I had a similar issue. It turned out that ng generate component
(using CLI version 7.1.4) adds a declaration for the child component to the AppModule, but not to the TestBed module that emulates it.
The "Tour of Heroes" sample app contains a HeroesComponent
with selector app-heroes
. The app ran fine when served, but ng test
produced this error message: 'app-heroes' is not a known element
. Adding the HeroesComponent
manually to the declarations in configureTestingModule
(in app.component.spec.ts
) eliminates this error.
describe('AppComponent', () => {
beforeEach(async(() => {
TestBed.configureTestingModule({
declarations: [
AppComponent,
HeroesComponent
],
}).compileComponents();
}));
it('should create the app', () => {
const fixture = TestBed.createComponent(AppComponent);
const app = fixture.debugElement.componentInstance;
expect(app).toBeTruthy();
});
}
Preserve the name of the column and avoid extra column addition by using the same name as input column:
changedTypedf = joindf.withColumn("show", joindf["show"].cast(DoubleType()))
No rocket scien code require .Hope this simple and short code will help.
List linesList = File.ReadAllLines("myFile.txt").ToList();
linesList.RemoveAt(0);
File.WriteAllLines("myFile.txt"), linesList.ToArray());
OR use this
public void DeleteLinesFromFile(string strLineToDelete)
{
string strFilePath = "Provide the path of the text file";
string strSearchText = strLineToDelete;
string strOldText;
string n = "";
StreamReader sr = File.OpenText(strFilePath);
while ((strOldText = sr.ReadLine()) != null)
{
if (!strOldText.Contains(strSearchText))
{
n += strOldText + Environment.NewLine;
}
}
sr.Close();
File.WriteAllText(strFilePath, n);
}
I would consider using something like:
function GetList
{
. {
$a = new-object Collections.ArrayList
$a.Add(5)
$a.Add('next 5')
} | Out-Null
$a
}
$x = GetList
Output from $a.Add
is not returned -- that holds for all $a.Add
method calls. Otherwise you would need to prepend [void]
before each the call.
In simple cases I would go with [void]$a.Add
because it is quite clear that output will not be used and is discarded.
I had a different use case, I want different formats based how long between start and end time of data in graph. I found this to be simplest approach
xAxes = {
type: "time",
time: {
displayFormats: {
hour: "hA"
}
},
display: true,
ticks: {
reverse: true
},
gridLines: {display: false}
}
// if more than two days between start and end of data, set format to show date, not hrs
if ((parseInt(Cookies.get("epoch_max")) - parseInt(Cookies.get("epoch_min"))) > (1000*60*60*24*2)) {
xAxes.time.displayFormats.hour = "MMM D";
}
For all python users:
Simply go to your destination folder in the terminal.
cd projectFoder
then start HTTP server For Python3+:
python -m http.server 8000
Serving HTTP on :: port 8000 (http://[::]:8000/) ...
go to your link: http://0.0.0.0:8000/
Enjoy :)
[ngStyle] with condition based if and else case.
<label for="file" [ngStyle]="isPreview ? {'cursor': 'default'} : {'cursor': 'pointer'}">Attachment
I had this error because I was providing a string of arguments to subprocess.call
instead of an array of arguments. To prevent this, use shlex.split
:
import shlex, subprocess
command_line = "ls -a"
args = shlex.split(command_line)
p = subprocess.Popen(args)
From remote repo:
svn log -v -r 42 --stop-on-copy --non-interactive --no-auth-cache --username USERNAME --password PASSWORD http://repourl/projectname/
Expired certificate was the cause of our "javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated".
keytool -list -v -keystore filetruststore.ts
Enter keystore password:
Keystore type: JKS
Keystore provider: SUN
Your keystore contains 1 entry
Alias name: somealias
Creation date: Jul 26, 2012
Entry type: PrivateKeyEntry
Certificate chain length: 1
Certificate[1]:
Owner: CN=Unknown, OU=SomeOU, O="Some Company, Inc.", L=SomeCity, ST=GA, C=US
Issuer: CN=Unknown, OU=SomeOU, O=Some Company, Inc.", L=SomeCity, ST=GA, C=US
Serial number: 5011a47b
Valid from: Thu Jul 26 16:11:39 EDT 2012 until: Wed Oct 24 16:11:39 EDT 2012
Also, don't forget the === operator when you're working with numbers that could mean null or 0 or return some form of false or null that isn't what you're looking for.
I know the question states MVC 3, but it was 2012, so just in case:
As of MVC 5.1 you can now pass HTML attributes to EditorFor
like so:
@Html.EditorFor(x => x.Name, new { htmlAttributes = new { @readonly = "", disabled = "" } })
If you use Db Browser for sqlite ,then it will be easy for you to modify the table. you can add foreign key in existing table without writing a query.
that's it. You successfully added foreign key in existing table.
The code you wrote will always return true
because state
cannot be both 10 and 15 for the statement to be false. if ((state != 10) && (state != 15)....
AND
is what you need not OR
.
Use $.inArray instead. This returns the index of the element in the array.
var statesArray = [10, 15, 19]; // list out all
var index = $.inArray(state, statesArray);
if(index == -1) {
console.log("Not there in array");
return true;
} else {
console.log("Found it");
return false;
}
#!/bin/bash
export FOO=bar
or
#!/bin/bash
FOO=bar
export FOO
man export:
The shell shall give the export attribute to the variables corresponding to the specified names, which shall cause them to be in the environment of subsequently executed commands. If the name of a variable is followed by = word, then the value of that variable shall be set to word.
Try like this: server.bind(("0.0.0.0", 6677))
You can use this regex:
^[A-Z][a-z]*(?:_[A-Z][a-z]*)*$
Sample code:
import re
strings = ["Alpha_beta_Gamma", "Alpha_Beta_Gamma"]
pattern = r'^[A-Z][a-z]*(?:_[A-Z][a-z]*)*$'
for s in strings:
if re.match(pattern, s):
print s + " conforms"
else:
print s + " doesn't conform"
As seen on codepad
A pattern emerges when several people (or teams) arrives at similar or identical solutions. A lot of people still use singletons in their original form or using factory templates (good discussion in Alexandrescu's Modern C++ Design). Concurrency and difficulty in managing the lifetime of the object are the main obstacles, with the former easily managed as you suggest.
Like all choices, Singleton has its fair share of ups and downs. I think they can be used in moderation, especially for objects that survive the application life span. The fact that they resemble (and probably are) globals have presumably set off the purists.
This approach resolved my issue to allow multiple domain
app.use(function(req, res, next) {
var allowedOrigins = ['http://127.0.0.1:8020', 'http://localhost:8020', 'http://127.0.0.1:9000', 'http://localhost:9000'];
var origin = req.headers.origin;
if(allowedOrigins.indexOf(origin) > -1){
res.setHeader('Access-Control-Allow-Origin', origin);
}
//res.header('Access-Control-Allow-Origin', 'http://127.0.0.1:8020');
res.header('Access-Control-Allow-Methods', 'GET, OPTIONS');
res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization');
res.header('Access-Control-Allow-Credentials', true);
return next();
});
I am not exactly sure which part to blame, but here's why MemoryStream
doesn't work for you:
As you write to MemoryStream
, it increments it's Position
property.
The constructor of StreamContent
takes into account the stream's current Position
. So if you write to the stream, then pass it to StreamContent
, the response will start from the nothingness at the end of the stream.
There's two ways to properly fix this:
1) construct content, write to stream
[HttpGet]
public HttpResponseMessage Test()
{
var stream = new MemoryStream();
var response = Request.CreateResponse(HttpStatusCode.OK);
response.Content = new StreamContent(stream);
// ...
// stream.Write(...);
// ...
return response;
}
2) write to stream, reset position, construct content
[HttpGet]
public HttpResponseMessage Test()
{
var stream = new MemoryStream();
// ...
// stream.Write(...);
// ...
stream.Position = 0;
var response = Request.CreateResponse(HttpStatusCode.OK);
response.Content = new StreamContent(stream);
return response;
}
2) looks a little better if you have a fresh Stream, 1) is simpler if your stream does not start at 0
I have tried too many solutions but neither them was working,After wasting my half day finally i made a solution.
This code simply show you a DatePickerDialog with Minimum and Maximum date,month and year,whatever you want just modify it.
final Calendar calendar = Calendar.getInstance();
DatePickerDialog dialog = new DatePickerDialog(getActivity(), new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker arg0, int year, int month, int day_of_month) {
calendar.set(Calendar.YEAR, year);
calendar.set(Calendar.MONTH, (month+1));
calendar.set(Calendar.DAY_OF_MONTH, day_of_month);
String myFormat = "dd/MM/yyyy";
SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.getDefault());
your_edittext.setText(sdf.format(calendar.getTime()));
}
},calendar.get(Calendar.YEAR),calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH));
dialog.getDatePicker().setMinDate(calendar.getTimeInMillis());// TODO: used to hide previous date,month and year
calendar.add(Calendar.YEAR, 0);
dialog.getDatePicker().setMaxDate(calendar.getTimeInMillis());// TODO: used to hide future date,month and year
dialog.show();
Output:- Disable previous and future calendar
While Loop is an obsolete structure, I would recommend you to replace "While loop" to "Do While..loop", and you will able to use Exit clause.
check = 0
Do while not rs.EOF
if rs("reg_code") = rcode then
check = 1
Response.Write ("Found")
Exit do
else
rs.MoveNext
end if
Loop
if check = 0 then
Response.Write "Not Found"
end if}
Python Static methods can be created in two ways.
Using staticmethod()
class Arithmetic:
def add(x, y):
return x + y
# create add static method
Arithmetic.add = staticmethod(Arithmetic.add)
print('Result:', Arithmetic.add(15, 10))
Output:
Result: 25
Using @staticmethod
class Arithmetic:
# create add static method
@staticmethod
def add(x, y):
return x + y
print('Result:', Arithmetic.add(15, 10))
Output:
Result: 25
There's a clone snippet here, which you can add to your model which does this:
def clone(self):
new_kwargs = dict([(fld.name, getattr(old, fld.name)) for fld in old._meta.fields if fld.name != old._meta.pk]);
return self.__class__.objects.create(**new_kwargs)
"??".encode('utf-8')
encode
converts a unicode object to a string
object. But here you have invoked it on a string
object (because you don't have the u). So python has to convert the string
to a unicode
object first. So it does the equivalent of
"??".decode().encode('utf-8')
But the decode fails because the string isn't valid ascii. That's why you get a complaint about not being able to decode.
As a simplification to chrfin's response, since Chrome should be on the run path if installed, you could just call:
Process.Start("chrome.exe", "http://www.YourUrl.com");
This seem to work as expected for me, opening a new tab if Chrome is already open.
use jQuery.noConflict()
var j = jQuery.noConflict();
j(document).ready(function(){
j('#datetimepicker').datepicker();
})
Just escape your quotes:
echo "<script>$('#edit_errors').html('<h3><em><font color=\"red\">Please Correct Errors Before Proceeding</font></em></h3>')</script>";
I have just wrestled with this for 3 hours. I credit the answer from Dherik (Bonus material about AMQP) for bringing me within striking distance of MY answer, YMMV.
I registered the JavaTimeModule in my object mapper in my SpringBootApplication like this:
@Bean
@Primary
public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
ObjectMapper objectMapper = builder.build();
objectMapper.registerModule(new JavaTimeModule());
return objectMapper;
}
However my Instants that were coming over the STOMP connection were still not deserialising. Then I realised I had inadvertantly created a MappingJackson2MessageConverter which creates a second ObjectMapper. So I guess the moral of the story is: Are you sure you have adjusted all your ObjectMappers? In my case I replaced the MappingJackson2MessageConverter.objectMapper with the outer version that has the JavaTimeModule registered, and all is well:
@Autowired
ObjectMapper objectMapper;
@Bean
public WebSocketStompClient webSocketStompClient(WebSocketClient webSocketClient,
StompSessionHandler stompSessionHandler) {
WebSocketStompClient webSocketStompClient = new WebSocketStompClient(webSocketClient);
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
converter.setObjectMapper(objectMapper);
webSocketStompClient.setMessageConverter(converter);
webSocketStompClient.connect("http://localhost:8080/myapp", stompSessionHandler);
return webSocketStompClient;
}
input
element, of type file
<input id="fileInput" type="file" />
On your input
change use the FileReader
object and read your input
file property:
$('#fileInput').on('change', function () {
var fileReader = new FileReader();
fileReader.onload = function () {
var data = fileReader.result; // data <-- in this var you have the file data in Base64 format
};
fileReader.readAsDataURL($('#fileInput').prop('files')[0]);
});
FileReader will load your file and in fileReader.result
you have the file data in Base64 format (also the file content-type (MIME), text/plain, image/jpg, etc)
Just in case someone is lost. For both new application or existing ones go to File->Project Structure. Then in Project settings on the left pane select Project for the Java SDK and select Modules for Android SDK.
If you want STDOUT and STDERR both [everything], then the simplest way is:
#!/bin/bash
myprogram >& sample.s
then run it like ./script
, and you will get no output to your terminal. :)
the ">&" means STDERR and STDOUT. the &
also works the same way with a pipe: ./script |& sed
that will send everything to sed
You might find the Semantic Versioning Specification useful.
Tackling this task, I'd first find the number of decimal places in x
, then round y
accordingly. I'd use:
y.toFixed(x.toString().split(".")[1].length);
It should convert x
to a string, split it over the decimal point, find the length of the right part, and then y.toFixed(length)
should round y
based on that length.
With DEBUG = False
in you settings file, you also need ALLOWED_HOST list set up.
Try including ALLOWED_HOST = ['127.0.0.1', 'localhost', 'www.yourdomain.com']
Otherwise you might receive a Bad Request(400) error from django.
preg_replace("/[[:blank:]]+/"," ",$input)
To compare between latest commit of current branch and a tag:
git log --pretty=oneline HEAD...tag
Override all single element
$("*").css("cursor", "progress");
A general tip , if you get confused by any of new JS syntax and how it will compile , you can check babel. For example copying your code in babel and selecting the es2015 preset will give an output like this
handleChange = function handleChange(field) {
return function (e) {
e.preventDefault();
// Do something here
};
};
If you want your table to be dynamic, you will need to use a solution based on the table contents as detailed above. If you simply want to display a smaller table, you can use a container view and embed a UITableViewController in it - the UITableView will be resized according to the container size.
This avoids a lot of calculations and calls to layout.
You can also edit 'hosts' file and create local variation of your domain.
Example
If your real facebook application address is "example.com" you can create "localhost.example.com" (accessible only from your pc) domain in your "hosts" file pointing to "localhost" and run your local website under this domain. You can trick Facebook this way.
if None of those works, try this
@media print {
html, body {
height:100vh;
margin: 0 !important;
padding: 0 !important;
overflow: hidden;
}
}
make sure it is 100vh
I've met this issue before, and there is no pure css solution
That's why i have developped a small library to deal with this issue (among others). The library provides objects to modelize and perform letter-level text rendering. You can for example emulate a text-overflow: ellipsis with an arbitrary limit (not necessary one line)
Read more at http://www.samuelrossille.com/home/jstext.html for screenshot, tutorial, and dowload link.
Just to be pedantic, some systems may not have an 8 bit type. According to Wikipedia:
An implementation is required to define exact-width integer types for N = 8, 16, 32, or 64 if and only if it has any type that meets the requirements. It is not required to define them for any other N, even if it supports the appropriate types.
So uint8_t
isn't guaranteed to exist, though it will for all platforms where 8 bits = 1 byte. Some embedded platforms may be different, but that's getting very rare. Some systems may define char
types to be 16 bits, in which case there probably won't be an 8-bit type of any kind.
Other than that (minor) issue, @Mark Ransom's answer is the best in my opinion. Use the one that most clearly shows what you're using the data for.
Also, I'm assuming you meant uint8_t
(the standard typedef from C99 provided in the stdint.h
header) rather than uint_8
(not part of any standard).
There is a method that is designed for this. Check out process.hrtime(); .
So, I basically put this at the top of my app.
var start = process.hrtime();
var elapsed_time = function(note){
var precision = 3; // 3 decimal places
var elapsed = process.hrtime(start)[1] / 1000000; // divide by a million to get nano to milli
console.log(process.hrtime(start)[0] + " s, " + elapsed.toFixed(precision) + " ms - " + note); // print message + time
start = process.hrtime(); // reset the timer
}
Then I use it to see how long functions take. Here's a basic example that prints the contents of a text file called "output.txt":
var debug = true;
http.createServer(function(request, response) {
if(debug) console.log("----------------------------------");
if(debug) elapsed_time("recieved request");
var send_html = function(err, contents) {
if(debug) elapsed_time("start send_html()");
response.writeHead(200, {'Content-Type': 'text/html' } );
response.end(contents);
if(debug) elapsed_time("end send_html()");
}
if(debug) elapsed_time("start readFile()");
fs.readFile('output.txt', send_html);
if(debug) elapsed_time("end readFile()");
}).listen(8080);
Here's a quick test you can run in a terminal (BASH shell):
for i in {1..100}; do echo $i; curl http://localhost:8080/; done
I prefer another approach if you are using mongo
shell:
First as the another answers: use my_database_name
then:
db.getCollectionNames().map( (name) => ({[name]: db[name].find().toArray().length}) )
This query will show you something like this:
[
{
"agreements" : 60
},
{
"libraries" : 45
},
{
"templates" : 9
},
{
"users" : 19
}
]
You can use similar approach with db.getCollectionInfos()
it is pretty useful if you have so much data & helpful as well.
That very well may be a false positive. Like the warning message says, it is common for a capture to start in the middle of a tcp session. In those cases it does not have that information. If you are really missing acks then it is time to start looking upstream from your host for where they are disappearing. It is possible that tshark can not keep up with the data and so it is dropping some metrics. At the end of your capture it will tell you if the "kernel dropped packet" and how many. By default tshark disables dns lookup, tcpdump does not. If you use tcpdump you need to pass in the "-n" switch. If you are having a disk IO issue then you can do something like write to memory /dev/shm. BUT be careful because if your captures get very large then you can cause your machine to start swapping.
My bet is that you have some very long running tcp sessions and when you start your capture you are simply missing some parts of the tcp session due to that. Having said that, here are some of the things that I have seen cause duplicate/missing acks.
This worked for me.
create extension IF NOT EXISTS "uuid-ossp" schema pg_catalog version "1.1";
make sure the extension should by on pg_catalog and not in your schema...
This is copied from above, but condensed slightly and re-written in semantic terms. Note: #Container
has display: flex;
and flex-direction: column;
, while the columns have flex: 3;
and flex: 2;
(where "One value, unitless number" determines the flex-grow
property) per MDN flex
docs.
#Container {_x000D_
display: flex;_x000D_
flex-direction: column;_x000D_
height: 600px;_x000D_
width: 580px;_x000D_
}_x000D_
_x000D_
.Content {_x000D_
display: flex;_x000D_
flex: 1;_x000D_
}_x000D_
_x000D_
#Detail {_x000D_
flex: 3;_x000D_
background-color: lime;_x000D_
}_x000D_
_x000D_
#ThumbnailContainer {_x000D_
flex: 2;_x000D_
background-color: black;_x000D_
}
_x000D_
<div id="Container">_x000D_
<div class="Content">_x000D_
<div id="Detail"></div>_x000D_
<div id="ThumbnailContainer"></div>_x000D_
</div>_x000D_
</div>
_x000D_
Create a function that uses string replace
function convert(str)
{
str = str.replace(/&/g, "&");
str = str.replace(/>/g, ">");
str = str.replace(/</g, "<");
str = str.replace(/"/g, """);
str = str.replace(/'/g, "'");
return str;
}
Simply restarting Visual Studio worked for me.
I just had a very similar issues with gradle builds / adding .jar library. I got it working by a combination of :
compile fileTree(dir: 'libs', include: '*.jar')}
BUT more importantly and annoyingly, only hours after I get it working, Android Studio have just released 0.3.7, which claims to have solved a lot of gradle issues such as adding .jar libraries
http://tools.android.com/recent
Hope this helps people!
Related to your question, you may want to consider limiting the amount of RAM SQL Server has access to if you are using it in a shared environment, i.e., on a server that hosts more than just SQL Server:
This will help alleviate SQL Server from consuming all the server's RAM.
I am now running OS Big Sur. xcode-select --install
, and sudo xcode-select --reset
did not resolve my issue, neither did the recommended subsequent softwareupdate --install -a
command. For good measure, I tried the recommended download from Apple Downloads, but the Command Line Tools downloads available there are not compatible with my OS.
I upvoted the fix that resolved for me, sudo xcode-select --switch /Library/Developer/CommandLineTools/
and added this post for environment context.
Elastic Beanstalk can bind a single EC2 keypair to an instance profile. A manual solution to have multiple users ssh into EBS is to add their public keys in authorized_keys file.
If it's in a class, you can use getattr:
class MyClass(object):
def install(self):
print "In install"
method_name = 'install' # set by the command line options
my_cls = MyClass()
method = None
try:
method = getattr(my_cls, method_name)
except AttributeError:
raise NotImplementedError("Class `{}` does not implement `{}`".format(my_cls.__class__.__name__, method_name))
method()
or if it's a function:
def install():
print "In install"
method_name = 'install' # set by the command line options
possibles = globals().copy()
possibles.update(locals())
method = possibles.get(method_name)
if not method:
raise NotImplementedError("Method %s not implemented" % method_name)
method()
in your code add:
System.getProperty("WSNSHELL_HOME")
Modify or add value property from maven command:
mvn clean test -DargLine=-DWSNSHELL_HOME=yourvalue
If you want to run it in Eclipse, add VM arguments in your Debug/Run configurations
-DWSNSHELL_HOME=yourvalue
you don't need to modify the POM
Ok, this is best solution for me. Bootstrap includes mobile-first fluid grid system that appropriately scales up to 12 columns as the device or viewport size increases. So this worked perfectly on every browser and device:
<div class="row">
<div class="col-lg-4"></div>
<div class="col-lg-4">
<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><!-- /input-group -->
</div><!-- /.col-lg-4 -->
<div class="col-lg-4"></div>
</div><!-- /.row -->
It means 4 + 4 + 4 =12... so second div will be in the middle that way.
The following code assumes:
<div>
and no other nodeswhite-space
property set to pre
If you need a more general approach that will work content with nested elements, try this answer:
https://stackoverflow.com/a/4812022/96100
Code:
function getCaretPosition(editableDiv) {_x000D_
var caretPos = 0,_x000D_
sel, range;_x000D_
if (window.getSelection) {_x000D_
sel = window.getSelection();_x000D_
if (sel.rangeCount) {_x000D_
range = sel.getRangeAt(0);_x000D_
if (range.commonAncestorContainer.parentNode == editableDiv) {_x000D_
caretPos = range.endOffset;_x000D_
}_x000D_
}_x000D_
} else if (document.selection && document.selection.createRange) {_x000D_
range = document.selection.createRange();_x000D_
if (range.parentElement() == editableDiv) {_x000D_
var tempEl = document.createElement("span");_x000D_
editableDiv.insertBefore(tempEl, editableDiv.firstChild);_x000D_
var tempRange = range.duplicate();_x000D_
tempRange.moveToElementText(tempEl);_x000D_
tempRange.setEndPoint("EndToEnd", range);_x000D_
caretPos = tempRange.text.length;_x000D_
}_x000D_
}_x000D_
return caretPos;_x000D_
}
_x000D_
#caretposition {_x000D_
font-weight: bold;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
<div id="contentbox" contenteditable="true">Click me and move cursor with keys or mouse</div>_x000D_
<div id="caretposition">0</div>_x000D_
<script>_x000D_
var update = function() {_x000D_
$('#caretposition').html(getCaretPosition(this));_x000D_
};_x000D_
$('#contentbox').on("mousedown mouseup keydown keyup", update);_x000D_
</script>
_x000D_
If you have more numbers or if you intend to add new test numbers for CASE
then you can use a more flexible approach:
DECLARE @Numbers TABLE
(
Number VARCHAR(50) PRIMARY KEY
,Class TINYINT NOT NULL
);
INSERT @Numbers
VALUES ('1121231',1);
INSERT @Numbers
VALUES ('31242323',1);
INSERT @Numbers
VALUES ('234523',2);
INSERT @Numbers
VALUES ('2342423',2);
SELECT c.*, n.Class
FROM tblClient c
LEFT OUTER JOIN @Numbers n ON c.Number = n.Number;
Also, instead of table variable you can use a regular table.
The easiest would be to use a regular expression with g
flag to replace all instances:
str.replace(/foo/g, "bar")
This will replace all occurrences of foo
with bar
in the string str
. If you just have a string, you can convert it to a RegExp object like this:
var pattern = "foobar",
re = new RegExp(pattern, "g");
Git has two types of branches: local
and remote
. To use git pull
and git push
as you'd like, you have to tell your local branch (my_test
) which remote branch it's tracking. In typical Git fashion this can be done in both the config file and with commands.
Commands
Make sure you're on your master
branch with
1)git checkout master
then create the new branch with
2)git branch --track my_test origin/my_test
and check it out with
3)git checkout my_test
.
You can then push
and pull
without specifying which local and remote.
However if you've already created the branch then you can use the -u
switch to tell git's push
and pull
you'd like to use the specified local and remote branches from now on, like so:
git pull -u my_test origin/my_test
git push -u my_test origin/my_test
Config
The commands to setup remote branch tracking are fairly straight forward but I'm listing the config way as well as I find it easier if I'm setting up a bunch of tracking branches. Using your favourite editor open up your project's .git/config
and add the following to the bottom.
[remote "origin"]
url = [email protected]:username/repo.git
fetch = +refs/heads/*:refs/remotes/origin/*
[branch "my_test"]
remote = origin
merge = refs/heads/my_test
This specifies a remote called origin
, in this case a GitHub style one, and then tells the branch my_test
to use it as it's remote.
You can find something very similar to this in the config after running the commands above.
Some useful resources:
This might help: http://jsfiddle.net/danielredwood/gBw9j/
Basically $(this).fadeOut().next().fadeIn();
is what you require
To install Docker for Mac with homebrew:
brew cask install docker
To install the command line completion:
brew install bash-completion
brew install docker-completion
brew install docker-compose-completion
brew install docker-machine-completion
You can try with this
nFilter.style.cssText = 'width:330px;float:left;';
That should do it for you.
There is no such thing. It looks like you want something like "here documents" in Perl and the shells, but Python doesn't have that.
Using raw strings or multiline strings only means that there are fewer things to worry about. If you use a raw string then you still have to work around a terminal "\" and with any string solution you'll have to worry about the closing ", ', ''' or """ if it is included in your data.
That is, there's no way to have the string
' ''' """ " \
properly stored in any Python string literal without internal escaping of some sort.
If your array is not initialized then it contains randoms values and cannot be checked !
To initialize your array with 0 values:
int array[5] = {0};
Then you can check if the value is 0:
array[4] == 0;
When you compare to NULL, it compares to 0 as the NULL is defined as integer value 0 or 0L.
If you have an array of pointers, better use the nullptr
value to check:
char* array[5] = {nullptr}; // we defined an array of char*, initialized to nullptr
if (array[4] == nullptr)
// do something
I think your return string data is very long. so the JSON format has been corrupted. You should change the max size for JSON data in this way :
Open the Web.Config file and paste these lines into the configuration section
<system.web.extensions>
<scripting>
<webServices>
<jsonSerialization maxJsonLength="50000000"/>
</webServices>
</scripting>
</system.web.extensions>
You can assign an iterable to side_effect
, and the mock will return the next value in the sequence each time it is called:
>>> from unittest.mock import Mock
>>> m = Mock()
>>> m.side_effect = ['foo', 'bar', 'baz']
>>> m()
'foo'
>>> m()
'bar'
>>> m()
'baz'
Quoting the Mock()
documentation:
If side_effect is an iterable then each call to the mock will return the next value from the iterable.
You can use a bind variable at the SQLPlus level to do this. Of course you have little control over the formatting of the output.
VAR x REFCURSOR;
EXEC GetGrantListByPI(args, :x);
PRINT x;
The task can be solved using the following piece of code, [0:28] being interval where the name is being held, while [29:34] contains the actual pid.
import os
program_pid = 0
program_name = "notepad.exe"
task_manager_lines = os.popen("tasklist").readlines()
for line in task_manager_lines:
try:
if str(line[0:28]) == program_name + (28 - len(program_name) * ' ': #so it includes the whitespaces
program_pid = int(line[29:34])
break
except:
pass
print(program_pid)
This worked for me,
image: {
width: 200,
height:220,
resizeMode: 'cover'
}
You can also set your resizeMode: 'contain'
. I defined the style for my network images as:
<Image
source={{uri:rowData.banner_path}}
style={{
width: 80,
height: 80,
marginRight: 10,
marginBottom: 12,
marginTop: 12}}
/>
If you are using flex, use it in all the components of parent View, else it is redundant with height: 200, width: 220
.
You should be able to set the className property of the element. You could do a += to append it.
You want to use %d
or %i
for integers. %@
is used for objects.
It's worth noting, though, that the following code will accomplish the same task and is much clearer.
label.intValue = count;
Click menu option View > Appearance > Move to Side Bar Right
. Once side bar moves to right, option "Move Side Bar Right" changes to "Move to Side Bar Left".
From your comments,
the tax amount rounded to the 4th decimal and the total price rounded to the 2nd decimal.
Using the example in the comments, I might foresee a case where you have 400 sales of $1.47. Sales-before-tax would be $588.00, and sales-after-tax would sum to $636.51 (accounting for $48.51 in taxes). However, the sales tax of $0.121275 * 400 would be $48.52.
This was one way, albeit contrived, to force a penny's difference.
I would note that there are payroll tax forms from the IRS where they do not care if an error is below a certain amount (if memory serves, $0.50).
Your big question is: does anybody care if certain reports are off by a penny? If the your specs say: yes, be accurate to the penny, then you should go through the effort to convert to DECIMAL.
I have worked at a bank where a one-penny error was reported as a software defect. I tried (in vain) to cite the software specifications, which did not require this degree of precision for this application. (It was performing many chained multiplications.) I also pointed to the user acceptance test. (The software was verified and accepted.)
Alas, sometimes you just have to make the conversion. But I would encourage you to A) make sure that it's important to someone and then B) write tests to show that your reports are accurate to the degree specified.
The way you can exclude a destination directory while using the /mir is by making sure the destination directory also exists on the source. I went into my source drive and created blank directories with the same name as on the destination, and then added that directory name to the /xd. It successfully mirrored everything while excluding the directory on the source, thereby leaving the directory on the destination intact.
Recently it became possible (but with an odd workaround).
To do this you must first create text with the desired hyperlink in an editor that supports rich text formatting. This can be an advanced text editor, web browser, email client, web-development IDE, etc.). Then copypaste the text from the editor or rendered HTML from browser (or other). E.g. in the example below I copypasted the head of this StackOverflow page. As you may see, the hyperlink have been copied correctly and is clickable in the message (checked on Mac Desktop, browser, and iOS apps).
On Mac
I was able to compose the desired link in the native Pages app as shown below. When you are done, copypaste your text into Slack app. This is the probably easiest way on Mac OS.
On Windows
I have a strong suspicion that MS Word will do the same trick, but unfortunately I don't have an installed instance to check.
Universal
Create text in an online editor, such as Google Documents. Use Insert -> Link, modify the text and web URL, then copypaste into Slack.
I was hoping to find similar information for Mac OS X as well. Since it wasn't here, I went out and dug it up myself. Here are some of the things I found. If anyone has any other suggestions, I'd love to hear them.
This one is tricky on Mac OS X because it doesn't use a preset swap partition or file like Linux. Here's an entry from Apple's documentation:
Note: Unlike most Unix-based operating systems, Mac OS X does not use a preallocated swap partition for virtual memory. Instead, it uses all of the available space on the machine’s boot partition.
So, if you want to know how much virtual memory is still available, you need to get the size of the root partition. You can do that like this:
struct statfs stats;
if (0 == statfs("/", &stats))
{
myFreeSwap = (uint64_t)stats.f_bsize * stats.f_bfree;
}
Calling systcl with the "vm.swapusage" key provides interesting information about swap usage:
sysctl -n vm.swapusage
vm.swapusage: total = 3072.00M used = 2511.78M free = 560.22M (encrypted)
Not that the total swap usage displayed here can change if more swap is needed as explained in the section above. So the total is actually the current swap total. In C++, this data can be queried this way:
xsw_usage vmusage = {0};
size_t size = sizeof(vmusage);
if( sysctlbyname("vm.swapusage", &vmusage, &size, NULL, 0)!=0 )
{
perror( "unable to get swap usage by calling sysctlbyname(\"vm.swapusage\",...)" );
}
Note that the "xsw_usage", declared in sysctl.h, seems not documented and I suspect there there is a more portable way of accessing these values.
You can get statistics about your current process using the task_info
function. That includes the current resident size of your process and the current virtual size.
#include<mach/mach.h>
struct task_basic_info t_info;
mach_msg_type_number_t t_info_count = TASK_BASIC_INFO_COUNT;
if (KERN_SUCCESS != task_info(mach_task_self(),
TASK_BASIC_INFO, (task_info_t)&t_info,
&t_info_count))
{
return -1;
}
// resident size is in t_info.resident_size;
// virtual size is in t_info.virtual_size;
The amount of physical RAM available in your system is available using the sysctl
system function like this:
#include <sys/types.h>
#include <sys/sysctl.h>
...
int mib[2];
int64_t physical_memory;
mib[0] = CTL_HW;
mib[1] = HW_MEMSIZE;
length = sizeof(int64_t);
sysctl(mib, 2, &physical_memory, &length, NULL, 0);
You can get general memory statistics from the host_statistics
system function.
#include <mach/vm_statistics.h>
#include <mach/mach_types.h>
#include <mach/mach_init.h>
#include <mach/mach_host.h>
int main(int argc, const char * argv[]) {
vm_size_t page_size;
mach_port_t mach_port;
mach_msg_type_number_t count;
vm_statistics64_data_t vm_stats;
mach_port = mach_host_self();
count = sizeof(vm_stats) / sizeof(natural_t);
if (KERN_SUCCESS == host_page_size(mach_port, &page_size) &&
KERN_SUCCESS == host_statistics64(mach_port, HOST_VM_INFO,
(host_info64_t)&vm_stats, &count))
{
long long free_memory = (int64_t)vm_stats.free_count * (int64_t)page_size;
long long used_memory = ((int64_t)vm_stats.active_count +
(int64_t)vm_stats.inactive_count +
(int64_t)vm_stats.wire_count) * (int64_t)page_size;
printf("free memory: %lld\nused memory: %lld\n", free_memory, used_memory);
}
return 0;
}
One thing to note here are that there are five types of memory pages in Mac OS X. They are as follows:
It is good to note that just because Mac OS X may show very little actual free memory at times that it may not be a good indication of how much is ready to be used on short notice.
See the "Virtual Memory Currently Used by my Process" above. The same code applies.
Here is my option to Edit the project file without the need to Unload the project:
Navigate to the Project which you want to edit inside the Solution folders and right-click on it.
That is it!
You will see the *.csproj
file opened inside Visual Studio Editor.
After you can switch back to a Solution/Project view (see step 1).
Jerryf's answer is fine, except for one flaw.
The onload event should be set before the src. Sometimes the src can be loaded instantly and never fire the onload event.
(Like Totty.js pointed out.)
var canvas = document.getElementById("c");
var ctx = canvas.getContext("2d");
var image = new Image();
image.onload = function() {
ctx.drawImage(image, 0, 0);
};
image.src = "data:image/ png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAIAAAACDbGyAAAAAXNSR0IArs4c6QAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9oMCRUiMrIBQVkAAAAZdEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIEdJTVBXgQ4XAAAADElEQVQI12NgoC4AAABQAAEiE+h1AAAAAElFTkSuQmCC";
Perhaps its more meaningful to think of a CTE as a substitute for a view used for a single query. But doesn't require the overhead, metadata, or persistence of a formal view. Very useful when you need to:
Here's a cut-and-paste example to play with:
WITH [cte_example] AS (
SELECT 1 AS [myNum], 'a num' as [label]
UNION ALL
SELECT [myNum]+1,[label]
FROM [cte_example]
WHERE [myNum] <= 10
)
SELECT * FROM [cte_example]
UNION
SELECT SUM([myNum]), 'sum_all' FROM [cte_example]
UNION
SELECT SUM([myNum]), 'sum_odd' FROM [cte_example] WHERE [myNum] % 2 = 1
UNION
SELECT SUM([myNum]), 'sum_even' FROM [cte_example] WHERE [myNum] % 2 = 0;
Enjoy
I prefer to make the flat style appearance: https://stackoverflow.com/a/25192153/5660876
tabControl1.Appearance = TabAppearance.FlatButtons;
tabControl1.ItemSize = new Size(0, 1);
tabControl1.SizeMode = TabSizeMode.Fixed;
But there is a pixel that is shown at every tabPage, so if you delete all the text of every tabpage, then the tabs become invisible perfectly at run-time.
foreach (TabPage tab in tabControl1.TabPages)
{
tab.Text = "";
}
After that i use a treeview, to change through the tabpages... clicking on the nodes.
Mesos and Kubernetes both are container orchestration tools.
When you say "Google Kubernetes"?
Google Kubernetes Engine provides a managed environment for deploying, managing, and scaling your containerized applications using Google infrastructure.
Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications.” Kubernetes was built by Google based on their experience running containers in production over the last decade.
The major components in a Kubernetes cluster are:
pods — a way to group containers together replication controllers — a way to handle the lifecycle of containers labels — a way to find and query containers, and services — a set of containers performing a common function
Mesos is an open-source cluster management project by Apache, designed to scale to very large clusters, from hundreds to thousands of hosts. Mesos supports diverse kinds of workloads such as Hadoop tasks, cloud native applications etc. It gives you the ability to run both containerized, and non-containerized workloads in a distributed manner.
It was initially written as a research project at Berkeley and was later adopted by Twitter as an answer to Google’s Borg (Kubernetes’ predecessor). To combat its high degree of complexity (Mesos is super complicated and hard to manage!), Mesosphere came into the picture to try and make Mesos into something regular human beings can use.
Mesosphere supplied the superb Marathon “plugin” to Mesos, which provides users with an easy way to manage container orchestration over Mesos.
In mid-2016, DC/OS (Data Center Operating System) — an open source project backed by Mesosphere — was introduced, which simplifies Mesos even further and allows you to deploy your own Mesos cluster, with Marathon, in a matter of minutes.
Now, if we compare kubernetes and Mesos(DC/OS)
kubernetes is a cluster manager for containers while mesos is a distributed system kernel that will make your cluster look like one giant computer system to all supported frameworks and apps that are built to be run on mesos.
Mesos was born for a world where you own a lot of physical resources to create a big static computing cluster. The great thing about it is that lots of modern scalable data processing application runs very well on Mesos (Hadoop, Kafka, Spark) and it is nice because you can run them all on the same basic resource pool, along with your new age container packaged apps.
Mesos cluster also runs alongside the Marathon cluster. Marathon, created by Mesosphere, is designed to start, monitor and scale long-running applications, including cloud native apps. Clients interact with Marathon through a REST API.
Also, a point to be noted is that you can actually run Kubernetes on top of DC/OS and schedule containers with it instead of using Marathon. This implies the biggest difference of all — DC/OS, as it name suggests, is more similar to an operating system rather than an orchestration framework. You can run non-containerized, stateful workloads on it. Container scheduling is handled by the Marathon.
If you want to match the two words in either order, use:
gci C:\Logs| select-string -pattern '(VendorEnquiry.*Failed)|(Failed.*VendorEnquiry)'
If Failed always comes after VendorEnquiry on the line, just use:
gci C:\Logs| select-string -pattern '(VendorEnquiry.*Failed)'
If you have names of the element and not id we can achieve the undefined check on all text elements (for example) as below and fill them with a default value say 0.0:
var aFieldsCannotBeNull=['ast_chkacc_bwr','ast_savacc_bwr'];
jQuery.each(aFieldsCannotBeNull,function(nShowIndex,sShowKey) {
var $_oField = jQuery("input[name='"+sShowKey+"']");
if($_oField.val().trim().length === 0){
$_oField.val('0.0')
}
})
Iterations
Method 1: forEach
method
messages.forEach(function(message) {
console.log(message);
}
Method 2: for..of
method
for(let message of messages){
console.log(message);
}
Note: This method might not work with objects, such as:
let obj = { a: 'foo', b: { c: 'bar', d: 'daz' }, e: 'qux' }
Method 2: for..in
method
for(let key in messages){
console.log(messages[key]);
}
@echo off
Set filename="C:\Documents and Settings\All Users\Desktop\Dostips.cmd"
call :expand %filename%
:expand
set filename=%~nx1
echo The name of the file is %filename%
set folder=%~dp1
echo It's path is %folder%
you can use raiserror
. Read more details here
--from MSDN
BEGIN TRY
-- RAISERROR with severity 11-19 will cause execution to
-- jump to the CATCH block.
RAISERROR ('Error raised in TRY block.', -- Message text.
16, -- Severity.
1 -- State.
);
END TRY
BEGIN CATCH
DECLARE @ErrorMessage NVARCHAR(4000);
DECLARE @ErrorSeverity INT;
DECLARE @ErrorState INT;
SELECT
@ErrorMessage = ERROR_MESSAGE(),
@ErrorSeverity = ERROR_SEVERITY(),
@ErrorState = ERROR_STATE();
-- Use RAISERROR inside the CATCH block to return error
-- information about the original error that caused
-- execution to jump to the CATCH block.
RAISERROR (@ErrorMessage, -- Message text.
@ErrorSeverity, -- Severity.
@ErrorState -- State.
);
END CATCH;
EDIT
If you are using SQL Server 2012+ you can use throw
clause. Here are the details.
You could use:
declare @foo as nvarchar(25)
select @foo = 'bar'
select @foo
MinGW uses a fairly old version of GCC (3.4.5, I believe), and hasn't been updated in a while. If you're already comfortable with the GCC toolset and just looking to get your feet wet in Windows programming, this may be a good option for you. There are lots of great IDEs available that use this compiler.
Edit: Apparently I was wrong; that's what I get for talking about something I know very little about. Tauran points out that there is a project that aims to provide the MinGW toolkit with the current version of GCC. You can download it from their website.
However, I'm not sure that I can recommend it for serious Windows development. If you're not a idealistic fanboy who can't stomach the notion of ever using Microsoft software, I highly recommend investigating Visual Studio, which comes bundled with Microsoft's C/C++ compiler. The Express version (which includes the same compiler as all the paid-for editions) is absolutely free for download. In addition to the compiler, Visual Studio also provides a world-class IDE that makes developing Windows-specific applications much easier. Yes, detractors will ramble on about the fact that it's not fully standards-compliant, but such is the world of writing Windows applications. They're never going to be truly portable once you include windows.h
, so most of the idealistic dedication just ends up being a waste of time.
Use this function:
inline bool ends_with(std::string const & value, std::string const & ending)
{
if (ending.size() > value.size()) return false;
return std::equal(ending.rbegin(), ending.rend(), value.rbegin());
}
From the homepage of the language
Sass has two syntaxes. The new main syntax (as of Sass 3) is known as “SCSS” (for “Sassy CSS”), and is a superset of CSS3’s syntax. This means that every valid CSS3 stylesheet is valid SCSS as well. SCSS files use the extension .scss.
The second, older syntax is known as the indented syntax (or just “Sass”). Inspired by Haml’s terseness, it’s intended for people who prefer conciseness over similarity to CSS. Instead of brackets and semicolons, it uses the indentation of lines to specify blocks. Although no longer the primary syntax, the indented syntax will continue to be supported. Files in the indented syntax use the extension .sass.
SASS is an interpreted language that spits out CSS. The structure of Sass looks like CSS (remotely), but it seems to me that the description is a bit misleading; it's not a replacement for CSS, or an extension. It's an interpreter which spits out CSS in the end, so Sass still has the limitations of normal CSS, but it masks them with simple code.
$time = strtotime(date('2016-02-03 12:00:00'));
echo date("H:i:s",strtotime("-30 minutes", $time));
Recently I bumped into a local company's Notes 6.5 system and found out the webmail would show unidentifiable characters on a non-Zhongwen localed Windows installation. Have dug for several weeks online, figured it out just few minutes ago:
In Java properties, add the following string to Runtime Parameters
-Dfile.encoding=MS950 -Duser.language=zh -Duser.country=TW -Dsun.jnu.encoding=MS950
UTF-8 setting would not work in this case.
XAML ListBox Scroller - Windows 10(UWP)
<Style TargetType="ListBox">
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Visible"/>
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Visible"/>
</Style>
I'm trying to understand monads as well. It's my version:
Monads are about making abstractions about repetitive things. Firstly, monad itself is a typed interface (like an abstract generic class), that has two functions: bind and return that have defined signatures. And then, we can create concrete monads based on that abstract monad, of course with specific implementations of bind and return. Additionally, bind and return must fulfill a few invariants in order to make it possible to compose/chain concrete monads.
Why create the monad concept while we have interfaces, types, classes and other tools to create abstractions? Because monads give more: they enforce rethinking problems in a way that enables to compose data without any boilerplate.
You need to close the input element with />
at the end. In React, we have to close every element. Your code should be:
<input id="icon_prefix" type="text" class="validate/">
To help with not forgetting to reenable drawing:
public static void SuspendDrawing(Control control, Action action)
{
SendMessage(control.Handle, WM_SETREDRAW, false, 0);
action();
SendMessage(control.Handle, WM_SETREDRAW, true, 0);
control.Refresh();
}
usage:
SuspendDrawing(myControl, () =>
{
somemethod();
});
This did the trick for me. It captures all the stdout output from the subprocess(For python 3.8):
from subprocess import check_output, STDOUT
cmd = "Your Command goes here"
try:
cmd_stdout = check_output(cmd, stderr=STDOUT, shell=True).decode()
except Exception as e:
print(e.output.decode()) # print out the stdout messages up to the exception
print(e) # To print out the exception message
Only clearing Visual Studio cache helped me
I just wrote a parser that I called Yay! (Yaml ain't Yamlesque!) which parses Yamlesque, a small subset of YAML. So, if you're looking for a 100% compliant YAML parser for Bash then this isn't it. However, to quote the OP, if you want a structured configuration file which is as easy as possible for a non-technical user to edit that is YAML-like, this may be of interest.
It's inspred by the earlier answer but writes associative arrays (yes, it requires Bash 4.x) instead of basic variables. It does so in a way that allows the data to be parsed without prior knowledge of the keys so that data-driven code can be written.
As well as the key/value array elements, each array has a keys
array containing a list of key names, a children
array containing names of child arrays and a parent
key that refers to its parent.
This is an example of Yamlesque:
root_key1: this is value one
root_key2: "this is value two"
drink:
state: liquid
coffee:
best_served: hot
colour: brown
orange_juice:
best_served: cold
colour: orange
food:
state: solid
apple_pie:
best_served: warm
root_key_3: this is value three
Here is an example showing how to use it:
#!/bin/bash
# An example showing how to use Yay
. /usr/lib/yay
# helper to get array value at key
value() { eval echo \${$1[$2]}; }
# print a data collection
print_collection() {
for k in $(value $1 keys)
do
echo "$2$k = $(value $1 $k)"
done
for c in $(value $1 children)
do
echo -e "$2$c\n$2{"
print_collection $c " $2"
echo "$2}"
done
}
yay example
print_collection example
which outputs:
root_key1 = this is value one
root_key2 = this is value two
root_key_3 = this is value three
example_drink
{
state = liquid
example_coffee
{
best_served = hot
colour = brown
}
example_orange_juice
{
best_served = cold
colour = orange
}
}
example_food
{
state = solid
example_apple_pie
{
best_served = warm
}
}
And here is the parser:
yay_parse() {
# find input file
for f in "$1" "$1.yay" "$1.yml"
do
[[ -f "$f" ]] && input="$f" && break
done
[[ -z "$input" ]] && exit 1
# use given dataset prefix or imply from file name
[[ -n "$2" ]] && local prefix="$2" || {
local prefix=$(basename "$input"); prefix=${prefix%.*}
}
echo "declare -g -A $prefix;"
local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034')
sed -n -e "s|^\($s\)\($w\)$s:$s\"\(.*\)\"$s\$|\1$fs\2$fs\3|p" \
-e "s|^\($s\)\($w\)$s:$s\(.*\)$s\$|\1$fs\2$fs\3|p" "$input" |
awk -F$fs '{
indent = length($1)/2;
key = $2;
value = $3;
# No prefix or parent for the top level (indent zero)
root_prefix = "'$prefix'_";
if (indent ==0 ) {
prefix = ""; parent_key = "'$prefix'";
} else {
prefix = root_prefix; parent_key = keys[indent-1];
}
keys[indent] = key;
# remove keys left behind if prior row was indented more than this row
for (i in keys) {if (i > indent) {delete keys[i]}}
if (length(value) > 0) {
# value
printf("%s%s[%s]=\"%s\";\n", prefix, parent_key , key, value);
printf("%s%s[keys]+=\" %s\";\n", prefix, parent_key , key);
} else {
# collection
printf("%s%s[children]+=\" %s%s\";\n", prefix, parent_key , root_prefix, key);
printf("declare -g -A %s%s;\n", root_prefix, key);
printf("%s%s[parent]=\"%s%s\";\n", root_prefix, key, prefix, parent_key);
}
}'
}
# helper to load yay data file
yay() { eval $(yay_parse "$@"); }
There is some documentation in the linked source file and below is a short explanation of what the code does.
The yay_parse
function first locates the input
file or exits with an exit status of 1. Next, it determines the dataset prefix
, either explicitly specified or derived from the file name.
It writes valid bash
commands to its standard output that, if executed, define arrays representing the contents of the input data file. The first of these defines the top-level array:
echo "declare -g -A $prefix;"
Note that array declarations are associative (-A
) which is a feature of Bash version 4. Declarations are also global (-g
) so they can be executed in a function but be available to the global scope like the yay
helper:
yay() { eval $(yay_parse "$@"); }
The input data is initially processed with sed
. It drops lines that don't match the Yamlesque format specification before delimiting the valid Yamlesque fields with an ASCII File Separator character and removing any double-quotes surrounding the value field.
local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034')
sed -n -e "s|^\($s\)\($w\)$s:$s\"\(.*\)\"$s\$|\1$fs\2$fs\3|p" \
-e "s|^\($s\)\($w\)$s:$s\(.*\)$s\$|\1$fs\2$fs\3|p" "$input" |
The two expressions are similar; they differ only because the first one picks out quoted values where as the second one picks out unquoted ones.
The File Separator (28/hex 12/octal 034) is used because, as a non-printable character, it is unlikely to be in the input data.
The result is piped into awk
which processes its input one line at a time. It uses the FS character to assign each field to a variable:
indent = length($1)/2;
key = $2;
value = $3;
All lines have an indent (possibly zero) and a key but they don't all have a value. It computes an indent level for the line dividing the length of the first field, which contains the leading whitespace, by two. The top level items without any indent are at indent level zero.
Next, it works out what prefix
to use for the current item. This is what gets added to a key name to make an array name. There's a root_prefix
for the top-level array which is defined as the data set name and an underscore:
root_prefix = "'$prefix'_";
if (indent ==0 ) {
prefix = ""; parent_key = "'$prefix'";
} else {
prefix = root_prefix; parent_key = keys[indent-1];
}
The parent_key
is the key at the indent level above the current line's indent level and represents the collection that the current line is part of. The collection's key/value pairs will be stored in an array with its name defined as the concatenation of the prefix
and parent_key
.
For the top level (indent level zero) the data set prefix is used as the parent key so it has no prefix (it's set to ""
). All other arrays are prefixed with the root prefix.
Next, the current key is inserted into an (awk-internal) array containing the keys. This array persists throughout the whole awk session and therefore contains keys inserted by prior lines. The key is inserted into the array using its indent as the array index.
keys[indent] = key;
Because this array contains keys from previous lines, any keys with an indent level grater than the current line's indent level are removed:
for (i in keys) {if (i > indent) {delete keys[i]}}
This leaves the keys array containing the key-chain from the root at indent level 0 to the current line. It removes stale keys that remain when the prior line was indented deeper than the current line.
The final section outputs the bash
commands: an input line without a value starts a new indent level (a collection in YAML parlance) and an input line with a value adds a key to the current collection.
The collection's name is the concatenation of the current line's prefix
and parent_key
.
When a key has a value, a key with that value is assigned to the current collection like this:
printf("%s%s[%s]=\"%s\";\n", prefix, parent_key , key, value);
printf("%s%s[keys]+=\" %s\";\n", prefix, parent_key , key);
The first statement outputs the command to assign the value to an associative array element named after the key and the second one outputs the command to add the key to the collection's space-delimited keys
list:
<current_collection>[<key>]="<value>";
<current_collection>[keys]+=" <key>";
When a key doesn't have a value, a new collection is started like this:
printf("%s%s[children]+=\" %s%s\";\n", prefix, parent_key , root_prefix, key);
printf("declare -g -A %s%s;\n", root_prefix, key);
The first statement outputs the command to add the new collection to the current's collection's space-delimited children
list and the second one outputs the command to declare a new associative array for the new collection:
<current_collection>[children]+=" <new_collection>"
declare -g -A <new_collection>;
All of the output from yay_parse
can be parsed as bash commands by the bash eval
or source
built-in commands.
You can do :
1) javac -cp /path/to/jar/file Myprogram.java
2) java -cp .:/path/to/jar/file Myprogram
So, lets suppose your current working directory
in terminal is src/Report/
javac -cp src/external/myfile.jar Reporter.java
java -cp .:src/external/myfile.jar Reporter
Take a look here to setup Classpath
Simple answer. Use the Angular CLI and issue the
ng build
command in the root directory of your project. The site will be created in the dist directory and you can deploy that to any web server.
This will build for test, if you have production settings in your app you should use
ng build --prod
This will build the project in the dist
directory and this can be pushed to the server.
Much has happened since I first posted this answer. The CLI is finally at a 1.0.0 so following this guide go upgrade your project should happen before you try to build. https://github.com/angular/angular-cli/wiki/stories-rc-update
it should works at least in pyspark 2.4
tdata = tdata.withColumn("Age", when((tdata.Age == "") & (tdata.Survived == "0") , "NewValue").otherwise(tdata.Age))
Gson is also good for it: http://code.google.com/p/google-gson/
" Gson is a Java library that can be used to convert Java Objects into their JSON representation. It can also be used to convert a JSON string to an equivalent Java object. Gson can work with arbitrary Java objects including pre-existing objects that you do not have source-code of. "
Check the API examples: https://sites.google.com/site/gson/gson-user-guide#TOC-Overview More examples: http://www.mkyong.com/java/how-do-convert-java-object-to-from-json-format-gson-api/
Well considering there's no overhead difference between a varchar(30) and a varchar(100) if you're only storing 20 characters in each, err on the side of caution and just make it 50.
Heres a good one with NSRegularExpression that's working for me.
[text rangeOfString:@"^.+@.+\\..{2,}$" options:NSRegularExpressionSearch].location != NSNotFound;
You can insert whatever regex you want but I like being able to do it in one line.
I agree with the previous poster that changing the color by className
is a prettier approach. My argument however is that a className
can be regarded as a definition of "why you want the background to be this or that color."
For instance, making it red is not just because you want it red, but because you'd want to inform users of an error. As such, setting the className AnErrorHasOccured
on the body would be my preferred implementation.
In css
body.AnErrorHasOccured
{
background: #f00;
}
In JavaScript:
document.body.className = "AnErrorHasOccured";
This leaves you the options of styling more elements according to this className
. And as such, by setting a className
you kind of give the page a certain state.
In my case, I needed to work with a column that has the data, so using IN() didn't work. Thanks to @Quassnoi for his examples. Here is my solution:
SELECT column(s) FROM table WHERE expr|column = ANY(STRING_TO_ARRAY(column,',')::INT[])
I spent almost 6 hours before I stumble on the post.
I tried a ton of things around permissions, mime types, etc, but for me it ended up being that the web.config had removed the Static file handler in IIS, and then explicitly added it back in for directories that would have static files. As soon as I added a location node for my directory and added the handler back, the requests stopped getting 404s.
Try using the "%h"
modifier:
scanf("%hu", &length);
^
ISO/IEC 9899:201x - 7.21.6.1-7
Specifies that a following d , i , o , u , x , X , or n conversion specifier applies to an argument with type pointer to short or unsigned short.
Using System Preferences:
Step 1: Click the Apple icon (at the top left of the screen) and select System Preferences.
Step 2: Click Network.
Step 3: Select your network connection and then click Advanced.
Step 4: Select the TCP/IP tab and find your gateway IP address listed next to Router.
You can't (and shouldn't) block processing with a sleep function. However, you can use setTimeout
to kick off a function after a delay:
setTimeout(function(){alert("hi")}, 1000);
Depending on your needs, setInterval
might be useful, too.
Real programmers do it with semaphores.
Have a variable set to 0
. Increment it before each AJAX call. Decrement it in each success handler, and test for 0
. If it is, you're done.
Use $PSVersionTable.PSVersion
to determine the engine version. If the variable does not exist, it is safe to assume the engine is version 1.0
.
Note that $Host.Version
and (Get-Host).Version
are not reliable - they reflect
the version of the host only, not the engine. PowerGUI,
PowerShellPLUS, etc. are all hosting applications, and
they will set the host's version to reflect their product
version — which is entirely correct, but not what you're looking for.
PS C:\> $PSVersionTable.PSVersion
Major Minor Build Revision
----- ----- ----- --------
4 0 -1 -1
==
and !=
work on object identity. While the two String
s have the same value, they are actually two different objects.
use !"success".equals(statusCheck)
instead.
Old post I know, but unless I've misunderstood the question, this should do the trick:
s = '[{"name":"name1","url":"url1"},{"name":"name2","url":"url2"}]';
eval("array=" + s);
for (var i = 0; i < array.length; i++) {
for (var index in array[i]) {
alert(array[i][index]);
}
}
Just try this code this code work with me
var posOptions = {timeout: 10000, enableHighAccuracy: false};
$cordovaGeolocation.getCurrentPosition(posOptions).then(function (position) {
var lat = position.coords.latitude;
var long = position.coords.longitude;
//console.log(lat +" "+long);
$http.get('https://maps.googleapis.com/maps/api/geocode/json?latlng=' + lat + ',' + long + '&key=your key here').success(function (output) {
//console.log( JSON.stringify(output.results[0]));
//console.log( JSON.stringify(output.results[0].address_components[4].short_name));
var results = output.results;
if (results[0]) {
//console.log("results.length= "+results.length);
//console.log("hi "+JSON.stringify(results[0],null,4));
for (var j = 0; j < results.length; j++){
//console.log("j= "+j);
//console.log(JSON.stringify(results[j],null,4));
for (var i = 0; i < results[j].address_components.length; i++){
if(results[j].address_components[i].types[0] == "country") {
//this is the object you are looking for
country = results[j].address_components[i];
}
}
}
console.log(country.long_name);
console.log(country.short_name);
} else {
alert("No results found");
console.log("No results found");
}
});
}, function (err) {
});
You need to create a new Window class. You can design that then any way you want. You can create and show a window modally like this:
MyWindow popup = new MyWindow();
popup.ShowDialog();
You can add a custom property for your result value, or if you only have two possible results ( + possibly undeterminate, which would be null
), you can set the window's DialogResult
property before closing it and then check for it (it is the value returned by ShowDialog()
).
Just want to point out you do not need to specify all dimensions of the array.
The leftmost dimension can be 'guessed' by the compiler.
#include <stdio.h>
int main(void) {
int arr[][5] = {{1,2,3,4,5}, {5,6,7,8,9}, {6,5,4,3,2}};
printf("sizeof arr is %d bytes\n", (int)sizeof arr);
printf("number of elements: %d\n", (int)(sizeof arr/sizeof arr[0]));
return 0;
}
Expanding on what leucos said in his answer, you can also print information with Ansible's humble debug
module:
- hosts: all
gather_facts: no
tasks:
- shell: ps -eo pcpu,user,args | sort -r -k1 | head -n5
register: ps
# Print the shell task's stdout.
- debug: msg={{ ps.stdout }}
# Print all contents of the shell task's output.
- debug: var=ps
If you want to execute a function when something is done. One of a good solution is to listen to events.
For example, I'll implement a Dispatcher
, a DispatcherEvent
class with ES6,then:
let Notification = new Dispatcher()
Notification.on('Load data success', loadSuccessCallback)
const loadSuccessCallback = (data) =>{
...
}
//trigger a event whenever you got data by
Notification.dispatch('Load data success')
Dispatcher:
class Dispatcher{
constructor(){
this.events = {}
}
dispatch(eventName, data){
const event = this.events[eventName]
if(event){
event.fire(data)
}
}
//start listen event
on(eventName, callback){
let event = this.events[eventName]
if(!event){
event = new DispatcherEvent(eventName)
this.events[eventName] = event
}
event.registerCallback(callback)
}
//stop listen event
off(eventName, callback){
const event = this.events[eventName]
if(event){
delete this.events[eventName]
}
}
}
DispatcherEvent:
class DispatcherEvent{
constructor(eventName){
this.eventName = eventName
this.callbacks = []
}
registerCallback(callback){
this.callbacks.push(callback)
}
fire(data){
this.callbacks.forEach((callback=>{
callback(data)
}))
}
}
Happy coding!
p/s: My code is missing handle some error exceptions
One way to get the list of distinct column names from the database is to use distinct()
in conjunction with values()
.
In your case you can do the following to get the names of distinct categories:
q = ProductOrder.objects.values('Category').distinct()
print q.query # See for yourself.
# The query would look something like
# SELECT DISTINCT "app_productorder"."category" FROM "app_productorder"
There are a couple of things to remember here. First, this will return a ValuesQuerySet
which behaves differently from a QuerySet
. When you access say, the first element of q
(above) you'll get a dictionary, NOT an instance of ProductOrder
.
Second, it would be a good idea to read the warning note in the docs about using distinct()
. The above example will work but all combinations of distinct()
and values()
may not.
PS: it is a good idea to use lower case names for fields in a model. In your case this would mean rewriting your model as shown below:
class ProductOrder(models.Model):
product = models.CharField(max_length=20, primary_key=True)
category = models.CharField(max_length=30)
rank = models.IntegerField()
You can try the keyword use
in Closure functions or Lambdas if this fits your intention... PHP 7.0 though. Not that's its better, but just an alternative.
$foo = "New";
$closure = (function($bar) use ($foo) {
echo "$foo $bar";
})("York");
Try .live()
or .delegate()
http://api.jquery.com/delegate/
Your .test
element was added after the .click()
method, so it didn't have the event attached to it. Live and Delegate give that event trigger to parent elements which check their children, so anything added afterwards still works. I think Live will check the entire document body, while Delegate can be given to an element, so Delegate is more efficient.
More info:
http://www.alfajango.com/blog/the-difference-between-jquerys-bind-live-and-delegate/
You can use Akka for several different kinds of things.
I was working on a website, where I migrated the technology stack to Scala and Akka. We used it for pretty much everything that happened on the website. Even though you might think a Chat example is bad, all are basically the same:
Especially the live updates are easy since they boil down to what a Chat example ist. The services part is another interesting topic because you can simply choose to use remote actors and even if your app is not clustered, you can deploy it to different machines with ease.
I am also using Akka for a PCB autorouter application with the idea of being able to scale from a laptop to a data center. The more power you give it, the better the result will be. This is extremely hard to implement if you try to use usual concurrency because Akka gives you also location transparency.
Currently as a free time project, I am building a web framework using only actors. Again the benefits are scalability from a single machine to an entire cluster of machines. Besides, using a message driven approach makes your software service oriented from the start. You have all those nice components, talking to each other but not necessarily knowing each other, living on the same machine, not even in the same data center.
And since Google Reader shut down I started with a RSS reader, using Akka of course. It is all about encapsulated services for me. As a conclusion: The actor model itself is what you should adopt first and Akka is a very reliable framework helping you to implement it with a lot of benefits you will receive along the way.
os.system("stty -icanon -echo")
while True:
raw_c = sys.stdin.buffer.peek()
c = sys.stdin.read(1)
print(f"Char: {c}")
When you inherit a class from a base class, you can invoke the base class constructor by instantiating the derived class
class sample
{
public int x;
public sample(int value)
{
x = value;
}
}
class der : sample
{
public int a;
public int b;
public der(int value1,int value2) : base(50)
{
a = value1;
b = value2;
}
}
class run
{
public static void Main(string[] args)
{
der obj = new der(10,20);
System.Console.WriteLine(obj.x);
System.Console.WriteLine(obj.a);
System.Console.WriteLine(obj.b);
}
}
Output of the sample program is
50 10 20
You can also use this
keyword to invoke a constructor from another constructor
class sample
{
public int x;
public sample(int value)
{
x = value;
}
public sample(sample obj) : this(obj.x)
{
}
}
class run
{
public static void Main(string[] args)
{
sample s = new sample(20);
sample ss = new sample(s);
System.Console.WriteLine(ss.x);
}
}
The output of this sample program is
20
If you really want to create a foreign key to a non-primary key, it MUST be a column that has a unique constraint on it.
From Books Online:
A FOREIGN KEY constraint does not have to be linked only to a PRIMARY KEY constraint in another table; it can also be defined to reference the columns of a UNIQUE constraint in another table.
So in your case if you make AnotherID
unique, it will be allowed. If you can't apply a unique constraint you're out of luck, but this really does make sense if you think about it.
Although, as has been mentioned, if you have a perfectly good primary key as a candidate key, why not use that?
you may follow these steps :
it worked for me :)
You might wanna check out /etc/security/limits.conf
at the lowest level, a framework is an environment, where you are given a set of tools to work with
this tools come in the form of libraries, configuration files, etc.
this so-called "environment" provides you with the basic setup (error reportings, log files, language settings, etc)...which can be modified,extended and built upon.
People actually do not need frameworks, it's just a matter of wanting to save time, and others just a matter of personal preferences.
People will justify that with a framework, you don't have to code from scratch. But those are just people confusing libraries with frameworks.
I'm not being biased here, I am actually using a framework right now.
I am wondering why you cannot put this in a batch file. Example:
cd D:\VBS\
WSCript Converter.vbs
Put the above code in a text file and save the text file with .bat extension. Now you have to simply run this .bat file.
If you want to get a list of files that are only in one directory and not their sub directories and only their file names:
diff -q /dir1 /dir2 | grep /dir1 | grep -E "^Only in*" | sed -n 's/[^:]*: //p'
If you want to recursively list all the files and directories that are different with their full paths:
diff -rq /dir1 /dir2 | grep -E "^Only in /dir1*" | sed -n 's/://p' | awk '{print $3"/"$4}'
This way you can apply different commands to all the files.
For example I could remove all the files and directories that are in dir1 but not dir2:
diff -rq /dir1 /dir2 | grep -E "^Only in /dir1*" | sed -n 's/://p' | awk '{print $3"/"$4}' xargs -I {} rm -r {}
For my point of view, First thing is to install soap into Centos
yum install php-soap
Second, see if the soap package exist or not
yum search php-soap
third, thus you must see some result of soap package you installed, now type a command in your terminal in the root folder for searching the location of soap for specific path
find -name soap.so
fourth, you will see the exact path where its installed/located, simply copy the path and find the php.ini to add the extension path,
usually the path of php.ini file in centos 6 is in
/etc/php.ini
fifth, add a line of code from below into php.ini file
extension='/usr/lib/php/modules/soap.so'
and then save the file and exit.
sixth run apache restart command in Centos. I think there is two command that can restart your apache ( whichever is easier for you )
service httpd restart
OR
apachectl restart
Lastly, check phpinfo() output in browser, you should see SOAP section where SOAP CLIENT, SOAP SERVER etc are listed and shown Enabled.
SOLUTION
The definition of optimal can vary, but here's how to concatenate strings from different rows using regular Transact SQL, which should work fine in Azure.
;WITH Partitioned AS
(
SELECT
ID,
Name,
ROW_NUMBER() OVER (PARTITION BY ID ORDER BY Name) AS NameNumber,
COUNT(*) OVER (PARTITION BY ID) AS NameCount
FROM dbo.SourceTable
),
Concatenated AS
(
SELECT
ID,
CAST(Name AS nvarchar) AS FullName,
Name,
NameNumber,
NameCount
FROM Partitioned
WHERE NameNumber = 1
UNION ALL
SELECT
P.ID,
CAST(C.FullName + ', ' + P.Name AS nvarchar),
P.Name,
P.NameNumber,
P.NameCount
FROM Partitioned AS P
INNER JOIN Concatenated AS C
ON P.ID = C.ID
AND P.NameNumber = C.NameNumber + 1
)
SELECT
ID,
FullName
FROM Concatenated
WHERE NameNumber = NameCount
EXPLANATION
The approach boils down to three steps:
Number the rows using OVER
and PARTITION
grouping and ordering them as needed for the concatenation. The result is Partitioned
CTE. We keep counts of rows in each partition to filter the results later.
Using recursive CTE (Concatenated
) iterate through the row numbers (NameNumber
column) adding Name
values to FullName
column.
Filter out all results but the ones with the highest NameNumber
.
Please keep in mind that in order to make this query predictable one has to define both grouping (for example, in your scenario rows with the same ID
are concatenated) and sorting (I assumed that you simply sort the string alphabetically before concatenation).
I've quickly tested the solution on SQL Server 2012 with the following data:
INSERT dbo.SourceTable (ID, Name)
VALUES
(1, 'Matt'),
(1, 'Rocks'),
(2, 'Stylus'),
(3, 'Foo'),
(3, 'Bar'),
(3, 'Baz')
The query result:
ID FullName
----------- ------------------------------
2 Stylus
3 Bar, Baz, Foo
1 Matt, Rocks
In the case that you want to revert a file to a previous commit (and the file you want to revert already committed) you can use
git checkout HEAD^1 path/to/file
or
git checkout HEAD~1 path/to/file
Then just stage and commit the "new" version.
Armed with the knowledge that a commit can have two parents in the case of a merge, you should know that HEAD^1 is the first parent and HEAD~1 is the second parent.
Either will work if there is only one parent in the tree.
The inline-block
display style seems to do what you want. Note that the <nobr>
tag is deprecated, and should not be used. Non-breaking white space is doable in CSS. Here's how I would alter your example style rules:
div { display: inline-block; white-space: nowrap; }
.success { background-color: #ccffcc; }
Alter your stylesheet, remove the <nobr>
tags from your source, and give it a try. Note that display: inline-block
does not work in every browser, though it tends to only be problematic in older browsers (newer versions should support it to some degree). My personal opinion is to ignore coding for broken browsers. If your code is standards compliant, it should work in all of the major, modern browsers. Anyone still using IE6 (or earlier) deserves the pain. :-)
The MitM Me addon will do this - but I think self-signed certificates is probably a better solution.
Bootstrap offers various table styles. Have a look at Base CSS - Tables for documentation and examples.
The following style gives great looking tables:
<table class="table table-striped table-bordered table-condensed">
...
</table>
I was also facing the same problem where I was not able to appendText to richTextBox of Form class. So I created a method called update
, where I used to pass a message from Class1.
class: Form1.cs
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
_Form1 = this;
}
public static Form1 _Form1;
public void update(string message)
{
textBox1.Text = message;
}
private void Form1_Load(object sender, EventArgs e)
{
Class1 sample = new Class1();
}
}
class: Class1.cs
public class Class1
{
public Class1()
{
Form1._Form1.update("change text");
}
}
Just for completeness and because it was asked in the comments - there's also the CSS audit tool in Chrome now for the same purpose. Some details here:
http://meeech.amihod.com/very-useful-find-unused-css-rules-with-google
By far the easiest way i've seen to do it (and works on windows as well) is git bundle
:
git bundle create /some/bundle/path.bundle --all
See this answer for more details: How can I copy my git repository from my windows machine to a linux machine via usb drive?
document.getElementById("something").innerHTML = "<img src=\"something\" onmouseover=\"change('ex1')\" />";
OR
document.getElementById("something").innerHTML = '<img src="something" onmouseover="change(\'ex1\')" />';
It should be working...
Your code is way more cluttered than necessary.
Replace (Not (X Is Nothing))
with X IsNot Nothing
and omit the outer parentheses:
If comp.Container IsNot Nothing AndAlso comp.Container.Components IsNot Nothing Then
For i As Integer = 0 To comp.Container.Components.Count() - 1
fixUIIn(comp.Container.Components(i), style)
Next
End If
Much more readable. … Also notice that I’ve removed the redundant Step 1
and the probably redundant .Item
.
But (as pointed out in the comments), index-based loops are out of vogue anyway. Don’t use them unless you absolutely have to. Use For Each
instead:
If comp.Container IsNot Nothing AndAlso comp.Container.Components IsNot Nothing Then
For Each component In comp.Container.Components
fixUIIn(component, style)
Next
End If
replace operates on a specific string, so you need to call it like this
removeSpecialChars = z.replace("!@#$%^&*()[]{};:,./<>?\|`~-=_+", " ")
but this is probably not what you need, since this will look for a single string containing all that characters in the same order. you can do it with a regexp, as Danny Michaud pointed out.
as a side note, you might want to look for BeautifulSoup, which is a library for parsing messy HTML formatted text like what you usually get from scaping websites.
Associative array in PHP actually considered as a dictionary.
An array in PHP is actually an ordered map. A map is a type that associates values to keys. it can be treated as an array, list (vector), hash table (an implementation of a map), dictionary, collection, stack, queue, and probably more.
<?php
$array = array(
"foo" => "bar",
"bar" => "foo",
);
// Using the short array syntax
$array = [
"foo" => "bar",
"bar" => "foo",
];
?>
An array is different than a dictionary in that arrays have both an index and a key. Dictionaries only have keys and no index.
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
import java.util.Stack;
public class BalancedParenthesisWithStack {
/*This is purely Java Stack based solutions without using additonal
data structure like array/Map */
public static void main(String[] args) throws IOException {
Scanner sc = new Scanner(System.in);
/*Take list of String inputs (parenthesis expressions both valid and
invalid from console*/
List<String> inputs=new ArrayList<>();
while (sc.hasNext()) {
String input=sc.next();
inputs.add(input);
}
//For every input in above list display whether it is valid or
//invalid parenthesis expression
for(String input:inputs){
System.out.println("\nisBalancedParenthesis:"+isBalancedParenthesis
(input));
}
}
//This method identifies whether expression is valid parenthesis or not
public static boolean isBalancedParenthesis(String expression){
//sequence of opening parenthesis according to its precedence
//i.e. '[' has higher precedence than '{' or '('
String openingParenthesis="[{(";
//sequence of closing parenthesis according to its precedence
String closingParenthesis=")}]";
//Stack will be pushed on opening parenthesis and popped on closing.
Stack<Character> parenthesisStack=new Stack<>();
/*For expression to be valid :
CHECK :
1. it must start with opening parenthesis [()...
2. precedence of parenthesis should be proper (eg. "{[" invalid
"[{(" valid )
3. matching pair if( '(' => ')') i.e. [{()}(())] ->valid [{)]not
*/
if(closingParenthesis.contains
(((Character)expression.charAt(0)).toString())){
return false;
}else{
for(int i=0;i<expression.length();i++){
char ch= (Character)expression.charAt(i);
//if parenthesis is opening(ie any of '[','{','(') push on stack
if(openingParenthesis.contains(ch.toString())){
parenthesisStack.push(ch);
}else if(closingParenthesis.contains(ch.toString())){
//if parenthesis is closing (ie any of ']','}',')') pop stack
//depending upon check-3
if(parenthesisStack.peek()=='(' && (ch==')') ||
parenthesisStack.peek()=='{' && (ch=='}') ||
parenthesisStack.peek()=='[' && (ch==']')
){
parenthesisStack.pop();
}
}
}
return (parenthesisStack.isEmpty())? true : false;
}
}
Simply floating both elements left achieves the same result.
div {
background:yellow;
vertical-align:middle;
margin:10px;
}
a {
background-color:#FFF;
width:20px;
height:20px;
display:inline-block;
border:solid black 1px;
float:left;
}
span {
background:red;
display:inline-block;
float:left;
}
Dont write with stability stable
in the command ,
in your composer.json file, put
"minimum-stability": "stable"
before the closing curly bracket.
What does it mean?
That means that each iterator you obtain from a ConcurrentHashMap
is designed to be used by a single thread and should not be passed around. This includes the syntactic sugar that the for-each loop provides.
What happens if I try to iterate the map with two threads at the same time?
It will work as expected if each of the threads uses it's own iterator.
What happens if I put or remove a value from the map while iterating it?
It is guaranteed that things will not break if you do this (that's part of what the "concurrent" in ConcurrentHashMap
means). However, there is no guarantee that one thread will see the changes to the map that the other thread performs (without obtaining a new iterator from the map). The iterator is guaranteed to reflect the state of the map at the time of it's creation. Futher changes may be reflected in the iterator, but they do not have to be.
In conclusion, a statement like
for (Object o : someConcurrentHashMap.entrySet()) {
// ...
}
will be fine (or at least safe) almost every time you see it.
Essentially, and as-noted by @kevin-b:
// find('#id')
angular.element(document.querySelector('#id'))
//find('.classname'), assumes you already have the starting elem to search from
angular.element(elem.querySelector('.classname'))
Note: If you're looking to do this from your controllers you may want to have a look at the "Using Controllers Correctly" section in the developers guide and refactor your presentation logic into appropriate directives (such as <a2b ...>).
Thread th = new Thread(function1);
th.Start();
th.Abort();
void function1(){
//code here
}
To extend on what womp posted, you can pass new View Data while retaining the existing View Data if you use the constructor overload of the ViewDataDictionary
like so:
Html.RenderPartial(
"ProductImageForm",
image,
new ViewDataDictionary(this.ViewData) { { "index", index } }
);
Last-Modified : The last modified date for the requested object
If-Modified-Since : Allows a 304 Not Modified to be returned if last modified date is unchanged.
ETag : An ETag is an opaque identifier assigned by a web server to a specific version of a resource found at a URL. If the resource representation at that URL ever changes, a new and different ETag is assigned.
If-None-Match : Allows a 304 Not Modified to be returned if ETag is unchanged.
the browser store cache with a date(Last-Modified) or id(ETag), when you need to request the URL again, the browser send request message with the header:
the server will return 304 when the if statement is False, and browser will use cache.
I like the solution with qt.conf
.
Put qt.conf
near to the executable with next lines:
[Paths]
Prefix = /path/to/qtbase
And it works like a charm :^)
For a working example:
[Paths]
Prefix = /home/user/SDKS/Qt/5.6.2/5.6/gcc_64/
The documentation on this is here: https://doc.qt.io/qt-5/qt-conf.html
Consider normalizing to E.164 format. For full international support, you'd need a VARCHAR of 15 digits.
See Twilio's recommendation for more information on localization of phone numbers.
After upgrading to OSX Lion, I started getting this error on certain (Debian/Ubuntu) servers. The fix is simply to install the “ncurses-term” package which provides the file /usr/share/terminfo/x/xterm-256color.
This worked for me on a Ubuntu server, via Erik Osterman.
Switch off compatibility view if you use IE9.
If you want to insert this formula =SUMIFS(B2:B10,A2:A10,F2)
into cell G2, here is how I did it.
Range("G2")="=sumifs(B2:B10,A2:A10," & _
"F2)"
To split a line of code, add an ampersand, space and underscore.
When you add a jar file to a classpath you can attach a source directory or zip or jar file to that jar. In the Java Build Path properties, on the Libraries tab, expand the entry for the jar and you'll see there's an item for the source attachment. Select this item and then click the Edit button. This lets you select the folder, jar or zip that contains the source.
Additionally, if you select a class or a method in the jar and CTRL+CLICK on it (or press F3) then you'll go into the bytecode view which has an option to attach the source code.
Doing these things will give you all the parameter names as well as full javadoc.
If you don't have the source but do have the javadoc, you can attach the javadoc via the first method. It can even reference an external URL if you don't have it downloaded.
If you want to compare to a string literal you need to put it in (single) quotes:
<xsl:if test="Count != 'N/A'">
You can do that in this way:
ORDER BY `products`.`product_category_id` DESC ,`naam` ASC
Have a look at ORDER BY
Optimization
Also for openCV in python you can do:
img = cv2.imread('myImage.jpg')
height, width, channels = img.shape
Once you have a paid account on GitHub, it is not obvious how to create a private repository. To create a private repository for an organization with paid account, go to https://github.com/organizations/MYORGANIZATIONNAME.
The only way I've figured how to navigate there is:
It is not clear why you want to do this. If you want to get the correct numerical value, you could use unary +
[docs]:
value = +value;
If you just want to format the text, then regex could be better. It depends on the values you are dealing with I'd say. If you only have integers, then
input.value = +input.value;
is fine as well. Of course it also works for float values, but depending on how many digits you have after the point, converting it to a number and back to a string could (at least for displaying) remove some.
JS Code
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/ libs/jquery/1.3.0/jquery.min.js">
</script>
<script type="text/javascript" >
$(function() {
$(".submit").click(function() {
var time = $("#time").val();
var date = $("#date").val();
var dataString = 'time='+ time + '&date=' + date;
if(time=='' || date=='')
{
$('.success').fadeOut(200).hide();
$('.error').fadeOut(200).show();
}
else
{
$.ajax({
type: "POST",
url: "post.php",
data: dataString,
success: function(){
$('.success').fadeIn(200).show();
$('.error').fadeOut(200).hide();
}
});
}
return false;
});
});
</script>
HTML Form
<form>
<input id="time" value="00:00:00.00"><br>
<input id="date" value="0000-00-00"><br>
<input name="submit" type="button" value="Submit">
</form>
<span class="error" style="display:none"> Please Enter Valid Data</span>
<span class="success" style="display:none"> Form Submitted Success</span>
</div>
PHP Code
<?php
if($_POST)
{
$date=$_POST['date'];
$time=$_POST['time'];
mysql_query("SQL insert statement.......");
}else { }
?>
Taken From Here
Assuming you are a new starter on Android Studio, Simply you can get it done in design view XML by using
android:textStyle="bold" //to make text bold
android:textStyle="italic" //to make text italic
android:textStyle="bold|italic" //to make text bold & italic
If you are more comfortable with a GUI, you can use the pgAdmin software.
It seems like what you want is http://msdn.microsoft.com/en-us/library/ms186323.aspx.
In your example it would be (starts with):
set @isExpress = (CharIndex('Express Edition', @edition) = 1)
Or contains
set @isExpress = (CharIndex('Express Edition', @edition) >= 1)
Just use HTML anchor tag <a>
and start the attribute href
with tel:
. I suggest starting the phone number with the country code. pay attention to the following example:
<a href="tel:+989123456789">NO Different What it is</a>
For this example, the country code is +98
.
Hint: It is so suitable for cellphones, I know tel:
prefix calls FaceTime
on macOS but on Windows I'm not sure, but I guess it caused to launch Skype.
For more information: you can visit the list of URL schemes supported by browsers to know all href
values prefixes.
For what it's worth, some heavy used production code I have written is based on this assumption and I never had a problem with it. I know that doesn't make it true though :-)
If you don't want to take the risk I would use iteritems() if you can.
for key, value in myDictionary.iteritems():
print key, value
A short example will help you understand one of yield from
's use case: get value from another generator
def flatten(sequence):
"""flatten a multi level list or something
>>> list(flatten([1, [2], 3]))
[1, 2, 3]
>>> list(flatten([1, [2], [3, [4]]]))
[1, 2, 3, 4]
"""
for element in sequence:
if hasattr(element, '__iter__'):
yield from flatten(element)
else:
yield element
print(list(flatten([1, [2], [3, [4]]])))
What even is ‘children’?
The React docs say that you can use
props.children
on components that represent ‘generic boxes’ and that don’t know their children ahead of time. For me, that didn’t really clear things up. I’m sure for some, that definition makes perfect sense but it didn’t for me.My simple explanation of what
this.props.children
does is that it is used to display whatever you include between the opening and closing tags when invoking a component.A simple example:
Here’s an example of a stateless function that is used to create a component. Again, since this is a function, there is no
this
keyword so just useprops.children
const Picture = (props) => {
return (
<div>
<img src={props.src}/>
{props.children}
</div>
)
}
This component contains an
<img>
that is receiving someprops
and then it is displaying{props.children}
.Whenever this component is invoked
{props.children}
will also be displayed and this is just a reference to what is between the opening and closing tags of the component.
//App.js
render () {
return (
<div className='container'>
<Picture key={picture.id} src={picture.src}>
//what is placed here is passed as props.children
</Picture>
</div>
)
}
Instead of invoking the component with a self-closing tag
<Picture />
if you invoke it will full opening and closing tags<Picture> </Picture>
you can then place more code between it.This de-couples the
<Picture>
component from its content and makes it more reusable.
Reference: A quick intro to React’s props.children
If you want to iterate over non-enumerable properties as well, you can use Object.getOwnPropertyNames(obj)
to return an array of all properties (enumerable or not) found directly upon a given object.
var obj = Object.create({}, {_x000D_
// non-enumerable property_x000D_
getFoo: {_x000D_
value: function() { return this.foo; },_x000D_
enumerable: false_x000D_
}_x000D_
});_x000D_
_x000D_
obj.foo = 1; // enumerable property_x000D_
_x000D_
Object.getOwnPropertyNames(obj).forEach(function (name) {_x000D_
document.write(name + ': ' + obj[name] + '<br/>');_x000D_
});
_x000D_
$_POST
is an array in itsself you don't need to make an array out of it. What you did is nest the $_POST
array inside a new array. This is why you print Array
.
Change it to:
foreach ($_POST as $key => $value) {
echo "<p>".$key."</p>";
echo "<p>".$value."</p>";
echo "<hr />";
}
mysqli is provided by php-mysql-5.3.3-40.el6_6.x86_64
You may need to try the following
yum install php-mysql-5.3.3-40.el6_6.x86_64
I managed it by hiding the select box and showing a span
in its place with only informational value. On the event of disabling the .readonly
class, we need also to remove the .toVanish
elements and show the .toShow
ones.
$( '.readonly' ).live( 'focus', function(e) {
$( this ).attr( 'readonly', 'readonly' )
if( $( this ).get(0).tagName == 'SELECT' ) {
$( this ).before( '<span class="toVanish readonly" style="border:1px solid; padding:5px">'
+ $( this ).find( 'option:selected' ).html() + '</span>' )
$( this ).addClass( 'toShow' )
$( this ).hide()
}
});
It's important to note that using viewDidLoad for positioning is a bit risky and should be avoided since the bounds are not set. this may cause unexpected results (I had a variety of issues...)
This post describes quite well the different methods and what happens in each of them.
currently for one-time init and positioning I'm thinking of using viewDidAppear with a flag, if anyone has any other recommendation please let me know.
In that example, e
is just a parameter for that function, but it's the event
object that gets passed in through it.
It worked well for me. Just one line code in cmd.
First, confirm that you have installed the gcc (for c) or g++ (for c++) compiler.
In cmd for gcc type:
gcc --version
in cmd for g++ type:
g++ --version
If it is installed then proceed.
Now, compile your .c or .cpp using cmd
for .c syntax:
gcc -o exe_filename yourfilename.c
Example:
gcc -o myfile myfile.c
Here exe_filename (myfile in example) is the name of your .exe file which you want to produce after compilation (Note: i have not put any extension here). And yourfilename.c (myfile.c in example) is the your source file which has the .c extension.
Now go to folder containing your .c file, here you will find a file with .exe extension. Just open it. Hurray..
For .cpp syntax:
g++ -o exe_filename yourfilename.cpp
After it the process is same as for .c .
As Leo points out, the code you added to your question would not suggest a strong reference cycle (a.k.a., retain cycle). One operation-related issue that could cause a strong reference cycle would be if the operation is not getting released. While your code snippet suggests that you have not defined your operation to be concurrent, but if you have, it wouldn't be released if you never posted isFinished
, or if you had circular dependencies, or something like that. And if the operation isn't released, the view controller wouldn't be released either. I would suggest adding a breakpoint or NSLog
in your operation's dealloc
method and confirm that's getting called.
You said:
I understand the notion of retain cycles, but I am not quite sure what happens in blocks, so that confuses me a little bit
The retain cycle (strong reference cycle) issues that occur with blocks are just like the retain cycle issues you're familiar with. A block will maintain strong references to any objects that appear within the block, and it will not release those strong references until the block itself is released. Thus, if block references self
, or even just references an instance variable of self
, that will maintain strong reference to self, that is not resolved until the block is released (or in this case, until the NSOperation
subclass is released.
For more information, see the Avoid Strong Reference Cycles when Capturing self section of the Programming with Objective-C: Working with Blocks document.
If your view controller is still not getting released, you simply have to identify where the unresolved strong reference resides (assuming you confirmed the NSOperation
is getting deallocated). A common example is the use of a repeating NSTimer
. Or some custom delegate
or other object that is erroneously maintaining a strong
reference. You can often use Instruments to track down where objects are getting their strong references, e.g.:
Or in Xcode 5:
Set the property RetainSameConnection
on the Connection Manager
to True
so that temporary table created in one Control Flow task can be retained in another task.
Here is a sample SSIS package written in SSIS 2008 R2
that illustrates using temporary tables.
Create a stored procedure that will create a temporary table named ##tmpStateProvince
and populate with few records. The sample SSIS package will first call the stored procedure and then will fetch the temporary table data to populate the records into another database table. The sample package will use the database named Sora
Use the below create stored procedure script.
USE Sora;
GO
CREATE PROCEDURE dbo.PopulateTempTable
AS
BEGIN
SET NOCOUNT ON;
IF OBJECT_ID('TempDB..##tmpStateProvince') IS NOT NULL
DROP TABLE ##tmpStateProvince;
CREATE TABLE ##tmpStateProvince
(
CountryCode nvarchar(3) NOT NULL
, StateCode nvarchar(3) NOT NULL
, Name nvarchar(30) NOT NULL
);
INSERT INTO ##tmpStateProvince
(CountryCode, StateCode, Name)
VALUES
('CA', 'AB', 'Alberta'),
('US', 'CA', 'California'),
('DE', 'HH', 'Hamburg'),
('FR', '86', 'Vienne'),
('AU', 'SA', 'South Australia'),
('VI', 'VI', 'Virgin Islands');
END
GO
Create a table named dbo.StateProvince
that will be used as the destination table to populate the records from temporary table. Use the below create table script to create the destination table.
USE Sora;
GO
CREATE TABLE dbo.StateProvince
(
StateProvinceID int IDENTITY(1,1) NOT NULL
, CountryCode nvarchar(3) NOT NULL
, StateCode nvarchar(3) NOT NULL
, Name nvarchar(30) NOT NULL
CONSTRAINT [PK_StateProvinceID] PRIMARY KEY CLUSTERED
([StateProvinceID] ASC)
) ON [PRIMARY];
GO
Create an SSIS package using Business Intelligence Development Studio (BIDS)
. Right-click on the Connection Managers tab at the bottom of the package and click New OLE DB Connection...
to create a new connection to access SQL Server 2008 R2 database.
Click New...
on Configure OLE DB Connection Manager.
Perform the following actions on the Connection Manager dialog.
Native OLE DB\SQL Server Native Client 10.0
from Provider since the package will connect to SQL Server 2008 R2 databaseMACHINENAME\INSTANCE
Use Windows Authentication
from Log on to the server section or whichever you prefer.Select or enter a database name
, the sample uses the database name Sora
.Test Connection
OK
on the Test connection succeeded message.OK
on Connection ManagerThe newly created data connection will appear on Configure OLE DB Connection Manager. Click OK
.
OLE DB connection manager KIWI\SQLSERVER2008R2.Sora
will appear under the Connection Manager tab at the bottom of the package. Right-click the connection manager and click Properties
Set the property RetainSameConnection
on the connection KIWI\SQLSERVER2008R2.Sora
to the value True
.
Right-click anywhere inside the package and then click Variables
to view the variables pane. Create the following variables.
A new variable named PopulateTempTable
of data type String
in the package scope SO_5631010
and set the variable with the value EXEC dbo.PopulateTempTable
.
A new variable named FetchTempData
of data type String
in the package scope SO_5631010
and set the variable with the value SELECT CountryCode, StateCode, Name FROM ##tmpStateProvince
Drag and drop an Execute SQL Task
on to the Control Flow tab. Double-click the Execute SQL Task to view the Execute SQL Task Editor.
On the General
page of the Execute SQL Task Editor, perform the following actions.
Create and populate temp table
OLE DB
KIWI\SQLSERVER2008R2.Sora
Variable
from SQLSourceTypeUser::PopulateTempTable
from SourceVariableOK
Drag and drop a Data Flow Task
onto the Control Flow tab. Rename the Data Flow Task as Transfer temp data to database table
. Connect the green arrow from the Execute SQL Task to the Data Flow Task.
Double-click the Data Flow Task
to switch to Data Flow tab. Drag and drop an OLE DB Source
onto the Data Flow tab. Double-click OLE DB Source to view the OLE DB Source Editor.
On the Connection Manager
page of the OLE DB Source Editor, perform the following actions.
KIWI\SQLSERVER2008R2.Sora
from OLE DB Connection ManagerSQL command from variable
from Data access modeUser::FetchTempData
from Variable nameColumns
pageClicking Columns
page on OLE DB Source Editor will display the following error because the table ##tmpStateProvince
specified in the source command variable does not exist and SSIS is unable to read the column definition.
To fix the error, execute the statement EXEC dbo.PopulateTempTable
using SQL Server Management Studio (SSMS) on the database Sora
so that the stored procedure will create the temporary table. After executing the stored procedure, click Columns
page on OLE DB Source Editor, you will see the column information. Click OK
.
Drag and drop OLE DB Destination
onto the Data Flow tab. Connect the green arrow from OLE DB Source to OLE DB Destination. Double-click OLE DB Destination
to open OLE DB Destination Editor.
On the Connection Manager
page of the OLE DB Destination Editor, perform the following actions.
KIWI\SQLSERVER2008R2.Sora
from OLE DB Connection ManagerTable or view - fast load
from Data access mode[dbo].[StateProvince]
from Name of the table or the viewMappings
pageClick Mappings
page on the OLE DB Destination Editor would automatically map the columns if the input and output column names are same. Click OK
. Column StateProvinceID
does not have a matching input column and it is defined as an IDENTITY
column in database. Hence, no mapping is required.
Data Flow tab should look something like this after configuring all the components.
Click the OLE DB Source
on Data Flow tab and press F4 to view Properties
. Set the property ValidateExternalMetadata
to False so that SSIS would not try to check for the existence of the temporary table during validation phase of the package execution.
Execute the query select * from dbo.StateProvince
in the SQL Server Management Studio (SSMS) to find the number of rows in the table. It should be empty before executing the package.
Execute the package. Control Flow shows successful execution.
In Data Flow tab, you will notice that the package successfully processed 6 rows. The stored procedure created early in this posted inserted 6 rows into the temporary table.
Execute the query select * from dbo.StateProvince
in the SQL Server Management Studio (SSMS) to find the 6 rows successfully inserted into the table. The data should match with rows founds in the stored procedure.
The above example illustrated how to create and use temporary table within a package.
From Reddit:
https://www.reddit.com/r/Windows10/comments/39af75/for_my_win10_companions_heres_how_to_get/
I can't see the original source in this thread, although I would like to.
I am using these instructions with a laptop that upgraded from windows 8 to windows 10. I have to repeat the last instructions after rebooting.
I have test an get solution for my self and want to share my solution. - Host Only worked - Bridge Adapter worked
My Configuration is - Surface Pro 1 - Clean install Windows 10 x64 build 10130 - VirtualBox-5.0.0_RC1-100731-Win.exe
(this is my opinion but not tested on how to remove previous version by install VirtualBox-5.0.0_RC1-100731-Win.exe with select all function to install its will fault and rollback all, then its same as uninstall)
Install Step - Right Click on VirtualBox-5.0.0_RC1-100731-Win.exe and select "Run as Administrator" - "Unselect" option bridge network
next until finish
Open "Device Manager", you can use search bar to get this, under "Network adapters" then Right Click "VirtualBox Host-Only Ethernet Adapter" select "Update Driver Software" select "Search automactic" wait until its finish
- Open "Network Connections", you can use search bar to get this, at here you should find VirtualBox Host-Only Ethernet Adapter
- Open "CMD", you can use search bar to get this, Right Click and Select Run as Administrator
- cd to your install path and run command "VirtualBox-5.0.0_RC1-100731-Win.exe -extract" its will return pop-up tell where is extracted folder
- in extracted folder extract "VirtualBox-5.0.0_RC1-r100731-MultiArch_amd64.msi" by 7-Zip or any similar
- in msi extracted folder rename all files by remove file_ in front of them
- copy "VBoxNetFltNobj.sys" and "VBoxNetFlt.sys" to C:\Windows\System32\
- Open "CMD", you can use search bar to get this, Right Click and Select Run as Administrator run command "regsvr32.exe /s VBoxNetFltNobj.sys" run command "regsvr32.exe /s VBoxNetFlt.sys"
- Open "Network Connections", you can use search bar to get this, Right Click on any real network adapter select Properties select Install select Service select "Have Disk" and browse to "VBoxDrv.inf" select "VirtualBox NDIS6 Bridged Networking Driver" after finish install you should see its avaliable in this connection
On Start Menu Right Click on "Orcle VM VirtualBox" select open file location
Right Click on Shortcut then select properties on tab "Compatibility" checked "Run this Program as Administrator"
!!! this very important to run application with adminstrator if not you will lose host-only network adapter
- Open "Virtual Box" select file > preference select network then select Host On Network select edit change ip to 192.168.56.1 and netmask to 255.255.255.0
- Now you can use both host-only and bridge network on your guest
I think reason why normal installation was error is about Administrator access level when regis service and run application
Sorry for my bad english and this is so long procedure
Hope this will work for you too. ^_^!
You can use OpenLayers (js API for maps).
There's an example on their page showing how to embed OSM tiles.
Edit: New Link to OpenLayers examples
If you know the position, why not just get the index from that?
Then use .loc
:
df.loc[index, 'COL_NAME'] = x
it will take much time then normal start and it will fresh up all resources.
Place the ico address in the head
with a link
-tag:
<link rel="shortcut icon" href="http://sstatic.net/stackoverflow/img/favicon.ico">
I like the answer of Patrick Cuff. What I like to add is the distinction between a test level and a test type which was for me an eye opener.
Test level is easy to explain using V-model, an example: Each test level has its corresponding development level. It has a typical time characteristic, they're executed at certain phase in the development life cycle.
A test type is a characteristics, it focuses on a specific test objective. Test types emphasize your quality aspects, also known as technical or non-functional aspects. Test types can be executed at any test level. I like to use as test types the quality characteristics mentioned in ISO/IEC 25010:2011.
To make it complete. There's also something called regression testing. This an extra classification next to test level and test type. A regression test is a test you want to repeat because it touches something critical in your product. It's in fact a subset of tests you defined for each test level. If a there's a small bug fix in your product, one doesn't always have the time to repeat all tests. Regression testing is an answer to that.
As others have pointed out one could just delete all the files in the repo and then check them out. I prefer this method and it can be done with the code below
git ls-files -z | xargs -0 rm
git checkout -- .
or one line
git ls-files -z | xargs -0 rm ; git checkout -- .
I use it all the time and haven't found any down sides yet!
For some further explanation, the -z
appends a null character onto the end of each entry output by ls-files
, and the -0
tells xargs
to delimit the output it was receiving by those null characters.
If your <option>
elements don't have value
attributes, then you can just use .val
:
$selectElement.val("text_you're_looking_for")
However, if your <option>
elements have value attributes, or might do in future, then this won't work, because whenever possible .val
will select an option by its value
attribute instead of by its text content. There's no built-in jQuery method that will select an option by its text content if the options have value
attributes, so we'll have to add one ourselves with a simple plugin:
/*
Source: https://stackoverflow.com/a/16887276/1709587
Usage instructions:
Call
jQuery('#mySelectElement').selectOptionWithText('target_text');
to select the <option> element from within #mySelectElement whose text content
is 'target_text' (or do nothing if no such <option> element exists).
*/
jQuery.fn.selectOptionWithText = function selectOptionWithText(targetText) {
return this.each(function () {
var $selectElement, $options, $targetOption;
$selectElement = jQuery(this);
$options = $selectElement.find('option');
$targetOption = $options.filter(
function () {return jQuery(this).text() == targetText}
);
// We use `.prop` if it's available (which it should be for any jQuery
// versions above and including 1.6), and fall back on `.attr` (which
// was used for changing DOM properties in pre-1.6) otherwise.
if ($targetOption.prop) {
$targetOption.prop('selected', true);
}
else {
$targetOption.attr('selected', 'true');
}
});
}
Just include this plugin somewhere after you add jQuery onto the page, and then do
jQuery('#someSelectElement').selectOptionWithText('Some Target Text');
to select options.
The plugin method uses filter
to pick out only the option
matching the targetText, and selects it using either .attr
or .prop
, depending upon jQuery version (see .prop() vs .attr() for explanation).
Here's a JSFiddle you can use to play with all three answers given to this question, which demonstrates that this one is the only one to reliably work: http://jsfiddle.net/3cLm5/1/
I faced this issue because my $(elem).click(function(){});
script was placed inline in a div that was set to style="display:none;"
.
When the css display was switched to block, the script would add the event listener a second time. I moved the script to a separate .js file and the duplicate event listener was no longer initiated.
How about something like this?
<html>
<head>
<script type="text/javascript">
var HoverListener = {
addElem: function( elem, callback, delay )
{
if ( delay === undefined )
{
delay = 1000;
}
var hoverTimer;
addEvent( elem, 'mouseover', function()
{
hoverTimer = setTimeout( callback, delay );
} );
addEvent( elem, 'mouseout', function()
{
clearTimeout( hoverTimer );
} );
}
}
function tester()
{
alert( 'hi' );
}
// Generic event abstractor
function addEvent( obj, evt, fn )
{
if ( 'undefined' != typeof obj.addEventListener )
{
obj.addEventListener( evt, fn, false );
}
else if ( 'undefined' != typeof obj.attachEvent )
{
obj.attachEvent( "on" + evt, fn );
}
}
addEvent( window, 'load', function()
{
HoverListener.addElem(
document.getElementById( 'test' )
, tester
);
HoverListener.addElem(
document.getElementById( 'test2' )
, function()
{
alert( 'Hello World!' );
}
, 2300
);
} );
</script>
</head>
<body>
<div id="test">Will alert "hi" on hover after one second</div>
<div id="test2">Will alert "Hello World!" on hover 2.3 seconds</div>
</body>
</html>
IF EXISTS (SELECT *
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'TableName' AND COLUMN_NAME = 'ColumnName'
AND TABLE_SCHEMA = SchemaName)
BEGIN
ALTER TABLE TableName DROP COLUMN ColumnName;
END;
If there is no randomstate provided the system will use a randomstate that is generated internally. So, when you run the program multiple times you might see different train/test data points and the behavior will be unpredictable. In case, you have an issue with your model you will not be able to recreate it as you do not know the random number that was generated when you ran the program.
If you see the Tree Classifiers - either DT or RF, they try to build a try using an optimal plan. Though most of the times this plan might be the same there could be instances where the tree might be different and so the predictions. When you try to debug your model you may not be able to recreate the same instance for which a Tree was built. So, to avoid all this hassle we use a random_state while building a DecisionTreeClassifier or RandomForestClassifier.
PS: You can go a bit in depth on how the Tree is built in DecisionTree to understand this better.
randomstate is basically used for reproducing your problem the same every time it is run. If you do not use a randomstate in traintestsplit, every time you make the split you might get a different set of train and test data points and will not help you in debugging in case you get an issue.
From Doc:
If int, randomstate is the seed used by the random number generator; If RandomState instance, randomstate is the random number generator; If None, the random number generator is the RandomState instance used by np.random.
Try this code. You just need to implement this code in master page and it will work for you on all the pages
<script type="text/javascript">
window.onload = function () {
noBack();
}
function noBack() {
window.history.forward();
}
</script>
<body onpageshow="if (event.persisted) noBack();">
</body>
Your regex ^[0-9]
matches anything beginning with a digit, including strings like "1A". To avoid a partial match, append a $
to the end:
^[0-9]*$
This accepts any number of digits, including none. To accept one or more digits, change the *
to +
. To accept exactly one digit, just remove the *
.
UPDATE: You mixed up the arguments to IsMatch
. The pattern should be the second argument, not the first:
if (!System.Text.RegularExpressions.Regex.IsMatch(textbox.Text, "^[0-9]*$"))
CAUTION: In JavaScript, \d
is equivalent to [0-9]
, but in .NET, \d
by default matches any Unicode decimal digit, including exotic fare like ? (Myanmar 2) and ? (N'Ko 9). Unless your app is prepared to deal with these characters, stick with [0-9]
(or supply the RegexOptions.ECMAScript flag).
BufferedWriter login = new BufferedWriter(new FileWriter("login.txt"));
is an example if you want to create a file in one line.
you don't need to set the width of header in css, just put the background image as center using this code:
background: url("images/logo.png") no-repeat top center;
or you can just use img
tag and put align="center"
in the div