That question solved a quite similar question for me and I thought I should share :
In raw python you can use sum()
to count True
values in a list
:
>>> sum([True,True,True,False,False])
3
But this won't work :
>>> sum([[False, False, True], [True, False, True]])
TypeError...
I'm using this code, hope this helps!
Application.ScreenUpdating = False
Application.EnableEvents = False
Dim destination_wb As Workbook
Set destination_wb = Workbooks.Open(DESTINATION_WORKBOOK_NAME)
worksheet_to_copy.Copy Before:=destination_wb.Worksheets(1)
destination_wb.Worksheets(1).Name = worksheet_to_copy.Name
'Add the sheets count to the name to avoid repeated worksheet names error
'& destination_wb.Worksheets.Count
'optional
destination_wb.Worksheets(1).UsedRange.Columns.AutoFit
'I use this to avoid macro errors in destination_wb
Call DeleteAllVBACode(destination_wb)
'Delete source worksheet
Application.DisplayAlerts = False
worksheet_to_copy.Delete
Application.DisplayAlerts = True
destination_wb.Save
destination_wb.Close
Application.EnableEvents = True
Application.ScreenUpdating = True
' From http://www.cpearson.com/Excel/vbe.aspx
Public Sub DeleteAllVBACode(libro As Workbook)
Dim VBProj As VBProject
Dim VBComp As VBComponent
Dim CodeMod As CodeModule
Set VBProj = libro.VBProject
For Each VBComp In VBProj.VBComponents
If VBComp.Type = vbext_ct_Document Then
Set CodeMod = VBComp.CodeModule
With CodeMod
.DeleteLines 1, .CountOfLines
End With
Else
VBProj.VBComponents.Remove VBComp
End If
Next VBComp
End Sub
This could be a simple way to handle it as a real ordered object. Not sure how slow it is. also might be better with a while loop.
Object.sortByKeys = function(myObj){
var keys = Object.keys(myObj)
keys.sort()
var sortedObject = Object()
for(i in keys){
key = keys[i]
sortedObject[key]=myObj[key]
}
return sortedObject
}
And then I found this invert function from: http://nelsonwells.net/2011/10/swap-object-key-and-values-in-javascript/
Object.invert = function (obj) {
var new_obj = {};
for (var prop in obj) {
if(obj.hasOwnProperty(prop)) {
new_obj[obj[prop]] = prop;
}
}
return new_obj;
};
So
var list = {"you": 100, "me": 75, "foo": 116, "bar": 15};
var invertedList = Object.invert(list)
var invertedOrderedList = Object.sortByKeys(invertedList)
var orderedList = Object.invert(invertedOrderedList)
$last = count($arr_nav) - 1;
foreach ($arr_nav as $i => $row)
{
$isFirst = ($i == 0);
$isLast = ($i == $last);
echo ... $row['name'] ... $row['url'] ...;
}
You can use:
if (myString1.IndexOf("AbC", StringComparison.OrdinalIgnoreCase) >=0) {
//...
}
This works with any .NET version.
As per this example:
import numpy as np
import matplotlib.pyplot as plt
N = 50
x = np.random.rand(N)
y = np.random.rand(N)
plt.scatter(x, y)
plt.show()
will produce:
To unpack your data from pairs into lists use zip
:
x, y = zip(*li)
So, the one-liner:
plt.scatter(*zip(*li))
In order to assign a variable safely you have to use the SET-SELECT statement:
SET @PrimaryContactKey = (SELECT c.PrimaryCntctKey
FROM tarcustomer c, tarinvoice i
WHERE i.custkey = c.custkey
AND i.invckey = @tmp_key)
Make sure you have both a starting and an ending parenthesis!
The reason the SET-SELECT version is the safest way to set a variable is twofold.
1. The SELECT returns several posts
What happens if the following select results in several posts?
SELECT @PrimaryContactKey = c.PrimaryCntctKey
FROM tarcustomer c, tarinvoice i
WHERE i.custkey = c.custkey
AND i.invckey = @tmp_key
@PrimaryContactKey
will be assigned the value from the last post in the result.
In fact @PrimaryContactKey
will be assigned one value per post in the result, so it will consequently contain the value of the last post the SELECT-command was processing.
Which post is "last" is determined by any clustered indexes or, if no clustered index is used or the primary key is clustered, the "last" post will be the most recently added post. This behavior could, in a worst case scenario, be altered every time the indexing of the table is changed.
With a SET-SELECT statement your variable will be set to null
.
2. The SELECT returns no posts
What happens, when using the second version of the code, if your select does not return a result at all?
In a contrary to what you may believe the value of the variable will not be null - it will retain it's previous value!
This is because, as stated above, SQL will assign a value to the variable once per post - meaning it won't do anything with the variable if the result contains no posts. So, the variable will still have the value it had before you ran the statement.
With the SET-SELECT statement the value will be null
.
The cleanest approach is to use the Array#concat method; it will not create a new array (unlike Array#+ which will do the same thing but create a new array).
Straight from the docs (http://www.ruby-doc.org/core-1.9.3/Array.html#method-i-concat):
concat(other_ary)
Appends the elements of other_ary to self.
So
[1,2].concat([3,4]) #=> [1,2,3,4]
Array#concat will not flatten a multidimensional array if it is passed in as an argument. You'll need to handle that separately:
arr= [3,[4,5]]
arr= arr.flatten #=> [3,4,5]
[1,2].concat(arr) #=> [1,2,3,4,5]
Lastly, you can use our corelib gem (https://github.com/corlewsolutions/corelib) which adds useful helpers to the Ruby core classes. In particular we have an Array#add_all method which will automatically flatten multidimensional arrays before executing the concat.
Just add a new datafile for the existing tablespace
ALTER TABLESPACE LEGAL_DATA ADD DATAFILE '/u01/oradata/userdata03.dbf' SIZE 200M;
To find out the location and size of your data files:
SELECT FILE_NAME, BYTES FROM DBA_DATA_FILES WHERE TABLESPACE_NAME = 'LEGAL_DATA';
Update for xcode 8 and swift 3, specify common colors like:
button.backgroundColor = UIColor.blue
the Color()
has been removed.
First off, you'll want to go through Oracle's tutorial to learn how to do basic I/O in Java.
After that, you will want to look at the tutorial on how to use a file chooser.
C++ (and C for that matter) split the "declaration" and the "implementation" of types, functions and classes. You should "declare" the classes you need in a header-file (.h or .hpp), and put the corresponding implementation in a .cpp-file. Then, when you wish to use (access) a class somewhere, you #include the corresponding headerfile.
Example
ClassOne.hpp:
class ClassOne
{
public:
ClassOne(); // note, no function body
int method(); // no body here either
private:
int member;
};
ClassOne.cpp:
#include "ClassOne.hpp"
// implementation of constructor
ClassOne::ClassOne()
:member(0)
{}
// implementation of "method"
int ClassOne::method()
{
return member++;
}
main.cpp:
#include "ClassOne.hpp" // Bring the ClassOne declaration into "view" of the compiler
int main(int argc, char* argv[])
{
ClassOne c1;
c1.method();
return 0;
}
You need to use HAVING
, not WHERE
.
The difference is: the WHERE
clause filters which rows MySQL selects. Then MySQL groups the rows together and aggregates the numbers for your COUNT
function.
HAVING
is like WHERE
, only it happens after the COUNT
value has been computed, so it'll work as you expect. Rewrite your subquery as:
( -- where that pid is in the set:
SELECT c2.pid -- of pids
FROM Catalog AS c2 -- from catalog
WHERE c2.pid = c1.pid
HAVING COUNT(c2.sid) >= 2)
Maven uses batch files to do its business. With any batch script, you must call another script using the call
command so it knows to return back to your script after the called script completes. Try prepending call
to all commands.
Another thing you could try is using the start
command which should work similarly.
There is no need for a hash of hexadecimal letters. JavaScript can do this by itself:
function get_random_color() {
function c() {
var hex = Math.floor(Math.random()*256).toString(16);
return ("0"+String(hex)).substr(-2); // pad with zero
}
return "#"+c()+c()+c();
}
For Eclipse: menu bar-> window -> show view then find "debug" option if not in list then select other ...
new window will open and then search using keyword "debug" -> select debug from list
it will added near console tab. use debug tab to terminate and remove previous executions. ( right clicking on executing process will show you many option including terminate)
That's what I tried with js/typescript in chrome. Thanks to this answer for inspiration.
var x = document.querySelector('input');
var keyboardEvent = new KeyboardEvent("keypress", { bubbles: true });
// you can try charCode or keyCode but they are deprecated
Object.defineProperty(keyboardEvent, "key", {
get() {
return "Enter";
},
});
x.dispatchEvent(keyboardEvent);
{
// example
document.querySelector('input').addEventListener("keypress", e => console.log("keypress", e.key))
// unfortunatelly doesn't trigger submit
document.querySelector('form').addEventListener("submit", e => {
e.preventDefault();
console.log("submit")
})
}
var x = document.querySelector('input');
var keyboardEvent = new KeyboardEvent("keypress", { bubbles: true });
// you can try charCode or keyCode but they are deprecated
Object.defineProperty(keyboardEvent, "key", {
get() {
return "Enter";
},
});
x.dispatchEvent(keyboardEvent);
_x000D_
<form>
<input>
</form>
_x000D_
$('div').attr('style', '');
or
$('div').removeAttr('style');
(From Andres's Answer)
To make this a little smaller, try this:
$('div[style]').removeAttr('style');
This should speed it up a little because it checks that the divs have the style attribute.
Either way, this might take a little while to process if you have a large amount of divs, so you might want to consider other methods than javascript.
There is a great explanation in the given url below.
http://www.codeproject.com/Articles/330447/Understanding-Association-Aggregation-and-Composit
Please check!!!
Deleting contents of folder C:\Users\User_Name\AppData\Roaming\pgAdmin\sessions helped me, I was able to start and load the pgAdmin server
This one works for me.
import { Component,Input,OnInit} from '@angular/core';
import {DomSanitizer,SafeResourceUrl,} from '@angular/platform-browser';
@Component({
moduleId: module.id,
selector: 'player',
templateUrl: './player.component.html',
styleUrls:['./player.component.scss'],
})
export class PlayerComponent implements OnInit{
@Input()
id:string;
url: SafeResourceUrl;
constructor (public sanitizer:DomSanitizer) {
}
ngOnInit() {
this.url = this.sanitizer.bypassSecurityTrustResourceUrl(this.id);
}
}
$con="";
$MODE="";
$dbhost = "localhost";
$dbuser = "root";
$dbpassword = "";
$database = "name";
$con = new PDO ( "mysql:host=$dbhost;dbname=$database", "$dbuser", "$dbpassword", array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"));
$con->setAttribute ( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
InputStream in = FileLoader.class.getResourceAsStream("<relative path from this class to the file to be read>");
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
String line = null;
while ((line = reader.readLine()) != null) {
System.out.println(line);
}
} catch (Exception e) {
e.printStackTrace();
}
Taking a look at the source code of OpenPyXL (IterableWorksheet) I've figured out how to get the column and row count from an iterator worksheet:
wb = load_workbook(path, use_iterators=True)
sheet = wb.worksheets[0]
row_count = sheet.get_highest_row() - 1
column_count = letter_to_index(sheet.get_highest_column()) + 1
IterableWorksheet.get_highest_column
returns a string with the column letter that you can see in Excel, e.g. "A", "B", "C" etc. Therefore I've also written a function to translate the column letter to a zero based index:
def letter_to_index(letter):
"""Converts a column letter, e.g. "A", "B", "AA", "BC" etc. to a zero based
column index.
A becomes 0, B becomes 1, Z becomes 25, AA becomes 26 etc.
Args:
letter (str): The column index letter.
Returns:
The column index as an integer.
"""
letter = letter.upper()
result = 0
for index, char in enumerate(reversed(letter)):
# Get the ASCII number of the letter and subtract 64 so that A
# corresponds to 1.
num = ord(char) - 64
# Multiply the number with 26 to the power of `index` to get the correct
# value of the letter based on it's index in the string.
final_num = (26 ** index) * num
result += final_num
# Subtract 1 from the result to make it zero-based before returning.
return result - 1
I still haven't figured out how to get the column sizes though, so I've decided to use a fixed-width font and automatically scaled columns in my application.
use plt.figure(dpi=1200)
before all your plt.plot...
and at the end use plt.savefig(...
see: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.figure
and
http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.savefig
In Ubuntu local user command prompt, but not root user, type
sudo -u postgres createuser username
username above should match the name indicated in the message "FATAL: role 'username' does not exist."
Enter password for username.
Then re-enter the command that generated role does not exist message.
You can do forward typedef. But to do
typedef A B;
you must first forward declare A
:
class A;
typedef A B;
import java.util.*;
public class Main {
public static void main(String[] args) {
TreeMap<String, Integer> initTree = new TreeMap();
initTree.put("D", 0);
initTree.put("C", -3);
initTree.put("A", 43);
initTree.put("B", 32);
System.out.println("Sorted by keys:");
System.out.println(initTree);
List list = new ArrayList(initTree.entrySet());
Collections.sort(list, new Comparator<Map.Entry<String, Integer>>() {
@Override
public int compare(Map.Entry<String, Integer> e1, Map.Entry<String, Integer> e2) {
return e1.getValue().compareTo(e2.getValue());
}
});
System.out.println("Sorted by values:");
System.out.println(list);
}
}
Answering your question in this format is quite challenging.
On the other hand you ask about navigation and then about current $state
acting all weird.
For the first I'd say it's too broad question and for the second I'd say... well, you are doing something wrong or missing the obvious :)
Take the following controller:
app.controller('MainCtrl', function($scope, $state) {
$scope.state = $state;
});
Where app
is configured as:
app.config(function($stateProvider) {
$stateProvider
.state('main', {
url: '/main',
templateUrl: 'main.html',
controller: 'MainCtrl'
})
.state('main.thiscontent', {
url: '/thiscontent',
templateUrl: 'this.html',
controller: 'ThisCtrl'
})
.state('main.thatcontent', {
url: '/thatcontent',
templateUrl: 'that.html'
});
});
Then simple HTML template having
<div>
{{ state | json }}
</div>
Would "print out" e.g. the following
{
"params": {},
"current": {
"url": "/thatcontent",
"templateUrl": "that.html",
"name": "main.thatcontent"
},
"transition": null
}
I put up a small example showing this, using ui.router
and pascalprecht.translate
for the menus. I hope you find it useful and figure out what is it you are doing wrong.
Plunker here http://plnkr.co/edit/XIW4ZE
Screencap
try this:
String json = "{'phonetype':'N95','cat':'WP'}";
Another way of doing multiple cases in a switch statement, when inside a function:
function name(varName){
switch (varName) {
case 'afshin':
case 'saeed':
case 'larry':
return 'Hey';
default:
return 'Default case';
}
}
console.log(name('afshin')); // Hey
_x000D_
The answer below is apparently obsolete now, but works with older drivers. See comments.
If you have the connection string you could also use MongoDatabase directly:
var db = MongoDatabase.Create(connectionString);
var coll = db.GetCollection("MyCollection");
You could use this script:
def run(runfile):
with open(runfile,"r") as rnf:
exec(rnf.read())
Syntax:
run("file.py")
The decode
method of unicode strings really doesn't have any applications at all (unless you have some non-text data in a unicode string for some reason -- see below). It is mainly there for historical reasons, i think. In Python 3 it is completely gone.
unicode().decode()
will perform an implicit encoding of s
using the default (ascii) codec. Verify this like so:
>>> s = u'ö'
>>> s.decode()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\xf6' in position 0:
ordinal not in range(128)
>>> s.encode('ascii')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\xf6' in position 0:
ordinal not in range(128)
The error messages are exactly the same.
For str().encode()
it's the other way around -- it attempts an implicit decoding of s
with the default encoding:
>>> s = 'ö'
>>> s.decode('utf-8')
u'\xf6'
>>> s.encode()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 0:
ordinal not in range(128)
Used like this, str().encode()
is also superfluous.
But there is another application of the latter method that is useful: there are encodings that have nothing to do with character sets, and thus can be applied to 8-bit strings in a meaningful way:
>>> s.encode('zip')
'x\x9c;\xbc\r\x00\x02>\x01z'
You are right, though: the ambiguous usage of "encoding" for both these applications is... awkard. Again, with separate byte
and string
types in Python 3, this is no longer an issue.
To create a proper, mysql, varchar 32 GUID
SecureRandom.uuid.gsub('-','').upcase
You can use matplotlib
to plot the histogram and the PDF (as in the link in @MrE's answer). For fitting and for computing the PDF, you can use scipy.stats.norm
, as follows.
import numpy as np
from scipy.stats import norm
import matplotlib.pyplot as plt
# Generate some data for this demonstration.
data = norm.rvs(10.0, 2.5, size=500)
# Fit a normal distribution to the data:
mu, std = norm.fit(data)
# Plot the histogram.
plt.hist(data, bins=25, density=True, alpha=0.6, color='g')
# Plot the PDF.
xmin, xmax = plt.xlim()
x = np.linspace(xmin, xmax, 100)
p = norm.pdf(x, mu, std)
plt.plot(x, p, 'k', linewidth=2)
title = "Fit results: mu = %.2f, std = %.2f" % (mu, std)
plt.title(title)
plt.show()
Here's the plot generated by the script:
There are two differences:
We can use Iterator to traverse Set and List and also Map type of Objects. While a ListIterator can be used to traverse for List-type Objects, but not for Set-type of Objects.
That is, we can get a Iterator object by using Set and List, see here:
By using Iterator we can retrieve the elements from Collection Object in forward direction only.
Methods in Iterator:
hasNext()
next()
remove()
Iterator iterator = Set.iterator();
Iterator iterator = List.iterator();
But we get ListIterator object only from the List interface, see here:
where as a ListIterator allows you to traverse in either directions (Both forward and backward). So it has two more methods like hasPrevious()
and previous()
other than those of Iterator. Also, we can get indexes of the next or previous elements (using nextIndex()
and previousIndex()
respectively )
Methods in ListIterator:
ListIterator listiterator = List.listIterator();
i.e., we can't get ListIterator object from Set interface.
Reference : - What is the difference between Iterator and ListIterator ?
Try to use the <font>
tag
?<table>
<thead>
<tr>
<th><font color="#FFF">Header 1</font></th>
<th><font color="#FFF">Header 1</font></th>
<th><font color="#FFF">Header 1</font></th>
</tr>
</thead>
<tbody>
<tr>
<td>blah blah</td>
<td>blah blah</td>
<td>blah blah</td>
</tr>
</tbody>
</table>
But I think this should work, too:
?<table>
<thead>
<tr>
<th color="#FFF">Header 1</th>
<th color="#FFF">Header 1</th>
<th color="#FFF">Header 1</th>
</tr>
</thead>
<tbody>
<tr>
<td>blah blah</td>
<td>blah blah</td>
<td>blah blah</td>
</tr>
</tbody>
</table>
EDIT:
Crossbrowser solution:
use capitals in HEX-color.
<th bgcolor="#5D7B9D" color="#FFFFFF"><font color="#FFFFFF">Header 1</font></th>
I had the same exact isuue with the latest Android Studio 2.3.2 and Instant Run.
here what I did : (I'll give you two ways to achive that one disable for specefic project, and second for whole android studio):
on root of your projct open gradle-->gradle-wrapper.properties then change the value
distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
and on your project build.gradle change the value
classpath 'com.android.tools.build:gradle:2.2.3'
in older version of AS settings for instant run is
File -> Other Settings -> Default Settings ->Build,Execution,Deployment
However In most recent version of Android Studio i.e 2.3.2 , instant run settings is:
Edited: If for any reason the Instant-run settings is greyed out do this :
Help-> Find Action...
and then type 'enable isntant run' and click (now you should be able to change the value in Preferences... or file->Settings... , if that was the case then this is an Android Studio bug :-)
Sometimes, this error indicates that physical memory and swap on the server actually are fully utilized!
I was seeing this problem recently on a server running RedHat Enterprise Linux 5.7 with 48 GB of RAM. I found that even just running
java -version
caused the same error, which established that the problem was not specific to my application.
Running
cat /proc/meminfo
reported that MemFree and SwapFree were both well under 1% of the MemTotal and SwapTotal values, respectively:
MemTotal: 49300620 kB
MemFree: 146376 kB
...
SwapTotal: 4192956 kB
SwapFree: 1364 kB
Stopping a few other running applications on the machine brought the free memory figures up somewhat:
MemTotal: 49300620 kB
MemFree: 2908664 kB
...
SwapTotal: 4192956 kB
SwapFree: 1016052 kB
At this point, a new instance of Java would start up okay, and I was able to run my application.
(Obviously, for me, this was just a temporary solution; I still have an outstanding task to do a more thorough examination of the processes running on that machine to see if there's something that can be done to reduce the nominal memory utilization levels, without having to resort to stopping applications.)
My issue is :
return __import__('MySQLdb')
ImportError: No module named MySQLdb
and my resolution :
pip install MySQL-python
yum install mysql-devel.x86_64
at the very beginning, i just installed MySQL-python, but the issue still existed. So i think if this issue happened, you should also take mysql-devel into consideration. Hope this helps.
To me, this is the best way:
isNumber : function(v){
return typeof v === 'number' && isFinite(v);
}
I think this is the correct answer, just change Europe/Stockholm
to the users time-zone.
$dateTime = new \DateTime(
'now',
new \DateTimeZone('Europe/Stockholm')
);
$day = $dateTime->format('N');
ISO-8601 numeric representation of the day of the week (added in PHP 5.1.0) 1 (for Monday) through 7 (for Sunday)
http://php.net/manual/en/function.date.php
For a list of supported time-zones, see http://php.net/manual/en/timezones.php
Annoyingly Javascript's date.getSeconds()
et al will not pad the result with zeros 11:0:0
instead of 11:00:00
.
So I like to use
date.toLocaleTimestring()
Which renders 11:00:00 AM
. Just beware when using the extra options, some browsers don't support them (Safari)
The question title is ambiguous.
This is a feature, not a bug.
See http://docs.python.org/howto/unicode.html, specifically the 'unicode type' section.
it will take much time then normal start and it will fresh up all resources.
Go via POSIXct
and you want to set a TZ
there -- here you see my (Chicago) default:
R> val <- 1352068320
R> as.POSIXct(val, origin="1970-01-01")
[1] "2012-11-04 22:32:00 CST"
R> as.Date(as.POSIXct(val, origin="1970-01-01"))
[1] "2012-11-05"
R>
Edit: A few years later, we can now use the anytime package:
R> library(anytime)
R> anytime(1352068320)
[1] "2012-11-04 16:32:00 CST"
R> anydate(1352068320)
[1] "2012-11-04"
R>
Note how all this works without any format or origin arguments.
This worked for me
mysqldump -u root -p mydbscheme > mydbscheme_dump.sql
after issuing the command it asks for a password:
Enter password:
entering the password will make the dump file.
Linux
conda env export --no-builds | grep -v "prefix" > environment.yml
Windows
conda env export --no-builds | findstr -v "prefix" > environment.yml
Rationale: By default, conda env export
includes the build information:
$ conda env export
...
dependencies:
- backcall=0.1.0=py37_0
- blas=1.0=mkl
- boto=2.49.0=py_0
...
You can instead export your environment without build info:
$ conda env export --no-builds
...
dependencies:
- backcall=0.1.0
- blas=1.0
- boto=2.49.0
...
Which unties the environment from the Python version and OS.
To have text-align:center
work you need to add that style to the #siteInfo
div or wrap the input in a paragraph and add text-align:center
to the paragraph.
Try this:
$("#cpa-form").submit(function(e){
return false;
});
#header.overlay {
background-color: SlateGray;
position:relative;
width: 100%;
height: 100%;
opacity: 0.20;
-moz-opacity: 20%;
-webkit-opacity: 20%;
z-index: 2;
}
Something like this. Just add the overlay
class to the header, obviously.
You need to specify the system property with the path the .exe when starting the Selenium server node. See also the accepted anwser to Selenium grid with Chrome driver (WebDriverException: The path to the driver executable must be set by the webdriver.chrome.driver system property)
I've wrote a traybar app with .NET 1.1 and I didn't need a form.
First of all, set the startup object of the project as a Sub Main
, defined in a module.
Then create programmatically the components: the NotifyIcon
and ContextMenu
.
Be sure to include a MenuItem
"Quit" or similar.
Bind the ContextMenu
to the NotifyIcon
.
Invoke Application.Run()
.
In the event handler for the Quit MenuItem
be sure to call set NotifyIcon.Visible = False
, then Application.Exit()
.
Add what you need to the ContextMenu
and handle properly :)
No, you can't, it doesn't support only year, so to do that you need a script, like jQuery or the webshim link you have, which shows year only.
If jQuery would be an option, here is one, borrowed from Sibu:
Javascript
$(function() {
$( "#datepicker" ).datepicker({dateFormat: 'yy'});
});?
CSS
.ui-datepicker-calendar {
display: none;
}
Src: https://stackoverflow.com/a/13528855/2827823
Src fiddle: http://jsfiddle.net/vW8zc/
Here is an updated fiddle, without the month and prev/next buttons
If bootstrap is an option, check this link, they have a layout how you want.
int firstDigit = Integer.parseInt(Character.toString(firstLetterChar));
I had similar problem, then I tried writing this from JavaScript and it works! : referenceToYourInputFile.value = "" ;
I've taken a bit of a different approach. I needed to parse a datetime from an excel import that was in the OA date format. This methodology is simple enough to build from... in essence,
Delete the original column and rename to the new to match the old
private void ChangeColumnType(System.Data.DataTable dt, string p, Type type){
dt.Columns.Add(p + "_new", type);
foreach (System.Data.DataRow dr in dt.Rows)
{ // Will need switch Case for others if Date is not the only one.
dr[p + "_new"] =DateTime.FromOADate(double.Parse(dr[p].ToString())); // dr[p].ToString();
}
dt.Columns.Remove(p);
dt.Columns[p + "_new"].ColumnName = p;
}
I can recommend jOOQ. It provides a lot of great features, also a intuitive DSL for SQL and a extremly customable reverse-engineering approach.
jOOQ effectively combines complex SQL, typesafety, source code generation, active records, stored procedures, advanced data types, and Java in a fluent, intuitive DSL.
Following applies to IIS 7
The error is trying to tell you that one of two things is not working properly:
See the following link for instructions on how to diagnose and fix the above issues.
http://support.microsoft.com/kb/942062/en-us
If neither of these issues is the problem, another thing to check is to make sure that the application pool configured for your website (under IIS Manager, select your website, and click "Basic Settings" on the far right) is configured with the same .Net framework version (in IIS Manager, under "Application Pools") as the targetFramework configured in your web.config, e.g.:
<configuration>
<system.web>
<compilation debug="true" targetFramework="4.0" />
<httpRuntime targetFramework="4.0" />
</system.web>
I'm not sure why this would generate such a seemingly unrelated error message, but it did for me.
I think you can use db.collection.distinct(fields,query)
You will be able to get the distinct values in your case for NetworkID.
It should be something like this :
Db.collection.distinct('NetworkID')
If the OK line is the first line and the last line is the dot you could consider slice them off like this:
TestString = '''OK SYS 10 LEN 20 12 43
1233a.fdads.txt,23 /data/a11134/a.txt
3232b.ddsss.txt,32 /data/d13f11/b.txt
3452d.dsasa.txt,1234 /data/c13af4/f.txt
.
'''
print('\n'.join(TestString.split()[1:-1]))
However if this is a very large string you may run into memory problems.
And if you want to search and replace based on the value of another field you could do a CONCAT:
update table_name set `field_name` = replace(`field_name`,'YOUR_OLD_STRING',CONCAT('NEW_STRING',`OTHER_FIELD_VALUE`,'AFTER_IF_NEEDED'));
Just to have this one here so that others will find it at once.
The tutorial ANGULAR.JS: NG-SELECT AND NG-OPTIONS helped me solve the problem:
<select id="countryId"
class="form-control"
data-ng-model="entity.countryId"
ng-options="value.dataValue as value.dataText group by value.group for value in countries"></select>
You need the public key in your gpg key ring. To import the public key into your public keyring, place the public key block in a text file with a .gpg extension, and then issue the following command:
gpg --import <your-file>.gpg
The entity that encrypted the file should provide you with such a block. For example, ftp://ftp.gnu.org/gnu/gnu-keyring.gpg has the block for gnu.org.
For an even more in-depth explanation see Verifying files with GPG, without a .sig or .asc file?
You're probably just getting a stack overflow here. The array is too big to fit in your program's stack address space.
If you allocate the array on the heap you should be fine, assuming your machine has enough memory.
int* array = new int[1000000];
But remember that this will require you to delete[]
the array. A better solution would be to use std::vector<int>
and resize it to 1000000 elements.
If you're using Eclipse, you can also try out JAXB Eclipse Plug-In
You can find more information about XJC Binding Compiler that comes with the jdk installation over here: xjc: Java™ Architecture for XML Binding -Binding Compiler
I hope this helps!
I play with following
extension String {
func allCharactes() -> [Character] {
var result: [Character] = []
for c in self.characters {
result.append(c)
}
return
}
}
until I understand the provided one's now it's just Character array
and with
let c = Array(str.characters)
File file = new File("Foo.txt");
try (PrintStream ps = new PrintStream(file)) {
ps.println("Bar");
}
response.setContentType("application/octet-stream");
response.setContentLength((int) file.length());
response.setHeader( "Content-Disposition",
String.format("attachment; filename=\"%s\"", file.getName()));
OutputStream out = response.getOutputStream();
try (FileInputStream in = new FileInputStream(file)) {
byte[] buffer = new byte[4096];
int length;
while ((length = in.read(buffer)) > 0) {
out.write(buffer, 0, length);
}
}
out.flush();
This works for DLLs locked by other processes. This routine will not find out for example that a text file is locked by a word process.
C#:
using System.Management;
using System.IO;
static class Module1
{
static internal ArrayList myProcessArray = new ArrayList();
private static Process myProcess;
public static void Main()
{
string strFile = "c:\\windows\\system32\\msi.dll";
ArrayList a = getFileProcesses(strFile);
foreach (Process p in a) {
Debug.Print(p.ProcessName);
}
}
private static ArrayList getFileProcesses(string strFile)
{
myProcessArray.Clear();
Process[] processes = Process.GetProcesses;
int i = 0;
for (i = 0; i <= processes.GetUpperBound(0) - 1; i++) {
myProcess = processes(i);
if (!myProcess.HasExited) {
try {
ProcessModuleCollection modules = myProcess.Modules;
int j = 0;
for (j = 0; j <= modules.Count - 1; j++) {
if ((modules.Item(j).FileName.ToLower.CompareTo(strFile.ToLower) == 0)) {
myProcessArray.Add(myProcess);
break; // TODO: might not be correct. Was : Exit For
}
}
}
catch (Exception exception) {
}
//MsgBox(("Error : " & exception.Message))
}
}
return myProcessArray;
}
}
VB.Net:
Imports System.Management
Imports System.IO
Module Module1
Friend myProcessArray As New ArrayList
Private myProcess As Process
Sub Main()
Dim strFile As String = "c:\windows\system32\msi.dll"
Dim a As ArrayList = getFileProcesses(strFile)
For Each p As Process In a
Debug.Print(p.ProcessName)
Next
End Sub
Private Function getFileProcesses(ByVal strFile As String) As ArrayList
myProcessArray.Clear()
Dim processes As Process() = Process.GetProcesses
Dim i As Integer
For i = 0 To processes.GetUpperBound(0) - 1
myProcess = processes(i)
If Not myProcess.HasExited Then
Try
Dim modules As ProcessModuleCollection = myProcess.Modules
Dim j As Integer
For j = 0 To modules.Count - 1
If (modules.Item(j).FileName.ToLower.CompareTo(strFile.ToLower) = 0) Then
myProcessArray.Add(myProcess)
Exit For
End If
Next j
Catch exception As Exception
'MsgBox(("Error : " & exception.Message))
End Try
End If
Next i
Return myProcessArray
End Function
End Module
i find that this works for me
db.getCollection('collectionName').findOne({"fieldName" : {$ne: null}})
Since Node v11.0.0 fs promises are available natively without promisify
:
const fs = require('fs').promises;
async function loadMonoCounter() {
const data = await fs.readFile("monolitic.txt", "binary");
return new Buffer(data);
}
I tried every thing, but still I was unable to do that, I am using mysql, jpa with hibernate, I resolved my issue by assigning value of id 0 in constructor Following is my id declaration code
@Id
@Column(name="id",updatable=false,nullable=false)
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
According to the examples base64 encoding is directly supported, although I've not tested it myself. Take your base64 string (derived from a file or loaded with any other method, POST/GET, websockets etc), turn it to a binary with atob, and then parse this to getDocument on the PDFJS API likePDFJS.getDocument({data: base64PdfData});
Codetoffel answer does work just fine for me though.
The parameters of isset()
should be separated by a comma sign (,
) and not a dot sign (.
). Your current code concatenates the variables into a single parameter, instead of passing them as separate parameters.
So the original code evaluates the variables as a unified string
value:
isset($_POST['search_term'] . $_POST['postcode']) // Incorrect
While the correct form evaluates them separately as variables:
isset($_POST['search_term'], $_POST['postcode']) // Correct
In Visual Studio, you can't just open a .cpp
file and expect it to run. You must create a project first, or open the .cpp in some existing project.
In your case, there is no project, so there is no project to build.
Go to File --> New --> Project --> Visual C++ --> Win32 Console Application
. You can uncheck "create a directory for solution". On the next page, be sure to check "Empty project".
Then, You can add .cpp
files you created outside the Visual Studio by right clicking in the Solution explorer
on folder icon "Source" and Add->Existing Item.
Obviously You can create new .cpp this way too (Add --> New). The .cpp file will be created in your project directory.
Then you can press ctrl+F5 to compile without debugging and can see output on console window.
First Step:-
Select Project Target -> Build Setting -> Search('Define') -> Define Module update value No to Yes
"Defines Module": YES.
"Always Embed Swift Standard Libraries" : YES.
"Install Objective-C Compatibility Header" : YES.
Second Step:-
Add Swift file Class in Objective C ".h" File as below
#import <UIKit/UIKit.h>
@class TestViewController(Swift File);
@interface TestViewController(Objective C File) : UIViewController
@end
Import 'ProjectName(Your Project Name)-Swift.h' in Objective C ".m" file
//TestViewController.m
#import "TestViewController.h"
/*import ProjectName-Swift.h file to access Swift file here*/
#import "ProjectName-Swift.h"
Using regex:
if re.match(r'^\s*$', line):
# line is empty (has only the following: \t\n\r and whitespace)
Using regex + filter()
:
filtered = filter(lambda x: not re.match(r'^\s*$', x), original)
As seen on codepad.
Git’s executable is actually located in:
C:\Users\<user>\AppData\Local\GitHub\PortableGit_<guid>\bin\git.exe
Now that we have located the executable all we have to do is add it to our PATH:
;C:\Users\<user>\AppData\Local\GitHub\PortableGit_<guid>\bin;C:\Users\<user>\AppData\Local\GitHub\PortableGit_<guid>\cmd
Array has a GetValue(Int32) method which you can use to retrieve the value at a specified index.
vector<string> func1() const
{
vector<string> parts;
return vector<string>(parts.begin(),parts.end()) ;
}
You can follow this Google JavaScript Style Guide
In general, use functionNamesLikeThis, variableNamesLikeThis, ClassNamesLikeThis, EnumNamesLikeThis, methodNamesLikeThis, and SYMBOLIC_CONSTANTS_LIKE_THIS.
EDIT: See nice collection of JavaScript Style Guides And Beautifiers.
Just use CASCADE
TRUNCATE "products" RESTART IDENTITY CASCADE;
But be ready for cascade deletes )
In my case the problem was in not providing CA Root Certificate. I figured it out after using: https://www.ssllabs.com/ssltest/analyze.html to analyze SSL configuration.
For windows use enter button 3 times
Enter file in which to save the key (/c/Users/Rupesh/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again:
its work for me...
To load a .docx file:
if let htmlFile = Bundle.main.path(forResource: "fileName", ofType: "docx") {
let url = URL(fileURLWithPath: htmlFile)
do{
let data = try Data(contentsOf: url)
self.webView.load(data, mimeType: "application/vnd.openxmlformats-officedocument.wordprocessingml.document", textEncodingName: "UTF-8", baseURL: url)
}catch{
print("errrr")
}
}
Here's my implementation in C#.
using System;
namespace CosineSimilarity
{
class Program
{
static void Main()
{
int[] vecA = {1, 2, 3, 4, 5};
int[] vecB = {6, 7, 7, 9, 10};
var cosSimilarity = CalculateCosineSimilarity(vecA, vecB);
Console.WriteLine(cosSimilarity);
Console.Read();
}
private static double CalculateCosineSimilarity(int[] vecA, int[] vecB)
{
var dotProduct = DotProduct(vecA, vecB);
var magnitudeOfA = Magnitude(vecA);
var magnitudeOfB = Magnitude(vecB);
return dotProduct/(magnitudeOfA*magnitudeOfB);
}
private static double DotProduct(int[] vecA, int[] vecB)
{
// I'm not validating inputs here for simplicity.
double dotProduct = 0;
for (var i = 0; i < vecA.Length; i++)
{
dotProduct += (vecA[i] * vecB[i]);
}
return dotProduct;
}
// Magnitude of the vector is the square root of the dot product of the vector with itself.
private static double Magnitude(int[] vector)
{
return Math.Sqrt(DotProduct(vector, vector));
}
}
}
datetime.datetime.now() - datetime.timedelta(0, 15 * 60)
timedelta
is a "change in time". It takes days as the first parameter and seconds in the second parameter. 15 * 60
seconds is 15 minutes.
This approach has space overhead, but a simpler implementation:
Loop can be identified by storing nodes in a Map. And before putting the node; check if node already exists. If node already exists in the map then it means that Linked List has loop.
public boolean loopDetector(Node<E> first) {
Node<E> t = first;
Map<Node<E>, Node<E>> map = new IdentityHashMap<Node<E>, Node<E>>();
while (t != null) {
if (map.containsKey(t)) {
System.out.println(" duplicate Node is --" + t
+ " having value :" + t.data);
return true;
} else {
map.put(t, t);
}
t = t.next;
}
return false;
}
To answer the first part of your question: Microsoft published their Entity Framework version history here.
The article previously mentioned is good. http://forums.oracle.com/forums/thread.jspa?threadID=191750 (as far as it goes)
If this is not something that runs frequently (don't do it on your home page), you can turn off connection pooling.
There is one other "gotcha" that is not mentioned in the article. If the first thing you try to do with the connection is call a stored procedure, ODP will HANG!!!! You will not get back an error condition to manage, just a full bore HANG! The only way to fix it is to turn OFF connection pooling. Once we did that, all issues went away.
Pooling is good in some situations, but at the cost of increased complexity around the first statement of every connection.
If the error handling approach is so good, why don't they make it an option for ODP to handle it for us????
In addition to answer of @gjha:
inline std::string ltrim_copy(const std::string& str)
{
auto it = std::find_if(str.cbegin(), str.cend(),
[](char ch) { return !std::isspace<char>(ch, std::locale::classic()); });
return std::string(it, str.cend());
}
inline std::string rtrim_copy(const std::string& str)
{
auto it = std::find_if(str.crbegin(), str.crend(),
[](char ch) { return !std::isspace<char>(ch, std::locale::classic()); });
return it == str.crend() ? std::string() : std::string(str.cbegin(), ++it.base());
}
inline std::string trim_copy(const std::string& str)
{
auto it1 = std::find_if(str.cbegin(), str.cend(),
[](char ch) { return !std::isspace<char>(ch, std::locale::classic()); });
if (it1 == str.cend()) {
return std::string();
}
auto it2 = std::find_if(str.crbegin(), str.crend(),
[](char ch) { return !std::isspace<char>(ch, std::locale::classic()); });
return it2 == str.crend() ? std::string(it1, str.cend()) : std::string(it1, ++it2.base());
}
You don't need anything outside the std libs
datetime.datetime.now().astimezone()
If you just replace the timezone it will not adjust the time. If your system is already UTC then .replace(tz='UTC') is fine.
>>> x=datetime.datetime.now()
datetime.datetime(2020, 11, 16, 7, 57, 5, 364576)
>>> print(x)
2020-11-16 07:57:05.364576
>>> print(x.astimezone())
2020-11-16 07:57:05.364576-07:00
>>> print(x.replace(tzinfo=datetime.timezone.utc)) # wrong
2020-11-16 07:57:05.364576+00:00
I use this snippet to check my database backups folder for backup files not compressed yet, compress them using 7-Zip, and finally deleting the *.bak
files to save some disk space.
Notice files are ordered by length (smallest to biggest) before compression to avoid some files not being compressed.
$bkdir = "E:\BackupsPWS"
$7Zip = 'C:\"Program Files"\7-Zip\7z.exe'
get-childitem -path $bkdir | Sort-Object length |
where
{
$_.extension -match ".(bak)" -and
-not (test-path ($_.fullname -replace "(bak)", "7z"))
} |
foreach
{
$zipfilename = ($_.fullname -replace "bak", "7z")
Invoke-Expression "$7Zip a $zipfilename $($_.FullName)"
}
get-childitem -path $bkdir |
where {
$_.extension -match ".(bak)" -and
(test-path ($_.fullname -replace "(bak)", "7z"))
} |
foreach { del $_.fullname }
Here you can check a PowerShell script to backup, compress and transfer those files over FTP.
Try this:
var count =0;
$('input[name="radioGroup"]').each(function(){
if (this.checked)
{
count++;
}
});
If any of radio button checked than you will get 1
I don't know how my solution compares performance wise to previous answers.
I understand that the initial question was: What is the fastest way to get min and max values in a DataTable object, this may be one way of doing it:
DataView view = table.DefaultView;
view.Sort = "AccountLevel";
DataTable sortedTable = view.ToTable();
int min = sortedTable.Rows[0].Field<int>("AccountLevel");
int max = sortedTable.Rows[sortedTable.Rows.Count-1].Field<int>("AccountLevel");
It's an easy way of achieving the same result without looping. But performance will need to be compared with previous answers. Thought I love Cylon Cats answer most.
If you are here to copy-paste code:
This is an example which removes node_modules
from history
git filter-branch --tree-filter "rm -rf node_modules" --prune-empty HEAD
git for-each-ref --format="%(refname)" refs/original/ | xargs -n 1 git update-ref -d
echo node_modules/ >> .gitignore
git add .gitignore
git commit -m 'Removing node_modules from git history'
git gc
git push origin master --force
What git actually does:
The first line iterates through all references on the same tree (--tree-filter
) as HEAD (your current branch), running the command rm -rf node_modules
. This command deletes the node_modules folder (-r
, without -r
, rm
won't delete folders), with no prompt given to the user (-f
). The added --prune-empty
deletes useless (not changing anything) commits recursively.
The second line deletes the reference to that old branch.
The rest of the commands are relatively straightforward.
Addendum: No one mentioned "Populate" --- it is very much worth your time and money looking at Mongooses Populate Method : Also explains cross documents referencing
Use .push:
items.push({'id':5});
Here's how you can do it in C#:
class Program
{
static void Main(string[] args)
{
if (File.Exists("test.db3"))
{
File.Delete("test.db3");
}
using (var connection = new SQLiteConnection("Data Source=test.db3;Version=3"))
using (var command = new SQLiteCommand("CREATE TABLE PHOTOS(ID INTEGER PRIMARY KEY AUTOINCREMENT, PHOTO BLOB)", connection))
{
connection.Open();
command.ExecuteNonQuery();
byte[] photo = new byte[] { 1, 2, 3, 4, 5 };
command.CommandText = "INSERT INTO PHOTOS (PHOTO) VALUES (@photo)";
command.Parameters.Add("@photo", DbType.Binary, 20).Value = photo;
command.ExecuteNonQuery();
command.CommandText = "SELECT PHOTO FROM PHOTOS WHERE ID = 1";
using (var reader = command.ExecuteReader())
{
while (reader.Read())
{
byte[] buffer = GetBytes(reader);
}
}
}
}
static byte[] GetBytes(SQLiteDataReader reader)
{
const int CHUNK_SIZE = 2 * 1024;
byte[] buffer = new byte[CHUNK_SIZE];
long bytesRead;
long fieldOffset = 0;
using (MemoryStream stream = new MemoryStream())
{
while ((bytesRead = reader.GetBytes(0, fieldOffset, buffer, 0, buffer.Length)) > 0)
{
stream.Write(buffer, 0, (int)bytesRead);
fieldOffset += bytesRead;
}
return stream.ToArray();
}
}
}
Have you tried the jtds
driver for SQLServer?
Above example is not Co-related Sub-Query. It is Derived Table / Inline-View since i.e, a Sub-query within FROM Clause.
A Corelated Sub-query should refer its parent(main Query) Table in it. For example See find the Nth max salary by Co-related Sub-query:
SELECT Salary
FROM Employee E1
WHERE N-1 = (SELECT COUNT(*)
FROM Employee E2
WHERE E1.salary <E2.Salary)
Co-Related Vs Nested-SubQueries.
Technical difference between Normal Sub-query and Co-related sub-query are:
1. Looping: Co-related sub-query loop under main-query; whereas nested not; therefore co-related sub-query executes on each iteration of main query. Whereas in case of Nested-query; subquery executes first then outer query executes next. Hence, the maximum no. of executes are NXM for correlated subquery and N+M for subquery.
2. Dependency(Inner to Outer vs Outer to Inner): In the case of co-related subquery, inner query depends on outer query for processing whereas in normal sub-query, Outer query depends on inner query.
3.Performance: Using Co-related sub-query performance decreases, since, it performs NXM iterations instead of N+M iterations. ¨ Co-related Sub-query Execution.
For more information with examples :
You can use the following
import { find } from 'lodash'
Then to return the entire object (not only its key or value) from the list with the following:
let match = find(savedViews, { 'ID': 'id to match'});
If you just need to check if the two strings are exactly same,
text1 = 'apple'
text2 = 'apple'
text1 == text2
The result will be
True
If you need the matching percentage,
import difflib
text1 = 'Since 1958.'
text2 = 'Since 1958'
output = str(int(difflib.SequenceMatcher(None, text1, text2).ratio()*100))
Matching percentage output will be,
'95'
Simply have them in the same controller, and do something like this:
HTML:
<input id="upload"
type="file"
ng-file-select="onFileSelect($files)"
style="display: none;">
<button type="button"
ng-click="startUpload()">Upload</button>
JS:
var MyCtrl = [ '$scope', '$upload', function($scope, $upload) {
$scope.files = [];
$scope.startUpload = function(){
for (var i = 0; i < $scope.files.length; i++) {
$upload($scope.files[i]);
}
}
$scope.onFileSelect = function($files) {
$scope.files = $files;
};
}];
This is, in my opinion, the best way to do it in angular. Using jQuery to find the element and trigger an event isn't the best practice.
The Following function will help you to get Days , Hours , Minutes , seconds
toDDHHMMSS(inputSeconds){
const Days = Math.floor( inputSeconds / (60 * 60 * 24) );
const Hour = Math.floor((inputSeconds % (60 * 60 * 24)) / (60 * 60));
const Minutes = Math.floor(((inputSeconds % (60 * 60 * 24)) % (60 * 60)) / 60 );
const Seconds = Math.floor(((inputSeconds % (60 * 60 * 24)) % (60 * 60)) % 60 );
let ddhhmmss = '';
if (Days > 0){
ddhhmmss += Days + ' Day ';
}
if (Hour > 0){
ddhhmmss += Hour + ' Hour ';
}
if (Minutes > 0){
ddhhmmss += Minutes + ' Minutes ';
}
if (Seconds > 0){
ddhhmmss += Seconds + ' Seconds ';
}
return ddhhmmss;
}
alert( toDDHHMMSS(2000));
I had this problem, but I didn't want to use annotation in my entities, so I solved by creating a constructor for my class, this constructor must not have a reference back to the entities who references this entity. Let's say this scenario.
public class A{
private int id;
private String code;
private String name;
private List<B> bs;
}
public class B{
private int id;
private String code;
private String name;
private A a;
}
If you try to send to the view the class B
or A
with @ResponseBody
it may cause an infinite loop. You can write a constructor in your class and create a query with your entityManager
like this.
"select new A(id, code, name) from A"
This is the class with the constructor.
public class A{
private int id;
private String code;
private String name;
private List<B> bs;
public A(){
}
public A(int id, String code, String name){
this.id = id;
this.code = code;
this.name = name;
}
}
However, there are some constrictions about this solution, as you can see, in the constructor I did not make a reference to List bs this is because Hibernate does not allow it, at least in version 3.6.10.Final, so when I need to show both entities in a view I do the following.
public A getAById(int id); //THE A id
public List<B> getBsByAId(int idA); //the A id.
The other problem with this solution, is that if you add or remove a property you must update your constructor and all your queries.
All you need just run a test wait till finish, after that go to Build Setting, Search in to Build Setting Inference, change swift 3 @objc Inference to (Default). that's all what i did and worked perfect.
With a virtual machine, we have a server, we have a host operating system on that server, and then we have a hypervisor. And then running on top of that hypervisor, we have any number of guest operating systems with an application and its dependent binaries, and libraries on that server. It brings a whole guest operating system with it. It's quite heavyweight. Also there's a limit to how much you can actually put on each physical machine.
Docker containers on the other hand, are slightly different. We have the server. We have the host operating system. But instead a hypervisor, we have the Docker engine, in this case. In this case, we're not bringing a whole guest operating system with us. We're bringing a very thin layer of the operating system, and the container can talk down into the host OS in order to get to the kernel functionality there. And that allows us to have a very lightweight container.
All it has in there is the application code and any binaries and libraries that it requires. And those binaries and libraries can actually be shared across different containers if you want them to be as well. And what this enables us to do, is a number of things. They have much faster startup time. You can't stand up a single VM in a few seconds like that. And equally, taking them down as quickly.. so we can scale up and down very quickly and we'll look at that later on.
Every container thinks that it’s running on its own copy of the operating system. It’s got its own file system, own registry, etc. which is a kind of a lie. It’s actually being virtualized.
I liked the approach used by Joel S, but I also love the simplicity of document.activeElement
. I used jQuery and combined the two. Older browsers that don't support document.activeElement
will use jQuery.data()
to store the value of 'hasFocus'. Newer browsers will use document.activeElement
. I assume that document.activeElement
will have better performance.
(function($) {
var settings;
$.fn.focusTracker = function(options) {
settings = $.extend({}, $.focusTracker.defaults, options);
if (!document.activeElement) {
this.each(function() {
var $this = $(this).data('hasFocus', false);
$this.focus(function(event) {
$this.data('hasFocus', true);
});
$this.blur(function(event) {
$this.data('hasFocus', false);
});
});
}
return this;
};
$.fn.hasFocus = function() {
if (this.length === 0) { return false; }
if (document.activeElement) {
return this.get(0) === document.activeElement;
}
return this.data('hasFocus');
};
$.focusTracker = {
defaults: {
context: 'body'
},
focusedElement: function(context) {
var focused;
if (!context) { context = settings.context; }
if (document.activeElement) {
if ($(document.activeElement).closest(context).length > 0) {
focused = document.activeElement;
}
} else {
$(':visible:enabled', context).each(function() {
if ($(this).data('hasFocus')) {
focused = this;
return false;
}
});
}
return $(focused);
}
};
})(jQuery);
Please do the following steps:
1: Deleting the Podfile.lock file in your project folder
2: Deleting the Pods folder in your project folder
3: Execute 'pod install' in your project folder
4: Do a "Clean" in Xcode
5: Rebuild your project
One should also consider another intuitive way to do this using filter()
from dplyr
. Here are some examples:
set.seed(123)
df <- data.frame(name = sample(letters, 100, TRUE),
date = sample(1:500, 100, TRUE))
library(dplyr)
filter(df, date < 50) # date less than 50
filter(df, date %in% 50:100) # date between 50 and 100
filter(df, date %in% 1:50 & name == "r") # date between 1 and 50 AND name is "r"
filter(df, date %in% 1:50 | name == "r") # date between 1 and 50 OR name is "r"
# You can also use the pipe (%>%) operator
df %>% filter(date %in% 1:50 | name == "r")
System.String is a reference type and already "nullable".
Nullable<T> and the ? suffix are for value types such as Int32, Double, DateTime, etc.
To fix it, set the scope to provided. This tells Maven use code servlet-api.jar for compiling and testing only, but NOT include it in the WAR file. The deployed container will “provide” the servlet-api.jar at runtime.
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
None of the above worked for me (tomcat 7.0.62)... As Sensei_Shoh notes see the class above the message and add this to logging.properties. My logs were:
Jan 18, 2016 8:44:21 PM org.apache.catalina.startup.TldConfig execute
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
so I added
org.apache.catalina.startup.TldConfig.level = FINE
in conf/logging.properties
After that I got so many "offending" files that I did not bother skipping them (and also reverted to normal logging...)
Do this if you are using GoDaddy, I'm using Lets Encrypt SSL if you want you can get it.
Here is the code - The code is in asp.net core 2.0 but should work in above versions.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using MailKit.Net.Smtp;
using MimeKit;
namespace UnityAssets.Website.Services
{
public class EmailSender : IEmailSender
{
public async Task SendEmailAsync(string toEmailAddress, string subject, string htmlMessage)
{
var email = new MimeMessage();
email.From.Add(new MailboxAddress("Application Name", "[email protected]"));
email.To.Add(new MailboxAddress(toEmailAddress, toEmailAddress));
email.Subject = subject;
var body = new BodyBuilder
{
HtmlBody = htmlMessage
};
email.Body = body.ToMessageBody();
using (var client = new SmtpClient())
{
//provider specific settings
await client.ConnectAsync("smtp.gmail.com", 465, true).ConfigureAwait(false);
await client.AuthenticateAsync("[email protected]", "sketchunity").ConfigureAwait(false);
await client.SendAsync(email).ConfigureAwait(false);
await client.DisconnectAsync(true).ConfigureAwait(false);
}
}
}
}
It depends:
int foo()
{
static int x;
return ++x;
}
The function would return 1, 2, 3, etc. --- the variable is not on the stack.
static int foo()
{
}
It means that this function has scope only in this file. So a.c and b.c can have different foo()
s, and foo is not exposed to shared objects. So if you defined foo in a.c you couldn't access it from b.c
or from any other places.
In most C libraries all "private" functions are static and most "public" are not.
In MySQL Workbench you can export the results of any single-table query as a list of INSERT
statements. Just run the query, and then:
Export/Import
above the resultsFormat
select SQL INSERT statements
Save
Export
Your problem is this
<button type="button" value=" Send" class="btn btn-success" type="submit" id="submit" />
You've set the type twice. Your browser is only accepting the first, which is "button".
<button type="submit" value=" Send" class="btn btn-success" id="submit" />
Wrap all the children inside of another LinearLayout with wrap_content
for both the width and the height as well as the vertical orientation.
There is a way how you can do it. But if you had to use it, either you are a bad programmer or you are using a code written by bad programmers. So, you should think about stopping being a bad programmer or stopping using this bad code. This solution is only for situations when THERE IS NO OTHER WAY.
Thread f = <A thread to be stopped>
Method m = Thread.class.getDeclaredMethod( "stop0" , new Class[]{Object.class} );
m.setAccessible( true );
m.invoke( f , new ThreadDeath() );
Or if you would try :
$("#foo").find("select[name=bar]").val();
I used It today and It working fine.
Since Android 11 (API level 30), most user-installed apps are not visible by default. You must either statically declare which apps and/or intent filters you are going to get info about in your manifest like this:
<manifest>
<queries>
<!-- Explicit apps you know in advance about: -->
<package android:name="com.example.this.app"/>
<package android:name="com.example.this.other.app"/>
<!-- Intent filter signatures that you are going to query: -->
<intent>
<action android:name="android.intent.action.SEND" />
<data android:mimeType="image/jpeg" />
</intent>
</queries>
...
</manifest>
Or require the QUERY_ALL_PACKAGES
permission.
After doing the above, the other answers here still apply.
Learn more here:
If you want something lightweight (jar size ~ 20 kb) and simple to use, you can try argument-parser. It can be used in most of the use cases, supports specifying arrays in the argument and has no dependency on any other library. It works for Java 1.5 or above. Below excerpt shows an example on how to use it:
public static void main(String[] args) {
String usage = "--day|-d day --mon|-m month [--year|-y year][--dir|-ds directoriesToSearch]";
ArgumentParser argParser = new ArgumentParser(usage, InputData.class);
InputData inputData = (InputData) argParser.parse(args);
showData(inputData);
new StatsGenerator().generateStats(inputData);
}
More examples can be found here
These messages are rather misleading and understandably a source of confusion. Older Ubuntu versions used Libav which is a fork of the FFmpeg project. FFmpeg returned in Ubuntu 15.04 "Vivid Vervet".
The fork was basically a non-amicable result of conflicting personalities and development styles within the FFmpeg community. It is worth noting that the maintainer for Debian/Ubuntu switched from FFmpeg to Libav on his own accord due to being involved with the Libav fork.
ffmpeg
vs the fake oneFor a while both Libav and FFmpeg separately developed their own version of ffmpeg
.
Libav then renamed their bizarro ffmpeg
to avconv
to distance themselves from the FFmpeg project. During the transition period the "not developed anymore" message was displayed to tell users to start using avconv
instead of their counterfeit version of ffmpeg
. This confused users into thinking that FFmpeg (the project) is dead, which is not true. A bad choice of words, but I can't imagine Libav not expecting such a response by general users.
This message was removed upstream when the fake "ffmpeg
" was finally removed from the Libav source, but, depending on your version, it can still show up in Ubuntu because the Libav source Ubuntu uses is from the ffmpeg-to-avconv transition period.
In June 2012, the message was re-worded for the package libav - 4:0.8.3-0ubuntu0.12.04.1
. Unfortunately the new "deprecated" message has caused additional user confusion.
Starting with Ubuntu 15.04 "Vivid Vervet", FFmpeg's ffmpeg
is back in the repositories again.
To further complicate matters, Libav chose a name that was historically used by FFmpeg to refer to its libraries (libavcodec, libavformat, etc). For example the libav-user mailing list, for questions and discussions about using the FFmpeg libraries, is unrelated to the Libav project.
If you are using avconv
then you are using Libav. If you are using ffmpeg
you could be using FFmpeg or Libav. Refer to the first line in the console output to tell the difference: the copyright notice will either mention FFmpeg or Libav.
Secondly, the version numbering schemes differ. Each of the FFmpeg or Libav libraries contains a version.h
header which shows a version number. FFmpeg will end in three digits, such as 57.67.100, and Libav will end in one digit such as 57.67.0. You can also view the library version numbers by running ffmpeg
or avconv
and viewing the console output.
ffmpeg
The real ffmpeg
is in the repository, so you can install it with:
apt-get install ffmpeg
Your options are:
ffmpeg
,ffmpeg
,These methods are non-intrusive, reversible, and will not interfere with the system or any repository packages.
Another possible option is to upgrade to Ubuntu 15.04 "Vivid Vervet" or newer and just use ffmpeg
from the repository.
For an interesting blog article on the situation, as well as a discussion about the main technical differences between the projects, see The FFmpeg/Libav situation.
For tables that have a contentInset
, setting the content offset to CGPointZero
will not work. It'll scroll to the content top vs. scrolling to the table top.
Taking content inset into account produces this instead:
[tableView setContentOffset:CGPointMake(0, -tableView.contentInset.top) animated:NO];
Test it yourself, but here's the output.
php -r '$a=array("a","b","c"); print_r($a); unset($a[1]); print_r($a);'
Array
(
[0] => a
[1] => b
[2] => c
)
Array
(
[0] => a
[2] => c
)
If you're playing around in Blazor and get the error, you need to add the package Microsoft.AspNetCore.Blazor.HttpClient
.
The top answer didn´t work for me. After some investigation I found the required information on "Android Developer": https://developer.android.com/training/articles/security-ssl.html#SelfSigned
Creating an empty implementation of X509TrustManager did the trick:
private static class MyTrustManager implements X509TrustManager
{
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException
{
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException
{
}
@Override
public X509Certificate[] getAcceptedIssuers()
{
return null;
}
}
...
HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
try
{
// Create an SSLContext that uses our TrustManager
SSLContext context = SSLContext.getInstance("TLS");
TrustManager[] tmlist = {new MyTrustManager()};
context.init(null, tmlist, null);
conn.setSSLSocketFactory(context.getSocketFactory());
}
catch (NoSuchAlgorithmException e)
{
throw new IOException(e);
} catch (KeyManagementException e)
{
throw new IOException(e);
}
conn.setRequestMethod("GET");
int rcode = conn.getResponseCode();
Please be aware that this empty implementation of TustManager is just an example and using it in a productive environment would cause a severe security threat!
Think of it as just another safety level. You can design your table without foreign key relationships - perfectly valid - and ensure existence of associated entities entirely on the business layer. However, foreign keys are considered good design practice because they add another constraint level in case something messes up on the business layer. Same goes for field size limitation and not using varchar MAX.
Move temporarily .gitignore to .gitignore.bck
You can add style for :after a like html code.
For example:
var value = 22;
body.append('<style>.wrapper:after{border-top-width: ' + value + 'px;}</style>');
Do a query:
SELECT * FROM v$session s;
Find your user and do the next query (with appropriate parameters):
ALTER SYSTEM KILL SESSION '<SID>, <SERIAL>';
Here, Environment.NewLine doesn't worked.
I put a "<br/>" in a string and worked.
Ex:
ltrYourLiteral.Text = "First line.<br/>Second Line.";
More Suggestive answer supporting rmaddy's answer as our primary purpose is to delete unnecessary file and folder:
Delete this folder after every few days interval. Most of the time, it occupy huge space!
~/Library/Developer/Xcode/DerivedData
All your targets are kept in the archived form in Archives folder. Before you decide to delete contents of this folder, here is a warning - if you want to be able to debug deployed versions of your App, you shouldn’t delete the archives. Xcode will manage of archives and creates new file when new build is archived.
~/Library/Developer/Xcode/Archives
iOS Device Support folder creates a subfolder with the device version as an identifier when you attach the device. Most of the time it’s just old stuff. Keep the latest version and rest of them can be deleted (if you don’t have an app that runs on 5.1.1, there’s no reason to keep the 5.1.1 directory/directories). If you really don't need these, delete. But we should keep a few although we test app from device mostly.
~/Library/Developer/Xcode/iOS DeviceSupport
Core Simulator folder is familiar for many Xcode users. It’s simulator’s territory; that's where it stores app data. It’s obvious that you can toss the older version simulator folder/folders if you no longer support your apps for those versions. As it is user data, no big issue if you delete it completely but it’s safer to use ‘Reset Content and Settings’ option from the menu to delete all of your app data in a Simulator.
~/Library/Developer/CoreSimulator
(Here's a handy shell command for step 5: xcrun simctl delete unavailable
)
Caches are always safe to delete since they will be recreated as necessary. This isn’t a directory; it’s a file of kind Xcode Project. Delete away!
~/Library/Caches/com.apple.dt.Xcode
Additionally, Apple iOS device automatically syncs specific files and settings to your Mac every time they are connected to your Mac machine. To be on safe side, it’s wise to use Devices pane of iTunes preferences to delete older backups; you should be retaining your most recent back-ups off course.
~/Library/Application Support/MobileSync/Backup
Source: https://ajithrnayak.com/post/95441624221/xcode-users-can-free-up-space-on-your-mac
I got back about 40GB!
I would check the "End of File" flag:
If temp_rst1.EOF Or temp_rst2.EOF Then MsgBox "null"
This is very annoying and I expect future versions of C# will address this need. I find the easiest work around to be either use a different data structure type or rename the "items" for your sanity and for the sanity of others reading your code.
Tuple<ApiResource, JSendResponseStatus> result = await SendApiRequest();
ApiResource apiResource = result.Item1;
JSendResponseStatus jSendStatus = result.Item2;
To exit hitting :q will let you quit.
If you want to quit without saving you can hit :q!
A google search on "vim cheatsheet" can provide you with a reference you should print out with a collection of quick shortcuts.
Just throw an empty, hidden div onto your html page and give it an ID. Then you can use that for your jQuery UI dialog. You can populate the text just like you normally would with any jquery call.
It should also be mentioned that the "pk" should be a key field. The self-join
SELECT t1.* FROM db.table t1
JOIN db.table t2 ON t1.someField = t2.someField AND t1.pk != t2.pk
by Bill Karwin give you all the records that are duplicates which is what I wanted. Because some have more than two, you can get the same record more than once. I wrote all to another table with the same fields to get rid of the same records by key fields suppression. I tried
SELECT * FROM db.table HAVING COUNT(someField) > 1
above first. The data returned from it give only one of the duplicates, less than 1/2 of what this gives you but the count is good if that is all you want.
infile = open('filename.txt', 'r')
firstLine = infile.readline()
It is as simple as this:
@EventListener(ApplicationReadyEvent.class)
public void doSomethingAfterStartup() {
System.out.println("hello world, I have just started up");
}
Tested on version 1.5.1.RELEASE
<html>
<head>
<style>
*
{
margin:0;
padding:0;
}
html, body
{
height:100%;
}
#distance
{
width:1px;
height:50%;
margin-bottom:-300px;
float:left;
}
#something
{
position:relative;
margin:0 auto;
text-align:left;
clear:left;
width:800px;
min-height:600px;
height:auto;
border: solid 1px #993333;
z-index: 0;
}
/* for Internet Explorer */
* html #something{
height: 600px;
}
</style>
</head>
<body>
<div id="distance"></div>
<div id="something">
</div>
</body>
</html>
Tested in FF2-3, IE6-7, Opera and works well!
It can be done like this:
for i in range(len(collection)-1, -1, -1):
print collection[i]
# print(collection[i]) for python 3. +
So your guess was pretty close :) A little awkward but it's basically saying: start with 1 less than len(collection)
, keep going until you get to just before -1, by steps of -1.
Fyi, the help
function is very useful as it lets you view the docs for something from the Python console, eg:
help(range)
You cannot in ksh, but you can in csh.
alias mkcd 'mkdir \!^; cd \!^1'
In ksh, function is the way to go. But if you really really wanted to use alias:
alias mkcd='_(){ mkdir $1; cd $1; }; _'
It's not possible to configure an IIS managed handler to run in classic mode. You should be running IIS in integrated mode if you want to do that.
You can learn more about modules, handlers and IIS modes in the following blog post:
IIS 7.0, ASP.NET, pipelines, modules, handlers, and preconditions
For handlers, if you set preCondition="integratedMode" in the mapping, the handler will only run in integrated mode. On the other hand, if you set preCondition="classicMode" the handler will only run in classic mode. And if you omit both of these, the handler can run in both modes, although this is not possible for a managed handler.
You should try to avoid using Singletons, but if you ever do need to, Lazy<T>
makes implementing lazy, thread-safe singletons easy:
public sealed class Singleton
{
// Because Singleton's constructor is private, we must explicitly
// give the Lazy<Singleton> a delegate for creating the Singleton.
static readonly Lazy<Singleton> instanceHolder =
new Lazy<Singleton>(() => new Singleton());
Singleton()
{
// Explicit private constructor to prevent default public constructor.
...
}
public static Singleton Instance => instanceHolder.Value;
}
One possible solution is do the concatenation manually, here is some useful code:
import json
def append_to_json(_dict,path):
with open(path, 'ab+') as f:
f.seek(0,2) #Go to the end of file
if f.tell() == 0 : #Check if file is empty
f.write(json.dumps([_dict]).encode()) #If empty, write an array
else :
f.seek(-1,2)
f.truncate() #Remove the last character, open the array
f.write(' , '.encode()) #Write the separator
f.write(json.dumps(_dict).encode()) #Dump the dictionary
f.write(']'.encode()) #Close the array
You should be careful when editing the file outside the script not add any spacing at the end.
A. Grab file data from the file field
The first thing to do is bind a function to the change event on your file field and a function for grabbing the file data:
// Variable to store your files
var files;
// Add events
$('input[type=file]').on('change', prepareUpload);
// Grab the files and set them to our variable
function prepareUpload(event)
{
files = event.target.files;
}
This saves the file data to a file variable for later use.
B. Handle the file upload on submit
When the form is submitted you need to handle the file upload in its own AJAX request. Add the following binding and function:
$('form').on('submit', uploadFiles);
// Catch the form submit and upload the files
function uploadFiles(event)
{
event.stopPropagation(); // Stop stuff happening
event.preventDefault(); // Totally stop stuff happening
// START A LOADING SPINNER HERE
// Create a formdata object and add the files
var data = new FormData();
$.each(files, function(key, value)
{
data.append(key, value);
});
$.ajax({
url: 'submit.php?files',
type: 'POST',
data: data,
cache: false,
dataType: 'json',
processData: false, // Don't process the files
contentType: false, // Set content type to false as jQuery will tell the server its a query string request
success: function(data, textStatus, jqXHR)
{
if(typeof data.error === 'undefined')
{
// Success so call function to process the form
submitForm(event, data);
}
else
{
// Handle errors here
console.log('ERRORS: ' + data.error);
}
},
error: function(jqXHR, textStatus, errorThrown)
{
// Handle errors here
console.log('ERRORS: ' + textStatus);
// STOP LOADING SPINNER
}
});
}
What this function does is create a new formData object and appends each file to it. It then passes that data as a request to the server. 2 attributes need to be set to false:
C. Upload the files
Quick and dirty php script to upload the files and pass back some info:
<?php // You need to add server side validation and better error handling here
$data = array();
if(isset($_GET['files']))
{
$error = false;
$files = array();
$uploaddir = './uploads/';
foreach($_FILES as $file)
{
if(move_uploaded_file($file['tmp_name'], $uploaddir .basename($file['name'])))
{
$files[] = $uploaddir .$file['name'];
}
else
{
$error = true;
}
}
$data = ($error) ? array('error' => 'There was an error uploading your files') : array('files' => $files);
}
else
{
$data = array('success' => 'Form was submitted', 'formData' => $_POST);
}
echo json_encode($data);
?>
IMP: Don't use this, write your own.
D. Handle the form submit
The success method of the upload function passes the data sent back from the server to the submit function. You can then pass that to the server as part of your post:
function submitForm(event, data)
{
// Create a jQuery object from the form
$form = $(event.target);
// Serialize the form data
var formData = $form.serialize();
// You should sterilise the file names
$.each(data.files, function(key, value)
{
formData = formData + '&filenames[]=' + value;
});
$.ajax({
url: 'submit.php',
type: 'POST',
data: formData,
cache: false,
dataType: 'json',
success: function(data, textStatus, jqXHR)
{
if(typeof data.error === 'undefined')
{
// Success so call function to process the form
console.log('SUCCESS: ' + data.success);
}
else
{
// Handle errors here
console.log('ERRORS: ' + data.error);
}
},
error: function(jqXHR, textStatus, errorThrown)
{
// Handle errors here
console.log('ERRORS: ' + textStatus);
},
complete: function()
{
// STOP LOADING SPINNER
}
});
}
Final note
This script is an example only, you'll need to handle both server and client side validation and some way to notify users that the file upload is happening. I made a project for it on Github if you want to see it working.
NumPy is not just more efficient; it is also more convenient. You get a lot of vector and matrix operations for free, which sometimes allow one to avoid unnecessary work. And they are also efficiently implemented.
For example, you could read your cube directly from a file into an array:
x = numpy.fromfile(file=open("data"), dtype=float).reshape((100, 100, 100))
Sum along the second dimension:
s = x.sum(axis=1)
Find which cells are above a threshold:
(x > 0.5).nonzero()
Remove every even-indexed slice along the third dimension:
x[:, :, ::2]
Also, many useful libraries work with NumPy arrays. For example, statistical analysis and visualization libraries.
Even if you don't have performance problems, learning NumPy is worth the effort.
If you aren't using an auto-filter (i.e. you have manually hidden rows), you will need to use the AGGREGATE
function instead of SUBTOTAL
.
calling the method is like this
[className methodName]
however if you want to call the method in the same class you can use self
[self methodName]
all the above is because your method was not taking any parameters
however if your method takes parameters you will need to do it like this
[self methodName:Parameter]
We can make a plugin pretty easily:
$.fn.filterData = function(key, value) {
return this.filter(function() {
return $(this).data(key) == value;
});
};
Usage (checking a radio button):
$('input[name=location_id]').filterData('my-data','data-val').prop('checked',true);
check the command : NA!=NA
: you'll get the result NA
, hence the error message.
You have to use the function is.na
for your if
statement to work (in general, it is always better to use this function to check for NA
values) :
comments = c("no","yes",NA)
for (l in 1:length(comments)) {
if (!is.na(comments[l])) print(comments[l])
}
[1] "no"
[1] "yes"
Yes, the Jackson manual parser design is quite different from other libraries. In particular, you will notice that JsonNode
has most of the functions that you would typically associate with array nodes from other API's. As such, you do not need to cast to an ArrayNode
to use. Here's an example:
JSON:
{
"objects" : ["One", "Two", "Three"]
}
Code:
final String json = "{\"objects\" : [\"One\", \"Two\", \"Three\"]}";
final JsonNode arrNode = new ObjectMapper().readTree(json).get("objects");
if (arrNode.isArray()) {
for (final JsonNode objNode : arrNode) {
System.out.println(objNode);
}
}
Output:
"One"
"Two"
"Three"
Note the use of isArray
to verify that the node is actually an array before iterating. The check is not necessary if you are absolutely confident in your datas structure, but its available should you need it (and this is no different from most other JSON libraries).
preg_replace("/[[:blank:]]+/"," ",$input)
Officially it's Ctrl+F11 & Ctrl+F12 or KEYPAD 7 & KEYPAD 9.
In practise it's a bit quirky.
Specifically it's Left Ctrl+F11 and Left Ctrl+F12 to switch to previous orientation and next orientation respectively.
You have to release Ctrl before you can rotate again.
KEYPAD 7 and KEYPAD 9 only work with Num Lock OFF (so they're acting as Home & PageUp rather than 7 & 9).
The only orientations are vertically upright and rotated one quarter-turn anti-clockwise.
Maybe a bit too much info for such a simple question, but it drove me half-mad finding this out.
Note: This was tested on Android SDK R16 and a very old keyboard, modern keyboards may behave differently.
If you want to put the environment for system-wide use you can do so with /etc/environment
file.
I do not know much about Java but URL query arguments should be separated by "&", not "?"
http://tools.ietf.org/html/rfc3986 is good place for reference using "sub-delim" as keyword. http://en.wikipedia.org/wiki/Query_string is another good source.
In my case, the problem was the protocol. I was trying to call a script url with http
instead of https
.
It's more convenient to use a session, this way you don't have to remember to set headers each time:
session = requests.Session()
session.headers.update({'User-Agent': 'Custom user agent'})
session.get('https://httpbin.org/headers')
By default, session also manages cookies for you. In case you want to disable that, see this question.
You can use map
:
List<String> names =
personList.stream()
.map(Person::getName)
.collect(Collectors.toList());
EDIT :
In order to combine the Lists of friend names, you need to use flatMap
:
List<String> friendNames =
personList.stream()
.flatMap(e->e.getFriends().stream())
.collect(Collectors.toList());
Exceptions are expensive, but in this case the RegEx takes much longer. The code below shows a simple test of two functions -- one using exceptions and one using regex. On my machine the RegEx version is 10 times slower than the exception.
import java.util.Date;
public class IsNumeric {
public static boolean isNumericOne(String s) {
return s.matches("-?\\d+(\\.\\d+)?"); //match a number with optional '-' and decimal.
}
public static boolean isNumericTwo(String s) {
try {
Double.parseDouble(s);
return true;
} catch (Exception e) {
return false;
}
}
public static void main(String [] args) {
String test = "12345.F";
long before = new Date().getTime();
for(int x=0;x<1000000;++x) {
//isNumericTwo(test);
isNumericOne(test);
}
long after = new Date().getTime();
System.out.println(after-before);
}
}
If you have a master form and are forced to have a "form with a form" Here is what you can do... in my case I had a link in the globalHeader and I wanted to perform a post when it was clicked:
Example form post with link button submit:
Instead of a form... wrap your input in a div:
<div id="gap_form"><input type="hidden" name="PostVar"/><a id="myLink" href="javascript:Form2.submit()">A Link</a></div>
js file:
$(document).ready(function () {
(function () {
$('#gap_form').wrap('<form id="Form2" action="http://sitetopostto.com/postpage" method="post" target="_blank"></form>');
})();});
This would wrap everything inside the div "gap_form" inside a form on the fly and the link would submit that form. I have this exact example working on a page now... (In my example...You could accomplish the same thing by redirecting to a new page and submitting the form on that page... but I like this better)
jdk.tools:jdk.tools
(or com.sun:tools
, or whatever you name it) is a JAR file that is distributed with JDK. Usually you add it to maven projects like this:
<dependency>
<groupId>jdk.tools</groupId>
<artifactId>jdk.tools</artifactId>
<scope>system</scope>
<systemPath>${java.home}/../lib/tools.jar</systemPath>
</dependency>
See, the Maven FAQ for adding dependencies to tools.jar
Or, you can manually install tools.jar
in the local repository using:
mvn install:install-file -DgroupId=jdk.tools -DartifactId=jdk.tools -Dpackaging=jar -Dversion=1.6 -Dfile=tools.jar -DgeneratePom=true
and then reference it like Cloudera did, using:
<dependency>
<groupId>jdk.tools</groupId>
<artifactId>jdk.tools</artifactId>
<version>1.6</version>
</dependency>
If
npm cache clean --force
doesn't work. try
npm cache clean --force
npm update
You could also check using the age()
function
select * from mytable where age( mydate, now() ) > '1 year';
age()
wil return an interval.
For example age( '2015-09-22', now() )
will return -1 years -7 days -10:56:18.274131
The spring configuration precedence is as follows.
So your configuration will be overridden at the command-line if you wish to do that. But the recommendation is to avoid overriding, though you can use multiple profiles.
I recently faced similar issue where the atom editor will not close. Neither was responding. Kill / kill -9 / force exit from Activity Monitor - didn't work. Finally had to restart my mac to close the app.
double *ptr = malloc(sizeof(double *) * TIME); /* ... */ for(tcount = 0; tcount <= TIME; tcount++) ^^
<=
to <
or alloc
SIZE + 1
elementsmalloc
is wrong, you'll want sizeof(double)
instead of
sizeof(double *)
ouah
comments, although not directly linked to your corruption problem, you're using *(ptr+tcount)
without initializing itptr[tcount]
instead of *(ptr + tcount)
malloc
+ free
since you already know SIZE
For all Centos 7 users on a Laravel context, there is no need to disable Selinux, just run these commands:
yum install policycoreutils-python -y # might not be necessary, try the below first
semanage fcontext -a -t httpd_sys_rw_content_t "/var/www/html/laravel/storage(/.*)?" # add a new httpd read write content to sellinux for the specific folder, -m for modify
semanage fcontext -a -t httpd_sys_rw_content_t "/var/www/html/laravel/bootstrap/cache(/.*)?" # same as the above for b/cache
restorecon -Rv /var/www/html/ # this command is very important to, it's like a restart to apply the new rules
Lastly, make sure your hosts, ips and virtual hosts are all correctly for remote accessing.
Selinux is intended to restrict access even to root users, so only the necessary stuff might be accessed, at least on a generalist overview, it's extra security, disabling it is not a good practise, there are many links to learn Selinux, but for this case it is not even required.
As Answered here
Use below code :
TelephonyManager tMgr = (TelephonyManager)mAppContext.getSystemService(Context.TELEPHONY_SERVICE);
String mPhoneNumber = tMgr.getLine1Number();
In AndroidManifest.xml, give the following permission:
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
But remember, this code does not always work, since Cell phone number is dependent on the SIM Card and the Network operator / Cell phone carrier.
Also, try checking in Phone--> Settings --> About --> Phone Identity, If you are able to view the Number there, the probability of getting the phone number from above code is higher. If you are not able to view the phone number in the settings, then you won't be able to get via this code!
Suggested Workaround:
Do the above 4 steps as one time activity during the app's first launch. Later on, whenever phone number is required, use the value available in shared preference.
Oracle 10g Express Edition ships with Oracle Application Express (Apex) built-in. You're running this in its SQL Commands window, which doesn't support SQL*Plus syntax.
That doesn't matter, because (as you have discovered) the BEGIN...END syntax does work in Apex.
I wanted to work in VSO/TFS, then push publicly to GitHub when ready. Initial repo created in private VSO. When it came time to add to GitHub I did:
git remote add mygithubrepo https://github.com/jhealy/kinect2.git
git push -f mygithubrepo master
Worked like a champ...
For a sanity check, issue "git remote -v" to list the repositories associated with a project.
C:\dev\kinect\vso-repo-k2work\FaceNSkinWPF>git remote -v
githubrepo https://github.com/jhealy/kinect2.git (fetch)
githubrepo https://github.com/jhealy/kinect2.git (push)
origin https://devfish.visualstudio.com/DefaultCollection/_git/Kinect2Work (fetch)
origin https://devfish.visualstudio.com/DefaultCollection/_git/Kinect2Work (push)
Simple way, worked for me... Hope this helps someone.
You must wrap the returning object literal into parentheses. Otherwise curly braces will be considered to denote the function’s body. The following works:
p => ({ foo: 'bar' });
You don't need to wrap any other expression into parentheses:
p => 10;
p => 'foo';
p => true;
p => [1,2,3];
p => null;
p => /^foo$/;
and so on.
Reference: MDN - Returning object literals
You 'can' have a static class in C++, as mentioned before, a static class is one that does not have any objects of it instantiated it. In C++, this can be obtained by declaring the constructor/destructor as private. End result is the same.
There is a free open source tool called Anchore that you can use to scan container images. This command will allow you to list all files in a container image
anchore-cli image content myrepo/app:latest files
On my machine:
C:\Program Files (x86)\OpenERP 6.1-20121026-233219\PostgreSQL\data
If all of these rows are related and you need to alter the tabular data ... why not just wrap the entire table in a form, and change GET to POST (unless you know that you're not going to be sending more than the max amount of data a GET request can send).
I cannot wrap the entire table in a form, because some input fields of each row are input type="file" and files may be large. When the user submits the form, I want to POST only fields of current row, not all fields of the all rows which may have unneeded huge files, causing form to submit very slowly.
So, I tried incorrect nesting: tr/form and form/tr. However, it works only when one does not try to add new inputs dynamically into the form. Dynamically added inputs will not belong to incorrectly nested form, thus won't get submitted. (valid form/table dynamically inputs are submitted just fine).
Nesting div[display:table]/form/div[display:table-row]/div[display:table-cell] produced non-uniform widths of grid columns. I managed to get uniform layout when I replaced div[display:table-row] to form[display:table-row] :
div.grid {
display: table;
}
div.grid > form {
display: table-row;
div.grid > form > div {
display: table-cell;
}
div.grid > form > div.head {
text-align: center;
font-weight: 800;
}
For the layout to be displayed correctly in IE8:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
...
<meta http-equiv="X-UA-Compatible" content="IE=8, IE=9, IE=10" />
Sample of output:
<div class="grid" id="htmlrow_grid_item">
<form>
<div class="head">Title</div>
<div class="head">Price</div>
<div class="head">Description</div>
<div class="head">Images</div>
<div class="head">Stock left</div>
<div class="head">Action</div>
</form>
<form action="/index.php" enctype="multipart/form-data" method="post">
<div title="Title"><input required="required" class="input_varchar" name="add_title" type="text" value="" /></div>
It would be much harder to make this code work in IE6/7, however.
A bit old, but I was still getting the same SettingWithCopyWarning. Here was my solution:
df.loc[:, 'quantity'] = df['quantity'] * -1
First you need to get the current date
var currentDate = new Date();
Then you need to place it in the arguments of datepicker like given below
$("#datepicker").datepicker("setDate", currentDate);
Check the following jsfiddle.
For future readers, this should help:
public void show() {
if(mContext instanceof Activity) {
Activity activity = (Activity) mContext;
if (!activity.isFinishing() && !activity.isDestroyed()) {
dialog.show();
}
}
}
Depending on your URL scheme, you can make the UTF-8 encoded part "not important". For example, if you look at Stack Overflow URLs, they're of the following form:
http://stackoverflow.com/questions/2742852/unicode-characters-in-urls
However, the server doesn't actually care if you get the part after the identifier wrong, so this also works:
http://stackoverflow.com/questions/2742852/?????????????????
So if you had a layout like this, then you could potentially use UTF-8 in the part after the identifier and it wouldn't really matter if it got garbled. Of course this probably only works in somewhat specialised circumstances...
First, Google created the "use less secure accounts method" function:
https://myaccount.google.com/security
Then created the another permission:
https://accounts.google.com/b/0/DisplayUnlockCaptcha
Hope it helps.
$.getJSON
is an asynchronous request, meaning the code will continue to run even though the request is not yet done. You should trigger the second request when the first one is done, one of the choices you seen already in ComFreek's answer.
Alternatively you could use jQuery's $.when/.then(), similar to this:
var input = "netuetamundis"; var sID; $(document).ready(function () { $.when($.getJSON("https://prod.api.pvp.net/api/lol/eune/v1.1/summoner/by-name/" + input + "?api_key=API_KEY_HERE", function () { obj = name; sID = obj.id; console.log(sID); })).then(function () { $.getJSON("https://prod.api.pvp.net/api/lol/eune/v1.2/stats/by-summoner/" + sID + "/summary?api_key=API_KEY_HERE", function (stats) { console.log(stats); }); }); });
This would be more open for future modification and separates out the responsibility for the first call to know about the second call.
The first call can simply complete and do it's own thing not having to be aware of any other logic you may want to add, leaving the coupling of the logic separated.
Using the std::bitset answers and convenience templates:
#include <iostream>
#include <bitset>
#include <climits>
template<typename T>
struct BinaryForm {
BinaryForm(const T& v) : _bs(v) {}
const std::bitset<sizeof(T)*CHAR_BIT> _bs;
};
template<typename T>
inline std::ostream& operator<<(std::ostream& os, const BinaryForm<T> bf) {
return os << bf._bs;
}
Using it like this:
auto c = 'A';
std::cout << "c: " << c << " binary: " << BinaryForm{c} << std::endl;
unsigned x = 1234;
std::cout << "x: " << x << " binary: " << BinaryForm{x} << std::endl;
int64_t z { -1024 };
std::cout << "z: " << << " binary: " << BinaryForm{z} << std::endl;
Generates output:
c: A binary: 01000001
x: 1234 binary: 00000000000000000000010011010010
z: -1024 binary: 1111111111111111111111111111111111111111111111111111110000000000
you can use like this
SELECT Convert(varchar(10), GETDATE(),120)
I can't see why you would care. Other than the "don't use ports below 1024" privilege rule, you should be able to use any port because your clients should be configurable to talk to any IP address and port!
If they're not, then they haven't been done very well. Go back and do them properly :-)
In other words, run the server at IP address X
and port Y
then configure clients with that information. Then, if you find you must run a different server on X
that conflicts with your Y
, just re-configure your server and clients to use a new port. This is true whether your clients are code, or people typing URLs into a browser.
I, like you, wouldn't try to get numbers assigned by IANA since that's supposed to be for services so common that many, many environments will use them (think SSH or FTP or TELNET).
Your network is your network and, if you want your servers on port 1234 (or even the TELNET or FTP ports for that matter), that's your business. Case in point, in our mainframe development area, port 23 is used for the 3270 terminal server which is a vastly different beast to telnet. If you want to telnet to the UNIX side of the mainframe, you use port 1023. That's sometimes annoying if you use telnet clients without specifying port 1023 since it hooks you up to a server that knows nothing of the telnet protocol - we have to break out of the telnet client and do it properly:
telnet big_honking_mainframe_box.com 1023
If you really can't make the client side configurable, pick one in the second range, like 48042, and just use it, declaring that any other software on those boxes (including any added in the future) has to keep out of your way.
I fully agree with Mikko, but if you still want to do it, here is the way:
csrutil disable
A different approach:
The vrapper plugin emulates vim
inside the Eclipse editor. One of its features is visual block
mode which works fine inside Eclipse.
It is by default mapped to Ctrl-V
which interferes with the paste command in Eclipse. You can either remap the visual block
mode to a different shortcut, or remap the paste
command to a different key. I chose the latter: remapped the paste
command to Ctrl-Shift-V
to match my terminal's behavior.
If you're not afraid of old java-style (non type safe generic) semantics, this also works and is simple'ish:
ArgumentCaptor<List> argument = ArgumentCaptor.forClass(List.class);
verify(subject.method(argument.capture()); // run your code
List<SomeType> list = argument.getValue(); // first captured List, etc.
You need to use an undocumented trick with Excel's LINEST
function:
=LINEST(known_y's, [known_x's], [const], [stats])
A regular linear regression is calculated (with your data) as:
=LINEST(B2:B21,A2:A21)
which returns a single value, the linear slope (m
) according to the formula:
which for your data:
is:
You can also use Excel to calculate a regression with a formula that uses an exponent for x
different from 1
, e.g. x1.2:
using the formula:
=LINEST(B2:B21, A2:A21^1.2)
which for you data:
is:
Excel's LINEST
function can also calculate multiple regressions, with different exponents on x
at the same time, e.g.:
=LINEST(B2:B21,A2:A21^{1,2})
Note: if locale is set to European (decimal symbol ","), then comma should be replaced by semicolon and backslash, i.e.
=LINEST(B2:B21;A2:A21^{1\2})
Now Excel will calculate regressions using both x1 and x2 at the same time:
The impossibly tricky part there's no obvious way to see the other regression values. In order to do that you need to:
select the cell that contains your formula:
extend the selection the left 2 spaces (you need the select to be at least 3 cells wide):
press F2
press Ctrl+Shift+Enter
You will now see your 3 regression constants:
y = -0.01777539x^2 + 6.864151123x + -591.3531443
I had a function that I wanted to perform a regression using some exponent:
y = m×xk + b
But I didn't know the exponent. So I changed the LINEST
function to use a cell reference instead:
=LINEST(B2:B21,A2:A21^F3, true, true)
With Excel then outputting full stats (the 4th paramter to LINEST
):
I tell the Solver to maximize R2:
And it can figure out the best exponent. Which for you data:
is:
There are two different types of export, named and default. You can have multiple named exports per module but only one default export. Each type corresponds to one of the above. Source: MDN
Named Export
export class NamedExport1 { }
export class NamedExport2 { }
// Import class
import { NamedExport1 } from 'path-to-file'
import { NamedExport2 } from 'path-to-file'
// OR you can import all at once
import * as namedExports from 'path-to-file'
Default Export
export default class DefaultExport1 { }
// Import class
import DefaultExport1 from 'path-to-file' // No curly braces - {}
// You can use a different name for the default import
import Foo from 'path-to-file' // This will assign any default export to Foo.
//if(data="undefined"){
This is an assignment statement, not a comparison. Also, "undefined"
is a string, it's a property. Checking it is like this: if (data === undefined)
(no quotes, otherwise it's a string value)
If it's not defined, you may be returning an empty string. You could try checking for a falsy
value like if (!data)
as well
to read first line using bash, use read
statement. eg
read -r firstline<file
firstline
will be your variable (No need to assign to another)