In your Jenkins installation directory there is a jenkins.xml, where you can set various options. Add the parameter -Xmx with the size you want to the arguments-tag (or increase the size if its already there).
This is method used to get the Call log. Just put this method in you class and get the List of the Call Log.
private String getCallDetails() {
StringBuffer sb = new StringBuffer();
Cursor managedCursor = managedQuery(CallLog.Calls.CONTENT_URI, null,
null, null, null);
int number = managedCursor.getColumnIndex(CallLog.Calls.NUMBER);
int type = managedCursor.getColumnIndex(CallLog.Calls.TYPE);
int date = managedCursor.getColumnIndex(CallLog.Calls.DATE);
int duration = managedCursor.getColumnIndex(CallLog.Calls.DURATION);
sb.append("Call Details :");
while (managedCursor.moveToNext()) {
String phNumber = managedCursor.getString(number);
String callType = managedCursor.getString(type);
String callDate = managedCursor.getString(date);
Date callDayTime = new Date(Long.valueOf(callDate));
String callDuration = managedCursor.getString(duration);
String dir = null;
int dircode = Integer.parseInt(callType);
switch (dircode) {
case CallLog.Calls.OUTGOING_TYPE:
dir = "OUTGOING";
break;
case CallLog.Calls.INCOMING_TYPE:
dir = "INCOMING";
break;
case CallLog.Calls.MISSED_TYPE:
dir = "MISSED";
break;
}
sb.append("\nPhone Number:--- " + phNumber + " \nCall Type:--- "
+ dir + " \nCall Date:--- " + callDayTime
+ " \nCall duration in sec :--- " + callDuration);
sb.append("\n----------------------------------");
}
managedCursor.close();
return sb.toString();
}
the output looks
It looks like you are trying to start the Python interpreter by running the command python.
However the interpreter is already started. It is interpreting python as a name of a variable, and that name is not defined.
Try this instead and you should hopefully see that your Python installation is working as expected:
print("Hello world!")
I had this problem today, too.
It was caused by ActiveSync on Windows Mobile - the folder I was working in was synced so the AS process grabbed the DB file from time to time causing this error.
Below applies to all tags with the following two classes
.abc.xyz {
width: 200px !important;
}
applies to div tags with the following two classes
div.abc.xyz {
width: 200px !important;
}
If you wanted to modify this using jQuery
$(document).ready(function() {
$("div.abc.xyz").width("200px");
});
but during a soccer-match, or a concert what does it matter if you are a single minute behind the stream?
To some soccer fans, quite a bit. It has been remarked that delays of even a few seconds present in digital video streams due to encoding (or whatever) can be very annoying when, during high-profile events such as world cup matches, you can hear the cheers and groans from the guys next door (who are watching an undelyed analog program) before you get to see the game moves that caused them.
I think that to someone caring a lot about sports (and those are the biggest group of paying customers for digital TV, at least here in Germany), being a minute behind in a live video stream would be completely unacceptable (As in, they'd switch to your competitor where this doesn't happen).
This is an old post and the links are no longer valid but because it came up early in a search I was doing I thought I should comment to help others understand the problem better.
By using float you are asking the browser to arrange your controls automatically. It responds by wrapping when the controls don't fit the width for their specified float arrangement. float:left, float:right or clear:left,clear:right,clear:both.
So if you want to force a bunch of float:left items to float uniformly into one left column then you need to make the browser decide to wrap/unwrap them at the same width. Because you don't want to do any scripting you can wrap all of the controls you want to float together in a single div. You would want to add a new wrapping div with a class like:
.LeftImages{
float:left;
}
html
<div class="LeftImages">
<img...>
<img...>
</div>
This div will automatically adjust to the width of the largest image and all the images will be floated left with the div all the time (no wrapping).
If you still want them to wrap you can give the div a width like width:30% and each of the images the float:left; style. Rather than adjust to the largest image it will vary in size and allow the contained images to wrap.
I've mostly just seen the builtin ValueError used in this situation.
this is might be a possible solution
void 0 != document.getElementById("ad") && (document.getElementById("ad").onclick =function(){
var a = $("#client_id").val();
var b = $("#contact").val();
var c = $("#message").val();
var Qdata = { client_id: a, contact:b, message:c }
var respo='';
$("#message").html('');
return $.ajax({
url: applicationPath ,
type: "POST",
data: Qdata,
success: function(e) {
$("#mcg").html("msg send successfully");
}
})
});
In Python 2, raw_input() returns a string, and input() tries to run the input as a Python expression.
Since getting a string was almost always what you wanted, Python 3 does that with input(). As Sven says, if you ever want the old behaviour, eval(input()) works.
This kind of functionality is built in.
When using a decimal you can use a format string "C" or "c".
decimal dec = 123.00M;
string uk = dec.ToString("C", new CultureInfo("en-GB")); // uk holds "£123.00"
string us = dec.ToString("C", new CultureInfo("en-US")); // us holds "$123.00"
You can also use Edit Site List and make it be an exception so that you can run it from the specific website.
I was just dealing with this mess after wanting longclick to not end with a click event.
Here's what I did.
public boolean onLongClick(View arg0) {
Toast.makeText(getContext(), "long click", Toast.LENGTH_SHORT).show();
longClicked = true;
return false;
}
public void onClick(View arg0) {
if(!longClicked){
Toast.makeText(getContext(), "click", Toast.LENGTH_SHORT).show();
}
longClick = false; // sets the clickability enabled
}
boolean longClicked = false;
It's a bit of a hack but it works.
instead of ng-model you can use this code:
import { Component } from '@angular/core';
@Component({
selector: 'my-app',
template: `<input #box (keyup)="0">
<p>{{box.value}}</p>`,
})
export class AppComponent {}
inside your app.component.ts
While maintaining the proper .gitignore file is helpful, I found this alternate approach is way cleaner and easier to use.
my_project and inside that git clone my_real_project the actual project repo.my_project and mark my_project/my_real_project as the VCS root. my_project/.idea wouldn't pollute your git repo because it happily lives outside the git repo which is what you want. This way your .gitignore files stays clean as well. This approach works better due to the below reasons.
1 - .gitignore file stays clean and we don't have to insert lines related to JetBrains products, that file is better used for binaries and libraries and autogen contents.
2 - Intellij keeps updating their projects and the files inside .idea keep changing every significant release from JB. What this means is we have to keep updating our .gitignore accordingly which is not an ideal use of time.
3 - Intellij has the flawed pattern here, most editors Atom, VS Code, Eclipse... nobody stores their IDE contents right inside project root. JB shouldn't be an exception either. It's the onus of Jetbrains to keep those files tracked outside project root. They have to refrain from polluting VCS root. This approach does just that. The .idea folder is kept outside the PROJECT_ROOT
Hope this helps.
My issue was also caused by missing https binding in IIS: Selected default website > On the far right pane selected Bindings > add > https
Choose 'IIS Express Development Certificate' and set port to 443
Matvey is right, but you should quote $x and consider any kind of "spaces" (e.g. new line) with
[[ $list =~ (^|[[:space:]])"$x"($|[[:space:]]) ]] && echo 'yes' || echo 'no'
so, i.e.
# list_include_item "10 11 12" "2"
function list_include_item {
local list="$1"
local item="$2"
if [[ $list =~ (^|[[:space:]])"$item"($|[[:space:]]) ]] ; then
# yes, list include item
result=0
else
result=1
fi
return $result
}
end then
`list_include_item "10 11 12" "12"` && echo "yes" || echo "no"
or
if `list_include_item "10 11 12" "1"` ; then
echo "yes"
else
echo "no"
fi
Note that you must use "" in case of variables:
`list_include_item "$my_list" "$my_item"` && echo "yes" || echo "no"
I was facing the same issue; and the following worked well for me. Hope this helps someone landing here:
<div class="row">
<div class="col-md-6">
<div class="col-md-12">
Set room heater temperature
</div>
</div>
<div class="col-md-6">
<div class="col-md-12">
Set room heater temperature
</div>
</div>
</div>
This will automatically render some space between the 2 divs.
It's quite simple, first HTML must be added:
<div id="dialog"></div>
Then, it must be initialized:
<script type="text/javascript">
jQuery( document ).ready( function() {
jQuery( '#dialog' ).dialog( { 'autoOpen': false } );
});
</script>
After this you can show it by code:
jQuery( '#dialog' ).dialog( 'open' );
SELECT
t.A,
t.B,
t.C,
ROW_NUMBER() OVER (ORDER BY (SELECT 1)) AS number
FROM tableZ AS t
See working example at SQLFiddle
Of course, you may want to define the row-numbering order – if so, just swap OVER (ORDER BY (SELECT 1)) for, e.g., OVER (ORDER BY t.C), like in a normal ORDER BY clause.
Noted: Try to fully understanding about flex concept.
<View style={{
flex: 2,
justifyContent: 'center',
alignItems: 'center'
}}>
<View style ={{
flex: 1,
alignItems: 'center,
height: 50,
borderWidth: 1,
borderColor: '#000'
}}>
<Text>Welcome to React Nativ</Text>
</View>
<View style={{
flex: 1,
alignItems: 'center,
borderWidth: 1,
borderColor: 'red ',
height: 50
}}
>
<Text> line 1 </Text>
</View>
<View style={{
flex: 1,
alignItems: 'center,
height: 50,
borderWidth: 1,
borderColor: '#000'
}}>
<Text>
Press Cmd+R to reload,{'\n'}
Cmd+D or shake for dev menu
</Text>
</View>
</View>
I am supporting iOS 5, 6, & 7. My app is iPad only. I needed to use all of the following:
[[UIApplication sharedApplication] setStatusBarHidden:YES];
View Controller:
- (BOOL)prefersStatusBarHidden{ return YES; }
Info.plist
<key>UIStatusBarHidden</key>
<string>YES</string>
<key>UIStatusBarHidden~ipad</key>
<true/>
<key>UIViewControllerBasedStatusBarAppearance</key>
<string>NO</string>
body {
margin: 0;
padding: 0;
background: url('img/background.jpg') repeat;
}
body:before {
content: " ";
width: 100%;
height: 100%;
position: absolute;
z-index: -1;
top: 0;
left: 0;
background: -webkit-radial-gradient(top center, ellipse cover, rgba(255,255,255,0.2) 0%,rgba(0,0,0,0.5) 100%);
}
PLEASE NOTE: This only using webkit so it will only work in webkit browsers.
try :
-moz-linear-gradient = (Firefox)
-ms-linear-gradient = (IE)
-o-linear-gradient = (Opera)
-webkit-linear-gradient = (Chrome & safari)
From the SQL Server Management Studio you can right click on your database and select:
Tasks -> Generate Scripts
Then simply proceed through the wizard. Make sure to set 'Script Data' to TRUE when prompted to choose the script options.
Further reading:
If Number is Negative or Positive Using ES6’s Math.Sign_x000D_
_x000D_
const num = -8;_x000D_
// Old Way_x000D_
num === 0 ? num : (num > 0 ? 1 : -1); // -1_x000D_
_x000D_
// ES6 Way_x000D_
Math.sign(num); // -1This is no more .NET Core vs. Mono. It's unified.
Update as of November 2020 - .NET 5 released that unifies .NET Framework and .NET Core
.NET and Mono will be unified under .NET 6 that would be released in November 2021
net6.0-ios and net6.0-android.net6.0-ios14.Check below articles:
function arrayUnique($myArray)
{
$newArray = Array();
if (is_array($myArray))
{
foreach($myArray as $key=>$val)
{
if (is_array($val))
{
$val2 = arrayUnique($val);
}
else
{
$val2 = $val;
$newArray=array_unique($myArray);
$newArray=deleteEmpty($newArray);
break;
}
if (!empty($val2))
{
$newArray[$key] = $val2;
}
}
}
return ($newArray);
}
function deleteEmpty($myArray)
{
$retArray= Array();
foreach($myArray as $key=>$val)
{
if (($key<>"") && ($val<>""))
{
$retArray[$key] = $val;
}
}
return $retArray;
}
Today, in Office 365, Excel has so called 'array functions'.
The filter function does exactly what you want. No need to use CTRL+SHIFT+ENTER anymore, a simple enter will suffice.
In Office 365, your problem would be simply solved by using:
=VLOOKUP(A3, FILTER(A2:C6, B2:B6="B"), 3, FALSE)
I've solved my problems, so I post here the correct code in case someone needs similar stuff.
Open Port
int USB = open( "/dev/ttyUSB0", O_RDWR| O_NOCTTY );
Set parameters
struct termios tty;
struct termios tty_old;
memset (&tty, 0, sizeof tty);
/* Error Handling */
if ( tcgetattr ( USB, &tty ) != 0 ) {
std::cout << "Error " << errno << " from tcgetattr: " << strerror(errno) << std::endl;
}
/* Save old tty parameters */
tty_old = tty;
/* Set Baud Rate */
cfsetospeed (&tty, (speed_t)B9600);
cfsetispeed (&tty, (speed_t)B9600);
/* Setting other Port Stuff */
tty.c_cflag &= ~PARENB; // Make 8n1
tty.c_cflag &= ~CSTOPB;
tty.c_cflag &= ~CSIZE;
tty.c_cflag |= CS8;
tty.c_cflag &= ~CRTSCTS; // no flow control
tty.c_cc[VMIN] = 1; // read doesn't block
tty.c_cc[VTIME] = 5; // 0.5 seconds read timeout
tty.c_cflag |= CREAD | CLOCAL; // turn on READ & ignore ctrl lines
/* Make raw */
cfmakeraw(&tty);
/* Flush Port, then applies attributes */
tcflush( USB, TCIFLUSH );
if ( tcsetattr ( USB, TCSANOW, &tty ) != 0) {
std::cout << "Error " << errno << " from tcsetattr" << std::endl;
}
Write
unsigned char cmd[] = "INIT \r";
int n_written = 0,
spot = 0;
do {
n_written = write( USB, &cmd[spot], 1 );
spot += n_written;
} while (cmd[spot-1] != '\r' && n_written > 0);
It was definitely not necessary to write byte per byte, also int n_written = write( USB, cmd, sizeof(cmd) -1) worked fine.
At last, read:
int n = 0,
spot = 0;
char buf = '\0';
/* Whole response*/
char response[1024];
memset(response, '\0', sizeof response);
do {
n = read( USB, &buf, 1 );
sprintf( &response[spot], "%c", buf );
spot += n;
} while( buf != '\r' && n > 0);
if (n < 0) {
std::cout << "Error reading: " << strerror(errno) << std::endl;
}
else if (n == 0) {
std::cout << "Read nothing!" << std::endl;
}
else {
std::cout << "Response: " << response << std::endl;
}
This one worked for me. Thank you all!
I believe that there can still be and valid logic on views. But for this kind of things I agree with @BigMike, it is better placed on the model. Having said that the problem can be solved in three ways:
Your answer (assuming this works, I haven't tried this):
<div class="details @(@Model.Details.Count > 0 ? "show" : "hide")">
Second option:
@if (Model.Details.Count > 0) {
<div class="details show">
}
else {
<div class="details hide">
}
Third option:
<div class="@("details " + (Model.Details.Count>0 ? "show" : "hide"))">
I'm not convinced this was the issue but through cPanel I'd noticed the PHP version was on 5.6 and changing it to 7.3 seemed to fix it. This was for a WordPress site. I noticed I could access images and generic PHP files but loading WordPress itself caused the error.
If you are using ggplot2 to generate a figure, then a ggsave(file="name.eps") will also work.
Lightweight command line argument defaults
Although argparse is great and is the right answer for fully documented command line switches and advanced features, you can use function argument defaults to handles straightforward positional arguments very simply.
import sys
def get_args(name='default', first='a', second=2):
return first, int(second)
first, second = get_args(*sys.argv)
print first, second
The 'name' argument captures the script name and is not used. Test output looks like this:
> ./test.py
a 2
> ./test.py A
A 2
> ./test.py A 20
A 20
For simple scripts where I just want some default values, I find this quite sufficient. You might also want to include some type coercion in the return values or command line values will all be strings.
You can use display:inline-block instead of float and vertical-align:middle with this CSS:
.col-lg-4, .col-lg-8 {
float:none;
display:inline-block;
vertical-align:middle;
margin-right:-4px;
}
The demo http://bootply.com/94402
Dim x As Integer = 0
Dim y As Integer = 0
Dim k = 0
Dim l = 0
Dim bm As New Bitmap(p1.Image)
Dim om As New Bitmap(p1.Image.Width, p1.Image.Height)
Dim r, g, b As Byte
Do While x < bm.Width - 1
y = 0
l = 0
Do While y < bm.Height - 1
r = 255 - bm.GetPixel(x, y).R
g = 255 - bm.GetPixel(x, y).G
b = 255 - bm.GetPixel(x, y).B
om.SetPixel(k, l, Color.FromArgb(r, g, b))
y += 3
l += 1
Loop
x += 3
k += 1
Loop
p2.Image = om
The li tag has a property called list-style-position. This makes your bullets inside or outside the list. On default, it’s set to inside. That makes your text wrap around it. If you set it to outside, the text of your li tags will be aligned.
The downside of that is that your bullets won't be aligned with the text outside the ul. If you want to align it with the other text you can use a margin.
ul li {
/*
* We want the bullets outside of the list,
* so the text is aligned. Now the actual bullet
* is outside of the list’s container
*/
list-style-position: outside;
/*
* Because the bullet is outside of the list’s
* container, indent the list entirely
*/
margin-left: 1em;
}
Edit 15th of March, 2014 Seeing people are still coming in from Google, I felt like the original answer could use some improvement
em’sul elementhttps://en.wikipedia.org/wiki/Shunting-yard_algorithm
The shunting yard algorithm can also be applied to produce prefix notation (also known as polish notation). To do this one would simply start from the end of a string of tokens to be parsed and work backwards, reverse the output queue (therefore making the output queue an output stack), and flip the left and right parenthesis behavior (remembering that the now-left parenthesis behavior should pop until it finds a now-right parenthesis).
from collections import deque
def convertToPN(expression):
precedence = {}
precedence["*"] = precedence["/"] = 3
precedence["+"] = precedence["-"] = 2
precedence[")"] = 1
stack = []
result = deque([])
for token in expression[::-1]:
if token == ')':
stack.append(token)
elif token == '(':
while stack:
t = stack.pop()
if t == ")": break
result.appendleft(t)
elif token not in precedence:
result.appendleft(token)
else:
# XXX: associativity should be considered here
# https://en.wikipedia.org/wiki/Operator_associativity
while stack and precedence[stack[-1]] > precedence[token]:
result.appendleft(stack.pop())
stack.append(token)
while stack:
result.appendleft(stack.pop())
return list(result)
expression = "(a - b) / c * (d + e - f / g)".replace(" ", "")
convertToPN(expression)
step through:
step 1 : token ) ; stack:[ ) ]
result:[ ]
step 2 : token g ; stack:[ ) ]
result:[ g ]
step 3 : token / ; stack:[ ) / ]
result:[ g ]
step 4 : token f ; stack:[ ) / ]
result:[ f g ]
step 5 : token - ; stack:[ ) - ]
result:[ / f g ]
step 6 : token e ; stack:[ ) - ]
result:[ e / f g ]
step 7 : token + ; stack:[ ) - + ]
result:[ e / f g ]
step 8 : token d ; stack:[ ) - + ]
result:[ d e / f g ]
step 9 : token ( ; stack:[ ]
result:[ - + d e / f g ]
step 10 : token * ; stack:[ * ]
result:[ - + d e / f g ]
step 11 : token c ; stack:[ * ]
result:[ c - + d e / f g ]
step 12 : token / ; stack:[ * / ]
result:[ c - + d e / f g ]
step 13 : token ) ; stack:[ * / ) ]
result:[ c - + d e / f g ]
step 14 : token b ; stack:[ * / ) ]
result:[ b c - + d e / f g ]
step 15 : token - ; stack:[ * / ) - ]
result:[ b c - + d e / f g ]
step 16 : token a ; stack:[ * / ) - ]
result:[ a b c - + d e / f g ]
step 17 : token ( ; stack:[ * / ]
result:[ - a b c - + d e / f g ]
# the final while
step 18 : token ( ; stack:[ ]
result:[ * / - a b c - + d e / f g ]
One other thing that affected me: If you have multiple test devices, make sure you are making changes to the layout used by the device. In my case, I spent a while making changes to xmls in the "layout" directory until I discovered that my larger phone (which I switched to halfway through testing) was using xmls in the "layout-sw360dp" directory. Grrr!
I like akosicki's answer with the Stupid Scanner Trick. It's the simplest I see without external dependencies that works in Java 8 (and in fact all the way back to Java 5). Here's an even simpler answer if you can use Java 9 or higher (since InputStream.readAllBytes() was added at Java 9):
String text = new String(AppropriateClass.class.getResourceAsStream("foo.txt").readAllBytes());
Apparently in Android 2.2 there is a bug with SimpleDateFormat.
In order to use month names you have to define them yourself in your resources:
<string-array name="month_names">
<item>January</item>
<item>February</item>
<item>March</item>
<item>April</item>
<item>May</item>
<item>June</item>
<item>July</item>
<item>August</item>
<item>September</item>
<item>October</item>
<item>November</item>
<item>December</item>
</string-array>
And then use them in your code like this:
/**
* Get the month name of a Date. e.g. January for the Date 2011-01-01
*
* @param date
* @return e.g. "January"
*/
public static String getMonthName(Context context, Date date) {
/*
* Android 2.2 has a bug in SimpleDateFormat. Can't use "MMMM" for
* getting the Month name for the given Locale. Thus relying on own
* values from string resources
*/
String result = "";
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int month = cal.get(Calendar.MONTH);
try {
result = context.getResources().getStringArray(R.array.month_names)[month];
} catch (ArrayIndexOutOfBoundsException e) {
result = Integer.toString(month);
}
return result;
}
Just a heads up... with Python 2.7, and I believe ever since super() was introduced in version 2.2, you can only call super() if one of the parents inherit from a class that eventually inherits object (new-style classes).
Personally, as for python 2.7 code, I'm going to continue using BaseClassName.__init__(self, args) until I actually get the advantage of using super().
This is what I'm using:
var ua = navigator.userAgent;
var info = {
browser: /Edge\/\d+/.test(ua) ? 'ed' : /MSIE 9/.test(ua) ? 'ie9' : /MSIE 10/.test(ua) ? 'ie10' : /MSIE 11/.test(ua) ? 'ie11' : /MSIE\s\d/.test(ua) ? 'ie?' : /rv\:11/.test(ua) ? 'ie11' : /Firefox\W\d/.test(ua) ? 'ff' : /Chrom(e|ium)\W\d|CriOS\W\d/.test(ua) ? 'gc' : /\bSafari\W\d/.test(ua) ? 'sa' : /\bOpera\W\d/.test(ua) ? 'op' : /\bOPR\W\d/i.test(ua) ? 'op' : typeof MSPointerEvent !== 'undefined' ? 'ie?' : '',
os: /Windows NT 10/.test(ua) ? "win10" : /Windows NT 6\.0/.test(ua) ? "winvista" : /Windows NT 6\.1/.test(ua) ? "win7" : /Windows NT 6\.\d/.test(ua) ? "win8" : /Windows NT 5\.1/.test(ua) ? "winxp" : /Windows NT [1-5]\./.test(ua) ? "winnt" : /Mac/.test(ua) ? "mac" : /Linux/.test(ua) ? "linux" : /X11/.test(ua) ? "nix" : "",
touch: 'ontouchstart' in document.documentElement,
mobile: /IEMobile|Windows Phone|Lumia/i.test(ua) ? 'w' : /iPhone|iP[oa]d/.test(ua) ? 'i' : /Android/.test(ua) ? 'a' : /BlackBerry|PlayBook|BB10/.test(ua) ? 'b' : /Mobile Safari/.test(ua) ? 's' : /webOS|Mobile|Tablet|Opera Mini|\bCrMo\/|Opera Mobi/i.test(ua) ? 1 : 0,
tablet: /Tablet|iPad/i.test(ua),
};
info properties:
browser: gc for Google Chrome; ie9-ie11 for IE; ie? for old or unknown IE; ed for Edge; ff for Firefox; sa for Safari; op for Opera.os: mac win7 win8 win10 winnt winxp winvista linux nixmobile: a for Android; i for iOS (iPhone iPad); w for Windows Phone; b for Blackberry; s for undetected mobile running Safari; 1 for other undetected mobile; 0 for non-mobiletouch: true for touch enabled devices, including touch laptops/notebooks that has both mouse and touch together; false for no touch supporttablet: true or falseTo deal with situations where there are a possibility of multiple values (v in your example), I use PIVOT and LISTAGG:
SELECT * FROM
(
SELECT id, k, v
FROM _kv
)
PIVOT
(
LISTAGG(v ,',')
WITHIN GROUP (ORDER BY k)
FOR k IN ('name', 'age','gender','status')
)
ORDER BY id;
Since you want dynamic values, use dynamic SQL and pass in the values determined by running a select on the table data before calling the pivot statement.
The root of the problem is that Spring (via ResponseEntity, RestController, and/or ResponseBody) will use the contents of the string as the raw response value, rather than treating the string as JSON value to be encoded. This is true even when the controller method uses produces = MediaType.APPLICATION_JSON_VALUE, as in the question here.
It's essentially like the difference between the following:
// yields: This is a String
System.out.println("This is a String");
// yields: "This is a String"
System.out.println("\"This is a String\"");
The first output cannot be parsed as JSON, but the second output can.
Something like '"'+myString+'"' is probably not a good idea however, as that won't handle proper escaping of double-quotes within the string and will not produce valid JSON for any such string.
One way to handle this would be to embed your string inside an object or list, so that you're not passing a raw string to Spring. However, that changes the format of your output, and really there's no good reason not to be able to return a properly-encoded JSON string if that's what you want to do. If that's what you want, the best way to handle it is via a JSON formatter such as Json or Google Gson. Here's how it might look with Gson:
import com.google.gson.Gson;
@RestController
public class MyController
private static final Gson gson = new Gson();
@RequestMapping(value = "so", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
ResponseEntity<String> so() {
return ResponseEntity.ok(gson.toJson("This is a String"));
}
}
I had similar issues (I tried to create a nested RecyclerViews something like Google PlayStore design). The best way to deal with this is by subclassing the child RecyclerViews and overriding the 'onInterceptTouchEvent' and 'onTouchEvent' methods. This way you get complete control of how those events behave and eventually scrolling.
Dim inputString As String = "ra"
Enumerable.Range(0, arr.Length).Where(Function(x) arr(x).ToLower().Contains(inputString.ToLower()))
cls
$exactadminfile = "C:\temp\files\admin" #First folder to check the file
$userfile = "C:\temp\files\user" #Second folder to check the file
$filenames=Get-Content "C:\temp\files\files-to-watch.txt" #Reading the names of the files to test the existance in one of the above locations
foreach ($filename in $filenames) {
if (!(Test-Path $exactadminfile\$filename) -and !(Test-Path $userfile\$filename)) { #if the file is not there in either of the folder
Write-Warning "$filename absent from both locations"
} else {
Write-Host " $filename File is there in one or both Locations" #if file exists there at both locations or at least in one location
}
}
for me best solotion this is
Thread.CurrentThread.Abort();
and force close app.
By specifying the the my.list.of.strings=ABC,CDE,EFG in .properties file and using
@Value("${my.list.of.strings}")
private String[] myString;
You can get the arrays of strings. And using CollectionUtils.addAll(myList, myString), you can get the list of strings.
I guess you are using Rails 4. If so, the needed parameters must be marked as required.
You might want to do it like this:
class UsersController < ApplicationController
def create
@user = User.new(user_params)
# ...
end
private
def user_params
params.require(:user).permit(:username, :email, :password, :salt, :encrypted_password)
end
end
Check out this link it has a example code to encrypt/decrypt data using AES256CBC using EVP API.
https://github.com/saju/misc/blob/master/misc/openssl_aes.c
Also you can check the use of AES256 CBC in a detailed open source project developed by me at https://github.com/llubu/mpro
The code is detailed enough with comments and if you still need much explanation about the API itself i suggest check out this book Network Security with OpenSSL by Viega/Messier/Chandra (google it you will easily find a pdf of this..) read chapter 6 which is specific to symmetric ciphers using EVP API.. This helped me a lot actually understanding the reasons behind using various functions and structures of EVP.
and if you want to dive deep into the Openssl crypto library, i suggest download the code from the openssl website (the version installed on your machine) and then look in the implementation of EVP and aeh api implementation.
One more suggestion from the code you posted above i see you are using the api from aes.h instead use EVP. Check out the reason for doing this here OpenSSL using EVP vs. algorithm API for symmetric crypto nicely explained by Daniel in one of the question asked by me..
Newer versions: (from 8.4 - mentioned in release notes)
TABLE mytablename;
Longer but works on all versions:
SELECT * FROM mytablename;
You may wish to use \x first if it's a wide table, for readability.
For long data:
SELECT * FROM mytable LIMIT 10;
or similar.
For wide data (big rows), in the psql command line client, it's useful to use \x to show the rows in key/value form instead of tabulated, e.g.
\x
SELECT * FROM mytable LIMIT 10;
Note that in all cases the semicolon at the end is important.
If you don't want to edit each file
PYTHONPATH to your libor if you are willing to add a single line to each file, add a import statement at top e.g.
import import_my_lib
keep import_my_lib.py in bin and import_my_lib can correctly set the python path to whatever lib you want
Using the ampersand (&) will run the command in a child process (child to the current bash session). However, when you exit the session, all child processes will be killed.
using nohup + ampersand (&) will do the same thing, except that when the session ends, the parent of the child process will be changed to "1" which is the "init" process, thus preserving the child from being killed.
Just a simple solution is here...it worked for me:
If try-except-finally is nested inside a finally block, the result from "child" finally is preserved. I have not found an official explanation yet, but the following code snippet shows this behavior in Python 3.6.
def f2():
try:
a = 4
raise SyntaxError
except SyntaxError as se:
print('log SE')
raise se from None
finally:
try:
raise ValueError
except ValueError as ve:
a = 5
print('log VE')
raise ve from None
finally:
return 6
return a
In [1]: f2()
log SE
log VE
Out[2]: 6
$("html, body").scrollTop($(element).offset().top); // <-- Also integer can be used
As an alternative to Activator.CreateInstance, FastObjectFactory in the linked url preforms better than Activator (as of .NET 4.0 and significantly better than .NET 3.5. No tests/stats done with .NET 4.5). See StackOverflow post for stats, info and code:
How to pass ctor args in Activator.CreateInstance or use IL?
It really depends on the application. For a normal project, I would recommend using only Access, but sometimes, the needs are specific and an Excel spreadsheet might be more appropriate.
For instance, in a project I had to develop for a former employer, the need was to give access to different persons on forms(pre-filled with some data, different for each person) and have them complete them, then re-import the data.
Since the form was using heavy number crunching, it made more sense to build it in Excel.
The Excel workbooks for the different persons were built from a template using VBA, then saved in a proper location, with the access rights on the folder.
All workbooks were attached as External tables to the workbooks, using named ranges. I could then query the workbooks from the Access Application. All administrative stuff was made from the db, but the end users only had access to their respective workbook.
Developping an Excel/Access application this way was a pleasant experience and the UI was more user-friendly than it would have been using Access.
I have to say that in this case, it would have taken a lot more time doing it in Access than it took using Excel. Also, the Application Object Model seems better though in Excel than in Access.
If you plan to use Excel as a front-end, do not forget to lock all the cells, but the editable ones and don't be affraid to use masked rows and columnns (to construct output tables for the access database, to perform intermediate calculations, etc).
You should also turn off autocalculation while importing data.
There are two ways to write case statements, you seem to be using a combination of the two
case a.updatedDate
when 1760 then 'Entered on' + a.updatedDate
when 1710 then 'Viewed on' + a.updatedDate
else 'Last Updated on' + a.updateDate
end
or
case
when a.updatedDate = 1760 then 'Entered on' + a.updatedDate
when a.updatedDate = 1710 then 'Viewed on' + a.updatedDate
else 'Last Updated on' + a.updateDate
end
are equivalent. They may not work because you may need to convert date types to varchars to append them to other varchars.
In case you want to utilize .then() which has a subtle difference in comparison with .done() :
return $.post(url, payload)
.then(
function (result, textStatus, jqXHR) {
return result;
},
function (jqXHR, textStatus, errorThrown) {
return console.error(errorThrown);
});
(This has been deprecated now you can use ImageBackground)
This is how I've done it. The main deal was getting rid of the static fixed sizes.
class ReactStrap extends React.Component {
render() {
return (
<Image source={require('image!background')} style={styles.container}>
... Your Content ...
</Image>
);
}
}
var styles = StyleSheet.create({
container: {
flex: 1,
// remove width and height to override fixed static size
width: null,
height: null,
}
};
It seems that you are trying to call a method with a Map parameter. So, to call with an empty person name the right approach should be
HashMap<String, String> options = new HashMap<String, String>();
options.put("name", null);
Person person = sample.searchPerson(options);
Or you can do it like this
HashMap<String, String> options = new HashMap<String, String>();
Person person = sample.searchPerson(options);
Using
Person person = sample.searchPerson(null);
Could get you a null pointer exception. It all depends on the implementation of searchPerson() method.
The default in the php.ini for the session.gc_maxlifetime directive (the "gc" is for garbage collection) is 1440 seconds or 24 minutes. See the Session Runtime Configuation page in the manual:
http://www.php.net/manual/en/session.configuration.php
You can change this constant in the php.ini or .httpd.conf files if you have access to them, or in the local .htaccess file on your web site. To set the timeout to one hour using the .htaccess method, add this line to the .htaccess file in the root directory of the site:
php_value session.gc_maxlifetime "3600"
Be careful if you are on a shared host or if you host more than one site where you have not changed the default. The default session location is the /tmp directory, and the garbage collection routine will run every 24 minutes for these other sites (and wipe out your sessions in the process, regardless of how long they should be kept). See the note on the manual page or this site for a better explanation.
The answer to this is to move your sessions to another directory using session.save_path. This also helps prevent bad guys from hijacking your visitors' sessions from the default /tmp directory.
I spent almost two days on finding the solution for this problem and I found this at last.
This uses javascript and jquery.
(GitHub) pointer_events_polyfill
This could use a javascript plug-in to be downloaded/copied.
Just copy/download the codes from that site and save it as pointer_events_polyfill.js. Include that javascript to your site.
<script src="JS/pointer_events_polyfill.js></script>
Add this jquery scripts to your site
$(document).ready(function(){
PointerEventsPolyfill.initialize({});
});
And don't forget to include your jquery plug-in.
It works! I can click elements under the transparent element. I'm using IE 10. I hope this can also work in IE 9 and below.
EDIT: Using this solution does not work when you click the textboxes below the transparent element. To solve this problem, I use focus when the user clicks on the textbox.
Javascript:
document.getElementById("theTextbox").focus();
JQuery:
$("#theTextbox").focus();
This lets you type the text into the textbox.
Of course...
select case substr(status,1,1) -- you're only interested in the first character.
when 'a' then 'Active'
when 'i' then 'Inactive'
when 't' then 'Terminated'
end as statustext
from stage.tst
However, there's a few worrying things about this schema. Firstly if you have a column that means something, appending a number onto the end it not necessarily the best way to go. Also, depending on the number of status' you have you might want to consider turning this column into a foreign key to a separate table.
Based on your comment you definitely want to turn this into a foreign key. For instance
create table statuses ( -- Not a good table name :-)
status varchar2(10)
, description varchar2(10)
, constraint pk_statuses primary key (status)
)
create table tst (
id number
, status varchar2(10)
, constraint pk_tst primary key (id)
, constraint fk_tst foreign key (status) references statuses (status)
)
Your query then becomes
select a.status, b.description
from tst a
left outer join statuses b
on a.status = b.status
Here's a SQL Fiddle to demonstrate.
As of Java 7, the NIO Api provides a better and more generic way of accessing the contents of Zip or Jar files. Actually, it is now a unified API which allows you to treat Zip files exactly like normal files.
In order to extract all of the files contained inside of a zip file in this API, you'd do this:
In Java 8:
private void extractAll(URI fromZip, Path toDirectory) throws IOException{
FileSystems.newFileSystem(fromZip, Collections.emptyMap())
.getRootDirectories()
.forEach(root -> {
// in a full implementation, you'd have to
// handle directories
Files.walk(root).forEach(path -> Files.copy(path, toDirectory));
});
}
In java 7:
private void extractAll(URI fromZip, Path toDirectory) throws IOException{
FileSystem zipFs = FileSystems.newFileSystem(fromZip, Collections.emptyMap());
for(Path root : zipFs.getRootDirectories()) {
Files.walkFileTree(root, new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)
throws IOException {
// You can do anything you want with the path here
Files.copy(file, toDirectory);
return FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)
throws IOException {
// In a full implementation, you'd need to create each
// sub-directory of the destination directory before
// copying files into it
return super.preVisitDirectory(dir, attrs);
}
});
}
}
As of September 2016 (according to the GitHub repository documentation of the extension) you can just execute a command from within Visual Studio Code that will let you select the interpreter from an automatically generated list of known interpreters (including the one in your project's virtual environment).
How can I use this feature?
- Select the command
Python: Select Workspace Interpreter(*) from the command palette (F1).
- Upon selecting the above command a list of discovered interpreters will be displayed in a
quick picklist.
- Selecting an interpreter from this list will update the settings.json file automatically.
(*) This command has been updated to Python: Select Interpreter in the latest release of Visual Studio Code (thanks @nngeek).
Also, notice that your selected interpreter will be shown at the left side of the statusbar, e.g., Python 3.6 64-bit. This is a button you can click to trigger the Select Interpreter feature.
By default, tnsnames.ora is located in the $ORACLE_HOME/network/admin directory on UNIX operating systems and in the ORACLE_HOME\network\admin directory on Windows operating systems. tnsnames.ora can also be stored the following locations:
The directory specified by the TNS_ADMIN environment variable (or registry value)
On UNIX operating systems, the global configuration directory. For example, on the Solaris Operating System, this directory is /var/opt/oracle
If you have multiple ORACLE_HOMES, be aware of which one you are using, as the location of the tnsnames.ora file can vary from one ORACLE_HOME to the next.
For the person who mentioned the TWO_TASK environment variable, that is used to set a default database service name to connect to (which could be a database on another server). The service name you set TWO_TASK to is then looked up in the tnsnames.ora file when you connect.
Just had this problem (again!) after getting a new Lion box.
Best solution I've found (still not 100% optimal, but working):
make sure you have 64-bit python. How to check if a library is 32bit/64bit built on Mac OS X?
install easy_install if you don't have it. http://packages.python.org/distribute/easy_install.html
install GCC if you don't have it.
you can get it by downloading XCode/Dev Tools from Apple - this is a big download -
... but instead I recommend this github which has what you need (and does not have XCode): https://github.com/kennethreitz/osx-gcc-installer
I downloaded their prebuilt PKG for lion, https://github.com/downloads/kennethreitz/osx-gcc-installer/GCC-10.7-v2.pkg
make sure you have downloaded a 64-BIT version of MYSQL Community. (The DMG install is an easy route) http://dev.mysql.com/downloads/mysql/
Set paths as follows:
export PATH=$PATH:/usr/local/mysql-XXXX
export DYLD_LIBRARY_PATH = /usr/local/mysql/lib/
export ARCHFLAGS='-arch x86_64'
NOTE THAT:
1 in mysql-XXXX above, XXX is the specific version you downloaded. (Probably /usr/local/mysql/ would also work since this is most likely an alias to the same, but I won't pretend to know your setup)
2 I have seen it suggested that ARCHFLAGS be set to '-arch i386 -arch x86_64' but specifying only x86_64 seemed to work better for me. (I can think of some reasons for this but they are not strictly relevant).
Install the beast!
easy_install MySQL-python
LAST STEP:
Permanently add the DYLD_LIBRARY_PATH!
You can add it to your bash_profile or similar. This was the missing step for me, without which my system continued to insist on various errors finding _mysql.so and so on.
export DYLD_LIBRARY_PATH = /usr/local/mysql/lib/
@richard-boardman, just noticed your soft link solution, which may in effect be doing the same thing my PATH solution does...folks, whatever works best for you.
Best reference: http://activeintelligence.org/blog/archive/mysql-python-aka-mysqldb-on-osx-lion/
In Node.js, __dirname is always the directory in which the currently executing script resides (see this). So if you typed __dirname into /d1/d2/myscript.js, the value would be /d1/d2.
By contrast, . gives you the directory from which you ran the node command in your terminal window (i.e. your working directory) when you use libraries like path and fs. Technically, it starts out as your working directory but can be changed using process.chdir().
The exception is when you use . with require(). The path inside require is always relative to the file containing the call to require.
Let's say your directory structure is
/dir1
/dir2
pathtest.js
and pathtest.js contains
var path = require("path");
console.log(". = %s", path.resolve("."));
console.log("__dirname = %s", path.resolve(__dirname));
and you do
cd /dir1/dir2
node pathtest.js
you get
. = /dir1/dir2
__dirname = /dir1/dir2
Your working directory is /dir1/dir2 so that's what . resolves to. Since pathtest.js is located in /dir1/dir2 that's what __dirname resolves to as well.
However, if you run the script from /dir1
cd /dir1
node dir2/pathtest.js
you get
. = /dir1
__dirname = /dir1/dir2
In that case, your working directory was /dir1 so that's what . resolved to, but __dirname still resolves to /dir1/dir2.
. inside require...If inside dir2/pathtest.js you have a require call into include a file inside dir1 you would always do
require('../thefile')
because the path inside require is always relative to the file in which you are calling it. It has nothing to do with your working directory.
You can use Array.push() for appending elements to an array.
For deleting, it is best to use this.$delete(array, index) for reactive objects.
Vue.delete( target, key ): Delete a property on an object. If the object is reactive, ensure the deletion triggers view updates. This is primarily used to get around the limitation that Vue cannot detect property deletions, but you should rarely need to use it.
rsync is actually quite tricky. have to do multiple tests to make it work.
Let's say you want to copy /var/www/html to /var/www/dev but need to exclude /var/www/html/site/video/ directory maybe due to its size. The command would be:
rsync -av --exclude 'sites/video' /var/www/html/ /var/www/dev
Some caveat:
/ in the source is needed, otherwise it will also copy the source directory rather than its content and becomes /var/www/dev/html/xxxx, which maybe is not what you want. The the --exclude path is relative to the source directly. Even if you put full absolute path, it will not work.
-v is for verbose, -a is for archive mode which means you want recursion and want to preserve almost everything.
public static void main(String args[]) throws ParseException {
String[] days = { "Sunday", "Monday", "Tuesday", "Wednesday",
"Thursday", "Friday", "Saturday" };
SimpleDateFormat format1 = new SimpleDateFormat("dd/MM/yyyy");
Date dt1 = format1.parse("20/10/2013");
Calendar c = Calendar.getInstance();
c.setTime(dt1);
int dayOfWeek = c.get(Calendar.DAY_OF_WEEK);
long diff = Calendar.getInstance().getTime().getTime() ;
System.out.println(dayOfWeek);
switch (dayOfWeek) {
case 6:
System.out.println(days[dayOfWeek - 1]);
break;
case 5:
System.out.println(days[dayOfWeek - 1]);
break;
case 4:
System.out.println(days[dayOfWeek - 1]);
break;
case 3:
System.out.println(days[dayOfWeek - 1]);
break;
case 2:
System.out.println(days[dayOfWeek - 1]);
break;
case 1:
System.out.println(days[dayOfWeek - 1]);
diff = diff -(dt1.getTime()- 3 );
long valuebefore = dt1.getTime();
long valueafetr = dt1.getTime()-2;
System.out.println("DATE IS befor subtraction :"+valuebefore);
System.out.println("DATE IS after subtraction :"+valueafetr);
long x= dt1.getTime()-(2 * 24 * 3600 * 1000);
System.out.println("Deducted date to find firday is - 2 days form Sunday :"+new Date((dt1.getTime()-(2*24*3600*1000))));
System.out.println("DIffrence from now on is :"+diff);
if(diff > 0) {
diff = diff / (1000 * 60 * 60 * 24);
System.out.println("Diff"+diff);
System.out.println("Date is Expired!"+(dt1.getTime() -(long)2));
}
break;
}
}
You need to properly decode the source text. Most likely the source text is in UTF-8 format, not ASCII.
Because you do not provide any context or code for your question it is not possible to give a direct answer.
I suggest you study how unicode and character encoding is done in Python:
System.String is a reference type so you don't need to do anything like
Nullable<string>
It already has a null value (the null reference):
string x = null; // No problems here
Use filter, or if the number of dictionaries in exampleSet is too high, use ifilter of the itertools module. It would return an iterator, instead of filling up your system's memory with the entire list at once:
from itertools import ifilter
for elem in ifilter(lambda x: x['type'] in keyValList, exampleSet):
print elem
You should look at the shelve and pickle modules. If you need to store a lot of data it may be better to use a database
I got this error because such DLL (and many others) were missing in bin folder when I pubished the web application. It seemed like a bug in Visual Studio publish function. Cleaning, recompiling and publishing it again, made such DLLs to be published correctly.
Neither.
Django is a framework, not a language. Python is the language in which Django is written.
Django is a collection of Python libs allowing you to quickly and efficiently create a quality Web application, and is suitable for both frontend and backend.
However, Django is pretty famous for its "Django admin", an auto generated backend that allows you to manage your website in a blink for a lot of simple use cases without having to code much.
More precisely, for the front end, Django helps you with data selection, formatting, and display. It features URL management, a templating language, authentication mechanisms, cache hooks, and various navigation tools such as paginators.
For the backend, Django comes with an ORM that lets you manipulate your data source with ease, forms (an HTML independent implementation) to process user input and validate data and signals, and an implementation of the observer pattern. Plus a tons of use-case specific nifty little tools.
For the rest of the backend work Django doesn't help with, you just use regular Python. Business logic is a pretty broad term.
You probably want to know as well that Django comes with the concept of apps, a self contained pluggable Django library that solves a problem. The Django community is huge, and so there are numerous apps that do specific business logic that vanilla Django doesn't.
Let’s assume we have the following two tables in our database, that form a one-to-many table relationship.
The student table is the parent, and the student_grade is the child table since it has a student_id Foreign Key column referencing the id Primary Key column in the student table.
The student table contains the following two records:
| id | first_name | last_name | admission_score |
|----|------------|-----------|-----------------|
| 1 | Alice | Smith | 8.95 |
| 2 | Bob | Johnson | 8.75 |
And, the student_grade table stores the grades the students received:
| id | class_name | grade | student_id |
|----|------------|-------|------------|
| 1 | Math | 10 | 1 |
| 2 | Math | 9.5 | 1 |
| 3 | Math | 9.75 | 1 |
| 4 | Science | 9.5 | 1 |
| 5 | Science | 9 | 1 |
| 6 | Science | 9.25 | 1 |
| 7 | Math | 8.5 | 2 |
| 8 | Math | 9.5 | 2 |
| 9 | Math | 9 | 2 |
| 10 | Science | 10 | 2 |
| 11 | Science | 9.4 | 2 |
Let’s say we want to get all students that have received a 10 grade in Math class.
If we are only interested in the student identifier, then we can run a query like this one:
SELECT
student_grade.student_id
FROM
student_grade
WHERE
student_grade.grade = 10 AND
student_grade.class_name = 'Math'
ORDER BY
student_grade.student_id
But, the application is interested in displaying the full name of a student, not just the identifier, so we need info from the student table as well.
In order to filter the student records that have a 10 grade in Math, we can use the EXISTS SQL operator, like this:
SELECT
id, first_name, last_name
FROM
student
WHERE EXISTS (
SELECT 1
FROM
student_grade
WHERE
student_grade.student_id = student.id AND
student_grade.grade = 10 AND
student_grade.class_name = 'Math'
)
ORDER BY id
When running the query above, we can see that only the Alice row is selected:
| id | first_name | last_name |
|----|------------|-----------|
| 1 | Alice | Smith |
The outer query selects the student row columns we are interested in returning to the client. However, the WHERE clause is using the EXISTS operator with an associated inner subquery.
The EXISTS operator returns true if the subquery returns at least one record and false if no row is selected. The database engine does not have to run the subquery entirely. If a single record is matched, the EXISTS operator returns true, and the associated other query row is selected.
The inner subquery is correlated because the student_id column of the student_grade table is matched against the id column of the outer student table.
Let’s consider we want to select all students that have no grade lower than 9. For this, we can use NOT EXISTS, which negates the logic of the EXISTS operator.
Therefore, the NOT EXISTS operator returns true if the underlying subquery returns no record. However, if a single record is matched by the inner subquery, the NOT EXISTS operator will return false, and the subquery execution can be stopped.
To match all student records that have no associated student_grade with a value lower than 9, we can run the following SQL query:
SELECT
id, first_name, last_name
FROM
student
WHERE NOT EXISTS (
SELECT 1
FROM
student_grade
WHERE
student_grade.student_id = student.id AND
student_grade.grade < 9
)
ORDER BY id
When running the query above, we can see that only the Alice record is matched:
| id | first_name | last_name |
|----|------------|-----------|
| 1 | Alice | Smith |
So, the advantage of using the SQL EXISTS and NOT EXISTS operators is that the inner subquery execution can be stopped as long as a matching record is found.
To have a constant date format irrespective of the computer settings, you must use 3 different input elements to capture day, month, and year respectively. However, you need to validate the user input to ensure that you have a valid date as shown bellow
<input id="txtDay" type="text" placeholder="DD" />
<input id="txtMonth" type="text" placeholder="MM" />
<input id="txtYear" type="text" placeholder="YYYY" />
<button id="but" onclick="validateDate()">Validate</button>
function validateDate() {
var date = new Date(document.getElementById("txtYear").value, document.getElementById("txtMonth").value, document.getElementById("txtDay").value);
if (date == "Invalid Date") {
alert("jnvalid date");
}
}
A variable prefixed with @ is an instance variable, while one prefixed with @@ is a class variable. Check out the following example; its output is in the comments at the end of the puts lines:
class Test
@@shared = 1
def value
@@shared
end
def value=(value)
@@shared = value
end
end
class AnotherTest < Test; end
t = Test.new
puts "t.value is #{t.value}" # 1
t.value = 2
puts "t.value is #{t.value}" # 2
x = Test.new
puts "x.value is #{x.value}" # 2
a = AnotherTest.new
puts "a.value is #{a.value}" # 2
a.value = 3
puts "a.value is #{a.value}" # 3
puts "t.value is #{t.value}" # 3
puts "x.value is #{x.value}" # 3
You can see that @@shared is shared between the classes; setting the value in an instance of one changes the value for all other instances of that class and even child classes, where a variable named @shared, with one @, would not be.
[Update]
As Phrogz mentions in the comments, it's a common idiom in Ruby to track class-level data with an instance variable on the class itself. This can be a tricky subject to wrap your mind around, and there is plenty of additional reading on the subject, but think about it as modifying the Class class, but only the instance of the Class class you're working with. An example:
class Polygon
class << self
attr_accessor :sides
end
end
class Triangle < Polygon
@sides = 3
end
class Rectangle < Polygon
@sides = 4
end
class Square < Rectangle
end
class Hexagon < Polygon
@sides = 6
end
puts "Triangle.sides: #{Triangle.sides.inspect}" # 3
puts "Rectangle.sides: #{Rectangle.sides.inspect}" # 4
puts "Square.sides: #{Square.sides.inspect}" # nil
puts "Hexagon.sides: #{Hexagon.sides.inspect}" # 6
I included the Square example (which outputs nil) to demonstrate that this may not behave 100% as you expect; the article I linked above has plenty of additional information on the subject.
Also keep in mind that, as with most data, you should be extremely careful with class variables in a multithreaded environment, as per dmarkow's comment.
I ran into this error after my client PC crashed, the jest --watch command I was running on the server persisted, and I tried to run jest --watch again.
The addition to /etc/sysctl.conf described in the answers above worked around this issue, but it was also important to find my old process via ps aux | grep node and kill it.
The onclick property is all lower-case, and accepts a function, not a string.
document.getElementById("test").onclick = foo2;
See also addEventListener.
The DPI of the screen of the Nexus 10 is ±300, which is in the unofficial xhdpi range of 280-400.
Usually, devices use resources designed for their density. But there are exceptions, and exceptions might be added in the future.
The Nexus 10 uses xxhdpi resources when it comes to launcher icons.
The standard quantised DPI for xxhdpi is 480 (which means screens with a DPI somewhere in the range of 400-560 are probably xxhdpi).
The solution that worked for me is using forward slash instead of backslash when 'calling' out from a local directory.
instead of backslash:
cursor: url("C:\Users\Ken\projects\JavascriptGames\images\bird.png"), auto;I changed it to forwardslash:
cursor: url("C:/Users/Ken/projects/JavascriptGames/images/bird.png"), auto;This behavior regarding backslashes and forward slashes could probably be explained in this StackOverflow answer: Strange backslash and behavior in CSS
Just to point out that there is an approach using functions from the tidyverse, which I find more readable than gsub:
a %>% stringr::str_remove(pattern = ".*_")
As the error message states, the method used to get the F score is from the "Classification" part of sklearn - thus the talking about "labels".
Do you have a regression problem? Sklearn provides a "F score" method for regression under the "feature selection" group: http://scikit-learn.org/stable/modules/generated/sklearn.feature_selection.f_regression.html
In case you do have a classification problem, @Shovalt's answer seems correct to me.
Just going to add a simple example to what everyone has explained,
json.load()
json.load can deserialize a file itself i.e. it accepts a file object, for example,
# open a json file for reading and print content using json.load
with open("/xyz/json_data.json", "r") as content:
print(json.load(content))
will output,
{u'event': {u'id': u'5206c7e2-da67-42da-9341-6ea403c632c7', u'name': u'Sufiyan Ghori'}}
If I use json.loads to open a file instead,
# you cannot use json.loads on file object
with open("json_data.json", "r") as content:
print(json.loads(content))
I would get this error:
TypeError: expected string or buffer
json.loads()
json.loads() deserialize string.
So in order to use json.loads I will have to pass the content of the file using read() function, for example,
using content.read() with json.loads() return content of the file,
with open("json_data.json", "r") as content:
print(json.loads(content.read()))
Output,
{u'event': {u'id': u'5206c7e2-da67-42da-9341-6ea403c632c7', u'name': u'Sufiyan Ghori'}}
That's because type of content.read() is string, i.e. <type 'str'>
If I use json.load() with content.read(), I will get error,
with open("json_data.json", "r") as content:
print(json.load(content.read()))
Gives,
AttributeError: 'str' object has no attribute 'read'
So, now you know json.load deserialze file and json.loads deserialize a string.
Another example,
sys.stdin return file object, so if i do print(json.load(sys.stdin)), I will get actual json data,
cat json_data.json | ./test.py
{u'event': {u'id': u'5206c7e2-da67-42da-9341-6ea403c632c7', u'name': u'Sufiyan Ghori'}}
If I want to use json.loads(), I would do print(json.loads(sys.stdin.read())) instead.
From the documentation, you do it like:
<div class="row">
<div class="col-md-6">left</div>
<div class="col-md-push-6">content needs to be right aligned</div>
</div>
This should work now ... edited to add decimal places if the number is a decimal.
<script>
function makedollars(mynumber)
{
mynumber = mynumber.toString();
var numberend="";
if(mynumber.split('.').length>1){
var mynumbersplit = mynumber.split('.');
mynumber = mynumbersplit[0];
numberend= mynumbersplit[1];
}
var mn = mynumber.length;
if (mn <= 3) { return mynumber + numberend; }
var grps = [];
while (mn > 3)
{
grps.push(mynumber.substring(mn,mn - 3));
mn = mn - 3;
}
grps.push(mynumber.substring(mn,mn - 3));
grps.reverse();
grps.join(",");
if(numberend!=""){ grps = grps +"."+numberend;}
return grps;
}
</script>
if (version_compare(phpversion(), '5.4.0', '<')) {
if(session_id() == '') {
session_start();
}
}
else
{
if (session_status() == PHP_SESSION_NONE) {
session_start();
}
}
You could try adding a bool so the algorithm would know when the button was activated. When it's clicked, the bool checks true, the new form shows and the last gets closed.
It's important to know that forms consume some ram (at least a little bit), so it's a good idea to close those you're not gonna use, instead of just hiding it. Makes the difference in big projects.
Bear in mind that I speak ASFAC++B. :) I've put the most important differentiating factor first.
Garbage Collection
Garbage Collection (GC) is the single most important factor in differentiating between these languages.
While C and C++ can be used with GC, it is a bolted-on afterthought and cannot be made to work as well (the best known is here) - it has to be "conservative" which means that it cannot collect all unused memory.
C# is designed from the ground up to work on a GC platform, with standard libraries also designed that way. It makes an absolutely fundamental difference to developer productivity that has to be experienced to be believed.
There is a belief widespread among C/C++ users that GC equates with "bad performance". But this is out-of-date folklore (even the Boehm collector on C/C++ performs much better than most people expect it to). The typical fear is of "long pauses" where the program stops so the GC can do some work. But in reality these long pauses happen with non-GC programs, because they run on top of a virtual memory system, which occasionally interrupts to move data between physical memory and disk.
There is also widespread belief that GC can be replaced with shared_ptr, but it can't; the irony is that in a multi-threaded program, shared_ptr is slower than a GC-based system.
There are environments that are so frugal that GC isn't practical - but these are increasingly rare. Cell phones typically have GC. The CLR's GC that C# typically runs on appears to be state-of-the-art.
Since adopting C# about 18 months ago I've gone through several phases of pure performance tuning with a profiler, and the GC is so efficient that it is practically invisible during the operation of the program.
GC is not a panacea, it doesn't solve all programming problems, it only really cleans up memory allocation, if you're allocating very large memory blocks then you will still need to take some care, and it is still possible to have what amounts to a memory leak in a sufficiently complex program - and yet, the effect of GC on productivity makes it a pretty close approximation to a panacea!
Undefined Behaviour
C++ is founded on the notion of undefined behaviour. That is, the language specification defines the outcome of certain narrowly defined usages of language features, and describes all other usages as causing undefined behaviour, meaning in principle that the operation could have any outcome at all (in practice this means hard-to-diagnose bugs involving apparently non-deterministic corruption of data).
Almost everything about C++ touches on undefined behaviour. Even very nice forthcoming features like lambda expressions can easily be used as convenient way to corrupt the stack (capture a local by reference, allow the lambda instance to outlive the local).
C# is founded on the principle that all possible operations should have defined behaviour. The worst that can happen is an exception is thrown. This completely changes the experience of software construction.
(There's unsafe mode, which has pointers and therefore undefined behaviour, but that is strongly discouraged for general use - think of it as analogous to embedded assembly language.)
Complexity
In terms of complexity, C++ has to be singled out, especially if we consider the very-soon-to-be standardized new version. C++ does absolutely everything it can to make itself effective, short of assuming GC, and as a result it has an awesome learning curve. The language designers excuse much of this by saying "Those features are only for library authors, not ordinary users" - but to be truly effective in any language, you need to build your code as reusable libraries. So you can't escape.
On the positive side, C++ is so complex, it's like a playground for nerds! I can assure you that you would have a lot of fun learning how it all fits together. But I can't seriously recommend it as a basis for productive new work (oh, the wasted years...) on mainstream platforms.
C keeps the language simple (simple in the sense of "the compiler is easy to write"), but this makes the coding techniques more arcane.
Note that not all new language features equate with added complexity. Some language features are described as "syntactic sugar", because they are shorthand that the compiler expands for you. This is a good way to think of a great deal of the enhancements to C# over recent years. The language standard even specifies some features by giving the translation to longhand, e.g. using statement expands into try/finally.
At one point, it was possible to think of C++ templates in the same way. But they've since become so powerful that they are now form the basis of a whole separate dimension of the language, with its own enthusiastic user communities and idioms.
Libraries
The strangest thing about C and C++ is that they don't have a standard interchangeable form of pre-compiled library. Integrating someone else's code into your project is always a little fiddly, with obscure decisions to be made about how you'll be linking to it.
Also, the standard library is extremely basic - C++ has a complete set of data structures and a way of representing strings (std::string), but that's still minimal. Is there a standard way of finding a list of files in a directory? Amazingly, no! Is there standard library support for parsing or generating XML? No. What about accessing databases? Be serious! Writing a web site back-end? Are you crazy? etc.
So you have to go hunting further afield. For XML, try Xerces. But does it use std::string to represent strings? Of course not!
And do all these third-party libraries have their own bizarre customs for naming classes and functions? You betcha!
The situation in C# couldn't be more different; the fundamentals were in place from the start, so everything inter-operates beautifully (and because the fundamentals are supplied by the CLR, there is cross-language support).
It's not all perfect; generics should have been in place from the start but wasn't, which does leave a visible scar on some older libraries; but it is usually trivial to fix this externally. Also a number of popular libraries are ported from Java, which isn't as good a fit as it first appears.
Closures (Anonymous Methods with Local Variable Capture)
Java and C are practically the last remaining mainstream languages to lack closures, and libraries can be designed and used much more neatly with them than without (this is one reason why ported Java libraries sometimes seem clunky to a C# user).
The amusing thing about C++ is that its standard library was designed as if closures were available in the language (container types, <algorithm>, <functional>). Then ten years went by, and now they're finally being added! They will have a huge impact (although, as noted above, they leak underfined behaviour).
C# and JavaScript are the most widely used languages in which closures are "idiomatically established". (The major difference between those languages being that C# is statically typed while JavaScript is dynamically typed).
Platform Support
I've put this last only because it doesn't appear to differentiate these languages as much as you might think. All these languages can run on multiple OSes and machine architectures. C is the most widely-supported, then C++, and finally C# (although C# can be used on most major platforms thanks to an open source implementation called Mono).
My experience of porting C++ programs between Windows and various Unix flavours was unpleasant. I've never tried porting anything very complex in C# to Mono, so I can't comment on that.
You would typically first read from the input stream and then close it. You can wrap the FileInputStream in another InputStream (or Reader). It will be automatically closed when you close the wrapping stream/reader.
If this is a method returning an InputStream to the caller, then it is the caller's responsibility to close the stream when finished with it. If you close it in your method, the caller will not be able to use it.
To answer some of your comments...
To send the contents InputStream to a remote consumer, you would write the content of the InputStream to an OutputStream, and then close both streams.
The remote consumer does not know anything about the stream objects you have created. He just receives the content, in an InputStream which he will create, read from and close.
Have you tried rake reklamer:iqmedier ?
My custom rake tasks are in the lib directory, not in lib/tasks. Not sure if that matters.
Seems pretty straightforward, according to the docs on the page you linked (emphasis mine).
requests.get(url, params=None, headers=None, cookies=None, auth=None, timeout=None)
Sends a GET request. Returns
Responseobject.Parameters:
- url – URL for the new
Requestobject.- params – (optional) Dictionary of GET Parameters to send with the
Request.- headers – (optional) Dictionary of HTTP Headers to send with the
Request.- cookies – (optional) CookieJar object to send with the
Request.- auth – (optional) AuthObject to enable Basic HTTP Auth.
- timeout – (optional) Float describing the timeout of the request.
try this:
$(document).ready(function() {
$(document).find('input[type=number]').attr('type', 'tel');
});
refer: https://answers.laserfiche.com/questions/88002/Use-number-field-input-type-with-Field-Mask
df[df.columns[i]]
where i is the position/number of the column(starting from 0).
So, i = 0 is for the first column.
You can also get the last column using i = -1
In my case, I tried xcode-select --install but it says that it's not available from the store. Then, inspired by Rimian, I checked my gcc : gcc -v and then I got a message saying I did not aggreed.
From that point I just followed the agreement process from gcc -v, after I agreed it works fine for me.
The best approch which worked for me is
webView.setWebViewClient(new WebViewClient() {
@Override public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
mProgressBar.setVisibility(ProgressBar.VISIBLE);
webView.setVisibility(View.INVISIBLE);
}
@Override public void onPageCommitVisible(WebView view, String url) {
super.onPageCommitVisible(view, url);
mProgressBar.setVisibility(ProgressBar.GONE);
webView.setVisibility(View.VISIBLE);
isWebViewLoadingFirstPage=false;
}
}
there are many causes such as
To examine the problem in detail, you can use Wireshark.
or you can just re-request or re-connect again.
I don't feel that anyone addressed the [ ] part of your question. When you read each line into your variable, because there were multiple lines before you replaced the \n with '' you ended up creating a list. If you have a variable of x and print it out just by
x
or print(x)
or str(x)
You will see the entire list with the brackets. If you call each element of the (array of sorts)
x[0] then it omits the brackets. If you use the str() function you will see just the data and not the '' either. str(x[0])
Those are generic type constraints. In your case there are two of them:
where T : class
Means that the type T must be a reference type (not a value type).
where T : new()
Means that the type T must have a parameter-less constructor. Having this constraint will allow you to do something like T field = new T(); in your code which you wouldn't be able to do otherwise.
You then combine the two using a comma to get:
where T : class, new()
Nothing compares to extjs in terms of community size and presence on StackOverflow. Despite previous controversy, Ext JS now has a GPLv3 open source license. Its learning curve is long, but it can be quite rewarding once learned. Ext JS lacks a Material Design theme, and the team has repeatedly refused to release the source code on GitHub. For mobile, one must use the separate Sencha Touch library.
Have in mind also that,
large JavaScript libraries, such as YUI, have been receiving less attention from the community. Many developers today look at large JavaScript libraries as walled gardens they don’t want to be locked into.
-- Announcement of YUI development being ceased
That said, below are a number of Ext JS alternatives currently available.
Blueprint is a React-based UI toolkit developed by big data analytics company Palantir in TypeScript, and "optimized for building complex data-dense interfaces for desktop applications". Actively developed on GitHub as of May 2019, with comprehensive documentation. Components range from simple (chips, toast, icons) to complex (tree, data table, tag input with autocomplete, date range picker. No accordion or resizer.
Blueprint targets modern browsers (Chrome, Firefox, Safari, IE 11, and Microsoft Edge) and is licensed under a modified Apache license.
Sandbox / demo • GitHub • Docs
Webix - an advanced, easy to learn, mobile-friendly, responsive and rich free&open source JavaScript UI components library. Webix spun off from DHTMLX Touch (a project with 8 years of development behind it - see below) and went on to become a standalone UI components framework. The GPL3 edition allows commercial use and lets non-GPL applications using Webix keep their license, e.g. MIT, via a license exemption for FLOSS. Webix has 55 UI widgets, including trees, grids, treegrids and charts. Funding comes from a commercial edition with some advanced widgets (Pivot, Scheduler, Kanban, org chart etc.). Webix has an extensive list of free and commercial widgets, and integrates with most popular frameworks (React, Vue, Meteor, etc) and UI components.
Skins look modern, and include a Material Design theme. The Touch theme also looks quite Material Design-ish. See also the Skin Builder.
Minimal GitHub presence, but includes the library code, and the documentation (which still needs major improvements). Webix suffers from a having a small team and a lack of marketing. However, they have been responsive to user feedback, both on GitHub and on their forum.
The library was lean (128Kb gzip+minified for all 55 widgets as of ~2015), faster than ExtJS, dojo and others, and the design is pleasant-looking. The current version of Webix (v6, as of Nov 2018) got heavier (400 - 676kB minified but NOT gzipped).
The demos on Webix.com look and function great. The developer, XB Software, uses Webix in solutions they build for paying customers, so there's likely a good, funded future ahead of it.
Webix aims for backwards compatibility down to IE8, and as a result carries some technical debt.
Wikipedia • GitHub • Playground/sandbox • Admin dashboard demo • Demos • Widget samples
react-md - MIT-licensed Material Design UI components library for React. Responsive, accessible. Implements components from simple (buttons, cards) to complex (sortable tables, autocomplete, tags input, calendars). One lead author, ~1900 GitHub stars.
kendo - jQuery-based UI toolkit with 40+ basic open-source widgets, plus commercial professional widgets (grids, trees, charts etc.). Responsive&mobile support. Works with Bootstrap and AngularJS. Modern, with Material Design themes. The documentation is available on GitHub, which has enabled numerous contributions from users (4500+ commits, 500+ PRs as of Jan 2015).
Well-supported commercially, claiming millions of developers, and part of a large family of developer tools. Telerik has received many accolades, is a multi-national company (Bulgaria, US), was acquired by Progress Software, and is a thought leader.
A Kendo UI Professional developer license costs $700 and posting access to most forums is conditioned upon having a license or being in the trial period.
[Wikipedia] • GitHub/Telerik • Demos • Playground • Tools
OpenUI5 - jQuery-based UI framework with 180 widgets, Apache 2.0-licensed and fully-open sourced and funded by German software giant SAP SE.
The community is much larger than that of Webix, SAP is hiring developers to grow OpenUI5, and they presented OpenUI5 at OSCON 2014.
The desktop themes are rather lackluster, but the Fiori design for web and mobile looks clean and neat.
Wikipedia • GitHub • Mobile-first controls demos • Desktop controls demos • SO
DHTMLX - JavaScript library for building rich Web and Mobile apps. Looks most like ExtJS - check the demos. Has been developed since 2005 but still looks modern. All components except TreeGrid are available under GPLv2 but advanced features for many components are only available in the commercial PRO edition - see for example the tree. Claims to be used by many Fortune 500 companies.
Minimal presence on GitHub (the main library code is missing) and StackOverflow but active forum. The documentation is not available on GitHub, which makes it difficult to improve by the community.
Polymer, a Web Components polyfill, plus Polymer Paper, Google's implementation of the Material design. Aimed at web and mobile apps. Doesn't have advanced widgets like trees or even grids but the controls it provides are mobile-first and responsive. Used by many big players, e.g. IBM or USA Today.
Ant Design claims it is "a design language for background applications", influenced by "nature" and helping designers "create low-entropy atmosphere for developer team". That's probably a poor translation from Chinese for "UI components for enterprise web applications". It's a React UI library written in TypeScript, with many components, from simple (buttons, cards) to advanced (autocomplete, calendar, tag input, table).
The project was born in China, is popular with Chinese companies, and parts of the documentation are available only in Chinese. Quite popular on GitHub, yet it makes the mistake of splitting the community into Chinese and English chat rooms. The design looks Material-ish, but fonts are small and the information looks lost in a see of whitespace.
PrimeUI - collection of 45+ rich widgets based on jQuery UI. Apache 2.0 license. Small GitHub community. 35 premium themes available.
qooxdoo - "a universal JavaScript framework with a coherent set of individual components", developed and funded by German hosting provider 1&1 (see the contributors, one of the world's largest hosting companies. GPL/EPL (a business-friendly license).
Mobile themes look modern but desktop themes look old (gradients).
Wikipedia • GitHub • Web/Mobile/Desktop demos • Widgets Demo browser • Widget browser • SO • Playground • Community
jQuery UI - easy to pick up; looks a bit dated; lacks advanced widgets. Of course, you can combine it with independent widgets for particular needs, e.g. trees or other UI components, but the same can be said for any other framework.
angular + Angular UI. While Angular is backed by Google, it's being radically revamped in the upcoming 2.0 version, and "users will need to get to grips with a new kind of architecture. It's also been confirmed that there will be no migration path from Angular 1.X to 2.0". Moreover, the consensus seems to be that Angular 2 won't really be ready for use until a year or two from now. Angular UI has relatively few widgets (no trees, for example).
DojoToolkit and their powerful Dijit set of widgets. Completely open-sourced and actively developed on GitHub, but development is now (Nov 2018) focused on the new dojo.io framework, which has very few basic widgets. BSD/AFL license. Development started in 2004 and the Dojo Foundation is being sponsored by IBM, Google, and others - see Wikipedia. 7500 questions here on SO.
Themes look desktop-oriented and dated - see the theme tester in dijit. The official theme previewer is broken and only shows "Claro". A Bootstrap theme exists, which looks a lot like Bootstrap, but doesn't use Bootstrap classes. In Jan 2015, I started a thread on building a Material Design theme for Dojo, which got quite popular within the first hours. However, there are questions regarding building that theme for the current Dojo 1.10 vs. the next Dojo 2.0. The response to that thread shows an active and wide community, covering many time zones.
Unfortunately, Dojo has fallen out of popularity and fewer companies appear to use it, despite having (had?) a strong foothold in the enterprise world. In 2009-2012, its learning curve was steep and the documentation needed improvements; while the documentation has substantially improved, it's unclear how easy it is to pick up Dojo nowadays.
With a Material Design theme, Dojo (2.0?) might be the killer UI components framework.
Enyo - front-end library aimed at mobile and TV apps (e.g. large touch-friendly controls). Developed by LG Electronix and Apache-licensed on GitHub.
The radical Cappuccino - Objective-J (a superset of JavaScript) instead of HTML+CSS+DOM
Mochaui, MooTools UI Library User Interface Library. <300 GitHub stars.
CrossUI - cross-browser JS framework to develop and package the exactly same code and UI into Web Apps, Native Desktop Apps (Windows, OS X, Linux) and Mobile Apps (iOS, Android, Windows Phone, BlackBerry). Open sourced LGPL3. Featured RAD tool (form builder etc.). The UI looks desktop-, not web-oriented. Actively developed, small community. No presence on GitHub.
ZinoUI - simple widgets. The DataTable, for instance, doesn't even support sorting.
Wijmo - good-looking commercial widgets, with old (jQuery UI) widgets open-sourced on GitHub (their development stopped in 2013). Developed by ComponentOne, a division of GrapeCity. See Wijmo Complete vs. Open.
CxJS - commercial JS framework based on React, Babel and webpack offering form elements, form validation, advanced grid control, navigational elements, tooltips, overlays, charts, routing, layout support, themes, culture dependent formatting and more.
Widgets - Demo Apps - Examples - GitHub
SproutCore - developed by Apple for web applications with native performance, handling large data sets on the client. Powers iCloud.com. Not intended for widgets.
Wakanda: aimed at business/enterprise web apps - see What is Wakanda?. Architecture:
Wakanda Application Framework (datasource layer + browser-based interface widgets) that helps with browser and device compatibility across desktop and mobile
Wakanda is highly integrated, includes a ton of features out of the box, but has a very small GitHub community and SO presence.
Servoy - "a cross platform frontend development and deployment environment for SQL databases". Boasts a "full WYSIWIG (What You See Is What You Get) UI designer for HTML5 with built-in data-binding to back-end services", responsive design, support for HTML6 Web Components, Websockets and mobile platforms. Written in Java and generates JavaScript code using various JavaBeans.
SmartClient/SmartGWT - mobile and cross-browser HTML5 UI components combined with a Java server. Aimed at building powerful business apps - see demos.
Vaadin - full-stack Java/GWT + JavaScript/HTML3 web app framework
Backbase - portal software
Shiny - front-end library on top R, with visualization, layout and control widgets
ZKOSS: Java+jQuery+Bootstrap framework for building enterprise web and mobile apps.
These libraries don't implement complex widgets such as tables with sorting/filtering, autocompletes, or trees.
Foundation for Apps - responsive front-end framework on top of AngularJS; more of a grid/layout/navigation library
UI Kit - similar to Bootstrap, with fewer widgets, but with official off-canvas.
Using the canvas elements allows for complete control over the UI, and great cross-browser compatibility, but comes at the cost of missing native browser functionality, e.g. page search via Ctrl/Cmd+F.
Setting a fixed number of decimal places globally is often a bad idea since it is unlikely that it will be an appropriate number of decimal places for all of your various data that you will display regardless of magnitude. Instead, try this which will give you scientific notation only for large and very small values (and adds a thousands separator unless you omit the ","):
pd.set_option('display.float_format', lambda x: '%,g' % x)
Or to almost completely suppress scientific notation without losing precision, try this:
pd.set_option('display.float_format', str)
Why not just use a FlowDocumentScrollViewer ?
The ".schema" commando will list available tables and their rows, by showing you the statement used to create said tables:
sqlite> create table_a (id int, a int, b int); sqlite> .schema table_a CREATE TABLE table_a (id int, a int, b int);
INSERTED and DELETED are virtual tables. They need to be used in a FROM clause.
CREATE TRIGGER sampleTrigger
ON database1.dbo.table1
FOR DELETE
AS
IF EXISTS (SELECT foo
FROM database2.dbo.table2
WHERE id IN (SELECT deleted.id FROM deleted)
AND bar = 4)
make sure your doSomething function is not static.
To trim a list in place without creating copies of it, use del:
>>> t = [1, 2, 3, 4, 5]
>>> # delete elements starting from index 4 to the end
>>> del t[4:]
>>> t
[1, 2, 3, 4]
>>> # delete elements starting from index 5 to the end
>>> # but the list has only 4 elements -- no error
>>> del t[5:]
>>> t
[1, 2, 3, 4]
>>>
In case someone else ends up here struggling to customize admin form Many2Many saving behaviour, you can't call self.instance.my_m2m.add(obj) in your ModelForm.save override, as ModelForm.save later populates your m2m from self.cleaned_data['my_m2m'] which overwrites your changes. Instead call:
my_m2ms = list(self.cleaned_data['my_m2ms'])
my_m2ms.extend(my_custom_new_m2ms)
self.cleaned_data['my_m2ms'] = my_m2ms
(It is fine to convert the incoming QuerySet to a list - the ManyToManyField does that anyway.)
If you want vertical spacing between elements, use a margin.
Don't add extra elements if you don't need to.
{{ path(app.request.attributes.get('_route'),
app.request.attributes.get('_route_params')) }}
If you want to read it into a view variable:
{% set currentPath = path(app.request.attributes.get('_route'),
app.request.attributes.get('_route_params')) %}
The app global view variable contains all sorts of useful shortcuts, such as app.session and app.security.token.user, that reference the services you might use in a controller.
Hope this will work:
// create activity indicator
UIActivityIndicatorView *activityIndicator = [[UIActivityIndicatorView alloc]
initWithFrame:CGRectMake(0.0f, 0.0f, 20.0f, 20.0f)];
[activityIndicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleWhite];
...
[self.view addSubview:activityIndicator];
// release it
[activityIndicator release];
This helped me delete data based on different attributes. This is dangerous so make sure you back up database or the table before doing it:
mysqldump -h hotsname -u username -p password database_name > backup_folder/backup_filename.txt
Now you can perform the delete operation:
delete from table_name where column_name < DATE_SUB(NOW() , INTERVAL 1 DAY)
This will remove all the data from before one day. For deleting data from before 6 months:
delete from table_name where column_name < DATE_SUB(NOW() , INTERVAL 6 MONTH)
Very simple, you create an array containing zeros using the reference shape:
result = np.zeros(b.shape)
# actually you can also use result = np.zeros_like(b)
# but that also copies the dtype not only the shape
and then insert the array where you need it:
result[:a.shape[0],:a.shape[1]] = a
and voila you have padded it:
print(result)
array([[ 1., 1., 1., 1., 1., 0.],
[ 1., 1., 1., 1., 1., 0.],
[ 1., 1., 1., 1., 1., 0.],
[ 0., 0., 0., 0., 0., 0.]])
You can also make it a bit more general if you define where your upper left element should be inserted
result = np.zeros_like(b)
x_offset = 1 # 0 would be what you wanted
y_offset = 1 # 0 in your case
result[x_offset:a.shape[0]+x_offset,y_offset:a.shape[1]+y_offset] = a
result
array([[ 0., 0., 0., 0., 0., 0.],
[ 0., 1., 1., 1., 1., 1.],
[ 0., 1., 1., 1., 1., 1.],
[ 0., 1., 1., 1., 1., 1.]])
but then be careful that you don't have offsets bigger than allowed. For x_offset = 2 for example this will fail.
If you have an arbitary number of dimensions you can define a list of slices to insert the original array. I've found it interesting to play around a bit and created a padding function that can pad (with offset) an arbitary shaped array as long as the array and reference have the same number of dimensions and the offsets are not too big.
def pad(array, reference, offsets):
"""
array: Array to be padded
reference: Reference array with the desired shape
offsets: list of offsets (number of elements must be equal to the dimension of the array)
"""
# Create an array of zeros with the reference shape
result = np.zeros(reference.shape)
# Create a list of slices from offset to offset + shape in each dimension
insertHere = [slice(offset[dim], offset[dim] + array.shape[dim]) for dim in range(a.ndim)]
# Insert the array in the result at the specified offsets
result[insertHere] = a
return result
And some test cases:
import numpy as np
# 1 Dimension
a = np.ones(2)
b = np.ones(5)
offset = [3]
pad(a, b, offset)
# 3 Dimensions
a = np.ones((3,3,3))
b = np.ones((5,4,3))
offset = [1,0,0]
pad(a, b, offset)
In case anyone else stumbles on this, I was using File.ReadAllText to get CSV data and then I modified it and wrote it back with File.WriteAllText. The \r\n CRLFs were fine but the \t tabs were ignored when Excel opened it. (All solutions in this thread so far use a comma delimiter but that doesn't matter.) Notepad showed the same format in the resulting file as in the source. A Diff even showed the files as identical. But I got a clue when I opened the file in Visual Studio with a binary editor. The source file was Unicode but the target was ASCII. To fix, I modified both ReadAllText and WriteAllText with third argument set as System.Text.Encoding.Unicode, and from there Excel was able to open the updated file.
function drawDataURIOnCanvas(strDataURI, canvas) {
"use strict";
var img = new window.Image();
img.addEventListener("load", function () {
canvas.getContext("2d").drawImage(img, 0, 0);
});
img.setAttribute("src", strDataURI);
}
I know this post is a few years old, but what I do is add this line to the top of your class and you will still be able to user Server.MapPath
Dim Server = HttpContext.Current.Server
or u can make a function
Public Function MapPath(sPath as String)
return HttpContext.Current.Server.MapPath(sPath)
End Function
I am all about making things easier. I have also added it to my Utilities class just in case i run into this again.
Although John Leidegren keeps shooting down the idea, Brian is correct. I've just got it working in Visual Studio.
To be clear a WPF application does not create a Console window by default.
You have to create a WPF Application and then change the OutputType to "Console Application". When you run the project you will see a console window with your WPF window in front of it.
It doesn't look very pretty, but I found it helpful as I wanted my app to be run from the command line with feedback in there, and then for certain command options I would display the WPF window.
for those stumbling upon this question: the python jsonlines library (much younger than this question) elegantly handles files with one json document per line. see https://jsonlines.readthedocs.io/
anon and chepner's answers are on the right track. Python 3.x has a print function and this is what you will need if you want to embed print within a function (and, a fortiori, lambdas).
However, you can get the print function very easily in python 2.x by importing from the standard library's future module. Check it out:
>>>from __future__ import print_function
>>>
>>>iterable = ["a","b","c"]
>>>map(print, iterable)
a
b
c
[None, None, None]
>>>
I guess that looks kind of weird, so feel free to assign the return to _ if you would like to suppress [None, None, None]'s output (you are interested in the side-effects only, I assume):
>>>_ = map(print, iterable)
a
b
c
>>>
To me it happened in DogController that autowired DogService that autowired DogRepository. Dog class used to have field name but I changed it to coolName, but didn't change methods in DogRepository: Dog findDogByName(String name). I change that method to Dog findDogByCoolName(String name) and now it works.
One possible way to do this in just one line by using a map, simple I am checking whether a > b if it is true I am assigning c to a otherwise b
c := map[bool]int{true: a, false: b}[a > b]
However, this looks amazing but in some cases it might NOT be the perfect solution because of evaluation order. For example, if I am checking whether an object is not nil get some property out of it, look at the following code snippet which will panic in case of myObj equals nil
type MyStruct struct {
field1 string
field2 string
}
var myObj *MyStruct
myObj = nil
myField := map[bool]string{true: myObj.field1, false: "empty!"}[myObj != nil}
Because map will be created and built first before evaluating the condition so in case of myObj = nil this will simply panic.
Not to forget to mention that you can still do the conditions in just one simple line, check the following:
var c int
...
if a > b { c = a } else { c = b}
create an xml gradient.xml file under drawable folder
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle" >
<corners android:radius="50dip" />
<stroke android:width="1dip" android:color="#667162" />
<gradient android:angle="-90" android:startColor="#ffffff" android:endColor="#ffffff" />
</shape>
</item>
</selector>
then add this to your TextView
android:background="@drawable/gradient"
I was successful using tidy command line utility. On linux I installed it quickly with apt-get install tidy. Then the command:
tidy -q -asxml --numeric-entities yes source.html >file.xml
gave an xml file, which I was able to process with xslt processor. However I needed to set up xhtml1 dtds correctly.
This is their homepage: html-tidy.org (and the legacy one: HTML Tidy)
If all else fails, try resetting the password to the same thing. I encountered this error and was unable to work around it, but simply resetting the password to the same value resolved the problem.
select u_name as user_name from users where u_name = "john";
Think of it like this, your where clause evaluates first, to determine which rows (or joined rows) need to be returned. Once the where clause is executed, the select clause runs for it.
To put it a better way, imagine this:
select distinct(u_name) as user_name from users where u_name = "john";
You can't reference the first half without the second. Where always gets evaluated first, then the select clause.
The current (as of version 0.20) method for changing column names after a groupby operation is to chain the rename method. See this deprecation note in the documentation for more detail.
This is the first result in google and although the top answer works it does not really answer the question. There is a better answer here and a long discussion on github about the full functionality of passing dictionaries to the agg method.
These answers unfortunately do not exist in the documentation but the general format for grouping, aggregating and then renaming columns uses a dictionary of dictionaries. The keys to the outer dictionary are column names that are to be aggregated. The inner dictionaries have keys that the new column names with values as the aggregating function.
Before we get there, let's create a four column DataFrame.
df = pd.DataFrame({'A' : list('wwwwxxxx'),
'B':list('yyzzyyzz'),
'C':np.random.rand(8),
'D':np.random.rand(8)})
A B C D
0 w y 0.643784 0.828486
1 w y 0.308682 0.994078
2 w z 0.518000 0.725663
3 w z 0.486656 0.259547
4 x y 0.089913 0.238452
5 x y 0.688177 0.753107
6 x z 0.955035 0.462677
7 x z 0.892066 0.368850
Let's say we want to group by columns A, B and aggregate column C with mean and median and aggregate column D with max. The following code would do this.
df.groupby(['A', 'B']).agg({'C':['mean', 'median'], 'D':'max'})
D C
max mean median
A B
w y 0.994078 0.476233 0.476233
z 0.725663 0.502328 0.502328
x y 0.753107 0.389045 0.389045
z 0.462677 0.923551 0.923551
This returns a DataFrame with a hierarchical index. The original question asked about renaming the columns in the same step. This is possible using a dictionary of dictionaries:
df.groupby(['A', 'B']).agg({'C':{'C_mean': 'mean', 'C_median': 'median'},
'D':{'D_max': 'max'}})
D C
D_max C_mean C_median
A B
w y 0.994078 0.476233 0.476233
z 0.725663 0.502328 0.502328
x y 0.753107 0.389045 0.389045
z 0.462677 0.923551 0.923551
This renames the columns all in one go but still leaves the hierarchical index which the top level can be dropped with df.columns = df.columns.droplevel(0).
This is a pretty old thread, but there is a work-around solution now, which may not have been in BeautifulSoup at the time.
Here is an example of what I did. I use the "requests" module to read an RSS feed and get its text content in a variable called "rss_text". With that, I run it thru BeautifulSoup, search for the xpath /rss/channel/title, and retrieve its contents. It's not exactly XPath in all its glory (wildcards, multiple paths, etc.), but if you just have a basic path you want to locate, this works.
from bs4 import BeautifulSoup
rss_obj = BeautifulSoup(rss_text, 'xml')
cls.title = rss_obj.rss.channel.title.get_text()
There are no PowerShell-native commands for Base64 conversion - yet (as of PowerShell [Core] 7.1), but adding dedicated cmdlets has been suggested.
For now, direct use of .NET is needed.
Important:
Base64 encoding is an encoding of binary data using bytes whose values are constrained to a well-defined 64-character subrange of the ASCII character set representing printable characters, devised at a time when sending arbitrary bytes was problematic, especially with the high bit set (byte values > 0x7f).
Therefore, you must always specify explicitly what character encoding the Base64 bytes do / should represent.
Ergo:
on converting TO Base64, you must first obtain a byte representation of the string you're trying to encode using the character encoding the consumer of the Base64 string expects.
on converting FROM Base64, you must interpret the resultant array of bytes as a string using the same encoding that was used to create the Base64 representation.
Examples:
Note:
The following examples convert to and from UTF-8 encoded strings:
To convert to and from UTF-16LE ("Unicode") instead, substitute [Text.Encoding]::Unicode for [Text.Encoding]::UTF8
Convert TO Base64:
PS> [Convert]::ToBase64String([Text.Encoding]::UTF8.GetBytes('Motörhead'))
TW90w7ZyaGVhZA==
Convert FROM Base64:
PS> [Text.Encoding]::Utf8.GetString([Convert]::FromBase64String('TW90w7ZyaGVhZA=='))
Motörhead
you can
float Lasttime;
public float Sec = 3f;
public int Num;
void Start(){
ExampleStart();
}
public void ExampleStart(){
Lasttime = Time.time;
}
void Update{
if(Time.time - Lasttime > sec){
// if(Num == step){
// Yourcode
//You Can Change Sec with => sec = YOURTIME(Float)
// Num++;
// ExampleStart();
}
if(Num == 0){
TextUI.text = "Welcome to Number Wizard!";
Num++;
ExampleStart();
}
if(Num == 1){
TextUI.text = ("The highest number you can pick is " + max);
Num++;
ExampleStart();
}
if(Num == 2){
TextUI.text = ("The lowest number you can pick is " + min);
Num++;
ExampleStart();
}
}
}
Khaled Developer
Easy For Gaming
var source = { firstName="Jane", lastname="Jones" };
var shallow = ShallowCopyOf(source);
var deep = DeepCopyOf(source);
source.lastName = "Smith";
WriteLine(source.lastName); // prints Smith
WriteLine(shallow.lastName); // prints Smith
WriteLine(deep.lastName); // prints Jones
I know this is a little old, but this but here is a concise function for counting regex patterns.
def regex_cnt(string, pattern):
return len(re.findall(pattern, string))
string = 'abc123'
regex_cnt(string, '[0-9]')
msbuild "C:\path to solution\project.sln"
Updated for Bootstrap 3.3.4:
This will allow you to have different display text and data value for each element. It will also persist the caret on selection.
JS:
$(".dropdown-menu li a").click(function(){
$(this).parents(".dropdown").find('.btn').html($(this).text() + ' <span class="caret"></span>');
$(this).parents(".dropdown").find('.btn').val($(this).data('value'));
});
HTML:
<div class="dropdown">
<button class="btn btn-default dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
Dropdown
<span class="caret"></span>
</button>
<ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
<li><a href="#" data-value="action">Action</a></li>
<li><a href="#" data-value="another action">Another action</a></li>
<li><a href="#" data-value="something else here">Something else here</a></li>
<li><a href="#" data-value="separated link">Separated link</a></li>
</ul>
</div>
prefer struct, and it's what std::greater do
struct Compare {
bool operator()(Node const&, Node &) {}
}
I've placed this code in the document ready function and it only triggers in internet explorer. Tested in Internet Explorer 11.
var ua = window.navigator.userAgent;
ms_ie = /MSIE|Trident/.test(ua);
if ( ms_ie ) {
//Do internet explorer exclusive behaviour here
}
<div style="cursor:pointer;" onclick="document.location='http://www.google.com'">Foo</div>
OffsetDateTime.parse( "2010-03-01T00:00:00-08:00" )
The answer by BalusC is correct, but now outdated as of Java 8.
The java.time framework is the successor to both Joda-Time library and the old troublesome date-time classes bundled with the earliest versions of Java (java.util.Date/.Calendar & java.text.SimpleDateFormat).
Your input data string happens to comply with the ISO 8601 standard.
The java.time classes use ISO 8601 formats by default when parsing/generating textual representations of date-time values. So no need to define a formatting pattern.
OffsetDateTimeThe OffsetDateTime class represents a moment on the time line adjusted to some particular offset-from-UTC. In your input, the offset is 8 hours behind UTC, commonly used on much of the west coast of North America.
OffsetDateTime odt = OffsetDateTime.parse( "2010-03-01T00:00:00-08:00" );
You seem to want the date-only, in which case use the LocalDate class. But keep in mind you are discarding data, (a) time-of-day, and (b) the time zone. Really, a date has no meaning without the context of a time zone. For any given moment the date varies around the world. For example, just after midnight in Paris is still “yesterday” in Montréal. So while I suggest sticking with date-time values, you can easily convert to a LocalDate if you insist.
LocalDate localDate = odt.toLocalDate();
If you know the intended time zone, apply it. A time zone is an offset plus the rules to use for handling anomalies such as Daylight Saving Time (DST). Applying a ZoneId gets us a ZonedDateTime object.
ZoneId zoneId = ZoneId.of( "America/Los_Angeles" );
ZonedDateTime zdt = odt.atZoneSameInstant( zoneId );
To generate a string in ISO 8601 format, call toString.
String output = odt.toString();
If you need strings in other formats, search Stack Overflow for use of the java.util.format package.
java.util.DateBest to avoid java.util.Date, but if you must, you can convert. Call the new methods added to the old classes such as java.util.Date.from where you pass an Instant. An Instant is a moment on the timeline in UTC. We can extract an Instant from our OffsetDateTime.
java.util.Date utilDate = java.util.Date( odt.toInstant() );
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.* classes.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more.
I know its quite late but for anyone looking to do it from now on, I hope this answer proves of some help. If you have CodeRush Express (free version, and a 'must have') installed, it offers a simple way to change a project wide namespace. You just place your cursor on the namespace that you want to change and it shall display a smart tag (a little blue box) underneath namespace string. You can either click that box or press Ctrl + keys to see the Rename option. Select it and then type in the new name for the project wide namespace, click Apply and select what places in your project you'd want it to change, in the new dialog and OK it. Done! :-)
You can use isset() for this very thing.
$myArr = array("Name" => "Jonathan");
print (isset($myArr["Name"])) ? "Exists" : "Doesn't Exist" ;
list is slower than arrays.If you need efficiency use arrays.If you need flexibility use list.
This code will always fail.
As written, it says: "Look for a property named "Employee" on my DataContext property, and set it to the DataContext property". Clearly that isn't right.
To get your code to work, as is, change your window declaration to:
<Window x:Class="SampleApplication.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:SampleApplication"
Title="MainWindow" Height="350" Width="525">
<Window.DataContext>
<local:Employee/>
</Window.DataContext>
This declares a new XAML namespace (local) and sets the DataContext to an instance of the Employee class. This will cause your bindings to display the default data (from your constructor).
However, it is highly unlikely this is actually what you want. Instead, you should have a new class (call it MainViewModel) with an Employee property that you then bind to, like this:
public class MainViewModel
{
public Employee MyEmployee { get; set; } //In reality this should utilize INotifyPropertyChanged!
}
Now your XAML becomes:
<Window x:Class="SampleApplication.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:SampleApplication"
Title="MainWindow" Height="350" Width="525">
<Window.DataContext>
<local:MainViewModel/>
</Window.DataContext>
...
<TextBox Grid.Column="1" Grid.Row="0" Margin="3" Text="{Binding MyEmployee.EmpID}" />
<TextBox Grid.Column="1" Grid.Row="1" Margin="3" Text="{Binding MyEmployee.EmpName}" />
Now you can add other properties (of other types, names), etc. For more information, see Implementing the Model-View-ViewModel Pattern
The below css works for both Chrome and Firefox
input[type=number]::-webkit-outer-spin-button,
input[type=number]::-webkit-inner-spin-button {
-webkit-appearance: none;
margin: 0;
}
input[type=number] {
-moz-appearance:textfield;
}
Per MSDN it is
By default, the maximum size of an Array is 2 gigabytes (GB).
In a 64-bit environment, you can avoid the size restriction by setting the enabled attribute of the gcAllowVeryLargeObjects configuration element to true in the run-time environment.
However, the array will still be limited to a total of 4 billion elements.
Refer Here http://msdn.microsoft.com/en-us/library/System.Array(v=vs.110).aspx
Note: Here I am focusing on the actual length of array by assuming that we will have enough hardware RAM.
Within the range 0 = c < 128, yes the ' is the only difference for CPython 2.6.
>>> set(unichr(c).encode('unicode_escape') for c in range(128)) - set(chr(c).encode('string_escape') for c in range(128))
set(["'"])
Outside of this range the two types are not exchangeable.
>>> '\x80'.encode('string_escape')
'\\x80'
>>> '\x80'.encode('unicode_escape')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can’t decode byte 0x80 in position 0: ordinal not in range(128)
>>> u'1'.encode('unicode_escape')
'1'
>>> u'1'.encode('string_escape')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: escape_encode() argument 1 must be str, not unicode
On Python 3.x, the string_escape encoding no longer exists, since str can only store Unicode.
Use the following JS:
$(document).ready(function () {
$("#btnsubmit").click(function () {
$.ajax({
type: "POST",
url: '/Plan/PlanManage', //your action
data: $('#PlanForm').serialize(), //your form name.it takes all the values of model
dataType: 'json',
success: function (result) {
console.log(result);
}
})
return false;
});
});
and the following code on your controller:
[HttpPost]
public string PlanManage(Plan objplan) //model plan
{
}
create a new class called ComboKeyValue.java
public class ComboKeyValue {
private String key;
private String value;
public ComboKeyValue(String key, String value) {
this.key = key;
this.value = value;
}
@Override
public String toString(){
return key;
}
public String getKey() {
return key;
}
public String getValue() {
return value;
}
}
when you want to add a new item, just write the code as below
DefaultComboBoxModel model = new DefaultComboBoxModel();
model.addElement(new ComboKeyValue("key", "value"));
properties.setModel(model);
You cannot create a method inside another method, move private boolean checkInternetConnection() { method out of onCreate
You can use Django's built-in validators—
from django.db.models import IntegerField, Model
from django.core.validators import MaxValueValidator, MinValueValidator
class CoolModelBro(Model):
limited_integer_field = IntegerField(
default=1,
validators=[
MaxValueValidator(100),
MinValueValidator(1)
]
)
Edit: When working directly with the model, make sure to call the model full_clean method before saving the model in order to trigger the validators. This is not required when using ModelForm since the forms will do that automatically.
if use more than one emulator at firs use this command
adb devices
and then chose amulatur and install application
adb -s "EMULATOR NAME" install "FILE PATH"
adb -s emulator-5556 install C:\Users\criss\youwave\WhatsApp.apk
this piece of code can do its job
UPDATE TOP (100) table_name set column_name = value;
If you want to show the last 100 records, you can use this if you need.
With OrnekWith
as
(
Select Top(100) * from table_name Order By ID desc
)
Update table_name Set column_name = value;
In English:
ContentType: When sending data to the server, use this content type. Default is application/x-www-form-urlencoded; charset=UTF-8, which is fine for most cases.Accepts: The content type sent in the request header that tells the server what kind of response it will accept in return. Depends on DataType.DataType: The type of data that you're expecting back from the server. If none is specified, jQuery will try to infer it based on the MIME type of the response. Can be text, xml, html, script, json, jsonp.If you are looping through a lot of cells, use the binary function, it is much faster. Using "<> 0" in place of "> 0" also makes it faster:
If InStrB(1, myString, "a", vbBinaryCompare) <> 0
from platform import python_version
print(python_version())
This will give you the exact version of python running your script. eg output:
3.6.5
data="UTF-8 data"
udata=data.decode("utf-8")
data=udata.encode("latin-1","ignore")
Should do it.
Button click event only.
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js" type="text/javascript"></script>
<script language="javascript" type="text/javascript">
$(document).ready(function () {
$("#btnext").click(function () {
window.open("HTMLPage.htm", "PopupWindow", "width=600,height=600,scrollbars=yes,resizable=no");
});
});
</script>
Try this on your position:fixed element.
overflow-y: scroll;
max-height: 100%;
try this:
select MIN(sal) from salary where sal in
(select sal from salary order by sal desc limit 9)
As other have said, compiled and interpreted are specific to an implementation of a programming language; they are not inherent in the language. For example, there are C interpreters.
However, we can (and in practice we do) classify programming languages based on its most common (sometimes canonical) implementation. For example, we say C is compiled.
First, we must define without ambiguity interpreters and compilers:
An interpreter for language X is a program (or a machine, or just some kind of mechanism in general) that executes any program p written in language X such that it performs the effects and evaluates the results as prescribed by the specification of X.
A compiler from X to Y is a program (or a machine, or just some kind of mechanism in general) that translates any program p from some language X into a semantically equivalent program p' in some language Y in such a way that interpreting p' with an interpreter for Y will yield the same results and have the same effects as interpreting p with an interpreter for X.
Notice that from a programmer point of view, CPUs are machine interpreters for their respective native machine language.
Now, we can do a tentative classification of programming languages into 3 categories depending on its most common implementation:
Sometimes, soft and hard compiled languages are refered to simply compiled, thus C#, Java, C, C++ are said to be compiled.
Within this categorization, JavaScript used to be an interpreted language, but that was many years ago. Nowadays, it is JIT-compiled to native machine language in most major JavaScript implementations so I would say that it falls into soft compiled languages.
You could simply look in the Active Record Rake tasks as that is where I believe they live as in this file. https://github.com/rails/rails/blob/fe1f4b2ad56f010a4e9b93d547d63a15953d9dc2/activerecord/lib/active_record/tasks/database_tasks.rb
What they do is your question right?
That depends on where they come from and this is just and example to show that they vary depending upon the task. Here we have a different file full of tasks.
https://github.com/rails/rails/blob/fe1f4b2ad56f010a4e9b93d547d63a15953d9dc2/activerecord/Rakefile
which has these tasks.
namespace :db do
task create: ["db:mysql:build", "db:postgresql:build"]
task drop: ["db:mysql:drop", "db:postgresql:drop"]
end
This may not answer your question but could give you some insight into go ahead and look the source over especially the rake files and tasks. As they do a pretty good job of helping you use rails they don't always document the code that well. We could all help there if we know what it is supposed to do.
MFMailComposeViewController is the way to go after the release of iPhone OS 3.0 software. You can look at the sample code or the tutorial I wrote.
just call your function inside the events.
load:
$(document).ready(function(){ // or $(window).load(function(){
topInViewport($(mydivname));
});
resize:
$(window).resize(function () {
topInViewport($(mydivname));
});
scroll:
$(window).scroll(function () {
topInViewport($(mydivname));
});
or bind all event in one function
$(window).on("load scroll resize",function(e){
You have to be specific about the columns you are selecting. If your user table had four columns id, name, username, opted_in you must select exactly those four columns from the query. The syntax looks like:
INSERT INTO user (id, name, username, opted_in)
SELECT id, name, username, opted_in
FROM user LEFT JOIN user_permission AS userPerm ON user.id = userPerm.user_id
However, there does not appear to be any reason to join against user_permission here, since none of the columns from that table would be inserted into user. In fact, this INSERT seems bound to fail with primary key uniqueness violations.
MySQL does not support inserts into multiple tables at the same time. You either need to perform two INSERT statements in your code, using the last insert id from the first query, or create an AFTER INSERT trigger on the primary table.
INSERT INTO user (name, username, email, opted_in) VALUES ('a','b','c',0);
/* Gets the id of the new row and inserts into the other table */
INSERT INTO user_permission (user_id, permission_id) VALUES (LAST_INSERT_ID(), 4)
Or using a trigger:
CREATE TRIGGER creat_perms AFTER INSERT ON `user`
FOR EACH ROW
BEGIN
INSERT INTO user_permission (user_id, permission_id) VALUES (NEW.id, 4)
END
With Groovy, you don't need the includes, and can just do:
String oldDate = '04-DEC-2012'
Date date = Date.parse( 'dd-MMM-yyyy', oldDate )
String newDate = date.format( 'M-d-yyyy' )
println newDate
To print:
12-4-2012
private void f(Button b, final int a[]) {
b.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
a[0] = a[0] * 5;
}
});
}
git commit -am "msg" is not same as git add file and git commit -m "msg"
If you have some files which were never added to git tracking you still need to do git add file
The “git commit -a” command is a shortcut to a two-step process. After you modify a file that is already known by the repo, you still have to tell the repo, “Hey! I want to add this to the staged files and eventually commit it to you.” That is done by issuing the “git add” command. “git commit -a” is staging the file and committing it in one step.
Source: "git commit -a" and "git add"
I just stumbled in here and I don't see why there is so much code required to achieve this.
Add your CSS code as a string.
let styles = `_x000D_
font-size:15em;_x000D_
color:red;_x000D_
transform:rotate(20deg)`_x000D_
_x000D_
document.querySelector('*').style = stylesadocker image prune removes all dangling images (those with tag none). docker image prune -a would also remove any images that have no container that uses them.
The difference between dangling and unused images is explained in this stackoverflow thread.
DISCLAMER: Following code creates different threads for each function.
This might be useful for some of the cases as it is simpler to use. But know that it is not async but gives illusion of async using multiple threads, even though decorator suggests that.
To make any function non blocking, simply copy the decorator and decorate any function with a callback function as parameter. The callback function will receive the data returned from the function.
import asyncio
import requests
def run_async(callback):
def inner(func):
def wrapper(*args, **kwargs):
def __exec():
out = func(*args, **kwargs)
callback(out)
return out
return asyncio.get_event_loop().run_in_executor(None, __exec)
return wrapper
return inner
def _callback(*args):
print(args)
# Must provide a callback function, callback func will be executed after the func completes execution !!
@run_async(_callback)
def get(url):
return requests.get(url)
get("https://google.com")
print("Non blocking code ran !!")
final RelativeLayout llLogin = (RelativeLayout) findViewById(R.id.rl_main);
llLogin.setOnTouchListener(
new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent ev) {
InputMethodManager imm = (InputMethodManager) this.getSystemService(
Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(this.getCurrentFocus().getWindowToken(), 0);
return false;
}
});
I encountered this error when the JDK that I compiled the app under was different from the tomcat JVM. I verified that the Tomcat manager was running jvm 1.6.0 but the app was compiled under java 1.7.0.
After upgrading Java and changing JAVA_HOME in our startup script (/etc/init.d/tomcat) the error went away.
package in.co.largestinarraylist;
import java.util.ArrayList;
import java.util.Scanner;
public class LargestInArrayList {
public static void main(String[] args) {
int n;
ArrayList<Integer> L = new ArrayList<Integer>();
int max;
Scanner in = new Scanner(System.in);
System.out.println("Enter Size of Array List");
n = in.nextInt();
System.out.println("Enter elements in Array List");
for (int i = 0; i < n; i++) {
L.add(in.nextInt());
}
max = L.get(0);
for (int i = 0; i < L.size(); i++) {
if (L.get(i) > max) {
max = L.get(i);
}
}
System.out.println("Max Element: " + max);
in.close();
}
}
A span tag is only as wide as its contents, so there is no 'center' of a span tag. There is no extra space on either side of the content.
A div tag, however, is as wide as its containing element, so the content of that div can be centered using any extra space that the content doesn't take up.
So if your div is 100px width and your content only takes 50px, the browser will divide the remaining 50px by 2 and pad 25px on each side of your content to center it.
Both console.log("story" + name + "story") and console.log("story", name, "story") works just fine as mentioned in earlier answers.
I will still suggest of having a habit of console.log("story", name, "story"), because, if trying to print the object contents, like json object, having "story" + objectVariable + "story" will convert it into string.
This will have output like : "story" [object Object] "story".
Just a good practice.
PHP by itself has no SMS module or functions and doesn't allow you to send SMS.
SMS ( Short Messaging System) is a GSM technology an you need a GSM provider that will provide this service for you and may have an PHP API implementation for it.
Usually people in telecom business use Asterisk to handle calls and sms programming.
Note: using // at the beginning of the xpath is a bit CPU intensitve -- it will search every node for a match. Using a more specific path, such as /root/DataSet will create a faster query.
value = value.setScale(2, RoundingMode.CEILING)
Make sure that you update your php.ini for CLI. For my case this was C:\wamp\bin\php\php5.4.3\php.ini and uncomment extension=php_openssl.dll line.
check the following link https://www.geeksforgeeks.org/how-to-create-an-unordered_map-of-user-defined-class-in-cpp/ for more details.
I had
runtime('mysql:mysql-connector-java')
Changed to
compile('mysql:mysql-connector-java')
Fixed my problem
You could skip the use of buttord, and instead just pick an order for the filter and see if it meets your filtering criterion. To generate the filter coefficients for a bandpass filter, give butter() the filter order, the cutoff frequencies Wn=[low, high] (expressed as the fraction of the Nyquist frequency, which is half the sampling frequency) and the band type btype="band".
Here's a script that defines a couple convenience functions for working with a Butterworth bandpass filter. When run as a script, it makes two plots. One shows the frequency response at several filter orders for the same sampling rate and cutoff frequencies. The other plot demonstrates the effect of the filter (with order=6) on a sample time series.
from scipy.signal import butter, lfilter
def butter_bandpass(lowcut, highcut, fs, order=5):
nyq = 0.5 * fs
low = lowcut / nyq
high = highcut / nyq
b, a = butter(order, [low, high], btype='band')
return b, a
def butter_bandpass_filter(data, lowcut, highcut, fs, order=5):
b, a = butter_bandpass(lowcut, highcut, fs, order=order)
y = lfilter(b, a, data)
return y
if __name__ == "__main__":
import numpy as np
import matplotlib.pyplot as plt
from scipy.signal import freqz
# Sample rate and desired cutoff frequencies (in Hz).
fs = 5000.0
lowcut = 500.0
highcut = 1250.0
# Plot the frequency response for a few different orders.
plt.figure(1)
plt.clf()
for order in [3, 6, 9]:
b, a = butter_bandpass(lowcut, highcut, fs, order=order)
w, h = freqz(b, a, worN=2000)
plt.plot((fs * 0.5 / np.pi) * w, abs(h), label="order = %d" % order)
plt.plot([0, 0.5 * fs], [np.sqrt(0.5), np.sqrt(0.5)],
'--', label='sqrt(0.5)')
plt.xlabel('Frequency (Hz)')
plt.ylabel('Gain')
plt.grid(True)
plt.legend(loc='best')
# Filter a noisy signal.
T = 0.05
nsamples = T * fs
t = np.linspace(0, T, nsamples, endpoint=False)
a = 0.02
f0 = 600.0
x = 0.1 * np.sin(2 * np.pi * 1.2 * np.sqrt(t))
x += 0.01 * np.cos(2 * np.pi * 312 * t + 0.1)
x += a * np.cos(2 * np.pi * f0 * t + .11)
x += 0.03 * np.cos(2 * np.pi * 2000 * t)
plt.figure(2)
plt.clf()
plt.plot(t, x, label='Noisy signal')
y = butter_bandpass_filter(x, lowcut, highcut, fs, order=6)
plt.plot(t, y, label='Filtered signal (%g Hz)' % f0)
plt.xlabel('time (seconds)')
plt.hlines([-a, a], 0, T, linestyles='--')
plt.grid(True)
plt.axis('tight')
plt.legend(loc='upper left')
plt.show()
Here are the plots that are generated by this script:
It is the NextStep (= NS) heritage. NeXT was the computer company that Steve Jobs formed after he quit Apple in 1985, and NextStep was it's operating system (UNIX based) together with the Obj-C language and runtime. Together with it's libraries and tools, NextStep was later renamed OpenStep (which was also the name on an API that NeXT developed together with Sun), which in turn later became Cocoa.
These different names are actually quite confusing (especially since some of the names differs only in which characters are upper or lower case..), try this for an explanation:
Use prop() instead of attr() to set the value of checked. Also use :checkbox in find method instead of input and be specific.
$("#news_list tr").click(function() {
var ele = $(this).find('input');
if(ele.is(':checked')){
ele.prop('checked', false);
$(this).removeClass('admin_checked');
}else{
ele.prop('checked', true);
$(this).addClass('admin_checked');
}
});
Use prop instead of attr for properties like checked
As of jQuery 1.6, the .attr() method returns undefined for attributes that have not been set. To retrieve and change DOM properties such as the checked, selected, or disabled state of form elements, use the .prop() method
Here the passage from the MSDN:
When you specify a PRIMARY KEY constraint for a table, the Database Engine enforces data uniqueness by creating a unique index for the primary key columns. This index also permits fast access to data when the primary key is used in queries. Therefore, the primary keys that are chosen must follow the rules for creating unique indexes.
on the basis of your only jQuery tag :)
HTML
<select id="my-select">
<option value="1">This is text 1</option>
<option value="2">This is text 2</option>
<option value="3">This is text 3</option>
</select>
For text --
$(document).ready(function() {
$("#my-select").change(function() {
alert($('#my-select option:selected').html());
});
});
For value --
$(document).ready(function() {
$("#my-select").change(function() {
alert($(this).val());
});
});
Create a new class MyView, Which extends View. Override the onDraw(Canvas canvas) method to draw rectangle on Canvas.
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.util.AttributeSet;
import android.view.View;
public class MyView extends View {
Paint paint;
Path path;
public MyView(Context context) {
super(context);
init();
}
public MyView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public MyView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
private void init(){
paint = new Paint();
paint.setColor(Color.BLUE);
paint.setStrokeWidth(10);
paint.setStyle(Paint.Style.STROKE);
}
@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
super.onDraw(canvas);
canvas.drawRect(30, 50, 200, 350, paint);
canvas.drawRect(100, 100, 300, 400, paint);
//drawRect(left, top, right, bottom, paint)
}
}
Then Move your Java activity to setContentView() using our custom View, MyView.Call this way.
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new MyView(this));
}
For more details you can visit here
http://developer.android.com/reference/android/graphics/Canvas.html
For Remove outline for anchor tag
a {outline : none;}
Remove outline from image link
a img {outline : none;}
Remove border from image link
img {border : 0;}
The root directory of a web application has a special significance and certain content can be present on in that folder. It can have a special file called as “Global.asax”. ASP.Net framework uses the content in the global.asax and creates a class at runtime which is inherited from HttpApplication. During the lifetime of an application, ASP.NET maintains a pool of Global.asax derived HttpApplication instances. When an application receives an http request, the ASP.Net page framework assigns one of these instances to process that request. That instance is responsible for managing the entire lifetime of the request it is assigned to and the instance can only be reused after the request has been completed when it is returned to the pool. The instance members in Global.asax cannot be used for sharing data across requests but static member can be. Global.asax can contain the event handlers of HttpApplication object and some other important methods which would execute at various points in a web application
Using the below line
SELECT LEFT(subject , 10) FROM tbl
Lars Haugseth answer only worked from the command line for me where it gives this error if executed from a shell script:
sort: multi-character tab ‘$\t’
The solution if it's coded in a shell script if anyone's looking is
sort -t' '
the tab character is in between the quote.
Did you read https://software.intel.com/en-us/blogs/2014/03/14/troubleshooting-intel-haxm?
It says "Make sure "Hyper-V", a Windows feature, is not installed/enabled on your system. Hyper-V captures the VT virtualization capability of the CPU, and HAXM and Hyper-V cannot run at the same time. Read this blog: Creating a "no hypervisor" boot entry." https://blogs.msdn.microsoft.com/virtual_pc_guy/2008/04/14/creating-a-no-hypervisor-boot-entry/
I've created the boot entry that disables HyperV and it's working
If you want more control, you might want to check the TextPaint class. Here is how to use it:
final ClickableSpan clickableSpan = new ClickableSpan() {
@Override
public void onClick(final View textView) {
//Your onClick code here
}
@Override
public void updateDrawState(final TextPaint textPaint) {
textPaint.setColor(yourContext.getResources().getColor(R.color.orange));
textPaint.setUnderlineText(true);
}
};