If fptr
is NULL
, then you don't have an open file. Therefore, you can't freopen
it, you should just fopen
it.
FILE *fptr;
fptr = fopen("scores.dat", "rb+");
if(fptr == NULL) //if file does not exist, create it
{
fptr = fopen("scores.dat", "wb");
}
note: Since the behavior of your program varies depending on whether the file is opened in read or write modes, you most probably also need to keep a variable indicating which is the case.
int main()
{
FILE *fptr;
char there_was_error = 0;
char opened_in_read = 1;
fptr = fopen("scores.dat", "rb+");
if(fptr == NULL) //if file does not exist, create it
{
opened_in_read = 0;
fptr = fopen("scores.dat", "wb");
if (fptr == NULL)
there_was_error = 1;
}
if (there_was_error)
{
printf("Disc full or no permission\n");
return EXIT_FAILURE;
}
if (opened_in_read)
printf("The file is opened in read mode."
" Let's read some cached data\n");
else
printf("The file is opened in write mode."
" Let's do some processing and cache the results\n");
return EXIT_SUCCESS;
}
Any tag with runat=server is added as server control in Page and any html content between is handled as LiteralControls which are also added to Page controls collection.
Use the method provided in the Date object as follows:
var ts_hms = new Date();
console.log(
ts_hms.getFullYear() + '-' +
("0" + (ts_hms.getMonth() + 1)).slice(-2) + '-' +
("0" + (ts_hms.getDate())).slice(-2) + ' ' +
("0" + ts_hms.getHours()).slice(-2) + ':' +
("0" + ts_hms.getMinutes()).slice(-2) + ':' +
("0" + ts_hms.getSeconds()).slice(-2));
It looks really dirty, but it should work fine with JavaScript core methods
You can use \blacksquare
¦:
When creating TeX, Knuth provided the symbol ¦ (solid black square), also called by mathematicians tombstone or Halmos symbol (after Paul Halmos, who pioneered its use as an equivalent of Q.E.D.). The tombstone is sometimes open: ? (hollow black square).
None of the solutions helped me here and I did this to solve my situation.
<a onclick="return clickEvent(event);" href="/contact-us">
And the function clickEvent()
,
function clickEvent(event) {
event.preventDefault();
// do your thing here
// remove the onclick event trigger and continue with the event
event.target.parentElement.onclick = null;
event.target.parentElement.click();
}
If you had caught the error, you would have seen this:
jsonString, err := json.Marshal(datas)
fmt.Println(err)
// [] json: unsupported type: map[int]main.Foo
The thing is you cannot use integers as keys in JSON; it is forbidden. Instead, you can convert these values to strings beforehand, for instance using strconv.Itoa
.
See this post for more details: https://stackoverflow.com/a/24284721/2679935
The correct syntax is:
data: {status: status, name: name},
As specified here: http://api.jquery.com/jQuery.ajax/
So if that doesn't work, I would alert those variables to make sure they have values.
That’s right, Executors.newCachedThreadPool()
isn't a great choice for server code that's servicing multiple clients and concurrent requests.
Why? There are basically two (related) problems with it:
It's unbounded, which means that you're opening the door for anyone to cripple your JVM by simply injecting more work into the service (DoS attack). Threads consume a non-negligible amount of memory and also increase memory consumption based on their work-in-progress, so it's quite easy to topple a server this way (unless you have other circuit-breakers in place).
The unbounded problem is exacerbated by the fact that the Executor is fronted by a SynchronousQueue
which means there's a direct handoff between the task-giver and the thread pool. Each new task will create a new thread if all existing threads are busy. This is generally a bad strategy for server code. When the CPU gets saturated, existing tasks take longer to finish. Yet more tasks are being submitted and more threads created, so tasks take longer and longer to complete. When the CPU is saturated, more threads is definitely not what the server needs.
Here are my recommendations:
Use a fixed-size thread pool Executors.newFixedThreadPool or a ThreadPoolExecutor. with a set maximum number of threads;
Use the following:
spinnerObject.setSelection(INDEX_OF_CATEGORY2)
.
The C standard specifies that unsigned numbers will be stored in binary. (With optional padding bits). Signed numbers can be stored in one of three formats: Magnitude and sign; two's complement or one's complement. Interestingly that rules out certain other representations like Excess-n or Base -2.
However on most machines and compilers store signed numbers in 2's complement.
int
is normally 16 or 32 bits. The standard says that int
should be whatever is most efficient for the underlying processor, as long as it is >= short
and <= long
then it is allowed by the standard.
On some machines and OSs history has causes int
not to be the best size for the current iteration of hardware however.
As of Xcode 11.6 and Swift 5.3, facility to simulate custom location has been moved from "Debug" to "Features" in iOS Simulator menu.
I just encountered the same issue after adding the bin folder to .gitignore, not sure if that caused the issue.
I solved it by going to Project/Properties/Build Path and I removed the scr folder and added it again.
You need to define a copy constructor, assignment, operator.
class Test {
Test(const Test &that); //Copy constructor
Test& operator= (const Test &rhs); //assignment operator
}
Your copy that is pushed on the queue is pointing to the same memory your original is. When the first is destructed, it deletes the memory. The second destructs and tries to delete the same memory.
Another option is to use one of my personal favorite CSS tools: box-shadow
.
A box shadow is really a drop-shadow on the node. It looks like this:
-moz-box-shadow: 1px 2px 3px rgba(0,0,0,.5);
-webkit-box-shadow: 1px 2px 3px rgba(0,0,0,.5);
box-shadow: 1px 2px 3px rgba(0,0,0,.5);
The arguments are:
1px: Horizontal offset of the effect. Positive numbers shift it right, negative left.
2px: Vertical offset of the effect. Positive numbers shift it down, negative up.
3px: The blur effect. 0 means no blur.
color: The color of the shadow.
So, you could leave your current design, and add a box-shadow like:
box-shadow: 0px -2px 2px rgba(34,34,34,0.6);
This should give you a 'blurry' top-edge.
This website will help with more information: http://css-tricks.com/snippets/css/css-box-shadow/
import java.time.LocalTime;
private String ConvertSecondToHHMMSSString(int nSecondTime) {
return LocalTime.MIN.plusSeconds(nSecondTime).toString();
}
From the session_destroy() page in the PHP manual:
<?php
// Initialize the session.
// If you are using session_name("something"), don't forget it now!
session_start();
// Unset all of the session variables.
$_SESSION = array();
// If it's desired to kill the session, also delete the session cookie.
// Note: This will destroy the session, and not just the session data!
if (ini_get("session.use_cookies")) {
$params = session_get_cookie_params();
setcookie(session_name(), '', time() - 42000,
$params["path"], $params["domain"],
$params["secure"], $params["httponly"]
);
}
// Finally, destroy the session.
session_destroy();
?>
Alternatively you can use Minio Client aka mc. Its Open Source and compatible with AWS S3. It is available for Linux, Windows, Mac, FreeBSD.
All you have do do is to run mc ls command for listing the contents.
$ mc ls s3/kline/ [2016-04-30 13:20:47 IST] 1.1MiB 1.jpg [2016-04-30 16:03:55 IST] 7.5KiB docker.png [2016-04-30 15:16:17 IST] 50KiB pi.png [2016-05-10 14:34:39 IST] 365KiB upton.pdf
Note:
Installing Minio Client Linux Download mc for:
$ chmod 755 mc $ ./mc --help
Setting up AWS credentials with Minio Client
$ mc config host add mys3 https://s3.amazonaws.com BKIKJAA5BMMU2RHO6IBB V7f1CwQqAcwo80UEIJEjc5gVQUSSx5ohQ9GSrr12
Note: Please replace mys3 with alias you would like for this account and ,BKIKJAA5BMMU2RHO6IBB, V7f1CwQqAcwo80UEIJEjc5gVQUSSx5ohQ9GSrr12 with your AWS ACCESS-KEY and SECRET-KEY
Hope it helps.
Disclaimer: I work for Minio
On Dashboard, Go to User Accounts, Select user, Click Change Password, Fill the New Password, Go.
I know nothing about Jenkins, but it looks like you are trying to access environment variables using some form of unix syntax - that won't work.
If the name of the variable is WORKSPACE, then the value is expanded in Windows batch using
%WORKSPACE%
. That form of expansion is performed at parse time. For example, this will print to screen the value of WORKSPACE
echo %WORKSPACE%
If you need the value at execution time, then you need to use delayed expansion !WORKSPACE!
. Delayed expansion is not normally enabled by default. Use SETLOCAL EnableDelayedExpansion
to enable it. Delayed expansion is often needed because blocks of code within parentheses and/or multiple commands concatenated by &
, &&
, or ||
are parsed all at once, so a value assigned within the block cannot be read later within the same block unless you use delayed expansion.
setlocal enableDelayedExpansion
set WORKSPACE=BEFORE
(
set WORKSPACE=AFTER
echo Normal Expansion = %WORKSPACE%
echo Delayed Expansion = !WORKSPACE!
)
The output of the above is
Normal Expansion = BEFORE
Delayed Expansion = AFTER
Use HELP SET
or SET /?
from the command line to get more information about Windows environment variables and the various expansion options. For example, it explains how to do search/replace and substring operations.
You can give it a try.. Added a working example. When focus is on input, turning on caps lock makes the led go red otherwise green. (Haven't tested on mac/linux)
NOTE: Both versions are working for me. Thanks for constructive inputs in the comments.
OLD VERSION: https://jsbin.com/mahenes/edit?js,output
Also, here is a modified version (can someone test on mac and confirm)
NEW VERSION: https://jsbin.com/xiconuv/edit?js,output
NEW VERSION:
function isCapslock(e) {
const IS_MAC = /Mac/.test(navigator.platform);
const charCode = e.charCode;
const shiftKey = e.shiftKey;
if (charCode >= 97 && charCode <= 122) {
capsLock = shiftKey;
} else if (charCode >= 65 && charCode <= 90
&& !(shiftKey && IS_MAC)) {
capsLock = !shiftKey;
}
return capsLock;
}
OLD VERSION:
function isCapslock(e) {
e = (e) ? e : window.event;
var charCode = false;
if (e.which) {
charCode = e.which;
} else if (e.keyCode) {
charCode = e.keyCode;
}
var shifton = false;
if (e.shiftKey) {
shifton = e.shiftKey;
} else if (e.modifiers) {
shifton = !!(e.modifiers & 4);
}
if (charCode >= 97 && charCode <= 122 && shifton) {
return true;
}
if (charCode >= 65 && charCode <= 90 && !shifton) {
return true;
}
return false;
}
For international characters, additional check can be added for the following keys as needed. You have to get the keycode range for characters you are interested in, may be by using a keymapping array which will hold all the valid use case keys you are addressing...
uppercase A-Z or 'Ä', 'Ö', 'Ü', lowercase a-Z or 0-9 or 'ä', 'ö', 'ü'
The above keys are just sample representation.
You can use setattr
name = 'varname'
value = 'something'
setattr(self, name, value) #equivalent to: self.varname= 'something'
print (self.varname)
#will print 'something'
But, since you should inform an object to receive the new variable, this only works inside classes or modules.
There is contextlib.redirect_stdout() function in Python 3.4:
import io
from contextlib import redirect_stdout
with io.StringIO() as buf, redirect_stdout(buf):
print('redirected')
output = buf.getvalue()
Here's code example that shows how to implement it on older Python versions.
Edit: In case anyone else is having this problem, I believe the solution for OP was that he had not imported popper.js
.
Check that jQuery and all the relevant Bootstrap components are there. Also check the console and make sure there are no errors.
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNavDropdown">
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Features</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Pricing</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="http://example.com" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown link
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
</ul>
</div>
</nav>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js" integrity="sha384-b/U6ypiBEHpOf/4+1nzFpr53nxSS+GLCkfwBdFNTxtclqqenISfwAzpKaMNFNmj4" crossorigin="anonymous"></script>
<-- Always remember to call the above files first before calling the bootstrap.min.js file -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js" integrity="sha384-h0AbiXch4ZDo7tp9hKZ4TsHbi047NrKGLO3SEJAg45jXxnGIfYzk4Si90RDIqNm1" crossorigin="anonymous"></script>
</body>
</html>
_x000D_
Besides Carl's answer, the "standard" C++ way is not to use a C int
array, but rather something like a C++ STL std::vector<int> list
which you can query for list.size()
.
Before I answer your question, I'd like to mention that you should probably look into using some sort of ORM solution (e.g., Hibernate), wrapped behind a data access tier. What you are doing appear to be very anti-OO. I admittedly do not know what the rest of your code looks like, but generally, if you start seeing yourself using a lot of Utility classes, you're probably taking too structural of an approach.
To answer your question, as others have mentioned, look into java.sql.PreparedStatement
, and use java.sql.Date
or java.sql.Timestamp
. Something like (to use your original code as much as possible, you probably want to change it even more):
java.util.Date myDate = new java.util.Date("10/10/2009");
java.sql.Date sqlDate = new java.sql.Date(myDate.getTime());
sb.append("INSERT INTO USERS");
sb.append("(USER_ID, FIRST_NAME, LAST_NAME, SEX, DATE) ");
sb.append("VALUES ( ");
sb.append("?, ?, ?, ?, ?");
sb.append(")");
Connection conn = ...;// you'll have to get this connection somehow
PreparedStatement stmt = conn.prepareStatement(sb.toString());
stmt.setString(1, userId);
stmt.setString(2, myUser.GetFirstName());
stmt.setString(3, myUser.GetLastName());
stmt.setString(4, myUser.GetSex());
stmt.setDate(5, sqlDate);
stmt.executeUpdate(); // optionally check the return value of this call
One additional benefit of this approach is that it automatically escapes your strings for you (e.g., if were to insert someone with the last name "O'Brien", you'd have problems with your original implementation).
To create these constraints through the GUI you need the "indexes and keys" dialogue not the check constraints one.
But in your case you just need to run the piece of code you already have. It doesn't need to be entered into the expression dialogue at all.
this will unhide all files and folders on your computer
attrib -r -s -h /S /D
If you are running Windows, then you can do system("pause >nul");
or system("pause");
. It executes a console command to pause the program until you press a key. >nul
prevents it from saying Press any key to continue...
.
$ grep thestring thefile -5
-5
gets you 5
lines above and below the match 'thestring' is equivalent to -C 5
or -A 5 -B 5
.
Suggest
>>> print vars.__doc__
vars([object]) -> dictionary
Without arguments, equivalent to locals().
With an argument, equivalent to object.__dict__.
In otherwords, it essentially just wraps __dict__
Unfortunately all the answers in this post didn't work for me. I kept getting following error.
Failed to execute 'write' on 'Document': It isn't possible to write into a document from an asynchronously-loaded external script unless it is explicitly opened.
I found out that this happens if you use some 3rd party widgets (demandforce in my case) that also call additional external JavaScript files and try to insert HTML. Looking at the console and the JavaScript code, I noticed multiple lines like this:
document.write("<script type='text/javascript' "..."'></script>");
I used 3rd party JavaScript files (htmlParser.js and postscribe.js) from: https://github.com/krux/postscribe. That solved the problem in this post and fixed the above error at the same time.
(This was a quick and dirty way around under the tight deadline I have now. I am not comfortable with using 3rd party JavaScript library however. I hope someone can come up with a cleaner and better way.)
I had trouble understanding the answers so I'm assuming any other beginner like myself might have the same problem as me.
My solution does the same as the top answer but hopefully a little more clear and easy to understand for beginners or people just having trouble understanding in general.
To create a function with a completion handler
func yourFunctionName(finished: () -> Void) {
print("Doing something!")
finished()
}
to use the function
override func viewDidLoad() {
yourFunctionName {
//do something here after running your function
print("Tada!!!!")
}
}
Your output will be
Doing something
Tada!!!
Hope this helps!
I know there are already many options to solve this issue, but I would rather do the following to assert two lists in any oder:
assertTrue(result.containsAll(expected) && expected.containsAll(result))
SELECT * FROM `calendar` WHERE DATE_FORMAT(startTime, "%Y-%m-%d") = '2010-04-29'"
OR
SELECT * FROM `calendar` WHERE DATE(startTime) = '2010-04-29'
Here is the tutorial to install GBD.
Usually GNU Debugger might not be in your computer, so you would install it first. The installation steps are basic "configure", "make", and "make install".
Once installed, try which gdb
in terminal, to find the executable path of GDB.
If the jdk.tools is present in the .m2 repository. Still you get the error something like this:
missing artifact: jdk.tools.....c:.../jre/..
In the buildpath->configure build path-->Libraries.Just change JRE system library from JRE to JDK.
Even though --files
is no longer supported, you can use an env variable to provide a list of files:
// karma.conf.js
function getSpecs(specList) {
if (specList) {
return specList.split(',')
} else {
return ['**/*_spec.js'] // whatever your default glob is
}
}
module.exports = function(config) {
config.set({
//...
files: ['app.js'].concat(getSpecs(process.env.KARMA_SPECS))
});
});
Then in CLI:
$ env KARMA_SPECS="spec1.js,spec2.js" karma start karma.conf.js --single-run
This can be solved with an assignment tag:
from django import template
register = template.Library()
@register.assignment_tag
def query(qs, **kwargs):
""" template tag which allows queryset filtering. Usage:
{% query books author=author as mybooks %}
{% for book in mybooks %}
...
{% endfor %}
"""
return qs.filter(**kwargs)
This worked for me:
=NOT(ISBLANK(A1))
I wanted a box around NOT Blank cells in an entire worksheet. Use the $A1 if you want the WHOLE ROW formatted based on the A1, B1, etc result.
Thanks!
If I understand correctly, you're already using pandas.read_csv()
but would like to speed up the development process so that you don't have to load the file in every time you edit your script, is that right? I have a few recommendations:
you could load in only part of the CSV file using pandas.read_csv(..., nrows=1000)
to only load the top bit of the table, while you're doing the development
use ipython for an interactive session, such that you keep the pandas table in memory as you edit and reload your script.
convert the csv to an HDF5 table
updated use DataFrame.to_feather()
and pd.read_feather()
to store data in the R-compatible feather binary format that is super fast (in my hands, slightly faster than pandas.to_pickle()
on numeric data and much faster on string data).
You might also be interested in this answer on stackoverflow.
If you are behind a proxy, you can set the proxies in java program as below:
Properties systemSettings = System.getProperties();
systemSettings.put("proxySet", "true");
systemSettings.put("https.proxyHost", "https proxy of your org");
systemSettings.put("https.proxyPort", "8080");
If you are not behind a proxy, don't include the lines above in your code. Full working code to download a file when you are behind a proxy.
public static void main(String[] args) throws IOException {
String url="https://raw.githubusercontent.com/bpjoshi/fxservice/master/src/test/java/com/bpjoshi/fxservice/api/TradeControllerTest.java";
OutputStream outStream=null;
URLConnection connection=null;
InputStream is=null;
File targetFile=null;
URL server=null;
//Setting up proxies
Properties systemSettings = System.getProperties();
systemSettings.put("proxySet", "true");
systemSettings.put("https.proxyHost", "https proxy of my organisation");
systemSettings.put("https.proxyPort", "8080");
//The same way we could also set proxy for http
System.setProperty("java.net.useSystemProxies", "true");
//code to fetch file
try {
server=new URL(url);
connection = server.openConnection();
is = connection.getInputStream();
byte[] buffer = new byte[is.available()];
is.read(buffer);
targetFile = new File("src/main/resources/targetFile.java");
outStream = new FileOutputStream(targetFile);
outStream.write(buffer);
} catch (MalformedURLException e) {
System.out.println("THE URL IS NOT CORRECT ");
e.printStackTrace();
} catch (IOException e) {
System.out.println("Io exception");
e.printStackTrace();
}
finally{
if(outStream!=null) outStream.close();
}
}
Demian and Paul mention a good point; however, the placement of the code to execute really depends on how you want to use the data...
I'm a big fan of small data objects that can be used in many ways. If you follow the override (polymorphic) approach, your objects can only be used "one way".
This is where patterns come in...
You can use double-dispatch (as in the visitor pattern) to ask each object to "call you" passing itself -- this will resolve the type of the object. However (again) you'll need a class that can "do stuff" with all of the possible subtypes.
I prefer to use a strategy pattern, where you can register strategies for each subtype you want to handle. Something like the following. Note that this only helps for exact type matches, but has the advantage that it's extensible - third-party contributors can add their own types and handlers. (This is good for dynamic frameworks like OSGi, where new bundles can be added)
Hopefully this will inspire some other ideas...
package com.javadude.sample;
import java.util.HashMap;
import java.util.Map;
public class StrategyExample {
static class SomeCommonSuperType {}
static class SubType1 extends SomeCommonSuperType {}
static class SubType2 extends SomeCommonSuperType {}
static class SubType3 extends SomeCommonSuperType {}
static interface Handler<T extends SomeCommonSuperType> {
Object handle(T object);
}
static class HandlerMap {
private Map<Class<? extends SomeCommonSuperType>, Handler<? extends SomeCommonSuperType>> handlers_ =
new HashMap<Class<? extends SomeCommonSuperType>, Handler<? extends SomeCommonSuperType>>();
public <T extends SomeCommonSuperType> void add(Class<T> c, Handler<T> handler) {
handlers_.put(c, handler);
}
@SuppressWarnings("unchecked")
public <T extends SomeCommonSuperType> Object handle(T o) {
return ((Handler<T>) handlers_.get(o.getClass())).handle(o);
}
}
public static void main(String[] args) {
HandlerMap handlerMap = new HandlerMap();
handlerMap.add(SubType1.class, new Handler<SubType1>() {
@Override public Object handle(SubType1 object) {
System.out.println("Handling SubType1");
return null;
} });
handlerMap.add(SubType2.class, new Handler<SubType2>() {
@Override public Object handle(SubType2 object) {
System.out.println("Handling SubType2");
return null;
} });
handlerMap.add(SubType3.class, new Handler<SubType3>() {
@Override public Object handle(SubType3 object) {
System.out.println("Handling SubType3");
return null;
} });
SubType1 subType1 = new SubType1();
handlerMap.handle(subType1);
SubType2 subType2 = new SubType2();
handlerMap.handle(subType2);
SubType3 subType3 = new SubType3();
handlerMap.handle(subType3);
}
}
Great question: How does our
differ from my
and what does our
do?
In Summary:
Available since Perl 5, my
is a way to declare non-package variables, that are:
$package_name::variable
.On the other hand, our
variables are package variables, and thus automatically:
$package_name::variable
.Declaring a variable with our
allows you to predeclare variables in order to use them under use strict
without getting typo warnings or compile-time errors. Since Perl 5.6, it has replaced the obsolete use vars
, which was only file-scoped, and not lexically scoped as is our
.
For example, the formal, qualified name for variable $x
inside package main
is $main::x
. Declaring our $x
allows you to use the bare $x
variable without penalty (i.e., without a resulting error), in the scope of the declaration, when the script uses use strict
or use strict "vars"
. The scope might be one, or two, or more packages, or one small block.
If you want an R solution, here's a small convenience function I sometimes use to find where the offending (multiByte) character is lurking. Note that it is the next character to what gets printed. This works because print
will work fine, but substr
throws an error when multibyte characters are present.
find_offending_character <- function(x, maxStringLength=256){
print(x)
for (c in 1:maxStringLength){
offendingChar <- substr(x,c,c)
#print(offendingChar) #uncomment if you want the indiv characters printed
#the next character is the offending multibyte Character
}
}
string_vector <- c("test", "Se\x96ora", "works fine")
lapply(string_vector, find_offending_character)
I fix that character and run this again. Hope that helps someone who encounters the invalid multibyte string
error.
int a = 1;
char b = (char) (a + 48);
In ASCII, every char have their own number. And char '0' is 48 for decimal, '1' is 49, and so on. So if
char b = '2';
int a = b = 50;
As pointed out by @Nenad Bulatovic one has to be careful while adding libraries(19th step). one should not add any trailing spaces while adding each library line by line. otherwise mingw goes haywire.
This is because keypress
events are fired before the new character is added to the value
of the element (so the first keypress
event is fired before the first character is added, while the value
is still empty). You should use keyup
instead, which is fired after the character has been added.
Note that, if your element #dSuggest
is the same as input:text[name=dSuggest]
you can simplify this code considerably (and if it isn't, having an element with a name that is the same as the id
of another element is not a good idea).
$('#dSuggest').keypress(function() {
var dInput = this.value;
console.log(dInput);
$(".dDimension:contains('" + dInput + "')").css("display","block");
});
In the head section of your html document:
<link rel="stylesheet" type="text/css" href="/path/to/ABCD.css">
Your css file should be css only and not contain any markup.
perlfaq8 answers a very similar question with using the rel2abs()
function on $0
. That function can be found in File::Spec.
I have some issue, the fix is:
greetings!
Use this code:
HttpContext.Current.Server.MapPath("~")
Detailed Reference:
Server.MapPath
specifies the relative or virtual path to map to a physical directory.
Server.MapPath(".")
returns the current physical directory of the
file (e.g. aspx) being executedServer.MapPath("..")
returns the parent directoryServer.MapPath("~")
returns the physical path to the root of the
applicationServer.MapPath("/")
returns the physical path to the root of the
domain name (is not necessarily the same as the root of the
application)An example:
Let's say you pointed a web site application (http://www.example.com/) to
C:\Inetpub\wwwroot
and installed your shop application (sub web as virtual directory in IIS, marked as application) in
D:\WebApps\shop
For example, if you call Server.MapPath
in following request:
http://www.example.com/shop/products/GetProduct.aspx?id=2342
then:
Server.MapPath(".") returns D:\WebApps\shop\products
Server.MapPath("..") returns D:\WebApps\shop
Server.MapPath("~") returns D:\WebApps\shop
Server.MapPath("/") returns C:\Inetpub\wwwroot
Server.MapPath("/shop") returns D:\WebApps\shop
If Path starts with either a forward (/) or backward slash (), the MapPath
method returns a path as if Path were a full, virtual path.
If Path doesn't start with a slash, the MapPath
method returns a path relative to the directory of the request being processed.
Note: in C#, @ is the verbatim literal string operator meaning that the string should be used "as is" and not be processed for escape sequences.
Footnotes
Server.MapPath(null)
and Server.MapPath("")
will produce this effect too.
You can also use strdup:
char* p = strdup("abc");
Looks like you haven't upgraded PHP modules, they are not compatible.
Check extension_dir
directive in your php.ini. It should point to folder with 5.2 modules.
Create and open a phpinfo file and search for extension_dir
to find the path.
Since you did upgrade, there is a chance that you are using old php.ini that is pointing to 5.1 modules
You can do like below to achieve your result:
import seaborn as sns
import matplotlib.pyplot as plt
import pandas as pd
import numpy as np
....
....
#use filter with plot
#or
fg=sns.factorplot('Retailer country', data=df1[(df1['Retailer country']=='United States') | (df1['Retailer country']=='France')], kind='count')
fg.set_xlabels('Retailer country')
plt.show()
#also
#and
fg=sns.factorplot('Retailer country', data=df1[(df1['Retailer country']=='United States') & (df1['Year']=='2013')], kind='count')
fg.set_xlabels('Retailer country')
plt.show()
function uploadFile() {
var fileElement = document.getElementById("fileToUpload");
var fileExtension = "";
if (fileElement.value.lastIndexOf(".") > 0) {
fileExtension = fileElement.value.substring(fileElement.value.lastIndexOf(".") + 1, fileElement.value.length);
}
if (fileExtension == "odx-d"||fileExtension == "odx"||fileExtension == "pdx"||fileExtension == "cmo"||fileExtension == "xml") {
var fd = new FormData();
fd.append("fileToUpload", document.getElementById('fileToUpload').files[0]);
var xhr = new XMLHttpRequest();
xhr.upload.addEventListener("progress", uploadProgress, false);
xhr.addEventListener("load", uploadComplete, false);
xhr.addEventListener("error", uploadFailed, false);
xhr.addEventListener("abort", uploadCanceled, false);
xhr.open("POST", "/post_uploadReq");
xhr.send(fd);
}
else {
alert("You must select a valid odx,pdx,xml or cmo file for upload");
return false;
}
}
tried this , works very well
Starting with MVC 5, you can also use Attribute Routing to move the URL parameter configuration to your controllers.
A detailed discussion is available here: http://blogs.msdn.com/b/webdev/archive/2013/10/17/attribute-routing-in-asp-net-mvc-5.aspx
Summary:
First you enable attribute routing
public class RouteConfig
{
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapMvcAttributeRoutes();
}
}
Then you can use attributes to define parameters and optionally data types
public class BooksController : Controller
{
// eg: /books
// eg: /books/1430210079
[Route("books/{isbn?}")]
public ActionResult View(string isbn)
OAuth 2.0 promises to simplify things in following ways:
FYI: Same problem with running on a build server (Jenkins with msbuild 15 installed, driven from VS 2017 on a .NET Core 2.1 web project).
In my case it was the use of the "publish" target with msbuild that ignored the profile.
So my msbuild command started with:
msbuild /t:restore;build;publish
This correctly triggerred the publish process, but no combination or variation of "/p:PublishProfile=FolderProfile" ever worked to select the profile I wanted to use ("FolderProfile").
When I stopped using the publish target:
msbuild /t:restore;build /p:DeployOnBuild=true /p:PublishProfile=FolderProfile
I (foolishly) thought that it would make no difference, but as soon as I used the DeployOnBuild switch it correctly picked up the profile.
Original answer using git's start-ssh-agent
Make sure you have Git installed and have git's cmd
folder in your PATH. For example, on my computer the path to git's cmd folder is C:\Program Files\Git\cmd
Make sure your id_rsa
file is in the folder c:\users\yourusername\.ssh
Restart your command prompt if you haven't already, and then run start-ssh-agent
. It will find your id_rsa
and prompt you for the passphrase
Update 2019 - A better solution if you're using Windows 10: OpenSSH is available as part of Windows 10 which makes using SSH from cmd/powershell much easier in my opinion. It also doesn't rely on having git installed, unlike my previous solution.
Open Manage optional features
from the start menu and make sure you have Open SSH Client
in the list. If not, you should be able to add it.
Open Services
from the start Menu
Scroll down to OpenSSH Authentication Agent
> right click > properties
Change the Startup type from Disabled to any of the other 3 options. I have mine set to Automatic (Delayed Start)
Open cmd and type where ssh
to confirm that the top listed path is in System32. Mine is installed at C:\Windows\System32\OpenSSH\ssh.exe
. If it's not in the list you may need to close and reopen cmd.
Once you've followed these steps, ssh-agent, ssh-add and all other ssh commands should now work from cmd. To start the agent you can simply type ssh-agent
.
GIT_SSH
environment variable to the output of where ssh
which you ran before (e.g C:\Windows\System32\OpenSSH\ssh.exe
). This is to stop inconsistencies between the version of ssh you're using (and your keys are added/generated with) and the version that git uses internally. This should prevent issues that are similar to thisSome nice things about this solution:
id_rsa
Hope this helps
I don't know of anyway to step through the execution of a .bat file but you can use echo
and pause
to help with debugging.
ECHO
Will echo a message in the batch file. Such as ECHO Hello World will print Hello World on the screen when executed. However, without @ECHO OFF at the beginning of the batch file you'll also get "ECHO Hello World" and "Hello World." Finally, if you'd just like to create a blank line, type ECHO. adding the period at the end creates an empty line.PAUSE
Prompt the user to press any key to continue.
Source: Batch File Help
@workmad3: answer has more good tips for working with the echo
command.
Another helpful resource... DDB: DOS Batch File Tips
Another cause: store_result() cannot be called twice.
For instance, in the following code, Error 5 is printed.
<?php
$db = new mysqli("localhost", "something", "something", "something");
$stmt = $db->stmt_init();
if ($stmt->error) printf("Error 1 : %s\n", $stmt->error);
$stmt->prepare("select 1");
if ($stmt->error) printf("Error 2 : %s\n", $stmt->error);
$stmt->execute();
if ($stmt->error) printf("Error 3 : %s\n", $stmt->error);
$stmt->store_result();
if ($stmt->error) printf("Error 4 : %s\n", $stmt->error);
$stmt->store_result();
if ($stmt->error) printf("Error 5 : %s\n", $stmt->error);
(This may not be relevant to the original sample code, but it can be relevant to people seeking answers to this error.)
Try sorting index after concatenating them
result=pd.concat([df1,df2]).sort_index()
I think the easiest approach is just to change the last line to
txtBlock.Text = await response.Content.ReadAsStringAsync(); //right!
This way you don't need to introduce any stream readers and you don't need any extension methods.
This is what I did to get rid of all the lock ref issues:
git gc --prune=now
git remote prune origin
This is probably what you only need to do too.
I recommend checking out docker-compose. Here's how that would work:
Create a file named, docker-compose.yml that looks like this:
version: '2'
services:
mysql:
image: mariadb:10.1.19
ports:
- 8083:3306
volumes:
- ./mysql:/var/lib/mysql
environment:
MYSQL_ROOT_PASSWORD: wp
Next, run:
$ docker-compose up
Notes:
Now, you can access the mysql console thusly:
$ mysql -P 8083 --protocol=tcp -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.5.5-10.1.19-MariaDB-1~jessie mariadb.org binary distribution
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
Notes:
You can pass the -d flag to run the mysql/mariadb container in detached/background mode.
The password is "wp" which is defined in the docker-compose.yml file.
Same advice as maniekq but full example with docker-compose.
request.FILES['filename'].name
From the request
documentation.
If you don't know the key, you can iterate over the files:
for filename, file in request.FILES.iteritems():
name = request.FILES[filename].name
Just came across the same problem trying to make a bad USB...
I tried to run this command in admin cmd
java -jar c:\fw\ducky\duckencode.jar -I c:\fw\ducky\HelloWorld.txt -o c:\fw\ducky\inject.bin
But got this error:
Error: unable to access jarfile c:\fw\ducky\duckencode.jar
Solution
1st step
Right click the jarfile in question. Click properties. Click the unblock tab in bottom right corner. The file was blocked, because it was downloaded and not created on my PC.
2nd step
In the cmd I changed the directory to where the jar file is located.
cd C:\fw\ducky\
Then I typed dir
and saw the file was named duckencode.jar.jar
So in cmd I changed the original command to reference the file with .jar.jar
java -jar c:\fw\ducky\duckencode.jar.jar -I c:\fw\ducky\HelloWorld.txt -o c:\fw\ducky\inject.bin
That command executed without error messages and the inject.bin I was trying to create was now located in the directory.
Hope this helps.
for what it's worth I'm using node.js 0.6.7 on OSX and I couldn't get 'Authorization':auth to work with our proxy, it needed to be set to 'Proxy-Authorization':auth my test code is:
var http = require("http");
var auth = 'Basic ' + new Buffer("username:password").toString('base64');
var options = {
host: 'proxyserver',
port: 80,
method:"GET",
path: 'http://www.google.com',
headers:{
"Proxy-Authorization": auth,
Host: "www.google.com"
}
};
http.get(options, function(res) {
console.log(res);
res.pipe(process.stdout);
});
I have changed in my activity but effected. Here is my code:
View layout = getLayoutInflater().inflate(R.layout.list_group,null);
try {
LinearLayout linearLayout = (LinearLayout) layout.findViewById(R.id.ldrawernav);
linearLayout.setBackgroundColor(Color.parseColor("#ffffff"));
}
catch (Exception e) {
}
}
SELECT * FROM TABLE
WHERE DATE BETWEEN '09/16/2010 05:00:00' and '09/21/2010 09:00:00'
As per my test, I can verify that the Spark-Shell (based on Scala) is way faster than the other tools (GREP, SED, AWK, PERL, WC). Here is the result of the test that I ran on a file which had 23782409 lines
time grep -c $ my_file.txt;
real 0m44.96s user 0m41.59s sys 0m3.09s
time wc -l my_file.txt;
real 0m37.57s user 0m33.48s sys 0m3.97s
time sed -n '$=' my_file.txt;
real 0m38.22s user 0m28.05s sys 0m10.14s
time perl -ne 'END { $_=$.;if(!/^[0-9]+$/){$_=0;};print "$_" }' my_file.txt
;
real 0m23.38s user 0m20.19s sys 0m3.11s
time awk 'END { print NR }' my_file.txt;
real 0m19.90s user 0m16.76s sys 0m3.12s
spark-shell
import org.joda.time._
val t_start = DateTime.now()
sc.textFile("file://my_file.txt").count()
val t_end = DateTime.now()
new Period(t_start, t_end).toStandardSeconds()
res1: org.joda.time.Seconds = PT15S
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="main.css" />
</head>
<body>
<div id="page-container">
<div id="content-wrap">
<!-- all other page content -->
</div>
<footer id="footer"></footer>
</div>
</body>
</html>
#page-container {
position: relative;
min-height: 100vh;
}
#content-wrap {
padding-bottom: 2.5rem; /* Footer height */
}
#footer {
position: absolute;
bottom: 0;
width: 100%;
height: 2.5rem; /* Footer height */
}
I came across a similar problem with a meta tag. In the designer.cs
, the control was defined as:
protected global::System.Web.UI.HtmlControl.HtmlGenericControl metatag;
I had to move the definition to the .aspx.cs
file and define as:
protected global::System.Web.UI.HtmlControl.HtmlMeta metatag;
It is all about the right tool for the job. Neither is better 100% of the time. Both systems were created by man and have flaws. Sorry, but we suck and making perfect stuff.
I like dynamic typing because it gets out of my way, but yes runtime errors can creep up that I didn't plan for. Where as static typing may fix the aforementioned errors, but drive a novice(in typed languages) programmer crazy trying to cast between a constant char and a string.
I'm on my third angularjs app and the folder structure has improved every time so far. I keep mine simple right now.
index.html (or .php)
/resources
/css
/fonts
/images
/js
/controllers
/directives
/filters
/services
/partials (views)
I find that good for single apps. I haven't really had a project yet where I'd need multiple.
You have an error in your syntax here:
this._possessions = new Thing[100]();
This doesn't create an "array of things". To create an array of things, you can simply use the array literal expression:
this._possessions = [];
Of the array constructor if you want to set the length:
this._possessions = new Array(100);
I have created a brief working example you can try in the playground.
module Entities {
class Thing {
}
export class Person {
private _name: string;
private _possessions: Thing[];
private _mostPrecious: Thing;
constructor (name: string) {
this._name = name;
this._possessions = [];
this._possessions.push(new Thing())
this._possessions[100] = new Thing();
}
}
}
As also explained in this Wikipedia article Curve orientation, given 3 points p
, q
and r
on the plane (i.e. with x and y coordinates), you can calculate the sign of the following determinant
If the determinant is negative (i.e. Orient(p, q, r) < 0
), then the polygon is oriented clockwise (CW). If the determinant is positive (i.e. Orient(p, q, r) > 0
), the polygon is oriented counterclockwise (CCW). The determinant is zero (i.e. Orient(p, q, r) == 0
) if points p
, q
and r
are collinear.
In the formula above, we prepend the ones in front of the coordinates of p
, q
and r
because we are using homogeneous coordinates.
This warning comes because your dataframe x
is a copy of a slice. This is not easy to know why, but it has something to do with how you have come to the current state of it.
You can either create a proper dataframe
out of x by doing
x = x.copy()
This will remove the warning, but it is not the proper way
You should be using the DataFrame.loc
method, as the warning suggests, like this:
x.loc[:,'Mass32s'] = pandas.rolling_mean(x.Mass32, 5).shift(-2)
On server
Install rsub:
wget -O /usr/local/bin/rsub \https://raw.github.com/aurora/rmate/master/rmate
chmod a+x /usr/local/bin/rsub
On local
On Sublime Text 3, open Package Manager (Ctrl-Shift-P on Linux/Win, Cmd-Shift-P on Mac, Install Package), and search for rsub and install it
ssh -R 52698:localhost:52698 server_user@server_address
rsub path_to_file/file.txt
As of today (2018/09/05) you should use : https://github.com/randy3k/RemoteSubl because you can find it in packagecontrol.io while "rsub" is not present.
Why not a/b/(c|d|e)
? I just tried with Saxon XML library (wrapped up nicely with some Clojure goodness), and it seems to work.
abc.xml
is the doc described by OP.
(require '[saxon :as xml])
(def abc-doc (xml/compile-xml (slurp "abc.xml")))
(xml/query "a/b/(c|d|e)" abc-doc)
=> (#<XdmNode <c>C1</c>>
#<XdmNode <d>D1</d>>
#<XdmNode <e>E1</e>>
#<XdmNode <c>C2</c>>
#<XdmNode <d>D2</d>>
#<XdmNode <e>E1</e>>)
would take time to route through TeamViewer's servers (TeamViewer bypasses corporate Symmetric NATs by simply proxying traffic through their servers)
You'll find that TeamViewer rarely needs to relay traffic through their own servers. TeamViewer penetrates NAT and networks complicated by NAT using NAT traversal (I think it is UDP hole-punching, like Google's libjingle).
They do use their own servers to middle-man in order to do the handshake and connection set-up, but most of the time the relationship between client and server will be P2P (best case, when the hand-shake is successful). If NAT traversal fails, then TeamViewer will indeed relay traffic through its own servers.
I've only ever seen it do this when a client has been behind double-NAT, though.
Merge replication. You can create the subscriber (2008) from the distributor (2008). After the database has fully synchronized, drop the subscription and the publication.
Don't know about what the error you are facing exactly. But log4j:WARN No appenders could be found for logger error
, is due to the log4j jar file that you have included in your project.
Initializing log4j is needed but actually Log4j is not necessary for your project. So Right click on your Project → Properties → Java Build Path → Libraries.. Search for log4j jar file and remove it.
Hope it will work fine now.
This is what I like to do:
window.location.search
.substr(1)
.split('&')
.reduce(
function(accumulator, currentValue) {
var pair = currentValue
.split('=')
.map(function(value) {
return decodeURIComponent(value);
});
accumulator[pair[0]] = pair[1];
return accumulator;
},
{}
);
Of course you can make it more compact using modern syntax or writing everything into one line...
I leave that up to you.
Socks4 is a very simple protocol to implement. You listen for the initial connection, connect to the host/port that was requested by the client, send the success code to the client then forward the outgoing and incoming streams across sockets.
If you go with HTTP you'll have to read and possibly set/remove some HTTP headers so that's a little more work.
If I remember correctly, SSL will work across HTTP and Socks proxies. For a HTTP proxy you implement the CONNECT verb, which works much like the socks4 as described above, then the client opens the SSL connection across the proxied tcp stream.
According to the documentation, there needs to be a top level layout set.
A top level layout is necessary to ensure that your widgets will resize correctly when its window is resized. To check if you have set a top level layout, preview your widget and attempt to resize the window by dragging the size grip.
You can set one by clearing the selection and right clicking on the form itself and choosing one of the layouts available in the context menu.
You're targeting the wrong item with that jQuery selector. The name
of your search bar is searchBar
, not the id
. What you want to use is $('#main_search').val('hi')
.
SqlConnection con = new SqlConnection(@"Some Connection String");//connection object
SqlDataAdapter da = new SqlDataAdapter("ParaEmp_Select",con);//SqlDataAdapter class object
da.SelectCommand.CommandType = CommandType.StoredProcedure; //command sype
da.SelectCommand.Parameters.Add("@Contactid", SqlDbType.Int).Value = 123; //pass perametter
DataTable dt = new DataTable(); //dataset class object
da.Fill(dt); //call the stored producer
Try setLenient(false)
.
Addendum: It looks like you're recognizing variously formatted Date
strings. If you have to do entry, you might like looking at this example that extends InputVerifier
.
n=int(input())
pair = dict()
for i in range(0,n):
word = input().split()
key = word[0]
value = word[1]
pair[key]=value
print(pair)
No, according to Apple here:
Note: You cannot install apps from the App Store in simulation environments.
The [:-1]
removes the last element. Instead of
a[3:-1]
write
a[3:]
You can read up on Python slicing notation here: Explain Python's slice notation
NumPy slicing is an extension of that. The NumPy tutorial has some coverage: Indexing, Slicing and Iterating.
If you don't want to use Metadata you can use a [UIHint("PeriodType")]
attribute to decorate the property or if its a complex type you don't have to decorate anything. EditorFor will then look for a PeriodType.aspx or ascx file in the EditorTemplates folder and use that instead.
Here's an explanation I wrote recently to help with the void of information on this attribute. http://www.marklio.com/marklio/PermaLink,guid,ecc34c3c-be44-4422-86b7-900900e451f9.aspx (Internet Archive Wayback Machine link)
To quote the most relevant bits:
[Installing .NET] v4 is “non-impactful”. It should not change the behavior of existing components when installed.
The useLegacyV2RuntimeActivationPolicy attribute basically lets you say, “I have some dependencies on the legacy shim APIs. Please make them work the way they used to with respect to the chosen runtime.”
Why don’t we make this the default behavior? You might argue that this behavior is more compatible, and makes porting code from previous versions much easier. If you’ll recall, this can’t be the default behavior because it would make installation of v4 impactful, which can break existing apps installed on your machine.
The full post explains this in more detail. At RTM, the MSDN docs on this should be better.
int id = getResources().getIdentifier("gameover", "drawable", getPackageName());
ImageView imageView = new ImageView(this);
LinearLayout.LayoutParams vp =
new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
imageView.setLayoutParams(vp);
imageView.setImageResource(id);
someLinearLayout.addView(imageView);
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html dir="ltr" lang="en-US">
<head>
<meta charset="UTF-8" />
<title>JSP with the current date</title>
</head>
<body>
<%java.text.DateFormat df = new java.text.SimpleDateFormat("dd/MM/yyyy"); %>
<h1>Current Date: <%= df.format(new java.util.Date()) %> </h1>
</body>
</html>
Output: Current Date: 10/03/2010
Well I found the answer set "aaSorting" to an empty array:
$(document).ready( function() {
$('#example').dataTable({
/* Disable initial sort */
"aaSorting": []
});
})
For newer versions of Datatables (>= 1.10) use order option:
$(document).ready( function() {
$('#example').dataTable({
/* No ordering applied by DataTables during initialisation */
"order": []
});
})
..And now mine
I had the button linked to a method which accessed another button's parameter and that worked great BUT as soon I tried to do something with the button itself, I got a crash. While compiling, no error has been displayed.. Solution?
I failed to link the button to the file's owner. So if anyone here is as stupid as me, try this :)
One possible idea is to write separate constructor function
//Something is the structure we work with
type Something struct {
Text string
DefaultText string
}
// NewSomething create new instance of Something
func NewSomething(text string) Something {
something := Something{}
something.Text = text
something.DefaultText = "default text"
return something
}
Adding some actual references to W3 docs that authoritatively explain the role of the 'name' attribute on form elements. (For what it's worth, I arrived here while exploring exactly how Stripe.js works to implement safe interaction with payment gateway Stripe. In particular, what causes a form input element to get submitted back to the server, or prevents it from being submitted?)
The following W3 docs are relevent:
HTML 4: https://www.w3.org/TR/html401/interact/forms.html#control-name Section 17.2 Controls
HTML 5: https://www.w3.org/TR/html5/forms.html#form-submission-0 and https://www.w3.org/TR/html5/forms.html#constructing-the-form-data-set Section 4.10.22.4 Constructing the form data set.
As explained therein, an input element will be submitted by the browser if and only if it has a valid 'name' attribute.
As others have noted, the 'id' attribute uniquely identifies DOM elements, but is not involved in normal form submission. (Though 'id' or other attributes can of course be used by javascript to obtain form values, which javascript could then use for AJAX submissions and so on.)
One oddity regarding previous answers/commenters concern about id's values and name's values being in the same namespace. So far as I can tell from the specs, this applied to some deprecated uses of the name attribute (not on form elements). For example https://www.w3.org/TR/html5/obsolete.html:
"Authors should not specify the name attribute on a elements. If the attribute is present, its value must not be the empty string and must neither be equal to the value of any of the IDs in the element's home subtree other than the element's own ID, if any, nor be equal to the value of any of the other name attributes on a elements in the element's home subtree. If this attribute is present and the element has an ID, then the attribute's value must be equal to the element's ID. In earlier versions of the language, this attribute was intended as a way to specify possible targets for fragment identifiers in URLs. The id attribute should be used instead."
Clearly in this special case there's some overlap between id and name values for 'a' tags. But this seems to be a peculiarity of processing for fragment ids, not due to general sharing of namespace of ids and names.
I met some problems in Clion and finally, I solved them. Here is some experience.
Jokab's answer helped me a lot but in my case I could not push to github until I logged in my github account to my git bash so i ran the following commands
git config credential.helper store
then
git push http://github.com/[user name]/[repo name].git
After the second command a GUI window appeared, I provided my login credentials and it worked for me.
Ctrl+Shift+P, then "Convert Indentation to Tabs"
I had the same problem. Just after enabling Internet Virtualization from BIOS. After that let the system boot and install HAXM once again. Now emulator will run faster than before and HAXM will work. Enjoy!!
html
<h2 class="example example2">A heading with class="example"</h2>
javascritp code
var element = document.querySelectorAll(".example.example2");
element.style.backgroundColor = "green";
The querySelectorAll() method returns all elements in the document that matches a specified CSS selector(s), as a static NodeList object.
The NodeList object represents a collection of nodes. The nodes can be accessed by index numbers. The index starts at 0.
also learn more about https://www.w3schools.com/jsref/met_document_queryselectorall.asp
== Thank You ==
Xamarin.iOS version for accepted answer on how to resize and then crop UIImage (Aspect Fill) is below
public static UIImage ScaleAndCropImage(UIImage sourceImage, SizeF targetSize)
{
var imageSize = sourceImage.Size;
UIImage newImage = null;
var width = imageSize.Width;
var height = imageSize.Height;
var targetWidth = targetSize.Width;
var targetHeight = targetSize.Height;
var scaleFactor = 0.0f;
var scaledWidth = targetWidth;
var scaledHeight = targetHeight;
var thumbnailPoint = PointF.Empty;
if (imageSize != targetSize)
{
var widthFactor = targetWidth / width;
var heightFactor = targetHeight / height;
if (widthFactor > heightFactor)
{
scaleFactor = widthFactor;// scale to fit height
}
else
{
scaleFactor = heightFactor;// scale to fit width
}
scaledWidth = width * scaleFactor;
scaledHeight = height * scaleFactor;
// center the image
if (widthFactor > heightFactor)
{
thumbnailPoint.Y = (targetHeight - scaledHeight) * 0.5f;
}
else
{
if (widthFactor < heightFactor)
{
thumbnailPoint.X = (targetWidth - scaledWidth) * 0.5f;
}
}
}
UIGraphics.BeginImageContextWithOptions(targetSize, false, 0.0f);
var thumbnailRect = new RectangleF(thumbnailPoint, new SizeF(scaledWidth, scaledHeight));
sourceImage.Draw(thumbnailRect);
newImage = UIGraphics.GetImageFromCurrentImageContext();
if (newImage == null)
{
Console.WriteLine("could not scale image");
}
//pop the context to get back to the default
UIGraphics.EndImageContext();
return newImage;
}
You can also use this,
android:layout_centerHorizontal="true"
The image will be placed at the center of the screen
Perhaps the easiest way to see which extensions are (compiled and) loaded (not in cli) is to have a server run the following:
<?php
$ext = get_loaded_extensions();
asort($ext);
foreach ($ext as $ref) {
echo $ref . "\n";
}
PHP cli does not necessarily have the same extensions loaded.
Make a copy of your OpenSSL config in your home directory:
cp /System/Library/OpenSSL/openssl.cnf ~/openssl-temp.cnf
or on Linux:
cp /etc/ssl/openssl.cnf ~/openssl-temp.cnf
Add Subject Alternative Name to openssl-temp.cnf
, under [v3_ca]
:
[ v3_ca ]
subjectAltName = DNS:localhost
Replace localhost
by the domain for which you want to generate that certificate.
Generate certificate:
sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
-config ~/openssl-temp.cnf
-keyout /path/to/your.key -out /path/to/your.crt
You can then delete openssl-temp.cnf
The underlying issue is using max-device-width
vs plain old max-width
.
Using the "device" keyword targets physical dimension of the screen, not the width of the browser window.
For example:
@media only screen and (max-device-width: 480px) {
/* STYLES HERE for DEVICES with physical max-screen width of 480px */
}
Versus
@media only screen and (max-width: 480px) {
/* STYLES HERE for BROWSER WINDOWS with a max-width of 480px.
This will work on desktops when the window is narrowed. */
}
Nice elegant solution with ROW_NUMBER window function (supported by PostgreSQL - see in SQL Fiddle):
SELECT username, ip, time_stamp FROM (
SELECT username, ip, time_stamp,
ROW_NUMBER() OVER (PARTITION BY username ORDER BY time_stamp DESC) rn
FROM Users
) tmp WHERE rn = 1;
The Right way is to define ItemDecoration
for the RecyclerView
is as following
SimpleDividerItemDecoration.java
public class SimpleDividerItemDecoration extends RecyclerView.ItemDecoration {
private Drawable mDivider;
public SimpleDividerItemDecoration(Context context) {
mDivider = ContextCompat.getDrawable(context, R.drawable.line_divider);
}
@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
int left = parent.getPaddingLeft();
int right = parent.getWidth() - parent.getPaddingRight();
int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
View child = parent.getChildAt(i);
RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
int top = child.getBottom() + params.bottomMargin;
int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
}
line_divider.xml:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<size
android:width="1dp"
android:height="1dp" />
<solid android:color="@color/dark_gray" />
</shape>
Finally set it like this
recyclerView.addItemDecoration(new SimpleDividerItemDecoration(this));
As pointed by @Alan Solitar
context.getResources().getDrawable(R.drawable.line_divider);
is depreciated instead of that you can use
ContextCompat.getDrawable(context,R.drawable.line_divider);
At least for pip 1.3.1, it honors the http_proxy and https_proxy environment variables. Make sure you define both, as it will access the PYPI index using https.
export https_proxy="http://<proxy.server>:<port>"
pip install TwitterApi
I had the same problem, and I felt on your post.
I think the easiest way to solve this issue is by using redis Hashtable.
It allows you to save a Hash, with different fields and values associated with every field.
To get all the fiels and values client.HGETALLL
does the trick. It returns an array of
all the fields followed by their values.
More informations here https://redis.io/commands/hgetall
You are iterating over one string (word
), but then using the index into that to look up a character in so_far
. There is no guarantee that these two strings have the same length.
private void cleanlistbox(object sender, EventArgs e)
{
listBox1.Items.Clear();
}
You should have if row[2] != "0"
. Otherwise it's not checking to see if the string value is equal to 0.
You can change background-color and use !important;
.btn-primary {_x000D_
background-color: #003c79 !important;_x000D_
border-color: #15548b !important;_x000D_
color: #fff;_x000D_
}_x000D_
_x000D_
.btn-primary:hover {_x000D_
background-color: #4289c6 !important;_x000D_
border-color: #3877ae !important;_x000D_
color: #fff;_x000D_
}_x000D_
_x000D_
.btn-primary.focus, .btn-primary:focus {_x000D_
background-color: #4289c6 !important;_x000D_
border-color: #3877ae !important;_x000D_
color: #fff;_x000D_
}
_x000D_
Simple solution if you are using C++11. Probably O(1) time as well:
st.pop_back();
Import namespace :
using System.Configuration;
Create ConfigurationElement Company :
public class Company : ConfigurationElement
{
[ConfigurationProperty("name", IsRequired = true)]
public string Name
{
get
{
return this["name"] as string;
}
}
[ConfigurationProperty("code", IsRequired = true)]
public string Code
{
get
{
return this["code"] as string;
}
}
}
ConfigurationElementCollection:
public class Companies
: ConfigurationElementCollection
{
public Company this[int index]
{
get
{
return base.BaseGet(index) as Company ;
}
set
{
if (base.BaseGet(index) != null)
{
base.BaseRemoveAt(index);
}
this.BaseAdd(index, value);
}
}
public new Company this[string responseString]
{
get { return (Company) BaseGet(responseString); }
set
{
if(BaseGet(responseString) != null)
{
BaseRemoveAt(BaseIndexOf(BaseGet(responseString)));
}
BaseAdd(value);
}
}
protected override System.Configuration.ConfigurationElement CreateNewElement()
{
return new Company();
}
protected override object GetElementKey(System.Configuration.ConfigurationElement element)
{
return ((Company)element).Name;
}
}
and ConfigurationSection:
public class RegisterCompaniesConfig
: ConfigurationSection
{
public static RegisterCompaniesConfig GetConfig()
{
return (RegisterCompaniesConfig)System.Configuration.ConfigurationManager.GetSection("RegisterCompanies") ?? new RegisterCompaniesConfig();
}
[System.Configuration.ConfigurationProperty("Companies")]
[ConfigurationCollection(typeof(Companies), AddItemName = "Company")]
public Companies Companies
{
get
{
object o = this["Companies"];
return o as Companies ;
}
}
}
and you must also register your new configuration section in web.config (app.config):
<configuration>
<configSections>
<section name="Companies" type="blablabla.RegisterCompaniesConfig" ..>
then you load your config with
var config = RegisterCompaniesConfig.GetConfig();
foreach(var item in config.Companies)
{
do something ..
}
I know this question is 8 year old, however there was and is a better solution for this purpose. It's always been there, and still is: User32.dll!MessageBoxTimeout.
This is an undocumented function used by Microsoft Windows, and it does exactly what you want and even more. It supports different languages as well.
C# Import:
[DllImport("user32.dll", SetLastError = true)]
public static extern int MessageBoxTimeout(IntPtr hWnd, String lpText, String lpCaption, uint uType, Int16 wLanguageId, Int32 dwMilliseconds);
[DllImport("user32.dll", SetLastError = true)]
public static extern IntPtr GetForegroundWindow();
How to use it in C#:
uint uiFlags = /*MB_OK*/ 0x00000000 | /*MB_SETFOREGROUND*/ 0x00010000 | /*MB_SYSTEMMODAL*/ 0x00001000 | /*MB_ICONEXCLAMATION*/ 0x00000030;
NativeFunctions.MessageBoxTimeout(NativeFunctions.GetForegroundWindow(), $"Kitty", $"Hello", uiFlags, 0, 5000);
Work smarter, not harder.
A modern portable solution with requests
:
import requests
def internet():
"""Detect an internet connection."""
connection = None
try:
r = requests.get("https://google.com")
r.raise_for_status()
print("Internet connection detected.")
connection = True
except:
print("Internet connection not detected.")
connection = False
finally:
return connection
Or, a version that raises an exception:
import requests
from requests.exceptions import ConnectionError
def internet():
"""Detect an internet connection."""
try:
r = requests.get("https://google.com")
r.raise_for_status()
print("Internet connection detected.")
except ConnectionError as e:
print("Internet connection not detected.")
raise e
Now Update word-wrap is replace by :
overflow-wrap:break-word;
Compatible old navigator and css 3 it's good alternative !
it's evolution of word-wrap ( since 2012... )
See more information : https://www.w3.org/TR/css-text-3/#overflow-wrap
See compatibility full : http://caniuse.com/#search=overflow-wrap
I had the same problem.
Here is a workaround
android:inputType="textNoSuggestions|textVisiblePassword"
android:maxLength="6"
If none of the above solutions are working, try manually adding "http://" to the beginning of the url.
Chrome can distinguish "[ip-address]:5000" from a search query. But sometimes that works for a while, and then stops connecting, seemingly without me changing anything. My hypothesis is that the browser might sometimes automatically prepend https:// (which it shouldn't, but this fixed it in my case).
Alternatively to Martin's answer, you could also add the INTO part at the end of the query to make the query more readable:
SELECT Id, dateCreated FROM products INTO iId, dCreate
Replace
if (typeof obj === 'undefined') { return undefined;} // return undefined for undefined
if (obj === 'null') { return null;} // null unchanged
with
if (obj === undefined) { return undefined;} // return undefined for undefined
if (obj === null) { return null;} // null unchanged
The new default toArray
method in Collection
interface allows the elements of the collection to be transferred to a newly created array of the desired runtime type. It takes IntFunction<T[]> generator
as argument and can be used as:
String[] array = set.toArray(String[]::new);
There is already a similar method Collection.toArray(T[])
and this addition means we no longer be able to pass null
as argument because in that case reference to the method would be ambiguous. But it is still okay since both methods throw a NPE anyways.
In Java 8 we can use streams API:
String[] array = set.stream().toArray(String[]::new);
We can also make use of the overloaded version of toArray() which takes IntFunction<A[]> generator
as:
String[] array = set.stream().toArray(n -> new String[n]);
The purpose of the generator function here is to take an integer (size of desired array) and produce an array of desired size. I personally prefer the former approach using method reference than the later one using lambda expression.
Couldnt get the TEXT() formula to work
Easiest solution was to copy paste into Notepad and back into Excel with the column set to Text before pasting back
Or you can do the same with a formula like this
=DAY(A2)&"/"&MONTH(A2)&"/"&YEAR(A2)& " "&HOUR(B2)&":"&MINUTE(B2)&":"&SECOND(B2)
Mike's suggestion sounds like the "right way". I came across this thread wanting to specify the user to run vncserver
under on reboot and wanted to keep all my cron jobs in one place.
I was getting the following error for the VNC cron:
vncserver: The USER environment variable is not set. E.g.:
In my case, I was able to use sudo
to specify who to run the task as.
@reboot sudo -u [someone] vncserver ...
When I have org.json.JSONObject
in the classpath, I do:
Map<String, Object> stats = ...;
System.out.println(new JSONObject(stats).toString(2));
(this beautifully indents lists, sets and maps which may be nested)
I too was looking for this for Facebook reasons and none of the answers given so far worked as needed or are too complicated.
@Request.Url.GetLeftPart(UriPartial.Path)
Gets the full protocol, host and path "without" the querystring. Also includes the port if you are using something other than the default 80.
Something like that:
def runProcess(exe):
p = subprocess.Popen(exe, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
while(True):
# returns None while subprocess is running
retcode = p.poll()
line = p.stdout.readline()
yield line
if retcode is not None:
break
Note, that I'm redirecting stderr to stdout, it might not be exactly what you want, but I want error messages also.
This function yields line by line as they come (normally you'd have to wait for subprocess to finish to get the output as a whole).
For your case the usage would be:
for line in runProcess('mysqladmin create test -uroot -pmysqladmin12'.split()):
print line,
This is a simple solution which solved the problem for me:
label
{
/* for firefox */
vertical-align:middle;
/*for internet explorer */
*bottom:3px;
*position:relative;
padding-bottom:7px;
}
Sven has shown how to use the class gaussian_kde
from Scipy, but you will notice that it doesn't look quite like what you generated with R. This is because gaussian_kde
tries to infer the bandwidth automatically. You can play with the bandwidth in a way by changing the function covariance_factor
of the gaussian_kde
class. First, here is what you get without changing that function:
However, if I use the following code:
import matplotlib.pyplot as plt
import numpy as np
from scipy.stats import gaussian_kde
data = [1.5]*7 + [2.5]*2 + [3.5]*8 + [4.5]*3 + [5.5]*1 + [6.5]*8
density = gaussian_kde(data)
xs = np.linspace(0,8,200)
density.covariance_factor = lambda : .25
density._compute_covariance()
plt.plot(xs,density(xs))
plt.show()
I get
which is pretty close to what you are getting from R. What have I done? gaussian_kde
uses a changable function, covariance_factor
to calculate its bandwidth. Before changing the function, the value returned by covariance_factor for this data was about .5. Lowering this lowered the bandwidth. I had to call _compute_covariance
after changing that function so that all of the factors would be calculated correctly. It isn't an exact correspondence with the bw parameter from R, but hopefully it helps you get in the right direction.
javascript:document.getElementsByClassName("video-stream html5-main-video")[0].playbackRate = 0.1;
you can put any number here just don't go to far so you don't overun your computer.
Just in case someone stumbles upon this like I did and doesn't realise, the two variations above are for different use cases.
The following:
.blue-border, .background {
border: 1px solid #00f;
background: #fff;
}
is for when you want to add styles to elements that have either the blue-border or background class, for example:
<div class="blue-border">Hello</div>
<div class="background">World</div>
<div class="blue-border background">!</div>
would all get a blue border and white background applied to them.
However, the accepted answer is different.
.blue-border.background {
border: 1px solid #00f;
background: #fff;
}
This applies the styles to elements that have both classes so in this example only the <div>
with both classes should get the styles applied (in browsers that interpret the CSS properly):
<div class="blue-border">Hello</div>
<div class="background">World</div>
<div class="blue-border background">!</div>
So basically think of it like this, comma separating applies to elements with one class OR another class and dot separating applies to elements with one class AND another class.
The best way to remove illegal character from user input is to replace illegal character using Regex class, create method in code behind or also it validate at client side using RegularExpression control.
public string RemoveSpecialCharacters(string str)
{
return Regex.Replace(str, "[^a-zA-Z0-9_]+", "_", RegexOptions.Compiled);
}
OR
<asp:RegularExpressionValidator ID="regxFolderName"
runat="server"
ErrorMessage="Enter folder name with a-z A-Z0-9_"
ControlToValidate="txtFolderName"
Display="Dynamic"
ValidationExpression="^[a-zA-Z0-9_]*$"
ForeColor="Red">
Why not to extend the existing comperator and overwrite super and nor the result. The implementation the Comperator Interface is not nessesery but it makes it more clear what happens.
In result you get a easy reusable Class File, testable unit step and clear javadoc.
public class NorCoperator extends ExistingComperator implements Comparator<MyClass> {
@Override
public int compare(MyClass a, MyClass b) throws Exception {
return super.compare(a, b)*-1;
}
}
Try This.....
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Timer1.Start()
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Label12.Text = TimeOfDay.ToString("h:mm:ss tt")
End Sub
void 0
mean?void
[MDN] is a prefix keyword that takes one argument and always returns undefined
.
Examples
void 0
void (0)
void "hello"
void (new Date())
//all will return undefined
It seems pretty useless, doesn't it? If it always returns undefined
, what's wrong with just using undefined
itself?
In a perfect world we would be able to safely just use undefined
: it's much simpler and easier to understand than void 0
. But in case you've never noticed before, this isn't a perfect world, especially when it comes to Javascript.
The problem with using undefined
was that undefined
is not a reserved word (it is actually a property of the global object [wtfjs]). That is, undefined
is a permissible variable name, so you could assign a new value to it at your own caprice.
alert(undefined); //alerts "undefined"
var undefined = "new value";
alert(undefined) // alerts "new value"
Note: This is no longer a problem in any environment that supports ECMAScript 5 or newer (i.e. in practice everywhere but IE 8), which defines the undefined
property of the global object as read-only (so it is only possible to shadow the variable in your own local scope). However, this information is still useful for backwards-compatibility purposes.
alert(window.hasOwnProperty('undefined')); // alerts "true"
alert(window.undefined); // alerts "undefined"
alert(undefined === window.undefined); // alerts "true"
var undefined = "new value";
alert(undefined); // alerts "new value"
alert(undefined === window.undefined); // alerts "false"
void
, on the other hand, cannot be overidden. void 0
will always return undefined
. undefined
, on the other hand, can be whatever Mr. Javascript decides he wants it to be.
void 0
, specifically?Why should we use void 0
? What's so special about 0
? Couldn't we just as easily use 1
, or 42
, or 1000000
or "Hello, world!"
?
And the answer is, yes, we could, and it would work just as well. The only benefit of passing in 0
instead of some other argument is that 0
is short and idiomatic.
Although undefined
can generally be trusted in modern JavaScript environments, there is one trivial advantage of void 0
: it's shorter. The difference is not enough to worry about when writing code but it can add up enough over large code bases that most code minifiers replace undefined
with void 0
to reduce the number of bytes sent to the browser.
You try the following ways to run the multiple python scripts:
import os
print "Starting script1"
os.system("python script1.py arg1 arg2 arg3")
print "script1 ended"
print "Starting script2"
os.system("python script2.py arg1 arg2 arg3")
print "script2 ended"
Note: The execution of multiple scripts depends purely underlined operating system, and it won't be concurrent, I was new comer in Python when I answered it.
Update: I found a package: https://pypi.org/project/schedule/ Above package can be used to run multiple scripts and function, please check this and maybe on weekend will provide some example too.
i.e:
import schedule
import time
import script1, script2
def job():
print("I'm working...")
schedule.every(10).minutes.do(job)
schedule.every().hour.do(job)
schedule.every().day.at("10:30").do(job)
schedule.every(5).to(10).days.do(job)
schedule.every().monday.do(job)
schedule.every().wednesday.at("13:15").do(job)
while True:
schedule.run_pending()
time.sleep(1)
Given the C99 standard (namely, the N1256 draft), the rules depend on the function kind: fprintf (printf, sprintf, ...) or scanf.
Here are relevant parts extracted:
Foreword
This second edition cancels and replaces the first edition, ISO/IEC 9899:1990, as amended and corrected by ISO/IEC 9899/COR1:1994, ISO/IEC 9899/AMD1:1995, and ISO/IEC 9899/COR2:1996. Major changes from the previous edition include:
%lf
conversion specifier allowed inprintf
7.19.6.1 The
fprintf
function7 The length modifiers and their meanings are:
l (ell) Specifies that (...) has no effect on a following a, A, e, E, f, F, g, or G conversion specifier.
L Specifies that a following a, A, e, E, f, F, g, or G conversion specifier applies to a long double argument.
The same rules specified for fprintf
apply for printf
, sprintf
and similar functions.
7.19.6.2 The
fscanf
function11 The length modifiers and their meanings are:
l (ell) Specifies that (...) that a following a, A, e, E, f, F, g, or G conversion specifier applies to an argument with type pointer to double;
L Specifies that a following a, A, e, E, f, F, g, or G conversion specifier applies to an argument with type pointer to long double.
12 The conversion specifiers and their meanings are: a,e,f,g Matches an optionally signed floating-point number, (...)
14 The conversion specifiers A, E, F, G, and X are also valid and behave the same as, respectively, a, e, f, g, and x.
The long story short, for fprintf
the following specifiers and corresponding types are specified:
%f
-> double%Lf
-> long double.and for fscanf
it is:
%f
-> float%lf
-> double%Lf
-> long double.as this question is the first result at search engines
There are a problem with the selected -and right by the way- solution, is that if you want to add style that will apply to images like ( borders for example ) .
for example :
img {_x000D_
color:#fff;_x000D_
border: 1px solid black;_x000D_
padding: 5px;_x000D_
background-color: #ccc;_x000D_
}
_x000D_
<img src="http://badsrc.com/blah" alt="BLAH BLAH BLAH" /> <hr />_x000D_
<img src="https://cdn4.iconfinder.com/data/icons/miu-square-flat-social/60/stackoverflow-square-social-media-128.png" alt="BLAH BLAH BLAH" />
_x000D_
as you can see, all of images will apply the same style
there is another approach to easily work around such an issue, using onerror
and injecting some special class to deal with the interrupted images :
.invalidImageSrc {_x000D_
color:#fff;_x000D_
border: 1px solid black;_x000D_
padding: 5px;_x000D_
background-color: #ccc;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>_x000D_
_x000D_
<img onerror="$(this).addClass('invalidImageSrc')" src="http://badsrc.com/blah" alt="BLAH BLAH BLAH" /> <hr />_x000D_
<img onerror="$(this).addClass('invalidImageSrc')" src="https://cdn4.iconfinder.com/data/icons/miu-square-flat-social/60/stackoverflow-square-social-media-128.png" alt="BLAH BLAH BLAH" />
_x000D_
Imagine an 8 digit padding function that transforms:
We can used the padded strings to help us sort '19asd' to appear before '123asd'.
Use the regular expression /\d+/g
to help find all the numbers that need to be padded:
str.replace(/\d+/g, pad)
The following demonstrates sorting using this technique:
var list = [_x000D_
'123asd',_x000D_
'19asd',_x000D_
'12345asd',_x000D_
'asd123',_x000D_
'asd12'_x000D_
];_x000D_
_x000D_
function pad(n) { return ("00000000" + n).substr(-8); }_x000D_
function natural_expand(a) { return a.replace(/\d+/g, pad) };_x000D_
function natural_compare(a, b) {_x000D_
return natural_expand(a).localeCompare(natural_expand(b));_x000D_
}_x000D_
_x000D_
console.log(list.map(natural_expand).sort()); // intermediate values_x000D_
console.log(list.sort(natural_compare)); // result
_x000D_
The intermediate results show what the natural_expand() routine does and gives you an understanding of how the subsequent natural_compare routine will work:
[
"00000019asd",
"00000123asd",
"00012345asd",
"asd00000012",
"asd00000123"
]
Outputs:
[
"19asd",
"123asd",
"12345asd",
"asd12",
"asd123"
]
You can also use setShowSoftInputOnFocus(boolean) directly on API 21+ or through reflection on API 14+:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
editText.setShowSoftInputOnFocus(false);
} else {
try {
final Method method = EditText.class.getMethod(
"setShowSoftInputOnFocus"
, new Class[]{boolean.class});
method.setAccessible(true);
method.invoke(editText, false);
} catch (Exception e) {
// ignore
}
}
To resolve this with RegEx, you need to use the multiline flag (?m):
((Get-Content file.txt -Raw) -replace "(?m)^\s*`r`n",'').trim() | Set-Content file.txt
The defacto standard for learning Grails is the excellent Getting Started with Grails by Jason Rudolph. You can debate whether it is an online tutorial or a book since it can be purchased but is available as a free download. There are more "real" books being published and I recommend Beginning Groovy and Grails.
I ran into this error message on 2 separate occasions, with lazy loading in Angular 7 and the above did not help. For both of the below to work you MUST stop and restart ng serve for it to completely update correctly.
1) First time I had somehow incorrectly imported my AppModule into the lazy loaded feature module. I removed this import from the lazy loaded module and it started working again.
2) Second time I had a separate CoreModule that I was importing into the AppModule AND same lazy loaded module as #1. I removed this import from the lazy loaded module and it started working again.
Basically, check your hierarchy of imports and pay close attention to the order of the imports (if they are imported where they should be). Lazy loaded modules only need their own route component / dependencies. App and parent dependencies will be passed down whether they are imported into AppModule, or imported from another feature module that is NOT-lazy loaded and already imported in a parent module.
I guess the problem is your js runs before the html is loaded.
If you are using jquery, you can use the document ready function to wrap your code:
$(function() {
var Grid = function(width, height) {
// codes...
}
});
Or simply put your js after the <canvas>
.
var obj = {"a": "test1", "b": "test2"};
var getValuesOfObject = Object.values(obj)
for(index = 0; index < getValuesOfObject.length; index++){
return Boolean(getValuesOfObject[index] === "test1")
}
The Object.values() method returned an array (assigned to getValuesOfObject) containing the given object's (obj) own enumerable property values. The array was iterated using the for
loop to retrieve each value (values in the getValuesfromObject) and returns a Boolean() function to find out if the expression ("text1" is a value in the looping array) is true.
Edit the tty configuration in /etc/init/tty*.conf
with a shellscript as a parameter :
(...)
exec /sbin/getty -n -l theInputScript.sh -8 38400 tty1
(...)
This is assuming that we're editing tty1 and the script that reads input is theInputScript.sh.
A word of warning this script is run as root, so when you are inputing stuff to it you have root priviliges. Also append a path to the location of the script.
Important: the script when it finishes, has to invoke the /sbin/login otherwise you wont be able to login in the terminal.
The explicit way to check for a variable being defined would be:
[ -v mystr ]
I found I had to be logged in as a domain user.
It gave me this error when I was logged in as local machine Administrator and trying to add domain service account.
Logged in as domain user (but admin on machine) and it accepted the credentials.
Place this css in your page:
<style>
#client_logos {
display: inline-block;
width:100%;
}
</style>
Replace
<p><img class="alignnone" style="display: inline; margin: 0 10px;" title="heartica_logo" src="https://s3.amazonaws.com/rainleader/assets/heartica_logo.png" alt="" width="150" height="50" /><img class="alignnone" style="display: inline; margin: 0 10px;" title="mouseflow_logo" src="https://s3.amazonaws.com/rainleader/assets/mouseflow_logo.png" alt="" width="150" height="50" /><img class="alignnone" style="display: inline; margin: 0 10px;" title="mouseflow_logo" src="https://s3.amazonaws.com/rainleader/assets/piiholo_logo.png" alt="" width="150" height="50" /></p>
To
<div id="client_logos">
<img style="display: inline; margin: 0 5px;" title="heartica_logo" src="https://s3.amazonaws.com/rainleader/assets/heartica_logo.png" alt="" width="150" height="50" />
<img style="display: inline; margin: 0 5px;" title="mouseflow_logo" src="https://s3.amazonaws.com/rainleader/assets/mouseflow_logo.png" alt="" width="150" height="50" />
<img style="display: inline; margin: 0 5px;" title="piiholo_logo" src="https://s3.amazonaws.com/rainleader/assets/piiholo_logo.png" alt="" width="150" height="50" />
</div>
just tested doing this and it seems to work in firefox & IE
<html>
<head>
<script type="text/javascript">
function alertFilename()
{
var thefile = document.getElementById('thefile');
alert(thefile.value);
}
</script>
</head>
<body>
<form>
<input type="file" id="thefile" onchange="alertFilename()" />
<input type="button" onclick="alertFilename()" value="alert" />
</form>
</body>
</html>
why not use:
function getwhatiwant($s)
{
$delimiter='/';
$x=strstr($s,$delimiter,true);
return ($x?$x:$s);
}
OR:
function getwhatiwant($s)
{
$delimiter='/';
$t=explode($delimiter, $s);
return ($t[1]?$t[0]:$s);
}
Use AssemblyInfo.cs
Create the file in App_Code: and fill out the following or use Google for other attribute/property possibilities.
AssemblyInfo.cs
using System.Reflection;
[assembly: AssemblyDescription("Very useful stuff here.")]
[assembly: AssemblyCompany("companyname")]
[assembly: AssemblyCopyright("Copyright © me 2009")]
[assembly: AssemblyProduct("NeatProduct")]
[assembly: AssemblyVersion("1.1.*")]
AssemblyVersion being the part you are really after.
Then if you are working on a website, in any aspx page, or control, you can add in the <Page> tag, the following:
CompilerOptions="<folderpath>\App_Code\AssemblyInfo.cs"
(replacing folderpath with appropriate variable of course).
I don't believe you need to add compiler options in any manner for other classes; all the ones in the App_Code should receive the version information when they are compiled.
Hope that helps.
I'm posting my solution for the other sleep-deprived souls out there:
If you're using RVM, double-check that you're in the correct folder, using the correct ruby version and gemset. I had an array of terminal tabs open, and one of them was in a different directory. typing "rails console" produced the error because my default rails distro is 2.3.x.
I noticed the error on my part, cd'd to the correct directory, and my .rvmrc file did the rest.
RVM is not like Git. In git, changing branches in one shell changes it everywhere. It's literally rewriting the files in question. RVM, on the other hand, is just setting shell variables, and must be set for each new shell you open.
In case you're not familiar with .rvmrc, you can put a file with that name in any directory, and rvm will pick it up and use the version/gemset specified therein, whenever you change to that directory. Here's a sample .rvmrc file:
rvm use 1.9.2@turtles
This will switch to the latest version of ruby 1.9.2 in your RVM collection, using the gemset "turtles". Now you can open up a hundred tabs in Terminal (as I end up doing) and never worry about the ruby version it's pointing to.
I use this to get the height of an element (returns float):
document.getElementById('someDiv').getBoundingClientRect().height
It also works when you use the virtual DOM. I use it in Vue like this:
this.$refs['some-ref'].getBoundingClientRect().height
For a Vue component:
this.$refs['some-ref'].$el.getBoundingClientRect().height
To test for existence there are two methods.
a. "property" in object
This method checks the prototype chain for existence of the property.
b. object.hasOwnProperty( "property" )
This method does not go up the prototype chain to check existence of the property, it must exist in the object you are calling the method on.
var x; // variable declared in global scope and now exists
"x" in window; // true
window.hasOwnProperty( "x" ); //true
If we were testing using the following expression then it would return false
typeof x !== 'undefined'; // false
Tick 'Full Index Enabled' and then 'Rebuild Index' of the central repository in 'Global Repositories' under Window > Show View > Other > Maven > Maven Repositories
, and it should work.
The rebuilding may take a long time depending on the speed of your internet connection, but eventually it works.
As defined in the link below, you can delete in a straight forward manner
USE AdventureWorks2008R2;
GO
DELETE TOP (20)
FROM Purchasing.PurchaseOrderDetail
WHERE DueDate < '20020701';
GO
http://technet.microsoft.com/en-us/library/ms175486(v=sql.105).aspx
Quick solution, relies on the -webkit-mask-image
property. -webkit-mask-image
sets a mask image for an element.
There are a few gotchas with this method:
:after
psuedo-element (IMG
tags can't have :before
/:after
pseudo elements, grr)attr(…)
CSS function to get the IMG
tag URL, so it's hard-coded into the CSS separately.If you can look past those issues, this might be a possible solution. SVG filters will be even more flexible, and Canvas solutions will be even more flexible and have a wider range of support (SVG doesn't have Android 2.x support).
A realm can be seen as an area (not a particular page, it could be a group of pages) for which the credentials are used; this is also the string that will be shown when the browser pops up the login window, e.g.
Please enter your username and password for
<realm name>
:
When the realm changes, the browser may show another popup window if it doesn't have credentials for that particular realm.
You have to make a change in the asterisk.conf file located at /etc/asterisk
astrundir => /var/run/asterisk
Reboot your system and check
Hope this helps you
String s = "xyz";
for(int i = 0; i < s.length(); i++)
{
char c = s.charAt(i);
}
"...by a class and a div."
I assume when you say "div" you mean "id"? Try this:
$('#test2.test1').prop('checked', true);
No need to muck about with your [attributename=value]
style selectors because id has its own format as does class, and they're easily combined although given that id is supposed to be unique it should be enough on its own unless your meaning is "select that element only if it currently has the specified class".
Or more generally to select an input where you want to specify a multiple attribute selector:
$('input:radio[class=test1][id=test2]').prop('checked', true);
That is, list each attribute with its own square brackets.
Note that unless you have a pretty old version of jQuery you should use .prop()
rather than .attr()
for this purpose.
Let's say you have input data x
and you want to classify the data into labels y
. A generative model learns the joint probability distribution p(x,y)
and a discriminative model learns the conditional probability distribution p(y|x)
- which you should read as "the probability of y
given x
".
Here's a really simple example. Suppose you have the following data in the form (x,y)
:
(1,0), (1,0), (2,0), (2, 1)
p(x,y)
is
y=0 y=1
-----------
x=1 | 1/2 0
x=2 | 1/4 1/4
p(y|x)
is
y=0 y=1
-----------
x=1 | 1 0
x=2 | 1/2 1/2
If you take a few minutes to stare at those two matrices, you will understand the difference between the two probability distributions.
The distribution p(y|x)
is the natural distribution for classifying a given example x
into a class y
, which is why algorithms that model this directly are called discriminative algorithms. Generative algorithms model p(x,y)
, which can be transformed into p(y|x)
by applying Bayes rule and then used for classification. However, the distribution p(x,y)
can also be used for other purposes. For example, you could use p(x,y)
to generate likely (x,y)
pairs.
From the description above, you might be thinking that generative models are more generally useful and therefore better, but it's not as simple as that. This paper is a very popular reference on the subject of discriminative vs. generative classifiers, but it's pretty heavy going. The overall gist is that discriminative models generally outperform generative models in classification tasks.
You can use std::find
for this:
#include <algorithm> // for std::find
#include <iterator> // for std::begin, std::end
int main ()
{
int a[] = {3, 6, 8, 33};
int x = 8;
bool exists = std::find(std::begin(a), std::end(a), x) != std::end(a);
}
std::find
returns an iterator to the first occurrence of x
, or an iterator to one-past the end of the range if x
is not found.
If this is ASP.net-Core then you are mixing web API versions. Have the action return a derived IActionResult
because in your current code the framework is treating HttpResponseMessage
as a model.
[Route("api/[controller]")]
public class DownloadController : Controller {
//GET api/download/12345abc
[HttpGet("{id}"]
public async Task<IActionResult> Download(string id) {
Stream stream = await {{__get_stream_based_on_id_here__}}
if(stream == null)
return NotFound(); // returns a NotFoundResult with Status404NotFound response.
return File(stream, "application/octet-stream"); // returns a FileStreamResult
}
}
This works really well for me:
.image-upload>input {_x000D_
display: none;_x000D_
}
_x000D_
<div class="image-upload">_x000D_
<label for="file-input">_x000D_
<img src="https://icon-library.net/images/upload-photo-icon/upload-photo-icon-21.jpg"/>_x000D_
</label>_x000D_
_x000D_
<input id="file-input" type="file" />_x000D_
</div>
_x000D_
Basically the for attribute of the label makes it so that clicking the label is the same as clicking the specified input.
Also, the display property set to none makes it so that the file input isn't rendered at all, hiding it nice and clean.
Tested in Chrome but according to the web should work on all major browsers. :)
EDIT: Added JSFiddle here: https://jsfiddle.net/c5s42vdz/
If you have homebrew you can also install via brew
$ brew install docker-compose
This is a good way to install on a Mac OS system
Do this:
data = [4, 5, 6]
def print_data():
global data
print(data)
print_data()
Update February 2016:
www.javadecompilers.com lists JAD as being:
the most popular Java decompiler, but primarily of this age only. Written in C++, so very fast.
Outdated, unsupported and does not decompile correctly Java 5 and later
So your mileage may vary with recent jdk (7, 8).
The same site list other tools.
And javadecompiler, as noted by Salvador Valencia in the comments (Sept 2017), offers a SaaS where you upload the .class
file to the cloud and it returns you the decompiled code.
Original answer: Oct. 2008
Java Decompiler (Yet another Fast Java decompiler) has:
It works with compilers from JDK 1.1.8 up to JDK 1.7.0, and others (Jikes, JRockit, etc.).
It features an online live demo version that is actually fully functional! You can just drop a jar file on the page and see the decompiled source code without installing anything.
You can try the border-spacing property. That should do what you want. But you may want to see this answer.
The above error can occur for multiple cases during servlet startup / request. Hope you check the full stack trace of the server log, If you have tomcat, you can also see the exact causes in html preview of the 500 Internal Server Error page.
Weird thing is, if you try to hit the request url a second time, you would get 404 Not Found page.
You can also debug this issue, by placing breakpoints on all the classes constructor initialization block, whose objects are created during servlet startup/request.
In my case, I didn't had javaassist jar loaded for the Weld CDI injection to work. And it shown NoClassDefFound Error.
Same as AMIB answer, for soft delete error "Unknown column 'table_alias.deleted_at'",
just add ->withTrashed()
then handle it yourself like ->whereRaw('items_alias.deleted_at IS NULL')
If you aim to have the "circle" maintain a visual aspect ratio of 1 no matter what the data coordinates are, you could use the scatter() method. http://matplotlib.org/1.3.1/api/pyplot_api.html#matplotlib.pyplot.scatter
import matplotlib.pyplot as plt
x = [1, 2, 3, 4, 5]
y = [10, 20, 30, 40, 50]
r = [100, 80, 60, 40, 20] # in points, not data units
fig, ax = plt.subplots(1, 1)
ax.scatter(x, y, s=r)
fig.show()
In bash version 3 you can use the '=~' operator:
if [[ "$date" =~ ^[0-9]{8}$ ]]; then
echo "Valid date"
else
echo "Invalid date"
fi
Reference: http://tldp.org/LDP/abs/html/bashver3.html#REGEXMATCHREF
NOTE: The quoting in the matching operator within the double brackets, [[ ]], is no longer necessary as of Bash version 3.2
Your example is perfect: the field is private and it has a getter. This is the normal way to access a field. If you need a direct access to an object field, use reflection. Using reflection to get a field's value is a hack and should be used in extreme cases such as using a library whose code you cannot change.
Fileformat.info is a pretty good reference for this stuff. In your case, it's already in hex, so the hex value is f066
. So you'd do:
content: "\f066";
Try below:
try:
raise ValueError("Original message. ")
except Exception as err:
message = 'My custom error message. '
# Change the order below to "(message + str(err),)" if custom message is needed first.
err.args = (str(err) + message,)
raise
Output:
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
1 try:
----> 2 raise ValueError("Original message")
3 except Exception as err:
4 message = 'My custom error message.'
5 err.args = (str(err) + ". " + message,)
ValueError: Original message. My custom error message.
Try this:
public class MyVmBase : INotifyPropertyChanged
{
private ICommand _clickCommand;
public ICommand ClickCommand
{
get
{
return _clickCommand ?? (_clickCommand = new CommandHandler( MyAction));
}
}
public void MyAction(object message)
{
if(message == null)
{
Notify($"Method {message} not defined");
return;
}
switch (message.ToString())
{
case "btnAdd":
{
btnAdd_Click();
break;
}
case "BtnEdit_Click":
{
BtnEdit_Click();
break;
}
default:
throw new Exception($"Method {message} not defined");
break;
}
}
}
public class CommandHandler : ICommand
{
private Action<object> _action;
private Func<object, bool> _canExecute;
/// <summary>
/// Creates instance of the command handler
/// </summary>
/// <param name="action">Action to be executed by the command</param>
/// <param name="canExecute">A bolean property to containing current permissions to execute the command</param>
public CommandHandler(Action<object> action, Func<object, bool> canExecute)
{
if (action == null) throw new ArgumentNullException(nameof(action));
_action = action;
_canExecute = canExecute ?? (x => true);
}
public CommandHandler(Action<object> action) : this(action, null)
{
}
/// <summary>
/// Wires CanExecuteChanged event
/// </summary>
public event EventHandler CanExecuteChanged
{
add { CommandManager.RequerySuggested += value; }
remove { CommandManager.RequerySuggested -= value; }
}
/// <summary>
/// Forcess checking if execute is allowed
/// </summary>
/// <param name="parameter"></param>
/// <returns></returns>
public bool CanExecute(object parameter)
{
return _canExecute(parameter);
}
public void Execute(object parameter)
{
_action(parameter);
}
public void Refresh()
{
CommandManager.InvalidateRequerySuggested();
}
}
And in xaml:
<Button
Command="{Binding ClickCommand}"
CommandParameter="BtnEdit_Click"/>
In the CSS write:
.exampleclass {
background:#000000;
opacity: 10; /* you can always adjust this */
}
You should add following lines while creating a project. It will always ignore .DS_Store
to be pushed to the repository.
*.DS_Store
this will ignore .DS_Store while code commit.
git rm --cached .DS_Store
this is to remove .DS_Store files from your repository, in case you need it, you can uncomment it.
## ignore .DS_Store file.
# git rm --cached .DS_Store
*.DS_Store
You can also listen for query events using this:
DB::listen(function($sql, $bindings, $time)
{
var_dump($sql);
});
See the information from the docs here under Listening For Query Events
First check out to master:
git checkout master
Do all changes, hotfix and commits and push your master.
Go back to your branch, 'aq', and merge master in it:
git checkout aq
git merge master
Your branch will be up-to-date with master. A good and basic example of merge is 3.2 Git Branching - Basic Branching and Merging.
If you broke the tree but didn't commit the code, you can use git reset
, and if you just want to restore one file, you can use git checkout
.
If you broke the tree and committed the code, you can use git revert HEAD
.
http://book.git-scm.com/4_undoing_in_git_-_reset,_checkout_and_revert.html
If you like getting random Command Timeout errors in SQLServer then leave off the semi-colon at the end of your CommandText strings.
I don't know if this is documented anywhere or if it is a bug, but it does happen and I have learnt this from bitter experience.
I have verifiable and reproducible examples using SQLServer 2008.
aka -> In practice, always include the terminator even if you're just sending one statement to the database.
Given your edit i assume you have the class name as a string and want to instantiate the class? Just use a dictionary as a dispatcher.
class Foo(object):
pass
class Bar(object):
pass
dispatch_dict = {"Foo": Foo, "Bar": Bar}
dispatch_dict["Foo"]() # returns an instance of Foo
json.dumps()
is much more than just making a string out of a Python object, it would always produce a valid JSON string (assuming everything inside the object is serializable) following the Type Conversion Table.
For instance, if one of the values is None
, the str()
would produce an invalid JSON which cannot be loaded:
>>> data = {'jsonKey': None}
>>> str(data)
"{'jsonKey': None}"
>>> json.loads(str(data))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/__init__.py", line 338, in loads
return _default_decoder.decode(s)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.py", line 366, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.py", line 382, in raw_decode
obj, end = self.scan_once(s, idx)
ValueError: Expecting property name: line 1 column 2 (char 1)
But the dumps()
would convert None
into null
making a valid JSON string that can be loaded:
>>> import json
>>> data = {'jsonKey': None}
>>> json.dumps(data)
'{"jsonKey": null}'
>>> json.loads(json.dumps(data))
{u'jsonKey': None}
This works for rounding to N digits (if you just want to truncate to N digits remove the Math.round call and use the Math.trunc one):
function roundN(value, digits) {
var tenToN = 10 ** digits;
return /*Math.trunc*/(Math.round(value * tenToN)) / tenToN;
}
Had to resort to such logic at Java in the past when I was authoring data manipulation E-Slate components. That is since I had found out that adding 0.1 many times to 0 you'd end up with some unexpectedly long decimal part (this is due to floating point arithmetics).
A user comment at Format number to always show 2 decimal places calls this technique scaling.
Some mention there are cases that don't round as expected and at http://www.jacklmoore.com/notes/rounding-in-javascript/ this is suggested instead:
function round(value, decimals) {
return Number(Math.round(value+'e'+decimals)+'e-'+decimals);
}
It worked for by following process:
Add Reference:
system.net
system.web
also, include the namespace
using system.net
using system.web