Add tomcat in Eclipse
In Eclipse, as tomcat server, double click "Tomcat v7.0 Server at Localhost", Change the properties as shown in time out settings 45 to whatever sec you like
\n --> newline character is not working for inserting a new line.
str="Hello!!";
document.write(str);
document.write("\n");
document.write(str);
But if we use below code then it works fine and it gives new line.
document.write(str);
document.write("<br>");
document.write(str);
Note:: I tried in Visual Studio Code.
System.getProperties()
can be overridden by calls to System.setProperty(String key, String value)
or with command line parameters -Dfile.separator=/
File.separator
gets the separator for the default filesystem.
FileSystems.getDefault()
gets you the default filesystem.
FileSystem.getSeparator()
gets you the separator character for the filesystem. Note that as an instance method you can use this to pass different filesystems to your code other than the default, in cases where you need your code to operate on multiple filesystems in the one JVM.
You should check whether the distance from the center of the circle to the point is smaller than the radius
using Python
if (x-center_x)**2 + (y-center_y)**2 <= radius**2:
# inside circle
#element1 {float:left;}
#element2 {padding-left : 20px; float:left;}
fiddle : http://jsfiddle.net/sKqZJ/
or
#element1 {float:left;}
#element2 {margin-left : 20px;float:left;}
fiddle : http://jsfiddle.net/sKqZJ/1/
or
#element1 {padding-right : 20px; float:left;}
#element2 {float:left;}
fiddle : http://jsfiddle.net/sKqZJ/2/
or
#element1 {margin-right : 20px; float:left;}
#element2 {float:left;}
fiddle : http://jsfiddle.net/sKqZJ/3/
reference : The Difference Between CSS Margins and Padding
The methodNotAllowed
exception indicates that a route doesn't exist for the HTTP method you are requesting.
Your form is set up to make a DELETE
request, so your route needs to use Route::delete()
to receive this.
Route::delete('empresas/eliminar/{id}', [
'as' => 'companiesDelete',
'uses' => 'CompaniesController@delete'
]);
Launch the program "Run" (Windows Vista/7/8: type it in the start menu search bar) and type:
C:\windows\assembly\GAC_MSIL
Then move to the parent folder (Windows Vista/7/8: by clicking on it in the explorer bar) to see all the GAC files in a normal explorer window. You can now copy, add and remove files as everywhere else.
All the set
-related solutions to this problem thus far require creating an entire set
before iteration.
It is possible to make this lazy, and at the same time preserve order, by iterating the list of lists and adding to a "seen" set
. Then only yield a list if it is not found in this tracker set
.
This unique_everseen
recipe is available in the itertools
docs. It's also available in the 3rd party toolz
library:
from toolz import unique
k = [[1, 2], [4], [5, 6, 2], [1, 2], [3], [4]]
# lazy iterator
res = map(list, unique(map(tuple, k)))
print(list(res))
[[1, 2], [4], [5, 6, 2], [3]]
Note that tuple
conversion is necessary because lists are not hashable.
In case of SVN servers you have to creating a central repository with all projects. The contents of the repository can be uploaded with the Team/Share command; in case of the Subversive client it automatically runs a commit after the import, so you can upload your files.
This step cannot be circumvented in any way using a centralized version management system such as SVN.
To sign an assembly with a strong name using attributes
Open AssemblyInfo.cs
(in $(SolutionDir)\Properties
)
the AssemblyKeyFileAttribute
or the AssemblyKeyNameAttribute
, specifying the name of the file or container that contains the key pair to use when signing the assembly with a strong name.
add the following code:
[assembly:AssemblyKeyFileAttribute("keyfile.snk")]
function Map() {
this.keys = new Array();
this.data = new Object();
this.put = function (key, value) {
if (this.data[key] == null) {
this.keys.push(key);
}
this.data[key] = value;
};
this.get = function (key) {
return this.data[key];
};
this.remove = function (key) {
this.keys.remove(key);
this.data[key] = null;
};
this.each = function (fn) {
if (typeof fn != 'function') {
return;
}
var len = this.keys.length;
for (var i = 0; i < len; i++) {
var k = this.keys[i];
fn(k, this.data[k], i);
}
};
this.entrys = function () {
var len = this.keys.length;
var entrys = new Array(len);
for (var i = 0; i < len; i++) {
entrys[i] = {
key: this.keys[i],
value: this.data[i]
};
}
return entrys;
};
this.isEmpty = function () {
return this.keys.length == 0;
};
this.size = function () {
return this.keys.length;
};
}
The Python approach to "main" is almost unique to the language(*).
The semantics are a bit subtle. The __name__
identifier is bound to the name of any module as it's being imported. However, when a file is being executed then __name__
is set to "__main__"
(the literal string: __main__
).
This is almost always used to separate the portion of code which should be executed from the portions of code which define functionality. So Python code often contains a line like:
#!/usr/bin/env python
from __future__ import print_function
import this, that, other, stuff
class SomeObject(object):
pass
def some_function(*args,**kwargs):
pass
if __name__ == '__main__':
print("This only executes when %s is executed rather than imported" % __file__)
Using this convention one can have a file define classes and functions for use in other programs, and also include code to evaluate only when the file is called as a standalone script.
It's important to understand that all of the code above the if __name__
line is being executed, evaluated, in both cases. It's evaluated by the interpreter when the file is imported or when it's executed. If you put a print
statement before the if __name__
line then it will print output every time any other code attempts to import that as a module. (Of course, this would be anti-social. Don't do that).
I, personally, like these semantics. It encourages programmers to separate functionality (definitions) from function (execution) and encourages re-use.
Ideally almost every Python module can do something useful if called from the command line. In many cases this is used for managing unit tests. If a particular file defines functionality which is only useful in the context of other components of a system then one can still use __name__ == "__main__"
to isolate a block of code which calls a suite of unit tests that apply to this module.
(If you're not going to have any such functionality nor unit tests than it's best to ensure that the file mode is NOT executable).
Summary: if __name__ == '__main__':
has two primary use cases:
It's fairly common to def main(*args)
and have if __name__ == '__main__':
simply call main(*sys.argv[1:])
if you want to define main in a manner that's similar to some other programming languages. If your .py file is primarily intended to be used as a module in other code then you might def test_module()
and calling test_module()
in your if __name__ == '__main__:'
suite.
if __file__ == $0
).Inspired by Johann's table, I've decided to extend the table. I wanted to see which ASCII characters get encoded.
var ascii = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~";_x000D_
_x000D_
var encoded = [];_x000D_
_x000D_
ascii.split("").forEach(function (char) {_x000D_
var obj = { char };_x000D_
if (char != encodeURI(char))_x000D_
obj.encodeURI = encodeURI(char);_x000D_
if (char != encodeURIComponent(char))_x000D_
obj.encodeURIComponent = encodeURIComponent(char);_x000D_
if (obj.encodeURI || obj.encodeURIComponent)_x000D_
encoded.push(obj);_x000D_
});_x000D_
_x000D_
console.table(encoded);
_x000D_
Table shows only the encoded characters. Empty cells mean that the original and the encoded characters are the same.
Just to be extra, I'm adding another table for urlencode()
vs rawurlencode()
. The only difference seems to be the encoding of space character.
<script>
<?php
$ascii = str_split(" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~", 1);
$encoded = [];
foreach ($ascii as $char) {
$obj = ["char" => $char];
if ($char != urlencode($char))
$obj["urlencode"] = urlencode($char);
if ($char != rawurlencode($char))
$obj["rawurlencode"] = rawurlencode($char);
if (isset($obj["rawurlencode"]) || isset($obj["rawurlencode"]))
$encoded[] = $obj;
}
echo "var encoded = " . json_encode($encoded) . ";";
?>
console.table(encoded);
</script>
Here is the "newer school" version.
SELECT * FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_TYPE = N'PROCEDURE' and ROUTINE_SCHEMA = N'dbo'
and CREATED = '20120927'
Or add "sort name" to list alphabetically
Get-ADPrincipalGroupMembership username | select name | sort name
I totally agree with Abacus (sorry - don't have enough points to comment).
Also, keep in mind it doesn't necessarily come down to how many records you have, but the size of your records.
For instance, have you considered the performance difference between 1,000 records with 50 columns each vs 100,000 records with only 5 columns each?
Lastly, maybe you're querying/storing more data than you need? Here's a good read on SQL optimization strategies. Limit the amount of data you're pulling, especially if you're not using it all (some SQL programmers do get lazy and just select everything even though they only use a tiny subset). Don't forget the SQL query analyzer may also become your best friend.
I would strongly suggest you start using jQuery. Your code would look like:
$(function() {
$('form[name="myform"]').submit(function(e) {
var username = $('form[name="myform"] input[name="username"]').val();
if ( username == '') {
e.preventDefault();
$('#errors').text('*Please enter a username*');
}
});
});
Strange behaviour while debugging my app: require "active_support/notifications" (rdb:1) p ENV['RAILS_ENV'] "test" (rdb:1) p Rails.env "development"
I would say that you should stick to one or another (and preferably Rails.env)
follow these steps:
open terminal go to your root dictionary by typing
cd /
you will see Library folder
Now follow this path Library/Java/JVM/bin
Once you get into bin
you can see the javac
file
Now you need to get the path of this folder for that just write this command
pwd
get the path for your javac
.
The full list of possible fields in the html based email-creating form:
<form action="mailto:[email protected]" method="GET">
<input name="subject" type="text" /></br>
<input name="cc" type="email" /><br />
<input name="bcc" type="email" /><br />
<textarea name="body"></textarea><br />
<input type="submit" value="Send" />
</form>
You can close every Java Process and start again your app:
taskkill /F /IM java.exe
start your app again...
try this=> numpy.array(yourvariable) followed by the command to compare, whatever you wish to.
Just for diversity I will post variation of https://stackoverflow.com/a/2173421/102484 , because that solution leads to message "Terminated" in my environment:
trap 'test -z "$intrap" && export intrap=1 && kill -- -$$' SIGINT SIGTERM EXIT
The keypress
event might be different across browsers.
I created a Jsfiddle to compare keyboard events (using the JQuery shortcuts) on Chrome and Firefox. Depending on the browser you're using a keypress
event will be triggered or not -- backspace will trigger keydown/keypress/keyup
on Firefox but only keydown/keyup
on Chrome.
on Chrome
keydown/keypress/keyup
when browser registers a keyboard input (keypress
is fired)
keydown/keyup
if no keyboard input (tested with alt, shift, backspace, arrow keys)
keydown
only for tab?
on Firefox
keydown/keypress/keyup
when browser registers a keyboard input but also for backspace, arrow keys, tab (so here keypress
is fired even with no input)
keydown/keyup
for alt, shift
This shouldn't be surprising because according to https://api.jquery.com/keypress/:
Note: as the keypress event isn't covered by any official specification, the actual behavior encountered when using it may differ across browsers, browser versions, and platforms.
The use of the keypress event type is deprecated by W3C (http://www.w3.org/TR/DOM-Level-3-Events/#event-type-keypress)
The keypress event type is defined in this specification for reference and completeness, but this specification deprecates the use of this event type. When in editing contexts, authors can subscribe to the beforeinput event instead.
Finally, to answer your question, you should use keyup
or keydown
to detect a backspace across Firefox and Chrome.
Try it out on here:
$(".inputTxt").bind("keypress keyup keydown", function (event) {_x000D_
var evtType = event.type;_x000D_
var eWhich = event.which;_x000D_
var echarCode = event.charCode;_x000D_
var ekeyCode = event.keyCode;_x000D_
_x000D_
switch (evtType) {_x000D_
case 'keypress':_x000D_
$("#log").html($("#log").html() + "<b>" + evtType + "</b>" + " keycode: " + ekeyCode + " charcode: " + echarCode + " which: " + eWhich + "<br>");_x000D_
break;_x000D_
case 'keyup':_x000D_
$("#log").html($("#log").html() + "<b>" + evtType + "</b>" + " keycode: " + ekeyCode + " charcode: " + echarCode + " which: " + eWhich + "<p>");_x000D_
break;_x000D_
case 'keydown':_x000D_
$("#log").html($("#log").html() + "<b>" + evtType + "</b>" + " keycode: " + ekeyCode + " charcode: " + echarCode + " which: " + eWhich + "<br>");_x000D_
break;_x000D_
default:_x000D_
break;_x000D_
}_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>_x000D_
<input class="inputTxt" type="text" />_x000D_
<div id="log"></div>
_x000D_
You can use Dictonary to map Assume Milk,Butter,Chesse are group A (ListA) Water,Beer,Wine are group B
Dictonary<string,List<string>>) dataMap;
dataMap.add("A",ListA);
dataMap.add("B",ListB);
At View , you can foreach Keys in dataMap and process your action
Use below cron:
39 20 * * * root [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -r -0 rm
I use jQuery.getJSON( url [, data ] [, success( data, textStatus, jqXHR ) ] )
for example:
var url="my.php";
$.getJSON( url, myObj )
.done(function( json ) { ... }) /* got JSON from server */
.fail(function( jqxhr, textStatus, error ) {
var err = textStatus + ", " + error;
console.log( "Failed to obtain JSON data from server: " + err );
}); /* failed to get JSON */
getJSON is shorthand for:
$.ajax({
dataType: "json",
url: url,
data: data,
success: success
});
If you are using more animation attributes the shorthand is:
animation: bubble 2s linear 0.5s 1 normal forwards;
This gives:
bubble
animation name2s
durationlinear
timing-function0.5s
delay1
iteration-count (can be 'infinite
')normal
directionforwards
fill-mode (set 'backwards' if you want to have compatibility to use the end position as the final state[this is to support browsers that has animations turned off]{and to answer only the title, and not your specific case})I have faced a similar problem, but it consoles the error like an encoding issue.
After changing the IDE encoding, it works fine.
As you have noticed executing the bat directly without CALL
,START
, CMD /C
causes to enter and execute the first file and then the process to stop as the first file is finished. Though you still can use &
which will be the same as using command1 & command2
directly in the console:
(
first.bat
)&(
second.bat
)& (
third.bat
)&(
echo other commands
)
In a term of machine resources this will be the most efficient way though in the last block you won't be able to use command line GOTO
,SHIFT
,SETLOCAL
.. and its capabilities will almost the same as in executing commands in the command prompt. And you won't be able to execute other command after the last closing bracket
call first.bat
call second.bat
call third.bat
In most of the cases it will be best approach - it does not create a separate process but has almost identical behaviour as calling a :label
as subroutine. In MS terminology it creates a new "batch file context and pass control to the statement after the specified label. The first time the end of the batch file is encountered (that is, after jumping to the label), control returns to the statement after the call statement."
You can use variables set in the called files (if they are not set in a SETLOCAL
block), you can access directly labels in the called file.
CMD /C
, Pipes ,FOR /F
Other native
option is to use CMD /C
(the /C switch will force the called console to exit and return the control)
Something that cmd.exe is doing in non transparent way with using FOR /F
against bat file or when pipes are used.
This will spawn a child process that will have all the environment ot the calling bat.
Less efficient in terms of resources but as the process is separate ,parsing crashes or calling an EXIT
command will not stop the calling .bat
@echo off
CMD /c first.bat
CMD /C second.bat
::not so different than the above lines.
:: MORE,FINDSTR,FIND command will be able to read the piped data
:: passed from the left side
break|third.bat
Allows you more flexibility as the capability to start the scripts in separate window , to not wait them to finish, setting a title and so on. By default it starts the .bat
and .cmd
scripts with CMD /K
which means that the spawned scripts will not close automatically.Again passes all the environment to the started scripts and consumes more resources than cmd /c
:
:: will be executed in the same console window and will wait to finish
start "" /b /w cmd /c first.bat
::will start in a separate console window and WONT wait to be finished
:: the second console window wont close automatically so second.bat might need explicit exit command
start "" second.bat
::Will start it in a separate window ,but will wait to finish
:: closing the second window will cause Y/N prompt
:: in the original window
start "" /w third.cmd
::will start it in the same console window
:: but wont wait to finish. May lead to a little bit confusing output
start "" /b cmd /c fourth.bat
Unlike the other methods from now on the examples will use external of the CMD.exe utilities (still available on Windows by default). WMIC utility will create completely separate process so you wont be able directly to wait to finish. Though the best feature of WMIC is that it returns the id of the spawned process:
:: will create a separate process with cmd.exe /c
WMIC process call create "%cd%\first.bat","%cd%"
::you can get the PID and monitoring it with other tools
for /f "tokens=2 delims=;= " %%# in ('WMIC process call create "%cd%\second.bat"^,"%cd%" ^|find "ProcessId"') do (
set "PID=%%#"
)
echo %PID%
You can also use it to start a process on a remote machine , with different user and so on.
Using SCHTASKS provides some features as (obvious) scheduling , running as another user (even the system user) , remote machine start and so on. Again starts it in completely separate environment (i.e. its own variables) and even a hidden process, xml file with command parameters and so on :
SCHTASKS /create /tn BatRunner /tr "%cd%\first.bat" /sc ONCE /sd 01/01/1910 /st 00:00
SCHTASKS /Run /TN BatRunner
SCHTASKS /Delete /TN BatRunner /F
Here the PID also can acquired from the event log.
Offers some timeout between started scripts. Basic transaction capabilities (i.e. rollback on error) and the parameters can be put in a separate XML file.
::if the script is not finished after 15 seconds (i.e. ends with pause) it will be killed
ScriptRunner.exe -appvscript %cd%\first.bat -appvscriptrunnerparameters -wait -timeout=15
::will wait or the first called script before to start the second
:: if any of the scripts exit with errorcode different than 0 will try
:: try to restore the system in the original state
ScriptRunner.exe -appvscript second.cmd arg1 arg2 -appvscriptrunnerparameters -wait -rollbackonerror -appvscript third.bat -appvscriptrunnerparameters -wait -timeout=30 -rollbackonerror
one way i have found:
try to insert this field into your generated form code:
<input type='hidden' name='rm' value='2'>
rm means return method;
2 means (post)
Than after user purchases and returns to your site url, then that url gets the POST parameters as well
p.s. if using php, try to insert var_dump($_POST);
in your return url(script),then make a test purchase and when you return back to your site you will see what variables are got on your url.
How are you generating the radio button list? If you're just using HTML:
<input type="radio" onclick="alert('hello');"/>
If you're generating these via something like ASP.NET, you can add that as an attribute to each element in the list. You can run this after you populate your list, or inline it if you build up your list one-by-one:
foreach(ListItem RadioButton in RadioButtons){
RadioButton.Attributes.Add("onclick", "alert('hello');");
}
new Date().toString();
http://www.mkyong.com/java/java-how-to-get-current-date-time-date-and-calender/
Dateformatter can make it to any string you want
You have to initialise the object (create the object itself) in order to be able to call its methods otherwise you would get a NullPointerException
.
WordList words = new WordList();
Assumes, you have a data.json file in the src/app folder of your project with the following values:
[
{
"id": 1,
"name": "Licensed Frozen Hat",
"description": "Incidunt et magni est ut.",
"price": "170.00",
"imageUrl": "https://source.unsplash.com/1600x900/?product",
"quantity": 56840
},
...
]
import { Component, OnInit } from '@angular/core';
import * as data from './data.json';
@Component({
selector: 'app-root',
template: `<ul>
<li *ngFor="let product of products">
</li>
</ul>`,
styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
title = 'Angular Example';
products: any = (data as any).default;
constructor(){}
ngOnInit(){
console.log(data);
}
}
import { Component, OnInit } from '@angular/core';
import { HttpClient } from "@angular/common/http";
@Component({
selector: 'app-root',
template: `<ul>
<li *ngFor="let product of products">
</li>
</ul>`,
styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
title = 'Angular Example';
products: any = [];
constructor(private httpClient: HttpClient){}
ngOnInit(){
this.httpClient.get("assets/data.json").subscribe(data =>{
console.log(data);
this.products = data;
})
}
}
But first we need to add a typing file as follows:
declare module "*.json" {
const value: any;
export default value;
}
Add this inside a new file json-typings.d.ts
file in the src/app folder.
Now, you can import JSON files just like TypeScript 2.9+.
import * as data from "data.json";
If you have downloaded the AS + SDK bundle: in Windows 10
C:\Users\ your User Name \AppData\Local\Android\sdk\platform-tools\
Run adb.exe
Type adb shell.
Now able to access adb and the db.
you could use following function
const merge = (a, b, key = "id") =>
a.filter(elem => !b.find(subElem => subElem[key] === elem[key]))
.concat(b);
and try
merge(arr1, arr2, 'name');
I hacked this out for release Bootstrap 4.1.1 per my needs before I saw @florian_korner's post. Looks very similar.
If you use sass you can paste this snippet at the end of your bootstrap includes. It seems to fix the issue for chrome, IE, and edge. Does not seem to break anything in firefox.
@mixin make-td-col($size, $columns: $grid-columns) {
width: percentage($size / $columns);
}
@each $breakpoint in map-keys($grid-breakpoints) {
$infix: breakpoint-infix($breakpoint, $grid-breakpoints);
@for $i from 1 through $grid-columns {
td.col#{$infix}-#{$i}, th.col#{$infix}-#{$i} {
@include make-td-col($i, $grid-columns);
}
}
}
or if you just want the compiled css utility:
td.col-1, th.col-1 {
width: 8.33333%; }
td.col-2, th.col-2 {
width: 16.66667%; }
td.col-3, th.col-3 {
width: 25%; }
td.col-4, th.col-4 {
width: 33.33333%; }
td.col-5, th.col-5 {
width: 41.66667%; }
td.col-6, th.col-6 {
width: 50%; }
td.col-7, th.col-7 {
width: 58.33333%; }
td.col-8, th.col-8 {
width: 66.66667%; }
td.col-9, th.col-9 {
width: 75%; }
td.col-10, th.col-10 {
width: 83.33333%; }
td.col-11, th.col-11 {
width: 91.66667%; }
td.col-12, th.col-12 {
width: 100%; }
td.col-sm-1, th.col-sm-1 {
width: 8.33333%; }
td.col-sm-2, th.col-sm-2 {
width: 16.66667%; }
td.col-sm-3, th.col-sm-3 {
width: 25%; }
td.col-sm-4, th.col-sm-4 {
width: 33.33333%; }
td.col-sm-5, th.col-sm-5 {
width: 41.66667%; }
td.col-sm-6, th.col-sm-6 {
width: 50%; }
td.col-sm-7, th.col-sm-7 {
width: 58.33333%; }
td.col-sm-8, th.col-sm-8 {
width: 66.66667%; }
td.col-sm-9, th.col-sm-9 {
width: 75%; }
td.col-sm-10, th.col-sm-10 {
width: 83.33333%; }
td.col-sm-11, th.col-sm-11 {
width: 91.66667%; }
td.col-sm-12, th.col-sm-12 {
width: 100%; }
td.col-md-1, th.col-md-1 {
width: 8.33333%; }
td.col-md-2, th.col-md-2 {
width: 16.66667%; }
td.col-md-3, th.col-md-3 {
width: 25%; }
td.col-md-4, th.col-md-4 {
width: 33.33333%; }
td.col-md-5, th.col-md-5 {
width: 41.66667%; }
td.col-md-6, th.col-md-6 {
width: 50%; }
td.col-md-7, th.col-md-7 {
width: 58.33333%; }
td.col-md-8, th.col-md-8 {
width: 66.66667%; }
td.col-md-9, th.col-md-9 {
width: 75%; }
td.col-md-10, th.col-md-10 {
width: 83.33333%; }
td.col-md-11, th.col-md-11 {
width: 91.66667%; }
td.col-md-12, th.col-md-12 {
width: 100%; }
td.col-lg-1, th.col-lg-1 {
width: 8.33333%; }
td.col-lg-2, th.col-lg-2 {
width: 16.66667%; }
td.col-lg-3, th.col-lg-3 {
width: 25%; }
td.col-lg-4, th.col-lg-4 {
width: 33.33333%; }
td.col-lg-5, th.col-lg-5 {
width: 41.66667%; }
td.col-lg-6, th.col-lg-6 {
width: 50%; }
td.col-lg-7, th.col-lg-7 {
width: 58.33333%; }
td.col-lg-8, th.col-lg-8 {
width: 66.66667%; }
td.col-lg-9, th.col-lg-9 {
width: 75%; }
td.col-lg-10, th.col-lg-10 {
width: 83.33333%; }
td.col-lg-11, th.col-lg-11 {
width: 91.66667%; }
td.col-lg-12, th.col-lg-12 {
width: 100%; }
td.col-xl-1, th.col-xl-1 {
width: 8.33333%; }
td.col-xl-2, th.col-xl-2 {
width: 16.66667%; }
td.col-xl-3, th.col-xl-3 {
width: 25%; }
td.col-xl-4, th.col-xl-4 {
width: 33.33333%; }
td.col-xl-5, th.col-xl-5 {
width: 41.66667%; }
td.col-xl-6, th.col-xl-6 {
width: 50%; }
td.col-xl-7, th.col-xl-7 {
width: 58.33333%; }
td.col-xl-8, th.col-xl-8 {
width: 66.66667%; }
td.col-xl-9, th.col-xl-9 {
width: 75%; }
td.col-xl-10, th.col-xl-10 {
width: 83.33333%; }
td.col-xl-11, th.col-xl-11 {
width: 91.66667%; }
td.col-xl-12, th.col-xl-12 {
width: 100%; }
From a module:
UserFormName.UserForm_Initialize
Just make sure that in your userform, you update the sub like so:
Public Sub UserForm_Initialize()
so it can be called from outside the form.
Alternately, if the Userform hasn't been loaded:
UserFormName.Show
will end up calling UserForm_Initialize
because it loads the form.
Here is an answer that should work in all cases:
def is_empty(s):
"Check whether a string is empty"
return not s or not s.strip()
If the variable is None, it will stop at not s
and not evaluate further (since not None == True
). Apparently, the strip()
method takes care of the usual cases of tab, newline, etc.
ConfirmDialog('Are you sure');_x000D_
_x000D_
function ConfirmDialog(message) {_x000D_
$('<div></div>').appendTo('body')_x000D_
.html('<div><h6>' + message + '?</h6></div>')_x000D_
.dialog({_x000D_
modal: true,_x000D_
title: 'Delete message',_x000D_
zIndex: 10000,_x000D_
autoOpen: true,_x000D_
width: 'auto',_x000D_
resizable: false,_x000D_
buttons: {_x000D_
Yes: function() {_x000D_
// $(obj).removeAttr('onclick'); _x000D_
// $(obj).parents('.Parent').remove();_x000D_
_x000D_
$('body').append('<h1>Confirm Dialog Result: <i>Yes</i></h1>');_x000D_
_x000D_
$(this).dialog("close");_x000D_
},_x000D_
No: function() {_x000D_
$('body').append('<h1>Confirm Dialog Result: <i>No</i></h1>');_x000D_
_x000D_
$(this).dialog("close");_x000D_
}_x000D_
},_x000D_
close: function(event, ui) {_x000D_
$(this).remove();_x000D_
}_x000D_
});_x000D_
};
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<link href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/themes/smoothness/jquery-ui.css" rel="stylesheet" />_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
_x000D_
You can use KeyboardJS. I wrote the library for tasks just like this.
KeyboardJS.on('up', function() { console.log('up'); });
KeyboardJS.on('down', function() { console.log('down'); });
KeyboardJS.on('left', function() { console.log('right'); });
KeyboardJS.on('right', function() { console.log('left'); });
Checkout the library here => http://robertwhurst.github.com/KeyboardJS/
Here's how you can do that.
Writing the persistent cookie.
//create a cookie
HttpCookie myCookie = new HttpCookie("myCookie");
//Add key-values in the cookie
myCookie.Values.Add("userid", objUser.id.ToString());
//set cookie expiry date-time. Made it to last for next 12 hours.
myCookie.Expires = DateTime.Now.AddHours(12);
//Most important, write the cookie to client.
Response.Cookies.Add(myCookie);
Reading the persistent cookie.
//Assuming user comes back after several hours. several < 12.
//Read the cookie from Request.
HttpCookie myCookie = Request.Cookies["myCookie"];
if (myCookie == null)
{
//No cookie found or cookie expired.
//Handle the situation here, Redirect the user or simply return;
}
//ok - cookie is found.
//Gracefully check if the cookie has the key-value as expected.
if (!string.IsNullOrEmpty(myCookie.Values["userid"]))
{
string userId = myCookie.Values["userid"].ToString();
//Yes userId is found. Mission accomplished.
}
Just for the record, here is the difference between If and IIf:
IIf(condition, true-part, false-part):
If(condition, true-part, false-part):
I had some trouble similar to this,
<repository>
<id>java.net</id>
<url>https://maven-repository.dev.java.net/nonav/repository</url>
<layout>legacy</layout>
</repository>
<repository>
<id>java.net2</id>
<url>https://maven2-repository.dev.java.net/nonav/repository</url>
</repository>
Setting the updatePolicy to "never" did not work. Removing these repo was the way I solved it. ps: I was following this tutorial about web services (btw, probably the best tutorial for ws for java)
I would suggest you use the code provided by Bootstrap authors on their issue tracker on GitHub:
var hash = location.hash
, hashPieces = hash.split('?')
, activeTab = $('[href=' + hashPieces[0] + ']');
activeTab && activeTab.tab('show');
You can find on the link to the issue more information about why they didn't choose to support that.
try this...
<script type="text/javascript">
function test(){
var av=document.getElementById("mytext").value;
alert(av);
}
</script>
<input type="text" value="" id="mytext">
<input type="button" onclick="test()" value="go" />
Private outer class would be useless as nothing can access it.
See more details:
The solution for me is:
list
has a count
method:
>>> [True,True,False].count(True)
2
This is actually more efficient than sum
, as well as being more explicit about the intent, so there's no reason to use sum
:
In [1]: import random
In [2]: x = [random.choice([True, False]) for i in range(100)]
In [3]: %timeit x.count(True)
970 ns ± 41.1 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
In [4]: %timeit sum(x)
1.72 µs ± 161 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)
I would use ruby-build
with rbenv
. The following lines install Ruby 3.0.0 and set it as your default Ruby version:
$ brew update
$ brew install ruby-build
$ brew install rbenv
$ rbenv install 3.0.0
$ rbenv global 3.0.0
Possibly:
std::cin.ignore(INT_MAX);
This would read in and ignore everything until EOF
. (you can also supply a second argument which is the character to read until (ex: '\n'
to ignore a single line).
Also: You probably want to do a: std::cin.clear();
before this too to reset the stream state.
Don't use @@ERROR
, use BEGIN TRY/BEGIN CATCH
instead. See this article: Exception handling and nested transactions for a sample procedure:
create procedure [usp_my_procedure_name]
as
begin
set nocount on;
declare @trancount int;
set @trancount = @@trancount;
begin try
if @trancount = 0
begin transaction
else
save transaction usp_my_procedure_name;
-- Do the actual work here
lbexit:
if @trancount = 0
commit;
end try
begin catch
declare @error int, @message varchar(4000), @xstate int;
select @error = ERROR_NUMBER(), @message = ERROR_MESSAGE(), @xstate = XACT_STATE();
if @xstate = -1
rollback;
if @xstate = 1 and @trancount = 0
rollback
if @xstate = 1 and @trancount > 0
rollback transaction usp_my_procedure_name;
raiserror ('usp_my_procedure_name: %d: %s', 16, 1, @error, @message) ;
return;
end catch
end
There is a simple solution based on Git stash. Stash everything that you've changed, pull all the new stuff, apply your stash.
git stash
git pull
git stash pop
On stash pop there may be conflicts. In the case you describe there would in fact be a conflict for config.php
. But, resolving the conflict is easy because you know that what you put in the stash is what you want. So do this:
git checkout --theirs -- config.php
public class MainActivity extends FragmentActivity {
List<Overlay> mapOverlays;
GeoPoint point1, point2;
LocationManager locManager;
Drawable drawable;
Document document;
GMapV2GetRouteDirection v2GetRouteDirection;
LatLng fromPosition;
LatLng toPosition;
GoogleMap mGoogleMap;
MarkerOptions markerOptions;
Location location ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
v2GetRouteDirection = new GMapV2GetRouteDirection();
SupportMapFragment supportMapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mGoogleMap = supportMapFragment.getMap();
// Enabling MyLocation in Google Map
mGoogleMap.setMyLocationEnabled(true);
mGoogleMap.getUiSettings().setZoomControlsEnabled(true);
mGoogleMap.getUiSettings().setCompassEnabled(true);
mGoogleMap.getUiSettings().setMyLocationButtonEnabled(true);
mGoogleMap.getUiSettings().setAllGesturesEnabled(true);
mGoogleMap.setTrafficEnabled(true);
mGoogleMap.animateCamera(CameraUpdateFactory.zoomTo(12));
markerOptions = new MarkerOptions();
fromPosition = new LatLng(11.663837, 78.147297);
toPosition = new LatLng(11.723512, 78.466287);
GetRouteTask getRoute = new GetRouteTask();
getRoute.execute();
}
/**
*
* @author VIJAYAKUMAR M
* This class Get Route on the map
*
*/
private class GetRouteTask extends AsyncTask<String, Void, String> {
private ProgressDialog Dialog;
String response = "";
@Override
protected void onPreExecute() {
Dialog = new ProgressDialog(MainActivity.this);
Dialog.setMessage("Loading route...");
Dialog.show();
}
@Override
protected String doInBackground(String... urls) {
//Get All Route values
document = v2GetRouteDirection.getDocument(fromPosition, toPosition, GMapV2GetRouteDirection.MODE_DRIVING);
response = "Success";
return response;
}
@Override
protected void onPostExecute(String result) {
mGoogleMap.clear();
if(response.equalsIgnoreCase("Success")){
ArrayList<LatLng> directionPoint = v2GetRouteDirection.getDirection(document);
PolylineOptions rectLine = new PolylineOptions().width(10).color(
Color.RED);
for (int i = 0; i < directionPoint.size(); i++) {
rectLine.add(directionPoint.get(i));
}
// Adding route on the map
mGoogleMap.addPolyline(rectLine);
markerOptions.position(toPosition);
markerOptions.draggable(true);
mGoogleMap.addMarker(markerOptions);
}
Dialog.dismiss();
}
}
@Override
protected void onStop() {
super.onStop();
finish();
}
}
Route Helper class
public class GMapV2GetRouteDirection {
public final static String MODE_DRIVING = "driving";
public final static String MODE_WALKING = "walking";
public GMapV2GetRouteDirection() { }
public Document getDocument(LatLng start, LatLng end, String mode) {
String url = "http://maps.googleapis.com/maps/api/directions/xml?"
+ "origin=" + start.latitude + "," + start.longitude
+ "&destination=" + end.latitude + "," + end.longitude
+ "&sensor=false&units=metric&mode=driving";
try {
HttpClient httpClient = new DefaultHttpClient();
HttpContext localContext = new BasicHttpContext();
HttpPost httpPost = new HttpPost(url);
HttpResponse response = httpClient.execute(httpPost, localContext);
InputStream in = response.getEntity().getContent();
DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document doc = builder.parse(in);
return doc;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public String getDurationText (Document doc) {
NodeList nl1 = doc.getElementsByTagName("duration");
Node node1 = nl1.item(0);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "text"));
Log.i("DurationText", node2.getTextContent());
return node2.getTextContent();
}
public int getDurationValue (Document doc) {
NodeList nl1 = doc.getElementsByTagName("duration");
Node node1 = nl1.item(0);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "value"));
Log.i("DurationValue", node2.getTextContent());
return Integer.parseInt(node2.getTextContent());
}
public String getDistanceText (Document doc) {
NodeList nl1 = doc.getElementsByTagName("distance");
Node node1 = nl1.item(0);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "text"));
Log.i("DistanceText", node2.getTextContent());
return node2.getTextContent();
}
public int getDistanceValue (Document doc) {
NodeList nl1 = doc.getElementsByTagName("distance");
Node node1 = nl1.item(0);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "value"));
Log.i("DistanceValue", node2.getTextContent());
return Integer.parseInt(node2.getTextContent());
}
public String getStartAddress (Document doc) {
NodeList nl1 = doc.getElementsByTagName("start_address");
Node node1 = nl1.item(0);
Log.i("StartAddress", node1.getTextContent());
return node1.getTextContent();
}
public String getEndAddress (Document doc) {
NodeList nl1 = doc.getElementsByTagName("end_address");
Node node1 = nl1.item(0);
Log.i("StartAddress", node1.getTextContent());
return node1.getTextContent();
}
public String getCopyRights (Document doc) {
NodeList nl1 = doc.getElementsByTagName("copyrights");
Node node1 = nl1.item(0);
Log.i("CopyRights", node1.getTextContent());
return node1.getTextContent();
}
public ArrayList<LatLng> getDirection (Document doc) {
NodeList nl1, nl2, nl3;
ArrayList<LatLng> listGeopoints = new ArrayList<LatLng>();
nl1 = doc.getElementsByTagName("step");
if (nl1.getLength() > 0) {
for (int i = 0; i < nl1.getLength(); i++) {
Node node1 = nl1.item(i);
nl2 = node1.getChildNodes();
Node locationNode = nl2.item(getNodeIndex(nl2, "start_location"));
nl3 = locationNode.getChildNodes();
Node latNode = nl3.item(getNodeIndex(nl3, "lat"));
double lat = Double.parseDouble(latNode.getTextContent());
Node lngNode = nl3.item(getNodeIndex(nl3, "lng"));
double lng = Double.parseDouble(lngNode.getTextContent());
listGeopoints.add(new LatLng(lat, lng));
locationNode = nl2.item(getNodeIndex(nl2, "polyline"));
nl3 = locationNode.getChildNodes();
latNode = nl3.item(getNodeIndex(nl3, "points"));
ArrayList<LatLng> arr = decodePoly(latNode.getTextContent());
for(int j = 0 ; j < arr.size() ; j++) {
listGeopoints.add(new LatLng(arr.get(j).latitude, arr.get(j).longitude));
}
locationNode = nl2.item(getNodeIndex(nl2, "end_location"));
nl3 = locationNode.getChildNodes();
latNode = nl3.item(getNodeIndex(nl3, "lat"));
lat = Double.parseDouble(latNode.getTextContent());
lngNode = nl3.item(getNodeIndex(nl3, "lng"));
lng = Double.parseDouble(lngNode.getTextContent());
listGeopoints.add(new LatLng(lat, lng));
}
}
return listGeopoints;
}
private int getNodeIndex(NodeList nl, String nodename) {
for(int i = 0 ; i < nl.getLength() ; i++) {
if(nl.item(i).getNodeName().equals(nodename))
return i;
}
return -1;
}
private ArrayList<LatLng> decodePoly(String encoded) {
ArrayList<LatLng> poly = new ArrayList<LatLng>();
int index = 0, len = encoded.length();
int lat = 0, lng = 0;
while (index < len) {
int b, shift = 0, result = 0;
do {
b = encoded.charAt(index++) - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lat += dlat;
shift = 0;
result = 0;
do {
b = encoded.charAt(index++) - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lng += dlng;
LatLng position = new LatLng((double) lat / 1E5, (double) lng / 1E5);
poly.add(position);
}
return poly;
}
}
As it says at FontAwesome website FontAwesome =>
HTML:
<span class="icon login"></span> Login</li>
CSS:
.icon::before {
display: inline-block;
font-style: normal;
font-variant: normal;
text-rendering: auto;
-webkit-font-smoothing: antialiased;
}
.login::before {
font-family: "Font Awesome 5 Free";
font-weight: 900;
content: "\f007";
}
In .login::before
-> edit content:'';
to suit your unicode.
Here's a dynamic resize of iframe include way, with some delayed rerender on resize event:
function _facebook() {
var parent = document.getElementById('facebook');
var width = (window.innerWidth > 540) ? 500 : window.innerWidth - 40;
if (parent.firstChild && parent.firstChild.width == width) { return; }
var url = 'https://www.facebook.com/plugins/page.php?href=YOUR_FACEBOOK_PAGE_URL&tabs=messages&width='+width+'&height=500&small_header=false&adapt_container_width=true&hide_cover=false&show_facepile=true&appId=YOUR_APP_ID';
var i = document.createElement('iframe');
i.src = url;
i.width = width;
i.height = 500;
i.style = 'border:none;overflow:hidden';
i.scrolling = "no";
i.frameborder = "0";
i.allowTransparency = "true";
while (parent.firstChild) { parent.removeChild(parent.firstChild); }
parent.appendChild(i);
}
_facebook();
$(window).resize(function() {
clearTimeout(window.resizedFinished);
window.resizedFinished = setTimeout(function(){
_facebook();
}, 250);
});
I use the following method in my JavaFX applications.
newWindowButton.setOnMouseClicked((event) -> {
try {
FXMLLoader fxmlLoader = new FXMLLoader();
fxmlLoader.setLocation(getClass().getResource("NewWindow.fxml"));
/*
* if "fx:controller" is not set in fxml
* fxmlLoader.setController(NewWindowController);
*/
Scene scene = new Scene(fxmlLoader.load(), 600, 400);
Stage stage = new Stage();
stage.setTitle("New Window");
stage.setScene(scene);
stage.show();
} catch (IOException e) {
Logger logger = Logger.getLogger(getClass().getName());
logger.log(Level.SEVERE, "Failed to create new Window.", e);
}
});
Given a regular expression of (foobar)
you can reference the first group using $1
and so on if you have more groups in the replace input field.
glOrtho describes a transformation that produces a parallel projection. The current matrix (see glMatrixMode) is multiplied by this matrix and the result replaces the current matrix, as if glMultMatrix were called with the following matrix as its argument:
OpenGL documentation (my bold)
The numbers define the locations of the clipping planes (left, right, bottom, top, near and far).
The "normal" projection is a perspective projection that provides the illusion of depth. Wikipedia defines a parallel projection as:
Parallel projections have lines of projection that are parallel both in reality and in the projection plane.
Parallel projection corresponds to a perspective projection with a hypothetical viewpoint—e.g., one where the camera lies an infinite distance away from the object and has an infinite focal length, or "zoom".
If you're using Bootstrap 4, you just have to add 2 divs:
.jumbotron{_x000D_
height:100%;_x000D_
width:100%;_x000D_
}
_x000D_
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script> _x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
_x000D_
<body>_x000D_
<div class="jumbotron">_x000D_
<div class="d-table w-100 h-100">_x000D_
<div class="d-table-cell w-100 h-100 align-middle">_x000D_
<h5>_x000D_
your stuff..._x000D_
</h5>_x000D_
<div class="container">_x000D_
<div class="row">_x000D_
<div class="col-12">_x000D_
<p>_x000D_
More stuff..._x000D_
</p>_x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
</body>
_x000D_
The classes: d-table, d-table-cell, w-100, h-100 and align-middle will do the job
Maybe because you may need to create Db Resource and Pool manually on the Glassfish server like this,
In Netbeans -> Projects, Open Server Resources -> glassfish-resources.xml We have to create JDBC Resource and JDBC Connection Pool Manually on Glassfish. I am using my values here, don't use them, see your .xml !
Value of jndi-name is your JDBC Resource and Value of pool-name is your JDBC Connection Pool.
Open Browser for Glassfish Admin, https://localhost:4848/
Go to, JDBC Connection Pool -> New: 1) Pool Name: mysql_customersdb_rootPool 2) Resource Type: javax.sql.ConnectionPoolDataSource 3) Database Driver Vendor: MySql
Press Next,
URL: jdbc:mysql://localhost:3306/customersdb?zeroDateTimeBehavior=convertToNull Url: jdbc:mysql://localhost:3306/customersdb?zeroDateTimeBehavior=convertToNull User: root Password: root
JDBC Resources -> New
JNDI Name: CustomersDS Pool Name: mysql_customersdb_rootPool
Press Ok.
Right Click your Project and Press Run :)
I'll start off my noting that this hasn't happened since I upgraded my RAM. I was at 4GB and would often have multiple instances of VS open along with SSMS. I have since gone to 8GB and then 16GB.
Here's the steps I go through when I lose intellisense.
If only one file/window appears to be affected, close/reopen that file. If that doesn't work, try below.
In Visual Studio:
If this doesn't work, here's a few more steps to try:
For C++ projects:
MSDN has a few things to try: MSDN suggestions
The corrupt .ncb
file seems most likely.
From MSDN:
.ncb
file..ncb
file.)Notes:
This issue does not appear to be specific to C# as C++ and VB users report the same issue
Tested in VS 2013/2015
I had the same problem a month ago on Windows 10. Whenever I tried to access http://localhost/ it led me to the IIS page. I tried removing the IIS feature from windows features. Once I was sure it was gone, I tried running XAMPP, but it still did not work. I did not want to mess with the configuration files. But from this, I was quite sure it had something to do with my web browser. So, deleted the cache from the web browser I was using (Google Chrome).
To do so, I went to:
Chrome > Settings > Show Advanced Settings > Privacy > Clear browsing data > Clear Cached images and files.
Its almost the same process for any web browsers. Right after that, I was able to run XAMPP without any problem!
Hope it helps!
No, you will have to use OR
to combine your LIKE
statements:
SELECT
*
FROM
table
WHERE
column LIKE 'Text%' OR
column LIKE 'Link%' OR
column LIKE 'Hello%' OR
column LIKE '%World%'
Have you looked at Full-Text Search?
Just await
the three tasks separately, after starting them all.
var catTask = FeedCat();
var houseTask = SellHouse();
var carTask = BuyCar();
var cat = await catTask;
var house = await houseTask;
var car = await carTask;
If you are using T-SQL you could use a temporary table in a stored procedure and update or insert the records of your query accordingly.
I tried sudo apt install nginx-full. You will get all the required packages.
Can be done using an identityHashMap, subjected to the condition that the keys comparison will be done by == operator and not equals().
For Chrome, instead of
response.AppendHeader("X-Frame-Options", "ALLOW-FROM " + host);
you need to add Content-Security-Policy
string selfAuth = System.Web.HttpContext.Current.Request.Url.Authority;
string refAuth = System.Web.HttpContext.Current.Request.UrlReferrer.Authority;
response.AppendHeader("Content-Security-Policy", "default-src 'self' 'unsafe-inline' 'unsafe-eval' data: *.msecnd.net vortex.data.microsoft.com " + selfAuth + " " + refAuth);
to the HTTP-response-headers.
Note that this assumes you checked on the server whether or not refAuth is allowed.
And also, note that you need to do browser-detection in order to avoid adding the allow-from
header for Chrome (outputs error on console).
For details, see my answer here.
Start session from terminal:
openssl s_client -connect smtp.gmail.com:25 -starttls smtp
The last line of the response should be "250 SMTPUTF8"
Initiate login
auth login
This should return "334 VXNlcm5hbWU6".
Type username
Type your username in base64 encoding (eg. echo -n 'your-username' | base64
)
This should return "334 UGFzc3dvcmQ6"
Type password
Type your password in base64 encoding (eg. echo -n 'your-password' | base64
)
Success
You should see "235 2.7.0 Accepted" and you're are successfully logged in
$fname = "database.php";
$fhandle = fopen($fname,"r");
$content = fread($fhandle,filesize($fname));
$content = str_replace("192.168.1.198", "localhost", $content);
$fhandle = fopen($fname,"w");
fwrite($fhandle,$content);
fclose($fhandle);
None of these solutions worked for me.
Instead, I elaborate on @Martin v. Löwis 's mention of setting a config
file for SSH.
SSH will look for the user's ~/.ssh/config
file. I have mine setup as:
Host gitserv
Hostname remote.server.com
IdentityFile ~/.ssh/id_rsa.github
IdentitiesOnly yes # see NOTES below
And I add a remote git repository:
git remote add origin git@gitserv:myrepo.git
And then git commands work normally for me.
git push -v origin master
NOTES
IdentitiesOnly yes
is required to prevent the SSH default behavior of sending the identity file matching the default filename for each protocol. If you have a file named ~/.ssh/id_rsa
that will get tried BEFORE your ~/.ssh/id_rsa.github
without this option.References
thanks @iuryxavier
from multiprocessing import Pool
from multiprocessing import cpu_count
def add_1(x):
return x + 1
if __name__ == "__main__":
pool = Pool(cpu_count())
results = pool.map(add_1, range(10**12))
pool.close() # 'TERM'
pool.join() # 'KILL'
At Google I/O Reto Meier released a robust answer to how to approach this which should meet most developers needs to track users across installations. Anthony Nolan shows the direction in his answer, but I thought I'd write out the full approach so that others can easily see how to do it (it took me a while to figure out the details).
This approach will give you an anonymous, secure user ID which will be persistent for the user across different devices (based on the primary Google account) and across installs. The basic approach is to generate a random user ID and to store this in the apps' shared preferences. You then use Google's backup agent to store the shared preferences linked to the Google account in the cloud.
Let's go through the full approach. First, we need to create a backup for our SharedPreferences using the Android Backup Service. Start by registering your app via http://developer.android.com/google/backup/signup.html
.
Google will give you a backup service key which you need to add to the manifest. You also need to tell the application to use the BackupAgent as follows:
<application android:label="MyApplication"
android:backupAgent="MyBackupAgent">
...
<meta-data android:name="com.google.android.backup.api_key"
android:value="your_backup_service_key" />
</application>
Then you need to create the backup agent and tell it to use the helper agent for sharedpreferences:
public class MyBackupAgent extends BackupAgentHelper {
// The name of the SharedPreferences file
static final String PREFS = "user_preferences";
// A key to uniquely identify the set of backup data
static final String PREFS_BACKUP_KEY = "prefs";
// Allocate a helper and add it to the backup agent
@Override
public void onCreate() {
SharedPreferencesBackupHelper helper = new SharedPreferencesBackupHelper(this, PREFS);
addHelper(PREFS_BACKUP_KEY, helper);
}
}
To complete the backup you need to create an instance of BackupManager in your main Activity:
BackupManager backupManager = new BackupManager(context);
Finally create a user ID, if it doesn't already exist, and store it in the SharedPreferences:
public static String getUserID(Context context) {
private static String uniqueID = null;
private static final String PREF_UNIQUE_ID = "PREF_UNIQUE_ID";
if (uniqueID == null) {
SharedPreferences sharedPrefs = context.getSharedPreferences(
MyBackupAgent.PREFS, Context.MODE_PRIVATE);
uniqueID = sharedPrefs.getString(PREF_UNIQUE_ID, null);
if (uniqueID == null) {
uniqueID = UUID.randomUUID().toString();
Editor editor = sharedPrefs.edit();
editor.putString(PREF_UNIQUE_ID, uniqueID);
editor.commit();
//backup the changes
BackupManager mBackupManager = new BackupManager(context);
mBackupManager.dataChanged();
}
}
return uniqueID;
}
This User_ID will now be persistent across installations, even if the user moves device.
For more information on this approach see Reto's talk.
And for full details of how to implement the backup agent see Data Backup. I particularly recommend the section at the bottom on testing as the backup does not happen instantaneously and so to test you have to force the backup.
Use this.
https://www.facebook.com/browse/?type=page_fans&page_id=<your page id>
It will return up to 500 of the most recent likes.
http://www.facebook.com/browse/?type=page_fans&page_id=<your page id>&start=400
Each page will give you 100 fans. Change start value to (0, 100, 200, 300, 400) to get the first 500. If start is >= 401, the page will be blank :(
Fastest way is this :
public static string GetHash(string input)
{
return string.Join("", (new SHA1Managed().ComputeHash(Encoding.UTF8.GetBytes(input))).Select(x => x.ToString("X2")).ToArray());
}
For Small character output use x2
in replace of of X2
Use FileUtils from Apache commons.
listFiles
public static Collection<File> listFiles(File directory,
String[] extensions,
boolean recursive)
Finds files within a given directory (and optionally its subdirectories) which match an array of extensions.
Parameters:
directory - the directory to search in
extensions - an array of extensions, ex. {"java","xml"}. If this parameter is null, all files are returned.
recursive - if true all subdirectories are searched as well
Returns:
an collection of java.io.File with the matching files
This only covers a simple case:
a = ‘Quattro TT’
print tuple(a)
If you use only delimiter like ‘,’, then it could work.
I used a string from configparser
like so:
list_users = (‘test1’, ‘test2’, ‘test3’)
and the i get from file
tmp = config_ob.get(section_name, option_name)
>>>”(‘test1’, ‘test2’, ‘test3’)”
In this case the above solution does not work. However, this does work:
def fot_tuple(self, some_str):
# (‘test1’, ‘test2’, ‘test3’)
some_str = some_str.replace(‘(‘, ”)
# ‘test1’, ‘test2’, ‘test3’)
some_str = some_str.replace(‘)’, ”)
# ‘test1’, ‘test2’, ‘test3’
some_str = some_str.replace(“‘, ‘”, ‘,’)
# ‘test1,test2,test3’
some_str = some_str.replace(“‘”, ‘,’)
# test1,test2,test3
# and now i could convert to tuple
return tuple(item for item in some_str.split(‘,’) if item.strip())
Shadow using UIView Extension Swift 4
I would like to add one more line with selected answer!
When we rasterizing the layer, It needs to be set to 2.0 for retina displays. Otherwise label text or images on that view will be blurry. So we need to add rasterizationScale
also.
extension UIView {
func dropShadow() {
layer.masksToBounds = false
layer.shadowColor = UIColor.black.cgColor
layer.shadowOpacity = 0.5
layer.shadowOffset = CGSize(width: -1, height: 1)
layer.shadowRadius = 1
layer.shadowPath = UIBezierPath(rect: self.bounds).cgPath
layer.shouldRasterize = true
layer.rasterizationScale = UIScreen.main.scale
}
}
You have mixed 2 standard.
The error is in $header = "Content-Type: multipart/form-data; boundary='123456f'";
The function http_build_query($filedata)
is only for "Content-Type: application/x-www-form-urlencoded", or none.
Related: While constructing a class, def _repr_html_(self): ...
can be used to create a custom HTML representation of its instances:
class Foo:
def _repr_html_(self):
return "Hello <b>World</b>!"
o = Foo()
o
will render as:
Hello World!
For more info refer to IPython's docs.
An advanced example:
from html import escape # Python 3 only :-)
class Todo:
def __init__(self):
self.items = []
def add(self, text, completed):
self.items.append({'text': text, 'completed': completed})
def _repr_html_(self):
return "<ol>{}</ol>".format("".join("<li>{} {}</li>".format(
"?" if item['completed'] else "?",
escape(item['text'])
) for item in self.items))
my_todo = Todo()
my_todo.add("Buy milk", False)
my_todo.add("Do homework", False)
my_todo.add("Play video games", True)
my_todo
Will render:
- ? Buy milk
- ? Do homework
- ? Play video games
padding-left
is what controls the indentation of ul
not margin-left
.
Compare: Here's setting padding-left
to 0
, notice all the indentation disappears.
ul {
padding-left: 0;
}
_x000D_
<ul>
<li>section a
<ul>
<li>one</li>
<li>two</li>
<li>three</li>
</ul>
</li>
</ul>
<ul>
<li>section b
<ul>
<li>one</li>
<li>two</li>
<li>three</li>
</ul>
</li>
</ul>
_x000D_
and here's setting margin-left
to 0px
. Notice the indentation does NOT change.
ul {
margin-left: 0;
}
_x000D_
<ul>
<li>section a
<ul>
<li>one</li>
<li>two</li>
<li>three</li>
</ul>
</li>
</ul>
<ul>
<li>section b
<ul>
<li>one</li>
<li>two</li>
<li>three</li>
</ul>
</li>
</ul>
_x000D_
For me, the node
binary is in PATH
and I can run it from the terminal (iTerm or Terminal), and the Terminal apps are set to use zsh
If you are on a Mac, with iTerm and Zsh, please use the following VSCode settings for Node to work.
After this change, you can get rid of this line from your launch.json
config file. (the debug settings in VSCode)
"runtimeExecutable": "/usr/local/bin/node"
If this doesn't work, make sure you choose the default shell as zsh
. To do this,
It is used to find the how many rows contain data in a worksheet that contains data in the column "A". The full usage is
lastRowIndex = ws.Cells(ws.Rows.Count, "A").End(xlUp).row
Where ws
is a Worksheet object. In the questions example it was implied that the statement was inside a With
block
With ws
lastRowIndex = .Cells(.Rows.Count, "A").End(xlUp).row
End With
ws.Rows.Count
returns the total count of rows in the worksheet (1048576 in Excel 2010)..Cells(.Rows.Count, "A")
returns the bottom most cell in column "A" in the worksheetThen there is the End
method. The documentation is ambiguous as to what it does.
Returns a Range object that represents the cell at the end of the region that contains the source range
Particularly it doesn't define what a "region" is. My understanding is a region is a contiguous range of non-empty cells. So the expected usage is to start from a cell in a region and find the last cell in that region in that direction from the original cell. However there are multiple exceptions for when you don't use it like that:
rng.cells(1,1)
. So Range.End
is not a trivial function.
.row
returns the row index of that cell.Like this, using .limit():
var q = models.Post.find({published: true}).sort('date', -1).limit(20);
q.execFind(function(err, posts) {
// `posts` will be of length 20
});
after hardware check on the server and it was found out that memory had gone bad, replaced the memory and the server is now fully accessible.
layout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:id="@+id/layoutTest"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
</LinearLayout>
</RelativeLayout>
class file:
setContentView(R.layout.layout_dynamic);
layoutTest=(LinearLayout)findViewById(R.id.layoutTest);
TextView textView = new TextView(getApplicationContext());
textView.setText("testDynamic textView");
layoutTest.addView(textView);
The query component is indicated by the first ?
in a URI. "Query string" might be a synonym (this term is not used in the URI standard).
Some examples for HTTP URIs with query components:
http://example.com/foo?bar
http://example.com/foo/foo/foo?bar/bar/bar
http://example.com/?bar
http://example.com/?@bar._=???/1:
http://example.com/?bar1=a&bar2=b
(list of allowed characters in the query component)
The "format" of the query component is up to the URI authors. A common convention (but nothing more than a convention, as far as the URI standard is concerned¹) is to use the query component for key-value pairs, aka. parameters, like in the last example above: bar1=a&bar2=b
.
Such parameters could also appear in the other URI components, i.e., the path² and the fragment. As far as the URI standard is concerned, it’s up to you which component and which format to use.
Example URI with parameters in the path, the query, and the fragment:
http://example.com/foo;key1=value1?key2=value2#key3=value3
¹ The URI standard says about the query component:
[…] query components are often used to carry identifying information in the form of "key=value" pairs […]
² The URI standard says about the path component:
[…] the semicolon (";") and equals ("=") reserved characters are often used to delimit parameters and parameter values applicable to that segment. The comma (",") reserved character is often used for similar purposes.
It is very simple just look at their names @RequestParam it consist of two parts one is "Request" which means it is going to deal with request and other part is "Param" which itself makes sense it is going to map only the parameters of requests to java objects. Same is the case with @RequestBody it is going to deal with the data that has been arrived with request like if client has send json object or xml with request at that time @requestbody must be used.
In my case, display: block was breaking the design as intended.
The max-width
property just saved me.
and for styling, you can use text-overflow: ellipsis
as well.
my code was
max-width: 255px
overflow:hidden
I m agree with @ReNjITh.R answer but If you want to display error message just beside textbox. Just like below
<html>
<head>
<script type="text/javascript">
function validate()
{
if(myform.fname.value.length==0)
{
document.getElementById('errfn').innerHTML="this is invalid name";
}
}
</script>
</head>
<body>
<form name="myform">
First_Name
<input type=text id=fname name=fname onblur="validate()" /><span id="errfn"></span>
<br> <br>
Last_Name
<input type=text id=lname name=lname onblur="validate()"/><br>
<input type=button value=check />
</form>
</body>
Follow this one
$teacher_id = '';
for ($i = 0; $i < count($data['teacher_id']); $i++) {
$teacher_id .= $data['teacher_id'][$i].',';
}
$teacher_id = rtrim($teacher_id, ',');
echo $teacher_id; exit;
Now you can use either of those options. And it is going to work in any case. Your color can be a HEX code, like this:
myView.setBackgroundResource(ContextCompat.getColor(context, Color.parseColor("#FFFFFF")));
A color resource, like this:
myView.setBackgroundResource(ContextCompat.getColor(context,R.color.blue_background));
Or a custom xml resource, like so:
myView.setBackgroundResource(R.drawable.my_custom_background);
Hope it helps!
yep - you can even nest the try catch statements as:
BEGIN TRY
SET @myFixDte = CONVERT(datetime, @myFixDteStr,101)
END TRY
BEGIN CATCH
BEGIN TRY
SET @myFixDte = CONVERT(datetime, @myFixDteStr,103)
END TRY
BEGIN CATCH
BEGIN TRY
SET @myFixDte = CONVERT(datetime, @myFixDteStr,104)
END TRY
BEGIN CATCH
SET @myFixDte = CONVERT(datetime, @myFixDteStr,105)
END CATCH
END CATCH END CATCH
In addition to the suggestions given, you can do this directly from your query like this -
SELECT ISNULL([Additional], -1) AS [Additional]
This way you can write the condition to check whether the field value is < 0 or >= 0.
When you cast a DateTime to an int it "truncates" at noon, you might want to strip the day out like so
cast(DATEADD(DAY, DATEDIFF(DAY, 0, created_date), 0) as int) as DayBucket
I think that the most elegant way to do it is to implement custom Flash Scope in Spring MVC.
the main idea for the flash scope is to store data from one controller till next redirect in second controller
Please refer to my answer on the custom scope question:
The only thing that is missing in this code is the following xml configuration:
<bean id="flashScopeInterceptor" class="com.vanilla.springMVC.scope.FlashScopeInterceptor" />
<bean id="handlerMapping" class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<property name="interceptors">
<list><ref bean="flashScopeInterceptor"/></list>
</property>
</bean>
Just another bit. in some case i found no result on all_tab_privs! i found it indeed on dba_tab_privs. I think so that this last table is better to check for any grant available on an object (in case of impact analysis). The statement becomes:
select * from dba_tab_privs where table_name = 'sequence_name';
Basically it should be
<textarea>something here with no spaces in the begining</textarea>
If there are some predefined spaces lets say due to code formatting like below
<textarea>.......
....some_variable
</textarea>
The spaces shown by dots keeps on adding on each submit.
Array.prototype.clear = function() {
this.length = 0;
};
And call it: array.clear();
This error message seems to come up in various situations.
In my case, on top of my application's Web.Config file I had an extra Web.Config file in the root folder (C:\Inetpub\www.root). Probably left there after some testing, I had forgotten all about it, and couldn't figure out what the problem was.
Removing it solved the problem for me.
While this doesn't directly answer the question, there is great book available for free which will help you learn the basics called ProGit. If you would prefer the dead-wood version to a collection of bits you can purchase it from Amazon.
I wrote the following code to convert an image from sdcard to a Base64 encoded string to send as a JSON object.And it works great:
String filepath = "/sdcard/temp.png";
File imagefile = new File(filepath);
FileInputStream fis = null;
try {
fis = new FileInputStream(imagefile);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
Bitmap bm = BitmapFactory.decodeStream(fis);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.JPEG, 100 , baos);
byte[] b = baos.toByteArray();
encImage = Base64.encodeToString(b, Base64.DEFAULT);
* This was edited to allow for children of the target class to trigger the events. See bottom of the answer for details. *
An alternative answer to add an event listener to a class where items are frequently being added and removed. This is inspired by jQuery's on
function where you can pass in a selector for a child element that the event is listening on.
var base = document.querySelector('#base'); // the container for the variable content
var selector = '.card'; // any css selector for children
base.addEventListener('click', function(event) {
// find the closest parent of the event target that
// matches the selector
var closest = event.target.closest(selector);
if (closest && base.contains(closest)) {
// handle class event
}
});
Fiddle: https://jsfiddle.net/u6oje7af/94/
This will listen for clicks on children of the base
element and if the target of a click has a parent matching the selector, the class event will be handled. You can add and remove elements as you like without having to add more click listeners to the individual elements. This will catch them all even for elements added after this listener was added, just like the jQuery functionality (which I imagine is somewhat similar under the hood).
This depends on the events propagating, so if you stopPropagation
on the event somewhere else, this may not work. Also, the closest
function has some compatibility issues with IE apparently (what doesn't?).
This could be made into a function if you need to do this type of action listening repeatedly, like
function addChildEventListener(base, eventName, selector, handler) {
base.addEventListener(eventName, function(event) {
var closest = event.target.closest(selector);
if (closest && base.contains(closest)) {
// passes the event to the handler and sets `this`
// in the handler as the closest parent matching the
// selector from the target element of the event
handler.call(closest, event);
}
});
}
=========================================
EDIT: This post originally used the matches
function for DOM elements on the event target, but this restricted the targets of events to the direct class only. It has been updated to use the closest
function instead, allowing for events on children of the desired class to trigger the events as well. The original matches
code can be found at the original fiddle:
https://jsfiddle.net/u6oje7af/23/
Change
try {
myNum = Integer.parseInt(myString.getText().toString());
} catch(NumberFormatException nfe) {
to
try {
myNum = Integer.parseInt(myString);
} catch(NumberFormatException nfe) {
SELECT tab.*,
row_number() OVER () as rnum
FROM tab;
Here's the relevant section in the docs.
P.S. This, in fact, fully matches the answer in the referenced question.
Here is my answer,
In row.model.ts
export interface Row {
otherProperty : type;
checked : bool;
otherProperty : type;
...
}
In .html
<tr class="even" *ngFor="let item of rows">
<input [checked]="item.checked" type="checkbox">
</tr>
In .ts
rows : Row[] = [];
update the rows in component.ts
The Bearer
authentication scheme is what you are looking for.
Is it related to bears?
Errr... No :)
According to the Oxford Dictionaries, here's the definition of bearer:
bearer /'b??r?/
noun
A person or thing that carries or holds something.
A person who presents a cheque or other order to pay money.
The first definition includes the following synonyms: messenger, agent, conveyor, emissary, carrier, provider.
And here's the definition of bearer token according to the RFC 6750:
Bearer Token
A security token with the property that any party in possession of the token (a "bearer") can use the token in any way that any other party in possession of it can. Using a bearer token does not require a bearer to prove possession of cryptographic key material (proof-of-possession).
The Bearer
authentication scheme is registered in IANA and originally defined in the RFC 6750 for the OAuth 2.0 authorization framework, but nothing stops you from using the Bearer
scheme for access tokens in applications that don't use OAuth 2.0.
Stick to the standards as much as you can and don't create your own authentication schemes.
An access token must be sent in the Authorization
request header using the Bearer
authentication scheme:
2.1. Authorization Request Header Field
When sending the access token in the
Authorization
request header field defined by HTTP/1.1, the client uses theBearer
authentication scheme to transmit the access token.For example:
GET /resource HTTP/1.1 Host: server.example.com Authorization: Bearer mF_9.B5f-4.1JqM
[...]
Clients SHOULD make authenticated requests with a bearer token using the
Authorization
request header field with theBearer
HTTP authorization scheme. [...]
In case of invalid or missing token, the Bearer
scheme should be included in the WWW-Authenticate
response header:
3. The WWW-Authenticate Response Header Field
If the protected resource request does not include authentication credentials or does not contain an access token that enables access to the protected resource, the resource server MUST include the HTTP
WWW-Authenticate
response header field [...].All challenges defined by this specification MUST use the auth-scheme value
Bearer
. This scheme MUST be followed by one or more auth-param values. [...].For example, in response to a protected resource request without authentication:
HTTP/1.1 401 Unauthorized WWW-Authenticate: Bearer realm="example"
And in response to a protected resource request with an authentication attempt using an expired access token:
HTTP/1.1 401 Unauthorized WWW-Authenticate: Bearer realm="example", error="invalid_token", error_description="The access token expired"
I'm not sure if I understood correctly, but is this what you mean?
out.write("this is line 1");
out.newLine();
out.write("this is line 2");
out.newLine();
...
The following will cover all browsers worth covering:
text-shadow: 0 0 2px #fff; /* Firefox 3.5+, Opera 9+, Safari 1+, Chrome, IE10 */
filter: progid:DXImageTransform.Microsoft.Glow(Color=#ffffff,Strength=1); /* IE<10 */
def quicksort(items):
if not len(items) > 1:
return items
items, pivot = partition(items)
return quicksort(items[:pivot]) + [items[pivot]] + quicksort(items[pivot + 1:])
def partition(items):
i = 1
pivot = 0
for j in range(1, len(items)):
if items[j] <= items[pivot]:
items[i], items[j] = items[j], items[i]
i += 1
items[i - 1], items[pivot] = items[pivot], items[i - 1]
return items, i - 1
The database uses the same lock for all #temp tables so if you are using a lot you will get deadlock problems. It is better to use @ table variables for concurrency.
Just use the appropriate method: String#split()
.
String string = "004-034556";
String[] parts = string.split("-");
String part1 = parts[0]; // 004
String part2 = parts[1]; // 034556
Note that this takes a regular expression, so remember to escape special characters if necessary.
there are 12 characters with special meanings: the backslash
\
, the caret^
, the dollar sign$
, the period or dot.
, the vertical bar or pipe symbol|
, the question mark?
, the asterisk or star*
, the plus sign+
, the opening parenthesis(
, the closing parenthesis)
, and the opening square bracket[
, the opening curly brace{
, These special characters are often called "metacharacters".
So, if you want to split on e.g. period/dot .
which means "any character" in regex, use either backslash \
to escape the individual special character like so split("\\.")
, or use character class []
to represent literal character(s) like so split("[.]")
, or use Pattern#quote()
to escape the entire string like so split(Pattern.quote("."))
.
String[] parts = string.split(Pattern.quote(".")); // Split on period.
To test beforehand if the string contains certain character(s), just use String#contains()
.
if (string.contains("-")) {
// Split it.
} else {
throw new IllegalArgumentException("String " + string + " does not contain -");
}
Note, this does not take a regular expression. For that, use String#matches()
instead.
If you'd like to retain the split character in the resulting parts, then make use of positive lookaround. In case you want to have the split character to end up in left hand side, use positive lookbehind by prefixing ?<=
group on the pattern.
String string = "004-034556";
String[] parts = string.split("(?<=-)");
String part1 = parts[0]; // 004-
String part2 = parts[1]; // 034556
In case you want to have the split character to end up in right hand side, use positive lookahead by prefixing ?=
group on the pattern.
String string = "004-034556";
String[] parts = string.split("(?=-)");
String part1 = parts[0]; // 004
String part2 = parts[1]; // -034556
If you'd like to limit the number of resulting parts, then you can supply the desired number as 2nd argument of split()
method.
String string = "004-034556-42";
String[] parts = string.split("-", 2);
String part1 = parts[0]; // 004
String part2 = parts[1]; // 034556-42
Considering Ionic's ability to cache view elements and scope data mentioned above, this might be another way of doing, if you want to run the controller every time the view gets loaded. You can globally disable the caching mechanism used by ionic by doing:
$ionicConfigProvider.views.maxCache(0);
Else, the way I had it working for me was doing
$scope.$on("$ionicView.afterLeave", function () {
$ionicHistory.clearCache();
});
This is to clear the cache before leaving the view to re-run controller every time you enter back again.
Without defaultdict
, you can probably assign new values to unseen keys but you cannot modify it. For example:
import collections
d = collections.defaultdict(int)
for i in range(10):
d[i] += i
print(d)
# Output: defaultdict(<class 'int'>, {0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9})
import collections
d = {}
for i in range(10):
d[i] += i
print(d)
# Output: Traceback (most recent call last): File "python", line 4, in <module> KeyError: 0
Use this function to get the client MAC address:
function GetClientMac(){
$macAddr=false;
$arp=`arp -n`;
$lines=explode("\n", $arp);
foreach($lines as $line){
$cols=preg_split('/\s+/', trim($line));
if ($cols[0]==$_SERVER['REMOTE_ADDR']){
$macAddr=$cols[2];
}
}
return $macAddr;
}
Use the below one, it's way better than the history.go(-1)
.
<a href="#" onclick="location.href = document.referrer; return false;"> Go TO Previous Page</a>
Only stopped containers can be listed using:
docker ps --filter "status=exited"
or
docker ps -f "status=exited"
The JSON sample you provided is not valid. Check it online with this JSON Validator http://jsonlint.com/. You need to remove the extra comma on line 59.
One you have valid json you can use this code to convert it to an array.
json_decode($json, true);
Array
(
[bpath] => http://www.sampledomain.com/
[clist] => Array
(
[0] => Array
(
[cid] => 11
[display_type] => grid
[ctitle] => abc
[acount] => 71
[alist] => Array
(
[0] => Array
(
[aid] => 6865
[adate] => 2 Hours ago
[atitle] => test
[adesc] => test desc
[aimg] =>
[aurl] => ?nid=6865
[weburl] => news.php?nid=6865
[cmtcount] => 0
)
[1] => Array
(
[aid] => 6857
[adate] => 20 Hours ago
[atitle] => test1
[adesc] => test desc1
[aimg] =>
[aurl] => ?nid=6857
[weburl] => news.php?nid=6857
[cmtcount] => 0
)
)
)
[1] => Array
(
[cid] => 1
[display_type] => grid
[ctitle] => test1
[acount] => 2354
[alist] => Array
(
[0] => Array
(
[aid] => 6851
[adate] => 1 Days ago
[atitle] => test123
[adesc] => test123 desc
[aimg] =>
[aurl] => ?nid=6851
[weburl] => news.php?nid=6851
[cmtcount] => 7
)
[1] => Array
(
[aid] => 6847
[adate] => 2 Days ago
[atitle] => test12345
[adesc] => test12345 desc
[aimg] =>
[aurl] => ?nid=6847
[weburl] => news.php?nid=6847
[cmtcount] => 7
)
)
)
)
)
In Xcode 6.3 and later (including Xcode 7 and 8), console output appears in the Debug area at the bottom of the playground window (similar to where it appears in a project). To show it:
Menu: View > Debug Area > Show Debug Area (??Y)
Click the middle button of the workspace-layout widget in the toolbar
Click the triangle next to the timeline at the bottom of the window
Anything that writes to the console, including Swift's print
statement (renamed from println
in Swift 2 beta) shows up there.
In earlier Xcode 6 versions (which by now you probably should be upgrading from anyway), show the Assistant editor (e.g. by clicking the little circle next to a bit in the output area). Console output appears there.
myid.className
console.log( myid.className )
_x000D_
<div id="myid" class="myclass"></div>
_x000D_
I'd start by the distinction that exists in Scala between def, val and var.
def - defines an immutable label for the right side content which is lazily evaluated - evaluate by name.
val - defines an immutable label for the right side content which is eagerly/immediately evaluated - evaluated by value.
var - defines a mutable variable, initially set to the evaluated right side content.
Example, def
scala> def something = 2 + 3 * 4
something: Int
scala> something // now it's evaluated, lazily upon usage
res30: Int = 14
Example, val
scala> val somethingelse = 2 + 3 * 5 // it's evaluated, eagerly upon definition
somethingelse: Int = 17
Example, var
scala> var aVariable = 2 * 3
aVariable: Int = 6
scala> aVariable = 5
aVariable: Int = 5
According to above, labels from def and val cannot be reassigned, and in case of any attempt an error like the below one will be raised:
scala> something = 5 * 6
<console>:8: error: value something_= is not a member of object $iw
something = 5 * 6
^
When the class is defined like:
scala> class Person(val name: String, var age: Int)
defined class Person
and then instantiated with:
scala> def personA = new Person("Tim", 25)
personA: Person
an immutable label is created for that specific instance of Person (i.e. 'personA'). Whenever the mutable field 'age' needs to be modified, such attempt fails:
scala> personA.age = 44
personA.age: Int = 25
as expected, 'age' is part of a non-mutable label. The correct way to work on this consists in using a mutable variable, like in the following example:
scala> var personB = new Person("Matt", 36)
personB: Person = Person@59cd11fe
scala> personB.age = 44
personB.age: Int = 44 // value re-assigned, as expected
as clear, from the mutable variable reference (i.e. 'personB') it is possible to modify the class mutable field 'age'.
I would still stress the fact that everything comes from the above stated difference, that has to be clear in mind of any Scala programmer.
Colin is correct that a profile should be used. However, his answer hard-codes the target directory in the profile. An alternate solution would be to add a profile like this:
<profile>
<id>alternateBuildDir</id>
<activation>
<property>
<name>alt.build.dir</name>
</property>
</activation>
<build>
<directory>${alt.build.dir}</directory>
</build>
</profile>
Doing so would have the effect of changing the build directory to whatever is given by the alt.build.dir property, which can be given in a POM, in the user's settings, or on the command line. If the property is not present, the compilation will happen in the normal target directory.
This is a classpath issue when running an executable jar as follows:
java -jar myfile.jar
One way to fix the problem is to set the classpath on the java command line as follows, adding the missing log4j jar:
java -cp myfile.jar:log4j.jar:otherjar.jar com.abc.xyz.MyMainClass
Of course the best solution is to add the classpath into the jar manifest so that the we can use the "-jar" java option:
<jar jarfile="myfile.jar">
..
..
<manifest>
<attribute name="Main-Class" value="com.abc.xyz.MyMainClass"/>
<attribute name="Class-Path" value="log4j.jar otherjar.jar"/>
</manifest>
</jar>
The following answer demonstrates how you can use the manifestclasspath to automate the seeting of the classpath manifest entry
Use the modulus operator %
, it returns the remainder.
int a = 5;
int b = 3;
if (a % b != 0) {
printf("The remainder is: %i", a%b);
}
This will give you a very compact list of all messages for any specified time.
git log --since=1/11/2011 --until=28/11/2011 --no-merges --format=%B > CHANGELOG.TXT
Given the ease of use of Access, I don't see a compelling reason to use Excel at all other than to export data for number crunching. Access is designed to easily build data forms and, in my opinion, will be orders of magnitude easier and less time-consuming than using Excel. A few hours to learn the Access object model will pay for itself many times over in terms of time and effort.
I know it's old news but to add my two cents. By default I use the commands LIKE[cd]
rather than just [c]
. The [d]
compares letters with accent symbols. This works especially well in my Warcraft App where people spell their name "Vòódòó" making it nearly impossible to search for their name in a tableview. The [d]
strips their accent symbols during the predicate. So a predicate of @"name LIKE[CD] %@", object.name
where object.name == @"voodoo"
will return the object containing the name Vòódòó.
From the Apple documentation: like[cd] means “case- and diacritic-insensitive like.”) For a complete description of the string syntax and a list of all the operators available, see Predicate Format String Syntax.
C#3 - This returns false as soon as a char counted from the beginning fails to match its equivalent at the end:
static bool IsPalindrome(this string input)
{
char[] letters = input.ToUpper().ToCharArray();
int i = 0;
while( i < letters.Length / 2 )
if( letters[i] != letters[letters.Length - ++i] )
return false;
return true;
}
Here is another option.
function getOrdinalSuffix(day) {_x000D_
_x000D_
if(/^[2-3]?1$/.test(day)){_x000D_
return 'st';_x000D_
} else if(/^[2-3]?2$/.test(day)){_x000D_
return 'nd';_x000D_
} else if(/^[2-3]?3$/.test(day)){_x000D_
return 'rd';_x000D_
} else {_x000D_
return 'th';_x000D_
}_x000D_
_x000D_
}_x000D_
_x000D_
console.log(getOrdinalSuffix('1'));_x000D_
console.log(getOrdinalSuffix('13'));_x000D_
console.log(getOrdinalSuffix('22'));_x000D_
console.log(getOrdinalSuffix('33'));
_x000D_
Notice the exception for the teens? Teens are so akward!
Edit: Forgot about 11th and 12th
add this line end of php.ini
openssl.cafile=/opt/lampp/share/curl/curl-ca-bundle.crt
may be curl path cannot be identified by PHP
Because input
's width
is controlled by it's size
attribute, this is how I initialize an input
width
according to its content:
<input type="text" class="form-list-item-name" [size]="myInput.value.length" #myInput>
To calculate the mean, loop through the list/array of numbers, keeping track of the partial sums and the length. Then return the sum/length
.
double sum = 0.0;
int length = 0;
for( double number : numbers ) {
sum += number;
length++;
}
return sum/length;
Variance is calculated similarly. Standard deviation is simply the square root of the variance:
double stddev = Math.sqrt( variance );
I found this question while trying to get the shortest Pythonic generation of this sequence (later realizing I had seen a similar one in a Python Enhancement Proposal), and I haven't noticed anyone else coming up with my specific solution (although the top answer gets close, but still less elegant), so here it is, with comments describing the first iteration, because I think that may help readers understand:
def fib():
a, b = 0, 1
while True: # First iteration:
yield a # yield 0 to start with and then
a, b = b, a + b # a will now be 1, and b will also be 1, (0 + 1)
and usage:
for index, fibonacci_number in zip(range(10), fib()):
print('{i:3}: {f:3}'.format(i=index, f=fibonacci_number))
prints:
0: 0
1: 1
2: 1
3: 2
4: 3
5: 5
6: 8
7: 13
8: 21
9: 34
10: 55
(For attribution purposes, I recently noticed a similar implementation in the Python documentation on modules, even using the variables a
and b
, which I now recall having seen before writing this answer. But I think this answer demonstrates better usage of the language.)
The Online Encyclopedia of Integer Sequences defines the Fibonacci Sequence recursively as
F(n) = F(n-1) + F(n-2) with F(0) = 0 and F(1) = 1
Succinctly defining this recursively in Python can be done as follows:
def rec_fib(n):
'''inefficient recursive function as defined, returns Fibonacci number'''
if n > 1:
return rec_fib(n-1) + rec_fib(n-2)
return n
But this exact representation of the mathematical definition is incredibly inefficient for numbers much greater than 30, because each number being calculated must also calculate for every number below it. You can demonstrate how slow it is by using the following:
for i in range(40):
print(i, rec_fib(i))
It can be memoized to improve speed (this example takes advantage of the fact that a default keyword argument is the same object every time the function is called, but normally you wouldn't use a mutable default argument for exactly this reason):
def mem_fib(n, _cache={}):
'''efficiently memoized recursive function, returns a Fibonacci number'''
if n in _cache:
return _cache[n]
elif n > 1:
return _cache.setdefault(n, mem_fib(n-1) + mem_fib(n-2))
return n
You'll find the memoized version is much faster, and will quickly exceed your maximum recursion depth before you can even think to get up for coffee. You can see how much faster it is visually by doing this:
for i in range(40):
print(i, mem_fib(i))
(It may seem like we can just do the below, but it actually doesn't let us take advantage of the cache, because it calls itself before setdefault is called.)
def mem_fib(n, _cache={}):
'''don't do this'''
if n > 1:
return _cache.setdefault(n, mem_fib(n-1) + mem_fib(n-2))
return n
As I have been learning Haskell, I came across this implementation in Haskell:
fib@(0:tfib) = 0:1: zipWith (+) fib tfib
The closest I think I can get to this in Python at the moment is:
from itertools import tee
def fib():
yield 0
yield 1
# tee required, else with two fib()'s algorithm becomes quadratic
f, tf = tee(fib())
next(tf)
for a, b in zip(f, tf):
yield a + b
This demonstrates it:
[f for _, f in zip(range(999), fib())]
It can only go up to the recursion limit, though. Usually, 1000, whereas the Haskell version can go up to the 100s of millions, although it uses all 8 GB of my laptop's memory to do so:
> length $ take 100000000 fib
100000000
A commenter asks:
Question for the Fib() function which is based on iterator: what if you want to get the nth, for instance 10th fib number?
The itertools documentation has a recipe for this:
from itertools import islice
def nth(iterable, n, default=None):
"Returns the nth item or a default value"
return next(islice(iterable, n, None), default)
and now:
>>> nth(fib(), 10)
55
You can do some thing like this,
Initialize with empty array and assign the values later
String importRt = "23:43 43:34";
if(null != importRt) {
importArray = Arrays.stream(importRt.split(" "))
.map(String::trim)
.toArray(String[]::new);
}
System.out.println(Arrays.toString(exportImportArray));
Hope it helps..
This one is work for me:-
/^\(?(\d{3})\)?[-\. ]?(\d{3})[-\. ]?(\d{4})$/
Size on disk might be different, if you move the file to another filesystem (FAT16, NTFS, EXT3, etc)
As other answerers have said, this will give you the size in bytes, not the size on disk.
I was having the same problem while running bulk tests for an assignment. Turns out when I relocated some iostream operations (printing to console) from class constructor to a method in class it was solved.
I assume it was something to do with iostream manipulations in the constructor.
Here is the fix:
// Before
CommandPrompt::CommandPrompt() : afs(nullptr), aff(nullptr) {
cout << "Some text I was printing.." << endl;
};
// After
CommandPrompt::CommandPrompt() : afs(nullptr), aff(nullptr) {
};
Please feel free to explain more what the error is behind the scenes since it goes beyond my cpp knowledge.
I do not work with google android but I think you'll find it's not that hard to get this working. If you read the relevant bit of the java tutorial you'll see that a registered cookiehandler gets callbacks from the HTTP code.
So if there is no default (have you checked if CookieHandler.getDefault()
really is null?) then you can simply extend CookieHandler, implement put/get and make it work pretty much automatically. Be sure to consider concurrent access and the like if you go that route.
edit: Obviously you'd have to set an instance of your custom implementation as the default handler through CookieHandler.setDefault()
to receive the callbacks. Forgot to mention that.
if val is not None:
# ...
is the Pythonic idiom for testing that a variable is not set to None
. This idiom has particular uses in the case of declaring keyword functions with default parameters. is
tests identity in Python. Because there is one and only one instance of None
present in a running Python script/program, is
is the optimal test for this. As Johnsyweb points out, this is discussed in PEP 8 under "Programming Recommendations".
As for why this is preferred to
if not (val is None):
# ...
this is simply part of the Zen of Python: "Readability counts." Good Python is often close to good pseudocode.
Here is some code:
private void dgvStandingOrder_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
if (dgvStandingOrder.Columns[e.ColumnIndex].Name == "IsSelected" && dgvStandingOrder.CurrentCell is DataGridViewCheckBoxCell)
{
bool isChecked = (bool)dgvStandingOrder[e.ColumnIndex, e.RowIndex].EditedFormattedValue;
if (isChecked == false)
{
dgvStandingOrder.Rows[e.RowIndex].Cells["Status"].Value = "";
}
dgvStandingOrder.EndEdit();
}
}
private void dgvStandingOrder_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
dgvStandingOrder.CommitEdit(DataGridViewDataErrorContexts.Commit);
}
private void dgvStandingOrder_CurrentCellDirtyStateChanged(object sender, EventArgs e)
{
if (dgvStandingOrder.CurrentCell is DataGridViewCheckBoxCell)
{
dgvStandingOrder.CommitEdit(DataGridViewDataErrorContexts.Commit);
}
}
For Windows, you can also whitelist your extension through Windows policies. The full steps are details in this answer, but there are quicker steps:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\ExtensionInstallWhitelist
.For instance, in order to whitelist 2 extensions with ID aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
and bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
, create a string value with name 1
and value aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
, and a second value with name 2
and value bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
. This can be sum up by this registry file:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome]
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\ExtensionInstallWhitelist]
"1"="aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"2"="bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
EDIT: actually, Chromium docs also indicate how to do it for other OS.
If you want to add an attribute, and not an element, you have to say so:
XElement root = new XElement("Snippet");
root.Add(new XAttribute("name", "name goes here"));
root.Add(new XElement("SnippetCode", "SnippetCode"));
The code above produces the following XML element:
<Snippet name="name goes here">
<SnippetCode>SnippetCode</SnippetCode>
</Snippet>
As far as I know you can't do that, I may be wrong. However I'd do this with php, generate a JPEG using php standard functions and then display the image, should not be a very hard job, however depends on how flashy the contents of the DIV are
To reference a package and remove various "keys", try this
db['name1.name2.name3.Properties'].remove([
{
"key" : "name_key1"
},
{
"key" : "name_key2"
},
{
"key" : "name_key3"
}
)]
You can safely delete the WSDL cache files. If you wish to prevent future caching, use:
ini_set("soap.wsdl_cache_enabled", 0);
or dynamically:
$client = new SoapClient('http://somewhere.com/?wsdl', array('cache_wsdl' => WSDL_CACHE_NONE) );
Nowadays, in Python 2.7 and up, you can use a dict comprehension:
{k: v for k, v in points.iteritems() if v[0] < 5 and v[1] < 5}
And in Python 3:
{k: v for k, v in points.items() if v[0] < 5 and v[1] < 5}
So simple you can use case statement here.
CASE WHEN ISSUE_DIVISION = ISSUE_DIVISION_2 THEN
CASE WHEN ISSUE_DIVISION is null then "Null Value found" //give your option
Else 1 End
ELSE 0 END As Issue_Division_Result
You can chain your where
s directly, without function(q)
. There's also a nice date handling package in laravel, called Carbon. So you could do something like:
$projects = Project::where('recur_at', '>', Carbon::now())
->where('recur_at', '<', Carbon::now()->addWeek())
->where('status', '<', 5)
->where('recur_cancelled', '=', 0)
->get();
Just make sure you require Carbon in composer and you're using Carbon namespace (use Carbon\Carbon;) and it should work.
EDIT: As Joel said, you could do:
$projects = Project::whereBetween('recur_at', array(Carbon::now(), Carbon::now()->addWeek()))
->where('status', '<', 5)
->where('recur_cancelled', '=', 0)
->get();
Here is example of pseudo-random generator when neither $RANDOM nor /dev/urandom is available
echo $(date +%S) | grep -o .$ | sed s/0/10/
If you want to print the bytes as chars you can use the String constructor.
byte[] bytes = new byte[] { -1, -128, 1, 127 };
System.out.println(new String(bytes, 0));
For a pure numpy implementation of Cartesian product of 1D arrays (or flat python lists), just use meshgrid()
, roll the axes with transpose()
, and reshape to the desired ouput:
def cartprod(*arrays):
N = len(arrays)
return transpose(meshgrid(*arrays, indexing='ij'),
roll(arange(N + 1), -1)).reshape(-1, N)
Note this has the convention of last axis changing fastest ("C style" or "row-major").
In [88]: cartprod([1,2,3], [4,8], [100, 200, 300, 400], [-5, -4])
Out[88]:
array([[ 1, 4, 100, -5],
[ 1, 4, 100, -4],
[ 1, 4, 200, -5],
[ 1, 4, 200, -4],
[ 1, 4, 300, -5],
[ 1, 4, 300, -4],
[ 1, 4, 400, -5],
[ 1, 4, 400, -4],
[ 1, 8, 100, -5],
[ 1, 8, 100, -4],
[ 1, 8, 200, -5],
[ 1, 8, 200, -4],
[ 1, 8, 300, -5],
[ 1, 8, 300, -4],
[ 1, 8, 400, -5],
[ 1, 8, 400, -4],
[ 2, 4, 100, -5],
[ 2, 4, 100, -4],
[ 2, 4, 200, -5],
[ 2, 4, 200, -4],
[ 2, 4, 300, -5],
[ 2, 4, 300, -4],
[ 2, 4, 400, -5],
[ 2, 4, 400, -4],
[ 2, 8, 100, -5],
[ 2, 8, 100, -4],
[ 2, 8, 200, -5],
[ 2, 8, 200, -4],
[ 2, 8, 300, -5],
[ 2, 8, 300, -4],
[ 2, 8, 400, -5],
[ 2, 8, 400, -4],
[ 3, 4, 100, -5],
[ 3, 4, 100, -4],
[ 3, 4, 200, -5],
[ 3, 4, 200, -4],
[ 3, 4, 300, -5],
[ 3, 4, 300, -4],
[ 3, 4, 400, -5],
[ 3, 4, 400, -4],
[ 3, 8, 100, -5],
[ 3, 8, 100, -4],
[ 3, 8, 200, -5],
[ 3, 8, 200, -4],
[ 3, 8, 300, -5],
[ 3, 8, 300, -4],
[ 3, 8, 400, -5],
[ 3, 8, 400, -4]])
If you want to change the first axis fastest ("FORTRAN style" or "column-major"), just change the order
parameter of reshape()
like this: reshape((-1, N), order='F')
From here:
One way to conserve system resources is to configure idle time-out settings for the worker processes in an application pool. When these settings are configured, a worker process will shut down after a specified period of inactivity. The default value for idle time-out is 20 minutes.
Also check Why is the IIS default app pool recycle set to 1740 minutes?
If you have a just a few sites on your server and you want them to always load fast then set this to zero. Otherwise, when you have 20 minutes without any traffic then the app pool will terminate so that it can start up again on the next visit. The problem is that the first visit to an app pool needs to create a new w3wp.exe worker process which is slow because the app pool needs to be created, ASP.NET or another framework needs to be loaded, and then your application needs to be loaded. That can take a few seconds. Therefore I set that to 0 every chance I have, unless it’s for a server that hosts a lot of sites that don’t always need to be running.
EDIT Summary and reccomendations
Using a for each cell in range
construct is not in itself slow. What is slow is repeated access to Excel in the loop (be it reading or writing cell values, format etc, inserting/deleting rows etc).
What is too slow depends entierly on your needs. A Sub that takes minutes to run might be OK if only used rarely, but another that takes 10s might be too slow if run frequently.
So, some general advice:
for index = max to min step -1
)value
, you are stuck with cell referenceseg (not tested!)
Dim rngToDelete as range
for each rw in rng.rows
if need to delete rw then
if rngToDelete is nothing then
set rngToDelete = rw
else
set rngToDelete = Union(rngToDelete, rw)
end if
endif
next
rngToDelete.EntireRow.Delete
Original post
Conventional wisdom says that looping through cells is bad and looping through a variant array is good. I too have been an advocate of this for some time. Your question got me thinking, so I did some short tests with suprising (to me anyway) results:
test data set: a simple list in cells A1
.. A1000000
(thats 1,000,000 rows)
Test case 1: loop an array
Dim v As Variant
Dim n As Long
T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
v = r
For n = LBound(v, 1) To UBound(v, 1)
'i = i + 1
'i = r.Cells(n, 1).Value 'i + 1
Next
Debug.Print "Array Time = " & (GetTickCount - T1) / 1000#
Debug.Print "Array Count = " & Format(n, "#,###")
Result:
Array Time = 0.249 sec
Array Count = 1,000,001
Test Case 2: loop the range
T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
For Each c In r
Next c
Debug.Print "Range Time = " & (GetTickCount - T1) / 1000#
Debug.Print "Range Count = " & Format(r.Cells.Count, "#,###")
Result:
Range Time = 0.296 sec
Range Count = 1,000,000
So,looping an array is faster but only by 19% - much less than I expected.
Test 3: loop an array with a cell reference
T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
v = r
For n = LBound(v, 1) To UBound(v, 1)
i = r.Cells(n, 1).Value
Next
Debug.Print "Array Time = " & (GetTickCount - T1) / 1000# & " sec"
Debug.Print "Array Count = " & Format(i, "#,###")
Result:
Array Time = 5.897 sec
Array Count = 1,000,000
Test case 4: loop range with a cell reference
T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
For Each c In r
i = c.Value
Next c
Debug.Print "Range Time = " & (GetTickCount - T1) / 1000# & " sec"
Debug.Print "Range Count = " & Format(r.Cells.Count, "#,###")
Result:
Range Time = 2.356 sec
Range Count = 1,000,000
So event with a single simple cell reference, the loop is an order of magnitude slower, and whats more, the range loop is twice as fast!
So, conclusion is what matters most is what you do inside the loop, and if speed really matters, test all the options
FWIW, tested on Excel 2010 32 bit, Win7 64 bit All tests with
ScreenUpdating
off,Calulation
manual, Events
disabled. To make it work without modifying your scripts:
I found a solution here: http://wahlnetwork.com/2015/11/17/solving-the-first-launch-configuration-error-with-powershells-invoke-webrequest-cmdlet/
The error is probably coming up because IE has not yet been launched for the first time, bringing up the window below. Launch it and get through that screen, and then the error message will not come up any more. No need to modify any scripts.
I do this quite a bit and thought I could add a simpler answer. I set it up as a simple class here, but I run this every evening to collect financial data on companies I'm following.
class WebPage
{
public static string Get(string uri)
{
string results = "N/A";
try
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(uri);
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
StreamReader sr = new StreamReader(resp.GetResponseStream());
results = sr.ReadToEnd();
sr.Close();
}
catch (Exception ex)
{
results = ex.Message;
}
return results;
}
}
In this case I pass in a url and it returns the page as HTML. If you want to do something different with the stream instead you can easily change this.
You use it like this:
string page = WebPage.Get("http://finance.yahoo.com/q?s=yhoo");
Just wanted to point out one thing missing in LazyOne's answer (I would have just commented under the answer but don't have enough rep)
In rule #2 for permanent redirect there is thing missing:
redirectType="Permanent"
So rule #2 should look like this:
<system.webServer>
<rewrite>
<rules>
<rule name="SpecificRedirect" stopProcessing="true">
<match url="^page$" />
<action type="Redirect" url="/page.html" redirectType="Permanent" />
</rule>
</rules>
</rewrite>
</system.webServer>
Edit
For more information on how to use the URL Rewrite Module see this excellent documentation: URL Rewrite Module Configuration Reference
In response to @kneidels question from the comments; To match the url: topic.php?id=39
something like the following could be used:
<system.webServer>
<rewrite>
<rules>
<rule name="SpecificRedirect" stopProcessing="true">
<match url="^topic.php$" />
<conditions logicalGrouping="MatchAll">
<add input="{QUERY_STRING}" pattern="(?:id)=(\d{2})" />
</conditions>
<action type="Redirect" url="/newpage/{C:1}" appendQueryString="false" redirectType="Permanent" />
</rule>
</rules>
</rewrite>
</system.webServer>
This will match topic.php?id=ab
where a
is any number between 0-9
and b is also any number between 0-9
.
It will then redirect to /newpage/xy
where xy
comes from the original url.
I have not tested this but it should work.
Your code looks pretty good.
Be careful, however, for your call to Range("H5")
is a shortcut command to Application.Range("H5")
, which is equivalent to Application.ActiveSheet.Range("H5")
. This could be fine, if the only changes are user-changes -- which is the most typical -- but it is possible for the worksheet's cell values to change when it is not the active sheet via programmatic changes, e.g. VBA.
With this in mind, I would utilize Target.Worksheet.Range("H5")
:
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Target.Worksheet.Range("H5")) Is Nothing Then Macro
End Sub
Or you can use Me.Range("H5")
, if the event handler is on the code page for the worksheet in question (it usually is):
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("H5")) Is Nothing Then Macro
End Sub
Hope this helps...
You can also try this simple one-liner code. Just call the alert method on onclick attribute.
<button id="some_id1" onclick="alert(this.id)"></button>
There are several other things you can do, such as selecting new fonts:
\documentclass[10pt,a4paper]{article}
% ... lots of packages e.g. babel, microtype, fontenc, inputenc &c.
\usepackage{color} % Leave this out if you care about B/W printing, obviously.
\usepackage{upquote} % Turns curly quotes in verbatim text into straight quotes.
% People who have to copy/paste code from the PDF output
% will love you for this. Or perhaps more accurately:
% They will not hate you/hate you less.
\usepackage{beramono} % Or some other package that provides a fixed width font. q.v.
% http://www.tug.dk/FontCatalogue/typewriterfonts.html
\usepackage{listings}
\lstset { % A rudimentary config that shows off some features.
language=Java,
basicstyle=\ttfamily, % Without beramono, we'd get cmtt, the teletype font.
commentstyle=\textit, % cmtt doesn't do italics. It might do slanted text though.
\keywordstyle= % Nor does cmtt do bold text.
\color{blue}\bfseries,
\tabsize=4 % Or whatever you use in your editor, I suppose.
}
\begin{document}
\begin{lstlisting}
public final int ourAnswer() { return 42; /* Our final answer */ }
\end{lstlisting}
\end{document}
There is no way to retrieve localStorage, sessionStorage or cookie values via javascript in the browser after they've been deleted via javascript.
If what you're really asking is if there is some other way (from outside the browser) to recover that data, that's a different question and the answer will entirely depend upon the specific browser and how it implements the storage of each of those types of data.
For example, Firefox stores cookies as individual files. When a cookie is deleted, its file is deleted. That means that the cookie can no longer be accessed via the browser. But, we know that from outside the browser, using system tools, the contents of deleted files can sometimes be retrieved.
If you wanted to look into this further, you'd have to discover how each browser stores each data type on each platform of interest and then explore if that type of storage has any recovery strategy.
I can't speak directly for ASP.NET MVC, but for ASP.NET Web Forms, the trick is to create a FormsAuthenticationTicket
and encrypt it into a cookie once the user has been authenticated. This way, you only have to call the database once (or AD or whatever you are using to perform your authentication), and each subsequent request will authenticate based on the ticket stored in the cookie.
A good article on this: http://www.ondotnet.com/pub/a/dotnet/2004/02/02/effectiveformsauth.html (broken link)
Edit:
Since the link above is broken, I would recommend LukeP's solution in his answer above: https://stackoverflow.com/a/10524305 - I would also suggest that the accepted answer be changed to that one.
Edit 2: An alternative for the broken link: https://web.archive.org/web/20120422011422/http://ondotnet.com/pub/a/dotnet/2004/02/02/effectiveformsauth.html
You are getting this error because the value cannot be found in the range. String or integer doesn't matter. Best thing to do in my experience is to do a check first to see if the value exists.
I used CountIf below, but there is lots of different ways to check existence of a value in a range.
Public Sub test()
Dim rng As Range
Dim aNumber As Long
aNumber = 666
Set rng = Sheet5.Range("B16:B615")
If Application.WorksheetFunction.CountIf(rng, aNumber) > 0 Then
rowNum = Application.WorksheetFunction.Match(aNumber, rng, 0)
Else
MsgBox aNumber & " does not exist in range " & rng.Address
End If
End Sub
ALTERNATIVE WAY
Public Sub test()
Dim rng As Range
Dim aNumber As Variant
Dim rowNum As Long
aNumber = "2gg"
Set rng = Sheet5.Range("B1:B20")
If Not IsError(Application.Match(aNumber, rng, 0)) Then
rowNum = Application.Match(aNumber, rng, 0)
MsgBox rowNum
Else
MsgBox "error"
End If
End Sub
OR
Public Sub test()
Dim rng As Range
Dim aNumber As Variant
Dim rowNum As Variant
aNumber = "2gg"
Set rng = Sheet5.Range("B1:B20")
rowNum = Application.Match(aNumber, rng, 0)
If Not IsError(rowNum) Then
MsgBox rowNum
Else
MsgBox "error"
End If
End Sub
While searching for the best method to sum an array, I wrote a performance test.
In Chrome, "reduce" seems to be vastly superior
I hope this helps
// Performance test, sum of an array
var array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var result = 0;
// Eval
console.time("eval");
for(var i = 0; i < 10000; i++) eval("result = (" + array.join("+") + ")");
console.timeEnd("eval");
// Loop
console.time("loop");
for(var i = 0; i < 10000; i++){
result = 0;
for(var j = 0; j < array.length; j++){
result += parseInt(array[j]);
}
}
console.timeEnd("loop");
// Reduce
console.time("reduce");
for(var i = 0; i < 10000; i++) result = array.reduce(function(pv, cv) { return pv + parseInt(cv); }, 0);
console.timeEnd("reduce");
// While
console.time("while");
for(var i = 0; i < 10000; i++){
j = array.length;
result = 0;
while(j--) result += array[i];
}
console.timeEnd("while");
eval: 5233.000ms
loop: 255.000ms
reduce: 70.000ms
while: 214.000ms
This is actually not an error... What happens here is that Mongo relies on a daemon in order to run the local database server, so in order to "fire up" the mongo server in your shell, you have to start the mongo service first.
For Fedora Linux (wich is the Distro I use) You have to run these commands:
1 sudo service mongod start
2 mongo
And there you have it! the server is going to run. Now, If you want Mongo service to Start when the system boots then you have to run:
sudo chkconfig --levels 235 mongod on
And that's all! If you do that, now in the shell you just have to type mongo in order to start the server but that's pretty much it, the problem is you have to start the SERVICE first and then the SERVER :)
P.S. The commands I posted might work on other linux distros as well, not just in fedora... In case not maybe you have to tweak some words depending on the distro you're using ;)
What you are looking for is probably this:
ImageView myImageView;
myImageView = mDialog.findViewById(R.id.image_id);
String src = "imageFileName"
int drawableId = this.getResources().getIdentifier(src, "drawable", context.getPackageName())
popupImageView.setImageResource(drawableId);
Let me know if this was helpful :)
Firstly there is an extra }
after every array object
.
Secondly "geodata" is a JSONArray
. So instead of JSONObject geoObject = jObject.getJSONObject("geodata");
you have to get it as JSONArray geoObject = jObject.getJSONArray("geodata");
Once you have the JSONArray
you can fetch each entry in the JSONArray
using geoObject.get(<index>)
.
I am using org.codehaus.jettison.json
.
Make sure you are sending the proper parameters too. This happened to me after switching to UI-Router.
To fix it, I changed $routeParams to use $stateParams in my controller. The main issue was that $stateParams was no longer sending a proper parameter to the resource.
The ServletContext#getRealPath()
is intented to convert a web content path (the path in the expanded WAR folder structure on the server's disk file system) to an absolute disk file system path.
The "/"
represents the web content root. I.e. it represents the web
folder as in the below project structure:
YourWebProject
|-- src
| :
|
|-- web
| |-- META-INF
| | `-- MANIFEST.MF
| |-- WEB-INF
| | `-- web.xml
| |-- index.jsp
| `-- login.jsp
:
So, passing the "/"
to getRealPath()
would return you the absolute disk file system path of the /web
folder of the expanded WAR file of the project. Something like /path/to/server/work/folder/some.war/
which you should be able to further use in File
or FileInputStream
.
Note that most starters don't seem to see/realize that you can actually pass the whole web content path to it and that they often use
String absolutePathToIndexJSP = servletContext.getRealPath("/") + "index.jsp"; // Wrong!
or even
String absolutePathToIndexJSP = servletContext.getRealPath("") + "index.jsp"; // Wronger!
instead of
String absolutePathToIndexJSP = servletContext.getRealPath("/index.jsp"); // Right!
Also note that even though you can write new files into it using FileOutputStream
, all changes (e.g. new files or edited files) will get lost whenever the WAR is redeployed; with the simple reason that all those changes are not contained in the original WAR file. So all starters who are attempting to save uploaded files in there are doing it wrong.
Moreover, getRealPath()
will always return null
or a completely unexpected path when the server isn't configured to expand the WAR file into the disk file system, but instead into e.g. memory as a virtual file system.
getRealPath()
is unportable; you'd better never use itUse getRealPath()
carefully. There are actually no sensible real world use cases for it. Based on my 20 years of Java EE experience, there has always been another way which is much better and more portable than getRealPath()
.
If all you actually need is to get an InputStream
of the web resource, better use ServletContext#getResourceAsStream()
instead, this will work regardless of the way how the WAR is expanded. So, if you for example want an InputStream
of index.jsp
, then do not do:
InputStream input = new FileInputStream(servletContext.getRealPath("/index.jsp")); // Wrong!
But instead do:
InputStream input = servletContext.getResourceAsStream("/index.jsp"); // Right!
Or if you intend to obtain a list of all available web resource paths, use ServletContext#getResourcePaths()
instead.
Set<String> resourcePaths = servletContext.getResourcePaths("/");
You can obtain an individual resource as URL
via ServletContext#getResource()
. This will return null
when the resource does not exist.
URL resource = servletContext.getResource(path);
Or if you intend to save an uploaded file, or create a temporary file, then see the below "See also" links.
The following worked for Laravel 7.x (and should probably work for any other version as well given the nature of the issue).
npm uninstall --save-dev cross-env
npm install -g cross-env
Just moving cross-env from being a local devDependency to a globally available package.
Try to use <>
instead of !=
.
Using the recursive matching in the PHP regex engine is massively faster than procedural matching of brackets. especially with longer strings.
http://php.net/manual/en/regexp.reference.recursive.php
e.g.
$patt = '!\( (?: (?: (?>[^()]+) | (?R) )* ) \)!x';
preg_match_all( $patt, $str, $m );
vs.
matchBrackets( $str );
function matchBrackets ( $str, $offset = 0 ) {
$matches = array();
list( $opener, $closer ) = array( '(', ')' );
// Return early if there's no match
if ( false === ( $first_offset = strpos( $str, $opener, $offset ) ) ) {
return $matches;
}
// Step through the string one character at a time storing offsets
$paren_score = -1;
$inside_paren = false;
$match_start = 0;
$offsets = array();
for ( $index = $first_offset; $index < strlen( $str ); $index++ ) {
$char = $str[ $index ];
if ( $opener === $char ) {
if ( ! $inside_paren ) {
$paren_score = 1;
$match_start = $index;
}
else {
$paren_score++;
}
$inside_paren = true;
}
elseif ( $closer === $char ) {
$paren_score--;
}
if ( 0 === $paren_score ) {
$inside_paren = false;
$paren_score = -1;
$offsets[] = array( $match_start, $index + 1 );
}
}
while ( $offset = array_shift( $offsets ) ) {
list( $start, $finish ) = $offset;
$match = substr( $str, $start, $finish - $start );
$matches[] = $match;
}
return $matches;
}
I have found two great resources to share, if anyone else come across this thread via Google, this may help them ( 2018 ). One is this video tutorial in which you'll see practically how service works, this is good for starters.
Link :- https://www.youtube.com/watch?v=p2ffzsCqrs8
Other is this website which will really help you with background audio player.
Link :- https://www.dev2qa.com/android-play-audio-file-in-background-service-example/
Good Luck :)
the possible errors would be...
1.you set the array list from the servelt in the session, not the in the request.
2.the array you set is null.
3.you redirect the page instead of forward it.
also you should not initialize the list
and the category
in jsp. try this.
for(Category cx: ((ArrayList<Category>)request.getAttribute("servletName"))) {
out.println( cx.getId());
out.println(cx.getName());
out.println(cx.getMainCategoryId() );
}
$query_string = "";
if ($_POST) {
$kv = array();
foreach ($_POST as $key => $value) {
$kv[] = stripslashes($key) . "=" . stripslashes($value);
}
$query_string = join("&", $kv);
}
if (!function_exists('curl_init')){
die('Sorry cURL is not installed!');
}
$url = 'https://www.abcd.com/servlet/';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, count($kv));
curl_setopt($ch, CURLOPT_POSTFIELDS, $query_string);
curl_setopt($ch, CURLOPT_HEADER, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, FALSE);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
$result = curl_exec($ch);
curl_close($ch);
You don't need to create a binding datasource. If you want to apply sorting for all of your columns, here is a more generic solution of mine;
private int _previousIndex;
private bool _sortDirection;
private void gridView_ColumnHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
if (e.ColumnIndex == _previousIndex)
_sortDirection ^= true; // toggle direction
gridView.DataSource = SortData(
(List<MainGridViewModel>)gridReview.DataSource, gridReview.Columns[e.ColumnIndex].Name, _sortDirection);
_previousIndex = e.ColumnIndex;
}
public List<MainGridViewModel> SortData(List<MainGridViewModel> list, string column, bool ascending)
{
return ascending ?
list.OrderBy(_ => _.GetType().GetProperty(column).GetValue(_)).ToList() :
list.OrderByDescending(_ => _.GetType().GetProperty(column).GetValue(_)).ToList();
}
Make sure you subscribe your data grid to the event ColumnHeaderMouseClick
. When the user clicks on the column it will sort by descending. If the same column header is clicked again, sorting will be applied by ascending.
It is usually handled automatically.
If autodiscovery doesn't work. Edit the elastic search config file, by enabling unicast discovery
Node 1:
cluster.name: mycluster
node.name: "node1"
node.master: true
node.data: true
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["node1.example.com"]
Node 2:
cluster.name: mycluster
node.name: "node2"
node.master: false
node.data: true
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["node1.example.com"]
and so on for node 3,4,5. Make node 1 master, and the rest only as data nodes.
Edit: Please note that by ES rule, if you have N
nodes, then by convention, N/2+1
nodes should be masters for fail-over mechanisms They may or may not be data nodes, though.
Also, in case auto-discovery doesn't work, most probable reason is because the network doesn't allow it (and therefore disabled). If too many auto-discovery pings take place across multiple servers, the resources to manage those pings will prevent other services from running correctly.
For ex, think of a 10,000 node cluster and all 10,000 nodes doing the auto-pings.
In C99(ISO/IEC 9899:TC3)
which seems absent from this discussion thus far the following steteents are made regarding order of evaluaiton.
[...]the order of evaluation of subexpressions and the order in which side effects take place are both unspecified. (Section 6.5 pp 67)
The order of evaluation of the operands is unspecified. If an attempt is made to modify the result of an assignment operator or to access it after the next sequence point, the behavior[sic] is undefined.(Section 6.5.16 pp 91)
You need to wrap this in script tags:
<script type='text/javascript'> ... your code ... </script>
That being said, it's important WHEN you execute this code. If you put this in the page BEFORE the HTML elements that it is hooking into then the script will run BEFORE the HTML is actually rendered in the page, so it will fail.
It is common practice to wrap this type of code in a "document ready" block, like so:
<script type='text/javascript'>
$(document).ready(function() {
... your code...
}}
</script>
This ensures that the entire page has rendered in the browser BEFORE your code is executed. It is also a best practice to put the code in the <head>
section of your page.
See my comment above asking for clarification on what you really want. Hopefully this is it:
System.Reflection.Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
System.Diagnostics.FileVersionInfo fvi = System.Diagnostics.FileVersionInfo.GetVersionInfo(assembly.Location);
string version = fvi.FileVersion;
They are both correct. Personally I prefer your approach better for its verbosity but it's really down to personal preference.
Off hand, running if($_POST) would not throw an error - the $_POST array exists regardless if the request was sent with POST headers. An empty array is cast to false in a boolean check.
VB.NET doesn't support for multi line comment.
The only way to do multi-line comments in VB.NET is to do a lot of single line comments('
).
Or just highlight the whole code and just use (Ctrl+E,C)
, (Ctrl+E,U)
to comment or uncomment.
Only in c# /* */
Or in ASP.NET html source using <!-- -->
.
The 500 code would normally indicate an error on the server, not anything with your code. Some thoughts
@Trevino: your answer helped me solve my problem. However, for a beginner, trying to give a step by step approach.
$ echo $JAVA_HOME
$ crontab -e
* * * * * echo $PATH
- this lets you understand whats the PATH value being used by crontab at present. Run crontab and grab $PATH value used by crontab.crontab -e
; b) PATH=<value of $JAVA_HOME>/bin:/usr/bin:/bin
(its a sample path); c) now your scheduled job/script like */10 * * * * sh runMyJob.sh &
; d) remove echo $PATH
from crontab as its not needed now.Install this nuget package from Microsoft System.Net.Http.Json
. It contains extension methods.
Then add using System.Net.Http.Json
Now, you'll be able to see these methods:
So you can now do this:
await httpClient.GetFromJsonAsync<IList<WeatherForecast>>("weatherforecast");
Source: https://www.stevejgordon.co.uk/sending-and-receiving-json-using-httpclient-with-system-net-http-json
As others have indicated, Process.Start()
is the way to go here. However, there are a few quirks. It's worth your time to read this blog post:
http://faithlife.codes/blog/2008/01/using_processstart_to_link_to/
In summary, some browsers cause it to throw an exception for no good reason, the function can block for a while on non-UI thread so you need to make sure it happens near the end of whatever other actions you might perform at the same time, and you might want to change the cursor appearance while waiting for the browser to open.
end(...[explode('.', $file_name)])
has worked since PHP 5.6. This is documented in the RFC although not in PHP docs themselves.
If you only want to verify that issuer of UserCert.pem
is actually Intermediate.pem
do the following (example uses: OpenSSL 1.1.1
):
openssl verify -no-CAfile -no-CApath -partial_chain -trusted Intermediate.pem UserCert.pem
and you will get:
UserCert.pem: OK
or
UserCert.pem: verification failed
View the Inner Exception of the exception to get a more specific error message.
One way to view the Inner Exception would be to catch the exception, and put a breakpoint on it. Then in the Locals window: select the Exception variable > InnerException > Message
And/Or just write to console:
catch (Exception e)
{
Console.WriteLine(e.InnerException.Message);
}
System.ComponentModel.DataAnnotations is contained in its own assembly so you need to make sure you have it refernced. Just simply:
1). Right click on Soloution and choose add.
2). Choose reference from the list.
3). Search " System.ComponentModel.DataAnnotation " and tick the check box on its left hand side and press ok.
Job done, shouldnt have any refernce errors.
(4+3)*(4*2) == 56
Note that PHP doesn't really support "nested functions", as in defined only in the scope of the parent function. All functions are defined globally. See the docs.
Do something like:
<?php
if ($_SERVER['SCRIPT_FILENAME'] == '<path to php include file>') {
header('HTTP/1.0 403 Forbidden');
exit('Forbidden');
}
?>
(Three years late...) but I believe the answer to your second question is that SSRS essentially treats data from your datasets as unsorted; I'm not sure if it ignores any ORDER BY in the sql, or if it just assumes the data is unsorted.
To sort your groups in a particular order, you need to specify it in the report:
For the report I just created, the default sort order on the category was alphabetic on the category group which was basically a string code. But sometimes it can be useful to sort by some other characteristic of the data; for example, my report is of Average and Maximum processing times for messages identified by some code (the category). By setting the sort order of the group to be on [MaxElapsedMs], Z->A it draws my attention to the worst-performing message-types.
This sort of presentation won't be useful for every report but it can be an excellent tool to guide readers to have a better understanding of the data; though on other occasions you might prefer a report to have the same ordering every time it runs, in which case sorting on the category label itself may be best... and I guess there are circumstances where changing the sort order could harm understanding, such as if the categories implied some sort of ordering (such as date values?)
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {
// return true if the replacementString only contains numeric characters
let digits = NSCharacterSet.decimalDigitCharacterSet()
for c in string {
if !digits.characterIsMember(c) {
return false
}
}
return true
}
This solution will work even if the user switches keyboards or tries to paste a non-numeric string into the text field.
Make sure to set the delegate
property of the appropriate text field.
Using sed:
$ echo "$string" | sed -e "s/^$prefix//" -e "s/$suffix$//"
o-wor
Within the sed command, the ^
character matches text beginning with $prefix
, and the trailing $
matches text ending with $suffix
.
Adrian Frühwirth makes some good points in the comments below, but sed
for this purpose can be very useful. The fact that the contents of $prefix and $suffix are interpreted by sed can be either good OR bad- as long as you pay attention, you should be fine. The beauty is, you can do something like this:
$ prefix='^.*ll'
$ suffix='ld$'
$ echo "$string" | sed -e "s/^$prefix//" -e "s/$suffix$//"
o-wor
which may be what you want, and is both fancier and more powerful than bash variable substitution. If you remember that with great power comes great responsibility (as Spiderman says), you should be fine.
A quick introduction to sed can be found at http://evc-cit.info/cit052/sed_tutorial.html
A note regarding the shell and its use of strings:
For the particular example given, the following would work as well:
$ echo $string | sed -e s/^$prefix// -e s/$suffix$//
...but only because:
It's generally good practice to quote a string on the command line because even if it contains spaces it will be presented to the command as a single argument. We quote $prefix and $suffix for the same reason: each edit command to sed will be passed as one string. We use double quotes because they allow for variable interpolation; had we used single quotes the sed command would have gotten a literal $prefix
and $suffix
which is certainly not what we wanted.
Notice, too, my use of single quotes when setting the variables prefix
and suffix
. We certainly don't want anything in the strings to be interpreted, so we single quote them so no interpolation takes place. Again, it may not be necessary in this example but it's a very good habit to get into.
If you have lots of columns and only one is different you could do:
In[1]: grouper = df.groupby('Company Name')
In[2]: res = grouper.count()
In[3]: res['Amount'] = grouper.Amount.sum()
In[4]: res
Out[4]:
Organisation Name Amount
Company Name
Vifor Pharma UK Ltd 5 4207.93
Note you can then rename the Organisation Name column as you wish.
For naming template parameters, typename
and class
are equivalent. §14.1.2:
There is no semantic difference between class and typename in a template-parameter.
typename
however is possible in another context when using templates - to hint at the compiler that you are referring to a dependent type. §14.6.2:
A name used in a template declaration or definition and that is dependent on a template-parameter is assumed not to name a type unless the applicable name lookup finds a type name or the name is qualified by the keyword typename.
Example:
typename some_template<T>::some_type
Without typename
the compiler can't tell in general whether you are referring to a type or not.