Assume that you have a tr row with multiple checkboxes in it, and you want to count only if the first checkbox is checked.
You can do that by giving a class to the first checkbox
For example class='mycxk'
and you can count that using the filter, like this
$('.mycxk').filter(':checked').length
I got the same error.
On my view I was overriding get_form_kwargs() like this:
class UserAccountView(FormView):
form_class = UserAccountForm
success_url = '/'
template_name = 'user_account/user-account.html'
def get_form_kwargs(self):
kwargs = super(UserAccountView, self).get_form_kwargs()
kwargs.update({'user': self.request.user})
return kwargs
But on my form I failed to override the init() method. Once I did it. Problem solved
class UserAccountForm(forms.Form):
first_name = forms.CharField(label='Your first name', max_length=30)
last_name = forms.CharField(label='Your last name', max_length=30)
email = forms.EmailField(max_length=75)
def __init__(self, *args, **kwargs):
user = kwargs.pop('user')
super(UserAccountForm, self).__init__(*args, **kwargs)
Just try this. It always works.
$(document).ready(function() {_x000D_
$('#btnSun').click(function() {_x000D_
$.fn.myFunction();_x000D_
});_x000D_
$.fn.myFunction = function() {_x000D_
alert('hi');_x000D_
}_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<button id="btnSun">Say hello!</button>
_x000D_
Usually, syntax and semantics analysis of the code is done in the 'frontend' part of the compiler.
Syntax: Compiler generates tokens for each keyword and symbols: the token contains the information- type of keyword and its location in the code. Using these tokens, an AST(short for Abstract Syntax Tree) is created and analysed. What compiler actually checks here is whether the code is lexically meaningful i.e. does the 'sequence of keywords' comply with the language rules? As suggested in previous answers, you can see it as the grammar of the language(not the sense/meaning of the code). Side note: Syntax errors are reported in this phase.(returns tokens with the error type to the system)
Semantics: Now, the compiler will check whether your code operations 'makes sense'. e.g. If the language supports Type Inference, sematic error will be reported if you're trying to assign a string to a float. OR declaring the same variable twice. These are errors that are 'grammatically'/ syntaxially correct, but makes no sense during the operation. Side note: For checking whether the same variable is declared twice, compiler manages a symbol table
So, the output of these 2 frontend phases is an annotated AST(with data types) and symbol table.
Considering the normal language we use; here, English:
e.g. He go to the school. - Incorrect grammar/syntax, though he wanted to convey a correct sense/semantic.
e.g. He goes to the cold. - cold is an adjective. In English, we might say this doesn't comply with grammar, but it actually is the closest example to incorrect semantic with correct syntax I could think of.
This is what i did for merging two datatables and bind the final result to the gridview
DataTable dtTemp=new DataTable();
for (int k = 0; k < GridView2.Rows.Count; k++)
{
string roomno = GridView2.Rows[k].Cells[1].Text;
DataTable dtx = GetRoomDetails(chk, roomno, out msg);
if (dtx.Rows.Count > 0)
{
dtTemp.Merge(dtx);
dtTemp.AcceptChanges();
}
}
public static string ComputeSHA256Hash(string text)
{
using (var sha256 = new SHA256Managed())
{
return BitConverter.ToString(sha256.ComputeHash(Encoding.UTF8.GetBytes(text))).Replace("-", "");
}
}
The reason why you get different results is because you don't use the same string encoding. The link you put for the on-line web site that computes SHA256 uses UTF8 Encoding, while in your example you used Unicode Encoding. They are two different encodings, so you don't get the same result. With the example above you get the same SHA256 hash of the linked web site. You need to use the same encoding also in PHP.
The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)
The extra backslash is not actually added; it's just added by the repr()
function to indicate that it's a literal backslash. The Python interpreter uses the repr()
function (which calls __repr__()
on the object) when the result of an expression needs to be printed:
>>> '\\'
'\\'
>>> print '\\'
\
>>> print '\\'.__repr__()
'\\'
If you use the NetBeans IDE (latest version at this time is 6.5.1), you can use it to create a basic GUI java application using File->New Project and choose the Java category then Java Desktop Application.
Once created, you will have a simple bare bones GUI app which contains an about box that can be opened using a menu selection. You should be able to adapt this to your needs and learn how to open a dialog from a button click.
You will be able to edit the dialog visually. Delete the items that are there and add some text areas. Play around with it and come back with more questions if you get stuck :)
In response to the answer by Tatu I have created a quick jsFiddle for showcasing his solution:
http://jsfiddle.net/duwood/sTX7y/
HTML
<p>Paste excel data here:</p>
<textarea name="excel_data" style="width:250px;height:150px;"></textarea><br>
<input type="button" onclick="javascript:generateTable()" value="Genereate Table"/>
<br><br>
<p>Table data will appear below</p>
<hr>
<div id="excel_table"></div>
JS
function generateTable() {
var data = $('textarea[name=excel_data]').val();
console.log(data);
var rows = data.split("\n");
var table = $('<table />');
for(var y in rows) {
var cells = rows[y].split("\t");
var row = $('<tr />');
for(var x in cells) {
row.append('<td>'+cells[x]+'</td>');
}
table.append(row);
}
// Insert into DOM
$('#excel_table').html(table);
}
If you prefer to use a library, use ts-essentials.
import { Omit } from "ts-essentials";
type ComplexObject = {
simple: number;
nested: {
a: string;
array: [{ bar: number }];
};
};
type SimplifiedComplexObject = Omit<ComplexObject, "nested">;
// Result:
// {
// simple: number
// }
// if you want to Omit multiple properties just use union type:
type SimplifiedComplexObject = Omit<ComplexObject, "nested" | "simple">;
// Result:
// { } (empty type)
PS: You will find lots of other useful stuff there ;)
Try deleting the .jenkins folder from your system which is located ate the below path. C:\Users\"Your PC Name".jenkins
Now download a fresh and a stable version of .war file from official website of jenkins. For eg. 2.1 and follow the steps to install.
Django APScheduler for Scheduler Jobs. Advanced Python Scheduler (APScheduler) is a Python library that lets you schedule your Python code to be executed later, either just once or periodically. You can add new jobs or remove old ones on the fly as you please.
note: I'm the author of this library
pip install apscheduler
file name: scheduler_jobs.py
def FirstCronTest():
print("")
print("I am executed..!")
make execute.py file and add the below codes
from apscheduler.schedulers.background import BackgroundScheduler
scheduler = BackgroundScheduler()
Your written functions Here, the scheduler functions are written in scheduler_jobs
import scheduler_jobs
scheduler.add_job(scheduler_jobs.FirstCronTest, 'interval', seconds=10)
scheduler.start()
Now, add the below line in the bottom of Url file
import execute
this is my favorite hack (not sure it should work). It refer an element that is not yet displayed, and it works pretty well
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 620 40" preserveAspectRatio="xMidYMid meet">_x000D_
<defs>_x000D_
<filter x="-0.02" y="0" width="1.04" height="1.1" id="removebackground">_x000D_
<feFlood flood-color="#00ffff"/>_x000D_
</filter>_x000D_
</defs>_x000D_
_x000D_
<!--Draw the text--> _x000D_
<use xlink:href="#mygroup" filter="url(#removebackground)" />_x000D_
<g id="mygroup">_x000D_
<text id="text1" x="9" y="20" style="text-anchor:start;font-size:14px;">custom text with background</text> _x000D_
<line x1="200" y1="18" x2="200" y2="36" stroke="#000" stroke-width="5"/> _x000D_
<line x1="120" y1="27" x2="203" y2="27" stroke="#000" stroke-width="5"/> _x000D_
</g>_x000D_
</svg>
_x000D_
You can iterate through the key-value pair and write it into file
pair = {'name': name,'location': location}
with open('F:\\twitter.json', 'a') as f:
f.writelines('{}:{}'.format(k,v) for k, v in pair.items())
f.write('\n')
Thanks all. I took bits of each of your solutions and made my own.
The final working solution is:
<script type="text/javascript">
$(document).ready(function(){
$.ajax({
url: '<?php bloginfo('template_url'); ?>/functions/twitter.php',
data: "tweets=<?php echo $ct_tweets; ?>&account=<?php echo $ct_twitter; ?>",
success: function(data) {
$('#twitter-loader').remove();
$('#twitter-container').html(data);
}
});
});
</script>
As Hogan notes above, use an AND
instead of &
. See this tutorial for more info.
Simple but works like a charm.
$("#form").trigger('reset'); //jquery
document.getElementById("myform").reset(); //native JS
For me nothing from above worked. So I solved my problem with this workaround. Just check that you have added SYSTEM in directory folder. I hope it will help somoene.
import os
# create file
@staticmethod
def create_file(path):
if not os.path.exists(path):
os.system('echo # > {}'.format(path))
# append lines to the file
split_text = text_file.split('\n')
for st in split_text:
os.system('echo {} >> {}'.format(st,path))
The examples to os.walk in the documentation show how to do this:
for root, dirs, filenames in os.walk(indir):
for f in filenames:
log = open(os.path.join(root, f),'r')
How did you expect the "open" function to know that the string "1" is supposed to mean "/home/des/test/1" (unless "/home/des/test" happens to be your current working directory)?
GO isn't a keyword in SQL Server; it's a batch separator. GO ends a batch of statements. This is especially useful when you are using something like SQLCMD. Imagine you are entering in SQL statements on the command line. You don't necessarily want the thing to execute every time you end a statement, so SQL Server does nothing until you enter "GO".
Likewise, before your batch starts, you often need to have some objects visible. For example, let's say you are creating a database and then querying it. You can't write:
CREATE DATABASE foo;
USE foo;
CREATE TABLE bar;
because foo does not exist for the batch which does the CREATE TABLE. You'd need to do this:
CREATE DATABASE foo;
GO
USE foo;
CREATE TABLE bar;
Get this error in this steps:
Steps to fix:
I ended up finding MinimalistTelnet and adapted it to my uses. I ended up needing to be able to heavily modify the code due to the unique** device that I am attempting to attach to.
** Unique in this instance can be validly interpreted as brain-dead.
I still remember the first weeks of my programming courses and I totally understand how you feel. Here is the code that solves your problem. In order to learn from this answer, try to run it adding several 'print' in the loop, so you can see the progress of the variables.
import java.util.*;
import java.lang.*;
public class foo
{
public static void main(String[] args)
{
double[] alpha = new double[50];
int count = 0;
for (int i=0; i<50; i++)
{
// System.out.print("variable i = " + i + "\n");
if (i < 25)
{
alpha[i] = i*i;
}
else {
alpha[i] = 3*i;
}
if (count < 10)
{
System.out.print(alpha[i]+ " ");
}
else {
System.out.print("\n");
System.out.print(alpha[i]+ " ");
count = 0;
}
count++;
}
System.out.print("\n");
}
}
Depending on what you mean with "ASCII character" you could simply try:
xxx.+xxx
For Python 3 below eliminates overhead of list conversion:
first = next(iter(prices.values()))
Below is example you can use:
create temp table test2 (
id1 numeric,
id2 numeric,
id3 numeric,
id4 numeric,
id5 numeric,
id6 numeric,
id7 numeric,
id8 numeric,
id9 numeric,
id10 numeric)
with (oids = false);
do
$do$
declare
i int;
begin
for i in 1..100000
loop
insert into test2 values (random(), i * random(), i / random(), i + random(), i * random(), i / random(), i + random(), i * random(), i / random(), i + random());
end loop;
end;
$do$;
Just like any other simple command, [ ... ]
or test
requires spaces between its arguments.
if [ "$#" -ne 1 ]; then
echo "Illegal number of parameters"
fi
Or
if test "$#" -ne 1; then
echo "Illegal number of parameters"
fi
When in Bash, prefer using [[ ]]
instead as it doesn't do word splitting and pathname expansion to its variables that quoting may not be necessary unless it's part of an expression.
[[ $# -ne 1 ]]
It also has some other features like unquoted condition grouping, pattern matching (extended pattern matching with extglob
) and regex matching.
The following example checks if arguments are valid. It allows a single argument or two.
[[ ($# -eq 1 || ($# -eq 2 && $2 == <glob pattern>)) && $1 =~ <regex pattern> ]]
For pure arithmetic expressions, using (( ))
to some may still be better, but they are still possible in [[ ]]
with its arithmetic operators like -eq
, -ne
, -lt
, -le
, -gt
, or -ge
by placing the expression as a single string argument:
A=1
[[ 'A + 1' -eq 2 ]] && echo true ## Prints true.
That should be helpful if you would need to combine it with other features of [[ ]]
as well.
Take note that [[ ]]
and (( ))
are keywords which have same level of parsing as if
, case
, while
, and for
.
Also as Dave suggested, error messages are better sent to stderr so they don't get included when stdout is redirected:
echo "Illegal number of parameters" >&2
It's also logical to make the script exit when invalid parameters are passed to it. This has already been suggested in the comments by ekangas but someone edited this answer to have it with -1
as the returned value, so I might as well do it right.
-1
though accepted by Bash as an argument to exit
is not explicitly documented and is not right to be used as a common suggestion. 64
is also the most formal value since it's defined in sysexits.h
with #define EX_USAGE 64 /* command line usage error */
. Most tools like ls
also return 2
on invalid arguments. I also used to return 2
in my scripts but lately I no longer really cared, and simply used 1
in all errors. But let's just place 2
here since it's most common and probably not OS-specific.
if [[ $# -ne 1 ]]; then
echo "Illegal number of parameters"
exit 2
fi
Installing Android SDKs is done via the "Android SDK and AVD Manager"... there's a shortcut on Eclipse's "Window" menu, or you can run the .exe from the root of your existing Android SDK installation.
Yes I think installing the 2.3 SDK will fix your problem... you can install older SDKs at the same time. The important thing is that the structure of the SDK changed in 2.3 with some tools (such as ADB) moving from sdkroot\tools to sdkroot\platform-tools. Quite possibly the very latest ADT plugin isn't massively backwards-compatible re that change.
String ss = "Pawan kavita kiyansh Patidar Patidar";
StringBuilder ress = new StringBuilder();
Map<Character, Integer> fre = ss.chars().boxed()
.collect(Collectors.toMap(k->Character.valueOf((char) k.intValue()),k->1,Integer::sum));
//fre.forEach((k, v) -> System.out.println((k + ":" + v)));
fre.entrySet().forEach(e ->{
//System.out.println(e.getKey() + ":" + e.getValue());
//ress.append(String.valueOf(e.getKey())+e.getValue());
});
fre.forEach((k,v)->{
//System.out.println("Item : " + k + " Count : " + v);
ress.append(String.valueOf(k)+String.valueOf(v));
});
System.out.println(ress.toString());
object["property"] = value;
or
object.property = value;
Object and Array in JavaScript are different in terms of usage. Its best if you understand them:
You can only use dynamic keyword,
dynamic obj = GetAnonymousType();
Console.WriteLine(obj.Name);
Console.WriteLine(obj.LastName);
Console.WriteLine(obj.Age);
public static dynamic GetAnonymousType()
{
return new { Name = "John", LastName = "Smith", Age=42};
}
But with dynamic type keyword you will loose compile time safety, IDE IntelliSense etc...
I had two charts.
<div id="barChart"></div>
<div id="bubbleChart"></div>
This removed all charts.
d3.select("svg").remove();
This worked for removing the existing bar chart, but then I couldn't re-add the bar chart after
d3.select("#barChart").remove();
Tried this. It not only let me remove the existing bar chart, but also let me re-add a new bar chart.
d3.select("#barChart").select("svg").remove();
var svg = d3.select('#barChart')
.append('svg')
.attr('width', width + margins.left + margins.right)
.attr('height', height + margins.top + margins.bottom)
.append('g')
.attr('transform', 'translate(' + margins.left + ',' + margins.top + ')');
Not sure if this is the correct way to remove, and re-add a chart in d3. It worked in Chrome, but have not tested in IE.
Appears to be resolved by Android Studio 3.0 Canary 4 and Gradle 3.0.0-alpha4.
Note that much of the example code online regarding this problem is extremely out of date.
Paste the following into any Swift file in your project. (You can name the file anything, for example, "Handy.swift".)
Your text fields now have a .maxLength
.
It is completely OK to set that value in storyboard during development, or, set it in code while the app is running.
// simply have this in any Swift file, say, Handy.swift
import UIKit
private var __maxLengths = [UITextField: Int]()
extension UITextField {
@IBInspectable var maxLength: Int {
get {
guard let l = __maxLengths[self] else {
return 150 // (global default-limit. or just, Int.max)
}
return l
}
set {
__maxLengths[self] = newValue
addTarget(self, action: #selector(fix), for: .editingChanged)
}
}
func fix(textField: UITextField) {
let t = textField.text
textField.text = t?.prefix(maxLength).string
}
}
It's that simple.
Footnote - these days to safely truncate a String
in swift, you simply .prefix(n)
The above fixes all text fields in your project.
If you just want one particular text field to simply be limited to say "4", and that's that...
class PinCodeEntry: UITextField {
override func didMoveToSuperview() {
super.didMoveToSuperview()
addTarget(self, action: #selector(fixMe), for: .editingChanged)
}
@objc private func fixMe() { text = text?.prefix(4) }
}
Phew! That's all there is to it.
(Just BTW, here's a similar very useful tip relating to UITextView, https://stackoverflow.com/a/42333832/294884 )
As @LeoDabus reminds, .prefix
returns a substring. If you're incredibly caring, this
let t = textField.text
textField.text = t?.prefix(maxLength)
would be
if let t: String = textField.text {
textField.text = String(t.prefix(maxLength))
}
Enjoy!
GNU parallel
and xargs
These two tools that can make scripts simpler, and also control the maximum number of threads (thread pool). E.g.:
seq 10 | xargs -P4 -I'{}' echo '{}'
or:
seq 10 | parallel -j4 echo '{}'
See also: how to write a process-pool bash shell
What is the best way to implement Singleton in Java, in a multithreaded environment?
Refer to this post for best way to implement Singleton.
What is an efficient way to implement a singleton pattern in Java?
What happens when multiple threads try to access getInstance() method at the same time?
It depends on the way you have implemented the method.If you use double locking without volatile variable, you may get partially constructed Singleton object.
Refer to this question for more details:
Why is volatile used in this example of double checked locking
Can we make singleton's getInstance() synchronized?
Is synchronization really needed, when using Singleton classes?
Not required if you implement the Singleton in below ways
Refer to this question fore more details
You can't add items to an array, since it has fixed length. What you're looking for is a List<string>
, which can later be turned to an array using list.ToArray()
, e.g.
List<string> list = new List<string>();
list.Add("Hi");
String[] str = list.ToArray();
You can change the format too by doing this
string fecha = DateTime.Now.ToString(format:"dd-MM-yyyy");
// this change the "/"
for the "-"
For enums, I test them only when they actually have methods in them. If it's a pure value-only enum like your example, I'd say don't bother.
But since you're keen on testing it, going with your second option is much better than the first. The problem with the first is that if you use an IDE, any renaming on the enums would also rename the ones in your test class.
You can use DataKeys for retrieving the value of such fields, because (as you said) when you set a normal BoundField
as visible false you cannot get their value.
In the .aspx
file set the GridView
property
DataKeyNames = "Outlook_ID"
Now, in an event handler you can access the value of this key like so:
grid.DataKeys[rowIndex]["Outlook_ID"]
This will give you the id at the specified rowindex of the grid.
You can use a similar construct by using the sys.columns
table io sys.objects
.
IF NOT EXISTS (
SELECT *
FROM sys.columns
WHERE object_id = OBJECT_ID(N'[dbo].[Person]')
AND name = 'ColumnName'
)
def multiples(n,m,starting_from=1,increment_by=1):
"""
# Where n is the number 10 and m is the number 2 from your example.
# In case you want to print the multiples starting from some other number other than 1 then you could use the starting_from parameter
# In case you want to print every 2nd multiple or every 3rd multiple you could change the increment_by
"""
print [ n*x for x in range(starting_from,m+1,increment_by) ]
I was getting the same issue with a different application,
Faulting application name: javaw.exe, version: 8.0.51.16, time stamp: 0x55763d32
Faulting module name: mscorwks.dll, version: 2.0.50727.5485, time stamp: 0x53a11d6c
Exception code: 0xc0000005
Fault offset: 0x0000000000501090
Faulting process id: 0x2960
Faulting application start time: 0x01d0c39a93c695f2
Faulting application path: C:\Program Files\Java\jre1.8.0_51\bin\javaw.exe
Faulting module path:C:\Windows\Microsoft.NET\Framework64\v2.0.50727\mscorwks.dll
I was using the The Enhanced Mitigation Experience Toolkit (EMET) from Microsoft and I found by disabling the EMET features on javaw.exe in my case as this was the faulting application, it enabled my application to run successfully. Make sure you don't have any similar software with security protections on memory.
I fixed my problems with TortoiseSVN icons not showing up in Windows 10, for the special case where my repository was on a removable drive.
There is a Tortoise setting that determines which Drive Types the icons are used with: Drives A:
and B:
, Removable drives, Network drives, Fixed drives, CD-ROM, RAM drives, and Unknown drives.
It was NOT a problem with the naming of the icon overlays in the Windows Registry.
The names were automatically prefixed with "1", "2", etc.
to force them (in my computer) alphabetically at the top of the list just before the OneDrive icons.
So, all of the icons were within the top 15. To get to the Tortoise settings, right click on Desktop or a folder and then choose TortoiseSVN > Settings.
In Settings, choose Icon Overlays. There'll you find the Drive Types settings.
you can update all of the dependencies to their latest version by
npm update
The number of rows effected is returned from execute:
rows_affected=cursor.execute("SELECT ... ")
of course, as AndiDog already mentioned, you can get the row count by accessing the rowcount property of the cursor at any time to get the count for the last execute:
cursor.execute("SELECT ... ")
rows_affected=cursor.rowcount
From the inline documentation of python MySQLdb:
def execute(self, query, args=None):
"""Execute a query.
query -- string, query to execute on server
args -- optional sequence or mapping, parameters to use with query.
Note: If args is a sequence, then %s must be used as the
parameter placeholder in the query. If a mapping is used,
%(key)s must be used as the placeholder.
Returns long integer rows affected, if any
"""
There's my method to multiple upload file:
Nodejs :
router.post('/upload', function(req , res) {
var multiparty = require('multiparty');
var form = new multiparty.Form();
var fs = require('fs');
form.parse(req, function(err, fields, files) {
var imgArray = files.imatges;
for (var i = 0; i < imgArray.length; i++) {
var newPath = './public/uploads/'+fields.imgName+'/';
var singleImg = imgArray[i];
newPath+= singleImg.originalFilename;
readAndWriteFile(singleImg, newPath);
}
res.send("File uploaded to: " + newPath);
});
function readAndWriteFile(singleImg, newPath) {
fs.readFile(singleImg.path , function(err,data) {
fs.writeFile(newPath,data, function(err) {
if (err) console.log('ERRRRRR!! :'+err);
console.log('Fitxer: '+singleImg.originalFilename +' - '+ newPath);
})
})
}
})
Make sure your form has enctype="multipart/form-data"
I hope this gives you a hand ;)
A couple of things:
You need to set the video bitrate. I have never used minrate and maxrate so I don't know how exactly they work, but by setting the bitrate using the -b
switch, I am able to get high quality video. You need to come up with a bitrate that offers a good tradeoff between compression and video quality. You may have to experiment with this because it all depends on the frame size, frame rate and the amount of motion in the content of your video. Keep in mind that DVD tends to be around 4-5 Mbit/s on average for 720x480, so I usually start from there and decide whether I need more or less and then just experiment. For example, you could add -b 5000k
to the command line to get more or less DVD video bitrate.
You need to specify a video codec. If you don't, ffmpeg will default to MPEG-1 which is quite old and does not provide near the amount of compression as MPEG-4 or H.264. If your ffmpeg version is built with libx264 support, you can specify -vcodec libx264
as part of the command line. Otherwise -vcodec mpeg4
will also do a better job than MPEG-1, but not as well as x264.
There are a lot of other advanced options that will help you squeeze out the best quality at the lowest bitrates. Take a look here for some examples.
jQuery(document).ready(function(){
jQuery(".head h3").html('Public Offers');
});
Here is the Best and shortest solution that works for me as of may, 2018 for Laravel 5.5
just cut your .htaccess
file from the /public directory to the root directory and replace it content with the following code:
<IfModule mod_rewrite.c>
<IfModule mod_negotiation.c>
Options -MultiViews
</IfModule>
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [L,R=301]
RewriteCond %{REQUEST_URI} !(\.css|\.js|\.png|\.jpg|\.gif|robots\.txt)$ [NC]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ server.php [L]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !^/public/
RewriteRule ^(css|js|images)/(.*)$ public/$1/$2 [L,NC]
</IfModule>
Just save the .htaccess
file and that is all.
Rename your server.php
file to index.php
. that is all enjoy!
If you want to only download dependencies without doing anything else, then it's:
mvn dependency:resolve
Or to download a single dependency:
mvn dependency:get -Dartifact=groupId:artifactId:version
If you need to download from a specific repository, you can specify that with -DrepoUrl=...
This isn't a bad structure; it will work just fine. However, you do have to have functions in a function to do commands when someone clicks on a button or something
So what you could do is write classes for these then have methods in the class that handle commands for the button clicks and such.
Here's an example:
import tkinter as tk
class Window1:
def __init__(self, master):
pass
# Create labels, entries,buttons
def button_click(self):
pass
# If button is clicked, run this method and open window 2
class Window2:
def __init__(self, master):
#create buttons,entries,etc
def button_method(self):
#run this when button click to close window
self.master.destroy()
def main(): #run mianloop
root = tk.Tk()
app = Window1(root)
root.mainloop()
if __name__ == '__main__':
main()
Usually tk programs with multiple windows are multiple big classes and in the __init__
all the entries, labels etc are created and then each method is to handle button click events
There isn't really a right way to do it, whatever works for you and gets the job done as long as its readable and you can easily explain it because if you cant easily explain your program, there probably is a better way to do it.
Take a look at Thinking in Tkinter.
Finally found out what to do. Added the -std=c++0x compiler argument under Project Properties -> C/C++ Build -> Settings -> GCC C++ Compiler -> Miscellaneous. It works now!
But how to add this flag by default for all C++ projects? Anybody?
The issue according to me is you are trying to call a dialog right after an activity is getting finished so according me what you can do is give some delay using Handler and you issue will be solved for eg:
Handler handler=new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
dialog.show();
//or
dialog.dismiss();
}
},100);
Instead of casting the model in the RenderPartial call, and since you're using razor, you can modify the first line in your view from
@model dynamic
to
@model YourNamespace.YourModelType
This has the advantage of working on every @Html.Partial
call you have in the view, and also gives you intellisense for the properties.
You can always see the console in a different window by opening the Organiser, clicking on the Devices tab, choosing your device and selecting it's console.
Of course, this doesn't work for the simulator :(
You can use ExtendedXmlSerializer. If you have a class:
public class ConfigFile
{
public String guiPath { get; set; }
public string configPath { get; set; }
public Dictionary<string, string> mappedDrives {get;set;}
public ConfigFile()
{
mappedDrives = new Dictionary<string, string>();
}
}
and create instance of this class:
ConfigFile config = new ConfigFile();
config.guiPath = "guiPath";
config.configPath = "configPath";
config.mappedDrives.Add("Mouse", "Logitech MX Master");
config.mappedDrives.Add("keyboard", "Microsoft Natural Ergonomic Keyboard 4000");
You can serialize this object using ExtendedXmlSerializer:
ExtendedXmlSerializer serializer = new ExtendedXmlSerializer();
var xml = serializer.Serialize(config);
Output xml will look like:
<?xml version="1.0" encoding="utf-8"?>
<ConfigFile type="Program+ConfigFile">
<guiPath>guiPath</guiPath>
<configPath>configPath</configPath>
<mappedDrives>
<Item>
<Key>Mouse</Key>
<Value>Logitech MX Master</Value>
</Item>
<Item>
<Key>keyboard</Key>
<Value>Microsoft Natural Ergonomic Keyboard 4000</Value>
</Item>
</mappedDrives>
</ConfigFile>
You can install ExtendedXmlSerializer from nuget or run the following command:
Install-Package ExtendedXmlSerializer
Here is online example
If you are facing this issue in a .ts file which is only there to provide you some constant values, then you can just
rename your .ts file to .js file
and the error will not come again.
you cannot set target attribute to div, becacuse div does not know how to handle http requests. instead of you set target attribute for link tag.
$(this).find("a").target = "_blank";
window.location= $(this).find("a").attr("href")
You can define a class
or id
for input fields.
Or
input {
line-height: 20px;
}
Hope this helps you.
In the Oracle RDBMS, it is possible to use a multi-row subquery in the select clause as long as the (sub-)output is encapsulated as a collection. In particular, a multi-row select clause subquery can output each of its rows as an xmlelement that is encapsulated in an xmlforest.
All you need to do now is a simple git checkout
Just make sure to enable it via this global config: git config --global submodule.recurse true
One line fixes this:
modelBuilder.Properties<DateTime>().Configure(c => c.HasColumnType("datetime2"));
So, in my code, I added:
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Properties<DateTime>().Configure(c => c.HasColumnType("datetime2"));
}
Adding that one line to the DBContext subclass override void OnModelCreating section should work.
If you are getting this instead:
Error: Template parse errors:
There is no directive with "exportAs" set to "ngModel"
Which was reported as a bug in github, then likely it is not a bug since you might:
[(ngModel)]]=
), ORformControlName
, with the ngModel
directive. This "has been deprecated in Angular v6 and will be removed in Angular v7", since this mixes both form strategies, making it:
seem like the actual
ngModel
directive is being used, but in fact it's an input/output property namedngModel
on the reactive form directive that simply approximates (some of) its behavior. Specifically, it allows getting/setting the value and intercepting value events. However, some ofngModel
's other features - like delaying updates withngModel
Options or exporting the directive - simply don't work (...)this pattern mixes template-driven and reactive forms strategies, which we generally don't recommend because it doesn't take advantage of the full benefits of either strategy. (...)
To update your code before v7, you'll want to decide whether to stick with reactive form directives (and get/set values using reactive forms patterns) or switch over to template-driven directives.
When you have an input like this:
<input formControlName="first" [(ngModel)]="value">
It will show a warning about mixed form strategies in the browser's console:
It looks like you're using
ngModel
on the same form field asformControlName
.
However, if you add the ngModel
as a value in a reference variable, example:
<input formControlName="first" #firstIn="ngModel" [(ngModel)]="value">
The error above is then triggered and no warning about strategy mixing is shown.
This works because you have multiple classes in different jar files. Removing and re-adding the jre lib will make the right classes be first. If you want a fundamental solution make sure you exclude the jar files with the same classes.
I stylesheet may not get loaded for several reasons. But the main approach to solve such a problem is as follows:
1. After loading the page, press F12
to open the Developers Console. Check the console for any logged errors.
2. Then you should check the Stylesheet tab and see the list of stylesheets the browser loaded.
3. The URL you're using inside your HTML link
tag may be unaccessable, so manually try to visit the stylesheet with a browser and see if everything renders correctly.
4. Any typo inside your HTML or CSS stylesheet may cause the stylesheet from loading.
5. Check for any occurrences of fatal errors before your <link>
tag. A fatal error may stop the running code and suspend the page, thus not including your stylesheet.
Hope that helps.
first create database name "School" than create table "students" with following columns 1. id 2. name 3. address
now open visual studio and create connection:
namespace school { public partial class Form1 : Form { SqlConnection scon; public Form1() { InitializeComponent(); scon = new SqlConnection("Data Source = ABC-PC; trusted_connection = yes; Database = school; connection timeout = 30"); } //create command SqlCommand scom = new SqlCommand("insert into students (id,name,address) values(@id,@name,@address)", scon); //pass parameters scom.Parameters.Add("id", SqlDbType.Int); scom.Parameters["id"].Value = textBox1.Text; scom.Parameters.Add("name", SqlDbType.VarChar); scom.Parameters["name"].Value = this.textBox2.Text; scom.Parameters.Add("address", SqlDbType.VarChar); scom.Parameters["address"].Value = this.textBox6.Text; scon.Open(); scom.ExecuteNonQuery(); scon.Close(); reset(); }
also check solution here: http://solutions.musanitech.com/?p=6
Instead of doing all these, one can simply use ".Result" to get the result from a particular task.
eg: List list = GetListAsync().Result;
Which as per the definition => Gets the result value of this Task < TResult >
Technically any static variable or Property on a class, anywhere in your project, will be a Global variable e.g.
public static class MyGlobalVariables
{
public static string MyGlobalString { get; set; }
}
But as @SLaks says, they can 'potentially' be bad practice and dangerous, if not handled correctly. For instance, in that above example, you would have multiple requests (threads) trying to access the same Property, which could be an issue if it was a complex type or a collection, you would have to implement some form of locking.
If you're able to connect to the database using mysql, but you get an error for mysqldump, then the problem may be that you lack privileges to lock the table.
Try the --single-transaction option in that case.
mysqldump -h database.example.com -u mydbuser -p mydatabase --single-transaction > /home/mylinuxuser/mydatabase.sql
If one wants to split string while keeping separators by regex without capturing group:
def finditer_with_separators(regex, s):
matches = []
prev_end = 0
for match in regex.finditer(s):
match_start = match.start()
if (prev_end != 0 or match_start > 0) and match_start != prev_end:
matches.append(s[prev_end:match.start()])
matches.append(match.group())
prev_end = match.end()
if prev_end < len(s):
matches.append(s[prev_end:])
return matches
regex = re.compile(r"[\(\)]")
matches = finditer_with_separators(regex, s)
If one assumes that regex is wrapped up into capturing group:
def split_with_separators(regex, s):
matches = list(filter(None, regex.split(s)))
return matches
regex = re.compile(r"([\(\)])")
matches = split_with_separators(regex, s)
Both ways also will remove empty groups which are useless and annoying in most of the cases.
str.copy(cstr, str.length()+1); // since C++11
cstr[str.copy(cstr, str.length())] = '\0'; // before C++11
cstr[str.copy(cstr, sizeof(cstr)-1)] = '\0'; // before C++11 (safe)
It's a better practice to avoid C in C++, so std::string::copy should be the choice instead of strcpy.
you should set document title in the life cycle of 'componentWillMount':
componentWillMount() {
document.title = 'your title name'
},
The nil pointer dereference is in line 65 which is the defer in
res, err := client.Do(req)
defer res.Body.Close()
if err != nil {
return nil, err
}
If err!= nil then res==nil and res.Body panics. Handle err before defering the res.Body.Close().
@Html.Raw("@")
seems to me to be even more reliable than @@
, since not in all cases @@
will escape.
Therefore:
<meta name="twitter:site" content="@twitterSite">
would be:
<meta name="twitter:site" content="@Html.Raw("@")twitterSite">
Change the .find
to .filter
...
For the MVC4 app I am working on, I put a script element in _Layout.cshtml and created a global variable for the path required, like so:
<body>
<script>
var templatesPath = "@Url.Content("~/Templates/")";
</script>
<div class="page">
<div id="header">
<span id="title">
</span>
</div>
<div id="main">
@RenderBody()
</div>
<div id="footer">
<span></span>
</div>
</div>
Aha!
This can be done with the following PHP function:
error_log('Some message here.');
Found the answer here: Print something in PHP built-in web server
Shorter code with ES6
objArray.sort((a, b) => a.DepartmentName.toLowerCase().localeCompare(b.DepartmentName.toLowerCase()))
every minute:
* * * * * /path/to/php /var/www/html/a.php
every 24hours (every midnight):
0 0 * * * /path/to/php /var/www/html/reset.php
See this reference for how crontab works: http://adminschoice.com/crontab-quick-reference, and this handy tool to build cron jobx: http://www.htmlbasix.com/crontab.shtml
Just to add yet another reason this can show up:
$(eval VALUE)
is not valid and will produce a "missing separator" error.
$(eval IDENTIFIER=VALUE)
is acceptable. This sort of error showed up for me when I had an macro defined with define
and tried to do
define SOME_MACRO
... some expression ...
endef
VAR=$(eval $(call SOME_MACRO,arg))
where the macro did not evaluate to an assignment.
ALTER TABLE `tablename` DROP `columnname`;
Or,
ALTER TABLE `tablename` DROP COLUMN `columnname`;
Use a bytearray
:
>>> frame = bytearray()
>>> frame.append(0xA2)
>>> frame.append(0x01)
>>> frame.append(0x02)
>>> frame.append(0x03)
>>> frame.append(0x04)
>>> frame
bytearray(b'\xa2\x01\x02\x03\x04')
or, using your code but fixing the errors:
frame = b""
frame += b'\xA2'
frame += b'\x01'
frame += b'\x02'
frame += b'\x03'
frame += b'\x04'
I'm surprised that this hasn't shown up yet:
In [34]: sentence = "I really like python, it's pretty awesome.".split()
In [35]: N = 4
In [36]: grams = [sentence[i:i+N] for i in xrange(len(sentence)-N+1)]
In [37]: for gram in grams: print gram
['I', 'really', 'like', 'python,']
['really', 'like', 'python,', "it's"]
['like', 'python,', "it's", 'pretty']
['python,', "it's", 'pretty', 'awesome.']
Using CTEs you can do it this way
DECLARE @Table TABLE(
PersonID INT,
Initials VARCHAR(20),
ParentID INT
)
INSERT INTO @Table SELECT 1,'CJ',NULL
INSERT INTO @Table SELECT 2,'EB',1
INSERT INTO @Table SELECT 3,'MB',1
INSERT INTO @Table SELECT 4,'SW',2
INSERT INTO @Table SELECT 5,'YT',NULL
INSERT INTO @Table SELECT 6,'IS',5
DECLARE @PersonID INT
SELECT @PersonID = 1
;WITH Selects AS (
SELECT *
FROM @Table
WHERE PersonID = @PersonID
UNION ALL
SELECT t.*
FROM @Table t INNER JOIN
Selects s ON t.ParentID = s.PersonID
)
SELECT *
FROm Selects
Here is my code, hope this will help you !
public boolean isDigitOnly(String text){
boolean isDigit = false;
if (text.matches("[0-9]+") && text.length() > 2) {
isDigit = true;
}else {
isDigit = false;
}
return isDigit;
}
Here are two options to emulate the needed behavior. Not a general solution, but may help in some cases. The vertical spacing here is calculated on the basis of the size of the outer element, not its parent, but this size itself can be relative to the parent and this way the spacing will be relative too.
<div id="outer">
<div id="inner">
content
</div>
</div>
First option: use pseudo-elements, here vertical and horizontal spacing are relative to the outer. Demo
#outer::before, #outer::after {
display: block;
content: "";
height: 10%;
}
#inner {
height: 80%;
margin-left: 10%;
margin-right: 10%;
}
Moving the horizontal spacing to the outer element makes it relative to the parent of the outer. Demo
#outer {
padding-left: 10%;
padding-right: 10%;
}
Second option: use absolute positioning. Demo
#outer {
position: relative;
}
#inner {
position: absolute;
left: 10%;
right: 10%;
top: 10%;
bottom: 10%;
}
If you want to execute a local script remotely without saving that script remotely you can do it like this:
cat local_script.sh | ssh user@remotehost 'bash -'
It works like a charm for me.
I do that even from Windows to Linux given that you have MSYS installed on your Windows computer.
You must run git fetch
before you can compare your local repository against the files on your remote server.
This command only updates your remote tracking branches and will not affect your worktree until you call git merge
or git pull
.
To see the difference between your local branch and your remote tracking branch once you've fetched you can use git diff or git cherry as explained here.
If I understand you correctly, you need to use -SearchBase:
Get-ADUser -SearchBase "OU=Accounts,OU=RootOU,DC=ChildDomain,DC=RootDomain,DC=com" -Filter *
Note that Get-ADUser defaults to using
-SearchScope Subtree
so you don't need to specify it. It's this that gives you all sub-OUs (and sub-sub-OUs, etc.).
The fully-qualified name is opbtained as follows:
String fqn = YourClass.class.getName();
But you need to read a classpath resource. So use
InputStream in = YourClass.getResourceAsStream("resource.txt");
Yes, even we can change image of UIButton, by using flag.
class ViewController: UIViewController
{
@IBOutlet var btnImage: UIButton!
var flag = false
override func viewDidLoad()
{
super.viewDidLoad()
//setting default image for button
setButtonImage()
}
@IBAction func btnClick(_ sender: Any)
{
flag = !flag
setButtonImage()
}
func setButtonImage(){
let imgName = flag ? "share" : "image"
let image1 = UIImage(named: "\(imgName).png")!
self.btnImage.setImage(image1, for: .normal)
}
}
Here, after every click your button image will change alternatively.
set escape on
... node_name = 'Geometric Vectors \& Matrices' ...
or alternatively:
set define off
... node_name = 'Geometric Vectors & Matrices' ...
The first allows you to use the backslash to escape the &.
The second turns off & "globally" (no need to add a backslash anywhere). You can turn it on again by set define on
and from that line on the ampersands will get their special meaning back, so you can turn it off for some parts of the script and not for others.
Within the code of my app I can get the running device IP andress easily like beolow:
WifiManager wm = (WifiManager) getSystemService(WIFI_SERVICE);
String ip = Formatter.formatIpAddress(wm.getConnectionInfo().getIpAddress());
Another option compatible to 4.0:
Before committing the changes, you can recover the new CayenneDataObject
object(s) from the collection associated to the context, like this:
CayenneDataObject dataObjectsCollection = (CayenneDataObject)cayenneContext.newObjects();
then access the ObjectId
for each one in the collection, like:
ObjectId objectId = dataObject.getObjectId();
Finally you can iterate under the values, where usually the generated-id is going to be the first one of the values (for a single column key) in the Map returned by getIdSnapshot()
, it contains also the column name(s) associated to the PK as key(s):
objectId.getIdSnapshot().values()
<?php $date= date("Y-m-d");
$time=date("H:m");
$datetime=$date."T".$time;
mysql_query(INSERT INTO table (`dateposted`) VALUES ($datetime));
?>
<form action="form.php" method="get">
<input type="datetime-local" name="date" value="<?php echo $datetime; ?>">
<input type="submit" name="submit" value="submit">
alert() is a method of the window object that cannot interpret HTML tags
On Windows, saw this error on a git clone
of a (fairly large) repo. Closed SmartGit and paused my backup software (CrashPlan), and after that it worked. Not sure which of the 2 did the trick, but if running either, this might do it for you too.
During the focus event you can scroll past the document height and magically the window.innerHeight is reduced by the height of the virtual keyboard. Note that the size of the virtual keyboard is different for landscape vs. portrait orientations so you'll need to redetect it when it changes. I would advise against remembering these values as the user could connect/disconnect a bluetooth keyboard at any time.
var element = document.getElementById("element"); // the input field
var focused = false;
var virtualKeyboardHeight = function () {
var sx = document.body.scrollLeft, sy = document.body.scrollTop;
var naturalHeight = window.innerHeight;
window.scrollTo(sx, document.body.scrollHeight);
var keyboardHeight = naturalHeight - window.innerHeight;
window.scrollTo(sx, sy);
return keyboardHeight;
};
element.onfocus = function () {
focused = true;
setTimeout(function() {
element.value = "keyboardHeight = " + virtualKeyboardHeight()
}, 1); // to allow for orientation scrolling
};
window.onresize = function () {
if (focused) {
element.value = "keyboardHeight = " + virtualKeyboardHeight();
}
};
element.onblur = function () {
focused = false;
};
Note that when the user is using a bluetooth keyboard, the keyboardHeight is 44 which is the height of the [previous][next] toolbar.
There is a tiny bit of flicker when you do this detection, but it doesn't seem possible to avoid it.
var https = require('https');
https.globalAgent.options.secureProtocol = 'SSLv3_method';
LARAVEL 5
The view must contain something like:
{!! $myItems->appends(Input::except('page'))->render() !!}
Here load with progressDialog. Need to give WebClient otherwise it force to open in browser:
final ProgressDialog pDialog = new ProgressDialog(context);
pDialog.setTitle(context.getString(R.string.app_name));
pDialog.setMessage("Loading...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
WebView webView = (WebView) rootView.findViewById(R.id.web_view);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebViewClient(new WebViewClient() {
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
pDialog.show();
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
pDialog.dismiss();
}
});
String pdf = "http://www.adobe.com/devnet/acrobat/pdfs/pdf_open_parameters.pdf";
webView.loadUrl("https://drive.google.com/viewerng/viewer?embedded=true&url=" + pdf);
The print()
function returns None
. You are trying to index None. You can not, because 'NoneType' object is not subscriptable
.
Put the [0]
inside the brackets. Now you're printing everything, and not just the first term.
function Time_Function() {
var date = new Date()
var time =""
var x= "AM"
if(date.getHours() >12){
x= "PM"
}
time= date.getHours()%12 + x +":"+ date.getMinutes() +":"+ date.getSeconds()
}
$sql = "select column_name from information_schema.columns where table_name = 'myTable'";
PHP function credits : http://www.sitepoint.com/forums/php-application-design-147/get-pdo-column-name-easy-way-559336.html
function getColumnNames(){
$sql = "select column_name from information_schema.columns where table_name = 'myTable'";
#$sql = 'SHOW COLUMNS FROM ' . $this->table;
$stmt = $this->connection->prepare($sql);
try {
if($stmt->execute()){
$raw_column_data = $stmt->fetchAll(PDO::FETCH_ASSOC);
foreach($raw_column_data as $outer_key => $array){
foreach($array as $inner_key => $value){
if (!(int)$inner_key){
$this->column_names[] = $value;
}
}
}
}
return $this->column_names;
} catch (Exception $e){
return $e->getMessage(); //return exception
}
}
Sometimes the field is not recognized by crystal reports as DATE, so you can add a formula with function: Date({YourField}), And add it to the report, now when you open the format object dialog you will find the date formatting options.
One liner just set devMode true/false;
console.log = devMode ? console.log : () => { };
Gummi is the best LaTeX editor. It is a free, open source, cross-platform, program, featuring a live preview pane.
http://gummi.midnightcoding.org/
e4 http://gummi.midnightcoding.org/wp-content/uploads/20091012-1large(1).png
In your Activity
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:background="@null"
android:hint="Text Example"
android:padding="5dp"
android:singleLine="true"
android:id="@+id/name"
android:textColor="@color/magenta"/>
Let's say you have a url like this http://www.example.com/controller/action/arg1/arg2
If you want to know what are the arguments that are being passed in this url
$param_offset=0;
$params = array_slice($this->uri->rsegment_array(), $param_offset);
var_dump($params);
Output will be:
array (size=2)
0 => string 'arg1'
1 => string 'arg2'
Set your working directory one level/folder higher. For example, if it is already set as:
setwd("C:/Users/Z/Desktop/Files/RStudio/Coursera/specdata")
go up one level back and set it as:
setwd("C:/Users/Z/Desktop/Files/RStudio/Coursera")
In other words, do not make "specdata" folder as your working directory.
To directly save the file in HDFS, use the below command:
hive> insert overwrite directory '/user/cloudera/Sample' row format delimited fields terminated by '\t' stored as textfile select * from table where id >100;
This will put the contents in the folder /user/cloudera/Sample in HDFS.
Perhaps you have the compiler settings for your IDE set to Java 1.4 mode even if you are using a Java 5 JDK? Otherwise I agree with the other people who already mentioned autoboxing/unboxing.
Rob's solution is the right one--use @require
with the jQuery library and be sure to reinstall your script so the directive gets processed.
One thing I think is worth adding is that you can use jQuery normally once you have included it in your script, except for AJAX methods. By default jQuery looks for XMLHttpRequest, which doesn't exist in the Greasemonkey context. I wrote about a workaround where you create a wrapper for GM_xmlhttpRequest (the Greasemonkey version of XHR) and use jQuery's ajaxSetup()
to specify your wrapped version as the default. Once you do this, you can use $.get
and $.post
as usual.
You may also have problems with jQuery's $.getJSON
because it loads JSONP using <script>
tags. This leads to errors because jQuery defines the callback function in the scope of the Greasemonkey window, and the loaded scripts looks for the callback in the scope of the main window. Your best bet is to use $.get
instead and parse the result with JSON.parse()
.
One important thing to check that no one has mentioned so far: Check your local firewall, make sure it's turned OFF.
See my response here: https://stackoverflow.com/a/41400708/1459275
For Pycharm CE 2018.3 and Ubuntu 18.04 with snap installation:
env BAMF_DESKTOP_FILE_HINT=/var/lib/snapd/desktop/applications/pycharm-community_pycharm-community.desktop /snap/bin/pycharm-community %f
I get this command from KDE desktop launch icon.
Sorry for the language but I am a Spanish developer so I have my system in Spanish.
Number(new Date(2010, 6, 26))
Works the same way as things above. If you need seconds don't forget to / 1000
I have created a method to open facebook page into facebook app, if app is not existing then opening in chrome
String socailLink="https://www.facebook.com/kfc";
Intent intent = new Intent(Intent.ACTION_VIEW);
String facebookUrl = Utils.getFacebookUrl(getActivity(), socailLink);
if (facebookUrl == null || facebookUrl.length() == 0) {
Log.d("facebook Url", " is coming as " + facebookUrl);
return;
}
intent.setData(Uri.parse(facebookUrl));
startActivity(intent);
Utils.class add these method
public static String getFacebookUrl(FragmentActivity activity, String facebook_url) {
if (activity == null || activity.isFinishing()) return null;
PackageManager packageManager = activity.getPackageManager();
try {
int versionCode = packageManager.getPackageInfo("com.facebook.katana", 0).versionCode;
if (versionCode >= 3002850) { //newer versions of fb app
Log.d("facebook api", "new");
return "fb://facewebmodal/f?href=" + facebook_url;
} else { //older versions of fb app
Log.d("facebook api", "old");
return "fb://page/" + splitUrl(activity, facebook_url);
}
} catch (PackageManager.NameNotFoundException e) {
Log.d("facebook api", "exception");
return facebook_url; //normal web url
}
}
and this
/***
* this method used to get the facebook profile name only , this method split domain into two part index 0 contains https://www.facebook.com and index 1 contains after / part
* @param context contain context
* @param url contains facebook url like https://www.facebook.com/kfc
* @return if it successfully split then return "kfc"
*
* if exception in splitting then return "https://www.facebook.com/kfc"
*
*/
public static String splitUrl(Context context, String url) {
if (context == null) return null;
Log.d("Split string: ", url + " ");
try {
String splittedUrl[] = url.split(".com/");
Log.d("Split string: ", splittedUrl[1] + " ");
return splittedUrl.length == 2 ? splittedUrl[1] : url;
} catch (Exception ex) {
return url;
}
}
first set the path of jdk bin steps to be follow: - open computer properties. - Advanced system settings - Environment Variables look for the system variables -Click on the "path" variable - Edit copy the jdk bin path and done.
The Problem is you just open the command prompt which is default set on current user like "C:\users\ABC>" You have to change the location where your .java file store like "D:\javafiles>"
Now you are able to run the command javac filename.java
if you are using vscode, want to debug your files
I used tdd
before, it throw ReferenceError: describe is not defined
But, when I use bdd
, it works!
waste half day to solve it....
{
"type": "node",
"request": "launch",
"name": "Mocha Tests",
"program": "${workspaceFolder}/node_modules/mocha/bin/_mocha",
"args": [
"-u",
"bdd",// set to bdd, not tdd
"--timeout",
"999999",
"--colors",
"${workspaceFolder}/test/**/*.js"
],
"internalConsoleOptions": "openOnSessionStart"
},
div { background: none !important }
div { background: red; }
Is transparent.
div { background: none !important }
div { background: red !important; }
Is red.
An !important can override another !important.
If you can't edit the CSS file you can still add another one, or a style tag in the head tag.
What I ended up doing was creating 2 xibs. One with the left view and one without it. I registered both in the controller and then decided which to use during cellForRowAtIndexPath.
They use the same UITableViewCell class. The downside is that there is some duplication of the content between the xibs, but these cells are pretty basic. The upside is that I don't have a bunch of code to manually manage removing view, updating constraints, etc.
In general, this is probably a better solution since they are technically different layouts and therefore should have different xibs.
[self.table registerNib:[UINib nibWithNibName:@"TrackCell" bundle:nil] forCellReuseIdentifier:@"TrackCell"];
[self.table registerNib:[UINib nibWithNibName:@"TrackCellNoImage" bundle:nil] forCellReuseIdentifier:@"TrackCellNoImage"];
TrackCell *cell = [tableView dequeueReusableCellWithIdentifier:(appDelegate.showImages ? @"TrackCell" : @"TrackCellNoImage") forIndexPath:indexPath];
Well one of the option is to goto your workspace, your project folder, then bin copy and paste the log4j properites file. it would be better to paste the file also in source folder.
Now you may want to know from where to get this file, download smslib, then extract it, then smslib->misc->log4j sample configuration -> log4j here you go.
This what helped,me so just wanted to know.
Although @serge answer is correct but i compared time consumption of his way against xmlpath and i found the xmlpath is so faster. I'll write the compare code and you can check it by yourself. This is @serge way:
DECLARE @startTime datetime2;
DECLARE @endTime datetime2;
DECLARE @counter INT;
SET @counter = 1;
set nocount on;
declare @YourTable table (ID int, Name nvarchar(50))
WHILE @counter < 1000
BEGIN
insert into @YourTable VALUES (ROUND(@counter/10,0), CONVERT(NVARCHAR(50), @counter) + 'CC')
SET @counter = @counter + 1;
END
SET @startTime = GETDATE()
;WITH Partitioned AS
(
SELECT
ID,
Name,
ROW_NUMBER() OVER (PARTITION BY ID ORDER BY Name) AS NameNumber,
COUNT(*) OVER (PARTITION BY ID) AS NameCount
FROM @YourTable
),
Concatenated AS
(
SELECT ID, CAST(Name AS nvarchar) AS FullName, Name, NameNumber, NameCount FROM Partitioned WHERE NameNumber = 1
UNION ALL
SELECT
P.ID, CAST(C.FullName + ', ' + P.Name AS nvarchar), P.Name, P.NameNumber, P.NameCount
FROM Partitioned AS P
INNER JOIN Concatenated AS C ON P.ID = C.ID AND P.NameNumber = C.NameNumber + 1
)
SELECT
ID,
FullName
FROM Concatenated
WHERE NameNumber = NameCount
SET @endTime = GETDATE();
SELECT DATEDIFF(millisecond,@startTime, @endTime)
--Take about 54 milliseconds
And this is xmlpath way:
DECLARE @startTime datetime2;
DECLARE @endTime datetime2;
DECLARE @counter INT;
SET @counter = 1;
set nocount on;
declare @YourTable table (RowID int, HeaderValue int, ChildValue varchar(5))
WHILE @counter < 1000
BEGIN
insert into @YourTable VALUES (@counter, ROUND(@counter/10,0), CONVERT(NVARCHAR(50), @counter) + 'CC')
SET @counter = @counter + 1;
END
SET @startTime = GETDATE();
set nocount off
SELECT
t1.HeaderValue
,STUFF(
(SELECT
', ' + t2.ChildValue
FROM @YourTable t2
WHERE t1.HeaderValue=t2.HeaderValue
ORDER BY t2.ChildValue
FOR XML PATH(''), TYPE
).value('.','varchar(max)')
,1,2, ''
) AS ChildValues
FROM @YourTable t1
GROUP BY t1.HeaderValue
SET @endTime = GETDATE();
SELECT DATEDIFF(millisecond,@startTime, @endTime)
--Take about 4 milliseconds
$scope.rtGo = function(){
$window.sessionStorage.removeItem('message');
$window.sessionStorage.removeItem('status');
}
The answer provided by the OP is not the best. It is inefficient, as it creates a new List
and an unnecessary new array. Also, it raises "unchecked" warnings because of the type safety issues around generic arrays.
Instead, use something like this:
public static
<T extends Comparable<? super T>> List<T> asSortedList(Collection<T> c) {
List<T> list = new ArrayList<T>(c);
java.util.Collections.sort(list);
return list;
}
Here's a usage example:
Map<Integer, String> map = new HashMap<Integer, String>();
/* Add entries to the map. */
...
/* Now get a sorted list of the *values* in the map. */
Collection<String> unsorted = map.values();
List<String> sorted = Util.asSortedList(unsorted);
Bash, since version 4.3, feb 2014(?), has explicit support for reference variables or name references (namerefs), beyond "eval", with the same beneficial performance and indirection effect, and which may be clearer in your scripts and also harder to "forget to 'eval' and have to fix this error":
declare [-aAfFgilnrtux] [-p] [name[=value] ...]
typeset [-aAfFgilnrtux] [-p] [name[=value] ...]
Declare variables and/or give them attributes
...
-n Give each name the nameref attribute, making it a name reference
to another variable. That other variable is defined by the value
of name. All references and assignments to name, except for·
changing the -n attribute itself, are performed on the variable
referenced by name's value. The -n attribute cannot be applied to
array variables.
...
When used in a function, declare and typeset make each name local,
as with the local command, unless the -g option is supplied...
and also:
PARAMETERS
A variable can be assigned the nameref attribute using the -n option to the declare or local builtin commands (see the descriptions of declare and local below) to create a nameref, or a reference to another variable. This allows variables to be manipulated indirectly. Whenever the nameref variable is· referenced or assigned to, the operation is actually performed on the variable specified by the nameref variable's value. A nameref is commonly used within shell functions to refer to a variable whose name is passed as an argument to· the function. For instance, if a variable name is passed to a shell function as its first argument, running
declare -n ref=$1
inside the function creates a nameref variable ref whose value is the variable name passed as the first argument. References and assignments to ref are treated as references and assignments to the variable whose name was passed as· $1. If the control variable in a for loop has the nameref attribute, the list of words can be a list of shell variables, and a name reference will be· established for each word in the list, in turn, when the loop is executed. Array variables cannot be given the -n attribute. However, nameref variables can reference array variables and subscripted array variables. Namerefs can be· unset using the -n option to the unset builtin. Otherwise, if unset is executed with the name of a nameref variable as an argument, the variable referenced by· the nameref variable will be unset.
For example (EDIT 2: (thank you Ron) namespaced (prefixed) the function-internal variable name, to minimize external variable clashes, which should finally answer properly, the issue raised in the comments by Karsten):
# $1 : string; your variable to contain the return value
function return_a_string () {
declare -n ret=$1
local MYLIB_return_a_string_message="The date is "
MYLIB_return_a_string_message+=$(date)
ret=$MYLIB_return_a_string_message
}
and testing this example:
$ return_a_string result; echo $result
The date is 20160817
Note that the bash "declare" builtin, when used in a function, makes the declared variable "local" by default, and "-n" can also be used with "local".
I prefer to distinguish "important declare" variables from "boring local" variables, so using "declare" and "local" in this way acts as documentation.
EDIT 1 - (Response to comment below by Karsten) - I cannot add comments below any more, but Karsten's comment got me thinking, so I did the following test which WORKS FINE, AFAICT - Karsten if you read this, please provide an exact set of test steps from the command line, showing the problem you assume exists, because these following steps work just fine:
$ return_a_string ret; echo $ret
The date is 20170104
(I ran this just now, after pasting the above function into a bash term - as you can see, the result works just fine.)
I agree that StringTokenizer is overkill here. Actually I tried out the suggestions above and took the time.
My test was fairly simple: create a StringBuilder with about a million characters, convert it to a String, and traverse each of them with charAt() / after converting to a char array / with a CharacterIterator a thousand times (of course making sure to do something on the string so the compiler can't optimize away the whole loop :-) ).
The result on my 2.6 GHz Powerbook (that's a mac :-) ) and JDK 1.5:
As the results are significantly different, the most straightforward way also seems to be the fastest one. Interestingly, charAt() of a StringBuilder seems to be slightly slower than the one of String.
BTW I suggest not to use CharacterIterator as I consider its abuse of the '\uFFFF' character as "end of iteration" a really awful hack. In big projects there's always two guys that use the same kind of hack for two different purposes and the code crashes really mysteriously.
Here's one of the tests:
int count = 1000;
...
System.out.println("Test 1: charAt + String");
long t = System.currentTimeMillis();
int sum=0;
for (int i=0; i<count; i++) {
int len = str.length();
for (int j=0; j<len; j++) {
if (str.charAt(j) == 'b')
sum = sum + 1;
}
}
t = System.currentTimeMillis()-t;
System.out.println("result: "+ sum + " after " + t + "msec");
How about this?
fmt.Printf("%c","HELLO"[1])
As Peter points out, to allow for more than just ASCII:
fmt.Printf("%c", []rune("HELLO")[1])
I guess you're searching for this custom function. It takes a data-toggle attribute and creates dynamically the necessary div to place the remote content. Just place the data-toggle="ajaxModal" on any link you want to load via AJAX.
The JS part:
$('[data-toggle="ajaxModal"]').on('click',
function(e) {
$('#ajaxModal').remove();
e.preventDefault();
var $this = $(this)
, $remote = $this.data('remote') || $this.attr('href')
, $modal = $('<div class="modal" id="ajaxModal"><div class="modal-body"></div></div>');
$('body').append($modal);
$modal.modal({backdrop: 'static', keyboard: false});
$modal.load($remote);
}
);
Finally, in the remote content, you need to put the entire structure to work.
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title"></h4>
</div>
<div class="modal-body">
</div>
<div class="modal-footer">
<a href="#" class="btn btn-white" data-dismiss="modal">Close</a>
<a href="#" class="btn btn-primary">Button</a>
<a href="#" class="btn btn-primary">Another button...</a>
</div>
</div><!-- /.modal-content -->
</div><!-- /.modal-dialog -->
Simple code for replace all spaces
var str = 'How are you';
var replaced = str.split(' ').join('');
Out put: Howareyou
'Fraid so. I'd make an HTML page with a stylesheet, then use jQuery to apply the stylesheet to the style attr of each element. Something like this:
var styleAttributes = ['color','font-size']; // all the attributes you've applied in your stylesheet
for (i in styleAttributes) {
$('body *').css(styleAttributes[i],function () {
$(this).css(styleAttributes[i]);
});
}
Then copy the DOM and use that in the email.
I solved the error by modifying the following property in hibernate.cfg.xml
<property name="hibernate.hbm2ddl.auto">validate</property>
Earlier, the table was getting deleted each time I ran the program and now it doesnt, as hibernate only validates the schema and does not affect changes to it.
PreparedStatement stmt = getConnection(PROJECTDB + 2)
.prepareStatement("INSERT INTO fonts (font_size) VALUES(?) RETURNING fonts.*");
stmt.setString(1, "986");
ResultSet res = stmt.executeQuery();
while (res.next()) {
System.out.println("Generated key: " + res.getLong(1));
System.out.println("Generated key: " + res.getInt(2));
System.out.println("Generated key: " + res.getInt(3));
}
stmt.close();
Here is a query that returns only the rows where no correspondance has been found in both columns user_one
and user_two
of table2
:
SELECT T1.*
FROM table1 T1
LEFT OUTER JOIN table2 T2A ON T2A.user_one = T1.id
LEFT OUTER JOIN table2 T2B ON T2B.user_two = T1.id
WHERE T2A.user_one IS NULL
AND T2B.user_two IS NULL
There is one jointure for each column (user_one
and user_two
) and the query only returns rows that have no matching jointure.
Hope this will help you.
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self
action:@selector(aMethod:)
forControlEvents:UIControlEventTouchUpInside];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(10.0, 100.0, 300.0, 20.0);
[self.view addSubview:button];
you can try like this...you can use Array.IndexOf() , if you want to know the position also
string [] arr = {"One","Two","Three"};
var target = "One";
var results = Array.FindAll(arr, s => s.Equals(target));
View
<input type="text" name="name"/>
<input type="text" name="class"/>
Controller
function __construct()
{
parent:: __construct();
$this->load->Model('Model');
}
function index()
{
$this->load->view('view');
}
function user(){
if (isset($_POST['submit'])){
$data = array('name'=>$_POST['name'],
'class'=>$_POST['class']);
$this->Model->insert($data);
}
}
Model
function insert($data)
{
$this->db->insert('table_name',$data);
return true;
}
If you aren't comfortable with using negative margins, check this out.
div {
position: fixed;
left: 50%;
bottom: 20px;
transform: translate(-50%, -50%);
margin: 0 auto;
}
<div>
Your Text
</div>
Especially useful when you don't know the width of the div.
align="center"
has no effect.
Since you have position:absolute
, I would recommend positioning it 50% from the left and then subtracting half of its width from its left margin.
#manipulate {
position:absolute;
width:300px;
height:300px;
background:#063;
bottom:0px;
right:25%;
left:50%;
margin-left:-150px;
}
For my version of phpmyadmin (4.6.6deb5), I found line 613, and realized the count() parentheses were not closed properly. To fix this temporarily until the next release, just change:
|| (count($analyzed_sql_results['select_expr'] == 1)
to:
|| (count($analyzed_sql_results['select_expr']) == 1
You can use a StringReader
to read a line at a time:
using (StringReader reader = new StringReader(input))
{
string line = string.Empty;
do
{
line = reader.ReadLine();
if (line != null)
{
// do something with the line
}
} while (line != null);
}
If not HTML
, then UTF-8
is not recommended. koi8-r
and windows-1251
only without problems. So use html mail.
$headers['Content-Type']='text/html; charset=UTF-8';
$body='<html><head><meta charset="UTF-8"><title>ESP Notufy - ESP ?????????</title></head><body>'.$text.'</body></html>';
$mail_object=& Mail::factory('smtp',
array ('host' => $host,
'auth' => true,
'username' => $username,
'password' => $password));
$mail_object->send($recipents, $headers, $body);
}
You should really be using checkboxes if there will be an instance where something isn't selected.
according to the W3C
If no radio button in a set sharing the same control name is initially "on", user agent behavior for choosing which control is initially "on" is undefined. Note. Since existing implementations handle this case differently, the current specification differs from RFC 1866 ([RFC1866] section 8.1.2.4), which states:
At all times, exactly one of the radio buttons in a set is checked. If none of the elements of a set of radio buttons specifies `CHECKED', then the user agent must check the first radio button of the set initially.
Since user agent behavior differs, authors should ensure that in each set of radio buttons that one is initially "on".
Use \n
for a line break and \t
if you want to insert a tab.
You can also use some XML tags for basic formatting: <b>
for bold text, <i>
for italics, and <u>
for underlined text.
Other formatting options are shown in this article on the Android Developers' site:
https://developer.android.com/guide/topics/resources/string-resource.html#FormattingAndStyling
I don't know what happened, but the following did the work (under mac os catalina)
$ brew install pipenv
$ brew update pipenv
after doing this i am able to use
$ pipenv install [package_name]
The extensions methods also provide a ToDictionary extension. It is fairly simple to use, the general usage is passing a lambda selector for the key and getting the object as the value, but you can pass a lambda selector for both key and value.
class SomeObject
{
public int ID { get; set; }
public string Name { get; set; }
}
SomeObject[] objects = new SomeObject[]
{
new SomeObject { ID = 1, Name = "Hello" },
new SomeObject { ID = 2, Name = "World" }
};
Dictionary<int, string> objectDictionary = objects.ToDictionary(o => o.ID, o => o.Name);
Then objectDictionary[1]
Would contain the value "Hello"
You can usee the following code:
week_start = str(datetime.today() - timedelta(days=datetime.today().weekday() % 7)).split(' ')[0]
This is another option, using jQuery and getting only tbody
rows (with the data) and desconsidering thead/tfoot
.
$("#tableId > tbody > tr").length
console.log($("#myTableId > tbody > tr").length);
_x000D_
.demo {
width:100%;
height:100%;
border:1px solid #C0C0C0;
border-collapse:collapse;
border-spacing:2px;
padding:5px;
}
.demo caption {
caption-side:top;
text-align:center;
}
.demo th {
border:1px solid #C0C0C0;
padding:5px;
background:#F0F0F0;
}
.demo td {
border:1px solid #C0C0C0;
text-align:left;
padding:5px;
background:#FFFFFF;
}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table id="myTableId" class="demo">
<caption>Table 1</caption>
<thead>
<tr>
<th>Header 1</th>
<th>Header 2</th>
<th>Header 3</th>
<th>Header 4</th>
</tr>
</thead>
<tbody>
<tr>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
</tbody>
<tfoot>
<tr>
<td colspan=4 style="background:#F0F0F0"> </td>
</tr>
</tfoot>
</table>
_x000D_
The best way to find out the REAL type of an object (including BOTH the native Object or DataType name (such as String, Date, Number, ..etc) AND the REAL type of an object (even custom ones); is by grabbing the name property of the object prototype's constructor:
Native Type Ex1:
var string1 = "Test";
console.log(string1.__proto__.constructor.name);
displays:
String
Ex2:
var array1 = [];
console.log(array1.__proto__.constructor.name);
displays:
Array
Custom Classes:
function CustomClass(){_x000D_
console.log("Custom Class Object Created!");_x000D_
}_x000D_
var custom1 = new CustomClass();_x000D_
_x000D_
console.log(custom1.__proto__.constructor.name);
_x000D_
displays:
CustomClass
This is an old topic, but in case anyone else is still looking...
I was having trouble after an undock event. An open db connection saved in a global object would error, even after reconnecting to the network. This was due to the TCP connection being forcibly terminated by remote host. (Error -2147467259: TCP Provider: An existing connection was forcibly closed by the remote host.)
However, the error would only show up after the first transaction was attempted. Up to that point, neither Connection.State nor Connection.Version (per solutions above) would reveal any error.
So I wrote the small sub below to force the error - hope it's useful.
Performance testing on my setup (Access 2016, SQL Svr 2008R2) was approx 0.5ms per call.
Function adoIsConnected(adoCn As ADODB.Connection) As Boolean
'----------------------------------------------------------------
'#PURPOSE: Checks whether the supplied db connection is alive and
' hasn't had it's TCP connection forcibly closed by remote
' host, for example, as happens during an undock event
'#RETURNS: True if the supplied db is connected and error-free,
' False otherwise
'#AUTHOR: Belladonna
'----------------------------------------------------------------
Dim i As Long
Dim cmd As New ADODB.Command
'Set up SQL command to return 1
cmd.CommandText = "SELECT 1"
cmd.ActiveConnection = adoCn
'Run a simple query, to test the connection
On Error Resume Next
i = cmd.Execute.Fields(0)
On Error GoTo 0
'Tidy up
Set cmd = Nothing
'If i is 1, connection is open
If i = 1 Then
adoIsConnected = True
Else
adoIsConnected = False
End If
End Function
const extend = function*(ls,xs){
yield* ls;
yield* xs;
}
console.log( [...extend([1,2,3],[4,5,6])] );
Adding this late answer to check for object.propertie that can help in some cases:
Using a juggling-check, you can test both null and undefined in one hit:
if (object.property == null) {
If you use a strict-check, it will only be true for values set to null and won't evaluate as true for undefined variables:
if (object.property === null) {
Typescript does NOT have a function to check if a variable is defined.
Update October 2020
You can now also use the nullish coallesing operator introduced in Typescript.
let neverNullOrUndefined = someValue ?? anotherValue;
Here, anotherValue
will only be returned if someValue
is null or undefined.
May want to look at Kiran Chand's Blog post, he uses custom metadata on the view model such as:
[HtmlProperties(Size = 5, MaxLength = 10)]
public string Title { get; set; }
This is combined with custom templates that make use of the metadata. A clean and simple approach in my opinion but I would like to see this common use case built-in to mvc.
I converted the VB code in the blog post linked by xsl to C# and modified it a bit:
public static bool TryGetRegisteredApplication(
string extension, out string registeredApp)
{
string extensionId = GetClassesRootKeyDefaultValue(extension);
if (extensionId == null)
{
registeredApp = null;
return false;
}
string openCommand = GetClassesRootKeyDefaultValue(
Path.Combine(new[] {extensionId, "shell", "open", "command"}));
if (openCommand == null)
{
registeredApp = null;
return false;
}
registeredApp = openCommand
.Replace("%1", string.Empty)
.Replace("\"", string.Empty)
.Trim();
return true;
}
private static string GetClassesRootKeyDefaultValue(string keyPath)
{
using (var key = Registry.ClassesRoot.OpenSubKey(keyPath))
{
if (key == null)
{
return null;
}
var defaultValue = key.GetValue(null);
if (defaultValue == null)
{
return null;
}
return defaultValue.ToString();
}
}
EDIT - this is unreliable. See Finding the default application for opening a particular file type on Windows.
I also faced this problem . You can try any of these steps :
ps -A
)how to club the 4 query's as a single query
show below query
nsc = nature of case
report is taken on 06th of every month
( monthly report will be counted from 05th previous month to 05th present of present month)
I was able to find a solution/workaround of redirecting output to a file and then to the console:
dir > a.txt | type a.txt
where dir is the command which output needs to be redirected, a.txt a file where to store output.
You can set the variable 'fileencodings' in your .vimrc.
This is a list of character encodings considered when starting to edit an existing file. When a file is read, Vim tries to use the first mentioned character encoding. If an error is detected, the next one in the list is tried. When an encoding is found that works, 'fileencoding' is set to it. If all fail, 'fileencoding' is set to an empty string, which means the value of 'encoding' is used.
See :help filencodings
If you often work with e.g. cp1252, you can add it there:
set fileencodings=ucs-bom,utf-8,cp1252,default,latin9
The answer is to use a JSONArray as well, and to dive "deep" into the tree structure:
JSONArray arr = new JSONArray();
arr.put (...); // a new JSONObject()
arr.put (...); // a new JSONObject()
JSONObject json = new JSONObject();
json.put ("aoColumnDefs",arr);
Just adding another idea you could use a child selector to get immediate children
document.querySelectorAll(".parent > .child1");
should return all the immediate children with class .child1
From the PostgreSQL wiki.
NOTE: Databases to which the user cannot connect are sorted as if they were infinite size.
SELECT d.datname AS Name, pg_catalog.pg_get_userbyid(d.datdba) AS Owner,
CASE WHEN pg_catalog.has_database_privilege(d.datname, 'CONNECT')
THEN pg_catalog.pg_size_pretty(pg_catalog.pg_database_size(d.datname))
ELSE 'No Access'
END AS Size
FROM pg_catalog.pg_database d
ORDER BY
CASE WHEN pg_catalog.has_database_privilege(d.datname, 'CONNECT')
THEN pg_catalog.pg_database_size(d.datname)
ELSE NULL
END DESC -- nulls first
LIMIT 20
The page also has snippets for finding the size of your biggest relations and largest tables.
Following Works for me and its good from readability point of view when array element values are small:
key: [string1, string2, string3, string4, string5, string6]
Note:snakeyaml implementation used
You have to append it. Create the element with:
var $div = $("<div>my div</div>");
$div.click(function(){alert("clicked")})
return $div;
Then if you append it will work.
Unfortunately there is no good solution for this.
I've seen the many articles about using a custom TextView but what they forget it that it's not only textviews that can implement fonts & there are textviews hidden away in other views inaccessible to the developer; I'm not even going to get started on Spannable.
You could use an external font utility like:
BUT This loops over every view in the application on it's creation and even this utility misses some views (ViewPager renders normal font) then you have the problem that is when Google updates their build tools this will occasionally crash because it needs to target deprecated properties. It's also a little slow as it uses Java's Reflection.
It's really up to Google to fix this. We need better font support in Android. If you look at the solution from iOS they literally have 100's of fonts built in to select from. Want a custom font? Simply drop a TFF in and it's usable..
For now were now limited to the offering that Google offers us which is extremely limited but fortunately mobile optimized.
It can be done using inner query Like this
$query = "SELECT *
FROM (SELECT Category
FROM currency_rates
ORDER BY id DESC) as rows
GROUP BY currency";
You should never use a break statement to exit a loop. Of course you can do it, but that doesn't mean you should. It just isn't good programming practice. The more elegant way to exit is the following:
while(choice!=99)
{
cin>>choice;
if (choice==99)
//exit here and don't get additional input
else
cin>>gNum;
}
if choice is 99 there is nothing else to do and the loop terminates.
The above answers require you to malloc a new stream object.
public <T>
boolean containsByLambda(Collection<? extends T> c, Predicate<? super T> p) {
for (final T z : c) {
if (p.test(z)) {
return true;
}
}
return false;
}
public boolean containsTabById(TabPane tabPane, String id) {
return containsByLambda(tabPane.getTabs(), z -> z.getId().equals(id));
}
...
if (containsTabById(tabPane, idToCheck))) {
...
}
Modules Preconditions:
The IIS core engine uses preconditions to determine when to enable a particular module. Performance reasons, for example, might determine that you only want to execute managed modules for requests that also go to a managed handler. The precondition in the following example (
precondition="managedHandler"
) only enables the forms authentication module for requests that are also handled by a managed handler, such as requests to .aspx or .asmx files:<add name="FormsAuthentication" type="System.Web.Security.FormsAuthenticationModule" preCondition="managedHandler" />
If you remove the attribute
precondition="managedHandler"
, Forms Authentication also applies to content that is not served by managed handlers, such as .html, .jpg, .doc, but also for classic ASP (.asp) or PHP (.php) extensions. See "How to Take Advantage of IIS Integrated Pipeline" for an example of enabling ASP.NET modules to run for all content.You can also use a shortcut to enable all managed (ASP.NET) modules to run for all requests in your application, regardless of the "
managedHandler
" precondition.To enable all managed modules to run for all requests without configuring each module entry to remove the "
managedHandler
" precondition, use therunAllManagedModulesForAllRequests
property in the<modules>
section:<modules runAllManagedModulesForAllRequests="true" />
When you use this property, the "
managedHandler
" precondition has no effect and all managed modules run for all requests.
Copied from IIS Modules Overview: Preconditions
From the MSDN website:
This error frequently occurs if you declare a variable in a loop or a try or if block and then attempt to access it from an enclosing code block or a separate code block.
So declare the variable outside the block.
Thanks to unutbu for the explanation. By default numpy.cov calculates the sample covariance. To obtain the population covariance you can specify normalisation by the total N samples like this:
Covariance = numpy.cov(a, b, bias=True)[0][1]
print(Covariance)
or like this:
Covariance = numpy.cov(a, b, ddof=0)[0][1]
print(Covariance)
export const universalBtoa = str => {
try {
return btoa(str);
} catch (err) {
return Buffer.from(str).toString('base64');
}
};
export const universalAtob = b64Encoded => {
try {
return atob(b64Encoded);
} catch (err) {
return Buffer.from(b64Encoded, 'base64').toString();
}
};
In Swing its fairly common to write a class that implements ActionListener
and add the current instance (ie 'this') as an ActionListener for components.
public class MyDialog extends JDialog implements ActionListener
{
public MyDialog()
{
JButton myButton = new JButton("Hello");
myButton.addActionListener(this);
}
public void actionPerformed(ActionEvent evt)
{
System.out.println("Hurdy Gurdy!");
}
}
put public, protected or private before the $connection.
Decorators
Decorators allow to wrap a function or method in another function that can add functionality, modify arguments or results, etc. You write decorators one line above the function definition, beginning with an "at" sign (@).
Example shows a print_args
decorator that prints the decorated function's arguments before calling it:
>>> def print_args(function):
>>> def wrapper(*args, **kwargs):
>>> print 'Arguments:', args, kwargs
>>> return function(*args, **kwargs)
>>> return wrapper
>>> @print_args
>>> def write(text):
>>> print text
>>> write('foo')
Arguments: ('foo',) {}
foo
If you are using 11G XE with Windows, along with tns listener restart, make sure Windows Event Log service is started.
Here's an approach:
HTML:
<div id="1">
My Content 1
</div>
<div id="2" style="display:none;">
My Dynamic Content
</div>
<button id="btnClick">Click me!</button>
jQuery:
$('#btnClick').on('click',function(){
if($('#1').css('display')!='none'){
$('#2').html('Here is my dynamic content').show().siblings('div').hide();
}else if($('#2').css('display')!='none'){
$('#1').show().siblings('div').hide();
}
});
JsFiddle:
http://jsfiddle.net/ha6qp7w4/
http://jsfiddle.net/ha6qp7w4/4 <--- Commented
// define
var foo = {
bar: ['foo', 'bar', 'baz']
};
// access
foo.bar[2]; // will give you 'baz'
You are getting Floating point exception because Number % i
, when i
is 0
:
int Is_Prime( int Number ){
int i ;
for( i = 0 ; i < Number / 2 ; i++ ){
if( Number % i != 0 ) return -1 ;
}
return Number ;
}
Just start the loop at i = 2
. Since i = 1
in Number % i
it always be equal to zero, since Number is a int.
Make use of case-insensitve matching using stripos()
:
if (stripos($string,$stringToSearch) !== false) {
echo 'true';
}
Just put the commands you want to run into a file, then pass it to the shell along with the database name and redirect the output to a file. So, if your find command is in find.js
and your database is foo
, it would look like this:
./mongo foo find.js >> out.json
You could use FindBin, Cwd, File::Basename, or a combination of them. They're all in the base distribution of Perl IIRC.
I used Cwd in the past:
Cwd:
use Cwd qw(abs_path);
my $path = abs_path($0);
print "$path\n";
2020 Sep
launch xamp control panel
press admin in mysql row
in opened phpmyadmin press house icon on top left corner
in the top middle you will see user accounts tab and tap it
see in 'new' panel under the table to add a new user for your dbs and set access permissions
I personally use import because, we can import the required methods, members by using import.
import {foo, bar} from "dep";
FileName: dep.js
export foo function(){};
export const bar = 22
Credit goes to Paul Shan. More info.
Try this one, I assure you that it will work perfectly.
import scipy.optimize as opt
from numpy import exp
import timeit
st1 = timeit.default_timer()
def f(variables) :
(x,y) = variables
first_eq = x + y**2 -4
second_eq = exp(x) + x*y - 3
return [first_eq, second_eq]
solution = opt.fsolve(f, (0.1,1) )
print(solution)
st2 = timeit.default_timer()
print("RUN TIME : {0}".format(st2-st1))
->
[ 0.62034452 1.83838393]
RUN TIME : 0.0009331008900937708
FYI. as mentioned above, you can also use 'Broyden's approximation' by replacing 'fsolve' with 'broyden1'. It works. I did it.
I don't know exactly how Broyden's approximation works, but it took 0.02 s.
And I recommend you do not use Sympy's functions <- convenient indeed, but in terms of speed, it's quite slow. You will see.
I'm using a old version of Hibernate (3.3.0) with a newest version of OpenEJB (4.6.0). My solution was:
EntityManagerImpl entityManager = (EntityManagerImpl)em.getDelegate();
Session session = entityManager.getSession();
Connection connection = session.connection();
Statement statement = null;
try {
statement = connection.createStatement();
statement.execute(sql);
connection.commit();
} catch (SQLException e) {
throw new RuntimeException(e);
}
I had an error after that:
Commit can not be set while enrolled in a transaction
Because this code above was inside a EJB Controller (you can't commit
inside a transaction). I annotated the method with @TransactionAttribute(value = TransactionAttributeType.NOT_SUPPORTED)
and the problem was gone.
Front :
<Image Name="camImage"/>
Back:
public async void Base64ToImage(string base64String)
{
// read stream
var bytes = Convert.FromBase64String(base64String);
var image = bytes.AsBuffer().AsStream().AsRandomAccessStream();
// decode image
var decoder = await BitmapDecoder.CreateAsync(image);
image.Seek(0);
// create bitmap
var output = new WriteableBitmap((int)decoder.PixelHeight, (int)decoder.PixelWidth);
await output.SetSourceAsync(image);
camImage.Source = output;
}
Let's say you wrote some code like this:
Mod1.ts
export namespace A {
export class Twix { ... }
}
Mod2.ts
export namespace A {
export class PeanutButterCup { ... }
}
Mod3.ts
export namespace A {
export class KitKat { ... }
}
Each module (sheet of paper) gets its own cup named A
. This is useless - you're not actually organizing your candy here, you're just adding an additional step (taking it out of the cup) between you and the treats.
If you weren't using modules, you might write code like this (note the lack of export
declarations):
global1.ts
namespace A {
export class Twix { ... }
}
global2.ts
namespace A {
export class PeanutButterCup { ... }
}
global3.ts
namespace A {
export class KitKat { ... }
}
This code creates a merged namespace A
in the global scope:
This setup is useful, but doesn't apply in the case of modules (because modules don't pollute the global scope).
Going back to the original example, the cups A
, A
, and A
aren't doing you any favors. Instead, you could write the code as:
Mod1.ts
export class Twix { ... }
Mod2.ts
export class PeanutButterCup { ... }
Mod3.ts
export class KitKat { ... }
to create a picture that looks like this:
Much better!
Now, if you're still thinking about how much you really want to use namespace with your modules, read on...
We need to go back to the origins of why namespaces exist in the first place and examine whether those reasons make sense for external modules.
Organization: Namespaces are handy for grouping together logically-related objects and types. For example, in C#, you're going to find all the collection types in System.Collections
. By organizing our types into hierarchical namespaces, we provide a good "discovery" experience for users of those types.
Name Conflicts: Namespaces are important to avoid naming collisions. For example, you might have My.Application.Customer.AddForm
and My.Application.Order.AddForm
-- two types with the same name, but a different namespace. In a language where all identifiers exist in the same root scope and all assemblies load all types, it's critical to have everything be in a namespace.
Do those reasons make sense in external modules?
Organization: External modules are already present in a file system, necessarily. We have to resolve them by path and filename, so there's a logical organization scheme for us to use. We can have a /collections/generic/
folder with a list
module in it.
Name Conflicts: This doesn't apply at all in external modules. Within a module, there's no plausible reason to have two objects with the same name. From the consumption side, the consumer of any given module gets to pick the name that they will use to refer to the module, so accidental naming conflicts are impossible.
Even if you don't believe that those reasons are adequately addressed by how modules work, the "solution" of trying to use namespaces in external modules doesn't even work.
A story:
Your friend Bob calls you up. "I have a great new organization scheme in my house", he says, "come check it out!". Neat, let's go see what Bob has come up with.
You start in the kitchen and open up the pantry. There are 60 different boxes, each labelled "Pantry". You pick a box at random and open it. Inside is a single box labelled "Grains". You open up the "Grains" box and find a single box labelled "Pasta". You open the "Pasta" box and find a single box labelled "Penne". You open this box and find, as you expect, a bag of penne pasta.
Slightly confused, you pick up an adjacent box, also labelled "Pantry". Inside is a single box, again labelled "Grains". You open up the "Grains" box and, again, find a single box labelled "Pasta". You open the "Pasta" box and find a single box, this one is labelled "Rigatoni". You open this box and find... a bag of rigatoni pasta.
"It's great!" says Bob. "Everything is in a namespace!".
"But Bob..." you reply. "Your organization scheme is useless. You have to open up a bunch of boxes to get to anything, and it's not actually any more convenient to find anything than if you had just put everything in one box instead of three. In fact, since your pantry is already sorted shelf-by-shelf, you don't need the boxes at all. Why not just set the pasta on the shelf and pick it up when you need it?"
"You don't understand -- I need to make sure that no one else puts something that doesn't belong in the 'Pantry' namespace. And I've safely organized all my pasta into the
Pantry.Grains.Pasta
namespace so I can easily find it"Bob is a very confused man.
You've probably had something similar happen in real life: You order a few things on Amazon, and each item shows up in its own box, with a smaller box inside, with your item wrapped in its own packaging. Even if the interior boxes are similar, the shipments are not usefully "combined".
Going with the box analogy, the key observation is that external modules are their own box. It might be a very complex item with lots of functionality, but any given external module is its own box.
Now that we've figured out that we don't need to use 'namespaces', how should we organize our modules? Some guiding principles and examples follow.
export default
:MyClass.ts
export default class SomeType {
constructor() { ... }
}
MyFunc.ts
function getThing() { return 'thing'; }
export default getThing;
Consumption
import t from './MyClass';
import f from './MyFunc';
var x = new t();
console.log(f());
This is optimal for consumers. They can name your type whatever they want (t
in this case) and don't have to do any extraneous dotting to find your objects.
MyThings.ts
export class SomeType { ... }
export function someFunc() { ... }
Consumption
import * as m from './MyThings';
var x = new m.SomeType();
var y = m.someFunc();
module
/namespace
keyword:MyLargeModule.ts
export namespace Animals {
export class Dog { ... }
export class Cat { ... }
}
export namespace Plants {
export class Tree { ... }
}
Consumption
import { Animals, Plants} from './MyLargeModule';
var x = new Animals.Dog();
All of the following are red flags for module structuring. Double-check that you're not trying to namespace your external modules if any of these apply to your files:
export module Foo { ... }
(remove Foo
and move everything 'up' a level)export class
or export function
that isn't export default
export module Foo {
at top-level (don't think that these are going to combine into one Foo
!)Great question.
Consider the following example (scroller
is a UIScrollView):
float offset = 1000;
[super viewDidLoad];
for (int i=0;i<500; i++) {
UILabel *label = [[[UILabel alloc] initWithFrame:CGRectMake(i * 100, 50, 95, 100)] autorelease];
[label setText:[NSString stringWithFormat:@"label %d",i]];
[self.scroller addSubview:label];
[self.scroller setContentSize:CGSizeMake(self.view.frame.size.width * 2 + offset, 0)];
[self.scroller setContentInset:UIEdgeInsetsMake(0, -offset, 0, 0)];
}
The insets are the ONLY way to force your scroller to have a "window" on the content where you want it. I'm still messing with this sample code, but the idea is there: use the insets to get a "window" on your UIScrollView
.
You can probably encode the tar file in Base64. Base 64 will give you a pure ASCII representation of the file that you can store in a plain text file. Then you can retrieve the tar file by decoding the text back.
You do something like:
require 'base64'
file_contents = Base64.encode64(tar_file_data)
Have look at the Base64 Rubydocs to get a better idea.
In info.plist
View controller-based status bar appearance NO
Status bar is initially hidden YES
In view controller.m
- (BOOL) prefersStatusBarHidden
{
return YES;
}
It is SUBSTITUTE(B1," ","")
, not REPLACE(xx;xx;xx)
.
Be careful, in some cases clicking on a Form Control or Active X Control will give two different results for the same macro - which should not be the case. I find Active X more reliable.
The 1
s are because everything is perfectly correlated with itself, and the NA
s are because there are NA
s in your variables.
You will have to specify how you want R to compute the correlation when there are missing values, because the default is to only compute a coefficient with complete information.
You can change this behavior with the use
argument to cor
, see ?cor
for details.
Iterator.remove()
is safe, you can use it like this:
List<String> list = new ArrayList<>();
// This is a clever way to create the iterator and call iterator.hasNext() like
// you would do in a while-loop. It would be the same as doing:
// Iterator<String> iterator = list.iterator();
// while (iterator.hasNext()) {
for (Iterator<String> iterator = list.iterator(); iterator.hasNext();) {
String string = iterator.next();
if (string.isEmpty()) {
// Remove the current element from the iterator and the list.
iterator.remove();
}
}
Note that Iterator.remove()
is the only safe way to modify a collection during iteration; the behavior is unspecified if the underlying collection is modified in any other way while the iteration is in progress.
Source: docs.oracle > The Collection Interface
And similarly, if you have a ListIterator
and want to add items, you can use ListIterator#add
, for the same reason you can use Iterator#remove
— it's designed to allow it.
In your case you tried to remove from a list, but the same restriction applies if trying to put
into a Map
while iterating its content.
type in Terminal:
$ mvn --version
then get following result:
Apache Maven 3.0.5 (r01de14724cdef164cd33c7c8c2fe155faf9602da; 2013-02-19 16:51:28+0300)
Maven home: /opt/local/share/java/maven3
Java version: 1.6.0_65, vendor: Apple Inc.
Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
Default locale: ru_RU, platform encoding: MacCyrillic
OS name: "mac os x", version: "10.9.4", arch: "x86_64", family: "mac"
here in second line we have:
Maven home: /opt/local/share/java/maven3
type this path into field on configuration dialog. That's all to fix!
Default options are read from the following files in the given order:
/etc/mysql/my.cnf
/etc/my.cnf
~/.my.cnf
Had this happen to me when committing from Xcode 6, after I had added a directory of files and subdirectories to the project folder. The problem was that, in the Commit sheet, in the left sidebar, I had checkmarked not only the root directory that I had added, but all of its descendants too. To solve the problem, I checkmarked only the root directory. This also committed all of the descendants, as desired, with no error.
If you want to extract from a
tag then
$('.dep_buttons').text().substr(0,25)
With the mouseover event,
$(this).text($(this).text().substr(0, 25));
The above will extract the text of a tag, then extract again assign it back.
There's an excellent plugin called ApplySyntax (previously DetectSyntax) that provides certain other niceties for file-syntax matching. allows regex expressions etc.