Though this is an old question, I thought I'd post my answer anyway, if that helps someone in future
JArray array = JArray.Parse(jsonString);
foreach (JObject obj in array.Children<JObject>())
{
foreach (JProperty singleProp in obj.Properties())
{
string name = singleProp.Name;
string value = singleProp.Value.ToString();
//Do something with name and value
//System.Windows.MessageBox.Show("name is "+name+" and value is "+value);
}
}
This solution uses Newtonsoft library, don't forget to include using Newtonsoft.Json.Linq;
Ok, I have another solution for one specific case: if you use WINDOWS 10, and you updated it recently (with Anniversary Update package) you need to follow the steps below:
Windows Event Viewer
- press Win+R and type: eventvwr
, then press ENTER.Windows Event Viewer
click on Windows Logs
-> Application
.IIS-W3SVC-WP
in middle window.The Module DLL >>path-to-DLL<< failed to load. The data is the error.
Control Panel
-> Program and Features
and depending on which dll cannot be load you need to repair another module:
rewrite.dll
- find IIS URL Rewrite Module 2 and click Change
->Repair
aspnetcore.dll
- find Microsoft .NET Core 1.0.0 - VS 2015 Tooling ... and click Change
->Repair
.You can use some techniques in your code to detect memory leak. The most common and most easy way to detect is, define a macro say, DEBUG_NEW and use it, along with predefined macros like __FILE__
and __LINE__
to locate the memory leak in your code. These predefined macros tell you the file and line number of memory leaks.
DEBUG_NEW is just a MACRO which is usually defined as:
#define DEBUG_NEW new(__FILE__, __LINE__)
#define new DEBUG_NEW
So that wherever you use new
, it also can keep track of the file and line number which could be used to locate memory leak in your program.
And __FILE__
, __LINE__
are predefined macros which evaluate to the filename and line number respectively where you use them!
Read the following article which explains the technique of using DEBUG_NEW with other interesting macros, very beautifully:
A Cross-Platform Memory Leak Detector
From Wikpedia,
Debug_new refers to a technique in C++ to overload and/or redefine operator new and operator delete in order to intercept the memory allocation and deallocation calls, and thus debug a program for memory usage. It often involves defining a macro named DEBUG_NEW, and makes new become something like new(_FILE_, _LINE_) to record the file/line information on allocation. Microsoft Visual C++ uses this technique in its Microsoft Foundation Classes. There are some ways to extend this method to avoid using macro redefinition while still able to display the file/line information on some platforms. There are many inherent limitations to this method. It applies only to C++, and cannot catch memory leaks by C functions like malloc. However, it can be very simple to use and also very fast, when compared to some more complete memory debugger solutions.
Thats where asp.net puts dynamically compiled assemblies.
One possible reason is to check Android SDK Manager and install Google USB Driver in Extras folder if you have not installed it.
Following the steps here: http://developer.android.com/sdk/oem-usb.html#InstallingDriver allowed Eclipse to display the device.
if it is showing error 2003 (HY000): Can't connect to MySQL server on localhost (10061) than
There are all kinds of wonderful ways to specify commits - see the specifying revisions section of man git-rev-parse
for more details. In this case, you probably want:
git diff HEAD@{1}
The @{1}
means "the previous position of the ref I've specified", so that evaluates to what you had checked out previously - just before the pull. You can tack HEAD
on the end there if you also have some changes in your work tree and you don't want to see the diffs for them.
I'm not sure what you're asking for with "the commit ID of my latest version of the file" - the commit "ID" (SHA1 hash) is that 40-character hex right at the top of every entry in the output of git log. It's the hash for the entire commit, not for a given file. You don't really ever need more - if you want to diff just one file across the pull, do
git diff HEAD@{1} filename
This is a general thing - if you want to know about the state of a file in a given commit, you specify the commit and the file, not an ID/hash specific to the file.
This https://stackoverflow.com/a/13266763/1277458 works perfectly. But if you have 64-bit operation system use Framework64 instead of Framework in path:
c:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -i
This is an example when you need Each element in the result should appear as many times as it shows in both arrays.
def intersection(nums1, nums2):
#example:
#nums1 = [1,2,2,1]
#nums2 = [2,2]
#output = [2,2]
#find first 2 and remove from target, continue iterating
target, iterate = [nums1, nums2] if len(nums2) >= len(nums1) else [nums2, nums1] #iterate will look into target
if len(target) == 0:
return []
i = 0
store = []
while i < len(iterate):
element = iterate[i]
if element in target:
store.append(element)
target.remove(element)
i += 1
return store
Hi guys wanted to also add on how to copy using a dynamic copying and pasting.
let say we don't know the actual folder the user will create but we know in that folder we need files to be copied to, to activate some function like delete, update, views etc.
you can use something like this... I used this code in one of the complex project which I am currently busy on. i just build it myself because all answers i got on the internet was giving me an error.
$dirPath1 = "users/$uniqueID"; #creating main folder and where $uniqueID will be called by a database when a user login.
$result = mkdir($dirPath1, 0755);
$dirPath2 = "users/$uniqueID/profile"; #sub folder
$result = mkdir($dirPath2, 0755);
$dirPath3 = "users/$uniqueID/images"; #sub folder
$result = mkdir($dirPath3, 0755);
$dirPath4 = "users/$uniqueID/uploads";#sub folder
$result = mkdir($dirPath4, 0755);
@copy('blank/dashboard.php', 'users/'.$uniqueID.'/dashboard.php');#from blank folder to dynamic user created folder
@copy('blank/views.php', 'users/'.$uniqueID.'/views.php'); #from blank folder to dynamic user created folder
@copy('blank/upload.php', 'users/'.$uniqueID.'/upload.php'); #from blank folder to dynamic user created folder
@copy('blank/delete.php', 'users/'.$uniqueID.'/delete.php'); #from blank folder to dynamic user created folder
I think facebook or twitter uses something like this to build every new user dashboard dynamic....
From the MS SQL Server online documentation (http://technet.microsoft.com/en-us/library/ms186734.aspx ), here is their example that I have tested and works, for retrieving a specific set of rows. ROW_NUMBER requires an OVER, but you can order by whatever you like:
WITH OrderedOrders AS
(
SELECT SalesOrderID, OrderDate,
ROW_NUMBER() OVER (ORDER BY OrderDate) AS RowNumber
FROM Sales.SalesOrderHeader
)
SELECT SalesOrderID, OrderDate, RowNumber
FROM OrderedOrders
WHERE RowNumber BETWEEN 50 AND 60;
You can get the number of elements in the list by calling list.size()
, however some of the elements may be duplicates or null
(if your list implementation allows null
).
If you want the number of unique items and your items implement equals
and hashCode
correctly you can put them all in a set and call size
on that, like this:
new HashSet<>(list).size()
If you want the number of items with a distinct itemId
you can do this:
list.stream().map(i -> i.itemId).distinct().count()
Assuming that the type of itemId
correctly implements equals
and hashCode
(which String
in the question does, unless you want to do something like ignore case, in which case you could do map(i -> i.itemId.toLowerCase())
).
You may need to handle null
elements by either filtering them before the call to map
: filter(Objects::nonNull)
or by providing a default itemId for them in the map
call: map(i -> i == null ? null : i.itemId)
.
Tensorflow upgrade -Python3
>> pip3 install --upgrade tensorflow --user
if you got this
"ERROR: tensorboard 2.0.2 has requirement grpcio>=1.24.3, but you'll have grpcio 1.22.0 which is incompatible."
Upgrade grpcio
>> pip3 install --upgrade grpcio --user
The right answer is : $("#videoContainer")[0].pause();
In my scripts, I either use the shorthand:
window.console && console.log(...) // only log if the function exists
or, if it's not possible or feasible to edit every console.log line, I create a fake console:
// check to see if console exists. If not, create an empty object for it,
// then create and empty logging function which does nothing.
//
// REMEMBER: put this before any other console.log calls
!window.console && (window.console = {} && window.console.log = function () {});
If additional table doesn't fit, you can write your own function for translation.
The plus of sql function over case is, that you can use it in various places, and keep translation logic in one place.
Clearly you aren't sending the data with ObjectOutputStream:
you are just writing the bytes.
readObject()
you must write with writeObject().
readUTF()
you must write with writeUTF().
readXXX()
you must write with writeXXX(),
for most values of XXX.You can do this:
DB::transaction(function() {
//
});
Everything inside the Closure executes within a transaction. If an exception occurs it will rollback automatically.
You can write the where
clause as:
where (case when (:stateCode = '') then (1)
when (:stateCode != '') and (vw.state_cd in (:stateCode)) then 1
else 0)
end) = 1;
Alternatively, remove the case
entirely:
where (:stateCode = '') or
((:stateCode != '') and vw.state_cd in (:stateCode));
Or, even better:
where (:stateCode = '') or vw.state_cd in (:stateCode)
I scanned the above answers and the proposed keydown
/keyup
approach works only under special circumstances. If the user alt-tabs away, or uses a key gesture to open a new browser window or tab, then a keydown
will be registered, which is fine, because at that point it's impossible to tell if the key is something the web app is monitoring, or is a standard browser or OS shortcut. Coming back to the browser page, it'll still think the key is held, though it was released in the meantime. Or some key is simply kept held, while the user is switching to another tab or application with the mouse, then released outside our page.
Modifier keys (Shift
etc.) can be monitored via mousemove
etc. assuming that there is at least one mouse interaction expected when tabbing back, which is frequently the case.
For most all other keys (except modifiers, Tab
, Delete
, but including Space
, Enter
), monitoring keypress
would work for most applications - a key held down will continue to fire. There's some latency in resetting the key though, due to the periodicity of keypress
firing. Basically, if keypress
doesn't keep firing, then it's possible to rule out most of the keys. This, combined with the modifiers is pretty airtight, though I haven't explored what to do with Tab
and Backspace
.
I'm sure there's some library out there that abstracts over this DOM weakness, or maybe some DOM standard change took care of it, since it's a rather old question.
I got this error recently by introducing an old plugin to wordpress. It loaded an older version of jquery, which happened to be placed before the jquery mouse file. There was no jquery widget file loaded with the second version, which caused the error.
No error for using the extra jquery library -- that's a problem especially if a silent fail might have happened, causing a not so silent fail later on.
A potential way around it for wordpress might be to be explicit about the dependencies that way the jquery mouse would follow the widget which would follow the correct core leaving the other jquery to be loaded afterwards. Still might cause a production error later if you don't catch that and change the default function for jquery for the second version in all the files associated with it.
2 problems with elements:
Use Attributes.
This is a working bit of code.
private void setCookie(DefaultHttpClient httpClient, String url) {
List<Cookie> cookies = httpClient.getCookieStore().getCookies();
if (cookies != null) {
CookieSyncManager.createInstance(context);
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.setAcceptCookie(true);
for (int i = 0; i < cookies.size(); i++) {
Cookie cookie = cookies.get(i);
String cookieString = cookie.getName() + "=" + cookie.getValue();
cookieManager.setCookie(url, cookieString);
}
CookieSyncManager.getInstance().sync();
}
}
Here the httpclient is the DefaultHttpClient object you used in the HttpGet/HttpPost request. Also one thing to make sure is the cookie name and value, it should be given
String cookieString = cookie.getName() + "=" + cookie.getValue();
setCookie will the set the cookie for the given URL.
My version is loosely based on Matt and Steve's versions:
/**
* Returns the path of one File relative to another.
*
* @param target the target directory
* @param base the base directory
* @return target's path relative to the base directory
* @throws IOException if an error occurs while resolving the files' canonical names
*/
public static File getRelativeFile(File target, File base) throws IOException
{
String[] baseComponents = base.getCanonicalPath().split(Pattern.quote(File.separator));
String[] targetComponents = target.getCanonicalPath().split(Pattern.quote(File.separator));
// skip common components
int index = 0;
for (; index < targetComponents.length && index < baseComponents.length; ++index)
{
if (!targetComponents[index].equals(baseComponents[index]))
break;
}
StringBuilder result = new StringBuilder();
if (index != baseComponents.length)
{
// backtrack to base directory
for (int i = index; i < baseComponents.length; ++i)
result.append(".." + File.separator);
}
for (; index < targetComponents.length; ++index)
result.append(targetComponents[index] + File.separator);
if (!target.getPath().endsWith("/") && !target.getPath().endsWith("\\"))
{
// remove final path separator
result.delete(result.length() - File.separator.length(), result.length());
}
return new File(result.toString());
}
wmic bios get serialnumber
if run from a command line (start-run should also do the trick) prints out on screen the Serial Number of the product,
(for example in a toshiba laptop it would print out the serial number of the laptop.
with this serial number you can then identify your laptop model if you need ,from the makers service website-usually..:):)
I had to do exactly that.:):)
moment startOf() and endOf() is the answer you are searching for.. For Example:-
moment().startOf('year'); // set to January 1st, 12:00 am this year
moment().startOf('month'); // set to the first of this month, 12:00 am
moment().startOf('week'); // set to the first day of this week, 12:00 am
moment().startOf('day'); // set to 12:00 am today
What you have above is an object, not an array.
To make an array use [
& ]
to surround your objects.
userTestStatus = [
{ "id": 0, "name": "Available" },
{ "id": 1, "name": "Ready" },
{ "id": 2, "name": "Started" }
];
Aside from that TypeScript is a superset of JavaScript so whatever is valid JavaScript will be valid TypeScript so no other changes are needed.
Feedback clarification from OP... in need of a definition for the model posted
You can use the types defined here to represent your object model:
type MyType = {
id: number;
name: string;
}
type MyGroupType = {
[key:string]: MyType;
}
var obj: MyGroupType = {
"0": { "id": 0, "name": "Available" },
"1": { "id": 1, "name": "Ready" },
"2": { "id": 2, "name": "Started" }
};
// or if you make it an array
var arr: MyType[] = [
{ "id": 0, "name": "Available" },
{ "id": 1, "name": "Ready" },
{ "id": 2, "name": "Started" }
];
Use the not
boolean operator:
nyval = not myval
not
returns a boolean value (True
or False
):
>>> not 1
False
>>> not 0
True
If you must have an integer, cast it back:
nyval = int(not myval)
However, the python bool
type is a subclass of int
, so this may not be needed:
>>> int(not 0)
1
>>> int(not 1)
0
>>> not 0 == 1
True
>>> not 1 == 0
True
When comparing for equality you should use equals()
, because it expresses your intent in a clear way.
compareTo()
has the additional drawback that it only works on objects that implement the Comparable
interface.
This applies in general, not only for Strings.
You haven't said which version you want, but an archive of the JDK 8 source code can be downloaded here, along with JDK 7 and JDK 6.
Additionally you can browse or clone the Mercurial repositories: 8, 7, 6.
I would recommend you having a look at the basics of conditioning in bash.
The symbol "[" is a command and must have a whitespace prior to it. If you don't give whitespace after your elif, the system interprets elif[ as a a particular command which is definitely not what you'd want at this time.
Usage:
elif(A COMPULSORY WHITESPACE WITHOUT PARENTHESIS)[(A WHITE SPACE WITHOUT PARENTHESIS)conditions(A WHITESPACE WITHOUT PARENTHESIS)]
In short, edit your code segment to:
elif [ "$seconds" -gt 0 ]
You'd be fine with no compilation errors. Your final code segment should look like this:
#!/bin/sh
if [ "$seconds" -eq 0 ];then
$timezone_string="Z"
elif [ "$seconds" -gt 0 ]
then
$timezone_string=`printf "%02d:%02d" $seconds/3600 ($seconds/60)%60`
else
echo "Unknown parameter"
fi
Top down and bottom up DP are two different ways of solving the same problems. Consider a memoized (top down) vs dynamic (bottom up) programming solution to computing fibonacci numbers.
fib_cache = {}
def memo_fib(n):
global fib_cache
if n == 0 or n == 1:
return 1
if n in fib_cache:
return fib_cache[n]
ret = memo_fib(n - 1) + memo_fib(n - 2)
fib_cache[n] = ret
return ret
def dp_fib(n):
partial_answers = [1, 1]
while len(partial_answers) <= n:
partial_answers.append(partial_answers[-1] + partial_answers[-2])
return partial_answers[n]
print memo_fib(5), dp_fib(5)
I personally find memoization much more natural. You can take a recursive function and memoize it by a mechanical process (first lookup answer in cache and return it if possible, otherwise compute it recursively and then before returning, you save the calculation in the cache for future use), whereas doing bottom up dynamic programming requires you to encode an order in which solutions are calculated, such that no "big problem" is computed before the smaller problem that it depends on.
Your server tells you exactly what you need : [Hint: SSLProxyEngine]
You need to add that directive to your VirtualHost
before the Proxy
directives :
SSLProxyEngine on
ProxyPass /primary/store https://localhost:9763/store/
ProxyPassReverse /primary/store https://localhost:9763/store/
An abstract method is a method that must be implemented to make a concrete class. The declaration is in the abstract class (and any class with an abstract method must be an abstract class) and it must be implemented in a concrete class.
A virtual method is a method that can be overridden in a derived class using the override, replacing the behavior in the superclass. If you don't override, you get the original behavior. If you do, you always get the new behavior. This opposed to not virtual methods, that can not be overridden but can hide the original method. This is done using the new
modifier.
See the following example:
public class BaseClass
{
public void SayHello()
{
Console.WriteLine("Hello");
}
public virtual void SayGoodbye()
{
Console.WriteLine("Goodbye");
}
public void HelloGoodbye()
{
this.SayHello();
this.SayGoodbye();
}
}
public class DerivedClass : BaseClass
{
public new void SayHello()
{
Console.WriteLine("Hi There");
}
public override void SayGoodbye()
{
Console.WriteLine("See you later");
}
}
When I instantiate DerivedClass
and call SayHello
, or SayGoodbye
, I get "Hi There" and "See you later". If I call HelloGoodbye
, I get "Hello" and "See you later". This is because SayGoodbye
is virtual, and can be replaced by derived classes. SayHello
is only hidden, so when I call that from my base class I get my original method.
Abstract methods are implicitly virtual. They define behavior that must be present, more like an interface does.
Use (localdb)\MSSQLLocalDB
with Windows Auth
Stonehenge approach:
def giveAllLists(a, t):
if (t + 1 == len(a)):
x = []
for i in a[t]:
p = [i]
x.append(p)
return x
x = []
out = giveAllLists(a, t + 1)
for i in a[t]:
for j in range(len(out)):
p = [i]
for oz in out[j]:
p.append(oz)
x.append(p)
return x
xx= [[1,2,3],[22,34,'se'],['k']]
print(giveAllLists(xx, 0))
output:
[[1, 22, 'k'], [1, 34, 'k'], [1, 'se', 'k'], [2, 22, 'k'], [2, 34, 'k'], [2, 'se', 'k'], [3, 22, 'k'], [3, 34, 'k'], [3, 'se', 'k']]
Versioning your REST API is analogous to the versioning of any other API. Minor changes can be done in place, major changes might require a whole new API. The easiest for you is to start from scratch every time, which is when putting the version in the URL makes most sense. If you want to make life easier for the client you try to maintain backwards compatibility, which you can do with deprecation (permanent redirect), resources in several versions etc. This is more fiddly and requires more effort. But it's also what REST encourages in "Cool URIs don't change".
In the end it's just like any other API design. Weigh effort against client convenience. Consider adopting semantic versioning for your API, which makes it clear for your clients how backwards compatible your new version is.
when click on div alert key
$(document).delegate(".searchbtn", "click", function() {
var key=$.trim($('#txtkey').val());
alert(key);
});
I keep returning to this post and always end up sorting through the answers to find this simple solution that works with as many variables as needed:
[NSString stringWithFormat:@"%@/%@/%@", three, two, one];
For example:
NSString *urlForHttpGet = [NSString stringWithFormat:@"http://example.com/login/username/%@/userid/%i", userName, userId];
Simple solution for this requirement is using find()
If you're having array of objects like below,
var users = [{id: "101", name: "Choose one..."},
{id: "102", name: "shilpa"},
{id: "103", name: "anita"},
{id: "104", name: "admin"},
{id: "105", name: "user"}];
Then you can check whether the object with your value is already present or not
let data = users.find(object => object['id'] === '104');
if data is null then no admin, else it will return the existing object like below.
{id: "104", name: "admin"}
Then you can find the index of that object in the array and replace the object using below code.
let indexToUpdate = users.indexOf(data);
let newObject = {id: "104", name: "customer"};
users[indexToUpdate] = newObject;//your new object
console.log(users);
you will get value like below
[{id: "101", name: "Choose one..."},
{id: "102", name: "shilpa"},
{id: "103", name: "anita"},
{id: "104", name: "customer"},
{id: "105", name: "user"}];
hope this will help anyone.
Surround your inline text with {{ }}
.
Caveats:
}}
{{ }}
to fix it. Just retype it or paste without formatting (Cmd ⌘+Shift+V on Mac) then add {{ }}
and hit space.{{ }}
to existing text later, it can not be surrounded by other characters, e.g. if you want parenthesis around your preformatted text, you cannot fix (my text)
by adding braces ({{my text}})
. First add space around your text ( my text )
then add the {{ }}
.You can use the ToolTip class:
Creating a ToolTip for a Control
Example:
private void Form1_Load(object sender, System.EventArgs e)
{
System.Windows.Forms.ToolTip ToolTip1 = new System.Windows.Forms.ToolTip();
ToolTip1.SetToolTip(this.Button1, "Hello");
}
One can replace unicode
with u''.__class__
to handle the missing unicode
class in Python 3. For both Python 2 and 3, you can use the construct
isinstance(unicode_or_str, u''.__class__)
or
type(unicode_or_str) == type(u'')
Depending on your further processing, consider the different outcome:
Python 3
>>> isinstance('text', u''.__class__)
True
>>> isinstance(u'text', u''.__class__)
True
Python 2
>>> isinstance(u'text', u''.__class__)
True
>>> isinstance('text', u''.__class__)
False
Using the {# #}
notation, like so:
{# Everything you see here is a comment. It won't show up in the HTML output. #}
this code can be useful for you.
example of cursor use in sql server
DECLARE sampleCursor CURSOR FOR
SELECT K.Id FROM TableA K WHERE ....;
OPEN sampleCursor
FETCH NEXT FROM sampleCursor INTO @Id
WHILE @@FETCH_STATUS <> -1
BEGIN
UPDATE TableB
SET
...
If you send a signal to the pid 0, using for instance
kill(0, 2); /* SIGINT */
that signal is sent to the entire process group, thus effectively killing the child.
You can test it easily with something like:
(cat && kill 0) | python
If you then press ^D, you'll see the text "Terminated"
as an indication that the Python interpreter have indeed been killed, instead of just exited because of stdin being closed.
The following information is from:
https://scotch.io/quick-tips/pretty-urls-in-angularjs-removing-the-hashtag
It is very easy to get clean URLs and remove the hashtag from the URL in Angular.
By default, AngularJS will route URLs with a hashtag
For Example:
There are 2 things that need to be done.
Configuring $locationProvider
Setting our base for relative links
$location Service
In Angular, the $location service parses the URL in the address bar and makes changes to your application and vice versa.
I would highly recommend reading through the official Angular $location docs to get a feel for the location service and what it provides.
https://docs.angularjs.org/api/ng/service/$location
$locationProvider and html5Mode
We will do this when defining your Angular application and configuring your routes.
angular.module('noHash', [])
.config(function($routeProvider, $locationProvider) {
$routeProvider
.when('/', {
templateUrl : 'partials/home.html',
controller : mainController
})
.when('/about', {
templateUrl : 'partials/about.html',
controller : mainController
})
.when('/contact', {
templateUrl : 'partials/contact.html',
controller : mainController
});
// use the HTML5 History API
$locationProvider.html5Mode(true); });
What is the HTML5 History API? It is a standardized way to manipulate the browser history using a script. This lets Angular change the routing and URLs of our pages without refreshing the page. For more information on this, here is a good HTML5 History API Article:
http://diveintohtml5.info/history.html
Setting For Relative Links
<base>
in the <head>
of your document. This may be in the
root index.html file of your Angular app. Find the <base>
tag, and
set it to the root URL you'd like for your app.For example: <base href="/">
Fallback for Older Browsers
In Conclusion
The formula for the number of binary bits required to store n integers (for example, 0 to n - 1) is:
and round up.
For example, for values -128 to 127 (signed byte) or 0 to 255 (unsigned byte), the number of integers is 256, so n is 256, giving 8 from the above formula.
For 0 to n, use n + 1 in the above formula (there are n + 1 integers).
On your calculator, loge may just be labelled log or ln (natural logarithm).
You're thinking of a continue
statement like Java's or Python's, but VBA has no such native statement, and you can't use VBA's Next
like that.
You could achieve something like what you're trying to do using a GoTo
statement instead, but really, GoTo
should be reserved for cases where the alternatives are contrived and impractical.
In your case with a single "continue" condition, there's a really simple, clean, and readable alternative:
If Not InStr(sname, "Configuration item") Then
'// other code to copy paste and do various stuff
End If
You will need to know something about the URLs, like do they have a specific directory or some query string element because you have to match for something. Otherwise you will have to redirect on the 404. If this is what is required then do something like this in your .htaccess:
ErrorDocument 404 /index.php
An error page redirect must be relative to root so you cannot use www.mydomain.com.
If you have a pattern to match too then use 301 instead of 302 because 301 is permanent and 302 is temporary. A 301 will get the old URLs removed from the search engines and the 302 will not.
Mod Rewrite Reference: http://httpd.apache.org/docs/1.3/mod/mod_rewrite.html
A large reason is that video games require direct knowledge of the hardware underneath, often times, and there really is no great implementation for many architectures. It's the knowledge of the underlying hardware architecture that allows developers to squeeze every ounce of performance out of a gaming system. Why would you take the time to port Java to a gaming platform, and then write a game on top of that port when you could just write the game?
edit: this is to say that it's more than a "speed" or "don't have the right libraries" issue. Those two things go hand-in-hand with this, but it's more a matter of "how do I make a system like the cell b.e. run my java code? there aren't really any good java compilers that can manage the pipelines and vectors like i need.."
...
for(int i=0;i<3;i++){ //Rows
for(int j=0;j<5;j++){ //Cols
printf("%<...>\t",var);
}
printf("\n");
}
...
considering that <...> would be d,e,f,s,c... etc datatype... X)
You can use JSON-LD and the schema.org comment type to properly write comments:
{
"https://schema.org/comment": "this is a comment"
}
From this excellent article on query locks in Postgres, one can get blocked query and blocker query and their information from the following query.
CREATE VIEW lock_monitor AS(
SELECT
COALESCE(blockingl.relation::regclass::text,blockingl.locktype) as locked_item,
now() - blockeda.query_start AS waiting_duration, blockeda.pid AS blocked_pid,
blockeda.query as blocked_query, blockedl.mode as blocked_mode,
blockinga.pid AS blocking_pid, blockinga.query as blocking_query,
blockingl.mode as blocking_mode
FROM pg_catalog.pg_locks blockedl
JOIN pg_stat_activity blockeda ON blockedl.pid = blockeda.pid
JOIN pg_catalog.pg_locks blockingl ON(
( (blockingl.transactionid=blockedl.transactionid) OR
(blockingl.relation=blockedl.relation AND blockingl.locktype=blockedl.locktype)
) AND blockedl.pid != blockingl.pid)
JOIN pg_stat_activity blockinga ON blockingl.pid = blockinga.pid
AND blockinga.datid = blockeda.datid
WHERE NOT blockedl.granted
AND blockinga.datname = current_database()
);
SELECT * from lock_monitor;
As the query is long but useful, the article author has created a view for it to simplify it's usage.
xxdiff is lightweight if that's what you're after.
In the case that you have defined an appender in log4j properties and would like to update it programmatically, set the name in the log4j properties and get it by name.
Here's an example log4j.properties entry:
log4j.appender.stdout.Name=console
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.Threshold=INFO
To update it, do the following:
((ConsoleAppender) Logger.getRootLogger().getAppender("console")).setThreshold(Level.DEBUG);
Why not using: { position: fixed; bottom: 0 }
?
To complete the current answers and as the question is not language specific, some C-project use the prefix m_
to define global variables that are specific to a file - and g_
for global variables that have a scoped larger than the file they are defined.
In this case global variables defined with prefix m_
should be defined as static
.
See EDK2 (a UEFI Open-Source implementation) coding convention for an example of project using this convention.
This is how I restore RecyclerView position with GridLayoutManager after rotation when you need to reload data from internet with AsyncTaskLoader.
Make a global variable of Parcelable and GridLayoutManager and a static final string:
private Parcelable savedRecyclerLayoutState;
private GridLayoutManager mGridLayoutManager;
private static final String BUNDLE_RECYCLER_LAYOUT = "recycler_layout";
Save state of gridLayoutManager in onSaveInstance()
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putParcelable(BUNDLE_RECYCLER_LAYOUT,
mGridLayoutManager.onSaveInstanceState());
}
Restore in onRestoreInstanceState
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
//restore recycler view at same position
if (savedInstanceState != null) {
savedRecyclerLayoutState = savedInstanceState.getParcelable(BUNDLE_RECYCLER_LAYOUT);
}
}
Then when loader fetches data from internet you restore recyclerview position in onLoadFinished()
if(savedRecyclerLayoutState!=null){
mGridLayoutManager.onRestoreInstanceState(savedRecyclerLayoutState);
}
..of course you have to instantiate gridLayoutManager inside onCreate. Cheers
The currently accepted answer does not match the intended behavior described in the question. The question asks for the navigation bar to be hidden on the root view controller, but visible everywhere else, but the accepted answer hides the navigation bar on a particular view controller. What happens when another instance of the first view controller is pushed onto the stack? It will hide the navigation bar even though we are not looking at the root view controller.
Instead, @Chad M.'s strategy of using the UINavigationControllerDelegate
is a good one, and here is a more complete solution. Steps:
UINavigationController
-navigationController:willShowViewController:animated
method to show or hide the navigation bar based on whether it is showing the root view controllerComplete code for this solution can be found in this Gist. Here's the navigationController:willShowViewController:animated
implementation:
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
/* Hide navigation bar if root controller */
if ([viewController isEqual:[self.viewControllers firstObject]]) {
[self setNavigationBarHidden:YES animated:animated];
} else {
[self setNavigationBarHidden:NO animated:animated];
}
}
Restart the machine. Solve your problem. Sometimes it happens when you are trying to restart the eclipse and in-between forcefully close it.
A beautiful gem in this closed question:
The "oneliner way", altering neither of the input dicts, is
basket = dict(basket_one, **basket_two)
Learn what **basket_two
(the **
) means here.
In case of conflict, the items from basket_two
will override the ones from basket_one
. As one-liners go, this is pretty readable and transparent, and I have no compunction against using it any time a dict that's a mix of two others comes in handy (any reader who has trouble understanding it will in fact be very well served by the way this prompts him or her towards learning about dict
and the **
form;-). So, for example, uses like:
x = mungesomedict(dict(adict, **anotherdict))
are reasonably frequent occurrences in my code.
Originally submitted by Alex Martelli
Note: In Python 3, this will only work if every key in basket_two is a string
.
With modern browser i prefer a much lightweight approach with a bit of Js and CSS3...
transition: background 300ms ease-in 200ms;
Look at this demo:
If none of the solution work for you try this:
I found that my <root>/android/app/build/intermediates/assets/debug
folder was empty and by running cd android && ./gradlew assembleDebug
was not creating those files required, which are later used by javascript thread in our react native apps.
I ran manually the following command which the debug build command should have created ideally.
node node_modules/react-native/local-cli/cli.js bundle --platform android --dev true --reset-cache --entry-file index.android.js --bundle-output /<path to dir>/android/app/build/intermediates/assets/debug/index.android.bundle --assets-dest /<path to dir>/android/app/build/intermediates/res/merged/debug
After running these commands I found two bundle files in this directory <root>/android/app/build/intermediates/assets/debug
And then a I ran again cd android && ./gradlew installDebug
my app started working again.
Will debug more and would update what is failing actually.
An input field can have whitespaces, we want to prevent that.
Use String.prototype.trim():
function isEmpty(str) {
return !str.trim().length;
}
Example:
const isEmpty = str => !str.trim().length;_x000D_
_x000D_
document.getElementById("name").addEventListener("input", function() {_x000D_
if( isEmpty(this.value) ) {_x000D_
console.log( "NAME is invalid (Empty)" )_x000D_
} else {_x000D_
console.log( `NAME value is: ${this.value}` );_x000D_
}_x000D_
});
_x000D_
<input id="name" type="text">
_x000D_
You need to set the textbox to be multiline, this can be done two ways:
In the control:
<asp:TextBox runat="server" ID="MyBox" TextMode="MultiLine" Rows="10" />
Code Behind:
MyBox.TextMode = TextBoxMode.MultiLine;
MyBox.Rows = 10;
This will render as a <textarea>
The solution is in the link that you provided in your question:
datetime.combine(date.today(), time()) + timedelta(hours=1)
Full example:
from datetime import date, datetime, time, timedelta
dt = datetime.combine(date.today(), time(23, 55)) + timedelta(minutes=30)
print dt.time()
Output:
00:25:00
Using a Service Account might work for you.
I was searching for the same question and I found following code on a site. Thought to share it here:
function noBack()
{
window.history.forward()
}
noBack();
window.onload = noBack;
window.onpageshow = function(evt){ if(evt.persisted) noBack(); }
window.onunload = function(){ void(0); }
However as noted by above users, this is never a good practice and should be avoided for all reasons.
In C++, use the const_cast
as like below
char* str = const_cast<char*>("Test string");
http://ajmoore.blogspot.com/2007/11/svn-java-project-with-eclipse.html
Since Go 1.11+, GOPATH is no longer recommended, the new way is using Go Modules.
simple
:Create a directory:
mkdir simple
cd simple
Create a new module:
go mod init github.com/username/simple
# Here, the module name is: github.com/username/simple.
# You're free to choose any module name.
# It doesn't matter as long as it's unique.
# It's better to be a URL: so it can be go-gettable.
Put all your files in that directory.
Finally, run:
go run .
Alternatively, you can create an executable program by building it:
go build .
# then:
./simple # if you're on xnix
# or, just:
simple # if you're on Windows
For more information, you may read this.
Go has included support for versioned modules as proposed here since 1.11. The initial prototype vgo was announced in February 2018. In July 2018, versioned modules landed in the main Go repository. In Go 1.14, module support is considered ready for production use, and all users are encouraged to migrate to modules from other dependency management systems.
The other plus of using RecycleView
is animation, it can be done in two lines of code
RecyclerView.ItemAnimator itemAnimator = new DefaultItemAnimator();
recyclerView.setItemAnimator(itemAnimator);
But the widget is still raw, e.g you can't create header and footer.
They are the same, but i've heard people say that Developers use !=
while BA's use <>
App rejection Note:
Finally UIWbView
is dead and Apple will not longer accept it.
Apple started sending email to all the App owner who are still using UIWebView
:
Deprecated API Usage - Apple will stop accepting submissions of apps that use UIWebView
APIs.
Apple takes User Privacy very seriously and it is obvious that they won’t allow insecure webview.
So do remove UIWebView from your app as soon as possible. don't use try to use UIWebView
in new created app and I Prefer to using WKWebView
if possible
ITMS-90809: Deprecated API Usage - Apple will stop accepting submissions of apps that use UIWebView APIs . See https://developer.apple.com/documentation/uikit/uiwebview for more information.
Example:
import UIKit
import WebKit
class WebInfoController: UIViewController,WKNavigationDelegate {
var webView : WKWebView = {
var webview = WKWebView()
return webview
}()
var _fileName : String!
override func viewDidLoad() {
self.view.addSubview(webView)
webView.fillSuperview()
let url = Bundle.main.url(forResource: _fileName, withExtension: "html")!
webView.loadFileURL(url, allowingReadAccessTo: url)
let request = URLRequest(url: url)
webView.load(request)
}
func webView(webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: NSError) {
print(error.localizedDescription)
}
func webView(webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
print("Strat to load")
}
func webView(webView: WKWebView, didFinishNavigation navigation: WKNavigation!) {
print("finish to load")
}
}
The files are self explanatory. Make a file, call it anything. In my case jq2.php.
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>
// document is made ready so that the program starts when we load this page
$(document).ready(function(){
// it tells that any key activity in the "subcat_search" filed will execute the query.
$("#subcat_search").keyup(function(){
// we assemble the get link for the direction to our engine "gs.php".
var link1 = "http://127.0.0.1/jqm/gs.php?needle=" + $("#subcat_search").val();
$.ajax({
url: link1,
// ajax function is called sending the input string to "gs.php".
success: function(result){
// result is stuffed in the label.
$("#search_val").html(result);
}
});
})
});
</script>
</head>
<body>
<!-- the input field for search string -->
<input type="text" id="subcat_search">
<br>
<!-- the output field for stuffing the output. -->
<label id="search_val"></label>
</body>
</html>
Now we will include an engine, make a file, call it anything you like. In my case it is gs.php.
$head = "https://maps.googleapis.com/maps/api/place/textsearch/json?query="; //our head
$key = "your key here"; //your key
$hay = $_GET['needle'];
$hay = str_replace(" ", "+", $hay); //replacing the " " with "+" to design it as per the google's requirement
$kill = $head . $hay . "&key=" . $key; //assembling the string in proper way .
print file_get_contents($kill);
I have tried to keep the example as simple as possible. And because it executes the link on every keypress, the quota of your API will be consumed pretty fast.
Of course there is no end to things we can do, like putting the data into a table, sending to database and so on.
The oracle tag was not on the question when this answer was offered, and apparently it doesn't work with oracle, but it does work with at least postgres and mysql
No, just use the value directly:
begin
if (select count(*) from table) > 0 then
update table
end if;
end;
Note there is no need for an "else".
You can simply do it all within the update statement (ie no if
construct):
update table
set ...
where ...
and exists (select 'x' from table where ...)
Here is the best way to do it in compilation time. I have used the arg_var count answer from here.
#define PP_NARG(...) \
PP_NARG_(__VA_ARGS__,PP_RSEQ_N())
#define PP_NARG_(...) \
PP_ARG_N(__VA_ARGS__)
#define PP_ARG_N( \
_1, _2, _3, _4, _5, _6, _7, _8, _9,_10, \
_11,_12,_13,_14,_15,_16,_17,_18,_19,_20, \
_21,_22,_23,_24,_25,_26,_27,_28,_29,_30, \
_31,_32,_33,_34,_35,_36,_37,_38,_39,_40, \
_41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \
_51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \
_61,_62,_63,N,...) N
#define PP_RSEQ_N() \
63,62,61,60, \
59,58,57,56,55,54,53,52,51,50, \
49,48,47,46,45,44,43,42,41,40, \
39,38,37,36,35,34,33,32,31,30, \
29,28,27,26,25,24,23,22,21,20, \
19,18,17,16,15,14,13,12,11,10, \
9,8,7,6,5,4,3,2,1,0
#define TypedEnum(Name, ...) \
struct Name { \
enum { \
__VA_ARGS__ \
}; \
static const uint32_t Name##_MAX = PP_NARG(__VA_ARGS__); \
}
#define Enum(Name, ...) TypedEnum(Name, __VA_ARGS__)
To declare an enum:
Enum(TestEnum,
Enum_1= 0,
Enum_2= 1,
Enum_3= 2,
Enum_4= 4,
Enum_5= 8,
Enum_6= 16,
Enum_7= 32);
the max will be available here:
int array [TestEnum::TestEnum_MAX];
for(uint32_t fIdx = 0; fIdx < TestEnum::TestEnum_MAX; fIdx++)
{
array [fIdx] = 0;
}
Use data option of ajax. You can send data object to server by data
option in ajax and the type
which defines how you are sending it (either POST
or GET
). The default type is GET
method
Try this
$.ajax({
url: "ajax.aspx",
type: "get", //send it through get method
data: {
ajaxid: 4,
UserID: UserID,
EmailAddress: EmailAddress
},
success: function(response) {
//Do Something
},
error: function(xhr) {
//Do Something to handle error
}
});
And you can get the data by (if you are using PHP)
$_GET['ajaxid'] //gives 4
$_GET['UserID'] //gives you the sent userid
In aspx, I believe it is (might be wrong)
Request.QueryString["ajaxid"].ToString();
This can be done in a single pass, in O(N) time in the number of integers in the input list, and O(N) storage in the number of unique integers.
Walk through the list from front to back, with two pointers "dst" and "src" initialized to the first item. Start with an empty hash table of "integers seen". If the integer at src is not present in the hash, write it to the slot at dst and increment dst. Add the integer at src to the hash, then increment src. Repeat until src passes the end of the input list.
Always get a positive random number.
var nexnumber = Guid.NewGuid().GetHashCode();
if (nexnumber < 0)
{
nexnumber *= -1;
}
The below code works for all the screens :
.jumbotron {
background: url('backgroundimage.jpg') no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
background-size: cover;
-o-background-size: cover;
}
The cover property will resize the background image to cover the entire container, even if it has to stretch the image or cut a little bit off one of the edges.
Here's a yet another solution to your problem:
def to_bool(s):
return 1 - sum(map(ord, s)) % 2
# return 1 - sum(s.encode('ascii')) % 2 # Alternative for Python 3
It works because the sum of the ASCII codes of 'true'
is 448
, which is even, while the sum of the ASCII codes of 'false'
is 523
which is odd.
The funny thing about this solution is that its result is pretty random if the input is not one of 'true'
or 'false'
. Half of the time it will return 0
, and the other half 1
. The variant using encode
will raise an encoding error if the input is not ASCII (thus increasing the undefined-ness of the behaviour).
Seriously, I believe the most readable, and faster, solution is to use an if
:
def to_bool(s):
return 1 if s == 'true' else 0
See some microbenchmarks:
In [14]: def most_readable(s):
...: return 1 if s == 'true' else 0
In [15]: def int_cast(s):
...: return int(s == 'true')
In [16]: def str2bool(s):
...: try:
...: return ['false', 'true'].index(s)
...: except (ValueError, AttributeError):
...: raise ValueError()
In [17]: def str2bool2(s):
...: try:
...: return ('false', 'true').index(s)
...: except (ValueError, AttributeError):
...: raise ValueError()
In [18]: def to_bool(s):
...: return 1 - sum(s.encode('ascii')) % 2
In [19]: %timeit most_readable('true')
10000000 loops, best of 3: 112 ns per loop
In [20]: %timeit most_readable('false')
10000000 loops, best of 3: 109 ns per loop
In [21]: %timeit int_cast('true')
1000000 loops, best of 3: 259 ns per loop
In [22]: %timeit int_cast('false')
1000000 loops, best of 3: 262 ns per loop
In [23]: %timeit str2bool('true')
1000000 loops, best of 3: 343 ns per loop
In [24]: %timeit str2bool('false')
1000000 loops, best of 3: 325 ns per loop
In [25]: %timeit str2bool2('true')
1000000 loops, best of 3: 295 ns per loop
In [26]: %timeit str2bool2('false')
1000000 loops, best of 3: 277 ns per loop
In [27]: %timeit to_bool('true')
1000000 loops, best of 3: 607 ns per loop
In [28]: %timeit to_bool('false')
1000000 loops, best of 3: 612 ns per loop
Notice how the if
solution is at least 2.5x times faster than all the other solutions. It does not make sense to put as a requirement to avoid using if
s except if this is some kind of homework (in which case you shouldn't have asked this in the first place).
java.time.LocalDateTime.parse(
"04/02/2011 20:27:05" ,
DateTimeFormatter.ofPattern( "dd/MM/uuuu HH:mm:ss" )
)
The modern approach uses the java.time classes that supplant the venerable Joda-Time project.
Parse as a LocalDateTime
as your input lacks any indicator of time zone or offset-from-UTC.
String input = "04/02/2011 20:27:05" ;
DateTimeFormatter f = DateTimeFormatter.ofPattern( "dd/MM/uuuu HH:mm:ss" ) ;
LocalDateTime ldt = LocalDateTime.parse( input , f ) ;
ldt.toString(): 2011-02-04T20:27:05
Tip: Where possible, use the standard ISO 8601 formats when exchanging date-time values as text rather than format seen here. Conveniently, the java.time classes use the standard formats when parsing/generating strings.
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
If making a call to asp.net, this will return the error message title:
I didn't write all of formatErrorMessage myself but i find it very useful.
function formatErrorMessage(jqXHR, exception) {
if (jqXHR.status === 0) {
return ('Not connected.\nPlease verify your network connection.');
} else if (jqXHR.status == 404) {
return ('The requested page not found. [404]');
} else if (jqXHR.status == 500) {
return ('Internal Server Error [500].');
} else if (exception === 'parsererror') {
return ('Requested JSON parse failed.');
} else if (exception === 'timeout') {
return ('Time out error.');
} else if (exception === 'abort') {
return ('Ajax request aborted.');
} else {
return ('Uncaught Error.\n' + jqXHR.responseText);
}
}
var jqxhr = $.post(addresshere, function() {
alert("success");
})
.done(function() { alert("second success"); })
.fail(function(xhr, err) {
var responseTitle= $(xhr.responseText).filter('title').get(0);
alert($(responseTitle).text() + "\n" + formatErrorMessage(xhr, err) );
})
I know that we are (n-1) * (n times), but why the division by 2?
It's only (n - 1) * n
if you use a naive bubblesort. You can get a significant savings if you notice the following:
After each compare-and-swap, the largest element you've encountered will be in the last spot you were at.
After the first pass, the largest element will be in the last position; after the kth pass, the kth largest element will be in the kth last position.
Thus you don't have to sort the whole thing every time: you only need to sort n - 2 elements the second time through, n - 3 elements the third time, and so on. That means that the total number of compare/swaps you have to do is (n - 1) + (n - 2) + ...
. This is an arithmetic series, and the equation for the total number of times is (n - 1)*n / 2.
Example: if the size of the list is N = 5, then you do 4 + 3 + 2 + 1 = 10 swaps -- and notice that 10 is the same as 4 * 5 / 2.
here is a full (gmail) and simple solution... just use normal ; delimiter.. best for passing in as params.
$to = "[email protected];[email protected]"
$user = "[email protected]"
$pass = ConvertTo-SecureString -String "pass" -AsPlainText -Force
$cred = New-Object System.Management.Automation.PSCredential $user, $pass
$mailParam = @{
To = $to.Split(';')
From = "IT Alerts <[email protected]>"
Subject = "test"
Body = "test"
SmtpServer = "smtp.gmail.com"
Port = 587
Credential = $cred
}
Send-MailMessage @mailParam -UseSsl
You misread the documentation. You need to do two things:
Luckily urllib.parse.urlencode
does both those things in a single step, and that's the function you should be using.
from urllib.parse import urlencode, quote_plus
payload = {'username':'administrator', 'password':'xyz'}
result = urlencode(payload, quote_via=quote_plus)
# 'password=xyz&username=administrator'
'SET' is forgotten
ALTER TABLE ONLY users ALTER COLUMN lang SET DEFAULT 'en_GB';
Don't forget about spaces:
source=""
samples=("")
if [ $1 = "country" ]; then
source="country"
samples="US Canada Mexico..."
else
echo "try again"
fi
The most commonly used way is using jQuery for this purpose:
var safestring = $('<div>').text(unsafestring).html();
If you want to to encode all the HTML entities you will have to use a library or write it yourself.
You can use a more compact library than jQuery, like HTML Encoder and Decode
Click on View/Show Symbol/Show All Character - to show the [SOH] characters in the file Click on the [SOH] symbol in the file CTRL=H to bring up the replace Leave the 'Find What:' as is Change the 'Replace with:' to the character of your choosing (comma,semicolon, other...) Click 'Replace All' Done and done!
When I'm working with csv
files, I often use the pandas library. It makes things like this very easy. For example:
import pandas as pd
a = pd.read_csv("filea.csv")
b = pd.read_csv("fileb.csv")
b = b.dropna(axis=1)
merged = a.merge(b, on='title')
merged.to_csv("output.csv", index=False)
Some explanation follows. First, we read in the csv files:
>>> a = pd.read_csv("filea.csv")
>>> b = pd.read_csv("fileb.csv")
>>> a
title stage jan feb
0 darn 3.001 0.421 0.532
1 ok 2.829 1.036 0.751
2 three 1.115 1.146 2.921
>>> b
title mar apr may jun Unnamed: 5
0 darn 0.631 1.321 0.951 1.7510 NaN
1 ok 1.001 0.247 2.456 0.3216 NaN
2 three 0.285 1.283 0.924 956.0000 NaN
and we see there's an extra column of data (note that the first line of fileb.csv
-- title,mar,apr,may,jun,
-- has an extra comma at the end). We can get rid of that easily enough:
>>> b = b.dropna(axis=1)
>>> b
title mar apr may jun
0 darn 0.631 1.321 0.951 1.7510
1 ok 1.001 0.247 2.456 0.3216
2 three 0.285 1.283 0.924 956.0000
Now we can merge a
and b
on the title column:
>>> merged = a.merge(b, on='title')
>>> merged
title stage jan feb mar apr may jun
0 darn 3.001 0.421 0.532 0.631 1.321 0.951 1.7510
1 ok 2.829 1.036 0.751 1.001 0.247 2.456 0.3216
2 three 1.115 1.146 2.921 0.285 1.283 0.924 956.0000
and finally write this out:
>>> merged.to_csv("output.csv", index=False)
producing:
title,stage,jan,feb,mar,apr,may,jun
darn,3.001,0.421,0.532,0.631,1.321,0.951,1.751
ok,2.829,1.036,0.751,1.001,0.247,2.456,0.3216
three,1.115,1.146,2.921,0.285,1.283,0.924,956.0
Since you are conditionally indexing df$est
, you also need to conditionally index the replacement vector df$a
:
index <- df$b == 0
df$est[index] <- (df$a[index] - 5)/2.533
Of course, the variable index
is just temporary, and I use it to make the code a bit more readible. You can write it in one step:
df$est[df$b == 0] <- (df$a[df$b == 0] - 5)/2.533
For even better readibility, you can use within
:
df <- within(df, est[b==0] <- (a[b==0]-5)/2.533)
The results, regardless of which method you choose:
df
a b est
1 11.77000 2 0.000000
2 10.90000 3 0.000000
3 10.32000 2 0.000000
4 10.96000 0 2.352941
5 9.90600 0 1.936834
6 10.70000 0 2.250296
7 11.43000 1 0.000000
8 11.41000 2 0.000000
9 10.48512 4 0.000000
10 11.19000 0 2.443743
As others have pointed out, an alternative solution in your example is to use ifelse
.
Try OpenDDR, it is free unlike most other solutions mentioned.
I too have struggled with this totally obvious question. It seemed crazy that this wasn't an extremely easy-to-find feature with all the web development happening in Eclipse these days.
I was very turned off by Aptana because of how bloated it is, and the fact that it starts up a local web server (by default on port 8000) everytime you start Eclipse and you can't disable this functionality. Adobe's port of JSEclipse is now a 400Mb plugin, which is equally insane.
However, I just found a super-lightweight JavaScript editor called Eclipse HTML Editor Plugin, made by Amateras, which was exactly what I was looking for.
Package name is your android app id .
String appId = BuildConfig.APPLICATION_ID
Or
https://play.google.com/store/apps/details?id=com.whatsapp
App Id = com.whatsapp
See this blog article that describes the difference. Basically doing:
Task.Run(A)
Is the same as doing:
Task.Factory.StartNew(A, CancellationToken.None, TaskCreationOptions.DenyChildAttach, TaskScheduler.Default);
using R recursive option .. you may consider this as enhancement for good answers here
ls -arRtlh | tail -50
The HTMLParser project (http://htmlparser.sourceforge.net/) might be a possibility. It seems to be pretty decent at handling malformed HTML. The following snippet should do what you need:
Parser parser = new Parser(htmlInput);
CssSelectorNodeFilter cssFilter =
new CssSelectorNodeFilter("DIV.targetClassName");
NodeList nodes = parser.parse(cssFilter);
A simple way to do so is with Audio Services:
#import <AudioToolbox/AudioToolbox.h>
...
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
You can also get an updated version of the Eclipse's ADT plugin (based on an unreleased 24.2.0 version) that I managed to patch and compile at https://github.com/khaledev/ADT.
tar.gz file is just a tar file that's been gzipped. Both tar and gzip are available for windows.
If you like GUIs (Graphical user interface), 7zip can pack with both tar and gzip.
The garbage collector is a program which runs on the Java Virtual Machine which gets rid of objects which are not being used by a Java application anymore. It is a form of automatic memory management.
When a typical Java application is running, it is creating new objects, such as String
s and File
s, but after a certain time, those objects are not used anymore. For example, take a look at the following code:
for (File f : files) {
String s = f.getName();
}
In the above code, the String s
is being created on each iteration of the for
loop. This means that in every iteration, a little bit of memory is being allocated to make a String
object.
Going back to the code, we can see that once a single iteration is executed, in the next iteration, the String
object that was created in the previous iteration is not being used anymore -- that object is now considered "garbage".
Eventually, we'll start getting a lot of garbage, and memory will be used for objects which aren't being used anymore. If this keeps going on, eventually the Java Virtual Machine will run out of space to make new objects.
That's where the garbage collector steps in.
The garbage collector will look for objects which aren't being used anymore, and gets rid of them, freeing up the memory so other new objects can use that piece of memory.
In Java, memory management is taken care of by the garbage collector, but in other languages such as C, one needs to perform memory management on their own using functions such as malloc
and free
. Memory management is one of those things which are easy to make mistakes, which can lead to what are called memory leaks -- places where memory is not reclaimed when they are not in use anymore.
Automatic memory management schemes like garbage collection makes it so the programmer does not have to worry so much about memory management issues, so he or she can focus more on developing the applications they need to develop.
This is one of those things that's actually easier done in vanilla Javascript than jQuery. jQuery doesn't have a reset
method, but the HTML Form Element does, so you can reset all the fields in a form like this:
document.getElementById('configform').reset();
If you do this via jQuery (as seen in other answers here: $('#configform')[0].reset()
), the [0]
is fetching the same form DOM element that you would get directly via document.getElementById
. The latter approach is both more efficient and simpler though (since with the jQuery approach you first get a collection and then have to fetch an element from it, whereas with the vanilla Javascript you just get the element directly).
Like you say, you need to show some code. :-)
A stack overflow error usually happens when your function calls nest too deeply. See the Stack Overflow Code Golf thread for some examples of how this happens (though in the case of that question, the answers intentionally cause stack overflow).
A class in HTML means that in order to set attributes to it in CSS, you simply need to add a period in front of it.
For example, the CSS code of that html code may be:
.clear { height: 50px; width: 25px; }
Also, if you, as suggested by abiessu, are attempting to add the CSS clear: both;
attribute to the div to prevent anything from floating to the left or right of this div, you can use this CSS code:
.clear { clear: both; }
I couldn't possibly explain it better than wikipedia does: http://en.wikipedia.org/wiki/MIME_type
In addition to e-mail applications, Web browsers also support various MIME types. This enables the browser to display or output files that are not in HTML format.
IOW, it helps the browser (or content consumer, because it may not just be a browser) determine what content they are about to consume; this means a browser may be able to make a decision on the correct plugin to use to display content, or a media player may be able to load up the correct codec or plugin.
VARCHAR can store up to 2000 bytes of characters while VARCHAR2 can store up to 4000 bytes of characters.
If we declare datatype as VARCHAR then it will occupy space for NULL values. In the case of VARCHAR2 datatype, it will not occupy any space for NULL values. e.g.,
name varchar(10)
will reserve 6 bytes of memory even if the name is 'Ravi__', whereas
name varchar2(10)
will reserve space according to the length of the input string. e.g., 4 bytes of memory for 'Ravi__'.
Here, _ represents NULL.
NOTE: varchar will reserve space for null values and varchar2 will not reserve any space for null values.
According to this answer, the easiest way in both languages is:
Kotlin:
Glide.with(context).load(uri).apply(RequestOptions().circleCrop()).into(imageView)
Java:
Glide.with(context).load(uri).apply(new RequestOptions().circleCrop()).into(imageView)
This works on Glide 4.X.X
I don't think anyone has explained here that one issue is that you need "member pointers" rather than normal function pointers.
Member pointers to functions are not simply function pointers. In implementation terms, the compiler cannot use a simple function address because, in general, you don't know the address to call until you know which object to dereference for (think virtual functions). You also need to know the object in order to provide the this
implicit parameter, of course.
Having said that you need them, now I'll say that you really need to avoid them. Seriously, member pointers are a pain. It is much more sane to look at object-oriented design patterns that achieve the same goal, or to use a boost::function
or whatever as mentioned above - assuming you get to make that choice, that is.
If you are supplying that function pointer to existing code, so you really need a simple function pointer, you should write a function as a static member of the class. A static member function doesn't understand this
, so you'll need to pass the object in as an explicit parameter. There was once a not-that-unusual idiom along these lines for working with old C code that needs function pointers
class myclass
{
public:
virtual void myrealmethod () = 0;
static void myfunction (myclass *p);
}
void myclass::myfunction (myclass *p)
{
p->myrealmethod ();
}
Since myfunction
is really just a normal function (scope issues aside), a function pointer can be found in the normal C way.
EDIT - this kind of method is called a "class method" or a "static member function". The main difference from a non-member function is that, if you reference it from outside the class, you must specify the scope using the ::
scope resolution operator. For example, to get the function pointer, use &myclass::myfunction
and to call it use myclass::myfunction (arg);
.
This kind of thing is fairly common when using the old Win32 APIs, which were originally designed for C rather than C++. Of course in that case, the parameter is normally LPARAM or similar rather than a pointer, and some casting is needed.
Well, I'm using this one I made...
It's been working so far:
function checkNumber(value) {
return value % 1 == 0;
}
If you spot any problem with it, tell me, please.
I was also facing same issue & notice that this error occurred because the selector on which I am using select2 did not exist or was not loaded.
So make sure that $("#selector") exists by doing
if ($("#selector").length > 0)
$("#selector").select2();
I'd recommend using std::vector: something like
typedef std::vector<int> A;
typedef std::vector<A> AS;
There's nothing wrong with the slight overkill of STL, and you'll be able to spend more time implementing the specific features of your app instead of reinventing the bicycle.
This might sound like a really basic "DUH" answer, but make sure that the column you're using to Lookup from on the merging file is actually full of unique values!
I noticed earlier today that PowerQuery won't throw you an error (like in PowerPivot) and will happily allow you to run a Many-Many merge. This will result in multiple rows being produced for each record that matches with a non-unique value.
A HANDLE
is a context-specific unique identifier. By context-specific, I mean that a handle obtained from one context cannot necessarily be used in any other aribtrary context that also works on HANDLE
s.
For example, GetModuleHandle
returns a unique identifier to a currently loaded module. The returned handle can be used in other functions that accept module handles. It cannot be given to functions that require other types of handles. For example, you couldn't give a handle returned from GetModuleHandle
to HeapDestroy
and expect it to do something sensible.
The HANDLE
itself is just an integral type. Usually, but not necessarily, it is a pointer to some underlying type or memory location. For example, the HANDLE
returned by GetModuleHandle
is actually a pointer to the base virtual memory address of the module. But there is no rule stating that handles must be pointers. A handle could also just be a simple integer (which could possibly be used by some Win32 API as an index into an array).
HANDLE
s are intentionally opaque representations that provide encapsulation and abstraction from internal Win32 resources. This way, the Win32 APIs could potentially change the underlying type behind a HANDLE, without it impacting user code in any way (at least that's the idea).
Consider these three different internal implementations of a Win32 API that I just made up, and assume that Widget
is a struct
.
Widget * GetWidget (std::string name)
{
Widget *w;
w = findWidget(name);
return w;
}
void * GetWidget (std::string name)
{
Widget *w;
w = findWidget(name);
return reinterpret_cast<void *>(w);
}
typedef void * HANDLE;
HANDLE GetWidget (std::string name)
{
Widget *w;
w = findWidget(name);
return reinterpret_cast<HANDLE>(w);
}
The first example exposes the internal details about the API: it allows the user code to know that GetWidget
returns a pointer to a struct Widget
. This has a couple of consequences:
Widget
structWidget
struct Both of these consequences may be undesirable.
The second example hides this internal detail from the user code, by returning just void *
. The user code doesn't need access to the header that defines the Widget
struct.
The third example is exactly the same as the second, but we just call the void *
a HANDLE
instead. Perhaps this discourages user code from trying to figure out exactly what the void *
points to.
Why go through this trouble? Consider this fourth example of a newer version of this same API:
typedef void * HANDLE;
HANDLE GetWidget (std::string name)
{
NewImprovedWidget *w;
w = findImprovedWidget(name);
return reinterpret_cast<HANDLE>(w);
}
Notice that the function's interface is identical to the third example above. This means that user code can continue to use this new version of the API, without any changes, even though the "behind the scenes" implementation has changed to use the NewImprovedWidget
struct instead.
The handles in these example are really just a new, presumably friendlier, name for void *
, which is exactly what a HANDLE
is in the Win32 API (look it up at MSDN). It provides an opaque wall between the user code and the Win32 library's internal representations that increases portability, between versions of Windows, of code that uses the Win32 API.
If you are on the git bash try using exit;
I tried using the q or ctrl + q but they did not worked on bash.
I think you're missing something.
<ul>
<li style="height:100px;overflow:hidden;">
<div style="height:500px; background-color:black;">
</div>
</li>
</ul>
<ul>
<li style="height:100px;">
<div style="height:500px; background-color:red;">
</div>
</li>
</ul>
In FF4, this displays a 100px black bar, followed by a 500px red block.
A little bit different example:
<ul>
<li style="height:100px;overflow:hidden;">
<div style="height:500px; background-color:black;">
</div>
</li>
</ul>
<ul>
<li style="height:100px;">
<div style="height:500px; background-color:red;">
</div>
</li>
<li style="height:100px;overflow:hidden;">
<div style="height:500px; background-color:blue;">
</div>
</li>
<li style="height:100px;overflow:hidden;">
<div style="height:500px; background-color:green;">
</div>
</li>
</ul>
Update for ECMAScript 2017:
Math.clamp(x, lower, upper)
But note that as of today, it's a Stage 1 proposal. Until it gets widely supported, you can use a polyfill.
I have had a lot of difficulty with this as I have a custom spinner, if I setBackground then the Drawable would stretch. My solution to this was to add a drawable to the right of the Spinner TextView. Heres a code snippet from my Custom Spinner. The trick is to Override getView and customize the Textview as you wish.
public class NoTextSpinnerArrayAdapter extends ArrayAdapter<String> {
private String text = "0";
public NoTextSpinnerArrayAdapter(Context context, int textViewResourceId, List<String> objects) {
super(context, textViewResourceId, objects);
}
public void updateText(String text){
this.text = text;
notifyDataSetChanged();
}
public String getText(){
return text;
}
@NonNull
public View getView(int position, View convertView, @NonNull ViewGroup parent) {
View view = super.getView(position, convertView, parent);
TextView textView = view.findViewById(android.R.id.text1);
textView.setCompoundDrawablePadding(16);
textView.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.ic_menu_white_24dp, 0);
textView.setGravity(Gravity.END);
textView.setText(text);
return view;
}
}
You also need to set the Spinner background to transparent:
<lifeunlocked.valueinvestingcheatsheet.views.SelectAgainSpinner
android:id="@+id/saved_tickers_spinner"
android:background="@android:color/transparent"
android:layout_width="60dp"
android:layout_height="match_parent"
tools:layout_editor_absoluteX="248dp"
tools:layout_editor_absoluteY="16dp" />
and my custom spinner if you want it....
public class SelectAgainSpinner extends android.support.v7.widget.AppCompatSpinner {
public SelectAgainSpinner(Context context) {
super(context);
}
public SelectAgainSpinner(Context context, AttributeSet attrs) {
super(context, attrs);
}
public SelectAgainSpinner(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
public void setPopupBackgroundDrawable(Drawable background) {
super.setPopupBackgroundDrawable(background);
}
@Override
public void setSelection(int position, boolean animate) {
boolean sameSelected = position == getSelectedItemPosition();
super.setSelection(position, animate);
if (sameSelected) {
// Spinner does not call the OnItemSelectedListener if the same item is selected, so do it manually now
if (getOnItemSelectedListener() != null) {
getOnItemSelectedListener().onItemSelected(this, getSelectedView(), position, getSelectedItemId());
}
}
}
@Override
public void setSelection(int position) {
boolean sameSelected = position == getSelectedItemPosition();
super.setSelection(position);
if (sameSelected) {
// Spinner does not call the OnItemSelectedListener if the same item is selected, so do it manually now
if (getOnItemSelectedListener() != null) {
getOnItemSelectedListener().onItemSelected(this, getSelectedView(), position, getSelectedItemId());
}
}
}
}
Just like this example. You want sort this list.
[('c', 2), ('b', 2), ('a', 3)]
output:
[('a', 3), ('b', 2), ('c', 2)]
you should sort the tuples by the second item, then the first:
def letter_cmp(a, b):
if a[1] > b[1]:
return -1
elif a[1] == b[1]:
if a[0] > b[0]:
return 1
else:
return -1
else:
return 1
Then convert it to a key function:
from functools import cmp_to_key
letter_cmp_key = cmp_to_key(letter_cmp))
Now you can use your custom sort order:
[('c', 2), ('b', 2), ('a', 3)].sort(key=letter_cmp_key)
Try this simple one line code, You will get country and city of visitors from their ip remote address.
$tags = get_meta_tags('http://www.geobytes.com/IpLocator.htm?GetLocation&template=php3.txt&IpAddress=' . $_SERVER['REMOTE_ADDR']);
echo $tags['country'];
echo $tags['city'];
If you are a windows 10 + TortoiseGit 2.7 user:
In case with 'a large file' is meant beyond the 4GB limit, then my following written code logic is appropriate. The key issue to notice is the LONG data type used with the SEEK method. As a LONG is able to point beyond 2^32 data boundaries. In this example, the code is processing first processing the large file in chunks of 1GB, after the large whole 1GB chunks are processed, the left over (<1GB) bytes are processed. I use this code with calculating the CRC of files beyond the 4GB size. (using https://crc32c.machinezoo.com/ for the crc32c calculation in this example)
private uint Crc32CAlgorithmBigCrc(string fileName)
{
uint hash = 0;
byte[] buffer = null;
FileInfo fileInfo = new FileInfo(fileName);
long fileLength = fileInfo.Length;
int blockSize = 1024000000;
decimal div = fileLength / blockSize;
int blocks = (int)Math.Floor(div);
int restBytes = (int)(fileLength - (blocks * blockSize));
long offsetFile = 0;
uint interHash = 0;
Crc32CAlgorithm Crc32CAlgorithm = new Crc32CAlgorithm();
bool firstBlock = true;
using (FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read))
{
buffer = new byte[blockSize];
using (BinaryReader br = new BinaryReader(fs))
{
while (blocks > 0)
{
blocks -= 1;
fs.Seek(offsetFile, SeekOrigin.Begin);
buffer = br.ReadBytes(blockSize);
if (firstBlock)
{
firstBlock = false;
interHash = Crc32CAlgorithm.Compute(buffer);
hash = interHash;
}
else
{
hash = Crc32CAlgorithm.Append(interHash, buffer);
}
offsetFile += blockSize;
}
if (restBytes > 0)
{
Array.Resize(ref buffer, restBytes);
fs.Seek(offsetFile, SeekOrigin.Begin);
buffer = br.ReadBytes(restBytes);
hash = Crc32CAlgorithm.Append(interHash, buffer);
}
buffer = null;
}
}
//MessageBox.Show(hash.ToString());
//MessageBox.Show(hash.ToString("X"));
return hash;
}
I usually create a view and use the DESC
command:
CREATE VIEW tmp_view AS
SELECT
a.name
, a.surname
, b.ordernum
FROM customer a
JOIN orders b
ON a.id = b.id
Then, the DESC
command will show the type of each field.
DESC tmp_view
Here is how I've always done it:
public static string Serialize(object obj) {
using(MemoryStream memoryStream = new MemoryStream())
using(StreamReader reader = new StreamReader(memoryStream)) {
DataContractSerializer serializer = new DataContractSerializer(obj.GetType());
serializer.WriteObject(memoryStream, obj);
memoryStream.Position = 0;
return reader.ReadToEnd();
}
}
public static object Deserialize(string xml, Type toType) {
using(Stream stream = new MemoryStream()) {
byte[] data = System.Text.Encoding.UTF8.GetBytes(xml);
stream.Write(data, 0, data.Length);
stream.Position = 0;
DataContractSerializer deserializer = new DataContractSerializer(toType);
return deserializer.ReadObject(stream);
}
}
ASP.NET Version:4.0.30319.18408 belongs to .Net4.5 and System.Web.Http Version=4.0.0.0 is compatible for .NET4.0. So the versions that you have are not compatible. You should update you System.Web.Http to version 5.0.0.0, which is compatible with .Net4.5
In case anyone else is looking for this... as of April 2013, you can still get the free Visual Studio edition of Crystal Reports from this web site: SAP Crystal Reports - Downloads (updated url).
It installs into Visual Studio 2010 or VS 2012, and you can edit and save RPT files with as much capability as the standard Crystal Reports editor.
public static void main(String[] args) {
// Walk up all the way to the root thread group
ThreadGroup rootGroup = Thread.currentThread().getThreadGroup();
ThreadGroup parent;
while ((parent = rootGroup.getParent()) != null) {
rootGroup = parent;
}
listThreads(rootGroup, "");
}
// List all threads and recursively list all subgroup
public static void listThreads(ThreadGroup group, String indent) {
System.out.println(indent + "Group[" + group.getName() +
":" + group.getClass()+"]");
int nt = group.activeCount();
Thread[] threads = new Thread[nt*2 + 10]; //nt is not accurate
nt = group.enumerate(threads, false);
// List every thread in the group
for (int i=0; i<nt; i++) {
Thread t = threads[i];
System.out.println(indent + " Thread[" + t.getName()
+ ":" + t.getClass() + "]");
}
// Recursively list all subgroups
int ng = group.activeGroupCount();
ThreadGroup[] groups = new ThreadGroup[ng*2 + 10];
ng = group.enumerate(groups, false);
for (int i=0; i<ng; i++) {
listThreads(groups[i], indent + " ");
}
}
In my case, This problem was caused by a mismatch in my Target framework setting under each project. When I created a new project, VS 2015 defaulted to 4.5.2, however all my nuget packages were built for 4.6.
For some reason, VS 2015 was not showing me these errors. I didn't see them until I created a new empty project and tried to add my nuget project there. This behavior may have been aggravated because I had renamed the project a few times during the initial setup.
I solved the problem by
Make sure you have selected your mysql storage engine as Innodb and not MYISAM as Innodb storage engine supports foreign keys in Mysql.
Steps to create foreign keys in phpmyadmin:
INDEX
for the column you want to use as foreign key.UPDATE CASCADE specifies that the column will be updated when the referenced column is updated,
DELETE CASCADE specified rows will be deleted when the referenced rows are deleted.
Alternatively, you can also trigger sql query for the same
ALTER TABLE table_name
ADD CONSTRAINT fk_foreign_key_name
FOREIGN KEY (foreign_key_name)
REFERENCES target_table(target_key_name);
DELETE TableA
FROM TableA a
INNER JOIN TableB b
ON b.Bid = a.Bid
AND [my filter condition]
should work
try this (in CSS
) for preventing line breaks in div
texts:
white-space: nowrap;
Use table-layout property and the "fixed" value on your table.
table {
table-layout: fixed;
width: 300px; /* your desired width */
}
After setting up the entire width of the table, you can now setup the width in % of the td's.
td:nth-child(1), td:nth-child(2) {
width: 15%;
}
You can learn more about in on this link: http://www.w3schools.com/cssref/pr_tab_table-layout.asp
You could also expose the directive's controller to the parent scope, like ngForm
with name
attribute does: http://docs.angularjs.org/api/ng.directive:ngForm
Here you could find a very basic example how it could be achieved http://plnkr.co/edit/Ps8OXrfpnePFvvdFgYJf?p=preview
In this example I have myDirective
with dedicated controller with $clear
method (sort of very simple public API for the directive). I can publish this controller to the parent scope and use call this method outside the directive.
You can simply use random_number
.
If a positive integer is given as n, random_number
returns an integer: 0 <= random_number
< n.
Use it like this:
any_number = SecureRandom.random_number(100)
The output will be any number between 0 and 100.
This answer seems relevant since the OP makes reference to a need for a multi-OS solution. This Github help article details available approaches for handling lines endings cross-OS. There are global and per-repo approaches to managing cross-os line endings.
Global approach
Configure Git line endings handling on Linux or OS X:
git config --global core.autocrlf input
Configure Git line endings handling on Windows:
git config --global core.autocrlf true
Per-repo approach:
In the root of your repo, create a .gitattributes
file and define line ending settings for your project files, one line at a time in the following format: path_regex line-ending-settings
where line-ending-settings
is one of the following:
The text
value can be configured further to instruct Git on how to handle line endings for matching files:
text
- Changes line endings to OS native line endings.text eol=crlf
- Converts line endings to CRLF
on checkout.text eol=lf
- Converts line endings to LF
on checkout.text=auto
- Sensible default that leaves line handle up to Git's discretion.Here is the content of a sample .gitattributes file:
# Set the default behavior for all files.
* text=auto
# Normalized and converts to
# native line endings on checkout.
*.c text
*.h text
# Convert to CRLF line endings on checkout.
*.sln text eol=crlf
# Convert to LF line endings on checkout.
*.sh text eol=lf
# Binary files.
*.png binary
*.jpg binary
More on how to refresh your repo after changing line endings settings here. Tldr:
backup your files with Git, delete every file in your repository (except the .git directory), and then restore the files all at once. Save your current files in Git, so that none of your work is lost.
git add . -u
git commit -m "Saving files before refreshing line endings"
Remove the index and force Git to rescan the working directory.
rm .git/index
Rewrite the Git index to pick up all the new line endings.
git reset
Show the rewritten, normalized files.
In some cases, this is all that needs to be done. Others may need to complete the following additional steps:
git status
Add all your changed files back, and prepare them for a commit. This is your chance to inspect which files, if any, were unchanged.
git add -u
It is perfectly safe to see a lot of messages here that read[s] "warning: CRLF will be replaced by LF in file."
Rewrite the .gitattributes file.
git add .gitattributes
Commit the changes to your repository.
git commit -m "Normalize all the line endings"
In the click event "this" is the a tag that was clicked
jQuery('.class1 a').click( function() {
var divToSlide = $(this).parent().find(".class2");
if (divToSlide.is(":hidden")) {
divToSlide.slideDown("slow");
} else {
divToSlide.slideUp();
}
});
There's multiple ways to get to the div though you could also use .siblings, .next etc
"{0:#b}".format(my_int)
There is another way you can crop image centered:
.thumbnail{position: relative; overflow: hidden; width: 320px; height: 640px;}
.thumbnail img{
position: absolute; top: -999px; bottom: -999px; left: -999px; right: -999px;
width: auto !important; height: 100% !important; margin: auto;
}
.thumbnail img.vertical{width: 100% !important; height: auto !important;}
The only thing you will need is to add class "vertical" to vertical images, you can do it with this code:
jQuery(function($) {
$('img').one('load', function () {
var $img = $(this);
var tempImage1 = new Image();
tempImage1.src = $img.attr('src');
tempImage1.onload = function() {
var ratio = tempImage1.width / tempImage1.height;
if(!isNaN(ratio) && ratio < 1) $img.addClass('vertical');
}
}).each(function () {
if (this.complete) $(this).load();
});
});
Note: "!important" is used to override possible width, height attributes on img tag.
The best option is to stage everything but this file, and tell stash to keep the index with git stash save --keep-index
, thus stashing your unstaged file:
$ git add .
$ git reset thefiletostash
$ git stash save --keep-index
As Dan points out, thefiletostash
is the only one to be reset by the stash, but it also stashes the other files, so it's not exactly what you want.
First set the opacity explicitly in your HTML thus:
<div id="box" style="height:150px; width:150px; background-color:orange; margin:25px; opacity:1"></div>
otherwise it is 0 or null
this is then in my .js file
document.getElementById("fadeButton90").addEventListener("click", function(){
document.getElementById("box").style.opacity = document.getElementById("box").style.opacity*0.90; });
If you mean by newline the newline character it is \n and \r is the carrier return character, but if you mean by newline the line ending then it depends on the operating system: DOS uses carriage return and line feed ("\r\n") as a line ending, which Unix uses just line feed ("\n")
Here's a solution that I think is better than any posted so far:
/* s must be an even-length string. */
public static byte[] hexStringToByteArray(String s) {
int len = s.length();
byte[] data = new byte[len / 2];
for (int i = 0; i < len; i += 2) {
data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
+ Character.digit(s.charAt(i+1), 16));
}
return data;
}
Reasons why it is an improvement:
Safe with leading zeros (unlike BigInteger) and with negative byte values (unlike Byte.parseByte)
Doesn't convert the String into a char[]
, or create StringBuilder and String objects for every single byte.
No library dependencies that may not be available
Feel free to add argument checking via assert
or exceptions if the argument is not known to be safe.
Somewhere in your code there is a line #include <string>
. This by itself tells you that the program is written in C++. So using g++
is better than gcc
.
For the missing library: you should look around in the file system if you can find a file called libl.so
. Use the locate
command, try /usr/lib
, /usr/local/lib
, /opt/flex/lib
, or use the brute-force find / | grep /libl
.
Once you have found the file, you have to add the directory to the compiler command line, for example:
g++ -o scan lex.yy.c -L/opt/flex/lib -ll
You need to get the mouse position relative to the canvas
To do that you need to know the X/Y position of the canvas on the page.
This is called the canvas’s “offset”, and here’s how to get the offset. (I’m using jQuery in order to simplify cross-browser compatibility, but if you want to use raw javascript a quick Google will get that too).
var canvasOffset=$("#canvas").offset();
var offsetX=canvasOffset.left;
var offsetY=canvasOffset.top;
Then in your mouse handler, you can get the mouse X/Y like this:
function handleMouseDown(e){
mouseX=parseInt(e.clientX-offsetX);
mouseY=parseInt(e.clientY-offsetY);
}
Here is an illustrating code and fiddle that shows how to successfully track mouse events on the canvas:
http://jsfiddle.net/m1erickson/WB7Zu/
<!doctype html>
<html>
<head>
<link rel="stylesheet" type="text/css" media="all" href="css/reset.css" /> <!-- reset css -->
<script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script>
<style>
body{ background-color: ivory; }
canvas{border:1px solid red;}
</style>
<script>
$(function(){
var canvas=document.getElementById("canvas");
var ctx=canvas.getContext("2d");
var canvasOffset=$("#canvas").offset();
var offsetX=canvasOffset.left;
var offsetY=canvasOffset.top;
function handleMouseDown(e){
mouseX=parseInt(e.clientX-offsetX);
mouseY=parseInt(e.clientY-offsetY);
$("#downlog").html("Down: "+ mouseX + " / " + mouseY);
// Put your mousedown stuff here
}
function handleMouseUp(e){
mouseX=parseInt(e.clientX-offsetX);
mouseY=parseInt(e.clientY-offsetY);
$("#uplog").html("Up: "+ mouseX + " / " + mouseY);
// Put your mouseup stuff here
}
function handleMouseOut(e){
mouseX=parseInt(e.clientX-offsetX);
mouseY=parseInt(e.clientY-offsetY);
$("#outlog").html("Out: "+ mouseX + " / " + mouseY);
// Put your mouseOut stuff here
}
function handleMouseMove(e){
mouseX=parseInt(e.clientX-offsetX);
mouseY=parseInt(e.clientY-offsetY);
$("#movelog").html("Move: "+ mouseX + " / " + mouseY);
// Put your mousemove stuff here
}
$("#canvas").mousedown(function(e){handleMouseDown(e);});
$("#canvas").mousemove(function(e){handleMouseMove(e);});
$("#canvas").mouseup(function(e){handleMouseUp(e);});
$("#canvas").mouseout(function(e){handleMouseOut(e);});
}); // end $(function(){});
</script>
</head>
<body>
<p>Move, press and release the mouse</p>
<p id="downlog">Down</p>
<p id="movelog">Move</p>
<p id="uplog">Up</p>
<p id="outlog">Out</p>
<canvas id="canvas" width=300 height=300></canvas>
</body>
</html>
I installed lxml with pip in Vagrant, using Ubuntu 14.04 and had the same problem. Even though all requirements where installed, i got the same error again and again. Turned out, my VM had to little memory by default. With 1024 MB everything works fine.
Add this to your VagrantFile and lxml should properly compile / install:
config.vm.provider "virtualbox" do |vb|
vb.memory = 1024
end
Thanks to sixhobbit for the hint (see: can't installing lxml on Ubuntu 12.04).
The Oracle JDBC Driver is now available in the Oracle Maven Repository (not in Central).
<dependency>
<groupId>com.oracle.jdbc</groupId>
<artifactId>ojdbc7</artifactId>
<version>12.1.0.2</version>
</dependency>
The Oracle Maven Repository requires a user registration. Instructions can be found in:
Update 2019-10-03
I noticed Spring Boot is now using the Oracle JDBC Driver from Maven Central.
<dependency>
<groupId>com.oracle.ojdbc</groupId>
<artifactId>ojdbc10</artifactId>
<version>19.3.0.0</version>
</dependency>
For Gradle users, use:
implementation 'com.oracle.ojdbc:ojdbc10:19.3.0.0'
There is no need for user registration.
Update 2020-03-02
Oracle is now publishing the drivers under the com.oracle.database group id. See Anthony Accioly answer for more information. Thanks Anthony.
Oracle JDBC Driver compatible with JDK6, JDK7, and JDK8
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.4</version>
</dependency>
Oracle JDBC Driver compatible with JDK8, JDK9, and JDK11
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc8</artifactId>
<version>19.3.0.0</version>
</dependency>
Oracle JDBC Driver compatible with JDK10 and JDK11
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc10</artifactId>
<version>19.3.0.0</version>
</dependency>
The element.class selector is for styling situations such as this:
<span class="large"> </span>
<p class="large"> </p>
.large {
font-size:150%; font-weight:bold;
}
p.large {
color:blue;
}
Both your span and p will be assigned the font-size and font-weight from .large, but the color blue will only be assigned to p.
As others have pointed out, what you're working with is descendant selectors.
I think its good to keep the Label and not to use placeholder as mentioned above. Its good for UX as explain here: https://www.smashingmagazine.com/2018/03/ux-contact-forms-essentials-conversions/
Here example with Label inside Input fields: codepen.io/jdax/pen/mEBJNa
If you're using pure JS you can simply do it like:
var input = document.getElementById('myInput');
if(input.value.length == 0)
input.value = "Empty";
Here's a demo: http://jsfiddle.net/nYtm8/
Ctrl+Shift+P or View->Command Palette.
Type
>Convert Indentation to Spaces
press Enter.
in my case it didn't work like following
@Query("select count(e)>0 from MyEntity e where ...")
You can return it as boolean value with following
@Query(value = "SELECT CASE WHEN count(pl)> 0 THEN true ELSE false END FROM PostboxLabel pl ...")
This is my powershell newbie way of doing this
if ((Test-Path ".\Desktop\checkfile.txt") -ne "True") {
Write-Host "Damn it"
} else {
Write-Host "Yay"
}
%date%
will give you the date.
%time%
will give you the time.
The date
and time /t
commands may give you more detail.
I've tried various solutions and none worked for me, after some more research I've found a solution that worked for me here
https://gist.github.com/LGM-AdrianHum/c8cb125bc493c1ccac99b4098c7eeb60
<Style x:Key="_ListBoxItemStyle" TargetType="ListBoxItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBoxItem">
<Border Name="_Border"
Padding="2"
SnapsToDevicePixels="true">
<ContentPresenter />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="true">
<Setter TargetName="_Border" Property="Background" Value="Yellow"/>
<Setter Property="Foreground" Value="Red"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<ListBox ItemContainerStyle="{DynamicResource _ListBoxItemStyle}"
Width="200" Height="250"
ScrollViewer.VerticalScrollBarVisibility="Auto"
ScrollViewer.HorizontalScrollBarVisibility="Auto">
<ListBoxItem>Hello</ListBoxItem>
<ListBoxItem>Hi</ListBoxItem>
</ListBox>
I posted it here, as this is the first google result for this problem so some others may find it useful.
Create the hash:
hash = {:item1 => 1}
Add a new item to it:
hash[:item2] = 2
Just tell request that you are using json:true and forget about header and parse
var options = {
hostname: '127.0.0.1',
port: app.get('port'),
path: '/users',
method: 'GET',
json:true
}
request(options, function(error, response, body){
if(error) console.log(error);
else console.log(body);
});
and the same for post
var options = {
hostname: '127.0.0.1',
port: app.get('port'),
path: '/users',
method: 'POST',
json: {"name":"John", "lastname":"Doe"}
}
request(options, function(error, response, body){
if(error) console.log(error);
else console.log(body);
});
The JavaScript Object()
constructor makes an Object that you can assign members to.
myObj = new Object()
myObj.key = value;
myObj[key2] = value2; // Alternative
A quick fix is to add the _CRT_SECURE_NO_WARNINGS definition to your project's settings
Right-click your C++ and chose the "Properties" item to get to the properties window.
Now follow and expand to, "Configuration Properties"->"C/C++"->"Preprocessor"->"Preprocessor definitions".
In the "Preprocessor definitions" add
_CRT_SECURE_NO_WARNINGS
but it would be a good idea to add
_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)
as to inherit predefined definitions
IMHO & for the most part this is a good approach.
I had trouble with a .pfx file with openconnect. Renaming didn't solve the problem. I used keytool to convert it to .p12 and it worked.
keytool -importkeystore -destkeystore new.p12 -deststoretype pkcs12 -srckeystore original.pfx
In my case the password for the new file (new.p12) had to be the same as the password for the .pfx file.
Just as a tidbit:
Even (
((A)null)
instanceof A)
will return false
.
(If typecasting null
seems surprising, sometimes you have to do it, for example in situations like this:
public class Test
{
public static void test(A a)
{
System.out.println("a instanceof A: " + (a instanceof A));
}
public static void test(B b) {
// Overloaded version. Would cause reference ambiguity (compile error)
// if Test.test(null) was called without casting.
// So you need to call Test.test((A)null) or Test.test((B)null).
}
}
So Test.test((A)null)
will print a instanceof A: false
.)
P.S.: If you are hiring, please don't use this as a job interview question. :D
This worked for me.
using System.IO;
//
string readStr = File.ReadAllText(file.FullName);
string[] read = readStr.Split(new char[] {'\r','\n'},StringSplitOptions.RemoveEmptyEntries);
library(plyr)
ddply(tbl, .(Category), summarise, sum = sum(Frequency))
Try this, It supports multi file uploading,
$('#multi_file_upload').change(function(e) {
var file_id = e.target.id;
var file_name_arr = new Array();
var process_path = site_url + 'public/uploads/';
for (i = 0; i < $("#" + file_id).prop("files").length; i++) {
var form_data = new FormData();
var file_data = $("#" + file_id).prop("files")[i];
form_data.append("file_name", file_data);
if (check_multifile_logo($("#" + file_id).prop("files")[i]['name'])) {
$.ajax({
//url : site_url + "inc/upload_image.php?width=96&height=60&show_small=1",
url: site_url + "inc/upload_contact_info.php",
cache: false,
contentType: false,
processData: false,
async: false,
data: form_data,
type: 'post',
success: function(data) {
// display image
}
});
} else {
$("#" + html_div).html('');
alert('We only accept JPG, JPEG, PNG, GIF and BMP files');
}
}
});
function check_multifile_logo(file) {
var extension = file.substr((file.lastIndexOf('.') + 1))
if (extension === 'jpg' || extension === 'jpeg' || extension === 'gif' || extension === 'png' || extension === 'bmp') {
return true;
} else {
return false;
}
}
Here #multi_file_upload is the ID of image upload field.
Here's a flow chart that illustrates a for loop:
The equivalent C code would be
for(i = 2; i <= 6; i = i + 2) {
printf("%d\t", i + 1);
}
I found this and several other examples on one of Tenouk's C Laboratory practice worksheets.
type C:\temp\test.bat>C:\temp\test.log
.toLowerCase function only exists on strings. You can call toString() on anything in javascript to get a string representation. Putting this all together:
var ans = 334;
var temp = ans.toString().toLowerCase();
alert(temp);
Use QString::arg()
for the same effect.
You can do it like this:
postData[postData.length] = { name: "variable_name", value: variable_value };
The issue with the null connection is related to the findBT() function. you must change the device name from "MattsBlueTooth" to your device name as well as confirm the UUID for your service/device. Use something like BLEScanner app to confrim both on Android.
you can use html entity as •
If you want to do something a specific number of times you can always do this:
repeat 300 do my first command here && sleep 1.5
There's no pretty way. You might be able to use a proxy with the handler having the target methods and delegating everything else to them. Of course you'll have to use a factory because there'll be no constructor.
First, make sure you have Tkinter module installed.
sudo apt-get install python-tk
In python 2 the package name is Tkinter not tkinter.
from Tkinter import *
ref: http://www.techinfected.net/2015/09/how-to-install-and-use-tkinter-in-ubuntu-debian-linux-mint.html
Consider also that you can often replace both with derived tables which may be faster as well. As with all performance tuning, though, only actual tests against your actual data can tell you the best approach for your particular query.
CONVERT(DateTime, ExpireDate, 121) AS ExpireDate
will do what is needed, result:
2012-04-24 00:00:00.000
As stated in comments below, you can use also the SET ROWCOUNT clause, but just for SQL Server 2014 and older.
SET ROWCOUNT 10
UPDATE messages
SET status = 10
WHERE status = 0
SET ROWCOUNT 0
More info: http://msdn.microsoft.com/en-us/library/ms188774.aspx
Or with a temp table
DECLARE @t TABLE (id INT)
INSERT @t (id)
SELECT TOP 10 id
FROM messages
WHERE status = 0
ORDER BY priority DESC
UPDATE messages
SET status = 10
WHERE id IN (SELECT id FROM @t)
select propety
Row Source Type => Value List
Code :
ListbName.ColumnCount=2
ListbName.AddItem "value column1;value column2"
let pictureTap = UITapGestureRecognizer(target: self, action: #selector(MyInfoTableViewController.imageTapped))
userImageView.addGestureRecognizer(pictureTap)
userImageView.isUserInteractionEnabled = true
@objc func imageTapped() {
let imageView = userImageView
let newImageView = UIImageView(image: imageView?.image)
newImageView.frame = UIScreen.main.bounds
newImageView.backgroundColor = UIColor.black
newImageView.contentMode = .scaleAspectFit
newImageView.isUserInteractionEnabled = true
let tap = UITapGestureRecognizer(target: self, action: #selector(dismissFullscreenImage))
newImageView.addGestureRecognizer(tap)
self.view.addSubview(newImageView)
self.navigationController?.isNavigationBarHidden = true
self.tabBarController?.tabBar.isHidden = true
}
import urllib2
try:
fileHandle = urllib2.urlopen('http://www.python.org/fish.html')
data = fileHandle.read()
fileHandle.close()
except urllib2.URLError, e:
print 'you got an error with the code', e
You can load the images at the beginning and change the css attributes to show every image.
var images = array();
for( url in your_urls_array ){
var img = document.createElement( "img" );
//here the image attributes ( width, height, position, etc )
images.push( img );
}
function player( position )
{
images[position-1].style.display = "none" //be careful working with the first position
images[position].style.display = "block";
//reset position if needed
timer = setTimeOut( "player( position )", time );
}
=VLOOKUP(LARGE(A1:A10,ROW()),A1:B10,2,0)
Type this formula in first row of your sheet then drag down till fifth row...
its a simple vlookup
, which finds the large
value in array (A1:A10)
, the ROW()
function gives the row number (first row = 1, second row =2 and so on) and further is the lookup criteria.
Note: You can replace the ROW()
to 1,2,3,4,5 as requried...if you have this formula in other than the 1st row, then make sure you subtract some numbers from the row()
to get accurate results.
EDIT: TO check tie results
This is possible, you need to add a helper column to the sheet, here is the link. Do let me know in case things seems to be messy....
This works also in Python 3.x and centers the window on screen:
from tkinter import *
app = Tk()
app.eval('tk::PlaceWindow . center')
app.mainloop()
Suggest the correct permission, if for Apache,
sudo chown -R apache:apache apppath/app/storage
For people coming from Google, this question is not about data attributes - OP added a non-standard attribute to their HTML object, and wondered how to set it.
However, you should not add custom attributes to your properties - you should use data attributes - e.g. OP should have used data-icon
, data-url
, data-target
, etc.
In any event, it turns out that the way you set these attributes via JavaScript is the same for both cases. Use:
ele.setAttribute(attributeName, value);
to change the given attribute attributeName
to value
for the DOM element ele
.
For example:
document.getElementById("someElement").setAttribute("data-id", 2);
Note that you can also use .dataset
to set the values of data attributes, but as @racemic points out, it is 62% slower (at least in Chrome on macOS at the time of writing). So I would recommend using the setAttribute
method instead.
Using a Windows 10 guest, after I performed steps 1 through 3 from @xinampc's answer, I had to open a new File Explorer and navigated to This PC > CD Drive (D:) VirtualBox Guest Additions to run VBoxWindowsAdditions. After I ran that and went through the command prompts, Windows rebooted and I was able to see VBOXSVR under Network.
It should be noted that math.floor()
always rounds down, and therefore does not yield a sensible result for negative floating point values.
For example, -10.4 represented as an integer would usually be either truncated or rounded to -10. Yet the result of math.floor() is not the same:
math.floor(-10.4) => -11
For truncation with type conversion, the following helper function will work:
function tointeger( x )
num = tonumber( x )
return num < 0 and math.ceil( num ) or math.floor( num )
end
Reference: http://lua.2524044.n2.nabble.com/5-3-Converting-a-floating-point-number-to-integer-td7664081.html
If you use ggplot2
the preferred way of saving is to use ggsave
. First you have to plot, after creating the plot you call ggsave
:
ggplot(...)
ggsave("plot.png")
The format of the image is determined by the extension you choose for the filename. Additional parameters can be passed to ggsave
, notably width
, height
, and dpi
.
There is a library that can help with Unicode issues called ftfy. Has made my life easier.
Example 1
import ftfy
print(ftfy.fix_text('ünicode'))
output -->
ünicode
Example 2 - UTF-8
import ftfy
print(ftfy.fix_text('\xe2\x80\xa2'))
output -->
•
Example 3 - Unicode code point
import ftfy
print(ftfy.fix_text(u'\u2026'))
output -->
…
pip install ftfy
function validate(){
var re = /^[A-Za-z]+$/;
if(re.test(document.getElementById("textboxID").value))
alert('Valid Name.');
else
alert('Invalid Name.');
}
Great way of implementing Camera session in Swift 5, iOS 13
https://github.com/egzonpllana/CameraSession
Camera Session is an iOS app that tries to make the simplest possible way of implementation of AVCaptureSession.
Through the app you can find these camera session implemented:
The custom camera features like torch and rotate camera options.
At least as of CKEDITOR 4.4.5, you can set up a listener for every change to the editor's contents, rather than running a timer:
CKEDITOR.on("instanceCreated", function(event) {
event.editor.on("change", function () {
$("#trackingDiv").html(event.editor.getData());
});
});
I realize this may be too late for the OP, and doesn't show as the correct answer or have any votes (yet), but I thought I'd update the post for future readers.
From this answer:
[HttpPost]
public void Confirmation(HttpRequestMessage request)
{
var content = request.Content;
string jsonContent = content.ReadAsStringAsync().Result;
}
Note: As seen in the comments, this code could cause a deadlock and should not be used. See this blog post for more detail.
Create a new 640x480 image and fill it with purple (red+blue):
cv::Mat mat(480, 640, CV_8UC3, cv::Scalar(255,0,255));
Note:
According to the Python 2 Glossary, iterables are
all sequence types (such as
list
,str
, andtuple
) and some non-sequence types likedict
andfile
and objects of any classes you define with an__iter__()
or__getitem__()
method. Iterables can be used in a for loop and in many other places where a sequence is needed (zip(), map(), ...). When an iterable object is passed as an argument to the built-in function iter(), it returns an iterator for the object.
Of course, given the general coding style for Python based on the fact that it's “Easier to ask for forgiveness than permission.”, the general expectation is to use
try:
for i in object_in_question:
do_something
except TypeError:
do_something_for_non_iterable
But if you need to check it explicitly, you can test for an iterable by hasattr(object_in_question, "__iter__") or hasattr(object_in_question, "__getitem__")
. You need to check for both, because str
s don't have an __iter__
method (at least not in Python 2, in Python 3 they do) and because generator
objects don't have a __getitem__
method.
Is this what you need?
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp" >
<ImageView
android:id="@+id/place_category_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:contentDescription="ss"
android:paddingRight="15dp"
android:paddingTop="10dp"
android:src="@drawable/marker" />
<TextView
android:id="@+id/place_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Place Name"
android:textColor="#F00F00"
android:layout_gravity="center_vertical"
android:textSize="14sp"
android:textStyle="bold" />
<TextView
android:id="@+id/place_distance"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:layout_gravity="center_vertical"
android:text="320" />
</TableRow>
</RelativeLayout>