Replacing image: ${DOCKER_REGISTRY}notificationsapi
with image:notificationsapi
or image: ${docker_registry}notificationsapi
in docker-compose.yml did solves the issue
file with error
version: '3.4'
services:
notifications.api:
image: ${DOCKER_REGISTRY}notificationsapi
build:
context: .
dockerfile: ../Notifications.Api/Dockerfile
file without error
version: '3.4'
services:
notifications.api:
image: ${docker_registry}notificationsapi
build:
context: .
dockerfile: ../Notifications.Api/Dockerfile
So i think error was due to non lower case letters it had
You can check for port numbers with these command examples on wireshark:-
tcp.port==80
tcp.port==14220
I don't think adb pull handles wildcards for multiple files. I ran into the same problem and did this by moving the files to a folder and then pulling the folder.
I found a link doing the same thing. Try following these steps.
Yes, you need to use global foo
if you are going to write to it.
foo = []
def bar():
global foo
...
foo = [1]
getdate()
or getutcdate()
.
I had an onpremises HA installation, a master and a worker stopped working returning a NOTReady status. Checking the kubelet logs on the nodes I found out this problem:
failed to run Kubelet: Running with swap on is not supported, please disable swap! or set --fail-swap-on flag to false
Disabling swap on nodes with
swapoff -a
and restarting the kubelet
systemctl restart kubelet
did the work.
If you wanted a looser criterion for rejection, for example, to reject empty strings as well as nil, you could use:
[1, nil, 3, 0, ''].reject(&:blank?)
=> [1, 3, 0]
If you wanted to go further and reject zero values (or apply more complex logic to the process), you could pass a block to reject:
[1, nil, 3, 0, ''].reject do |value| value.blank? || value==0 end
=> [1, 3]
[1, nil, 3, 0, '', 1000].reject do |value| value.blank? || value==0 || value>10 end
=> [1, 3]
In my case addInterceptor()
didn't work to add HTTP headers to my request, I had to use addNetworkInterceptor()
. Code is as follows:
OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
httpClient.addNetworkInterceptor(new AddHeaderInterceptor());
And the interceptor code:
public class AddHeaderInterceptor implements Interceptor {
@Override
public Response intercept(Chain chain) throws IOException {
Request.Builder builder = chain.request().newBuilder();
builder.addHeader("Authorization", "MyauthHeaderContent");
return chain.proceed(builder.build());
}
}
This and more examples on this gist
why not both to be sure?
if(opener.document){
$("#testdiv",opener.document).doStuff();
}else{
$("#testdiv",window.opener).doStuff();
}
You are missing, that \ is the escape character.
Look here: http://docs.python.org/reference/lexical_analysis.html at 2.4.1 "Escape Sequence"
Most importantly \n is a newline character. And \\ is an escaped escape character :D
>>> a = 'a\\\\nb'
>>> a
'a\\\\nb'
>>> print a
a\\nb
>>> a.replace('\\\\', '\\')
'a\\nb'
>>> print a.replace('\\\\', '\\')
a\nb
Below code worked fine for me. Please help me if tuning can be done. This gets all the keys even from the nested JSON objects.
public static void main(String args[]) {
String s = ""; // Sample JSON to be parsed
JSONParser parser = new JSONParser();
JSONObject obj = null;
try {
obj = (JSONObject) parser.parse(s);
@SuppressWarnings("unchecked")
List<String> parameterKeys = new ArrayList<String>(obj.keySet());
List<String> result = null;
List<String> keys = new ArrayList<>();
for (String str : parameterKeys) {
keys.add(str);
result = this.addNestedKeys(obj, keys, str);
}
System.out.println(result.toString());
} catch (ParseException e) {
e.printStackTrace();
}
}
public static List<String> addNestedKeys(JSONObject obj, List<String> keys, String key) {
if (isNestedJsonAnArray(obj.get(key))) {
JSONArray array = (JSONArray) obj.get(key);
for (int i = 0; i < array.length(); i++) {
try {
JSONObject arrayObj = (JSONObject) array.get(i);
List<String> list = new ArrayList<>(arrayObj.keySet());
for (String s : list) {
putNestedKeysToList(keys, key, s);
addNestedKeys(arrayObj, keys, s);
}
} catch (JSONException e) {
LOG.error("", e);
}
}
} else if (isNestedJsonAnObject(obj.get(key))) {
JSONObject arrayObj = (JSONObject) obj.get(key);
List<String> nestedKeys = new ArrayList<>(arrayObj.keySet());
for (String s : nestedKeys) {
putNestedKeysToList(keys, key, s);
addNestedKeys(arrayObj, keys, s);
}
}
return keys;
}
private static void putNestedKeysToList(List<String> keys, String key, String s) {
if (!keys.contains(key + Constants.JSON_KEY_SPLITTER + s)) {
keys.add(key + Constants.JSON_KEY_SPLITTER + s);
}
}
private static boolean isNestedJsonAnObject(Object object) {
boolean bool = false;
if (object instanceof JSONObject) {
bool = true;
}
return bool;
}
private static boolean isNestedJsonAnArray(Object object) {
boolean bool = false;
if (object instanceof JSONArray) {
bool = true;
}
return bool;
}
.aspx
uses a full lifecycle (Init
, Load
, PreRender
) and can respond to button clicks etc.
An .ashx
has just a single ProcessRequest
method.
This works:
function getBreakText($t) {
return strtr($t, array('\\r\\n' => '<br>', '\\r' => '<br>', '\\n' => '<br>'));
}
For small algorithms you can use the module timeit from python documentation:
def test():
"Stupid test function"
L = []
for i in range(100):
L.append(i)
if __name__=='__main__':
from timeit import Timer
t = Timer("test()", "from __main__ import test")
print t.timeit()
Less accurately but still valid you can use module time like this:
from time import time
t0 = time()
call_mifuntion_vers_1()
t1 = time()
call_mifunction_vers_2()
t2 = time()
print 'function vers1 takes %f' %(t1-t0)
print 'function vers2 takes %f' %(t2-t1)
In case somebody needs to append the output and not overriding, it is possible to use "-a" or "--append" option of "tee" command :
ls 2>&1 | tee -a /tmp/ls.txt
ls 2>&1 | tee --append /tmp/ls.txt
Projection: what ever typed in select clause i.e, 'column list' or '*' or 'expressions' that becomes under projection.
*selection:*what type of conditions we are applying on that columns i.e, getting the records that comes under selection.
For example:
SELECT empno,ename,dno,job from Emp
WHERE job='CLERK';
in the above query the columns "empno,ename,dno,job" those comes under projection, "where job='clerk'" comes under selection
VisJS supports this with its Arrows example, that supports draggable elements.
It also supports editable connections, with its Interaction Events example.
@HostListener
is a decorator for the callback/event handler method, so remove the ;
at the end of this line:
@HostListener('click', ['$event.target']);
Here's a working plunker that I generated by copying the code from the API docs, but I put the onClick()
method on the same line for clarity:
import {Component, HostListener, Directive} from 'angular2/core';
@Directive({selector: 'button[counting]'})
class CountClicks {
numberOfClicks = 0;
@HostListener('click', ['$event.target']) onClick(btn) {
console.log("button", btn, "number of clicks:", this.numberOfClicks++);
}
}
@Component({
selector: 'my-app',
template: `<button counting>Increment</button>`,
directives: [CountClicks]
})
export class AppComponent {
constructor() { console.clear(); }
}
Host binding can also be used to listen to global events:
To listen to global events, a target must be added to the event name. The target can be window, document or body (reference)
@HostListener('document:keyup', ['$event'])
handleKeyboardEvent(kbdEvent: KeyboardEvent) { ... }
Before creating a new branch always the best practice is to have the latest of repo in your local machine. Follow these steps for error free branch creation.
1. $ git branch (check which branches exist and which one is currently active (prefixed with *). This helps you avoid creating duplicate/confusing branch name)
2. $ git branch <new_branch> (creates new branch)
3. $ git checkout new_branch
4. $ git add . (After making changes in the current branch)
5. $ git commit -m "type commit msg here"
6. $ git checkout master (switch to master branch so that merging with new_branch can be done)
7. $ git merge new_branch (starts merging)
8. $ git push origin master (push to the remote server)
I referred this blog and I found it to be a cleaner approach.
I was able to get this to work with ConfigParser
, no one showed any examples on how to do this, so here is a simple python reader of a property file and example of the property file. Note that the extension is still .properties
, but I had to add a section header similar to what you see in .ini files... a bit of a bastardization, but it works.
The python file: PythonPropertyReader.py
#!/usr/bin/python
import ConfigParser
config = ConfigParser.RawConfigParser()
config.read('ConfigFile.properties')
print config.get('DatabaseSection', 'database.dbname');
The property file: ConfigFile.properties
[DatabaseSection]
database.dbname=unitTest
database.user=root
database.password=
For more functionality, read: https://docs.python.org/2/library/configparser.html
I see this question is already answered, but wanted to offer an alternative in case someone else finds this later.
Depending on the required delimiter, it is possible to do this without writing any code. The original question does not give details on the desired output type but here is an alternative:
The easiest option is to save the file as a "Formatted Text (Space Delimited)" type. The VBA code line would look similar to this:
ActiveWorkbook.SaveAs FileName:=myFileName, FileFormat:=xlTextPrinter, CreateBackup:=False
In Excel 2007, this will annoyingly put a .prn file extension on the end of the filename, but it can be changed to .txt by renaming manually.
In Excel 2010, you can specify any file extension you want in the Save As dialog.
One important thing to note: the number of delimiters used in the text file is related to the width of the Excel column.
Observe:
Becomes:
The -match
operator tests a regex, combine it with the magic variable $matches
to get your result
PS C:\> $x = "----start----Hello World----end----"
PS C:\> $x -match "----start----(?<content>.*)----end----"
True
PS C:\> $matches['content']
Hello World
Whenever in doubt about regex-y things, check out this site: http://www.regular-expressions.info
in Firefox 39 I've found that setting a border to the select element will render the arrow as (2). No border set, will render the arrow as (1). I think it's a bug.
If you're using php7 and you want to handle only undefined errors this is the cleanest IMHO
$array = [1,2,3,4];
foreach ( $array ?? [] as $item ) {
echo $item;
}
I got this error
ERROR 1064 (42000)
because the downloaded .sql.tar file was somehow corrupted. Downloading and extracting it again solved the issue.
Say you want to fill with number 13.
int[] myarr = Enumerable.Range(0, 10).Select(n => 13).ToArray();
or
List<int> myarr = Enumerable.Range(0,10).Select(n => 13).ToList();
if you prefer a list.
You need to achieve that using CSS
http://binnyva.blogspot.com/2006/01/icons-for-select-menu-options-in.html
Simplest way, get a launchpad account and use: ssh-import-id
This is what worked for me on iOS 6 (very slight adaptation of rmarscher's answer):
<script>
(function(document,navigator,standalone) {
if (standalone in navigator && navigator[standalone]) {
var curnode,location=document.location,stop=/^(a|html)$/i;
document.addEventListener("click", function(e) {
curnode=e.target;
while (!stop.test(curnode.nodeName)) {
curnode=curnode.parentNode;
}
if ("href" in curnode && (curnode.href.indexOf("http") || ~curnode.href.indexOf(location.host)) && curnode.target == false) {
e.preventDefault();
location.href=curnode.href
}
},false);
}
})(document,window.navigator,"standalone")
</script>
This worked for me (I added an "if sheet visible" because in my case I wanted to skip hidden sheets)
Sub Create_new_file()
Application.DisplayAlerts = False
Dim wb As Workbook
Dim wbNew As Workbook
Dim sh As Worksheet
Dim shNew As Worksheet
Dim pname, parea As String
Set wb = ThisWorkbook
Workbooks.Add
Set wbNew = ActiveWorkbook
For Each sh In wb.Worksheets
pname = sh.Name
If sh.Visible = True Then
sh.Copy After:=wbNew.Sheets(Sheets.Count)
wbNew.Sheets(Sheets.Count).Cells.ClearContents
wbNew.Sheets(Sheets.Count).Cells.ClearFormats
wb.Sheets(sh.Name).Activate
Range(sh.PageSetup.PrintArea).Select
Selection.Copy
wbNew.Sheets(pname).Activate
Range("A1").Select
With Selection
.PasteSpecial (xlValues)
.PasteSpecial (xlFormats)
.PasteSpecial (xlPasteColumnWidths)
End With
ActiveSheet.Name = pname
End If
Next
wbNew.Sheets("Hoja1").Delete
Application.DisplayAlerts = True
End Sub
If you are trying to trigger an event on the anchor, then the code you have will work.
$(document).ready(function() {
$('a#titleee').trigger('click');
});
OR
$(document).ready(function() {
$('#titleee li a[href="#inline"]').click();
});
OR
$(document).ready(function() {
$('ul#titleee li a[href="#inline"]').click();
});
You can actually disable all database constraints in a single SQL command and the re-enable them calling another single command. See:
I am currently working with SQL Server 2005 but I am almost sure that this approach worked with SQL 2000 as well
I came across this question when I was trying to find multiple filenames that I could not combine into a regular expression as described in @Chris J's answer, here is what worked for me
find . -name one.pdf -o -name two.txt -o -name anotherone.jpg
-o
or -or
is logical OR. See Finding Files on Gnu.org for more information.
I was running this on CygWin.
Inspired by @jirikuchta 's answer, I solved this problem by adding this bit of CSS:
#myTextArea:active {
font-size: 16px; /* `16px` is safer I assume, although `1rem` works too */
}
No JS, and I don't notice any flash or anything.
It's worth noting that a viewport
with maximum-scale=1
also works, but not when the page is loaded as an iframe, or if you have some other script modifying the viewport
, etc.
"In the default mode, Dot (.) matches any character except a newline. If the DOTALL flag has been specified, this matches any character including a newline." (python Doc)
So, if you want to evaluate dot literaly, I think you should put it in square brackets:
>>> p = re.compile(r'\b(\w+[.]\w+)')
>>> resp = p.search("blah blah blah [email protected] blah blah")
>>> resp.group()
'test.this'
plundberg: The "disconnect" button is only available for the TFS provider starting in VS 2008. Even then, I'm not sure if it's officially supported. The recommended way to use the Go Offline feature is to [re]open the solution.
Martin Pritchard: if you get stuck mid-operation, you can force VS to timeout by pulling the network plug (literally) or running ipconfig /release.
Once you're marked offline, here's a step by step guide to working in that mode: http://teamfoundation.blogspot.com/2007/12/offline-and-back-again-in-vs2008.html
More detailed info on tweaking the behind-the-scenes behavior: http://blogs.msdn.com/benryan/archive/2007/12/12/when-and-how-does-my-solution-go-offline.aspx http://blogs.msdn.com/benryan/archive/2007/12/12/how-to-make-tfs-offline-strictly-solution-based.aspx
If you want to use a vanilla JS, you can do it similarly to a @zahid-ullah, but avoiding a loop:
var values = [].filter.call(document.getElementsByName('fruits[]'), function(c) {
return c.checked;
}).map(function(c) {
return c.value;
});
The same code in ES6 looks a way better:
var values = [].filter.call(document.getElementsByName('fruits[]'), (c) => c.checked).map(c => c.value);
window.serialize = function serialize() {_x000D_
var values = [].filter.call(document.getElementsByName('fruits[]'), function(c) {_x000D_
return c.checked;_x000D_
}).map(function(c) {_x000D_
return c.value;_x000D_
});_x000D_
document.getElementById('serialized').innerText = JSON.stringify(values);_x000D_
}
_x000D_
label {_x000D_
display: block;_x000D_
}
_x000D_
<label>_x000D_
<input type="checkbox" name="fruits[]" value="banana">Banana_x000D_
</label>_x000D_
<label>_x000D_
<input type="checkbox" name="fruits[]" value="apple">Apple_x000D_
</label>_x000D_
<label>_x000D_
<input type="checkbox" name="fruits[]" value="peach">Peach_x000D_
</label>_x000D_
<label>_x000D_
<input type="checkbox" name="fruits[]" value="orange">Orange_x000D_
</label>_x000D_
<label>_x000D_
<input type="checkbox" name="fruits[]" value="strawberry">Strawberry_x000D_
</label>_x000D_
<button onclick="serialize()">Serialize_x000D_
</button>_x000D_
<div id="serialized">_x000D_
</div>
_x000D_
I'm not sure why that isn't working, It works fine on my test. But here is an alternative technique that might help.
Instead of calling the method in the AJAX url, just use the page .aspx url, and add the method as a parameter in the data object. Then when it calls page_load, your data will be in the Request.Form variable.
jQuery
jQuery.ajax({
url: 'AddToCart.aspx',
type: "POST",
data: {
method: 'AddTo_Cart', quantity: total_qty, itemId: itemId
},
dataType: "json",
beforeSend: function () {
alert("Start!!! ");
},
success: function (data) {
alert("a");
},
failure: function (msg) { alert("Sorry!!! "); }
});
C# Page Load:
if (!Page.IsPostBack)
{
if (Request.Form["method"] == "AddTo_Cart")
{
int q, id;
int.TryParse(Request.Form["quantity"], out q);
int.TryParse(Request.Form["itemId"], out id);
AddTo_Cart(q,id);
}
}
The best
and the rest
On INNER JOIN
s they are interchangeable, and the optimizer will rearrange them at will.
On OUTER JOIN
s, they are not necessarily interchangeable, depending on which side of the join they depend on.
I put them in either place depending on the readability.
I found that in my code when I used a ration or percentage for line-height line-height;1.5;
My page would scale in such a way that lower case font and upper case font would take up different page heights (I.E. All caps took more room than all lower). Normally I think this looks better, but I had to go to a fixed height line-height:24px;
so that I could predict exactly how many pixels each page would take with a given number of lines.
It turns out there's more than one problem with that code. A fragment cannot be declared that way, inside the same java file as the activity but not as a public inner class. The framework expects the fragment's constructor (with no parameters) to be public and visible. Moving the fragment into the Activity as an inner class, or creating a new java file for the fragment fixes that.
The second issue is that when you're adding a fragment this way, you must pass a reference to the fragment's containing view, and that view must have a custom id. Using the default id will crash the app. Here's the updated code:
public class DebugExampleTwo extends Activity {
private static final int CONTENT_VIEW_ID = 10101010;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FrameLayout frame = new FrameLayout(this);
frame.setId(CONTENT_VIEW_ID);
setContentView(frame, new LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
if (savedInstanceState == null) {
Fragment newFragment = new DebugExampleTwoFragment();
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.add(CONTENT_VIEW_ID, newFragment).commit();
}
}
public static class DebugExampleTwoFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
EditText v = new EditText(getActivity());
v.setText("Hello Fragment!");
return v;
}
}
}
If, like me, you are doing this for a column which then goes through COALESCE / array_to_json / ARRAY_AGG / row_to_json (PostgreSQL) and want to keep the capitals in the column name, double quote the column name, like so:
SELECT a.price AS "myFirstPrice", b.price AS "mySecondPrice"
Without the quotes (and when using those functions), my column names in camelCase would lose the capital letters.
You can also put multi-line comments using:
: '
comment1comment1
comment2comment2
comment3comment3
comment4comment4
'
As per the Bash Reference for Bourne Shell builtins
: (a colon)
: [arguments]
Do nothing beyond expanding arguments and performing redirections. The return status is zero.
Thanks to Ikram for pointing this out in the post Shell script put multiple line comment
WITH q AS
(
SELECT TOP 1 *
FROM mytable
/* You may want to add ORDER BY here */
)
DELETE
FROM q
Note that
DELETE TOP (1)
FROM mytable
will also work, but, as stated in the documentation:
The rows referenced in the
TOP
expression used withINSERT
,UPDATE
, orDELETE
are not arranged in any order.
Therefore, it's better to use WITH
and an ORDER BY
clause, which will let you specify more exactly which row you consider to be the first.
You can use the CURSOR_STATUS function to determine its state.
IF CURSOR_STATUS('global','myCursor')>=-1
BEGIN
DEALLOCATE myCursor
END
To achieve this you would do something like:
n=L[0][0]
m=len(A)
for i in range(m):
for j in range(m):
if L[i][j]==n:
//do some processing
else:
break;
int a = 1;
char b = (char) a;
System.out.println(b);
will print out the char with Unicode code point 1 (start-of-heading char, which isn't printable; see this table: C0 Controls and Basic Latin, same as ASCII)
int a = '1';
char b = (char) a;
System.out.println(b);
will print out the char with Unicode code point 49 (one corresponding to '1')
If you want to convert a digit (0-9), you can add 48 to it and cast, or something like Character.forDigit(a, 10);
.
If you want to convert an int
seen as a Unicode code point, you can use Character.toChars(48)
for example.
For DD-MM-YY use this code:
var array = ["03-03-2017', '03-10-2017', '03-25-2017"]
$('#datepicker').datepicker({
beforeShowDay: function(date){
var string = jQuery.datepicker.formatDate('dd-mm-yy', date);
return [ array.indexOf(string) == -1 ]
}
});
function highlightDays(date) {
for (var i = 0; i < dates.length; i++) {
if (new Date(dates[i]).toString() == date.toString()) {
return [true, 'highlight'];
}
}
return [true, ''];
}
i Used Like This :
recyclerView.getLayoutManager().smoothScrollToPosition(recyclerView, new RecyclerView.State(), 5);
Steps for Using Group by,Having By and Order by...
Select Attitude ,count(*) from Person
group by person
HAving PersonAttitude='cool and friendly'
Order by PersonName.
Plain old Javascript:
<script type="text/javascript">
function changeHiddenInput (objDropDown)
{
var objHidden = document.getElementById("hiddenInput");
objHidden.value = objDropDown.value;
}
</script>
<form>
<select id="dropdown" name="dropdown" onchange="changeHiddenInput(this)">
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
<input type="hidden" name="hiddenInput" id="hiddenInput" value="" />
</form>
Unpopular opinion from 2020:
When it comes to ASP.NET apps I still prefer WebClient
over HttpClient
because:
The code looks unnecessarily complicated. Here is my version:
void strrev(char* str) {
size_t len = strlen(str);
char buf[len];
for (size_t i = 0; i < len; i++) {
buf[i] = str[len - 1 - i];
};
for (size_t i = 0; i < len; i++) {
str[i] = buf[i];
}
}
According to C17 6.7.2 §2:
Each list of type specifiers shall be one of the following multisets (delimited by commas, when there is more than one multiset per item); the type specifiers may occur in any order, possibly intermixed with the other declaration specifiers
— void
— char
— signed char
— unsigned char
— short, signed short, short int, or signed short int
— unsigned short, or unsigned short int
— int, signed, or signed int
— unsigned, or unsigned int
— long, signed long, long int, or signed long int
— unsigned long, or unsigned long int
— long long, signed long long, long long int, or signed long long int
— unsigned long long, or unsigned long long int
— float
— double
— long double
— _Bool
— float _Complex
— double _Complex
— long double _Complex
— atomic type specifier
— struct or union specifier
— enum specifier
— typedef name
So in case of unsigned int
we can either write unsigned
or unsigned int
, or if we are feeling crazy, int unsigned
. The latter since the standard is stupid enough to allow "...may occur in any order, possibly intermixed". This is a known flaw of the language.
Proper C code uses unsigned int
.
If you want to check on just one RadioButton
you can use the isChecked
function
if(radioButton.isChecked())
{
// is checked
}
else
{
// not checked
}
and if you have a RadioGroup
you can use
if (radioGroup.getCheckedRadioButtonId() == -1)
{
// no radio buttons are checked
}
else
{
// one of the radio buttons is checked
}
Content-Type:application/json
When you define any POST request method input parameter that should be annotated as [FromBody]
, e.g.:
[HttpPost]
public HttpResponseMessage Post([FromBody]ActivityResult ar)
{
return new HttpResponseMessage(HttpStatusCode.OK);
}
Any JSON input data must be raw data.
bool IsExist = System.IO.Directory.Exists(HttpContext.Current.Server.MapPath("/UploadedFiles/"));
if (!IsExist)
System.IO.Directory.CreateDirectory(HttpContext.Current.Server.MapPath("/UploadedFiles/"));
StreamWriter textWriter = File.CreateText(Path.Combine(HttpContext.Current.Server.MapPath("/UploadedFiles/") + "FileName.csv"));
var csvWriter = new CsvWriter(textWriter, System.Globalization.CultureInfo.CurrentCulture);
csvWriter.WriteRecords(classVM);
You can use isin
method:
In [1]: df = pd.DataFrame({'A': [5,6,3,4], 'B': [1,2,3,5]})
In [2]: df
Out[2]:
A B
0 5 1
1 6 2
2 3 3
3 4 5
In [3]: df[df['A'].isin([3, 6])]
Out[3]:
A B
1 6 2
2 3 3
And to get the opposite use ~
:
In [4]: df[~df['A'].isin([3, 6])]
Out[4]:
A B
0 5 1
3 4 5
You can't, with language primitives. As has been called out, the abc package provides this functionality in Python 2.6 and later, but there are no options for Python 2.5 and earlier. The abc
package is not a new feature of Python; instead, it adds functionality by adding explicit "does this class say it does this?" checks, with manually-implemented consistency checks to cause an error during initialization if such declarations are made falsely.
Python is a militantly dynamically-typed language. It does not specify language primitives to allow you to prevent a program from compiling because an object does not match type requirements; this can only be discovered at run time. If you require that a subclass implement a method, document that, and then just call the method in the blind hope that it will be there.
If it's there, fantastic, it simply works; this is called duck typing, and your object has quacked enough like a duck to satisfy the interface. This works just fine even if self
is the object you're calling such a method on, for the purposes of mandatory overrides due to base methods that need specific implementations of features (generic functions), because self
is a convention, not anything actually special.
The exception is in __init__
, because when your initializer is being called, the derived type's initializer hasn't, so it hasn't had the opportunity to staple its own methods onto the object yet.
If the method was't implemented, you'll get an AttributeError (if it's not there at all) or a TypeError (if something by that name is there but it's not a function or it didn't have that signature). It's up to you how you handle that- either call it programmer error and let it crash the program (and it "should" be obvious to a python developer what causes that kind of error there- an unmet duck interface), or catch and handle those exceptions when you discover that your object didn't support what you wish it did. Catching AttributeError and TypeError is important in a lot of situations, actually.
# the more input you want to add variable accordingly
x,y,z=input("enter the numbers: ").split( )
#for printing
print("value of x: ",x)
print("value of y: ",y)
print("value of z: ",z)
#for multiple inputs
#using list, map
#split seperates values by ( )single space in this case
x=list(map(int,input("enter the numbers: ").split( )))
#we will get list of our desired elements
print("print list: ",x)
hope you got your answer :)
There are a number of "is methods" on strings. islower()
and isupper()
should meet your needs:
>>> 'hello'.islower()
True
>>> [m for m in dir(str) if m.startswith('is')]
['isalnum', 'isalpha', 'isdigit', 'islower', 'isspace', 'istitle', 'isupper']
Here's an example of how to use those methods to classify a list of strings:
>>> words = ['The', 'quick', 'BROWN', 'Fox', 'jumped', 'OVER', 'the', 'Lazy', 'DOG']
>>> [word for word in words if word.islower()]
['quick', 'jumped', 'the']
>>> [word for word in words if word.isupper()]
['BROWN', 'OVER', 'DOG']
>>> [word for word in words if not word.islower() and not word.isupper()]
['The', 'Fox', 'Lazy']
Python test performing same multiplication 100 million times against the same random numbers.
>>> from timeit import timeit
>>> setup_str = 'import scipy; from scipy import random; scipy.random.seed(0)'
>>> N = 10*1000*1000
>>> timeit('x=random.randint(65536);', setup=setup_str, number=N)
1.894096851348877 # Time from generating the random #s and no opperati
>>> timeit('x=random.randint(65536); x*2', setup=setup_str, number=N)
2.2799630165100098
>>> timeit('x=random.randint(65536); x << 1', setup=setup_str, number=N)
2.2616429328918457
>>> timeit('x=random.randint(65536); x*10', setup=setup_str, number=N)
2.2799630165100098
>>> timeit('x=random.randint(65536); (x << 3) + (x<<1)', setup=setup_str, number=N)
2.9485139846801758
>>> timeit('x=random.randint(65536); x // 2', setup=setup_str, number=N)
2.490908145904541
>>> timeit('x=random.randint(65536); x / 2', setup=setup_str, number=N)
2.4757170677185059
>>> timeit('x=random.randint(65536); x >> 1', setup=setup_str, number=N)
2.2316000461578369
So in doing a shift rather than multiplication/division by a power of two in python, there's a slight improvement (~10% for division; ~1% for multiplication). If its a non-power of two, there's likely a considerable slowdown.
Again these #s will change depending on your processor, your compiler (or interpreter -- did in python for simplicity).
As with everyone else, don't prematurely optimize. Write very readable code, profile if its not fast enough, and then try to optimize the slow parts. Remember, your compiler is much better at optimization than you are.
Funny the answer is hidden in among the answers.
str.replace("•", "something")
would work if you use the right semantics.
str.replace(u"\u2022","something")
works wonders ;) , thnx to RParadox for the hint.
$(this)
instead of $this
$("tr.item").each(function() {
var quantity1 = $(this).find("input.name").val(),
quantity2 = $(this).find("input.id").val();
});
Don't forget to generate a second password for your Gmail account. You will use this new password in your code. Read this:
https://support.google.com/accounts/answer/185833
Under the section "How to generate an App password" click on "App passwords", then under "Select app" choose "Mail", select your device and click "Generate". Your second password will be printed on the screen.
This line
except Vehicle.vehicledevice.device.DoesNotExist
means look for device instance for DoesNotExist exception, but there's none, because it's on class level, you want something like
except Device.DoesNotExist
Answer provided by Nicholas Krasnov
SELECT *
FROM BOOKING_SESSION
WHERE TO_CHAR(T_SESSION_DATETIME, 'DD-MM-YYYY') ='20-03-2012';
One approach is to add a pure virtual GetNodeType() method to NodeDTO and override it in the descendants so that each descendant returns actual type.
For Vuejs 2.5 & vue-router 3.0 nothing above worked for me, however after playing around a little bit the following seems to work:
export default new Router({
mode: 'history',
hash: false,
routes: [
...
,
{ path: '*', redirect: '/' }, // catch all use case
],
})
note that you will also need to add the catch-all path.
SELECT name
FROM orders,company
WHERE orderID = 1
AND companyID IN (attachedCompanyIDs)
attachedCompanyIDs
is a scalar value which is cast into INT
(type of companyID
).
The cast only returns numbers up to the first non-digit (a comma in your case).
Thus,
companyID IN ('1,2,3') = companyID IN (CAST('1,2,3' AS INT)) = companyID IN (1)
In PostgreSQL
, you could cast the string into array (or store it as an array in the first place):
SELECT name
FROM orders
JOIN company
ON companyID = ANY (('{' | attachedCompanyIDs | '}')::INT[])
WHERE orderID = 1
and this would even use an index on companyID
.
Unfortunately, this does not work in MySQL
since the latter does not support arrays.
You may find this article interesting (see #2
):
Update:
If there is some reasonable limit on the number of values in the comma separated lists (say, no more than 5
), so you can try to use this query:
SELECT name
FROM orders
CROSS JOIN
(
SELECT 1 AS pos
UNION ALL
SELECT 2 AS pos
UNION ALL
SELECT 3 AS pos
UNION ALL
SELECT 4 AS pos
UNION ALL
SELECT 5 AS pos
) q
JOIN company
ON companyID = CAST(NULLIF(SUBSTRING_INDEX(attachedCompanyIDs, ',', -pos), SUBSTRING_INDEX(attachedCompanyIDs, ',', 1 - pos)) AS UNSIGNED)
Each of your exec calls creates a process. You second and third calls do not run in the same shell process you create in the first one. Try putting all commands in a bat script and running it in one call:
rt.exec("cmd myfile.bat");
or similar
Normally a wart to indicate the type is appended or prepended to the name. You can get away with macros is some instances, but it rather depends what you're trying to do. There's no polymorphism in C, only coercion.
Simple generic operations can be done with macros:
#define max(x,y) ((x)>(y)?(x):(y))
If your compiler supports typeof, more complicated operations can be put in the macro. You can then have the symbol foo(x) to support the same operation different types, but you can't vary the behaviour between different overloads. If you want actual functions rather than macros, you might be able to paste the type to the name and use a second pasting to access it (I haven't tried).
You can get this in following way,
DateTimeFormatInfo mfi = new DateTimeFormatInfo();
string strMonthName = mfi.GetMonthName(8).ToString(); //August
Now, get first three characters
string shortMonthName = strMonthName.Substring(0, 3); //Aug
Before doing
git clone https://example.com/root/test.git
make sure that you have added ssh key in your system. Follow this : https://gitlab.com/profile/keys .
Once added run the above command. It will prompt for your gitlab username and password and on authentication, it will be cloned.
Have you tried to use Sleep?
There's an example HERE (copied below):
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Private Sub Form_Activate()
frmSplash.Show
DoEvents
Sleep 1000
Unload Me
frmProfiles.Show
End Sub
Notice it might freeze the application for the chosen amount of time.
You can get the version of the oracle client by running this command sqlplus /nolog on cmd. Another alternative will be to browse to the path C:\Program Files\Oracle\Inventory and open the "Inventory.xml" file which will give you the version as per below:
<?xml version="1.0" standalone="yes" ?>
<!-- Copyright (c) 1999, 2019, Oracle and/or its affiliates.
All rights reserved. -->
<!-- Do not modify the contents of this file by hand. -->
<INVENTORY>
<VERSION_INFO>
<SAVED_WITH>12.2.0.1.4</SAVED_WITH>
<MINIMUM_VER>2.1.0.6.0</MINIMUM_VER>
</VERSION_INFO>
Assuming that it's a TCP (rather than UDP) port that you're trying to use:
On the server itself, use netstat -an
to check to see which ports are listening.
From outside, just use telnet host port
(or telnet host:port
on Unix systems) to see if the connection is refused, accepted, or timeouts.
On that latter test, then in general:
On Windows 7 or Windows Vista the default option 'telnet' is not recognized as an internal or external command, operable program or batch file. To solve this, just enable it: Click *Start** → Control Panel → Programs → Turn Windows Features on or off. In the list, scroll down and select Telnet Client and click OK.
The other answers all contain significant omissions.
The is
operator does not check if the runtime type of the operand is exactly the given type; rather, it checks to see if the runtime type is compatible with the given type:
class Animal {}
class Tiger : Animal {}
...
object x = new Tiger();
bool b1 = x is Tiger; // true
bool b2 = x is Animal; // true also! Every tiger is an animal.
But checking for type identity with reflection checks for identity, not for compatibility
bool b5 = x.GetType() == typeof(Tiger); // true
bool b6 = x.GetType() == typeof(Animal); // false! even though x is an animal
or with the type variable
bool b7 = t == typeof(Tiger); // true
bool b8 = t == typeof(Animal); // false! even though x is an
If that's not what you want, then you probably want IsAssignableFrom:
bool b9 = typeof(Tiger).IsAssignableFrom(x.GetType()); // true
bool b10 = typeof(Animal).IsAssignableFrom(x.GetType()); // true! A variable of type Animal may be assigned a Tiger.
or with the type variable
bool b11 = t.IsAssignableFrom(x.GetType()); // true
bool b12 = t.IsAssignableFrom(x.GetType()); // true! A
The rules about how much memory is consumed depend on the JVM implementation and the CPU architecture (32 bit versus 64 bit for example).
For the detailed rules for the SUN JVM check my old blog
Regards, Markus
from the yii2 framework
/**
* Generates a random string of specified length.
* The string generated matches [A-Za-z0-9_-]+ and is transparent to URL-encoding.
*
* @param int $length the length of the key in characters
* @return string the generated random key
*/
function generateRandomString($length = 10) {
$bytes = random_bytes($length);
return substr(strtr(base64_encode($bytes), '+/', '-_'), 0, $length);
}
You want a semantic linebreak?
Then consider using <br>
. W3Schools may suggest you that BR
is just for writing poems (mine is coming soon) but you can change the style so it behaves as a 100% width block element that will push your content to the next line. If 'br' suggests a break then it seems more appropriate to me than using hr
or a 100% div
and makes the html more readable.
Insert the <br>
where you need linebreaks and style it like this.
// Use `>` to avoid styling `<br>` inside your boxes
.container > br
{
width: 100%;
content: '';
}
You can disable <br>
with media queries, by setting display:
to block
or none
as appropriate (I've included an example of this but left it commented out).
You can use order:
to set the order if needed too.
And you can put as many as you want, with different classes or names :-)
.container {_x000D_
background: tomato;_x000D_
display: flex;_x000D_
flex-flow: row wrap;_x000D_
justify-content: space-between;_x000D_
}_x000D_
.item {_x000D_
width: 100px;_x000D_
background: gold;_x000D_
height: 100px;_x000D_
border: 1px solid black;_x000D_
font-size: 30px;_x000D_
line-height: 100px;_x000D_
text-align: center;_x000D_
margin: 10px_x000D_
}_x000D_
_x000D_
.container > br_x000D_
{_x000D_
width: 100%;_x000D_
content: '';_x000D_
}_x000D_
_x000D_
// .linebreak1 _x000D_
// { _x000D_
// display: none;_x000D_
// }_x000D_
_x000D_
// @media (min-width: 768px) _x000D_
// {_x000D_
// .linebreak1_x000D_
// {_x000D_
// display: block;_x000D_
// }_x000D_
// }
_x000D_
<div class="container">_x000D_
<div class="item">1</div>_x000D_
<div class="item">2</div>_x000D_
<br class="linebreak1"/>_x000D_
<div class="item">3</div>_x000D_
<div class="item">4</div>_x000D_
<div class="item">5</div>_x000D_
<div class="item">6</div>_x000D_
<div class="item">7</div>_x000D_
<div class="item">8</div>_x000D_
<div class="item">9</div>_x000D_
<div class="item">10</div>_x000D_
</div>
_x000D_
No need to limit yourself to what W3Schools says:
The file value can either be an absolute path like "c:\logs\log.txt" or a relative path which I believe is relative to the bin directory.
As far as implementing it, I usually place the following at the top of any class I plan to log in:
private static readonly ILog Log = LogManager.GetLogger(
MethodBase.GetCurrentMethod().DeclaringType);
Finally, you can use it like so:
Log.Debug("This is a DEBUG level message.");
Given a command like attrib
:
require 'open3'
a="attrib"
Open3.popen3(a) do |stdin, stdout, stderr|
puts stdout.read
end
I've found that while this method isn't as memorable as
system("thecommand")
or
`thecommand`
in backticks, a good thing about this method compared to other methods is
backticks don't seem to let me puts
the command I run/store the command I want to run in a variable, and system("thecommand")
doesn't seem to let me get the output whereas this method lets me do both of those things, and it lets me access stdin, stdout and stderr independently.
See "Executing commands in ruby" and Ruby's Open3 documentation.
If it's a matter of just opening PDF to send some keys to it then why not try this
Sub Sample()
ActiveWorkbook.FollowHyperlink "C:\MyFile.pdf"
End Sub
I am assuming that you have some pdf reader installed.
I ended up using BackgroundWorker, it is definitely asynchronous unlike some of the above solutions, it handles returning to the GUI thread for you, and it is very easy to understand.
It is also very easy to handle exceptions, as they end up in the RunWorkerCompleted method, but make sure you read this: Unhandled exceptions in BackgroundWorker
I used WebClient but obviously you could use HttpWebRequest.GetResponse if you wanted.
var worker = new BackgroundWorker();
worker.DoWork += (sender, args) => {
args.Result = new WebClient().DownloadString(settings.test_url);
};
worker.RunWorkerCompleted += (sender, e) => {
if (e.Error != null) {
connectivityLabel.Text = "Error: " + e.Error.Message;
} else {
connectivityLabel.Text = "Connectivity OK";
Log.d("result:" + e.Result);
}
};
connectivityLabel.Text = "Testing Connectivity";
worker.RunWorkerAsync();
This little and simple trick I just learnt may help someone trying to avoid :before or :after pseudo elements altogether (for whatever reason) in changing text on hover. You can add both texts in the HTML, but vary the CSS 'display' property based on hover. Assuming the second text 'Add' has a class named 'add-label'; here is a little modification:
span.add-label{
display:none;
}
.item:hover span.align{
display:none;
}
.item:hover span.add-label{
display:block;
}
Here is a demonstration on codepen: https://codepen.io/ifekt/pen/zBaEVJ
While performance is an issue, I think modern database designs have made it much less of an issue for small files.
Performance aside, it also depends on just how tightly-coupled the data is. If the file contains data that is closely related to the fields of the database, then it conceptually belongs close to it and may be stored in a blob. If it contains information which could potentially relate to multiple records or may have some use outside of the context of the database, then it belongs outside. For example, an image on a web page is fetched on a separate request from the page that links to it, so it may belong outside (depending on the specific design and security considerations).
Our compromise, and I don't promise it's the best, has been to store smallish XML files in the database but images and other files outside it.
please try to execute java
from
C:\Program Files\Java\jdk1.7.0_10\bin
i.e from the location where java is installed.
If it is successful, it means that the error lies somewhere in the classpath.
Also, this guy seems to have had the same problem as yours, check it out
Ref and event bus both has issues when your control render is affected by v-if
. So, I decided to go with a simpler method.
The idea is using an array as a queue to send methods that needs to be called to the child component. Once the component got mounted, it will process this queue. It watches the queue to execute new methods.
(Borrowing some code from Desmond Lua's answer)
Parent component code:
import ChildComponent from './components/ChildComponent'
new Vue({
el: '#app',
data: {
item: {},
childMethodsQueue: [],
},
template: `
<div>
<ChildComponent :item="item" :methods-queue="childMethodsQueue" />
<button type="submit" @click.prevent="submit">Post</button>
</div>
`,
methods: {
submit() {
this.childMethodsQueue.push({name: ChildComponent.methods.save.name, params: {}})
}
},
components: { ChildComponent },
})
This is code for ChildComponent
<template>
...
</template>
<script>
export default {
name: 'ChildComponent',
props: {
methodsQueue: { type: Array },
},
watch: {
methodsQueue: function () {
this.processMethodsQueue()
},
},
mounted() {
this.processMethodsQueue()
},
methods: {
save() {
console.log("Child saved...")
},
processMethodsQueue() {
if (!this.methodsQueue) return
let len = this.methodsQueue.length
for (let i = 0; i < len; i++) {
let method = this.methodsQueue.shift()
this[method.name](method.params)
}
},
},
}
</script>
And there is a lot of room for improvement like moving processMethodsQueue
to a mixin...
Open up terminal first and then go to directory of web server
cd /Library/WebServer/Documents
and then type this and what you will do is you will give read
and write
permission
sudo chmod -R o+w /Library/WebServer/Documents
This will surely work!
Here is one without parentheses
[io.fileinfo] 'c:\temp\myfile.txt' | % basename
To get make to actually ignore errors on a single line, you can simply suffix it with ; true
, setting the return value to 0. For example:
rm .lambda .lambda_t .activity .activity_t_lambda 2>/dev/null; true
This will redirect stderr output to null, and follow the command with true (which always returns 0, causing make to believe the command succeeded regardless of what actually happened), allowing program flow to continue.
After my previous answer was deleted for failing to include the code, on the basis the Ansi characters used can not be displayed by stack overflow rendering the presence of the code somewhat pointless given it was based on them, I have redesigned the code to include the method of populating the Escape character detailed by @Sam Hasler
In the process, I've also taken out all the subroutines in favor of macro's, and adapted my approach to passing parameters to the macro's.
All macro's balance the Setlocal / Endlocal pairings to prevent exceeding recursion level's through use of ^&^& endlocal
after completeing their handling of the Args.
The std.out macro also demonstrates how to adapt the macros to store output into variables that survive past the Endlocal barrier.
@Echo off & Mode 1000
::: / Creates two variables with one character DEL=Ascii-08 and /AE=Ascii-27 escape code. only /AE is used
::: - http://www.dostips.com/forum/viewtopic.php?t=1733
::: - https://stackoverflow.com/a/34923514/12343998
:::
::: - DEL and ESC can be used with and without DelayedExpansion, except during Macro Definition
Setlocal
For /F "tokens=1,2 delims=#" %%a in ('"prompt #$H#$E# & echo on & for %%b in (1) do rem"') do (
Endlocal
Set "DEL=%%a"
Set "/AE=%%b"
)
::: \
::: / Establish Environment for macro Definition
Setlocal DisableDelayedExpansion
(Set LF=^
%= NewLine =%)
Set ^"\n=^^^%LF%%LF%^%LF%%LF%^^"
::: \
::: / Ascii code variable assignment
::: - Variables used for cursor Positiong Ascii codes in the form of bookends to prevent ansi escape code disrupting macro definition
Set "[=%/AE%["
Set "]=H"
::: - define Variables for Ascii color code values
Set "Red=%/AE%[31m"
Set "Green=%/AE%[32m"
Set "Yellow=%/AE%[33m"
Set "Blue=%/AE%[34m"
Set "Purple=%/AE%[35m"
Set "Cyan=%/AE%[36m"
Set "White=%/AE%[37m"
Set "Grey=%/AE%[90m"
Set "Pink=%/AE%[91m"
Set "BrightGreen=%/AE%[92m"
Set "Beige=%/AE%[93m"
Set "Aqua=%/AE%[94m"
Set "Magenta=%/AE%[95m"
Set "Teal=%/AE%[96m"
Set "BrightWhite=%/AE%[97m"
Set "Off=%/AE%[0m"
::: \
::: / mini-Macro to Pseudo pipe complex strings into Macros.
Set "Param|=Set Arg-Output="
::: \
::: / Macro for outputing to cursor position Arg1 in color Arg2
Set Pos.Color=^&for /L %%n in (1 1 2) do if %%n==2 (%\n%
For /F "tokens=1,2 delims=, " %%G in ("!argv!") do (%\n%
Echo(![!%%G!]!!%%H!!Arg-Output!!Off!^&^&Endlocal%\n%
) %\n%
) ELSE setlocal enableDelayedExpansion ^& set argv=,
::: \
::: / Macro variable for creating a Colored prompt with pause at Cursor pos Arg1 in Color Arg2
Set Prompt.Pause=^&for /L %%n in (1 1 2) do if %%n==2 (%\n%
For /F "tokens=1,2 delims=, " %%G in ("!argv!") do (%\n%
Echo.!/AE![%%G!]!!/AE![%%Hm!Arg-Output!!Off!%\n%
pause^>nul ^&^& Endlocal%\n%
) %\n%
) ELSE setlocal enableDelayedExpansion ^& set argv=,
::: \
::: / Macro variable for outputing to stdout on a new line with selected color Arg1 and store output to VarName Arg2
Set std.out=^&for /L %%n in (1 1 2) do if %%n==2 (%\n%
For /F "tokens=1,2 delims=, " %%G in ("!argv!") do (%\n%
Echo.!/AE![%%Gm!Arg-Output!!Off!^&^& Endlocal ^&(Set %%H=!Arg-Output!)%\n%
) %\n%
) ELSE setlocal enableDelayedExpansion ^& set argv=,
::: \
::: / Stringlength Macro. Not utilized in this example.
::: Usage: %Param|%string or expanded variable%get.strLen% ResultVar
Set get.strLen=^&for /L %%n in (1 1 2) do if %%n==2 (%\n%
For /F "tokens=1,* delims=, " %%G in ("!argv!") do (%\n%
Set tmpLen=!Arg-Output!%\n%
Set LenTrim=Start%\n%
For /L %%a in (1,1,250) Do (%\n%
IF NOT "!LenTrim!"=="" (%\n%
Set LenTrim=!tmpLen:~0,-%%a!%\n%
If "!LenTrim!"=="" Echo.>nul ^&^& Endlocal ^&(Set %%G=%%a)%\n%
)%\n%
) %\n%
) %\n%
) ELSE setlocal enableDelayedExpansion ^& set argv=,
::: \
::: / Create Script break for Subroutines. Subroutines not utilized in this example
Goto :main
::: \
::: / Subroutines
::: \
::: / Script main Body
:::::: - Example usage
:main
Setlocal EnableDelayedExpansion
For %%A in ("31,1,37" "41,1,47" "90,1,97" "100,1,107") do For /L %%B in (%%~A) Do %Param|%[Color Code = %%B.]%std.out% %%B AssignVar
Set "XP=20"
For %%A in (red aqua white brightwhite brightgreen beige blue magenta green pink cyan grey yellow purple teal) do (
Set /A XP+=1
Set /A YP+=1
Set "output=%%A !YP!;!XP!"
%Param|%Cursor Pos: !YP!;!XP!, %%A %Pos.Color% !YP!;!XP! %%A
)
%Param|%Example %green%Complete.%prompt.pause% 32;10 31
Endlocal
Exit /B
::: \ End Script
My thanks to @Martijn Pieters for deleting my previous answer. In rewriting my code I also discovered for myself some new ways to manipulate macro's.
I actually found a better way using the jQuery approach
var box = {
config:{
color: 'red'
},
init:function(config){
$.extend(this.config,config);
}
};
var myBox = box.init({
color: blue
});
If you are using asset catalogs, go to the LaunchImages asset catalog and add the new launch images for the two new iPhones. You may need to right-click and choose "Add New Launch Image" to see a place to add the new images.
The iPhone 6 (Retina HD 4.7) requires a portrait launch image of 750 x 1334.
The iPhone 6 Plus (Retina HD 5.5) requires both portrait and landscape images sized as 1242 x 2208 and 2208 x 1242 respectively.
Check out the DirectoryIterator class.
From one of the comments on that page:
// output all files and directories except for '.' and '..'
foreach (new DirectoryIterator('../moodle') as $fileInfo) {
if($fileInfo->isDot()) continue;
echo $fileInfo->getFilename() . "<br>\n";
}
The recursive version is RecursiveDirectoryIterator.
It is better to use the more powerful [[
as far as Bash is concerned.
if [[ $var ]]; then # var is set and it is not empty
if [[ ! $var ]]; then # var is not set or it is set to an empty string
The above two constructs look clean and readable. They should suffice in most cases.
Note that we don't need to quote the variable expansions inside [[
as there is no danger of word splitting and globbing.
To prevent shellcheck's soft complaints about [[ $var ]]
and [[ ! $var ]]
, we could use the -n
option.
In the rare case of us having to make a distinction between "being set to an empty string" vs "not being set at all", we could use these:
if [[ ${var+x} ]]; then # var is set but it could be empty
if [[ ! ${var+x} ]]; then # var is not set
if [[ ${var+x} && ! $var ]]; then # var is set and is empty
We can also use the -v
test:
if [[ -v var ]]; then # var is set but it could be empty
if [[ ! -v var ]]; then # var is not set
if [[ -v var && ! $var ]]; then # var is set and is empty
if [[ -v var && -z $var ]]; then # var is set and is empty
There are a plenty of posts related to this topic. Here are a few:
[[
vs [
[
vs [[
From a Windows Server OS execute the following command for a dump of the entire Active Director:
csvde -f test.csv
This command is very broad and will give you more than necessary information. To constrain the records to only user records, you would instead want:
csvde -f test.csv -r objectClass=user
You can further restrict the command to give you only the fields you need relevant to the search requested such as:
csvde -f test.csv -r objectClass=user -l DN, sAMAccountName, department, memberOf
If you have an Exchange server and each user associated with a live person has a mailbox (as opposed to generic accounts for kiosk / lab workstations) you can use mailNickname in place of sAMAccountName.
I agree with Ben. You cannot load/import the simple JSON file.
But if you absolutely want to do that and have flexibility to update json file, you can
my-json.js
var myJSON = {
id: "12ws",
name: "smith"
}
index.html
<head>
<script src="my-json.js"></script>
</head>
<body onload="document.getElementById('json-holder').innerHTML = JSON.stringify(myJSON);">
<div id="json-holder"></div>
</body>
No need to pass anything in. The function used for addEventListener
will automatically have this
bound to the current element. Simply use this
in your function:
productLineSelect.addEventListener('change', getSelection, false);
function getSelection() {
var value = this.options[this.selectedIndex].value;
alert(value);
}
Here's the fiddle: http://jsfiddle.net/dJ4Wm/
If you want to pass arbitrary data to the function, wrap it in your own anonymous function call:
productLineSelect.addEventListener('change', function() {
foo('bar');
}, false);
function foo(message) {
alert(message);
}
Here's the fiddle: http://jsfiddle.net/t4Gun/
If you want to set the value of this
manually, you can use the call
method to call the function:
var self = this;
productLineSelect.addEventListener('change', function() {
getSelection.call(self);
// This'll set the `this` value inside of `getSelection` to `self`
}, false);
function getSelection() {
var value = this.options[this.selectedIndex].value;
alert(value);
}
No.
First off, append
is a function, so you can't write append[i+1:i+4]
because you're trying to get a slice of a thing that isn't a sequence. (You can't get an element of it, either: append[i+1]
is wrong for the same reason.) When you call a function, the argument goes in parentheses, i.e. the round ones: ()
.
Second, what you're trying to do is "take a sequence, and put every element in it at the end of this other sequence, in the original order". That's spelled extend
. append
is "take this thing, and put it at the end of the list, as a single item, even if it's also a list". (Recall that a list is a kind of sequence.)
But then, you need to be aware that i+1:i+4
is a special construct that appears only inside square brackets (to get a slice from a sequence) and braces (to create a dict
object). You cannot pass it to a function. So you can't extend
with that. You need to make a sequence of those values, and the natural way to do this is with the range
function.
$python 2.7.8
from timeit import timeit
import numpy
timeit("list(0 for i in xrange(0, 100000))", number=1000)
> 8.173301935195923
timeit("[0 for i in xrange(0, 100000)]", number=1000)
> 4.881675958633423
timeit("[0] * 100000", number=1000)
> 0.6624710559844971
timeit('list(itertools.repeat(0, 100000))', 'import itertools', number=1000)
> 1.0820629596710205
You should use [0] * n
to generate a list with n
zeros.
See why [] is faster than list()
There is a gotcha though, both itertools.repeat
and [0] * n
will create lists whose elements refer to same id
. This is not a problem with immutable objects like integers or strings but if you try to create list of mutable objects like a list of lists ([[]] * n
) then all the elements will refer to the same object.
a = [[]] * 10
a[0].append(1)
a
> [[1], [1], [1], [1], [1], [1], [1], [1], [1], [1]]
[0] * n
will create the list immediately while repeat
can be used to create the list lazily when it is first accessed.
If you're dealing with really large amount of data and your problem doesn't need variable length of list or multiple data types within the list it is better to use numpy
arrays.
timeit('numpy.zeros(100000, numpy.int)', 'import numpy', number=1000)
> 0.057849884033203125
numpy
arrays will also consume less memory.
Here is an overview in a table format in order to show the differences between Pool.apply
, Pool.apply_async
, Pool.map
and Pool.map_async
. When choosing one, you have to take multi-args, concurrency, blocking, and ordering into account:
| Multi-args Concurrence Blocking Ordered-results
---------------------------------------------------------------------
Pool.map | no yes yes yes
Pool.map_async | no yes no yes
Pool.apply | yes no yes no
Pool.apply_async | yes yes no no
Pool.starmap | yes yes yes yes
Pool.starmap_async| yes yes no no
Pool.imap
and Pool.imap_async
– lazier version of map and map_async.
Pool.starmap
method, very much similar to map method besides it acceptance of multiple arguments.
Async
methods submit all the processes at once and retrieve the results once they are finished. Use get method to obtain the results.
Pool.map
(or Pool.apply
)methods are very much similar to Python built-in map(or apply). They block the main process until all the processes complete and return the result.
Is called for a list of jobs in one time
results = pool.map(func, [1, 2, 3])
Can only be called for one job
for x, y in [[1, 1], [2, 2]]:
results.append(pool.apply(func, (x, y)))
def collect_result(result):
results.append(result)
Is called for a list of jobs in one time
pool.map_async(func, jobs, callback=collect_result)
Can only be called for one job and executes a job in the background in parallel
for x, y in [[1, 1], [2, 2]]:
pool.apply_async(worker, (x, y), callback=collect_result)
Is a variant of pool.map
which support multiple arguments
pool.starmap(func, [(1, 1), (2, 1), (3, 1)])
A combination of starmap() and map_async() that iterates over iterable of iterables and calls func with the iterables unpacked. Returns a result object.
pool.starmap_async(calculate_worker, [(1, 1), (2, 1), (3, 1)], callback=collect_result)
Find complete documentation here: https://docs.python.org/3/library/multiprocessing.html
Please try the following:
import re
name = ["A1B1", "djdd", "B2C4", "C2H2", "jdoi","1A4V"]
# Match names.
for element in name:
m = re.match("(^[A-Z]\d[A-Z]\d)", element)
if m:
print(m.groups())
I also made a solution, and it works quite well:
It uses jQuery and CSS
First, I made a quick CSS class, this can be embedded or in a seperate file.
<style type='text/css'>
.Clicked {
/*No Attributes*/
}
</style>
Next, On the click event of a button within the form,add the CSS class to the button. If the button already has the CSS class, remove it. (We don't want two CSS classes [Just in case]).
// Adds a CSS Class to the Button That Has Been Clicked.
$("form :input[type='submit']").click(function ()
{
if ($(this).hasClass("Clicked"))
{
$(this).removeClass("Clicked");
}
$(this).addClass("Clicked");
});
Now, test the button to see it has the CSS class, if the tested button doesn't have the CSS, then the other button will.
// On Form Submit
$("form").submit(function ()
{
// Test Which Button Has the Class
if ($("input[name='name1']").hasClass("Clicked"))
{
// Button 'name1' has been clicked.
}
else
{
// Button 'name2' has been clicked.
}
});
Hope this helps! Cheers!
Equivalent in python would be:
>>> import time
>>> tic = time.clock()
>>> toc = time.clock()
>>> toc - tic
If you are trying to find the best performing method then you should probably have a look at timeit
.
Here, as the Text widget does not have a property that allows us to define a border
, we should wrap it with a widget that allows us to define a border.
There are several solutions.
But the best solution is the use of BoxDecoration in the Container widget.
Why choose to use BoxDecoration ?
Because BoxDecoration offers more customization like the possibility to define :
First, the border
and also define:
An example :
Container(
child:Text(' Hello Word '),
decoration: BoxDecoration(
color: Colors.yellow,
border: Border.all(
color: Colors.red ,
width: 2.0 ,
),
borderRadius: BorderRadius.circular(15),
),
),
Output :
Incase any one still wondering how to add environment variables then please use this link to add variables. Link: https://sqlbackupandftp.com/blog/setting-windows-path-for-postgres-tools
If your data resides on HDFS, perhaps the fastest approach is to use hadoop streaming. Apache Pig's COUNT UDF, operates on a bag, and therefore uses a single reducer to compute the number of rows. Instead you can manually set the number of reducers in a simple hadoop streaming script as follows:
$HADOOP_HOME/bin/hadoop jar $HADOOP_HOME/hadoop-streaming.jar -Dmapred.reduce.tasks=100 -input <input_path> -output <output_path> -mapper /bin/cat -reducer "wc -l"
Note that I manually set the number of reducers to 100, but you can tune this parameter. Once the map-reduce job is done, the result from each reducer is stored in a separate file. The final count of rows is the sum of numbers returned by all reducers. you can get the final count of rows as follows:
$HADOOP_HOME/bin/hadoop fs -cat <output_path>/* | paste -sd+ | bc
If you have a multi-dimensional array, len() might not give you the value you are looking for. For instance:
import numpy as np
a = np.arange(10).reshape(2, 5)
print len(a) == 2
This code block will return true, telling you the size of the array is 2. However, there are in fact 10 elements in this 2D array. In the case of multi-dimensional arrays, len() gives you the length of the first dimension of the array i.e.
import numpy as np
len(a) == np.shape(a)[0]
To get the number of elements in a multi-dimensional array of arbitrary shape:
import numpy as np
size = 1
for dim in np.shape(a): size *= dim
i don't know if it's the answer to your question but you can try setting the background color in the xml layout like this. It is easy, it always works
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="0xfff00000"
>
<TextView
android:id="@+id/text_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
</LinearLayout>
You can also do more fancy things with backgrounds by creating an xml background file with gradients which are cool and semi transparent, and refer to it for other use see example below:
the background.xml layout
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<gradient
android:angle="90"
android:startColor="#f0000000"
android:endColor="#ff444444"
android:type="linear" />
</shape>
</item>
</selector>
your layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@layout/background"
>
<TextView
android:id="@+id/text_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
</LinearLayout>
The fastest way that I've found is:
// Open the file
$fp = @fopen($filename, 'r');
// Add each line to an array
if ($fp) {
$array = explode("\n", fread($fp, filesize($filename)));
}
where $filename is going to be the path & name of your file, eg. ../filename.txt.
Depending how you've set up your text file, you'll have might have to play around with the \n bit.
thanks patrice-n! this code worked to get both queued and running jobs and their parameters:
import hudson.model.Job
import hudson.model.ParametersAction
import hudson.model.Queue
import jenkins.model.Jenkins
println("================================================")
for (Job job : Jenkins.instanceOrNull.getAllItems(Job.class)) {
if (job.isInQueue()) {
println("------------------------------------------------")
println("InQueue " + job.name)
Queue.Item queue = job.getQueueItem()
if (queue != null) {
println(queue.params)
}
}
if (job.isBuilding()) {
println("------------------------------------------------")
println("Building " + job.name)
def build = job.getBuilds().getLastBuild()
def parameters = build?.getAllActions().find{ it instanceof ParametersAction }?.parameters
parameters.each {
def dump = it.dump()
println "parameter ${it.name}: ${dump}"
}
}
}
println("================================================")
You can't group by literals, only columns.
You are probably looking for something like this:
select
LEFT(SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', batchinfo.datapath), 8000), PATINDEX('%[^0-9]%', SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', batchinfo.datapath), 8000))-1) as pathinfo,
qvalues.name,
qvalues.compound,
qvalues.rid
from batchinfo join qvalues on batchinfo.rowid=qvalues.rowid
where LEN(datapath)>4
group by pathinfo, qvalues.name, qvalues.compound
having rid!=MAX(rid)
First of all, you have to give that first expression a column name with as
. Then you have to specify the names of the columns in the group by expression.
from sklearn.linear_model import LinearRegression
X, Y = x.reshape(-1,1), y.reshape(-1,1)
plt.plot( X, LinearRegression().fit(X, Y).predict(X) )
This is how you get around that in an easy non-complicated way.
Instead of using sheet(x).range
use Activesheet.range("range").select
Use next, it will bypass that condition and rest of the code will work. Below i have provided the Full script and out put
class TestBreak
puts " Enter the nmber"
no= gets.to_i
for i in 1..no
if(i==5)
next
else
puts i
end
end
end
obj=TestBreak.new()
Output: Enter the nmber 10
1 2 3 4 6 7 8 9 10
const move = (from, to, ...a) =>from === to ? a : (a.splice(to, 0, ...a.splice(from, 1)), a);_x000D_
const moved = move(0, 2, ...['a', 'b', 'c']);_x000D_
console.log(moved)
_x000D_
I got this problem after moving a project and deleting it's packages folder. Nuget was showning that MSTest.TestAdapter and MSTest.TestFramework v 1.3.2 was installed. The fix seemed to be to open VS as administrator and build After that I was able to re-open and build without having admin priviledge.
Supposing you have the following file structure:
-css
--index.css
-images
--image1.png
--image2.png
--image3.png
In CSS you can access image1
, for example, using the line ../images/image1.png
.
NOTE: If you are using Chrome, it may doesn't work and you will get an error that the file could not be found. I had the same problem, so I just deleted the entire cache history from chrome and it worked.
while (rs.next()) {
customer.setId(rs.getInt("id"));
customer.setName(rs.getString("name"));
customer.setAddress(rs.getString("address"));
customer.setPhone(rs.getString("phone"));
customer.setEmail(rs.getString("email"));
customer.setBountPoints(rs.getInt("bonuspoint"));
customer.setTotalsale(rs.getInt("totalsale"));
customers.add(customer);
customer = null;
}
Try replacing your while loop code with above mentioned code. Here what we have done is after doing customers.add(customer)
we are doing customer = null;`
Normally, you add regular values to mySQL, from PHP like this:
function addValues($val1, $val2) {
db_open(); // just some code ot open the DB
$query = "INSERT INTO uradmonitor (db_value1, db_value2) VALUES ('$val1', '$val2')";
$result = mysql_query($query);
db_close(); // just some code to close the DB
}
When your values are empty/null ($val1=="" or $val1==NULL), and you want NULL to be added to SQL and not 0 or empty string, to the following:
function addValues($val1, $val2) {
db_open(); // just some code ot open the DB
$query = "INSERT INTO uradmonitor (db_value1, db_value2) VALUES (".
(($val1=='')?"NULL":("'".$val1."'")) . ", ".
(($val2=='')?"NULL":("'".$val2."'")) .
")";
$result = mysql_query($query);
db_close(); // just some code to close the DB
}
Note that null must be added as "NULL" and not as "'NULL'" . The non-null values must be added as "'".$val1."'", etc.
Hope this helps, I just had to use this for some hardware data loggers, some of them collecting temperature and radiation, others only radiation. For those without the temperature sensor I needed NULL and not 0, for obvious reasons ( 0 is an accepted temperature value also).
Hope I'm not going offtopic on my first post, but I'd like to expand a little on the casting of integer to string as some respondents appear to have it wrong.
Because the expression in this query uses an arithmetic operator (the plus symbol +), MySQL will convert any strings in the expression to numbers.
To demonstrate, the following will produce the result 6:
SELECT ' 05.05 '+'.95';
String concatenation in MySQL requires the CONCAT() function so there is no ambiguity here and MySQL converts the strings to floats and adds them together.
I actually think the reason the initial query wasn't working is most likely because the $points variable was not in fact set to the user's current points. It was either set to zero, or was unset: MySQL will cast an empty string to zero. For illustration, the following will return 0:
SELECT ABS('');
Like I said, I hope I'm not being too off-topic. I agree that Daan and Tomas have the best solutions for this particular problem.
The following are the best dimensions for the app to run in all devices. For understanding multiple supporting screens you have to read http://developer.android.com/guide/practices/screens_support.html
xxxhdpi: 1280x1920 px
xxhdpi: 960x1600 px
xhdpi: 640x960 px
hdpi: 480x800 px
mdpi: 320x480 px
ldpi: 240x320 px
Suppose df is a pandas DataFrame then to get number of non-null values and data types of all column at once use:
df.info()
var yearStart = 2000;
var yearEnd = 2040;
var arr = [];
for (var i = yearStart; i <= yearEnd; i++) {
arr.push(i);
}
TL;DR
For accessing OS use: System.getProperty("os.name")
.
But why not create a utility class, make it reusable! And probably much faster on multiple calls. Clean, clear, faster!
Create a Util class for such utility functions. Then create public enums for each operating system type.
public class Util {
public enum OS {
WINDOWS, LINUX, MAC, SOLARIS
};// Operating systems.
private static OS os = null;
public static OS getOS() {
if (os == null) {
String operSys = System.getProperty("os.name").toLowerCase();
if (operSys.contains("win")) {
os = OS.WINDOWS;
} else if (operSys.contains("nix") || operSys.contains("nux")
|| operSys.contains("aix")) {
os = OS.LINUX;
} else if (operSys.contains("mac")) {
os = OS.MAC;
} else if (operSys.contains("sunos")) {
os = OS.SOLARIS;
}
}
return os;
}
}
Now, you can easily invoke class from any class as follows,(P.S. Since we declared os variable as static, it will consume time only once to identify the system type, then it can be used until your application halts. )
switch (Util.getOS()) {
case WINDOWS:
//do windows stuff
break;
case LINUX:
and That is it!
Here is what I used to fade in/out Views, hope this helps someone.
private void crossFadeAnimation(final View fadeInTarget, final View fadeOutTarget, long duration){
AnimatorSet mAnimationSet = new AnimatorSet();
ObjectAnimator fadeOut = ObjectAnimator.ofFloat(fadeOutTarget, View.ALPHA, 1f, 0f);
fadeOut.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
fadeOutTarget.setVisibility(View.GONE);
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
fadeOut.setInterpolator(new LinearInterpolator());
ObjectAnimator fadeIn = ObjectAnimator.ofFloat(fadeInTarget, View.ALPHA, 0f, 1f);
fadeIn.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
fadeInTarget.setVisibility(View.VISIBLE);
}
@Override
public void onAnimationEnd(Animator animation) {}
@Override
public void onAnimationCancel(Animator animation) {}
@Override
public void onAnimationRepeat(Animator animation) {}
});
fadeIn.setInterpolator(new LinearInterpolator());
mAnimationSet.setDuration(duration);
mAnimationSet.playTogether(fadeOut, fadeIn);
mAnimationSet.start();
}
You can try this
Process[] processes = Process.GetProcessesByName("processname");
foreach (Process p in processes)
{
IntPtr pFoundWindow = p.MainWindowHandle;
// Do something with the handle...
//
}
The problem might be your split()
call. Try just split(" ")
without the square brackets.
This problem can also arise if you include jQuery more than once.
See http://www.oracle.com/technetwork/java/faq-137059.html
JSP technology is part of the Java technology family. JSP pages are compiled into servlets and may call JavaBeans components (beans) or Enterprise JavaBeans components (enterprise beans) to perform processing on the server. As such, JSP technology is a key component in a highly scalable architecture for web-based applications.
See https://jcp.org/en/introduction/faq
A: JavaServer Faces technology is a framework for building user interfaces for web applications. JavaServer Faces technology includes:
A set of APIs for: representing UI components and managing their state, handling events and input validation, defining page navigation, and supporting internationalization and accessibility.
A JavaServer Pages (JSP) custom tag library for expressing a JavaServer Faces interface within a JSP page.
JSP is a specialized kind of servlet.
JSF is a set of tags you can use with JSP.
A more reliable alternative to NSNotification
is to add yourself as observer to player's rate
property.
[self.player addObserver:self
forKeyPath:@"rate"
options:NSKeyValueObservingOptionNew
context:NULL];
Then check if the new value for observed rate is zero, which means that playback has stopped for some reason, like reaching the end or stalling because of empty buffer.
- (void)observeValueForKeyPath:(NSString *)keyPath
ofObject:(id)object
change:(NSDictionary<NSString *,id> *)change
context:(void *)context {
if ([keyPath isEqualToString:@"rate"]) {
float rate = [change[NSKeyValueChangeNewKey] floatValue];
if (rate == 0.0) {
// Playback stopped
} else if (rate == 1.0) {
// Normal playback
} else if (rate == -1.0) {
// Reverse playback
}
}
}
For rate == 0.0
case, to know what exactly caused the playback to stop, you can do the following checks:
if (self.player.error != nil) {
// Playback failed
}
if (CMTimeGetSeconds(self.player.currentTime) >=
CMTimeGetSeconds(self.player.currentItem.duration)) {
// Playback reached end
} else if (!self.player.currentItem.playbackLikelyToKeepUp) {
// Not ready to play, wait until enough data is loaded
}
And don't forget to make your player stop when it reaches the end:
self.player.actionAtItemEnd = AVPlayerActionAtItemEndPause;
Try something like this:
$txt = "user id date";
$myfile = file_put_contents('logs.txt', $txt.PHP_EOL , FILE_APPEND | LOCK_EX);
There are numerous caveats in the javadoc for the toFront() method which may be causing your problem.
But I'll take a guess anyway, when "only the tab in the taskbar flashes", has the application been minimized? If so the following line from the javadoc may apply:
"If this Window is visible, brings this Window to the front and may make it the focused Window."
It has been almost 8 years since the question was asked, but I will venture an answer not previously given. The OP said this doesn't work:
action="javascript:simpleCart.checkout()"
And the OP said that this code continued to fail despite trying all the good advice he got. So I will venture a guess. The action is calling checkout()
as a static method of the simpleCart
class; but maybe checkout()
is actually an instance member, and not static. It depends how he defined checkout()
.
By the way, simpleCart
is presumably a class name, and by convention class names have an initial capital letter, so let's use that convention, here. Let's use the name SimpleCart
.
Here is some sample code that illustrates defining checkout()
as an instance member. This was the correct way to do it, prior to ECMA-6:
function SimpleCart() {
...
}
SimpleCart.prototype.checkout = function() { ... };
Many people have used a different technique, as illustrated in the following. This was popular, and it worked, but I advocate against it, because instances are supposed to be defined on the prototype
, just once, while the following technique defines the member on this
and does so repeatedly, with every instantiation.
function SimpleCart() {
...
this.checkout = function() { ... };
}
And here is an instance definition in ECMA-6, using an official class
:
class SimpleCart {
constructor() { ... }
...
checkout() { ... }
}
Compare to a static definition in ECMA-6. The difference is just one word:
class SimpleCart {
constructor() { ... }
...
static checkout() { ... }
}
And here is a static definition the old way, pre-ECMA-6. Note that the checkout()
method is defined outside of the function. It is a member of the function object, not the prototype object, and that's what makes it static.
function SimpleCart() {
...
}
SimpleCart.checkout = function() { ... };
Because of the way it is defined, a static function will have a different concept of what the keyword this
references. Note that instance member functions are called using the this
keyword:
this.checkout();
Static member functions are called using the class name:
SimpleCart.checkout();
The problem is that the OP wants to put the call into HTML, where it will be in global scope. He can't use the keyword this
because this
would refer to the global scope (which is window
).
action="javascript:this.checkout()" // not as intended
action="javascript:window.checkout()" // same thing
There is no easy way to use an instance member function in HTML. You can do stuff in combination with JavaScript, creating a registry in the static scope of the Class, and then calling a surrogate static method, while passing an argument to that surrogate that gives the index into the registry of your instance, and then having the surrogate call the actual instance member function. Something like this:
// In Javascript:
SimpleCart.registry[1234] = new SimpleCart();
// In HTML
action="javascript:SimpleCart.checkout(1234);"
// In Javascript
SimpleCart.checkout = function(myIndex) {
var myThis = SimpleCart.registry[myIndex];
myThis.checkout();
}
You could also store the index as an attribute on the element.
But usually it is easier to just do nothing in HTML and do everything in JavaScript with .addEventListener()
and use the .bind()
capability.
A more elegant solution than creating an anonymous function who's sole purpose is to wrap another, is to use es5's bind
function. The bind function creates a new function that, when called, has its this
keyword set to the provided value, with a given sequence of arguments preceding any provided when the new function is called.
Instead of:
expect(function () { parser.parse(raw, config); } ).toThrow("Parsing is not possible");
Consider:
expect(parser.parse.bind(parser, raw, config)).toThrow("Parsing is not possible");
The bind syntax allows you to test functions with different this
values, and in my opinion makes the test more readable. See also: https://stackoverflow.com/a/13233194/1248889
Those are hexidecimal digits, not characters. One digit = 4 bits.
I was face same issue in my android application. I did just update some library and then create sign APK. Now its work.
Try this mate, you can chuck it in the body like so...
[HttpPost]
[Route("~/API/ChangeTheNameIfNeeded")]
public bool SampleCall([FromBody]JObject data)
{
var firstName = data["firstName"].ToString();
var lastName= data["lastName"].ToString();
var email = data["email"].ToString();
var obj= data["toLastName"].ToObject<SomeObject>();
return _someService.DoYourBiz(firstName, lastName, email, obj);
}
It works like this:
String item = "http://www.youtube.com/embed/";
String ss = "your url";
ss = ss.substring(ss.indexOf("v=") + 2);
item += ss;
DisplayMetrics metrics = getResources().getDisplayMetrics();
int w1 = (int) (metrics.widthPixels / metrics.density), h1 = w1 * 3 / 5;
wv.getSettings().setJavaScriptEnabled(true);
wv.setWebChromeClient(chromeClient);
wv.getSettings().setPluginsEnabled(true);
try {
wv.loadData(
"<html><body><iframe class=\"youtube-player\" type=\"text/html5\" width=\""
+ (w1 - 20)
+ "\" height=\""
+ h1
+ "\" src=\""
+ item
+ "\" frameborder=\"0\"\"allowfullscreen\"></iframe></body></html>",
"text/html5", "utf-8");
} catch (Exception e) {
e.printStackTrace();
}
private WebChromeClient chromeClient = new WebChromeClient() {
@Override
public void onShowCustomView(View view, CustomViewCallback callback) {
super.onShowCustomView(view, callback);
if (view instanceof FrameLayout) {
FrameLayout frame = (FrameLayout) view;
if (frame.getFocusedChild() instanceof VideoView) {
VideoView video = (VideoView) frame.getFocusedChild();
frame.removeView(video);
video.start();
}
}
}
};
The maximum name size is 30 characters because of the data dictionary which allows the storage only for 30 bytes
Using a @Aaron Bertrand idea (FROM sys.all_columns
), this is something that will create 1000 records :
SELECT TOP (1000) LEFT(name,20) as names,
RIGHT(name,12) + '@' + LEFT(name,12) + '.com' as email,
sys.fn_sqlvarbasetostr(HASHBYTES('MD5', name)) as password
INTO db
FROM sys.all_columns
See SQLFIDDLE
put .gitignore in your main catalog
git status (you will see which files you can commit)
git add -A
git commit -m "message"
git push
Now (2020) NetBeans 11 does it automatically with the "Build" command (right click on the project's name and choose "Build")
Try to give it a postion: absolute;
Implemented with swift on Xcode 6.1
self.tableView.tableFooterView = UIView(frame: CGRectZero)
self.tableView.tableFooterView?.hidden = true
The second line of code does not cause any effect on presentation, you can use to check if is hidden or not.
Answer taken from this link Fail to hide empty cells in UITableView Swift
os.system('command')
returns a 16 bit number, which first 8 bits from left(lsb) talks about signal used by os to close the command, Next 8 bits talks about return code of command.
Refer my answer for more detail in What is the return value of os.system() in Python?
In my case I had to set MaxHeight
and replace IsEnabled="False"
by IsReadOnly="True"
It is possible. With vanilla Javascript, you can use the function below for reference.
function updateIframeBackground(iframeId) {
var x = document.getElementById(iframeId);
var y = (x.contentWindow || x.contentDocument);
if (y.document) y = y.document;
y.body.style.backgroundColor = "#2D2D2D";
}
https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_iframe_contentdocument
Use explicit injection. No other approach will allow you for instance to run tests in parallel in the same JVM.
Patterns that use anything classloader wide like static log binder or messing with environmental thinks like logback.XML are bust when it comes to testing.
Consider the parallelized tests I mention , or consider the case where you want to intercept logging of component A whose construction is hidden behind api B. This latter case is easy to deal with if you are using a dependency injected loggerfactory from the top, but not if you inject Logger as there no seam in this assembly at ILoggerFactory.getLogger.
And its not all about unit testing either. Sometimes we want integration tests to emit logging. Sometimes we don't. Someone's we want some of the integration testing logging to be selectively suppressed, eg for expected errors that would otherwise clutter the CI console and confuse. All easy if you inject ILoggerFactory from the top of your mainline (or whatever di framework you might use)
So...
Either inject a reporter as suggested or adopt a pattern of injecting the ILoggerFactory. By explicit ILoggerFactory injection rather than Logger you can support many access/intercept patterns and parallelization.
So if someone else stumbles upon this here is a JavaScript solution to this problem:
Step 1: Hook your HTML number input box to an onchange
event
myHTMLNumberInput.onchange = setTwoNumberDecimal;
or in the html code if you so prefer
<input type="number" onchange="setTwoNumberDecimal" min="0" max="10" step="0.25" value="0.00" />
Step 2: Write the setTwoDecimalPlace method
function setTwoNumberDecimal(event) {
this.value = parseFloat(this.value).toFixed(2);
}
By changing the '2' in toFixed
you can get more or less decimal places if you so prefer.
This worked for me in Laravel 5.8
return \Redirect::to('https://bla.com/?yken=KuQxIVTNRctA69VAL6lYMRo0');
Or instead of / you can use
use Redirect;
Use the +=
assignment operator:
for (var i = 0; i < myVar.length; i += 3) {
Technically, you can place any expression you'd like in the final expression of the for loop, but it is typically used to update the counter variable.
For more information about each step of the for loop, check out the MDN article.
Jon Skeet's answer is pretty much the solution in a nutshell, however if you are like me, you might want an explanation. The Subversion manual calls this a
From the man pages.
This form is called a 'cherry-pick' merge: '-r N:M' refers to the difference in the history of the source branch between revisions N and M.
A 'reverse range' can be used to undo changes. For example, when source and target refer to the same branch, a previously committed revision can be 'undone'. In a reverse range, N is greater than M in '-r N:M', or the '-c' option is used with a negative number: '-c -M' is equivalent to '-r M:'. Undoing changes like this is also known as performing a 'reverse merge'.
If the source is a file, then differences are applied to that file (useful for reverse-merging earlier changes). Otherwise, if the source is a directory, then the target defaults to '.'.
In normal usage the working copy should be up to date, at a single revision, with no local modifications and no switched subtrees.
Example:
svn merge -r 2983:289 path/to/file
This will replace the local copy[2983] (which, according to the quote above, should be in sync with the server--your responsibility) with the revision 289 from the server. The change happens locally, which means if you have a clean checkout, then the changes can be inspected before committing them.
As some suggested here, replacing utf8mb4
with utf8
will help you resolve the issue. IMHO, I used sed
to find and replace them to avoid losing data. In addition, opening a large file into any graphical editor is potential pain. My MySQL data grows up 2 GB. The ultimate command is
sed 's/utf8mb4_unicode_520_ci/utf8_unicode_ci/g' original-mysql-data.sql > updated-mysql-data.sql
sed 's/utf8mb4/utf8/g' original-mysql-data.sql > updated-mysql-data.sql
Done!
RandomStringUtils
from Apache commons-lang might help:
RandomStringUtils.randomAlphanumeric(17).toUpperCase()
2017 update: RandomStringUtils
has been deprecated, you should now use RandomStringGenerator.
![In Xcode 8 & above go to build setting -> search for custom flags ]1
In code
#if Live
print("Live")
#else
print("debug")
#endif
Mysql Developers Team announced that version 8.0 will have Common Table Expressions in MySQL (CTEs). So it will be possible to write queries like this:
WITH RECURSIVE my_cte AS
(
SELECT 1 AS n
UNION ALL
SELECT 1+n FROM my_cte WHERE n<10
)
SELECT * FROM my_cte;
+------+
| n |
+------+
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
| 7 |
| 8 |
| 9 |
| 10 |
+------+
10 rows in set (0,00 sec)
With modern Python Exceptions, you don't need to abuse .message
, or override .__str__()
or .__repr__()
or any of it. If all you want is an informative message when your exception is raised, do this:
class MyException(Exception):
pass
raise MyException("My hovercraft is full of eels")
That will give a traceback ending with MyException: My hovercraft is full of eels
.
If you want more flexibility from the exception, you could pass a dictionary as the argument:
raise MyException({"message":"My hovercraft is full of animals", "animal":"eels"})
However, to get at those details in an except
block is a bit more complicated. The details are stored in the args
attribute, which is a list. You would need to do something like this:
try:
raise MyException({"message":"My hovercraft is full of animals", "animal":"eels"})
except MyException as e:
details = e.args[0]
print(details["animal"])
It is still possible to pass in multiple items to the exception and access them via tuple indexes, but this is highly discouraged (and was even intended for deprecation a while back). If you do need more than a single piece of information and the above method is not sufficient for you, then you should subclass Exception
as described in the tutorial.
class MyError(Exception):
def __init__(self, message, animal):
self.message = message
self.animal = animal
def __str__(self):
return self.message
I notice others have given the non-lambda syntax so just to have this complete I'll put in the lambda syntax equivalent:
Non-lambda (as per James's post):
var name = from i in DataContext.MyTable
where i.ID == 0
select i.Name
Equivalent lambda syntax:
var name = DataContext.MyTable.Where(i => i.ID == 0)
.Select(i => new { Name = i.Name });
There's not really much practical difference, just personal opinion on which you prefer.
When you are using ui-router, you should not use ng-controller anywhere. Your controllers are automatically instantiated for a ui-view when their appropriate states are activated.
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"> </script>
<script>
$(function() {
var people = [];
$.getJSON('people.json', function(data) {
$.each(data.person, function(i, f) {
var tblRow = "<tr>" + "<td>" + f.firstName + "</td>" +
"<td>" + f.lastName + "</td>" + "<td>" + f.job + "</td>" + "<td>" + f.roll + "</td>" + "</tr>"
$(tblRow).appendTo("#userdata tbody");
});
});
});
</script>
</head>
<body>
<div class="wrapper">
<div class="profile">
<table id= "userdata" border="2">
<thead>
<th>First Name</th>
<th>Last Name</th>
<th>Email Address</th>
<th>City</th>
</thead>
<tbody>
</tbody>
</table>
</div>
</div>
</body>
</html>
My JSON
file:
{
"person": [
{
"firstName": "Clark",
"lastName": "Kent",
"job": "Reporter",
"roll": 20
},
{
"firstName": "Bruce",
"lastName": "Wayne",
"job": "Playboy",
"roll": 30
},
{
"firstName": "Peter",
"lastName": "Parker",
"job": "Photographer",
"roll": 40
}
]
}
I succeeded in integrating a JSON
file to HTML
table after working a day on it!!!
The problem is that your PATH does not include the location of the node executable.
You can likely run node as "/usr/local/bin/node
".
You can add that location to your path by running the following command to add a single line to your bashrc file:
echo 'export PATH=$PATH:/usr/local/bin' >> $HOME/.bashrc
Checking for length is a good answer, but you could also account for an "empty" string that is also only whitespace. Not "technically" empty, but if you care to check:
package main
import (
"fmt"
"strings"
)
func main() {
stringOne := "merpflakes"
stringTwo := " "
stringThree := ""
if len(strings.TrimSpace(stringOne)) == 0 {
fmt.Println("String is empty!")
}
if len(strings.TrimSpace(stringTwo)) == 0 {
fmt.Println("String two is empty!")
}
if len(stringTwo) == 0 {
fmt.Println("String two is still empty!")
}
if len(strings.TrimSpace(stringThree)) == 0 {
fmt.Println("String three is empty!")
}
}
Set oShell = CreateObject ("WScript.Shell")
oShell.run "cmd.exe /C copy ""S:Claims\Sound.wav"" ""C:\WINDOWS\Media\Sound.wav"" "
After trying several things, this worked for me:
With addresses other than 0.0.0.0
I had no success.
You should look at the toggle
function found on jQuery. This will allow you to specify an easing method to define how the toggle works.
slideToggle
will only slide up and down, not left/right if that's what you are looking for.
If you need the class to be toggled as well you can deifine that in the toggle
function with a:
$(this).closest('article').toggle('slow', function() {
$(this).toggleClass('expanded');
});
You can do it like this:
In your main view controller:
func showModal() {
let modalViewController = ModalViewController()
modalViewController.modalPresentationStyle = .overCurrentContext
presentViewController(modalViewController, animated: true, completion: nil)
}
In your modal view controller:
class ModalViewController: UIViewController {
override func viewDidLoad() {
view.backgroundColor = UIColor.clearColor()
view.opaque = false
}
}
If you are working with a storyboard:
Just add a Storyboard Segue with Kind
set to Present Modally
to your modal view controller and on this view controller set the following values:
As Crashalot pointed out in his comment: Make sure the segue only uses Default
for both Presentation
and Transition
. Using Current Context
for Presentation
makes the modal turn black instead of remaining transparent.
You can use like this
let nsRange = NSRange(location: someInt, length: someInt)
as in
let myNSString = bigTOTPCode as NSString //12345678
let firstDigit = myNSString.substringWithRange(NSRange(location: 0, length: 1)) //1
let secondDigit = myNSString.substringWithRange(NSRange(location: 1, length: 1)) //2
let thirdDigit = myNSString.substringWithRange(NSRange(location: 2, length: 4)) //3456
Modern Django have self template tag filesizeformat
:
Formats the value like a human-readable
file size (i.e. '13 KB', '4.1 MB', '102 bytes', etc.).
For example:
{{ value|filesizeformat }}
If value is 123456789, the output would be 117.7 MB.
More info: https://docs.djangoproject.com/en/1.10/ref/templates/builtins/#filesizeformat
Try this:
> data[match(as.character(data$Code), selected, nomatch = FALSE), ]
Code Value
1 A 1
2 B 2
1.1 A 1
1.2 A 1
With FluidXML you can generate your XML very easly.
$tracks = fluidxml('xml');
$tracks->times(8, function ($i) {
$this->add([
'track' => [
'path' => "song{$i}.mp3",
'title' => "Track {$i} - Track Title"
]
]);
});
To overwrite one file's content to another file. use cat eg.
echo "this is foo" > foobar.txt
cat foobar.txt
echo "this is bar" > bar.txt
cat bar.txt
Now to overwrite foobar we can use a cat command as below
cat bar.txt >> foobar.txt
cat foobar.txt
To extract the key and cert from a pem file:
openssl pkey -in foo.pem -out foo.key
Another method of extracting the key...
openssl rsa -in foo.pem -out foo.key
openssl crl2pkcs7 -nocrl -certfile foo.pem | openssl pkcs7 -print_certs -out foo.cert
openssl x509 -in foo.pem -outform DER -out first-cert.der
This applies to "IntelliJ IDEA-2019.2.4" on Mac.
I came across the situation where I met a condition that broke the loop, however the code after the .each() function still executed. I then set a flag to "true" with an immediate check for the flag after the .each() function to ensure the code that followed was not executed.
$('.groupName').each(function() {
if($(this).text() == groupname){
alert('This group already exists');
breakOut = true;
return false;
}
});
if(breakOut) {
breakOut = false;
return false;
}
sub domain is part of the domain, it's like subletting a room of an apartment. A records has to be setup on the dns for the domain e.g
mydomain.com has IP 123.456.789.999 and hosted with Godaddy. Now to get the sub domain
anothersite.mydomain.com
of which the site is actually on another server then
login to Godaddy and add an A record dnsimple anothersite.mydomain.com and point the IP to the other server 98.22.11.11
And that's it.
None of the solutions worked for me accept from using a timeout. This is because I was using a template that was dynamically being created during the postLink.
Note however, there can be a timeout of '0' as the timeout adds the function being called to the browser's queue which will occur after the angular rendering engine as this is already in the queue.
Refer to this: http://blog.brunoscopelliti.com/run-a-directive-after-the-dom-has-finished-rendering
I faced a similar problem, on my Windows computer, please do check that you have set the Environment Variables correctly.
To check that Environment variable is set correctly:
Open cmd.exe
Type Python and press return
(a) If it outputs the version of python then the environment variables are set correctly.
(b) If it outputs "no such program or file name" then your environment variable are not set correctly.
To set environment variable:
If you have correct variables already set; then you are calling the file inside the python interpreter.
The big thing about SP_EXECUTESQL is that it allows you to create parameterized queries which is very good if you care about SQL injection.
You should check the value of your line of code like adding checking length of it.
if(len(a['Names'].str.contains('Mel'))>0):
print("Name Present")
Use
Example:
ps-of()
{
ps u `pidof "$@"`
}
$ ps-of firefox
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
const 18464 5.9 9.4 1190224 372496 ? Sl 11:28 0:33 /usr/lib/firefox/firefox
$ alias ps-mem="ps xu --sort %mem | sed -e :a -e '1p;\$q;N;6,\$D;ba'"
$ ps-mem
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
const 3656 0.0 0.4 565728 18648 ? Sl Nov21 0:56 /usr/bin/python /usr/lib/ubuntuone-client/ubuntuone-syncdaemon
const 11361 0.3 0.5 1054156 20372 ? Sl Nov25 43:50 /usr/bin/python /usr/bin/ubuntuone-control-panel-qt
const 3402 0.0 0.5 1415848 23328 ? Sl Nov21 1:16 nautilus -n
const 3577 2.3 2.0 1534020 79844 ? Sl Nov21 410:02 konsole
const 18464 6.6 12.7 1317832 501580 ? Sl 11:28 1:34 /usr/lib/firefox/firefox
$ ps h -o pmem -C firefox
12.7
Firstly, as @l33tnerd said, f.close
should be outside the for loop.
Secondly, you are only calling readline
once, before the loop. That only reads the first line. The trick is that in Python, files act as iterators, so you can iterate over the file without having to call any methods on it, and that will give you one line per iteration:
if data.find('!masters') != -1:
f = open('masters.txt')
for line in f:
print line,
sck.send('PRIVMSG ' + chan + " " + line)
f.close()
Finally, you were referring to the variable lines
inside the loop; I assume you meant to refer to line
.
Edit: Oh and you need to indent the contents of the if
statement.
dir(instance)
# or (same value)
instance.__dir__()
# or
instance.__dict__
Then you can test what type is with type()
or if is a method with callable()
.
I had a similar issue which i solved by making two changes
added below entry in application.yaml file
spring:
jackson:
serialization.write_dates_as_timestamps: false
add below two annotations in pojo
sample example
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
public class Customer {
//your fields ...
@JsonDeserialize(using = LocalDateDeserializer.class)
@JsonSerialize(using = LocalDateSerializer.class)
protected LocalDate birthdate;
}
then the following json requests worked for me
{
"birthdate": "2019-11-28"
}
{
"birthdate":[2019,11,18]
}
Hope it helps!!
I had the same problem after upgrading to Ubuntu 14.10. I found this link which describes the steps to be followed in order to apply the patch. It takes a while since you have to start all over again: downloading, building, installing... but it worked for me! Sorry I'm not an expert and I can't provide further details.
Here are the steps described in the link above:
If you want to patch and build mysql-workbench yourself, get the source from for 6.2.3. From the directory you downloaded it to, do:
wget 'http://dev.mysql.com/get/Downloads/MySQLGUITools/mysql-workbench-community-6.2.3-src.tar.gz'
tar xvf mysql-workbench-community-6.2.3-src.tar.gz && cd mysql-workbench-community-6.2.3-src
wget -O patch-glib.diff 'http://bugs.mysql.com/file.php?id=21874&bug_id=74147'
patch -p0 < patch-glib.diff
sudo apt-get build-dep mysql-workbench
sudo apt-get install libgdal-dev
cd build
cmake .. -DBUILD_CONFIG=mysql_release
make
sudo make install
Hope this can be helpful.
You need convert list
to numpy array
and then reshape
:
df = pd.DataFrame(np.array(my_list).reshape(3,3), columns = list("abc"))
print (df)
a b c
0 1 2 3
1 4 5 6
2 7 8 9
I think you could do something like this
authorsList = (from a in authorsList
where !authors.Contains(a)
select a).ToList();
Although I think the solutions already given solve the problem in a more readable way.
Use cell arrays. This has an advantage over 3D arrays in that it does not require a contiguous memory space to store all the matrices. In fact, each matrix can be stored in a different space in memory, which will save you from Out-of-Memory errors if your free memory is fragmented. Here is a sample function to create your matrices in a cell array:
function result = createArrays(nArrays, arraySize)
result = cell(1, nArrays);
for i = 1 : nArrays
result{i} = zeros(arraySize);
end
end
To use it:
myArray = createArrays(requiredNumberOfArrays, [500 800]);
And to access your elements:
myArray{1}(2,3) = 10;
If you can't know the number of matrices in advance, you could simply use MATLAB's dynamic indexing to make the array as large as you need. The performance overhead will be proportional to the size of the cell array, and is not affected by the size of the matrices themselves. For example:
myArray{1} = zeros(500, 800);
if twoRequired, myArray{2} = zeros(500, 800); end
According to: https://docs.npmjs.com/files/folders
- Local install (default): puts stuff in ./node_modules of the current package root.
- Global install (with -g): puts stuff in /usr/local or wherever node is installed.
- Install it locally if you're going to require() it.
- Install it globally if you're going to run it on the command line. -> If you need both, then install it in both places, or use npm link.
prefix Configuration
The prefix config defaults to the location where node is installed. On most systems, this is
/usr/local
. On windows, this is the exact location of the node.exe binary.
The docs might be a little outdated, but they explain why global installs can end up in different directories:
(dev) go|c:\srv> npm config ls -l | grep prefix
; prefix = "C:\\Program Files\\nodejs" (overridden)
prefix = "C:\\Users\\bjorn\\AppData\\Roaming\\npm"
Based on the other answers, it may seem like the override is now the default location on Windows, and that I may have installed my office version prior to this override being implemented.
This also suggests a solution for getting all team members to have globals stored in the same absolute path relative to their PC, i.e. (run as Administrator):
mkdir %PROGRAMDATA%\npm
setx PATH "%PROGRAMDATA%\npm;%PATH%" /M
npm config set prefix %PROGRAMDATA%\npm
open a new cmd.exe window and reinstall all global packages.
Explanation (by lineno.):
setx .. /M
to set the
system path (under HKEY_LOCAL_MACHINE). This is what requires you to run
this in a shell with administrator permissions.npm
to use this new path. (Note: folder isn't visible in %PATH% in
this shell, so you must open a new window).Environment.NewLine
is the most ".NET" way of getting the character, it will also emit a carriage return and line feed on Windows and just a carriage return in Unix if this is a concern for you.
However, you can also use the VB6 style vbCrLf
or vbCr
, giving a carriage return and line feed or just a carriage return respectively.
TortoiseSVN always prompts for username. (unless you tell it not to)
Just put it between center tags:
<center>><Your text here>></center>
LATE EDIT: Starting with Java 8 you should use neither java.util.Date
nor java.sql.Date
if you can at all avoid it, and instead prefer using the java.time
package (based on Joda) rather than anything else. If you're not on Java 8, here's the original response:
java.sql.Date
- when you call methods/constructors of libraries that use it (like JDBC). Not otherwise. You don't want to introduce dependencies to the database libraries for applications/modules that don't explicitly deal with JDBC.
java.util.Date
- when using libraries that use it. Otherwise, as little as possible, for several reasons:
It's mutable, which means you have to make a defensive copy of it every time you pass it to or return it from a method.
It doesn't handle dates very well, which backwards people like yours truly, think date handling classes should.
Now, because j.u.D doesn't do it's job very well, the ghastly Calendar
classes were introduced. They are also mutable, and awful to work with, and should be avoided if you don't have any choice.
There are better alternatives, like the Joda Time API (which might even make it into Java 7 and become the new official date handling API - a quick search says it won't).
If you feel it's overkill to introduce a new dependency like Joda, long
s aren't all that bad to use for timestamp fields in objects, although I myself usually wrap them in j.u.D when passing them around, for type safety and as documentation.
//for normal state:
btnSecurite.setTitle("TextHear", for: .normal)
Visual Studio's Error List pane only shows you the first line of the error. Invoke View
>Output
and I bet you'll see something like:
c:\path\to\your\code.cpp(42): error C2259: 'AmbientOccluder' : cannot instantiate abstract class
due to following members:
'ULONG MysteryUnimplementedMethod(void)' : is abstract
c:\path\to\some\include.h(8) : see declaration of 'MysteryUnimplementedMethod'