def start(self):
sec_arg = 10.0
cptr = 0
time_start = time.time()
time_init = time.time()
while True:
cptr += 1
time_start = time.time()
time.sleep(((time_init + (sec_arg * cptr)) - time_start ))
# AND YOUR CODE .......
t00 = threading.Thread(name='thread_request', target=self.send_request, args=([]))
t00.start()
Use the matplotlib savefig
function with the keyword argument transparent=True
to save the image as a png file.
In [30]: x = np.linspace(0,6,31)
In [31]: y = np.exp(-0.5*x) * np.sin(x)
In [32]: plot(x, y, 'bo-')
Out[32]: [<matplotlib.lines.Line2D at 0x3f29750>]
In [33]: savefig('demo.png', transparent=True)
Result:
Of course, that plot doesn't demonstrate the transparency. Here's a screenshot of the PNG file displayed using the ImageMagick display
command. The checkerboard pattern is the background that is visible through the transparent parts of the PNG file.
We can select required fields over values.
Employee.objects.all().values('eng_name','rank')
Also remember that with a command like:
bower search twitter
You get a result with a list of any package related to twitter. This way you are up to date of everything regarding Twitter and Bower like for instance knowing if there is brand new bower component.
The Chromium team is currently developing the Idle Detection API. It is available as an origin trial since Chrome 88, which is already the 2nd origin trial for this feature. An earlier origin trial went from Chrome 84 through Chrome 86.
It can also be enabled via a flag:
Enabling via chrome://flags
To experiment with the Idle Detection API locally, without an origin trial token, enable the
#enable-experimental-web-platform-features
flag in chrome://flags.
A demo can be found here:
It has to be noted though that this API is permission-based (as it should be, otherwise this could be misused to monitor a user's behaviour!).
Another example, expression works for negative superscripts without the need for quotes around the negative number:
title(xlab=expression("Nitrate Loading in kg ha"^-1*"yr"^-1))
and you only need the * to separate sections as mentioned above (when you write a superscript or subscript and need to add more text to the expression after).
@ts-expect-error
TS 3.9 introduces a new magic comment. @ts-expect-error
will:
@ts-ignore
if (false) {
// @ts-expect-error: Let's ignore a single compiler error like this unreachable code
console.log("hello"); // compiles
}
// If @ts-expect-error didn't suppress anything at all, we now get a nice warning
let flag = true;
// ...
if (flag) {
// @ts-expect-error
// ^~~~~~~~~~~~~~~^ error: "Unused '@ts-expect-error' directive.(2578)"
console.log("hello");
}
@ts-ignore
and @ts-expect-error
can be used for all sorts of compiler errors. For type issues (like in OP), I recommend one of the following alternatives due to narrower error suppression scope:
? Use any
type
// type assertion for single expression
delete ($ as any).summernote.options.keyMap.pc.TAB;
// new variable assignment for multiple usages
const $$: any = $
delete $$.summernote.options.keyMap.pc.TAB;
delete $$.summernote.options.keyMap.mac.TAB;
? Augment JQueryStatic
interface
// ./global.d.ts
interface JQueryStatic {
summernote: any;
}
// ./main.ts
delete $.summernote.options.keyMap.pc.TAB; // works
In other cases, shorthand module declarations or module augmentations for modules with no/extendable types are handy utilities. A viable strategy is also to keep not migrated code in .js
and use --allowJs
with checkJs: false
.
If you want a previous version of file, I would recommend using git checkout.
git checkout <commit-hash>
Doing this will send you back in time, it does not affect the current state of your project, you can come to mainline git checkout mainline
but when you add a file in the argument, that file is brought back to you from a previous time to your current project time, i.e. your current project is changed and needs to be committed.
git checkout <commit-hash> -- file_name
git add .
git commit -m 'file brought from previous time'
git push
The advantage of this is that it does not delete history, and neither does revert a particular code changes (git revert)
Check more here https://www.atlassian.com/git/tutorials/undoing-changes#git-checkout
I found to be the the askpass
command useful
password=$(/lib/cryptsetup/askpass "Give a password")
Every input character is replaced by *. See: Give a password ****
You can also do this with ArgueJS:
function (){
arguments = __({nodebox: undefined, str: [String: "hai"]})
// and now on, you can access your arguments by
// arguments.nodebox and arguments.str
}
Try this way:
select * from tab
where DateCol between DateAdd(DD,-7,GETDATE() ) and GETDATE()
A modification to @igorsales answer
class Object
def deep_symbolize_keys
return self.inject({}){|memo,(k,v)| memo[k.to_sym] = v.deep_symbolize_keys; memo} if self.is_a? Hash
return self.inject([]){|memo,v | memo << v.deep_symbolize_keys; memo} if self.is_a? Array
return self
end
end
I might given a wrong direction, but, I like this trick.
Using Windows Explorer, pointing to any directory you want, type "cmd" in the address bar it will open Windows command prompt in that directory.
If you have the "Git" directory in your path, in the same way, you can type "git-bash" in the address bar and a Git Shell will open in that directory.
Pure Virtual Functions are mostly used to define:
a) abstract classes
These are base classes where you have to derive from them and then implement the pure virtual functions.
b) interfaces
These are 'empty' classes where all functions are pure virtual and hence you have to derive and then implement all of the functions.
Pure virtual functions are actually functions which have no implementation in base class and have to be implemented in derived class.
Setattr: We use setattr to add an attribute to our class instance. We pass the class instance, the attribute name, and the value. and with getattr we retrive these values
For example
Employee = type("Employee", (object,), dict())
employee = Employee()
# Set salary to 1000
setattr(employee,"salary", 1000 )
# Get the Salary
value = getattr(employee, "salary")
print(value)
You'll need to either insert BR
tag appropriately in the resulting string, or use for example a PRE
tag so that the formatting of the stringify
is retained:
var data = { a: 1, b: 2 };
var Hello = React.createClass({
render: function() {
return <div><pre>{JSON.stringify(data, null, 2) }</pre></div>;
}
});
React.render(<Hello />, document.getElementById('container'));
class PrettyPrintJson extends React.Component {
render() {
// data could be a prop for example
// const { data } = this.props;
return (<div><pre>{JSON.stringify(data, null, 2) }</pre></div>);
}
}
ReactDOM.render(<PrettyPrintJson/>, document.getElementById('container'));
const PrettyPrintJson = ({data}) => {
// (destructured) data could be a prop for example
return (<div><pre>{ JSON.stringify(data, null, 2) }</pre></div>);
}
Or, ...
const PrettyPrintJson = ({data}) => (<div><pre>{
JSON.stringify(data, null, 2) }</pre></div>);
(You might even want to use a memo, 16.6+)
const PrettyPrintJson = React.memo(({data}) => (<div><pre>{
JSON.stringify(data, null, 2) }</pre></div>));
Use round
, floor
or ceil
methods to round it to the closest integer, along with intval()
which is limited.
http://php.net/manual/en/function.round.php
Since no one mentioned this, there's one more tool: DED homepage
Install how-to and some explanations: Installation.
It was used in a quite interesting study of the security of top market apps(not really related, just if you're curious): A Survey of Android Application Security
Declare the parameter in test.ps1:
Param(
[Parameter(Mandatory=$True,Position=1)]
[string]$input_dir,
[Parameter(Mandatory=$True)]
[string]$output_dir,
[switch]$force = $false
)
Run the script from Run OR Windows Task Scheduler:
powershell.exe -command "& C:\FTP_DATA\test.ps1 -input_dir C:\FTP_DATA\IN -output_dir C:\FTP_DATA\OUT"
or,
powershell.exe -command "& 'C:\FTP DATA\test.ps1' -input_dir 'C:\FTP DATA\IN' -output_dir 'C:\FTP DATA\OUT'"
UPDATE 2019. If you have dedicated server and SSD or better NVM, 3.5GHZ. You shouldn't use buffering to make faster loaded website in 100ms-150ms.
Becouse network is slowly than proccesing script in the 2019 with performance servers (severs,memory,disk) and with turn on APC PHP :) To generated script sometimes need only 70ms another time is only network takes time, from 10ms up to 150ms from located user-server.
so if you want be fast 150ms, buffering make slowl, becouse need extra collection buffer data it make extra cost. 10 years ago when server make 1s script, it was usefull.
Please becareful output_buffering have limit if you would like using jpg to loading it can flush automate and crash sending.
Cheers.
You can make fast river or You can make safely tama :)
You can disabled the many of the outputs of hibernate setting this props of hibernate (hb configuration) a false:
hibernate.show_sql
hibernate.generate_statistics
hibernate.use_sql_comments
But if you want to disable all console info you must to set the logger level a NONE of FATAL of class org.hibernate
like Juha say.
json_encode($data) //converts an array to JSON string
json_decode($jsonString) //converts json string to php array
WHY JSON : You can use it with most of the programming languages, string created by serialize() function of php is readable in PHP only, and you will not like to store such things in your databases specially if database is shared among applications written in different programming languages
POCO is simply an object that does not take a dependency on an external framework. It is PLAIN.
Whether a POCO has behaviour or not it's immaterial.
A DTO may be POCO as may a domain object (which would typically be rich in behaviour).
Typically DTOs are more likely to take dependencies on external frameworks (eg. attributes) for serialisation purposes as typically they exit at the boundary of a system.
In typical Onion style architectures (often used within a broadly DDD approach) the domain layer is placed at the centre and so its objects should not, at this point, have dependencies outside of that layer.
When using the for loop, the value of s is a Map.Entry element, meaning that you can get the key from s.key and the value from s.value
From your question all I can understand is that you already have some hover effect on your button which you want remove. For that either remove that css which causes the hover effect or override it.
For overriding, do this
.buttonDisabled:hover
{
//overriding css goes here
}
For example if your button's background color changes on hover from red to blue. In the overriding css you will make it as red so that it doesnt change.
Also go through all the rules of writing and overriding css. Get familiar with what css will have what priority.
Best of luck.
(ansible 2.9.6 ansible-lint 4.2.0)
See ansible-lint default rules. The condition below causes E602 Don’t compare to empty string
when: test_myscript.stderr != ""
Correct syntax and also "Ansible Galaxy Warning-Free" option is
when: test_myscript.stderr | length > 0
Quoting from source code
"Use
when: var|length > 0
rather thanwhen: var != ""
(or ' 'converselywhen: var|length == 0
rather thanwhen: var == ""
)"
Notes
- debug:
msg: "Empty string '{{ var }}' evaluates to False"
when: not var
vars:
var: ''
- debug:
msg: "Empty list {{ var }} evaluates to False"
when: not var
vars:
var: []
give
"msg": "Empty string '' evaluates to False"
"msg": "Empty list [] evaluates to False"
ANSIBLE_CONDITIONAL_BARE_VARS=false
the condition works fine but setting ANSIBLE_CONDITIONAL_BARE_VARS=true
the condition will fail - debug:
msg: "String '{{ var }}' evaluates to True"
when: var
vars:
var: 'abc'
gives
fatal: [localhost]: FAILED! =>
msg: |-
The conditional check 'var' failed. The error was: error while
evaluating conditional (var): 'abc' is undefined
Explicit cast to Boolean prevents the error but evaluates to False i.e. will be always skipped (unless var='True'
). When the filter bool
is used the options ANSIBLE_CONDITIONAL_BARE_VARS=true
and ANSIBLE_CONDITIONAL_BARE_VARS=false
have no effect
- debug:
msg: "String '{{ var }}' evaluates to True"
when: var|bool
vars:
var: 'abc'
gives
skipping: [localhost]
- include_tasks: teardown.yml
when: teardown
- include_tasks: provision.yml
when: not teardown
" based on a variable you define as a string (with quotation marks around it):"
In Ansible 2.7 and earlier, the two conditions above evaluated as True and False respectively if teardown: 'true'
In Ansible 2.7 and earlier, both conditions evaluated as False if teardown: 'false'
In Ansible 2.8 and later, you have the option of disabling conditional bare variables, so when: teardown always evaluates as True and when: not teardown always evaluates as False when teardown is a non-empty string (including 'true' or 'false')
"Expect that this setting eventually will be deprecated after 2.12"
you can get the json string as a param of your ActionResult
and afterwards serialize it using JSON.Net
HERE an example is being shown
in order to receive it in the serialized form as a param of the controller action you must either write a custom model binder or a Action filter (OnActionExecuting) so that the json string is serialized into the model of your liking and is available inside the controller body for use.
HERE is an implementation using the dynamic object
Go to Behavior > Site Content > All Pages and put your URI into the search box.
You are trying to execute an asynchronous function
in a synchronous way, which is unfortunately not possible in Javascript
.
As you guessed correctly, the roomId=results
.... is executed when the loading from the DB completes, which is done asynchronously, so AFTER the resto of your code is completed.
Look at this article, it talks about .insert and not .find
, but the idea is the same : http://metaduck.com/01-asynchronous-iteration-patterns.html
You should be able to do this if you create the column using the GUI in Management Studio. I believe Management studio is actually completely recreating the table, which is why this appears to happen.
As others have mentioned, the order of columns in a table doesn't matter, and if it does there is something wrong with your code.
Use double quotes instead of single quote eg :
where('customer.name', 'LIKE', "%$findcustomer%")
Below is my code:
public function searchCustomer($findcustomer)
{
$customer = DB::table('customer')
->where('customer.name', 'LIKE', "%$findcustomer%")
->orWhere('customer.phone', 'LIKE', "%$findcustomer%")
->get();
return View::make("your view here");
}
On Mac OS X (and FreeBSD):
ps -p $$ -axco command | sed -n '$p'
$(document).ready(function() {
$('#div_one').bind('click', function() {
$('#div_two').addClass('large');
});
});
If I understood your question.
Or you can modify css directly:
var $speech = $('div.speech');
var currentSize = $speech.css('fontSize');
$speech.css('fontSize', '10px');
FROM_UNIXTIME(unix_timestamp, [format])
is all you need
FROM_UNIXTIME(user.registration, '%Y-%m-%d') AS 'date_formatted'
FROM_UNIXTIME
gets a number value and transforms it to a DATE
object,
or if given a format string, it returns it as a string.
The older solution was to get the initial date object and format it with a second function DATE_FORMAT
... but this is no longer necessary
You have to drop it and recreate it, but you don't have to incur the cost of revalidating the data if you don't want to.
alter table t drop constraint ck ;
alter table t add constraint ck check (n < 0) enable novalidate;
The enable novalidate
clause will force inserts or updates to have the constraint enforced, but won't force a full table scan against the table to verify all rows comply.
In my case, I replaced the src taq using:
$('#gmap_canvas').attr('src', newSrc);
_x000D_
You have three different problems. First of all, values in HTML tags should be quoted! Not doing this can confuse the browser, and may cause some troubles (although it is likely not the case here). Second, you should actually assign a function to the onclick variable, as someone else meantioned. Not only is this the proper way to do it going forward, but it makes things much simpler if you are trying to use local variables in the onclick function. Finally, you can try either addEventListener or jQuery, jQuery has the advantage of a nicer interface.
Oh, and make sure your HTML validates! That could be an issue.
Or in C# 3.0 using System.Linq
you can skip the intermediate list:
private Update BuildMetaData(MetaData[] nvPairs)
{
Update update = new Update();
var ip = from nv in nvPairs
select new InputProperty()
{
Name = "udf:" + nv.Name,
Val = nv.Value
};
update.Items = ip.ToArray();
return update;
}
For what it is worth, I wanted to mention that in my case, the problem was coming from an AFTER INSERT Trigger!
These are not super visible so you might be searching for a while!
You can also have a global user git .gitignore
file that will apply automatically to all your repos. This is useful for IDE and editor files (e.g. swp
and *~
files for Vim). Change directory locations to suit your OS.
Add to your ~/.gitconfig
file:
[core]
excludesfile = /home/username/.gitignore
Create a ~/.gitignore
file with file patterns to be ignored.
Save your dot files in another repo so you have a backup (optional).
Any time you copy, init or clone a repo, your global gitignore file will be used as well.
I traversed the collection of UIWebView's subviews and set their backgrounds to [UIColor blackColor], the same color as the webpage background. The view will still bounce but it will not show that ugly dark grey background.
If you just have included a layout file at the beginning of onCreate()
inside setContentView
and want to get this layout to add new elements programmatically try this:
ViewGroup linearLayout = (ViewGroup) findViewById(R.id.linearLayoutID);
then you can create a new Button
for example and just add it:
Button bt = new Button(this);
bt.setText("A Button");
bt.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
linerLayout.addView(bt);
Expanded from @SeaBrightSystems answer, you could try this:
$s1 = "textasstringwoohoo";
$arr = str_split($s1); //$arr now has character array
grep's -A 1
option will give you one line after; -B 1
will give you one line before; and -C 1
combines both to give you one line both before and after, -1
does the same.
Use replace method of string like the following way:
String x="\"abcd";
String z=x.replace("\"", "");
System.out.println(z);
Output:
abcd
just remove float: left
and replace align with margin: 0 auto
and it will be centered.
I use it every time I refer to an instance variable, even if I don't need to. I think it makes the code more clear.
document.activeElement
may default to the <body>
element if no focusable elements are in focus. Additionally, if an element is focused and the browser window is blurred, activeElement
will continue to hold the focused element.
If either of these two behaviors are not desirable, consider a CSS-based approach: document.querySelector( ':focus' )
.
If you're looking for an online calculator for converting DP, SP, inches, millimeters, points or pixels to and from one another at different screen densities, this is the most complete tool I know of.
With C++11 also came a regular expression module, which of course can be used to trim leading or trailing spaces.
Maybe something like this:
std::string ltrim(const std::string& s)
{
static const std::regex lws{"^[[:space:]]*", std::regex_constants::extended};
return std::regex_replace(s, lws, "");
}
std::string rtrim(const std::string& s)
{
static const std::regex tws{"[[:space:]]*$", std::regex_constants::extended};
return std::regex_replace(s, tws, "");
}
std::string trim(const std::string& s)
{
return ltrim(rtrim(s));
}
I tried the other answers here as well as a few others. I even stopped and restarted the SQL services. Nothing worked.
However, restarting my computer did work.
append([]int{1,2}, []int{3,4}...)
will work. Passing arguments to ...
parameters.
If f
is variadic with a final parameter p
of type ...T
, then within f
the type of p
is equivalent to type []T
.
If f
is invoked with no actual arguments for p
, the value passed to p
is nil
.
Otherwise, the value passed is a new slice of type []T
with a new underlying array whose successive elements are the actual arguments, which all must be assignable to T
. The length and capacity of the slice is therefore the number of arguments bound to p
and may differ for each call site.
Given the function and calls
func Greeting(prefix string, who ...string)
Greeting("nobody")
Greeting("hello:", "Joe", "Anna", "Eileen")
Here's a comprehensive yet non-exhaustive list of examples of list
operations and whether or not they are thread safe.
Hoping to get an answer regarding the obj in a_list
language construct here.
I'm using Altova DiffDog which has options to compare XML files structurally (ignoring string data).
This means that (if checking the 'ignore text' option):
<foo a="xxx" b="xxx">xxx</foo>
and
<foo b="yyy" a="yyy">yyy</foo>
are equal in the sense that they have structural equality. This is handy if you have example files that differ in data, but not structure!
Look at the Subfloats section of http://en.wikibooks.org/wiki/LaTeX/Floats,_Figures_and_Captions.
\begin{figure}[htp]
\centering
\label{figur}\caption{equation...}
\subfloat[Subcaption 1]{\label{figur:1}\includegraphics[width=60mm]{explicit3185.eps}}
\subfloat[Subcaption 2]{\label{figur:2}\includegraphics[width=60mm]{explicit3183.eps}}
\\
\subfloat[Subcaption 3]{\label{figur:3}\includegraphics[width=60mm]{explicit1501.eps}}
\subfloat[Subcaption 4]{\label{figur:4}\includegraphics[width=60mm]{explicit23185.eps}}
\\
\subfloat[Subcaption 5]{\label{figur:5}\includegraphics[width=60mm]{explicit23183.eps}}
\subfloat[Subcaption 6]{\label{figur:6}\includegraphics[width=60mm]{explicit21501.eps}}
\end{figure}
Received this error while using the openAM Fedlet on IIS7
Changing the user account for the default website resolved the issue. Ideally, you would want this to be a service account. Perhaps even the IUSR account. Suggest looking up methods for IIS hardening to nail it down completely.
Currently VARCHAR behaves exactly the same as VARCHAR2. However, the type VARCHAR
should not be used as it is reserved for future usage.
Taken from: Difference Between CHAR, VARCHAR, VARCHAR2
By 'super-cool LINQ way' you might be talking about the way that LINQ makes functional programming a lot more palatable with the use of extension methods. I mean, the syntactic sugar that allows functions to be chained in a visually linear way (one after the other) instead of nesting (one inside the other). For example:
int totalEven = Enumerable.Sum(Enumerable.Where(myInts, i => i % 2 == 0));
can be written like this:
int totalEven = myInts.Where(i => i % 2 == 0).Sum();
You can see how the second example is easier to read. You can also see how more functions can be added with less of the indentation problems or the Lispy closing parens appearing at the end of the expression.
A lot of the other answers state that the String.Join
is the way to go because it is the fastest or simplest to read. But if you take my interpretation of 'super-cool LINQ way' then the answer is to use String.Join
but have it wrapped in a LINQ style extension method that will allow you to chain your functions in a visually pleasing way. So if you want to write sa.Concatenate(", ")
you just need to create something like this:
public static class EnumerableStringExtensions
{
public static string Concatenate(this IEnumerable<string> strings, string separator)
{
return String.Join(separator, strings);
}
}
This will provide code that is as performant as the direct call (at least in terms of algorithm complexity) and in some cases may make the code more readable (depending on the context) especially if other code in the block is using the chained function style.
In my case I had a problem with react, so I started doing:
npm install @types/react
and then to the
npm install @types/react-dom
This worked for me
DateTime.ParseExact(input,"yyyyMMdd HH:mm",null);
assuming you meant to say that minutes followed the hours, not seconds - your example is a little confusing.
The ParseExact documentation details other overloads, in case you want to have the parse automatically convert to Universal Time or something like that.
As @Joel Coehoorn mentions, there's also the option of using TryParseExact, which will return a Boolean value indicating success or failure of the operation - I'm still on .Net 1.1, so I often forget this one.
If you need to parse other formats, you can check out the Standard DateTime Format Strings.
If you have the GitHub for Windows application, you can delete a file in 5 easy steps:
To expand/correct on the first answer above, it's not translation that String.format would help with, actually.
What String.format will help with is when you're printing a date/time (or a numeric format, etc), where there are localization(l10n) differences (ie, some countries will print 04Feb2009 and others will print Feb042009).
With translation, you're just talking about moving any externalizable strings (like error messages and what-not) into a property bundle so that you can use the right bundle for the right language, using ResourceBundle and MessageFormat.
Looking at all the above, I'd say that performance-wise, String.format vs. plain concatenation comes down to what you prefer. If you prefer looking at calls to .format over concatenation, then by all means, go with that.
After all, code is read a lot more than it's written.
Why not just try opening the file ? fs.open('YourFile', 'a', function (err, fd) { ... })
anyway after a minute search try this :
var path = require('path');
path.exists('foo.txt', function(exists) {
if (exists) {
// do something
}
});
// or
if (path.existsSync('foo.txt')) {
// do something
}
For Node.js v0.12.x and higher
Both path.exists
and fs.exists
have been deprecated
*Edit:
Changed: else if(err.code == 'ENOENT')
to: else if(err.code === 'ENOENT')
Linter complains about the double equals not being the triple equals.
Using fs.stat:
fs.stat('foo.txt', function(err, stat) {
if(err == null) {
console.log('File exists');
} else if(err.code === 'ENOENT') {
// file does not exist
fs.writeFile('log.txt', 'Some log\n');
} else {
console.log('Some other error: ', err.code);
}
});
Well, does sleep
even exist on your Windows XP box? According to this post: http://malektips.com/xp_dos_0002.html sleep
isn't available on Windows XP, and you have to download the Windows 2003 Resource Kit in order to get it.
Chakrit's answer gives you another way to pause, too.
Try running sleep 10
from a command prompt.
For Intellij Idea users this commands before even importing project might help :
./gradlew build
./gradlew idea
in addition,if you try to use CustomActionBarTheme,make sure there is
<application android:theme="@style/CustomActionBarTheme" ... />
in AndroidManifest.xml
not
<application android:theme="@android:style/CustomActionBarTheme" ... />
Sometimes in order to write less code it is used to have SQL server set fields like date, time and ID on insert by setting the default value for fields to GETDATE()
or NEWID()
.
In such cases Auto Generated Value property of those fields in entity classes should be set to true.
This way you do not need to set values in code (preventing energy consumption!!!) and never see that exception.
You have declared an array that can store 8 elements not 9.
this.posStatus = new int[8];
It means postStatus will contain 8 elements from index 0 to 7.
There is no such thing as "SOAP protocol". SOAP is an XML schema.
It usually runs over HTTP (port 80), however.
I use a includes.txt
file with all my files in the right order
the I execute pandoc like this:
pandoc -s $(cat includes.txt) --quiet -f markdown -t html5 --css pandoc.css -o index.html
Works like a charm!
Use this code
<input type="number" step="0.01" name="amount" placeholder="0.00">
By default Step value for HTML5 Input elements is step="1".
LENGTH()
does return the string length (just verified). I suppose that your data is padded with blanks - try
SELECT typ, LENGTH(TRIM(t1.typ))
FROM AUTA_VIEW t1;
instead.
As OraNob
mentioned, another cause could be that CHAR
is used in which case LENGTH()
would also return the column width, not the string length. However, the TRIM()
approach also works in this case.
As others have pointed out, using the * operator for a mutable object duplicates references, so if you change one you change them all. If you want to create independent instances of a mutable object, your xrange syntax is the most Pythonic way to do this. If you are bothered by having a named variable that is never used, you can use the anonymous underscore variable.
[e for _ in xrange(n)]
I suspect you haven't authorize your Excel installation to run macro from an automated Excel. It is a security protection by default at installation. To change this:
After some trial and error, I found that
$computername = $env:computername
works to get a computer name, but sending $computername
to a file via Add-Content doesn't work.
I also tried $computername.Value
.
Instead, if I use
$computername = get-content env:computername
I can send it to a text file using
$computername | Out-File $file
Better use @Inject all the time. Because it is java configuration approach(provided by sun) which makes our application agnostic to the framework. So if you spring also your classes will work.
If you use @Autowired it will works only with spring because @Autowired is spring provided annotation.
You can do this using the java.time classes built into Java 8 and later.
ZonedDateTime temporal = ...
long epochSecond = temporal.getLong(INSTANT_SECONDS);
int nanoOfSecond = temporal.get(NANO_OF_SECOND);
Date date = new Date(epochSecond * 1000 + nanoOfSecond / 1000000);
Function:
$(function() {
$.fn.click_inout = function(clickin_handler, clickout_handler) {
var item = this;
var is_me = false;
item.click(function(event) {
clickin_handler(event);
is_me = true;
});
$(document).click(function(event) {
if (is_me) {
is_me = false;
} else {
clickout_handler(event);
}
});
return this;
}
});
Usage:
this.input = $('<input>')
.click_inout(
function(event) { me.ShowTree(event); },
function() { me.Hide(); }
)
.appendTo(this.node);
And functions are very simple:
ShowTree: function(event) {
this.data_span.show();
}
Hide: function() {
this.data_span.hide();
}
As it mentioned in another answers, a reference is inherently const.
int &ref = obj;
Once you initialized a reference with an object, you can't unbound this reference with its object it refers to. A reference works just like an alias.
When you declare a const
reference, it is nothing but a reference which refers to a const object.
const int &ref = obj;
The declarative sentences above like const
and int
is determining the available features of the object which will be referenced by the reference. To be more clear, I want to show you the pointer
equivalent of a const
reference;
const int *const ptr = &obj;
So the above line of code is equivalent to a const
reference in its working way. Additionally, there is a one last point which I want to mention;
A reference must be initialized only with an object
So when you do this, you are going to get an error;
int &r = 0; // Error: a nonconst reference cannot be initialized to a literal
This rule has one exception. If the reference is declared as const, then you can initialize it with literals as well;
const int &r = 0; // a valid approach
Quick List: There are a number of common types of
setup.exe
files. Here are some of them in a "short-list". More fleshed-out details here (towards bottom).
Setup.exe Extract: (various flavors to try)
setup.exe /a setup.exe /s /extract_all setup.exe /s /extract_all:[path] setup.exe /stage_only setup.exe /extract "C:\My work" setup.exe /x setup.exe /x [path] setup.exe /s /x /b"C:\FolderInWhichMSIWillBeExtracted" /v"/qn" dark.exe -x outputfolder setup.exe
dark.exe
is a WiX binary - install WiX to extract a WiX setup.exe (as of now). More (section 4).
There is always:
setup.exe /?
MSI Extract: msiexec.exe
/ File.msi
extraction:
msiexec /a File.msi msiexec /a File.msi TARGETDIR=C:\MyInstallPoint /qn
Many Setup Tools: It is impossible to cover all the different kinds of possible setup.exe
files. They might feature all kinds of different command line switches. There are so many possible tools that can be used. (non-MSI
,MSI
, admin-tools
, multi-platform
, etc...).
NSIS / Inno: Commmon, free tools such as Inno Setup
seem to make extraction hard (unofficial unpacker, not tried by me, run by virustotal.com). Whereas NSIS
seems to use regular archives that standard archive software (7-zip et al) can open and extract.
General Tricks: One trick is to launch the
setup.exe
and look in the1)
system's temp folder for extracted files
. Another trick is to use2)
7-Zip, WinRAR, WinZip
or similar archive tools to see if they can read the format. Some claim success by3)
opening the setup.exe in Visual Studio
. Not a technique I use.4)
And there is obviously application repackaging
- capturing the changes done to a computer after a setup has run and clean it up - requires a special tool (most of the free ones come and go, Advanced Installer Architect and AdminStudio are big players).
UPDATE: A quick presentation of various deployment tools used to create installers: How to create windows installer (comprehensive links).
And a simpler list view of the most used development tools as of now (2018), for quicker reading and overview.
And for safekeeping:
- Create MSI from extracted setup files (towards bottom)
- Regarding silent installation using Setup.exe generated using Installshield 2013 (.issuite) project file (different kinds of Installshield setup.exe files)
- What is the purpose of administrative installation initiated using msiexec /a?.
Just a disclaimer: A setup.exe
file can contain an embedded MSI, it can be a legacy style (non-MSI) installer or it can be just a regular executable with no means of extraction whatsoever. The "discussion" below first presents the use of admin images for MSI files and how to extract MSI files from setup.exe files. Then it provides some links to handle other types of setup.exe files. Also see the comments section.
UPDATE: a few sections have now been added directly below, before the description of MSI file extract using administrative installation. Most significantly a blurb about extracting WiX setup.exe bundles (new kid on the block). Remember that a "last resort" to find extracted setup files, is to launch the installer and then look for extracted files in the temp folder (Hold down Windows Key, tap R, type %temp%
or %tmp%
and hit Enter) - try the other options first though - for reliability reasons.
Apologies for the "generalized mess" with all this heavy inter-linking. I do believe that you will find what you need if you dig enough in the links, but the content should really be cleaned up and organized better.
General links:
Extract content:
Vendor links:
Tech Note: The WiX toolkit now delivers setup.exe
files built with the bootstrapper tool Burn
that you need the toolkit's own dark.exe
decompiler to extract. Burn is used to build setup.exe files that can install several embedded MSI or executables in a specified sequence. Here is a sample extraction command:
dark.exe -x outputfolder MySetup.exe
Before you can run such an extraction, some prerequisite steps are required:
command prompt
, CD
to the folder where the setup.exe
resides. Then specify the above command and press EnterMSI or Windows Installer has built-in support for this - the extraction of files from an MSI file. This is called an administrative installation. It is basically intended as a way to create a network installation point from which the install can be run on many target computers. This ensures that the source files are always available for any repair operations.
Note that running an admin install versus using a zip tool to extract the files is very different! The latter will not adjust the media layout of the media table so that the package is set to use external source files - which is the correct way. Always prefer to run the actual admin install over any hacky zip extractions. As to compression, there are actually three different compression algorithms used for the cab files inside the MSI file format: MSZip, LZX, and Storing (uncompressed). All of these are handled correctly by doing an admin install.
Important: Windows Installer caches installed MSI files on the system for repair, modify and uninstall scenarios. Starting with Windows 7 (MSI version 5) the MSI files are now cached full size to avoid breaking the file signature that prevents the UAC prompt on setup launch (a known Vista problem). This may cause a tremendous increase in disk space consumption (several gigabytes for some systems). To prevent caching a huge MSI file, you should run an admin-install of the package before installing. This is how a company with proper deployment in a managed network would do things, and it will strip out the cab files and make a network install point with a small MSI file and files besides it.
It is recommended to read more about admin-installs since it is a useful concept, and I have written a post on stackoverflow: What is the purpose of administrative installation initiated using msiexec /a?.
In essence the admin install is important for:
Please read the stackoverflow post linked above for more details. It is quite an important concept for system administrators, application packagers, setup developers, release managers, and even the average user to see what they are installing etc...
You can perform an admin-install in a few different ways depending on how the installer is delivered. Essentially it is either delivered as an MSI file or wrapped in an setup.exe file.
Run these commands from an elevated command prompt, and follow the instructions in the GUI for the interactive command lines:
MSI files:
msiexec /a File.msi
that's to run with GUI, you can do it silently too:
msiexec /a File.msi TARGETDIR=C:\MyInstallPoint /qn
setup.exe files:
setup.exe /a
A setup.exe file can also be a legacy style setup (non-MSI) or the dreaded Installscript MSI file type - a well known buggy Installshield project type with hybrid non-standards-compliant MSI format. It is essentially an MSI with a custom, more advanced GUI, but it is also full of bugs.
For legacy setup.exe files the /a will do nothing, but you can try the /extract_all:[path] switch as explained in this pdf. It is a good reference for silent installation and other things as well. Another resource is this list of Installshield setup.exe command line parameters.
MSI patch files (*.MSP) can be applied to an admin image to properly extract its files. 7Zip will also be able to extract the files, but they will not be properly formatted.
Finally - the last resort - if no other way works, you can get hold of extracted setup files by cleaning out the temp folder on your system, launch the setup.exe interactively and then wait for the first dialog to show up. In most cases the installer will have extracted a bunch of files to a temp folder. Sometimes the files are plain, other times in CAB format, but Winzip, 7Zip or even Universal Extractor (haven't tested this product) - may be able to open these.
If you want to compare image for similarity,I suggest you to used OpenCV. In OpenCV, there are few feature matching and template matching. For feature matching, there are SURF, SIFT, FAST and so on detector. You can use this to detect, describe and then match the image. After that, you can use the specific index to find number of match between the two images.
I'd personally make use of the table.insert
function:
table.insert(a,"b");
This saves you from having to iterate over the whole table therefore saving valuable resources such as memory and time.
I'm not sure if this approach has been taken but a work around i'm using is:
from multiprocessing import Pool
t = None
def run(n):
return t.f(n)
class Test(object):
def __init__(self, number):
self.number = number
def f(self, x):
print x * self.number
def pool(self):
pool = Pool(2)
pool.map(run, range(10))
if __name__ == '__main__':
t = Test(9)
t.pool()
pool = Pool(2)
pool.map(run, range(10))
Output should be:
0
9
18
27
36
45
54
63
72
81
0
9
18
27
36
45
54
63
72
81
Ctrl-/ to toggle "//" comments and Ctrl-Shift-/ to toggle "/* */" comments. At least for Java, anyway - other tooling may have different shortcuts.
Ctrl-\ will remove a block of either comment, but won't add comments.
Note: As for Eclipse CDT 4.4.2, Ctrl-Shift-/ will not uncomment a "/* */" block comment. Use Ctrl-Shift-\ in that case.
EDIT: It's Ctrl on a PC, but on a Mac the shortcuts may all be Cmd instead. I don't have a Mac myself, so can't easily check.
For some reason only this worked for me today. All other variants ended up in bad json error from API.
Besides, yet another variant for creating required POST request with JSON payload.
request.post({_x000D_
uri: 'https://www.googleapis.com/urlshortener/v1/url',_x000D_
headers: {'Content-Type': 'application/json'},_x000D_
body: JSON.stringify({"longUrl": "http://www.google.com/"})_x000D_
});
_x000D_
Are methods using FOR XML PATH like below really that slow? Itzik Ben-Gan writes that this method has good performance in his T-SQL Querying book (Mr. Ben-Gan is a trustworthy source, in my view).
create table #t (id int, name varchar(20))
insert into #t
values (1, 'Matt'), (1, 'Rocks'), (2, 'Stylus')
select id
,Names = stuff((select ', ' + name as [text()]
from #t xt
where xt.id = t.id
for xml path('')), 1, 2, '')
from #t t
group by id
la = lambda x : "even" if not x % 2 else "odd"
PHP 7.4+; with the null coalescing assignment operator
$var ??= '';
PHP 7.0+; with the null coalescing operator
$var = $var ?? '';
PHP 5.3+; with the ternary operator shorthand
isset($var) ?: $var = '';
Or for all/older versions with isset:
$var = isset($var) ? $var : '';
or
!isset($var) && $var = '';
The code below is the simplest way to filter an array with respect to another array. Both arrays can have objects inside them instead of values.
let array1 = [1, 3, 47, 1, 6, 7];
let array2 = [3, 6];
let filteredArray1 = array1.filter(el => array2.includes(el));
console.log(filteredArray1);
_x000D_
Output: [3, 6]
Just remove the 0 and it will add space instead:
>>> print "'%6d'"%4
If you are not root user then, use following commands:
There are two ways to do it -
1.
sudo vi path_to_file/file_name
Press Esc and then type below respectively
:wq //save and exit :q! //exit without saving
When using nano: after you finish editing press ctrl+x then it will ask save Y/N.
If you want to save press Y, if not press N. And press enter to exit the editor.
The count function is meant to be used on
A stdClass is neither of these. The easier/quickest way to accomplish what you're after is
$count = count(get_object_vars($some_std_class_object));
This uses PHP's get_object_vars function, which will return the properties of an object as an array. You can then use this array with PHP's count function.
Alright, think I got it...
Little background first: The reason I needed this was to stick Angular on top of Node Express and have Jade process my partials for me.
So here's whatchya gotta do... (drink beer and spend 20+ hours on it first!!!)...
When you set up your module, save the $routeProvider
globally:
// app.js:
var routeProvider
, app = angular.module('Isomorph', ['ngResource']).config(function($routeProvider){
routeProvider = $routeProvider;
$routeProvider
.when('/', {templateUrl: '/login', controller: 'AppCtrl'})
.when('/home', {templateUrl: '/', controller: 'AppCtrl'})
.when('/login', {templateUrl: '/login', controller: 'AppCtrl'})
.when('/SAMPLE', {templateUrl: '/SAMPLE', controller: 'SAMPLECtrl'})
.when('/map', {templateUrl: '/map', controller: 'MapCtrl'})
.when('/chat', {templateUrl: '/chat', controller: 'ChatCtrl'})
.when('/blog', {templateUrl: '/blog', controller: 'BlogCtrl'})
.when('/files', {templateUrl: '/files', controller: 'FilesCtrl'})
.when('/tasks', {templateUrl: '/tasks', controller: 'TasksCtrl'})
.when('/tasks/new', {templateUrl: '/tasks/new', controller: 'NewTaskCtrl'})
.when('/tasks/:id', {templateUrl: '/tasks', controller: 'ViewTaskCtrl'})
.when('/tasks/:id/edit', {templateUrl: '/tasks', controller: 'EditTaskCtrl'})
.when('/tasks/:id/delete', {templateUrl: '/tasks', controller: 'DeleteTaskCtrl'})
.otherwise({redirectTo: '/login'});
});
// ctrls.js
...
app.controller('EditTaskCtrl', function($scope, $routeParams, $location, $http){
var idParam = $routeParams.id;
routeProvider.when('/tasks/:id/edit/', {templateUrl: '/tasks/' + idParam + '/edit'});
$location.path('/tasks/' + idParam + '/edit/');
});
...
That may be more info than what was needed...
Basically, you'll wanna store your Module's $routeProvider
var globally, eg as routeProvider
so that it can be accessed by your Controllers.
Then you can just use routeProvider
and create a NEW route (you can't 'RESET a route' / 'REpromise'; you must create a new one), I just added a slash (/) at the end so that it is as semantic as the first.
Then (inside your Controller), set the templateUrl
to the view you want to hit.
Take out the controller
property of the .when()
object, lest you get an infinite request loop.
And finally (still inside the Controller), use $location.path()
to redirect to the route that was just created.
If you're interested in how to slap an Angular app onto an Express app, you can fork my repo here: https://github.com/cScarlson/isomorph.
And this method also allows for you to keep the AngularJS Bidirectional Data-Bindings in case you want to bind your HTML to your database using WebSockets: otherwise without this method, your Angular data-bindings will just output {{model.param}}
.
If you clone this at this time, you'll need mongoDB on your machine to run it.
Hope this solves this issue!
Cody
Don't drink your bathwater.
That's how I obtained my:
private class SessionStatusCallback implements Session.StatusCallback {
@Override
public void call(Session session, SessionState state, Exception exception) {
if (exception != null) {
new AlertDialog.Builder(FriendActivity.this)
.setTitle(R.string.login_failed_dialog_title)
.setMessage(exception.getMessage())
.setPositiveButton(R.string.ok_button, null)
.show();
}
So when you re trying to enter without the key, an exception will occur. Facebook put the RIGHT key into this exception. All you need to do is to copy it.
Simply use the .rules('add')
method immediately after creating the element...
var filenumber = 1;
$("#AddFile").click(function () { //User clicks button #AddFile
// create the new input element
$('<li><input type="file" name="FileUpload' + filenumber + '" id="FileUpload' + filenumber + '" /> <a href="#" class="RemoveFileUpload">Remove</a></li>').prependTo("#FileUploader");
// declare the rule on this newly created input field
$('#FileUpload' + filenumber).rules('add', {
required: true, // <- with this you would not need 'required' attribute on input
accept: "image/jpeg, image/pjpeg"
});
filenumber++; // increment counter for next time
return false;
});
You'll still need to use .validate()
to initialize the plugin within a DOM ready handler.
You'll still need to declare rules for your static elements using .validate()
. Whatever input elements that are part of the form when the page loads... declare their rules within .validate()
.
You don't need to use .each()
, when you're only targeting ONE element with the jQuery selector attached to .rules()
.
You don't need the required
attribute on your input element when you're declaring the required
rule using .validate()
or .rules('add')
. For whatever reason, if you still want the HTML5 attribute, at least use a proper format like required="required"
.
Working DEMO: http://jsfiddle.net/8dAU8/5/
<div class="nav-collapse">
<ul class="nav">
<li class="home"><a href="~/Home/Index">Home</a></li>
<li class="Project"><a href="#">Project</a></li>
<li class="Customer"><a href="#">Customer</a></li>
<li class="Staff"><a href="#">Staff</a></li>
<li class="Broker"><a href="~/Home/Broker">Broker</a></li>
<li class="Sale"><a href="#">Sale</a></li>
</ul>
</div>
then for each page you add this:
//home
$(document).ready(function () {
$('.home').addClass('active');
});
//Project page
$(document).ready(function () {
$('.Project').addClass('active');
});
//Customer page
$(document).ready(function () {
$('.Customer').addClass('active');
});
//staff page
$(document).ready(function () {
$('.Staff').addClass('active');
});
$a = 'John' ; <br/>
$b = 'Doe' ; <br/>
$c = $a.$b"<br/>";
An old thread I know, but if you are looking for a responsive solution, this jQuery addition will help:
$(window).on('resize',sticky);
$(document).bind("ready", function() {
sticky();
});
function sticky() {
var fh = $("footer").outerHeight();
$("#push").css({'height': fh});
$("#wrapper").css({'margin-bottom': -fh});
}
Full guide can be found here: https://pixeldesigns.co.uk/blog/responsive-jquery-sticky-footer/
Using the Router
itself will cause issues which you cannot completely overcome to maintain consistent browser experience. In my opinion the best method is to just use a custom directive
and let this reset the scroll on click. The good thing about this, is that if you are on the same url
as that you click on, the page will scroll back to the top as well. This is consistent with normal websites. The basic directive
could look something like this:
import {Directive, HostListener} from '@angular/core';
@Directive({
selector: '[linkToTop]'
})
export class LinkToTopDirective {
@HostListener('click')
onClick(): void {
window.scrollTo(0, 0);
}
}
With the following usage:
<a routerLink="/" linkToTop></a>
This will be enough for most use-cases, but I can imagine a few issues which may arise from this:
universal
because of the usage of window
It is actually quite easy to overcome these issues:
@Directive({
selector: '[linkToTop]'
})
export class LinkToTopDirective implements OnInit, OnDestroy {
@Input()
set linkToTop(active: string | boolean) {
this.active = typeof active === 'string' ? active.length === 0 : active;
}
private active: boolean = true;
private onClick: EventListener = (event: MouseEvent) => {
if (this.active) {
window.scrollTo(0, 0);
}
};
constructor(@Inject(PLATFORM_ID) private readonly platformId: Object,
private readonly elementRef: ElementRef,
private readonly ngZone: NgZone
) {}
ngOnDestroy(): void {
if (isPlatformBrowser(this.platformId)) {
this.elementRef.nativeElement.removeEventListener('click', this.onClick, false);
}
}
ngOnInit(): void {
if (isPlatformBrowser(this.platformId)) {
this.ngZone.runOutsideAngular(() =>
this.elementRef.nativeElement.addEventListener('click', this.onClick, false)
);
}
}
}
This takes most use-cases into account, with the same usage as the basic one, with the advantage of enable/disabling it:
<a routerLink="/" linkToTop></a> <!-- always active -->
<a routerLink="/" [linkToTop]="isActive"> <!-- active when `isActive` is true -->
commercials, don't read if you don't want to be advertised
Another improvement could be made to check whether or not the browser supports passive
events. This will complicate the code a bit more, and is a bit obscure if you want to implement all these in your custom directives/templates. That's why I wrote a little library which you can use to address these problems. To have the same functionality as above, and with the added passive
event, you can change your directive to this, if you use the ng-event-options
library. The logic is inside the click.pnb
listener:
@Directive({
selector: '[linkToTop]'
})
export class LinkToTopDirective {
@Input()
set linkToTop(active: string|boolean) {
this.active = typeof active === 'string' ? active.length === 0 : active;
}
private active: boolean = true;
@HostListener('click.pnb')
onClick(): void {
if (this.active) {
window.scrollTo(0, 0);
}
}
}
You can make this connection in interface builder.
In your storyboard, click the assistant editor at the top of the screen (two circles in the middle).
Ctrl + Click on the textfield in interface builder.
Drag from EditingChanged to inside your view controller class in the assistant view.
Name your function ("textDidChange" for example) and click connect.
Another nice, simple way to measure the similarity between two images:
import sys
from skimage.measure import compare_ssim
from skimage.transform import resize
from scipy.ndimage import imread
# get two images - resize both to 1024 x 1024
img_a = resize(imread(sys.argv[1]), (2**10, 2**10))
img_b = resize(imread(sys.argv[2]), (2**10, 2**10))
# score: {-1:1} measure of the structural similarity between the images
score, diff = compare_ssim(img_a, img_b, full=True)
print(score)
If others are interested in a more powerful way to compare image similarity, I put together a tutorial and web app for measuring and visualizing similar images using Tensorflow.
No you don’t need quotes.
Yes you can. But note that relative URLs are resolved from the URL of your stylesheet.
Better don’t use quotes. I think there are clients that don’t understand them.
A deadlock happens when a thread is waiting for something that never occurs.
Typically, it happens when a thread is waiting on a mutex or semaphore that was never released by the previous owner.
It also frequently happens when you have a situation involving two threads and two locks like this:
Thread 1 Thread 2
Lock1->Lock(); Lock2->Lock();
WaitForLock2(); WaitForLock1(); <-- Oops!
You generally detect them because things that you expect to happen never do, or the application hangs entirely.
Swift 5
This works for cocoa
let bundleRoot = Bundle.main.bundlePath
let manager = FileManager.default
let dirEnum = manager.enumerator(atPath: bundleRoot)
while let filename = dirEnum?.nextObject() as? String {
if filename.hasSuffix(".data"){
print("Files in resource folder: \(filename)")
}
}
This following works better if you need to scroll to an arbitrary item in the list (rather than always to the bottom):
function scrollIntoView(element, container) {
var containerTop = $(container).scrollTop();
var containerBottom = containerTop + $(container).height();
var elemTop = element.offsetTop;
var elemBottom = elemTop + $(element).height();
if (elemTop < containerTop) {
$(container).scrollTop(elemTop);
} else if (elemBottom > containerBottom) {
$(container).scrollTop(elemBottom - $(container).height());
}
}
using this worked for me
git rm -f --cached <filename>
Just subtract the two dates:
select date '2000-01-02' - date '2000-01-01' as dateDiff
from dual;
The result will be the difference in days.
More details are in the manual:
https://docs.oracle.com/cd/E11882_01/server.112/e41084/sql_elements001.htm#i48042
Try this:
import base64
imgdata = base64.b64decode(imgstring)
filename = 'some_image.jpg' # I assume you have a way of picking unique filenames
with open(filename, 'wb') as f:
f.write(imgdata)
# f gets closed when you exit the with statement
# Now save the value of filename to your database
Official Notice: success and error have been deprecated, please use the standard then method instead.
Deprecation Notice: The $http legacy promise methods success and error have been deprecated. Use the standard then method instead. If $httpProvider.useLegacyPromiseExtensions is set to false then these methods will throw $http/legacy error.
link: https://code.angularjs.org/1.5.7/docs/api/ng/service/$http
While @Eli is quite correct that there usually isn't much of a need to do it, it is possible. savefig
takes a bbox_inches
argument that can be used to selectively save only a portion of a figure to an image.
Here's a quick example:
import matplotlib.pyplot as plt
import matplotlib as mpl
import numpy as np
# Make an example plot with two subplots...
fig = plt.figure()
ax1 = fig.add_subplot(2,1,1)
ax1.plot(range(10), 'b-')
ax2 = fig.add_subplot(2,1,2)
ax2.plot(range(20), 'r^')
# Save the full figure...
fig.savefig('full_figure.png')
# Save just the portion _inside_ the second axis's boundaries
extent = ax2.get_window_extent().transformed(fig.dpi_scale_trans.inverted())
fig.savefig('ax2_figure.png', bbox_inches=extent)
# Pad the saved area by 10% in the x-direction and 20% in the y-direction
fig.savefig('ax2_figure_expanded.png', bbox_inches=extent.expanded(1.1, 1.2))
The full figure:
Area inside the second subplot:
Area around the second subplot padded by 10% in the x-direction and 20% in the y-direction:
Small addition to @user995502's answer on how to run the program.
g++ player.cpp main.cpp -o main.out && ./main.out
I highly recommend you use the tobytes
function of the Image
object. After some timing checks this is much more efficient.
def jpg_image_to_array(image_path):
"""
Loads JPEG image into 3D Numpy array of shape
(width, height, channels)
"""
with Image.open(image_path) as image:
im_arr = np.fromstring(image.tobytes(), dtype=np.uint8)
im_arr = im_arr.reshape((image.size[1], image.size[0], 3))
return im_arr
The timings I ran on my laptop show
In [76]: %timeit np.fromstring(im.tobytes(), dtype=np.uint8)
1000 loops, best of 3: 230 µs per loop
In [77]: %timeit np.array(im.getdata(), dtype=np.uint8)
10 loops, best of 3: 114 ms per loop
```
You can use a regular expresion to for example replace all non-alphanumeric characters with commas:
s = Regex.Replace(s, "[^0-9A-Za-z]+", ",");
Note: The +
after the set will make it replace each group of non-alphanumeric characters with a comma. If you want to replace each character with a comma, just remove the +
.
I also like itertuples()
for row in df.itertuples():
print(row.A)
print(row.Index)
since row is a named tuples, if you meant to access values on each row this should be MUCH faster
speed run :
df = pd.DataFrame([x for x in range(1000*1000)], columns=['A'])
st=time.time()
for index, row in df.iterrows():
row.A
print(time.time()-st)
45.05799984931946
st=time.time()
for row in df.itertuples():
row.A
print(time.time() - st)
0.48400020599365234
I encountered this problem lately. Finally, I found my processes were killed just after Opensuse zypper update was called automatically. To disable zypper update solved my problem.
//How decodeURIComponent Works
function proURIDecoder(val)
{
val=val.replace(/\+/g, '%20');
var str=val.split("%");
var cval=str[0];
for (var i=1;i<str.length;i++)
{
cval+=String.fromCharCode(parseInt(str[i].substring(0,2),16))+str[i].substring(2);
}
return cval;
}
document.write(proURIDecoder(window.location.href));
This seems more concise.
pip list --outdated | cut -d ' ' -f1 | xargs -n1 pip install -U
Explanation:
pip list --outdated
gets lines like these
urllib3 (1.7.1) - Latest: 1.15.1 [wheel]
wheel (0.24.0) - Latest: 0.29.0 [wheel]
In cut -d ' ' -f1
, -d ' '
sets "space" as the delimiter, -f1
means to get the first column.
So the above lines becomes:
urllib3
wheel
then pass them to xargs
to run the command, pip install -U
, with each line as appending arguments
-n1
limits the number of arguments passed to each command pip install -U
to be 1
try Integer.toString(integer value);
method as
ed = (EditText)findViewById(R.id.box);
int x = 10;
ed.setText(Integer.toString(x));
To declare a variable as a Decimal
, first declare it as a Variant
and then convert to Decimal
with CDec
. The type would be Variant/Decimal
in the watch window:
Considering that programming floating point arithmetic is not what one has studied during Maths classes at school, one should always try to avoid common pitfalls by converting to decimal whenever possible.
In the example below, we see that the expression:
0.1 + 0.11 = 0.21
is either True
or False
, depending on whether the collectibles (0.1,0.11) are declared as Double
or as Decimal
:
Public Sub TestMe()
Dim preciseA As Variant: preciseA = CDec(0.1)
Dim preciseB As Variant: preciseB = CDec(0.11)
Dim notPreciseA As Double: notPreciseA = 0.1
Dim notPreciseB As Double: notPreciseB = 0.11
Debug.Print preciseA + preciseB
Debug.Print preciseA + preciseB = 0.21 'True
Debug.Print notPreciseA + notPreciseB
Debug.Print notPreciseA + notPreciseB = 0.21 'False
End Sub
Here's a shorter, syncronous version of this answer that can list all directories (hidden or not) in the current directory:
const { lstatSync, readdirSync } = require('fs')
const { join } = require('path')
const isDirectory = source => lstatSync(source).isDirectory()
const getDirectories = source =>
readdirSync(source).map(name => join(source, name)).filter(isDirectory)
Update for Node 10.10.0+
We can use the new withFileTypes
option of readdirSync
to skip the extra lstatSync
call:
const { readdirSync } = require('fs')
const getDirectories = source =>
readdirSync(source, { withFileTypes: true })
.filter(dirent => dirent.isDirectory())
.map(dirent => dirent.name)
If using integers as targets, makes sure they aren't symmetrical at 0.
I.e., don't use classes -1, 0, 1. Use instead 0, 1, 2.
If anyone else is having a nullptr on the searchview variable, I found out that the item setup is a tiny bit different:
old:
android:showAsAction="ifRoom"
android:actionViewClass="android.widget.SearchView"
new:
app:showAsAction="ifRoom|collapseActionView"
app:actionViewClass="androidx.appcompat.widget.SearchView"
pre-android x:
app:showAsAction="ifRoom|collapseActionView"
app:actionViewClass="android.support.v7.widget.SearchView"
For more information, it's updated documentation is located here.
Readers new to this topic will be struck by the endless discussion about what you should do, and the relative absence of lessons from experience. The fact that REST is "preferred" over SOAP is, I suppose, a high-level learning from experience, but goodness we must have progressed from there? It's 2016. Roy's dissertation was in 2000. What have we developed? Was it fun? Was it easy to integrate with? To support? Will it handle the rise of smartphones and flaky mobile connections?
According to ME, real-life networks are unreliable. Requests timeout. Connections are reset. Networks go down for hours or days at a time. Trains go into tunnels with mobile users aboard. For any given request (as occasionally acknowledged in all this discussion) the request can fall in the water on its way, or the response can fall in the water on its way back. In these conditions, issuing PUT, POST and DELETE requests directly against substantive resources has always struck me as a little brutal and naive.
HTTP does nothing to ensure reliable completion of the request-response, and that's just fine because this is properly the job of network-aware applications. Developing such an application, you can jump through hoops to use PUT instead of POST, then more hoops to give a certain kind of error on the server if you detect duplicate requests. Back at the client, you then have to jump through hoops to interpret these errors, refetch, revalidate and repost.
Or you can do this: consider your unsafe requests as ephemeral single-user resources (let's call them actions). Clients request a new "action" on a substantive resource with an empty POST to the resource. POST will be used only for this. Once safely in possession of the URI of the freshly minted action, the client PUTs the unsafe request to the action URI, not the target resource. Resolving the action and updating the "real" resource is properly the job of your API, and is here decoupled from the unreliable network.
The server does the business, returns the response and stores it against the agreed action URI. If anything goes wrong, the client repeats the request (natural behaviour!), and if the server has already seen it, it repeats the stored response and does nothing else.
You will quickly spot the similarity with promises: we create and return the placeholder for the result before doing anything. Also like a promise, an action can succeed or fail one time, but its result can be fetched repeatedly.
Best of all, we give sending and receiving applications a chance to link the uniquely identified action to uniqueness in their respective environments. And we can start to demand, and enforce!, responsible behaviour from clients: repeat your requests as much as you like, but don't go generating a new action until you're in possession of a definitive result from the existing one.
As such, numerous thorny problems go away. Repeated insert requests won't create duplicates, and we don't create the real resource until we're in possession of the data. (database columns can stay not-nullable). Repeated update requests won't hit incompatible states and won't overwrite subsequent changes. Clients can (re)fetch and seamlessy process the original confirmation for whatever reason (client crashed, response went missing, etc.).
Successive delete requests can see and process the original confirmation, without hitting a 404 error. If things take longer than expected, we can respond provisionally, and we have a place where the client can check back for the definitive result. The nicest part of this pattern is its Kung-Fu (Panda) property. We take a weakness, the propensity for clients to repeat a request any time they don't understand the response, and turn it into a strength :-)
Before telling me this is not RESTful, please consider the numerous ways in which REST principles are respected. Clients don't construct URLs. The API stays discoverable, albeit with a little change in semantics. HTTP verbs are used appropriately. If you think this is a huge change to implement, I can tell you from experience that it's not.
If you think you'll have huge amounts of data to store, let's talk volumes: a typical update confirmation is a fraction of a kilobyte. HTTP currently gives you a minute or two to respond definitively. Even if you only store actions for a week, clients have ample chance to catch up. If you have very high volumes, you may want a dedicated acid-compliant key value store, or an in-memory solution.
Simply compare the width of the documents root element (i.e. html element) against the inner portion of the window:
if ((window.innerWidth - document.documentElement.clientWidth) >0) console.log('V-scrollbar active')
If you also need to know the scrollbar width:
vScrollbarWidth = window.innerWidth - document.documentElement.clientWidth;
The answers above didn't help me solve my problem. After a long search I bumped into this partial solution.
I've finally solved my problem with this code to set the input field manually to ng-invalid (to set to ng-valid set it to 'true'):
$scope.myForm.inputName.$setValidity('required', false);
If "keep a positive one" means you want a positive number to stay positive, but also convert a negative number to positive, use abs()
:
>>> abs(-1)
1
>>> abs(1)
1
after several days searching I figured out a possible fix for this issue.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Documento sin título</title>
</head>
<body style="height:100%">
<!-- for Firefox and Chrome compatibility set height:100% in the containing TABLE, the TR parent and the TD itself. -->
<table width="400" border="1" cellspacing="0" cellpadding="0" style="height:100%;">
<tr>
<td>whatever</td>
<td>whatever</td>
<td>whatever</td>
</tr>
<tr style="height:100%;">
<td>whatever dynamic height<br /><br /><br />more content
</td>
<td>whatever</td>
<!-- display,background-color and radius properties in TD BELOW could be placed in an <!--[if IE]> commentary If desired.
This way TD would remain as display:table-cell; in FF and Chrome and would keep working correctly.
If you don't place the properties in IE commentary it will still work in FF and Chorme with a TD display:block;
The Trick for IE is setting the cell to display:block; Setting radius is only an example of whay you may want a DIV 100%height inside a Cell.
-->
<td style="height:100%; width:100%; display:block; background-color:#3C3;border-radius: 0px 0px 1em 0px;">
<div style="width:100%;height:100%;background-color:#3C3;-webkit-border-radius: 0px 0px 0.6em 0px;border-radius: 0px 0px 0.6em 0px;">
Content inside DIV TAG
</div>
</td>
</tr>
</table>
</body>
</html>
Spanish language: El truco es establecer la Tabla, el TR y el TD a height:100%. Esto lo hace compatible con FireFox y Chrome. Internet Explorer ignora eso, por lo que ponemos la etiqueta TD como block. De esta forma Explorer sí toma la altura máxima.
English explanation: within the code commentaries
To retrieve all cookies for the current document open in the browser, you again use the document.cookie
property.
Both methods are used by many of the large players. It's a matter of preference. My preference is REST because it's simpler to use and understand.
Simple Object Access Protocol (SOAP):
Representational state transfer (REST):
There are endless debates on REST vs SOAP on google.
My favorite is this one. Update 27 Nov 2013: Paul Prescod's site appears to have gone offline and this article is no longer available, copies though can be found on the Wayback Machine or as a PDF at CiteSeerX.
Use colSds
function from matrixStats
library.
library(matrixStats)
set.seed(42)
M <- matrix(rnorm(40),ncol=4)
colSds(M)
[1] 0.8354488 1.6305844 1.1560580 1.1152688
A little off topic, but if you want to migrate the data to a new table, and the possible duplicates are in the original table, and the column possibly duplicated is not an id, a GROUP BY
will do:
INSERT INTO TABLE_2
(name)
SELECT t1.name
FROM TABLE_1 t1
GROUP BY t1.name
Regarding Jay Stevens answer: "The fonts available to use in an HTML file have to be present on the user's machine and accessible from the web browser, so unless you want to distribute the fonts to the user's machine via a separate external process, it can't be done." That's true.
But there is another way using javascript / canvas / flash - very good solution gives cufon: http://cufon.shoqolate.com/generate/ library that generates a very easy to use external fonts methods.
$about = DB::where('page', 'about-me')->first();
in stead of get()
.
It works on my project. Thanks.
Do not change the gravity of the LinearLayout to "right" if you don't want everything to be to the right.
Try:
fill_parent
right
Code:
<TextView
android:text="TextView"
android:id="@+id/textView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="right">
</TextView>
editText.setInputType(InputType.TYPE_NULL);
As per the docs this prevents the soft keyboard from being displayed. It also prevents pasting, allows scrolling and doesn't alter the visual aspect of the view. However, this also prevents selecting and copying of the text within the view.
From my tests setting setInputType
to TYPE_NULL
seems to be functionally equivalent to the depreciated android:editable="false"
. Additionally, android:inputType="none"
seems to have no noticeable effect.
SELECT A.identifier
, A.name
, TO_NUMBER(DECODE( A.month_no
, 1, 200803
, 2, 200804
, 3, 200805
, 4, 200806
, 5, 200807
, 6, 200808
, 7, 200809
, 8, 200810
, 9, 200811
, 10, 200812
, 11, 200701
, 12, 200702
, NULL)) as MONTH_NO
, TO_NUMBER(TO_CHAR(B.last_update_date, 'YYYYMM')) as UPD_DATE
FROM table_a A, table_b B
WHERE .identifier = B.identifier
HAVING MONTH_NO > UPD_DATE
SlickGrid has this functionality, see the tree demo.
If you want to build your own, here is an example (jsFiddle demo): Build your table with a data-depth
attribute to indicate the depth of the item in the tree (the levelX
CSS classes are just for styling indentation):
<table id="mytable">
<tr data-depth="0" class="collapse level0">
<td><span class="toggle collapse"></span>Item 1</td>
<td>123</td>
</tr>
<tr data-depth="1" class="collapse level1">
<td><span class="toggle"></span>Item 2</td>
<td>123</td>
</tr>
</table>
Then when a toggle link is clicked, use Javascript to hide all <tr>
elements until a <tr>
of equal or less depth is found (excluding those already collapsed):
$(function() {
$('#mytable').on('click', '.toggle', function () {
//Gets all <tr>'s of greater depth below element in the table
var findChildren = function (tr) {
var depth = tr.data('depth');
return tr.nextUntil($('tr').filter(function () {
return $(this).data('depth') <= depth;
}));
};
var el = $(this);
var tr = el.closest('tr'); //Get <tr> parent of toggle button
var children = findChildren(tr);
//Remove already collapsed nodes from children so that we don't
//make them visible.
//(Confused? Remove this code and close Item 2, close Item 1
//then open Item 1 again, then you will understand)
var subnodes = children.filter('.expand');
subnodes.each(function () {
var subnode = $(this);
var subnodeChildren = findChildren(subnode);
children = children.not(subnodeChildren);
});
//Change icon and hide/show children
if (tr.hasClass('collapse')) {
tr.removeClass('collapse').addClass('expand');
children.hide();
} else {
tr.removeClass('expand').addClass('collapse');
children.show();
}
return children;
});
});
Instead of directly messing with innerHTML
it might be better to create a fragment and then insert that:
function create(htmlStr) {
var frag = document.createDocumentFragment(),
temp = document.createElement('div');
temp.innerHTML = htmlStr;
while (temp.firstChild) {
frag.appendChild(temp.firstChild);
}
return frag;
}
var fragment = create('<div>Hello!</div><p>...</p>');
// You can use native DOM methods to insert the fragment:
document.body.insertBefore(fragment, document.body.childNodes[0]);
Benefits:
Even though innerHTML
is used within the function, it's all happening outside of the DOM so it's much faster than you'd think...
If you want to use jQuery you can use .replaceAll()
Add:
DELIMITER
at the beginning and end of the SP.validar_egreso
; at the beginning@variableName
.This works for me. (I modified some part of your script so ANYONE can run it with out having your tables).
DROP PROCEDURE IF EXISTS `validar_egreso`;
DELIMITER $$
CREATE DEFINER='root'@'localhost' PROCEDURE `validar_egreso` (
IN codigo_producto VARCHAR(100),
IN cantidad INT,
OUT valido INT(11)
)
BEGIN
DECLARE resta INT;
SET resta = 0;
SELECT (codigo_producto - cantidad) INTO resta;
IF(resta > 1) THEN
SET valido = 1;
ELSE
SET valido = -1;
END IF;
SELECT valido;
END $$
DELIMITER ;
-- execute the stored procedure
CALL validar_egreso(4, 1, @val);
-- display the result
select @val;
(x > 0 for x in list)
in that function call creates a generator expression eg.
>>> nums = [1, 2, -1, 9, -5]
>>> genexp = (x > 0 for x in nums)
>>> for x in genexp:
print x
True
True
False
True
False
Which any
uses, and shortcircuits on encountering the first object that evaluates True
This is of course subjective, but I think it strongly improves on two points:
condition
holds.Usually timestamp has no timezone.
% irb
> Time.now.to_i == Time.now.getutc.to_i
=> true
If you are running into the same problem and R is giving you an error -- could not find function ".jnew" -- Just install the library rJava. Or if you have it already just run the line library(rJava). That should be the problem.
Also, it should be clear to everybody that csv and txt files are easier to work with, but life is not easy and sometimes you just have to open an xlsx.
Should be as simple as:
git reset --hard 56e05f
That'll get you back to that specific point in time.
Make a
class PassMeByRef { public int theValue; }
then pass a reference to an instance of it. Note that a method that mutates state through its arguments is best avoided, especially in parallel code.
You do not set such attributes in strings.xml
type of files. You need to set it in your code. or (which is better solution) create style with colors you want and apply to your TextView
None of the current solutions worked for me with git bash 2.26.2. This should work in any case if you are using the windows credential manager.
One issue is the windows credential manager runs for the logged user. In my case for example, I run git bash with right click, run as admin. Therefore, my stored credentials are in a credentials manager which I can't access with the windows GUI if I don't login to windows as admin.
To fix this:
cmdkey /list
. Your old credentials should appear here, with a part that reads ...target:xxx...cmdkey /delete:xxx
, where xxx is the target from the previous lineIt should confirm you that your credentials have been removed. Next time you do any operation in git bash that requires authentication, a popup will ask for your credentials.
On strings and memory allocation:
A string in C is just a sequence of char
s, so you can use char *
or a char
array wherever you want to use a string data type:
typedef struct {
int number;
char *name;
char *address;
char *birthdate;
char gender;
} patient;
Then you need to allocate memory for the structure itself, and for each of the strings:
patient *createPatient(int number, char *name,
char *addr, char *bd, char sex) {
// Allocate memory for the pointers themselves and other elements
// in the struct.
patient *p = malloc(sizeof(struct patient));
p->number = number; // Scalars (int, char, etc) can simply be copied
// Must allocate memory for contents of pointers. Here, strdup()
// creates a new copy of name. Another option:
// p->name = malloc(strlen(name)+1);
// strcpy(p->name, name);
p->name = strdup(name);
p->address = strdup(addr);
p->birthdate = strdup(bd);
p->gender = sex;
return p;
}
If you'll only need a few patient
s, you can avoid the memory management at the expense of allocating more memory than you really need:
typedef struct {
int number;
char name[50]; // Declaring an array will allocate the specified
char address[200]; // amount of memory when the struct is created,
char birthdate[50]; // but pre-determines the max length and may
char gender; // allocate more than you need.
} patient;
On linked lists:
In general, the purpose of a linked list is to prove quick access to an ordered collection of elements. If your llist
contains an element called num
(which presumably contains the patient number), you need an additional data structure to hold the actual patient
s themselves, and you'll need to look up the patient number every time.
Instead, if you declare
typedef struct llist
{
patient *p;
struct llist *next;
} list;
then each element contains a direct pointer to a patient
structure, and you can access the data like this:
patient *getPatient(list *patients, int num) {
list *l = patients;
while (l != NULL) {
if (l->p->num == num) {
return l->p;
}
l = l->next;
}
return NULL;
}
I always find myself on this same page everytime I try to do this. Sure, the other answers get the job done, but aren't easy to remember for next time! ex: import ticker and use lambda, custom def, etc.
Here's a simple solution if you have an axes named ax
:
ax.set_yticklabels(['{:,}'.format(int(x)) for x in ax.get_yticks().tolist()])
You can use SQLiteOpenHelper's onUpgrade
method. In the onUpgrade method, you get the oldVersion as one of the parameters.
In the onUpgrade
use a switch
and in each of the case
s use the version number to keep track of the current version of database.
It's best that you loop over from oldVersion
to newVersion
, incrementing version
by 1 at a time and then upgrade the database step by step. This is very helpful when someone with database version 1 upgrades the app after a long time, to a version using database version 7 and the app starts crashing because of certain incompatible changes.
Then the updates in the database will be done step-wise, covering all possible cases, i.e. incorporating the changes in the database done for each new version and thereby preventing your application from crashing.
For example:
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
switch (oldVersion) {
case 1:
String sql = "ALTER TABLE " + TABLE_SECRET + " ADD COLUMN " + "name_of_column_to_be_added" + " INTEGER";
db.execSQL(sql);
break;
case 2:
String sql = "SOME_QUERY";
db.execSQL(sql);
break;
}
}
I achieved 1600k concurrent idle socket connections, and at the same time 57k req/s on a Linux desktop (16G RAM, I7 2600 CPU). It's a single thread http server written in C with epoll. Source code is on github, a blog here.
Edit:
I did 600k concurrent HTTP connections (client & server) on both the same computer, with JAVA/Clojure . detail info post, HN discussion: http://news.ycombinator.com/item?id=5127251
The cost of a connection(with epoll):
Each registered file descriptor costs roughly 90 bytes on a 32-bit kernel, and roughly 160 bytes on a 64-bit kernel.
you can use
@Html.Raw(str)
See MSDN for more
Returns markup that is not HTML encoded.
This method wraps HTML markup using the IHtmlString class, which renders unencoded HTML.
in my case the right server name was the name of my computer. for example John-PC, or somth
An AsyncTask
is background task which runs in the background thread. It takes an Input, performs Progress and gives Output.
ie
AsyncTask<Input,Progress,Output>
.
In my opinion the main source of confusion comes when we try to memorize the parameters in the AsyncTask
.
The key is Don't memorize.
If you can visualize what your task really needs to do then writing the AsyncTask
with the correct signature would be a piece of cake.
Just figure out what your Input, Progress and Output are and you will be good to go.
doInBackgound()
method is the most important method in an AsyncTask
because
AsyncTask
parameters.So lets see the relationship
doInBackground()
andonPostExecute()
,onProgressUpdate()
are also related
Show me the code
So how will I write the code for DownloadTask?
DownloadTask extends AsyncTask<String,Integer,String>{
@Override
public void onPreExecute()
{}
@Override
public String doInbackGround(String... params)
{
// Download code
int downloadPerc = // calculate that
publish(downloadPerc);
return "Download Success";
}
@Override
public void onPostExecute(String result)
{
super.onPostExecute(result);
}
@Override
public void onProgressUpdate(Integer... params)
{
// show in spinner, access UI elements
}
}
How will you run this Task
new DownLoadTask().execute("Paradise.mp3");
By using Gson,
object
to JsonConvert Json to Map
retMap = new Gson().fromJson(new Gson().toJson(object),
new TypeToken<HashMap<String, Object>>() {}.getType()
);
git rm -r .
git checkout HEAD~3 .
git commit
After the commit, files in the new HEAD
will be the same as they were in the revision HEAD~3
.
much easier use it
<input type="button" id="loadFileXml" value="Custom Button Name"onclick="document.getElementById('file').click();" />
<input type="file" style="display:none;" id="file" name="file"/>
How about something like this:
for (int row = 0; row < 3; row ++)
for (int col = 0; col < 3; col++)
table[row][col] = (char) ('1' + row * 3 + col);
The following complete Java program:
class Test {
public static void main(String[] args) {
char[][] table = new char[3][3];
for (int row = 0; row < 3; row ++)
for (int col = 0; col < 3; col++)
table[row][col] = (char) ('1' + row * 3 + col);
for (int row = 0; row < 3; row ++)
for (int col = 0; col < 3; col++)
System.out.println (table[row][col]);
}
}
outputs:
1
2
3
4
5
6
7
8
9
This works because the digits in Unicode are consecutive starting at \u0030 (which is what you get from '0'
).
The expression '1' + row * 3 + col
(where you vary row
and col
between 0
and 2
inclusive) simply gives you a character from 1
to 9
.
Obviously, this won't give you the character 10
(since that's two characters) if you go further but it works just fine for the 3x3 case. You would have to change the method of generating the array contents at that point such as with something like:
String[][] table = new String[5][5];
for (int row = 0; row < 5; row ++)
for (int col = 0; col < 5; col++)
table[row][col] = String.format("%d", row * 5 + col + 1);
Well, you need to incorporate exec-maven-plugin
, this plug-in performs the same thing that you do on command prompt when you type in java -cp .;jarpaths TestMain
. You can pass argument and define which phase (test
, package
, integration
, verify
, or deploy
), you want this plug-in to call your main class.
You need to add this plug-in under <build>
tag and specify parameters. For example
<project>
...
...
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.1.1</version>
<executions>
<execution>
<phase>test</phase>
<goals>
<goal>java</goal>
</goals>
<configuration>
<mainClass>my.company.name.packageName.TestMain</mainClass>
<arguments>
<argument>myArg1</argument>
<argument>myArg2</argument>
</arguments>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
...
...
</project>
Now, if you right-click on on the project folder and do Run As > Maven Test
, or Run As > Maven Package
or Run As > Maven Install
, the test phase
will execute and so your Main class.
I presume you mean curve-fitting and not anti-aliasing from the context of your question. PyPlot doesn't have any built-in support for this, but you can easily implement some basic curve-fitting yourself, like the code seen here, or if you're using GuiQwt it has a curve fitting module. (You could probably also steal the code from SciPy to do this as well).
Since it appears you are using jQuery, here is a jQuery solution.
$(function() {
$('#Eframe').on("mousewheel", function() {
alert($(document).scrollTop());
});
});
Not much to explain here. If you want, here is the jQuery documentation.
You didn't tell us what particular problem do you have with the WinSCP, so I can really only repeat what's in WinSCP documentation.
Download WinSCP .NET assembly.
The latest package as of now is WinSCP-5.17.10-Automation.zip
;
Extract the .zip
archive along your script;
Use a code like this (based on the official PowerShell upload example):
# Load WinSCP .NET assembly
Add-Type -Path "WinSCPnet.dll"
# Setup session options
$sessionOptions = New-Object WinSCP.SessionOptions -Property @{
Protocol = [WinSCP.Protocol]::Sftp
HostName = "example.com"
UserName = "user"
Password = "mypassword"
SshHostKeyFingerprint = "ssh-rsa 2048 xxxxxxxxxxx...="
}
$session = New-Object WinSCP.Session
try
{
# Connect
$session.Open($sessionOptions)
# Upload
$session.PutFiles("C:\FileDump\export.txt", "/Outbox/").Check()
}
finally
{
# Disconnect, clean up
$session.Dispose()
}
You can have WinSCP generate the PowerShell script for the upload for you:
You will get a code like above with all session and transfer settings filled in.
(I'm the author of WinSCP)
Yes, if your Column annotation has the runtime retention
@Retention(RetentionPolicy.RUNTIME)
@interface Column {
....
}
you can do something like this
for (Field f: MyClass.class.getFields()) {
Column column = f.getAnnotation(Column.class);
if (column != null)
System.out.println(column.columnName());
}
UPDATE : To get private fields use
Myclass.class.getDeclaredFields()
What about Regex.Replace solution?
myStr = Regex.Replace(myStr, "\s", "")
There is collection of Func<...>
classes - Func that is probably what you are looking for:
void MyMethod(Func<int> param1 = null)
This defines method that have parameter param1
with default value null
(similar to AS), and a function that returns int
. Unlike AS in C# you need to specify type of the function's arguments.
So if you AS usage was
MyMethod(function(intArg, stringArg) { return true; })
Than in C# it would require param1
to be of type Func<int, siring, bool>
and usage like
MyMethod( (intArg, stringArg) => { return true;} );
Here's an old discussion thread where I listed the main differences and the conditions in which you should use each of these methods. I think you may find it useful to go through the discussion.
To explain the differences as relevant to your posted example:
a. When you use RegisterStartupScript
, it will render your script after all the elements in the page (right before the form's end tag). This enables the script to call or reference page elements without the possibility of it not finding them in the Page's DOM.
Here is the rendered source of the page when you invoke the RegisterStartupScript
method:
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1"><title></title></head>
<body>
<form name="form1" method="post" action="StartupScript.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="someViewstategibberish" />
</div>
<div> <span id="lblDisplayDate">Label</span>
<br />
<input type="submit" name="btnPostback" value="Register Startup Script" id="btnPostback" />
<br />
<input type="submit" name="btnPostBack2" value="Register" id="btnPostBack2" />
</div>
<div>
<input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="someViewstategibberish" />
</div>
<!-- Note this part -->
<script language='javascript'>
var lbl = document.getElementById('lblDisplayDate');
lbl.style.color = 'red';
</script>
</form>
<!-- Note this part -->
</body>
</html>
b. When you use RegisterClientScriptBlock
, the script is rendered right after the Viewstate tag, but before any of the page elements. Since this is a direct script (not a function that can be called, it will immediately be executed by the browser. But the browser does not find the label in the Page's DOM at this stage and hence you should receive an "Object not found" error.
Here is the rendered source of the page when you invoke the RegisterClientScriptBlock
method:
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1"><title></title></head>
<body>
<form name="form1" method="post" action="StartupScript.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="someViewstategibberish" />
</div>
<script language='javascript'>
var lbl = document.getElementById('lblDisplayDate');
// Error is thrown in the next line because lbl is null.
lbl.style.color = 'green';
Therefore, to summarize, you should call the latter method if you intend to render a function definition. You can then render the call to that function using the former method (or add a client side attribute).
Edit after comments:
For instance, the following function would work:
protected void btnPostBack2_Click(object sender, EventArgs e)
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
sb.Append("<script language='javascript'>function ChangeColor() {");
sb.Append("var lbl = document.getElementById('lblDisplayDate');");
sb.Append("lbl.style.color='green';");
sb.Append("}</script>");
//Render the function definition.
if (!ClientScript.IsClientScriptBlockRegistered("JSScriptBlock"))
{
ClientScript.RegisterClientScriptBlock(this.GetType(), "JSScriptBlock", sb.ToString());
}
//Render the function invocation.
string funcCall = "<script language='javascript'>ChangeColor();</script>";
if (!ClientScript.IsStartupScriptRegistered("JSScript"))
{
ClientScript.RegisterStartupScript(this.GetType(), "JSScript", funcCall);
}
}
You can get all the information of active transaction by the help of below query
SELECT
trans.session_id AS [SESSION ID],
ESes.host_name AS [HOST NAME],login_name AS [Login NAME],
trans.transaction_id AS [TRANSACTION ID],
tas.name AS [TRANSACTION NAME],tas.transaction_begin_time AS [TRANSACTION
BEGIN TIME],
tds.database_id AS [DATABASE ID],DBs.name AS [DATABASE NAME]
FROM sys.dm_tran_active_transactions tas
JOIN sys.dm_tran_session_transactions trans
ON (trans.transaction_id=tas.transaction_id)
LEFT OUTER JOIN sys.dm_tran_database_transactions tds
ON (tas.transaction_id = tds.transaction_id )
LEFT OUTER JOIN sys.databases AS DBs
ON tds.database_id = DBs.database_id
LEFT OUTER JOIN sys.dm_exec_sessions AS ESes
ON trans.session_id = ESes.session_id
WHERE ESes.session_id IS NOT NULL
and it will give below similar result
and you close that transaction by the help below KILL query by refering session id
KILL 77
You can do it with a host:
import { Directive, ElementRef, Input } from '@angular/core';
@Directive({
selector: '[myHighlight]',
host: {
'(mouseenter)': 'onMouseEnter()',
'(mouseleave)': 'onMouseLeave()'
}
})
export class HighlightDirective {
private _defaultColor = 'blue';
private el: HTMLElement;
constructor(el: ElementRef) { this.el = el.nativeElement; }
@Input('myHighlight') highlightColor: string;
onMouseEnter() { this.highlight(this.highlightColor || this._defaultColor); }
onMouseLeave() { this.highlight(null); }
private highlight(color:string) {
this.el.style.backgroundColor = color;
}
}
Just adapt it to your code (found at: https://angular.io/docs/ts/latest/guide/attribute-directives.html )
I had a similar problem today. I had a list of items that needed checking; if the objects passed the check, they were added to a result list. If they didn't pass, I changed them a bit and if they might still work (size > 0 after the change), I'd add them on to the back of the list for rechecking.
I went for a solution like
items = [...what I want to check...]
result = []
while items:
recheck_items = []
for item in items:
if check(item):
result.append(item)
else:
item = change(item) # Note that this always lowers the integer size(),
# so no danger of an infinite loop
if item.size() > 0:
recheck_items.append(item)
items = recheck_items # Let the loop restart with these, if any
My list is effectively a queue, should probably have used some sort of queue. But my lists are small (like 10 items) and this works too.
You can also define a super class for all your activities and find the view once in the parent activity.
for example
AppActivity.java :
public class AppActivity extends AppCompatActivity {
protected View content;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
changeLanguage("fa");
content = findViewById(android.R.id.content);
}
}
and your snacks would look like this in every activity in your app:
Snackbar.make(content, "hello every body", Snackbar.LENGTH_SHORT).show();
It is better for performance you have to find the view once for every activity.
To get all capital, use the following in your XML:
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAllCaps="true"
android:inputType="textCapCharacters"
/>
For people familiar with GIT, master in GIT is equivalent to trunk in SVN.
Branch and tag has same terminology in both GIT and SVN.
Instead you can simply have the href like below:
<a href="javascript:;">My Link</a>
It will not scroll to the top.
It's easier to use jquery $(parent).html(code)
instead of parent.innerHTML = code
:
var oldDocumentWrite = document.write;
var oldDocumentWriteln = document.writeln;
try {
document.write = function(code) {
$(parent).append(code);
}
document.writeln = function(code) {
document.write(code + "<br/>");
}
$(parent).html(html);
} finally {
$(window).load(function() {
document.write = oldDocumentWrite
document.writeln = oldDocumentWriteln
})
}
This also works with scripts that use document.write
and scripts loaded via src
attribute. Unfortunately even this doesn't work with Google AdSense scripts.
You can do it calling setRowSelectionInterval :
table.setRowSelectionInterval(0, 0);
to select the first row.
Suppose you want the value of the first item.
ListBox list = new ListBox();
Console.Write(list.Items[0].Value);
To read a specific set of columns from a dataset you, there are several other options:
1) With fread
from the data.table
-package:
You can specify the desired columns with the select
parameter from fread
from the data.table
package. You can specify the columns with a vector of column names or column numbers.
For the example dataset:
library(data.table)
dat <- fread("data.txt", select = c("Year","Jan","Feb","Mar","Apr","May","Jun"))
dat <- fread("data.txt", select = c(1:7))
Alternatively, you can use the drop
parameter to indicate which columns should not be read:
dat <- fread("data.txt", drop = c("Jul","Aug","Sep","Oct","Nov","Dec"))
dat <- fread("data.txt", drop = c(8:13))
All result in:
> data
Year Jan Feb Mar Apr May Jun
1 2009 -41 -27 -25 -31 -31 -39
2 2010 -41 -27 -25 -31 -31 -39
3 2011 -21 -27 -2 -6 -10 -32
UPDATE: When you don't want fread
to return a data.table, use the data.table = FALSE
-parameter, e.g.: fread("data.txt", select = c(1:7), data.table = FALSE)
2) With read.csv.sql
from the sqldf
-package:
Another alternative is the read.csv.sql
function from the sqldf
package:
library(sqldf)
dat <- read.csv.sql("data.txt",
sql = "select Year,Jan,Feb,Mar,Apr,May,Jun from file",
sep = "\t")
3) With the read_*
-functions from the readr
-package:
library(readr)
dat <- read_table("data.txt",
col_types = cols_only(Year = 'i', Jan = 'i', Feb = 'i', Mar = 'i',
Apr = 'i', May = 'i', Jun = 'i'))
dat <- read_table("data.txt",
col_types = list(Jul = col_skip(), Aug = col_skip(), Sep = col_skip(),
Oct = col_skip(), Nov = col_skip(), Dec = col_skip()))
dat <- read_table("data.txt", col_types = 'iiiiiii______')
From the documentation an explanation for the used characters with col_types
:
each character represents one column: c = character, i = integer, n = number, d = double, l = logical, D = date, T = date time, t = time, ? = guess, or _/- to skip the column
you can directly send mail from php mail() function if you specified the smtp server and smtp port in php.ini, first ask the SMTP server credential to your ISP.
SMTP = smtp.wlink.com.np //put your ISP's smtp server
smtp_port = 25 // your ISP's smtp port.
then just restart the apache server and it will start working. ENjoy ...
OCR which stands for Optical Character Recognition is a computer vision technique used to identify the different types of handwritten digits that are used in common mathematics. To perform OCR in OpenCV we will use the KNN algorithm which detects the nearest k neighbors of a particular data point and then classifies that data point based on the class type detected for n neighbors.
Data Used
This data contains 5000 handwritten digits where there are 500 digits for every type of digit. Each digit is of 20×20 pixel dimensions. We will split the data such that 250 digits are for training and 250 digits are for testing for every class.
Below is the implementation.
import numpy as np import cv2 # Read the image image = cv2.imread( 'digits.png' ) # gray scale conversion gray_img = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) # We will divide the image # into 5000 small dimensions # of size 20x20 divisions = list (np.hsplit(i, 100 ) for i in np.vsplit(gray_img, 50 )) # Convert into Numpy array # of size (50,100,20,20) NP_array = np.array(divisions) # Preparing train_data # and test_data. # Size will be (2500,20x20) train_data = NP_array[:,: 50 ].reshape( - 1 , 400 ).astype(np.float32) # Size will be (2500,20x20) test_data = NP_array[:, 50 : 100 ].reshape( - 1 , 400 ).astype(np.float32) # Create 10 different labels # for each type of digit k = np.arange( 10 ) train_labels = np.repeat(k, 250 )[:,np.newaxis] test_labels = np.repeat(k, 250 )[:,np.newaxis] # Initiate kNN classifier knn = cv2.ml.KNearest_create() # perform training of data knn.train(train_data, cv2.ml.ROW_SAMPLE, train_labels) # obtain the output from the # classifier by specifying the # number of neighbors. ret, output ,neighbours, distance = knn.findNearest(test_data, k = 3 ) # Check the performance and # accuracy of the classifier. # Compare the output with test_labels # to find out how many are wrong. matched = output = = test_labels correct_OP = np.count_nonzero(matched) #Calculate the accuracy. accuracy = (correct_OP * 100.0 ) / (output.size) # Display accuracy. print (accuracy) |
Output
91.64
Well, I decided to workout myself on my question to solve the above problem. What I wanted is to implement a simple OCR using KNearest or SVM features in OpenCV. And below is what I did and how. (it is just for learning how to use KNearest for simple OCR purposes).
1) My first question was about letter_recognition.data
file that comes with OpenCV samples. I wanted to know what is inside that file.
It contains a letter, along with 16 features of that letter.
And this SOF
helped me to find it. These 16 features are explained in the paper Letter Recognition Using Holland-Style Adaptive Classifiers
.
(Although I didn't understand some of the features at the end)
2) Since I knew, without understanding all those features, it is difficult to do that method. I tried some other papers, but all were a little difficult for a beginner.
So I just decided to take all the pixel values as my features. (I was not worried about accuracy or performance, I just wanted it to work, at least with the least accuracy)
I took the below image for my training data:
(I know the amount of training data is less. But, since all letters are of the same font and size, I decided to try on this).
To prepare the data for training, I made a small code in OpenCV. It does the following things:
key press manually
. This time we press the digit key ourselves corresponding to the letter in the box..txt
files.At the end of the manual classification of digits, all the digits in the training data (train.png
) are labeled manually by ourselves, image will look like below:
Below is the code I used for the above purpose (of course, not so clean):
import sys
import numpy as np
import cv2
im = cv2.imread('pitrain.png')
im3 = im.copy()
gray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)
blur = cv2.GaussianBlur(gray,(5,5),0)
thresh = cv2.adaptiveThreshold(blur,255,1,1,11,2)
################# Now finding Contours ###################
contours,hierarchy = cv2.findContours(thresh,cv2.RETR_LIST,cv2.CHAIN_APPROX_SIMPLE)
samples = np.empty((0,100))
responses = []
keys = [i for i in range(48,58)]
for cnt in contours:
if cv2.contourArea(cnt)>50:
[x,y,w,h] = cv2.boundingRect(cnt)
if h>28:
cv2.rectangle(im,(x,y),(x+w,y+h),(0,0,255),2)
roi = thresh[y:y+h,x:x+w]
roismall = cv2.resize(roi,(10,10))
cv2.imshow('norm',im)
key = cv2.waitKey(0)
if key == 27: # (escape to quit)
sys.exit()
elif key in keys:
responses.append(int(chr(key)))
sample = roismall.reshape((1,100))
samples = np.append(samples,sample,0)
responses = np.array(responses,np.float32)
responses = responses.reshape((responses.size,1))
print "training complete"
np.savetxt('generalsamples.data',samples)
np.savetxt('generalresponses.data',responses)
Now we enter in to training and testing part.
For the testing part, I used the below image, which has the same type of letters I used for the training phase.
For training we do as follows:
.txt
files we already saved earlierFor testing purposes, we do as follows:
I included last two steps (training and testing) in single code below:
import cv2
import numpy as np
####### training part ###############
samples = np.loadtxt('generalsamples.data',np.float32)
responses = np.loadtxt('generalresponses.data',np.float32)
responses = responses.reshape((responses.size,1))
model = cv2.KNearest()
model.train(samples,responses)
############################# testing part #########################
im = cv2.imread('pi.png')
out = np.zeros(im.shape,np.uint8)
gray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)
thresh = cv2.adaptiveThreshold(gray,255,1,1,11,2)
contours,hierarchy = cv2.findContours(thresh,cv2.RETR_LIST,cv2.CHAIN_APPROX_SIMPLE)
for cnt in contours:
if cv2.contourArea(cnt)>50:
[x,y,w,h] = cv2.boundingRect(cnt)
if h>28:
cv2.rectangle(im,(x,y),(x+w,y+h),(0,255,0),2)
roi = thresh[y:y+h,x:x+w]
roismall = cv2.resize(roi,(10,10))
roismall = roismall.reshape((1,100))
roismall = np.float32(roismall)
retval, results, neigh_resp, dists = model.find_nearest(roismall, k = 1)
string = str(int((results[0][0])))
cv2.putText(out,string,(x,y+h),0,1,(0,255,0))
cv2.imshow('im',im)
cv2.imshow('out',out)
cv2.waitKey(0)
And it worked, below is the result I got:
Here it worked with 100% accuracy. I assume this is because all the digits are of the same kind and the same size.
But anyway, this is a good start to go for beginners (I hope so).
If you use jQuery you can write:
$( _checkbox ).click( function( e ){ /*process event here*/ } )
Things seems a little confused in the code in your question, so I am going to give you an example of what I think you are try to do.
First considerations are about mixing HTML, Javascript and CSS:
Why is using onClick() in HTML a bad practice?
I will be removing inline content and splitting these into their appropriate files.
Next, I am going to go with the "click" event and displose of the "change" event, as it is not clear that you want or need both.
Your function changeBackground
sets both the backround color and the text color to the same value (your text will not be seen), so I am caching the color value as we don't need to look it up in the DOM twice.
CSS
#TheForm {
margin-left: 396px;
}
#submitColor {
margin-left: 48px;
margin-top: 5px;
}
HTML
<form id="TheForm">
<input id="color" type="text" />
<br/>
<input id="submitColor" value="Submit" type="button" />
</form>
<span id="coltext">This text should have the same color as you put in the text box</span>
Javascript
function changeBackground() {
var color = document.getElementById("color").value; // cached
// The working function for changing background color.
document.bgColor = color;
// The code I'd like to use for changing the text simultaneously - however it does not work.
document.getElementById("coltext").style.color = color;
}
document.getElementById("submitColor").addEventListener("click", changeBackground, false);
On jsfiddle
Source: w3schools
CSS colors are defined using a hexadecimal (hex) notation for the combination of Red, Green, and Blue color values (RGB). The lowest value that can be given to one of the light sources is 0 (hex 00). The highest value is 255 (hex FF).
Hex values are written as 3 double digit numbers, starting with a # sign.
Update: as pointed out by @Ian
Hex can be either 3 or 6 characters long
Source: W3C
The format of an RGB value in hexadecimal notation is a ‘#’ immediately followed by either three or six hexadecimal characters. The three-digit RGB notation (#rgb) is converted into six-digit form (#rrggbb) by replicating digits, not by adding zeros. For example, #fb0 expands to #ffbb00. This ensures that white (#ffffff) can be specified with the short notation (#fff) and removes any dependencies on the color depth of the display.
Here is an alternative function that will check that your input is a valid CSS Hex Color, it will set the text color only or throw an alert if it is not valid.
For regex testing, I will use this pattern
/^#(?:[0-9a-f]{3}){1,2}$/i
but if you were regex matching and wanted to break the numbers into groups then you would require a different pattern
function changeBackground() {
var color = document.getElementById("color").value.trim(),
rxValidHex = /^#(?:[0-9a-f]{3}){1,2}$/i;
if (rxValidHex.test(color)) {
document.getElementById("coltext").style.color = color;
} else {
alert("Invalid CSS Hex Color");
}
}
document.getElementById("submitColor").addEventListener("click", changeBackground, false);
On jsfiddle
Here is a further modification that will allow colours by name along with by hex.
function changeBackground() {
var names = ["AliceBlue", "AntiqueWhite", "Aqua", "Aquamarine", "Azure", "Beige", "Bisque", "Black", "BlanchedAlmond", "Blue", "BlueViolet", "Brown", "BurlyWood", "CadetBlue", "Chartreuse", "Chocolate", "Coral", "CornflowerBlue", "Cornsilk", "Crimson", "Cyan", "DarkBlue", "DarkCyan", "DarkGoldenRod", "DarkGray", "DarkGrey", "DarkGreen", "DarkKhaki", "DarkMagenta", "DarkOliveGreen", "Darkorange", "DarkOrchid", "DarkRed", "DarkSalmon", "DarkSeaGreen", "DarkSlateBlue", "DarkSlateGray", "DarkSlateGrey", "DarkTurquoise", "DarkViolet", "DeepPink", "DeepSkyBlue", "DimGray", "DimGrey", "DodgerBlue", "FireBrick", "FloralWhite", "ForestGreen", "Fuchsia", "Gainsboro", "GhostWhite", "Gold", "GoldenRod", "Gray", "Grey", "Green", "GreenYellow", "HoneyDew", "HotPink", "IndianRed", "Indigo", "Ivory", "Khaki", "Lavender", "LavenderBlush", "LawnGreen", "LemonChiffon", "LightBlue", "LightCoral", "LightCyan", "LightGoldenRodYellow", "LightGray", "LightGrey", "LightGreen", "LightPink", "LightSalmon", "LightSeaGreen", "LightSkyBlue", "LightSlateGray", "LightSlateGrey", "LightSteelBlue", "LightYellow", "Lime", "LimeGreen", "Linen", "Magenta", "Maroon", "MediumAquaMarine", "MediumBlue", "MediumOrchid", "MediumPurple", "MediumSeaGreen", "MediumSlateBlue", "MediumSpringGreen", "MediumTurquoise", "MediumVioletRed", "MidnightBlue", "MintCream", "MistyRose", "Moccasin", "NavajoWhite", "Navy", "OldLace", "Olive", "OliveDrab", "Orange", "OrangeRed", "Orchid", "PaleGoldenRod", "PaleGreen", "PaleTurquoise", "PaleVioletRed", "PapayaWhip", "PeachPuff", "Peru", "Pink", "Plum", "PowderBlue", "Purple", "Red", "RosyBrown", "RoyalBlue", "SaddleBrown", "Salmon", "SandyBrown", "SeaGreen", "SeaShell", "Sienna", "Silver", "SkyBlue", "SlateBlue", "SlateGray", "SlateGrey", "Snow", "SpringGreen", "SteelBlue", "Tan", "Teal", "Thistle", "Tomato", "Turquoise", "Violet", "Wheat", "White", "WhiteSmoke", "Yellow", "YellowGreen"],
color = document.getElementById("color").value.trim(),
rxValidHex = /^#(?:[0-9a-f]{3}){1,2}$/i,
formattedName = color.charAt(0).toUpperCase() + color.slice(1).toLowerCase();
if (names.indexOf(formattedName) !== -1 || rxValidHex.test(color)) {
document.getElementById("coltext").style.color = color;
} else {
alert("Invalid CSS Color");
}
}
document.getElementById("submitColor").addEventListener("click", changeBackground, false);
On jsfiddle
Boolean b = Boolean.valueOf(string);
The value of b
is true if the string is not a null and equal to true
(ignoring case).
res.writeHead(404, {'Content-Type': 'text/plain'}); // <- redirect
res.write("Looked everywhere, but couldn't find that page at all!\n"); // <- content!
res.end(); // that's all!
res.writeHead(302, {'Location': 'https://example.com' + req.url});
res.end();
Just consider where you use this (e.g. only for http request), so you don't get endless redirects ;-)
You can use stuff and patindex.
stuff(Col, 1, patindex('%[0-9]%', Col)-1, '')
This works:
<img src="invalid_link"
onerror="this.onerror=null;this.src='https://placeimg.com/200/300/animals';"
>
Live demo: http://jsfiddle.net/oLqfxjoz/
As Nikola pointed out in the comment below, in case the backup URL is invalid as well, some browsers will trigger the "error" event again which will result in an infinite loop. We can guard against this by simply nullifying the "error" handler via this.onerror=null;
.
Here is a very quick and simple solution:
self.navigationController.hidesBarsOnTap = YES;
This will work on single tap instead of double tap. Also it will change the behavior for the navigation controller even after pushing or popping the current view controller.
You can always modify this behavior in your controller within the viewWillAppear: and viewWillDisappear: actions if you would like to set the behavior only for a single view controller.
Here is the documentation:
Ignoring issues surrounding dict ordering, this might be better:
next(dict.itervalues())
This way we avoid item lookup and generating a list of keys that we don't use.
next(iter(dict.values()))
Use the format()
function with a '02x'
format.
>>> format(255, '02x')
'ff'
>>> format(2, '02x')
'02'
The 02
part tells format()
to use at least 2 digits and to use zeros to pad it to length, x
means lower-case hexadecimal.
The Format Specification Mini Language also gives you X
for uppercase hex output, and you can prefix the field width with #
to include a 0x
or 0X
prefix (depending on wether you used x
or X
as the formatter). Just take into account that you need to adjust the field width to allow for those extra 2 characters:
>>> format(255, '02X')
'FF'
>>> format(255, '#04x')
'0xff'
>>> format(255, '#04X')
'0XFF'
Use Notepad to create a text document and copy/paste this:
rmdir /s/q "%temp%"
mkdir "%temp%"
Select Save As and file name:
delete_temp.bat
Save as type: All files and click the Save button.
It works on any kind of account (administrator or a standard user). Just run it!
I use a temporary variable in this example, but you can use any other! PS: For Windows OS only!
I just stumbled onto this while searching for this answer. If you are using intellij, you can navigate to the file location, but opening the external lib folder in the project explorer, right clicking on the jar, and select Open Library Settings.
Set objFSO=CreateObject("Scripting.FileSystemObject")
' How to write file
outFile="c:\test\autorun.inf"
Set objFile = objFSO.CreateTextFile(outFile,True)
objFile.Write "test string" & vbCrLf
objFile.Close
'How to read a file
strFile = "c:\test\file"
Set objFile = objFS.OpenTextFile(strFile)
Do Until objFile.AtEndOfStream
strLine= objFile.ReadLine
Wscript.Echo strLine
Loop
objFile.Close
'to get file path without drive letter, assuming drive letters are c:, d:, etc
strFile="c:\test\file"
s = Split(strFile,":")
WScript.Echo s(1)
I know I am late to the party, but how about this?
const char* dayNames[] = { [Sunday] = "Sunday", [Monday] = "Monday", /*and so on*/ };
printf("%s", dayNames[Sunday]); // prints "Sunday"
This way, you do not have to manually keep the enum
and the char*
array in sync. If you are like me, chances are that you will later change the enum
, and the char*
array will print invalid strings.
This may not be a feature universally supported. But afaik, most of the mordern day C compilers support this designated initialier style.
You can read more about designated initializers here.
public static class UnixTime
{
private static readonly DateTime Epoch = new DateTime(1970, 1, 1, 0, 0, 0, 0);
public static DateTime UnixTimeToDateTime(double unixTimeStamp)
{
return Epoch.AddSeconds(unixTimeStamp).ToUniversalTime();
}
}
you can call UnixTime.UnixTimeToDateTime(double datetime))
Well, better late than never. Google maps API v3 now provides address autocompletion.
API docs are here: http://code.google.com/apis/maps/documentation/javascript/reference.html#Autocomplete
A good example is here: http://code.google.com/apis/maps/documentation/javascript/examples/places-autocomplete.html
I really like the O'Reilly book "Version Control with Git". I read it cover-to-cover and now I'm very comfortable with advanced git topics.
So let's say after getMasterData servlet will response.sendRedirect to to test.jsp.
In test.jsp
Create a javascript
<script type="text/javascript">
function alertName(){
alert("Form has been submitted");
}
</script>
and than at the bottom
<script type="text/javascript"> window.onload = alertName; </script>
Note:im not sure how to type the code in stackoverflow!. Edit: I just learned how to
Edit 2: TO the question:This works perfectly. Another question. How would I get rid of the initial alert when I first start up the JSP? "Form has been submitted" is present the second I execute. It shows up after the load is done to which is perfect.
To do that i would highly recommendation to use session!
So what you want to do is in your servlet:
session.setAttribute("getAlert", "Yes");//Just initialize a random variable.
response.sendRedirect(test.jsp);
than in the test.jsp
<%
session.setMaxInactiveInterval(2);
%>
<script type="text/javascript">
var Msg ='<%=session.getAttribute("getAlert")%>';
if (Msg != "null") {
function alertName(){
alert("Form has been submitted");
}
}
</script>
and than at the bottom
<script type="text/javascript"> window.onload = alertName; </script>
So everytime you submit that form a session will be pass on! If session is not null the function will run!
Once you have a JArray you can treat it just like any other Enumerable object, and using linq you can access them, check them, verify them, and select them.
var str = @"[1, 2, 3]";
var jArray = JArray.Parse(str);
Console.WriteLine(String.Join("-", jArray.Where(i => (int)i > 1).Select(i => i.ToString())));
API stands for Application Programming Interface. It is a way for your application to interact with other applications via an endpoint. Conversely, you can build out an API for your application that is available for other developers to utilize/connect to via HTTP methods, which are RESTful. Representational State Transfer (REST):
You can try the following:
private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog fDialog = new OpenFileDialog();
fDialog.Title = "Select file to be upload";
fDialog.Filter = "All Files|*.*";
// fDialog.Filter = "PDF Files|*.pdf";
if (fDialog.ShowDialog() == DialogResult.OK)
{
textBox1.Text = fDialog.FileName.ToString();
}
}
Using python 3.4+
Barring the use of cx_freeze or using in IDLE.
import sys
from pathlib import Path
sys.path.append(Path(__file__).parent / "lib")