The div take the height of its parent, but since it has no content (expecpt for your divs) it will only be as height as its content.
You need to set the height of the body and html:
HTML:
<div class="block12">
<div class="block1">1</div>
<div class="block2">2</div>
</div>
<div class="block3">3</div>
CSS:
body, html {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
.block12 {
width: 100%;
height: 50%;
background: yellow;
overflow: auto;
}
.block1, .block2 {
width: 50%;
height: 100%;
display: inline-block;
margin-right: -4px;
background: lightgreen;
}
.block2 { background: lightgray }
.block3 {
width: 100%;
height: 50%;
background: lightblue;
}
And a JSFiddle
$rootScope.$on( "$routeChangeStart", function(event, next, current) {
//..do something
//event.stopPropagation(); //if you don't want event to bubble up
});
You can try :
DECLARE @counter int
SET @counter = 0
UPDATE [table]
SET [column] = @counter, @counter = @counter + 1```
Random randomGenerator = new Random();
int i = randomGenerator.nextInt(256);
System.out.println((char)i);
Should take care of what you want, assuming you consider '0,'1','2'.. as characters.
Here is how I would do that:
$sum = 5;
$product = 6;
$found = FALSE;
for ($a = 1; $a < $sum; $a++) {
$b = $sum - $a;
if ($a * $b == $product) {
$found = TRUE;
break;
}
}
if ($found) {
echo "The answer is a = $a, b = $b.";
} else {
echo "There is no answer where a and b are both integers.";
}
Basically, start at $a = 1
and $b = $sum - $a
, step through it one at a time since we know then that $a + $b == $sum
is always true, and multiply $a
and $b
to see if they equal $product
. If they do, that's the answer.
Whether that is the most efficient method is very much debatable.
UPDATE myTable
SET myColumn = NULL
WHERE myCondition
TL:DR version:
//Objective-C
[self.picker selectRow:2 inComponent:0 animated:YES];
//Swift
picker.selectRow(2, inComponent:0, animated:true)
Either you didn't set your picker to select the row (which you say you seem to have done but anyhow):
- (void)selectRow:(NSInteger)row inComponent:(NSInteger)component animated:(BOOL)animated
OR you didn't use the the following method to get the selected item from your picker
- (NSInteger)selectedRowInComponent:(NSInteger)component
This will get the selected row as Integer from your picker and do as you please with it. This should do the trick for yah. Good luck.
Anyhow read the ref: https://developer.apple.com/documentation/uikit/uipickerview
EDIT:
An example of manually setting and getting of a selected row in a UIPickerView:
the .h file:
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController <UIPickerViewDelegate, UIPickerViewDataSource>
{
UIPickerView *picker;
NSMutableArray *source;
}
@property (nonatomic,retain) UIPickerView *picker;
@property (nonatomic,retain) NSMutableArray *source;
-(void)pressed;
@end
the .m file:
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
@synthesize picker;
@synthesize source;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return YES;
}
- (void) viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
self.view.backgroundColor = [UIColor yellowColor];
self.source = [[NSMutableArray alloc] initWithObjects:@"EU", @"USA", @"ASIA", nil];
UIButton *pressme = [[UIButton alloc] initWithFrame:CGRectMake(20, 20, 280, 80)];
[pressme setTitle:@"Press me!!!" forState:UIControlStateNormal];
pressme.backgroundColor = [UIColor lightGrayColor];
[pressme addTarget:self action:@selector(pressed) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:pressme];
self.picker = [[UIPickerView alloc] initWithFrame:CGRectMake(20, 110, 280, 300)];
self.picker.delegate = self;
self.picker.dataSource = self;
[self.view addSubview:self.picker];
//This is how you manually SET(!!) a selection!
[self.picker selectRow:2 inComponent:0 animated:YES];
}
//logs the current selection of the picker manually
-(void)pressed
{
//This is how you manually GET(!!) a selection
int row = [self.picker selectedRowInComponent:0];
NSLog(@"%@", [source objectAtIndex:row]);
}
- (NSInteger)numberOfComponentsInPickerView:
(UIPickerView *)pickerView
{
return 1;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView
numberOfRowsInComponent:(NSInteger)component
{
return [source count];
}
- (NSString *)pickerView:(UIPickerView *)pickerView
titleForRow:(NSInteger)row
forComponent:(NSInteger)component
{
return [source objectAtIndex:row];
}
#pragma mark -
#pragma mark PickerView Delegate
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row
inComponent:(NSInteger)component
{
// NSLog(@"%@", [source objectAtIndex:row]);
}
@end
EDIT for Swift solution (Source: Dan Beaulieu's answer)
Define an Outlet:
@IBOutlet weak var pickerView: UIPickerView! // for example
Then in your viewWillAppear or your viewDidLoad, for example, you can use the following:
pickerView.selectRow(rowMin, inComponent: 0, animated: true)
pickerView.selectRow(rowSec, inComponent: 1, animated: true)
If you inspect the Swift 2.0 framework you'll see .selectRow defined as:
func selectRow(row: Int, inComponent component: Int, animated: Bool)
option clicking .selectRow in Xcode displays the following:
An alternative solution is to execute an external command, obviously, this solution limits the portability of the application.
For example, for an application that runs on Windows, a PowerShell command can be executed through jPowershell, as shown in the following code:
public String getMyPublicIp() {
// PowerShell command
String command = "(Invoke-WebRequest ifconfig.me/ip).Content.Trim()";
String powerShellOut = PowerShell.executeSingleCommand(command).getCommandOutput();
// Connection failed
if (powerShellOut.contains("InvalidOperation")) {
powerShellOut = null;
}
return powerShellOut;
}
I have just come across this from Common Crawl.
Might be the answer we are all looking for!!
Here's a fix for the height.
In your CSS use:
#your-object: height: 100vh;
For browser that don't support vh-units
, use modernizr.
Add this script (to add detection for vh-units
)
// https://github.com/Modernizr/Modernizr/issues/572
// Similar to http://jsfiddle.net/FWeinb/etnYC/
Modernizr.addTest('cssvhunit', function() {
var bool;
Modernizr.testStyles("#modernizr { height: 50vh; }", function(elem, rule) {
var height = parseInt(window.innerHeight/2,10),
compStyle = parseInt((window.getComputedStyle ?
getComputedStyle(elem, null) :
elem.currentStyle)["height"],10);
bool= !!(compStyle == height);
});
return bool;
});
Finally use this function to add the height of the viewport to #your-object
if the browser doesn't support vh-units
:
$(function() {
if (!Modernizr.cssvhunit) {
var windowH = $(window).height();
$('#your-object').css({'height':($(window).height())+'px'});
}
});
just run the following command in the node project
npm install
its worked for me
If your redirect is in PHP, nothing should be echoed to the user before the redirect instruction.
See header for more info.
Remember that header() must be called before any actual output is sent, either by normal HTML tags, blank lines in a file, or from PHP
Otherwise, you can use Javascript to redirect the user.
Just use
window.location = "http://www.google.com/"
Typescript
function lengthToExcelColumn(len: number): string {
let dividend: number = len;
let columnName: string = '';
let modulo: number = 0;
while (dividend > 0) {
modulo = (dividend - 1) % 26;
columnName = String.fromCharCode(65 + modulo).toString() + columnName;
dividend = Math.floor((dividend - modulo) / 26);
}
return columnName;
}
In one line:
String date=new SimpleDateFormat("MM-dd-yyyy").format(new SimpleDateFormat("yyyy-MM-dd").parse("2011-01-01"));
Where:
String date=new SimpleDateFormat("FinalFormat").format(new SimpleDateFormat("InitialFormat").parse("StringDate"));
Is there any way to dump the call stack in a running process in C or C++ every time a certain function is called?
No there is not, although platform-dependent solutions might exist.
Related, if you open a file that uses both tabs and spaces, assuming you've got
set expandtab ts=4 sw=4 ai
You can replace all the tabs with spaces in the entire file with
:%retab
The distance estimate provided by iOS is based on the ratio of the beacon signal strength (rssi) over the calibrated transmitter power (txPower). The txPower is the known measured signal strength in rssi at 1 meter away. Each beacon must be calibrated with this txPower value to allow accurate distance estimates.
While the distance estimates are useful, they are not perfect, and require that you control for other variables. Be sure you read up on the complexities and limitations before misusing this.
When we were building the Android iBeacon library, we had to come up with our own independent algorithm because the iOS CoreLocation source code is not available. We measured a bunch of rssi measurements at known distances, then did a best fit curve to match our data points. The algorithm we came up with is shown below as Java code.
Note that the term "accuracy" here is iOS speak for distance in meters. This formula isn't perfect, but it roughly approximates what iOS does.
protected static double calculateAccuracy(int txPower, double rssi) {
if (rssi == 0) {
return -1.0; // if we cannot determine accuracy, return -1.
}
double ratio = rssi*1.0/txPower;
if (ratio < 1.0) {
return Math.pow(ratio,10);
}
else {
double accuracy = (0.89976)*Math.pow(ratio,7.7095) + 0.111;
return accuracy;
}
}
Note: The values 0.89976, 7.7095 and 0.111 are the three constants calculated when solving for a best fit curve to our measured data points. YMMV
If you go there will be trouble, but if you stay it will be double.
I'd much rather go against some supposed non-plurals naming convention than name my table after something which might be a reserved word.
It's sort of arbitrary which of the terms to use. It could have been either way. Perhaps the language designers thought of "extends" as the most fundamental term, and "implements" as the special case for interfaces.
But I think implements
would make slightly more sense. I think that communicates more that the parameter types don't have to be in an inheritance relationship, they can be in any kind of subtype relationship.
The Java Glossary expresses a similar view.
The thing is that the printf function needs a pointer as parameter. However a char is a variable that you have directly acces. A string is a pointer on the first char of the string, so you don't have to add the * because * is the identifier for the pointer of a variable.
I resolved problem by adding following to my build.gradle file
android {
useLibrary 'org.apache.http.legacy'}
However this only works if you are using gradle 1.3.0-beta2 or greater, so you will have to add this to buildscript dependencies if you are on a lower version:
classpath 'com.android.tools.build:gradle:1.3.0-beta2'
Detached head means you have not checked out your branch properly or you have just checked out a single commit.
If you encounter such an issue then first stash your local changes so that you won't lose your changes.
After that... checkout your desired branch using the command:
Let's say you want branch MyOriginalBranch:
git checkout -b someName origin/MyOriginalBranch
It should be noted that releasing an alpha app for the first time may take up to a few hours before an opt-in link is available and invitations are sent out to the email addresses in your testers list.
From Google support:
After publishing an alpha/beta app for the first time, it may take a few hours for your test link to be available to testers. If you publish additional changes, they may take several hours to be available for testers. [source]
You may want to wait until you have an initial opt-in link before publishing more changes to the app because doing so is likely to increase your wait time for receiving your tester link; or, may lead to your testers testing with the incorrect version.
Hope that clears things up for anyone confused about why they don't have an opt-in link as depicted in screenshots in this SO thread!
IIS will create it again AFAIK.
Tim Storer wrote a more flexible and nicer looking timeline.sty
(Internet Archive Wayback Machine link, as original is gone). In addition, the line is horizontal rather than vertical. So for instance:
\begin{timeline}{2008}{2010}{50}{250}
\MonthAndYearEvent{4}{2008}{First Podcast}
\MonthAndYearEvent{7}{2008}{Private Beta}
\MonthAndYearEvent{9}{2008}{Public Beta}
\YearEvent{2009}{IPO?}
\end{timeline}
produces a timeline that looks like this:
2008 2010
· · April, 2008 First Podcast ·
· July, 2008 Private Beta
· September, 2008 Public Beta
· 2009 IPO?
Personally, I find this a more pleasing solution than the other answers. But I also find myself modifying the code to get something closer to what I think a timeline should look like. So there's not definitive solution in my opinion.
MultiBinding friendly version...
private void ComboBox_Loaded(object sender, RoutedEventArgs e)
{
BindingOperations.GetBindingExpressionBase((ComboBox)sender, ComboBox.ItemsSourceProperty).UpdateTarget();
}
<body>
<div style=" display: table; margin: 250 auto;">
In center
</div>
</body>
If you want to change the vertical position, change the value of 250 and you can arrange the content as per your need. There is no need to give the width and other parameters.
Use a json array, in the format:
[
{"ID":"12345","Timestamp":"20140101", "Usefulness":"Yes",
"Code":[{"event1":"A","result":"1"},…]},
{"ID":"1A35B","Timestamp":"20140102", "Usefulness":"No",
"Code":[{"event1":"B","result":"1"},…]},
{"ID":"AA356","Timestamp":"20140103", "Usefulness":"No",
"Code":[{"event1":"B","result":"0"},…]},
...
]
Then import it into your python code
import json
with open('file.json') as json_file:
data = json.load(json_file)
Now the content of data is an array with dictionaries representing each of the elements.
You can access it easily, i.e:
data[0]["ID"]
If you are using KIBANA with elasticsearch then you can use below RESt request to create and put in the index.
CREATING INDEX:
http://localhost:9200/company
PUT company
{
"settings": {
"index": {
"number_of_shards": 1,
"number_of_replicas": 1
},
"analysis": {
"analyzer": {
"analyzer-name": {
"type": "custom",
"tokenizer": "keyword",
"filter": "lowercase"
}
}
}
},
"mappings": {
"employee": {
"properties": {
"age": {
"type": "long"
},
"experience": {
"type": "long"
},
"name": {
"type": "text",
"analyzer": "analyzer-name"
}
}
}
}
}
CREATING DOCUMENT:
POST http://localhost:9200/company/employee/2/_create
{
"name": "Hemani",
"age" : 23,
"experienceInYears" : 2
}
This is what I use to deep watch an object. My requirement was watching the child fields of the object.
new Vue({
el: "#myElement",
data:{
entity: {
properties: []
}
},
watch:{
'entity.properties': {
handler: function (after, before) {
// Changes detected.
},
deep: true
}
}
});
The application automatically stops when the last Stage
is closed. At this moment, the stop()
method of your Application
class is called, so you don't need an equivalent to setDefaultCloseOperation()
If you want to stop the application before that, you can call Platform.exit()
, for example in your onCloseRequest
call.
You can have all these information on the javadoc page of Application
: http://docs.oracle.com/javafx/2/api/javafx/application/Application.html
While Guy's answer is correct (and probably fits 9 out of 10 cases), it's worth noting that if you are attempting to do this from a control that already has its DataContext set further up the stack, you'll resetting this when you set DataContext back to itself:
DataContext="{Binding RelativeSource={RelativeSource Self}}"
This will of course then break your existing bindings.
If this is the case, you should set the RelativeSource on the control you are trying to bind, rather than its parent.
i.e. for binding to a UserControl's properties:
Binding Path=PropertyName,
RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}
Given how difficult it can be currently to see what's going on with data binding, it's worth bearing this in mind even if you find that setting RelativeSource={RelativeSource Self}
currently works :)
Yes. Use the attach
command. Check out this link for more information. Typing help attach
at a GDB console gives the following:
(gdb) help attach
Attach to a process or file outside of GDB. This command attaches to another target, of the same type as your last "
target
" command ("info files
" will show your target stack). The command may take as argument a process id, a process name (with an optional process-id as a suffix), or a device file. For a process id, you must have permission to send the process a signal, and it must have the same effective uid as the debugger. When using "attach
" to an existing process, the debugger finds the program running in the process, looking first in the current working directory, or (if not found there) using the source file search path (see the "directory
" command). You can also use the "file
" command to specify the program, and to load its symbol table.
NOTE: You may have difficulty attaching to a process due to improved security in the Linux kernel - for example attaching to the child of one shell from another.
You'll likely need to set /proc/sys/kernel/yama/ptrace_scope
depending on your requirements. Many systems now default to 1
or higher.
The sysctl settings (writable only with CAP_SYS_PTRACE) are:
0 - classic ptrace permissions: a process can PTRACE_ATTACH to any other
process running under the same uid, as long as it is dumpable (i.e.
did not transition uids, start privileged, or have called
prctl(PR_SET_DUMPABLE...) already). Similarly, PTRACE_TRACEME is
unchanged.
1 - restricted ptrace: a process must have a predefined relationship
with the inferior it wants to call PTRACE_ATTACH on. By default,
this relationship is that of only its descendants when the above
classic criteria is also met. To change the relationship, an
inferior can call prctl(PR_SET_PTRACER, debugger, ...) to declare
an allowed debugger PID to call PTRACE_ATTACH on the inferior.
Using PTRACE_TRACEME is unchanged.
2 - admin-only attach: only processes with CAP_SYS_PTRACE may use ptrace
with PTRACE_ATTACH, or through children calling PTRACE_TRACEME.
3 - no attach: no processes may use ptrace with PTRACE_ATTACH nor via
PTRACE_TRACEME. Once set, this sysctl value cannot be changed.
Just to add to @ThijsW's answer, there is a significant speed advantage to the first method over the concatenation method:
big = 1e5;
tic;
x = rand(big,1);
toc
x = zeros(big,1);
tic;
for ii = 1:big
x(ii) = rand;
end
toc
x = [];
tic;
for ii = 1:big
x(end+1) = rand;
end;
toc
x = [];
tic;
for ii = 1:big
x = [x rand];
end;
toc
Elapsed time is 0.004611 seconds.
Elapsed time is 0.016448 seconds.
Elapsed time is 0.034107 seconds.
Elapsed time is 12.341434 seconds.
I got these times running in 2012b however when I ran the same code on the same computer in matlab 2010a I get
Elapsed time is 0.003044 seconds.
Elapsed time is 0.009947 seconds.
Elapsed time is 12.013875 seconds.
Elapsed time is 12.165593 seconds.
So I guess the speed advantage only applies to more recent versions of Matlab
Building off of Viktar's answer, here's an implementation you can call once on a given hidden input element to ensure that subsequent change events get fired whenever the value of the input element changes:
/**
* Modifies the provided hidden input so value changes to trigger events.
*
* After this method is called, any changes to the 'value' property of the
* specified input will trigger a 'change' event, just like would happen
* if the input was a text field.
*
* As explained in the following SO post, hidden inputs don't normally
* trigger on-change events because the 'blur' event is responsible for
* triggering a change event, and hidden inputs aren't focusable by virtue
* of being hidden elements:
* https://stackoverflow.com/a/17695525/4342230
*
* @param {HTMLInputElement} inputElement
* The DOM element for the hidden input element.
*/
function setupHiddenInputChangeListener(inputElement) {
const propertyName = 'value';
const {get: originalGetter, set: originalSetter} =
findPropertyDescriptor(inputElement, propertyName);
// We wrap this in a function factory to bind the getter and setter values
// so later callbacks refer to the correct object, in case we use this
// method on more than one hidden input element.
const newPropertyDescriptor = ((_originalGetter, _originalSetter) => {
return {
set: function(value) {
const currentValue = originalGetter.call(inputElement);
// Delegate the call to the original property setter
_originalSetter.call(inputElement, value);
// Only fire change if the value actually changed.
if (currentValue !== value) {
inputElement.dispatchEvent(new Event('change'));
}
},
get: function() {
// Delegate the call to the original property getter
return _originalGetter.call(inputElement);
}
}
})(originalGetter, originalSetter);
Object.defineProperty(inputElement, propertyName, newPropertyDescriptor);
};
/**
* Search the inheritance tree of an object for a property descriptor.
*
* The property descriptor defined nearest in the inheritance hierarchy to
* the class of the given object is returned first.
*
* Credit for this approach:
* https://stackoverflow.com/a/38802602/4342230
*
* @param {Object} object
* @param {String} propertyName
* The name of the property for which a descriptor is desired.
*
* @returns {PropertyDescriptor, null}
*/
function findPropertyDescriptor(object, propertyName) {
if (object === null) {
return null;
}
if (object.hasOwnProperty(propertyName)) {
return Object.getOwnPropertyDescriptor(object, propertyName);
}
else {
const parentClass = Object.getPrototypeOf(object);
return findPropertyDescriptor(parentClass, propertyName);
}
}
Call this on document ready like so:
$(document).ready(function() {
setupHiddenInputChangeListener($('myinput')[0]);
});
What you may actually want to use is an Iterable
that can return a fresh Iterator
multiple times by calling iterator()
.
//A function that needs to iterate multiple times can be given one Iterable:
public void func(Iterable<Type> ible) {
Iterator<Type> it = ible.iterator(); //Gets an iterator
while (it.hasNext()) {
it.next();
}
it = ible.iterator(); //Gets a NEW iterator, also from the beginning
while (it.hasNext()) {
it.next();
}
}
You must define what the iterator()
method does just once beforehand:
void main() {
LinkedList<String> list; //This could be any type of object that has an iterator
//Define an Iterable that knows how to retrieve a fresh iterator
Iterable<Type> ible = new Iterable<Type>() {
@Override
public Iterator<Type> iterator() {
return list.listIterator(); //Define how to get a fresh iterator from any object
}
};
//Now with a single instance of an Iterable,
func(ible); //you can iterate through it multiple times.
}
Evaluate
might suit:
http://www.mrexcel.com/forum/showthread.php?t=62067
Function Eval(Ref As String)
Application.Volatile
Eval = Evaluate(Ref)
End Function
For the Platform Independent Users or Windows users, what you can do is:
import runtime:
import (
"runtime"
"strings"
)
and then trim the string like this:
if runtime.GOOS == "windows" {
input = strings.TrimRight(input, "\r\n")
} else {
input = strings.TrimRight(input, "\n")
}
now you can compare it like that:
if strings.Compare(input, "a") == 0 {
//....yourCode
}
This is a better approach when you're making use of STDIN on multiple platforms.
This happens because on windows lines end with "\r\n"
which is known as CRLF, but on UNIX lines end with "\n"
which is known as LF and that's why we trim "\n"
on unix based operating systems while we trim "\r\n"
on windows.
You should try it like this:
var result =
from priceLog in PriceLogList
group priceLog by priceLog.LogDateTime.ToString("MMM yyyy") into dateGroup
select new {
LogDateTime = dateGroup.Key,
AvgPrice = dateGroup.Average(priceLog => priceLog.Price)
};
Many correct answers have been given here, but I'm adding this one to emphasize one point which caused some rushed attempts to fail before: exclude-dir
takes a pattern, not a path to a directory.
Say your search is:
grep -r myobject
And you notice that your output is cluttered with results from the src/other/objects-folder
. This command will not give you the intended result:
grep -r myobject --exclude-dir=src/other/objects-folder
And you may wonder why exclude-dir
isn't working! To actually exclude results from the objects-folder
, simply do this:
grep -r myobject --exclude-dir=objects-folder
In other words, just use the folder name, not the path. Obvious once you know it.
From the man page:
--exclude-dir=GLOB
Skip any command-line directory with a name suffix that matches the pattern GLOB. When searching recursively, skip any subdirectory whose base name matches GLOB. Ignore any redundant trailing slashes in GLOB.
No "VALUES", no parenthesis:
INSERT INTO Table2(LongIntColumn2, CurrencyColumn2)
SELECT LongIntColumn1, Avg(CurrencyColumn) as CurrencyColumn1 FROM Table1 GROUP BY LongIntColumn1;
Karl answered your search-path question, but as far as the "source of the files" goes, one thing to be aware of is that if you install the libfoo
package and want to do some development with it (i.e., use its headers), you will also need to install libfoo-dev
. The standard library header files are already in /usr/include
, as you saw.
Note that some libraries with a lot of headers will install them to a subdirectory, e.g., /usr/include/openssl
. To include one of those, just provide the path without the /usr/include
part, for example:
#include <openssl/aes.h>
The parentheses are poorly placed.
You need to use:
doThrow(new Exception()).when(mockedObject).methodReturningVoid(...);
^
and NOT use:
doThrow(new Exception()).when(mockedObject.methodReturningVoid(...));
^
This is explained in the documentation
The overall dimensions of a range are in its Width
and Height
properties.
Dim r As Range
Set r = ActiveSheet.Range("A4:H12")
Debug.Print r.Width
Debug.Print r.Height
File.GetLastWriteTime Method
Returns the date and time the specified file or directory was last written to.
string path = @"c:\Temp\MyTest.txt";
DateTime dt = File.GetLastWriteTime(path);
For create time File.GetCreationTime Method
DateTime fileCreatedDate = File.GetCreationTime(@"C:\Example\MyTest.txt");
Console.WriteLine("file created: " + fileCreatedDate);
How about something as simple as:
function negative(number){
return number < 0;
}
The * 1
part is to convert strings to numbers.
I had a similar problem, but the accepted answer did not resolve it - I was not using a virtual environment. This is what I had to do:
sudo python -m pip install boto3
I do not know why this behaved differently from sudo pip install boto3
.
You need to escape your quotes.
You can do this:
echo "<script type=\"text/javascript\">";
or this:
echo "<script type='text/javascript'>";
or this:
echo '<script type="text/javascript">';
Or just stay out of php
<script type="text/javascript">
The primary purpose of AF_INET was to allow for other possible network protocols or address families (AF is for address family; PF_INET is for the (IPv4) internet protocol family). For example, there probably are a few Netware SPX/IPX networks around still; there were other network systems like DECNet, StarLAN and SNA, not to mention the ill-begotten ISO OSI (Open Systems Interconnection), and these did not necessarily use the now ubiquitous IP address to identify the peer host in network connections.
The ubiquitous alternative to AF_INET (which, in retrospect, should have been named AF_INET4) is AF_INET6, for the IPv6 address family. IPv4 uses 32-bit addresses; IPv6 uses 128-bit addresses.
You may see some other values - but they are unusual. It is there to allow for alternatives and future directions. The sockets interface is actually very general indeed - which is one of the reasons it has thrived where other networking interfaces have withered.
Life has (mostly) gotten simpler - be grateful.
On a related note, you may also like:
shopt -s autocd
This allows you to cd a dir by just typing in the dir
[user@host ~]$ /cygdrive/d
cd /cygdrive/d
[user@host /cygdrive/d]$
To make is persistent you should add it to your ~/.bashrc
The answers above have not emphasized enough the importance of locking. I'm not a big fan of cursors because they often result in table level locks.
Just use regex to get rid of any non number characters whenever a key is pressed or the textbox loses focus.
var numInput;
window.onload = function () {
numInput = document.getElementById('numonly');
numInput.onkeydown = numInput.onblur = numInput.onkeyup = function()
{
numInput.value = numInput.value.replace(/[^0-9]+/,"");
}
}
ERR_CACHE_MISS
error solutionyou just need add one line code <uses-permission android:name="android.permission.INTERNET"/>
in your app/src/main/AndroidManifest.xml
file as below screenshots shows.
I assume you are using TCP sockets for the client-server interaction? One way to send different types of data to the server and have it be able to differentiate between the two is to dedicate the first byte (or more if you have more than 256 types of messages) as some kind of identifier. If the first byte is one, then it is message A, if its 2, then its message B. One easy way to send this over the socket is to use DataOutputStream/DataInputStream
:
Client:
Socket socket = ...; // Create and connect the socket
DataOutputStream dOut = new DataOutputStream(socket.getOutputStream());
// Send first message
dOut.writeByte(1);
dOut.writeUTF("This is the first type of message.");
dOut.flush(); // Send off the data
// Send the second message
dOut.writeByte(2);
dOut.writeUTF("This is the second type of message.");
dOut.flush(); // Send off the data
// Send the third message
dOut.writeByte(3);
dOut.writeUTF("This is the third type of message (Part 1).");
dOut.writeUTF("This is the third type of message (Part 2).");
dOut.flush(); // Send off the data
// Send the exit message
dOut.writeByte(-1);
dOut.flush();
dOut.close();
Server:
Socket socket = ... // Set up receive socket
DataInputStream dIn = new DataInputStream(socket.getInputStream());
boolean done = false;
while(!done) {
byte messageType = dIn.readByte();
switch(messageType)
{
case 1: // Type A
System.out.println("Message A: " + dIn.readUTF());
break;
case 2: // Type B
System.out.println("Message B: " + dIn.readUTF());
break;
case 3: // Type C
System.out.println("Message C [1]: " + dIn.readUTF());
System.out.println("Message C [2]: " + dIn.readUTF());
break;
default:
done = true;
}
}
dIn.close();
Obviously, you can send all kinds of data, not just bytes and strings (UTF).
Note that writeUTF
writes a modified UTF-8 format, preceded by a length indicator of an unsigned two byte encoded integer giving you 2^16 - 1 = 65535
bytes to send. This makes it possible for readUTF
to find the end of the encoded string. If you decide on your own record structure then you should make sure that the end and type of the record is either known or detectable.
I had the same problem. Turns out I was using UIAlerts
that needed the main queue. But, they've been deprecated.
When I changed the UIAlerts
to the UIAlertController
, I no longer had the problem and did not have to use any dispatch_async
code. The lesson - pay attention to warnings. They help even when you don't expect it.
The Hacker's Delight bit-twiddling becomes so much clearer when you write out the bit patterns.
unsigned int bitCount(unsigned int x)
{
x = ((x >> 1) & 0b01010101010101010101010101010101)
+ (x & 0b01010101010101010101010101010101);
x = ((x >> 2) & 0b00110011001100110011001100110011)
+ (x & 0b00110011001100110011001100110011);
x = ((x >> 4) & 0b00001111000011110000111100001111)
+ (x & 0b00001111000011110000111100001111);
x = ((x >> 8) & 0b00000000111111110000000011111111)
+ (x & 0b00000000111111110000000011111111);
x = ((x >> 16)& 0b00000000000000001111111111111111)
+ (x & 0b00000000000000001111111111111111);
return x;
}
The first step adds the even bits to the odd bits, producing a sum of bits in each two. The other steps add high-order chunks to low-order chunks, doubling the chunk size all the way up, until we have the final count taking up the entire int.
You need to have the pointer to point somewhere to use it.
Try this code:
char word[64];
scanf("%s", word);
This creates a character array of lenth 64 and reads input to it. Note that if the input is longer than 64 bytes the word array overflows and your program becomes unreliable.
As Jens pointed out, it would be better to not use scanf for reading strings. This would be safe solution.
char word[64]
fgets(word, 63, stdin);
word[63] = 0;
It has a -force
parameter.????
You can make use of the IActionResult interface in an API controller method, like so...
[HttpGet("GetReportData/{year}")]
public async Task<IActionResult> GetReportData(int year)
{
// Render Excel document in memory and return as Byte[]
Byte[] file = await this._reportDao.RenderReportAsExcel(year);
return File(file, "application/vnd.openxmlformats", "fileName.xlsx");
}
This example is simplified, but should get the point across. In .NET Core this process is so much simpler than in previous versions of .NET - i.e. no setting response type, content, headers, etc.
Also, of course the MIME type for the file and the extension will depend on individual needs.
Reference: SO Post Answer by @NKosi
I'm surprised no one has mentioned using regular expressions via re.sub()
:
import re
print re.sub(r'([\"])', r'\\\1', 'it\'s "this"') # it's \"this\"
print re.sub(r"([\'])", r'\\\1', 'it\'s "this"') # it\'s "this"
print re.sub(r'([\" \'])', r'\\\1', 'it\'s "this"') # it\'s\ \"this\"
Important things to note:
\
as well as the character(s) you're looking for.
You're going to be using \
to escape your characters, so you need to escape
that as well.([\"])
, so that the substitution
pattern can use the found character when it adds \
in front of it. (That's what
\1
does: uses the value of the first parenthesized group.)r
in front of r'([\"])'
means it's a raw string. Raw strings use different
rules for escaping backslashes. To write ([\"])
as a plain string, you'd need to
double all the backslashes and write '([\\"])'
. Raw strings are friendlier when
you're writing regular expressions.\
to distinguish it from a
backslash that precedes a substitution group, e.g. \1
, hence r'\\\1'
. To write
that as a plain string, you'd need '\\\\\\1'
— and nobody wants that.You can achieve it using custom log4j appender.
MaxNumberOfDays - possibility to set amount of days of rotated log files.
CompressBackups - possibility to archive old logs with zip extension.
package com.example.package;
import org.apache.log4j.FileAppender;
import org.apache.log4j.Layout;
import org.apache.log4j.helpers.LogLog;
import org.apache.log4j.spi.LoggingEvent;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Files;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.Optional;
import java.util.TimeZone;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class CustomLog4jAppender extends FileAppender {
private static final int TOP_OF_TROUBLE = -1;
private static final int TOP_OF_MINUTE = 0;
private static final int TOP_OF_HOUR = 1;
private static final int HALF_DAY = 2;
private static final int TOP_OF_DAY = 3;
private static final int TOP_OF_WEEK = 4;
private static final int TOP_OF_MONTH = 5;
private String datePattern = "'.'yyyy-MM-dd";
private String compressBackups = "false";
private String maxNumberOfDays = "7";
private String scheduledFilename;
private long nextCheck = System.currentTimeMillis() - 1;
private Date now = new Date();
private SimpleDateFormat sdf;
private RollingCalendar rc = new RollingCalendar();
private static final TimeZone gmtTimeZone = TimeZone.getTimeZone("GMT");
public CustomLog4jAppender() {
}
public CustomLog4jAppender(Layout layout, String filename, String datePattern) throws IOException {
super(layout, filename, true);
this.datePattern = datePattern;
activateOptions();
}
public void setDatePattern(String pattern) {
datePattern = pattern;
}
public String getDatePattern() {
return datePattern;
}
@Override
public void activateOptions() {
super.activateOptions();
if (datePattern != null && fileName != null) {
now.setTime(System.currentTimeMillis());
sdf = new SimpleDateFormat(datePattern);
int type = computeCheckPeriod();
printPeriodicity(type);
rc.setType(type);
File file = new File(fileName);
scheduledFilename = fileName + sdf.format(new Date(file.lastModified()));
} else {
LogLog.error("Either File or DatePattern options are not set for appender [" + name + "].");
}
}
private void printPeriodicity(int type) {
String appender = "Log4J Appender: ";
switch (type) {
case TOP_OF_MINUTE:
LogLog.debug(appender + name + " to be rolled every minute.");
break;
case TOP_OF_HOUR:
LogLog.debug(appender + name + " to be rolled on top of every hour.");
break;
case HALF_DAY:
LogLog.debug(appender + name + " to be rolled at midday and midnight.");
break;
case TOP_OF_DAY:
LogLog.debug(appender + name + " to be rolled at midnight.");
break;
case TOP_OF_WEEK:
LogLog.debug(appender + name + " to be rolled at start of week.");
break;
case TOP_OF_MONTH:
LogLog.debug(appender + name + " to be rolled at start of every month.");
break;
default:
LogLog.warn("Unknown periodicity for appender [" + name + "].");
}
}
private int computeCheckPeriod() {
RollingCalendar rollingCalendar = new RollingCalendar(gmtTimeZone, Locale.ENGLISH);
Date epoch = new Date(0);
if (datePattern != null) {
for (int i = TOP_OF_MINUTE; i <= TOP_OF_MONTH; i++) {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(datePattern);
simpleDateFormat.setTimeZone(gmtTimeZone);
String r0 = simpleDateFormat.format(epoch);
rollingCalendar.setType(i);
Date next = new Date(rollingCalendar.getNextCheckMillis(epoch));
String r1 = simpleDateFormat.format(next);
if (!r0.equals(r1)) {
return i;
}
}
}
return TOP_OF_TROUBLE;
}
private void rollOver() throws IOException {
if (datePattern == null) {
errorHandler.error("Missing DatePattern option in rollOver().");
return;
}
String datedFilename = fileName + sdf.format(now);
if (scheduledFilename.equals(datedFilename)) {
return;
}
this.closeFile();
File target = new File(scheduledFilename);
if (target.exists()) {
Files.delete(target.toPath());
}
File file = new File(fileName);
boolean result = file.renameTo(target);
if (result) {
LogLog.debug(fileName + " -> " + scheduledFilename);
} else {
LogLog.error("Failed to rename [" + fileName + "] to [" + scheduledFilename + "].");
}
try {
this.setFile(fileName, false, this.bufferedIO, this.bufferSize);
} catch (IOException e) {
errorHandler.error("setFile(" + fileName + ", false) call failed.");
}
scheduledFilename = datedFilename;
}
@Override
protected void subAppend(LoggingEvent event) {
long n = System.currentTimeMillis();
if (n >= nextCheck) {
now.setTime(n);
nextCheck = rc.getNextCheckMillis(now);
try {
cleanupAndRollOver();
} catch (IOException ioe) {
LogLog.error("cleanupAndRollover() failed.", ioe);
}
}
super.subAppend(event);
}
public String getCompressBackups() {
return compressBackups;
}
public void setCompressBackups(String compressBackups) {
this.compressBackups = compressBackups;
}
public String getMaxNumberOfDays() {
return maxNumberOfDays;
}
public void setMaxNumberOfDays(String maxNumberOfDays) {
this.maxNumberOfDays = maxNumberOfDays;
}
protected void cleanupAndRollOver() throws IOException {
File file = new File(fileName);
Calendar cal = Calendar.getInstance();
int maxDays = 7;
try {
maxDays = Integer.parseInt(getMaxNumberOfDays());
} catch (Exception e) {
// just leave it at 7.
}
cal.add(Calendar.DATE, -maxDays);
Date cutoffDate = cal.getTime();
if (file.getParentFile().exists()) {
File[] files = file.getParentFile().listFiles(new StartsWithFileFilter(file.getName(), false));
int nameLength = file.getName().length();
for (File value : Optional.ofNullable(files).orElse(new File[0])) {
String datePart;
try {
datePart = value.getName().substring(nameLength);
Date date = sdf.parse(datePart);
if (date.before(cutoffDate)) {
Files.delete(value.toPath());
} else if (getCompressBackups().equalsIgnoreCase("YES") || getCompressBackups().equalsIgnoreCase("TRUE")) {
zipAndDelete(value);
}
} catch (Exception pe) {
// This isn't a file we should touch (it isn't named correctly)
}
}
}
rollOver();
}
private void zipAndDelete(File file) throws IOException {
if (!file.getName().endsWith(".zip")) {
File zipFile = new File(file.getParent(), file.getName() + ".zip");
try (FileInputStream fis = new FileInputStream(file);
FileOutputStream fos = new FileOutputStream(zipFile);
ZipOutputStream zos = new ZipOutputStream(fos)) {
ZipEntry zipEntry = new ZipEntry(file.getName());
zos.putNextEntry(zipEntry);
byte[] buffer = new byte[4096];
while (true) {
int bytesRead = fis.read(buffer);
if (bytesRead == -1) {
break;
} else {
zos.write(buffer, 0, bytesRead);
}
}
zos.closeEntry();
}
Files.delete(file.toPath());
}
}
class StartsWithFileFilter implements FileFilter {
private String startsWith;
private boolean inclDirs;
StartsWithFileFilter(String startsWith, boolean includeDirectories) {
super();
this.startsWith = startsWith.toUpperCase();
inclDirs = includeDirectories;
}
public boolean accept(File pathname) {
if (!inclDirs && pathname.isDirectory()) {
return false;
} else {
return pathname.getName().toUpperCase().startsWith(startsWith);
}
}
}
class RollingCalendar extends GregorianCalendar {
private static final long serialVersionUID = -3560331770601814177L;
int type = CustomLog4jAppender.TOP_OF_TROUBLE;
RollingCalendar() {
super();
}
RollingCalendar(TimeZone tz, Locale locale) {
super(tz, locale);
}
void setType(int type) {
this.type = type;
}
long getNextCheckMillis(Date now) {
return getNextCheckDate(now).getTime();
}
Date getNextCheckDate(Date now) {
this.setTime(now);
switch (type) {
case CustomLog4jAppender.TOP_OF_MINUTE:
this.set(Calendar.SECOND, 0);
this.set(Calendar.MILLISECOND, 0);
this.add(Calendar.MINUTE, 1);
break;
case CustomLog4jAppender.TOP_OF_HOUR:
this.set(Calendar.MINUTE, 0);
this.set(Calendar.SECOND, 0);
this.set(Calendar.MILLISECOND, 0);
this.add(Calendar.HOUR_OF_DAY, 1);
break;
case CustomLog4jAppender.HALF_DAY:
this.set(Calendar.MINUTE, 0);
this.set(Calendar.SECOND, 0);
this.set(Calendar.MILLISECOND, 0);
int hour = get(Calendar.HOUR_OF_DAY);
if (hour < 12) {
this.set(Calendar.HOUR_OF_DAY, 12);
} else {
this.set(Calendar.HOUR_OF_DAY, 0);
this.add(Calendar.DAY_OF_MONTH, 1);
}
break;
case CustomLog4jAppender.TOP_OF_DAY:
this.set(Calendar.HOUR_OF_DAY, 0);
this.set(Calendar.MINUTE, 0);
this.set(Calendar.SECOND, 0);
this.set(Calendar.MILLISECOND, 0);
this.add(Calendar.DATE, 1);
break;
case CustomLog4jAppender.TOP_OF_WEEK:
this.set(Calendar.DAY_OF_WEEK, getFirstDayOfWeek());
this.set(Calendar.HOUR_OF_DAY, 0);
this.set(Calendar.MINUTE, 0);
this.set(Calendar.SECOND, 0);
this.set(Calendar.MILLISECOND, 0);
this.add(Calendar.WEEK_OF_YEAR, 1);
break;
case CustomLog4jAppender.TOP_OF_MONTH:
this.set(Calendar.DATE, 1);
this.set(Calendar.HOUR_OF_DAY, 0);
this.set(Calendar.MINUTE, 0);
this.set(Calendar.SECOND, 0);
this.set(Calendar.MILLISECOND, 0);
this.add(Calendar.MONTH, 1);
break;
default:
throw new IllegalStateException("Unknown periodicity type.");
}
return getTime();
}
}
}
And use this properties in your log4j config file:
log4j.appender.[appenderName]=com.example.package.CustomLog4jAppender
log4j.appender.[appenderName].File=/logs/app-daily.log
log4j.appender.[appenderName].Append=true
log4j.appender.[appenderName].encoding=UTF-8
log4j.appender.[appenderName].layout=org.apache.log4j.EnhancedPatternLayout
log4j.appender.[appenderName].layout.ConversionPattern=%-5.5p %d %C{1.} - %m%n
log4j.appender.[appenderName].DatePattern='.'yyyy-MM-dd
log4j.appender.[appenderName].MaxNumberOfDays=7
log4j.appender.[appenderName].CompressBackups=true
From here:
The function
ord()
gets the int value of the char. And in case you want to convert back after playing with the number, functionchr()
does the trick.
>>> ord('a')
97
>>> chr(97)
'a'
>>> chr(ord('a') + 3)
'd'
>>>
In Python 2, there was also the unichr
function, returning the Unicode character whose ordinal is the unichr
argument:
>>> unichr(97)
u'a'
>>> unichr(1234)
u'\u04d2'
In Python 3 you can use chr
instead of unichr
.
If you're looking for more than a True/False, you'd be best suited to use the re module, like:
import re
search="please help me out"
fullstring="please help me out so that I could solve this"
s = re.search(search,fullstring)
print(s.group())
s.group()
will return the string "please help me out".
These two may confusing you:
head
Pointing to named references a branch recently submitted. Unless you use the package reference , heads typically stored in $ GIT_DIR/refs/heads/.
HEAD
Current branch, or your working tree is usually generated from the tree HEAD is pointing to. HEAD must point to a head, except you are using a detached HEAD.
Have a read of the urllib Missing Manual. Pulled from there is the following simple example of a POST request.
url = 'http://myserver/post_service'
data = urllib.urlencode({'name' : 'joe', 'age' : '10'})
req = urllib2.Request(url, data)
response = urllib2.urlopen(req)
print response.read()
As suggested by @Michael Kent do consider requests, it's great.
EDIT: This said, I do not know why passing data to urlopen() does not result in a POST request; It should. I suspect your server is redirecting, or misbehaving.
I know this message is old and was a long time ago - but i also had problem with with the exact same error:
the problem I had was relates to the fact the encrypted text was converted to String and to byte[]
when trying to DECRYPT it.
private Key getAesKey() throws Exception {
return new SecretKeySpec(Arrays.copyOf(key.getBytes("UTF-8"), 16), "AES");
}
private Cipher getMutual() throws Exception {
Cipher cipher = Cipher.getInstance("AES");
return cipher;// cipher.doFinal(pass.getBytes());
}
public byte[] getEncryptedPass(String pass) throws Exception {
Cipher cipher = getMutual();
cipher.init(Cipher.ENCRYPT_MODE, getAesKey());
byte[] encrypted = cipher.doFinal(pass.getBytes("UTF-8"));
return encrypted;
}
public String getDecryptedPass(byte[] encrypted) throws Exception {
Cipher cipher = getMutual();
cipher.init(Cipher.DECRYPT_MODE, getAesKey());
String realPass = new String(cipher.doFinal(encrypted));
return realPass;
}
I'm writing a script to run cmd-line scripts. ( Because in some cases, there just is no viable substitute for a Linux command -- such as the case of rsync. )
What I really wanted was to use the default python logging mechanism in every case where it was possible to do so, but to still capture any error when something went wrong that was unanticipated.
This code seems to do the trick. It may not be particularly elegant or efficient ( although it doesn't use string+=string, so at least it doesn't have that particular potential bottle- neck ). I'm posting it in case it gives someone else any useful ideas.
import logging
import os, sys
import datetime
# Get name of module, use as application name
try:
ME=os.path.split(__file__)[-1].split('.')[0]
except:
ME='pyExec_'
LOG_IDENTIFIER="uuu___( o O )___uuu "
LOG_IDR_LENGTH=len(LOG_IDENTIFIER)
class PyExec(object):
# Use this to capture all possible error / output to log
class SuperTee(object):
# Original reference: http://mail.python.org/pipermail/python-list/2007-May/442737.html
def __init__(self, name, mode):
self.fl = open(name, mode)
self.fl.write('\n')
self.stdout = sys.stdout
self.stdout.write('\n')
self.stderr = sys.stderr
sys.stdout = self
sys.stderr = self
def __del__(self):
self.fl.write('\n')
self.fl.flush()
sys.stderr = self.stderr
sys.stdout = self.stdout
self.fl.close()
def write(self, data):
# If the data to write includes the log identifier prefix, then it is already formatted
if data[0:LOG_IDR_LENGTH]==LOG_IDENTIFIER:
self.fl.write("%s\n" % data[LOG_IDR_LENGTH:])
self.stdout.write(data[LOG_IDR_LENGTH:])
# Otherwise, we can give it a timestamp
else:
timestamp=str(datetime.datetime.now())
if 'Traceback' == data[0:9]:
data='%s: %s' % (timestamp, data)
self.fl.write(data)
else:
self.fl.write(data)
self.stdout.write(data)
def __init__(self, aName, aCmd, logFileName='', outFileName=''):
# Using name for 'logger' (context?), which is separate from the module or the function
baseFormatter=logging.Formatter("%(asctime)s \t %(levelname)s \t %(name)s:%(module)s:%(lineno)d \t %(message)s")
errorFormatter=logging.Formatter(LOG_IDENTIFIER + "%(asctime)s \t %(levelname)s \t %(name)s:%(module)s:%(lineno)d \t %(message)s")
if logFileName:
# open passed filename as append
fl=logging.FileHandler("%s.log" % aName)
else:
# otherwise, use log filename as a one-time use file
fl=logging.FileHandler("%s.log" % aName, 'w')
fl.setLevel(logging.DEBUG)
fl.setFormatter(baseFormatter)
# This will capture stdout and CRITICAL and beyond errors
if outFileName:
teeFile=PyExec.SuperTee("%s_out.log" % aName)
else:
teeFile=PyExec.SuperTee("%s_out.log" % aName, 'w')
fl_out=logging.StreamHandler( teeFile )
fl_out.setLevel(logging.CRITICAL)
fl_out.setFormatter(errorFormatter)
# Set up logging
self.log=logging.getLogger('pyExec_main')
log=self.log
log.addHandler(fl)
log.addHandler(fl_out)
print "Test print statement."
log.setLevel(logging.DEBUG)
log.info("Starting %s", ME)
log.critical("Critical.")
# Caught exception
try:
raise Exception('Exception test.')
except Exception,e:
log.exception(str(e))
# Uncaught exception
a=2/0
PyExec('test_pyExec',None)
Obviously, if you're not as subject to whimsy as I am, replace LOG_IDENTIFIER with another string that you're not like to ever see someone write to a log.
df %>% group_by(A,B) %>% slice(which.max(value))
After, or in-between your text, use the
(non-breaking space) extended HTML character.
EG 1 :
This is an example paragraph.
This is the next line.
You can set the context to be poster
or manually set fig_size
.
import numpy as np
import seaborn as sns
import matplotlib.pyplot as plt
np.random.seed(0)
n, p = 40, 8
d = np.random.normal(0, 2, (n, p))
d += np.log(np.arange(1, p + 1)) * -5 + 10
# plot
sns.set_style('ticks')
fig, ax = plt.subplots()
# the size of A4 paper
fig.set_size_inches(11.7, 8.27)
sns.violinplot(data=d, inner="points", ax=ax)
sns.despine()
fig.savefig('example.png')
you can set the PictureBox
BackColor
proprty to Transparent
Any kind of data your computer stores and processes is in its most basic representation a row of bits. The way those bits are interpreted is done through data types. Data types can be primitive or complex. Primitive data types are - for instance - int or double. They have a specific length and a specific way of being interpreted. In the case of an integer, usually the first bit is used for the sign, the others are used for the value.
Complex data types can be combinations of primitive and other complex data types and are called "Class" in Java.
You can define the complex data type PeopleName consisting of two Strings called first and last name. Each String in Java is another complex data type. Strings in return are (probably) implemented using the primitive data type char for which Java knows how many bits they take to store and how to interpret them.
When you create an instance of a data type, you get an object and your computers reserves some memory for it and remembers its location and the name of that instance. An instance of PeopleName in memory will take up the space of the two String variables plus a bit more for bookkeeping. An integer takes up 32 bits in Java.
Complex data types can have methods assigned to them. Methods can perform actions on their arguments or on the instance of the data type you call this method from. If you have two instances of PeopleName called p1 and p2 and you call a method p1.getFirstName(), it usually returns the first name of the first person but not the second person's.
Here is an extension of Roberto14's answer that does the following:
THIS WILL ONLY ALLOW IMAGES
Checks if FileReader is available and falls back to extension checking if it is not available.
Gives an error alert if not an image
If it is an image it loads a preview
** You should still do server side validation, this is more a convenience for the end user than anything else. But it is handy!
<form id="myform">
<input type="file" id="myimage" onchange="readURL(this)" />
<img id="preview" src="#" alt="Image Preview" />
</form>
<script>
function readURL(input) {
if (window.FileReader && window.Blob) {
if (input.files && input.files[0]) {
var reader = new FileReader();
reader.onload = function (e) {
var img = new Image();
img.onload = function() {
var preview = document.getElementById('preview');
preview.src = e.target.result;
};
img.onerror = function() {
alert('error');
input.value = '';
};
img.src = e.target.result;
}
reader.readAsDataURL(input.files[0]);
}
}
else {
var ext = input.value.split('.');
ext = ext[ext.length-1].toLowerCase();
var arrayExtensions = ['jpg' , 'jpeg', 'png', 'bmp', 'gif'];
if (arrayExtensions.lastIndexOf(ext) == -1) {
alert('error');
input.value = '';
}
else {
var preview = document.getElementById('preview');
preview.setAttribute('alt', 'Browser does not support preview.');
}
}
}
</script>
Well, you have to iterate through your abstract type Foo and that depends on the methods available on that object. You don't have to loop through the ArrayList because this object grows automatically in Java. (Don't confuse it with an array in other programming languages)
Recommended reading. Lists in the Java Tutorial
git checkout .
will works otherwise it won't workI am using lambda with Zappa; I am sending data with POST in json format:
My code for basic_lambda_pure.py is:
import time
import requests
import json
def my_handler(event, context):
print("Received event: " + json.dumps(event, indent=2))
print("Log stream name:", context.log_stream_name)
print("Log group name:", context.log_group_name)
print("Request ID:", context.aws_request_id)
print("Mem. limits(MB):", context.memory_limit_in_mb)
# Code will execute quickly, so we add a 1 second intentional delay so you can see that in time remaining value.
print("Time remaining (MS):", context.get_remaining_time_in_millis())
if event["httpMethod"] == "GET":
hub_mode = event["queryStringParameters"]["hub.mode"]
hub_challenge = event["queryStringParameters"]["hub.challenge"]
hub_verify_token = event["queryStringParameters"]["hub.verify_token"]
return {'statusCode': '200', 'body': hub_challenge, 'headers': 'Content-Type': 'application/json'}}
if event["httpMethod"] == "post":
token = "xxxx"
params = {
"access_token": token
}
headers = {
"Content-Type": "application/json"
}
_data = {"recipient": {"id": 1459299024159359}}
_data.update({"message": {"text": "text"}})
data = json.dumps(_data)
r = requests.post("https://graph.facebook.com/v2.9/me/messages",params=params, headers=headers, data=data, timeout=2)
return {'statusCode': '200', 'body': "ok", 'headers': {'Content-Type': 'application/json'}}
I got the next json response:
{
"resource": "/",
"path": "/",
"httpMethod": "POST",
"headers": {
"Accept": "*/*",
"Accept-Encoding": "deflate, gzip",
"CloudFront-Forwarded-Proto": "https",
"CloudFront-Is-Desktop-Viewer": "true",
"CloudFront-Is-Mobile-Viewer": "false",
"CloudFront-Is-SmartTV-Viewer": "false",
"CloudFront-Is-Tablet-Viewer": "false",
"CloudFront-Viewer-Country": "US",
"Content-Type": "application/json",
"Host": "ox53v9d8ug.execute-api.us-east-1.amazonaws.com",
"Via": "1.1 f1836a6a7245cc3f6e190d259a0d9273.cloudfront.net (CloudFront)",
"X-Amz-Cf-Id": "LVcBZU-YqklHty7Ii3NRFOqVXJJEr7xXQdxAtFP46tMewFpJsQlD2Q==",
"X-Amzn-Trace-Id": "Root=1-59ec25c6-1018575e4483a16666d6f5c5",
"X-Forwarded-For": "69.171.225.87, 52.46.17.84",
"X-Forwarded-Port": "443",
"X-Forwarded-Proto": "https",
"X-Hub-Signature": "sha1=10504e2878e56ea6776dfbeae807de263772e9f2"
},
"queryStringParameters": null,
"pathParameters": null,
"stageVariables": null,
"requestContext": {
"path": "/dev",
"accountId": "001513791584",
"resourceId": "i6d2tyihx7",
"stage": "dev",
"requestId": "d58c5804-b6e5-11e7-8761-a9efcf8a8121",
"identity": {
"cognitoIdentityPoolId": null,
"accountId": null,
"cognitoIdentityId": null,
"caller": null,
"apiKey": "",
"sourceIp": "69.171.225.87",
"accessKey": null,
"cognitoAuthenticationType": null,
"cognitoAuthenticationProvider": null,
"userArn": null,
"userAgent": null,
"user": null
},
"resourcePath": "/",
"httpMethod": "POST",
"apiId": "ox53v9d8ug"
},
"body": "eyJvYmplY3QiOiJwYWdlIiwiZW50cnkiOlt7ImlkIjoiMTA3OTk2NDk2NTUxMDM1IiwidGltZSI6MTUwODY0ODM5MDE5NCwibWVzc2FnaW5nIjpbeyJzZW5kZXIiOnsiaWQiOiIxNDAzMDY4MDI5ODExODY1In0sInJlY2lwaWVudCI6eyJpZCI6IjEwNzk5NjQ5NjU1MTAzNSJ9LCJ0aW1lc3RhbXAiOjE1MDg2NDgzODk1NTUsIm1lc3NhZ2UiOnsibWlkIjoibWlkLiRjQUFBNHo5RmFDckJsYzdqVHMxZlFuT1daNXFaQyIsInNlcSI6MTY0MDAsInRleHQiOiJob2xhIn19XX1dfQ==",
"isBase64Encoded": true
}
my data was on body key, but is code64 encoded, How can I know this? I saw the key isBase64Encoded
I copy the value for body key and decode with This tool and "eureka", I get the values.
I hope this help you. :)
Use a virtual machine. Start fresh as often as you want, and stop doing these hacks that may or may not simulate a clean machine.
Seriously, use VMWare or VirtualPC.
There are probably a few ways to do this, but one approach would be to merge the two dataframes together on the filename/m column, then populate the column 'n' from the right dataframe if a match was found. The n_x, n_y in the code refer to the left/right dataframes in the merge.
In[100] : df = pd.merge(df1, df2, how='left', on=['filename','m'])
In[101] : df
Out[101]:
filename m n_x n_y
0 test0.dat 12 None NaN
1 test2.dat 13 None 16
In[102] : df['n'] = df['n_y'].fillna(df['n_x'])
In[103] : df = df.drop(['n_x','n_y'], axis=1)
In[104] : df
Out[104]:
filename m n
0 test0.dat 12 None
1 test2.dat 13 16
I've recently fixed this issue and in my instance it was a file that was compressed that I was trying to read. Check the file format first. Then check that the contents are what the extension refers to.
How about playing with these two properties?
disableClose: boolean - Whether the user can use escape or clicking on the backdrop to close the modal.
hasBackdrop: boolean - Whether the dialog has a backdrop.
What you need is xml comments - basically, they follow this syntax (as vaguely described by Solmead):
C#
///<summary>
///This is a description of my function.
///</summary>
string myFunction() {
return "blah";
}
VB
'''<summary>
'''This is a description of my function.
'''</summary>
Function myFunction() As String
Return "blah"
End Function
Yes.
However, if you need to use Application.DoEvents
, this is mostly an indication of a bad application design. Perhaps you'd like to do some work in a separate thread instead?
I am facing same Issue after run my build.
The error message tell us to specify your goal
So I specify the goal Ex:-test.
Now It's running fine
As per user667073 suggested, except reordering the backslash replacement first, and fixing the quote replacement
escape = function (str) {
return str
.replace(/[\\]/g, '\\\\')
.replace(/[\"]/g, '\\\"')
.replace(/[\/]/g, '\\/')
.replace(/[\b]/g, '\\b')
.replace(/[\f]/g, '\\f')
.replace(/[\n]/g, '\\n')
.replace(/[\r]/g, '\\r')
.replace(/[\t]/g, '\\t');
};
Faced the same issue. To solve it,
$ sdk install gradle
using the package manager or $ brew install gradle
for mac. You might need to first install brew if not yet. your composer.phar should be placed in above way.
Simply you can find index name and column names of a particular table using below command
SP_HELPINDEX 'tablename'
It work's for me
This is how I implemented my strcmp: it works like this: it compares first letter of the two strings, if it is identical, it continues to the next letter. If not, it returns the corresponding value. It is very simple and easy to understand: #include
//function declaration:
int strcmp(char string1[], char string2[]);
int main()
{
char string1[]=" The San Antonio spurs";
char string2[]=" will be champins again!";
//calling the function- strcmp
printf("\n number returned by the strcmp function: %d", strcmp(string1, string2));
getch();
return(0);
}
/**This function calculates the dictionary value of the string and compares it to another string.
it returns a number bigger than 0 if the first string is bigger than the second
it returns a number smaller than 0 if the second string is bigger than the first
input: string1, string2
output: value- can be 1, 0 or -1 according to the case*/
int strcmp(char string1[], char string2[])
{
int i=0;
int value=2; //this initialization value could be any number but the numbers that can be returned by the function
while(value==2)
{
if (string1[i]>string2[i])
{
value=1;
}
else if (string1[i]<string2[i])
{
value=-1;
}
else
{
i++;
}
}
return(value);
}
I found a tool "webchk” written in Python. Returns a status code for a list of urls. https://pypi.org/project/webchk/
Output looks like this:
? webchk -i ./dxieu.txt | grep '200'
http://salesforce-case-status.dxi.eu/login ... 200 OK (0.108)
https://support.dxi.eu/hc/en-gb ... 200 OK (0.389)
https://support.dxi.eu/hc/en-gb ... 200 OK (0.401)
Hope that helps!
If you want to grab the query parameter value in the URL, follow below code pieces
//url.localhost:8888/p?tagid=1234
req.query.tagid
OR
req.param.tagid
If you want to grab the URL parameter using Express param function
Express param function to grab a specific parameter. This is considered middleware and will run before the route is called.
This can be used for validations or grabbing important information about item.
An example for this would be:
// parameter middleware that will run before the next routes
app.param('tagid', function(req, res, next, tagid) {
// check if the tagid exists
// do some validations
// add something to the tagid
var modified = tagid+ '123';
// save name to the request
req.tagid= modified;
next();
});
// http://localhost:8080/api/tags/98
app.get('/api/tags/:tagid', function(req, res) {
// the tagid was found and is available in req.tagid
res.send('New tag id ' + req.tagid+ '!');
});
Element.prototype.getA = function (a) {
if (a) {
return this.getAttribute(a);
} else {
var o = {};
for(let a of this.attributes){
o[a.name]=a.value;
}
return o;
}
}
having <div id="mydiv" a='1' b='2'>...</div>
can use
mydiv.getA() // {id:"mydiv",a:'1',b:'2'}
You can use SVGKit for example.
1) Integrate it according to instructions. Drag&dropping the .framework file is fast and easy.
2) Make sure you have an Objective-C to Swift bridge file bridging-header.h with import code in it:
#import <SVGKit/SVGKit.h>
#import <SVGKit/SVGKImage.h>
3) Use the framework like this, assuming that dataFromInternet is NSData, previously downloaded from network:
let anSVGImage: SVGKImage = SVGKImage(data: dataFromInternet)
myIUImageView.image = anSVGImage.UIImage
The framework also allows to init an SVGKImage from other different sources, for example it can download image for you when you provide it with URL. But in my case it was crashing in case of unreachable url, so it turned out to be better to manage networking by myself. More info on it here.
Bitcode (iOS, watchOS)
Bitcode is an intermediate representation of a compiled program. Apps you upload to iTunes Connect that contain bitcode will be compiled and linked on the App Store. Including bitcode will allow Apple to re-optimize your app binary in the future without the need to submit a new version of your app to the store.
Basically this concept is somewhat similar to java where byte code is run on different JVM's and in this case the bitcode is placed on iTune store and instead of giving the intermediate code to different platforms(devices) it provides the compiled code which don't need any virtual machine to run.
Thus we need to create the bitcode once and it will be available for existing or coming devices. It's the Apple's headache to compile an make it compatible with each platform they have.
Devs don't have to make changes and submit the app again to support new platforms.
Let's take the example of iPhone 5s when apple introduced x64
chip in it. Although x86
apps were totally compatible with x64
architecture but to fully utilise the x64
platform the developer has to change the architecture or some code. Once s/he's done the app is submitted to the app store for the review.
If this bitcode concept was launched earlier then we the developers doesn't have to make any changes to support the x64
bit architecture.
Install Python opencv
pip install opencv-python
and instead of using ..
cv2.SIFT()
Use
cv2.SIFT_create()
working code using opencv-python below
import cv2
img1 = cv2.imread('yourimg.png',0)
sift = cv2.SIFT_create()
kp1, des1 = sift.detectAndCompute(img1,None) #keypoint and descriptors
...
you can also install "opencv-contrib-python" and use "cv2.xfeatures2d.SIFT_create()" but that is secondary and up to you.. working code using the python package opencv-contrib-python
import cv2
img1 = cv2.imread('yourimg.png',0)
sift = cv2.xfeatures2d.SIFT_create()
kp1, des1 = sift.detectAndCompute(img1,None) #keypoint and descriptors
Thanks
Scikit-Learn provides a confusion_matrix
function
from sklearn.metrics import confusion_matrix
y_actu = [2, 0, 2, 2, 0, 1, 1, 2, 2, 0, 1, 2]
y_pred = [0, 0, 2, 1, 0, 2, 1, 0, 2, 0, 2, 2]
confusion_matrix(y_actu, y_pred)
which output a Numpy array
array([[3, 0, 0],
[0, 1, 2],
[2, 1, 3]])
But you can also create a confusion matrix using Pandas:
import pandas as pd
y_actu = pd.Series([2, 0, 2, 2, 0, 1, 1, 2, 2, 0, 1, 2], name='Actual')
y_pred = pd.Series([0, 0, 2, 1, 0, 2, 1, 0, 2, 0, 2, 2], name='Predicted')
df_confusion = pd.crosstab(y_actu, y_pred)
You will get a (nicely labeled) Pandas DataFrame:
Predicted 0 1 2
Actual
0 3 0 0
1 0 1 2
2 2 1 3
If you add margins=True
like
df_confusion = pd.crosstab(y_actu, y_pred, rownames=['Actual'], colnames=['Predicted'], margins=True)
you will get also sum for each row and column:
Predicted 0 1 2 All
Actual
0 3 0 0 3
1 0 1 2 3
2 2 1 3 6
All 5 2 5 12
You can also get a normalized confusion matrix using:
df_conf_norm = df_confusion / df_confusion.sum(axis=1)
Predicted 0 1 2
Actual
0 1.000000 0.000000 0.000000
1 0.000000 0.333333 0.333333
2 0.666667 0.333333 0.500000
You can plot this confusion_matrix using
import matplotlib.pyplot as plt
def plot_confusion_matrix(df_confusion, title='Confusion matrix', cmap=plt.cm.gray_r):
plt.matshow(df_confusion, cmap=cmap) # imshow
#plt.title(title)
plt.colorbar()
tick_marks = np.arange(len(df_confusion.columns))
plt.xticks(tick_marks, df_confusion.columns, rotation=45)
plt.yticks(tick_marks, df_confusion.index)
#plt.tight_layout()
plt.ylabel(df_confusion.index.name)
plt.xlabel(df_confusion.columns.name)
plot_confusion_matrix(df_confusion)
Or plot normalized confusion matrix using:
plot_confusion_matrix(df_conf_norm)
You might also be interested by this project https://github.com/pandas-ml/pandas-ml and its Pip package https://pypi.python.org/pypi/pandas_ml
With this package confusion matrix can be pretty-printed, plot. You can binarize a confusion matrix, get class statistics such as TP, TN, FP, FN, ACC, TPR, FPR, FNR, TNR (SPC), LR+, LR-, DOR, PPV, FDR, FOR, NPV and some overall statistics
In [1]: from pandas_ml import ConfusionMatrix
In [2]: y_actu = [2, 0, 2, 2, 0, 1, 1, 2, 2, 0, 1, 2]
In [3]: y_pred = [0, 0, 2, 1, 0, 2, 1, 0, 2, 0, 2, 2]
In [4]: cm = ConfusionMatrix(y_actu, y_pred)
In [5]: cm.print_stats()
Confusion Matrix:
Predicted 0 1 2 __all__
Actual
0 3 0 0 3
1 0 1 2 3
2 2 1 3 6
__all__ 5 2 5 12
Overall Statistics:
Accuracy: 0.583333333333
95% CI: (0.27666968568210581, 0.84834777019156982)
No Information Rate: ToDo
P-Value [Acc > NIR]: 0.189264302376
Kappa: 0.354838709677
Mcnemar's Test P-Value: ToDo
Class Statistics:
Classes 0 1 2
Population 12 12 12
P: Condition positive 3 3 6
N: Condition negative 9 9 6
Test outcome positive 5 2 5
Test outcome negative 7 10 7
TP: True Positive 3 1 3
TN: True Negative 7 8 4
FP: False Positive 2 1 2
FN: False Negative 0 2 3
TPR: (Sensitivity, hit rate, recall) 1 0.3333333 0.5
TNR=SPC: (Specificity) 0.7777778 0.8888889 0.6666667
PPV: Pos Pred Value (Precision) 0.6 0.5 0.6
NPV: Neg Pred Value 1 0.8 0.5714286
FPR: False-out 0.2222222 0.1111111 0.3333333
FDR: False Discovery Rate 0.4 0.5 0.4
FNR: Miss Rate 0 0.6666667 0.5
ACC: Accuracy 0.8333333 0.75 0.5833333
F1 score 0.75 0.4 0.5454545
MCC: Matthews correlation coefficient 0.6831301 0.2581989 0.1690309
Informedness 0.7777778 0.2222222 0.1666667
Markedness 0.6 0.3 0.1714286
Prevalence 0.25 0.25 0.5
LR+: Positive likelihood ratio 4.5 3 1.5
LR-: Negative likelihood ratio 0 0.75 0.75
DOR: Diagnostic odds ratio inf 4 2
FOR: False omission rate 0 0.2 0.4285714
I noticed that a new Python library about Confusion Matrix named PyCM is out: maybe you can have a look.
I´ve had experienced this problem, the intent
is not null but the information sent via this intent
is not received in onActionActivit()
This is a better solution using getContentResolver() :
private Uri imageUri;
private ImageView myImageView;
private Bitmap thumbnail;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
...
...
...
myImageview = (ImageView) findViewById(R.id.pic);
values = new ContentValues();
values.put(MediaStore.Images.Media.TITLE, "MyPicture");
values.put(MediaStore.Images.Media.DESCRIPTION, "Photo taken on " + System.currentTimeMillis());
imageUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(intent, PICTURE_RESULT);
}
the onActivityResult()
get a bitmap stored by getContentResolver() :
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_CODE_TAKE_PHOTO && resultCode == RESULT_OK) {
Bitmap bitmap;
try {
bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), imageUri);
myImageView.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Check my example in github:
Sub FnGetSheetsName()
Dim mainworkBook As Workbook
Set mainworkBook = ActiveWorkbook
For i = 1 To mainworkBook.Sheets.Count
'Either we can put all names in an array , here we are printing all the names in Sheet 2
mainworkBook.Sheets("Sheet2").Range("A" & i) = mainworkBook.Sheets(i).Name
Next i
End Sub
android:editable="false"
should work, but it is deprecated, you should be using android:inputType="none"
instead.
Alternatively, if you want to do it in the code you could do this :
EditText mEdit = (EditText) findViewById(R.id.yourid);
mEdit.setEnabled(false);
This is also a viable alternative :
EditText mEdit = (EditText) findViewById(R.id.yourid);
mEdit.setKeyListener(null);
If you're going to make your EditText
non-editable, may I suggest using the TextView
widget instead of the EditText
, since using a EditText seems kind of pointless in that case.
EDIT: Altered some information since I've found that android:editable
is deprecated, and you should use android:inputType="none"
, but there is a bug about it on android code; So please check this.
I think the $() syntax is easier to read...
variable=$(ps -ef | grep "port 10 -" | grep -v "grep port 10 -"| awk '{printf "%s", $12}')
But the real issue is probably that $12
should not be qouted with ""
Edited since the question was changed, This returns valid data, but it is not clear what the expected output of ps -ef
is and what is expected in variable.
See the (quite) recent answer on the matplotlib repository, in which the following solution is suggested:
If you want to set the xticklabels:
ax.set_xticks([1,4,5])
ax.set_xticklabels([1,4,5], fontsize=12)
If you want to only increase the fontsize of the xticklabels, using the default values and locations (which is something I personally often need and find very handy):
ax.tick_params(axis="x", labelsize=12)
To do it all at once:
plt.setp(ax.get_xticklabels(), fontsize=12, fontweight="bold",
horizontalalignment="left")`
Convert binary file to base64 & vice versa. Prove in python 3.5.2
import base64
read_file = open('/tmp/newgalax.png', 'rb')
data = read_file.read()
b64 = base64.b64encode(data)
print (b64)
# Save file
decode_b64 = base64.b64decode(b64)
out_file = open('/tmp/out_newgalax.png', 'wb')
out_file.write(decode_b64)
# Test in python 3.5.2
"jdbc:mysql://localhost"
From the oracle docs..
jdbc:mysql://[host][,failoverhost...]
[:port]/[database]
[?propertyName1][=propertyValue1]
[&propertyName2][=propertyValue2]
host:port is the host name and port number of the computer hosting your database. If not specified, the default values of host and port are 127.0.0.1 and 3306, respectively.
database is the name of the database to connect to. If not specified, a connection is made with no default database.
failover is the name of a standby database (MySQL Connector/J supports failover).
propertyName=propertyValue represents an optional, ampersand-separated list of properties. These attributes enable you to instruct MySQL Connector/J to perform various tasks.
I've put in what x4u said. Eclipse wanted a try catch block around it so I let it generate it for me.
try {
System.in.read();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
It can probably have all sorts of bells and whistles on it but I think for beginners that want a command line window not quitting this should be fine.
Also I don't know how common this is (this is my first time making jar files), but it wouldn't run by itself, only via a bat file.
java.exe -jar mylibrary.jar
The above is what the bat file had in the same folder. Seems to be an install issue.
Eclipse tutorial came from: http://eclipsetutorial.sourceforge.net/index.html
Some of the answer also came from: Oracle Thread
Given the already proposed options the easiest solution without finding a parent:
var parent = document.createElement("div");
var child = parent.appendChild(document.createElement("a"));
var span = document.createElement("span");
// for IE
if("replaceNode" in child)
child.replaceNode(span);
// for other browsers
if("replaceWith" in child)
child.replaceWith(span);
console.log(parent.outerHTML);
You need convert list
to numpy array
and then reshape
:
df = pd.DataFrame(np.array(my_list).reshape(3,3), columns = list("abc"))
print (df)
a b c
0 1 2 3
1 4 5 6
2 7 8 9
I know this is an old question, but I just wanted to post this bit of code as I could not find a simple gem to do just this task for me.
module QueryParams
def self.encode(value, key = nil)
case value
when Hash then value.map { |k,v| encode(v, append_key(key,k)) }.join('&')
when Array then value.map { |v| encode(v, "#{key}[]") }.join('&')
when nil then ''
else
"#{key}=#{CGI.escape(value.to_s)}"
end
end
private
def self.append_key(root_key, key)
root_key.nil? ? key : "#{root_key}[#{key.to_s}]"
end
end
Rolled up as gem here: https://github.com/simen/queryparams
If its SQL Server you can do it on the column properties within design view
Try this?:
ALTER TABLE dbo.TableName
ADD CONSTRAINT DF_TableName_ColumnName
DEFAULT '01/01/2000' FOR ColumnName
pre-increment and post increment are equivalent if not in an expression
int j =0;
int r=0
for(int v = 0; v<10; ++v) {
++r;
j++;
System.out.println(j+" "+r);
}
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
Write below code in your MainActivity.java file instead of your code.
public class MainActivity extends Activity implements OnClickListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button mBtn1 = (Button) findViewById(R.id.mBtn1);
mBtn1.setOnClickListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
@Override
public void onClick(View v) {
Log.i("clicks","You Clicked B1");
Intent i=new Intent(MainActivity.this, MainActivity2.class);
startActivity(i);
}
}
And Declare MainActivity2 into your Androidmanifest.xml file using below code.
<activity
android:name=".MainActivity2"
android:label="@string/title_activity_main">
</activity>
You can find what is the php.ini file used:
Next, you can find the information in the Loaded Configuration file (so here it's /user/local/etc/php/php.ini)
Sometimes, you have indicated (none), in this case you just have to put your custom php.ini that you can find here: http://git.php.net/?p=php-src.git;a=blob;f=php.ini-production;hb=HEAD
I hope this answer will help.
Just to clear up... or sum up...
nchar
and nvarchar
can store Unicode characters.char
and varchar
cannot store Unicode characters.char
and nchar
are fixed-length which will reserve storage space for number of characters you specify even if you don't use up all that space.varchar
and nvarchar
are variable-length which will only use up spaces for the characters you store. It will not reserve storage like char
or nchar
.nchar
and nvarchar
will take up twice as much storage space, so it may be wise to use them only if you need Unicode support.
There is no cross-browser way of styling option elements, certainly not to the extent of your second screenshot. You might be able to make them bold, and set the font-size, but that will be about it...
Seems like the second column is set as a unique index. If you dont need that remove it and your errors will go away. Possibly you added the index by mistake and thats why you are seeing the errors today and werent seeing them yesterday
You can Enable DBMS_OUTPUT and set the buffer size. The buffer size can be between 1 and 1,000,000.
dbms_output.enable(buffer_size IN INTEGER DEFAULT 20000);
exec dbms_output.enable(1000000);
Check this
EDIT
As per the comment posted by Frank and Mat, you can also enable it with Null
exec dbms_output.enable(NULL);
buffer_size : Upper limit, in bytes, the amount of buffered information. Setting buffer_size to NULL specifies that there should be no limit. The maximum size is 1,000,000, and the minimum is 2,000 when the user specifies buffer_size (NOT NULL).
As a temporary tweak ( not permanent )
On Mac you would need to create your own shortcuts ..
Its easy. my set:
CMD + Wheel-up for increase font size
CMD + Wheel-down for decreasing font size
Prefernces => Keymap => Increase Font size/decrease Font size/Reset Font size
Good luck,'.
Use Regular Expressions, if you are going to somehow extend method's functionality.
None of above answers worked for me in MySQL, the following query worked though:
UPDATE
Table1 t1
JOIN
Table2 t2 ON t1.ID=t2.ID
SET
t1.value =t2.value
WHERE
...
@Guffa 's answer is excellent, just point out that maybe is cleaner with an IF statement
select count(IF(Position = 'Manager', 1, NULL)) as ManagerCount
from ...
I personally like new lines at the end of source code files.
It may have its origin with Linux or all UNIX systems for that matter. I remember there compilation errors (gcc if I'm not mistaken) because source code files did not end with an empty new line. Why was it made this way one is left to wonder.
Generally, a parameter is a string value that is most commonly known for being sent from the client to the server (e.g. a form post) and retrieved from the servlet request. The frustrating exception to this is ServletContext initial parameters which are string parameters that are configured in web.xml and exist on the server.
An attribute is a server variable that exists within a specified scope i.e.:
application
, available for the life of the entire applicationsession
, available for the life of the sessionrequest
, only available for the life of the requestpage
(JSP only), available for the current JSP page only Get rid of the values
keyword and the parens. You can see an example here.
This is basic INSERT syntax:
INSERT INTO "table_name" ("column1", "column2", ...)
VALUES ("value1", "value2", ...);
This is the INSERT SELECT syntax:
INSERT INTO "table1" ("column1", "column2", ...)
SELECT "column3", "column4", ...
FROM "table2";
just like this :
global $wpdb;
$table_name='lorem_ipsum';
$results = $wpdb->get_results("SELECT * FROM $table_name ORDER BY ID DESC LIMIT 1");
print_r($results[0]->id);
simply your selecting all the rows then order them DESC by id , and displaying only the first
Parcelable vs Serializable I refer these two.
For Java and Kotlin
1) Java
Serializable, the Simplicity
What is Serializable?
Serializable is a standard Java interface. It is not a part of the Android SDK. Its simplicity is its beauty. Just by implementing this interface your POJO will be ready to jump from one Activity to another.
public class TestModel implements Serializable {
String name;
public TestModel(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
The beauty of serializable is that you only need to implement the Serializable interface on a class and its children. It is a marker interface, meaning that there is no method to implement, Java will simply do its best effort to serialize it efficiently.
The problem with this approach is that reflection is used and it is a slow process. This mechanism also tends to create a lot of temporary objects and cause quite a bit of garbage collection.
Parcelable, The Speed
What is Parcelable?
Parcelable is another interface. Despite its rival (Serializable in case you forgot), it is a part of the Android SDK. Now, Parcelable was specifically designed in such a way that there is no reflection when using it. That is because we are being really explicit for the serialization process.
public class TestModel implements Parcelable {
String name;
public TestModel(String name, String id) {
this.name = name;
}
protected TestModel(Parcel in) {
this.name = in.readString();
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(this.name);
}
public static final Parcelable.Creator<TestModel> CREATOR = new Parcelable.Creator<TestModel>() {
@Override
public TestModel createFromParcel(Parcel source) {
return new TestModel(source);
}
@Override
public TestModel[] newArray(int size) {
return new TestModel[size];
}
};
}
Now, The winner is
The results of the tests conducted by Philippe Breault show that Parcelable is more than 10x faster than Serializable. Some other Google engineers stand behind this statement as well.
According to them, the default Serializable approach is slower than Parcelable. And here we have an agreement between the two parties! BUT, it is unfair to compare these two at all! Because with Parcelable we are actually writing custom code. Code specifically created for that one POJO. Thus, no garbage is created and the results are better. But with the default Serializable approach, we rely on the automatic serialization process of Java. The process is apparently not custom at all and creates lots of garbage! Thus, the worse results.
Stop Stop!!!!, Before making decision
Now, there is another approach. The whole automatic process behind Serializable can be replaced by custom code which uses writeObject() & readObject() methods. These methods are specific. If we want to rely on the Serializable approach in combination with custom serialization behavior, then we must include these two methods with the same exact signature as the one below:
private void writeObject(java.io.ObjectOutputStream out)
throws IOException;
private void readObject(java.io.ObjectInputStream in)
throws IOException, ClassNotFoundException;
private void readObjectNoData()
throws ObjectStreamException;
And now a comparison between Parcelable and custom Serializable seems fair! The results may be surprising! The custom Serializable approach is more than 3x faster for writes and 1.6x faster for reads than Parcelable.
Edited:-----
2) Kotlinx Serialization
Kotlinx Serialization Library
For Kotlin serialization need to add below dependency and plugin
implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime:0.9.1"
apply plugin: 'kotlinx-serialization'
Your build.gradle
file
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlinx-serialization'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.smile.kotlinxretrosample"
minSdkVersion 16
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime:0.9.1"
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.android.support:design:28.0.0'
implementation 'com.squareup.retrofit2:retrofit:2.5.0'
implementation 'com.squareup.okhttp3:okhttp:3.12.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
Serializing is done quite easily, you need to annotate the intended class with the @Serializable
annotation as below
import kotlinx.serialization.Serializable
@Serializable
class Field {
var count: Int = 0
var name: String = ""
}
Two more annotations to note are transient
and optional
. Using transient will have the serializer ignore that field and using optional will allow the serializer not to break if a field is missing, but at the same time a default value will need to be provided.
@Optional
var isOptional: Boolean = false
@Transient
var isTransient: Boolean = false
Note: This can as well work with data classes.
Now to actually use this in action let’s take an example of how to convert a JSON to object and back
fun toObject(stringValue: String): Field {
return JSON.parse(Field.serializer(), stringValue)
}
fun toJson(field: Field): String {
//Notice we call a serializer method which is autogenerated from our class
//once we have added the annotation to it
return JSON.stringify(Field.serializer(), field)
}
For more
The problem is your query returned false
meaning there was an error in your query. After your query you could do the following:
if (!$result) {
die(mysqli_error($link));
}
Or you could combine it with your query:
$results = mysqli_query($link, $query) or die(mysqli_error($link));
That will print out your error.
Also... you need to sanitize your input. You can't just take user input and put that into a query. Try this:
$query = "SELECT * FROM shopsy_db WHERE name LIKE '%" . mysqli_real_escape_string($link, $searchTerm) . "%'";
In reply to: Table 'sookehhh_shopsy_db.sookehhh_shopsy_db' doesn't exist
Are you sure the table name is sookehhh_shopsy_db? maybe it's really like users or something.
Yes, it's done in the Collections class. Note that you will need to convert your primitive char array to a Character[] manually.
A short demo:
import java.util.*;
public class Main {
public static Character[] convert(char[] chars) {
Character[] copy = new Character[chars.length];
for(int i = 0; i < copy.length; i++) {
copy[i] = Character.valueOf(chars[i]);
}
return copy;
}
public static void main(String[] args) {
char[] a = {'3', '5', '1', '4', '2'};
Character[] b = convert(a);
System.out.println(Collections.max(Arrays.asList(b)));
}
}
The solution to delete an Account/Property/View is still very similar to @Pranav ?'s answer. Google has just moved a few things around, so I thought I would update.
Click Admin Tab at the top of the page
Once you are on the Admin Page, You need to decide if you want to delete the Account, Property, or View. Make sure to select the desired Account, Property, or View from the Drop Down Menu.
In the following pictures, I will show you how to delete the Account, which removes all information including Properties and Views under that particular account.
Click Account Settings to remove Account, Property Settings to remove Property, and View Settings to remove View.
On Account Settings, you will notice a button 'Move to Trash Can'. You will click this to remove the Account, Property or View. You will have to verify Moving the Account to the Trash Can on the next page/picture.
When you have verified this is the account you want to delete, go ahead and select 'Trash Account'.
Note: When you Trash an Account it moves all the information to Admin/Account/Trash Can, where it can be recovered within 1 month. Keep in mind that every Account has its own Trash Can. Once that time has lapsed the Account, Property or View will be deleted FOREVER!
Hope this helps someone in the future, since I just struggled trying to figure it out even though its pretty simple now.
Left Click on chart. «PivotTable Field List» will appear on right. On the right down quarter of PivotTable Field List (S Values), you see the names of the legends. Left Click on the legend name. Left Click on the «Value field settings». At the top there is «Source Name». You can’t change it. Below there is «Custom Name». Change the Custom Name as you wish. Now the legend name on the chart has the new name you gave.
A popular desktop architecture divides a process's virtual memory in several segments:
Text segment: contains the executable code. The instruction pointer takes values in this range.
Data segment: contains global variables (i.e. objects with static linkage). Subdivided in read-only data (such as string constants) and uninitialized data ("BSS").
Stack segment: contains the dynamic memory for the program, i.e. the free store ("heap") and the local stack frames for all the threads. Traditionally the C stack and C heap used to grow into the stack segment from opposite ends, but I believe that practice has been abandoned because it is too unsafe.
A C program typically puts objects with static storage duration into the data segment, dynamically allocated objects on the free store, and automatic objects on the call stack of the thread in which it lives.
On other platforms, such as old x86 real mode or on embedded devices, things can obviously be radically different.
Tried many things but found solution by added below line in my.ini and restarting mysql service.
innodb_strict_mode = 0
You can get the values for the width and height of the browser using the following:
$(window).height();
$(window).width();
To get notified when the browser is resized, use this bind callback:
$(window).resize(function() {
// Do something
});
export
in sh
and related shells (such as bash
), marks an environment variable to be exported to child-processes, so that the child inherits them.
The shell shall give the export attribute to the variables corresponding to the specified names, which shall cause them to be in the environment of subsequently executed commands. If the name of a variable is followed by = word, then the value of that variable shall be set to word.
Just to add to Jon's coding if you needed to take it a step further, and do more than just one column you can add something like
Dim copyRange2 As Range
Dim copyRange3 As Range
Set copyRange2 =src.Range("B2:B" & lastRow)
Set copyRange3 =src.Range("C2:C" & lastRow)
copyRange2.SpecialCells(xlCellTypeVisible).Copy tgt.Range("B12")
copyRange3.SpecialCells(xlCellTypeVisible).Copy tgt.Range("C12")
put these near the other codings that are the same you can easily change the Ranges as you need.
I only add this because it was helpful for me. I'd assume Jon already knows this but for those that are less experienced sometimes it's helpful to see how to change/add/modify these codings. I figured since Ruya didn't know how to manipulate the original coding it could be helpful if one ever needed to copy over only 2 visibile columns, or only 3, etc. You can use this same coding, add in extra lines that are almost the same and then the coding is copying over whatever you need.
I don't have enough reputation to reply to Jon's comment directly so I have to post as a new comment, sorry.
Use a delay function like this:
var delay = ( function() {
var timer = 0;
return function(callback, ms) {
clearTimeout (timer);
timer = setTimeout(callback, ms);
};
})();
Usage:
delay(function(){
// do stuff
}, 5000 ); // end delay
Credits: How to delay the .keyup() handler until the user stops typing?
If you prefer attr_accessible, you could use it in Rails 4 too. You should install it like gem:
gem 'protected_attributes'
after that you could use attr_accessible in you models like in Rails 3
Also, and i think that is the best way- using form objects for dealing with mass assignment, and saving nested objects, and you can also use protected_attributes gem that way
class NestedForm
include ActiveModel::MassAssignmentSecurity
attr_accessible :name,
:telephone, as: :create_params
def create_objects(params)
SomeModel.new(sanitized_params(params, :create_params))
end
end
For the record:
"Data at the root level is invalid" means that you have attempted to parse something that is not an XML document. It doesn't even start to look like an XML document. It usually means just what you found: you're parsing something like the string "C:\inetpub\wwwroot\mysite\officelist.xml".
While I'd suggest using expect, too, for non-interactive use the normal shell commands might suffice. Telnet accepts its command on stdin, so you just need to pipe or write the commands into it:
telnet 10.1.1.1 <<EOF
remotecommand 1
remotecommand 2
EOF
(Edit: Judging from the comments, the remote command needs some time to process the inputs or the early SIGHUP is not taken gracefully by the telnet. In these cases, you might try a short sleep on the input:)
{ echo "remotecommand 1"; echo "remotecommand 2"; sleep 1; } | telnet 10.1.1.1
In any case, if it's getting interactive or anything, use expect
.
I would use a change event not a click like this:
$('input[name="name-of-radio-group"]').change( function() {
alert($(this).val())
})
Try this way
UIActivityIndicatorView *activityIndicator = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
activityIndicator.frame = CGRectMake(10.0, 0.0, 40.0, 40.0);
activityIndicator.center = super_view.center;
[super_view addSubview: activityIndicator];
[activityIndicator startAnimating];
If you are using canopy, use the package manager to install qt (and or pyqt)
This blog can help you. The trick is to use SpEL (spring expression language) to read the system properties like user.home
, to read user home directory using SpEL you could use #{ systemProperties['user.home']}
expression inside your bean elements. For example to access your properties file stored in your home directory you could use the following in your PropertyPlaceholderConfigurer, it worked for me.
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<value>file:#{ systemProperties['user.home']}/ur_folder/settings.properties</value>
</property>
</bean>
import org.json.JSONObject;
HashMap<Object, Object> map = new HashMap<>();
String[] list={"Grader","Participant"};
String[] list1={"Assistant","intern"};
map.put("TeachingAssistant",list);
map.put("Writer",list1);
JSONObject jsonObject = new JSONObject(map);
System.out.printf(jsonObject.toString());
// Result: {"TeachingAssistant":["Grader","Participant"],"Writer":["Assistant","intern"]}
In pycharm I wrote the code for accessing the IP Camera like:
import cv2
cap=VideoCapture("rtsp://user_name:password@IP_address:port_number")
ret, frame=cap.read()
You will need to replace user_name
, password
, IP
and port
with suitable values
I spent a while trying to uncover the answer to this question, and I finally published a tutorial on CRC-32 today: CRC-32 hash tutorial - AutoHotkey Community
In this example from it, I demonstrate how to calculate the CRC-32 hash for the ASCII string 'abc':
calculate the CRC-32 hash for the ASCII string 'abc':
inputs:
dividend: binary for 'abc': 0b011000010110001001100011 = 0x616263
polynomial: 0b100000100110000010001110110110111 = 0x104C11DB7
011000010110001001100011
reverse bits in each byte:
100001100100011011000110
append 32 0 bits:
10000110010001101100011000000000000000000000000000000000
XOR the first 4 bytes with 0xFFFFFFFF:
01111001101110010011100111111111000000000000000000000000
'CRC division':
01111001101110010011100111111111000000000000000000000000
100000100110000010001110110110111
---------------------------------
111000100010010111111010010010110
100000100110000010001110110110111
---------------------------------
110000001000101011101001001000010
100000100110000010001110110110111
---------------------------------
100001011101010011001111111101010
100000100110000010001110110110111
---------------------------------
111101101000100000100101110100000
100000100110000010001110110110111
---------------------------------
111010011101000101010110000101110
100000100110000010001110110110111
---------------------------------
110101110110001110110001100110010
100000100110000010001110110110111
---------------------------------
101010100000011001111110100001010
100000100110000010001110110110111
---------------------------------
101000011001101111000001011110100
100000100110000010001110110110111
---------------------------------
100011111110110100111110100001100
100000100110000010001110110110111
---------------------------------
110110001101101100000101110110000
100000100110000010001110110110111
---------------------------------
101101010111011100010110000001110
100000100110000010001110110110111
---------------------------------
110111000101111001100011011100100
100000100110000010001110110110111
---------------------------------
10111100011111011101101101010011
remainder: 0b10111100011111011101101101010011 = 0xBC7DDB53
XOR the remainder with 0xFFFFFFFF:
0b01000011100000100010010010101100 = 0x438224AC
reverse bits:
0b00110101001001000100000111000010 = 0x352441C2
thus the CRC-32 hash for the ASCII string 'abc' is 0x352441C2
There are several options available*:
*Disclaimer: This list may not be complete.
Using Flexbox
Nowadays, we can use flexbox. It is quite a handy alternative to the css-transform option. I would use this solution almost always. If it is just one element maybe not, but for example if I had to support an array of data e.g. rows and columns and I want them to be relatively centered in the very middle.
.flexbox {
display: flex;
height: 100px;
flex-flow: row wrap;
align-items: center;
justify-content: center;
background-color: #eaeaea;
border: 1px dotted #333;
}
.item {
/* default => flex: 0 1 auto */
background-color: #fff;
border: 1px dotted #333;
box-sizing: border-box;
}
_x000D_
<div class="flexbox">
<div class="item">I am centered in the middle.</div>
<div class="item">I am centered in the middle, too.</div>
</div>
_x000D_
Using CSS 2D-Transform
This is still a good option, was also the accepted solution back in 2015.
It is very slim and simple to apply and does not mess with the layouting of other elements.
.boxes {
position: relative;
}
.box {
position: relative;
display: inline-block;
float: left;
width: 200px;
height: 200px;
font-weight: bold;
color: #333;
margin-right: 10px;
margin-bottom: 10px;
background-color: #eaeaea;
}
.h-center {
text-align: center;
}
.v-center span {
position: absolute;
left: 0;
right: 0;
top: 50%;
transform: translate(0, -50%);
}
_x000D_
<div class="boxes">
<div class="box h-center">horizontally centered lorem ipsun dolor sit amet</div>
<div class="box v-center"><span>vertically centered lorem ipsun dolor sit amet lorem ipsun dolor sit amet</span></div>
<div class="box h-center v-center"><span>horizontally and vertically centered lorem ipsun dolor sit amet</span></div>
</div>
_x000D_
Note: This does also work with
:after
and:before
pseudo-elements.
Using Grid
This might just be an overkill, but it depends on your DOM. If you want to use grid anyway, then why not. It is very powerful alternative and you are really maximum flexible with the design.
Note: To align the items vertically we use flexbox in combination with grid. But we could also use
display: grid
on the items.
.grid {
display: grid;
width: 400px;
grid-template-rows: 100px;
grid-template-columns: 100px 100px 100px;
grid-gap: 3px;
align-items: center;
justify-content: center;
background-color: #eaeaea;
border: 1px dotted #333;
}
.item {
display: flex;
justify-content: center;
align-items: center;
border: 1px dotted #333;
box-sizing: border-box;
}
.item-large {
height: 80px;
}
_x000D_
<div class="grid">
<div class="item">Item 1</div>
<div class="item item-large">Item 2</div>
<div class="item">Item 3</div>
</div>
_x000D_
CSS article about grid
CSS article about flexbox
CSS article about centering without flexbox or grid
Actually, there is a way. You just need to copy DeviceSupport folder for iOS 7.1 from Older Xcode to the new one. It's located in:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/7.1
If you don't have the 7.1 files anymore, you can download a previous version of XCode on https://developer.apple.com/download/more/, extract it, and then copy these files to following path
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/
This image might help you to understand the differences.
The image was collected from ProgrammerHumor
If you just use
not var1
it is not possible to difference a variable which is boolean False
from an empty string ''
:
var1 = ''
not var1
> True
var1 = False
not var1
> True
However, if you add a simple condition to your script, the difference is made:
var1 = False
not var1 and var1 != ''
> True
var1 = ''
not var1 and var1 != ''
> False
Skip all of this. Download Microsoft FUZZY LOOKUP add in. Create tables using your columns. Create a new worksheet. INPUT tables into the tool. Click all corresponding columns check boxes. Use slider for exact matches. HIT go and wait for the magic.
The most efficient is to create a buffer of the correct size and then read the file into the buffer.
#include <fstream>
#include <vector>
int main()
{
std::ifstream file("Plop");
if (file)
{
/*
* Get the size of the file
*/
file.seekg(0,std::ios::end);
std::streampos length = file.tellg();
file.seekg(0,std::ios::beg);
/*
* Use a vector as the buffer.
* It is exception safe and will be tidied up correctly.
* This constructor creates a buffer of the correct length.
* Because char is a POD data type it is not initialized.
*
* Then read the whole file into the buffer.
*/
std::vector<char> buffer(length);
file.read(&buffer[0],length);
}
}
Another reason to use object
over iframe is that object
sub resources (when an <object>
performs HTTP
requests) are considered as passive/display
in terms of Mixed content
, which means it's more secure when you must have Mixed content
.
Mixed content means that when you have https
but your resource is from http
.
Reference: https://developer.mozilla.org/en-US/docs/Web/Security/Mixed_content
If you need to be able to switch between more than two versions at a time, you can use the following to change the version of PHP manually.
MAMP automatically rewrites the following line in your /Applications/MAMP/conf/apache/httpd.conf file when it restarts based on the settings in preferences. You can comment out this line and add the second one to the end of your file:
# Comment this out just under all the modules loaded
# LoadModule php5_module /Applications/MAMP/bin/php/php5.x.x/modules/libphp5.so
At the bottom of the httpd.conf file, you'll see where additional configurations are loaded from the extra folder. Add this to the bottom of the httpd.conf file
# PHP Version Change
Include /Applications/MAMP/conf/apache/extra/httpd-php.conf
Then create a new file here: /Applications/MAMP/conf/apache/extra/httpd-php.conf
# Uncomment the version of PHP you want to run with MAMP
# LoadModule php5_module /Applications/MAMP/bin/php/php5.2.17/modules/libphp5.so
# LoadModule php5_module /Applications/MAMP/bin/php/php5.3.27/modules/libphp5.so
# LoadModule php5_module /Applications/MAMP/bin/php/php5.4.19/modules/libphp5.so
LoadModule php5_module /Applications/MAMP/bin/php/php5.5.3/modules/libphp5.so
After you have this setup, just uncomment the version of PHP you want to use and restart the servers!
Save the username and password hashes in array in a php file instead of db.
When you need to authenticate the user, compute hashes of his credentials and then compare them to hashes in array.
If you use safe hash function (see hash function and hash algos in PHP documentation), it should be pretty safe (you may consider using salted hash) and also add some protections to the form itself.
I had an issue with blob url hrefs. So, with a reference to the iframe, I just produced an url from the iframe's src attribute:
const iframeReference = document.getElementById("iframe_id");
const iframeUrl = iframeReference ? new URL(iframeReference.src) : undefined;
if (iframeUrl) {
console.log("Voila: " + iframeUrl);
} else {
console.warn("iframe with id iframe_id not found");
}
You can just replace each space with %
SELECT `name` FROM `table` WHERE `name` LIKE '%Stylus%2100%'
It means there is a compilation error in your XML file, something that shouldn't be there: a spelling mistake/a spurious character/an incorrect namespace.
Your issue is you've got a semicolon that shouldn't be there after this line:
android:text="@string/hello";
In a similar case, I wanted to avoid always calling addClass or removeClass due to performance issues. I've split the scroll handler function into two individual functions, used according to the current state. I also added a debounce functionality according to this article: https://developers.google.com/web/fundamentals/performance/rendering/debounce-your-input-handlers
var $header = jQuery( ".clearHeader" );
var appScroll = appScrollForward;
var appScrollPosition = 0;
var scheduledAnimationFrame = false;
function appScrollReverse() {
scheduledAnimationFrame = false;
if ( appScrollPosition > 500 )
return;
$header.removeClass( "darkHeader" );
appScroll = appScrollForward;
}
function appScrollForward() {
scheduledAnimationFrame = false;
if ( appScrollPosition < 500 )
return;
$header.addClass( "darkHeader" );
appScroll = appScrollReverse;
}
function appScrollHandler() {
appScrollPosition = window.pageYOffset;
if ( scheduledAnimationFrame )
return;
scheduledAnimationFrame = true;
requestAnimationFrame( appScroll );
}
jQuery( window ).scroll( appScrollHandler );
Maybe someone finds this helpful.
string texts[] = {"Apple", "Banana", "Orange"};
for( unsigned int a = 0; a < sizeof(texts); a = a + 1 )
{
cout << "value of a: " << texts[a] << endl;
}
Nope. Totally a wrong way of iterating through an array. sizeof(texts)
is not equal to the number of elements in the array!
The modern, C++11 ways would be to:
std::array
if you want an array whose size is known at compile-time; orstd::vector
if its size depends on runtimeThen use range-for when iterating.
#include <iostream>
#include <array>
int main() {
std::array<std::string, 3> texts = {"Apple", "Banana", "Orange"};
// ^ An array of 3 elements with the type std::string
for(const auto& text : texts) { // Range-for!
std::cout << text << std::endl;
}
}
You may ask, how is std::array
better than the ol' C array? The answer is that it has the additional safety and features of other standard library containers, mostly closely resembling std::vector
. Further, The answer is that it doesn't have the quirks of decaying to pointers and thus losing type information, which, once you lose the original array type, you can't use range-for or std::begin/end
on it.
Just another ES6 version.
By making use of Array.from
second optional argument:
Array.from(arrayLike[, mapFn[, thisArg]])
We can build the numbered array from the empty Array(10)
positions:
Array.from(Array(10), (_, i) => i)
var arr = Array.from(Array(10), (_, i) => i);_x000D_
document.write(arr);
_x000D_
One of the things I would suggest is to have two separate stylesheets: One with your regular style definitions and another one that contains your images in base64 encoding.
You have to include the base stylesheet before the image stylesheet of course.
This way you will assure that you're regular stylesheet is downloaded and applied as soon as possible to the document, yet at the same time you profit from reduced http-requests and other benefits data-uris give you.
There are many way to do the string aggregation, but the easiest is a user defined function. Try this for a way that does not require a function. As a note, there is no simple way without the function.
This is the shortest route without a custom function: (it uses the ROW_NUMBER() and SYS_CONNECT_BY_PATH functions )
SELECT questionid,
LTRIM(MAX(SYS_CONNECT_BY_PATH(elementid,','))
KEEP (DENSE_RANK LAST ORDER BY curr),',') AS elements
FROM (SELECT questionid,
elementid,
ROW_NUMBER() OVER (PARTITION BY questionid ORDER BY elementid) AS curr,
ROW_NUMBER() OVER (PARTITION BY questionid ORDER BY elementid) -1 AS prev
FROM emp)
GROUP BY questionid
CONNECT BY prev = PRIOR curr AND questionid = PRIOR questionid
START WITH curr = 1;
You can try this:
function Get-UrlStatusCode([string] $Url)
{
try
{
(Invoke-WebRequest -Uri $Url -UseBasicParsing -DisableKeepAlive).StatusCode
}
catch [Net.WebException]
{
[int]$_.Exception.Response.StatusCode
}
}
$statusCode = Get-UrlStatusCode 'httpstat.us/500'
You can use Enumerable.Intersect
:
int[] array1 = new int[] { 1, 2, 3, 4,5 },
array2 = new int[] {7,8};
if (array1.Intersect(array2).Any())
Console.WriteLine("matched");
else
Console.WriteLine("not matched");
Java and HTTPS url connection without downloading certificate
If you really want to avoid downloading the server's certificate, then use an anonymous protocol like Anonymous Diffie-Hellman (ADH). The server's certificate is not sent with ADH and friends.
You select an anonymous protocol with setEnabledCipherSuites
. You can see the list of cipher suites available with getEnabledCipherSuites
.
Related: that's why you have to call SSL_get_peer_certificate
in OpenSSL. You'll get a X509_V_OK
with an anonymous protocol, and that's how you check to see if a certificate was used in the exchange.
But as Bruno and Stephed C stated, its a bad idea to avoid the checks or use an anonymous protocol.
Another option is to use TLS-PSK or TLS-SRP. They don't require server certificates either. (But I don't think you can use them).
The rub is, you need to be pre-provisioned in the system because TLS-PSK is Pres-shared Secret and TLS-SRP is Secure Remote Password. The authentication is mutual rather than server only.
In this case, the mutual authentication is provided by a property that both parties know the shared secret and arrive at the same premaster secret; or one (or both) does not and channel setup fails. Each party proves knowledge of the secret is the "mutual" part.
Finally, TLS-PSK or TLS-SRP don't do dumb things, like cough up the user's password like in a web app using HTTP (or over HTTPS). That's why I said each party proves knowledge of the secret...
Let me explain why sleep infinity
works though it is not documented. jp48's answer is also useful.
The most important thing: By specifying inf
or infinity
(both case-insensitive), you can sleep for the longest time your implementation permits (i.e. the smaller value of HUGE_VAL
and TYPE_MAXIMUM(time_t)
).
Now let's dig into the details. The source code of sleep
command can be read from coreutils/src/sleep.c. Essentially, the function does this:
double s; //seconds
xstrtod (argv[i], &p, &s, cl_strtod); //`p` is not essential (just used for error check).
xnanosleep (s);
xstrtod (argv[i], &p, &s, cl_strtod)
xstrtod()
According to gnulib/lib/xstrtod.c, the call of xstrtod()
converts string argv[i]
to a floating point value and stores it to *s
, using a converting function cl_strtod()
.
cl_strtod()
As can be seen from coreutils/lib/cl-strtod.c, cl_strtod()
converts a string to a floating point value, using strtod()
.
strtod()
According to man 3 strtod
, strtod()
converts a string to a value of type double
. The manpage says
The expected form of the (initial portion of the) string is ... or (iii) an infinity, or ...
and an infinity is defined as
An infinity is either "INF" or "INFINITY", disregarding case.
Although the document tells
If the correct value would cause overflow, plus or minus
HUGE_VAL
(HUGE_VALF
,HUGE_VALL
) is returned
, it is not clear how an infinity is treated. So let's see the source code gnulib/lib/strtod.c. What we want to read is
else if (c_tolower (*s) == 'i'
&& c_tolower (s[1]) == 'n'
&& c_tolower (s[2]) == 'f')
{
s += 3;
if (c_tolower (*s) == 'i'
&& c_tolower (s[1]) == 'n'
&& c_tolower (s[2]) == 'i'
&& c_tolower (s[3]) == 't'
&& c_tolower (s[4]) == 'y')
s += 5;
num = HUGE_VAL;
errno = saved_errno;
}
Thus, INF
and INFINITY
(both case-insensitive) are regarded as HUGE_VAL
.
HUGE_VAL
family
Let's use N1570 as the C standard. HUGE_VAL
, HUGE_VALF
and HUGE_VALL
macros are defined in §7.12-3
The macro
HUGE_VAL
expands to a positive double constant expression, not necessarily representable as a float. The macros
HUGE_VALF
HUGE_VALL
are respectively float and long double analogs ofHUGE_VAL
.
HUGE_VAL
,HUGE_VALF
, andHUGE_VALL
can be positive infinities in an implementation that supports infinities.
and in §7.12.1-5
If a floating result overflows and default rounding is in effect, then the function returns the value of the macro
HUGE_VAL
,HUGE_VALF
, orHUGE_VALL
according to the return type
xnanosleep (s)
Now we understand all essence of xstrtod()
. From the explanations above, it is crystal-clear that xnanosleep(s)
we've seen first actually means xnanosleep(HUGE_VALL)
.
xnanosleep()
According to the source code gnulib/lib/xnanosleep.c, xnanosleep(s)
essentially does this:
struct timespec ts_sleep = dtotimespec (s);
nanosleep (&ts_sleep, NULL);
dtotimespec()
This function converts an argument of type double
to an object of type struct timespec
. Since it is very simple, let me cite the source code gnulib/lib/dtotimespec.c. All of the comments are added by me.
struct timespec
dtotimespec (double sec)
{
if (! (TYPE_MINIMUM (time_t) < sec)) //underflow case
return make_timespec (TYPE_MINIMUM (time_t), 0);
else if (! (sec < 1.0 + TYPE_MAXIMUM (time_t))) //overflow case
return make_timespec (TYPE_MAXIMUM (time_t), TIMESPEC_HZ - 1);
else //normal case (looks complex but does nothing technical)
{
time_t s = sec;
double frac = TIMESPEC_HZ * (sec - s);
long ns = frac;
ns += ns < frac;
s += ns / TIMESPEC_HZ;
ns %= TIMESPEC_HZ;
if (ns < 0)
{
s--;
ns += TIMESPEC_HZ;
}
return make_timespec (s, ns);
}
}
Since time_t
is defined as an integral type (see §7.27.1-3), it is natural we assume the maximum value of type time_t
is smaller than HUGE_VAL
(of type double
), which means we enter the overflow case. (Actually this assumption is not needed since, in all cases, the procedure is essentially the same.)
make_timespec()
The last wall we have to climb up is make_timespec()
. Very fortunately, it is so simple that citing the source code gnulib/lib/timespec.h is enough.
_GL_TIMESPEC_INLINE struct timespec
make_timespec (time_t s, long int ns)
{
struct timespec r;
r.tv_sec = s;
r.tv_nsec = ns;
return r;
}
For example using gsub
or sub
gsub('.*:(.*)','\\1',string)
[1] "E001" "E002" "E003"
Here's how to do this with lxml without having to hard-code the namespaces or scan the text for them (as Martijn Pieters mentions):
from lxml import etree
tree = etree.parse("filename")
root = tree.getroot()
root.findall('owl:Class', root.nsmap)
UPDATE:
5 years later I'm still running into variations of this issue. lxml helps as I showed above, but not in every case. The commenters may have a valid point regarding this technique when it comes merging documents, but I think most people are having difficulty simply searching documents.
Here's another case and how I handled it:
<?xml version="1.0" ?><Tag1 xmlns="http://www.mynamespace.com/prefix">
<Tag2>content</Tag2></Tag1>
xmlns without a prefix means that unprefixed tags get this default namespace. This means when you search for Tag2, you need to include the namespace to find it. However, lxml creates an nsmap entry with None as the key, and I couldn't find a way to search for it. So, I created a new namespace dictionary like this
namespaces = {}
# response uses a default namespace, and tags don't mention it
# create a new ns map using an identifier of our choice
for k,v in root.nsmap.iteritems():
if not k:
namespaces['myprefix'] = v
e = root.find('myprefix:Tag2', namespaces)
You can use the basic way image preloaders work to test if an image exists.
function checkImage(imageSrc, good, bad) {
var img = new Image();
img.onload = good;
img.onerror = bad;
img.src = imageSrc;
}
checkImage("foo.gif", function(){ alert("good"); }, function(){ alert("bad"); } );
Put the elements which you want to shift to the centre within this div tag.
<div class="col d-flex justify-content-center">
</div>
If you're accessing this via a View then try sp_recompile
or refreshing views.
sp_recompile
:
Causes stored procedures, triggers, and user-defined functions to be recompiled the next time that they are run. It does this by dropping the existing plan from the procedure cache forcing a new plan to be created the next time that the procedure or trigger is run. In a SQL Server Profiler collection, the event SP:CacheInsert is logged instead of the event SP:Recompile.
Arguments
[ @objname= ] 'object'
The qualified or unqualified name of a stored procedure, trigger, table, view, or user-defined function in the current database. object is nvarchar(776), with no default. If object is the name of a stored procedure, trigger, or user-defined function, the stored procedure, trigger, or function will be recompiled the next time that it is run. If object is the name of a table or view, all the stored procedures, triggers, or user-defined functions that reference the table or view will be recompiled the next time that they are run.
Return Code Values
0 (success) or a nonzero number (failure)
Remarks
sp_recompile
looks for an object in the current database only.
The queries used by stored procedures, or triggers, and user-defined functions are optimized only when they are compiled. As indexes or other changes that affect statistics are made to the database, compiled stored procedures, triggers, and user-defined functions may lose efficiency. By recompiling stored procedures and triggers that act on a table, you can reoptimize the queries.
For anyone that this might be handy for, here is a jQuery dependent function I had success with for applying a CSS animation via a CSS class, then getting a callback from afterwards. It may not work perfectly since I had it being used in a Backbone.js App, but maybe useful.
var cssAnimate = function(cssClass, callback) {
var self = this;
// Checks if correct animation has ended
var setAnimationListener = function() {
self.one(
"webkitAnimationEnd oanimationend msAnimationEnd animationend",
function(e) {
if(
e.originalEvent.animationName == cssClass &&
e.target === e.currentTarget
) {
callback();
} else {
setAnimationListener();
}
}
);
}
self.addClass(cssClass);
setAnimationListener();
}
I used it kinda like this
cssAnimate.call($("#something"), "fadeIn", function() {
console.log("Animation is complete");
// Remove animation class name?
});
Original idea from http://mikefowler.me/2013/11/18/page-transitions-in-backbone/
And this seems handy: http://api.jqueryui.com/addClass/
Update
After struggling with the above code and other options, I would suggest being very cautious with any listening for CSS animation ends. With multiple animations going on, this can get messy very fast for event listening. I would strongly suggest an animation library like GSAP for every animation, even the small ones.
Using simple html,
<div>
<object type="text/html" data="http://validator.w3.org/" width="800px" height="600px" style="overflow:auto;border:5px ridge blue">
</object>
</div>
Or jquery,
<script>
$("#mydiv")
.html('<object data="http://your-website-domain"/>');
</script>
Free unless noted
Bindings:
Fantasy Consoles:
Editor and games run in an emulated computer system
Inactive/Discontinued:
I prefer ANSI timestamp literals:
insert into the_table
(the_timestamp_column)
values
(timestamp '2017-10-12 21:22:23');
More details in the manual: https://docs.oracle.com/database/121/SQLRF/sql_elements003.htm#SQLRF51062
Instead of removing NS you can try removing replicaSet
kubectl get rs --all-namespaces
Then delete the replicaSet
kubectl delete rs your_app_name
It's a better idea to put your configuration variables in a configuration file.
In your case, I would suggest putting your variables in config/mail.php like:
'imap_hostname' => env('IMAP_HOSTNAME_TEST', 'imap.gmail.com')
And refer to them by
config('mail.imap_hostname')
It first tries to get the configuration variable value in the .env file and if it couldn't find the variable value in the .env file, it will get the variable value from file config/mail.php.
In my recent project my task was to clean an entire database by using sql statement and each table having many constraints like Primary Key and Foreign Key. There are more than 1000 tables in database so its not possible to write a delete query on each and ever table.
By using a stored procedure named sp_MSForEachTable which allows us to easily process some code against each and every table in a single database. It means that it is used to process a single T-SQL command or a different T-SQL commands against every table in the database.
So follow the below steps to truncate all tables in a SQL Server Database:
Step 1- Disable all constraints on the database by using below sql query :
EXEC sys.sp_msforeachtable 'ALTER TABLE ? NOCHECK CONSTRAINT ALL'
Step 2- Execute a Delete or truncate operation on each table of the database by using below sql command :
EXEC sys.sp_msforeachtable 'DELETE FROM ?'
Step 3- Enable all constraints on the database by using below sql statement:
EXEC sys.sp_MSForEachTable 'ALTER TABLE ? CHECK CONSTRAINT ALL'
The two previous answers demonstrate how to use Canvas and ImageData. I would like to propose an answer with runnable example and using an image processing framework, so you don't need to handle the pixel data manually.
MarvinJ provides the method image.getAlphaComponent(x,y) which simply returns the transparency value for the pixel in x,y coordinate. If this value is 0, pixel is totally transparent, values between 1 and 254 are transparency levels, finally 255 is opaque.
For demonstrating I've used the image below (300x300) with transparent background and two pixels at coordinates (0,0) and (150,150).
Console output:
(0,0): TRANSPARENT
(150,150): NOT_TRANSPARENT
image = new MarvinImage();_x000D_
image.load("https://i.imgur.com/eLZVbQG.png", imageLoaded);_x000D_
_x000D_
function imageLoaded(){_x000D_
console.log("(0,0): "+(image.getAlphaComponent(0,0) > 0 ? "NOT_TRANSPARENT" : "TRANSPARENT"));_x000D_
console.log("(150,150): "+(image.getAlphaComponent(150,150) > 0 ? "NOT_TRANSPARENT" : "TRANSPARENT"));_x000D_
}
_x000D_
<script src="https://www.marvinj.org/releases/marvinj-0.7.js"></script>
_x000D_
You only have to add group = 1
into the ggplot or geom_line aes().
For line graphs, the data points must be grouped so that it knows which points to connect. In this case, it is simple -- all points should be connected, so group=1. When more variables are used and multiple lines are drawn, the grouping for lines is usually done by variable.
Reference: Cookbook for R, Chapter: Graphs Bar_and_line_graphs_(ggplot2), Line graphs.
Try this:
plot5 <- ggplot(df, aes(year, pollution, group = 1)) +
geom_point() +
geom_line() +
labs(x = "Year", y = "Particulate matter emissions (tons)",
title = "Motor vehicle emissions in Baltimore")
@about8 : there is a pretty serious bug there.
Zam obj1 = new Zam("foo", "bar", "baz");
Zam obj2 = new Zam("fo", "obar", "baz");
same hashcode
you probably want something like
public int hashCode() {
return (getFoo().hashCode() + getBar().hashCode()).toString().hashCode();
(can you get hashCode directly from int in Java these days? I think it does some autocasting.. if that's the case, skip the toString, it's ugly.)
The asker commented:
I figure that if I understand a problem well enough to write a program that can figure it out, I don't need to do the work manually.
If he's writing a math expression solver as a learning exercise, using eval()
isn't going to help. Plus it's terrible design.
You might consider making a calculator using Reverse Polish Notation instead of standard math notation. It simplifies the parsing considerably. It would still be a good exercise
Try the SetField method:
table.Rows[i].SetField(column, value);
table.Rows[i].SetField(columnIndex, value);
table.Rows[i].SetField(columnName, value);
This should get the job done and is a bit "cleaner" than using Rows[i][j].
On my Fedora machine, when I typed "make" I got an error saying it could not find "cv.h". I fixed this by modifying my "OpenCVConfig.cmake" file.
Before:
SET(OpenCV_INCLUDE_DIRS "${OpenCV_INSTALL_PATH}/include/opencv;${OpenCV_INSTALL_PATH}/include")
SET(OpenCV_LIB_DIR "${OpenCV_INSTALL_PATH}/lib64")
After:
SET(OpenCV_INCLUDE_DIRS "/usr/include/opencv;/usr/include/opencv2")
SET(OpenCV_LIB_DIR "/usr/lib64")
I added a reference to the .dll file, for System.Data.Linq, the above was not sufficient. You can find .dll in the various directories for the following versions.
System.Data.Linq C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Data.Linq.dll 3.5.0.0
System.Data.Linq C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETFramework\v4.0\Profile\Client\System.Data.Linq.dll 4.0.0.0
I've had this issue on a lot of mobile views I've recently built.
My solution is still a pure CSS Fallback
http://css-tricks.com/perfect-full-page-background-image/ as three great methods, the latter two are fall backs for when CSS3's cover doesn't work.
HTML
<img src="images/bg.jpg" id="bg" alt="">
CSS
#bg {
position: fixed;
top: 0;
left: 0;
/* Preserve aspect ratio */
min-width: 100%;
min-height: 100%;
}
This answer is not working since the urllib2
module has been split across several modules in Python 3.
You need to do
from urllib import request
opener = request.build_opener()
opener.addheaders.append(('Cookie', 'cookiename=cookievalue'))
f = opener.open("http://example.com/")
Very nice question, first we need to on the IDENTITY_INSERT for the specific table, after that run the insert query (Must specify the column name).
Note: After edit the the identity column, don't forget to off the IDENTITY_INSERT. If you not done, you cannot able to Edit the identity column for any other table.
SET IDENTITY_INSERT Emp_tb_gb_Menu ON
INSERT Emp_tb_gb_Menu(MenuID) VALUES (68)
SET IDENTITY_INSERT Emp_tb_gb_Menu OFF
http://allinworld99.blogspot.com/2016/07/how-to-edit-identity-field-in-sql.html
For example in GNU/Linux you can use:
Pid=$(pidof `process_name`)
if [ $Pid > 0 ]; then
do something
else
do something
fi
Or something like
Pin=$(ps -A | grep name | awk 'print $4}')
echo $PIN
and that shows you the name of the app, just the name without ID.
In newer browser (excluding IE11), a simple solution to prevent parent-child margin collapsing is to use display: flow-root
. However, you would still need other techniques to prevent adjacent element collapsing.
DEMO (before)
.parent {_x000D_
background-color: grey;_x000D_
}_x000D_
_x000D_
.child {_x000D_
height: 16px;_x000D_
margin-top: 16px;_x000D_
margin-bottom: 16px;_x000D_
background-color: blue;_x000D_
}
_x000D_
<div class="parent">_x000D_
<div class="child"></div>_x000D_
<div class="child"></div>_x000D_
<div class="child"></div>_x000D_
</div>
_x000D_
DEMO (after)
.parent {_x000D_
display: flow-root;_x000D_
background-color: grey;_x000D_
}_x000D_
_x000D_
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height: 16px;_x000D_
margin-top: 16px;_x000D_
margin-bottom: 16px;_x000D_
background-color: blue;_x000D_
}
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var lastname = "Hi";
if(typeof lastname !== "undefined")
{
alert("Hi. Variable is defined.");
}
I had same issue using different dependancy what helped me is to set scope to compile.
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>compile</scope>
</dependency>
If you want something like the python3 print function but to a string:
def sprint(*args, **kwargs):
sio = io.StringIO()
print(*args, **kwargs, file=sio)
return sio.getvalue()
>>> x = sprint('abc', 10, ['one', 'two'], {'a': 1, 'b': 2}, {1, 2, 3})
>>> x
"abc 10 ['one', 'two'] {'a': 1, 'b': 2} {1, 2, 3}\n"
or without the '\n'
at the end:
def sprint(*args, end='', **kwargs):
sio = io.StringIO()
print(*args, **kwargs, end=end, file=sio)
return sio.getvalue()
>>> x = sprint('abc', 10, ['one', 'two'], {'a': 1, 'b': 2}, {1, 2, 3})
>>> x
"abc 10 ['one', 'two'] {'a': 1, 'b': 2} {1, 2, 3}"
This is a way to retrieve the body "AND" the status code and format it to a proper json or whatever format works for you. Some may argue it's the incorrect use of write format option but this works for me when I need both body and status code in my scripts to check status code and relay back the responses from server.
curl -X GET -w "%{stderr}{\"status\": \"%{http_code}\", \"body\":\"%{stdout}\"}" -s -o - “https://github.com” 2>&1
run the code above and you should get back a json in this format:
{
"status" : <status code>,
"body" : <body of response>
}
with the -w write format option, since stderr is printed first, you can format your output with the var http_code and place the body of the response in a value (body) and follow up the enclosing using var stdout. Then redirect your stderr output to stdout and you'll be able to combine both http_code and response body into a neat output
I answered this question here, as well: https://dba.stackexchange.com/a/42932/24122
I recently experienced this same issue. I'm on a Mac and so I used MAMP in order to restore the Database to a point where I could export it in a MySQL dump.
You can read the full blog post about it here: http://www.quora.com/Jordan-Ryan/Web-Dev/How-to-Recover-innoDB-MySQL-files-using-MAMP-on-a-Mac
You must have:
-ibdata1
-ib_logfile0
-ib_logfile1
-.FRM files from your mysql_database folder
-Fresh installation of MAMP / MAMP Pro that you are willing to destroy (if need be)
Copy in all folders and files included in the archive of the mysql folder from the production server (mt Plesk environment in my case) EXCEPT DO NOT OVERWRITE:
-/Applications/MAMP/db/mysql/mysql/
-/Applications/MAMP/db/mysql/mysql_upgrade_info
-/Applications/MAMP/db/mysql/performance_schema
And voila, you now should be able to access the databases from phpMyAdmin, what a relief!
But we're not done, you now need to perform a mysqldump in order to restore these files to your production environment, and the phpmyadmin interface times out for large databases. Follow the steps here:
http://nickhardeman.com/308/export-import-large-database-using-mamp-with-terminal/
Copied below for reference. Note that on a default MAMP installation, the password is "root".
EXPORT DATABASE FROM MAMP[1]
Step One: Open a new terminal window
Step Two: Navigate to the MAMP install by entering the following line in terminal cd /applications/MAMP/library/bin Hit the enter key
Step Three: Write the dump command ./mysqldump -u [USERNAME] -p [DATA_BASENAME] > [PATH_TO_FILE] Hit the enter key
Example:
./mysqldump -u root -p wp_database > /Applications/MAMP/htdocs/symposium10_wp/wp_db_onezero.sql
Quick tip: to navigate to a folder quickly you can drag the folder into the terminal window and it will write the location of the folder. It was a great day when someone showed me this.
Step Four: This line of text should appear after you hit enter Enter password: So guess what, type your password, keep in mind that the letters will not appear, but they are there Hit the enter key
Step Five: Check the location of where you stored your file, if it is there, SUCCESS Now you can import the database, which will be outlined next.
Now that you have an export of your mysql database you can import it on the production environment.
Use:
x.astype(int)
Here is the reference.
I got the same error as I didn't save the script before executing it. Check to see if you have saved it!
I like Brian R. Bondy's answer. I just wanted to add that Wikipedia provides a clear description of REST. The article distinguishes it from SOAP.
REST is an exchange of state information, done as simply as possible.
SOAP is a message protocol that uses XML.
One of the main reasons that many people have moved from SOAP to REST is that the WS-* (called WS splat) standards associated with SOAP based web services are EXTREMELY complicated. See wikipedia for a list of the specifications. Each of these specifications is very complicated.
EDIT: for some reason the links are not displaying correctly. REST = http://en.wikipedia.org/wiki/REST
WS-* = http://en.wikipedia.org/wiki/WS-*
IEnumerable<int> ids = list.Select(x=>x.ID).Distinct();
If the two jars that you want to create are the mostly the same, and the only difference is the main class that should be started from each, you can put all of the classes in a third jar. Then create two jars with just a manifest in each. In the MANIFEST.MF file, name the entry class using the Main-Class
attribute.
Additionally, specify the Class-Path
attribute. The value of this should be the name of the jar file that contains all of the shared code. Then deploy all three jar files in the same directory. Of course, if you have third-party libraries, those can be listed in the Class-Path attribute too.
This is related to compact
option of Babel compiler, which commands to "not include superfluous whitespace characters and line terminators. When set to 'auto' compact is set to true on input sizes of >100KB." By default its value is "auto", so that is probably the reason you are getting the warning message. See Babel documentation.
You can change this option from Webpack using a query parameter. For example:
loaders: [
{ test: /\.js$/, loader: 'babel', query: {compact: false} }
]