You need to
#include <string>
<iostream>
declares cout
, cin
, not string
.
Sets behave different than dicts, you need to use set operations like issubset():
>>> k
{'ip': '123.123.123.123', 'pw': 'test1234', 'port': 1234, 'debug': True}
>>> set('ip,port,pw'.split(',')).issubset(set(k.keys()))
True
>>> set('ip,port,pw'.split(',')) in set(k.keys())
False
The issue seems to be that you are adding the deffered.promise
when deffered
is itself the promise you should be adding:
Try changing to promises.push(deffered);
so you don't add the unwrapped promise to the array.
UploadService.uploadQuestion = function(questions){
var promises = [];
for(var i = 0 ; i < questions.length ; i++){
var deffered = $q.defer();
var question = questions[i];
$http({
url : 'upload/question',
method: 'POST',
data : question
}).
success(function(data){
deffered.resolve(data);
}).
error(function(error){
deffered.reject();
});
promises.push(deffered);
}
return $q.all(promises);
}
This problem is from the lazy update data request of Chrome. At the first time you go to homepage. Chrome request with empty data. Then you go to the login page and logged in. When you back home page Chrome lazy to update the cookie data request because this domain is the same with the first time you access. Solution: Add parameter for home url. That helps Chrome realizes that this request need to update cookie to call to the server.
add at dashboard page
<?php
$track = '?track='.uniqid();
?>
<a href="<?= get_home_url(). $track ?>"> <img src="/img/logo.svg"></a>
Why don't you just use the array of chars you have? This ought to do it:
source[i] = getc(fp);
i++;
You don't have to use the message passing to obtain or modify DOM. I used chrome.tabs.executeScript
instead. In my example I am using only activeTab permission, therefore the script is executed only on the active tab.
part of manifest.json
"browser_action": {
"default_title": "Test",
"default_popup": "index.html"
},
"permissions": [
"activeTab",
"<all_urls>"
]
index.html
<!DOCTYPE html>
<html>
<head></head>
<body>
<button id="test">TEST!</button>
<script src="test.js"></script>
</body>
</html>
test.js
document.getElementById("test").addEventListener('click', () => {
console.log("Popup DOM fully loaded and parsed");
function modifyDOM() {
//You can play with your DOM here or check URL against your regex
console.log('Tab script:');
console.log(document.body);
return document.body.innerHTML;
}
//We have permission to access the activeTab, so we can call chrome.tabs.executeScript:
chrome.tabs.executeScript({
code: '(' + modifyDOM + ')();' //argument here is a string but function.toString() returns function's code
}, (results) => {
//Here we have just the innerHTML and not DOM structure
console.log('Popup script:')
console.log(results[0]);
});
});
SourceTree is a git GUI which has a pretty convenient interface for staging just the bits you want. It does not have anything remotely similar for amending a proper revision.
So git reset --soft HEAD~1
is much more useful than commit --amend
in this scenario. I can undo the commit, get all the changes back into the staging area, and resume tweaking the staged bits using SourceTree.
Really, it seems to me that commit --amend
is the more redundant command of the two, but git is git and does not shy away from similar commands that do slightly different things.
When constructing multi-dimensional lists in Python I usually use something similar to ThiefMaster's solution, but rather than appending items to index 0
, then appending items to index 1
, etc., I always use index -1
which is automatically the index of the last item in the array.
i.e.
arr = []
arr.append([])
arr[-1].append("aa1")
arr[-1].append("aa2")
arr.append([])
arr[-1].append("bb1")
arr[-1].append("bb2")
arr[-1].append("bb3")
will produce the 2D-array (actually a list of lists) you're after.
As a one-liner:
var result = Regex.Replace(input, @"[^\x00-\x7F]", c =>
string.Format(@"\u{0:x4}", (int)c.Value[0]));
I haven't tried it, but you may want to download this version of Portable Python. It comes with Scipy-0.7.0b1 running on Python 2.5.4.
I found this trying to store a massive number of files(350k+) in a repo. Yes, store. Laughs.
$ time git add .
git add . 333.67s user 244.26s system 14% cpu 1:06:48.63 total
The following extracts from the Bitbucket documentation are quite interesting.
When you work with a DVCS repository cloning, pushing, you are working with the entire repository and all of its history. In practice, once your repository gets larger than 500MB, you might start seeing issues.
... 94% of Bitbucket customers have repositories that are under 500MB. Both the Linux Kernel and Android are under 900MB.
The recommended solution on that page is to split your project into smaller chunks.
It works for me:
System.Data.DataRowView typeItem = (System.Data.DataRowView)ComboBoxName.SelectedItem;
string value = typeItem.DataView.ToTable("a").Rows[0][0].ToString();
A char
is an integral type. When you write
char ch = 'A';
you're setting the value of ch
to whatever number your compiler uses to represent the character 'A'
. That's usually the ASCII code for 'A'
these days, but that's not required. You're almost certainly using a system that uses ASCII.
Like any numeric type, you can initialize it with an ordinary number:
char ch = 13;
If you want do do arithmetic on a char
value, just do it: ch = ch + 1;
etc.
However, in order to display the value you have to get around the assumption in the iostreams library that you want to display char
values as characters rather than numbers. There are a couple of ways to do that.
std::cout << +ch << '\n';
std::cout << int(ch) << '\n'
Way late to the party here, but I just have to add Android's own TextUtils.isEmpty(CharSequence str)
Returns true if the string is null or 0-length
So if you put your five EditTexts in a list, the full code would be:
for(EditText edit : editTextList){
if(TextUtils.isEmpty(edit.getText()){
// EditText was empty
// Do something fancy
}
}
If you are creating an array then there is no difference, however, the following is neater:
String[] suit = {
"spades",
"hearts",
"diamonds",
"clubs"
};
But, if you want to pass an array into a method you have to call it like this:
myMethod(new String[] {"spades", "hearts"});
myMethod({"spades", "hearts"}); //won't compile!
If you want to use an active connection you can also use http://httpbin.org/delay/#, where # is the time you want their server to wait before sending a response. As long as your timeout is shorter than the delay ... should simulate the effect. I've successfully used it with the python requests package.
You may want to modify your request if you're sending anything sensitive - no idea what happens to the data sent to them.
Reflection can help you.
var someObject;
var propertyName = "PropertyWhichValueYouWantToKnow";
var propertyName = someObject.GetType().GetProperty(propertyName).GetValue(someObject, null);
I suggest to use sticky js it's have best option ever i have seen. nothing to do just ad this js on you
https://raw.githubusercontent.com/garand/sticky/master/jquery.sticky.js
and use below code :
<script>
$(document).ready(function(){
$("#sticker").sticky({topSpacing:0});
});
</script>
Its git repo: https://github.com/garand/sticky
When you need padding inside the JPanel
generally you add padding with the layout manager you are using. There are cases that you can just expand the border of the JPanel
.
For anyone coming along later, like I did, and seeing this...
I was receiving the same error because I did not have the extension "enabled" in my php.ini file. I would imagine you might also get this error if you have recently upgraded your php version and did not properly update your php.ini file.
If you are receiving this error shortly after upgrading your php version, the info below might help you out:
PHP 7.4 slightly changed its syntax in the php.ini file.
Now, to enable the mysql pdo, make sure extension=pdo_mysql
is uncommented in your php.ini file. (line 931 in the default php.ini setup)
The line used to be:
extension=php_pdo_mysql.dll on Windows
extension=php_pdo_mysql.so on Linux/Mac
as Sk8erPeter pointed out. but the .dll and .so endings are to be deprecated and so it is best practice to begin getting rid of those endings and using just extension=<ext>
The below is pulled from the default php.ini-production file from the php 7.4 zip download under "Dynamic Extensions":
Note : The syntax used in previous PHP versions ('extension=.so' and 'extension='php_.dll') is supported for legacy reasons and may be deprecated in a future PHP major version. So, when it is possible, please move to the new (
extension=<ext>
) syntax.
On newer versions of PHP on Windows, like PHP 7.x, the corresponding configuration lines suggested on previous answers here, have changed. You need to uncomment (remove the ; at the beginning of the line) the following line:
extension_dir = "ext"
extension=curl
I use the ManagementObjectSearcher
of namespace System.Management
Example:
string r = "";
using (ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem"))
{
ManagementObjectCollection information = searcher.Get();
if (information != null)
{
foreach (ManagementObject obj in information)
{
r = obj["Caption"].ToString() + " - " + obj["OSArchitecture"].ToString();
}
}
r = r.Replace("NT 5.1.2600", "XP");
r = r.Replace("NT 5.2.3790", "Server 2003");
MessageBox.Show(r);
}
Do not forget to add the reference to the Assembly
System.Management.dll
and put the using:using System.Management;
Result:
If DavidG is correct that it didn't pop the stash because of the merge conflict, then you merely need to clean up your working directory. Quickly git commit
everything you care about. (You can reset
or squash
the commit later if you're not done.) Then with everything you care about safe, git reset
everything else that git stash pop
dumped into your working directory.
Sub CopyValueWithFormatting()
Sheet1.Range("A1").Copy
With Sheet2.Range("B1")
.PasteSpecial xlPasteFormats
.PasteSpecial xlPasteValues
End With
End Sub
using System.Windows.Forms;
...
MessageBox.Show("Hello World!");
Accordingly to W3C checked input's attribute can be absent/ommited or have "checked" as its value. This does not invalidate other values because there's no restriction to the browser implementation to allow values like "true", "on", "yes" and so on. To guarantee that you'll write a cross-browser checkbox/radio use checked="checked", as recommended by W3C.
disabled, readonly and ismap input's attributes go on the same way.
EDITED
empty is not a valid value for checked, disabled, readonly and ismap input's attributes, as warned by @Quentin
MessageBox like others said, or RegisterClientScriptBlock if you want something more arbitrary, but your use case is extremely dubious. Merely displaying exceptions is not something you want to do in production code - you don't want to expose that detail publicly and you do want to record it with proper logging privately.
In my case, the source and/or old object file(s) were locked (read-only) by a semi-crashed IDE or from a backup cloud service that stopped working properly. Restarting all programs and services that were associated with the folder structure solved the problem.
Using iReport designer 5.6.0, if you wish to compile multiple jrxml files without previewing - go to Tools -> Massive Processing Tool. Select Elaboration Type as "Compile Files", select the folder where all your jrxml reports are stored, and compile them in a batch.
Several years on and I had a similar issue. In my case there were heavily nested interfaces and a preference for generating the concrete classes at runtime so that It would work with a generic class.
I decided to create a proxy class at run time that wraps the object returned by Newtonsoft.
The advantage of this approach is that it does not require a concrete implementation of the class and can handle any depth of nested interfaces automatically. You can see more about it on my blog.
using Castle.DynamicProxy;
using Newtonsoft.Json.Linq;
using System;
using System.Reflection;
namespace LL.Utilities.Std.Json
{
public static class JObjectExtension
{
private static ProxyGenerator _generator = new ProxyGenerator();
public static dynamic toProxy(this JObject targetObject, Type interfaceType)
{
return _generator.CreateInterfaceProxyWithoutTarget(interfaceType, new JObjectInterceptor(targetObject));
}
public static InterfaceType toProxy<InterfaceType>(this JObject targetObject)
{
return toProxy(targetObject, typeof(InterfaceType));
}
}
[Serializable]
public class JObjectInterceptor : IInterceptor
{
private JObject _target;
public JObjectInterceptor(JObject target)
{
_target = target;
}
public void Intercept(IInvocation invocation)
{
var methodName = invocation.Method.Name;
if(invocation.Method.IsSpecialName && methodName.StartsWith("get_"))
{
var returnType = invocation.Method.ReturnType;
methodName = methodName.Substring(4);
if (_target == null || _target[methodName] == null)
{
if (returnType.GetTypeInfo().IsPrimitive || returnType.Equals(typeof(string)))
{
invocation.ReturnValue = null;
return;
}
}
if (returnType.GetTypeInfo().IsPrimitive || returnType.Equals(typeof(string)))
{
invocation.ReturnValue = _target[methodName].ToObject(returnType);
}
else
{
invocation.ReturnValue = ((JObject)_target[methodName]).toProxy(returnType);
}
}
else
{
throw new NotImplementedException("Only get accessors are implemented in proxy");
}
}
}
}
Usage:
var jObj = JObject.Parse(input);
InterfaceType proxyObject = jObj.toProxy<InterfaceType>();
<form id="mailajob" method="post" action="emailthijob.php">
<input type="hidden" name="action" value="emailjob" />
<input type="hidden" name="jid" value="<?php echo $jobid; ?>" />
</form>
<a class="emailjob" onclick="document.getElementById('mailajob').submit();">Email this job</a>
SELECT CONVERT_TZ() will work for that.but its not working for me.
Why, what error do you get?
SELECT CONVERT_TZ(displaytime,'GMT','MET');
should work if your column type is timestamp, or date
http://dev.mysql.com/doc/refman/5.0/en/date-and-time-functions.html#function_convert-tz
Test how this works:
SELECT CONVERT_TZ(a_ad_display.displaytime,'+00:00','+04:00');
Check your timezone-table
SELECT * FROM mysql.time_zone;
SELECT * FROM mysql.time_zone_name;
http://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html
If those tables are empty, you have not initialized your timezone tables. According to link above you can use mysql_tzinfo_to_sql
program to load the Time Zone Tables. Please try this
shell> mysql_tzinfo_to_sql /usr/share/zoneinfo
or if not working read more: http://dev.mysql.com/doc/refman/5.5/en/mysql-tzinfo-to-sql.html
Set the step
attribute to 1
:
<input type="number" step="1" />
This seems a bit buggy in Chrome right now so it might not be the best solution at the moment.
A better solution is to use the pattern
attribute, that uses a regular expression to match the input:
<input type="text" pattern="\d*" />
\d
is the regular expression for a number, *
means that it accepts more than one of them.
Here is the demo: http://jsfiddle.net/b8NrE/1/
This is what I usually need in a script/function:
while true; do
read -p "Continue [Y/n]? " -n 1 -r -e yn
case "${yn:-Y}" in
[YyZzOoJj]* ) echo; break ;;
[Nn]* ) [[ "$0" = "$BASH_SOURCE" ]] && exit 1 || return 1 ;; # handle exits from shell or function but don't exit interactive shell
* ) echo "Please answer yes or no.";;
esac
done
echo "and off we go!"
You probably want to add one day rather than 24 hours. Not all days have 24 hours due to (among other circumstances) daylight saving time:
strtotime('+1 day', $timestamp);
You can also perform Implicit Type Conversions with template literals. Example:
let fruits = ["mango","orange","pineapple","papaya"];
console.log(`My favourite fruits are ${fruits}`);
// My favourite fruits are mango,orange,pineapple,papaya
__del__
is a finalizer. It is called when an object is garbage collected which happens at some point after all references to the object have been deleted.
In a simple case this could be right after you say del x
or, if x
is a local variable, after the function ends. In particular, unless there are circular references, CPython (the standard Python implementation) will garbage collect immediately.
However, this is an implementation detail of CPython. The only required property of Python garbage collection is that it happens after all references have been deleted, so this might not necessary happen right after and might not happen at all.
Even more, variables can live for a long time for many reasons, e.g. a propagating exception or module introspection can keep variable reference count greater than 0. Also, variable can be a part of cycle of references — CPython with garbage collection turned on breaks most, but not all, such cycles, and even then only periodically.
Since you have no guarantee it's executed, one should never put the code that you need to be run into __del__()
— instead, this code belongs to finally
clause of the try
block or to a context manager in a with
statement. However, there are valid use cases for __del__
: e.g. if an object X
references Y
and also keeps a copy of Y
reference in a global cache
(cache['X -> Y'] = Y
) then it would be polite for X.__del__
to also delete the cache entry.
If you know that the destructor provides (in violation of the above guideline) a required cleanup, you might want to call it directly, since there is nothing special about it as a method: x.__del__()
. Obviously, you should you do so only if you know that it doesn't mind to be called twice. Or, as a last resort, you can redefine this method using
type(x).__del__ = my_safe_cleanup_method
specifically I want to overload
Boolean.Parse
to allow an int argument.
Would an extension for int work?
public static bool ToBoolean(this int source){
// do it
// return it
}
Then you can call it like this:
int x = 1;
bool y = x.ToBoolean();
add below code to activity_main.xml file:
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="buttonClick"
android:text="@string/button" />
and just add the below method to the MainActivity.java file:
public void buttonClick(View view){
Intent i = new Intent(getApplicationContext()SendPhotos.class);
startActivity(i);
}
$output = preg_replace('/\s+/', ' ',$input);
\s is shorthand for [ \t\n\r]
. Multiple spaces will be replaced with single space.
I am late for the party. Try replacing as below, mine worked perfectly- "DOMDocument" to "MSXML2.DOMDocument60" "XMLHTTP" to "MSXML2.XMLHTTP60"
An easy foolproof way to UNDO local file changes since the last commit is to place them in a new branch:
git branch changes
git checkout changes
git add .
git commit
This leaves the changes in the new branch. Return to the original branch to find it back to the last commit:
git checkout master
The new branch is a good place to practice different ways to revert changes without risk of messing up the original branch.
Check Below Codes :
1. SynchronousRequest
Swift 1.2
let urlPath: String = "YOUR_URL_HERE"
var url: NSURL = NSURL(string: urlPath)!
var request1: NSURLRequest = NSURLRequest(URL: url)
var response: AutoreleasingUnsafeMutablePointer<NSURLResponse?>=nil
var dataVal: NSData = NSURLConnection.sendSynchronousRequest(request1, returningResponse: response, error:nil)!
var err: NSError
println(response)
var jsonResult: NSDictionary = NSJSONSerialization.JSONObjectWithData(dataVal, options: NSJSONReadingOptions.MutableContainers, error: &err) as? NSDictionary
println("Synchronous\(jsonResult)")
Swift 2.0 +
let urlPath: String = "YOUR_URL_HERE"
let url: NSURL = NSURL(string: urlPath)!
let request1: NSURLRequest = NSURLRequest(URL: url)
let response: AutoreleasingUnsafeMutablePointer<NSURLResponse?>=nil
do{
let dataVal = try NSURLConnection.sendSynchronousRequest(request1, returningResponse: response)
print(response)
do {
if let jsonResult = try NSJSONSerialization.JSONObjectWithData(dataVal, options: []) as? NSDictionary {
print("Synchronous\(jsonResult)")
}
} catch let error as NSError {
print(error.localizedDescription)
}
}catch let error as NSError
{
print(error.localizedDescription)
}
2. AsynchonousRequest
Swift 1.2
let urlPath: String = "YOUR_URL_HERE"
var url: NSURL = NSURL(string: urlPath)!
var request1: NSURLRequest = NSURLRequest(URL: url)
let queue:NSOperationQueue = NSOperationQueue()
NSURLConnection.sendAsynchronousRequest(request1, queue: queue, completionHandler:{ (response: NSURLResponse!, data: NSData!, error: NSError!) -> Void in
var err: NSError
var jsonResult: NSDictionary = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: nil) as NSDictionary
println("Asynchronous\(jsonResult)")
})
Swift 2.0 +
let urlPath: String = "YOUR_URL_HERE"
let url: NSURL = NSURL(string: urlPath)!
let request1: NSURLRequest = NSURLRequest(URL: url)
let queue:NSOperationQueue = NSOperationQueue()
NSURLConnection.sendAsynchronousRequest(request1, queue: queue, completionHandler:{ (response: NSURLResponse?, data: NSData?, error: NSError?) -> Void in
do {
if let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? NSDictionary {
print("ASynchronous\(jsonResult)")
}
} catch let error as NSError {
print(error.localizedDescription)
}
})
3. As usual URL connection
Swift 1.2
var dataVal = NSMutableData()
let urlPath: String = "YOUR URL HERE"
var url: NSURL = NSURL(string: urlPath)!
var request: NSURLRequest = NSURLRequest(URL: url)
var connection: NSURLConnection = NSURLConnection(request: request, delegate: self, startImmediately: true)!
connection.start()
Then
func connection(connection: NSURLConnection!, didReceiveData data: NSData!){
self.dataVal?.appendData(data)
}
func connectionDidFinishLoading(connection: NSURLConnection!)
{
var error: NSErrorPointer=nil
var jsonResult: NSDictionary = NSJSONSerialization.JSONObjectWithData(dataVal!, options: NSJSONReadingOptions.MutableContainers, error: error) as NSDictionary
println(jsonResult)
}
Swift 2.0 +
var dataVal = NSMutableData()
let urlPath: String = "YOUR URL HERE"
var url: NSURL = NSURL(string: urlPath)!
var request: NSURLRequest = NSURLRequest(URL: url)
var connection: NSURLConnection = NSURLConnection(request: request, delegate: self, startImmediately: true)!
connection.start()
Then
func connection(connection: NSURLConnection!, didReceiveData data: NSData!){
dataVal.appendData(data)
}
func connectionDidFinishLoading(connection: NSURLConnection!)
{
do {
if let jsonResult = try NSJSONSerialization.JSONObjectWithData(dataVal, options: []) as? NSDictionary {
print(jsonResult)
}
} catch let error as NSError {
print(error.localizedDescription)
}
}
4. Asynchronous POST Request
Swift 1.2
let urlPath: String = "YOUR URL HERE"
var url: NSURL = NSURL(string: urlPath)!
var request1: NSMutableURLRequest = NSMutableURLRequest(URL: url)
request1.HTTPMethod = "POST"
var stringPost="deviceToken=123456" // Key and Value
let data = stringPost.dataUsingEncoding(NSUTF8StringEncoding)
request1.timeoutInterval = 60
request1.HTTPBody=data
request1.HTTPShouldHandleCookies=false
let queue:NSOperationQueue = NSOperationQueue()
NSURLConnection.sendAsynchronousRequest(request1, queue: queue, completionHandler:{ (response: NSURLResponse!, data: NSData!, error: NSError!) -> Void in
var err: NSError
var jsonResult: NSDictionary = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: nil) as NSDictionary
println("AsSynchronous\(jsonResult)")
})
Swift 2.0 +
let urlPath: String = "YOUR URL HERE"
let url: NSURL = NSURL(string: urlPath)!
let request1: NSMutableURLRequest = NSMutableURLRequest(URL: url)
request1.HTTPMethod = "POST"
let stringPost="deviceToken=123456" // Key and Value
let data = stringPost.dataUsingEncoding(NSUTF8StringEncoding)
request1.timeoutInterval = 60
request1.HTTPBody=data
request1.HTTPShouldHandleCookies=false
let queue:NSOperationQueue = NSOperationQueue()
NSURLConnection.sendAsynchronousRequest(request1, queue: queue, completionHandler:{ (response: NSURLResponse?, data: NSData?, error: NSError?) -> Void in
do {
if let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? NSDictionary {
print("ASynchronous\(jsonResult)")
}
} catch let error as NSError {
print(error.localizedDescription)
}
})
5. Asynchronous GET Request
Swift 1.2
let urlPath: String = "YOUR URL HERE"
var url: NSURL = NSURL(string: urlPath)!
var request1: NSMutableURLRequest = NSMutableURLRequest(URL: url)
request1.HTTPMethod = "GET"
request1.timeoutInterval = 60
let queue:NSOperationQueue = NSOperationQueue()
NSURLConnection.sendAsynchronousRequest(request1, queue: queue, completionHandler:{ (response: NSURLResponse!, data: NSData!, error: NSError!) -> Void in
var err: NSError
var jsonResult: NSDictionary = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: nil) as NSDictionary
println("AsSynchronous\(jsonResult)")
})
Swift 2.0 +
let urlPath: String = "YOUR URL HERE"
let url: NSURL = NSURL(string: urlPath)!
let request1: NSMutableURLRequest = NSMutableURLRequest(URL: url)
request1.HTTPMethod = "GET"
let queue:NSOperationQueue = NSOperationQueue()
NSURLConnection.sendAsynchronousRequest(request1, queue: queue, completionHandler:{ (response: NSURLResponse?, data: NSData?, error: NSError?) -> Void in
do {
if let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? NSDictionary {
print("ASynchronous\(jsonResult)")
}
} catch let error as NSError {
print(error.localizedDescription)
}
})
6. Image(File) Upload
Swift 2.0 +
let mainURL = "YOUR_URL_HERE"
let url = NSURL(string: mainURL)
let request = NSMutableURLRequest(URL: url!)
let boundary = "78876565564454554547676"
request.addValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
request.HTTPMethod = "POST" // POST OR PUT What you want
let session = NSURLSession(configuration:NSURLSessionConfiguration.defaultSessionConfiguration(), delegate: nil, delegateQueue: nil)
let imageData = UIImageJPEGRepresentation(UIImage(named: "Test.jpeg")!, 1)
var body = NSMutableData()
body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
// Append your parameters
body.appendData("Content-Disposition: form-data; name=\"name\"\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("PREMKUMAR\r\n".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)!)
body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition: form-data; name=\"description\"\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("IOS_DEVELOPER\r\n".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)!)
body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
// Append your Image/File Data
var imageNameval = "HELLO.jpg"
body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition: form-data; name=\"profile_photo\"; filename=\"\(imageNameval)\"\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Type: image/jpeg\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData(imageData!)
body.appendData("\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("--\(boundary)--\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
request.HTTPBody = body
let dataTask = session.dataTaskWithRequest(request) { (data, response, error) -> Void in
if error != nil {
//handle error
}
else {
let outputString : NSString = NSString(data:data!, encoding:NSUTF8StringEncoding)!
print("Response:\(outputString)")
}
}
dataTask.resume()
7. GET,POST,Etc Swift 3.0 +
let request = NSMutableURLRequest(url: URL(string: "YOUR_URL_HERE" ,param: param))!,
cachePolicy: .useProtocolCachePolicy,
timeoutInterval:60)
request.httpMethod = "POST" // POST ,GET, PUT What you want
let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest) {data,response,error in
do {
if let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? NSDictionary {
print("ASynchronous\(jsonResult)")
}
} catch let error as NSError {
print(error.localizedDescription)
}
}
dataTask.resume()
The 2020 answer: it probably doesn't matter
The best answer here was from 2012, so I decided to test for myself. On Chrome for Android, the JS and CSS resources are downloaded in parallel and I could not detect a difference in page rendering speed.
I included a more detailed writeup on my blog
Use the --force
(-f
) flag on your mysql import. Rather than stopping on the offending statement, MySQL will continue and just log the errors to the console.
For example:
mysql -u userName -p -f -D dbName < script.sql
The /Date(ms + timezone)/
is a ASP.NET syntax for JSON dates. You might want to use a library like momentjs for parsing such dates. It would come in handy if you need to manipulate or print the dates any time later.
Yes. You should add this file to your version control system, i.e. You should commit it.
This file is intended to be committed into source repositories
You can read more about what it is/what it does here:
package-lock.json is automatically generated for any operations where npm modifies either the node_modules tree, or package.json. It describes the exact tree that was generated, such that subsequent installs are able to generate identical trees, regardless of intermediate dependency updates.
You can build the Dockerfile from the parent directory:
docker build -t <some tag> -f <dir/dir/Dockerfile> .
I got this error when I tried to install pymssql even though Visual C++ 2015 (14.0) is installed in my system.
I resolved this error by downloading the .whl file of pymssql from here.
Once downloaded, it can be installed by the following command :
pip install python_package.whl
Hope this helps
$('.block').scrollTop($('.block')[0].scrollHeight);
I use this code to scroll the chat when new messages arrive.
Add name attribute to your option:
<option value="0" name="Chicken">Chicken</option>
With that you can use the HTMLOptionsCollection.namedItem("Chicken").value to set the value of your select element.
Simply put this in you UITableView delegate class file (.m):
- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
UIColor *color = ((indexPath.row % 2) == 0) ? [UIColor colorWithRed:255.0/255 green:255.0/255 blue:145.0/255 alpha:1] : [UIColor clearColor];
cell.backgroundColor = color;
}
#!/bin/bash
echo "The number of arguments is: $#"
a=${@}
echo "The total length of all arguments is: ${#a}: "
count=0
for var in "$@"
do
echo "The length of argument '$var' is: ${#var}"
(( count++ ))
(( accum += ${#var} ))
done
echo "The counted number of arguments is: $count"
echo "The accumulated length of all arguments is: $accum"
You can do it as follows:
{'Create\nYour Account'}
This question is old but thought I'd add here.. https://www.simple-talk.com/sql/t-sql-programming/dependencies-and-references-in-sql-server/ talks about different options pros and cons and provides stored proc (It_Depends) that produces tree like result of dependencies very similar to SSMS
The easiest way would be to select Relativelayout from the Pallete, and then use it.
I just want to share some of my experience with the accepted answer. I did all steps and all was fine before I ran the last step:
git svn dcommit
$ git svn dcommit
Use of uninitialized value $u in substitution (s///) at /usr/lib/perl5/vendor_perl/5.22/Git/SVN.pm line 101.
Use of uninitialized value $u in concatenation (.) or string at /usr/lib/perl5/vendor_perl/5.22/Git/SVN.pm line 101. refs/remotes/origin/HEAD: 'https://192.168.2.101/svn/PROJECT_NAME' not found in ''
I found the thread https://github.com/nirvdrum/svn2git/issues/50 and finally the solution which I applied in the following file in line 101 /usr/lib/perl5/vendor_perl/5.22/Git/SVN.pm
I replaced
$u =~ s!^\Q$url\E(/|$)!! or die
with
if (!$u) {
$u = $pathname;
}
else {
$u =~ s!^\Q$url\E(/|$)!! or die
"$refname: '$url' not found in '$u'\n";
}
This fixed my issue.
In addition to the solution you accepted, you could also implement the special __lt__()
("less than") method on the class. The sort()
method (and the sorted()
function) will then be able to compare the objects, and thereby sort them. This works best when you will only ever sort them on this attribute, however.
class Foo(object):
def __init__(self, score):
self.score = score
def __lt__(self, other):
return self.score < other.score
l = [Foo(3), Foo(1), Foo(2)]
l.sort()
function countWords(str) {
var regEx = /([^\u0000-\u007F]|\w)+/g;
return str.match(regEx).length;
}
Explanation:
/([^\u0000-\u007F]|\w)
matches word characters - which is great -> regex does the heavy lifting for us. (This pattern is based on the following SO answer: https://stackoverflow.com/a/35743562/1806956 by @Landeeyo)
+
matches the whole string of the previously specified word characters - so we basically group word characters.
/g
means it keeps looking till the end.
str.match(regEx)
returns an array of the found words - so we count its length.
The linked docs give the following example:
cursor.execute ("""
UPDATE animal SET name = %s
WHERE name = %s
""", ("snake", "turtle"))
print "Number of rows updated: %d" % cursor.rowcount
So you just need to adapt this to your own code - example:
cursor.execute ("""
INSERT INTO Songs (SongName, SongArtist, SongAlbum, SongGenre, SongLength, SongLocation)
VALUES
(%s, %s, %s, %s, %s, %s)
""", (var1, var2, var3, var4, var5, var6))
(If SongLength is numeric, you may need to use %d instead of %s).
This works wonderfully for me:
CREATE FUNCTION [dbo].[StartOfWeek] ( @INPUTDATE DATETIME ) RETURNS DATETIME AS BEGIN -- THIS does not work in function. -- SET DATEFIRST 1 -- set monday to be the first day of week. DECLARE @DOW INT -- to store day of week SET @INPUTDATE = CONVERT(VARCHAR(10), @INPUTDATE, 111) SET @DOW = DATEPART(DW, @INPUTDATE) -- Magic convertion of monday to 1, tuesday to 2, etc. -- irrespect what SQL server thinks about start of the week. -- But here we have sunday marked as 0, but we fix this later. SET @DOW = (@DOW + @@DATEFIRST - 1) %7 IF @DOW = 0 SET @DOW = 7 -- fix for sunday RETURN DATEADD(DD, 1 - @DOW,@INPUTDATE) END
Python
As @numeral correctly said, column._jc.toString()
works fine in case of unaliased columns.
In case of aliased columns (i.e. column.alias("whatever")
) the alias can be extracted, even without the usage of regular expressions: str(column).split(" AS ")[1].split("`")[1]
.
I don't know Scala syntax, but I'm sure It can be done the same.
$sth = mysqli_query($conn, "SELECT ...");
$rows = array();
while($r = mysqli_fetch_assoc($sth)) {
$rows[] = $r;
}
print json_encode($rows);
The function json_encode
needs PHP >= 5.2 and the php-json package - as mentioned here
NOTE: mysql
is deprecated as of PHP 5.5.0, use mysqli
extension instead http://php.net/manual/en/migration55.deprecated.php.
@Casperah pointed out that i'm thinking about it wrong:
TextBox
doesn't have linesThe question then is how to accomplish what i want, rather than what WinForms lets me.
There are subtle bugs in the other given variants:
textBox1.AppendText("Hello" + Environment.NewLine);
textBox1.AppendText("Hello" + "\r\n");
textBox1.Text += "Hello\r\n"
textbox1.Text += System.Environment.NewLine + "brown";
They either append or prepend a newline when one (might) not be required.
So, extension helper:
public static class WinFormsExtensions
{
public static void AppendLine(this TextBox source, string value)
{
if (source.Text.Length==0)
source.Text = value;
else
source.AppendText("\r\n"+value);
}
}
So now:
textBox1.Clear();
textBox1.AppendLine("red");
textBox1.AppendLine("green");
textBox1.AppendLine("blue");
and
textBox1.AppendLine(String.Format("Processing file {0}", filename));
Note: Any code is released into the public domain. No attribution required.
You can try this
- (NSString *)stripRemoveSpaceFrom:(NSString *)str {
while ([str rangeOfString:@" "].location != NSNotFound) {
str = [str stringByReplacingOccurrencesOfString:@" " withString:@""];
}
return str;
}
Hope this will help you out.
On Mac you need cmd + / to comment and uncomment.
<html>
<head>
<script type="text/javascript">
function striptag(){
var html = /(<([^>]+)>)/gi;
for (i=0; i < arguments.length; i++)
arguments[i].value=arguments[i].value.replace(html, "")
}
</script>
</head>
<body>
<form name="myform">
<textarea class="comment" title="comment" name=comment rows=4 cols=40></textarea><br>
<input type="button" value="Remove HTML Tags" onClick="striptag(this.form.comment)">
</form>
</body>
</html>
You can use multiple id
's the way you wrote:
$('#upload_link, #upload_link2, #upload_link3')
However, that doesn't mean that those ids exist within the DOM when you've executed your code. It also doesn't mean that upload
is a legitimate function. It also doesn't mean that upload
has been built in a way that allows for multiple elements in a selection.
upload
is a custom jQuery plugin, so you'll have to show what's going on with upload
for us to be able to help you.
You could also create the input button in this way:
var button = '<input type="button" id="questionButton" value='+variable+'> <br />';
It might be the syntax of the Button creation that is off somehow.
Yeah, you can call other method before of the call base or this!
public class MyException : Exception
{
public MyException(int number) : base(ConvertToString(number))
{
}
private static string ConvertToString(int number)
{
return number.toString()
}
}
currentDay = '2019-12-06';
currentDay = new Date(currentDay).add(Date.DAY, +1).format('Y-m-d');
You could try this:
Simply place the code in a style tag in the head of the html file
<style>_x000D_
.jumbotron {_x000D_
background: url("http://www.californiafootgolfclub.com/static/img/footgolf-1.jpg") center center / cover no-repeat;_x000D_
}_x000D_
</style>
_x000D_
or put it in a separate css file as shown below
.jumbotron {_x000D_
background: url("http://www.californiafootgolfclub.com/static/img/footgolf-1.jpg") center center / cover no-repeat;_x000D_
}
_x000D_
use center center to center the image horizontally and vertically. use cover to make the image fill out the jumbotron space and finally no-repeat so that the image is not repeated.
This came from standford's sna free tutorial and it states that ...
# Reachability can only be computed on one vertex at a time. To
# get graph-wide statistics, change the value of "vertex"
# manually or write a for loop. (Remember that, unlike R objects,
# igraph objects are numbered from 0.)
ok, so when ever using igraph, the first roll/column is 0 other than 1, but matrix starts at 1, thus for any calculation under igraph, you would need x-1, shown at
this_node_reach <- subcomponent(g, (i - 1), mode = m)
but for the alter calculation, there is a typo here
alter = this_node_reach[j] + 1
delete +1 and it will work alright
I've found in www.laughing-buddha.net/php/lib/dirlist/ a function that returns an array containing a list of a directory's contents.
Also look at php.net http://es.php.net/manual/es/ref.filesystem.php where you'll find additional functions for working with files in php.
$fields = array_flip($fields);
unset($fields['myvalue']);
$fields = array_flip($fields);
It depends on the server configuration or the relevant directives session.gc_maxlifetime in php.ini
.
Typically the default is 24 minutes (1440 seconds), but your webhost may have altered the default to something else.
Private Sub Main()
Dim value = getValue()
'do something with value
End Sub
Private Function getValue() As Integer
Return 3
End Function
If you install the third party package:
npm i cordova-check-plugins
You can then run a simple command of
cordova-check-plugins --update=auto --force
Keep in mind forcing anything always comes with potential risks of breaking changes.
As other answers have stated, the connecting NPM packages that manage these plugins also require a consequent update when updating the plugins, so now you can check them with:
npm outdated
And then sweeping update them with
npm update
Now tentatively serve your app again and check all of the things that have potentially gone awry from breaking changes. The joy of software development! :)
Just an update:
You should use ::ng-deep
instead of /deep/
which seems to be deprecated.
Per documentation:
The shadow-piercing descendant combinator is deprecated and support is being removed from major browsers and tools. As such we plan to drop support in Angular (for all 3 of /deep/, >>> and ::ng-deep). Until then ::ng-deep should be preferred for a broader compatibility with the tools.
You can find it here
Add the following JPA dependency.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
Use while loop like this:
while IFS= read -r line || [ -n "$line" ]; do
echo "$line"
done <file
Or using grep
with while loop:
while IFS= read -r line; do
echo "$line"
done < <(grep "" file)
Using grep .
instead of grep ""
will skip the empty lines.
Note:
Using IFS=
keeps any line indentation intact.
File without a newline at the end isn't a standard unix text file.
The expression df1$id %in% idNums1
produces a logical vector. To negate it, you need to negate the whole vector:
!(df1$id %in% idNums1)
If you want to find directories, including those that are marked "hidden" and "system", try this (requires .NET V4):
FileAttributes fa = File.GetAttributes(path);
if(fa.HasFlag(FileAttributes.Directory))
git pull origin develop
Since pulling a branch into another directly merges them together
Please check if any jar files missing particularly jars are may have been taken as locally, so put into lib folder then create the WAR file
When you install anaconda on windows now, it doesn't automatically add Python or Conda to your path.
While during the installation process you can check this box, you can also add python and/or python to your path manually (as you can see below the image)
If you don’t know where your conda and/or python is, you type the following commands into your anaconda prompt
where python
where conda
Next, you can add Python and Conda to your path by using the setx command in your command prompt (replace C:\Users\mgalarnyk\Anaconda2
with the results you got when running where python
and where conda
).
SETX PATH "%PATH%;C:\Users\mgalarnyk\Anaconda2\Scripts;C:\Users\mgalarnyk\Anaconda2"
Next close that command prompt and open a new one. Congrats you can now use conda and python
Source: https://medium.com/@GalarnykMichael/install-python-on-windows-anaconda-c63c7c3d1444
I saw this thread when I was trying to split a file in files with 100 000 lines. A better solution than sed for that is:
split -l 100000 database.sql database-
It will give files like:
database-aaa
database-aab
database-aac
...
When connecting to VPN every message goes through VPN server and it could not be forwarding your messages to that port SQL server is working on.
Try
disable VPN settings->Properties->TCP/IP properties->Advanced->Use default gateway on remote network.
This way you will first try to connect local IP of SQL server and only then use VPN server to forward you
In my case the error was still there, because my system used upgraded Java. If you are using Java 10, modify the compileOptions:
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_10
targetCompatibility JavaVersion.VERSION_1_10
}
Realistically for an application, more then 4000-5000 open sockets on a single machine becomes impractical. Just checking for activity on all the sockets and managing them starts to become a performance issue - especially in real-time environments.
In Python 3 the following will work. I am using the lower level http.client from the standard library. Also check out section 2 of rfc2617 for details of basic authorization. This code won't check the certificate is valid, but will set up a https connection. See the http.client docs on how to do that.
from http.client import HTTPSConnection
from base64 import b64encode
#This sets up the https connection
c = HTTPSConnection("www.google.com")
#we need to base 64 encode it
#and then decode it to acsii as python 3 stores it as a byte string
userAndPass = b64encode(b"username:password").decode("ascii")
headers = { 'Authorization' : 'Basic %s' % userAndPass }
#then connect
c.request('GET', '/', headers=headers)
#get the response back
res = c.getresponse()
# at this point you could check the status etc
# this gets the page text
data = res.read()
Just to clarify my comment (it's illegible in a single line)
I think the best answer is the comment by Mike Chambers in this link (http://www.judahfrangipane.com/blog/2007/02/15/error-2032-stream-error/) by Hunter McMillen.
A note from Mike Chambers:
If you run into this using URLLoader, listen for the:
flash.events.HTTPStatusEvent.HTTP_STATUS
and in AIR :
flash.events.HTTPStatusEvent.HTTP_RESPONSE_STATUS
It should give you some more information (such as the status code being returned from the server).
Add the below code in your page. Trust me, no changes made to button events, to disable/enable button simply add/remove the button class in Javascript.
Method 1
<asp Button ID="btnSave" CssClass="disabledContent" runat="server" />
<style type="text/css">
.disabledContent
{
cursor: not-allowed;
background-color: rgb(229, 229, 229) !important;
}
.disabledContent > *
{
pointer-events:none;
}
</style>
Method 2
<asp Button ID="btnSubmit" CssClass="btn-disable" runat="server" />
<style type="text/css">
.btn-disable
{
cursor: not-allowed;
pointer-events: none;
/*Button disabled - CSS color class*/
color: #c0c0c0;
background-color: #ffffff;
}
</style>
The answers here are not actually completely correct. Close, but there's an edge case.
The difference is that $('body') actually selects the element by the tag name, whereas document.body references the direct object on the document.
That means if you (or a rogue script) overwrites the document.body element (shame!) $('body') will still work, but $(document.body) will not. So by definition they're not equivalent.
I'd venture to guess there are other edge cases (such as globally id'ed elements in IE) that would also trigger what amounts to an overwritten body element on the document object, and the same situation would apply.
Get files in all subdirs
const fs=require('fs');
function getFiles (dir, files_){
files_ = files_ || [];
var files = fs.readdirSync(dir);
for (var i in files){
var name = dir + '/' + files[i];
if (fs.statSync(name).isDirectory()){
getFiles(name, files_);
} else {
files_.push(name);
}
}
return files_;
}
console.log(getFiles('path/to/dir'))
put the logic in
afterTextChanged(Editable s) {
string str = s.toString()
// use the string str
}
I'll throw jsTree into the ring, too. I've found it fairly adaptable to your particular situation. It's packed as a jQuery plugin.
It can run from a variety of data sources, but my favorite is a simple nested list, as described by @joe_coolish or here:
<ul>
<li>
Item 1
<ul>
<li>Item 1.1</li>
...
</ul>
</li>
...
</ul>
This structure fails gracefully into a static tree when JS is not available in the client, and is easy enough to read and understand from a coding perspective.
I'll add a bit to this old thread.
Usually you would use
$ echo "$FOO"
However, I've had problems even with this syntax. Consider the following script.
#!/bin/bash
curl_opts="-s --noproxy * -O"
curl $curl_opts "$1"
The *
needs to be passed verbatim to curl
, but the same problems will arise. The above example won't work (it will expand to filenames in the current directory) and neither will \*
. You also can't quote $curl_opts
because it will be recognized as a single (invalid) option to curl
.
curl: option -s --noproxy * -O: is unknown
curl: try 'curl --help' or 'curl --manual' for more information
Therefore I would recommend the use of the bash
variable $GLOBIGNORE
to prevent filename expansion altogether if applied to the global pattern, or use the set -f
built-in flag.
#!/bin/bash
GLOBIGNORE="*"
curl_opts="-s --noproxy * -O"
curl $curl_opts "$1" ## no filename expansion
Applying to your original example:
me$ FOO="BAR * BAR"
me$ echo $FOO
BAR file1 file2 file3 file4 BAR
me$ set -f
me$ echo $FOO
BAR * BAR
me$ set +f
me$ GLOBIGNORE=*
me$ echo $FOO
BAR * BAR
You opened a lot of connections and that's the issue. I think in your code, you did not close the opened connection.
A database bounce could temporarily solve, but will re-appear when you do consecutive execution. Also, it should be verified the number of concurrent connections to the database. If maximum DB processes parameter has been reached this is a common symptom.
Courtesy of this thread: https://community.oracle.com/thread/362226?tstart=-1
Remove www. from beginning of string, this is the easiest way (ltrim)
$a="www.google.com";
echo ltrim($a, "www.");
I uninstalled puppeteer, mocha and chai
using
npm uninstall puppeteer mocha chai
from the command line and then reinstalled using
npm install puppeteer mocha chai
and the error message simply never showed up
Modifying MrWonderful code
import sys
def print_dictionary(obj, ident):
if type(obj) == dict:
for k, v in obj.items():
sys.stdout.write(ident)
if hasattr(v, '__iter__'):
print k
print_dictionary(v, ident + ' ')
else:
print '%s : %s' % (k, v)
elif type(obj) == list:
for v in obj:
sys.stdout.write(ident)
if hasattr(v, '__iter__'):
print_dictionary(v, ident + ' ')
else:
print v
else:
print obj
Instead of a button, put a link and navigate it to another page
<a href="logout.php">Logout</a>
Then in logout.php
page, use
session_start();
session_destroy();
header('Location: login.php');
exit;
It might be easiest to try the RCurl package. Install the package and try the following:
# install.packages("RCurl")
library(RCurl)
URL <- "https://d396qusza40orc.cloudfront.net/getdata%2Fdata%2Fss06hid.csv"
x <- getURL(URL)
## Or
## x <- getURL(URL, ssl.verifypeer = FALSE)
out <- read.csv(textConnection(x))
head(out[1:6])
# RT SERIALNO DIVISION PUMA REGION ST
# 1 H 186 8 700 4 16
# 2 H 306 8 700 4 16
# 3 H 395 8 100 4 16
# 4 H 506 8 700 4 16
# 5 H 835 8 800 4 16
# 6 H 989 8 700 4 16
dim(out)
# [1] 6496 188
download.file("https://d396qusza40orc.cloudfront.net/getdata%2Fdata%2Fss06hid.csv",destfile="reviews.csv",method="libcurl")
As usual nobody cares about UTF-16 surrogate pairs. See about them: What are the most common non-BMP Unicode characters in actual use? Even authors of org.apache.commons/commons-lang3
You can see difference between correct code and usual code in this sample:
public static void main(String[] args) {
//string with FACE WITH TEARS OF JOY symbol
String s = "abcdafghi\uD83D\uDE02cdefg";
int maxWidth = 10;
System.out.println(s);
//do not care about UTF-16 surrogate pairs
System.out.println(s.substring(0, Math.min(s.length(), maxWidth)));
//correctly process UTF-16 surrogate pairs
if(s.length()>maxWidth){
int correctedMaxWidth = (Character.isLowSurrogate(s.charAt(maxWidth)))&&maxWidth>0 ? maxWidth-1 : maxWidth;
System.out.println(s.substring(0, Math.min(s.length(), correctedMaxWidth)));
}
}
Inline styling does not support pseudos or at-rules (e.g., @media). Recommendations range from reimplement CSS features in JavaScript for CSS states like :hover
via onMouseEnter
and onMouseLeave
to using more elements to reproduce pseudo-elements like :after
and :before
to just use an external stylesheet.
Personally dislike all of those solutions. Reimplementing CSS features via JavaScript does not scale well -- neither does adding superfluous markup.
Imagine a large team wherein each developer is recreating CSS features like :hover
. Each developer will do it differently, as teams grow in size, if it can be done, it will be done. Fact is with JavaScript there are about n ways to reimplement CSS features, and over time you can bet on every one of those ways being implemented with the end result being spaghetti code.
So what to do? Use CSS. Granted you asked about inline styling going to assume you're likely in the CSS-in-JS camp (me too!). Have found colocating HTML and CSS to be as valuable as colocating JS and HTML, lots of folks just don't realise it yet (JS-HTML colocation had lots of resistance too at first).
Made a solution in this space called Style It that simply lets your write plaintext CSS in your React components. No need to waste cycles reinventing CSS in JS. Right tool for the right job, here is an example using :after
:
npm install style-it --save
Functional Syntax (JSFIDDLE)
import React from 'react';
import Style from 'style-it';
class Intro extends React.Component {
render() {
return Style.it(`
#heart {
position: relative;
width: 100px;
height: 90px;
}
#heart:before,
#heart:after {
position: absolute;
content: "";
left: 50px;
top: 0;
width: 50px;
height: 80px;
background: red;
-moz-border-radius: 50px 50px 0 0;
border-radius: 50px 50px 0 0;
-webkit-transform: rotate(-45deg);
-moz-transform: rotate(-45deg);
-ms-transform: rotate(-45deg);
-o-transform: rotate(-45deg);
transform: rotate(-45deg);
-webkit-transform-origin: 0 100%;
-moz-transform-origin: 0 100%;
-ms-transform-origin: 0 100%;
-o-transform-origin: 0 100%;
transform-origin: 0 100%;
}
#heart:after {
left: 0;
-webkit-transform: rotate(45deg);
-moz-transform: rotate(45deg);
-ms-transform: rotate(45deg);
-o-transform: rotate(45deg);
transform: rotate(45deg);
-webkit-transform-origin: 100% 100%;
-moz-transform-origin: 100% 100%;
-ms-transform-origin: 100% 100%;
-o-transform-origin: 100% 100%;
transform-origin :100% 100%;
}
`,
<div id="heart" />
);
}
}
export default Intro;
JSX Syntax (JSFIDDLE)
import React from 'react';
import Style from 'style-it';
class Intro extends React.Component {
render() {
return (
<Style>
{`
#heart {
position: relative;
width: 100px;
height: 90px;
}
#heart:before,
#heart:after {
position: absolute;
content: "";
left: 50px;
top: 0;
width: 50px;
height: 80px;
background: red;
-moz-border-radius: 50px 50px 0 0;
border-radius: 50px 50px 0 0;
-webkit-transform: rotate(-45deg);
-moz-transform: rotate(-45deg);
-ms-transform: rotate(-45deg);
-o-transform: rotate(-45deg);
transform: rotate(-45deg);
-webkit-transform-origin: 0 100%;
-moz-transform-origin: 0 100%;
-ms-transform-origin: 0 100%;
-o-transform-origin: 0 100%;
transform-origin: 0 100%;
}
#heart:after {
left: 0;
-webkit-transform: rotate(45deg);
-moz-transform: rotate(45deg);
-ms-transform: rotate(45deg);
-o-transform: rotate(45deg);
transform: rotate(45deg);
-webkit-transform-origin: 100% 100%;
-moz-transform-origin: 100% 100%;
-ms-transform-origin: 100% 100%;
-o-transform-origin: 100% 100%;
transform-origin :100% 100%;
}
`}
<div id="heart" />
</Style>
}
}
export default Intro;
Heart example pulled from CSS-Tricks
Of course! jQuery is just a library that utilizes javascript after all.
You can use document.getElementById to get the element in question, then change its height accordingly, through element.style.height.
elementToChange = document.getElementById('collapseableEl');
elementToChange.style.height = '100%';
Wrap that up in a neat little function that caters for toggling back and forth and you have yourself a solution.
If you can't use the plus operator (+
), you can use the operator
import:
import operator
listone = [1,2,3]
listtwo = [4,5,6]
result = operator.add(listone, listtwo)
print(result)
>>> [1, 2, 3, 4, 5, 6]
Alternatively, you could also use the __add__
dunder function:
listone = [1,2,3]
listtwo = [4,5,6]
result = list.__add__(listone, listtwo)
print(result)
>>> [1, 2, 3, 4, 5, 6]
No Gemfile.lock means:
-> Always check in Gemfile.lock, make travis delete it if you want to be extra thorough https://grosser.it/2015/08/14/check-in-your-gemfile-lock/
You cannot calculate the differences separately ... what difference would that yield for 7:59 and 8:00 o'clock? Try
import time
time.time()
which gives you the seconds since the start of the epoch.
You can then get the intermediate time with something like
timestamp1 = time.time()
# Your code here
timestamp2 = time.time()
print "This took %.2f seconds" % (timestamp2 - timestamp1)
An object file is just what you get when you compile one (or several) source file(s).
It can be either a fully completed executable or library, or intermediate files.
The object files typically contain native code, linker information, debugging symbols and so forth.
In this case you might want to use the functions np.hstack and np.vstack
arr = np.array([])
arr = np.hstack((arr, np.array([1,2,3])))
# arr is now [1,2,3]
arr = np.vstack((arr, np.array([4,5,6])))
# arr is now [[1,2,3],[4,5,6]]
You also can use the np.concatenate function.
Cheers
Another optimized code
import java.io.File;
import java.util.ArrayList;
import java.util.List;
public class GetFilesRecursive {
public static List <String> getFilesRecursively(File dir){
List <String> ls = new ArrayList<String>();
if (dir.isDirectory())
for (File fObj : dir.listFiles()) {
if(fObj.isDirectory()) {
ls.add(String.valueOf(fObj));
ls.addAll(getFilesRecursively(fObj));
} else {
ls.add(String.valueOf(fObj));
}
}
else
ls.add(String.valueOf(dir));
return ls;
}
public static void main(String[] args) {
List <String> ls = getFilesRecursively(new File("/Users/srinivasab/Documents"));
for (String file:ls) {
System.out.println(file);
}
System.out.println(ls.size());
}
}
To all those who still have this issue. I believe Pycharm gets confused with imports. For me, when i write 'from namespace import something', the previous line gets underlined in red, signaling that there is an error, but works. However ''from .namespace import something' doesn't get underlined, but also doesn't work.
Try
try:
from namespace import something
except NameError:
from .namespace import something
You can use other characters besides "/" in substitution:
sed "s#$1#$2#g" -i FILE
Here's a beautiful dynamic function I wrote to remove last part of url or path.
/**
* remove the last directories
*
* @param $path the path
* @param $level number of directories to remove
*
* @return string
*/
private function removeLastDir($path, $level)
{
if(is_int($level) && $level > 0){
$path = preg_replace('#\/[^/]*$#', '', $path);
return $this->removeLastDir($path, (int) $level - 1);
}
return $path;
}
$('#list option').each(function(intIndex){
//do stuff
});
0 * * * * cd folder_containing_exe && ./exe_name
should work unless there is something else that needs to be setup for the program to run.
In Visual Studio Code, the default shortcut for this is Ctrl + P.
I believe telnet 74.255.12.25 8089
. Why don't u try both
<html>
<body onload = "load()">
<script>
function load(){
try {
var ax = new ActiveXObject("WScript.Network");
alert('User: ' + ax.UserName );
alert('Computer: ' + ax.ComputerName);
}
catch (e) {
document.write('Permission to access computer name is denied' + '<br />');
}
}
</script>
</body>
</html>
Using a decorator for measuring execution time for functions can be handy. There is an example at http://www.zopyx.com/blog/a-python-decorator-for-measuring-the-execution-time-of-methods.
Below I've shamelessly pasted the code from the site mentioned above so that the example exists at SO in case the site is wiped off the net.
import time
def timeit(method):
def timed(*args, **kw):
ts = time.time()
result = method(*args, **kw)
te = time.time()
print '%r (%r, %r) %2.2f sec' % \
(method.__name__, args, kw, te-ts)
return result
return timed
class Foo(object):
@timeit
def foo(self, a=2, b=3):
time.sleep(0.2)
@timeit
def f1():
time.sleep(1)
print 'f1'
@timeit
def f2(a):
time.sleep(2)
print 'f2',a
@timeit
def f3(a, *args, **kw):
time.sleep(0.3)
print 'f3', args, kw
f1()
f2(42)
f3(42, 43, foo=2)
Foo().foo()
// John
There is no need to do two checks, why not just check for count = 3:
GROUP BY meetingID
HAVING COUNT(caseID) = 3
If you want to use the multiple checks, then you can use:
GROUP BY meetingID
HAVING COUNT(caseID) > 2
AND COUNT(caseID) < 4
vector.clear() is effectively the same as vector.erase( vector.begin(), vector.end() ).
If your problem is about calling delete
for each pointer contained in your vector, try this:
#include <algorithm>
template< typename T >
struct delete_pointer_element
{
void operator()( T element ) const
{
delete element;
}
};
// ...
std::for_each( vector.begin(), vector.end(), delete_pointer_element<int*>() );
Edit: Code rendered obsolete by C++11 range-for.
You have two options:
Option 1: Command line. You can run the following command
node '/Users/complete-path-to-you-project/your-project/node_modules/.bin/jest' '/Users/complete-path-to-you-project/your-project/path-to-your-file-within-the-project/your-file.spec.ts'
This avoids you to install Jest globally. You use the jest used by your project.
Option 2: If you are using Visual Studio Code you have a great plugin to do this: Jest Runner. It allows you not only to run tests file by file, but even specific suites and specs just by a right click on the tests you want to run.
You can try using USING
:
The optional
USING
clause specifies how to compute the new column value from the old; if omitted, the default conversion is the same as an assignment cast from old data type to new. AUSING
clause must be provided if there is no implicit or assignment cast from old to new type.
So this might work (depending on your data):
alter table presales alter column code type numeric(10,0) using code::numeric;
-- Or if you prefer standard casting...
alter table presales alter column code type numeric(10,0) using cast(code as numeric);
This will fail if you have anything in code
that cannot be cast to numeric; if the USING fails, you'll have to clean up the non-numeric data by hand before changing the column type.
You need to use HAVING
, not WHERE
.
The difference is: the WHERE
clause filters which rows MySQL selects. Then MySQL groups the rows together and aggregates the numbers for your COUNT
function.
HAVING
is like WHERE
, only it happens after the COUNT
value has been computed, so it'll work as you expect. Rewrite your subquery as:
( -- where that pid is in the set:
SELECT c2.pid -- of pids
FROM Catalog AS c2 -- from catalog
WHERE c2.pid = c1.pid
HAVING COUNT(c2.sid) >= 2)
You can close a window by simply pasting the window closing code in the button's OnClientClick event in the markup
These settings have now moved to Preferences > Accounts
:
No. You can't. But it is very possible in Scala:
class Foo {val bar = "a"}
class Bar {val foo = "b"}
i will provide mine because @muni s solution was a bit overkill for me
note: if you want to add custom definitions for several resolutions together, say something like this:
//mobile generally
@media screen and (max-width: 1199) {
.irns-desktop{
display: none;
}
.irns-mobile{
display: initial;
}
}
Be sure to add those definitions on top of the accurate definitions, so it cascades correctly (e.g. 'smartphone portrait' must win versus 'mobile generally')
//here all definitions to apply globally
//desktop
@media only screen
and (min-width : 1200) {
}
//tablet landscape
@media screen and (min-width: 1024px) and (max-width: 1600px) {
} // end media query
//tablet portrait
@media screen and (min-width: 768px) and (max-width: 1023px) {
}//end media definition
//smartphone landscape
@media screen and (min-width: 480px) and (max-width: 767px) {
}//end media query
//smartphone portrait
@media screen /*and (min-width: 320px)*/
and (max-width: 479px) {
}
//end media query
Try writing all the errors to a file.
error_reporting(-1); // reports all errors
ini_set("display_errors", "1"); // shows all errors
ini_set("log_errors", 1);
ini_set("error_log", "/tmp/php-error.log");
Something like that.
If you really want to have named parameters plus have your objects be instances of your class, you can do the following:
class bar {
constructor (options?: {length: number; height: number;}) {
if (options) {
this.length = options.length;
this.height = options.height;
}
}
length: number;
height: number;
}
class foo {
bars: bar[] = new Array();
}
var ham = new foo();
ham.bars = [
new bar({length: 4, height: 2}),
new bar({length: 1, height: 3})
];
Also here's the related item on typescript issue tracker.
Python Unittest, Bat process Error Codes:
if __name__ == "__main__":
test_suite = unittest.TestSuite()
test_suite.addTest(RunTestCases("test_aggregationCount_001"))
runner = unittest.TextTestRunner()
result = runner.run(test_suite)
# result = unittest.TextTestRunner().run(test_suite)
if result.wasSuccessful():
print("############### Test Successful! ###############")
sys.exit(1)
else:
print("############### Test Failed! ###############")
sys.exit()
Bat codes:
@echo off
for /l %%a in (1,1,2) do (
testcase_test.py && (
echo Error found. Waiting here...
pause
) || (
echo This time of test is ok.
)
)
Listen for the ACTION_BOOT_COMPLETE and do what you need to from there. There is a code snippet here.
Update:
Original link on answer is down, so based on the comments, here it is linked code, because no one would ever miss the code when the links are down.
In AndroidManifest.xml (application-part):
<receiver android:enabled="true" android:name=".BootUpReceiver"
android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
...
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
...
public class BootUpReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
Intent i = new Intent(context, MyActivity.class); //MyActivity can be anything which you want to start on bootup...
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
}
IntelliJ just inserts them automagically; no shortcut required. If the class name is ambiguous, it'll show me the list of possibilities to choose from. It reads my mind....
This solution applies if:
RestController
but not Controller
.You are not using Spring Data Rest.
@Configuration
public class WebConfig extends WebMvcConfigurationSupport {
@Override
protected RequestMappingHandlerMapping createRequestMappingHandlerMapping() {
return new ApiAwareRequestMappingHandlerMapping();
}
private static class ApiAwareRequestMappingHandlerMapping extends RequestMappingHandlerMapping {
private static final String API_PATH_PREFIX = "api";
@Override
protected void registerHandlerMethod(Object handler, Method method, RequestMappingInfo mapping) {
Class<?> beanType = method.getDeclaringClass();
if (AnnotationUtils.findAnnotation(beanType, RestController.class) != null) {
PatternsRequestCondition apiPattern = new PatternsRequestCondition(API_PATH_PREFIX)
.combine(mapping.getPatternsCondition());
mapping = new RequestMappingInfo(mapping.getName(), apiPattern, mapping.getMethodsCondition(),
mapping.getParamsCondition(), mapping.getHeadersCondition(), mapping.getConsumesCondition(),
mapping.getProducesCondition(), mapping.getCustomCondition());
}
super.registerHandlerMethod(handler, method, mapping);
}
}
}
This is similar to the solution posted by mh-dev, but I think this is a little cleaner and this should be supported on any version of Spring Boot 1.4.0+, including 2.0.0+.
I noted that the accepted answer keeps adding int to the list and keeps checking them with if (!randomList.Contains(MyNumber))
and I think this doesn't scale well, especially if you keep asking for new numbers.
I would do the opposite.
This would require a slightly bit more time at startup, but will scale much much better.
public class RandomIntGenerator
{
public Random a = new Random();
private List<int> _validNumbers;
private RandomIntGenerator(int desiredAmount, int start = 0)
{
_validNumbers = new List<int>();
for (int i = 0; i < desiredAmount; i++)
_validNumbers.Add(i + start);
}
private int GetRandomInt()
{
if (_validNumbers.Count == 0)
{
//you could throw an exception here
return -1;
}
else
{
var nextIndex = a.Next(0, _validNumbers.Count - 1);
var number = _validNumbers[nextIndex];
_validNumbers.RemoveAt(nextIndex);
return number;
}
}
}
It means that the callback function you passed to this.dataStore.data.find
should return a boolean and have 3 parameters, two of which can be optional:
However, your callback function does not return anything (returns void). You should pass a callback function with the correct return value:
this.dataStore.data.find((element, index, obj) => {
// ...
return true; // or false
});
or:
this.dataStore.data.find(element => {
// ...
return true; // or false
});
Reason why it's this way: the function you pass to the find
method is called a predicate. The predicate here defines a boolean outcome based on conditions defined in the function itself, so that the find
method can determine which value to find.
In practice, this means that the predicate is called for each item in data
, and the first item in data
for which your predicate returns true
is the value returned by find
.
To the OP or anyone currently interested, here's the section of code that's worked for me with firefox currently:
opt = webdriver.FirefoxOptions()
opt.add_argument('-headless')
ffox_driver = webdriver.Firefox(executable_path='\path\to\geckodriver', options=opt)
For regular Windows users who are not skilled with computers, it is practically not possible to install and use extensions from outside the Chrome Web Store.
Users of other operating systems (Linux, Mac, Chrome OS) can easily install unpacked extensions (in developer mode).
Windows users can also load an unpacked extension, but they will always see an information bubble with "Disable developer mode extensions" when they start Chrome or open a new incognito window, which is really annoying. The only way for Windows users to use unpacked extensions without such dialogs is to switch to Chrome on the developer channel, by installing https://www.google.com/chrome/browser/index.html?extra=devchannel#eula.
Extensions can be loaded in unpacked mode by following the following steps:
chrome://extensions
(via omnibox or menu -> Tools -> Extensions).If you have a crx
file, then it needs to be extracted first. CRX files are zip files with a different header. Any capable zip program should be able to open it. If you don't have such a program, I recommend 7-zip.
These steps will work for almost every extension, except extensions that rely on their extension ID. If you use the previous method, you will get an extension with a random extension ID. If it is important to preserve the extension ID, then you need to know the public key of your CRX file and insert this in your manifest.json. I have previously given a detailed explanation on how to get and use this key at https://stackoverflow.com/a/21500707.
I stuck with the same issue. I have found easiest solution which I like to share.
1) Create new branch with your changes.
git checkout -b mybranch
2) (Optional) Push new branch code on remote server.
git push origin mybranch
3) Checkout back to master branch.
git checkout master
4) Reset master branch code with remote server and remove local commit.
git reset --hard origin/master
In client application (application is not web application, e.g may be swing app)
private static ApplicationContext context = new ClassPathXmlApplicationContext("test-client.xml");
context.getBean(name);
No need of web.xml. ApplicationContext as container for getting bean service. No need for web server container. In test-client.xml there can be Simple bean with no remoting, bean with remoting.
Conclusion: In Scenario 1 applicationContext and DispatcherServlet
are not related.
In a server application (application deployed in server e.g Tomcat). Accessed service via remoting from client program (e.g Swing app)
Define listener in web.xml
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
At server startup ContextLoaderListener
instantiates beans defined in applicationContext.xml.
Assuming you have defined the following in applicationContext.xml:
<import resource="test1.xml" />
<import resource="test2.xml" />
<import resource="test3.xml" />
<import resource="test4.xml" />
The beans are instantiated from all four configuration files test1.xml, test2.xml, test3.xml, test4.xml.
Conclusion: In Scenario 2 applicationContext and DispatcherServlet
are not related.
In a web application with spring MVC.
In web.xml define:
<servlet>
<servlet-name>springweb</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>springweb</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>
When Tomcat starts, beans defined in springweb-servlet.xml are instantiated.
DispatcherServlet
extends FrameworkServlet
. In FrameworkServlet
bean instantiation takes place for springweb . In our case springweb is FrameworkServlet.
Conclusion: In Scenario 3 applicationContext and DispatcherServlet
are not related.
In web application with spring MVC. springweb-servlet.xml for servlet and applicationContext.xml for accessing the business service within the server program or for accessing DB service in another server program.
In web.xml the following are defined:
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>springweb</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>springweb</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>
At server startup, ContextLoaderListener
instantiates beans defined in applicationContext.xml; assuming you have declared herein:
<import resource="test1.xml" />
<import resource="test2.xml" />
<import resource="test3.xml" />
<import resource="test4.xml" />
The beans are all instantiated from all four test1.xml, test2.xml, test3.xml, test4.xml. After the completion of bean instantiation defined in applicationContext.xml, beans defined in springweb-servlet.xml are instantiated.
So the instantiation order is: the root (application context), then FrameworkServlet.
Now it should be clear why they are important in which scenario.
I got around this by upgrading both the version of Angular that I was using (from v8 -> v9) and the version of TypeScript (from 3.5.3 -> latest).
Maybe this is a bit redundant, but no one appeared to have mentioned this as a solution.
As a beginner in SQL I find that when using a BEGIN
and END
SSMS usually adds a squiggly line with incorrect syntax near 'END'
to END, simply because there's no content in between yet. If you're just setting up BEGIN
and END
to get started and add the actual query later, then simply add a bogus PRINT
statement so SSMS stops bothering you.
For example:
IF (1=1)
BEGIN
PRINT 'BOGUS'
END
The following will indeed set you on the wrong track, thinking you made a syntax error which in this case just means you still need to add content in between BEGIN and END:
IF (1=1)
BEGIN
END
Try making your constructor private like this:
private Foo newClass = new Foo();
<Button Background="#FF4148" BorderThickness="0" BorderBrush="Transparent">
<Border HorizontalAlignment="Right" BorderBrush="#FF6A6A" BorderThickness="0>
<Border.Style>
<Style TargetType="Border">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="#FF6A6A" />
</Trigger>
</Style.Triggers>
</Style>
</Border.Style>
<StackPanel Orientation="Horizontal">
<Image RenderOptions.BitmapScalingMode="HighQuality" Source="//ImageName.png" />
</StackPanel>
</Border>
</Button>
Here's one way to do it:
if not any(d['main_color'] == 'red' for d in a):
# does not exist
The part in parentheses is a generator expression that returns True
for each dictionary that has the key-value pair you are looking for, otherwise False
.
If the key could also be missing the above code can give you a KeyError
. You can fix this by using get
and providing a default value. If you don't provide a default value, None
is returned.
if not any(d.get('main_color', default_value) == 'red' for d in a):
# does not exist
I would do it like this:
SELECT top(100)* into #tmpFerdeen
FROM Customers
Insert into #tmpFerdeen
SELECT top(100)*
FROM CustomerEurope
Insert into #tmpFerdeen
SELECT top(100)*
FROM CustomerAsia
Insert into #tmpFerdeen
SELECT top(100)*
FROM CustomerAmericas
I had the same symptoms but my problem was way simpler and really my mistake. I had the wrong filter set.
The solution was just to verify that I had the correct filter set.
You can do it directly with the HTTPS URL like this:
pip install git+https://github.com/username/repo.git
This also works just appending that line in the requirements.txt in a Django project, for instance.
When using pattern= it will display whatever you put in the title attrib, so no JS required just do:
<input type="text" required="" pattern="[0-9]{10}" value="" title="This is an error message" />
check /Library/PostgreSQL/9.3/bin and you should find pg_config
I.E. /Library/PostgreSQL/<version_num>/
ps: you can do the following if you deem it necessary for your pg needs -
create a .profile in your ~ directory
export PG_HOME=/Library/PostgreSQL/9.3
export PATH=$PATH:$PG_HOME/bin
You can now use psql
or postgres
commands from the terminal, and install psycopg2 or any other dependency without issues, plus you can always just ls $PG_HOME/bin
when you feel like peeking at your pg_dir.
Deis automates scaling of Docker containers (among other things).
Deis (pronounced DAY-iss) is an open source PaaS that makes it easy to deploy and manage applications on your own servers. Deis builds upon Docker and CoreOS to provide a lightweight PaaS with a Heroku-inspired workflow.
Here is the developer workflow:
deis create myapp # create a new deis app called "myapp"
git push deis master # built with a buildpack or dockerfile
deis scale web=16 worker=4 # scale up docker containers
Deis automatically deploys your Docker containers across a CoreOS cluster and configures the Nginx routers to route requests to healthy Docker containers. If a host dies, containers are automatically restarted on another host in seconds. Just browse to the proxy URL or use deis open
to hit your app.
Some other useful commands:
deis config:set DATABASE_URL= # attach to a database w/ an envvar
deis run make test # run ephemeral containers for one-off tasks
deis logs # get aggregated logs for troubleshooting
deis rollback v23 # rollback to a prior release
To see this in action, check out the terminal video at http://deis.io/overview/. You can also learn about Deis concepts or jump right into deploying your own private PaaS.
Looks like you are missing the printer name, driver, and port - in that order. Your final command should resemble:
AcroRd32.exe /t <file.pdf> <printer_name> <printer_driver> <printer_port>
For example:
"C:\Program Files (x86)\Adobe\Reader 11.0\Reader\AcroRd32.exe" /t "C:\Folder\File.pdf" "Brother MFC-7820N USB Printer" "Brother MFC-7820N USB Printer" "IP_192.168.10.110"
Note: To find the printer information, right click your printer and choose properties. In my case shown above, the printer name and driver name matched - but your information may differ.
w+
#include <stdio.h>
int main()
{
FILE *fp;
fp = fopen("test.txt", "w+"); //write and read mode
fprintf(fp, "This is testing for fprintf...\n");
rewind(fp); //rewind () function moves file pointer position to the beginning of the file.
char ch;
while((ch=getc(fp))!=EOF)
putchar(ch);
fclose(fp);
}
output
This is testing for fprintf...
test.txt
This is testing for fprintf...
w and r to form w+
#include <stdio.h>
int main()
{
FILE *fp;
fp = fopen("test.txt", "w"); //only write mode
fprintf(fp, "This is testing for fprintf...\n");
fclose(fp);
fp = fopen("test.txt", "r");
char ch;
while((ch=getc(fp))!=EOF)
putchar(ch);
fclose(fp);
}
output
This is testing for fprintf...
test.txt
This is testing for fprintf...
r+
test.txt
This is testing for fprintf...
#include<stdio.h>
int main()
{
FILE *fp;
fp = fopen("test.txt", "r+"); //read and write mode
char ch;
while((ch=getc(fp))!=EOF)
putchar(ch);
rewind(fp); //rewind () function moves file pointer position to the beginning of the file.
fprintf(fp, "This is testing for fprintf again...\n");
fclose(fp);
return 0;
}
output
This is testing for fprintf...
test.txt
This is testing for fprintf again...
r and w to form r+
test.txt
This is testing for fprintf...
#include<stdio.h>
int main()
{
FILE *fp;
fp = fopen("test.txt", "r");
char ch;
while((ch=getc(fp))!=EOF)
putchar(ch);
fclose(fp);
fp=fopen("test.txt","w");
fprintf(fp, "This is testing for fprintf again...\n");
fclose(fp);
return 0;
}
output
This is testing for fprintf...
test.txt
This is testing for fprintf again...
a+
test.txt
This is testing for fprintf...
#include<stdio.h>
int main()
{
FILE *fp;
fp = fopen("test.txt", "a+"); //append and read mode
char ch;
while((ch=getc(fp))!=EOF)
putchar(ch);
rewind(fp); //rewind () function moves file pointer position to the beginning of the file.
fprintf(fp, "This is testing for fprintf again...\n");
fclose(fp);
return 0;
}
output
This is testing for fprintf...
test.txt
This is testing for fprintf...
This is testing for fprintf again...
a and r to form a+
test.txt
This is testing for fprintf...
#include<stdio.h>
int main()
{
FILE *fp;
fp = fopen("test.txt", "a"); //append and read mode
char ch;
while((ch=getc(fp))!=EOF)
putchar(ch);
fclose(fp);
fp=fopen("test.txt","r");
fprintf(fp, "This is testing for fprintf again...\n");
fclose(fp);
return 0;
}
output
This is testing for fprintf...
test.txt
This is testing for fprintf...
This is testing for fprintf again...
this works for me goto your model class and set error message above any prop
[Required(ErrorMessage ="This is Required Field")]
public string name { get; set; }
import namespace for Required by Ctrl+. and finally add this in view
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script src="~/Scripts/jquery.validate.min.js"></script>
<script src="~/Scripts/jquery.validate.unobtrusive.min.js"></script>
MySQL's maximum memory usage very much depends on hardware, your settings and the database itself.
The hardware is the obvious part. The more RAM the merrier, faster disks ftw. Don't believe those monthly or weekly news letters though. MySQL doesn't scale linear - not even on Oracle hardware. It's a little trickier than that.
The bottom line is: there is no general rule of thumb for what is recommend for your MySQL setup. It all depends on the current usage or the projections.
MySQL offers countless variables and switches to optimize its behavior. If you run into issues, you really need to sit down and read the (f'ing) manual.
As for the database -- a few important constraints:
InnoDB
, MyISAM
, ...)Most MySQL tips on stackoverflow will tell you about 5-8 so called important settings. First off, not all of them matter - e.g. allocating a lot of resources to InnoDB and not using InnoDB doesn't make a lot of sense because those resources are wasted.
Or - a lot of people suggest to up the max_connection
variable -- well, little do they know it also implies that MySQL will allocate more resources to cater those max_connections
-- if ever needed. The more obvious solution might be to close the database connection in your DBAL or to lower the wait_timeout
to free those threads.
If you catch my drift -- there's really a lot, lot to read up on and learn.
Table engines are a pretty important decision, many people forget about those early on and then suddenly find themselves fighting with a 30 GB sized MyISAM
table which locks up and blocks their entire application.
I don't mean to say MyISAM sucks, but InnoDB
can be tweaked to respond almost or nearly as fast as MyISAM
and offers such thing as row-locking on UPDATE
whereas MyISAM
locks the entire table when it is written to.
If you're at liberty to run MySQL on your own infrastructure, you might also want to check out the percona server because among including a lot of contributions from companies like Facebook and Google (they know fast), it also includes Percona's own drop-in replacement for InnoDB
, called XtraDB
.
See my gist for percona-server (and -client) setup (on Ubuntu): http://gist.github.com/637669
Database size is very, very important -- believe it or not, most people on the Intarwebs have never handled a large and write intense MySQL setup but those do really exist. Some people will troll and say something like, "Use PostgreSQL!!!111", but let's ignore them for now.
The bottom line is: judging from the size, decision about the hardware are to be made. You can't really make a 80 GB database run fast on 1 GB of RAM.
It's not: the more, the merrier. Only indices needed are to be set and usage has to be checked with EXPLAIN
. Add to that that MySQL's EXPLAIN
is really limited, but it's a start.
About these my-large.cnf
and my-medium.cnf
files -- I don't even know who those were written for. Roll your own.
A great start is the tuning primer. It's a bash script (hint: you'll need linux) which takes the output of SHOW VARIABLES
and SHOW STATUS
and wraps it into hopefully useful recommendation. If your server has ran some time, the recommendation will be better since there will be data to base them on.
The tuning primer is not a magic sauce though. You should still read up on all the variables it suggests to change.
I really like to recommend the mysqlperformanceblog. It's a great resource for all kinds of MySQL-related tips. And it's not just MySQL, they also know a lot about the right hardware or recommend setups for AWS, etc.. These guys have years and years of experience.
Another great resource is planet-mysql, of course.
/* Microsoft Edge Browser 12-18 (All versions before Chromium) */
This one should work:
@supports (-ms-ime-align:auto) {
.selector {
property: value;
}
}
For more see: Browser Strangeness
Another useful approach is Card Grids:
<div class="row row-cols-1 row-cols-md-2">_x000D_
<div class="col mb-4">_x000D_
<div class="card">_x000D_
<img src="..." class="card-img-top" alt="...">_x000D_
<div class="card-body">_x000D_
<h5 class="card-title">Card title</h5>_x000D_
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>_x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
<div class="col mb-4">_x000D_
<div class="card">_x000D_
<img src="..." class="card-img-top" alt="...">_x000D_
<div class="card-body">_x000D_
<h5 class="card-title">Card title</h5>_x000D_
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>_x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
<div class="col mb-4">_x000D_
<div class="card">_x000D_
<img src="..." class="card-img-top" alt="...">_x000D_
<div class="card-body">_x000D_
<h5 class="card-title">Card title</h5>_x000D_
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content.</p>_x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
<div class="col mb-4">_x000D_
<div class="card">_x000D_
<img src="..." class="card-img-top" alt="...">_x000D_
<div class="card-body">_x000D_
<h5 class="card-title">Card title</h5>_x000D_
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>_x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
function run() {
window.setTimeout(
"run()",
1000
);
}
This error was occuring in my program because the resultset was calling more columns to be displayed in the PDF Document than the database contained. For example, the table contains 30 fields but the program was calling 35 (resultset.getString(35))
C++ has NULL as well, often the same as 0 (pointer to address 0x00000000).
Do you use NULL or 0 (zero) for pointers in C++?
So in C++ that null check would be:
if (!foo)
cout << "not found";
This seems to work for me:
>>>a = ['x', 'y', 'z']
>>>type(a)
<class 'list'>
>>>isinstance(a, list)
True
This also can happen if the device you are trying to run on has some older version of the provisioning profile you are using that points to an old, expired or revoked certificate or a certificate without associated private key. Delete any invalid Provisioning Profiles under your device section in Xcode organizer.
On Angular to update a component including its template, there is a straight forward solution to this, having an @Input
property on your ChildComponent and add to your @Component
decorator changeDetection: ChangeDetectionStrategy.OnPush
as follows:
import { ChangeDetectionStrategy } from '@angular/core';
@Component({
selector: 'master',
templateUrl: templateUrl,
styleUrls:[styleUrl1],
changeDetection: ChangeDetectionStrategy.OnPush
})
export class ChildComponent{
@Input() data: MyData;
}
This will do all the work of check if Input data have changed and re-render the component
Use non-static position along with greater z-index in child element:
.parent {
position: absolute
z-index: 100;
}
.child {
position: relative;
z-index: 101;
}
The problem occurred on my machine due to Java version got updated(66 from 60). Pay special attention to it. As said above would like to add
In this file eclipse.ini, which is available where you have installed eclipse search for the line below -vm example C:\Program Files\Java\jre1.8.0_66\bin
now try to open this location, in case you are not able to open, that means there is some problem. In my case the version installed was jre1.8.0_60 . So there was a small difference which may not noticeable(66 instead of 60). Update it you will be able to open.
You've missed the time zone info (already answered, agreed)
arrow
package allows to avoid this torture with datetimes; It is already written, tested, pypi-published, cross-python (2.6 — 3.xx).
All you need: pip install arrow
(or add to dependencies)
dt = datetime(2013,9,1,11)
arrow.get(dt).timestamp
# >>> 1378033200
bc = arrow.get(1378033200).datetime
print(bc)
# >>> datetime.datetime(2013, 9, 1, 11, 0, tzinfo=tzutc())
print(bc.isoformat())
# >>> '2013-09-01T11:00:00+00:00'
As others have already pointed out, the reason you are not getting the results you expect is because your JSON does not match the class structure that you are trying to deserialize into. You either need to change your JSON or change your classes. Since others have already shown how to change the JSON, I will take the opposite approach here.
To match the JSON you posted in your question, your classes should be defined like those below. Notice I've made the following changes:
Wrapper
class corresponding to the outer object in your JSON.Values
property of the ValueSet
class from a List<Value>
to a Dictionary<string, Value>
since the values
property in your JSON contains an object, not an array.[JsonProperty]
attributes to match the property names in your JSON objects.Class definitions:
class Wrapper
{
[JsonProperty("JsonValues")]
public ValueSet ValueSet { get; set; }
}
class ValueSet
{
[JsonProperty("id")]
public string Id { get; set; }
[JsonProperty("values")]
public Dictionary<string, Value> Values { get; set; }
}
class Value
{
[JsonProperty("id")]
public string Id { get; set; }
[JsonProperty("diaplayName")]
public string DisplayName { get; set; }
}
You need to deserialize into the Wrapper
class, not the ValueSet
class. You can then get the ValueSet
from the Wrapper
.
var valueSet = JsonConvert.DeserializeObject<Wrapper>(jsonString).ValueSet;
Here is a working program to demonstrate:
class Program
{
static void Main(string[] args)
{
string jsonString = @"
{
""JsonValues"": {
""id"": ""MyID"",
""values"": {
""value1"": {
""id"": ""100"",
""diaplayName"": ""MyValue1""
},
""value2"": {
""id"": ""200"",
""diaplayName"": ""MyValue2""
}
}
}
}";
var valueSet = JsonConvert.DeserializeObject<Wrapper>(jsonString).ValueSet;
Console.WriteLine("id: " + valueSet.Id);
foreach (KeyValuePair<string, Value> kvp in valueSet.Values)
{
Console.WriteLine(kvp.Key + " id: " + kvp.Value.Id);
Console.WriteLine(kvp.Key + " name: " + kvp.Value.DisplayName);
}
}
}
And here is the output:
id: MyID
value1 id: 100
value1 name: MyValue1
value2 id: 200
value2 name: MyValue2
I also don't like using a function to handle a property which has been resolved again and again in every controller and service. Seem I'm not alone :D
Don't tried to get result with a promise as a variable, of course no way. But I found and use a solution below to access to the result as a property.
Firstly, write result to a property of your service:
app.factory('your_factory',function(){
var theParentIdResult = null;
var factoryReturn = {
theParentId: theParentIdResult,
addSiteParentId : addSiteParentId
};
return factoryReturn;
function addSiteParentId(nodeId) {
var theParentId = 'a';
var parentId = relationsManagerResource.GetParentId(nodeId)
.then(function(response){
factoryReturn.theParentIdResult = response.data;
console.log(theParentId); // #1
});
}
})
Now, we just need to ensure that method addSiteParentId
always be resolved before we accessed to property theParentId
. We can achieve this by using some ways.
Use resolve in router method:
resolve: {
parentId: function (your_factory) {
your_factory.addSiteParentId();
}
}
then in controller and other services used in your router, just call your_factory.theParentId to get your property. Referce here for more information: http://odetocode.com/blogs/scott/archive/2014/05/20/using-resolve-in-angularjs-routes.aspx
Use run
method of app to resolve your service.
app.run(function (your_factory) { your_factory.addSiteParentId(); })
Inject it in the first controller or services of the controller. In the controller we can call all required init services. Then all remain controllers as children of main controller can be accessed to this property normally as you want.
Chose your ways depend on your context depend on scope of your variable and reading frequency of your variable.
or
I think all you need to display the data on an HTML page is JSON.stringify
.
For example, if your JSON is stored like this:
var jsonVar = {
text: "example",
number: 1
};
Then you need only do this to convert it to a string:
var jsonStr = JSON.stringify(jsonVar);
And then you can insert into your HTML directly, for example:
document.body.innerHTML = jsonStr;
Of course you will probably want to replace body
with some other element via getElementById
.
As for the CSS part of your question, you could use RegExp to manipulate the stringified object before you put it into the DOM. For example, this code (also on JSFiddle for demonstration purposes) should take care of indenting of curly braces.
var jsonVar = {
text: "example",
number: 1,
obj: {
"more text": "another example"
},
obj2: {
"yet more text": "yet another example"
}
}, // THE RAW OBJECT
jsonStr = JSON.stringify(jsonVar), // THE OBJECT STRINGIFIED
regeStr = '', // A EMPTY STRING TO EVENTUALLY HOLD THE FORMATTED STRINGIFIED OBJECT
f = {
brace: 0
}; // AN OBJECT FOR TRACKING INCREMENTS/DECREMENTS,
// IN PARTICULAR CURLY BRACES (OTHER PROPERTIES COULD BE ADDED)
regeStr = jsonStr.replace(/({|}[,]*|[^{}:]+:[^{}:,]*[,{]*)/g, function (m, p1) {
var rtnFn = function() {
return '<div style="text-indent: ' + (f['brace'] * 20) + 'px;">' + p1 + '</div>';
},
rtnStr = 0;
if (p1.lastIndexOf('{') === (p1.length - 1)) {
rtnStr = rtnFn();
f['brace'] += 1;
} else if (p1.indexOf('}') === 0) {
f['brace'] -= 1;
rtnStr = rtnFn();
} else {
rtnStr = rtnFn();
}
return rtnStr;
});
document.body.innerHTML += regeStr; // appends the result to the body of the HTML document
This code simply looks for sections of the object within the string and separates them into divs (though you could change the HTML part of that). Every time it encounters a curly brace, however, it increments or decrements the indentation depending on whether it's an opening brace or a closing (behaviour similar to the space argument of 'JSON.stringify'). But you could this as a basis for different types of formatting.
$("meta")
Should give you back an array of elements whose tag name is META and then you can iterate over the collection to pick out whatever attributes of the elements you are interested in.
Within the class you can call function by using :
$this->filter();
Outside of the class
you have to create an object of a class
ex: $obj = new Functions();
$obj->filter($param);
for more about OOPs in php
this example:
class test {
public function newTest(){
$this->bigTest();// we don't need to create an object we can call simply using $this
$this->smallTest();
}
private function bigTest(){
//Big Test Here
}
private function smallTest(){
//Small Test Here
}
public function scoreTest(){
//Scoring code here;
}
}
$testObject = new test();
$testObject->newTest();
$testObject->scoreTest();
hope it will help!
Yes that is valid syntax but it may well not do what you want.
Execution will continue after your RAISERROR
except if you add a RETURN
. So you will need to add a block with BEGIN ... END
to hold the two statements.
Also I'm not sure why you plumped for severity 15. That usually indicates a syntax error.
Finally I'd simplify the conditions using IN
CREATE PROCEDURE [dbo].[AddApplicationUser] (@TenantId BIGINT,
@UserType TINYINT,
@UserName NVARCHAR(100),
@Password NVARCHAR(100))
AS
BEGIN
IF ( @TenantId IS NULL
AND @UserType IN ( 0, 1 ) )
BEGIN
RAISERROR('The value for @TenantID should not be null',15,1);
RETURN;
END
END
I have Windows 8.1 and my JDK under "Program Files" as well. What worked for me was replacing the name of the folder by the 8-digit internal MS-DOS name.
-vm
C:/PROGRA~1/Java/jdk1.8.0_40/bin/javaw.exe
I realized what was going on after running this in cmd.exe
CD \
DIR P* /X
It returned...
<DIR> PROGRA~1 Program Files
<DIR> PROGRA~2 Program Files (x86)
So we can find out how to use a path containing spaces
You must use the following:
NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponents = [gregorian components:(NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit) fromDate:yourDateHere];
NSInteger hour = [dateComponents hour];
NSInteger minute = [dateComponents minute];
NSInteger second = [dateComponents second];
[gregorian release];
There is no difference between NSDate* now and NSDate *now, it's just a matter of preference. From the compiler perspective, nothing changes.
Depending on which style you want to set, you have to use different methods. TextAppearance stuff has its own setter, TypeFace has its own setter, background has its own setter, etc.
I have a little addition to @Andreys answer to his own question.
It seems that you do not have to call the callback in the cors(req, res, cb)
function, so you can just call the cors module at the top of your function, without embedding all your code in the callback. This is much quicker if you want to implement cors afterwards.
exports.exampleFunction = functions.https.onRequest((request, response) => {
cors(request, response, () => {});
return response.send("Hello from Firebase!");
});
Do not forget to init cors as mentioned in the opening post:
const cors = require('cors')({origin: true});
Look at the following commands (especially the commented block).
DROP TABLE foo;
DROP TABLE bar;
CREATE TABLE foo (a int, b text);
CREATE TABLE bar (a serial, b text);
INSERT INTO foo (a, b) SELECT i, 'foo ' || i::text FROM generate_series(1, 5) i;
INSERT INTO bar (b) SELECT 'bar ' || i::text FROM generate_series(1, 5) i;
-- blocks of commands to turn foo into bar
CREATE SEQUENCE foo_a_seq;
ALTER TABLE foo ALTER COLUMN a SET DEFAULT nextval('foo_a_seq');
ALTER TABLE foo ALTER COLUMN a SET NOT NULL;
ALTER SEQUENCE foo_a_seq OWNED BY foo.a; -- 8.2 or later
SELECT MAX(a) FROM foo;
SELECT setval('foo_a_seq', 5); -- replace 5 by SELECT MAX result
INSERT INTO foo (b) VALUES('teste');
INSERT INTO bar (b) VALUES('teste');
SELECT * FROM foo;
SELECT * FROM bar;
Array.from(element.parentNode.children).indexOf(element)
element.parentNode.children
? Returns the brothers of element
, including that element.
Array.from
? Casts the constructor of children
to an Array
object
indexOf
? You can apply indexOf
because you now have an Array
object.
left = None
left is None #evaluates to True
These are typical npm paths if you install a package globally:
Windows XP - %USERPROFILE%\Application Data\npm\node_modules
Newer Windows Versions - %AppData%\npm\node_modules
or - %AppData%\roaming\npm\node_modules
javascript:void(0); --> this executes void function and returns undefined. This could have issues with IE. javascript:; --> this does nothing. safest to create dead links. '#' --> this means pointing to same DOM, it will reload the page on click.
On your development machine, you can execute the program and run Sysinternals Process Explorer. In the lower pane, it will show you the loaded DLLs and the current paths to them which is handy for a number of reasons. If you are executing off your deployment package, it would reveal which DLLs are referenced in the wrong path (i.e. weren't packaged correctly).
Currently, our company uses Visual Studio Installer projects to walk the dependency tree and output as loose files the program. In VS2013, this is now an extension: https://visualstudiogallery.msdn.microsoft.com/9abe329c-9bba-44a1-be59-0fbf6151054d. We then package these loose files in a more comprehensive installer but at least that setup project all the dot net dependencies and drops them into the one spot and warns you when things are missing.
As strings are immutable another way to do this would be to turn the string into a list, which can then be indexed and modified without any slicing trickery. However, to get the list back to a string you'd have to use .join()
using an empty string.
>>> hash = '355879ACB6'
>>> hashlist = list(hash)
>>> hashlist.insert(4, '-')
>>> ''.join(hashlist)
'3558-79ACB6'
I am not sure how this compares as far as performance, but I do feel it's easier on the eyes than the other solutions. ;-)
You are echoing outside the body tag of your HTML. Put your echos there, and you should be fine.
Also, remove the onclick="alert()"
from your submit. This is the cause for your first undefined
message.
<?php
$posted = false;
if( $_POST ) {
$posted = true;
// Database stuff here...
// $result = mysql_query( ... )
$result = $_POST['name'] == "danny"; // Dummy result
}
?>
<html>
<head></head>
<body>
<?php
if( $posted ) {
if( $result )
echo "<script type='text/javascript'>alert('submitted successfully!')</script>";
else
echo "<script type='text/javascript'>alert('failed!')</script>";
}
?>
<form action="" method="post">
Name:<input type="text" id="name" name="name"/>
<input type="submit" value="submit" name="submit"/>
</form>
</body>
</html>
I'm very late to answer it. But, I would like to share one example, which I only thought of today. If I told you to cut a piece of paper with dimensions 5m by 5m, then surely you would do that. But suppose I ask you to cut 1000 pieces of paper of the same dimensions. In this case, you won't do the measuring 1000 times; obviously, you would make a frame of 5m by 5m, and then with the help of it you would be able to cut 1000 pieces of paper in less time. So, what you did was make a framework which would do a specific type of task. Instead of performing the same type of task again and again for the same type of applications, you create a framework having all those facilities together in one nice packet, hence providing the abstraction for your application and more importantly many applications.
You can convert the value user provides to a double and store it again as nvarchar, with the aid of FormatProviders. CultureInfo is a typical FormatProvider. Assuming you know the culture you are operating,
System.Globalization.CultureInfo EnglishCulture = new System.Globalization.CultureInfo("en-EN");
System.Globalization.CultureInfo GermanCulture = new System.Globalization.CultureInfo("de-de");
will suffice to do the neccesary transformation, like;
double val;
if(double.TryParse("65,89875", System.Globalization.NumberStyles.Float, GermanCulture, out val))
{
string valInGermanFormat = val.ToString(GermanCulture);
string valInEnglishFormat = val.ToString(EnglishCulture);
}
if(double.TryParse("65.89875", System.Globalization.NumberStyles.Float, EnglishCulture, out val))
{
string valInGermanFormat = val.ToString(GermanCulture);
string valInEnglishFormat = val.ToString(EnglishCulture);
}
MDN has really nice documentation for all the new ways to import and export modules is ES 6 Import-MDN . A brief description of it in regards to your question you could've either:
Declared the component you were exporting as the 'default' component that this module was exporting:
export default class MyNavbar extends React.Component {
, and so when Importing your 'MyNavbar' you DON'T have to put curly braces around it : import MyNavbar from './comp/my-navbar.jsx';
.
Not putting curly braces around an import though is telling the document that this component was declared as an 'export default'. If it wasn't you'll get an error (as you did).
If you didn't want to declare your 'MyNavbar' as a default export when exporting it : export class MyNavbar extends React.Component {
, then you would have to wrap your import of 'MyNavbar in curly braces:
import {MyNavbar} from './comp/my-navbar.jsx';
I think that since you only had one component in your './comp/my-navbar.jsx' file it's cool to make it the default export. If you'd had more components like MyNavbar1, MyNavbar2, MyNavbar3 then I wouldn't make either or them a default and to import selected components of a module when the module hasn't declared any one thing a default you can use: import {foo, bar} from "my-module";
where foo and bar are multiple members of your module.
Definitely read the MDN doc it has good examples for the syntax. Hopefully this helps with a little more of an explanation for anyone that's looking to toy with ES 6 and component import/exports in React.
I figured it out. I was using a bad example I found in the past of how to map query string to the method parameters.
In case anyone else needs it, in order to have optional parameters in a query string such as:
you would use:
[Route("products/filter/{apc?}/{xpc?}/{sku?}")]
public IHttpActionResult Get(string apc = null, string xpc = null, int? sku = null)
{ ... }
It seems odd to have to define default values for the method parameters when these types already have a default.
Definitely use a service to share data between controllers, here is a working example. $broadcast is not the way to go, you should avoid using the eventing system when there is a more appropriate way. Use a 'service', 'value' or 'constant' (for global constants).
http://plnkr.co/edit/ETWU7d0O8Kaz6qpFP5Hp
Here is an example with an input so you can see the data mirror on the page: http://plnkr.co/edit/DbBp60AgfbmGpgvwtnpU
var testModule = angular.module('testmodule', []);
testModule
.controller('QuestionsStatusController1',
['$rootScope', '$scope', 'myservice',
function ($rootScope, $scope, myservice) {
$scope.myservice = myservice;
}]);
testModule
.controller('QuestionsStatusController2',
['$rootScope', '$scope', 'myservice',
function ($rootScope, $scope, myservice) {
$scope.myservice = myservice;
}]);
testModule
.service('myservice', function() {
this.xxx = "yyy";
});
The name accepted into TR1 (and the draft for the next standard) is std::unordered_map
, so if you have that available, it's probably the one you want to use.
Other than that, using it is a lot like using std::map
, with the proviso that when/if you traverse the items in an std::map
, they come out in the order specified by operator<
, but for an unordered_map, the order is generally meaningless.
Using the :before
pseudo-element,
CSS3's border-radius
,
and some transparency is quite easy:
<div class="circle"></div>
CSS:
.circle, .circle:before{
position:absolute;
border-radius:150px;
}
.circle{
width:200px;
height:200px;
z-index:0;
margin:11%;
padding:40px;
background: hsla(0, 100%, 100%, 0.6);
}
.circle:before{
content:'';
display:block;
z-index:-1;
width:200px;
height:200px;
padding:44px;
border: 6px solid hsla(0, 100%, 100%, 0.6);
/* 4px more padding + 6px border = 10 so... */
top:-10px;
left:-10px;
}
The :before
attaches to our .circle
another element which you only need to make (ok, block, absolute, etc...) transparent and play with the border opacity.
My problem was that under Build Phases -> Compile Sources, I added a compiler flag for a file, but I had misspelled it. It was supposed to be:
-fno-obj-arc
to show that this file does not use ARC.
In JUnit 5
it is much simpler by using @RepeatedTest
@RepeatedTest is used to signal that the annotated method is a test template method that should be repeated a specified number of times.
@RepeatedTest(3) // Runs N Times
public void test_Prime() {
}
More info on www.baeldung.com
My previous version of this answer had links, that kept becoming dead.
So, I've pointed it to the internet archive to preserve the original answer.