This is working for me today with FF 57:
function () {
// JQuery, today, doesn't play well with adding SVG elements - tricks required
$(selector_to_node_in_svg_doc).parent().prepend($(this).clone().text("Your"));
$(selector_to_node_in_svg_doc).text("New").attr("x", "340").text("New")
.attr('stroke', 'blue').attr("style", "text-decoration: line-through");
}
Makes:
Hi you can download using boto3. In python
import boto3
from boto3.dynamodb.conditions import Key, Attr
dynamodb = boto3.resource('dynamodb')
table = dynamodb.Table('Table')
response = table.scan()
items = response['Items']
while 'LastEvaluatedKey' in response:
print(response['LastEvaluatedKey'])
response = table.scan(ExclusiveStartKey=response['LastEvaluatedKey'])
items.extend(response['Items'])
Quite simply:
git rm --cached <file>
makes git stop tracking the file completely (leaving it in the filesystem, unlike plain git rm
*)git reset HEAD <file>
unstages any modifications made to the file since the last commit (but doesn't revert them in the filesystem, contrary to what the command name might suggest**). The file remains under revision control.If the file wasn't in revision control before (i.e. you're unstaging a file that you had just git add
ed for the first time), then the two commands have the same effect, hence the appearance of these being "two ways of doing something".
* Keep in mind the caveat @DrewT mentions in his answer, regarding git rm --cached
of a file that was previously committed to the repository. In the context of this question, of a file just added and not committed yet, there's nothing to worry about.
** I was scared for an embarrassingly long time to use the git reset command because of its name -- and still today I often look up the syntax to make sure I don't screw up. (update: I finally took the time to summarize the usage of git reset
in a tldr page, so now I have a better mental model of how it works, and a quick reference for when I forget some detail.)
I used Adobe's detection kit, originally suggested by justpassinby. Their system is nice because it detects the version number and compares it for you against your 'required version'
One bad thing is it does an alert showing the detected version of flash, which isn't very user friendly. All of a sudden a box pops up with some seemingly random numbers.
Some modifications you might want to consider:
Vectors and matrices can only be of a single type and cbind
and rbind
on vectors will give matrices. In these cases, the numeric values will be promoted to character values since that type will hold all the values.
(Note that in your rbind
example, the promotion happens within the c
call:
> c(10, "[]", "[[1,2]]")
[1] "10" "[]" "[[1,2]]"
If you want a rectangular structure where the columns can be different types, you want a data.frame
. Any of the following should get you what you want:
> x = data.frame(v1=c(10, 20), v2=c("[]", "[]"), v3=c("[[1,2]]","[[1,3]]"))
> x
v1 v2 v3
1 10 [] [[1,2]]
2 20 [] [[1,3]]
> str(x)
'data.frame': 2 obs. of 3 variables:
$ v1: num 10 20
$ v2: Factor w/ 1 level "[]": 1 1
$ v3: Factor w/ 2 levels "[[1,2]]","[[1,3]]": 1 2
or (using specifically the data.frame
version of cbind
)
> x = cbind.data.frame(c(10, 20), c("[]", "[]"), c("[[1,2]]","[[1,3]]"))
> x
c(10, 20) c("[]", "[]") c("[[1,2]]", "[[1,3]]")
1 10 [] [[1,2]]
2 20 [] [[1,3]]
> str(x)
'data.frame': 2 obs. of 3 variables:
$ c(10, 20) : num 10 20
$ c("[]", "[]") : Factor w/ 1 level "[]": 1 1
$ c("[[1,2]]", "[[1,3]]"): Factor w/ 2 levels "[[1,2]]","[[1,3]]": 1 2
or (using cbind
, but making the first a data.frame
so that it combines as data.frames do):
> x = cbind(data.frame(c(10, 20)), c("[]", "[]"), c("[[1,2]]","[[1,3]]"))
> x
c.10..20. c("[]", "[]") c("[[1,2]]", "[[1,3]]")
1 10 [] [[1,2]]
2 20 [] [[1,3]]
> str(x)
'data.frame': 2 obs. of 3 variables:
$ c.10..20. : num 10 20
$ c("[]", "[]") : Factor w/ 1 level "[]": 1 1
$ c("[[1,2]]", "[[1,3]]"): Factor w/ 2 levels "[[1,2]]","[[1,3]]": 1 2
Blockquote Adding libxml2 in Xcode 4.3.x
Adding libxml2 is a big, fat, finicky pain in the ass. If you're going to do it do it before you get too far in building your project.
Here's how.
Target settings
Click on your target (not your project) and select "Build Phases". Click on the reveal triangle titled "Link Binary With Libraries". Click on the "+" to add a library. Scroll to the bottom of the list and select "libxml2.dylib". That adds the libxml2 library 2 your project… but wait.
Project settings
Now you have to tell your project where to look for it three more times.
Select the "Build Settings tab". Scroll down to the "Linking" section. Under your project's columns double click on the "Other Linker Flags" row. Click the "+" and add "-lxml2" to the list.
Still more.
In the same tab, scroll down to the "Search Paths" section. Under your project's column in the "Framework Search Paths" row add "/usr/lib/libxml2.dylib".
In the "Header Search Paths" AND the "User Header Search Paths" row add "$(SDKROOT)/usr/include/libxml2". In those last two cases make sure that path is entered in Debug AND Release.
Then. Under the "Product" Menu select "Clean".
This is working and for Xcode5 too! Thank you!
You're not reading the file content:
my_file_contents = f.read()
See the docs for further infos
You could, without calling read()
or readlines()
loop over your file object:
f = open('goodlines.txt')
for line in f:
print(line)
If you want a list out of it (without \n
as you asked)
my_list = [line.rstrip('\n') for line in f]
md-icons aren't in the bower release of angular-material yet. I've been using Polymer's icons, they'll probably be the same anyway.
bower install polymer/core-icons
I use both Clang and GCC, I find Clang has some useful warnings, but for my own ray-tracing benchmarks - its consistently 5-15% slower then GCC (take that with grain of salt of course, but attempted to use similar optimization flags for both).
So for now I use Clang static analysis and its warnings with complex macros: (though now GCC's warnings are pretty much as good - gcc4.8 - 4.9).
Some considerations:
***** - these areas are in active development and may soon be supported
That's because the return type for [data bytes] is a void* c-style array, not a Uint8 (which is what Byte is a typedef for).
The error is because you are trying to set an allocated array when the return is a pointer type, what you are looking for is the getBytes:length: call which would look like:
[data getBytes:&byteData length:len];
Which fills the array you have allocated with data from the NSData object.
here is revised one to treat null = null as equal
private bool PublicInstancePropertiesEqual<T>(T self, T to, params string[] ignore) where T : class
{
if (self != null && to != null)
{
Type type = typeof(T);
List<string> ignoreList = new List<string>(ignore);
foreach (PropertyInfo pi in type.GetProperties(BindingFlags.Public | BindingFlags.Instance))
{
if (!ignoreList.Contains(pi.Name))
{
object selfValue = type.GetProperty(pi.Name).GetValue(self, null);
object toValue = type.GetProperty(pi.Name).GetValue(to, null);
if (selfValue != null)
{
if (!selfValue.Equals(toValue))
return false;
}
else if (toValue != null)
return false;
}
}
return true;
}
return self == to;
}
Here, i am using link in the form of button for CANCEL operation.
<button><a href="main.html">cancel</a></button>
The **
never properly worked before, but since git 1.8.2 (March, 8th 2013), it seems to be explicitly mentioned and supported:
The patterns in
.gitignore
and.gitattributes
files can have**/
, as a pattern that matches 0 or more levels of subdirectory.E.g. "
foo/**/bar
" matches "bar
" in "foo
" itself or in a subdirectory of "foo
".
In your case, that means this line might now be supported:
/main/**/bin/
I think it is dangerous to use $.isEmptyObject from jquery to check whether the array is empty, as @jesenko mentioned. I just met that problem.
In the isEmptyObject doc, it mentions:
The argument should always be a plain JavaScript Object
which you can determine by $.isPlainObject
. The return of $.isPlainObject([])
is false.
The above answer are interesting and very helpful when using Ruby as shell script. For me, I does not use Ruby as my daily language and I prefer to use ruby as flow control only and still use bash to do the tasks.
Some helper function can be used for testing execution result
#!/usr/bin/env ruby
module ShellHelper
def test(command)
`#{command} 2> /dev/null`
$?.success?
end
def execute(command, raise_on_error = true)
result = `#{command}`
raise "execute command failed\n" if (not $?.success?) and raise_on_error
return $?.success?
end
def print_exit(message)
print "#{message}\n"
exit
end
module_function :execute, :print_exit, :test
end
With helper, the ruby script could be bash alike:
#!/usr/bin/env ruby
require './shell_helper'
include ShellHelper
print_exit "config already exists" if test "ls config"
things.each do |thing|
next if not test "ls #{thing}/config"
execute "cp -fr #{thing}/config_template config/#{thing}"
end
Literally all you have to do is:
echo export "JAVA_HOME=\$(/usr/libexec/java_home)" >> ~/.bash_profile
and restart your shell.
If you have multiple JDK versions installed and you want it to be a specific one, you can use the -v
flag to java_home
like so:
echo export "JAVA_HOME=\$(/usr/libexec/java_home -v 1.7)" >> ~/.bash_profile
you can do this:
SELECT
CustomerId,
FirstName,
LastName,
Email
INTO #tempCustomer
FROM
Customer
WHERE
CustomerId = @CustomerId
then later
SELECT CustomerId FROM #tempCustomer
you doesn't need to declare the structure of #tempCustomer
When you annotate a parameter with @RequestHeader
, the parameter retrieves the header information. So you can just do something like this:
@RequestHeader("Accept")
to get the Accept
header.
So from the documentation:
@RequestMapping("/displayHeaderInfo.do")
public void displayHeaderInfo(@RequestHeader("Accept-Encoding") String encoding,
@RequestHeader("Keep-Alive") long keepAlive) {
}
The Accept-Encoding
and Keep-Alive
header values are provided in the encoding
and keepAlive
parameters respectively.
And no worries. We are all noobs with something.
Here's the XPath approach but with a minimum of XPath jargon.
Regular selection based on element attribute values (for comparison):
// for matching <element class="foo bar baz">...</element> by 'bar'
var things = document.querySelectorAll('[class*="bar"]');
for (var i = 0; i < things.length; i++) {
things[i].style.outline = '1px solid red';
}
XPath selection based on text within element.
// for matching <element>foo bar baz</element> by 'bar'
var things = document.evaluate('//*[contains(text(),"bar")]',document,null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null);
for (var i = 0; i < things.snapshotLength; i++) {
things.snapshotItem(i).style.outline = '1px solid red';
}
And here's with case-insensitivity since text is more volatile:
// for matching <element>foo bar baz</element> by 'bar' case-insensitively
var things = document.evaluate('//*[contains(translate(text(),"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz"),"bar")]',document,null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null);
for (var i = 0; i < things.snapshotLength; i++) {
things.snapshotItem(i).style.outline = '1px solid red';
}
try this
SELECT id FROM events WHERE start BETWEEN '2013-06-13' AND '2013-07-22'
AND end BETWEEN '2013-06-13' AND '2013-07-22'
output :
ID
1
3
4
This worked for me JsFiddle
Html
..bootstrap
<div class="row">
<div class="col-4 window-full" style="background-color:green">
First Col
</div>
<div class="col-8">
Column-8
</div>
</div>
css
.row {
background: #f8f9fa;
margin-top: 20px;
}
.col {
border: solid 1px #6c757d;
padding: 10px;
}
JavaScript
var elements = document.getElementsByClassName('window-full');
var windowheight = window.innerHeight + "px";
fullheight(elements);
function fullheight(elements) {
for(let el in elements){
if(elements.hasOwnProperty(el)){
elements[el].style.height = windowheight;
}
}
}
window.onresize = function(event){
fullheight(elements);
}
Checkout JsFiddle link JsFiddle
There is three way to transaction animation in fragment.
So need to use one of the built-in Transitions, use the setTranstion() method:
getSupportFragmentManager()
.beginTransaction()
.setTransition( FragmentTransaction.TRANSIT_FRAGMENT_OPEN )
.show( m_topFragment )
.commit()
You can also customize the animation by using the setCustomAnimations() method:
getSupportFragmentManager()
.beginTransaction()
.setCustomAnimations( R.anim.slide_up, 0, 0, R.anim.slide_down)
.show( m_topFragment )
.commit()
slide_up.xml
<?xml version="1.0" encoding="utf-8"?>
<objectAnimator
xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_decelerate_interpolator"
android:propertyName="translationY"
android:valueType="floatType"
android:valueFrom="1280"
android:valueTo="0"
android:duration="@android:integer/config_mediumAnimTime"/>
slide_down.xml
<?xml version="1.0" encoding="utf-8"?>
<objectAnimator
xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_decelerate_interpolator"
android:propertyName="translationY"
android:valueType="floatType"
android:valueFrom="0"
android:valueTo="1280"
android:duration="@android:integer/config_mediumAnimTime"/>
Finally, It's also possible to kick-off multiple fragment animations in a single transaction. This allows for a pretty cool effect where one fragment is sliding up and the other slides down at the same time:
getSupportFragmentManager()
.beginTransaction()
.setCustomAnimations( R.anim.abc_slide_in_top, R.anim.abc_slide_out_top ) // Top Fragment Animation
.show( m_topFragment )
.setCustomAnimations( R.anim.abc_slide_in_bottom, R.anim.abc_slide_out_bottom ) // Bottom Fragment Animation
.show( m_bottomFragment )
.commit()
To more detail you can visit URL
Note:- You can check animation according to your requirement because above may be have issue.
Basically if the response header is text/html you need to parse, and if the response header is application/json it is already parsed for you.
Parsed data from jquery success handler for text/html response:
var parsed = JSON.parse(data);
Parsed data from jquery success handler for application/json response:
var parsed = data;
I want to add a very subtle difference between null
and undefined
which is good to know when you are trying to learn Vanilla JavaScript(JS) from ground up:
null
is a reserved keyword in JS while undefined
is a variable
on the global object of the run-time environment you're in.While writing code, this difference is not identifiable as both null
and undefined
are always used in RHS of a JavaScript statement. But when you use them in LHS of an expression then you can observe this difference easily. So JS interpreter interprets the below code as error:
var null = 'foo'
It gives below error:
Uncaught SyntaxError: Unexpected token null
While below code runs successfully although I won't recommend doing so in real life:
var undefined = 'bar'
This works because undefined
is a variable on the global object (browser window object in case of client-side JS)
if you want to fill all the column:
update 'column' set 'info' where keyID!=0;
Most shortest code:
strs = {'HA' 'KU' 'LA' 'MA' 'TATA'};
[~,ind]=ismember('KU', strs)
But it returns only first position in strs
. If element not found then ind=0
.
Here is an easy way of how you can do it, without having to use anything fancy, or even JSON.
First, create a server side script to handle your requests. Something like http://www.example.com/path/handler.php
You will call it with parameters, like this: .../handler.php?param1=12345¶m2=67890
Inside it, after processing the recieved data, output:
document.serverResponse('..all the data, in any format that suits you..');
// Any code could be used instead, because you dont have to encode this data
// All your output will simply be executed as normal javascript
Now, in the client side script, use the following:
document.serverResponse = function(param){ console.log(param) }
var script = document.createElement('script');
script.src='http://www.example.com/path/handler.php?param1=12345¶m2=67890';
document.head.appendChild(script);
The only limit of this approach, is the max length of parameters that you can send to the server. But, you can always send multiple requests.
I tried to combine efficiency and simplicity and end up with this :
public static IEnumerable<T> TakeLast<T>(this IEnumerable<T> source, int count)
{
if (source == null) { throw new ArgumentNullException("source"); }
Queue<T> lastElements = new Queue<T>();
foreach (T element in source)
{
lastElements.Enqueue(element);
if (lastElements.Count > count)
{
lastElements.Dequeue();
}
}
return lastElements;
}
About
performance : In C#, Queue<T>
is implemented using a circular buffer so there is no object instantiation done each loop (only when the queue is growing up). I did not set queue capacity (using dedicated constructor) because someone might call this extension with count = int.MaxValue
. For extra performance you might check if source implement IList<T>
and if yes, directly extract the last values using array indexes.
If you need to split something into 3 pieces, such as an email address and you don't know the length of the middle part, try this (I just ran this on sqlserver 2012 so I know it works):
SELECT top 2000
emailaddr_ as email,
SUBSTRING(emailaddr_, 1,CHARINDEX('@',emailaddr_) -1) as username,
SUBSTRING(emailaddr_, CHARINDEX('@',emailaddr_)+1, (LEN(emailaddr_) - charindex('@',emailaddr_) - charindex('.',reverse(emailaddr_)) )) domain
FROM
emailTable
WHERE
charindex('@',emailaddr_)>0
AND
charindex('.',emailaddr_)>0;
GO
Hope this helps.
You must press twice on tap and (_) key each time, it must look like:
__init__
I think the exception safety part of mr mpark's answer is still a valid concern. when creating a shared_ptr like this: shared_ptr< T >(new T), the new T may succeed, while the shared_ptr's allocation of control block may fail. in this scenario, the newly allocated T will leak, since the shared_ptr has no way of knowing that it was created in-place and it is safe to delete it. or am I missing something? I don't think the stricter rules on function parameter evaluation help in any way here...
Try this: B = A ( : )
, or try the reshape
function.
http://www.mathworks.com/access/helpdesk/help/techdoc/ref/reshape.html
You'll need to use UNION
to combine the results of two queries. In your case:
SELECT ChargeNum, CategoryID, SUM(Hours)
FROM KnownHours
GROUP BY ChargeNum, CategoryID
UNION ALL
SELECT ChargeNum, 'Unknown' AS CategoryID, SUM(Hours)
FROM UnknownHours
GROUP BY ChargeNum
Note - If you use UNION ALL
as in above, it's no slower than running the two queries separately as it does no duplicate-checking.
This code will work for all cases:
int[] a1 ={3,4,5,6};
int[] a2 = {4,7,9};
int i = a1.Length-1;
int j = a2.Length-1;
int resultIndex= i+j+1;
Array.Resize(ref a2, a1.Length +a2.Length);
while(resultIndex >=0)
{
if(i != 0 && j !=0)
{
if(a1[i] > a2[j])
{
a2[resultIndex--] = a[i--];
}
else
{
a2[resultIndex--] = a[j--];
}
}
else if(i>=0 && j<=0)
{
a2[resultIndex--] = a[i--];
}
else if(j>=0 && i <=0)
{
a2[resultIndex--] = a[j--];
}
}
This is FAQ 7.10. Others have shown how to apply this to a single column in a data frame, or to multiple columns in a data frame. But this is really treating the symptom, not curing the cause.
A better approach is to use the colClasses
argument to read.table
and related functions to tell R that the column should be numeric so that it never creates a factor and creates numeric. This will put in NA
for any values that do not convert to numeric.
Another better option is to figure out why R does not recognize the column as numeric (usually a non numeric character somewhere in that column) and fix the original data so that it is read in properly without needing to create NA
s.
Best is a combination of the last 2, make sure the data is correct before reading it in and specify colClasses
so R does not need to guess (this can speed up reading as well).
jj is super-fast, can handle ginormous JSON documents economically, does not mess with valid JSON numbers, and is easy to use, e.g.
jj -p # for reading from STDIN
or
jj -p -i input.json
It is (2018) still quite new so maybe it won’t handle invalid JSON the way you expect, but it is easy to install on major platforms.
Try this, in case of id
$("#YourId").text('Your text');
OR this, in case of class
$(".YourClassName").text('Your text');
Polymorphism is the ability for an object to appear in multiple forms. This involves using inheritance and virtual functions to build a family of objects which can be interchanged. The base class contains the prototypes of the virtual functions, possibly unimplemented or with default implementations as the application dictates, and the various derived classes each implements them differently to affect different behaviors.
I have this grid class that can be used as a simple matrix if you don't need any mathematical operators.
/**
* Represents a grid of values.
* Indices are zero-based.
*/
template<class T>
class GenericGrid
{
public:
GenericGrid(size_t numRows, size_t numColumns);
GenericGrid(size_t numRows, size_t numColumns, const T & inInitialValue);
const T & get(size_t row, size_t col) const;
T & get(size_t row, size_t col);
void set(size_t row, size_t col, const T & inT);
size_t numRows() const;
size_t numColumns() const;
private:
size_t mNumRows;
size_t mNumColumns;
std::vector<T> mData;
};
template<class T>
GenericGrid<T>::GenericGrid(size_t numRows, size_t numColumns):
mNumRows(numRows),
mNumColumns(numColumns)
{
mData.resize(numRows*numColumns);
}
template<class T>
GenericGrid<T>::GenericGrid(size_t numRows, size_t numColumns, const T & inInitialValue):
mNumRows(numRows),
mNumColumns(numColumns)
{
mData.resize(numRows*numColumns, inInitialValue);
}
template<class T>
const T & GenericGrid<T>::get(size_t rowIdx, size_t colIdx) const
{
return mData[rowIdx*mNumColumns + colIdx];
}
template<class T>
T & GenericGrid<T>::get(size_t rowIdx, size_t colIdx)
{
return mData[rowIdx*mNumColumns + colIdx];
}
template<class T>
void GenericGrid<T>::set(size_t rowIdx, size_t colIdx, const T & inT)
{
mData[rowIdx*mNumColumns + colIdx] = inT;
}
template<class T>
size_t GenericGrid<T>::numRows() const
{
return mNumRows;
}
template<class T>
size_t GenericGrid<T>::numColumns() const
{
return mNumColumns;
}
See docs.python.org:
When you’re done with a file, call f.close() to close it and free up any system resources taken up by the open file. After calling f.close(), attempts to use the file object will automatically fail.
Hence use close()
elegantly with try/finally
:
f = open('file.txt', 'r')
try:
# do stuff with f
finally:
f.close()
This ensures that even if # do stuff with f
raises an exception, f
will still be closed properly.
Note that open
should appear outside of the try
. If open
itself raises an exception, the file wasn't opened and does not need to be closed. Also, if open
raises an exception its result is not assigned to f
and it is an error to call f.close()
.
The easiest way now is to add it as a module
This will create a new module containing the aar file, so you just need to include that module as a dependency afterwards
SELECT `id`,`name`, TO_BASE64(content) FROM `db`.`upload`
this will convert the blob value from content column to base64 string. Then you can do with this string whatever you want even insert it into another table
Create id column in your data frame or use any column name to identify the row. Using index is not fair to delete.
Use subset
function to create new frame.
updated_myData <- subset(myData, id!= 6)
print (updated_myData)
updated_myData <- subset(myData, id %in% c(1, 3, 5, 7))
print (updated_myData)
Null is purely database-related, whereas blank is validation-related. If a field has blank=True , validation on Django's admin site will allow entry of an empty value. If a field has blank=False , the field will be required
I have been using Mobilizer, which is an awesome free app
Currently it has default simulation for Iphone4, Iphone5, Samsung Galaxt S3, Nokia Lumia, Palm Pre, Blackberry Storm and HTC Evo. Simple straightforward and effective.
The new django.urls.path()
function allows a simpler, more readable URL routing syntax. For example, this example from previous Django releases:
url(r'^articles/(?P<year>[0-9]{4})/$', views.year_archive)
could be written as:
path('articles/<int:year>/', views.year_archive)
The django.conf.urls.url()
function from previous versions is now available as django.urls.re_path()
. The old location remains for backwards compatibility, without an imminent deprecation. The old django.conf.urls.include()
function is now importable from django.urls
so you can use:
from django.urls import include, path, re_path
in the URLconfs. For further reading django doc
Each project in Visual Studio has a "treat warnings as errors" option. Go through each of your projects and change that setting:
The location of this switch varies, depending on the type of project (class library vs. web application, for example).
This is a kotlin solution. Put this helper method in some kotlin file-
fun EditText.setupClearButtonWithAction() {
addTextChangedListener(object : TextWatcher {
override fun afterTextChanged(editable: Editable?) {
val clearIcon = if (editable?.isNotEmpty() == true) R.drawable.ic_clear else 0
setCompoundDrawablesWithIntrinsicBounds(0, 0, clearIcon, 0)
}
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) = Unit
override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) = Unit
})
setOnTouchListener(View.OnTouchListener { _, event ->
if (event.action == MotionEvent.ACTION_UP) {
if (event.rawX >= (this.right - this.compoundPaddingRight)) {
this.setText("")
return@OnTouchListener true
}
}
return@OnTouchListener false
})
}
And then use it as following in the onCreate
method and you should be good to go-
yourEditText.setupClearButtonWithAction()
BTW, you have to add R.drawable.ic_clear
or the clear icon at first. This one is from google- https://material.io/tools/icons/?icon=clear&style=baseline
Are the items in the vector unique? If so, copy the vector, sort one of the copies with STL Sort then you can find which index each item had in the original vector.
If the vector is supposed to handle duplicate items, I think youre better of implementing your own sort routine.
/* ENDLESS ROTATE */_x000D_
.rotate{_x000D_
animation: rotate 1.5s linear infinite; _x000D_
}_x000D_
@keyframes rotate{_x000D_
to{ transform: rotate(360deg); }_x000D_
}_x000D_
_x000D_
_x000D_
/* SPINNER JUST FOR DEMO */_x000D_
.spinner{_x000D_
display:inline-block; width: 50px; height: 50px;_x000D_
border-radius: 50%;_x000D_
box-shadow: inset -2px 0 0 2px #0bf;_x000D_
}
_x000D_
<span class="spinner rotate"></span>
_x000D_
If you are talking about <input type=button>
, it won't automatically submit the form
if you are talking about the <button>
tag, that's newer and doesn't automatically submit in all browsers.
Bottom line, if you want the form to submit on click in all browsers, use <input type="submit">
Your question is missing most of the necessary information, so I'm going to make some assumptions:
The answer would be:
=IF(COUNTBLANK(F16:G16)<>2,H15+G16-F16,"")
COUNTBLANK
tells you how many cells are unfilled or set to "".
IF
lets you conditionally do one of two things based on whether the first statement is true or false. The second comma separated argument is what to do if it's true, the third comma separated argument is what to do if it's false.
<>
means "not equal to".
The equation says that if the number of blank cells in the range F16:G16
(your credit and debit cells) is not 2, which means both aren't blank, then calculate the equation you provided in your question. Otherwise set the cell to blank(""
).
When you copy this equation to new cells in column H other than H16
, it will update the row references so the proper rows for the credit and debit amounts are looked at.
CAVEAT: This equation is useful if you are just adding entries for credits and debits to the end of a list and want the running total to update automatically. You'd fill this equation down to some arbitrary long length well past the end of actual data. You wouldn't see the running total past the end of the credit/debit entries then, it would just be blank until you filled in a new credit/debit entry. If you left a blank row in your credit debit entries though, the reference to the previous total, H15
, would report blank, which is treated like a 0 in this case.
If you have a Tensor
t, calling t.eval()
is equivalent to calling tf.get_default_session().run(t)
.
You can make a session the default as follows:
t = tf.constant(42.0)
sess = tf.Session()
with sess.as_default(): # or `with sess:` to close on exit
assert sess is tf.get_default_session()
assert t.eval() == sess.run(t)
The most important difference is that you can use sess.run()
to fetch the values of many tensors in the same step:
t = tf.constant(42.0)
u = tf.constant(37.0)
tu = tf.mul(t, u)
ut = tf.mul(u, t)
with sess.as_default():
tu.eval() # runs one step
ut.eval() # runs one step
sess.run([tu, ut]) # evaluates both tensors in a single step
Note that each call to eval
and run
will execute the whole graph from scratch. To cache the result of a computation, assign it to a tf.Variable
.
A priority queue is an abstract data type that captures the idea of a container whose elements have "priorities" attached to them. An element of highest priority always appears at the front of the queue. If that element is removed, the next highest priority element advances to the front.
The C++ standard library defines a class template priority_queue, with the following operations:
push: Insert an element into the prioity queue.
top: Return (without removing it) a highest priority element from the priority queue.
pop: Remove a highest priority element from the priority queue.
size: Return the number of elements in the priority queue.
empty: Return true or false according to whether the priority queue is empty or not.
The following code snippet shows how to construct two priority queues, one that can contain integers and another one that can contain character strings:
#include <queue>
priority_queue<int> q1;
priority_queue<string> q2;
The following is an example of priority queue usage:
#include <string>
#include <queue>
#include <iostream>
using namespace std; // This is to make available the names of things defined in the standard library.
int main()
{
piority_queue<string> pq; // Creates a priority queue pq to store strings, and initializes the queue to be empty.
pq.push("the quick");
pq.push("fox");
pq.push("jumped over");
pq.push("the lazy dog");
// The strings are ordered inside the priority queue in lexicographic (dictionary) order:
// "fox", "jumped over", "the lazy dog", "the quick"
// The lowest priority string is "fox", and the highest priority string is "the quick"
while (!pq.empty()) {
cout << pq.top() << endl; // Print highest priority string
pq.pop(); // Remmove highest priority string
}
return 0;
}
The output of this program is:
the quick
the lazy dog
jumped over
fox
Since a queue follows a priority discipline, the strings are printed from highest to lowest priority.
Sometimes one needs to create a priority queue to contain user defined objects. In this case, the priority queue needs to know the comparison criterion used to determine which objects have the highest priority. This is done by means of a function object belonging to a class that overloads the operator (). The overloaded () acts as < for the purpose of determining priorities. For example, suppose we want to create a priority queue to store Time objects. A Time object has three fields: hours, minutes, seconds:
struct Time {
int h;
int m;
int s;
};
class CompareTime {
public:
bool operator()(Time& t1, Time& t2) // Returns true if t1 is earlier than t2
{
if (t1.h < t2.h) return true;
if (t1.h == t2.h && t1.m < t2.m) return true;
if (t1.h == t2.h && t1.m == t2.m && t1.s < t2.s) return true;
return false;
}
}
A priority queue to store times according the the above comparison criterion would be defined as follows:
priority_queue<Time, vector<Time>, CompareTime> pq;
Here is a complete program:
#include <iostream>
#include <queue>
#include <iomanip>
using namespace std;
struct Time {
int h; // >= 0
int m; // 0-59
int s; // 0-59
};
class CompareTime {
public:
bool operator()(Time& t1, Time& t2)
{
if (t1.h < t2.h) return true;
if (t1.h == t2.h && t1.m < t2.m) return true;
if (t1.h == t2.h && t1.m == t2.m && t1.s < t2.s) return true;
return false;
}
};
int main()
{
priority_queue<Time, vector<Time>, CompareTime> pq;
// Array of 4 time objects:
Time t[4] = { {3, 2, 40}, {3, 2, 26}, {5, 16, 13}, {5, 14, 20}};
for (int i = 0; i < 4; ++i)
pq.push(t[i]);
while (! pq.empty()) {
Time t2 = pq.top();
cout << setw(3) << t2.h << " " << setw(3) << t2.m << " " <<
setw(3) << t2.s << endl;
pq.pop();
}
return 0;
}
The program prints the times from latest to earliest:
5 16 13
5 14 20
3 2 40
3 2 26
If we wanted earliest times to have the highest priority, we would redefine CompareTime like this:
class CompareTime {
public:
bool operator()(Time& t1, Time& t2) // t2 has highest prio than t1 if t2 is earlier than t1
{
if (t2.h < t1.h) return true;
if (t2.h == t1.h && t2.m < t1.m) return true;
if (t2.h == t1.h && t2.m == t1.m && t2.s < t1.s) return true;
return false;
}
};
Imo, you should try MySQL Connector/Node.js which is the official Node.js driver for MySQL. See ref-1 and ref-2 for detailed explanation. I have tried mysqljs/mysql which is available here, but I don't find detailed documentation on classes, methods, properties of this library.
So I switched to the standard MySQL Connector/Node.js
with X DevAPI
, since it is an asynchronous Promise-based client library and provides good documentation.
Take a look at the following code snippet :
const mysqlx = require('@mysql/xdevapi');
const rows = [];
mysqlx.getSession('mysqlx://localhost:33060')
.then(session => {
const table = session.getSchema('testSchema').getTable('testTable');
// The criteria is defined through the expression.
return table.update().where('name = "bar"').set('age', 50)
.execute()
.then(() => {
return table.select().orderBy('name ASC')
.execute(row => rows.push(row));
});
})
.then(() => {
console.log(rows);
});
I did not try this, but what happens when you use :status
twice to check for NULL
?
Query query = getSession().createQuery(
"from CountryDTO c where ( c.status = :status OR ( c.status IS NULL AND :status IS NULL ) ) and c.type =:type"
)
.setParameter("status", status, Hibernate.STRING)
.setParameter("type", type, Hibernate.STRING);
Your query translates to
SELECT * FROM table WHERE id='1' or id='2' or id='3' or id='4';
It will only return the results that match it.
One way of solving it avoiding the complexity would be, chaning the datatype to SET
.
Then you could use, FIND_IN_SET
SELECT * FROM table WHERE FIND_IN_SET('1', id);
One option from DOM directly:
$(document).find("title").text();
Tested only on chrome & IE9, but logically should work on all browsers.
Or more generic
var title = document.getElementsByTagName("title")[0].innerHTML;
This will work as long as the image you want to rotate is already in your Properties resources folder.
In Partial Class:
Bitmap bmp2;
OnLoad:
bmp2 = new Bitmap(Tycoon.Properties.Resources.save2);
pictureBox6.SizeMode = PictureBoxSizeMode.StretchImage;
pictureBox6.Image = bmp2;
Button or Onclick
private void pictureBox6_Click(object sender, EventArgs e)
{
if (bmp2 != null)
{
bmp2.RotateFlip(RotateFlipType.Rotate90FlipNone);
pictureBox6.Image = bmp2;
}
}
Try this, if it helps you
values = ['1', '2', '3']
with open("file.txt", "w") as output:
output.write(str(values))
For anyone else and just an addition to Robert, If your nav has flex display value, you can float the element that you need to the right, by adding this to its css
{
margin-left: auto;
}
With MongoDB version 4.2+, updates are more flexible as it allows the use of aggregation pipeline in its update
, updateOne
and updateMany
. You can now transform your documents using the aggregation operators then update without the need to explicity state the $set
command (instead we use $replaceRoot: {newRoot: "$$ROOT"}
)
Here we use the aggregate query to extract the timestamp from MongoDB's ObjectID "_id" field and update the documents (I am not an expert in SQL but I think SQL does not provide any auto generated ObjectID that has timestamp to it, you would have to automatically create that date)
var collection = "person"
agg_query = [
{
"$addFields" : {
"_last_updated" : {
"$toDate" : "$_id"
}
}
},
{
$replaceRoot: {
newRoot: "$$ROOT"
}
}
]
db.getCollection(collection).updateMany({}, agg_query, {upsert: true})
User.findByIdAndUpdate(req.param('userId'), req.body, (err, user) => {
if(err) return res.json(err);
res.json({ success: true });
});
Change commit author name & email
by Amend
, then replacing old-commit with new-one
:
$ git checkout <commit-hash> # checkout to the commit need to modify
$ git commit --amend --author "name <[email protected]>" # change the author name and email
$ git replace <old-commit-hash> <new-commit-hash> # replace the old commit by new one
$ git filter-branch -- --all # rewrite all futures commits based on the replacement
$ git replace -d <old-commit-hash> # remove the replacement for cleanliness
$ git push -f origin HEAD # force push
Another way Rebasing
:
$ git rebase -i <good-commit-hash> # back to last good commit
# Editor would open, replace 'pick' with 'edit' before the commit want to change author
$ git commit --amend --author="author name <[email protected]>" # change the author name & email
# Save changes and exit the editor
$ git rebase --continue # finish the rebase
In case this problem occurred for you a couple of days before today, 2019-Mar-20, it is very likely related to the fact that faulty code signing certificates were issued. In that case you should be able to resolve it by just recreating the code signing certificate. This SO question already has an answer that explains you how to do so.
Add to your panel's style code something like this:
<asp:Panel ID="myPanel" runat="Server" CssClass="myPanelCSS" style="overflow-y:auto; overflow-x:hidden"></asp:Panel>
I solved it with the help of this answer
1.Add the following in Linear Layout of list_items.xml
android:descendantFocusability="blocksDescendants"
2.Child Views of LinearLayout in list_items.xml
android:focusable="false"
If you already use modules in your app, you can use escape-html module.
import escapeHtml from 'escape-html';
const unsafeString = '<script>alert("XSS");</script>';
const safeString = escapeHtml(unsafeString);
The output looks correct to me:
Invalid JavaScript code: sun.org.mozilla.javascript.internal.EvaluatorException: missing } after property list (<Unknown source>) in <Unknown source>; at line number 1
I think Invalid Javascript code: ..
is the start of the exception message.
Normally the stacktrace isn't returned with the message:
try {
throw new RuntimeException("hu?\ntrace-line1\ntrace-line2");
} catch (Exception e) {
System.out.println(e.getMessage()); // prints "hu?"
}
So maybe the code you are calling catches an exception and rethrows a ScriptException
. In this case maybe e.getCause().getMessage()
can help you.
It’s a bit late but here is a wrapper class that simplifies scraping proxies and then making an http POST or GET:
ProxyRequests
https://github.com/rootVIII/proxy_requests
Redirect the output to DEVNULL:
import os
import subprocess
FNULL = open(os.devnull, 'w')
retcode = subprocess.call(['echo', 'foo'],
stdout=FNULL,
stderr=subprocess.STDOUT)
It is effectively the same as running this shell command:
retcode = os.system("echo 'foo' &> /dev/null")
Update: This answer applies to the original question relating to python 2.7. As of python >= 3.3 an official subprocess.DEVNULL
symbol was added.
retcode = subprocess.call(['echo', 'foo'],
stdout=subprocess.DEVNULL,
stderr=subprocess.STDOUT)
Remove the date()
part
SELECT name, datum
FROM tasks
WHERE datum >= NOW()
and if you use a specific date, don't forget the quotes around it and use the proper format with :
SELECT name, datum
FROM tasks
WHERE datum >= '2014-05-18 15:00:00'
This solved my problem, from preventign that an event gets fired by a children:
doSmth(){_x000D_
// what ever_x000D_
}
_x000D_
<div (click)="doSmth()">_x000D_
<div (click)="$event.stopPropagation()">_x000D_
<my-component></my-component>_x000D_
</div>_x000D_
</div>
_x000D_
Was getting the same error message when trying to run from Cygwin with links to the mingw install.
Using the same install of mingw32-make-3.80.0-3.exe from http://www.mingw.org/wiki/FAQ and the mingw shell option from Start -> Programs -> on a WinXP SP3 and gcc is working fine.
find . -name "*.java" -print | xargs javac
Kinda brutal, but works like hell. (Use only on small programs, it's absolutely not efficient)
We can use the PHP cURL library to generate simple HTTP POST request. The following example shows you how to create a simple SOAP request using cURL.
Create the soap-server.php which write the SOAP request into soap-request.xml in web folder.
We can use the PHP cURL library to generate simple HTTP POST request. The following example shows you how to create a simple SOAP request using cURL.
Create the soap-server.php which write the SOAP request into soap-request.xml in web folder.
<?php
$HTTP_RAW_POST_DATA = isset($HTTP_RAW_POST_DATA) ? $HTTP_RAW_POST_DATA : '';
$f = fopen("./soap-request.xml", "w");
fwrite($f, $HTTP_RAW_POST_DATA);
fclose($f);
?>
The next step is creating the soap-client.php which generate the SOAP request using the cURL library and send it to the soap-server.php URL.
<?php
$soap_request = "<?xml version=\"1.0\"?>\n";
$soap_request .= "<soap:Envelope xmlns:soap=\"http://www.w3.org/2001/12/soap-envelope\" soap:encodingStyle=\"http://www.w3.org/2001/12/soap-encoding\">\n";
$soap_request .= " <soap:Body xmlns:m=\"http://www.example.org/stock\">\n";
$soap_request .= " <m:GetStockPrice>\n";
$soap_request .= " <m:StockName>IBM</m:StockName>\n";
$soap_request .= " </m:GetStockPrice>\n";
$soap_request .= " </soap:Body>\n";
$soap_request .= "</soap:Envelope>";
$header = array(
"Content-type: text/xml;charset=\"utf-8\"",
"Accept: text/xml",
"Cache-Control: no-cache",
"Pragma: no-cache",
"SOAPAction: \"run\"",
"Content-length: ".strlen($soap_request),
);
$soap_do = curl_init();
curl_setopt($soap_do, CURLOPT_URL, "http://localhost/php-soap-curl/soap-server.php" );
curl_setopt($soap_do, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($soap_do, CURLOPT_TIMEOUT, 10);
curl_setopt($soap_do, CURLOPT_RETURNTRANSFER, true );
curl_setopt($soap_do, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($soap_do, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($soap_do, CURLOPT_POST, true );
curl_setopt($soap_do, CURLOPT_POSTFIELDS, $soap_request);
curl_setopt($soap_do, CURLOPT_HTTPHEADER, $header);
if(curl_exec($soap_do) === false) {
$err = 'Curl error: ' . curl_error($soap_do);
curl_close($soap_do);
print $err;
} else {
curl_close($soap_do);
print 'Operation completed without any errors';
}
?>
Enter the soap-client.php URL in browser to send the SOAP message. If success, Operation completed without any errors will be shown and the soap-request.xml will be created.
<?xml version="1.0"?>
<soap:Envelope xmlns:soap="http://www.w3.org/2001/12/soap-envelope" soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding">
<soap:Body xmlns:m="http://www.example.org/stock">
<m:GetStockPrice>
<m:StockName>IBM</m:StockName>
</m:GetStockPrice>
</soap:Body>
</soap:Envelope>
Original - http://eureka.ykyuen.info/2011/05/05/php-send-a-soap-request-by-curl/
I wanted to elevate this answer out of a comment section because it's one of the most elegant solutions in the thread. Full credit for this answer goes to @joeb.
pip uninstall -y -r <(pip freeze)
This worked great for me for the use case of clearing my user packages folder outside the context of a virtualenv which many of the above answers don't handle.
Edit: Anyone know how to make this command work in a Makefile?
I add this to my bash profile for convenience:
alias pipuninstallall="pip uninstall -y -r <(pip freeze)"
Then run:
pipuninstallall
If you happen to be using pipenv you can just run:
pipenv uninstall --all
A printer doesn't understand pixels, it understand dots (pt in CSS). The best solution is to write an extra CSS for printing, with all of its measures in dots.
Then, in your HTML code, in head section, put:
<link href="style.css" rel="stylesheet" type="text/css" media="screen">
<link href="style_print.css" rel="stylesheet" type="text/css" media="print">
I created an angularjs directive using @Russ's and @Alex's answers
Could be interesting in 2014 and beyond :P
html
<div ng-app="croppy">
<cropped-image src="http://placehold.it/200x200" width="100" height="100"></cropped-image>
</div>
js
angular.module('croppy', [])
.directive('croppedImage', function () {
return {
restrict: "E",
replace: true,
template: "<div class='center-cropped'></div>",
link: function(scope, element, attrs) {
var width = attrs.width;
var height = attrs.height;
element.css('width', width + "px");
element.css('height', height + "px");
element.css('backgroundPosition', 'center center');
element.css('backgroundRepeat', 'no-repeat');
element.css('backgroundImage', "url('" + attrs.src + "')");
}
}
});
Actually the above is related to the network connectivity in side the server. When I've good connectivity in the server, the npm install gone good and didn't throw any error
This is a good example where you want to get count of Pincode which stored in the last of address field
SELECT DISTINCT
RIGHT (address, 6),
count(*) AS count
FROM
datafile
WHERE
address IS NOT NULL
GROUP BY
RIGHT (address, 6)
Implement the iteration as a recursive function.
Function Iterate( i , N )
If i == N Then
Exit Function
End If
[Code]
If Condition1 Then
Call Iterate( i+1, N );
Exit Function
End If
[Code]
If Condition2 Then
Call Iterate( i+1, N );
Exit Function
End If
Call Iterate( i+1, N );
End Function
Start with a call to Iterate( 1, N )
Based on @Vlad Bezden answer I use this slightly modified code because I prefer named placeholders:
String.prototype.format = function(placeholders) {
var s = this;
for(var propertyName in placeholders) {
var re = new RegExp('{' + propertyName + '}', 'gm');
s = s.replace(re, placeholders[propertyName]);
}
return s;
};
usage:
"{greeting} {who}!".format({greeting: "Hello", who: "world"})
String.prototype.format = function(placeholders) {_x000D_
var s = this;_x000D_
for(var propertyName in placeholders) {_x000D_
var re = new RegExp('{' + propertyName + '}', 'gm');_x000D_
s = s.replace(re, placeholders[propertyName]);_x000D_
} _x000D_
return s;_x000D_
};_x000D_
_x000D_
$("#result").text("{greeting} {who}!".format({greeting: "Hello", who: "world"}));
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div id="result"></div>
_x000D_
public void Each<T>(IEnumerable<T> items, Action<T> action)
{
foreach (var item in items)
action(item);
}
... and call it thusly:
Each(myList, i => Console.WriteLine(i));
Add a reference to Microsoft.VisualBasic
and a using Microsoft.VisualBasic.Devices;
.
The ComputerInfo
class has all the information that you need.
Remove .iml file from all your project module and next go to File -> Invalidate Caches/Restart
You have to modify your server side code, as given below
public class CorsResponseFilter implements ContainerResponseFilter {
@Override
public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext)
throws IOException {
responseContext.getHeaders().add("Access-Control-Allow-Origin","*");
responseContext.getHeaders().add("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT");
}
}
Here is a query that I use and it will return each record within a period as a sum.
Here is the code:
$result = mysqli_query($conn,"SELECT emp_nr, SUM(az)
FROM az_konto
WHERE date BETWEEN '2018-01-01 00:00:00' AND '2018-01-31 23:59:59'
GROUP BY emp_nr ASC");
echo "<table border='1'>
<tr>
<th>Mitarbeiter NR</th>
<th>Stunden im Monat</th>
</tr>";
while($row = mysqli_fetch_array($result))
{
$emp_nr=$row['emp_nr'];
$az=$row['SUM(az)'];
echo "<tr>";
echo "<td>" . $emp_nr . "</td>";
echo "<td>" . $az . "</td>";
echo "</tr>";
}
echo "</table>";
$conn->close();
?>
This lists each emp_nr and the sum of the monthly hours that they have accumulated.
We should rather use Javascript.
<button href="images/car.jpg" id="myButton">
Here is the Button to be clicked
</button>
<script>
$(document).ready(function(){
document.getElementById("myButton").click();
});
</script>
I love to write it with no dependency/complexity just pure simple js.
const mp = {}
const cars = [
{
model: 'Imaginary space craft SpaceX model',
year: '2025'
},
{
make: 'audi',
model: 'r8',
year: '2012'
},
{
make: 'audi',
model: 'rs5',
year: '2013'
},
{
make: 'ford',
model: 'mustang',
year: '2012'
},
{
make: 'ford',
model: 'fusion',
year: '2015'
},
{
make: 'kia',
model: 'optima',
year: '2012'
}
]
cars.forEach(c => {
if (!c.make) return // exit (maybe add them to a "no_make" category)
if (!mp[c.make]) mp[c.make] = [{ model: c.model, year: c.year }]
else mp[c.make].push({ model: c.model, year: c.year })
})
console.log(mp)
_x000D_
The time_t
value for midnight GMT is always divisible by 86400
(24 * 3600
). The value for seconds-since-midnight GMT is thus time %% 86400
.
The hour in GMT is (time %% 86400) / 3600
and this can be used as the x-axis of the plot:
plot((as.numeric(times) %% 86400)/3600, val)
To adjust for a time zone, adjust the time before taking the modulus, by adding the number of seconds that your time zone is ahead of GMT. For example, US central daylight saving time (CDT) is 5 hours behind GMT. To plot against the time in CDT, the following expression is used:
plot(((as.numeric(times) - 5*3600) %% 86400)/3600, val)
In Java8 you can use get ValueRange from a field of a date.
LocalDateTime dateTime = LocalDateTime.now();
ChronoField chronoField = ChronoField.MONTH_OF_YEAR;
long max = dateTime.range(chronoField).getMaximum();
This allows you to parameterize on the field.
Best practise is to create an object (always use a . in ng-model)
In your controller:
var myObj: {
ngModelValue: null
};
and in your template:
<select
ng-model="myObj.ngModelValue"
ng-options="o.id as o.name for o in options">
</select>
Now you can just watch
myObj.ngModelValue
or you can use the ng-change directive like so:
<select
ng-model="myObj.ngModelValue"
ng-options="o.id as o.name for o in options"
ng-change="myChangeCallback()">
</select>
The egghead.io video "The Dot" has a really good overview, as does this very popular stack overflow question: What are the nuances of scope prototypal / prototypical inheritance in AngularJS?
This site: http://www.computerhope.com/issues/ch000178.htm answers it with the script below
< input type="button" value="Close this window" onclick="self.close()">
Another option using factories
export class A {
id: number;
date: Date;
bId: number;
readonly b: B;
}
export class B {
id: number;
}
export class AFactory {
constructor(
private readonly createB: BFactory
) { }
create(data: any): A {
const createB = this.createB.create;
return Object.assign(new A(),
data,
{
get b(): B {
return createB({ id: data.bId });
},
date: new Date(data.date)
});
}
}
export class BFactory {
create(data: any): B {
return Object.assign(new B(), data);
}
}
https://github.com/MrAntix/ts-deserialize
use like this
import { A, B, AFactory, BFactory } from "./deserialize";
// create a factory, simplified by DI
const aFactory = new AFactory(new BFactory());
// get an anon js object like you'd get from the http call
const data = { bId: 1, date: '2017-1-1' };
// create a real model from the anon js object
const a = aFactory.create(data);
// confirm instances e.g. dates are Dates
console.log('a.date is instanceof Date', a.date instanceof Date);
console.log('a.b is instanceof B', a.b instanceof B);
All (3) solotion is :
1- ctlr + C
2- in json file wreite a script that stop
"scripts": { "stop": "killall -SIGINT this-name-can-be-as-long-as-it-needs-to-be" },
*than in command write // npm stop //
3- Restart the pc
OAuth
Used for delegated authorization
only -- meaning you are authorizing a third-party service access to use personal data, without giving out a password. Also OAuth "sessions" generally live longer than user sessions. Meaning that OAuth is designed to allow authorization
i.e. Flickr uses OAuth to allow third-party services to post and edit a persons picture on their behalf, without them having to give out their flicker username and password.
OpenID
Used to authenticate
single sign-on identity. All OpenID is supposed to do is allow an OpenID provider to prove that you say you are. However many sites use identity authentication to provide authorization (however the two can be separated out)
i.e. One shows their passport at the airport to authenticate (or prove) the person's who's name is on the ticket they are using is them.
For me changing createLBPHFaceRecognizer() to
recognizer = cv2.face.LBPHFaceRecognizer_create()
fixed the problem
Use git fetch
to fetch all latest created branches.
Calling async
code from synchronous code can be quite tricky.
I explain the full reasons for this deadlock on my blog. In short, there's a "context" that is saved by default at the beginning of each await
and used to resume the method.
So if this is called in an UI context, when the await
completes, the async
method tries to re-enter that context to continue executing. Unfortunately, code using Wait
(or Result
) will block a thread in that context, so the async
method cannot complete.
The guidelines to avoid this are:
ConfigureAwait(continueOnCapturedContext: false)
as much as possible. This enables your async
methods to continue executing without having to re-enter the context.async
all the way. Use await
instead of Result
or Wait
.If your method is naturally asynchronous, then you (probably) shouldn't expose a synchronous wrapper.
If you have Mac OS X, go to the file root or the folder of your website.
Then right-hand click on it, go to get information, go to the very bottom (Sharing & Permissions), open that, change all read-only to read and write. Make sure to open padlock, go to setting icon, and choose Apply to the enclosed items...
Something like this could be used, and still maintaining meanings of return
(to return control signals) and echo
(to return information) and logging statements (to print debug/info messages).
v_verbose=1
v_verbose_f="" # verbose file name
FLAG_BGPID=""
e_verbose() {
if [[ $v_verbose -ge 0 ]]; then
v_verbose_f=$(tempfile)
tail -f $v_verbose_f &
FLAG_BGPID="$!"
fi
}
d_verbose() {
if [[ x"$FLAG_BGPID" != "x" ]]; then
kill $FLAG_BGPID > /dev/null
FLAG_BGPID=""
rm -f $v_verbose_f > /dev/null
fi
}
init() {
e_verbose
trap cleanup SIGINT SIGQUIT SIGKILL SIGSTOP SIGTERM SIGHUP SIGTSTP
}
cleanup() {
d_verbose
}
init
fun1() {
echo "got $1" >> $v_verbose_f
echo "got $2" >> $v_verbose_f
echo "$(( $1 + $2 ))"
return 0
}
a=$(fun1 10 20)
if [[ $? -eq 0 ]]; then
echo ">>sum: $a"
else
echo "error: $?"
fi
cleanup
In here, I'm redirecting debug messages to separate file, that is watched by tail, and if there is any changes then printing the change, trap
is used to make sure that background process always ends.
This behavior can also be achieved using redirection to /dev/stderr
, But difference can be seen at the time of piping output of one command to input of other command.
Here is a React Hooks specific solution for
Warning: Can't perform a React state update on an unmounted component.
You can declare let isMounted = true
inside useEffect
, which will be changed in the cleanup callback, as soon as the component is unmounted. Before state updates, you now check this variable conditionally:
useEffect(() => {
let isMounted = true; // note this flag denote mount status
someAsyncOperation().then(data => {
if (isMounted) setState(data);
})
return () => { isMounted = false }; // use effect cleanup to set flag false, if unmounted
});
const Parent = () => {_x000D_
const [mounted, setMounted] = useState(true);_x000D_
return (_x000D_
<div>_x000D_
Parent:_x000D_
<button onClick={() => setMounted(!mounted)}>_x000D_
{mounted ? "Unmount" : "Mount"} Child_x000D_
</button>_x000D_
{mounted && <Child />}_x000D_
<p>_x000D_
Unmount Child, while it is still loading. It won't set state later on,_x000D_
so no error is triggered._x000D_
</p>_x000D_
</div>_x000D_
);_x000D_
};_x000D_
_x000D_
const Child = () => {_x000D_
const [state, setState] = useState("loading (4 sec)...");_x000D_
useEffect(() => {_x000D_
let isMounted = true; // note this mounted flag_x000D_
fetchData();_x000D_
return () => {_x000D_
isMounted = false;_x000D_
}; // use effect cleanup to set flag false, if unmounted_x000D_
_x000D_
// simulate some Web API fetching_x000D_
function fetchData() {_x000D_
setTimeout(() => {_x000D_
// drop "if (isMounted)" to trigger error again_x000D_
if (isMounted) setState("data fetched");_x000D_
}, 4000);_x000D_
}_x000D_
}, []);_x000D_
_x000D_
return <div>Child: {state}</div>;_x000D_
};_x000D_
_x000D_
ReactDOM.render(<Parent />, document.getElementById("root"));
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.13.0/umd/react.production.min.js" integrity="sha256-32Gmw5rBDXyMjg/73FgpukoTZdMrxuYW7tj8adbN8z4=" crossorigin="anonymous"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.13.0/umd/react-dom.production.min.js" integrity="sha256-bjQ42ac3EN0GqK40pC9gGi/YixvKyZ24qMP/9HiGW7w=" crossorigin="anonymous"></script>_x000D_
<div id="root"></div>_x000D_
<script>var { useReducer, useEffect, useState, useRef } = React</script>
_x000D_
useAsync
HookWe can encapsulate all the boilerplate into a custom Hook, that just knows, how to deal with and automatically abort async functions in case the component unmounts before:
function useAsync(asyncFn, onSuccess) {
useEffect(() => {
let isMounted = true;
asyncFn().then(data => {
if (isMounted) onSuccess(data);
});
return () => { isMounted = false };
}, [asyncFn, onSuccess]);
}
// use async operation with automatic abortion on unmount_x000D_
function useAsync(asyncFn, onSuccess) {_x000D_
useEffect(() => {_x000D_
let isMounted = true;_x000D_
asyncFn().then(data => {_x000D_
if (isMounted) onSuccess(data);_x000D_
});_x000D_
return () => {_x000D_
isMounted = false;_x000D_
};_x000D_
}, [asyncFn, onSuccess]);_x000D_
}_x000D_
_x000D_
const Child = () => {_x000D_
const [state, setState] = useState("loading (4 sec)...");_x000D_
useAsync(delay, setState);_x000D_
return <div>Child: {state}</div>;_x000D_
};_x000D_
_x000D_
const Parent = () => {_x000D_
const [mounted, setMounted] = useState(true);_x000D_
return (_x000D_
<div>_x000D_
Parent:_x000D_
<button onClick={() => setMounted(!mounted)}>_x000D_
{mounted ? "Unmount" : "Mount"} Child_x000D_
</button>_x000D_
{mounted && <Child />}_x000D_
<p>_x000D_
Unmount Child, while it is still loading. It won't set state later on,_x000D_
so no error is triggered._x000D_
</p>_x000D_
</div>_x000D_
);_x000D_
};_x000D_
_x000D_
const delay = () => new Promise(resolve => setTimeout(() => resolve("data fetched"), 4000));_x000D_
_x000D_
_x000D_
ReactDOM.render(<Parent />, document.getElementById("root"));
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.13.0/umd/react.production.min.js" integrity="sha256-32Gmw5rBDXyMjg/73FgpukoTZdMrxuYW7tj8adbN8z4=" crossorigin="anonymous"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.13.0/umd/react-dom.production.min.js" integrity="sha256-bjQ42ac3EN0GqK40pC9gGi/YixvKyZ24qMP/9HiGW7w=" crossorigin="anonymous"></script>_x000D_
<div id="root"></div>_x000D_
<script>var { useReducer, useEffect, useState, useRef } = React</script>
_x000D_
1) To access DOM in component.
import {BrowserDomAdapter } from '@angular/platform-browser/src/browser/browser_adapter';
constructor(el: ElementRef,public zone:NgZone) {
this.el = el.nativeElement;
this.dom = new BrowserDomAdapter();
}
ngOnInit() {
this.dom.setValue(this.el,"Adding some content from ngOnInit");
}
You can include jQuery in following way. 2) Include you jquery file in index.html before angular2 loads
<head>
<title>Angular 2 QuickStart</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="styles.css">
<!-- jquery file -->
<script src="js/jquery-2.0.3.min.js"></script>
<script src="js/jquery-ui.js"></script>
<script src="node_modules/es6-shim/es6-shim.min.js"></script>
<script src="node_modules/zone.js/dist/zone.js"></script>
<script src="node_modules/reflect-metadata/Reflect.js"></script>
<script src="node_modules/systemjs/dist/system.src.js"></script>
<script src="systemjs.config.js"></script>
<script>
System.import('app').catch(function(err){ console.error(err); });
</script>
</head>
You can use Jquery in following way, Here i am using JQuery Ui date picker.
import { Directive, ElementRef} from '@angular/core';
declare var $:any;
@Directive({
selector: '[uiDatePicker]',
})
export class UiDatePickerDirective {
private el: HTMLElement;
constructor(el: ElementRef) {
this.el = el.nativeElement;
}
ngOnInit() {
$(this.el).datepicker({
onSelect: function(dateText:string) {
//do something on select
}
});
}
}
This work for me.
There are some really good answers given already, but I wanted to throw in my two cents. Here is a very simple way to convert a view object into a entity. The simple idea is that only the properties that exist in the view model get written to the entity. This is similar to @Anik Islam Abhi's answer, but has null propagation.
public static T MapVMUpdate<T>(object updatedVM, T original)
{
PropertyInfo[] originalProps = original.GetType().GetProperties();
PropertyInfo[] vmProps = updatedVM.GetType().GetProperties();
foreach (PropertyInfo prop in vmProps)
{
PropertyInfo projectProp = originalProps.FirstOrDefault(x => x.Name == prop.Name);
if (projectProp != null)
{
projectProp.SetValue(original, prop.GetValue(updatedVM));
}
}
return original;
}
Pros
Cons
To me the simplicity and low maintenance requirements of this approach outweigh the added database call.
As BalausC mentioned in a comment, you are probably looking for CSS (Cascading Style Sheets) not HTML attributes.
To position an element, a <table>
in your case you want to use either padding or margins.
the difference between margins and paddings can be seen as the "box model":
Image from HTML Dog article on margins and padding http://www.htmldog.com/guides/cssbeginner/margins/.
I highly recommend the article above if you need to learn how to use CSS.
To move the table down and right I would use margins like so:
table{
margin:25px 0 0 25px;
}
This is in shorthand so the margins are as follows:
margin: top right bottom left;
If you are using Java 1.6 or greater, you can use Arrays.copyOfRange
to copy a portion of the array. From the javadoc:
Copies the specified range of the specified array into a new array. The initial index of the range (from) must lie between zero and
original.length
, inclusive. The value atoriginal[from]
is placed into the initial element of the copy (unlessfrom == original.length
orfrom == to
). Values from subsequent elements in the original array are placed into subsequent elements in the copy. The final index of the range (to
), which must be greater than or equal tofrom
, may be greater thanoriginal.length
, in which casefalse
is placed in all elements of the copy whose index is greater than or equal tooriginal.length - from
. The length of the returned array will beto - from
.
Here is a simple example:
/**
* @Program that Copies the specified range of the specified array into a new
* array.
* CopyofRange8Array.java
* Author:-RoseIndia Team
* Date:-15-May-2008
*/
import java.util.*;
public class CopyofRange8Array {
public static void main(String[] args) {
//creating a short array
Object T[]={"Rose","India","Net","Limited","Rohini"};
// //Copies the specified short array upto specified range,
Object T1[] = Arrays.copyOfRange(T, 1,5);
for (int i = 0; i < T1.length; i++)
//Displaying the Copied short array upto specified range
System.out.println(T1[i]);
}
}
Use max()
:
Using itemgetter()
:
In [53]: lis=[(101, 153), (255, 827), (361, 961)]
In [81]: from operator import itemgetter
In [82]: max(lis,key=itemgetter(1))[0] #faster solution
Out[82]: 361
using lambda
:
In [54]: max(lis,key=lambda item:item[1])
Out[54]: (361, 961)
In [55]: max(lis,key=lambda item:item[1])[0]
Out[55]: 361
timeit
comparison:
In [30]: %timeit max(lis,key=itemgetter(1))
1000 loops, best of 3: 232 us per loop
In [31]: %timeit max(lis,key=lambda item:item[1])
1000 loops, best of 3: 556 us per loop
I previously came up with a different workaround that doesn't use stored procedures, but instead uses a parameter table and some connection_id() magic.
EDIT (Copied up from comments)
create a table that contains a column called connection_id
(make it a bigint). Place columns in that table for parameters for the view. Put a primary key on the connection_id
. replace into the parameter table and use CONNECTION_ID()
to populate the connection_id value. In the view use a cross join to the parameter table and put WHERE param_table.connection_id = CONNECTION_ID()
. This will cross join with only one row from the parameter table which is what you want. You can then use the other columns in the where clause for example where orders.order_id = param_table.order_id
.
use the scan method e.g.
curl -XGET 'localhost:9200/_search?search_type=scan&scroll=10m&size=50' -d '
{
"query" : {
"match_all" : {}
}
}
see here
Those are not files (they don't exist on disk) - they are just names under which some HTTP handlers are registered.
Take a look at the web.config
in .NET Framework's directory (e.g. C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config\web.config
):
<configuration>
<system.web>
<httpHandlers>
<add path="eurl.axd" verb="*" type="System.Web.HttpNotFoundHandler" validate="True" />
<add path="trace.axd" verb="*" type="System.Web.Handlers.TraceHandler" validate="True" />
<add path="WebResource.axd" verb="GET" type="System.Web.Handlers.AssemblyResourceLoader" validate="True" />
<add verb="*" path="*_AppService.axd" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="False" />
<add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="False"/>
<add path="*.axd" verb="*" type="System.Web.HttpNotFoundHandler" validate="True" />
</httpHandlers>
</system.web>
<configuration>
You can register your own handlers with a whatever.axd
name in your application's web.config
. While you can bind your handlers to whatever names you like, .axd
has the upside of working on IIS6 out of the box by default (IIS6 passes requests for *.axd
to the ASP.NET runtime by default). Using an arbitrary path for the handler, like Document.pdf
(or really anything except ASP.NET-specific extensions), requires more configuration work. In IIS7 in integrated pipeline mode this is no longer a problem, as all requests are processed by the ASP.NET stack.
<input type="text" style="width:50px;"/>
Change your And
s to AndAlso
s
A standard And
will test both expressions. If comp.Container
is Nothing
, then the second expression will raise a NullReferenceException
because you're accessing a property on a null object.
AndAlso
will short-circuit the logical evaluation. If comp.Container
is Nothing
, then the 2nd expression will not be evaluated.
Connect to the database:
db2 connect to <database-name>
List all tables:
db2 list tables for all
To list all tables in selected schema, use:
db2 list tables for schema <schema-name>
To describe a table, type:
db2 describe table <table-schema.table-name>
I've come across this problem on Typescript Version 3.8.3.
Intellisense is the best thing we could have but for me, the auto-import feature doesn't seem to work either. I've tried installing an extension even though auto-import didn't work. I've rechecked all the settings related to extensions. Finally, the auto-import feature started working when I clear the cache, from
C:\Users\username\AppData\Roaming\Code\Cache
& reload the VSCode
Note: AppData can only be visible in username if you select, Show (Hidden Items) from (View) Menu.
In some cases, we may end up thinking there is an import related error, while in actuality, unknowingly we might be coding using deprecated features or APIs in angular.
For example: if you're trying to code something like this
constructor (http: Http) {
//...}
Where Http is already deprecated and replaced with HttpClient in the newer version, so we may end up thinking an error related to this might be related to the auto-import error. For more information, you can refer Deprecated APIs and Features
In Oracle, the PL/SQL and SQL engines maintain some separation. When you execute a SQL statement within PL/SQL, it is handed off to the SQL engine, which has no knowledge of PL/SQL-specific structures like INDEX BY tables.
So, instead of declaring the type in the PL/SQL block, you need to create an equivalent collection type within the database schema:
CREATE OR REPLACE TYPE array is table of number;
/
Then you can use it as in these two examples within PL/SQL:
SQL> l
1 declare
2 p array := array();
3 begin
4 for i in (select level from dual connect by level < 10) loop
5 p.extend;
6 p(p.count) := i.level;
7 end loop;
8 for x in (select column_value from table(cast(p as array))) loop
9 dbms_output.put_line(x.column_value);
10 end loop;
11* end;
SQL> /
1
2
3
4
5
6
7
8
9
PL/SQL procedure successfully completed.
SQL> l
1 declare
2 p array := array();
3 begin
4 select level bulk collect into p from dual connect by level < 10;
5 for x in (select column_value from table(cast(p as array))) loop
6 dbms_output.put_line(x.column_value);
7 end loop;
8* end;
SQL> /
1
2
3
4
5
6
7
8
9
PL/SQL procedure successfully completed.
Additional example based on comments
Based on your comment on my answer and on the question itself, I think this is how I would implement it. Use a package so the records can be fetched from the actual table once and stored in a private package global; and have a function that returns an open ref cursor.
CREATE OR REPLACE PACKAGE p_cache AS
FUNCTION get_p_cursor RETURN sys_refcursor;
END p_cache;
/
CREATE OR REPLACE PACKAGE BODY p_cache AS
cache_array array;
FUNCTION get_p_cursor RETURN sys_refcursor IS
pCursor sys_refcursor;
BEGIN
OPEN pCursor FOR SELECT * from TABLE(CAST(cache_array AS array));
RETURN pCursor;
END get_p_cursor;
-- Package initialization runs once in each session that references the package
BEGIN
SELECT level BULK COLLECT INTO cache_array FROM dual CONNECT BY LEVEL < 10;
END p_cache;
/
You have to reset the password! steps for mac osx(tested and working) and ubuntu
Stop MySQL using
sudo service mysql stop
or
$ sudo /usr/local/mysql/support-files/mysql.server stop
Start it in safe mode:
$ sudo mysqld_safe --skip-grant-tables --skip-networking
(above line is the whole command)
This will be an ongoing command until the process is finished so open another shell/terminal window, log in without a password:
$ mysql -u root
mysql> UPDATE mysql.user SET Password=PASSWORD('password') WHERE User='root';
As per @IberoMedia's comment, for newer versions of MySQL, the field is called authentication_string
:
mysql> UPDATE mysql.user SET authentication_string =PASSWORD('password') WHERE User='root';
Start MySQL using:
sudo service mysql start
or
sudo /usr/local/mysql/support-files/mysql.server start
your new password is 'password'.
NOTE: for version of mysql > 5.7 try this:
update mysql.user set authentication_string='password' where user='root';
A solution is available that allows me to keep my MacPorts installation by configuring the Ipython kernelspec.
Requirements:
For python 2.x:
$ cd /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin
$ sudo ./ipython kernelspec install-self
For python 3.x:
$ cd /opt/local/Library/Frameworks/Python.framework/Versions/3.4/bin
$ sudo ./ipython kernelspec install-self
Now you can open an Ipython notebook and then choose a python 2.x or a python 3.x notebook.
What all should I know about web.xml apart from element name and their usage ?
The SINGLE most important JSP configuration parameter of ALL TIME is in your web.xml. Ladies and gentlemen, I give you... the TRIM-DIRECTIVE-WHITESPACES option!
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<trim-directive-whitespaces>true</trim-directive-whitespaces>
</jsp-property-group>
</jsp-config>
This removes all the hundreds or thousands of lines of white space that you'll get in your generated HTML if you use any tag libraries (loops are particularly ugly & wasteful).
The other big one is the default web page (the page you get automatically sent to when you don't enter a web page in the URL):
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
Blanket.js works perfect too.
npm install --save-dev blanket
in front of your test/tests.js
require('blanket')({
pattern: function (filename) {
return !/node_modules/.test(filename);
}
});
run mocha -R html-cov > coverage.html
if number%2==0
will tell you that it's even. So odd numbers would be the else statement there. The "%" is the mod sign which returns the remainder after dividing. So essentially we're saying if the number is divisible by two we can safely assume it's even. Otherwise it's odd (it's a perfect correlation!)
As for the asterisk placing you want to prepend the asterisks with the number of spaces correlated to the line it's on. In your example
***** line 0
*** line 1
* line 2
We'll want to space accordingly
0*****
01***
012*
First convert this structure to a "dictionary" object:
dict = {}
json.forEach(function(x) {
dict[x.code] = x.name
})
and then simply
countryName = dict[countryCode]
For a list of countries this doesn't matter much, but for larger lists this method guarantees the instant lookup, while the naive searching will depend on the list size.
This is technically a language-dependent, but almost all languages treat this subject the same. When there is a type mismatch between two data types in an expression, most languages will try to cast the data on one side of the =
to match the data on the other side according to a set of predefined rules.
When dividing two numbers of the same type (integers, doubles, etc.) the result will always be of the same type (so 'int/int' will always result in int).
In this case you have
double var = integer result
which casts the integer result to a double after the calculation in which case the fractional data is already lost. (most languages will do this casting to prevent type inaccuracies without raising an exception or error).
If you'd like to keep the result as a double you're going to want to create a situation where you have
double var = double result
The easiest way to do that is to force the expression on the right side of an equation to cast to double:
c = a/(double)b
Division between an integer and a double will result in casting the integer to the double (note that when doing maths, the compiler will often "upcast" to the most specific data type this is to prevent data loss).
After the upcast, a
will wind up as a double and now you have division between two doubles. This will create the desired division and assignment.
AGAIN, please note that this is language specific (and can even be compiler specific), however almost all languages (certainly all the ones I can think of off the top of my head) treat this example identically.
I'm using a kendo grid and therefore can't change the implementation to a getter method but I want to test around this (mocking the grid) and not test the grid itself. I was using a spy object but this doesn't support property mocking so I do this:
this.$scope.ticketsGrid = {
showColumn: jasmine.createSpy('showColumn'),
hideColumn: jasmine.createSpy('hideColumn'),
select: jasmine.createSpy('select'),
dataItem: jasmine.createSpy('dataItem'),
_data: []
}
It's a bit long winded but it works a treat
The nature of wanting to include the row where A == 5
and all rows upto but not including the row where A == 8
means we will end up using iloc
(loc
includes both ends of slice).
In order to get the index labels we use idxmax
. This will return the first position of the maximum value. I run this on a boolean series where A == 5
(then when A == 8
) which returns the index value of when A == 5
first happens (same thing for A == 8
).
Then I use searchsorted
to find the ordinal position of where the index label (that I found above) occurs. This is what I use in iloc
.
i5, i8 = df.index.searchsorted([df.A.eq(5).idxmax(), df.A.eq(8).idxmax()])
df.iloc[i5:i8]
numpy
you can further enhance this by using the underlying numpy objects the analogous numpy functions. I wrapped it up into a handy function.
def find_between(df, col, v1, v2):
vals = df[col].values
mx1, mx2 = (vals == v1).argmax(), (vals == v2).argmax()
idx = df.index.values
i1, i2 = idx.searchsorted([mx1, mx2])
return df.iloc[i1:i2]
find_between(df, 'A', 5, 8)
For yarn users:
yarn add package_name@version_number
File.Create
returns a FileStream
object that you can call Close()
on.
In addition to setting the registry entry for AuthServerWhitelist you should also set AuthSchemes: "ntlm,negotiate" (or just "ntlm" as appropriate for your situation). Using the above templates the policy for that will be "Supported authentication schemes"
This is because those handlers do not preserve scope. From react documentation: react documentation
Check the "no autobinding" section. You should write the handler like: onClick = () => {}
(This answer is mostly for googlers, because OP has solved his problem already.)
The meaning of prepended ::
- scope resulution operator - has been described in other answers, but I'd like to add why people are using it.
The meaning is "take name from global namespace, not anything else". But why would this need to be spelled explicitly?
Use case - namespace clash
When you have the same name in global namespace and in local/nested namespace, the local one will be used. So if you want the global one, prepend it with ::
. This case was described in @Wyatt Anderson's answer, plese see his example.
Use case - emphasise non-member function
When you are writing a member function (a method), calls to other member function and calls to non-member (free) functions look alike:
class A {
void DoSomething() {
m_counter=0;
...
Twist(data);
...
Bend(data);
...
if(m_counter>0) exit(0);
}
int m_couner;
...
}
But it might happen that Twist
is a sister member function of class A
, and Bend
is a free function. That is, Twist
can use and modify m_couner
and Bend
cannot. So if you want to ensure that m_counter
remains 0, you have to check Twist
, but you don't need to check Bend
.
So to make this stand out more clearly, one can either write this->Twist
to show the reader that Twist
is a member function or write ::Bend
to show that Bend
is free. Or both. This is very useful when you are doing or planning a refactoring.
As of now you still can't animate rotations with jQuery, but you can with CSS3 animations, then simply add and remove the class with jQuery to make the animation occur.
HTML
<img src="http://puu.sh/csDxF/2246d616d8.png" width="30" height="30"/>
CSS3
img {
-webkit-transform: rotate(-90deg);
-moz-transform: rotate(-90deg);
-o-transform: rotate(-90deg);
-ms-transform: rotate(-90deg);
transform: rotate(-90deg);
transition-duration:0.4s;
}
.rotate {
-webkit-transform: rotate(0deg);
-moz-transform: rotate(0deg);
-o-transform: rotate(0deg);
-ms-transform: rotate(0deg);
transform: rotate(0deg);
transition-duration:0.4s;
}
jQuery
$(document).ready(function() {
$("img").mouseenter(function() {
$(this).addClass("rotate");
});
$("img").mouseleave(function() {
$(this).removeClass("rotate");
});
});
You code looks like automatically generated from other code - you should check that html elements with id=i1
and i2
and name=username
and password
exists before processing them.
It can be done by simply iterating across the main array and check whether other array contains any of the target element or not.
Try this:
function Check(A) {
var myarr = ["apple", "banana", "orange"];
var i, j;
var totalmatches = 0;
for (i = 0; i < myarr.length; i++) {
for (j = 0; j < A.length; ++j) {
if (myarr[i] == A[j]) {
totalmatches++;
}
}
}
if (totalmatches > 0) {
return true;
} else {
return false;
}
}
var fruits1 = new Array("apple", "grape");
alert(Check(fruits1));
var fruits2 = new Array("apple", "banana", "pineapple");
alert(Check(fruits2));
var fruits3 = new Array("grape", "pineapple");
alert(Check(fruits3));
Try running CREATE TABLE [schemaname].[tableName]; GO;
This assumes the schemaname exists in your database. Please use CREATE SCHEMA [schemaname]
if you need to create a schema as well.
EDIT: updated to note SQL Server 11.03 requiring this be the only statement in the batch.
I created a class that has the following method:
Create Salt
Hash Input
Validate input
public class CryptographyProcessor
{
public string CreateSalt(int size)
{
//Generate a cryptographic random number.
RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider();
byte[] buff = new byte[size];
rng.GetBytes(buff);
return Convert.ToBase64String(buff);
}
public string GenerateHash(string input, string salt)
{
byte[] bytes = Encoding.UTF8.GetBytes(input + salt);
SHA256Managed sHA256ManagedString = new SHA256Managed();
byte[] hash = sHA256ManagedString.ComputeHash(bytes);
return Convert.ToBase64String(hash);
}
public bool AreEqual(string plainTextInput, string hashedInput, string salt)
{
string newHashedPin = GenerateHash(plainTextInput, salt);
return newHashedPin.Equals(hashedInput);
}
}
I was getting same error (TypeError: unhashable type: 'slice') with below code:
included_cols = [2,4,10]
dataset = dataset[:,included_cols] #Columns 2,4 and 10 are included.
Resolved with below code by putting iloc after dataset:
included_cols = [2,4,10]
dataset = dataset.iloc[:,included_cols] #Columns 2,4 and 10 are included.
document.getElementById('btnID').style.visibility='hidden';
If you need to process the columns separately, I like to destructure the columns with the zip(*iterable)
pattern (effectively "unzip"). So for your example:
ids, names, zips, phones = zip(*(
(row[1], row[2], row[6], row[7])
for row in reader
))
It is a reference to the current file name. In the file foo.rb
, __FILE__
would be interpreted as "foo.rb"
.
Edit: Ruby 1.9.2 and 1.9.3 appear to behave a little differently from what Luke Bayes said in his comment. With these files:
# test.rb
puts __FILE__
require './dir2/test.rb'
# dir2/test.rb
puts __FILE__
Running ruby test.rb
will output
test.rb
/full/path/to/dir2/test.rb
I suppose this thread has a very good description of the problem with table refresh.
EDIT ouch, too late... I know read your comment stating that you want to keep the feature-x changeset around, so the cloning approach here doesn't work.
I'll still let the answer here for it may help others.
If you want to completely get rid of "feature X", because, for example, it didn't work, you can clone. This is one of the method explained in the article and it does work, and it talks specifically about heads.
As far as I understand you have this and want to get rid of the "feature-x" head once and for all:
@ changeset: 7:00a7f69c8335
|\ tag: tip
| | parent: 4:31b6f976956b
| | parent: 2:0a834fa43688
| | summary: merge
| |
| | o changeset: 5:013a3e954cfd
| |/ summary: Closed branch feature-x
| |
| o changeset: 4:31b6f976956b
| | summary: Changeset2
| |
| o changeset: 3:5cb34be9e777
| | parent: 1:1cc843e7f4b5
| | summary: Changeset 1
| |
o | changeset: 2:0a834fa43688
|/ summary: Changeset C
|
o changeset: 1:1cc843e7f4b5
| summary: Changeset B
|
o changeset: 0:a9afb25eaede
summary: Changeset A
So you do this:
hg clone . ../cleanedrepo --rev 7
And you'll have the following, and you'll see that feature-x is indeed gone:
@ changeset: 5:00a7f69c8335
|\ tag: tip
| | parent: 4:31b6f976956b
| | parent: 2:0a834fa43688
| | summary: merge
| |
| o changeset: 4:31b6f976956b
| | summary: Changeset2
| |
| o changeset: 3:5cb34be9e777
| | parent: 1:1cc843e7f4b5
| | summary: Changeset 1
| |
o | changeset: 2:0a834fa43688
|/ summary: Changeset C
|
o changeset: 1:1cc843e7f4b5
| summary: Changeset B
|
o changeset: 0:a9afb25eaede
summary: Changeset A
I may have misunderstood what you wanted but please don't mod down, I took time reproducing your use case : )
From MSDN:
Set Keyword: In VBA, the Set keyword is necessary to distinguish between assignment of an object and assignment of the default property of the object. Since default properties are not supported in Visual Basic .NET, the Set keyword is not needed and is no longer supported.
This is really strange... Once set, the default Charset is cached and it isn't changed while the class is in memory. Setting the "file.encoding"
property with System.setProperty("file.encoding", "Latin-1");
does nothing. Every time Charset.defaultCharset()
is called it returns the cached charset.
Here are my results:
Default Charset=ISO-8859-1
file.encoding=Latin-1
Default Charset=ISO-8859-1
Default Charset in Use=ISO8859_1
I'm using JVM 1.6 though.
(update)
Ok. I did reproduce your bug with JVM 1.5.
Looking at the source code of 1.5, the cached default charset isn't being set. I don't know if this is a bug or not but 1.6 changes this implementation and uses the cached charset:
JVM 1.5:
public static Charset defaultCharset() {
synchronized (Charset.class) {
if (defaultCharset == null) {
java.security.PrivilegedAction pa =
new GetPropertyAction("file.encoding");
String csn = (String) AccessController.doPrivileged(pa);
Charset cs = lookup(csn);
if (cs != null)
return cs;
return forName("UTF-8");
}
return defaultCharset;
}
}
JVM 1.6:
public static Charset defaultCharset() {
if (defaultCharset == null) {
synchronized (Charset.class) {
java.security.PrivilegedAction pa =
new GetPropertyAction("file.encoding");
String csn = (String) AccessController.doPrivileged(pa);
Charset cs = lookup(csn);
if (cs != null)
defaultCharset = cs;
else
defaultCharset = forName("UTF-8");
}
}
return defaultCharset;
}
When you set the file encoding to file.encoding=Latin-1
the next time you call Charset.defaultCharset()
, what happens is, because the cached default charset isn't set, it will try to find the appropriate charset for the name Latin-1
. This name isn't found, because it's incorrect, and returns the default UTF-8
.
As for why the IO classes such as OutputStreamWriter
return an unexpected result,
the implementation of sun.nio.cs.StreamEncoder
(witch is used by these IO classes) is different as well for JVM 1.5 and JVM 1.6. The JVM 1.6 implementation is based in the Charset.defaultCharset()
method to get the default encoding, if one is not provided to IO classes. The JVM 1.5 implementation uses a different method Converters.getDefaultEncodingName();
to get the default charset. This method uses its own cache of the default charset that is set upon JVM initialization:
JVM 1.6:
public static StreamEncoder forOutputStreamWriter(OutputStream out,
Object lock,
String charsetName)
throws UnsupportedEncodingException
{
String csn = charsetName;
if (csn == null)
csn = Charset.defaultCharset().name();
try {
if (Charset.isSupported(csn))
return new StreamEncoder(out, lock, Charset.forName(csn));
} catch (IllegalCharsetNameException x) { }
throw new UnsupportedEncodingException (csn);
}
JVM 1.5:
public static StreamEncoder forOutputStreamWriter(OutputStream out,
Object lock,
String charsetName)
throws UnsupportedEncodingException
{
String csn = charsetName;
if (csn == null)
csn = Converters.getDefaultEncodingName();
if (!Converters.isCached(Converters.CHAR_TO_BYTE, csn)) {
try {
if (Charset.isSupported(csn))
return new CharsetSE(out, lock, Charset.forName(csn));
} catch (IllegalCharsetNameException x) { }
}
return new ConverterSE(out, lock, csn);
}
But I agree with the comments. You shouldn't rely on this property. It's an implementation detail.
How about pyjs?
From the above website:
pyjs is a Rich Internet Application (RIA) Development Platform for both Web and Desktop. With pyjs you can write your JavaScript-powered web applications entirely in Python.
In my case I was trying to connect to a remote mysql server on cent OS. After going through a lot of solutions (granting all privileges, removing ip bindings,enabling networking) problem was still not getting solved.
As it turned out, while looking into various solutions,I came across iptables, which made me realize mysql port 3306 was not accepting connections.
Here is a small note on how I checked and resolved this issue.
telnet (mysql server ip) [portNo]
-Adding ip table rule to allow connections on the port:
iptables -A INPUT -i eth0 -p tcp -m tcp --dport 3306 -j ACCEPT
-Would not recommend this for production environment, but if your iptables are not configured properly, adding the rules might not still solve the issue. In that case following should be done:
service iptables stop
Hope this helps.
I've resolved the issue, by going to setting and permalink, just choose post-name.
it should work and you'll see the exact page.. rather than dashboard/xampp page again
Best of Luck
ImageIcon image = new ImageIcon("image/pic1.jpg");
JLabel label = new JLabel("", image, JLabel.CENTER);
JPanel panel = new JPanel(new BorderLayout());
panel.add( label, BorderLayout.CENTER );
Adding additional information to emboss's answer.
To put it simply, there is an incorrect cert in your certificate chain.
For example, your certificate authority will have most likely given you 3 files.
You most likely combined all of these files into one bundle.
-----BEGIN CERTIFICATE-----
(Your Primary SSL certificate: your_domain_name.crt)
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
(Your Intermediate certificate: DigiCertCA.crt)
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
(Your Root certificate: TrustedRoot.crt)
-----END CERTIFICATE-----
If you create the bundle, but use an old, or an incorrect version of your Intermediate Cert (DigiCertCA.crt in my example), you will get the exact symptoms you are describing.
Redownload all certs from your certificate authority and make a fresh bundle.
You can explicitly get back Identity columns using SqlServer's OUTPUT clause: Assuming you have an identity/auto-increment column called ID:
$sql='INSERT INTO [xyz].[myTable] (Field1, Field2, Field3) OUTPUT Inserted.ID VALUES (1, 2, '3')';
Note that in Perl DBI you would then execute the INSERT statement, just like it was a SELECT. And capture the output like it was a SELECT
$sth->execute($sql);
@row=$sth->fetchrow_array; #Only 1 val in 1 row returned
print "Inserted ID: ", $row[0], "\n";
Presumably this is preferable because it doesn't require another request.
Here's a one liner if you have quick access to the mysql cli:
mysql> select convert_tz(from_unixtime(1467095851), 'UTC', 'MST') as 'local time';
+---------------------+
| local time |
+---------------------+
| 2016-06-27 23:37:31 |
+---------------------+
Replace 'MST'
with your desired timezone. I live in Arizona thus the conversion from UTC to MST.
This was already a month ago, but oh well.
I could be wrong, but for your question I get the feeling that bind_param
isn't really the problem here. You always need to define some conditions, be it directly in the query string itself, of using bind_param
to set the ?
placeholders. That's not really an issue.
The problem I had using MySQLi SELECT *
queries is the bind_result
part. That's where it gets interesting. I came across this post from Jeffrey Way: http://jeff-way.com/2009/05/27/tricky-prepared-statements/(This link is no longer active). The script basically loops through the results and returns them as an array — no need to know how many columns there are, and you can still use prepared statements.
In this case it would look something like this:
$stmt = $mysqli->prepare(
'SELECT * FROM tablename WHERE field1 = ? AND field2 = ?');
$stmt->bind_param('ss', $value, $value2);
$stmt->execute();
Then use the snippet from the site:
$meta = $stmt->result_metadata();
while ($field = $meta->fetch_field()) {
$parameters[] = &$row[$field->name];
}
call_user_func_array(array($stmt, 'bind_result'), $parameters);
while ($stmt->fetch()) {
foreach($row as $key => $val) {
$x[$key] = $val;
}
$results[] = $x;
}
And $results
now contains all the info from SELECT *
. So far I found this to be an ideal solution.
Short answer: Yes, you need to rename .cpp files to c, so you can write C: https://msdn.microsoft.com/en-us/library/bb384838.aspx?f=255&MSPPError=-2147217396
From the link above:
By default, the Visual C++ compiler treats all files that end in .c as C source code, and all files that end in .cpp as C++ source code. To force the compiler to treat all files as C regardless of file name extension, use the /Tc compiler option.
That being said, I do not recommend learning C language in Visual Studio, why VS? It does have lots of features you are not going to use while learning C
well after spending about 10 days trying to solve this issue, i finally figured it out today and decide to post the solution
in the start menu, type RUN, open it the in the run box, type SERVICES.MSC, click okay
ensure that these two services are started SQL Server(MSSQLSERVER) SQL Server Vss writer
java.time makes it simple since Java 8. And thread safe.
ZonedDateTime.now( ZoneOffset.UTC ).format( DateTimeFormatter.ISO_INSTANT )
Result: 2015-04-14T11:07:36.639Z
You may be tempted to use lighter
Temporal
such asInstant
orLocalDateTime
, but they lacks formatter support or time zone data. OnlyZonedDateTime
works out of the box.
By tuning or chaining the options / operations of ZonedDateTime and DateTimeFormatter, you can easily control the timezone and precision, to a certain degree:
ZonedDateTime.now( ZoneId.of( "Europe/Paris" ) )
.truncatedTo( ChronoUnit.MINUTES )
.format( DateTimeFormatter.ISO_DATE_TIME )
Result: 2015-04-14T11:07:00+01:00[Europe/Paris]
Refined requirements, such as removing the seconds part, must still be served by custom formats or custom post process.
.format( DateTimeFormatter.ISO_LOCAL_DATE_TIME ) // 2015-04-14T11:07:00
.format( DateTimeFormatter.ISO_LOCAL_DATE ) // 2015-04-14
.format( DateTimeFormatter.ISO_LOCAL_TIME ) // 11:07:00
.format( DateTimeFormatter.ofPattern( "yyyy-MM-dd HH:mm" ) ) // 2015-04-14 11:07
For Java 6 & 7, you may consider back-ports of java.time such as ThreeTen-Backport, which also has an Android port. Both are lighter than Joda, and has learned from Joda's experience - esp. considering that java.time is designed by Joda's author.
"." | "!" | "~" | "*" | "'" | "(" | ")"
are also acceptable [RFC2396]. Really, anything can be in a GET parameter if it is properly encoded.
it seems that you should set your command as an String[]
,for example:
String[] command = new String[]{"rmiregistry","2020"};
Runtime.getRuntime().exec(command);
it just like the style of main(String[] args)
.
#import "NSString+Extension.h"
//@interface NSString (Extension)
//
//- (BOOL) isAnEmail;
//- (BOOL) isNumeric;
//
//@end
@implementation NSString (Extension)
- (BOOL) isNumeric
{
NSString *emailRegex = @"[0-9]+";
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
return [emailTest evaluateWithObject:self];
// NSString *localDecimalSymbol = [[NSLocale currentLocale] objectForKey:NSLocaleDecimalSeparator];
// NSMutableCharacterSet *decimalCharacterSet = [NSMutableCharacterSet characterSetWithCharactersInString:localDecimalSymbol];
// [decimalCharacterSet formUnionWithCharacterSet:[NSCharacterSet alphanumericCharacterSet]];
//
// NSCharacterSet* nonNumbers = [decimalCharacterSet invertedSet];
// NSRange r = [self rangeOfCharacterFromSet: nonNumbers];
//
// if (r.location == NSNotFound)
// {
// // check to see how many times the decimal symbol appears in the string. It should only appear once for the number to be numeric.
// int numberOfOccurances = [[self componentsSeparatedByString:localDecimalSymbol] count]-1;
// return (numberOfOccurances > 1) ? NO : YES;
// }
// else return NO;
}
I used this:
<?php echo get_post_field('post_content', $post->ID); ?>
and this even more concise:
<?= get_post_field('post_content', $post->ID) ?>
I know this is an old one but it comes up top of Google and all the links provided now seem out of date.
This is the latest list of types Facebook accepts: https://developers.facebook.com/docs/reference/opengraph
If you don't use one of these then the type will default to 'website' which is best used for home pages/summarising a web site.
In answer to the OP you would now want to use a place which will allow you to add lat/long location details.
You can use fiddler web debugger to import the HAR and then it is very easy from their on... Ctrl+A (select all) then Ctrl+c (copy summary) then paste in excel and have fun
First of all, the provided long code:
<xsl:choose>
<xsl:when test="OU_NAME='OU_ADDR1'"> --comparing two elements coming from XML
<!--remove if adrees already contain operating unit name <xsl:value-of select="OU_NAME"/> <fo:block/>-->
<xsl:if test="OU_ADDR1 !='' ">
<xsl:value-of select="OU_ADDR1"/>
<fo:block/>
</xsl:if>
<xsl:if test="LE_ADDR2 !='' ">
<xsl:value-of select="OU_ADDR2"/>
<fo:block/>
</xsl:if>
<xsl:if test="LE_ADDR3 !='' ">
<xsl:value-of select="OU_ADDR3"/>
<fo:block/>
</xsl:if>
<xsl:if test="OU_TOWN_CITY !=''">
<xsl:value-of select="OU_TOWN_CITY"/>,
<fo:leader leader-pattern="space" leader-length="2.0pt"/>
</xsl:if>
<xsl:value-of select="OU_REGION2"/>
<fo:leader leader-pattern="space" leader-length="3.0pt"/>
<xsl:value-of select="OU_POSTALCODE"/>
<fo:block/>
<xsl:value-of select="OU_COUNTRY"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="OU_NAME"/>
<fo:block/>
<xsl:if test="OU_ADDR1 !='' ">
<xsl:value-of select="OU_ADDR1"/>
<fo:block/>
</xsl:if>
<xsl:if test="LE_ADDR2 !='' ">
<xsl:value-of select="OU_ADDR2"/>
<fo:block/>
</xsl:if>
<xsl:if test="LE_ADDR3 !='' ">
<xsl:value-of select="OU_ADDR3"/>
<fo:block/>
</xsl:if>
<xsl:if test="OU_TOWN_CITY !=''">
<xsl:value-of select="OU_TOWN_CITY"/>,
<fo:leader leader-pattern="space" leader-length="2.0pt"/>
</xsl:if>
<xsl:value-of select="OU_REGION2"/>
<fo:leader leader-pattern="space" leader-length="3.0pt"/>
<xsl:value-of select="OU_POSTALCODE"/>
<fo:block/>
<xsl:value-of select="OU_COUNTRY"/>
</xsl:otherwise>
</xsl:choose>
is equivalent to this, much shorter code:
<xsl:if test="not(OU_NAME='OU_ADDR1)'">
<xsl:value-of select="OU_NAME"/>
</xsl:if>
<xsl:if test="OU_ADDR1 !='' ">
<xsl:value-of select="OU_ADDR1"/>
<fo:block/>
</xsl:if>
<xsl:if test="LE_ADDR2 !='' ">
<xsl:value-of select="OU_ADDR2"/>
<fo:block/>
</xsl:if>
<xsl:if test="LE_ADDR3 !='' ">
<xsl:value-of select="OU_ADDR3"/>
<fo:block/>
</xsl:if>
<xsl:if test="OU_TOWN_CITY !=''">
<xsl:value-of select="OU_TOWN_CITY"/>,
<fo:leader leader-pattern="space" leader-length="2.0pt"/>
</xsl:if>
<xsl:value-of select="OU_REGION2"/>
<fo:leader leader-pattern="space" leader-length="3.0pt"/>
<xsl:value-of select="OU_POSTALCODE"/>
<fo:block/>
<xsl:value-of select="OU_COUNTRY"/>
Now, to your question:
how to compare two elements coming from xml as string
In Xpath 1.0 strings can be compared only for equality (or inequality), using the operator =
and the function not()
together with the operator =
.
$str1 = $str2
evaluates to true()
exactly when the string $str1
is equal to the string $str2
.
not($str1 = $str2)
evaluates to true()
exactly when the string $str1
is not equal to the string $str2
.
There is also the !=
operator. It generally should be avoided because it has anomalous behavior whenever one of its operands is a node-set.
Now, the rules for comparing two element nodes are similar:
$el1 = $el2
evaluates to true()
exactly when the string value of $el1
is equal to the string value of $el2
.
not($el1 = $el2)
evaluates to true()
exactly when the string value of $el1
is not equal to the string value of $el2
.
However, if one of the operands of =
is a node-set, then
$ns = $str
evaluates to true()
exactly when there is at least one node in the node-set $ns1
, whose string value is equal to the string $str
$ns1 = $ns2
evaluates to true()
exactly when there is at least one node in the node-set $ns1
, whose string value is equal to the string value of some node from $ns2
Therefore, the expression:
OU_NAME='OU_ADDR1'
evaluates to true()
only when there is at least one element child of the current node that is named OU_NAME
and whose string value is the string 'OU_ADDR1'.
This is obviously not what you want!
Most probably you want:
OU_NAME=OU_ADDR1
This expression evaluates to true
exactly there is at least one OU_NAME
child of the current node and one OU_ADDR1
child of the current node with the same string value.
Finally, in XPath 2.0, strings can be compared also using the value comparison operators lt
, le
, eq
, gt
, ge
and the inherited from XPath 1.0 general comparison operator =
.
Trying to evaluate a value comparison operator when one or both of its arguments is a sequence of more than one item results in error.
In here:
if (ValidationUtils.isNullOrEmpty(lastName)) {
registrationErrors.add(ValidationErrors.LAST_NAME);
}
if (!ValidationUtils.isEmailValid(email)) {
registrationErrors.add(ValidationErrors.EMAIL);
}
you check for null or empty value on lastname, but in isEmailValid you don't check for empty value. Something like this should do
if (ValidationUtils.isNullOrEmpty(email) || !ValidationUtils.isEmailValid(email)) {
registrationErrors.add(ValidationErrors.EMAIL);
}
or better yet, fix your ValidationUtils.isEmailValid() to cope with null email values. It shouldn't crash, it should just return false.
Be sure that the place where you adding
<uses-permission android:name="android.permission.INTERNET"/>
is right.
You should write it like that in AndroidManifest.xml :
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.project">
<uses-permission android:name="android.permission.INTERNET"/>
Dont make my mistakes :)
I found the correct solution you can use this code
$('.close').click();
See this solution: Bootstrap TouchCarousel. A drop-in perfection for Twitter Bootstrap's Carousel (v3) to enable gestures on touch devices. http://ixisio.github.io/bootstrap-touch-carousel/
If you can't use "viewWillDisappear" or similar method, try to subclass UINavigationController. This is the header class:
#import <Foundation/Foundation.h>
@class MyViewController;
@interface CCNavigationController : UINavigationController
@property (nonatomic, strong) MyViewController *viewController;
@end
Implementation class:
#import "CCNavigationController.h"
#import "MyViewController.h"
@implementation CCNavigationController {
}
- (UIViewController *)popViewControllerAnimated:(BOOL)animated {
@"This is the moment for you to do whatever you want"
[self.viewController doCustomMethod];
return [super popViewControllerAnimated:animated];
}
@end
In the other hand, you need to link this viewController to your custom NavigationController, so, in your viewDidLoad method for your regular viewController do this:
@implementation MyViewController {
- (void)viewDidLoad
{
[super viewDidLoad];
((CCNavigationController*)self.navigationController).viewController = self;
}
}
I can't seem to make that work without hacks either, so what I did was just use the drop-down menu in place of a select box and send the info through a hidden field, like so (using your code):
Jquery:
$('.dropdown-menu li').click(function(e){
e.preventDefault();
var selected = $(this).text();
$('.category').val(selected);
});
HTML:
<div class="container">
<div class="col-sm-7 pull-right well">
<form class="form-inline" action="#" method="get">
<div class="input-group col-sm-8">
<input class="form-control" type="text" value="" placeholder="Search" name="q">
<div class="input-group-btn">
<button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">Select <span class="caret"></span></button>
<ul class="dropdown-menu">
<li><a href="#">1</a></li>
<li><a href="#">2</a></li>
<li><a href="#">3</a></li>
</ul>
<input type="hidden" name="category" class="category">
</div><!-- /btn-group -->
</div>
<button class="btn btn-primary col-sm-3 pull-right" type="submit">Search</button>
</form>
</div>
</div>
Not sure if that will work for what you want, but it is an option for you.
This solution is somewhat similar to the answer by Erwin Brandstetter, but uses only the sql language.
Not all PostgreSQL installations has the plpqsql language by default, this means you may have to call CREATE LANGUAGE plpgsql
before creating the function, and afterwards have to remove the language again, to leave the database in the same state as it was before (but only if the database did not have the plpgsql language to begin with). See how the complexity grows?
Adding the plpgsql may not be issue if you are running your script locally, however, if the script is used to set up schema at a customer it may not be desirable to leave changes like this in the customers database.
This solution is inspired by a post by Andreas Scherbaum.
-- Function which creates table
CREATE OR REPLACE FUNCTION create_table () RETURNS TEXT AS $$
CREATE TABLE table_name (
i int
);
SELECT 'extended_recycle_bin created'::TEXT;
$$
LANGUAGE 'sql';
-- Test if table exists, and if not create it
SELECT CASE WHEN (SELECT true::BOOLEAN
FROM pg_catalog.pg_tables
WHERE schemaname = 'public'
AND tablename = 'table_name'
) THEN (SELECT 'success'::TEXT)
ELSE (SELECT create_table())
END;
-- Drop function
DROP FUNCTION create_table();
To avoid this issue, you need to remove NO_ZERO_DATE
from the mysql mode configuration.
NO_ZERO_DATE
(and its trailing comma) from the configuration.This is a very common issue in the local environment with wamp or xamp.
Best practice:
compile 'com.android.support:design:25.0.1'
to gradle fileCoordinatorLayout
as root view.layout_anchor
to the FAB and set it to the top viewlayout_anchorGravity
to the FAB and set it to: bottom|right|end
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="@+id/viewA"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.6"
android:background="@android:color/holo_purple"
android:orientation="horizontal"/>
<LinearLayout
android:id="@+id/viewB"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.4"
android:background="@android:color/holo_orange_light"
android:orientation="horizontal"/>
</LinearLayout>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:clickable="true"
android:src="@drawable/ic_done"
app:layout_anchor="@id/viewA"
app:layout_anchorGravity="bottom|right|end"/>
</android.support.design.widget.CoordinatorLayout>
Look at stat
for checking if the directory exists,
And mkdir
, to create a directory.
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
struct stat st = {0};
if (stat("/some/directory", &st) == -1) {
mkdir("/some/directory", 0700);
}
You can see the manual of these functions with the man 2 stat
and man 2 mkdir
commands.
1. Why does the getOne(id) method fail?
See this section in the docs. You overriding the already in place transaction might be causing the issue. However, without more info this one is difficult to answer.
2. When I should use the getOne(id) method?
Without digging into the internals of Spring Data JPA, the difference seems to be in the mechanism used to retrieve the entity.
If you look at the JavaDoc for getOne(ID)
under See Also:
See Also:
EntityManager.getReference(Class, Object)
it seems that this method just delegates to the JPA entity manager's implementation.
However, the docs for findOne(ID)
do not mention this.
The clue is also in the names of the repositories.
JpaRepository
is JPA specific and therefore can delegate calls to the entity manager if so needed.
CrudRepository
is agnostic of the persistence technology used. Look here. It's used as a marker interface for multiple persistence technologies like JPA, Neo4J etc.
So there's not really a 'difference' in the two methods for your use cases, it's just that findOne(ID)
is more generic than the more specialised getOne(ID)
. Which one you use is up to you and your project but I would personally stick to the findOne(ID)
as it makes your code less implementation specific and opens the doors to move to things like MongoDB etc. in the future without too much refactoring :)
I don't think there is any easy way to get only HTTP headers. You have to iterate through request.META dict to get what all you need.
django-debug-toolbar takes the same approach to show header information. Have a look at this file responsible for retrieving header information.
In Spring Boot 2, the easiest way is to declare in your application.properties:
spring.jackson.serialization.WRITE_ENUMS_USING_TO_STRING=true
spring.jackson.deserialization.READ_ENUMS_USING_TO_STRING=true
and define the toString() method of your enums.
If you want to modify the original array instead of returning a new array, use .push()
...
array1.push.apply(array1, array2);
array1.push.apply(array1, array3);
I used .apply
to push the individual members of arrays 2
and 3
at once.
or...
array1.push.apply(array1, array2.concat(array3));
To deal with large arrays, you can do this in batches.
for (var n = 0, to_add = array2.concat(array3); n < to_add.length; n+=300) {
array1.push.apply(array1, to_add.slice(n, n+300));
}
If you do this a lot, create a method or function to handle it.
var push_apply = Function.apply.bind([].push);
var slice_call = Function.call.bind([].slice);
Object.defineProperty(Array.prototype, "pushArrayMembers", {
value: function() {
for (var i = 0; i < arguments.length; i++) {
var to_add = arguments[i];
for (var n = 0; n < to_add.length; n+=300) {
push_apply(this, slice_call(to_add, n, n+300));
}
}
}
});
and use it like this:
array1.pushArrayMembers(array2, array3);
var push_apply = Function.apply.bind([].push);_x000D_
var slice_call = Function.call.bind([].slice);_x000D_
_x000D_
Object.defineProperty(Array.prototype, "pushArrayMembers", {_x000D_
value: function() {_x000D_
for (var i = 0; i < arguments.length; i++) {_x000D_
var to_add = arguments[i];_x000D_
for (var n = 0; n < to_add.length; n+=300) {_x000D_
push_apply(this, slice_call(to_add, n, n+300));_x000D_
}_x000D_
}_x000D_
}_x000D_
});_x000D_
_x000D_
var array1 = ['a','b','c'];_x000D_
var array2 = ['d','e','f'];_x000D_
var array3 = ['g','h','i'];_x000D_
_x000D_
array1.pushArrayMembers(array2, array3);_x000D_
_x000D_
document.body.textContent = JSON.stringify(array1, null, 4);
_x000D_
There are couple of different solutions to achieve this:
1 - Native javascript for-in loop:
const result = {};
let key;
for (key in obj1) {
if(obj1.hasOwnProperty(key)){
result[key] = obj1[key];
}
}
for (key in obj2) {
if(obj2.hasOwnProperty(key)){
result[key] = obj2[key];
}
}
2 - Object.keys()
:
const result = {};
Object.keys(obj1)
.forEach(key => result[key] = obj1[key]);
Object.keys(obj2)
.forEach(key => result[key] = obj2[key]);
3 - Object.assign()
:
(Browser compatibility: Chrome: 45, Firefox (Gecko): 34, Internet Explorer: No support, Edge: (Yes), Opera: 32, Safari: 9)
const result = Object.assign({}, obj1, obj2);
4 - Spread Operator:
Standardised from ECMAScript 2015 (6th Edition, ECMA-262):
Defined in several sections of the specification: Array Initializer, Argument Lists
Using this new syntax you could join/merge different objects into one object like this:
const result = {
...obj1,
...obj2,
};
5 - jQuery.extend(target, obj1, obj2)
:
Merge the contents of two or more objects together into the first object.
const target = {};
$.extend(target, obj1, obj2);
6 - jQuery.extend(true, target, obj1, obj2)
:
Run a deep merge of the contents of two or more objects together into the target. Passing false
for the first argument is not supported.
const target = {};
$.extend(true, target, obj1, obj2);
7 - Lodash _.assignIn(object, [sources])
: also named as _.extend
:
const result = {};
_.assignIn(result, obj1, obj2);
8 - Lodash _.merge(object, [sources])
:
const result = _.merge(obj1, obj2);
There are a couple of important differences between lodash's merge function and Object.assign
:
1- Although they both receive any number of objects but lodash's merge apply a deep merge of those objects but Object.assign
only merges the first level. For instance:
_.isEqual(_.merge({
x: {
y: { key1: 'value1' },
},
}, {
x: {
y: { key2: 'value2' },
},
}), {
x: {
y: {
key1: 'value1',
key2: 'value2',
},
},
}); // true
BUT:
const result = Object.assign({
x: {
y: { key1: 'value1' },
},
}, {
x: {
y: { key2: 'value2' },
},
});
_.isEqual(result, {
x: {
y: {
key1: 'value1',
key2: 'value2',
},
},
}); // false
// AND
_.isEqual(result, {
x: {
y: {
key2: 'value2',
},
},
}); // true
2- Another difference has to do with how Object.assign
and _.merge
interpret the undefined
value:
_.isEqual(_.merge({x: 1}, {x: undefined}), { x: 1 }) // false
BUT:
_.isEqual(Object.assign({x: 1}, {x: undefined}), { x: undefined })// true
Update 1:
When using for in
loop in JavaScript, we should be aware of our environment specially the possible prototype changes in the JavaScript types. For instance some of the older JavaScript libraries add new stuff to Array.prototype
or even Object.prototype
.
To safeguard your iterations over from the added stuff we could use object.hasOwnProperty(key)
to mke sure the key is actually part of the object you are iterating over.
Update 2:
I updated my answer and added the solution number 4, which is a new JavaScript feature but not completely standardized yet. I am using it with Babeljs which is a compiler for writing next generation JavaScript.
Update 3:
I added the difference between Object.assign
and _.merge
.
Why are you grouping by? Do you mean order by?
SELECT player_name, player_salary, player_salary * 1.1 AS NewSalary
FROM players
ORDER BY player_salary, player_name;
Use join()
and the separator.
Working example
var arr = ['a', 'b', 'c', 1, 2, '3'];_x000D_
_x000D_
// using toString method_x000D_
var rslt = arr.toString(); _x000D_
console.log(rslt);_x000D_
_x000D_
// using join method. With a separator '-'_x000D_
rslt = arr.join('-');_x000D_
console.log(rslt);_x000D_
_x000D_
// using join method. without a separator _x000D_
rslt = arr.join('');_x000D_
console.log(rslt);
_x000D_
<p style="margin-left:5em;">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut lacinia vestibulum quam sit amet aliquet. Phasellus tempor nisi eget tellus venenatis tempus. Aliquam dapibus porttitor convallis. Praesent pretium luctus orci, quis ullamcorper lacus lacinia a. Integer eget molestie purus. Vestibulum porta mollis tempus. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. </p>
That'll do it, there's a few improvements obviously, but that's the basics. And I use 'em'
as the measurement, you may want to use other units, like 'px'
.
EDIT: What they're describing above is a way of associating groups of styles, or classes, with elements on a web page. You can implement that in a few ways, here's one which may suit you:
In your HTML page, containing the <p>
tagged content from your DB add in a new 'style' node and wrap the styles you want to declare in a class like so:
<head>
<style type="text/css">
p { margin-left:5em; /* Or another measurement unit, like px */ }
</style>
</head>
<body>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut lacinia vestibulum quam sit amet aliquet.</p>
</body>
So above, all <p>
elements in your document will have that style rule applied. Perhaps you are pumping your paragraph content into a container of some sort? Try this:
<head>
<style type="text/css">
.container p { margin-left:5em; /* Or another measurement unit, like px */ }
</style>
</head>
<body>
<div class="container">
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut lacinia vestibulum quam sit amet aliquet.</p>
</div>
<p>Vestibulum porta mollis tempus. Class aptent taciti sociosqu ad litora torquent per conubia nostra.</p>
</body>
In the example above, only the <p>
element inside the div, whose class name is 'container', will have the styles applied - and not the <p>
element outside the container.
In addition to the above, you can collect your styles together and remove the style element from the <head>
tag, replacing it with a <link>
tag, which points to an external CSS file. This external file is where you'd now put your <p>
tag styles. This concept is known as 'seperating content from style' and is considered good practice, and is also an extendible way to create styles, and can help with low maintenance.
var code = myString.Split(new [] {"code"}, StringSplitOptions.None)[1];
// code = " : -1"
You can tweak the string to split by - if you use "code : "
, the second member of the returned array ([1]
) will contain "-1"
, using your example.
If you use Grunt you can add a task in order to remove/comment the console.log statements. Therefore the console.log are no longer called.
Firstly It tries insert. If there is a conflict on url
column then it updates content and last_analyzed fields. If updates are rare this might be better option.
INSERT INTO URLs (url, content, last_analyzed)
VALUES
(
%(url)s,
%(content)s,
NOW()
)
ON CONFLICT (url)
DO
UPDATE
SET content=%(content)s, last_analyzed = NOW();
Today, with jQuery, I do this:
$("#foo").change(function(){
var foo = $("#foo option:selected").text();
});
\#foo
is the drop-down box id.
Read more.
The problem here is that you have two different languages that solve two different problems... its like comparing C++ with assembler.
Python is for rapid application development and for when performance is a minimal concern.
C++ is not for rapid application development and inherits a legacy of speed from C - for low level programming.
You can use the entry set and iterate over the entries which allows you to access both, key and value, directly.
for (Entry<String, ArrayList<String>> entry : test1.entrySet() {
System.out.println(entry.getKey() + "/" + entry.getValue());
}
I tried this but get only returns string
Why do you think so? The method get
returns the type E
for which the generic type parameter was chosen, in your case ArrayList<String>
.
I like sed.
substr="foo"
nonsub="$(echo "$string" | sed "s/$substr//")"
hassub=0 ; [ "$string" != "$nonsub" ] && hassub=1
Edit, Logic:
Use sed to remove instance of substring from string
If new string differs from old string, substring exists
My approach would not be to start by writing your own API. Life's too short, and there are more pressing problems to solve. In this situation, I typically:
Start with something someone has already written. Odds are, it'll do what you want. You can always write your own later, if necessary. OpenCSV is as good a starting point as any.
subinacl.exe
from Microsoft:subinacl.exe
is in C:\Program Files (x86)\Windows Resource Kits\Tools\
).cd C:\Program Files (x86)\Windows Resource Kits\Tools\
subinacl /SERVICE \\MachineName\bst /GRANT=domainname.com\username=F
orsubinacl /SERVICE \\MachineName\bst /GRANT=username=F
How do I add a junit 4 dependency correctly?
Assuming you're resolving against a standard Maven (or equivalent) repo:
dependencies {
...
testCompile "junit:junit:4.11" // Or whatever version
}
Run those tests in the folders of tests/model?
You define your test source set the same way:
sourceSets {
...
test {
java {
srcDirs = ["test/model"] // Note @Peter's comment below
}
}
}
Then invoke the tests as:
./gradlew test
EDIT: If you are using JUnit 5 instead, there are more steps to complete, you should follow this tutorial.
String newstring = "";
String target2 = "fooBar";
newstring = target2.substring("foo".length()).trim();
logger.debug("target2: {}",newstring);
// output: target2: Bar
String target3 = "FooBar";
newstring = target3.substring("foo".length()).trim();
logger.debug("target3: {}",newstring);
// output: target3: Bar
By default, Log4j
logs to standard output and that means you should be able to see log messages on your Eclipse's console view. To log to a file you need to use a FileAppender
explicitly by defining it in a log4j.properties
file in your classpath.
Create the following log4j.properties
file in your classpath. This allows you to log your message to both a file as well as your console.
log4j.rootLogger=debug, stdout, file
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=example.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%p %t %c - %m%n
Note: The above creates an example.log in your current working directory (i.e. Eclipse's project directory) so that the same log4j.properties could work with different projects without overwriting each other's logs.
References:
Apache log4j 1.2 - Short introduction to log4j
You do not need to throw a checked exception. This is a bug within the control of the program, so you want to throw an unchecked exception. Use one of the unchecked exceptions already provided by the Java language, such as IllegalArgumentException
, IllegalStateException
or NullPointerException
.
You may also want to get rid of the setter. You've already provided a way to initiate age
through the constructor. Does it need to be updated once instantiated? If not, skip the setter. A good rule, do not make things more public than necessary. Start with private or default, and secure your data with final
. Now everyone knows that Person
has been constructed properly, and is immutable. It can be used with confidence.
Most likely this is what you really need:
class Person {
private final int age;
Person(int age) {
if (age < 0)
throw new IllegalArgumentException("age less than zero: " + age);
this.age = age;
}
// setter removed
I got this error while using malloc() to allocate some memory to a struct * after spending some this debugging the code, I finally used free() function to free the allocated memory and subsequently the error message gone :)
You can try that command
git clean -df
Has anyone considered contenteditable? No messing around with scrolling,a nd the only JS I like about it is if you plan on saving the data on blur... and apparently, it's compatible on all of the popular browsers : http://caniuse.com/#feat=contenteditable
Just style it to look like a text box, and it autosizes... Make its min-height the preferred text height and have at it.
What's cool about this approach is that you can save and tags on some of the browsers.
http://jsfiddle.net/gbutiri/v31o8xfo/
var _auto_value = '';
$(document).on('blur', '.autosave', function(e) {
var $this = $(this);
if ($this.text().trim() == '') {
$this.html('');
}
// The text is here. Do whatever you want with it.
$this.addClass('saving');
if (_auto_value !== $this.html() || $this.hasClass('error')) {
// below code is for example only.
$.ajax({
url: '/echo/json/?action=xyz_abc',
data: 'data=' + $this.html(),
type: 'post',
datatype: 'json',
success: function(d) {
console.log(d);
$this.removeClass('saving error').addClass('saved');
var k = setTimeout(function() {
$this.removeClass('saved error')
}, 500);
},
error: function() {
$this.removeClass('saving').addClass('error');
}
});
} else {
$this.removeClass('saving');
}
}).on('focus mouseup', '.autosave', function() {
var $this = $(this);
if ($this.text().trim() == '') {
$this.html('');
}
_auto_value = $this.html();
}).on('keyup', '.autosave', function(e) {
var $this = $(this);
if ($this.text().trim() == '') {
$this.html('');
}
});
_x000D_
body {
background: #3A3E3F;
font-family: Arial;
}
label {
font-size: 11px;
color: #ddd;
}
.autoheight {
min-height: 16px;
font-size: 16px;
margin: 0;
padding: 10px;
font-family: Arial;
line-height: 20px;
box-sizing: border-box;
-o-box-sizing: border-box;
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
overflow: hidden;
display: block;
resize: none;
border: 0;
outline: none;
min-width: 200px;
background: #ddd;
max-height: 400px;
overflow: auto;
}
.autoheight:hover {
background: #eee;
}
.autoheight:focus {
background: #fff;
}
.autosave {
-webkit-transition: all .2s;
-moz-transition: all .2s;
transition: all .2s;
position: relative;
float: none;
}
.autoheight * {
margin: 0;
padding: 0;
}
.autosave.saving {
background: #ff9;
}
.autosave.saved {
background: #9f9;
}
.autosave.error {
background: #f99;
}
.autosave:hover {
background: #eee;
}
.autosave:focus {
background: #fff;
}
[contenteditable=true]:empty:before {
content: attr(placeholder);
color: #999;
position: relative;
top: 0px;
/*
For IE only, do this:
position: absolute;
top: 10px;
*/
cursor: text;
}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label>Your Name</label>
<div class="autoheight autosave contenteditable" contenteditable="true" placeholder="Your Name"></div>
_x000D_
Month
enumYou could use the Month
enum. This enum is defined as part of the new java.time framework built into Java 8 and later.
int monthNumber = 10;
Month.of(monthNumber).name();
The output would be:
OCTOBER
Localize to a language beyond English by calling getDisplayName
on the same Enum.
String output = Month.OCTOBER.getDisplayName ( TextStyle.FULL , Locale.CANADA_FRENCH );
output:
octobre
Manifest.MF contains information about the files contained in the JAR file.
Whenever a JAR file is created a default manifest.mf file is created inside META-INF folder and it contains the default entries like this:
Manifest-Version: 1.0
Created-By: 1.7.0_06 (Oracle Corporation)
These are entries as “header:value” pairs. The first one specifies the manifest version and second one specifies the JDK version with which the JAR file is created.
Main-Class header: When a JAR file is used to bundle an application in a package, we need to specify the class serving an entry point of the application. We provide this information using ‘Main-Class’ header of the manifest file,
Main-Class: {fully qualified classname}
The ‘Main-Class’ value here is the class having main method. After specifying this entry we can execute the JAR file to run the application.
Class-Path header: Most of the times we need to access the other JAR files from the classes packaged inside application’s JAR file. This can be done by providing their fully qualified paths in the manifest file using ‘Class-Path’ header,
Class-Path: {jar1-name jar2-name directory-name/jar3-name}
This header can be used to specify the external JAR files on the same local network and not inside the current JAR.
Package version related headers: When the JAR file is used for package versioning the following headers are used as specified by the Java language specification:
Headers in a manifest
Header | Definition
-------------------------------------------------------------------
Name | The name of the specification.
Specification-Title | The title of the specification.
Specification-Version | The version of the specification.
Specification-Vendor | The vendor of the specification.
Implementation-Title | The title of the implementation.
Implementation-Version | The build number of the implementation.
Implementation-Vendor | The vendor of the implementation.
Package sealing related headers:
We can also specify if any particular packages inside a JAR file should be sealed meaning all the classes defined in that package must be archived in the same JAR file. This can be specified with the help of ‘Sealed’ header,
Name: {package/some-package/} Sealed:true
Here, the package name must end with ‘/’.
Enhancing security with manifest files:
We can use manifest files entries to ensure the security of the web application or applet it packages with the different attributes as ‘Permissions’, ‘Codebae’, ‘Application-Name’, ‘Trusted-Only’ and many more.
META-INF folder:
This folder is where the manifest file resides. Also, it can contain more files containing meta data about the application. For example, in an EJB module JAR file, this folder contains the EJB deployment descriptor for the EJB module along with the manifest file for the JAR. Also, it contains the xml file containing mapping of an abstract EJB references to concrete container resources of the application server on which it will be run.
Reference:
https://docs.oracle.com/javase/tutorial/deployment/jar/manifestindex.html
You can use
$window.scrollTo(x, y);
where x
is the pixel along the horizontal axis and y
is the pixel along the vertical axis.
Scroll to top
$window.scrollTo(0, 0);
Focus on element
$window.scrollTo(0, angular.element('put here your element').offsetTop);
Update:
Also you can use $anchorScroll