Have a read of Geo Distance Search with MySQL, a solution based on implementation of Haversine Formula to MySQL. This is a complete solution description with theory, implementation and further performance optimization. Although the spatial optimization part didn't work correctly in my case.
I noticed two mistakes in this:
the use of abs
in the select statement on p8. I just omitted abs
and it worked.
the spatial search distance function on p27 does not convert to radians or multiply longitude by cos(latitude)
, unless his spatial data is loaded with this in consideration (cannot tell from context of article), but his example on p26 indicates that his spatial data POINT
is not loaded with radians or degrees.
Free "Export to KML" script for ArcGIS 9
Here is a list of available methods that someone found.
Also, it seems to me that the most efficient representation of a polygon layer is by using Google Maps API's polyline encoding, which significantly compresses lat-lng data. But getting into that format takes work: use ArcMap to export Shape as lat/lng coordinates, then convert into polylines using Google Maps API.
Old thread, but just only to say: to use the classic Left()
, Right()
, Mid()
right now you don't need to write the full path (Microsoft.VisualBasic.Strings
). You can use fast and easily like this:
Strings.Right(yourString, 5)
I am also a newbie to Ruby and I faced similar issues in duplicating a hash. Use the following. I've got no idea about the speed of this method.
copy_of_original_hash = Hash.new.merge(original_hash)
Use a formatter, if you only want to format it so that it renders nicely when printed. Just use the df.to_string(... formatters
to define custom string-formatting, without needlessly modifying your DataFrame or wasting memory:
df = pd.DataFrame({
'A': ['a', 'b', 'c'],
'B': [np.nan, 1, np.nan],
'C': ['read', 'unread', 'read']})
print df.to_string(
formatters={'B': lambda x: '' if pd.isnull(x) else '{:.0f}'.format(x)})
To get:
A B C
0 a read
1 b 1 unread
2 c read
For those who want to get height and width of device even when the display is resized (dynamically & in real-time):
In that Component do: import { HostListener } from "@angular/core";
In the component's class body write:
@HostListener('window:resize', ['$event'])
onResize(event?) {
this.screenHeight = window.innerHeight;
this.screenWidth = window.innerWidth;
}
In the component's constructor
call the onResize
method to initialize the variables. Also, don't forget to declare them first.
constructor() {
this.onResize();
}
Complete code:
import { Component, OnInit } from "@angular/core";
import { HostListener } from "@angular/core";
@Component({
selector: "app-login",
templateUrl: './login.component.html',
styleUrls: ['./login.component.css']
})
export class FooComponent implements OnInit {
screenHeight: number;
screenWidth: number;
constructor() {
this.getScreenSize();
}
@HostListener('window:resize', ['$event'])
getScreenSize(event?) {
this.screenHeight = window.innerHeight;
this.screenWidth = window.innerWidth;
console.log(this.screenHeight, this.screenWidth);
}
}
The main difference between fork()
and exec()
is that,
The fork()
system call creates a clone of the currently running program. The original program continues execution with the next line of code after the fork() function call. The clone also starts execution at the next line of code.
Look at the following code that i got from http://timmurphy.org/2014/04/26/using-fork-in-cc-a-minimum-working-example/
#include <stdio.h>
#include <unistd.h>
int main(int argc, char **argv)
{
printf("--beginning of program\n");
int counter = 0;
pid_t pid = fork();
if (pid == 0)
{
// child process
int i = 0;
for (; i < 5; ++i)
{
printf("child process: counter=%d\n", ++counter);
}
}
else if (pid > 0)
{
// parent process
int j = 0;
for (; j < 5; ++j)
{
printf("parent process: counter=%d\n", ++counter);
}
}
else
{
// fork failed
printf("fork() failed!\n");
return 1;
}
printf("--end of program--\n");
return 0;
}
This program declares a counter variable, set to zero, before fork()
ing. After the fork call, we have two processes running in parallel, both incrementing their own version of counter. Each process will run to completion and exit. Because the processes run in parallel, we have no way of knowing which will finish first. Running this program will print something similar to what is shown below, though results may vary from one run to the next.
--beginning of program
parent process: counter=1
parent process: counter=2
parent process: counter=3
child process: counter=1
parent process: counter=4
child process: counter=2
parent process: counter=5
child process: counter=3
--end of program--
child process: counter=4
child process: counter=5
--end of program--
The exec()
family of system calls replaces the currently executing code of a process with another piece of code. The process retains its PID but it becomes a new program. For example, consider the following code:
#include <stdio.h>
#include <unistd.h>
main() {
char program[80],*args[3];
int i;
printf("Ready to exec()...\n");
strcpy(program,"date");
args[0]="date";
args[1]="-u";
args[2]=NULL;
i=execvp(program,args);
printf("i=%d ... did it work?\n",i);
}
This program calls the execvp()
function to replace its code with the date program. If the code is stored in a file named exec1.c, then executing it produces the following output:
Ready to exec()...
Tue Jul 15 20:17:53 UTC 2008
The program outputs the line -Ready to exec() . . . ? and after calling the execvp() function, replaces its code with the date program. Note that the line - . . . did it work? is not displayed, because at that point the code has been replaced. Instead, we see the output of executing -date -u.?
I always use pseudo elements :before
and :after
for changing the appearance of checkboxes and radio buttons. it's works like a charm.
Refer this link for more info
Steps
visibility:hidden
or opacity:0
or position:absolute;left:-9999px
etc.:before
element and pass either an empty or a non-breaking space '\00a0'
;:checked
state, pass the unicode content: "\2713"
, which is a checkmark;:focus
style to make the checkbox accessible.Here is how I did it.
.box {_x000D_
background: #666666;_x000D_
color: #ffffff;_x000D_
width: 250px;_x000D_
padding: 10px;_x000D_
margin: 1em auto;_x000D_
}_x000D_
p {_x000D_
margin: 1.5em 0;_x000D_
padding: 0;_x000D_
}_x000D_
input[type="checkbox"] {_x000D_
visibility: hidden;_x000D_
}_x000D_
label {_x000D_
cursor: pointer;_x000D_
}_x000D_
input[type="checkbox"] + label:before {_x000D_
border: 1px solid #333;_x000D_
content: "\00a0";_x000D_
display: inline-block;_x000D_
font: 16px/1em sans-serif;_x000D_
height: 16px;_x000D_
margin: 0 .25em 0 0;_x000D_
padding: 0;_x000D_
vertical-align: top;_x000D_
width: 16px;_x000D_
}_x000D_
input[type="checkbox"]:checked + label:before {_x000D_
background: #fff;_x000D_
color: #333;_x000D_
content: "\2713";_x000D_
text-align: center;_x000D_
}_x000D_
input[type="checkbox"]:checked + label:after {_x000D_
font-weight: bold;_x000D_
}_x000D_
_x000D_
input[type="checkbox"]:focus + label::before {_x000D_
outline: rgb(59, 153, 252) auto 5px;_x000D_
}
_x000D_
<div class="content">_x000D_
<div class="box">_x000D_
<p>_x000D_
<input type="checkbox" id="c1" name="cb">_x000D_
<label for="c1">Option 01</label>_x000D_
</p>_x000D_
<p>_x000D_
<input type="checkbox" id="c2" name="cb">_x000D_
<label for="c2">Option 02</label>_x000D_
</p>_x000D_
<p>_x000D_
<input type="checkbox" id="c3" name="cb">_x000D_
<label for="c3">Option 03</label>_x000D_
</p>_x000D_
</div>_x000D_
</div>
_x000D_
Much more stylish using :before
and :after
body{_x000D_
font-family: sans-serif; _x000D_
}_x000D_
_x000D_
.container {_x000D_
margin-top: 50px;_x000D_
margin-left: 20px;_x000D_
margin-right: 20px;_x000D_
}_x000D_
.checkbox {_x000D_
width: 100%;_x000D_
margin: 15px auto;_x000D_
position: relative;_x000D_
display: block;_x000D_
}_x000D_
_x000D_
.checkbox input[type="checkbox"] {_x000D_
width: auto;_x000D_
opacity: 0.00000001;_x000D_
position: absolute;_x000D_
left: 0;_x000D_
margin-left: -20px;_x000D_
}_x000D_
.checkbox label {_x000D_
position: relative;_x000D_
}_x000D_
.checkbox label:before {_x000D_
content: '';_x000D_
position: absolute;_x000D_
left: 0;_x000D_
top: 0;_x000D_
margin: 4px;_x000D_
width: 22px;_x000D_
height: 22px;_x000D_
transition: transform 0.28s ease;_x000D_
border-radius: 3px;_x000D_
border: 2px solid #7bbe72;_x000D_
}_x000D_
.checkbox label:after {_x000D_
content: '';_x000D_
display: block;_x000D_
width: 10px;_x000D_
height: 5px;_x000D_
border-bottom: 2px solid #7bbe72;_x000D_
border-left: 2px solid #7bbe72;_x000D_
-webkit-transform: rotate(-45deg) scale(0);_x000D_
transform: rotate(-45deg) scale(0);_x000D_
transition: transform ease 0.25s;_x000D_
will-change: transform;_x000D_
position: absolute;_x000D_
top: 12px;_x000D_
left: 10px;_x000D_
}_x000D_
.checkbox input[type="checkbox"]:checked ~ label::before {_x000D_
color: #7bbe72;_x000D_
}_x000D_
_x000D_
.checkbox input[type="checkbox"]:checked ~ label::after {_x000D_
-webkit-transform: rotate(-45deg) scale(1);_x000D_
transform: rotate(-45deg) scale(1);_x000D_
}_x000D_
_x000D_
.checkbox label {_x000D_
min-height: 34px;_x000D_
display: block;_x000D_
padding-left: 40px;_x000D_
margin-bottom: 0;_x000D_
font-weight: normal;_x000D_
cursor: pointer;_x000D_
vertical-align: sub;_x000D_
}_x000D_
.checkbox label span {_x000D_
position: absolute;_x000D_
top: 50%;_x000D_
-webkit-transform: translateY(-50%);_x000D_
transform: translateY(-50%);_x000D_
}_x000D_
.checkbox input[type="checkbox"]:focus + label::before {_x000D_
outline: 0;_x000D_
}
_x000D_
<div class="container"> _x000D_
<div class="checkbox">_x000D_
<input type="checkbox" id="checkbox" name="" value="">_x000D_
<label for="checkbox"><span>Checkbox</span></label>_x000D_
</div>_x000D_
_x000D_
<div class="checkbox">_x000D_
<input type="checkbox" id="checkbox2" name="" value="">_x000D_
<label for="checkbox2"><span>Checkbox</span></label>_x000D_
</div>_x000D_
</div>
_x000D_
In VS2010, from the Add Rerences window you can click 'Browse' and navigate to C:\Windows\Assembly and add references to the assemblies that you want. Please note that the files may be grouped under different folders like GAC, GAC_32, GAC_64, GAC_MSIL etc.
findstr
sometimes hangs unexpectedly when searching large files.
I haven't confirmed the exact conditions or boundary sizes. I suspect any file larger 2GB may be at risk.
I have had mixed experiences with this, so it is more than just file size. This looks like it may be a variation on FINDSTR hangs on XP and Windows 7 if redirected input does not end with LF, but as demonstrated this particular problem manifests when input is not redirected.
The following command line session (Windows 7) demonstrates how findstr
can hang when searching a 3GB file.
C:\Data\Temp\2014-04>echo 1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890> T100B.txt
C:\Data\Temp\2014-04>for /L %i in (1,1,10) do @type T100B.txt >> T1KB.txt
C:\Data\Temp\2014-04>for /L %i in (1,1,1000) do @type T1KB.txt >> T1MB.txt
C:\Data\Temp\2014-04>for /L %i in (1,1,1000) do @type T1MB.txt >> T1GB.txt
C:\Data\Temp\2014-04>echo find this line>> T1GB.txt
C:\Data\Temp\2014-04>copy T1GB.txt + T1GB.txt + T1GB.txt T3GB.txt
T1GB.txt
T1GB.txt
T1GB.txt
1 file(s) copied.
C:\Data\Temp\2014-04>dir
Volume in drive C has no label.
Volume Serial Number is D2B2-FFDF
Directory of C:\Data\Temp\2014-04
2014/04/08 04:28 PM <DIR> .
2014/04/08 04:28 PM <DIR> ..
2014/04/08 04:22 PM 102 T100B.txt
2014/04/08 04:28 PM 1 020 000 016 T1GB.txt
2014/04/08 04:23 PM 1 020 T1KB.txt
2014/04/08 04:23 PM 1 020 000 T1MB.txt
2014/04/08 04:29 PM 3 060 000 049 T3GB.txt
5 File(s) 4 081 021 187 bytes
2 Dir(s) 51 881 050 112 bytes free
C:\Data\Temp\2014-04>rem Findstr on the 1GB file does not hang
C:\Data\Temp\2014-04>findstr "this" T1GB.txt
find this line
C:\Data\Temp\2014-04>rem On the 3GB file, findstr hangs and must be aborted... even though it clearly reaches end of file
C:\Data\Temp\2014-04>findstr "this" T3GB.txt
find this line
find this line
find this line
^C
C:\Data\Temp\2014-04>
Note, I've verified in a hex editor that all lines are terminated with CRLF
. The only anomaly is that the file is terminated with 0x1A
due to the way copy
works. Note however, that this anomaly doesn't cause a problem on "small" files.
With additional testing I have confirmed the following:
copy
with the /b
option for binary files prevents the addition of the 0x1A
character, and findstr
doesn't hang on the 3GB file.findstr
to hang.0x1A
character doesn't cause any problems on a "small" file. (Similarly for other terminating characters.)CRLF
after 0x1A
resolves the problem. (LF
by itself would probably suffice.)type
to pipe the file into findstr
works without hanging. (This might be due to a side effect of either type
or |
that inserts an additional End Of Line.)<
also causes findstr
to hang. But this is expected; as explained in dbenham's post: "redirected input must end in LF
".There are many ways for doing that (you might want to obfuscate the source code, you can compress it, ...). Some of these methods need additional code to transform your program in an executable form (compression, for example).
But the thing all methods cannot do, is keeping the source code secret. The other party gets your binary code, which can always be transformed (reverse-engineered) into a human-readable form again, because the binary code contains all functionality information that is provided in your source code.
If you don't have any version of SQLServerManagerXX.msc, then you simply do not have it installed. I noticed it does not come with SQL server management studio 2019.
It's available (client-connectivity tools) in the SQL Server Express edition or SQL Server Developer edition which is good for dev/test (non-production) usage.
you can achive this by calling a function also
<div [style.width.px]="getCustomeWidth()"></div>
getCustomeWidth() {
//do what ever you want here
return customeWidth;
}
Might as well throw up an actual response with my solution, which was inspired by Peter Liljenberg's:
$ mpstat | awk '$12 ~ /[0-9.]+/ { print 100 - $12"%" }'
0.75%
This will use awk
to print out 100 minus the 12th field (idle), with a percentage sign after it. awk
will only do this for a line where the 12th field has numbers and dots only ($12 ~ /[0-9]+/
).
You can also average five samples, one second apart:
$ mpstat 1 5 | awk 'END{print 100-$NF"%"}'
Test it like this:
$ mpstat 1 5 | tee /dev/tty | awk 'END{print 100-$NF"%"}'
Don't define variables in headers. Put declarations in header and definitions in one of the .c files.
In config.h
extern const char *names[];
In some .c file:
const char *names[] =
{
"brian", "stefan", "steve"
};
If you put a definition of a global variable in a header file, then this definition will go to every .c file that includes this header, and you will get multiple definition error because a varible may be declared multiple times but can be defined only once.
An object can't be null - the value of an expression can be null. It's worth making the difference clear in your mind. The value of s
isn't an object - it's a reference, which is either null or refers to an object.
And yes, you should just use
if (s == null)
Note that this will still use the overloaded == operator defined in string, but that will do the right thing.
In addition to having Lombok plugin installed, also make sure that the "Enable annotation processing
" checkbox is ticked under:
Preferences > Compiler > Annotation Processors
Note: starting with IntelliJ 2017, the "Enable Annotation Processing
" checkbox has moved to:
Settings > Build, Execution, Deployment > Compiler > Annotation Processors
import matplotlib.pyplot as plt
plt.rcParams.update({'figure.max_open_warning': 0})
If you use this, you won’t get that error, and it is the simplest way to do that.
I will explain with simple example
[1,3,2] <=> [2,2,2]
Ruby will start comparing each element of both array from left hand side.
1
for left array is smaller than 2
of right array. Hence left array is smaller than right array. Output will be -1
.
[2,3,2] <=> [2,2,2]
As above it will first compare first element which are equal then it will compare second element, in this case second element of left array is greater hence output is 1
.
Put http.request.method == "POST"
in the display filter of wireshark to only show POST requests. Click on the packet, then expand the Hypertext Transfer Protocol field. The POST data will be right there on top.
Because of the GDPR it makes no sense to use the iframe, you should rather use the object tag with the embed tag and also use the embed link.
<object width="100%" height="333">
<param name="movie" value="https://www.youtube-nocookie.com/embed/Sdg0ef2PpBw">
<embed src="https://www.youtube-nocookie.com/embed/Sdg0ef2PpBw" width="100%" height="333">
</object>
_x000D_
You should also activate the extended data protection mode function to receive the no cookie url.
type="application/x-shockwave-flash"
flash does not have to be used
Nocookie, however, means that data is still being transmitted, namely the thumbnail that is loaded from YouTube. But at least data is no longer passed on to advertising networks (as example DoubleClick). And no user data is stored on your website by youtube.
if you are add jre and jkd path, remove jre install path, keep jdk path is work
The []
makes no sense in the moment of making an ArrayList of Integers because I imagine you just want to add Integer values.
Just use
List<Integer> list = new ArrayList<>();
to create the ArrayList and it will work.
As a side note and because I was recently using the stop method provided in the accepted answer, according to this link:
https://developer.mozilla.org/en-US/docs/Web/Guide/Events/Media_events
by setting currentTime manually one may fire the 'canplaythrough' event on the audio element. In the link it mentions Firefox, but I encountered this event firing after setting currentTime manually on Chrome. So if you have behavior attached to this event you might end up in an audio loop.
You can't upload files via ajax, you need to use an iFrame or some other trickery to do a full postback. This is mainly due to security concerns.
Here's a decent write-up including a sample project using SWFUpload and ASP.Net MVC by Steve Sanderson. It's the first thing I read getting this working properly with Asp.Net MVC (I was new to MVC at the time as well), hopefully it's as helpful for you.
According to MSDN documentation for DbCommand.ExecuteScalar:
If the first column of the first row in the result set is not found, a null reference (Nothing in Visual Basic) is returned. If the value in the database is null, the query returns DBNull.Value.
Consider the following snippet:
using (var conn = new OracleConnection(...)) {
conn.Open();
var command = conn.CreateCommand();
command.CommandText = "select username from usermst where userid=2";
string getusername = (string)command.ExecuteScalar();
}
At run-time (tested under ODP.NET but should be the same under any ADO.NET provider), it behaves like this:
command.ExecuteScalar()
is null, which is then casted to a null string and assigned to getusername
.command.ExecuteScalar()
is DBNull.Value
, resulting in an InvalidCastException
.In any case, the NullReferenceException
should not be possible, so your problem probably lies elsewhere.
Download the appropriate APR based tomcat native library for your operating system so that Apache tomcat server can take some advantage of the feature of your OS which is not included by default in tomcat. For windows it will be a .dll
file.
I too got the warning while starting the server and you don't have to worry about this if you are testing or developing. This is meant to be on production purposes. After putting the tcnative-1.dll file inside the bin folder of Apache Tomcat 7 following are the output in the stderr file,
Apr 07, 2015 1:14:12 PM org.apache.catalina.core.AprLifecycleListener init
INFO: Loaded APR based Apache Tomcat Native library 1.1.33 using APR version 1.5.1.
Apr 07, 2015 1:14:12 PM org.apache.catalina.core.AprLifecycleListener init
INFO: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
Apr 07, 2015 1:14:14 PM org.apache.catalina.core.AprLifecycleListener initializeSSL
INFO: OpenSSL successfully initialized (OpenSSL 1.0.1m 19 Mar 2015)
Apr 07, 2015 1:14:14 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-apr-127.0.0.1"]
Inside the function parameter list, char arr[]
is absolutely equivalent to char *arr
, so the pair of definitions and the pair of declarations are equivalent.
void function(char arr[]) { ... }
void function(char *arr) { ... }
void function(char arr[]);
void function(char *arr);
The issue is the calling context. You provided a string literal to the function; string literals may not be modified; your function attempted to modify the string literal it was given; your program invoked undefined behaviour and crashed. All completely kosher.
Treat string literals as if they were static const char literal[] = "string literal";
and do not attempt to modify them.
You can make a json object like:
globalVariable={example_attribute:"SomeValue"};
in fileA.js
And access it from fileB.js like:
globalVariable.example_attribute
The only thing that's really wrong with this approach is that it's hard to make a very descriptive exception using assert statements. If you're looking for the simpler syntax, remember you can also do something like this:
class XLessThanZeroException(Exception):
pass
def CheckX(x):
if x < 0:
raise XLessThanZeroException()
def foo(x):
CheckX(x)
#do stuff here
Another problem is that using assert for normal condition-checking is that it makes it difficult to disable the debugging asserts using the -O flag.
Modify to suit your specifics, or make more generic as needed:
Private Sub CopyItOver()
Set NewBook = Workbooks.Add
Workbooks("Whatever.xlsx").Worksheets("output").Range("A1:K10").Copy
NewBook.Worksheets("Sheet1").Range("A1").PasteSpecial (xlPasteValues)
NewBook.SaveAs FileName:=NewBook.Worksheets("Sheet1").Range("E3").Value
End Sub
Make sure your routing.yml
file has 'id'
specified in it. In other words, it should look like:
_category:
path: /category/{id}
You need to do two things:
The code:
dtt$model <- factor(dtt$model, levels=c("mb", "ma", "mc"), labels=c("MBB", "MAA", "MCC"))
library(ggplot2)
ggplot(dtt, aes(x=year, y=V, group = model, colour = model, ymin = lower, ymax = upper)) +
geom_ribbon(alpha = 0.35, linetype=0)+
geom_line(aes(linetype=model), size = 1) +
geom_point(aes(shape=model), size=4) +
theme(legend.position=c(.6,0.8)) +
theme(legend.background = element_rect(colour = 'black', fill = 'grey90', size = 1, linetype='solid')) +
scale_linetype_discrete("Model 1") +
scale_shape_discrete("Model 1") +
scale_colour_discrete("Model 1")
However, I think this is really ugly as well as difficult to interpret. It's far better to use facets:
ggplot(dtt, aes(x=year, y=V, group = model, colour = model, ymin = lower, ymax = upper)) +
geom_ribbon(alpha=0.2, colour=NA)+
geom_line() +
geom_point() +
facet_wrap(~model)
Yeah this is referred to as a default parameter
Default function parameters allow formal parameters to be initialized with default values if no value or undefined is passed.
Syntax:
function [name]([param1[ = defaultValue1 ][, ..., paramN[ = defaultValueN ]]]) {
statements
}
Description:
Parameters of functions default to undefined However, in situations it might be useful to set a different default value. This is where default parameters can help.
In the past, the general strategy for setting defaults was to test parameter values in the body of the function and assign a value if they are undefined. If no value is provided in the call, its value would be undefined. You would have to set a conditional check to make sure the parameter is not undefined
With default parameters in ES2015, the check in the function body is no longer necessary. Now you can simply put a default value in the function head.
Example of the differences:
// OLD METHOD
function multiply(a, b) {
b = (typeof b !== 'undefined') ? b : 1;
return a * b;
}
multiply(5, 2); // 10
multiply(5, 1); // 5
multiply(5); // 5
// NEW METHOD
function multiply(a, b = 1) {
return a * b;
}
multiply(5, 2); // 10
multiply(5, 1); // 5
multiply(5); // 5
Different Syntax Examples:
Padding undefined vs other falsy values:
Even if the value is set explicitly when calling, the value of the num argument is the default one.
function test(num = 1) {
console.log(typeof num);
}
test(); // 'number' (num is set to 1)
test(undefined); // 'number' (num is set to 1 too)
// test with other falsy values:
test(''); // 'string' (num is set to '')
test(null); // 'object' (num is set to null)
Evaluated at call time:
The default argument gets evaluated at call time, so unlike some other languages, a new object is created each time the function is called.
function append(value, array = []) {
array.push(value);
return array;
}
append(1); //[1]
append(2); //[2], not [1, 2]
// This even applies to functions and variables
function callSomething(thing = something()) {
return thing;
}
function something() {
return 'sth';
}
callSomething(); //sth
Default parameters are available to later default parameters:
Params already encountered are available to later default parameters
function singularAutoPlural(singular, plural = singular + 's',
rallyingCry = plural + ' ATTACK!!!') {
return [singular, plural, rallyingCry];
}
//["Gecko","Geckos", "Geckos ATTACK!!!"]
singularAutoPlural('Gecko');
//["Fox","Foxes", "Foxes ATTACK!!!"]
singularAutoPlural('Fox', 'Foxes');
//["Deer", "Deer", "Deer ... change."]
singularAutoPlural('Deer', 'Deer', 'Deer peaceably and respectfully \ petition the government for positive change.')
Functions defined inside function body:
Introduced in Gecko 33 (Firefox 33 / Thunderbird 33 / SeaMonkey 2.30). Functions declared in the function body cannot be referred inside default parameters and throw a ReferenceError (currently a TypeError in SpiderMonkey, see bug 1022967). Default parameters are always executed first, function declarations inside the function body evaluate afterwards.
// Doesn't work! Throws ReferenceError.
function f(a = go()) {
function go() { return ':P'; }
}
Parameters without defaults after default parameters:
Prior to Gecko 26 (Firefox 26 / Thunderbird 26 / SeaMonkey 2.23 / Firefox OS 1.2), the following code resulted in a SyntaxError. This has been fixed in bug 777060 and works as expected in later versions. Parameters are still set left-to-right, overwriting default parameters even if there are later parameters without defaults.
function f(x = 1, y) {
return [x, y];
}
f(); // [1, undefined]
f(2); // [2, undefined]
Destructured paramet with default value assignment:
You can use default value assignment with the destructuring assignment notation
function f([x, y] = [1, 2], {z: z} = {z: 3}) {
return x + y + z;
}
f(); // 6
First find out the Procees id (pid) which has occupied the required port.(e.g 5434)
ps aux | grep 5434
2.kill that process
kill -9 <pid>
This is the best method I have come up with so far to incorporate extra GET methods while supporting the normal REST methods as well. Add the following routes to your WebApiConfig:
routes.MapHttpRoute("DefaultApiWithId", "Api/{controller}/{id}", new { id = RouteParameter.Optional }, new { id = @"\d+" });
routes.MapHttpRoute("DefaultApiWithAction", "Api/{controller}/{action}");
routes.MapHttpRoute("DefaultApiGet", "Api/{controller}", new { action = "Get" }, new { httpMethod = new HttpMethodConstraint(HttpMethod.Get) });
routes.MapHttpRoute("DefaultApiPost", "Api/{controller}", new {action = "Post"}, new {httpMethod = new HttpMethodConstraint(HttpMethod.Post)});
I verified this solution with the test class below. I was able to successfully hit each method in my controller below:
public class TestController : ApiController
{
public string Get()
{
return string.Empty;
}
public string Get(int id)
{
return string.Empty;
}
public string GetAll()
{
return string.Empty;
}
public void Post([FromBody]string value)
{
}
public void Put(int id, [FromBody]string value)
{
}
public void Delete(int id)
{
}
}
I verified that it supports the following requests:
GET /Test
GET /Test/1
GET /Test/GetAll
POST /Test
PUT /Test/1
DELETE /Test/1
Note That if your extra GET actions do not begin with 'Get' you may want to add an HttpGet attribute to the method.
MongoDB needs data directory to store data.
Default path is /data/db
When you start MongoDB engine, it searches this directory which is missing in your case. Solution is create this directory and assign rwx
permission to user.
If you want to change the path of your data directory then you should specify it while starting mongod server like,
mongod --dbpath /data/<path> --port <port no>
This should help you start your mongod server with custom path and port.
#scroll-wrap {
max-height: 50vh;
overflow-y: auto;
}
Using max-height
with vh
as the unit on the modal-body
or a wrapper div inside of the modal-body
. This will resize the height of modal-body
or the wrapping div(in this example) automatically when a user resize the window.
vh
is length unit representing 1% of the viewport size for viewport height.
Browser compatibility chart for vh
unit.
Example: https://jsfiddle.net/q3xwr53f/
As for the workaround (without using non-portable -P
), you can temporary replace a new-line character with the different one and change it back, e.g.:
grep -o "_foo_" <(paste -sd_ file) | tr -d '_'
Basically it's looking for exact match _foo_
where _
means \n
(so __
= \n\n
). You don't have to translate it back by tr '_' '\n'
, as each pattern would be printed in the new line anyway, so removing _
is enough.
For plaintext email using JavaScript, you may also use \r
with encodeURIComponent()
.
For example, this message:
hello\rthis answer is now well formated\rand it contains good knowleadge\rthat is why I am up voting
URI Encoded, results in:
hello%0Dthis%20answer%20is%20now%20well%20formated%0Dand%20it%20contains%20good%20knowleadge%0Dthat%20is%20why%20I%20am%20up%20voting
And, using the href:
mailto:[email protected]?body=hello%0Dthis%20answer%20is%20now%20well%20formated%0Dand%20it%20contains%20good%20knowleadge%0Dthat%20is%20why%20I%20am%20up%20voting
Will result in the following email body text:
hello
this answer is now well formated
and it contains good knowleadge
that is why I am up voting
As long as the web service methods and underlying exposed classes do not change, it's fairly trivial. With Visual Studio 2005 (and newer), adding a web reference creates an app.config (or web.config, for web apps) section that has this URL. All you have to do is edit the app.config file to reflect the desired URL.
In our project, our simple approach was to just have the app.config entries commented per environment type (development, testing, production). So we just uncomment the entry for the desired environment type. No special coding needed there.
I ran into the same issue, this was an exercise as part of a tutorial on lynda.com if I'm not wrong. The mistake I made was not selecting the runtime as Python 3.6 which is an option in the lamda function console.
The answers are commonly found in Java books.
cloning: If you don't override clone method, the default behavior is shallow copy. If your objects have only primitive member variables, it's totally ok. But in a typeless language with another object as member variables, it's a headache.
serialization/deserialization
$new_object = unserialize(serialize($your_object))
This achieves deep copy with a heavy cost depending on the complexity of the object.
Assuming you do not want to restrict the rows that are returned because you are aggregating other values as well, you can do it like this:
select count(case when Position = 'Manager' then 1 else null end) as ManagerCount
from ...
Let's say within the same column you had values of Manager, Supervisor, and Team Lead, you could get the counts of each like this:
select count(case when Position = 'Manager' then 1 else null end) as ManagerCount,
count(case when Position = 'Supervisor' then 1 else null end) as SupervisorCount,
count(case when Position = 'Team Lead' then 1 else null end) as TeamLeadCount,
from ...
IntelliJ has no option to click on a file and choose "Add to .gitignore" like Eclipse has.
The quickest way to add a file or folder to .gitignore without typos is:
Additional info: There is a .ignore plugin available for IntelliJ which adds a "Add to .gitignore" item to the popup menu when you right-click a file. It works like a charm.
I just started using docker to compile VLC, here's what you can do to copy files back and forth from containers:
su -
cd /var/lib/docker
ls -palR > /home/user/dockerfilelist.txt
Search for a familiar file in that txt and you'll have the folder, cd to it as root and voila! copy all you want.
There might be a path with "merged" in it, I guess you want the one with "diff" in it.
Also if you exit the container and want to be back where you left off:
docker ps -a
docker start -i containerid
I guess that's usefull when you didn't name anything with a command like
docker run -it registry.videolan.org:5000/vlc-debian-win64 /bin/bash
Sure the hacker method but so what!
You're on the right track. Now you just need to extract the desired group, as follows:
final Pattern pattern = Pattern.compile("<tag>(.+?)</tag>", Pattern.DOTALL);
final Matcher matcher = pattern.matcher("<tag>String I want to extract</tag>");
matcher.find();
System.out.println(matcher.group(1)); // Prints String I want to extract
If you want to extract multiple hits, try this:
public static void main(String[] args) {
final String str = "<tag>apple</tag><b>hello</b><tag>orange</tag><tag>pear</tag>";
System.out.println(Arrays.toString(getTagValues(str).toArray())); // Prints [apple, orange, pear]
}
private static final Pattern TAG_REGEX = Pattern.compile("<tag>(.+?)</tag>", Pattern.DOTALL);
private static List<String> getTagValues(final String str) {
final List<String> tagValues = new ArrayList<String>();
final Matcher matcher = TAG_REGEX.matcher(str);
while (matcher.find()) {
tagValues.add(matcher.group(1));
}
return tagValues;
}
However, I agree that regular expressions are not the best answer here. I'd use XPath to find elements I'm interested in. See The Java XPath API for more info.
It's pandas
label-based selection, as explained here: https://pandas.pydata.org/pandas-docs/stable/indexing.html#selection-by-label
The boolean array is basically a selection method using a mask.
Sometimes OPTIONS verb as well causes problems
Simply: Update your web.config with the following
<system.webServer>
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*" />
<add name="Access-Control-Allow-Headers" value="Origin, X-Requested-With, Content-Type, Accept" />
</customHeaders>
</httpProtocol>
</system.webServer>
And update the webservice/controller headers with httpGet and httpOptions
// GET api/Master/Sync/?version=12121
[HttpGet][HttpOptions]
public dynamic Sync(string version)
{
Try this:
var funcNames = ["log", "warn", "error"];
var colors = ['color:green', 'color:orange', 'color:red'];
for (var i = 0; i < funcNames.length; i++) {
let funcName = funcNames[i];
let color = colors[i];
let oldFunc = console[funcName];
console[funcName] = function () {
var args = Array.prototype.slice.call(arguments);
if (args.length) args = ['%c' + args[0]].concat(color, args.slice(1));
oldFunc.apply(null, args);
};
}
now they all are as you wanted:
console.log("Log is green.");
console.warn("Warn is orange.");
console.error("Error is red.");
note: formatting like console.log("The number = %d", 123);
is not broken.
The webserver is returning an http 500 error code. These errors generally happen when an exception in thrown on the webserver and there's no logic to catch it so it spits out an http 500 error. You can usually resolve the problem by placing try-catch blocks in your code.
// This was my example that I used to automatically resize every inserted photo to 100 by 50 pixel and image format to jpeg hope this helps too
if($result){
$maxDimW = 100;
$maxDimH = 50;
list($width, $height, $type, $attr) = getimagesize( $_FILES['photo']['tmp_name'] );
if ( $width > $maxDimW || $height > $maxDimH ) {
$target_filename = $_FILES['photo']['tmp_name'];
$fn = $_FILES['photo']['tmp_name'];
$size = getimagesize( $fn );
$ratio = $size[0]/$size[1]; // width/height
if( $ratio > 1) {
$width = $maxDimW;
$height = $maxDimH/$ratio;
} else {
$width = $maxDimW*$ratio;
$height = $maxDimH;
}
$src = imagecreatefromstring(file_get_contents($fn));
$dst = imagecreatetruecolor( $width, $height );
imagecopyresampled($dst, $src, 0, 0, 0, 0, $width, $height, $size[0], $size[1] );
imagejpeg($dst, $target_filename); // adjust format as needed
}
move_uploaded_file($_FILES['pdf']['tmp_name'],"pdf/".$_FILES['pdf']['name']);
I was actually running into some strange errors with mp4's a while ago. What fixed it for me was re-encoding the video using known supported codecs (H.264 & MP3).
I actually used the VLC player to do so and it worked fine afterward. I converted using the mentioned codecs H.264/MP3. That solved it for me.
Maybe the problem is not in the format
but in the JavaScript
implementation of the play/ pause
methods. May I suggest visiting the following link where Google developer explains it in a good way?
Additionally, you could choose to use the newer webp
format, which Chrome supports out of the box, but be careful with other browsers. Check the support for it before implementation. Here's a link that describes the mentioned format.
On that note: I've created a small script
that easily converts all standard formats to webp
. You can easily configure it to fit your needs. Here's the Github repo of the same projects.
declare @start int = 1000
declare @end int =1050
;with numcte
AS
(
SELECT @start [SEQUENCE]
UNION all
SELECT [SEQUENCE] + 1 FROM numcte WHERE [SEQUENCE] < @end
)
SELECT * FROM numcte
"Short version: dump your production database into a git repository for an instant backup solution."
This saved my life--->
set this line
ListView.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
Then in your manifest in activity tag type this-->
<activity android:windowSoftInputMode="adjustPan">
Your usual intent
I had this issue when working on a Java Project in Debian 10 with Tomcat as the application server.
The issue was that the application already had https defined as it's default protocol while I was using http to call the application in the browser. So when I try running the application I get this error in my log file:
INFO [http-nio-80-exec-4461] org.apache.coyote.http11.AbstractHttp11Processor.process Error parsing HTTP request header
Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level.
java.lang.IllegalArgumentException: Invalid character found in method name. HTTP method names must be tokens
I however tried using the https protocol in the browser but it didn't connect throwing the error:
Here's how I solved it:
You need a certificate to setup the https protocol for the application. You can obtain certificates from Let's Encrypt. For me the easiest route was creating a obtaining a self-signed certificate. .
I first had to create a keystore file for the application, more like a self-signed certificate for the https protocol:
sudo keytool -genkey -keyalg RSA -alias tomcat -keystore /usr/share/tomcat.keystore
Note: You need to have Java installed on the server to be able to do this. Java can be installed using sudo apt install default-jdk
.
Next, I added a https Tomcat server connector for the application in the Tomcat server configuration file (/opt/tomcat/conf/server.xml
):
sudo nano /opt/tomcat/conf/server.xml
Add the following to the configuration of the application. Notice that the keystore file location and password are specified. Also a port for the https protocol is defined, which is different from the port for the http protocol:
<Connector protocol="org.apache.coyote.http11.Http11Protocol"
port="8443" maxThreads="200" scheme="https"
secure="true" SSLEnabled="true"
keystoreFile="/usr/share/tomcat.keystore"
keystorePass="my-password"
clientAuth="false" sslProtocol="TLS"
URIEncoding="UTF-8"
compression="force"
compressableMimeType="text/html,text/xml,text/plain,text/javascript,text/css"/>
So the full server configuration for the application looked liked this in the Tomcat server configuration file (/opt/tomcat/conf/server.xml
):
<Service name="my-application">
<Connector protocol="org.apache.coyote.http11.Http11Protocol"
port="8443" maxThreads="200" scheme="https"
secure="true" SSLEnabled="true"
keystoreFile="/usr/share/tomcat.keystore"
keystorePass="my-password"
clientAuth="false" sslProtocol="TLS"
URIEncoding="UTF-8"
compression="force"
compressableMimeType="text/html,text/xml,text/plain,text/javascript,text/css"/>
<Connector port="8009" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
<Engine name="my-application" defaultHost="localhost">
<Realm className="org.apache.catalina.realm.LockOutRealm">
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
</Realm>
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true">
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
prefix="localhost_access_log" suffix=".txt"
pattern="%h %l %u %t "%r" %s %b" />
</Host>
</Engine>
</Service>
This time when I tried accessing the application from the browser using:
https://my-server-ip-address:https-port
In my case it was:
https:35.123.45.6:8443
it worked fine. Although, I had to accept a warning which added a security exception for the website since the certificate used is a self-signed one.
That's all.
I hope this helps
Tiny addition to this very old thread..
If your'e evaluating an expression inside a for
/while
loop with a ternary operator, and want to continue
or break
as a result - you're gonna have a problem because both continue
&break
aren't expressions, they're statements without any value.
This will produce Uncaught SyntaxError: Unexpected token continue
for (const item of myArray) {
item.value ? break : continue;
}
If you really want a one-liner that returns a statement, you can use this instead:
for (const item of myArray) {
if (item.value) break; else continue;
}
Here is my solution, gathered from different sources: Server side implementation :
String contentType = MediaType.APPLICATION_OCTET_STREAM_VALUE;
// Set headers
response.setHeader("content-disposition", "attachment; filename =" + fileName);
response.setContentType(contentType);
// Copy file to output stream
ServletOutputStream servletOutputStream = response.getOutputStream();
try (InputStream inputStream = new FileInputStream(file)) {
IOUtils.copy(inputStream, servletOutputStream);
} finally {
servletOutputStream.flush();
Utils.closeQuitely(servletOutputStream);
fileToDownload = null;
}
Client side implementation (using jquery):
$.ajax({
type: 'POST',
contentType: 'application/json',
url: <download file url>,
data: JSON.stringify(postObject),
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert(errorThrown);
},
success: function(message, textStatus, response) {
var header = response.getResponseHeader('Content-Disposition');
var fileName = header.split("=")[1];
var blob = new Blob([message]);
var link = document.createElement('a');
link.href = window.URL.createObjectURL(blob);
link.download = fileName;
link.click();
}
});
GROUP BY can be selected from Total row in query design view in MS Access.
If Total row not shown in design view (as in my case). You can go to SQL View and add GROUP By fname etc. Then Total row will automatically show in design view.
You have to select as Expression in this row for calculated fields.
Shouldn't it always be "$ORACLE_ HOME/network/admin/tnsnames.ora"? Then you can just do "echo $oracle_ home" or the *nix equivalent.
@Pete Holberton You are entirely correct. Which reminds me, there's another monkey wrench in the works called TWO_ TASK
According http://www.orafaq.com/wiki/TNS_ADMIN
TNS_ADMIN is an environment variable that points to the directory where the SQL*Net configuration files (like sqlnet.ora and tnsnames.ora) are located.
There is also an AngularJS module called angular-gestures which is based on hammer.js: https://github.com/wzr1337/angular-gestures
I just came across a similar problem. Try
require './st.rb'
This should do the trick.
I had the same problem but it had nothing to do with annotations. The problem happened while indexing beans in my container (Jboss EAP 6.3). One of my beans could not be indexed because it used Java 8 features an I got this sneaky little warning while deploying:
WARN [org.jboss.as.server.deployment] ... Could not index class ... java.lang.IllegalStateException: Unknown tag! pos=20 poolCount = 133
Then at the injection point I got the error:
Unsatisfied dependencies for type ... with qualifiers @Default
The solution is to update the Java annotations index. download new version of jandex (jandex-1.2.3.Final or newer) then put it into
JBOSS_HOME\modules\system\layers\base\org\jboss\jandex\main and then update reference to the new file in module.xml
NOTE: EAP 6.4.x already have this fixed
Ok, I'll take a stab at this. If you want to work with PHP, you will need to install and configure both PHP and a webserver on your machine. This article might get you started: PHP Manual: Installation on Windows systems
Once you have your environment setup, you can start working with webforms. Directly From the article: Processing form data with PHP:
For this example you will need to create two pages. On the first page we will create a simple HTML form to collect some data. Here is an example:
<html> <head> <title>Test Page</title> </head> <body> <h2>Data Collection</h2><p> <form action="process.php" method="post"> <table> <tr> <td>Name:</td> <td><input type="text" name="Name"/></td> </tr> <tr> <td>Age:</td> <td><input type="text" name="Age"/></td> </tr> <tr> <td colspan="2" align="center"> <input type="submit"/> </td> </tr> </table> </form> </body> </html>
This page will send the Name and Age data to the page process.php. Now lets create process.php to use the data from the HTML form we made:
<?php
print "Your name is ". $Name;
print "<br />";
print "You are ". $Age . " years old";
print "<br />"; $old = 25 + $Age;
print "In 25 years you will be " . $old . " years old";
?>
As you may be aware, if you leave out the method="post" part of the form, the URL with show the data. For example if your name is Bill Jones and you are 35 years old, our process.php page will display as http://yoursite.com/process.php?Name=Bill+Jones&Age=35 If you want, you can manually change the URL in this way and the output will change accordingly.
Additional JavaScript Example
This single file example takes the html from your question and ties the onSubmit event of the form to a JavaScript function that pulls the values of the 2 textboxes and displays them in an alert box.
Note: document.getElementById("fname").value
gets the object with the ID
tag that equals fname
and then pulls it's value
- which in this case is the text in the First Name textbox.
<html>
<head>
<script type="text/javascript">
function ExampleJS(){
var jFirst = document.getElementById("fname").value;
var jLast = document.getElementById("lname").value;
alert("Your name is: " + jFirst + " " + jLast);
}
</script>
</head>
<body>
<FORM NAME="myform" onSubmit="JavaScript:ExampleJS()">
First name: <input type="text" id="fname" name="firstname" /><br />
Last name: <input type="text" id="lname" name="lastname" /><br />
<input name="Submit" type="submit" value="Update" />
</FORM>
</body>
</html>
This repo on github seems to do the job quite well:
https://github.com/blackspikeltd/Xaml-Spinners-WPF
The spinners are all light weight and can easily be placed wherever needed. There is a sample project included in the repo that shows how to use them.
No nasty code-behinds with a bunch of logic either. If MVVM support is needed, one can just take these and throw them in a Grid with a Visibility binding.
Lets Have A little Fun
using System;
using System.Timers;
namespace TimerExample
{
class Program
{
static Timer timer = new Timer(1000);
static int i = 10;
static void Main(string[] args)
{
timer.Elapsed+=timer_Elapsed;
timer.Start(); Console.Read();
}
private static void timer_Elapsed(object sender, ElapsedEventArgs e)
{
i--;
Console.Clear();
Console.WriteLine("=================================================");
Console.WriteLine(" DEFUSE THE BOMB");
Console.WriteLine("");
Console.WriteLine(" Time Remaining: " + i.ToString());
Console.WriteLine("");
Console.WriteLine("=================================================");
if (i == 0)
{
Console.Clear();
Console.WriteLine("");
Console.WriteLine("==============================================");
Console.WriteLine(" B O O O O O M M M M M ! ! ! !");
Console.WriteLine("");
Console.WriteLine(" G A M E O V E R");
Console.WriteLine("==============================================");
timer.Close();
timer.Dispose();
}
GC.Collect();
}
}
}
The problem with standard pings is they're ICMP, which a lot of places don't let through for security and traffic reasons. That might explain the failure.
Ruby prior to 1.9 had a TCP-based ping.rb
, which will run with Ruby 1.9+. All you have to do is copy it from the 1.8.7 installation to somewhere else. I just confirmed that it would run by pinging my home router.
Online Viewstate Viewer made by Lachlan Keown:
http://lachlankeown.blogspot.com/2008/05/online-viewstate-viewer-decoder.html
Using Array#select
will give you an array of elements that meet the criteria. But if you're looking for a way of getting the element out of the array that meets your criteria, Enumerable#detect
would be a better way to go:
array = [1,2,3]
found = array.select {|e| e == 3} #=> [3]
found = array.detect {|e| e == 3} #=> 3
Otherwise you'd have to do something awkward like:
found = array.select {|e| e == 3}.first
I agree with the event emitting and v-model answers for those above. However, I thought I would post what I found about components with multiple form elements that want to emit back to their parent since this seems one of the first articles returned by google.
I know the question specifies a single input, but this seemed the closest match and might save people some time with similar vue components. Also, no one has mentioned the .sync
modifier yet.
As far as I know, the v-model
solution is only suited to one input returning to their parent. I took a bit of time looking for it but Vue (2.3.0) documentation does show how to sync multiple props sent into the component back to the parent (via emit of course).
It is appropriately called the .sync
modifier.
Here is what the documentation says:
In some cases, we may need “two-way binding” for a prop. Unfortunately, true two-way binding can create maintenance issues, because child components can mutate the parent without the source of that mutation being obvious in both the parent and the child.
That’s why instead, we recommend emitting events in the pattern of
update:myPropName
. For example, in a hypothetical component with atitle
prop, we could communicate the intent of assigning a new value with:
this.$emit('update:title', newTitle)
Then the parent can listen to that event and update a local data property, if it wants to. For example:
<text-document
v-bind:title="doc.title"
v-on:update:title="doc.title = $event"
></text-document>
For convenience, we offer a shorthand for this pattern with the .sync modifier:
<text-document v-bind:title.sync="doc.title"></text-document>
You can also sync multiple at a time by sending through an object. Check out the documentation here
a sleaker way to match special chars:
/\W|_/g
\W Matches any character that is not a word character (alphanumeric & underscore).
Underscore is considered a special character so add boolean to either match a special character or _
Take a look at Serialization, a technique to "convert" an entire object to a byte stream. You may send it to the network or write it into a file and then restore it back to an object later.
You can maintain your html as it is but use this php code
<?php
$name = $_POST['name'];
$purchase1 = $_POST['Tea'];
$purchase2 =$_POST['Coffee'];
?>
A javascript Object does not have a standard .each function. jQuery provides a function. See http://api.jquery.com/jQuery.each/ The below should work
$.each(object, function(index, value) {
console.log(value);
});
Another option would be to use vanilla Javascript using the Object.keys()
and the Array .map()
functions like this
Object.keys(object).map(function(objectKey, index) {
var value = object[objectKey];
console.log(value);
});
See https://developer.mozilla.org/nl/docs/Web/JavaScript/Reference/Global_Objects/Object/keys and https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map
These are usually better than using a vanilla Javascript for-loop, unless you really understand the implications of using a normal for-loop and see use for it's specific characteristics like looping over the property chain.
But usually, a for-loop doesn't work better than jQuery
or Object.keys().map()
. I'll go into two potential issues with using a plain for-loop below.
Right, so also pointed out in other answers, a plain Javascript alternative would be
for(var index in object) {
var attr = object[index];
}
There are two potential issues with this:
1 . You want to check whether the attribute that you are finding is from the object itself and not from up the prototype chain. This can be checked with the hasOwnProperty
function like so
for(var index in object) {
if (object.hasOwnProperty(index)) {
var attr = object[index];
}
}
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty for more information.
The jQuery.each
and Object.keys
functions take care of this automatically.
2 . Another potential issue with a plain for-loop is that of scope and non-closures. This is a bit complicated, but take for example the following code. We have a bunch of buttons with ids button0, button1, button2 etc, and we want to set an onclick on them and do a console.log
like this:
<button id='button0'>click</button>
<button id='button1'>click</button>
<button id='button2'>click</button>
var messagesByButtonId = {"button0" : "clicked first!", "button1" : "clicked middle!", "button2" : "clicked last!"];
for(var buttonId in messagesByButtonId ) {
if (messagesByButtonId.hasOwnProperty(buttonId)) {
$('#'+buttonId).click(function() {
var message = messagesByButtonId[buttonId];
console.log(message);
});
}
}
If, after some time, we click any of the buttons we will always get "clicked last!" in the console, and never "clicked first!" or "clicked middle!". Why? Because at the time that the onclick function is executed, it will display messagesByButtonId[buttonId]
using the buttonId
variable at that moment. And since the loop has finished at that moment, the buttonId
variable will still be "button2" (the value it had during the last loop iteration), and so messagesByButtonId[buttonId]
will be messagesByButtonId["button2"]
, i.e. "clicked last!".
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Closures for more information on closures. Especially the last part of that page that covers our example.
Again, jQuery.each
and Object.keys().map()
solve this problem automatically for us, because it provides us with a function(index, value)
(that has closure) so we are safe to use both index and value and rest assured that they have the value that we expect.
Here is another cause to add to the collection on this page. In this code...
<link rel="stylesheet" type="text/css" href="styles/styles.css" media="screen">
...I misspelled rel
as ref
.
the simple way I believe is to import it then export it, using the certificate manager in Windows Management Console.
This is just an example. You may like to customize it as per your requirement.
$.ajax({
url: 'ajax/test1.html',
success: function(data1) {
alert('Request 1 was performed.');
$.ajax({
type: 'POST',
url: url,
data: data1, //pass data1 to second request
success: successHandler, // handler if second request succeeds
dataType: dataType
});
}
});
For more details : see this
What about the ansicolors library? You can simple do:
from colors import color, red, blue
# common colors
print(red('This is red'))
print(blue('This is blue'))
# colors by name or code
print(color('Print colors by name or code', 'white', '#8a2be2'))
If the number of your messages is limited then the following may help. I used jQuery for the following example, but it works with plain js too.
The innerHtml property did not work for me. So I experimented with ...
<div id=successAndErrorMessages-1>100% OK</div>
<div id=successAndErrorMessages-2>This is an error mssg!</div>
and toggled one of the two on/off ...
$("#successAndErrorMessages-1").css('display', 'none')
$("#successAndErrorMessages-2").css('display', '')
For some reason I had to fiddle around with the ordering before it worked in all types of browsers.
After reading all of this, I might just embed a hyperlink in the email body like this:
To reply to this email, click here <a href="mailto:...">[email protected]</a>
Have you actually gone to your references and added a .NET reference to the 'Microsoft.Office.Core' library? If you downloaded the example application, the answer would be yes. If that is the case, follow the advice in the article:
If your system does not have Microsoft Office Outlook 2003 you may have to change the References used by the "OutlookConnector" project. That is to say, if you received a build error described as "The type of namespace name 'Outlook' could not be found", you probably don't have Office 2003. Simply expand the project references, remove the afflicted items, and add the COM Library appropriate for your system. If someone has a dynamic way to handle this, I'd be curious to see you've done.
That should solve your problem. If not, let us know.
This worked for me: (notice that java 8 is required)
String requestData = request.getReader().lines().collect(Collectors.joining());
UserJsonParser u = gson.fromJson(requestData, UserJsonParser.class);
UserJsonParse is a class that shows gson how to parse the json formant.
class is like that:
public class UserJsonParser {
private String username;
private String name;
private String lastname;
private String mail;
private String pass1;
//then put setters and getters
}
the json string that is parsed is like that:
$jsonData: { "username": "testuser", "pass1": "clave1234" }
The rest of values (mail, lastname, name) are set to null
You can use T-SQL to convert the date before it gets to your .NET program. This often is simpler if you don't need to do additional date conversion in your .NET program.
DECLARE @Date DATETIME = Getdate()
DECLARE @DateInt INT = CONVERT(VARCHAR(30), @Date, 112)
DECLARE @TimeInt INT = REPLACE(CONVERT(VARCHAR(30), @Date, 108), ':', '')
DECLARE @DateTimeInt BIGINT = CONVERT(VARCHAR(30), @Date, 112) + REPLACE(CONVERT(VARCHAR(30), @Date, 108), ':', '')
SELECT @Date as Date, @DateInt DateInt, @TimeInt TimeInt, @DateTimeInt DateTimeInt
Date DateInt TimeInt DateTimeInt
------------------------- ----------- ----------- --------------------
2013-01-07 15:08:21.680 20130107 150821 20130107150821
Just for a more animated and cute solution:
$(window).scroll(function(){
$("#div").stop().animate({"marginTop": ($(window).scrollTop()) + "px", "marginLeft":($(window).scrollLeft()) + "px"}, "slow" );
});
And a pen for those who want to see: http://codepen.io/think123/full/mAxlb, and fork: http://codepen.io/think123/pen/mAxlb
Update: and a non-animated jQuery solution:
$(window).scroll(function(){
$("#div").css({"margin-top": ($(window).scrollTop()) + "px", "margin-left":($(window).scrollLeft()) + "px"});
});
It's not built into the SDK, but you can use the Zxing library. It's free, open source, and Apache-licensed.
The 2016 recommendation is to use the Barcode API, which also works offline.
fun pushNotification(message: String?, clickAtion: String?) {
val ii = Intent(clickAtion)
ii.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
val pendingIntent = PendingIntent.getActivity(this, REQUEST_CODE, ii, PendingIntent.FLAG_ONE_SHOT)
val soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)
val largIcon = BitmapFactory.decodeResource(applicationContext.resources,
R.mipmap.ic_launcher)
val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
val channelId = "default_channel_id"
val channelDescription = "Default Channel"
// Since android Oreo notification channel is needed.
//Check if notification channel exists and if not create one
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
var notificationChannel = notificationManager.getNotificationChannel(channelId)
if (notificationChannel != null) {
val importance = NotificationManager.IMPORTANCE_HIGH //Set the importance level
notificationChannel = NotificationChannel(channelId, channelDescription, importance)
// notificationChannel.lightColor = Color.GREEN //Set if it is necesssary
notificationChannel.enableVibration(true) //Set if it is necesssary
notificationManager.createNotificationChannel(notificationChannel)
val noti_builder = NotificationCompat.Builder(this)
.setContentTitle("MMH")
.setContentText(message)
.setSmallIcon(R.drawable.ic_launcher_background)
.setChannelId(channelId)
.build()
val random = Random()
val id = random.nextInt()
notificationManager.notify(id,noti_builder)
}
}
else
{
val notificationBuilder = NotificationCompat.Builder(this)
.setSmallIcon(R.mipmap.ic_launcher).setColor(resources.getColor(R.color.colorPrimary))
.setVibrate(longArrayOf(200, 200, 0, 0, 0))
.setContentTitle(getString(R.string.app_name))
.setLargeIcon(largIcon)
.setContentText(message)
.setAutoCancel(true)
.setStyle(NotificationCompat.BigTextStyle().bigText(message))
.setSound(soundUri)
.setContentIntent(pendingIntent)
val random = Random()
val id = random.nextInt()
notificationManager.notify(id, notificationBuilder.build())
}
}
As others have suggested, the best way to do this is to use a join instead of variable assignment. Re-writing your query to use a join (and using the explicit join syntax instead of the implicit join, which was also suggested--and is the best practice), you would get something like this:
select
OrderDetails.Sku,
OrderDetails.mf_item_number,
OrderDetails.Qty,
OrderDetails.Price,
Supplier.SupplierId,
Supplier.SupplierName,
Supplier.DropShipFees,
Supplier_Item.Price as cost
from
OrderDetails
join Supplier on OrderDetails.Mfr_ID = Supplier.SupplierId
join Group_Master on Group_Master.Sku = OrderDetails.Sku
join Supplier_Item on
Supplier_Item.SKU=OrderDetails.Sku and Supplier_Item.SupplierId=Supplier.SupplierID
where
invoiceid='339740'
You can tell EF which properties have to be updated in this way:
public void ChangePassword(int userId, string password)
{
var user = new User { Id = userId, Password = password };
using (var context = new ObjectContext(ConnectionString))
{
var users = context.CreateObjectSet<User>();
users.Attach(user);
context.ObjectStateManager.GetObjectStateEntry(user)
.SetModifiedProperty("Password");
context.SaveChanges();
}
}
I found this query which helped me find my locked table and query causing the issue.
SELECT L.request_session_id AS SPID,
DB_NAME(L.resource_database_id) AS DatabaseName,
O.Name AS LockedObjectName,
P.object_id AS LockedObjectId,
L.resource_type AS LockedResource,
L.request_mode AS LockType,
ST.text AS SqlStatementText,
ES.login_name AS LoginName,
ES.host_name AS HostName,
TST.is_user_transaction as IsUserTransaction,
AT.name as TransactionName,
CN.auth_scheme as AuthenticationMethod
FROM sys.dm_tran_locks L
JOIN sys.partitions P ON P.hobt_id = L.resource_associated_entity_id
JOIN sys.objects O ON O.object_id = P.object_id
JOIN sys.dm_exec_sessions ES ON ES.session_id = L.request_session_id
JOIN sys.dm_tran_session_transactions TST ON ES.session_id = TST.session_id
JOIN sys.dm_tran_active_transactions AT ON TST.transaction_id = AT.transaction_id
JOIN sys.dm_exec_connections CN ON CN.session_id = ES.session_id
CROSS APPLY sys.dm_exec_sql_text(CN.most_recent_sql_handle) AS ST
WHERE resource_database_id = db_id()
ORDER BY L.request_session_id
My current solution is the following (with RTTI disabled - you could use std::type_index, too):
#include <type_traits>
#include <iostream>
#include <tuple>
class Type
{
};
template<typename T>
class TypeImpl : public Type
{
};
template<typename T>
inline Type* typeOf() {
static Type* typePtr = new TypeImpl<T>();
return typePtr;
}
/* ------------- */
template<
typename Calling
, typename Result = void
, typename From
, typename Action
>
inline Result DoComplexDispatch(From* from, Action&& action);
template<typename Cls>
class ChildClasses
{
public:
using type = std::tuple<>;
};
template<typename... Childs>
class ChildClassesHelper
{
public:
using type = std::tuple<Childs...>;
};
//--------------------------
class A;
class B;
class C;
class D;
template<>
class ChildClasses<A> : public ChildClassesHelper<B, C, D> {};
template<>
class ChildClasses<B> : public ChildClassesHelper<C, D> {};
template<>
class ChildClasses<C> : public ChildClassesHelper<D> {};
//-------------------------------------------
class A
{
public:
virtual Type* GetType()
{
return typeOf<A>();
}
template<
typename T,
bool checkType = true
>
/*virtual*/void DoVirtualGeneric()
{
if constexpr (checkType)
{
return DoComplexDispatch<A>(this, [&](auto* other) -> decltype(auto)
{
return other->template DoVirtualGeneric<T, false>();
});
}
std::cout << "A";
}
};
class B : public A
{
public:
virtual Type* GetType()
{
return typeOf<B>();
}
template<
typename T,
bool checkType = true
>
/*virtual*/void DoVirtualGeneric() /*override*/
{
if constexpr (checkType)
{
return DoComplexDispatch<B>(this, [&](auto* other) -> decltype(auto)
{
other->template DoVirtualGeneric<T, false>();
});
}
std::cout << "B";
}
};
class C : public B
{
public:
virtual Type* GetType() {
return typeOf<C>();
}
template<
typename T,
bool checkType = true
>
/*virtual*/void DoVirtualGeneric() /*override*/
{
if constexpr (checkType)
{
return DoComplexDispatch<C>(this, [&](auto* other) -> decltype(auto)
{
other->template DoVirtualGeneric<T, false>();
});
}
std::cout << "C";
}
};
class D : public C
{
public:
virtual Type* GetType() {
return typeOf<D>();
}
};
int main()
{
A* a = new A();
a->DoVirtualGeneric<int>();
}
// --------------------------
template<typename Tuple>
class RestTuple {};
template<
template<typename...> typename Tuple,
typename First,
typename... Rest
>
class RestTuple<Tuple<First, Rest...>> {
public:
using type = Tuple<Rest...>;
};
// -------------
template<
typename CandidatesTuple
, typename Result
, typename From
, typename Action
>
inline constexpr Result DoComplexDispatchInternal(From* from, Action&& action, Type* fromType)
{
using FirstCandidate = std::tuple_element_t<0, CandidatesTuple>;
if constexpr (std::tuple_size_v<CandidatesTuple> == 1)
{
return action(static_cast<FirstCandidate*>(from));
}
else {
if (fromType == typeOf<FirstCandidate>())
{
return action(static_cast<FirstCandidate*>(from));
}
else {
return DoComplexDispatchInternal<typename RestTuple<CandidatesTuple>::type, Result>(
from, action, fromType
);
}
}
}
template<
typename Calling
, typename Result
, typename From
, typename Action
>
inline Result DoComplexDispatch(From* from, Action&& action)
{
using ChildsOfCalling = typename ChildClasses<Calling>::type;
if constexpr (std::tuple_size_v<ChildsOfCalling> == 0)
{
return action(static_cast<Calling*>(from));
}
else {
auto fromType = from->GetType();
using Candidates = decltype(std::tuple_cat(std::declval<std::tuple<Calling>>(), std::declval<ChildsOfCalling>()));
return DoComplexDispatchInternal<Candidates, Result>(
from, std::forward<Action>(action), fromType
);
}
}
The only thing I don't like is that you have to define/register all child classes.
I had the same problem and I solved by using the postcast server. You can install it locally and use it.
As per my answer to a similar question, here:
Linq to SQL left outer join using Lambda syntax and joining on 2 columns (composite join key)
Get the code here, or clone my github repo, and play!
Query:
var petOwners =
from person in People
join pet in Pets
on new
{
person.Id,
person.Age,
}
equals new
{
pet.Id,
Age = pet.Age * 2, // owner is twice age of pet
}
into pets
from pet in pets.DefaultIfEmpty()
select new PetOwner
{
Person = person,
Pet = pet,
};
Lambda:
var petOwners = People.GroupJoin(
Pets,
person => new { person.Id, person.Age },
pet => new { pet.Id, Age = pet.Age * 2 },
(person, pet) => new
{
Person = person,
Pets = pet,
}).SelectMany(
pet => pet.Pets.DefaultIfEmpty(),
(people, pet) => new
{
people.Person,
Pet = pet,
});
Why do you say generics are out of the picture?
public static object GetDefault(Type t)
{
Func<object> f = GetDefault<object>;
return f.Method.GetGenericMethodDefinition().MakeGenericMethod(t).Invoke(null, null);
}
private static T GetDefault<T>()
{
return default(T);
}
This worked for me, the key is you need a separate thread to analyze the socket state with polling. doing it in the same thread as the socket fails detection.
//open or receive a server socket - TODO your code here
socket = new Socket(....);
//enable the keep alive so we can detect closure
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, true);
//create a thread that checks every 5 seconds if the socket is still connected. TODO add your thread starting code
void MonitorSocketsForClosureWorker() {
DateTime nextCheckTime = DateTime.Now.AddSeconds(5);
while (!exitSystem) {
if (nextCheckTime < DateTime.Now) {
try {
if (socket!=null) {
if(socket.Poll(5000, SelectMode.SelectRead) && socket.Available == 0) {
//socket not connected, close it if it's still running
socket.Close();
socket = null;
} else {
//socket still connected
}
}
} catch {
socket.Close();
} finally {
nextCheckTime = DateTime.Now.AddSeconds(5);
}
}
Thread.Sleep(1000);
}
}
I think it is important to mention, now that this question is over 1 year old, that Socket.IO has since come out and seems to be the primary way to work with sockets in the browser now; it is also compatible with Node.js as far as I know.
You can use apache commons langs like this :
WordUtils.capitalizeFully("this is a text to be capitalize")
you can find the java doc here : WordUtils.capitalizeFully java doc
and if you want to remove the spaces in between the worlds you can use :
StringUtils.remove(WordUtils.capitalizeFully("this is a text to be capitalize")," ")
you can find the java doc for String StringUtils.remove java doc
i hope this help.
I recommend to use the JS library entities. Using the library is quite simple. See the examples from docs:
const entities = require("entities");
//encoding
entities.escape("&"); // "&#38;"
entities.encodeXML("&"); // "&#38;"
entities.encodeHTML("&"); // "&#38;"
//decoding
entities.decodeXML("asdf & ÿ ü '"); // "asdf & ÿ ü '"
entities.decodeHTML("asdf & ÿ ü '"); // "asdf & ÿ ü '"
I think here "inflating a view" means fetching the layout.xml file drawing a view specified in that xml file and POPULATING ( = inflating ) the parent viewGroup with the created View.
I recently stumbled up on the same problem. Here is the synopsis of my solution:
Basic constituent code blocks needed
The following are the required basic code blocks of your client application
What modules do you need?
Many suggested to use Python modules such as urllib2 ; however, none of the modules work-at least for this particular project.
So, here is the list of the modules you need to get. First of all, you need to download and install the latest version of suds from the following link:
pypi.python.org/pypi/suds-jurko/0.4.1.jurko.2
Additionally, you need to download and install requests and suds_requests modules from the following links respectively ( disclaimer: I am new to post in here, so I can't post more than one link for now).
pypi.python.org/pypi/requests
pypi.python.org/pypi/suds_requests/0.1
Once you successfully download and install these modules, you are good to go.
The code
Following the steps outlined earlier, the code looks like the following: Imports:
import logging
from suds.client import Client
from suds.wsse import *
from datetime import timedelta,date,datetime,tzinfo
import requests
from requests.auth import HTTPBasicAuth
import suds_requests
Session request and authentication:
username=input('Username:')
password=input('password:')
session = requests.session()
session.auth=(username, password)
Create the Client:
client = Client(WSDL_URL, faults=False, cachingpolicy=1, location=WSDL_URL, transport=suds_requests.RequestsTransport(session))
Add WS-Security Header:
...
addSecurityHeader(client,username,password)
....
def addSecurityHeader(client,username,password):
security=Security()
userNameToken=UsernameToken(username,password)
timeStampToken=Timestamp(validity=600)
security.tokens.append(userNameToken)
security.tokens.append(timeStampToken)
client.set_options(wsse=security)
Please note that this method creates the security header depicted in Fig.1. So, your implementation may vary depending on the correct security header format provided by the owner of the service you are consuming.
Consume the relevant method (or operation) :
result=client.service.methodName(Inputs)
Logging:
One of the best practices in such implementations as this one is logging to see how the communication is executed. In case there is some issue, it makes debugging easy. The following code does basic logging. However, you can log many aspects of the communication in addition to the ones depicted in the code.
logging.basicConfig(level=logging.INFO)
logging.getLogger('suds.client').setLevel(logging.DEBUG)
logging.getLogger('suds.transport').setLevel(logging.DEBUG)
Result:
Here is the result in my case. Note that the server returned HTTP 200. This is the standard success code for HTTP request-response.
(200, (collectionNodeLmp){
timestamp = 2014-12-03 00:00:00-05:00
nodeLmp[] =
(nodeLmp){
pnodeId = 35010357
name = "YADKIN"
mccValue = -0.19
mlcValue = -0.13
price = 36.46
type = "500 KV"
timestamp = 2014-12-03 01:00:00-05:00
errorCodeId = 0
},
(nodeLmp){
pnodeId = 33138769
name = "ZION 1"
mccValue = -0.18
mlcValue = -1.86
price = 34.75
type = "Aggregate"
timestamp = 2014-12-03 01:00:00-05:00
errorCodeId = 0
},
})
I know that this is an old question, but it was the first answer on a Google search, so it seems relevant. I recently had this same problem. The solution in my case was to just use the Public Suffix List:
https://publicsuffix.org/learn/
The suggested language specific libraries listed should all allow for easy validation of not just domain format, but also top level domain validity.
I have the same problem. I usually resort to String#split
:
"ABCDEFG".split("").each do |i|
puts i
end
I guess you could also implement it yourself like this:
class String
def each_char
self.split("").each { |i| yield i }
end
end
Edit: yet another alternative is String#each_byte
, available in Ruby 1.8.6, which returns the ASCII value of each char in an ASCII string:
"ABCDEFG".each_byte do |i|
puts i.chr # Fixnum#chr converts any number to the ASCII char it represents
end
protected override bool IsInputKey(Keys keyData)
{
if (((keyData & Keys.Up) == Keys.Up)
|| ((keyData & Keys.Down) == Keys.Down)
|| ((keyData & Keys.Left) == Keys.Left)
|| ((keyData & Keys.Right) == Keys.Right))
return true;
else
return base.IsInputKey(keyData);
}
e.which doesn't work in IE try e.keyCode, also you probably want to use keydown() instead of keypress() if you are targeting IE.
See http://unixpapa.com/js/key.html for more information.
To load your data in WebView. Call loadData() method of WebView
webView.loadData(yourData, "text/html; charset=utf-8", "UTF-8");
You can check this example
http://developer.android.com/reference/android/webkit/WebView.html
If you really want to create an array rather than a list use either
String[] names = ["lucas", "Fred", "Mary"]
or
def names = ["lucas", "Fred", "Mary"].toArray()
From the DOCS
Formats a number as text. Group sizing and separator and other locale-specific configurations are based on the active locale.
SYNTAX:
number_expression | number[:digitInfo[:locale]]
where expression
is a number:
digitInfo
is a string which has a following format:
{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}
Make sure Your TableView Delegate are working as well. if not then in your story board or in .xib press and hold Control + right click on tableView drag and Drop to your Current ViewController. swift 2.0
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 60.0;
}
A solution for me:
$old_ErrorActionPreference = $ErrorActionPreference
$ErrorActionPreference = 'SilentlyContinue'
if((Get-PSSessionConfiguration -Name "MyShellUri" -ErrorAction SilentlyContinue) -eq $null) {
WriteTraceForTrans "The session configuration MyShellUri is already unregistered."
}
else {
#Unregister-PSSessionConfiguration -Name "MyShellUri" -Force -ErrorAction Ignore
}
$ErrorActionPreference = $old_ErrorActionPreference
Or use try-catch
try {
(Get-PSSessionConfiguration -Name "MyShellUri" -ErrorAction SilentlyContinue)
}
catch {
}
Similar to other answers but more succinct:
'use strict';
const interfaces = require('os').networkInterfaces();
const addresses = Object.keys(interfaces)
.reduce((results, name) => results.concat(interfaces[name]), [])
.filter((iface) => iface.family === 'IPv4' && !iface.internal)
.map((iface) => iface.address);
If you can use JQuery, then using the JQuery :focus selector will do the needful
$(this).is(':focus');
Just improved phihag's code because it runs into a infinite loop if file not exists.
<?php
$filename = "so-csv.csv";
echo "<html><body><table>\n\n";
if (file_exists($filename)) {
$f = fopen($filename, "r");
while (($line = fgetcsv($f)) !== false) {
echo "<tr>";
foreach ($line as $cell) {
echo "<td>" . htmlspecialchars($cell) . "</td>";
}
echo "</tr>\n";
}
fclose($f);
}
else{ echo "<tr><td>No file exists ! </td></tr>" ;}
echo "\n</table></body></html>";
?>
For another un-free option try edtFTPnet/PRO. It has comprehensive support for SFTP, and also supports FTPS (and of course FTP) if required.
$watch first parameter can be angular expression or function. See documentation on $scope.$watch. It contains a lot of useful info about how $watch method works: when watchExpression is called, how angular compares results, etc.
This was the easiest way for me to uninstall all python packages.
from pip import get_installed_distributions
from os import system
for i in get_installed_distributions():
system("pip3 uninstall {} -y -q".format(i.key))
DazWorrall's answer is spot on. Here's a variation that might be useful if your code is structured differently than the OP's:
num_rows_deleted = db.session.query(Model).delete()
Also, don't forget that the deletion won't take effect until you commit, as in this snippet:
try:
num_rows_deleted = db.session.query(Model).delete()
db.session.commit()
except:
db.session.rollback()
Your application is not able to connect to activemq. Check that your activemq is running and listening on localhost 61616.
You can try using: netstat -a
to check if the activemq process has started. Or try check if you can access your actvemq using admin page: localhost:8161/admin/queues.jsp
On mac you will start your activemq using:
$ACTMQ_HOME/bin/activemq start
Or if your config file (activemq.xml ) if located in another location you can use:
$ACTMQ_HOME/bin/activemq start xbean:file:${location_of_your_config_file}
In your case the executable is under: bin/macosx/activemq
so you need to use: $ACTMQ_HOME/bin/macosx/activemq start
To redirect your logs output to a file, you need to use the FileAppender and need to define other file details in your log4j.properties/xml file. Here is a sample properties file for the same:
# Root logger option
log4j.rootLogger=INFO, file
# Direct log messages to a log file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=C:\\loging.log
log4j.appender.file.MaxFileSize=1MB
log4j.appender.file.MaxBackupIndex=1
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
Follow this tutorial to learn more about log4j usage:
http://www.mkyong.com/logging/log4j-log4j-properties-examples/
Yes. Look at Cython. It does just that: Converts Python to C for speedups.
To get it done only with XAML you need to add Validation Rules for individual properties. But i would recommend you to go with code behind approach. In your code, define your specifications in properties setters and throw exceptions when ever it doesn't compliance to your specifications. And use error template to display your errors to user in UI. Your XAML will look like this
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<Style x:Key="CustomTextBoxTextStyle" TargetType="TextBox">
<Setter Property="Foreground" Value="Green" />
<Setter Property="MaxLength" Value="40" />
<Setter Property="Width" Value="392" />
<Style.Triggers>
<Trigger Property="Validation.HasError" Value="True">
<Trigger.Setters>
<Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self},Path=(Validation.Errors)[0].ErrorContent}"/>
<Setter Property="Background" Value="Red"/>
</Trigger.Setters>
</Trigger>
</Style.Triggers>
</Style>
</Window.Resources>
<Grid>
<TextBox Name="tb2" Height="30" Width="400"
Text="{Binding Name, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged, ValidatesOnExceptions=True}"
Style="{StaticResource CustomTextBoxTextStyle}"/>
</Grid>
Code Behind:
public partial class MainWindow : Window
{
private ExampleViewModel m_ViewModel;
public MainWindow()
{
InitializeComponent();
m_ViewModel = new ExampleViewModel();
DataContext = m_ViewModel;
}
}
public class ExampleViewModel : INotifyPropertyChanged
{
private string m_Name = "Type Here";
public ExampleViewModel()
{
}
public string Name
{
get
{
return m_Name;
}
set
{
if (String.IsNullOrEmpty(value))
{
throw new Exception("Name can not be empty.");
}
if (value.Length > 12)
{
throw new Exception("name can not be longer than 12 charectors");
}
if (m_Name != value)
{
m_Name = value;
OnPropertyChanged("Name");
}
}
}
public event PropertyChangedEventHandler PropertyChanged;
protected void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}
As of 2016 I used datetimepicker like this:
$(function () {
$('#date_box').datetimepicker({
format: 'YYYY-MM-DD hh:mm'
});
});
(Ah, just re-read your question and see that this doesn't quite apply.)
Here is a sample program that makes uses the python logging module. This logging module has been in all versions since 2.3. In this sample the logging is configurable by command line options.
In quite mode it will only log to a file, in normal mode it will log to both a file and the console.
import os
import sys
import logging
from optparse import OptionParser
def initialize_logging(options):
""" Log information based upon users options"""
logger = logging.getLogger('project')
formatter = logging.Formatter('%(asctime)s %(levelname)s\t%(message)s')
level = logging.__dict__.get(options.loglevel.upper(),logging.DEBUG)
logger.setLevel(level)
# Output logging information to screen
if not options.quiet:
hdlr = logging.StreamHandler(sys.stderr)
hdlr.setFormatter(formatter)
logger.addHandler(hdlr)
# Output logging information to file
logfile = os.path.join(options.logdir, "project.log")
if options.clean and os.path.isfile(logfile):
os.remove(logfile)
hdlr2 = logging.FileHandler(logfile)
hdlr2.setFormatter(formatter)
logger.addHandler(hdlr2)
return logger
def main(argv=None):
if argv is None:
argv = sys.argv[1:]
# Setup command line options
parser = OptionParser("usage: %prog [options]")
parser.add_option("-l", "--logdir", dest="logdir", default=".", help="log DIRECTORY (default ./)")
parser.add_option("-v", "--loglevel", dest="loglevel", default="debug", help="logging level (debug, info, error)")
parser.add_option("-q", "--quiet", action="store_true", dest="quiet", help="do not log to console")
parser.add_option("-c", "--clean", dest="clean", action="store_true", default=False, help="remove old log file")
# Process command line options
(options, args) = parser.parse_args(argv)
# Setup logger format and output locations
logger = initialize_logging(options)
# Examples
logger.error("This is an error message.")
logger.info("This is an info message.")
logger.debug("This is a debug message.")
if __name__ == "__main__":
sys.exit(main())
use OPENQUERY and befor Execute set 'SET FMTONLY OFF; SET NOCOUNT ON;'
Try this sample code:
SELECT top(1)*
FROM
OPENQUERY( [Server], 'SET FMTONLY OFF; SET NOCOUNT ON; EXECUTE [database].[dbo].[storedprocedure] value,value ')
'1060'
is four characters, and won't compile under the standard. You should just treat the character as a number, if your wide characters match 1:1 with Unicode (check your locale settings).
int main (){
wchar_t f = 1060;
wcout << f << endl;
}
How to execute Python scripts in Windows?
You could install pylauncher. It is used to launch .py, .pyw, .pyc, .pyo files and supports multiple Python installations:
T\:> blah.py argument
You can run your Python script without specifying .py extension if you have .py, .pyw in PATHEXT environment variable:
T:\> blah argument
It adds support for shebang (#!
header line) to select desired Python version on Windows if you have multiple versions installed. You could use *nix-compatible syntax #! /usr/bin/env python
.
You can specify version explicitly e.g., to run using the latest installed Python 3 version:
T:\> py -3 blah.py argument
It should also fix your sys.argv
issue as a side-effect.
I know the original posters question was solved, but I came here via Google, and the various answers eventually led me to discovering that my SQL was dumped with a different default charset than the one used to import it. I got the same error as the original question, but as our dump was piped into another MySQL client, we couldn't go the route of opening it with another tool and saving it differently.
For us, the solution turned out to be the --default-character-set=utf8mb4
option, to be used both on the call of mysqldump
as well as the call to import it via mysql
. Of course, the value of the parameter may differ for others facing the same problem, it's just important to keep it the same, as the servers (or the tools) default setting might be any charset.
You have two options:
Define a named class. Pass your parameter to the constructor of the named class.
Have your anonymous class close over your "parameter". Be sure to mark it as final
.
JohannesD's answer is correct, but I feel it isn't entirely clear on an aspect of the problem.
The example he gives declares and initializes the variable i
in case 1, and then tries to use it in case 2. His argument is that if the switch went straight to case 2, i
would be used without being initialized, and this is why there's a compilation error. At this point, one could think that there would be no problem if variables declared in a case were never used in other cases. For example:
switch(choice) {
case 1:
int i = 10; // i is never used outside of this case
printf("i = %d\n", i);
break;
case 2:
int j = 20; // j is never used outside of this case
printf("j = %d\n", j);
break;
}
One could expect this program to compile, since both i
and j
are used only inside the cases that declare them. Unfortunately, in C++ it doesn't compile: as Ciro Santilli ???? ???? ??? explained, we simply can't jump to case 2:
, because this would skip the declaration with initialization of i
, and even though case 2
doesn't use i
at all, this is still forbidden in C++.
Interestingly, with some adjustments (an #ifdef
to #include
the appropriate header, and a semicolon after the labels, because labels can only be followed by statements, and declarations do not count as statements in C), this program does compile as C:
// Disable warning issued by MSVC about scanf being deprecated
#ifdef _MSC_VER
#define _CRT_SECURE_NO_WARNINGS
#endif
#ifdef __cplusplus
#include <cstdio>
#else
#include <stdio.h>
#endif
int main() {
int choice;
printf("Please enter 1 or 2: ");
scanf("%d", &choice);
switch(choice) {
case 1:
;
int i = 10; // i is never used outside of this case
printf("i = %d\n", i);
break;
case 2:
;
int j = 20; // j is never used outside of this case
printf("j = %d\n", j);
break;
}
}
Thanks to an online compiler like http://rextester.com you can quickly try to compile it either as C or C++, using MSVC, GCC or Clang. As C it always works (just remember to set STDIN!), as C++ no compiler accepts it.
Tools-> Options-> Select no proxy is worked for me
In IDLE and the interactive python, you entered two consecutive CRLF which brings you out of the if statement. It's the problem of IDLE or interactive python. It will be ok when you using any kind of editor, just make sure your indentation is right.
You can also use the FormData Objects; The FormData object lets you compile a set of key/value pairs to send using XMLHttpRequest. Its primarily intended for use in sending form data, but can be used independently from forms in order to transmit keyed data.
var formElement = document.getElementById("myform_id");
var formData = new FormData(formElement);
console.log(formData);
With Log4j2, this can be achieved using the following utility method added to your code.
private static void setLogLevel() {
if (Boolean.getBoolean("log4j.debug")) {
Configurator.setLevel(System.getProperty("log4j.logger"), Level.DEBUG);
}
}
You need these imports
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.core.config.Configurator;
Now invoke the setLogLevel
method in your main() or whereever appropriate and pass command line params -Dlog4j.logger=com.mypackage.Thingie
and -Dlog4j.debug=true
.
You can split date month year from current date as follows:
DateTime todaysDate = DateTime.Now.Date;
Day:
int day = todaysDate.Day;
Month:
int month = todaysDate.Month;
Year:
int year = todaysDate.Year;
Just simply add or die(mysqli_error($db));
at the end of your query, this will print the mysqli error.
mysqli_query($db,"INSERT INTO stockdetails (`itemdescription`,`itemnumber`,`sellerid`,`purchasedate`,`otherinfo`,`numberofitems`,`isitdelivered`,`price`) VALUES ('$itemdescription','$itemnumber','$sellerid','$purchasedate','$otherinfo','$numberofitems','$numberofitemsused','$isitdelivered','$price')") or die(mysqli_error($db));
As a side note I'd say you are at risk of mysql injection
, check here How can I prevent SQL injection in PHP?. You should really use prepared statements to avoid any risk.
If save to a JSON file, the best and easiest way of doing this is:
import json
with open("file.json", "wb") as f:
f.write(json.dumps(dict).encode("utf-8"))
Setting isBodyHtml
to true
allows you to use HTML tags in the message body:
msg = new MailMessage("[email protected]",
"[email protected]", "Message from PSSP System",
"This email sent by the PSSP system<br />" +
"<b>this is bold text!</b>");
msg.IsBodyHtml = true;
This one worked for me
Private Sub TextBox1_KeyDown(ByVal KeyCode As MSForms.ReturnInteger, ByVal Shift As Integer)
If KeyCode = 13 Then
Button1_Click
End If
End Sub
Semicolon should be at the end of the class definition rather than after the name:
class WordGame
{
};
I was getting the same error.. i have done following
Now add leading/trailing/top/bottom for scrollView(2) then UIView(3).
Select View(1) and View(3) set equally height and weight.. its solved my issue.
I have done the video that will help :
XSD:
XSD (XML Schema Definition) specifies how to formally describe the elements in an Extensible Markup Language (XML) document.
Xml:
XML was designed to describe data.It is independent from software as well as hardware.
It enhances the following things.
-Data sharing.
-Platform independent.
-Increasing the availability of Data.
Differences:
XSD is based and written on XML.
XSD defines elements and structures that can appear in the document, while XML does not.
XSD ensures that the data is properly interpreted, while XML does not.
An XSD document is validated as XML, but the opposite may not always be true.
XSD is better at catching errors than XML.
An XSD defines elements that can be used in the documents, relating to the actual data with which it is to be encoded.
for eg:
A date that is expressed as 1/12/2010 can either mean January 12 or December 1st. Declaring a date data type in an XSD document, ensures that it follows the format dictated by XSD.
Maybe you can try to use the function gc()
. A call of gc()
causes a garbage collection to take place. It can be useful to call gc()
after a large object has been removed, as this may prompt R to return memory to the operating system.
gc()
also return a summary of the occupy memory.
For Western Arabic numbers (0-9):
$words = preg_replace('/[0-9]+/', '', $words);
For all numerals including Western Arabic (e.g. Indian):
$words = '????';
$words = preg_replace('/\d+/u', '', $words);
var_dump($words); // string(0) ""
\d+
matches multiple numerals./u
enables unicode string treatment. This modifier is important, otherwise the numerals would not match.To view vector std::vector myVector contents, just type in GDB:
(gdb) print myVector
This will produce an output similar to:
$1 = std::vector of length 3, capacity 4 = {10, 20, 30}
To achieve above, you need to have gdb 7 (I tested it on gdb 7.01) and some python pretty-printer. Installation process of these is described on gdb wiki.
What is more, after installing above, this works well with Eclipse C++ debugger GUI (and any other IDE using GDB, as I think).
"C:\Users\zero\AppData\Local\Google\Chrome\Application\chrome.exe"
.Paste the value into Location of the item, and append --kiosk <your url>
:
"C:\Users\zero\AppData\Local\Google\Chrome\Application\chrome.exe" --kiosk http://www.google.com
Press Apply, then OK.
Yes, Daniel is correct, but to expand upon his answer, your primary app component would need to have a navbar component within it. That way, when you render the primary app (any page under the '/' path), it would also display the navbar. I am guessing that you wouldn't want your login page to display the navbar, so that shouldn't be a nested component, and should instead be by itself. So your routes would end up looking something like this:
<Router>
<Route path="/" component={App}>
<Route path="page1" component={Page1} />
<Route path="page2" component={Page2} />
</Route>
<Route path="/login" component={Login} />
</Router>
And the other components would look something like this:
var NavBar = React.createClass({
render() {
return (
<div>
<ul>
<a onClick={() => history.push('page1') }>Page 1</a>
<a onClick={() => history.push('page2') }>Page 2</a>
</ul>
</div>
)
}
});
var App = React.createClass({
render() {
return (
<div>
<NavBar />
<div>Other Content</div>
{this.props.children}
</div>
)
}
});
If anyone would like the answer in Swift :
var blurEffect = UIBlurEffect(style: UIBlurEffectStyle.Dark) // Change .Dark into .Light if you'd like.
var blurView = UIVisualEffectView(effect: blurEffect)
blurView.frame = theImage.bounds // 'theImage' is an image. I think you can apply this to the view too!
Update :
As of now, it's available under the IB so you don't have to code anything for it :)
I had tried many different solutions. This was the only one that worked for me in that it was able to pick up on styles applied at class level and at style as directly attributed on the element. So a font set at css file level and one as a style attribute; it returned the correct font.
It is simple! (Sorry, can't find where I originally found it)
//-- html object
var element = htmlObject; //e.g document.getElementById
//-- or jquery object
var element = htmlObject[0]; //e.g $(selector)
var stylearray = document.defaultView.getComputedStyle(element, null);
var font = stylearray["font-family"]
Alternatively you can list all the style by cycling through the array
for (var key in stylearray) {
console.log(key + ': ' + stylearray[key];
}
Convert tuple to list:
>>> t = ('my', 'name', 'is', 'mr', 'tuple')
>>> t
('my', 'name', 'is', 'mr', 'tuple')
>>> list(t)
['my', 'name', 'is', 'mr', 'tuple']
Convert list to tuple:
>>> l = ['my', 'name', 'is', 'mr', 'list']
>>> l
['my', 'name', 'is', 'mr', 'list']
>>> tuple(l)
('my', 'name', 'is', 'mr', 'list')
This way worked very well in my situation. I just added some modifications based on other code presented in this thread.
import sys, os
orig_stdout = sys.stdout # capture original state of stdout
te = open('log.txt','w') # File where you need to keep the logs
class Unbuffered:
def __init__(self, stream):
self.stream = stream
def write(self, data):
self.stream.write(data)
self.stream.flush()
te.write(data) # Write the data of stdout here to a text file as well
sys.stdout=Unbuffered(sys.stdout)
#######################################
## Feel free to use print function ##
#######################################
print("Here is an Example =)")
#######################################
## Feel free to use print function ##
#######################################
# Stop capturing printouts of the application from Windows CMD
sys.stdout = orig_stdout # put back the original state of stdout
te.flush() # forces python to write to file
te.close() # closes the log file
# read all lines at once and capture it to the variable named sys_prints
with open('log.txt', 'r+') as file:
sys_prints = file.readlines()
# erase the file contents of log file
open('log.txt', 'w').close()
Have you looked under Advanced Security Settings?
something like below image change permissions of folder to IIS_IUSRS
Take a random sample without replacement of the indices, sort the indices, and take them from the original.
indices = random.sample(range(len(myList)), K)
[myList[i] for i in sorted(indices)]
Or more concisely:
[x[1] for x in sorted(random.sample(enumerate(myList),K))]
You can alternatively use a math trick and iteratively go through myList
from left to right, picking numbers with dynamically-changing probability (N-numbersPicked)/(total-numbersVisited)
. The advantage of this approach is that it's an O(N)
algorithm since it doesn't involve sorting!
from __future__ import division
def orderedSampleWithoutReplacement(seq, k):
if not 0<=k<=len(seq):
raise ValueError('Required that 0 <= sample_size <= population_size')
numbersPicked = 0
for i,number in enumerate(seq):
prob = (k-numbersPicked)/(len(seq)-i)
if random.random() < prob:
yield number
numbersPicked += 1
Proof of concept and test that probabilities are correct:
Simulated with 1 trillion pseudorandom samples over the course of 5 hours:
>>> Counter(
tuple(orderedSampleWithoutReplacement([0,1,2,3], 2))
for _ in range(10**9)
)
Counter({
(0, 3): 166680161,
(1, 2): 166672608,
(0, 2): 166669915,
(2, 3): 166667390,
(1, 3): 166660630,
(0, 1): 166649296
})
Probabilities diverge from true probabilities by less a factor of 1.0001. Running this test again resulted in a different order meaning it isn't biased towards one ordering. Running the test with fewer samples for [0,1,2,3,4], k=3
and [0,1,2,3,4,5], k=4
had similar results.
edit: Not sure why people are voting up wrong comments or afraid to upvote... NO, there is nothing wrong with this method. =)
(Also a useful note from user tegan in the comments: If this is python2, you will want to use xrange, as usual, if you really care about extra space.)
edit: Proof: Considering the uniform distribution (without replacement) of picking a subset of k
out of a population seq
of size len(seq)
, we can consider a partition at an arbitrary point i
into 'left' (0,1,...,i-1) and 'right' (i,i+1,...,len(seq)). Given that we picked numbersPicked
from the left known subset, the remaining must come from the same uniform distribution on the right unknown subset, though the parameters are now different. In particular, the probability that seq[i]
contains a chosen element is #remainingToChoose/#remainingToChooseFrom
, or (k-numbersPicked)/(len(seq)-i)
, so we simulate that and recurse on the result. (This must terminate since if #remainingToChoose == #remainingToChooseFrom, then all remaining probabilities are 1.) This is similar to a probability tree that happens to be dynamically generated. Basically you can simulate a uniform probability distribution by conditioning on prior choices (as you grow the probability tree, you pick the probability of the current branch such that it is aposteriori the same as prior leaves, i.e. conditioned on prior choices; this will work because this probability is uniformly exactly N/k).
edit: Timothy Shields mentions Reservoir Sampling, which is the generalization of this method when len(seq)
is unknown (such as with a generator expression). Specifically the one noted as "algorithm R" is O(N) and O(1) space if done in-place; it involves taking the first N element and slowly replacing them (a hint at an inductive proof is also given). There are also useful distributed variants and miscellaneous variants of reservoir sampling to be found on the wikipedia page.
edit: Here's another way to code it below in a more semantically obvious manner.
from __future__ import division
import random
def orderedSampleWithoutReplacement(seq, sampleSize):
totalElems = len(seq)
if not 0<=sampleSize<=totalElems:
raise ValueError('Required that 0 <= sample_size <= population_size')
picksRemaining = sampleSize
for elemsSeen,element in enumerate(seq):
elemsRemaining = totalElems - elemsSeen
prob = picksRemaining/elemsRemaining
if random.random() < prob:
yield element
picksRemaining -= 1
from collections import Counter
Counter(
tuple(orderedSampleWithoutReplacement([0,1,2,3], 2))
for _ in range(10**5)
)
In your Safari menu bar click Safari > Preferences & then select the Advanced tab.
Select: "Show Develop menu in menu bar"
Now you can click Develop in your menu bar and choose Show Web Inspector
You can also right-click and press "Inspect element".
PySpark provides various filtering options based on arithmetic, logical and other conditions. Presence of NULL values can hamper further processes. Removing them or statistically imputing them could be a choice.
Below set of code can be considered:
# Dataset is df
# Column name is dt_mvmt
# Before filtering make sure you have the right count of the dataset
df.count() # Some number
# Filter here
df = df.filter(df.dt_mvmt.isNotNull())
# Check the count to ensure there are NULL values present (This is important when dealing with large dataset)
df.count() # Count should be reduced if NULL values are present
recyclerView.removeAllViewsInLayout();
The above line would help you remove all views from the layout.
For you:
@Override
protected void onRestart() {
super.onRestart();
recyclerView.removeAllViewsInLayout(); //removes all the views
//then reload the data
PostCall doPostCall = new PostCall(); //my AsyncTask...
doPostCall.execute();
}
Before proceeding, ensure that you: Have completed a full database backup!
Step 1: Database Level Changes
Identifying the Collation and Character set of your database
SELECT DEFAULT_CHARACTER_SET_NAME, DEFAULT_COLLATION_NAME FROM
information_schema.SCHEMATA S
WHERE schema_name = 'your_database_name'
AND
(DEFAULT_CHARACTER_SET_NAME != 'utf8'
OR
DEFAULT_COLLATION_NAME not like 'utf8%');
Fixing the collation for the database
ALTER DATABASE databasename CHARACTER SET utf8 COLLATE utf8_unicode_ci;
Step 2: Table Level Changes
Identifying Database Tables with the incorrect character set or collation
SELECT CONCAT(
'ALTER TABLE ', table_name, ' CHARACTER SET utf8 COLLATE utf8_general_ci; ',
'ALTER TABLE ', table_name, ' CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci; ')
FROM information_schema.TABLES AS T, information_schema.`COLLATION_CHARACTER_SET_APPLICABILITY` AS C
WHERE C.collation_name = T.table_collation
AND T.table_schema = 'your_database_name'
AND
(C.CHARACTER_SET_NAME != 'utf8'
OR
C.COLLATION_NAME not like 'utf8%')
Adjusting table columns' collation and character set
Capture upper sql output and run it. (like following)
ALTER TABLE rma CHARACTER SET utf8 COLLATE utf8_general_ci;ALTER TABLE rma CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
ALTER TABLE rma_history CHARACTER SET utf8 COLLATE utf8_general_ci;ALTER TABLE rma_history CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
ALTER TABLE rma_products CHARACTER SET utf8 COLLATE utf8_general_ci;ALTER TABLE rma_products CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
ALTER TABLE rma_report_period CHARACTER SET utf8 COLLATE utf8_general_ci;ALTER TABLE rma_report_period CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
ALTER TABLE rma_reservation CHARACTER SET utf8 COLLATE utf8_general_ci;ALTER TABLE rma_reservation CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
ALTER TABLE rma_supplier_return CHARACTER SET utf8 COLLATE utf8_general_ci;ALTER TABLE rma_supplier_return CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
ALTER TABLE rma_supplier_return_history CHARACTER SET utf8 COLLATE utf8_general_ci;ALTER TABLE rma_supplier_return_history CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
ALTER TABLE rma_supplier_return_product CHARACTER SET utf8 COLLATE utf8_general_ci;ALTER TABLE rma_supplier_return_product CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
Be very careful: NULL is a macro used mainly for pointers. The standard way of terminating a string is:
char *buffer;
...
buffer[end_position] = '\0';
This (below) works also but it is not a big difference between assigning an integer value to a int/short/long array and assigning a character value. This is why the first version is preferred and personally I like it better.
buffer[end_position] = 0;
Use .closest()
with a selector:
var $div = $('#divid').closest('div[class^="div-a"]');
Just add 20 minutes in milliseconds to your date:
var currentDate = new Date();
currentDate.setTime(currentDate.getTime() + 20*60*1000);
You can also do this,
<?php
if ( ($cart->count_product) > 0) {
$print .= "<div class='my_class'>"
$print .= $cart->count_product;
$print .= "</div>"
} else {
$print = '';
}
echo $print;
?>
There is not a way to directly get the version out, but there are two work-arounds that could be done.
The version could be stored in a resource string, and placed into the manifest by:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.somepackage"
android:versionName="@string/version" android:versionCode="20">
One could create a custom view, and place it into the XML. The view would use this to assign the name:
context.getPackageManager().getPackageInfo(context.getPackageName(), 0).versionName;
Either of these solutions would allow for placing the version name in XML. Unfortunately there isn't a nice simple solution, like android.R.string.version
or something like that.
Upgraded from EF5 to EF6 nuget a while back and kept encountering this issue. I'd temp fix it by updating the generated code to reference System.Data.Entity.Core.Objects
, but after generation it would be changed back again (as expected since its generated).
This solved the problem for good:
http://msdn.microsoft.com/en-us/data/upgradeef6
If you have any models created with the EF Designer, you will need to update the code generation templates to generate EF6 compatible code. Note: There are currently only EF 6.x DbContext Generator templates available for Visual Studio 2012 and 2013.
- Delete existing code-generation templates. These files will typically be named <edmx_file_name>.tt and <edmx_file_name>.Context.tt and be nested under your edmx file in Solution Explorer. You can select the templates in Solution Explorer and press the Del key to delete them.
Note: In Web Site projects the templates will not be nested under your edmx file, but listed alongside it in Solution Explorer.
Note: In VB.NET projects you will need to enable 'Show All Files' to be able to see the nested template files.- Add the appropriate EF 6.x code generation template. Open your model in the EF Designer, right-click on the design surface and select Add Code Generation Item...
- If you are using the DbContext API (recommended) then EF 6.x DbContext Generator will be available under the Data tab.
Note: If you are using Visual Studio 2012, you will need to install the EF 6 Tools to have this template. See Get Entity Framework for details.- If you are using the ObjectContext API then you will need to select the Online tab and search for EF 6.x EntityObject Generator.
- If you applied any customizations to the code generation templates you will need to re-apply them to the updated templates.
I move the whole directory from my Windows installation to a unix production server and I got the same error. To fix it, I just ran these two lines in unix and everything started to run fine
rm -rf app/cache/*
rm -rf app/logs/*
I see this hasn't been answered as final.
I see you have max-width as 100% and width as 600. Flip those.
A simple way also is:
<img src="image.png" style="max-width:600px;width:100%">
I use this often, and then you can control individual images as well, and not have it on all img tags. You could CSS it also like below.
.image600{
width:100%;
max-width:600px;
}
<img src="image.png" class="image600">
With .Net Framework 4.5 (using ZipArchive):
using (ZipArchive zip = ZipFile.Open(zipfile, ZipArchiveMode.Read))
foreach (ZipArchiveEntry entry in zip.Entries)
if(entry.Name == "myfile")
entry.ExtractToFile("myfile");
Find "myfile" in zipfile and extract it.
If you're deploying on Windows, the Windows Script Host offers a very useful JScript API to the file system and other local resources. Incorporating WSH scripts into a local web application may not be as elegant as you might wish, however.
A good way of going about this is not to use nargin
, but to check whether the variables have been set using exist('opt', 'var')
.
Example:
function [a] = train(x, y, opt)
if (~exist('opt', 'var'))
opt = true;
end
end
See this answer for pros of doing it this way: How to check whether an argument is supplied in function call?
ORA-01031: insufficient privileges
happens when the object exists in the schema but do not have any access to that object.
ORA-00942: table or view does not exist
happens when the object does not exist in the current schema. If the object exists in another schema, you need to access it using .. Still you can get insufficient privileges error if the owner has not given access to the calling schema.
I've similar problem with MacOS
sed -i '' 's/oldword/newword/' file1.txt
doesn't works, but
sed -i"any_symbol" 's/oldword/newword/' file1.txt
works well.
div {
display: flex;
justify-content: space-between;
}
_x000D_
<div>
<p>Item one</p>
<a>Item two</a>
</div>
_x000D_
Just to be crystal clear, this works nicely with paragraphs and headers etc. You just need to specify display: block
.
For instance:
<h5 style="display: block; text-overflow: ellipsis; white-space: nowrap; overflow: hidden">
This is a really long title, but it won't exceed the parent width
</h5>
(forgive the inline styles)
This is what worked for me. Issue is earlier I didn't set Content Type(header) when I used exchange method.
MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
map.add("param1", "123");
map.add("param2", "456");
map.add("param3", "789");
map.add("param4", "123");
map.add("param5", "456");
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
final HttpEntity<MultiValueMap<String, String>> entity = new HttpEntity<MultiValueMap<String, String>>(map ,
headers);
JSONObject jsonObject = null;
try {
RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> responseEntity = restTemplate.exchange(
"https://url", HttpMethod.POST, entity,
String.class);
if (responseEntity.getStatusCode() == HttpStatus.CREATED) {
try {
jsonObject = new JSONObject(responseEntity.getBody());
} catch (JSONException e) {
throw new RuntimeException("JSONException occurred");
}
}
} catch (final HttpClientErrorException httpClientErrorException) {
throw new ExternalCallBadRequestException();
} catch (HttpServerErrorException httpServerErrorException) {
throw new ExternalCallServerErrorException(httpServerErrorException);
} catch (Exception exception) {
throw new ExternalCallServerErrorException(exception);
}
ExternalCallBadRequestException and ExternalCallServerErrorException are the custom exceptions here.
Note: Remember HttpClientErrorException is thrown when a 4xx error is received. So if the request you send is wrong either setting header or sending wrong data, you could receive this exception.
If using maven, just add to your pom.xml:
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.5.0-b01</version>
</dependency>
Of course, you need to check the current version.
I think that the most semantic way is using readonly
attribute that checkbox inputs can have. No css, no images, etc; a built-in HTML property!
See Fiddle:
http://jsfiddle.net/chriscoyier/mGg85/2/
As described here in last trick: http://css-tricks.com/indeterminate-checkboxes/
I had this when build my application with "All cpu" target while it referenced a 3rd party x64-only (managed) dll.
WOW, I gotta say: keep it simple:
MessageBox.Show("Result: " + (DateTime.Now.AddDays(10) > DateTime.Now));
Result: True
and:
MessageBox.Show("Result: " + DateTime.Now.AddDays(10).Subtract(DateTime.Now));
Result: 10.00:00:00
The DateTime object has all the builtin logic to handle the Boolean result.
Below is an example of a method in a Java controller.
@RequestMapping(method = RequestMethod.POST)
@ResponseBody
public HttpStatus something(@RequestBody MyModel myModel)
{
return HttpStatus.OK;
}
By using @RequestBody annotation you will get your values mapped with the model you created in your system for handling any specific call. While by using @ResponseBody you can send anything back to the place from where the request was generated. Both things will be mapped easily without writing any custom parser etc.
Since pandas 1.0.0 df.sort_values
has a new parameter ignore_index
which does exactly what you need:
In [1]: df2 = df.sort_values(by=['x','y'],ignore_index=True)
In [2]: df2
Out[2]:
x y
0 0 0
1 0 1
2 0 2
3 1 0
4 1 1
5 1 2
6 2 0
7 2 1
8 2 2
// Parent layout
LinearLayout parentLayout = (LinearLayout)findViewById(R.id.layout);
// Layout inflater
LayoutInflater layoutInflater = getLayoutInflater();
View view;
for (int i = 1; i < 101; i++){
// Add the text layout to the parent layout
view = layoutInflater.inflate(R.layout.text_layout, parentLayout, false);
// In order to get the view we have to use the new view with text_layout in it
TextView textView = (TextView)view.findViewById(R.id.text);
textView.setText("Row " + i);
// Add the text view to the parent layout
parentLayout.addView(textView);
}
Won't you need the ensure the area where you display the Arabic is Right-to-Left orientated also?
e.g.
<p dir="rtl">
Oracle says (http://www.oracle.com/technology/products/database/utilities/htdocs/sql_loader_overview.html)
SQL*Loader is the primary method for quickly populating Oracle tables with data from external files
My experience is that their loader loads their tables faster than anything else.
Your DOS command 2> nul
Read page Using command redirection operators. Besides the "2>" construct mentioned by Tanuki Software, it lists some other useful combinations.
Thanks to everyone above, but this is now fixed. For the benefit of others the most significant error was in aligning the three namespaces as suggested by Ian.
For completeness, here is the corrected XML and XSD
Here is the XML, with the typos corrected (sorry for any confusion caused by tardiness)
<?xml version="1.0" encoding="UTF-8"?>
<Root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="urn:Test.Namespace"
xsi:schemaLocation="urn:Test.Namespace Test1.xsd">
<element1 id="001">
<element2 id="001.1">
<element3 id="001.1" />
</element2>
</element1>
</Root>
and, here is the Schema
<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="urn:Test.Namespace"
xmlns="urn:Test.Namespace"
elementFormDefault="qualified">
<xsd:element name="Root">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="element1" maxOccurs="unbounded" type="element1Type"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:complexType name="element1Type">
<xsd:sequence>
<xsd:element name="element2" maxOccurs="unbounded" type="element2Type"/>
</xsd:sequence>
<xsd:attribute name="id" type="xsd:string"/>
</xsd:complexType>
<xsd:complexType name="element2Type">
<xsd:sequence>
<xsd:element name="element3" type="element3Type"/>
</xsd:sequence>
<xsd:attribute name="id" type="xsd:string"/>
</xsd:complexType>
<xsd:complexType name="element3Type">
<xsd:attribute name="id" type="xsd:string"/>
</xsd:complexType>
</xsd:schema>
Thanks again to everyone, I hope this is of use to somebody else in the future.
I had a similar problem going through a tutorial.
# git mv README README.markdown
fatal: bad source, source=README, destination=README.markdown
I included the filetype in the source file:
# git mv README.rdoc README.markdown
and it worked perfectly. Don't forget to commit the changes with i.e.:
# git commit -a -m "Improved the README"
Sometimes it is simple little things like that, that piss us off. LOL
You can't do that in plain HTML, but you can do it with jQuery:
JavaScript Image Dropdown
Are you tired with your old fashion dropdown? Try this new one. Image combo box. You can add an icon with each option. It works with your existing "select" element or you can create by JSON object.
Or you could replace '\' with '/' in the path.
I believe the proper way of adding pthread
in CMake
is with the following
find_package (Threads REQUIRED)
target_link_libraries(helloworld
${CMAKE_THREAD_LIBS_INIT}
)
I think the best way is to use currentTarget property instead of target property.
The currentTarget read-only property of the Event interface identifies the current target for the event, as the event traverses the DOM. It always refers to the element to which the event handler has been attached, as opposed to Event.target, which identifies the element on which the event occurred.
For example:
<a href="#"><span class="icon"></span> blah blah</a>
Javascript:
a.addEventListener('click', e => {
e.currentTarget; // always returns "a" element
e.target; // may return "a" or "span"
})
Please note that MVC 3 onwards the persistence behavior of TempData has changed, now the value in TempData is persisted until it is read, and not just for the next request.
The value of TempData persists until it is read or until the session times out. Persisting TempData in this way enables scenarios such as redirection, because the values in TempData are available beyond a single request. https://msdn.microsoft.com/en-in/library/dd394711%28v=vs.100%29.aspx
You likely don't have a CA signed certificate installed in your SQL VM's trusted root store.
If you have Encrypt=True
in the connection string, either set that to off (not recommended), or add the following in the connection string:
TrustServerCertificate=True
SQL Server will create a self-signed certificate if you don't install one for it to use, but it won't be trusted by the caller since it's not CA-signed, unless you tell the connection string to trust any server cert by default.
Long term, I'd recommend leveraging Let's Encrypt to get a CA signed certificate from a known trusted CA for free, and install it on the VM. Don't forget to set it up to automatically refresh. You can read more on this topic in SQL Server books online under the topic of "Encryption Hierarchy", and "Using Encryption Without Validation".
For those using the Google API Client Library for PHP and seeking offline access and refresh tokens beware as of the time of this writing the docs are showing incorrect examples.
currently it's showing:
$client = new Google_Client();
$client->setAuthConfig('client_secret.json');
$client->addScope(Google_Service_Drive::DRIVE_METADATA_READONLY);
$client->setRedirectUri('http://' . $_SERVER['HTTP_HOST'] . '/oauth2callback.php');
// offline access will give you both an access and refresh token so that
// your app can refresh the access token without user interaction.
$client->setAccessType('offline');
// Using "consent" ensures that your application always receives a refresh token.
// If you are not using offline access, you can omit this.
$client->setApprovalPrompt("consent");
$client->setIncludeGrantedScopes(true); // incremental auth
source: https://developers.google.com/identity/protocols/OAuth2WebServer#offline
All of this works great - except ONE piece
$client->setApprovalPrompt("consent");
After a bit of reasoning I changed this line to the following and EVERYTHING WORKED
$client->setPrompt("consent");
It makes sense since using the HTTP requests it was changed from approval_prompt=force to prompt=consent. So changing the setter method from setApprovalPrompt to setPrompt follows natural convention - BUT IT'S NOT IN THE DOCS!!! That I found at least.
Edit - This answer is a solution, but a much simpler and proper approach would be setting the tabindex
attribute on the canvas element (as suggested by hobberwickey).
You can't focus a canvas element. A simple work around this, would be to make your "own" focus.
var lastDownTarget, canvas;
window.onload = function() {
canvas = document.getElementById('canvas');
document.addEventListener('mousedown', function(event) {
lastDownTarget = event.target;
alert('mousedown');
}, false);
document.addEventListener('keydown', function(event) {
if(lastDownTarget == canvas) {
alert('keydown');
}
}, false);
}
It's because, even in "raw" strings (=strings with an r
before the starting quote(s)), an unescaped escape character cannot be the last character in the string. This should work instead:
'\\ '[0]
You can create a smaller intermediate result like this:
>>> j = [4, 5, 6, 7, 1, 3, 7, 5]
>>> len([1 for i in j if i > 5])
3
One convenient trick to entering elapsed times into Excel is to have two zeros and a colon before the number of minutes, details follow. For copy and paste operations into Excel without have to worry about formatting at all one can use the format 00:XX:XX where XX are two digits totaling < 60. In that case, Excel will echo 0:XX:XX in the cell contents displayed and store the data as 12:XX:XX AM. If one pastes data in a 00:XXX:XX format into Excel, or 00:XX:XX where either XX > 59 this will be converted into a fraction of a day.
For example, 00:121:12 becomes 0.0841666666666667, which if multiplied by the number of seconds in a day, 86,400, becomes 7272 s. Next, 00:21:12 would by default show 0:21:12 stored as 12:21:12 AM. Finally, 00:21:60 becomes 0.0152777777777778, also a fraction of a day.
This suggestion is made merely to avoid having to worry about specific formatting in Excel, and letting the program worry about it. Note, for Excel data internally formatted as 12:XX:XX AM one can only use certain Excel commands, for example, one can take an average. However, subtraction will only work when the result is a positive number. Such that converting times into seconds, fractions of a day, or other real number is suggested for access to more complete arithmetic operation coverage.
For example, if one has a column of mixed time formats, or times that are negative and will not display, if one changes the number formatting to General, all the times will be converted to fractions of a day.
They are two different metrics to evaluate your model's performance usually being used in different phases.
Loss is often used in the training process to find the "best" parameter values for your model (e.g. weights in neural network). It is what you try to optimize in the training by updating weights.
Accuracy is more from an applied perspective. Once you find the optimized parameters above, you use this metrics to evaluate how accurate your model's prediction is compared to the true data.
Let us use a toy classification example. You want to predict gender from one's weight and height. You have 3 data, they are as follows:(0 stands for male, 1 stands for female)
y1 = 0, x1_w = 50kg, x2_h = 160cm;
y2 = 0, x2_w = 60kg, x2_h = 170cm;
y3 = 1, x3_w = 55kg, x3_h = 175cm;
You use a simple logistic regression model that is y = 1/(1+exp-(b1*x_w+b2*x_h))
How do you find b1 and b2? you define a loss first and use optimization method to minimize the loss in an iterative way by updating b1 and b2.
In our example, a typical loss for this binary classification problem can be: (a minus sign should be added in front of the summation sign)
We don't know what b1 and b2 should be. Let us make a random guess say b1 = 0.1 and b2 = -0.03. Then what is our loss now?
so the loss is
Then you learning algorithm (e.g. gradient descent) will find a way to update b1 and b2 to decrease the loss.
What if b1=0.1 and b2=-0.03 is the final b1 and b2 (output from gradient descent), what is the accuracy now?
Let's assume if y_hat >= 0.5, we decide our prediction is female(1). otherwise it would be 0. Therefore, our algorithm predict y1 = 1, y2 = 1 and y3 = 1. What is our accuracy? We make wrong prediction on y1 and y2 and make correct one on y3. So now our accuracy is 1/3 = 33.33%
PS: In Amir's answer, back-propagation is said to be an optimization method in NN. I think it would be treated as a way to find gradient for weights in NN. Common optimization method in NN are GradientDescent and Adam.
The problem might be the following: SVN ignores .a files because of its global config, which means someone didn't commit the libGoogleAnalytics.a to SVN, because it didn't show up in SVN. So now you try to check out the project from SVN which now misses the libGoogleAnalytics.a (since it was ignored and was not committed). Of course the build fails.
You might want to change the global ignore config from SVN to stop ignoring *.a files.
Or just add the one missing libGoogleAnalytics.a file manually to your SVN working copy instead of changing SVNs global ignore config.
Then re-add libGoogleAnalytics.a to your XCode project and commit it to SVN.
Step 1: You need to append one blank option
with a blank value in your select tag.
Step 2: Add data-placeholder
attribute in select tag with a placeholder value
HTML
<select class="select2" data-placeholder='--Select--'>
<option value=''>--Select--</option>
<option value='1'>Option 1</option>
<option value='2'>Option 2</option>
<option value='3'>Option 3</option>
</select>
Jquery
$('.select2').select2({
placeholder: $(this).data('placeholder')
});
OR
$('.select2').select2({
placeholder: 'Custom placeholder text'
});
use .html()
along with selector to get/set HTML:
$('#detailInfo').html('changed value');