Somehow, the Build checkbox in the Configuration Manager had been unchecked for my executable, so it was still running with the old Any CPU build. After I fixed that, Visual Studio complained that it couldn't debug the assembly, but that was fixed with a restart.
$> printf "%x%x\n" "'A" "'a"
4161
The ParallelRegression package provides a setList( ) ordered set class that is more method-complete than the options based on the ActiveState recipe. It supports all methods available for lists and most if not all methods available for sets.
I'm not sure about your first code sample where you use WebClient.UploadValues, it's not really enough to go on, could you paste more of your surrounding code? Regarding your WebRequest code, there are two things at play here:
You're only requesting the headers of the response**, you never read the body of the response by opening and reading (to its end) the ResponseStream. Because of this, the WebRequest client helpfully leaves the connection open, expecting you to request the body at any moment. Until you either read the response body to completion (which will automatically close the stream for you), clean up and close the stream (or the WebRequest instance) or wait for the GC to do its thing, your connection will remain open.
You have a default maximum amount of active connections to the same host of 2. This means you use up your first two connections and then never dispose of them so your client isn't given the chance to complete the next request before it reaches its timeout (which is milliseconds, btw, so you've set it to 0.2 seconds - the default should be fine).
If you don't want the body of the response (or you've just uploaded or POSTed something and aren't expecting a response), simply close the stream, or the client, which will close the stream for you.
The easiest way to fix this is to make sure you use using blocks on disposable objects:
for (int i = 0; i < ops1; i++)
{
Uri myUri = new Uri(site);
WebRequest myWebRequest = WebRequest.Create(myUri);
//myWebRequest.Timeout = 200;
using (WebResponse myWebResponse = myWebRequest.GetResponse())
{
// Do what you want with myWebResponse.Headers.
} // Your response will be disposed of here
}
Another solution is to allow 200 concurrent connections to the same host. However, unless you're planning to multi-thread this operation so you'd need multiple, concurrent connections, this won't really help you:
ServicePointManager.DefaultConnectionLimit = 200;
When you're getting timeouts within code, the best thing to do is try to recreate that timeout outside of your code. If you can't, the problem probably lies with your code. I usually use cURL for that, or just a web browser if it's a simple GET request.
** In reality, you're actually requesting the first chunk of data from the response, which contains the HTTP headers, and also the start of the body. This is why it's possible to read HTTP header info (such as Content-Encoding, Set-Cookie etc) before reading from the output stream. As you read the stream, further data is retrieved from the server. WebRequest's connection to the server is kept open until you reach the end of this stream (effectively closing it as it's not seekable), manually close it yourself or it is disposed of. There's more about this here.
For me the C:\Program Files (x86)\Notepad++\plugins
does not work.
I have to put plugins into the following directory: C:\Users\<username>\AppData\Local\Notepad++\plugins
UPDATE
There is a feature from NPP-v7.6.4 to open plugin folder:
Plugins -> Open Plugins Folder...
Please be warned that most of the answers above are INCORRECT.
The URLEncoder
class, despite is name, is NOT what needs to be here. It's unfortunate that Sun named this class so annoyingly. URLEncoder
is meant for passing data as parameters, not for encoding the URL itself.
In other words, "http://search.barnesandnoble.com/booksearch/first book.pdf"
is the URL. Parameters would be, for example, "http://search.barnesandnoble.com/booksearch/first book.pdf?parameter1=this¶m2=that"
. The parameters are what you would use URLEncoder
for.
The following two examples highlights the differences between the two.
The following produces the wrong parameters, according to the HTTP standard. Note the ampersand (&) and plus (+) are encoded incorrectly.
uri = new URI("http", null, "www.google.com", 80,
"/help/me/book name+me/", "MY CRZY QUERY! +&+ :)", null);
// URI: http://www.google.com:80/help/me/book%20name+me/?MY%20CRZY%20QUERY!%20+&+%20:)
The following will produce the correct parameters, with the query properly encoded. Note the spaces, ampersands, and plus marks.
uri = new URI("http", null, "www.google.com", 80, "/help/me/book name+me/", URLEncoder.encode("MY CRZY QUERY! +&+ :)", "UTF-8"), null);
// URI: http://www.google.com:80/help/me/book%20name+me/?MY+CRZY+QUERY%2521+%252B%2526%252B+%253A%2529
There is such possibility even if they are not Parent - Child relationship - and that's Flux. There is pretty good (for me personally) implementation for that called Alt.JS (with Alt-Container).
For example you can have Sidebar that is dependent on what is set in component Details. Component Sidebar is connected with SidebarActions and SidebarStore, while Details is DetailsActions and DetailsStore.
You could use then AltContainer like that
<AltContainer stores={{
SidebarStore: SidebarStore
}}>
<Sidebar/>
</AltContainer>
{this.props.content}
Which would keep stores (well I could use "store" instead of "stores" prop). Now, {this.props.content} CAN BE Details depending on the route. Lets say that /Details redirect us to that view. Details would have for example a checkbox that would change Sidebar element from X to Y if it would be checked.
Technically there is no relationship between them and it would be hard to do without flux. BUT WITH THAT it is rather easy.
Now let's get to DetailsActions. We will create there
class SiteActions {
constructor() {
this.generateActions(
'setSiteComponentStore'
);
}
setSiteComponent(value) {
this.dispatch({value: value});
}
}
and DetailsStore
class SiteStore {
constructor() {
this.siteComponents = {
Prop: true
};
this.bindListeners({
setSiteComponent: SidebarActions.COMPONENT_STATUS_CHANGED
})
}
setSiteComponent(data) {
this.siteComponents.Prop = data.value;
}
}
And now, this is the place where magic begin.
As You can see there is bindListener to SidebarActions.ComponentStatusChanged which will be used IF setSiteComponent will be used.
now in SidebarActions
componentStatusChanged(value){
this.dispatch({value: value});
}
We have such thing. It will dispatch that object on call. And it will be called if setSiteComponent in store will be used (that you can use in component for example during onChange on Button ot whatever)
Now in SidebarStore we will have
constructor() {
this.structures = [];
this.bindListeners({
componentStatusChanged: SidebarActions.COMPONENT_STATUS_CHANGED
})
}
componentStatusChanged(data) {
this.waitFor(DetailsStore);
_.findWhere(this.structures[0].elem, {title: 'Example'}).enabled = data.value;
}
Now here you can see, that it will wait for DetailsStore. What does it mean? more or less it means that this method need to wait for DetailsStoreto update before it can update itself.
tl;dr One Store is listening on methods in a store, and will trigger an action from component action, which will update its own store.
I hope it can help you somehow.
rows have an _asdict()
function which gives a dict
In [8]: r1 = db.session.query(Topic.name).first()
In [9]: r1
Out[9]: (u'blah')
In [10]: r1.name
Out[10]: u'blah'
In [11]: r1._asdict()
Out[11]: {'name': u'blah'}
Another solution is to use an Oracle Collection as a Hashmap:
declare
-- create a type for your "Array" - it can be of any kind, record might be useful
type hash_map is table of varchar2(1000) index by varchar2(30);
my_hmap hash_map ;
-- i will be your iterator: it must be of the index's type
i varchar2(30);
begin
my_hmap('a') := 'apple';
my_hmap('b') := 'box';
my_hmap('c') := 'crow';
-- then how you use it:
dbms_output.put_line (my_hmap('c')) ;
-- or to loop on every element - it's a "collection"
i := my_hmap.FIRST;
while (i is not null) loop
dbms_output.put_line(my_hmap(i));
i := my_hmap.NEXT(i);
end loop;
end;
Most people use camelCase
in JS. If you want to open-source anything, I suggest you to use this one :-)
You can create a 'comment' table, with an id as primary key, then you add a text field to capture the text inserted by the user and you need another field to link the comment table to the article table (foreign key). Plus you need a field to store the user that has entered a comment, this field can be the user's email. Then you capture via GET or POST the user's email and comment and you insert everything in the DB:
"INSERT INTO comment (comment, email, approved) VALUES ('$comment', '$email', '$approved')"
This is a first hint. Of course adding a comment feature it takes a little bit. Then you should think about a form to let the admin to approve the comments and how to publish the comments in the end of articles.
This script does the trick! Just paste it into the top of your bat file. If you want to review the output of your script, add a "pause" command at the bottom of your batch file.
This script is now slightly edited to support command line args.
@echo off
:: BatchGotAdmin
::-------------------------------------
REM --> Check for permissions
>nul 2>&1 "%SYSTEMROOT%\system32\cacls.exe" "%SYSTEMROOT%\system32\config\system"
REM --> If error flag set, we do not have admin.
if '%errorlevel%' NEQ '0' (
echo Requesting administrative privileges...
goto UACPrompt
) else ( goto gotAdmin )
:UACPrompt
echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\getadmin.vbs"
set params = %*:"="
echo UAC.ShellExecute "cmd.exe", "/c %~s0 %params%", "", "runas", 1 >> "%temp%\getadmin.vbs"
"%temp%\getadmin.vbs"
del "%temp%\getadmin.vbs"
exit /B
:gotAdmin
pushd "%CD%"
CD /D "%~dp0"
::--------------------------------------
::ENTER YOUR CODE BELOW:
These are the rules of the C++ language:
12
) is a "rvalue"int &ri = 12;
is ill-formedYou have to understand that these are C++ rules. They just are.
It is easy to invent a different language, say C++', with slightly different rules. In C++', it would be permitted to create a non-const reference with a rvalue. There is nothing inconsistent or impossible here.
But it would allow some risky code where the programmer might not get what he intended, and C++ designers rightly decided to avoid that risk.
Do .libPaths()
, close every R runing, check in the first directory, remove the zoo
package restart R and install
zoo
again. Of course you need to have sufficient rights.
Use the row number to differentiate between duplicate records. Keep the first row number for an EmpID/EmpSSN and delete the rest:
DELETE FROM Employee a
WHERE ROW_NUMBER() <> ( SELECT MIN( ROW_NUMBER() )
FROM Employee b
WHERE a.EmpID = b.EmpID
AND a.EmpSSN = b.EmpSSN )
Just call each section of the accordion as its own accordion. active: n will be 0 for the first one( so it will display) and 1, 2, 3, 4, etc for the rest. Since each one is it's own accordion, they will all have only 1 section, and the rest will be collapsed to start.
$('.accordian').each(function(n, el) {
$(el).accordion({
heightStyle: 'content',
collapsible: true,
active: n
});
});
You 100% can do this on the server side...
Protected Sub Button3_Click(sender As Object, e As System.EventArgs)
MesgBox("Test")
End Sub
Private Sub MesgBox(ByVal sMessage As String)
Dim msg As String
msg = "<script language='javascript'>"
msg += "alert('" & sMessage & "');"
msg += "</script>"
Response.Write(msg)
End Sub
here is actually a whole slew of ways to go about this http://www.sislands.com/coin70/week1/dialogbox.htm
Yes, and no. There are min and max attributes in HTML 5, but
The max attribute will not work for dates and time in Internet Explorer 10+ or Firefox, since IE 10+ and Firefox does not support these input types.
EDIT: Firefox now does support it
So if you are confused by the documentation of that attributes, yet it doesn't work, that's why.
See the W3 page for the versions.
I find it easiest to use Javascript, s the other answers say, since you can just use a pre-made module. Also, many Javascript date picker libraries have a min/max setting and have that nice calendar look.
/usr/local/ssl/openssl.cnf
This is a local installation. You downloaded and built OpenSSL taking the default prefix
, of you configured with ./config --prefix=/usr/local/ssl
or ./config --openssldir=/usr/local/ssl
.
You will use this if you use the OpenSSL in /usr/local/ssl/bin
. That is, /usr/local/ssl/openssl.cnf
will be used when you issue:
/usr/local/ssl/bin/openssl s_client -connect localhost:443 -tls1 -servername localhost
/usr/lib/ssl/openssl.cnf
This is where Ubuntu places openssl.cnf
for the OpenSSL they provide.
You will use this if you use the OpenSSL in /usr/bin
. That is, /usr/lib/ssl/openssl.cnf
will be used when you issue:
openssl s_client -connect localhost:443 -tls1 -servername localhost
/etc/ssl/openssl.cnf
I don't know when this is used. The stuff in /etc/ssl
is usually certificates and private keys, and it sometimes contains a copy of openssl.cnf
. But I've never seen it used for anything.
Which is the main/correct one that I should use to make changes?
From the sounds of it, you should probably add the engine to /usr/lib/ssl/openssl.cnf
. That ensures most "off the shelf" gear will use the new engine.
After you do that, add it to /usr/local/ssl/openssl.cnf
also because copy/paste is easy.
Here's how to see which openssl.cnf
directory is associated with a OpenSSL installation. The library and programs look for openssl.cnf
in OPENSSLDIR
. OPENSSLDIR
is a configure option, and its set with --openssldir
.
I'm on a MacBook with 3 different OpenSSL's (Apple's, MacPort's and the one I build):
# Apple
$ /usr/bin/openssl version -a | grep OPENSSLDIR
OPENSSLDIR: "/System/Library/OpenSSL"
# MacPorts
$ /opt/local/bin/openssl version -a | grep OPENSSLDIR
OPENSSLDIR: "/opt/local/etc/openssl"
# My build of OpenSSL
$ openssl version -a | grep OPENSSLDIR
OPENSSLDIR: "/usr/local/ssl/darwin"
I have an Ubuntu system and I have installed openssl.
Just bike shedding, but be careful of Ubuntu's version of OpenSSL. It disables TLSv1.1 and TLSv1.2, so you will only have clients capable of older cipher suites; and you will not be able to use newer ciphers like AES/CTR (to replace RC4) and elliptic curve gear (like ECDHE_ECDSA_*
and ECDHE_RSA_*
). See Ubuntu 12.04 LTS: OpenSSL downlevel version is 1.0.0, and does not support TLS 1.2 in Launchpad.
EDIT: Ubuntu enabled TLS 1.1 and TLS 1.2 recently. See Comment 17 on the bug report.
In my case the error happened because the new line after the return
statement.
Error : Expected an assignment or function call and instead saw an expression
return
(
<ul>
{
props.numbers.map(number => <li key={number.toString()}>number</li>)
}
</ul>
);
Working OK. No Error
return (
<ul>
{
props.numbers.map(number => <li key={number.toString()}>number</li>)
}
</ul>
);
unfortunately, this module needs to be inside the package, and it also needs to be runnable as a script, sometimes. Any idea how I could achieve that?
It's quite common to have a layout like this...
main.py
mypackage/
__init__.py
mymodule.py
myothermodule.py
...with a mymodule.py
like this...
#!/usr/bin/env python3
# Exported function
def as_int(a):
return int(a)
# Test function for module
def _test():
assert as_int('1') == 1
if __name__ == '__main__':
_test()
...a myothermodule.py
like this...
#!/usr/bin/env python3
from .mymodule import as_int
# Exported function
def add(a, b):
return as_int(a) + as_int(b)
# Test function for module
def _test():
assert add('1', '1') == 2
if __name__ == '__main__':
_test()
...and a main.py
like this...
#!/usr/bin/env python3
from mypackage.myothermodule import add
def main():
print(add('1', '1'))
if __name__ == '__main__':
main()
...which works fine when you run main.py
or mypackage/mymodule.py
, but fails with mypackage/myothermodule.py
, due to the relative import...
from .mymodule import as_int
The way you're supposed to run it is...
python3 -m mypackage.myothermodule
...but it's somewhat verbose, and doesn't mix well with a shebang line like #!/usr/bin/env python3
.
The simplest fix for this case, assuming the name mymodule
is globally unique, would be to avoid using relative imports, and just use...
from mymodule import as_int
...although, if it's not unique, or your package structure is more complex, you'll need to include the directory containing your package directory in PYTHONPATH
, and do it like this...
from mypackage.mymodule import as_int
...or if you want it to work "out of the box", you can frob the PYTHONPATH
in code first with this...
import sys
import os
PACKAGE_PARENT = '..'
SCRIPT_DIR = os.path.dirname(os.path.realpath(os.path.join(os.getcwd(), os.path.expanduser(__file__))))
sys.path.append(os.path.normpath(os.path.join(SCRIPT_DIR, PACKAGE_PARENT)))
from mypackage.mymodule import as_int
It's kind of a pain, but there's a clue as to why in an email written by a certain Guido van Rossum...
I'm -1 on this and on any other proposed twiddlings of the
__main__
machinery. The only use case seems to be running scripts that happen to be living inside a module's directory, which I've always seen as an antipattern. To make me change my mind you'd have to convince me that it isn't.
Whether running scripts inside a package is an antipattern or not is subjective, but personally I find it really useful in a package I have which contains some custom wxPython widgets, so I can run the script for any of the source files to display a wx.Frame
containing only that widget for testing purposes.
All settings listed here are correct, but here are the most optimal and sufficient solution:
[mysqld]
init_connect='SET collation_connection = utf8_unicode_ci'
character-set-server = utf8
collation-server = utf8_unicode_ci
[client]
default-character-set = utf8
Add these to /etc/mysql/my.cnf
.
Please note, I choose utf8_unicode_ci type of collation due to the performance issue.
The result is:
mysql> SHOW VARIABLES LIKE 'character%';
+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | utf8 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | utf8 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
mysql> SHOW VARIABLES LIKE 'collation%';
+----------------------+-----------------+
| Variable_name | Value |
+----------------------+-----------------+
| collation_connection | utf8_unicode_ci |
| collation_database | utf8_unicode_ci |
| collation_server | utf8_unicode_ci |
+----------------------+-----------------+
And this is when you connect as non-SUPER user!
For example, the difference between connection as SUPER and non-SUPER user (of course in case of utf8_unicode_ci collation):
user with SUPER priv.:
mysql> SHOW VARIABLES LIKE 'collation%';
+----------------------+-----------------+
| Variable_name | Value |
+----------------------+-----------------+
| collation_connection | utf8_general_ci | <---
| collation_database | utf8_unicode_ci |
| collation_server | utf8_unicode_ci |
+----------------------+-----------------+
user with non-SUPER priv.:
mysql> SHOW VARIABLES LIKE 'collation%';
+----------------------+-----------------+
| Variable_name | Value |
+----------------------+-----------------+
| collation_connection | utf8_unicode_ci |
| collation_database | utf8_unicode_ci |
| collation_server | utf8_unicode_ci |
+----------------------+-----------------+
I wrote a comprehensive article (rus) explaining in details why you should use one or the other option. All types of Character Sets and Collations are considered: for server, for database, for connection, for table and even for column.
I hope this and the article will help to clarify unclear moments.
import MySQLdb
class Database:
host = 'localhost'
user = 'root'
password = '123'
db = 'test'
def __init__(self):
self.connection = MySQLdb.connect(self.host, self.user, self.password, self.db)
self.cursor = self.connection.cursor()
def insert(self, query):
try:
self.cursor.execute(query)
self.connection.commit()
except:
self.connection.rollback()
def query(self, query):
cursor = self.connection.cursor( MySQLdb.cursors.DictCursor )
cursor.execute(query)
return cursor.fetchall()
def __del__(self):
self.connection.close()
if __name__ == "__main__":
db = Database()
#CleanUp Operation
del_query = "DELETE FROM basic_python_database"
db.insert(del_query)
# Data Insert into the table
query = """
INSERT INTO basic_python_database
(`name`, `age`)
VALUES
('Mike', 21),
('Michael', 21),
('Imran', 21)
"""
# db.query(query)
db.insert(query)
# Data retrieved from the table
select_query = """
SELECT * FROM basic_python_database
WHERE age = 21
"""
people = db.query(select_query)
for person in people:
print "Found %s " % person['name']
$('.class1, .class2').on('click', some_function);
Or:
$('.class1').add('.class2').on('click', some_function);
This also works with existing objects:
const $class1 = $('.class1');
const $class2 = $('.class2');
$class1.add($class2).on('click', some_function);
Without using a formula you can do this with 'Text to columns'.
The 'side-effect' is that Excel has removed all trailing spaces in the original column.
If you want something super simple:
def chunks(l, n):
n = max(1, n)
return (l[i:i+n] for i in range(0, len(l), n))
Use xrange()
instead of range()
in the case of Python 2.x
In woocommerce,
Get regular price :
$price = get_post_meta( get_the_ID(), '_regular_price', true);
// $price will return regular price
Get sale price:
$sale = get_post_meta( get_the_ID(), '_sale_price', true);
// $sale will return sale price
I had the same problem. But in my case, the Debuggable
attribute was hard coded in the AssemblyInfo.cs
file of my project and therefor not (over-)written by compilation. It worked after removing the line specifying the Debuggable
attribute.
You need additional plugin for this.
take a look at this plugin
As of June 15, 2015 you may use Set()
to create a unique array:
var uniqueArray = [...new Set(array)]
For your Example:
var data = ["X_row7", "X_row4", "X_row6", "X_row10", "X_row8", "X_row9", "X_row11", "X_row7", "X_row4", "X_row6", "X_row10", "X_row8", "X_row9", "X_row11", "X_row7", "X_row4", "X_row6", "X_row10", "X_row8", "X_row9", "X_row11", "X_row7", "X_row4", "X_row6", "X_row10", "X_row8", "X_row9", "X_row11", "X_row7", "X_row4", "X_row6", "X_row10", "X_row8", "X_row9", "X_row11", "X_row7", "X_row4", "X_row6", "X_row10", "X_row8", "X_row9", "X_row11"]
var newArray = [...new Set(data)]
console.log(newArray)
>> ["X_row7", "X_row4", "X_row6", "X_row10", "X_row8", "X_row9", "X_row11"]
If it's jQuery...
$("#myText").val('');
or
document.getElementById('myText').value = '';
Reference: Text Area Object
onchange
will work only if the value of the textbox changed compared to the value it had before, so for the first time it won't work because the state didn't change.
So it is better to use onblur
event or on submitting the form.
function checkTextField(field) {_x000D_
document.getElementById("error").innerText =_x000D_
(field.value === "") ? "Field is empty." : "Field is filled.";_x000D_
}
_x000D_
<input type="text" onblur="checkTextField(this);" />_x000D_
<p id="error"></p>
_x000D_
For Micromax devices :
You need to download third party PC-Suite like Moborobo or Mobogenie because Micormax don't have official PC-Suite & after installaion (without restarting) your mobile will be detected. :)
I think the current right way to do this is by pip
like Pramod comments
pip install beautifulsoup4
because of last changes in Python, see discussion here. This was not so in the past.
While list(map(int, str(x)))
is the Pythonic approach, you can formulate logic to derive digits without any type conversion:
from math import log10
def digitize(x):
n = int(log10(x))
for i in range(n, -1, -1):
factor = 10**i
k = x // factor
yield k
x -= k * factor
res = list(digitize(5243))
[5, 2, 4, 3]
One benefit of a generator is you can feed seamlessly to set
, tuple
, next
, etc, without any additional logic.
You can create your own function
function emailValidate(email){
var check = "" + email;
if((check.search('@')>=0)&&(check.search(/\./)>=0))
if(check.search('@')<check.split('@')[1].search(/\./)+check.search('@')) return true;
else return false;
else return false;
}
alert(emailValidate('[email protected]'));
If you want to specifically animate the background color of an element, I believe you need to include jQueryUI framework. Then you can do:
$('#myElement').animate({backgroundColor: '#FF0000'}, 'slow');
jQueryUI has some built-in effects that may be useful to you as well.
I think the advantages are:
Web development in a dynamic language (JavaScript) on a VM that is incredibly fast (V8). It is much faster than Ruby, Python, or Perl.
Ability to handle thousands of concurrent connections with minimal overhead on a single process.
JavaScript is perfect for event loops with first class function objects and closures. People already know how to use it this way having used it in the browser to respond to user initiated events.
A lot of people already know JavaScript, even people who do not claim to be programmers. It is arguably the most popular programming language.
Using JavaScript on a web server as well as the browser reduces the impedance mismatch between the two programming environments which can communicate data structures via JSON that work the same on both sides of the equation. Duplicate form validation code can be shared between server and client, etc.
I know you asked for GET and POST but I will provide CRUD since others may need this just in case: (this was tested in Python 3.7)
#!/usr/bin/env python3
import http.client
import json
print("\n GET example")
conn = http.client.HTTPSConnection("httpbin.org")
conn.request("GET", "/get")
response = conn.getresponse()
data = response.read().decode('utf-8')
print(response.status, response.reason)
print(data)
print("\n POST example")
conn = http.client.HTTPSConnection('httpbin.org')
headers = {'Content-type': 'application/json'}
post_body = {'text': 'testing post'}
json_data = json.dumps(post_body)
conn.request('POST', '/post', json_data, headers)
response = conn.getresponse()
print(response.read().decode())
print(response.status, response.reason)
print("\n PUT example ")
conn = http.client.HTTPSConnection('httpbin.org')
headers = {'Content-type': 'application/json'}
post_body ={'text': 'testing put'}
json_data = json.dumps(post_body)
conn.request('PUT', '/put', json_data, headers)
response = conn.getresponse()
print(response.read().decode(), response.reason)
print(response.status, response.reason)
print("\n delete example")
conn = http.client.HTTPSConnection('httpbin.org')
headers = {'Content-type': 'application/json'}
post_body ={'text': 'testing delete'}
json_data = json.dumps(post_body)
conn.request('DELETE', '/delete', json_data, headers)
response = conn.getresponse()
print(response.read().decode(), response.reason)
print(response.status, response.reason)
mbaird's answer works fine. Just be aware that there seems to be a bug in Android (2.1 at least), that if you set any individual corner's radius to 0, it forces all the corners to 0 (at least that's the case with "dp" units; I didn't try it with any other units).
I needed a shape where the top corners were rounded and the bottom corners were square. I got achieved this by setting the corners I wanted to be square to a value slightly larger than 0: 0.1dp. This still renders as square corners, but it doesn't force the other corners to be 0 radius.
I have recently encountered this problem. Here are the steps to resolve
<servers>_x000D_
<server>_x000D_
<id>serverId</id>_x000D_
<username>username</username>_x000D_
<password>password</password>_x000D_
</server>_x000D_
</servers>
_x000D_
<repositories>_x000D_
<repository>_x000D_
<id>serverId</id> _x000D_
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>_x000D_
</repository>_x000D_
</repositories>
_x000D_
<profiles>_x000D_
<profile>_x000D_
<repositories>_x000D_
<repository>_x000D_
<id>serverId</id>_x000D_
<name>aliyun</name>_x000D_
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>_x000D_
</repository>_x000D_
</repositories>_x000D_
</profile>_x000D_
</profiles>
_x000D_
Note that you should ensure that the id of the server tag should be the same as the id of the repository tag.
In my case, everything was set up correctly, but my Docker
infrastructure needed more RAM. I'm using Docker for Mac, where default RAM was around 1 GB, and as MySQL uses around 1.5Gb of RAM ( and probably was crashing ??? ), changing the Docker RAM utilization level to 3-4 Gb solved the issue.
Use CodeSource#getLocation()
. This works fine in JAR files as well. You can obtain CodeSource
by ProtectionDomain#getCodeSource()
and the ProtectionDomain
in turn can be obtained by Class#getProtectionDomain()
.
public class Test {
public static void main(String... args) throws Exception {
URL location = Test.class.getProtectionDomain().getCodeSource().getLocation();
System.out.println(location.getFile());
}
}
Update as per the comment of the OP:
I want to dump a bunch of CSV files in a folder, have the program recognize all the files, then load the data and manipulate them. I really just want to know how to navigate to that folder.
That would require hardcoding/knowing their relative path in your program. Rather consider adding its path to the classpath so that you can use ClassLoader#getResource()
File classpathRoot = new File(classLoader.getResource("").getPath());
File[] csvFiles = classpathRoot.listFiles(new FilenameFilter() {
@Override public boolean accept(File dir, String name) {
return name.endsWith(".csv");
}
});
Or to pass its path as main()
argument.
I solved my problem with code below.
display: table-caption;
It's as simple as:
s.split("");
The delimiter is an empty string, hence it will break up between each single character.
Iterators make your code more generic.
Every standard library container provides an iterator hence if you change your container class in future the loop wont be affected.
Most answers here are lacking a useful information:
Yes, you can programmatically click the input element using jQuery/JavaScript, but only if you do it in an event handler belonging to an event THAT WAS STARTED BY THE USER!
So, for example, nothing will happen if you, the script, programmatically click the button in an ajax callback, but if you put the same line of code in an event handler that was raised by the user, it will work.
P.S. The debugger;
keyword disrupts the browse window if it is before the programmatical click ...at least in chrome 33...
Here is an updated answer for iOS7+. It uses NSURLSession, the new hotness. Disclaimer, this is untested and was written in a text field:
- (void)post {
NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] delegate:self delegateQueue:nil];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://example.com/dontposthere"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
// Uncomment the following two lines if you're using JSON like I imagine many people are (the person who is asking specified plain text)
// [request addValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
// [request addValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setHTTPMethod:@"POST"];
NSURLSessionDataTask *postDataTask = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}];
[postDataTask resume];
}
-(void)URLSession:(NSURLSession *)session didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)( NSURLSessionAuthChallengeDisposition disposition, NSURLCredential *credential))completionHandler {
completionHandler(NSURLSessionAuthChallengeUseCredential, [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust]);
}
Or better yet, use AFNetworking 2.0+. Usually I would subclass AFHTTPSessionManager, but I'm putting this all in one method to have a concise example.
- (void)post {
AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithBaseURL:[NSURL URLWithString:@"https://example.com"]];
// Many people will probably want [AFJSONRequestSerializer serializer];
manager.requestSerializer = [AFHTTPRequestSerializer serializer];
// Many people will probably want [AFJSONResponseSerializer serializer];
manager.responseSerializer = [AFHTTPRequestSerializer serializer];
manager.securityPolicy.allowInvalidCertificates = NO; // Some servers require this to be YES, but default is NO.
[manager.requestSerializer setAuthorizationHeaderFieldWithUsername:@"username" password:@"password"];
[[manager POST:@"dontposthere" parameters:nil success:^(NSURLSessionDataTask *task, id responseObject) {
NSString *responseString = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
} failure:^(NSURLSessionDataTask *task, NSError *error) {
NSLog(@"darn it");
}] resume];
}
If you are using the JSON response serializer, the responseObject will be object from the JSON response (often NSDictionary or NSArray).
I fixed this issue like that:
rm -fr ~/Library/Caches/CocoaPods && \
gem update --system && \
gem update && \
gem cleanup && \
pod setup
Reference: http://blog.cocoapods.org/Repairing-Our-Broken-Specs-Repository/
Easiest way for me is using Android Device Monitor to get the database file and SQLite DataBase Browser to view the file while still using Android Studio to program android.
1) Run and launch database app with Android emulator from Android Studio. (I inserted some data to database app to verify)
2) Run Android Device Monitor. How to run?; Go to [your_folder] > sdk >tools
. You can see monitor.bat in that folder. shift + right click
inside the folder and select "Open command window here
". This action will launch command prompt. type monitor
and Android Device Monitor will be launched.
3) Select the emulator that you are currently running. Then Go to data>data>[your_app_name]>databases
4) Click on the icon (located at top right corner) (hover on the icon and you will see "pull a file from the device") and save anywhere you like
5) Launch SQLite DataBase Browser. Drag and drop the file that you just saved into that Browser.
6) Go to Browse Data
tab and select your table to view.
So you can use the following :
td {
white-space: normal !important; // To consider whitespace.
}
If this doesn't work:
td {
white-space: normal !important;
word-wrap: break-word;
}
table {
table-layout: fixed;
}
Sign-off is a line at the end of the commit message which certifies who is the author of the commit. Its main purpose is to improve tracking of who did what, especially with patches.
Example commit:
Add tests for the payment processor.
Signed-off-by: Humpty Dumpty <[email protected]>
It should contain the user real name if used for an open-source project.
If branch maintainer need to slightly modify patches in order to merge them, he could ask the submitter to rediff, but it would be counter-productive. He can adjust the code and put his sign-off at the end so the original author still gets credit for the patch.
Add tests for the payment processor.
Signed-off-by: Humpty Dumpty <[email protected]>
[Project Maintainer: Renamed test methods according to naming convention.]
Signed-off-by: Project Maintainer <[email protected]>
Source: http://gerrit.googlecode.com/svn/documentation/2.0/user-signedoffby.html
I know that boto3 is the topic being discussed here, but I find that it is usually quicker and more intuitive to simply use awscli for something like this - awscli retains more capabilities that boto3 for what than is worth.
For example, if I have objects saved in "subfolders" associated with a given bucket, I can list them all out with something such as this:
1) 'mydata' = bucket name
2) 'f1/f2/f3' = "path" leading to "files" or objects
3) 'foo2.csv, barfar.segy, gar.tar' = all objects "inside" f3
So, we can think of the "absolute path" leading to these objects is: 'mydata/f1/f2/f3/foo2.csv'...
Using awscli commands, we can easily list all objects inside a given "subfolder" via:
aws s3 ls s3://mydata/f1/f2/f3/ --recursive
The best thing is probably to create a variable that holds your binaries:
binaries=code1 code2
Then use that in the all
-target, to avoid repeating:
all: clean $(binaries)
Now, you can use this with the clean
-target, too, and just add some globs to catch object files and stuff:
.PHONY: clean
clean:
rm -f $(binaries) *.o
Note use of the .PHONY
to make clean
a pseudo-target. This is a GNU make feature, so if you need to be portable to other make implementations, don't use it.
for %1 in (*.*) do echo %1
Try "HELP FOR" in cmd for a full guide
This is the guide for XP commands. http://www.ss64.com/nt/
Addition to the answer of Brett DeWoody: (which is updated now)
var dataValue = obj.srcElement.attributes.data.nodeValue;
Works fine in IE(9+) and Chrome, but Firefox does not know the srcElement property. I found:
var dataValue = obj.currentTarget.attributes.data.nodeValue;
Works in IE, Chrome and FF, I did not test Safari.
I'm extending @samwize's answer to handle multi-line UILabel and give an example on using for a UIButton
extension UITapGestureRecognizer {
func didTapAttributedTextInButton(button: UIButton, inRange targetRange: NSRange) -> Bool {
guard let label = button.titleLabel else { return false }
return didTapAttributedTextInLabel(label, inRange: targetRange)
}
func didTapAttributedTextInLabel(label: UILabel, inRange targetRange: NSRange) -> Bool {
// Create instances of NSLayoutManager, NSTextContainer and NSTextStorage
let layoutManager = NSLayoutManager()
let textContainer = NSTextContainer(size: CGSize.zero)
let textStorage = NSTextStorage(attributedString: label.attributedText!)
// Configure layoutManager and textStorage
layoutManager.addTextContainer(textContainer)
textStorage.addLayoutManager(layoutManager)
// Configure textContainer
textContainer.lineFragmentPadding = 0.0
textContainer.lineBreakMode = label.lineBreakMode
textContainer.maximumNumberOfLines = label.numberOfLines
let labelSize = label.bounds.size
textContainer.size = labelSize
// Find the tapped character location and compare it to the specified range
let locationOfTouchInLabel = self.locationInView(label)
let textBoundingBox = layoutManager.usedRectForTextContainer(textContainer)
let textContainerOffset = CGPointMake((labelSize.width - textBoundingBox.size.width) * 0.5 - textBoundingBox.origin.x,
(labelSize.height - textBoundingBox.size.height) * 0.5 - textBoundingBox.origin.y);
let locationOfTouchInTextContainer = CGPointMake((locationOfTouchInLabel.x - textContainerOffset.x),
0 );
// Adjust for multiple lines of text
let lineModifier = Int(ceil(locationOfTouchInLabel.y / label.font.lineHeight)) - 1
let rightMostFirstLinePoint = CGPointMake(labelSize.width, 0)
let charsPerLine = layoutManager.characterIndexForPoint(rightMostFirstLinePoint, inTextContainer: textContainer, fractionOfDistanceBetweenInsertionPoints: nil)
let indexOfCharacter = layoutManager.characterIndexForPoint(locationOfTouchInTextContainer, inTextContainer: textContainer, fractionOfDistanceBetweenInsertionPoints: nil)
let adjustedRange = indexOfCharacter + (lineModifier * charsPerLine)
return NSLocationInRange(adjustedRange, targetRange)
}
}
@Chris Johnsen's answer is great, but with a newer versions of Git (1.8.2 or later), there is a double asterisk pattern you can leverage for a bit more shorthand solution:
# assuming the root folder you want to ignore is 'application'
application/**/*
# the subfolder(s) you want to track:
!application/language/gr/
This way you don't have to "unignore" parent directory of the subfolder you want to track.
With Git 2.17.0 (Not sure how early before this version. Possibly back to 1.8.2), using the **
pattern combined with excludes for each subdirectory leading up to your file(s) works. For example:
# assuming the root folder you want to ignore is 'application'
application/**
# Explicitly track certain content nested in the 'application' folder:
!application/language/
!application/language/gr/
!application/language/gr/** # Example adding all files & folder in the 'gr' folder
!application/language/gr/SomeFile.txt # Example adding specific file in the 'gr' folder
remove the margin for the h4 tag
h4 {
margin:0px;
}
Fiddle link
Use margin instead of padding in the parent div: http://blog.vjeux.com/2012/css/css-absolute-position-taking-into-account-padding.html
When you've written something that isn't allowed by the language standard (and therefore can't really be well-defined behaviour, which is reason enough to not do it) but happens to map to some kind of executable if fed naïvely to the compiling engine, then -fpermissive
will do just that instead of stopping with this error message. In some cases, the program will then behave exactly as you originally intended, but you definitely shouldn't rely on it unless you have some very special reason not to use some other solution.
From the Javadocs for setDisplayOrientation(int)
(Requires API level 9):
public static void setCameraDisplayOrientation(Activity activity,
int cameraId, android.hardware.Camera camera) {
android.hardware.Camera.CameraInfo info =
new android.hardware.Camera.CameraInfo();
android.hardware.Camera.getCameraInfo(cameraId, info);
int rotation = activity.getWindowManager().getDefaultDisplay()
.getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0: degrees = 0; break;
case Surface.ROTATION_90: degrees = 90; break;
case Surface.ROTATION_180: degrees = 180; break;
case Surface.ROTATION_270: degrees = 270; break;
}
int result;
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
result = (info.orientation + degrees) % 360;
result = (360 - result) % 360; // compensate the mirror
} else { // back-facing
result = (info.orientation - degrees + 360) % 360;
}
camera.setDisplayOrientation(result);
}
Void is used as a keyword. The void pointer, also known as the generic pointer, is a special type of pointer that can be pointed at objects of any data type! A void pointer is declared like a normal pointer, using the void keyword as the pointer’s type:
General Syntax:
void* pointer_variable;
void *pVoid; // pVoid is a void pointer
A void pointer can point to objects of any data type:
int nValue;
float fValue;
struct Something
{
int nValue;
float fValue;
};
Something sValue;
void *pVoid;
pVoid = &nValue; // valid
pVoid = &fValue; // valid
pVoid = &sValue; // valid
However, because the void pointer does not know what type of object it is pointing to, it can not be dereferenced! Rather, the void pointer must first be explicitly cast to another pointer type before it is dereferenced.
int nValue = 5;
void *pVoid = &nValue;
// can not dereference pVoid because it is a void pointer
int *pInt = static_cast<int*>(pVoid); // cast from void* to int*
cout << *pInt << endl; // can dereference pInt
Source: link
Instead of overflow:auto
, try overflow-y:auto
. Should work like a charm!
I've a directory with a bunch of files. I want to find all the files that DO NOT contain the string "speedup" so I successfully used the following command:
grep -iL speedup *
You should definitely have a look at this answer of mine:
and also have a look at all the links included therein.
Tabula/TabulaPDF is currently the best table extraction tool that is available for PDF scraping.
getDrawable(int drawable) is deprecated in API level 22. For reference see this link.
Now to resolve this problem we have to pass a new constructer along with id like as :-
getDrawable(int id, Resources.Theme theme)
For Solutions Do like this:-
In Java:-
ContextCompat.getDrawable(getActivity(), R.drawable.name);
or
imgProfile.setImageDrawable(getResources().getDrawable(R.drawable.img_prof, getApplicationContext().getTheme()));
In Kotlin :-
rel_week.background=ContextCompat.getDrawable(this.requireContext(), R.color.colorWhite)
or
rel_day.background=resources.getDrawable(R.drawable.ic_home, context?.theme)
Hope this will help you.Thanks.
Here is the Swift 3 answer for anyone looking since Swift 3 does not accept "Make".
aView.center = CGPoint(x: 200, Y: 200)
for i in `cat Hostlist`
do
ping -c1 -w2 $i | grep "PING" | awk '{print $2,$3}'
done
You can try YConsole a js embedded console. It is lightweight and simple to use.
How to use :
<script type="text/javascript" src="js/YConsole-compiled.js"></script>
<script type="text/javascript" >YConsole.show();</script>
As already said here synchronized block can use user-defined variable as lock object, when synchronized function uses only "this". And of course you can manipulate with areas of your function which should be synchronized. But everyone says that no difference between synchronized function and block which covers whole function using "this" as lock object. That is not true, difference is in byte code which will be generated in both situations. In case of synchronized block usage should be allocated local variable which holds reference to "this". And as result we will have a little bit larger size for function (not relevant if you have only few number of functions).
More detailed explanation of the difference you can find here: http://www.artima.com/insidejvm/ed2/threadsynchP.html
Here is my solution:
#include <fstream>
int main()
{
std::ofstream ("Hello.txt");
return 0;
}
File (Hello.txt) is created even without ofstream name, and this is the difference from Mr. Boiethios answer.
You can find the last commit which deleted file as follows:
git rev-list -n 1 HEAD -- [file_path]
Further information is available here
The C++ syntax is like this:
class Bar : public Foo {
// ...
void printStuff() {
Foo::printStuff(); // calls base class' function
}
};
Avoid using C-Style casts.
C-style casts are a mix of const and reinterpret cast, and it's difficult to find-and-replace in your code. A C++ application programmer should avoid C-style cast.
I was facing the same issue of having the dialog not opening centered and scrolling my page to the top. The tag that I'm using to open the dialog is an anchor tag:
<a href="#">View More</a>
The pound symbol was causing the issue for me. All I did was modify the href in the anchor like so:
<a href="javascript:{}">View More</a>
Now my page is happy and centering the dialogs.
This is common issue with floating points.
Use toFixed
in combination with parseFloat
.
Here is example in JavaScript:
function roundNumber(number, decimals) {
var newnumber = new Number(number+'').toFixed(parseInt(decimals));
return parseFloat(newnumber);
}
0.1 + 0.2; //=> 0.30000000000000004
roundNumber( 0.1 + 0.2, 12 ); //=> 0.3
[Mac only]
If you need to delete your authentication, use
git credential-osxkeychain erase
host=github.com
protocol=https
on Mac.
See https://help.github.com/articles/updating-credentials-from-the-osx-keychain/
HTML input number type allows "e/E" because "e" stands for exponential which is a numeric symbol.
Example 200000 can also be written as 2e5. I hope this helps thank you for the question.
Yes, that is fully possible (i.e. I do exactly this); you just need to reference the right dll (System.ServiceProcess.dll) and add an installer class...
[RunInstaller(true)]
public sealed class MyServiceInstallerProcess : ServiceProcessInstaller
{
public MyServiceInstallerProcess()
{
this.Account = ServiceAccount.NetworkService;
}
}
[RunInstaller(true)]
public sealed class MyServiceInstaller : ServiceInstaller
{
public MyServiceInstaller()
{
this.Description = "Service Description";
this.DisplayName = "Service Name";
this.ServiceName = "ServiceName";
this.StartType = System.ServiceProcess.ServiceStartMode.Automatic;
}
}
static void Install(bool undo, string[] args)
{
try
{
Console.WriteLine(undo ? "uninstalling" : "installing");
using (AssemblyInstaller inst = new AssemblyInstaller(typeof(Program).Assembly, args))
{
IDictionary state = new Hashtable();
inst.UseNewContext = true;
try
{
if (undo)
{
inst.Uninstall(state);
}
else
{
inst.Install(state);
inst.Commit(state);
}
}
catch
{
try
{
inst.Rollback(state);
}
catch { }
throw;
}
}
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.Message);
}
}
Kalle posted a link to a page that has this video on it, but it's done on XP. If you use Windows 7:
alt + n
alt + e
;
(that's a semicolon)C:\Python27
windows key + r
to bring up the run dialog. Type in python
and press enter.To use the default system proxies (e.g. from the http_support environment variable), the following works for the current request (without installing it into urllib2 globally):
url = 'http://www.example.com/'
proxy = urllib2.ProxyHandler()
opener = urllib2.build_opener(proxy)
in_ = opener.open(url)
in_.read()
Declaring a variable as volatile means that modifying its value immediately affects the actual memory storage for the variable. The compiler cannot optimize away any references made to the variable. This guarantees that when one thread modifies the variable, all other threads see the new value immediately. (This is not guaranteed for non-volatile variables.)
Declaring an atomic variable guarantees that operations made on the variable occur in an atomic fashion, i.e., that all of the substeps of the operation are completed within the thread they are executed and are not interrupted by other threads. For example, an increment-and-test operation requires the variable to be incremented and then compared to another value; an atomic operation guarantees that both of these steps will be completed as if they were a single indivisible/uninterruptible operation.
Synchronizing all accesses to a variable allows only a single thread at a time to access the variable, and forces all other threads to wait for that accessing thread to release its access to the variable.
Synchronized access is similar to atomic access, but the atomic operations are generally implemented at a lower level of programming. Also, it is entirely possible to synchronize only some accesses to a variable and allow other accesses to be unsynchronized (e.g., synchronize all writes to a variable but none of the reads from it).
Atomicity, synchronization, and volatility are independent attributes, but are typically used in combination to enforce proper thread cooperation for accessing variables.
Addendum (April 2016)
Synchronized access to a variable is usually implemented using a monitor or semaphore. These are low-level mutex (mutual exclusion) mechanisms that allow a thread to acquire control of a variable or block of code exclusively, forcing all other threads to wait if they also attempt to acquire the same mutex. Once the owning thread releases the mutex, another thread can acquire the mutex in turn.
Addendum (July 2016)
Synchronization occurs on an object. This means that calling a synchronized method of a class will lock the this
object of the call. Static synchronized methods will lock the Class
object itself.
Likewise, entering a synchronized block requires locking the this
object of the method.
This means that a synchronized method (or block) can be executing in multiple threads at the same time if they are locking on different objects, but only one thread can execute a synchronized method (or block) at a time for any given single object.
You did not activate the virtual environment before using pip.
Try it with:
$(your venv path) . bin/activate
And then use pip -r requirements.txt on your main folder
@Adrian's answer is perfectly suitable, I just wanted to share another way of achieving the same result:
select nvl(a.id, b.id)
from a full outer join b on a.id = b.id
order by b.id;
Swift 4, 4.2 & 5
var timeZone : String = String()
override func viewDidLoad() {
super.viewDidLoad()
timeZone = getCurrentTimeZone()
print(timeZone)
}
func getCurrentTimeZone() -> String {
let localTimeZoneAbbreviation: Int = TimeZone.current.secondsFromGMT()
let items = (localTimeZoneAbbreviation / 3600)
return "\(items)"
}
just change SHIFT
to ORB
,
I think it make occur because of non-relevant version,
ORB is efficient and better alternative of SHIFT or SURF.
As I also face same problem when i was used cv2.SHIFT()
ERROR: AttributeError: 'module' object has no attribute 'SIFT'
Now its completely working for me please try this:
ORB = cv2.ORB()
I had a similar issue and ended up with this:
For me this has the advantage that data and annotation are not overlapping.
from matplotlib import pyplot as plt
import numpy as np
fig = plt.figure()
ax = fig.add_subplot(111)
A = -0.75, -0.25, 0, 0.25, 0.5, 0.75, 1.0
B = 0.73, 0.97, 1.0, 0.97, 0.88, 0.73, 0.54
plt.plot(A,B)
# annotations at the side (ordered by B values)
x0,x1=ax.get_xlim()
y0,y1=ax.get_ylim()
for ii, ind in enumerate(np.argsort(B)):
x = A[ind]
y = B[ind]
xPos = x1 + .02 * (x1 - x0)
yPos = y0 + ii * (y1 - y0)/(len(B) - 1)
ax.annotate('',#label,
xy=(x, y), xycoords='data',
xytext=(xPos, yPos), textcoords='data',
arrowprops=dict(
connectionstyle="arc3,rad=0.",
shrinkA=0, shrinkB=10,
arrowstyle= '-|>', ls= '-', linewidth=2
),
va='bottom', ha='left', zorder=19
)
ax.text(xPos + .01 * (x1 - x0), yPos,
'({:.2f}, {:.2f})'.format(x,y),
transform=ax.transData, va='center')
plt.grid()
plt.show()
Using the text argument in .annotate
ended up with unfavorable text positions.
Drawing lines between a legend and the data points is a mess, as the location of the legend is hard to address.
I tried to edit the answer provided by marc_s however it wasn't accepted for some reason. It formats the sql for easier reading, includes the schema and also names the Default name so that this can easily be pasted into other code.
SELECT SchemaName = s.Name,
TableName = t.Name,
ColumnName = c.Name,
DefaultName = dc.Name,
DefaultDefinition = dc.Definition
FROM sys.schemas s
JOIN sys.tables t on t.schema_id = s.schema_id
JOIN sys.default_constraints dc on dc.parent_object_id = t.object_id
JOIN sys.columns c on c.object_id = dc.parent_object_id
and c.column_id = dc.parent_column_id
ORDER BY s.Name, t.Name, c.name
In my case, the issue was not about binding redirects or missing/mismatched Microsoft.AspNet.Razor package/dlls, so the above solutions didn't work.
The issue, in my non-web project, was that RazorEngine+Microsoft.AspNet.Razor were installed in a different project (Project A) than the calling assembly/start-up project (Project B). Because there's no explicit reference to Razor, the System.Web.Razor did NOT get copied to /bin in a Release build.
The solution was to Install RazorEngine+Microsoft.AspNet.Razor in the application entry point (Project B, ConsoleApplication in my case), then the System.Web.Razor gets copied to /bin and everyone's happy.
You are getting something wrong... RTSP is a realtime streaming protocol. Meaning, you can stream whatever you want in real time. So you can use it to stream LIVE content (no matter what it is, video, audio, text, presentation...). RTP is a transport protocol which is used to transport media data which is negotiated over RTSP.
You use RTSP to control media transmission over RTP. You use it to setup, play, pause, teardown the stream...
So, if you want your server to just start streaming when the URL is requested, you can implement some sort of RTP-only server. But if you want more control and if you are streaming live video, you must use RTSP, because it transmits SDP and other important decoding data.
Read the documents I linked here, they are a good starting point.
VBA uses a garbage collector which is implemented by reference counting.
There can be multiple references to a given object (for example, Dim aw = ActiveWorkbook
creates a new reference to Active Workbook), so the garbage collector only cleans up an object when it is clear that there are no other references. Setting to Nothing is an explicit way of decrementing the reference count. The count is implicitly decremented when you exit scope.
Strictly speaking, in modern Excel versions (2010+) setting to Nothing isn't necessary, but there were issues with older versions of Excel (for which the workaround was to explicitly set)
This works in viewDidLoad:
for iOS 8:
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
self.navigationController.interactivePopGestureRecognizer.enabled = false;
});
Lots of the problems could be solved with help of the good ol' dispatch_after
.
Though please note that this solution is potentially unsafe, please use your own reasoning.
For iOS 8.1 delay time should be 0.5 seconds
On iOS 9.3 no delay needed anymore, it works just by placing this in your viewDidLoad
:
(TBD if works on iOS 9.0-9.3)
navigationController?.interactivePopGestureRecognizer?.enabled = false
select column_name,data_type
from information_schema.columns
where table_name = 'table_name';
with the above query you can columns and its datatype
See the documentation for the print function: print()
The content of end
is printed after the thing you want to print. By default it contains a newline ("\n"
) but it can be changed to something else, like an empty string.
Here's the config for ISAPI_Rewrite 3:
RewriteBase /
RewriteCond %{HTTP_HOST} ^mysite.org.uk$ [NC]
RewriteRule ^stuff/(.+)$ http://stuff.mysite.org.uk/$1 [NC,R=301,L]
According to the Apple Human Interface Guidelines:
@1x : about 25 x 25 (max: 48 x 32)
@2x : about 50 x 50 (max: 96 x 64)
@3x : about 75 x 75 (max: 144 x 96)
if you have API level smaller than 23 than you must use it this way. it worked for me declare this under v21/style.
<item name="colorPrimaryDark" tools:targetApi="23">@color/colorPrimary</item>
<item name="android:windowLightStatusBar" tools:targetApi="23">true</item>
To start all the containers:
docker restart $(docker ps -a -q)
Use sudo if you don't have permission to perform this:
sudo docker restart $(sudo docker ps -a -q)
Try the -fno-stack-protector
flag.
The best solution is the word-spacing
property.
Add the <p>
in a container with a specific size (example 300px
) and after you have to add that size as the value in the word-spacing.
HTML
<div>
<p>Sentence Here</p>
</div>
CSS
div {
width: 300px;
}
p {
width: auto;
text-align: center;
word-spacing: 300px;
}
In this way, your sentence will be always broken and set in a column, but the with of the paragraph will be dynamic.
Here an example Codepen
Instead of what you have written, you can write it directly in the SelectedIndexChanged event of the dropdownlist control, e.g.
protected void ddlleavetype_SelectedIndexChanged(object sender, EventArgs e)
{
//code goes here
}
div{_x000D_
height:100vh;_x000D_
}
_x000D_
<div></div>
_x000D_
It depends on the type of chip you are using, but nowerdays most chips you can write. It also depends on how much power you give your RFID device. To read you dont need allot of power and very little line of sight. To right you need them full insight and longer insight
Here's what you can do to periodically check for a change of hash, and then call a function to process the hash value.
var hash = false;
checkHash();
function checkHash(){
if(window.location.hash != hash) {
hash = window.location.hash;
processHash(hash);
} t=setTimeout("checkHash()",400);
}
function processHash(hash){
alert(hash);
}
Static block can be used to show that a program can run without main function also.
//static block
//static block is used to initlize static data member of the clas at the time of clas loading
//static block is exeuted before the main
class B
{
static
{
System.out.println("Welcome to Java");
System.exit(0);
}
}
The 'as' notation in c# 3.0 is very clean. Since all session variables are nullable objects, this lets you grab the value and put it into your own typed variable without worry of throwing an exception. Most objects can be handled this way.
string mySessionVar = Session["mySessionVar"] as string;
My concept is that you should pull your Session variables into local variables and then handle them appropriately. Always assume your Session variables could be null and never cast them into a non-nullable type.
If you need a non-nullable typed variable you can then use TryParse to get that.
int mySessionInt;
if (!int.TryParse(mySessionVar, out mySessionInt)){
// handle the case where your session variable did not parse into the expected type
// e.g. mySessionInt = 0;
}
There are a couple of things that need to be adjusted in your layout:
You are nesting col
elements within form-group
elements. This should be the other way around (the form-group
should be within the col-sm-xx
element).
You should always use a row
div for each new "row" in your design. In your case, you would need at least 5 rows (Username, Password and co, Title/First/Last name, email, Language). Otherwise, your problematic .col-sm-12
is still on the same row with the above 3 .col-sm-4
resulting in a total of columns greater than 12, and causing the overlap problem.
Here is a fixed demo.
And an excerpt of what the problematic section HTML should become:
<fieldset>
<legend>Personal Information</legend>
<div class='row'>
<div class='col-sm-4'>
<div class='form-group'>
<label for="user_title">Title</label>
<input class="form-control" id="user_title" name="user[title]" size="30" type="text" />
</div>
</div>
<div class='col-sm-4'>
<div class='form-group'>
<label for="user_firstname">First name</label>
<input class="form-control" id="user_firstname" name="user[firstname]" required="true" size="30" type="text" />
</div>
</div>
<div class='col-sm-4'>
<div class='form-group'>
<label for="user_lastname">Last name</label>
<input class="form-control" id="user_lastname" name="user[lastname]" required="true" size="30" type="text" />
</div>
</div>
</div>
<div class='row'>
<div class='col-sm-12'>
<div class='form-group'>
<label for="user_email">Email</label>
<input class="form-control required email" id="user_email" name="user[email]" required="true" size="30" type="text" />
</div>
</div>
</div>
</fieldset>
I just had the same issue with Netbeans 8.2 and trying to connect to mySQL server on a Mac OS machine. The only thing that worked for me was to add the following to the url of the connection string: &serverTimezone=UTC (or if you are connecting via Hibernate.cfg.xml then escape the & as &) Not surprisingly I found the solution on this stack overflow post also:
MySQL JDBC Driver 5.1.33 - Time Zone Issue
Best Regards, Claudio
If anyone is strugling with the same problem I solved it by adding @EntityScan
in my main class. Just add your model package to the basePackages property.
object.__del__(self)
is called when the instance is about to be destroyed.
>>> class Test:
... def __del__(self):
... print "deleted"
...
>>> test = Test()
>>> del test
deleted
Object is not deleted unless all of its references are removed(As quoted by ethan)
Also, From Python official doc reference:
del x doesn’t directly call x.del() — the former decrements the reference count for x by one, and the latter is only called when x‘s reference count reaches zero
just use mysqldump -u root database table
or if using with password mysqldump -u root -p pass database table
I used this: config.log_level = :info
edit-in config/environments/performance.rb
Working great for me, rejecting SQL output, and show only rendering and important info.
You want to check that each character matches your requirements, which is why we use:
[A-Za-z0-9_]
And you can even use the shorthand version:
\w
Which is equivalent (in some regex flavors, so make sure you check before you use it). Then to indicate that the entire string must match, you use:
^
To indicate the string must start with that character, then use
$
To indicate the string must end with that character. Then use
\w+ or \w*
To indicate "1 or more", or "0 or more". Putting it all together, we have:
^\w*$
To do this for a specific target, you can do the following:
target_compile_definitions(my_target PRIVATE FOO=1 BAR=1)
You should do this if you have more than one target that you're building and you don't want them all to use the same flags. Also see the official documentation on target_compile_definitions.
One major disadvantage of SPA - SEO. Only recently Google and Bing started indexing Ajax-based pages by executing JavaScript during crawling, and still in many cases pages are being indexed incorrectly.
While developing SPA, you will be forced to handle SEO issues, probably by post-rendering all your site and creating static html snapshots for crawler's use. This will require a solid investment in a proper infrastructures.
Since writing this answer a while ago, I gain much more experience with Single Page Apps (namely, AngularJS 1.x) - so I have more info to share.
In my opinion, the main disadvantage of SPA applications is SEO, making them limited to kind of "dashboard" apps only. In addition, you are going to have a much harder times with caching, compared to classic solutions. For example, in ASP.NET caching is extreamly easy - just turn on OutputCaching and you are good: the whole HTML page will be cached according to URL (or any other parameters). However, in SPA you will need to handle caching yourself (by using some solutions like second level cache, template caching, etc..).
For Xcode 6.4, Swift 1.2 . The selection "tag" had been changed in IB. I don't know how and why. Setting it to "Single Selection" made my table view cells selectable again.
Use commitAllowingStateLoss()
instead of commit()
.
when you use commit()
it will can throw an exception if state loss occurs but commitAllowingStateLoss()
saves transaction without state loss so that will doesn't throw an exception if state loss occurs.
You could also put non-breaking spaces (&nbsp;) in lieu of the spaces so that they're forced to stay together.
How do I wrap this line of text
- asked by Peter 2 days ago
You can also use pd.DataFrame.from_dict(d)
as :
In [8]: d = [{'points': 50, 'time': '5:00', 'year': 2010},
...: {'points': 25, 'time': '6:00', 'month': "february"},
...: {'points':90, 'time': '9:00', 'month': 'january'},
...: {'points_h1':20, 'month': 'june'}]
In [12]: pd.DataFrame.from_dict(d)
Out[12]:
month points points_h1 time year
0 NaN 50.0 NaN 5:00 2010.0
1 february 25.0 NaN 6:00 NaN
2 january 90.0 NaN 9:00 NaN
3 june NaN 20.0 NaN NaN
if what you need to do is specific only for 1 or 2 pages i suggest to use set_time_limit so it did not affect the whole application.
set_time_limit(some_values);
but ofcourse these 2 values (post_max_size & upload_max_filesize) are subject to investigate.
you either can set it via ini_set function
ini_set('post_max_size','20M');
ini_set('upload_max_filesize','2M');
or directly in php.ini file like response above by Hannes, or even set it iin .htaccess like below
php_value upload_max_filesize 2M
php_value post_max_size 20M
We had a similar issue. We were trying to GET from:
[RoutePrefix("api/car")]
public class CarController: ApiController{
[HTTPGet]
[Route("")]
public virtual async Task<ActionResult> GetAll(){
}
}
So we would .GET("/api/car")
and this would throw a 405 error
.
The CarController.cs
file was in the directory /api/car
so when we were requesting this api endpoint, IIS would send back an error because it looked like we were trying to access a virtual directory that we were not allowed to.
Option 1: change / rename the directory the controller is in
Option 2: change the route prefix to something that doesn't match the virtual directory.
Just to add that the answer that Alex provided worked for me, and not the one that is highlighted as an answer.
This one didn't work for me
$('#country.save')
But this one did:
$('#country .save')
so my conclusion is to use the space. Now I don't know if it's to the new version of jQuery that I'm using (1.5.1), but anyway hope this helps to anyone with similar problem that I've had.
edit: Full credit for explanation (in the comment to Alex's answer) goes to Felix Kling who says:
The space is the descendant selector, i.e. A B means "Match all elements that
match B which are a descendant of elements matching A". AB means "select all
element that match A and B". So it really depends on what you want to achieve. #country.save
and #country .save
are not equivalent.
Just do:
sudo apt-get install python-lxml
For Python 2 (e.g., required by Inkscape):
sudo apt-get install python2-lxml
If you are planning to install from source, then albertov's answer will help. But unless there is a reason, don't, just install it from the repository.
Had been over looking the issue having surfaced it. Believe this will be a good read for others who come down here with the same issue:
This is what I use. I make no pretense that it's far less "efficient" than the simpler solutions above. What it does do is provide a much clearer exception message than "ArrayIndexOutOfBounds" when an invalid ordinal value is used in the solution above.
It utilizes the fact that EnumSet javadoc specifies the iterator returns elements in their natural order. There's an assert if that's not correct.
The JUnit4 Test demonstrates how it's used.
/**
* convert ordinal to Enum
* @param clzz may not be null
* @param ordinal
* @return e with e.ordinal( ) == ordinal
* @throws IllegalArgumentException if ordinal out of range
*/
public static <E extends Enum<E> > E lookupEnum(Class<E> clzz, int ordinal) {
EnumSet<E> set = EnumSet.allOf(clzz);
if (ordinal < set.size()) {
Iterator<E> iter = set.iterator();
for (int i = 0; i < ordinal; i++) {
iter.next();
}
E rval = iter.next();
assert(rval.ordinal() == ordinal);
return rval;
}
throw new IllegalArgumentException("Invalid value " + ordinal + " for " + clzz.getName( ) + ", must be < " + set.size());
}
@Test
public void lookupTest( ) {
java.util.concurrent.TimeUnit tu = lookupEnum(TimeUnit.class, 3);
System.out.println(tu);
}
Based on the Microsoft support KBs, this can occur if TCP/IP is damaged or is not bound to your dial-up adapter.You can try reinstalling or resetting TCP/IP as follows:
Reset TCP/IP to Original Configuration- Using the NetShell utility,
type this command (in CommandLine): netsh int ip reset [file_name.txt]
,
[file_name.txt] is the name of the file where the actions taken by
NetShell are record, for example netsh hint ip reset fixtcpip.txt.
Remove and re-install NIC – Open Controller and select System. Click Hardware tab and select devices. Double-click on Network Adapter and right-click on the NIC, select Uninstall. Restart the computer and the Windows should auto detect the NIC and re-install it.
Hope it could help.
Preferably use std::iota
like this:
std::vector<int> v(100) ; // vector with 100 ints.
std::iota (std::begin(v), std::end(v), 0); // Fill with 0, 1, ..., 99.
That said, if you don't have any c++11
support (still a real problem where I work), use std::generate
like this:
struct IncGenerator {
int current_;
IncGenerator (int start) : current_(start) {}
int operator() () { return current_++; }
};
// ...
std::vector<int> v(100) ; // vector with 100 ints.
IncGenerator g (0);
std::generate( v.begin(), v.end(), g); // Fill with the result of calling g() repeatedly.
Building on modle13's answer, but without the re
module dependency.
def iter_find(haystack, needle):
return [i for i in range(0, len(haystack)) if haystack[i:].startswith(needle)]
I kinda wish this was a builtin string method.
>>> iter_find("http://stackoverflow.com/questions/1883980/", '/')
[5, 6, 24, 34, 42]
a=[]
b=int(input())
for i in range(b):
c=int(input())
a.append(c)
The above code snippets is easy method to get values from the user.
This question has numerous answers, and they're all different due to users installing different toolchains and using different Java versions.
The recommended way of using Android development toolchain, or at least the one that I suggest to use, is to follow what's stated in Android Studio documentation:
You should always keep your Build Tools component updated by downloading the latest version using the Android SDK Manager.
Android studio allows you to easily manage installed SDKs & build tools, yes, it requires some space on your hard drive, but it will save you some time. Once you get familiar with how it works, then you can think of installing command-line tools only.
If there's no particular reason of using older Java version, use the latest (stable) version, you will have interesting new features, and also the compiled application will benefit from all the new optimizations.
Android
folder, usually in the home directorySettings
, Search Android SDK
and open itSDK Platforms
select the target Android version for your appSDK Tools
tab, select Android SDK Build-Tools
, Android SDK Command-line Tools (latest)
, Android Emulator
, Android SDK Platform-Tools
Android SDK Location
path is correct for you(Optional) if you need to use the installed binaries from command line, be sure to add their folder into your PATH variable. If you use Android studio, it's should not be required though.
I've got Java 14 installed on my machine, anyway you can use the jre shipped with Android Studio.
TLS 1.2
is only supported since OpenSSL 1.0.1
(see the Major version releases section), you have to update your OpenSSL
.
It is not necessary to set the CURLOPT_SSLVERSION
option. The request involves a handshake which will apply the newest TLS
version both server and client support. The server you request is using TLS 1.2
, so your php_curl
will use TLS 1.2
(by default) as well if your OpenSSL
version is (or newer than) 1.0.1
.
In one line:
text if not text.endswith(suffix) or len(suffix) == 0 else text[:-len(suffix)]
I know this is an old question now, but I just landed here looking for information about this so somebody else might too.
You can use Modernizr to detect whether the browser supports HTML5 input types, like 'date'. If it does, those controls will use the native behaviour to display things like datepickers. If it doesn't, you can specify what script should be used to display your own datepicker. Works well for me!
I added jquery-ui and Modernizr to my page, then added this code:
<script type="text/javascript">
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(initDateControls);
initDateControls();
function initDateControls() {
//Adds a datepicker to inputs with a type of 'date' when the browser doesn't support that HTML5 tag (type=date)'
Modernizr.load({
test: Modernizr.inputtypes.datetime,
nope: "scripts/jquery-ui.min.js",
callback: function () {
$("input[type=date]").datepicker({ dateFormat: "dd-mm-yy" });
}
});
}
</script>
This means that the native datepicker is displayed in Chrome, and the jquery-ui one is displayed in IE.
Using this method should work:
$name = $_POST['name'];
$email = $_POST['account'];
while($explore=each($email)) {
echo $explore['key'];
echo "-";
echo $explore['value'];
echo "<br/>";
}
short direct answer is no or not out of the box but i have come up with a method to use a text box and pure JS code to simulate the date input and do any format you want, here is the code
<html>
<body>
date :
<span style="position: relative;display: inline-block;border: 1px solid #a9a9a9;height: 24px;width: 500px">
<input type="date" class="xDateContainer" onchange="setCorrect(this,'xTime');" style="position: absolute; opacity: 0.0;height: 100%;width: 100%;"><input type="text" id="xTime" name="xTime" value="dd / mm / yyyy" style="border: none;height: 90%;" tabindex="-1"><span style="display: inline-block;width: 20px;z-index: 2;float: right;padding-top: 3px;" tabindex="-1">▼</span>
</span>
<script language="javascript">
var matchEnterdDate=0;
//function to set back date opacity for non supported browsers
window.onload =function(){
var input = document.createElement('input');
input.setAttribute('type','date');
input.setAttribute('value', 'some text');
if(input.value === "some text"){
allDates = document.getElementsByClassName("xDateContainer");
matchEnterdDate=1;
for (var i = 0; i < allDates.length; i++) {
allDates[i].style.opacity = "1";
}
}
}
//function to convert enterd date to any format
function setCorrect(xObj,xTraget){
var date = new Date(xObj.value);
var month = date.getMonth();
var day = date.getDate();
var year = date.getFullYear();
if(month!='NaN'){
document.getElementById(xTraget).value=day+" / "+month+" / "+year;
}else{
if(matchEnterdDate==1){document.getElementById(xTraget).value=xObj.value;}
}
}
</script>
</body>
</html>
1- please note that this method only work for browser that support date type.
2- the first function in JS code is for browser that don't support date type and set the look to a normal text input.
3- if you will use this code for multiple date inputs in your page please change the ID "xTime" of the text input in both function call and the input itself to something else and of course use the name of the input you want for the form submit.
4-on the second function you can use any format you want instead of day+" / "+month+" / "+year for example year+" / "+month+" / "+day and in the text input use a placeholder or value as yyyy / mm / dd for the user when the page load.
I use the following script to update the default alternative after install jdk.
#!/bin/bash
export JAVA_BIN_DIR=/usr/java/default/bin # replace with your installed directory
cd ${JAVA_BIN_DIR}
a=(java javac javadoc javah javap javaws)
for exe in ${a[@]}; do
sudo update-alternatives --install "/usr/bin/${exe}" "${exe}" "${JAVA_BIN_DIR}/${exe}" 1
sudo update-alternatives --set ${exe} ${JAVA_BIN_DIR}/${exe}
done
See the github repo, works with Django 3
Run startproject::
$ django-admin.py startproject sample
now a folder(sample) is created.
Create an app::
$ cd sample
$ python manage.py startapp uploader
Now a folder(uploader
) with these files are created::
uploader/
__init__.py
admin.py
app.py
models.py
tests.py
views.py
migrations/
__init__.py
On sample/settings.py
add 'uploader'
to INSTALLED_APPS
and add MEDIA_ROOT
and MEDIA_URL
, ie::
INSTALLED_APPS = [
'uploader',
...<other apps>...
]
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
MEDIA_URL = '/media/'
in sample/urls.py
add::
...<other imports>...
from django.conf import settings
from django.conf.urls.static import static
from uploader import views as uploader_views
urlpatterns = [
...<other url patterns>...
path('', uploader_views.UploadView.as_view(), name='fileupload'),
]+ static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
update uploader/models.py
::
from django.db import models
class Upload(models.Model):
upload_file = models.FileField()
upload_date = models.DateTimeField(auto_now_add =True)
update uploader/views.py
::
from django.views.generic.edit import CreateView
from django.urls import reverse_lazy
from .models import Upload
class UploadView(CreateView):
model = Upload
fields = ['upload_file', ]
success_url = reverse_lazy('fileupload')
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context['documents'] = Upload.objects.all()
return context
Create a folder sample/uploader/templates/uploader
Create a file upload_form.html ie sample/uploader/templates/uploader/upload_form.html
::
<div style="padding:40px;margin:40px;border:1px solid #ccc">
<h1>Django File Upload</h1>
<form method="post" enctype="multipart/form-data">
{% csrf_token %}
{{ form.as_p }}
<button type="submit">Submit</button>
</form><hr>
<ul>
{% for document in documents %}
<li>
<a href="{{ document.upload_file.url }}">{{ document.upload_file.name }}</a>
<small>({{ document.upload_file.size|filesizeformat }}) - {{document.upload_date}}</small>
</li>
{% endfor %}
</ul>
</div>
Syncronize database and runserver::
$ python manage.py makemigrations
$ python manage.py migrate
$ python manage.py runserver
visit http://localhost:8000/
This error tells you everything:
undefined reference toHash::insert(int, char)
You're not linking with the implementations of functions defined in Hash.h
. Don't you have a Hash.cpp
to also compile and link?
The standard does say this:
Programming languages vary widely on whether they support objects, and if so, what characteristics and constraints the objects offer. The models of object systems can be wildly divergent and are continuing to evolve. JSON instead provides a simple notation for expressing collections of name/value pairs. Most programming languages will have some feature for representing such collections, which can go by names like record, struct, dict, map, hash, or object.
The bug is in node.js at least. This code succeeds in node.js.
try {
var json = {"name":"n","name":"v"};
console.log(json); // outputs { name: 'v' }
} catch (e) {
console.log(e);
}
You can also do it by toggling between display: block on hover and display:none without hover to produce the effect.
.project
When a project is created in the workspace, a project description file is automatically generated that describes the project. The sole purpose of this file is to make the project self-describing, so that a project that is zipped up or released to a server can be correctly recreated in another workspace.
.classpath
Classpath specifies which Java source files and resource files in a project are considered by the Java builder and specifies how to find types outside of the project. The Java builder compiles the Java source files into the output folder and also copies the resources into it.
It's better to use $(window).scroll()
rather than $('#Eframe').on("mousewheel")
$('#Eframe').on("mousewheel")
will not trigger if people manually scroll using up and down arrows on the scroll bar or grabbing and dragging the scroll bar itself.
$(window).scroll(function(){
var scrollPos = $(document).scrollTop();
console.log(scrollPos);
});
If #Eframe
is an element with overflow:scroll
on it and you want it's scroll position. I think this should work (I haven't tested it though).
$('#Eframe').scroll(function(){
var scrollPos = $('#Eframe').scrollTop();
console.log(scrollPos);
});
The constraints are in the standards:
C11(ISO/IEC 9899:201x) §6.5.5 Multiplicative operators
Each of the operands shall have arithmetic type. The operands of the % operator shall have integer type.
C++11(ISO/IEC 14882:2011) §5.6 Multiplicative operators
The operands of * and / shall have arithmetic or enumeration type; the operands of % shall have integral or enumeration type. The usual arithmetic conversions are performed on the operands and determine the type of the result.
The solution is to use fmod
, which is exactly why the operands of %
are limited to integer type in the first place, according to C99 Rationale §6.5.5 Multiplicative operators:
The C89 Committee rejected extending the % operator to work on floating types as such usage would duplicate the facility provided by fmod
I need this so often that I created a function in my ~/.bashrc
file:
chmodf() {
find $2 -type f -exec chmod $1 {} \;
}
chmodd() {
find $2 -type d -exec chmod $1 {} \;
}
Now I can use these shortcuts:
chmodd 0775 .
chmodf 0664 .
For me the only thing that works is put in the activity in the manifest this atribute:
android:windowSoftInputMode="stateHidden|adjustPan"
To not show the keyboard when opening the activity and don't overlap the bottom of the view.
As an addition to all above posts, the use of the class
keyword is forced (up to and including C++14) when dealing with template template parameters, e.g.:
template <template <typename, typename> class Container, typename Type>
class MyContainer: public Container<Type, std::allocator<Type>>
{ /*...*/ };
In this example, typename Container
would have generated a compiler error, something like this:
error: expected 'class' before 'Container'
is a concept that languages like Perl have had for quite a while, and now we’ll get this ability in C# as well. In String Interpolation, we simply prefix the string with a $ (much like we use the @ for verbatim strings). Then, we simply surround the expressions we want to interpolate with curly braces (i.e. { and }):
It looks a lot like the String.Format() placeholders, but instead of an index, it is the expression itself inside the curly braces. In fact, it shouldn’t be a surprise that it looks like String.Format() because that’s really all it is – syntactical sugar that the compiler treats like String.Format() behind the scenes.
A great part is, the compiler now maintains the placeholders for you so you don’t have to worry about indexing the right argument because you simply place it right there in the string.
C# string interpolation is a method of concatenating,formatting and manipulating strings. This feature was introduced in C# 6.0. Using string interpolation, we can use objects and expressions as a part of the string interpolation operation.
Syntax of string interpolation starts with a ‘$’ symbol and expressions are defined within a bracket {} using the following syntax.
{<interpolatedExpression>[,<alignment>][:<formatString>]}
Where:
The following code example concatenates a string where an object, author as a part of the string interpolation.
string author = "Mohit";
string hello = $"Hello {author} !";
Console.WriteLine(hello); // Hello Mohit !
Read more on C#/.NET Little Wonders: String Interpolation in C# 6
If both data frames have the same column names then you should add one data frame inside ggplot()
call and also name x and y values inside aes()
of ggplot()
call. Then add first geom_line()
for the first line and add second geom_line()
call with data=df2
(where df2 is your second data frame). If you need to have lines in different colors then add color=
and name for eahc line inside aes()
of each geom_line()
.
df1<-data.frame(x=1:10,y=rnorm(10))
df2<-data.frame(x=1:10,y=rnorm(10))
ggplot(df1,aes(x,y))+geom_line(aes(color="First line"))+
geom_line(data=df2,aes(color="Second line"))+
labs(color="Legend text")
Use a delimiter to separate the values.
<select name="myValues">
<option value="one|two">
</select>
<?php>
$value = filter_input(INPUT_POST, 'myValues');
$exploded_value = explode('|', $value);
$value_one = $exploded_value[0];
$value_two = $exploded_value[1];
?>
This method should handle filenames which have any number/combination of spaces in them...
svn status /home/websites/website1 | grep -Z "^?" | sed s/^?// | sed s/[[:space:]]*// | xargs -i svn add \"{}\"
Here is an explanation of what that command does:
Use the -i argument to xargs to handle being able to import files names with spaces into 'svn add' - basically, -i sets {} to be used as a placeholder so we can put the " characters around the filename used by 'svn add'.
An advantage of this method is that this should handle filenames with spaces in them.
The number in parentheses in a type declaration is display width, which is unrelated to the range of values that can be stored in a data type. Just because you can declare Int(20)
does not mean you can store values up to 10^20 in it:
[...] This optional display width may be used by applications to display integer values having a width less than the width specified for the column by left-padding them with spaces. ...
The display width does not constrain the range of values that can be stored in the column, nor the number of digits that are displayed for values having a width exceeding that specified for the column. For example, a column specified as SMALLINT(3) has the usual SMALLINT range of -32768 to 32767, and values outside the range allowed by three characters are displayed using more than three characters.
For a list of the maximum and minimum values that can be stored in each MySQL datatype, see here.
After struggling with this for hours, I've come up with a solution that feels almost the best.
Chaos' answer of converting values to hexstring doesn't work with every datatype, specifically with datetime columns.
I use PHP's PDO::quote()
, but as it comes with PHP, PDO::quote()
is not supported for MS SQL Server and returns FALSE
. The solution for it to work was to download some Microsoft bundles:
After that you can connect in PHP with PDO using a DSN like the following example:
sqlsrv:Server=192.168.0.25; Database=My_Database;
Using the UID
and PWD
parameters in the DSN didn't worked, so username and password are passed as the second and third parameters on the PDO constructor when creating the connection.
Now you can use PHP's PDO::quote()
. Enjoy.
If you know about the impact of lazy=false
and still want to makes it as default (e.g., for prototyping purposes), you can use any of the following:
default-lazy="false"
to your <hibernate-mapping>
element@Proxy(lazy=false)
to your entity class(es)If you
you can do that starting with git 2.10. 2.10 or later is required, because 2.10 fixed the behavior of text=auto together with eol=lf. Source.
Put a .gitattributes
file in the root of your git repository having following contents:
* text=auto eol=lf
Commit it.
You can also add an .editorconfig
in the root of your repository to ensure that modern tooling creates new files with the desired line endings.
# EditorConfig is awesome: http://EditorConfig.org
# top-most EditorConfig file
root = true
# Unix-style newlines with a newline ending every file
[*]
end_of_line = lf
insert_final_newline = true
No requires converting the Task to int. Simply Use The Task Result.
int taskResult = AccessTheWebAndDouble().Result;
public async Task<int> AccessTheWebAndDouble()
{
int task = AccessTheWeb();
return task;
}
It will return the value if available otherwise it return 0.
Fastest duplicates removal queries procedure:
/* create temp table with one primary column id */
INSERT INTO temp(id) SELECT MIN(id) FROM list GROUP BY (isbn) HAVING COUNT(*)>1;
DELETE FROM list WHERE id IN (SELECT id FROM temp);
DELETE FROM temp;
Usually snprintf()
is the way to go:
char str[16]; // could be less but i'm too lazy to look for the actual the max length of an integer
snprintf(str, sizeof(str), "%d", your_integer);
To answer your question regarding updating openssl I followed these steps to successfully update the version found on my Mac to the newest openssl version 1.0.1e.
I followed the steps found here: http://foodpicky.com/?p=99
When you reach the steps for terminal commands make and make install be sure to use sudo make and sudo make install (I had to go through the step-by-step twice because I did it without sudo and it did not update).
Hope this helps
You can put a meta refresh Tag in the irc_online.php
<meta http-equiv="refresh" content="30">
OR you can use Javascript with setInterval to refresh the src of the Source...
<script>
window.setInterval("reloadIFrame();", 30000);
function reloadIFrame() {
document.frames["frameNameHere"].location.reload();
}
</script>
With the deprecation of GCM and removal of its APIs, it appears that you could see MismatchSenderId if you try to use GCM after May 29, 2019. See the Google GCM and FCM FAQ for more details.
for file in Data/*.txt
do
for ((i = 0; i < 3; i++))
do
name=${file##*/}
base=${name%.txt}
./MyProgram.exe "$file" Logs/"${base}_Log$i.txt"
done
done
The name=${file##*/}
substitution (shell parameter expansion) removes the leading pathname up to the last /
.
The base=${name%.txt}
substitution removes the trailing .txt
. It's a bit trickier if the extensions can vary.
You can open a new powershell window under a specified user credential like this:
start powershell -credential ""
No, TypeScript doesn't have a natural way of setting defaults for properties of an object defined like that where one has a default and the other does not. You could define a richer structure:
class Name {
constructor(public first : string,
public last: string = "Smith") {
}
}
And use that in place of the inline type definition.
function sayName(name: Name) {
alert(name.first + " " + name.last);
}
You can't do something like this unfortunately:
function sayName(name : { first: string; last?:string }
/* and then assign a default object matching the signature */
= { first: null, last: 'Smith' }) {
}
As it would only set the default if name
was undefined
.
Sheet sheet = workBook.getSheetAt(0); // Get Your Sheet.
for (Row row : sheet) { // For each Row.
Cell cell = row.getCell(0); // Get the Cell at the Index / Column you want.
}
My solution, a bit simpler code wise.
java.util.Date temp = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSSSSS").parse("2012-07-10 14:58:00.000000");
The mm
is minutes you want MM
CODE
public class Test {
public static void main(String[] args) throws ParseException {
java.util.Date temp = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSSSSS")
.parse("2012-07-10 14:58:00.000000");
System.out.println(temp);
}
}
Prints:
Tue Jul 10 14:58:00 EDT 2012
assuming certain column names...
INSERT one
newToner = Toner(toner_id = 1,
toner_color = 'blue',
toner_hex = '#0F85FF')
dbsession.add(newToner)
dbsession.commit()
INSERT multiple
newToner1 = Toner(toner_id = 1,
toner_color = 'blue',
toner_hex = '#0F85FF')
newToner2 = Toner(toner_id = 2,
toner_color = 'red',
toner_hex = '#F01731')
dbsession.add_all([newToner1, newToner2])
dbsession.commit()
UPDATE
q = dbsession.query(Toner)
q = q.filter(Toner.toner_id==1)
record = q.one()
record.toner_color = 'Azure Radiance'
dbsession.commit()
or using a fancy one-liner using MERGE
record = dbsession.merge(Toner( **kwargs))
You can use the YouTube JavaScript player API, which has a feature on its own to set playback quality.
player.setPlaybackQuality(suggestedQuality:String):Void
This function sets the suggested video quality for the current video. The function causes the video to reload at its current position in the new quality. If the playback quality does change, it will only change for the video being played. Calling this function does not guarantee that the playback quality will actually change. However, if the playback quality does change, the onPlaybackQualityChange event will fire, and your code should respond to the event rather than the fact that it called the setPlaybackQuality function. [source]
I had this issue on Mac OS Sierra on my way to running a React Native Android App for the first time:
Execution failed for task ':app:compileDebugJavaWithJavac'.
> Could not find tools.jar
I changed my JAVA HOME environment variable for Java Development Kit (JDK) from:
export JAVA_HOME='/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home'
to :
export JAVA_HOME='/Applications/Android Studio.app/Contents/jre/jdk/Contents/Home'
I figured out where the correct version was after creating a project in Android Studio and looking for the JDK location in the project settings.
When you insert the pair (10, 17)
and then (10, 20)
, there is technically no collision involved. You are just replacing the old value with the new value for a given key 10
(since in both cases, 10 is equal to 10 and also the hash code for 10 is always 10).
Collision happens when multiple keys hash to the same bucket. In that case, you need to make sure that you can distinguish between those keys. Chaining collision resolution is one of those techniques which is used for this.
As an example, let's suppose that two strings "abra ka dabra"
and "wave my wand"
yield hash codes 100
and 200
respectively. Assuming the total array size is 10, both of them end up in the same bucket (100 % 10
and 200 % 10
). Chaining ensures that whenever you do map.get( "abra ka dabra" );
, you end up with the correct value associated with the key. In the case of hash map in Java, this is done by using the equals
method.
There is part of the spec that sure sounds like this... right in the "flex layout algorithm" and "main sizing" sections:
Otherwise, starting from the first uncollected item, collect consecutive items one by one until the first time that the next collected item would not fit into the flex container’s inner main size, or until a forced break is encountered. If the very first uncollected item wouldn’t fit, collect just it into the line. A break is forced wherever the CSS2.1 page-break-before/page-break-after [CSS21] or the CSS3 break-before/break-after [CSS3-BREAK] properties specify a fragmentation break.
From http://www.w3.org/TR/css-flexbox-1/#main-sizing
It sure sounds like (aside from the fact that page-breaks ought to be for printing), when laying out a potentially multi-line flex layout (which I take from another portion of the spec is one without flex-wrap: nowrap
) a page-break-after: always
or break-after: always
should cause a break, or wrap to the next line.
.flex-container {
display: flex;
flex-flow: row wrap;
}
.child {
flex-grow: 1;
}
.child.break-here {
page-break-after: always;
break-after: always;
}
However, I have tried this and it hasn't been implemented that way in...
It does work the way it sounds (to me, at least) like in:
Sample at http://codepen.io/morewry/pen/JoVmVj.
I didn't find any other requests in the bug tracker, so I reported it at https://code.google.com/p/chromium/issues/detail?id=473481.
But the topic took to the mailing list and, regardless of how it sounds, that's not what apparently they meant to imply, except I guess for pagination. So there's no way to wrap before or after a particular box in flex layout without nesting successive flex layouts inside flex children or fiddling with specific widths (e.g. flex-basis: 100%
).
This is deeply annoying, of course, since working with the Firefox implementation confirms my suspicion that the functionality is incredibly useful. Aside from the improved vertical alignment, the lack obviates a good deal of the utility of flex layout in numerous scenarios. Having to add additional wrapping tags with nested flex layouts to control the point at which a row wraps increases the complexity of both the HTML and CSS and, sadly, frequently renders order
useless. Similarly, forcing the width of an item to 100%
reduces the "responsive" potential of the flex layout or requires a lot of highly specific queries or count selectors (e.g. the techniques that may accomplish the general result you need that are mentioned in the other answers).
At least floats had clear
. Something may get added at some point or another for this, one hopes.
actually you should only put in-line elements inside the p
, so in your case ol
is better outside
Just use the array of options, to see, which option is currently selected.
$options = array( 'one', 'two', 'three' );
$output = '';
for( $i=0; $i<count($options); $i++ ) {
$output .= '<option '
. ( $_GET['sel'] == $options[$i] ? 'selected="selected"' : '' ) . '>'
. $options[$i]
. '</option>';
}
Sidenote: I would define a value to be some kind of id for each element, else you may run into problems, when two options have the same string representation.
Assuming that you have posted valid JSON,
@app.route('/api/add_message/<uuid>', methods=['GET', 'POST'])
def add_message(uuid):
content = request.json
print content['uuid']
# Return data as JSON
return jsonify(content)
You're looking for the OpenFileDialog
class.
For example:
Sub SomeButton_Click(sender As Object, e As EventArgs) Handles SomeButton.Click
Using dialog As New OpenFileDialog
If dialog.ShowDialog() <> DialogResult.OK Then Return
File.Copy(dialog.FileName, newPath)
End Using
End Sub
Install yarn an then run
yarn global add install-peerdeps
Controller trying to find the "action" value in bean but according to your example you have not set any bean name of "action". try to do name="action". @RequestParam always find in the bean class.
CSS generated content can solve this for you:
div {_x000D_
position: relative;_x000D_
}_x000D_
_x000D_
_x000D_
/* Main div for border to extend to 50% from bottom left corner */_x000D_
_x000D_
div:after {_x000D_
content: "";_x000D_
background: black;_x000D_
position: absolute;_x000D_
bottom: 0;_x000D_
left: 0;_x000D_
height: 50%;_x000D_
width: 1px;_x000D_
}
_x000D_
<div>Lorem Ipsum</div>
_x000D_
(note - the content: "";
declaration is necessary in order for the pseudo-element to render)
Solution of VS2010 is supported by VS2012. Solution of VS2012 isn't supported by VS2010 --> one-way upgrade only. VS2012 doesn't support setup projects. Find here more about VS2010/VS2012 compatibility: http://msdn.microsoft.com/en-us/library/hh266747(v=vs.110).aspx
The first column has a scrollbar on the cell right below the headers
<table>
<thead>
<th> Header 1</th>
<th> Header 2</th>
<th> Header 3</th>
</thead>
<tbody>
<tr>
<td>
<div style="width: 50; height:30; overflow-y: scroll">
Tklasdjf alksjf asjdfk jsadfl kajsdl fjasdk fljsaldk
fjlksa djflkasjdflkjsadlkf jsakldjfasdjfklasjdflkjasdlkfjaslkdfjasdf
</div>
</td>
<td>
Hello world
</td>
<td> Hello world2
</tr>
</tbody>
</table>
I had to do the same thing and this is what I wrote.I made it more flexible in my case as I had multiple group of check boxes to check.
// param: reqNum number of checkboxes to select
$.fn.checkboxValidate = function(reqNum){
var fields = this.serializeArray();
return (fields.length < reqNum) ? 'invalid' : 'valid';
}
then you can pass this function to check multiple group of checkboxes with multiple rules.
// helper function to create error
function err(msg){
alert("Please select a " + msg + " preference.");
}
$('#reg').submit(function(e){
//needs at lease 2 checkboxes to be selected
if($("input.region, input.music").checkboxValidate(2) == 'invalid'){
err("Region and Music");
}
});
Actually I'd bet this would be rather simple to achieve. It probably wouldn't operate or look exactly like what Apple has going on but could be very close.
First of all, you'd need to determine the CGRect of the UIView that you will be presenting. Once you've determine that you would just need to grab an image of the part of the UI so that it can be blurred. Something like this...
- (UIImage*)getBlurredImage {
// You will want to calculate this in code based on the view you will be presenting.
CGSize size = CGSizeMake(200,200);
UIGraphicsBeginImageContext(size);
[view drawViewHierarchyInRect:(CGRect){CGPointZero, w, h} afterScreenUpdates:YES]; // view is the view you are grabbing the screen shot of. The view that is to be blurred.
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
// Gaussian Blur
image = [image applyLightEffect];
// Box Blur
// image = [image boxblurImageWithBlur:0.2f];
return image;
}
Using the UIImage+ImageEffects
Category Apple's provided here, you'll get a gaussian blur that looks very much like the blur in iOS 7.
You could also use a box blur using the following boxBlurImageWithBlur:
UIImage category. This is based on an algorythem that you can find here.
@implementation UIImage (Blur)
-(UIImage *)boxblurImageWithBlur:(CGFloat)blur {
if (blur < 0.f || blur > 1.f) {
blur = 0.5f;
}
int boxSize = (int)(blur * 50);
boxSize = boxSize - (boxSize % 2) + 1;
CGImageRef img = self.CGImage;
vImage_Buffer inBuffer, outBuffer;
vImage_Error error;
void *pixelBuffer;
CGDataProviderRef inProvider = CGImageGetDataProvider(img);
CFDataRef inBitmapData = CGDataProviderCopyData(inProvider);
inBuffer.width = CGImageGetWidth(img);
inBuffer.height = CGImageGetHeight(img);
inBuffer.rowBytes = CGImageGetBytesPerRow(img);
inBuffer.data = (void*)CFDataGetBytePtr(inBitmapData);
pixelBuffer = malloc(CGImageGetBytesPerRow(img) * CGImageGetHeight(img));
if(pixelBuffer == NULL)
NSLog(@"No pixelbuffer");
outBuffer.data = pixelBuffer;
outBuffer.width = CGImageGetWidth(img);
outBuffer.height = CGImageGetHeight(img);
outBuffer.rowBytes = CGImageGetBytesPerRow(img);
error = vImageBoxConvolve_ARGB8888(&inBuffer, &outBuffer, NULL, 0, 0, boxSize, boxSize, NULL, kvImageEdgeExtend);
if (error) {
NSLog(@"JFDepthView: error from convolution %ld", error);
}
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextRef ctx = CGBitmapContextCreate(outBuffer.data,
outBuffer.width,
outBuffer.height,
8,
outBuffer.rowBytes,
colorSpace,
kCGImageAlphaNoneSkipLast);
CGImageRef imageRef = CGBitmapContextCreateImage (ctx);
UIImage *returnImage = [UIImage imageWithCGImage:imageRef];
//clean up
CGContextRelease(ctx);
CGColorSpaceRelease(colorSpace);
free(pixelBuffer);
CFRelease(inBitmapData);
CGImageRelease(imageRef);
return returnImage;
}
@end
Now that you are calculating the screen area to blur, passing it into the blur category and receiving a UIImage back that has been blurred, now all that is left is to set that blurred image as the background of the view you will be presenting. Like I said, this will not be a perfect match for what Apple is doing, but it should still look pretty cool.
Hope it helps.
You forgot the dot
of class selector of result class.
$(".result").hover(
function () {
$(this).addClass("result_hover");
},
function () {
$(this).removeClass("result_hover");
}
);
You can use toggleClass on hover event
$(".result").hover(function () {
$(this).toggleClass("result_hover");
});
As you say, local variables and references are stored on the stack. When a method returns, the stack pointer is simply moved back to where it was before the method started, that is, all local data is "removed from the stack". Therefore, there is no garbage collection needed on the stack, that only happens in the heap.
To answer your specific questions:
The click handler that you are trying to trigger is most likely also attached via $(document).ready()
. What is probably happening is that you are triggering the event before the handler is attached. The solution is to use setTimeout
:
$("document").ready(function() {
setTimeout(function() {
$("ul.galleria li:first-child img").trigger('click');
},10);
});
A delay of 10ms will cause the function to run immediately after all the $(document).ready()
handlers have been called.
OR you check if the element is ready:
$("document").ready(function() {
$("ul.galleria li:first-child img").ready(function() {
$(this).click();
});
});
When running a single test I usually do:
go test -run TestSomethingReallyCool ./folder1/folder2/ -v -count 1
-count 1
also ensures that the test is ran every time instead of being cached. Useful when you are testing against race conditions and have a test that fails only sometimes. In Go versions not using modules the same could be achieved by setting GOCACHE=off
but this interacts poorly with Go modules.
Adding to Rob?'s answer: in case you want to print rather large numbers, using thousand separators can be a great help (note the comma).
>>> f'{a*1000:,.2f}'
'10,123.40'
<p>Please click in the following {{link}} to verify the account</p>
function renderHTML(templatePath: string, object) {
const template = fileSystem.readFileSync(path.join(Application.staticDirectory, templatePath + '.html'), 'utf8');
return template.match(/\{{(.*?)\}}/ig).reduce((acc, binding) => {
const property = binding.substring(2, binding.length - 2);
return `${acc}${template.replace(/\{{(.*?)\}}/, object[property])}`;
}, '');
}
renderHTML(templateName, { link: 'SomeLink' })
for sure you can improve the reading template function to read as stream and compose the bytes by line to make it more efficient
This can also happen if you've been working on your scripts and functions and have been moving them around (i.e. changed the location of the definition) which could have accidentally created a looping reference.
You may find that the situation is solved if you just reset the iPython kernal to clear any old assignments:
%reset
or menu->restart terminal
Yes, a struct
is identical to a class
except for the default access level (member-wise and inheritance-wise). (and the extra meaning class
carries when used with a template)
Every functionality supported by a class is consequently supported by a struct. You'd use methods the same as you'd use them for a class.
struct foo {
int bar;
foo() : bar(3) {} //look, a constructor
int getBar()
{
return bar;
}
};
foo f;
int y = f.getBar(); // y is 3
Use print("use this bracket -sample text")
In Python 3 print "Hello world"
gives invalid syntax error.
To display string content in Python3 have to use this ("Hello world")
brackets.
Good news! Python 3.4 (released March 2014) ships with Pip. This is the best feature of any Python release. It makes the community's wealth of libraries accessible to everyone. Newbies are no longer excluded by the prohibitive difficulty of setup. In shipping with a package manager, Python joins Ruby, Nodejs, Haskell, Perl, Go--almost every other contemporary language with a majority open-source community. Thank you Python.
Of course, that doesn't mean Python packaging is problem solved. The experience remains frustrating. I discuss this at Does Python have a package/module management system?
Alas for everyone using an earlier Python. Manual instructions follow.
Follow my detailed instructions at https://stackoverflow.com/a/12476379/284795 . Essentially
Per https://pip.pypa.io/en/stable/installing.html
Download get-pip.py
, being careful to save it as a .py
file rather than .txt
. Then, run it from the command prompt.
python get-pip.py
You possibly need an administrator command prompt to do this. Follow http://technet.microsoft.com/en-us/library/cc947813(v=ws.10).aspx
For me, this installed Pip at C:\Python27\Scripts\pip.exe
. Find pip.exe
on your computer, then add its folder (eg. C:\Python27\Scripts
) to your path (Start / Edit environment variables). Now you should be able to run pip
from the command line. Try installing a package:
pip install httpie
There you go (hopefully)!
The file system of the container is in the data folder of docker, normally in /var/lib/docker. In order to start and inspect a running containers file system do the following:
hash=$(docker run busybox)
cd /var/lib/docker/aufs/mnt/$hash
And now the current working directory is the root of the container.
I finally found out how to do this! Basically you need to run adb shell
first and then while you're in the shell run su
, which will switch the shell to run as root!
$: adb shell
$: su
The one problem I still have is that sqlite3 is not installed so the command is not recognized.
To add per-class metadata, maybe an annotation might be the correct way to go.
However, you can't enforce the presence of an annotation in the interface, just as you can't enforce static members or the existence of a specific constructor.
If you want insert into specify column:
INSERT INTO table (time)
(SELECT time FROM
dblink('dbname=dbtest', 'SELECT time FROM tblB') AS t(time integer)
WHERE time > 1000
);
I believe you need to specify "Option Infer On" for this to work.
Option Infer allows the compiler to make a guess at what is being represented by your code, thus it will guess that {"stuff"} is an array of strings. With "Option Infer Off", {"stuff"} won't have any type assigned to it, ever, and so it will always fail, without a type specifier.
Option Infer is, I think On by default in new projects, but Off by default when you migrate from earlier frameworks up to 3.5.
Opinion incoming:
Also, you mention that you've got "Option Explicit Off". Please don't do this.
Setting "Option Explicit Off" means that you don't ever have to declare variables. This means that the following code will silently and invisibly create the variable "Y":
Dim X as Integer
Y = 3
This is horrible, mad, and wrong. It creates variables when you make typos. I keep hoping that they'll remove it from the language.
you can use DOM
$(this).children().first()
// is equivalent to
$(this.firstChild)