When you call loadTeachers()
on DOMReady the context of this
will not be the #CourseSelect
element.
You can fix this by triggering a change()
event on the #CourseSelect
element on load of the DOM:
$("#CourseSelect").change(loadTeachers).change(); // or .trigger('change');
Alternatively can use $.proxy
to change the context the function runs under:
$("#CourseSelect").change(loadTeachers);
$.proxy(loadTeachers, $('#CourseSelect'))();
Or the vanilla JS equivalent of the above, bind()
:
$("#CourseSelect").change(loadTeachers);
loadTeachers.bind($('#CourseSelect'));
Adding to @Hendrik Eichler Answer, the n vh
uses n%
of the viewport's initial containing block.
.element{
height: 50vh; /* Would mean 50% of Viewport height */
width: 75vw; /* Would mean 75% of Viewport width*/
}
Also, the viewport height is for devices of any resolution, the view port height, width is one of the best ways (similar to css design using % values but basing it on the device's view port height and width)
vh
Equal to 1% of the height of the viewport's initial containing block.
vw
Equal to 1% of the width of the viewport's initial containing block.
vi
Equal to 1% of the size of the initial containing block, in the direction of the root element’s inline axis.
vb
Equal to 1% of the size of the initial containing block, in the direction of the root element’s block axis.
vmin
Equal to the smaller of vw and vh.
vmax
Equal to the larger of vw and vh.
Ref: https://developer.mozilla.org/en-US/docs/Web/CSS/length#Viewport-percentage_lengths
myList = [i.split('\t')[0] for i in myList]
if mylist != []:
print(mylist[0])
else:
print(None)
After changing main port from 80 to 8080 you have to change the config in XAMPP control panel as I show in the images:
Then restart the service and that's it !
you can solve it by overriding the Run function of CI_Form_Validation
copy this function in a class which extends CI_Form_Validation .
This function will override the parent class function . Here i added only a extra check which can handle file also
/**
* Run the Validator
*
* This function does all the work.
*
* @access public
* @return bool
*/
function run($group = '') {
// Do we even have any data to process? Mm?
if (count($_POST) == 0) {
return FALSE;
}
// Does the _field_data array containing the validation rules exist?
// If not, we look to see if they were assigned via a config file
if (count($this->_field_data) == 0) {
// No validation rules? We're done...
if (count($this->_config_rules) == 0) {
return FALSE;
}
// Is there a validation rule for the particular URI being accessed?
$uri = ($group == '') ? trim($this->CI->uri->ruri_string(), '/') : $group;
if ($uri != '' AND isset($this->_config_rules[$uri])) {
$this->set_rules($this->_config_rules[$uri]);
} else {
$this->set_rules($this->_config_rules);
}
// We're we able to set the rules correctly?
if (count($this->_field_data) == 0) {
log_message('debug', "Unable to find validation rules");
return FALSE;
}
}
// Load the language file containing error messages
$this->CI->lang->load('form_validation');
// Cycle through the rules for each field, match the
// corresponding $_POST or $_FILES item and test for errors
foreach ($this->_field_data as $field => $row) {
// Fetch the data from the corresponding $_POST or $_FILES array and cache it in the _field_data array.
// Depending on whether the field name is an array or a string will determine where we get it from.
if ($row['is_array'] == TRUE) {
if (isset($_FILES[$field])) {
$this->_field_data[$field]['postdata'] = $this->_reduce_array($_FILES, $row['keys']);
} else {
$this->_field_data[$field]['postdata'] = $this->_reduce_array($_POST, $row['keys']);
}
} else {
if (isset($_POST[$field]) AND $_POST[$field] != "") {
$this->_field_data[$field]['postdata'] = $_POST[$field];
} else if (isset($_FILES[$field]) AND $_FILES[$field] != "") {
$this->_field_data[$field]['postdata'] = $_FILES[$field];
}
}
$this->_execute($row, explode('|', $row['rules']), $this->_field_data[$field]['postdata']);
}
// Did we end up with any errors?
$total_errors = count($this->_error_array);
if ($total_errors > 0) {
$this->_safe_form_data = TRUE;
}
// Now we need to re-set the POST data with the new, processed data
$this->_reset_post_array();
// No errors, validation passes!
if ($total_errors == 0) {
return TRUE;
}
// Validation fails
return FALSE;
}
Alot of these answers are shocking, really. Heres some code from my XanderUI Control library that fixes this.
private void OnChanged(object sender, FilesystemEventArgs e)
{
if (FSWatcher.IncludeSubdirectories == true)
{
if (File.Exists(e.FullPath)) { DO YOUR FILE CHANGE STUFF HERE... }
}
else DO YOUR DIRECTORY CHANGE STUFF HERE...
}
There is no updated
dynamic table. There is just inserted
and deleted
. On an UPDATE
command, the old data is stored in the deleted
dynamic table, and the new values are stored in the inserted
dynamic table.
Think of an UPDATE
as a DELETE/INSERT
combination.
You can grab the demo source code from here: http://abhinavsingh.com/blog/2008/05/gmail-type-attachment-how-to-make-one/
It is ready to use, or you can modify to suit your application needs. Hope it helps :)
Take a look at the source:
function socketCloseListener() {
var socket = this;
var parser = socket.parser;
var req = socket._httpMessage;
debug('HTTP socket close');
req.emit('close');
if (req.res && req.res.readable) {
// Socket closed before we emitted 'end' below.
req.res.emit('aborted');
var res = req.res;
res.on('end', function() {
res.emit('close');
});
res.push(null);
} else if (!req.res && !req._hadError) {
// This socket error fired before we started to
// receive a response. The error needs to
// fire on the request.
req.emit('error', createHangUpError());
req._hadError = true;
}
}
The message is emitted when the server never sends a response.
If you're a FP (functional programming) fan, Ramda has a neat helper function for this called defaultTo :
usage:
const result = defaultTo(30)(value)
It's more useful when dealing with undefined
boolean values:
const result2 = defaultTo(false)(dashboard.someValue)
Try that out bud
sudo wget http://cdn.mysql.com//Downloads/Connector-Python/mysql-connector-python-2.1.3.tar.gz
gunzip mysql-connector-python-2.1.3.tar.gz
tar xf mysql-connector-python-2.1.3.tar
cd mysql-connector-python-2.1.3
sudo python3 setup.py install
You could add flex-basis: 100%
to achieve this.
.header {
display: flex;
}
.item {
flex-basis: 100%;
text-align: center;
border: 1px solid black;
}
For what it's worth, you could also use flex: 1
for the same results as well.
The shorthand of flex: 1
is the same as flex: 1 1 0
, which is equivalent to:
.item {
flex-grow: 1;
flex-shrink: 1;
flex-basis: 0;
text-align: center;
border: 1px solid black;
}
Because performance was really important for me, I benchmarked all the functions above.
NOTE: Data from @Simon O'Hanlon's post. Only with size 15000 instead of 10.
library(tidyverse)
library(microbenchmark)
set.seed(123)
df <- data.frame(id = 1:15000,
nas = rep(NA, 15000),
vals = sample(c(1:3, NA), 15000,
repl = TRUE))
df
MadSconeF1 <- function(x) x[, colSums(is.na(x)) != nrow(x)]
MadSconeF2 <- function(x) x[colSums(!is.na(x)) > 0]
BradCannell <- function(x) x %>% select_if(~sum(!is.na(.)) > 0)
SimonOHanlon <- function(x) x[ , !apply(x, 2 ,function(y) all(is.na(y)))]
jsta <- function(x) janitor::remove_empty(x)
SiboJiang <- function(x) x %>% dplyr::select_if(~!all(is.na(.)))
akrun <- function(x) Filter(function(y) !all(is.na(y)), x)
mbm <- microbenchmark(
"MadSconeF1" = {MadSconeF1(df)},
"MadSconeF2" = {MadSconeF2(df)},
"BradCannell" = {BradCannell(df)},
"SimonOHanlon" = {SimonOHanlon(df)},
"SiboJiang" = {SiboJiang(df)},
"jsta" = {jsta(df)},
"akrun" = {akrun(df)},
times = 1000)
mbm
Results:
Unit: microseconds
expr min lq mean median uq max neval cld
MadSconeF1 154.5 178.35 257.9396 196.05 219.25 5001.0 1000 a
MadSconeF2 180.4 209.75 281.2541 226.40 251.05 6322.1 1000 a
BradCannell 2579.4 2884.90 3330.3700 3059.45 3379.30 33667.3 1000 d
SimonOHanlon 511.0 565.00 943.3089 586.45 623.65 210338.4 1000 b
SiboJiang 2558.1 2853.05 3377.6702 3010.30 3310.00 89718.0 1000 d
jsta 1544.8 1652.45 2031.5065 1706.05 1872.65 11594.9 1000 c
akrun 93.8 111.60 139.9482 121.90 135.45 3851.2 1000 a
autoplot(mbm)
mbm %>%
tbl_df() %>%
ggplot(aes(sample = time)) +
stat_qq() +
stat_qq_line() +
facet_wrap(~expr, scales = "free")
i make in word by doing this:
dpkg-reconfigure locales
and choose your preferred locales
pg_createcluster 9.5 main --start
(9.5 is my version of postgresql)
/etc/init.d/postgresql start
and then it word!
sudo su - postgres
psql
In addition to existing good answers, note that Jackson 1.9 improved handling by adding "property unification", meaning that ALL annotations from difference parts of a logical property are combined, using (hopefully) intuitive precedence.
In Jackson 1.8 and prior, only field and getter annotations were used when determining what and how to serialize (writing JSON); and only and setter annotations for deserialization (reading JSON). This sometimes required addition of "extra" annotations, like annotating both getter and setter.
With Jackson 1.9 and above these extra annotations are NOT needed. It is still possible to add those; and if different names are used, one can create "split" properties (serializing using one name, deserializing using other): this is occasionally useful for sort of renaming.
RDD.map
returns all elements in single array
RDD.flatMap
returns elements in Arrays of array
let's assume we have text in text.txt file as
Spark is an expressive framework
This text is to understand map and faltMap functions of Spark RDD
Using map
val text=sc.textFile("text.txt").map(_.split(" ")).collect
output:
text: **Array[Array[String]]** = Array(Array(Spark, is, an, expressive, framework), Array(This, text, is, to, understand, map, and, faltMap, functions, of, Spark, RDD))
Using flatMap
val text=sc.textFile("text.txt").flatMap(_.split(" ")).collect
output:
text: **Array[String]** = Array(Spark, is, an, expressive, framework, This, text, is, to, understand, map, and, faltMap, functions, of, Spark, RDD)
This might be a little late. But here is one of the usage. This to get the count of the number of files.
Create a pointer to memory (a new obj in this case) and have the property of the object modified. Java 8 stream doesn't allow to modify the pointer itself and hence if you declare just count as a variable and try to increment within the stream it will never work and throw a compiler exception in the first place
Path path = Paths.get("/Users/XXXX/static/test.txt");
Count c = new Count();
c.setCount(0);
Files.lines(path).forEach(item -> {
c.setCount(c.getCount()+1);
System.out.println(item);});
System.out.println("line count,"+c);
public static class Count{
private int count;
public int getCount() {
return count;
}
public void setCount(int count) {
this.count = count;
}
@Override
public String toString() {
return "Count [count=" + count + "]";
}
}
2^31-1 bytes. So, a little less than 2^31-1 characters for varchar(max) and half that for nvarchar(max).
For my Win7
Paradox was in being java.exe and javaw.exe in System32 folder. Opening that folder I couldn't see them but using search in Start menu I get links to those files, removed them. Next searsh gave me links to files from JAVA_HOME
magic )
The problem using: id -u, $EUID and whoami is all of them give false positive when I fake the root, for example:
$ fakeroot
id:
$ id -u
0
EUID:
$ echo $EUID
0
whoami:
$ whoami
root
then a reliable and hacking way is verify if the user has access to the /root directory:
$ ls /root/ &>/dev/null && is_root=true || is_root=false; echo $is_root
I had the same problem on Windows 7 64-bit Pro. I adjusted network adapters binding using Control panel but nothing changed. Also metrics where showing that Win should use Ethernet adapter as primary, but it didn't.
Then a tried to uninstall Ethernet adapter driver and then install it again (without restart) and then I checked metrics for sure.
After this, Windows started prioritize Ethernet adapter.
Funny the answer is hidden in among the answers.
str.replace("•", "something")
would work if you use the right semantics.
str.replace(u"\u2022","something")
works wonders ;) , thnx to RParadox for the hint.
I was also in the same problem, check your build path in eclipse by Right Click on Project > build path > configure build path
Now check for Excluded Files, it should not have your file specified there by any means or by regex.
Cheers!
When I tried to select the development provisioning profile in Code Signing Identity is would say "profile doesn't match any valid certificate". So when I followed the two step process below it worked:
1) Under "Code Signing Identity" for Development change to "Don't Code Sign".
2) Then Under "Code Signing Identity" for Development you will be able to select your provisioning profile for Development.
Drove me nuts, but stumbled upon the solution.
ANDROID_HOME
Deprecated (in Android Studio), use ANDROID_SDK_ROOT
instead.
ANDROID_SDK_ROOT
Installation directory of Android SDK package.
Example: C:\AndroidSDK
or /usr/local/android-sdk/
ANDROID_NDK_ROOT
Installation directory of Android NDK package. (WITHOUT ANY SPACE)
Example: C:\AndroidNDK
or /usr/local/android-ndk/
ANDROID_SDK_HOME
Location of SDK related data/user files.
Example: C:\Users\<USERNAME>\.android\
or ~/.android/
ANDROID_EMULATOR_HOME
Location of emulator-specific data files.
Example: C:\Users\<USERNAME>\.android\
or ~/.android/
ANDROID_AVD_HOME
Location of AVD-specific data files.
Example: C:\Users\<USERNAME>\.android\avd\
or ~/.android/avd/
JDK_HOME
and JAVA_HOME
Installation directory of JDK (aka Java SDK) package.
Note: This is used to run Android Studio(and other Java-based applications). Actually when you run Android Studio, it checks for JDK_HOME
then JAVA_HOME
environment variables to use.
Given (almost) everything on unix is a file, and lsof lists open files...
Linux : netstat -putan or lsof | grep TCP
OSX : lsof | grep TCP
Other Unixen : lsof
way...
scan
can read from a web page automatically; you don't necessarily have to mess with connections.
If you don't want any changes in design
and definitely want it to just match a remote's branch, you can also just delete the branch and recreate it:
# Switch to some branch other than design
$ git br -D design
$ git co -b design origin/design # Will set up design to track origin's design branch
I'll make a strong suggestion for rvm.
It's a great way to manage multiple Rubies and gems sets without colliding with the system version.
I'll add that now (4/2/2013), I use rbenv a lot, because my needs are simple. RVM is great, but it's got a lot of capability I never need, so I have it on some machines and rbenv on my desktop and laptop. It's worth checking out both and seeing which works best for your needs.
Please set http content type in header and also make sure the server is authenticating CORS. This is how to do it in PHP:
//NOT A TESTED CODE
header('Content-Type: application/json;charset=UTF-8');
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: DELETE, HEAD, GET, OPTIONS, POST, PUT');
header('Access-Control-Allow-Headers: Content-Type, Content-Range, Content-Disposition, Content-Description');
header('Access-Control-Max-Age: 1728000');
Please refer to:
http://www.w3.org/TR/cors/#cross-origin-request-with-preflight-0
You should declare the variable in a header file:
extern int x;
and then define it in one C file:
int x;
In C, the difference between a definition and a declaration is that the definition reserves space for the variable, whereas the declaration merely introduces the variable into the symbol table (and will cause the linker to go looking for it when it comes to link time).
Although it is too late to answer this question. Here are my answer on the same.
If you are using CodeIgniter then you can use inbuilt methods defined in query_builder class.
$this->db->insert_batch()
Generates an insert string based on the data you supply, and runs the query. You can either pass an array or an object to the function. Here is an example using an array:
$data = array(
array(
'title' => 'My title',
'name' => 'My Name',
'date' => 'My date'
),
array(
'title' => 'Another title',
'name' => 'Another Name',
'date' => 'Another date'
)
);
$this->db->insert_batch('mytable', $data);
// Produces: INSERT INTO mytable (title, name, date) VALUES ('My title', 'My name', 'My date'), ('Another title', 'Another name', 'Another date')
The first parameter will contain the table name, the second is an associative array of values.
You can find more details about query_builder here
To try and over-simplify the description of a stack and a queue, They are both dynamic chains of information elements that can be accessed from one end of the chain and the only real difference between them is the fact that:
when working with a stack
while with a queue
NOTE: I am using the abstract wording of retrieve/remove in this context because there are instances when you just retrieve the element from the chain or in a sense just read it or access its value, but there also instances when you remove the element from the chain and finally there are instances when you do both actions with the same call.
Also the word element is purposely used in order to abstract the imaginary chain as much as possible and decouple it from specific programming language terms. This abstract information entity called element could be anything, from a pointer, a value, a string or characters, an object,... depending on the language.
In most cases, though it is actually either a value or a memory location (i.e. a pointer). And the rest are just hiding this fact behind the language jargon<
A queue can be helpful when the order of the elements is important and needs to be exactly the same as when the elements first came into your program. For instance when you process an audio stream or when you buffer network data. Or when you do any type of store and forward processing. In all of these cases you need the sequence of the elements to be output in the same order as they came into your program, otherwise the information may stop making sense. So, you could break your program in a part that reads data from some input, does some processing and writes them in a queue and a part that retrieves data from the queue processes them and stores them in another queue for further processing or transmitting the data.
A stack can be helpful when you need to temporarily store an element that is going to be used in the immediate step(s) of your program. For instance, programming languages usually use a stack structure to pass variables to functions. What they actually do is store (or push) the function arguments in the stack and then jump to the function where they remove and retrieve (or pop) the same number of elements from the stack. That way the size of the stack is dependent of the number of nested calls of functions. Additionally, after a function has been called and finished what it was doing, it leaves the stack in the exact same condition as before it has being called! That way any function can operate with the stack ignoring how other functions operate with it.
Lastly, you should know that there are other terms used out-there for the same of similar concepts. For instance a stack could be called a heap. There are also hybrid versions of these concepts, for instance a double-ended queue can behave at the same time as a stack and as a queue, because it can be accessed by both ends simultaneously. Additionally, the fact that a data structure is provided to you as a stack or as a queue it does not necessarily mean that it is implemented as such, there are instances in which a data structure can be implemented as anything and be provided as a specific data structure simply because it can be made to behave like such. In other words, if you provide a push and pop method to any data structure, they magically become stacks!
Why do you need a console application if you want to hide console itself? =)
I recommend setting Project Output type to Windows Application instead of Console application. It will not show you console window, but execute all actions, like Console application do.
As of PHP 5.6 @$filePath
will not work in CURLOPT_POSTFIELDS
without CURLOPT_SAFE_UPLOAD
being set and it is completely removed in PHP 7. You will need to use a CurlFile object, RFC here.
$fields = [
'name' => new \CurlFile($filePath, 'image/png', 'filename.png')
];
curl_setopt($resource, CURLOPT_POSTFIELDS, $fields);
This question will answer how to encrypt/decrypt: Encrypt and decrypt a string in C#?
You didn't specify a database, but you will want to base-64 encode it, using Convert.toBase64String. For an example you can use: http://www.opinionatedgeek.com/Blog/blogentry=000361/BlogEntry.aspx
You'll then either save it in a varchar or a blob, depending on how long your encrypted message is, but for a password varchar should work.
The examples above will also cover decryption after decoding the base64.
UPDATE:
In actuality you may not need to use base64 encoding, but I found it helpful, in case I wanted to print it, or send it over the web. If the message is long enough it's best to compress it first, then encrypt, as it is harder to use brute-force when the message was already in a binary form, so it would be hard to tell when you successfully broke the encryption.
Create a cronjob like this to work on every minute
* * * * * /usr/bin/php path/to/cron.php &> /dev/null
If you need to search for all element's positions between certain indices, you can state them:
[i for i,x in enumerate([1,2,3,2]) if x==2 & 2<= i <=3] # -> [3]
Following up on @Bruno Bronosky and @mrteatime, I offer the suggestion that you just write your boolean return "backwards". This is what I mean:
foo()
{
if [ "$1" == "bar" ]; then
true; return
else
false; return
fi;
}
That eliminates the ugly two line requirement for every return statement.
In [5]: list(set(temp1) - set(temp2))
Out[5]: ['Four', 'Three']
Beware that
In [5]: set([1, 2]) - set([2, 3])
Out[5]: set([1])
where you might expect/want it to equal set([1, 3])
. If you do want set([1, 3])
as your answer, you'll need to use set([1, 2]).symmetric_difference(set([2, 3]))
.
you have to create an entry inside res/menu,
override onCreateOptionsMenu
and inflate it
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.yourentry, menu);
return true;
}
an entry for the menu could be:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/action_cart"
android:icon="@drawable/cart"
android:orderInCategory="100"
android:showAsAction="always"/>
</menu>
I just solved this type of problem. I was trying to increase
font-size to h4 size. I do not want to use h4 tag. I added my css after bootstrap.css it didn't work. The easiest way is this: On the HTML doc, type
<p class="h4">
You do not need to add anything to your css sheet. It works fine Question is suppose I want a size between h4 and h5? Answer why? Is this the only way to please your viewers? I will prefer this method to tampering with standard docs like bootstrap.
Take the solution. I have written this code in an easy format:
const insertWord = (sentence,word,index) => {
var sliceWord = word.slice(""),output = [],join; // Slicing the input word and declaring other variables
var sliceSentence = sentence.slice(""); // Slicing the input sentence into each alphabets
for (var i = 0; i < sliceSentence.length; i++)
{
if (i === index)
{ // checking if index of array === input index
for (var j = 0; j < word.length; j++)
{ // if yes we'll insert the word
output.push(sliceWord[j]); // Condition is true we are inserting the word
}
output.push(" "); // providing a single space at the end of the word
}
output.push(sliceSentence[i]); // pushing the remaining elements present in an array
}
join = output.join(""); // converting an array to string
console.log(join)
return join;
}
easily change the position of your keys and values,then use values to get key, in dictionary keys can have same value but they(keys) should be different. for instance if you have a list and the first value of it is a key for your problem and other values are the specs of the first value:
list1=["Name",'ID=13736','Phone:1313','Dep:pyhton']
you can save and use the data easily in Dictionary by this loop:
data_dict={}
for i in range(1, len(list1)):
data_dict[list1[i]]=list1[0]
print(data_dict)
{'ID=13736': 'Name', 'Phone:1313': 'Name', 'Dep:pyhton': 'Name'}
then you can find the key(name) base on any input value.
Check the output before the statement that caused current transaction is aborted
. This typically means that database threw an exception that your code had ignored and now expecting next queries to return some data.
So you now have a state mismatch between your application, which considers things are fine, and database, that requires you to rollback and re-start your transaction from the beginning.
You should catch all exceptions and rollback transactions in such cases.
Hosting on IIS Express: 1. Click on your project in the Solution Explorer to select the project. 2. If the Properties pane is not open, open it (F4). 3. In the Properties pane for your project: a) Set "Anonymous Authentication" to "Disabled". b) Set "Windows Authentication" to "Enabled".
The operations needed to be performed, require numpy arrays either created via
np.array()
or can be converted from list to an array via
np.stack()
As in the above mentioned case, 2 lists are inputted as operands it triggers the error.
Get the names and default values of a function’s arguments. A tuple of four things is returned: (args, varargs, varkw, defaults). args is a list of the argument names (it may contain nested lists). varargs and varkw are the names of the * and ** arguments or None. defaults is a tuple of default argument values or None if there are no default arguments; if this tuple has n elements, they correspond to the last n elements listed in args.
Changed in version 2.6: Returns a named tuple ArgSpec(args, varargs, keywords, defaults).
See can-you-list-the-keyword-arguments-a-python-function-receives.
{!! Form::text('firstname', null !!}
@if($errors->has('firstname'))
{{ $errors->first('firstname') }}
@endif
Log4j is able to watch the log4j.xml
file for configuration changes. If you change the log4j file, log4j will automatically refresh the log levels according to your changes. See the documentation of org.apache.log4j.xml.DOMConfigurator.configureAndWatch(String,long
) for details. The default wait time between checks is 60 seconds. These changes would be persistent, since you directly change the configuration file on the filesystem. All you need to do is to invoke DOMConfigurator.configureAndWatch() once.
Caution: configureAndWatch method is unsafe for use in J2EE environments due to a Thread leak
Another way to set the log level (or reconfiguring in general) log4j is by using JMX. Log4j registers its loggers as JMX MBeans. Using the application servers MBeanServer consoles (or JDK's jconsole.exe) you can reconfigure each individual loggers. These changes are not persistent and would be reset to the config as set in the configuration file after you restart your application (server).
As described by Aaron, you can set the log level programmatically. You can implement it in your application in the way you would like it to happen. For example, you could have a GUI where the user or admin changes the log level and then call the setLevel()
methods on the logger. Whether you persist the settings somewhere or not is up to you.
You could use List inside the method and transform it to an array at the end. But i think if we talk about an max-value of 20, your code is faster.
private Update BuildMetaData(MetaData[] nvPairs)
{
Update update = new Update();
List<InputProperty> ip = new List<InputProperty>();
for (int i = 0; i < nvPairs.Length; i++)
{
if (nvPairs[i] == null) break;
ip[i] = new InputProperty();
ip[i].Name = "udf:" + nvPairs[i].Name;
ip[i].Val = nvPairs[i].Value;
}
update.Items = ip.ToArray();
return update;
}
In my case it also turned into a multi-hour debugging session. Trying to set up a more verbose logging turned out to be completely futile because the problem was that my application did not even start. Here's my context.xml
:
<?xml version='1.0' encoding='utf-8'?>
<Context path="/rc2" docBase="rc2" antiResourceLocking="false" >
<JarScanner>
<JarScanFilter
tldScan="spring-webmvc*.jar, spring-security-taglibs*.jar, jakarta.servlet.jsp.jstl*.jar"
tldSkip="*.jar"
<!-- my-own-app*.jar on the following line was missing! -->
pluggabilityScan="${tomcat.util.scan.StandardJarScanFilter.jarsToScan}, my-own-app*.jar"
pluggabilitySkip="*.jar"/>
</JarScanner>
</Context>
The problem was that to speed up the application startup, I started skipping scanning of many JARs, unfortunately including my own application.
Android Studio 1.3
I did nothing else and it worked for me.
The accepted answer didn't quite work for me as I got a 502 Bad Gateway result from the ajax call even though everything seemed to be returning fine from the controller.
Perhaps I was hitting a limit with TempData - not sure, but I found that if I used IMemoryCache instead of TempData, it worked fine, so here is my adapted version of the code in the accepted answer:
public ActionResult PostReportPartial(ReportVM model){
// Validate the Model is correct and contains valid data
// Generate your report output based on the model parameters
// This can be an Excel, PDF, Word file - whatever you need.
// As an example lets assume we've generated an EPPlus ExcelPackage
ExcelPackage workbook = new ExcelPackage();
// Do something to populate your workbook
// Generate a new unique identifier against which the file can be stored
string handle = Guid.NewGuid().ToString();
using(MemoryStream memoryStream = new MemoryStream()){
workbook.SaveAs(memoryStream);
memoryStream.Position = 0;
//TempData[handle] = memoryStream.ToArray();
//This is an equivalent to tempdata, but requires manual cleanup
_cache.Set(handle, memoryStream.ToArray(),
new MemoryCacheEntryOptions().SetSlidingExpiration(TimeSpan.FromMinutes(10)));
//(I'd recommend you revise the expiration specifics to suit your application)
}
// Note we are returning a filename as well as the handle
return new JsonResult() {
Data = new { FileGuid = handle, FileName = "TestReportOutput.xlsx" }
};
}
AJAX call remains as with the accepted answer (I made no changes):
$ajax({
cache: false,
url: '/Report/PostReportPartial',
data: _form.serialize(),
success: function (data){
var response = JSON.parse(data);
window.location = '/Report/Download?fileGuid=' + response.FileGuid
+ '&filename=' + response.FileName;
}
})
The controller action to handle the downloading of the file:
[HttpGet]
public virtual ActionResult Download(string fileGuid, string fileName)
{
if (_cache.Get<byte[]>(fileGuid) != null)
{
byte[] data = _cache.Get<byte[]>(fileGuid);
_cache.Remove(fileGuid); //cleanup here as we don't need it in cache anymore
return File(data, "application/vnd.ms-excel", fileName);
}
else
{
// Something has gone wrong...
return View("Error"); // or whatever/wherever you want to return the user
}
}
...
Now there is some extra code for setting up MemoryCache...
In order to use "_cache" I injected in the constructor for the controller like so:
using Microsoft.Extensions.Caching.Memory;
namespace MySolution.Project.Controllers
{
public class MyController : Controller
{
private readonly IMemoryCache _cache;
public LogController(IMemoryCache cache)
{
_cache = cache;
}
//rest of controller code here
}
}
And make sure you have the following in ConfigureServices in Startup.cs:
services.AddDistributedMemoryCache();
Assume your file looks like this and is named test.txt (space delimited):
1 2
3 4
5 6
7 8
Then:
#!/usr/bin/python
import numpy as np
import matplotlib.pyplot as plt
with open("test.txt") as f:
data = f.read()
data = data.split('\n')
x = [row.split(' ')[0] for row in data]
y = [row.split(' ')[1] for row in data]
fig = plt.figure()
ax1 = fig.add_subplot(111)
ax1.set_title("Plot title...")
ax1.set_xlabel('your x label..')
ax1.set_ylabel('your y label...')
ax1.plot(x,y, c='r', label='the data')
leg = ax1.legend()
plt.show()
I find that browsing the gallery of plots on the matplotlib site helpful for figuring out legends and axes labels.
Copy the python file to /bin:
sudo cp -i /path/to/your_script.py /bin
Add A New Cron Job:
sudo crontab -e
Scroll to the bottom and add the following line (after all the #'s
):
@reboot python /bin/your_script.py &
The “&” at the end of the line means the command is run in the background and it won’t stop the system booting up.
Test it:
sudo reboot
Add this file to your Desktop: test_code.py (run it to check that it works for you)
from os.path import expanduser
import datetime
file = open(expanduser("~") + '/Desktop/HERE.txt', 'w')
file.write("It worked!\n" + str(datetime.datetime.now()))
file.close()
Run the following commands:
sudo cp -i ~/Desktop/test_code.py /bin
sudo crontab -e
Add the following line and save it:
@reboot python /bin/test_code.py &
Now reboot your computer and you should find a new file on your Desktop: HERE.txt
You should be pointing it towards the Developer
directory, not the Xcode application bundle. Run this:
sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
With recent versions of Xcode, you can go to Xcode ? Preferences… ? Locations and pick one of the options for Command Line Tools to set the location.
The following works for me in Firefox and Chrome. In Firefox it even works from file:///
models/course.js
export function Course() {
this.id = '';
this.name = '';
};
models/student.js
import { Course } from './course.js';
export function Student() {
this.firstName = '';
this.lastName = '';
this.course = new Course();
};
index.html
<div id="myDiv">
</div>
<script type="module">
import { Student } from './models/student.js';
window.onload = function () {
var x = new Student();
x.course.id = 1;
document.getElementById('myDiv').innerHTML = x.course.id;
}
</script>
How about using a List
instead? For example, ArrayList<integer>
Great answer Sohnee. Would like to add that if you have an array of objects and you wish to sort by key then its almost the same, this is an example of one that can sort by both date(number) or title(string):
if (sortBy === 'date') {
return n1.date - n2.date
} else {
if (n1.title > n2.title) {
return 1;
}
if (n1.title < n2.title) {
return -1;
}
return 0;
}
Could also make the values inside as variables n1[field] vs n2[field] if its more dynamic, just keep the diff between strings and numbers.
Use repr()[1:-1]. In this case, the double quotes don't need to be escaped. The [-1:1] slice is to remove the single quote from the beginning and the end.
>>> x = raw_input()
I'm "stuck" :\
>>> print x
I'm "stuck" :\
>>> print repr(x)[1:-1]
I\'m "stuck" :\\
Or maybe you just want to escape a phrase to paste into your program? If so, do this:
>>> raw_input()
I'm "stuck" :\
'I\'m "stuck" :\\'
How is this different from the following?
This line of code here:
String newString = new String(oldString.getBytes("UTF-8"), "UTF-8"));
constructs a new String object (i.e. a copy of oldString
), while this line of code:
String newString = oldString;
declares a new variable of type java.lang.String
and initializes it to refer to the same String object as the variable oldString
.
Is there any scenario in which the two lines will have different outputs?
Absolutely:
String newString = oldString;
boolean isSameInstance = newString == oldString; // isSameInstance == true
vs.
String newString = new String(oldString.getBytes("UTF-8"), "UTF-8"));
// isSameInstance == false (in most cases)
boolean isSameInstance = newString == oldString;
a_horse_with_no_name (see comment) is right of course. The equivalent of
String newString = new String(oldString.getBytes("UTF-8"), "UTF-8"));
is
String newString = new String(oldString);
minus the subtle difference wrt the encoding that Peter Lawrey explains in his answer.
num = raw_input ("Type Number : ")
search = open("file.txt","r")
for line in search.readlines():
for digit in num:
# Check if any of the digits provided by the user are in the line.
if digit in line:
print line
continue
Pretty example by Miquel (#32) should be refilled:
<html>
<head>
<script type="text/javascript">
function handleIt(txt) { // txt == content of form input
alert("Entered value: " + txt);
}
</script>
</head>
<body>
<!-- javascript function in form action must have a parameter. This
parameter contains a value of named input -->
<form name="myform" action="javascript:handleIt(lastname.value)">
<input type="text" name="lastname" id="lastname" maxlength="40">
<input name="Submit" type="submit" value="Update"/>
</form>
</body>
</html>
And the form should have:
<form name="myform" action="javascript:handleIt(lastname.value)">
On Windows: if you use %>% inside a %dopar% loop, you have to add a reference to load package dplyr
(or magrittr
, which dplyr
loads).
Example:
plots <- foreach(myInput=iterators::iter(plotCount), .packages=c("RODBC", "dplyr")) %dopar%
{
return(getPlot(myInput))
}
If you omit the .packages
command, and use %do%
instead to make it all run in a single process, then works fine. The reason is that it all runs in one process, so it doesn't need to specifically load new packages.
function selectedValues(ele){_x000D_
var arr = [];_x000D_
for(var i = 0; i < ele.length; i++){_x000D_
if(ele[i].type == 'checkbox' && ele[i].checked){_x000D_
arr.push(ele[i].value);_x000D_
}_x000D_
}_x000D_
return arr;_x000D_
}
_x000D_
If you are using a newer version (over 1.3.x) you should learn more about the function parseJSON! I experienced the same problem. Use an old version or change your code
success=function(data){
//something like this
jQuery.parseJSON(data)
}
For Linux/Ubuntu
Create a new File from Terminal as
gedit emulator.sh (Use any Name for file here i have used "emulator")
now write following lines in this file
cd /home/userName/Android/Sdk/tools/
./emulator @your created Android device Name
(here after @ write the name of your AVD e.g
./emulator @Nexus_5X_API_27 )
Now save the file and run your emulator using following commands
./emulator.sh
In case of Permission denied use following command before above command
chmod +x emulator.sh
All set Go..
there is no standard, but most frameworks support both, you can see for example for java spring that it accepts both here
@GetMapping("/api/foos")
@ResponseBody
public String getFoos(@RequestParam List<String> id) {
return "IDs are " + id;
}
And Spring MVC will map a comma-delimited id parameter:
http://localhost:8080/api/foos?id=1,2,3
----
IDs are [1,2,3]
Or a list of separate id parameters:
http://localhost:8080/api/foos?id=1&id=2
----
IDs are [1,2]
Looking at the Laravel API:
Request::ip();
Internally, it uses the getClientIps
method from the Symfony Request Object:
public function getClientIps()
{
$clientIps = array();
$ip = $this->server->get('REMOTE_ADDR');
if (!$this->isFromTrustedProxy()) {
return array($ip);
}
if (self::$trustedHeaders[self::HEADER_FORWARDED] && $this->headers->has(self::$trustedHeaders[self::HEADER_FORWARDED])) {
$forwardedHeader = $this->headers->get(self::$trustedHeaders[self::HEADER_FORWARDED]);
preg_match_all('{(for)=("?\[?)([a-z0-9\.:_\-/]*)}', $forwardedHeader, $matches);
$clientIps = $matches[3];
} elseif (self::$trustedHeaders[self::HEADER_CLIENT_IP] && $this->headers->has(self::$trustedHeaders[self::HEADER_CLIENT_IP])) {
$clientIps = array_map('trim', explode(',', $this->headers->get(self::$trustedHeaders[self::HEADER_CLIENT_IP])));
}
$clientIps[] = $ip; // Complete the IP chain with the IP the request actually came from
$ip = $clientIps[0]; // Fallback to this when the client IP falls into the range of trusted proxies
foreach ($clientIps as $key => $clientIp) {
// Remove port (unfortunately, it does happen)
if (preg_match('{((?:\d+\.){3}\d+)\:\d+}', $clientIp, $match)) {
$clientIps[$key] = $clientIp = $match[1];
}
if (IpUtils::checkIp($clientIp, self::$trustedProxies)) {
unset($clientIps[$key]);
}
}
// Now the IP chain contains only untrusted proxies and the client IP
return $clientIps ? array_reverse($clientIps) : array($ip);
}
Here's my method:
var now = new Date();
var utc = new Date(now.getTime() + now.getTimezoneOffset() * 60000);
The resulting utc
object isn't really a UTC date, but a local date shifted to match the UTC time (see comments). However, in practice it does the job.
The first thing you should make sure is that your static library has all architectures. When you do a lipo -info myStaticLibrary.a
on terminal - you should see armv7 armv7s i386 x86_64 arm64
architectures for your fat binary.
To accomplish that, I am assuming that you're making a universal binary - add the following to your architecture settings of static library project -
Standard architectures (including 64-bit) (armv7, armv7s, arm64)
of the static library project.$ARCHS_STANDARD
now includes 64-bit. You can also do $(ARCHS_STANDARD)
and armv7s
. Check lipo -info
without it, and you'll figure out the missing architectures. Here's the screenshot for all architectures -For your reference implementation (project using static library). The default settings should work fine -
Update 12/03/14 Xcode 6 Standard architectures exclude armv7s.
So, armv7s
is not needed? Yes. It seems that the general differences between armv7 and armv7s instruction sets are minor. So if you choose not to include armv7s, the targeted armv7 machine code still runs fine on 32 bit A6 devices, and hardly one will notice performance gap. Source
If there is a smarter way for Xcode 6.1+ (iOS 8.1 and above) - please share.
You can use jQuery change() function
$('input').change(function(){
//your codes
});
There are examples on how to use it on the API Page: http://api.jquery.com/change/
Instead of ((t[1])/length) * t[1] += string
, you should use string += ((t[1])/length) * t[1]
. (The other syntax issue - int is not iterable
- will be your exercise to figure out.)
First, find your EditText
in the resource of the android studio by using this code:
EditText value = (EditText) findViewById(R.id.editText1);
Then convert EditText
value into a string
and then parse the value to an int
.
int number = Integer.parseInt(x.getText().toString());
This will work
You can just capture the output and pass it through a filter, something like:
mysql show processlist
| grep -v '^\+\-\-'
| grep -v '^| Id'
| sort -n -k12
The two greps strip out the header and trailer lines (others may be needed if there are other lines not containing useful information) and the sort is done based on the numeric field number 12 (I think that's right).
This one works for your immediate output:
mysql show processlist
| grep -v '^\+\-\-'
| grep -v '^| Id'
| grep -v '^[0-9][0-9]* rows in set '
| grep -v '^ '
| sort -n -k12
I saw all of the answers which are appropriate only for a single activity but there is my solution which will block screenshot for all of the activities without adding any code to the activity. First of all make an Custom Application class and add a registerActivityLifecycleCallbacks
.Then register it in your manifest.
MyApplicationContext.class
public class MyApplicationContext extends Application {
private Context context;
public void onCreate() {
super.onCreate();
context = getApplicationContext();
setupActivityListener();
}
private void setupActivityListener() {
registerActivityLifecycleCallbacks(new ActivityLifecycleCallbacks() {
@Override
public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
activity.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE); }
@Override
public void onActivityStarted(Activity activity) {
}
@Override
public void onActivityResumed(Activity activity) {
}
@Override
public void onActivityPaused(Activity activity) {
}
@Override
public void onActivityStopped(Activity activity) {
}
@Override
public void onActivitySaveInstanceState(Activity activity, Bundle outState) {
}
@Override
public void onActivityDestroyed(Activity activity) {
}
});
}
}
Manifest
<application
android:name=".MyApplicationContext"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
Since the originating port 4200 is different than 8080,So before angular sends a create (PUT) request,it will send an OPTIONS request to the server to check what all methods and what all access-controls are in place. Server has to respond to that OPTIONS request with list of allowed methods and allowed origins.
Since you are using spring boot, the simple solution is to add ".allowedOrigins("http://localhost:4200");"
In your spring config,class
@Configuration
@EnableWebMvc
public class SpringConfig implements WebMvcConfigurer {
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/**").allowedOrigins("http://localhost:4200");
}
}
However a better approach will be to write a Filter(interceptor) which adds the necessary headers to each response.
In Android Studio 3.3 it is here:
According to the answer https://stackoverflow.com/a/49576954/2914140 in Android Studio 3.1 it is here:
This command is moved to File > Sync Project with Gradle Files
.
I think Apple are covering their backs a little here for a potentially kludgy piece of API.
[self dismissViewControllerAnimated:NO completion:nil]
Is actually a bit of a fiddle. Although you can - legitimately - call this on the presented view controller, all it does is forward the message on to the presenting view controller. If you want to do anything over and above just dismissing the VC, you will need to know this, and you need to treat it much the same way as a delegate method - as that's pretty much what it is, a baked-in somewhat inflexible delegate method.
Perhaps they've come across loads of bad code by people not really understanding how this is put together, hence their caution.
But of course, if all you need to do is dismiss the thing, go ahead.
My own approach is a compromise, at least it reminds me what is going on:
[[self presentingViewController] dismissViewControllerAnimated:NO completion:nil]
[Swift]
self.presentingViewController?.dismiss(animated: false, completion:nil)
for (int i = 1; i*i <= num; ++i)
{
if (num % i == 0)
cout << i << endl;
if (num/i!=i)
cout << num/i << endl;
}
Here's some madness for you, I actually went and measured it. Bloody hell, imagine that. I think I got some meaningful results.
I used a dual core P4, running Windows, using mingw gcc 4.4, building with "gcc foo.c -o foo.exe -std=c99 -Wall -O2".
I tested method 1 and method 2 from the original post. Initially kept the malloc outside the benchmark loop. Method 1 was 48 times faster than method 2. Bizarrely, removing -O2 from the build command made the resulting exe 30% faster (haven't investigated why yet).
Then I added a malloc and free inside the loop. That slowed down method 1 by a factor of 4.4. Method 2 slowed down by a factor of 1.1.
So, malloc + strlen + free DO NOT dominate the profile enough to make avoiding sprintf worth while.
Here's the code I used (apart from the loops were implemented with < instead of != but that broke the HTML rendering of this post):
void a(char *first, char *second, char *both)
{
for (int i = 0; i != 1000000 * 48; i++)
{
strcpy(both, first);
strcat(both, " ");
strcat(both, second);
}
}
void b(char *first, char *second, char *both)
{
for (int i = 0; i != 1000000 * 1; i++)
sprintf(both, "%s %s", first, second);
}
int main(void)
{
char* first= "First";
char* second = "Second";
char* both = (char*) malloc((strlen(first) + strlen(second) + 2) * sizeof(char));
// Takes 3.7 sec with optimisations, 2.7 sec WITHOUT optimisations!
a(first, second, both);
// Takes 3.7 sec with or without optimisations
//b(first, second, both);
return 0;
}
The # tag lets you send your data to the same file. I see it as a three step process:
With the method='#' you can do all of this in the same file.
After the submit query is executed the page will reload with the updated data from the DB.
Bullets take the color
property of the list:
.listStyle {
color: red;
}
Note if you want your list text to be a different colour, you have to wrap it in say, a p
, for example:
.listStyle p {
color: black;
}
<ul class="listStyle">
<li>
<p><strong>View :</strong> blah blah.</p>
</li>
<li>
<p><strong>View :</strong> blah blah.</p>
</li>
</ul>
If you are facing issue with angular/cli then use the following commands:
npm uninstall -g angular-cli
to uninstall the angular/cli.
npm cache clean
to clean your npm cache from app data folder under your username.
use npm cache verify
to verify your cache whether it is corrupted or not.
use npm cache verify --force
to clean your entire cache from your system.
Note:
You can also delete by the following the paths
C:\Users\"Your_syste_User_name"\AppData\Roaming\npm
and C:\Users\"Your_syste_User_name"\AppData\Roaming\npm-cache
Then use the following command to install latest angular/cli version globally in your system.
npm install -g @angular/cli@latest
To get more information visit github angular-cli update.
if not a:
print("List is empty")
Using the implicit booleanness of the empty list
is quite pythonic.
I didn't find answer for this in the comments, here is how can be used:
Minifiacation tools (good ones) add a comment to your .min.js file:
//# sourceMappingURL=yourFileName.min.js.map
which will connect your .map file.
When the min.js and js.map files are ready...
private static string GetUserNameById(string sId, string connStr)
{
System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient.SqlConnection(connStr);
System.Data.SqlClient.SqlCommand command;
try
{
// To be Assigned with Return value from DB
object getusername;
command = new System.Data.SqlClient.SqlCommand();
command.CommandText = "Select userName from [User] where userid = @userid";
command.Parameters.AddWithValue("@userid", sId);
command.CommandType = CommandType.Text;
conn.Open();
command.Connection = conn;
//Execute
getusername = command.ExecuteScalar();
//check for null due to non existent value in db and return default empty string
string UserName = getusername == null ? string.Empty : getusername.ToString();
return UserName;
}
catch (Exception ex)
{
throw new Exception("Could not get username", ex);
}
finally
{
conn.Close();
}
}
Blockquote
Using concatenation in Oracle SQL is very easy and interesting. But don't know much about MS-SQL.
Blockquote
Here we go for Oracle :
Syntax:
SQL> select First_name||Last_Name as Employee
from employees;
EllenAbel SundarAnde MozheAtkinson
Here AS: keyword used as alias. We can concatenate with NULL values. e.g. : columnm1||Null
Suppose any of your columns contains a NULL value then the result will show only the value of that column which has value.
You can also use literal character string in concatenation.
e.g.
select column1||' is a '||column2
from tableName;
Result: column1 is a column2.
in between literal should be encolsed in single quotation. you cna exclude numbers.
NOTE: This is only for oracle server//SQL.
To resolve this problem:
That's all.
From the Javadoc:
Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by
java.util.Hashtable
.The general contract of
hashCode
is:
Whenever it is invoked on the same object more than once during an execution of a Java application, the
hashCode
method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.If two objects are equal according to the
equals(Object)
method, then calling thehashCode
method on each of the two objects must produce the same integer result.It is not required that if two objects are unequal according to the
equals(java.lang.Object)
method, then calling thehashCode
method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables.As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java programming language.)
Fragment PHP (in console Cloud9):
echo "\n";
echo "1: first_srt=1\nsecnd_srt=2\n";
echo "\n";
echo '2: first_srt=1\nsecnd_srt=2\n';
echo "\n";
echo "==============\n";
echo "\n";
resulting output:
1: first_srt=1
secnd_srt=2
2: first_srt=1\nsecnd_srt=2\n
==============
Difference between 1 and 2: " versus '
A good way to do it is this:
span + span {
margin-left: 10px;
}
Every span
preceded by a span
(so, every span
except the first) will have margin-left: 10px
.
Here's a more detailed answer to a similar question: Separators between elements without hacks
Sets require their items to be hashable. Out of types predefined by Python only the immutable ones, such as strings, numbers, and tuples, are hashable. Mutable types, such as lists and dicts, are not hashable because a change of their contents would change the hash and break the lookup code.
Since you're sorting the list anyway, just place the duplicate removal after the list is already sorted. This is easy to implement, doesn't increase algorithmic complexity of the operation, and doesn't require changing sublists to tuples:
def uniq(lst):
last = object()
for item in lst:
if item == last:
continue
yield item
last = item
def sort_and_deduplicate(l):
return list(uniq(sorted(l, reverse=True)))
In z/OS while on version 10, use of CURRENT APPLICATION COMPATIBILITY
is not allowed. You will have to resort to:
SELECT GETVARIABLE('SYSIBM.VERSION') AS VERSION,
GETVARIABLE('SYSIBM.NEWFUN') AS COMPATIBILITY
FROM SYSIBM.SYSDUMMY1;
Here is a link to all the variables available: https://www.ibm.com/support/knowledgecenter/SSEPEK_12.0.0/sqlref/src/tpc/db2z_refs2builtinsessionvars.html#db2z_refs2builtinsessionvars
The imshow()
function with parameters interpolation='nearest'
and cmap='hot'
should do what you want.
import matplotlib.pyplot as plt
import numpy as np
a = np.random.random((16, 16))
plt.imshow(a, cmap='hot', interpolation='nearest')
plt.show()
why not simplify it?
jquery
$('.clickable').on('click', function() {//on parent click
$(this).removeClass('spot').addClass('grown');//use remove/add Class here because it needs to perform the same action every time, you don't want a toggle
}).children('.close_button').on('click', function(e) {//on close click
e.stopPropagation();//stops click from triggering on parent
$(this).parent().toggleClass('spot grown');//since this only appears when .grown is present, toggling will work great instead of add/remove Class and save some space
});
This way it's much easier to maintain.
made a fiddle: http://jsfiddle.net/filever10/3SmaV/
<input type="text" name="firstname">
<input type="text" name="lastname">
<input type="text" name="email">
<input type="text" name="address">
<input type="text" name="tree[tree1][fruit]">
<input type="text" name="tree[tree1][height]">
<input type="text" name="tree[tree2][fruit]">
<input type="text" name="tree[tree2][height]">
<input type="text" name="tree[tree3][fruit]">
<input type="text" name="tree[tree3][height]">
it should end up like this in the $_POST[] array (PHP format for easy visualization)
$_POST[] = array(
'firstname'=>'value',
'lastname'=>'value',
'email'=>'value',
'address'=>'value',
'tree' => array(
'tree1'=>array(
'fruit'=>'value',
'height'=>'value'
),
'tree2'=>array(
'fruit'=>'value',
'height'=>'value'
),
'tree3'=>array(
'fruit'=>'value',
'height'=>'value'
)
)
)
<div class="container-div">
<div class="center-div">
</div>
</div>
.container-div {position:fixed; left: 0; bottom: 0; width: 100%; margin: 0;}
.center-div {width: 200px; margin: 0 auto;}
This should do the same.
Rather than search it in full Body. One could just use dynamic title option already available in such scenarios I think:
$btn.tooltip({
title: function(){
return $(this).attr('title');
}
});
It would be great if you use :hover
pseudo class over the onmouseover
event
td:hover
{
background-color:white
}
and for the default styling just use
td
{
background-color:black
}
As you want to use these styling not over all the td
elements then you need to specify the class to those elements and add styling to that class like this
.customTD
{
background-color:black
}
.customTD:hover
{
background-color:white;
}
You can also use :nth-child
selector to select the td elements
<p style="font-family: Arial; font-size:1.4em;color:gold;"> Golden </p>
or
Text <span style="font-family: Arial; font-size:1.4em;color:gold;"> Golden </p> Text
If you can't change the type of your input array the following will work:
final int[] data = new int[] { 5, 4, 2, 1, 3 };
final Integer[] sorted = ArrayUtils.toObject(data);
Arrays.sort(sorted, new Comparator<Integer>() {
public int compare(Integer o1, Integer o2) {
// Intentional: Reverse order for this demo
return o2.compareTo(o1);
}
});
System.arraycopy(ArrayUtils.toPrimitive(sorted), 0, data, 0, sorted.length);
This uses ArrayUtils
from the commons-lang project to easily convert between int[]
and Integer[]
, creates a copy of the array, does the sort, and then copies the sorted data over the original.
You can use the strong
element in html, which is great semantically (also good for screen readers etc.), which typically renders as bold text:
See here, some <strong>emphasized text</strong>.
_x000D_
Or you can use the font-weight
css property to style any element's text as bold:
span { font-weight: bold; }
_x000D_
<p>This is a paragraph of <span>bold text</span>.</p>
_x000D_
You can get all of the table data by using this query:
SHOW TABLE STATUS FROM `DatabaseName` WHERE `name` LIKE 'TableName' ;
You can get exactly this information by using this query:
SELECT `AUTO_INCREMENT`
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = 'DatabaseName'
AND TABLE_NAME = 'TableName';
Thanks all for your help! Finally I used JQuery/AJAX as you suggested, passing the parameter using model.
So, in JS:
$('#divPoints').load('/Schedule/UpdatePoints', UpdatePointsAction);
var points= $('#newpoints').val();
$element.find('PointsDiv').html("You have" + points+ " points");
In Controller:
var model = _newPoints;
return PartialView(model);
In View
<div id="divPoints"></div>
@Html.Hidden("newpoints", Model)
Try Jedi! There's a Vim plugin at https://github.com/davidhalter/jedi-vim.
It works just much better than anything else for Python in Vim. It even has support for renaming, goto, etc. The best part is probably that it really tries to understand your code (decorators, generators, etc. Just look at the feature list).
I removed the tag in the .project .
<buildCommand>
<name>org.eclipse.wst.jsdt.core.javascriptValidator</name>
<arguments>
</arguments>
</buildCommand>
It's worked very well for me.
source URL for image can be a URL on a website like http://www.google.co.il/images/srpr/nav_logo73.png or https://https.openbsd.org/images/tshirt-26_front.gif or if you want to use a local file try this: url("file:///MacintoshHDOriginal/Users/lowri/Desktop/acgnx/image s/images/acgn-site-background-X_07.jpg")
More precisely, you have to force the addition of the tag, then push with option --tags and -f:
git tag -f -a <tagname>
git push -f --tags
For Writing Excel
For Reading Excel
A new C++ Excel extension for PHP, though you'll need to build it yourself, and the docs are pretty sparse when it comes to trying to find out what functionality (I can't even find out from the site what formats it supports, or whether it reads or writes or both.... I'm guessing both) it offers is phpexcellib from SIMITGROUP.
All claim to be faster than PHPExcel from codeplex or from github, but (with the exception of COM, PUNO Ilia's wrapper around libXl and spout) they don't offer both reading and writing, or both xls and xlsx; may no longer be supported; and (while I haven't tested Ilia's extension) only COM and PUNO offers the same degree of control over the created workbook.
File -> Export -> Web -> WAR file
OR in Kepler follow as shown below :
Let me quote and comment more closely the RFC 7231 section 4.2.2, already cited in earlier comments :
A request method is considered "idempotent" if the intended effect on the server of multiple identical requests with that method is the same as the effect for a single such request. Of the request methods defined by this specification, PUT, DELETE, and safe request methods are idempotent.
(...)
Idempotent methods are distinguished because the request can be repeated automatically if a communication failure occurs before the client is able to read the server's response. For example, if a client sends a PUT request and the underlying connection is closed before any response is received, then the client can establish a new connection and retry the idempotent request. It knows that repeating the request will have the same intended effect, even if the original request succeeded, though the response might differ.
So, what should be "the same" after a repeated request of an idempotent method? Not the server state, nor the server response, but the intended effect. In particular, the method should be idempotent "from the point of view of the client". Now, I think that this point of view shows that the last example in Dan Lowe's answer, which I don't want to plagiarize here, indeed shows that a PATCH request can be non-idempotent (in a more natural way than the example in Jason Hoetger's answer).
Indeed, let's make the example slightly more precise by making explicit one possible intend for the first client. Let's say that this client goes through the list of users with the project to check their emails and zip codes. He starts with user 1, notices that the zip is right but the email is wrong. He decides to correct this with a PATCH request, which is fully legitimate, and sends only
PATCH /users/1
{"email": "[email protected]"}
since this is the only correction. Now, the request fails because of some network issue and is re-submitted automatically a couple of hours later. In the meanwhile, another client has (erroneously) modified the zip of user 1. Then, sending the same PATCH request a second time does not achieve the intended effect of the client, since we end up with an incorrect zip. Hence the method is not idempotent in the sense of the RFC.
If instead the client uses a PUT request to correct the email, sending to the server all properties of user 1 along with the email, his intended effect will be achieved even if the request has to be re-sent later and user 1 has been modified in the meanwhile --- since the second PUT request will overwrite all changes since the first request.
If it supports standard regex...
find:
^.*#RedirectMatch Permanent.*$
replace:
Replace with nothing.
For some reason, neither %autoreload
, nor dreload
seem to work for the situation when you import code from one notebook to another. Only plain Python reload
works:
reload(module)
Based on [1].
Android offers an implementation of an LRU Cache. The code is clean and straightforward.
If you want to recompile PHP
with mcrypt
enable.
1.
Insatll mcrypt
. libmcrypt-devel
is from Third Party Repositories EPEL, so you should:
yum --enablerepo=extras install epel-release
yum install libmcrypt-devel
2.
Append --with-mcrypt
to your ./configure
arguments:
./configure --with-mcrypt
3. Build and install:
make & make install
Nothing worked for me except, I loggined using pgAdmin4 and on the Dashboard I disconnected all connections except pgAdmin4 and then was able to rename by right lick on the database and properties and typed new name.
Demo link: https://github.com/RazvanSebastian/spring_multiple_log_files_demo.git
My solution is based on XML configuration using spring-boot-starter-log4j
. The example is a basic example using spring-boot-starter
and the two Loggers writes into different log files.
You may consider my solution the best. Most of answers are not compatible with old browsers like IE8 since e.preventDefault() wont be supported as well as ondragstart event. To do it cross browser compatible you have to block mousemove event for this image. See example below:
jQuery
$("#my_image").mousemove( function(e) { return false } ); // fix for IE
$("#my_image").attr("draggable", false); // disable dragging from attribute
without jQuery
var my_image = document.getElementById("my_image");
my_image.setAttribute("draggable", false);
if (my_image.addEventListener) {
my_image.addEventListener("mousemove", function(e) { return false });
} else if (my_image.attachEvent) {
my_image.attachEvent("onmousemove", function(e) { return false });
}
tested and worked even for IE8
If you are extracting information from window.location.href (the address bar), then use this code to get http://www.sitename.com/
:
var loc = location;
var url = loc.protocol + "//" + loc.host + "/";
If you have a string, str
, that is an arbitrary URL (not window.location.href), then use regular expressions:
var url = str.match(/^(([a-z]+:)?(\/\/)?[^\/]+\/).*$/)[1];
I, like everyone in the Universe, hate reading regular expressions, so I'll break it down in English:
No need to create DOM elements or do anything crazy.
Yet another option in python 3:
re.sub(f'[^{re.escape(string.printable)}]', '', my_string)
A POD is a type (including classes) where the C++ compiler guarantees that there will be no "magic" going on in the structure: for example hidden pointers to vtables, offsets that get applied to the address when it is cast to other types (at least if the target's POD too), constructors, or destructors. Roughly speaking, a type is a POD when the only things in it are built-in types and combinations of them. The result is something that "acts like" a C type.
int
, char
, wchar_t
, bool
, float
, double
are PODs, as are long/short
and signed/unsigned
versions of them.enums
are PODsconst
or volatile
POD is a POD.class
, struct
or union
of PODs is a POD provided that all non-static data members are public
, and it has no base class and no constructors, destructors, or virtual methods. Static members don't stop something being a POD under this rule. This rule has changed in C++11 and certain private members are allowed: Can a class with all private members be a POD class?3.9(10): "Arithmetic types (3.9.1), enumeration types, pointer types, and pointer to member types (3.9.2) and cv-qualified versions of these types (3.9.3) are collectively caller scalar types. Scalar types, POD-struct types, POD-union types (clause 9), arrays of such types and cv-qualified versions of these types (3.9.3) are collectively called POD types"
9(4): "A POD-struct is an aggregate class that has no non-static data members of type non-POD-struct, non-POD-union (or array of such types) or reference, and has no user-define copy operator and no user-defined destructor. Similarly a POD-union is an aggregate union that has no non-static data members of type non-POD-struct, non-POD-union (or array of such types) or reference, and has no user-define copy operator and no user-defined destructor.
8.5.1(1): "An aggregate is an array or class (clause 9) with no user-declared constructors (12.1), no private or protected non-static data members (clause 11), no base classes (clause 10) and no virtual functions (10.3)."
Go to Messages Gradle Sync, and Click on Install Repository and sync project. This is will install needed file in Android SDK and after syncing you will be able to create gradle or run your project.
You can also use WriteConsole method to print on console.
AllocConsole();
LPSTR lpBuff = "Hello Win32 API";
DWORD dwSize = 0;
WriteConsole(GetStdHandle(STD_OUTPUT_HANDLE), lpBuff, lstrlen(lpBuff), &dwSize, NULL);
A more appropriate approach is to specify a Locale region as a parameter in the constructor. The example below uses a US Locale region. Date formatting is locale-sensitive and uses the Locale to tailor information relative to the customs and conventions of the user's region Locale (Java Platform SE 7)
String timeStamp = new SimpleDateFormat("yyyy.MM.dd.HH.mm.ss", Locale.US).format(new Date());
As long as the object is actually a SkyfilterClient
, then a cast should work. Here is a contrived example to prove this:
using System;
class Program
{
static void Main()
{
NetworkClient net = new SkyfilterClient();
var sky = (SkyfilterClient)net;
}
}
public class NetworkClient{}
public class SkyfilterClient : NetworkClient{}
However, if it is actually a NetworkClient
, then you cannot magically make it become the subclass. Here is an example of that:
using System;
class Program
{
static void Main()
{
NetworkClient net = new NetworkClient();
var sky = (SkyfilterClient)net;
}
}
public class NetworkClient{}
public class SkyfilterClient : NetworkClient{}
HOWEVER, you could create a converter class. Here is an example of that, also:
using System;
class Program
{
static void Main()
{
NetworkClient net = new NetworkClient();
var sky = SkyFilterClient.CopyToSkyfilterClient(net);
}
}
public class NetworkClient
{
public int SomeVal {get;set;}
}
public class SkyfilterClient : NetworkClient
{
public int NewSomeVal {get;set;}
public static SkyfilterClient CopyToSkyfilterClient(NetworkClient networkClient)
{
return new SkyfilterClient{NewSomeVal = networkClient.SomeVal};
}
}
But, keep in mind that there is a reason you cannot convert this way. You may be missing key information that the subclass needs.
Finally, if you just want to see if the attempted cast will work, then you can use is
:
if(client is SkyfilterClient)
cast
If you already have the figure object use:
f.set_figheight(15)
f.set_figwidth(15)
But if you use the .subplots() command (as in the examples you're showing) to create a new figure you can also use:
f, axs = plt.subplots(2,2,figsize=(15,15))
Or, rather than having an extra event handler to prevent another handler, you can use the Event Object argument passed to your click event handler to determine whether a child was clicked. target
will be the clicked element and currentTarget
will be the .header div:
$(".header").click(function(e){
//Do nothing if .header was not directly clicked
if(e.target !== e.currentTarget) return;
$(this).children(".children").toggle();
});
This is the correct way for getting the correct output.... However, childs parent id maybe sometimes printed as 1 because parent process gets terminated and the root process with pid = 1 controls this orphan process.
pid_t pid;
pid = fork();
if (pid == 0)
printf("This is the child process. My pid is %d and my parent's id
is %d.\n", getpid(), getppid());
else
printf("This is the parent process. My pid is %d and my parent's
id is %d.\n", getpid(), pid);
I think when you see the phrase "core Java," they are talking about the basics of the language and maybe some knowledge of Java SE. I don't know why they would bother to put the "core" on there.
I would suggest:
#!/bin/bash
s1="hi"
s2="hi"
if [ $s1 = $s2 ]
then
echo match
fi
Without the double quotes and with only one equals.
If you are in Visual Code, Ctrl + Click on AppBar function.
Widget demoPage() {
AppBar appBar = AppBar(
title: Text('Demo'),
);
return Scaffold(
appBar: appBar,
body: /*
page body
*/,
);
}
And edit this piece.
app_bar.dart will open and you can find
preferredSize = new Size.fromHeight(kToolbarHeight + (bottom?.preferredSize?.height ?? 0.0)),
Difference of height!
The following line will start reading a number (%d
) followed by anything different from tabs or newlines (%[^\t\n]
).
sscanf("19 cool kid", "%d %[^\t\n]", &age, buffer);
In servers, you may like to send RST
instead of FIN
when disconnecting misbehaving clients. That skips FIN-WAIT
followed by TIME-WAIT
socket states in the server, which prevents from depleting server resources, and, hence, protects from this kind of denial-of-service attack.
If you have a very limited number of levels, you could try converting y
into factor and change its levels.
> xy <- data.frame(x = c(1, 2, 4), y = c(1, 4, 5))
> xy$w <- as.factor(xy$y)
> levels(xy$w) <- c("good", "fair", "bad")
> xy
x y w
1 1 1 good
2 2 4 fair
3 4 5 bad
Find a log4j.properties or log4j.xml online that has a root appender, and put it on your classpath.
### direct log messages to stdout ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.SimpleLayout
log4j.rootLogger=debug, stdout
will log to the console. I prefer logging to a file so you can investigate afterwards.
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.maxFileSize=100KB
log4j.appender.file.maxBackupIndex=5
log4j.appender.file.File=test.log
log4j.appender.file.threshold=debug
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
log4j.rootLogger=debug,file
although for verbose logging applications 100KB usually needs to be increased to 1MB or 10MB, especially for debug.
Personally I set up multiple loggers, and set the root logger to warn or error level instead of debug.
You can suffer from a thread race condition on this which there are documented examples of this being used as a security vulnerability. If you check that the file is available, but then try and use it you could throw at that point, which a malicious user could use to force and exploit in your code.
Your best bet is a try catch / finally which tries to get the file handle.
try
{
using (Stream stream = new FileStream("MyFilename.txt", FileMode.Open))
{
// File/Stream manipulating code here
}
} catch {
//check here why it failed and ask user to retry if the file is in use.
}
You are calling nextElement twice. Refactor like this:
while(e.hasMoreElements()){
String param = (String) e.nextElement();
System.out.println(param);
}
Use keyup
instead of keypress
. This gets all the key codes when the user presses something
It seems as if Android Studio is missing some features Eclipse has (which is surprising considering the choice to make Android Studio official IDE).
Eclipse had the ability to export zip files which could be sent over email for example. If you zip the folder from your workspace, and try to send it over Gmail for example, Gmail will refuse because the folder contains executable. Obviously you can delete files but that is inefficient if you do that frequently going back and forth from work.
Here's a solution though: You can use source control. Android Studio supports that. Your code will be stored online. A git will do the trick. Look under "VCS" in the top menu in Android Studio. It has many other benefits as well. One of the downsides though, is that if you use GitHub for free, your code is open source and everyone can see it.
If you don't know the column names and you want to specify str data type to all columns:
table = pd.read_excel("path_to_filename")
cols = table.columns
conv = dict(zip(cols ,[str] * len(cols)))
table = pd.read_excel("path_to_filename", converters=conv)
What happens is that the recursive call itself results in further recursive behaviour. If you were to write it out you get:
fact(4)
fact(3) * 4;
(fact(2) * 3) * 4;
((fact(1) * 2) * 3) * 4;
((1 * 2) * 3) * 4;
I have used the following code, and I am getting the right result...
<?php
function currentPageURL() {
$curpageURL = 'http';
if ($_SERVER["HTTPS"] == "on") {
$curpageURL.= "s";
}
$curpageURL.= "://";
if ($_SERVER["SERVER_PORT"] != "80") {
$curpageURL.= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
}
else {
$curpageURL.= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
}
return $curpageURL;
}
echo currentPageURL();
?>
import sys
import numpy
numpy.set_printoptions(threshold=sys.maxsize)
Short answer: It's just not worth it.
Longer answer: It's just not worth it, even if sequential element order and optimal performance aren't required.
Long answer: It's just not worth it...
for (var property in array)
will cause array
to be iterated over as an object, traversing the object prototype chain and ultimately performing slower than an index-based for
loop.for (... in ...)
is not guaranteed to return the object properties in sequential order, as one might expect.hasOwnProperty()
and !isNaN()
checks to filter the object properties is an additional overhead causing it to perform even slower and negates the key reason for using it in the first place, i.e. because of the more concise format.For these reasons an acceptable trade-off between performance and convenience doesn't even exist. There's really no benefit unless the intent is to handle the array as an object and perform operations on the object properties of the array.
This will also happen anytime a div ends up positioned over controls in another div; like using bootstrap for layout, and having a "col-lg-4" followed by a "col-lg=8" misspelling... the right orphaned/misnamed div covers the left, and captures the mouse events. Easy to blow by that misspelling, - and = next to each other on keyboard. So, pays to examine with inspector and look for 'surprises' to uncover these wild divs.
Is there an unseen window covering the controls and blocking events, and how can that happen? Turns out, fatfingering = for - with bootstrap classnames is one way...
You can try with the code that is below.
It will make the default date become the date you are looking for.
$('#birthdate').datepicker("setDate", new Date(1985,01,01) );
Well I have a few ideas, but I don't know if they are what your looking for.
You could use a service that holds all of the data and then just bind your activities to the service for data retrival.
Or package your data into a serializable or parcelable and attach them to a bundle and pass the bundle between activities.
This one may not be at all what your looking for, but you could also try using a SharedPreferences or a preference in general.
Either way let me know what you decide.
Use computeDistanceBetween() Google map API method to calculate near marker between your location and markers list on google map.
Steps:-
Create marker on google map.
function addMarker(location) {
var marker = new google.maps.Marker({
title: 'User added marker',
icon: {
path: google.maps.SymbolPath.BACKWARD_CLOSED_ARROW,
scale: 5
},
position: location,
map: map
});
}
On Mouse click create event for getting lat, long of your location and pass that to find_closest_marker().
function find_closest_marker(event) {
var distances = [];
var closest = -1;
for (i = 0; i < markers.length; i++) {
var d = google.maps.geometry.spherical.computeDistanceBetween(markers[i].position, event.latLng);
distances[i] = d;
if (closest == -1 || d < distances[closest]) {
closest = i;
}
}
alert('Closest marker is: ' + markers[closest].getTitle());
}
visit this link follow the steps. You will able to get nearer marker to your location.
It's probably not anywhere approaching a best practice, but I usually call a SIZE
on the collection to load the children in the same transaction, like you have suggested. It's clean, immune to any changes in the structure of the child elements, and yields SQL with low overhead.
This error could also be because you are not subscribing to the Observable.
Example, instead of:
this.products = this.productService.getProducts();
do this:
this.productService.getProducts().subscribe({
next: products=>this.products = products,
error: err=>this.errorMessage = err
});
I know this is so old, but i've landed on it , and the provided answers didn't works for me on powershell so after searching found this solution
to do it in powershell
Get-ChildItem -Path C:\Demo -Filter *.txt | Rename-Item -NewName {[System.IO.Path]::ChangeExtension($_.Name, ".old")}
credit goes to http://powershell-guru.com/powershell-tip-108-bulk-rename-extensions-of-files/
I had the same issue and none of the above answers solved the problem, so I tried something very straight-forward: I just putted in my strings.xml
\n\t
The complete String looks like this <string name="premium_features_listing_3">- Automatische Aktualisierung der\n\tDatenbank</string>
Results in:
Automatische Aktualisierung der
Datenbank
(with no extra line in between)
Maybe it will help others. Regards
When using SQL Express, you need to specify \SQLExpress instance in your connection string:
string str = "Data Source=HARIHARAN-PC\\SQLEXPRESS;Initial Catalog=master;Integrated Security=True" ;
You can't do it in a (This isn't quite true, as Sean points out in the comments. See note at the end.)switch
unless you're doing full string matching; that's doing substring matching.
If you're happy that your regex at the top is stripping away everything that you don't want to compare in your match, you don't need a substring match, and could do:
switch (base_url_string) {
case "xxx.local":
// Blah
break;
case "xxx.dev.yyy.com":
// Blah
break;
}
...but again, that only works if that's the complete string you're matching. It would fail if base_url_string
were, say, "yyy.xxx.local" whereas your current code would match that in the "xxx.local" branch.
Update: Okay, so technically you can use a switch
for substring matching, but I wouldn't recommend it in most situations. Here's how (live example):
function test(str) {
switch (true) {
case /xyz/.test(str):
display("• Matched 'xyz' test");
break;
case /test/.test(str):
display("• Matched 'test' test");
break;
case /ing/.test(str):
display("• Matched 'ing' test");
break;
default:
display("• Didn't match any test");
break;
}
}
That works because of the way JavaScript switch
statements work, in particular two key aspects: First, that the cases are considered in source text order, and second that the selector expressions (the bits after the keyword case
) are expressions that are evaluated as that case is evaluated (not constants as in some other languages). So since our test expression is true
, the first case
expression that results in true
will be the one that gets used.
I just discovered that you can also use "-d "
:
cut "-d "
$ cat a
hello how are you
I am fine
$ cut "-d " -f2 a
how
am
I have faced this error, Previous I had push in root directory, and now I have push another directory, so I could be remove this error and run below commands.
git add .
git commit -m "some comments"
git push --set-upstream origin master
Only because no one else has mentioned it:
>>> 'bob'.title()
'Bob'
>>> 'sandy'.title()
'Sandy'
>>> '1bob'.title()
'1Bob'
>>> '1sandy'.title()
'1Sandy'
However, this would also give
>>> '1bob sandy'.title()
'1Bob Sandy'
>>> '1JoeBob'.title()
'1Joebob'
i.e. it doesn't just capitalize the first alphabetic character. But then .capitalize()
has the same issue, at least in that 'joe Bob'.capitalize() == 'Joe bob'
, so meh.
Also an interesting topic on removal UTF-8 accent form a string converting char to their standard non-accentuated char:
What is the best way to remove accents in a python unicode string?
code extract from the topic:
import unicodedata
def remove_accents(input_str):
nkfd_form = unicodedata.normalize('NFKD', input_str)
return u"".join([c for c in nkfd_form if not unicodedata.combining(c)])
In addition to all the correct answers above, one other difference is that padding increases the clickable area of a view, whereas margins do not. This is useful if you have a smallish clickable image but want to make the click handler forgiving.
For eg, see this image of my layout with an ImageView
(the Android icon) where I set the paddingBotton
to be 100dp
(the image is the stock launcher mipmap ic_launcher
). With the attached click handler I was able to click way outside and below the image and still register a click.
This error is caused by a line of code in /usr/share/phpmyadmin/libraries/sql.lib.php.
It seems when I installed phpMyAdmin using apt, the version in the repository (phpMyAdmin v4.6.6) is not fully compatible with PHP 7.2. There is a newer version available on the official website (v4.8 as of writing), which fixes these compatibility issues with PHP 7.2.
You can download the latest version and install it manually or wait for the repositories to update with the newer version.
Alternatively, you can make a small change to sql.lib.php to fix the error.
Firstly, backup sql.lib.php before editing.
1-interminal:
sudo cp /usr/share/phpmyadmin/libraries/sql.lib.php /usr/share/phpmyadmin/libraries/sql.lib.php.bak
2-Edit sql.lib.php. Using vi:
sudo vi /usr/share/phpmyadmin/libraries/sql.lib.php
OR Using nano:
sudo nano /usr/share/phpmyadmin/libraries/sql.lib.php
Press CTRL + W (for nano) or ? (for vi/vim) and search for (count($analyzed_sql_results['select_expr'] == 1)
Replace it with ((count($analyzed_sql_results['select_expr']) == 1)
Save file and exit. (Press CTRL + X, press Y and then press ENTER for nano users / (for vi/vim) hit ESC then type :wq and press ENTER)
To check for duplicates you need to compare distinct pairs.
If the first segment doesn't start with /
it is a relative route. router.navigate
needs a relativeTo
parameter for relative navigation
Either you make the route absolute:
this.router.navigate(['/foo-content', 'bar-contents', 'baz-content', 'page'], this.params.queryParams)
or you pass relativeTo
this.router.navigate(['../foo-content', 'bar-contents', 'baz-content', 'page'], {queryParams: this.params.queryParams, relativeTo: this.currentActivatedRoute})
See also
var datos = $("#id_formulario").serialize();
$.ajax({
url: "url.php",
type: "POST",
dataType: "html",
data: datos,
success: function (prueba) {
alert("funciona!");
}//FIN SUCCES
});//FIN AJAX
Use this: this.$options._scopeId
- is the same identifier used in 'style scoped' section:
I wanted a one-liner that didn't download any files; here is an example of piping the cookie output into the next request. I only tested the following on Gentoo, but it should work in most *nix environments:
wget -q -O /dev/null --save-cookies /dev/stdout --post-data 'u=user&p=pass' 'http://example.com/login' | wget -q -O - --load-cookies /dev/stdin 'http://example.com/private/page'
(This is one line, though it likely wraps on your browser)
If you want the output saved to a file, change -O -
to -O /some/file/name.ext
Set the property RetainSameConnection
on the Connection Manager
to True
so that temporary table created in one Control Flow task can be retained in another task.
Here is a sample SSIS package written in SSIS 2008 R2
that illustrates using temporary tables.
Create a stored procedure that will create a temporary table named ##tmpStateProvince
and populate with few records. The sample SSIS package will first call the stored procedure and then will fetch the temporary table data to populate the records into another database table. The sample package will use the database named Sora
Use the below create stored procedure script.
USE Sora;
GO
CREATE PROCEDURE dbo.PopulateTempTable
AS
BEGIN
SET NOCOUNT ON;
IF OBJECT_ID('TempDB..##tmpStateProvince') IS NOT NULL
DROP TABLE ##tmpStateProvince;
CREATE TABLE ##tmpStateProvince
(
CountryCode nvarchar(3) NOT NULL
, StateCode nvarchar(3) NOT NULL
, Name nvarchar(30) NOT NULL
);
INSERT INTO ##tmpStateProvince
(CountryCode, StateCode, Name)
VALUES
('CA', 'AB', 'Alberta'),
('US', 'CA', 'California'),
('DE', 'HH', 'Hamburg'),
('FR', '86', 'Vienne'),
('AU', 'SA', 'South Australia'),
('VI', 'VI', 'Virgin Islands');
END
GO
Create a table named dbo.StateProvince
that will be used as the destination table to populate the records from temporary table. Use the below create table script to create the destination table.
USE Sora;
GO
CREATE TABLE dbo.StateProvince
(
StateProvinceID int IDENTITY(1,1) NOT NULL
, CountryCode nvarchar(3) NOT NULL
, StateCode nvarchar(3) NOT NULL
, Name nvarchar(30) NOT NULL
CONSTRAINT [PK_StateProvinceID] PRIMARY KEY CLUSTERED
([StateProvinceID] ASC)
) ON [PRIMARY];
GO
Create an SSIS package using Business Intelligence Development Studio (BIDS)
. Right-click on the Connection Managers tab at the bottom of the package and click New OLE DB Connection...
to create a new connection to access SQL Server 2008 R2 database.
Click New...
on Configure OLE DB Connection Manager.
Perform the following actions on the Connection Manager dialog.
Native OLE DB\SQL Server Native Client 10.0
from Provider since the package will connect to SQL Server 2008 R2 databaseMACHINENAME\INSTANCE
Use Windows Authentication
from Log on to the server section or whichever you prefer.Select or enter a database name
, the sample uses the database name Sora
.Test Connection
OK
on the Test connection succeeded message.OK
on Connection ManagerThe newly created data connection will appear on Configure OLE DB Connection Manager. Click OK
.
OLE DB connection manager KIWI\SQLSERVER2008R2.Sora
will appear under the Connection Manager tab at the bottom of the package. Right-click the connection manager and click Properties
Set the property RetainSameConnection
on the connection KIWI\SQLSERVER2008R2.Sora
to the value True
.
Right-click anywhere inside the package and then click Variables
to view the variables pane. Create the following variables.
A new variable named PopulateTempTable
of data type String
in the package scope SO_5631010
and set the variable with the value EXEC dbo.PopulateTempTable
.
A new variable named FetchTempData
of data type String
in the package scope SO_5631010
and set the variable with the value SELECT CountryCode, StateCode, Name FROM ##tmpStateProvince
Drag and drop an Execute SQL Task
on to the Control Flow tab. Double-click the Execute SQL Task to view the Execute SQL Task Editor.
On the General
page of the Execute SQL Task Editor, perform the following actions.
Create and populate temp table
OLE DB
KIWI\SQLSERVER2008R2.Sora
Variable
from SQLSourceTypeUser::PopulateTempTable
from SourceVariableOK
Drag and drop a Data Flow Task
onto the Control Flow tab. Rename the Data Flow Task as Transfer temp data to database table
. Connect the green arrow from the Execute SQL Task to the Data Flow Task.
Double-click the Data Flow Task
to switch to Data Flow tab. Drag and drop an OLE DB Source
onto the Data Flow tab. Double-click OLE DB Source to view the OLE DB Source Editor.
On the Connection Manager
page of the OLE DB Source Editor, perform the following actions.
KIWI\SQLSERVER2008R2.Sora
from OLE DB Connection ManagerSQL command from variable
from Data access modeUser::FetchTempData
from Variable nameColumns
pageClicking Columns
page on OLE DB Source Editor will display the following error because the table ##tmpStateProvince
specified in the source command variable does not exist and SSIS is unable to read the column definition.
To fix the error, execute the statement EXEC dbo.PopulateTempTable
using SQL Server Management Studio (SSMS) on the database Sora
so that the stored procedure will create the temporary table. After executing the stored procedure, click Columns
page on OLE DB Source Editor, you will see the column information. Click OK
.
Drag and drop OLE DB Destination
onto the Data Flow tab. Connect the green arrow from OLE DB Source to OLE DB Destination. Double-click OLE DB Destination
to open OLE DB Destination Editor.
On the Connection Manager
page of the OLE DB Destination Editor, perform the following actions.
KIWI\SQLSERVER2008R2.Sora
from OLE DB Connection ManagerTable or view - fast load
from Data access mode[dbo].[StateProvince]
from Name of the table or the viewMappings
pageClick Mappings
page on the OLE DB Destination Editor would automatically map the columns if the input and output column names are same. Click OK
. Column StateProvinceID
does not have a matching input column and it is defined as an IDENTITY
column in database. Hence, no mapping is required.
Data Flow tab should look something like this after configuring all the components.
Click the OLE DB Source
on Data Flow tab and press F4 to view Properties
. Set the property ValidateExternalMetadata
to False so that SSIS would not try to check for the existence of the temporary table during validation phase of the package execution.
Execute the query select * from dbo.StateProvince
in the SQL Server Management Studio (SSMS) to find the number of rows in the table. It should be empty before executing the package.
Execute the package. Control Flow shows successful execution.
In Data Flow tab, you will notice that the package successfully processed 6 rows. The stored procedure created early in this posted inserted 6 rows into the temporary table.
Execute the query select * from dbo.StateProvince
in the SQL Server Management Studio (SSMS) to find the 6 rows successfully inserted into the table. The data should match with rows founds in the stored procedure.
The above example illustrated how to create and use temporary table within a package.
Does not work if you have nulls.
You can get around this by modifying your select statement to plop something into nulls:
phonenumber = CASE
WHEN (isnull(phonenumber, '')='') THEN '(blank)'
ELSE phonenumber
END
Other answers already hit the target. I just want to add an illustration for a quick catch.
Another way is to use System.Threading.ManualResetEvent
dim SecondsToWait as integer = 5
Dim Waiter As New ManualResetEvent(False)
Waiter.WaitOne(SecondsToWait * 1000) 'to get it into milliseconds
Here's the script, rewritten to use the suggestions above and a change to your no-cache method.
<?php
// Simpler way of making sure all no-cache headers get sent
// and understood by all browsers, including IE.
session_cache_limiter('nocache');
header('Expires: ' . gmdate('r', 0));
header('Content-type: application/json');
// set to return response=error
$arr = array ('response'=>'error','comment'=>'test comment here');
echo json_encode($arr);
?>
//the script above returns this:
{"response":"error","comment":"test comment here"}
<script type="text/javascript">
$.ajax({
type: "POST",
url: "process.php",
data: dataString,
dataType: "json",
success: function (data) {
if (data.response == 'captcha') {
alert('captcha');
} else if (data.response == 'success') {
alert('success');
} else {
alert('sorry there was an error');
}
}
}); // Semi-colons after all declarations, IE is picky on these things.
</script>
The main issue here was that you had a typo in the JSON you were returning ("resonse" instead of "response". This meant that you were looking for the wrong property in the JavaScript code. One way of catching these problems in the future is to console.log
the value of data
and make sure the property you are looking for is there.
Learning how to use the Chrome debugger tools (or similar tools in Firefox/Safari/Opera/etc.) will also be invaluable.
DateValue(CStr(Now()))
That's the best I've found. If you have the date as a string already you can just do:
DateValue("12/04/2012 04:56:15")
or
DateValue(*DateStringHere*)
Hope this helps someone...
The Python name resolution only knows the following kinds of scope:
print
, int
, or zip
,def
block, lambda
expression or comprehension.def
block, lambda
expression or comprehension,class
block.Notably, other constructs such as if
, for
, or with
statements do not have their own scope.
The scoping TLDR: The lookup of a name begins at the scope in which the name is used, then any enclosing scopes (excluding class scopes), to the module globals, and finally the builtins – the first match in this search order is used.
The assignment to a scope is by default to the current scope – the special forms nonlocal
and global
must be used to assign to a name from an outer scope.
Finally, comprehensions and generator expressions as well as :=
asignment expressions have one special rule when combined.
These different scopes build a hierarchy, with builtins then global always forming the base, and closures, locals and class scope being nested as lexically defined. That is, only the nesting in the source code matters, not for example the call stack.
print("builtins are available without definition")
some_global = "1" # global variables are at module scope
def outer_function():
some_closure = "3.1" # locals and closure are defined the same, at function scope
some_local = "3.2" # a variable becomes a closure if a nested scope uses it
class InnerClass:
some_classvar = "3.3" # class variables exist *only* at class scope
def nested_function(self):
some_local = "3.2" # locals can replace outer names
print(some_closure) # closures are always readable
return InnerClass
Even though class
creates a scope and may have nested classes, functions and comprehensions, the names of the class
scope are not visible to enclosed scopes. This creates the following hierarchy:
? builtins [print, ...]
??? globals [some_global]
??? outer_function [some_local, some_closure]
??? InnerClass [some_classvar]
??? inner_function [some_local]
Name resolution always starts at the current scope in which a name is accessed, then goes up the hierarchy until a match is found. For example, looking up some_local
inside outer_function
and inner_function
starts at the respective function - and immediately finds the some_local
defined in outer_function
and inner_function
, respectively. When a name is not local, it is fetched from the nearest enclosing scope that defines it – looking up some_closure
and print
inside inner_function
searches until outer_function
and builtins, respectively.
By default, a name belongs to any scope in which it is bound to a value. Binding the same name again in an inner scope creates a new variable with the same name - for example, some_local
exists separately in both outer_function
and inner_function
. As far as scoping is concerned, binding includes any statement that sets the value of a name – assignment statements, but also the iteration variable of a for
loop, or the name of a with
context manager. Notably, del
also counts as name binding.
When a name must refer to an outer variable and be bound in an inner scope, the name must be declared as not local. Separate declarations exists for the different kinds of enclosing scopes: nonlocal
always refers to the nearest closure, and global
always refers to a global name. Notably, nonlocal
never refers to a global name and global
ignores all closures of the same name. There is no declaration to refer to the builtin scope.
some_global = "1"
def outer_function():
some_closure = "3.2"
some_global = "this is ignored by a nested global declaration"
def inner_function():
global some_global # declare variable from global scope
nonlocal some_closure # declare variable from enclosing scope
message = " bound by an inner scope"
some_global = some_global + message
some_closure = some_closure + message
return inner_function
Of note is that function local and nonlocal
are resolved at compile time. A nonlocal
name must exist in some outer scope. In contrast, a global
name can be defined dynamically and may be added or removed from the global scope at any time.
The scoping rules of list, set and dict comprehensions and generator expressions are almost the same as for functions. Likewise, the scoping rules for assignment expressions are almost the same as for regular name binding.
The scope of comprehensions and generator expressions is of the same kind as function scope. All names bound in the scope, namely the iteration variables, are locals or closures to the comprehensions/generator and nested scopes. All names, including iterables, are resolved using name resolution as applicable inside functions.
some_global = "global"
def outer_function():
some_closure = "closure"
return [ # new function-like scope started by comprehension
comp_local # names resolved using regular name resolution
for comp_local # iteration targets are local
in "iterable"
if comp_local in some_global and comp_local in some_global
]
An :=
assignment expression works on the nearest function, class or global scope. Notably, if the target of an assignment expression has been declared nonlocal
or global
in the nearest scope, the assignment expression honors this like a regular assignment.
print(some_global := "global")
def outer_function():
print(some_closure := "closure")
However, an assignment expression inside a comprehension/generator works on the nearest enclosing scope of the comprehension/generator, not the scope of the comprehension/generator itself. When several comprehensions/generators are nested, the nearest function or global scope is used. Since the comprehension/generator scope can read closures and global variables, the assignment variable is readable in the comprehension as well. Assigning from a comprehension to a class scope is not valid.
print(some_global := "global")
def outer_function():
print(some_closure := "closure")
steps = [
# v write to variable in containing scope
(some_closure := some_closure + comp_local)
# ^ read from variable in containing scope
for comp_local in some_global
]
return some_closure, steps
While the iteration variable is local to the comprehension in which it is bound, the target of the assignment expression does not create a local variable and is read from the outer scope:
? builtins [print, ...]
??? globals [some_global]
??? outer_function [some_closure]
??? <listcomp> [comp_local]
For Angular 7 users:
Here I show you that you can activate or deactivate a simple class attribute named "blurred" with just a boolean. Therefore u need to use [ngClass]
.
TS class
blurredStatus = true
HTML
<div class="inner-wrapper" [ngClass]="{'blurred':blurredStatus}"></div>
exit(0)
indicates that the program terminated without errors. exit(1)
indicates that there were an error.
You can use different values other than 1
to differentiate between different kind of errors.
Another solution (without a wrapper) would be to set the form to display: table
, which would make it act like a table so it would have the width of its largest child, and then apply margin: 0 auto
to center it.
form {
display: table;
margin: 0 auto;
}
Credit goes to: https://stackoverflow.com/a/49378738/7841955
Just use the -H
parameter several times:
curl -H "Accept-Charset: utf-8" -H "Content-Type: application/x-www-form-urlencoded" http://www.some-domain.com
As noted by several others, utilizing .concat()
generally provides fast solutions. Here is a simple recursive solution:
function zeroFill(len, a){_x000D_
return len <= (a || (a = [0])).length ?_x000D_
a.slice(0, len) :_x000D_
zeroFill(len, a.concat(a))_x000D_
}_x000D_
_x000D_
console.log(zeroFill(5));
_x000D_
And a general-purpose recursive array fill function:
function fill(len, v){_x000D_
return len <= (v = [].concat(v, v)).length ?_x000D_
v.slice(0, len) : fill(len, v)_x000D_
}_x000D_
_x000D_
console.log(fill(5, 'abc'));
_x000D_
Try This
$( "#email,#confirmEmail " ).on( "copy cut paste drop", function() {
return false;
});
You can use InitialCatalog Property or builder["Database"]
works as well. I tested it with different case and it still works.
We can update GTF answer to update timestamps easily
$data = array(
array(
'name'=>'Coder 1', 'rep'=>'4096',
'created_at'=>date('Y-m-d H:i:s'),
'modified_at'=> date('Y-m-d H:i:s')
),
array(
'name'=>'Coder 2', 'rep'=>'2048',
'created_at'=>date('Y-m-d H:i:s'),
'modified_at'=> date('Y-m-d H:i:s')
),
//...
);
Coder::insert($data);
Update: to simplify the date we can use carbon as @Pedro Moreira suggested
$now = Carbon::now('utc')->toDateTimeString();
$data = array(
array(
'name'=>'Coder 1', 'rep'=>'4096',
'created_at'=> $now,
'modified_at'=> $now
),
array(
'name'=>'Coder 2', 'rep'=>'2048',
'created_at'=> $now,
'modified_at'=> $now
),
//...
);
Coder::insert($data);
UPDATE2: for laravel 5 , use updated_at
instead of modified_at
$now = Carbon::now('utc')->toDateTimeString();
$data = array(
array(
'name'=>'Coder 1', 'rep'=>'4096',
'created_at'=> $now,
'updated_at'=> $now
),
array(
'name'=>'Coder 2', 'rep'=>'2048',
'created_at'=> $now,
'updated_at'=> $now
),
//...
);
Coder::insert($data);
I agree with Brainstorm's approach: assuming that you're passing a machine-friendly binary representation, use the encoding/binary
library. The OP suggests that binary.Write()
might have some overhead. Looking at the source for the implementation of Write()
, I see that it does some runtime decisions for maximum flexibility.
func Write(w io.Writer, order ByteOrder, data interface{}) error {
// Fast path for basic types.
var b [8]byte
var bs []byte
switch v := data.(type) {
case *int8:
bs = b[:1]
b[0] = byte(*v)
case int8:
bs = b[:1]
b[0] = byte(v)
case *uint8:
bs = b[:1]
b[0] = *v
...
Right? Write() takes in a very generic data
third argument, and that's imposing some overhead as the Go runtime then is forced into encoding type information. Since Write()
is doing some runtime decisions here that you simply don't need in your situation, maybe you can just directly call the encoding functions and see if it performs better.
Something like this:
package main
import (
"encoding/binary"
"fmt"
)
func main() {
bs := make([]byte, 4)
binary.LittleEndian.PutUint32(bs, 31415926)
fmt.Println(bs)
}
Let us know how this performs.
Otherwise, if you're just trying to get an ASCII representation of the integer, you can get the string representation (probably with strconv.Itoa
) and cast that string to the []byte
type.
package main
import (
"fmt"
"strconv"
)
func main() {
bs := []byte(strconv.Itoa(31415926))
fmt.Println(bs)
}
>
itself is very wonderful arrow! Just prepend a div with it and style it.
div{_x000D_
font-size:50px;_x000D_
}_x000D_
div::before{_x000D_
content:">";_x000D_
font: 50px 'Consolas';_x000D_
font-weight:900;_x000D_
}
_x000D_
<div class="arrowed">Hatz!</div>
_x000D_
So it was a problem of encoding. Iconv solves the problem
curl 'http://www.multitran.ru/c/m.exe?CL=1&s=hello&l1=1' | iconv -f windows-1251 | tr -dc '[:print:]' | ...
Please select the same in the outer select. You can't access the alias name in the same query.
SELECT *, (CASE
WHEN articleNumber < 2 THEN 'Ama'
WHEN articleNumber < 5 THEN 'SemiAma'
WHEN articleNumber < 7 THEN 'Good'
WHEN articleNumber < 9 THEN 'Better'
WHEN articleNumber < 12 THEN 'Best'
ELSE 'Outstanding'
END) AS ranking
FROM(
SELECT registrationDate, (SELECT COUNT(*) FROM Articles WHERE Articles.userId = Users.userId) as articleNumber,
hobbies, etc...
FROM USERS
)x
To summarize what was mentioned by Breno above
Say you have a variable with a path to a file
path = '/home/User/Desktop/myfile.py'
os.path.basename(path)
returns the string 'myfile.py'
and
os.path.dirname(path)
returns the string '/home/User/Desktop'
(without a trailing slash '/')
These functions are used when you have to get the filename/directory name given a full path name.
In case the file path is just the file name (e.g. instead of path = '/home/User/Desktop/myfile.py'
you just have myfile.py
), os.path.dirname(path)
returns an empty string.
Arrays in Java are of fixed size that is specified when they are declared. To increase the size of the array you have to create a new array with a larger size and copy all of the old values into the new array.
ex:
char[] copyFrom = { 'a', 'b', 'c', 'd', 'e' };
char[] copyTo = new char[7];
System.out.println(Arrays.toString(copyFrom));
System.arraycopy(copyFrom, 0, copyTo, 0, copyFrom.length);
System.out.println(Arrays.toString(copyTo));
Alternatively you could use a dynamic data structure like a List.
I also have the same problem then I got fixed by these two lines of code. Hope, it helps
systemctl start mongod
systemctl enable mongod
DateTime.Now
returns a value of data type Date
. Date variables display dates according to the short date format and time format set on your computer.
They may be formatted as a string for display in any valid date format by the Format
function as mentioned in aother answers
Format(DateTime.Now, "yyyy-MM-dd hh:mm:ss")
Float: left, display: inline-block will both fail to align the elements horizontally if they exceed the width of the container.
It's important to note that the container should not wrap if the elements MUST display horizontally:
white-space: nowrap
I was also interested in this and I've compared all the suggested answers with perfplot. (Disclaimer: I'm the author of perfplot.)
If you know that the array you're looking through is already sorted, then
numpy.searchsorted(a, alpha)
is for you. It's O(log(n)) operation, i.e., the speed hardly depends on the size of the array. You can't get faster than that.
If you don't know anything about your array, you're not going wrong with
numpy.argmax(a > alpha)
Already sorted:
Unsorted:
Code to reproduce the plot:
import numpy
import perfplot
alpha = 0.5
numpy.random.seed(0)
def argmax(data):
return numpy.argmax(data > alpha)
def where(data):
return numpy.where(data > alpha)[0][0]
def nonzero(data):
return numpy.nonzero(data > alpha)[0][0]
def searchsorted(data):
return numpy.searchsorted(data, alpha)
perfplot.save(
"out.png",
# setup=numpy.random.rand,
setup=lambda n: numpy.sort(numpy.random.rand(n)),
kernels=[argmax, where, nonzero, searchsorted],
n_range=[2 ** k for k in range(2, 23)],
xlabel="len(array)",
)
Solved by setting a password for the user first.
In terminal
sudo -u <username> psql
ALTER USER <username> PASSWORD 'SetPassword';
# ALTER ROLE
\q
In pgAdmin
**Connection**
Host name/address: 127.0.0.1
Port: 5432
Maintenance database: postgres
username: postgres
password: XXXXXX
There's always the HTML5 download
attribute :
This attribute, if present, indicates that the author intends the hyperlink to be used for downloading a resource so that when the user clicks on the link they will be prompted to save it as a local file.
If the attribute has a value, the value will be used as the pre-filled file name in the Save prompt that opens when the user clicks on the link.
var A = [['n','sqrt(n)']];
for(var j=1; j<10; ++j){
A.push([j, Math.sqrt(j)]);
}
var csvRows = [];
for(var i=0, l=A.length; i<l; ++i){
csvRows.push(A[i].join(','));
}
var csvString = csvRows.join("%0A");
var a = document.createElement('a');
a.href = 'data:attachment/csv,' + encodeURIComponent(csvString);
a.target = '_blank';
a.download = 'myFile.csv';
document.body.appendChild(a);
a.click();
Tested in Chrome and Firefox, works fine in the newest versions (as of July 2013).
Works in Opera as well, but does not set the filename (as of July 2013).
Does not seem to work in IE9 (big suprise) (as of July 2013).
An overview over what browsers support the download attribute can be found Here
For non-supporting browsers, one has to set the appropriate headers on the serverside.
Apparently there is a hack for IE10 and IE11, which doesn't support the download
attribute (Edge does however).
var A = [['n','sqrt(n)']];
for(var j=1; j<10; ++j){
A.push([j, Math.sqrt(j)]);
}
var csvRows = [];
for(var i=0, l=A.length; i<l; ++i){
csvRows.push(A[i].join(','));
}
var csvString = csvRows.join("%0A");
if (window.navigator.msSaveOrOpenBlob) {
var blob = new Blob([csvString]);
window.navigator.msSaveOrOpenBlob(blob, 'myFile.csv');
} else {
var a = document.createElement('a');
a.href = 'data:attachment/csv,' + encodeURIComponent(csvString);
a.target = '_blank';
a.download = 'myFile.csv';
document.body.appendChild(a);
a.click();
}
try:
a # does a exist in the current namespace
except NameError:
a = 10 # nope
Assuming that your current primary key constraint is called pk_history, you can replace the following lines:
ALTER TABLE history ADD PRIMARY KEY (id)
ALTER TABLE history
DROP CONSTRAINT userId
DROP CONSTRAINT name
with these:
ALTER TABLE history DROP CONSTRAINT pk_history
ALTER TABLE history ADD CONSTRAINT pk_history PRIMARY KEY (id)
If you don't know what the name of the PK is, you can find it with the following query:
SELECT *
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS
WHERE TABLE_NAME = 'history'
After reading this and troubleshooting the same issues, I agree that it is related to headings (h1 for sure, havent played with any others), also browser styles adding margins and paddings with clever rules that are hard to find and over-ride.
I have adapted a technique used to apply the box-sizing property properly to margins and paddings. the original article for box-sizing is located at CSS-Tricks :
html {
margin: 0;
padding: 0;
}
*, *:before, *:after {
margin: inherit;
padding: inherit;
}
So far it is exactly the trick for not using complex resets and makes applying a design much easier for myself anyways. Hope it helps.