Change key in Project > Build Setting "typecheck calls to printf/scanf : NO"
Explanation : [How it works]
Check calls to printf and scanf, etc., to make sure that the arguments supplied have types appropriate to the format string specified, and that the conversions specified in the format string make sense.
Hope it work
Other warning
objective c implicit conversion loses integer precision 'NSUInteger' (aka 'unsigned long') to 'int
Change key "implicit conversion to 32Bits Type > Debug > *64 architecture : No"
[caution: It may void other warning of 64 Bits architecture conversion].
But this is obviously performing a 'string' comparison
No. The string will be automatically cast into a DATETIME value.
See 11.2. Type Conversion in Expression Evaluation.
When an operator is used with operands of different types, type conversion occurs to make the operands compatible. Some conversions occur implicitly. For example, MySQL automatically converts numbers to strings as necessary, and vice versa.
Another common use is for std containers to do equality comparison on key values inside custom objects
class Foo
{
public: int val;
};
class Comparer { public:
bool operator () (Foo& a, Foo&b) const {
return a.val == b.val;
};
class Blah
{
std::set< Foo, Comparer > _mySet;
};
gero's solution worked for me.
In Visual Studios 2012, take the following steps.
- Go to Solution Explorer
- Right click on your project
- Go to Properties
- Configuration Properties -> General
- Platform Toolset -> change to Windows7.1SDK
The general rule is that popup blockers will engage if window.open
or similar is invoked from javascript that is not invoked by direct user action. That is, you can call window.open
in response to a button click without getting hit by the popup blocker, but if you put the same code in a timer event it will be blocked. Depth of call chain is also a factor - some older browsers only look at the immediate caller, newer browsers can backtrack a little to see if the caller's caller was a mouse click etc. Keep it as shallow as you can to avoid the popup blockers.
Double colon i.e. ::
operator is introduced in Java 8 as a method reference. Method reference is a form of lambda expression which is used to refer the existing method by its name.
classname::methodName
ex:-
stream.forEach(element -> System.out.println(element))
By using Double Colon ::
stream.forEach(System.out::println(element))
ab, siege, tsung, httperf, Trample, Pylot, request-log-analyzer, perftools
declare your asyncTask in your activity:
private YourAsyncTask mTask;
instantiate it like this:
mTask = new YourAsyncTask().execute();
kill/cancel it like this:
mTask.cancel(true);
In Excel for Mac 2016 at least,if you place the labels in any spot on the graph and are looking to move them anywhere else (in this case above the bars), select:
Chart Design->Add Chart Element->Data Labels -> More Data Label Options
then you can grab each individual label and pull it where you would like it.
This is what happens when you store your dates and times in a non-standard format. Working with them become problematic.
$datetime = DateTime::createFromFormat('YmdHi', '201308131830');
echo $datetime->format('D');
This is quick-and-dirty (and not formally valid HTML5), but it seems to work -- and it is inline as per the question:
<table border='1' style='border-collapse:collapse'>
No further styling of <tr>
/<td>
tags is required (for a basic table grid).
In C/C++ you have header files (*.H). There you declare your functions/classes. So for example you will have to #include "second.h"
to your main.cpp
file.
In second.h
you just declare like this void yourFunction();
In second.cpp
you implement it like
void yourFunction() {
doSomethng();
}
Don't forget to #include "second.h"
also in the beginning of second.cpp
Hope this helps:)
Look at the Subfloats section of http://en.wikibooks.org/wiki/LaTeX/Floats,_Figures_and_Captions.
\begin{figure}[htp]
\centering
\label{figur}\caption{equation...}
\subfloat[Subcaption 1]{\label{figur:1}\includegraphics[width=60mm]{explicit3185.eps}}
\subfloat[Subcaption 2]{\label{figur:2}\includegraphics[width=60mm]{explicit3183.eps}}
\\
\subfloat[Subcaption 3]{\label{figur:3}\includegraphics[width=60mm]{explicit1501.eps}}
\subfloat[Subcaption 4]{\label{figur:4}\includegraphics[width=60mm]{explicit23185.eps}}
\\
\subfloat[Subcaption 5]{\label{figur:5}\includegraphics[width=60mm]{explicit23183.eps}}
\subfloat[Subcaption 6]{\label{figur:6}\includegraphics[width=60mm]{explicit21501.eps}}
\end{figure}
There was an answer here: Secure distribution of NodeJS applications. Raynos said: V8 allows you to pre-compile JavaScript.
Ok I found out the answer myself. Much like npm cache clean
, Yarn also has its own
yarn cache clean
Swift 3
In Info.plist
set View controller-based status bar appearance
to NO
And call UIApplication.shared.isStatusBarHidden = true
Postgres hasn't implemented an equivalent to INSERT OR REPLACE
. From the ON CONFLICT
docs (emphasis mine):
It can be either DO NOTHING, or a DO UPDATE clause specifying the exact details of the UPDATE action to be performed in case of a conflict.
Though it doesn't give you shorthand for replacement, ON CONFLICT DO UPDATE
applies more generally, since it lets you set new values based on preexisting data. For example:
INSERT INTO users (id, level)
VALUES (1, 0)
ON CONFLICT (id) DO UPDATE
SET level = users.level + 1;
The padding options padx
and pady
of the grid
and pack
methods can take a 2-tuple that represent the left/right and top/bottom padding.
Here's an example:
import tkinter as tk
class MyApp():
def __init__(self):
self.root = tk.Tk()
l1 = tk.Label(self.root, text="Hello")
l2 = tk.Label(self.root, text="World")
l1.grid(row=0, column=0, padx=(100, 10))
l2.grid(row=1, column=0, padx=(10, 100))
app = MyApp()
app.root.mainloop()
I use WinForms and my way to use File.Exists(string path) is the next one:
public bool FileExists(string fileName)
{
var workingDirectory = Environment.CurrentDirectory;
var file = $"{workingDirectory}\{fileName}";
return File.Exists(file);
}
fileName must include the extension like myfile.txt
Not quite sure why everyone is giving you a hard time for wanting to do this - there are several scenarios where you'd want a fixed size initialised list. And you've correctly deduced that arrays are sensible in these cases.
import array
verts=array.array('i',(0,)*1000)
For the non-pythonistas, the (0,)*1000
term is creating a tuple containing 1000 zeros. The comma forces python to recognise (0)
as a tuple, otherwise it would be evaluated as 0.
I've used a tuple instead of a list because they are generally have lower overhead.
Here's the whole code snippet needed:
$queried_object = get_queried_object();
$term_id = $queried_object->term_id;
You can check out my small free utility for service create\edit\delete operations. Here is create example:
Go to Service -> Modify -> Create
Executable file (google drive): [Download]
Source code: [Download]
Blog post: [BlogLink]
Service editor class: WinServiceUtils.cs
Why are you writing the code for calculating the distance by yourself?
Check the api's in Location class
In distributable software, I dont want my customers mucking about in the database by themselves. The program reads and writes it all by itself. The only reason for a user to touch the DB file is to take a backup copy. Therefore I have named it whatever_records.db
The simple .db extension tells the user that it is a binary data file and that's all they have to know. Calling it .sqlite invites the interested user to open it up and mess something up!
Totally depends on your usage scenario I suppose.
If you want to load the txt file with specified column name, you can use the code below. It worked for me.
import pandas as pd
data = pd.read_csv('file_name.txt', sep = "\t", names = ['column1_name','column2_name', 'column3_name'])
Most easy way: sort files with sort(1) and then use diff(1).
I'm surprised nobody pointed out JSON's []
method, which makes it very easy and transparent to decode and encode from/to JSON.
If object is string-like, parse the string and return the parsed result as a Ruby data structure. Otherwise generate a JSON text from the Ruby data structure object and return it.
Consider this:
require 'json'
hash = {"val":"test","val1":"test1","val2":"test2"} # => {:val=>"test", :val1=>"test1", :val2=>"test2"}
str = JSON[hash] # => "{\"val\":\"test\",\"val1\":\"test1\",\"val2\":\"test2\"}"
str
now contains the JSON encoded hash
.
It's easy to reverse it using:
JSON[str] # => {"val"=>"test", "val1"=>"test1", "val2"=>"test2"}
Custom objects need to_s
defined for the class, and inside it convert the object to a Hash then use to_json
on it.
FWIW, here is my approach = a simple one that works for me:
<div id="outerDivWrapper">
<div id="outerDiv">
<div id="scrollableContent">
blah blah blah
</div>
</div>
</div>
html, body {
height: 100%;
margin: 0em;
}
#outerDivWrapper, #outerDiv {
height: 100%;
margin: 0em;
}
#scrollableContent {
height: 100%;
margin: 0em;
overflow-y: auto;
}
In the <system.web>
element, add the following element:
<httpCookies requireSSL="true" />
However, if you have a <forms>
element in your system.web\authentication
block, then this will override the setting in httpCookies
, setting it back to the default false
.
In that case, you need to add the requireSSL="true"
attribute to the forms element as well.
So you will end up with:
<system.web>
<authentication mode="Forms">
<forms requireSSL="true">
<!-- forms content -->
</forms>
</authentication>
</system.web>
You have to set LANG as well, look for files named 'sp1*.msb', and set for instance export LANG=us if you find a file name sp1us.msb. The error message could sure be better :)
Why do you need to state both 'x' and 'y' before the ':'?
Because a lambda is (conceptually) the same as a function, just written inline. Your example is equivalent to
def f(x, y) : return x + y
just without binding it to a name like f
.
Also how do you make it return multiple arguments?
The same way like with a function. Preferably, you return a tuple:
lambda x, y: (x+y, x-y)
Or a list, or a class, or whatever.
The thing with self.entry_1.bind
should be answered by Demosthenex.
<a href="#" onclick="SomeFunction()" class="SomeClass">sth.</a>
this was my anchor tag. so return false on onClick="" event is not usefull here. I just removed href="#" property and it worked for me just like below
<a onclick="SomeFunction()" class="SomeClass">sth.</a>
and i needed to add this css.
.SomeClass
{
cursor: pointer;
}
The simplest way that doesn't require third party libraries it to create a URL object and then call either openConnection or openStream on it. Note that this is a pretty basic API, so you won't have a lot of control over the headers.
I don't know if this is still relevant. But when I had similar issue this is how I resolved it.
Where you need to clear an uncontrolled form you simply do this after submission.
this.<ref-name-goes-here>.setState({value: ''});
Hope this helps.
If you are optimizing your page for IE8 or newer, you should really consider whether you need jquery or not. Modern browsers have many assets natively which jquery provides.
If you care for performance, you can have incredible performance benefits (2-10 faster) using native javascript: http://jsperf.com/jquery-vs-native-selector-and-element-style/2
I transformed a div-tagcloud from jquery to native javascript (IE8+ compatible), the results are impressive. 4 times faster with just a little overhead.
Number of lines Execution Time
Jquery version : 340 155ms
Native version : 370 27ms
You Might Not Need Jquery provides a really nice overview, which native methods replace for which browser version.
http://youmightnotneedjquery.com/
Appendix: Further speed comparisons how native methods compete to jquery
You can use the :not
filter selector:
$('foo:not(".someClass")')
Or not()
method:
$('foo').not(".someClass")
More Info:
What helped me was to add an event directly to this page and click around for myself! Open up your console in developer tools/Firebug etc and paste this:
document.addEventListener('click', function(e) {_x000D_
console.log(_x000D_
'page: ' + e.pageX + ',' + e.pageY,_x000D_
'client: ' + e.clientX + ',' + e.clientY,_x000D_
'screen: ' + e.screenX + ',' + e.screenY)_x000D_
}, false);
_x000D_
Click anywhere
_x000D_
With this snippet, you can track your click position as you scroll, move the browser window, etc.
Notice that pageX/Y and clientX/Y are the same when you're scrolled all the way to the top!
This answer assumes you have some JavaScript that you don't want to convert to TypeScript, but you want to benefit from type checking with minimal changes to your .js
.
A .d.ts
file is very much like a C or C++ header file. Its purpose is to define an interface. Here is an example:
mashString.d.ts
/** Makes a string harder to read. */
declare function mashString(
/** The string to obscure */
str: string
):string;
export = mashString;
mashString.js
// @ts-check
/** @type {import("./mashString")} */
module.exports = (str) => [...str].reverse().join("");
main.js
// @ts-check
const mashString = require("./mashString");
console.log(mashString("12345"));
The relationship here is: mashString.d.ts
defines an interface, mashString.js
implements the interface and main.js
uses the interface.
To get the type checking to work you add // @ts-check
to your .js
files.
But this only checks that main.js
uses the interface correctly. To also ensure that mashString.js
implements it correctly we add /** @type {import("./mashString")} */
before the export.
You can create your initial .d.ts
files using tsc -allowJs main.js -d
then edit them as required manually to improve the type checking and documentation.
In most cases the implementation and interface have the same name, here mashString
. But you can have alternative implementations. For example we could rename mashString.js
to reverse.js
and have an alternative encryptString.js
.
8 years late. But I like:
import os
import requests
os.environ['HTTP_PROXY'] = os.environ['http_proxy'] = 'http://http-connect-proxy:3128/'
os.environ['HTTPS_PROXY'] = os.environ['https_proxy'] = 'http://http-connect-proxy:3128/'
os.environ['NO_PROXY'] = os.environ['no_proxy'] = '127.0.0.1,localhost,.local'
r = requests.get('https://example.com') # , verify=False
If the variance of the input is statistically distributed (e.g. normal, log-normal, etc.) then reservoir sampling is a reasonable way of estimating percentiles/medians from an arbitrarily long stream of numbers.
int n = 0; // Running count of elements observed so far
#define SIZE 10000
int reservoir[SIZE];
while(streamHasData())
{
int x = readNumberFromStream();
if (n < SIZE)
{
reservoir[n++] = x;
}
else
{
int p = random(++n); // Choose a random number 0 >= p < n
if (p < SIZE)
{
reservoir[p] = x;
}
}
}
"reservoir" is then a running, uniform (fair), sample of all input - regardless of size. Finding the median (or any percentile) is then a straight-forward matter of sorting the reservoir and polling the interesting point.
Since the reservoir is fixed size, the sort can be considered to be effectively O(1) - and this method runs with both constant time and memory consumption.
If you just want to snag the schema and make an empty table out of it, use a false predicate, like so:
SELECT * INTO myNewTable FROM myView WHERE 1=2
one of the other tool (besides file) you can use is xdg-mime
eg xdg-mime query filetype <file>
if you have yum,
yum install xdg-utils.noarch
An example comparison of xdg-mime and file on a Subrip(subtitles) file
$ xdg-mime query filetype subtitles.srt
application/x-subrip
$ file --mime-type subtitles.srt
subtitles.srt: text/plain
in the above file only show it as plain text.
Reformat affects the whole source code and may rebreak your lines, while Correct Indentation only affects the whitespace at the beginning of the lines.
There is a simple hack to this:
Insert a hidden input field in the form with an entity which only occur in the character set the server your posting (or doing a GET) to accepts.
Example: If the form is located on a server serving ISO-8859-1 and the form will post to a server expecting UTF-8 insert something like this in the form:
<input name="iehack" type="hidden" value="☠" />
IE will then "detect" that the form contains a UTF-8 character and use UTF-8 when you POST or GET. Strange, but it does work.
Use nl
like this:
nl filename
From man nl
:
Write each FILE to standard output, with line numbers added. With no FILE, or when FILE is -, read standard input.
The problem is your query returned false
meaning there was an error in your query. After your query you could do the following:
if (!$result) {
die(mysqli_error($link));
}
Or you could combine it with your query:
$results = mysqli_query($link, $query) or die(mysqli_error($link));
That will print out your error.
Also... you need to sanitize your input. You can't just take user input and put that into a query. Try this:
$query = "SELECT * FROM shopsy_db WHERE name LIKE '%" . mysqli_real_escape_string($link, $searchTerm) . "%'";
In reply to: Table 'sookehhh_shopsy_db.sookehhh_shopsy_db' doesn't exist
Are you sure the table name is sookehhh_shopsy_db? maybe it's really like users or something.
Set the value of the input
to null
on each onclick
event. This will reset the input
's value and trigger the onchange
event even if the same path is selected.
input.onclick = function () {
this.value = null;
};
input.onchange = function () {
alert(this.value);
};?
Here's a DEMO.
Note: It's normal if your file is prefixed with 'C:\fakepath\'. That's a security feature preventing JavaScript from knowing the file's absolute path. The browser still knows it internally.
I had the same problem, I think in Chart.js 2.x.x the approach is slightly different like below.
ticks: {
callback: function(label, index, labels) {
return label/1000+'k';
}
}
More in details
var options = {
scales: {
yAxes: [
{
ticks: {
callback: function(label, index, labels) {
return label/1000+'k';
}
},
scaleLabel: {
display: true,
labelString: '1k = 1000'
}
}
]
}
}
The .indexOf()
method has an optional second parameter that specifies the index to start searching from, so you can call it in a loop to find all instances of a particular value:
function getAllIndexes(arr, val) {
var indexes = [], i = -1;
while ((i = arr.indexOf(val, i+1)) != -1){
indexes.push(i);
}
return indexes;
}
var indexes = getAllIndexes(Cars, "Nano");
You don't really make it clear how you want to use the indexes, so my function returns them as an array (or returns an empty array if the value isn't found), but you could do something else with the individual index values inside the loop.
UPDATE: As per VisioN's comment, a simple for loop would get the same job done more efficiently, and it is easier to understand and therefore easier to maintain:
function getAllIndexes(arr, val) {
var indexes = [], i;
for(i = 0; i < arr.length; i++)
if (arr[i] === val)
indexes.push(i);
return indexes;
}
This can be confusing especially when you are not passing any argument to the method. So what gives?
When you call a method on a class (such as work()
in this case), Python automatically passes self as the first argument.
Lets read that one more time:
When you call a method on a class (such as work()
in this case), Python automatically passes self as the first argument
So here Python is saying, hey I can see that work()
takes 0 positional arguments (because you have nothing inside the parenthesis) but you know that the self
argument is still being passed automatically when the method is called. So you better fix this and put that self
keyword back in.
Adding self
should resolve the problem. work(self)
class KeyStatisticCollection(DataDownloadUtilities.DataDownloadCollection):
def GenerateAddressStrings(self):
pass
def worker(self):
pass
def DownloadProc(self):
pass
I changed the memory limit from .htaccess and this problem got resolved.
I was trying to scan my website from one of the antivirus plugin and there I was getting this problem. I increased memory by pasting this in my .htaccess file in Wordpress folder:
php_value memory_limit 512M
After scan was over, I removed this line to make the size as it was before.
That's because someone else is accessing the database. Put the database into single user mode then rename it.
This link might help:
http://msdn.microsoft.com/en-IN/library/ms345378(v=sql.105).aspx
and also:
http://msdn.microsoft.com/en-us/library/ms345378.aspx
It forces the browser to use hardware acceleration to access the device’s graphical processing unit (GPU) to make pixels fly. Web applications, on the other hand, run in the context of the browser, which lets the software do most (if not all) of the rendering, resulting in less horsepower for transitions. But the Web has been catching up, and most browser vendors now provide graphical hardware acceleration by means of particular CSS rules.
Using -webkit-transform: translate3d(0,0,0);
will kick the GPU into action for the CSS transitions, making them smoother (higher FPS).
Note: translate3d(0,0,0)
does nothing in terms of what you see. It moves the object by 0px in x,y and z axis. It's only a technique to force the hardware acceleration.
Good read here: http://www.smashingmagazine.com/2012/06/21/play-with-hardware-accelerated-css/
No, there's no direct not operator. At least not the way you hope for.
You can use a zero-width negative lookahead, however:
\((?!2001)[0-9a-zA-z _\.\-:]*\)
The (?!...)
part means "only match if the text following (hence: lookahead) this doesn't (hence: negative) match this. But it doesn't actually consume the characters it matches (hence: zero-width).
There are actually 4 combinations of lookarounds with 2 axes:
You can create a session:
import boto3
session = boto3.Session(
aws_access_key_id=settings.AWS_SERVER_PUBLIC_KEY,
aws_secret_access_key=settings.AWS_SERVER_SECRET_KEY,
)
Then use that session to get an S3 resource:
s3 = session.resource('s3')
rm -rf some_dir
-r "recursive" -f "force" (suppress confirmation messages)
Be careful!
In New Xampp
All you have to do is to edit the file:
C:\xampp\apache\conf\extra\httpd-xampp.conf
and go to Directory tag as below:
<Directory "C:/xampp/phpMyAdmin">
and then change
Require local
To
Require all granted
in the Directory tag.
Restart the Xampp. That's it!
An inner class is a friend of the class it is defined within.
So, yes; an object of type Outer::Inner
can access the member variable var
of an object of type Outer
.
Unlike Java though, there is no correlation between an object of type Outer::Inner
and an object of the parent class. You have to make the parent child relationship manually.
#include <string>
#include <iostream>
class Outer
{
class Inner
{
public:
Inner(Outer& x): parent(x) {}
void func()
{
std::string a = "myconst1";
std::cout << parent.var << std::endl;
if (a == MYCONST)
{ std::cout << "string same" << std::endl;
}
else
{ std::cout << "string not same" << std::endl;
}
}
private:
Outer& parent;
};
public:
Outer()
:i(*this)
,var(4)
{}
Outer(Outer& other)
:i(other)
,var(22)
{}
void func()
{
i.func();
}
private:
static const char* const MYCONST;
Inner i;
int var;
};
const char* const Outer::MYCONST = "myconst";
int main()
{
Outer o1;
Outer o2(o1);
o1.func();
o2.func();
}
import urllib, urllib2, cookielib
username = 'myuser'
password = 'mypassword'
cj = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
login_data = urllib.urlencode({'username' : username, 'j_password' : password})
opener.open('http://www.example.com/login.php', login_data)
resp = opener.open('http://www.example.com/hiddenpage.php')
print resp.read()
resp.read()
is the straight html of the page you want to open, and you can use opener
to view any page using your session cookie.
How is the HashMap declaration expressed in that scope? It should be:
HashMap<String, ArrayList> dictMap
If not, it is assumed to be Objects.
For instance, if your code is:
HashMap dictMap = new HashMap<String, ArrayList>();
...
ArrayList current = dictMap.get(dictCode);
that will not work. Instead you want:
HashMap<String, ArrayList> dictMap = new HashMap<String, Arraylist>();
...
ArrayList current = dictMap.get(dictCode);
The way generics work is that the type information is available to the compiler, but is not available at runtime. This is called type erasure. The implementation of HashMap (or any other generics implementation) is dealing with Object. The type information is there for type safety checks during compile time. See the Generics documentation.
Also note that ArrayList
is also implemented as a generic class, and thus you might want to specify a type there as well. Assuming your ArrayList
contains your class MyClass
, the line above might be:
HashMap<String, ArrayList<MyClass>> dictMap
Workaround....
In VS 2015 Professional (and probably other versions). Go to Tools / Options / Environment / Fonts and Colours. In the "Show Settings For" drop-down, select "CodeLens" Choose the smallest font you can find e.g. Calibri 6. Change the foreground colour to your editor foreground colour (say "White") Click OK.
If your local directory has git initialized and you have not committed the changes that include the delete, you can use git checkout -f
to throw away local changes.
You could use the substr
function to return a substring starting from the 5th character:
$str = "The quick brown fox jumps over the lazy dog."
$str2 = substr($str, 4); // "quick brown fox jumps over the lazy dog."
I might understand the question incorrectly, but if you want to declare an array of a certain shape but with nothing inside, the following might be helpful:
Initialise empty array:
>>> a = np.zeros((0,3)) #or np.empty((0,3)) or np.array([]).reshape(0,3)
>>> a
array([], shape=(0, 3), dtype=float64)
Now you can use this array to append rows of similar shape to it. Remember that a numpy array is immutable, so a new array is created for each iteration:
>>> for i in range(3):
... a = np.vstack([a, [i,i,i]])
...
>>> a
array([[ 0., 0., 0.],
[ 1., 1., 1.],
[ 2., 2., 2.]])
np.vstack and np.hstack is the most common method for combining numpy arrays, but coming from Matlab I prefer np.r_ and np.c_:
Concatenate 1d:
>>> a = np.zeros(0)
>>> for i in range(3):
... a = np.r_[a, [i, i, i]]
...
>>> a
array([ 0., 0., 0., 1., 1., 1., 2., 2., 2.])
Concatenate rows:
>>> a = np.zeros((0,3))
>>> for i in range(3):
... a = np.r_[a, [[i,i,i]]]
...
>>> a
array([[ 0., 0., 0.],
[ 1., 1., 1.],
[ 2., 2., 2.]])
Concatenate columns:
>>> a = np.zeros((3,0))
>>> for i in range(3):
... a = np.c_[a, [[i],[i],[i]]]
...
>>> a
array([[ 0., 1., 2.],
[ 0., 1., 2.],
[ 0., 1., 2.]])
You would have got this Exception while doing a GET
on http://localhost:8080/projectname/login
As Vinay has correctly stated you can definitely use
@RequestMapping(value = "/login", method = RequestMethod.GET)
public String displayLogin(Model model) {
model.addAttribute("login", new Login());
return "login";
}
But I am going to provide some alternative syntax which I think you were trying with Spring 3.0.
You can also achieve the above functionality with
@RequestMapping(value = "/login", method = RequestMethod.GET)
public String displayLogin(Login loginModel) {
return "login";
}
and it login.jsp
(assuming you are using InternalResourceViewResolver
) you can have
<form:form method="POST" action="login.htm" modelAttribute="login">
Notice : modelAttribute is login
and not loginModel
. It is as per the class name you provide in argument. But if you want to use loginModel
as modelAttribute is jsp you can do the following
@RequestMapping(value = "/login", method = RequestMethod.GET)
public String displayLogin(@ModelAttribute("loginModel")Login loginModel) {
return "login";
}
and jsp would have
<form:form method="POST" action="login.htm" modelAttribute="loginModel">
I know there are just different ways for doing the same thing. But the most important point to note here -
Imp Note: When you add your model class in your methods argument (like public String displayLogin(Login loginModel)
) it is automatically created and added to your Model object (which is why you can directly access it in JSP without manually putting it in model). Then it will search your request if request has attributes that it can map with the new ModelObject create. If yes Spring will inject values from request parameters to your custom model object class (Login in this case).
You can test this by doing
@RequestMapping(value = "/login", method = RequestMethod.GET)
public String displayLogin(Login loginModel, Model model) {
System.out.println(model.asMap().get("login").equals(loginModel));
return "login";
}
Note : Above creating of new custom model object may not hold true if you have given @SessionAttributes({"login"})
. In this case it will get from session and populate values.
You can also try this:
import * as drawGauge from '../../../../js/d3gauge.js';
and just new drawGauge(this.opt);
in your ts-code. This solution works in project with angular-cli embedded into laravel on which I currently working on. In my case I try to import poliglot
library (btw: very good for translations) from node_modules:
import * as Polyglot from '../../../node_modules/node-polyglot/build/polyglot.min.js';
...
export class Lang
{
constructor() {
this.polyglot = new Polyglot({ locale: 'en' });
...
}
...
}
This solution is good because i don't need to COPY any files from node_modules
:) .
You can also look on this LIST of ways how to include libs in angular.
Please try this (if the browser does not support "onbeforeunload"):
jQuery(document).ready(function($) {
if (window.history && window.history.pushState) {
$(window).on('popstate', function() {
var hashLocation = location.hash;
var hashSplit = hashLocation.split("#!/");
var hashName = hashSplit[1];
if (hashName !== '') {
var hash = window.location.hash;
if (hash === '') {
alert('Back button was pressed.');
}
}
});
window.history.pushState('forward', null, './#forward');
}
});
I had just the one troublesome file with the changed permissions.
To roll it back individually, I just deleted it manually with rm <file>
and then did a checkout to pull a fresh copy.
Luckily I had not staged it yet.
If I had I could have run git reset -- <file>
before running git checkout -- <file>
You may also combine cut
and paste
:
paste <(cut -f2 file.txt) <(cut -f1 file.txt)
via comments: It's possible to avoid bashisms and remove one instance of cut by doing:
paste file.txt file.txt | cut -f2,3
long n = long.Parse(date.ToString("yyyyMMddHHmmss"));
Given your current table structure this is not currently possible in DynamoDB. The huge challenge is to understand that the Hash key of the table (partition) should be treated as creating separate tables. In some ways this is really powerful (think of partition keys as creating a new table for each user or customer, etc...).
Queries can only be done in a single partition. That's really the end of the story. This means if you want to query by date (you'll want to use msec since epoch), then all the items you want to retrieve in a single query must have the same Hash (partition key).
I should qualify this. You absolutely can scan
by the criterion you are looking for, that's no problem, but that means you will be looking at every single row in your table, and then checking if that row has a date that matches your parameters. This is really expensive, especially if you are in the business of storing events by date in the first place (i.e. you have a lot of rows.)
You may be tempted to put all the data in a single partition to solve the problem, and you absolutely can, however your throughput will be painfully low, given that each partition only receives a fraction of the total set amount.
The best thing to do is determine more useful partitions to create to save the data:
Do you really need to look at all the rows, or is it only the rows by a specific user?
Would it be okay to first narrow down the list by Month, and do multiple queries (one for each month)? Or by Year?
If you are doing time series analysis there are a couple of options, change the partition key to something computated on PUT
to make the query
easier, or use another aws product like kinesis which lends itself to append-only logging.
Yes, this is a 'new style' object. It was a feature introduced in python2.2.
New style objects have a different object model to classic objects, and some things won't work properly with old style objects, for instance, super()
, @property
and descriptors. See this article for a good description of what a new style class is.
SO link for a description of the differences: What is the difference between old style and new style classes in Python?
I had this same problem, but my call to $location was ALREADY within a digest. Calling $apply() just gave a $digest already in process error.
This trick worked (and be sure to inject $location
into your controller):
$timeout(function(){
$location...
},1);
Though no idea why this was necessary...
for executing that you must provide full path of that for example
/home/Manuel/mywrittenscript
Explanation of Serialize and Deserialize using Python
In python, pickle module is used for serialization. So, the serialization process is called pickling in Python. This module is available in Python standard library.
Serialization using pickle
import pickle
#the object to serialize
example_dic={1:"6",2:"2",3:"f"}
#where the bytes after serializing end up at, wb stands for write byte
pickle_out=open("dict.pickle","wb")
#Time to dump
pickle.dump(example_dic,pickle_out)
#whatever you open, you must close
pickle_out.close()
The PICKLE file (can be opened by a text editor like notepad) contains this (serialized data):
€}q (KX 6qKX 2qKX fqu.
Deserialization using pickle
import pickle
pickle_in=open("dict.pickle","rb")
get_deserialized_data_back=pickle.load(pickle_in)
print(get_deserialized_data_back)
Output:
{1: '6', 2: '2', 3: 'f'}
Not gonna happen with CSS only
Inline javascript
<a href='index.html'
onmouseover='this.style.textDecoration="none"'
onmouseout='this.style.textDecoration="underline"'>
Click Me
</a>
In a working draft of the CSS2 spec it was declared that you could use pseudo-classes inline like this:
<a href="http://www.w3.org/Style/CSS"
style="{color: blue; background: white} /* a+=0 b+=0 c+=0 */
:visited {color: green} /* a+=0 b+=1 c+=0 */
:hover {background: yellow} /* a+=0 b+=1 c+=0 */
:visited:hover {color: purple} /* a+=0 b+=2 c+=0 */
">
</a>
but it was never implemented in the release of the spec as far as I know.
http://www.w3.org/TR/2002/WD-css-style-attr-20020515#pseudo-rules
There are many ways to skip the first line. In addition to those said by Bakuriu, I would add:
with open(filename, 'r') as f:
next(f)
for line in f:
and:
with open(filename,'r') as f:
lines = f.readlines()[1:]
Unfortunately none of the solutions works for me.
ColorStateList themeColorStateList = new ColorStateList(
new int[][]{
new int[]{android.R.attr.state_pressed},
new int[]{android.R.attr.state_enabled},
new int[]{android.R.attr.state_focused, android.R.attr.state_pressed},
new int[]{-android.R.attr.state_enabled},
new int[]{} // this should be empty to make default color as we want
},
new int[]{
pressedFontColor,
defaultFontColor,
pressedFontColor,
disabledFontColor,
defaultFontColor
}
);
This is constructor from source code:
/**
* Creates a ColorStateList that returns the specified mapping from
* states to colors.
*/
public ColorStateList(int[][] states, int[] colors) {
mStateSpecs = states;
mColors = colors;
if (states.length > 0) {
mDefaultColor = colors[0];
for (int i = 0; i < states.length; i++) {
if (states[i].length == 0) {
mDefaultColor = colors[i];
}
}
}
}
Your submit button doesn't have a name. Add name="submit" to your submit button.
If you view source on the form in the browser, you'll see how it submits to self - the form's action attribute will contain the name of the current script - therefore when the form submits, it submits to itself. Edit for vanity sake!
No, the <select>
control is a system-level control, not a client-level control in IE. A few versions back it didn't even play nicely-with z-index, putting itself on top of virtually everything.
To do anything fancy you'll have to emulate the functionality using CSS and your own elements.
to set Oracle's Java SE Development Kit as the system default Java just download the latest Java SE Development Kit from here then create a directory somewhere you like in your file system for example /usr/java
now extract the files you just downloaded in that directory:
$ sudo tar xvzf jdk-8u5-linux-i586.tar.gz -C /usr/java
now to set your JAVA_HOME
environment variable:
$ JAVA_HOME=/usr/java/jdk1.8.0_05/
$ sudo update-alternatives --install /usr/bin/java java ${JAVA_HOME%*/}/bin/java 20000
$ sudo update-alternatives --install /usr/bin/javac javac ${JAVA_HOME%*/}/bin/javac 20000
make sure the Oracle's java is set as default java by:
$ update-alternatives --config java
you get something like this:
There are 2 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
* 0 /opt/java/jdk1.8.0_05/bin/java 20000 auto mode
1 /opt/java/jdk1.8.0_05/bin/java 20000 manual mode
2 /usr/lib/jvm/java-6-openjdk-i386/jre/bin/java 1061 manual mode
Press enter to keep the current choice[*], or type selection number:
pay attention to the asterisk before the numbers on the left and if the correct one is not set choose the correct one by typing the number of it and pressing enter. now test your java:
$ java -version
if you get something like the following, you are good to go:
java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) Server VM (build 25.5-b02, mixed mode)
also note that you might need root permission or be in sudoers group to be able to do this. I've tested this solution on both ubuntu 12.04 and Debian wheezy and it works in both of them.
Sure you can.
You can use case x ... y for the range
Example:
#include <iostream.h>
#include <stdio.h>
int main()
{
int Answer;
cout << "How many cars do you have?";
cin >> Answer;
switch (Answer)
{
case 1 ... 4:
cout << "You need more cars. ";
break;
case 5 ... 8:
cout << "Now you need a house. ";
break;
default:
cout << "What are you? A peace-loving hippie freak? ";
}
cout << "\nPress ENTER to continue... " << endl;
getchar();
return 0;
}
Make sure you have "-std=c++0x" flag enabled within your compiler
Extract jar file for ex. with winrar and use CAVAJ:
Cavaj Java Decompiler is a graphical freeware utility that reconstructs Java source code from CLASS files.
here is video tutorial if you need: https://www.youtube.com/watch?v=ByLUeem7680
add the following to the "floating" view
position: 'absolute'
you may also need to add a top and left value for positioning
see this example: https://rnplay.org/apps/OjzcxQ/edit
javac command does not follow a recursive compilation process, so you have either specify each directory when running command, or provide a text file with directories you want to include:
javac -classpath "${CLASSPATH}" @java_sources.txt
Here's the obligatory dplyr
answer in case somebody wants to do this with the pipe.
test %>%
select(sort(names(.)))
The selected answer authored by Anurag is only partially correct. Due to some internals of jQuery's event handling, the proposed bindFirst function will not work if you have a mix of handlers with and without filters (ie: $(document).on("click", handler) vs $(document).on("click", "button", handler)).
The issue is that jQuery will place (and expect) that the first elements in the handler array will be these filtered handlers, so placing our event without a filter at the beginning breaks this logic and things start to fall apart. The updated bindFirst function should be as follows:
$.fn.bindFirst = function (name, fn) {
// bind as you normally would
// don't want to miss out on any jQuery magic
this.on(name, fn);
// Thanks to a comment by @Martin, adding support for
// namespaced events too.
this.each(function () {
var handlers = $._data(this, 'events')[name.split('.')[0]];
// take out the handler we just inserted from the end
var handler = handlers.pop();
// get the index of the first handler without a selector
var firstNonDelegate = handlers.first(function(h) { return !h.selector; });
var index = firstNonDelegate ? handlers.indexOf(firstNonDelegate)
: handlers.length; // Either all handlers are selectors or we have no handlers
// move it at the beginning
handlers.splice(index, 0, handler);
});
};
Just use a onchnage Event
for select box.
<select id="selectbox" name="" onchange="javascript:location.href = this.value;">
<option value="https://www.yahoo.com/" selected>Option1</option>
<option value="https://www.google.co.in/">Option2</option>
<option value="https://www.gmail.com/">Option3</option>
</select>
And if selected option to be loaded at the page load then add some javascript code
<script type="text/javascript">
window.onload = function(){
location.href=document.getElementById("selectbox").value;
}
</script>
for jQuery: Remove the onchange event from <select>
tag
jQuery(function () {
// remove the below comment in case you need chnage on document ready
// location.href=jQuery("#selectbox").val();
jQuery("#selectbox").change(function () {
location.href = jQuery(this).val();
})
})
Thirding TagLib Sharp.
TagLib.File f = TagLib.File.Create(path);
f.Tag.Album = "New Album Title";
f.Save();
FYI: it looks like you might have an infinite loop in your example...
if cnt > 0 and len(aStr) > 1:
while cnt > 0:
aStr = aStr[1:]+aStr[0]
cnt += 1
cnt
is greater than 0cnt
is greater than 0cnt
by 1The net result is that cnt
will always be greater than 0 and the loop will never exit.
You have to enable mod_rewrite in apache to make clean urls to work
if mod_rewrite is not in phpinfo you have to install it by
sudo a2enmod rewrite
sudo apache2ctl -l
You need to replace the occurrence of AllowOverride none
to AllowOverride all
( in /etc/apache2/sites-enabled/000-default)
Restart Apache
sudo service apache2 restart
In Magento’s admin go to System > Configuration > Web > search engine Optimization
and change “Use Web Server Rewrites
” to Yes
This worked for me.
First add this android:windowSoftInputMode="stateHidden"
in your android manifest file, under your activity. like below:
<activity ... android:windowSoftInputMode="stateHidden">
Then on onCreate method of youractivity, add the foloowing code:
EditText editText = (EditText)findViewById(R.id.edit_text);
edit_text.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
v.onTouchEvent(event);
InputMethodManager inputMethod = (InputMethodManager)v.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
if (inputMethod!= null) {
inputMethod.hideSoftInputFromWindow(v.getWindowToken(), 0);
}
return true;
}
});
Then if you want the pointer to be visible add this on your xml android:textIsSelectable="true"
.
This will make the pointer visible. In this way the keyboard will not popup when your activity starts and also will be hidden when you click on the edittext.
Why not ask the U.S. Naval Observatory, the official timekeeper of the United States Navy?
import requests
from lxml import html
page = requests.get('http://tycho.usno.navy.mil/cgi-bin/timer.pl')
tree = html.fromstring(page.content)
print(tree.xpath('//html//body//h3//pre/text()')[1])
If you live in the D.C. area (like me) the latency might not be too bad...
I try GET 'http://example.com/?var=value'
Important use '
add >/dev/null 2>&1
for not send email when this activate
Sorry for my English
your functions should take a callback function, that gets called when it finishes.
function fone(callback){
...do something...
callback.apply(this,[]);
}
function ftwo(callback){
...do something...
callback.apply(this,[]);
}
then usage would be like:
fone(function(){
ftwo(function(){
..ftwo done...
})
});
This problem is usually because your request received the wrong mime type. When developing on your own computer, sometimes you are not receiving the proper mime type from the "server", which is your own computer. I ran into this problem once when developing by opening the locally stored file in the browser (e.g. the url was "c:/project/test.html").
Try using the beforeSend property to add a callback function that overrides the mime type. This will trick the code into dealing with json despite the wrong mime type being sent by the server and received by your calling code. Some example code is below.
The proper mime type is application/json according to this question, but I do know that application/j-son worked when I tried it (now several years ago). You should probably try application/json first.
var jsonMimeType = "application/json;charset=UTF-8";
$.ajax({
type: "GET",
url: myURL,
beforeSend: function(x) {
if(x && x.overrideMimeType) {
x.overrideMimeType(jsonMimeType);
}
},
dataType: "json",
success: function(data){
// do stuff...
}
});
If you're storing the jQuery object of the select element:
var jQuerySelectObject = $("...");
...
jQuerySelectObject.val(jQuerySelectObject.children().eq(0).val());
Go to Help -> Install new softwares-> add -> paste this link in location box http://download.eclipse.org/webtools/repository/luna/ install all new versions..
With Bootstrap 4 Class:
text-nowrap
Ref: https://getbootstrap.com/docs/4.0/utilities/text/#text-wrapping-and-overflow
Every time you call e.nextElement()
you take the next object from the iterator. You have to check e.hasMoreElement()
between each call.
Example:
while(e.hasMoreElements()){
String param = e.nextElement();
System.out.println(param);
}
Restart the IDE. I restarted Android Studio. The error went away.
var request = (HttpWebRequest)WebRequest.Create("sendrequesturl");
var response = (HttpWebResponse)request.GetResponse();
string responseString;
using (var stream = response.GetResponseStream())
{
using (var reader = new StreamReader(stream))
{
responseString = reader.ReadToEnd();
}
}
How about the yahoo's media player Just embed yahoo's library
<script type="text/javascript" src="http://mediaplayer.yahoo.com/js"></script>
And use it like
<a id="beep" href="song.mp3">Play Song</a>
To autostart
$(function() { $("#beep").click(); });
override func viewDidLoad() {
super.viewDidLoad()
tableView.tableFooterView = UIView() // it's just 1 line, awesome!
}
This is same as the previous solution but I have defined the function in df.apply itself:
df['Value'] = df.apply(lambda row: row['a']%row['c'], axis=1)
Your HTML should include quotes for attributes : http://jsfiddle.net/dKWnb/4/
Not required when using a HTML5 doctype - thanks @bazmegakapa
You create the array each time and add a value to it ... its working as expected ?
Moving the array outside of the live() function works fine :
var myarray = []; // more efficient than new Array()
$("#test").live("click",function() {
myarray.push($("#drop").val());
alert(myarray);
});
Also note that in later versions of jQuery v1.7 -> the live() method is deprecated and replaced by the on() method.
Give all the rows you want to hide a class name that you can use for hiding. Use javascript to add/remove this class from the different rows.
<table>
<tr><th>Test Table</th><tr>
<tr class="toHide"><td>123456789</td><tr>
<tr class="toHide"><td>123456789</td><tr>
<tr class="toHide"><td>123456789</td><tr>
</table>
CSS:
.toHide
{
display: none;
}
Stick with the present tense imperative because
Go at References in visual studio and look at which packages are missing. Now right click on Solution in Visual and click on open folder in file explorer. Now open packages folder and delete missing packages folder. Open visual studio and just build the solution. all the missing packages will be restore. Please mark this as answer if I helped.
Use the jQuery hashchange event plugin instead. Regarding your full ajax navigation, try to have SEO friendly ajax. Otherwise your pages shown nothing in browsers with JavaScript limitations.
It is worth mentioning Gaphor. A Python modelling/UML tool.
The Media Source Extensions has been proposed which would allow for Adaptive Bitrate Streaming implementations.
It's nice to have when you need to use the index for some kind of manipulation and having the current element doesn't suffice. Take for instance a binary tree that's stored in an array. If you have a method that asks you to return a list of tuples that contains each nodes direct children then you need the index.
#0 -> 1,2 : 1 -> 3,4 : 2 -> 5,6 : 3 -> 7,8 ...
nodes = [0,1,2,3,4,5,6,7,8,9,10]
children = []
for i in range(len(nodes)):
leftNode = None
rightNode = None
if i*2 + 1 < len(nodes):
leftNode = nodes[i*2 + 1]
if i*2 + 2 < len(nodes):
rightNode = nodes[i*2 + 2]
children.append((leftNode,rightNode))
return children
Of course if the element you're working on is an object, you can just call a get children method. But yea, you only really need the index if you're doing some sort of manipulation.
I wanted to keep python 2.7.5 as default version on Centos 7 but have python 3.6.1 in a virtual environment running alongside other virtual environments in python 2.x
I found the below link the best solution for the newest python version ( python 3.6.1) https://www.digitalocean.com/community/tutorial_series/how-to-install-and-set-up-a-local-programming-environment-for-python-3. It shows the steps for different platforms but the basic steps are
old question, but posting this for fellow googlers:
Spin.js DOES WORK for this use case: http://fgnass.github.com/spin.js/
You could use this format, which is commonly used in PHP:
(lemon) ? document.write("foo gave me a bar") : document.write("if condition is FALSE");
Just revisiting this, I've made it a little bit tidier (though someone who is full bottle on Prototype/JavaScript could suggest improvements?).
var TextAreaResize = Class.create();
TextAreaResize.prototype = {
initialize: function(element, options) {
element = $(element);
this.element = element;
this.options = Object.extend(
{},
options || {});
Event.observe(this.element, 'keyup',
this.onKeyUp.bindAsEventListener(this));
this.onKeyUp();
},
onKeyUp: function() {
// We need this variable because "this" changes in the scope of the
// function below.
var cols = this.element.cols;
var linecount = 0;
$A(this.element.value.split("\n")).each(function(l) {
// We take long lines into account via the cols divide.
linecount += 1 + Math.floor(l.length / cols);
})
this.element.rows = linecount;
}
}
Just it call with:
new TextAreaResize('textarea_id_name_here');
Assuming you're on at least 3.2, there's a built in for this:
int.from_bytes( bytes, byteorder, *, signed=False )
...
The argument bytes must either be a bytes-like object or an iterable producing bytes.
The byteorder argument determines the byte order used to represent the integer. If byteorder is "big", the most significant byte is at the beginning of the byte array. If byteorder is "little", the most significant byte is at the end of the byte array. To request the native byte order of the host system, use sys.byteorder as the byte order value.
The signed argument indicates whether two’s complement is used to represent the integer.
## Examples:
int.from_bytes(b'\x00\x01', "big") # 1
int.from_bytes(b'\x00\x01', "little") # 256
int.from_bytes(b'\x00\x10', byteorder='little') # 4096
int.from_bytes(b'\xfc\x00', byteorder='big', signed=True) #-1024
That is not an nginx
configuration file. It is part of an nginx
configuration file.
The nginx
configuration file (usually called nginx.conf
) will look like:
events {
...
}
http {
...
server {
...
}
}
The server
block is enclosed within an http
block.
Often the configuration is distributed across multiple files, by using the include
directives to pull in additional fragments (for example from the sites-enabled
directory).
Use sudo nginx -t
to test the complete configuration file, which starts at nginx.conf
and pulls in additional fragments using the include
directive. See this document for more.
i think this - including null value = 0
SELECT oi.id,
SUM(nvl(oi.quantity,0) * nvl(p.price,0)) AS total_qty
FROM ORDERITEM oi
JOIN PRODUCT p ON p.id = oi.productid
WHERE oi.orderid = @OrderId
GROUP BY oi.id
Use the logging built-in library module instead of printing.
You create a Logger
object (say logger
), and then after that, whenever you insert a debug print, you just put:
logger.debug("Some string")
You can use logger.setLevel
at the start of the program to set the output level. If you set it to DEBUG, it will print all the debugs. Set it to INFO or higher and immediately all of the debugs will disappear.
You can also use it to log more serious things, at different levels (INFO, WARNING and ERROR).
use async:false
attribute along with url and data. this will help to execute ajax call immediately and u can fetch and use data from server.
function functABC(){
$.ajax({
url: 'myPage.php',
data: {id: id},
async:false
success: function(data) {
return data;
}
});
}
So I assume your permissions table has a foreign key reference to admin_accounts table. If so because of referential integrity you will only be able to add permissions for account ids exsiting in the admin accounts table. Which also means that you wont be able to enter a user_account_id [assuming there are no duplicates!]
doSome("task")must be returning a promise object , and that promise always have a then function .So your code is just like this
promise.then(function(env) {
// logic
});
and you know this is just an ordinary call to member function .
Stephan T. Lavavej (stl) from Microsoft did a talk at Going Native about how to use the new C++11 random functions and why not to use rand()
. In it, he included a slide that basically solves your question. I've copied the code from that slide below.
You can see his full talk here: http://channel9.msdn.com/Events/GoingNative/2013/rand-Considered-Harmful
#include <random>
#include <iostream>
int main() {
std::random_device rd;
std::mt19937 mt(rd());
std::uniform_real_distribution<double> dist(1.0, 10.0);
for (int i=0; i<16; ++i)
std::cout << dist(mt) << "\n";
}
We use random_device
once to seed the random number generator named mt
. random_device()
is slower than mt19937
, but it does not need to be seeded because it requests random data from your operating system (which will source from various locations, like RdRand for example).
Looking at this question / answer, it appears that uniform_real_distribution
returns a number in the range [a, b)
, where you want [a, b]
. To do that, our uniform_real_distibution
should actually look like:
std::uniform_real_distribution<double> dist(1, std::nextafter(10, DBL_MAX));
You can use the function RESHAPE:
B = reshape(A.',1,[]);
Changing Tomcat config wont effect all JVM instances to get theses settings. This is not how it works, the setting will be used only to launch JVMs used by Tomcat, not started in the shell.
Look here for permanently changing the heap size.
I have the feeling that the check should be different
new: h < 768 || w < 1024
Update for RxJS 6 (April 2018)
It is now perfectly fine to import directly from rxjs
. (As can be seen in Angular 6+). Importing from rxjs/operators
is also fine and it is actually no longer possible to import operators globally (one of major reasons for refactoring rxjs 6
and the new approach using pipe
). Thanks to this treeshaking can now be used as well.
Sample code from rxjs repo:
import { Observable, Subject, ReplaySubject, from, of, range } from 'rxjs';
import { map, filter, switchMap } from 'rxjs/operators';
range(1, 200)
.pipe(filter(x => x % 2 === 1), map(x => x + x))
.subscribe(x => console.log(x));
Backwards compatibility for rxjs < 6?
rxjs team released a compatibility package on npm that is pretty much install & play. With this all your rxjs 5.x
code should run without any issues. This is especially useful now when most of the dependencies (i.e. modules for Angular) are not yet updated.
Using either a float or a double value in a C expression will result in a value that is a double anyway, so printf can't tell the difference. Whereas a pointer to a double has to be explicitly signalled to scanf as distinct from a pointer to float, because what the pointer points to is what matters.
You can pipe grep
result to head
in conjunction with stdbuf.
Note, that in order to ensure stopping after Nth match, you need to using stdbuf
to make sure grep
don't buffer its output:
stdbuf -oL grep -rl 'pattern' * | head -n1
stdbuf -oL grep -o -a -m 1 -h -r "Pulsanti Operietur" /path/to/dir | head -n1
stdbuf -oL grep -nH -m 1 -R "django.conf.urls.defaults" * | head -n1
As soon as head
consumes 1 line, it terminated and grep
will receive SIGPIPE
because it still output something to pipe while head
was gone.
This assumed that no file names contain newline.
Just put in fg
and go back to your most recently suspended program.
#map {
float: right;
width: 700px;
height: 500px;
}
#list {
float:left;
width:200px;
background: #eee;
list-style: none;
padding: 0;
}
#similar {
float: left;
clear: left;
width: 200px;
background: #000;
}
There is an alternative to repeating the CONCAT
expression or using subqueries. You can make use of the HAVING
clause, which recognizes column aliases.
SELECT
neededfield, CONCAT(firstname, ' ', lastname) AS firstlast
FROM
users
HAVING firstlast = "Bob Michael Jones"
Here is a working SQL Fiddle.
The R.utils package has a function called doCall which is like do.call, but it does not return an error if unused arguments are passed.
multiply <- function(a, b) a * b
# these will fail
multiply(a = 20, b = 30, c = 10)
# Error in multiply(a = 20, b = 30, c = 10) : unused argument (c = 10)
do.call(multiply, list(a = 20, b = 30, c = 10))
# Error in (function (a, b) : unused argument (c = 10)
# R.utils::doCall will work
R.utils::doCall(multiply, args = list(a = 20, b = 30, c = 10))
# [1] 600
# it also does not require the arguments to be passed as a list
R.utils::doCall(multiply, a = 20, b = 30, c = 10)
# [1] 600
This has been working for me:
If you try uploading the new file as a war file, with tomcat still running, it will attempt to expand it before it is all there. It will fail. Having failed, it will not try again. Thus, uploading a www file, then renaming it, allows the whole war file to be present before tomcat notices it.
Hint, don't forget to check that the war file's owner is tomcat (Use chown)
Probably working Perl solution, if the string is on one line:
my $NesteD ;
$NesteD = qr/ \{( [^{}] | (??{ $NesteD }) )* \} /x ;
if ( $Stringy =~ m/\b( \w+$NesteD )/x ) {
print "Found: $1\n" ;
}
HTH
EDIT: check:
And one more thing by Torsten Marek (who had pointed out correctly, that it's not a regex anymore):
<script src="https://maps.googleapis.com/maps/api/js?key=API_KEY"></script>
<script>
var latitude = '';
var longitude = '';
var geocoder = new google.maps.Geocoder();
geocoder.geocode(
{
componentRestrictions: {
country: 'IN',
postalCode: '744102'
}
}, function (results, status) {
if (status == google.maps.GeocoderStatus.OK) {
latitude = results[0].geometry.location.lat();
longitude = results[0].geometry.location.lng();
console.log(latitude + ", " + longitude);
} else {
alert("Request failed.")
}
});
</script>
https://developers.google.com/maps/documentation/javascript/geocoding#ComponentFiltering
I think this is also a solution of this problem.
Change your document type from 'Encode in UTF-8' To 'Encode in UTF-8 without BOM'
I got resolved my problem by doing same changes.
In the past, I had no error logs in two cases:
php_error_log
file..htaccess
, for example wrong rewrite module settings. In this situation errors are logged to Apache error_log
file.A Numpy array is immutable, meaning you technically cannot delete an item from it. However, you can construct a new array without the values you don't want, like this:
b = np.delete(a, [2,3,6])
In your main layout set your ListView
gravity to right:
android:layout_gravity="right"
Also in your code :
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, R.string.drawer_open,
R.string.drawer_close) {
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item != null && item.getItemId() == android.R.id.home) {
if (mDrawerLayout.isDrawerOpen(Gravity.RIGHT)) {
mDrawerLayout.closeDrawer(Gravity.RIGHT);
}
else {
mDrawerLayout.openDrawer(Gravity.RIGHT);
}
}
return false;
}
};
hope it works :)
Just type mysqldump
or mysqldump --help
in your cmd will show how to use
Here is my cmd result
C:\Program Files\MySQL\MySQL Server 5.0\bin>mysqldump
Usage: mysqldump [OPTIONS] database [tables]
OR mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]
OR mysqldump [OPTIONS] --all-databases [OPTIONS]
For more options, use mysqldump --help
Do it in simple. According to documentation https://developer.android.com/training/data-storage/files
String imageName = "IMG_" + String.valueOf(System.currentTimeMillis()) +".jpg";
picFile = new File(ProfileActivity.this.getCacheDir(),imageName);
and delete it after usage
picFile.delete()
An abstract class can be used instead of an interface (in C# 7.3).
// Like interface
abstract class IIO
{
public virtual async Task<string> DoOperation(string Name)
{
throw new NotImplementedException(); // throwing exception
// return await Task.Run(() => { return ""; }); // or empty do
}
}
// Implementation
class IOImplementation : IIO
{
public override async Task<string> DoOperation(string Name)
{
return await await Task.Run(() =>
{
if(Name == "Spiderman")
return "ok";
return "cancel";
});
}
}
I'm not sure how efficient this is but this works:
$("#search").on("keyup", function() {
var value = $(this).val();
$("table tr").each(function(index) {
if (index != 0) {
$row = $(this);
var id = $row.find("td:first").text();
if (id.indexOf(value) != 0) {
$(this).hide();
}
else {
$(this).show();
}
}
});
});?
I did add some simplistic highlighting logic which you or future users might find handy.
One of the ways to add some basic highlighting is to wrap em
tags around the matched text and using CSS apply a yellow background to the matched text i.e: (em{ background-color: yellow }
), similar to this:
// removes highlighting by replacing each em tag within the specified elements with it's content
function removeHighlighting(highlightedElements){
highlightedElements.each(function(){
var element = $(this);
element.replaceWith(element.html());
})
}
// add highlighting by wrapping the matched text into an em tag, replacing the current elements, html value with it
function addHighlighting(element, textToHighlight){
var text = element.text();
var highlightedText = '<em>' + textToHighlight + '</em>';
var newText = text.replace(textToHighlight, highlightedText);
element.html(newText);
}
$("#search").on("keyup", function() {
var value = $(this).val();
// remove all highlighted text passing all em tags
removeHighlighting($("table tr em"));
$("table tr").each(function(index) {
if (index !== 0) {
$row = $(this);
var $tdElement = $row.find("td:first");
var id = $tdElement.text();
var matchedIndex = id.indexOf(value);
if (matchedIndex != 0) {
$row.hide();
}
else {
//highlight matching text, passing element and matched text
addHighlighting($tdElement, value);
$row.show();
}
}
});
});
Demo - applying some simple highlighting
Persist should be called only on new entities, while merge
is meant to reattach detached entities.
If you're using the assigned generator, using merge
instead of persist
can cause a redundant SQL statement.
Also, calling merge for managed entities is also a mistake since managed entities are automatically managed by Hibernate, and their state is synchronized with the database record by the dirty checking mechanism upon flushing the Persistence Context.
Your variable energies
probably has the wrong shape:
>>> from numpy import array
>>> set([1,2,3]) & set(range(2, 10))
set([2, 3])
>>> set(array([1,2,3])) & set(range(2,10))
set([2, 3])
>>> set(array([[1,2,3],])) & set(range(2,10))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: unhashable type: 'numpy.ndarray'
And that's what happens if you read columnar data using your approach:
>>> data
array([[ 1., 2., 3.],
[ 3., 4., 5.],
[ 5., 6., 7.],
[ 8., 9., 10.]])
>>> hsplit(data,3)[0]
array([[ 1.],
[ 3.],
[ 5.],
[ 8.]])
Probably you can simply use
>>> data[:,0]
array([ 1., 3., 5., 8.])
instead.
(P.S. Your code looks like it's undecided about whether it's data
or elementdata
. I've assumed it's simply a typo.)
Based on this answer
<input type="text" id="sno" placeholder="Only float with dot !"
onkeypress="return (event.charCode >= 48 && event.charCode <= 57) ||
event.charCode == 46 || event.charCode == 0 ">
Meaning :
Char code :
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Backspace
(otherwise need refresh page on Firefox)dot
&&
is AND
, ||
is OR
operator.
if you try float with comma :
<input type="text" id="sno" placeholder="Only float with comma !"
onkeypress="return (event.charCode >= 48 && event.charCode <= 57) ||
event.charCode == 44 || event.charCode == 0 ">
Supported Chromium and Firefox (Linux X64)(other browsers I does not exist.)
$futureDate=date('Y-m-d', strtotime('+1 year'));
$futureDate is one year from now!
$futureDate=date('Y-m-d', strtotime('+1 year', strtotime($startDate)) );
$futureDate is one year from $startDate!
I have used VB Decompiler Lite (http://www.vb-decompiler.org/) in the past, and although it does not give you the original source code, it does give you a lot of information such as method names, some variable strings, etc. With more knowledge (or with the full version) it might be possible to get even more than this.
You may directly right-click on the table name - that also shows the "Import Data.." option.Then you can follow few simple steps & succeed.
Do anyone know how to import a new table with data from excel?
First of all, that is the resolution you would want to use, 1650,1080
.
Now add:
frame.setExtendedState(JFrame.MAXIMIZED_BOTH);
If you have issues with the components on the JFrame, then after you have added all the components using the frame.add(component)
method, add the following statement.
frame.pack();
var last = array.slice(-1)[0];
I find slice at -1 useful for getting the last element (especially of an array of unknown length) and the performance is much better than calculating the length less 1.
Performance of the various methods for selecting last array element
The JLabel background is transparent by default. Set the opacity at true like that:
label.setOpaque(true);
This thread is old, but I just recently stumbled over the defaultProxy issue and maybe it helps others.
I used the config setting as Andrew suggested. When deploying it, my customer got an error saying, there weren't sufficient rights to set the configuration 'defaultProxy'.
Not knowing why I do not have the right to set this configuration and what to do about it, I just removed it and it still worked. So it seems that in VS2013 this issue is fixed.
And while we're at it:
WebRequest.DefaultWebProxy.Credentials = new NetworkCredential("ProxyUsername", "ProxyPassword");
uses the default proxy with your credentials. If you want to force not using a proxy just set the DefaultWebProxy to null (though I don't know if one wants that).
Using 400
status codes for any other purpose than indicating that the request is malformed is just plain wrong.
If the request payload contains a byte-sequence that could not be parsed as application/json
(if the server expects that dataformat), the appropriate status code is 415
:
The server is refusing to service the request because the entity of the request is in a format not supported by the requested resource for the requested method.
If the request payload is syntactically correct but semantically incorrect, the non-standard 422
response code may be used, or the standard 403
status code:
The server understood the request, but is refusing to fulfill it. Authorization will not help and the request SHOULD NOT be repeated.
You can use pandas library and reference the rows and columns like this:
import pandas as pd
input = pd.read_csv("path_to_file");
#for accessing ith row:
input.iloc[i]
#for accessing column named X
input.X
#for accessing ith row and column named X
input.iloc[i].X
There is an open source Javascript library that offers something related : mobile-bookmark-bubble
The Mobile Bookmark Bubble is a JavaScript library that adds a promo bubble to the bottom of your mobile web application, inviting users to bookmark the app to their device's home screen. The library uses HTML5 local storage to track whether the promo has been displayed already, to avoid constantly nagging users.
The current implementation of this library specifically targets Mobile Safari, the web browser used on iPhone and iPad devices.
For my fellow Swift users, here is the code you will need:
let imageName = "un-child-rights.jpg"
let image = UIImage(named: imageName)
cell.imageView!.image = image
Here is what i did and it works.
I just used a stringified object.
$scope.thread = [
{
mostRecent:{text:'hello world',timeStamp:12345678 }
allMessages:[]
}
{MoreThreads...}
{etc....}
]
<div ng-repeat="message in thread | orderBy : '-mostRecent.timeStamp'" >
if i wanted to sort by text i would do
orderBy : 'mostRecent.text'
label = new JLabel("A label");
label.setFont(new Font("Serif", Font.PLAIN, 14));
taken from How to Use HTML in Swing Components
A simple solution for a very common problem
// DECLARATION
HttpContext context = HttpContext.Current;
DataTable dt_ShoppingBasket = context.Session["Shopping_Basket"] as DataTable;
// TRY TO ADD rows with the info into the DataTable
try
{
// Add new Serial Code into DataTable dt_ShoppingBasket
dt_ShoppingBasket.Rows.Add(new_SerialCode.ToString());
// Assigns new DataTable to Session["Shopping_Basket"]
context.Session["Shopping_Basket"] = dt_ShoppingBasket;
}
catch (Exception)
{
// IF FAIL (EMPTY OR DOESN'T EXIST) -
// Create new Instance,
DataTable dt_ShoppingBasket= new DataTable();
// Add column and Row with the info
dt_ShoppingBasket.Columns.Add("Serial");
dt_ShoppingBasket.Rows.Add(new_SerialCode.ToString());
// Assigns new DataTable to Session["Shopping_Basket"]
context.Session["Shopping_Basket"] = dt_PanierCommande;
}
// PRINT TESTS
DataTable dt_To_Print = context.Session["Shopping_Basket"] as DataTable;
foreach (DataRow row in dt_To_Print.Rows)
{
foreach (var item in row.ItemArray)
{
Debug.WriteLine("DATATABLE IN SESSION: " + item);
}
}
List is an Interface, you cannot instantiate an Interface, because interface is a convention, what methods should have your classes. In order to instantiate, you need some realizations(implementations) of that interface. Try the below code with very popular implementations of List interface:
List<String> supplierNames = new ArrayList<String>();
or
List<String> supplierNames = new LinkedList<String>();
As a couple of answers have pointed out, I believe there is some some misunderstanding of multi tier vs MVC architecture.
Multi tier architecture involves breaking your application into tiers/layers (e.g. presentation, business logic, data access)
MVC is an architectural style for the presentation layer of an application. For non trivial applications, business logic/business rules/data access should not be placed directly into Models, Views, or Controllers. To do so would be placing business logic in your presentation layer and thus reducing reuse and maintainability of your code.
The model is a very reasonable choice choice to place business logic, but a better/more maintainable approach is to separate your presentation layer from your business logic layer and create a business logic layer and simply call the business logic layer from your models when needed. The business logic layer will in turn call into the data access layer.
I would like to point out that it is not uncommon to find code that mixes business logic and data access in one of the MVC components, especially if the application was not architected using multiple tiers. However, in most enterprise applications, you will commonly find multi tier architectures with an MVC architecture in place within the presentation layer.
The web.config transforms that are part of Visual Studio 2010 use XSLT in order to "transform" the current web.config file into its .Debug or .Release version.
In your .Debug/.Release files, you need to add the following parameter in your connection string fields:
xdt:Transform="SetAttributes" xdt:Locator="Match(name)"
This will cause each connection string line to find the matching name and update the attributes accordingly.
Note: You won't have to worry about updating your providerName parameter in the transform files, since they don't change.
Here's an example from one of my apps. Here's the web.config file section:
<connectionStrings>
<add name="EAF" connectionString="[Test Connection String]" />
</connectionString>
And here's the web.config.release section doing the proper transform:
<connectionStrings>
<add name="EAF" connectionString="[Prod Connection String]"
xdt:Transform="SetAttributes"
xdt:Locator="Match(name)" />
</connectionStrings>
One added note: Transforms only occur when you publish the site, not when you simply run it with F5 or CTRL+F5. If you need to run an update against a given config locally, you will have to manually change your Web.config file for this.
For more details you can see the MSDN documentation
https://msdn.microsoft.com/en-us/library/dd465326(VS.100).aspx
A slightly simpler syntax (in Robomongo at least) worked for me:
db.database.save({ Year : NumberInt(2015) });
Maybe not a direct answer to the question, but a recent addition to the official documentation describes how jQuery can be used to disable transitions entirely just by:
$.support.transition = false
Setting the .collapsing
CSS transitions to none as mentioned in the accepted answer removed the animation. But this — in Firefox and Chromium for me — creates an unwanted visual issue on collapse of the navbar.
For instance, visit the Bootstrap navbar example and add the CSS from the accepted answer:
.collapsing {
-webkit-transition: none;
transition: none;
}
What I currently see is when the navbar collapses, the bottom border of the navbar momentarily becomes two pixels instead of one, then disconcertingly jumps back to one. Using jQuery, this artifact doesn't appear.
This means that a TCP RST was received and the connection is now closed. This occurs when a packet is sent from your end of the connection but the other end does not recognize the connection; it will send back a packet with the RST bit set in order to forcibly close the connection.
This can happen if the other side crashes and then comes back up or if it calls close()
on the socket while there is data from you in transit, and is an indication to you that some of the data that you previously sent may not have been received.
It is up to you whether that is an error; if the information you were sending was only for the benefit of the remote client then it may not matter that any final data may have been lost. However you should close the socket and free up any other resources associated with the connection.
You could use urllib as @roippi said:
import urllib2
data = '{"nw_src": "10.0.0.1/32", "nw_dst": "10.0.0.2/32", "nw_proto": "ICMP", "actions": "ALLOW", "priority": "10"}'
url = 'http://localhost:8080/firewall/rules/0000000000000001'
req = urllib2.Request(url, data, {'Content-Type': 'application/json'})
f = urllib2.urlopen(req)
for x in f:
print(x)
f.close()
Linux
To install different version of ruby, check the latest version of package using apt
as below:
$ apt-cache madison ruby
ruby | 1:1.9.3 | http://ftp.uk.debian.org/debian/ wheezy/main amd64 Packages
ruby | 4.5 | http://ftp.uk.debian.org/debian/ squeeze/main amd64 Packages
Then install it:
$ sudo apt-get install ruby=1:1.9.3
To check what's the current version, run:
$ gem --version # Check for the current user.
$ sudo gem --version # Check globally.
If the version is still old, you may try to switch the version to new by using ruby version manager (rvm
) by:
rvm 1.9.3
Note: You may prefix it by sudo
if rvm
was installed globally. Or run /usr/local/rvm/scripts/rvm
if your command rvm
is not in your global PATH
. If rvm installation process failed, see the troubleshooting section.
Troubleshooting:
If you still have the old version, you may try to install rvm (ruby version manager) via:
sudo apt-get install curl # Install curl first
curl -sSL https://get.rvm.io | bash -s stable --ruby # Install only for the user.
#or:# curl -sSL https://get.rvm.io | sudo bash -s stable --ruby # Install globally.
then if installed locally (only for current user), load rvm via:
source /usr/local/rvm/scripts/rvm; rvm 1.9.3
if globally (for all users), then:
sudo bash -c "source /usr/local/rvm/scripts/rvm; rvm 1.9.3"
if you still having problem with the new ruby version, try to install it by rvm via:
source /usr/local/rvm/scripts/rvm && rvm install ruby-1.9.3 # Locally.
sudo bash -c "source /usr/local/rvm/scripts/rvm && rvm install ruby-1.9.3" # Globally.
if you'd like to install some gems globally and you have rvm already installed, you may try:
rvmsudo gem install [gemname]
instead of:
gem install [gemname] # or:
sudo gem install [gemname]
Note: It's prefered to NOT use sudo to work with RVM gems. When you do sudo you are running commands as root, another user in another shell and hence all of the setup that RVM has done for you is ignored while the command runs under sudo (such things as GEM_HOME, etc...). So to reiterate, as soon as you 'sudo' you are running as the root system user which will clear out your environment as well as any files it creates are not able to be modified by your user and will result in strange things happening.
When sending data to a web server, the data has to be a string (here). You can convert a JavaScript object into a string with JSON.stringify()
.
Here is a working example:
var fs = require('fs');
var originalNote = {
title: 'Meeting',
description: 'Meeting John Doe at 10:30 am'
};
var originalNoteString = JSON.stringify(originalNote);
fs.writeFileSync('notes.json', originalNoteString);
var noteString = fs.readFileSync('notes.json');
var note = JSON.parse(noteString);
console.log(`TITLE: ${note.title} DESCRIPTION: ${note.description}`);
Hope it could help.
Prompt% cat t1
This is "Unix"
This is "Unix sed"
Prompt% sed -i 's/\"Unix\"/\"Linux\"/g' t1
Prompt% sed -i 's/\"Unix sed\"/\"Linux SED\"/g' t1
Prompt% cat t1
This is "Linux"
This is "Linux SED"
Prompt%
Oracle Workshop for Weblogic is supposed to have a pretty nice jsp editor but I've never used it. You needn't be using Weblogic to use it.
You can set specific cache-headers for a whole folder in either your root web.config
:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<!-- Note the use of the 'location' tag to specify which
folder this applies to-->
<location path="images">
<system.webServer>
<staticContent>
<clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="00:00:15" />
</staticContent>
</system.webServer>
</location>
</configuration>
Or you can specify these in a web.config
file in the content folder:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<staticContent>
<clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="00:00:15" />
</staticContent>
</system.webServer>
</configuration>
I'm not aware of a built in mechanism to target specific file types.
I'm not sure what format you're looking for in your difference but here's how to do it using DateTime
$datetime1 = new DateTime();
$datetime2 = new DateTime('2011-01-03 17:13:00');
$interval = $datetime1->diff($datetime2);
$elapsed = $interval->format('%y years %m months %a days %h hours %i minutes %s seconds');
echo $elapsed;
I attempted to use the toggleClass method to hide an item on my site (using visibility:hidden as opposed to display:none) with a slight animation, but for some reason the animation would not work (possibly due to an older version of jQuery UI).
The class was removed and added correctly, but the duration I added did not seem to make any difference - the item was simply added or removed with no effect.
So to resolve this I used a second class in my toggle method and applied a CSS transition instead:
The CSS:
.hidden{
visibility:hidden;
opacity: 0;
-moz-transition: opacity 1s, visibility 1.3s;
-webkit-transition: opacity 1s, visibility 1.3s;
-o-transition: opacity 1s, visibility 1.3s;
transition: opacity 1s, visibility 1.3s;
}
.shown{
visibility:visible;
opacity: 1;
-moz-transition: opacity 1s, visibility 1.3s;
-webkit-transition: opacity 1s, visibility 1.3s;
-o-transition: opacity 1s, visibility 1.3s;
transition: opacity 1s, visibility 1.3s;
}
The JS:
function showOrHide() {
$('#element').toggleClass("hidden shown");
}
Thanks @tomas.satinsky for the awesome (and super simple) answer on this post.
Firstly freq_series.plot
returns an axis not a figure so to make my answer a little more clear I've changed your given code to refer to it as ax
rather than fig
to be more consistent with other code examples.
You can get the list of the bars produced in the plot from the ax.patches
member. Then you can use the technique demonstrated in this matplotlib
gallery example to add the labels using the ax.text
method.
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
# Bring some raw data.
frequencies = [6, 16, 75, 160, 244, 260, 145, 73, 16, 4, 1]
# In my original code I create a series and run on that,
# so for consistency I create a series from the list.
freq_series = pd.Series.from_array(frequencies)
x_labels = [108300.0, 110540.0, 112780.0, 115020.0, 117260.0, 119500.0,
121740.0, 123980.0, 126220.0, 128460.0, 130700.0]
# Plot the figure.
plt.figure(figsize=(12, 8))
ax = freq_series.plot(kind='bar')
ax.set_title('Amount Frequency')
ax.set_xlabel('Amount ($)')
ax.set_ylabel('Frequency')
ax.set_xticklabels(x_labels)
rects = ax.patches
# Make some labels.
labels = ["label%d" % i for i in xrange(len(rects))]
for rect, label in zip(rects, labels):
height = rect.get_height()
ax.text(rect.get_x() + rect.get_width() / 2, height + 5, label,
ha='center', va='bottom')
This produces a labeled plot that looks like:
If using TextBox2.Text
as the source for a numeric value, it must first be checked to see if a value exists, and then converted to integer.
If the text box is blank when Convert.ToInt32
is called, you will receive the System.FormatException
. Suggest trying:
protected void SetImageWidth()
{
try{
Image1.Width = Convert.ToInt32(TextBox1.Text);
}
catch(System.FormatException)
{
Image1.Width = 100; // or other default value as appropriate in context.
}
}
LinkedHashMap
is precisely what you're looking for.
It is exactly like HashMap
, except that when you iterate over it, it presents the items in the insertion order.
For type
public class KeyValue
{
public string KeyCol { get; set; }
public string ValueCol { get; set; }
}
collection
var wordList = new Model.DTO.KeyValue[] {
new Model.DTO.KeyValue {KeyCol="key1", ValueCol="value1" },
new Model.DTO.KeyValue {KeyCol="key2", ValueCol="value1" },
new Model.DTO.KeyValue {KeyCol="key3", ValueCol="value2" },
new Model.DTO.KeyValue {KeyCol="key4", ValueCol="value2" },
new Model.DTO.KeyValue {KeyCol="key5", ValueCol="value3" },
new Model.DTO.KeyValue {KeyCol="key6", ValueCol="value4" }
};
our linq query look like below
var query =from m in wordList group m.KeyCol by m.ValueCol into g
select new { Name = g.Key, KeyCols = g.ToList() };
or for array instead of list like below
var query =from m in wordList group m.KeyCol by m.ValueCol into g
select new { Name = g.Key, KeyCols = g.ToList().ToArray<string>() };
VARCHAR means that it's a variable-length character, so it's only going to take as much space as is necessary. But if you knew something about the underlying structure, it may make sense to restrict VARCHAR to some maximum amount.
For instance, if you were storing comments from the user, you may limit the comment field to only 4000 characters; if so, it doesn't really make any sense to make the sql table have a field that's larger than VARCHAR(4000).
Yes, assuming the account has appropriate permissions you can use:
SELECT <...>
FROM A.table1 t1 JOIN B.table2 t2 ON t2.column2 = t1.column1;
You just need to prefix the table reference with the name of the database it resides in.
if you are using windows os and believe that skype is not the suspect, then you might want to check the task manager and check the "Show processes from all users" and make sure that there is NO entry for httpd.exe. Otherwise, end its process. That solves my problem.
rename_column :table, :old_column, :new_column
You'll probably want to create a separate migration to do this. (Rename FixColumnName
as you will.):
script/generate migration FixColumnName
# creates db/migrate/xxxxxxxxxx_fix_column_name.rb
Then edit the migration to do your will:
# db/migrate/xxxxxxxxxx_fix_column_name.rb
class FixColumnName < ActiveRecord::Migration
def self.up
rename_column :table_name, :old_column, :new_column
end
def self.down
# rename back if you need or do something else or do nothing
end
end
For Rails 3.1 use:
While, the up
and down
methods still apply, Rails 3.1 receives a change
method that "knows how to migrate your database and reverse it when the migration is rolled back without the need to write a separate down method".
See "Active Record Migrations" for more information.
rails g migration FixColumnName
class FixColumnName < ActiveRecord::Migration
def change
rename_column :table_name, :old_column, :new_column
end
end
If you happen to have a whole bunch of columns to rename, or something that would have required repeating the table name over and over again:
rename_column :table_name, :old_column1, :new_column1
rename_column :table_name, :old_column2, :new_column2
...
You could use change_table
to keep things a little neater:
class FixColumnNames < ActiveRecord::Migration
def change
change_table :table_name do |t|
t.rename :old_column1, :new_column1
t.rename :old_column2, :new_column2
...
end
end
end
Then just db:migrate
as usual or however you go about your business.
For Rails 4:
While creating a Migration
for renaming a column, Rails 4 generates a change
method instead of up
and down
as mentioned in the above section. The generated change
method is:
$ > rails g migration ChangeColumnName
which will create a migration file similar to:
class ChangeColumnName < ActiveRecord::Migration
def change
rename_column :table_name, :old_column, :new_column
end
end
Note: Adding a new answer as the publish/unpublish option is moved to different location.
As mentioned in other answers you cannot delete the app. With updated Google Play Console (Beta), the Unpublish option is moved to different location:
Setup -> Advanced Settings -> App Availability
Enable Published / Unpublished accordingly!
Between the deprecation of mutation events and the emergence of MutationObserver
, an efficent way to be notified when a specific element was added to the DOM was to exploit CSS3 animation events.
To quote the blog post:
Setup a CSS keyframe sequence that targets (via your choice of CSS selector) whatever DOM elements you want to receive a DOM node insertion event for.
I used a relatively benign and little used css property, clipI used outline-color in an attempt to avoid messing with intended page styles – the code once targeted the clip property, but it is no longer animatable in IE as of version 11. That said, any property that can be animated will work, choose whichever one you like.Next I added a document-wide animationstart listener that I use as a delegate to process the node insertions. The animation event has a property called animationName on it that tells you which keyframe sequence kicked off the animation. Just make sure the animationName property is the same as the keyframe sequence name you added for node insertions and you’re good to go.
For Ubuntu 16.04
, I have used this command for PHP7.2
and it worked for me.
sudo apt-get install php7.2-zip
Edit: Hash versus Array
As cincodenada correctly pointed out in the comment, ysth gave a better answer: I should have answered your question with another question: "Do you really want to use a Perl array? A hash may be more appropriate."
An array allocates memory for all possible indices up to the largest used so-far. In your example, you allocate 24 cells (but use only 3). By contrast, a hash only allocates space for those fields that are actually used.
Array solution: scalar grep
Here are two possible solutions (see below for explanation):
print scalar(grep {defined $_} @a), "\n"; # prints 3
print scalar(grep $_, @a), "\n"; # prints 3
Explanation: After adding $a[23]
, your array really contains 24 elements --- but most of them are undefined (which also evaluates as false). You can count the number of defined elements (as done in the first solution) or the number of true elements (second solution).
What is the difference? If you set $a[10]=0
, then the first solution will count it, but the second solution won't (because 0 is false but defined). If you set $a[3]=undef
, none of the solutions will count it.
Hash solution (by yst)
As suggested by another solution, you can work with a hash and avoid all the problems:
$a{0} = 1;
$a{5} = 2;
$a{23} = 3;
print scalar(keys %a), "\n"; # prints 3
This solution counts zeros and undef values.
If you have a different flavour of the app, try uninstalling that first. This helped me when I had the same issue.
I made the mistake of opening a BufferedReader like:
File f = new File("somefile.txt");
BufferedReader br = new BufferedReader(new FileReader(f));
...and of course I could not execute the f.delete()
because I wrapped the
FileReader instead of instantiating its own variable where I could explicitly close it. Duh...
Once I coded:
File f = new File("somefile.txt");
FileReader fread = new FileReader(f);
BufferedReader br = new BufferedReader(fread);
I could issue a br.close(); br=null; fread.close(); fread=null;
and the f.delete()
worked fine.
There are no performance implications since the compiler will translate your lambda expression into an equivalent delegate. Lambda expressions are nothing more than a language feature that the compiler translates into the exact same code that you are used to working with.
The compiler will convert the code you have to something like this:
public partial class MyPage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//snip
MyButton.Click += new EventHandler(delegate (Object o, EventArgs a)
{
//snip
});
}
}
OK, so first of all the http://angular-ui.github.io/bootstrap/ has a <modal>
directive and the $dialog
service and both of those can be used to open modal windows.
The difference is that with the <modal>
directive content of a modal is embedded in a hosting template (one that triggers modal window opening). The $dialog
service is far more flexible and allow you to load modal's content from a separate file as well as trigger modal windows from any place in AngularJS code (this being a controller, a service or another directive).
Not sure what you mean exactly by "using JavaScript code" but assuming that you mean any place in AngularJS code the $dialog
service is probably a way to go.
It is very easy to use and in its simplest form you could just write:
$dialog.dialog({}).open('modalContent.html');
To illustrate that it can be really triggered by any JavaScript code here is a version that triggers modal with a timer, 3 seconds after a controller was instantiated:
function DialogDemoCtrl($scope, $timeout, $dialog){
$timeout(function(){
$dialog.dialog({}).open('modalContent.html');
}, 3000);
}
This can be seen in action in this plunk: http://plnkr.co/edit/u9HHaRlHnko492WDtmRU?p=preview
Finally, here is the full reference documentation to the $dialog
service described here:
https://github.com/angular-ui/bootstrap/blob/master/src/dialog/README.md
As seen in the revision column of the Android SDK Manager, the latest published version of the Support Library is 22.2.1. You'll have to wait until 23.0.0 is published.
Edit: API 23 is already published. So u can use 23.0.0
Use this code
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<corners
android:bottomLeftRadius="5dp"
android:bottomRightRadius="5dp"
android:radius="0.1dp"
android:topLeftRadius="5dp"
android:topRightRadius="5dp" />
<solid android:color="#Efffff" />
<stroke
android:width="2dp"
android:color="#25aaff" />
</shape>
OK, here's what we do: open the file, read it line by line, and split it by tabs. Then we grab the second integer and loop through the rest to find the path.
StreamReader reader = File.OpenText("filename.txt");
string line;
while ((line = reader.ReadLine()) != null)
{
string[] items = line.Split('\t');
int myInteger = int.Parse(items[1]); // Here's your integer.
// Now let's find the path.
string path = null;
foreach (string item in items)
{
if (item.StartsWith("item\\") && item.EndsWith(".ddj"))
path = item;
}
// At this point, `myInteger` and `path` contain the values we want
// for the current line. We can then store those values or print them,
// or anything else we like.
}
Yes, you are correct. If you are using a jQuery plugin, do not put the code in the controller. Instead create a directive and put the code that you would normally have inside the link
function of the directive.
There are a couple of points in the documentation that you could take a look at. You can find them here:
Common Pitfalls
Ensure that when you are referencing the script in your view, you refer it last - after the angularjs library, controllers, services and filters are referenced.
EDIT: Rather than using $(element)
, you can make use of angular.element(element)
when using AngularJS with jQuery
To store actual Unicode codepoints, you have to first decode the String's UTF-16 codeunits to UTF-32 codeunits (which are currently the same as the Unicode codepoints). Use System.Text.Encoding.UTF32.GetBytes()
for that, and then write the resulting bytes to the StringBuilder
as needed,i.e.
static void Main(string[] args)
{
String originalString = "This string contains the unicode character Pi(p)";
Byte[] bytes = Encoding.UTF32.GetBytes(originalString);
StringBuilder asAscii = new StringBuilder();
for (int idx = 0; idx < bytes.Length; idx += 4)
{
uint codepoint = BitConverter.ToUInt32(bytes, idx);
if (codepoint <= 127)
asAscii.Append(Convert.ToChar(codepoint));
else
asAscii.AppendFormat("\\u{0:x4}", codepoint);
}
Console.WriteLine("Final string: {0}", asAscii);
Console.ReadKey();
}
This my another solution using priority constraint. The idea is set the width to 0.
I used the javascript date funtion toLocaleDateString to get
var Today = new Date();
var r = Today.toLocaleDateString();
The result of r will be
11/29/2016
More info at: http://www.w3schools.com/jsref/jsref_tolocaledatestring.asp