If you enabled it as a DHCP client then your router should get an IP address from a DHCP server. If you connect your router on a net with a DHCP server you should reach your router's administrator page on the IP address assigned by the DHCP.
The problem is that the regex pattern is being HTML encoded twice, once when the regex is being built, and once when being rendered in your view.
For now, try wrapping your TextBoxFor in an Html.Raw
, like so:
@Html.Raw(Html.TextBoxFor(model => Model.FirstName, new { }))
Thats really insane, i tried everything, synced with Gradle files, invalidated and restarted android studio. Still the problem persisted. Last resort was deleting .idea/libraries folder and it worked as charm.
System.setProperty("javax.net.ssl.trustStore", path_to_your_jks_file);
To add a new cookie, use HttpServletResponse.addCookie(Cookie). The Cookie is pretty much a key value pair taking a name and value as strings on construction.
Assuming that you're talking about desktop and not web applications:
When you add settings to a project, VS creates a file named app.config
in your project directory and stores the settings in that file. It also builds the Settings.cs
file that provides the static accessors to the individual settings.
At compile time, VS will (by default; you can change this) copy the app.config
to the build directory, changing its name to match the executable (e.g. if your executable is named foo.exe
, the file will be named foo.exe.config
), which is the name the .NET configuration manager looks for when it retrieves settings at runtime.
If you change a setting through the VS settings editor, it will update both app.config
and Settings.cs
. (If you look at the property accessors in the generated code in Settings.cs
, you'll see that they're marked with an attribute containing the default value of the setting that's in your app.config
file.) If you change a setting by editing the app.config
file directly, Settings.cs
won't be updated, but the new value will still be used by your program when you run it, because app.config
gets copied to foo.exe.config
at compile time. If you turn this off (by setting the file's properties), you can change a setting by directly editing the foo.exe.config
file in the build directory.
Then there are user-scoped settings.
Application-scope settings are read-only. Your program can modify and save user-scope settings, thus allowing each user to have his/her own settings. These settings aren't stored in the foo.exe.config
file (since under Vista, at least, programs can't write to any subdirectory of Program Files
without elevation); they're stored in a configuration file in the user's application data directory.
The path to that file is %appdata%\%publisher_name%\%program_name%\%version%\user.config
, e.g. C:\Users\My Name\AppData\Local\My_Company\My_Program.exe\1.0.0\user.config
. Note that if you've given your program a strong name, the strong name will be appended to the program name in this path.
if (Build.VERSION.SDK_INT < 16) {
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
} else {
View decorView = getWindow().getDecorView();
int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;
decorView.setSystemUiVisibility(uiOptions);
ActionBar actionBar = getActionBar();
actionBar.hide();
}
<p:ajax listener="#{my.handleChange}" update="id of component that need to be rerender after change" process="@this" />
import javax.faces.component.UIOutput;
import javax.faces.event.AjaxBehaviorEvent;
public void handleChange(AjaxBehaviorEvent vce){
String name= (String) ((UIOutput) vce.getSource()).getValue();
}
Please note that on msys2 I've found these commands to be helpful:
$ pacman -S python3-pip
$ pip3 install --upgrade pip
$ pip3 install --user package_name
just put the autoplay="false" on source tag.. :)
this works for me, sudo apt-get install libx11-dev
I really wanted a pure css
solution to this myself, since sprinkling a weighty javascript solution around all of my views seemed like an unpleasant option. Finally found the @media.hover query, which can detect "whether the primary input mechanism allows the user to hover over elements." This avoids touch devices where "hovering" is more of an emulated action than a direct capability of the input device.
So for example, if I have a link:
<a href="/" class="link">Home</a>
Then I can safely style it to only :hover
when the device easily supports it with this css
:
@media (hover: hover) {
.link:hover { /* hover styles */ }
}
While most modern browsers support interaction media feature queries, some popular browsers such as IE and Firefox do not. In my case this works fine, since I only intended to support Chrome on desktop and Chrome and Safari on mobile.
Java and Javascript are similar like Car and Carpet are similar.
You can update with MERGE
Command with much more control over MATCHED
and NOT MATCHED
:(I slightly changed the source code to demonstrate my point)
USE tempdb;
GO
IF(OBJECT_ID('target') > 0)DROP TABLE dbo.target
IF(OBJECT_ID('source') > 0)DROP TABLE dbo.source
CREATE TABLE dbo.Target
(
EmployeeID INT ,
EmployeeName VARCHAR(100) ,
CONSTRAINT Target_PK PRIMARY KEY ( EmployeeID )
);
CREATE TABLE dbo.Source
(
EmployeeID INT ,
EmployeeName VARCHAR(100) ,
CONSTRAINT Source_PK PRIMARY KEY ( EmployeeID )
);
GO
INSERT dbo.Target
( EmployeeID, EmployeeName )
VALUES ( 100, 'Mary' );
INSERT dbo.Target
( EmployeeID, EmployeeName )
VALUES ( 101, 'Sara' );
INSERT dbo.Target
( EmployeeID, EmployeeName )
VALUES ( 102, 'Stefano' );
GO
INSERT dbo.Source
( EmployeeID, EmployeeName )
VALUES ( 100, 'Bob' );
INSERT dbo.Source
( EmployeeID, EmployeeName )
VALUES ( 104, 'Steve' );
GO
SELECT * FROM dbo.Source
SELECT * FROM dbo.Target
MERGE Target AS T
USING Source AS S
ON ( T.EmployeeID = S.EmployeeID )
WHEN MATCHED THEN
UPDATE SET T.EmployeeName = S.EmployeeName + '[Updated]';
GO
SELECT '-------After Merge----------'
SELECT * FROM dbo.Source
SELECT * FROM dbo.Target
I actually disagree with SLaks. That solution did not work for me. Exception did not happen as expected. But this code worked for me:
if(System.IO.Directory.Exists(path))
{
...
}
it is enough to modify something in your text editor and reload localhost. all your connection will be lost nd you have opsibility to ng serve the new project in the console.
Consider it this way:
Pass: Python works purely on indentation! There are no empty curly braces, unlike other languages.
So, if you want to do nothing in case a condition is true there is no option other than pass.
Continue: This is useful only in case of loops. In case, for a range of values, you don't want to execute the remaining statements of the loop after that condition is true for that particular pass, then you will have to use continue.
SELECT column_name, COUNT(column_name)
FROM table_name
GROUP BY column_name
Samsung Galaxy Ace advertises 158 MB of internal storage in its specifications, but the core applications and services consume about 110 MB of that (I used the task manager on the device to inspect this). My app was 52 MB, because it had a lot of assets. Once I deleted some of those down to 45 MB, the app managed to install without a problem. The device was still alerting me that internal storage was almost full, and I should uninstall some apps, even though I only had one app installed.
After installing a release version of the .apk bundle and then uninstalling it, my device displays 99 MB of free space, so it might be debugging information cluttering up the device after all. See Louis Semprini's answer.
By using CHMOD yes:
For Recursive file:
chmod -R 777 foldername or pathname
For non recursive:
chmod 777 foldername or pathname
I was facing same issue and I just started app with new port and everything looks good.
ng serve --port 4201
Search "maven-jar-plugin" in pom.xml and add version tag maven version
The following example creates a SqlConnection and a SqlTransaction. It also demonstrates how to use the BeginTransaction, Commit, and Rollback methods. The transaction is rolled back on any error, or if it is disposed without first being committed. Try/Catch error handling is used to handle any errors when attempting to commit or roll back the transaction.
private static void ExecuteSqlTransaction(string connectionString)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
SqlCommand command = connection.CreateCommand();
SqlTransaction transaction;
// Start a local transaction.
transaction = connection.BeginTransaction("SampleTransaction");
// Must assign both transaction object and connection
// to Command object for a pending local transaction
command.Connection = connection;
command.Transaction = transaction;
try
{
command.CommandText =
"Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')";
command.ExecuteNonQuery();
command.CommandText =
"Insert into Region (RegionID, RegionDescription) VALUES (101, 'Description')";
command.ExecuteNonQuery();
// Attempt to commit the transaction.
transaction.Commit();
Console.WriteLine("Both records are written to database.");
}
catch (Exception ex)
{
Console.WriteLine("Commit Exception Type: {0}", ex.GetType());
Console.WriteLine(" Message: {0}", ex.Message);
// Attempt to roll back the transaction.
try
{
transaction.Rollback();
}
catch (Exception ex2)
{
// This catch block will handle any errors that may have occurred
// on the server that would cause the rollback to fail, such as
// a closed connection.
Console.WriteLine("Rollback Exception Type: {0}", ex2.GetType());
Console.WriteLine(" Message: {0}", ex2.Message);
}
}
}
}
For jupyter lab this should work (@Alasja)
from IPython.display import HTML
HTML('''<script>
var code_show_err = false;
var code_toggle_err = function() {
var stderrNodes = document.querySelectorAll('[data-mime-type="application/vnd.jupyter.stderr"]')
var stderr = Array.from(stderrNodes)
if (code_show_err){
stderr.forEach(ele => ele.style.display = 'block');
} else {
stderr.forEach(ele => ele.style.display = 'none');
}
code_show_err = !code_show_err
}
document.addEventListener('DOMContentLoaded', code_toggle_err);
</script>
To toggle on/off output_stderr, click <a onclick="javascript:code_toggle_err()">here</a>.''')
Java is a server side language, whereas javascript is a client side language. Both cannot communicate. If you have setup some server side script using Java you could use AJAX on the client in order to send an asynchronous request to it and thus invoke any possible Java functions. For example if you use jQuery as js framework you may take a look at the $.ajax()
method. Or if you wanted to do it using plain javascript, here's a tutorial.
There's a far more simpler solution to tackle this.
The reason why you get ValueError: Index contains duplicate entries, cannot reshape
is because, once you unstack "Location
", then the remaining index columns "id
" and "date
" combinations are no longer unique.
You can avoid this by retaining the default index column (row #) and while setting the index using "id
", "date
" and "location
", add it in "append
" mode instead of the default overwrite mode.
So use,
e.set_index(['id', 'date', 'location'], append=True)
Once this is done, your index columns will still have the default index along with the set indexes. And unstack
will work.
Let me know how it works out.
As I just came across this topic I wanted to share the reason and solution why I got the message "invalid or corrupt jarfile":
I had updated the version of the "maven-jar-plugin" in my pom.xml from 2.1 to 3.1.2. Everything still went fine and a jar file was built. But somehow it obviously wouldn't run anymore.
As soon as i set the "maven-jar-plugin" version back to 2.1 again, the problem was gone.
If sounds like the type ACTInterface
is not public
, but is using the default accessibility of either internal
(if it is top-level) or private
(if it is nested in another type).
Giving the type the public
modifier would fix it.
Another approach is to make both the type and the method internal
, if that is your intent.
The issue is not the accessibility of the field (oActInterface
), but rather of the type ACTInterface
itself.
Restarting the VM worked for me
It's OK to run Docker-in-Docker (DinD) and in fact Docker (the company) has an official DinD image for this.
The caveat however is that it requires a privileged container, which depending on your security needs may not be a viable alternative.
The alternative solution of running Docker using sibling containers (aka Docker-out-of-Docker or DooD) does not require a privileged container, but has a few drawbacks that stem from the fact that you are launching the container from within a context that is different from that one in which it's running (i.e., you launch the container from within a container, yet it's running at the host's level, not inside the container).
I wrote a blog describing the pros/cons of DinD vs DooD here.
Having said this, Nestybox (a startup I just founded) is working on a solution that runs true Docker-in-Docker securely (without using privileged containers). You can check it out at www.nestybox.com.
I would like to re-emphasize the following:
Took me ages to realise, somehow even after reading the answers here it didn't click.
Also, there was just a typo in your original post.
'min:2|max5'
should have been 'min:2|max:5'
.
Notice the ":" for the "max" rule.
Ok, here is the JS code:
var data = JSON.parse('{"c":{"a":{"name":"cable - black","value":2}}}')
for (var event in data) {
var dataCopy = data[event];
for (data in dataCopy) {
var mainData = dataCopy[data];
for (key in mainData) {
if (key.match(/name|value/)) {
alert('key : ' + key + ':: value : ' + mainData[key])
}
}
}
}?
dotnet is the official home of .NET on GitHub. It's a great starting point to find many .NET OSS projects from Microsoft and the community, including many that are part of the .NET Foundation.
This may be a great start to support Linux.
With Swift you don't need anymore to check the equality with isEqualToString
You can now use ==
Example:
let x = "hello"
let y = "hello"
let isEqual = (x == y)
now isEqual is true
.
The answer to this question in 2020 is IT DOESN'T WORK AT ALL NOW.
I'm passing to Django's template a function, which returns me some records
Why don't you pass to Django template the variable storing function's return value, instead of the function?
I've tried to set fuction's return value to a variable and iterate over variable, but there seems to be no way to set variable in Django template.
You should set variables in Django views instead of templates, and then pass them to the template.
You want Reflection
Type t = typeof(Car);
PropertyInfo prop = t.GetProperty("Make");
if(null != prop)
return prop.GetValue(this, null);
The network is always unpredictable. TCP makes a lot of this random behavior go away for you. One wonderful thing TCP does: it guarantees that the bytes will arrive in the same order. But! It does not guarantee that they will arrive chopped up in the same way. You simply cannot assume that every send() from one end of the connection will result in exactly one recv() on the far end with exactly the same number of bytes.
When you say socket.recv(x)
, you're saying 'don't return until you've read x bytes from the socket'. This is called "blocking I/O": you will block (wait) until your request has been filled. If every message in your protocol was exactly 1024 bytes, calling socket.recv(1024)
would work great. But it sounds like that's not true. If your messages are a fixed number of bytes, just pass that number in to socket.recv()
and you're done.
But what if your messages can be of different lengths? The first thing you need to do: stop calling socket.recv()
with an explicit number. Changing this:
data = self.request.recv(1024)
to this:
data = self.request.recv()
means recv()
will always return whenever it gets new data.
But now you have a new problem: how do you know when the sender has sent you a complete message? The answer is: you don't. You're going to have to make the length of the message an explicit part of your protocol. Here's the best way: prefix every message with a length, either as a fixed-size integer (converted to network byte order using socket.ntohs()
or socket.ntohl()
please!) or as a string followed by some delimiter (like '123:'). This second approach often less efficient, but it's easier in Python.
Once you've added that to your protocol, you need to change your code to handle recv()
returning arbitrary amounts of data at any time. Here's an example of how to do this. I tried writing it as pseudo-code, or with comments to tell you what to do, but it wasn't very clear. So I've written it explicitly using the length prefix as a string of digits terminated by a colon. Here you go:
length = None
buffer = ""
while True:
data += self.request.recv()
if not data:
break
buffer += data
while True:
if length is None:
if ':' not in buffer:
break
# remove the length bytes from the front of buffer
# leave any remaining bytes in the buffer!
length_str, ignored, buffer = buffer.partition(':')
length = int(length_str)
if len(buffer) < length:
break
# split off the full message from the remaining bytes
# leave any remaining bytes in the buffer!
message = buffer[:length]
buffer = buffer[length:]
length = None
# PROCESS MESSAGE HERE
Just make regular link look like button :)
<a href="#" role="button" class="btn btn-success btn-large">Click here!</a>
"role" inside a href code makes it look like button, ofc you can add more variables such as class.
You can just give your top child view (the TextView @+id/TextView) an attribute:
android:layout_weight="1"
.
This will force all other elements below it to the bottom.
If you see those characters you probably just didn’t specify the character encoding properly. Because those characters are the result when an UTF-8 multi-byte string is interpreted with a single-byte encoding like ISO 8859-1 or Windows-1252.
In this case ë
could be encoded with 0xC3 0xAB that represents the Unicode character ë
(U+00EB) in UTF-8.
itertools.product
Available from Python 2.6.
import itertools
somelists = [
[1, 2, 3],
['a', 'b'],
[4, 5]
]
for element in itertools.product(*somelists):
print(element)
Which is the same as,
for element in itertools.product([1, 2, 3], ['a', 'b'], [4, 5]):
print(element)
As of March 30, 2012, I have tried and failed to get the sloonz fork on GitHub to open images. I got it to compile ok, but it didn't actually work. I also tried building gohlke's library, and it compiled also but failed to open any images. Someone mentioned PythonMagick above, but it only compiles on Windows. See PythonMagick on the wxPython wiki.
PIL was last updated in 2009, and while it's website says they are working on a Python 3 port, it's been 3 years, and the mailing list has gone cold.
To solve my Python 3 image manipulation problem, I am using subprocess.call()
to execute ImageMagick shell commands. This method works.
DECLARE
the_variable NUMBER;
BEGIN
SELECT my_column INTO the_variable FROM my_table;
END;
Make sure that the query only returns a single row:
By default, a SELECT INTO statement must return only one row. Otherwise, PL/SQL raises the predefined exception TOO_MANY_ROWS and the values of the variables in the INTO clause are undefined. Make sure your WHERE clause is specific enough to only match one row
If no rows are returned, PL/SQL raises NO_DATA_FOUND. You can guard against this exception by selecting the result of an aggregate function, such as COUNT(*) or AVG(), where practical. These functions are guaranteed to return a single value, even if no rows match the condition.
A SELECT ... BULK COLLECT INTO statement can return multiple rows. You must set up collection variables to hold the results. You can declare associative arrays or nested tables that grow as needed to hold the entire result set.
The implicit cursor SQL and its attributes %NOTFOUND, %FOUND, %ROWCOUNT, and %ISOPEN provide information about the execution of a SELECT INTO statement.
The solutions above do not work on Linux.
Using .NET Core, attempting to execute new Uri("/home/foo/README.md")
results in an exception:
Unhandled Exception: System.UriFormatException: Invalid URI: The format of the URI could not be determined.
at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)
at System.Uri..ctor(String uriString)
...
You need to give the CLR some hints about what sort of URL you have.
This works:
Uri fileUri = new Uri(new Uri("file://"), "home/foo/README.md");
...and the string returned by fileUri.ToString()
is "file:///home/foo/README.md"
This works on Windows, too.
new Uri(new Uri("file://"), @"C:\Users\foo\README.md").ToString()
...emits "file:///C:/Users/foo/README.md"
You can use the below code to format it to two decimal places
NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
[formatter setNumberStyle:NSNumberFormatterDecimalStyle];
[formatter setMaximumFractionDigits:2];
[formatter setRoundingMode: NSNumberFormatterRoundUp];
NSString *numberString = [formatter stringFromNumber:[NSNumber numberWithFloat:22.368511]];
NSLog(@"Result...%@",numberString);//Result 22.37
Swift 4:
let formatter = NumberFormatter()
formatter.numberStyle = .decimal
formatter.maximumFractionDigits = 2
formatter.roundingMode = .up
let str = String(describing: formatter.string(from: 12.2345)!)
print(str)
JLS 7 3.10.5 defines it and gives a practical example:
Moreover, a string literal always refers to the same instance of class String. This is because string literals - or, more generally, strings that are the values of constant expressions (§15.28) - are "interned" so as to share unique instances, using the method String.intern.
Example 3.10.5-1. String Literals
The program consisting of the compilation unit (§7.3):
package testPackage; class Test { public static void main(String[] args) { String hello = "Hello", lo = "lo"; System.out.print((hello == "Hello") + " "); System.out.print((Other.hello == hello) + " "); System.out.print((other.Other.hello == hello) + " "); System.out.print((hello == ("Hel"+"lo")) + " "); System.out.print((hello == ("Hel"+lo)) + " "); System.out.println(hello == ("Hel"+lo).intern()); } } class Other { static String hello = "Hello"; }
and the compilation unit:
package other; public class Other { public static String hello = "Hello"; }
produces the output:
true true true true false true
JVMS 7 5.1 says says that interning is implemented magically and efficiently with a dedicated CONSTANT_String_info
struct (unlike most other objects which have more generic representations):
A string literal is a reference to an instance of class String, and is derived from a CONSTANT_String_info structure (§4.4.3) in the binary representation of a class or interface. The CONSTANT_String_info structure gives the sequence of Unicode code points constituting the string literal.
The Java programming language requires that identical string literals (that is, literals that contain the same sequence of code points) must refer to the same instance of class String (JLS §3.10.5). In addition, if the method String.intern is called on any string, the result is a reference to the same class instance that would be returned if that string appeared as a literal. Thus, the following expression must have the value true:
("a" + "b" + "c").intern() == "abc"
To derive a string literal, the Java Virtual Machine examines the sequence of code points given by the CONSTANT_String_info structure.
If the method String.intern has previously been called on an instance of class String containing a sequence of Unicode code points identical to that given by the CONSTANT_String_info structure, then the result of string literal derivation is a reference to that same instance of class String.
Otherwise, a new instance of class String is created containing the sequence of Unicode code points given by the CONSTANT_String_info structure; a reference to that class instance is the result of string literal derivation. Finally, the intern method of the new String instance is invoked.
Let's decompile some OpenJDK 7 bytecode to see interning in action.
If we decompile:
public class StringPool {
public static void main(String[] args) {
String a = "abc";
String b = "abc";
String c = new String("abc");
System.out.println(a);
System.out.println(b);
System.out.println(a == c);
}
}
we have on the constant pool:
#2 = String #32 // abc
[...]
#32 = Utf8 abc
and main
:
0: ldc #2 // String abc
2: astore_1
3: ldc #2 // String abc
5: astore_2
6: new #3 // class java/lang/String
9: dup
10: ldc #2 // String abc
12: invokespecial #4 // Method java/lang/String."<init>":(Ljava/lang/String;)V
15: astore_3
16: getstatic #5 // Field java/lang/System.out:Ljava/io/PrintStream;
19: aload_1
20: invokevirtual #6 // Method java/io/PrintStream.println:(Ljava/lang/String;)V
23: getstatic #5 // Field java/lang/System.out:Ljava/io/PrintStream;
26: aload_2
27: invokevirtual #6 // Method java/io/PrintStream.println:(Ljava/lang/String;)V
30: getstatic #5 // Field java/lang/System.out:Ljava/io/PrintStream;
33: aload_1
34: aload_3
35: if_acmpne 42
38: iconst_1
39: goto 43
42: iconst_0
43: invokevirtual #7 // Method java/io/PrintStream.println:(Z)V
Note how:
0
and 3
: the same ldc #2
constant is loaded (the literals)12
: a new string instance is created (with #2
as argument)35
: a
and c
are compared as regular objects with if_acmpne
The representation of constant strings is quite magic on the bytecode:
new String
)and the JVMS quote above seems to say that whenever the Utf8 pointed to is the same, then identical instances are loaded by ldc
.
I have done similar tests for fields, and:
static final String s = "abc"
points to the constant table through the ConstantValue Attributeldc
Conclusion: there is direct bytecode support for the string pool, and the memory representation is efficient.
Bonus: compare that to the Integer pool, which does not have direct bytecode support (i.e. no CONSTANT_String_info
analogue).
Your main
method has a String[]
argument. That contain the arguments that have been passed to your applications (it's often called args
, but that's not a requirement).
Objective - C
NSData *myStringData = [@"My String" dataUsingEncoding:NSUTF8StringEncoding];
NSString *myStringFromData = [[NSString alloc] initWithData:myStringData encoding:NSUTF8StringEncoding];
NSLog(@"My string value: %@",myStringFromData);
Swift
//This your data containing the string
let myStringData = "My String".dataUsingEncoding(NSUTF8StringEncoding)
//Use this method to convert the data into String
let myStringFromData = String(data:myStringData!, encoding: NSUTF8StringEncoding)
print("My string value:" + myStringFromData!)
http://objectivec2swift.blogspot.in/2016/03/coverting-nsdata-to-nsstring-or-convert.html
Try this:
if cookie and not cookie.isspace():
# the string is non-empty
else:
# the string is empty
The above takes in consideration the cases where the string is None
or a sequence of white spaces.
I had this problem and it was due to my windows machine playing up. I went into control panel -> system -> advanced - environment variables.
I edited the PATH variable (which was already correctly set up), changed NOTHING, clicked OK to come back out of the screens.
Then eclipse worked. No idea why, except because windows. Hopefully this may help someone.
Create
trigger `[dbo].[mytrigger]` on `[dbo].[Patients]` after update , insert as
begin
--Sql logic
print 'Hello world'
end
If you want something like : InputString => StringPart1...StringPart2
HTML:
<html ng-app="myApp">
<body>
{{ "AngularJS string limit example" | strLimit: 10 : 20 }}
</body>
</html>
Angular Code:
var myApp = angular.module('myApp', []);
myApp.filter('strLimit', ['$filter', function($filter) {
return function(input, beginlimit, endlimit) {
if (! input) return;
if (input.length <= beginlimit + endlimit) {
return input;
}
return $filter('limitTo')(input, beginlimit) + '...' + $filter('limitTo')(input, -endlimit) ;
};
}]);
Example with following parameters :
beginLimit = 10
endLimit = 20
Before:
- /home/house/room/etc/ava_B0363852D549079E3720DF6680E17036.jar
After:
- /home/hous...3720DF6680E17036.jar
You can examine the url through several Request
fields:
Imagine your application is listening on the following application root:
http://www.example.com/myapplication
And a user requests the following URI:
http://www.example.com/myapplication/foo/page.html?x=y
In this case the values of the above mentioned attributes would be the following:
path /foo/page.html full_path /foo/page.html?x=y script_root /myapplication base_url http://www.example.com/myapplication/foo/page.html url http://www.example.com/myapplication/foo/page.html?x=y url_root http://www.example.com/myapplication/
You can easily extract the host part with the appropriate splits.
See the most recent stash:
git stash show -p
See an arbitrary stash:
git stash show -p stash@{1}
From the git stash
manpages:
By default, the command shows the diffstat, but it will accept any format known to git diff (e.g., git stash show -p stash@{1} to view the second most recent stash in patch form).
Specify window "features" to the open
call:
window.open(url, windowName, "height=200,width=200");
When you specify a width/height, it will open it in a new window instead of a tab.
See https://developer.mozilla.org/en-US/docs/Web/API/Window.open#Position_and_size_features for all the possible features.
Here's yet another way to do it.
monthToNum(shortMonth):
return {
'jan' : 1,
'feb' : 2,
'mar' : 3,
'apr' : 4,
'may' : 5,
'jun' : 6,
'jul' : 7,
'aug' : 8,
'sep' : 9,
'oct' : 10,
'nov' : 11,
'dec' : 12
}[shortMonth]
there you go
$date = "04-15-2013";
$date1 = str_replace('-', '/', $date);
$tomorrow = date('m-d-Y',strtotime($date1 . "+1 days"));
echo $tomorrow;
this will output
04-16-2013
I did this in my local environment. Wasn't difficult but obviously it was done in "unsupported" way.
To do the downgrade you need just to download php 5.3 from http://php.net/releases/ (zip archive), than go to xampp folder and copy subfolder "php" to e.g. php5.5 (just for backup). Than remove content of the folder php and unzip content of zip archive downloaded from php.net. The next step is to adjust configuration (php.ini) - you can refer to your backed-up version from php 5.5. After that just run xampp control utility - everything should work (at least worked in my local environment). I didn't found any problem with such installation, although I didn't tested this too intensively.
cat | git log --author="authorName" > author_commits_details.txt
This gives your commits in text format.
Got the same problem, found the following bug report in SQL Server 2012 If still relevant see conditions that cause the issue - there are some workarounds there as well (didn't try though). Failover or Restart Results in Reseed of Identity
http://docs.jquery.com/UI/API/1.8/Dialog
Example for fixed dialog on the left top corner:
$("#dialogId").dialog({
autoOpen: false,
modal: false,
draggable: false,
height: "auto",
width: "auto",
resizable: false,
position: [0,28],
create: function (event) { $(event.target).parent().css('position', 'fixed');},
open: function() {
//$('#object').load...
}
});
$("#dialogOpener").click(function() {
$("#dialogId").dialog("open");
});
In case you are using the annotation method for filter definition (as opposed to defining them in the web.xml
), you can do so by just putting an array of mappings in the @WebFilter
annotation:
/**
* Filter implementation class LoginFilter
*/
@WebFilter(urlPatterns = { "/faces/Html/Employee","/faces/Html/Admin", "/faces/Html/Supervisor"})
public class LoginFilter implements Filter {
...
And just as an FYI, this same thing works for servlets using the servlet annotation too:
/**
* Servlet implementation class LoginServlet
*/
@WebServlet({"/faces/Html/Employee", "/faces/Html/Admin", "/faces/Html/Supervisor"})
public class LoginServlet extends HttpServlet {
...
You can use T-SQL:
use master
GO
CREATE LOGIN [NT AUTHORITY\LOCALSERVICE] FROM WINDOWS WITH
DEFAULT_DATABASE=yourDbName
GO
CREATE LOGIN [NT AUTHORITY\NETWORKSERVICE] FROM WINDOWS WITH
DEFAULT_DATABASE=yourDbName
I use this as a part of restore from production server to testing machine:
USE master
GO
ALTER DATABASE yourDbName SET OFFLINE WITH ROLLBACK IMMEDIATE
RESTORE DATABASE yourDbName FROM DISK = 'd:\DropBox\backup\myDB.bak'
ALTER DATABASE yourDbName SET ONLINE
GO
CREATE LOGIN [NT AUTHORITY\LOCALSERVICE] FROM WINDOWS WITH
DEFAULT_DATABASE=yourDbName
GO
CREATE LOGIN [NT AUTHORITY\NETWORKSERVICE] FROM WINDOWS WITH
DEFAULT_DATABASE=yourDbName
GO
You will need to use localized name of services in case of German or French Windows, see How to create a SQL Server login for a service account on a non-English Windows?
If the answer from falsetru didn't work you could also try:
>>> b'a string'.decode('utf-8')
'a string'
select *from table_name where boolean_column is False or Null;
Is interpreted as "( boolean_column is False ) or (null)".
It returns only rows where boolean_column
is False as the second condition is always false.
select *from table_name where boolean_column is Null or False;
Same reason. Interpreted as "(boolean_column is Null) or (False)"
select *from table_name where boolean_column is Null or boolean_column = False;
This one is valid and returns 2 rows: false
and null
.
I just created the table to confirm. You might have typoed somewhere.
If you want the output on terminal then,
$sed 's/ /,/g' filename.txt
But if you want to edit the file itself i.e. if you want to replace space with the comma in the file then,
$sed -i 's/ /,/g' filename.txt
Swift 4 - GET request
var request = URLRequest(url: URL(string: "http://example.com/api/v1/example")!)
request.httpMethod = "GET"
URLSession.shared.dataTask(with: request, completionHandler: { data, response, error -> Void in
do {
let jsonDecoder = JSONDecoder()
let responseModel = try jsonDecoder.decode(CustomDtoClass.self, from: data!)
print(responseModel)
} catch {
print("JSON Serialization error")
}
}).resume()
Don't forget to configure App Transport Security Settings to add your domain to the exceptions and allow insecure http requests if you're hitting endpoints without using HTTPS.
You can use a tool like http://www.json4swift.com/ to autogenerate your Codeable Mappings from your JSON responses.
the simpler, the better.
index.php
<?
if (empty($_SERVER['QUERY_STRING'])) {
$name="index";
} else {
$name=basename($_SERVER['QUERY_STRING']);
}
$file="txt/".$name.".htm";
if (is_readable($file)) {
include 'header.php';
readfile($file);
} else {
header("HTTP/1.0 404 Not Found");
exit;
}
?>
header.php
<a href="index.php">Main page</a><br>
<a href=?about>About</a><br>
<a href=?links>Links</a><br>
<br><br>
the actual static html pages stored in the txt
folder in the page
.htm format
You can just go with:
if(!$strings{$string}) ....
Basically you need following things to make location detector android app
Now if you write each of these module yourself then it needs much time and efforts. So it would be better to use ready resources that are being maintained already.
Using all these resources, you will be able to create an flawless android location detection app.
You will first need to listen for current location of user. You can use any of below libraries to quick start.
This library provide last known location, location updates
With this library you just need to provide a Configuration object with your requirements, and you will receive a location or a fail reason with all the stuff are described above handled.
Use this open source repo of the Hypertrack Live app to build live location sharing experience within your app within a few hours. HyperTrack Live app helps you share your Live Location with friends and family through your favorite messaging app when you are on the way to meet up. HyperTrack Live uses HyperTrack APIs and SDKs.
Google Maps Android API utility library
If you want to add route maps feature in your apps you can use DrawRouteMaps to make you work more easier. This is lib will help you to draw route maps between two point LatLng.
Simple, smooth animation for route / polylines on google maps using projections. (WIP)
This project allows you to calculate the direction between two locations and display the route on a Google Map using the Google Directions API.
I found this checkerboard pattern (as a subset of the zebra stripe) to be a pleasant way to display a two-column table. This is written using LESS CSS, and keys all colors off the base color.
@base-color: #0000ff;
@row-color: lighten(@base-color, 40%);
@other-row: darken(@row-color, 10%);
tbody {
td:nth-child(odd) { width: 45%; }
tr:nth-child(odd) > td:nth-child(odd) {
background: darken(@row-color, 0%); }
tr:nth-child(odd) > td:nth-child(even) {
background: darken(@row-color, 7%); }
tr:nth-child(even) > td:nth-child(odd) {
background: darken(@other-row, 0%); }
tr:nth-child(even) > td:nth-child(even) {
background: darken(@other-row, 7%); }
}
Note I've dropped the .table-striped
, but doesn't seem to matter.
Looks like:
You can use Timer instead of Thread. This is whole my code
package dk.tellwork.tellworklite.tabs;
import java.util.Timer;
import java.util.TimerTask;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import dk.tellwork.tellworklite.MainActivity;
import dk.tellwork.tellworklite.R;
@SuppressLint("HandlerLeak")
public class HomeActivity extends Activity {
Button chooseYourAcitivity, startBtn, stopBtn;
TextView labelTimer;
int passedSenconds;
Boolean isActivityRunning = false;
Timer timer;
TimerTask timerTask;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.tab_home);
chooseYourAcitivity = (Button) findViewById(R.id.btnChooseYourActivity);
chooseYourAcitivity.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//move to Activities tab
switchTabInActivity(1);
}
});
labelTimer = (TextView)findViewById(R.id.labelTime);
passedSenconds = 0;
startBtn = (Button)findViewById(R.id.startBtn);
startBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (isActivityRunning) {
//pause running activity
timer.cancel();
startBtn.setText(getString(R.string.homeStartBtn));
isActivityRunning = false;
} else {
reScheduleTimer();
startBtn.setText(getString(R.string.homePauseBtn));
isActivityRunning = true;
}
}
});
stopBtn = (Button)findViewById(R.id.stopBtn);
stopBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
timer.cancel();
passedSenconds = 0;
labelTimer.setText("00 : 00 : 00");
startBtn.setText(getString(R.string.homeStartBtn));
isActivityRunning = false;
}
});
}
public void reScheduleTimer(){
timer = new Timer();
timerTask = new myTimerTask();
timer.schedule(timerTask, 0, 1000);
}
private class myTimerTask extends TimerTask{
@Override
public void run() {
// TODO Auto-generated method stub
passedSenconds++;
updateLabel.sendEmptyMessage(0);
}
}
private Handler updateLabel = new Handler(){
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
//super.handleMessage(msg);
int seconds = passedSenconds % 60;
int minutes = (passedSenconds / 60) % 60;
int hours = (passedSenconds / 3600);
labelTimer.setText(String.format("%02d : %02d : %02d", hours, minutes, seconds));
}
};
public void switchTabInActivity(int indexTabToSwitchTo){
MainActivity parentActivity;
parentActivity = (MainActivity) this.getParent();
parentActivity.switchTab(indexTabToSwitchTo);
}
}
Here's a polyfill for the Number
predicate functions:
"use strict";
Number.isNaN = Number.isNaN ||
n => n !== n; // only NaN
Number.isNumeric = Number.isNumeric ||
n => n === +n; // all numbers excluding NaN
Number.isFinite = Number.isFinite ||
n => n === +n // all numbers excluding NaN
&& n >= Number.MIN_VALUE // and -Infinity
&& n <= Number.MAX_VALUE; // and +Infinity
Number.isInteger = Number.isInteger ||
n => n === +n // all numbers excluding NaN
&& n >= Number.MIN_VALUE // and -Infinity
&& n <= Number.MAX_VALUE // and +Infinity
&& !(n % 1); // and non-whole numbers
Number.isSafeInteger = Number.isSafeInteger ||
n => n === +n // all numbers excluding NaN
&& n >= Number.MIN_SAFE_INTEGER // and small unsafe numbers
&& n <= Number.MAX_SAFE_INTEGER // and big unsafe numbers
&& !(n % 1); // and non-whole numbers
All major browsers support these functions, except isNumeric
, which is not in the specification because I made it up. Hence, you can reduce the size of this polyfill:
"use strict";
Number.isNumeric = Number.isNumeric ||
n => n === +n; // all numbers excluding NaN
Alternatively, just inline the expression n === +n
manually.
Use Object.entries()
function.
Object.entries(object)
return:
[
[key, value],
[key, value],
...
]
see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries
{Object.entries(subjects).map(([key, subject], i) => (
<li className="travelcompany-input" key={i}>
<span className="input-label">key: {i} Name: {subject.name}</span>
</li>
))}
import java.io.*;
private void stringToFile( String text, String fileName )
{
try
{
File file = new File( fileName );
// if file doesnt exists, then create it
if ( ! file.exists( ) )
{
file.createNewFile( );
}
FileWriter fw = new FileWriter( file.getAbsoluteFile( ) );
BufferedWriter bw = new BufferedWriter( fw );
bw.write( text );
bw.close( );
//System.out.println("Done writing to " + fileName); //For testing
}
catch( IOException e )
{
System.out.println("Error: " + e);
e.printStackTrace( );
}
} //End method stringToFile
You can insert this method into your classes. If you are using this method in a class with a main method, change this class to static by adding the static key word. Either way you will need to import java.io.* to make it work otherwise File, FileWriter and BufferedWriter will not be recognized.
-L
returns true if the "file" exists and is a symbolic link (the linked file may or may not exist). You want -f
(returns true if file exists and is a regular file) or maybe just -e
(returns true if file exists regardless of type).
According to the GNU manpage, -h
is identical to -L
, but according to the BSD manpage, it should not be used:
-h file
True if file exists and is a symbolic link. This operator is retained for compatibility with previous versions of this program. Do not rely on its existence; use -L instead.
Yup! That's very straight forward and that's where the package strategy comes into play. there are three ways to my knowledge. folder structure:
GOPATH/src/ github.com/ abc/ myproject/ adapter/ main.go pkg1 pkg2 warning: adapter can contain package main only and sun directories
go build main.go
go build main.go
go build myproject/adapter
exe file will be created at the directory you are currently at.
My goal was to pass a query string similar to:
protodb?sql=select * from protodb.prototab
to a Node.js 12 Lambda function via a URL from the API gateway. I tried a number of the ideas from the other answers but really wanted to do something in the most API gateway UI native way possible, so I came up with this that worked for me (as of the UI for API Gateway as of December 2020):
On the API Gateway console for a given API, under resources, select the get method. Then select its Integration Request and fill out the data for the lambda function at the top of the page.
Scroll to the bottom and open up the mapping templates section. Choose Request Body Passthrough when there are no templates defined (recommended).
Click on Add mapping templates and create one with the content-type of application/json and hit the check mark button.
For that mapping template, choose the Method Request passthrough on the drop down list for generate template which will fill the textbox under it with AWS' general way to pass everything.
Hit the save button.
Now when I tested it, I could not get the parameter to come through as event.sql under node JS in the Lambda function. It turns out that when the API gateway sends the URL sql query parameter to the Lambda function, it comes through for Node.js as:
var insql = event.params.querystring.sql;
So the trick that took some time for me was to use JSON.stringify to show the full event stack and then work my way down through the sections to be able to pull out the sql parameter from the query string.
So basically you can use the default passthrough functionality in the API gateway with the trick being how the parameters are passed when you are in the Lambda function.
There is also a difference in indexing.
interface MyInterface {
foobar: string;
}
type MyType = {
foobar: string;
}
const exampleInterface: MyInterface = { foobar: 'hello world' };
const exampleType: MyType = { foobar: 'hello world' };
let record: Record<string, string> = {};
record = exampleType; // Compiles
record = exampleInterface; // Index signature is missing
So please consider this example, if you want to index your object
Take a look on this question
If you are trying to read a file, that will take up memory in PHP. For instance, if you are trying to open up and read an MP3 file ( like, say, $data = file("http://mydomain.com/path/sample.mp3" ) it is going to pull it all into memory.
As Nelson suggests, you can work to increase your maximum memory limit if you actually need to be using this much memory.
Use .help
to check for available commands.
.table
This command would show all tables under your current database.
I don't know if this helps:
suppose you want to run a sql script (test.sql) from the command line:
mysql < test.sql
and the contents of test.sql is something like:
SELECT * FROM information_schema.SCHEMATA;
\! echo "I like to party...";
The console will show something like:
CATALOG_NAME SCHEMA_NAME DEFAULT_CHARACTER_SET_NAME
def information_schema utf8
def mysql utf8
def performance_schema utf8
def sys utf8
I like to party...
So you can execute terminal commands inside an sql statement by just using \!
, provided the script is run via a command line.
\! #terminal_commands
Additional data (in case you have more questions):
FOO: {
for my $i ( @listone ){
for my $j ( @listtwo ){
if ( cond( $i,$j ) ){
last FOO; # --->
# |
} # |
} # |
} # |
} # <-------------------------------
If this is your own source code and you already have a Netbeans project folder with your source files you should just start with:
File | Open Project...
not
File | New Project ...
because the project is not new.
It would help you... assume you have a form with "formname" form and a text box with "txt" name. then you can use following code to allow only aphanumeric values
var checkString = document.formname.txt.value;
if (checkString != "") {
if ( /[^A-Za-z\d]/.test(checkString)) {
alert("Please enter only letter and numeric characters");
document.formname.txt.focus();
return (false);
}
}
I tried @ScottK's approach, first as a side feature of my functional UDF, then as a standalone _Help suffix version when I ran into trouble (see below). In hindsight, the latter approach is better anyway--more obvious to a user attentive enough to see a tool tip, and it doesn't clutter up the functional code.
I figured if an inattentive user just typed the function name and closed the parentheses while he thought it over, help would appear and he would be on his way. But dumping a bunch of text into a single cell that I cannot format didn't seem like a good idea. Instead, When the function is entered in a cell with no arguments i.e.
= interpolateLinear()
or
= interpolateLinear_Help()
a msgBox opens with the help text. A msgBox is limited to ~1000 characters, maybe it's 1024. But that's enough (barely 8^/) for my overly tricked out interpolation function. If it's not, you can always open a user form and go to town.
The first time the message box opened, it looked like success. But there are a couple of problems. First of course, the user has to know to enter the function with no arguments (+1 for the _Help suffix UDF).
The big problem is, the msgBox reopens several times in succession, spontaneously while working in unrelated parts of the workbook. Needless to say, it's very annoying. Sometimes it goes on until I get a circular reference warning. Go figure. If a UDF could change the cell formula, I would have done that to shut it up.
I don't know why Excel feels the need recalculate the formula over and over; neither the _Help standalone, nor the full up version (in help mode) has precedents or dependents. There's not an application.volatile statement anywhere. Of course the function returns a value to the calling cell. Maybe that triggers the recalc? But that's what UDFs do. I don't think you can not return a value.
Since you can't modify a worksheet formula from a UDF, I tried to return a specific string --a value --to the calling cell (the only one you can change the value of from a UDF), figuring I would inspect the cell value using application.caller on the next cycle, spot my string, and know not to re-display the help message. Seemed like a good idea at the time--didn't work. Maybe I did something stupid in my sleep-deprived state. I still like the idea. I'll update this when (if) I fix the problem. My quick fix was to add a line on the help box: "Seek help only in an emergency. Delete the offending formula to end the misery.
In the meantime, I tried the Application.MacroOptions approach. Pretty easy, and it looks professional. Just one problem to work out. I'll post a separate answer on that approach later.
pypsrp - Python PowerShell Remoting Protocol Client library
At a basic level, you can use this library to;
Execute a cmd command
Run another executable
Execute PowerShell scripts
Copy a file from the localhost to the remote Windows host
Fetch a file from the remote Windows host to the localhost
Create a Runspace Pool that contains one or multiple PowerShell pipelines and execute them asynchronously
Support for a reference host base implementation of PSRP for interactive scripts
Using display: fixed
on the thead
section should work, but for it only work on the current table in view, you will need the help of JavaScript. And it will be tricky because it will need to figure out scrolling places and location of elements relative to the viewport, which is one of the prime areas of browser incompatibility.
Have a look at the popular JavaScript frameworks (jQuery, MooTools, YUI, etc etc.) to see if they can either do what you want or make it easier to do what you want.
Starting with MongoDB 3.4, the recommended way to perform fast case-insensitive searches is to use a Case Insensitive Index.
I personally emailed one of the founders to please get this working, and he made it happen! It was an issue on JIRA since 2009, and many have requested the feature. Here's how it works:
A case-insensitive index is made by specifying a collation with a strength of either 1 or 2. You can create a case-insensitive index like this:
db.cities.createIndex(
{ city: 1 },
{
collation: {
locale: 'en',
strength: 2
}
}
);
You can also specify a default collation per collection when you create them:
db.createCollection('cities', { collation: { locale: 'en', strength: 2 } } );
In either case, in order to use the case-insensitive index, you need to specify the same collation in the find
operation that was used when creating the index or the collection:
db.cities.find(
{ city: 'new york' }
).collation(
{ locale: 'en', strength: 2 }
);
This will return "New York", "new york", "New york" etc.
The answers suggesting to use full-text search are wrong in this case (and potentially dangerous). The question was about making a case-insensitive query, e.g. username: 'bill'
matching BILL
or Bill
, not a full-text search query, which would also match stemmed words of bill
, such as Bills
, billed
etc.
The answers suggesting to use regular expressions are slow, because even with indexes, the documentation states:
"Case insensitive regular expression queries generally cannot use indexes effectively. The $regex implementation is not collation-aware and is unable to utilize case-insensitive indexes."
$regex
answers also run the risk of user input injection.
"NgModel doesn't work with new forms api".
That's not true. You just need to use it correctly. If you are using the reactive forms, the NgModel should be used in concert with the reactive directive. See the example in the source.
/*
* @Component({
* selector: "login-comp",
* directives: [REACTIVE_FORM_DIRECTIVES],
* template: `
* <form [formGroup]="myForm" (submit)='onLogIn()'>
* Login <input type='text' formControlName='login' [(ngModel)]="credentials.login">
* Password <input type='password' formControlName='password'
* [(ngModel)]="credentials.password">
* <button type='submit'>Log in!</button>
* </form>
* `})
* class LoginComp {
* credentials: {login:string, password:string};
* myForm = new FormGroup({
* login: new Control(this.credentials.login),
* password: new Control(this.credentials.password)
* });
*
* onLogIn(): void {
* // this.credentials.login === "some login"
* // this.credentials.password === "some password"
* }
* }
*/
Though it looks like from the TODO comments, this will likely be removed and replaced with a reactive API.
// TODO(kara): Replace ngModel with reactive API
@Input('ngModel') model: any;
Eric Lippert recently had a very in-depth series of blog posts about this: "Every Binary Tree There Is" and "Every Tree There Is" (plus some more after that).
In answer to your specific question, he says:
The number of binary trees with n nodes is given by the Catalan numbers, which have many interesting properties. The nth Catalan number is determined by the formula (2n)! / (n+1)!n!, which grows exponentially.
i uses Js function replace simply.
<Text>{item.excerpt.rendered.replace(/<\/?[^>]+(>|$)/g, "")}</Text>
Here is an example which gets big numbers very quickly.
import java.math.BigInteger;
/*
250000th fib # is: 36356117010939561826426 .... 10243516470957309231046875
Time to compute: 3.5 seconds.
1000000th fib # is: 1953282128707757731632 .... 93411568996526838242546875
Time to compute: 58.1 seconds.
*/
public class Main {
public static void main(String... args) {
int place = args.length > 0 ? Integer.parseInt(args[0]) : 250 * 1000;
long start = System.nanoTime();
BigInteger fibNumber = fib(place);
long time = System.nanoTime() - start;
System.out.println(place + "th fib # is: " + fibNumber);
System.out.printf("Time to compute: %5.1f seconds.%n", time / 1.0e9);
}
private static BigInteger fib(int place) {
BigInteger a = new BigInteger("0");
BigInteger b = new BigInteger("1");
while (place-- > 1) {
BigInteger t = b;
b = a.add(b);
a = t;
}
return b;
}
}
never use getApplicationContext()
. Just use your Activity as the Context. See if that helps.
Please check here: CommonsWare answers
The easiest way that I found for adding a column to a DataFrame was to use the "add" function. Here's a snippet of code, also with the output to a CSV file. Note that including the "columns" argument allows you to set the name of the column (which happens to be the same as the name of the np.array that I used as the source of the data).
# now to create a PANDAS data frame
df = pd.DataFrame(data = FF_maxRSSBasal, columns=['FF_maxRSSBasal'])
# from here on, we use the trick of creating a new dataframe and then "add"ing it
df2 = pd.DataFrame(data = FF_maxRSSPrism, columns=['FF_maxRSSPrism'])
df = df.add( df2, fill_value=0 )
df2 = pd.DataFrame(data = FF_maxRSSPyramidal, columns=['FF_maxRSSPyramidal'])
df = df.add( df2, fill_value=0 )
df2 = pd.DataFrame(data = deltaFF_strainE22, columns=['deltaFF_strainE22'])
df = df.add( df2, fill_value=0 )
df2 = pd.DataFrame(data = scaled, columns=['scaled'])
df = df.add( df2, fill_value=0 )
df2 = pd.DataFrame(data = deltaFF_orientation, columns=['deltaFF_orientation'])
df = df.add( df2, fill_value=0 )
#print(df)
df.to_csv('FF_data_frame.csv')
EDIT: This is now part of MoreLINQ.
What you need is a "distinct-by" effectively. I don't believe it's part of LINQ as it stands, although it's fairly easy to write:
public static IEnumerable<TSource> DistinctBy<TSource, TKey>
(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector)
{
HashSet<TKey> seenKeys = new HashSet<TKey>();
foreach (TSource element in source)
{
if (seenKeys.Add(keySelector(element)))
{
yield return element;
}
}
}
So to find the distinct values using just the Id
property, you could use:
var query = people.DistinctBy(p => p.Id);
And to use multiple properties, you can use anonymous types, which implement equality appropriately:
var query = people.DistinctBy(p => new { p.Id, p.Name });
Untested, but it should work (and it now at least compiles).
It assumes the default comparer for the keys though - if you want to pass in an equality comparer, just pass it on to the HashSet
constructor.
I know this question was asked over 2 years ago but no one has mentioned this yet.
The best method is to use a http header
Adding the meta tag to the head doesn't always work because IE might have determined the mode before it's read. The best way to make sure IE always uses standards mode is to use a custom http header.
Header:
name: X-UA-Compatible
value: IE=edge
For example in a .NET application you could put this in the web.config file.
<system.webServer>
<httpProtocol>
<customHeaders>
<add name="X-UA-Compatible" value="IE=edge" />
</customHeaders>
</httpProtocol>
</system.webServer>
It is good programming practice to return an empty array []
if the expected return type is an array. This makes sure that the receiver of the json can treat the value as an array immediately without having to first check for null. It's the same way with empty objects using open-closed braces {}
.
Strings, Booleans and integers do not have an 'empty' form, so there it is okay to use null values.
This is also addressed in Joshua Blochs excellent book "Effective Java". There he describes some very good generic programming practices (often applicable to other programming langages as well). Returning empty collections instead of nulls is one of them.
Here's a link to that part of his book:
http://jtechies.blogspot.nl/2012/07/item-43-return-empty-arrays-or.html
No, you can not.
You can call a function
from a stored procedure
and debug a stored procedure
(this will step into the function
)
var _login = function (loginData) {_x000D_
_x000D_
var data = "grant_type=password&username=" + loginData.userName + "&password=" + loginData.password;_x000D_
_x000D_
var deferred = $q.defer();_x000D_
_x000D_
$http.post(serviceBase + 'token', data, { headers: { 'Content-Type': 'application/x-www-form-urlencoded' } }).success(function (response) {_x000D_
_x000D_
localStorageService.set('authorizationData', { token: response.access_token, userName: loginData.userName });_x000D_
_x000D_
_authentication.isAuth = true;_x000D_
_authentication.userName = loginData.userName;_x000D_
_x000D_
deferred.resolve(response);_x000D_
_x000D_
}).error(function (err, status) {_x000D_
_logOut();_x000D_
deferred.reject(err);_x000D_
});_x000D_
_x000D_
return deferred.promise;_x000D_
_x000D_
};_x000D_
_x000D_
Since Java 1.7 you can use Files.createFile:
Path pathToFile = Paths.get("/home/joe/foo/bar/myFile.txt");
Files.createDirectories(pathToFile.getParent());
Files.createFile(pathToFile);
Table exists or not in database in swift
func tableExists(_ tableName:String) -> Bool {
sqlStatement = "SELECT name FROM sqlite_master WHERE type='table' AND name='\(tableName)'"
if sqlite3_prepare_v2(database, sqlStatement,-1, &compiledStatement, nil) == SQLITE_OK {
if sqlite3_step(compiledStatement) == SQLITE_ROW {
return true
}
else {
return false
}
}
else {
return false
}
sqlite3_finalize(compiledStatement)
}
I agree with Quentin. It doesn't make sense as to why you want to do it like that. It's part of the Semantic Web concept. You have to plan out the objects of your web site for future integration/expansion. Another web app or web site cannot interact with your content if it doesn't follow the proper use-case.
IE and Firefox are two different beasts. There are a lot of things that IE allows that Firefox and other standards-aware browsers reject.
If you're trying to create buttons without actually submitting data then use a combination of DIV/CSS.
Please do not reinvent the wheel. There are many open-source & COTS solutions that already exist to solve this problem.
Please take a look at the following JavaScript libraries:
I wrote a one-liner using Moment.js below. You can check out the demo here: JSFiddle.
moment('2014-08-20 15:30:00').format('MM/DD/YYYY h:mm a'); // 08/20/2014 3:30 pm
use css property word-wrap: break-word;
see example here: http://jsfiddle.net/emgRF/
import net.sf.json.JSONObject
JSONObject.fromObject(yourJsonString).toMap
Use -a
(for and) and -o
(for or) operations.
tldp.org/LDP/Bash-Beginners-Guide/html/sect_07_01.html
Update
Actually you could still use &&
and ||
with the -eq
operation. So your script would be like this:
my_error_flag=1
my_error_flag_o=1
if [ $my_error_flag -eq 1 ] || [ $my_error_flag_o -eq 2 ] || ([ $my_error_flag -eq 1 ] && [ $my_error_flag_o -eq 2 ]); then
echo "$my_error_flag"
else
echo "no flag"
fi
Although in your case you can discard the last two expressions and just stick with one or operation like this:
my_error_flag=1
my_error_flag_o=1
if [ $my_error_flag -eq 1 ] || [ $my_error_flag_o -eq 2 ]; then
echo "$my_error_flag"
else
echo "no flag"
fi
In the AndroidManifest.xml, under the application tag, you can set the theme of your choice. To customize the theme, press Ctrl + Click
on android:theme = "@style/AppTheme"
in the Android manifest file. It will open styles.xml
file where you can change the parent attribute of the style tag.
At parent=
in styles.xml
you can browse all available styles by using auto-complete inside the ""
. E.g. try parent="Theme."
with your cursor right after the .
and then pressing Ctrl + Space
.
You can also preview themes in the preview window in Android Studio.
We can increase maximum upload file size for WordPress media uploads in 3 different ways.
That's are
For .htaccess way, add following code,
php_value upload_max_filesize 1024M
php_value post_max_size 1024M
php_value max_execution_time 1000
php_value max_input_time 1000
for PHP.INI file method, add following code,
upload_max_filesize = 1024M
post_max_size = 1024M
max_execution_time = 1000
for Theme’s Functions.php File, add following code,
@ini_set( ‘upload_max_size’ , ’1024M’ );
@ini_set( ‘post_max_size’, ’1024M’);
@ini_set( ‘max_execution_time’, ’1000' );
You'll need to cast it:
export type Fruit = "Orange" | "Apple" | "Banana";
let myString: string = "Banana";
let myFruit: Fruit = myString as Fruit;
Also notice that when using string literals you need to use only one |
As mentioned in the other answer by @Simon_Weaver, it's now possible to assert it to const
:
let fruit = "Banana" as const;
You can use the whois service. On a UNIX like operating system you would execute the following command. Alternatively you can do it on the web at http://www.internic.net/whois.html.
whois stackoverflow.com
You would get the following response.
...text removed here...
Domain servers in listed order: NS51.DOMAINCONTROL.COM NS52.DOMAINCONTROL.COM
You can use nslookup or dig to find out more information about records for a given domain. This might help you resolve the conflicts you have described.
Hive tables are stored in the Hive warehouse directory. By default, MapR configures the Hive warehouse directory to be /user/hive/warehouse under the root volume. This default is defined in the $HIVE_HOME/conf/hive-default.xml.
$_
last argument of last command$#
number of arguments passed to current script$*
/ $@
list of arguments passed to script as string / delimited listoff the top of my head. Google for bash special variables.
This is an example that will work on most browsers.
Basically you use two background colors, the first one starting from 0% and ending at 50% and the second one starting from 51% and ending at 100%
I'm using horizontal orientation:
background: #000000;
background: -moz-linear-gradient(left, #000000 0%, #000000 50%, #ffffff 51%, #ffffff 100%);
background: -webkit-gradient(linear, left top, right top, color-stop(0%,#000000), color-stop(50%,#000000), color-stop(51%,#ffffff), color-stop(100%,#ffffff));
background: -webkit-linear-gradient(left, #000000 0%,#000000 50%,#ffffff 51%,#ffffff 100%);
background: -o-linear-gradient(left, #000000 0%,#000000 50%,#ffffff 51%,#ffffff 100%);
background: -ms-linear-gradient(left, #000000 0%,#000000 50%,#ffffff 51%,#ffffff 100%);
background: linear-gradient(to right, #000000 0%,#000000 50%,#ffffff 51%,#ffffff 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#000000', endColorstr='#ffffff',GradientType=1 );
For different adjustments you could use http://www.colorzilla.com/gradient-editor/
During migration from Ubuntu 12.04 to 14.04 I stumbled over this as well and wanted to share that as of Ubuntu 14.04 LTS the IMAP extension seems no longer to be loaded per default.
Check to verify if the extension is installed:
dpkg -l | grep php5-imap
should give a response like this:
ii php5-imap 5.4.6-0ubuntu5 amd64 IMAP module for php5
if not, install it.
To actually enable the extension
cd /etc/php5/apache2/conf.d
ln -s ../../mods-available/imap.ini 20-imap.ini
service apache2 restart
should fix it for apache. For CLI do the same in /etc/php5/cli/conf.d
Kibana is also a good solution. It is a data visualization platform for Elastic.If installed it runs by default on port 5601.
Out of the many things it provides. It has "Dev Tools" where we can do your debugging.
For example you can check your available indexes here using the command
GET /_cat/indices
func atributedLabel(str: String, img: UIImage)->NSMutableAttributedString
{ let iconsSize = CGRect(x: 0, y: -2, width: 16, height: 16)
let attributedString = NSMutableAttributedString()
let attachment = NSTextAttachment()
attachment.image = img
attachment.bounds = iconsSize
attributedString.append(NSAttributedString(attachment: attachment))
attributedString.append(NSAttributedString(string: str))
return attributedString
}
You can use this function to add images or small icons to the label
Levi Botelho commented that the table of encodings that was previously generated is no longer accurate for .NET 4.5, since the encodings changed slightly between .NET 4.0 and 4.5. So I've regenerated the table for .NET 4.5:
Unencoded UrlEncoded UrlEncodedUnicode UrlPathEncoded WebUtilityUrlEncoded EscapedDataString EscapedUriString HtmlEncoded HtmlAttributeEncoded WebUtilityHtmlEncoded HexEscaped
A A A A A A A A A A %41
B B B B B B B B B B %42
a a a a a a a a a a %61
b b b b b b b b b b %62
0 0 0 0 0 0 0 0 0 0 %30
1 1 1 1 1 1 1 1 1 1 %31
[space] + + %20 + %20 %20 [space] [space] [space] %20
! ! ! ! ! %21 ! ! ! ! %21
" %22 %22 " %22 %22 %22 " " " %22
# %23 %23 # %23 %23 # # # # %23
$ %24 %24 $ %24 %24 $ $ $ $ %24
% %25 %25 % %25 %25 %25 % % % %25
& %26 %26 & %26 %26 & & & & %26
' %27 %27 ' %27 %27 ' ' ' ' %27
( ( ( ( ( %28 ( ( ( ( %28
) ) ) ) ) %29 ) ) ) ) %29
* * * * * %2A * * * * %2A
+ %2b %2b + %2B %2B + + + + %2B
, %2c %2c , %2C %2C , , , , %2C
- - - - - - - - - - %2D
. . . . . . . . . . %2E
/ %2f %2f / %2F %2F / / / / %2F
: %3a %3a : %3A %3A : : : : %3A
; %3b %3b ; %3B %3B ; ; ; ; %3B
< %3c %3c < %3C %3C %3C < < < %3C
= %3d %3d = %3D %3D = = = = %3D
> %3e %3e > %3E %3E %3E > > > %3E
? %3f %3f ? %3F %3F ? ? ? ? %3F
@ %40 %40 @ %40 %40 @ @ @ @ %40
[ %5b %5b [ %5B %5B [ [ [ [ %5B
\ %5c %5c \ %5C %5C %5C \ \ \ %5C
] %5d %5d ] %5D %5D ] ] ] ] %5D
^ %5e %5e ^ %5E %5E %5E ^ ^ ^ %5E
_ _ _ _ _ _ _ _ _ _ %5F
` %60 %60 ` %60 %60 %60 ` ` ` %60
{ %7b %7b { %7B %7B %7B { { { %7B
| %7c %7c | %7C %7C %7C | | | %7C
} %7d %7d } %7D %7D %7D } } } %7D
~ %7e %7e ~ %7E ~ ~ ~ ~ ~ %7E
A %c4%80 %u0100 %c4%80 %C4%80 %C4%80 %C4%80 A A A [OoR]
a %c4%81 %u0101 %c4%81 %C4%81 %C4%81 %C4%81 a a a [OoR]
E %c4%92 %u0112 %c4%92 %C4%92 %C4%92 %C4%92 E E E [OoR]
e %c4%93 %u0113 %c4%93 %C4%93 %C4%93 %C4%93 e e e [OoR]
I %c4%aa %u012a %c4%aa %C4%AA %C4%AA %C4%AA I I I [OoR]
i %c4%ab %u012b %c4%ab %C4%AB %C4%AB %C4%AB i i i [OoR]
O %c5%8c %u014c %c5%8c %C5%8C %C5%8C %C5%8C O O O [OoR]
o %c5%8d %u014d %c5%8d %C5%8D %C5%8D %C5%8D o o o [OoR]
U %c5%aa %u016a %c5%aa %C5%AA %C5%AA %C5%AA U U U [OoR]
u %c5%ab %u016b %c5%ab %C5%AB %C5%AB %C5%AB u u u [OoR]
The columns represent encodings as follows:
HttpUtility.UrlEncode
HttpUtility.UrlEncodeUnicode
HttpUtility.UrlPathEncode
WebUtility.UrlEncode
Uri.EscapeDataString
Uri.EscapeUriString
HttpUtility.HtmlEncode
HttpUtility.HtmlAttributeEncode
WebUtility.HtmlEncode
Uri.HexEscape
NOTES:
HexEscape can only handle the first 255 characters. Therefore it throws an ArgumentOutOfRange exception for the Latin A-Extended characters (eg A).
This table was generated in .NET 4.5 (see answer https://stackoverflow.com/a/11236038/216440 for the encodings relevant to .NET 4.0 and below).
EDIT:
Android 3.6.2.
Build >> Build/Bundle apk >> Build apk
Looks like you missed this part,
notification.contentIntent = pendingIntent;
Try adding this and it should work.
document.querySelectorAll()
has several inconsistencies across browsers and is not supported in older browsersThis probably won't cause any trouble anymore nowadays. It has a very unintuitive scoping mechanism and some other not so nice features. Also with javascript you have a harder time working with the result sets of these queries, which in many cases you might want to do. jQuery provides functions to work on them like: filter()
, find()
, children()
, parent()
, map()
, not()
and several more. Not to mention the jQuery ability to work with pseudo-class selectors.
However, I would not consider these things as jQuery's strongest features but other things like "working" on the dom (events, styling, animation & manipulation) in a crossbrowser compatible way or the ajax interface.
If you only want the selector engine from jQuery you can use the one jQuery itself is using: Sizzle That way you have the power of jQuerys Selector engine without the nasty overhead.
EDIT: Just for the record, I'm a huge vanilla JavaScript fan. Nonetheless it's a fact that you sometimes need 10 lines of JavaScript where you would write 1 line jQuery.
Of course you have to be disciplined to not write jQuery like this:
$('ul.first').find('.foo').css('background-color', 'red').end().find('.bar').css('background-color', 'green').end();
This is extremely hard to read, while the latter is pretty clear:
$('ul.first')
.find('.foo')
.css('background-color', 'red')
.end()
.find('.bar')
.css('background-color', 'green')
.end();
The equivalent JavaScript would be far more complex illustrated by the pseudocode above:
1) Find the element, consider taking all element or only the first.
// $('ul.first')
// taking querySelectorAll has to be considered
var e = document.querySelector("ul.first");
2) Iterate over the array of child nodes via some (possibly nested or recursive) loops and check the class (classlist not available in all browsers!)
//.find('.foo')
for (var i = 0;i<e.length;i++){
// older browser don't have element.classList -> even more complex
e[i].children.classList.contains('foo');
// do some more magic stuff here
}
3) apply the css style
// .css('background-color', 'green')
// note different notation
element.style.backgroundColor = "green" // or
element.style["background-color"] = "green"
This code would be at least two times as much lines of code you write with jQuery. Also you would have to consider cross-browser issues which will compromise the severe speed advantage (besides from the reliability) of the native code.
Try Glogg. the fast, smart log explorer.
I have opened log file of size around 2 GB, and the search is also very fast.
Using file:///// just doesn't work if security settings are set to even a moderate level.
If you just want users to be able to download/view files* located on a network or share you can set up a Virtual Directory in IIS. On the Properties tab make sure the "A share located on another computer" is selected and the "Connect as..." is an account that can see the network location.
Link to the virtual directory from your webpage (e.g. http://yoursite/yourvirtualdir/) and this will open up a view of the directory in the web browser.
*You can allow write permissions on the virtual directory to allow users to add files but not tried it and assume network permissions would override this setting.
Adding one more scalable solution.
lists = [lst1, lst2, lst3, lst4]
df = pd.concat([pd.Series(x) for x in lists], axis=1)
Although @zeller said it already here is an example how to use tasklist
. As I was just looking for vanilla python alternatives...
import subprocess
def process_exists(process_name):
call = 'TASKLIST', '/FI', 'imagename eq %s' % process_name
# use buildin check_output right away
output = subprocess.check_output(call).decode()
# check in last line for process name
last_line = output.strip().split('\r\n')[-1]
# because Fail message could be translated
return last_line.lower().startswith(process_name.lower())
and now you can do:
>>> process_exists('eclipse.exe')
True
>>> process_exists('AJKGVSJGSCSeclipse.exe')
False
To avoid calling this multiple times and have an overview of all the processes this way you could do something like:
# get info dict about all running processes
import subprocess
output = subprocess.check_output(('TASKLIST', '/FO', 'CSV')).decode()
# get rid of extra " and split into lines
output = output.replace('"', '').split('\r\n')
keys = output[0].split(',')
proc_list = [i.split(',') for i in output[1:] if i]
# make dict with proc names as keys and dicts with the extra nfo as values
proc_dict = dict((i[0], dict(zip(keys[1:], i[1:]))) for i in proc_list)
for name, values in sorted(proc_dict.items(), key=lambda x: x[0].lower()):
print('%s: %s' % (name, values))
I do not know why, but the image should not be duplicated, tripled, etc ... should remove the previous one and load it again but with another rotation data. This is my code:
data.csv enter image description here
d3.csv("data/data.csv").then(function(data){
//console.log(data);
// Clean data
formattedData = data.map(function(id){
id.rot_1 = +id.rot_1;
id.trans_1 = +id.trans_1;
return id;
});
// First run of the visualization
update(formattedData[0]);})
$("#play-button")
.on("click", function(){
var button = $(this);
if (button.text() == "Play"){
button.text("Pause");
interval = setInterval(step, 1000);
}
else {
button.text("Play");
clearInterval(interval);
}})
function step(){
// At the end of our data, loop back
time = (time < 76) ? time+1 : 0
update(formattedData[time]); }
function update(data) {
// Standard transition time for the visualization
var t = d3.transition()
.duration(1000);
//console.log(d3.selectAll(data));
//console.log(data)
// original
var imgs1 = g.append("image") // en vez de g es svg
.attr("xlink:href", "img/picturetest.png");
// EXIT old elements not present in new data.
imgs1.exit()
.attr("class", "exit")
.selectAll("svg:image")
.remove();
//console.log(data)
// ENTER new elements present in new data.
imgs1.enter()
.append("svg:image") // svg:image
//.attr("xlink:href", "img/picturetest.png")
.attr("class", "enter")
.merge(imgs1)
.transition(t)
.attr("x", 0) // 150
.attr("y", 0) // 80
.attr("width", 200)
.attr("height", 200)
.attr("transform", "rotate("+data.rot_1+") translate("+data.trans_1+")" ); }`
I used a quick work around so I could keep the DropDownList style.
class DummyComboBoxItem
{
public string DisplayName
{
get
{
return "Make a selection ...";
}
}
}
public partial class mainForm : Form
{
private DummyComboBoxItem placeholder = new DummyComboBoxItem();
public mainForm()
{
InitializeComponent();
myComboBox.DisplayMember = "DisplayName";
myComboBox.Items.Add(placeholder);
foreach(object o in Objects)
{
myComboBox.Items.Add(o);
}
myComboBox.SelectedItem = placeholder;
}
private void myComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
if (myComboBox.SelectedItem == null) return;
if (myComboBox.SelectedItem == placeholder) return;
/*
do your stuff
*/
myComboBox.Items.Add(placeholder);
myComboBox.SelectedItem = placeholder;
}
private void myComboBox_DropDown(object sender, EventArgs e)
{
myComboBox.Items.Remove(placeholder);
}
private void myComboBox_Leave(object sender, EventArgs e)
{
//this covers user aborting the selection (by clicking away or choosing the system null drop down option)
//The control may not immedietly change, but if the user clicks anywhere else it will reset
if(myComboBox.SelectedItem != placeholder)
{
if(!myComboBox.Items.Contains(placeholder)) myComboBox.Items.Add(placeholder);
myComboBox.SelectedItem = placeholder;
}
}
}
If you use databinding you'll have to create a dummy version of the type you're bound to - just make sure you remove it before any persistence logic.
Both these will give you the first child node:
console.log(parentElement.firstChild); // or
console.log(parentElement.childNodes[0]);
If you need the first child that is an element node then use:
console.log(parentElement.children[0]);
Edit
Ah, I see your problem now; parentElement
is an array.
If you know that getElementsByClassName will only return one result, which it seems you do, you should use [0]
to dearray (yes, I made that word up) the element:
var parentElement = document.getElementsByClassName("uniqueClassName")[0];
This somewhat depends on what platform you are on. The most common way to do this is by printing ANSI escape sequences. For a simple example, here's some python code from the blender build scripts:
// This is a object for use ANSI escape to color the text in the terminal
const bColors = {
HEADER : '\033[95m',
OKBLUE : '\033[94m',
OKGREEN : '\033[92m',
WARNING : '\033[93m',
FAIL : '\033[91m',
ENDC : '\033[0m',
BOLD : '\033[1m',
UNDERLINE : '\033[4m'
}
To use code like this, you can do something like
console.log(`${bColors.WARNING} My name is sami ${bColors.ENDC}`)
Function was written to handle seeding of randomized set creation. You should not rely on set splitting that doesn't randomize the sets.
import numpy as np
import pandas as pd
def train_validate_test_split(df, train_percent=.6, validate_percent=.2, seed=None):
np.random.seed(seed)
perm = np.random.permutation(df.index)
m = len(df.index)
train_end = int(train_percent * m)
validate_end = int(validate_percent * m) + train_end
train = df.iloc[perm[:train_end]]
validate = df.iloc[perm[train_end:validate_end]]
test = df.iloc[perm[validate_end:]]
return train, validate, test
np.random.seed([3,1415])
df = pd.DataFrame(np.random.rand(10, 5), columns=list('ABCDE'))
df
train, validate, test = train_validate_test_split(df)
train
validate
test
Maybe this can help
string input = "hello123world";
bool isDigitPresent = input.Any(c => char.IsDigit(c));
answer from msdn.
I assume you're using GCC. The standard solution would be to profile with gprof.
Be sure to add -pg
to compilation before profiling:
cc -o myprog myprog.c utils.c -g -pg
I haven't tried it yet but I've heard good things about google-perftools. It is definitely worth a try.
Related question here.
A few other buzzwords if gprof
does not do the job for you: Valgrind, Intel VTune, Sun DTrace.
Short answer:
install Remote Server Administration tools on your SQL Server (it's an optional feature of Windows Server), reboot, then run SQL Server configuration manager, access the service settings for each of the services whose logon account starts with "NT Service...", clear out the password fields and restart the service. Under the covers, SQL Server Config manager will assign these virtual accounts the Log On as a Service right, and you'll be on your way.
tl;dr;
There is a catch-22 between default settings for a windows domain and default install of SQL Server 2012.
As mentioned above, default Windows domain setup will indeed prevent you from defining the "log on as a service" right via Group Policy Edit at the local machine (via GUI at least; if you install Powershell ActiveDirectory module (via Remote Server Administration tools download) you can do it by scripting.
And, by default, SQL Server 2012 setup runs services in "virtual accounts" (NT Service\ prefix, e.g, NT Service\MSSQLServer. These are like local machine accounts, not domain accounts, but you still can't assign them log on as service rights if your server is joined to a domain. SQL Server setup attempts to assign the right at install, and the SQL Server Config Management tool likewise attempts to assign the right when you change logon account.
And the beautiful catch-22 is this: SQL Server tools depend on (some component of) RSAT to assign the logon as service right. If you don't happen to have RSAT installed on your member server, SQL Server Config Manager fails silently trying to apply the setting (despite all the gaudy pre-installation verification it runs) and you end up with services that won't start.
The one hint of this requirement that I was able to find in the blizzard of SQL Server and Virtual Account doc was this: https://msdn.microsoft.com/en-us/library/ms143504.aspx#New_Accounts, search for RSAT.
If you want to remove /category/
from the url, follow these two steps:
/%category%/%postname%/
.
Save it and you’ll see your URL changed to this format: http://yourblog.com/quotes/
(Source: http://premium.wpmudev.org/blog/daily-tip-quick-trick-to-remove-category-from-wordpress-url/)
Here the strsplit
solution for a dataframe using dplyr
package
col1 = c("TGAS_1121", "MGAS_1432", "ATGAS_1121")
col2 = c("T", "M", "A")
df = data.frame(col1, col2)
df
col1 col2
1 TGAS_1121 T
2 MGAS_1432 M
3 ATGAS_1121 A
df<-mutate(df,col1=as.character(col1))
df2<-mutate(df,col1=sapply(strsplit(df$col1, split='_', fixed=TRUE),function(x) (x[2])))
df2
col1 col2
1 1121 T
2 1432 M
3 1121 A
For MacOS Mojave running MySQL 5.6.23 I had this problem with writing files, but not loading them. (Not seen with previous versions of Mac OS). As most of the answers to this question have been for other systems, I thought I would post the my.cnf file that cured this (and a socket problems too) in case it is of help to other Mac users. This is /etc/my.cnf
[client]
default-character-set=utf8
[mysqld]
character-set-server=utf8
secure-file-priv = ""
skip-external-locking
(The internationalization is irrelevant to the question.)
Nothing else required. Just turn the MySQL server off and then on again in Preferences (we are talking Mac) for this to take.
I created a Bootstrap plugin that incorporates a lot of the ideas posted here.
Demo on Bootply: http://www.bootply.com/cObcYInvpq
Github: https://github.com/jhaygt/bootstrap-multimodal
It also addresses the issue with successive modals causing the backdrop to become darker and darker. This ensures that only one backdrop is visible at any given time:
if(modalIndex > 0)
$('.modal-backdrop').not(':first').addClass('hidden');
The z-index of the visible backdrop is updated on both the show.bs.modal
and hidden.bs.modal
events:
$('.modal-backdrop:first').css('z-index', MultiModal.BASE_ZINDEX + (modalIndex * 20));
If you happen to have both a bash shell and jad:
JAR=(your jar file name)
unzip -d $JAR.tmp $JAR
pushd $JAR.tmp
for f in `find . -name '*.class'`; do
jad -d $(dirname $f) -s java -lnc $f
done
popd
I might be a tiny, tiny bit off with that, but it should work more or less as advertised. You should end up with $JAR.tmp
containing your decompiled files.
For me, the problem was having nested EAGER fetches.
One solution is to set the nested fields to LAZY and use Hibernate.initialize() to load the nested field(s):
x = session.get(ClassName.class, id);
Hibernate.initialize(x.getNestedField());
First open your SSH server with username and password and change to the default root user(User with all permissions) then follow the steps below,
crontab -l
now you will see the list of
all cronjobs.crontab -e
a file with all cron jobs will be
opened.min hr
dayofmonth month dayofweek pathtocronjobfile
and save the file.crontab: installing new
crontab
now again check the list of cronjobs your cron job will be
listed there.The default to open/add rows to a table is Edit Top 200 Rows. If you have more than 200 rows, like me now, then you need to change the default setting. Here's what I did to change the edit default to 300:
In my instance, there was something completely odd that I'm not sure what the cause was. An entire folder was committed previously. I could see it in Git, Windows Explorer, and GitHub, but any changes I made to the folder itself and the files in it were ignored. Using git check-ignore
to see what was ignoring it, and attempting to remove it using git rm --cached
had no impact. The changes were not able to be staged.
I fixed it by:
400 is the best choice in both cases. If you want to further clarify the error you can either change the Reason Phrase or include a body to explain the error.
412 - Precondition failed is used for conditional requests when using last-modified date and ETags.
403 - Forbidden is used when the server wishes to prevent access to a resource.
The only other choice that is possible is 422 - Unprocessable entity.
For those whom this did not work, here is how I hid the labels on the X-axis-
options: {
maintainAspectRatio: false,
layout: {
padding: {
left: 1,
right: 2,
top: 2,
bottom: 0,
},
},
scales: {
xAxes: [
{
time: {
unit: 'Areas',
},
gridLines: {
display: false,
drawBorder: false,
},
ticks: {
maxTicksLimit: 7,
display: false, //this removed the labels on the x-axis
},
'dataset.maxBarThickness': 5,
},
],
Don't want to be repetitive, but just to summarize in other way (features added in new HttpClient):
I wrote an article, where I covered the difference between old "http" and new "HttpClient". The goal was to explain it in the easiest way possible.
But I've foun that sollution for MOngo on Git By the way, in inserts code - it has movie's name, but noi movie's ID.
You have a collection of Actors with an array of the Movies they've done.
You want to generate a collection of Movies with an array of Actors in each.
Some sample data
db.actors.insert( { actor: "Richard Gere", movies: ['Pretty Woman', 'Runaway Bride', 'Chicago'] });
db.actors.insert( { actor: "Julia Roberts", movies: ['Pretty Woman', 'Runaway Bride', 'Erin Brockovich'] });
We need to loop through each movie in the Actor document and emit each Movie individually.
The catch here is in the reduce phase. We cannot emit an array from the reduce phase, so we must build an Actors array inside of the "value" document that is returned.
The codemap = function() {
for(var i in this.movies){
key = { movie: this.movies[i] };
value = { actors: [ this.actor ] };
emit(key, value);
}
}
reduce = function(key, values) {
actor_list = { actors: [] };
for(var i in values) {
actor_list.actors = values[i].actors.concat(actor_list.actors);
}
return actor_list;
}
Notice how actor_list is actually a javascript object that contains an array. Also notice that map emits the same structure.
Run the following to execute the map / reduce, output it to the "pivot" collection and print the result:
printjson(db.actors.mapReduce(map, reduce, "pivot")); db.pivot.find().forEach(printjson);
Here is the sample output, note that "Pretty Woman" and "Runaway Bride" have both "Richard Gere" and "Julia Roberts".
{ "_id" : { "movie" : "Chicago" }, "value" : { "actors" : [ "Richard Gere" ] } }
{ "_id" : { "movie" : "Erin Brockovich" }, "value" : { "actors" : [ "Julia Roberts" ] } }
{ "_id" : { "movie" : "Pretty Woman" }, "value" : { "actors" : [ "Richard Gere", "Julia Roberts" ] } }
{ "_id" : { "movie" : "Runaway Bride" }, "value" : { "actors" : [ "Richard Gere", "Julia Roberts" ] } }
You can try creating a css for your font with font-face (like explained here)
Step #1
Create a css file with font face and place it somewhere, like in assets/fonts
customfont.css
@font-face {
font-family: YourFontFamily;
src: url("/assets/font/yourFont.otf") format("truetype");
}
Step #2
Add the css to your .angular-cli.json in the styles
config
"styles":[
//...your other styles
"assets/fonts/customFonts.css"
]
Do not forget to restart ng serve
after doing this
Step #3
Use the font in your code
component.css
span {font-family: YourFontFamily; }
I developed an ultimate solution for image scaling in Swift.
You can use it to resize image to fill, aspect fill or aspect fit specified size.
You can align image to center or any of four edges and four corners.
And also you can trim extra space which is added if aspect ratios of original image and target size are not equal.
enum UIImageAlignment {
case Center, Left, Top, Right, Bottom, TopLeft, BottomRight, BottomLeft, TopRight
}
enum UIImageScaleMode {
case Fill,
AspectFill,
AspectFit(UIImageAlignment)
}
extension UIImage {
func scaleImage(width width: CGFloat? = nil, height: CGFloat? = nil, scaleMode: UIImageScaleMode = .AspectFit(.Center), trim: Bool = false) -> UIImage {
let preWidthScale = width.map { $0 / size.width }
let preHeightScale = height.map { $0 / size.height }
var widthScale = preWidthScale ?? preHeightScale ?? 1
var heightScale = preHeightScale ?? widthScale
switch scaleMode {
case .AspectFit(_):
let scale = min(widthScale, heightScale)
widthScale = scale
heightScale = scale
case .AspectFill:
let scale = max(widthScale, heightScale)
widthScale = scale
heightScale = scale
default:
break
}
let newWidth = size.width * widthScale
let newHeight = size.height * heightScale
let canvasWidth = trim ? newWidth : (width ?? newWidth)
let canvasHeight = trim ? newHeight : (height ?? newHeight)
UIGraphicsBeginImageContextWithOptions(CGSizeMake(canvasWidth, canvasHeight), false, 0)
var originX: CGFloat = 0
var originY: CGFloat = 0
switch scaleMode {
case .AspectFit(let alignment):
switch alignment {
case .Center:
originX = (canvasWidth - newWidth) / 2
originY = (canvasHeight - newHeight) / 2
case .Top:
originX = (canvasWidth - newWidth) / 2
case .Left:
originY = (canvasHeight - newHeight) / 2
case .Bottom:
originX = (canvasWidth - newWidth) / 2
originY = canvasHeight - newHeight
case .Right:
originX = canvasWidth - newWidth
originY = (canvasHeight - newHeight) / 2
case .TopLeft:
break
case .TopRight:
originX = canvasWidth - newWidth
case .BottomLeft:
originY = canvasHeight - newHeight
case .BottomRight:
originX = canvasWidth - newWidth
originY = canvasHeight - newHeight
}
default:
break
}
self.drawInRect(CGRectMake(originX, originY, newWidth, newHeight))
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return image
}
}
There are examples of applying this solution below.
Gray rectangle is target site image will be resized to.
Blue circles in light blue rectangle is the image (I used circles because it's easy to see when it's scaled without preserving aspect).
Light orange color marks areas that will be trimmed if you pass trim: true
.
Aspect fit before and after scaling:
Another example of aspect fit:
Aspect fit with top alignment:
Aspect fill:
Fill:
I used upscaling in my examples because it's simpler to demonstrate but solution also works for downscaling as in question.
For JPEG compression you should use this :
let compressionQuality: CGFloat = 0.75 // adjust to change JPEG quality
if let data = UIImageJPEGRepresentation(image, compressionQuality) {
// ...
}
You can check out my gist with Xcode playground.
I just used this:
grep -c $'\x0c' filename
To search for and count a page control character in the file..
So to include an offset in the output:
grep -b -o $'\x0c' filename | less
I am just piping the result to less because the character I am greping for does not print well and the less displays the results cleanly. Output example:
21:^L
23:^L
2005:^L
Would the Python termcolor module do? This would be a rough equivalent for some uses.
from termcolor import colored
print colored('hello', 'red'), colored('world', 'green')
The example is right from this post, which has a lot more. Here is a part of the example from docs
import sys
from termcolor import colored, cprint
text = colored('Hello, World!', 'red', attrs=['reverse', 'blink'])
print(text)
cprint('Hello, World!', 'green', 'on_red')
A specific requirement was to set the color, and presumably other terminal attributes, so that all following prints are that way. While I stated in the original post that this is possible with this module I now don't think so. See the last section for a way to do that.
However, most of the time we print short segments of text in color, a line or two. So the interface in these examples may be a better fit than to 'turn on' a color, print, and then turn it off. (Like in the Perl example shown.) Perhaphs you can add optional argument(s) to your print function for coloring the output as well, and in the function use module's functions to color the text. This also makes it easier to resolve occasional conflicts between formatting and coloring. Just a thought.
Here is a basic approach to set the terminal so that all following prints are rendered with a given color, attributes, or mode.
Once an appropriate ANSI sequence is sent to the terminal, all following text is rendered that way. Thus if we want all text printed to this terminal in the future to be bright/bold red, print ESC[
followed by the codes for "bright" attribute (1) and red color (31), followed by m
# print "\033[1;31m" # this would emit a new line as well
import sys
sys.stdout.write("\033[1;31m")
print "All following prints will be red ..."
To turn off any previously set attributes use 0 for attribute, \033[0;35m
(magenta).
To suppress a new line in python 3 use print('...', end="")
. The rest of the job is about packaging this for modular use (and for easier digestion).
File colors.py
RED = "\033[1;31m"
BLUE = "\033[1;34m"
CYAN = "\033[1;36m"
GREEN = "\033[0;32m"
RESET = "\033[0;0m"
BOLD = "\033[;1m"
REVERSE = "\033[;7m"
I recommend a quick read through some references on codes. Colors and attributes can be combined and one can put together a nice list in this package. A script
import sys
from colors import *
sys.stdout.write(RED)
print "All following prints rendered in red, until changed"
sys.stdout.write(REVERSE + CYAN)
print "From now on change to cyan, in reverse mode"
print "NOTE: 'CYAN + REVERSE' wouldn't work"
sys.stdout.write(RESET)
print "'REVERSE' and similar modes need be reset explicitly"
print "For color alone this is not needed; just change to new color"
print "All normal prints after 'RESET' above."
If the constant use of sys.stdout.write()
is a bother it can be be wrapped in a tiny function, or the package turned into a class with methods that set terminal behavior (print ANSI codes).
Some of the above is more of a suggestion to look it up, like combining reverse mode and color. (This is available in the Perl module used in the question, and is also sensitive to order and similar.)
A convenient list of escape codes is surprisingly hard to find, while there are many references on terminal behavior and how to control it. The Wiki page on ANSI escape codes has all information but requires a little work to bring it together. Pages on Bash prompt have a lot of specific useful information. Here is another page with straight tables of codes. There is much more out there.
This can be used alongside a module like termocolor
.
To trigger the function with click or touch, you could change this:
$(document).click( function () {
To this:
$(document).on('click touchstart', function () {
Or this:
$(document).on('click touch', function () {
The touchstart
event fires as soon as an element is touched, the touch
event is more like a "tap", i.e. a single contact on the surface. You should really try each of these to see what works best for you. On some devices, touch
can be a little harder to trigger (which may be a good or bad thing - it prevents a drag being counted, but an accidental small drag may cause it to not be fired).
next((x for x in test_list if x.value == value), None)
This gets the first item from the list that matches the condition, and returns None
if no item matches. It's my preferred single-expression form.
However,
for x in test_list:
if x.value == value:
print("i found it!")
break
The naive loop-break version, is perfectly Pythonic -- it's concise, clear, and efficient. To make it match the behavior of the one-liner:
for x in test_list:
if x.value == value:
print("i found it!")
break
else:
x = None
This will assign None
to x
if you don't break
out of the loop.
Just need to change one letter:), rename 640x360.ogv to 640x360.ogg, it will work for all the 3 browers.
In Twitter Bootstrap 4, inputs and buttons can be aligned using the input-group-prepend
and input-group-append
classes (see https://getbootstrap.com/docs/4.0/components/input-group/#button-addons)
<div class="input-group mb-3">
<div class="input-group-prepend">
<button class="btn btn-outline-secondary" type="button">Button</button>
</div>
<input type="text" class="form-control">
</div>
<div class="input-group mb-3">
<div class="input-group-append">
<button class="btn btn-outline-secondary" type="button">Button</button>
</div>
<input type="text" class="form-control">
</div>
As shown in the answer by @abimelex, inputs and buttons can be aligned by using the .input-group
classes (see http://getbootstrap.com/components/#input-groups-buttons)
<div class="input-group">
<span class="input-group-btn">
<button class="btn btn-default" type="button">Go!</button>
</span>
<input type="text" class="form-control">
</div>
<div class="input-group">
<input type="text" class="form-control">
<span class="input-group-btn">
<button class="btn btn-default" type="button">Go!</button>
</span>
</div>
This solution has been added to keep my answer up to date, but please stick your up-vote on the answer provided by @abimelex.
Bootstrap offers an .input-append
class, which works as a wrapper element and corrects this for you:
<div class="input-append">
<input name="search" id="search"/>
<button class="btn">button</button>
</div>
As pointed out by @OleksiyKhilkevich in his answer, there is a second way to align input
and button
by using the .form-horizontal
class:
<div class="form-horizontal">
<input name="search" id="search"/>
<button class="btn">button</button>
</div>
The difference between these two classes is that .input-append
will place the button
up against the input
element (so they look like they are attached), where .form-horizontal
will place a space between them.
-- Note --
To allow the input
and button
elements to be next to each other without spacing, the font-size
has been set to 0
in the .input-append
class (this removes the white spacing between the inline-block
elements). This may have an adverse effect on font-sizes in the input
element if you want to override the defaults using em
or %
measurements.
Expressions like "difference in days" are never as simple as they seem. If you have the following dates:
d1: 2011-10-15 23:59:00
d1: 2011-10-16 00:01:00
the difference in time is 2 minutes, should the "difference in days" be 1 or 0? Similar issues arise for any expression of the difference in months, years or whatever since years, months and days are of different lengths and different times (e.g. the day that daylight saving starts is 1 hour shorter than usual and two hours shorter than the day that it ends).
Here is a function for a difference in days that ignores the time, i.e. for the above dates it returns 1.
/*
Get the number of days between two dates - not inclusive.
"between" does not include the start date, so days
between Thursday and Friday is one, Thursday to Saturday
is two, and so on. Between Friday and the following Friday is 7.
e.g. getDaysBetweenDates( 22-Jul-2011, 29-jul-2011) => 7.
If want inclusive dates (e.g. leave from 1/1/2011 to 30/1/2011),
use date prior to start date (i.e. 31/12/2010 to 30/1/2011).
Only calculates whole days.
Assumes d0 <= d1
*/
function getDaysBetweenDates(d0, d1) {
var msPerDay = 8.64e7;
// Copy dates so don't mess them up
var x0 = new Date(d0);
var x1 = new Date(d1);
// Set to noon - avoid DST errors
x0.setHours(12,0,0);
x1.setHours(12,0,0);
// Round to remove daylight saving errors
return Math.round( (x1 - x0) / msPerDay );
}
This can be more concise:
/* Return number of days between d0 and d1._x000D_
** Returns positive if d0 < d1, otherwise negative._x000D_
**_x000D_
** e.g. between 2000-02-28 and 2001-02-28 there are 366 days_x000D_
** between 2015-12-28 and 2015-12-29 there is 1 day_x000D_
** between 2015-12-28 23:59:59 and 2015-12-29 00:00:01 there is 1 day_x000D_
** between 2015-12-28 00:00:01 and 2015-12-28 23:59:59 there are 0 days_x000D_
** _x000D_
** @param {Date} d0 - start date_x000D_
** @param {Date} d1 - end date_x000D_
** @returns {number} - whole number of days between d0 and d1_x000D_
**_x000D_
*/_x000D_
function daysDifference(d0, d1) {_x000D_
var diff = new Date(+d1).setHours(12) - new Date(+d0).setHours(12);_x000D_
return Math.round(diff/8.64e7);_x000D_
}_x000D_
_x000D_
// Simple formatter_x000D_
function formatDate(date){_x000D_
return [date.getFullYear(),('0'+(date.getMonth()+1)).slice(-2),('0'+date.getDate()).slice(-2)].join('-');_x000D_
}_x000D_
_x000D_
// Examples_x000D_
[[new Date(2000,1,28), new Date(2001,1,28)], // Leap year_x000D_
[new Date(2001,1,28), new Date(2002,1,28)], // Not leap year_x000D_
[new Date(2017,0,1), new Date(2017,1,1)] _x000D_
].forEach(function(dates) {_x000D_
document.write('From ' + formatDate(dates[0]) + ' to ' + formatDate(dates[1]) +_x000D_
' is ' + daysDifference(dates[0],dates[1]) + ' days<br>');_x000D_
});
_x000D_
To manipulate XML in Java, I always tend to use the Transformer API:
import javax.xml.transform.Source;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.stream.StreamSource;
public static Document loadXMLFrom(String xml) throws TransformerException {
Source source = new StreamSource(new StringReader(xml));
DOMResult result = new DOMResult();
TransformerFactory.newInstance().newTransformer().transform(source , result);
return (Document) result.getNode();
}
I would recommend creating a HashMap
from set A, and then iterating through set B and checking if any element of B is in A. This would run in O(|A|+|B|)
time (as there would be no collisions), whereas retainAll(Collection<?> c)
must run in O(|A|*|B|)
time.
Move doSomething
definition outside of its class declaration and after B
and also make add
accessible to A
by public
-ing it or friend
-ing it.
class B;
class A
{
void doSomething(B * b);
};
class B
{
public:
void add() {}
};
void A::doSomething(B * b)
{
b->add();
}
You can do it in one sql statement for existing customers, 3 statements for new ones. All you have to do is be an optimist and act as though the customer already exists:
insert into "order" (customer_id, price) values \
((select customer_id from customer where name = 'John'), 12.34);
If the customer does not exist, you'll get an sql exception which text will be something like:
null value in column "customer_id" violates not-null constraint
(providing you made customer_id non-nullable, which I'm sure you did). When that exception occurs, insert the customer into the customer table and redo the insert into the order table:
insert into customer(name) values ('John');
insert into "order" (customer_id, price) values \
((select customer_id from customer where name = 'John'), 12.34);
Unless your business is growing at a rate that will make "where to put all the money" your only real problem, most of your inserts will be for existing customers. So, most of the time, the exception won't occur and you'll be done in one statement.
According to this article, != performs faster
My full example is here, but I will provide a summary below.
Layout
Add a .swift and .xib file each with the same name to your project. The .xib file contains your custom view layout (using auto layout constraints preferably).
Make the swift file the xib file's owner.
Add the following code to the .swift file and hook up the outlets and actions from the .xib file.
import UIKit
class ResuableCustomView: UIView {
let nibName = "ReusableCustomView"
var contentView: UIView?
@IBOutlet weak var label: UILabel!
@IBAction func buttonTap(_ sender: UIButton) {
label.text = "Hi"
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
guard let view = loadViewFromNib() else { return }
view.frame = self.bounds
self.addSubview(view)
contentView = view
}
func loadViewFromNib() -> UIView? {
let bundle = Bundle(for: type(of: self))
let nib = UINib(nibName: nibName, bundle: bundle)
return nib.instantiate(withOwner: self, options: nil).first as? UIView
}
}
Use it
Use your custom view anywhere in your storyboard. Just add a UIView
and set the class name to your custom class name.
For a while Christopher Swasey's approach was the best approach I had found. I asked a couple of the senior devs on my team about it and one of them had the perfect solution! It satisfies every one of the concerns that Christopher Swasey so eloquently addressed and it doesn't require boilerplate subclass code(my main concern with his approach). There is one gotcha, but other than that it is fairly intuitive and easy to implement.
MyCustomClass.swift
MyCustomClass.xib
File's Owner
of the .xib file to be your custom class (MyCustomClass
)class
value (under the identity Inspector
) for your custom view in the .xib file blank. So your custom view will have no specified class, but it will have a specified File's Owner.Assistant Editor
.
Connections Inspector
you will notice that your Referencing Outlets do not reference your custom class (i.e. MyCustomClass
), but rather reference File's Owner
. Since File's Owner
is specified to be your custom class, the outlets will hook up and work propery. NibLoadable
protocol referenced below.
.swift
file name is different from your .xib
file name, then set the nibName
property to be the name of your .xib
file.required init?(coder aDecoder: NSCoder)
and override init(frame: CGRect)
to call setupFromNib()
like the example below.MyCustomClass
).Here is the protocol you will want to reference:
public protocol NibLoadable {
static var nibName: String { get }
}
public extension NibLoadable where Self: UIView {
public static var nibName: String {
return String(describing: Self.self) // defaults to the name of the class implementing this protocol.
}
public static var nib: UINib {
let bundle = Bundle(for: Self.self)
return UINib(nibName: Self.nibName, bundle: bundle)
}
func setupFromNib() {
guard let view = Self.nib.instantiate(withOwner: self, options: nil).first as? UIView else { fatalError("Error loading \(self) from nib") }
addSubview(view)
view.translatesAutoresizingMaskIntoConstraints = false
view.leadingAnchor.constraint(equalTo: self.safeAreaLayoutGuide.leadingAnchor, constant: 0).isActive = true
view.topAnchor.constraint(equalTo: self.safeAreaLayoutGuide.topAnchor, constant: 0).isActive = true
view.trailingAnchor.constraint(equalTo: self.safeAreaLayoutGuide.trailingAnchor, constant: 0).isActive = true
view.bottomAnchor.constraint(equalTo: self.safeAreaLayoutGuide.bottomAnchor, constant: 0).isActive = true
}
}
And here is an example of MyCustomClass
that implements the protocol (with the .xib file being named MyCustomClass.xib
):
@IBDesignable
class MyCustomClass: UIView, NibLoadable {
@IBOutlet weak var myLabel: UILabel!
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
setupFromNib()
}
override init(frame: CGRect) {
super.init(frame: frame)
setupFromNib()
}
}
NOTE: If you miss the Gotcha and set the class
value inside your .xib file to be your custom class, then it will not draw in the storyboard and you will get a EXC_BAD_ACCESS
error when you run the app because it gets stuck in an infinite loop of trying to initialize the class from the nib using the init?(coder aDecoder: NSCoder)
method which then calls Self.nib.instantiate
and calls the init
again.
This page seems to be a good central location for posting suggestions about the Fragment IllegalArgumentException. Here is one more thing you can try. This is what finally worked for me:
I had forgotten that I had a separate layout file for landscape orientation. After I added my FrameLayout container there, too, the fragment worked.
On a separate note, if you have already tried everything else suggested on this page (and the entire Internet, too) and have been pulling out your hair for hours, consider just dumping these annoying fragments and going back to a good old standard layout. (That's actually what I was in the process of doing when I finally discovered my problem.) You can still use the container concept. However, instead of filling it with a fragment, you can use the xml include
tag to fill it with the same layout that you would have used in your fragment. You could do something like this in your main layout:
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<include layout="@layout/former_fragment_layout" />
</FrameLayout>
where former_fragment_layout
is the name of the xml layout file that you were trying to use in your fragment. See Re-using Layouts with include for more info.
Have you tried this?
$("#notification").fadeOut(300, function(){
$(this).remove();
});
That is, using the current this context to target the element in the inner function and not the id. I use this pattern all the time - it should work.
In case anyone is still wondering...
I did it like this:
<a href="data:application/xml;charset=utf-8,your code here" download="filename.html">Save</a>
cant remember my source but it uses the following techniques\features:
Found the reference:
http://paxcel.net/blog/savedownload-file-using-html5-javascript-the-download-attribute-2/
EDIT: As you can gather from the comments this does NOT work in
Please note I'm a beginner. If My solution is wrong, please feel free to correct and/or let me know. I may learn something new too.
My solution:
Change the downloadPath accordingly to where you want your file to be saved. Feel free to use the absolute path too for your usage.
Save the below as downloadFile.py.
Usage: python downloadFile.py url-of-the-file-to-download new-file-name.extension
Remember to add an extension!
Example usage: python downloadFile.py http://www.google.co.uk google.html
import requests
import sys
import os
def downloadFile(url, fileName):
with open(fileName, "wb") as file:
response = requests.get(url)
file.write(response.content)
scriptPath = sys.path[0]
downloadPath = os.path.join(scriptPath, '../Downloads/')
url = sys.argv[1]
fileName = sys.argv[2]
print('path of the script: ' + scriptPath)
print('downloading file to: ' + downloadPath)
downloadFile(url, downloadPath + fileName)
print('file downloaded...')
print('exiting program...')
The main reason is due to the fact that arrays in Java are covariant.
There's a good overview here.
If you're going to have a lot of inheritence (that's the case here) I suggest you to pass all parameters using **kwargs
, and then pop
them right after you use them (unless you need them in upper classes).
class First(object):
def __init__(self, *args, **kwargs):
self.first_arg = kwargs.pop('first_arg')
super(First, self).__init__(*args, **kwargs)
class Second(First):
def __init__(self, *args, **kwargs):
self.second_arg = kwargs.pop('second_arg')
super(Second, self).__init__(*args, **kwargs)
class Third(Second):
def __init__(self, *args, **kwargs):
self.third_arg = kwargs.pop('third_arg')
super(Third, self).__init__(*args, **kwargs)
This is the simplest way to solve those kind of problems.
third = Third(first_arg=1, second_arg=2, third_arg=3)
I strongly recommend using Joda Time http://joda-time.sourceforge.net/faq.html
This will get the index of the selected option on change:
$('select').change(function(){_x000D_
console.log($('option:selected',this).index()); _x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<select name="CCards">_x000D_
<option value="0">Select Saved Payment Method:</option>_x000D_
<option value="1846">test xxxx1234</option>_x000D_
<option value="1962">test2 xxxx3456</option>_x000D_
</select>
_x000D_
When to use a heap and when to use a BST
Heap is better at findMin/findMax (O(1)
), while BST is good at all finds (O(logN)
). Insert is O(logN)
for both structures. If you only care about findMin/findMax (e.g. priority-related), go with heap. If you want everything sorted, go with BST.
First few slides from here explain things very clearly.
You can simply use sklearn for this
from sklearn.utils import shuffle
df = shuffle(df)
FragmentStatePagerAdapter = To accommodate a large number of fragments in ViewPager. As this adapter destroys the fragment when it is not visible to the user and only savedInstanceState of the fragment is kept for further use. This way a low amount of memory is used and a better performance is delivered in case of dynamic fragments.
specifying the "antMatcher" before "authorizeRequests()" like below will restrict the authenticaiton to only those URLs specified in "antMatcher"
http.csrf().disable() .antMatcher("/apiurlneedsauth/**").authorizeRequests().
I would do something like this:
var myComponent = React.createComponent({
getInitialState: function () {
return {
showCancel: false,
};
},
toggleCancel: function () {
this.setState({
showCancel: !this.state.showCancel
});
}
_renderCancel: function () {
if (this.state.showCancel) {
return (
<TouchableHighlight
onPress={this.toggleCancel()}>
<View>
<Text style={styles.cancelButtonText}>Cancel</Text>
</View>
</TouchableHighlight>
);
} else {
return null;
}
},
render: function () {
return (
<TextInput
onFocus={this.toggleCancel()}
onChangeText={(text) => this.doSearch({input: text})} />
{this._renderCancel()}
);
}
});
text_file = open("Output.txt", "w")
text_file.write("Purchase Amount: %s" % TotalAmount)
text_file.close()
If you use a context manager, the file is closed automatically for you
with open("Output.txt", "w") as text_file:
text_file.write("Purchase Amount: %s" % TotalAmount)
If you're using Python2.6 or higher, it's preferred to use str.format()
with open("Output.txt", "w") as text_file:
text_file.write("Purchase Amount: {0}".format(TotalAmount))
For python2.7 and higher you can use {}
instead of {0}
In Python3, there is an optional file
parameter to the print
function
with open("Output.txt", "w") as text_file:
print("Purchase Amount: {}".format(TotalAmount), file=text_file)
Python3.6 introduced f-strings for another alternative
with open("Output.txt", "w") as text_file:
print(f"Purchase Amount: {TotalAmount}", file=text_file)
I'm developing an UWP application which connects to a MQTT broker in the LAN. I go a similar error.
MQTTnet.Exceptions.MqttCommunicationException: 'An attempt was made to access a socket in a way forbidden by its access permissions [::ffff:xxx.xxx.xxx.xxx]:1883'
ExtendedSocketException: An attempt was made to access a socket in a way forbidden by its access permissions [::ffff:xxx.xxx.xxx.xxx]:1883
Turned out that I forgot to give the app the correct capabilites ...
Guid? myGuidVar = (Guid?)null;
It could be. Unnecessary casting not required.
Guid? myGuidVar = null;
What solved it for me was setting Build Active Architecture Only from No to Yes.
Note: .ix
has been deprecated since Pandas v0.20. You should instead use .loc
or .iloc
, as appropriate.
The DataFrame.ix index is what you want to be accessing. It's a little confusing (I agree that Pandas indexing is perplexing at times!), but the following seems to do what you want:
>>> df = DataFrame(np.random.rand(4,5), columns = list('abcde'))
>>> df.ix[:,'b':]
b c d e
0 0.418762 0.042369 0.869203 0.972314
1 0.991058 0.510228 0.594784 0.534366
2 0.407472 0.259811 0.396664 0.894202
3 0.726168 0.139531 0.324932 0.906575
where .ix[row slice, column slice] is what is being interpreted. More on Pandas indexing here: http://pandas.pydata.org/pandas-docs/stable/indexing.html#indexing-advanced
An easy and safe method:
editText.clearFocus();
editText.setFocusable(false);
Here an alternative method. It uses Get-WmiObject CIM_DATAFILE to select the version.
(Get-WmiObject -Class CIM_DataFile -Filter "Name='C:\\Windows\\explorer.exe'" | Select-Object Version).Version
Short answer. No. Eclipse does not have a command line switch like Visual Studio to build a project.
JSON.stringify
takes more optional arguments.
Try:
JSON.stringify({a:1,b:2,c:{d:1,e:[1,2]}}, null, 4); // Indented 4 spaces
JSON.stringify({a:1,b:2,c:{d:1,e:[1,2]}}, null, "\t"); // Indented with tab
From:
How can I beautify JSON programmatically?
Should work in modern browsers, and it is included in json2.js if you need a fallback for browsers that don't support the JSON helper functions. For display purposes, put the output in a <pre>
tag to get newlines to show.
To wrap in single quotes (for example) ciw'<C-r>"'<esc>
works, but repeat won't work. Try:
ciw'<C-r><C-o>"'<esc>
This puts the contents of the default register "literally". Now you can press .
on any word to wrap it in quotes. To learn more see :h[elp] i_ctrl-r
and more about text objects at :h text-objects
Source: http://vimcasts.org/episodes/pasting-from-insert-mode/
You could also just use jQuery to remove the contents of the div that contains your svg.
$("#container_div_id").html("");
Range("$A$1").Value = "'01/01/13 00:00"
will do it.
Note the single quote; this will defeat automatic conversion to a number type. But is that what you really want? An alternative would be to format the cell to take a date-time value. Then drop the single quote from the string.
You can use a cast to char to see the date results
select to_char(to_date('17-MAR-17 06.04.54','dd-MON-yy hh24:mi:ss'), 'mm/dd/yyyy hh24:mi:ss') from dual;
_x000D_
Here you are trying to execute IQueryable object on inactive DBContext. your DBcontext is already disposed of. you can only execute IQueryable object before DBContext is disposed of. Means you need to write users.Select(x => x.ToInfo()).ToList()
statement inside using scope
This depends a lot on what you mean by "revert".
If you want to temporarily go back to it, fool around, then come back to where you are, all you have to do is check out the desired commit:
# This will detach your HEAD, that is, leave you with no branch checked out:
git checkout 0d1d7fc32
Or if you want to make commits while you're there, go ahead and make a new branch while you're at it:
git checkout -b old-state 0d1d7fc32
To go back to where you were, just check out the branch you were on again. (If you've made changes, as always when switching branches, you'll have to deal with them as appropriate. You could reset to throw them away; you could stash, checkout, stash pop to take them with you; you could commit them to a branch there if you want a branch there.)
If, on the other hand, you want to really get rid of everything you've done since then, there are two possibilities. One, if you haven't published any of these commits, simply reset:
# This will destroy any local modifications.
# Don't do it if you have uncommitted work you want to keep.
git reset --hard 0d1d7fc32
# Alternatively, if there's work to keep:
git stash
git reset --hard 0d1d7fc32
git stash pop
# This saves the modifications, then reapplies that patch after resetting.
# You could get merge conflicts, if you've modified things which were
# changed since the commit you reset to.
If you mess up, you've already thrown away your local changes, but you can at least get back to where you were before by resetting again.
On the other hand, if you've published the work, you probably don't want to reset the branch, since that's effectively rewriting history. In that case, you could indeed revert the commits. With Git, revert has a very specific meaning: create a commit with the reverse patch to cancel it out. This way you don't rewrite any history.
# This will create three separate revert commits:
git revert a867b4af 25eee4ca 0766c053
# It also takes ranges. This will revert the last two commits:
git revert HEAD~2..HEAD
#Similarly, you can revert a range of commits using commit hashes (non inclusive of first hash):
git revert 0d1d7fc..a867b4a
# Reverting a merge commit
git revert -m 1 <merge_commit_sha>
# To get just one, you could use `rebase -i` to squash them afterwards
# Or, you could do it manually (be sure to do this at top level of the repo)
# get your index and work tree into the desired state, without changing HEAD:
git checkout 0d1d7fc32 .
# Then commit. Be sure and write a good message describing what you just did
git commit
The git-revert
manpage actually covers a lot of this in its description. Another useful link is this git-scm.com section discussing git-revert.
If you decide you didn't want to revert after all, you can revert the revert (as described here) or reset back to before the revert (see the previous section).
You may also find this answer helpful in this case:
How can I move HEAD back to a previous location? (Detached head) & Undo commits
In recent versions of Git you can add multiple pushurl
s for a given remote. Use the following to add two pushurl
s to your origin
:
git remote set-url --add --push origin git://original/repo.git
git remote set-url --add --push origin git://another/repo.git
So when you push to origin
, it will push to both repositories.
UPDATE 1: Git 1.8.0.1 and 1.8.1 (and possibly other versions) seem to have a bug that causes --add
to replace the original URL the first time you use it, so you need to re-add the original URL using the same command. Doing git remote -v
should reveal the current URLs for each remote.
UPDATE 2: Junio C. Hamano, the Git maintainer, explained it's how it was designed. Doing git remote set-url --add --push <remote_name> <url>
adds a pushurl
for a given remote, which overrides the default URL for pushes. However, you may add multiple pushurl
s for a given remote, which then allows you to push to multiple remotes using a single git push
. You can verify this behavior below:
$ git clone git://original/repo.git
$ git remote -v
origin git://original/repo.git (fetch)
origin git://original/repo.git (push)
$ git config -l | grep '^remote\.'
remote.origin.url=git://original/repo.git
remote.origin.fetch=+refs/heads/*:refs/remotes/origin/*
Now, if you want to push to two or more repositories using a single command, you may create a new remote named all
(as suggested by @Adam Nelson in comments), or keep using the origin
, though the latter name is less descriptive for this purpose. If you still want to use origin
, skip the following step, and use origin
instead of all
in all other steps.
So let's add a new remote called all
that we'll reference later when pushing to multiple repositories:
$ git remote add all git://original/repo.git
$ git remote -v
all git://original/repo.git (fetch) <-- ADDED
all git://original/repo.git (push) <-- ADDED
origin git://original/repo.git (fetch)
origin git://original/repo.git (push)
$ git config -l | grep '^remote\.all'
remote.all.url=git://original/repo.git <-- ADDED
remote.all.fetch=+refs/heads/*:refs/remotes/all/* <-- ADDED
Then let's add a pushurl
to the all
remote, pointing to another repository:
$ git remote set-url --add --push all git://another/repo.git
$ git remote -v
all git://original/repo.git (fetch)
all git://another/repo.git (push) <-- CHANGED
origin git://original/repo.git (fetch)
origin git://original/repo.git (push)
$ git config -l | grep '^remote\.all'
remote.all.url=git://original/repo.git
remote.all.fetch=+refs/heads/*:refs/remotes/all/*
remote.all.pushurl=git://another/repo.git <-- ADDED
Here git remote -v
shows the new pushurl
for push, so if you do git push all master
, it will push the master
branch to git://another/repo.git
only. This shows how pushurl
overrides the default url (remote.all.url).
Now let's add another pushurl
pointing to the original repository:
$ git remote set-url --add --push all git://original/repo.git
$ git remote -v
all git://original/repo.git (fetch)
all git://another/repo.git (push)
all git://original/repo.git (push) <-- ADDED
origin git://original/repo.git (fetch)
origin git://original/repo.git (push)
$ git config -l | grep '^remote\.all'
remote.all.url=git://original/repo.git
remote.all.fetch=+refs/heads/*:refs/remotes/all/*
remote.all.pushurl=git://another/repo.git
remote.all.pushurl=git://original/repo.git <-- ADDED
You see both pushurl
s we added are kept. Now a single git push all master
will push the master
branch to both git://another/repo.git
and git://original/repo.git
.
Given it's SQL 2005, you can also try this It's similar to Oracle's MINUS command (opposite of UNION)
But I would also suggest adding the DATEPART ( hour, insertDate) column for debug
SELECT idCustomer FROM reservations
EXCEPT
SELECT idCustomer FROM reservations WHERE DATEPART ( hour, insertDate) < 2
If your object is the same object of the ones you are using within the array, you should be able to get the index of the Object in the same way you do as if it was a string.
var hello = {
hello: 'world',
foo: 'bar'
};
var qaz = {
hello: 'stevie',
foo: 'baz'
}
var qazCLONE = { // new object instance and same structure
hello: 'stevie',
foo: 'baz'
}
var myArray = [hello,qaz];
myArray.indexOf(qaz) // should return 1
myArray.indexOf(qazCLONE) // should return -1
To list all available versions and choose from them :
sudo update-alternatives --config php
Or do manually
sudo a2dismod php7.1 // disable
sudo a2enmod php5.6 // enable
If you try to run a java application which needs JDK 1.6 and you are trying to run on JDK 1.4, you will come across this error. In general, trying to run a Java application on old JRE may fail. Try installing new JRE/JDK.
The easiest way to do this is with the new CSS style select
method:
soup = BeautifulSoup(html)
results = soup.select('td[valign="top"]')
For arrays of limited length use the following (as given by camickr). This is slow for repeated checks, especially for longer arrays (linear search).
Arrays.asList(...).contains(...)
For fast performance if you repeatedly check against a larger set of elements
An array is the wrong structure. Use a TreeSet
and add each element to it. It sorts elements and has a fast exist()
method (binary search).
If the elements implement Comparable
& you want the TreeSet
sorted accordingly:
ElementClass.compareTo()
method must be compatable with ElementClass.equals()
: see Triads not showing up to fight? (Java Set missing an item)
TreeSet myElements = new TreeSet();
// Do this for each element (implementing *Comparable*)
myElements.add(nextElement);
// *Alternatively*, if an array is forceably provided from other code:
myElements.addAll(Arrays.asList(myArray));
Otherwise, use your own Comparator
:
class MyComparator implements Comparator<ElementClass> {
int compareTo(ElementClass element1; ElementClass element2) {
// Your comparison of elements
// Should be consistent with object equality
}
boolean equals(Object otherComparator) {
// Your equality of comparators
}
}
// construct TreeSet with the comparator
TreeSet myElements = new TreeSet(new MyComparator());
// Do this for each element (implementing *Comparable*)
myElements.add(nextElement);
The payoff: check existence of some element:
// Fast binary search through sorted elements (performance ~ log(size)):
boolean containsElement = myElements.exists(someElement);
It surprises me that no one mentioned stat
to check file size. Some methods are definitely better: using -s
to find out whether the file is empty or not is easier than anything else if that's all you want. And if you want to find files of a size, then find
is certainly the way to go.
I also like du
a lot to get file size in kb, but, for bytes, I'd use stat
:
size=$(stat -f%z $filename) # BSD stat
size=$(stat -c%s $filename) # GNU stat?
You could write this extension method:
// Possibly call this "Do"
IEnumerable<T> Apply<T> (this IEnumerable<T> source, Action<T> action)
{
foreach (var e in source)
{
action(e);
yield return e;
}
}
Pros
Allows chaining:
MySequence
.Apply(...)
.Apply(...)
.Apply(...);
Cons
It won't actually do anything until you do something to force iteration. For that reason, it shouldn't be called .ForEach()
. You could write .ToList()
at the end, or you could write this extension method, too:
// possibly call this "Realize"
IEnumerable<T> Done<T> (this IEnumerable<T> source)
{
foreach (var e in source)
{
// do nothing
;
}
return source;
}
This may be too significant a departure from the shipping C# libraries; readers who are not familiar with your extension methods won't know what to make of your code.
The Pyzo IDE has similar capabilities as the OP asked for. You don't have to start in debug mode. Similarly to MATLAB, the commands are executed in the shell. When you set up a break-point in some source code line, the IDE stops the execution there and you can debug and issue regular IPython commands as well.
It does seem however that step-into doesn't (yet?) work well (i.e. stopping in one line and then stepping into another function) unless you set up another break-point.
Still, coming from MATLAB, this seems the best solution I've found.