Actually I think that more general approach to loop through dictionary is to use iteritems():
# get tuples of term, courses
for term, term_courses in courses.iteritems():
# get tuples of course number, info
for course, info in term_courses.iteritems():
# loop through info
for k, v in info.iteritems():
print k, v
output:
assistant Peter C.
prereq cs101
...
name Programming a Robotic Car
teacher Sebastian
Or, as Matthias mentioned in comments, if you don't need keys, you can just use itervalues():
for term_courses in courses.itervalues():
for info in term_courses.itervalues():
for k, v in info.iteritems():
print k, v
Just for the record, if you want both (output and operation result) you can do:
output=`ls no_existing_file` ; result=$?.success?
use following LoadType method to use System.Reflection to load all registered(GAC) and referenced assemblies and check for typeName
public Type[] LoadType(string typeName)
{
return LoadType(typeName, true);
}
public Type[] LoadType(string typeName, bool referenced)
{
return LoadType(typeName, referenced, true);
}
private Type[] LoadType(string typeName, bool referenced, bool gac)
{
//check for problematic work
if (string.IsNullOrEmpty(typeName) || !referenced && !gac)
return new Type[] { };
Assembly currentAssembly = Assembly.GetExecutingAssembly();
List<string> assemblyFullnames = new List<string>();
List<Type> types = new List<Type>();
if (referenced)
{ //Check refrenced assemblies
foreach (AssemblyName assemblyName in currentAssembly.GetReferencedAssemblies())
{
//Load method resolve refrenced loaded assembly
Assembly assembly = Assembly.Load(assemblyName.FullName);
//Check if type is exists in assembly
var type = assembly.GetType(typeName, false, true);
if (type != null && !assemblyFullnames.Contains(assembly.FullName))
{
types.Add(type);
assemblyFullnames.Add(assembly.FullName);
}
}
}
if (gac)
{
//GAC files
string gacPath = Environment.GetFolderPath(System.Environment.SpecialFolder.Windows) + "\\assembly";
var files = GetGlobalAssemblyCacheFiles(gacPath);
foreach (string file in files)
{
try
{
//reflection only
Assembly assembly = Assembly.ReflectionOnlyLoadFrom(file);
//Check if type is exists in assembly
var type = assembly.GetType(typeName, false, true);
if (type != null && !assemblyFullnames.Contains(assembly.FullName))
{
types.Add(type);
assemblyFullnames.Add(assembly.FullName);
}
}
catch
{
//your custom handling
}
}
}
return types.ToArray();
}
public static string[] GetGlobalAssemblyCacheFiles(string path)
{
List<string> files = new List<string>();
DirectoryInfo di = new DirectoryInfo(path);
foreach (FileInfo fi in di.GetFiles("*.dll"))
{
files.Add(fi.FullName);
}
foreach (DirectoryInfo diChild in di.GetDirectories())
{
var files2 = GetGlobalAssemblyCacheFiles(diChild.FullName);
files.AddRange(files2);
}
return files.ToArray();
}
using is used when you have a resource that you want disposed after it's been used.
For instance if you allocate a File resource and only need to use it in one section of code for a little reading or writing, using is helpful for disposing of the File resource as soon as your done.
The resource being used needs to implement IDisposable to work properly.
Example:
using (File file = new File (parameters))
{
*code to do stuff with the file*
}
Use selectors like CSS3
$("banner.html>div:first-child").append(data);
You can use "\\r\\n"
also for the new line in powershell
. I have used this in servicenow tool.
In my case "\r\n"
s not working so i tried "\\r\\n"
as "\"
this symbol work as escape character in powershell
.
^[a-zA-Z]
means any a-z or A-Z at the start of a line
[^a-zA-Z]
means any character that IS NOT a-z OR A-Z
If you use copy-on-write collections it will work; however when you use list.iterator(), the returned Iterator will always reference the collection of elements as it was when ( as below ) list.iterator() was called, even if another thread modifies the collection. Any mutating methods called on a copy-on-write–based Iterator or ListIterator (such as add, set, or remove) will throw an UnsupportedOperationException.
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
public class RemoveListElementDemo {
private static final List<Integer> integerList;
static {
integerList = new CopyOnWriteArrayList<>();
integerList.add(1);
integerList.add(2);
integerList.add(3);
}
public static void remove(Integer remove) {
for(Integer integer : integerList) {
if(integer.equals(remove)) {
integerList.remove(integer);
}
}
}
public static void main(String... args) {
remove(Integer.valueOf(2));
Integer remove = Integer.valueOf(3);
for(Integer integer : integerList) {
if(integer.equals(remove)) {
integerList.remove(integer);
}
}
}
}
In my maven project this error occurs, after i closed my projects and reopens them. The dependencys wasn´t build correctly at that time. So for me the solution was just to update the Maven Dependencies of the projects!
here is the solution
Put your html and css in your /assets/ folder, then load the html file like so:
WebView wv = new WebView(this);
wv.loadUrl("file:///android_asset/yourHtml.html");
then in your html you can reference your css in the usual way
<link rel="stylesheet" type="text/css" href="main.css" />
I don't think the problem is the dependencies. I guess you are getting that error on your IDE. Then just refresh it. If it's eclipse, try running Maven->Update Dependencies
There are a couple of variables to set the max number of connections. Most likely, you're running out of file numbers first. Check ulimit -n. After that, there are settings in /proc, but those default to the tens of thousands.
More importantly, it sounds like you're doing something wrong. A single TCP connection ought to be able to use all of the bandwidth between two parties; if it isn't:
ping -s 1472
...)tc
iperf
Possibly I have misunderstood. Maybe you're doing something like Bittorrent, where you need lots of connections. If so, you need to figure out how many connections you're actually using (try netstat
or lsof
). If that number is substantial, you might:
ulimit -n
. Still, ~1000 connections (default on my system) is quite a few.iostat -x
?Also, if you are using a consumer-grade NAT router (Linksys, Netgear, DLink, etc.), beware that you may exceed its abilities with thousands of connections.
I hope this provides some help. You're really asking a networking question.
re.findall finds all the occurrence of the regex in a string and return in a list. Here, you are using a list of strings, you need this to use re.findall
Note - If the regex fails, an empty list is returned.
import re, sys
f = open('picklee', 'r')
lines = f.readlines()
regex = re.compile(r'[A-Z]+')
for line in lines:
print (re.findall(regex, line))
$this->db->select('*');
$this->db->from('table1');
$this->db->join('table2', 'table1.id = table2.id', 'inner');
$this->db->join('table3', 'table1.id = table3.id', 'inner');
$this->db->where("table1", $id );
$query = $this->db->get();
Where you can specify which id should be viewed or select in specific table. You can also select which join portion either left, right, outer, inner, left outer, and right outer on the third parameter of join method.
You need to write SSIS to copy the table and its data, constraints and triggers. We have in our organization a software called Kal Admin by kalrom Systems that has a free version for downloading (I think that the copy tables feature is optional)
df.domain.value_counts()
>>> df.domain.value_counts()
vk.com 5
twitter.com 2
google.com 1
facebook.com 1
Name: domain, dtype: int64
500 Internal Server Error is shown if your php code has fatal errors but error displaying is switched off. You may try this to see the error itself instead of 500 error page:
In your php file:
ini_set('display_errors', 1);
In .htaccess file:
php_flag display_errors 1
Yes, ToList
will create a new list, but because in this case MyObject
is a reference type then the new list will contain references to the same objects as the original list.
Updating the SimpleInt
property of an object referenced in the new list will also affect the equivalent object in the original list.
(If MyObject
was declared as a struct
rather than a class
then the new list would contain copies of the elements in the original list, and updating a property of an element in the new list would not affect the equivalent element in the original list.)
hey guys i think what you are looking for is this one using select command. With this you can specify a RANGE GREATER THAN(>) OR LESSER THAN(<) IN MySQL WITH THIS:::::
select* from <**TABLE NAME**> where year(**COLUMN NAME**) > **DATE** OR YEAR(COLUMN NAME )< **DATE**;
FOR EXAMPLE:
select name, BIRTH from pet1 where year(birth)> 1996 OR YEAR(BIRTH)< 1989;
+----------+------------+
| name | BIRTH |
+----------+------------+
| bowser | 1979-09-11 |
| chirpy | 1998-09-11 |
| whistler | 1999-09-09 |
+----------+------------+
FOR SIMPLE RANGE LIKE USE ONLY GREATER THAN / LESSER THAN
mysql> select COLUMN NAME from <TABLE NAME> where year(COLUMN NAME)> 1996;
FOR EXAMPLE mysql>
select name from pet1 where year(birth)> 1996 OR YEAR(BIRTH)< 1989;
+----------+
| name |
+----------+
| bowser |
| chirpy |
| whistler |
+----------+
3 rows in set (0.00 sec)
c#: "\""
, thus s.Replace("\"", "")
vb/vbs/vb.net: ""
thus s.Replace("""", "")
This was always the question I had when I was working on one of my application which created massive number of threads per request.
So this is a really good question and there are two aspects of this:
1. Whether my Xms and Xmx value should be same
- Most websites and even oracle docs suggest it to be the same. However, I suggest to have some 10-20% of buffer between those values to give heap resizing an option to your application in case sudden high traffic spikes OR a incidental memory leak.
2. Whether I should start my Application with lower heap size
- So here's the thing - no matter what GC Algo you use (even G1), large heap always has some trade off. The goal is to identify the behavior of your application to what heap size you can allow your GC pauses in terms of latency and throughput.
- For example, if your application has lot of threads (each thread has 1 MB stack in native memory and not in heap) but does not occupy heavy object space, then I suggest have a lower value of Xms.
- If your application creates lot of objects with increasing number of threads, then identify to what value of Xms you can set to tolerate those STW pauses. This means identify the max response time of your incoming requests you can tolerate and according tune the minimum heap size.
There are several options for removing one or more columns with dplyr::select()
and some helper functions. The helper functions can be useful because some do not require naming all the specific columns to be dropped. Note that to drop columns using select()
you need to use a leading -
to negate the column names.
Using the dplyr::starwars
sample data for some variety in column names:
library(dplyr)
starwars %>%
select(-height) %>% # a specific column name
select(-one_of('mass', 'films')) %>% # any columns named in one_of()
select(-(name:hair_color)) %>% # the range of columns from 'name' to 'hair_color'
select(-contains('color')) %>% # any column name that contains 'color'
select(-starts_with('bi')) %>% # any column name that starts with 'bi'
select(-ends_with('er')) %>% # any column name that ends with 'er'
select(-matches('^v.+s$')) %>% # any column name matching the regex pattern
select_if(~!is.list(.)) %>% # not by column name but by data type
head(2)
# A tibble: 2 x 2
homeworld species
<chr> <chr>
1 Tatooine Human
2 Tatooine Droid
You can also drop by column number:
starwars %>%
select(-2, -(4:10)) # column 2 and columns 4 through 10
A recursive solution. It's not the most efficient but I find it a bit more readable than the other examples and it doesn't rely on functools.
def deep_get(d, keys):
if not keys or d is None:
return d
return deep_get(d.get(keys[0]), keys[1:])
Example
d = {'meta': {'status': 'OK', 'status_code': 200}}
deep_get(d, ['meta', 'status_code']) # => 200
deep_get(d, ['garbage', 'status_code']) # => None
A more polished version
def deep_get(d, keys, default=None):
"""
Example:
d = {'meta': {'status': 'OK', 'status_code': 200}}
deep_get(d, ['meta', 'status_code']) # => 200
deep_get(d, ['garbage', 'status_code']) # => None
deep_get(d, ['meta', 'garbage'], default='-') # => '-'
"""
assert type(keys) is list
if d is None:
return default
if not keys:
return d
return deep_get(d.get(keys[0]), keys[1:], default)
According to SQLite Update Docs :
<!-- language: lang-java -->
@Query("UPDATE tableName SET
field1 = :value1,
field2 = :value2,
...
//some more fields to update
...
field_N= :value_N
WHERE id = :id)
int updateTour(long id,
Type value1,
Type value2,
... ,
// some more values here
... ,
Type value_N);
Example:
Entity:
@Entity(tableName = "orders")
public class Order {
@NonNull
@PrimaryKey
@ColumnInfo(name = "order_id")
private int id;
@ColumnInfo(name = "order_title")
private String title;
@ColumnInfo(name = "order_amount")
private Float amount;
@ColumnInfo(name = "order_price")
private Float price;
@ColumnInfo(name = "order_desc")
private String description;
// ... methods, getters, setters
}
Dao:
@Dao
public interface OrderDao {
@Query("SELECT * FROM orders")
List<Order> getOrderList();
@Query("SELECT * FROM orders")
LiveData<List<Order>> getOrderLiveList();
@Query("SELECT * FROM orders WHERE order_id =:orderId")
LiveData<Order> getLiveOrderById(int orderId);
/**
* Updating only price
* By order id
*/
@Query("UPDATE orders SET order_price=:price WHERE order_id = :id")
void update(Float price, int id);
/**
* Updating only amount and price
* By order id
*/
@Query("UPDATE orders SET order_amount = :amount, price = :price WHERE order_id =:id")
void update(Float amount, Float price, int id);
/**
* Updating only title and description
* By order id
*/
@Query("UPDATE orders SET order_desc = :description, order_title= :title WHERE order_id =:id")
void update(String description, String title, int id);
@Update
void update(Order order);
@Delete
void delete(Order order);
@Insert(onConflict = REPLACE)
void insert(Order order);
}
Add this line before main function:
void swapCase (char* name);
int main()
{
...
swapCase(name); // swapCase prototype should be known at this point
...
}
This is called forward declaration: compiler needs to know function prototype when function call is compiled.
This error may be also related to the fact that you have an error in your "spring.datasource.url" when you gave a wrong db name for example
It really has worked on my machine. But instead of OracleServiceORCL I found OracleServiceXE.
If everyone agrees that
return
is not necessary at the end of a function's bodyreturn
is marginally faster (according to @Alan's test, 4.3 microseconds versus 5.1)should we all stop using return
at the end of a function? I certainly won't, and I'd like to explain why. I hope to hear if other people share my opinion. And I apologize if it is not a straight answer to the OP, but more like a long subjective comment.
My main problem with not using return
is that, as Paul pointed out, there are other places in a function's body where you may need it. And if you are forced to use return
somewhere in the middle of your function, why not make all return
statements explicit? I hate being inconsistent. Also I think the code reads better; one can scan the function and easily see all exit points and values.
Paul used this example:
foo = function() {
if(a) {
return(a)
} else {
return(b)
}
}
Unfortunately, one could point out that it can easily be rewritten as:
foo = function() {
if(a) {
output <- a
} else {
output <- b
}
output
}
The latter version even conforms with some programming coding standards that advocate one return statement per function. I think a better example could have been:
bar <- function() {
while (a) {
do_stuff
for (b) {
do_stuff
if (c) return(1)
for (d) {
do_stuff
if (e) return(2)
}
}
}
return(3)
}
This would be much harder to rewrite using a single return statement: it would need multiple break
s and an intricate system of boolean variables for propagating them. All this to say that the single return rule does not play well with R. So if you are going to need to use return
in some places of your function's body, why not be consistent and use it everywhere?
I don't think the speed argument is a valid one. A 0.8 microsecond difference is nothing when you start looking at functions that actually do something. The last thing I can see is that it is less typing but hey, I'm not lazy.
Here is the method I use:
public boolean isNetworkAvailable(final Context context) {
return ((ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo() != null;
}
Even better, check to make sure it is "connected":
public boolean isNetworkAvailable(final Context context) {
final ConnectivityManager connectivityManager = ((ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE));
return connectivityManager.getActiveNetworkInfo() != null && connectivityManager.getActiveNetworkInfo().isConnected();
}
Here is how to use the method:
if (isNetworkAvailable(context)) {
// code here
} else {
// code
}
Permission needed:
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
Simply add .. import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
imports: [ .. BrowserAnimationsModule
],
in app.module.ts file.
make sure you have installed .. npm install @angular/animations@latest --save
There are several ways to define "Balanced". The main goal is to keep the depths of all nodes to be O(log(n))
.
It appears to me that the balance condition you were talking about is for AVL tree.
Here is the formal definition of AVL tree's balance condition:
For any node in AVL, the height of its left subtree differs by at most 1 from the height of its right subtree.
Next question, what is "height"?
The "height" of a node in a binary tree is the length of the longest path from that node to a leaf.
There is one weird but common case:
People define the height of an empty tree to be
(-1)
.
For example, root's left child is null
:
A (Height = 2)
/ \
(height =-1) B (Height = 1) <-- Unbalanced because 1-(-1)=2 >1
\
C (Height = 0)
Two more examples to determine:
Yes, A Balanced Tree Example:
A (h=3)
/ \
B(h=1) C (h=2)
/ / \
D (h=0) E(h=0) F (h=1)
/
G (h=0)
No, Not A Balanced Tree Example:
A (h=3)
/ \
B(h=0) C (h=2) <-- Unbalanced: 2-0 =2 > 1
/ \
E(h=1) F (h=0)
/ \
H (h=0) G (h=0)
The other answers that recommend using the object explorer and scripting the stored procedure to a new query editor window and the other queries are solid options.
I personally like using the below query to retrieve the stored procedure definition/code in a single row (I'm using Microsoft SQL Server 2014, but looks like this should work with SQL Server 2008 and up)
SELECT definition
FROM sys.sql_modules
WHERE object_id = OBJECT_ID('yourSchemaName.yourStoredProcedureName')
More info on sys.sql_modules:
When you use ng-options to populate a select list, it uses the entire object as the selected value, not just the single value you see in the select list. So in your case, you'd need to set
$scope.object.setDefault = {
id:600,
name:"def"
};
or
$scope.object.setDefault = $scope.selectItems[1];
I also recommend just outputting the value of $scope.object.setDefault in your template to see what I'm talking about getting selected.
<pre>{{object.setDefault}}</pre>
You can use IF EXIST to check for a file:
IF EXIST "filename" (
REM Do one thing
) ELSE (
REM Do another thing
)
If you do not need an "else", you can do something like this:
set __myVariable=
IF EXIST "C:\folder with space\myfile.txt" set __myVariable=C:\folder with space\myfile.txt
IF EXIST "C:\some other folder with space\myfile.txt" set __myVariable=C:\some other folder with space\myfile.txt
set __myVariable=
Here's a working example of searching for a file or a folder:
REM setup
echo "some text" > filename
mkdir "foldername"
REM finds file
IF EXIST "filename" (
ECHO file filename exists
) ELSE (
ECHO file filename does not exist
)
REM does not find file
IF EXIST "filename2.txt" (
ECHO file filename2.txt exists
) ELSE (
ECHO file filename2.txt does not exist
)
REM folders must have a trailing backslash
REM finds folder
IF EXIST "foldername\" (
ECHO folder foldername exists
) ELSE (
ECHO folder foldername does not exist
)
REM does not find folder
IF EXIST "filename\" (
ECHO folder filename exists
) ELSE (
ECHO folder filename does not exist
)
decimal Median(decimal[] xs) {
Array.Sort(xs);
return xs[xs.Length / 2];
}
Should do the trick.
-- EDIT --
For those who want the full monty, here is the complete, short, pure solution (a non-empty input array is assumed):
decimal Median(decimal[] xs) {
var ys = xs.OrderBy(x => x).ToList();
double mid = (ys.Count - 1) / 2.0;
return (ys[(int)(mid)] + ys[(int)(mid + 0.5)]) / 2;
}
I'm using this function that find all images in my letter and attaches it to the message.
Parameters: Takes your HTML (which you want to send);
Return: The necessary HTML and headers, which you can use in mail()
;
Example usage:
define("DEFCALLBACKMAIL", "[email protected]"); // WIll be shown as "from".
$final_msg = preparehtmlmail($html); // give a function your html*
mail('[email protected]', 'your subject', $final_msg['multipart'], $final_msg['headers']);
// send email with all images from html attached to letter
function preparehtmlmail($html) {
preg_match_all('~<img.*?src=.([\/.a-z0-9:_-]+).*?>~si',$html,$matches);
$i = 0;
$paths = array();
foreach ($matches[1] as $img) {
$img_old = $img;
if(strpos($img, "http://") == false) {
$uri = parse_url($img);
$paths[$i]['path'] = $_SERVER['DOCUMENT_ROOT'].$uri['path'];
$content_id = md5($img);
$html = str_replace($img_old,'cid:'.$content_id,$html);
$paths[$i++]['cid'] = $content_id;
}
}
$boundary = "--".md5(uniqid(time()));
$headers .= "MIME-Version: 1.0\n";
$headers .="Content-Type: multipart/mixed; boundary=\"$boundary\"\n";
$headers .= "From: ".DEFCALLBACKMAIL."\r\n";
$multipart = '';
$multipart .= "--$boundary\n";
$kod = 'utf-8';
$multipart .= "Content-Type: text/html; charset=$kod\n";
$multipart .= "Content-Transfer-Encoding: Quot-Printed\n\n";
$multipart .= "$html\n\n";
foreach ($paths as $path) {
if(file_exists($path['path']))
$fp = fopen($path['path'],"r");
if (!$fp) {
return false;
}
$imagetype = substr(strrchr($path['path'], '.' ),1);
$file = fread($fp, filesize($path['path']));
fclose($fp);
$message_part = "";
switch ($imagetype) {
case 'png':
case 'PNG':
$message_part .= "Content-Type: image/png";
break;
case 'jpg':
case 'jpeg':
case 'JPG':
case 'JPEG':
$message_part .= "Content-Type: image/jpeg";
break;
case 'gif':
case 'GIF':
$message_part .= "Content-Type: image/gif";
break;
}
$message_part .= "; file_name = \"$path\"\n";
$message_part .= 'Content-ID: <'.$path['cid'].">\n";
$message_part .= "Content-Transfer-Encoding: base64\n";
$message_part .= "Content-Disposition: inline; filename = \"".basename($path['path'])."\"\n\n";
$message_part .= chunk_split(base64_encode($file))."\n";
$multipart .= "--$boundary\n".$message_part."\n";
}
$multipart .= "--$boundary--\n";
return array('multipart' => $multipart, 'headers' => $headers);
}
I use this for my npm Process
#!/bin/bash
for (( ; ; ))
do
date +"%T"
echo Start Process
cd /toFolder
sudo process
date +"%T"
echo Crash
sleep 1
done
You need to use the Scatter chart type instead of Line. That will allow you to define separate X values for each series.
Use the left
function:
QString yourString = "This is a string";
QString leftSide = yourString.left(5);
qDebug() << leftSide; // output "This "
Also have a look at mid()
if you want more control.
Rails got ActiveSupport::CoreExtensions::String::Inflections
module that provides such methods. They're all worth looking at. For your example:
'Book Author Title'.parameterize.underscore.to_sym # :book_author_title
Stack memory allocation (function variables, local variables) can be problematic when your stack is too "deep" and you overflow the memory available to stack allocations. The heap is for objects that need to be accessed from multiple threads or throughout the program lifecycle. You can write an entire program without using the heap.
You can leak memory quite easily without a garbage collector, but you can also dictate when objects and memory is freed. I have run in to issues with Java when it runs the GC and I have a real time process, because the GC is an exclusive thread (nothing else can run). So if performance is critical and you can guarantee there are no leaked objects, not using a GC is very helpful. Otherwise it just makes you hate life when your application consumes memory and you have to track down the source of a leak.
my solution is :
static string GetPolyndrom(string str)
{
string Longest = "";
for (int i = 0; i < str.Length; i++)
{
if ((str.Length - 1 - i) < Longest.Length)
{
break;
}
for (int j = str.Length - 1; j > i; j--)
{
string str2 = str.Substring(i, j - i + 1);
if (str2.Length > Longest.Length)
{
if (str2 == str2.Reverse())
{
Longest = str2;
}
}
else
{
break;
}
}
}
return Longest;
}
An old thread, but a useful one... so here's some additional code.
First, in response to Craig's point about the regex being overly greedy and failing for sheet names containing a single quote, this should do the trick (replace 'SHEETNAME'!A1 with your own sheet & cell reference):
=IF(TODAY()=TODAY(), SUBSTITUTE(REGEXREPLACE(CELL("address",'SHEETNAME'!A1),"'?(.+?)'?!\$.*","$1"),"''","'", ""), "")
It uses a lazy match (the ".+?") to find a character string (squotes included) that may or may not be enclosed by squotes but is definitely terminated by bang dollar ("!$") followed by any number of characters. Google Sheets actually protects squotes within a sheet name by appending another squote (as in ''), so the SUBSTITUTE is needed to reduce these back to single squotes.
The formula also allows for sheet names that contain bangs ("!"), but will fail for names using bang dollars ("!$") - if you really need to make your sheet names to look like full absolute cell references then put a separating character between the bang and the dollar (such as a space).
Note that it will only work correctly when pointed at a different sheet from the one that the formula resides! This is because CELL("address" returns just the cell reference (not the sheet name) when used on the same sheet. If you need a sheet to show its own name then put the formula in a cell on another sheet, point it at your target sheet, and then reference the formula cell from the target sheet. I often have a "Meta" sheet in my workbooks to hold settings, common values, database matching criteria, etc so that's also where I put this formula.
As others have said many times above, Google Sheets will only notice changes to the sheet name if you set the workbook's recalculation to "On change and every minute" which you can find on the File|Settings|Calculation menu. It can take up to a whole minute for the change to be picked up.
Secondly, if like me you happen to need an inter-operable formula that works on both Google Sheets and Excel (which for older versions at least doesn't have the REGEXREPLACE function), try:
=IF(IFERROR(INFO("release"), 0)=0, IF(TODAY()=TODAY(), SUBSTITUTE(REGEXREPLACE(CELL("address",'SHEETNAME'!A1),"'?(.+?)'?!\$.*","$1"),"''","'", ""), ""), MID(CELL("filename",'SHEETNAME'!A1),FIND("]",CELL("filename",'SHEETNAME'!A1))+1,255))
This uses INFO("release") to determine which platform we are on... Excel returns a number >0 whereas Google Sheets does not implement the INFO function and generates an error which the formula traps into a 0 and uses for numerical comparison. The Google code branch is as above.
For clarity and completeness, this is the Excel-only version (which does correctly return the name of the sheet it resides on):
=MID(CELL("filename",'SHEETNAME'!A1),FIND("]",CELL("filename",'SHEETNAME'!A1))+1,255)
It looks for the "]" filename terminator in the output of CELL("filename" and extracts the sheet name from the remaining part of the string using the MID function. Excel doesn't allow sheet names to contain "]" so this works for all possible sheet names. In the inter-operable version, Excel is happy to be fed a call to the non-existent REGEXREPLACE function because it never gets to execute the Google code branch.
One point missed in the existing answers is show how to inherit the error traps. The bash
shell provides one such option for that using set
-E
If set, any trap on
ERR
is inherited by shell functions, command substitutions, and commands executed in a subshell environment. TheERR
trap is normally not inherited in such cases.
Adam Rosenfield's answer recommendation to use set -e
is right in certain cases but it has its own potential pitfalls. See GreyCat's BashFAQ - 105 - Why doesn't set -e (or set -o errexit, or trap ERR) do what I expected?
According to the manual, set -e exits
if a simple commandexits with a non-zero status. The shell does not exit if the command that fails is part of the command list immediately following a
while
oruntil
keyword, part of thetest in a if statement
, part of an&&
or||
list except the command following thefinal && or ||
,any command in a pipeline but the last
, or if the command's return value is being inverted via!
".
which means, set -e
does not work under the following simple cases (detailed explanations can be found on the wiki)
Using the arithmetic operator let
or $((..))
( bash
4.1 onwards) to increment a variable value as
#!/usr/bin/env bash
set -e
i=0
let i++ # or ((i++)) on bash 4.1 or later
echo "i is $i"
If the offending command is not part of the last command executed via &&
or ||
. For e.g. the below trap wouldn't fire when its expected to
#!/usr/bin/env bash
set -e
test -d nosuchdir && echo no dir
echo survived
When used incorrectly in an if
statement as, the exit code of the if
statement is the exit code of the last executed command. In the example below the last executed command was echo
which wouldn't fire the trap, even though the test -d
failed
#!/usr/bin/env bash
set -e
f() { if test -d nosuchdir; then echo no dir; fi; }
f
echo survived
When used with command-substitution, they are ignored, unless inherit_errexit
is set with bash
4.4
#!/usr/bin/env bash
set -e
foo=$(expr 1-1; true)
echo survived
when you use commands that look like assignments but aren't, such as export
, declare
, typeset
or local
. Here the function call to f
will not exit as local
has swept the error code that was set previously.
set -e
f() { local var=$(somecommand that fails); }
g() { local var; var=$(somecommand that fails); }
When used in a pipeline, and the offending command is not part of the last command. For e.g. the below command would still go through. One options is to enable pipefail
by returning the exit code of the first failed process:
set -e
somecommand that fails | cat -
echo survived
The ideal recommendation is to not use set -e
and implement an own version of error checking instead. More information on implementing custom error handling on one of my answers to Raise error in a Bash script
My answer is a bit different because I've tried these methods but they didn't work. My code uses an extra class that checks for a Boolean flag in a public static class as the database values are read or where I prefer it just before an object is added to a List object or something as such. See the change in the code below. I added the ThreadWatcher.StopThread property. for this explation I'm nog going to reinstate the current thread because it's not your issue but that's as easy as setting the property to false before accessing the next thread...
private void combobox2_TextChanged(object sender, EventArgs e)
{
//Stop the thread here with this
ThreadWatcher.StopThread = true;//the rest of this thread will run normally after the database function has stopped.
if (cmbDataSourceExtractor.IsBusy)
cmbDataSourceExtractor.CancelAsync();
while(cmbDataSourceExtractor.IsBusy)
Application.DoEvents();
var filledComboboxValues = new FilledComboboxValues{ V1 = combobox1.Text,
V2 = combobox2.Text};
cmbDataSourceExtractor.RunWorkerAsync(filledComboboxValues );
}
all fine
private void cmbDataSourceExtractor_DoWork(object sender, DoWorkEventArgs e)
{
if (this.cmbDataSourceExtractor.CancellationPending)
{
e.Cancel = true;
return;
}
// do stuff...
}
Now add the following class
public static class ThreadWatcher
{
public static bool StopThread { get; set; }
}
and in your class where you read the database
List<SomeObject>list = new List<SomeObject>();
...
if (!reader.IsDbNull(0))
something = reader.getString(0);
someobject = new someobject(something);
if (ThreadWatcher.StopThread == true)
break;
list.Add(something);
...
don't forget to use a finally block to properly close your database connection etc. Hope this helps! Please mark me up if you find it helpful.
If you pass non-parametrized params for RestTemplate, you'll have one Metrics for everyone single different URL that you pass, considering the parameters. You would like to use parametrized urls:
http://my-url/action?param1={param1}¶m2={param2}
instead of
http://my-url/action?param1=XXXX¶m2=YYYY
The second case is what you get by using UriComponentsBuilder class.
One way to implement the first behavior is the following:
Map<String, Object> params = new HashMap<>();
params.put("param1", "XXXX");
params.put("param2", "YYYY");
String url = "http://my-url/action?%s";
String parametrizedArgs = params.keySet().stream().map(k ->
String.format("%s={%s}", k, k)
).collect(Collectors.joining("&"));
HttpHeaders headers = new HttpHeaders();
headers.set("Accept", MediaType.APPLICATION_JSON_VALUE);
HttpEntity<String> entity = new HttpEntity<>(headers);
restTemplate.exchange(String.format(url, parametrizedArgs), HttpMethod.GET, entity, String.class, params);
If you want to use environment variable during build. Lets say setting username and password.
username= Ubuntu
password= swed24sw
Dockerfile
FROM ubuntu:16.04
ARG SMB_PASS
ARG SMB_USER
# Creates a new User
RUN useradd -ms /bin/bash $SMB_USER
# Enters the password twice.
RUN echo "$SMB_PASS\n$SMB_PASS" | smbpasswd -a $SMB_USER
Terminal Command
docker build --build-arg SMB_PASS=swed24sw --build-arg SMB_USER=Ubuntu . -t IMAGE_TAG
python doc strings are free-form, you can document it in any way you like.
Examples:
def mymethod(self, foo, bars):
"""
Does neat stuff!
Parameters:
foo - a foo of type FooType to bar with.
bars - The list of bars
"""
Now, there are some conventions, but python doesn't enforce any of them. Some projects have their own conventions. Some tools to work with docstrings also follow specific conventions.
hash_map is a non-standard extension. unordered_map is part of std::tr1, and will be moved into the std namespace for C++0x. http://en.wikipedia.org/wiki/Unordered_map_%28C%2B%2B%29
Since AngularJS 1.3.4 you can use $setDirty()
on fields (source). For example, for each field with error and marked required you can do the following:
angular.forEach($scope.form.$error.required, function(field) {
field.$setDirty();
});
While the answer of loeschg is absolutely correct I just wanna elaborate on it and give a solution for all IDE's (Eclipse, IntellJ and Android Studio) even if the errors differentiate slightly.
Make sure that you've downloaded the latest extras
as well as the Android 5.0 SDK
via the SDK-Manager.
Open the build.gradle
file of your app-module and change your compileSdkVersion
to 21. It's basically not necessary to change the targetSdkVersion
SDK-Version to 21 but it's recommended since you should always target the latest android Build-Version.
In the end you gradle-file will look like this:
android {
compileSdkVersion 21
// ...
defaultConfig {
// ...
targetSdkVersion 21
}
}
Be sure to sync your project afterwards.
When using the v7-appcompat
in Eclipse you have to use it as a library project. It isn't enough to just copy the *.jar to your /libs
folder. Please read this (click) step-by-step tutorial on developer.android.com in order to know how to import the project properly.
As soon as the project is imported, you'll realize that some folders in the /res
folder are red-underlined because of errors such as the following:
error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material'.
error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.*'
error: Error: No resource found that matches the given name: attr 'android:actionModeShareDrawable'.
The only thing you have to do is to open the project.properties
file of the android-support-v7-appcompat
and change the target from target=android-19
to target=android-21
.
Afterwards just do a Project --> Clean...
so that the changes take effect.
Similiar to Eclipse it's not enough to use only the android-support-v7-appcompat.jar
; you have to import the appcompat
as a module. Read more about it on this StackO-Post (click).
(Note: If you're only using the .jar
you'll get NoClassDefFoundErrors
on Runtime)
When you're trying to build the project you'll face issues in the res/values-v**
folders. Your message window will say something like the following:
Error:android-apt-compiler: [appcompat] resource found that matches the given name: attr 'android:colorPrimary'.
Error:(75, -1) android-apt-compiler: [appcompat] C:\[Your Path]\sdk\extras\android\support\v7\appcompat\res\values-v21\styles_base.xml:75: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton'.
// and so on
Right click on appcompat
module --> Open Module Settings (F4) --> [Dependency Tab] Select Android API 21 Platform from the dropdown --> Apply
Then just rebuild the project (Build --> Rebuild Project) and you're good to go.
This works with Windows 10, 8.x, 7, and possibly further back:
@echo Started: %date% %time%
.
.
.
@echo Completed: %date% %time%
See Davion's anwser in this post: https://stackoverflow.com/a/26429849/1804068
HTML:
<div class="parent">
<span id="mySpan">Something in English</span>
</div>
JQUERY
$('#mySpan').animate({'opacity': 0}, 400, function(){
$(this).html('Something in Spanish').animate({'opacity': 1}, 400);
});
You should remove web
middleware from routes.php
. Adding web
middleware manually causes session and request related problems in Laravel 5.2.27 and higher.
If it didn't help (still, keep routes.php
without web middleware), you can try little bit different approach:
return redirect()->back()->with('message', 'IT WORKS!');
Displaying message if it exists:
@if(session()->has('message'))
<div class="alert alert-success">
{{ session()->get('message') }}
</div>
@endif
If you use "axios": "^0.17.1" version you can do like this:
Create instance of axios:
// Default config options
const defaultOptions = {
baseURL: <CHANGE-TO-URL>,
headers: {
'Content-Type': 'application/json',
},
};
// Create instance
let instance = axios.create(defaultOptions);
// Set the AUTH token for any request
instance.interceptors.request.use(function (config) {
const token = localStorage.getItem('token');
config.headers.Authorization = token ? `Bearer ${token}` : '';
return config;
});
Then for any request the token will be select from localStorage and will be added to the request headers.
I'm using the same instance all over the app with this code:
import axios from 'axios';
const fetchClient = () => {
const defaultOptions = {
baseURL: process.env.REACT_APP_API_PATH,
method: 'get',
headers: {
'Content-Type': 'application/json',
},
};
// Create instance
let instance = axios.create(defaultOptions);
// Set the AUTH token for any request
instance.interceptors.request.use(function (config) {
const token = localStorage.getItem('token');
config.headers.Authorization = token ? `Bearer ${token}` : '';
return config;
});
return instance;
};
export default fetchClient();
Good luck.
IN:
EXISTS:
To prevent the flex items from shrinking, set the flex shrink factor to 0
:
The flex shrink factor determines how much the flex item will shrink relative to the rest of the flex items in the flex container when negative free space is distributed. When omitted, it is set to 1.
.boxcontainer .box {
flex-shrink: 0;
}
* {_x000D_
box-sizing: border-box;_x000D_
}_x000D_
.wrapper {_x000D_
width: 200px;_x000D_
background-color: #EEEEEE;_x000D_
border: 2px solid #DDDDDD;_x000D_
padding: 1rem;_x000D_
}_x000D_
.boxcontainer {_x000D_
position: relative;_x000D_
left: 0;_x000D_
border: 2px solid #BDC3C7;_x000D_
transition: all 0.4s ease;_x000D_
display: flex;_x000D_
}_x000D_
.boxcontainer .box {_x000D_
width: 100%;_x000D_
padding: 1rem;_x000D_
flex-shrink: 0;_x000D_
}_x000D_
.boxcontainer .box:first-child {_x000D_
background-color: #F47983;_x000D_
}_x000D_
.boxcontainer .box:nth-child(2) {_x000D_
background-color: #FABCC1;_x000D_
}_x000D_
#slidetrigger:checked ~ .wrapper .boxcontainer {_x000D_
left: -100%;_x000D_
}_x000D_
#overflowtrigger:checked ~ .wrapper {_x000D_
overflow: hidden;_x000D_
}
_x000D_
<input type="checkbox" id="overflowtrigger" />_x000D_
<label for="overflowtrigger">Hide overflow</label><br />_x000D_
<input type="checkbox" id="slidetrigger" />_x000D_
<label for="slidetrigger">Slide!</label>_x000D_
<div class="wrapper">_x000D_
<div class="boxcontainer">_x000D_
<div class="box">_x000D_
First bunch of content._x000D_
</div>_x000D_
<div class="box">_x000D_
Second load of content._x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
After you create image, check it with:
$ docker inspect $image_name
and check what you have in CMD option. For busy box it should be:
"Cmd": [
"/bin/sh"
]
Maybe you are overwritting CMD option in your ./mkimage.sh
The short version is, call stmt.setFetchSize(50);
and conn.setAutoCommit(false);
to avoid reading the entire ResultSet
into memory.
Here's what the docs say:
Getting results based on a cursor
By default the driver collects all the results for the query at once. This can be inconvenient for large data sets so the JDBC driver provides a means of basing a ResultSet on a database cursor and only fetching a small number of rows.
A small number of rows are cached on the client side of the connection and when exhausted the next block of rows is retrieved by repositioning the cursor.
Note:
Cursor based ResultSets cannot be used in all situations. There a number of restrictions which will make the driver silently fall back to fetching the whole ResultSet at once.
The connection to the server must be using the V3 protocol. This is the default for (and is only supported by) server versions 7.4 and later.-
The Connection must not be in autocommit mode. The backend closes cursors at the end of transactions, so in autocommit mode the backend will have closed the cursor before anything can be fetched from it.-
The Statement must be created with a ResultSet type of ResultSet.TYPE_FORWARD_ONLY. This is the default, so no code will need to be rewritten to take advantage of this, but it also means that you cannot scroll backwards or otherwise jump around in the ResultSet.-
The query given must be a single statement, not multiple statements strung together with semicolons.
Example 5.2. Setting fetch size to turn cursors on and off.
Changing code to cursor mode is as simple as setting the fetch size of the Statement to the appropriate size. Setting the fetch size back to 0 will cause all rows to be cached (the default behaviour).
// make sure autocommit is off
conn.setAutoCommit(false);
Statement st = conn.createStatement();
// Turn use of the cursor on.
st.setFetchSize(50);
ResultSet rs = st.executeQuery("SELECT * FROM mytable");
while (rs.next()) {
System.out.print("a row was returned.");
}
rs.close();
// Turn the cursor off.
st.setFetchSize(0);
rs = st.executeQuery("SELECT * FROM mytable");
while (rs.next()) {
System.out.print("many rows were returned.");
}
rs.close();
// Close the statement.
st.close();
If you want a list of columns of a certain type, you can use groupby
:
>>> df = pd.DataFrame([[1, 2.3456, 'c', 'd', 78]], columns=list("ABCDE"))
>>> df
A B C D E
0 1 2.3456 c d 78
[1 rows x 5 columns]
>>> df.dtypes
A int64
B float64
C object
D object
E int64
dtype: object
>>> g = df.columns.to_series().groupby(df.dtypes).groups
>>> g
{dtype('int64'): ['A', 'E'], dtype('float64'): ['B'], dtype('O'): ['C', 'D']}
>>> {k.name: v for k, v in g.items()}
{'object': ['C', 'D'], 'int64': ['A', 'E'], 'float64': ['B']}
For example:
sqlplus -s admin/password << EOF
whenever sqlerror exit sql.sqlcode;
set echo off
set heading off
@pl_script_1.sql
@pl_script_2.sql
exit;
EOF
I work in this space every day so I want to summarize the good comments on this in an effort to close this out:
SSL (HTTP/s) is only one layer ensuring:
WS-Security and related standards/implementations use PKI that:
The last point is important for service requests when the identity of the client (caller) is paramount to knowing IF they should be authorized to receive such data from the service. Standard SSL is one-way (server) authentication and does nothing to identify the client.
Beautiful Soup 4 supports most CSS selectors with the .select()
method, therefore you can use an id
selector such as:
soup.select('#articlebody')
If you need to specify the element's type, you can add a type selector before the id
selector:
soup.select('div#articlebody')
The .select()
method will return a collection of elements, which means that it would return the same results as the following .find_all()
method example:
soup.find_all('div', id="articlebody")
# or
soup.find_all(id="articlebody")
If you only want to select a single element, then you could just use the .find()
method:
soup.find('div', id="articlebody")
# or
soup.find(id="articlebody")
Following solution worked for me.
.algncenterdiv {
display: block;
margin-left: auto;
margin-right: auto;
}
If the error is at the time of any calculation, double check that the values does not contains any comma(,). Values must be only in integer/ float format.
packages installed using pip can be uninstalled completely using
pip uninstall <package>
pip uninstall
is likely to fail if the package is installed using python setup.py install
as they do not leave behind metadata to determine what files were installed.
packages still show up in pip list
if their paths(.pth file) still exist in your site-packages or dist-packages folder. You'll need to remove them as well in case you're removing using rm -rf
If you put your const val valName = valValue
before the class name, this way it will creates a
public static final YourClass.Kt
that will have the public static final
values.
Kotlin:
const val MY_CONST0 = 0
const val MY_CONST1 = 1
data class MyClass(var some: String)
Java decompiled:
public final class MyClassKt {
public static final int MY_CONST0 = 0;
public static final int MY_CONST1 = 1;
}
// rest of MyClass.java
There are various scripts floating around that will do that depending on how crazy you want to get. I would personally use Pete Finnigan's find_all_privs script.
If you want to write it yourself, the query gets rather challenging. Users can be granted system privileges which are visible in DBA_SYS_PRIVS
. They can be granted object privileges which are visible in DBA_TAB_PRIVS
. And they can be granted roles which are visible in DBA_ROLE_PRIVS
(roles can be default or non-default and can require a password as well, so just because a user has been granted a role doesn't mean that the user can necessarily use the privileges he acquired through the role by default). But those roles can, in turn, be granted system privileges, object privileges, and additional roles which can be viewed by looking at ROLE_SYS_PRIVS
, ROLE_TAB_PRIVS
, and ROLE_ROLE_PRIVS
. Pete's script walks through those relationships to show all the privileges that end up flowing to a user.
Working with a dictionary ->level2 above comes from a dictionary in my case (just in case anybody will find it useful) Trying the first example I stumbled over this error: "This document already has a 'DocumentElement' node." I was inspired by the answer here
and edited my code: (xmlDoc.DocumentElement.AppendChild(body))
//a dictionary:
Dictionary<string, string> Level2Data
{
{"level2", "text"},
{"level2", "other text"},
{"same_level2", "more text"}
}
//xml Decalration:
XmlDocument xmlDoc = new XmlDocument();
XmlDeclaration xmlDeclaration = xmlDoc.CreateXmlDeclaration("1.0", "UTF-8", null);
XmlElement root = xmlDoc.DocumentElement;
xmlDoc.InsertBefore(xmlDeclaration, root);
// add body
XmlElement body = xmlDoc.CreateElement(string.Empty, "body", string.Empty);
xmlDoc.AppendChild(body);
XmlElement body = xmlDoc.CreateElement(string.Empty, "body", string.Empty);
xmlDoc.DocumentElement.AppendChild(body); //without DocumentElement ->ERR
foreach (KeyValuePair<string, string> entry in Level2Data)
{
//write to xml: - it works version 1.
XmlNode keyNode = xmlDoc.CreateElement(entry.Key); //open TAB
keyNode.InnerText = entry.Value;
body.AppendChild(keyNode); //close TAB
//Write to xmml verdion 2: (uncomment the next 4 lines and comment the above 3 - version 1
//XmlElement key = xmlDoc.CreateElement(string.Empty, entry.Key, string.Empty);
//XmlText value = xmlDoc.CreateTextNode(entry.Value);
//key.AppendChild(value);
//body.AppendChild(key);
}
Both versions (1 and 2 inside foreach loop) give the output:
<?xml version="1.0" encoding="UTF-8"?>
<body>
<level1>
<level2>text</level2>
<level2>ther text</level2>
<same_level2>more text</same_level2>
</level1>
</body>
(Note: third line "same level2" in dictionary can be also level2 as the others but I wanted to ilustrate the advantage of the dictionary - in my case I needed level2 with different names.
Here are three solutions:
Solution #1 - appearance: none - with Internet Explorer 10 - 11 workaround (Demo)
--
To hide the default arrow set appearance: none
on the select element, then add your own custom arrow with background-image
select {
-webkit-appearance: none;
-moz-appearance: none;
appearance: none; /* Remove default arrow */
background-image: url(...); /* Add custom arrow */
}
Browser Support:
appearance: none
has very good browser support (caniuse) - except for Internet Explorer 11 (and later) and Firefox 34 (and later).
We can improve this technique and add support for Internet Explorer 10 and Internet Explorer 11 by adding
select::-ms-expand {
display: none; /* Hide the default arrow in Internet Explorer 10 and Internet Explorer 11 */
}
If Internet Explorer 9 is a concern, we have no way of removing the default arrow (which would mean that we would now have two arrows), but, we could use a funky Internet Explorer 9 selector.
To at least undo our custom arrow - leaving the default select arrow intact.
/* Target Internet Explorer 9 to undo the custom arrow */
@media screen and (min-width:0\0) {
select {
background-image:none\9;
padding: 5px\9;
}
}
select {
margin: 50px;
width: 150px;
padding: 5px 35px 5px 5px;
font-size: 16px;
border: 1px solid #CCC;
height: 34px;
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
background: url(https://stackoverflow.com/favicon.ico) 96% / 15% no-repeat #EEE;
}
/* CAUTION: Internet Explorer hackery ahead */
select::-ms-expand {
display: none; /* Remove default arrow in Internet Explorer 10 and 11 */
}
/* Target Internet Explorer 9 to undo the custom arrow */
@media screen and (min-width:0\0) {
select {
background: none\9;
padding: 5px\9;
}
}
_x000D_
<select>
<option>Apples</option>
<option selected>Pineapples</option>
<option>Chocklate</option>
<option>Pancakes</option>
</select>
_x000D_
This solution is easy and has good browser support - it should generally suffice.
If browser support for Internet Explorer 9 (and later) and Firefox 34 (and later) is necessary then keep reading...
Solution #2 Truncate the select element to hide the default arrow (demo)
--
Wrap the select
element in a div with a fixed width and overflow:hidden
.
Then give the select
element a width of about 20 pixels greater than the div.
The result is that the default drop-down arrow of the select
element will be hidden (due to the overflow:hidden
on the container), and you can place any background image you want on the right-hand-side of the div.
The advantage of this approach is that it is cross-browser (Internet Explorer 8 and later, WebKit, and Gecko). However, the disadvantage of this approach is that the options drop-down juts out on the right-hand-side (by the 20 pixels which we hid... because the option elements take the width of the select element).
[It should be noted, however, that if the custom select element is necessary only for mobile devices - then the above problem doesn't apply - because of the way each phone natively opens the select element. So for mobile, this may be the best solution.]
.styled select {
background: transparent;
width: 150px;
font-size: 16px;
border: 1px solid #CCC;
height: 34px;
}
.styled {
margin: 50px;
width: 120px;
height: 34px;
border: 1px solid #111;
border-radius: 3px;
overflow: hidden;
background: url(https://stackoverflow.com/favicon.ico) 96% / 20% no-repeat #EEE;
}
_x000D_
<div class="styled">
<select>
<option>Pineapples</option>
<option selected>Apples</option>
<option>Chocklate</option>
<option>Pancakes</option>
</select>
</div>
_x000D_
If the custom arrow is necessary on Firefox - prior to Version 35 - but you don't need to support old versions of Internet Explorer - then keep reading...
Solution #3 - Use the pointer-events
property (demo)
--
The idea here is to overlay an element over the native drop down arrow (to create our custom one) and then disallow pointer events on it.
Advantage: It works well in WebKit and Gecko. It looks good too (no jutting out option
elements).
Disadvantage: Internet Explorer (Internet Explorer 10 and down) doesn't support pointer-events
, which means you can't click the custom arrow. Also, another (obvious) disadvantage with this method is that you can't target your new arrow image with a hover effect or hand cursor, because we have just disabled pointer events on them!
However, with this method you can use Modernizer or conditional comments to make Internet Explorer revert to the standard built in arrow.
NB: Being that Internet Explorer 10 doesn't support conditional comments
anymore: If you want to use this approach, you should probably use Modernizr. However, it is still possible to exclude the pointer-events CSS from Internet Explorer 10 with a CSS hack described here.
.notIE {
position: relative;
display: inline-block;
}
select {
display: inline-block;
height: 30px;
width: 150px;
outline: none;
color: #74646E;
border: 1px solid #C8BFC4;
border-radius: 4px;
box-shadow: inset 1px 1px 2px #DDD8DC;
background: #FFF;
}
/* Select arrow styling */
.notIE .fancyArrow {
width: 23px;
height: 28px;
position: absolute;
display: inline-block;
top: 1px;
right: 3px;
background: url(https://stackoverflow.com/favicon.ico) right / 90% no-repeat #FFF;
pointer-events: none;
}
/*target Internet Explorer 9 and Internet Explorer 10:*/
@media screen and (min-width: 0\0) {
.notIE .fancyArrow {
display: none;
}
}
_x000D_
<!--[if !IE]> -->
<div class="notIE">
<!-- <![endif]-->
<span class="fancyArrow"></span>
<select>
<option>Apples</option>
<option selected>Pineapples</option>
<option>Chocklate</option>
<option>Pancakes</option>
</select>
<!--[if !IE]> -->
</div>
<!-- <![endif]-->
_x000D_
I don't think that has any meaning in SQL. You might be looking at Prepared Statements in JDBC or something. In that case, the question marks are placeholders for parameters to the statement.
Using rmtree
and recreating the folder could work, but I have run into errors when deleting and immediately recreating folders on network drives.
The proposed solution using walk does not work as it uses rmtree
to remove folders and then may attempt to use os.unlink
on the files that were previously in those folders. This causes an error.
The posted glob
solution will also attempt to delete non-empty folders, causing errors.
I suggest you use:
folder_path = '/path/to/folder'
for file_object in os.listdir(folder_path):
file_object_path = os.path.join(folder_path, file_object)
if os.path.isfile(file_object_path) or os.path.islink(file_object_path):
os.unlink(file_object_path)
else:
shutil.rmtree(file_object_path)
You can do this with css too.
just use position:fixed;
for what you want to be fixed when you scroll down.
you can have some examples here:
http://davidwalsh.name/demo/css-fixed-position.php
http://demo.tutorialzine.com/2010/06/microtut-how-css-position-works/demo.html
#include <windows.h>
using namespace std;
// The directory path returned by native GetCurrentDirectory() no end backslash
string getCurrentDirectoryOnWindows()
{
const unsigned long maxDir = 260;
char currentDir[maxDir];
GetCurrentDirectory(maxDir, currentDir);
return string(currentDir);
}
Using Mysql client:
mysql> SHOW GLOBAL VARIABLES LIKE 'PORT';
Interestingly, http://maps.apple.com
links will open directly in Apple Maps on an iOS device, or redirect to Google Maps otherwise (which is then intercepted on an Android device), so you can craft a careful URL that will do the right thing in both cases using an "Apple Maps" URL like:
http://maps.apple.com/?daddr=1600+Amphitheatre+Pkwy,+Mountain+View+CA
Alternatively, you can use a Google Maps url directly (without the /maps
URL component) to open directly in Google Maps on an Android device, or open in Google Maps' Mobile Web on an iOS device:
http://maps.google.com/?daddr=1+Infinite+Loop,+Cupertino+CA
Found this nice solution by MELISSA PENTA (https://www.localwisdom.com/)
HTML
<div class="wrapper">
<img src="image.jpg" />
</div>
CSS
div.wrapper {
height:200px;
line-height:200px;
overflow:hidden;
text-align:center;
width:200px;
}
div.wrapper img {
margin:-100%;
}
Center any size image in div
Used with rounded wrapper and different sized images.
CSS
.item-image {
border: 5px solid #ccc;
border-radius: 100%;
margin: 0 auto;
height: 200px;
width: 200px;
overflow: hidden;
text-align: center;
}
.item-image img {
height: 200px;
margin: -100%;
max-width: none;
width: auto;
}
Working example here codepen
Try this:
print('!* To Find Palindrome Number')
def Palindrome_Number():
n = input('Enter Number to check for palindromee')
m=n
a = 0
while(m!=0):
a = m % 10 + a * 10
m = m / 10
if( n == a):
print('%d is a palindrome number' %n)
else:
print('%d is not a palindrome number' %n)
just call back the functions
print("the furnace is now " + str(temperature) + "degrees!")
cast it to str
Change the frame size of viewcontroller.view.frame
, and then add to subview. [viewcontrollerparent.view addSubview:viewcontroller.view]
It is possible to apply the specific GridView / Table layout via custom CSS rules (as it was discussed in the <table><tbody> scrollable? thread) to fix GridView's Header. However, this approach will not work in all browsers. The 3-rd ASP.NET GridView controls (such as the ASPxGridView from DevExpress component vendor provide this functionality.
Check also the following CodeProject solutions:
I had to use the install
function instead:
conda install pandas=0.13.1
Or You can use
grep -n . file1 |tail -LineNumberToStartWith|grep regEx
This will take care of numbering the lines in the file
grep -n . file1
This will print the last-LineNumberToStartWith
tail -LineNumberToStartWith
And finally it will grep your desired lines(which will include line number as in orignal file)
grep regEX
From Excel Macro Security - www.excelfunctions.net:
Macro Security in Excel 2007, 2010 & 2013:
.....
The different Excel file types provided by the latest versions of Excel make it clear when workbook contains macros, so this in itself is a useful security measure. However, Excel also has optional macro security settings, which are controlled via the options menu. These are :
'Disable all macros without notification'
This setting does not allow any macros to run. When you open a new Excel workbook, you are not alerted to the fact that it contains macros, so you may not be aware that this is the reason a workbook does not work as expected.
'Disable all macros with notification'
This setting prevents macros from running. However, if there are macros in a workbook, a pop-up is displayed, to warn you that the macros exist and have been disabled.
'Disable all macros except digitally signed macros'
This setting only allow macros from trusted sources to run. All other macros do not run. When you open a new Excel workbook, you are not alerted to the fact that it contains macros, so you may not be aware that this is the reason a workbook does not work as expected.
'Enable all macros'
This setting allows all macros to run. When you open a new Excel workbook, you are not alerted to the fact that it contains macros and may not be aware of macros running while you have the file open.
If you trust the macros and are ok with enabling them, select this option:
'Enable all macros'
and this dialog box should not show up for macros.
As for the dialog for saving, after noting that this was running on Excel for Mac 2011, I came across the following question on SO, StackOverflow - Suppress dialog when using VBA to save a macro containing Excel file (.xlsm) as a non macro containing file (.xlsx). From it, removing the dialog does not seem to be possible, except for possibly by some Keyboard Input simulation. I would post another question to inquire about that. Sorry I could only get you halfway. The other option would be to use a Windows computer with Microsoft Excel, though I'm not sure if that is a option for you in this case.
There are several issues in your code :
You are handling the click
event of a submit button, whose default behavior is to post a request to the server and reload the page. You have to inhibit this behavior by returning false
from your handler:
onclick="SubmitFrm(); return false;"
value
cannot be called because it is a property, not a method:
var Searchtxt = document.getElementById("txtSearch").value;
The search query you are sending in the query string has to be encoded:
window.location = "http://www.mysite.com/search/?Query="
+ encodeURIComponent(Searchtxt);
I came up with this [untested]
import sys
class Tee(object):
def __init__(self, *files):
self.files = files
def write(self, obj):
for f in self.files:
f.write(obj)
f.flush() # If you want the output to be visible immediately
def flush(self) :
for f in self.files:
f.flush()
f = open('out.txt', 'w')
original = sys.stdout
sys.stdout = Tee(sys.stdout, f)
print "test" # This will go to stdout and the file out.txt
#use the original
sys.stdout = original
print "This won't appear on file" # Only on stdout
f.close()
print>>xyz
in python will expect a write()
function in xyz
. You could use your own custom object which has this. Or else, you could also have sys.stdout refer to your object, in which case it will be tee-ed even without >>xyz
.
You can use SOAP services this way too:
<?php
//Create the client object
$soapclient = new SoapClient('http://www.webservicex.net/globalweather.asmx?WSDL');
//Use the functions of the client, the params of the function are in
//the associative array
$params = array('CountryName' => 'Spain', 'CityName' => 'Alicante');
$response = $soapclient->getWeather($params);
var_dump($response);
// Get the Cities By Country
$param = array('CountryName' => 'Spain');
$response = $soapclient->getCitiesByCountry($param);
var_dump($response);
This is an example with a real service, and it works when the url is up.
Just in case the http://www.webservicex.net is down.
Here is another example using the example web service from W3C XML Web Services example, you can find more information on the link.
<?php
//Create the client object
$soapclient = new SoapClient('https://www.w3schools.com/xml/tempconvert.asmx?WSDL');
//Use the functions of the client, the params of the function are in
//the associative array
$params = array('Celsius' => '25');
$response = $soapclient->CelsiusToFahrenheit($params);
var_dump($response);
// Get the Celsius degrees from the Farenheit
$param = array('Fahrenheit' => '25');
$response = $soapclient->FahrenheitToCelsius($param);
var_dump($response);
This is working and returning the converted temperature values.
Hope this helps.
Use this:
if(typeof(String.prototype.trim) === "undefined")
{
String.prototype.trim = function()
{
return String(this).replace(/^\s+|\s+$/g, '');
};
}
The trim function will now be available as a first-class function on your strings. For example:
" dog".trim() === "dog" //true
EDIT: Took J-P's suggestion to combine the regex patterns into one. Also added the global modifier per Christoph's suggestion.
Took Matthew Crumley's idea about sniffing on the trim function prior to recreating it. This is done in case the version of JavaScript used on the client is more recent and therefore has its own, native trim function.
There is another way to accomplish that (described in more details in Stephen Walther's Pager example
Essentially, you create a link in the view:
Html.ActionLink("Next page", "Index", routeData)
In routeData you can specify name/value pairs (e.g., routeData["page"] = 5), and in the controller Index function corresponding parameters receive the value. That is,
public ViewResult Index(int? page)
will have page passed as 5. I have to admit, it's quite unusual that string ("page") automagically becomes a variable - but that's how MVC works in other languages as well...
You can use the following line to drop the first two columns (or any column you don't need):
df.drop([df.columns[0], df.columns[1]], axis=1)
I needed a 64-bit version of oracle.dataaccess.dll but this caused problems with other libraries I was using.
[BadImageFormatException: Could not load file or assembly 'Oracle.DataAccess' or one of its dependencies. An attempt was made to load a program with an incorrect format.]
I followed several steps above. Going to advance settings on the projects pool to toggle allow 32bit worked but I wasn't content to leave it like that so i turned it back on.
My project also had references that relied on Elmah and log4net references. I downloaded the latest version of these and my project was able to build and run fine without messing with the pools's allow 32bit setting.
For the record (and others searching like I was), you can do it in MySQL like this:
UPDATE first_table, second_table
SET first_table.color = second_table.color
WHERE first_table.id = second_table.foreign_id
I know this is an old thread but it was the first I found when searching. The += solution did not work for me. The code that I did get to work is as below.
#this bit creates the CSV if it does not already exist
$headers = "Name", "Primary Type"
$psObject = New-Object psobject
foreach($header in $headers)
{
Add-Member -InputObject $psobject -MemberType noteproperty -Name $header -Value ""
}
$psObject | Export-Csv $csvfile -NoTypeInformation
#this bit appends a new row to the CSV file
$bName = "My Name"
$bPrimaryType = "My Primary Type"
$hash = @{
"Name" = $bName
"Primary Type" = $bPrimaryType
}
$newRow = New-Object PsObject -Property $hash
Export-Csv $csvfile -inputobject $newrow -append -Force
I was able to use this as a function to loop through a series of arrays and enter the contents into the CSV file.
It works in powershell 3 and above.
In the "database" section of the logon dialog box, enter //hostname.domain:port/database
, in your case //123.45.67.89:1521/TEST
- this assumes that you don't want to set up a tnsnames.ora
file/entry for some reason.
Also make sure the firewall settings on your server are not blocking port 1521
.
From wiki
A null pointer has a reserved value, often but not necessarily the value zero, indicating that it refers to no object
..Since a null-valued pointer does not refer to a meaningful object, an attempt to dereference a null pointer usually causes a run-time error.
int val =1;
int *p = NULL;
*p = val; // Whooosh!!!!
If it's fixed layout you can do like that:
public void onClick(View v) {
ViewGroup parent = (ViewGroup) IdNumber.this.getParent();
EditText firstName = (EditText) parent.findViewById(R.id.display_name);
firstName.setText("Some Text");
}
If you want find the EditText in flexible layout, I will help you later. Hope this help.
When I've had these problems it always has been a true cycle in the dependencies expressed in Manifest.mf
So open the manifest of the project in question, on the Dependencies Tab, look at the "Required Plugins" entry. Then follow from there to the next project(s), and repeat eventually the cycle will become clear.
You can simpify this task somewhat by using the Dependency Analysis links in the bottom right corner of the Dependencies Tab, this has cycle detection and easier navigation depdendencies.
I also don't know why Maven is more tolerant,
try this:
string.Format("{0:HH:mm:ss tt}", DateTime.Now);
for further details you can check it out : How do you get the current time of day?
You do not have serial
package installed.
Try pip install serial
to install the module.
Alternatively, install it in binary form from here:
Note that you always install precompiled binaries at your own risk.
Here's the most important part from the lecture notes of CS299 (by Andrew Ng) related to the topic, which really helps me understand the difference between discriminative and generative learning algorithms.
Suppose we have two classes of animals, elephant (y = 1
) and dog (y = 0
). And x is the feature vector of the animals.
Given a training set, an algorithm like logistic regression or the perceptron algorithm (basically) tries to find a straight line — that is, a decision boundary — that separates the elephants and dogs. Then, to classify a new animal as either an elephant or a dog, it checks on which side of the decision boundary it falls, and makes its prediction accordingly. We call these discriminative learning algorithm.
Here's a different approach. First, looking at elephants, we can build a model of what elephants look like. Then, looking at dogs, we can build a separate model of what dogs look like. Finally, to classify a new animal, we can match the new animal against the elephant model, and match it against the dog model, to see whether the new animal looks more like the elephants or more like the dogs we had seen in the training set. We call these generative learning algorithm.
As simple as joining lists in python itself.
ansible -m debug -a msg="{{ '-'.join(('list', 'joined', 'together')) }}" localhost
localhost | SUCCESS => {
"msg": "list-joined-together" }
Works the same way using variables:
ansible -m debug -a msg="{{ '-'.join((var1, var2, var3)) }}" localhost
There are a lot of ways to accomplish this, and this is but one of them.
$("table").find("tbody td").eq(0).children().first()
After spending almost a day, I just found out that adding the below two codes solved my issue.
Add this in the Global.asax
protected void Application_BeginRequest()
{
if (Request.HttpMethod == "OPTIONS")
{
Response.StatusCode = (int)System.Net.HttpStatusCode.OK;
Response.End();
}
}
and in the web config add the below
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*" />
<add name="Access-Control-Allow-Methods" value="*" />
<add name="Access-Control-Allow-Headers" value="Content-Type, Authorization" />
</customHeaders>
</httpProtocol>
After following the steps from @Johnride, I still got the same error.
This fixed the problem:
Tools-> Options-> Select no proxy
I had a same issue. It was working fine on the local machine but it had issues on the server. I have changed the SMTP setting. It works fine for me.
If you're using GoDaddy Plesk Hosting, use the following SMTP details.
Host = relay-hosting.secureserver.net
Port = 25
With this code i solved my problem.For back button paste these two line code.Hope this will help you.
Only paste this code on button click
super.onBackPressed();
Example:-
Button backButton = (Button)this.findViewById(R.id.back);
backButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
super.onBackPressed();
}
});
You are comparing strings. If an arguments are omitted, %1
expands to a blank so the commands become IF =="-b" GOTO SPECIFIC
for example (which is a syntax error). Wrap your strings in quotes (or square brackets).
REM this is ok
IF [%1]==[/?] GOTO BLANK
REM I'd recommend using quotes exclusively
IF "%1"=="-b" GOTO SPECIFIC
IF NOT "%1"=="-b" GOTO UNKNOWN
I like Evgeny's K&R answer. However, it is nice to see a version using pointers. Otherwise, it's essentially the same:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
char *reverse(char *str) {
if( str == NULL || !(*str) ) return NULL;
int i, j = strlen(str)-1;
char *sallocd;
sallocd = malloc(sizeof(char) * (j+1));
for(i=0; j>=0; i++, j--) {
*(sallocd+i) = *(str+j);
}
return sallocd;
}
int main(void) {
char *s = "a man a plan a canal panama";
char *sret = reverse(s);
printf("%s\n", reverse(sret));
free(sret);
return 0;
}
You can use find
find . -type d > output.txt
or tree
tree -d > output.txt
tree
, If not installed on your system.
If you are using ubuntu
sudo apt-get install tree
If you are using mac os
.
brew install tree
This is quite handy to use:
var myRedirect = function(redirectUrl, arg, value) {
var form = $('<form action="' + redirectUrl + '" method="post">' +
'<input type="hidden" name="'+ arg +'" value="' + value + '"></input>' + '</form>');
$('body').append(form);
$(form).submit();
};
then use it like:
myRedirect("/yourRedirectingUrl", "arg", "argValue");
If you are using Underscore.js or Lodash, there is a function 'omit' that will do it.
http://underscorejs.org/#omit
var thisIsObject= {
'Cow' : 'Moo',
'Cat' : 'Meow',
'Dog' : 'Bark'
};
_.omit(thisIsObject,'Cow'); //It will return a new object
=> {'Cat' : 'Meow', 'Dog' : 'Bark'} //result
If you want to modify the current object, assign the returning object to the current object.
thisIsObject = _.omit(thisIsObject,'Cow');
With pure JavaScript, use:
delete thisIsObject['Cow'];
Another option with pure JavaScript.
thisIsObject.cow = undefined;
thisIsObject = JSON.parse(JSON.stringify(thisIsObject ));
Using wamp do the following and hopefully, it will resolve an issue
Make these changes in PHP Options to correct:
max_execution_time 180
memory_limit 512M or your highest available
post_max_size 32M
upload_max_filesize 64M
Regexp work on the character base, and \d
means a single digit 0
...9
and not a decimal number.
A regular expression that matches only integers with a sign could be for example
^[-+]?[0-9]+$
meaning
^
- start of string[-+]?
- an optional (this is what ?
means) minus or plus sign[0-9]+
- one or more digits (the plus means "one or more" and [0-9]
is another way to say \d
)$
- end of stringNote: having the sign considered part of the number is ok only if you need to parse just the number. For more general parsers handling expressions it's better to leave the sign out of the number: source streams like 3-2
could otherwise end up being parsed as a sequence of two integers instead of an integer, an operator and another integer. My experience is that negative numbers are better handled by constant folding of the unary negation operator at an higher level.
If you need a one-liner (i.e. for Jasper Reports formula) and don't mind if the adjustment is not exactly one month (i.e "30 days" is enough):
new Date($F{invoicedate}.getTime() + 30L * 24L * 60L * 60L * 1000L)
I had the same problem as you do and I could solve it by following @CarlosRojas instructions with a little difference. Instead of create a new firewall rule I edited the default-allow-internal
one to accept traffic from anywhere since creating new rules didn't make any difference.
No, it's not possible. Not without the export
keyword, which for all intents and purposes doesn't really exist.
The best you can do is put your function implementations in a ".tcc" or ".tpp" file, and #include the .tcc file at the end of your .hpp file. However this is merely cosmetic; it's still the same as implementing everything in header files. This is simply the price you pay for using templates.
I would suggest editing the /etc/default/jenkins
vi /etc/default/jenkins
And changing the $JENKINS_HOME variable (around line 23) to
JENKINS_HOME=/home/jenkins
Then restart the Jenkins with usual
/etc/init.d/jenkins start
Cheers!
simple way to find the same is
$date = date("Y-m-d", strtotime('-5 days', strtotime('input_date')));
<!-- change id attribute to name -->
<form method="post" action="yourUrl" name="theForm">
<button onclick="placeOrder()">Place Order</button>
</form>
function placeOrder () {
document.theForm.submit()
}
Type related errors can be avoided by imposing a schema as follows:
note: a text file was created (test.csv) with the original data (as above) and hypothetical column names were inserted ("col1","col2",...,"col25").
import pyspark
from pyspark.sql import SparkSession
import pandas as pd
spark = SparkSession.builder.appName('pandasToSparkDF').getOrCreate()
pdDF = pd.read_csv("test.csv")
contents of the pandas data frame:
col1 col2 col3 col4 col5 col6 col7 col8 ...
0 10000001 1 0 1 12:35 OK 10002 1 ...
1 10000001 2 0 1 12:36 OK 10002 1 ...
2 10000002 1 0 4 12:19 PA 10003 1 ...
Next, create the schema:
from pyspark.sql.types import *
mySchema = StructType([ StructField("col1", LongType(), True)\
,StructField("col2", IntegerType(), True)\
,StructField("col3", IntegerType(), True)\
,StructField("col4", IntegerType(), True)\
,StructField("col5", StringType(), True)\
,StructField("col6", StringType(), True)\
,StructField("col7", IntegerType(), True)\
,StructField("col8", IntegerType(), True)\
,StructField("col9", IntegerType(), True)\
,StructField("col10", IntegerType(), True)\
,StructField("col11", StringType(), True)\
,StructField("col12", StringType(), True)\
,StructField("col13", IntegerType(), True)\
,StructField("col14", IntegerType(), True)\
,StructField("col15", IntegerType(), True)\
,StructField("col16", IntegerType(), True)\
,StructField("col17", IntegerType(), True)\
,StructField("col18", IntegerType(), True)\
,StructField("col19", IntegerType(), True)\
,StructField("col20", IntegerType(), True)\
,StructField("col21", IntegerType(), True)\
,StructField("col22", IntegerType(), True)\
,StructField("col23", IntegerType(), True)\
,StructField("col24", IntegerType(), True)\
,StructField("col25", IntegerType(), True)])
Note: True
(implies nullable allowed)
create the pyspark dataframe:
df = spark.createDataFrame(pdDF,schema=mySchema)
confirm the pandas data frame is now a pyspark data frame:
type(df)
output:
pyspark.sql.dataframe.DataFrame
Aside:
To address Kate's comment below - to impose a general (String) schema you can do the following:
df=spark.createDataFrame(pdDF.astype(str))
I had a similar problem which was caused by a simple mistake in CSS comments.
I had written a comment using the JavaScript // way instead of /* */ which made the subsequent css-class to break but all other CSS work as expected.
As your query string is a literal, and assuming your dates are properly stored as DATE
you should use date literals:
SELECT * FROM OrderArchive
WHERE OrderDate <= DATE '2015-12-31'
If you want to use TO_DATE
(because, for example, your query value is not a literal), I suggest you to explicitly set the NLS_DATE_LANGUAGE parameter as you are using US abbreviated month names. That way, it won't break on some localized Oracle Installation:
SELECT * FROM OrderArchive
WHERE OrderDate <= to_date('31 Dec 2014', 'DD MON YYYY',
'NLS_DATE_LANGUAGE = American');
Download openssl for windows from https://code.google.com/archive/p/openssl-for-windows/downloads
Set Environment variable to the path variable as path="C:\your_folder\openssl-0.9.8k_X64\bin"
To view entries in Drupal's own internal log system (the watchdog
database table), go to http://example.com/admin/reports/dblog. These can include Drupal-specific errors as well as general PHP or MySQL errors that have been thrown.
Use the watchdog()
function to add an entry to this log from your own custom module.
When Drupal bootstraps it uses the PHP function set_error_handler()
to set its own error handler for PHP errors. Therefore, whenever a PHP error occurs within Drupal it will be logged through the watchdog()
call at admin/reports/dblog
. If you look for PHP fatal errors, for example, in /var/log/apache/error.log
and don't see them, this is why. Other errors, e.g. Apache errors, should still be logged in /var/log
, or wherever you have it configured to log to.
Having a large Answer table, in and of itself, is not a problem. As long as the indexes and constraints are well defined you should be fine. Your second schema looks good to me.
I use the file *nix command to convert a unknown charset file in a utf-8 file
# -*- encoding: utf-8 -*-
# converting a unknown formatting file in utf-8
import codecs
import commands
file_location = "jumper.sub"
file_encoding = commands.getoutput('file -b --mime-encoding %s' % file_location)
file_stream = codecs.open(file_location, 'r', file_encoding)
file_output = codecs.open(file_location+"b", 'w', 'utf-8')
for l in file_stream:
file_output.write(l)
file_stream.close()
file_output.close()
It all depends what type of tag you want to create:
git tag -a v1.0.0
.git tag v1.0.0
.There are a few other tag functionalities such as:
git tag -l -n3
. The command lists all existing tags with maximum 3 lines of their tag message. By default -n only shows the first line.git show <tag_identifier>
. It shows all you need to know about a specific tag.git tag --sort=<type>
git push origin v1.0
. You can git push the tag individually, or you can run git push --tags which will push all tags at once. Be sure to check this tag related article for more relevant information.
I've tried Greg's answer with zero success, I must have done something wrong since my database had no data after all the steps: I was using MariaDB's latest image, just in case.
Then I decided to read the entrypoint for the official MariaDB image, and used that to generate a simple docker-compose file:
database:
image: mariadb
ports:
- 3306:3306
expose:
- 3306
volumes:
- ./docker/mariadb/data:/var/lib/mysql:rw
- ./database/schema.sql:/docker-entrypoint-initdb.d/schema.sql:ro
environment:
MYSQL_ALLOW_EMPTY_PASSWORD: "yes"
Now I'm able to persist my data AND generate a database with my own schema!
I've found that there are some files that may affect the $PATH
variable in macOS (works for me, 10.11 El Capitan), listed below:
As the top voted answer said, vi /etc/paths
, which is recommended from my point of view.
Also don't forget the /etc/paths.d
directory, which contains files may affect the $PATH
variable, set the git
and mono-command
path in my case. You can ls -l /etc/paths.d
to list items and rm /etc/paths.d/path_you_dislike
to remove items.
If you're using a "bash" environment (the default Terminal.app
, for example), you should check out ~/.bash_profile
or ~/.bashrc
. There may be not that file yet, but these two files have effects on the $PATH
.
If you're using a "zsh" environment (Oh-My-Zsh, for example), you should check out ~./zshrc
instead of ~/.bash*
thing.
And don't forget to restart all the terminal windows, then echo $PATH
. The $PATH
string will be PATH_SET_IN_3&4:PATH_SET_IN_1:PATH_SET_IN_2
.
Noticed that the first two ways (/etc/paths
and /etc/path.d
) is in /
directory which will affect all the accounts in your computer while the last two ways (~/.bash*
or ~/.zsh*
) is in ~/
directory (aka, /Users/yourusername/
) which will only affect your account settings.
Before your write to Excel need to change the format:
xlApp = New Excel.Application
xlWorkSheet = xlWorkBook.Sheets("Sheet1")
Dim cells As Excel.Range = xlWorkSheet.Cells
'set each cell's format to Text
cells.NumberFormat = "@"
'reset horizontal alignment to the right
cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignRight
I recently stumbled across this blogpost: Python Source Obfuscation using ASTs where the author talks about python source file obfuscation using the builtin AST module. The compiled binary was to be used for the HitB CTF and as such had strict obfuscation requirements.
Since you gain access to individual AST nodes, using this approach allows you to perform arbitrary modifications to the source file. Depending on what transformations you carry out, resulting binary might/might not behave exactly as the non-obfuscated source.
You can achieve it by using following code,
@Query(value = "SELECT * FROM users u WHERE ORDER BY ?#{#pageable}", nativeQuery = true)
List<User> getUsers(String name, Pageable pageable);
Simply use ORDER BY ?#{#pageable} and pass page request to your method.
Enjoy!
This is because of a higher JDK during compile time and lower JDK during runtime. So you just need to update your JDK version, possible to JDK 7
You may also check Unsupported major.minor version 51.0
First ask yourself how you would ever expect this code to NOT return an integer:
int num;
scanf("%d",&num);
You specified the variable as type integer, then you scanf
, but only for an integer (%d
).
What else could it possibly contain at this point?
It is also available in general settings
Settings -> Security -> Verify Apps
Just un-check it.
( I am running 4.2.2 but most probably it should be available in 4.0 and higher. Cant say about previous versions ... )
Took me a while to read through the above. This was the answer for me:
import seaborn as sns
import matplotlib.pyplot as plt
tips = sns.load_dataset("tips")
g = sns.lmplot(
x="total_bill",
y="tip",
hue="smoker",
data=tips,
legend=False
)
plt.legend(title='Smoker', loc='upper left', labels=['Hell Yeh', 'Nah Bruh'])
plt.show(g)
Reference this for more arguments: matplotlib.pyplot.legend
Click Developer Tools to inspect element. You may also use keyboard shortcuts, such as CtrlL+Shift+I, F12 (or Fn+F12), etc.
The endpoint of the term is the URL that is focused on creating a request. Take a look at the following examples from different points:
/api/groups/6/workings/1
/api/v2/groups/5/workings/2
/api/workings/3
They can clearly access the same source in a given API.
Android will not update support libraries after 28.0.0
.
This will be the last feature release under the android.support packaging, and developers are encouraged to migrate to AndroidX 1.0.0.
So use library AndroidX.
androidx
or any library, because alpha, beta, rc can have bugs which you dont want to ship with your app.In your case
dependencies {
implementation 'androidx.appcompat:appcompat:1.0.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.1'
implementation 'com.google.android.material:material:1.0.0'
implementation 'androidx.cardview:cardview:1.0.0'
}
A ListView is a specialized ListBox (that is, it inherits from ListBox). It allows you to specify different views rather than a straight list. You can either roll your own view, or use GridView (think explorer-like "details view"). It's basically the multi-column listbox, the cousin of windows form's listview.
If you don't need the additional capabilities of ListView, you can certainly use ListBox if you're simply showing a list of items (Even if the template is complex).
May not sound very elegant, but I usually do something like this:
var items = repository.func.ToList();
items.Insert(0, new funcItem { ID = 0, TextValue = "[None]" });
ViewBag.MyData = new SelectList(items);
Updated answer for 2019.
Regex object is thread-safe for Matching functions. Knowing that and there are some performance options or cultural / language issues, I propose this simple solution.
public static Regex _regex = new Regex(
@"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$",
RegexOptions.CultureInvariant | RegexOptions.Singleline);
public static bool IsValidEmailFormat(string emailInput)
{
return _regex.IsMatch(emailInput);
}
Alternative Configuration for Regex:
public static Regex _regex = new Regex(
@"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$",
RegexOptions.CultureInvariant | RegexOptions.Compiled);
I find that compiled is only faster on big string matches, like book parsing for example. Simple email matching is faster just letting Regex interpret.
You don't tend to execute the make file itself, rather you execute make
, giving it the make file as an argument:
make -f pax.mk
If your make file is actually one of the standard names (like makefile
or Makefile
), you don't even need to specify it. It'll be picked up by default (if you have more than one of these standard names in your build directory, you better look up the make
man page to see which takes precedence).
you need to execute two queries:
One - to add the default value to the column required
ALTER TABLE 'Table_Name` ADD DEFAULT 'value' FOR 'Column_Name'
i want add default value to Column IsDeleted as below:
Example: ALTER TABLE [dbo].[Employees] ADD Default 0 for IsDeleted
Two - to alter the column value nullable to not null
ALTER TABLE 'table_name' ALTER COLUMN 'column_name' 'data_type' NOT NULL
i want to make the column IsDeleted as not null
ALTER TABLE [dbo].[Employees] Alter Column IsDeleted BIT NOT NULL
I always just use NOW():
INSERT INTO table (lastModifiedTime) VALUES (NOW())
http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html#function_now
maybe you forget to add parameter dataType:'json' in your $.ajax
$.ajax({
type: "POST",
dataType: "json",
url: url,
data: { get_member: id },
success: function( response )
{
//some action here
},
error: function( error )
{
alert( error );
}
});
You can keep your work stashed away, without commiting it, with git stash
. You
would than use git stash pop
to get it back. Or you can (as carleeto said) git commit
it to a separate branch.
You can checkout a commit by a specific date using rev-parse
like this:
git checkout 'master@{1979-02-26 18:30:00}'
More details on the available options can be found in the git-rev-parse
.
As noted in the comments this method uses the reflog to find the commit in your history. By default these entries expire after 90 days. Although the syntax for using the reflog is less verbose you can only go back 90 days.
The other option, which doesn't use the reflog, is to use rev-list
to get the commit at a particular point in time with:
git checkout `git rev-list -n 1 --first-parent --before="2009-07-27 13:37" master`
Note the --first-parent if you want only your history and not versions brought in by a merge. That's what you usually want.
You can put two figures inside one figure environment. For example:
\begin{figure}[p]
\centering
\includegraphics{fig1}
\caption{Caption 1}
\includegraphics{fig2}
\caption{Caption 2}
\end{figure}
Each caption will generate a separate figure number.
I guess your code relates to Windows Forms.
You call BeginInvoke
if you need something to be executed asynchronously in the UI thread: change control's properties in most of the cases.
Roughly speaking this is accomplished be passing the delegate to some procedure which is being periodically executed. (message loop processing and the stuff like that)
If BeginInvoke
is called for Delegate
type the delegate is just invoked asynchronously.
(Invoke
for the sync version.)
If you want more universal code which works perfectly for WPF and WinForms you can consider Task Parallel Library and running the Task
with the according context. (TaskScheduler.FromCurrentSynchronizationContext()
)
And to add a little to already said by others:
Lambdas can be treated either as anonymous methods or expressions.
And that is why you cannot just use var
with lambdas: compiler needs a hint.
UPDATE:
this requires .Net v4.0 and higher
// This line must be called in UI thread to get correct scheduler
var scheduler = System.Threading.Tasks.TaskScheduler.FromCurrentSynchronizationContext();
// this can be called anywhere
var task = new System.Threading.Tasks.Task( () => someformobj.listBox1.SelectedIndex = 0);
// also can be called anywhere. Task will be scheduled for execution.
// And *IF I'm not mistaken* can be (or even will be executed synchronously)
// if this call is made from GUI thread. (to be checked)
task.Start(scheduler);
If you started the task from other thread and need to wait for its completition task.Wait()
will block calling thread till the end of the task.
Read more about tasks here.
To enable CORS, 1.Go to App_Start folder. 2.add the namespace 'using System.Web.Http.Cors'; 3.Open the WebApiConfig.cs file and type the following in a static method.
config.EnableCors(new EnableCorsAttribute("https://localhost:44328",headers:"*", methods:"*"));
_x000D_
You can write a for loop for this... %)
for x in *
do
if [ "$x" != "exclude_criteria" ]
then
rm -f $x;
fi
done;
This would be a clean, readable and reusable solution using grep
and echo
to add a line to a file only if it doesn't already exist:
LINE='include "/configs/projectname.conf"'
FILE='lighttpd.conf'
grep -qF -- "$LINE" "$FILE" || echo "$LINE" >> "$FILE"
If you need to match the whole line use grep -xqF
Add -s
to ignore errors when the file does not exist, creating a new file with just that line.
when we call ASCII as 7 bit code, the left most bit is used as sign bit so with 7 bits we can write up to 127. that means from -126 to 127 because Max imam value of ASCII is 0 to 255. this can be only satisfied with the argument of 7 bit if last bit is considered as sign bit
Whoa. You're really over-complicating it by a very long distance. Try:
>>> print hex(0x12ef ^ 0xabcd)
0xb922
You seem to be ignoring these handy facts, at least:
0x
prefix.hex()
function can be used to convert any number into a hexadecimal string for display.If you already have the numbers as strings, you can use the int()
function to convert to numbers, by providing the expected base (16 for hexadecimal numbers):
>>> print int("12ef", 16)
4874
So you can do two conversions, perform the XOR, and then convert back to hex:
>>> print hex(int("12ef", 16) ^ int("abcd", 16))
0xb922
You can nest your queries:
select * from (
select bla
from bla
where bla
order by finaldate desc
)
where rownum < 2
tl;dr my opinion is to use a unary +
to trigger the unboxing on one of the operands when checking for value equality, and simply use the maths operators otherwise. Rationale follows:
It has been mentioned already that ==
comparison for Integer
is identity comparison, which is usually not what a programmer want, and that the aim is to do value comparison; still, I've done a little science about how to do that comparison most efficiently, both in term of code compactness, correctness and speed.
I used the usual bunch of methods:
public boolean method1() {
Integer i1 = 7, i2 = 5;
return i1.equals( i2 );
}
public boolean method2() {
Integer i1 = 7, i2 = 5;
return i1.intValue() == i2.intValue();
}
public boolean method3() {
Integer i1 = 7, i2 = 5;
return i1.intValue() == i2;
}
public boolean method4() {
Integer i1 = 7, i2 = 5;
return i1 == +i2;
}
public boolean method5() { // obviously not what we want..
Integer i1 = 7, i2 = 5;
return i1 == i2;
}
and got this code after compilation and decompilation:
public boolean method1() {
Integer var1 = Integer.valueOf( 7 );
Integer var2 = Integer.valueOf( 5 );
return var1.equals( var2 );
}
public boolean method2() {
Integer var1 = Integer.valueOf( 7 );
Integer var2 = Integer.valueOf( 5 );
if ( var2.intValue() == var1.intValue() ) {
return true;
} else {
return false;
}
}
public boolean method3() {
Integer var1 = Integer.valueOf( 7 );
Integer var2 = Integer.valueOf( 5 );
if ( var2.intValue() == var1.intValue() ) {
return true;
} else {
return false;
}
}
public boolean method4() {
Integer var1 = Integer.valueOf( 7 );
Integer var2 = Integer.valueOf( 5 );
if ( var2.intValue() == var1.intValue() ) {
return true;
} else {
return false;
}
}
public boolean method5() {
Integer var1 = Integer.valueOf( 7 );
Integer var2 = Integer.valueOf( 5 );
if ( var2 == var1 ) {
return true;
} else {
return false;
}
}
As you can easily see, method 1 calls Integer.equals()
(obviously), methods 2-4 result in exactly the same code, unwrapping the values by means of .intValue()
and then comparing them directly, and method 5 just triggers an identity comparison, being the incorrect way to compare values.
Since (as already mentioned by e.g. JS) equals()
incurs an overhead (it has to do instanceof
and an unchecked cast), methods 2-4 will work with exactly the same speed, noticingly better than method 1 when used in tight loops, since HotSpot is not likely to optimize out the casts & instanceof
.
It's quite similar with other comparison operators (e.g. <
/>
) - they will trigger unboxing, while using compareTo()
won't - but this time, the operation is highly optimizable by HS since intValue()
is just a getter method (prime candidate to being optimized out).
In my opinion, the seldom used version 4 is the most concise way - every seasoned C/Java developer knows that unary plus is in most cases equal to cast to int
/.intValue()
- while it may be a little WTF moment for some (mostly those who didn't use unary plus in their lifetime), it arguably shows the intent most clearly and most tersely - it shows that we want an int
value of one of the operands, forcing the other value to unbox as well. It is also unarguably most similar to the regular i1 == i2
comparison used for primitive int
values.
My vote goes for i1 == +i2
& i1 > i2
style for Integer
objects, both for performance & consistency reasons. It also makes the code portable to primitives without changing anything other than the type declaration. Using named methods seems like introducing semantic noise to me, similar to the much-criticized bigInt.add(10).multiply(-3)
style.
Some times intermediates creates problem so delete it and Rebuild project
OR
simply run cmd command - > gradlew clean
in your project folder in work space (its work for me)
XPath queries are case sensitive. Having looked at your example (which, by the way, is awesome, nobody seems to provide examples anymore!), I can get the result you want just by changing "business", to "Business"
//production[not(contains(category,'Business'))]
I have tested this by opening the XML file in Chrome, and using the Developer tools to execute that XPath queries, and it gave me just the Film category back.
In Java, this return value fails with jQuery Ajax GET:
return Response.status(200).entity(pojoObj).build();
But this works:
ResponseBuilder rb = Response.status(200).entity(pojoObj);
return rb.header("Access-Control-Allow-Origin", "*").build();
----
Full class:
@Path("/password")
public class PasswordStorage {
@GET
@Produces({ MediaType.APPLICATION_JSON })
public Response getRole() {
Contact pojoObj= new Contact();
pojoObj.setRole("manager");
ResponseBuilder rb = Response.status(200).entity(pojoObj);
return rb.header("Access-Control-Allow-Origin", "*").build();
//Fails jQuery: return Response.status(200).entity(pojoObj).build();
}
}
This one disables all bogus verbs and only allows GET and POST
<system.webServer>
<security>
<requestFiltering>
<verbs allowUnlisted="false">
<clear/>
<add verb="GET" allowed="true"/>
<add verb="POST" allowed="true"/>
</verbs>
</requestFiltering>
</security>
</system.webServer>
You're looking for Path.GetFileName
.
Note that this won't work if the path ends in a \
.
Just in case that the remote file needs your credential to get accessed, you can generate a System.Net.WebClient object using cmdlet New-Object to "Copy File Remotely", like so
$Source = "\\192.168.x.x\somefile.txt"
$Dest = "C:\Users\user\somefile.txt"
$Username = "username"
$Password = "password"
$WebClient = New-Object System.Net.WebClient
$WebClient.Credentials = New-Object System.Net.NetworkCredential($Username, $Password)
$WebClient.DownloadFile($Source, $Dest)
Or if you need to upload a file, you can use UploadFile:
$Dest = "\\192.168.x.x\somefile.txt"
$Source = "C:\Users\user\somefile.txt"
$WebClient.UploadFile($Dest, $Source)
The problem is that PhpMyAdmin control user (usually: pma) password does not match the mysql user: pma (same user) password.
To fix it, 1. Set the password you want for user pma here:
"C:\xampp\phpMyAdmin\config.inc.php"
$cfg['Servers'][$i]['controlpass'] = 'your_new_phpmyadmin_pass';
(should be like on line 32)
Then go to mysql, login as root, go to: (I used phpmyadmin to go here)
Database: mysql »Table: user
Edit the user: pma
Select "Password" from the function list (left column) and set "your_new_phpmyadmin_pass" on the right column and hit go.
Restart mysql server.
Now the message should disappear.
'self.webView.scrollView.bounces = NO;'
Just add this one line in the 'viewDidLoad' of the mainViewController.m file of your application. you can open it in the Xcode and add it .
This should make the page without any rubberband bounces still enabling the scroll in the app view.
Cross-site cookies are allowed if:
Set-Cookie
response header includes SameSite=None; Secure
as seen here and hereLet's clarify a "domain" vs a "site"; I always find a quick reminder of "anatomy of a URL" helps me. In this URL https://example.com:8888/examples/index.html
, remember these main parts (got from this paper):
https://
example.com
8888
/examples/index.html
.Notice the difference between "path" and "site" for Cookie purposes. "path" is not security-related; "site" is security-related:
path
Servers can set a Path
attribute in the Set-Cookie
, but it doesn't seem security related:
Note that
path
was intended for performance, not security. Web pages having the same origin still can access cookie viadocument.cookie
even though the paths are mismatched.
site
The SameSite attribute, according to web.dev article, can restrict or allow cross-site cookies; but what is a "site"?
It's helpful to understand exactly what 'site' means here. The site is the combination of the domain suffix and the part of the domain just before it. For example, the
www.web.dev
domain is part of theweb.dev
site.
This means what's to the left of web.dev
is a subdomain; yep, www
is the subdomain (but the subdomain is a part of the host; see the BONUS reply in this answer)
In this URL https://www.example.com:8888/examples/index.html
, remember these parts:
https://
example.com
8888
www.example.com
example.com
www
/examples/index.html
Useful links:
(Be careful; I was testing my feature in Chrome Incognito tab; according to my chrome://settings/cookies
; my settings were "Block third party cookies in Incognito", so I can't test Cross-site cookies in Incognito.)
Yet another implementation using awk
with a little more flexibility.
function parse_ini() {
cat /dev/stdin | awk -v section="$1" -v key="$2" '
BEGIN {
if (length(key) > 0) { params=2 }
else if (length(section) > 0) { params=1 }
else { params=0 }
}
match($0,/#/) { next }
match($0,/^\[(.+)\]$/){
current=substr($0, RSTART+1, RLENGTH-2)
found=current==section
if (params==0) { print current }
}
match($0,/(.+)=(.+)/) {
if (found) {
if (params==2 && key==$1) { print $3 }
if (params==1) { printf "%s=%s\n",$1,$3 }
}
}'
}
You can use calling passing between 0 and 2 params:
cat myfile1.ini myfile2.ini | parse_ini # List section names
cat myfile1.ini myfile2.ini | parse_ini 'my-section' # Prints keys and values from a section
cat myfile1.ini myfile2.ini | parse_ini 'my-section' 'my-key' # Print a single value
just if someone else is still struggeling with this problem, you may consider using
marshaller.setProperty(Marshaller.JAXB_FRAGMENT, Boolean.TRUE);
to remove all of the XML declaration and just write your own String
at the beginning of your output stream / method
you have to git add css/mobile.css
the new file and git rm css/iphone.css
, so git knows about it. then it will show the same output in git status
you can see it clearly in the status output (the new name of the file):
# Untracked files:
# (use "git add <file>..." to include in what will be committed)
and (the old name):
# Changed but not updated:
# (use "git add/rm <file>..." to update what will be committed)
i think behind the scenes git mv
is nothing more than a wrapper script which does exactly that: delete the file from the index and add it under a different name
Yep, that code is completely redundant and unnecessary and it doesn't make the garbage collector do anything it wouldn't otherwise do (once an instance of MyCollection goes out of scope, that is.) Especially the .Clear()
calls.
Answer to your edit: Sort of. If I do this:
public void WasteMemory()
{
var instance = new MyCollection(); // this one has no Dispose() method
instance.FillItWithAMillionStrings();
}
// 1 million strings are in memory, but marked for reclamation by the GC
It's functionally identical to this for purposes of memory management:
public void WasteMemory()
{
var instance = new MyCollection(); // this one has your Dispose()
instance.FillItWithAMillionStrings();
instance.Dispose();
}
// 1 million strings are in memory, but marked for reclamation by the GC
If you really really really need to free the memory this very instant, call GC.Collect()
. There's no reason to do this here, though. The memory will be freed when it's needed.
Don't make data frames. Keep the list, name its elements but do not attach it.
The biggest reason for this is that if you make variables on the go, almost always you will later on have to iterate through each one of them to perform something useful. There you will again be forced to iterate through each one of the names that you have created on the fly.
It is far easier to name the elements of the list and iterate through the names.
As far as attach is concerned, its really bad programming practice in R and can lead to a lot of trouble if you are not careful.
vickramds's comment above, referring to http://torulflundgren.blogspot.com.au/2010/03/cannot-obtain-value-of-local-or.html , did it for me. I checked everything - deleted all the dll, pdb files from local bin folders, Clean, Rebuild, cleared all folders of Temporary ASP.NET Files, ensured TRACE/DEBUG flags were set, checked the DLL paths, etc.
To put it down so it isn't lost, for the affected project(s):
Project Properties --> Build --> Advanced --> Debug Info: Full.
You want to check that you have the Debug configuration selected before you do this, unless of course, you intended otherwise.
Essentially equivalent to the xargs answer, but in case you want parallel execution:
parallel -q cp file1 ::: /foo/ /bar/
So, for example, to copy file1 into all subdirectories of current folder (including recursion):
parallel -q cp file1 ::: `find -mindepth 1 -type d`
N.B.: This probably only conveys any noticeable speed gains for very specific use cases, e.g. if each target directory is a distinct disk.
It is also functionally similar to the '-P' argument for xargs.
Websockets and SSE (Server Sent Events) are both capable of pushing data to browsers, however they are not competing technologies.
Websockets connections can both send data to the browser and receive data from the browser. A good example of an application that could use websockets is a chat application.
SSE connections can only push data to the browser. Online stock quotes, or twitters updating timeline or feed are good examples of an application that could benefit from SSE.
In practice since everything that can be done with SSE can also be done with Websockets, Websockets is getting a lot more attention and love, and many more browsers support Websockets than SSE.
However, it can be overkill for some types of application, and the backend could be easier to implement with a protocol such as SSE.
Furthermore SSE can be polyfilled into older browsers that do not support it natively using just JavaScript. Some implementations of SSE polyfills can be found on the Modernizr github page.
Gotchas:
www.example1.com
and another 6 SSE connections to www.example2.com
(thanks Phate).HTML5Rocks has some good information on SSE. From that page:
Server-Sent Events vs. WebSockets
Why would you choose Server-Sent Events over WebSockets? Good question.
One reason SSEs have been kept in the shadow is because later APIs like WebSockets provide a richer protocol to perform bi-directional, full-duplex communication. Having a two-way channel is more attractive for things like games, messaging apps, and for cases where you need near real-time updates in both directions. However, in some scenarios data doesn't need to be sent from the client. You simply need updates from some server action. A few examples would be friends' status updates, stock tickers, news feeds, or other automated data push mechanisms (e.g. updating a client-side Web SQL Database or IndexedDB object store). If you'll need to send data to a server, XMLHttpRequest is always a friend.
SSEs are sent over traditional HTTP. That means they do not require a special protocol or server implementation to get working. WebSockets on the other hand, require full-duplex connections and new Web Socket servers to handle the protocol. In addition, Server-Sent Events have a variety of features that WebSockets lack by design such as automatic reconnection, event IDs, and the ability to send arbitrary events.
Advantages of SSE over Websockets:
Advantages of Websockets over SSE:
Ideal use cases of SSE:
SSE gotchas:
The dictionary:
d={'key1':'value1','key2':'value2','key3':'value3'}
Another one line solution:
print(*d.items(), sep='\n')
Output:
('key1', 'value1')
('key2', 'value2')
('key3', 'value3')
(but, since no one has suggested something like this before, I suspect it is not good practice)
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.commons.io.IOUtils;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.web.multipart.MultipartFile;
public static void main(String[] args) {
convertFiletoMultiPart();
}
private static void convertFiletoMultiPart() {
try {
File file = new File(FILE_PATH);
if (file.exists()) {
System.out.println("File Exist => " + file.getName() + " :: " + file.getAbsolutePath());
}
FileInputStream input = new FileInputStream(file);
MultipartFile multipartFile = new MockMultipartFile("file", file.getName(), "text/plain",
IOUtils.toByteArray(input));
System.out.println("multipartFile => " + multipartFile.isEmpty() + " :: "
+ multipartFile.getOriginalFilename() + " :: " + multipartFile.getName() + " :: "
+ multipartFile.getSize() + " :: " + multipartFile.getBytes());
} catch (IOException e) {
System.out.println("Exception => " + e.getLocalizedMessage());
}
}
This worked for me.
There's an important thing that people always seem to overlook:
You can pass a plain array to something which accepts an IList<T>
parameter, and then you can call IList.Add()
and will receive a runtime exception:
Unhandled Exception: System.NotSupportedException: Collection was of a fixed size.
For example, consider the following code:
private void test(IList<int> list)
{
list.Add(1);
}
If you call that as follows, you will get a runtime exception:
int[] array = new int[0];
test(array);
This happens because using plain arrays with IList<T>
violates the Liskov substitution principle.
For this reason, if you are calling IList<T>.Add()
you may want to consider requiring a List<T>
instead of an IList<T>
.
this is an example that prevent the user from typing the character "a"
$(function() {
$('input:text').keydown(function(e) {
if(e.keyCode==65)
return false;
});
});
key codes refrence here:
http://www.expandinghead.net/keycode.html
If you're looking for an integral result, you can just determine the highest bit set in the value and return its position.
You should be able to accomplish this by using the statement $ErrorActionPreference = "Stop"
at the beginning of your scripts.
The default setting of $ErrorActionPreference
is Continue
, which is why you are seeing your scripts keep going after errors occur.
Could have easily done using an extra level of Div.
<div style="background-color: blue; padding: 10px; position: relative; height: 100px;">
<div style="position: absolute; left: 0px; right: 0px; bottom: 10px; padding:0px 10px;">
<div style="background-color: gray;">css sux</div>
</div>
</div>
Rda is just a short name for RData. You can just save(), load(), attach(), etc. just like you do with RData.
Rds stores a single R object. Yet, beyond that simple explanation, there are several differences from a "standard" storage. Probably this R-manual Link to readRDS() function clarifies such distinctions sufficiently.
So, answering your questions:
When SET QUOTED_IDENTIFIER is OFF, literal strings in expressions can be delimited by single or double quotation marks.
If a literal string is delimited by double quotation marks, the string can contain embedded single quotation marks, such as apostrophes.
You can redirect stdout to nul
to hide it.
COPY %scriptDirectory%test.bat %scriptDirectory%test2.bat >nul
Just add >nul
to the commands you want to hide the output from.
Here you can see all the different ways of redirecting the std streams.
In fact, it's a very old thread but useful...
When namespace declaration is part of your php class file "this kind of weird errors tends to appear".
Solution: Use namespace
with {
, your code shows like this:
<?php
namespace path_to\lib {
require_once "folder/php_class_file_where_namespace_declaration_is_part_of_it.php";
**YOUR CODE HERE**
<?php } ?>
You can use eval(jsonString) if you trust the data in the string, otherwise you'll need to parse it properly - check json.org for some code samples.
You separate the values you want to return by commas:
def get_name():
# you code
return first_name, last_name
The commas indicate it's a tuple, so you could wrap your values by parentheses:
return (first_name, last_name)
Then when you call the function you a) save all values to one variable as a tuple, or b) separate your variable names by commas
name = get_name() # this is a tuple
first_name, last_name = get_name()
(first_name, last_name) = get_name() # You can put parentheses, but I find it ugly
Update your connection string as shown below (without port
variable as well):
MysqlConn.ConnectionString = "Server=127.0.0.1;Database=patholabs;Uid=pankaj;Pwd=master;"
Hope this helps...
Try to browse the service in the browser and in the Https mode, if it is not brow-sable then it proves the reason for this error. Now, to solve this error you need to check :
At first I thought this was a coercion bug where null
was getting coerced to "null"
and a test of "null" == null
was passing. It's not. I was close, but so very, very wrong. Sorry about that!
I've since done lots of fiddling on wonderfl.net and tracing through the code in mx.rpc.xml.*
. At line 1795 of XMLEncoder
(in the 3.5 source), in setValue
, all of the XMLEncoding boils down to
currentChild.appendChild(xmlSpecialCharsFilter(Object(value)));
which is essentially the same as:
currentChild.appendChild("null");
This code, according to my original fiddle, returns an empty XML element. But why?
According to commenter Justin Mclean on bug report FLEX-33664, the following is the culprit (see last two tests in my fiddle which verify this):
var thisIsNotNull:XML = <root>null</root>;
if(thisIsNotNull == null){
// always branches here, as (thisIsNotNull == null) strangely returns true
// despite the fact that thisIsNotNull is a valid instance of type XML
}
When currentChild.appendChild
is passed the string "null"
, it first converts it to a root XML element with text null
, and then tests that element against the null literal. This is a weak equality test, so either the XML containing null is coerced to the null type, or the null type is coerced to a root xml element containing the string "null", and the test passes where it arguably should fail. One fix might be to always use strict equality tests when checking XML (or anything, really) for "nullness."
CDATA values are the most appropriate way to mutate an entire text value that would otherwise cause encoding/decoding problems. Hex encoding, for instance, is meant for individual characters. CDATA values are preferred when you're escaping the entire text of an element. The biggest reason for this is that it maintains human readability.
Your problem is basically that you never specified the right path to the file.
Try instead, from your main script:
from folder.file import Klasa
Or, with from folder import file
:
from folder import file
k = file.Klasa()
Or again:
import folder.file as myModule
k = myModule.Klasa()
I am trying to compare date which are in string format like '20110930'
benchMark = datetime.datetime.strptime('20110701', "%Y%m%d")
actualDate = datetime.datetime.strptime('20110930', "%Y%m%d")
if actualDate.date() < benchMark.date():
print True
As I intended to keep my original Array as it was, I solved this problem in the following manner:
List<Integer> normalArray= new ArrayList<>();
List<Integer> reversedArray = new ArrayList<>();
// Fill up array here
for (int i = 1; i <= normalArray.size(); i++) {
reversedArray .add(normalArray.get(normalArray.size()-i));
}
So basically loop through the initial array and add all the values in reversed order to the new (reversed) array. The type of the list can be anything. I work my way through this code multiple times, this causes some of the other solutions not to work.
Set the aaSorting
option to an empty array. It will disable initial sorting, whilst still allowing manual sorting when you click on a column.
"aaSorting": []
The aaSorting array should contain an array for each column to be sorted initially containing the column's index and a direction string ('asc' or 'desc').
The output of ps aux
looks like you did not start docker through systemd/systemctl.
It looks like you started it with:
sudo dockerd -H gridsim1103:2376
When you try to stop it with systemctl, nothing should happen as the resulting dockerd process is not controlled by systemd. So the behavior you see is expected.
The correct way to start docker is to use systemd/systemctl:
systemctl enable docker
systemctl start docker
After this, docker should start on system start.
EDIT: As you already have the docker process running, simply kill it by pressing CTRL+C on the terminal you started it. Or send a kill signal to the process.
You would need to decompile the apk as Davis suggested, can use tools such as apkTool , then if you need to change the source code you would need other tools to do that.
You would then need to put the apk back together and sign it, if you don't have the original key used to sign the apk this means the new apk will have a different signature.
If the developer employed any obfuscation or other techniques to protect the app then it gets more complicated.
In short its a pretty complex and technical procedure, so if the developer is really just out of reach, its better to wait until he is in reach. And ask for the source code next time.