Moment is great time manipulation library but it's considered as a legacy project, and the team is recommending to use other libraries.
date-fns is one of the best lightweight libraries, it's modular, so you can pick the functions you need and reduce bundle size (issue & statement).
Another common argument against using Moment in modern applications is its size. Moment doesn't work well with modern "tree shaking" algorithms, so it tends to increase the size of web application bundles.
import { format } from 'date-fns' // 21K (gzipped: 5.8K)
import moment from 'moment' // 292.3K (gzipped: 71.6K)
Format date with date-fns
:
// moment.js
moment().format('MM/DD/YYYY');
// => "12/18/2020"
// date-fns
import { format } from 'date-fns'
format(new Date(), 'MM/dd/yyyy');
// => "12/18/2020"
More on cheat sheet with the list of functions which you can use to replace moment.js: You-Dont-Need-Momentjs
I find that I have similar conversations a lot. On the one hand, you have a compact, efficient method of achieving your goal. On the other hand, you have something that the rest of your team might not understand, making it hard to maintain in the future.
My general rule is to ask if the technique being used is something that it is reasonable to expect programmers in general to know. In this case, I think that it is reasonable to expect programmers to know how to use boolean operators, so using xor in an if statement is okay.
As an example of something that wouldn't be okay, take the trick of using xor to swap two variables without using a temporary variable. That is a trick that I wouldn't expect everybody to be familiar with, so it wouldn't pass code review.
Update April 27, 2015
Up and coming to the HTML5 scene is the download attribute. It's supported in Firefox and Chrome, and soon to come to IE11. Depending on your needs, you could use it instead of an AJAX request (or using window.location
) so long as the file you want to download is on the same origin as your site.
You could always make the AJAX request/window.location
a fallback by using some JavaScript to test if download
is supported and if not, switching it to call window.location
.
Original answer
You can't have an AJAX request open the download prompt since you physically have to navigate to the file to prompt for download. Instead, you could use a success function to navigate to download.php. This will open the download prompt but won't change the current page.
$.ajax({
url: 'download.php',
type: 'POST',
success: function() {
window.location = 'download.php';
}
});
Even though this answers the question, it's better to just use window.location
and avoid the AJAX request entirely.
Best practice: one form per product is definitely the way to go.
Benefits:
In your specific situation
If you only ever intend to have one form element, in this case a submit
button, one form for all should work just fine.
My recommendation Do one form per product, and change your markup to something like:
<form method="post" action="">
<input type="hidden" name="product_id" value="123">
<button type="submit" name="action" value="add_to_cart">Add to Cart</button>
</form>
This will give you a much cleaner and usable POST
. No parsing. And it will allow you to add more parameters in the future (size, color, quantity, etc).
Note: There's no technical benefit to using
<button>
vs.<input>
, but as a programmer I find it cooler to work withaction=='add_to_cart'
thanaction=='Add to Cart'
. Besides, I hate mixing presentation with logic. If one day you decide that it makes more sense for the button to say "Add" or if you want to use different languages, you could do so freely without having to worry about your back-end code.
What about using the unshift
method?
ary.unshift(obj, ...) ? ary
Prepends objects to the front of self, moving other elements upwards.
And in use:
irb>> a = [ 0, 1, 2]
=> [0, 1, 2]
irb>> a.unshift('x')
=> ["x", 0, 1, 2]
irb>> a.inspect
=> "["x", 0, 1, 2]"
<object CLASSID="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" width="320" height="256" CODEBASE="http://www.apple.com/qtactivex/qtplugin.cab">
<param name="src" value="sample.mov">
<param name="qtsrc" value="rtsp://realmedia.uic.edu/itl/ecampb5/demo_broad.mov">
<param name="autoplay" value="true">
<param name="loop" value="false">
<param name="controller" value="true">
<embed src="sample.mov" qtsrc="rtsp://realmedia.uic.edu/itl/ecampb5/demo_broad.mov" width="320" height="256" autoplay="true" loop="false" controller="true" pluginspage="http://www.apple.com/quicktime/"></embed>
</object>
source is the first search result of the Google
You could try the "Microsoft Date and Time Picker Control". To use it, in the Toolbox, you right-click and choose "Additional Controls...". Then you check "Microsoft Date and Time Picker Control 6.0" and OK. You will have a new control in the Toolbox to do what you need.
I just found some printscreen of this on : http://www.logicwurks.com/CodeExamplePages/EDatePickerControl.html Forget the procedures, just check the printscreens.
Working demo:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript">
onload = function(){
var divg = document.createElement("div");
divg.appendChild(document.createTextNode("New DIV"));
document.body.appendChild(divg);
};
</script>
</head>
<body>
</body>
</html>
The second parameter of the callback function passed to each() will contain the actual DOM element and not a jQuery wrapper object. You can call the getAttribute() method of the element:
$('#category_sorting_form_save').click(function() {
var elements = $("#category_sorting_elements > div");
$.each(elements, function(key, value) {
console.info(key, ": ", value);
console.info("cat_id: ", value.getAttribute('cat_id'));
});
});
Or wrap the element in a jQuery object yourself:
$('#category_sorting_form_save').click(function() {
var elements = $("#category_sorting_elements > div");
$.each(elements, function(key, value) {
console.info(key, ": ", value);
console.info("cat_id: ", $(value).attr('cat_id'));
});
});
Or simply use $(this)
:
$('#category_sorting_form_save').click(function() {
var elements = $("#category_sorting_elements > div");
$.each(elements, function() {
console.info("cat_id: ", $(this).attr('cat_id'));
});
});
Use Python 2.7, is has more 3rd party libs at the moment. (Edit: see below).
I recommend you using the stdlib module urllib2
, it will allow you to comfortably get web resources.
Example:
import urllib2
response = urllib2.urlopen("http://google.de")
page_source = response.read()
For parsing the code, have a look at BeautifulSoup
.
BTW: what exactly do you want to do:
Just for background, I need to download a page and replace any img with ones I have
Edit: It's 2014 now, most of the important libraries have been ported, and you should definitely use Python 3 if you can. python-requests
is a very nice high-level library which is easier to use than urllib2
.
Double.parseDouble(p.replace(',','.'))
...is very quick as it searches the underlying character array on a char-by-char basis. The string replace versions compile a RegEx to evaluate.
Basically replace(char,char) is about 10 times quicker and since you'll be doing these kind of things in low-level code it makes sense to think about this. The Hot Spot optimiser will not figure it out... Certainly doesn't on my system.
Note: The solution here needs to be done at application design stage. It would be difficult to engineer this in later.
Use a hidden field to pass around the session identifier.
For this to work each page must include a form:
<form method="post" action="/handler">
<input type="hidden" name="sessionId" value="123456890123456890ABCDEF01" />
<input type="hidden" name="action" value="" />
</form>
Every action on your side, including navigation, POSTs the form back (setting the action
as appropriate). For "unsafe" requests, you could include another parameter, say containing a JSON value of the data to be submitted:
<input type="hidden" name="action" value="completeCheckout" />
<input type="hidden" name="data" value='{ "cardNumber" : "4111111111111111", ... ' />
As there are no cookies, each tab will be independent and will have no knowledge of other sessions in the same browser.
Lots of advantages, particularly when it comes to security:
Some disadvantages:
cat /proc/meminfo | grep MemTotal
or free gives you the exact amount of RAM your server has. This is not "available memory".
I guess your issue comes up when you have a VM and you would like to calculate the full amount of memory hosted by the hypervisor but you will have to log into the hypervisor in that case.
cat /proc/meminfo | grep MemTotal
is equivalent to
getconf -a | grep PAGES | awk 'BEGIN {total = 1} {if (NR == 1 || NR == 3) total *=$NF} END {print total / 1024" kB"}'
If you have more than 1 image on the page that you like to enlarge, name the id's for instance "content1", "content2", "content3", etc. Then extend the script with this, like so:
$(document).ready(function() {
$("[id^=content]").hover(function() {
$(this).addClass('transition');
}, function() {
$(this).removeClass('transition');
});
});
Edit: Change the "#content" CSS to: img[id^=content] to remain having the transition effects.
INSERT INTO ... ON DUPLICATE KEY UPDATE will only work for MYSQL, not for SQL Server.
for SQL server, the way to work around this is to first declare a temp table, insert value to that temp table, and then use MERGE
Like this:
declare @Source table
(
name varchar(30),
age decimal(23,0)
)
insert into @Source VALUES
('Helen', 24),
('Katrina', 21),
('Samia', 22),
('Hui Ling', 25),
('Yumie', 29);
MERGE beautiful AS Tg
using @source as Sc
on tg.namet=sc.name
when matched then update
set tg.age=sc.age
when not matched then
insert (name, age) VALUES
(SC.name, sc.age);
To default-initialize an array of T
s, T
must be default constructible. Normally the compiler gives you a default constructor for free. However, since you declared a constructor yourself, the compiler does not generate a default constructor.
Your options:
initialize all the elements of the array upon declaration (you can do this because name
is an aggregate);
name someName[4] = { { "Arthur", "Dent" },
{ "Ford", "Prefect" },
{ "Tricia", "McMillan" },
{ "Zaphod", "Beeblebrox" }
};
use a std::vector
instead, and only add element when you have them constructed.
Old question but nowadays CSS3 makes vertical alignment really simple!
Just add to the <div>
this css:
display:flex;
align-items:center;
justify-content:center;
Live Example:
.img_thumb {_x000D_
float: left;_x000D_
height: 120px;_x000D_
margin-bottom: 5px;_x000D_
margin-left: 9px;_x000D_
position: relative;_x000D_
width: 147px;_x000D_
background-color: rgba(0, 0, 0, 0.5);_x000D_
border-radius: 3px;_x000D_
display:flex;_x000D_
align-items:center;_x000D_
justify-content:center;_x000D_
}
_x000D_
<div class="img_thumb">_x000D_
<a class="images_class" href="http://i.imgur.com/2FMLuSn.jpg" rel="images">_x000D_
<img src="http://i.imgur.com/2FMLuSn.jpg" title="img_title" alt="img_alt" />_x000D_
</a>_x000D_
</div>
_x000D_
Note: You can first preview what your patch will do:
First the stats:
git apply --stat a_file.patch
Then a dry run to detect errors:
git apply --check a_file.patch
Finally, you can use git am
to apply your patch as a commit. This also allows you to sign off an applied patch.
This can be useful for later reference.
git am --signoff < a_file.patch
See an example in this article:
In your git log, you’ll find that the commit messages contain a “Signed-off-by” tag. This tag will be read by Github and others to provide useful info about how the commit ended up in the code.
You can try the method shown below. In this method, you will have the freedom to specify/input the number of variables that you wish to enter.
mydict = {0:"c", 1:"d", 2:"e", 3:"f"}
mylist= []
num_var = int(raw_input("How many variables? ")) #Enter 3 when asked for input.
for i in range(num_var):
''' Enter 0 as first input, 1 as second input and 3 as third input.'''
globals()['var'+str('i').zfill(3)] = int(raw_input("Enter an integer between 0 and 3 "))
mylist += mydict[globals()['var'+str('i').zfill(3)]]
print mylist
>>> ['c', 'd', 'f']
//NSString *myString = @"I have to replace text 'Dr Andrew Murphy, John Smith' ";
NSString *myString = @"Not a member?signin";
//Create mutable string from original one
NSMutableAttributedString *attString = [[NSMutableAttributedString alloc] initWithString:myString];
//Fing range of the string you want to change colour
//If you need to change colour in more that one place just repeat it
NSRange range = [myString rangeOfString:@"signin"];
[attString addAttribute:NSForegroundColorAttributeName value:[UIColor colorWithRed:(63/255.0) green:(163/255.0) blue:(158/255.0) alpha:1.0] range:range];
//Add it to the label - notice its not text property but it's attributeText
_label.attributedText = attString;
They both are just typecast zero's. Functionally, there's no difference between them. ie.,
#define NULL ((void*)0)
#define nil ((id)0)
There is a difference, but only to yourself and other humans that read the code, the compiler doesn't care.
One more thing nil is an object value while NULL is a generic pointer value.
You can try:
jar tvf jarfile.jar
This will be helpful only if your jar is executable i.e. in manifest you have defined some class as main class
Use
df[df['id']==x].index.tolist()
If x
is present in id
then it'll return the list of indices where it is present, else it gives an empty list.
body.bg {
background-size: cover;
background-repeat: no-repeat;
min-height: 100vh;
background: white url(../images/bg-404.jpg) center center no-repeat;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
}
Try This
_x000D_
_x000D_
body.bg {_x000D_
background-size: cover;_x000D_
background-repeat: no-repeat;_x000D_
min-height: 100vh;_x000D_
background: white url(http://lorempixel.com/output/city-q-c-1920-1080-7.jpg) center center no-repeat;_x000D_
-webkit-background-size: cover;_x000D_
-moz-background-size: cover;_x000D_
-o-background-size: cover;_x000D_
}
_x000D_
<body class="bg">_x000D_
_x000D_
_x000D_
_x000D_
</body>
_x000D_
_x000D_
_x000D_
To complement the above answers, here is a small working example of a program that prints the current time and date, including milliseconds.
import java.text.SimpleDateFormat;
import java.util.Date;
public class test {
public static void main(String argv[]){
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
Date now = new Date();
String strDate = sdf.format(now);
System.out.println(strDate);
}
}
Get the hash code of last commit.
git log
git revert <hash_code_from_git_log>
git push
check out in the GHR. you might get what ever you need, hope you this is useful
Depending on where you are in the kestrel pipeline - if you have access to IConfiguration
(Startup.cs
constructor) or IWebHostEnvironment
(formerly IHostingEnvironment
) you can either inject the IWebHostEnvironment
into your constructor or just request the key from the configuration.
IWebHostEnvironment
in Startup.cs
Constructorpublic Startup(IConfiguration configuration, IWebHostEnvironment env)
{
var contentRoot = env.ContentRootPath;
}
public Startup(IConfiguration configuration)
{
var contentRoot = configuration.GetValue<string>(WebHostDefaults.ContentRootKey);
}
I keep coming back to this... Many of the answers here do a great job of explaining what the problem is but not how to fix it.
The solution to this is to manually delete the bin files in your projects published directory. It will clean up all the references and force the project to use the latest DLLs.
I don't suggest using the publish tools Delete function because this tends to throw off IIS.
The JSON you posted looks fine, however in your code, it is most likely not a JSON string anymore, but already a JavaScript object. This means, no more parsing is necessary.
You can test this yourself, e.g. in Chrome's console:
new Object().toString()
// "[object Object]"
JSON.parse(new Object())
// Uncaught SyntaxError: Unexpected token o in JSON at position 1
JSON.parse("[object Object]")
// Uncaught SyntaxError: Unexpected token o in JSON at position 1
JSON.parse()
converts the input into a string. The toString()
method of JavaScript objects by default returns [object Object]
, resulting in the observed behavior.
Try the following instead:
var newData = userData.data.userList;
Just realized what's going on.
I had the navbar inside a header which was position: fixed
;
Changed the z-index
on the header and it's working now - guess I didn't look high enough up the containers to set the z-index
initially !#@!?
Thanks.
Another possibility is you squashed some migrations and applied the resulting one, but forgot to remove the replaces
attribute from it.
Go to "Window -> preferences -> Server -> Runtime Environments"
Remove the existing servers they might not have downloaded completely.
Add new Server
Here is a solution that may help with this strange behaviour. I couldn't find a better solution than place a button to manually trigger the change event.
EDIT: Maybe a custom binding like this could help:
ko.bindingHandlers.changeSelectValue = {
init: function(element,valueAccessor){
$(element).change(function(){
var value = $(element).val();
if($(element).is(":focus")){
//Do whatever you want with the new value
}
});
}
};
And in your select data-bind attribute add:
changeSelectValue: yourSelectValue
Basically same as the accepted answer, but updated with new type and multiple country restrictions:
function initialize() {
var options = {
types: ['(regions)'],
componentRestrictions: {country: ["us", "de"]}
};
var input = document.getElementById('searchTextField');
var autocomplete = new google.maps.places.Autocomplete(input, options);
}
Using '(regions)'
instead of '(cities)'
allows to search by postal code as well as city name.
See official documentation, Table 3: https://developers.google.com/places/supported_types
Hope this helps:
Step 1.) Go to https://www.eclipse.org/downloads/index-developer.php?release=kepler and download appropriate Eclipse version.
Step 2.) Extract downloaded zip file in appropriate location. In this tutorial, I have downloaded and installed it under program files.
Step 3.) Right click on eclipse.exe file and send shortcut to desktop.
Step 4.) Double click on eclipse shortcut from desktop and select appropriate location to create your workspace.
Step 5.) Navigate to Window > Preferences. This should open Preferences window.
Step 6.) On the left hand side page expend “Java” and click on “Installed JREs”
Step 7.) Click Add. It will open “Add JRE” dialog. Select “Standard VM” and click Next.
Step 8.) For “JRE home” select “Direcotry…”. This will open “Browse for folder” dialog. Select the location where your JDK is installed. NOTE: MAKE SURE THAT ITS x64 AS WELL, AS WE ARE USING 64-BIT VERSION OF ECLIPSE.
Step 9.) If you have selected proper location, it will show JDK version in JRE name and it will display “JRE system libraries”.
Step 10.) Click finish. Now your JDK is properly pointed as “Installed JREs”.
Step 11.) Select checkbox unchecked before name of your JDK name.
Click ok and you’re done. You are now using JDK as “Installed JREs”
Read complete procedure at below location.
A simple way to do so is to add the below code (for Seaborn):
for p in splot.patches:
splot.annotate(format(p.get_height(), '.1f'),
(p.get_x() + p.get_width() / 2., p.get_height()),
ha = 'center', va = 'center',
xytext = (0, 9),
textcoords = 'offset points')
Example :
splot = sns.barplot(df['X'], df['Y'])
# Annotate the bars in plot
for p in splot.patches:
splot.annotate(format(p.get_height(), '.1f'),
(p.get_x() + p.get_width() / 2., p.get_height()),
ha = 'center', va = 'center',
xytext = (0, 9),
textcoords = 'offset points')
plt.show()
Graphviz is evidently included in Anaconda so as to be used with pydot or pydot-ng (both of which are included in Anaconda). You may want to consider using one of those instead of the 'graphviz' Python module.
Use a directive which adds to both the $formatters and $parsers collections to ensure that the transformation is performed in both directions.
See this other answer for more details including a link to jsfiddle.
<select ng-model="selectedCar" ><option ng-repeat="car in cars " value="{{car.model}}">{{car.model}}</option></select>
<script>var app = angular.module('myApp', []);app.controller('myCtrl', function($scope) { $scope.cars = [{model : "Ford Mustang", color : "red"}, {model : "Fiat 500", color : "white"},{model : "Volvo XC90", color : "black"}];
$scope.selectedCar=$scope.cars[0].model ;});
A very simple hack is to use the json import instead of csv. For example instead of csv.writer just do the following:
fd = codecs.open(tempfilename, 'wb', 'utf-8')
for c in whatever :
fd.write( json.dumps(c) [1:-1] ) # json dumps writes ["a",..]
fd.write('\n')
fd.close()
Basically, given the list of fields in correct order, the json formatted string is identical to a csv line except for [ and ] at the start and end respectively. And json seems to be robust to utf-8 in python 2.*
One other way would be to use 4 letter commands to validate if zookeeper service is healthy or not
echo stat | nc <zookeeper ip> 2181
echo mntr | nc <zookeeper ip> 2181
echo isro | nc <zookeeper ip> 2181
More details on the documentation link below https://zookeeper.apache.org/doc/r3.1.2/zookeeperAdmin.html#sc_zkCommands
Scanning for classes is not easy with pure Java.
The spring framework offers a class called ClassPathScanningCandidateComponentProvider that can do what you need. The following example would find all subclasses of MyClass in the package org.example.package
ClassPathScanningCandidateComponentProvider provider = new ClassPathScanningCandidateComponentProvider(false);
provider.addIncludeFilter(new AssignableTypeFilter(MyClass.class));
// scan in org.example.package
Set<BeanDefinition> components = provider.findCandidateComponents("org/example/package");
for (BeanDefinition component : components)
{
Class cls = Class.forName(component.getBeanClassName());
// use class cls found
}
This method has the additional benefit of using a bytecode analyzer to find the candidates which means it will not load all classes it scans.
should call the function properly; like- Fibonacci:input
It means that you have a memory error. You may be trying to free
a pointer that wasn't allocated by malloc
(or delete
an object that wasn't created by new
) or you may be trying to free
/delete
such an object more than once. You may be overflowing a buffer or otherwise writing to memory to which you shouldn't be writing, causing heap corruption.
Any number of programming errors can cause this problem. You need to use a debugger, get a backtrace, and see what your program is doing when the error occurs. If that fails and you determine you have corrupted the heap at some previous point in time, you may be in for some painful debugging (it may not be too painful if the project is small enough that you can tackle it piece by piece).
A postback is triggered after a form submission, so it's related to a client action... take a look here for an explanation: ASP.NET - Is it possible to trigger a postback from server code?
and here for a solution: http://forums.asp.net/t/928411.aspx/1
The only difference between innerText
and innerHTML
is that innerText
insert string as it is into the element, while innerHTML
run it as html content.
const ourstring = 'My name is <b class="name">Satish chandra Gupta</b>.';_x000D_
document.getElementById('innertext').innerText = ourstring;_x000D_
document.getElementById('innerhtml').innerHTML = ourstring;
_x000D_
.name{_x000D_
color:red;_x000D_
}
_x000D_
<h3>Inner text below. It inject string as it is into the element.</h3>_x000D_
<div id="innertext"></div>_x000D_
<br />_x000D_
<h3>Inner html below. It renders the string into the element and treat as part of html document.</h3>_x000D_
<div id="innerhtml"></div>
_x000D_
I'm not aware of anything like a single table that lets you compare all of them in at one glance (I'm not sure such a table would even be feasible).
Of course the ISO standard document enumerates the complexity requirements in detail, sometimes in various rather readable tables, other times in less readable bullet points for each specific method.
Also the STL library reference at http://www.cplusplus.com/reference/stl/ provides the complexity requirements where appropriate.
HTML:
<input type="checkbox" id="attraction" checked="checked" onchange="updateMap()">poi.attraction</input>
JavaScript:
function updateMap() {
map.setOptions({'styles': getStyles() });
}
function getStyles() {
var styles = [];
for (var i=0; i < types.length; i++) {
var style = {};
var type = types[i];
var enabled = document.getElementById(type).checked;
style['featureType'] = 'poi.' + type;
style['elementType'] = 'labels';
style['stylers'] = [{'visibility' : (enabled ? 'on' : 'off') }];
styles.push(style);
}
return styles;
}
To add my grain of sand here: if an element resides behind a fixed div it will be considered as not visible and you won't be able to click it; this happened to me recently and i solved it executing a script as recommended above, which does:
document.evaluate("<xpath locator for element to be clicked>", document, null, XPathResult.ANY_TYPE, null).iterateNext().click()", locator);
I've just put together what you may be looking for: http://www.graphdracula.net
It's JavaScript with directed graph layouting, SVG and you can even drag the nodes around. Still needs some tweaking, but is totally usable. You create nodes and edges easily with JavaScript code like this:
var g = new Graph();
g.addEdge("strawberry", "cherry");
g.addEdge("cherry", "apple");
g.addEdge("id34", "cherry");
I used the previously mentioned Raphael JS library (the graffle example) plus some code for a force based graph layout algorithm I found on the net (everything open source, MIT license). If you have any remarks or need a certain feature, I may implement it, just ask!
You may want to have a look at other projects, too! Below are two meta-comparisons:
SocialCompare has an extensive list of libraries, and the "Node / edge graph" line will filter for graph visualization ones.
DataVisualization.ch has evaluated many libraries, including node/graph ones. Unfortunately there's no direct link so you'll have to filter for "graph":
Here's a list of similar projects (some have been already mentioned here):
vis.js supports many types of network/edge graphs, plus timelines and 2D/3D charts. Auto-layout, auto-clustering, springy physics engine, mobile-friendly, keyboard navigation, hierarchical layout, animation etc. MIT licensed and developed by a Dutch firm specializing in research on self-organizing networks.
Cytoscape.js - interactive graph analysis and visualization with mobile support, following jQuery conventions. Funded via NIH grants and developed by by @maxkfranz (see his answer below) with help from several universities and other organizations.
The JavaScript InfoVis Toolkit - Jit, an interactive, multi-purpose graph drawing and layout framework. See for example the Hyperbolic Tree. Built by Twitter dataviz architect Nicolas Garcia Belmonte and bought by Sencha in 2010.
D3.js Powerful multi-purpose JS visualization library, the successor of Protovis. See the force-directed graph example, and other graph examples in the gallery.
Plotly's JS visualization library uses D3.js with JS, Python, R, and MATLAB bindings. See a nexworkx example in IPython here, human interaction example here, and JS Embed API.
sigma.js Lightweight but powerful library for drawing graphs
jsPlumb jQuery plug-in for creating interactive connected graphs
Springy - a force-directed graph layout algorithm
Processing.js Javascript port of the Processing library by John Resig
JS Graph It - drag'n'drop boxes connected by straight lines. Minimal auto-layout of the lines.
RaphaelJS's Graffle - interactive graph example of a generic multi-purpose vector drawing library. RaphaelJS can't layout nodes automatically; you'll need another library for that.
JointJS Core - David Durman's MPL-licensed open source diagramming library. It can be used to create either static diagrams or fully interactive diagramming tools and application builders. Works in browsers supporting SVG. Layout algorithms not-included in the core package
mxGraph Previously commercial HTML 5 diagramming library, now available under Apache v2.0. mxGraph is the base library used in draw.io.
GoJS Interactive graph drawing and layout library
yFiles for HTML Commercial graph drawing and layout library
KeyLines Commercial JS network visualization toolkit
ZoomCharts Commercial multi-purpose visualization library
Syncfusion JavaScript Diagram Commercial diagram library for drawing and visualization.
Cytoscape Web Embeddable JS Network viewer (no new features planned; succeeded by Cytoscape.js)
Canviz JS renderer for Graphviz graphs. Abandoned in Sep 2013.
arbor.js Sophisticated graphing with nice physics and eye-candy. Abandoned in May 2012. Several semi-maintained forks exist.
jssvggraph "The simplest possible force directed graph layout algorithm implemented as a Javascript library that uses SVG objects". Abandoned in 2012.
jsdot Client side graph drawing application. Abandoned in 2011.
Protovis Graphical Toolkit for Visualization (JavaScript). Replaced by d3.
Moo Wheel Interactive JS representation for connections and relations (2008)
JSViz 2007-era graph visualization script
dagre Graph layout for JavaScript
Graphviz Sophisticated graph visualization language
Flare Beautiful and powerful Flash based graph drawing
NodeBox Python Graph Visualization
Cors can be a pain in the ass, but with this simple code you are Cors ONLY!!!! to to specified method
@CrossOrigin(origins="*")// in this line add your url and thats is all for spring boot side
@GetMapping("/some")
public String index() {
return "pawned cors!!!!";
}
Like a charm in spring boot 2.0.2
It is likely that you are running the python executable from /usr/bin (Apple version) instead of /usr/loca/bin (Brew version)
You can either
a) check your PATH variable
or
b) run brew doctor
or
c) run which python
to check if it is the case.
I also tried to update a component from a jsf backing bean/class
You need to do the following after manipulating the UI component:
FacesContext.getCurrentInstance().getPartialViewContext().getRenderIds().add(componentToBeRerendered.getClientId())
It is important to use the clientId instead of the (server-side) componentId!!
One very small nit to pick:
The RFC for email addresses allows the first part to include an "@" sign if it is quoted. Example:
"john@work"@myemployer.com
This is quite uncommon, but could happen. Theoretically, you should split on the last "@" symbol, not the first:
SELECT LEN(EmailField) - CHARINDEX('@', REVERSE(EmailField)) + 1
More information:
It's working for me:
<%= image_tag( root_url + "images/rss.jpg", size: "50x50", :alt => "rss feed") -%>
Something like gunzip using the -r flag?....
Travel the directory structure recursively. If any of the file names specified on the command line are directories, gzip will descend into the directory and compress all the files it finds there (or decompress them in the case of gunzip ).
You can also throw a std::system_error
as shown in the test code below. This method seems to produce more readable output than f.exception(...)
.
#include <exception> // <-- requires this
#include <fstream>
#include <iostream>
void process(const std::string& fileName) {
std::ifstream f;
f.open(fileName);
// after open, check f and throw std::system_error with the errno
if (!f)
throw std::system_error(errno, std::system_category(), "failed to open "+fileName);
std::clog << "opened " << fileName << std::endl;
}
int main(int argc, char* argv[]) {
try {
process(argv[1]);
} catch (const std::system_error& e) {
std::clog << e.what() << " (" << e.code() << ")" << std::endl;
}
return 0;
}
Example output (Ubuntu w/clang):
$ ./test /root/.profile
failed to open /root/.profile: Permission denied (system:13)
$ ./test missing.txt
failed to open missing.txt: No such file or directory (system:2)
$ ./test ./test
opened ./test
$ ./test $(printf '%0999x')
failed to open 000...000: File name too long (system:36)
There is a slightly simpler workaround that works with LINQ to Entities:
var result = from entry in table
where entry.something == value || (value == null && entry.something == null)
select entry;
This works becasuse, as AZ noticed, LINQ to Entities special cases x == null (i.e. an equality comparison against the null constant) and translates it to x IS NULL.
We are currently considering changing this behavior to introduce the compensating comparisons automatically if both sides of the equality are nullable. There are a couple of challenges though:
In any case, whether we get to work on this is going to depend greatly on the relative priority our customers assign to it. If you care about the issue, I encourage you to vote for it in our new Feature Suggestion site: https://data.uservoice.com.
function getCityState($zip, $blnUSA = true) {
$url = "http://maps.googleapis.com/maps/api/geocode/json?address=" . $zip . "&sensor=true";
$address_info = file_get_contents($url);
$json = json_decode($address_info);
$city = "";
$state = "";
$country = "";
if (count($json->results) > 0) {
//break up the components
$arrComponents = $json->results[0]->address_components;
foreach($arrComponents as $index=>$component) {
$type = $component->types[0];
if ($city == "" && ($type == "sublocality_level_1" || $type == "locality") ) {
$city = trim($component->short_name);
}
if ($state == "" && $type=="administrative_area_level_1") {
$state = trim($component->short_name);
}
if ($country == "" && $type=="country") {
$country = trim($component->short_name);
if ($blnUSA && $country!="US") {
$city = "";
$state = "";
break;
}
}
if ($city != "" && $state != "" && $country != "") {
//we're done
break;
}
}
}
$arrReturn = array("city"=>$city, "state"=>$state, "country"=>$country);
die(json_encode($arrReturn));
}
To list the tables you can also do:
SELECT name FROM sqlite_master
WHERE type='table';
The dependencies syntax is located at the Dependency Version Requirement Specification documentation. Here it is is for completeness:
Dependencies'
version
element define version requirements, used to compute effective dependency version. Version requirements have the following syntax:
1.0
: "Soft" requirement on 1.0 (just a recommendation, if it matches all other ranges for the dependency)[1.0]
: "Hard" requirement on 1.0(,1.0]
: x <= 1.0[1.2,1.3]
: 1.2 <= x <= 1.3[1.0,2.0)
: 1.0 <= x < 2.0[1.5,)
: x >= 1.5(,1.0],[1.2,)
: x <= 1.0 or x >= 1.2; multiple sets are comma-separated(,1.1),(1.1,)
: this excludes 1.1 (for example if it is known not to work in combination with this library)
In your case, you could do something like <version>[1.2.3,)</version>
For OP's terminal Cmder
there is an integration guide, also hinted in the VS Code docs.
If you want to use VS Code tasks and encounter problems after switch to Cmder
, there is an update to @khernand's answer. Copy this into your settings.json
file:
"terminal.integrated.shell.windows": "cmd.exe",
"terminal.integrated.env.windows": {
"CMDER_ROOT": "[cmder_root]" // replace [cmder_root] with your cmder path
},
"terminal.integrated.shellArgs.windows": [
"/k",
"%CMDER_ROOT%\\vendor\\bin\\vscode_init.cmd" // <-- this is the relevant change
// OLD: "%CMDER_ROOT%\\vendor\\init.bat"
],
The invoked file will open Cmder
as integrated terminal and switch to cmd
for tasks - have a look at the source here. So you can omit configuring a separate terminal in tasks.json
to make tasks work.
Starting with VS Code 1.38, there is also "terminal.integrated.automationShell.windows"
setting, which lets you set your terminal for tasks globally and avoids issues with Cmder
.
"terminal.integrated.automationShell.windows": "cmd.exe"
you could connect all the data you need from the file to a single string, and in the excel sheet seperate it with text to column. here is an example i did for same issue, enjoy:
Sub CP()
Dim ToolFile As String
Cells(3, 2).Select
For i = 0 To 5
r = ActiveCell.Row
ToolFile = Cells(r, 7).Value
On Error Resume Next
ActiveCell.Value = CP_getdatta(ToolFile)
'seperate data by "-"
Selection.TextToColumns Destination:=Range("C3"), DataType:=xlDelimited, _
TextQualifier:=xlDoubleQuote, ConsecutiveDelimiter:=False, Tab:=True, _
Semicolon:=False, Comma:=False, Space:=False, Other:=True, OtherChar _
:="-", FieldInfo:=Array(Array(1, 1), Array(2, 1)), TrailingMinusNumbers:=True
Cells(r + 1, 2).Select
Next
End Sub
Function CP_getdatta(ToolFile As String) As String
Workbooks.Open Filename:=ToolFile, UpdateLinks:=False, ReadOnly:=True
Range("A56000").Select
Selection.End(xlUp).Select
x = CStr(ActiveCell.Value)
ActiveCell.Offset(0, 20).Select
Selection.End(xlToLeft).Select
While IsNumeric(ActiveCell.Value) = False
ActiveCell.Offset(0, -1).Select
Wend
' combine data to 1 string
CP_getdatta = CStr(x & "-" & ActiveCell.Value)
ActiveWindow.Close False
End Function
Just Put your Database name,username,password (Where i marked ?) and table name.& Yuuppiii!.... you get all data from your main database (with column name)
<?php
function qry($q){
global $qry;
try {
$host = "?";
$dbname = "?";
$username = "?";
$password = "?";
$dbcon = new PDO("mysql:host=$host;
dbname=$dbname","$username","$password");
}
catch (Exception $e) {
echo "ERROR ".$e->getMEssage();
}
$qry = $dbcon->query($q);
$qry->setFetchMode(PDO:: FETCH_OBJ);
return $qry;
}
echo "<table>";
/*Get Colums Names in table row */
$columns = array();
$qry1= qry("SHOW COLUMNS FROM Your_table_name");
while (@$column = $qry1->fetch()->Field) {
echo "<td>".$column."</td>";
$columns[] = $column;
}
echo "<tr>";
/* Fetch all data into a html table * /
$qry2 = qry("SELECT * FROM Your_table_name");
while ( $details = $qry2->fetch()) {
echo "<tr>";
foreach ($columns as $c_name) {
echo "<td>".$details->$c_name."</td>";
}
}
echo "</table>";
?>
Try this and see if you get what you are aiming for:
<div id='page' style='width: 600px'>_x000D_
<h1 style='border:2px black solid; font-size:42px; width:fit-content; width:-webkit-fit-content; width:-moz-fit-content;'>Title</h1>_x000D_
</div>
_x000D_
If you wanted to learn some GUI, may be tic tac toe is good. Even for console, I still find that is a fun problem. Not challenging but a little bit fun. Later you can advance some other games or port that game to GUI, client server or java applet for the web. I think if you want to learn something and get fun as well, game is a good choice:)
Your script is blocked from executing due to the execution policy.
You need to run PowerShell as administrator and set it on the client PC to Unrestricted. You can do that by calling Invoke with:
Set-ExecutionPolicy Unrestricted
there are two properties of urllib.URLopener()
namely:
addheaders = [('User-Agent', 'Python-urllib/1.17'), ('Accept', '*/*')]
and
version = 'Python-urllib/1.17'
.
To fool the website you need to changes both of these values to an accepted User-Agent. for e.g.
Chrome browser : 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.149 Safari/537.36'
Google bot : 'Googlebot/2.1'
like this
import urllib
page_extractor=urllib.URLopener()
page_extractor.addheaders = [('User-Agent', 'Googlebot/2.1'), ('Accept', '*/*')]
page_extractor.version = 'Googlebot/2.1'
page_extractor.retrieve(<url>, <file_path>)
changing just one property does not work because the website marks it as a suspicious request.
Yes I believe it's possible but you might have to implement your own classloader. I have never done it but that is the path I would probably look at.
I used to do the same until I started using libraries that are compiled differently depending on the environment such as PyCrypto. My PyCrypto mac wouldn't work on Cygwin wouldn't work on Ubuntu.
It becomes an utter nightmare to manage the repository.
Either way I found it easier to manage the pip freeze & a requirements file than having it all in git. It's cleaner too since you get to avoid the commit spam for thousands of files as those libraries get updated...
As a side-note, you can enable/disable individual warnings using #pragma
. You can have a look at the documentation here
From the documentation:
// pragma_warning.cpp
// compile with: /W1
#pragma warning(disable:4700)
void Test() {
int x;
int y = x; // no C4700 here
#pragma warning(default:4700) // C4700 enabled after Test ends
}
int main() {
int x;
int y = x; // C4700
}
Try updating the line to:
ocr.Init(@"C:\", "eng", false); // the path here should be the parent folder of tessdata
Unix shells operate a series of transformations on each line of input before executing them. For most shells it looks something like this (taken from the bash
manpage):
Using $cmd
directly gets it replaced by your command during the parameter expansion phase, and it then undergoes all following transformations.
Using eval "$cmd"
does nothing until the quote removal phase, where $cmd
is returned as is, and passed as a parameter to eval
, whose function is to run the whole chain again before executing.
So basically, they're the same in most cases, and differ when your command makes use of the transformation steps up to parameter expansion. For example, using brace expansion:
$ cmd="echo foo{bar,baz}"
$ $cmd
foo{bar,baz}
$ eval "$cmd"
foobar foobaz
If you want to have bare run
command in gdb
to execute your program with redirections and arguments, you can use set args
:
% gdb ./a.out
(gdb) set args arg1 arg2 <file
(gdb) run
I was unable to achieve the same behaviour with --args
parameter, gdb
fiercely escapes the redirections, i.e.
% gdb --args echo 1 2 "<file"
(gdb) show args
Argument list to give program being debugged when it is started is "1 2 \<file".
(gdb) run
...
1 2 <file
...
This one actually redirects the input of gdb itself, not what we really want here
% gdb --args echo 1 2 <file
zsh: no such file or directory: file
You can do one thing.
like:- In appsettings.config ->
<appSettings>
<add key="SqlCommandTimeOut" value="240"/>
</appSettings>
In Code ->
command.CommandTimeout = Convert.ToInt32(System.Configuration.ConfigurationManager.AppSettings["SqlCommandTimeOut"]);
That should do it.
Note:- I faced most of the timeout issues when I used SqlHelper class from microsoft application blocks. If you have it in your code and are facing timeout problems its better you use sqlcommand and set its timeout as described above. For all other scenarios sqlhelper should do fine. If your client is ok with waiting a little longer than what sqlhelper class offers you can go ahead and use the above technique.
example:- Use this -
SqlCommand cmd = new SqlCommand(completequery);
cmd.CommandTimeout = Convert.ToInt32(System.Configuration.ConfigurationManager.AppSettings["SqlCommandTimeOut"]);
SqlConnection con = new SqlConnection(sqlConnectionString);
SqlDataAdapter adapter = new SqlDataAdapter();
con.Open();
adapter.SelectCommand = new SqlCommand(completequery, con);
adapter.Fill(ds);
con.Close();
Instead of
DataSet ds = new DataSet();
ds = SqlHelper.ExecuteDataset(sqlConnectionString, CommandType.Text, completequery);
Update: Also refer to @Triynko answer below. It is important to check that too.
You can write a function to return array of occurrence positions, Java has String.regionMatches function which is quite handy
public static ArrayList<Integer> occurrencesPos(String str, String substr) {
final boolean ignoreCase = true;
int substrLength = substr.length();
int strLength = str.length();
ArrayList<Integer> occurrenceArr = new ArrayList<Integer>();
for(int i = 0; i < strLength - substrLength + 1; i++) {
if(str.regionMatches(ignoreCase, i, substr, 0, substrLength)) {
occurrenceArr.add(i);
}
}
return occurrenceArr;
}
This is just a sample code, but it may help you get on your way:
Public Sub testIt()
Workbooks("Workbook2").Activate
ActiveWorkbook.Sheets("Sheet2").Activate
ActiveSheet.Range("B3").Select
ActiveCell.EntireRow.Insert
End Sub
I am assuming that you can open the book (called Workbook2
in the example).
I think (but I'm not sure) you can squash all this in a single line of code:
Workbooks("Workbook2").Sheets("Sheet2").Range("B3").EntireRow.Insert
This way you won't need to activate the workbook (or sheet or cell)... Obviously, the book has to be open.
I used to think that creating the objects at runtime would be the better approach. I'm less certain now, since you do lose some useful features, though it may be worth it regardless simply to prevent newbie confusion. The disadvantages of doing so are:
1. Performance
def foo(arg=something_expensive_to_compute())):
...
If call-time evaluation is used, then the expensive function is called every time your function is used without an argument. You'd either pay an expensive price on each call, or need to manually cache the value externally, polluting your namespace and adding verbosity.
2. Forcing bound parameters
A useful trick is to bind parameters of a lambda to the current binding of a variable when the lambda is created. For example:
funcs = [ lambda i=i: i for i in range(10)]
This returns a list of functions that return 0,1,2,3... respectively. If the behaviour is changed, they will instead bind i
to the call-time value of i, so you would get a list of functions that all returned 9
.
The only way to implement this otherwise would be to create a further closure with the i bound, ie:
def make_func(i): return lambda: i
funcs = [make_func(i) for i in range(10)]
3. Introspection
Consider the code:
def foo(a='test', b=100, c=[]):
print a,b,c
We can get information about the arguments and defaults using the inspect
module, which
>>> inspect.getargspec(foo)
(['a', 'b', 'c'], None, None, ('test', 100, []))
This information is very useful for things like document generation, metaprogramming, decorators etc.
Now, suppose the behaviour of defaults could be changed so that this is the equivalent of:
_undefined = object() # sentinel value
def foo(a=_undefined, b=_undefined, c=_undefined)
if a is _undefined: a='test'
if b is _undefined: b=100
if c is _undefined: c=[]
However, we've lost the ability to introspect, and see what the default arguments are. Because the objects haven't been constructed, we can't ever get hold of them without actually calling the function. The best we could do is to store off the source code and return that as a string.
<?php if ($foo) { ?>
<div class="mydiv">Condition is true</div>
<?php } else { ?>
<div class="myotherdiv">Condition is false</div>
<?php } ?>
There are ways of paying less to get an application, developed than paying the going rate, but very often you get what you pay for - inexperienced developers who leave you with a mess of spaghetti code that's impossible to maintain, or experienced developers with whom you have to communicate across a cultural and language gap.
Developing an app like Twitterific is not easy. It's an extraordinarily polished app with a lot of attention to detail that most people - indeed many developers - would fail to notice or realize the effort behind. You may be able to get a Twitter iPhone client written for $3500 or $5000 by going offshore or by being willing to "work with inexperienced developers", but you're not going to get Twitterific for that, and it's doubtful you'd get even a halfway decent application for that amount.
And you likely will end up spending a lot of time managing the process, going back and forth on requirements, and fighting to get what you really want instead of what they want to give you.
There's also a risk with "cut-rate" development, whether it's offshore or just using inexperienced developers - you may very well end up with something you can't use, or something that gets 1 star ratings because it crashes or behaves erratically. You might find the occasional underpriced gem of a developer, but they won't stay underpriced for long given the sheer demand in this market right now.
By virtue of my books and blog, people often reach out to me when they need help with their iPhone applications. I get, on average, 4 or 5 inquiries a month from people asking for help fixing applications they had developed either over-seas or by inexperienced developers here in the States. In most cases, I end up having to tell them they'd be better off throwing their code out and starting over with a developer who knows what they're doing rather than trying to fix the code they bought on the cheap. If they insist on trying to "fix" what they have, I decline the work.
As Angular moved on with the release, I faced this same issue. As per version 2.1.0 the Route
interface looks like:
export interface Route {
path?: string;
pathMatch?: string;
component?: Type<any>;
redirectTo?: string;
outlet?: string;
canActivate?: any[];
canActivateChild?: any[];
canDeactivate?: any[];
canLoad?: any[];
data?: Data;
resolve?: ResolveData;
children?: Route[];
loadChildren?: LoadChildren;
}
So my solutions was the following:
const routes: Routes = [
{ path: '', component: HomeComponent },
{ path: '404', component: NotFoundComponent },
{ path: '**', redirectTo: '404' }
];
DateTime.ParseExact(input,"yyyyMMdd HH:mm",null);
assuming you meant to say that minutes followed the hours, not seconds - your example is a little confusing.
The ParseExact documentation details other overloads, in case you want to have the parse automatically convert to Universal Time or something like that.
As @Joel Coehoorn mentions, there's also the option of using TryParseExact, which will return a Boolean value indicating success or failure of the operation - I'm still on .Net 1.1, so I often forget this one.
If you need to parse other formats, you can check out the Standard DateTime Format Strings.
You can do it with IE 'sometimes' as I have done this for an internal application on an intranet which is IE only. Try the following:
function GetComputerName() {
try {
var network = new ActiveXObject('WScript.Network');
// Show a pop up if it works
alert(network.computerName);
}
catch (e) { }
}
It may or may not require some specific security setting setup in IE as well to allow the browser to access the ActiveX object.
Here is a link to some more info on WScript: More Information
Don't Get confused, Use the below simple query to get all the databases,
select * from sys.databases
If u need only the User defined databases;
select * from sys.databases WHERE name NOT IN ('master', 'tempdb', 'model', 'msdb');
Some of the System database names are (resource,distribution,reportservice,reportservicetempdb) just insert it into the query. If u have the above db's in your machine as default.
You can just use top
It will display everything running on your OSX
Programming to an interface is saying, "I need this functionality and I don't care where it comes from."
Consider (in Java), the List
interface versus the ArrayList
and LinkedList
concrete classes. If all I care about is that I have a data structure containing multiple data items that I should access via iteration, I'd pick a List
(and that's 99% of the time). If I know that I need constant-time insert/delete from either end of the list, I might pick the LinkedList
concrete implementation (or more likely, use the Queue interface). If I know I need random access by index, I'd pick the ArrayList
concrete class.
If you want the column names only, you can do:
List<string> columns = new List<string>();
using (SqlDataReader reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly))
{
DataTable dt = reader.GetSchemaTable();
foreach (DataRow row in dt.Rows)
{
columns.Add(row.Field<String>("ColumnName"));
}
}
But if you only need one row, I like my AdoHelper addition. This addition is great if you have a single line query and you don't want to deal with data table in you code. It's returning a case insensitive dictionary of column names and values.
public static Dictionary<string, string> ExecuteCaseInsensitiveDictionary(string query, string connectionString, Dictionary<string, string> queryParams = null)
{
Dictionary<string, string> CaseInsensitiveDictionary = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
try
{
using (SqlConnection conn = new SqlConnection(connectionString))
{
conn.Open();
using (SqlCommand cmd = new SqlCommand())
{
cmd.Connection = conn;
cmd.CommandType = CommandType.Text;
cmd.CommandText = query;
// Add the parameters for the SelectCommand.
if (queryParams != null)
foreach (var param in queryParams)
cmd.Parameters.AddWithValue(param.Key, param.Value);
using (SqlDataReader reader = cmd.ExecuteReader())
{
DataTable dt = new DataTable();
dt.Load(reader);
foreach (DataRow row in dt.Rows)
{
foreach (DataColumn column in dt.Columns)
{
CaseInsensitiveDictionary.Add(column.ColumnName, row[column].ToString());
}
}
}
}
conn.Close();
}
}
catch (Exception ex)
{
throw ex;
}
return CaseInsensitiveDictionary;
}
just add 'checked="checked"' in the correct radio button that you would like it to be default on. As example you could use php quick if notation to add that in:
<input type="radio" name="sex" value="Male" size="17" <?php echo($isMale?'checked="checked"':''); ?>>Male
<input type="radio" name="sex" value="Female" size="17" <?php echo($isFemale?'checked="checked"':''); ?>>Female
in this example $isMale & $isFemale is boolean values that you assign based on the value from your database.
In C char
gets promoted to int
in expressions. That pretty much explains every question, if you think about it.
Source: The C Programming Language by Brian W.Kernighan and Dennis M.Ritchie
A must read if you want to learn C.
Also see this stack overflow page, where people much more experienced then me can explain it much better then I ever can.
The syntax you have used is incorrect. The query should be something like:
SELECT column_name(s) FROM tablename WHERE id = (SELECT MAX(id) FROM tablename)
You may also want to use this to detect HTML 5 audio in some cases:
http://diveintohtml5.ep.io/everything.html
HTML 5 JS Detect function
function supportsAudio()
{
var a = document.createElement('audio');
return !!(a.canPlayType && a.canPlayType('audio/mpeg;').replace(/no/, ''));
}
http://constc.blogspot.com/2008/07/undeclared-undefined-null-in-javascript.html
Depends on how specific you want the test to be. You could maybe get away with
if(page_name){ string += "&page_name=" + page_name; }
I have tried your code and found that if we put background-image: url(image.png);
in btn-pToolName
and change color:#000000
. it displays the image at background.
my test css:
.btn-pTool {
margin: 0;
padding: 0;
}
.btn-pToolName {
text-align: center;
width: 26px;
height: 190px;
display: block;
color: #000000;
text-decoration: none;
font-family: Arial, Helvetica, sans-serif;
font-weight: bold;
font-size: 1em;
line-height: 32px;
background-image: url(defalut.png);
background-repeat: no-repeat;
}
and test html:
<div class="pToolContainer">
<span class="btn-pTool"><a class="btn-pToolName" href="#">adad</a></span>
<div class="pToolSlidePanel"></div>
</div>
Hope this helps.
You can use not(expression)
function
not()
is a function in xpath (as opposed to an operator)
Example:
//a[not(contains(@id, 'xx'))]
OR
expression != true()
In 7.3 just enable Properties/Build/Package/Copy Dependent Libraries and main class will be added to manifest when building depending on selected target.
Try to install Integrated Native Developer Experience
" Is a cross-architecture productivity suite that provides developers with tools, support, and IDE integration to create high-performance C++/Java* applications for Windows* on Intel® architecture, OS X on Intel® architecture and Android* on ARM* and Intel® architecture."
If you mean that you wanna attach this to your panel (Window that you are working with).
then you have to create an inner class that extend from IKeyListener interface and then add that method in to the class.
Then, attach that class to you panel by: this.addKeyListener(new subclass());
Lately I've come across yet another way of putting JS code inside PHP code. It involves Heredoc PHP syntax. I hope it'll be helpful for someone.
<?php
$script = <<< JS
$(function() {
// js code goes here
});
JS;
?>
After closing the heredoc construction the $script variable contains your JS code that can be used like this:
<script><?= $script ?></script>
The profit of using this way is that modern IDEs recognize JS code inside Heredoc and highlight it correctly unlike using strings. And you're still able to use PHP variables inside of JS code.
np.array(M).ravel()
If you care for speed; But if you care for memory:
np.asarray(M).ravel()
this.$('#datepicker').datepicker({minDate: 1});
minDate:0
- Enable dates in the calender from the current date. MinDate:1
enable dates in the calender currentDate+1
To Restrict date between from tomorrow and the same day next month u need to give something like
$( "#datepicker" ).datepicker({ minDate: 1, maxDate: "+1M" });
You can check if string contains numbers only:
Regex.IsMatch(myStringVariable, @"^-?\d+$")
But number can be bigger than Int32.MaxValue
or less than Int32.MinValue
- you should keep that in mind.
Another option - create extension method and move ugly code there:
public static bool IsInteger(this string s)
{
if (String.IsNullOrEmpty(s))
return false;
int i;
return Int32.TryParse(s, out i);
}
That will make your code more clean:
if (myStringVariable.IsInteger())
// ...
I usually do this by creating a htc file (ex. last-child.htc):
<attach event="ondocumentready" handler="initializeBehaviours" />
<script type="text/javascript">
function initializeBehaviours() {
this.lastChild.className += ' last-child';
}
</script>
And call it from my IE conditional css file with:
ul { behavior: url("/javascripts/htc/last-child.htc"); }
Whereas in my main css file I got:
ul li:last-child,
ul li.last-child {
/* some code */
}
Another solution (albeit slower) that uses your existent css markup without defining any .last-child class would be Dean Edwards ie7.js library.
Trimming whitespace with the null-coalescing operator:
if (!str?.trim()) {
// do something...
}
Found some different answers that I combined to solve simulair problem:
CREATE TABLE nummer (ID INTEGER PRIMARY KEY, num, text, text2);
WITH RECURSIVE
for(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM for WHERE i < 1000000)
INSERT INTO nummer SELECT i, i+1, "text" || i, "otherText" || i FROM for;
Adds 1 miljon rows with
Project that captures the desktop image with DXGI duplication. Saves the captured image to the file in different image formats (*.bmp; *.jpg; *.tif).
This sample is written in C++. You also need some experience with DirectX (D3D11, D2D1).
What the Application Can Do
What about using the XML data type instead of passing an array. I find that a better solution and works well in SQL 2005
You have root, but you still need to remount /system to be read/write
$ adb shell
$ su
$ mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
Go here for more information: Mount a filesystem read-write.
The Expires entity-header field gives the date/time after which the response is considered stale.The Cache-control:maxage field gives the age value (in seconds) bigger than which response is consider stale.
Althought above header field give a mechanism to client to decide whether to send request to the server. In some condition, the client send a request to sever and the age value of response is bigger then the maxage value ,dose it means server needs to send the resource to client? Maybe the resource never changed.
In order to resolve this problem, HTTP1.1 gives last-modifided head. The server gives the last modified date of the response to client. When the client need this resource, it will send If-Modified-Since head field to server. If this date is before the modified date of the resouce, the server will sends the resource to client and gives 200 code.Otherwise,it will returns 304 code to client and this means client can use the resource it cached.
There is no way to do pure text search in whole work workspace/project via a shortcut that I know of (and it is a PITA), but this will find references in the workspace:
This is my approach:
function getRealUserIp(){
switch(true){
case (!empty($_SERVER['HTTP_X_REAL_IP'])) : return $_SERVER['HTTP_X_REAL_IP'];
case (!empty($_SERVER['HTTP_CLIENT_IP'])) : return $_SERVER['HTTP_CLIENT_IP'];
case (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) : return $_SERVER['HTTP_X_FORWARDED_FOR'];
default : return $_SERVER['REMOTE_ADDR'];
}
}
How to use:
$ip = getRealUserIp();
I used Anaconda environment and had the same issue. I tried all the aforementioned approaches and, alas, it didn't help me. Accumulated the suggestions, here the way which helped me:
Delete all NumPy folders in the virtual environment or in the system if you don't use a virtual environment, for example in my case:
~/home/anaconda3/envs//lib/python/site-packages/numpy
~/home/anaconda3/envs//lib/python/site-packages/numpy.libs
~/home/anaconda3/envs//lib/python/site-packages/numpy-.dist-info
Install new Numpy with:
pip install numpy -U
Hope, it could help in the same case
Warning: Don't forget to clear the user data again. Otherwise this key will be pushed on every instance start. Step-by-step instructions.
#cloud-config
bootcmd:
- echo 'ssh-rsa AAAAB3Nz...' > /root/.ssh/authorized_keys
this piece of code can do its job
UPDATE TOP (100) table_name set column_name = value;
If you want to show the last 100 records, you can use this if you need.
With OrnekWith
as
(
Select Top(100) * from table_name Order By ID desc
)
Update table_name Set column_name = value;
As described by @Magne, the error PG::ConnectionBad - could not connect to server: Connection refused
can be presented following a major/minor version upgrade (e.g. 9.5 -> 9.6
or 9 -> 10
) of PostgreSQL.
I got this error after having run brew upgrade postgresql
after the release of PostgreSQL version 9.6. The problem is that major/minor version upgrades require additional steps to migrate old date to the new version.
How to check if this is your problem
You can check if this is the problem by checking the latest brew formula PostgreSQL version installed with homebrew...
$ brew info postgresql
/usr/local/Cellar/postgresql/9.5.4_1 (3,147 files, 35M)
Poured from bottle on 2016-10-14 at 13:33:28
/usr/local/Cellar/postgresql/9.6.1 (3,242 files, 36.4M) *
Poured from bottle on 2017-02-06 at 12:41:00
...and then comparing it to the current PG_VERSION
$ cat /usr/local/var/postgres/PG_VERSION
9.5
If the PG_VERSION is less than the latest brew formula and the difference is a major/minor version change, then this is probably your problem.
How to fix (i.e. how to upgrade the data)
Instructions below are for an upgrade from 9.5 to 9.6. Change the version numbers as appropriate for your own upgrade
Step 1. Make sure PostgreSQL is switched off:
$ launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
# or, with Homebrew...
$ brew services stop postgresql
Step 2. Make a new pristine database:
$ initdb /usr/local/var/postgres9.6 -E utf8
Step 3. Check what the old and new binary versions are:
$ ls /usr/local/Cellar/postgresql/
9.5.3 9.5.4 9.6.1
Note that in this example I am upgrading from 9.5.4 binary to 9.6.1 binary
Step 4. Migrate the current data to the new database using the pg_upgrade utility.
$ pg_upgrade \
-d /usr/local/var/postgres \
-D /usr/local/var/postgres9.6 \
-b /usr/local/Cellar/postgresql/9.5.4/bin/ \
-B /usr/local/Cellar/postgresql/9.6.1/bin/ \
-v
-d
flag specifies the current data directory-D
flag specifies the new data directory to be created-b
specifies the old binary-B
specifies the new binary we're upgrading toStep 5. Move the old data directory out of the way
$ mv /usr/local/var/postgres /usr/local/var/postgres9.5
Step 6. Move newly created data directory to where PostgreSQL expects it to be
$ mv /usr/local/var/postgres9.6 /usr/local/var/postgres
Step 7. Start PostgreSQL again
$ launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
# or, if you're running a current version of Homebrew
$ brew services start postgresql
Step 8. If you’re using the pg gem for Rails, you should recompile by uninstalling and reinstalling the gem (skip this step if you're not using the pg gem)
$ gem uninstall pg
$ gem install pg
Step 9.(optional) After you've reassured yourself that everything is working OK, you can run regain some disk space with the following command:
brew cleanup postgresql
...and if you're feeling really brave you can delete the old PostgreSQL data directory with the following command
rm -rf /usr/local/var/postgres9.5/
(This answer is based on an excellent blog post https://keita.blog/2016/01/09/homebrew-and-postgresql-9-5/ with some additions)
You can work around that via a Live Template. Go to Settings -> Live Template, click the "Add"-Button (green plus on the right).
In the "Abbreviation" field, enter the string that should activate the template (e.g. @a
), and in the "Template Text" area enter the string to complete (e.g. @author - My Name
). Set the "Applicable context" to Java (Comments only maybe) and set a key to complete (on the right).
I tested it and it works fine, however IntelliJ seems to prefer the inbuild templates, so "@a + Tab" only completes "author". Setting the completion key to Space worked however.
To change the user name that is automatically inserted via the File Templates (when creating a class for example), can be changed by adding
-Duser.name=Your name
to the idea.exe.vmoptions or idea64.exe.vmoptions (depending on your version) in the IntelliJ/bin directory.
Restart IntelliJ
Given that commonly 1 = true
and 0 = false
, all you need to do is count the number of rows, and cast to a boolean
.
Hence, your posted code only needs a COUNT()
function added:
SELECT CAST(COUNT(1) AS BIT) AS Expr1
FROM [User]
WHERE (UserID = 20070022)
foreach((array)$items as $item) {}
The answer is NEVER! (unless you really know what you're doing)
9/10 times the solution can be resolved with a proper understanding of encoding/decoding.
1/10 people have an incorrectly defined locale or environment and need to set:
PYTHONIOENCODING="UTF-8"
in their environment to fix console printing problems.
(struck through to avoid re-use) changes the default encoding/decoding used whenever Python 2.x needs to convert a Unicode() to a str() (and vice-versa) and the encoding is not given. I.e:sys.setdefaultencoding("utf-8")
str(u"\u20AC")
unicode("€")
"{}".format(u"\u20AC")
In Python 2.x, the default encoding is set to ASCII and the above examples will fail with:
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 0: ordinal not in range(128)
(My console is configured as UTF-8, so "€" = '\xe2\x82\xac'
, hence exception on \xe2
)
or
UnicodeEncodeError: 'ascii' codec can't encode character u'\u20ac' in position 0: ordinal not in range(128)
will allow these to work for me, but won't necessarily work for people who don't use UTF-8. The default of ASCII ensures that assumptions of encoding are not baked into codesys.setdefaultencoding("utf-8")
also has a side effect of appearing to fix sys.setdefaultencoding("utf-8")
sys.stdout.encoding
, used when printing characters to the console. Python uses the user's locale (Linux/OS X/Un*x) or codepage (Windows) to set this. Occasionally, a user's locale is broken and just requires PYTHONIOENCODING
to fix the console encoding.
Example:
$ export LANG=en_GB.gibberish
$ python
>>> import sys
>>> sys.stdout.encoding
'ANSI_X3.4-1968'
>>> print u"\u20AC"
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\u20ac' in position 0: ordinal not in range(128)
>>> exit()
$ PYTHONIOENCODING=UTF-8 python
>>> import sys
>>> sys.stdout.encoding
'UTF-8'
>>> print u"\u20AC"
€
People have been developing against Python 2.x for 16 years on the understanding that the default encoding is ASCII. UnicodeError
exception handling methods have been written to handle string to Unicode conversions on strings that are found to contain non-ASCII.
From https://anonbadger.wordpress.com/2015/06/16/why-sys-setdefaultencoding-will-break-code/
def welcome_message(byte_string):
try:
return u"%s runs your business" % byte_string
except UnicodeError:
return u"%s runs your business" % unicode(byte_string,
encoding=detect_encoding(byte_string))
print(welcome_message(u"Angstrom (Å®)".encode("latin-1"))
Previous to setting defaultencoding this code would be unable to decode the “Å” in the ascii encoding and then would enter the exception handler to guess the encoding and properly turn it into unicode. Printing: Angstrom (Å®) runs your business. Once you’ve set the defaultencoding to utf-8 the code will find that the byte_string can be interpreted as utf-8 and so it will mangle the data and return this instead: Angstrom (U) runs your business.
Changing what should be a constant will have dramatic effects on modules you depend upon. It's better to just fix the data coming in and out of your code.
While the setting of defaultencoding to UTF-8 isn't the root cause in the following example, it shows how problems are masked and how, when the input encoding changes, the code breaks in an unobvious way: UnicodeDecodeError: 'utf8' codec can't decode byte 0x80 in position 3131: invalid start byte
This looks like a CSV file, so you could use the python csv module to read it. For example:
import csv
crimefile = open(fileName, 'r')
reader = csv.reader(crimefile)
allRows = [row for row in reader]
Using the csv module allows you to specify how things like quotes and newlines are handled. See the documentation I linked to above.
I think you should add style="background:white;" to make looks like it is writable
<input type="text" size="23" name="dateMonthly" id="dateMonthly" readonly="readonly" style="background:white;"/>
I second that.
Dex2jar will generate a WORKING jar, which you can add as your project source, with the xmls you got from apktool.
However, JDGUI generates .java files which have ,more often than not, errors.
It has got something to do with code obfuscation I guess.
Its advantages are that it simplifies the usage of WebSockets as you described in #2, and probably more importantly it provides fail-overs to other protocols in the event that WebSockets are not supported on the browser or server. I would avoid using WebSockets directly unless you are very familiar with what environments they don't work and you are capable of working around those limitations.
This is a good read on both WebSockets and Socket.IO.
There are a few examples here
It's based off this answer, but I added one to the list to make a design that is even more minimal
select.moreMinimal {
background-color: inherit;
display: inline-block;
font: inherit;
padding: 0 2.2em 0 1em;
margin: 0;
cursor: pointer;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
-webkit-appearance: none;
-moz-appearance: none;
}
select.moreMinimal {
background-image:
linear-gradient(45deg, transparent 50%, gray 50%),
linear-gradient(135deg, gray 50%, transparent 50%);
background-position:
calc(100% - 20px),
calc(100% - 15px);
background-size:
5px 5px,
5px 5px;
background-repeat: no-repeat;
}
//TODO: Probably shouldn't be focus, cause when you click it again it's still green
select.moreMinimal:focus {
background-image:
linear-gradient(45deg, green 50%, transparent 50%),
linear-gradient(135deg, transparent 50%, green 50%);
background-position:
calc(100% - 15px),
calc(100% - 20px);
background-size:
5px 5px,
5px 5px;
background-repeat: no-repeat;
border-color: green;
outline: 0;
}
I had the same problem, Of course there was a little difference. The story was that when I was removing the below line:
<mvc:resources mapping="/resources/**" location="classpath:/resources/" />
Everything was OK but in presence of that line the same error raise.
After some trial and error I found I have to add the below line to my spring application context file:
<mvc:annotation-driven />
Hope it helps!
For iOS SWift 4
button.layer.cornerRadius = 25;
button.layer.masksToBounds = true;
If you don't want to use dangerouslySetInnerHTML then you can use the below mentioned solution
var Iframe = React.createClass({
render: function() {
return(
<div>
<iframe src={this.props.src} height={this.props.height} width={this.props.width}/>
</div>
)
}
});
ReactDOM.render(
<Iframe src="http://plnkr.co/" height="500" width="500"/>,
document.getElementById('example')
);
here live demo is available Demo
There was made some changes to the select2 events names (I think on v. 4 and later) so the '-' is changed into this ':'.
See the next examples:
$('#select').on("select2:select", function(e) {
//Do stuff
});
You can check all the events at the 'select2' plugin site: select2 Events
I had to use a HTTP connection, because on HTTPS there is default file size limit.
curl -i -X 'POST' -F 'file=@/home/testeincremental.xlsx' 'http://example.com/upload.aspx?user=example&password=example123&type=XLSX'
Here's a C# function:
public static void change(int money, List<int> coins, List<int> combination)
{
if(money < 0 || coins.Count == 0) return;
if (money == 0)
{
Console.WriteLine((String.Join("; ", combination)));
return;
}
List<int> copy = new List<int>(coins);
copy.RemoveAt(0);
change(money, copy, combination);
combination = new List<int>(combination) { coins[0] };
change(money - coins[0], coins, new List<int>(combination));
}
Use it like this:
change(100, new List<int>() {5, 10, 25}, new List<int>());
It prints:
25; 25; 25; 25
10; 10; 10; 10; 10; 25; 25
10; 10; 10; 10; 10; 10; 10; 10; 10; 10
5; 10; 10; 25; 25; 25
5; 10; 10; 10; 10; 10; 10; 10; 25
5; 5; 10; 10; 10; 10; 25; 25
5; 5; 10; 10; 10; 10; 10; 10; 10; 10; 10
5; 5; 5; 10; 25; 25; 25
5; 5; 5; 10; 10; 10; 10; 10; 10; 25
5; 5; 5; 5; 10; 10; 10; 25; 25
5; 5; 5; 5; 10; 10; 10; 10; 10; 10; 10; 10
5; 5; 5; 5; 5; 25; 25; 25
5; 5; 5; 5; 5; 10; 10; 10; 10; 10; 25
5; 5; 5; 5; 5; 5; 10; 10; 25; 25
5; 5; 5; 5; 5; 5; 10; 10; 10; 10; 10; 10; 10
5; 5; 5; 5; 5; 5; 5; 10; 10; 10; 10; 25
5; 5; 5; 5; 5; 5; 5; 5; 10; 25; 25
5; 5; 5; 5; 5; 5; 5; 5; 10; 10; 10; 10; 10; 10
5; 5; 5; 5; 5; 5; 5; 5; 5; 10; 10; 10; 25
5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 25; 25
5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 10; 10; 10; 10; 10
5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 10; 10; 25
5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 10; 10; 10; 10
5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 10; 25
5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 10; 10; 10
5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 25
5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 10; 10
5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 10
5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5; 5
Ref : Youtube Video Download (Android/Java)
private static final HashMap<String, Meta> typeMap = new HashMap<String, Meta>();
initTypeMap(); call first
class Meta {
public String num;
public String type;
public String ext;
Meta(String num, String ext, String type) {
this.num = num;
this.ext = ext;
this.type = type;
}
}
class Video {
public String ext = "";
public String type = "";
public String url = "";
Video(String ext, String type, String url) {
this.ext = ext;
this.type = type;
this.url = url;
}
}
public ArrayList<Video> getStreamingUrisFromYouTubePage(String ytUrl)
throws IOException {
if (ytUrl == null) {
return null;
}
// Remove any query params in query string after the watch?v=<vid> in
// e.g.
// http://www.youtube.com/watch?v=0RUPACpf8Vs&feature=youtube_gdata_player
int andIdx = ytUrl.indexOf('&');
if (andIdx >= 0) {
ytUrl = ytUrl.substring(0, andIdx);
}
// Get the HTML response
/* String userAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0.1)";*/
/* HttpClient client = new DefaultHttpClient();
client.getParams().setParameter(CoreProtocolPNames.USER_AGENT,
userAgent);
HttpGet request = new HttpGet(ytUrl);
HttpResponse response = client.execute(request);*/
String html = "";
HttpsURLConnection c = (HttpsURLConnection) new URL(ytUrl).openConnection();
c.setRequestMethod("GET");
c.setDoOutput(true);
c.connect();
InputStream in = c.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder str = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
str.append(line.replace("\\u0026", "&"));
}
in.close();
html = str.toString();
// Parse the HTML response and extract the streaming URIs
if (html.contains("verify-age-thumb")) {
Log.e("Downloader", "YouTube is asking for age verification. We can't handle that sorry.");
return null;
}
if (html.contains("das_captcha")) {
Log.e("Downloader", "Captcha found, please try with different IP address.");
return null;
}
Pattern p = Pattern.compile("stream_map\":\"(.*?)?\"");
// Pattern p = Pattern.compile("/stream_map=(.[^&]*?)\"/");
Matcher m = p.matcher(html);
List<String> matches = new ArrayList<String>();
while (m.find()) {
matches.add(m.group());
}
if (matches.size() != 1) {
Log.e("Downloader", "Found zero or too many stream maps.");
return null;
}
String urls[] = matches.get(0).split(",");
HashMap<String, String> foundArray = new HashMap<String, String>();
for (String ppUrl : urls) {
String url = URLDecoder.decode(ppUrl, "UTF-8");
Log.e("URL","URL : "+url);
Pattern p1 = Pattern.compile("itag=([0-9]+?)[&]");
Matcher m1 = p1.matcher(url);
String itag = null;
if (m1.find()) {
itag = m1.group(1);
}
Pattern p2 = Pattern.compile("signature=(.*?)[&]");
Matcher m2 = p2.matcher(url);
String sig = null;
if (m2.find()) {
sig = m2.group(1);
} else {
Pattern p23 = Pattern.compile("signature&s=(.*?)[&]");
Matcher m23 = p23.matcher(url);
if (m23.find()) {
sig = m23.group(1);
}
}
Pattern p3 = Pattern.compile("url=(.*?)[&]");
Matcher m3 = p3.matcher(ppUrl);
String um = null;
if (m3.find()) {
um = m3.group(1);
}
if (itag != null && sig != null && um != null) {
Log.e("foundArray","Adding Value");
foundArray.put(itag, URLDecoder.decode(um, "UTF-8") + "&"
+ "signature=" + sig);
}
}
Log.e("foundArray","Size : "+foundArray.size());
if (foundArray.size() == 0) {
Log.e("Downloader", "Couldn't find any URLs and corresponding signatures");
return null;
}
ArrayList<Video> videos = new ArrayList<Video>();
for (String format : typeMap.keySet()) {
Meta meta = typeMap.get(format);
if (foundArray.containsKey(format)) {
Video newVideo = new Video(meta.ext, meta.type,
foundArray.get(format));
videos.add(newVideo);
Log.d("Downloader", "YouTube Video streaming details: ext:" + newVideo.ext
+ ", type:" + newVideo.type + ", url:" + newVideo.url);
}
}
return videos;
}
private class YouTubePageStreamUriGetter extends AsyncTask<String, String, ArrayList<Video>> {
ProgressDialog progressDialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog = ProgressDialog.show(webViewActivity.this, "",
"Connecting to YouTube...", true);
}
@Override
protected ArrayList<Video> doInBackground(String... params) {
ArrayList<Video> fVideos = new ArrayList<>();
String url = params[0];
try {
ArrayList<Video> videos = getStreamingUrisFromYouTubePage(url);
/* Log.e("Downloader","Size of Video : "+videos.size());*/
if (videos != null && !videos.isEmpty()) {
for (Video video : videos)
{
Log.e("Downloader", "ext : " + video.ext);
if (video.ext.toLowerCase().contains("mp4") || video.ext.toLowerCase().contains("3gp") || video.ext.toLowerCase().contains("flv") || video.ext.toLowerCase().contains("webm")) {
ext = video.ext.toLowerCase();
fVideos.add(new Video(video.ext,video.type,video.url));
}
}
return fVideos;
}
} catch (Exception e) {
e.printStackTrace();
Log.e("Downloader", "Couldn't get YouTube streaming URL", e);
}
Log.e("Downloader", "Couldn't get stream URI for " + url);
return null;
}
@Override
protected void onPostExecute(ArrayList<Video> streamingUrl) {
super.onPostExecute(streamingUrl);
progressDialog.dismiss();
if (streamingUrl != null) {
if (!streamingUrl.isEmpty()) {
//Log.e("Steaming Url", "Value : " + streamingUrl);
for (int i = 0; i < streamingUrl.size(); i++) {
Video fX = streamingUrl.get(i);
Log.e("Founded Video", "URL : " + fX.url);
Log.e("Founded Video", "TYPE : " + fX.type);
Log.e("Founded Video", "EXT : " + fX.ext);
}
//new ProgressBack().execute(new String[]{streamingUrl, filename + "." + ext});
}
}
}
}
public void initTypeMap()
{
typeMap.put("13", new Meta("13", "3GP", "Low Quality - 176x144"));
typeMap.put("17", new Meta("17", "3GP", "Medium Quality - 176x144"));
typeMap.put("36", new Meta("36", "3GP", "High Quality - 320x240"));
typeMap.put("5", new Meta("5", "FLV", "Low Quality - 400x226"));
typeMap.put("6", new Meta("6", "FLV", "Medium Quality - 640x360"));
typeMap.put("34", new Meta("34", "FLV", "Medium Quality - 640x360"));
typeMap.put("35", new Meta("35", "FLV", "High Quality - 854x480"));
typeMap.put("43", new Meta("43", "WEBM", "Low Quality - 640x360"));
typeMap.put("44", new Meta("44", "WEBM", "Medium Quality - 854x480"));
typeMap.put("45", new Meta("45", "WEBM", "High Quality - 1280x720"));
typeMap.put("18", new Meta("18", "MP4", "Medium Quality - 480x360"));
typeMap.put("22", new Meta("22", "MP4", "High Quality - 1280x720"));
typeMap.put("37", new Meta("37", "MP4", "High Quality - 1920x1080"));
typeMap.put("33", new Meta("38", "MP4", "High Quality - 4096x230"));
}
Edit 2:
Some time This Code Not worked proper
Same-origin policy
https://en.wikipedia.org/wiki/Same-origin_policy
https://en.wikipedia.org/wiki/Cross-origin_resource_sharing
problem of Same-origin policy. Essentially, you cannot download this file from www.youtube.com because they are different domains. A workaround of this problem is [CORS][1].
url_encoded_fmt_stream_map // traditional: contains video and audio stream
adaptive_fmts // DASH: contains video or audio stream
Each of these is a comma separated array of what I would call "stream objects". Each "stream object" will contain values like this
url // direct HTTP link to a video
itag // code specifying the quality
s // signature, security measure to counter downloading
Each URL will be encoded so you will need to decode them. Now the tricky part.
YouTube has at least 3 security levels for their videos
unsecured // as expected, you can download these with just the unencoded URL
s // see below
RTMPE // uses "rtmpe://" protocol, no known method for these
The RTMPE videos are typically used on official full length movies, and are protected with SWF Verification Type 2. This has been around since 2011 and has yet to be reverse engineered.
The type "s" videos are the most difficult that can actually be downloaded. You will typcially see these on VEVO videos and the like. They start with a signature such as
AA5D05FA7771AD4868BA4C977C3DEAAC620DE020E.0F421820F42978A1F8EAFCDAC4EF507DB5 Then the signature is scrambled with a function like this
function mo(a) {
a = a.split("");
a = lo.rw(a, 1);
a = lo.rw(a, 32);
a = lo.IC(a, 1);
a = lo.wS(a, 77);
a = lo.IC(a, 3);
a = lo.wS(a, 77);
a = lo.IC(a, 3);
a = lo.wS(a, 44);
return a.join("")
}
This function is dynamic, it typically changes every day. To make it more difficult the function is hosted at a URL such as
http://s.ytimg.com/yts/jsbin/html5player-en_US-vflycBCEX.js
this introduces the problem of Same-origin policy. Essentially, you cannot download this file from www.youtube.com because they are different domains. A workaround of this problem is CORS. With CORS, s.ytimg.com could add this header
Access-Control-Allow-Origin: http://www.youtube.com
and it would allow the JavaScript to download from www.youtube.com. Of course they do not do this. A workaround for this workaround is to use a CORS proxy. This is a proxy that responds with the following header to all requests
Access-Control-Allow-Origin: *
So, now that you have proxied your JS file, and used the function to scramble the signature, you can use that in the querystring to download a video.
If your web server supports Serlvet 3.0 spec, like tomcat 7.0+, you can use below in web.xml
as:
<session-config>
<cookie-config>
<http-only>true</http-only>
<secure>true</secure>
</cookie-config>
</session-config>
As mentioned in docs:
HttpOnly: Specifies whether any session tracking cookies created by this web application will be marked as HttpOnly
Secure: Specifies whether any session tracking cookies created by this web application will be marked as secure even if the request that initiated the corresponding session is using plain HTTP instead of HTTPS
Please refer to how to set httponly and session cookie for java web application
It seems you may be more comfortable with developing in PHP you let this hold you back from utilizing the full potential with web applications.
It is indeed possible to have PHP render partials and whole views, but I would not recommend it.
To fully utilize the possibilities of HTML and javascript to make a web application, that is, a web page that acts more like an application and relies heavily on client side rendering, you should consider letting the client maintain all responsibility of managing state and presentation. This will be easier to maintain, and will be more user friendly.
I would recommend you to get more comfortable thinking in a more API centric approach. Rather than having PHP output a pre-rendered view, and use angular for mere DOM manipulation, you should consider having the PHP backend output the data that should be acted upon RESTFully, and have Angular present it.
Using PHP to render the view:
/user/account
if($loggedIn)
{
echo "<p>Logged in as ".$user."</p>";
}
else
{
echo "Please log in.";
}
How the same problem can be solved with an API centric approach by outputting JSON like this:
api/auth/
{
authorized:true,
user: {
username: 'Joe',
securityToken: 'secret'
}
}
and in Angular you could do a get, and handle the response client side.
$http.post("http://example.com/api/auth", {})
.success(function(data) {
$scope.isLoggedIn = data.authorized;
});
To blend both client side and server side the way you proposed may be fit for smaller projects where maintainance is not important and you are the single author, but I lean more towards the API centric way as this will be more correct separation of conserns and will be easier to maintain.
You can use the following code inside the style tag:
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
/* IE10+ specific styles go here */
}
Below is an example that worked for me:
<style type="text/css">
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
/* IE10+ specific styles go here */
#flashvideo {
width:320px;
height:240;
margin:-240px 0 0 350px;
float:left;
}
#googleMap {
width:320px;
height:240;
margin:-515px 0 0 350px;
float:left;
border-color:#000000;
}
}
#nav li {
list-style:none;
width:240px;
height:25px;
}
#nav a {
display:block;
text-indent:-5000px;
height:25px;
width:240px;
}
</style>
Please note that since (#nav li) and (#nav a) are outside of the @media screen ..., they are general styles.
This one is similar to @Wilhelm's solution. The loop automates based on a range created by evaluating the populated date column. This was slapped together based strictly on the conversation here and screenshots.
Please note: This assumes that the headers will always be on the same row (row 8). Changing the first row of data (moving the header up/down) will cause the range automation to break unless you edit the range block to take in the header row dynamically. Other assumptions include that VOL and CAPACITY formula column headers are named "Vol" and "Cap" respectively.
Sub Loop3()
Dim dtCnt As Long
Dim rng As Range
Dim frmlas() As String
Application.ScreenUpdating = False
'The following code block sets up the formula output range
dtCnt = Sheets("Loop").Range("A1048576").End(xlUp).Row 'lowest date column populated
endHead = Sheets("Loop").Range("XFD8").End(xlToLeft).Column 'right most header populated
Set rng = Sheets("Loop").Range(Cells(9, 2), Cells(dtCnt, endHead)) 'assigns range for automation
ReDim frmlas(1) 'array assigned to formula strings
'VOL column formula
frmlas(0) = "VOL FORMULA"
'CAPACITY column formula
frmlas(1) = "CAP FORMULA"
For i = 1 To rng.Columns.count
If rng(0, i).Value = "Vol" Then 'checks for volume formula column
For j = 1 To rng.Rows.count
rng(j, i).Formula= frmlas(0) 'inserts volume formula
Next j
ElseIf rng(0, i).Value = "Cap" Then 'checks for capacity formula column
For j = 1 To rng.Rows.count
rng(j, i).Formula = frmlas(1) 'inserts capacity formula
Next j
End If
Next i
Application.ScreenUpdating = True
End Sub
$('.handle').css('left', '300px');
$('.handle').css({
left : '300px'
});
$('.handle').attr('style', 'left : 300px');
or use OrnaJS
That works for me: Add Custom Font in React Native
download your fonts and place them in assets/fonts folder, add this line in package.json
"rnpm": {
"assets": ["assets/fonts/Sarpanch"]}
then open terminal and run this command: react-native link
Now your are good to go. For more detailed step. visit the link above mentioned
I think you can use Step 1: Select text Step 2: Ctrl + Shift + P Step 3: Enter Uppercae
UPDATE IP_ADMISSION_REQUEST ip1
SET IP1.WRIST_BAND_PRINT_STATUS=0
WHERE IP1.IP_ADM_REQ_ID =
(SELECT IP.IP_ADM_REQ_ID
FROM IP_ADMISSION_REQUEST ip
INNER JOIN VISIT v
ON ip.ip_visit_id=v.visit_id
AND v.pat_id =3702
); `enter code here`
Box and Cox (1964) suggested a family of transformations designed to reduce nonnormality of the errors in a linear model. In turns out that in doing this, it often reduces non-linearity as well.
Here is a nice summary of the original work and all the work that's been done since: http://www.ime.usp.br/~abe/lista/pdfm9cJKUmFZp.pdf
You will notice, however, that the log-likelihood function governing the selection of the lambda power transform is dependent on the residual sum of squares of an underlying model (no LaTeX on SO -- see the reference), so no transformation can be applied without a model.
A typical application is as follows:
library(MASS)
# generate some data
set.seed(1)
n <- 100
x <- runif(n, 1, 5)
y <- x^3 + rnorm(n)
# run a linear model
m <- lm(y ~ x)
# run the box-cox transformation
bc <- boxcox(y ~ x)
(lambda <- bc$x[which.max(bc$y)])
[1] 0.4242424
powerTransform <- function(y, lambda1, lambda2 = NULL, method = "boxcox") {
boxcoxTrans <- function(x, lam1, lam2 = NULL) {
# if we set lambda2 to zero, it becomes the one parameter transformation
lam2 <- ifelse(is.null(lam2), 0, lam2)
if (lam1 == 0L) {
log(y + lam2)
} else {
(((y + lam2)^lam1) - 1) / lam1
}
}
switch(method
, boxcox = boxcoxTrans(y, lambda1, lambda2)
, tukey = y^lambda1
)
}
# re-run with transformation
mnew <- lm(powerTransform(y, lambda) ~ x)
# QQ-plot
op <- par(pty = "s", mfrow = c(1, 2))
qqnorm(m$residuals); qqline(m$residuals)
qqnorm(mnew$residuals); qqline(mnew$residuals)
par(op)
As you can see this is no magic bullet -- only some data can be effectively transformed (usually a lambda less than -2 or greater than 2 is a sign you should not be using the method). As with any statistical method, use with caution before implementing.
To use the two parameter Box-Cox transformation, use the geoR
package to find the lambdas:
library("geoR")
bc2 <- boxcoxfit(x, y, lambda2 = TRUE)
lambda1 <- bc2$lambda[1]
lambda2 <- bc2$lambda[2]
EDITS: Conflation of Tukey and Box-Cox implementation as pointed out by @Yui-Shiuan fixed.
Setting the CLASSPATH System Variable
To display the current CLASSPATH variable, use these commands in Windows and UNIX (Bourne shell):
In Windows: C:\> set CLASSPATH
In UNIX: % echo $CLASSPATH
To delete the current contents of the CLASSPATH variable, use these commands:
In Windows: C:\> set CLASSPATH=
In UNIX: % unset CLASSPATH; export CLASSPATH
To set the CLASSPATH variable, use these commands (for example):
In Windows: C:\> set CLASSPATH=C:\users\george\java\classes
In UNIX: % CLASSPATH=/home/george/java/classes; export CLASSPATH
Try this way of formation, it is rather fancy ...
Have a look at this jsfiddle
The idea is to choose a the radio as a button instead of the normal circle image.
This is inherently the wrong thing to do. If you are running a Python script from another Python script, you should communicate through Python instead of through the OS:
import script1
In an ideal world, you will be able to call a function inside script1
directly:
for i in range(whatever):
script1.some_function(i)
If necessary, you can hack sys.argv
. There's a neat way of doing this using a context manager to ensure that you don't make any permanent changes.
import contextlib
@contextlib.contextmanager
def redirect_argv(num):
sys._argv = sys.argv[:]
sys.argv=[str(num)]
yield
sys.argv = sys._argv
with redirect_argv(1):
print(sys.argv)
I think this is preferable to passing all your data to the OS and back; that's just silly.
There are actually two limits. One, the maximum element indexable for the array and, two, the amount of memory available to your application. Depending on the amount of memory available and the amount used by other data structures, you may hit the memory limit before you reach the maximum addressable array element.
Modified @Seth Ladd answer for who's prefer Swift style of singleton like .shared
:
class Auth {
// singleton
static final Auth _singleton = Auth._internal();
factory Auth() => _singleton;
Auth._internal();
static Auth get shared => _singleton;
// variables
String username;
String password;
}
Sample:
Auth.shared.username = 'abc';
You can add a tree observer to the layout. This should return the correct width and height. onCreate()
is called before the layout of the child views are done. So the width and height is not calculated yet. To get the height and width, put this on the onCreate()
method:
final LinearLayout layout = (LinearLayout) findViewById(R.id.YOUR_VIEW_ID);
ViewTreeObserver vto = layout.getViewTreeObserver();
vto.addOnGlobalLayoutListener (new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
layout.getViewTreeObserver()
.removeOnGlobalLayoutListener(this);
} else {
layout.getViewTreeObserver()
.removeGlobalOnLayoutListener(this);
}
int width = layout.getMeasuredWidth();
int height = layout.getMeasuredHeight();
}
});
I did have similar problem. For some reason under project properties -> Signing -> Sign ClickOnce manifests was enabled.
I unchecked it and the problem went away.
You can do execute this command : rails g migration rename_{old_table_name}to{new_table_name}
after you edit the file and add this code in the method change
rename_table :{old_table_name}, :{new_table_name}
For those experimenting with this in phpMyAdmin, just a word:
phpMyAdmin appears to have a few problems with USING
. For the record this is phpMyAdmin run on Linux Mint, version: "4.5.4.1deb2ubuntu2", Database server: "10.2.14-MariaDB-10.2.14+maria~xenial - mariadb.org binary distribution".
I have run SELECT
commands using JOIN
and USING
in both phpMyAdmin and in Terminal (command line), and the ones in phpMyAdmin produce some baffling responses:
1) a LIMIT
clause at the end appears to be ignored.
2) the supposed number of rows as reported at the top of the page with the results is sometimes wrong: for example 4 are returned, but at the top it says "Showing rows 0 - 24 (2503 total, Query took 0.0018 seconds.)"
Logging on to mysql normally and running the same queries does not produce these errors. Nor do these errors occur when running the same query in phpMyAdmin using JOIN ... ON ...
. Presumably a phpMyAdmin bug.
for me following worked, just ran these command one by one
git pull -r origin master
git push -f origin your_branch
you can returns a private collection named HttpValueCollection even the documentation says it's a NameValueCollection using the ParseQueryString utility. Then add the keys manually, HttpValueCollection do the encoding for you. And then just append the QueryString manually :
var qs = HttpUtility.ParseQueryString("");
qs.Add("name", "John")
qs.Add("contact", "calgary");
qs.Add("contact", "vancouver")
<a href="<%: Url.Action("GetByList", "Listing")%>?<%:qs%>">
<span>People</span>
</a>
Original answer using git's start-ssh-agent
Make sure you have Git installed and have git's cmd
folder in your PATH. For example, on my computer the path to git's cmd folder is C:\Program Files\Git\cmd
Make sure your id_rsa
file is in the folder c:\users\yourusername\.ssh
Restart your command prompt if you haven't already, and then run start-ssh-agent
. It will find your id_rsa
and prompt you for the passphrase
Update 2019 - A better solution if you're using Windows 10: OpenSSH is available as part of Windows 10 which makes using SSH from cmd/powershell much easier in my opinion. It also doesn't rely on having git installed, unlike my previous solution.
Open Manage optional features
from the start menu and make sure you have Open SSH Client
in the list. If not, you should be able to add it.
Open Services
from the start Menu
Scroll down to OpenSSH Authentication Agent
> right click > properties
Change the Startup type from Disabled to any of the other 3 options. I have mine set to Automatic (Delayed Start)
Open cmd and type where ssh
to confirm that the top listed path is in System32. Mine is installed at C:\Windows\System32\OpenSSH\ssh.exe
. If it's not in the list you may need to close and reopen cmd.
Once you've followed these steps, ssh-agent, ssh-add and all other ssh commands should now work from cmd. To start the agent you can simply type ssh-agent
.
GIT_SSH
environment variable to the output of where ssh
which you ran before (e.g C:\Windows\System32\OpenSSH\ssh.exe
). This is to stop inconsistencies between the version of ssh you're using (and your keys are added/generated with) and the version that git uses internally. This should prevent issues that are similar to thisSome nice things about this solution:
id_rsa
Hope this helps
What "exactly" an API key is used for depends very much on who issues it, and what services it's being used for. By and large, however, an API key is the name given to some form of secret token which is submitted alongside web service (or similar) requests in order to identify the origin of the request. The key may be included in some digest of the request content to further verify the origin and to prevent tampering with the values.
Typically, if you can identify the source of a request positively, it acts as a form of authentication, which can lead to access control. For example, you can restrict access to certain API actions based on who's performing the request. For companies which make money from selling such services, it's also a way of tracking who's using the thing for billing purposes. Further still, by blocking a key, you can partially prevent abuse in the case of too-high request volumes.
In general, if you have both a public and a private API key, then it suggests that the keys are themselves a traditional public/private key pair used in some form of asymmetric cryptography, or related, digital signing. These are more secure techniques for positively identifying the source of a request, and additionally, for protecting the request's content from snooping (in addition to tampering).
If behind a proxy, you can navigate to Ruby downloads, click on Download, which will download the specified update ( or Gem ) to a desired location.
Next, via Ruby command line, navigate to the downloaded location by using : pushd [directory]
eg : pushd D:\Setups
then run the following command: gem install [update name] --local
eg: gem install rubygems-update --local
.
Tested on Windows 7 with Ruby update version 2.4.1.
To check use following command : ruby -v
you could JSONObject#has
, providing the key
as input and check if the method returns true
or false
. You could also
use optString
instead of getString
:
Returns the value mapped by name if it exists, coercing it if necessary. Returns the empty string if no such mapping exists
I had some code that was failing with an HTTPConnection (MOVED_PERMANENTLY error)
, but as soon as I switched to HTTPS
it worked perfectly again with no other changes needed. That's a very simple fix!
The way I always do it (assuming the data is never to be deleted, only inserted) is to
insert
, if this fails with a unique constraint violation then you know the row is there,update
Unfortunately many frameworks such as Hibernate treat all database errors (e.g. unique constraint violation) as unrecoverable conditions, so it isn't always easy. (In Hibernate the solution is to open a new session/transaction just to execute this one insert
command.)
You can't just do a select count(*) .. where ..
as even if that returns zero, and therefore you choose to do an insert
, between the time you do the select
and the insert
someone else might have insert
ed the row and therefore your insert
will fail.
Using windows authentication:
String url ="jdbc:sqlserver://PC01\inst01;databaseName=DB01;integratedSecurity=true";
Using SQL authentication:
String url ="jdbc:sqlserver://PC01\inst01;databaseName=DB01";
In may case system run out of free space on local disk.
There is already a transparent built into Android: R.color.transparent. http://developer.android.com/reference/android/R.color.html#transparent
But I think you may want to make the background of the image that you are placing into the WebView transparent, for example, with a transparent PNG, rather than the ImageView background. If the actual image is not at all see-through then the ImageView background can't be seen through it.
Primitive data types (such as byte) don't have methods in java, but you can directly do:
int i=rno[0];
This worked for me
On the tab "Workloads" check ".Net Core cross-platform development" and click on "Modify"
Don't forget to check ".NET Core 2.0 development tools" on the left menu.
I installed the Asp Net Core before, however not appeared on my Visual Studio, just after I installed using the installation of Visual Studio appeared for me.
Don't use it. The description says:
Register one or more global variables with the current session.
Two things that came to my mind:
$_SESSION['var'] = "value"
.See also the warnings from the manual:
If you want your script to work regardless of
register_globals
, you need to instead use the$_SESSION
array as$_SESSION
entries are automatically registered. If your script usessession_register()
, it will not work in environments where the PHP directiveregister_globals
is disabled.
This is pretty important, because the register_globals
directive is set to False
by default!
Further:
This registers a
global
variable. If you want to register a session variable from within a function, you need to make sure to make it global using theglobal
keyword or the$GLOBALS[]
array, or use the special session arrays as noted below.
and
If you are using
$_SESSION
(or$HTTP_SESSION_VARS
), do not usesession_register()
,session_is_registered()
, andsession_unregister()
.
You could use module scope. Say you have a module called utils
:
f_value = 'foo'
def f():
return f_value
f_value
is a module attribute that can be modified by any other module that imports it. As modules are singletons, any change to utils
from one module will be accessible to all other modules that have it imported:
>> import utils
>> utils.f()
'foo'
>> utils.f_value = 'bar'
>> utils.f()
'bar'
Note that you can import the function by name:
>> import utils
>> from utils import f
>> utils.f_value = 'bar'
>> f()
'bar'
But not the attribute:
>> from utils import f, f_value
>> f_value = 'bar'
>> f()
'foo'
This is because you're labeling the object referenced by the module attribute as f_value
in the local scope, but then rebinding it to the string bar
, while the function f
is still referring to the module attribute.
It's probably worth mentioning that for http/https some people proxy their browser traffic through Burp/ZAP or another intercepting "attack proxy". A thread that covers options for this on Android devices can be found here: https://android.stackexchange.com/questions/32366/which-browser-does-support-proxies
#!/usr/bin/env python
import pandas as pd
# Make example dataframe
df = pd.DataFrame([(1, 'Germany'),
(2, 'France'),
(3, 'Indonesia'),
(4, 'France'),
(5, 'France'),
(6, 'Germany'),
(7, 'UK'),
],
columns=['groupid', 'country'],
index=['a', 'b', 'c', 'd', 'e', 'f', 'g'])
# What you're looking for
values = df['country'].value_counts().keys().tolist()
counts = df['country'].value_counts().tolist()
Now, print(df['country'].value_counts())
gives:
France 3
Germany 2
UK 1
Indonesia 1
and print(values)
gives:
['France', 'Germany', 'UK', 'Indonesia']
and print(counts)
gives:
[3, 2, 1, 1]
I had a very similar issue earlier. Unfortunately I looked at this thread and didn't find an answer which I was happy with. Hopefully this will help others.
Using VBA.DateSerial(year,month,day)
you can overcome Excel's intrinsic bias to US date format. It also means you have full control over the data, which is something I personally prefer:
function convDate(str as string) as Date
Dim day, month, year as integer
year = int(mid(str,1,4))
month = int(mid(str,6,2))
day = int(mid(str,9,2))
convDate = VBA.DateSerial(year,month,day)
end function
Using the for-loop like you have, one way is this:
def altElement(a):
b = []
j = False
for i in a:
j = not j
if j:
b.append(i)
print b
j just keeps switching between 0 and 1 to keep track of when to append an element to b.
This will replace backslashes with forward slashes in the string:
source = source.replace('\\','/');
To write a newline use \n
not /n
the latter is just a slash and a n
Here's a beautiful dynamic function I wrote to remove last part of url or path.
/**
* remove the last directories
*
* @param $path the path
* @param $level number of directories to remove
*
* @return string
*/
private function removeLastDir($path, $level)
{
if(is_int($level) && $level > 0){
$path = preg_replace('#\/[^/]*$#', '', $path);
return $this->removeLastDir($path, (int) $level - 1);
}
return $path;
}
Add #include "afxwin.h"
in your source file. It will solve your issue.
<add key="ValidationSettings:UnobtrusiveValidationMode" value="WebForms" />
this line was not in my WebConfig so : I simple solved this by downgrading targetting .Net version to 4.0 :)
I have to say that i love Coda, it can do almost anything you need in 'plain' text WebDevelopent, i use it daily to develop simple and complex projects using XHTML,PHP,Javascript,CSS...
Ok, it's not free but compare it with many other development suits and you'll find that that 100$ are really affordable (i bought many months ago when it was at about 60$) In the last version they included a lot of new nice features and whoa... just look at the panic WebSite
Before using coda i was a hardcore ZendStudio User, i used that in Windows,Linux and Mac (i have been user for a long time for all that platforms) as it was developed in Java it was really slow even in a modern MacBookPro.. so i also tested a lots of diferent IDEs for developing but at this moment any of these are as powerful and simple as Coda is
FileInfo.Length
will return the length of file, in bytes (not size on disk), so this is what you are looking for, I think.
The simplest way seems to be :
@Around("execution(@MyHandling * com.exemple.YourService.*(..))")
public Object aroundServiceMethodAdvice(final ProceedingJoinPoint pjp)
throws Throwable {
// perform actions before
return pjp.proceed();
// perform actions after
}
It will intercept execution of all methods specifically annotated with '@MyHandling' in 'YourService' class. To intercept all methods without exception, just put the annotation directly on the class.
No matter of the private / public scope here, but keep in mind that spring-aop cannot use aspect for method calls in same instance (typically private ones), because it doesn't use the proxy class in this case.
We use @Around advice here, but it's basically the same syntax with @Before, @After or any advice.
By the way, @MyHandling annotation must be configured like this :
@Retention(RetentionPolicy.RUNTIME)
@Target( { ElementType.METHOD, ElementType.TYPE })
public @interface MyHandling {
}
This was how added my headers in my flask application and it worked perfectly
@app.after_request
def add_header(response):
response.headers['X-Content-Type-Options'] = 'nosniff'
return response
I know this post is old but here is what I found.
It doesn't work when I link it this way(with /
before css/style.css
on the href
attribute.
<link rel="stylesheet" media="all" href="/CSS/Style.css" type="text/css" />
However, when I removed /
I'm able to link properly with the css file
It should be like this(without /
).
<link rel="stylesheet" media="all" href="CSS/Style.css" type="text/css" />
This was giving me trouble on my project. Hope it will help somebody else.
use tar to split into multiple archives
there are plenty of programs that will work with tar files on windows, including cygwin.
Make sure there is no whitespace before your php tag
// whitespace
<?php
namespace HelloWorld
?>
Remove the white space before your php tag starts
<?php
namespace HelloWorld
?>
Here's a Boolean thing:
if (not suffix == "flac" ) or (not suffix == "cue" ): # WRONG! FAILS
print filename + ' is not a flac or cue file'
but
if not (suffix == "flac" or suffix == "cue" ): # CORRECT!
print filename + ' is not a flac or cue file'
(not a) or (not b) == not ( a and b )
,
is false only if a and b are both true
not (a or b)
is true only if a and be are both false.
I don't exactly understand what's the problem. Incomplete type is not the type that's "missing". Incompete type is a type that is declared but not defined (in case of struct types). To find the non-defining declaration is easy. As for the finding the missing definition... the compiler won't help you here, since that is what caused the error in the first place.
A major reason for incomplete type errors in C are typos in type names, which prevent the compiler from matching one name to the other (like in matching the declaration to the definition). But again, the compiler cannot help you here. Compiler don't make guesses about typos.
I Know this question was aked 3 years ago, but I just had the same problem, and what solved it was instead of putting:
while (i.hasNext()) {
// code goes here
}
I did one iteration at the start, and then checked for condition using:
do {
// code goes here
} while (i.hasNext());
I hope this will help some people at some stage.
Using ES6
notation, you can do something like this:
For appending you can use the spread operator like this:
var arr1 = [1,2,3]_x000D_
var obj = 4_x000D_
var newData = [...arr1, obj] // [1,2,3,4]_x000D_
console.log(newData);
_x000D_
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using iTextSharp;
using iTextSharp.text;
using iTextSharp.text.pdf;
using DataLayer;
namespace DataMngt.MyCode
{
public class HeaderFooter : PdfPageEventHelper
{
#region Startup_Stuff
private string[] _headerLines;
private string _footerLine;
private DefineFont _boldFont;
private DefineFont _normalFont;
private iTextSharp.text.Font fontTxtBold;
private iTextSharp.text.Font fontTxtRegular;
private int _fontPointSize = 0;
private bool hasFooter = false;
private bool hasHeader = false;
private int _headerWidth = 0;
private int _headerHeight = 0;
private int _footerWidth = 0;
private int _footerHeight = 0;
private int _leftMargin = 0;
private int _rightMargin = 0;
private int _topMargin = 0;
private int _bottomMargin = 0;
private PageNumbers NumberSettings;
private DateTime runTime = DateTime.Now;
public enum PageNumbers
{
None,
HeaderPlacement,
FooterPlacement
}
// This is the contentbyte object of the writer
PdfContentByte cb;
PdfTemplate headerTemplate;
PdfTemplate footerTemplate;
public string[] headerLines
{
get
{
return _headerLines;
}
set
{
_headerLines = value;
hasHeader = true;
}
}
public string footerLine
{
get
{
return _footerLine;
}
set
{
_footerLine = value;
hasFooter = true;
}
}
public DefineFont boldFont
{
get
{
return _boldFont;
}
set
{
_boldFont = value;
}
}
public DefineFont normalFont
{
get
{
return _normalFont;
}
set
{
_normalFont = value;
}
}
public int fontPointSize
{
get
{
return _fontPointSize;
}
set
{
_fontPointSize = value;
}
}
public int leftMargin
{
get
{
return _leftMargin;
}
set
{
_leftMargin = value;
}
}
public int rightMargin
{
get
{
return _rightMargin;
}
set
{
_rightMargin = value;
}
}
public int topMargin
{
get
{
return _topMargin;
}
set
{
_topMargin = value;
}
}
public int bottomMargin
{
get
{
return _bottomMargin;
}
set
{
_bottomMargin = value;
}
}
public int headerheight
{
get
{
return _headerHeight;
}
}
public int footerHeight
{
get
{
return _footerHeight;
}
}
public PageNumbers PageNumberSettings
{
get
{
return NumberSettings;
}
set
{
NumberSettings = value;
}
}
#endregion
#region Write_Headers_Footers
public override void OnEndPage(PdfWriter writer, Document document)
{
if (hasHeader)
{
// left side is the string array passed in
// right side is a built in string array (0 = date, 1 = time, 2(optional) = page)
float[] widths = new float[2] { 90f, 10f };
PdfPTable hdrTable = new PdfPTable(2);
hdrTable.TotalWidth = document.PageSize.Width - (_leftMargin + _rightMargin);
hdrTable.WidthPercentage = 95;
hdrTable.SetWidths(widths);
hdrTable.LockedWidth = true;
for (int hdrIdx = 0; hdrIdx < (_headerLines.Length < 2 ? 2 : _headerLines.Length); hdrIdx ++)
{
string leftLine = (hdrIdx < _headerLines.Length ? _headerLines[hdrIdx] : string.Empty);
Paragraph leftPara = new Paragraph(5, leftLine, (hdrIdx == 0 ? fontTxtBold : fontTxtRegular));
switch (hdrIdx)
{
case 0:
{
leftPara.Font.Size = _fontPointSize;
PdfPCell leftCell = new PdfPCell(leftPara);
leftCell.HorizontalAlignment = Element.ALIGN_LEFT;
leftCell.Border = 0;
string rightLine = string.Format(SalesPlanResources.datePara, runTime.ToString(SalesPlanResources.datePrintMask));
Paragraph rightPara = new Paragraph(5, rightLine, (hdrIdx == 0 ? fontTxtBold : fontTxtRegular));
rightPara.Font.Size = _fontPointSize;
PdfPCell rightCell = new PdfPCell(rightPara);
rightCell.HorizontalAlignment = Element.ALIGN_LEFT;
rightCell.Border = 0;
hdrTable.AddCell(leftCell);
hdrTable.AddCell(rightCell);
break;
}
case 1:
{
leftPara.Font.Size = _fontPointSize;
PdfPCell leftCell = new PdfPCell(leftPara);
leftCell.HorizontalAlignment = Element.ALIGN_LEFT;
leftCell.Border = 0;
string rightLine = string.Format(SalesPlanResources.timePara, runTime.ToString(SalesPlanResources.timePrintMask));
Paragraph rightPara = new Paragraph(5, rightLine, (hdrIdx == 0 ? fontTxtBold : fontTxtRegular));
rightPara.Font.Size = _fontPointSize;
PdfPCell rightCell = new PdfPCell(rightPara);
rightCell.HorizontalAlignment = Element.ALIGN_LEFT;
rightCell.Border = 0;
hdrTable.AddCell(leftCell);
hdrTable.AddCell(rightCell);
break;
}
case 2:
{
leftPara.Font.Size = _fontPointSize;
PdfPCell leftCell = new PdfPCell(leftPara);
leftCell.HorizontalAlignment = Element.ALIGN_LEFT;
leftCell.Border = 0;
string rightLine;
if (NumberSettings == PageNumbers.HeaderPlacement)
{
rightLine = string.Concat(SalesPlanResources.pagePara, writer.PageNumber.ToString());
}
else
{
rightLine = string.Empty;
}
Paragraph rightPara = new Paragraph(5, rightLine, fontTxtRegular);
rightPara.Font.Size = _fontPointSize;
PdfPCell rightCell = new PdfPCell(rightPara);
rightCell.HorizontalAlignment = Element.ALIGN_LEFT;
rightCell.Border = 0;
hdrTable.AddCell(leftCell);
hdrTable.AddCell(rightCell);
break;
}
default:
{
leftPara.Font.Size = _fontPointSize;
PdfPCell leftCell = new PdfPCell(leftPara);
leftCell.HorizontalAlignment = Element.ALIGN_LEFT;
leftCell.Border = 0;
leftCell.Colspan = 2;
hdrTable.AddCell(leftCell);
break;
}
}
}
hdrTable.WriteSelectedRows(0, -1, _leftMargin, document.PageSize.Height - _topMargin, writer.DirectContent);
//Move the pointer and draw line to separate header section from rest of page
cb.MoveTo(_leftMargin, document.Top + 10);
cb.LineTo(document.PageSize.Width - _leftMargin, document.Top + 10);
cb.Stroke();
}
if (hasFooter)
{
// footer line is the width of the page so it is centered horizontally
PdfPTable ftrTable = new PdfPTable(1);
float[] widths = new float[1] {100 };
ftrTable.TotalWidth = document.PageSize.Width - 10;
ftrTable.WidthPercentage = 95;
ftrTable.SetWidths(widths);
string OneLine;
if (NumberSettings == PageNumbers.FooterPlacement)
{
OneLine = string.Concat(_footerLine, writer.PageNumber.ToString());
}
else
{
OneLine = _footerLine;
}
Paragraph onePara = new Paragraph(0, OneLine, fontTxtRegular);
onePara.Font.Size = _fontPointSize;
PdfPCell oneCell = new PdfPCell(onePara);
oneCell.HorizontalAlignment = Element.ALIGN_CENTER;
oneCell.Border = 0;
ftrTable.AddCell(oneCell);
ftrTable.WriteSelectedRows(0, -1, _leftMargin, (_footerHeight), writer.DirectContent);
//Move the pointer and draw line to separate footer section from rest of page
cb.MoveTo(_leftMargin, document.PageSize.GetBottom(_footerHeight + 2));
cb.LineTo(document.PageSize.Width - _leftMargin, document.PageSize.GetBottom(_footerHeight + 2));
cb.Stroke();
}
}
#endregion
#region Setup_Headers_Footers_Happens_here
public override void OnOpenDocument(PdfWriter writer, Document document)
{
// create the fonts that are to be used
// first the hightlight or Bold font
fontTxtBold = FontFactory.GetFont(_boldFont.fontFamily, _boldFont.fontSize, _boldFont.foreColor);
if (_boldFont.isBold)
{
fontTxtBold.SetStyle(Font.BOLD);
}
if (_boldFont.isItalic)
{
fontTxtBold.SetStyle(Font.ITALIC);
}
if (_boldFont.isUnderlined)
{
fontTxtBold.SetStyle(Font.UNDERLINE);
}
// next the normal font
fontTxtRegular = FontFactory.GetFont(_normalFont.fontFamily, _normalFont.fontSize, _normalFont.foreColor);
if (_normalFont.isBold)
{
fontTxtRegular.SetStyle(Font.BOLD);
}
if (_normalFont.isItalic)
{
fontTxtRegular.SetStyle(Font.ITALIC);
}
if (_normalFont.isUnderlined)
{
fontTxtRegular.SetStyle(Font.UNDERLINE);
}
// now build the header and footer templates
try
{
float pageHeight = document.PageSize.Height;
float pageWidth = document.PageSize.Width;
_headerWidth = (int)pageWidth - ((int)_rightMargin + (int)_leftMargin);
_footerWidth = _headerWidth;
if (hasHeader)
{
// i basically dummy build the headers so i can trial fit them and see how much space they take.
float[] widths = new float[1] { 90f };
PdfPTable hdrTable = new PdfPTable(1);
hdrTable.TotalWidth = document.PageSize.Width - (_leftMargin + _rightMargin);
hdrTable.WidthPercentage = 95;
hdrTable.SetWidths(widths);
hdrTable.LockedWidth = true;
_headerHeight = 0;
for (int hdrIdx = 0; hdrIdx < (_headerLines.Length < 2 ? 2 : _headerLines.Length); hdrIdx++)
{
Paragraph hdrPara = new Paragraph(5, hdrIdx > _headerLines.Length - 1 ? string.Empty : _headerLines[hdrIdx], (hdrIdx > 0 ? fontTxtRegular : fontTxtBold));
PdfPCell hdrCell = new PdfPCell(hdrPara);
hdrCell.HorizontalAlignment = Element.ALIGN_LEFT;
hdrCell.Border = 0;
hdrTable.AddCell(hdrCell);
_headerHeight = _headerHeight + (int)hdrTable.GetRowHeight(hdrIdx);
}
// iTextSharp underestimates the size of each line so fudge it a little
// this gives me 3 extra lines to play with on the spacing
_headerHeight = _headerHeight + (_fontPointSize * 3);
}
if (hasFooter)
{
_footerHeight = (_fontPointSize * 2);
}
document.SetMargins(_leftMargin, _rightMargin, (_topMargin + _headerHeight), _footerHeight);
cb = writer.DirectContent;
if (hasHeader)
{
headerTemplate = cb.CreateTemplate(_headerWidth, _headerHeight);
}
if (hasFooter)
{
footerTemplate = cb.CreateTemplate(_footerWidth, _footerHeight);
}
}
catch (DocumentException de)
{
}
catch (System.IO.IOException ioe)
{
}
}
#endregion
#region Cleanup_Doc_Processing
public override void OnCloseDocument(PdfWriter writer, Document document)
{
base.OnCloseDocument(writer, document);
if (hasHeader)
{
headerTemplate.BeginText();
headerTemplate.SetTextMatrix(0, 0);
if (NumberSettings == PageNumbers.HeaderPlacement)
{
}
headerTemplate.EndText();
}
if (hasFooter)
{
footerTemplate.BeginText();
footerTemplate.SetTextMatrix(0, 0);
if (NumberSettings == PageNumbers.FooterPlacement)
{
}
footerTemplate.EndText();
}
}
#endregion
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using iTextSharp;
using iTextSharp.text;
using iTextSharp.text.pdf;
namespace DataMngt.MyCode
{
// used to define the fonts passed into the header and footer class
public struct DefineFont
{
public string fontFamily { get; set; }
public int fontSize { get; set; }
public bool isBold { get; set; }
public bool isItalic { get; set; }
public bool isUnderlined { get; set; }
public BaseColor foreColor { get; set; }
}
}
To Use:
Document pdfDoc = new Document(PageSize.LEGAL.Rotate(), 10, 10, 25, 25);
System.IO.MemoryStream mStream = new System.IO.MemoryStream();
PdfWriter writer = PdfWriter.GetInstance(pdfDoc, mStream);
MyCode.HeaderFooter headers = new MyCode.HeaderFooter();
writer.PageEvent = headers;
.. .. Build the string array for the headers ...
DefineFont passFont = new DefineFont();
// always set this to the largest font used
headers.fontPointSize = 8;
// set up the highlight or bold font
passFont.fontFamily = "Helvetica";
passFont.fontSize = 8;
passFont.isBold = true;
passFont.isItalic = false;
passFont.isUnderlined = false;
passFont.foreColor = BaseColor.BLACK;
headers.boldFont = passFont;
// now setup the normal text font
passFont.fontSize = 7;
passFont.isBold = false;
headers.normalFont = passFont;
headers.leftMargin = 10;
headers.bottomMargin = 25;
headers.rightMargin = 10;
headers.topMargin = 25;
headers.PageNumberSettings = HeaderFooter.PageNumbers.FooterPlacement;
headers.footerLine = "Page";
headers.headerLines = parmLines.ToArray();
pdfDoc.SetMargins(headers.leftMargin, headers.rightMargin, headers.topMargin + headers.headerheight, headers.bottomMargin + headers.footerHeight);
pdfDoc.Open();
// the new page is necessary due to a bug in in the current version of itextsharp
pdfDoc.NewPage();
... now your headers and footer will be handled automatically
Use the mapfile
command:
mapfile -t myArray < file.txt
The error is using for
-- the idiomatic way to loop over lines of a file is:
while IFS= read -r line; do echo ">>$line<<"; done < file.txt
See BashFAQ/005 for more details.
More options:
you can also change the group title by overriding "textColorSecondary"
In your styles.xml
<style name="AppTheme.NavigationView">
<item name="android:textColorSecondary">#FFFFFF</item>
</style>
In your layout
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:menu="@menu/activity_main_menu_drawer_drawer"
android:theme="@style/AppTheme.NavigationView"
app:itemIconTint="@color/colorPrimary"
app:itemTextColor="@color/white"/>
Try to find the exact line which causing this problem and then enforce UTF8 coding, this solution worked for me.
title.to_s.force_encoding("UTF-8")
You can use the --detach-keys
option when you run docker attach
to override the default CTRL+P, CTRL + Q sequence (that doesn't always work).
For example, when you run docker attach --detach-keys="ctrl-a" test
and you press CTRL+A you will exit the container, without killing it.
Other examples:
docker attach --detach-keys="ctrl-a,x" test
- press CTRL+A
and then X
to exitdocker attach --detach-keys="a,b,c" test
- press A
, then B
, then C
to exitExtract from the official documentation:
If you want, you can configure an override the Docker key sequence for detach. This is useful if the Docker default sequence conflicts with key sequence you use for other applications. There are two ways to define your own detach key sequence, as a per-container override or as a configuration property on your entire configuration.
To override the sequence for an individual container, use the --detach-keys="<sequence>"
flag with the docker attach command. The format of the <sequence>
is either a letter [a-Z]
, or the ctrl-
combined with any of the following:
These a
, ctrl-a
, X
, or ctrl-\\
values are all examples of valid key sequences. To configure a different configuration default key sequence for all containers, see Configuration file section.
Note: This works since docker version 1.10+ (at the time of this answer, the current version is 18.03)
Reading quickly through the source it seems that you're not far off. The following link should help (I did something similar but for FTP). For a file send from server to client, you start off with a file instance and an array of bytes. You then read the File into the byte array and write the byte array to the OutputStream which corresponds with the InputStream on the client's side.
http://www.rgagnon.com/javadetails/java-0542.html
Edit: Here's a working ultra-minimalistic file sender and receiver. Make sure you understand what the code is doing on both sides.
package filesendtest;
import java.io.*;
import java.net.*;
class TCPServer {
private final static String fileToSend = "C:\\test1.pdf";
public static void main(String args[]) {
while (true) {
ServerSocket welcomeSocket = null;
Socket connectionSocket = null;
BufferedOutputStream outToClient = null;
try {
welcomeSocket = new ServerSocket(3248);
connectionSocket = welcomeSocket.accept();
outToClient = new BufferedOutputStream(connectionSocket.getOutputStream());
} catch (IOException ex) {
// Do exception handling
}
if (outToClient != null) {
File myFile = new File( fileToSend );
byte[] mybytearray = new byte[(int) myFile.length()];
FileInputStream fis = null;
try {
fis = new FileInputStream(myFile);
} catch (FileNotFoundException ex) {
// Do exception handling
}
BufferedInputStream bis = new BufferedInputStream(fis);
try {
bis.read(mybytearray, 0, mybytearray.length);
outToClient.write(mybytearray, 0, mybytearray.length);
outToClient.flush();
outToClient.close();
connectionSocket.close();
// File sent, exit the main method
return;
} catch (IOException ex) {
// Do exception handling
}
}
}
}
}
package filesendtest;
import java.io.*;
import java.io.ByteArrayOutputStream;
import java.net.*;
class TCPClient {
private final static String serverIP = "127.0.0.1";
private final static int serverPort = 3248;
private final static String fileOutput = "C:\\testout.pdf";
public static void main(String args[]) {
byte[] aByte = new byte[1];
int bytesRead;
Socket clientSocket = null;
InputStream is = null;
try {
clientSocket = new Socket( serverIP , serverPort );
is = clientSocket.getInputStream();
} catch (IOException ex) {
// Do exception handling
}
ByteArrayOutputStream baos = new ByteArrayOutputStream();
if (is != null) {
FileOutputStream fos = null;
BufferedOutputStream bos = null;
try {
fos = new FileOutputStream( fileOutput );
bos = new BufferedOutputStream(fos);
bytesRead = is.read(aByte, 0, aByte.length);
do {
baos.write(aByte);
bytesRead = is.read(aByte);
} while (bytesRead != -1);
bos.write(baos.toByteArray());
bos.flush();
bos.close();
clientSocket.close();
} catch (IOException ex) {
// Do exception handling
}
}
}
}
Related
Byte array of unknown length in java
Edit: The following could be used to fingerprint small files before and after transfer (use SHA if you feel it's necessary):
public static String md5String(File file) {
try {
InputStream fin = new FileInputStream(file);
java.security.MessageDigest md5er = MessageDigest.getInstance("MD5");
byte[] buffer = new byte[1024];
int read;
do {
read = fin.read(buffer);
if (read > 0) {
md5er.update(buffer, 0, read);
}
} while (read != -1);
fin.close();
byte[] digest = md5er.digest();
if (digest == null) {
return null;
}
String strDigest = "0x";
for (int i = 0; i < digest.length; i++) {
strDigest += Integer.toString((digest[i] & 0xff)
+ 0x100, 16).substring(1).toUpperCase();
}
return strDigest;
} catch (Exception e) {
return null;
}
}
Even if that's a 7 years old question, people new to R should consider using the data.table, package.
A data.table is a data.frame so all you can do for/to a data.frame you can also do. But many think are ORDERS of magnitude faster with data.table.
vec <- 1:10
library(data.table)
DT <- data.table(start=c(1,3,5,7), end=c(2,6,7,9))
DT[,new:=apply(DT,1,function(row) mean(vec[ row[1] : row[2] ] ))]
Here is my example with bash script inside .gitconfig
alias section
[alias]
pushall = "!f(){ for i in `git remote`; do git push $i; done; };f"
There are a few things interacting here:
docker run your_image arg1 arg2
will replace the value of CMD
with arg1 arg2
. That's a full replacement of the CMD, not appending more values to it. This is why you often see docker run some_image /bin/bash
to run a bash shell in the container.
When you have both an ENTRYPOINT and a CMD value defined, docker starts the container by concatenating the two and running that concatenated command. So if you define your entrypoint to be file.sh
, you can now run the container with additional args that will be passed as args to file.sh
.
Entrypoints and Commands in docker have two syntaxes, a string syntax that will launch a shell, and a json syntax that will perform an exec. The shell is useful to handle things like IO redirection, chaining multiple commands together (with things like &&
), variable substitution, etc. However, that shell gets in the way with signal handling (if you've ever seen a 10 second delay to stop a container, this is often the cause) and with concatenating an entrypoint and command together. If you define your entrypoint as a string, it would run /bin/sh -c "file.sh"
, which alone is fine. But if you have a command defined as a string too, you'll see something like /bin/sh -c "file.sh" /bin/sh -c "arg1 arg2"
as the command being launched inside your container, not so good. See the table here for more on how these two options interact
The shell -c
option only takes a single argument. Everything after that would get passed as $1
, $2
, etc, to that single argument, but not into an embedded shell script unless you explicitly passed the args. I.e. /bin/sh -c "file.sh $1 $2" "arg1" "arg2"
would work, but /bin/sh -c "file.sh" "arg1" "arg2"
would not since file.sh
would be called with no args.
Putting that all together, the common design is:
FROM ubuntu:14.04
COPY ./file.sh /
RUN chmod 755 /file.sh
# Note the json syntax on this next line is strict, double quotes, and any syntax
# error will result in a shell being used to run the line.
ENTRYPOINT ["file.sh"]
And you then run that with:
docker run your_image arg1 arg2
There's a fair bit more detail on this at:
It's actually very straight forward.
Kotlin:
val jsonObj = JSONObject(response.errorBody()!!.charStream().readText())
responseInterface.onFailure(jsonObj.getString("msg"))
Java:
if(response.errorBody()!=null){
JSONObject jsonObj = new JSONObject(TextStreamsKt.readText(response.errorBody().charStream()));
responseInterface.onFailure(jsonObj.getString("msg"));
}else{
responseInterface.onFailure("you might want to return a generic error message.");
}
Tested on retrofit:2.5.0. Read the text from the charStream which will give you a String, then parse to JSONObject.
Adios.
if you want to run the command in async mode - and print the results. you can you this class:
public static class ExecuteCmd
{
/// <summary>
/// Executes a shell command synchronously.
/// </summary>
/// <param name="command">string command</param>
/// <returns>string, as output of the command.</returns>
public static void ExecuteCommandSync(object command)
{
try
{
// create the ProcessStartInfo using "cmd" as the program to be run, and "/c " as the parameters.
// Incidentally, /c tells cmd that we want it to execute the command that follows, and then exit.
System.Diagnostics.ProcessStartInfo procStartInfo = new System.Diagnostics.ProcessStartInfo("cmd", "/c " + command);
// The following commands are needed to redirect the standard output.
//This means that it will be redirected to the Process.StandardOutput StreamReader.
procStartInfo.RedirectStandardOutput = true;
procStartInfo.UseShellExecute = false;
// Do not create the black window.
procStartInfo.CreateNoWindow = true;
// Now we create a process, assign its ProcessStartInfo and start it
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo = procStartInfo;
proc.Start();
// Get the output into a string
string result = proc.StandardOutput.ReadToEnd();
// Display the command output.
Console.WriteLine(result);
}
catch (Exception objException)
{
// Log the exception
Console.WriteLine("ExecuteCommandSync failed" + objException.Message);
}
}
/// <summary>
/// Execute the command Asynchronously.
/// </summary>
/// <param name="command">string command.</param>
public static void ExecuteCommandAsync(string command)
{
try
{
//Asynchronously start the Thread to process the Execute command request.
Thread objThread = new Thread(new ParameterizedThreadStart(ExecuteCommandSync));
//Make the thread as background thread.
objThread.IsBackground = true;
//Set the Priority of the thread.
objThread.Priority = ThreadPriority.AboveNormal;
//Start the thread.
objThread.Start(command);
}
catch (ThreadStartException )
{
// Log the exception
}
catch (ThreadAbortException )
{
// Log the exception
}
catch (Exception )
{
// Log the exception
}
}
}
None of these answers were sufficient for me, using Jenkins CI v.1.555, Git Client plugin v.1.6.4, and Git plugin 2.0.4.
I wanted a job to build for one Git repository for one specific, fixed (i.e., non-parameterized) tag. I had to cobble together a solution from the various answers plus the "build a Git tag" blog post cited by Thilo.
git push --tags
+refs/tags/*:refs/remotes/origin/tags/*
*/tags/<TAG_TO_BUILD>
(replacing <TAG_TO_BUILD>
with your actual tag name).Adding the Refspec for me turned out to be critical. Although it seemed the git repositories were fetching all the remote information by default when I left it blank, the Git plugin would nevertheless completely fail to find my tag. Only when I explicitly specified "get the remote tags" in the Refspec field was the Git plugin able to identify and build from my tag.
Update 2014-5-7: Unfortunately, this solution does come with an undesirable side-effect for Jenkins CI (v.1.555) and the Git repository push notification mechanism à la Stash Webhook to Jenkins: any time any branch on the repository is updated in a push, the tag build jobs will also fire again. This leads to a lot of unnecessary re-builds of the same tag jobs over and over again. I have tried configuring the jobs both with and without the "Force polling using workspace" option, and it seemed to have no effect. The only way I could prevent Jenkins from making the unnecessary builds for the tag jobs is to clear the Refspec field (i.e., delete the +refs/tags/*:refs/remotes/origin/tags/*
).
If anyone finds a more elegant solution, please edit this answer with an update. I suspect, for example, that maybe this wouldn't happen if the refspec specifically was +refs/tags/<TAG TO BUILD>:refs/remotes/origin/tags/<TAG TO BUILD>
rather than the asterisk catch-all. For now, however, this solution is working for us, we just remove the extra Refspec after the job succeeds.
categories_posts
and categories_news
start with substring 'categories_' then it is enough to check that developer_configurations_cms.cfg_name_unique
starts with 'categories' instead of check if it contains the given substring. Translating all that into a query:
SELECT *
FROM developer_configurations_cms
WHERE developer_configurations_cms.cat_id = '1'
AND developer_configurations_cms.cfg_variables LIKE '%parent_id=2%'
AND developer_configurations_cms.cfg_name_unique NOT LIKE 'categories%'
Another possibility:
However, the button is square, and that is not what we want. Create an IBOutlet with a reference to this button and add the following to the viewDidLoad method:
[buttonOutlet.layer setCornerRadius:7.0f];
[buttonOutlet.layer setClipToBounds:YES];
Don't forget to import QuartzCore.h