You can use :
for( int i = 0 ; i < listField.size(); i++ ) {
i < listField.size() - 1 ? request.append("?,") : request.append("?");
}
Then :
int i = 1;
for (String field : listField) {
statement.setString(i++, field);
}
Exemple :
List<String> listField = new ArrayList<String>();
listField.add("test1");
listField.add("test2");
listField.add("test3");
StringBuilder request = new StringBuilder("SELECT * FROM TABLE WHERE FIELD IN (");
for( int i = 0 ; i < listField.size(); i++ ) {
request = i < (listField.size() - 1) ? request.append("?,") : request.append("?");
}
DNAPreparedStatement statement = DNAPreparedStatement.newInstance(connection, request.toString);
int i = 1;
for (String field : listField) {
statement.setString(i++, field);
}
ResultSet rs = statement.executeQuery();
I will go for Inner Join in this context. If I would have used contains, it would iterate 6 times despite if the fact that there are just one match.
var desiredNames = new[] { "Pankaj", "Garg" };
var people = new[]
{
new { FirstName="Pankaj", Surname="Garg" },
new { FirstName="Marc", Surname="Gravell" },
new { FirstName="Jeff", Surname="Atwood" }
};
var records = (from p in people join filtered in desiredNames on p.FirstName equals filtered select p.FirstName).ToList();
Suppose I have two list objects.
List 1 List 2
1 12
2 7
3 8
4 98
5 9
6 10
7 6
Using Contains, it will search for each List 1 item in List 2 that means iteration will happen 49 times !!!
First, create a quick function that will split a delimited list of values into a table, like this:
CREATE FUNCTION dbo.udf_SplitVariable
(
@List varchar(8000),
@SplitOn varchar(5) = ','
)
RETURNS @RtnValue TABLE
(
Id INT IDENTITY(1,1),
Value VARCHAR(8000)
)
AS
BEGIN
--Account for ticks
SET @List = (REPLACE(@List, '''', ''))
--Account for 'emptynull'
IF LTRIM(RTRIM(@List)) = 'emptynull'
BEGIN
SET @List = ''
END
--Loop through all of the items in the string and add records for each item
WHILE (CHARINDEX(@SplitOn,@List)>0)
BEGIN
INSERT INTO @RtnValue (value)
SELECT Value = LTRIM(RTRIM(SUBSTRING(@List, 1, CHARINDEX(@SplitOn, @List)-1)))
SET @List = SUBSTRING(@List, CHARINDEX(@SplitOn,@List) + LEN(@SplitOn), LEN(@List))
END
INSERT INTO @RtnValue (Value)
SELECT Value = LTRIM(RTRIM(@List))
RETURN
END
Then call the function like this...
SELECT *
FROM A
LEFT OUTER JOIN udf_SplitVariable(@ExcludedList, ',') f ON A.Id = f.Value
WHERE f.Id IS NULL
This has worked really well on our project...
Of course, the opposite could also be done, if that was the case (though not your question).
SELECT *
FROM A
INNER JOIN udf_SplitVariable(@ExcludedList, ',') f ON A.Id = f.Value
And this really comes in handy when dealing with reports that have an optional multi-select parameter list. If the parameter is NULL you want all values selected, but if it has one or more values you want the report data filtered on those values. Then use SQL like this:
SELECT *
FROM A
INNER JOIN udf_SplitVariable(@ExcludedList, ',') f ON A.Id = f.Value OR @ExcludeList IS NULL
This way, if @ExcludeList is a NULL value, the OR clause in the join becomes a switch that turns off filtering on this value. Very handy...
An
in
statement will be parsed identically tofield=val1 or field=val2 or field=val3
. Putting a null in there will boil down tofield=null
which won't work.
I would do this for clairity
SELECT *
FROM tbl_name
WHERE
(id_field IN ('value1', 'value2', 'value3') OR id_field IS NULL)
Where do you get the list of ids from in the first place? Since they are IDs in your database, did they come from some previous query?
When I have seen this in the past it has been because:-
I think there may be better ways to rework this code that just getting this SQL statement to work. If you provide more details you might get some ideas.
Just wanted to share my solution using sqlalchemy and pandas in python 3. Perhaps, one would find it useful.
import sqlalchemy as sa
import pandas as pd
engine = sa.create_engine("postgresql://postgres:my_password@my_host:my_port/my_db")
values = [val1,val2,val3]
query = sa.text("""
SELECT *
FROM my_table
WHERE col1 IN :values;
""")
query = query.bindparams(values=tuple(values))
df = pd.read_sql(query, engine)
My workaround is:
create or replace type split_tbl as table of varchar(32767);
/
create or replace function split
(
p_list varchar2,
p_del varchar2 := ','
) return split_tbl pipelined
is
l_idx pls_integer;
l_list varchar2(32767) := p_list;
l_value varchar2(32767);
begin
loop
l_idx := instr(l_list,p_del);
if l_idx > 0 then
pipe row(substr(l_list,1,l_idx-1));
l_list := substr(l_list,l_idx+length(p_del));
else
pipe row(l_list);
exit;
end if;
end loop;
return;
end split;
/
Now you can use one variable to obtain some values in a table:
select * from table(split('one,two,three'))
one
two
three
select * from TABLE1 where COL1 in (select * from table(split('value1,value2')))
value1 AAA
value2 BBB
So, the prepared statement could be:
"select * from TABLE where COL in (select * from table(split(?)))"
Regards,
Javier Ibanez
iOS 8 users and above, please include this in App delegate to make it work.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
if ([UIApplication instancesRespondToSelector:@selector(registerUserNotificationSettings:)])
{
[application registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
}
return YES;
}
And then adding this lines of code would help,
- (void)applicationDidEnterBackground:(UIApplication *)application
{
UILocalNotification *notification = [[UILocalNotification alloc]init];
notification.repeatInterval = NSDayCalendarUnit;
[notification setAlertBody:@"Hello world"];
[notification setFireDate:[NSDate dateWithTimeIntervalSinceNow:1]];
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
[application setScheduledLocalNotifications:[NSArray arrayWithObject:notification]];
}
ArrayList<String> list = new ArrayList<String>();
list.add("blah");
list.add("bleh");
JSONArray jsArray = new JSONArray(list);
This is only an example using a string arraylist
your query can go as follows:
$query = "INSERT INTO data (notes, id, filesUploaded, lat, lng, intLat, intLng)
VALUES ('$notes', '$id', TRIM('$imageUploaded'), '$lat', '$lng', '" . ($lat == '')?NULL:$lat . "', '" . ($long == '')?NULL:$long . "')";
mysql_query($query);
You can find a whole bunch of Linq examples in visual studio.
Just select Help -> Samples
, and then unzip the Linq samples.
Open the linq samples solution and open the LinqSamples.cs of the SampleQueries project.
The answer you are looking for is in method Linq14:
int[] numbersA = { 0, 2, 4, 5, 6, 8, 9 };
int[] numbersB = { 1, 3, 5, 7, 8 };
var pairs =
from a in numbersA
from b in numbersB
where a < b
select new {a, b};
(Explanation in more details can be found in an archived Microsoft KB article.)
Three things to know:
%1
, %2
, ...Two percent signs with any characters in between them are interpreted as a variable:
echo %myvar%
%%f
Why's that?
For example, if we execute your (simplified) command line
FOR /f %f in ('dir /b .') DO somecommand %f
in a batch file, rule 2 would try to interpret
%f in ('dir /b .') DO somecommand %
as a variable. In order to prevent that, you have to apply rule 3 and escape the %
with an second %
:
FOR /f %%f in ('dir /b .') DO somecommand %%f
I made a simple (stupid or not) bash script, that extracts the longs from the adb shell, converts them to timestamps and shows it in red.
echo "Please set a search filter"
read search
adb shell dumpsys alarm | grep $search | (while read i; do echo $i; _DT=$(echo $i | grep -Eo 'when\s+([0-9]{10})' | tr -d '[[:alpha:][:space:]]'); if [ $_DT ]; then echo -e "\e[31m$(date -d @$_DT)\e[0m"; fi; done;)
try it ;)
Using the sheet codename was the answer I needed too to stop a series of macros falling over - ccampj's answer above mirrors this solution (with screen pics)
From: https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty
Object.defineProperty(obj, prop, descriptor)
You can either add it to all your objects:
Object.defineProperty(Object.prototype, "length", {
enumerable: false,
get: function() {
return Object.keys(this).length;
}
});
Or a single object:
var myObj = {};
Object.defineProperty(myObj, "length", {
enumerable: false,
get: function() {
return Object.keys(this).length;
}
});
Example:
var myObj = {};
myObj.name = "John Doe";
myObj.email = "[email protected]";
myObj.length; //output: 2
Added that way, it won't be displayed in for..in loops:
for(var i in myObj) {
console.log(i + ":" + myObj[i]);
}
Output:
name:John Doe
email:[email protected]
Note: it does not work in < IE9 browsers.
I find the following setup the easiest.
Use the default config file loading mechanism of DispatcherServlet:
The framework will, on initialization of a DispatcherServlet, look for a file named [servlet-name]-servlet.xml in the WEB-INF directory of your web application and create the beans defined there (overriding the definitions of any beans defined with the same name in the global scope).
In your case, simply create a file intrafest-servlet.xml
in the WEB-INF
dir and don't need to specify anything specific information in web.xml
.
In intrafest-servlet.xml
file you can use import to compose your XML configuration.
<beans>
<bean id="bean1" class="..."/>
<bean id="bean2" class="..."/>
<import resource="foo-services.xml"/>
<import resource="foo-persistence.xml"/>
</beans>
Note that the Spring team actually prefers to load multiple config files when creating the (Web)ApplicationContext. If you still want to do it this way, I think you don't need to specify both context parameters (context-param
) and servlet initialization parameters (init-param
). One of the two will do. You can also use commas to specify multiple config locations.
Starting in NumPy version 1.10, we have the method stack. It can stack arrays of any dimension (all equal):
# List of arrays.
L = [np.random.randn(5,4,2,5,1,2) for i in range(10)]
# Stack them using axis=0.
M = np.stack(L)
M.shape # == (10,5,4,2,5,1,2)
np.all(M == L) # == True
M = np.stack(L, axis=1)
M.shape # == (5,10,4,2,5,1,2)
np.all(M == L) # == False (Don't Panic)
# This are all true
np.all(M[:,0,:] == L[0]) # == True
all(np.all(M[:,i,:] == L[i]) for i in range(10)) # == True
Enjoy,
alter table table_name change old_col_name new_col_name new_col_type;
Here is the example
hive> alter table test change userVisit userVisit2 STRING;
OK
Time taken: 0.26 seconds
hive> describe test;
OK
uservisit2 string
category string
uuid string
Time taken: 0.213 seconds, Fetched: 3 row(s)
Lessons to learn from this:
1) Guid is a value type, not a reference type.
2) Calling the default constructor new S()
on any value type always gives you back the all-zero form of that value type, whatever it is. It is logically the same as default(S)
.
Since it is a numeric operation, we should be converting it to numeric form first. This operation cannot take place if the data is in factor data type.
Check the data type of the columns using str()
.
min(as.numeric(data[,2]))
The javadocs for Scanner answer your question
A Scanner breaks its input into tokens using a delimiter pattern, which by default matches whitespace.
You might change the default whitespace pattern the Scanner is using by doing something like
Scanner s = new Scanner();
s.useDelimiter("\n");
You enter the
if (!(cin >> input_var))
statement if an error occurs when taking the input from cin. If an error occurs then an error flag is set and future attempts to get input will fail. That's why you need
cin.clear();
to get rid of the error flag. Also, the input which failed will be sitting in what I assume is some sort of buffer. When you try to get input again, it will read the same input in the buffer and it will fail again. That's why you need
cin.ignore(10000,'\n');
It takes out 10000 characters from the buffer but stops if it encounters a newline (\n). The 10000 is just a generic large value.
Here's one slight alteration to the answers of a query that creates the table upon execution (i.e. you don't have to create the table first):
SELECT * INTO #Temp
FROM (
select OptionNo, OptionName from Options where OptionActive = 1
) as X
With some HTML changes, you can absolutely achieve this with CSS:
Lorem ipsum dolor sit amet
<p id="textarea">
<!-- This is where I want to additional text-->
All that delicious text is in here!
</p>
<!-- the show/hide controls inside of the following
list, for ease of selecting with CSS -->
<ul class="controls">
<li class="show"><a href="#textarea">Show</a></li>
<li class="hide"><a href="#">Hide</a></li>
</ul>
<p>Here is some more text</p>
Coupled with the CSS:
#textarea {
display: none; /* hidden by default */
}
#textarea:target {
display: block; /* shown when a link targeting this id is clicked */
}
#textarea + ul.controls {
list-style-type: none; /* aesthetics only, adjust to taste, irrelevant to demo */
}
/* hiding the hide link when the #textarea is not targeted,
hiding the show link when it is selected: */
#textarea + ul.controls .hide,
#textarea:target + ul.controls .show {
display: none;
}
/* Showing the hide link when the #textarea is targeted,
showing the show link when it's not: */
#textarea:target + ul.controls .hide,
#textarea + ul.controls .show {
display: inline-block;
}
Or, you could use a label
and an input
of type="checkbox"
:
Lorem ipsum dolor sit amet
<input id="textAreaToggle" type="checkbox" />
<p id="textarea">
<!-- This is where I want to additional text-->
All that delicious text is in here!
</p>
<label for="textAreaToggle">textarea</label>
<p>Here is some more text</p>
With the CSS:
#textarea {
/* hide by default: */
display: none;
}
/* when the checkbox is checked, show the neighbouring #textarea element: */
#textAreaToggle:checked + #textarea {
display: block;
}
/* position the checkbox off-screen: */
input[type="checkbox"] {
position: absolute;
left: -1000px;
}
/* Aesthetics only, adjust to taste: */
label {
display: block;
}
/* when the checkbox is unchecked (its default state) show the text
'Show ' in the label element: */
#textAreaToggle + #textarea + label::before {
content: 'Show ';
}
/* when the checkbox is checked 'Hide ' in the label element; the
general-sibling combinator '~' is required for a bug in Chrome: */
#textAreaToggle:checked ~ #textarea + label::before {
content: 'Hide ';
}
If you didnt know that mojb
is of type MyClass
, then how can you create that variable?
If MyClass is an interface type, or a super type, then there is no need to do a cast.
I have a more general answer; but I believe it is useful for counting the columns for all tables in a DB:
SELECT table_name, count(*)
FROM information_schema.columns
GROUP BY table_name;
If you use XHTML, for some reason, note that XHTML 1.0 C 4 says: “Use external scripts if your script uses < or & or ]]> or --.” That is, don’t embed script code inside a script
element but put it into a separate JavaScript file and refer to it with <script src="foo.js"></script>
.
Yes, it is valid to use the anchor tag without a href
attribute.
If the
a
element has nohref
attribute, then the element represents a placeholder for where a link might otherwise have been placed, if it had been relevant, consisting of just the element's contents.
Yes, you can use class
and other attributes, but you can not use target
, download
, rel
, hreflang
, and type
.
The
target
,download
,rel
,hreflang
, andtype
attributes must be omitted if the href attribute is not present.
As for the "Should I?" part, see the first citation: "where a link might otherwise have been placed if it had been relevant". So I would ask "If I had no JavaScript, would I use this tag as a link?". If the answer is yes, then yes, you should use <a>
without href
. If no, then I would still use it, because productivity is more important for me than edge case semantics, but this is just my personal opinion.
Additionally, you should watch out for different behaviour and styling (e.g. no underline, no pointer cursor, not a :link
).
Source: W3C HTML5 Recommendation
To find first element in a sequence seq
that matches a predicate
:
next(x for x in seq if predicate(x))
Or (itertools.ifilter
on Python 2):
next(filter(predicate, seq))
It raises StopIteration
if there is none.
To return None
if there is no such element:
next((x for x in seq if predicate(x)), None)
Or:
next(filter(predicate, seq), None)
If you create a new (not yet implemented) function in NetBeans, then it generates a method body with the following statement:
throw new java.lang.UnsupportedOperationException("Not supported yet.");
Therefore, I recommend to use the UnsupportedOperationException.
If you're debugging and just want to see the current stack trace, you can simply call:
There's no need to manually raise an exception just to catch it again.
For using dictionary object in typescript you can use interface as below:
interface Dictionary<T> {
[Key: string]: T;
}
and, use this for your class property type.
export class SearchParameters {
SearchFor: Dictionary<string> = {};
}
to use and initialize this class,
getUsers(): Observable<any> {
var searchParams = new SearchParameters();
searchParams.SearchFor['userId'] = '1';
searchParams.SearchFor['userName'] = 'xyz';
return this.http.post(searchParams, 'users/search')
.map(res => {
return res;
})
.catch(this.handleError.bind(this));
}
SELECT empno,
deptno,
sal,
RANK() OVER (PARTITION BY deptno ORDER BY sal) "rank"
FROM emp;
EMPNO DEPTNO SAL rank
---------- ---------- ---------- ----------
7934 10 1300 1
7782 10 2450 2
7839 10 5000 3
7369 20 800 1
7876 20 1100 2
7566 20 2975 3
7788 20 3000 4
7902 20 3000 4
7900 30 950 1
7654 30 1250 2
7521 30 1250 2
7844 30 1500 4
7499 30 1600 5
7698 30 2850 6
SELECT empno,
deptno,
sal,
DENSE_RANK() OVER (PARTITION BY deptno ORDER BY sal) "rank"
FROM emp;
EMPNO DEPTNO SAL rank
---------- ---------- ---------- ----------
7934 10 1300 1
7782 10 2450 2
7839 10 5000 3
7369 20 800 1
7876 20 1100 2
7566 20 2975 3
7788 20 3000 4
7902 20 3000 4
7900 30 950 1
7654 30 1250 2
7521 30 1250 2
7844 30 1500 3
7499 30 1600 4
7698 30 2850 5
Place your css in the following script and paste it into your CSS file.
@media screen and (-webkit-min-device-pixel-ratio:0) { your complete css style }
For example: @media screen and (-webkit-min-device-pixel-ratio:0) { container { margin-top: 120px;} }
Works like a charm.
The following code works more or less as one would expect a type-switch that only looks at the actual type (e.g. what is returned by GetType()
).
public static void TestTypeSwitch()
{
var ts = new TypeSwitch()
.Case((int x) => Console.WriteLine("int"))
.Case((bool x) => Console.WriteLine("bool"))
.Case((string x) => Console.WriteLine("string"));
ts.Switch(42);
ts.Switch(false);
ts.Switch("hello");
}
Here is the machinery required to make it work.
public class TypeSwitch
{
Dictionary<Type, Action<object>> matches = new Dictionary<Type, Action<object>>();
public TypeSwitch Case<T>(Action<T> action) { matches.Add(typeof(T), (x) => action((T)x)); return this; }
public void Switch(object x) { matches[x.GetType()](x); }
}
All the same.
sudo easy_install numpy
My Traceback
Searching for numpy
Best match: numpy 1.13.0
Adding numpy 1.13.0 to easy-install.pth file
Using /Library/Python/2.7/site-packages
Processing dependencies for numpy
I know this has been answered in many different ways, with extensions and lambda examples, but a combination of both for the simplest solution.
public static bool IsNumeric(this String s)
{
return s.All(Char.IsDigit);
}
or if you are using Visual Studio 2015 (C# 6.0 or greater) then
public static bool IsNumeric(this String s) => s.All(Char.IsDigit);
Awesome C#6 on one line. Of course this is limited because it just tests for only numeric characters.
To use, just have a string and call the method on it, such as:
bool IsaNumber = "123456".IsNumeric();
You can set it as a no title bar theme in the activity's xml in the AndroidManifest
<activity
android:name=".AnActivity"
android:label="@string/a_string"
android:theme="@android:style/Theme.NoTitleBar">
</activity>
Two ways.
i. You can put it in ApplicationController and add the filters in the controller
class ApplicationController < ActionController::Base def filter_method end end class FirstController < ApplicationController before_filter :filter_method end class SecondController < ApplicationController before_filter :filter_method end
But the problem here is that this method will be added to all the controllers since all of them extend from application controller
ii. Create a parent controller and define it there
class ParentController < ApplicationController def filter_method end end class FirstController < ParentController before_filter :filter_method end class SecondController < ParentController before_filter :filter_method end
I have named it as parent controller but you can come up with a name that fits your situation properly.
You can also define the filter method in a module and include it in the controllers where you need the filter
git log --grep=<pattern>
Limit the commits output to ones with log message that matches the
specified pattern (regular expression).
sns.boxplot() function returns Axes(matplotlib.axes.Axes) object. please refer the documentation you can add title using 'set' method as below:
sns.boxplot('Day', 'Count', data=gg).set(title='lalala')
you can also add other parameters like xlabel, ylabel to the set method.
sns.boxplot('Day', 'Count', data=gg).set(title='lalala', xlabel='its x_label', ylabel='its y_label')
There are some other methods as mentioned in the matplotlib.axes.Axes documentaion to add tile, legend and labels.
Here is the deepClone function which handles all primitive, array, object, function data types
function deepClone(obj){_x000D_
if(Array.isArray(obj)){_x000D_
var arr = [];_x000D_
for (var i = 0; i < obj.length; i++) {_x000D_
arr[i] = deepClone(obj[i]);_x000D_
}_x000D_
return arr;_x000D_
}_x000D_
_x000D_
if(typeof(obj) == "object"){_x000D_
var cloned = {};_x000D_
for(let key in obj){_x000D_
cloned[key] = deepClone(obj[key])_x000D_
}_x000D_
return cloned; _x000D_
}_x000D_
return obj;_x000D_
}_x000D_
_x000D_
console.log( deepClone(1) )_x000D_
_x000D_
console.log( deepClone('abc') )_x000D_
_x000D_
console.log( deepClone([1,2]) )_x000D_
_x000D_
console.log( deepClone({a: 'abc', b: 'def'}) )_x000D_
_x000D_
console.log( deepClone({_x000D_
a: 'a',_x000D_
num: 123,_x000D_
func: function(){'hello'},_x000D_
arr: [[1,2,3,[4,5]], 'def'],_x000D_
obj: {_x000D_
one: {_x000D_
two: {_x000D_
three: 3_x000D_
}_x000D_
}_x000D_
}_x000D_
}) )
_x000D_
This function creates a temporary form, then send data using jQuery :
function postToIframe(data,url,target){
$('body').append('<form action="'+url+'" method="post" target="'+target+'" id="postToIframe"></form>');
$.each(data,function(n,v){
$('#postToIframe').append('<input type="hidden" name="'+n+'" value="'+v+'" />');
});
$('#postToIframe').submit().remove();
}
target is the 'name' attr of the target iFrame, and data is a JS object :
data={last_name:'Smith',first_name:'John'}
Imagine the include as what it is: A copy & paste of the contents of the included PHP file which will then be interpreted. There is no scope change at all, so you can still access $someVar in the included file directly (even though you might consider a class based structure where you pass $someVar as a parameter or refer to a few global variables).
To see which ports are available on your machine run:
C:> netstat -an |find /i "listening"
Try wexpect, which is the windows alternative of pexpect.
import wexpect
p = wexpect.spawn('myprogram.exe')
p.stdout.readline('.') // regex pattern of any character
output_str = p.after()
Are you closing the connection to the WCF service in between requests? If you don't, you'll see this exact timeout (eventually).
In Eclipse Ganymede (3.4.0):
$DISPLAY is the standard way. That's how users communicate with programs about which X server to use, if any.
In order to access the data from a ReadableStream
you need to call one of the conversion methods (docs available here).
As an example:
fetch('https://jsonplaceholder.typicode.com/posts/1')
.then(function(response) {
// The response is a Response instance.
// You parse the data into a useable format using `.json()`
return response.json();
}).then(function(data) {
// `data` is the parsed version of the JSON returned from the above endpoint.
console.log(data); // { "userId": 1, "id": 1, "title": "...", "body": "..." }
});
EDIT: If your data return type is not JSON or you don't want JSON then use text()
As an example:
fetch('https://jsonplaceholder.typicode.com/posts/1')
.then(function(response) {
return response.text();
}).then(function(data) {
console.log(data); // this will be a string
});
Hope this helps clear things up.
Does this work without alternation?
^((part)1(, \22)?)?(part2)?$
or why not this?
^((part)1(, (\22))?)?(\4)?$
The first works for all conditions the second for all but part2
(using GNU sed 4.1.5)
To modify a global variable inside a function, you must use the global keyword.
When you try to do this without the line
global counter
inside of the definition of increment, a local variable named counter is created so as to keep you from mucking up the counter variable that the whole program may depend on.
Note that you only need to use global when you are modifying the variable; you could read counter from within increment without the need for the global statement.
Yes it will return null if it's not present you can try this below in the demo. Both will return true. The first elements exists the second doesn't.
Html
<div id="xx"></div>
Javascript:
if (document.getElementById('xx') !=null)
console.log('it exists!');
if (document.getElementById('xxThisisNotAnElementOnThePage') ==null)
console.log('does not exist!');
Complete working example in Kotlin, I have replaced my API keys with 1111...
val apiService = API.getInstance().retrofit.create(MyApiEndpointInterface::class.java)
val params = HashMap<String, String>()
params["q"] = "munich,de"
params["APPID"] = "11111111111111111"
val call = apiService.getWeather(params)
call.enqueue(object : Callback<WeatherResponse> {
override fun onFailure(call: Call<WeatherResponse>?, t: Throwable?) {
Log.e("Error:::","Error "+t!!.message)
}
override fun onResponse(call: Call<WeatherResponse>?, response: Response<WeatherResponse>?) {
if (response != null && response.isSuccessful && response.body() != null) {
Log.e("SUCCESS:::","Response "+ response.body()!!.main.temp)
temperature.setText(""+ response.body()!!.main.temp)
}
}
})
It's all about the linkage.
The previous answers provided good explainations about extern
.
But I want to add an important point.
You ask about extern
in C++ not in C and I don't know why there is no answer mentioning about the case when extern
comes with const
in C++.
In C++, a const
variable has internal linkage by default (not like C).
So this scenario will lead to linking error:
Source 1 :
const int global = 255; //wrong way to make a definition of global const variable in C++
Source 2 :
extern const int global; //declaration
It need to be like this:
Source 1 :
extern const int global = 255; //a definition of global const variable in C++
Source 2 :
extern const int global; //declaration
This should work for matches that might overlap:
public static void main(String[] args) {
String input = "aaaaaaaa";
String regex = "aa";
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(input);
int from = 0;
int count = 0;
while(matcher.find(from)) {
count++;
from = matcher.start() + 1;
}
System.out.println(count);
}
Cross browser compatible JS solution:
var e = document.getElementById('elem');_x000D_
var spin = false;_x000D_
_x000D_
var spinner = function(){_x000D_
e.classList.toggle('running', spin);_x000D_
if (spin) setTimeout(spinner, 2000);_x000D_
}_x000D_
_x000D_
e.onmouseover = function(){_x000D_
spin = true;_x000D_
spinner();_x000D_
};_x000D_
_x000D_
e.onmouseout = function(){_x000D_
spin = false;_x000D_
};
_x000D_
body { _x000D_
height:300px; _x000D_
}_x000D_
#elem {_x000D_
position:absolute;_x000D_
top:20%;_x000D_
left:20%;_x000D_
width:0; _x000D_
height:0;_x000D_
border-style: solid;_x000D_
border-width: 75px;_x000D_
border-color: red blue green orange;_x000D_
border-radius: 75px;_x000D_
}_x000D_
_x000D_
#elem.running {_x000D_
animation: spin 2s linear 0s infinite;_x000D_
}_x000D_
_x000D_
@keyframes spin { _x000D_
100% { transform: rotate(360deg); } _x000D_
}
_x000D_
<div id="elem"></div>
_x000D_
This worked for me :
Try deleting old listener using NETCA and then add new listener with same name.
When a JSF view (Facelets/JSP file) get built/restored, a JSF component tree will be produced. At that moment, the view build time, all binding
attributes are evaluated (along with id
attribtues and taghandlers like JSTL). When the JSF component needs to be created before being added to the component tree, JSF will check if the binding
attribute returns a precreated component (i.e. non-null
) and if so, then use it. If it's not precreated, then JSF will autocreate the component "the usual way" and invoke the setter behind binding
attribute with the autocreated component instance as argument.
In effects, it binds a reference of the component instance in the component tree to a scoped variable. This information is in no way visible in the generated HTML representation of the component itself. This information is in no means relevant to the generated HTML output anyway. When the form is submitted and the view is restored, the JSF component tree is just rebuilt from scratch and all binding
attributes will just be re-evaluated like described in above paragraph. After the component tree is recreated, JSF will restore the JSF view state into the component tree.
Important to know and understand is that the concrete component instances are effectively request scoped. They're newly created on every request and their properties are filled with values from JSF view state during restore view phase. So, if you bind the component to a property of a backing bean, then the backing bean should absolutely not be in a broader scope than the request scope. See also JSF 2.0 specitication chapter 3.1.5:
3.1.5 Component Bindings
...
Component bindings are often used in conjunction with JavaBeans that are dynamically instantiated via the Managed Bean Creation facility (see Section 5.8.1 “VariableResolver and the Default VariableResolver”). It is strongly recommend that application developers place managed beans that are pointed at by component binding expressions in “request” scope. This is because placing it in session or application scope would require thread-safety, since UIComponent instances depends on running inside of a single thread. There are also potentially negative impacts on memory management when placing a component binding in “session” scope.
Otherwise, component instances are shared among multiple requests, possibly resulting in "duplicate component ID" errors and "weird" behaviors because validators, converters and listeners declared in the view are re-attached to the existing component instance from previous request(s). The symptoms are clear: they are executed multiple times, one time more with each request within the same scope as the component is been bound to.
And, under heavy load (i.e. when multiple different HTTP requests (threads) access and manipulate the very same component instance at the same time), you may face sooner or later an application crash with e.g. Stuck thread at UIComponent.popComponentFromEL, or Java Threads at 100% CPU utilization using richfaces UIDataAdaptorBase and its internal HashMap, or even some "strange" IndexOutOfBoundsException
or ConcurrentModificationException
coming straight from JSF implementation source code while JSF is busy saving or restoring the view state (i.e. the stack trace indicates saveState()
or restoreState()
methods and like).
binding
on a bean property is bad practiceRegardless, using binding
this way, binding a whole component instance to a bean property, even on a request scoped bean, is in JSF 2.x a rather rare use case and generally not the best practice. It indicates a design smell. You normally declare components in the view side and bind their runtime attributes like value
, and perhaps others like styleClass
, disabled
, rendered
, etc, to normal bean properties. Then, you just manipulate exactly that bean property you want instead of grabbing the whole component and calling the setter method associated with the attribute.
In cases when a component needs to be "dynamically built" based on a static model, better is to use view build time tags like JSTL, if necessary in a tag file, instead of createComponent()
, new SomeComponent()
, getChildren().add()
and what not. See also How to refactor snippet of old JSP to some JSF equivalent?
Or, if a component needs to be "dynamically rendered" based on a dynamic model, then just use an iterator component (<ui:repeat>
, <h:dataTable>
, etc). See also How to dynamically add JSF components.
Composite components is a completely different story. It's completely legit to bind components inside a <cc:implementation>
to the backing component (i.e. the component identified by <cc:interface componentType>
. See also a.o. Split java.util.Date over two h:inputText fields representing hour and minute with f:convertDateTime and How to implement a dynamic list with a JSF 2.0 Composite Component?
binding
in local scopeHowever, sometimes you'd like to know about the state of a different component from inside a particular component, more than often in use cases related to action/value dependent validation. For that, the binding
attribute can be used, but not in combination with a bean property. You can just specify an in the local EL scope unique variable name in the binding
attribute like so binding="#{foo}"
and the component is during render response elsewhere in the same view directly as UIComponent
reference available by #{foo}
. Here are several related questions where such a solution is been used in the answer:
Use an EL expression to pass a component ID to a composite component in JSF
(and that's only from the last month...)
I'm coming from a SQL Server background also and spent the past 2 weeks figuring out how to run scripts like this in IBM Data Studio. Hope it helps.
CREATE VARIABLE v_lookupid INTEGER DEFAULT (4815162342); --where 4815162342 is your variable data
SELECT * FROM DB1.PERSON WHERE PERSON_ID = v_lookupid;
SELECT * FROM DB1.PERSON_DATA WHERE PERSON_ID = v_lookupid;
SELECT * FROM DB1.PERSON_HIST WHERE PERSON_ID = v_lookupid;
DROP VARIABLE v_lookupid;
You can use CSS:
p.capitalize {text-transform:capitalize;}
Based on Kamal Reddy's comment:
document.getElementById("myP").style.textTransform = "capitalize";
You can use this js code. Just change .post-thumb img
with your img
.
$('.post-thumb img').each(function(){ // Note: {.post-thumb img} is css selector of the image tag
var t = $(this),
s = 'url(' + t.attr('src') + ')',
p = t.parent(),
d = $('<div></div>');
t.hide();
p.append(d);
d.css({
'height' : 260, // Note: You can change it for your needs
'background-size' : 'cover',
'background-repeat' : 'no-repeat',
'background-position' : 'center',
'background-image' : s
});
});
According to the previous answers this could happen for several reasons. For me the problem was referencing two different Bootstrap links without knowing, so removing one solves the problem.
In my case I included this one:
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.5/css/bootstrap.min.css"
integrity="sha384-AysaV+vQoT3kOAXZkl02PThvDr8HYKPZhNT5h/CXfBThSRXQ6jW5DO2ekP5ViFdi" crossorigin="anonymous">
and another offline one that I have already in my laptop.
If your date is in the format of a string use the explode function
array explode ( string $delimiter , string $string [, int $limit ] )
//In the case of your code
$length = strrpos($oldDate," ");
$newDate = explode( "-" , substr($oldDate,$length));
$output = $newDate[2]."/".$newDate[1]."/".$newDate[0];
Hope the above works now
You can try this cool app available in play store called Html Page Source https://play.google.com/store/apps/details?id=com.scintillar.hps
Backgrounds jobs are expensive to setup and are not reusable. PowerShell MVP Oisin Grehan has a good example of PowerShell multi-threading.
(10/25/2010 site is down, but accessible via the Web Archive).
I'e used adapted Oisin script for use in a data loading routine here:
http://rsdd.codeplex.com/SourceControl/changeset/view/a6cd657ea2be#Invoke-RSDDThreaded.ps1
Single file:
String filePath = "/absolute/path/file1.txt";
String zipPath = "/absolute/path/output.zip";
try (ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipPath))) {
File fileToZip = new File(filePath);
zipOut.putNextEntry(new ZipEntry(fileToZip.getName()));
Files.copy(fileToZip.toPath(), zipOut);
}
Multiple files:
List<String> filePaths = Arrays.asList("/absolute/path/file1.txt", "/absolute/path/file2.txt");
String zipPath = "/absolute/path/output.zip";
try (ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipPath))) {
for (String filePath : filePaths) {
File fileToZip = new File(filePath);
zipOut.putNextEntry(new ZipEntry(fileToZip.getName()));
Files.copy(fileToZip.toPath(), zipOut);
}
}
I know this is an old question, I'd like to post my approach anyway. This way you don't have to handle the 0 trick that T. J. Crowder expained.
var keepGoing = true;
function myLoop() {
// ... Do something ...
if(keepGoing) {
setTimeout(myLoop, 1000);
}
}
function startLoop() {
keepGoing = true;
myLoop();
}
function stopLoop() {
keepGoing = false;
}
Action
is a Type of Delegate provided by the .NET framework. The Action
points to a method with no parameters and does not return a value.
() =>
is lambda expression syntax. Lambda expressions are not of Type Delegate
. Invoke requires Delegate
so Action
can be used to wrap the lambda expression and provide the expected Type
to Invoke()
Invoke
causes said Action
to execute on the thread that created the Control's window handle. Changing threads is often necessary to avoid Exceptions
. For example, if one tries to set the Rtf
property on a RichTextBox
when an Invoke is necessary, without first calling Invoke, then a Cross-thread operation not valid
exception will be thrown. Check Control.InvokeRequired
before calling Invoke.
BeginInvoke
is the Asynchronous version of Invoke
. Asynchronous means the thread will not block the caller as opposed to a synchronous call which is blocking.
You can open PDF in Google Docs Viewer by appending URL to:
http://docs.google.com/gview?embedded=true&url=<url of a supported doc>
This would open PDF in default browser or a WebView.
A list of supported formats is given here.
Try to use this variant:
<?php echo Yii::app()->createAbsoluteUrl('your_yii_application/?lg=pl', array('id'=>$model->id));?>
It is the easiest way, I guess.
you can do it simpler without jquery
location = "https://example.com/" + txt.value
function send() {_x000D_
location = "https://example.com/" + txt.value;_x000D_
}
_x000D_
<form id="abc">_x000D_
<input type="text" id="txt" />_x000D_
</form>_x000D_
_x000D_
<button onclick="send()">Send</button>
_x000D_
You can retrieve the contents of an iframe
first and then use jQuery
selectors against them as usual.
$("#iframe-id").contents().find("img").attr("style","width:100%;height:100%")
$("#iframe-id").contents().find("img").addClass("fancy-zoom")
$("#iframe-id").contents().find("img").onclick(function(){ zoomit($(this)); });
Good Luck!
Here is a use case for AtomicReference:
Consider this class that acts as a number range, and uses individual AtmomicInteger variables to maintain lower and upper number bounds.
public class NumberRange {
// INVARIANT: lower <= upper
private final AtomicInteger lower = new AtomicInteger(0);
private final AtomicInteger upper = new AtomicInteger(0);
public void setLower(int i) {
// Warning -- unsafe check-then-act
if (i > upper.get())
throw new IllegalArgumentException(
"can't set lower to " + i + " > upper");
lower.set(i);
}
public void setUpper(int i) {
// Warning -- unsafe check-then-act
if (i < lower.get())
throw new IllegalArgumentException(
"can't set upper to " + i + " < lower");
upper.set(i);
}
public boolean isInRange(int i) {
return (i >= lower.get() && i <= upper.get());
}
}
Both setLower and setUpper are check-then-act sequences, but they do not use sufficient locking to make them atomic. If the number range holds (0, 10), and one thread calls setLower(5) while another thread calls setUpper(4), with some unlucky timing both will pass the checks in the setters and both modifications will be applied. The result is that the range now holds (5, 4)an invalid state. So while the underlying AtomicIntegers are thread-safe, the composite class is not. This can be fixed by using a AtomicReference instead of using individual AtomicIntegers for upper and lower bounds.
public class CasNumberRange {
// Immutable
private static class IntPair {
final int lower; // Invariant: lower <= upper
final int upper;
private IntPair(int lower, int upper) {
this.lower = lower;
this.upper = upper;
}
}
private final AtomicReference<IntPair> values =
new AtomicReference<IntPair>(new IntPair(0, 0));
public int getLower() {
return values.get().lower;
}
public void setLower(int lower) {
while (true) {
IntPair oldv = values.get();
if (lower > oldv.upper)
throw new IllegalArgumentException(
"Can't set lower to " + lower + " > upper");
IntPair newv = new IntPair(lower, oldv.upper);
if (values.compareAndSet(oldv, newv))
return;
}
}
public int getUpper() {
return values.get().upper;
}
public void setUpper(int upper) {
while (true) {
IntPair oldv = values.get();
if (upper < oldv.lower)
throw new IllegalArgumentException(
"Can't set upper to " + upper + " < lower");
IntPair newv = new IntPair(oldv.lower, upper);
if (values.compareAndSet(oldv, newv))
return;
}
}
}
for linux... I use ctrl+pageUp or pageDown
Here html helper for you
public static SelectList IndividualNamesOrAll(this SelectList Object)
{
MedicalVarianceViewsDataContext LinqCtx = new MedicalVarianceViewsDataContext();
//not correct need individual view!
var IndividualsListBoxRaw = ( from x in LinqCtx.ViewIndividualsNames
orderby x.FullName
select x);
List<SelectListItem> items = new SelectList (
IndividualsListBoxRaw,
"First_Hospital_Case_Nbr",
"FullName"
).ToList();
items.Insert(0, (new SelectListItem { Text = "All Individuals",
Value = "0.0",
Selected = true }));
Object = new SelectList (items,"Value","Text");
return Object;
}
Take a look at "using WCF Services with PHP". It explains the basics of what you need.
As a theory summary:
WCF or Windows Communication Foundation is a technology that allow to define services abstracted from the way - the underlying communication method - they'll be invoked.
The idea is that you define a contract about what the service does and what the service offers and also define another contract about which communication method is used to actually consume the service, be it TCP, HTTP or SOAP.
You have the first part of the article here, explaining how to create a very basic WCF Service.
More resources:
Aslo take a look to NuSOAP. If you now NuSphere this is a toolkit to let you connect from PHP to an WCF service.
Late to the party, but I think this is actually the most elegant. Use the WORD JOINER Unicode character ⁠ on either side of your hyphen, or em dash, or any character.
So, like so:
⁠—⁠
This will join the symbol on both ends to its neighbors (without adding a space) and prevent line breaking.
In iOS7.0x the solution is a bit different. Here is what I came up with.
- (void)tableView:(UITableView *)tableView
willDisplayCell:(UITableViewCell *)cell
forRowAtIndexPath:(NSIndexPath *)indexPath
{
BOOL isFinishedLoadingTableView = [self isFinishedLoadingTableView:tableView
indexPath:indexPath];
if (isFinishedLoadingTableView) {
NSLog(@"end loading");
}
}
- (BOOL)isFinishedLoadingTableView:(UITableView *)tableView
indexPath:(NSIndexPath *)indexPath
{
// The reason we cannot just look for the last row is because
// in iOS7.0x the last row is updated before
// looping through all the visible rows in ascending order
// including the last row again. Strange but true.
NSArray * visibleRows = [tableView indexPathsForVisibleRows]; // did verify sorted ascending via logging
NSIndexPath *lastVisibleCellIndexPath = [visibleRows lastObject];
// For tableviews with multiple sections this will be more complicated.
BOOL isPreviousCallForPreviousCell =
self.previousDisplayedIndexPath.row + 1 == lastVisibleCellIndexPath.row;
BOOL isLastCell = [indexPath isEqual:lastVisibleCellIndexPath];
BOOL isFinishedLoadingTableView = isLastCell && isPreviousCallForPreviousCell;
self.previousDisplayedIndexPath = indexPath;
return isFinishedLoadingTableView;
}
From Python 3 documentation (the same holds for python 2.7):
Curly braces or the set() function can be used to create sets. Note: to create an empty set you have to use set(), not {}; the latter creates an empty dictionary, a data structure that we discuss in the next section.
in python 2.7:
>>> my_set = {'foo', 'bar', 'baz', 'baz', 'foo'}
>>> my_set
set(['bar', 'foo', 'baz'])
Be aware that {}
is also used for map
/dict
:
>>> m = {'a':2,3:'d'}
>>> m[3]
'd'
>>> m={}
>>> type(m)
<type 'dict'>
One can also use comprehensive syntax to initialize sets:
>>> a = {x for x in """didn't know about {} and sets """ if x not in 'set' }
>>> a
set(['a', ' ', 'b', 'd', "'", 'i', 'k', 'o', 'n', 'u', 'w', '{', '}'])
DDL: Change the schema
DML: Change the data
Seems specific to MySQL limitations (rails's source code)
Short answer: Fabulous.
Long answer: Something like....
static SomeSingleton *instance = NULL;
@implementation SomeSingleton
+ (id) instance {
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
if (instance == NULL){
instance = [[super allocWithZone:NULL] init];
}
});
return instance;
}
+ (id) allocWithZone:(NSZone *)paramZone {
return [[self instance] retain];
}
- (id) copyWithZone:(NSZone *)paramZone {
return self;
}
- (id) autorelease {
return self;
}
- (NSUInteger) retainCount {
return NSUIntegerMax;
}
- (id) retain {
return self;
}
@end
Be sure to read the dispatch/once.h header to understand what's going on. In this case the header comments are more applicable than the docs or man page.
my_list = ['foo', 'fob', 'faz', 'funk']
string = 'bar'
my_new_list = [x + string for x in my_list]
print my_new_list
This will print:
['foobar', 'fobbar', 'fazbar', 'funkbar']
Internally, .bind
maps directly to .on
in the current version of jQuery. (The same goes for .live
.) So there is a tiny but practically insignificant performance hit if you use .bind
instead.
However, .bind
may be removed from future versions at any time. There is no reason to keep using .bind
and every reason to prefer .on
instead.
I tried another way
Say the table has values
1 M510
2 M615
3 M515
4 M612
5 M510MM
6 M615NN
7 M515OO
8 M612PP
9 A
10 B
11 C
12 D
Here cols 1 to 8 are valid while the rest of them are invalid
SELECT COL_VAL
FROM SO_LIKE_TABLE SLT
WHERE (SELECT DECODE(SUM(CASE
WHEN INSTR(SLT.COL_VAL, COLUMN_VALUE) > 0 THEN
1
ELSE
0
END),
0,
'FALSE',
'TRUE')
FROM TABLE(SYS.DBMS_DEBUG_VC2COLl('M510', 'M615', 'M515', 'M612'))) =
'TRUE'
What I have done is using the INSTR function, I have tried to find is the value in table matches with any of the values as input. In case it does, it will return it's index, i.e. greater than ZERO. In case the table's value does not match with any of the input, then it will return ZERO. This index I have added up, to indicate successful match.
It seems to be working.
Hope it helps.
Call clear()
method from your custom adapter .
There's a new @config
tag for these cases. They link to the preceding @param
.
/** My function does X and Y.
@params {object} parameters An object containing the parameters
@config {integer} setting1 A required setting.
@config {string} [setting2] An optional setting.
@params {MyClass~FuncCallback} callback The callback function
*/
function(parameters, callback) {
// ...
};
/**
* This callback is displayed as part of the MyClass class.
* @callback MyClass~FuncCallback
* @param {number} responseCode
* @param {string} responseMessage
*/
As of today and Python 3.6, the results provided by @Constantine are no longer the same.
Python 3.6.10 |Anaconda, Inc.| (default, May 8 2020, 02:54:21)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import timeit
>>> timeit.Timer('s.append("something")', 's = []').timeit()
0.0447923709944007
>>> timeit.Timer('s += ["something"]', 's = []').timeit()
0.04335783299757168
It seems that append
and +=
now have an equal performance, whereas the compilation differences haven't changed at all:
>>> import dis
>>> dis.dis(compile("s = []; s.append('spam')", '', 'exec'))
1 0 BUILD_LIST 0
2 STORE_NAME 0 (s)
4 LOAD_NAME 0 (s)
6 LOAD_ATTR 1 (append)
8 LOAD_CONST 0 ('spam')
10 CALL_FUNCTION 1
12 POP_TOP
14 LOAD_CONST 1 (None)
16 RETURN_VALUE
>>> dis.dis(compile("s = []; s += ['spam']", '', 'exec'))
1 0 BUILD_LIST 0
2 STORE_NAME 0 (s)
4 LOAD_NAME 0 (s)
6 LOAD_CONST 0 ('spam')
8 BUILD_LIST 1
10 INPLACE_ADD
12 STORE_NAME 0 (s)
14 LOAD_CONST 1 (None)
16 RETURN_VALUE
What the provided links to comparisons/animations do not consider is when the amount of data exceed available memory --- at which point the number of passes over the data, i.e. I/O-costs, dominate the runtime. If you need to do that, read up on "external sorting" which usually cover variants of merge- and heap sorts.
http://corte.si/posts/code/visualisingsorting/index.html and http://corte.si/posts/code/timsort/index.html also have some cool images comparing various sorting algorithms.
Just use the Form Paint method and draw every Picturebox on it, it allows transparency :
private void frmGame_Paint(object sender, PaintEventArgs e)
{
DoubleBuffered = true;
for (int i = 0; i < Controls.Count; i++)
if (Controls[i].GetType() == typeof(PictureBox))
{
var p = Controls[i] as PictureBox;
p.Visible = false;
e.Graphics.DrawImage(p.Image, p.Left, p.Top, p.Width, p.Height);
}
}
If you have default parameters in your base constructor the base class will be called automatically.
using namespace std;
class Base
{
public:
Base(int a=1) : _a(a) {}
protected:
int _a;
};
class Derived : public Base
{
public:
Derived() {}
void printit() { cout << _a << endl; }
};
int main()
{
Derived d;
d.printit();
return 0;
}
Output is: 1
I've got a kind of botch for the old ADB server didn't ACK * failed to start daemon * issue which might help, though i haven't seen anyone else with my problem so maybe not. Anyway...
I changed the default install location for my HTC sensation to 2 (SD card), but when trying to revert back to 0 (internal) i was getting this error. Looking in task manager showed there were 2 instances of adb.exe running, one of which kept stopping and starting and was impossible to kill, the other could be killed but then a new instance would start almost immediately.
The only way i could get adb to start successfully was to get my command ready in the command window, go to task manager to end the adb.exe, then when the window came up saying 'are you sure you want to kill adb.exe' dragged that over the command window, clicked OK then immediately pressed Enter to run the command. It seems that the short window between adb.exe being killed and restarting itself is sufficient to run a command, though if you try to do something else it won't work and you have to repeat this process each time you want to run a command.
PITA but it's the only way an uneducated numpty like myself could get round it - hopefully it'll help someone...
Well, longs can't hold anything but integers.
One option is to use a float: float('234.89')
The other option is to truncate or round. Converting from a float to a long will truncate for you: long(float('234.89'))
>>> long(float('1.1'))
1L
>>> long(float('1.9'))
1L
>>> long(round(float('1.1')))
1L
>>> long(round(float('1.9')))
2L
First off, your code is a bit off. aes()
is an argument in ggplot()
, you don't use ggplot(...)
+ aes(...) + layers
Second, from the help file ?geom_bar
:
By default, geom_bar uses stat="count" which makes the height of the bar proportion to the number of cases in each group (or if the weight aethetic is supplied, the sum of the weights). If you want the heights of the bars to represent values in the data, use stat="identity" and map a variable to the y aesthetic.
You want the second case, where the height of the bar is equal to the conversion_rate
So what you want is...
data_country <- data.frame(country = c("China", "Germany", "UK", "US"),
conversion_rate = c(0.001331558,0.062428188, 0.052612025, 0.037800687))
ggplot(data_country, aes(x=country,y = conversion_rate)) +geom_bar(stat = "identity")
Result:
When you read in the year month day hour minutes with something like nextInt()
it leaves rest of the line in the parser/buffer (even if it is blank) so when you call nextLine()
you are reading the rest of this first line.
I suggest you to use scan.next()
instead of scan.nextLine()
.
You are doing most things correctly, it looks like the only problem you are hitting is that you are not triggering the change
method after you are setting the new value. Without a change
event, Select2 cannot know that the underlying value has changed so it will only display the placeholder. Changing your last part to
.val(initial_creditor_id).trigger('change');
Should fix your issue, and you should see the UI update right away.
This is assuming that you have an <option>
already that has a value
of initial_creditor_id
. If you do not Select2, and the browser, will not actually be able to change the value, as there is no option to switch to, and Select2 will not detect the new value. I noticed that your <select>
only contains a single option, the one for the placeholder, which means that you will need to create the new <option>
manually.
var $option = $("<option selected></option>").val(initial_creditor_id).text("Whatever Select2 should display");
And then append it to the <select>
that you initialized Select2 on. You may need to get the text from an external source, which is where initSelection
used to come into play, which is still possible with Select2 4.0.0. Like a standard select, this means you are going to have to make the AJAX request to retrieve the value and then set the <option>
text on the fly to adjust.
var $select = $('.creditor_select2');
$select.select2(/* ... */); // initialize Select2 and any events
var $option = $('<option selected>Loading...</option>').val(initial_creditor_id);
$select.append($option).trigger('change'); // append the option and update Select2
$.ajax({ // make the request for the selected data object
type: 'GET',
url: '/api/for/single/creditor/' + initial_creditor_id,
dataType: 'json'
}).then(function (data) {
// Here we should have the data object
$option.text(data.text).val(data.id); // update the text that is displayed (and maybe even the value)
$option.removeData(); // remove any caching data that might be associated
$select.trigger('change'); // notify JavaScript components of possible changes
});
While this may look like a lot of code, this is exactly how you would do it for non-Select2 select boxes to ensure that all changes were made.
I saw this problem before, when the (sub)folder I was trying to add had its name begin with "_Something_"
I removed the underscores and it worked. Check to see if your folder has characters which may be causing problems.
If you want to avoid the file_exists
VS is_dir
problem, I would suggest you to look here
I tried this and it only creates the directory if the directory does not exist. It does not care it there is a file with that name.
/* Creates the directory if it does not exist */
$path_to_directory = 'path/to/directory';
if (!file_exists($path_to_directory) && !is_dir($path_to_directory)) {
mkdir($path_to_directory, 0777, true);
}
This reply may be late but it may help users having similar problem. The opencv-contrib (available at https://github.com/opencv/opencv_contrib/releases) contains extra modules but the build procedure has to be done from core opencv (available at from https://github.com/opencv/opencv/releases) modules.
Follow below steps (assuming you are building it using CMake GUI)
Download openCV (from https://github.com/opencv/opencv/releases) and unzip it somewhere on your computer. Create build folder inside it
Download exra modules from OpenCV. (from https://github.com/opencv/opencv_contrib/releases). Ensure you download the same version.
Unzip the folder.
Open CMake
Click Browse Source and navigate to your openCV folder.
Click Browse Build and navigate to your build Folder.
Click the configure button. You will be asked how you would like to generate the files. Choose Unix-Makefile from the drop down menu and Click OK. CMake will perform some tests and return a set of red boxes appear in the CMake Window.
Search for "OPENCV_EXTRA_MODULES_PATH" and provide the path to modules folder (e.g. /Users/purushottam_d/Programs/OpenCV3_4_5_contrib/modules)
Click Configure again, then Click Generate.
Go to build folder
# cd build
# make
# sudo make install
npm install --global --production windows-build-tools
The code example is exactly this:
from xlutils.copy import copy
from xlrd import *
w = copy(open_workbook('book1.xls'))
w.get_sheet(0).write(0,0,"foo")
w.save('book2.xls')
You'll need to create book1.xls to test, but you get the idea.
What you are trying to do is simply not possible from an app (at least not on a non-rooted/non-modified device). The message "NFC tag type not supported" is displayed by the Android system (or more specifically the NFC system service) before and instead of dispatching the tag to your app. This means that the NFC system service filters MIFARE Classic tags and never notifies any app about them. Consequently, your app can't detect MIFARE Classic tags or circumvent that popup message.
On a rooted device, you may be able to bypass the message using either
the CSC (Consumer Software Customization) feature configuration files on the system partition (see /system/csc/. The NFC system service disables the popup and dispatches MIFARE Classic tags to apps if the CSC feature <CscFeature_NFC_EnableSecurityPromptPopup>
is set to any value but "mifareclassic" or "all". For instance, you could use:
<CscFeature_NFC_EnableSecurityPromptPopup>NONE</CscFeature_NFC_EnableSecurityPromptPopup>
You could add this entry to, for instance, the file "/system/csc/others.xml" (within the section <FeatureSet> ... </FeatureSet>
that already exists in that file).
Since, you asked for the Galaxy S6 (the question that you linked) as well: I have tested this method on the S4 when it came out. I have not verified if this still works in the latest firmware or on other devices (e.g. the S6).
This is pure guessing, but according to this (link no longer available), it seems that some apps (e.g. NXP TagInfo) are capable of detecting MIFARE Classic tags on affected Samsung devices since Android 4.4. This might mean that foreground apps are capable of bypassing that popup using the reader-mode API (see NfcAdapter.enableReaderMode
) possibly in combination with NfcAdapter.FLAG_READER_SKIP_NDEF_CHECK
.
I have used this before and I think in order to make sure credential persist and in a best secure way is
ConfigurationManager
classSecureString
classCryptography
namespace.This link will be of great help I hope : Click here
I believe you want to use CHARINDEX
. You can read about it here.
I often just open the console and look for the solution in the objects methods. Quite often it's already there:
>>> a = "hello ' s"
>>> dir(a)
[ (....) 'partition', 'replace' (....)]
>>> a.replace("'", " ")
'hello s'
Short answer: Use string.replace()
.
I tried the following settings in django 2.1.1
<head>
{% load static %}
<link rel="shortcut icon" type="image/png" href="{% static 'images/favicon.ico' %}"/>
</head>
STATIC_ROOT = os.path.join(BASE_DIR, 'static')
STATIC_URL = '/static/'` <br>`.............
Another option:
=MID(A1,2,LEN(A1)-2)
Or this (for fun):
=RIGHT(LEFT(A1,LEN(A1)-1),LEN(LEFT(A1,LEN(A1)-1))-1)
toLocaleTimeString() makes this very simple. There is no need to do this yourself anymore. You'll be happier and live longer if you don't attack dates with string methods.
const timeString = '18:00:00'_x000D_
// Append any date. Use your birthday._x000D_
const timeString12hr = new Date('1970-01-01T' + timeString + 'Z')_x000D_
.toLocaleTimeString({},_x000D_
{timeZone:'UTC',hour12:true,hour:'numeric',minute:'numeric'}_x000D_
);_x000D_
document.getElementById('myTime').innerText = timeString12hr
_x000D_
<h1 id='myTime'></h1>
_x000D_
I don't think it is possible to share a database link between more than one user but not all. They are either private (for one user only) or public (for all users).
A good way around this is to create a view in SCHEMA_B that exposes the table you want to access through the database link. This will also give you good control over who is allowed to select from the database link, as you can control the access to the view.
Do like this:
create database link db_link... as before;
create view mytable_view as select * from mytable@db_link;
grant select on mytable_view to myuser;
You don't need cURL to do POSTed form data. --post-data 'key1=value1&key2=value2'
works just fine. Note: you can also pass a file name to wget with the POST data in the file.
It is possible.
When you use Return inside a procedure, the control is transferred to the calling program which calls the procedure. It is like an exit in loops.
It won't return any value.
I am guessing that this is what something you are trying to achieve.
<input type="checkbox" value="a" (click)="click($event)">A
<input type="checkbox" value="b" (click)="click($event)">B
click(ev){
console.log(ev.target.defaultValue);
}
You can try this all of method in our html page..
1st way
body { overflow-x:hidden; }
2nd way You can use the following in your CSS body tag:
overflow-y: scroll; overflow-x: hidden;
That will remove your scrollbar.
3rd way
body { min-width: 1167px; }
5th way
html, body { max-width: 100%; overflow-x: hidden; }
6th way
element { max-width: 100vw; overflow-x: hidden; }
4th way..
var docWidth = document.documentElement.offsetWidth; [].forEach.call( document.querySelectorAll('*'), function(el) { if (el.offsetWidth > docWidth) { console.log(el); } } );
Now i m searching about more..!!!!
Selection
is its own object within VBA. It functions much like a Range
object.
Selection and Range do not share all the same properties and methods, though, so for ease of use it might make sense just to create a range and set it equal to the Selection, then you can deal with it programmatically like any other range.
Dim myRange as Range
Set myRange = Selection
For further reading, check out the MSDN article.
Because the bootstrap-select is a bootstrap component and therefore you need to include it in your code as you did for your V3
NOTE: this component only works in boostrap-4 since version 1.13.0
$('select').selectpicker();
_x000D_
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css">_x000D_
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.13.1/css/bootstrap-select.css" />_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.bundle.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.13.1/js/bootstrap-select.min.js"></script>_x000D_
_x000D_
_x000D_
_x000D_
<select class="selectpicker" multiple data-live-search="true">_x000D_
<option>Mustard</option>_x000D_
<option>Ketchup</option>_x000D_
<option>Relish</option>_x000D_
</select>
_x000D_
I am not sure what math can be done on a DATETIME data type, but if you are using PHP, I strongly recommend using the integer-based timestamps. Basically, you can store a 4-byte integer in the database using PHP's time() function. This makes doing math on it much more straightforward.
The problem is the keys that have been used to sign the APKs, by default if you are running directly from your IDE and opening your Emulator, the APK installed in the Emulator is signed with your debug-key(usually installed in ~/.android/debug.keystore), so if the previous APK was signed with a different key other than the one you are currently using you will always get the signatures conflict, in order to fix it, make sure you are using the very same key to sign both APKs, even if the previous APK was signed with a debug-key from another SDK, the keys will definitely be different.
Also if you don't know exactly what key was used before to sign the apk and yet you want to install the new version of your app, you can just uninstall the previous application and reinstall the new one.
Hope this Helps...
Regards!
Using underscore.js or lodash.js, you can do the following on an array of strings:
var contacts = ['Billy Bob', 'John', 'Bill', 'Sarah'];
var filters = ['Bill', 'Sarah'];
contacts = _.filter(contacts, function(contact) {
return _.every(filters, function(filter) { return (contact.indexOf(filter) === -1); });
});
// ['John']
And on a single string:
var contact = 'Billy';
var filters = ['Bill', 'Sarah'];
_.every(filters, function(filter) { return (contact.indexOf(filter) >= 0); });
// true
You can also use the react-fontawesome
icon library. Here's the link: react-fontawesome
From the NPM page, just install via npm:
npm install --save react-fontawesome
Require the module:
var FontAwesome = require('react-fontawesome');
And finally, use the <FontAwesome />
component and pass in attributes to specify icon and styling:
var MyComponent = React.createClass({
render: function () {
return (
<FontAwesome
className='super-crazy-colors'
name='rocket'
size='2x'
spin
style={{ textShadow: '0 1px 0 rgba(0, 0, 0, 0.1)' }}
/>
);
}
});
Don't forget to add the font-awesome CSS to index.html:
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.1/css/font-awesome.min.css">
The same can be applied to a scenario where the data has been normalized, but now you want a table to have values found in a third table. The following will allow you to update a table with information from a third table that is liked by a second table.
UPDATE t1
LEFT JOIN
t2
ON
t2.some_id = t1.some_id
LEFT JOIN
t3
ON
t2.t3_id = t3.id
SET
t1.new_column = t3.column;
This would be useful in a case where you had users and groups, and you wanted a user to be able to add their own variation of the group name, so originally you would want to import the existing group names into the field where the user is going to be able to modify it.
This works for me:
recyclerView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
return true;
}
});
Having an interest in this, I decided to test the suggested methods with the closest "apples to apples" test I could. I wrote a Console app, with the following code:
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Runtime.Serialization.Formatters.Binary;
using System.Text;
using System.Threading.Tasks;
namespace SerializationTests
{
class Program
{
static void Main(string[] args)
{
var count = 100000;
var rnd = new Random(DateTime.UtcNow.GetHashCode());
Console.WriteLine("Generating {0} arrays of data...", count);
var arrays = new List<int[]>();
for (int i = 0; i < count; i++)
{
var elements = rnd.Next(1, 100);
var array = new int[elements];
for (int j = 0; j < elements; j++)
{
array[j] = rnd.Next();
}
arrays.Add(array);
}
Console.WriteLine("Test data generated.");
var stopWatch = new Stopwatch();
Console.WriteLine("Testing BinarySerializer...");
var binarySerializer = new BinarySerializer();
var binarySerialized = new List<byte[]>();
var binaryDeserialized = new List<int[]>();
stopWatch.Reset();
stopWatch.Start();
foreach (var array in arrays)
{
binarySerialized.Add(binarySerializer.Serialize(array));
}
stopWatch.Stop();
Console.WriteLine("BinaryFormatter: Serializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);
stopWatch.Reset();
stopWatch.Start();
foreach (var serialized in binarySerialized)
{
binaryDeserialized.Add(binarySerializer.Deserialize<int[]>(serialized));
}
stopWatch.Stop();
Console.WriteLine("BinaryFormatter: Deserializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);
Console.WriteLine();
Console.WriteLine("Testing ProtoBuf serializer...");
var protobufSerializer = new ProtoBufSerializer();
var protobufSerialized = new List<byte[]>();
var protobufDeserialized = new List<int[]>();
stopWatch.Reset();
stopWatch.Start();
foreach (var array in arrays)
{
protobufSerialized.Add(protobufSerializer.Serialize(array));
}
stopWatch.Stop();
Console.WriteLine("ProtoBuf: Serializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);
stopWatch.Reset();
stopWatch.Start();
foreach (var serialized in protobufSerialized)
{
protobufDeserialized.Add(protobufSerializer.Deserialize<int[]>(serialized));
}
stopWatch.Stop();
Console.WriteLine("ProtoBuf: Deserializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);
Console.WriteLine();
Console.WriteLine("Testing NetSerializer serializer...");
var netSerializerSerializer = new ProtoBufSerializer();
var netSerializerSerialized = new List<byte[]>();
var netSerializerDeserialized = new List<int[]>();
stopWatch.Reset();
stopWatch.Start();
foreach (var array in arrays)
{
netSerializerSerialized.Add(netSerializerSerializer.Serialize(array));
}
stopWatch.Stop();
Console.WriteLine("NetSerializer: Serializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);
stopWatch.Reset();
stopWatch.Start();
foreach (var serialized in netSerializerSerialized)
{
netSerializerDeserialized.Add(netSerializerSerializer.Deserialize<int[]>(serialized));
}
stopWatch.Stop();
Console.WriteLine("NetSerializer: Deserializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);
Console.WriteLine("Press any key to end.");
Console.ReadKey();
}
public class BinarySerializer
{
private static readonly BinaryFormatter Formatter = new BinaryFormatter();
public byte[] Serialize(object toSerialize)
{
using (var stream = new MemoryStream())
{
Formatter.Serialize(stream, toSerialize);
return stream.ToArray();
}
}
public T Deserialize<T>(byte[] serialized)
{
using (var stream = new MemoryStream(serialized))
{
var result = (T)Formatter.Deserialize(stream);
return result;
}
}
}
public class ProtoBufSerializer
{
public byte[] Serialize(object toSerialize)
{
using (var stream = new MemoryStream())
{
ProtoBuf.Serializer.Serialize(stream, toSerialize);
return stream.ToArray();
}
}
public T Deserialize<T>(byte[] serialized)
{
using (var stream = new MemoryStream(serialized))
{
var result = ProtoBuf.Serializer.Deserialize<T>(stream);
return result;
}
}
}
public class NetSerializer
{
private static readonly NetSerializer Serializer = new NetSerializer();
public byte[] Serialize(object toSerialize)
{
return Serializer.Serialize(toSerialize);
}
public T Deserialize<T>(byte[] serialized)
{
return Serializer.Deserialize<T>(serialized);
}
}
}
}
The results surprised me; they were consistent when run multiple times:
Generating 100000 arrays of data...
Test data generated.
Testing BinarySerializer...
BinaryFormatter: Serializing took 336.8392ms.
BinaryFormatter: Deserializing took 208.7527ms.
Testing ProtoBuf serializer...
ProtoBuf: Serializing took 2284.3827ms.
ProtoBuf: Deserializing took 2201.8072ms.
Testing NetSerializer serializer...
NetSerializer: Serializing took 2139.5424ms.
NetSerializer: Deserializing took 2113.7296ms.
Press any key to end.
Collecting these results, I decided to see if ProtoBuf or NetSerializer performed better with larger objects. I changed the collection count to 10,000 objects, but increased the size of the arrays to 1-10,000 instead of 1-100. The results seemed even more definitive:
Generating 10000 arrays of data...
Test data generated.
Testing BinarySerializer...
BinaryFormatter: Serializing took 285.8356ms.
BinaryFormatter: Deserializing took 206.0906ms.
Testing ProtoBuf serializer...
ProtoBuf: Serializing took 10693.3848ms.
ProtoBuf: Deserializing took 5988.5993ms.
Testing NetSerializer serializer...
NetSerializer: Serializing took 9017.5785ms.
NetSerializer: Deserializing took 5978.7203ms.
Press any key to end.
My conclusion, therefore, is: there may be cases where ProtoBuf and NetSerializer are well-suited to, but in terms of raw performance for at least relatively simple objects... BinaryFormatter is significantly more performant, by at least an order of magnitude.
YMMV.
Credits to https://www.dotnetperls.com/property.
private setters are same as read-only fields. They can only be set in constructor. If you try to set from outside you get compile time error.
public class MyClass
{
public MyClass()
{
// Set the private property.
this.Name = "Sample Name from Inside";
}
public MyClass(string name)
{
// Set the private property.
this.Name = name;
}
string _name;
public string Name
{
get
{
return this._name;
}
private set
{
// Can only be called in this class.
this._name = value;
}
}
}
class Program
{
static void Main()
{
MyClass mc = new MyClass();
Console.WriteLine(mc.name);
MyClass mc2 = new MyClass("Sample Name from Outside");
Console.WriteLine(mc2.name);
}
}
Please see below screen shot when I tried to set it from outside of the class.
A simple method of creating the service, adding headers and reading the JSON response,
private static void WebRequest()
{
const string WEBSERVICE_URL = "<<Web Service URL>>";
try
{
var webRequest = System.Net.WebRequest.Create(WEBSERVICE_URL);
if (webRequest != null)
{
webRequest.Method = "GET";
webRequest.Timeout = 20000;
webRequest.ContentType = "application/json";
webRequest.Headers.Add("Authorization", "Basic dcmGV25hZFzc3VudDM6cGzdCdvQ=");
using (System.IO.Stream s = webRequest.GetResponse().GetResponseStream())
{
using (System.IO.StreamReader sr = new System.IO.StreamReader(s))
{
var jsonResponse = sr.ReadToEnd();
Console.WriteLine(String.Format("Response: {0}", jsonResponse));
}
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
[nodemon] Internal watch failed: watch /home/Document/nmmExpressServer/bin ENOSPC
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: `nodemon ./bin/www`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] start script.
This is the error I got when running nodemon ./bin/www
.
The solution was closing an Atom window that had a entire directory of folders open in the project window.
I don't know why, but I'm assuming Atom and nodemon use similar processes to watch files/folders.
You should assume it does something useful and call Dispose even if it does nothing in current .NET Framework incarnations. There's no guarantee it will stay that way in future versions leading to inefficient resource usage.
how does rails know that
user_id
is a foreign key referencinguser
?
Rails itself does not know that user_id
is a foreign key referencing user
. In the first command rails generate model Micropost user_id:integer
it only adds a column user_id
however rails does not know the use of the col. You need to manually put the line in the Micropost
model
class Micropost < ActiveRecord::Base
belongs_to :user
end
class User < ActiveRecord::Base
has_many :microposts
end
the keywords belongs_to
and has_many
determine the relationship between these models and declare user_id
as a foreign key to User
model.
The later command rails generate model Micropost user:references
adds the line belongs_to :user
in the Micropost
model and hereby declares as a foreign key.
FYI
Declaring the foreign keys using the former method only lets the Rails know about the relationship the models/tables have. The database is unknown about the relationship. Therefore when you generate the EER Diagrams using software like MySql Workbench
you find that there is no relationship threads drawn between the models. Like in the following pic
However, if you use the later method you find that you migration file looks like:
def change
create_table :microposts do |t|
t.references :user, index: true
t.timestamps null: false
end
add_foreign_key :microposts, :users
Now the foreign key is set at the database level. and you can generate proper EER
diagrams.
WordPress have the function get_metadata this get all meta of object (Post, term, user...)
Just use
get_metadata( 'post', 15 );
The statement about CMake being a "build generator" is a common misconception.
It's not technically wrong; it just describes HOW it works, but not WHAT it does.
In the context of the question, they do the same thing: take a bunch of C/C++ files and turn them into a binary.
So, what is the real difference?
CMake is much more high-level. It's tailored to compile C++, for which you write much less build code, but can be also used for general purpose build. make
has some built-in C/C++ rules as well, but they are useless at best.
CMake
does a two-step build: it generates a low-level build script in ninja
or make
or many other generators, and then you run it. All the shell script pieces that are normally piled into Makefile
are only executed at the generation stage. Thus, CMake
build can be orders of magnitude faster.
The grammar of CMake
is much easier to support for external tools than make's.
Once make
builds an artifact, it forgets how it was built. What sources it was built from, what compiler flags? CMake
tracks it, make
leaves it up to you. If one of library sources was removed since the previous version of Makefile
, make
won't rebuild it.
Modern CMake
(starting with version 3.something) works in terms of dependencies between "targets". A target is still a single output file, but it can have transitive ("public"/"interface" in CMake terms) dependencies.
These transitive dependencies can be exposed to or hidden from the dependent packages. CMake
will manage directories for you. With make
, you're stuck on a file-by-file and manage-directories-by-hand level.
You could code up something in make
using intermediate files to cover the last two gaps, but you're on your own. make
does contain a Turing complete language (even two, sometimes three counting Guile); the first two are horrible and the Guile is practically never used.
To be honest, this is what CMake
and make
have in common -- their languages are pretty horrible. Here's what comes to mind:
CMake
has three data types: string, list, and a target with properties. make
has one: string;set_property(TARGET helloworld APPEND PROPERTY INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR}")
;I suspect the problem is the slashes in the format string versus the ones in the data. That's a culture-sensitive date separator character in the format string, and the final argument being null
means "use the current culture". If you either escape the slashes ("M'/'d'/'yyyy") or you specify CultureInfo.InvariantCulture
, it will be okay.
If anyone's interested in reproducing this:
// Works
DateTime dt = DateTime.ParseExact("9/1/2009", "M'/'d'/'yyyy",
new CultureInfo("de-DE"));
// Works
DateTime dt = DateTime.ParseExact("9/1/2009", "M/d/yyyy",
new CultureInfo("en-US"));
// Works
DateTime dt = DateTime.ParseExact("9/1/2009", "M/d/yyyy",
CultureInfo.InvariantCulture);
// Fails
DateTime dt = DateTime.ParseExact("9/1/2009", "M/d/yyyy",
new CultureInfo("de-DE"));
I think you may be overthinking this.
My approach is simple.
Enclose you page with a div tag:
<div id="mydiv">
<!-- you page here -->
</div>
In your javascript:
var html=document.getElementById('mydiv').innerHTML;
html = html.replace(/this/g,"that");
document.getElementById('mydiv').innerHTML=html;
Actually, there is some possibility to send a table data from one PostgreSQL database to another. I use the procedural language plperlu (unsafe Perl procedural language) for it.
Description (all was done on a Linux server):
Create plperlu language in your database A
Then PostgreSQL can join some Perl modules through series of the following commands at the end of postgresql.conf for the database A:
plperl.on_init='use DBI;'
plperl.on_init='use DBD::Pg;'
You build a function in A like this:
CREATE OR REPLACE FUNCTION send_data( VARCHAR )
RETURNS character varying AS
$BODY$
my $command = $_[0] || die 'No SQL command!';
my $connection_string =
"dbi:Pg:dbname=your_dbase;host=192.168.1.2;port=5432;";
$dbh = DBI->connect($connection_string,'user','pass',
{AutoCommit=>0,RaiseError=>1,PrintError=>1,pg_enable_utf8=>1,}
);
my $sql = $dbh-> prepare( $command );
eval { $sql-> execute() };
my $error = $dbh-> state;
$sql-> finish;
if ( $error ) { $dbh-> rollback() } else { $dbh-> commit() }
$dbh-> disconnect();
$BODY$
LANGUAGE plperlu VOLATILE;
And then you can call the function inside database A:
SELECT send_data( 'INSERT INTO jm (jm) VALUES (''zzzzzz'')' );
And the value "zzzzzz" will be added into table "jm" in database B.
<?php $data = "<div><p>Welcome to my PHP class, we are glad you are here</p></div>"; echo strip_tags($data); ?>
Or if you have a content coming from the database;
<?php $data = strip_tags($get_row['description']); ?>
<?=substr($data, 0, 100) ?><?php if(strlen($data) > 100) { ?>...<?php } ?>
My way
Car * cars;
// else were
extern Car * cars;
void main()
{
// COLORS == id
cars = new Car[3] {
Car(BLUE),
Car(RED),
Car(GREEN)
};
}
Regarding the issue with 'size', size is not a function on a dataframe, it is rather a property. So instead of using size(), plain size should work
Apart from that, a method like this should work
def doCalculation(df):
groupCount = df.size
groupSum = df['my_labels'].notnull().sum()
return groupCount / groupSum
dataFrame.groupby('my_labels').apply(doCalculation)
As others have said, only firefox supports this. Here is a work around that does the same thing, and even works with dashed outlines.
.has-outline {_x000D_
display: inline-block;_x000D_
background: #51ab9f;_x000D_
border-radius: 10px;_x000D_
padding: 5px;_x000D_
position: relative;_x000D_
}_x000D_
.has-outline:after {_x000D_
border-radius: 10px;_x000D_
padding: 5px;_x000D_
border: 2px dashed #9dd5cf;_x000D_
position: absolute;_x000D_
content: '';_x000D_
top: -2px;_x000D_
left: -2px;_x000D_
bottom: -2px;_x000D_
right: -2px;_x000D_
}
_x000D_
<div class="has-outline">_x000D_
I can haz outline_x000D_
</div>
_x000D_
Thanks it working
here i am done with this by qty field is zero means it shown that cells are in red color
int count = 0;
foreach (DataGridViewRow row in ItemDg.Rows)
{
int qtyEntered = Convert.ToInt16(row.Cells[1].Value);
if (qtyEntered <= 0)
{
ItemDg[0, count].Style.BackColor = Color.Red;//to color the row
ItemDg[1, count].Style.BackColor = Color.Red;
ItemDg[0, count].ReadOnly = true;//qty should not be enter for 0 inventory
}
ItemDg[0, count].Value = "0";//assign a default value to quantity enter
count++;
}
}
Put this XML to show only the wheel:
<ProgressBar
android:indeterminate="true"
android:id="@+id/marker_progress"
style="?android:attr/progressBarStyle"
android:layout_height="50dp" />
You could move the common parts to another configuration file and include
from both server contexts. This should work:
server {
listen 80;
server_name server1.example;
...
include /etc/nginx/include.d/your-common-stuff.conf;
}
server {
listen 80;
server_name another-one.example;
...
include /etc/nginx/include.d/your-common-stuff.conf;
}
Edit: Here's an example that's actually copied from my running server. I configure my basic server settings in /etc/nginx/sites-enabled
(normal stuff for nginx on Ubuntu/Debian). For example, my main server bunkus.org
's configuration file is /etc/nginx/sites-enabled
and it looks like this:
server {
listen 80 default_server;
listen [2a01:4f8:120:3105::101:1]:80 default_server;
include /etc/nginx/include.d/all-common;
include /etc/nginx/include.d/bunkus.org-common;
include /etc/nginx/include.d/bunkus.org-80;
}
server {
listen 443 default_server;
listen [2a01:4f8:120:3105::101:1]:443 default_server;
include /etc/nginx/include.d/all-common;
include /etc/nginx/include.d/ssl-common;
include /etc/nginx/include.d/bunkus.org-common;
include /etc/nginx/include.d/bunkus.org-443;
}
As an example here's the /etc/nginx/include.d/all-common
file that's included from both server
contexts:
index index.html index.htm index.php .dirindex.php;
try_files $uri $uri/ =404;
location ~ /\.ht {
deny all;
}
location = /favicon.ico {
log_not_found off;
access_log off;
}
location ~ /(README|ChangeLog)$ {
types { }
default_type text/plain;
}
From Terminal you can use:
open -a iPhone\ Simulator
open -a iOS\ Simulator
open -a Simulator
This all depends on the application name of the simulator, this can change with each iteration of Xcode.
From my testing Write-Output and [Console]::WriteLine() perform much better than Write-Host.
Depending on how much text you need to write out this may be important.
Below if the result of 5 tests each for Write-Host, Write-Output and [Console]::WriteLine().
In my limited experience, I've found when working with any sort of real world data I need to abandon the cmdlets and go straight for the lower level commands to get any decent performance out of my scripts.
measure-command {$count = 0; while ($count -lt 1000) { Write-Host "hello"; $count++ }}
1312ms
1651ms
1909ms
1685ms
1788ms
measure-command { $count = 0; while ($count -lt 1000) { Write-Output "hello"; $count++ }}
97ms
105ms
94ms
105ms
98ms
measure-command { $count = 0; while ($count -lt 1000) { [console]::WriteLine("hello"); $count++ }}
158ms
105ms
124ms
99ms
95ms
I am thinking about something else, if you are trying to login with a different username that doesn't exist this is the message you will get.
So I assume you may be trying to ssh with ec2-user but I recall recently most of centos AMIs for example are using centos user instead of ec2-user
so if you are
ssh -i file.pem centos@public_IP
please tell me you aretrying to ssh with the right user name otherwise this may be a strong reason of you see such error message even with the right permissions on your ~/.ssh/id_rsa or file.pem
I've used PDFBox with good success. Here's a sample of what the code looks like (back from version 0.7.2), that likely came from one of the provided examples:
// load the document
System.out.println("Reading document: " + filename);
PDDocument doc = null;
doc = PDDocument.load(filename);
// look at all the document information
PDDocumentInformation info = doc.getDocumentInformation();
COSDictionary dict = info.getDictionary();
List l = dict.keyList();
for (Object o : l) {
//System.out.println(o.toString() + " " + dict.getString(o));
System.out.println(o.toString());
}
// look at the document catalog
PDDocumentCatalog cat = doc.getDocumentCatalog();
System.out.println("Catalog:" + cat);
List<PDPage> lp = cat.getAllPages();
System.out.println("# Pages: " + lp.size());
PDPage page = lp.get(4);
System.out.println("Page: " + page);
System.out.println("\tCropBox: " + page.getCropBox());
System.out.println("\tMediaBox: " + page.getMediaBox());
System.out.println("\tResources: " + page.getResources());
System.out.println("\tRotation: " + page.getRotation());
System.out.println("\tArtBox: " + page.getArtBox());
System.out.println("\tBleedBox: " + page.getBleedBox());
System.out.println("\tContents: " + page.getContents());
System.out.println("\tTrimBox: " + page.getTrimBox());
List<PDAnnotation> la = page.getAnnotations();
System.out.println("\t# Annotations: " + la.size());
JavaScript running in a browser doesn't generally have access to the local file system. That's outside the sandbox. So I think the answer is no.
The simplest solution is:
scaleFontSize: 0
see the chart.js Document
You can declare a dictionary inside a dictionary by nesting the {} containers:
d = {'dict1': {'foo': 1, 'bar': 2}, 'dict2': {'baz': 3, 'quux': 4}}
And then you can access the elements using the [] syntax:
print d['dict1'] # {'foo': 1, 'bar': 2}
print d['dict1']['foo'] # 1
print d['dict2']['quux'] # 4
Given the above, if you want to add another dictionary to the dictionary, it can be done like so:
d['dict3'] = {'spam': 5, 'ham': 6}
or if you prefer to add items to the internal dictionary one by one:
d['dict4'] = {}
d['dict4']['king'] = 7
d['dict4']['queen'] = 8
Very similar to this question, and I would suggest the same formula in column D, albeit a few changes to the ranges:
=IFERROR(VLOOKUP(C1, A:B, 2, 0), "")
If you wanted to use match, you'd have to use INDEX
as well, like so:
=IFERROR(INDEX(B:B, MATCH(C1, A:A, 0)), "")
but this is really lengthy to me and you need to know how to properly use two functions (or three, if you don't know how IFERROR
works)!
Note: =IFERROR()
can be a substitute of =IF()
and =ISERROR()
in some cases :)
You can run the below script in the Manage Jenkins ? Scripts Console for deleting the workspaces of all the jobs at one shot. We did this to clean up space on the file system.
import hudson.model.*
// For each project
for(item in Hudson.instance.items) {
// check that job is not building
if(!item.isBuilding()) {
println("Wiping out workspace of job "+item.name)
item.doDoWipeOutWorkspace()
}
else {
println("Skipping job "+item.name+", currently building")
}
}
you can call mysql_fetch_array() for no_of_row time
You can try VCS to ICS file converter (Java, works with Windows, Mac, Linux etc.). It has the feature of parsing events and todos. You can convert the VCS generated by your Nokia phone, with bluetooth export or via nbuexplorer.
Let’s make it simple:
++[[]][+[]]+[+[]] = "10"
var a = [[]][+[]];
var b = [+[]];
// so a == [] and b == [0]
++a;
// then a == 1 and b is still that array [0]
// when you sum the var a and an array, it will sum b as a string just like that:
1 + "0" = "10"
Try this
#import <QuartzCore/QuartzCore.h> // not necessary for 10 years now :)
...
view.layer.cornerRadius = 5;
view.layer.masksToBounds = true;
Note: If you are trying to apply rounded corners to a UIViewController
's view, it should not be applied in the view controller's constructor, but rather in -viewDidLoad
, after view
is actually instantiated.
$_
is the active object in the current pipeline. You've started a new pipeline with $FOLDLIST | ...
so $_
represents the objects in that array that are passed down the pipeline. You should stash the FileInfo object from the first pipeline in a variable and then reference that variable later e.g.:
write-host $NEWN.Length
$file = $_
...
Move-Item $file.Name $DPATH
I have checked and fixed the following and got it resolved -
/etc/httpd/conf/
10.12.13.4:80
I tested the above methods for counting lines and here are my observations for Different methods as tested on my system
File Size : 1.6 Gb Methods:
Moreover Java8 Approach seems quite handy :
Files.lines(Paths.get(filePath), Charset.defaultCharset()).count()
[Return type : long]
Just as an addition to the accepted answer, you might find your code looking more consistent when using the LINQ method syntax:
Context.person_account_portfolio
.Where(p => person_id == personId)
.ToList()
.ForEach(x => x.is_default = false);
.ToList()
is neccessary because .ForEach() is defined only on List<T>
, not on IEnumerable<T>
. Just be aware .ToList()
is going to execute the query and load ALL matching rows from database before executing the loop.
A key compatibility issue is support for persistent connections. I recently worked on a server that "supported" HTTP/1.1, yet failed to close the connection when a client sent an HTTP/1.0 request. When writing a server that supports HTTP/1.1, be sure it also works well with HTTP/1.0-only clients.
private static String readAll(Reader rd) throws IOException {
StringBuilder sb = new StringBuilder();
int cp;
while ((cp = rd.read()) != -1) {
sb.append((char) cp);
}
return sb.toString();
}
String jsonText = readAll(inputofyourjsonstream);
JSONObject json = new JSONObject(jsonText);
JSONArray arr = json.getJSONArray("Compemployes");
Your arr would looks like: [ { "id":1001, "name":"jhon" }, { "id":1002, "name":"jhon" } ] You can use:
arr.getJSONObject(index)
to get the objects inside of the array.
Doing password checks on client side is unsafe especially when the password is hard coded.
The safest way is password checking on server side, but even then the password should not be transmitted plain text.
Checking the password client side is possible in a "secure way":
Say "abc" is your password so your md5 would be "900150983cd24fb0d6963f7d28e17f72" (consider salting!). Now build a url containing the hash (like http://yourdomain.com/90015...f72.html).
Try curl -v http://localhost:8080/
instead of 127.0.0.1
The solution that worked for me when I had huge legend was to use extra empty image layout. In following example I made 4 rows and at the bottom I plot image with offset for legend (bbox_to_anchor) at the top it does not get cut.
f = plt.figure()
ax = f.add_subplot(414)
lgd = ax.legend(loc='upper left', bbox_to_anchor=(0, 4), mode="expand", borderaxespad=0.3)
ax.autoscale_view()
plt.savefig(fig_name, format='svg', dpi=1200, bbox_extra_artists=(lgd,), bbox_inches='tight')
Try this:
$("#cpa-form").submit(function(e){
return false;
});
As for the workaround (without using non-portable -P
), you can temporary replace a new-line character with the different one and change it back, e.g.:
grep -o "_foo_" <(paste -sd_ file) | tr -d '_'
Basically it's looking for exact match _foo_
where _
means \n
(so __
= \n\n
). You don't have to translate it back by tr '_' '\n'
, as each pattern would be printed in the new line anyway, so removing _
is enough.
You have to add Button to excel sheet(say sheet1
) from which you can go to another sheet(say sheet2
).
Button can be added from Developer tab in excel. If developer tab is not there follow below steps to enable.
GOTO file -> options -> Customize Ribbon -> enable checkbox of developer on right panel -> Done.
To Add button :-
Developer Tab -> Insert -> choose first item button -> choose location of button-> Done.
To give name for button :-
Right click on button -> edit text.
To add code for going to sheet2 :-
Right click on button -> Assign Macro -> New -> (microsoft visual basic will open to code for button) -> paste below code
Worksheets("Sheet2").Visible = True
Worksheets("Sheet2").Activate
Save the file using 'Excel Macro Enable Template(*.xltm)' By which the code is appended with excel sheet.
Today, you should be representing a folder using its content: URI as obtained from the Storage Access Framework, and opening it should be as simple as:
Intent i = new Intent(Intent.ACTION_VIEW, uri);
startActivity(i);
Alas, the Files app currently contains a bug that causes it to crash when you try this using the external storage provider. Folders from third party providers however can be displayed in this way.
We've been using the below class -
class SleepSimulator{
QMutex localMutex;
QWaitCondition sleepSimulator;
public:
SleepSimulator::SleepSimulator()
{
localMutex.lock();
}
void sleep(unsigned long sleepMS)
{
sleepSimulator.wait(&localMutex, sleepMS);
}
void CancelSleep()
{
sleepSimulator.wakeAll();
}
};
QWaitCondition is designed to coordinate mutex waiting between different threads. But what makes this work is the wait method has a timeout on it. When called this way, it functions exactly like a sleep function, but it uses Qt's event loop for the timing. So, no other events or the UI are blocked like normal windows sleep function does.
As a bonus, we added the CancelSleep function to allows another part of the program to cancel the "sleep" function.
What we liked about this is that it lightweight, reusable and is completely self contained.
QMutex: http://doc.qt.io/archives/4.6/qmutex.html
QWaitCondition: http://doc.qt.io/archives/4.6/qwaitcondition.html
Another solution would be to open the 'run configuration' and then in the 'Environment' tab, set the couple {Path,Value}.
For instance to add a 'lib' directory located at the root of the project,
Path <- ${workspace_loc:name_of_the_project}\lib
I am in Android 3.6.1, and the way " Top Menu > View > Tools Window > Device File Manager" doesn't work.Because there is no the "Device File Manager" option in Tools Window.
But I resolve the problem with another way:
1?Find the magnifier icon on the top right toobar.
2?Click it and search "device" in the search bar, and you can see it.
This JavaScript function will be used to restrict alphabets and special characters in Textbox , only numbers, delete, arrow keys and backspace will be allowed. JavaScript Code Snippet - Allow Numbers in TextBox, Restrict Alphabets and Special Characters
Tested in IE & Chrome.
JavaScript function
<script type="text/javascript">
/*code: 48-57 Numbers
8 - Backspace,
35 - home key, 36 - End key
37-40: Arrow keys, 46 - Delete key*/
function restrictAlphabets(e){
var x=e.which||e.keycode;
if((x>=48 && x<=57) || x==8 ||
(x>=35 && x<=40)|| x==46)
return true;
else
return false;
}
</script>
HTML Source Code with JavaScript
<html>
<head>
<title>JavaScript - Allow only numbers in TextBox (Restrict Alphabets and Special Characters).</title>
<script type="text/javascript">
/*code: 48-57 Numbers
8 - Backspace,
35 - home key, 36 - End key
37-40: Arrow keys, 46 - Delete key*/
function restrictAlphabets(e){
var x=e.which||e.keycode;
if((x>=48 && x<=57) || x==8 ||
(x>=35 && x<=40)|| x==46)
return true;
else
return false;
}
</script>
</head>
<body style="text-align: center;">
<h1>JavaScript - Allow only numbers in TextBox (Restrict Alphabets and Special Characters).</h1>
<big>Enter numbers only: </big>
<input type="text" onkeypress='return restrictAlphabets(event)'/>
</body>
</html>
>>> ["foo", "bar", "baz"].index("bar")
1
Reference: Data Structures > More on Lists
Note that while this is perhaps the cleanest way to answer the question as asked, index
is a rather weak component of the list
API, and I can't remember the last time I used it in anger. It's been pointed out to me in the comments that because this answer is heavily referenced, it should be made more complete. Some caveats about list.index
follow. It is probably worth initially taking a look at the documentation for it:
list.index(x[, start[, end]])
Return zero-based index in the list of the first item whose value is equal to x. Raises a
ValueError
if there is no such item.The optional arguments start and end are interpreted as in the slice notation and are used to limit the search to a particular subsequence of the list. The returned index is computed relative to the beginning of the full sequence rather than the start argument.
An index
call checks every element of the list in order, until it finds a match. If your list is long, and you don't know roughly where in the list it occurs, this search could become a bottleneck. In that case, you should consider a different data structure. Note that if you know roughly where to find the match, you can give index
a hint. For instance, in this snippet, l.index(999_999, 999_990, 1_000_000)
is roughly five orders of magnitude faster than straight l.index(999_999)
, because the former only has to search 10 entries, while the latter searches a million:
>>> import timeit
>>> timeit.timeit('l.index(999_999)', setup='l = list(range(0, 1_000_000))', number=1000)
9.356267921015387
>>> timeit.timeit('l.index(999_999, 999_990, 1_000_000)', setup='l = list(range(0, 1_000_000))', number=1000)
0.0004404920036904514
A call to index
searches through the list in order until it finds a match, and stops there. If you expect to need indices of more matches, you should use a list comprehension, or generator expression.
>>> [1, 1].index(1)
0
>>> [i for i, e in enumerate([1, 2, 1]) if e == 1]
[0, 2]
>>> g = (i for i, e in enumerate([1, 2, 1]) if e == 1)
>>> next(g)
0
>>> next(g)
2
Most places where I once would have used index
, I now use a list comprehension or generator expression because they're more generalizable. So if you're considering reaching for index
, take a look at these excellent Python features.
A call to index
results in a ValueError
if the item's not present.
>>> [1, 1].index(2)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: 2 is not in list
If the item might not be present in the list, you should either
item in my_list
(clean, readable approach), orindex
call in a try/except
block which catches ValueError
(probably faster, at least when the list to search is long, and the item is usually present.)add ExcelUtility class to your project and enjoy it.
ExcelUtility.cs File content:
using System;
using Microsoft.Office.Interop.Excel;
static class ExcelUtility
{
public static void WriteArray<T>(this _Worksheet sheet, int startRow, int startColumn, T[,] array)
{
var row = array.GetLength(0);
var col = array.GetLength(1);
Range c1 = (Range) sheet.Cells[startRow, startColumn];
Range c2 = (Range) sheet.Cells[startRow + row - 1, startColumn + col - 1];
Range range = sheet.Range[c1, c2];
range.Value = array;
}
public static bool SaveToExcel<T>(T[,] data, string path)
{
try
{
//Start Excel and get Application object.
var oXl = new Application {Visible = false};
//Get a new workbook.
var oWb = (_Workbook) (oXl.Workbooks.Add(""));
var oSheet = (_Worksheet) oWb.ActiveSheet;
//oSheet.WriteArray(1, 1, bufferData1);
oSheet.WriteArray(1, 1, data);
oXl.Visible = false;
oXl.UserControl = false;
oWb.SaveAs(path, XlFileFormat.xlWorkbookDefault, Type.Missing,
Type.Missing, false, false, XlSaveAsAccessMode.xlNoChange,
Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
oWb.Close(false);
oXl.Quit();
}
catch (Exception e)
{
return false;
}
return true;
}
}
usage :
var data = new[,]
{
{11, 12, 13, 14, 15, 16, 17, 18, 19, 20},
{21, 22, 23, 24, 25, 26, 27, 28, 29, 30},
{31, 32, 33, 34, 35, 36, 37, 38, 39, 40}
};
ExcelUtility.SaveToExcel(data, "test.xlsx");
Best Regards!
array_merge()
is more efficient but there are a couple of options:
$array1 = array("id1" => "value1");
$array2 = array("id2" => "value2", "id3" => "value3", "id4" => "value4");
$array3 = array_merge($array1, $array2/*, $arrayN, $arrayN*/);
$array4 = $array1 + $array2;
echo '<pre>';
var_dump($array3);
var_dump($array4);
echo '</pre>';
// Results:
array(4) {
["id1"]=>
string(6) "value1"
["id2"]=>
string(6) "value2"
["id3"]=>
string(6) "value3"
["id4"]=>
string(6) "value4"
}
array(4) {
["id1"]=>
string(6) "value1"
["id2"]=>
string(6) "value2"
["id3"]=>
string(6) "value3"
["id4"]=>
string(6) "value4"
}
The better option if you cannot control user input, it is to establish the css property, overflow:hidden, so if the string is superior to the width, it will not deform the design.
Edited:
I like the answer: "word-wrap: break-word", and for those browsers that do not support it, for example, IE6 or IE7, I would use my solution.
SQL keywords are case insensitive themselves.
Names of tables, columns etc, have a case sensitivity which is database dependent - you should probably assume that they are case sensitive unless you know otherwise (In many databases they aren't though; in MySQL table names are SOMETIMES case sensitive but most other names are not).
Comparing data using =, >, < etc, has a case awareness which is dependent on the collation settings which are in use on the individual database, table or even column in question. It's normal however, to keep collation fairly consistent within a database. We have a few columns which need to store case-sensitive values; they have a collation specifically set.
I think that moving last operator to the beginning of the next line is a good practice. That way you know right away the purpose of the second line, even it doesn't start with an operator. I also recommend 2 indentation spaces (2 tabs) for a previously broken tab, to differ it from the normal indentation. That is immediately visible as continuing previous line. Therefore I suggest this:
private static final Map<Class<? extends Persistent>, PersistentHelper> class2helper
= new HashMap<Class<? extends Persistent>, PersistentHelper>();
I've implemented a sqlite table schema parser in PHP, you may check here: https://github.com/c9s/LazyRecord/blob/master/src/LazyRecord/TableParser/SqliteTableDefinitionParser.php
You can use this definition parser to parse the definitions like the code below:
$parser = new SqliteTableDefinitionParser;
$parser->parseColumnDefinitions('x INTEGER PRIMARY KEY, y DOUBLE, z DATETIME default \'2011-11-10\', name VARCHAR(100)');
Since Java 13 you have formatted
1 method on String, which was added along with text blocks as a preview feature 2.
You can use it instead of String.format()
Assertions.assertEquals(
"%s %d %.3f".formatted("foo", 123, 7.89),
"foo 123 7.890"
);
I had a the same error and solved it after moving initialization of formBuilder
from ngOnInit
to constructor.
Generally, as long as your log4j.properties file is on the classpath, Log4j should just automatically pick it up at JVM startup.
This post was helpful, but just wanted to share a slight alternative that may help others:
Setting max-height
instead of height
also does the trick. In my case, I'm disabling scrolling based on a class toggle. Setting .someContainer {height: 100%; overflow: hidden;}
when the container's height is smaller than that of the viewport would stretch the container, which wouldn't be what you'd want. Setting max-height
accounts for this, but if the container's height is greater than the viewport's when the content changes, still disables scrolling.
My code, efficient without tables or additional variables:
SELECT
((SUBSTRING_INDEX(SUBSTRING_INDEX(group_concat(val order by val), ',', floor(1+((count(val)-1) / 2))), ',', -1))
+
(SUBSTRING_INDEX(SUBSTRING_INDEX(group_concat(val order by val), ',', ceiling(1+((count(val)-1) / 2))), ',', -1)))/2
as median
FROM table;
If you prefer Guava...
String myString = ...;
String capWords = Joiner.on(' ').join(Iterables.transform(Splitter.on(' ').omitEmptyStrings().split(myString), new Function<String, String>() {
public String apply(String input) {
return Character.toUpperCase(input.charAt(0)) + input.substring(1);
}
}));
Hans Passant was correct, I added a handler for AppDomain.CurrentDomain.UnhandledException as described here http://msdn.microsoft.com/en-us/library/system.appdomain.unhandledexception(v=vs.71).aspx I was able to find the exception that was occurring and corrected it.
You need a different seed at every execution.
You can start to call at the beginning of your program:
srand(time(NULL));
Note that % 10
yields a result from 0
to 9
and not from 1
to 10
: just add 1
to your %
expression to get 1
to 10
.
The NativeHeap can be increasded by -XX:MaxDirectMemorySize=256M (default is 128)
I've never used it. Maybe you'll find it useful.
This is an old question, but is still regularly viewed/needed. I want to post to caution readers like me that whitespace as mentioned in the OP's question is not the same as Regex's definition, to include newlines, tabs, and space characters -- Git asks you to be explicit. See some options here: https://git-scm.com/book/en/v2/Customizing-Git-Git-Configuration
As stated, git diff -b
or git diff --ignore-space-change
will ignore spaces at line ends. If you desire that setting to be your default behavior, the following line adds that intent to your .gitconfig file, so it will always ignore the space at line ends:
git config --global core.whitespace trailing-space
In my case, I found this question because I was interested in ignoring "carriage return whitespace differences", so I needed this:
git diff --ignore-cr-at-eol
or
git config --global core.whitespace cr-at-eol
from here.
You can also make it the default only for that repo by omitting the --global parameter, and checking in the settings file for that repo. For the CR problem I faced, it goes away after check-in if warncrlf or autocrlf = true in the [core] section of the .gitconfig file.
In my case, it kept on restarting as soon as I killed the process using PID. Also brew stop
command didn't work as I installed without using homebrew. Then I went to mac system preferences and we have MySQL installed there. Just open it and stop the MySQL server and you're done. Here in the screenshot, you can find MySQL in bottom of system preferences.
If you want to link, say, libapplejuice statically, but not, say, liborangejuice, you can link like this:
gcc object1.o object2.o -Wl,-Bstatic -lapplejuice -Wl,-Bdynamic -lorangejuice -o binary
There's a caveat -- if liborangejuice
uses libapplejuice
, then libapplejuice
will be dynamically linked too.
You'll have to link liborangejuice
statically alongside with libapplejuice
to get libapplejuice
static.
And don't forget to keep -Wl,-Bdynamic
else you'll end up linking everything static, including libc
(which isn't a good thing to do).
Machines don't understand English or any other languages, they understand only byte code, which they have to be compiled (e.g., C/C++, Java) or interpreted (e.g., Ruby, Python), the .pyc is a cached version of the byte code. https://www.geeksforgeeks.org/difference-between-compiled-and-interpreted-language/ Here is a quick read on what is the difference between compiled language vs interpreted language, TLDR is interpreted language does not require you to compile all the code before run time and thus most of the time they are not strict on typing etc.
There should be only one localhost defined, check sites-enabled or nginx.conf.
Example
[class*='section-']:not(.section-name) {
@include opacity(0.6);
// Write your css code here
}
// Opacity 0.6 all "section-" but not "section-name"
Neat and clean:
import java.io.File;
public class RevCreateDirectory {
public void revCreateDirectory() {
//To create single directory/folder
File file = new File("D:\\Directory1");
if (!file.exists()) {
if (file.mkdir()) {
System.out.println("Directory is created!");
} else {
System.out.println("Failed to create directory!");
}
}
//To create multiple directories/folders
File files = new File("D:\\Directory2\\Sub2\\Sub-Sub2");
if (!files.exists()) {
if (files.mkdirs()) {
System.out.println("Multiple directories are created!");
} else {
System.out.println("Failed to create multiple directories!");
}
}
}
}
correct syntax for mysql insert into statement using post method is:
$sql="insert into ttable(username,password) values('$_POST[username]','$_POST[password]')";
If you want to get the values of all checkboxes using jQuery, this might help you. This will parse the list and depending on the desired result, you can execute other code. BTW, for this purpose, one does not need to name the input with brackets []. I left them off.
$(document).on("change", ".messageCheckbox", function(evnt){
var data = $(".messageCheckbox");
data.each(function(){
console.log(this.defaultValue, this.checked);
// Do something...
});
}); /* END LISTENER messageCheckbox */
The other answers here adequately explain the security caveats which are also mentioned in the subprocess
documentation. But in addition to that, the overhead of starting a shell to start the program you want to run is often unnecessary and definitely silly for situations where you don't actually use any of the shell's functionality. Moreover, the additional hidden complexity should scare you, especially if you are not very familiar with the shell or the services it provides.
Where the interactions with the shell are nontrivial, you now require the reader and maintainer of the Python script (which may or may not be your future self) to understand both Python and shell script. Remember the Python motto "explicit is better than implicit"; even when the Python code is going to be somewhat more complex than the equivalent (and often very terse) shell script, you might be better off removing the shell and replacing the functionality with native Python constructs. Minimizing the work done in an external process and keeping control within your own code as far as possible is often a good idea simply because it improves visibility and reduces the risks of -- wanted or unwanted -- side effects.
Wildcard expansion, variable interpolation, and redirection are all simple to replace with native Python constructs. A complex shell pipeline where parts or all cannot be reasonably rewritten in Python would be the one situation where perhaps you could consider using the shell. You should still make sure you understand the performance and security implications.
In the trivial case, to avoid shell=True
, simply replace
subprocess.Popen("command -with -options 'like this' and\\ an\\ argument", shell=True)
with
subprocess.Popen(['command', '-with','-options', 'like this', 'and an argument'])
Notice how the first argument is a list of strings to pass to execvp()
, and how quoting strings and backslash-escaping shell metacharacters is generally not necessary (or useful, or correct).
Maybe see also When to wrap quotes around a shell variable?
If you don't want to figure this out yourself, the shlex.split()
function can do this for you. It's part of the Python standard library, but of course, if your shell command string is static, you can just run it once, during development, and paste the result into your script.
As an aside, you very often want to avoid Popen
if one of the simpler wrappers in the subprocess
package does what you want. If you have a recent enough Python, you should probably use subprocess.run
.
check=True
it will fail if the command you ran failed.stdout=subprocess.PIPE
it will capture the command's output.text=True
(or somewhat obscurely, with the synonym universal_newlines=True
) it will decode output into a proper Unicode string (it's just bytes
in the system encoding otherwise, on Python 3).If not, for many tasks, you want check_output
to obtain the output from a command, whilst checking that it succeeded, or check_call
if there is no output to collect.
I'll close with a quote from David Korn: "It's easier to write a portable shell than a portable shell script." Even subprocess.run('echo "$HOME"', shell=True)
is not portable to Windows.
There are MYSQL functions you can use. Like this one that resolves the user:
SELECT USER();
This will return something like root@localhost
so you get the host and the user.
To get the current database run this statement:
SELECT DATABASE();
Other useful functions can be found here: http://dev.mysql.com/doc/refman/5.0/en/information-functions.html
The accepted answer is good if that function is in your code and you can modify it. But sometimes you have to use an object and a function from some external library and you can't change the property and function definition. Then you can just use a temporary variable.
var phone = Client.WorkPhone;
GetString(input, ref phone);
Client.WorkPhone = phone;
Here is what I learned in last 17 hours which solved my problem while searching for a similar solution.
resources:
http://php.net/manual/en/language.types.array.php
Specific Code :
// The following is okay, as it's inside a string. Constants are not looked for
// within strings, so no E_NOTICE occurs here
print "Hello $arr[fruit]"; // Hello apple
What I took from above, $arr[fruit] can go inside " " (double quotes) and be accepted as string by PHP for further processing.
Second Resource is the code in one of the answers above:
file_put_contents($file, print_r($array, true), FILE_APPEND)
This is the second thing I didn't knew, FILE_APPEND.
What I was trying to achieve is get contents from a file, edit desired data and update the file with new data but after deleting old data.
Now I only need to know how to delete data from file before adding updated data.
About other solutions:
Just so that it may be helpful to other people; when I tried var_export or Print_r or Serialize or Json.Encode, I either got special characters like => or ; or ' or [] in the file or some kind of error. Tried too many things to remember all errors. So if someone may want to try them again (may have different scenario than mine), they may expect errors.
About reading file, editing and updating:
I used fgets() function to load file array into a variable ($array) and then use unset($array[x]) (where x stands for desired array number, 1,2,3 etc) to remove particular array. Then use array_values() to re-index and load the array into another variable and then use a while loop and above solutions to dump the array (without any special characters) into target file.
$x=0;
while ($x <= $lines-1) //$lines is count($array) i.e. number of lines in array $array
{
$txt= "$array[$x]";
file_put_contents("file.txt", $txt, FILE_APPEND);
$x++;
}
Python includes two functions in the math
package; radians
converts degrees to radians, and degrees
converts radians to degrees.
To match the output of your calculator you need:
>>> math.cos(math.radians(1))
0.9998476951563913
Note that all of the trig functions convert between an angle and the ratio of two sides of a triangle. cos, sin, and tan take an angle in radians as input and return the ratio; acos, asin, and atan take a ratio as input and return an angle in radians. You only convert the angles, never the ratios.
UPDATED:
TO NOT HAVE ANY
b
and quotes at first and endHow to convert
bytes
as seen to strings, even in weird situations.
As your code may have unrecognizable characters to 'utf-8'
encoding,
it's better to use just str without any additional parameters:
some_bad_bytes = b'\x02-\xdfI#)'
text = str( some_bad_bytes )[2:-1]
print(text)
Output: \x02-\xdfI
if you add 'utf-8'
parameter, to these specific bytes, you should receive error.
As PYTHON 3 standard says, text
would be in utf-8 now with no concern.
map.put(key, map.get(key) + 1);
should be fine. It will update the value for the existing mapping. Note that this uses auto-boxing. With the help of map.get(key)
we get the value of corresponding key, then you can update with your requirement. Here I am updating to increment value by 1.
This works:
SELECT STR_TO_DATE(dateColumn, '%c/%e/%Y %r') FROM tabbleName WHERE 1
Add -fPIC
at the end of CMAKE_CXX_FLAGS
and CMAKE_C_FLAG
Example:
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall --std=c++11 -O3 -fPIC" )
set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -O3 -fPIC" )
This solved my issue.
Even better!
jQuery( "#dialog" ).attr('title', 'Error');
jQuery( "#dialog" ).text('You forgot to enter your first name');
try this, will work.
Thread[] threads = new Thread[10];
List<Thread> allThreads = new ArrayList<Thread>();
for(Thread thread : threads){
if(null != thread){
if(thread.isAlive()){
allThreads.add(thread);
}
}
}
while(!allThreads.isEmpty()){
Iterator<Thread> ite = allThreads.iterator();
while(ite.hasNext()){
Thread thread = ite.next();
if(!thread.isAlive()){
ite.remove();
}
}
}