Short form:
.zip
is an archive format using, usually, the Deflate compression method. The .gz
gzip format is for single files, also using the Deflate compression method. Often gzip is used in combination with tar to make a compressed archive format, .tar.gz
. The zlib library provides Deflate compression and decompression code for use by zip, gzip, png (which uses the zlib wrapper on deflate data), and many other applications.
Long form:
The ZIP format was developed by Phil Katz as an open format with an open specification, where his implementation, PKZIP, was shareware. It is an archive format that stores files and their directory structure, where each file is individually compressed. The file type is .zip
. The files, as well as the directory structure, can optionally be encrypted.
The ZIP format supports several compression methods:
0 - The file is stored (no compression)
1 - The file is Shrunk
2 - The file is Reduced with compression factor 1
3 - The file is Reduced with compression factor 2
4 - The file is Reduced with compression factor 3
5 - The file is Reduced with compression factor 4
6 - The file is Imploded
7 - Reserved for Tokenizing compression algorithm
8 - The file is Deflated
9 - Enhanced Deflating using Deflate64(tm)
10 - PKWARE Data Compression Library Imploding (old IBM TERSE)
11 - Reserved by PKWARE
12 - File is compressed using BZIP2 algorithm
13 - Reserved by PKWARE
14 - LZMA
15 - Reserved by PKWARE
16 - IBM z/OS CMPSC Compression
17 - Reserved by PKWARE
18 - File is compressed using IBM TERSE (new)
19 - IBM LZ77 z Architecture
20 - deprecated (use method 93 for zstd)
93 - Zstandard (zstd) Compression
94 - MP3 Compression
95 - XZ Compression
96 - JPEG variant
97 - WavPack compressed data
98 - PPMd version I, Rev 1
99 - AE-x encryption marker (see APPENDIX E)
Methods 1 to 7 are historical and are not in use. Methods 9 through 98 are relatively recent additions and are in varying, small amounts of use. The only method in truly widespread use in the ZIP format is method 8, Deflate, and to some smaller extent method 0, which is no compression at all. Virtually every .zip
file that you will come across in the wild will use exclusively methods 8 and 0, likely just method 8. (Method 8 also has a means to effectively store the data with no compression and relatively little expansion, and Method 0 cannot be streamed whereas Method 8 can be.)
The ISO/IEC 21320-1:2015 standard for file containers is a restricted zip format, such as used in Java archive files (.jar), Office Open XML files (Microsoft Office .docx, .xlsx, .pptx), Office Document Format files (.odt, .ods, .odp), and EPUB files (.epub). That standard limits the compression methods to 0 and 8, as well as other constraints such as no encryption or signatures.
Around 1990, the Info-ZIP group wrote portable, free, open-source implementations of zip
and unzip
utilities, supporting compression with the Deflate format, and decompression of that and the earlier formats. This greatly expanded the use of the .zip
format.
In the early '90s, the gzip format was developed as a replacement for the Unix compress
utility, derived from the Deflate code in the Info-ZIP utilities. Unix compress
was designed to compress a single file or stream, appending a .Z
to the file name. compress
uses the LZW compression algorithm, which at the time was under patent and its free use was in dispute by the patent holders. Though some specific implementations of Deflate were patented by Phil Katz, the format was not, and so it was possible to write a Deflate implementation that did not infringe on any patents. That implementation has not been so challenged in the last 20+ years. The Unix gzip
utility was intended as a drop-in replacement for compress
, and in fact is able to decompress compress
-compressed data (assuming that you were able to parse that sentence). gzip
appends a .gz
to the file name. gzip
uses the Deflate compressed data format, which compresses quite a bit better than Unix compress
, has very fast decompression, and adds a CRC-32 as an integrity check for the data. The header format also permits the storage of more information than the compress
format allowed, such as the original file name and the file modification time.
Though compress
only compresses a single file, it was common to use the tar
utility to create an archive of files, their attributes, and their directory structure into a single .tar
file, and to then compress it with compress
to make a .tar.Z
file. In fact, the tar
utility had and still has an option to do the compression at the same time, instead of having to pipe the output of tar
to compress
. This all carried forward to the gzip format, and tar
has an option to compress directly to the .tar.gz
format. The tar.gz
format compresses better than the .zip
approach, since the compression of a .tar
can take advantage of redundancy across files, especially many small files. .tar.gz
is the most common archive format in use on Unix due to its very high portability, but there are more effective compression methods in use as well, so you will often see .tar.bz2
and .tar.xz
archives.
Unlike .tar
, .zip
has a central directory at the end, which provides a list of the contents. That and the separate compression provides random access to the individual entries in a .zip
file. A .tar
file would have to be decompressed and scanned from start to end in order to build a directory, which is how a .tar
file is listed.
Shortly after the introduction of gzip, around the mid-1990s, the same patent dispute called into question the free use of the .gif
image format, very widely used on bulletin boards and the World Wide Web (a new thing at the time). So a small group created the PNG losslessly compressed image format, with file type .png
, to replace .gif
. That format also uses the Deflate format for compression, which is applied after filters on the image data expose more of the redundancy. In order to promote widespread usage of the PNG format, two free code libraries were created. libpng and zlib. libpng handled all of the features of the PNG format, and zlib provided the compression and decompression code for use by libpng, as well as for other applications. zlib was adapted from the gzip
code.
All of the mentioned patents have since expired.
The zlib library supports Deflate compression and decompression, and three kinds of wrapping around the deflate streams. Those are: no wrapping at all ("raw" deflate), zlib wrapping, which is used in the PNG format data blocks, and gzip wrapping, to provide gzip routines for the programmer. The main difference between zlib and gzip wrapping is that the zlib wrapping is more compact, six bytes vs. a minimum of 18 bytes for gzip, and the integrity check, Adler-32, runs faster than the CRC-32 that gzip uses. Raw deflate is used by programs that read and write the .zip
format, which is another format that wraps around deflate compressed data.
zlib is now in wide use for data transmission and storage. For example, most HTTP transactions by servers and browsers compress and decompress the data using zlib, specifically HTTP header Content-Encoding: deflate
means deflate compression method wrapped inside the zlib data format.
Different implementations of deflate can result in different compressed output for the same input data, as evidenced by the existence of selectable compression levels that allow trading off compression effectiveness for CPU time. zlib and PKZIP are not the only implementations of deflate compression and decompression. Both the 7-Zip archiving utility and Google's zopfli library have the ability to use much more CPU time than zlib in order to squeeze out the last few bits possible when using the deflate format, reducing compressed sizes by a few percent as compared to zlib's highest compression level. The pigz utility, a parallel implementation of gzip, includes the option to use zlib (compression levels 1-9) or zopfli (compression level 11), and somewhat mitigates the time impact of using zopfli by splitting the compression of large files over multiple processors and cores.
Minizip does have an example programs to demonstrate its usage - the files are called minizip.c and miniunz.c.
Update: I had a few minutes so I whipped up this quick, bare bones example for you. It's very smelly C, and I wouldn't use it without major improvements. Hopefully it's enough to get you going for now.
// uzip.c - Simple example of using the minizip API.
// Do not use this code as is! It is educational only, and probably
// riddled with errors and leaks!
#include <stdio.h>
#include <string.h>
#include "unzip.h"
#define dir_delimter '/'
#define MAX_FILENAME 512
#define READ_SIZE 8192
int main( int argc, char **argv )
{
if ( argc < 2 )
{
printf( "usage:\n%s {file to unzip}\n", argv[ 0 ] );
return -1;
}
// Open the zip file
unzFile *zipfile = unzOpen( argv[ 1 ] );
if ( zipfile == NULL )
{
printf( "%s: not found\n" );
return -1;
}
// Get info about the zip file
unz_global_info global_info;
if ( unzGetGlobalInfo( zipfile, &global_info ) != UNZ_OK )
{
printf( "could not read file global info\n" );
unzClose( zipfile );
return -1;
}
// Buffer to hold data read from the zip file.
char read_buffer[ READ_SIZE ];
// Loop to extract all files
uLong i;
for ( i = 0; i < global_info.number_entry; ++i )
{
// Get info about current file.
unz_file_info file_info;
char filename[ MAX_FILENAME ];
if ( unzGetCurrentFileInfo(
zipfile,
&file_info,
filename,
MAX_FILENAME,
NULL, 0, NULL, 0 ) != UNZ_OK )
{
printf( "could not read file info\n" );
unzClose( zipfile );
return -1;
}
// Check if this entry is a directory or file.
const size_t filename_length = strlen( filename );
if ( filename[ filename_length-1 ] == dir_delimter )
{
// Entry is a directory, so create it.
printf( "dir:%s\n", filename );
mkdir( filename );
}
else
{
// Entry is a file, so extract it.
printf( "file:%s\n", filename );
if ( unzOpenCurrentFile( zipfile ) != UNZ_OK )
{
printf( "could not open file\n" );
unzClose( zipfile );
return -1;
}
// Open a file to write out the data.
FILE *out = fopen( filename, "wb" );
if ( out == NULL )
{
printf( "could not open destination file\n" );
unzCloseCurrentFile( zipfile );
unzClose( zipfile );
return -1;
}
int error = UNZ_OK;
do
{
error = unzReadCurrentFile( zipfile, read_buffer, READ_SIZE );
if ( error < 0 )
{
printf( "error %d\n", error );
unzCloseCurrentFile( zipfile );
unzClose( zipfile );
return -1;
}
// Write data to file.
if ( error > 0 )
{
fwrite( read_buffer, error, 1, out ); // You should check return of fwrite...
}
} while ( error > 0 );
fclose( out );
}
unzCloseCurrentFile( zipfile );
// Go the the next entry listed in the zip file.
if ( ( i+1 ) < global_info.number_entry )
{
if ( unzGoToNextFile( zipfile ) != UNZ_OK )
{
printf( "cound not read next file\n" );
unzClose( zipfile );
return -1;
}
}
}
unzClose( zipfile );
return 0;
}
I built and tested it with MinGW/MSYS on Windows like this:
contrib/minizip/$ gcc -I../.. -o unzip uzip.c unzip.c ioapi.c ../../libz.a
contrib/minizip/$ ./unzip.exe /j/zlib-125.zip
Maybe you can download zlib.h from https://dev.w3.org/Amaya/libpng/zlib/zlib.h, and put it in the directory to solve the problem.
Sounds like you need to install the devel package for zlib, probably want to do something like sudo apt-get install zlib1g-dev
(I don't use ubuntu so you'll want to double-check the package). Instead of using python-brew you might want to consider just compiling by hand, it's not very hard. Just download the source, and configure
, make
, make install
. You'll want to at least set --prefix
to somewhere, so it'll get installed where you want.
./configure --prefix=/opt/python2.7 + other options
make
make install
You can check what configuration options are available with ./configure --help
and see what your system python was compiled with by doing:
python -c "import sysconfig; print sysconfig.get_config_var('CONFIG_ARGS')"
The key is to make sure you have the development packages installed for your system, so that Python will be able to build the zlib
, sqlite3
, etc modules. The python docs cover the build process in more detail: http://docs.python.org/using/unix.html#building-python.
The error can be caused by access restrictions. Solution:
GRANT ALL PRIVILEGES ON DATABASE my_database TO my_user;
Another solution could be.. find the location of composer.phar file in your computer. If composer is installed successfully then it can be found in the installed directory.
Copy that location & instead of composer.phar in the command line, put the entire path there.
It also worked for me!
In some cases of which I can't remember why but $('#selectlist').val()
won't always return the correct item value, so I use $('#selectlist option:selected').val()
instead.
These answers all assume the file you are checking is on the server side. Unfortunately, there is no cast iron way to ensure that a file exists on the client side (e.g. if you are uploading the resume). Sure, you can do it in Javascript but you are still not going to be 100% sure on the server side.
The best way to handle this, in my opinion, is to assume that the user will actually select an appropriate file for upload, and then do whatever work you need to do to ensure the uploaded file is what you expect (hint - assume the user is trying to poison your system in every possible way with his/her input)
<ui:include>
Most basic way is <ui:include>
. The included content must be placed inside <ui:composition>
.
Kickoff example of the master page /page.xhtml
:
<!DOCTYPE html>
<html lang="en"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h:head>
<title>Include demo</title>
</h:head>
<h:body>
<h1>Master page</h1>
<p>Master page blah blah lorem ipsum</p>
<ui:include src="/WEB-INF/include.xhtml" />
</h:body>
</html>
The include page /WEB-INF/include.xhtml
(yes, this is the file in its entirety, any tags outside <ui:composition>
are unnecessary as they are ignored by Facelets anyway):
<ui:composition
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h2>Include page</h2>
<p>Include page blah blah lorem ipsum</p>
</ui:composition>
This needs to be opened by /page.xhtml
. Do note that you don't need to repeat <html>
, <h:head>
and <h:body>
inside the include file as that would otherwise result in invalid HTML.
You can use a dynamic EL expression in <ui:include src>
. See also How to ajax-refresh dynamic include content by navigation menu? (JSF SPA).
<ui:define>
/<ui:insert>
A more advanced way of including is templating. This includes basically the other way round. The master template page should use <ui:insert>
to declare places to insert defined template content. The template client page which is using the master template page should use <ui:define>
to define the template content which is to be inserted.
Master template page /WEB-INF/template.xhtml
(as a design hint: the header, menu and footer can in turn even be <ui:include>
files):
<!DOCTYPE html>
<html lang="en"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h:head>
<title><ui:insert name="title">Default title</ui:insert></title>
</h:head>
<h:body>
<div id="header">Header</div>
<div id="menu">Menu</div>
<div id="content"><ui:insert name="content">Default content</ui:insert></div>
<div id="footer">Footer</div>
</h:body>
</html>
Template client page /page.xhtml
(note the template
attribute; also here, this is the file in its entirety):
<ui:composition template="/WEB-INF/template.xhtml"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<ui:define name="title">
New page title here
</ui:define>
<ui:define name="content">
<h1>New content here</h1>
<p>Blah blah</p>
</ui:define>
</ui:composition>
This needs to be opened by /page.xhtml
. If there is no <ui:define>
, then the default content inside <ui:insert>
will be displayed instead, if any.
<ui:param>
You can pass parameters to <ui:include>
or <ui:composition template>
by <ui:param>
.
<ui:include ...>
<ui:param name="foo" value="#{bean.foo}" />
</ui:include>
<ui:composition template="...">
<ui:param name="foo" value="#{bean.foo}" />
...
</ui:composition >
Inside the include/template file, it'll be available as #{foo}
. In case you need to pass "many" parameters to <ui:include>
, then you'd better consider registering the include file as a tagfile, so that you can ultimately use it like so <my:tagname foo="#{bean.foo}">
. See also When to use <ui:include>, tag files, composite components and/or custom components?
You can even pass whole beans, methods and parameters via <ui:param>
. See also JSF 2: how to pass an action including an argument to be invoked to a Facelets sub view (using ui:include and ui:param)?
The files which aren't supposed to be publicly accessible by just entering/guessing its URL, need to be placed in /WEB-INF
folder, like as the include file and the template file in above example. See also Which XHTML files do I need to put in /WEB-INF and which not?
There doesn't need to be any markup (HTML code) outside <ui:composition>
and <ui:define>
. You can put any, but they will be ignored by Facelets. Putting markup in there is only useful for web designers. See also Is there a way to run a JSF page without building the whole project?
The HTML5 doctype is the recommended doctype these days, "in spite of" that it's a XHTML file. You should see XHTML as a language which allows you to produce HTML output using a XML based tool. See also Is it possible to use JSF+Facelets with HTML 4/5? and JavaServer Faces 2.2 and HTML5 support, why is XHTML still being used.
CSS/JS/image files can be included as dynamically relocatable/localized/versioned resources. See also How to reference CSS / JS / image resource in Facelets template?
You can put Facelets files in a reusable JAR file. See also Structure for multiple JSF projects with shared code.
For real world examples of advanced Facelets templating, check the src/main/webapp
folder of Java EE Kickoff App source code and OmniFaces showcase site source code.
I'm using db2 7.1 and SQuirrel. This is the only query that worked for me.
select * from SYSIBM.tables where table_schema = 'my_schema' and table_type = 'BASE TABLE';
the worked proposition for me is __call__
on class who create list of little numbers:
import itertools
class SmallNumbers:
def __init__(self, how_much):
self.how_much = int(how_much)
self.work_list = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
self.generated_list = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
start = 10
end = 100
for cmb in range(2, len(str(self.how_much)) + 1):
self.ListOfCombinations(is_upper_then=start, is_under_then=end, combinations=cmb)
start *= 10
end *= 10
def __call__(self, number, *args, **kwargs):
return self.generated_list[number]
def ListOfCombinations(self, is_upper_then, is_under_then, combinations):
multi_work_list = eval(str('self.work_list,') * combinations)
nbr = 0
for subset in itertools.product(*multi_work_list):
if is_upper_then <= nbr < is_under_then:
self.generated_list.append(''.join(subset))
if self.how_much == nbr:
break
nbr += 1
and to run it:
if __name__ == '__main__':
sm = SmallNumbers(56)
print(sm.generated_list)
print(sm.generated_list[34], sm.generated_list[27], sm.generated_list[10])
print('The Best', sm(15), sm(55), sm(49), sm(0))
result
['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36', '37', '38', '39', '40', '41', '42', '43', '44', '45', '46', '47', '48', '49', '50', '51', '52', '53', '54', '55', '56']
34 27 10
The Best 15 55 49 0
I solved it by adding the property data-date-language="it"
:
$(document).ready(function() {_x000D_
$('#TxtDaDataDoc_Val').datepicker();_x000D_
});
_x000D_
<meta charset="utf-8">_x000D_
<meta name="viewport" content="width=device-width, initial-scale=1">_x000D_
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">_x000D_
<link rel="stylesheet" href="/resources/demos/style.css">_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>_x000D_
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>_x000D_
_x000D_
<div class="form-group col-xs-2 col-sm-2 col-md-2">_x000D_
<div class="input-group input-append date form-group" _x000D_
id="TxtDaDataDoc" data-date-language="it">_x000D_
<input type="text" class="form-control" name="date" _x000D_
id="TxtDaDataDoc_Val" runat="server" />_x000D_
<span class="input-group-addon add-on">_x000D_
<span class="glyphicon glyphicon-calendar"></span>_x000D_
</span>_x000D_
</div>_x000D_
</div>
_x000D_
G'day,
Vim's regexp processing is not too brilliant. I've found that the regexp syntax for sed is about the right match for vim's capabilities.
I usually set the search highlighting on (:set hlsearch) and then play with the regexp after entering a slash to enter search mode.
Edit: Mark, that trick to minimise greedy matching is also covered in Dale Dougherty's excellent book "Sed & Awk" (sanitised Amazon link).
Chapter Three "Understanding Regular Expression Syntax" is an excellent intro to the more primitive regexp capabilities involved with sed and awk. Only a short read and highly recommended.
HTH
cheers,
Here's a full example of this kind of problem to solve
#include <bits/stdc++.h>
using namespace std;
int* solve(int brr[],int n)
{
sort(brr,brr+n);
return brr;
}
int main()
{
int n;
cin>>n;
int arr[n];
for(int i=0;i<n;i++)
{
cin>>arr[i];
}
int *a=solve(arr,n);
for(int i=0;i<n;i++)
{
cout<<a[i]<<endl;
}
return 0;
}
I believe that as of PHP 5.3, you can use const
outside of classes, as shown here in the second example:
http://www.php.net/manual/en/language.constants.syntax.php
<?php
// Works as of PHP 5.3.0
const CONSTANT = 'Hello World';
echo CONSTANT;
?>
When mapping a view model back to a domain model, it can be much cleaner to simply validate the source member list rather than the destination member list
Mapper.CreateMap<OrderModel, Orders>(MemberList.Source);
Now my mapping validation doesn't fail, requiring another Ignore()
, every time I add a property to my domain class.
Note: I have no affiliation with Ghostlab creators Vanamco whatsoever.
It was important to me to be able to debug Chrome-specific problems, so I set out to find something that could help me with that. I ended up happily throwing my money at Ghostlab 3. I can test Chrome and Safari mobile browsers as if I was viewing them on my desktop. It just gives me a LAN address to use for any device I’d like to debug. Each application using that address will appear in the list in Ghostlab.
Highly recommended.
function SingletonClass()
{
// demo variable
var names = [];
// instance of the singleton
this.singletonInstance = null;
// Get the instance of the SingletonClass
// If there is no instance in this.singletonInstance, instanciate one
var getInstance = function() {
if (!this.singletonInstance) {
// create a instance
this.singletonInstance = createInstance();
}
// return the instance of the singletonClass
return this.singletonInstance;
}
// function for the creation of the SingletonClass class
var createInstance = function() {
// public methodes
return {
add : function(name) {
names.push(name);
},
names : function() {
return names;
}
}
}
// wen constructed the getInstance is automaticly called and return the SingletonClass instance
return getInstance();
}
var obj1 = new SingletonClass();
obj1.add("Jim");
console.log(obj1.names());
// prints: ["Jim"]
var obj2 = new SingletonClass();
obj2.add("Ralph");
console.log(obj1.names());
// Ralph is added to the singleton instance and there for also acceseble by obj1
// prints: ["Jim", "Ralph"]
console.log(obj2.names());
// prints: ["Jim", "Ralph"]
obj1.add("Bart");
console.log(obj2.names());
// prints: ["Jim", "Ralph", "Bart"]
With the find
method, your callback is going to be passed the value of each element, like:
{
description: 'object1', id: 1
}
Thus, you want code like:
_.find(savedViews, function(o) {
return o.description === view;
})
function check_file_path(){
[ -f "$1" ] && return
[ -d "$1" ] && return
return 1
}
check_file_path $path_or_file
As this is specifically tagged for jQuery -
$("#myElement")[0].getBoundingClientRect();
or
$("#myElement").get(0).getBoundingClientRect();
(These are functionally identical, in some older browsers .get()
was slightly faster)
Note that if you try to get the values via jQuery calls then it will not take into account any css transform values, which can give unexpected results...
Note 2: In jQuery 3.0 it has changed to using the proper getBoundingClientRect()
calls for its own dimension calls (see the jQuery Core 3.0 Upgrade Guide) - which means that the other jQuery answers will finally always be correct - but only when using the new jQuery version - hence why it's called a breaking change...
You need to shift and mask the value, so for example...
If you want to read the first two bits, you just need to mask them off like so:
int value = input & 0x3;
If you want to offset it you need to shift right N bits and then mask off the bits you want:
int value = (intput >> 1) & 0x3;
To read three bits like you asked in your question.
int value = (input >> 1) & 0x7;
Contains
calls IndexOf
:
public bool Contains(string value)
{
return (this.IndexOf(value, StringComparison.Ordinal) >= 0);
}
Which calls CompareInfo.IndexOf
, which ultimately uses a CLR implementation.
If you want to see how strings are compared in the CLR this will show you (look for CaseInsensitiveCompHelper).
IndexOf(string)
has no options and Contains()
uses an Ordinal compare (a byte-by-byte comparison rather than trying to perform a smart compare, for example, e with é).
So IndexOf
will be marginally faster (in theory) as IndexOf
goes straight to a string search using FindNLSString from kernel32.dll (the power of reflector!).
Updated for .NET 4.0 - IndexOf no longer uses Ordinal Comparison and so Contains can be faster. See comment below.
Also could be that you're missing to link against a Binary Library, check Build Phases in your Targes add required libraries and then Product > Clean Product > Build
That must work too!
I found one way to access the shared folder without giving the username and password.
We need to change the share folder protect settings in the machine where the folder has been shared.
Go to Control Panel > Network and sharing center > Change advanced sharing settings > Enable Turn Off password protect sharing option.
By doing the above settings we can access the shared folder without any username/password.
Had the same issue when was trying to run the pyspark job triggered from the Airflow with remote spark.driver.host. The cause of the issue in my case was:
Exception: Java gateway process exited before sending the driver its port number
...
Exception in thread "main" java.lang.Exception: When running with master 'yarn' either HADOOP_CONF_DIR or YARN_CONF_DIR must be set in the environment.
Fixed by adding exports:
export HADOOP_CONF_DIR=/etc/hadoop/conf
And the same environment variable added in the pyspark script:
import os
os.environ["HADOOP_CONF_DIR"] = '/etc/hadoop/conf'
select s.SalesID from SalesTbl s
where cast(cast(s.SaleDate as date) as datetime) + cast(cast(s.SaleCreatedDate as time) as datetime)
between @FromDate and @ToDate
The two main problems with your code are:
else
clause with the loop to print "prime" only if the loop exits without breaking.A couple pretty significant inefficiencies:
textView2.setText(String.format("%.2f", result));
and
DecimalFormat form = new DecimalFormat("0.00");
textView2.setText(form.format(result) );
...cause "NumberFormatException" error in locale for Europe because it sets result as comma instead of point decimal - error occurs when textView is added to number in editText. Both solutions are working excellent in locale US and UK.
As long as you specify a width on the element, it should wrap itself without needing anything else.
I was solving same problem recently. I was designing a write cmdlet for my Subtitle module. I had six different user stories:
I end up in the big frustration because I though that 4 parameters will be enough. Like most of the times, the frustration was pointless because it was my fault. I didn't know enough about parameter sets.
After some research in documentation, I realized where is the problem. With knowledge how the parameter sets should be used, I developed a general and simple approach how to solve this problem. A pencil and a sheet of paper is required but a spreadsheet editor is better:
Example:
The practical example could be seen over here.
BTW: The parameter uniqueness within parameter sets is the reason why the ParameterSetName
property doesn't support [String[]]
. It doesn't really make any sense.
by splitting with newlines.
for line in wallop_of_a_string_with_many_lines.split('\n'):
#do_something..
if you iterate over a string, you are iterating char by char in that string, not by line.
>>>string = 'abc'
>>>for line in string:
print line
a
b
c
ul{list-style-type:none;}
Just set the style of unordered list is none.
I found the next command
mvn dependency:copy-dependencies -Dclassifier=sources
here maven.apache.org
If you don't need to display exact result "running" / "not runnuning", you could simply:
ps notepad -ErrorAction SilentlyContinue | kill -PassThru
If the process was not running, you'll get no results. If it was running, you'll receive get-process
output, and the process will be stopped.
If you intend on having multiple hosts/database connections, the ~/.pgpass file is the way to go.
Steps:
vim ~/.pgpass
or similar. Input your information in the following format:
hostname:port:database:username:password
Do not add string quotes around your field values. You can also use * as a wildcard for your port/database fields.chmod 0600 ~/.pgpass
in order for it to not be silently ignored by psql.alias postygresy='psql --host hostname database_name -U username'
The values should match those that you inputted to the ~/.pgpass file.. ~/.bashrc
or similar. Note that if you have an export PGPASSWORD='' variable set, it will take precedence over the file.
Your script contains errors as well, for example if you have dos2unix installed your install works but if you don't like I did then it will fail with dependency issues.
I found this by accident as I was making a script file of this to give to my friend who is new to Linux and because I made the scripts on windows I directed him to install it, at the time I did not have dos2unix installed thus I got errors.
here is a copy of the script I made for your solution but have dos2unix installed.
#!/bin/sh
echo "deb http://ftp.debian.org/debian sid main" >> /etc/apt/sources.list
apt-get update
apt-get -t sid install libc6 libc6-dev libc6-dbg
echo "Please remember to hash out sid main from your sources list. /etc/apt/sources.list"
this script has been tested on 3 machines with no errors.
Split your date into year, month, and day components then use Date:
var d = new Date(year, month, day);
d.setMonth(d.getMonth() + 8);
Date will take care of fixing the year.
You can also use python's requests library instead.
import requests
url = 'http://www.quandl.com/api/v1/datasets/FRED/GDP.json'
response = requests.get(url)
dict = response.json()
Now you can manipulate the "dict" like a python dictionary.
I'm facing exactly same error when I'm trying to clone a repository on a brand new machine. I'm using Git bash as my Git client. When I ran Git's command to clone a repository it was not prompting me for user id and password which will be used for authentication. It was a fresh machine where not a single credential was cached by Windows credential manager.
As a last resort, I manually added my credentials in credentials manager.
Go to > Control Panel\User Accounts\Credential Manager
> Windows Credentials
Click Add a Windows credential
link and then Supply the details as shown in the form below and you're done:
I had put the details as below:
Internet or network address: <gitRepoServerNameOrIPAddress>
User Name: MyCompanysDomainName\MyUserName
Password: MyPassword
Next time you run any Git command targeting a repository set up on above address this manually created credential will be used.
It is also important if you have a git command line you close it and reopen it for changes to be applied.
One more example how SelectMany + Select can be used in order to accumulate sub array objects data.
Suppose we have users with they phones:
class Phone {
public string BasePart = "555-xxx-xxx";
}
class User {
public string Name = "Xxxxx";
public List<Phone> Phones;
}
Now we need to select all phones' BaseParts of all users:
var usersArray = new List<User>(); // array of arrays
List<string> allBaseParts = usersArray.SelectMany(ua => ua.Phones).Select(p => p.BasePart).ToList();
You can try this quick code
public static void cancelNotification(Context ctx, int notifyId) {
String ns = Context.NOTIFICATION_SERVICE;
NotificationManager nMgr = (NotificationManager) ctx.getSystemService(ns);
nMgr.cancel(notifyId);
}
Python-3.x:
"aabc".count("a")
str.count(sub[, start[, end]])
Return the number of non-overlapping occurrences of substring sub in the range [start, end]. Optional arguments start and end are interpreted as in slice notation.
Assuming you're asking about the common "index hinting" feature found in many databases, PostgreSQL doesn't provide such a feature. This was a conscious decision made by the PostgreSQL team. A good overview of why and what you can do instead can be found here. The reasons are basically that it's a performance hack that tends to cause more problems later down the line as your data changes, whereas PostgreSQL's optimizer can re-evaluate the plan based on the statistics. In other words, what might be a good query plan today probably won't be a good query plan for all time, and index hints force a particular query plan for all time.
As a very blunt hammer, useful for testing, you can use the enable_seqscan
and enable_indexscan
parameters. See:
These are not suitable for ongoing production use. If you have issues with query plan choice, you should see the documentation for tracking down query performance issues. Don't just set enable_
params and walk away.
Unless you have a very good reason for using the index, Postgres may be making the correct choice. Why?
See also this old newsgroup post.
When it can be the same header for all requests or you dispose the client after each request you can use the DefaultRequestHeaders.Add
option:
client.DefaultRequestHeaders.Add("apikey","xxxxxxxxx");
You need a dict
:
my_dict = {'cheese': 'cake'}
Example code (from the docs):
>>> a = dict(one=1, two=2, three=3)
>>> b = {'one': 1, 'two': 2, 'three': 3}
>>> c = dict(zip(['one', 'two', 'three'], [1, 2, 3]))
>>> d = dict([('two', 2), ('one', 1), ('three', 3)])
>>> e = dict({'three': 3, 'one': 1, 'two': 2})
>>> a == b == c == d == e
True
You can read more about dictionaries here.
[Javascript] After a bit of jiggery pokery, this worked for me:
let dateEvents = (
{
'Count': 2,
'Items': [
{
'LastPostedDateTime': {
"S": "10/16/2019 11:04:59"
}
},
{
'LastPostedDateTime': {
"S": "10/30/2019 21:41:39"
}
}
],
}
);
console.log('dateEvents', dateEvents);
The problem I needed to solve was that I might have any number of events and they would all have the same name: LastPostedDateTime all that is different is the date and time.
I found the error: I have a library that it was built using jdk 1.6. The Spring main controller and components are in this library. And how I use jdk 1.7, It does not find the classes built in 1.6.
The solution was built all using "compiler compliance level: 1.7" and "Generated .class files compatibility: 1.6", "Source compatibility: 1.6".
I setup this option in Eclipse: Preferences\Java\Compiler.
Thanks everybody.
I don't think there is a function that does all that in a single call. However you can find the Gaussian probability density function in scipy.stats
.
So the simplest way I could come up with is:
import numpy as np
import matplotlib.pyplot as plt
from scipy.stats import norm
# Plot between -10 and 10 with .001 steps.
x_axis = np.arange(-10, 10, 0.001)
# Mean = 0, SD = 2.
plt.plot(x_axis, norm.pdf(x_axis,0,2))
plt.show()
Sources:
After a fight with this issue, I finally end up with this workaround:
/**
* Dismiss {@link ProgressDialog} with check for nullability and SDK version
*
* @param dialog instance of {@link ProgressDialog} to dismiss
*/
public void dismissProgressDialog(ProgressDialog dialog) {
if (dialog != null && dialog.isShowing()) {
//get the Context object that was used to great the dialog
Context context = ((ContextWrapper) dialog.getContext()).getBaseContext();
// if the Context used here was an activity AND it hasn't been finished or destroyed
// then dismiss it
if (context instanceof Activity) {
// Api >=17
if (!((Activity) context).isFinishing() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
if (!((Activity) context).isDestroyed()) {
dismissWithExceptionHandling(dialog);
}
} else {
// Api < 17. Unfortunately cannot check for isDestroyed()
dismissWithExceptionHandling(dialog);
}
}
} else
// if the Context used wasn't an Activity, then dismiss it too
dismissWithExceptionHandling(dialog);
}
dialog = null;
}
}
/**
* Dismiss {@link ProgressDialog} with try catch
*
* @param dialog instance of {@link ProgressDialog} to dismiss
*/
public void dismissWithExceptionHandling(ProgressDialog dialog) {
try {
dialog.dismiss();
} catch (final IllegalArgumentException e) {
// Do nothing.
} catch (final Exception e) {
// Do nothing.
} finally {
dialog = null;
}
}
Sometimes, good exception handling works well if there wasn't a better solution for this issue.
Not really. Your padding is (probably) being applied to the list item, so will only affect the actual content within the list item.
Using a combination of background and padding styles can create something that looks similar e.g.
li {
background: url(images/bullet.gif) no-repeat left top; /* <-- change `left` & `top` too for extra control */
padding: 3px 0px 3px 10px;
/* reset styles (optional): */
list-style: none;
margin: 0;
}
You might be looking to add styling to the parent list container (ul) to position your bulleted list items, this A List Apart article has a good starting reference.
This can be done in 2 ways:
if (str.match(/abc|def/)) {
...
}
if (/abc|def/.test(str)) {
....
}
As josh527
said, handler.removeCallbacksAndMessages(null);
can work.
But why?
If you have a look at the source code, you can understand it more clearly.
There are 3 type of method to remove callbacks/messages from handler(the MessageQueue):
Handler.java (leave some overload method)
/**
* Remove any pending posts of Runnable <var>r</var> with Object
* <var>token</var> that are in the message queue. If <var>token</var> is null,
* all callbacks will be removed.
*/
public final void removeCallbacks(Runnable r, Object token)
{
mQueue.removeMessages(this, r, token);
}
/**
* Remove any pending posts of messages with code 'what' and whose obj is
* 'object' that are in the message queue. If <var>object</var> is null,
* all messages will be removed.
*/
public final void removeMessages(int what, Object object) {
mQueue.removeMessages(this, what, object);
}
/**
* Remove any pending posts of callbacks and sent messages whose
* <var>obj</var> is <var>token</var>. If <var>token</var> is null,
* all callbacks and messages will be removed.
*/
public final void removeCallbacksAndMessages(Object token) {
mQueue.removeCallbacksAndMessages(this, token);
}
MessageQueue.java do the real work:
void removeMessages(Handler h, int what, Object object) {
if (h == null) {
return;
}
synchronized (this) {
Message p = mMessages;
// Remove all messages at front.
while (p != null && p.target == h && p.what == what
&& (object == null || p.obj == object)) {
Message n = p.next;
mMessages = n;
p.recycleUnchecked();
p = n;
}
// Remove all messages after front.
while (p != null) {
Message n = p.next;
if (n != null) {
if (n.target == h && n.what == what
&& (object == null || n.obj == object)) {
Message nn = n.next;
n.recycleUnchecked();
p.next = nn;
continue;
}
}
p = n;
}
}
}
void removeMessages(Handler h, Runnable r, Object object) {
if (h == null || r == null) {
return;
}
synchronized (this) {
Message p = mMessages;
// Remove all messages at front.
while (p != null && p.target == h && p.callback == r
&& (object == null || p.obj == object)) {
Message n = p.next;
mMessages = n;
p.recycleUnchecked();
p = n;
}
// Remove all messages after front.
while (p != null) {
Message n = p.next;
if (n != null) {
if (n.target == h && n.callback == r
&& (object == null || n.obj == object)) {
Message nn = n.next;
n.recycleUnchecked();
p.next = nn;
continue;
}
}
p = n;
}
}
}
void removeCallbacksAndMessages(Handler h, Object object) {
if (h == null) {
return;
}
synchronized (this) {
Message p = mMessages;
// Remove all messages at front.
while (p != null && p.target == h
&& (object == null || p.obj == object)) {
Message n = p.next;
mMessages = n;
p.recycleUnchecked();
p = n;
}
// Remove all messages after front.
while (p != null) {
Message n = p.next;
if (n != null) {
if (n.target == h && (object == null || n.obj == object)) {
Message nn = n.next;
n.recycleUnchecked();
p.next = nn;
continue;
}
}
p = n;
}
}
}
You can launch the "wc.exe" executable (comes with UnixUtils and does not need installation) run as an external process. It supports different line count methods (like unix vs mac vs windows).
Do you mean:
var d = new Date();
var curr_hour = d.getHours();
var curr_min = d.getMinutes();
If you're on rails
which utilizes Erubis — the coolest way to do it is
<%== @str >
Note the double equal sign. See related question on SO for more info.
I am reading data very quickly using the new arrow
package. It appears to be in a fairly early stage.
Specifically, I am using the parquet columnar format. This converts back to a data.frame
in R, but you can get even deeper speedups if you do not. This format is convenient as it can be used from Python as well.
My main use case for this is on a fairly restrained RShiny server. For these reasons, I prefer to keep data attached to the Apps (i.e., out of SQL), and therefore require small file size as well as speed.
This linked article provides benchmarking and a good overview. I have quoted some interesting points below.
https://ursalabs.org/blog/2019-10-columnar-perf/
That is, the Parquet file is half as big as even the gzipped CSV. One of the reasons that the Parquet file is so small is because of dictionary-encoding (also called “dictionary compression”). Dictionary compression can yield substantially better compression than using a general purpose bytes compressor like LZ4 or ZSTD (which are used in the FST format). Parquet was designed to produce very small files that are fast to read.
When controlling by output type (e.g. comparing all R data.frame outputs with each other) we see the the performance of Parquet, Feather, and FST falls within a relatively small margin of each other. The same is true of the pandas.DataFrame outputs. data.table::fread is impressively competitive with the 1.5 GB file size but lags the others on the 2.5 GB CSV.
I performed some independent benchmarking on a simulated dataset of 1,000,000 rows. Basically I shuffled a bunch of things around to attempt to challenge the compression. Also I added a short text field of random words and two simulated factors.
library(dplyr)
library(tibble)
library(OpenRepGrid)
n <- 1000000
set.seed(1234)
some_levels1 <- sapply(1:10, function(x) paste(LETTERS[sample(1:26, size = sample(3:8, 1), replace = TRUE)], collapse = ""))
some_levels2 <- sapply(1:65, function(x) paste(LETTERS[sample(1:26, size = sample(5:16, 1), replace = TRUE)], collapse = ""))
test_data <- mtcars %>%
rownames_to_column() %>%
sample_n(n, replace = TRUE) %>%
mutate_all(~ sample(., length(.))) %>%
mutate(factor1 = sample(some_levels1, n, replace = TRUE),
factor2 = sample(some_levels2, n, replace = TRUE),
text = randomSentences(n, sample(3:8, n, replace = TRUE))
)
Writing the data is easy.
library(arrow)
write_parquet(test_data , "test_data.parquet")
# you can also mess with the compression
write_parquet(test_data, "test_data2.parquet", compress = "gzip", compression_level = 9)
Reading the data is also easy.
read_parquet("test_data.parquet")
# this option will result in lightning fast reads, but in a different format.
read_parquet("test_data2.parquet", as_data_frame = FALSE)
I tested reading this data against a few of the competing options, and did get slightly different results than with the article above, which is expected.
This file is nowhere near as large as the benchmark article, so maybe that is the difference.
as_data_frame = FALSE
)arrow
)feather
)For this particular file, fread
is actually very fast. I like the small file size from the highly compressed parquet2
test. I may invest the time to work with the native data format rather than a data.frame
if I really need the speed up.
Here fst
is also a great choice. I would either use the highly compressed fst
format or the highly compressed parquet
depending on if I needed the speed or file size trade off.
The most straight forward answer to this question is: You can't.
Youtube doesn't output their video's in the right format, thus they can't be embedded in a
<video/>
element.
There are a few solutions posted using javascript, but don't trust on those, they all need a fallback, and won't work cross-browser.
Here is how I do it on iOS 9 in Swift -
import UIKit
class CustomView : UIView {
init() {
super.init(frame: UIScreen.mainScreen().bounds);
//for debug validation
self.backgroundColor = UIColor.blueColor();
print("My Custom Init");
return;
}
required init?(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented"); }
}
Here is a full project with example:
Unzip the github project to a folder. Open Android Studio. Go to File -> New -> Import Project. Then choose the specific project you want to import and then click Next->Finish. It will build the Gradle automatically and'll be ready for you to use.
P.S: In some versions of Android Studio a certain error occurs-
error:package android.support.v4.app does not exist.
To fix it go to Gradle Scripts->build.gradle(Module:app) and the add the dependecies:
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.3'
}
Enjoy working in Android Studio
Use this:
public void ShowAllPostBackData()
{
if (IsPostBack)
{
string[] keys = Request.Form.AllKeys;
Literal ctlAllPostbackData = new Literal();
ctlAllPostbackData.Text = "<div class='well well-lg' style='border:1px solid black;z-index:99999;position:absolute;'><h3>All postback data:</h3><br />";
for (int i = 0; i < keys.Length; i++)
{
ctlAllPostbackData.Text += "<b>" + keys[i] + "</b>: " + Request[keys[i]] + "<br />";
}
ctlAllPostbackData.Text += "</div>";
this.Controls.Add(ctlAllPostbackData);
}
}
a number of answers; check out this one also; make sure that no instance of mysql is running, always brought by not ending your sessions well. get the super user rights with
sudo su
and type your password when prompted to (remember nothing appears when you type your password, so, don't worry just type it and press enter). Next go to your terminal and stop all mysql instances:
/etc/init.d/mysql stop
after that, go and restart the mysql services (or restart xampp as a whole). This solved my problem. All the best.
In your code you aren't using jquery, so, if you want to use it, yo need something like...
$('#foo').css({'background-color' : 'red', 'color' : 'white', 'font-size' : '44px'});
Other way, if you are not using jquery, you need to do ...
document.getElementById('foo').style = 'background-color: red; color: white; font-size: 44px';
Here the code to use your app.js
input specifies file name
res.download(__dirname+'/'+input);
You can also debug tomcat using the community edition (Unlike what is said above).
Start tomcat in debug mode, for example like this: .\catalina.bat jpda run
In intellij: Run > Edit Configurations > +
Select "Remote" Name the connection: "somename" Set "Port:" 8000 (default 5005)
Select Run > Debug "somename"
Thanks to marc_s's answer I solved my original problem - inspired to take it a step further and post one approach to transforming a whole table at a time - tsql script to generate the alter column statements:
DECLARE @tableName VARCHAR(MAX)
SET @tableName = 'affiliate'
--EXEC sp_columns @tableName
SELECT 'Alter table ' + @tableName + ' alter column ' + col.name
+ CASE ( col.user_type_id )
WHEN 231
THEN ' nvarchar(' + CAST(col.max_length / 2 AS VARCHAR) + ') '
END + 'collate Latin1_General_CI_AS ' + CASE ( col.is_nullable )
WHEN 0 THEN ' not null'
WHEN 1 THEN ' null'
END
FROM sys.columns col
WHERE object_id = OBJECT_ID(@tableName)
gets: ALTER TABLE Affiliate ALTER COLUMN myTable NVARCHAR(4000) COLLATE Latin1_General_CI_AS NOT NULL
I'll admit to being puzzled by the need to col.max_length / 2 -
If you're using 0
and an empty string ''
and null
to designate undefined you've got a data problem. Just update the columns and fix your schema.
UPDATE pt.incentive_channel
SET pt.incentive_marketing = NULL
WHERE pt.incentive_marketing = '';
UPDATE pt.incentive_channel
SET pt.incentive_advertising = NULL
WHERE pt.incentive_marketing = '';
UPDATE pt.incentive_channel
SET pt.incentive_channel = NULL
WHERE pt.incentive_marketing = '';
This will make joining and selecting substantially easier moving forward.
inspired by this question I have written a blog along with the code snippet here. Below are some of the excerpts from the blog
SelectedItem – Selected Item helps to bind the actual value from the DataSource which will be displayed. This is of type object and we can bind any type derived from object type with this property. Since we will be using the MVVM binding for our combo boxes in that case this is the property which we can use to notify VM that item has been selected.
SelectedValue and SelectedValuePath – These are the two most confusing and misinterpreted properties for combobox. But these properties come to rescue when we want to bind our combobox with the value from already created object. Please check my last scenario in the following list to get a brief idea about the properties.
You did not include jquery library. In jsfiddle its already there. Just include this line in your head section.
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js">
jQuery 1.4 has a new feature for doing this, and it rules. I've forgotten what it's called, but you use it like this:
$("a.directions-link").attr("href", function(i, href) {
return href + '?q=testing';
});
That loops over all the elements too, so no need for $.each
My extensions to the code.
Source: https://code.google.com/p/gishu-util/source/browse/#git%2FWPF%2FUtilities
Explanatory blog post : http://madcoderspeak.blogspot.com/2010/04/wpf-find-child-control-of-specific-type.html
Try this:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
AlertDialog OptionDialog = builder.create();
background.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
SetBackground();
OptionDialog .dismiss();
}
});
Open Terminal. Execute this command:
defaults write com.apple.desktopservices DSDontWriteNetworkStores true
Either restart the computer or log out and back in to the user account.
for more informations:
To get the last element, simply use the size of the list as the second parameter. So for example, if you have 35 files, and you want the last five, you would do:
dataList.subList(30, 35);
A guaranteed safe way to do this is:
dataList.subList(Math.max(0, first), Math.min(dataList.size(), last) );
Select the lines you want to reformat (indenting), then hit Alt+Shift+F. Only the selected lines will be reformatted.
According the to Windows Dev Center WIN32_LEAN_AND_MEAN excludes APIs such as Cryptography, DDE, RPC, Shell, and Windows Sockets.
LabelEncoding worked for me (basically you've to encode your data feature-wise) (mydata is a 2d array of string datatype):
myData=np.genfromtxt(filecsv, delimiter=",", dtype ="|a20" ,skip_header=1);
from sklearn import preprocessing
le = preprocessing.LabelEncoder()
for i in range(*NUMBER OF FEATURES*):
myData[:,i] = le.fit_transform(myData[:,i])
The rvest
along with xml2
is another popular package for parsing html web pages.
library(rvest)
theurl <- "http://en.wikipedia.org/wiki/Brazil_national_football_team"
file<-read_html(theurl)
tables<-html_nodes(file, "table")
table1 <- html_table(tables[4], fill = TRUE)
The syntax is easier to use than the xml
package and for most web pages the package provides all of the options ones needs.
Use the WINAPI CreateDirectory()
function to create a folder.
You can use this function without checking if the directory already exists as it will fail but GetLastError()
will return ERROR_ALREADY_EXISTS
:
if (CreateDirectory(OutputFolder.c_str(), NULL) ||
ERROR_ALREADY_EXISTS == GetLastError())
{
// CopyFile(...)
}
else
{
// Failed to create directory.
}
The code for constructing the target file is incorrect:
string(OutputFolder+CopiedFile).c_str()
this would produce "D:\testEmploi Nam.docx"
: there is a missing path separator between the directory and the filename. Example fix:
string(OutputFolder+"\\"+CopiedFile).c_str()
Anonymous FTP usage is covered by RFC 1635: How to Use Anonymous FTP:
What is Anonymous FTP?
Anonymous FTP is a means by which archive sites allow general access to their archives of information. These sites create a special account called "anonymous".
…
Traditionally, this special anonymous user account accepts any string as a password, although it is common to use either the password "guest" or one's electronic mail (e-mail) address. Some archive sites now explicitly ask for the user's e-mail address and will not allow login with the "guest" password. Providing an e-mail address is a courtesy that allows archive site operators to get some idea of who is using their services.
These are general recommendations, though. Each FTP server may have its own guidelines.
For sample use of the ftp
command on anonymous FTP access, see appendix A:
atlas.arc.nasa.gov% ftp naic.nasa.gov Connected to naic.nasa.gov. 220 naic.nasa.gov FTP server (Wed May 4 12:15:15 PDT 1994) ready. Name (naic.nasa.gov:amarine): anonymous 331 Guest login ok, send your complete e-mail address as password. Password: 230----------------------------------------------------------------- 230-Welcome to the NASA Network Applications and Info Center Archive 230- 230- Access to NAIC's online services is also available through: 230- 230- Gopher - naic.nasa.gov (port 70) 230- World-Wide-Web - http://naic.nasa.gov/naic/naic-home.html 230- 230- If you experience any problems please send email to 230- 230- [email protected] 230- 230- or call +1 (800) 858-9947 230----------------------------------------------------------------- 230- 230-Please read the file README 230- it was last modified on Fri Dec 10 13:06:33 1993 - 165 days ago 230 Guest login ok, access restrictions apply. ftp> cd files/rfc 250-Please read the file README.rfc 250- it was last modified on Fri Jul 30 16:47:29 1993 - 298 days ago 250 CWD command successful. ftp> get rfc959.txt 200 PORT command successful. 150 Opening ASCII mode data connection for rfc959.txt (147316 bytes). 226 Transfer complete. local: rfc959.txt remote: rfc959.txt 151249 bytes received in 0.9 seconds (1.6e+02 Kbytes/s) ftp> quit 221 Goodbye. atlas.arc.nasa.gov%
See also the example session at the University of Edinburgh site.
You can directly write the array in modern Java, without an initializer. Your example is now valid. It is generally best to name the parameter anyway.
String[] array = {"blah", "hey", "yo"};
or
int[] array = {1, 2, 3};
If you have to inline, you'll need to declare the type:
functionCall(new String[]{"blah", "hey", "yo"});
or use varargs (variable arguments)
void functionCall(String...stringArray) {
// Becomes a String[] containing any number of items or empty
}
functionCall("blah", "hey", "yo");
Hopefully Java's developers will allow implicit initialization in the future
Kotlin has made working with arrays so much easier! For most types, just use arrayOf
and it will implicitly determine type. Pass nothing to leave them empty.
arrayOf("1", "2", "3") // String
arrayOf(1, 2, 3) // Int
arrayOf(1, 2, "foo") // Any
arrayOf<Int>(1, 2, 3) // Set explict type
arrayOf<String>() // Empty String array
Primitives have utility functions. Pass nothing to leave them empty.
intArrayOf(1, 2, 3)
charArrayOf()
booleanArrayOf()
longArrayOf()
shortArrayOf()
byteArrayOf()
If you already have a Collection
and wish to convert it to an array inline, simply use:
collection.toTypedArray()
If you need to coerce an array type, use:
array.toIntArray()
array.toLongArray()
array.toCharArray()
...
It depends. The System.Timers.Timer
has two modes of operation.
If SynchronizingObject
is set to an ISynchronizeInvoke
instance then the Elapsed
event will execute on the thread hosting the synchronizing object. Usually these ISynchronizeInvoke
instances are none other than plain old Control
and Form
instances that we are all familiar with. So in that case the Elapsed
event is invoked on the UI thread and it behaves similar to the System.Windows.Forms.Timer
. Otherwise, it really depends on the specific ISynchronizeInvoke
instance that was used.
If SynchronizingObject
is null then the Elapsed
event is invoked on a ThreadPool
thread and it behaves similar to the System.Threading.Timer
. In fact, it actually uses a System.Threading.Timer
behind the scenes and does the marshaling operation after it receives the timer callback if needed.
If target column type is other than varchar/nvarchar like text, we need to cast the column value as string and then convert it as:
update URL_TABLE
set Parameters = REPLACE ( cast(Parameters as varchar(max)), 'india', 'bharat')
where URL_ID='150721_013359670'
Based on your comments, you should probably do what every other HTMLElement with asset loading does: make the constructor start a sideloading action, generating a load or error event depending on the result.
Yes, that means using promises, but it also means "doing things the same way as every other HTML element", so you're in good company. For instance:
var img = new Image();
img.onload = function(evt) { ... }
img.addEventListener("load", evt => ... );
img.onerror = function(evt) { ... }
img.addEventListener("error", evt => ... );
img.src = "some url";
this kicks off an asynchronous load of the source asset that, when it succeeds, ends in onload
and when it goes wrong, ends in onerror
. So, make your own class do this too:
class EMailElement extends HTMLElement {
constructor() {
super();
this.uid = this.getAttribute('data-uid');
}
setAttribute(name, value) {
super.setAttribute(name, value);
if (name === 'data-uid') {
this.uid = value;
}
}
set uid(input) {
if (!input) return;
const uid = parseInt(input);
// don't fight the river, go with the flow
let getEmail = new Promise( (resolve, reject) => {
yourDataBase.getByUID(uid, (err, result) => {
if (err) return reject(err);
resolve(result);
});
});
// kick off the promise, which will be async all on its own
getEmail()
.then(result => {
this.renderLoaded(result.message);
})
.catch(error => {
this.renderError(error);
});
}
};
customElements.define('e-mail', EmailElement);
And then you make the renderLoaded/renderError functions deal with the event calls and shadow dom:
renderLoaded(message) {
const shadowRoot = this.attachShadow({mode: 'open'});
shadowRoot.innerHTML = `
<div class="email">A random email message has appeared. ${message}</div>
`;
// is there an ancient event listener?
if (this.onload) {
this.onload(...);
}
// there might be modern event listeners. dispatch an event.
this.dispatchEvent(new Event('load', ...));
}
renderFailed() {
const shadowRoot = this.attachShadow({mode: 'open'});
shadowRoot.innerHTML = `
<div class="email">No email messages.</div>
`;
// is there an ancient event listener?
if (this.onload) {
this.onerror(...);
}
// there might be modern event listeners. dispatch an event.
this.dispatchEvent(new Event('error', ...));
}
Also note I changed your id
to a class
, because unless you write some weird code to only ever allow a single instance of your <e-mail>
element on a page, you can't use a unique identifier and then assign it to a bunch of elements.
<?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
Thanks to Larry's script, which worked perfectly well in IE10, this is what I've used:
$('#' + id)[0].innerHTML = result;
$('#' + id + " script").each(function() { this.text = this.text || $(this).text();} );
Usually, an Alpine Linux image doesn't contain bash
, Instead you can use /bin/ash
, /bin/sh
, ash
or only sh
.
/bin/ash
docker run -it --rm alpine /bin/ash
/bin/sh
docker run -it --rm alpine /bin/sh
ash
docker run -it --rm alpine ash
sh
docker run -it --rm alpine sh
I hope this information helps you.
It is possible to extend the relation with query functions:
<?php
public function comments()
{
return $this->hasMany('Comment')->orderBy('column');
}
[edit after comment]
<?php
class User
{
public function comments()
{
return $this->hasMany('Comment');
}
}
class Controller
{
public function index()
{
$column = Input::get('orderBy', 'defaultColumn');
$comments = User::find(1)->comments()->orderBy($column)->get();
// use $comments in the template
}
}
default User model + simple Controller example; when getting the list of comments, just apply the orderBy() based on Input::get(). (be sure to do some input-checking ;) )
It appears that SQL Server 2008 R2 can be downloaded with or without the management tools. I honestly have NO IDEA why someone would not want the management tools. But either way, the options are here:
http://www.microsoft.com/sqlserver/en/us/editions/express.aspx
and the one for 64 bit WITH the management tools (management studio) is here:
http://www.microsoft.com/sqlserver/en/us/editions/express.aspx
From the first link I presented, the 3rd and 4th include the management studio for 32 and 64 bit respectively.
sudo add-apt-repository ppa:deadsnakes
sudo apt-get update
sudo apt-get install python3.5 python3.5-tk
# or 2.7, 3.6 etc
# sudo apt-get install python2.7 python2.7-tk
# mouse_position.py
import Tkinter
p=Tkinter.Tk()
print(p.winfo_pointerxy()
Or with one-liner from the command line:
python -c "import Tkinter; p=Tkinter.Tk(); print(p.winfo_pointerxy())"
(1377, 379)
In case of NULL
columns it is better to use IF
clause like this which combine the two functions of : CONCAT
and COALESCE
and uses special chars between the columns in result like space or '_'
SELECT FirstName , LastName ,
IF(FirstName IS NULL AND LastName IS NULL, NULL,' _ ',CONCAT(COALESCE(FirstName ,''), COALESCE(LastName ,'')))
AS Contact_Phone FROM TABLE1
In SQL Server 2012, 2014:
USE mydb
GO
ALTER ROLE db_datareader ADD MEMBER MYUSER
GO
ALTER ROLE db_datawriter ADD MEMBER MYUSER
GO
In SQL Server 2008:
use mydb
go
exec sp_addrolemember db_datareader, MYUSER
go
exec sp_addrolemember db_datawriter, MYUSER
go
To also assign the ability to execute all Stored Procedures for a Database:
GRANT EXECUTE TO MYUSER;
To assign the ability to execute specific stored procedures:
GRANT EXECUTE ON dbo.sp_mystoredprocedure TO MYUSER;
My module memory_profiler is capable of printing a line-by-line report of memory usage and works on Unix and Windows (needs psutil on this last one). Output is not very detailed but the goal is to give you an overview of where the code is consuming more memory, not an exhaustive analysis on allocated objects.
After decorating your function with @profile
and running your code with the -m memory_profiler
flag it will print a line-by-line report like this:
Line # Mem usage Increment Line Contents
==============================================
3 @profile
4 5.97 MB 0.00 MB def my_func():
5 13.61 MB 7.64 MB a = [1] * (10 ** 6)
6 166.20 MB 152.59 MB b = [2] * (2 * 10 ** 7)
7 13.61 MB -152.59 MB del b
8 13.61 MB 0.00 MB return a
You have to tell the system what information to log and where to put the info. Logging is configured in the /etc/rsyslog.conf
file, then restart rsyslog to load the new config. The default logging rules are usually in a /etc/rsyslog.d/50-default.conf
file.
As toISOString()
will only return current UTC time , not local time. We have to make a date by using '.toString()' function to get date in yyyy-MM-dd
format like
document.write(new Date(new Date().toString().split('GMT')[0]+' UTC').toISOString().split('T')[0]);
_x000D_
To get date and time into in yyyy-MM-ddTHH:mm:ss
format
document.write(new Date(new Date().toString().split('GMT')[0]+' UTC').toISOString().split('.')[0]);
_x000D_
To get date and time into in yyyy-MM-dd HH:mm:ss
format
document.write(new Date(new Date().toString().split('GMT')[0]+' UTC').toISOString().split('.')[0].replace('T',' '));
_x000D_
Check whether you are actually under a github repo.
So, listing of .git/ should give you results..otherwise you may be some level outside your repo.
Now, cd to your repo and you are good to go.
You can use this
function percentage(partialValue, totalValue) {
return (100 * partialValue) / totalValue;
}
Example to calculate the percentage of a course progress base in their activities.
const totalActivities = 10;
const doneActivities = 2;
percentage(doneActivities, totalActivities) // Will return 20 that is 20%
Not only there is no need to declare it as false
first, I would add few other improvements:
use boolean
instead of Boolean
(which can also be null
for no reason)
assign during declaration:
boolean isMatch = email1.equals(email2);
...and use final
keyword if you can:
final boolean isMatch = email1.equals(email2);
Last but not least:
if (isMatch == true)
can be expressed as:
if (isMatch)
which renders the isMatch
flag not that useful, inlining it might not hurt readability. I suggest looking for some better courses/tutorials out there...
You start by writing a class that derives from Attribute:
public class MyCustomAttribute: Attribute
{
public string SomeProperty { get; set; }
}
Then you could decorate anything (class, method, property, ...) with this attribute:
[MyCustomAttribute(SomeProperty = "foo bar")]
public class Foo
{
}
and finally you would use reflection to fetch it:
var customAttributes = (MyCustomAttribute[])typeof(Foo).GetCustomAttributes(typeof(MyCustomAttribute), true);
if (customAttributes.Length > 0)
{
var myAttribute = customAttributes[0];
string value = myAttribute.SomeProperty;
// TODO: Do something with the value
}
You could limit the target types to which this custom attribute could be applied using the AttributeUsage attribute:
/// <summary>
/// This attribute can only be applied to classes
/// </summary>
[AttributeUsage(AttributeTargets.Class)]
public class MyCustomAttribute : Attribute
Important things to know about attributes:
If you are trying to do that in a Portable Class Library PCL (like me), then here is how you can do it :)
public class Foo
{
public string A {get;set;}
[Special]
public string B {get;set;}
}
var type = typeof(Foo);
var specialProperties = type.GetRuntimeProperties()
.Where(pi => pi.PropertyType == typeof (string)
&& pi.GetCustomAttributes<Special>(true).Any());
You can then check on the number of properties that have this special property if you need to.
This error can happen Tomcat is already running. So make sure Tomcat isn't running in the background if you've asked Intellij to start it up ( default ).
Also, check the full output window for more errors. As a more useful error may have preceded this one ( as was the case with my configuration just now )
It means what it says. The operation took too long to complete.
BTW, look at WebRequest.Timeout and you'll see that you've set your timeout for 1/5 second.
It's very easy. Try the below code
$(document).ready(function(){
var hashValue = location.hash.replace(/^#/, '');
//do something with the value here
});
You can use a conditional expression:
x if x is not None else some_value
Example:
In [22]: x = None
In [23]: print x if x is not None else "foo"
foo
In [24]: x = "bar"
In [25]: print x if x is not None else "foo"
bar
The full command would be something like below, notice the quotes
icacls "c:\inetpub\wwwroot\tmp" /grant "IIS AppPool\DefaultAppPool:F"
UPDATE: This solution is no longer valid. FQLs are deprecated since August 7th, 2016.
Also http://api.facebook.com/restserver.php?method=links.getStats&urls=http://www.techlila.com will show you all the data like 'Share Count', 'Like Count' and 'Comment Count' and total of all these.
Change the URL (i.e. http://www.techlila.com) as per your need.
This is the correct URL, I'm getting right results.
EDIT (May 2017): as of v2.9 you can make a graph API call where ID is the URL and select the 'engagement' field, below is a link with the example from the graph explorer.
C# supports conversions between arrays and lists as long as the arrays are not multidimensional and there is an inheritance relation between the types and the types are reference types
object[] oArray = new string[] { "one", "two", "three" };
string[] sArray = (string[])oArray;
// Also works for IList (and IEnumerable, ICollection)
IList<string> sList = (IList<string>)oArray;
IList<object> oList = new string[] { "one", "two", "three" };
Note that this does not work:
object[] oArray2 = new int[] { 1, 2, 3 }; // Error: Cannot implicitly convert type 'int[]' to 'object[]'
int[] iArray = (int[])oArray2; // Error: Cannot convert type 'object[]' to 'int[]'
This is my 2nd iteration of the code. Because MemoryCache
is thread safe you don't need to lock on the initial read, you can just read and if the cache returns null then do the lock check to see if you need to create the string. It greatly simplifies the code.
const string CacheKey = "CacheKey";
static readonly object cacheLock = new object();
private static string GetCachedData()
{
//Returns null if the string does not exist, prevents a race condition where the cache invalidates between the contains check and the retreival.
var cachedString = MemoryCache.Default.Get(CacheKey, null) as string;
if (cachedString != null)
{
return cachedString;
}
lock (cacheLock)
{
//Check to see if anyone wrote to the cache while we where waiting our turn to write the new value.
cachedString = MemoryCache.Default.Get(CacheKey, null) as string;
if (cachedString != null)
{
return cachedString;
}
//The value still did not exist so we now write it in to the cache.
var expensiveString = SomeHeavyAndExpensiveCalculation();
CacheItemPolicy cip = new CacheItemPolicy()
{
AbsoluteExpiration = new DateTimeOffset(DateTime.Now.AddMinutes(20))
};
MemoryCache.Default.Set(CacheKey, expensiveString, cip);
return expensiveString;
}
}
EDIT: The below code is unnecessary but I wanted to leave it to show the original method. It may be useful to future visitors who are using a different collection that has thread safe reads but non-thread safe writes (almost all of classes under the System.Collections
namespace is like that).
Here is how I would do it using ReaderWriterLockSlim
to protect access. You need to do a kind of "Double Checked Locking" to see if anyone else created the cached item while we where waiting to to take the lock.
const string CacheKey = "CacheKey";
static readonly ReaderWriterLockSlim cacheLock = new ReaderWriterLockSlim();
static string GetCachedData()
{
//First we do a read lock to see if it already exists, this allows multiple readers at the same time.
cacheLock.EnterReadLock();
try
{
//Returns null if the string does not exist, prevents a race condition where the cache invalidates between the contains check and the retreival.
var cachedString = MemoryCache.Default.Get(CacheKey, null) as string;
if (cachedString != null)
{
return cachedString;
}
}
finally
{
cacheLock.ExitReadLock();
}
//Only one UpgradeableReadLock can exist at one time, but it can co-exist with many ReadLocks
cacheLock.EnterUpgradeableReadLock();
try
{
//We need to check again to see if the string was created while we where waiting to enter the EnterUpgradeableReadLock
var cachedString = MemoryCache.Default.Get(CacheKey, null) as string;
if (cachedString != null)
{
return cachedString;
}
//The entry still does not exist so we need to create it and enter the write lock
var expensiveString = SomeHeavyAndExpensiveCalculation();
cacheLock.EnterWriteLock(); //This will block till all the Readers flush.
try
{
CacheItemPolicy cip = new CacheItemPolicy()
{
AbsoluteExpiration = new DateTimeOffset(DateTime.Now.AddMinutes(20))
};
MemoryCache.Default.Set(CacheKey, expensiveString, cip);
return expensiveString;
}
finally
{
cacheLock.ExitWriteLock();
}
}
finally
{
cacheLock.ExitUpgradeableReadLock();
}
}
always Until you fully understand the differences and implications of using the ==
and ===
operators, use the ===
operator since it will save you from obscure (non-obvious) bugs and WTFs. The "regular" ==
operator can have very unexpected results due to the type-coercion internally, so using ===
is always the recommended approach.
For insight into this, and other "good vs. bad" parts of Javascript read up on Mr. Douglas Crockford and his work. There's a great Google Tech Talk where he summarizes lots of good info: http://www.youtube.com/watch?v=hQVTIJBZook
Update:
The You Don't Know JS series by Kyle Simpson is excellent (and free to read online). The series goes into the commonly misunderstood areas of the language and explains the "bad parts" that Crockford suggests you avoid. By understanding them you can make proper use of them and avoid the pitfalls.
The "Up & Going" book includes a section on Equality, with this specific summary of when to use the loose (==
) vs strict (===
) operators:
To boil down a whole lot of details to a few simple takeaways, and help you know whether to use
==
or===
in various situations, here are my simple rules:
- If either value (aka side) in a comparison could be the
true
orfalse
value, avoid==
and use===
.- If either value in a comparison could be of these specific values (
0
,""
, or[]
-- empty array), avoid==
and use===
.- In all other cases, you're safe to use
==
. Not only is it safe, but in many cases it simplifies your code in a way that improves readability.
I still recommend Crockford's talk for developers who don't want to invest the time to really understand Javascript—it's good advice for a developer who only occasionally works in Javascript.
Your ProcExit label is your place where you release all the resources whether an error happened or not. For instance:
Public Sub SubA()
On Error Goto ProcError
Connection.Open
Open File for Writing
SomePreciousResource.GrabIt
ProcExit:
Connection.Close
Connection = Nothing
Close File
SomePreciousResource.Release
Exit Sub
ProcError:
MsgBox Err.Description
Resume ProcExit
End Sub
find ./ -type f -name "*.php" -o -name "*.html" -printf '%P\n' |xargs tar -I 'pigz -9' -cf target.tgz
for multicore or just for one core:
find ./ -type f -name "*.php" -o -name "*.html" -printf '%P\n' |xargs tar -czf target.tgz
A CSS only solution for those who are having trouble with mobile touchscreen button styling.
This will fix your hover-stick / active button problems.
body, html {
width: 600px;
}
p {
font-size: 20px;
}
button {
border: none;
width: 200px;
height: 60px;
border-radius: 30px;
background: #00aeff;
font-size: 20px;
}
button:active {
background: black;
color: white;
}
.delayed {
transition: all 0.2s;
transition-delay: 300ms;
}
.delayed:active {
transition: none;
}
_x000D_
<h1>Sticky styles for better touch screen buttons!</h1>
<button>Normal button</button>
<button class="delayed"><a href="https://www.google.com"/>Delayed style</a></button>
<p>The CSS :active psuedo style is displayed between the time when a user touches down (when finger contacts screen) on a element to the time when the touch up (when finger leaves the screen) occures. With a typical touch-screen tap interaction, the time of which the :active psuedo style is displayed can be very small resulting in the :active state not showing or being missed by the user entirely. This can cause issues with users not undertanding if their button presses have actually reigstered or not.</p>
<p>Having the the :active styling stick around for a few hundred more milliseconds after touch up would would improve user understanding when they have interacted with a button.</p>
_x000D_
I liked @Brad's answer from this thread, but wanted a way to save the results for further processing (MySql 8):
-- May need to adjust the recursion depth first
SET @@cte_max_recursion_depth = 10000 ; -- permit deeper recursion
-- Some boundaries
set @startDate = '2015-01-01'
, @endDate = '2020-12-31' ;
-- Save it to a table for later use
drop table if exists tmpDates ;
create temporary table tmpDates as -- this has to go _before_ the "with", Duh-oh!
WITH RECURSIVE t as (
select @startDate as dt
UNION
SELECT DATE_ADD(t.dt, INTERVAL 1 DAY) FROM t WHERE DATE_ADD(t.dt, INTERVAL 1 DAY) <= @endDate
)
select * FROM t -- need this to get the "with"'s results as a "result set", into the "create"
;
-- Exists?
select * from tmpDates ;
Which produces:
dt |
----------|
2015-01-01|
2015-01-02|
2015-01-03|
2015-01-04|
2015-01-05|
2015-01-06|
For node_modules you have to follow the below steps
1) In Command prompt -> Goto your project directory.
2) Command :npm init
3) It asks you to set up your package.json file
4) Command: npm install
or npm update
The gcc option -O
enables different levels of optimization. Use -O0
to disable them and use -S
to output assembly. -O3
is the highest level of optimization.
Starting with gcc 4.8 the optimization level -Og
is available. It enables optimizations that do not interfere with debugging and is the recommended default for the standard edit-compile-debug cycle.
To change the dialect of the assembly to either intel or att use -masm=intel
or -masm=att
.
You can also enable certain optimizations manually with -fname
.
Have a look at the gcc manual for much more.
update VersionedFields
set Value = replace(replace(value,'<iframe','<a>iframe'), '> </iframe>','</a>')
and you do it in a single pass.
int? here = (list.ElementAtOrDefault(2) != 0 ? list[2]:(int?) null);
My Favourite Method is to create a clearfix class in my css / scss document as below
.clearfix{
clear:both
}
And then call it in my html document as shown below
<html>
<div class="div-number-one">
Some Content before the clearfix
</div>
<!-- Let's say we need to clearfix Here between these two divs --->
<div class="clearfix"></div>
<div class="div-number-two">
Some more content after the clearfix
</div>
</html>
Use dataType casting. For example:
// converting from double to float:
double someValue;
// cast someValue to float!
float newValue = (float)someValue;
Cheers!
Note:
Integers are whole numbers, e.g. 10, 400, or -5.
Floating point numbers (floats) have decimal points and decimal places, for example 12.5, and 56.7786543.
Doubles are a specific type of floating point number that have greater precision than standard floating point numbers (meaning that they are accurate to a greater number of decimal places).
Php has an inbuilt JSON Serialising function.
json_encode
Please use that if you can and don't suffer Not Invented Here syndrome.
I had this issue and what I did and solved the problem was that I used AsEnumerable()
just before my Join clause.
here is my query:
List<AccountViewModel> selectedAccounts;
using (ctx = SmallContext.GetInstance()) {
var data = ctx.Transactions.
Include(x => x.Source).
Include(x => x.Relation).
AsEnumerable().
Join(selectedAccounts, x => x.Source.Id, y => y.Id, (x, y) => x).
GroupBy(x => new { Id = x.Relation.Id, Name = x.Relation.Name }).
ToList();
}
I was wondering why this issue happens, and now I think It is because after you make a query via LINQ, the result will be in memory and not loaded into objects, I don't know what that state is but they are in in some transitional state I think. Then when you use AsEnumerable()
or ToList()
, etc, you are placing them into physical memory objects and the issue is resolving.
I was wondering, if there is any difference between RemoveAll
and Except
and the pros of using HashSet
, so I have done quick performance check :)
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
namespace ListRemoveTest
{
class Program
{
private static Random random = new Random( (int)DateTime.Now.Ticks );
static void Main( string[] args )
{
Console.WriteLine( "Be patient, generating data..." );
List<string> list = new List<string>();
List<string> toRemove = new List<string>();
for( int x=0; x < 1000000; x++ )
{
string randString = RandomString( random.Next( 100 ) );
list.Add( randString );
if( random.Next( 1000 ) == 0 )
toRemove.Insert( 0, randString );
}
List<string> l1 = new List<string>( list );
List<string> l2 = new List<string>( list );
List<string> l3 = new List<string>( list );
List<string> l4 = new List<string>( list );
Console.WriteLine( "Be patient, testing..." );
Stopwatch sw1 = Stopwatch.StartNew();
l1.RemoveAll( toRemove.Contains );
sw1.Stop();
Stopwatch sw2 = Stopwatch.StartNew();
l2.RemoveAll( new HashSet<string>( toRemove ).Contains );
sw2.Stop();
Stopwatch sw3 = Stopwatch.StartNew();
l3 = l3.Except( toRemove ).ToList();
sw3.Stop();
Stopwatch sw4 = Stopwatch.StartNew();
l4 = l4.Except( new HashSet<string>( toRemove ) ).ToList();
sw3.Stop();
Console.WriteLine( "L1.Len = {0}, Time taken: {1}ms", l1.Count, sw1.Elapsed.TotalMilliseconds );
Console.WriteLine( "L2.Len = {0}, Time taken: {1}ms", l1.Count, sw2.Elapsed.TotalMilliseconds );
Console.WriteLine( "L3.Len = {0}, Time taken: {1}ms", l1.Count, sw3.Elapsed.TotalMilliseconds );
Console.WriteLine( "L4.Len = {0}, Time taken: {1}ms", l1.Count, sw3.Elapsed.TotalMilliseconds );
Console.ReadKey();
}
private static string RandomString( int size )
{
StringBuilder builder = new StringBuilder();
char ch;
for( int i = 0; i < size; i++ )
{
ch = Convert.ToChar( Convert.ToInt32( Math.Floor( 26 * random.NextDouble() + 65 ) ) );
builder.Append( ch );
}
return builder.ToString();
}
}
}
Results below:
Be patient, generating data...
Be patient, testing...
L1.Len = 985263, Time taken: 13411.8648ms
L2.Len = 985263, Time taken: 76.4042ms
L3.Len = 985263, Time taken: 340.6933ms
L4.Len = 985263, Time taken: 340.6933ms
As we can see, best option in that case is to use RemoveAll(HashSet)
byte[] b = IOUtils.toByteArray((new URL( )).openStream()); //idiom
Note however, that stream is not closed in the above example.
if you want a (76-character) chunk (using commons codec)...
byte[] b = Base64.encodeBase64(IOUtils.toByteArray((new URL( )).openStream()), true);
Unable to find local Grunt
likely means that you have installed Grunt globally.
The Grunt CLI insists that you install grunt in your local node_modules directory, so Grunt is local to your project.
This will fail:
npm install -g grunt
Do this instead:
npm install grunt --save-dev
Case :
Fail to execute the query :
DROP TABLE dbo.t_tabelname
Solution :
a. Display query Status Activity as follow :
SELECT * FROM pg_stat_activity ;
b. Find row where 'Query' column has contains :
'DROP TABLE dbo.t_tabelname'
c. In the same row, get value of 'PID' Column
example : 16409
d. Execute these scripts :
SELECT
pg_terminate_backend(25263)
FROM
pg_stat_activity
WHERE
-- don't kill my own connection!
25263 <> pg_backend_pid()
-- don't kill the connections to other databases
AND datname = 'database_name'
;
Json stands for JavaScript Object Notation really all json is are javascript objects so your array is in json form already. To write it out in a div you could do a bunch of things one of the easiest I think would be:
objectDiv.innerHTML = filter;
where objectDiv is the div you want selected from the DOM using jquery. If you wanted to list parts of the array out you could access them since it is a javascript object like so:
objectDiv.innerHTML = filter.dvals.valueToDisplay; //brand or count depending.
edit: anything you want to be a string but is not currently (which is rare javascript treats almost everything as a string) just use the toString()
function built in. so line above if you needed it would be filter.dvals.valueToDisplay.toString();
second edit to clarify: this answer is in response to the OP's comments and not completely to his original question.
It's to avoid a stack overflow. The Python interpreter limits the depths of recursion to help you avoid infinite recursions, resulting in stack overflows.
Try increasing the recursion limit (sys.setrecursionlimit
) or re-writing your code without recursion.
From the Python documentation:
sys.getrecursionlimit()
Return the current value of the recursion limit, the maximum depth of the Python interpreter stack. This limit prevents infinite recursion from causing an overflow of the C stack and crashing Python. It can be set by
setrecursionlimit()
.
$('#mySelect').val('ab').change();
// or
$('#mySelect').val('ab').trigger("change");
This will do it to every line in the file:
:%s/$/,/
If you want to do a subset of lines instead of the whole file, you can specify them in place of the %
.
One way is to do a visual select and then type the :
. It will fill in :'<,'>
for you, then you type the rest of it (Notice you only need to add s/$/,/
)
:'<,'>s/$/,/
The modern approach is with the java.time classes. These supplant the troublesome old legacy date-time classes such as Date
, Calendar
, and SimpleDateFormat
.
Parse as a ZonedDateTime
.
String input = "Mon Jun 18 00:00:00 IST 2012";
DateTimeFormatter f = DateTimeFormatter.ofPattern( "E MMM dd HH:mm:ss z uuuu" )
.withLocale( Locale.US );
ZonedDateTime zdt = ZonedDateTime.parse( input , f );
Extract a date-only object, a LocalDate
, without any time-of-day and without any time zone.
LocalDate ld = zdt.toLocalDate();
DateTimeFormatter fLocalDate = DateTimeFormatter.ofPattern( "dd/MM/uuuu" );
String output = ld.format( fLocalDate) ;
Dump to console.
System.out.println( "input: " + input );
System.out.println( "zdt: " + zdt );
System.out.println( "ld: " + ld );
System.out.println( "output: " + output );
input: Mon Jun 18 00:00:00 IST 2012
zdt: 2012-06-18T00:00+03:00[Asia/Jerusalem]
ld: 2012-06-18
output: 18/06/2012
See this code run live in IdeOne.com.
Your format is a poor choice for data exchange: hard to read by human, hard to parse by computer, uses non-standard 3-4 letter zone codes, and assumes English.
Instead use the standard ISO 8601 formats whenever possible. The java.time classes use ISO 8601 formats by default when parsing/generating date-time values.
Specify a proper time zone name in the format of continent/region
, such as America/Montreal
, Africa/Casablanca
, or Pacific/Auckland
. Never use the 3-4 letter abbreviation such as EST
or IST
as they are not true time zones, not standardized, and not even unique(!). For example, your use of IST
may be Irish Standard Time, Israel Standard Time (as interpreted by java.time, seen above), or India Standard Time.
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
Don't forget that integers can be negative:
^\s*-?[0-9]{1,10}\s*$
Here's the meaning of each part:
^
: Match must start at beginning of string\s
: Any whitespace character
*
: Occurring zero or more times-
: The hyphen-minus character, used to denote a negative integer
?
: May or may not occur[0-9]
: Any character whose ASCII code (or Unicode code point) is between '0' and '9'
{1,10}
: Occurring at least one, but not more than ten times\s
: Any whitespace character
*
: Occurring zero or more times$
: Match must end at end of stringThis ignores leading and trailing whitespace and would be more complex if you consider commas acceptable or if you need to count the minus sign as one of the ten allowed characters.
Friends, to keep everything clean you can use de commands:
I'm able to get the Class of the generic type this way:
class MyList<T> {
Class<T> clazz = (Class<T>) DAOUtil.getTypeArguments(MyList.class, this.getClass()).get(0);
}
You need two functions from this file: http://code.google.com/p/hibernate-generic-dao/source/browse/trunk/dao/src/main/java/com/googlecode/genericdao/dao/DAOUtil.java
For more explanation: http://www.artima.com/weblogs/viewpost.jsp?thread=208860
This is the easiest way to do this:
$text = var_export($bool_value,true);
echo $text;
or
var_export($bool_value)
If the second argument is not true, it will output the result directly.
Here's how you get the image size from the given URL in Python 3:
from PIL import Image
import urllib.request
from io import BytesIO
file = BytesIO(urllib.request.urlopen('http://getwallpapers.com/wallpaper/full/b/8/d/32803.jpg').read())
im = Image.open(file)
width, height = im.size
Simply put this block of xml in your activity layout file:
<RelativeLayout
android:id="@+id/loadingPanel"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center" >
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:indeterminate="true" />
</RelativeLayout>
And when you finish loading, call this one line:
findViewById(R.id.loadingPanel).setVisibility(View.GONE);
The result (and it spins too):
jQuery will encode and decode for you.
function htmlDecode(value) {_x000D_
return $("<textarea/>").html(value).text();_x000D_
}_x000D_
_x000D_
function htmlEncode(value) {_x000D_
return $('<textarea/>').text(value).html();_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>_x000D_
<script>_x000D_
$(document).ready(function() {_x000D_
$("#encoded")_x000D_
.text(htmlEncode("<img src onerror='alert(0)'>"));_x000D_
$("#decoded")_x000D_
.text(htmlDecode("<img src onerror='alert(0)'>"));_x000D_
});_x000D_
</script>_x000D_
_x000D_
<span>htmlEncode() result:</span><br/>_x000D_
<div id="encoded"></div>_x000D_
<br/>_x000D_
<span>htmlDecode() result:</span><br/>_x000D_
<div id="decoded"></div>
_x000D_
By using exploits or on badly configured servers it could be possible to download your PHP source. You could however either obfuscate and/or encrypt your code (using Zend Guard, Ioncube or a similar app) if you want to make sure your source will not be readable (to be accurate, obfuscation by itself could be reversed given enough time/resources, but I haven't found an IonCube or Zend Guard decryptor yet...).
List all files in a commit tree:
git ls-tree --name-only --full-tree a21e610
Ideone supports Python 2.6 and Python 3
In my case, I wanted to check out
a new branch
that has cut recently
but it's it big in size and I want to save time and internet bandwidth, as I'm in a slow metered network
so I copped the previous branch
that I already checked in
I went to the working directory, and from svn info, I can see it's on the previous branch I did the following command (you can find this command from svn switch --help
)
svn switch ^/branches/newBranchName
go check svn info
again you can see it is becoming the newBranchName go ahead and svn up
and this how I got the new branch easily, quickly with minimum data transmitting over the internet
hope sharing my case helps and speeds up your work
What Will said was right
R is an automatically generated class that holds the constants used to identify your >resources. If you don't have an R.java file (it would be gen/eu.mauriziopz.gps/R.java in >Eclipse with the 1.5 SDK) I would recommend closing and reopening your project or going to >Project > Build all (and selecting "Build Automatically" while there as recommended by >Josef). If that doesn't work than try making a new project, if the problem is recreated than >post here again and we'll go into more detail.
but I've found out that there was another problem that was causing the first one. The tools in the SDK directory didn't have the permissions to be executed, so it was like the didn't exist for Eclipse, thus it didn't build the R.java
file.
So modifying the permission and selecting "Build Automatically" solved the problem.
For anyone using entity framework core ending up here. This is how you do it.
# Powershell / Package manager console
Script-Migration
# Cli
dotnet ef migrations script
You can use the -From
and -To
parameter to generate an update script to update a database to a specific version.
Script-Migration -From 20190101011200_Initial-Migration -To 20190101021200_Migration-2
https://docs.microsoft.com/en-us/ef/core/managing-schemas/migrations/#generate-sql-scripts
There are several options to this command.
The from migration should be the last migration applied to the database before running the script. If no migrations have been applied, specify
0
(this is the default).The to migration is the last migration that will be applied to the database after running the script. This defaults to the last migration in your project.
An idempotent script can optionally be generated. This script only applies migrations if they haven't already been applied to the database. This is useful if you don't exactly know what the last migration applied to the database was or if you are deploying to multiple databases that may each be at a different migration.
Try this:
WHERE a.Country = (CASE WHEN @Country > 0 THEN @Country ELSE a.Country END)
If you're using PostgreSQL, the input from PHP can be escaped with pg_escape_string()
$username = pg_escape_string($_POST['username']);
From the documentation (http://php.net/manual/es/function.pg-escape-string.php):
pg_escape_string() escapes a string for querying the database. It returns an escaped string in the PostgreSQL format without quotes.
This is a good reading. Hope it helps. In terms of sorting you are concerning, I think it is for the merge operation in last step of Map. When map operation is done, and need to write the result to local disk, a multi-merge will be operated on the splits generated from buffer. And for a merge operation, sorting each partition in advanced is helpful.
server {
server_name example.com;
root /path/to/root;
location / {
# bla bla
}
location /demo {
alias /path/to/root/production/folder/here;
}
}
If you need to use try_files
inside /demo
you'll need to replace alias
with a root
and do a rewrite because of the bug explained here
Your onclick
fires before the href so it will change before the page is opened, you need to make the function handle the window opening like so:
function changeLink() {
var link = document.getElementById("mylink");
window.open(
link.href,
'_blank'
);
link.innerHTML = "facebook";
link.setAttribute('href', "http://facebook.com");
return false;
}
this
is the DOM element on which the event was hooked. this.id
is its ID. No need to wrap it in a jQuery instance to get it, the id
property reflects the attribute reliably on all browsers.
$("select").change(function() {
alert("Changed: " + this.id);
}
You're not doing this in your code sample, but if you were watching a container with several form elements, that would give you the ID of the container. If you want the ID of the element that triggered the event, you could get that from the event
object's target
property:
$("#container").change(function(event) {
alert("Field " + event.target.id + " changed");
});
(jQuery ensures that the change
event bubbles, even on IE where it doesn't natively.)
You can override the default implementation of console.log()
(function () {
var old = console.log;
var logger = document.getElementById('log');
console.log = function (message) {
if (typeof message == 'object') {
logger.innerHTML += (JSON && JSON.stringify ? JSON.stringify(message) : message) + '<br />';
} else {
logger.innerHTML += message + '<br />';
}
}
})();
Demo: Fiddle
A portion of Coffee here:
# My little helper
read_buffer = (buffer, callback) ->
data = ''
buffer.on 'readable', -> data += buffer.read().toString()
buffer.on 'end', -> callback data
# So request looks like
http.get 'http://i.want.some/stuff', (res) ->
read_buffer res, (response) ->
# Do some things with your response
# but don't do that exactly :D
eval(CoffeeScript.compile response, bare: true)
And compiled
var read_buffer;
read_buffer = function(buffer, callback) {
var data;
data = '';
buffer.on('readable', function() {
return data += buffer.read().toString();
});
return buffer.on('end', function() {
return callback(data);
});
};
http.get('http://i.want.some/stuff', function(res) {
return read_buffer(res, function(response) {
return eval(CoffeeScript.compile(response, {
bare: true
}));
});
});
This is a quite old request to reply but I want to give a short answer for newcommers. I had the same problem while working on an eight-languaged site. The problem is IDE based. The solution is to use Komodo Edit as code-editor. I tried many editors until I found one which doesnt change charset-settings of my pages. Dreamweaver (or almost all of others) change all pages code-page/charset settings whenever you change it for page. When you have changes in more than one page and have changed charset of any file then clicked "Save all", all open pages (including unchanged but assumed changed by editor because of charset) are silently re-assigned the new charset and all mismatching pages are broken down. I lost months on re-translating messages again and again until I discovered that Komodo Edit keeps settings separately for each file.
Use the code below to view the correlations in the descending order.
# See the correlations in descending order
corr = df.corr() # df is the pandas dataframe
c1 = corr.abs().unstack()
c1.sort_values(ascending = False)
Just using the Array iteration methods built into JS is fine for this:
var result1 = [_x000D_
{id:1, name:'Sandra', type:'user', username:'sandra'},_x000D_
{id:2, name:'John', type:'admin', username:'johnny2'},_x000D_
{id:3, name:'Peter', type:'user', username:'pete'},_x000D_
{id:4, name:'Bobby', type:'user', username:'be_bob'}_x000D_
];_x000D_
_x000D_
var result2 = [_x000D_
{id:2, name:'John', email:'[email protected]'},_x000D_
{id:4, name:'Bobby', email:'[email protected]'}_x000D_
];_x000D_
_x000D_
var props = ['id', 'name'];_x000D_
_x000D_
var result = result1.filter(function(o1){_x000D_
// filter out (!) items in result2_x000D_
return !result2.some(function(o2){_x000D_
return o1.id === o2.id; // assumes unique id_x000D_
});_x000D_
}).map(function(o){_x000D_
// use reduce to make objects with only the required properties_x000D_
// and map to apply this to the filtered array as a whole_x000D_
return props.reduce(function(newo, name){_x000D_
newo[name] = o[name];_x000D_
return newo;_x000D_
}, {});_x000D_
});_x000D_
_x000D_
document.body.innerHTML = '<pre>' + JSON.stringify(result, null, 4) +_x000D_
'</pre>';
_x000D_
If you are doing this a lot, then by all means look at external libraries to help you out, but it's worth learning the basics first, and the basics will serve you well here.
I like to use -v
for verbose mode.
It'll give you the commit id, comments and all affected files.
svn log -v --limit 4
Example of output:
I added some migrations and deleted a test xml file ------------------------------------------------------------------------ r58687 | mr_x | 2012-04-02 15:31:31 +0200 (Mon, 02 Apr 2012) | 1 line Changed paths: A /trunk/java/App/src/database/support A /trunk/java/App/src/database/support/MIGRATE A /trunk/java/App/src/database/support/MIGRATE/remove_device.sql D /trunk/java/App/src/code/test.xml
You can try:
jar tvf jarfile.jar
This will be helpful only if your jar is executable i.e. in manifest you have defined some class as main class
You can't manipulate :after
, because it's not technically part of the DOM and therefore is inaccessible by any JavaScript. But you can add a new class with a new :after
specified.
CSS:
.pageMenu .active.changed:after {
/* this selector is more specific, so it takes precedence over the other :after */
border-top-width: 22px;
border-left-width: 22px;
border-right-width: 22px;
}
JS:
$('.pageMenu .active').toggleClass('changed');
UPDATE: while it's impossible to directly modify the :after
content, there are ways to read and/or override it using JavaScript. See "Manipulating CSS pseudo-elements using jQuery (e.g. :before and :after)" for a comprehensive list of techniques.
From application perspective, if one needs only to avoid duplicates then HashSet
is what you are looking for since it's Lookup, Insert and Remove complexities are O(1) - constant. What this means it does not matter how many elements HashSet
has it will take same amount of time to check if there's such element or not, plus since you are inserting elements at O(1) too it makes it perfect for this sort of thing.
Click "view details" to find the inner exception.
First install setuptools
sudo pip install setuptools
Then install mysql-connector
sudo pip install mysql-connector
If using Python3, then replace pip by pip3
What is more logical then testing the TYPE of the result variable before processing? It is either of type 'boolean' or 'resource'. When you use a boolean for parameter with mysqli_num_rows, a warning will be generated because the function expects a resource.
$result = mysqli_query($dbs, $sql);
if(gettype($result)=='boolean'){ // test for boolean
if($result){ // returned TRUE, e.g. in case of a DELETE sql
echo "SQL succeeded";
} else { // returned FALSE
echo "Error: " . mysqli_error($dbs);
}
} else { // must be a resource
if(mysqli_num_rows($result)){
// process the data
}
mysqli_free_result($result);
}
As a non-java selenium user, here is the python equivalent to Margus's answer:
from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
class ChromeConsoleLogging(object):
def __init__(self, ):
self.driver = None
def setUp(self, ):
desired = DesiredCapabilities.CHROME
desired ['loggingPrefs'] = { 'browser':'ALL' }
self.driver = webdriver.Chrome(desired_capabilities=desired)
def analyzeLog(self, ):
data = self.driver.get_log('browser')
print(data)
def testMethod(self, ):
self.setUp()
self.driver.get("http://mypage.com")
self.analyzeLog()
Edit: Keeping Python answer in this thread because it is very similar to the Java answer and this post is returned on a Google search for the similar Python question
You cannot store arrays in a vector
or any other container. The type of the elements to be stored in a container (called the container's value type) must be both copy constructible and assignable. Arrays are neither.
You can, however, use an array
class template, like the one provided by Boost, TR1, and C++0x:
std::vector<std::array<double, 4> >
(You'll want to replace std::array
with std::tr1::array
to use the template included in C++ TR1, or boost::array
to use the template from the Boost libraries. Alternatively, you can write your own; it's quite straightforward.)
protected void grdDis_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
#region Dynamically Show gridView header From data base
getAllheaderName();/*To get all Allowences master headerName*/
TextBox txt_Days = (TextBox)grdDis.HeaderRow.FindControl("txtDays");
txt_Days.Text = hidMonthsDays.Value;
#endregion
}
}
For deleting branch from Bitbucket,
I just encountered the issue and couldn't figure out what was going wrong even after reading all the above and everything out there. What I did was
Each logging implementation has it's own way of setting it via properties or via code(lot of help available on this)
Irrespective of all the above I would not get the logs in my console or my log file. What I had overlooked was the below...
All I was doing with the above jugglery was controlling only the production of the logs(at root/package/class etc), left of the red line in above image. But I was not changing the way displaying/consumption of the logs of the same, right of the red line in above image. Handler(Consumption) is usually defaulted at INFO, therefore your precious debug statements wouldn't come through. Consumption/displaying is controlled by setting the log levels for the Handlers(ConsoleHandler/FileHandler etc..) So I went ahead and set the log levels of all my handlers to finest and everything worked.
This point was not made clear in a precise manner in any place.
I hope someone scratching their head, thinking why the properties are not working will find this bit helpful.
In this function, n can be positive or negative.
def addmonth(d, n):
n += 1
dd = datetime.date(d.year + n/12, d.month + n%12, 1)-datetime.timedelta(1)
return datetime.date(dd.year, dd.month, min(d.day, dd.day))
You can try "SelectedIndexChanged
", it will trigger the event even if the same item is selected.
The argument order seems to matter... to exclude subdirectories, I used
robocopy \\source\folder C:\destinationfolder /XD * /MIR
...and that works for me (Windows 10 copy from Windows Server 2016)
this is actually so straight forward, this is my HTML, jQuery sample.. and it works like a charm, I build all the code using an online json data sample. cheers
<< HTML >>
<table id="myTable"></table>
<< jQuery >>
<script>
var url = 'http://jsonplaceholder.typicode.com/posts';
var currentEditedIndex = -1;
$(document).ready(function () {
$.getJSON(url,
function (json) {
var tr;
tr = $('<tr/>');
tr.append("<td>ID</td>");
tr.append("<td>userId</td>");
tr.append("<td>title</td>");
tr.append("<td>body</td>");
tr.append("<td>edit</td>");
$('#myTable').append(tr);
for (var i = 0; i < json.length; i++) {
tr = $('<tr/>');
tr.append("<td>" + json[i].id + "</td>");
tr.append("<td>" + json[i].userId + "</td>");
tr.append("<td>" + json[i].title + "</td>");
tr.append("<td>" + json[i].body + "</td>");
tr.append("<td><input type='button' value='edit' id='edit' onclick='myfunc(" + i + ")' /></td>");
$('#myTable').append(tr);
}
});
});
function myfunc(rowindex) {
rowindex++;
console.log(currentEditedIndex)
if (currentEditedIndex != -1) { //not first time to click
cancelClick(rowindex)
}
else {
cancelClick(currentEditedIndex)
}
currentEditedIndex = rowindex; //update the global variable to current edit location
//get cells values
var cell1 = ($("#myTable tr:eq(" + (rowindex) + ") td:eq(0)").text());
var cell2 = ($("#myTable tr:eq(" + (rowindex) + ") td:eq(1)").text());
var cell3 = ($("#myTable tr:eq(" + (rowindex) + ") td:eq(2)").text());
var cell4 = ($("#myTable tr:eq(" + (rowindex) + ") td:eq(3)").text());
//remove text from previous click
//add a cancel button
$("#myTable tr:eq(" + (rowindex) + ") td:eq(4)").append(" <input type='button' onclick='cancelClick("+rowindex+")' id='cancelBtn' value='Cancel' />");
$("#myTable tr:eq(" + (rowindex) + ") td:eq(4)").css("width", "200");
//make it a text box
$("#myTable tr:eq(" + (rowindex) + ") td:eq(0)").html(" <input type='text' id='mycustomid' value='" + cell1 + "' style='width:30px' />");
$("#myTable tr:eq(" + (rowindex) + ") td:eq(1)").html(" <input type='text' id='mycustomuserId' value='" + cell2 + "' style='width:30px' />");
$("#myTable tr:eq(" + (rowindex) + ") td:eq(2)").html(" <input type='text' id='mycustomtitle' value='" + cell3 + "' style='width:130px' />");
$("#myTable tr:eq(" + (rowindex) + ") td:eq(3)").html(" <input type='text' id='mycustomedit' value='" + cell4 + "' style='width:400px' />");
}
//on cancel, remove the controls and remove the cancel btn
function cancelClick(indx)
{
//console.log('edit is at row>> rowindex:' + currentEditedIndex);
indx = currentEditedIndex;
var cell1 = ($("#myTable #mycustomid").val());
var cell2 = ($("#myTable #mycustomuserId").val());
var cell3 = ($("#myTable #mycustomtitle").val());
var cell4 = ($("#myTable #mycustomedit").val());
$("#myTable tr:eq(" + (indx) + ") td:eq(0)").html(cell1);
$("#myTable tr:eq(" + (indx) + ") td:eq(1)").html(cell2);
$("#myTable tr:eq(" + (indx) + ") td:eq(2)").html(cell3);
$("#myTable tr:eq(" + (indx) + ") td:eq(3)").html(cell4);
$("#myTable tr:eq(" + (indx) + ") td:eq(4)").find('#cancelBtn').remove();
}
</script>
One way to control your DialogFragment
's width and height is to make sure its dialog respects your view's width and height if their value is WRAP_CONTENT
.
ThemeOverlay.AppCompat.Dialog
One simple way to achieve this is to make use of the ThemeOverlay.AppCompat.Dialog
style that's included in Android Support Library.
DialogFragment
with Dialog
:
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
LayoutInflater inflater = LayoutInflater.from(getContext());
View view = inflater.inflate(R.layout.dialog_view, null);
Dialog dialog = new Dialog(getContext(), R.style.ThemeOverlay_AppCompat_Dialog);
dialog.setContentView(view);
return dialog;
}
DialogFragment
with AlertDialog
(caveat: minHeight="48dp"
):
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
LayoutInflater inflater = LayoutInflater.from(getContext());
View view = inflater.inflate(R.layout.dialog_view, null);
AlertDialog.Builder builder = new AlertDialog.Builder(getContext(), R.style.ThemeOverlay_AppCompat_Dialog);
builder.setView(view);
return builder.create();
}
You can also set ThemeOverlay.AppCompat.Dialog
as the default theme when creating your dialogs, by adding it to your app's xml theme.
Be careful, as many dialogs do need the default minimum width to look good.
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- For Android Dialog. -->
<item name="android:dialogTheme">@style/ThemeOverlay.AppCompat.Dialog</item>
<!-- For Android AlertDialog. -->
<item name="android:alertDialogTheme">@style/ThemeOverlay.AppCompat.Dialog</item>
<!-- For AppCompat AlertDialog. -->
<item name="alertDialogTheme">@style/ThemeOverlay.AppCompat.Dialog</item>
<!-- Other attributes. -->
</style>
DialogFragment
with Dialog
, making use of android:dialogTheme
:
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
LayoutInflater inflater = LayoutInflater.from(getContext());
View view = inflater.inflate(R.layout.dialog_view, null);
Dialog dialog = new Dialog(getContext());
dialog.setContentView(view);
return dialog;
}
DialogFragment
with AlertDialog
, making use of android:alertDialogTheme
or alertDialogTheme
(caveat: minHeight="48dp"
):
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
LayoutInflater inflater = LayoutInflater.from(getContext());
View view = inflater.inflate(R.layout.dialog_view, null);
AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
builder.setView(view);
return builder.create();
}
On Older Android APIs, Dialog
s seem to have some width issues, because of their title (even if you don't set one).
If you don't want to use ThemeOverlay.AppCompat.Dialog
style and your Dialog
doesn't need a title (or has a custom one), you might want to disable it:
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
LayoutInflater inflater = LayoutInflater.from(getContext());
View view = inflater.inflate(R.layout.dialog_view, null);
Dialog dialog = new Dialog(getContext());
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setContentView(view);
return dialog;
}
I was trying to make the dialog respect the width and height of my layout, without specifying a fixed size programmatically.
I figured that android:windowMinWidthMinor
and android:windowMinWidthMajor
were causing the problem. Even though they were not included in the theme of my Activity
or Dialog
, they were still being applied to the Activity
theme, somehow.
I came up with three possible solutions.
Solution 1: create a custom dialog theme and use it when creating the dialog in the DialogFragment
.
<style name="Theme.Material.Light.Dialog.NoMinWidth" parent="android:Theme.Material.Light.Dialog">
<item name="android:windowMinWidthMinor">0dip</item>
<item name="android:windowMinWidthMajor">0dip</item>
</style>
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
return new Dialog(getActivity(), R.style.Theme_Material_Light_Dialog_NoMinWidth);
}
Solution 2: create a custom theme to be used in a ContextThemeWrapper
that will serve as Context
for the dialog. Use this if you don't want to create a custom dialog theme (for instance, when you want to use the theme specified by android:dialogTheme
).
<style name="Theme.Window.NoMinWidth" parent="">
<item name="android:windowMinWidthMinor">0dip</item>
<item name="android:windowMinWidthMajor">0dip</item>
</style>
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
return new Dialog(new ContextThemeWrapper(getActivity(), R.style.Theme_Window_NoMinWidth), getTheme());
}
Solution 3 (with an AlertDialog
): enforce android:windowMinWidthMinor
and android:windowMinWidthMajor
into the ContextThemeWrapper
created by the AlertDialog$Builder
.
<style name="Theme.Window.NoMinWidth" parent="">
<item name="android:windowMinWidthMinor">0dip</item>
<item name="android:windowMinWidthMajor">0dip</item>
</style>
@Override
public final Dialog onCreateDialog(Bundle savedInstanceState) {
View view = new View(); // Inflate your view here.
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setView(view);
// Make sure the dialog width works as WRAP_CONTENT.
builder.getContext().getTheme().applyStyle(R.style.Theme_Window_NoMinWidth, true);
return builder.create();
}
Use:
+ scale_y_continuous(labels = scales::percent)
Or, to specify formatting parameters for the percent:
+ scale_y_continuous(labels = scales::percent_format(accuracy = 1))
(the command labels = percent
is obsolete since version 2.2.1 of ggplot2)
This is not a generic solution, but some databases allow you to use regular expressions to specify the columns.
For instance, in the case of Hive, the following query selects all columns except ds and hr:
SELECT `(ds|hr)?+.+` FROM sales
Try this one, this function allows alphanumeric and spaces:
function alpha(e) {
var k;
document.all ? k = e.keyCode : k = e.which;
return ((k > 64 && k < 91) || (k > 96 && k < 123) || k == 8 || k == 32 || (k >= 48 && k <= 57));
}
in your html:
<input type="text" name="name" onkeypress="return alpha(event)"/>
operator<<
implemented as a friend function:
#include <iostream>
#include <string>
using namespace std;
class Samp
{
public:
int ID;
string strName;
friend std::ostream& operator<<(std::ostream &os, const Samp& obj);
};
std::ostream& operator<<(std::ostream &os, const Samp& obj)
{
os << obj.ID<< “ ” << obj.strName;
return os;
}
int main()
{
Samp obj, obj1;
obj.ID = 100;
obj.strName = "Hello";
obj1=obj;
cout << obj <<endl<< obj1;
}
OUTPUT:
100 Hello
100 Hello
This can be a friend function only because the object is on the right hand side of operator<<
and argument cout
is on the left hand side. So this can't be a member function to the class, it can only be a friend function.
UPDATE tbl_ClientNotes
SET ordering=@ordering, title=@title, content=@content
WHERE id=@id
AND @ordering IS NOT NULL
AND @title IS NOT NULL
AND @content IS NOT NULL
Or if you meant you only want to update individual columns you would use the post above mine. I read it as do not update if any values are null
For either the os.rename or shutil.move you will need to import the module. No * character is necessary to get all the files moved.
We have a folder at /opt/awesome called source with one file named awesome.txt.
in /opt/awesome
? ? ls
source
? ? ls source
awesome.txt
python
>>> source = '/opt/awesome/source'
>>> destination = '/opt/awesome/destination'
>>> import os
>>> os.rename(source, destination)
>>> os.listdir('/opt/awesome')
['destination']
We used os.listdir to see that the folder name in fact changed. Here's the shutil moving the destination back to source.
>>> import shutil
>>> shutil.move(destination, source)
>>> os.listdir('/opt/awesome/source')
['awesome.txt']
This time I checked inside the source folder to be sure the awesome.txt file I created exists. It is there :)
Now we have moved a folder and its files from a source to a destination and back again.
Try this.. very easy to understand & implementation...
You can download sample code directly here https://github.com/Tech-Dev-Mobile/Json-Sample
- (void)simpleJsonParsingPostMetod
{
#warning set webservice url and parse POST method in JSON
//-- Temp Initialized variables
NSString *first_name;
NSString *image_name;
NSData *imageData;
//-- Convert string into URL
NSString *urlString = [NSString stringWithFormat:@"demo.com/your_server_db_name/service/link"];
NSMutableURLRequest *request =[[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
NSString *boundary = @"14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[request addValue:contentType forHTTPHeaderField: @"Content-Type"];
//-- Append data into posr url using following method
NSMutableData *body = [NSMutableData data];
//-- For Sending text
//-- "firstname" is keyword form service
//-- "first_name" is the text which we have to send
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n",@"firstname"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"%@",first_name] dataUsingEncoding:NSUTF8StringEncoding]];
//-- For sending image into service if needed (send image as imagedata)
//-- "image_name" is file name of the image (we can set custom name)
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition:form-data; name=\"file\"; filename=\"%@\"\r\n",image_name] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
//-- Sending data into server through URL
[request setHTTPBody:body];
//-- Getting response form server
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
//-- JSON Parsing with response data
NSDictionary *result = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableContainers error:nil];
NSLog(@"Result = %@",result);
}
I found the best solution included the accepted answer from @Esqarrouth, with some adjustments:
extension UIViewController {
func hideKeyboardWhenTappedAround() {
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: "dismissKeyboardView")
tap.cancelsTouchesInView = false
view.addGestureRecognizer(tap)
}
func dismissKeyboardView() {
view.endEditing(true)
}
}
The line tap.cancelsTouchesInView = false
was critical: it ensures that the UITapGestureRecognizer
does not prevent other elements on the view from receiving user interaction.
The method dismissKeyboard()
was changed to the slightly less elegant dismissKeyboardView()
. This is because in my project's fairly old codebase, there were numerous times where dismissKeyboard()
was already used (I imagine this is not uncommon), causing compiler issues.
Then, as above, this behaviour can be enabled in individual View Controllers:
override func viewDidLoad() {
super.viewDidLoad()
self.hideKeyboardWhenTappedAround()
}
Errors you'll see if a RestTemplate
isn't defined
Consider defining a bean of type 'org.springframework.web.client.RestTemplate' in your configuration.
or
No qualifying bean of type [org.springframework.web.client.RestTemplate] found
How to define a RestTemplate
via annotations
Depending on which technologies you're using and what versions will influence how you define a RestTemplate
in your @Configuration
class.
Spring >= 4 without Spring Boot
Simply define an @Bean
:
@Bean
public RestTemplate restTemplate() {
return new RestTemplate();
}
Spring Boot <= 1.3
No need to define one, Spring Boot automatically defines one for you.
Spring Boot >= 1.4
Spring Boot no longer automatically defines a RestTemplate
but instead defines a RestTemplateBuilder
allowing you more control over the RestTemplate
that gets created. You can inject the RestTemplateBuilder
as an argument in your @Bean
method to create a RestTemplate
:
@Bean
public RestTemplate restTemplate(RestTemplateBuilder builder) {
// Do any additional configuration here
return builder.build();
}
Using it in your class
@Autowired
private RestTemplate restTemplate;
or
@Inject
private RestTemplate restTemplate;
I'm newbie, so sorry if is a bad practice. Based on the chosen answer, I did this function:
function x_apply(selector, variable, value) {
var scope = angular.element( $(selector) ).scope();
scope.$apply(function(){
scope[variable] = value;
});
}
I'm using it this way:
x_apply('#fileuploader', 'thereisfiles', true);
By the way, sorry for my english
The answers I saw didn't work with the float(52.15) case. After some tests, there is the solution that I'm using:
import decimal
def value_to_decimal(value, decimal_places):
decimal.getcontext().rounding = decimal.ROUND_HALF_UP # define rounding method
return decimal.Decimal(str(float(value))).quantize(decimal.Decimal('1e-{}'.format(decimal_places)))
(The conversion of the 'value' to float and then string is very important, that way, 'value' can be of the type float, decimal, integer or string!)
Hope this helps anyone.
@SamualDavis provided a great solution in a related question, which I'll summarize here.
If you have to deserialize a JSON stream into a concrete class that has interface properties, you can include the concrete classes as parameters to a constructor for the class! The NewtonSoft deserializer is smart enough to figure out that it needs to use those concrete classes to deserialize the properties.
Here is an example:
public class Visit : IVisit
{
/// <summary>
/// This constructor is required for the JSON deserializer to be able
/// to identify concrete classes to use when deserializing the interface properties.
/// </summary>
public Visit(MyLocation location, Guest guest)
{
Location = location;
Guest = guest;
}
public long VisitId { get; set; }
public ILocation Location { get; set; }
public DateTime VisitDate { get; set; }
public IGuest Guest { get; set; }
}
Yes .You can store and retrive the object using Sharedpreference
Here goes:
char str[] = "This is the end";
char input[100];
printf("%s\n", str);
printf("%c\n", *str);
scanf("%99s", input);
It's possible to debug JavaScript by setting breakpoints in Eclipse using the AJAX Tools Framework.
It is a little inefficient to take the last N of a collection using LINQ as all the above solutions require iterating across the collection. TakeLast(int n)
in System.Interactive
also has this problem.
If you have a list a more efficient thing to do is slice it using the following method
/// Select from start to end exclusive of end using the same semantics
/// as python slice.
/// <param name="list"> the list to slice</param>
/// <param name="start">The starting index</param>
/// <param name="end">The ending index. The result does not include this index</param>
public static List<T> Slice<T>
(this IReadOnlyList<T> list, int start, int? end = null)
{
if (end == null)
{
end = list.Count();
}
if (start < 0)
{
start = list.Count + start;
}
if (start >= 0 && end.Value > 0 && end.Value > start)
{
return list.GetRange(start, end.Value - start);
}
if (end < 0)
{
return list.GetRange(start, (list.Count() + end.Value) - start);
}
if (end == start)
{
return new List<T>();
}
throw new IndexOutOfRangeException(
"count = " + list.Count() +
" start = " + start +
" end = " + end);
}
with
public static List<T> GetRange<T>( this IReadOnlyList<T> list, int index, int count )
{
List<T> r = new List<T>(count);
for ( int i = 0; i < count; i++ )
{
int j=i + index;
if ( j >= list.Count )
{
break;
}
r.Add(list[j]);
}
return r;
}
and some test cases
[Fact]
public void GetRange()
{
IReadOnlyList<int> l = new List<int>() { 0, 10, 20, 30, 40, 50, 60 };
l
.GetRange(2, 3)
.ShouldAllBeEquivalentTo(new[] { 20, 30, 40 });
l
.GetRange(5, 10)
.ShouldAllBeEquivalentTo(new[] { 50, 60 });
}
[Fact]
void SliceMethodShouldWork()
{
var list = new List<int>() { 1, 3, 5, 7, 9, 11 };
list.Slice(1, 4).ShouldBeEquivalentTo(new[] { 3, 5, 7 });
list.Slice(1, -2).ShouldBeEquivalentTo(new[] { 3, 5, 7 });
list.Slice(1, null).ShouldBeEquivalentTo(new[] { 3, 5, 7, 9, 11 });
list.Slice(-2)
.Should()
.BeEquivalentTo(new[] {9, 11});
list.Slice(-2,-1 )
.Should()
.BeEquivalentTo(new[] {9});
}
You don't need to declare them as arrays if you want to use use them as pointers. You can simply reference pointers as if they were multi-dimensional arrays. Just create it as a pointer to a pointer and use malloc
:
int i;
int M=30, N=25;
int ** buf;
buf = (int**) malloc(M * sizeof(int*));
for(i=0;i<M;i++)
buf[i] = (int*) malloc(N * sizeof(int));
and then you can reference buf[3][5]
or whatever.
In order to create an anonymous type (or any type) with a property that has a reserved keyword as its name in C#, you can prepend the property name with an at sign, @
:
Html.BeginForm("Foo", "Bar", FormMethod.Post, new { @class = "myclass"})
For VB.NET this syntax would be accomplished using the dot, .
, which in that language is default syntax for all anonymous types:
Html.BeginForm("Foo", "Bar", FormMethod.Post, new with { .class = "myclass" })
Thanks for the info, think I see the problem. This is a bug in hive-go
that only shows up when you add a host. The last lines of it are:
app.listen(3001);
console.log("... port %d in %s mode", app.address().port, app.settings.env);
When you add the host on the first line, it is crashing when it calls app.address().port
.
The problem is the potentially asynchronous nature of .listen()
. Really it should be doing that console.log
call inside a callback passed to listen. When you add the host, it tries to do a DNS lookup, which is async. So when that line tries to fetch the address, there isn't one yet because the DNS request is running, so it crashes.
Try this:
app.listen(3001, 'localhost', function() {
console.log("... port %d in %s mode", app.address().port, app.settings.env);
});
The .btn-lg
class has the following CSS in Bootstrap 3 (link):
.btn-lg {
padding: 10px 16px;
font-size: 18px;
line-height: 1.33;
border-radius: 6px;
}
If you apply the same font-size
and line-height
to your span (either .glyphicon-link
or a newly created .glyphicons-lg
if you're going to use this effect in more than one instance), you'll get a Glyphicon the same size as the large button.
In case you are appending to the DOM, make sure the content is compatible:
modal.find ('div.modal-body').append (content) // check content
I wanted to extend the answers already given to include support for dynamically connected devices that aren't captured with /dev/bus/usb
and how to get this working when using a Windows host along with the boot2docker VM.
If you are working with Windows, you'll need to add any USB rules for devices that you want Docker to access within the VirtualBox manager. To do this you can stop the VM by running:
host:~$ docker-machine stop default
Open the VirtualBox Manager and add USB support with filters as required.
Start the boot2docker VM:
host:~$ docker-machine start default
Since the USB devices are connected to the boot2docker VM, the commands need to be run from that machine. Open up a terminal with the VM and run the docker run command:
host:~$ docker-machine ssh
docker@default:~$ docker run -it --privileged ubuntu bash
Note, when the command is run like this, then only previously connected USB devices will be captures. The volumes flag is only required if you want this to work with devices connected after the container is started. In that case, you can use:
docker@default:~$ docker run -it --privileged -v /dev:/dev ubuntu bash
Note, I had to use /dev
instead of /dev/bus/usb
in some cases to capture a device like /dev/sg2
. I can only assume the same would be true for devices like /dev/ttyACM0
or /dev/ttyUSB0
.
The docker run commands will work with a Linux host as well.
If worse comes to worse, you can create an interface and adapter pair. You would change all uses of ConcreteClass to use the interface instead, and always pass the adapter instead of the concrete class in production code.
The adapter implements the interface, so the mock can also implement the interface.
It's more scaffolding than just making a method virtual or just adding an interface, but if you don't have access to the source for the concrete class it can get you out of a bind.
By default Jsonresult "Deny get"
Suppose if we have method like below
[HttpPost]
public JsonResult amc(){}
By default it "Deny Get".
In the below method
public JsonResult amc(){}
When you need to allowget or use get ,we have to use JsonRequestBehavior.AllowGet.
public JsonResult amc()
{
return Json(new Modle.JsonResponseData { Status = flag, Message = msg, Html = html }, JsonRequestBehavior.AllowGet);
}
[How can I] Change the password, so I can share it with others and let them sign
Using keytool:
keytool -storepasswd -keystore /path/to/keystore
Enter keystore password: changeit
New keystore password: new-password
Re-enter new keystore password: new-password
You Can Use Below Code To Make Status Bar Transparent. See Images With red highlight which helps you to identify use of Below code
Kotlin code snippet for your android app
Step:1 Write down code in On create Method
if (Build.VERSION.SDK_INT >= 19 && Build.VERSION.SDK_INT < 21) {
setWindowFlag(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, true)
}
if (Build.VERSION.SDK_INT >= 19) {
window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_STABLE or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
}
if (Build.VERSION.SDK_INT >= 21) {
setWindowFlag(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, false)
window.statusBarColor = Color.TRANSPARENT
}
Step2: You Need SetWindowFlag method which describe in Below code.
private fun setWindowFlag(bits: Int, on: Boolean) {
val win = window
val winParams = win.attributes
if (on) {
winParams.flags = winParams.flags or bits
} else {
winParams.flags = winParams.flags and bits.inv()
}
win.attributes = winParams
}
Java code snippet for your android app:
Step1: Main Activity Code
if (Build.VERSION.SDK_INT >= 19 && Build.VERSION.SDK_INT < 21) {
setWindowFlag(this, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, true);
}
if (Build.VERSION.SDK_INT >= 19) {
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
}
if (Build.VERSION.SDK_INT >= 21) {
setWindowFlag(this, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, false);
getWindow().setStatusBarColor(Color.TRANSPARENT);
}
Step2: SetWindowFlag Method
public static void setWindowFlag(Activity activity, final int bits, boolean on) {
Window win = activity.getWindow();
WindowManager.LayoutParams winParams = win.getAttributes();
if (on) {
winParams.flags |= bits;
} else {
winParams.flags &= ~bits;
}
win.setAttributes(winParams);
}
Why its printing 0,1,2...?
Because those are indexes of the items in array, and index always starts from 0 to array.length-1.
To print the item count instead of index, use index+1
. Like this:
<li v-for="(catalog, index) in catalogs">this index : {{index + 1}}</li>
And to show the total count use array.length
, Like this:
<p>Total Count: {{ catalogs.length }}</p>
As per DOC:
v-for also supports an optional second argument (not first) for the index of the current item.
This Solution is already TESTED.
set permissions for API in manifest.json
"permissions": [ ...
"tabs",
"activeTab",
"<all_urls>"
]
On first load call function. https://developer.chrome.com/extensions/tabs#event-onActivated
chrome.tabs.onActivated.addListener((activeInfo) => {
sendCurrentUrl()
})
On change call function. https://developer.chrome.com/extensions/tabs#event-onSelectionChanged
chrome.tabs.onSelectionChanged.addListener(() => {
sendCurrentUrl()
})
the function to get the URL
function sendCurrentUrl() {
chrome.tabs.getSelected(null, function(tab) {
var tablink = tab.url
console.log(tablink)
})
For increased performance you should not evaluate the dataframe using your predicate. You can just use the outcome of your predicate directly as illustrated below:
In [1]: import pandas as pd
import numpy as np
df = pd.DataFrame(np.random.randn(20,4),columns=list('ABCD'))
In [2]: df.head()
Out[2]:
A B C D
0 -2.019868 1.227246 -0.489257 0.149053
1 0.223285 -0.087784 -0.053048 -0.108584
2 -0.140556 -0.299735 -1.765956 0.517803
3 -0.589489 0.400487 0.107856 0.194890
4 1.309088 -0.596996 -0.623519 0.020400
In [3]: %time sum((df['A']>0) & (df['B']>0))
CPU times: user 1.11 ms, sys: 53 µs, total: 1.16 ms
Wall time: 1.12 ms
Out[3]: 4
In [4]: %time len(df[(df['A']>0) & (df['B']>0)])
CPU times: user 1.38 ms, sys: 78 µs, total: 1.46 ms
Wall time: 1.42 ms
Out[4]: 4
Keep in mind that this technique only works for counting the number of rows that comply with your predicate.
Fix the permissions of the directory you try to create a directory in.