TO_DATE supports conversion to DATE datatype, which doesn't support milliseconds. If you want millisecond support in Oracle, you should look at TIMESTAMP datatype and TO_TIMESTAMP function.
Hope that helps.
Open it in word or any file editor for edit
...
-XX:MaxPermSize=256m
-Xms40m
-Xmx512m
...
Replace -Xmx512m to -Xmx1024m
Readonly datepicker with example (jquery) -
In following example you can not open calendar popup.
Check following code see normal and readonly datepicker.
Html Code-
<!doctype html>_x000D_
<html lang = "en">_x000D_
<head>_x000D_
<meta charset = "utf-8">_x000D_
<title>jQuery UI Datepicker functionality</title>_x000D_
<link href = "https://code.jquery.com/ui/1.10.4/themes/ui-lightness/jquery-ui.css"_x000D_
rel = "stylesheet">_x000D_
<script src = "https://code.jquery.com/jquery-1.10.2.js"></script>_x000D_
<script src = "https://code.jquery.com/ui/1.10.4/jquery-ui.js"></script>_x000D_
_x000D_
<!-- Javascript -->_x000D_
<script>_x000D_
$(function() {_x000D_
var currentDate=new Date();_x000D_
$( "#datepicker-12" ).datepicker({_x000D_
setDate:currentDate,_x000D_
beforeShow: function(i) { _x000D_
if ($(i).attr('readonly')) { return false; } _x000D_
}_x000D_
});_x000D_
$( "#datepicker-12" ).datepicker("setDate", currentDate);_x000D_
$("#datepicker-13").datepicker();_x000D_
$( "#datepicker-13" ).datepicker("setDate", currentDate);_x000D_
});_x000D_
</script>_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<!-- HTML --> _x000D_
<p>Readonly DatePicker: <input type = "text" id = "datepicker-12" readonly="readonly"></p>_x000D_
<p>Normal DatePicker: <input type = "text" id = "datepicker-13"></p>_x000D_
</body>_x000D_
</html>
_x000D_
I feel we may require AND
condition in where
clause of last figure of Outer Excluding JOIN
so that we get the desired result of A Union B Minus A Interaction B
.
I feel query needs to be updated to
SELECT <select_list>
FROM Table_A A
FULL OUTER JOIN Table_B B
ON A.Key = B.Key
WHERE A.Key IS NULL AND B.Key IS NULL
If we use OR
, then we will get all the results of A Union B
This is about the HTML parse mechanism.
The HTML parser will parse the HTML content from top to bottom. In your script logic,
jQuery('#datetimepicker')
will return an empty instance because the element has not loaded yet.
You can use
$(function(){ your code here });
or
$(document).ready(function(){ your code here });
to parse HTML element firstly, and then do your own script logics.
While using the date formats, you may want to keep in mind to always use MM
for months and mm
for minutes. That should resolve your problem.
For an IIS MVC 5 / Angular CLI ( Yes, I am well aware your problem is with Angular JS ) project with API I did the following:
web.config under <system.webServer>
node
<staticContent>
<remove fileExtension=".woff2" />
<mimeMap fileExtension=".woff2" mimeType="font/woff2" />
</staticContent>
<httpProtocol>
<customHeaders>
<clear />
<add name="Access-Control-Allow-Origin" value="*" />
<add name="Access-Control-Allow-Headers" value="Content-Type, atv2" />
<add name="Access-Control-Allow-Methods" value="GET, POST, PUT, DELETE, OPTIONS"/>
</customHeaders>
</httpProtocol>
global.asax.cs
protected void Application_BeginRequest() {
if (Request.Headers.AllKeys.Contains("Origin", StringComparer.OrdinalIgnoreCase) && Request.HttpMethod == "OPTIONS") {
Response.Flush();
Response.End();
}
}
That should fix your issues for both MVC and WebAPI without having to do all the other run around. I then created an HttpInterceptor in the Angular CLI project that automatically added in the the relevant header information. Hope this helps someone out in a similar situation.
Have you tried copying the schema file to the XML Schema Caching folder for VS? You can find the location of that folder by looking at VS Tools/Options/Test Editor/XML/Miscellaneous. Unfortunately, i don't know where's the schema file for the MS Enterprise Library 4.0.
Update: After installing MS Enterprise Library, it seems there's no .xsd file. However, there's a tool for editing the configuration - EntLibConfig.exe, which you can use to edit the configuration files. Also, if you add the proper config sections to your config file, VS should be able to parse the config file properly. (EntLibConfig will add these for you, or you can add them yourself). Here's an example for the loggingConfiguration section:
<configSections>
<section name="loggingConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.LoggingSettings, Microsoft.Practices.EnterpriseLibrary.Logging, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
</configSections>
You also need to add a reference to the appropriate assembly in your project.
You can do this with jQuery. Using their selectors, you can select by attributes, such as type. This does, however, require that your users have Javascript turned on, and an additional file to download, but if it works...
In case someone stumbles in on this like I did, you can filter on multiple tags by adding a comma in between, like so:
adb logcat -s "browser","webkit"
The Apache HttpClient 4.5 way:
org.apache.http.ssl.SSLContextBuilder sslContextBuilder = SSLContextBuilder.create();
sslContextBuilder.loadTrustMaterial(new org.apache.http.conn.ssl.TrustSelfSignedStrategy());
SSLContext sslContext = sslContextBuilder.build();
org.apache.http.conn.ssl.SSLConnectionSocketFactory sslSocketFactory =
new SSLConnectionSocketFactory(sslContext, new org.apache.http.conn.ssl.DefaultHostnameVerifier());
HttpClientBuilder httpClientBuilder = HttpClients.custom().setSSLSocketFactory(sslSocketFactory);
httpClient = httpClientBuilder.build();
NOTE: org.apache.http.conn.ssl.SSLContextBuilder
is deprecated and org.apache.http.ssl.SSLContextBuilder
is the new one (notice conn
missing from the latter's package name).
Another example that counts forwards or backwards, starting from Sandeep's answer.
from datetime import date, datetime, timedelta
from typing import Sequence
def range_of_dates(start_of_range: date, end_of_range: date) -> Sequence[date]:
if start_of_range <= end_of_range:
return [
start_of_range + timedelta(days=x)
for x in range(0, (end_of_range - start_of_range).days + 1)
]
return [
start_of_range - timedelta(days=x)
for x in range(0, (start_of_range - end_of_range).days + 1)
]
start_of_range = datetime.today().date()
end_of_range = start_of_range + timedelta(days=3)
date_range = range_of_dates(start_of_range, end_of_range)
print(date_range)
gives
[datetime.date(2019, 12, 20), datetime.date(2019, 12, 21), datetime.date(2019, 12, 22), datetime.date(2019, 12, 23)]
and
start_of_range = datetime.today().date()
end_of_range = start_of_range - timedelta(days=3)
date_range = range_of_dates(start_of_range, end_of_range)
print(date_range)
gives
[datetime.date(2019, 12, 20), datetime.date(2019, 12, 19), datetime.date(2019, 12, 18), datetime.date(2019, 12, 17)]
Note that the start date is included in the return, so if you want four total dates, use timedelta(days=3)
In Eclipse Ganymede (3.4.0):
If you are using an SQL query to populate your DataGrid you can do this :
Datagrid fill
Private Sub UserControl_Loaded(sender As Object, e As RoutedEventArgs)
Dim cmd As SqlCommand
Dim da As SqlDataAdapter
Dim dt As DataTable
cmd = New SqlCommand With {
.CommandText = "SELECT * FROM temp_rech_dossier_route",
.Connection = connSQLServer
}
da = New SqlDataAdapter(cmd)
dt = New DataTable("RECH")
da.Fill(dt)
DataGridRech.ItemsSource = dt.DefaultView
End Sub
Value diplay
Private Sub DataGridRech_SelectionChanged(sender As Object, e As SelectionChangedEventArgs) Handles DataGridRech.SelectionChanged
Dim val As DataRowView
val = CType(DataGridRech.SelectedItem, DataRowView)
Console.WriteLine(val.Row.Item("num_dos"))
End Sub
I know it's in VB.Net but it can be translated into C#. I put this solution here, it might be useful for someone.
Generally you can't have constant time look up and log time deletions/insertions, but if you're happy with log time look ups then you can use a SortedList.
Not sure if you'll trust my coding but I recently wrote a SortedList implementation in Java, which you can download from http://www.scottlogic.co.uk/2010/12/sorted_lists_in_java/. This implementation allows you to look up the i-th element of the list in log time.
You need to declare the variables outside the function:
Public iRaw As Integer
Public iColumn As Integer
Function find_results_idle()
iRaw = 1
iColumn = 1
Above answers are in python2. So for python 3 users I am giving this answer. You can use the bellow code:
import pandas as pd
fields = ['star_name', 'ra']
df = pd.read_csv('data.csv', skipinitialspace=True, usecols=fields)
# See the keys
print(df.keys())
# See content in 'star_name'
print(df.star_name)
$.datepicker.setDefaults({
closeText: "??",
prevText: "<??",
nextText: "??>",
currentText: "??",
monthNames: [ "??","??","??","??","??","??",
"??","??","??","??","???","???" ],
monthNamesShort: [ "??","??","??","??","??","??",
"??","??","??","??","???","???" ],
dayNames: [ "???","???","???","???","???","???","???" ],
dayNamesShort: [ "??","??","??","??","??","??","??" ],
dayNamesMin: [ "?","?","?","?","?","?","?" ],
weekHeader: "?",
dateFormat: "yy-mm-dd",
firstDay: 1,
isRTL: false,
showMonthAfterYear: true,
yearSuffix: "?"
});
the i18n code could be copied from https://github.com/jquery/jquery-ui/tree/master/ui/i18n
After Login
private void getFbInfo() {
GraphRequest request = GraphRequest.newMeRequest(
AccessToken.getCurrentAccessToken(),
new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(
JSONObject object,
GraphResponse response) {
try {
Log.d(LOG_TAG, "fb json object: " + object);
Log.d(LOG_TAG, "fb graph response: " + response);
String id = object.getString("id");
String first_name = object.getString("first_name");
String last_name = object.getString("last_name");
String gender = object.getString("gender");
String birthday = object.getString("birthday");
String image_url = "http://graph.facebook.com/" + id + "/picture?type=large";
String email;
if (object.has("email")) {
email = object.getString("email");
}
} catch (JSONException e) {
e.printStackTrace();
}
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id,first_name,last_name,email,gender,birthday"); // id,first_name,last_name,email,gender,birthday,cover,picture.type(large)
request.setParameters(parameters);
request.executeAsync();
}
__main__.py
file for?When creating a Python module, it is common to make the module execute some functionality (usually contained in a main
function) when run as the entry point of the program. This is typically done with the following common idiom placed at the bottom of most Python files:
if __name__ == '__main__':
# execute only if run as the entry point into the program
main()
You can get the same semantics for a Python package with __main__.py
, which might have the following structure:
.
+-- demo
+-- __init__.py
+-- __main__.py
To see this, paste the below into a Python 3 shell:
from pathlib import Path
demo = Path.cwd() / 'demo'
demo.mkdir()
(demo / '__init__.py').write_text("""
print('demo/__init__.py executed')
def main():
print('main() executed')
""")
(demo / '__main__.py').write_text("""
print('demo/__main__.py executed')
from demo import main
main()
""")
We can treat demo as a package and actually import it, which executes the top-level code in the __init__.py
(but not the main
function):
>>> import demo
demo/__init__.py executed
When we use the package as the entry point to the program, we perform the code in the __main__.py
, which imports the __init__.py
first:
$ python -m demo
demo/__init__.py executed
demo/__main__.py executed
main() executed
You can derive this from the documentation. The documentation says:
__main__
— Top-level script environment
'__main__'
is the name of the scope in which top-level code executes. A module’s__name__
is set equal to'__main__'
when read from standard input, a script, or from an interactive prompt.A module can discover whether or not it is running in the main scope by checking its own
__name__
, which allows a common idiom for conditionally executing code in a module when it is run as a script or withpython -m
but not when it is imported:if __name__ == '__main__': # execute only if run as a script main()
For a package, the same effect can be achieved by including a
__main__.py
module, the contents of which will be executed when the module is run with-m
.
You can also zip up this directory, including the __main__.py
, into a single file and run it from the command line like this - but note that zipped packages can't execute sub-packages or submodules as the entry point:
from pathlib import Path
demo = Path.cwd() / 'demo2'
demo.mkdir()
(demo / '__init__.py').write_text("""
print('demo2/__init__.py executed')
def main():
print('main() executed')
""")
(demo / '__main__.py').write_text("""
print('demo2/__main__.py executed')
from __init__ import main
main()
""")
Note the subtle change - we are importing main
from __init__
instead of demo2
- this zipped directory is not being treated as a package, but as a directory of scripts. So it must be used without the -m
flag.
Particularly relevant to the question - zipapp
causes the zipped directory to execute the __main__.py
by default - and it is executed first, before __init__.py
:
$ python -m zipapp demo2 -o demo2zip
$ python demo2zip
demo2/__main__.py executed
demo2/__init__.py executed
main() executed
Note again, this zipped directory is not a package - you cannot import it either.
You can also use:
var obj = {
alert: alert.bind(window)
};
obj.alert('I´m an alert!!');
You can pass as many arguments as you want, separating them by commas:
{{ path('_files_manage', {project: project.id, user: user.id}) }}
git rev-parse --show-toplevel
could be enough if executed within a git repo.
From git rev-parse
man page:
--show-toplevel
Show the absolute path of the top-level directory.
For older versions (before 1.7.x), the other options are listed in "Is there a way to get the git root directory in one command?":
git rev-parse --git-dir
That would give the path of the .git
directory.
The OP mentions:
git rev-parse --show-prefix
which returns the local path under the git repo root. (empty if you are at the git repo root)
Note: for simply checking if one is in a git repo, I find the following command quite expressive:
git rev-parse --is-inside-work-tree
And yes, if you need to check if you are in a .git
git-dir folder:
git rev-parse --is-inside-git-dir
In your terminal, navigate to home directory
cd
create file .bash_profile
touch .bash_profile
open file with TextEdit
open -e .bash_profile
insert line into TextEdit
export PATH=$PATH:/Users/username/Library/Android/sdk/platform-tools/
save file and reload file
source ~/.bash_profile is very important check if adb was set into path
adb version
It should be fine now.
For those mentioning using Object.keys(localStorage)
... don't because it won't work in Firefox (ironically because Firefox is faithful to the spec). Consider this:
localStorage.setItem("key", "value1")
localStorage.setItem("key2", "value2")
localStorage.setItem("getItem", "value3")
localStorage.setItem("setItem", "value4")
Because key, getItem and setItem are prototypal methods Object.keys(localStorage)
will only return ["key2"]
.
You are best to do something like this:
let t = [];
for (let i = 0; i < localStorage.length; i++) {
t.push(localStorage.key(i));
}
Just in case above solutions didn't work:
Get the port your process is listening to:
$ ps ax | grep python
Kill the Process
$ kill PROCESS_NAME
Had the same problem on Windows 10. The user's %Path% environment already had the required "C:\Users\ user \AppData\Roaming\npm".
path command would not show it, but it did show tons of other paths added earlier by other installations.
Turned out I needed to delete some of them from the system's PATH environment variable.
As far as I understand this happens because there's a length limit on these variables: https://software.intel.com/en-us/articles/limitation-to-the-length-of-the-system-path-variable
Probably happens often on dev machines who install lots of stuff that needs to be in the PATH.
You were looking for help on installations with pip. You can find it with the following command:
pip install --help
Running pip install -e /path/to/package
installs the package in a way, that you can edit the package, and when a new import call looks for it, it will import the edited package code. This can be very useful for package development.
time_point
objects only support arithmetic with other time_point
or duration
objects.
You'll need to convert your long
to a duration
of specified units, then your code should work correctly.
For IntelliJ 20.1 or above, on Mac OSX:
IntelliJ IDEA -> Editor -> General -> Appearance -> Show line numbers
Point to be noted: Always look for Editor
For shortcut:
? + ? + A (command + shift + A)
and click on the pop up to turn on Show line numbers
and you are good to go.
In my case, I just put the aar file in libs, and add
dependencies {
...
api fileTree(dir: 'libs', include: ['*.aar'])
...
}
in build.gradle and it works. I think it is similar with default generated dependency:
implementation fileTree(dir: 'libs', include: ['*.jar'])
Your problem here is that the dtype of 'Date' remained as str/object. You can use the parse_dates
parameter when using read_csv
import pandas as pd
file = '/pathtocsv.csv'
df = pd.read_csv(file, sep = ',', parse_dates= [col],encoding='utf-8-sig', usecols= ['Date', 'ids'],)
df['Month'] = df['Date'].dt.month
From the documentation for the parse_dates
parameter
parse_dates : bool or list of int or names or list of lists or dict, default False
The behavior is as follows:
- boolean. If True -> try parsing the index.
- list of int or names. e.g. If [1, 2, 3] -> try parsing columns 1, 2, 3 each as a separate date column.
- list of lists. e.g. If [[1, 3]] -> combine columns 1 and 3 and parse as a single date column.
- dict, e.g. {‘foo’ : [1, 3]} -> parse columns 1, 3 as date and call result ‘foo’
If a column or index cannot be represented as an array of datetimes, say because of an unparseable value or a mixture of timezones, the column or index will be returned unaltered as an object data type. For non-standard datetime parsing, use
pd.to_datetime
afterpd.read_csv
. To parse an index or column with a mixture of timezones, specifydate_parser
to be a partially-appliedpandas.to_datetime()
withutc=True
. See Parsing a CSV with mixed timezones for more.Note: A fast-path exists for iso8601-formatted dates.
The relevant case for this question is the "list of int or names" one.
col is the columns index of 'Date' which parses as a separate date column.
<TextView
android:id="@+id/phoneNumber"
android:autoLink="phone"
android:linksClickable="true"
android:text="+91 22 2222 2222"
/>
This is how you can open EditText label assigned number on dialer directly.
From what the error message complains about, it sounds like you should rather try to fix the source code. The compiler complains about difference in declaration, similar to for instance
void foo(int i);
...
void foo(double d) {
...
}
and this is not valid C code, hence the compiler complains.
Maybe your problem is that there is no prototype available when the function is used the first time and the compiler implicitly creates one that will not be static. If so the solution is to add a prototype somewhere before it is first used.
C# 7.1 or greater using Tuples
and Inferred tuple element names
(currently it works only with linq to objects
and it is not supported when expression trees are required e.g. someIQueryable.GroupBy(...)
. Github issue):
// declarative query syntax
var result =
from x in inMemoryTable
group x by (x.Column1, x.Column2) into g
select (g.Key.Column1, g.Key.Column2, QuantitySum: g.Sum(x => x.Quantity));
// or method syntax
var result2 = inMemoryTable.GroupBy(x => (x.Column1, x.Column2))
.Select(g => (g.Key.Column1, g.Key.Column2, QuantitySum: g.Sum(x => x.Quantity)));
C# 3 or greater using anonymous types
:
// declarative query syntax
var result3 =
from x in table
group x by new { x.Column1, x.Column2 } into g
select new { g.Key.Column1, g.Key.Column2, QuantitySum = g.Sum(x => x.Quantity) };
// or method syntax
var result4 = table.GroupBy(x => new { x.Column1, x.Column2 })
.Select(g =>
new { g.Key.Column1, g.Key.Column2 , QuantitySum= g.Sum(x => x.Quantity) });
Use ipdb
Install it via
pip install ipdb
Usage:
In[1]: def fun1(a):
def fun2(a):
import ipdb; ipdb.set_trace() # debugging starts here
return do_some_thing_about(b)
return fun2(a)
In[2]: fun1(1)
For executing line by line use n and for step into a function use s and to exit from debugging prompt use c.
For complete list of available commands: https://appletree.or.kr/quick_reference_cards/Python/Python%20Debugger%20Cheatsheet.pdf
This error is happening because you are just opening html documents directly from the browser. To fix this you will need to serve your code from a webserver and access it on localhost. If you have Apache setup, use it to serve your files. Some IDE's have built in web servers, like JetBrains IDE's, Eclipse...
If you have Node.Js setup then you can use http-server. Just run npm install http-server -g
and you will be able to use it in terminal like http-server C:\location\to\app.
Kirill Fuchs
Check your windows task manager and make sure you kill all chrome processes before running the command.
You can use javascript's indexOf function.
var str1 = "ABCDEFGHIJKLMNOP";
var str2 = "DEFG";
if(str1.indexOf(str2) != -1){
alert(str2 + " found");
}
I strongly advise to use Boost.FileSystem.
http://www.boost.org/doc/libs/1_38_0/libs/filesystem/doc/index.htm
In your case that would be
Use the jQuery ajaxSetup function, that can set up default values for all ajax requests.
$.ajaxSetup({
headers: {
'Authorization': "Basic XXXXX"
}
});
Yes, Mid
.
Dim sub_str
sub_str = Mid(source_str, 10, 5)
The first parameter is the source string, the second is the start index, and the third is the length.
@bobobobo: Note that VBScript strings are 1-based, not 0-based. Passing 0 as an argument to Mid
results in "invalid procedure call or argument Mid".
You can do this with PARTITION
and RANK
:
select * from
(
select MyPK, fmgcms_cpeclaimid, createdon,
Rank() over (Partition BY fmgcms_cpeclaimid order by createdon DESC) as Rank
from Filteredfmgcms_claimpaymentestimate
where createdon < 'reportstartdate'
) tmp
where Rank = 1
Instead of accepting a self parameter, class methods take a cls parameter that points to the class—and not the object instance—when the method is called. Since the class method only has access to this cls argument, it can’t modify object instance state. That would require access to self . However, class methods can still modify class state that applies across all instances of the class.
-Python Tricks
That method must be called on the Dispose
method of objects that implements the IDisposable
, in this way the GC wouldn't call the finalizer another time if someones calls the Dispose
method.
I have a Joomla Module that displays stuff... and I want to be able to share that stuff on facebook and not the Page's Title Meta Description... so my workaround is to have a secret .php file on the server that gets executed when it detects the FB's
$_SERVER['HTTP_USER_AGENT']
if($_SERVER['HTTP_USER_AGENT'] != 'facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)') {
echo 'Direct Access';
} else {
echo 'FB Accessed';
}
and pass variables with the URL that formats that particular page with the title and meta desciption of the item I want to share from my joomla module...
a name="fb_share" share_url="MYURL/sharer.php?title=TITLE&desc=DESC"
hope this helps...
Likely you have bad data that cannot convert. Dates should never be stored in varchar becasue it will allow dates such as ASAP or 02/30/2009. Use the isdate() function on your data to find the records which can't convert.
OK I tested with known good data and still got the message. You need to convert to a different format becasue it does not know if 12302009 is mmddyyyy or ddmmyyyy. The format of yyyymmdd is not ambiguous and SQL Server will convert it correctly
I got this to work:
cast( right(@date,4) + left(@date,4) as datetime)
You will still get an error message though if you have any that are in a non-standard format like '112009' or some text value or a true out of range date.
You can use something called Dash: Offline API Documentation
for Mac. For Windows and Linux you have an alternative called Zeal
.
Both of them are very similar. And you can get offline documentation for most of the APIs out there like Java, android, Angular, HTML5 etc .. almost everything.
I have also written a post on How to install Zeal on Ubuntu 14.04
new Date().toISOString().split('T')[0];
# highlighting how to use a named variable within a string:
mapping = {'a': 1, 'b': 2}
# simple method:
print(f'a: {mapping["a"]}')
print(f'b: {mapping["b"]}')
# programmatic method:
for key, value in mapping.items():
print(f'{key}: {value}')
# yields:
# a 1
# b 2
# using list comprehension
print('\n'.join(f'{key}: {value}' for key, value in dict.items()))
# yields:
# a: 1
# b: 2
Edit: Updated for python 3's f-strings...
You need to use brackets when using the fileExists
step in an if
condition or assign the returned value to a variable
Using variable:
def exists = fileExists 'file'
if (exists) {
echo 'Yes'
} else {
echo 'No'
}
Using brackets:
if (fileExists('file')) {
echo 'Yes'
} else {
echo 'No'
}
I used https://chocolatey.org/install
cup nodejs
That's all. NodeJs now updated to latest version
First you have to make sure the access level of the variable is protected or public. If the variable or property is private the page won't have access to it.
Code Behind
protected String Clients { get; set; }
Aspx
<span><%=Clients %> </span>
I strongly disagree with CaspNZ's approach.
First of all, this invisible view will be measured because it is "fill_parent". Android will try to calculate the right width of it. Instead, a small constant number (1dp) is recommended here.
Secondly, View should be replaced by a simpler class Space, a class dedicated to create empty spaces between UI component for fastest speed.
I would do this:
std::string a("Hello ");
std::string b("World");
std::string c = a + b;
Which compiles in VS2008.
I would like to correct one issue.
this.css("top", ( $(window).height() - this.height() ) / 2+$(window).scrollTop() + "px");
Above code won't work in cases when this.height
(lets assume that user resizes the screen and content is dynamic) and scrollTop() = 0
, example:
window.height
is 600
this.height
is 650
600 - 650 = -50
-50 / 2 = -25
Now the box is centered -25
offscreen.
Newer versions of Android Studio include the Device File Explorer which I've found to be a handy GUI method of downloading files from my development Nexus 7.
You Must make sure you have enabled USB Debugging on the device
Interact with the device content in the file explorer window. Right-click on a file or directory to create a new file or directory, save the selected file or directory to your machine, upload, delete, or synchronize. Double-click a file to open it in Android Studio.
Android Studio saves files you open this way in a temporary directory outside of your project. If you make modifications to a file you opened using the Device File Explorer, and would like to save your changes back to the device, you must manually upload the modified version of the file to the device.
DROP EVENT IF EXISTS xxxEVENTxxx;
CREATE EVENT xxxEVENTxxx
ON SCHEDULE
EVERY 1 DAY
STARTS (TIMESTAMP(CURRENT_DATE) + INTERVAL 1 DAY + INTERVAL 1 HOUR)
DO
--process;
¡IMPORTANT!->
SET GLOBAL event_scheduler = ON;
You can use this code without arrows.....i.e by clicking on header it automatically shows ascending and descending order of elements
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="scripts/angular.min.js"></script>
<script src="Scripts/Script.js"></script>
<style>
table {
border-collapse: collapse;
font-family: Arial;
}
td {
border: 1px solid black;
padding: 5px;
}
th {
border: 1px solid black;
padding: 5px;
text-align: left;
}
</style>
</head>
<body ng-app="myModule">
<div ng-controller="myController">
<br /><br />
<table>
<thead>
<tr>
<th>
<a href="#" ng-click="orderByField='name'; reverseSort = !reverseSort">
Name
</a>
</th>
<th>
<a href="#" ng-click="orderByField='dateOfBirth'; reverseSort = !reverseSort">
Date Of Birth
</a>
</th>
<th>
<a href="#" ng-click="orderByField='gender'; reverseSort = !reverseSort">
Gender
</a>
</th>
<th>
<a href="#" ng-click="orderByField='salary'; reverseSort = !reverseSort">
Salary
</a>
</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="employee in employees | orderBy:orderByField:reverseSort">
<td>
{{ employee.name }}
</td>
<td>
{{ employee.dateOfBirth | date:"dd/MM/yyyy" }}
</td>
<td>
{{ employee.gender }}
</td>
<td>
{{ employee.salary }}
</td>
</tr>
</tbody>
</table>
</div>
<script>
var app = angular
.module("myModule", [])
.controller("myController", function ($scope) {
var employees = [
{
name: "Ben", dateOfBirth: new Date("November 23, 1980"),
gender: "Male", salary: 55000
},
{
name: "Sara", dateOfBirth: new Date("May 05, 1970"),
gender: "Female", salary: 68000
},
{
name: "Mark", dateOfBirth: new Date("August 15, 1974"),
gender: "Male", salary: 57000
},
{
name: "Pam", dateOfBirth: new Date("October 27, 1979"),
gender: "Female", salary: 53000
},
{
name: "Todd", dateOfBirth: new Date("December 30, 1983"),
gender: "Male", salary: 60000
}
];
$scope.employees = employees;
$scope.orderByField = 'name';
$scope.reverseSort = false;
});
</script>
</body>
</html>
If you NEED to do it on your phone, I use a terminal emulator and standard linux commands.
Example:
http://www.appbrain.com/app/android-terminal-emulator/jackpal.androidterm
As noted before git-rebase(1) is your friend. Assuming the commits are in your master
branch, you would do:
git rebase --onto master~3 master~2 master
Before:
1---2---3---4---5 master
After:
1---2---4'---5' master
From git-rebase(1):
A range of commits could also be removed with rebase. If we have the following situation:
E---F---G---H---I---J topicA
then the command
git rebase --onto topicA~5 topicA~3 topicA
would result in the removal of commits F and G:
E---H'---I'---J' topicA
This is useful if F and G were flawed in some way, or should not be part of topicA. Note that the argument to --onto and the parameter can be any valid commit-ish.
I prefer to use date-fns library for date manipulating. It is really great modular and consistent tool. You can get start and end of the day this way:
var startOfDay = dateFns.startOfDay;_x000D_
var endOfDay = dateFns.endOfDay;_x000D_
_x000D_
console.log('start of day ==> ', startOfDay(new Date('2015-11-11')));_x000D_
console.log('end of day ==> ', endOfDay(new Date('2015-11-11')));
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/date-fns/1.29.0/date_fns.min.js"></script>
_x000D_
Try this if your code lies in a form:
Graphics g = this.CreateGraphics();
points = pixels * 72 / g.DpiX;
g.Dispose();
You can use SQLAlchemy's or_
function to search in more than one column (the underscore is necessary to distinguish it from Python's own or
).
Here's an example:
from sqlalchemy import or_
query = meta.Session.query(User).filter(or_(User.firstname.like(searchVar),
User.lastname.like(searchVar)))
document.getElementById("textareaID").value
$("#textareaID").val()
Cannot do the other way round (it's always good to know what you're doing)
document.getElementById("textareaID").value() // --> TypeError: Property 'value' of object #<HTMLTextAreaElement> is not a function
jQuery:
$("#textareaID").value // --> undefined
In addition, if you run a HTML document with multiple <tbody>
tags through W3C's HTML Validator, with a HTML5 DOCTYPE, it will successfully validate.
I usually use this macro to find a number of params:
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/sizeof(int))
Full example:
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/sizeof(int))
#define SUM(...) (sum(NUMARGS(__VA_ARGS__), __VA_ARGS__))
void sum(int numargs, ...);
int main(int argc, char *argv[]) {
SUM(1);
SUM(1, 2);
SUM(1, 2, 3);
SUM(1, 2, 3, 4);
return 1;
}
void sum(int numargs, ...) {
int total = 0;
va_list ap;
printf("sum() called with %d params:", numargs);
va_start(ap, numargs);
while (numargs--)
total += va_arg(ap, int);
va_end(ap);
printf(" %d\n", total);
return;
}
It is completely valid C99 code. It has one drawback, though - you cannot invoke the macro SUM()
without params, but GCC has a solution to it - see here.
So in case of GCC you need to define macros like this:
#define NUMARGS(...) (sizeof((int[]){0, ##__VA_ARGS__})/sizeof(int)-1)
#define SUM(...) sum(NUMARGS(__VA_ARGS__), ##__VA_ARGS__)
and it will work even with empty parameter list
type on terminal:
nano ~/.bash_profile
then paste:
export PATH="/Users/yourusername/.composer/vendor/bin:$PATH"
then save (press ctrl+c, press Y, press enter)
now you are ready to use "laravel" on your terminal
Something like this?
<a href="#" onClick="MyWindow=window.open('http://www.google.com','MyWindow','width=600,height=300'); return false;">Click Here</a>
After doing a git fetch
, do a git log HEAD..origin/master
to show the log entries between your last common commit and the origin's master branch. To show the diffs, use either git log -p HEAD..origin/master
to show each patch, or git diff HEAD...origin/master
(three dots not two) to show a single diff.
There normally isn't any need to undo a fetch, because doing a fetch only updates the remote branches and none of your branches. If you're not prepared to do a pull and merge in all the remote commits, you can use git cherry-pick
to accept only the specific remote commits you want. Later, when you're ready to get everything, a git pull
will merge in the rest of the commits.
Update: I'm not entirely sure why you want to avoid the use of git fetch. All git fetch does is update your local copy of the remote branches. This local copy doesn't have anything to do with any of your branches, and it doesn't have anything to do with uncommitted local changes. I have heard of people who run git fetch in a cron job because it's so safe. (I wouldn't normally recommend doing that, though.)
The methods Calendar.getTimeInMillis()
and Date.getTime()
both return milliseconds since 1.1.1970.
For current time, you can use:
long seconds = System.currentTimeMillis() / 1000l;
Server-side functions are on the server-side, client-side functions reside on the client.
What you can do is you have to set hidden form variable and submit the form, then on page use Page_Load
handler you can access value of variable and call the server method.
Public strHostName As String
Public strIPAddress As String
strHostName = System.Net.Dns.GetHostName()
strIPAddress = System.Net.Dns.GetHostEntry(strHostName).AddressList(0).ToString()
MessageBox.Show("Host Name: " & strHostName & "; IP Address: " & strIPAddress)
you can't increase the heap size dynamically.
you can request to use more by using android:largeHeap="true"
in the manifest.
also, you can use native memory (NDK & JNI)
, so you actually bypass the heap size limitation.
here are some posts i've made about it:
and here's a library i've made for it:
I use these:
/* Non-Retina */
@media screen and (-webkit-max-device-pixel-ratio: 1) {
}
/* Retina */
@media only screen and (-webkit-min-device-pixel-ratio: 1.5),
only screen and (-o-min-device-pixel-ratio: 3/2),
only screen and (min--moz-device-pixel-ratio: 1.5),
only screen and (min-device-pixel-ratio: 1.5) {
}
/* iPhone Portrait */
@media screen and (max-device-width: 480px) and (orientation:portrait) {
}
/* iPhone Landscape */
@media screen and (max-device-width: 480px) and (orientation:landscape) {
}
/* iPad Portrait */
@media screen and (min-device-width: 481px) and (max-device-width: 1024px) and (orientation:portrait) {
}
/* iPad Landscape */
@media screen and (min-device-width: 481px) and (max-device-width: 1024px) and (orientation:landscape) {
}
http://zsprawl.com/iOS/2012/03/css-for-iphone-ipad-and-retina-displays/
select count(*)
from table_emp
where DATEPART(YEAR, ARR_DATE) = '2012' AND DATEPART(MONTH, ARR_DATE) = '01'
On a recent project, some huge data structures were set up with data that was read in from a database (and hence not String constants/literals) but with a huge amount of duplication. It was a banking application, and things like the names of a modest set (maybe 100 or 200) corporations appeared all over the place. The data structures were already large, and if all those corp names had been unique objects they would have overflowed memory. Instead, all the data structures had references to the same 100 or 200 String objects, thus saving lots of space.
Another small advantage of interned Strings is that ==
can be used (successfully!) to compare Strings if all involved strings are guaranteed to be interned. Apart from the leaner syntax, this is also a performance enhancement. But as others have pointed out, doing this harbors a great risk of introducing programming errors, so this should be done only as a desparate measure of last resort.
The downside is that interning a String takes more time than simply throwing it on the heap, and that the space for interned Strings may be limited, depending on the Java implementation. It's best done when you're dealing with a known reasonable number of Strings with many duplications.
I was getting the same error when I used this code to update the record:
@mysqli_query($dbc,$query or die()))
After removing or die
, it started working properly.
Import this in to app.module.ts
import {HttpClientModule} from '@angular/common/http';
and add this one in imports
HttpClientModule
I'll just try to answer the question but my examples very simple because I'm new at mvc. Hope this help somebody.
[HttpPost] ///This function is in my controller class
public ActionResult Delete(string txtDelete)
{
int _id = Convert.ToInt32(txtDelete); // put your code
}
This code is in my controller's cshtml
> @using (Html.BeginForm("Delete", "LibraryManagement"))
{
<button>Delete</button>
@Html.Label("Enter an ID number");
@Html.TextBox("txtDelete") }
Just make sure the textbox name and your controller's function input are the same name and type(string).This way, your function get the textbox input.
<location path="ForAll/Demo.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
In Addition: If you want to write something on that folder through website , you have to give IIS_User permission to the folder
I had the same problem with Versions displaying the same message. I simply right clicked the offending files and selected 'Revert...' from the right-click menu and all was good.
Basically Versions (actually Subversion) thinks you still want to add the file, but it cannot find it because you deleted it in the file system. The Revert option tells Subversion to forget about adding it.
Make sure you evaluate the DataNucleus implementation of JDO. We started out with Hibernate because it appeared to be so popular but pretty soon realized that it's not a 100% transparent persistence solution. There are too many caveats and the documentation is full of 'if you have this situation then you must write your code like this' that took away the fun of freely modeling and coding however we want. JDO has never caused me to adjust my code or my model to get it to 'work properly'. I can just design and code simple POJOs as if I was going to use them 'in memory' only, yet I can persist them transparently.
The other advantage of JDO/DataNucleus over hibernate is that it doesn't have all the run time reflection overhead and is more memory efficient because it uses build time byte code enhancement (maybe add 1 sec to your build time for a large project) rather than hibernate's run time reflection powered proxy pattern.
Another thing you might find annoying with Hibernate is that a reference you have to what you think is the object... it's often a 'proxy' for the object. Without the benefit of byte code enhancement the proxy pattern is required to allow on demand loading (i.e. avoid pulling in your entire object graph when you pull in a top level object). Be prepared to override equals and hashcode because the object you think you're referencing is often just a proxy for that object.
Here's an example of frustrations you'll get with Hibernate that you won't get with JDO:
http://blog.andrewbeacock.com/2008/08/how-to-implement-hibernate-safe-equals.html
http://burtbeckwith.com/blog/?p=53
If you like coding to 'workarounds' then, sure, Hibernate is for you. If you appreciate clean, pure, object oriented, model driven development where you spend all your time on modeling, design and coding and none of it on ugly workarounds then spend a few hours evaluating JDO/DataNucleus. The hours invested will be repaid a thousand fold.
For quite some time now DataNucleus' implements the JPA persistence standard in addition to the JDO persistence standard so porting existing JPA projects from Hibernate to DataNucleus should be very straight forward and you can get all of the above mentioned benefits of DataNucleus with very little code change, if any. So in terms of the question, the choice of a particular standard, JPA (RDBMS only) vs JDO (RDBMS + No SQL + ODBMSes + others), DataNucleus supports both, Hibernate is restricted to JPA only.
Another issue to consider when choosing an ORM is the efficiency of its dirty checking mechanism - that becomes very important when it needs to construct the SQL to update the objects that have changed in the current transaction - especially when there are a lot of objects. There is a detailed technical description of Hibernate's dirty checking mechanism in this SO answer: JPA with HIBERNATE insert very slow
If using Spring's XML schema based configuration, setup in the Spring context like this:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jee="http://www.springframework.org/schema/jee" xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd">
...
<jee:jndi-lookup id="dbDataSource"
jndi-name="jdbc/DatabaseName"
expected-type="javax.sql.DataSource" />
Alternatively, setup using simple bean configuration like this:
<bean id="DatabaseName" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="java:comp/env/jdbc/DatabaseName"/>
</bean>
You can declare the JNDI resource in tomcat's server.xml using something like this:
<GlobalNamingResources>
<Resource name="jdbc/DatabaseName"
auth="Container"
type="javax.sql.DataSource"
username="dbUser"
password="dbPassword"
url="jdbc:postgresql://localhost/dbname"
driverClassName="org.postgresql.Driver"
initialSize="20"
maxWaitMillis="15000"
maxTotal="75"
maxIdle="20"
maxAge="7200000"
testOnBorrow="true"
validationQuery="select 1"
/>
</GlobalNamingResources>
And reference the JNDI resource from Tomcat's web context.xml like this:
<ResourceLink name="jdbc/DatabaseName"
global="jdbc/DatabaseName"
type="javax.sql.DataSource"/>
Reference documentation:
Edit: This answer has been updated for Tomcat 8 and Spring 4. There have been a few property name changes for Tomcat's default datasource resource pool setup.
People have recommended MailChimp which is a good vendor for bulk email. If you're looking for a good vendor for transactional email, I might be able to help.
Over the past 6 months, we used four different SMTP vendors with the goal of figuring out which was the best one.
Here's a summary of what we found...
Conclusion
SendGrid was the best with Postmark coming in second place. We never saw any hesitation in send times with either of those two - in some cases we sent several hundred emails at once - and they both have the best ROI, given a solid featureset.
This line of yours:
<%@ page import="pageNumber.*, java.util.*, java.io.*" %>
Requires an @
symbol before %
like this:
<%@ page import="pageNumber.*, java.util.*, java.io.*" @%>
You should use openssl_encrypt()
function.
Since none of the answers above actually explain what happened, I decided to chime in and bring some more details to this issue.
Yes, the solution is to run the MySQL Upgrade command, as follows: mysql_upgrade -u root -p --force
, but what happened?
The root cause for this issue is the corruption of performance_schema
, which can be caused by:
This issue might have been present on your database even before the patch, but what happened on MySQL 5.7.8 specifically is that the flag show_compatibility_56
changed its default value from being turned ON
by default, to OFF
. This flag controls how the engine behaves on queries for setting and reading variables (session and global) on various MySQL Versions.
Because MySQL 5.7+ started to read and store these variables on performance_schema
instead of on information_schema
, this flag was introduced as ON
for the first releases to reduce the blast radius of this change and to let users know about the change and get used to it.
OK, but why does the connection fail? Because depending on the driver you are using (and its configuration), it may end up running commands for every new connection initiated to the database (like show variables
, for instance). Because one of these commands can try to access a corrupted performance_schema
, the whole connection aborts before being fully initiated.
So, in summary, you may (it's impossible to tell now) have had performance_schema
either missing or corrupted before patching. The patch to 5.7.8 then forced the engine to read your variables out of performance_schema
(instead of information_schema
, where it was reading it from because of the flag being turned ON
). Since performance_schema
was corrupted, the connections are failing.
Running MySQL upgrade is the best approach, despite the downtime. Turning the flag on is one option, but it comes with its own set of implications as it was pointed out on this thread already.
Both should work, but weight the consequences and know your choices :)
Using C programming on a Linux variant as a base case for examples.
Lock:
• Usually a very simple construct binary in operation either locked or unlocked
• No concept of thread ownership, priority, sequencing etc.
• Usually a spin lock where the thread continuously checks for the locks availability.
• Usually relies on atomic operations e.g. Test-and-set, compare-and-swap, fetch-and-add etc.
• Usually requires hardware support for atomic operation.
File Locks:
• Usually used to coordinate access to a file via multiple processes.
• Multiple processes can hold the read lock however when any single process holds the write lock no other process is allowed to acquire a read or write lock.
• Example : flock, fcntl etc..
Mutex:
• Mutex function calls usually work in kernel space and result in system calls.
• It uses the concept of ownership. Only the thread that currently holds the mutex can unlock it.
• Mutex is not recursive (Exception: PTHREAD_MUTEX_RECURSIVE).
• Usually used in Association with Condition Variables and passed as arguments to e.g. pthread_cond_signal, pthread_cond_wait etc.
• Some UNIX systems allow mutex to be used by multiple processes although this may not be enforced on all systems.
Semaphore:
• This is a kernel maintained integer whose values is not allowed to fall below zero.
• It can be used to synchronize processes.
• The value of the semaphore may be set to a value greater than 1 in which case the value usually indicates the number of resources available.
• A semaphore whose value is restricted to 1 and 0 is referred to as a binary semaphore.
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
app:elevation="6dp"
app:backgroundTint="@color/colorAccent"
app:pressedTranslationZ="12dp"
android:layout_margin="@dimen/fab_margin"
android:src="@drawable/add"/>
Note that you add colors in res/values/color.xml and include the attribute in your fab
app:backgroundTint="@color/addedColor"
Newest, shortest, least readable version (55 chars)
^((25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])(\.(?!$)|$)){4}$
This version looks for the 250-5 case, after that it cleverly ORs all the possible cases for 200-249
100-199
10-99
cases. Notice that the |)
part is not a mistake, but actually ORs the last case for the 0-9 range. I've also omitted the ?:
non-capturing group part as we don't really care about the captured items, they would not be captured either way if we didn't have a full-match in the first place.
Old and shorter version (less readable) (63 chars)
^(?:(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])(\.(?!$)|$)){4}$
Older (readable) version (70 chars)
^(?:(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])(\.(?!$)|$)){4}$
It uses the negative lookahead (?!)
to remove the case where the ip might end with a .
Oldest answer (115 chars)
^(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\.){3}
(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])$
I think this is the most accurate and strict regex, it doesn't accept things like 000.021.01.0.
it seems like most other answers here do and require additional regex to reject cases similar to that one - i.e. 0
starting numbers and an ip that ends with a .
In addition to @chanafdo answer, you can use route name
<a href="{{route('login')}}">login here</a>
with parameter in route name
when go to url like URI: profile/{id}
<a href="{{route('profile', ['id' => 1])}}">login here</a>
<a href="<?php echo route('login')?>">login here</a>
with parameter in route name
when go to url like URI: profile/{id}
<a href="<?php echo route('profile', ['id' => 1])?>">login here</a>
As of laravel 5.2 you can use @php @endphp
to create as <?php ?>
in laravel blade.
Using blade your personal opinion but I suggest to use it. Learn it.
It has many wonderful features as template inheritance, Components & Slots,subviews etc...
Solved..! September 5, 2020.
It is working very well. In this way, you do not need to have permission from user. You can open directly phone calling part.
Trick point, use ACTION_DIAL instead of ACTION_CALL.
private void callPhoneNumber() {
String phone = "03131693169";
Intent callIntent = new Intent(Intent.ACTION_DIAL);
callIntent.setData(Uri.parse("tel:" + phone));
startActivity(callIntent);
}
For more question, ask me on Instagram: @canerkaseler
I just want to add that orderby is way more useful.
Why? Because I can do this:
Dim thisAccountBalances = account.DictOfBalances.Values.ToList
thisAccountBalances.ForEach(Sub(x) x.computeBalanceOtherFactors())
thisAccountBalances=thisAccountBalances.OrderBy(Function(x) x.TotalBalance).tolist
listOfBalances.AddRange(thisAccountBalances)
Why complicated comparer? Just sort based on a field. Here I am sorting based on TotalBalance.
Very easy.
I can't do that with sort. I wonder why. Do fine with orderBy.
As for speed it's always O(n).
You could try AsyncMVVM.
Page2.xaml:
<PhoneApplicationPage x:Class="Page2"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
<ListView ItemsSource="{Binding Writings}" />
</PhoneApplicationPage>
Page2.xaml.cs:
public partial class Page2
{
InitializeComponent();
DataContext = new ViewModel2();
}
ViewModel2.cs:
public class ViewModel2: AsyncBindableBase
{
public IEnumerable<Writing> Writings
{
get { return Property.Get(GetWritingsAsync); }
}
private async Task<IEnumerable<Writing>> GetWritingsAsync()
{
string jsonData = await JsonDataManager.GetJsonAsync("1");
JObject obj = JObject.Parse(jsonData);
JArray array = (JArray)obj["posts"];
for (int i = 0; i < array.Count; i++)
{
Writing writing = new Writing();
writing.content = JsonDataManager.JsonParse(array, i, "content");
writing.date = JsonDataManager.JsonParse(array, i, "date");
writing.image = JsonDataManager.JsonParse(array, i, "url");
writing.summary = JsonDataManager.JsonParse(array, i, "excerpt");
writing.title = JsonDataManager.JsonParse(array, i, "title");
yield return writing;
}
}
}
Display ALL info about each submodule using built-in git functions:
git submodule foreach -q git config -l
Or just URL-s:
git submodule foreach -q git config remote.origin.url
Stolen from here.
alert("Selected value is: "+$(".leaderMultiSelctdropdown").select2("val"));
alternatively, if you used a regular selectbox as base, you should be able to use the normal jquery call, too:
alert("Selected value is: "+$(".leaderMultiSelctdropdown").val());
both return an array of the selected keys.
Go to your project's properties and set the start page property.
According to the documentation: https://jinja.palletsprojects.com/en/2.10.x/templates/#line-statements you may use multi-line statements as long as the code has parens/brackets around it. Example:
{% if ( (foo == 'foo' or bar == 'bar') and
(fooo == 'fooo' or baar == 'baar') ) %}
<li>some text</li>
{% endif %}
Edit: Using line_statement_prefix = '#'
* the code would look like this:
# if ( (foo == 'foo' or bar == 'bar') and
(fooo == 'fooo' or baar == 'baar') )
<li>some text</li>
# endif
*Here's an example of how you'd specify the line_statement_prefix
in the Environment
:
from jinja2 import Environment, PackageLoader, select_autoescape
env = Environment(
loader=PackageLoader('yourapplication', 'templates'),
autoescape=select_autoescape(['html', 'xml']),
line_statement_prefix='#'
)
Or using Flask:
from flask import Flask
app = Flask(__name__, instance_relative_config=True, static_folder='static')
app.jinja_env.filters['zip'] = zip
app.jinja_env.line_statement_prefix = '#'
Here is very sample solution for check class (hasClass) in Javascript:
const mydivclass = document.querySelector('.mydivclass');
// if 'hasClass' is exist on 'mydivclass'
if(mydivclass.classList.contains('hasClass')) {
// do something if 'hasClass' is exist.
}
All previous answers are correct, here is one more and easy way to do it. For example, create a Dict data structure to serialize and deserialize an object
(Notice None is Null in python and I'm intentionally using this to demonstrate how you can store null and convert it to json null)
import json
print('serialization')
myDictObj = { "name":"John", "age":30, "car":None }
##convert object to json
serialized= json.dumps(myDictObj, sort_keys=True, indent=3)
print(serialized)
## now we are gonna convert json to object
deserialization=json.loads(serialized)
print(deserialization)
Ruby 2.1.0 introduced a to_h
method on Array that does what you require if your original array consists of arrays of key-value pairs: http://www.ruby-doc.org/core-2.1.0/Array.html#method-i-to_h.
[[:foo, :bar], [1, 2]].to_h
# => {:foo => :bar, 1 => 2}
The greater sign ( > ) selector in CSS means that the selector on the right is a direct descendant / child of whatever is on the left.
An example:
article > p { }
Means only style a paragraph that comes after an article.
This happened to me when I branched code. To fix it I right-clicked my project in Visual Studio, chose manage Nu-get packages, uninstalled EntityFramework, then re-installed it. Problem solved
$(".hit").click(function(){
var values = [];
var table = $(this).closest("table");
table.find("tr").each(function() {
values.push($(this).find("td:first").html());
});
alert(values);
});
You should avoid $(".hit")
it's really inefficient. Try using event delegation instead.
Add following gems in your gem file
gem 'therubyracer'
gem 'execjs'
and run
bundle install
OR
Install Node.js to fix it permanently for all projects.
Your object should implement the IComparable interface.
With it your class becomes a new function called CompareTo(T other)
. Within this function you can make any comparison between the current and the other object and return an integer value about if the first is greater, smaller or equal to the second one.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.ComponentModel;
public partial class Default3 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
DataTable dt = new DataTable();
dt = lstEmployee.ConvertToDataTable();
}
public static DataTable ConvertToDataTable<T>(IList<T> list) where T : class
{
try
{
DataTable table = CreateDataTable<T>();
Type objType = typeof(T);
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(objType);
foreach (T item in list)
{
DataRow row = table.NewRow();
foreach (PropertyDescriptor property in properties)
{
if (!CanUseType(property.PropertyType)) continue;
row[property.Name] = property.GetValue(item) ?? DBNull.Value;
}
table.Rows.Add(row);
}
return table;
}
catch (DataException ex)
{
return null;
}
catch (Exception ex)
{
return null;
}
}
private static DataTable CreateDataTable<T>() where T : class
{
Type objType = typeof(T);
DataTable table = new DataTable(objType.Name);
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(objType);
foreach (PropertyDescriptor property in properties)
{
Type propertyType = property.PropertyType;
if (!CanUseType(propertyType)) continue;
//nullables must use underlying types
if (propertyType.IsGenericType && propertyType.GetGenericTypeDefinition() == typeof(Nullable<>))
propertyType = Nullable.GetUnderlyingType(propertyType);
//enums also need special treatment
if (propertyType.IsEnum)
propertyType = Enum.GetUnderlyingType(propertyType);
table.Columns.Add(property.Name, propertyType);
}
return table;
}
private static bool CanUseType(Type propertyType)
{
//only strings and value types
if (propertyType.IsArray) return false;
if (!propertyType.IsValueType && propertyType != typeof(string)) return false;
return true;
}
}
its pretty easy if u just want to redirect to a url without any status codes or anything like that u can simple say
from flask import Flask, redirect
app = Flask(__name__)
@app.route('/')
def redirect_to_link():
# return redirect method, NOTE: replace google.com with the link u want
return redirect('https://google.com')
You may want to have a look at https://isocpp.org/wiki/faq/pointers-to-members#fnptr-vs-memfnptr-types, especially [33.1] Is the type of "pointer-to-member-function" different from "pointer-to-function"?
Use ThisWorkbook
which will refer to the original workbook which holds the code.
Alternatively at code start
Dim Wb As Workbook
Set Wb = ActiveWorkbook
sample code that activates all open books before returning to ThisWorkbook
Sub Test()
Dim Wb As Workbook
Dim Wb2 As Workbook
Set Wb = ThisWorkbook
For Each Wb2 In Application.Workbooks
Wb2.Activate
Next
Wb.Activate
End Sub
To complement ruslik's answer, in C++14 you can use this construction:
delete std::exchange(heapObject, nullptr);
Apparently, org.json.simple.JSONArray
implements a raw Iterator. This means that each element is considered to be an Object
. You can try to cast:
for(Object o: arr){
if ( o instanceof JSONObject ) {
parse((JSONObject)o);
}
}
This is how things were done back in Java 1.4 and earlier.
decimal value = 0.00M;
value = Convert.ToDecimal(12345.12345);
Console.WriteLine(".ToString(\"C\") Formates With Currency $ Sign");
Console.WriteLine(value.ToString("C"));
//OutPut : $12345.12
Console.WriteLine(value.ToString("C1"));
//OutPut : $12345.1
Console.WriteLine(value.ToString("C2"));
//OutPut : $12345.12
Console.WriteLine(value.ToString("C3"));
//OutPut : $12345.123
Console.WriteLine(value.ToString("C4"));
//OutPut : $12345.1234
Console.WriteLine(value.ToString("C5"));
//OutPut : $12345.12345
Console.WriteLine(value.ToString("C6"));
//OutPut : $12345.123450
Console.WriteLine();
Console.WriteLine(".ToString(\"F\") Formates With out Currency Sign");
Console.WriteLine(value.ToString("F"));
//OutPut : 12345.12
Console.WriteLine(value.ToString("F1"));
//OutPut : 12345.1
Console.WriteLine(value.ToString("F2"));
//OutPut : 12345.12
Console.WriteLine(value.ToString("F3"));
//OutPut : 12345.123
Console.WriteLine(value.ToString("F4"));
//OutPut : 12345.1234
Console.WriteLine(value.ToString("F5"));
//OutPut : 12345.12345
Console.WriteLine(value.ToString("F6"));
//OutPut : 12345.123450
Console.Read();
First find the version you are using with the Git command git --version
. If you have a newer version than 1.7.10, then simply use this command:
git config --global credential.helper wincred
Then do the git fetch
, then it prompts for the password update.
Now, it won't prompt for the password for multiple times in Git.
Set objShell = WScript.CreateObject("WScript.Shell")
skey = "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{9A25302D-30C0-39D9-BD6F-21E6EC160475}\"
with CreateObject("WScript.Shell")
on error resume next ' turn off error trapping
sValue = .regread(sKey) ' read attempt
bFound = (err.number = 0) ' test for success
end with
if bFound then
msgbox "exists"
else
msgbox "not exists"
End If
As an update for fedora user , alternatives set current java directory to /usr/java/default
so you have to set your JAVA_HOME to /usr/java/default to always have alternatives curent selection in your classpath
HTH !
If you want to imitate click on the DOM element like this:
<a (click)="showLogin($event)">login</a>
and have something like this on the page:
<li ngbDropdown>
<a ngbDropdownToggle id="login-menu">
...
</a>
</li>
your function in component.ts
should be like this:
showLogin(event) {
event.stopPropagation();
document.getElementById('login-menu').click();
}
You may want to also look into using Task
instead of background workers.
The easiest way to do this is in your example is Task.Run(InitializationThread);
.
There are several benefits to using tasks instead of background workers. For example, the new async/await features in .net 4.5 use Task
for threading. Here is some documentation about Task
https://docs.microsoft.com/en-us/dotnet/api/system.threading.tasks.task
Today old-school include guards are as fast as a #pragma once. Even if the compiler doesn't treat them specially, it will still stop when it sees #ifndef WHATEVER and WHATEVER is defined. Opening a file is dirt cheap today. Even if there were to be an improvement, it would be in the order of miliseconds.
I simply just don't use #pragma once, as it has no benefit. To avoid clashing with other include guards I use something like: CI_APP_MODULE_FILE_H --> CI = Company Initials; APP = Application name; the rest is self-explanatory.
<TextView android:layout_width="match_parent"
android:layout_height="wrap_content"
android:focusable="true"
android:focusableInTouchMode="true">
<requestFocus/>
</TextView>
<EditText android:layout_width="match_parent"
android:layout_height="wrap_content"/>
As Nora suggests, you can use the python simple server.
Navigate to the folder from which you want to serve your html page, then execute python -m SimpleHTTPServer
.
Now you can use your web-browser and navigate to http://localhost:8000/ where your page is being served.
If your page is named index.html then the server automatically loads that for you. If you want to access any other page, you'll need to browse to http://localhost:8000/{your page name}
Very often this error appears if you use incompatible versions of Selenium and ChromeDriver.
Selenium 3.0.1 for Maven project:
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>3.0.1</version>
</dependency>
ChromeDriver 2.27: https://sites.google.com/a/chromium.org/chromedriver/downloads
I think rgba is the quickest and easiest!
background: rgba(225, 225, 225, .8)
From Python version 2.6 on you can use multiple arguments to set.intersection()
, like
u = set.intersection(s1, s2, s3)
If the sets are in a list, this translates to:
u = set.intersection(*setlist)
where *a_list
is list expansion
Note that set.intersection
is not a static method, but this uses the functional notation to apply intersection of the first set with the rest of the list. So if the argument list is empty this will fail.
This is an interesting and insightful discussion with so many experts contributing. I feel this post should be looped back from within the Android development main website, because it does revolve around one of the core designs of the Android OS.
I would also like to add my two cents here.
So far I have been impressed with Android's way of handling lifecycle events, bringing the concept of a web-like experience to native apps.
Having said that I still believe that there should be a Quit button. Why? ... not for me or Ted or any of the tech gurus here, but for the sole purpose of meeting an end user demand.
Though I am not a big fan of Windows, but long back they introduced a concept that most end users are used to (an X button) ... "I want to quit running a widget when 'I' want to".
That does not mean someone (OS, developer?) will take care of that at its/his/her own discretion... it simply means "where is my Red X button that I am used to". My action should be analogous to 'end a call on pressing of a button', 'turn off the device by pressing a button', and so on and so forth ... it's a perception. It brings a satisfaction per se that my action indeed achieve its purpose.
Even though a developer can spoof this behavior using suggestions given here, the perception still remains i.e. an application should completely cease to function (now), by an independent, trusted and neutral source (OS) on demand from the end user.
I would say the best reference is Format for Literal IPv6 Addresses in URL's where usage of [] is defined.
Also, if it is for programming and code, specifically Java, I would suggest this readsClass for Inet6Address java/net/URL definition where usage of Inet4 address in Inet6 connotation and other cases are presented in details. For my case, IPv4-mapped address Of the form::ffff:w.x.y.z, for IPv6 address is used to represent an IPv4 address also solved my problem. It allows the native program to use the same address data structure and also the same socket when communicating with both IPv4 and IPv6 nodes. This is the case on Amazon cloud Linux boxes default setup.
Put this in a file and make it executable:
#!/bin/bash
start=`grep -n $1 < $3 | head -n1 | cut -d: -f1; exit ${PIPESTATUS[0]}`
if [ ${PIPESTATUS[0]} -ne 0 ]; then
echo "couldn't find start pattern!" 1>&2
exit 1
fi
stop=`tail -n +$start < $3 | grep -n $2 | head -n1 | cut -d: -f1; exit ${PIPESTATUS[1]}`
if [ ${PIPESTATUS[0]} -ne 0 ]; then
echo "couldn't find end pattern!" 1>&2
exit 1
fi
stop=$(( $stop + $start - 1))
sed "$start,$stop!d" < $3
Execute the file with arguments (NOTE that the script does not handle spaces in arguments!):
To use with your example, use arguments: 1234 5555 myfile.txt
Includes lines with starting and stopping pattern.
OOP Style : At first connection with database.
<?php
class database
{
public $host = "localhost";
public $user = "root";
public $pass = "";
public $db = "db";
public $link;
public function __construct()
{
$this->connect();
}
private function connect()
{
$this->link = new mysqli($this->host, $this->user, $this->pass, $this->db);
return $this->link;
}
public function select($query)
{
$result = $this->link->query($query) or die($this->link->error.__LINE__);
if($result->num_rows>0)
{
return $result;
}
else
{
return false;
}
}
?>
Then :
<?php
$db = new database();
$query = "select * from data";
$result = $db->select($query);
echo "<table>";
echo "<tr>";
echo "<th>Name </th>";
echo "<th>Roll </th>";
echo "</tr>";
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td> $row[name]</td>";
echo "<td> $row[roll]</td>";
echo "</tr>";
}
echo "</table>";
?>
Do you really need to do that programmatically?
Just considering the title: You could use a ShapeDrawable as android:background…
For example, let's define res/drawable/my_custom_background.xml
as:
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners
android:radius="2dp"
android:topRightRadius="0dp"
android:bottomRightRadius="0dp"
android:bottomLeftRadius="0dp" />
<stroke
android:width="1dp"
android:color="@android:color/white" />
</shape>
and define android:background="@drawable/my_custom_background".
I've not tested but it should work.
Update:
I think that's better to leverage the xml shape drawable resource power if that fits your needs. With a "from scratch" project (for android-8), define res/layout/main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/border"
android:padding="10dip" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Hello World, SOnich"
/>
[... more TextView ...]
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Hello World, SOnich"
/>
</LinearLayout>
and a res/drawable/border.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<stroke
android:width="5dip"
android:color="@android:color/white" />
</shape>
Reported to work on a gingerbread device. Note that you'll need to relate android:padding
of the LinearLayout to the android:width
shape/stroke's value. Please, do not use @android:color/white
in your final application but rather a project defined color.
You could apply android:background="@drawable/border" android:padding="10dip"
to each of the LinearLayout from your provided sample.
As for your other posts related to display some circles as LinearLayout's background, I'm playing with Inset/Scale/Layer drawable resources (see Drawable Resources for further information) to get something working to display perfect circles in the background of a LinearLayout but failed at the moment…
Your problem resides clearly in the use of getBorder.set{Width,Height}(100);
. Why do you do that in an onClick method?
I need further information to not miss the point: why do you do that programmatically? Do you need a dynamic behavior? Your input drawables are png or ShapeDrawable is acceptable? etc.
To be continued (maybe tomorrow and as soon as you provide more precisions on what you want to achieve)…
Mongodb was not running but I had the module for node.js The database path was missing. Fix was create new folder in the root so run
sudo mkdir -p /data/db/
then run
sudo chown id -u
/data/db
Labelling the attribute is ideal way. MACRO leads to sometime confusion. and by using void(x),we are adding an overhead in processing.
If not using input argument, use
void foo(int __attribute__((unused))key)
{
}
If not using the variable defined inside the function
void foo(int key)
{
int hash = 0;
int bkt __attribute__((unused)) = 0;
api_call(x, hash, bkt);
}
Now later using the hash variable for your logic but doesn’t need bkt. define bkt as unused, otherwise compiler says'bkt set bt not used".
NOTE: This is just to suppress the warning not for optimization.
After some research I have found method that doesn't require maven or any 3rd party extension/program.
You can use "Class-Path" in your manifest file.
For example:
Create manifest file MANIFEST.MF
Manifest-Version: 1.0
Created-By: Bundle
Class-Path: ./custom_lib.jar
Main-Class: YourMainClass
Compile all your classes and run jar cfm Testing.jar MANIFEST.MF *.class custom_lib.jar
c
stands for create archive
f
indicates that you want to specify file
v
is for verbose input
m
means that we will pass custom manifest file
Be sure that you included lib in jar package. You should be able to run jar in the normal way.
based on: http://www.ibm.com/developerworks/library/j-5things6/
all other information you need about the class-path do you find here
var input = "12342";
var output = input.Substring(0, input.Length - 1);
or
var output = input.Remove(input.Length - 1);
After further reading, and confirmation from Linus G Thiel above, I found I simply had to,
./node_modules/.bin
to my PATH
There are at least 2 different methods of invoking functions on radio button selection:
1) Using ng-change
directive:
<input type="radio" ng-model="value" value="foo" ng-change='newValue(value)'>
and then, in a controller:
$scope.newValue = function(value) {
console.log(value);
}
Here is the jsFiddle: http://jsfiddle.net/ZPcSe/5/
2) Watching the model for changes. This doesn't require anything special on the input level:
<input type="radio" ng-model="value" value="foo">
but in a controller one would have:
$scope.$watch('value', function(value) {
console.log(value);
});
And the jsFiddle: http://jsfiddle.net/vDTRp/2/
Knowing more about your the use case would help to propose an adequate solution.
Use boost::hash
#include <boost\functional\hash.hpp>
...
std::string a = "ABCDE";
size_t b = boost::hash_value(a);
Create a new sub with the following code and assign it to your button. Change the "DeleteProcess" to the name of your code to do the deletion. This will pop up a box with OK or Cancel and will call your delete sub if you hit ok and not if you hit cancel.
Sub AreYouSure()
Dim Sure As Integer
Sure = MsgBox("Are you sure?", vbOKCancel)
If Sure = 1 Then Call DeleteProcess
End Sub
Jesse
@Controller
public abstract class AbstractController {
@ModelAttribute("loggedUser")
public User getLoggedUser() {
return (User)SecurityContextHolder.getContext().getAuthentication().getPrincipal();
}
}
Check out std::stringstream
.
export IGNORE_WARNINGS=1
It does display warnings, but continues with the build
In case anyone is looking for an updated answer to this one, it looks like there is an existing pull request to get this into Rails: https://github.com/rails/rails/pull/9052.
Thanks to @j-mcnally's monkey patch for ActiveRecord (https://gist.github.com/j-mcnally/250eaaceef234dd8971b) you can do the following:
Person.where(name: 'John').or.where(last_name: 'Smith').all
Even more valuable is the ability to chain scopes with OR
:
scope :first_or_last_name, ->(name) { where(name: name.split(' ').first).or.where(last_name: name.split(' ').last) }
scope :parent_last_name, ->(name) { includes(:parents).where(last_name: name) }
Then you can find all Persons with first or last name or whose parent with last name
Person.first_or_last_name('John Smith').or.parent_last_name('Smith')
Not the best example for the use of this, but just trying to fit it with the question.
For creating a new file
x1 = np.random.randn(100, 2)
df1 = pd.DataFrame(x1)
with pd.ExcelWriter('sample.xlsx') as writer:
df1.to_excel(writer, sheet_name='x1')
For appending to the file, use the argument mode='a'
in pd.ExcelWriter
.
x2 = np.random.randn(100, 2)
df2 = pd.DataFrame(x2)
with pd.ExcelWriter('sample.xlsx', engine='openpyxl', mode='a') as writer:
df2.to_excel(writer, sheet_name='x2')
Default is mode ='w'
.
See documentation.
I did it by setting an AncesterAdded event on the textField and the requesting focus in the window.
I was helped by a method with a function check. This method works in IE8
if(typeof e.preventDefault == 'function'){
e.preventDefault();
} else {
e.returnValue = false;
}
Instead of
extends Fragment
use
extends android.support.v4.app.Fragment
This works for me. for *API14 and above
I had similar issue. I was not able to use value="something"
to display and edit.
I had to use the below command inside my <input>
along withe ng model being declared.
[(ngModel)]=userDataToPass.pinCode
Where I have the list of data in the object userDataToPass
and the item that I need to display and edit is pinCode
.
For the same , I referred to this YouTube video
In my case the problem happened after we migrated to AndroidX. For some reason, app was calling MultiDex.install() with reflection:
final Class<?> clazz = Class.forName("android.support.multidex.MultiDex");
final Method method = clazz.getDeclaredMethod("install", Context.class);
method.invoke(null, this);
I changed package from android.support.multidex.MultiDex
to androidx.multidex.MultiDex
. It worked.
This whitelist approach (ie, allowing only the chars present in valid_chars) will work if there aren't limits on the formatting of the files or combination of valid chars that are illegal (like ".."), for example, what you say would allow a filename named " . txt" which I think is not valid on Windows. As this is the most simple approach I'd try to remove whitespace from the valid_chars and prepend a known valid string in case of error, any other approach will have to know about what is allowed where to cope with Windows file naming limitations and thus be a lot more complex.
>>> import string
>>> valid_chars = "-_.() %s%s" % (string.ascii_letters, string.digits)
>>> valid_chars
'-_.() abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
>>> filename = "This Is a (valid) - filename%$&$ .txt"
>>> ''.join(c for c in filename if c in valid_chars)
'This Is a (valid) - filename .txt'
Without knowing what the actual error you are getting is I would guess it is missing quotes. try the following:
mysql_query("UPDATE blogEntry SET content = '$udcontent', title = '$udtitle' WHERE id = '$id'")
If (theChar >= '0' && theChar <='9')
it's a digit. You get the idea.
Probably the most definitive is Figure B.1(d) of the ggplot2 book, the appendices of which are available at http://ggplot2.org/book/appendices.pdf.
However, it is not quite that simple. hjust
and vjust
as described there are how it works in geom_text
and theme_text
(sometimes). One way to think of it is to think of a box around the text, and where the reference point is in relation to that box, in units relative to the size of the box (and thus different for texts of different size). An hjust
of 0.5 and a vjust
of 0.5 center the box on the reference point. Reducing hjust
moves the box right by an amount of the box width times 0.5-hjust
. Thus when hjust=0
, the left edge of the box is at the reference point. Increasing hjust
moves the box left by an amount of the box width times hjust-0.5
. When hjust=1
, the box is moved half a box width left from centered, which puts the right edge on the reference point. If hjust=2
, the right edge of the box is a box width left of the reference point (center is 2-0.5=1.5
box widths left of the reference point. For vertical, less is up and more is down. This is effectively what that Figure B.1(d) says, but it extrapolates beyond [0,1].
But, sometimes this doesn't work. For example
DF <- data.frame(x=c("a","b","cdefghijk","l"),y=1:4)
p <- ggplot(DF, aes(x,y)) + geom_point()
p + opts(axis.text.x=theme_text(vjust=0))
p + opts(axis.text.x=theme_text(vjust=1))
p + opts(axis.text.x=theme_text(vjust=2))
The three latter plots are identical. I don't know why that is. Also, if text is rotated, then it is more complicated. Consider
p + opts(axis.text.x=theme_text(hjust=0, angle=90))
p + opts(axis.text.x=theme_text(hjust=0.5 angle=90))
p + opts(axis.text.x=theme_text(hjust=1, angle=90))
p + opts(axis.text.x=theme_text(hjust=2, angle=90))
The first has the labels left justified (against the bottom), the second has them centered in some box so their centers line up, and the third has them right justified (so their right sides line up next to the axis). The last one, well, I can't explain in a coherent way. It has something to do with the size of the text, the size of the widest text, and I'm not sure what else.
As far as I can tell, GitHub does not provide shell access, so I'm curious about how you managed to log in in the first place.
$ ssh -T [email protected]
Hi username! You've successfully authenticated, but GitHub does not provide
shell access.
You have to clone your repository locally, make the change there, and push the change to GitHub.
$ git clone [email protected]:username/reponame.git
$ cd reponame
$ git mv README README.md
$ git commit -m "renamed"
$ git push origin master
Use negative lookaround: (?!
pattern
)
Positive lookarounds can be used to assert that a pattern matches. Negative lookarounds is the opposite: it's used to assert that a pattern DOES NOT match. Some flavor supports assertions; some puts limitations on lookbehind, etc.
These are attempts to come up with regex solutions to toy problems as exercises; they should be educational if you're trying to learn the various ways you can use lookarounds (nesting them, using them to capture, etc):
To replace a string in a single file (currently opened): CTRL + H
For replacing at workspace level use: CTRL + SHIFT + H
Here is my way to do it so just using .filter
.
var arr = ['pear', 'apple', 'orange', 'apple'];
function dup(arrr) {
let max = { item: 0, count: 0 };
for (let i = 0; i < arrr.length; i++) {
let arrOccurences = arrr.filter(item => { return item === arrr[i] }).length;
if (arrOccurences > max.count) {
max = { item: arrr[i], count: arrr.filter(item => { return item === arrr[i] }).length };
}
}
return max.item;
}
console.log(dup(arr));
_x000D_
This code scrolls to the bottom but doesn't require that you wait each time. It'll continually scroll, and then stop at the bottom (or timeout)
from selenium import webdriver
import time
driver = webdriver.Chrome(executable_path='chromedriver.exe')
driver.get('https://example.com')
pre_scroll_height = driver.execute_script('return document.body.scrollHeight;')
run_time, max_run_time = 0, 1
while True:
iteration_start = time.time()
# Scroll webpage, the 100 allows for a more 'aggressive' scroll
driver.execute_script('window.scrollTo(0, 100*document.body.scrollHeight);')
post_scroll_height = driver.execute_script('return document.body.scrollHeight;')
scrolled = post_scroll_height != pre_scroll_height
timed_out = run_time >= max_run_time
if scrolled:
run_time = 0
pre_scroll_height = post_scroll_height
elif not scrolled and not timed_out:
run_time += time.time() - iteration_start
elif not scrolled and timed_out:
break
# closing the driver is optional
driver.close()
This is much faster than waiting 0.5-3 seconds each time for a response, when that response could take 0.1 seconds
As @Agam said,
You need this statement in your driver file:
from AthleteList import AtheleteList
a = 0.000006;
b = 6;
c = a/b;
textbox.Text = c.ToString("0.000000");
As you requested:
textbox.Text = c.ToString("0.######");
This will only display out to the 6th decimal place if there are 6 decimals to display.
You can use basic css to achieve smooth scroll
html {
scroll-behavior: smooth;
}
In my case was webpack having the UglifyPlugin running with drop_console: true
set
I found them useful in a situation when I wanted to declare a handler for some control's event, using another control. To do it normally you would have to store controls' references in fields of the class so that you could use them in a different method than they were created.
private ComboBox combo;
private Label label;
public CreateControls()
{
combo = new ComboBox();
label = new Label();
//some initializing code
combo.SelectedIndexChanged += new EventHandler(combo_SelectedIndexChanged);
}
void combo_SelectedIndexChanged(object sender, EventArgs e)
{
label.Text = combo.SelectedValue;
}
thanks to lambda expressions you can use it like this:
public CreateControls()
{
ComboBox combo = new ComboBox();
Label label = new Label();
//some initializing code
combo.SelectedIndexChanged += (s, e) => {label.Text = combo.SelectedValue;};
}
Much easier.
First of all, you can't prevent people from downloading fonts except if it is yours and that usually takes months. And it makes no sense to prevent people from using fonts. A lot of fonts that you see on websites can be found on free platforms like the one I mentioned below.
But if you want to implement a font into your website read this: There is a pretty simple and free way to implement fonts into your website. I would recommend Google fonts because it is free and easy to use. For example, I'll use the Bangers font from Google.(https://fonts.google.com/specimen/Bangers?query=bangers&sidebar.open&selection.family=Bangers) This is how it would look like: HTML
<head>
<link href="https://fonts.googleapis.com/css2?family=Bangers&display=swap" rel="stylesheet">
</head>
CSS
body {
font-family: 'Bangers', cursive;
}
Calling System.exit(0)
(or any other value for that matter) causes the Java virtual machine to exit, terminating the current process. The parameter you pass will be the return value that the java
process will return to the operating system. You can make this call from anywhere in your program - and the result will always be the same - JVM terminates. As this is simply calling a static method in System
class, the compiler does not know what it will do - and hence does not complain about unreachable code.
return
statement simply aborts execution of the current method. It literally means return the control to the calling method. If the method is declared as void
(as in your example), then you do not need to specify a value, as you'd need to return void
. If the method is declared to return a particular type, then you must specify the value to return - and this value must be of the specified type.
return
would cause the program to exit only if it's inside the main
method of the main class being execute. If you try to put code after it, the compiler will complain about unreachable code, for example:
public static void main(String... str) {
System.out.println(1);
return;
System.out.println(2);
System.exit(0);
}
will not compile with most compiler - producing unreachable code
error pointing to the second System.out.println
call.
if you are working with JTextField then it can be helpfull..
public JTextField display;
String number=e.getActionCommand();
display.setText(display.getText()+number);
ch=number.toCharArray();
for( int i=0; i<ch.length; i++)
System.out.println("in array a1= "+ch[i]);
Installing the Microsoft Visual C++ Redistributable for Visual Studio 2015, 2017 and 2019 worked for me with a similar problem, and helped with another (slightly different) driver issue.
Source, if it's still there on SO.
=====================================================================
On Python = 3.5, use pathlib.Path.mkdir
:
from pathlib import Path
Path("/my/directory").mkdir(parents=True, exist_ok=True)
For older versions of Python, I see two answers with good qualities, each with a small flaw, so I will give my take on it:
Try os.path.exists
, and consider os.makedirs
for the creation.
import os
if not os.path.exists(directory):
os.makedirs(directory)
As noted in comments and elsewhere, there's a race condition – if the directory is created between the os.path.exists
and the os.makedirs
calls, the os.makedirs
will fail with an OSError
. Unfortunately, blanket-catching OSError
and continuing is not foolproof, as it will ignore a failure to create the directory due to other factors, such as insufficient permissions, full disk, etc.
One option would be to trap the OSError
and examine the embedded error code (see Is there a cross-platform way of getting information from Python’s OSError):
import os, errno
try:
os.makedirs(directory)
except OSError as e:
if e.errno != errno.EEXIST:
raise
Alternatively, there could be a second os.path.exists
, but suppose another created the directory after the first check, then removed it before the second one – we could still be fooled.
Depending on the application, the danger of concurrent operations may be more or less than the danger posed by other factors such as file permissions. The developer would have to know more about the particular application being developed and its expected environment before choosing an implementation.
Modern versions of Python improve this code quite a bit, both by exposing FileExistsError
(in 3.3+)...
try:
os.makedirs("path/to/directory")
except FileExistsError:
# directory already exists
pass
...and by allowing a keyword argument to os.makedirs
called exist_ok
(in 3.2+).
os.makedirs("path/to/directory", exist_ok=True) # succeeds even if directory exists.
Given below is PHP code to generate tomorrow's date using mktime()
and change its format to dd/mm/yyyy format and then print it using echo
.
$tomorrow = mktime(0, 0, 0, date("m"), date("d") + 1, date("Y"));
echo date("d", $tomorrow) . "/" . date("m", $tomorrow). "/" . date("Y", $tomorrow);
In my case, the problem was that the phpMyAdmin version was specified wrongly in the phpmyadmin.conf
file. You may check that:
Go to wamp/apps/phpmyadmin3.x.x: notice the file name - what version you are currently using?
Open file wamp/alias/phpmyadmin.conf:
Options Indexes FollowSymLinks MultiViews AllowOverride all Order Deny,Allow Allow from all
Check the first line (directory "c:/wamp/apps/phpmyadmin3.x.x/") is the file name exactly the same as your actual file name.
Make sure the directory file name is absolutely correct.
I know a way without jQuery:
document.getElementById("element-id").scrollIntoView();
Edit: It's been two years and I'm still randomly getting reputation from this post lmao
Edit 2: Please don't edit my comment without asking me.
I've simply used this javascript code (using jquery but it's not strictly necessary) :
$( "#button" ).on( "click", function(event) {
$(this).attr('href', 'mailto:[email protected]?subject=hello');
});
When users click on the link, we replace the href attribute of the clicked element.
Be careful don't prevent the default comportment (event.preventDefault), we must let do it because we have just replaced the href where to go
I think robots can't see it, the address is protected from spams.
Try this:
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>_x000D_
_x000D_
<div class="container">_x000D_
<h2>Button Tags</h2>_x000D_
<a href="#" class="btn btn-info" role="button">Link Button</a>_x000D_
<button type="button" class="btn btn-info">Button</button>_x000D_
<input type="button" class="btn btn-info" value="Input Button">_x000D_
<input type="submit" class="btn btn-info" value="Submit Button">_x000D_
</div>
_x000D_
You can use the a href
tag line from there.
<a href="URL" class="btn btn-info" role="button">Button Text</a>
If you know the data type of the array, you can use something like:
int arr[] = {23, 12, 423, 43, 21, 43, 65, 76, 22};
int noofele = sizeof(arr)/sizeof(int);
Or if you don't know the data type of array, you can use something like:
noofele = sizeof(arr)/sizeof(arr[0]);
Note: This thing only works if the array is not defined at run time (like malloc) and the array is not passed in a function. In both cases, arr
(array name) is a pointer.
I'd mention that some fonts have issues in firefox if their filename contains specific characters. I've recently run into an issue with the font 'Modulus' which had a filename '237D7B_0_0'. Removing the underscores in the filename and updating the css to match the new filename solved this problem. Other fonts with similar characters don't have this issue which is very curious...probably a bug in firefox. I'd recommend keeping filenames just to alphanumeric characters.
It might be beneficial to add greedy matching to the end of the string, so you can accept strings > than 10 and the regex will only return up to the first 10 chars. /^[a-z0-9]{0,10}$?/
I had a same problem with scrolling in chrome. So i removed this lines of codes from my style file.
html{height:100%;}
body{height:100%;}
Now i can play with scroll and it works:
var pos = 500;
$("html,body").animate({ scrollTop: pos }, "slow");
Another framework which has not been mentioned so far is Laravel. It's great for building PHP apps in general but thanks to the great router it's really comfortable and simple to build rich APIs. It might not be that slim as Slim or Sliex but it gives you a solid structure.
See Aaron Kuzemchak - Simple API Development With Laravel on YouTube and
Laravel 4: A Start at a RESTful API on NetTuts+
Seems like I'm 3 years late to the party...
Unfortunately you can't as has been pointed out. See Are JavaScript strings immutable? Do I need a "string builder" in JavaScript?
The next best thing you can do is to create a "view" or "wrapper", which takes a string and reimplements whatever parts of the string API you are using, but pretending the string is reversed. For example:
var identity = function(x){return x};
function LazyString(s) {
this.original = s;
this.length = s.length;
this.start = 0; this.stop = this.length; this.dir = 1; // "virtual" slicing
// (dir=-1 if reversed)
this._caseTransform = identity;
}
// syntactic sugar to create new object:
function S(s) {
return new LazyString(s);
}
//We now implement a `"...".reversed` which toggles a flag which will change our math:
(function(){ // begin anonymous scope
var x = LazyString.prototype;
// Addition to the String API
x.reversed = function() {
var s = new LazyString(this.original);
s.start = this.stop - this.dir;
s.stop = this.start - this.dir;
s.dir = -1*this.dir;
s.length = this.length;
s._caseTransform = this._caseTransform;
return s;
}
//We also override string coercion for some extra versatility (not really necessary):
// OVERRIDE STRING COERCION
// - for string concatenation e.g. "abc"+reversed("abc")
x.toString = function() {
if (typeof this._realized == 'undefined') { // cached, to avoid recalculation
this._realized = this.dir==1 ?
this.original.slice(this.start,this.stop) :
this.original.slice(this.stop+1,this.start+1).split("").reverse().join("");
this._realized = this._caseTransform.call(this._realized, this._realized);
}
return this._realized;
}
//Now we reimplement the String API by doing some math:
// String API:
// Do some math to figure out which character we really want
x.charAt = function(i) {
return this.slice(i, i+1).toString();
}
x.charCodeAt = function(i) {
return this.slice(i, i+1).toString().charCodeAt(0);
}
// Slicing functions:
x.slice = function(start,stop) {
// lazy chaining version of https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/slice
if (stop===undefined)
stop = this.length;
var relativeStart = start<0 ? this.length+start : start;
var relativeStop = stop<0 ? this.length+stop : stop;
if (relativeStart >= this.length)
relativeStart = this.length;
if (relativeStart < 0)
relativeStart = 0;
if (relativeStop > this.length)
relativeStop = this.length;
if (relativeStop < 0)
relativeStop = 0;
if (relativeStop < relativeStart)
relativeStop = relativeStart;
var s = new LazyString(this.original);
s.length = relativeStop - relativeStart;
s.start = this.start + this.dir*relativeStart;
s.stop = s.start + this.dir*s.length;
s.dir = this.dir;
//console.log([this.start,this.stop,this.dir,this.length], [s.start,s.stop,s.dir,s.length])
s._caseTransform = this._caseTransform;
return s;
}
x.substring = function() {
// ...
}
x.substr = function() {
// ...
}
//Miscellaneous functions:
// Iterative search
x.indexOf = function(value) {
for(var i=0; i<this.length; i++)
if (value==this.charAt(i))
return i;
return -1;
}
x.lastIndexOf = function() {
for(var i=this.length-1; i>=0; i--)
if (value==this.charAt(i))
return i;
return -1;
}
// The following functions are too complicated to reimplement easily.
// Instead just realize the slice and do it the usual non-in-place way.
x.match = function() {
var s = this.toString();
return s.apply(s, arguments);
}
x.replace = function() {
var s = this.toString();
return s.apply(s, arguments);
}
x.search = function() {
var s = this.toString();
return s.apply(s, arguments);
}
x.split = function() {
var s = this.toString();
return s.apply(s, arguments);
}
// Case transforms:
x.toLowerCase = function() {
var s = new LazyString(this.original);
s._caseTransform = ''.toLowerCase;
s.start=this.start; s.stop=this.stop; s.dir=this.dir; s.length=this.length;
return s;
}
x.toUpperCase = function() {
var s = new LazyString(this.original);
s._caseTransform = ''.toUpperCase;
s.start=this.start; s.stop=this.stop; s.dir=this.dir; s.length=this.length;
return s;
}
})() // end anonymous scope
Demo:
> r = S('abcABC')
LazyString
original: "abcABC"
__proto__: LazyString
> r.charAt(1); // doesn't reverse string!!! (good if very long)
"B"
> r.toLowerCase() // must reverse string, so does so
"cbacba"
> r.toUpperCase() // string already reversed: no extra work
"CBACBA"
> r + '-demo-' + r // natural coercion, string already reversed: no extra work
"CBAcba-demo-CBAcba"
The kicker -- the following is done in-place by pure math, visiting each character only once, and only if necessary:
> 'demo: ' + S('0123456789abcdef').slice(3).reversed().slice(1,-1).toUpperCase()
"demo: EDCBA987654"
> S('0123456789ABCDEF').slice(3).reversed().slice(1,-1).toLowerCase().charAt(3)
"b"
This yields significant savings if applied to a very large string, if you are only taking a relatively small slice thereof.
Whether this is worth it (over reversing-as-a-copy like in most programming languages) highly depends on your use case and how efficiently you reimplement the string API. For example if all you want is to do string index manipulation, or take small slice
s or substr
s, this will save you space and time. If you're planning on printing large reversed slices or substrings however, the savings may be small indeed, even worse than having done a full copy. Your "reversed" string will also not have the type string
, though you might be able to fake this with prototyping.
The above demo implementation creates a new object of type ReversedString. It is prototyped, and therefore fairly efficient, with almost minimal work and minimal space overhead (prototype definitions are shared). It is a lazy implementation involving deferred slicing. Whenever you perform a function like .slice
or .reversed
, it will perform index mathematics. Finally when you extract data (by implicitly calling .toString()
or .charCodeAt(...)
or something), it will apply those in a "smart" manner, touching the least data possible.
Note: the above string API is an example, and may not be implemented perfectly. You also can use just 1-2 functions which you need.
Edit: as of Bootstrap 3.1 .col-xs-offset-*
does exist, see bootstrap :: grid options
.col-xs-offset-*
doesn't exist.
Offset and column ordering are only for small and more. (ONLY .col-sm-offset-*
, .col-md-offset-*
and .col-lg-offset-*
)
See the official documentation : bootstrap :: grid options
you can also do this:
section = "C_type"
new_section = "Sec_%s" % section
This allows you not only append, but also insert wherever in the string:
section = "C_type"
new_section = "Sec_%s_blah" % section
I noticed that postgres 9.2 now calls the column pid rather than procpid.
I tend to call it from the shell:
#!/usr/bin/env bash
# kill all connections to the postgres server
if [ -n "$1" ] ; then
where="where pg_stat_activity.datname = '$1'"
echo "killing all connections to database '$1'"
else
echo "killing all connections to database"
fi
cat <<-EOF | psql -U postgres -d postgres
SELECT pg_terminate_backend(pg_stat_activity.pid)
FROM pg_stat_activity
${where}
EOF
Hope that is helpful. Thanks to @JustBob for the sql.
I recommend https://pypi.python.org/pypi/anytree
from anytree import Node, RenderTree
udo = Node("Udo")
marc = Node("Marc", parent=udo)
lian = Node("Lian", parent=marc)
dan = Node("Dan", parent=udo)
jet = Node("Jet", parent=dan)
jan = Node("Jan", parent=dan)
joe = Node("Joe", parent=dan)
print(udo)
Node('/Udo')
print(joe)
Node('/Udo/Dan/Joe')
for pre, fill, node in RenderTree(udo):
print("%s%s" % (pre, node.name))
Udo
+-- Marc
¦ +-- Lian
+-- Dan
+-- Jet
+-- Jan
+-- Joe
print(dan.children)
(Node('/Udo/Dan/Jet'), Node('/Udo/Dan/Jan'), Node('/Udo/Dan/Joe'))
anytree has also a powerful API with:
This is the normal behavior and the reason is that your sqlCommandHandlerService.persist
method needs a TX when being executed (because it is marked with @Transactional
annotation). But when it is called inside processNextRegistrationMessage
, because there is a TX available, the container doesn't create a new one and uses existing TX. So if any exception occurs in sqlCommandHandlerService.persist
method, it causes TX to be set to rollBackOnly
(even if you catch the exception in the caller and ignore it).
To overcome this you can use propagation levels for transactions. Have a look at this to find out which propagation best suits your requirements.
Well after a colleague came to me with a couple of questions about a similar situation, I feel this needs a bit of clarification.
Although propagations solve such issues, you should be VERY careful about using them and do not use them unless you ABSOLUTELY understand what they mean and how they work. You may end up persisting some data and rolling back some others where you don't expect them to work that way and things can go horribly wrong.
The above given ans are correct and works fine. I used in a different way.
config.yml
imports:
- { resource: parameters.yml }
- { resource: security.yml }
- { resource: app.yml }
- { resource: app_twig.yml }
app.yml
parameters:
app.version: 1.0.1
app_twig.yml
twig:
globals:
version: %app.version%
Inside controller:
$application_version = $this->container->getParameter('app.version');
// Here using app.yml
Inside template/twig file:
Project version {{ version }}!
{# Here using app_twig.yml content. #}
{# Because in controller we used $application_version #}
Controller:
public function indexAction() {
$application_version = $this->container->getParameter('app.version');
return array('app_version' => $application_version);
}
template/twig file :
Project version {{ app_version }}
I mentioned the different for better understand.
(2019) I used $('#'+id).removeAttr().off('click').on('click', function(){...});
I tried $('#'+id).off().on(...)
, but it wouldn't work to reset the onClick attribute every time it was called to be reset.
I use .on('click',function(){...});
to stay away from having to quote block all my javascript functions.
The O.P. could now use:
$(this).removeAttr('onclick').off('click').on('click', function(){
displayCalendar(document.prjectFrm[ia + 'dtSubDate'],'yyyy-mm-dd', this);
});
Where this came through for me is when my div was set with the onClick attribute set statically:
<div onclick = '...'>
Otherwise, if I only had a dynamically attached a listener to it, I would have used the $('#'+id).off().on('click', function(){...});
.
Without the off('click') my onClick listeners were being appended not replaced.
I couldn't get the form suggested by @thoredge to work in Gradle 1.11, but this works for me:
home = System.getenv('HOME')
It helps to keep in mind that anything that works in pure Java will work in Gradle too.
This worked for me. It's simple for simple objects.
class Person {_x000D_
constructor(firstName, lastName) {_x000D_
this.firstName = firstName;_x000D_
this.lastName = lastName;_x000D_
}_x000D_
getFullName() {_x000D_
return this.lastName + " " + this.firstName;_x000D_
}_x000D_
_x000D_
static class(obj) {_x000D_
return new Person(obj.firstName, obj.lastName);_x000D_
}_x000D_
}_x000D_
_x000D_
var person1 = {_x000D_
lastName: "Freeman",_x000D_
firstName: "Gordon"_x000D_
};_x000D_
_x000D_
var gordon = Person.class(person1);_x000D_
console.log(gordon.getFullName());
_x000D_
I was also searching for a simple solution, and this is what I came up with, based on all other answers and my research. Basically, class Person has another constructor, called 'class' which works with a generic object of the same 'format' as Person. I hope this might help somebody as well.
This defines what shell (command interpreter) you are using for interpreting/running your script. Each shell is slightly different in the way it interacts with the user and executes scripts (programs).
When you type in a command at the Unix prompt, you are interacting with the shell.
E.g., #!/bin/csh
refers to the C-shell, /bin/tcsh
the t-shell, /bin/bash
the bash shell, etc.
You can tell which interactive shell you are using the
echo $SHELL
command, or alternatively
env | grep -i shell
You can change your command shell with the chsh
command.
Each has a slightly different command set and way of assigning variables and its own set of programming constructs. For instance the if-else statement with bash looks different that the one in the C-shell.
This page might be of interest as it "translates" between bash and tcsh commands/syntax.
Using the directive in the shell script allows you to run programs using a different shell. For instance I use the tcsh
shell interactively, but often run bash scripts using /bin/bash in the script file.
Aside:
This concept extends to other scripts too. For instance if you program in Python you'd put
#!/usr/bin/python
at the top of your Python program
Not specifically using -replace
, but you get the same effect parsing the content using -notmatch
and regex.
(get-content 'c:\FileWithEmptyLines.txt') -notmatch '^\s*$' > c:\FileWithNoEmptyLines.txt
print("imageURLString = " + imageURLString!)
just use !
Note: this was an experiment to see how UTF-8 encoding worked internally. The solution offered by vilicvane, to use a UTF8Encoding
object that is initialised to throw an exception on decoding failure, is much simpler, and basically does the same thing.
I wrote this piece of code to differentiate between UTF-8 and Windows-1252. It shouldn't be used for gigantic text files though, since it loads the entire thing into memory and scans it completely. I used it for .srt subtitle files, just to be able to save them back in the encoding in which they were loaded.
The encoding given to the function as ref should be the 8-bit fallback encoding to use in case the file is detected as not being valid UTF-8; generally, on Windows systems, this will be Windows-1252. This doesn't do anything fancy like checking actual valid ascii ranges though, and doesn't detect UTF-16 even on byte order mark.
The theory behind the bitwise detection can be found here: https://ianthehenry.com/2015/1/17/decoding-utf-8/
Basically, the bit range of the first byte determines how many after it are part of the UTF-8 entity. These bytes after it are always in the same bit range.
/// <summary>
/// Reads a text file, and detects whether its encoding is valid UTF-8 or ascii.
/// If not, decodes the text using the given fallback encoding.
/// Bit-wise mechanism for detecting valid UTF-8 based on
/// https://ianthehenry.com/2015/1/17/decoding-utf-8/
/// </summary>
/// <param name="docBytes">The bytes read from the file.</param>
/// <param name="encoding">The default encoding to use as fallback if the text is detected not to be pure ascii or UTF-8 compliant. This ref parameter is changed to the detected encoding.</param>
/// <returns>The contents of the read file, as String.</returns>
public static String ReadFileAndGetEncoding(Byte[] docBytes, ref Encoding encoding)
{
if (encoding == null)
encoding = Encoding.GetEncoding(1252);
Int32 len = docBytes.Length;
// byte order mark for utf-8. Easiest way of detecting encoding.
if (len > 3 && docBytes[0] == 0xEF && docBytes[1] == 0xBB && docBytes[2] == 0xBF)
{
encoding = new UTF8Encoding(true);
// Note that even when initialising an encoding to have
// a BOM, it does not cut it off the front of the input.
return encoding.GetString(docBytes, 3, len - 3);
}
Boolean isPureAscii = true;
Boolean isUtf8Valid = true;
for (Int32 i = 0; i < len; ++i)
{
Int32 skip = TestUtf8(docBytes, i);
if (skip == 0)
continue;
if (isPureAscii)
isPureAscii = false;
if (skip < 0)
{
isUtf8Valid = false;
// if invalid utf8 is detected, there's no sense in going on.
break;
}
i += skip;
}
if (isPureAscii)
encoding = new ASCIIEncoding(); // pure 7-bit ascii.
else if (isUtf8Valid)
encoding = new UTF8Encoding(false);
// else, retain given encoding. This should be an 8-bit encoding like Windows-1252.
return encoding.GetString(docBytes);
}
/// <summary>
/// Tests if the bytes following the given offset are UTF-8 valid, and
/// returns the amount of bytes to skip ahead to do the next read if it is.
/// If the text is not UTF-8 valid it returns -1.
/// </summary>
/// <param name="binFile">Byte array to test</param>
/// <param name="offset">Offset in the byte array to test.</param>
/// <returns>The amount of bytes to skip ahead for the next read, or -1 if the byte sequence wasn't valid UTF-8</returns>
public static Int32 TestUtf8(Byte[] binFile, Int32 offset)
{
// 7 bytes (so 6 added bytes) is the maximum the UTF-8 design could support,
// but in reality it only goes up to 3, meaning the full amount is 4.
const Int32 maxUtf8Length = 4;
Byte current = binFile[offset];
if ((current & 0x80) == 0)
return 0; // valid 7-bit ascii. Added length is 0 bytes.
Int32 len = binFile.Length;
for (Int32 addedlength = 1; addedlength < maxUtf8Length; ++addedlength)
{
Int32 fullmask = 0x80;
Int32 testmask = 0;
// This code adds shifted bits to get the desired full mask.
// If the full mask is [111]0 0000, then test mask will be [110]0 0000. Since this is
// effectively always the previous step in the iteration I just store it each time.
for (Int32 i = 0; i <= addedlength; ++i)
{
testmask = fullmask;
fullmask += (0x80 >> (i+1));
}
// figure out bit masks from level
if ((current & fullmask) == testmask)
{
if (offset + addedlength >= len)
return -1;
// Lookahead. Pattern of any following bytes is always 10xxxxxx
for (Int32 i = 1; i <= addedlength; ++i)
{
if ((binFile[offset + i] & 0xC0) != 0x80)
return -1;
}
return addedlength;
}
}
// Value is greater than the maximum allowed for utf8. Deemed invalid.
return -1;
}
pandas 0.21 introduces new functions for Parquet:
pd.read_parquet('example_pa.parquet', engine='pyarrow')
or
pd.read_parquet('example_fp.parquet', engine='fastparquet')
The above link explains:
These engines are very similar and should read/write nearly identical parquet format files. These libraries differ by having different underlying dependencies (fastparquet by using numba, while pyarrow uses a c-library).
as a simple example:
CREATE DATABASE LINK _dblink_name_ CONNECT TO _username_ IDENTIFIED BY _passwd_ USING '$_ORACLE_SID_'
for more info: http://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_5005.htm
>>> class C:
... def f(self):
... print "hi"
...
>>> C.f()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: unbound method f() must be called with C instance as
first argument (got nothing instead)
It fails because of TypeError because you didn't instantiate the class first, you have two choices: 1: either make the method static so you can run it in a static way, or 2: instantiate your class so you have an instance to grab onto, to run the method.
It looks like you want to run the method in a static way, do this:
>>> class C:
... @staticmethod
... def f():
... print "hi"
...
>>> C.f()
hi
Or, what you probably meant is to use the instantiated instance like this:
>>> class C:
... def f(self):
... print "hi"
...
>>> c1 = C()
>>> c1.f()
hi
>>> C().f()
hi
If this confuses you, ask these questions:
Another option is to use apt-file (i.e. apt-file search makeinfo
). It may or may not be installed in your distro by default, but it is a great tool for determining what package a file belongs to.
To parse this:
val jsonString = """
{
"type":"Foo",
"data":[
{
"id":1,
"title":"Hello"
},
{
"id":2,
"title":"World"
}
]
}
"""
Use these classes:
import org.json.JSONObject
class Response(json: String) : JSONObject(json) {
val type: String? = this.optString("type")
val data = this.optJSONArray("data")
?.let { 0.until(it.length()).map { i -> it.optJSONObject(i) } } // returns an array of JSONObject
?.map { Foo(it.toString()) } // transforms each JSONObject of the array into Foo
}
class Foo(json: String) : JSONObject(json) {
val id = this.optInt("id")
val title: String? = this.optString("title")
}
Usage:
val foos = Response(jsonString)
Maybe something like this:
yourformName.YourLabel.Font = new Font("Arial", 24,FontStyle.Bold);
Or if you are in the same class as the form then simply do this:
YourLabel.Font = new Font("Arial", 24,FontStyle.Bold);
The constructor takes diffrent parameters (so pick your poison). Like this:
Font(Font, FontStyle)
Font(FontFamily, Single)
Font(String, Single)
Font(FontFamily, Single, FontStyle)
Font(FontFamily, Single, GraphicsUnit)
Font(String, Single, FontStyle)
Font(String, Single, GraphicsUnit)
Font(FontFamily, Single, FontStyle, GraphicsUnit)
Font(String, Single, FontStyle, GraphicsUnit)
Font(FontFamily, Single, FontStyle, GraphicsUnit, Byte)
Font(String, Single, FontStyle, GraphicsUnit, Byte)
Font(FontFamily, Single, FontStyle, GraphicsUnit, Byte, Boolean)
Font(String, Single, FontStyle, GraphicsUnit, Byte, Boolean)
Reference here
I had this issue on a REST API that was created using Spring framework. Adding a @ResponseBody annotation (to make the response JSON) resolved it.
Since dplyr 1.0.0
, the across()
function could be used:
df %>%
group_by(Category) %>%
summarise(across(Frequency, sum))
Category Frequency
<chr> <int>
1 First 30
2 Second 5
3 Third 34
If interested in multiple variables:
df %>%
group_by(Category) %>%
summarise(across(c(Frequency, Frequency2), sum))
Category Frequency Frequency2
<chr> <int> <int>
1 First 30 55
2 Second 5 29
3 Third 34 190
And the selection of variables using select helpers:
df %>%
group_by(Category) %>%
summarise(across(starts_with("Freq"), sum))
Category Frequency Frequency2 Frequency3
<chr> <int> <int> <dbl>
1 First 30 55 110
2 Second 5 29 58
3 Third 34 190 380
Sample data:
df <- read.table(text = "Category Frequency Frequency2 Frequency3
1 First 10 10 20
2 First 15 30 60
3 First 5 15 30
4 Second 2 8 16
5 Third 14 70 140
6 Third 20 120 240
7 Second 3 21 42",
header = TRUE,
stringsAsFactors = FALSE)