take the case of two tables, Books
and Orders
. In case, we increase the number of books in a particular order with Order.ID = 1002
in Orders
table then we also need to reduce that the total number of books available in our stock by the same number in Books
table.
UPDATE Books, Orders
SET Orders.Quantity = Orders.Quantity + 2,
Books.InStock = Books.InStock - 2
WHERE
Books.BookID = Orders.BookID
AND Orders.OrderID = 1002;
The ACTION_SEND
will only give you options for sending using GMail, YahooMail... etc(Any application installed on your phone, that can perform ACTION_SEND
). If you want to share on Facebook or Twitter you will need to place custom buttons for each and use their own SDK such as Facebook SDK or Twitter4J .
To force TCP/IP being used replace localhost with 127.0.0.1 in your connection string.
As you are using a username and password make sure SQL authentication is enabled. By default only Windows integrated is enabled on sqlserver 2008.
With SqlServer authentication keep in mind that a password policy is in place to enforce security.
also you can open more than two page try this
`<a href="http://www.microsoft.com" target="_blank" onclick="window.open('http://www.google.com'); window.open('http://www.yahoo.com');">Click Here</a>`
This is not right. Here's how you should use Runtime.exec()
. You might also try its more modern cousin, ProcessBuilder
:
When using jQuery, return false
is doing 3 separate things when you call it:
event.preventDefault();
event.stopPropagation();
See jQuery Events: Stop (Mis)Using Return False for more information and examples.
I have a solution for this issue, check the code:
FirefoxProfile firefoxProfile = new FirefoxProfile();
firefoxProfile.setPreference("browser.download.folderList",2);
firefoxProfile.setPreference("browser.download.manager.showWhenStarting",false);
firefoxProfile.setPreference("browser.download.dir","c:\\downloads");
firefoxProfile.setPreference("browser.helperApps.neverAsk.saveToDisk","text/csv");
WebDriver driver = new FirefoxDriver(firefoxProfile);//new RemoteWebDriver(new URL("http://localhost:4444/wd/hub"), capability);
driver.navigate().to("http://www.myfile.com/hey.csv");
For anyone else looking for answer to the question when dealing with different linebreaks:
string.replaceAll("(\n|\r|\r\n)$", ""); // Java 7
string.replaceAll("\\R$", ""); // Java 8
This should remove exactly the last line break and preserve all other whitespace from string and work with Unix (\n), Windows (\r\n) and old Mac (\r) line breaks: https://stackoverflow.com/a/20056634, https://stackoverflow.com/a/49791415. "\\R"
is matcher introduced in Java 8 in Pattern class: https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html
This passes these tests:
// Windows:
value = "\r\n test \r\n value \r\n";
assertEquals("\r\n test \r\n value ", value.replaceAll("\\R$", ""));
// Unix:
value = "\n test \n value \n";
assertEquals("\n test \n value ", value.replaceAll("\\R$", ""));
// Old Mac:
value = "\r test \r value \r";
assertEquals("\r test \r value ", value.replaceAll("\\R$", ""));
I've added a number of helper methods to the O2 Platform (Open Source project) which allow you easily script an interaction with another process via the console output and input (see http://code.google.com/p/o2platform/source/browse/trunk/O2_Scripts/APIs/Windows/CmdExe/CmdExeAPI.cs)
Also useful for you might be the API that allows the viewing of the console output of the current process (in an existing control or popup window). See this blog post for more details: http://o2platform.wordpress.com/2011/11/26/api_consoleout-cs-inprocess-capture-of-the-console-output/ (this blog also contains details of how to consume the console output of new processes)
A couple of suggestions
The ACE driver isn't installed by default. It's also a 64 bit driver, so it might be worth disabling 32bit in your app pool. I've known 64 bit drivers not work when 32 bit is enabled.(eg the ISAPI filter which connects IIS to Tomcat).
The older JET driver is 32bit. It is included by default. If you could save a copy of your database as a .mdb file then using the JET driver might be a workaround
Also You Can Do like This.
public boolean isPasswordValid(String password) {
String regExpn =
"^(?=.*[0-9])(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=])(?=\\S+$).{8,}$";
CharSequence inputStr = password;
Pattern pattern = Pattern.compile(regExpn,Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(inputStr);
if(matcher.matches())
return true;
else
return false;
}
Easy task with grep
:
grep -v help filename
Append > newFileName
to redirect output to a new file.
To clarify it, the normal behavior will be printing the lines on screen. To pipe it to a file, the >
can be used. Thus, in this command:
grep -v help filename > newFileName
grep
calls the grep
program, obviously-v
is a flag to inverse the output. By defaulf, grep
prints the lines that match the given pattern. With this flag, it will print the lines that don't match the pattern.help
is the pattern to matchfilename
is the name of the input file>
redirects the output to the following itemnewFileName
the new file where output will be saved.As you may noticed, you will not be deleting things in your file. grep
will read it and another file will be saved, modified accordingly.
In Swift:
func pathForResource( name: String?,
ofType ext: String?,
inDirectory subpath: String?) -> String? {
// **name:** Name of Hmtl
// **ofType ext:** extension for type of file. In this case "html"
// **inDirectory subpath:** the folder where are the file.
// In this case the file is in root folder
let path = NSBundle.mainBundle().pathForResource( "dados",
ofType: "html",
inDirectory: "root")
var requestURL = NSURL(string:path!)
var request = NSURLRequest(URL:requestURL)
webView.loadRequest(request)
}
If you're using AD you can use serverless binding to locate a domain controller for the default domain, then use LDAP://rootDSE to get information about the directory server, as described in the linked article.
Agreed with the answer from sll, but experienced another hurdle which was having specified a namespace in the attributes, when receiving the return xml that namespace wasn't included and thus failed finding the class.
i had to find a workaround to specifying the namespace in the attribute and it worked.
ie.
[Serializable()]
[XmlRoot("Patient", Namespace = "http://www.xxxx.org/TargetNamespace")]
public class Patient
generated
<Patient xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://www.xxxx.org/TargetNamespace">
but I had to change it to
[Serializable()]
[XmlRoot("Patient")]
public class Patient
which generated to
<Patient xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
This solved my problem, hope it helps someone else.
?php
/* Database config */
$db_host = 'localhost';
$db_user = '~';
$db_pass = '~';
$db_database = 'banners';
/* End config */
$mysqli = new mysqli($db_host, $db_user, $db_pass, $db_database);
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
?>
Unfortunatelly, today (September 2018) you can not find cross-browser solution for client side file writing.
For example: in some browser like a Chrome we have today this possibility and we can write with FileSystemFileEntry.createWriter() with client side call, but according to the docu:
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
For IE (but not MS Edge) we could use ActiveX too, but this is only for this client.
If you want update your JSON file cross-browser you have to use server and client side together.
On client side you can make a request to the server and then you have to read the response from server. Or you could read a file with FileReader too. For the cross-browser writing to the file you have to have some server (see below on server part).
var xhr = new XMLHttpRequest(),
jsonArr,
method = "GET",
jsonRequestURL = "SOME_PATH/jsonFile/";
xhr.open(method, jsonRequestURL, true);
xhr.onreadystatechange = function()
{
if(xhr.readyState == 4 && xhr.status == 200)
{
// we convert your JSON into JavaScript object
jsonArr = JSON.parse(xhr.responseText);
// we add new value:
jsonArr.push({"nissan": "sentra", "color": "green"});
// we send with new request the updated JSON file to the server:
xhr.open("POST", jsonRequestURL, true);
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
// if you want to handle the POST response write (in this case you do not need it):
// xhr.onreadystatechange = function(){ /* handle POST response */ };
xhr.send("jsonTxt="+JSON.stringify(jsonArr));
// but on this place you have to have a server for write updated JSON to the file
}
};
xhr.send(null);
You can use a lot of different servers, but I would like to write about PHP and Node.js servers.
By using searching machine you could find "free PHP Web Hosting*" or "free Node.js Web Hosting". For PHP server I would recommend 000webhost.com and for Node.js I would recommend to see and to read this list.
PHP server side script solution
The PHP script for reading and writing from JSON file:
<?php
// This PHP script must be in "SOME_PATH/jsonFile/index.php"
$file = 'jsonFile.txt';
if($_SERVER['REQUEST_METHOD'] === 'POST')
// or if(!empty($_POST))
{
file_put_contents($file, $_POST["jsonTxt"]);
//may be some error handeling if you want
}
else if($_SERVER['REQUEST_METHOD'] === 'GET')
// or else if(!empty($_GET))
{
echo file_get_contents($file);
//may be some error handeling if you want
}
?>
Node.js server side script solution
I think that Node.js is a little bit complex for beginner. This is not normal JavaScript like in browser. Before you start with Node.js I would recommend to read one from two books:
The Node.js script for reading and writing from JSON file:
var http = require("http"),
fs = require("fs"),
port = 8080,
pathToJSONFile = '/SOME_PATH/jsonFile.txt';
http.createServer(function(request, response)
{
if(request.method == 'GET')
{
response.writeHead(200, {"Content-Type": "application/json"});
response.write(fs.readFile(pathToJSONFile, 'utf8'));
response.end();
}
else if(request.method == 'POST')
{
var body = [];
request.on('data', function(chunk)
{
body.push(chunk);
});
request.on('end', function()
{
body = Buffer.concat(body).toString();
var myJSONdata = body.split("=")[1];
fs.writeFileSync(pathToJSONFile, myJSONdata); //default: 'utf8'
});
}
}).listen(port);
Related links for Node.js:
window.location.href
is what you're looking for.
To directly answer your question, yes, you can mock some methods without mocking others. This is called a partial mock. See the Mockito documentation on partial mocks for more information.
For your example, you can do something like the following, in your test:
Stock stock = mock(Stock.class);
when(stock.getPrice()).thenReturn(100.00); // Mock implementation
when(stock.getQuantity()).thenReturn(200); // Mock implementation
when(stock.getValue()).thenCallRealMethod(); // Real implementation
In that case, each method implementation is mocked, unless specify thenCallRealMethod()
in the when(..)
clause.
There is also a possibility the other way around with spy instead of mock:
Stock stock = spy(Stock.class);
when(stock.getPrice()).thenReturn(100.00); // Mock implementation
when(stock.getQuantity()).thenReturn(200); // Mock implementation
// All other method call will use the real implementations
In that case, all method implementation are the real one, except if you have defined a mocked behaviour with when(..)
.
There is one important pitfall when you use when(Object)
with spy like in the previous example. The real method will be called (because stock.getPrice()
is evaluated before when(..)
at runtime). This can be a problem if your method contains logic that should not be called. You can write the previous example like this:
Stock stock = spy(Stock.class);
doReturn(100.00).when(stock).getPrice(); // Mock implementation
doReturn(200).when(stock).getQuantity(); // Mock implementation
// All other method call will use the real implementations
Another possibility may be to use org.mockito.Mockito.CALLS_REAL_METHODS
, such as:
Stock MOCK_STOCK = Mockito.mock( Stock.class, CALLS_REAL_METHODS );
This delegates unstubbed calls to real implementations.
However, with your example, I believe it will still fail, since the implementation of getValue()
relies on quantity
and price
, rather than getQuantity()
and getPrice()
, which is what you've mocked.
Another possibility is to avoid mocks altogether:
@Test
public void getValueTest() {
Stock stock = new Stock(100.00, 200);
double value = stock.getValue();
assertEquals("Stock value not correct", 100.00*200, value, .00001);
}
Make sure you have run the MongoDB's Service before you want to connect the console.
run and start the server:
$ sudo mongod
then:
$ mongo
...
>
I often need to do the same thing. The trick is getting the header repeated into each of the split chunks. I wrote the following cmdlet (PowerShell v2 CTP 3) and it does the trick.
##############################################################################
#.SYNOPSIS
# Breaks a text file into multiple text files in a destination, where each
# file contains a maximum number of lines.
#
#.DESCRIPTION
# When working with files that have a header, it is often desirable to have
# the header information repeated in all of the split files. Split-File
# supports this functionality with the -rc (RepeatCount) parameter.
#
#.PARAMETER Path
# Specifies the path to an item. Wildcards are permitted.
#
#.PARAMETER LiteralPath
# Specifies the path to an item. Unlike Path, the value of LiteralPath is
# used exactly as it is typed. No characters are interpreted as wildcards.
# If the path includes escape characters, enclose it in single quotation marks.
# Single quotation marks tell Windows PowerShell not to interpret any
# characters as escape sequences.
#
#.PARAMETER Destination
# (Or -d) The location in which to place the chunked output files.
#
#.PARAMETER Count
# (Or -c) The maximum number of lines in each file.
#
#.PARAMETER RepeatCount
# (Or -rc) Specifies the number of "header" lines from the input file that will
# be repeated in each output file. Typically this is 0 or 1 but it can be any
# number of lines.
#
#.EXAMPLE
# Split-File bigfile.csv 3000 -rc 1
#
#.LINK
# Out-TempFile
##############################################################################
function Split-File {
[CmdletBinding(DefaultParameterSetName='Path')]
param(
[Parameter(ParameterSetName='Path', Position=1, Mandatory=$true, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)]
[String[]]$Path,
[Alias("PSPath")]
[Parameter(ParameterSetName='LiteralPath', Mandatory=$true, ValueFromPipelineByPropertyName=$true)]
[String[]]$LiteralPath,
[Alias('c')]
[Parameter(Position=2,Mandatory=$true)]
[Int32]$Count,
[Alias('d')]
[Parameter(Position=3)]
[String]$Destination='.',
[Alias('rc')]
[Parameter()]
[Int32]$RepeatCount
)
process {
# yeah! the cmdlet supports wildcards
if ($LiteralPath) { $ResolveArgs = @{LiteralPath=$LiteralPath} }
elseif ($Path) { $ResolveArgs = @{Path=$Path} }
Resolve-Path @ResolveArgs | %{
$InputName = [IO.Path]::GetFileNameWithoutExtension($_)
$InputExt = [IO.Path]::GetExtension($_)
if ($RepeatCount) { $Header = Get-Content $_ -TotalCount:$RepeatCount }
# get the input file in manageable chunks
$Part = 1
Get-Content $_ -ReadCount:$Count | %{
# make an output filename with a suffix
$OutputFile = Join-Path $Destination ('{0}-{1:0000}{2}' -f ($InputName,$Part,$InputExt))
# In the first iteration the header will be
# copied to the output file as usual
# on subsequent iterations we have to do it
if ($RepeatCount -and $Part -gt 1) {
Set-Content $OutputFile $Header
}
# write this chunk to the output file
Write-Host "Writing $OutputFile"
Add-Content $OutputFile $_
$Part += 1
}
}
}
}
If it's a single byte, just cast the byte
to a char
and it should work out to be fine i.e. give a char
entity corresponding to the codepoint value of the given byte. If not, use the String
constructor as mentioned elsewhere.
char ch = (char)0x63;
System.out.println(ch);
Import cars data
import pandas as pd
cars = pd.read_csv('cars.csv', index_col = 0)
Here is how the cars.csv file looks.
Print out drives_right column as Series:
print(cars.loc[:,"drives_right"])
US True
AUS False
JAP False
IN False
RU True
MOR True
EG True
Name: drives_right, dtype: bool
The single bracket version gives a Pandas Series, the double bracket version gives a Pandas DataFrame.
Print out drives_right column as DataFrame
print(cars.loc[:,["drives_right"]])
drives_right
US True
AUS False
JAP False
IN False
RU True
MOR True
EG True
Adding a Series to another Series creates a DataFrame.
I had a similar problem and what worked for me was to make a new clone from my original repository