I tried all settings mentioned in this post to build my project successfully however that didn't work for me. At last I was able to build my project successfully with mvn -DargLine=-Dfile.encoding=UTF-8 clean insall
command.
There are multiple classes that are grouped together as "numeric" classes, the 2 most common of which are double (for double precision floating point numbers) and integer. R will automatically convert between the numeric classes when needed, so for the most part it does not matter to the casual user whether the number 3 is currently stored as an integer or as a double. Most math is done using double precision, so that is often the default storage.
Sometimes you may want to specifically store a vector as integers if you know that they will never be converted to doubles (used as ID values or indexing) since integers require less storage space. But if they are going to be used in any math that will convert them to double, then it will probably be quickest to just store them as doubles to begin with.
Kept having to return here to look up pg_get_viewdef
(how to remember that!!), so searched for a more memorable command... and got it:
\d+ viewname
You can see similar sorts of commands by typing \?
at the pgsql command line.
Bonus tip: The emacs command sql-postgres
makes pgsql a lot more pleasant (edit, copy, paste, command history).
I recognize that the answer works and has been accepted but there is a much cleaner way to write that query. Tested on mysql and postgres.
SELECT wpoi.order_id As No_Commande
FROM wp_woocommerce_order_items AS wpoi
LEFT JOIN wp_postmeta AS wpp ON wpoi.order_id = wpp.post_id
AND wpp.meta_key = '_shipping_first_name'
WHERE wpoi.order_id =2198
Yes, return
stops execution and exits the function. return
always** exits its function immediately, with no further execution if it's inside a for loop.
It is easily verified for yourself:
function returnMe() {
for (var i = 0; i < 2; i++) {
if (i === 1) return i;
}
}
console.log(returnMe());
_x000D_
** Notes: See this other answer about the special case of try/catch/finally
and this answer about how forEach loops has its own function scope will not break out of the containing function.
How to use an IF statement in the MySQL "select list":
select if (1>2, 2, 3); //returns 3
select if(1<2,'yes','no'); //returns yes
SELECT IF(STRCMP('test','test1'),'no','yes'); //returns no
How to use an IF statement in the MySQL where clause search condition list:
create table penguins (id int primary key auto_increment, name varchar(100))
insert into penguins (name) values ('rico')
insert into penguins (name) values ('kowalski')
insert into penguins (name) values ('skipper')
select * from penguins where 3 = id
-->3 skipper
select * from penguins where (if (true, 2, 3)) = id
-->2 kowalski
How to use an IF statement in the MySQL "having clause search conditions":
select * from penguins
where 1=1
having (if (true, 2, 3)) = id
-->1 rico
Use an IF statement with a column used in the select list to make a decision:
select (if (id = 2, -1, 1)) item
from penguins
where 1=1
--> 1
--> -1
--> 1
If statements embedded in SQL queries is a bad "code smell". Bad code has high "WTF's per minute" during code review. This is one of those things. If I see this in production with your name on it, I'm going to automatically not like you.
Did you set your JAVA_HOME
I've spent on this problem much time and as for me (for Intellij IDEA) the solution is to specify right path to res directory:
And don't forget to check all the paths in this tab!
I hope it will be helpful for somebody!
First you must select the parent element and set :nth-of-type(n)
for the parent and then select the element you want. something like this :
#topmenu li:nth-of-type(2) ul.childUl {
This will select the second submenu from topmenu. #topmenu li
is the parent element.
HTML:
<ul id="topmenu">
<li>
<ul class="childUl">
<li></li>
<li></li>
<li></li>
</ul>
</li>
<li>
<ul class="childUl">
<li></li>
<li></li>
<li></li>
</ul>
</li>
<li>
<ul class="childUl">
<li></li>
<li></li>
<li></li>
</ul>
</li>
Use cURL. This function is an alternative to file_get_contents
.
function url_get_contents ($Url) {
if (!function_exists('curl_init')){
die('CURL is not installed!');
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $Url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$output = curl_exec($ch);
curl_close($ch);
return $output;
}
For SQL Server, from http://msdn.microsoft.com/en-us/library/ms179859.aspx :
% Any string of zero or more characters.
WHERE title LIKE '%computer%'
finds all book titles with the word 'computer' anywhere in the book title.
_ Any single character.
WHERE au_fname LIKE '_ean'
finds all four-letter first names that end with ean (Dean, Sean, and so on).
[ ] Any single character within the specified range ([a-f]) or set ([abcdef]).
WHERE au_lname LIKE '[C-P]arsen'
finds author last names ending with arsen and starting with any single character between C and P, for example Carsen, Larsen, Karsen, and so on. In range searches, the characters included in the range may vary depending on the sorting rules of the collation.
[^] Any single character not within the specified range ([^a-f]) or set ([^abcdef]).
WHERE au_lname LIKE 'de[^l]%'
all author last names starting with de and where the following letter is not l.
As @ J_F answered in the comments, using {r echo = T, results = 'hide'}
.
I wanted to expand on their answer - there are great resources you can access to determine all possible options for your chunk and output display - I keep a printed copy at my desk!
You can find them either on the RStudio Website under Cheatsheets (look for the R Markdown cheatsheet and R Markdown Reference Guide) or, in RStudio, navigate to the "Help" tab, choose "Cheatsheets", and look for the same documents there.
Finally to set default chunk options, you can run (in your first chunk) something like the following code if you want most chunks to have the same behavior:
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = T,
results = "hide")
```
Later, you can modify the behavior of individual chunks like this, which will replace the default value for just the results option.
```{r analysis, results="markup"}
# code here
```
If the element is position absolutely, then it isn't relative, or in reference to any object - including the page itself. So margin: auto;
can't decide where the middle is.
Its waiting to be told explicitly, using left
and top
where to position itself.
You can still center it programatically, using javascript or somesuch.
As Alex hinted in one of the answers, you could use the ContentNegotiationManagerFactoryBean to set the default content-type to "application/json", but I felt that that approach was not for me.
What I was trying to do was to post a form to a method like this
@RequestMapping(value = "/post/to/me", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE, consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public @ResponseBody MyJsonPOJO handlePostForm(@Valid @ModelAttribute("form") ValidateMeForm form, BindingResult bindingResult) throws ApiException {
What I instead chose to do was to change the "Accept" header of the request from the browser to "application/json", thereby making SpringMVC find my method.
Using the (not yet finalized) Javascript Fetch API:
var form = new FormData();
form.append("myData", "data");
let fetchConfig = {
method: "POST",
body: form,
headers: {"Accept": "application/json"}
};
fetch("/post/to/me", fetchConfig)
.then(... // Javascript Promise API here
Et voilà! Now SpringMVC finds the method, validates the form, and lets you return a JSON POJO.
It can work like that:
var myElement = angular.element( document.querySelector( '#some-id' ) );
You wrap the Document.querySelector()
native Javascript call into the angular.element()
call. So you always get the element in a jqLite or jQuery object, depending whether or not jQuery
is available/loaded.
Official documentation for angular.element
:
If jQuery is available,
angular.element
is an alias for thejQuery
function. If jQuery is not available,angular.element
delegates to Angulars built-in subset ofjQuery
, that called "jQuery lite" or jqLite.All element references in
Angular
are always wrapped with jQuery orjqLite
(such as the element argument in a directives compile or link function). They are never rawDOM
references.
In case you do wonder why to use document.querySelector()
, please read this answer.
One also may use the following to catch the errors:
$.ajax({
url: url,
success: function (data) {
// Handle success here
$('#editor-content-container').html(data);
$('#editor-container').modal('show');
},
cache: false
}).fail(function (jqXHR, textStatus, error) {
// Handle error here
$('#editor-content-container').html(jqXHR.responseText);
$('#editor-container').modal('show');
});
A much simpler solution to this problem that allows letters, numbers and words as the label is the following code. More specifically, the line of code starting with "icon:". Any string or variable could be substituted for 'k'.
for (i = 0; i < locations.length; i++)
{
k = i + 1;
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map,
icon: 'http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld=' + k + '|FF0000|000000'
});
--- the locations array holds the lat and long and k is the row number for the address I was mapping. In other words if I had a 100 addresses to map my marker labels would be 1 to 100.
For Python 3 you could try using quote
instead of quote_plus
:
import urllib.parse
print(urllib.parse.quote("http://www.sample.com/"))
Result:
http%3A%2F%2Fwww.sample.com%2F
Or:
from requests.utils import requote_uri
requote_uri("http://www.sample.com/?id=123 abc")
Result:
'https://www.sample.com/?id=123%20abc'
A simple way if you want to scroll down specific element
Call this function whenever you want to scroll down.
function scrollDown() {_x000D_
document.getElementById('scroll').scrollTop = document.getElementById('scroll').scrollHeight_x000D_
}
_x000D_
ul{_x000D_
height: 100px;_x000D_
width: 200px;_x000D_
overflow-y: scroll;_x000D_
border: 1px solid #000;_x000D_
}
_x000D_
<ul id='scroll'>_x000D_
<li>Top Here</li>_x000D_
<li>Something Here</li>_x000D_
<li>Something Here</li>_x000D_
<li>Something Here</li>_x000D_
<li>Something Here</li>_x000D_
<li>Something Here</li>_x000D_
<li>Something Here</li>_x000D_
<li>Something Here</li>_x000D_
<li>Something Here</li>_x000D_
<li>Something Here</li>_x000D_
<li>Bottom Here</li>_x000D_
<li style="color: red">Bottom Here</li>_x000D_
</ul>_x000D_
_x000D_
<br />_x000D_
_x000D_
<button onclick='scrollDown()'>Scroll Down</button>
_x000D_
finally done with
GROUP BY
DATEPART(YEAR, DT.[Date]),
DATEPART(MONTH, DT.[Date]),
DATEPART(DAY, DT.[Date]),
DATEPART(HOUR, DT.[Date]),
(DATEPART(MINUTE, DT.[Date]) / 10)
I'm sure there's a better way to achieve this and I would like to read about it, but a workaround I can think of is this:
rm
'ed directory to the original machine (ssh, ftp, whatever).pip uninstall
the package (should work again then).But, yes, I'd also love to hear about a decent solution for this situation.
Yes by using spring-boot with hibernate configuration files we can persist the data to the database. keep hibernating .cfg.xml in your src/main/resources folder for reading the configurations related to database.
You simply use this in one row.
$query = $this->db->get_where('mytable',array('id'=>'3'));
I think the best solution is resize the images via script or locally and upload them again. Remember, you're forcing your viewers to download larger files than they need
Since you are using Java, printf
is available from version 1.5
You may use it like this
System.out.printf("%03d ", x);
For Example:
System.out.printf("%03d ", 5);
System.out.printf("%03d ", 55);
System.out.printf("%03d ", 555);
Will Give You
005 055 555
as output
See: System.out.printf
and Format String Syntax
your string is NOT a valid json to start with.
a valid json will be,
{
"area": [
{
"area": "kothrud"
},
{
"area": "katraj"
}
]
}
if you do a json_decode
, it will yield,
stdClass Object
(
[area] => Array
(
[0] => stdClass Object
(
[area] => kothrud
)
[1] => stdClass Object
(
[area] => katraj
)
)
)
Update: to use
$string = '
{
"area": [
{
"area": "kothrud"
},
{
"area": "katraj"
}
]
}
';
$area = json_decode($string, true);
foreach($area['area'] as $i => $v)
{
echo $v['area'].'<br/>';
}
Output:
kothrud
katraj
Update #2:
for that true
:
When TRUE, returned objects will be converted into associative arrays. for more information, click here
Change your object.
var top_brands = [
{ key: 'Adidas', value: 100 },
{ key: 'Nike', value: 50 }
];
var $brand_options = $("#top-brands");
$.each(top_brands, function(brand) {
$brand_options.append(
$("<option />").val(brand.key).text(brand.key + " " + brand.value)
);
});
As a rule of thumb:
'Adidas'
, 'Nike'
, 100
and 50
are data.There are no semantics in {Nike: 50}
. What's "Nike"? What's 50?
{key: 'Nike', value: 50}
is a little better, since now you can iterate an array of these objects and values are at predictable places. This makes it easy to write code that handles them.
Better still would be {vendor: 'Nike', itemsSold: 50}
, because now values are not only at predictable places, they also have meaningful names. Technically that's the same thing as above, but now a person would also understand what the values are supposed to mean.
You now can do this with Flexbox justify-content: flex-end
now:
div {_x000D_
display: flex;_x000D_
justify-content: flex-end;_x000D_
align-items: flex-end;_x000D_
width: 150px;_x000D_
height: 150px;_x000D_
border: solid 1px red;_x000D_
}_x000D_
_x000D_
<div>_x000D_
Something to align_x000D_
</div>
_x000D_
Consult your Caniuse to see if Flexbox is right for you.
I would try to avoid inserting empty lists in the first place, but, would generally use:
d = {k: v for k,v in d.iteritems() if v} # re-bind to non-empty
If prior to 2.7:
d = dict( (k, v) for k,v in d.iteritems() if v )
or just:
empty_key_vals = list(k for k in k,v in d.iteritems() if v)
for k in empty_key_vals:
del[k]
Its much better to use java.util.LinkedList, because it's probably much more optimized, than the one that you will write.
I love this question - it's like asking "what should I learn first, snowboarding or skiing"? I think it depends if you want to snowboard or to ski. If you want to do both, you have to learn both.
In both sports, you slide down a hill on snow using devices that are sufficiently similar to provoke this question. However, they are also sufficiently different so that learning one does not help you much with the other. Same thing with C and C++. While they appear to be languages sufficiently similar in syntax, the mind set that you need for writing OO code vs procedural code is sufficiently different so that you pretty much have to start from the beginning, whatever language you learn second.
The solution by "Mark Seagoe" worked for me too. I got a message that "Port 443 in use by Unable to open process with PID 14508". So i opened task manager and killed this process 14508. This was used by my previous xampp version and it was orphaned.
so no need to change any ports or anything, this is a simple two step process and it worked .
I found this shorter and much better:
if(varName !== (undefined || null)) { //do something }
A very general command prompt how to for java is
javac mainjava.java
java mainjava
You'll very often see people doing
javac *.java
java mainjava
As for the subclass problem that's probably occurring because a path is missing from your class path, the -c flag I believe is used to set that.
Goto my blog : retrofit with kotlin
the link below explains everything step by step.
http://loopj.com/android-async-http/
Here are sample apps:
Create a class :
public class HttpUtils {
private static final String BASE_URL = "http://api.twitter.com/1/";
private static AsyncHttpClient client = new AsyncHttpClient();
public static void get(String url, RequestParams params, AsyncHttpResponseHandler responseHandler) {
client.get(getAbsoluteUrl(url), params, responseHandler);
}
public static void post(String url, RequestParams params, AsyncHttpResponseHandler responseHandler) {
client.post(getAbsoluteUrl(url), params, responseHandler);
}
public static void getByUrl(String url, RequestParams params, AsyncHttpResponseHandler responseHandler) {
client.get(url, params, responseHandler);
}
public static void postByUrl(String url, RequestParams params, AsyncHttpResponseHandler responseHandler) {
client.post(url, params, responseHandler);
}
private static String getAbsoluteUrl(String relativeUrl) {
return BASE_URL + relativeUrl;
}
}
Call Method :
RequestParams rp = new RequestParams();
rp.add("username", "aaa"); rp.add("password", "aaa@123");
HttpUtils.post(AppConstant.URL_FEED, rp, new JsonHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, JSONObject response) {
// If the response is JSONObject instead of expected JSONArray
Log.d("asd", "---------------- this is response : " + response);
try {
JSONObject serverResp = new JSONObject(response.toString());
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public void onSuccess(int statusCode, Header[] headers, JSONArray timeline) {
// Pull out the first event on the public timeline
}
});
Please grant internet permission in your manifest file.
<uses-permission android:name="android.permission.INTERNET" />
you can add compile 'com.loopj.android:android-async-http:1.4.9'
for Header[]
and compile 'org.json:json:20160212'
for JSONObject
in build.gradle file if required.
why does the Text take up the full space of the View, instead of just the space for "Hello"?
Because the View
is a flex container and by default has flexDirection: 'column'
and alignItems: 'stretch'
, which means that its children should be stretched out to fill its width.
(Note, per the docs, that all components in React Native are display: 'flex'
by default and that display: 'inline'
does not exist at all. In this way, the default behaviour of a Text
within a View
in React Native differs from the default behaviour of span
within a div
on the web; in the latter case, the span would not fill the width of the div
because a span
is an inline element by default. There is no such concept in React Native.)
How can the Text be floated / aligned to the right?
The float
property doesn't exist in React Native, but there are loads of options available to you (with slightly different behaviours) that will let you right-align your text. Here are the ones I can think of:
textAlign: 'right'
on the Text
element<View>
<Text style={{textAlign: 'right'}}>Hello, World!</Text>
</View>
(This approach doesn't change the fact that the Text
fills the entire width of the View
; it just right-aligns the text within the Text
.)
alignSelf: 'flex-end'
on the Text
<View>
<Text style={{alignSelf: 'flex-end'}}>Hello, World!</Text>
</View>
This shrinks the Text
element to the size required to hold its content and puts it at the end of the cross direction (the horizontal direction, by default) of the View
.
alignItems: 'flex-end'
on the View
<View style={{alignItems: 'flex-end'}}>
<Text>Hello, World!</Text>
</View>
This is equivalent to setting alignSelf: 'flex-end'
on all the View
's children.
flexDirection: 'row'
and justifyContent: 'flex-end'
on the View
<View style={{flexDirection: 'row', justifyContent: 'flex-end'}}>
<Text>Hello, World!</Text>
</View>
flexDirection: 'row'
sets the main direction of layout to be horizontal instead of vertical; justifyContent
is just like alignItems
, but controls alignment in the main direction instead of the cross direction.
flexDirection: 'row'
on the View
and marginLeft: 'auto'
on the Text
<View style={{flexDirection: 'row'}}>
<Text style={{marginLeft: 'auto'}}>Hello, World!</Text>
</View>
This approach is demonstrated, in the context of the web and real CSS, at https://stackoverflow.com/a/34063808/1709587.
position: 'absolute'
and right: 0
on the Text
:<View>
<Text style={{position: 'absolute', right: 0}}>Hello, World!</Text>
</View>
Like in real CSS, this takes the Text
"out of flow", meaning that its siblings will be able to overlap it and its vertical position will be at the top of the View
by default (although you can explicitly set a distance from the top of the View
using the top
style property).
Naturally, which of these various approaches you want to use - and whether the choice between them even matters at all - will depend upon your precise circumstances.
Use hashes when you only need to go one way. For example, for passwords in a system, you use hashing because you will only ever verify that the value a user entered, after hashing, matches the value in your repository. With encryption, you can go two ways.
hashing algorithms and encryption algorithms are just mathematical algorithms. So in that respect they are not different -- its all just mathematical formulas. Semantics wise, though, there is the very big distinction between hashing (one-way) and encryption(two-way). Why are hashes irreversible? Because they are designed to be that way, because sometimes you want a one-way operation.
You will need to import the other file as a module like this:
import Math
If you don't want to prefix your Calculate
function with the module name then do this:
from Math import Calculate
If you want to import all members of a module then do this:
from Math import *
Edit: Here is a good chapter from Dive Into Python that goes a bit more in depth on this topic.
Check your paths: If you are using a separate build server for TFS (most likely), make sure that all your paths in the .csproj file match the TFS server paths. I got the above error when checking in the *.csproj file when it had references to my development machine paths and not the TFS server paths.
Remove multi-line commands: Also, try and remove multi-line commands into single-line commands in xml as a precaution. I had the following xml in the *.proj that caused issues in TFS:
<Exec Condition="bl.."
Command=" Blah...
..." </Exec>
Changing the above xml to this worked:
<Exec Condition="bl.." Command=" Blah..." </Exec>
Another possible solution with JS
function onSelect(e) {
if (e.files.length > 5) {
alert("Only 5 files accepted.");
e.preventDefault();
}
}
You can use following code:
$course_description = nl2br($_POST["course_description"]);
$course_description = trim($course_description);
First Record should be add
"_id" = 1 in your db
$database = "demo";
$collections ="democollaction";
echo getnextid($database,$collections);
function getnextid($database,$collections){
$m = new MongoClient();
$db = $m->selectDB($database);
$cursor = $collection->find()->sort(array("_id" => -1))->limit(1);
$array = iterator_to_array($cursor);
foreach($array as $value){
return $value["_id"] + 1;
}
}
Where it is documented:
From the API documentation under the has_many association in "Module ActiveRecord::Associations::ClassMethods"
collection.build(attributes = {}, …) Returns one or more new objects of the collection type that have been instantiated with attributes and linked to this object through a foreign key, but have not yet been saved. Note: This only works if an associated object already exists, not if it‘s nil!
The answer to building in the opposite direction is a slightly altered syntax. In your example with the dogs,
Class Dog
has_many :tags
belongs_to :person
end
Class Person
has_many :dogs
end
d = Dog.new
d.build_person(:attributes => "go", :here => "like normal")
or even
t = Tag.new
t.build_dog(:name => "Rover", :breed => "Maltese")
You can also use create_dog to have it saved instantly (much like the corresponding "create" method you can call on the collection)
How is rails smart enough? It's magic (or more accurately, I just don't know, would love to find out!)
Adding to the answer from E_8.
This does not work if you have empty strings.
You can get around this by modifying your select statement in SQL or modifying your query in the SSRS dataset.
Select distinct phonenumber
from YourTable
where phonenumber <> ''
Order by Phonenumber
var a = [1,2,3], b = [4,1,5,2];
b.forEach(function(value){
if (a.indexOf(value)==-1) a.push(value);
});
console.log(a);
// [1, 2, 3, 4, 5]
For more details read up on Array.indexOf
.
If you want to rely on jQuery, instead use jQuery.inArray
:
$.each(b,function(value){
if ($.inArray(value,a)==-1) a.push(value);
});
If all your values are simply and uniquely representable as strings, however, you should use an Object instead of an Array, for a potentially massive speed increase (as described in the answer by @JonathanSampson).
You can disable animation, transition, trasforms for all of element in page with this css code
var style = document.createElement('style');
style.type = 'text/css';
style.innerHTML = '* {' +
'/*CSS transitions*/' +
' -o-transition-property: none !important;' +
' -moz-transition-property: none !important;' +
' -ms-transition-property: none !important;' +
' -webkit-transition-property: none !important;' +
' transition-property: none !important;' +
'/*CSS transforms*/' +
' -o-transform: none !important;' +
' -moz-transform: none !important;' +
' -ms-transform: none !important;' +
' -webkit-transform: none !important;' +
' transform: none !important;' +
' /*CSS animations*/' +
' -webkit-animation: none !important;' +
' -moz-animation: none !important;' +
' -o-animation: none !important;' +
' -ms-animation: none !important;' +
' animation: none !important;}';
document.getElementsByTagName('head')[0].appendChild(style);
-u: disabled by default. When activated, an error message is displayed when using an unconfigured variable.
-v: inactive by default. After activation, the original content of the information will be displayed (without variable resolution) before the information is output.
-x: inactive by default. If activated, the command content will be displayed before the command is run (after variable resolution, there is a ++ symbol).
Compare the following differences:
/ # set -v && echo $HOME
/root
/ # set +v && echo $HOME
set +v && echo $HOME
/root
/ # set -x && echo $HOME
+ echo /root
/root
/ # set +x && echo $HOME
+ set +x
/root
/ # set -u && echo $NOSET
/bin/sh: NOSET: parameter not set
/ # set +u && echo $NOSET
I need to detect rotation while using the camera with AVFoundation
, and found that the didRotate
(now deprecated) & willTransition
methods were unreliable for my needs. Using the notification posted by David did work, but is not current for Swift 3.x & above.
The following makes use of a closure, which appears to be Apple's preference going forward.
var didRotate: (Notification) -> Void = { notification in
switch UIDevice.current.orientation {
case .landscapeLeft, .landscapeRight:
print("landscape")
case .portrait, .portraitUpsideDown:
print("Portrait")
default:
print("other (such as face up & down)")
}
}
To set up the notification:
NotificationCenter.default.addObserver(forName: UIDevice.orientationDidChangeNotification,
object: nil,
queue: .main,
using: didRotate)
To tear down the notification:
NotificationCenter.default.removeObserver(self,
name: UIDevice.orientationDidChangeNotification,
object: nil)
Regarding the deprecation statement, my initial comment was misleading, so I wanted to update that. As noted, the usage of @objc
inference has been deprecated, which in turn was needed to use a #selector
. By using a closure instead, this can be avoided and you now have a solution that should avoid a crash due to calling an invalid selector.
In Swift 3, you can use isNavigationBarHidden Property also to show or hide navigation bar
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
// Hide the navigation bar for current view controller
self.navigationController?.isNavigationBarHidden = true;
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
// Show the navigation bar on other view controllers
self.navigationController?.isNavigationBarHidden = false;
}
If you have a _Layout.cshtml view like this
<html>
<body>
@RenderBody()
@RenderSection("scripts", required: false)
</body>
</html>
then you can have an index.cshtml content view like this
@section scripts {
<script type="text/javascript">alert('hello');</script>
}
the required indicates whether or not the view using the layout page must have a scripts section
var leg= $scope.name.length;
$log.info(leg);
jQuery('#main').css('opacity') = '0.6';
should be
jQuery('#main').css('opacity', '0.6');
Update:
http://jsfiddle.net/GegMk/ if you type in the text box. Click away, the opacity changes.
Another option that has not been shown yet is to split your class into two, wrapping a lightweight interface class around your original class in order to achieve the effect you are looking for:
class Test_Base {
public Test_Base() {
DoSomething();
}
};
class Test : public Test_Base {
public Test() : Test_Base() {
}
public Test(int count) : Test_Base() {
DoSomethingWithCount(count);
}
};
This could get messy if you have many constructors that must call their "next level up" counterpart, but for a handful of constructors, it should be workable.
I don't believe that you can achieve this functionality with standard <select>
element.
What i would suggest is to use such way.
http://filamentgroup.com/lab/jquery_ipod_style_and_flyout_menus/
The basic version of it won't take too much space and you can easily bind mouseover
events to sub items to show a nice tooltip.
Hope this helps, Sinan.
For that
See
Then then create the dynamic CSS file as per the detected browser
/***** Selector Hacks ******/
/* IE6 and below */
* html #uno { color: red }
/* IE7 */
*:first-child+html #dos { color: red }
/* IE7, FF, Saf, Opera */
html>body #tres { color: red }
/* IE8, FF, Saf, Opera (Everything but IE 6,7) */
html>/**/body #cuatro { color: red }
/* Opera 9.27 and below, safari 2 */
html:first-child #cinco { color: red }
/* Safari 2-3 */
html[xmlns*=""] body:last-child #seis { color: red }
/* safari 3+, chrome 1+, opera9+, ff 3.5+ */
body:nth-of-type(1) #siete { color: red }
/* safari 3+, chrome 1+, opera9+, ff 3.5+ */
body:first-of-type #ocho { color: red }
/* saf3+, chrome1+ */
@media screen and (-webkit-min-device-pixel-ratio:0) {
#diez { color: red }
}
/* iPhone / mobile webkit */
@media screen and (max-device-width: 480px) {
#veintiseis { color: red }
}
/* Safari 2 - 3.1 */
html[xmlns*=""]:root #trece { color: red }
/* Safari 2 - 3.1, Opera 9.25 */
*|html[xmlns*=""] #catorce { color: red }
/* Everything but IE6-8 */
:root *> #quince { color: red }
/* IE7 */
*+html #dieciocho { color: red }
/* Firefox only. 1+ */
#veinticuatro, x:-moz-any-link { color: red }
/* Firefox 3.0+ */
#veinticinco, x:-moz-any-link, x:default { color: red }
/***** Attribute Hacks ******/
/* IE6 */
#once { _color: blue }
/* IE6, IE7 */
#doce { *color: blue; /* or #color: blue */ }
/* Everything but IE6 */
#diecisiete { color/**/: blue }
/* IE6, IE7, IE8 */
#diecinueve { color: blue\9; }
/* IE7, IE8 */
#veinte { color/*\**/: blue\9; }
/* IE6, IE7 -- acts as an !important */
#veintesiete { color: blue !ie; } /* string after ! can be anything */
Source: http://paulirish.com/2009/browser-specific-css-hacks/
I really hate forms which don't tell me what input(s) is/are missing. So I improve the Dominic's answer - thanks for this.
In the css file set the "borderR" class to border has red color.
$('#<form_id>').submit(function () {
var allIsOk = true;
// Check if empty of not
$(this).find( 'input[type!="hidden"]' ).each(function () {
if ( ! $(this).val() ) {
$(this).addClass('borderR').focus();
allIsOk = false;
}
});
return allIsOk
});
I love extensions when they make the code cleaner:
extension NSUserDefaults {
func clear() {
guard let domainName = NSBundle.mainBundle().bundleIdentifier else {
return
}
self.removePersistentDomainForName(domainName)
}
}
Swift 5
extension UserDefaults {
func clear() {
guard let domainName = Bundle.main.bundleIdentifier else {
return
}
removePersistentDomain(forName: domainName)
synchronize()
}
}
The Control class has HorizontalContentAlignment and VerticalContentAlignment properties. These properties determine how a control’s content fills the space within the control.
Set HorizontalContentAlignment and VerticalContentAlignment to Center.
Inside a <button>
element you can put content, like text or images.
<button type="button">Click Me!</button>
This is the difference between this element and buttons created with the <input>
element.
Here's some examples that demonstrate setting and detecting timeouts in jQuery's old and new paradigmes.
Promise with jQuery 1.8+
Promise.resolve(
$.ajax({
url: '/getData',
timeout:3000 //3 second timeout
})
).then(function(){
//do something
}).catch(function(e) {
if(e.statusText == 'timeout')
{
alert('Native Promise: Failed from timeout');
//do something. Try again perhaps?
}
});
jQuery 1.8+
$.ajax({
url: '/getData',
timeout:3000 //3 second timeout
}).done(function(){
//do something
}).fail(function(jqXHR, textStatus){
if(textStatus === 'timeout')
{
alert('Failed from timeout');
//do something. Try again perhaps?
}
});?
jQuery <= 1.7.2
$.ajax({
url: '/getData',
error: function(jqXHR, textStatus){
if(textStatus === 'timeout')
{
alert('Failed from timeout');
//do something. Try again perhaps?
}
},
success: function(){
//do something
},
timeout:3000 //3 second timeout
});
Notice that the textStatus param (or jqXHR.statusText) will let you know what the error was. This may be useful if you want to know that the failure was caused by a timeout.
error(jqXHR, textStatus, errorThrown)
A function to be called if the request fails. The function receives three arguments: The jqXHR (in jQuery 1.4.x, XMLHttpRequest) object, a string describing the type of error that occurred and an optional exception object, if one occurred. Possible values for the second argument (besides null) are "timeout", "error", "abort", and "parsererror". When an HTTP error occurs, errorThrown receives the textual portion of the HTTP status, such as "Not Found" or "Internal Server Error." As of jQuery 1.5, the error setting can accept an array of functions. Each function will be called in turn. Note: This handler is not called for cross-domain script and JSONP requests.
Use current_url element for Python 2:
print browser.current_url
For Python 3 and later versions of selenium:
print(driver.current_url)
As Minok mentioned, there is no such functionality specified ini C standard or C++ standard. This is considered to be purely OS-specific feature and it is specified in POSIX standard, for example.
Thorsten79 has given good suggestion, it is Boost.Filesystem library. However, it may be inconvenient in case you don't want to have any link-time dependencies in binary form for your program.
A good alternative I would recommend is collection of 100% headers-only STLSoft C++ Libraries Matthew Wilson (author of must-read books about C++). There is portable facade PlatformSTL gives access to system-specific API: WinSTL for Windows and UnixSTL on Unix, so it is portable solution. All the system-specific elements are specified with use of traits and policies, so it is extensible framework. There is filesystem library provided, of course.
I always use this:
function validEmail($email){
// First, we check that there's one @ symbol, and that the lengths are right
if (!preg_match("/^[^@]{1,64}@[^@]{1,255}$/", $email)) {
// Email invalid because wrong number of characters in one section, or wrong number of @ symbols.
return false;
}
// Split it into sections to make life easier
$email_array = explode("@", $email);
$local_array = explode(".", $email_array[0]);
for ($i = 0; $i < sizeof($local_array); $i++) {
if (!preg_match("/^(([A-Za-z0-9!#$%&'*+\/=?^_`{|}~-][A-Za-z0-9!#$%&'*+\/=?^_`{|}~\.-]{0,63})|(\"[^(\\|\")]{0,62}\"))$/", $local_array[$i])) {
return false;
}
}
if (!preg_match("/^\[?[0-9\.]+\]?$/", $email_array[1])) { // Check if domain is IP. If not, it should be valid domain name
$domain_array = explode(".", $email_array[1]);
if (sizeof($domain_array) < 2) {
return false; // Not enough parts to domain
}
for ($i = 0; $i < sizeof($domain_array); $i++) {
if (!preg_match("/^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]+))$/", $domain_array[$i])) {
return false;
}
}
}
return true;
}
box-sizing: border-box;
width: 100%;
padding: 5px;
box-sizing: border box; makes it so that padding, margin and border are included in the width calculations.
put latest jquery cdn on top of your main html page
Like If your main html page is index.html
place jquery cdn on top of this page like this
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("h2").hide();
});
});
</script>
</head>
<body>
<h2>This will hide me</h2>
<button>Click me</button>
</body>
</html>
_x000D_
I'm not sure how you might do this with Node, but the general idea would be to send an HTTP HEAD request to the URL you're interested in.
HEAD
Asks for the response identical to the one that would correspond to a GET request, but without the response body. This is useful for retrieving meta-information written in response headers, without having to transport the entire content.
Something like this, based it on this question:
var cli = require('cli');
var http = require('http');
var url = require('url');
cli.parse();
cli.main(function(args, opts) {
this.debug(args[0]);
var siteUrl = url.parse(args[0]);
var site = http.createClient(80, siteUrl.host);
console.log(siteUrl);
var request = site.request('HEAD', siteUrl.pathname, {'host' : siteUrl.host})
request.end();
request.on('response', function(response) {
response.setEncoding('utf8');
console.log('STATUS: ' + response.statusCode);
response.on('data', function(chunk) {
console.log("DATA: " + chunk);
});
});
});
For future questioners: If you can't drop the tables from the console, try to create a migration that drops the tables for you. You should create a migration and then in the file note tables you want dropped like this:
class DropTables < ActiveRecord::Migration
def up
drop_table :table_you_dont_want
end
def down
raise ActiveRecord::IrreversibleMigration
end
end
You don't need to prevent this error message!
Error messages are your friends!
Without error message you'd never know what is happened.
It's all right! Any working code supposed to throw out error messages.
Though error messages needs proper handling. Usually you don't have to to take any special actions to avoid such an error messages. Just leave your code intact. But if you don't want this error message to be shown to the user, just turn it off. Not error message itself but daislaying it to the user.
ini_set('display_errors',0);
ini_set('log_errors',1);
or even better at .htaccess/php.ini level
And user will never see any error messages. While you will be able still see it in the error log.
Please note that error_reporting should be at max in both cases.
To prevent this message you can check mysql_query result and run fetch_assoc only on success.
But usually nobody uses it as it may require too many nested if's.
But there can be solution too - exceptions!
But it is still not necessary. You can leave your code as is, because it is supposed to work without errors when done.
Using return
is another method to avoid nested error messages. Here is a snippet from my database handling function:
$res = mysql_query($query);
if (!$res) {
trigger_error("dbget: ".mysql_error()." in ".$query);
return false;
}
if (!mysql_num_rows($res)) return NULL;
//fetching goes here
//if there was no errors only
Javascript is a single threaded language, you don't want to block your whole server! Async code eliminates, race conditions by making dependencies explicit.
Learn to love asynchronous code!
Have a look at promises
for asynchronous code without creating a pyramid of callback hell.
I recommend the promiseQ library for node.js
httpGet(url.parse("http://example.org/")).then(function (res) {
console.log(res.statusCode); // maybe 302
return httpGet(url.parse(res.headers["location"]));
}).then(function (res) {
console.log(res.statusCode); // maybe 200
});
EDIT: this is by far my most controversial answer, node now has yield keyword, which allows you to treat async code as if it were sychronous. http://blog.alexmaccaw.com/how-yield-will-transform-node
Check this article for the 5 laws of API dates and times HERE:
More info in the docs.
I'd recommend to use some standard symmetric cypher that is widely available like DES, 3DES or AES. While that is not the most secure algorithm, there are loads of implementations and you'd just need to give the key to anyone that is supposed to decrypt the information in the barcode. javax.crypto.Cipher is what you want to work with here.
Let's assume the bytes to encrypt are in
byte[] input;
Next, you'll need the key and initialization vector bytes
byte[] keyBytes;
byte[] ivBytes;
Now you can initialize the Cipher for the algorithm that you select:
// wrap key data in Key/IV specs to pass to cipher
SecretKeySpec key = new SecretKeySpec(keyBytes, "DES");
IvParameterSpec ivSpec = new IvParameterSpec(ivBytes);
// create the cipher with the algorithm you choose
// see javadoc for Cipher class for more info, e.g.
Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
Encryption would go like this:
cipher.init(Cipher.ENCRYPT_MODE, key, ivSpec);
byte[] encrypted= new byte[cipher.getOutputSize(input.length)];
int enc_len = cipher.update(input, 0, input.length, encrypted, 0);
enc_len += cipher.doFinal(encrypted, enc_len);
And decryption like this:
cipher.init(Cipher.DECRYPT_MODE, key, ivSpec);
byte[] decrypted = new byte[cipher.getOutputSize(enc_len)];
int dec_len = cipher.update(encrypted, 0, enc_len, decrypted, 0);
dec_len += cipher.doFinal(decrypted, dec_len);
To multiply, use mult
for signed multiplication and multu
for unsigned multiplication. Note that the result of the multiplication of two 32-bit numbers yields a 64-number. If you want the result back in $v0
that means that you assume the result will fit in 32 bits.
The 32 most significant bits will be held in the HI
special register (accessible by mfhi
instruction) and the 32 least significant bits will be held in the LO
special register (accessible by the mflo
instruction):
E.g.:
li $a0, 5
li $a1, 3
mult $a0, $a1
mfhi $a2 # 32 most significant bits of multiplication to $a2
mflo $v0 # 32 least significant bits of multiplication to $v0
To divide, use div
for signed division and divu
for unsigned division. In this case, the HI
special register will hold the remainder and the LO
special register will hold the quotient of the division.
E.g.:
div $a0, $a1
mfhi $a2 # remainder to $a2
mflo $v0 # quotient to $v0
You could use the Date.getDay()
method, which returns 0 for sunday, up to 6 for saturday. So, you could simply create an array with the name for the day names:
var days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
var d = new Date(dateString);
var dayName = days[d.getDay()];
Here dateString
is the string you received from the third party API.
Alternatively, if you want the first 3 letters of the day name, you could use the Date
object's built-in toString
method:
var d = new Date(dateString);
var dayName = d.toString().split(' ')[0];
That will take the first word in the d.toString()
output, which will be the 3-letter day name.
Adjusting the currentScale attribute works in IE ( I tested with IE 11), but not in Chrome.
If you just want to see if it's present, try turning the list into a dict:
# Generate a list
l = [n*n for n in range(1000)]
# Convert to dict - doesn't matter what you map values to
d = dict((x, 1) for x in l)
count = 0
for n in range(1000000):
# Compare with "if n in l"
if n in d:
count += 1
On my machine, "if n in l" took 37 seconds, while "if n in d" took 0.4 seconds.
Since PHP 5.5, you can use array_column
:
$ids = array_column($users, 'id');
This is the preferred option on any modern project. However, if you must support PHP<5.5, the following alternatives exist:
Since PHP 5.3, you can use array_map
with an anonymous function, like this:
$ids = array_map(function ($ar) {return $ar['id'];}, $users);
Before (Technically PHP 4.0.6+), you must create an anonymous function with create_function
instead:
$ids = array_map(create_function('$ar', 'return $ar["id"];'), $users);
Just use
File.Copy(filepath, "\\\\192.168.1.28\\Files");
A windows fileshare exposed via a UNC path is treated as part of the file system, and has nothing to do with the web.
The credentials used will be that of the ASP.NET worker process, or any impersonation you've enabled. If you can tweak those to get it right, this can be done.
You may run into problems because you are using the IP address instead of the server name (windows trust settings prevent leaving the domain - by using IP you are hiding any domain details). If at all possible, use the server name!
If this is not on the same windows domain, and you are trying to use a different domain account, you will need to specify the username as "[domain_or_machine]\[username]"
If you need to specify explicit credentials, you'll need to look into coding an impersonation solution.
Check that path to database data files exists ;) :
Sun Nov 06 18:48:37 [initandlisten] exception in initAndListen: 10296 dbpath (/data/db) does not exist, terminating
I solved my problem using entire address where my code is: Before:
if(!exists("foo", mode="function")) source("utils.r")
After:
if(!exists("foo", mode="function")) source("C:/tests/utils.r")
Here’s a more robust answer than the currently accepted one:
jQuery.expr[':'].focus = function(elem) {
return elem === document.activeElement && (elem.type || elem.href);
};
Note that the (elem.type || elem.href)
test was added to filter out false positives like body
. This way, we make sure to filter out all elements except form controls and hyperlinks.
Check this link . You were missing .
before myButton
. It was a small error. :)
.myButton{
background:url(./images/but.png) no-repeat;
cursor:pointer;
border:none;
width:100px;
height:100px;
}
.myButton:active /* use Dot here */
{
background:url(./images/but2.png) no-repeat;
}
I had the following scenario that was causing the same error:
Most files were small in size, however, a few were large, and so attempting to delete those resulted in the cannot access file error.
It was not easy to find, however, the solution was as simple as Waiting "for the task to complete execution":
using (var wc = new WebClient())
{
var tskResult = wc.UploadFileTaskAsync(_address, _fileName);
tskResult.Wait();
}
You should define source code encoding, add this to the top of your script:
# -*- coding: utf-8 -*-
The reason why it works differently in console and in the IDE is, likely, because of different default encodings set. You can check it by running:
import sys
print sys.getdefaultencoding()
Also see:
It would be really weird if that was valid, and I would expect it to be invalid. What should it mean to have one clickable element inside of another clickable element? Which is it -- a button, or a link?
Have you tried the classic, waiting for the load to complete using jQuery's builtin ready function?
$(document).ready(function() {
$('some selector', frames['nameOfMyIframe'].document).doStuff()
} );
K
Wanted to ADD to the other answers described here an additional note, in the case of custom exceptions.
In the case where you create your own custom exception, that derives from std::exception
, when you catch "all possible" exceptions types, you should always start the catch
clauses with the "most derived" exception type that may be caught. See the example (of what NOT to do):
#include <iostream>
#include <string>
using namespace std;
class MyException : public exception
{
public:
MyException(const string& msg) : m_msg(msg)
{
cout << "MyException::MyException - set m_msg to:" << m_msg << endl;
}
~MyException()
{
cout << "MyException::~MyException" << endl;
}
virtual const char* what() const throw ()
{
cout << "MyException - what" << endl;
return m_msg.c_str();
}
const string m_msg;
};
void throwDerivedException()
{
cout << "throwDerivedException - thrown a derived exception" << endl;
string execptionMessage("MyException thrown");
throw (MyException(execptionMessage));
}
void illustrateDerivedExceptionCatch()
{
cout << "illustrateDerivedExceptionsCatch - start" << endl;
try
{
throwDerivedException();
}
catch (const exception& e)
{
cout << "illustrateDerivedExceptionsCatch - caught an std::exception, e.what:" << e.what() << endl;
// some additional code due to the fact that std::exception was thrown...
}
catch(const MyException& e)
{
cout << "illustrateDerivedExceptionsCatch - caught an MyException, e.what::" << e.what() << endl;
// some additional code due to the fact that MyException was thrown...
}
cout << "illustrateDerivedExceptionsCatch - end" << endl;
}
int main(int argc, char** argv)
{
cout << "main - start" << endl;
illustrateDerivedExceptionCatch();
cout << "main - end" << endl;
return 0;
}
NOTE:
0) The proper order should be vice-versa, i.e.- first you catch (const MyException& e)
which is followed by catch (const std::exception& e)
.
1) As you can see, when you run the program as is, the first catch clause will be executed (which is probably what you did NOT wanted in the first place).
2) Even though the type caught in the first catch clause is of type std::exception
, the "proper" version of what()
will be called - cause it is caught by reference (change at least the caught argument std::exception
type to be by value - and you will experience the "object slicing" phenomena in action).
3) In case that the "some code due to the fact that XXX exception was thrown..." does important stuff WITH RESPECT to the exception type, there is misbehavior of your code here.
4) This is also relevant if the caught objects were "normal" object like: class Base{};
and class Derived : public Base {}
...
5) g++ 7.3.0
on Ubuntu 18.04.1 produces a warning that indicates the mentioned issue:
In function ‘void illustrateDerivedExceptionCatch()’: item12Linux.cpp:48:2: warning: exception of type ‘MyException’ will be caught catch(const MyException& e) ^~~~~
item12Linux.cpp:43:2: warning: by earlier handler for ‘std::exception’ catch (const exception& e) ^~~~~
Again, I will say, that this answer is only to ADD to the other answers described here (I thought this point is worth mention, yet could not depict it within a comment).
I will rename variables to reduce confusion. n -> nf or nmain. x -> xf or xmain:
def f(nf, xf):
nf = 2
xf.append(4)
print 'In f():', nf, xf
def main():
nmain = 1
xmain = [0,1,2,3]
print 'Before:', nmain, xmain
f(nmain, xmain)
print 'After: ', nmain, xmain
main()
When you call the function f, the Python runtime makes a copy of xmain and assigns it to xf, and similarly assigns a copy of nmain to nf.
In the case of n, the value that is copied is 1.
In the case of x the value that is copied is not the literal list [0, 1, 2, 3]. It is a reference to that list. xf and xmain are pointing at the same list, so when you modify xf you are also modifying xmain.
If, however, you were to write something like:
xf = ["foo", "bar"]
xf.append(4)
you would find that xmain has not changed. This is because, in the line xf = ["foo", "bar"] you have change xf to point to a new list. Any changes you make to this new list will have no effects on the list that xmain still points to.
Hope that helps. :-)
Upgrading pip in windows with -
python -m pip install --upgrade pip
and then running pip install with --user option -
pip install --user package_name
solved my problem.
Use LIMIT with two parameters. For example, to return results 11-60 (where result 1 is the first row), use:
SELECT * FROM foo LIMIT 10, 50
For a solution to return all results, see Thomas' answer.
If you have Windows 10 with the OpenSSH client you may be able to generate the key, but you will have trouble copying it to the target Linux box as the ssh-copy-id command is not part of the client toolset.
Having has this problem I wrote a small PowerShell function to address this, that you add to your profile.
function ssh-copy-id([string]$userAtMachine, [string]$port = 22) {
# Get the generated public key
$key = "$ENV:USERPROFILE" + "/.ssh/id_rsa.pub"
# Verify that it exists
if (!(Test-Path "$key")) {
# Alert user
Write-Error "ERROR: '$key' does not exist!"
}
else {
# Copy the public key across
& cat "$key" | ssh $userAtMachine -p $port "umask 077; test -d .ssh || mkdir .ssh ; cat >> .ssh/authorized_keys || exit 1"
}
}
You can get the gist here
I have a brief write up about it here
readlink -e [filepath]
seems to be exactly what you're asking for - it accepts an arbirary path, resolves all symlinks, and returns the "real" path - and it's "standard *nix" that likely all systems already have
It may be curable by increasing the stack size - but a better solution would be to work out how to avoid recursing so much. A recursive solution can always be converted to an iterative solution - which will make your code scale to larger inputs much more cleanly. Otherwise you'll really be guessing at how much stack to provide, which may not even be obvious from the input.
Are you absolutely sure it's failing due to the size of the input rather than a bug in the code, by the way? Just how deep is this recursion?
EDIT: Okay, having seen the update, I would personally try to rewrite it to avoid using recursion. Generally having a Stack<T>
of "things still do to" is a good starting point to remove recursion.
When you pass a lambda
to sort
, you need to return an integer, not a boolean. So your code should instead read as follows:
xs.sort(lambda x,y: cmp(len(x), len(y)))
Note that cmp is a builtin function such that cmp(x, y)
returns -1 if x
is less than y
, 0 if x
is equal to y
, and 1 if x
is greater than y
.
Of course, you can instead use the key
parameter:
xs.sort(key=lambda s: len(s))
This tells the sort
method to order based on whatever the key function returns.
EDIT: Thanks to balpha and Ruslan below for pointing out that you can just pass len
directly as the key parameter to the function, thus eliminating the need for a lambda
:
xs.sort(key=len)
And as Ruslan points out below, you can also use the built-in sorted function rather than the list.sort
method, which creates a new list rather than sorting the existing one in-place:
print(sorted(xs, key=len))
As your input is in string you are getting value error message use countvectorizer it will convert data set in to sparse matrix and train your ml algorithm you will get the result
a1 = c(1, 2, 3, 4, 5)
a2 = c(6, 7, 8, 9, 10)
a3 = c(11, 12, 13, 14, 15)
aframe = data.frame(a1, a2, a3)
avector <- as.vector(aframe['a2'])
avector<-unlist(avector)
#this will return a vector of type "integer"
I would like to let everyone know that I tried Michal Marczyk's answer on my web server that was running Python 2.6.5 and it worked fine. However, I upgraded to Python 2.7 and it stopped working. I tried to think of some sort of way to encode Decimal objects and this is what I came up with:
import decimal
class DecimalEncoder(json.JSONEncoder):
def default(self, o):
if isinstance(o, decimal.Decimal):
return str(o)
return super(DecimalEncoder, self).default(o)
Note that this will convert the decimal to its string representation (e.g.; "1.2300"
) to a. not lose significant digits and b. prevent rounding errors.
This should hopefully help anyone who is having problems with Python 2.7. I tested it and it seems to work fine. If anyone notices any bugs in my solution or comes up with a better way, please let me know.
As commented, just in case the link I posted there broke, try this:
Add a Name(any valid name) in Excel's Name Manager under Formula tab in the Ribbon.
Then assign a formula using GET.CELL function.
=GET.CELL(63,INDIRECT("rc",FALSE))
63 stands for backcolor.
Let's say we name it Background so in any cell with color type:
=Background
Result:
Notice that Cells A2, A3 and A4 returns 3, 4, and 5 respectively which equates to the cells background color index. HTH.
BTW, here's a link on Excel's Color Index
Variable definitions are meant to be used in tasks. But if you want to include them in tasks probably use the register
directive. Like this:
- name: Define variable in task.
shell: echo "http://www.my.url.com"
register: url
- name: Download apache
shell: wget {{ item }}
with_items: url.stdout
You can also look at roles as a way of separating tasks depending on the different roles roles. This way you can have separate variables for each of one of your roles. For example you may have a url
variable for apache1
and a separate url
variable for the role apache2
.
The simplest way to add a column is to use "withColumn". Since the dataframe is created using sqlContext, you have to specify the schema or by default can be available in the dataset. If the schema is specified, the workload becomes tedious when changing every time.
Below is an example that you can consider:
from pyspark.sql import SQLContext
from pyspark.sql.types import *
sqlContext = SQLContext(sc) # SparkContext will be sc by default
# Read the dataset of your choice (Already loaded with schema)
Data = sqlContext.read.csv("/path", header = True/False, schema = "infer", sep = "delimiter")
# For instance the data has 30 columns from col1, col2, ... col30. If you want to add a 31st column, you can do so by the following:
Data = Data.withColumn("col31", "Code goes here")
# Check the change
Data.printSchema()
Like this:
import java.util.*;
Set<Integer> a = new HashSet<Integer>();
a.add( 1);
a.add( 2);
a.add( 3);
Or adding from an Array/ or multiple literals; wrap to a list, first.
Integer[] array = new Integer[]{ 1, 4, 5};
Set<Integer> b = new HashSet<Integer>();
b.addAll( Arrays.asList( b)); // from an array variable
b.addAll( Arrays.asList( 8, 9, 10)); // from literals
To get the intersection:
// copies all from A; then removes those not in B.
Set<Integer> r = new HashSet( a);
r.retainAll( b);
// and print; r.toString() implied.
System.out.println("A intersect B="+r);
Hope this answer helps. Vote for it!
Not sure if the cleanest for long commands but certainly the easiest:
ssh user@host "cmd1; cmd2; cmd3"
I think the solution used by @maxy-B looks great. However, it didn't succeed for me with nested inclusions. For example if config_1.yaml includes config_2.yaml, which includes config_3.yaml there was a problem with the loader. However, if you simply point the new loader class to itself on load, it works! Specifically, if we replace the old _include function with the very slightly modified version:
def _include(self, loader, node):
oldRoot = self.root
filename = os.path.join(self.root, loader.construct_scalar(node))
self.root = os.path.dirname(filename)
data = yaml.load(open(filename, 'r'), loader = IncludeLoader)
self.root = oldRoot
return data
Upon reflection I agree with the other comments, that nested loading is not appropriate for yaml in general as the input stream may not be a file, but it is very useful!
You want to use %p
to print a pointer. From the spec:
p
The argument shall be a pointer tovoid
. The value of the pointer is converted to a sequence of printing characters, in an implementation-defined manner.
And don't forget the cast, e.g.
printf("%p\n",(void*)&a);
asort()
- Maintains key association: yes.
sort()
- Maintains key association: no.
Had same issue, added og:image and it didn't work while the url end with slash sign (/). After removing the slash from the URL - the image get loaded.. Interesting bug...
Also, if you can't change class B, you can fix the error by using multiple inheritance.
class B:
def meth(self, arg):
print arg
class C(B, object):
def meth(self, arg):
super(C, self).meth(arg)
print C().meth(1)
FrameLayout
is not the better way to do this:
Use RelativeLayout
instead.
You can position the elements anywhere you like.
The element that comes after, has the higher z-index than the previous one (i.e. it comes over the previous one).
Example:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent" android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorPrimary"
app:srcCompat="@drawable/ic_information"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="This is a text."
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
android:layout_margin="8dp"
android:padding="5dp"
android:textAppearance="?android:attr/textAppearanceLarge"
android:background="#A000"
android:textColor="@android:color/white"/>
</RelativeLayout>
To really update just one package install NCU and then run it just for that package. This will bump to the real latest.
npm install -g npm-check-updates
ncu -f your-intended-package-name -u
On MAC Remove gradle-2.1-all folder from the following path /Users/amitsapra/.gradle/wrapper/dists/gradle-2.1-all and then try gradle build again. I faced same issues with 5.4.1-all.
It takes a little time but fixes everything
Here is how to add inline code:
You can add inline code with {\tt code }
or \texttt{ code }
. If you want to format the inline code, then it would be best to make your own command
\newcommand{\code}[1]{\texttt{#1}}
Also, note that code blocks can be loaded from other files with
\lstinputlisting[breaklines]{source.c}
breaklines
isn't required, but I find it useful. Be aware that you'll have to specify \usepackage{
listings }
for this one.
Update: The listings package also includes the \lstinline
command, which has the same syntax highlighting features as the \lstlisting
and \lstinputlisting
commands (see Cloudanger's answer for configuration details). As mentioned in a few other answers, there's also the minted package, which provides the \mintinline
command. Like \lstinline
, \mintinline
provides the same syntax highlighting as a regular minted code block:
\documentclass{article}
\usepackage{minted}
\begin{document}
This is a sentence with \mintinline{python}{def inlineCode(a="ipsum)}
\end{document}
Did you try showing your window using the ShowDialog method?
Don't forget to set the Owner property on the dialog window to the main window. This will avoid weird behavior when Alt+Tabbing, etc.
This is because your device, on which you are running your application is not selected with your provisioning profile.
So just go through Certificates, Identifiers & Profiles select your iOS Provisioning Profiles
click on edit then select your Device
I was facing same issue in my Spring Integration project. I added below JSON dependencies in pom.xml file. It works for me.
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20090211</version>
</dependency>
A list of versions can be found here: https://mvnrepository.com/artifact/org.json/json
i am using this two method steps for preserve same text which is in textarea to store in mysql and at a getting time i can also simply displaying plain text.....
step 1:
$status=$_POST['status'];<br/>
$textToStore = nl2br(htmlentities($status, ENT_QUOTES, 'UTF-8'));
In query enter $textToStore
....
step 2:
write code for select query...and direct echo values....
It works
Since it's essentially a double...
Divide by 60.0 and extract the integral part and the fractional part.
The integral part will be the whole number of minutes.
Multiply the fractional part by 60.0 again.
The result will be the remaining seconds.
// for numbers
a = [1,3,2,4,5,6,7,8, 1,1,4,5,6]
$.unique(a)
[7, 6, 1, 8, 3, 2, 5, 4]
// for string
a = ["a", "a", "b"]
$.unique(a)
["b", "a"]
And for dom elements there is no example is needed here I guess because you already know that!
Here is the jsfiddle link of live example: http://jsfiddle.net/3BtMc/4/
Currently AFAIK there is no easy way to do this as this information should be stored by index which private registry doesn't have. But depending on how you started registry you have 2 options:
docker diff <id_of_registry_container>
with this you should get info about changes in container fs. All pushed images should be somewhere in /tmp/registry/repositories/If you used "centos" as name it should be in /tmp/registry/repositories/library/centos. This folder will contain text files which describes image structure. Actual data is in /tmp/registry/images/.
I had a similar problem.
When I googled, I came across the blog post Install Watch Command on Mac OS X recently. This is not exactly 'installing software', but simply getting the binary for the 'watch' command.
try: var cc = @Html.Raw(Json.Encode(ViewBag.CC)
if("123".search(/^\d+$/) >= 0){
// its a number
}
To unset the $_POST
variable, redeclare it as an empty array:
$_POST = array();
From stack trace:
HikariPool: Timeout failure pool HikariPool-0 stats (total=20, active=20, idle=0, waiting=0) Means pool reached maximum connections limit set in configuration.
The next line: HikariPool-0 - Connection is not available, request timed out after 30000ms. Means pool waited 30000ms for free connection but your application not returned any connection meanwhile.
Mostly it is connection leak (connection is not closed after borrowing from pool), set leakDetectionThreshold to the maximum value that you expect SQL query would take to execute.
otherwise, your maximum connections 'at a time' requirement is higher than 20 !
This answer to a similar question describes how to extend the properties plugin so it can use a remote descriptor for the properties file. The descriptor is basically a jar artifact containing a properties file (the properties file is included under src/main/resources).
The descriptor is added as a dependency to the extended properties plugin so it is on the plugin's classpath. The plugin will search the classpath for the properties file, read the file''s contents into a Properties instance, and apply those properties to the project's configuration so they can be used elsewhere.
You can also use Amazon API Gateway. Put your application behind API Gateway. Please check this FAQ
for verilog just do
parameter ROWBITS = 4;
reg [ROWBITS-1:0] temp;
always @(posedge sysclk) begin
temp <= {ROWBITS{1'b0}}; // fill with 0
end
Use SequenceEqual
to check for sequence equality because Equals
method checks for reference equality.
var a = ints1.SequenceEqual(ints2);
Or if you don't care about elements order use Enumerable.All
method:
var a = ints1.All(ints2.Contains);
The second version also requires another check for Count
because it would return true even if ints2
contains more elements than ints1
. So the more correct version would be something like this:
var a = ints1.All(ints2.Contains) && ints1.Count == ints2.Count;
In order to check inequality just reverse the result of All
method:
var a = !ints1.All(ints2.Contains)
I use this in my fragment.
Button btn1 = (Button) thisLayout
.findViewById(R.id.btnDb1);
btn1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(getActivity(), otherActivity.class);
((MainActivity) getActivity()).startActivity(intent);
}
});
return thisLayout;
}
I found a better answer by Kenneth Fisher. The following query returns only currently running jobs:
SELECT
ja.job_id,
j.name AS job_name,
ja.start_execution_date,
ISNULL(last_executed_step_id,0)+1 AS current_executed_step_id,
Js.step_name
FROM msdb.dbo.sysjobactivity ja
LEFT JOIN msdb.dbo.sysjobhistory jh ON ja.job_history_id = jh.instance_id
JOIN msdb.dbo.sysjobs j ON ja.job_id = j.job_id
JOIN msdb.dbo.sysjobsteps js
ON ja.job_id = js.job_id
AND ISNULL(ja.last_executed_step_id,0)+1 = js.step_id
WHERE
ja.session_id = (
SELECT TOP 1 session_id FROM msdb.dbo.syssessions ORDER BY agent_start_date DESC
)
AND start_execution_date is not null
AND stop_execution_date is null;
You can get more information about a job by adding more columns from msdb.dbo.sysjobactivity
table in select clause.
To test your htaccess rewrite rules, simply fill in the url that you're applying the rules to, place the contents of your htaccess on the larger input area and press "Test" button.
Here's a Windows/non command line method I found, which worked for me: Find the folder where the kernel files are stored (on my machine - C:\ProgramData\jupyter\kernels - note that ProgramData is a hidden folder), create a copy of the existing kernel's folder, change the name and edit the json file within to point to the new kernel's directory. In this json you can also edit the kernel name that is displayed in ipython (e.g. instead of just python 2 you can specify 2.7.9 if you need to further distinguish for some reason).
As soon as you're displaying content from another domain, you're basically trusting that domain not to serve-up malware.
There's nothing wrong with iframes per se. If you control the content of the iframe, they're perfectly safe.
public static void main(String args[]) {
int [] arr = {10, 20, 30, 40, 50};
reverse(arr, arr.length);
}
private static void reverse(int[] arr, int length) {
for(int i=length;i>0;i--) {
System.out.println(arr[i-1]);
}
}
Remove the method, I suspect you might also need to remove it from your Form.Designer
.
Otherwise: Application.Exit();
Should work.
That's why the designer is bad for you. :)
For the parent:
display: flex;
For children:
align-items: stretch;
You should add some prefixes, check caniuse.
The difference is:
- orphanRemoval = true: "Child" entity is removed when it's no longer referenced (its parent may not be removed).
- CascadeType.REMOVE: "Child" entity is removed only when its "Parent" is removed.
Faced this issue of removing the labels in Chartjs now. Looks like the documentation is improved. http://www.chartjs.org/docs/#getting-started-global-chart-configuration
Chart.defaults.global.legend.display = false;
this global settings prevents legends from being shown in all Charts. Since this was enough for me, I used it. I am not sure to how to avoid legends for individual charts.
Two other ways are strcpy(str, "");
and string[0] = 0
To really delete the Variable contents (in case you have dirty code which is not working properly with the snippets above :P ) use a loop like in the example below.
#include <string.h>
...
int i=0;
for(i=0;i<strlen(string);i++)
{
string[i] = 0;
}
In case you want to clear a dynamic allocated array of chars from the beginning, you may either use a combination of malloc() and memset() or - and this is way faster - calloc() which does the same thing as malloc but initializing the whole array with Null.
At last i want you to have your runtime in mind. All the way more, if you're handling huge arrays (6 digits and above) you should try to set the first value to Null instead of running memset() through the whole String.
It may look dirtier at first, but is way faster. You just need to pay more attention on your code ;)
I hope this was useful for anybody ;)
Another approach to add the class to element using pure JavaScript
For adding class:
document.getElementById("div1").classList.add("classToBeAdded");
For removing class:
document.getElementById("div1").classList.remove("classToBeRemoved");
Note: but not supported in IE <= 9 or Safari <=5.0
You may find XAMPP at http://www.apachefriends.org/en/xampp.html
http://www.apachefriends.org/en/xampp-windows.html explains XMAPP for Windows.
Yes, there are 3 php.ini files after installation, one is for php4, one is for php5, and one is for apache. Please modify them accordingly.
I installed it by using a wheel file that can be found at this location: https://pypi.org/project/XlsxWriter/#files
I then ran pip install "XlsxWriter-1.2.8-py2.py3-none-any.whl"
Processing ./XlsxWriter-1.2.8-py2.py3-none-any.whl
Installing collected packages: XlsxWriter
Successfully installed XlsxWriter-1.2.8
I'm going to make a couple of assumptions in my answer. I'm assuming your data starts in A1 and there are no empty cells in the first column of each row that has data.
This code will:
This is not a fast method but will iterate through each one individually as you suggested is your intention.
Sub iterateThroughAll()
ScreenUpdating = False
Dim wks As Worksheet
Set wks = ActiveSheet
Dim rowRange As Range
Dim colRange As Range
Dim LastCol As Long
Dim LastRow As Long
LastRow = wks.Cells(wks.Rows.Count, "A").End(xlUp).Row
Set rowRange = wks.Range("A1:A" & LastRow)
'Loop through each row
For Each rrow In rowRange
'Find Last column in current row
LastCol = wks.Cells(rrow, wks.Columns.Count).End(xlToLeft).Column
Set colRange = wks.Range(wks.Cells(rrow, 1), wks.Cells(rrow, LastCol))
'Loop through all cells in row up to last col
For Each cell In colRange
'Do something to each cell
Debug.Print (cell.Value)
Next cell
Next rrow
ScreenUpdating = True
End Sub
simple example:
<div ng-style="isTrue && {'background-color':'green'} || {'background-color': 'blue'}" style="width:200px;height:100px;border:1px solid gray;"></div>
{'background-color':'green'} RETURN true
OR the same result:
<div ng-style="isTrue && {'background-color':'green'}" style="width:200px;height:100px;border:1px solid gray;background-color: blue"></div>
other conditional possibility:
<div ng-style="count === 0 && {'background-color':'green'} || count === 1 && {'background-color':'yellow'}" style="width:200px;height:100px;border:1px solid gray;background-color: blue"></div>
See it might be worked -------
UPDATE table_name SET column_name=replace(column_name, ' ', '') //Remove white space
UPDATE table_name SET column_name=replace(column_name, '\n', '') //Remove newline
UPDATE table_name SET column_name=replace(column_name, '\t', '') //Remove all tab
Thanks Subroto
You are right that CSS positioning is the way to go. Here's a quick run down:
position: relative
will layout an element relative to itself. In other words, the elements is laid out in normal flow, then it is removed from normal flow and offset by whatever values you have specified (top, right, bottom, left). It's important to note that because it's removed from flow, other elements around it will not shift with it (use negative margins instead if you want this behaviour).
However, you're most likely interested in position: absolute
which will position an element relative to a container. By default, the container is the browser window, but if a parent element either has position: relative
or position: absolute
set on it, then it will act as the parent for positioning coordinates for its children.
To demonstrate:
#container {_x000D_
position: relative;_x000D_
border: 1px solid red;_x000D_
height: 100px;_x000D_
}_x000D_
_x000D_
#box {_x000D_
position: absolute;_x000D_
top: 50px;_x000D_
left: 20px;_x000D_
}
_x000D_
<div id="container">_x000D_
<div id="box">absolute</div>_x000D_
</div>
_x000D_
In that example, the top left corner of #box
would be 100px down and 50px left of the top left corner of #container
. If #container
did not have position: relative
set, the coordinates of #box
would be relative to the top left corner of the browser view port.
After some investigation about file dates I solved the same issue (which is a randomly recurrent trouble on my Kepler) by simply deleting the following file in my local workspace: .metadata.plugins\org.eclipse.jdt.core\variablesAndContainers.dat
with negligible impact on the workspace restoring.
I hope it can help someone else...
One way to silence this warning from Chrome would be to update Chrome and then make sure your mime type is one of these:
"font/ttf"
"font/opentype"
"application/font-woff"
"application/x-font-type1"
"application/x-font-ttf"
"application/x-truetype-font"
This list is per the patch found at Bug 111418 at webkit.org.
The same patch demotes the message from a "Warning" to a "Log", so just upgrading Chrome to any post March-2013 version would get rid of the yellow triangle.
Since the question is about silencing a Chrome warning, and folks might be holding on to old Chrome versions for whatever reasons, I figured this was worth adding.
I used this code to fix the issue of displaying items in the horizontal list.
new Container(
height: 20,
child: Row(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
ListView.builder(
scrollDirection: Axis.horizontal,
shrinkWrap: true,
itemCount: array.length,
itemBuilder: (context, index){
return array[index];
},
),
],
),
);
I have found a simple solution which worked for me.
String.Join(",",str.Split(','));
You may have better luck breaking the problem down into converting PDF into an editable format, writing your changes, then converting it back into PDF. I don't know of a library that lets you directly edit PDF but there are plenty of converters between DOC and PDF for example.
I kept running into this problem when trying to capture JSON data in the log with the Python logging
library, for debugging and troubleshooting purposes. Getting the u
character is a real nuisance when you want to copy the text and paste it into your code somewhere.
As everyone will tell you, this is because it is a Unicode representation, and it could come from the fact that you’ve used json.loads()
to load in the data from a string in the first place.
If you want the JSON representation in the log, without the u
prefix, the trick is to use json.dumps()
before logging it out. For example:
import json
import logging
# Prepare the data
json_data = json.loads('{"key": "value"}')
# Log normally and get the Unicode indicator
logging.warning('data: {}'.format(json_data))
>>> WARNING:root:data: {u'key': u'value'}
# Dump to a string before logging and get clean output!
logging.warning('data: {}'.format(json.dumps(json_data)))
>>> WARNING:root:data: {'key': 'value'}
For anyone trying to achieve this with Python 3.3+, the Windows installer now includes an option to add python.exe to the system search path. Read more in the docs.
I didn't want to unstack
or over-complicate this issue, since I just wanted to drop some highly correlated features as part of a feature selection phase.
So I ended up with the following simplified solution:
# map features to their absolute correlation values
corr = features.corr().abs()
# set equality (self correlation) as zero
corr[corr == 1] = 0
# of each feature, find the max correlation
# and sort the resulting array in ascending order
corr_cols = corr.max().sort_values(ascending=False)
# display the highly correlated features
display(corr_cols[corr_cols > 0.8])
In this case, if you want to drop correlated features, you may map through the filtered corr_cols
array and remove the odd-indexed (or even-indexed) ones.
I think the easiest way is to create an interface to get the data from onpostexecute and run the Ui from interface :
Create an Interface :
public interface AsyncResponse {
void processFinish(String output);
}
Then in asynctask
@Override
protected void onPostExecute(String data) {
delegate.processFinish(data);
}
Then in yout main activity
@Override
public void processFinish(String data) {
// do things
}
You could detect position of the mouse pointer and then move the web page (with body position relative) so they hover over what you want them to click.
For an example you can paste this code on the current page in your browser console (and refresh afterwards)
var upvote_position = $('#answer-12878316').position();
$('body').mousemove(function (event) {
$(this).css({
position: 'relative',
left: (event.pageX - upvote_position.left - 22) + 'px',
top: (event.pageY - upvote_position.top - 35) + 'px'
});
});
Something like this should work.
ssh [email protected] 'find -type f -name "*.pdf" -exec cp {} ./pdfsfolder \;'
If you want the types of convenience methods mentioned in other answers but need portability (or even if you don't), you might want to check out Flurl [disclosure: I'm the author]. It (thinly) wraps HttpClient
and Json.NET and adds some fluent sugar and other goodies, including some baked-in testing helpers.
Post as JSON:
var resp = await "http://localhost:44268/api/test".PostJsonAsync(widget);
or URL-encoded:
var resp = await "http://localhost:44268/api/test".PostUrlEncodedAsync(widget);
Both examples above return an HttpResponseMessage
, but Flurl includes extension methods for returning other things if you just want to cut to the chase:
T poco = await url.PostJsonAsync(data).ReceiveJson<T>();
dynamic d = await url.PostUrlEncodedAsync(data).ReceiveJson();
string s = await url.PostUrlEncodedAsync(data).ReceiveString();
Flurl is available on NuGet:
PM> Install-Package Flurl.Http
It is a pointer to a pointer, so yes, in a way it's a 2D character array. In the same way that a char*
could indicate an array of char
s, a char**
could indicate that it points to and array of char*
s.
// in foo.h
class Foo {
static const unsigned char* Msg;
};
// in foo.cpp
static const unsigned char Foo_Msg_data[] = {0x00,0x01};
const unsigned char* Foo::Msg = Foo_Msg_data;
Very simple Example:
List<String> list = new ArrayList<String>();
list.add("ravi");
list.add("kant");
list.add("soni");
// Iterate to disply : result will be as --- ravi kant soni
for (String name : list) {
...
}
//Now call this method
Collections.reverse(list);
// iterate and print index wise : result will be as --- soni kant ravi
for (String name : list) {
...
}
This works for me with twitter bootstrap 2 and simple_form 2.0.4
Result is a span6 text area in a span9 row
<div class="row" >
<div class="span9">
<%= f.input :some_text, :input_html => {:rows => 5, :placeholder => "Enter some text.", :class => "span6"}%>
</div>
</div>
I think thats not the reason everybody told above. There is something wrong in your code, maybe miss spelling or mismatching with the database column names. If mysqli query gets no result then it will return false, so that it is not a object - is a wrong idea. Everything works fine. it returns 1 or 0 if query have result or not.
So, my suggestion is check your variable names and table column names or any other misspelling.
Using touchstart or touchend alone is not a good solution, because if you scroll the page, the device detects it as touch or tap too. So, the best way to detect a tap and click event at the same time is to just detect the touch events which are not moving the screen (scrolling). So to do this, just add this code to your application:
$(document).on('touchstart', function() {
detectTap = true; // Detects all touch events
});
$(document).on('touchmove', function() {
detectTap = false; // Excludes the scroll events from touch events
});
$(document).on('click touchend', function(event) {
if (event.type == "click") detectTap = true; // Detects click events
if (detectTap){
// Here you can write the function or codes you want to execute on tap
}
});
I tested it and it works fine for me on iPad and iPhone. It detects tap and can distinguish tap and touch scroll easily.
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* /codeigniter/index.php/$0 [PT,L]
after changing RewriteRule .* index.php/$0 [PT,L] with the project folder name "codeigniter".its working for me. Thanks guys for your support.
you can also use a filter to do it.
df = PD.DataFrame([
[-0.532681, 'foo', 0],
[1.490752, 'bar', 1],
[-1.387326, 'foo', 2],
[0.814772, 'baz', ' '],
[-0.222552, ' ', 4],
[-1.176781, 'qux', ' '])
df[df=='']='nan'
df=df.astype(float)
B+Trees are much easier and higher performing to do a full scan, as in look at every piece of data that the tree indexes, since the terminal nodes form a linked list. To do a full scan with a B-Tree you need to do a full tree traversal to find all the data.
B-Trees on the other hand can be faster when you do a seek (looking for a specific piece of data by key) especially when the tree resides in RAM or other non-block storage. Since you can elevate commonly used nodes in the tree there are less comparisons required to get to the data.
Here you go... kit is the obvious winner!
N = 1e6
x = rnorm(N)
maxN <- function(x, N=2){
len <- length(x)
if(N>len){
warning('N greater than length(x). Setting N=length(x)')
N <- length(x)
}
sort(x,partial=len-N+1)[len-N+1]
}
microbenchmark::microbenchmark(
Rfast = Rfast::nth(x,5,descending = T),
maxN = maxN(x,5),
order = x[order(x, decreasing = T)[5]],
kit = x[kit::topn(x, 5L,decreasing = T)[5L]]
)
# Unit: milliseconds
# expr min lq mean median uq max neval
# Rfast 12.311168 12.473771 16.36982 12.702134 16.110779 102.749873 100
# maxN 12.922118 13.124358 17.49628 18.977537 20.053139 28.928694 100
# order 50.443100 50.926975 52.54067 51.270163 52.323116 66.561606 100
# kit 1.177202 1.216371 1.29542 1.240228 1.297286 2.771715 100
Edit: I forgot that kit::topn
has hasna
option...let's do another run.
microbenchmark::microbenchmark(
Rfast = Rfast::nth(x,5,descending = T),
maxN = maxN(x,5),
order = x[order(x, decreasing = T)[5]],
kit = x[kit::topn(x, 5L,decreasing = T)[5L]],
kit2 = x[kit::topn(x, 5L,decreasing = T,hasna = F)[5L]],
unit = "ms"
)
# Unit: milliseconds
# expr min lq mean median uq max neval
# Rfast 13.194314 13.358787 14.7227116 13.4560340 14.551194 24.524105 100
# maxN 7.378960 7.527661 10.0747803 7.7119715 12.217756 67.409526 100
# order 50.088927 50.488832 52.4714347 50.7415680 52.267003 70.062662 100
# kit 1.180698 1.217237 1.2975441 1.2429790 1.278243 3.263202 100
# kit2 0.842354 0.876329 0.9398055 0.9109095 0.944407 2.135903 100
Is this a commercial application or some hobbyist / open source software?
I'm asking this because in my experience, all free .NET Excel handling alternatives have serious problems, for different reasons. For hobbyist things, I usually end up porting jExcelApi from Java to C# and using it.
But if this is a commercial application, you would be better off by purchasing a third party library, like Aspose.Cells. Believe me, it totally worths it as it saves a lot of time and time ain't free.
OK, so I think there is no sufficient answer for general camera preview stretching problem. Or at least I didn't find one. My app also suffered this stretching syndrome and it took me a while to puzzle together a solution from all the user answers on this portal and internet.
I tried @Hesam's solution but it didn't work and left my camera preview majorly distorted.
First I show the code of my solution (the important parts of the code) and then I explain why I took those steps. There is room for performance modifications.
Main activity xml layout:
<RelativeLayout
android:id="@+id/main_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<FrameLayout
android:id="@+id/camera_preview"
android:layout_centerInParent="true"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</RelativeLayout>
Camera Preview:
public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback {
private SurfaceHolder prHolder;
private Camera prCamera;
public List<Camera.Size> prSupportedPreviewSizes;
private Camera.Size prPreviewSize;
@SuppressWarnings("deprecation")
public YoCameraPreview(Context context, Camera camera) {
super(context);
prCamera = camera;
prSupportedPreviewSizes = prCamera.getParameters().getSupportedPreviewSizes();
prHolder = getHolder();
prHolder.addCallback(this);
prHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
public void surfaceCreated(SurfaceHolder holder) {
try {
prCamera.setPreviewDisplay(holder);
prCamera.startPreview();
} catch (IOException e) {
Log.d("Yologram", "Error setting camera preview: " + e.getMessage());
}
}
public void surfaceDestroyed(SurfaceHolder holder) {
}
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
if (prHolder.getSurface() == null){
return;
}
try {
prCamera.stopPreview();
} catch (Exception e){
}
try {
Camera.Parameters parameters = prCamera.getParameters();
List<String> focusModes = parameters.getSupportedFocusModes();
if (focusModes.contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
}
parameters.setPreviewSize(prPreviewSize.width, prPreviewSize.height);
prCamera.setParameters(parameters);
prCamera.setPreviewDisplay(prHolder);
prCamera.startPreview();
} catch (Exception e){
Log.d("Yologram", "Error starting camera preview: " + e.getMessage());
}
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
final int width = resolveSize(getSuggestedMinimumWidth(), widthMeasureSpec);
final int height = resolveSize(getSuggestedMinimumHeight(), heightMeasureSpec);
setMeasuredDimension(width, height);
if (prSupportedPreviewSizes != null) {
prPreviewSize =
getOptimalPreviewSize(prSupportedPreviewSizes, width, height);
}
}
public Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h) {
final double ASPECT_TOLERANCE = 0.1;
double targetRatio = (double) h / w;
if (sizes == null)
return null;
Camera.Size optimalSize = null;
double minDiff = Double.MAX_VALUE;
int targetHeight = h;
for (Camera.Size size : sizes) {
double ratio = (double) size.width / size.height;
if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE)
continue;
if (Math.abs(size.height - targetHeight) < minDiff) {
optimalSize = size;
minDiff = Math.abs(size.height - targetHeight);
}
}
if (optimalSize == null) {
minDiff = Double.MAX_VALUE;
for (Camera.Size size : sizes) {
if (Math.abs(size.height - targetHeight) < minDiff) {
optimalSize = size;
minDiff = Math.abs(size.height - targetHeight);
}
}
}
return optimalSize;
}
}
Main activity:
public class MainActivity extends Activity {
...
@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
maCamera = getCameraInstance();
maLayoutPreview = (FrameLayout) findViewById(R.id.camera_preview);
maPreview = new CameraPreview(this, maCamera);
Point displayDim = getDisplayWH();
Point layoutPreviewDim = calcCamPrevDimensions(displayDim,
maPreview.getOptimalPreviewSize(maPreview.prSupportedPreviewSizes,
displayDim.x, displayDim.y));
if (layoutPreviewDim != null) {
RelativeLayout.LayoutParams layoutPreviewParams =
(RelativeLayout.LayoutParams) maLayoutPreview.getLayoutParams();
layoutPreviewParams.width = layoutPreviewDim.x;
layoutPreviewParams.height = layoutPreviewDim.y;
layoutPreviewParams.addRule(RelativeLayout.CENTER_IN_PARENT);
maLayoutPreview.setLayoutParams(layoutPreviewParams);
}
maLayoutPreview.addView(maPreview);
}
@SuppressLint("NewApi")
@SuppressWarnings("deprecation")
private Point getDisplayWH() {
Display display = this.getWindowManager().getDefaultDisplay();
Point displayWH = new Point();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
display.getSize(displayWH);
return displayWH;
}
displayWH.set(display.getWidth(), display.getHeight());
return displayWH;
}
private Point calcCamPrevDimensions(Point disDim, Camera.Size camDim) {
Point displayDim = disDim;
Camera.Size cameraDim = camDim;
double widthRatio = (double) displayDim.x / cameraDim.width;
double heightRatio = (double) displayDim.y / cameraDim.height;
// use ">" to zoom preview full screen
if (widthRatio < heightRatio) {
Point calcDimensions = new Point();
calcDimensions.x = displayDim.x;
calcDimensions.y = (displayDim.x * cameraDim.height) / cameraDim.width;
return calcDimensions;
}
// use "<" to zoom preview full screen
if (widthRatio > heightRatio) {
Point calcDimensions = new Point();
calcDimensions.x = (displayDim.y * cameraDim.width) / cameraDim.height;
calcDimensions.y = displayDim.y;
return calcDimensions;
}
return null;
}
}
My commentary:
The point of all this is, that although you calculate the optimal camera size in getOptimalPreviewSize()
you only pick the closest ratio to fit your screen. So unless the ratio is exactly the same the preview will stretch.
Why will it stretch? Because your FrameLayout camera preview is set in layout.xml to match_parent in width and height. So that is why the preview will stretch to full screen.
What needs to be done is to set camera preview layout width and height to match the chosen camera size ratio, so the preview keeps its aspect ratio and won't distort.
I tried to use the CameraPreview
class to do all the calculations and layout changes, but I couldn't figure it out. I tried to apply this solution, but SurfaceView
doesn't recognize getChildCount ()
or getChildAt (int index)
. I think, I got it working eventually with a reference to maLayoutPreview
, but it was misbehaving and applied the set ratio to my whole app and it did so after first picture was taken. So I let it go and moved the layout modifications to the MainActivity
.
In CameraPreview
I changed prSupportedPreviewSizes
and getOptimalPreviewSize()
to public so I can use it in MainActivity
. Then I needed the display dimensions (minus the navigation/status bar if there is one) and chosen optimal camera size. I tried to get the RelativeLayout (or FrameLayout) size instead of display size, but it was returning zero value. This solution didn't work for me. The layout got it's value after onWindowFocusChanged
(checked in the log).
So I have my methods for calculating the layout dimensions to match the aspect ratio of chosen camera size. Now you just need to set LayoutParams
of your camera preview layout. Change the width, height and center it in parent.
There are two choices how to calculate the preview dimensions. Either you want it to fit the screen with black bars (if windowBackground is set to null) on the sides or top/bottom. Or you want the preview zoomed to full screen. I left comment with more information in calcCamPrevDimensions()
.
There is also Head.js. It is very easy to deal with:
head.load("js/jquery.min.js",
"js/jquery.someplugin.js",
"js/jquery.someplugin.css", function() {
alert("Everything is ok!");
});
As you see, it's easier than Require.js and as convenient as jQuery's $.getScript
method. It also has some advanced features, like conditional loading, feature detection and much more.
The simpler way:
h = ''
i = None
j = 0
k = 1
print h or i or j or k
Will print 1
print k or j or i or h
Will print 1
Just find the remainder by dividing by 1, that is x%1. If the remainder is 0, it means that x is a whole number. Otherwise, you have to display the message "Must input numbers". This will work even in the case of strings, decimal numbers etc.
function checkInp()
{
var x = document.forms["myForm"]["age"].value;
if ((x%1) != 0)
{
alert("Must input numbers");
return false;
}
}
You can force bundler to use the gems you deploy using "bundle package" and "bundle install --local"
On your development machine:
bundle install
(Installs required gems and makes Gemfile.lock)
bundle package
(Caches the gems in vendor/cache)
On the server:
bundle install --local
(--local means "use the gems from vendor/cache")
Web Call Server (Flashphoner)
Re-Streaming RTSP to WebRTC (Native browser feature for Chrome and FF either on Android or desktop)
Re-Streaming RTSP to Websockets (iOS Safari and Chrome/FF Desktop)
Take a look at this article.
Try this code:
var id;
var vname;
function ajaxCall(){
for(var q = 1; q<=10; q++){
$.ajax({
url: 'api.php',
data: 'id1='+q+'',
dataType: 'json',
async:false,
success: function(data)
{
id = data[0];
vname = data[1];
},
complete: function (data) {
printWithAjax();
}
});
}//end of the for statement
}//end of ajax call function
The "complete" function executes only after the "success" of ajax. So try to call the printWithAjax() on "complete". This should work for you.
adb shell killall -9 com.your.package.name
according to MAC "mandatory access control" you probably have the permission to kill process which is not started by root
have fun!
As outlined above, Github pages do not support that functionality. I had the same issue when our team decided to host project documentation (static HTML) internally and privately.
I ended up creating a service https://www.privatehub.cloud It is basically a simple proxy server with Github OAuth authentication, so it merely returns your GitHub repository content with a proper MIME type. By design, only who have access to foo
will be able to see foo
content at https://bar-foo.privatehub.cloud
. From functional point of view, you can think about it as a simplified GitHub pages with built-in authentication.
Unfortunately, Github OAuth does not allow to request read-only
access to private repos, so the server needs the full access (obviously, it does not write anything to your repo). As GitHub API allows to retrieve files under 1 Mb only, the service cannot return larger files. Yet, I found the service is quite suitable for small projects for internal documentation or staging version of a website.
The example URLs for standard gmail, above, return a google error.
The February 2014 post to thread 2583928 recommends replacing view=cm&fs=1&tf=1
with &v=b&cs=wh
.
Note: It also no longer seems possible to autopopulate the mail body.
spring.jpa.hibernate.ddl-auto = update
change update
to create
, and run it
after run safely again change create
to update
so again all tables will not create and you can use your previous data
For a manual fix to an existing cordova project
The black bars
Add this to your info.plist file. Fixing the launch image is a separate issue i.e. How to Add iPhoneX Launch Image
<key>UILaunchStoryboardName</key>
<string>CDVLaunchScreen</string>
The white bars
Set viewport-fit=cover in the meta tag
<meta name="viewport" content="initial-scale=1, width=device-width, height=device-height, viewport-fit=cover">
Here was my solution:
In the constructors add these two lines:
this.BackColor = Color.LimeGreen;
this.TransparencyKey = Color.LimeGreen;
In your form, add this method:
protected override void OnPaintBackground(PaintEventArgs e)
{
e.Graphics.FillRectangle(Brushes.LimeGreen, e.ClipRectangle);
}
Be warned, not only is this form fully transparent inside the frame, but you can also click through it. However, it might be cool to draw an image onto it and make the form able to be dragged everywhere to create a custom shaped form.
If you were asking how to do it in vue2 and make options to insert and delete it, please, have a look an js fiddle
new Vue({_x000D_
el: '#app',_x000D_
data: {_x000D_
finds: [] _x000D_
},_x000D_
methods: {_x000D_
addFind: function () {_x000D_
this.finds.push({ value: 'def' });_x000D_
},_x000D_
deleteFind: function (index) {_x000D_
console.log(index);_x000D_
console.log(this.finds);_x000D_
this.finds.splice(index, 1);_x000D_
}_x000D_
}_x000D_
});
_x000D_
<script src="https://unpkg.com/[email protected]/dist/vue.js"></script>_x000D_
<div id="app">_x000D_
<h1>Finds</h1>_x000D_
<div v-for="(find, index) in finds">_x000D_
<input v-model="find.value">_x000D_
<button @click="deleteFind(index)">_x000D_
delete_x000D_
</button>_x000D_
</div>_x000D_
_x000D_
<button @click="addFind">_x000D_
New Find_x000D_
</button>_x000D_
_x000D_
<pre>{{ $data }}</pre>_x000D_
</div>
_x000D_
You can't, the only things you can do with html is open your default email application. You must use a server code to send an email, php, asp .net....
display html form values in same page after clicking on submit button using JS & html codes. After opening it up again it should give that comments in that page.
I am happy with the listings
package:
Here is how I configure it:
\lstset{
language=C,
basicstyle=\small\sffamily,
numbers=left,
numberstyle=\tiny,
frame=tb,
columns=fullflexible,
showstringspaces=false
}
I use it like this:
\begin{lstlisting}[caption=Caption example.,
label=a_label,
float=t]
// Insert the code here
\end{lstlisting}
try below:
var temp_datetime_obj = new Date();
collection.find({
start_date:{
$gte: new Date(temp_datetime_obj.toISOString())
}
}).toArray(function(err, items) {
/* you can console.log here */
});
There's another good way, just edit the file apache2.conf
theres a line at the end
IncludeOptional sites-enabled/*.conf
just remove the .conf
at the end, like this
IncludeOptional sites-enabled/*
and restart the server.
(I tried this only in the Ubuntu 13.10, when I updated it.)
If I had to do this with a regex, I'd do it like this:
s = re.sub(r'\.jpg$', '', s)
Just created this:
https://gist.github.com/3854049
//Setter
Storage.setObj('users.albums.sexPistols',"blah");
Storage.setObj('users.albums.sexPistols',{ sid : "My Way", nancy : "Bitch" });
Storage.setObj('users.albums.sexPistols.sid',"Other songs");
//Getters
Storage.getObj('users');
Storage.getObj('users.albums');
Storage.getObj('users.albums.sexPistols');
Storage.getObj('users.albums.sexPistols.sid');
Storage.getObj('users.albums.sexPistols.nancy');
Actually link to .well-know
is on the first tab of your realm settings - but link doesn't look like link, but as value of text box... bad ui design.
Screenshot of Realm's General Tab
The problem is that you thought your jsonString is a dictionary. It's not.
It's an array of dictionaries.
In raw json strings, arrays begin with [
and dictionaries begin with {
.
I used your json string with below code :
let string = "[{\"form_id\":3465,\"canonical_name\":\"df_SAWERQ\",\"form_name\":\"Activity 4 with Images\",\"form_desc\":null}]"
let data = string.data(using: .utf8)!
do {
if let jsonArray = try JSONSerialization.jsonObject(with: data, options : .allowFragments) as? [Dictionary<String,Any>]
{
print(jsonArray) // use the json here
} else {
print("bad json")
}
} catch let error as NSError {
print(error)
}
and I am getting the output :
[["form_desc": <null>, "form_name": Activity 4 with Images, "canonical_name": df_SAWERQ, "form_id": 3465]]
You need to add a break statement:
switch (searchType)
{
case "SearchBooks":
Selenium.Type("//*[@id='SearchBooks_TextInput']", searchText);
Selenium.Click("//*[@id='SearchBooks_SearchBtn']");
break;
case "SearchAuthors":
Selenium.Type("//*[@id='SearchAuthors_TextInput']", searchText);
Selenium.Click("//*[@id='SearchAuthors_SearchBtn']");
break;
}
This assumes that you want to either handle the SearchBooks
case or the SearchAuthors
- as you had written in, in a traditional C-style switch statement the control flow would have "fallen through" from one case statement to the next meaning that all 4 lines of code get executed in the case where searchType == "SearchBooks"
.
The compiler error you are seeing was introduced (at least in part) to warn the programmer of this potential error.
As an alternative you could have thrown an error or returned from a method.
If you mean using a literal, you simply have to create a binary string:
insert into Files (FileId, FileData) values (1, 0x010203040506)
And you will have a record with a six byte value for the FileData field.
You indicate in the comments that you want to just specify the file name, which you can't do with SQL Server 2000 (or any other version that I am aware of).
You would need a CLR stored procedure to do this in SQL Server 2005/2008 or an extended stored procedure (but I'd avoid that at all costs unless you have to) which takes the filename and then inserts the data (or returns the byte string, but that can possibly be quite long).
In regards to the question of only being able to get data from a SP/query, I would say the answer is yes, because if you give SQL Server the ability to read files from the file system, what do you do when you aren't connected through Windows Authentication, what user is used to determine the rights? If you are running the service as an admin (God forbid) then you can have an elevation of rights which shouldn't be allowed.
You can still do this in top. While top is running, press '1' on your keyboard, it will then show CPU usage per core.
Limit the processes shown by having that specific process run under a specific user account and use Type 'u' to limit to that user
public class X { static {
System.out.println("Main not required to print this");
System.exit(0);
}}
Run from the cmdline with java X
.
if i click table name its shown all fields about table. i did table field to show. but i need to know click function.
My Code:
$sql = "SHOW tables from database_name where tables_in_databasename not like '%tablename' and tables_in_databasename not like '%tablename%'";
$result=mysqli_query($cons,$sql);
$count = 0;
$array = array();
while ($row = mysqli_fetch_assoc($result)) {
$count++;
$tbody_txt .= '<tr>';
foreach ($row as $key => $value) {
if($count == '1') {
$thead_txt .='<td>'.$key.'</td>';
}
$tbody_txt .='<td>'.$value.'</td>';
$array[$key][] = $value;
}
}?>
If both versions of Microsoft Access Database Engine 2010 can't coexists, then your only solution is to complain to Microsoft, regarding loading 64 bits versions of this in your 32 bits app is impossible directly, what you can do is a service that runs in 64 bits that comunicates with another 32 bits service or your application via pipes or networks sockets, but it may require a significant effort.