I think process.communicate() would be suitable for output having small size. For larger output it would not be the best approach.
That depends on what the issue is. If it's to clone and modify the environment one solution could be:
subprocess.Popen(my_command, env=dict(os.environ, PATH="path"))
But that somewhat depends on that the replaced variables are valid python identifiers, which they most often are (how often do you run into environment variable names that are not alphanumeric+underscore or variables that starts with a number?).
Otherwise you'll could write something like:
subprocess.Popen(my_command, env=dict(os.environ,
**{"Not valid python name":"value"}))
In the very odd case (how often do you use control codes or non-ascii characters in environment variable names?) that the keys of the environment are bytes
you can't (on python3) even use that construct.
As you can see the techniques (especially the first) used here benefits on the keys of the environment normally is valid python identifiers, and also known in advance (at coding time), the second approach has issues. In cases where that isn't the case you should probably look for another approach.
It may not be obvious how to break a shell command into a sequence of arguments, especially in complex cases. shlex.split()
can do the correct tokenization for args (I'm using Blender's example of the call):
import shlex
from subprocess import Popen, PIPE
command = shlex.split('swfdump /tmp/filename.swf/ -d')
process = Popen(command, stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
In your code it should be
proc1.kill()
Both kill
or terminate
are methods of the Popen
object which sends the signal signal.SIGKILL
to the process.
subprocess.Popen
takes a cwd
argument to set the Current Working Directory; you'll also want to escape your backslashes ('d:\\test\\local'
), or use r'd:\test\local'
so that the backslashes aren't interpreted as escape sequences by Python. The way you have it written, the \t
part will be translated to a tab.
So, your new line should look like:
subprocess.Popen(r'c:\mytool\tool.exe', cwd=r'd:\test\local')
To use your Python script path as cwd, import os
and define cwd using this:
os.path.dirname(os.path.realpath(__file__))
The other answer is very complete, but here is a rule of thumb:
call
is blocking:
call('notepad.exe')
print('hello') # only executed when notepad is closed
Popen
is non-blocking:
Popen('notepad.exe')
print('hello') # immediately executed
You can use subprocess.Popen
. There's a few ways to do it:
import subprocess
cmd = ['/run/myscript', '--arg', 'value']
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
for line in p.stdout:
print line
p.wait()
print p.returncode
Or, if you don't care what the external program actually does:
cmd = ['/run/myscript', '--arg', 'value']
subprocess.Popen(cmd).wait()
Almo's link explains why this happens. To solve the problem, use the decimal library.
The most simplest solution I have seen to supply a short execution to the UI thread is via the post() method of a view. This is needed since UI methods are not re-entrant. The method for this is:
package android.view;
public class View;
public boolean post(Runnable action);
The post() method corresponds to the SwingUtilities.invokeLater(). Unfortunately I didn't find something simple that corresponds to the SwingUtilities.invokeAndWait(), but one can build the later based on the former with a monitor and a flag.
So what you save by this is creating a handler. You simply need to find your view and then post on it. You can find your view via findViewById() if you tend to work with id-ed resources. The resulting code is very simple:
/* inside your non-UI thread */
view.post(new Runnable() {
public void run() {
/* the desired UI update */
}
});
}
Note: Compared to SwingUtilities.invokeLater() the method View.post() does return a boolean, indicating whether the view has an associated event queue. Since I used the invokeLater() resp. post() anyway only for fire and forget, I did not check the result value. Basically you should call post() only after onAttachedToWindow() has been called on the view.
Best Regards
Below code is using com.google.gson.JsonArray
.
I have printed the number of element in list as well as the elements in List
import java.util.ArrayList;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
public class Test {
static String str = "{ "+
"\"client\":\"127.0.0.1\"," +
"\"servers\":[" +
" \"8.8.8.8\"," +
" \"8.8.4.4\"," +
" \"156.154.70.1\"," +
" \"156.154.71.1\" " +
" ]" +
"}";
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
JsonParser jsonParser = new JsonParser();
JsonObject jo = (JsonObject)jsonParser.parse(str);
JsonArray jsonArr = jo.getAsJsonArray("servers");
//jsonArr.
Gson googleJson = new Gson();
ArrayList jsonObjList = googleJson.fromJson(jsonArr, ArrayList.class);
System.out.println("List size is : "+jsonObjList.size());
System.out.println("List Elements are : "+jsonObjList.toString());
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
OUTPUT
List size is : 4
List Elements are : [8.8.8.8, 8.8.4.4, 156.154.70.1, 156.154.71.1]
Or you can use the more obvious solution, right in the GUI: Tools -> Messages (set verbosity to 2)...
Set flag -ObjC in Other linker Flag in your Project setting... (Not in the static library project but the project you that is using static library...) And make sure that in Project setting Configuration is set to All Configuration
You can do it using clone()
function of jQuery, Accepted answer is ok but i am providing alternative to it, you can use append()
, but it works only if you can change html slightly as below:
$(document).ready(function(){_x000D_
$('#clone_btn').click(function(){_x000D_
$("#car_parent").append($("#car2").clone());_x000D_
});_x000D_
});
_x000D_
.car-well{_x000D_
border:1px solid #ccc;_x000D_
text-align: center;_x000D_
margin: 5px;_x000D_
padding:3px;_x000D_
font-weight:bold;_x000D_
}
_x000D_
<!DOCTYPE html>_x000D_
<html>_x000D_
<head>_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
</head>_x000D_
<body>_x000D_
<div id="car_parent">_x000D_
<div id="car1" class="car-well">Normal div</div>_x000D_
<div id="car2" class="car-well" style="background-color:lightpink;color:blue">Clone div</div>_x000D_
<div id="car3" class="car-well">Normal div</div>_x000D_
<div id="car4" class="car-well">Normal div</div>_x000D_
<div id="car5" class="car-well">Normal div</div>_x000D_
</div>_x000D_
<button type="button" id="clone_btn" class="btn btn-primary">Clone</button>_x000D_
_x000D_
</body>_x000D_
</html>
_x000D_
Write own code because everyone uses a different class name. I am resetting jQuery validation by this code.
$('.error').remove();
$('.is-invalid').removeClass('is-invalid');
In .NET, StringBuilder is still faster than appending strings. I'm pretty sure that in Java, they just create a StringBuffer under the hood when you append strings, so there's isn't really a difference. I'm not sure why they haven't done this in .NET yet.
Another way could be using observers with a fake model class through the activity and the service itself, implementing an MVC pattern variation. I don't know if it's the best way to accomplish this, but it's the way that worked for me. If you need some example ask for it and i'll post something.
Nice answer you can find in book Learning Cocoa with Objective-C (ISBN: 978-1-491-90139-7)
Modules are a new means of including and linking files and libraries into your projects. To understand how modules work and what benefits they have, it is important to look back into the history of Objective-C and the #import statement Whenever you want to include a file for use, you will generally have some code that looks like this:
#import "someFile.h"
Or in the case of frameworks:
#import <SomeLibrary/SomeFile.h>
Because Objective-C is a superset of the C programming language, the #import state- ment is a minor refinement upon C’s #include
statement. The #include statement is very simple; it copies everything it finds in the included file into your code during compilation. This can sometimes cause significant problems. For example, imagine you have two header files: SomeFileA.h
and SomeFileB.h
; SomeFileA.h
includes SomeFileB.h
, and SomeFileB.h
includes SomeFileA.h
. This creates a loop, and can confuse the coimpiler. To deal with this, C programmers have to write guards against this type of event from occurring.
When using #import
, you don’t need to worry about this issue or write header guards to avoid it. However, #import
is still just a glorified copy-and-paste action, causing slow compilation time among a host of other smaller but still very dangerous issues (such as an included file overriding something you have declared elsewhere in your own code.)
Modules are an attempt to get around this. They are no longer a copy-and-paste into source code, but a serialised representation of the included files that can be imported into your source code only when and where they’re needed. By using modules, code will generally compile faster, and be safer than using either #include or #import
.
Returning to the previous example of importing a framework:
#import <SomeLibrary/SomeFile.h>
To import this library as a module, the code would be changed to:
@import SomeLibrary;
This has the added bonus of Xcode linking the SomeLibrary framework into the project automatically. Modules also allow you to only include the components you really need into your project. For example, if you want to use the AwesomeObject component in the AwesomeLibrary framework, normally you would have to import everything just to use the one piece. However, using modules, you can just import the specific object you want to use:
@import AwesomeLibrary.AwesomeObject;
For all new projects made in Xcode 5, modules are enabled by default. If you want to use modules in older projects (and you really should) they will have to be enabled in the project’s build settings. Once you do that, you can use both #import
and @import
statements in your code together without any concern.
@Simple-Solution
I use a simple Python HTTP server. When in the directory of the Angular app in question (using a MBP with Mavericks 10.9 and Python 2.x) I simply run
python -m SimpleHTTPServer 8080
And that sets up the simple server on port 8080 letting you visit localhost:8080
on your browser to view the app in development.
Hope that helped!
You should use hasOwnProperty
. For example:
myObj.hasOwnProperty('myKey');
Note: If you are using ESLint, the above may give you an error for violating the no-prototype-builtins rule, in that case the workaround is as below:
Object.prototype.hasOwnProperty.call(myObj, 'myKey');
Why not one more answer? setState()
and the setState()
-triggered render()
have both completed executing when you call componentDidMount()
(the first time render()
is executed) and/or componentDidUpdate()
(any time after render()
is executed). (Links are to ReactJS.org docs.)
Example with componentDidUpdate()
Caller, set reference and set state...
<Cmp ref={(inst) => {this.parent=inst}}>;
this.parent.setState({'data':'hello!'});
Render parent...
componentDidMount() { // componentDidMount() gets called after first state set
console.log(this.state.data); // output: "hello!"
}
componentDidUpdate() { // componentDidUpdate() gets called after all other states set
console.log(this.state.data); // output: "hello!"
}
Example with componentDidMount()
Caller, set reference and set state...
<Cmp ref={(inst) => {this.parent=inst}}>
this.parent.setState({'data':'hello!'});
Render parent...
render() { // render() gets called anytime setState() is called
return (
<ChildComponent
state={this.state}
/>
);
}
After parent rerenders child, see state in componentDidUpdate()
.
componentDidMount() { // componentDidMount() gets called anytime setState()/render() finish
console.log(this.props.state.data); // output: "hello!"
}
<?php
$args = array( 'post_type' => 'product', 'category' => 34, 'posts_per_page' => -1 );
$products = get_posts( $args );
?>
This should grab all the products you want, I may have the post type wrong though I can't quite remember what woo-commerce uses for the post type. It will return an array of products
I know this is a late entry but I have created a simple upload directive. Which you can get working in no time!
<input type="file" multiple ng-simple-upload web-api-url="/api/post"
callback-fn="myCallback" />
ng-simple-upload more on Github with an example using Web API.
Taken from: http://www.w3.org/Style/Examples/007/units:
The em is simply the font size. In an element with a 2in font, 1em thus means 2in. Expressing sizes, such as margins and paddings, in em means they are related to the font size, and if the user has a big font (e.g., on a big screen) or a small font (e.g., on a handheld device), the sizes will be in proportion. Declarations such as 'text-indent: 1.5em' and 'margin: 1em' are extremely common in CSS.
em
is basically CSS property for font sizes.
Please find below - its the simplest one I use :
select owner, count(*) from dba_tables group by owner;
Like it always is, after having looked for a long time before writing something to the site, just a minute after I posted here I found my solution.
It thought I'd share it here so someone else can find it.
//Add "parent" class to pages with subpages, change submenu class name, add depth class
class Prio_Walker extends Walker_Nav_Menu {
function display_element( $element, &$children_elements, $max_depth, $depth=0, $args, &$output ){
$GLOBALS['dd_children'] = ( isset($children_elements[$element->ID]) )? 1:0;
$GLOBALS['dd_depth'] = (int) $depth;
parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output );
}
function start_lvl(&$output, $depth) {
$indent = str_repeat("\t", $depth);
$output .= "\n$indent<ul class=\"children level-".$depth."\">\n";
}
}
add_filter('nav_menu_css_class','add_parent_css',10,2);
function add_parent_css($classes, $item){
global $dd_depth, $dd_children;
$classes[] = 'depth'.$dd_depth;
if($dd_children)
$classes[] = 'parent';
return $classes;
}
//Add class to parent pages to show they have subpages (only for automatic wp_nav_menu)
function add_parent_class( $css_class, $page, $depth, $args )
{
if ( ! empty( $args['has_children'] ) )
$css_class[] = 'parent';
return $css_class;
}
add_filter( 'page_css_class', 'add_parent_class', 10, 4 );
This is where I found the solution: Solution in WordPress support forum
In my case it was showing an error because there was a redundancy in <uses-permission>
element.
So, please check in your AndroidManifest.xml
file for the same.
Android Studio version is 3.0.1
Operating System is Windows 7
Here is the screenshot for reference.
Are you trying to submit a form?
Listen to the submit
event instead.
This will handle click
and enter
.
If you must use enter key...
document.querySelector('#txtSearch').addEventListener('keypress', function (e) {
if (e.key === 'Enter') {
// code for enter
}
});
If you're using version 3.x of Bootstrap, the correct way to do this now is:
$('#myModal').on('hidden.bs.modal', function (e) {
// do something...
})
Scroll down to the events section to learn more.
http://getbootstrap.com/javascript/#modals-usage
This appears to remain unchanged for whenever version 4 releases (http://v4-alpha.getbootstrap.com/components/modal/#events), but if it does I'll be sure to update this post with the relevant information.
How do I print out my $ids and $nIds?
print "$ids\n";
print "$nIds\n";
I tried simply print $ids
, but Perl complains.
Complains about what? Uninitialised value? Perhaps your loop was never entered due to an error opening the file. Be sure to check if open
returned an error, and make sure you are using use strict; use warnings;
.
my ($ids, $nIds)
is a list, right? With two elements?
It's a (very special) function call. $ids,$nIds
is a list with two elements.
If you just want to display it when you get a response add this to your loadpage()
function loadpage(page_request, containerid){
if (page_request.readyState == 4 && page_request.status==200) {
var container = document.getElementById(containerid);
container.innerHTML=page_request.responseText;
container.style.visibility = 'visible';
// or
container.style.display = 'block';
}
but this depend entirely on how you hid the div in the first place
Ok... I made a comment that they were different but couldn't explain exactly how but now I know.
String Property { get; } = "value";
is not the same as
String Property => "value";
Here's the difference...
When you use the auto initializer the property creates the instance of value and uses that value persistently. In the above post there is a broken link to Bill Wagner, that explains this well, and I searched the correct link to understand it myself.
In my situation I had my property auto initialize a command in a ViewModel for a View. I changed the property to use expression bodied initializer and the command CanExecute stopped working.
Here's what it looked like and here's what was happening.
Command MyCommand { get; } = new Command(); //works
here's what I changed it to.
Command MyCommand => new Command(); //doesn't work properly
The difference here is when I use { get; } =
I create and reference the SAME command in that property. When I use =>
I actually create a new command and return it every time the property is called. Therefore, I could never update the CanExecute
on my command because I was always telling it to update a new reference of that command.
{ get; } = // same reference
=> // new reference
All that said, if you are just pointing to a backing field then it works fine. This only happens when the auto or expression body creates the return value.
Create WScript.Shell object and invoke Run() method on it.
http://msdn.microsoft.com/en-us/library/d5fk67ky(v=vs.85).aspx
Another reply to your questions (assuming you are on master and already did "git fetch origin" to make you repo aware about remote changes):
1) Commits on remote branch since when local branch was created:
git diff HEAD...origin/master
2) I assume by "working copy" you mean your local branch with some local commits that are not yet on remote. To see the differences of what you have on your local branch but that does not exist on remote branch run:
git diff origin/master...HEAD
3) See the answer by dbyrne.
Include the port number with the IP address.
For example:
http://19.18.20.101:5566
where 5566 is the port number.
As an addition to e.g. @Intrepidd s answer, in certain situations you want to use fetch
instead of []
. For fetch
not to throw an exception when the key is not found, pass it a default value.
puts "ok" if hash.fetch('key', nil) == 'X'
Reference: https://docs.ruby-lang.org/en/2.3.0/Hash.html .
A simple way to check if an element exist can be done through one-line code of jQuery.
Here is the code below:
if ($('#elementId').length > 0) {
// Do stuff here if the element exists
} else {
// Do stuff here if the element does not exist
}
Disable Access Protection in Antivirus,
I faced same issue at last found the below logs from antivirus.
Blocked by Access Protection rule NT AUTHORITY\SYSTEM C:\WINDOWS\SYSTEM32\SVCHOST.EXE C:\PROGRAM FILES (X86)\MCAFEE\VIRUSSCAN ENTERPRISE\MCCONSOL.EXE Common Standard Protection:Prevent termination of McAfee processes Action blocked : Terminate Blocked by port blocking rule C:\USERS\username\APPDATA\LOCAL\PROGRAMS\PYTHON\PYTHON37-32\PYTHON.EXE Anti-virus Standard Protection:Prevent mass mailing worms from sending mail
I think you're looking for this:
elements = [10, 11, 12, 13, 14, 15]
indices = (1,1,2,1,5)
result_list = [elements[i] for i in indices]
Yes, use INSERT ... ON DUPLICATE KEY UPDATE id=id
(it won't trigger row update even though id
is assigned to itself).
If you don't care about errors (conversion errors, foreign key errors) and autoincrement field exhaustion (it's incremented even if the row is not inserted due to duplicate key), then use INSERT IGNORE
.
What is the exact contents you are passing into $html_brand?
If it is has an invalid URL syntax, you will very likely get the HTTP code 0.
Haven't tried it myself, but this page has a list of plugin modules that run in Linux' built in iptables IP filtering system. One of the modules is called "nth", and allows you to set up a rule that will drop a configurable rate of the packets. Might be a good place to start, at least.
your link is generated when the page loads therefore it will always have the original value in it. You will need to set the link via javascript
You could also just wrap that in a form and have hidden fields for id
, productid
, and unitrate
Here's a sample for ya.
HTML
<input type="text" id="ss" value="1"/>
<br/>
<input type="submit" id="go" onClick="changeUrl()"/>
<br/>
<a id="imgUpdate" href="/someurl?quantity=1">click me</a>
JS
function changeUrl(){
var url = document.getElementById("imgUpdate").getAttribute('href');
var inputValue = document.getElementById('ss').value;
var currentQ = GiveMeTheQueryStringParameterValue("quantity",url);
url = url.replace("quantity=" + currentQ, "quantity=" + inputValue);
document.getElementById("imgUpdate").setAttribute('href',url)
}
function GiveMeTheQueryStringParameterValue(parameterName, input) {
parameterName = parameterName.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
var regex = new RegExp("[\\?&]" + parameterName + "=([^&#]*)");
var results = regex.exec(input);
if (results == null)
return "";
else
return decodeURIComponent(results[1].replace(/\+/g, " "));
}
this could be cleaned up and expanded as you need it but the example works
When I wanted to change namespace and the solution name I did as follows:
1) changed the namespace by selecting it and renaming it and I did the same with solution name
2) clicked on the light bulb and renamed all the instances of old namespace
3) removed all the projects from the solution
4) closed the visual studio
5) renamed all the projects in windows explorer
6) opened visual studio and added all the projects again
7) rename namespaces in all projects in their properties
8) removed bin folder (from all projects)
9) build the project again
That worked for me without any problems and my project had as well source control. All was fine after pushing those changes to the remote.
Simply add Templates URL:
<a href="{% url 'service_data' d.id %}">
...XYZ
</a>
Used in django 2.0
In some functions I add a parameter:
..., bool verify = true)
True means throw, false means return some error return value. This way, whoever uses this function has both options. The default should be true, for the benefit of those who forget about error handling.
In [34]: import pandas as pd
In [35]: import numpy as np
In [36]: df = pd.DataFrame([1,2,3,4], columns=["data"])
In [37]: df
Out[37]:
data
0 1
1 2
2 3
3 4
In [38]: df["desired_output"] = np.where(df["data"] <2.5, "False", "True")
In [39]: df
Out[39]:
data desired_output
0 1 False
1 2 False
2 3 True
3 4 True
If selected more 1 file:
$("input[type="file"]").change(function() {
var files = $("input[type="file"]").prop("files");
var names = $.map(files, function(val) { return val.name; });
$(".some_div").text(names);
});
files
will be a FileList
object. names
is an array of strings (file names).
Note that it may be important to use the "inplace" command when you want to do the drop in line.
df.drop(df.index[[1,3]], inplace=True)
Because your original question is not returning anything, this command should be used. http://pandas.pydata.org/pandas-docs/version/0.17.0/generated/pandas.DataFrame.drop.html
If your using an IDE, you must start your code at the very first line. example Im using aptana studio3
//line1<?php
//line2 your code
//line3 your code
....
....
Hope it helps.That solves my problem,.
There are multiple options. See Split single comma delimited string into rows in Oracle
You just need to add LEVEL in the select list as a column, to get the sequence number to each row returned. Or, ROWNUM would also suffice.
Using any of the below SQLs, you could include them into a FUNCTION.
INSTR in CONNECT BY clause:
SQL> WITH DATA AS 2 ( SELECT 'word1, word2, word3, word4, word5, word6' str FROM dual 3 ) 4 SELECT trim(regexp_substr(str, '[^,]+', 1, LEVEL)) str 5 FROM DATA 6 CONNECT BY instr(str, ',', 1, LEVEL - 1) > 0 7 / STR ---------------------------------------- word1 word2 word3 word4 word5 word6 6 rows selected. SQL>
REGEXP_SUBSTR in CONNECT BY clause:
SQL> WITH DATA AS 2 ( SELECT 'word1, word2, word3, word4, word5, word6' str FROM dual 3 ) 4 SELECT trim(regexp_substr(str, '[^,]+', 1, LEVEL)) str 5 FROM DATA 6 CONNECT BY regexp_substr(str , '[^,]+', 1, LEVEL) IS NOT NULL 7 / STR ---------------------------------------- word1 word2 word3 word4 word5 word6 6 rows selected. SQL>
REGEXP_COUNT in CONNECT BY clause:
SQL> WITH DATA AS 2 ( SELECT 'word1, word2, word3, word4, word5, word6' str FROM dual 3 ) 4 SELECT trim(regexp_substr(str, '[^,]+', 1, LEVEL)) str 5 FROM DATA 6 CONNECT BY LEVEL
Using XMLTABLE
SQL> WITH DATA AS 2 ( SELECT 'word1, word2, word3, word4, word5, word6' str FROM dual 3 ) 4 SELECT trim(COLUMN_VALUE) str 5 FROM DATA, xmltable(('"' || REPLACE(str, ',', '","') || '"')) 6 / STR ------------------------------------------------------------------------ word1 word2 word3 word4 word5 word6 6 rows selected. SQL>
Using MODEL clause:
SQL> WITH t AS 2 ( 3 SELECT 'word1, word2, word3, word4, word5, word6' str 4 FROM dual ) , 5 model_param AS 6 ( 7 SELECT str AS orig_str , 8 ',' 9 || str 10 || ',' AS mod_str , 11 1 AS start_pos , 12 Length(str) AS end_pos , 13 (Length(str) - Length(Replace(str, ','))) + 1 AS element_count , 14 0 AS element_no , 15 ROWNUM AS rn 16 FROM t ) 17 SELECT trim(Substr(mod_str, start_pos, end_pos-start_pos)) str 18 FROM ( 19 SELECT * 20 FROM model_param MODEL PARTITION BY (rn, orig_str, mod_str) 21 DIMENSION BY (element_no) 22 MEASURES (start_pos, end_pos, element_count) 23 RULES ITERATE (2000) 24 UNTIL (ITERATION_NUMBER+1 = element_count[0]) 25 ( start_pos[ITERATION_NUMBER+1] = instr(cv(mod_str), ',', 1, cv(element_no)) + 1, 26 end_pos[iteration_number+1] = instr(cv(mod_str), ',', 1, cv(element_no) + 1) ) ) 27 WHERE element_no != 0 28 ORDER BY mod_str , 29 element_no 30 / STR ------------------------------------------ word1 word2 word3 word4 word5 word6 6 rows selected. SQL>
You could also use DBMS_UTILITY package provided by Oracle. It provides various utility subprograms. One such useful utility is COMMA_TO_TABLE procedure, which converts a comma-delimited list of names into a PL/SQL table of names.
Stored Procedure for find text in SP.. {Dinesh Baskaran} Trendy Global Systems pvt ltd
create Procedure [dbo].[TextFinder]
(@Text varchar(500),@Type varchar(2)=NULL)
AS
BEGIN
SELECT DISTINCT o.name AS ObjectName,
CASE o.xtype
WHEN 'C' THEN 'CHECK constraint '
WHEN 'D' THEN 'Default or DEFAULT constraint'
WHEN 'F' THEN 'FOREIGN KEY constraint'
WHEN 'FN' THEN 'Scalar function'
WHEN 'IF' THEN 'In-lined table-function'
WHEN 'K' THEN 'PRIMARY KEY or UNIQUE constraint'
WHEN 'L' THEN 'Log'
WHEN 'P' THEN 'Stored procedure'
WHEN 'R' THEN 'Rule'
WHEN 'RF' THEN 'Replication filter stored procedure'
WHEN 'S' THEN 'System table'
WHEN 'TF' THEN 'Table function'
WHEN 'TR' THEN 'Trigger'
WHEN 'U' THEN 'User table'
WHEN 'V' THEN 'View'
WHEN 'X' THEN 'Extended stored procedure'
ELSE o.xtype
END AS ObjectType,
ISNULL( p.Name, '[db]') AS Location
FROM syscomments c
INNER JOIN sysobjects o ON c.id=o.id
LEFT JOIN sysobjects p ON o.Parent_obj=p.id
WHERE c.text LIKE '%' + @Text + '%' and
o.xtype = case when @Type IS NULL then o.xtype else @Type end
ORDER BY Location, ObjectName
END
There is no REVOKE ALL PRIVILEGES ON ALL VIEWS
, so I ended with:
do $$
DECLARE r record;
begin
for r in select * from pg_views where schemaname = 'myschem'
loop
execute 'revoke all on ' || quote_ident(r.schemaname) ||'.'|| quote_ident(r.viewname) || ' from "XUSER"';
end loop;
end $$;
and usual:
REVOKE ALL PRIVILEGES ON DATABASE mydb FROM "XUSER";
REVOKE ALL PRIVILEGES ON SCHEMA myschem FROM "XUSER";
REVOKE ALL PRIVILEGES ON ALL TABLES IN SCHEMA myschem FROM "XUSER";
REVOKE ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA myschem FROM "XUSER";
REVOKE ALL PRIVILEGES ON ALL FUNCTIONS IN SCHEMA myschem FROM "XUSER";
for the following to succeed:
drop role "XUSER";
The stdClass allows you to create anonymous classes and with object casting you can also access keys of an associative array in OOP style. Just like you would access the regular object property.
class Example {
private $options;
public function __construct(Array $setup)
{
// casting Array to stdClass object
$this->options = (object) $setup;
// access stdClass object in oop style - here transform data in OOP style using some custom method or something...
echo $this->options->{'name'}; // ->{'key'}
echo $this->options->surname; // ->key
}
}
$ob1 = new Example(["name" => "John", "surname" => "Doe"]);
will echo
John Doe
Convert binary file to base64 & vice versa. Prove in python 3.5.2
import base64
read_file = open('/tmp/newgalax.png', 'rb')
data = read_file.read()
b64 = base64.b64encode(data)
print (b64)
# Save file
decode_b64 = base64.b64decode(b64)
out_file = open('/tmp/out_newgalax.png', 'wb')
out_file.write(decode_b64)
# Test in python 3.5.2
I found that I had to use:
npm uninstall @ionic/cli
to stop ionic from still being active.
I know that is a little bit dated, but with basic commands, we can take the mac address of an interface:
ip link show eth0 | grep link/ether | awk '{print $2}'
Have a nice day!
This depends on how you want the # of months to be defined. Answer this questions: 'What is difference in months: Feb 15, 2008 - Mar 12, 2009'. Is it defined by clear cut # of days which depends on leap years- what month it is, or same day of previous month = 1 month.
A calculation for Days:
Feb 15 -> 29 (leap year) = 14 Mar 1, 2008 + 365 = Mar 1, 2009. Mar 1 -> Mar 12 = 12 days. 14 + 365 + 12 = 391 days. Total = 391 days / (avg days in month = 30) = 13.03333
A calculation of months:
Feb 15 2008 - Feb 15 2009 = 12 Feb 15 -> Mar 12 = less than 1 month Total = 12 months, or 13 if feb 15 - mar 12 is considered 'the past month'
It tells the compiler to try to use a CPU register, instead of RAM, to store the variable. Registers are in the CPU and much faster to access than RAM. But it's only a suggestion to the compiler, and it may not follow through.
You need to use background-image instead of backgroundImage. For example:
$(function() {
$('.home').click(function() {
$(this).css('background-image', 'url(images/tabs3.png)');
});
}):
Try the following function implemented in Swift 3.0 and above
func delayWithSeconds(_ seconds: Double, completion: @escaping () -> ()) {
DispatchQueue.main.asyncAfter(deadline: .now() + seconds) {
completion()
}
}
Usage
delayWithSeconds(1) {
//Do something
}
The following path worked for me: classpath:/path/to/resource/in/jar
There can be one of the two cause for this error:
A simple way is changing to required sdk in some android project the number of
compileSdkVersion
in build.gradle file and you can install with the manager
You need to escape the backslash \
:
println yourString.replace("\\", "/")
You write like this-:
xAxis: {
type: 'datetime',
dateTimeLabelFormats: {
day: '%d %b %Y' //ex- 01 Jan 2016
}
}
also check for other datetime format
http://api.highcharts.com/highcharts#xAxis.dateTimeLabelFormats
Here's a clear picture:
Assuming we have branch-A and branch-B
We want to merge branch-B into branch-A
on branch-B -> A: switch to branch-A
on branch-A: git merge branch-B
After installing socket.io-client:
npm install socket.io-client
This is how the client code looks like:
var io = require('socket.io-client'),
socket = io.connect('localhost', {
port: 1337
});
socket.on('connect', function () { console.log("socket connected"); });
socket.emit('private message', { user: 'me', msg: 'whazzzup?' });
Thanks alessioalex.
The []
s in a regex denote a character class. If no ranges are specified, it implicitly ors every character within it together. Thus, [abcde]
is the same as (a|b|c|d|e)
, except that it doesn't capture anything; it will match any one of a
, b
, c
, d
, or e
. All a range indicates is a set of characters; [ac-eg]
says "match any one of: a
; any character between c
and e
; or g
". Thus, your match says "match any one of: 0
; any character between 1
and 1
(i.e., just 1
); or 2
.
Your goal is evidently to specify a number range: any number between 01
and 12
written with two digits. In this specific case, you can match it with 0[1-9]|1[0-2]
: either a 0
followed by any digit between 1
and 9
, or a 1
followed by any digit between 0
and 2
. In general, you can transform any number range into a valid regex in a similar manner. There may be a better option than regular expressions, however, or an existing function or module which can construct the regex for you. It depends on your language.
I have encountered this problem and finally solved it today, so I write down what I have learned and I hope it is helpful for someone who is new to Android's ViewPager
and update as I do. I'm using FragmentStatePagerAdapter
in API level 17 and currently have just 2 fragments. I think there must be something not correct, please correct me, thanks.
Serialized data has to be loaded into memory. This can be done using a CursorLoader
/AsyncTask
/Thread
. Whether it's automatically loaded depends on your code. If you are using a CursorLoader
, it's auto-loaded since there is a registered data observer.
After you call viewpager.setAdapter(pageradapter)
, the adapter's getCount()
is constantly called to build fragments. So if data is being loaded, getCount()
can return 0, thus you don't need to create dummy fragments for no data shown.
After the data is loaded, the adapter will not build fragments automatically since getCount()
is still 0, so we can set the actually loaded data number to be returned by getCount()
, then call the adapter's notifyDataSetChanged()
. ViewPager
begin to create fragments (just the first 2 fragments) by data in memory. It's done before notifyDataSetChanged()
is returned. Then the ViewPager
has the right fragments you need.
If the data in the database and memory are both updated (write through), or just data in memory is updated (write back), or only data in the database is updated. In the last two cases if data is not automatically loaded from the database to memory (as mentioned above).
The ViewPager
and pager adapter just deal with data in memory.
So when data in memory is updated, we just need to call the adapter's notifyDataSetChanged()
. Since the fragment is already created, the adapter's onItemPosition()
will be called before notifyDataSetChanged()
returns. Nothing needs to be done in getItemPosition()
. Then the data is updated.
Here's a script based on your newest comment.
#!/usr/bin/env python
from os import rename, listdir
badprefix = "cheese_"
fnames = listdir('.')
for fname in fnames:
if fname.startswith(badprefix*2):
rename(fname, fname.replace(badprefix, '', 1))
If the dataframes DO NOT all have the same columns try the following:
df = pd.DataFrame.from_dict(map(dict,df_list))
Try checking his post. It shows how to implement transitions between web pages using AngularJS's ngRoute and ngAnimate: How to Make iPhone-Style Web Page Transitions Using AngularJS & CSS
Another easy way is to use fire the method before the view is rendered. This is better than postConstruct because for sessionScope, postConstruct will fire only once every session. This will fire every time the page is loaded. This is ofcourse only for JSF 2.0 and not for JSF 1.2.
This is how to do it -
<html xmlns:f="http://java.sun.com/jsf/core">
<f:metadata>
<f:event type="preRenderView" listener="#{myController.onPageLoad}"/>
</f:metadata>
</html>
And in the myController.java
public void onPageLoad(){
// Do something
}
EDIT - Though this is not a solution for the question on this page, I add this just for people using higher versions of JSF.
JSF 2.2 has a new feature which performs this task using viewAction
.
<f:metadata>
<f:viewAction action="#{myController.onPageLoad}" />
</f:metadata>
Here is the Python Doc for datetime object using dateutil package..
from dateutil.parser import parse
get_date_obj = parse("2012-11-01T04:16:13-04:00")
print get_date_obj
You just need to get the value of the texbox and see if it has anything in it:
if (!$(`#textareaid`).val().length)
{
//do stuff
}
To insert my two cents...
By using the list type for the source to be chunked, I found another very compact solution:
public static IEnumerable<IEnumerable<TSource>> Chunk<TSource>(this IEnumerable<TSource> source, int chunkSize)
{
// copy the source into a list
var chunkList = source.ToList();
// return chunks of 'chunkSize' items
while (chunkList.Count > chunkSize)
{
yield return chunkList.GetRange(0, chunkSize);
chunkList.RemoveRange(0, chunkSize);
}
// return the rest
yield return chunkList;
}
The hidden-* and visible-* classes no longer exist in Bootstrap 4. The same fucntion can be achieved in Bootstrap 4 by using the d-* for the specific tiers.
I found it useful (where I wanted to ignore line feeds and not change any files) to ignore them in the .eslintrc using linebreak-style as per this answer: https://stackoverflow.com/a/43008668/1129108
module.exports = {
extends: 'google',
quotes: [2, 'single'],
globals: {
SwaggerEditor: false
},
env: {
browser: true
},
rules:{
"linebreak-style": 0
}
};
you can use ajax calls to call different methods without a postback
$.ajax({
type: "POST",
url: "@(Url.Action("Action", "Controller"))",
data: {id: 'id', id1: 'id1' },
contentType: "application/json; charset=utf-8",
cache: false,
async: true,
success: function (result) {
//do something
}
});
I got this error when making a request using http to a url that required https. I guess the ajax call is not handling the redirection. This is the case even with the crossDomain ajax option set to true (on JQuery 1.5.2).
If you want to use rollback, then use start transaction and otherwise forget all those things,
By default, MySQL automatically commits the changes to the database.
To force MySQL not to commit these changes automatically, execute following:
SET autocommit = 0;
//OR
SET autocommit = OFF
To enable the autocommit mode explicitly:
SET autocommit = 1;
//OR
SET autocommit = ON;
int indexOf()
can be used. It returns -1 if no matching finds
If you turn db.js
into a module you can require it from db_init.js
and just: node db_init.js
.
db.js:
module.exports = {
method1: function () { ... },
method2: function () { ... }
}
db_init.js:
var db = require('./db');
db.method1();
db.method2();
Certainly, how it's done depends on your shell. In Bash, you can use single quotes around the message and can just leave the quote open, which will make Bash prompt for another line, until you close the quote. Like this:
git commit -m 'Message
goes
here'
Alternatively, you can use a "here document" (also known as heredoc):
git commit -F- <<EOF
Message
goes
here
EOF
There is a way to achieve this without type assertion, by using generics instead, which are generally a bit nicer and safer to use.
Unfortunately, getElementById
is not generic, but querySelector
is:
const inputValue = document.querySelector<HTMLInputElement>('#greet')!.value;
Similarly, you can use querySelectorAll
to select multiple elements and use generics so TS can understand that all selected elements are of a particular type:
const inputs = document.querySelectorAll<HTMLInputElement>('.my-input');
This will produce a NodeListOf<HTMLInputElement>
.
For a Simple line Handle Post delay, you can do as following :
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
// Do someting
}
}, 3000);
I hope this helps
"If your content is really interesting, then there is little you can ultimately do to protect it"
That's true, but most copying, in my experience, has nothing to do with "ultimately" or geeks or determined plagiarists or anything like that. It's usually casual copying by clueless people, and even a simple, easily defeated protection (easily defeated by folks like us, that is) works quite well to stop them. They don't know anything about "view source" or caches or anything else... heck, they don't even know what a web browser is or that they're using one.
SELECT CONVERT(date, GETDATE())
for finding a specific value of a column you can use the code below
irrespective of the preference you can use the any of the method you like
df.col_name.value_counts().Value_you_are_looking_for
take example of the titanic dataset
df.Sex.value_counts().male
this gives a count of all male on the ship Although if you want to count a numerical data then you cannot use the above method because value_counts() is used only with series type of data hence fails So for that you can use the second method example
the second method is
#this is an example method of counting on a data frame
df[(df['Survived']==1)&(df['Sex']=='male')].counts()
this is not that efficient as value_counts() but surely will help if you want to count values of a data frame hope this helps
This error message appears if the Windows service launcher has quit immediately after being started. This problem usually happens because the license key has not been correctly deployed(license.txt file in the license folder). If service is not strtign with correct key, just put incorrect key and try to start. Once started, place the correct key, it will work.
One way is to leave a raw_input()
at the end so the script waits for you to press Enter before it terminates.
Make sure you have a getter in House address class and then use:
for(int i = 0; i < houseAddress.size(); i++) {
System.out.print(houseAddress.get(i)**.getAddress()**);
}
git pull origin develop
Since pulling a branch into another directly merges them together
You can use Pandas:
import pandas as pd
pd.Series(your_array).to_json(orient='values')
extension StringProtocol where Index == String.Index {
func nsRange(of string: String) -> NSRange? {
guard let range = self.range(of: string) else { return nil }
return NSRange(range, in: self)
}
}
Connect your iOS device by USB
$ rvictl -s UDID
where UDID
is the UDID of your device (located in XCode under Devices, shortcut to with ??2)
$ sudo launchctl list com.apple.rpmuxd
$ sudo tcpdump -n -t -i rvi0 -q tcp
or $ sudo tcpdump -i rvi0 -n
If victl is not working install Xcode and the developer tools.
For more info see Remote Virtual Interface and for the original tutorial here's the Use Your Loaf blog post
Using the Array constructor makes a new array of the desired length and populates each of the indices with undefined, the assigned an array to a variable one creates the indices that you give it info for.
Creating a custom filter might be overkill here, you can just pass in a custom comparator, if you have the multiples values like:
$scope.selectedGenres = "Action, Drama";
$scope.containsComparator = function(expected, actual){
return actual.indexOf(expected) > -1;
};
then in the filter:
filter:{name:selectedGenres}:containsComparator
If you're writing a bash script, call it by name:
#!/bin/bash
/bin/sh is not guaranteed to be bash. This caused a ton of broken scripts in Ubuntu some years ago (IIRC).
The source builtin works just fine in bash; but you might as well just use dot like Norman suggested.
If you change your time
column into row names, then you can use as.data.frame(as.table(mat))
for simple cases like this.
Example:
data <- c(0.1, 0.2, 0.3, 0.3, 0.4, 0.5)
dimnames <- list(time=c(0, 0.5, 1), name=c("C_0", "C_1"))
mat <- matrix(data, ncol=2, nrow=3, dimnames=dimnames)
as.data.frame(as.table(mat))
time name Freq
1 0 C_0 0.1
2 0.5 C_0 0.2
3 1 C_0 0.3
4 0 C_1 0.3
5 0.5 C_1 0.4
6 1 C_1 0.5
In this case time and name are both factors. You may want to convert time back to numeric, or it may not matter.
Update - I verified the below works. Maybe the creation of your JArray isn't quite right.
[TestMethod]
public void TestJson()
{
var jsonString = @"{""trends"": [
{
""name"": ""Croke Park II"",
""url"": ""http://twitter.com/search?q=%22Croke+Park+II%22"",
""promoted_content"": null,
""query"": ""%22Croke+Park+II%22"",
""events"": null
},
{
""name"": ""Siptu"",
""url"": ""http://twitter.com/search?q=Siptu"",
""promoted_content"": null,
""query"": ""Siptu"",
""events"": null
},
{
""name"": ""#HNCJ"",
""url"": ""http://twitter.com/search?q=%23HNCJ"",
""promoted_content"": null,
""query"": ""%23HNCJ"",
""events"": null
},
{
""name"": ""Boston"",
""url"": ""http://twitter.com/search?q=Boston"",
""promoted_content"": null,
""query"": ""Boston"",
""events"": null
},
{
""name"": ""#prayforboston"",
""url"": ""http://twitter.com/search?q=%23prayforboston"",
""promoted_content"": null,
""query"": ""%23prayforboston"",
""events"": null
},
{
""name"": ""#TheMrsCarterShow"",
""url"": ""http://twitter.com/search?q=%23TheMrsCarterShow"",
""promoted_content"": null,
""query"": ""%23TheMrsCarterShow"",
""events"": null
},
{
""name"": ""#Raw"",
""url"": ""http://twitter.com/search?q=%23Raw"",
""promoted_content"": null,
""query"": ""%23Raw"",
""events"": null
},
{
""name"": ""Iran"",
""url"": ""http://twitter.com/search?q=Iran"",
""promoted_content"": null,
""query"": ""Iran"",
""events"": null
},
{
""name"": ""#gaa"",
""url"": ""http://twitter.com/search?q=%23gaa"",
""promoted_content"": null,
""query"": ""gaa"",
""events"": null
},
{
""name"": ""Facebook"",
""url"": ""http://twitter.com/search?q=Facebook"",
""promoted_content"": null,
""query"": ""Facebook"",
""events"": null
}]}";
var twitterObject = JToken.Parse(jsonString);
var trendsArray = twitterObject.Children<JProperty>().FirstOrDefault(x => x.Name == "trends").Value;
foreach (var item in trendsArray.Children())
{
var itemProperties = item.Children<JProperty>();
//you could do a foreach or a linq here depending on what you need to do exactly with the value
var myElement = itemProperties.FirstOrDefault(x => x.Name == "url");
var myElementValue = myElement.Value; ////This is a JValue type
}
}
So call Children on your JArray to get each JObject in JArray. Call Children on each JObject to access the objects properties.
foreach(var item in yourJArray.Children())
{
var itemProperties = item.Children<JProperty>();
//you could do a foreach or a linq here depending on what you need to do exactly with the value
var myElement = itemProperties.FirstOrDefault(x => x.Name == "url");
var myElementValue = myElement.Value; ////This is a JValue type
}
import base64
from PIL import Image
from io import BytesIO
with open("image.jpg", "rb") as image_file:
data = base64.b64encode(image_file.read())
im = Image.open(BytesIO(base64.b64decode(data)))
im.save('image1.png', 'PNG')
I had the same problem but got round it by setting AutoPostBack to true and in an update panel set the trigger to the dropdownlist control id and event name to SelectedIndexChanged e.g.
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Always" enableViewState="true">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ddl1" EventName="SelectedIndexChanged" />
</Triggers>
<ContentTemplate>
<asp:DropDownList ID="ddl1" runat="server" ClientIDMode="Static" OnSelectedIndexChanged="ddl1_SelectedIndexChanged" AutoPostBack="true" ViewStateMode="Enabled">
<asp:ListItem Text="--Please select a item--" Value="0" />
</asp:DropDownList>
</ContentTemplate>
</asp:UpdatePanel>
This problem is most-likely caused by DNS setup: server cannot resolve the Domain Name, so cannot download the package.
Solution:
sudo nano /etc/network/interface
add a line: dns-nameservers 8.8.8.8
save file and exit
sudo ifdown eth0 && sudo ifup eth0
Then pip install should be working now.
i had the same issue and it solved by removing drawable-v24 with (24) in front of images in drawable folder and replacing them with ordinary drawables.
Besides using Start-Process -Wait
, piping the output of an executable will make Powershell wait. Depending on the need, I will typically pipe to Out-Null
, Out-Default
, Out-String
or Out-String -Stream
. Here is a long list of some other output options.
# Saving output as a string to a variable.
$output = ping.exe example.com | Out-String
# Filtering the output.
ping stackoverflow.com | where { $_ -match '^reply' }
# Using Start-Process affords the most control.
Start-Process -Wait SomeExecutable.com
I do miss the CMD/Bash style operators that you referenced (&, &&, ||). It seems we have to be more verbose with Powershell.
Ahem, you can apply themes to individual activities in XML such as no title. In other words, take it out of your application tag, open the tag declaration and put it in the desired activity tag.
Assume logs are already put to stdout/stderr, and have systemd unit's log in /var/log/syslog
journalctl -u unitxxx.service
Jun 30 13:51:46 host unitxxx[1437]: time="2018-06-30T11:51:46Z" level=info msg="127.0.0.1
Jun 30 15:02:15 host unitxxx[1437]: time="2018-06-30T13:02:15Z" level=info msg="127.0.0.1
Jun 30 15:33:02 host unitxxx[1437]: time="2018-06-30T13:33:02Z" level=info msg="127.0.0.1
Jun 30 15:56:31 host unitxxx[1437]: time="2018-06-30T13:56:31Z" level=info msg="127.0.0.1
Config rsyslog (System Logging Service)
# Create directory for log file
mkdir /var/log/unitxxx
# Then add config file /etc/rsyslog.d/unitxxx.conf
if $programname == 'unitxxx' then /var/log/unitxxx/unitxxx.log
& stop
Restart rsyslog
systemctl restart rsyslog.service
for an array of objects, I used something like this, while following the custom method for php < 5.4:
$jsArray=array();
//transaction is an array of the class transaction
//which implements the method to_json
foreach($transactions as $tran)
{
$jsArray[]=$tran->to_json();
}
echo json_encode($jsArray);
Imagine you have a Computer entity, this entity also cannot live without its Software entity and Hardware entity. These form the Computer
aggregate, the mini-ecosystem for the Computer portion of the domain.
Aggregate Root is the mothership entity inside the aggregate (in our case Computer
), it is a common practice to have your repository only work with the entities that are Aggregate Roots, and this entity is responsible for initializing the other entities.
Consider Aggregate Root as an Entry-Point to an Aggregate.
In C# code:
public class Computer : IEntity, IAggregateRoot
{
public Hardware Hardware { get; set; }
public Software Software { get; set; }
}
public class Hardware : IEntity { }
public class Software : IValueObject { }
public class Repository<T> : IRepository<T> where T : IAggregateRoot {}
Keep in mind that Hardware would likely be a ValueObject too (do not have identity on its own), consider it as an example only.
public static void Copy(String SourceFile, String TargetFile)
{
FileStream fis = null;
FileStream fos = null;
try
{
Console.Write("## Try No. " + a + " : (Write from " + SourceFile + " to " + TargetFile + ")\n");
fis = new FileStream(SourceFile, FileMode.Open, FileAccess.ReadWrite);
fos = new FileStream(TargetFile, FileMode.Create, FileAccess.ReadWrite);
int intbuffer = 5242880;
byte[] b = new byte[intbuffer];
int i;
while ((i = fis.Read(b, 0, intbuffer)) > 0)
{
fos.Write(b, 0, i);
}
Console.Write("Writing file : " + TargetFile + " is successful.\n");
break;
}
catch (Exception e)
{
Console.Write("Writing file : " + TargetFile + " is unsuccessful.\n");
Console.Write(e);
}
finally
{
if (fis != null)
{
fis.Close();
}
if (fos != null)
{
fos.Close();
}
}
}
The code above will read a big file and write to a new big file. The "intbuffer" value can be set in multiple of 1024. While both source and target file are open, it reads the big file by bytes and write to the new target file by bytes. It will not go out of memory.
You can use:
import random
random.choice(range(n))
or:
random.choice(range(1,n+1))
if you want it from 1
to n
and not from 0
.
TL;DR
event.preventDefault()
Prevents the browsers default behaviour (such as opening a link), but does not stop the event from bubbling up the DOM.event.stopPropagation()
Prevents the event from bubbling up the DOM, but does not stop the browsers default behaviour.return false;
Usually seen in jQuery code, it Prevents the browsers default behaviour, Prevents the event from bubbling up the DOM, and immediately Returns from any callback.
One should checkout this really nice & easy 4 min read with examples from where the above piece was copied from.
Another way could be to compile the code first in watch mode with tsc -w
and then use nodemon over javascript. This method is similar in speed to ts-node-dev and has the advantage of being more production-like.
"scripts": {
"watch": "tsc -w",
"dev": "nodemon dist/index.js"
},
You can check your eav_attributes table to find the relevant attribute IDs for each image role, such as;
Then you can use those to set whichever role to any other role for all products like so;
UPDATE catalog_product_entity_varchar AS `v` INNER JOIN (SELECT `value`,`entity_id` FROM `catalog_product_entity_varchar` WHERE `attribute_id`=86) AS `j` ON `j`.`entity_id`=`v`.entity_id SET `v`.`value`=j.`value` WHERE `v`.attribute_id = 85 AND `v`.`entity_id`=`j`.`entity_id`
The above will set all your 'base' roles to the 'small' image of the same product.
For xamarin users add this code to Activity attribute of the MainActivity class,
WindowSoftInputMode =Android.Views.SoftInput.AdjustNothing
or you can add this code Window.SetSoftInputMode(Android.Views.SoftInput.AdjustNothing)
to the OnCreate method of MainActivity class.
int(limit)
returns the value converted into an integer, and doesn't change it in place as you call the function (which is what you are expecting it to).
Do this instead:
limit = int(limit)
Or when definiting limit
:
if 'limit' in user_data :
limit = int(user_data['limit'])
Use _member_names_
for a quick easy result if it is just the names, i.e.
Color._member_names_
Also, you have _member_map_
which returns an ordered dictionary of the elements. This function returns a collections.OrderedDict
, so you have Color._member_names_.items()
and Color._member_names_.values()
to play with. E.g.
return list(map(lambda x: x.value, Color._member_map_.values()))
will return all the valid values of Color
tl;dr - Delete this:
%AppData%/Nuget/Nuget.config
Warning: If you had custom NuGet sources, this will remove them, and you'll have to re-add them.
Longer version:
You might have corrupted your NuGet config. Oh no :(
Nuget.config is a file used to keep track of all of the places that NuGet pulls from, as well as configuring other things. More likely than not, this xml file got broken somehow.
C:\Users\{{username}}\AppData\Roaming\
Nuget.config
For reference: in the good days of 2017, your file should look something like this
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<packageRestore>
<add key="enabled" value="True" />
<add key="automatic" value="True" />
</packageRestore>
<activePackageSource>
<add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
</activePackageSource>
<packageSources>
<add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
<add key="nuget.org" value="https://www.nuget.org/api/v2/" />
<!-- Others -->
</packageSources>
<packageSourceCredentials>
<!-- secret stuff -->
</packageSourceCredentials>
</configuration>
To add a good example on the topic, here is working solution if you need to add a row at specific position.
The extra row is added after the 5th row, or at the end of the table if there are less then 5 rows.
var ninja_row = $('#banner_holder').find('tr');
if( $('#my_table tbody tr').length > 5){
$('#my_table tbody tr').filter(':nth-child(5)').after(ninja_row);
}else{
$('#my_table tr:last').after(ninja_row);
}
I put the content on a ready (hidden) container below the table ..so if you(or the designer) have to change it is not required to edit the JS.
<table id="banner_holder" style="display:none;">
<tr>
<td colspan="3">
<div class="wide-banner"></div>
</td>
</tr>
</table>
I couldnt find a simple working example anywhere (as of Jan 19), so here is an updated version. I have chrome version 71.0.3578.98.
C# Websocket server :
using System;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Security.Cryptography;
namespace WebSocketServer
{
class Program
{
static Socket serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
static private string guid = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
static void Main(string[] args)
{
serverSocket.Bind(new IPEndPoint(IPAddress.Any, 8080));
serverSocket.Listen(1); //just one socket
serverSocket.BeginAccept(null, 0, OnAccept, null);
Console.Read();
}
private static void OnAccept(IAsyncResult result)
{
byte[] buffer = new byte[1024];
try
{
Socket client = null;
string headerResponse = "";
if (serverSocket != null && serverSocket.IsBound)
{
client = serverSocket.EndAccept(result);
var i = client.Receive(buffer);
headerResponse = (System.Text.Encoding.UTF8.GetString(buffer)).Substring(0, i);
// write received data to the console
Console.WriteLine(headerResponse);
Console.WriteLine("=====================");
}
if (client != null)
{
/* Handshaking and managing ClientSocket */
var key = headerResponse.Replace("ey:", "`")
.Split('`')[1] // dGhlIHNhbXBsZSBub25jZQ== \r\n .......
.Replace("\r", "").Split('\n')[0] // dGhlIHNhbXBsZSBub25jZQ==
.Trim();
// key should now equal dGhlIHNhbXBsZSBub25jZQ==
var test1 = AcceptKey(ref key);
var newLine = "\r\n";
var response = "HTTP/1.1 101 Switching Protocols" + newLine
+ "Upgrade: websocket" + newLine
+ "Connection: Upgrade" + newLine
+ "Sec-WebSocket-Accept: " + test1 + newLine + newLine
//+ "Sec-WebSocket-Protocol: chat, superchat" + newLine
//+ "Sec-WebSocket-Version: 13" + newLine
;
client.Send(System.Text.Encoding.UTF8.GetBytes(response));
var i = client.Receive(buffer); // wait for client to send a message
string browserSent = GetDecodedData(buffer, i);
Console.WriteLine("BrowserSent: " + browserSent);
Console.WriteLine("=====================");
//now send message to client
client.Send(GetFrameFromString("This is message from server to client."));
System.Threading.Thread.Sleep(10000);//wait for message to be sent
}
}
catch (SocketException exception)
{
throw exception;
}
finally
{
if (serverSocket != null && serverSocket.IsBound)
{
serverSocket.BeginAccept(null, 0, OnAccept, null);
}
}
}
public static T[] SubArray<T>(T[] data, int index, int length)
{
T[] result = new T[length];
Array.Copy(data, index, result, 0, length);
return result;
}
private static string AcceptKey(ref string key)
{
string longKey = key + guid;
byte[] hashBytes = ComputeHash(longKey);
return Convert.ToBase64String(hashBytes);
}
static SHA1 sha1 = SHA1CryptoServiceProvider.Create();
private static byte[] ComputeHash(string str)
{
return sha1.ComputeHash(System.Text.Encoding.ASCII.GetBytes(str));
}
//Needed to decode frame
public static string GetDecodedData(byte[] buffer, int length)
{
byte b = buffer[1];
int dataLength = 0;
int totalLength = 0;
int keyIndex = 0;
if (b - 128 <= 125)
{
dataLength = b - 128;
keyIndex = 2;
totalLength = dataLength + 6;
}
if (b - 128 == 126)
{
dataLength = BitConverter.ToInt16(new byte[] { buffer[3], buffer[2] }, 0);
keyIndex = 4;
totalLength = dataLength + 8;
}
if (b - 128 == 127)
{
dataLength = (int)BitConverter.ToInt64(new byte[] { buffer[9], buffer[8], buffer[7], buffer[6], buffer[5], buffer[4], buffer[3], buffer[2] }, 0);
keyIndex = 10;
totalLength = dataLength + 14;
}
if (totalLength > length)
throw new Exception("The buffer length is small than the data length");
byte[] key = new byte[] { buffer[keyIndex], buffer[keyIndex + 1], buffer[keyIndex + 2], buffer[keyIndex + 3] };
int dataIndex = keyIndex + 4;
int count = 0;
for (int i = dataIndex; i < totalLength; i++)
{
buffer[i] = (byte)(buffer[i] ^ key[count % 4]);
count++;
}
return Encoding.ASCII.GetString(buffer, dataIndex, dataLength);
}
//function to create frames to send to client
/// <summary>
/// Enum for opcode types
/// </summary>
public enum EOpcodeType
{
/* Denotes a continuation code */
Fragment = 0,
/* Denotes a text code */
Text = 1,
/* Denotes a binary code */
Binary = 2,
/* Denotes a closed connection */
ClosedConnection = 8,
/* Denotes a ping*/
Ping = 9,
/* Denotes a pong */
Pong = 10
}
/// <summary>Gets an encoded websocket frame to send to a client from a string</summary>
/// <param name="Message">The message to encode into the frame</param>
/// <param name="Opcode">The opcode of the frame</param>
/// <returns>Byte array in form of a websocket frame</returns>
public static byte[] GetFrameFromString(string Message, EOpcodeType Opcode = EOpcodeType.Text)
{
byte[] response;
byte[] bytesRaw = Encoding.Default.GetBytes(Message);
byte[] frame = new byte[10];
int indexStartRawData = -1;
int length = bytesRaw.Length;
frame[0] = (byte)(128 + (int)Opcode);
if (length <= 125)
{
frame[1] = (byte)length;
indexStartRawData = 2;
}
else if (length >= 126 && length <= 65535)
{
frame[1] = (byte)126;
frame[2] = (byte)((length >> 8) & 255);
frame[3] = (byte)(length & 255);
indexStartRawData = 4;
}
else
{
frame[1] = (byte)127;
frame[2] = (byte)((length >> 56) & 255);
frame[3] = (byte)((length >> 48) & 255);
frame[4] = (byte)((length >> 40) & 255);
frame[5] = (byte)((length >> 32) & 255);
frame[6] = (byte)((length >> 24) & 255);
frame[7] = (byte)((length >> 16) & 255);
frame[8] = (byte)((length >> 8) & 255);
frame[9] = (byte)(length & 255);
indexStartRawData = 10;
}
response = new byte[indexStartRawData + length];
int i, reponseIdx = 0;
//Add the frame bytes to the reponse
for (i = 0; i < indexStartRawData; i++)
{
response[reponseIdx] = frame[i];
reponseIdx++;
}
//Add the data bytes to the response
for (i = 0; i < length; i++)
{
response[reponseIdx] = bytesRaw[i];
reponseIdx++;
}
return response;
}
}
}
Client html and javascript:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"_x000D_
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">_x000D_
<html xmlns="http://www.w3.org/1999/xhtml">_x000D_
<head>_x000D_
<script type="text/javascript">_x000D_
var socket = new WebSocket('ws://localhost:8080/websession');_x000D_
socket.onopen = function() {_x000D_
// alert('handshake successfully established. May send data now...');_x000D_
socket.send("Hi there from browser.");_x000D_
};_x000D_
socket.onmessage = function (evt) {_x000D_
//alert("About to receive data");_x000D_
var received_msg = evt.data;_x000D_
alert("Message received = "+received_msg);_x000D_
};_x000D_
socket.onclose = function() {_x000D_
alert('connection closed');_x000D_
};_x000D_
</script>_x000D_
</head>_x000D_
<body>_x000D_
</body>_x000D_
</html>
_x000D_
If it's a matter of just opening PDF to send some keys to it then why not try this
Sub Sample()
ActiveWorkbook.FollowHyperlink "C:\MyFile.pdf"
End Sub
I am assuming that you have some pdf reader installed.
An issue that DO arise in practical Android code is that comparing them with CharSequence.equals is valid but does not necessarily work as intended.
EditText t = (EditText )getView(R.id.myEditText); // Contains "OK"
Boolean isFalse = t.getText().equals("OK"); // will always return false.
Comparison should be made by
("OK").contentEquals(t.GetText());
And, just to throw it in the mix, is the oft-forgotten str.translate
which will work a lot faster than looping/regular expressions:
For Python 2:
from string import digits
s = 'abc123def456ghi789zero0'
res = s.translate(None, digits)
# 'abcdefghizero'
For Python 3:
from string import digits
s = 'abc123def456ghi789zero0'
remove_digits = str.maketrans('', '', digits)
res = s.translate(remove_digits)
# 'abcdefghizero'
This works for me, and in this case was a remote connection: Note: The port was IMPORTANT for me
$dsn = "sqlsrv:Server=server.dyndns.biz,1433;Database=DBNAME";
$conn = new PDO($dsn, "root", "P4sw0rd");
$conn->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$sql = "SELECT * FROM Table";
foreach ($conn->query($sql) as $row) {
print_r($row);
}
On apache page: http://hc.apache.org/httpcomponents-client-ga/tutorial/html/fundamentals.html
You have something like this:
URIBuilder builder = new URIBuilder();
builder.setScheme("http").setHost("www.google.com").setPath("/search")
.setParameter("q", "httpclient")
.setParameter("btnG", "Google Search")
.setParameter("aq", "f")
.setParameter("oq", "");
URI uri = builder.build();
HttpGet httpget = new HttpGet(uri);
System.out.println(httpget.getURI());
Suggestions:
true
would allow appending text into the File if it exists. println(...)
on your PrintWriter, writing your new text into the file.close()
of the PrintWriter should be in the try's finally block.e.g.,
PrintWriter pw = null;
try {
File file = new File("fubars.txt");
FileWriter fw = new FileWriter(file, true);
pw = new PrintWriter(fw);
pw.println("Fubars rule!");
} catch (IOException e) {
e.printStackTrace();
} finally {
if (pw != null) {
pw.close();
}
}
Easy, no?
public String getIMEI(Context context){
TelephonyManager mngr = (TelephonyManager) context.getSystemService(context.TELEPHONY_SERVICE);
String imei = mngr.getDeviceId();
return imei;
}
request.META.get('HTTP_AUTHORIZATION')
/python3.6/site-packages/rest_framework/authentication.py
you can get that from this file though...
var data = [{"country":"india","gender":"male","type":"lower","class":"X"},_x000D_
{"country":"china","gender":"female","type":"upper"},_x000D_
{"country":"india","gender":"female","type":"lower"},_x000D_
{"country":"india","gender":"female","type":"upper"}];_x000D_
var seq = ["country","type","gender","class"];_x000D_
var treeData = createHieArr(data,seq);_x000D_
console.log(treeData)_x000D_
function createHieArr(data,seq){_x000D_
var hieObj = createHieobj(data,seq,0),_x000D_
hieArr = convertToHieArr(hieObj,"Top Level");_x000D_
return [{"name": "Top Level", "parent": "null",_x000D_
"children" : hieArr}]_x000D_
function convertToHieArr(eachObj,parent){_x000D_
var arr = [];_x000D_
for(var i in eachObj){_x000D_
arr.push({"name":i,"parent":parent,"children":convertToHieArr(eachObj[i],i)})_x000D_
}_x000D_
return arr;_x000D_
}_x000D_
function createHieobj(data,seq,ind){_x000D_
var s = seq[ind];_x000D_
if(s == undefined){_x000D_
return [];_x000D_
}_x000D_
var childObj = {};_x000D_
for(var ele of data){_x000D_
if(ele[s] != undefined){_x000D_
if(childObj[ele[s]] == undefined){_x000D_
childObj[ele[s]] = [];_x000D_
}_x000D_
childObj[ele[s]].push(ele);_x000D_
}_x000D_
}_x000D_
ind = ind+1;_x000D_
for(var ch in childObj){_x000D_
childObj[ch] = createHieobj(childObj[ch],seq,ind)_x000D_
}_x000D_
return childObj;_x000D_
}_x000D_
}
_x000D_
public List<Model> getAllData(Pageable pageable){
List<Model> models= new ArrayList<>();
modelRepository.findAllByOrderByIdDesc(pageable).forEach(models::add);
return models;
}
not sure if it'll work in your scenario, but try adding the following to your web.config
under <system.web>
:
<system.web>
<customErrors mode="Off" />
...
</system.web>
works in my instance.
also see:
I recently ran into this problem and ended up using react-native-extended-stylesheet
You can set you rem
value and additional size conditions based on screen size. As per the docs:
// component
const styles = EStyleSheet.create({
text: {
fontSize: '1.5rem',
marginHorizontal: '2rem'
}
});
// app entry
let {height, width} = Dimensions.get('window');
EStyleSheet.build({
$rem: width > 340 ? 18 : 16
});
Checking for undefined-ness is not an accurate way of testing whether a key exists. What if the key exists but the value is actually undefined
?
var obj = { key: undefined };
obj["key"] !== undefined // false, but the key exists!
You should instead use the in
operator:
"key" in obj // true, regardless of the actual value
If you want to check if a key doesn't exist, remember to use parenthesis:
!("key" in obj) // true if "key" doesn't exist in object
!"key" in obj // Do not do this! It is equivalent to "false in obj"
Or, if you want to particularly test for properties of the object instance (and not inherited properties), use hasOwnProperty
:
obj.hasOwnProperty("key") // true
For performance comparison between the methods that are in
, hasOwnProperty
and key is undefined
, see this benchmark
If, like me, you had dynamically created buttons on your page, the
$("#your-bs-button's-id").on("click", function(event) {
or
$(".your-bs-button's-class").on("click", function(event) {
methods won't work because they only work on current elements (not future elements). Instead you need to reference a parent item that existed at the initial loading of the web page.
$(document).on("click", "#your-bs-button's-id", function(event) {
or more generally
$("#pre-existing-element-id").on("click", ".your-bs-button's-class", function(event) {
There are many other references to this issue on stack overflow here and here.
In my case,
-Xms1024M -Xmx1024M is work
-Xms1024M -Xmx2048M result: Could not reserve enough space for object heap
after use JVM 64 bit, it allows using 2GB RAM, because I am using win server 2012
please see the available max heap size for JVM 32 bit on several OSs
https://www.codementor.io/@suryab/does-32-bit-or-64-bit-jvm-matter-anymore-w0sa2rk6z
Parser Error Message: Could not load file or assembly 'Microsoft.ReportViewer.WebForms / Winforms, Version=12.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.
Microsoft ReportViewer runtime and SQL CLR Types for SQL Server 2014 is required to run and is missing from the server hosting Internet Information Services (IIS) or your application.
Install the following packages on the IIS server and then restart the system:
Download Microsoft ReportViewer runtime
Download Microsoft SQL CLR types for SQL Server 2014
Once restarted connect to Web service / Your app again and verify that the error has been resolved.
Or you cant follow this link to read more.
How about just using the built-in types like this:
config = {
"mysql": {
"user": "root",
"pass": "secret",
"tables": {
"users": "tb_users"
}
# etc
}
}
You'd access the values as follows:
config["mysql"]["tables"]["users"]
If you are willing to sacrifice the potential to compute expressions inside your config tree, you could use YAML and end up with a more readable config file like this:
mysql:
- user: root
- pass: secret
- tables:
- users: tb_users
and use a library like PyYAML to conventiently parse and access the config file
Rather than creating empty directories in source to exclude, you can supply the full destination path to the /XD switch to have the destination directories untouched
robocopy "%SOURCE_PATH%" "%DEST_PATH%" /MIR /XD "%DEST_PATH%"\hq04s2dba301
I'm using PHP7.1 running in my Raspberry Pi 3.
In the file /etc/apache2/mods-enabled/php7.1.conf
I added at the end:
AddType application/x-httpd-php .html .htm .png .jpg .gif
Your state with dictionary update some key without losing other value
state =
{
name:"mjpatel"
parsedFilter:
{
page:2,
perPage:4,
totalPages: 50,
}
}
Solution is below
let { parsedFilter } = this.state
this.setState({
parsedFilter: {
...this.state.parsedFilter,
page: 5
}
});
here update value for key "page" with value 5
You have atleast 2 options
Use perl:
perl -e '@T=localtime(time-86400);printf("%02d/%02d/%02d",$T[4]+1,$T[3],$T[5]+1900)'
Install GNU date (it's in the sh_utils
package if I remember correctly)
date --date yesterday "+%a %d/%m/%Y" | read dt
echo ${dt}
Not sure if this works, but you might be able to use a negative timezone. If you use a timezone that's 24 hours before your current timezone than you can simply use date
.
E.g. by naming the fields like
<input type="text" name="item[0][name]" />
<input type="text" name="item[0][email]" />
<input type="text" name="item[1][name]" />
<input type="text" name="item[1][email]" />
<input type="text" name="item[2][name]" />
<input type="text" name="item[2][email]" />
(which is also possible when adding elements via javascript)
The corresponding php script might look like
function show_Names($e)
{
return "The name is $e[name] and email is $e[email], thank you";
}
$c = array_map("show_Names", $_POST['item']);
print_r($c);
This has to do with having two buttons with the same ID in two different Activities, sometimes Android Studio can't find, You just have to give your button a new ID and re Build the Project
You can go without the loop:
find /path/to/dir -type f -exec /your/first/command \{\} \; -exec /your/second/command \{\} \;
HTH
Here's a simpler solution using what Akhil Sekharan has provided but with a little change.
var inputs = document.getElementsByTagName('input');
for (var i = 0; i < inputs.length; i += 1) {
if(parseInt(inputs[i].value)){
inputs[i].value = '';
}
}????
document.getElementById('total').value = total;
I have resolve the problem as below 1. Get the tag from your branch 2. Write below command
Example: git branch <Hotfix branch> <TAG>
git branch hotfix_4.4.3 v4.4.3
git checkout hotfix_4.4.3
or you can do with other command
git checkout -b <Hotfix branch> <TAG>
-b stands for creating new branch to local
once you ready with your hotfix branch, It's time to move that branch to github, you can do so by writing below command
git push --set-upstream origin hotfix_4.4.3
If you want to push commit on git repository, plz make sure you have merged all commit from other branches.
After merging if you are unable to push commit, Use the push command with -f
git push -f origin branch-name
Where origin is the name of your remote repo.
In ---- model:
Add use Jenssegers\Mongodb\Eloquent\Model as Eloquent;
Change the class ----- extends Model
to class ----- extends Eloquent
On StackOverflow, pressing the up-vote button is AJAX whereas typing in your question or answer and seeing it appear in the real-time preview window below it is JavaScript (JQuery).
This means that the difference between AJAX and Javascript is that AJAX allows you to communicate with the server without doing a page refresh (i.e. going to a new page) whereas JavaScript (JQuery) allows you to embed logic and behaviour on your page. Of course, with this logic you create AJAX as well.
Linux user here: I tried the convert
command-line utility (for PDF to PNG) and I was not happy with the results. I found this to be easier, with a better result:
pdftk file.pdf cat 3 output page3.pdf
GIMP
Resolution
from 100
to 300
or 600 pixel/in
GIMP
export as PNG (change file extension to .png)Edit:
Added picture, as requested in the Comments
. Convert command used:
convert -density 300 -trim struct2vec.pdf -quality 100 struct2vec.png
GIMP
: imported at 300 dpi (px/in); exported as PNG compression level 3.
I have not used GIMP on the command line (re: my comment, below).
Answer: NO
Here's Why ... I think a key reason for having stored procs in a database is that you're executing SP code in the same process as the SQL engine. This makes sense for database engines designed to work as a network connected service but the imperative for SQLite is much less given that it runs as a DLL in your application process rather than in a separate SQL engine process. So it makes more sense to implement all your business logic including what would have been SP code in the host language.
You can however extend SQLite with your own user defined functions in the host language (PHP, Python, Perl, C#, Javascript, Ruby etc). You can then use these custom functions as part of any SQLite select/update/insert/delete. I've done this in C# using DevArt's SQLite to implement password hashing.
@chepner make a good point that logger
is dedicated to logging messages.
I do need to mention that @Thomas Haratyk simply inquired why I didn't simply use echo
.
At the time, I didn't know about echo, as I'm learning shell-scripting
, but he was right.
My simple solution is now this:
#!/bin/bash
echo "This logs to where I want, but using echo" > /var/log/mycustomlog
The example above will overwrite the file after the >
So, I can append to that file with this:
#!/bin/bash
echo "I will just append to my custom log file" >> /var/log/customlog
Thanks guys!
/var/log/
, but I'm sure there are other good ideas out there. And since I didn't create a daemon, /var/log/
probably isn't the best place for my custom log file. (just saying)If you wish to use the
[Environment]::GetFolderPath("Desktop")
from within a cmd.exe
, you may do so (thanks to MS User Marian Pascalau on this thread)
set dkey=Desktop
set dump=powershell.exe -NoLogo -NonInteractive "Write-Host $([System.Environment]::GetFolderPath([System.Environment+SpecialFolder]::%dkey%))"
for /F %%i in ('%dump%') do set dir=%%i
echo Desktop directory is %dir%
It's a destructor. The function is guaranteed to be called when the object goes out of scope.
Note:
=""
is a blank cell) without a need to use data
twice. The solution for goolge-spreadhseet: =ARRAYFORMULA(SUM(IFERROR(IF(data="",0,1),1)))
. For excel ={SUM(IFERROR(IF(data="",0,1),1))}
should work (press Ctrl+Shift+Enter in the formula).The TextView resource id it needs is for a TextView layout file, so it won't be in the same activity.
You can create it by going to File > New > XML > XML Layout File, and enter the widget type, which is 'TextView' in the root tag field.
Source: https://www.kompulsa.com/the-simplest-way-to-implement-an-android-listview/
Pass Data using NSNotificationCenter
You can also pass data using NotificationCentre in swift 3.0 and NSNotificationCenter in swift 2.0.
Swift 2.0 Version
Pass info using userInfo which is a optional Dictionary of type [NSObject : AnyObject]?
let imageDataDict:[String: UIImage] = ["image": image]
// Post a notification
NSNotificationCenter.defaultCenter().postNotificationName(notificationName, object: nil, userInfo: imageDataDict)
// Register to receive notification in your class
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(self.showSpinningWheel(_:)), name: notificationName, object: nil)
// handle notification
func showSpinningWheel(notification: NSNotification) {
if let image = notification.userInfo?["image"] as? UIImage {
// do something with your image
}
}
Swift 3.0 Version
The userInfo now takes [AnyHashable:Any]? as an argument, which we provide as a dictionary literal in Swift
let imageDataDict:[String: UIImage] = ["image": image]
// post a notification
NotificationCenter.default.post(name: NSNotification.Name(rawValue: "notificationName"), object: nil, userInfo: imageDataDict)
// `default` is now a property, not a method call
// Register to receive notification in your class
NotificationCenter.default.addObserver(self, selector: #selector(self.showSpinningWheel(_:)), name: NSNotification.Name(rawValue: "notificationName"), object: nil)
// handle notification
func showSpinningWheel(_ notification: NSNotification) {
if let image = notification.userInfo?["image"] as? UIImage {
// do something with your image
}
}
Source pass data using NotificationCentre(swift 3.0) and NSNotificationCenter(swift 2.0)
but select-String doesn't seem to have this option.
Correct. PowerShell is not a clone of *nix shells' toolset.
However it is not hard to build something like it yourself:
$regexes = Get-Content RegexFile.txt |
Foreach-Object { new-object System.Text.RegularExpressions.Regex $_ }
$fileList | Get-Content | Where-Object {
foreach ($r in $regexes) {
if ($r.IsMatch($_)) {
$true
break
}
}
$false
}
runProguard has been renamed to minifyEnabled in version 0.14.0 (2014/10/31) or more in Gradle.
To fix this, you need to change runProguard to minifyEnabled in the build.gradle file of your project.
if my understanding of your initial JSON is correct, either of these solutions might help you loop through all ip ids & assign each one, a new object.
// initial JSON
var ips = {ipId1: {}, ipId2: {}};
// Solution1
Object.keys(ips).forEach(function(key) {
ips[key] = {name: 'value', anotherName: 'another value'};
});
// Solution 2
Object.keys(ips).forEach(function(key) {
Object.assign(ips[key],{name: 'value', anotherName: 'another value'});
});
To confirm:
console.log(JSON.stringify(ips, null, 2));
The above statement spits:
{
"ipId1": {
"name":"value",
"anotherName":"another value"
},
"ipId2": {
"name":"value",
"anotherName":"another value"
}
}
DECLARE @FromDate DATETIME
SET @FromDate = 'Jan 10 2016 12:00AM'
DECLARE @ToDate DATETIME
SET @ToDate = 'Jan 10 2017 12:00AM'
DECLARE @Dynamic_Qry nvarchar(Max) =''
SET @Dynamic_Qry='SELECT
(CONVERT(DATETIME,(SELECT
CASE WHEN ( ''IssueDate'' =''IssueDate'') THEN
EMP_DOCUMENT.ISSUE_DATE
WHEN (''IssueDate'' =''ExpiryDate'' ) THEN
EMP_DOCUMENT.EXPIRY_DATE ELSE EMP_DOCUMENT.APPROVED_ON END
CHEKDATE ), 101)
)FROM CR.EMP_DOCUMENT as EMP_DOCUMENT WHERE 1=1
AND (
CONVERT(DATETIME,(SELECT
CASE WHEN ( ''IssueDate'' =''IssueDate'') THEN
EMP_DOCUMENT.ISSUE_DATE
WHEN (''IssueDate'' =''ExpiryDate'' ) THEN EMP_DOCUMENT.EXPIRY_DATE
ELSE EMP_DOCUMENT.APPROVED_ON END
CHEKDATE ), 101)
) BETWEEN '''+ CONVERT(CHAR(10), @FromDate, 126) +''' AND '''+CONVERT(CHAR(10), @ToDate , 126
)
+'''
'
print @Dynamic_Qry
EXEC(@Dynamic_Qry)
You can start your session with
export HISTFILE=/dev/null ;history -d $(history 1)
then proceed with your sneaky doings. Setting the histfile to /dev/null
will be logged to the history file, yet this entry will be readily deleted and no traces (at least in the history file) will be shown.
Also, this is non-permanent.
DATE=`date "+%Y%m%d"`
DATE_WITH_TIME=`date "+%Y%m%d-%H%M%S"` #add %3N as we want millisecond too
A call to EntityManager.flush();
will force the data to be persist in the database immediately as EntityManager.persist()
will not (depending on how the EntityManager is configured : FlushModeType (AUTO or COMMIT) by default it's set to AUTO and a flush will be done automatically by if it's set to COMMIT the persitence of the data to the underlying database will be delayed when the transaction is commited).
You can also use MetaWhere gem to not mix up your code with SQL stuff:
Person.where((:name => "John") | (:lastname => "Smith"))
For new Xcode 11.xxx and Swift 5.xx, where the target it set to iOS 13+.
For the new project structure, AppDelegate does not have to do anything regarding rootViewController.
A new class is there to handle window(UIWindowScene) class -> 'SceneDelegate' file.
class SceneDelegate: UIResponder, UIWindowSceneDelegate {
var window: UIWindow?
func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
if let windowScene = scene as? UIWindowScene {
let window = UIWindow(windowScene: windowScene)
window.rootViewController = // Your RootViewController in here
self.window = window
window.makeKeyAndVisible()
}
}
The following is not exactly the same but similar, I was searching for a snippet to add a call to the interface method, but found this question, so I decided to add this snippet for those who were searching for it like me and found this question:
public class MyClass
{
//... class code goes here
public interface DataLoadFinishedListener {
public void onDataLoadFinishedListener(int data_type);
}
private DataLoadFinishedListener m_lDataLoadFinished;
public void setDataLoadFinishedListener(DataLoadFinishedListener dlf){
this.m_lDataLoadFinished = dlf;
}
private void someOtherMethodOfMyClass()
{
m_lDataLoadFinished.onDataLoadFinishedListener(1);
}
}
Usage is as follows:
myClassObj.setDataLoadFinishedListener(new MyClass.DataLoadFinishedListener() {
@Override
public void onDataLoadFinishedListener(int data_type) {
}
});
If you still get Permission denied
errors when you try to run your script in the docker's entrypoint, just try DO NOT use the shell form of the entrypoint:
Instead of:
ENTRYPOINT ./bin/watcher
write ENTRYPOINT ["./bin/watcher"]
:
https://docs.docker.com/engine/reference/builder/#entrypoint
I accomplished this by creating a ::before selector for the first inline element in the row, and making that selector a block with a top or bottom margin to separate rows a little bit.
.1st_item::before
{
content:"";
display:block;
margin-top: 5px;
}
.1st_item
{
color:orange;
font-weight: bold;
margin-right: 1em;
}
.2nd_item
{
color: blue;
}
With Python3x, you need to convert your string to raw bytes. You would have to encode the string as bytes. Over the network you need to send bytes and not characters. You are right that this would work for Python 2x since in Python 2x, socket.sendto on a socket takes a "plain" string and not bytes. Try this:
print("UDP target IP:", UDP_IP)
print("UDP target port:", UDP_PORT)
print("message:", MESSAGE)
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) # UDP
sock.sendto(bytes(MESSAGE, "utf-8"), (UDP_IP, UDP_PORT))
Using base64.b16encode
in python2 (its built-in)
>>> s = 'Hello world !!'
>>> h = base64.b16encode(s)
>>> ':'.join([h[i:i+2] for i in xrange(0, len(h), 2)]
'48:65:6C:6C:6F:20:77:6F:72:6C:64:20:21:21'
I cloned a repo from Github and went through every one of the suggestions here. After a lot of frustration, I realized that npm install
did not install any of the modules and my node_modules
folder was empty the whole time.
QUICK FIX:
1) delete your node_modules
folder
2) delete your package-lock.json
3) run npm install
An <a>
element is invalid HTML unless it has either an href
or name
attribute.
If you want it to render correctly as a link (ie underlined, hand pointer, etc), then it will only do so if it has a href
attribute.
Code like this is therefore sometimes used as a way of making a link, but without having to provide an actual URL in the href
attribute. The developer obviously wanted the link itself not to do anything, and this was the easiest way he knew.
He probably has some javascript event code elsewhere which is triggered when the link is clicked, and that will be what he wants to actually happen, but he wants it to look like a normal <a>
tag link.
Some developers use href='#'
for the same purpose, but this causes the browser to jump to the top of the page, which may not be wanted. And he couldn't simply leave the href blank, because href=''
is a link back to the current page (ie it causes a page refresh).
There are ways around these things. Using an empty bit of Javascript code in the href
is one of them, and although it isn't the best solution, it does work.
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_
What back-end? If JAVA then you can use REST with Java (JAX-RS) using Jersey.
On the Android side you can use this simple RestClient to work with that REST service.
For JSON <--> Object mapping on both sides (Android, Java back-end) you can use GSON.
Just figured it out in Oracle Java the environmental variable is called: JAVA_TOOL_OPTIONS
rather than JAVA_OPTS
If I remember correctly, and more often then not I do ... there is no END IF support in Transact-Sql. The BEGIN and END should do the job. Are you getting errors?
You just wrap your query in another one:
SELECT COUNT(*), SUM(Age)
FROM (
SELECT availables.bookdate AS Count, DATEDIFF(now(),availables.updated_at) as Age
FROM availables
INNER JOIN rooms
ON availables.room_id=rooms.id
WHERE availables.bookdate BETWEEN '2009-06-25' AND date_add('2009-06-25', INTERVAL 4 DAY) AND rooms.hostel_id = 5094
GROUP BY availables.bookdate
) AS tmp;
Any component added to the GridLayout will be resized to the same size as the largest component added. If you want a component to remain at its preferred size, then wrap that component in a JPanel and then the panel will be resized:
JPanel displayPanel = new JPanel(new GridLayout(4, 2));
JTextField titleText = new JTextField("title");
JPanel wrapper = new JPanel( new FlowLayout(0, 0, FlowLayout.LEADING) );
wrapper.add( titleText );
displayPanel.add(wrapper);
//displayPanel.add(titleText);
@override
Widget build(BuildContext context) {
return Theme(
data: ThemeData(brightness: Brightness.dark),
child: Scaffold()
....
)
}
Another way to do this would be to add before adding lines in your output, the following line :
output.writerow(dict(zip(dr.fieldnames, dr.fieldnames)))
The zip would return a list of doublet containing the same value. This list could be used to initiate a dictionary.
ALTER TABLE tbl_Country DROP COLUMN IsDeleted;
Here's a working example.
Note that the COLUMN
keyword is optional, as MySQL will accept just DROP IsDeleted
. Also, to drop multiple columns, you have to separate them by commas and include the DROP
for each one.
ALTER TABLE tbl_Country
DROP COLUMN IsDeleted,
DROP COLUMN CountryName;
This allows you to DROP
, ADD
and ALTER
multiple columns on the same table in the one statement. From the MySQL reference manual:
You can issue multiple
ADD
,ALTER
,DROP
, andCHANGE
clauses in a singleALTER TABLE
statement, separated by commas. This is a MySQL extension to standard SQL, which permits only one of each clause perALTER TABLE
statement.
Seems like you expected the query to return running totals, but it must have given you the same values for both partitions of AccountID
.
To obtain running totals with SUM() OVER ()
, you need to add an ORDER BY
sub-clause after PARTITION BY …
, like this:
SUM(Quantity) OVER (PARTITION BY AccountID ORDER BY ID)
But remember, not all database systems support ORDER BY
in the OVER
clause of a window aggregate function. (For instance, SQL Server didn't support it until the latest version, SQL Server 2012.)
VueJS can't pickup your changes to the state if you manipulate arrays like this.
As explained in Common Beginner Gotchas, you should use array methods like push, splice or whatever and never modify the indexes like this a[2] = 2
nor the .length property of an array.
new Vue({_x000D_
el: '#app',_x000D_
data: {_x000D_
f: 'DD-MM-YYYY',_x000D_
items: [_x000D_
"10-03-2017",_x000D_
"12-03-2017"_x000D_
]_x000D_
},_x000D_
methods: {_x000D_
_x000D_
cha: function(index, item, what, count) {_x000D_
console.log(item + " index > " + index);_x000D_
val = moment(this.items[index], this.f).add(count, what).format(this.f);_x000D_
_x000D_
this.items.$set(index, val)_x000D_
console.log("arr length: " + this.items.length);_x000D_
}_x000D_
}_x000D_
})
_x000D_
ul {_x000D_
list-style-type: none;_x000D_
}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/1.0.11/vue.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.10.6/moment.min.js"></script>_x000D_
<div id="app">_x000D_
<ul>_x000D_
<li v-for="(index, item) in items">_x000D_
<br><br>_x000D_
<button v-on:click="cha(index, item, 'day', -1)">_x000D_
- day</button> {{ item }}_x000D_
<button v-on:click="cha(index, item, 'day', 1)">_x000D_
+ day</button>_x000D_
<br><br>_x000D_
</li>_x000D_
</ul>_x000D_
</div>
_x000D_
This was marked as a duplicate to this question https://stackoverflow.com/questions/24401064/understanding-and-solving-the-diamond-problems-in-java
You need Java 8 to get a multiple inheritance problem, but it is still not a diamon problem as such.
interface A {
default void hi() { System.out.println("A"); }
}
interface B {
default void hi() { System.out.println("B"); }
}
class AB implements A, B { // won't compile
}
new AB().hi(); // won't compile.
As JB Nizet comments you can fix this my overriding.
class AB implements A, B {
public void hi() { A.super.hi(); }
}
However, you don't have a problem with
interface D extends A { }
interface E extends A { }
interface F extends A {
default void hi() { System.out.println("F"); }
}
class DE implement D, E { }
new DE().hi(); // prints A
class DEF implement D, E, F { }
new DEF().hi(); // prints F as it is closer in the heirarchy than A.
As of PowerShell version 3.0, the Get-Content cmdlet has a -Tail parameter that should help. See the technet library online help for Get-Content.
The following will display all 3 buttons on the same line provided there is enough horizontal space to display them:
<button type="submit" class="msgBtn" onClick="return false;" >Save</button>
<button type="submit" class="msgBtn2" onClick="return false;">Publish</button>
<button class="msgBtnBack">Back</button>
// Note the lack of unnecessary divs, floats, etc.
The only reason the buttons wouldn't display inline is if they have had display:block applied to them within your css.
This question actually is not JSP related, it is HTTP related. you can just do:
window.location = window.location;
Consider the fast FILTER method:
$('.rnd').filter('h2,h4')
returns:
[<h2 id=?"foo" class=?"rnd">?Second?</h2>?, <h4 id=?"bar" class=?"rnd">?Fourth?</h4>?]
so:
$('.rnd').filter('h2,h4').each(function() { /*...$(this)...*/ });
ldd
to list shared libraries for each executable.To find the answer for all executables in the "/bin" directory:
find /bin -type f -perm /a+x -exec ldd {} \; \
| grep so \
| sed -e '/^[^\t]/ d' \
| sed -e 's/\t//' \
| sed -e 's/.*=..//' \
| sed -e 's/ (0.*)//' \
| sort \
| uniq -c \
| sort -n
Change "/bin" above to "/" to search all directories.
Output (for just the /bin directory) will look something like this:
1 /lib64/libexpat.so.0
1 /lib64/libgcc_s.so.1
1 /lib64/libnsl.so.1
1 /lib64/libpcre.so.0
1 /lib64/libproc-3.2.7.so
1 /usr/lib64/libbeecrypt.so.6
1 /usr/lib64/libbz2.so.1
1 /usr/lib64/libelf.so.1
1 /usr/lib64/libpopt.so.0
1 /usr/lib64/librpm-4.4.so
1 /usr/lib64/librpmdb-4.4.so
1 /usr/lib64/librpmio-4.4.so
1 /usr/lib64/libsqlite3.so.0
1 /usr/lib64/libstdc++.so.6
1 /usr/lib64/libz.so.1
2 /lib64/libasound.so.2
2 /lib64/libblkid.so.1
2 /lib64/libdevmapper.so.1.02
2 /lib64/libpam_misc.so.0
2 /lib64/libpam.so.0
2 /lib64/libuuid.so.1
3 /lib64/libaudit.so.0
3 /lib64/libcrypt.so.1
3 /lib64/libdbus-1.so.3
4 /lib64/libresolv.so.2
4 /lib64/libtermcap.so.2
5 /lib64/libacl.so.1
5 /lib64/libattr.so.1
5 /lib64/libcap.so.1
6 /lib64/librt.so.1
7 /lib64/libm.so.6
9 /lib64/libpthread.so.0
13 /lib64/libselinux.so.1
13 /lib64/libsepol.so.1
22 /lib64/libdl.so.2
83 /lib64/ld-linux-x86-64.so.2
83 /lib64/libc.so.6
Edit - Removed "grep -P"
You can use a \r
(carriage return) to return the cursor to the beginning of the line:
printf("hello");
printf("\rbye");
This will print bye on the same line. It won't erase the existing characters though, and because bye is shorter than hello, you will end up with byelo. To erase it you can make your new print longer to overwrite the extra characters:
printf("hello");
printf("\rbye ");
Or, first erase it with a few spaces, then print your new string:
printf("hello");
printf("\r ");
printf("\rbye");
That will print hello, then go to the beginning of the line and overwrite it with spaces, then go back to the beginning again and print bye.
For anyone who may stumble across this old question ...
There is one thing that I think needs to be addressed.
~/.nanorc
is used to apply your user specific settings to nano, so if you are editing files that require the use of sudo nano
for permissions then this is not going to work.
When using sudo
your custom user configuration files will not be loaded when opening a program, as you are not running the program from your account so none of your configuration changes in ~/.nanorc
will be applied.
If this is the situation you find yourself in (wanting to run sudo nano
and use your own config settings) then you have three options :
sudo nano
/root/.nanorc
file/etc/nanorc
global config fileKeep in mind that /etc/nanorc
is a global configuration file and as such it affects all users, which may or may not be a problem depending on whether you have a multi-user system.
Also, user config files will override the global one, so if you were to edit /etc/nanorc
and ~/.nanorc
with different settings, when you run nano
it will load the settings from ~/.nanorc
but if you run sudo nano
then it will load the settings from /etc/nanorc
.
Same goes for /root/.nanorc
this will override /etc/nanorc
when running sudo nano
Using flags is probably the best option unless you have a lot of options.
If you turn things around, you can declare your base class abstract, and have descendants declare setUp and tearDown methods (without annotations) that are called in the base class' annotated setUp and tearDown methods.
To check for null SPECIFICALLY you would use this:
if (variable === null)
This test will ONLY pass for null
and will not pass for ""
, undefined
, false
, 0
, or NaN
.
Additionally, I've provided absolute checks for each "false-like" value (one that would return true for !variable
).
Note, for some of the absolute checks, you will need to implement use of the absolutely equals: ===
and typeof
.
I've created a JSFiddle here to show all of the individual tests working
Here is the output of each check:
Null Test:
if (variable === null)
- variable = ""; (false) typeof variable = string
- variable = null; (true) typeof variable = object
- variable = undefined; (false) typeof variable = undefined
- variable = false; (false) typeof variable = boolean
- variable = 0; (false) typeof variable = number
- variable = NaN; (false) typeof variable = number
Empty String Test:
if (variable === '')
- variable = ''; (true) typeof variable = string
- variable = null; (false) typeof variable = object
- variable = undefined; (false) typeof variable = undefined
- variable = false; (false) typeof variable = boolean
- variable = 0; (false) typeof variable = number
- variable = NaN; (false) typeof variable = number
Undefined Test:
if (typeof variable == "undefined")
-- or --
if (variable === undefined)
- variable = ''; (false) typeof variable = string
- variable = null; (false) typeof variable = object
- variable = undefined; (true) typeof variable = undefined
- variable = false; (false) typeof variable = boolean
- variable = 0; (false) typeof variable = number
- variable = NaN; (false) typeof variable = number
False Test:
if (variable === false)
- variable = ''; (false) typeof variable = string
- variable = null; (false) typeof variable = object
- variable = undefined; (false) typeof variable = undefined
- variable = false; (true) typeof variable = boolean
- variable = 0; (false) typeof variable = number
- variable = NaN; (false) typeof variable = number
Zero Test:
if (variable === 0)
- variable = ''; (false) typeof variable = string
- variable = null; (false) typeof variable = object
- variable = undefined; (false) typeof variable = undefined
- variable = false; (false) typeof variable = boolean
- variable = 0; (true) typeof variable = number
- variable = NaN; (false) typeof variable = number
NaN Test:
if (typeof variable == 'number' && !parseFloat(variable) && variable !== 0)
-- or --
if (isNaN(variable))
- variable = ''; (false) typeof variable = string
- variable = null; (false) typeof variable = object
- variable = undefined; (false) typeof variable = undefined
- variable = false; (false) typeof variable = boolean
- variable = 0; (false) typeof variable = number
- variable = NaN; (true) typeof variable = number
As you can see, it's a little more difficult to test against NaN
;
Version .NET Framework Visual Studio Important Features
C# 1.0 .NET Framework 1.0/1.1 Visual Studio .NET 2002
Basic features
C# 2.0 .NET Framework 2.0 Visual Studio 2005
Generics
Partial types
Anonymous methods
Iterators
Nullable types
Private setters (properties)
Method group conversions (delegates)
Covariance and Contra-variance
Static classes
C# 3.0 .NET Framework 3.0\3.5 Visual Studio 2008
Implicitly typed local variables
Object and collection initializers
Auto-Implemented properties
Anonymous types
Extension methods
Query expressions
Lambda expressions
Expression trees
Partial Methods
C# 4.0 .NET Framework 4.0 Visual Studio 2010
Dynamic binding (late binding)
Named and optional arguments
Generic co- and contravariance
Embedded interop types
C# 5.0 .NET Framework 4.5 Visual Studio 2012/2013
Async features
Caller information
C# 6.0 .NET Framework 4.6 Visual Studio 2013/2015
Expression Bodied Methods
Auto-property initializer
nameof Expression
Primary constructor
Await in catch block
Exception Filter
String Interpolation
C# 7.0 .NET Core 2.0 Visual Studio 2017
out variables
Tuples
Discards
Pattern Matching
Local functions
Generalized async return types
Numeric literal syntax improvements
C# 8.0 .NET Core 3.0 Visual Studio 2019
Readonly members
Default interface methods
Pattern matching enhancements:
Switch expressions
Property patterns
Tuple patterns
Positional patterns
Using declarations
Static local functions
Disposable ref structs
Nullable reference types
Asynchronous streams
Asynchronous disposable
Indices and ranges
Null-coalescing assignment
Unmanaged constructed types
Stackalloc in nested expressions
Enhancement of interpolated verbatim strings
PS C:\Users\joshua> $file = New-Object System.IO.FileInfo('file.type')
PS C:\Users\joshua> $file.BaseName, $file.Extension
file
.type
DateTime
inherits its equals
method from AbstractInstant
. It is implemented as such
public boolean equals(Object readableInstant) { // must be to fulfil ReadableInstant contract if (this == readableInstant) { return true; } if (readableInstant instanceof ReadableInstant == false) { return false; } ReadableInstant otherInstant = (ReadableInstant) readableInstant; return getMillis() == otherInstant.getMillis() && FieldUtils.equals(getChronology(), otherInstant.getChronology()); }
Notice the last line comparing chronology. It's possible your instances' chronologies are different.
Use calendar.monthrange
:
>>> from calendar import monthrange
>>> monthrange(2011, 2)
(1, 28)
Just to be clear, monthrange
supports leap years as well:
>>> from calendar import monthrange
>>> monthrange(2012, 2)
(2, 29)
As @mikhail-pyrev mentions in a comment:
First number is weekday of first day of the month, second number is number of days in said month.
def printProgressBar(value,label):
n_bar = 40 #size of progress bar
max = 100
j= value/max
sys.stdout.write('\r')
bar = '¦' * int(n_bar * j)
bar = bar + '-' * int(n_bar * (1-j))
sys.stdout.write(f"{label.ljust(10)} | [{bar:{n_bar}s}] {int(100 * j)}% ")
sys.stdout.flush()
call:
printProgressBar(30,"IP")
IP | [¦¦¦¦¦¦¦¦¦¦¦¦----------------------------] 30%
I resolved this issue by removing a URL reservation that matched my app directory in IIS. I had a similar (definitely not the same) issue as outlined in this article:
Following are few libraries to create PDF with Java:
I have used iText for genarating PDF's with a little bit of pain in the past.
Or you can try using FOP: FOP is an XSL formatter written in Java. It is used in conjunction with an XSLT transformation engine to format XML documents into PDF.
Suppose the dataframe df has 3 columns id1, name1, price1 and you wish to rename them to id2, name2, price2
val list = List("id2", "name2", "price2")
import spark.implicits._
val df2 = df.toDF(list:_*)
df2.columns.foreach(println)
I found this approach useful in many cases.
My simple solution is this
if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) ==
PackageManager.PERMISSION_GRANTED &&
ContextCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) ==
PackageManager.PERMISSION_GRANTED) {
googleMap.setMyLocationEnabled(true);
googleMap.getUiSettings().setMyLocationButtonEnabled(true);
} else {
Toast.makeText(this, R.string.error_permission_map, Toast.LENGTH_LONG).show();
}
or you can open permission dialog in else like this
} else {
ActivityCompat.requestPermissions(this, new String[] {
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.ACCESS_COARSE_LOCATION },
TAG_CODE_PERMISSION_LOCATION);
}
This did the trick for me:
var express = require('express'),
app = express();
app.use('/', express.static(__dirname + '/'));
app.listen(8080);