void QWidget::setWindowTitle ( const QString & )
EDIT: If you are using QtDesigner, on the property tab, there is an editable property called windowTitle which can be found under the QWidget section. The property tab can usually be found on the lower right part of the designer window.
My first suggestion is to use Designer to create your GUIs. Typing them out yourself sucks, takes more time, and you will definitely make more mistakes than Designer.
Here are some PyQt tutorials to help get you on the right track. The first one in the list is where you should start.
A good guide for figuring out what methods are available for specific classes is the PyQt4 Class Reference. In this case you would look up QLineEdit
and see the there is a text
method.
To answer your specific question:
To make your GUI elements available to the rest of the object, preface them with self.
import sys
from PyQt4.QtCore import SIGNAL
from PyQt4.QtGui import QDialog, QApplication, QPushButton, QLineEdit, QFormLayout
class Form(QDialog):
def __init__(self, parent=None):
super(Form, self).__init__(parent)
self.le = QLineEdit()
self.le.setObjectName("host")
self.le.setText("Host")
self.pb = QPushButton()
self.pb.setObjectName("connect")
self.pb.setText("Connect")
layout = QFormLayout()
layout.addWidget(self.le)
layout.addWidget(self.pb)
self.setLayout(layout)
self.connect(self.pb, SIGNAL("clicked()"),self.button_click)
self.setWindowTitle("Learning")
def button_click(self):
# shost is a QString object
shost = self.le.text()
print shost
app = QApplication(sys.argv)
form = Form()
form.show()
app.exec_()
You need to use brackets when using the fileExists
step in an if
condition or assign the returned value to a variable
Using variable:
def exists = fileExists 'file'
if (exists) {
echo 'Yes'
} else {
echo 'No'
}
Using brackets:
if (fileExists('file')) {
echo 'Yes'
} else {
echo 'No'
}
DO it like
$query = mysql_query("SELECT * FROM table WHERE the_number LIKE '$yourPHPVAR%'");
Do not forget the %
at the end
I can't guarantee it's the simplest, but I like MarkerWithLabel. As shown in the basic example, CSS styles define the label's appearance and options in the JavaScript define the content and placement.
.labels {
color: red;
background-color: white;
font-family: "Lucida Grande", "Arial", sans-serif;
font-size: 10px;
font-weight: bold;
text-align: center;
width: 60px;
border: 2px solid black;
white-space: nowrap;
}
JavaScript:
var marker = new MarkerWithLabel({
position: homeLatLng,
draggable: true,
map: map,
labelContent: "$425K",
labelAnchor: new google.maps.Point(22, 0),
labelClass: "labels", // the CSS class for the label
labelStyle: {opacity: 0.75}
});
The only part that may be confusing is the labelAnchor. By default, the label's top left corner will line up to the marker pushpin's endpoint. Setting the labelAnchor's x-value to half the width defined in the CSS width property will center the label. You can make the label float above the marker pushpin with an anchor point like new google.maps.Point(22, 50)
.
In case access to the links above are blocked, I copied and pasted the packed source of MarkerWithLabel into this JSFiddle demo. I hope JSFiddle is allowed in China :|
The EditorFor html helper does not have overloads that take HTML attributes. In this case, you need to use something more specific like TextBoxFor:
<div class="editor-field">
@Html.TextBoxFor(model => model.userName, new
{ disabled = "disabled", @readonly = "readonly" })
</div>
You can still use EditorFor, but you will need to have a TextBoxFor in a custom EditorTemplate:
public class MyModel
{
[UIHint("userName")]
public string userName { ;get; set; }
}
Then, in your Views/Shared/EditorTemplates folder, create a file userName.cshtml. In that file, put this:
@model string
@Html.TextBoxFor(m => m, new { disabled = "disabled", @readonly = "readonly" })
@GavinSimpson: reorder
is a powerful and effective solution for this:
ggplot(theTable,
aes(x=reorder(Position,Position,
function(x)-length(x)))) +
geom_bar()
You can save your image with any extension(png, jpg,etc.) and with the resolution you want. Here's a function to save your figure.
import os
def save_fig(fig_id, tight_layout=True, fig_extension="png", resolution=300):
path = os.path.join(IMAGES_PATH, fig_id + "." + fig_extension)
print("Saving figure", fig_id)
if tight_layout:
plt.tight_layout()
plt.savefig(path, format=fig_extension, dpi=resolution)
'fig_id' is the name by which you want to save your figure. Hope it helps:)
I had the same problem. A simple service docker restart
solved the problem.
You can await setTimeout
with Node.js 15 or above:
const timersPromises = require('timers/promises');
(async () => {
const result = await timersPromises.setTimeout(2000, 'resolved')
// Executed after 2 seconds
console.log(result); // "resolved"
})()
Timers Promises API: https://nodejs.org/api/timers.html#timers_timers_promises_api (library already built in Node)
Note: Stability: 1 - Use of the feature is not recommended in production environments.
You can check out this post on SuperUser.
Word starts page numbering over for each new section by default.
I do it slightly differently than the post above that goes through the ribbon menus, but in both methods you have to go through the document to each section's beginning.
My method:
Format Page Numbers
Continue from Previous Section
radio button under Page numbering
I find this right-click method to be a little faster. Also, usually if I insert the page numbers first before I start making any new sections, this problem doesn't happen in the first place.
You need to fetch the data from each row of the resultset obtained from the query. You can use mysql_fetch_array()
for this.
// Process all rows
while($row = mysql_fetch_array($result)) {
echo $row['column_name']; // Print a single column data
echo print_r($row); // Print the entire row data
}
Change your code to this :
require_once('db.php');
$sql="SELECT * FROM modul1open WHERE idM1O>=(SELECT FLOOR( MAX( idM1O ) * RAND( ) ) FROM modul1open)
ORDER BY idM1O LIMIT 1"
$result = mysql_query($sql);
while($row = mysql_fetch_array($result)) {
echo $row['fieldname'];
}
You JSON doesn't match your struct fields: E.g. "district" in JSON and "District" as the field.
Also: Your Item is a slice type but your JSON is a dict value. Do not mix this up. Slices decode from arrays.
You don't have to do anything really except prepare your phone to be able to run debug and usb apps :
http://developer.android.com/guide/developing/device.html
then simply launch your app from eclipse and your device will be used if you don't have a simulator running.
TL;DR: The only 100% correct method is to check for @-sign somewhere in the entered email address and then posting a validation message to given email address. If they can follow validation instructions in the email message, the inputted email address is correct.
Long answer:
David Gilbertson wrote about this years ago:
There are two questions we need to ask:
- Did the user understand that they were supposed to type an email address into this field?
- Did the user correctly type their own email address into this field?
If you have a well laid-out form with a label that says “email”, and the user enters an ‘@’ symbol somewhere, then it’s safe to say they understood that they were supposed to be entering an email address. Easy.
Next, we want to do some validation to ascertain if they correctly entered their email address.
Not possible.
[...]
Any mistype will definitely result in an incorrect email address, but only maybe result in an invalid email address.
[...]
There is no point in trying to work out if an email address is ‘valid’. A user is far more likely to enter a wrong and valid email address than they are to enter an invalid one.
In other words, it's important to notice that any kind of string based validation can only check if the syntax is invalid. It cannot check if the user can actually see the email (e.g. because the user already lost credentials, typed address of somebody else or typed work email instead of personal email address for a given use case). How often the question you're really after is "is this email syntactically valid" instead of "can I communicate with the user using given email address"? If you validate the string more than "does it contain @
", you're trying to answer the former question! Personally, I'm always interested about the latter question only.
In addition, some email addresses that may be syntactically or politically invalid, do work. For example, postmaster@ai
does technically work even though TLDs should not have MX records. Also see discussion about email validation on the WHATWG mailing list (where HTML5 is designed in the first place).
For static text:
For long text that needs to be updated once in a while:
For a number (formatted 00.0):
In your onDraw event only update the value variable sent to the shader.
precision highp float;
precision highp sampler2D;
uniform float uTime;
uniform float uValue;
uniform vec3 iResolution;
varying vec4 v_Color;
varying vec2 vTextureCoord;
uniform sampler2D s_texture;
void main() {
vec4 fragColor = vec4(1.0, 0.5, 0.2, 0.5);
vec2 uv = vTextureCoord;
float devisor = 10.75;
float digit;
float i;
float uCol;
float uRow;
if (uv.y < 0.45) {
if (uv.x > 0.75) {
digit = floor(uValue*10.0);
digit = digit - floor(digit/10.0)*10.0;
i = 48.0 - 32.0 + digit;
uRow = floor(i / 10.0);
uCol = i - 10.0 * uRow;
fragColor = texture2D( s_texture, uv / devisor * 2.0 + vec2((uCol-1.5) / devisor, uRow / devisor) );
} else if (uv.x > 0.5) {
uCol = 4.0;
uRow = 1.0;
fragColor = texture2D( s_texture, uv / devisor * 2.0 + vec2((uCol-1.0) / devisor, uRow / devisor) );
} else if (uv.x > 0.25) {
digit = floor(uValue);
digit = digit - floor(digit/10.0)*10.0;
i = 48.0 - 32.0 + digit;
uRow = floor(i / 10.0);
uCol = i - 10.0 * uRow;
fragColor = texture2D( s_texture, uv / devisor * 2.0 + vec2((uCol-0.5) / devisor, uRow / devisor) );
} else if (uValue >= 10.0) {
digit = floor(uValue/10.0);
digit = digit - floor(digit/10.0)*10.0;
i = 48.0 - 32.0 + digit;
uRow = floor(i / 10.0);
uCol = i - 10.0 * uRow;
fragColor = texture2D( s_texture, uv / devisor * 2.0 + vec2((uCol-0.0) / devisor, uRow / devisor) );
} else {
fragColor = vec4(0.0, 0.0, 0.0, 0.0);
}
} else {
fragColor = vec4(0.0, 0.0, 0.0, 0.0);
}
gl_FragColor = fragColor;
}
Above code works for a texture atlas where numbers start from 0 at the 7th column of the 2nd row of the font atlas (texture).
Refer to https://www.shadertoy.com/view/Xl23Dw for demonstration (with wrong texture though)
If you are using postgresql then you have to use column type BOOLEAN in lower case as boolean.
ALTER TABLE users ADD "priv_user" boolean DEFAULT false;
These are the ways :
1. /proc/meminfo
MemTotal: 8152200 kB
MemFree: 760808 kB
You can write a code or script to parse it.
2. Use sysconf by using below macros
sysconf (_SC_PHYS_PAGES) * sysconf (_SC_PAGESIZE);
3. By using sysinfo system call
int sysinfo(struct sysinfo *info);
struct sysinfo { .
.
unsigned long totalram; /*Total memory size to use */
unsigned long freeram; /* Available memory size*/
.
.
};
this doesn't work:
gcc -ldl dlopentest.c
But this does:
gcc dlopentest.c -ldl
That's one annoying "feature" for sure
I was struggling with it when writing heredoc syntax and found some interesting facts. With CC=Clang
, this works:
$CC -ldl -x c -o app.exe - << EOF
#include <dlfcn.h>
#include <stdio.h>
int main(void)
{
if(dlopen("libc.so.6", RTLD_LAZY | RTLD_GLOBAL))
printf("libc.so.6 loading succeeded\n");
else
printf("libc.so.6 loading failed\n");
return 0;
}
EOF
./app.exe
as well as all of these:
$CC -ldl -x c -o app.exe - << EOF
$CC -x c -ldl -o app.exe - << EOF
$CC -x c -o app.exe -ldl - << EOF
$CC -x c -o app.exe - -ldl << EOF
However, with CC=gcc
, only the last variant works; -ldl
after -
(the stdin argument symbol).
The new urllib3 library has a nice documentation here
In order to get your desired result you shuld follow that:
Import urllib3
from bs4 import BeautifulSoup
url = 'http://www.thefamouspeople.com/singers.php'
http = urllib3.PoolManager()
response = http.request('GET', url)
soup = BeautifulSoup(response.data.decode('utf-8'))
The "decode utf-8" part is optional. It worked without it when i tried, but i posted the option anyway.
Source: User Guide
Time to go back in time for a lesson. While we don't think about these things much in our fancy managed languages today, they are built on the same foundation, so let's look at how memory is managed in C.
Before I dive in, a quick explanation of what the term "pointer" means. A pointer is simply a variable that "points" to a location in memory. It doesn't contain the actual value at this area of memory, it contains the memory address to it. Think of a block of memory as a mailbox. The pointer would be the address to that mailbox.
In C, an array is simply a pointer with an offset, the offset specifies how far in memory to look. This provides O(1) access time.
MyArray [5]
^ ^
Pointer Offset
All other data structures either build upon this, or do not use adjacent memory for storage, resulting in poor random access look up time (Though there are other benefits to not using sequential memory).
For example, let's say we have an array with 6 numbers (6,4,2,3,1,5) in it, in memory it would look like this:
=====================================
| 6 | 4 | 2 | 3 | 1 | 5 |
=====================================
In an array, we know that each element is next to each other in memory. A C array (Called MyArray
here) is simply a pointer to the first element:
=====================================
| 6 | 4 | 2 | 3 | 1 | 5 |
=====================================
^
MyArray
If we wanted to look up MyArray[4]
, internally it would be accessed like this:
0 1 2 3 4
=====================================
| 6 | 4 | 2 | 3 | 1 | 5 |
=====================================
^
MyArray + 4 ---------------/
(Pointer + Offset)
Because we can directly access any element in the array by adding the offset to the pointer, we can look up any element in the same amount of time, regardless of the size of the array. This means that getting MyArray[1000]
would take the same amount of time as getting MyArray[5]
.
An alternative data structure is a linked list. This is a linear list of pointers, each pointing to the next node
======== ======== ======== ======== ========
| Data | | Data | | Data | | Data | | Data |
| | -> | | -> | | -> | | -> | |
| P1 | | P2 | | P3 | | P4 | | P5 |
======== ======== ======== ======== ========
P(X) stands for Pointer to next node.
Note that I made each "node" into its own block. This is because they are not guaranteed to be (and most likely won't be) adjacent in memory.
If I want to access P3, I can't directly access it, because I don't know where it is in memory. All I know is where the root (P1) is, so instead I have to start at P1, and follow each pointer to the desired node.
This is a O(N) look up time (The look up cost increases as each element is added). It is much more expensive to get to P1000 compared to getting to P4.
Higher level data structures, such as hashtables, stacks and queues, all may use an array (or multiple arrays) internally, while Linked Lists and Binary Trees usually use nodes and pointers.
You might wonder why anyone would use a data structure that requires linear traversal to look up a value instead of just using an array, but they have their uses.
Take our array again. This time, I want to find the array element that holds the value '5'.
=====================================
| 6 | 4 | 2 | 3 | 1 | 5 |
=====================================
^ ^ ^ ^ ^ FOUND!
In this situation, I don't know what offset to add to the pointer to find it, so I have to start at 0, and work my way up until I find it. This means I have to perform 6 checks.
Because of this, searching for a value in an array is considered O(N). The cost of searching increases as the array gets larger.
Remember up above where I said that sometimes using a non sequential data structure can have advantages? Searching for data is one of these advantages and one of the best examples is the Binary Tree.
A Binary Tree is a data structure similar to a linked list, however instead of linking to a single node, each node can link to two children nodes.
==========
| Root |
==========
/ \
========= =========
| Child | | Child |
========= =========
/ \
========= =========
| Child | | Child |
========= =========
Assume that each connector is really a Pointer
When data is inserted into a binary tree, it uses several rules to decide where to place the new node. The basic concept is that if the new value is greater than the parents, it inserts it to the left, if it is lower, it inserts it to the right.
This means that the values in a binary tree could look like this:
==========
| 100 |
==========
/ \
========= =========
| 200 | | 50 |
========= =========
/ \
========= =========
| 75 | | 25 |
========= =========
When searching a binary tree for the value of 75, we only need to visit 3 nodes ( O(log N) ) because of this structure:
Even though there are 5 nodes in our tree, we did not need to look at the remaining two, because we knew that they (and their children) could not possibly contain the value we were looking for. This gives us a search time that at worst case means we have to visit every node, but in the best case we only have to visit a small portion of the nodes.
That is where arrays get beat, they provide a linear O(N) search time, despite O(1) access time.
This is an incredibly high level overview on data structures in memory, skipping over a lot of details, but hopefully it illustrates an array's strength and weakness compared to other data structures.
I would suggest you to use either an image or text. So, Remove the text and add it in your image(using Photoshop, maybe). Then, Use a width and height 100% for the image. it will do the trick. because the image can be resized based on the container. But, you have to manually resize the text. If you can provide the fiddle, I can help you achieve this.
For me, I tried the above. Turns out my USB cable was bad. I changed the cable and then it worked.
Beside putting the script in through functions you can "just" include a link ( a link rel tag that is) in the header, the footer, in any template, where ever. You just need to make sure the path is correct. I suggest using something like this (assuming you are in your theme's directory).
<script type="javascript" href="<?php echo get_template_directory_uri();?>/your-file.js"></script>
A good practice is to include this right before the closing body tag or at least just prior to your footer. You can also use php includes, or several other methods of pulling this file in.
<script type="javascript"><?php include('your-file.js');?></script>
This is not answering the question itself, but I found this question searching for the solution to convert a string to symbol and use it on a hash.
hsh = Hash.new
str_to_symbol = "Book Author Title".downcase.gsub(/\s+/, "_").to_sym
hsh[str_to_symbol] = 10
p hsh
# => {book_author_title: 10}
Hope it helps someone like me!
Simply add Views at the top and bottom of the View
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/your_color"
app:layout_constraintBottom_toTopOf="@+id/textView"
app:layout_constraintEnd_toEndOf="@+id/textView"
app:layout_constraintStart_toStartOf="@+id/textView" />
<TextView
android:id="@+id/textView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="32dp"
android:gravity="center"
android:text="Testing"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/your_color"
app:layout_constraintEnd_toEndOf="@+id/textView"
app:layout_constraintStart_toStartOf="@+id/textView"
app:layout_constraintTop_toBottomOf="@+id/textView" />
</android.support.constraint.ConstraintLayout>
I encountered the same problem in the code and What I did is I found out all the changes I have made from the last correct compilation. And I have observed one function declaration was without ";" and also it was passing a value and I have declared it to pass nothing "void". this method will surely solve the problem for many.
Viscon
And i think, the line:
string cleanMessage = message.Replace("'", "\'");
does not work, it must be:
string cleanMessage = message.Replace("'", "\\\'");
You need to mask the \
with a \
and the '
with another \
.
!python 'script.py'
replace script.py with your real file name, DON'T forget ''
Use the INTERVAL
type to it. E.g:
--yesterday
SELECT NOW() - INTERVAL '1 DAY';
--Unrelated to the question, but PostgreSQL also supports some shortcuts:
SELECT 'yesterday'::TIMESTAMP, 'tomorrow'::TIMESTAMP, 'allballs'::TIME;
Then you can do the following on your query:
SELECT
org_id,
count(accounts) AS COUNT,
((date_at) - INTERVAL '1 DAY') AS dateat
FROM
sourcetable
WHERE
date_at <= now() - INTERVAL '130 DAYS'
GROUP BY
org_id,
dateat;
You can append multiple operands. E.g.: how to get last day of current month?
SELECT date_trunc('MONTH', CURRENT_DATE) + INTERVAL '1 MONTH - 1 DAY';
You can also create an interval using make_interval
function, useful when you need to create it at runtime (not using literals):
SELECT make_interval(days => 10 + 2);
SELECT make_interval(days => 1, hours => 2);
SELECT make_interval(0, 1, 0, 5, 0, 0, 0.0);
I know this has an accepted answer but if anyone comes upon this, my solution may help.
I found this question because I have a use-case where I wanted to turn off the :hover state for elements individually. Since there is no way to do this in the DOM, another good way to do it is to define a class in CSS that overrides the hover state.
For instance, the css:
.nohover:hover {
color: black !important;
}
Then with jQuery:
$("#elm").addClass("nohover");
With this method, you can override as many DOM elements as you would like without binding tons of onHover events.
Some people recommend using HTTP status codes, but I rather despise that practice. e.g. If you're doing a search engine and the provided keywords have no results, the suggestion would be to return a 404 error.
However, I consider that wrong. HTTP status codes apply to the actual browser<->server connection. Everything about the connect went perfectly. The browser made a request, the server invoked your handler script. The script returned 'no rows'. Nothing in that signifies "404 page not found" - the page WAS found.
Instead, I favor divorcing the HTTP layer from the status of your server-side operations. Instead of simply returning some text in a json string, I always return a JSON data structure which encapsulates request status and request results.
e.g. in PHP you'd have
$results = array(
'error' => false,
'error_msg' => 'Everything A-OK',
'data' => array(....results of request here ...)
);
echo json_encode($results);
Then in your client-side code you'd have
if (!data.error) {
... got data, do something with it ...
} else {
... invoke error handler ...
}
#include<boost/range/numeric.hpp>
int sum = boost::accumulate(vector, 0);
Let's look at both ways:
(function(){
var i2 = i;
setTimeout(function(){
console.log(i2);
}, 1000)
})();
Declares and immediately executes an anonymous function that runs setTimeout()
within its own context. The current value of i
is preserved by making a copy into i2
first; it works because of the immediate execution.
setTimeout((function(i2){
return function() {
console.log(i2);
}
})(i), 1000);
Declares an execution context for the inner function whereby the current value of i
is preserved into i2
; this approach also uses immediate execution to preserve the value.
Important
It should be mentioned that the run semantics are NOT the same between both approaches; your inner function gets passed to setTimeout()
whereas his inner function calls setTimeout()
itself.
Wrapping both codes inside another setTimeout()
doesn't prove that only the second approach uses closures, there's just not the same thing to begin with.
Conclusion
Both methods use closures, so it comes down to personal taste; the second approach is easier to "move" around or generalize.
It doesn't recognize that you have a master branch, but I found a way to get around it. I found out that there's nothing special about a master branch, you can just create another branch and call it master branch and that's what I did.
To create a master branch:
git checkout -b master
And you can work off of that.
You are certainly overwriting your stack, but the program is simple enough that effects of this go unnoticed.
Try below solution to draw path with animation and also get time and distance between two points.
DirectionHelper.java
public class DirectionHelper {
public List<List<HashMap<String, String>>> parse(JSONObject jObject) {
List<List<HashMap<String, String>>> routes = new ArrayList<>();
JSONArray jRoutes;
JSONArray jLegs;
JSONArray jSteps;
JSONObject jDistance = null;
JSONObject jDuration = null;
try {
jRoutes = jObject.getJSONArray("routes");
/** Traversing all routes */
for (int i = 0; i < jRoutes.length(); i++) {
jLegs = ((JSONObject) jRoutes.get(i)).getJSONArray("legs");
List path = new ArrayList<>();
/** Traversing all legs */
for (int j = 0; j < jLegs.length(); j++) {
/** Getting distance from the json data */
jDistance = ((JSONObject) jLegs.get(j)).getJSONObject("distance");
HashMap<String, String> hmDistance = new HashMap<String, String>();
hmDistance.put("distance", jDistance.getString("text"));
/** Getting duration from the json data */
jDuration = ((JSONObject) jLegs.get(j)).getJSONObject("duration");
HashMap<String, String> hmDuration = new HashMap<String, String>();
hmDuration.put("duration", jDuration.getString("text"));
/** Adding distance object to the path */
path.add(hmDistance);
/** Adding duration object to the path */
path.add(hmDuration);
jSteps = ((JSONObject) jLegs.get(j)).getJSONArray("steps");
/** Traversing all steps */
for (int k = 0; k < jSteps.length(); k++) {
String polyline = "";
polyline = (String) ((JSONObject) ((JSONObject) jSteps.get(k)).get("polyline")).get("points");
List<LatLng> list = decodePoly(polyline);
/** Traversing all points */
for (int l = 0; l < list.size(); l++) {
HashMap<String, String> hm = new HashMap<>();
hm.put("lat", Double.toString((list.get(l)).latitude));
hm.put("lng", Double.toString((list.get(l)).longitude));
path.add(hm);
}
}
routes.add(path);
}
}
} catch (JSONException e) {
e.printStackTrace();
} catch (Exception e) {
}
return routes;
}
//Method to decode polyline points
private List<LatLng> decodePoly(String encoded) {
List<LatLng> poly = new ArrayList<>();
int index = 0, len = encoded.length();
int lat = 0, lng = 0;
while (index < len) {
int b, shift = 0, result = 0;
do {
b = encoded.charAt(index++) - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lat += dlat;
shift = 0;
result = 0;
do {
b = encoded.charAt(index++) - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lng += dlng;
LatLng p = new LatLng((((double) lat / 1E5)),
(((double) lng / 1E5)));
poly.add(p);
}
return poly;
}
}
GetPathFromLocation.java
public class GetPathFromLocation extends AsyncTask<String, Void, List<List<HashMap<String, String>>>> {
private Context context;
private String TAG = "GetPathFromLocation";
private LatLng source, destination;
private ArrayList<LatLng> wayPoint;
private GoogleMap mMap;
private boolean animatePath, repeatDrawingPath;
private DirectionPointListener resultCallback;
private ProgressDialog progressDialog;
//https://www.mytrendin.com/draw-route-two-locations-google-maps-android/
//https://www.androidtutorialpoint.com/intermediate/google-maps-draw-path-two-points-using-google-directions-google-map-android-api-v2/
public GetPathFromLocation(Context context, LatLng source, LatLng destination, ArrayList<LatLng> wayPoint, GoogleMap mMap, boolean animatePath, boolean repeatDrawingPath, DirectionPointListener resultCallback) {
this.context = context;
this.source = source;
this.destination = destination;
this.wayPoint = wayPoint;
this.mMap = mMap;
this.animatePath = animatePath;
this.repeatDrawingPath = repeatDrawingPath;
this.resultCallback = resultCallback;
}
synchronized public String getUrl(LatLng source, LatLng dest, ArrayList<LatLng> wayPoint) {
String url = "https://maps.googleapis.com/maps/api/directions/json?sensor=false&mode=driving&origin="
+ source.latitude + "," + source.longitude + "&destination=" + dest.latitude + "," + dest.longitude;
for (int centerPoint = 0; centerPoint < wayPoint.size(); centerPoint++) {
if (centerPoint == 0) {
url = url + "&waypoints=optimize:true|" + wayPoint.get(centerPoint).latitude + "," + wayPoint.get(centerPoint).longitude;
} else {
url = url + "|" + wayPoint.get(centerPoint).latitude + "," + wayPoint.get(centerPoint).longitude;
}
}
url = url + "&key=" + context.getResources().getString(R.string.google_api_key);
return url;
}
public int getRandomColor() {
Random rnd = new Random();
return Color.argb(255, rnd.nextInt(256), rnd.nextInt(256), rnd.nextInt(256));
}
@Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog = new ProgressDialog(context);
progressDialog.setMessage("Please wait...");
progressDialog.setIndeterminate(false);
progressDialog.setCancelable(false);
progressDialog.show();
}
@Override
protected List<List<HashMap<String, String>>> doInBackground(String... url) {
String data;
try {
InputStream inputStream = null;
HttpURLConnection connection = null;
try {
URL directionUrl = new URL(getUrl(source, destination, wayPoint));
connection = (HttpURLConnection) directionUrl.openConnection();
connection.connect();
inputStream = connection.getInputStream();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
StringBuffer stringBuffer = new StringBuffer();
String line = "";
while ((line = bufferedReader.readLine()) != null) {
stringBuffer.append(line);
}
data = stringBuffer.toString();
bufferedReader.close();
} catch (Exception e) {
Log.e(TAG, "Exception : " + e.toString());
return null;
} finally {
inputStream.close();
connection.disconnect();
}
Log.e(TAG, "Background Task data : " + data);
//Second AsyncTask
JSONObject jsonObject;
List<List<HashMap<String, String>>> routes = null;
try {
jsonObject = new JSONObject(data);
// Starts parsing data
DirectionHelper helper = new DirectionHelper();
routes = helper.parse(jsonObject);
Log.e(TAG, "Executing Routes : "/*, routes.toString()*/);
return routes;
} catch (Exception e) {
Log.e(TAG, "Exception in Executing Routes : " + e.toString());
return null;
}
} catch (Exception e) {
Log.e(TAG, "Background Task Exception : " + e.toString());
return null;
}
}
@Override
protected void onPostExecute(List<List<HashMap<String, String>>> result) {
super.onPostExecute(result);
if (progressDialog.isShowing()) {
progressDialog.dismiss();
}
ArrayList<LatLng> points;
PolylineOptions lineOptions = null;
String distance = "";
String duration = "";
// Traversing through all the routes
for (int i = 0; i < result.size(); i++) {
points = new ArrayList<>();
lineOptions = new PolylineOptions();
// Fetching i-th route
List<HashMap<String, String>> path = result.get(i);
// Fetching all the points in i-th route
for (int j = 0; j < path.size(); j++) {
HashMap<String, String> point = path.get(j);
if (j == 0) { // Get distance from the list
distance = (String) point.get("distance");
continue;
} else if (j == 1) { // Get duration from the list
duration = (String) point.get("duration");
continue;
}
double lat = Double.parseDouble(point.get("lat"));
double lng = Double.parseDouble(point.get("lng"));
LatLng position = new LatLng(lat, lng);
points.add(position);
}
// Adding all the points in the route to LineOptions
lineOptions.addAll(points);
lineOptions.width(8);
lineOptions.color(Color.RED);
//lineOptions.color(getRandomColor());
if (animatePath) {
final ArrayList<LatLng> finalPoints = points;
((AppCompatActivity) context).runOnUiThread(new Runnable() {
@Override
public void run() {
PolylineOptions polylineOptions;
final Polyline greyPolyLine, blackPolyline;
final ValueAnimator polylineAnimator;
LatLngBounds.Builder builder = new LatLngBounds.Builder();
for (LatLng latLng : finalPoints) {
builder.include(latLng);
}
polylineOptions = new PolylineOptions();
polylineOptions.color(Color.RED);
polylineOptions.width(8);
polylineOptions.startCap(new SquareCap());
polylineOptions.endCap(new SquareCap());
polylineOptions.jointType(ROUND);
polylineOptions.addAll(finalPoints);
greyPolyLine = mMap.addPolyline(polylineOptions);
polylineOptions = new PolylineOptions();
polylineOptions.width(8);
polylineOptions.color(Color.WHITE);
polylineOptions.startCap(new SquareCap());
polylineOptions.endCap(new SquareCap());
polylineOptions.zIndex(5f);
polylineOptions.jointType(ROUND);
blackPolyline = mMap.addPolyline(polylineOptions);
polylineAnimator = ValueAnimator.ofInt(0, 100);
polylineAnimator.setDuration(5000);
polylineAnimator.setInterpolator(new LinearInterpolator());
polylineAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
List<LatLng> points = greyPolyLine.getPoints();
int percentValue = (int) valueAnimator.getAnimatedValue();
int size = points.size();
int newPoints = (int) (size * (percentValue / 100.0f));
List<LatLng> p = points.subList(0, newPoints);
blackPolyline.setPoints(p);
}
});
polylineAnimator.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
if (repeatDrawingPath) {
List<LatLng> greyLatLng = greyPolyLine.getPoints();
if (greyLatLng != null) {
greyLatLng.clear();
}
polylineAnimator.start();
}
}
@Override
public void onAnimationCancel(Animator animation) {
polylineAnimator.cancel();
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
polylineAnimator.start();
}
});
}
Log.e(TAG, "PolylineOptions Decoded");
}
// Drawing polyline in the Google Map for the i-th route
if (resultCallback != null && lineOptions != null)
resultCallback.onPath(lineOptions, distance, duration);
}
}
DirectionPointListener
public interface DirectionPointListener {
public void onPath(PolylineOptions polyLine,String distance,String duration);
}
Now draw path using below code in your Activity
private GoogleMap mMap;
private ArrayList<LatLng> wayPoint = new ArrayList<>();
private SupportMapFragment mapFragment;
mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
mMap.setOnMapLoadedCallback(new GoogleMap.OnMapLoadedCallback() {
@Override
public void onMapLoaded() {
LatLngBounds.Builder builder = new LatLngBounds.Builder();
/*Add Source Marker*/
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(source);
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN));
mMap.addMarker(markerOptions);
builder.include(source);
/*Add Destination Marker*/
markerOptions = new MarkerOptions();
markerOptions.position(destination);
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED));
mMap.addMarker(markerOptions);
builder.include(destination);
LatLngBounds bounds = builder.build();
int width = mapFragment.getView().getMeasuredWidth();
int height = mapFragment.getView().getMeasuredHeight();
int padding = (int) (width * 0.15); // offset from edges of the map 10% of screen
CameraUpdate cu = CameraUpdateFactory.newLatLngBounds(bounds, width, height, padding);
mMap.animateCamera(cu);
new GetPathFromLocation(context, source, destination, wayPoint, mMap, true, false, new DirectionPointListener() {
@Override
public void onPath(PolylineOptions polyLine, String distance, String duration) {
mMap.addPolyline(polyLine);
Log.e(TAG, "onPath :: Distance :: " + distance + " Duration :: " + duration);
binding.txtDistance.setText(String.format(" %s", distance));
binding.txtDuration.setText(String.format(" %s", duration));
}
}).execute();
}
});
}
OutPut
I hope this can help you!
Thank You.
function printr($data)
{
echo "<pre>";
print_r($data);
echo "</pre>";
}
And call your function on the page you need, don't forget to include the file where you put your function in for example: functions.php
include('functions.php');
printr($data);
I am late to this question, but I think the best way to handle JDK versions on MacOS is by using the script described at: http://www.jayway.com/2014/01/15/how-to-switch-jdk-version-on-mac-os-x-maverick/
There is a way this can be done, but it needs to be planned carefully. Take for example the following QBASIC program:
1 A = 1; B = 10;
10 print "A = ",A;
20 IF (A < B) THEN A = A + 1; GOTO 10
30 PRINT "That's the end."
Then create your JavaScript to initialize all variables first, followed by making an initial function call to start the ball rolling (we execute this initial function call at the end), and set up functions for every set of lines that you know will be executed in the one unit.
Follow this with the initial function call...
var a, b;
function fa(){
a = 1;
b = 10;
fb();
}
function fb(){
document.write("a = "+ a + "<br>");
fc();
}
function fc(){
if(a<b){
a++;
fb();
return;
}
else
{
document.write("That's the end.<br>");
}
}
fa();
The result in this instance is:
a = 1
a = 2
a = 3
a = 4
a = 5
a = 6
a = 7
a = 8
a = 9
a = 10
That's the end.
Most probably the error will be related to the AppModule.ts file.
To solve this issue check whether every component is declared and every service that we declare is put in the providers etc.
And even if everything seems right in the AppModule file and you still get the error, then stop your running angular instance and restart it once again. That may solve your issue if everything in the module file is correct and if you are still getting the error.
This is to help fill in the gaps in Adrien Plisson's answer (which should be upvoted as soon as he edits it ;-):
you can also get the fully qualified path of your first argument by using %~f1, but this gives a path according to the current path, which is obviously not what you want.
unfortunately, i don't know how to mix the 2 together...
One can handle %0
and %1
likewise:
%~dpnx0
for fully qualified drive+path+name+extension of the batchfile itself,%~f0
also suffices;%~dpnx1
for fully qualified drive+path+name+extension of its first argument [if that's a filename at all],%~f1
also suffices;%~f1
will work independent of how you did specify your first argument: with relative paths or with absolute paths (if you don't specify the file's extension when naming %1
, it will not be added, even if you use %~dpnx1
-- however.
But how on earth would you name a file on a different drive anyway if you wouldn't give that full path info on the commandline in the first place?
However, %~p0
, %~n0
, %~nx0
and %~x0
may come in handy, should you be interested in path (without driveletter), filename (without extension), full filename with extension or filename's extension only. But note, while %~p1
and %~n1
will work to find out the path or name of the first argument, %~nx1
and %~x1
will not add+show the extension, unless you used it on the commandline already.
I spent a lot of time on this issue and none of above solutions work for me. The names and number of build types were also exactly equal in both app and library project.
The only mistake I was making was - In library project's build.gradle, I was using line
apply plugin: 'com.android.application'
While this line should be -
apply plugin: 'com.android.library'
After making this change, this error got resolved.
I use this piece of code, it works OK with me so far. This does not use many fancy features of C++:
bool is_file_exist(const char *fileName)
{
std::ifstream infile(fileName);
return infile.good();
}
In my case I was getting this error while making an AJAX post, it turned out to be that the __RequestVerificationToken
value wasn't being passed across in the call. I had to manually find the value of this field and set this as a property on the data object that's sent to the endpoint.
i.e.
data.__RequestVerificationToken = $('input[name="__RequestVerificationToken"]').val();
HTML
<form id="myForm">
@Html.AntiForgeryToken()
<!-- other input fields -->
<input type="submit" class="submitButton" value="Submit" />
</form>
Javascript
$(document).on('click', '#myForm .submitButton', function () {
var myData = { ... };
myData.__RequestVerificationToken = $('#myForm input[name="__RequestVerificationToken"]').val();
$.ajax({
type: 'POST',
url: myUrl,
data: myData,
contentType: 'application/x-www-form-urlencoded; charset=utf-8',
dataType: 'json',
success: function (response) {
alert('Form submitted');
},
error: function (e) {
console.error('Error submitting form', e);
alert('Error submitting form');
},
});
return false; //prevent form reload
});
Controller
[HttpPost]
[Route("myUrl")]
[ValidateAntiForgeryToken]
public async Task<ActionResult> MyUrlAsync(MyDto dto)
{
...
}
Note that the fields must be in the same order. If the Primary Key you are referencing is specified as (Application, ID) then your foreign key must reference (Application, ID) and NOT (ID, Application) as they are seen as two different keys.
If I understood correctly, I would change the HTML to something like this:
<div id="shop">
<div class="content">
<img src="http://placehold.it/182x121"/>
<a href="#">Counter-Strike 1.6 Steam</a>
</div>
</div>
Then I would be able to use position:absolute
and position:relative
to force the blue button down.
I have created a jsfiddle: http://jsfiddle.net/y9w99/
Here are some reference for you:
Primary & foreign key Constraint.
Primary Key: A primary key is a field or combination of fields that uniquely identify a record in a table, so that an individual record can be located without confusion.
Foreign Key: A foreign key (sometimes called a referencing key) is a key used to link two tables together. Typically you take the primary key field from one table and insert it into the other table where it becomes a foreign key (it remains a primary key in the original table).
Index, on the other hand, is an attribute that you can apply on some columns so that the data retrieval done on those columns can be speed up.
Note: This assumes that you will declare constants for row and column indexes named COLUMN_HEADING_ROW
, FIRST_COL
, and LAST_COL
, and that _xlSheet
is the name of the ExcelSheet
(using Microsoft.Interop.Excel
)
First, define the range:
var columnHeadingsRange = _xlSheet.Range[
_xlSheet.Cells[COLUMN_HEADING_ROW, FIRST_COL],
_xlSheet.Cells[COLUMN_HEADING_ROW, LAST_COL]];
Then, set the background color of that range:
columnHeadingsRange.Interior.Color = XlRgbColor.rgbSkyBlue;
Finally, set the font color:
columnHeadingsRange.Font.Color = XlRgbColor.rgbWhite;
And here's the code combined:
var columnHeadingsRange = _xlSheet.Range[
_xlSheet.Cells[COLUMN_HEADING_ROW, FIRST_COL],
_xlSheet.Cells[COLUMN_HEADING_ROW, LAST_COL]];
columnHeadingsRange.Interior.Color = XlRgbColor.rgbSkyBlue;
columnHeadingsRange.Font.Color = XlRgbColor.rgbWhite;
I will hijack this thread to point out that this error may also happen when target of Popen is not executable. Learnt it hard way when by accident I have had override a perfectly executable binary file with zip file.
Or, as an alternate, parse the resource ID with the following code:
mComponentName.setBackgroundColor(getResources().getColor(android.R.color.transparent));
StringBuffer sb = new SringBuffer();
// do something wiht it
sb = new StringBuffer();
i think this code is faster.
Like bruno said, you're better configuring it yourself. Here's how I do it. Start by creating a properties file (/etc/myapp/config.properties).
javax.net.ssl.keyStore = /etc/myapp/keyStore
javax.net.ssl.keyStorePassword = 123456
Then load the properties to your environment from your code. This makes your application configurable.
FileInputStream propFile = new FileInputStream("/etc/myapp/config.properties");
Properties p = new Properties(System.getProperties());
p.load(propFile);
System.setProperties(p);
had a same problem few minutes ago and just content:none;
did not do work but adding content:none !important;
and display:none !important;
worked for me
speaking from computation and memory bound point of view (scientific computing) 4000 threads will make application run really slow. Part of the problem is a very high overhead of context switching and most likely very poor memory locality.
But it also depends on your architecture. From where I heard Niagara processors are suppose to be able to handle multiple threads on a single core using some kind of advanced pipelining technique. However I have no experience with those processors.
Consider using Windmill , although Windmill probably cant do that many threads.
You could do it with a hand rolled Python script on 5 machines, each one connecting outbound using ports 40000-60000, opening 100,000 port connections.
Also, it might help to do a sample test with a nicely threaded QA app such as OpenSTA in order to get an idea of how much each server can handle.
Also, try looking into just using simple Perl with the LWP::ConnCache class. You'll probably get more performance (more connections) that way.
If you have used chmod command already then check the difference of file, It shows previous file mode and current file mode such as:
new mode : 755
old mode : 644
set old mode of all files using below command
sudo chmod 644 .
now set core.fileMode to false in config file either using command or manually.
git config core.fileMode false
then apply chmod command to change the permissions of all files such as
sudo chmod 755 .
and again set core.fileMode to true.
git config core.fileMode true
For best practises don't Keep core.fileMode false always.
d = {} is an empty object right now.
And d[a] is also an empty object.
It does not have any key values. So you should initialize the key values to this.
d[a] = {
greetings:'',
data:''
}
This is the simplest example of function pointers and function pointer arrays that I wrote as an exercise.
typedef double (*pf)(double x); /*this defines a type pf */
double f1(double x) { return(x+x);}
double f2(double x) { return(x*x);}
pf pa[] = {f1, f2};
main()
{
pf p;
p = pa[0];
printf("%f\n", p(3.0));
p = pa[1];
printf("%f\n", p(3.0));
}
My fourpenneth: my SSH keys were set up in Cygwin, at C:\cygwin\home\<user>.ssh, so I pointed SSH to this folder instead of the default (Win7) C:\Users\<user>\ssh, as per these instructions: http://wiki.eclipse.org/EGit/User_Guide/Remote#Eclipse_SSH_Configuration
and used the ssh protocol, and it works fine. Trying to use the git protocol still gives "User not supported on the git protocol", though.
Try this app http://www.ketzler.de/2011/01/resign-an-iphone-app-insert-new-bundle-id-and-send-to-xcode-organizer-for-upload/
It supposed to help you resign the IPA file. I tried it myself but couldn't get pass an error with Entitlements.plist. Could just be a problem with my project. You should give it a try.
So this is probably waaaaaay late to the party but the actual problem is an error or rather the repetition of the same error in three batch files.
C:\Program Files(x86)\Microsoft Visual Studio 10.0\Common7\Tools\VCVarsQueryRegistry.bat
C:\Program Files(x86)\Microsoft Visual Studio 10.0\Common7\Tools\vsvars32.bat
C:\Program Files(x86)\Microsoft Visual Studio 10.0\VC\bin\vcvars32.bat
The pattern of the error is everywhere a for loop is used to loop through registry values. It looks like this:
@for /F "tokens=1,2*" %%i in ('reg query "%1\SOFTWARE\Microsoft\VisualStudio\SxS\VS7" /v "10.0"') DO (
@if "%%i"=="10.0" (
@SET "VS100COMNTOOLS=%%k"
)
)
The problem is the second occurrence of %%i. The way the loop construct works is the first %% variable is the first token, the next is the second and so on. So the second %%i should be a %%j (or whatever you want) so that it points to the value that would possibly be a "10.0". You can tell the developer wanted to use i,j,k as the values because in the enclosed @SET in the if, they use %%k. Which would be the path.
So, in short, go through all these types of loops in the three files above and change the second occurrence of %%i to %%k and everything will work like it's supposed to. So it should look like this:
@for /F "tokens=1,2*" %%i in ('reg query "%1\SOFTWARE\Microsoft\VisualStudio\SxS\VS7" /v "10.0"') DO (
@if "%%j"=="10.0" (
@SET "VS100COMNTOOLS=%%k"
)
)
Hope this helps. Not sure if this applies to all versions. I only know that it does apply to VS 2010 (SP1).
In Postgres 9.4 or later, this is simplest and fastest:
SELECT c.*
FROM comments c
JOIN unnest('{1,3,2,4}'::int[]) WITH ORDINALITY t(id, ord) USING (id)
ORDER BY t.ord;
WITH ORDINALITY
was introduced with in Postgres 9.4.
No need for a subquery, we can use the set-returning function like a table directly. (A.k.a. "table-function".)
A string literal to hand in the array instead of an ARRAY constructor may be easier to implement with some clients.
For convenience (optionally), copy the column name we are joining to (id
in the example), so we can join with a short USING
clause to only get a single instance of the join column in the result.
Detailed explanation:
Emacs specific answer : As far as blogger is concerned, it allows inline css. The problem with javascript based highlighters is that you have to live with their color scheme or implement your own. But, like me, if you are a fan of your own emacs color scheme, you have a much better option available. I have hacked up the "htmlize.el" package for emacs to add the following four functions...
These functions will output copy-paste ready html (inline styled) in a new buffer in emacs, which you can directly use in your blog post. The output looks exactly same as you would see the code in emacs (including the color scheme).
Here is a link to my blog, where you can find detailed information of how to use the "blog-htmlize.el" with emacs. This does away with html-encoding the "less than" and "greater than" signs also. And as emacs is doing all the highlighting and styling, you do not have to worry about whether the js library supports the language of your snippets, nor do you have to meddle with your template code in blogger.
You can find the elisp file here (save the file as blog-htmlize.el)
Kotlin & clean, so you don't have to refactor before code review:
private fun addQueryParameters(url: String?): String? {
val uri = URI(url)
val queryParams = StringBuilder(uri.query.orEmpty())
if (queryParams.isNotEmpty())
queryParams.append('&')
queryParams.append(URLEncoder.encode("$QUERY_PARAM=$param", Xml.Encoding.UTF_8.name))
return URI(uri.scheme, uri.authority, uri.path, queryParams.toString(), uri.fragment).toString()
}
Good question, although not a trivial one to answer.
Defines how transactions relate to each other. Common options:
REQUIRED
: Code will always run in a transaction. Creates a new transaction or reuses one if available.REQUIRES_NEW
: Code will always run in a new transaction. Suspends the current transaction if one exists.Defines the data contract between transactions.
ISOLATION_READ_UNCOMMITTED
: Allows dirty reads.ISOLATION_READ_COMMITTED
: Does not allow dirty reads.ISOLATION_REPEATABLE_READ
: If a row is read twice in the same transaction, the result will always be the same. ISOLATION_SERIALIZABLE
: Performs all transactions in a sequence.The different levels have different performance characteristics in a multi-threaded application. I think if you understand the dirty reads
concept you will be able to select a good option.
Example of when a dirty read can occur:
thread 1 thread 2
| |
write(x) |
| |
| read(x)
| |
rollback |
v v
value (x) is now dirty (incorrect)
So a sane default (if such can be claimed) could be ISOLATION_READ_COMMITTED
, which only lets you read values which have already been committed by other running transactions, in combination with a propagation level of REQUIRED
. Then you can work from there if your application has other needs.
A practical example of where a new transaction will always be created when entering the provideService
routine and completed when leaving:
public class FooService {
private Repository repo1;
private Repository repo2;
@Transactional(propagation=Propagation.REQUIRES_NEW)
public void provideService() {
repo1.retrieveFoo();
repo2.retrieveFoo();
}
}
Had we instead used REQUIRED
, the transaction would remain open if the transaction was already open when entering the routine.
Note also that the result of a rollback
could be different as several executions could take part in the same transaction.
We can easily verify the behaviour with a test and see how results differ with propagation levels:
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations="classpath:/fooService.xml")
public class FooServiceTests {
private @Autowired TransactionManager transactionManager;
private @Autowired FooService fooService;
@Test
public void testProvideService() {
TransactionStatus status = transactionManager.getTransaction(new DefaultTransactionDefinition());
fooService.provideService();
transactionManager.rollback(status);
// assert repository values are unchanged ...
}
With a propagation level of
REQUIRES_NEW
: we would expect fooService.provideService()
was NOT rolled back since it created it's own sub-transaction.
REQUIRED
: we would expect everything was rolled back and the backing store was unchanged.
Add following NuGet packages to your project:
Microsoft.WindowsAPICodePack-Shell
by MicrosoftMicrosoft.WindowsAPICodePack-Core
by Microsoftusing Microsoft.WindowsAPICodePack.Shell;
using Microsoft.WindowsAPICodePack.Shell.PropertySystem;
string filePath = @"C:\temp\example.docx";
var file = ShellFile.FromFilePath(filePath);
// Read and Write:
string[] oldAuthors = file.Properties.System.Author.Value;
string oldTitle = file.Properties.System.Title.Value;
file.Properties.System.Author.Value = new string[] { "Author #1", "Author #2" };
file.Properties.System.Title.Value = "Example Title";
// Alternate way to Write:
ShellPropertyWriter propertyWriter = file.Properties.GetPropertyWriter();
propertyWriter.WriteProperty(SystemProperties.System.Author, new string[] { "Author" });
propertyWriter.Close();
Important:
The file must be a valid one, created by the specific assigned software. Every file type has specific extended file properties and not all of them are writable.
If you right-click a file on desktop and cannot edit a property, you wont be able to edit it in code too.
Example:
Author
or Title
property.So just make sure to use some try
catch
Further Topic: MSDN: Implementing Property Handlers
The issue disappeared for me when I started Fiddler. Was using it on my machine before having the issue. Probably something with Fiddler being proxy.
Try the Vici Project, Vici Parser. It includes a JSON parser / tokeniser. It works great, we use it together with the MVC framework.
More info at: http://viciproject.com/wiki/projects/parser/home
I forgot to say that it is open source so you can always take a look at the code if you like.
Go to Project> Properties> C/C++ Build> Environment. You will see three fields, choose PATH. See if the folder containing make.exe is appended to the path or not. Sometimes the change to the System PATH variable (made from My Computer> Properties> Advanced System Settings...) is NOT reflected in Eclipse. This solved the problem for me, hope it helps you too!
Downcasting transformation of objects is not possible. Only
DownCasting1 _downCasting1 = (DownCasting1)((DownCasting2)downCasting1);
is posible
class DownCasting0 {
public int qwe() {
System.out.println("DownCasting0");
return -0;
}
}
class DownCasting1 extends DownCasting0 {
public int qwe1() {
System.out.println("DownCasting1");
return -1;
}
}
class DownCasting2 extends DownCasting1 {
public int qwe2() {
System.out.println("DownCasting2");
return -2;
}
}
public class DownCasting {
public static void main(String[] args) {
try {
DownCasting0 downCasting0 = new DownCasting0();
DownCasting1 downCasting1 = new DownCasting1();
DownCasting2 downCasting2 = new DownCasting2();
DownCasting0 a1 = (DownCasting0) downCasting2;
a1.qwe(); //good
System.out.println(downCasting0 instanceof DownCasting2); //false
System.out.println(downCasting1 instanceof DownCasting2); //false
System.out.println(downCasting0 instanceof DownCasting1); //false
DownCasting2 _downCasting1= (DownCasting2)downCasting1; //good
DownCasting1 __downCasting1 = (DownCasting1)_downCasting1; //good
DownCasting2 a3 = (DownCasting2) downCasting0; // java.lang.ClassCastException
if(downCasting0 instanceof DownCasting2){ //false
DownCasting2 a2 = (DownCasting2) downCasting0;
a2.qwe(); //error
}
byte b1 = 127;
short b2 =32_767;
int b3 = 2_147_483_647;
// long _b4 = 9_223_372_036_854_775_807; //int large number max 2_147_483_647
long b4 = 9_223_372_036_854_775_807L;
// float _b5 = 3.4e+038; //double default
float b5 = 3.4e+038F; //Sufficient for storing 6 to 7 decimal digits
double b6 = 1.7e+038;
double b7 = 1.7e+038D; //Sufficient for storing 15 decimal digits
long c1 = b3;
int c2 = (int)b4;
//int 4 bytes Stores whole numbers from -2_147_483_648 to 2_147_483_647
//float 4 bytes Stores fractional numbers from 3.4e-038 to 3.4e+038. Sufficient for storing 6 to 7 decimal digits
float c3 = b3; //logic error
double c4 = b4; //logic error
} catch (Throwable e) {
e.printStackTrace();
}
}
}
You don't need to do anything, the Model Binding
will pass null
to property without any problem.
My solution was under Manage Nuget Packages for Solution... -- I had umpteen updates to do for quite a few packages.
Let me back up a half step and say that I screwed myself over because I moved the solution and projects from one folder to another... so things were already out of whack compared to where the projects thought things out to be. Everything moved over just fine, but apparently Nuget becomes confused unless you use a different approach than I did.
Back to the solution... I simply went to Manage Nuget Packages for Solution... >> Updates >> Microsoft and .NET and hit the Update All button.
Everything was back to normal and happy.
Try this:
for(String str: myList) {
if(str.trim().equals("A"))
return true;
}
return false;
You need to use str.equals
or str.equalsIgnoreCase
instead of contains
because contains
in string
works not the same as contains
in List
List<String> s = Arrays.asList("BAB", "SAB", "DAS");
s.contains("A"); // false
"BAB".contains("A"); // true
If your grep supports -R
, do:
grep -R 'string' dir/
If not, then use find
:
find dir/ -type f -exec grep -H 'string' {} +
I built this code using a number of other posts, with the following enhancements:
display: block
to the style, so spans workCSS:
.ellipsis {
white-space: nowrap;
overflow: hidden;
display: block;
}
.ellipsis.multiline {
white-space: normal;
}
jquery.ellipsis.js
(function ($) {
// this is a binary search that operates via a function
// func should return < 0 if it should search smaller values
// func should return > 0 if it should search larger values
// func should return = 0 if the exact value is found
// Note: this function handles multiple matches and will return the last match
// this returns -1 if no match is found
function binarySearch(length, func) {
var low = 0;
var high = length - 1;
var best = -1;
var mid;
while (low <= high) {
mid = ~ ~((low + high) / 2); //~~ is a fast way to convert something to an int
var result = func(mid);
if (result < 0) {
high = mid - 1;
} else if (result > 0) {
low = mid + 1;
} else {
best = mid;
low = mid + 1;
}
}
return best;
}
// setup handlers for events for show/hide
$.each(["show", "toggleClass", "addClass", "removeClass"], function () {
//get the old function, e.g. $.fn.show or $.fn.hide
var oldFn = $.fn[this];
$.fn[this] = function () {
// get the items that are currently hidden
var hidden = this.find(":hidden").add(this.filter(":hidden"));
// run the original function
var result = oldFn.apply(this, arguments);
// for all of the hidden elements that are now visible
hidden.filter(":visible").each(function () {
// trigger the show msg
$(this).triggerHandler("show");
});
return result;
};
});
// create the ellipsis function
// when addTooltip = true, add a title attribute with the original text
$.fn.ellipsis = function (addTooltip) {
return this.each(function () {
var el = $(this);
if (el.is(":visible")) {
if (el.css("overflow") === "hidden") {
var content = el.html();
var multiline = el.hasClass('multiline');
var tempElement = $(this.cloneNode(true))
.hide()
.css('position', 'absolute')
.css('overflow', 'visible')
.width(multiline ? el.width() : 'auto')
.height(multiline ? 'auto' : el.height())
;
el.after(tempElement);
var tooTallFunc = function () {
return tempElement.height() > el.height();
};
var tooWideFunc = function () {
return tempElement.width() > el.width();
};
var tooLongFunc = multiline ? tooTallFunc : tooWideFunc;
// if the element is too long...
if (tooLongFunc()) {
var tooltipText = null;
// if a tooltip was requested...
if (addTooltip) {
// trim leading/trailing whitespace
// and consolidate internal whitespace to a single space
tooltipText = $.trim(el.text()).replace(/\s\s+/g, ' ');
}
var originalContent = content;
var createContentFunc = function (i) {
content = originalContent.substr(0, i);
tempElement.html(content + "…");
};
var searchFunc = function (i) {
createContentFunc(i);
if (tooLongFunc()) {
return -1;
}
return 0;
};
var len = binarySearch(content.length - 1, searchFunc);
createContentFunc(len);
el.html(tempElement.html());
// add the tooltip if appropriate
if (tooltipText !== null) {
el.attr('title', tooltipText);
}
}
tempElement.remove();
}
}
else {
// if this isn't visible, then hook up the show event
el.one('show', function () {
$(this).ellipsis(addTooltip);
});
}
});
};
// ellipsification for items with an ellipsis
$(document).ready(function () {
$('.ellipsis').ellipsis(true);
});
} (jQuery));
There are three major types of cloud services: IaaS, PaaS, and SaaS. You’ve probably seen these abbreviations on the websites of cloud providers. Before going into details, let’s compare IaaS, PaaS, and SaaS to transportation:
On-premises IT infrastructure is like owning a car. When you buy a car, you’re responsible for its maintenance, and upgrading means buying a new car.
IaaS is like leasing a car. When you lease a car, you choose the car you want and drive it wherever you wish, but the car isn’t yours. Want an upgrade? Just lease a different car!
PaaS is like taking a taxi. You don’t drive a taxi yourself, but simply tell the driver where you need to go and relax in the back seat.
SaaS is like going by bus. Buses have assigned routes, and you share the ride with other passengers.
Use the --force
(-f
) flag on your mysql import. Rather than stopping on the offending statement, MySQL will continue and just log the errors to the console.
For example:
mysql -u userName -p -f -D dbName < script.sql
Instead of .First()
change it to .FirstOrDefault()
First I tried
lsof -wni tcp:5432 but it doesn't show any PID number.
Second I tried
Postgres -D /usr/local/var/postgres and it showed that server is listening.
So I just restarted my mac to restore all ports back and it worked for me.
Newer versions of ARC(Advaced Rest client) also provides file upload option:
Cardinality of a set is the namber of the elements in set for we have a set a > a,b,c < so ths set contain 3 elements 3 is the cardinality of that set
This is a better solution, using:
$("table tr:first-child").has('img')
You can do this with this code also.
public class WriteSDCard extends Activity {
private static final String TAG = "MEDIA";
private TextView tv;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tv = (TextView) findViewById(R.id.TextView01);
checkExternalMedia();
writeToSDFile();
readRaw();
}
/** Method to check whether external media available and writable. This is adapted from
http://developer.android.com/guide/topics/data/data-storage.html#filesExternal */
private void checkExternalMedia(){
boolean mExternalStorageAvailable = false;
boolean mExternalStorageWriteable = false;
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state)) {
// Can read and write the media
mExternalStorageAvailable = mExternalStorageWriteable = true;
} else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
// Can only read the media
mExternalStorageAvailable = true;
mExternalStorageWriteable = false;
} else {
// Can't read or write
mExternalStorageAvailable = mExternalStorageWriteable = false;
}
tv.append("\n\nExternal Media: readable="
+mExternalStorageAvailable+" writable="+mExternalStorageWriteable);
}
/** Method to write ascii text characters to file on SD card. Note that you must add a
WRITE_EXTERNAL_STORAGE permission to the manifest file or this method will throw
a FileNotFound Exception because you won't have write permission. */
private void writeToSDFile(){
// Find the root of the external storage.
// See http://developer.android.com/guide/topics/data/data- storage.html#filesExternal
File root = android.os.Environment.getExternalStorageDirectory();
tv.append("\nExternal file system root: "+root);
// See http://stackoverflow.com/questions/3551821/android-write-to-sd-card-folder
File dir = new File (root.getAbsolutePath() + "/download");
dir.mkdirs();
File file = new File(dir, "myData.txt");
try {
FileOutputStream f = new FileOutputStream(file);
PrintWriter pw = new PrintWriter(f);
pw.println("Hi , How are you");
pw.println("Hello");
pw.flush();
pw.close();
f.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
Log.i(TAG, "******* File not found. Did you" +
" add a WRITE_EXTERNAL_STORAGE permission to the manifest?");
} catch (IOException e) {
e.printStackTrace();
}
tv.append("\n\nFile written to "+file);
}
/** Method to read in a text file placed in the res/raw directory of the application. The
method reads in all lines of the file sequentially. */
private void readRaw(){
tv.append("\nData read from res/raw/textfile.txt:");
InputStream is = this.getResources().openRawResource(R.raw.textfile);
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr, 8192); // 2nd arg is buffer size
// More efficient (less readable) implementation of above is the composite expression
/*BufferedReader br = new BufferedReader(new InputStreamReader(
this.getResources().openRawResource(R.raw.textfile)), 8192);*/
try {
String test;
while (true){
test = br.readLine();
// readLine() returns null if no more lines in the file
if(test == null) break;
tv.append("\n"+" "+test);
}
isr.close();
is.close();
br.close();
} catch (IOException e) {
e.printStackTrace();
}
tv.append("\n\nThat is all");
}
}
This example shows how to use the method GetInvocationList() to retrieve delegates to all the handlers that have been added. If you are looking to see if a specific handler (function) has been added then you can use array.
public class MyClass
{
event Action MyEvent;
}
...
MyClass myClass = new MyClass();
myClass.MyEvent += SomeFunction;
...
Action[] handlers = myClass.MyEvent.GetInvocationList(); //this will be an array of 1 in this example
Console.WriteLine(handlers[0].Method.Name);//prints the name of the method
You can examine various properties on the Method property of the delegate to see if a specific function has been added.
If you are looking to see if there is just one attached, you can just test for null.
I know this is old, but I was having this same issue, found this post, and while it didn't explain exactly what was wrong, it helped me to the right answer - so hopefully my answer helps someone else who might be having a similar problem to mine.
I had an element I wanted rotated vertical, so naturally I added the filter: for IE8 and then the -ms-transform property for IE9. What I found is that having the -ms-transform property AND the filter applied to the same element causes IE9 to render the element very poorly. My solution:
If you are using the transform-origin property, add one for MS too (-ms-transform-origin: left bottom;). If you don't see your element, it could be that it's rotating on it's middle axis and thus leaving the page somehow - so double check that.
Move the filter: property for IE7&8 to a separate style sheet and use an IE conditional to insert that style sheet for browsers less than IE9. This way it doesn't affect the IE9 styles and all should work fine.
Make sure to use the correct DOCTYPE tag as well; if you have it wrong IE9 will not work properly.
from http://maven.apache.org/guides/getting-started/maven-in-five-minutes.html
package
: take the compiled code and package it in its distributable format, such as a JAR.
install
: install the package into the local repository, for use as a dependency in other projects locally
So the answer to your question is, it depends on whether you want it in installed into your local repo. Install will also run package because it's higher up in the goal phase stack.
There is no keyword for such type checks, but you can put some code in that will at least fail in an orderly fashion:
(1) If you want a function template to only accept parameters of a certain base class X, assign it to a X reference in your function. (2) If you want to accept functions but not primitives or vice versa, or you want to filter classes in other ways, call a (empty) template helper function within your function that's only defined for the classes you want to accept.
You can use (1) and (2) also in member functions of a class to force these type checks on the entire class.
You can probably put it into some smart Macro to ease your pain. :)
Dependencies.
var fs = require('fs');
var path = require('path');
Definition.
// String -> [String]
function fileList(dir) {
return fs.readdirSync(dir).reduce(function(list, file) {
var name = path.join(dir, file);
var isDir = fs.statSync(name).isDirectory();
return list.concat(isDir ? fileList(name) : [name]);
}, []);
}
Usage.
var DIR = '/usr/local/bin';
// 1. List all files in DIR
fileList(DIR);
// => ['/usr/local/bin/babel', '/usr/local/bin/bower', ...]
// 2. List all file names in DIR
fileList(DIR).map((file) => file.split(path.sep).slice(-1)[0]);
// => ['babel', 'bower', ...]
Please note that fileList
is way too optimistic. For anything serious, add some error handling.
This issue may be occurred due to improper jquery version. like 1.4 etc. where done method is not supported
Here is the solution..
my_list=[]
history=""
history_count=0
my_str="happppyyyy"
for letter in my_str:
if letter in history:
my_list.remove((history,history_count))
history=letter
history_count+=1
else:
history_count=0
history_count+=1
history=letter
my_list.append((history,history_count))
print my_list
If you use Unix system, you can solve your problem in two commands. Where the first initialize configs and the second alters file with a file to ignore.
$ git config --global core.excludesfile ~/.gitignore
$ echo '.idea' >> ~/.gitignore
As said before, you should use a class implementing the Set interface instead of List to be sure of the unicity of elements. If you have to keep the order of elements, the SortedSet interface can then be used; the TreeSet class implements that interface.
It looks like you would do something like this:
boost::shared_mutex _access;
void reader()
{
// get shared access
boost::shared_lock<boost::shared_mutex> lock(_access);
// now we have shared access
}
void writer()
{
// get upgradable access
boost::upgrade_lock<boost::shared_mutex> lock(_access);
// get exclusive access
boost::upgrade_to_unique_lock<boost::shared_mutex> uniqueLock(lock);
// now we have exclusive access
}
I have also met this issue and wasted a lot of time debugging it.
First, make sure that the path you provide is valid, i.e., there is an image in that path.
Next, you should be aware that Opencv doesn't support image paths which contain unicode characters (see ref). If your image path contains Unicode characters, you can use the following code to read the image:
import numpy as np
import cv2
# img is in BGR format if the underlying image is a color image
img = cv2.imdecode(np.fromfile(im_path, dtype=np.uint8), cv2.IMREAD_UNCHANGED)
I honestly thought that the casting method would work fine. Since it doesn't you can try stringstream. An example is below:
#include <sstream>
#include <string>
std::stringstream ss;
std::string target;
char mychar = 'a';
ss << mychar;
ss >> target;
You'll have to wait. The session that was killed was in the middle of a transaction and updated lots of records. These records have to be rollbacked and some background process is taking care of that. In the meantime you cannot modify the records that were touched.
Add
secureTextEntry={true}
or just
secureTextEntry
property in your TextInput.
Working Example:
<TextInput style={styles.input}
placeholder="Password"
placeholderTextColor="#9a73ef"
returnKeyType='go'
secureTextEntry
autoCorrect={false}
/>
Async HTTP client loopj vs. Volley
The specifics of my project are small HTTP REST requests, every 1-5 minutes.
I using an async HTTP client (1.4.1) for a long time. The performance is better than using the vanilla Apache httpClient or an HTTP URL connection. Anyway, the new version of the library is not working for me: library inter exception cut chain of callbacks.
Reading all answers motivated me to try something new. I have chosen the Volley HTTP library.
After using it for some time, even without tests, I see clearly that the response time is down to 1.5x, 2x Volley.
Maybe Retrofit is better than an async HTTP client? I need to try it. But I'm sure that Volley is not for me.
I had to solve the problem "Figure out if an IP address is local or not", and my first thought was to build a list of IPs that were local and then match against it. This is what led me to this question. However, I later realized there is a more straightfoward way to do it: Try to bind on that IP and see if it works.
_local_ip_cache = []
_nonlocal_ip_cache = []
def ip_islocal(ip):
if ip in _local_ip_cache:
return True
if ip in _nonlocal_ip_cache:
return False
s = socket.socket()
try:
try:
s.bind((ip, 0))
except socket.error, e:
if e.args[0] == errno.EADDRNOTAVAIL:
_nonlocal_ip_cache.append(ip)
return False
else:
raise
finally:
s.close()
_local_ip_cache.append(ip)
return True
I know this doesn't answer the question directly, but this should be helpful to anyone trying to solve the related question and who was following the same train of thought. This has the advantage of being a cross-platform solution (I think).
I think this solution is good:
@app.route('/contact', methods=['GET', 'POST'])
def contact():
form = ContactForm()
if form.validate_on_submit():
if form.submit.data:
pass
elif form.submit2.data:
pass
return render_template('contact.html', form=form)
Form:
class ContactForm(FlaskForm):
submit = SubmitField('Do this')
submit2 = SubmitField('Do that')
Be aware that caches do not just cache continuous memory. They have multiple lines (at least 4) so discontinous and overlapping memory can often be stored just as efficiently.
What is missing from all the above examples is measured benchmarks. There are many myths about performance. Unless you measure it you do not know. Do not complicate your code unless you have a measured improvement.
For my Raspberry Pi 3B model it was
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet manual
allow-hotplug wlan0
iface wlan0 inet manual
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
allow-hotplug wlan1
iface wlan1 inet manual
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
break is to break out of a loop like for, while, switch etc which you don't have here, you need to use return
to break the execution flow of the current function and return to the caller.
function loop() {
if (isPlaying) {
jet1.draw();
drawAllEnemies();
requestAnimFrame(loop);
if (game == 1) {
return
}
}
}
Note: This does not cover the logic behind the if condition or when to return from the method, for that we need to have more context regarding the drawAllEnemies
and requestAnimFrame
method as well as how game
value is updated
That's easy!
First, give your button an id
such as <input type="button" value="I am a button!" id="myButton" />
Then, for height, and width, use CSS code:
.myButton {
width: 100px;
height: 100px;
}
You could also do this CSS:
input[type="button"] {
width: 100px;
height: 100px;
}
But that would affect all the buttons on the Page.
Working example - JSfiddle
You have to allocate the buffer with mallock, and give the read write the pointer to it.
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
int main(){
ssize_t nrd;
int fd;
int fd1;
char* buffer = malloc(100*sizeof(char));
fd = open("bli.txt", O_RDONLY);
fd1 = open("bla.txt", O_CREAT | O_WRONLY, S_IRUSR | S_IWUSR);
while (nrd = read(fd,buffer,sizeof(buffer))) {
write(fd1,buffer,nrd);
}
close(fd);
close(fd1);
free(buffer);
return 0;
}
Make sure that the rad file exists and contains something. It's not perfect but it works.
Just for variety here is another method to do it.
>>> all([i.isnumeric() for i in '1.2'.split('.',1)])
True
>>> all([i.isnumeric() for i in '2'.split('.',1)])
True
>>> all([i.isnumeric() for i in '2.f'.split('.',1)])
False
Edit: Im sure it will not hold up to all cases of float though especially when there is an exponent. To solve that it looks like this. This will return True only val is a float and False for int but is probably less performant than regex.
>>> def isfloat(val):
... return all([ [any([i.isnumeric(), i in ['.','e']]) for i in val], len(val.split('.')) == 2] )
...
>>> isfloat('1')
False
>>> isfloat('1.2')
True
>>> isfloat('1.2e3')
True
>>> isfloat('12e3')
False
You don't have to use Javascript to do this. Using plain-old css:
div.blah {
position:absolute;
top: 0; /*[wherever you want it]*/
left:0; /*[wherever you want it]*/
}
If you feel you must use javascript, or are trying to do this dynamically Using JQuery, this affects all divs of class "blah":
var blahclass = $('.blah');
blahclass.css('position', 'absolute');
blahclass.css('top', 0); //or wherever you want it
blahclass.css('left', 0); //or wherever you want it
Alternatively, if you must use regular old-javascript you can grab by id
var domElement = document.getElementById('myElement');// don't go to to DOM every time you need it. Instead store in a variable and manipulate.
domElement.style.position = "absolute";
domElement.style.top = 0; //or whatever
domElement.style.left = 0; // or whatever
In my case I had a custom url to go to each time; though the schema of the result would remain the same.
I used the following:
var searchResults = null;
$.ajax({
url: http://myhost/context/resource,
dataType: "json",
success: function (result, textStatus, jqXHR) {
//massage results and store in searchResults
searchResults = massageData(result);
}
}).done(function() {
//Kendo grid stuff
var dataSource = new kendo.data.DataSource({ data: searchResults });
var grid = $('#doc-list-grid').data('kendoGrid');
dataSource.read();
grid.setDataSource(dataSource);
});
I think the easiest from a logical and efficiency point of view is using the queryset's exists() function, documented here:
So in your example above I would simply write:
if User.objects.filter(email = cleaned_info['username']).exists():
# at least one object satisfying query exists
else:
# no object satisfying query exists
It depends on how often you insert or read. You can increase the array by more than one if needed.
numberOfItems = ??
' ...
If numberOfItems+1 >= arr.Length Then
Array.Resize(arr, arr.Length + 10)
End If
arr(numberOfItems) = newItem
numberOfItems += 1
Also for A, you only need to get the array if needed.
Dim list As List(Of Integer)(arr) ' Do this only once, keep a reference to the list
' If you create a new List everything you add an item then this will never be fast
'...
list.Add(newItem)
arrayWasModified = True
' ...
Function GetArray()
If arrayWasModified Then
arr = list.ToArray()
End If
Return Arr
End Function
If you have the time, I suggest you convert it all to List and remove arrays.
* My code might not compile
You can also generate source code from schema using jaxb2-maven-plugin plugin:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jaxb2-maven-plugin</artifactId>
<version>2.2</version>
<executions>
<execution>
<goals>
<goal>xjc</goal>
</goals>
</execution>
</executions>
<configuration>
<sources>
<source>src/main/resources/your_schema.xsd</source>
</sources>
<xjbSources>
<xjbSource>src/main/resources/bindings.xjb</xjbSource>
</xjbSources>
<packageName>some_package</packageName>
<outputDirectory>src/main/java</outputDirectory>
<clearOutputDir>false</clearOutputDir>
<generateEpisode>false</generateEpisode>
<noGeneratedHeaderComments>true</noGeneratedHeaderComments>
</configuration>
</plugin>
When you correct the measurements - as mentioned above: Any and Exists, and adding average - we'll get following output:
Executing search Exists() 1000 times ...
Average Exists(): 35566,023
Fastest Exists() execution: 32226
Executing search Any() 1000 times ...
Average Any(): 58852,435
Fastest Any() execution: 52269 ticks
Benchmark finished. Press any key.
You can compute pairwise cosine similarity on the rows of a sparse matrix directly using sklearn. As of version 0.17 it also supports sparse output:
from sklearn.metrics.pairwise import cosine_similarity
from scipy import sparse
A = np.array([[0, 1, 0, 0, 1], [0, 0, 1, 1, 1],[1, 1, 0, 1, 0]])
A_sparse = sparse.csr_matrix(A)
similarities = cosine_similarity(A_sparse)
print('pairwise dense output:\n {}\n'.format(similarities))
#also can output sparse matrices
similarities_sparse = cosine_similarity(A_sparse,dense_output=False)
print('pairwise sparse output:\n {}\n'.format(similarities_sparse))
Results:
pairwise dense output:
[[ 1. 0.40824829 0.40824829]
[ 0.40824829 1. 0.33333333]
[ 0.40824829 0.33333333 1. ]]
pairwise sparse output:
(0, 1) 0.408248290464
(0, 2) 0.408248290464
(0, 0) 1.0
(1, 0) 0.408248290464
(1, 2) 0.333333333333
(1, 1) 1.0
(2, 1) 0.333333333333
(2, 0) 0.408248290464
(2, 2) 1.0
If you want column-wise cosine similarities simply transpose your input matrix beforehand:
A_sparse.transpose()
Why the prohibition "I don't want to use any looping"? That's the most obvious solution. When given the chance to be obvious, take it!
Note that calls like arr.Contains(...)
are still going to loop, it just won't be you who has written the loop.
Have you considered an alternate representation that's more amenable to searching?
arr
is sorted, you could use binary search (which would need to recurse or loop, but not as often as a straight linear search). Or, for less code, inside your click you place:
setTimeout(function(){
$('#DIV_ID').scrollTop(0);
}, 500);
From my limited experience, this happens for two main reasons:
The simple solution here is to use an error handler ending with Resume Next
If your lookup_value
is a variable you can enclose it with TRIM()
cellNum = wsFunc.VLookup(TRIM(currName), rngLook, 13, False)
There is extensive paramiko API documentation you can find at: http://docs.paramiko.org/en/stable/index.html
I use the following method to execute commands on a password protected client:
import paramiko
nbytes = 4096
hostname = 'hostname'
port = 22
username = 'username'
password = 'password'
command = 'ls'
client = paramiko.Transport((hostname, port))
client.connect(username=username, password=password)
stdout_data = []
stderr_data = []
session = client.open_channel(kind='session')
session.exec_command(command)
while True:
if session.recv_ready():
stdout_data.append(session.recv(nbytes))
if session.recv_stderr_ready():
stderr_data.append(session.recv_stderr(nbytes))
if session.exit_status_ready():
break
print 'exit status: ', session.recv_exit_status()
print ''.join(stdout_data)
print ''.join(stderr_data)
session.close()
client.close()
My application.properties
looked something like this
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/mydb
spring.datasource.username=root
spring.datasource.password=root
The only thing worked for me is to maven clean and then maven install.
It can be achieved using JS. Here is a 'one-line' solution using elastic.js:
$('#note').elastic();
Updated: Seems like elastic.js is not there anymore, but if you are looking for an external library, I can recommend autosize.js by Jack Moore. This is the working example:
autosize(document.getElementById("note"));
_x000D_
textarea#note {_x000D_
width:100%;_x000D_
box-sizing:border-box;_x000D_
direction:rtl;_x000D_
display:block;_x000D_
max-width:100%;_x000D_
line-height:1.5;_x000D_
padding:15px 15px 30px;_x000D_
border-radius:3px;_x000D_
border:1px solid #F7E98D;_x000D_
font:13px Tahoma, cursive;_x000D_
transition:box-shadow 0.5s ease;_x000D_
box-shadow:0 4px 6px rgba(0,0,0,0.1);_x000D_
font-smoothing:subpixel-antialiased;_x000D_
background:linear-gradient(#F9EFAF, #F7E98D);_x000D_
background:-o-linear-gradient(#F9EFAF, #F7E98D);_x000D_
background:-ms-linear-gradient(#F9EFAF, #F7E98D);_x000D_
background:-moz-linear-gradient(#F9EFAF, #F7E98D);_x000D_
background:-webkit-linear-gradient(#F9EFAF, #F7E98D);_x000D_
}
_x000D_
<script src="https://rawgit.com/jackmoore/autosize/master/dist/autosize.min.js"></script>_x000D_
<textarea id="note">Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi.</textarea>
_x000D_
Check this similar topics too:
Autosizing textarea using Prototype
in addition,if you try to use CustomActionBarTheme,make sure there is
<application android:theme="@style/CustomActionBarTheme" ... />
in AndroidManifest.xml
not
<application android:theme="@android:style/CustomActionBarTheme" ... />
i find that this works for me
db.getCollection('collectionName').findOne({"fieldName" : {$ne: null}})
Something like this could be used, and still maintaining meanings of return
(to return control signals) and echo
(to return information) and logging statements (to print debug/info messages).
v_verbose=1
v_verbose_f="" # verbose file name
FLAG_BGPID=""
e_verbose() {
if [[ $v_verbose -ge 0 ]]; then
v_verbose_f=$(tempfile)
tail -f $v_verbose_f &
FLAG_BGPID="$!"
fi
}
d_verbose() {
if [[ x"$FLAG_BGPID" != "x" ]]; then
kill $FLAG_BGPID > /dev/null
FLAG_BGPID=""
rm -f $v_verbose_f > /dev/null
fi
}
init() {
e_verbose
trap cleanup SIGINT SIGQUIT SIGKILL SIGSTOP SIGTERM SIGHUP SIGTSTP
}
cleanup() {
d_verbose
}
init
fun1() {
echo "got $1" >> $v_verbose_f
echo "got $2" >> $v_verbose_f
echo "$(( $1 + $2 ))"
return 0
}
a=$(fun1 10 20)
if [[ $? -eq 0 ]]; then
echo ">>sum: $a"
else
echo "error: $?"
fi
cleanup
In here, I'm redirecting debug messages to separate file, that is watched by tail, and if there is any changes then printing the change, trap
is used to make sure that background process always ends.
This behavior can also be achieved using redirection to /dev/stderr
, But difference can be seen at the time of piping output of one command to input of other command.
This is typically done manually by choosing the appropriate bits from the vector and then appending 0s.
For example, to shift a vector 8 bits
variable tmp : std_logic_vector(15 downto 0)
...
tmp := x"00" & tmp(15 downto 8);
Hopefully this simple answer is useful to someone
You can use a $where. Just be aware it will be fairly slow (has to execute Javascript code on every record) so combine with indexed queries if you can.
db.T.find( { $where: function() { return this.Grade1 > this.Grade2 } } );
or more compact:
db.T.find( { $where : "this.Grade1 > this.Grade2" } );
you can use $expr
as described in recent answer
Nope. C++ does not throw an exception when you do something bad, that would incur a performance hit. Things like access violations or division by zero errors are more like "machine" exceptions, rather than language-level things that you can catch.
If you need n % m
then:
int i = (n < 0) ? (m - (abs(n) % m) ) %m : (n % m);
mathematical explanation:
n = -1 * abs(n)
-> n % m = (-1 * abs(n) ) % m
-> (-1 * (abs(n) % m) ) % m
-> m - (abs(n) % m))
From the session_destroy() page in the PHP manual:
<?php
// Initialize the session.
// If you are using session_name("something"), don't forget it now!
session_start();
// Unset all of the session variables.
$_SESSION = array();
// If it's desired to kill the session, also delete the session cookie.
// Note: This will destroy the session, and not just the session data!
if (ini_get("session.use_cookies")) {
$params = session_get_cookie_params();
setcookie(session_name(), '', time() - 42000,
$params["path"], $params["domain"],
$params["secure"], $params["httponly"]
);
}
// Finally, destroy the session.
session_destroy();
?>
If you mean
new E()
then it is impossible. And I would add that it is not always correct - how do you know if E has public no-args constructor?
But you can always delegate creation to some other class that knows how to create an instance - it can be Class<E>
or your custom code like this
interface Factory<E>{
E create();
}
class IntegerFactory implements Factory<Integer>{
private static int i = 0;
Integer create() {
return i++;
}
}
I often have this problem with date fields (where comparison operators are very common).
To elaborate further on Mihai's answer, which I believe is a solid approach.
To the models you can add scopes like this:
scope :updated_at_less_than, -> (date_param) {
where(arel_table[:updated_at].lt(date_param)) }
... and then in your controller, or wherever you are using your model:
result = MyModel.updated_at_less_than('01/01/2017')
... a more complex example with joins looks like this:
result = MyParentModel.joins(:my_model).
merge(MyModel.updated_at_less_than('01/01/2017'))
A huge advantage of this approach is (a) it lets you compose your queries from different scopes and (b) avoids alias collisions when you join to the same table twice since arel_table will handle that part of the query generation.
foreach ($array as $value)
{
if(!isset($counter))
{
$counter = 0;
}
$counter++;
}
//Sorry if the code isn't shown correctly. :P
//I like this version more, because the counter variable is IN the foreach, and not above.
You can also include this HTML in ReactDOM like this:
var thisIsMyCopy = (<p>copy copy copy <strong>strong copy</strong></p>);
ReactDOM.render(<div className="content">{thisIsMyCopy}</div>, document.getElementById('app'));
Here are two links link and link2 from React documentation which could be helpful.
You need to send this
object only instead of this.value
while calling onchange
<input type='file' id="upload" onchange="readURL(this)" />
because you are using input
variable as this
in your function, like at line
var url = input.value;// reading value property of input element
EDIT - Try using jQuery like below --
remove onchange from input field :
<input type='file' id="upload" >
Bind onchange
event to input field :
$(function(){
$('#upload').change(function(){
var input = this;
var url = $(this).val();
var ext = url.substring(url.lastIndexOf('.') + 1).toLowerCase();
if (input.files && input.files[0]&& (ext == "gif" || ext == "png" || ext == "jpeg" || ext == "jpg"))
{
var reader = new FileReader();
reader.onload = function (e) {
$('#img').attr('src', e.target.result);
}
reader.readAsDataURL(input.files[0]);
}
else
{
$('#img').attr('src', '/assets/no_preview.png');
}
});
});
I modified @LcSalazar's answer a bit... it's still not perfect because the background of the default buttons can still be seen in both Firefox, Chrome & Opera (not tested in Safari); but clicking on the arrows still works
Notes:
pointer-events: none;
allows you to click through the overlapping button, but then you can not style the button while hovered..number-wrapper {_x000D_
position: relative;_x000D_
}_x000D_
_x000D_
.number-wrapper:after,_x000D_
.number-wrapper:before {_x000D_
position: absolute;_x000D_
right: 5px;_x000D_
width: 1.6em;_x000D_
height: .9em;_x000D_
font-size: 10px;_x000D_
pointer-events: none;_x000D_
background: #fff;_x000D_
}_x000D_
_x000D_
.number-wrapper:after {_x000D_
color: blue;_x000D_
content: "\25B2";_x000D_
margin-top: 1px;_x000D_
}_x000D_
_x000D_
.number-wrapper:before {_x000D_
color: red;_x000D_
content: "\25BC";_x000D_
margin-bottom: 5px;_x000D_
bottom: -.5em;_x000D_
}
_x000D_
<span class='number-wrapper'>_x000D_
<input type="number" />_x000D_
</span>
_x000D_
It is easy to add divider to layout, we don't need a separate view.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:divider="?android:listDivider"
android:dividerPadding="2.5dp"
android:orientation="horizontal"
android:showDividers="middle"
android:weightSum="2" ></LinearLayout>
Above code make vertical divider for LinearLayout
You can build your HttpContent
using the combination of JObject
to avoid and JProperty
and then call ToString()
on it when building the StringContent
:
/*{
"agent": {
"name": "Agent Name",
"version": 1
},
"username": "Username",
"password": "User Password",
"token": "xxxxxx"
}*/
JObject payLoad = new JObject(
new JProperty("agent",
new JObject(
new JProperty("name", "Agent Name"),
new JProperty("version", 1)
),
new JProperty("username", "Username"),
new JProperty("password", "User Password"),
new JProperty("token", "xxxxxx")
)
);
using (HttpClient client = new HttpClient())
{
var httpContent = new StringContent(payLoad.ToString(), Encoding.UTF8, "application/json");
using (HttpResponseMessage response = await client.PostAsync(requestUri, httpContent))
{
response.EnsureSuccessStatusCode();
string responseBody = await response.Content.ReadAsStringAsync();
return JObject.Parse(responseBody);
}
}
Never use escape()
. It's nothing to do with HTML-encoding. It's more like URL-encoding, but it's not even properly that. It's a bizarre non-standard encoding available only in JavaScript.
If you want an HTML encoder, you'll have to write it yourself as JavaScript doesn't give you one. For example:
function encodeHTML(s) {
return s.replace(/&/g, '&').replace(/</g, '<').replace(/"/g, '"');
}
However whilst this is enough to put your user_id
in places like the input value
, it's not enough for id
because IDs can only use a limited selection of characters. (And %
isn't among them, so escape()
or even encodeURIComponent()
is no good.)
You could invent your own encoding scheme to put any characters in an ID, for example:
function encodeID(s) {
if (s==='') return '_';
return s.replace(/[^a-zA-Z0-9.-]/g, function(match) {
return '_'+match[0].charCodeAt(0).toString(16)+'_';
});
}
But you've still got a problem if the same user_id
occurs twice. And to be honest, the whole thing with throwing around HTML strings is usually a bad idea. Use DOM methods instead, and retain JavaScript references to each element, so you don't have to keep calling getElementById
, or worrying about how arbitrary strings are inserted into IDs.
eg.:
function addChut(user_id) {
var log= document.createElement('div');
log.className= 'log';
var textarea= document.createElement('textarea');
var input= document.createElement('input');
input.value= user_id;
input.readonly= True;
var button= document.createElement('input');
button.type= 'button';
button.value= 'Message';
var chut= document.createElement('div');
chut.className= 'chut';
chut.appendChild(log);
chut.appendChild(textarea);
chut.appendChild(input);
chut.appendChild(button);
document.getElementById('chuts').appendChild(chut);
button.onclick= function() {
alert('Send '+textarea.value+' to '+user_id);
};
return chut;
}
You could also use a convenience function or JS framework to cut down on the lengthiness of the create-set-appends calls there.
ETA:
I'm using jQuery at the moment as a framework
OK, then consider the jQuery 1.4 creation shortcuts, eg.:
var log= $('<div>', {className: 'log'});
var input= $('<input>', {readOnly: true, val: user_id});
...
The problem I have right now is that I use JSONP to add elements and events to a page, and so I can not know whether the elements already exist or not before showing a message.
You can keep a lookup of user_id
to element nodes (or wrapper objects) in JavaScript, to save putting that information in the DOM itself, where the characters that can go in an id
are restricted.
var chut_lookup= {};
...
function getChut(user_id) {
var key= '_map_'+user_id;
if (key in chut_lookup)
return chut_lookup[key];
return chut_lookup[key]= addChut(user_id);
}
(The _map_
prefix is because JavaScript objects don't quite work as a mapping of arbitrary strings. The empty string and, in IE, some Object
member names, confuse it.)
Those are for passing arguments to your program, for example from command line, when a program is invoked
$ gcc mysort.c -o mysort
$ mysort 2 8 9 1 4 5
Above, the program mysort
is executed with some command line parameters. Inside main( int argc, char * argv[])
, this would result in
Argument Count, argc = 7
since there are 7 arguments (counting the program), and
Argument Vector, argv[] = { "mysort", "2", "8", "9", "1", "4", "5" };
Following is a complete example.
$ cat mysort.c
#include <stdio.h>
int main( int argc, char * argv [] ) {
printf( "argc = %d\n", argc );
for( int i = 0; i < argc; ++i ) {
printf( "argv[ %d ] = %s\n", i, argv[ i ] );
}
}
$ gcc mysort.c -o mysort
$ ./mysort 2 8 9 1 4 5
argc = 7
argv[ 0 ] = ./mysort
argv[ 1 ] = 2
argv[ 2 ] = 8
argv[ 3 ] = 9
argv[ 4 ] = 1
argv[ 5 ] = 4
argv[ 6 ] = 5
[The char
strings "2", "8" etc. can be converted to number using some character to number conversion function, e.g. atol()
(link)]
Do this:
<ToggleButton
android:id="@+id/toggle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/check" <!--check.xml-->
android:layout_margin="10dp"
android:textOn=""
android:textOff=""
android:focusable="false"
android:focusableInTouchMode="false"
android:layout_centerVertical="true"/>
create check.xml in drawable folder
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- When selected, use grey -->
<item android:drawable="@drawable/selected_image"
android:state_checked="true" />
<!-- When not selected, use white-->
<item android:drawable="@drawable/unselected_image"
android:state_checked="false"/>
</selector>
You want the setLength() method in the class RandomAccessFile.
I'm assuming you have fromPath (an absolute path for a folder), and toPath (an absolute path for a folder/file), and your're looking for a path that with represent the file/folder in toPath as a relative path from fromPath (your current working directory is fromPath) then something like this should work:
public static String getRelativePath(String fromPath, String toPath) {
// This weirdness is because a separator of '/' messes with String.split()
String regexCharacter = File.separator;
if (File.separatorChar == '\\') {
regexCharacter = "\\\\";
}
String[] fromSplit = fromPath.split(regexCharacter);
String[] toSplit = toPath.split(regexCharacter);
// Find the common path
int common = 0;
while (fromSplit[common].equals(toSplit[common])) {
common++;
}
StringBuffer result = new StringBuffer(".");
// Work your way up the FROM path to common ground
for (int i = common; i < fromSplit.length; i++) {
result.append(File.separatorChar).append("..");
}
// Work your way down the TO path
for (int i = common; i < toSplit.length; i++) {
result.append(File.separatorChar).append(toSplit[i]);
}
return result.toString();
}
Put simply, __name__
is a variable defined for each script that defines whether the script is being run as the main module or it is being run as an imported module.
So if we have two scripts;
#script1.py
print "Script 1's name: {}".format(__name__)
and
#script2.py
import script1
print "Script 2's name: {}".format(__name__)
The output from executing script1 is
Script 1's name: __main__
And the output from executing script2 is:
Script1's name is script1
Script 2's name: __main__
As you can see, __name__
tells us which code is the 'main' module.
This is great, because you can just write code and not have to worry about structural issues like in C/C++, where, if a file does not implement a 'main' function then it cannot be compiled as an executable and if it does, it cannot then be used as a library.
Say you write a Python script that does something great and you implement a boatload of functions that are useful for other purposes. If I want to use them I can just import your script and use them without executing your program (given that your code only executes within the if __name__ == "__main__":
context). Whereas in C/C++ you would have to portion out those pieces into a separate module that then includes the file. Picture the situation below;
The arrows are import links. For three modules each trying to include the previous modules code there are six files (nine, counting the implementation files) and five links. This makes it difficult to include other code into a C project unless it is compiled specifically as a library. Now picture it for Python:
You write a module, and if someone wants to use your code they just import it and the __name__
variable can help to separate the executable portion of the program from the library part.
here is Iframe in view:
<iframe class="img-responsive" id="ifmReport" width="1090" height="1200" >
</iframe>
Load it in script:
$('#ifmReport').attr('src', '/ReportViewer/ReportViewer.aspx');
I have not tested , but what the main idea is: put semicolon on each query.
SqlConnection connection = new SqlConnection();
SqlCommand command = new SqlCommand();
connection.ConnectionString = connectionString; // put your connection string
command.CommandText = @"
update table
set somecol = somevalue;
insert into someTable values(1,'test');";
command.CommandType = CommandType.Text;
command.Connection = connection;
try
{
connection.Open();
}
finally
{
command.Dispose();
connection.Dispose();
}
Update: you can follow Is it possible to have multiple SQL instructions in a ADO.NET Command.CommandText property? too
I tried all the answers above, but none of them worked for me, so I was forced to try something else. I just removed the whole package with settings org.eclipse.Java and it worked fine, starts again like before and even keeps all settings like color themes and others. Worked like charm.
On Linux or Mac go to /home/{your_user_name}/.var/app and run the following command:
rm -r org.eclipse.Java
On Windows just find the same directory and move it to Trash.
After this is done, the settings and the errors are deleted, so Eclipse will start and re-create them with the proper settings.
When Eclipse starts it will ask for the workspace directory. When specified, everything works like before.
JAVA_HOME
and JRE_HOME
are not used by Java itself. Some third-party programs (for example Apache Tomcat) expect one of these environment variables to be set to the installation directory of the JDK
or JRE
. If you are not using software that requires them, you do not need to set JAVA_HOME
and JRE_HOME
.
PATH
is an environment variable used by the operating system (Windows, Mac OS X, Linux) where it will look for native executable programs to run. You should add the bin
subdirectory of your JDK
installation directory to the PATH
, so that you can use the javac
and java
commands and other JDK
tools in a command prompt window. Courtesy: coderanch
Yes, given an array, array
, and a value, item
to search for, you can use np.where
as:
itemindex = numpy.where(array==item)
The result is a tuple with first all the row indices, then all the column indices.
For example, if an array is two dimensions and it contained your item at two locations then
array[itemindex[0][0]][itemindex[1][0]]
would be equal to your item and so would be:
array[itemindex[0][1]][itemindex[1][1]]
for (int x = 0; x < spRaca.getAdapter().getCount(); x++) {
if (spRaca.getItemIdAtPosition(x) == reprodutor.getId()) {
spRaca.setSelection(x);
break;
}
}
For Laravel 4 & 5:
<link rel="stylesheet" href="{{ URL::asset('assets/css/bootstrap.min.css') }}">
URL::asset
will link to your project/public/
folder, so chuck your scripts in there.
.blade.php
extension.
delete
operator is used to remove
an object property
.
delete
operator does not returns the new object, only returns a boolean
: true or false.
In the other hand, after interpreter executes var updatedjsonobj = delete myjsonobj['otherIndustry'];
, updatedjsonobj
variable will store a boolean
value.
How to remove Json object specific key and its value ?
You just need to know the property name in order to delete it from the object's properties.
delete myjsonobj['otherIndustry'];
let myjsonobj = {
"employeeid": "160915848",
"firstName": "tet",
"lastName": "test",
"email": "[email protected]",
"country": "Brasil",
"currentIndustry": "aaaaaaaaaaaaa",
"otherIndustry": "aaaaaaaaaaaaa",
"currentOrganization": "test",
"salary": "1234567"
}
delete myjsonobj['otherIndustry'];
console.log(myjsonobj);
_x000D_
If you want to remove a key
when you know the value you can use Object.keys
function which returns an array of a given object's own enumerable properties.
let value="test";
let myjsonobj = {
"employeeid": "160915848",
"firstName": "tet",
"lastName": "test",
"email": "[email protected]",
"country": "Brasil",
"currentIndustry": "aaaaaaaaaaaaa",
"otherIndustry": "aaaaaaaaaaaaa",
"currentOrganization": "test",
"salary": "1234567"
}
Object.keys(myjsonobj).forEach(function(key){
if (myjsonobj[key] === value) {
delete myjsonobj[key];
}
});
console.log(myjsonobj);
_x000D_
This trick worked for me in Eclipse Luna (4.4.2): For a jar file I am using (htsjdk), I packed the source in a separate jar file (named htsjdk-2.0.1-src.jar; I could do this since htsjdk is open source) and stored it in the lib-src folder of my project. In my own Java source I selected an element I was using from the jar and hit F3 (Open declaration). Eclipse opened the class file and showed the button "Attach source". I clicked the button and pointed to the src jar file I had just put into the lib-src folder. Now I get the Javadoc when hovering over anything I’m using from the jar.
If anyone is using WordPress, you can use something like:
if (jQuery('.dropdown-menu li').hasClass('active')) {
jQuery('.current-menu-parent').addClass('current-menu-item');
}
A couple other options:
Use the comma operator to create an array:
$cars = ,"bmw"
$cars.GetType().FullName
# Outputs: System.Object[]
Use array subexpression syntax:
$cars = @("bmw")
$cars.GetType().FullName
# Outputs: System.Object[]
If you don't want an object array you can downcast to the type you want e.g. a string array.
[string[]] $cars = ,"bmw"
[string[]] $cars = @("bmw")
Depending on your browser, you may access to your local files. But this may not work for all the users of your app.
To do this, you can try the instructions from here: http://www.html5rocks.com/en/tutorials/file/dndfiles/
Once your file is loaded, you can retrieve the data using:
var jsonData = JSON.parse(theTextContentOfMyFile);
In my case, the problem was that the new library (gradle dependency) that I had added was relying on some other dependencies and two of those underlying dependencies were conflicting/clashing with some dependencies of other libraries/dependencies in my build script. Specifically, I added Apache Commons Validator
(for email validation), and two of its dependencies (Apache Commons Logging
and Apache Commons Collections
) were conflicting with those used by Robolectric (because different versions of same libraries were present in my build path). So I excluded those conflicting versions of dependencies (modules
) when adding the new dependency (the Validator
):
compile ('commons-validator:commons-validator:1.4.1') {
exclude module: 'commons-logging'
exclude module: 'commons-collections'
}
You can see the dependencies of your gradle module(s) (you might have only one module in your project) using the following gradle command (I use the gradle wrapper that gets created for you if you have created your project in Android Studio/Intellij Idea). Run this command in your project's root directory:
./gradlew :YOUR-MODULE-NAME:dependencies
After adding those exclude
directives and retrying to run, I got a duplicate file
error for NOTICE.txt
that is used by some apache commons libraries like Logging and Collections. I had to exclude that text file when packaging. In my build.gradle, I added:
packagingOptions {
exclude 'META-INF/NOTICE'
exclude 'META-INF/notice.txt'
exclude 'META-INF/NOTICE.txt'
}
It turned out that the new library (the Validator
) can work with slightly older versions of its dependencies/modules (which are already imported into my build path by another library (Robolectric)). This was the case with this specific library, but other libraries might be using the latest API of the underlying dependencies (in which case you have to try to see if the other libraries that rely on the conflicting module/dependency are able to work with the newer version (by excluding the older version of the module/dependecy under those libraries's entries)).
Everyone is right: stick with POST for non-idempotent requests.
What about using both an URI query string and request content? Well it's valid HTTP (see note 1), so why not?!
It is also perfectly logical: URLs, including their query string part, are for locating resources. Whereas HTTP method verbs (POST - and its optional request content) are for specifying actions, or what to do with resources. Those should be orthogonal concerns. (But, they are not beautifully orthogonal concerns for the special case of ContentType=application/x-www-form-urlencoded, see note 2 below.)
Note 1: HTTP specification (1.1) does not state that query parameters and content are mutually exclusive for a HTTP server that accepts POST or PUT requests. So any server is free to accept both. I.e. if you write the server there's nothing to stop you choosing to accept both (except maybe an inflexible framework). Generally, the server can interpret query strings according to whatever rules it wants. It can even interpret them with conditional logic that refers to other headers like Content-Type too, which leads to Note 2:
Note 2: if a web browser is the primary way people are accessing your web application, and application/x-www-form-urlencoded is the Content-Type they are posting, then you should follow the rules for that Content-Type. And the rules for application/x-www-form-urlencoded are much more specific (and frankly, unusual): in this case you must interpret the URI as a set of parameters, and not a resource location. [This is the same point of usefulness Powerlord raised; that it may be hard to use web forms to POST content to your server. Just explained a little differently.]
Note 3: what are query strings originally for? RFC 3986 defines HTTP query strings as an URI part that works as a non-hierarchical way of locating a resource.
In case readers asking this question wish to ask what is good RESTful architecture: the RESTful architecture pattern doesn't require URI schemes to work a specific way. RESTful architecture concerns itself with other properties of the system, like cacheability of resources, the design of the resources themselves (their behavior, capabilities, and representations), and whether idempotence is satisfied. Or in other words, achieving a design which is highly compatible with HTTP protocol and its set of HTTP method verbs. :-) (In other words, RESTful architecture is not very presciptive with how the resources are located.)
Final note: sometimes query parameters get used for yet other things, which are neither locating resources nor encoding content. Ever seen a query parameter like 'PUT=true' or 'POST=true'? These are workarounds for browsers that don't allow you to use PUT and POST methods. While such parameters are seen as part of the URL query string (on the wire), I argue that they are not part of the URL's query in spirit.
I think you should call the super.draw()
method first before you do anything in surfaceView's draw method.
I also faced same issue and i just executed below command.
ng update @angular/cli --migrate-only --from=1.6.4
It simply delete angular-cli.json
and create angular.json
. You can find this in logs.
Once you start execution. You will be able to see below logs in your terminal.
Updating karma configuration
Updating configuration
Removing old config file (.angular-cli.json)
Writing config file (angular.json)
Some configuration options have been changed, please make sure to update any
npm scripts which you may have modified.
DELETE .angular-cli.json
CREATE angular.json (3599 bytes)
UPDATE karma.conf.js (962 bytes)
UPDATE src/tsconfig.spec.json (324 bytes)
UPDATE package.json (1405 bytes)
UPDATE tsconfig.json (407 bytes)
UPDATE tslint.json (3026 bytes)
Code which disable chrome extensions for ones, who uses DesiredCapabilities to set browser flags :
desired_capabilities['chromeOptions'] = {
"args": ["--disable-extensions"],
"extensions": []
}
webdriver.Chrome(desired_capabilities=desired_capabilities)
Maybe something like this:
if "%~s0"=="%~s1" ( cd %~sp1 & shift ) else (
echo CreateObject^("Shell.Application"^).ShellExecute "%~s0","%~0 %*","","runas",1 >"%tmp%%~n0.vbs" & "%tmp%%~n0.vbs" & del /q "%tmp%%~n0.vbs" & goto :eof
)
There's actually a section in the OSTEP online textbook for an undergraduate course in operating systems which discusses exactly your question.
The relevant section is "Forgetting To Free Memory" in the Memory API chapter on page 6 which gives the following explanation:
In some cases, it may seem like not calling free() is reasonable. For example, your program is short-lived, and will soon exit; in this case, when the process dies, the OS will clean up all of its allocated pages and thus no memory leak will take place per se. While this certainly “works” (see the aside on page 7), it is probably a bad habit to develop, so be wary of choosing such a strategy
This excerpt is in the context of introducing the concept of virtual memory. Basically at this point in the book, the authors explain that one of the goals of an operating system is to "virtualize memory," that is, to let every program believe that it has access to a very large memory address space.
Behind the scenes, the operating system will translate "virtual addresses" the user sees to actual addresses pointing to physical memory.
However, sharing resources such as physical memory requires the operating system to keep track of what processes are using it. So if a process terminates, then it is within the capabilities and the design goals of the operating system to reclaim the process's memory so that it can redistribute and share the memory with other processes.
EDIT: The aside mentioned in the excerpt is copied below.
ASIDE: WHY NO MEMORY IS LEAKED ONCE YOUR PROCESS EXITS
When you write a short-lived program, you might allocate some space using
malloc()
. The program runs and is about to complete: is there need to callfree()
a bunch of times just before exiting? While it seems wrong not to, no memory will be "lost" in any real sense. The reason is simple: there are really two levels of memory management in the system. The first level of memory management is performed by the OS, which hands out memory to processes when they run, and takes it back when processes exit (or otherwise die). The second level of management is within each process, for example within the heap when you callmalloc()
andfree()
. Even if you fail to callfree()
(and thus leak memory in the heap), the operating system will reclaim all the memory of the process (including those pages for code, stack, and, as relevant here, heap) when the program is finished running. No matter what the state of your heap in your address space, the OS takes back all of those pages when the process dies, thus ensuring that no memory is lost despite the fact that you didn’t free it.Thus, for short-lived programs, leaking memory often does not cause any operational problems (though it may be considered poor form). When you write a long-running server (such as a web server or database management system, which never exit), leaked memory is a much bigger issue, and will eventually lead to a crash when the application runs out of memory. And of course, leaking memory is an even larger issue inside one particular program: the operating system itself. Showing us once again: those who write the kernel code have the toughest job of all...
from Page 7 of Memory API chapter of
Operating Systems: Three Easy Pieces
Remzi H. Arpaci-Dusseau and Andrea C. Arpaci-Dusseau Arpaci-Dusseau Books March, 2015 (Version 0.90)
Following Glens idea, here it goes another possibility. It would allow you to scroll inside the div, but would prevent the body to scroll with it, when the div scroll ends. However, it seems to accumulate too many preventDefault if you scroll too much, and then it creates a lag if you want to scroll up. Does anybody have a suggestion to fix that?
$(".scrollInsideThisDiv").bind("mouseover",function(){
var bodyTop = document.body.scrollTop;
$('body').on({
'mousewheel': function(e) {
if (document.body.scrollTop == bodyTop) return;
e.preventDefault();
e.stopPropagation();
}
});
});
$(".scrollInsideThisDiv").bind("mouseleave",function(){
$('body').unbind("mousewheel");
});
Here is a code example with an initialized small collection for testing:
class Program
{
static void Main(string[] args)
{
List<Order> orders = new List<Order>
{
new Order
{
OrderID = "orderID1",
OrderLines = new List<OrderLine>
{
new OrderLine
{
ProductSKU = "SKU1",
Quantity = 1
},
new OrderLine
{
ProductSKU = "SKU2",
Quantity = 2
},
new OrderLine
{
ProductSKU = "SKU3",
Quantity = 3
}
}
},
new Order
{
OrderID = "orderID2",
OrderLines = new List<OrderLine>
{
new OrderLine
{
ProductSKU = "SKU4",
Quantity = 4
},
new OrderLine
{
ProductSKU = "SKU5",
Quantity = 5
}
}
}
};
//required result is the list of all SKUs in orders
List<string> allSKUs = new List<string>();
//With Select case 2 foreach loops are required
var flattenedOrdersLinesSelectCase = orders.Select(o => o.OrderLines);
foreach (var flattenedOrderLine in flattenedOrdersLinesSelectCase)
{
foreach (OrderLine orderLine in flattenedOrderLine)
{
allSKUs.Add(orderLine.ProductSKU);
}
}
//With SelectMany case only one foreach loop is required
allSKUs = new List<string>();
var flattenedOrdersLinesSelectManyCase = orders.SelectMany(o => o.OrderLines);
foreach (var flattenedOrderLine in flattenedOrdersLinesSelectManyCase)
{
allSKUs.Add(flattenedOrderLine.ProductSKU);
}
//If the required result is flattened list which has OrderID, ProductSKU and Quantity,
//SelectMany with selector is very helpful to get the required result
//and allows avoiding own For loops what according to my experience do code faster when
// hundreds of thousands of data rows must be operated
List<OrderLineForReport> ordersLinesForReport = (List<OrderLineForReport>)orders.SelectMany(o => o.OrderLines,
(o, ol) => new OrderLineForReport
{
OrderID = o.OrderID,
ProductSKU = ol.ProductSKU,
Quantity = ol.Quantity
}).ToList();
}
}
class Order
{
public string OrderID { get; set; }
public List<OrderLine> OrderLines { get; set; }
}
class OrderLine
{
public string ProductSKU { get; set; }
public int Quantity { get; set; }
}
class OrderLineForReport
{
public string OrderID { get; set; }
public string ProductSKU { get; set; }
public int Quantity { get; set; }
}
You could write an extension method (for what it's worth):
public static string EmptyNull(this string str)
{
return str ?? "";
}
Now this works safely:
string str = null;
string upper = str.EmptyNull().ToUpper();
My Working code with fixes:
import random
import math
print "Welcome to Sam's Math Test"
num1= random.randint(1, 10)
num2= random.randint(1, 10)
num3= random.randint(1, 10)
list=[num1, num2, num3]
maxNum= max(list)
minNum= min(list)
sqrtOne= math.sqrt(num1)
correct= False
while(correct == False):
guess1= input("Which number is the highest? "+ str(list) + ": ")
if maxNum == guess1:
print("Correct!")
correct = True
else:
print("Incorrect, try again")
correct= False
while(correct == False):
guess2= input("Which number is the lowest? " + str(list) +": ")
if minNum == guess2:
print("Correct!")
correct = True
else:
print("Incorrect, try again")
correct= False
while(correct == False):
guess3= raw_input("Is the square root of " + str(num1) + " greater than or equal to 2? (y/n): ")
if sqrtOne >= 2.0 and str(guess3) == "y":
print("Correct!")
correct = True
elif sqrtOne < 2.0 and str(guess3) == "n":
print("Correct!")
correct = True
else:
print("Incorrect, try again")
print("Thanks for playing!")
First of all, from __future__ import print_function
needs to be the first line of code in your script (aside from some exceptions mentioned below). Second of all, as other answers have said, you have to use print
as a function now. That's the whole point of from __future__ import print_function
; to bring the print
function from Python 3 into Python 2.6+.
from __future__ import print_function
import sys, os, time
for x in range(0,10):
print(x, sep=' ', end='') # No need for sep here, but okay :)
time.sleep(1)
__future__
statements need to be near the top of the file because they change fundamental things about the language, and so the compiler needs to know about them from the beginning. From the documentation:
A future statement is recognized and treated specially at compile time: Changes to the semantics of core constructs are often implemented by generating different code. It may even be the case that a new feature introduces new incompatible syntax (such as a new reserved word), in which case the compiler may need to parse the module differently. Such decisions cannot be pushed off until runtime.
The documentation also mentions that the only things that can precede a __future__
statement are the module docstring, comments, blank lines, and other future statements.
I just created a simple jQuery plugin for that. Try it ;)
This should work...
var displayDate = new Date().toLocaleDateString();
alert(displayDate);
But I suspect you are trying it on something else, for example:
var displayDate = Date.now.toLocaleDateString(); // No!
alert(displayDate);
It might be helpful to know that printf does padding for you, using %-10s as the format string will pad the input right in a field 10 characters long
printf("|%-10s|", "Hello");
will output
|Hello |
In this case the - symbol means "Left align", the 10 means "Ten characters in field" and the s means you are aligning a string.
Printf style formatting is available in many languages and has plenty of references on the web. Here is one of many pages explaining the formatting flags. As usual WikiPedia's printf page is of help too (mostly a history lesson of how widely printf has spread).
You normally define your connection strings in Web.config. After generating the edmx the connection string will get stored in the App.Config. If you want to change the connection string go to the app.config and remove all the connection strings. Now go to the edmx, right click on the designer surface, select Update model from database, choose the connection string from the dropdown, Click next, Add or Refresh (select what you want) and finish.
In the output window it will show something like this,
Generated model file: UpostDataModel.edmx. Loading metadata from the database took 00:00:00.4258157. Generating the model took 00:00:01.5623765. Added the connection string to the App.Config file.
The solution is quite simple ... you're reading getchar() which gives you the first character in the input buffer, and scanf just parsed it (really don't know why) to an integer, if you just forget the getchar for a second, it will read the full buffer until a newline char.
printf("> ");
int x;
scanf("%d", &x);
printf("got the number: %d", x);
> [prompt expecting input, lets write:] 1234 [Enter]
got the number: 1234
You could call std::terminate()
from any thread and the thread you're referring to will forcefully end.
You could arrange for ~thread()
to be executed on the object of the target thread, without a intervening join()
nor detach()
on that object. This will have the same effect as option 1.
You could design an exception which has a destructor which throws an exception. And then arrange for the target thread to throw this exception when it is to be forcefully terminated. The tricky part on this one is getting the target thread to throw this exception.
Options 1 and 2 don't leak intra-process resources, but they terminate every thread.
Option 3 will probably leak resources, but is partially cooperative in that the target thread has to agree to throw the exception.
There is no portable way in C++11 (that I'm aware of) to non-cooperatively kill a single thread in a multi-thread program (i.e. without killing all threads). There was no motivation to design such a feature.
A std::thread
may have this member function:
native_handle_type native_handle();
You might be able to use this to call an OS-dependent function to do what you want. For example on Apple's OS's, this function exists and native_handle_type
is a pthread_t
. If you are successful, you are likely to leak resources.
The best solution is to add to your apache .htaccess
file the following line after RewriteEngine On
RewriteRule ^sitemap\.xml$ sitemap.php [L]
and then simply having a file sitemap.php
in your root folder that would be normally accessible via http://www.yoursite.com/sitemap.xml
, the default URL where all search engines will firstly search.
The file sitemap.php
shall start with
<?php
//Saturday, 11 January 2020 @kevin
header('Content-type: text/xml');
echo '<?xml version="1.0" encoding="UTF-8"?>';
?>
<urlset
xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">
<url>
<loc>https://www.yoursite.com/</loc>
<lastmod>2020-01-08T13:06:14+00:00</lastmod>
<priority>1.00</priority>
</url>
</urlset>
it works :)
HTTP/2 supports queries multiplexing, headers compression, priority and more intelligent packet streaming management. This results in reduced latency and accelerates content download on modern web pages.
The best way is probably trying to open it, using just opendir()
for instance.
Note that it's always best to try to use a filesystem resource, and handling any errors occuring because it doesn't exist, rather than just checking and then later trying. There is an obvious race condition in the latter approach.
I didn't want to put all my projects under one Git repository, nor did I want to go in and run this code for every single project, so I made a Bash script that will automate the process. You can use it on one or multiple directories - so it can do the code in this post for you or it can do it on multiple projects at once.
#!/bin/sh
# Script by Eli Delventhal
# Creates Git projects for file folders by making the origin Dropbox. You will need to install Dropbox for this to work.
# Not enough parameters, show help.
if [ $# -lt 1 ] ; then
cat<<HELP
projects_to_git.sh -- Takes a project folder and creates a Git repository for it on Dropbox
USAGE:
./projects_to_git.sh file1 file2 ..
EXAMPLES:
./projects_to_git.sh path/to/MyProjectDir
Creates a git project called MyProjectDir on Dropbox
./projects_to_git.sh path/to/workspace/*
Creates a git project on Dropbox for every folder contained within the workspace directory, where the project name matches the folder name
HELP
exit 0
fi
# We have enough parameters, so let's actually do this thing.
START_DIR=$(pwd)
# Make sure we have a connection to Dropbox
cd ~
if [ -s 'Dropbox' ] ; then
echo "Found Dropbox directory."
cd Dropbox
if [ -s 'git' ] ; then
echo " Dropbox Git directory found."
else
echo " Dropbox Git directory created."
mkdir git
fi
else
echo "You do not have a Dropbox folder at ~/Dropbox! Install Dropbox. Aborting..."
exit 0
fi
# Process all directories matching the passed parameters.
echo "Starting processing for all files..."
for PROJ in $*
do
if [ -d $PROJ ] ; then
PROJNAME=$(basename $PROJ)
echo " Processing $PROJNAME..."
# Enable Git with this project.
cd $PROJ
if [ -s '.git' ] ; then
echo " $PROJNAME is already a Git repository, ignoring..."
else
echo " Initializing Git for $PROJNAME..."
git init -q
git add .
git commit -m "Initial creation of project." -q
# Make the origin Dropbox.
cd ~/Dropbox/git
if [ -s $PROJNAME ] ; then
echo " Warning! $PROJNAME already exists in Git! Ignoring..."
else
echo " Putting $PROJNAME project on Dropbox..."
mkdir $PROJNAME
cd $PROJNAME
git init -q --bare
fi
# Link the project to the origin
echo " Copying local $PROJNAME to Dropbox..."
cd $PROJ
git remote add origin "~/Dropbox/git/$PROJNAME"
git push -q origin master
git branch --set-upstream master origin/master
fi
fi
done
echo "Done processing all files."
cd $START_DIR
You can also run the follow command to reset the query cache.
RESET QUERY CACHE
Since some of the other answers include info on rebuilding, and my use case also required a rebuild, I had a better solution (compared to those).
There's still a way to easily target just the one single worker
container that both rebuilds + restarts it in a single line, albeit it's not actually a single command. The best solution for me was simply rebuild and restart:
docker-compose build worker && docker-compose restart worker
This accomplishes both major goals at once for me:
worker
containerHope this helps anyone else getting here.
To print to any printer on the network you can send a PJL/PCL print job directly to a network printer on port 9100.
Please have a look at the below link that should give a good start:
http://frank.zinepal.com/printing-directly-to-a-network-printer
Also, If there is a way to call Windows cmd you can use FTP put to print your page on 9100. Below link should give you details, I have used this method for HP printers but I believe it will work for other printers.
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=bpj06165
The ZIP file format does allow to store the permission bits, but Windows programs normally ignore it.
The zip
utility on Cygwin however does preserve the x bit, just like it does on Linux.
If you do not want to use Cygwin, you can take a source code and tweak it so that all *.sh files get the executable bit set.
Or write a script like explained here
We call it the "ant" menu. Guess it was a good time to change since everyone had just gotten used to the hamburger.
matrix multiplication, see the following example:
> A <- matrix (c(1,3,4, 5,8,9, 1,3,3), 3,3)
> A
[,1] [,2] [,3]
[1,] 1 5 1
[2,] 3 8 3
[3,] 4 9 3
>
> B <- matrix (c(2,4,5, 8,9,2, 3,4,5), 3,3)
>
> B
[,1] [,2] [,3]
[1,] 2 8 3
[2,] 4 9 4
[3,] 5 2 5
>
>
> A %*% B
[,1] [,2] [,3]
[1,] 27 55 28
[2,] 53 102 56
[3,] 59 119 63
> B %*% A
[,1] [,2] [,3]
[1,] 38 101 35
[2,] 47 128 43
[3,] 31 86 26
Also see:
http://en.wikipedia.org/wiki/Matrix_multiplication
If this does not follow the size of matrix rule you will get the error:
> A <- matrix(c(1,2,3,4,5,6), 3,2)
> A
[,1] [,2]
[1,] 1 4
[2,] 2 5
[3,] 3 6
> B <- matrix (c(3,1,3,4,4,4,4,4,3), 3,3)
> B
[,1] [,2] [,3]
[1,] 3 4 4
[2,] 1 4 4
[3,] 3 4 3
> A%*%B
Error in A %*% B : non-conformable arguments
//Mysql sum of multiple rows Hi Here is the simple way to do sum of columns
SELECT sum(IF(day_1 = 1,1,0)+IF(day_3 = 1,1,0)++IF(day_4 = 1,1,0)) from attendence WHERE class_period_id='1' and student_id='1'
<form name="input" action="some.php" method="post">
<input type="text" name="user" id="mytext">
<input type="submit" value="Submit">
</form>
<script>
var w = someValue;
document.getElementById("mytext").value = w;
</script>
//php on some.php page
echo $_POST['user'];
In the Java Control Panel, under the Security tab, uncheck "Enable Java content in the browser" and Apply it. Then re-check it and apply again. This worked for me, and I had been struggling with this issue for days.
Perhaps what you're looking for is the SVG element's pointer-events property, which you can read about at the SVG w3C working group docs.
You can use CSS to set what happens to the SVG element when it is clicked, etc.
st.replaceAll("\\s+","")
removes all whitespaces and non-visible characters (e.g., tab, \n
).
st.replaceAll("\\s+","")
and st.replaceAll("\\s","")
produce the same result.
The second regex is 20% faster than the first one, but as the number consecutive spaces increases, the first one performs better than the second one.
Assign the value to a variable, if not used directly:
st = st.replaceAll("\\s+","")
The getActiveNetworkInfo() method of ConnectivityManager returns a NetworkInfo instance representing the first connected network interface it can find or null if none if the interfaces are connected. Checking if this method returns null should be enough to tell if an internet connection is available.
private boolean isNetworkAvailable() {
ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
return activeNetworkInfo != null;
}
You will also need:
in your android manifest.
Edit:
Note that having an active network interface doesn't guarantee that a particular networked service is available. Networks issues, server downtime, low signal, captive portals, content filters and the like can all prevent your app from reaching a server. For instance you can't tell for sure if your app can reach Twitter until you receive a valid response from the Twitter service.
getActiveNetworkInfo() shouldn't never give null. I don't know what they were thinking when they came up with that. It should give you an object always.
Exact transfer to Angular2+ is as below:
<button (click)="myFunc()"></button>
also in your component file:
import { Component, OnInit } from "@angular/core";
@Component({
templateUrl:"button.html" //this is the component which has the above button html
})
export class App implements OnInit{
constructor(){}
ngOnInit(){
}
myFunc(){
console.log("function called");
}
}
It's not clear what you want, or whether you want this trick to work with different targets, or whether you've defined these targets elsewhere, or what version of Make you're using, but what the heck, I'll go out on a limb:
ifeq (yes, ${TEST})
CXXFLAGS := ${CXXFLAGS} -DDESKTOP_TEST
test:
$(info ************ TEST VERSION ************)
else
release:
$(info ************ RELEASE VERSIOIN **********)
endif
Something very similar can be seen on http://goo.gl when you shorten the URL.
There is a readonly input element that gets programmatically focused, with tooltip press CTRL-C to copy.
When you hit that shortcut, the input content effectively gets into the clipboard. Really nice :)
From the Android documentation:
The
CookieSyncManager
is used to synchronize the browser cookie store between RAM and permanent storage. To get the best performance, browser cookies are saved in RAM. A separate thread saves the cookies between, driven by a timer.To use the
CookieSyncManager
, the host application has to call the following when the application starts:CookieSyncManager.createInstance(context)
To set up for sync, the host application has to call
CookieSyncManager.getInstance().startSync()
in Activity.onResume(), and call
CookieSyncManager.getInstance().stopSync()
in Activity.onPause().
To get instant sync instead of waiting for the timer to trigger, the host can call
CookieSyncManager.getInstance().sync()
The sync interval is 5 minutes, so you will want to force syncs manually anyway, for instance in onPageFinished(WebView, String). Note that even sync() happens asynchronously, so don't do it just as your activity is shutting down.
Finally something like this should work:
// use cookies to remember a logged in status
CookieSyncManager.createInstance(this);
CookieSyncManager.getInstance().startSync();
WebView webview = new WebView(this);
webview.getSettings().setJavaScriptEnabled(true);
setContentView(webview);
webview.loadUrl([MY URL]);
You can also use the card layout like below
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="60dp"
app:cardCornerRadius="30dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:text="Template"
/>
</LinearLayout>
</androidx.cardview.widget.CardView>
Maven 3 is more restrictive with the POM-Structure. You have to set versions of Plugins for instance.
With maven 3.1 these warnings may break you build. There are more changes between maven2 and maven3: https://cwiki.apache.org/confluence/display/MAVEN/Maven+3.x+Compatibility+Notes
You have to use $_POST['date']
instead of $date
if it's coming from a POST request ($_GET if it's a GET request).
You can do this way:
var preval = $('#my_select').val(); // get the def value
$("#reset").on("click", function () {
$('#my_select option[value*="' + preval + '"]').prop('selected', true);
});
take a var
which holds the default loaded value before change event then get the option with the attribute selector of value with holds the var
value set the property to selected.
My guess is that the system-status
element is declared after the variable declaration is run. Thus, at the time the variable is declared, it is actually being set to null?
You should declare it only, then assign its value from an onLoad
handler instead, because then you will be sure that it has properly initialized (loaded) the element in question.
You could also try putting the script at the bottom of the page (or at least somewhere after the system-status
element is declared) but it's not guaranteed to always work.
Another easy way is to use a CardView with the corner radius and an ImageView inside:
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:cardCornerRadius="8dp"
android:layout_margin="5dp"
android:elevation="10dp">
<ImageView
android:id="@+id/roundedImageView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/image"
android:background="@color/white"
android:scaleType="centerCrop"
/>
</androidx.cardview.widget.CardView>
try below code
public static int Length(String str) {
str = str + '\0';
int count = 0;
for (int i = 0; str.charAt(i) != '\0'; i++) {
count++;
}
return count;
}
./script.sh | sort -u
This is the same as monoxide's answer, but a bit more concise.