Although this is a pretty old question I must say it is touching exactly the knowledge I was missing during my first steps in R - i.e. how to express data in my hand as an object in R or how to select from existing objects. It is not easy for an R novice to think "in an R box" from the very beginning.
So I myself started to use crutches below which helped me a lot to find out what object to use for what data, and basically to imagine real-world usage.
Though I not giving exact answers to the question the short text below might help the reader who just started with R and is asking similar questions.
[
subsets.[
subsets.[
subsets by rows and columns, or by sequence.list
where I can subset using [
by rows and columns, but even using [[
.tree structure
where [i]
selects and returns whole branches and [[i]]
returns item from the branch. And because it is tree like structure
, you can even use an index sequence
to address every single leaf on a very complex list
using its [[index_vector]]
. Lists can be simple or very complex and can mix together various types of objects into one.So for lists
you can end up with more ways how to select a leaf
depending on situation like in the following example.
l <- list("aaa",5,list(1:3),LETTERS[1:4],matrix(1:9,3,3))
l[[c(5,4)]] # selects 4 from matrix using [[index_vector]] in list
l[[5]][4] # selects 4 from matrix using sequential index in matrix
l[[5]][1,2] # selects 4 from matrix using row and column in matrix
This way of thinking helped me a lot.
For me, the DefaultAppPool was unable to start and the event log told me that C:\Windows\System32\inetsrv\redirect.dll
was unable to load.
The file was missing. The cause for this was that the Windows feature "HTTP Redirection" was not installed. Check if that feature is ticket under Internet Information Services\World Wide Web Services\Common HTTP Features\HTTP Redirection
. No reboot should be required if you just installed it now.
What I found works in the form is str_replace('<br>', PHP_EOL, $textarea);
HEAD
is (direct or indirect, i.e. symbolic) reference to the current commit. It is a commit that you have checked in the working directory (unless you made some changes, or equivalent), and it is a commit on top of which "git commit" would make a new one. Usually HEAD
is symbolic reference to some other named branch; this branch is currently checked out branch, or current branch. HEAD
can also point directly to a commit; this state is called "detached HEAD", and can be understood as being on unnamed, anonymous branch.
And @
alone is a shortcut for HEAD
, since Git 1.8.5
ORIG_HEAD
is previous state of HEAD
, set by commands that have possibly dangerous behavior, to be easy to revert them. It is less useful now that Git has reflog: HEAD@{1}
is roughly equivalent to ORIG_HEAD
(HEAD@{1}
is always last value of HEAD
, ORIG_HEAD
is last value of HEAD
before dangerous operation).
For more information read git(1) manpage / [gitrevisions(7) manpage][git-revisions], Git User's Manual, the Git Community Book and Git Glossary
You might want to modify your jQuery code a bit to '#demolist li a'
so it specifically selects the text that is in the link rather than the text that is in the li element. That would allow you to have a sub-menu without causing issues. Also since your are specifically selecting the a tag you can access it with $(this).text();
.
$('#datebox li a').on('click', function(){
//$('#datebox').val($(this).text());
alert($(this).text());
});
I solved this problem following vestigal's tips here:
Can I set an unlimited length for maxJsonLength in web.config?
When I needed to post a large json to an action in a controller, I would get the famous "Error during deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property.\r\nParameter name: input value provider".
What I did is create a new ValueProviderFactory, LargeJsonValueProviderFactory, and set the MaxJsonLength = Int32.MaxValue in the GetDeserializedObject method
public sealed class LargeJsonValueProviderFactory : ValueProviderFactory
{
private static void AddToBackingStore(LargeJsonValueProviderFactory.EntryLimitedDictionary backingStore, string prefix, object value)
{
IDictionary<string, object> dictionary = value as IDictionary<string, object>;
if (dictionary != null)
{
foreach (KeyValuePair<string, object> keyValuePair in (IEnumerable<KeyValuePair<string, object>>) dictionary)
LargeJsonValueProviderFactory.AddToBackingStore(backingStore, LargeJsonValueProviderFactory.MakePropertyKey(prefix, keyValuePair.Key), keyValuePair.Value);
}
else
{
IList list = value as IList;
if (list != null)
{
for (int index = 0; index < list.Count; ++index)
LargeJsonValueProviderFactory.AddToBackingStore(backingStore, LargeJsonValueProviderFactory.MakeArrayKey(prefix, index), list[index]);
}
else
backingStore.Add(prefix, value);
}
}
private static object GetDeserializedObject(ControllerContext controllerContext)
{
if (!controllerContext.HttpContext.Request.ContentType.StartsWith("application/json", StringComparison.OrdinalIgnoreCase))
return (object) null;
string end = new StreamReader(controllerContext.HttpContext.Request.InputStream).ReadToEnd();
if (string.IsNullOrEmpty(end))
return (object) null;
var serializer = new JavaScriptSerializer {MaxJsonLength = Int32.MaxValue};
return serializer.DeserializeObject(end);
}
/// <summary>Returns a JSON value-provider object for the specified controller context.</summary>
/// <returns>A JSON value-provider object for the specified controller context.</returns>
/// <param name="controllerContext">The controller context.</param>
public override IValueProvider GetValueProvider(ControllerContext controllerContext)
{
if (controllerContext == null)
throw new ArgumentNullException("controllerContext");
object deserializedObject = LargeJsonValueProviderFactory.GetDeserializedObject(controllerContext);
if (deserializedObject == null)
return (IValueProvider) null;
Dictionary<string, object> dictionary = new Dictionary<string, object>((IEqualityComparer<string>) StringComparer.OrdinalIgnoreCase);
LargeJsonValueProviderFactory.AddToBackingStore(new LargeJsonValueProviderFactory.EntryLimitedDictionary((IDictionary<string, object>) dictionary), string.Empty, deserializedObject);
return (IValueProvider) new DictionaryValueProvider<object>((IDictionary<string, object>) dictionary, CultureInfo.CurrentCulture);
}
private static string MakeArrayKey(string prefix, int index)
{
return prefix + "[" + index.ToString((IFormatProvider) CultureInfo.InvariantCulture) + "]";
}
private static string MakePropertyKey(string prefix, string propertyName)
{
if (!string.IsNullOrEmpty(prefix))
return prefix + "." + propertyName;
return propertyName;
}
private class EntryLimitedDictionary
{
private static int _maximumDepth = LargeJsonValueProviderFactory.EntryLimitedDictionary.GetMaximumDepth();
private readonly IDictionary<string, object> _innerDictionary;
private int _itemCount;
public EntryLimitedDictionary(IDictionary<string, object> innerDictionary)
{
this._innerDictionary = innerDictionary;
}
public void Add(string key, object value)
{
if (++this._itemCount > LargeJsonValueProviderFactory.EntryLimitedDictionary._maximumDepth)
throw new InvalidOperationException("JsonValueProviderFactory_RequestTooLarge");
this._innerDictionary.Add(key, value);
}
private static int GetMaximumDepth()
{
NameValueCollection appSettings = ConfigurationManager.AppSettings;
if (appSettings != null)
{
string[] values = appSettings.GetValues("aspnet:MaxJsonDeserializerMembers");
int result;
if (values != null && values.Length > 0 && int.TryParse(values[0], out result))
return result;
}
return 1000;
}
}
}
Then, in the Application_Start method from Global.asax.cs, replace the ValueProviderFactory with the new one:
protected void Application_Start()
{
...
//Add LargeJsonValueProviderFactory
ValueProviderFactory jsonFactory = null;
foreach (var factory in ValueProviderFactories.Factories)
{
if (factory.GetType().FullName == "System.Web.Mvc.JsonValueProviderFactory")
{
jsonFactory = factory;
break;
}
}
if (jsonFactory != null)
{
ValueProviderFactories.Factories.Remove(jsonFactory);
}
var largeJsonValueProviderFactory = new LargeJsonValueProviderFactory();
ValueProviderFactories.Factories.Add(largeJsonValueProviderFactory);
}
If you want to use a NSArray, you need an Objective-C class to put in it - hence the NSNumber requirement.
That said, Obj-C is still C, so you can use regular C arrays and hold regular ints instead of NSNumbers if you need to.
Other people have asked this kind of question before (though I don't see any obvious dupes here right now).
I think the answer is that the keydown
event (and its twin keyup
) are all the info you get. Repeating is wired pretty firmly into the operating system, and an application program doesn't get much of an opportunity to query the BIOS for the actual state of the key.
What you can do, and perhaps have to if you need to get this working, is to programmatically de-bounce the key. Essentially, you can evaluate keydown
and keyup
yourself but ignore a keyup
event if it takes place too quickly after the last keydown
... or essentially, you should delay your response to keyup
long enough to be sure there's not another keydown
event following with something like 0.25 seconds of the keyup
.
This would involve using a timer activity, and recording the millisecond times for previous events. I can't say it's a very appealing solution, but...
Character.isDigit(string.charAt(0))
Note that this will allow any Unicode digit, not just 0-9. You might prefer:
char c = string.charAt(0);
isDigit = (c >= '0' && c <= '9');
Or the slower regex solutions:
s.substring(0, 1).matches("\\d")
// or the equivalent
s.substring(0, 1).matches("[0-9]")
However, with any of these methods, you must first be sure that the string isn't empty. If it is, charAt(0)
and substring(0, 1)
will throw a StringIndexOutOfBoundsException
. startsWith
does not have this problem.
To make the entire condition one line and avoid length checks, you can alter the regexes to the following:
s.matches("\\d.*")
// or the equivalent
s.matches("[0-9].*")
If the condition does not appear in a tight loop in your program, the small performance hit for using regular expressions is not likely to be noticeable.
I know this is somewhat older, but since the keywords "border inside" landed me directly here, I would like to share some findings that may be worth mentioning here. When I was adding a border on the hover state, i got the effects that OP is talking about. The border ads pixels to the dimension of the box which made it jumpy. There is two more ways one can deal with this that also work for IE7.
1) Have a border already attached to the element and simply change the color. This way the mathematics are already included.
div {
width:100px;
height:100px;
background-color: #aaa;
border: 2px solid #aaa; /* notice the solid */
}
div:hover {
border: 2px dashed #666;
}
2 ) Compensate your border with a negative margin. This will still add the extra pixels, but the positioning of the element will not be jumpy on
div {
width:100px;
height:100px;
background-color: #aaa;
}
div:hover {
margin: -2px;
border: 2px dashed #333;
}
Google recommends the usage of Android Volley for HTTP/HTTPS connections, since that HttpClient
is deprecated. So, you know the right choice :).
And also, NEVER NUKE SSL Certificates (NEVER!!!).
To nuke SSL Certificates, is totally against the purpose of SSL, which is promoting security. There's no sense of using SSL, if you're planning to bomb all SSL certificates that comes. A better solution would be creating a custom TrustManager
on your App + using Android Volley for HTTP/HTTPS connections.
Here's a Gist which I created, with a basic LoginApp, performing HTTPS connections, using a Self-Signed Certificate on the server-side, accepted on the App.
Here's also another Gist that may help, for creating Self-Signed SSL Certificates for setting up on your Server and also using the certificate on your App. Very important: you must copy the .crt file which was generated by the script above, to the "raw" directory from your Android project.
You can simply do tar -xvf <rpm file>
as well!
The Gantt charts given by Hifzan and Raja are for FCFS algorithms.
With an SJF algorithm, processes can be interrupted. That is, every process doesn't necessarily execute straight through their given burst time.
P3|P2|P4|P3|P5|P1|P5
1|2|3|5|7|8|11|14
P3 arrives at 1ms, then is interrupted by P2 and P4 since they both have smaller burst times, and then P3 resumes. P5 starts executing next, then is interrupted by P1 since P1's burst time is smaller than P5's. You must note the arrival times and be careful. These problems can be trickier than how they appear at-first-glance.
EDIT: This applies only to Preemptive SJF algorithms. A plain SJF algorithm is non-preemptive, meaning it does not interrupt a process.
Ensure that you always check for the file extension in server-side to ensure that no one can upload a malicious file such as .aspx, .asp etc.
You can build a wrapper function like this:
function get_something(name in varchar2,
ignore_notfound in varchar2) return varchar2
is
begin
return get_something (name, (upper(ignore_notfound) = 'TRUE') );
end;
then call:
select get_something('NAME', 'TRUE') from dual;
It's up to you what the valid values of ignore_notfound are in your version, I have assumed 'TRUE' means TRUE and anything else means FALSE.
In their book The Practice of Programming (which is well worth reading), Kernighan and Pike discuss this problem, and they solve it by using snprintf()
to create the string with the correct buffer size for passing to the scanf()
family of functions. In effect:
int scanner(const char *data, char *buffer, size_t buflen)
{
char format[32];
if (buflen == 0)
return 0;
snprintf(format, sizeof(format), "%%%ds", (int)(buflen-1));
return sscanf(data, format, buffer);
}
Note, this still limits the input to the size provided as 'buffer'. If you need more space, then you have to do memory allocation, or use a non-standard library function that does the memory allocation for you.
Note that the POSIX 2008 (2013) version of the scanf()
family of functions supports a format modifier m
(an assignment-allocation character) for string inputs (%s
, %c
, %[
). Instead of taking a char *
argument, it takes a char **
argument, and it allocates the necessary space for the value it reads:
char *buffer = 0;
if (sscanf(data, "%ms", &buffer) == 1)
{
printf("String is: <<%s>>\n", buffer);
free(buffer);
}
If the sscanf()
function fails to satisfy all the conversion specifications, then all the memory it allocated for %ms
-like conversions is freed before the function returns.
Using Node.js
sync mode:
var fs = require("fs");
var text = fs.readFileSync("./mytext.txt");
var textByLine = text.split("\n")
async mode:
var fs = require("fs");
fs.readFile("./mytext.txt", function(text){
var textByLine = text.split("\n")
});
UPDATE
As of at least Node 6, readFileSync
returns a Buffer
, so it must first be converted to a string in order for split
to work:
var text = fs.readFileSync("./mytext.txt").toString('utf-8');
Or
var text = fs.readFileSync("./mytext.txt", "utf-8");
To print a vector which possibly has complex numbers-
fprintf('Answer: %s\n', sprintf('%d ', num2str(x)));
You can do something like
var notSent = MsgSent.Except(MsgList, MsgIdEqualityComparer);
You will need to provide a custom equality comparer as outlined on MSDN
http://msdn.microsoft.com/en-us/library/bb336390.aspx
Simply have that equality comparer base equality only on MsgID property of each respective type. Since the equality comparer compares two instances of the same type, you would need to define an interface or common base type that both Sent and Messages implement that has a MsgID property.
If someone (like me) needs Tomalak's method with array support (ie. multiple select), here it is:
function getUrlParams(url) {
var re = /(?:\?|&(?:amp;)?)([^=&#]+)(?:=?([^&#]*))/g,
match, params = {},
decode = function (s) {return decodeURIComponent(s.replace(/\+/g, " "));};
if (typeof url == "undefined") url = document.location.href;
while (match = re.exec(url)) {
if( params[decode(match[1])] ) {
if( typeof params[decode(match[1])] != 'object' ) {
params[decode(match[1])] = new Array( params[decode(match[1])], decode(match[2]) );
} else {
params[decode(match[1])].push(decode(match[2]));
}
}
else
params[decode(match[1])] = decode(match[2]);
}
return params;
}
var urlParams = getUrlParams(location.search);
input ?my=1&my=2&my=things
result 1,2,things
(earlier returned only: things)
You need to create a model class that contains all stored procedure properties like below. Also because Entity Framework model class needs primary key, you can create a fake key by using Guid.
public class GetFunctionByID
{
[Key]
public Guid? GetFunctionByID { get; set; }
// All the other properties.
}
then register the GetFunctionByID
model class in your DbContext
.
public class FunctionsContext : BaseContext<FunctionsContext>
{
public DbSet<App_Functions> Functions { get; set; }
public DbSet<GetFunctionByID> GetFunctionByIds {get;set;}
}
When you call your stored procedure, just see below:
var functionId = yourIdParameter;
var result = db.Database.SqlQuery<GetFunctionByID>("GetFunctionByID @FunctionId", new SqlParameter("@FunctionId", functionId)).ToList());
String timestamp="";
Date temp=null;
try {
temp = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(getDateCurrentTimeZone(Long.parseLong(timestamp)));
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
int dayMonth=temp.getDate();
int dayWeek=temp.getDay();
int hour=temp.getHours();
int minute=temp.getMinutes();
int month=temp.getMonth()+1;
int year=temp.getYear()+1900;
If owner names differ, sort by them. Otherwise, use publication name for tiebreaker.
function mysortfunction(a, b) {
var o1 = a[3].toLowerCase();
var o2 = b[3].toLowerCase();
var p1 = a[1].toLowerCase();
var p2 = b[1].toLowerCase();
if (o1 < o2) return -1;
if (o1 > o2) return 1;
if (p1 < p2) return -1;
if (p1 > p2) return 1;
return 0;
}
In C, you don't really have strings, as a generic first-class object. You have to manage them as arrays of characters, which mean that you have to determine how you would like to manage your arrays. One way is to normal variables, e.g. placed on the stack. Another way is to allocate them dynamically using malloc
.
Once you have that sorted, you can copy the content of one array to another, to concatenate two strings using strcpy
or strcat
.
Having said that, C do have the concept of "string literals", which are strings known at compile time. When used, they will be a character array placed in read-only memory. It is, however, possible to concatenate two string literals by writing them next to each other, as in "foo" "bar"
, which will create the string literal "foobar".
Use the script below, and switch the DatabaseName
with then name of the database that you've backed up. On the column physical_device_name, you'll have the full path of your backed-up database:
select a.backup_set_id, a.server_name, a.database_name, a.name, a.user_name, a.position, a.software_major_version, a.backup_start_date, backup_finish_date, a.backup_size, a.recovery_model, b.physical_device_name
from msdb.dbo.backupset a join msdb.dbo.backupmediafamily b
on a.media_set_id = b.media_set_id
where a.database_name = 'DatabaseName'
order by a.backup_finish_date desc
You could do this simply by:
NOTE: you can find the right GApp version here:
Here is my solution using tr:
var1=match
var2=MATCH
var1=`echo $var1 | tr '[A-Z]' '[a-z]'`
var2=`echo $var2 | tr '[A-Z]' '[a-z]'`
if [ "$var1" = "$var2" ] ; then
echo "MATCH"
fi
I have two suggestions:
Do you have make in your %PATH% environment variable? On my system, I need to add %MINGW_DIR%\bin to %PATH%.
Do you have make installed? Depending on your mingw installation, it can be a separate package.
Last resort: Can you pass the full path to make on the commandline? cmake -D"CMAKE_MAKE_PROGRAM:PATH=C:/MinGW-32/bin/make.exe" ..\Source
If you want to load a cmsblock into your template/blockfile/model etc. You can do this as followed. This will render any variables places in the cmsblock
$block = Mage::getModel('cms/block')
->setStoreId(Mage::app()->getStore()->getId())
->load('identifier');
$var = array('variable' => 'value', 'other_variable' => 'other value');
/* This will be {{var variable}} and {{var other_variable}} in your CMS block */
$filterModel = Mage::getModel('cms/template_filter');
$filterModel->setVariables($var);
echo $filterModel->filter($block->getContent());
The best approach here is to remove @ActiveProfiles annotation and do the following:
@RunWith(SpringJUnit4ClassRunner.class)
@TestExecutionListeners({
TestPreperationExecutionListener.class
})
@Transactional
@ContextConfiguration(locations = {
"classpath:config/test-context.xml" })
public class TestContext {
@BeforeClass
public static void setSystemProperty() {
Properties properties = System.getProperties();
properties.setProperty("spring.profiles.active", "localtest");
}
@AfterClass
public static void unsetSystemProperty() {
System.clearProperty("spring.profiles.active");
}
@Test
public void testContext(){
}
}
And your test-context.xml should have the following:
<context:property-placeholder
location="classpath:META-INF/spring/config_${spring.profiles.active}.properties"/>
Example using List of int for simplicity.
List<int> list1 = new List<int>();
// fill data
List<int> list2 = new List<int>();
// fill data
var results = from i in list1
where !list2.Contains(i)
select i;
foreach (var result in results)
Console.WriteLine(result.ToString());
You have some syntax issues with your script. Here is a fixed version:
#!/bin/bash
if [ "$seconds" -eq 0 ]; then
timezone_string="Z"
elif [ "$seconds" -gt 0 ]; then
timezone_string=$(printf "%02d:%02d" $((seconds/3600)) $(((seconds / 60) % 60)))
else
echo "Unknown parameter"
fi
You need to import the map
operator:
import 'rxjs/add/operator/map'
Each method of mysqli can fail. You should test each return value. If one fails, think about whether it makes sense to continue with an object that is not in the state you expect it to be. (Potentially not in a "safe" state, but I think that's not an issue here.)
Since only the error message for the last operation is stored per connection/statement you might lose information about what caused the error if you continue after something went wrong. You might want to use that information to let the script decide whether to try again (only a temporary issue), change something or to bail out completely (and report a bug). And it makes debugging a lot easier.
$stmt = $mysqli->prepare("INSERT INTO testtable VALUES (?,?,?)");
// prepare() can fail because of syntax errors, missing privileges, ....
if ( false===$stmt ) {
// and since all the following operations need a valid/ready statement object
// it doesn't make sense to go on
// you might want to use a more sophisticated mechanism than die()
// but's it's only an example
die('prepare() failed: ' . htmlspecialchars($mysqli->error));
}
$rc = $stmt->bind_param('iii', $x, $y, $z);
// bind_param() can fail because the number of parameter doesn't match the placeholders in the statement
// or there's a type conflict(?), or ....
if ( false===$rc ) {
// again execute() is useless if you can't bind the parameters. Bail out somehow.
die('bind_param() failed: ' . htmlspecialchars($stmt->error));
}
$rc = $stmt->execute();
// execute() can fail for various reasons. And may it be as stupid as someone tripping over the network cable
// 2006 "server gone away" is always an option
if ( false===$rc ) {
die('execute() failed: ' . htmlspecialchars($stmt->error));
}
$stmt->close();
The mysqli extension is perfectly capable of reporting operations that result in an (mysqli) error code other than 0 via exceptions, see mysqli_driver::$report_mode.
die() is really, really crude and I wouldn't use it even for examples like this one anymore.
So please, only take away the fact that each and every (mysql) operation can fail for a number of reasons; even if the exact same thing went well a thousand times before....
One thing that was super easy and worked well for me was doing a TNSPing from a cmd prompt:
TNS Ping Utility for 32-bit Windows: Version 11.2.0.3.0 - Production on 13-MAR-2015 16:35:32
From the MySQL manual:
PERIOD_DIFF(P1,P2)
Returns the number of months between periods P1 and P2. P1 and P2 should be in the format YYMM or YYYYMM. Note that the period arguments P1 and P2 are not date values.
mysql> SELECT PERIOD_DIFF(200802,200703); -> 11
So it may be possible to do something like this:
Select period_diff(concat(year(d1),if(month(d1)<10,'0',''),month(d1)), concat(year(d2),if(month(d2)<10,'0',''),month(d2))) as months from your_table;
Where d1 and d2 are the date expressions.
I had to use the if() statements to make sure that the months was a two digit number like 02 rather than 2.
Just assign row to a particular index, using loc
:
df.loc[-1] = [2, 3, 4] # adding a row
df.index = df.index + 1 # shifting index
df = df.sort_index() # sorting by index
And you get, as desired:
A B C
0 2 3 4
1 5 6 7
2 7 8 9
See in Pandas documentation Indexing: Setting with enlargement.
HTML
<!DOCTYPE html>
<html>
<head>
<title>Center</title>
</head>
<body>
<div id="main_body">
some text
</div>
</body>
</html>
CSS
body
{
width: 100%;
Height: 100%;
}
#main_body
{
background: #ff3333;
width: 200px;
position: absolute;
}?
JS ( jQuery )
$(function(){
var windowHeight = $(window).height();
var windowWidth = $(window).width();
var main = $("#main_body");
$("#main_body").css({ top: ((windowHeight / 2) - (main.height() / 2)) + "px",
left:((windowWidth / 2) - (main.width() / 2)) + "px" });
});
See example here
Query Petition
Clause.Similar to the Group By
Clause
Syntax:
function (...) OVER (PARTITION BY col1 col3,...)
Functions
COUNT()
, SUM()
, MIN()
, MAX()
, etcROW_NUMBER()
, RATION_TO_REOIRT()
, etc.)
More info with example : http://msdn.microsoft.com/en-us/library/ms189461.aspx
If you want to extract structured data from Wikipedia, you may consider using DbPedia http://dbpedia.org/
It provides means to query data using given criteria using SPARQL and returns data from parsed Wikipedia infobox templates
Here is a quick example how it could be done in .NET http://www.kozlenko.info/blog/2010/07/20/executing-sparql-query-on-wikipedia-in-net/
There are some SPARQL libraries available for multiple platforms to make queries easier
I have solved this problem on my side by 2 ways:
Adding this configuration in pom.xml
<configuration><argLine>-Xmx1024m</argLine></configuration>
Switch to used JDK 1.7 instead of 1.6
Basically this happened with me, when i tried to change the package name of the app.
So, in emulator, same app was installed before. When i tried to install app after changing package name, it said, authority already used by older application in device.
Simply after uninstalling the application, it solved my problem.
Also, Authority name should always be : your.package.name.UNIQUENAME
;
example :
<provider
android:name="com.aviary.android.feather.cds.AviaryCdsProvider"
android:authorities="your.package.name.AviaryCdsProvider"
/>
You can catch it like any other exception:
try {
foo();
}
catch (const std::bad_alloc&) {
return -1;
}
Quite what you can usefully do from this point is up to you, but it's definitely feasible technically.
In general you cannot, and should not try, to respond to this error. bad_alloc
indicates that a resource cannot be allocated because not enough memory is available. In most scenarios your program cannot hope to cope with that, and terminating soon is the only meaningful behaviour.
Worse, modern operating systems often over-allocate: on such systems, malloc
and new
can return a valid pointer even if there is not enough free memory left – std::bad_alloc
will never be thrown, or is at least not a reliable sign of memory exhaustion. Instead, attempts to access the allocated memory will then result in a segmentation fault, which is not catchable (you can handle the segmentation fault signal, but you cannot resume the program afterwards).
The only thing you could do when catching std::bad_alloc
is to perhaps log the error, and try to ensure a safe program termination by freeing outstanding resources (but this is done automatically in the normal course of stack unwinding after the error gets thrown if the program uses RAII appropriately).
In certain cases, the program may attempt to free some memory and try again, or use secondary memory (= disk) instead of RAM but these opportunities only exist in very specific scenarios with strict conditions:
It’s exceedingly rare that applications have control over point 1 — userspace applications never do, it’s a system-wide setting that requires root permissions to change.1
OK, so let’s assume you’ve fixed point 1. What you can now do is for instance use a LRU cache for some of your data (probably some particularly large business objects that can be regenerated or reloaded on demand). Next, you need to put the actual logic that may fail into a function that supports retry — in other words, if it gets aborted, you can just relaunch it:
lru_cache<widget> widget_cache;
double perform_operation(int widget_id) {
std::optional<widget> maybe_widget = widget_cache.find_by_id(widget_id);
if (not maybe_widget) {
maybe_widget = widget_cache.store(widget_id, load_widget_from_disk(widget_id));
}
return maybe_widget->frobnicate();
}
…
for (int num_attempts = 0; num_attempts < MAX_NUM_ATTEMPTS; ++num_attempts) {
try {
return perform_operation(widget_id);
} catch (std::bad_alloc const&) {
if (widget_cache.empty()) throw; // memory error elsewhere.
widget_cache.remove_oldest();
}
}
// Handle too many failed attempts here.
But even here, using std::set_new_handler
instead of handling std::bad_alloc
provides the same benefit and would be much simpler.
1 If you’re creating an application that does control point 1, and you’re reading this answer, please shoot me an email, I’m genuinely curious about your circumstances.
new
in c++?The usual notion is that if new
operator cannot allocate dynamic memory of the requested size, then it should throw an exception of type std::bad_alloc
.
However, something more happens even before a bad_alloc
exception is thrown:
C++03 Section 3.7.4.1.3: says
An allocation function that fails to allocate storage can invoke the currently installed new_handler(18.4.2.2), if any. [Note: A program-supplied allocation function can obtain the address of the currently installed new_handler using the set_new_handler function (18.4.2.3).] If an allocation function declared with an empty exception-specification (15.4), throw(), fails to allocate storage, it shall return a null pointer. Any other allocation function that fails to allocate storage shall only indicate failure by throw-ing an exception of class std::bad_alloc (18.4.2.1) or a class derived from std::bad_alloc.
Consider the following code sample:
#include <iostream>
#include <cstdlib>
// function to call if operator new can't allocate enough memory or error arises
void outOfMemHandler()
{
std::cerr << "Unable to satisfy request for memory\n";
std::abort();
}
int main()
{
//set the new_handler
std::set_new_handler(outOfMemHandler);
//Request huge memory size, that will cause ::operator new to fail
int *pBigDataArray = new int[100000000L];
return 0;
}
In the above example, operator new
(most likely) will be unable to allocate space for 100,000,000 integers, and the function outOfMemHandler()
will be called, and the program will abort after issuing an error message.
As seen here the default behavior of new
operator when unable to fulfill a memory request, is to call the new-handler
function repeatedly until it can find enough memory or there is no more new handlers. In the above example, unless we call std::abort()
, outOfMemHandler()
would be called repeatedly. Therefore, the handler should either ensure that the next allocation succeeds, or register another handler, or register no handler, or not return (i.e. terminate the program). If there is no new handler and the allocation fails, the operator will throw an exception.
new_handler
and set_new_handler
?new_handler
is a typedef for a pointer to a function that takes and returns nothing, and set_new_handler
is a function that takes and returns a new_handler
.
Something like:
typedef void (*new_handler)();
new_handler set_new_handler(new_handler p) throw();
set_new_handler's parameter is a pointer to the function operator new
should call if it can't allocate the requested memory. Its return value is a pointer to the previously registered handler function, or null if there was no previous handler.
Given the behavior of new
a well designed user program should handle out of memory conditions by providing a proper new_handler
which does one of the following:
Make more memory available: This may allow the next memory allocation attempt inside operator new's loop to succeed. One way to implement this is to allocate a large block of memory at program start-up, then release it for use in the program the first time the new-handler is invoked.
Install a different new-handler: If the current new-handler can't make any more memory available, and of there is another new-handler that can, then the current new-handler can install the other new-handler in its place (by calling set_new_handler
). The next time operator new calls the new-handler function, it will get the one most recently installed.
(A variation on this theme is for a new-handler to modify its own behavior, so the next time it's invoked, it does something different. One way to achieve this is to have the new-handler modify static, namespace-specific, or global data that affects the new-handler's behavior.)
Uninstall the new-handler: This is done by passing a null pointer to set_new_handler
. With no new-handler installed, operator new
will throw an exception ((convertible to) std::bad_alloc
) when memory allocation is unsuccessful.
Throw an exception convertible to std::bad_alloc
. Such exceptions are not be caught by operator new
, but will propagate to the site originating the request for memory.
Not return: By calling abort
or exit
.
On a Mac-OS system
rm -rf /usr/local/go
rm -rf $(echo $GOPATH)
Then, remove all entries related to go i.e. GOROOT, GOPATH from ~/.bash_profile
and run
source ~/.bash_profile
On a Linux system
rm -rf /usr/local/go
rm -rf $(echo $GOPATH)
Then, remove all entries related to go i.e. GOROOT, GOPATH from ~/.bashrc
and run
source ~/.bashrc
Other answers posted here for this question did not work for me using the latest Visual Studio 2017 Enterprise edition (as of 2018-09-18).
Instead, I used this method:
Once installed, close and restart Visual Studio. Go to File->New Project and search for the word Installer. You'll know you have the correct templates installed if you see a list that looks something like this:
This is an old thread, but I have just encountered this situation and discovered a neat way around it. I was trying to run a setup.exe, but the focus was returning to the next line of the script without waiting for the setup.exe to finish. I tried the above solutions with no luck.
In the end, piping the command through more did the trick.
setup.exe {arguments} | more
You could also use React's useState
hook to declare local state for a function component. The initial state of the variable toggled
has been passed as an argument to the method .useState
.
import { render } from 'react-dom';
import React from "react";
type Props = {
text: string,
onClick(event: React.MouseEvent<HTMLButtonElement>): void,
};
export function HelloWorldButton(props: Props) {
const [toggled, setToggled] = React.useState(false); // returns a stateful value, and a function to update it
return <button
onClick={(event) => {
setToggled(!toggled);
props.onClick(event);
}}
>{props.text} (toggled: {toggled.toString()})</button>;
}
render(<HelloWorldButton text='Hello World' onClick={() => console.log('clicked!')} />, document.getElementById('root'));
If you have not yet commit you last changes before vacation.
- Command line to the project folder.
- Type 'svn diff
'
If you already commit you last changes before vacation.
s = re.sub(r"[-()\"#/@;:<>{}`+=~|.!?,]", "", s)
More precise explanation of the CSS in kendo451's answer.
There's another way to get a fancy-hacky inner shadow illusion,
which I'll explain in three simple steps. Say we have this HTML:
<h1>Get this</h1>
and this CSS:
h1 {
color: black;
background-color: #cc8100;
}
Let's start by making the text transparent:
h1 {
color: transparent;
background-color: #cc8100;
}
Now, we crop that background to the shape of the text:
h1 {
color: transparent;
background-color: #cc8100;
background-clip: text;
}
Now, the magic: we'll put a blurred text-shadow
, which will be in front
of the background, thus giving the impression of an inner shadow!
h1 {
color: transparent;
background-color: #cc8100;
background-clip: text;
text-shadow: 0px 2px 5px #f9c800;
}
See the final result.
background-clip
can't be text
).I managed to fix it finally. The problem is not related to HikariCP.
The problem persisted because of some complex methods in REST controllers executing multiple changes in DB through JPA repositories. For some reasons calls to these interfaces resulted in a growing number of "freezed" active connections, exhausting the pool. Either annotating these methods as @Transactional
or enveloping all the logic in a single call to transactional service method seem to solve the problem.
You can import .sql file using the standard input like this:
mysql -u <user> -p<password> <dbname> < file.sql
Note: There shouldn't space between <-p>
and <password>
Reference: http://dev.mysql.com/doc/refman/5.0/en/mysql-batch-commands.html
Note for suggested edits: This answer was slightly changed by suggested edits to use inline password parameter. I can recommend it for scripts but you should be aware that when you write password directly in the parameter (-p<password>
) it may be cached by a shell history revealing your password to anyone who can read the history file. Whereas -p
asks you to input password by standard input.
Simple and clean:
$('#select_all').click(function() {_x000D_
var c = this.checked;_x000D_
$(':checkbox').prop('checked', c);_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<form>_x000D_
<table>_x000D_
<tr>_x000D_
<td><input type="checkbox" id="select_all" /></td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td><input type="checkbox" name="select[]" /></td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td><input type="checkbox" name="select[]" /></td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td><input type="checkbox" name="select[]" /></td>_x000D_
</tr>_x000D_
</table>_x000D_
</form>
_x000D_
I found the same problem. I did the following:
docker run -ti devops -v /tmp:/tmp /bin/bash
When I change it to
docker run -ti -v /tmp:/tmp devops /bin/bash
it works fine.
Here is one that we have saved off to findcol.sql so we can run it easily from within SQLPlus
set verify off
clear break
accept colnam prompt 'Enter Column Name (or part of): '
set wrap off
select distinct table_name,
column_name,
data_type || ' (' ||
decode(data_type,'LONG',null,'LONG RAW',null,
'BLOB',null,'CLOB',null,'NUMBER',
decode(data_precision,null,to_char(data_length),
data_precision||','||data_scale
), data_length
) || ')' data_type
from all_tab_columns
where column_name like ('%' || upper('&colnam') || '%');
set verify on
Going with what you've started:
row = [[]]
crimefile = open(fileName, 'r')
for line in crimefile.readlines():
tmp = []
for element in line[0:-1].split(','):
tmp.append(element)
row.append(tmp)
Based on @Mad_Troll's answer, I developed this method.
I've run about 30 test cases against it, is the only method that handles sub day time fragments correctly.
Example: If you pass now & now + 1 millisecond that is still the same day.
Doing 1-1-13 23:59:59.098
to 1-1-13 23:59:59.099
returns 0 days, correctly; allot of the other methods posted here will not do this correctly.
Worth noting it does not care about which way you put them in, If your end date is before your start date it will count backwards.
/**
* This is not quick but if only doing a few days backwards/forwards then it is very accurate.
*
* @param startDate from
* @param endDate to
* @return day count between the two dates, this can be negative if startDate is after endDate
*/
public static long daysBetween(@NotNull final Calendar startDate, @NotNull final Calendar endDate) {
//Forwards or backwards?
final boolean forward = startDate.before(endDate);
// Which direction are we going
final int multiplier = forward ? 1 : -1;
// The date we are going to move.
final Calendar date = (Calendar) startDate.clone();
// Result
long daysBetween = 0;
// Start at millis (then bump up until we go back a day)
int fieldAccuracy = 4;
int field;
int dayBefore, dayAfter;
while (forward && date.before(endDate) || !forward && endDate.before(date)) {
// We start moving slowly if no change then we decrease accuracy.
switch (fieldAccuracy) {
case 4:
field = Calendar.MILLISECOND;
break;
case 3:
field = Calendar.SECOND;
break;
case 2:
field = Calendar.MINUTE;
break;
case 1:
field = Calendar.HOUR_OF_DAY;
break;
default:
case 0:
field = Calendar.DAY_OF_MONTH;
break;
}
// Get the day before we move the time, Change, then get the day after.
dayBefore = date.get(Calendar.DAY_OF_MONTH);
date.add(field, multiplier);
dayAfter = date.get(Calendar.DAY_OF_MONTH);
// This shifts lining up the dates, one field at a time.
if (dayBefore == dayAfter && date.get(field) == endDate.get(field))
fieldAccuracy--;
// If day has changed after moving at any accuracy level we bump the day counter.
if (dayBefore != dayAfter) {
daysBetween += multiplier;
}
}
return daysBetween;
}
You can remove the @NotNull
annotations, these are used by Intellij to do code analysis on the fly
You could use LINQBridge (MIT Licensed) to add support for lambda expressions to C# 2.0:
With Studio's multi-targeting and LINQBridge, you'll be able to write local (LINQ to Objects) queries using the full power of the C# 3.0 compiler—and yet your programs will require only Framework 2.0.
If by chance you have deleted JRE SYSTEM LIBRARY, then go to your JRE installation and add jars from there.
Eg:- C:\Program Files (x86)\Java\jre7\lib ---add jars from here
C:\Program Files (x86)\Java\jre7\lib\ext ---add jars from here
You need to remove "in" from "collapse in"
Now you can use just window.scrollTo({ top: 0, behavior: 'smooth' })
to get the page scrolled with a smooth effect.
const btn = document.getElementById('elem');_x000D_
_x000D_
btn.addEventListener('click', () => window.scrollTo({_x000D_
top: 400,_x000D_
behavior: 'smooth',_x000D_
}));
_x000D_
#x {_x000D_
height: 1000px;_x000D_
background: lightblue;_x000D_
}
_x000D_
<div id='x'>_x000D_
<button id='elem'>Click to scroll</button>_x000D_
</div>
_x000D_
You can do something like this:
var btn = document.getElementById('x');_x000D_
_x000D_
btn.addEventListener("click", function() {_x000D_
var i = 10;_x000D_
var int = setInterval(function() {_x000D_
window.scrollTo(0, i);_x000D_
i += 10;_x000D_
if (i >= 200) clearInterval(int);_x000D_
}, 20);_x000D_
})
_x000D_
body {_x000D_
background: #3a2613;_x000D_
height: 600px;_x000D_
}
_x000D_
<button id='x'>click</button>
_x000D_
ES6 recursive approach:
const btn = document.getElementById('elem');_x000D_
_x000D_
const smoothScroll = (h) => {_x000D_
let i = h || 0;_x000D_
if (i < 200) {_x000D_
setTimeout(() => {_x000D_
window.scrollTo(0, i);_x000D_
smoothScroll(i + 10);_x000D_
}, 10);_x000D_
}_x000D_
}_x000D_
_x000D_
btn.addEventListener('click', () => smoothScroll());
_x000D_
body {_x000D_
background: #9a6432;_x000D_
height: 600px;_x000D_
}
_x000D_
<button id='elem'>click</button>
_x000D_
Instead of taking the HttpServletRequest
object in every method, keep in controllers' context by auto-wiring via the constructor. Then you can access from all methods of the controller.
public class OAuth2ClientController {
@Autowired
private OAuth2ClientService oAuth2ClientService;
private HttpServletRequest request;
@Autowired
public OAuth2ClientController(HttpServletRequest request) {
this.request = request;
}
@RequestMapping(method = RequestMethod.POST)
public ResponseEntity<String> createClient(@RequestBody OAuth2Client client) {
System.out.println(request.getRequestURI());
System.out.println(request.getHeader("Content-Type"));
return ResponseEntity.ok();
}
}
this is an another way:
<html>
<head>
<title>Echo</title>
<style type="text/css">
#result{
border: 1px solid #000000;
min-height: 250px;
max-height: 100%;
padding: 5px;
font-family: sans-serif;
font-size: 12px;
}
</style>
<script type="text/javascript" lang="ja">
function start(){
function echo(text){
lastResultAreaText = document.getElementById('result').innerHTML;
resultArea = document.getElementById('result');
if(lastResultAreaText==""){
resultArea.innerHTML=text;
}
else{
resultArea.innerHTML=lastResultAreaText+"</br>"+text;
}
}
echo("Hello World!");
}
</script>
</head>
<body onload="start()">
<pre id="result"></pre>
</body>
You can also use pd.DataFrame.from_dict(d)
as :
In [8]: d = [{'points': 50, 'time': '5:00', 'year': 2010},
...: {'points': 25, 'time': '6:00', 'month': "february"},
...: {'points':90, 'time': '9:00', 'month': 'january'},
...: {'points_h1':20, 'month': 'june'}]
In [12]: pd.DataFrame.from_dict(d)
Out[12]:
month points points_h1 time year
0 NaN 50.0 NaN 5:00 2010.0
1 february 25.0 NaN 6:00 NaN
2 january 90.0 NaN 9:00 NaN
3 june NaN 20.0 NaN NaN
I used this configurations and still have the problem of pixelization :
Bitmap bmpOriginal = BitmapFactory.decodeResource(this.getResources(), R.drawable.map_pin);
Bitmap targetBitmap = Bitmap.createBitmap((bmpOriginal.getWidth()),
(bmpOriginal.getHeight()),
Bitmap.Config.ARGB_8888);
Paint p = new Paint();
p.setAntiAlias(true);
Matrix matrix = new Matrix();
matrix.setRotate((float) lock.getDirection(),(float) (bmpOriginal.getWidth()/2),
(float)(bmpOriginal.getHeight()/2));
RectF rectF = new RectF(0, 0, bmpOriginal.getWidth(), bmpOriginal.getHeight());
matrix.mapRect(rectF);
targetBitmap = Bitmap.createBitmap((int)rectF.width(), (int)rectF.height(), Bitmap.Config.ARGB_8888);
Canvas tempCanvas = new Canvas(targetBitmap);
tempCanvas.drawBitmap(bmpOriginal, matrix, p);
It's possible to inject instance of ApplicationContext
class by using SpringClassRule
and SpringMethodRule
rules. It might be very handy if you would like to use
another non-Spring runners. Here's an example:
@ContextConfiguration(classes = BeanConfiguration.class)
public static class SpringRuleUsage {
@ClassRule
public static final SpringClassRule springClassRule = new SpringClassRule();
@Rule
public final SpringMethodRule springMethodRule = new SpringMethodRule();
@Autowired
private ApplicationContext context;
@Test
public void shouldInjectContext() {
}
}
I had the same issue. Fixed by adding a pom.xml in parent folder with <modules>
listed.
Change the parameter type from primitive to Object and put a null check in the setter. See example below
public void setPhoneNumber(Long phoneNumber) {
if (phoneNumber != null)
this.phoneNumber = phoneNumber;
else
this.extension = 0l;
}
Simply: DO NOT DO IT. Http Content within a HTTPS page is inherently insecure. Point. This is why IE shows a warning. Getting rid of the warning is a stupid hogwash approach.
Instead, a HTTPS page should only have HTTPS content. Make sure the content can be loaded via HTTPS, too, and reference it via https if the page is loaded via https. For external content this will mean loading and caching the elements locally so that they are available via https - sure. No way around that, sadly.
The warning is there for a good reason. Seriously. Spend 5 minutes thinking how you could take over a https shown page with custom content - you will be surprised.
I find it surprising that, even in Swift 4, there's still no simple native way to express a String range using Int. The only String methods that let you supply an Int as a way of obtaining a substring by range are prefix
and suffix
.
It is useful to have on hand some conversion utilities, so that we can talk like NSRange when speaking to a String. Here's a utility that takes a location and length, just like NSRange, and returns a Range<String.Index>
:
func range(_ start:Int, _ length:Int) -> Range<String.Index> {
let i = self.index(start >= 0 ? self.startIndex : self.endIndex,
offsetBy: start)
let j = self.index(i, offsetBy: length)
return i..<j
}
For example, "hello".range(0,1)"
is the Range<String.Index>
embracing the first character of "hello"
. As a bonus, I've allowed negative locations: "hello".range(-1,1)"
is the Range<String.Index>
embracing the last character of "hello"
.
It is useful also to convert a Range<String.Index>
to an NSRange, for those moments when you have to talk to Cocoa (for example, in dealing with NSAttributedString attribute ranges). Swift 4 provides a native way to do that:
let nsrange = NSRange(range, in:s) // where s is the string
We can thus write another utility where we go directly from a String location and length to an NSRange:
extension String {
func nsRange(_ start:Int, _ length:Int) -> NSRange {
return NSRange(self.range(start,length), in:self)
}
}
you can use this function ; https://github.com/serhatozles/ArrayAdvancedSearch
<?php
include('ArraySearch.php');
$query = "a='Example World' and b>='2'";
$Array = array(
'a' => array('d' => '2'),
array('a' => 'Example World','b' => '2'),
array('c' => '3'), array('d' => '4'),
);
$Result = ArraySearch($Array,$query,1);
echo '<pre>';
print_r($Result);
echo '</pre>';
// Output:
// Array
// (
// [0] => Array
// (
// [a] => Example World
// [b] => 2
// )
//
// )
The method len() returns the number of elements in the list.
list1, list2 = [123, 'xyz', 'zara'], [456, 'abc']
print "First list length : ", len(list1)
print "Second list length : ", len(list2)
When we run above program, it produces the following result -
First list length : 3 Second list length : 2
Ólafur forgot the surrogate key:
A surrogate key in a database is a unique identifier for either an entity in the modeled world or an object in the database. The surrogate key is not derived from application data.
To remove title bar in AppCompat:
@Override
protected void onCreate(Bundle savedInstanceState) {
supportRequestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
}
You should use isinstance
isinstance(...)
isinstance(object, class-or-type-or-tuple) -> bool
Return whether an object is an instance of a class or of a subclass thereof.
With a type as second argument, return whether that is the object's type.
The form using a tuple, isinstance(x, (A, B, ...)), is a shortcut for
isinstance(x, A) or isinstance(x, B) or ... (etc.).
I had this issue while using Python installed with sudo make altinstall
on Opensuse linux. It seems that the compiled libraries are installed in /usr/local/lib64
but Python is looking for them in /usr/local/lib
.
I solved it by creating a dynamic link to the relevant directory in /usr/local/lib
sudo ln -s /usr/local/lib64/python3.8/lib-dynload/ /usr/local/lib/python3.8/lib-dynload
I suspect the better thing to do would be to specify libdir
as an argument to configure
(at the start of the build process) but I haven't tested it that way.
You can use equals()
.
enum.equals(String)
Instead of
this.$axios.get('items')
use
this.$axios({ url: 'items', baseURL: 'http://new-url.com' })
If you don't pass method: 'XXX'
then by default, it will send via get
method.
Request Config: https://github.com/axios/axios#request-config
With angular 6 and rxjs 6 Observable.throw()
, Observable.off()
has been deprecated instead you need to use throwError
ex :
return this.http.get('yoururl')
.pipe(
map(response => response.json()),
catchError((e: any) =>{
//do your processing here
return throwError(e);
}),
);
If you are using Google fonts I would suggest the following.
If you want the fonts to run from your localhost or server you need to download the files.
Instead of downloading the ttf packages in the download links, use the live link they provide, for example:
http://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,300italic,400italic,600italic
Paste the URL in your browser and you should get a font-face declaration similar to the first answer.
Open the URLs provided, download and rename the files.
Stick the updated font-face declarations with relative paths to the woff files in your CSS, and you are done.
You have two ways to do this:
In this type it automatically runs the reverse code of it, when rollback.
def change
rename_column :table_name, :old_column_name, :new_column_name
end
To this type, it runs the up method when rake db:migrate
and runs the down method when rake db:rollback
:
def self.up
rename_column :table_name, :old_column_name, :new_column_name
end
def self.down
rename_column :table_name,:new_column_name,:old_column_name
end
Typographically, the correct glyph to use in sentence punctuation is the quote mark, both single (including for apostrophes) and double quotes. The straight-looking mark that we often see on the web is called a prime, which also comes in single and double varieties and has limited uses, mostly for measurements.
This article explains how to use them correctly.
Similar to npocmaka's solution, if you are having more than one line of batch code in your batch file besides the python code, check this out: http://lallouslab.net/2017/06/12/batchography-embedding-python-scripts-in-your-batch-file-script/
@echo off
rem = """
echo some batch commands
echo another batch command
python -x "%~f0" %*
echo some more batch commands
goto :eof
"""
# Anything here is interpreted by Python
import platform
import sys
print("Hello world from Python %s!\n" % platform.python_version())
print("The passed arguments are: %s" % sys.argv[1:])
What this code does is it runs itself as a python file by putting all the batch code into a multiline string. The beginning of this string is in a variable called rem, to make the batch code read it as a comment. The first line containing @echo off
is ignored in the python code because of the -x
parameter.
it is important to mention that if you want to use \
in your batch code, for example in a file path, you'll have to use r"""..."""
to surround it to use it as a raw string without escape sequences.
@echo off
rem = r"""
...
"""
There is a file in your git root directory named .gitignore
. It's a file, not a command. You just need to insert the names of the files that you want to ignore, and they will automatically be ignored. For example, if you wanted to ignore all emacs autosave files, which end in ~
, then you could add this line:
*~
If you want to remove the unwanted files from your branch, you can use git add -A
, which "removes files that are no longer in the working tree".
Note: What I called the "git root directory" is simply the directory in which you used git init
for the first time. It is also where you can find the .git
directory.
The man pages is the best source of information you can find... and is at your fingertips: man mkdir
yields this about -p
switch:
-p, --parents
no error if existing, make parent directories as needed
Use case example: Assume I want to create directories hello/goodbye
but none exist:
$mkdir hello/goodbye
mkdir:cannot create directory 'hello/goodbye': No such file or directory
$mkdir -p hello/goodbye
$
-p
created both, hello
and goodbye
This means that the command will create all the directories necessaries to fulfill your request, not returning any error in case that directory exists.
About rlidwka
, Google has a very good memory for acronyms :). My search returned this for example: http://www.cs.cmu.edu/~help/afs/afs_acls.html
Directory permissions
l (lookup)
Allows one to list the contents of a directory. It does not allow the reading of files.
i (insert)
Allows one to create new files in a directory or copy new files to a directory.
d (delete)
Allows one to remove files and sub-directories from a directory.
a (administer)
Allows one to change a directory's ACL. The owner of a directory can always change the ACL of a directory that s/he owns, along with the ACLs of any subdirectories in that directory.
File permissions
r (read)
Allows one to read the contents of file in the directory.
w (write)
Allows one to modify the contents of files in a directory and use chmod on them.
k (lock)
Allows programs to lock files in a directory.
Hence rlidwka
means: All permissions on.
It's worth mentioning, as @KeithThompson pointed out in the comments, that not all Unix systems support ACL. So probably the rlidwka
concept doesn't apply here.
Separate with commas:
http://localhost:8080/MovieDB/GetJson?name=Actor1,Actor2,Actor3&startDate=20120101&endDate=20120505
or:
http://localhost:8080/MovieDB/GetJson?name=Actor1&name=Actor2&name=Actor3&startDate=20120101&endDate=20120505
or:
http://localhost:8080/MovieDB/GetJson?name[0]=Actor1&name[1]=Actor2&name[2]=Actor3&startDate=20120101&endDate=20120505
Either way, your method signature needs to be:
@RequestMapping(value = "/GetJson", method = RequestMethod.GET)
public void getJson(@RequestParam("name") String[] ticker, @RequestParam("startDate") String startDate, @RequestParam("endDate") String endDate) {
//code to get results from db for those params.
}
Working plunk here.
To add the new input just once, use the following code:
$(document).ready(function()
{
$("#insertAfterBtn").one("click", function(e)
{
var r = $('<input/>', { type: "button", id: "field", value: "I'm a button" });
$("body").append(r);
});
});
[... source stripped here ...]
<body>
<button id="insertAfterBtn">Insert after</button>
</body>
[... source stripped here ...]
To make it work in w3 editor, copy/paste the code below into 'source code' section inside w3 editor and then hit 'Submit Code':
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
</head>
<body>
<button id="insertAfterBtn">Insert only one button after</button>
<div class="myClass"></div>
<div id="myId"></div>
</body>
<script type="text/javascript">
$(document).ready(function()
{
// when dom is ready, call this method to add an input to 'body' tag.
addInputTo($("body"));
// when dom is ready, call this method to add an input to a div with class=myClass
addInputTo($(".myClass"));
// when dom is ready, call this method to add an input to a div with id=myId
addInputTo($("#myId"));
$("#insertAfterBtn").one("click", function(e)
{
var r = $('<input/>', { type: "button", id: "field", value: "I'm a button" });
$("body").append(r);
});
});
function addInputTo(container)
{
var inputToAdd = $("<input/>", { type: "button", id: "field", value: "I was added on page load" });
container.append(inputToAdd);
}
</script>
</html>
Here's code to get the full path to the executing app:
Windows:
char pBuf[256];
size_t len = sizeof(pBuf);
int bytes = GetModuleFileName(NULL, pBuf, len);
return bytes ? bytes : -1;
Linux:
int bytes = MIN(readlink("/proc/self/exe", pBuf, len), len - 1);
if(bytes >= 0)
pBuf[bytes] = '\0';
return bytes;
updated from Mojave to Big Sur and got the same error : the command
xcode-select --install
worked like a charm
Not using iframes puts you in a world of handling #document security issues with cross domain and links firing unexpected ways that was not intended for originally, do you really need bad Advertisements?
You can use jquery .load function to send the page to whatever html element you want to target, assuming your not getting this from another domain.
You can use javascript .innerHTML value to set and to rewrite the element with whatever you want, but if you add another file you might be writing against 2 documents in 1... like a in another
iframes are old, another way we can add "src" into the html alone without any use for javascript. But it's old, prehistoric, and just plain OLD! Frameset makes it worse because I can put #document in those to handle multiple html files. An Old way people created navigation menu's Long and before people had FLIP phones.
1.) Yes you will have to work in Javascript if you do NOT want to use an Iframe.
2.) There is a good hack in which you can set the domain to equal each other without having to set server stuff around. Means you will have to have edit capabilities of the documents.
3.) javascript window.document is limited to the iframe itself and can NOT go above the iframe if you want to grab something through the DOM itself. Because it treats it like a separate tab, it also defines it in another document object model.
You say that if int(splitLine[0]) > int(lastUnix):
is causing the trouble, but you don't actually show anything which suggests that.
I think this line is the problem instead:
print 'Pulled', + stock
Do you see why this line could cause that error message? You want either
>>> stock = "AAAA"
>>> print 'Pulled', stock
Pulled AAAA
or
>>> print 'Pulled ' + stock
Pulled AAAA
not
>>> print 'Pulled', + stock
PulledTraceback (most recent call last):
File "<ipython-input-5-7c26bb268609>", line 1, in <module>
print 'Pulled', + stock
TypeError: bad operand type for unary +: 'str'
You're asking Python to apply the +
symbol to a string like +23
makes a positive 23, and she's objecting.
Because you are assigning instance
to null
. The compiler infers that it can never be anything other than null
. So it assumes that the else block should never be executed so instance
is typed as never
in the else block.
Now if you don't declare it as the literal value null
, and get it by any other means (ex: let instance: Foo | null = getFoo();
), you will see that instance
will be null
inside the if block and Foo
inside the else block.
Never type documentation: https://www.typescriptlang.org/docs/handbook/basic-types.html#never
Edit:
The issue in the updated example is actually an open issue with the compiler. See:
https://github.com/Microsoft/TypeScript/issues/11498 https://github.com/Microsoft/TypeScript/issues/12176
Use a SharedViewModel
proposed at the official ViewModel documentation
It's very common that two or more fragments in an activity need to communicate with each other. Imagine a common case of master-detail fragments, where you have a fragment in which the user selects an item from a list and another fragment that displays the contents of the selected item. This case is never trivial as both fragments need to define some interface description, and the owner activity must bind the two together. In addition, both fragments must handle the scenario where the other fragment is not yet created or visible.
This common pain point can be addressed by using ViewModel objects. These fragments can share a ViewModel using their activity scope to handle this communication
First implement fragment-ktx to instantiate your viewmodel more easily
dependencies {
implementation "androidx.fragment:fragment-ktx:1.2.2"
}
Then, you just need to put inside the viewmodel the data you will be sharing with the other fragment
class SharedViewModel : ViewModel() {
val selected = MutableLiveData<Item>()
fun select(item: Item) {
selected.value = item
}
}
Then, to finish up, just instantiate your viewModel in each fragment, and set the value of selected
from the fragment you want to set the data
class MasterFragment : Fragment() {
private val model: SharedViewModel by activityViewModels()
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
itemSelector.setOnClickListener { item ->
model.select(item)
}
}
}
And then, just listen for this value at your Fragment destination
class DetailFragment : Fragment() {
private val model: SharedViewModel by activityViewModels()
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
model.selected.observe(viewLifecycleOwner, Observer<Item> { item ->
// Update the UI
})
}
}
You can also do it in the opposite way
Add an attribute colspan
(abbriviation for 'column span') in your top cell (<td>
) and set its value to 2.
Your table should resembles the following;
<table>
<tr>
<td colspan = "2">
<!-- Merged Columns -->
</td>
</tr>
<tr>
<td>
<!-- Column 1 -->
</td>
<td>
<!-- Column 2 -->
</td>
</tr>
</table>
See also
W3 official docs on HTML Tables
You can just change the project structure to add that folder as a "source" directory.
Project Structure ? Modules ? Click the generated-sources
folder and make it a sources
folder.
Or:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.4</version>
<executions>
<execution>
<id>test</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>${basedir}/target/generated-sources</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
(Update: My other answer here lays out the non-jQuery options much more thoroughly. The third option below, jQuery.each
, isn't in it though.)
Four options:
var i;
for (i = 0; i < substr.length; ++i) {
// do something with `substr[i]`
}
or in ES2015+:
for (let i = 0; i < substr.length; ++i) {
// do something with `substr[i]`
}
Advantages: Straight-forward, no dependency on jQuery, easy to understand, no issues with preserving the meaning of this
within the body of the loop, no unnecessary overhead of function calls (e.g., in theory faster, though in fact you'd have to have so many elements that the odds are you'd have other problems; details).
forEach
:As of ECMAScript5, arrays have a forEach
function on them which makes it easy to loop through the array:
substr.forEach(function(item) {
// do something with `item`
});
(Note: There are lots of other functions, not just forEach
; see the answer referenced above for details.)
Advantages: Declarative, can use a prebuilt function for the iterator if you have one handy, if your loop body is complex the scoping of a function call is sometimes useful, no need for an i
variable in your containing scope.
Disadvantages: If you're using this
in the containing code and you want to use this
within your forEach
callback, you have to either A) Stick it in a variable so you can use it within the function, B) Pass it as a second argument to forEach
so forEach
sets it as this
during the callback, or C) Use an ES2015+ arrow function, which closes over this
. If you don't do one of those things, in the callback this
will be undefined
(in strict mode) or the global object (window
) in loose mode. There used to be a second disadvantage that forEach
wasn't universally supported, but here in 2018, the only browser you're going to run into that doesn't have forEach
is IE8 (and it can't be properly polyfilled there, either).
for-of
:for (const s of substr) { // Or `let` if you want to modify it in the loop body
// do something with `s`
}
See the answer linked at the top of this answer for details on how that works.
Advantages: Simple, straightforward, offers a contained-scope variable (or constant, in the above) for the entry from the array.
Disadvantages: Not supported in any version of IE.
jQuery.each(substr, function(index, item) {
// do something with `item` (or `this` is also `item` if you like)
});
Advantages: All of the same advantages as forEach
, plus you know it's there since you're using jQuery.
Disadvantages: If you're using this
in the containing code, you have to stick it in a variable so you can use it within the function, since this
means something else within the function.
You can avoid the this
thing though, by either using $.proxy
:
jQuery.each(substr, $.proxy(function(index, item) {
// do something with `item` (`this` is the same as it was outside)
}, this));
...or Function#bind
:
jQuery.each(substr, function(index, item) {
// do something with `item` (`this` is the same as it was outside)
}.bind(this));
...or in ES2015 ("ES6"), an arrow function:
jQuery.each(substr, (index, item) => {
// do something with `item` (`this` is the same as it was outside)
});
Don't use for..in
for this (or if you do, do it with proper safeguards). You'll see people saying to (in fact, briefly there was an answer here saying that), but for..in
does not do what many people think it does (it does something even more useful!). Specifically, for..in
loops through the enumerable property names of an object (not the indexes of an array). Since arrays are objects, and their only enumerable properties by default are the indexes, it mostly seems to sort of work in a bland deployment. But it's not a safe assumption that you can just use it for that. Here's an exploration: http://jsbin.com/exohi/3
I should soften the "don't" above. If you're dealing with sparse arrays (e.g., the array has 15 elements in total but their indexes are strewn across the range 0 to 150,000 for some reason, and so the length
is 150,001), and if you use appropriate safeguards like hasOwnProperty
and checking the property name is really numeric (see link above), for..in
can be a perfectly reasonable way to avoid lots of unnecessary loops, since only the populated indexes will be enumerated.
If you are using a version of jQuery that is less than version 1.8 you can use the $('.class').size() which takes zero parameters. See documentation for more information on .size() method.
However if you are using (or plan to upgrade) to 1.8 or greater you can use $('.class').length property. See documentation for more information on .length property.
char **orderIds;
orderIds = malloc(variableNumberOfElements * sizeof(char*));
for(int i = 0; i < variableNumberOfElements; i++) {
orderIds[i] = malloc((ID_LEN + 1) * sizeof(char));
strcpy(orderIds[i], your_string[i]);
}
php curl lib is just a wrapper of cUrl, so, first of all, you should install cUrl. Download the cUrl source to your linux server. Then, use the follow commands to install:
tar zxvf cUrl_src_taz
cd cUrl_src_taz
./configure --prefix=/curl/install/home
make
make test (optional)
make install
ln -s /curl/install/home/bin/curl-config /usr/bin/curl-config
Then, copy the head files in the "/curl/install/home/include/" to "/usr/local/include". After all above steps done, the php curl extension configuration could find the original curl, and you can use the standard php extension method to install php curl.
Hope it helps you, :)
If you have a single-threaded application, you can use a simple try/catch in the Main function, however, this does not cover exceptions that may be thrown outside of the Main function, on other threads, for example (as noted in other comments). This code demonstrates how an exception can cause the application to terminate even though you tried to handle it in Main (notice how the program exits gracefully if you press enter and allow the application to exit gracefully before the exception occurs, but if you let it run, it terminates quite unhappily):
static bool exiting = false;
static void Main(string[] args)
{
try
{
System.Threading.Thread demo = new System.Threading.Thread(DemoThread);
demo.Start();
Console.ReadLine();
exiting = true;
}
catch (Exception ex)
{
Console.WriteLine("Caught an exception");
}
}
static void DemoThread()
{
for(int i = 5; i >= 0; i--)
{
Console.Write("24/{0} =", i);
Console.Out.Flush();
Console.WriteLine("{0}", 24 / i);
System.Threading.Thread.Sleep(1000);
if (exiting) return;
}
}
You can receive notification of when another thread throws an exception to perform some clean up before the application exits, but as far as I can tell, you cannot, from a console application, force the application to continue running if you do not handle the exception on the thread from which it is thrown without using some obscure compatibility options to make the application behave like it would have with .NET 1.x. This code demonstrates how the main thread can be notified of exceptions coming from other threads, but will still terminate unhappily:
static bool exiting = false;
static void Main(string[] args)
{
try
{
System.Threading.Thread demo = new System.Threading.Thread(DemoThread);
AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
demo.Start();
Console.ReadLine();
exiting = true;
}
catch (Exception ex)
{
Console.WriteLine("Caught an exception");
}
}
static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
Console.WriteLine("Notified of a thread exception... application is terminating.");
}
static void DemoThread()
{
for(int i = 5; i >= 0; i--)
{
Console.Write("24/{0} =", i);
Console.Out.Flush();
Console.WriteLine("{0}", 24 / i);
System.Threading.Thread.Sleep(1000);
if (exiting) return;
}
}
So in my opinion, the cleanest way to handle it in a console application is to ensure that every thread has an exception handler at the root level:
static bool exiting = false;
static void Main(string[] args)
{
try
{
System.Threading.Thread demo = new System.Threading.Thread(DemoThread);
demo.Start();
Console.ReadLine();
exiting = true;
}
catch (Exception ex)
{
Console.WriteLine("Caught an exception");
}
}
static void DemoThread()
{
try
{
for (int i = 5; i >= 0; i--)
{
Console.Write("24/{0} =", i);
Console.Out.Flush();
Console.WriteLine("{0}", 24 / i);
System.Threading.Thread.Sleep(1000);
if (exiting) return;
}
}
catch (Exception ex)
{
Console.WriteLine("Caught an exception on the other thread");
}
}
Just add a corner case here. It might save you 5 minutes. If you use a chain of actions, you need to put "." at the end of line, leave a space followed by the "`" (backtick). I found this out the hard way.
$yourString = "HELLO world! POWERSHELL!". `
Replace("HELLO", "Hello"). `
Replace("POWERSHELL", "Powershell")
On latest version of NPM you can just do:
npm install gitAuthor/gitRepo#tag
If the repo is a valid NPM package it will be auto-aliased in package.json as:
{
"NPMPackageName": "gitAuthor/gitRepo#tag"
}
If you could add this to @justingordon 's answer there is no need for manual aliasing now !
If you're using Node.js:
In that req.user is ObjectId format.
var mongoose = require("mongoose");
var ObjectId = mongoose.Schema.Types.ObjectId;
function getUsers(req, res)
User.findOne({"_id":req.user}, { password: 0 })
.then(data => {
res.send(data);})g
}
exports.getUsers = getUsers;
You have to escape the backslash, so try this:
str = "Hello\\nWorld";
Here are more escaped characters in Javascript.
It was changed between 3.1 and 3.2:
This is a terse description of the new features added to bash-3.2 since the release of bash-3.1.
Quoting the string argument to the [[ command's =~ operator now forces string matching, as with the other pattern-matching operators.
So use it without the quotes thus:
i="test"
if [[ $i =~ 200[78] ]] ; then
echo "OK"
else
echo "not OK"
fi
simple way is to login to phpmyadmin with root account , there goto mysql database and select user table , there edit root account and in host field add % wild card . and then through ssh flush privileges
FLUSH PRIVILEGES;
String.format("%03d", 1) // => "001"
// ¦¦¦ +-- print the number one
// ¦¦+------ ... as a decimal integer
// ¦+------- ... minimum of 3 characters wide
// +-------- ... pad with zeroes instead of spaces
See java.util.Formatter
for more information.
It's possible by accessing the key as index
for example:
Dictionary<string, int> dictionary = new Dictionary<string, int>();
dictionary["test"] = 1;
dictionary["test"] += 1;
Console.WriteLine (dictionary["test"]); // will print 2
The pop-up window does not have any close event that you can listen to.
On the other hand, there is a closed property that is set to true when the window gets closed.
You can set a timer to check that closed property and do it like this:
var win = window.open('foo.html', 'windowName',"width=200,height=200,scrollbars=no");
var timer = setInterval(function() {
if(win.closed) {
clearInterval(timer);
alert('closed');
}
}, 1000);
See this working Fiddle example!
It is a long time. Maybe like this:
public int smallestValue(int[] values)
{
int smallest = int.MaxValue;
for (int i = 0; i < values.Length; i++)
{
smallest = (values[i] < smallest ? values[i] : smallest);
}
return smallest;
}
public static int largestvalue(int[] values)
{
int largest = int.MinValue;
for (int i = 0; i < values.Length; i++)
{
largest = (values[i] > largest ? values[i] : largest);
}
return largest;
}
You can use textract module in python
Textract
for install
pip install textract
for read pdf
import textract
text = textract.process('path/to/pdf/file', method='pdfminer')
For detail Textract
See the following snippet, is this what you want?
body {
background: silver;
padding: 0 10px;
}
#content:after {
height: 10px;
display: block;
width: 100px;
background: #808080;
border-right: 1px white;
content: '';
}
#footer:before {
display: block;
content: '';
background: silver;
height: 10px;
margin-top: -20px;
margin-left: 101px;
}
#content {
background: white;
}
#footer {
padding-top: 10px;
background: #404040;
}
p {
padding: 100px;
text-align: center;
}
#footer p {
color: white;
}
_x000D_
<body>
<div id="content"><p>#content</p></div>
<div id="footer"><p>#footer</p></div>
</body>
_x000D_
Depends what you mean by "post data". You can use the HTML target=""
attribute on a <form />
tag, so it could be as simple as:
<form action="do_stuff.aspx" method="post" target="my_iframe">
<input type="submit" value="Do Stuff!">
</form>
<!-- when the form is submitted, the server response will appear in this iframe -->
<iframe name="my_iframe" src="not_submitted_yet.aspx"></iframe>
If that's not it, or you're after something more complex, please edit your question to include more detail.
There is a known bug with Internet Explorer that only occurs when you're dynamically creating your iframes, etc. using Javascript (there's a work-around here), but if you're using ordinary HTML markup, you're fine. The target attribute and frame names isn't some clever ninja hack; although it was deprecated (and therefore won't validate) in HTML 4 Strict or XHTML 1 Strict, it's been part of HTML since 3.2, it's formally part of HTML5, and it works in just about every browser since Netscape 3.
I have verified this behaviour as working with XHTML 1 Strict, XHTML 1 Transitional, HTML 4 Strict and in "quirks mode" with no DOCTYPE specified, and it works in all cases using Internet Explorer 7.0.5730.13. My test case consist of two files, using classic ASP on IIS 6; they're reproduced here in full so you can verify this behaviour for yourself.
default.asp
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC
"-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Form Iframe Demo</title>
</head>
<body>
<form action="do_stuff.asp" method="post" target="my_frame">
<input type="text" name="someText" value="Some Text">
<input type="submit">
</form>
<iframe name="my_frame" src="do_stuff.asp">
</iframe>
</body>
</html>
do_stuff.asp
<%@Language="JScript"%><?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC
"-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Form Iframe Demo</title>
</head>
<body>
<% if (Request.Form.Count) { %>
You typed: <%=Request.Form("someText").Item%>
<% } else { %>
(not submitted)
<% } %>
</body>
</html>
I would be very interested to hear of any browser that doesn't run these examples correctly.
<label className="btn btn-info btn-lg">
Upload
<input type="file" style="display: none" />
</label>
Date and time as String to Long (millis):
String dateTimeString = "2020-12-12T14:34:18.000Z";
DateTimeFormatter formatter = DateTimeFormatter
.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.ENGLISH);
LocalDateTime localDateTime = LocalDateTime
.parse(dateTimeString, formatter);
Long dateTimeMillis = localDateTime
.atZone(ZoneId.systemDefault())
.toInstant()
.toEpochMilli();
After installation of PHP.
Move to Windows\system32 folder: libssh2.dll, php_curl.dll, ssleay32.dll, libeay32.dll
Move to Apache24\bin folder libssh2.dll
Then uncomment extension=php_curl.dll in php.ini
The answers above are good. Adding a case that I used. Just if you don't want to use numpy and keep it as list without changing the contents.
You can run a small loop and change the dimension from 1xN to Nx1.
tmp=[]
for b in bus:
tmp.append([b])
bus=tmp
It is maybe not efficient while in case of very large numbers. But it works for a small set of numbers. Thanks
Simple to understand. In Below code, maxKey is the key which is holding the max value.
int maxKey = 0;
int maxValue = 0;
for(int i : birds.keySet())
{
if(birds.get(i) > maxValue)
{
maxKey = i;
maxValue = birds.get(i);
}
}
In general, fixing corrupt objects can be pretty difficult. However, in this case, we're confident that the problem is an aborted transfer, meaning that the object is in a remote repository, so we should be able to safely remove our copy and let git get it from the remote, correctly this time.
The temporary object file, with zero size, can obviously just be removed. It's not going to do us any good. The corrupt object which refers to it, d4a0e75...
, is our real problem. It can be found in .git/objects/d4/a0e75...
. As I said above, it's going to be safe to remove, but just in case, back it up first.
At this point, a fresh git pull
should succeed.
...assuming it was going to succeed in the first place. In this case, it appears that some local modifications prevented the attempted merge, so a stash
, pull
, stash pop
was in order. This could happen with any merge, though, and didn't have anything to do with the corrupted object. (Unless there was some index cleanup necessary, and the stash did that in the process... but I don't believe so.)
For iOS 8 we can just use this [UIScreen mainScreen].nativeBounds
, like that:
- (NSInteger)resolutionX
{
return CGRectGetWidth([UIScreen mainScreen].nativeBounds);
}
- (NSInteger)resolutionY
{
return CGRectGetHeight([UIScreen mainScreen].nativeBounds);
}
You should use raw_input
to take a string input. then use islower
method of str
object.
s = raw_input('Type a word')
l = []
for c in s.strip():
if c.islower():
print c
l.append(c)
print 'Total number of lowercase letters: %d'%(len(l) + 1)
Just do -
dir(s)
and you will find islower
and other attributes of str
I know this is an old question, but the accepted solution didn't quite match what I needed it to do. So, I refined it to accept various line terminators (rather than just line feed) and to use a specified character encoding (rather than ISO-8859-n). All in one method (refactor as appropriate):
public static long getLinesCount(String fileName, String encodingName) throws IOException {
long linesCount = 0;
File file = new File(fileName);
FileInputStream fileIn = new FileInputStream(file);
try {
Charset encoding = Charset.forName(encodingName);
Reader fileReader = new InputStreamReader(fileIn, encoding);
int bufferSize = 4096;
Reader reader = new BufferedReader(fileReader, bufferSize);
char[] buffer = new char[bufferSize];
int prevChar = -1;
int readCount = reader.read(buffer);
while (readCount != -1) {
for (int i = 0; i < readCount; i++) {
int nextChar = buffer[i];
switch (nextChar) {
case '\r': {
// The current line is terminated by a carriage return or by a carriage return immediately followed by a line feed.
linesCount++;
break;
}
case '\n': {
if (prevChar == '\r') {
// The current line is terminated by a carriage return immediately followed by a line feed.
// The line has already been counted.
} else {
// The current line is terminated by a line feed.
linesCount++;
}
break;
}
}
prevChar = nextChar;
}
readCount = reader.read(buffer);
}
if (prevCh != -1) {
switch (prevCh) {
case '\r':
case '\n': {
// The last line is terminated by a line terminator.
// The last line has already been counted.
break;
}
default: {
// The last line is terminated by end-of-file.
linesCount++;
}
}
}
} finally {
fileIn.close();
}
return linesCount;
}
This solution is comparable in speed to the accepted solution, about 4% slower in my tests (though timing tests in Java are notoriously unreliable).
Recently I had the same problem to include QR image/png in email. The QR image is a byte array which is generated using ZXing. We do not want to save it to a file because saving/reading from a file is too expensive (slow). So both of the answers above do not work for me. Here's what I did to solve this problem:
import javax.mail.util.ByteArrayDataSource;
import org.apache.commons.mail.ImageHtmlEmail;
...
ImageHtmlEmail email = new ImageHtmlEmail();
byte[] qrImageBytes = createQRCode(); // get your image byte array
ByteArrayDataSource qrImageDataSource = new ByteArrayDataSource(qrImageBytes, "image/png");
String contentId = email.embed(qrImageDataSource, "QR Image");
Let's say the contentId is "111122223333", then your HTML part should have this:
<img src="cid: 111122223333">
There's no need to convert the byte array to Base64 because Commons Mail does the conversion for you automatically. Hope this helps.
Oracle Workshop for Weblogic is supposed to have a pretty nice jsp editor but I've never used it. You needn't be using Weblogic to use it.
have you tried soup.findAll("div", {"id": "articlebody"})
?
sounds crazy, but if you're scraping stuff from the wild, you can't rule out multiple divs...
From the selectors specification:
Attribute values must be CSS identifiers or strings.
Identifiers cannot start with a number. Strings must be quoted.
1
is therefore neither a valid identifier nor a string.
Use "1"
(which is a string) instead.
var a = document.querySelector('a[data-a="1"]');
Use padding in percentages too and remove from the width:
padding: 5%; width: 90%;
Conditional Forms
Simple
conditional-directive
text-if-true
endif
Moderately Complex
conditional-directive
text-if-true
else
text-if-false
endif
More Complex
conditional-directive
text-if-one-is-true
else
conditional-directive
text-if-true
else
text-if-false
endif
endif
Conditional Directives
If Equal Syntax
ifeq (arg1, arg2)
ifeq 'arg1' 'arg2'
ifeq "arg1" "arg2"
ifeq "arg1" 'arg2'
ifeq 'arg1' "arg2"
If Not Equal Syntax
ifneq (arg1, arg2)
ifneq 'arg1' 'arg2'
ifneq "arg1" "arg2"
ifneq "arg1" 'arg2'
ifneq 'arg1' "arg2"
If Defined Syntax
ifdef variable-name
If Not Defined Syntax
ifndef variable-name
foreach Function
foreach Function Syntax
$(foreach var, list, text)
foreach Semantics
For each whitespace separated word in "list", the variable named by "var" is set to that word and text is executed.
First step:
pip uninstall numpy
pip uninstall opencv-python
Second step:
pip install numpy
pip install opencv-python
It's possible to have http://test_site.com and https://production_site.com. Then hardcoding the url is a bad idea. I would suggest this:
{{app.request.scheme ~ '://' ~ app.request.host ~ asset('bundle/myname/img/image.gif')}}
the problem is blade, try this
<i class="fa" v-bind:class="['{{content['cravings']}}' ? 'fa-checkbox-marked' : 'fa-checkbox-blank-outline']"></i>
Try this (Note: I don't have right now Visual Studio ,so code is copy paste from my archive(I haven't test it) :
Private Sub DataGridView1_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles DataGridView1.CellFormatting
Dim drv As DataRowView
If e.RowIndex >= 0 Then
If e.RowIndex <= ds.Tables("Products").Rows.Count - 1 Then
drv = ds.Tables("Products").DefaultView.Item(e.RowIndex)
Dim c As Color
If drv.Item("Quantity").Value < 5 Then
c = Color.LightBlue
Else
c = Color.Pink
End If
e.CellStyle.BackColor = c
End If
End If
End Sub
It's not because of a different code, but because of caching: RAM is slower than the CPU registers and a cache memory is inside the CPU to avoid to write the RAM every time a variable is changing. But the cache is not big as the RAM is, hence, it maps only a fraction of it.
The first code modifies distant memory addresses alternating them at each loop, thus requiring continuously to invalidate the cache.
The second code don't alternate: it just flow on adjacent addresses twice. This makes all the job to be completed in the cache, invalidating it only after the second loop starts.
You can define a variable @Result
to fill your data in it
DECLARE @Result AS INT
IF EXISTS (SELECT * FROM tblGLUserAccess WHERE GLUserName ='xxxxxxxx')
SET @Result = 1
else
SET @Result = 2
For VS2010:
SET VS90COMNTOOLS=%VS100COMNTOOLS%
For VS2012:
SET VS90COMNTOOLS=%VS110COMNTOOLS%
then Call:
pip install pyCrypto
In C ^
is the bitwise XOR:
0101 ^ 1100 = 1001 // in binary
There's no operator for power, you'll need to use pow
function from math.h (or some other similar function):
result = pow( a, i );
One more option not involving .bind
or ES6 is to use a child component with a handler to call the parent handler with the necessary props. Here's an example (and a link to working example is below):
var HeaderRows = React.createClass({
handleSort: function(value) {
console.log(value);
},
render: function () {
var that = this;
return(
<tr>
{this.props.defaultColumns.map(function (column) {
return (
<TableHeader value={column} onClick={that.handleSort} >
{column}
</TableHeader>
);
})}
{this.props.externalColumns.map(function (column) {
// Multi dimension array - 0 is column name
var externalColumnName = column[0];
return ( <th>{externalColumnName}</th>
);
})}
</tr>);
)
}
});
// A child component to pass the props back to the parent handler
var TableHeader = React.createClass({
propTypes: {
value: React.PropTypes.string,
onClick: React.PropTypes.func
},
render: function () {
return (
<th value={this.props.value} onClick={this._handleClick}
{this.props.children}
</th>
)
},
_handleClick: function () {
if (this.props.onClick) {
this.props.onClick(this.props.value);
}
}
});
The basic idea is for the parent component to pass the onClick
function to a child component. The child component calls the onClick
function and can access any props
passed to it (and the event
), allowing you to use any event
value or other props within the parent's onClick
function.
Here's a CodePen demo showing this method in action.
[[UIDevice currentDevice] systemVersion];
or check the version like
You can get the below Macros from here.
if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(IOS_VERSION_3_2_0))
{
UIImageView *background = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"cs_lines_back.png"]] autorelease];
theTableView.backgroundView = background;
}
Hope this helps
You should the following libraries on your class handle the onBackKeyPressed. canGoBack() checks whether the webview can reference to the previous page. If it is possible then use the goBack() function to reference the previous page (go back).
@Override
public void onBackPressed() {
if( mWebview.canGoBack()){
mWebview.goBack();
}else{
//Do something else. like trigger pop up. Add rate app or see more app
}
}
Simple Fix that Worked for Me
Run df.reset_index(inplace=True)
before grouping.
Thank you to this github comment for the solution.
Remove inplace
if you want it to return the dataframe.
Both of the above answers assume that you only have one row for each user and time_stamp. Depending on the application and the granularity of your time_stamp this may not be a valid assumption. If you need to deal with ties of time_stamp for a given user, you'd need to extend one of the answers given above.
To write this in one query would require another nested sub-query - things will start getting more messy and performance may suffer.
I would have loved to have added this as a comment but I don't yet have 50 reputation so sorry for posting as a new answer!
We have no control over the size of an enum
variable. It totally depends on the implementation, and the compiler gives the option to store a name for an integer using enum
, so enum
is following the size of an integer.
This is how you do it. No, not really.
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <stdint.h>
#define p_ntohl(u) ({const uint32_t Q=0xFF000000; \
uint32_t S=(uint32_t)(u); \
(*(uint8_t*)&Q)?S: \
( (S<<24)| \
((S<<8)&0x00FF0000)| \
((S>>8)&0x0000FF00)| \
((S>>24)&0xFF) ); })
main (void)
{
uint32_t s[0x40];
assert((unsigned char)1 == (unsigned char)(257));
memset(s, 0, sizeof(s));
fgets((char*)s, sizeof(s), stdin);
switch (p_ntohl(s[0])) {
case 'open':
case 'read':
case 'seek':
puts("ok");
break;
case 'rm\n\0':
puts("not authorized");
break;
default:
puts("unrecognized command");
}
return 0;
}
You want to do this:
<html>
<body>
<?php
print '
<script type="text/javascript">
document.write("Hello World!")
</script>
';
?>
</body>
</html>
How much a stack can grow?
You can use a VM option named ss
to adjust the maximum stack size. A VM option is usually passed using -X{option}. So you can use java -Xss1M
to set the maximum of stack size to 1M.
Each thread has at least one stack. Some Java Virtual Machines(JVM) put Java stack(Java method calls) and native stack(Native method calls in VM) into one stack, and perform stack unwinding using a Managed to Native Frame, known as M2NFrame. Some JVMs keep two stacks separately. The Xss
set the size of the Java Stack in most cases.
For many JVMs, they put different default values for stack size on different platforms.
Can we limit this growth?
When a method call occurs, a new stack frame will be created on the stack of that thread. The stack will contain local variables, parameters, return address, etc. In java, you can never put an object on stack, only object reference can be stored on stack. Since array is also an object in java, arrays are also not stored on stack. So, if you reduce the amount of your local primitive variables, parameters by grouping them into objects, you can reduce the space on stack. Actually, the fact that we cannot explicitly put objects on java stack affects the performance some time(cache miss).
Does stack has some default minimum value or default maximum value?
As I said before, different VMs are different, and may change over versions. See here.
how does garbage collection work on stack?
Garbage collections in Java is a hot topic. Garbage collection aims to collect unreachable objects in the heap. So that needs a definition of 'reachable.' Everything on the stack constitutes part of the root set references in GC. Everything that is reachable from every stack of every thread should be considered as live. There are some other root set references, like Thread objects and some class objects.
This is only a very vague use of stack on GC. Currently most JVMs are using a generational GC. This article gives brief introduction about Java GC. And recently I read a very good article talking about the GC on .net. The GC on oracle jvm is quite similar so I think that might also help you.
An ImageView gets setLayoutParams from View which uses ViewGroup.LayoutParams. If you use that, it will crash in most cases so you should use getLayoutParams() which is in View.class. This will inherit the parent View of the ImageView and will work always. You can confirm this here: ImageView extends view
Assuming you have an ImageView defined as 'image_view' and the width/height int defined as 'thumb_size'
The best way to do this:
ViewGroup.LayoutParams iv_params_b = image_view.getLayoutParams();
iv_params_b.height = thumb_size;
iv_params_b.width = thumb_size;
image_view.setLayoutParams(iv_params_b);
HTTPS is so powerful because it uses asymmetric cryptography. This type of cryptography not only allows you to create an encrypted tunnel but you can verify that you are talking to the right person, and not a hacker.
Here is Java source code which uses the asymmetric cipher RSA (used by PGP) to communicate: http://www.hushmail.com/services/downloads/
This seems a weird request and deserves a weird solution:
string[] sizes = new string[] { "105", "101", "102", "103", "90" };
foreach (var size in sizes.OrderBy(x => {
double sum = 0;
int position = 0;
foreach (char c in x.ToCharArray().Reverse()) {
sum += (c - 48) * (int)(Math.Pow(10,position));
position++;
}
return sum;
}))
{
Console.WriteLine(size);
}
A simple way using std::next_permutation
:
#include <iostream>
#include <algorithm>
#include <vector>
int main() {
int n, r;
std::cin >> n;
std::cin >> r;
std::vector<bool> v(n);
std::fill(v.end() - r, v.end(), true);
do {
for (int i = 0; i < n; ++i) {
if (v[i]) {
std::cout << (i + 1) << " ";
}
}
std::cout << "\n";
} while (std::next_permutation(v.begin(), v.end()));
return 0;
}
or a slight variation that outputs the results in an easier to follow order:
#include <iostream>
#include <algorithm>
#include <vector>
int main() {
int n, r;
std::cin >> n;
std::cin >> r;
std::vector<bool> v(n);
std::fill(v.begin(), v.begin() + r, true);
do {
for (int i = 0; i < n; ++i) {
if (v[i]) {
std::cout << (i + 1) << " ";
}
}
std::cout << "\n";
} while (std::prev_permutation(v.begin(), v.end()));
return 0;
}
A bit of explanation:
It works by creating a "selection array" (v
), where we place r
selectors, then we create all permutations of these selectors, and print the corresponding set member if it is selected in in the current permutation of v
.
You can implement it if you note that for each level r you select a number from 1 to n.
In C++, we need to 'manually' keep the state between calls that produces results (a combination): so, we build a class that on construction initialize the state, and has a member that on each call returns the combination while there are solutions: for instance
#include <iostream>
#include <iterator>
#include <vector>
#include <cstdlib>
using namespace std;
struct combinations
{
typedef vector<int> combination_t;
// initialize status
combinations(int N, int R) :
completed(N < 1 || R > N),
generated(0),
N(N), R(R)
{
for (int c = 1; c <= R; ++c)
curr.push_back(c);
}
// true while there are more solutions
bool completed;
// count how many generated
int generated;
// get current and compute next combination
combination_t next()
{
combination_t ret = curr;
// find what to increment
completed = true;
for (int i = R - 1; i >= 0; --i)
if (curr[i] < N - R + i + 1)
{
int j = curr[i] + 1;
while (i <= R-1)
curr[i++] = j++;
completed = false;
++generated;
break;
}
return ret;
}
private:
int N, R;
combination_t curr;
};
int main(int argc, char **argv)
{
int N = argc >= 2 ? atoi(argv[1]) : 5;
int R = argc >= 3 ? atoi(argv[2]) : 2;
combinations cs(N, R);
while (!cs.completed)
{
combinations::combination_t c = cs.next();
copy(c.begin(), c.end(), ostream_iterator<int>(cout, ","));
cout << endl;
}
return cs.generated;
}
test output:
1,2,
1,3,
1,4,
1,5,
2,3,
2,4,
2,5,
3,4,
3,5,
4,5,
In my case, I was getting this error because I had an input named x
and I was creating (without realizing it) a local variable called x
. I thought I was trying to access an element of the input x
(which was an array), while I was actually trying to access an element of the local variable x
(which was a scalar).
Use boost::filesystem, that will give you a portable way of doing those kinds of things and abstract away all ugly details for you.
I prefer to employ:
from matplotlib import rc
#rc('font',**{'family':'sans-serif','sans-serif':['Helvetica']})
rc('font',**{'family':'serif','serif':['Times']})
rc('text', usetex=True)
To know the difference you have to understand the box model, but basically:
returns the inner height of an element in pixels, including padding but not the horizontal scrollbar height, border, or margin
is a measurement which includes the element borders, the element vertical padding, the element horizontal scrollbar (if present, if rendered) and the element CSS height.
is a measurement of the height of an element's content including content not visible on the screen due to overflow
I will make it easier:
Consider:
<element>
<!-- *content*: child nodes: --> | content
A child node as text node | of
<div id="another_child_node"></div> | the
... and I am the 4th child node | element
</element>
scrollHeight: ENTIRE content & padding (visible or not)
Height of all content + paddings, despite of height of the element.
clientHeight: VISIBLE content & padding
Only visible height: content portion limited by explicitly defined height of the element.
offsetHeight: VISIBLE content & padding
+ border + scrollbar
Height occupied by the element on document.
The functional interfaces in Java don’t declare any checked or unchecked exception. We need to change the signature of the methods from:
boolean isActive() throws IOException;
String getNumber() throwsIOException;
To:
boolean isActive();
String getNumber();
Or handle it with try-catch block:
public Set<String> getActiveAccountNumbers() {
Stream<Account> s = accounts.values().stream();
s = s.filter(a ->
try{
a.isActive();
}catch(IOException e){
throw new RuntimeException(e);
}
);
Stream<String> ss = s.map(a ->
try{
a.getNumber();
}catch(IOException e){
throw new RuntimeException(e);
}
);
return ss.collect(Collectors.toSet());
}
Another option is to write a custom wrapper or use a library like ThrowingFunction. With the library we only need to add the dependency to our pom.xml:
<dependency>
<groupId>pl.touk</groupId>
<artifactId>throwing-function</artifactId>
<version>1.3</version>
</dependency>
And use the specific classes like ThrowingFunction, ThrowingConsumer, ThrowingPredicate, ThrowingRunnable, ThrowingSupplier.
At the end the code looks like this:
public Set<String> getActiveAccountNumbers() {
return accounts.values().stream()
.filter(ThrowingPredicate.unchecked(Account::isActive))
.map(ThrowingFunction.unchecked(Account::getNumber))
.collect(Collectors.toSet());
}
Every time I go from heavy C++ coding to Java, it takes me a little while to adapt to the lack of const-correctness in Java. This usage of const
in C++ is much different than just declaring constant variables, if you didn't know. Essentially, it ensures that an object is immutable when accessed through a special kind of pointer called a const-pointer When in Java, in places where I'd normally want to return a const-pointer, I instead return a reference with an interface type containing only methods that shouldn't have side effects. Unfortunately, this isn't enforced by the langauge.
Wikipedia offers the following information on the subject:
Interestingly, the Java language specification regards const as a reserved keyword — i.e., one that cannot be used as variable identifier — but assigns no semantics to it. It is thought that the reservation of the keyword occurred to allow for an extension of the Java language to include C++-style const methods and pointer to const type. The enhancement request ticket in the Java Community Process for implementing const correctness in Java was closed in 2005, implying that const correctness will probably never find its way into the official Java specification.
If you can use boost,
#include <boost/filesystem.hpp>
path p("C:\\MyDirectory\\MyFile.bat");
string basename = p.filename().string();
//or
//string basename = path("C:\\MyDirectory\\MyFile.bat").filename().string();
This is all.
I recommend you to use boost library. Boost gives you a lot of conveniences when you work with C++. It supports almost all platforms.
If you use Ubuntu, you can install boost library by only one line sudo apt-get install libboost-all-dev
(ref. How to Install boost on Ubuntu?)
There's a setting in Safari under "Tabs" that labeled Open pages in tabs instead of windows:
with a drop down with a few options. I'm thinking yours may be set to Always
. Bottom line is you can't rely on a browser opening a new window.
The one liner "no imports" version
a = [0,88,26,3,48,85,65,16,97,83,91]
ind_pos = [1,5,7]
[ a[i] for i in ind_pos ]
func post() {
NotificationCenter.default.post(name: Notification.Name("SomeNotificationName"),
object: nil,
userInfo:["key0": "value", "key1": 1234])
}
func addObservers() {
NotificationCenter.default.addObserver(self,
selector: #selector(someMethod),
name: Notification.Name("SomeNotificationName"),
object: nil)
}
@objc func someMethod(_ notification: Notification) {
let info0 = notification.userInfo?["key0"]
let info1 = notification.userInfo?["key1"]
}
Replace Notification.Name("SomeNotificationName")
with .someNotificationName
:
extension Notification.Name {
static let someNotificationName = Notification.Name("SomeNotificationName")
}
Replace "key0"
and "key1"
with Notification.Key.key0
and Notification.Key.key1
:
extension Notification {
enum Key: String {
case key0
case key1
}
}
Why should I definitely do this ? To avoid costly typo errors, enjoy renaming, enjoy find usage etc...
For SDK >= 23, please add setLargeIcon
notification = new Notification.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setLargeIcon(context.getResources(), R.drawable.lg_logo))
.setContentTitle(title)
.setStyle(new Notification.BigTextStyle().bigText(msg))
.setAutoCancel(true)
.setContentText(msg)
.setContentIntent(contentIntent)
.setSound(sound)
.build();
For Windows users:
Mongo version 4.4
Use following commands:
NET STOP MONGODB
– To stop MongoDB as a service,if this returns "mongoDb service is not running then use below command to start service"
NET START MONGODB
– To start MongoDB as a service.
This worked for me.
OK, after 2 years it's finally time to correct the syntax:
SELECT t1.value, t2.value
FROM MyTable t1
JOIN MyTable t2
ON t1.id = t2.id
WHERE t1.id = @id
AND t1.status = @status1
AND t2.status = @status2
I know this is an old thread but an easier solution would be to embed an input within the label like so:
<label>Label one: <input id="input1" type="text"></label>
_x000D_
This below code will give selected row, you can parse the values from it and send to the AJAX call.
$(".selected").click(function () {
var row = $(this).parent().parent().parent().html();
});
You need to add the _token
in your form i.e
{{ form_row(form._token) }}
As of now your form is missing the CSRF token field. If you use the twig form functions to render your form like form(form)
this will automatically render the CSRF token field for you, but your code shows you are rendering your form with raw HTML like <form></form>
, so you have to manually render the field.
Or, simply add {{ form_rest(form) }}
before the closing tag of the form.
According to docs
This renders all fields that have not yet been rendered for the given form. It's a good idea to always have this somewhere inside your form as it'll render hidden fields for you and make any fields you forgot to render more obvious (since it'll render the field for you).
A Scala version based on Zaz's answer.
case class DocumentEx(document: Document) {
def toXmlString(pretty: Boolean = false):Try[String] = {
getStringFromDocument(document, pretty)
}
}
implicit def documentToDocumentEx(document: Document):DocumentEx = {
DocumentEx(document)
}
def getStringFromDocument(doc: Document, pretty:Boolean): Try[String] = {
try
{
val domSource= new DOMSource(doc)
val writer = new StringWriter()
val result = new StreamResult(writer)
val tf = TransformerFactory.newInstance()
val transformer = tf.newTransformer()
if (pretty)
transformer.setOutputProperty(OutputKeys.INDENT, "yes")
transformer.transform(domSource, result)
Success(writer.toString);
}
catch {
case ex: TransformerException =>
Failure(ex)
}
}
With that, you can do either doc.toXmlString()
or call the getStringFromDocument(doc)
function.
After my initial research i found that when we close a browser, the browser will close all the tabs one by one to completely close the browser. Hence, i observed that there will be very little time delay between closing the tabs. So I taken this time delay as my main validation point and able to achieve the browser and tab close event detection.
//Detect Browser or Tab Close Events
$(window).on('beforeunload',function(e) {
e = e || window.event;
var localStorageTime = localStorage.getItem('storagetime')
if(localStorageTime!=null && localStorageTime!=undefined){
var currentTime = new Date().getTime(),
timeDifference = currentTime - localStorageTime;
if(timeDifference<25){//Browser Closed
localStorage.removeItem('storagetime');
}else{//Browser Tab Closed
localStorage.setItem('storagetime',new Date().getTime());
}
}else{
localStorage.setItem('storagetime',new Date().getTime());
}
});
change your flag Windowmanger flag "TYPE_SYSTEM_OVERLAY" to "TYPE_APPLICATION_OVERLAY" in your project to make compatible with Android O
WindowManager.LayoutParams.TYPE_PHONE
to WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY
I used a try - catch block to solve the issue temporarily.
// Unregister Observer - Stop monitoring the underlying data source.
if (mDataSetChangeObserver != null) {
// Sometimes the Fragment onDestroy() unregisters the observer before calling below code
// See <a>http://stackoverflow.com/questions/6165070/receiver-not-registered-exception-error</a>
try {
getContext().unregisterReceiver(mDataSetChangeObserver);
mDataSetChangeObserver = null;
}
catch (IllegalArgumentException e) {
// Check wether we are in debug mode
if (BuildConfig.IS_DEBUG_MODE) {
e.printStackTrace();
}
}
}
In NetBeans IDE 8.0 you can use a community contributed plugin https://github.com/tusharvjoshi/nbrunwithargs which will allow you to pass arguments while Run Project or Run Single File command.
For passing arguments to Run Project command either you have to set the arguments in the Project properties Run panel, or use the new command available after installing the plugin which says Run with Arguments
For passing command line arguments to a Java file having main method, just right click on the method and choose Run with Arguments command, of this plugin
UPDATE (24 mar 2014) This plugin is now available in NetBeans Plugin Portal that means it can be installed from Plugins dialog box from the available plugins shown from community contributed plugins, in NetBeans IDE 8.0
The answers above are perfectly valid, but a vectorized solution exists, in the form of numpy.select
. This allows you to define conditions, then define outputs for those conditions, much more efficiently than using apply
:
First, define conditions:
conditions = [
df['eri_hispanic'] == 1,
df[['eri_afr_amer', 'eri_asian', 'eri_hawaiian', 'eri_nat_amer', 'eri_white']].sum(1).gt(1),
df['eri_nat_amer'] == 1,
df['eri_asian'] == 1,
df['eri_afr_amer'] == 1,
df['eri_hawaiian'] == 1,
df['eri_white'] == 1,
]
Now, define the corresponding outputs:
outputs = [
'Hispanic', 'Two Or More', 'A/I AK Native', 'Asian', 'Black/AA', 'Haw/Pac Isl.', 'White'
]
Finally, using numpy.select
:
res = np.select(conditions, outputs, 'Other')
pd.Series(res)
0 White
1 Hispanic
2 White
3 White
4 Other
5 White
6 Two Or More
7 White
8 Haw/Pac Isl.
9 White
dtype: object
Why should numpy.select
be used over apply
? Here are some performance checks:
df = pd.concat([df]*1000)
In [42]: %timeit df.apply(lambda row: label_race(row), axis=1)
1.07 s ± 4.16 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
In [44]: %%timeit
...: conditions = [
...: df['eri_hispanic'] == 1,
...: df[['eri_afr_amer', 'eri_asian', 'eri_hawaiian', 'eri_nat_amer', 'eri_white']].sum(1).gt(1),
...: df['eri_nat_amer'] == 1,
...: df['eri_asian'] == 1,
...: df['eri_afr_amer'] == 1,
...: df['eri_hawaiian'] == 1,
...: df['eri_white'] == 1,
...: ]
...:
...: outputs = [
...: 'Hispanic', 'Two Or More', 'A/I AK Native', 'Asian', 'Black/AA', 'Haw/Pac Isl.', 'White'
...: ]
...:
...: np.select(conditions, outputs, 'Other')
...:
...:
3.09 ms ± 17 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
Using numpy.select
gives us vastly improved performance, and the discrepancy will only increase as the data grows.
These are Microsoft defined typedefs which correspond to:
LPCSTR: pointer to null terminated const string of char
LPSTR: pointer to null terminated char string of char
(often a buffer is passed and used as an 'output' param)
LPCWSTR: pointer to null terminated string of const wchar_t
LPWSTR: pointer to null terminated string of wchar_t
(often a buffer is passed and used as an 'output' param)
To "convert" a std::string
to a LPCSTR depends on the exact context but usually calling .c_str()
is sufficient.
This works.
void TakesString(LPCSTR param);
void f(const std::string& param)
{
TakesString(param.c_str());
}
Note that you shouldn't attempt to do something like this.
LPCSTR GetString()
{
std::string tmp("temporary");
return tmp.c_str();
}
The buffer returned by .c_str()
is owned by the std::string
instance and will only be valid until the string is next modified or destroyed.
To convert a std::string
to a LPWSTR
is more complicated. Wanting an LPWSTR
implies that you need a modifiable buffer and you also need to be sure that you understand what character encoding the std::string
is using. If the std::string
contains a string using the system default encoding (assuming windows, here), then you can find the length of the required wide character buffer and perform the transcoding using MultiByteToWideChar
(a Win32 API function).
e.g.
void f(const std:string& instr)
{
// Assumes std::string is encoded in the current Windows ANSI codepage
int bufferlen = ::MultiByteToWideChar(CP_ACP, 0, instr.c_str(), instr.size(), NULL, 0);
if (bufferlen == 0)
{
// Something went wrong. Perhaps, check GetLastError() and log.
return;
}
// Allocate new LPWSTR - must deallocate it later
LPWSTR widestr = new WCHAR[bufferlen + 1];
::MultiByteToWideChar(CP_ACP, 0, instr.c_str(), instr.size(), widestr, bufferlen);
// Ensure wide string is null terminated
widestr[bufferlen] = 0;
// Do something with widestr
delete[] widestr;
}
Phonegap can be a little tricky for freshers. I spent much time trying to find the optimum way for creating a robust android application which can access the phone's native features.
This link provides a step wise method for creating a Phonegap android application using windows, html and javascript.
Float is Approximate-number data type, which means that not all values in the data type range can be represented exactly.
Decimal/Numeric is Fixed-Precision data type, which means that all the values in the data type range can be represented exactly with precision and scale. You can use decimal for money saving.
Converting from Decimal or Numeric to float can cause some loss of precision. For the Decimal or Numeric data types, SQL Server considers each specific combination of precision and scale as a different data type. DECIMAL(2,2) and DECIMAL(2,4) are different data types. This means that 11.22 and 11.2222 are different types though this is not the case for float. For FLOAT(6) 11.22 and 11.2222 are same data types.
You can also use money data type for saving money. This is native data type with 4 digit precision for money. Most experts prefers this data type for saving money.
Quite an intuitive error message - just need to give the columns in d names
Change to either this
d as
(
select
[duration] = month(clothdeliverydate),
[bkdqty] = SUM(CONVERT(INT, deliveredqty))
FROM
barcodetable
where
month(clothdeliverydate) is not null
group by month(clothdeliverydate)
)
Or you can explicitly declare the fields in the definition of the cte:
d ([duration], [bkdqty]) as
(
select
month(clothdeliverydate),
SUM(CONVERT(INT, deliveredqty))
FROM
barcodetable
where
month(clothdeliverydate) is not null
group by month(clothdeliverydate)
)
With the help of @Sogger's answer, I created a generic Handler:
public class MainThreadHandler<T extends MessageHandler> extends Handler {
private final WeakReference<T> mInstance;
public MainThreadHandler(T clazz) {
// Remove the following line to use the current thread.
super(Looper.getMainLooper());
mInstance = new WeakReference<>(clazz);
}
@Override
public void handleMessage(Message msg) {
T clazz = mInstance.get();
if (clazz != null) {
clazz.handleMessage(msg);
}
}
}
The interface:
public interface MessageHandler {
void handleMessage(Message msg);
}
I'm using it as follows. But I'm not 100% sure if this is leak-safe. Maybe someone could comment on this:
public class MyClass implements MessageHandler {
private static final int DO_IT_MSG = 123;
private MainThreadHandler<MyClass> mHandler = new MainThreadHandler<>(this);
private void start() {
// Do it in 5 seconds.
mHandler.sendEmptyMessageDelayed(DO_IT_MSG, 5 * 1000);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case DO_IT_MSG:
doIt();
break;
}
}
...
}
There is a Win32 (C++) function in shlwapi.dll that does exactly what you want: PathRelativePathTo()
I'm not aware of any way to access this from .NET other than to P/Invoke it, though.
Null is similar to zero pointer in C++. So it is a reference which not pointing to any value.
DBNull.Value
is completely different and is a constant which is returned when a field value contains NULL.
import sys
try:
print("stuff")
except:
sys.exit(1) # exiing with a non zero value is better for returning from an error
Try:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<SeekBar
android:id="@+id/seekBar1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:rotation="270"
/>
</RelativeLayout>
What you should do is create a service to share data between controllers.
Nice tutorial https://www.youtube.com/watch?v=HXpHV5gWgyk
Create mysql connection with following parameter. "'raise_on_warnings': False". It will ignore the warning. e.g.
config = {'user': 'user','password': 'passwd','host': 'localhost','database': 'db', 'raise_on_warnings': False,}
cnx = mysql.connector.connect(**config)
Yes using Option Explicit
is a good habit. Using .Select
however is not :) it reduces the speed of the code. Also fully justify sheet names else the code will always run for the Activesheet
which might not be what you actually wanted.
Is this what you are trying?
Option Explicit
Sub Sample()
Dim lastRow As Long, i As Long
Dim CopyRange As Range
'~~> Change Sheet1 to relevant sheet name
With Sheets("Sheet1")
lastRow = .Range("A" & .Rows.Count).End(xlUp).Row
For i = 2 To lastRow
If Len(Trim(.Range("A" & i).Value)) <> 0 Then
If CopyRange Is Nothing Then
Set CopyRange = .Rows(i)
Else
Set CopyRange = Union(CopyRange, .Rows(i))
End If
Else
Exit For
End If
Next
If Not CopyRange Is Nothing Then
'~~> Change Sheet2 to relevant sheet name
CopyRange.Copy Sheets("Sheet2").Rows(1)
End If
End With
End Sub
NOTE
If if you have data from Row 2 till Row 10 and row 11 is blank and then you have data again from Row 12 then the above code will only copy data from Row 2 till Row 10
If you want to copy all rows which have data then use this code.
Option Explicit
Sub Sample()
Dim lastRow As Long, i As Long
Dim CopyRange As Range
'~~> Change Sheet1 to relevant sheet name
With Sheets("Sheet1")
lastRow = .Range("A" & .Rows.Count).End(xlUp).Row
For i = 2 To lastRow
If Len(Trim(.Range("A" & i).Value)) <> 0 Then
If CopyRange Is Nothing Then
Set CopyRange = .Rows(i)
Else
Set CopyRange = Union(CopyRange, .Rows(i))
End If
End If
Next
If Not CopyRange Is Nothing Then
'~~> Change Sheet2 to relevant sheet name
CopyRange.Copy Sheets("Sheet2").Rows(1)
End If
End With
End Sub
Hope this is what you wanted?
Sid
Access the field with array notation to avoid strict type checking on single field:
data['propertyName']; //will work even if data has not declared propertyName
Alternative way is (un)cast the variable for single access:
(<any>data).propertyName;//access propertyName like if data has no type
The first is shorter, the second is more explicit about type (un)casting
You can also totally disable type checking on all variable fields:
let untypedVariable:any= <any>{}; //disable type checking while declaring the variable
untypedVariable.propertyName = anyValue; //any field in untypedVariable is assignable and readable without type checking
Note: This would be more dangerous than avoid type checking just for a single field access, since all consecutive accesses on all fields are untyped
To make @Mark Fisher's answer more clear, the inserted view being inflated should be a xml file under layout folder but without a layout (ViewGroup) like LinearLayout etc. inside. My example:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/i_am_id"
android:text="my name"
android:textSize="17sp"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"/>
Then, the insertion point should be a layout like LinearLayout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/aaa"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/insert_point"
android:layout_width="match_parent"
android:layout_height="match_parent">
</LinearLayout>
</RelativeLayout>
Then the code should be
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_shopping_cart);
LayoutInflater inflater = getLayoutInflater();
View view = inflater.inflate(R.layout.my_view, null);
ViewGroup main = (ViewGroup) findViewById(R.id.insert_point);
main.addView(view, 0);
}
The reason I post this very similar answer is that when I tried to implement Mark's solution, I got stuck on what xml file should I use for insert_point and the child view. I used layout in the child view firstly and it was totally not working, which took me several hours to figure out. So hope my exploration can save others' time.
Lists of bytes are subscriptable (at least in Python 3.6). This way you can retrieve the decimal value of each byte individually.
>>> intlist = [64, 4, 26, 163, 255]
>>> bytelist = bytes(intlist) # b'@x04\x1a\xa3\xff'
>>> for b in bytelist:
... print(b) # 64 4 26 163 255
>>> [b for b in bytelist] # [64, 4, 26, 163, 255]
>>> bytelist[2] # 26
Try this:
String text = mySpinner.getSelectedItem().toString();
Like this you can get value for different Spinners.
It's creating the file in the same directory as your script. Try this instead.
$content = "some text here";
$fp = fopen($_SERVER['DOCUMENT_ROOT'] . "/myText.txt","wb");
fwrite($fp,$content);
fclose($fp);
The string is surrounded by double quotes. Yes, that's not a valid character in a path.
You should probably tackle it at the source, but you can strip them out with:
path = path.Replace("\"", "");
.html(''). was the only method that solved it for me.
The Error is here
lastrow = wsPOR.Range("A" & Rows.Count).End(xlUp).Row + 1
wsPOR is a workbook and not a worksheet. If you are working with "Sheet1" of that workbook then try this
lastrow = wsPOR.Sheets("Sheet1").Range("A" & _
wsPOR.Sheets("Sheet1").Rows.Count).End(xlUp).Row + 1
Similarly
wsPOR.Range("A2:G" & lastrow).Select
should be
wsPOR.Sheets("Sheet1").Range("A2:G" & lastrow).Select
From Python v2.7.14 documentation - 18.1.11. email: Examples:
Here’s an example of how to create an HTML message with an alternative plain text version:
#! /usr/bin/python
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
# me == my email address
# you == recipient's email address
me = "[email protected]"
you = "[email protected]"
# Create message container - the correct MIME type is multipart/alternative.
msg = MIMEMultipart('alternative')
msg['Subject'] = "Link"
msg['From'] = me
msg['To'] = you
# Create the body of the message (a plain-text and an HTML version).
text = "Hi!\nHow are you?\nHere is the link you wanted:\nhttp://www.python.org"
html = """\
<html>
<head></head>
<body>
<p>Hi!<br>
How are you?<br>
Here is the <a href="http://www.python.org">link</a> you wanted.
</p>
</body>
</html>
"""
# Record the MIME types of both parts - text/plain and text/html.
part1 = MIMEText(text, 'plain')
part2 = MIMEText(html, 'html')
# Attach parts into message container.
# According to RFC 2046, the last part of a multipart message, in this case
# the HTML message, is best and preferred.
msg.attach(part1)
msg.attach(part2)
# Send the message via local SMTP server.
s = smtplib.SMTP('localhost')
# sendmail function takes 3 arguments: sender's address, recipient's address
# and message to send - here it is sent as one string.
s.sendmail(me, you, msg.as_string())
s.quit()
If you have tried all the other answers, and it still hasn't work, you can try skipping a line:
Scanner scan = new Scanner(System.in);
scan.nextLine();
String s = scan.nextLine();
System.out.println("String is " + s);
By default .
(any character) does not match newline characters.
This means you can simply match zero or more of any character then append the end tag.
Find: <li><a href="#">.*
Replace: $0</a>
In order to be independent of the language and locale settings, you should use the ISO 8601 YYYYMMDD
format - this will work on any SQL Server system with any language and regional setting in effect:
SELECT
CAST(
CAST(year AS VARCHAR(4)) +
RIGHT('0' + CAST(month AS VARCHAR(2)), 2) +
RIGHT('0' + CAST(day AS VARCHAR(2)), 2)
AS DATETIME)
Could it be that you're using a NumPy array? Python has the array module, but that does not support multi-dimensional arrays. Normal Python lists are single-dimensional too.
However, if you have a simple two-dimensional list like this:
A = [[1,2,3,4],
[5,6,7,8]]
then you can extract a column like this:
def column(matrix, i):
return [row[i] for row in matrix]
Extracting the second column (index 1):
>>> column(A, 1)
[2, 6]
Or alternatively, simply:
>>> [row[1] for row in A]
[2, 6]
This is what I did:
Timestamp timestamp = Timestamp.valueOf(stringValue);
where stringValue
can be any format of Date/Time.
Try using a ConcurrentHashMap
instead of a plain HashMap
It's very simple to define a function inside razor.
@functions {
public static HtmlString OrderedList(IEnumerable<string> items)
{ }
}
So you can call a the function anywhere. Like
@Functions.OrderedList(new[] { "Blue", "Red", "Green" })
However, this same work can be done through helper
too. As an example
@helper OrderedList(IEnumerable<string> items){
<ol>
@foreach(var item in items){
<li>@item</li>
}
</ol>
}
So what is the difference?? According to this previous post both @helpers and @functions do share one thing in common - they make code reuse a possibility within Web Pages. They also share another thing in common - they look the same at first glance, which is what might cause a bit of confusion about their roles. However, they are not the same. In essence, a helper is a reusable snippet of Razor sytnax exposed as a method, and is intended for rendering HTML to the browser, whereas a function is static utility method that can be called from anywhere within your Web Pages application. The return type for a helper is always HelperResult, whereas the return type for a function is whatever you want it to be.
One way would be to first flatten the list with a SelectMany
:
subList.SelectMany(m => m).Where(k => k.Key.Equals("valueTitle"));