I am seeing starkly different runtimes when I take a for loop in g++ 4.7.0 and using
std::vector<double> x;
std::vector<double> y;
std::vector<double> prod;
for (int i = 0; i < 5000000; i++)
{
double r1 = ((double)rand() / double(RAND_MAX)) * 5;
double r2 = ((double)rand() / double(RAND_MAX)) * 5;
x.push_back(r1);
y.push_back(r2);
}
int sz = x.size();
#pragma omp parallel for
for (int i = 0; i< sz; i++)
prod[i] = x[i] * y[i];
the serial code (no openmp
) runs in 79 ms.
the "parallel for" code runs in 29 ms.
If I omit the for
and use #pragma omp parallel
, the runtime shoots up to 179ms,
which is slower than serial code. (the machine has hw concurrency of 8)
the code links to libgomp
Besides calling omp_get_num_threads()
outside of the parallel region in your case, calling omp_set_num_threads()
still doesn't guarantee that the OpenMP runtime will use exactly the specified number of threads. omp_set_num_threads()
is used to override the value of the environment variable OMP_NUM_THREADS
and they both control the upper limit of the size of the thread team that OpenMP would spawn for all parallel regions (in the case of OMP_NUM_THREADS
) or for any consequent parallel region (after a call to omp_set_num_threads()
). There is something called dynamic teams that could still pick smaller number of threads if the run-time system deems it more appropriate. You can disable dynamic teams by calling omp_set_dynamic(0)
or by setting the environment variable OMP_DYNAMIC
to false
.
To enforce a given number of threads you should disable dynamic teams and specify the desired number of threads with either omp_set_num_threads()
:
omp_set_dynamic(0); // Explicitly disable dynamic teams
omp_set_num_threads(4); // Use 4 threads for all consecutive parallel regions
#pragma omp parallel ...
{
... 4 threads used here ...
}
or with the num_threads
OpenMP clause:
omp_set_dynamic(0); // Explicitly disable dynamic teams
// Spawn 4 threads for this parallel region only
#pragma omp parallel ... num_threads(4)
{
... 4 threads used here ...
}
The appref-ms file does not point to the exe. When you hit that shortcut, it invokes the deployment manifest at the deployment provider url and checks for updates. It checks the application manifest (yourapp.exe.manifest) to see what files to download, and this file contains the definition of the entry point (i.e. the exe).
I have some code in my game that displays live score. It is in a function for quick access.
def texts(score):
font=pygame.font.Font(None,30)
scoretext=font.render("Score:"+str(score), 1,(255,255,255))
screen.blit(scoretext, (500, 457))
and I call it using this in my while loop:
texts(score)
You shouldn't measure time in interval function. Instead just save time when timer was started and measure difference when timer was stopped/paused. Use setInterval only to update displayed value. So there is no need to pause timer and you will get best possible accuracy in this way.
Check out fontsquirrel. They have a web font generator, which will also spit out a suitable stylesheet for your font (look for "@font-face kit"). This stylesheet can be included in your own, or you can use it as a template.
Full validation example with javascript:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Radio button: full validation example with javascript</title>
<script>
function send() {
var genders = document.getElementsByName("gender");
if (genders[0].checked == true) {
alert("Your gender is male");
} else if (genders[1].checked == true) {
alert("Your gender is female");
} else {
// no checked
var msg = '<span style="color:red;">You must select your gender!</span><br /><br />';
document.getElementById('msg').innerHTML = msg;
return false;
}
return true;
}
function reset_msg() {
document.getElementById('msg').innerHTML = '';
}
</script>
</head>
<body>
<form action="" method="POST">
<label>Gender:</label>
<br />
<input type="radio" name="gender" value="m" onclick="reset_msg();" />Male
<br />
<input type="radio" name="gender" value="f" onclick="reset_msg();" />Female
<br />
<div id="msg"></div>
<input type="submit" value="send>>" onclick="return send();" />
</form>
</body>
</html>
Regards,
Fernando
Just a tip:
In Visual Studio to comment a text, you can highlight the text you want to comment, and then use Ctrl + K followed by Ctrl + C. To uncomment, you can use Ctrl + K followed by Ctrl + U.
There is a built in method which would be the fastest method also, calling tolist
on the .values
np array:
df.values.tolist()
[[0.0, 3.61, 380.0, 3.0],
[1.0, 3.67, 660.0, 3.0],
[1.0, 3.19, 640.0, 4.0],
[0.0, 2.93, 520.0, 4.0]]
It depends on what you are trying to do.
file, err := os.Open("file.txt")
fmt.print(file)
The reason it outputs &{0xc082016240}, is because you are printing the pointer value of a file-descriptor (*os.File
), not file-content. To obtain file-content, you may READ
from a file-descriptor.
To read all file content(in bytes) to memory, ioutil.ReadAll
package main
import (
"fmt"
"io/ioutil"
"os"
"log"
)
func main() {
file, err := os.Open("file.txt")
if err != nil {
log.Fatal(err)
}
defer func() {
if err = f.Close(); err != nil {
log.Fatal(err)
}
}()
b, err := ioutil.ReadAll(file)
fmt.Print(b)
}
But sometimes, if the file size is big, it might be more memory-efficient to just read in chunks: buffer-size, hence you could use the implementation of io.Reader.Read
from *os.File
func main() {
file, err := os.Open("file.txt")
if err != nil {
log.Fatal(err)
}
defer func() {
if err = f.Close(); err != nil {
log.Fatal(err)
}
}()
buf := make([]byte, 32*1024) // define your buffer size here.
for {
n, err := file.Read(buf)
if n > 0 {
fmt.Print(buf[:n]) // your read buffer.
}
if err == io.EOF {
break
}
if err != nil {
log.Printf("read %d bytes: %v", n, err)
break
}
}
}
Otherwise, you could also use the standard util package: bufio
, try Scanner
. A Scanner
reads your file in tokens: separator.
By default, scanner advances the token by newline (of course you can customise how scanner should tokenise your file, learn from here the bufio test).
package main
import (
"fmt"
"os"
"log"
"bufio"
)
func main() {
file, err := os.Open("file.txt")
if err != nil {
log.Fatal(err)
}
defer func() {
if err = f.Close(); err != nil {
log.Fatal(err)
}
}()
scanner := bufio.NewScanner(file)
for scanner.Scan() { // internally, it advances token based on sperator
fmt.Println(scanner.Text()) // token in unicode-char
fmt.Println(scanner.Bytes()) // token in bytes
}
}
Lastly, I would also like to reference you to this awesome site: go-lang file cheatsheet. It encompassed pretty much everything related to working with files in go-lang, hope you'll find it useful.
I'll assume that uninstall and reinstall Tomcat is not acceptable to you. The screen shot show basic auth challenge screen from browser and on the default app. So most likely you have set up users on the tomcat using the conf/tomcat-users.xml Try going through this guide https://tomcat.apache.org/tomcat-7.0-doc/realm-howto.html#UserDatabaseRealm
There are several other realms that you could have possibly used. Hopefully you will remember when you start reading the doc
Jeff Bridgman is correct. All you need is
background: url('pic.jpg')
and this assumes that pic is in the same folder as your html.
Also, Roberto's answer works fine. Tested in Firefox, and IE. Thanks to Raptor for adding formatting that displays full picture fit to screen, and without scrollbars... In a folder f, on the desktop is this html and a picture, pic.jpg, using your userid. Make those substitutions in the below:
<html>
<head>
<style>
body {
background: url('file:///C:/Users/userid/desktop/f/pic.jpg') no-repeat center center fixed;
background-size: cover; /* for IE9+, Safari 4.1+, Chrome 3.0+, Firefox 3.6+ */
-webkit-background-size: cover; /* for Safari 3.0 - 4.0 , Chrome 1.0 - 3.0 */
-moz-background-size: cover; /* optional for Firefox 3.6 */
-o-background-size: cover; /* for Opera 9.5 */
margin: 0; /* to remove the default white margin of body */
padding: 0; /* to remove the default white margin of body */
overflow: hidden;
}
</style>
</head>
<body>
hello
</body>
</html>
In addition to the excellent answers, I would like to emphasize here when to use res.end() and when to use res.send() this was why I originally landed here and I didn't found a solution.
The answer is really simple
res.end() is used to quickly end the response without sending any data.
An example for this would be starting a process on a server
app.get(/start-service, (req, res) => {
// Some logic here
exec('./application'); // dummy code
res.end();
});
If you would like to send data in your response then you should use res.send() instead
app.get(/start-service, (req, res) => {
res.send('{"age":22}');
});
Here you can read more
I think you can just cast to ObjectNode and use put
method. Like this
ObjectNode o = (ObjectNode) jsonNode;
o.put("value", "NO");
This can be solved in O(n^2) using Dynamic Programming. Python code for the same would be like:-
def LIS(numlist):
LS = [1]
for i in range(1, len(numlist)):
LS.append(1)
for j in range(0, i):
if numlist[i] > numlist[j] and LS[i]<=LS[j]:
LS[i] = 1 + LS[j]
print LS
return max(LS)
numlist = map(int, raw_input().split(' '))
print LIS(numlist)
For input:5 19 5 81 50 28 29 1 83 23
output would be:[1, 2, 1, 3, 3, 3, 4, 1, 5, 3]
5
The list_index of output list is the list_index of input list. The value at a given list_index in output list denotes the Longest increasing subsequence length for that list_index.
The final outcome of the conversion is that the number of elements in the final array is same as that of the initial array or data frame.
-1 corresponds to the unknown count of the row or column.
We can think of it as x
(unknown). x
is obtained by dividing the number of elements in the original array by the other value of the ordered pair with -1.
Examples:
12 elements with reshape(-1,1)
corresponds to an array with x
=12/1=12 rows and 1 column.
12 elements with reshape(1,-1)
corresponds to an array with 1 row and x
=12/1=12 columns.
Try This:
var info = document.getElementById("area1").value; // Javascript
var info = $("#area1").val(); // jQuery
Short example:
if (typeof(arr[key]) === "undefined") {
arr.push(key);
}
A simple quick-and-dirty implementation of @Aaron answer:
document.body.innerHTML += '<form id="dynForm" action="http://example.com/" method="post"><input type="hidden" name="q" value="a"></form>';
document.getElementById("dynForm").submit();
Of course, you should rather use a JavaScript framework such as Prototype or jQuery...
Some addition to JoshRiver's answer according to my case;
var functionCallbacks = [];
var functionLock = false;
var getData = function (url, callback) {
if (functionLock) {
functionCallbacks.push(callback);
} else {
functionLock = true;
functionCallbacks.push(callback);
$.getJSON(url, function (data) {
while (functionCallbacks.length) {
var thisCallback = functionCallbacks.pop();
thisCallback(data);
}
functionLock = false;
});
}
};
// Usage
getData("api/orders",function(data){
barChart(data);
});
getData("api/orders",function(data){
lineChart(data);
});
There will be just one api call and these two function will consume same result.
$.cookie("test", 1); //set cookie
$.cookie("test"); //get cookie
$.cookie('test', null); //delete cookie
I have a problem with merged_cells and autosize not work correctly, if you have the same problem, you can solve with the next code:
for col in worksheet.columns:
max_length = 0
column = col[0].column # Get the column name
for cell in col:
if cell.coordinate in worksheet.merged_cells: # not check merge_cells
continue
try: # Necessary to avoid error on empty cells
if len(str(cell.value)) > max_length:
max_length = len(cell.value)
except:
pass
adjusted_width = (max_length + 2) * 1.2
worksheet.column_dimensions[column].width = adjusted_width
var newDate = new Date();
newDate.setTime(unixtime*1000);
dateString = newDate.toUTCString();
Where unixtime
is the time returned by your sql db. Here is a fiddle if it helps.
For example, using it for the current time:
document.write( new Date().toUTCString() );
_x000D_
A queue implemented using 2 stacks is pretty space efficient (as opposed to using a linked list which will have at least a 1 extra pointer/reference overhead).
How to implement a queue using two stacks?
This has worked well for me when the queues are huge. If I save 8 bytes on a pointer, it means that queues with a million entries save about 8MB of RAM.
The auto keyword gets the type from the expression on the right of =. Therefore it will work with any type, the only requirement is to initialize the auto variable when declaring it so that the compiler can deduce the type.
Examples:
auto a = 0.0f; // a is float
auto b = std::vector<int>(); // b is std::vector<int>()
MyType foo() { return MyType(); }
auto c = foo(); // c is MyType
If you are asking if you can pair two devices without the user EVER approving the pairing, no it cannot be done, it is a security feature. If you are paired over Bluetooth there is no need to exchange data over NFC, just exchange data over the Bluetooth link.
I don't think you can circumvent Bluetooth security by passing an authentication packet over NFC, but I could be wrong.
What I ended up doing is something like this:
In the controller:
link: function($scope, $element, $attr) {
$scope.scope = $scope; // or $scope.$parent, as needed
$scope.field = $attr.field = '_suffix';
$scope.subfield = $attr.sub_node;
...
so in the templates I could use totally dynamic names, and not just under a certain hard-coded element (like in your "Answers" case):
<textarea ng-model="scope[field][subfield]"></textarea>
Hope this helps.
How host name verification should be done is defined in RFC 6125, which is quite recent and generalises the practice to all protocols, and replaces RFC 2818, which was specific to HTTPS. (I'm not even sure Java 7 uses RFC 6125, which might be too recent for this.)
From RFC 2818 (Section 3.1):
If a subjectAltName extension of type dNSName is present, that MUST be used as the identity. Otherwise, the (most specific) Common Name field in the Subject field of the certificate MUST be used. Although the use of the Common Name is existing practice, it is deprecated and Certification Authorities are encouraged to use the dNSName instead.
[...]
In some cases, the URI is specified as an IP address rather than a hostname. In this case, the iPAddress subjectAltName must be present in the certificate and must exactly match the IP in the URI.
Essentially, the specific problem you have comes from the fact that you're using IP addresses in your CN and not a host name. Some browsers might work because not all tools follow this specification strictly, in particular because "most specific" in RFC 2818 isn't clearly defined (see discussions in RFC 6215).
If you're using keytool
, as of Java 7, keytool
has an option to include a Subject Alternative Name (see the table in the documentation for -ext
): you could use -ext san=dns:www.example.com
or -ext san=ip:10.0.0.1
.
EDIT:
You can request a SAN in OpenSSL by changing openssl.cnf
(it will pick the copy in the current directory if you don't want to edit the global configuration, as far as I remember, or you can choose an explicit location using the OPENSSL_CONF
environment variable).
Set the following options (find the appropriate sections within brackets first):
[req]
req_extensions = v3_req
[ v3_req ]
subjectAltName=IP:10.0.0.1
# or subjectAltName=DNS:www.example.com
There's also a nice trick to use an environment variable for this (rather in than fixing it in a configuration file) here: http://www.crsr.net/Notes/SSL.html
I started out with Johannes Farhenkrug's answer here and it worked great for me. I needed to mock the requests library because my goal is to isolate my application and not test any 3rd party resources.
Then I read up some more about python's Mock library and I realized that I can replace the MockResponse class, which you might call a 'Test Double' or a 'Fake', with a python Mock class.
The advantage of doing so is access to things like assert_called_with
, call_args
and so on. No extra libraries are needed. Additional benefits such as 'readability' or 'its more pythonic' are subjective, so they may or may not play a role for you.
Here is my version, updated with using python's Mock instead of a test double:
import json
import requests
from unittest import mock
# defube stubs
AUTH_TOKEN = '{"prop": "value"}'
LIST_OF_WIDGETS = '{"widgets": ["widget1", "widget2"]}'
PURCHASED_WIDGETS = '{"widgets": ["purchased_widget"]}'
# exception class when an unknown URL is mocked
class MockNotSupported(Exception):
pass
# factory method that cranks out the Mocks
def mock_requests_factory(response_stub: str, status_code: int = 200):
return mock.Mock(**{
'json.return_value': json.loads(response_stub),
'text.return_value': response_stub,
'status_code': status_code,
'ok': status_code == 200
})
# side effect mock function
def mock_requests_post(*args, **kwargs):
if args[0].endswith('/api/v1/get_auth_token'):
return mock_requests_factory(AUTH_TOKEN)
elif args[0].endswith('/api/v1/get_widgets'):
return mock_requests_factory(LIST_OF_WIDGETS)
elif args[0].endswith('/api/v1/purchased_widgets'):
return mock_requests_factory(PURCHASED_WIDGETS)
raise MockNotSupported
# patch requests.post and run tests
with mock.patch('requests.post') as requests_post_mock:
requests_post_mock.side_effect = mock_requests_post
response = requests.post('https://myserver/api/v1/get_widgets')
assert response.ok is True
assert response.status_code == 200
assert 'widgets' in response.json()
# now I can also do this
requests_post_mock.assert_called_with('https://myserver/api/v1/get_widgets')
Repl.it links:
https://repl.it/@abkonsta/Using-unittestMock-for-requestspost#main.py
https://repl.it/@abkonsta/Using-test-double-for-requestspost#main.py
http://asktom.oracle.com/tkyte/Misc/DateDiff.html - link dead as of 2012-01-30
Looks like this is the resource:
http://asktom.oracle.com/pls/asktom/ASKTOM.download_file?p_file=6551242712657900129
(Google search brought me to this question even though I did not ask for perl)
I had a problem with running scripts (albeit bash not perl). Apache had a config of ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
however Apache error log showed File does not exist: /var/www/cgi-bin/test.html
.
Tried putting the script in both /usr/lib/cgi-bin/
and /var/www/cgi-bin/
but neither were working.
After a prolonged googling session what cracked it for me was
sudo a2enmod cgi
and everything fell into place using /usr/lib/cgi-bin/
.
In addition to other answers, I would like to add one image for it(pic makes easy to understand)
static
variables may be cached for individual threads. In multi-threaded environment if one thread modifies its cached data, that may not reflect for other threads as they have a copy of it.
volatile
declaration makes sure that threads won't cache the data and uses the shared copy only.
$ split -l 100 input_file output_file
where -l
is the number of lines in each files. This will create:
Two entries in an array can't share a key, you'll need to change the key for the duplicate
I use a very old java. Jdk 1.4.08 and I had the same issue. The Node
class for me did not had the getTextContent()
method. I had to use Node.getFirstChild().getNodeValue()
instead of Node.getNodeValue()
to get the value of the node. This fixed for me.
<c:choose>
<c:when test="${not empty userid and userid ne null}">
<sql:query dataSource="${dbsource}" var="usersql">
SELECT * FROM newuser WHERE ID = ?;
<sql:param value="${param.userid}" />
</sql:query>
</c:when>
<c:otherwise >
<sql:query dataSource="${dbsource}" var="usersql">
SELECT * FROM newuser WHERE username = ?;
<sql:param value="${param.username}" />
</sql:query>
</c:otherwise>
You don't say what shell you are using, but they generally don't support regular expressions that way, although there are common *nix CLI tools (grep
, sed
, etc) that do.
What shells like bash do support is globbing, which uses some similiar characters (eg, *) but is not the same thing.
Newer versions of bash do have a regular expression operator, =~
:
for x in `ls`; do
if [[ $x =~ .+\..* ]]; then
echo $x;
fi;
done
The marked answer here did not solve my issue, possibly different angular versions. I was able to achieve the desired outcome with the following angular cli
command in terminal / shell:
ng build --base-href /myUrl/
ng build --bh /myUrl/
or ng build --prod --bh /myUrl/
This changes the <base href="/">
to <base href="/myUrl/">
in the built version only which was perfect for our change in environment between development and production. The best part was no code base requires changing using this method.
index.html
base href as: <base href="/">
then run ng build --bh ./
with angular cli to make it a relative path, or replace the ./
with whatever you require.
As the example above shows how to do it from command line, here is how to add it to your angular.json configuration file.
This will be used for all ng serving
for local development
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"baseHref": "/testurl/",
This is the config specific for configuration builds such as prod:
"configurations": {
"Prod": {
"fileReplacements": [
{
"replace": src/environments/environment.ts",
"with": src/environments/environment.prod.ts"
}
],
"baseHref": "./productionurl/",
The official angular-cli
documentation referring to usage.
The following is the correct overload (in your example you are missing a closing }
to the routeValues
anonymous object so your code will throw an exception):
<a href="<%: Url.Action("GetByList", "Listing", new { name = "John", contact = "calgary, vancouver" }) %>">
<span>People</span>
</a>
Assuming you are using the default routes this should generate the following markup:
<a href="/Listing/GetByList?name=John&contact=calgary%2C%20vancouver">
<span>People</span>
</a>
which will successfully invoke the GetByList
controller action passing the two parameters:
public ActionResult GetByList(string name, string contact)
{
...
}
you need to parse your xml with jquery json parse...i.e
var parsed_json = $.parseJSON(xml);
You're trying to write more data than a specific column can store. Check the sizes of the data you're trying to insert against the sizes of each of the fields.
In this case transaction_status is a varchar(10) and you're trying to store 19 characters to it.
I was hitting this error when passing an NSURLRequest to an NSURLSession without setting the request's HTTPMethod.
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:urlComponents.URL];
Error Domain=NSURLErrorDomain Code=-1005 "The network connection was lost."
Add the HTTPMethod
, though, and the connection works fine
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:urlComponents.URL];
[request setHTTPMethod:@"PUT"];
A safer way to approach breaking a foreach
or while
loop in PHP is to nest an incrementing counter variable and if
conditional inside of the original loop. This gives you tighter control than break;
which can cause havoc elsewhere on a complicated page.
Example:
// Setup a counter
$ImageCounter = 0;
// Increment through repeater fields
while ( condition ):
$ImageCounter++;
// Only print the first while instance
if ($ImageCounter == 1) {
echo 'It worked just once';
}
// Close while statement
endwhile;
Just insert $this->load->database();
in your model:
function order_summary_insert($data){
$this->load->database();
$this->db->insert('Customer_Orders',$data);
}
Better still (or shorter anyway):
SUM(ccc_news_comments.id = 'approved')
This works since the Boolean type in MySQL is represented as INT
0
and 1
, just like in C. (May not be portable across DB systems though.)
As for COALESCE()
as mentioned in other answers, many language APIs automatically convert NULL
to ''
when fetching the value. For example with PHP's mysqli
interface it would be safe to run your query without COALESCE()
.
Alternatively, in plain text: (also available as a a screenshot)
Bracket Matching -. .- Line Numbering
Smart Indent -. | | .- UML Editing / Viewing
Source Control Integration -. | | | | .- Code Folding
Error Markup -. | | | | | | .- Code Templates
Integrated Python Debugging -. | | | | | | | | .- Unit Testing
Multi-Language Support -. | | | | | | | | | | .- GUI Designer (Qt, Eric, etc)
Auto Code Completion -. | | | | | | | | | | | | .- Integrated DB Support
Commercial/Free -. | | | | | | | | | | | | | | .- Refactoring
Cross Platform -. | | | | | | | | | | | | | | | |
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
Atom |Y |F |Y |Y*|Y |Y |Y |Y |Y |Y | |Y |Y | | | | |*many plugins
Editra |Y |F |Y |Y | | |Y |Y |Y |Y | |Y | | | | | |
Emacs |Y |F |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y | | | |
Eric Ide |Y |F |Y | |Y |Y | |Y | |Y | |Y | |Y | | | |
Geany |Y |F |Y*|Y | | | |Y |Y |Y | |Y | | | | | |*very limited
Gedit |Y |F |Y¹|Y | | | |Y |Y |Y | | |Y²| | | | |¹with plugin; ²sort of
Idle |Y |F |Y | |Y | | |Y |Y | | | | | | | | |
IntelliJ |Y |CF|Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |
JEdit |Y |F | |Y | | | | |Y |Y | |Y | | | | | |
KDevelop |Y |F |Y*|Y | | |Y |Y |Y |Y | |Y | | | | | |*no type inference
Komodo |Y |CF|Y |Y |Y |Y |Y |Y |Y |Y | |Y |Y |Y | |Y | |
NetBeans* |Y |F |Y |Y |Y | |Y |Y |Y |Y |Y |Y |Y |Y | | |Y |*pre-v7.0
Notepad++ |W |F |Y |Y | |Y*|Y*|Y*|Y |Y | |Y |Y*| | | | |*with plugin
Pfaide |W |C |Y |Y | | | |Y |Y |Y | |Y |Y | | | | |
PIDA |LW|F |Y |Y | | | |Y |Y |Y | |Y | | | | | |VIM based
PTVS |W |F |Y |Y |Y |Y |Y |Y |Y |Y | |Y | | |Y*| |Y |*WPF bsed
PyCharm |Y |CF|Y |Y*|Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |*JavaScript
PyDev (Eclipse) |Y |F |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y | | | |
PyScripter |W |F |Y | |Y |Y | |Y |Y |Y | |Y |Y |Y | | | |
PythonWin |W |F |Y | |Y | | |Y |Y | | |Y | | | | | |
SciTE |Y |F¹| |Y | |Y | |Y |Y |Y | |Y |Y | | | | |¹Mac version is
ScriptDev |W |C |Y |Y |Y |Y | |Y |Y |Y | |Y |Y | | | | | commercial
Spyder |Y |F |Y | |Y |Y | |Y |Y |Y | | | | | | | |
Sublime Text |Y |CF|Y |Y | |Y |Y |Y |Y |Y | |Y |Y |Y*| | | |extensible w/Python,
TextMate |M |F | |Y | | |Y |Y |Y |Y | |Y |Y | | | | | *PythonTestRunner
UliPad |Y |F |Y |Y |Y | | |Y |Y | | | |Y |Y | | | |
Vim |Y |F |Y |Y |Y |Y |Y |Y |Y |Y | |Y |Y |Y | | | |
Visual Studio |W |CF|Y |Y |Y |Y |Y |Y |Y |Y |? |Y |? |? |Y |? |Y |
Visual Studio Code|Y |F |Y |Y |Y |Y |Y |Y |Y |Y |? |Y |? |? |? |? |Y |uses plugins
WingIde |Y |C |Y |Y*|Y |Y |Y |Y |Y |Y | |Y |Y |Y | | | |*support for C
Zeus |W |C | | | | |Y |Y |Y |Y | |Y |Y | | | | |
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
Cross Platform -' | | | | | | | | | | | | | | | |
Commercial/Free -' | | | | | | | | | | | | | | '- Refactoring
Auto Code Completion -' | | | | | | | | | | | | '- Integrated DB Support
Multi-Language Support -' | | | | | | | | | | '- GUI Designer (Qt, Eric, etc)
Integrated Python Debugging -' | | | | | | | | '- Unit Testing
Error Markup -' | | | | | | '- Code Templates
Source Control Integration -' | | | | '- Code Folding
Smart Indent -' | | '- UML Editing / Viewing
Bracket Matching -' '- Line Numbering
Acronyms used:
L - Linux
W - Windows
M - Mac
C - Commercial
F - Free
CF - Commercial with Free limited edition
? - To be confirmed
I don't mention basics like syntax highlighting as I expect these by default.
This is a just dry list reflecting your feedback and comments, I am not advocating any of these tools. I will keep updating this list as you keep posting your answers.
PS. Can you help me to add features of the above editors to the list (like auto-complete, debugging, etc.)?
We have a comprehensive wiki page for this question https://wiki.python.org/moin/IntegratedDevelopmentEnvironments
Found this answer here and wanted to reference it as it appear much cleaner than the accepted answer:
function blobToDataURL(blob, callback) {
var fileReader = new FileReader();
fileReader.onload = function(e) {callback(e.target.result);}
fileReader.readAsDataURL(blob);
}
If you want the result in the same format as your desired output you can try:
for file in `ls file{1..3}.txt`; \
do echo $file | cut -d '.' -f 1; \
cat $file ; done;
Result:
file1
bluemoongoodbeer
file2
awesomepossum
file3
hownowbrowncow
You can put echo -e
before and after the cut so you have the spacing between the lines as well:
$ for file in `ls file{1..3}.txt`; do echo $file | cut -d '.' -f 1; echo -e; cat $file; echo -e ; done;
Result:
file1
bluemoongoodbeer
file2
awesomepossum
file3
hownowbrowncow
add name attribute to your md-input. if it doesn't solve the problem, please post your template
I have used RxPY which has some nice threading functions to solve this in a fairly clean manner. No queues, and I have provided a function that runs on the main thread after completion of the background thread. Here is a working example:
import rx
from rx.scheduler import ThreadPoolScheduler
import time
import tkinter as tk
class UI:
def __init__(self):
self.root = tk.Tk()
self.pool_scheduler = ThreadPoolScheduler(1) # thread pool with 1 worker thread
self.button = tk.Button(text="Do Task", command=self.do_task).pack()
def do_task(self):
rx.empty().subscribe(
on_completed=self.long_running_task,
scheduler=self.pool_scheduler
)
def long_running_task(self):
# your long running task here... eg:
time.sleep(3)
# if you want a callback on the main thread:
self.root.after(5, self.on_task_complete)
def on_task_complete(self):
pass # runs on main thread
if __name__ == "__main__":
ui = UI()
ui.root.mainloop()
Another way to use this construct which might be cleaner (depending on preference):
tk.Button(text="Do Task", command=self.button_clicked).pack()
...
def button_clicked(self):
def do_task(_):
time.sleep(3) # runs on background thread
def on_task_done():
pass # runs on main thread
rx.just(1).subscribe(
on_next=do_task,
on_completed=lambda: self.root.after(5, on_task_done),
scheduler=self.pool_scheduler
)
You can use it to raise errors as part of error-checking:
if (a < b):
raise ValueError()
Or handle some errors, and then pass them on as part of error-handling:
try:
f = open('file.txt', 'r')
except IOError:
# do some processing here
# and then pass the error on
raise
Try something like this I know I am late for the answer but this obvious thing happened in java8 a new version from where this question is asked but..
The code
import java.io.File;
public class Find_this_dir {
public static void main(String[] args) {
//some sort of a bug in java path is correct but file dose not exist
File this_dir = new File("");
//but these both commands work too to get current dir
// File this_dir_2 = new File(this_dir.getAbsolutePath());
File this_dir_2 = new File(new File("").getAbsolutePath());
System.out.println("new File(" + "\"\"" + ")");
System.out.println(this_dir.getAbsolutePath());
System.out.println(this_dir.exists());
System.out.println("");
System.out.println("new File(" + "new File(" + "\"\"" + ").getAbsolutePath()" + ")");
System.out.println(this_dir_2.getAbsolutePath());
System.out.println(this_dir_2.exists());
}
}
This will work and show you the current path but I don't now why java fails to find current dir in new File("");
besides I am using Java8 compiler...
This works just fine I even tested it new File(new File("").getAbsolutePath());
Now you have current directory in a File object so (Example file object is f then),
f.getAbsolutePath()
will give you the path in a String varaible type...
Tested in another directory that is not drive C works fine
I suppose there is some conflict with other JS library in your code. Try to force showing the close button:
...
open:function () {
$(".ui-dialog-titlebar-close").show();
}
...
This worked for me.
Try this function...
function calculate_age(birth_month,birth_day,birth_year)
{
today_date = new Date();
today_year = today_date.getFullYear();
today_month = today_date.getMonth();
today_day = today_date.getDate();
age = today_year - birth_year;
if ( today_month < (birth_month - 1))
{
age--;
}
if (((birth_month - 1) == today_month) && (today_day < birth_day))
{
age--;
}
return age;
}
OR
function getAge(dateString)
{
var today = new Date();
var birthDate = new Date(dateString);
var age = today.getFullYear() - birthDate.getFullYear();
var m = today.getMonth() - birthDate.getMonth();
if (m < 0 || (m === 0 && today.getDate() < birthDate.getDate()))
{
age--;
}
return age;
}
I also had the problem i just installed but forgot to jump the created project folder. So you need to jump your project folder.
cd project_name
and then serve php artisan command
Chris Nielsen's solution is simple and will work well. A slightly shorter option would be...
ws.Rows(Rand).Delete
...note there is no need to specify a Shift when deleting a row as, by definition, it's not possible to shift left
Incidentally, my preferred method for deleting rows is to use...
ws.Rows(Rand) = ""
...in the initial loop. I then use a Sort function to push these rows to the bottom of the data. The main reason for this is because deleting single rows can be a very slow procedure (if you are deleting >100). It also ensures nothing gets missed as per Robert Ilbrink's comment
You can learn the code for sorting by recording a macro and reducing the code as demonstrated in this expert Excel video. I have a suspicion that the neatest method (Range("A1:Z10").Sort Key1:=Range("A1"), Order1:=xlSortAscending/Descending, Header:=xlYes/No) can only be discovered on pre-2007 versions of Excel...but you can always reduce the 2007/2010 equivalent code
Couple more points...if your list is not already sorted by a column and you wish to retain the order, you can stick the row number 'Rand' in a spare column to the right of each row as you loop through. You would then sort by that comment and eliminate it
If your data rows contain formatting, you may wish to find the end of the new data range and delete the rows that you cleared earlier. That's to keep the file size down. Note that a single large delete at the end of the procedure will not impair your code's performance in the same way that deleting single rows does
public static string ComputeSHA256Hash(string text)
{
using (var sha256 = new SHA256Managed())
{
return BitConverter.ToString(sha256.ComputeHash(Encoding.UTF8.GetBytes(text))).Replace("-", "");
}
}
The reason why you get different results is because you don't use the same string encoding. The link you put for the on-line web site that computes SHA256 uses UTF8 Encoding, while in your example you used Unicode Encoding. They are two different encodings, so you don't get the same result. With the example above you get the same SHA256 hash of the linked web site. You need to use the same encoding also in PHP.
The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)
You can also achieve this using a CSS Grids framework, such as YUI Grids or Blue Print CSS. They solve alot of the cross browser issues and make more sophisticated column layouts possible for use mere mortals.
In command mode (press Esc if you are not sure) you can use:
final Map<String, String> mss1 = new ProcessBuilder().environment();
mss1.entrySet()
.stream()
//depending on how you want to join K and V use different delimiter
.map(entry ->
String.join(":", entry.getKey(),entry.getValue()))
.forEach(System.out::println);
I realize this is old, but here is a ray casting algorithm implemented in Cocoa, in case anyone is interested. Not sure it is the most efficient way to do things, but it may help someone out.
- (BOOL)shape:(NSBezierPath *)path containsPoint:(NSPoint)point
{
NSBezierPath *currentPath = [path bezierPathByFlatteningPath];
BOOL result;
float aggregateX = 0; //I use these to calculate the centroid of the shape
float aggregateY = 0;
NSPoint firstPoint[1];
[currentPath elementAtIndex:0 associatedPoints:firstPoint];
float olderX = firstPoint[0].x;
float olderY = firstPoint[0].y;
NSPoint interPoint;
int noOfIntersections = 0;
for (int n = 0; n < [currentPath elementCount]; n++) {
NSPoint points[1];
[currentPath elementAtIndex:n associatedPoints:points];
aggregateX += points[0].x;
aggregateY += points[0].y;
}
for (int n = 0; n < [currentPath elementCount]; n++) {
NSPoint points[1];
[currentPath elementAtIndex:n associatedPoints:points];
//line equations in Ax + By = C form
float _A_FOO = (aggregateY/[currentPath elementCount]) - point.y;
float _B_FOO = point.x - (aggregateX/[currentPath elementCount]);
float _C_FOO = (_A_FOO * point.x) + (_B_FOO * point.y);
float _A_BAR = olderY - points[0].y;
float _B_BAR = points[0].x - olderX;
float _C_BAR = (_A_BAR * olderX) + (_B_BAR * olderY);
float det = (_A_FOO * _B_BAR) - (_A_BAR * _B_FOO);
if (det != 0) {
//intersection points with the edges
float xIntersectionPoint = ((_B_BAR * _C_FOO) - (_B_FOO * _C_BAR)) / det;
float yIntersectionPoint = ((_A_FOO * _C_BAR) - (_A_BAR * _C_FOO)) / det;
interPoint = NSMakePoint(xIntersectionPoint, yIntersectionPoint);
if (olderX <= points[0].x) {
//doesn't matter in which direction the ray goes, so I send it right-ward.
if ((interPoint.x >= olderX && interPoint.x <= points[0].x) && (interPoint.x > point.x)) {
noOfIntersections++;
}
} else {
if ((interPoint.x >= points[0].x && interPoint.x <= olderX) && (interPoint.x > point.x)) {
noOfIntersections++;
}
}
}
olderX = points[0].x;
olderY = points[0].y;
}
if (noOfIntersections % 2 == 0) {
result = FALSE;
} else {
result = TRUE;
}
return result;
}
you can make use of the following code:
from __future__ import division, unicode_literals
import codecs
from bs4 import BeautifulSoup
f=codecs.open("test.html", 'r', 'utf-8')
document= BeautifulSoup(f.read()).get_text()
print document
If you want to delete all the blank lines in between and get all the words as a string (also avoid special characters, numbers) then also include:
import nltk
from nltk.tokenize import word_tokenize
docwords=word_tokenize(document)
for line in docwords:
line = (line.rstrip())
if line:
if re.match("^[A-Za-z]*$",line):
if (line not in stop and len(line)>1):
st=st+" "+line
print st
*define st
as a string
initially, like st=""
Probably the easiest thing you can do is set the value to an empty string. This forces it to 'change' the file each time even if the same file is selected again.
<input type="file" value="" />
Not sure if I am late to the party but I found this nice example that overrides the JSONObject constructor and makes sure that the JSON data are output in the same way as they are added. Behind the scenes JSONObject uses the MAP and MAP does not guarantee the order hence we need to override it to make sure we are receiving our JSON as per our order.
If you add this to your JSONObject then the resulting JSON would be in the same order as you have created it.
import java.io.IOException;
import java.lang.reflect.Field;
import java.util.LinkedHashMap;
import org.json.JSONObject;
import lombok.extern.java.Log;
@Log
public class JSONOrder {
public static void main(String[] args) throws IOException {
JSONObject jsontest = new JSONObject();
try {
Field changeMap = jsonEvent.getClass().getDeclaredField("map");
changeMap.setAccessible(true);
changeMap.set(jsonEvent, new LinkedHashMap<>());
changeMap.setAccessible(false);
} catch (IllegalAccessException | NoSuchFieldException e) {
log.info(e.getMessage());
}
jsontest.put("one", "I should be first");
jsonEvent.put("two", "I should be second");
jsonEvent.put("third", "I should be third");
System.out.println(jsonEvent);
}
}
If you are most concerned about code size and/or performance (also for WCET analysis, if you need one), I think this is probably going to be one of the more transparent solutions (for finding and removing elements):
unsigned int l=0, removed=0;
for( unsigned int i=0; i<count; i++ ) {
if( array[i] != to_remove )
array[l++] = array[i];
else
removed++;
}
count -= removed;
Having 2 files like you suggested would be the easiest solution.
For instance:
(.. your html ..)
<form action="script.php" method="get">
<input type="submit" value="Run me now!">
</form>
(...)
<?php
echo "Hello world!"; // Your code here
?>
<?php
if (!empty($_GET['act'])) {
echo "Hello world!"; //Your code here
} else {
?>
(.. your html ..)
<form action="index.php" method="get">
<input type="hidden" name="act" value="run">
<input type="submit" value="Run me now!">
</form>
<?php
}
?>
Here is another answer using Spring MVC's standaloneSetup. Using this way you can either autowire the controller class or Mock it.
import static org.mockito.Mockito.mock;
import static org.springframework.test.web.server.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.server.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.server.result.MockMvcResultMatchers.status;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.web.server.MockMvc;
import org.springframework.test.web.server.setup.MockMvcBuilders;
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class DemoApplicationTests {
final String BASE_URL = "http://localhost:8080/";
@Autowired
private HelloWorld controllerToTest;
private MockMvc mockMvc;
@Before
public void setup() {
this.mockMvc = MockMvcBuilders.standaloneSetup(controllerToTest).build();
}
@Test
public void testSayHelloWorld() throws Exception{
//Mocking Controller
controllerToTest = mock(HelloWorld.class);
this.mockMvc.perform(get("/")
.accept(MediaType.parseMediaType("application/json;charset=UTF-8")))
.andExpect(status().isOk())
.andExpect(content().mimeType(MediaType.APPLICATION_JSON));
}
@Test
public void contextLoads() {
}
}
From the YouTube help:
You will automatically be opted into showing ads on embedded videos if you've associated your YouTube and AdSense accounts and have enabled your videos for embedding.
If you don't want to show overlay ads on your embedded videos, you can opt your videos out of showing overlay ads, though this will also disable overlay ads on your videos on YouTube.com. You may also disable your videos for embedding.
https://support.google.com/youtube/answer/132596?hl=en
Another technical solution could be to use a custom video player, and streamline the youtube video with that one. Have not tried but guess that the ads cannot be displayed in a custom player. However, could be forbidden.
If you are not using "-XX:HeapDumpPath" option then in case of JBoss EAP/As by default the heap dump file will be generated in "JBOSS_HOME/bin" directory.
In pure Ruby you could extend the string class using code lifted from Rails .camelize
class String
def camelize(uppercase_first_letter = true)
string = self
if uppercase_first_letter
string = string.sub(/^[a-z\d]*/) { |match| match.capitalize }
else
string = string.sub(/^(?:(?=\b|[A-Z_])|\w)/) { |match| match.downcase }
end
string.gsub(/(?:_|(\/))([a-z\d]*)/) { "#{$1}#{$2.capitalize}" }.gsub("/", "::")
end
end
To checkout a branch which does not exist locally but is in the remote repo you could use this command:
git checkout -t -b master origin/master
return false
is usually meant to terminate the object creation with a failure. It is as simple as that.
It passes control to interrupt vector 0x80
See http://en.wikipedia.org/wiki/Interrupt_vector
On Linux, have a look at this: it was used to handle system_call
. Of course on another OS this could mean something totally different.
Well, I'm not sure to understand your question...
In C, Char[] and Char* are the same thing.
Edit : thanks for this interesting link.
In PySpark 1.3 sort
method doesn't take ascending parameter. You can use desc
method instead:
from pyspark.sql.functions import col
(group_by_dataframe
.count()
.filter("`count` >= 10")
.sort(col("count").desc()))
or desc
function:
from pyspark.sql.functions import desc
(group_by_dataframe
.count()
.filter("`count` >= 10")
.sort(desc("count"))
Both methods can be used with with Spark >= 1.3 (including Spark 2.x).
I'm using FirefoxOptions class to set the binary location with Firefox 52.0, GeckoDriver v0.15.0 and Selenium 3.3.1 as mentioned in this article - http://www.automationtestinghub.com/selenium-3-0-launch-firefox-with-geckodriver/
The java code that I used -
FirefoxOptions options = new FirefoxOptions();
options.setBinary("C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe"); //location of FF exe
FirefoxDriver driver = new FirefoxDriver(options);
driver.get("http://www.google.com");
I was having the same issue in Workbench plus insert query from C# application. In my case using ISO format solve the issue
string value = date.ToString("yyyy-MM-dd HH:mm:ss");
I had a requirement to search/match for version numbers, that follows maven convention or even just single digit. But no qualifier in any case. It was peculiar, it took me time then I came up with this:
'^[0-9][0-9.]*$'
This makes sure the version,
One drawback is that version can even end with '.' But it can handle indefinite length of version (crazy versioning if you want to call it that)
Matches:
If you are not unhappy with '.' ending, may be you can combine with endswith logic
This should work :
curl -i -H "Accept: application/json" 'server:5050/a/c/getName{"param0":"pradeep"}'
use option -i instead of x.
If you want a straight redirect of all output to a file, try using *>>
:
# You'll receive standard output for the first command, and an error from the second command.
mkdir c:\temp -force *>> c:\my.log ;
mkdir c:\temp *>> c:\my.log ;
Since this is a straight redirect to file, it won't output to the console (often helpful). If you desire the console output, combined all output with *&>1
, and then pipe with Tee-Object
:
mkdir c:\temp -force *>&1 | Tee-Object -Append -FilePath c:\my.log ;
mkdir c:\temp *>&1 | Tee-Object -Append -FilePath c:\my.log ;
# Shorter aliased version
mkdir c:\temp *>&1 | tee -Append c:\my.log ;
I believe these techniques are supported in PowerShell 3.0 or later; I'm testing on PowerShell 5.0.
I faced this same problem and none of the answers above helped me. What i did was run:
node --version
and in the package.json add the engines section with your node version:
{
"name": "myapp",
"description": "a really cool app",
"version": "1.0.0",
"engines": {
"node": "6.11.1"
}
}
The zip()
function in Python 3 returns an iterator. That is the reason why when you print test1
you get - <zip object at 0x1007a06c8>
. From documentation -
Make an iterator that aggregates elements from each of the iterables.
But once you do - list(test1)
- you have exhausted the iterator. So after that anytime you do list(test1)
would only result in empty list.
In case of test2
, you have already created the list once, test2
is a list, and hence it will always be that list.
This is an even later response to @gniourf_gniourf's late answer, which I just upvoted because it's by far the best answer, twice over. (Once for avoiding eval
and once for safe filename handling.)
But it took me a few minutes to untangle the "not very well documented" feature(s) this answer uses. If your Bash skills are solid enough that you saw immediately how it works, then skip this comment. But I didn't, and having untangled it I think it's worth explaining.
Feature #1 is the shell's own file globbing. a=(*)
creates an array, $a
, whose members are the files in the current directory. Bash understands all the weirdnesses of filenames, so that list is guaranteed correct, guaranteed escaped, etc. No need to worry about properly parsing textual file names returned by ls
.
Feature #2 is Bash parameter expansions for arrays, one nested within another. This starts with ${#ARRAY[@]}
, which expands to the length of $ARRAY
.
That expansion is then used to subscript the array. The standard way to find a random number between 1 and N is to take the value of random number modulo N. We want a random number between 0 and the length of our array. Here's the approach, broken into two lines for clarity's sake:
LENGTH=${#ARRAY[@]}
RANDOM=${a[RANDOM%$LENGTH]}
But this solution does it in a single line, removing the unnecessary variable assignment.
Feature #3 is Bash brace expansion, although I have to confess I don't entirely understand it. Brace expansion is used, for instance, to generate a list of 25 files named filename1.txt
, filename2.txt
, etc: echo "filename"{1..25}".txt"
.
The expression inside the subshell above, "${a[RANDOM%${#a[@]}]"{1..42}"}"
, uses that trick to produce 42 separate expansions. The brace expansion places a single digit in between the ]
and the }
, which at first I thought was subscripting the array, but if so it would be preceded by a colon. (It would also have returned 42 consecutive items from a random spot in the array, which is not at all the same thing as returning 42 random items from the array.) I think it's just making the shell run the expansion 42 times, thereby returning 42 random items from the array. (But if someone can explain it more fully, I'd love to hear it.)
The reason N has to be hardcoded (to 42) is that brace expansion happens before variable expansion.
Finally, here's Feature #4, if you want to do this recursively for a directory hierarchy:
shopt -s globstar
a=( ** )
This turns on a shell option that causes **
to match recursively. Now your $a
array contains every file in the entire hierarchy.
I'd stay with two different interfaces.
You said that 'I want to group my service executors under a common interface... It also seems overkill creating two separate interfaces for the two different service calls... A class will only implement one of these interfaces'
It's not clear what is the reason to have a single interface then. If you want to use it as a marker, you can just exploit annotations instead.
Another point is that there is a possible case that your requirements change and method(s) with another signature appears at the interface. Of course it's possible to use Adapter pattern then but it would be rather strange to see that particular class implements interface with, say, three methods where two of them trow UnsupportedOperationException. It's possible that the forth method appears etc.
Apache Commons IO provides the FilenameUtils class which gives you a pretty rich set of utility functions for easily obtaining the various components of filenames, although The java.io.File class provides the basics.
It might be old but in my case, it was because of docker. Hope it will help others.
Here's the Gist.
You can create a spreadsheet using the Google Sheets API. There is currently no way to delete a spreadsheet using the API (read the documentation). Think of Google Docs API as the route to create and look-up documents.
You can add/remove worksheets within the spreadsheet using the worksheet based feeds.
Updating a spreadsheet is done through either list based feeds or cell based feeds.
Reading the spreadsheet can be done through either the Google Spreadsheets APIs mentioned above or, for published sheets only, by using the Google Visualization API Query Language to query the data (which can return results in CSV, JSON, or HTML table format).
Forget jQuery. jQuery is only really valuable if you're traversing the DOM. Since GAS (Google Apps Scripting) doesn't use the DOM jQuery will add no value to your code. Stick to vanilla.
I'm really surprised that nobody has provided this information in an answer yet. Not only can it be done, but it's relatively easy to do using vanilla JS. The only exception being the Google Visualization API which is relatively new (as of 2011). The Visualization API also works exclusively through a HTTP query string URI.
The URL listed here might be of interest to you
http://www.codeplex.com/InterIMAP
which was extension to
You could copy the XAMPP shortcut into "Local Disk C /users/YourUserName/AppData/Roaming/Microsoft/Windows/Start Menu/Programs/Start-up"...
This will make the control panel start up with the computer. Then if you were to select the configuration in the top right hand corner of the control panel you can make Apache and MySQL auto start... This is a quite long-winded get around, but it works for Windows 10.
The whole point of HttpOnly cookies is that they can't be accessed by JavaScript.
The only way (except for exploiting browser bugs) for your script to read them is to have a cooperating script on the server that will read the cookie value and echo it back as part of the response content. But if you can and would do that, why use HttpOnly cookies in the first place?
All of the solutions given here haven't helped (I'm constrained to python 2.6.6). I've found the answer in a simple switch to pass to pip:
$ sudo pip install --trusted-host pypi.python.org <module_name>
This tells pip that it's OK to grab the module from pypi.python.org.
For me, the issue is my company's proxy behind it's firewall that makes it look like a malicious client to some servers. Hooray security.
Update: See @Alex 's
answer for changes in the PyPi domains, and additional --trusted-host
options that can be added. (I'd copy/paste here, but his answer, so +1 him)
Today i ran into same issue, posting here my mistake and correction of it so that it may help someone.
While Re-structuring code, I had actually changed Service class and IService names and changed ServiceHost to point to this new Service class name (as shown in code snippet) but in my host applications App.Config file i was still using old Service class name.(refer config section's name field in below snippet)
Here is the code snippet,
ServiceHost myServiceHost = new ServiceHost(typeof(NewServiceClassName));
and in App.config file under section services i was referring to old serviceclass name , changing it to New ServiceClassName fixed issue for me.
<service name="ProjectName.OldServiceClassName">
<endpoint address="" binding="basicHttpBinding" contract="ProjectName.IService">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
<host>
<baseAddresses>
<add baseAddress=""/>
</baseAddresses>
</host>
</service>
One way to do this is to create an instance of the ofstream class, and use it to write to your file. Here's a link to a website that has some example code, and some more information about the standard tools available with most implementations of C++:
For completeness, here's some example code:
// using ofstream constructors.
#include <iostream>
#include <fstream>
std::ofstream outfile ("test.txt");
outfile << "my text here!" << std::endl;
outfile.close();
You want to use std::endl to end your lines. An alternative is using '\n' character. These two things are different, std::endl flushes the buffer and writes your output immediately while '\n' allows the outfile to put all of your output into a buffer and maybe write it later.
Here is a secure version of Alex Martelli's:
import csv
with open('filename', 'wb') as myfile:
wr = csv.writer(myfile, quoting=csv.QUOTE_ALL)
wr.writerow(mylist)
just see how DataInputStream.readInt() is implemented;
int ch1 = in.read();
int ch2 = in.read();
int ch3 = in.read();
int ch4 = in.read();
if ((ch1 | ch2 | ch3 | ch4) < 0)
throw new EOFException();
return ((ch1 << 24) + (ch2 << 16) + (ch3 << 8) + (ch4 << 0));
To do this without the leading space, why not:
wc -l < file.txt | bc
Nullable type can invoke runtime error.
So I think it's good to use a compiler option --strictNullChecks
and declare number | null
as type. also in case of nested function, although input type is null, compiler can not know what it could break, so I recommend use !
(exclamination mark).
function broken(name: string | null): string {
function postfix(epithet: string) {
return name.charAt(0) + '. the ' + epithet; // error, 'name' is possibly null
}
name = name || "Bob";
return postfix("great");
}
function fixed(name: string | null): string {
function postfix(epithet: string) {
return name!.charAt(0) + '. the ' + epithet; // ok
}
name = name || "Bob";
return postfix("great");
}
Reference. https://www.typescriptlang.org/docs/handbook/advanced-types.html#type-guards-and-type-assertions
Also take care not to write
google.maps.event.addDomListener(window, "load", init())
correct:
google.maps.event.addDomListener(window, "load", init)
If you are using maven try to maven update all projects and force for snapshots. It will clean as well and rebuilt all classpath.. It solved my problem..
I think that, if you need prefixes to distinguish class members from member function parameters and local variables, either the function is too big or the variables are badly named. If it doesn't fit on the screen so you can easily see what is what, refactor.
Given that they often are declared far from where they are used, I find that naming conventions for global constants (and global variables, although IMO there's rarely ever a need to use those) make sense. But otherwise, I don't see much need.
That said, I used to put an underscore at the end of all private class members. Since all my data is private, this implies members have a trailing underscore. I usually don't do this anymore in new code bases, but since, as a programmer, you mostly work with old code, I still do this a lot. I'm not sure whether my tolerance for this habit comes from the fact that I used to do this always and am still doing it regularly or whether it really makes more sense than the marking of member variables.
simple version:
just give out the reject function.
function Sleep(ms,cancel_holder) {
return new Promise(function(resolve,reject){
var done=false;
var t=setTimeout(function(){if(done)return;done=true;resolve();}, ms);
cancel_holder.cancel=function(){if(done)return;done=true;if(t)clearTimeout(t);reject();}
})
}
a wraper solution (factory)
the solution I found is to pass a cancel_holder object. it will have a cancel function. if it has a cancel function then it is cancelable.
This cancel function rejects the promise with Error('canceled').
Before resolve, reject, or on_cancel prevent the cancel function to be called without reason.
I have found convenient to pass the cancel action by injection
function cancelablePromise(cancel_holder,promise_fn,optional_external_cancel) {
if(!cancel_holder)cancel_holder={};
return new Promise( function(resolve,reject) {
var canceled=false;
var resolve2=function(){ if(canceled) return; canceled=true; delete cancel_holder.cancel; resolve.apply(this,arguments);}
var reject2=function(){ if(canceled) return; canceled=true; delete cancel_holder.cancel; reject.apply(this,arguments);}
var on_cancel={}
cancel_holder.cancel=function(){
if(canceled) return; canceled=true;
delete cancel_holder.cancel;
cancel_holder.canceled=true;
if(on_cancel.cancel)on_cancel.cancel();
if(optional_external_cancel)optional_external_cancel();
reject(new Error('canceled'));
};
return promise_fn.call(this,resolve2,reject2,on_cancel);
});
}
function Sleep(ms,cancel_holder) {
return cancelablePromise(cancel_holder,function(resolve,reject,oncacnel){
var t=setTimeout(resolve, ms);
oncacnel.cancel=function(){if(t)clearTimeout(t);}
})
}
let cancel_holder={};
// meanwhile in another place it can be canceled
setTimeout(function(){ if(cancel_holder.cancel)cancel_holder.cancel(); },500)
Sleep(1000,cancel_holder).then(function() {
console.log('sleept well');
}, function(e) {
if(e.message!=='canceled') throw e;
console.log('sleep interrupted')
})
You could use a regular expression:
SELECT DISTINCT city
FROM station
WHERE city RLIKE '^[aeiouAEIOU].*[aeiouAEIOU]$'
If you could send an SMS within a program on the iPhone, you'll be able to write games that spam people in the background. I'm sure you really want to have spams from your friends, "Try out this new game! It roxxers my boxxers, and yours will be too! roxxersboxxers.com!!!! If you sign up now you'll get 3,200 RB points!!"
Apple has restrictions for automated (or even partially automated) SMS and dialing operations. (Imagine if the game instead dialed 911 at a particular time of day)
Your best bet is to set up an intermediate server on the internet that uses an online SMS sending service and send the SMS via that route if you need complete automation. (ie, your program on the iPhone sends a UDP packet to your server, which sends the real SMS)
iOS 4, however, now provides a viewController
you can import into your application. You prepopulate the SMS fields, then the user can initiate the SMS send within the controller. Unlike using the "SMS:..." url format, this allows your application to stay open, and allows you to populate both the to and the body fields. You can even specify multiple recipients.
This prevents applications from sending automated SMS without the user explicitly aware of it. You still cannot send fully automated SMS from the iPhone itself, it requires some user interaction. But this at least allows you to populate everything, and avoids closing the application.
The MFMessageComposeViewController class is well documented, and tutorials show how easy it is to implement.
iOS 5 includes messaging for iPod touch and iPad devices, so while I've not yet tested this myself, it may be that all iOS devices will be able to send SMS via MFMessageComposeViewController. If this is the case, then Apple is running an SMS server that sends messages on behalf of devices that don't have a cellular modem.
No changes to this class.
You can now check to see if the message medium you are using will accept a subject or attachments, and what kind of attachments it will accept. You can edit the subject and add attachments to the message, where the medium allows it.
No changes to this class.
No changes to this class.
No changes to this class.
No significant changes to this class
Keep in mind that this won't work on phones without iOS 4, and it won't work on the iPod touch or the iPad, except, perhaps, under iOS 5. You must either detect the device and iOS limitations prior to using this controller, or risk restricting your app to recently upgraded 3G, 3GS, and 4 iPhones.
However, an intermediate server that sends SMS will allow any and all of these iOS devices to send SMS as long as they have internet access, so it may still be a better solution for many applications. Alternately, use both, and only fall back to an online SMS service when the device doesn't support it.
It seems like you have it worked out, but for others looking for this answer, an easy way to do this is by printing to stderr. You can do that like this:
from __future__ import print_function # In python 2.7
import sys
@app.route('/button/')
def button_clicked():
print('Hello world!', file=sys.stderr)
return redirect('/')
Flask will display things printed to stderr in the console. For other ways of printing to stderr, see this stackoverflow post
FacesContext.addMessage(String, FacesMessage) requires the component's clientId, not it's id. If you're wondering why, think about having a control as a child of a dataTable, stamping out different values with the same control for each row - it would be possible to have a different message printed for each row. The id is always the same; the clientId is unique per row.
So "myform:mybutton" is the correct value, but hard-coding this is ill-advised. A lookup would create less coupling between the view and the business logic and would be an approach that works in more restrictive environments like portlets.
<f:view>
<h:form>
<h:commandButton id="mybutton" value="click"
binding="#{showMessageAction.mybutton}"
action="#{showMessageAction.validatePassword}" />
<h:message for="mybutton" />
</h:form>
</f:view>
Managed bean logic:
/** Must be request scope for binding */
public class ShowMessageAction {
private UIComponent mybutton;
private boolean isOK = false;
public String validatePassword() {
if (isOK) {
return "ok";
}
else {
// invalid
FacesMessage message = new FacesMessage("Invalid password length");
FacesContext context = FacesContext.getCurrentInstance();
context.addMessage(mybutton.getClientId(context), message);
}
return null;
}
public void setMybutton(UIComponent mybutton) {
this.mybutton = mybutton;
}
public UIComponent getMybutton() {
return mybutton;
}
}
Okay. The same time I was writing down my question one of my colleagues made me aware this is actually HTML5 behavior. See http://dev.w3.org/html5/spec/Overview.html#the-required-attribute
Seems in HTML5 there is a new attribute "required". And Safari 5 already has an implementation for this attribute.
If you are starting with something that has a .Length
or .Count
(such as ICollection<T>
, IList<T>
, List<T>
, etc) - then this will be the fastest option, since it doesn't need to go through the GetEnumerator()
/MoveNext()
/Dispose()
sequence required by Any()
to check for a non-empty IEnumerable<T>
sequence.
For just IEnumerable<T>
, then Any()
will generally be quicker, as it only has to look at one iteration. However, note that the LINQ-to-Objects implementation of Count()
does check for ICollection<T>
(using .Count
as an optimisation) - so if your underlying data-source is directly a list/collection, there won't be a huge difference. Don't ask me why it doesn't use the non-generic ICollection
...
Of course, if you have used LINQ to filter it etc (Where
etc), you will have an iterator-block based sequence, and so this ICollection<T>
optimisation is useless.
In general with IEnumerable<T>
: stick with Any()
;-p
Answer to my own question. The only way I have found that works consistently and instantaneously is to:
1) Create a link in my "Favorites" to the directory I use
2) Update the properties on that favorite to be an absolute path (\\ads\IT-DEPT-DFS\Data\MAILROOM)
3) When saving a new file, I navigate to that directory only via the Favorites directory created above (or you can use any Shortcut with an absolute path)
4) After saving, go to the File tab and the full path can be copied from the top of the Info (default) section
Also can be defined in the xml without creating custom classes
style.xml
<style name="ionicons" parent="android:TextAppearance">
<!-- Custom Attr-->
<item name="fontPath">fonts/ionicons.ttf</item>
</style>
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="@style/ionicons"
android:text="?"/>
</LinearLayout>
A quick note, because I just always forgot where to put the fonts, its that the font must be inside assets
and this folder resides in the same level that res
and src
, in my case its assets/fonts/ionicons.ttf
Updated Added root layout because this method needs xmlns:app="http://schemas.android.com/apk/res-auto"
to work
Update 2 Forgot about a library that I've installed before called Calligraphy
The generic Returns<T>
method can handle this situation nicely.
_mock.Setup(x => x.DoSomething(It.IsAny<string>())).Returns<string>(x => x);
Or if the method requires multiple inputs, specify them like so:
_mock.Setup(x => x.DoSomething(It.IsAny<string>(), It.IsAny<int>())).Returns((string x, int y) => x);
Easiest way
You can use the UINavigationController's delegate methods. The method willShowViewController
is called when the back button of your VC is pressed.do whatever you want when back btn pressed
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated;
Unwind segues are used to "go back" to some view controller from which, through a number of segues, you got to the "current" view controller.
Imagine you have something a MyNavController
with A
as its root view controller. Now you use a push segue to B
. Now the navigation controller has A and B in its viewControllers
array, and B is visible. Now you present C
modally.
With unwind segues, you could now unwind "back" from C
to B
(i.e. dismissing the modally presented view controller), basically "undoing" the modal segue. You could even unwind all the way back to the root view controller A
, undoing both the modal segue and the push segue.
Unwind segues make it easy to backtrack. For example, before iOS 6, the best practice for dismissing presented view controllers was to set the presenting view controller as the presented view controller’s delegate, then call your custom delegate method, which then dismisses the presentedViewController. Sound cumbersome and complicated? It was. That’s why unwind segues are nice.
Providing some other solution; we're also using react-native-image-picker
; and the server side is using koa-multer
; this set-up is working good:
ui
ImagePicker.showImagePicker(options, (response) => {
if (response.didCancel) {}
else if (response.error) {}
else if (response.customButton) {}
else {
this.props.addPhoto({ // leads to handleAddPhoto()
fileName: response.fileName,
path: response.path,
type: response.type,
uri: response.uri,
width: response.width,
height: response.height,
});
}
});
handleAddPhoto = (photo) => { // photo is the above object
uploadImage({ // these 3 properties are required
uri: photo.uri,
type: photo.type,
name: photo.fileName,
}).then((data) => {
// ...
});
}
client
export function uploadImage(file) { // so uri, type, name are required properties
const formData = new FormData();
formData.append('image', file);
return fetch(`${imagePathPrefix}/upload`, { // give something like https://xx.yy.zz/upload/whatever
method: 'POST',
body: formData,
}
).then(
response => response.json()
).then(data => ({
uri: data.uri,
filename: data.filename,
})
).catch(
error => console.log('uploadImage error:', error)
);
}
server
import multer from 'koa-multer';
import RouterBase from '../core/router-base';
const upload = multer({ dest: 'runtime/upload/' });
export default class FileUploadRouter extends RouterBase {
setupRoutes({ router }) {
router.post('/upload', upload.single('image'), async (ctx, next) => {
const file = ctx.req.file;
if (file != null) {
ctx.body = {
uri: file.filename,
filename: file.originalname,
};
} else {
ctx.body = {
uri: '',
filename: '',
};
}
});
}
}
start-all.sh & stop-all.sh : Used to start and stop hadoop daemons all at once. Issuing it on the master machine will start/stop the daemons on all the nodes of a cluster. Deprecated as you have already noticed.
start-dfs.sh, stop-dfs.sh and start-yarn.sh, stop-yarn.sh : Same as above but start/stop HDFS and YARN daemons separately on all the nodes from the master machine. It is advisable to use these commands now over start-all.sh & stop-all.sh
hadoop-daemon.sh namenode/datanode and yarn-deamon.sh resourcemanager : To start individual daemons on an individual machine manually. You need to go to a particular node and issue these commands.
Use case : Suppose you have added a new DN to your cluster and you need to start the DN daemon only on this machine,
bin/hadoop-daemon.sh start datanode
Note : You should have ssh enabled if you want to start all the daemons on all the nodes from one machine.
Hope this answers your query.
df['original_category'] = df['original_category'].apply(lambda x:x.lower())
Regarding seek()
there's not too much to worry about.
First of all, it is useful when operating over an open file.
It's important to note that its syntax is as follows:
fp.seek(offset, from_what)
where fp
is the file pointer you're working with; offset
means how many positions you will move; from_what
defines your point of reference:
if omitted, from_what
defaults to 0.
Never forget that when managing files, there'll always be a position inside that file where you are currently working on. When just open, that position is the beginning of the file, but as you work with it, you may advance.
seek
will be useful to you when you need to walk
along that open file, just as a path you are traveling into.
Rebase doesn't happen in the background. "rebase in progress" means that you started a rebase, and the rebase got interrupted because of conflict. You have to resume the rebase
(git rebase --continue
) or abort it (git rebase --abort
).
As the error message from git rebase --continue
suggests, you asked git to apply a patch that results in an empty patch. Most likely, this means the patch was already applied and you want to drop it using git rebase --skip
.
I use this for Firebird
select 1 from RDB$RELATION_FIELDS rows 1
Since you mentioned $.each()
, here's a handy approach that would work in jQuery 1.6+:
var foo = { key1: 'bar', key2: 'baz' };
// keys will be: ['key1', 'key2']
var keys = $.map(foo, function(item, key) {
return key;
});
On Windows it's holding down Alt while box selecting. Once you have your selection then attempt your edit.
For a minimal change:
for(int i=0; i<str.Length; i++ )
if(str[i] >= 'a' && str[i] <= 'z' || str[i] >= 'A' && str[i] <= 'Z')
errorCount++;
You could use regular expressions, at least if speed is not an issue and you do not really need the actual exact count.
Converting your value in milliseconds to days is simply (MsValue / 86,400,000)
We can get 1/1/1970 as numeric value by DATE(1970,1,1)
= (MsValueCellReference / 86400000) + DATE(1970,1,1)
Using your value of 1271664970687 and formatting it as dd/mm/yyyy hh:mm:ss
gives me a date and time of 19/04/2010 08:16:11
If support for the iPad 2 or iPod Touch is important for your application, I'd choose a barcode scanner SDK that can decode barcodes in blurry images, such as our Scandit barcode scanner SDK for iOS and Android. Decoding blurry barcode images is also helpful on phones with autofocus cameras because the user does not have to wait for the autofocus to kick in.
Scandit comes with a free community price plan and also has a product API that makes it easy to convert barcode numbers into product names.
(Disclaimer: I'm a co-founder of Scandit)
Instead of mocking concrete class you should mock that class interface. Extract interface from XmlCupboardAccess class
public interface IXmlCupboardAccess
{
bool IsDataEntityInXmlCupboard(string dataId, out string nameInCupboard, out string refTypeInCupboard, string nameTemplate = null);
}
And instead of
private Mock<XmlCupboardAccess> _xmlCupboardAccess = new Mock<XmlCupboardAccess>();
change to
private Mock<IXmlCupboardAccess> _xmlCupboardAccess = new Mock<IXmlCupboardAccess>();
I'm not sure that is the problem but what worked for me is calling mVideoView.start();
inside the mVideoView.setOnPreparedListener
event callback.
For example:
Uri uriVideo = Uri.parse(<your link here>);
MediaController mediaController = new MediaController(mContext);
mediaController.setAnchorView(mVideoView);
mVideoView.setMediaController(mediaController);
mVideoView.setVideoURI(uriVideo);
mVideoView.requestFocus();
mVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener()
{
@Override
public void onPrepared(MediaPlayer mp)
{
mVideoViewPeekItem.start();
}
});
Use ALTER SESSION statements to set comparison to case-insensitive:
alter session set NLS_COMP=LINGUISTIC;
alter session set NLS_SORT=BINARY_CI;
If you're still using version 10gR2, use the below statements. See this FAQ for details.
alter session set NLS_COMP=ANSI;
alter session set NLS_SORT=BINARY_CI;
It comes from +[UIWindow _synchronizeDrawingAcrossProcessesOverPort:withPreCommitHandler:]
via os_log API. It doesn't depend from another components/frameworks that you are using(only from UIKit) - it reproduces in clean single view application project on changing interface orientation.
This method consists from 2 parts:
When second part fails (looks like prohibited transition), it prints message above to error log. However, I think that this problem is not fatal: there are 2 additional assert cases in this method, that will lead to crash in debug.
Seems that radar is the best we can do.
break
will stop the current loop (or pass an integer to tell it how many loops to break from).
continue
will stop the current iteration and start the next one.
Here's a directive that will add target="_blank"
to all <a>
tags with an href
attribute. That means they will all open in a new window. Remember that directives are used in Angular for any dom manipulation/behavior. Live demo (click).
app.directive('href', function() {
return {
compile: function(element) {
element.attr('target', '_blank');
}
};
});
Here's the same concept made less invasive (so it won't affect all links) and more adaptable. You can use it on a parent element to have it affect all children links. Live demo (click).
app.directive('targetBlank', function() {
return {
compile: function(element) {
var elems = (element.prop("tagName") === 'A') ? element : element.find('a');
elems.attr("target", "_blank");
}
};
});
It seems like you would just use "target="_blank"
on your <a>
tag. Here are two ways to go:
<a href="//facebook.com" target="_blank">Facebook</a>
<button ng-click="foo()">Facebook</button>
JavaScript:
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope, $window) {
$scope.foo = function() {
$window.open('//facebook.com');
};
});
Here are the docs for $window
: http://docs.angularjs.org/api/ng.$window
You could just use window
, but it is better to use dependency injection, passing in angular's $window
for testing purposes.
You can find details about these in this Android - Command Line Tools
tl;dr:
SDK Tools:
Build Tools:
Platform Tools:
This may be a cause of the disk space as well, In Elasticsearch 7.5.2, by default, if disk usage is above 85% then replica shards are not assigned to any other node.
This can be fixed by setting a different threshold or by disabling it either in the .yml or via Kibana
PUT _cluster/settings
{
"persistent": {
"cluster.routing.allocation.disk.threshold_enabled": "false"
}
}
After a bit of struggle, I found a better solution.
create a directory with name: swagger
mkdir C:\swagger
If you are in Linux, try:
mkdir /opt/swagger
get swagger-editor with below command:
git clone https://github.com/swagger-api/swagger-editor.git
go into swagger-editor directory that is created now
cd swagger-editor
now get swagger-ui with below command:
git clone https://github.com/swagger-api/swagger-ui.git
now, copy your swagger file, I copied to below path:
./swagger-editor/api/swagger/swagger.json
all setup is done, run the swagger-edit with below commands
npm install
npm run build
npm start
You will be prompted 2 URLs, one of them might look like:
http://127.0.0.1:3001/
Above is swagger-editor URL
Now browse to:
http://127.0.0.1:3001/swagger-ui/dist/
Above is swagger-ui URL
Thats all.
You can now browse files from either of swagger-ui or swagger-editor
It will take time to install/build, but once done, you will see great results.
It took roughly 2 days of struggle for me, one-time installation took only about 5 minutes.
Now, on top-right, you can browse to your local file.
best of luck.
I recently fell in love with fuzzyfinder.vim ... :-)
:FuzzyFinderFile will let you open files by typing partial names or patterns.
There may be a limit depending on server and/or application configuration. For Example, check
Use Arrays
class in Java which will return you an ArrayList
:
final List<String> characters = Arrays.asList("+","-");
You will need a bit more work if you need a List<Character>
.
The present solution produces the same flow as your OP. It does not use Labels, but this was not a requirement of the OP. You only asked for "a simple conditional loop that will go to the next iteration if a condition is true", and since this is cleaner to read, it is likely a better option than that using a Label.
What you want inside your for
loop follows the pattern
If (your condition) Then
'Do something
End If
In this case, your condition is Not(Return = 0 And Level = 0)
, so you would use
For i = 2 To 24
Level = Cells(i, 4)
Return = Cells(i, 5)
If (Not(Return = 0 And Level = 0)) Then
'Do something
End If
Next i
PS: the condition is equivalent to (Return <> 0 Or Level <> 0)
In Linux, I normally use this command to recursively grep for a particular text within a dir
grep -rni "string" *
where,
r = recursive i.e, search subdirectories within the current directory
n = to print the line numbers to stdout
i = case insensitive search
You could use something like a set from Programming in Lua:
function Set (list)
local set = {}
for _, l in ipairs(list) do set[l] = true end
return set
end
Then you could put your list in the Set and test for membership:
local items = Set { "apple", "orange", "pear", "banana" }
if items["orange"] then
-- do something
end
Or you could iterate over the list directly:
local items = { "apple", "orange", "pear", "banana" }
for _,v in pairs(items) do
if v == "orange" then
-- do something
break
end
end
Timestamptz vs Timestamp
The timestamptz field in Postgres is basically just the timestamp field where Postgres actually just stores the “normalised” UTC time, even if the timestamp given in the input string has a timezone.
If your input string is: 2018-08-28T12:30:00+05:30 , when this timestamp is stored in the database, it will be stored as 2018-08-28T07:00:00.
The advantage of this over the simple timestamp field is that your input to the database will be timezone independent, and will not be inaccurate when apps from different timezones insert timestamps, or when you move your database server location to a different timezone.
To quote from the docs:
For timestamp with time zone, the internally stored value is always in UTC (Universal Coordinated Time, traditionally known as Greenwich Mean Time, GMT). An input value that has an explicit time zone specified is converted to UTC using the appropriate offset for that time zone. If no time zone is stated in the input string, then it is assumed to be in the time zone indicated by the system’s TimeZone parameter, and is converted to UTC using the offset for the timezone zone. To give a simple analogy, a timestamptz value represents an instant in time, the same instant for anyone viewing it. But a timestamp value just represents a particular orientation of a clock, which will represent different instances of time based on your timezone.
For pretty much any use case, timestamptz is almost always a better choice. This choice is made easier with the fact that both timestamptz and timestamp take up the same 8 bytes of data.
source: https://hasura.io/blog/postgres-date-time-data-types-on-graphql-fd926e86ee87/
This may not be the correct way to do it. But I have solved the problem using substring function.
Select max(start_ts), min(start_ts)from db where SUBSTR(start_ts, 0,9) ='13-may-2016'
using this I was able to retrieve the max and min timestamp.
I've found the best implementation. It's in the Google I/O 2014 app.
They use the same approach as Kevin's. If you can abstract yourself from all unneeded stuff in I/O app, you could extract everything you need and it is assured by Google that it's a correct usage of navigation drawer pattern.
Each activity optionally has a DrawerLayout
as its main layout. The interesting part is how the navigation to other screens is done. It is implemented in BaseActivity
like this:
private void goToNavDrawerItem(int item) {
Intent intent;
switch (item) {
case NAVDRAWER_ITEM_MY_SCHEDULE:
intent = new Intent(this, MyScheduleActivity.class);
startActivity(intent);
finish();
break;
This differs from the common way of replacing current fragment by a fragment transaction. But the user doesn't spot a visual difference.
I was trying to do the exact same thing, open a text file (a CSV for Pandas actually). Don't want to make a copy of it, just want to open it. The form-WTF has a nice file browser, but then it opens the file and makes a temporary file, which it presents as a memory stream. With a little work under the hood,
form = UploadForm()
if form.validate_on_submit():
filename = secure_filename(form.fileContents.data.filename)
filestream = form.fileContents.data
filestream.seek(0)
ef = pd.read_csv( filestream )
sr = pd.DataFrame(ef)
return render_template('dataframe.html',tables=[sr.to_html(justify='center, classes='table table-bordered table-hover')],titles = [filename], form=form)
Try the following
typeField == typeof(string)
typeField == typeof(DateTime)
The typeof
operator in C# will give you a Type
object for the named type. Type
instances are comparable with the ==
operator so this is a good method for comparing them.
Note: If I remember correctly, there are some cases where this breaks down when the types involved are COM interfaces which are embedded into assemblies (via NoPIA). Doesn't sound like this is the case here.
You can use this syntax:
if myItem in list:
# do something
Also, inverse operator:
if myItem not in list:
# do something
It's work fine for lists, tuples, sets and dicts (check keys).
Note that this is an O(n) operation in lists and tuples, but an O(1) operation in sets and dicts.
You need to provide a valid strict weak ordering comparison for the type stored in the queue, Person
in this case. The default is to use std::less<T>
, which resolves to something equivalent to operator<
. This relies on it's own stored type having one. So if you were to implement
bool operator<(const Person& lhs, const Person& rhs);
it should work without any further changes. The implementation could be
bool operator<(const Person& lhs, const Person& rhs)
{
return lhs.age < rhs.age;
}
If the the type does not have a natural "less than" comparison, it would make more sense to provide your own predicate, instead of the default std::less<Person>
. For example,
struct LessThanByAge
{
bool operator()(const Person& lhs, const Person& rhs) const
{
return lhs.age < rhs.age;
}
};
then instantiate the queue like this:
std::priority_queue<Person, std::vector<Person>, LessThanByAge> pq;
Concerning the use of std::greater<Person>
as comparator, this would use the equivalent of operator>
and have the effect of creating a queue with the priority inverted WRT the default case. It would require the presence of an operator>
that can operate on two Person
instances.
If your test coverage is good on all the public method inside the tested class, the privates methods called by the public one will be automatically tested since you will assert all the possible case.
The JUnit Doc says:
Testing private methods may be an indication that those methods should be moved into another class to promote reusability. But if you must... If you are using JDK 1.3 or higher, you can use reflection to subvert the access control mechanism with the aid of the PrivilegedAccessor. For details on how to use it, read this article.
To destroy the previous contents of the file, then write a new string to the file:
open('myfile.txt', 'w') { |f| f << "some text or data structures..." }
To append to a file without overwriting its old contents:
open('myfile.txt', "a") { |f| f << 'I am appended string' }
If you're using rails you can also use in_groups_of:
foo.in_groups_of(3)
That is the correct way to convert it to an INT as long as you don't have any alpha characters or NULL values.
If you have any NULL values, use
ISNULL(column1, 0)
Create another user with mysql_native_password
option:
In terminal:
mysql> CREATE USER 'su'@'localhost' IDENTIFIED WITH mysql_native_password BY '123';
mysql> GRANT ALL PRIVILEGES ON * . * TO 'su'@'localhost';
mysql> FLUSH PRIVILEGES;
void foo(void);
That is the correct way to say "no parameters" in C, and it also works in C++.
But:
void foo();
Means different things in C and C++! In C it means "could take any number of parameters of unknown types", and in C++ it means the same as foo(void)
.
Variable argument list functions are inherently un-typesafe and should be avoided where possible.
Use for...in
loop:
for (var key in obj) {
console.log(' name=' + key + ' value=' + obj[key]);
// do some more stuff with obj[key]
}
To add new ViewController
once you have have an existing ViewController
, follow below step:
Click on background of Main.storyboard
.
Search and select ViewController
from object library at the
utility window.
Drag and drop it in background to create a new ViewController
.
You are all trying to overcomplicate such simple things. Just use a plain and simple JScript conditional comment. It is the fastest because it adds zero code to non-IE browsers for the detection, and it has compatibility dating back to versions of IE before HTML conditional comments were supported. In short,
var IE_version=(-1/*@cc_on,@_jscript_version@*/);
Beware of minifiers: most (if not all) will mistake the special conditional comment for a regular comment, and remove it
Basically, then above code sets the value of IE_version to the version of IE you are using, or -1 f you are not using IE. A live demonstration:
var IE_version=(-1/*@cc_on,@_jscript_version@*/);_x000D_
if (IE_version!==-1){_x000D_
document.write("<h1>You are using Internet Explorer " + IE_version + "</h1>");_x000D_
} else {_x000D_
document.write("<h1>You are not using a version of Internet Explorer less than 11</h1>");_x000D_
}
_x000D_
In my case it should be:
from multiprocessing import JoinableQueue
Since in python2, Queue has methods like .task_done()
, but in python3 multiprocessing.Queue
doesn't have this method, and multiprocessing.JoinableQueue
does.
Here's an answer using the latest Bootstrap 4.0.0. This layout is easier using the flexbox and sizing utility classes that are all provided in Bootstrap 4. This layout is possible with very little extra CSS.
#mmenu_screen > .row {
min-height: 100vh;
}
.flex-fill {
flex:1 1 auto;
}
<div id="mmenu_screen" class="container-fluid main_container d-flex">
<div class="row flex-fill">
<div class="col-sm-6 h-100">
<div class="row h-50">
<div class="col-sm-12" id="mmenu_screen--book">
<!-- Button for booking -->
Booking
</div>
</div>
<div class="row h-50">
<div class="col-sm-12" id="mmenu_screen--information">
<!-- Button for information -->
Info
</div>
</div>
</div>
<div class="col-sm-6 mmenu_screen--direktaction flex-fill">
<!-- Button for direktaction -->
Action
</div>
</div>
</div>
The flex-fill
and vh-100
classes are included in Bootstrap 4.1 (and later)
Try this:
df.my_channel = df.my_channel.where(df.my_channel <= 20000, other= 0)
or
df.my_channel = df.my_channel.mask(df.my_channel > 20000, other= 0)
Chain both class selectors (without a space in between):
.foo.bar {
/* Styles for element(s) with foo AND bar classes */
}
If you still have to deal with ancient browsers like IE6, be aware that it doesn't read chained class selectors correctly: it'll only read the last class selector (.bar
in this case) instead, regardless of what other classes you list.
To illustrate how other browsers and IE6 interpret this, consider this CSS:
* {
color: black;
}
.foo.bar {
color: red;
}
Output on supported browsers is:
<div class="foo">Hello Foo</div> <!-- Not selected, black text [1] -->
<div class="foo bar">Hello World</div> <!-- Selected, red text [2] -->
<div class="bar">Hello Bar</div> <!-- Not selected, black text [3] -->
Output on IE6 is:
<div class="foo">Hello Foo</div> <!-- Not selected, black text [1] -->
<div class="foo bar">Hello World</div> <!-- Selected, red text [2] -->
<div class="bar">Hello Bar</div> <!-- Selected, red text [2] -->
Footnotes:
foo
.foo
and bar
.bar
.
bar
.bar
, regardless of any other classes listed.If you're only getting these to manually pass into df.set_index()
, that's unnecessary. Just directly do df.set_index['your_col_name', drop=False]
, already.
It's very rare in pandas that you need to get an index as a Python list (unless you're doing something pretty funky, or else passing them back to NumPy), so if you're doing this a lot, it's a code smell that you're doing something wrong.
You could create an extension method to add all property values through reflection:
public static DataSet ToDataSet<T>(this IList<T> list)
{
Type elementType = typeof(T);
DataSet ds = new DataSet();
DataTable t = new DataTable();
ds.Tables.Add(t);
//add a column to table for each public property on T
foreach(var propInfo in elementType.GetProperties())
{
t.Columns.Add(propInfo.Name, propInfo.PropertyType);
}
//go through each property on T and add each value to the table
foreach(T item in list)
{
DataRow row = t.NewRow();
foreach(var propInfo in elementType.GetProperties())
{
row[propInfo.Name] = propInfo.GetValue(item, null);
}
}
return ds;
}
Consider:
print __name__
The output for the above is __main__
.
if __name__ == "__main__":
print "direct method"
The above statement is true and prints "direct method". Suppose if they imported this class in another class it doesn't print "direct method" because, while importing, it will set __name__ equal to "first model name"
.
It is not a compilation error at all! You can import a default package to a default package class only.
If you do so for another package, then it shall be a compilation error.
The div
tag is a block element, causing that behavior.
You should use a span
element instead, which is inline.
If you really want to use div
, add style="display: inline"
. (You can also put that in a CSS rule)
- It is a very easy to use method in C++11.
- We can use std::chrono::high_resolution_clock from header
- We can write a method to print the method execution time in a much readable form.
For example, to find the all the prime numbers between 1 and 100 million, it takes approximately 1 minute and 40 seconds. So the execution time get printed as:
Execution Time: 1 Minutes, 40 Seconds, 715 MicroSeconds, 715000 NanoSeconds
The code is here:
#include <iostream>
#include <chrono>
using namespace std;
using namespace std::chrono;
typedef high_resolution_clock Clock;
typedef Clock::time_point ClockTime;
void findPrime(long n, string file);
void printExecutionTime(ClockTime start_time, ClockTime end_time);
int main()
{
long n = long(1E+8); // N = 100 million
ClockTime start_time = Clock::now();
// Write all the prime numbers from 1 to N to the file "prime.txt"
findPrime(n, "C:\\prime.txt");
ClockTime end_time = Clock::now();
printExecutionTime(start_time, end_time);
}
void printExecutionTime(ClockTime start_time, ClockTime end_time)
{
auto execution_time_ns = duration_cast<nanoseconds>(end_time - start_time).count();
auto execution_time_ms = duration_cast<microseconds>(end_time - start_time).count();
auto execution_time_sec = duration_cast<seconds>(end_time - start_time).count();
auto execution_time_min = duration_cast<minutes>(end_time - start_time).count();
auto execution_time_hour = duration_cast<hours>(end_time - start_time).count();
cout << "\nExecution Time: ";
if(execution_time_hour > 0)
cout << "" << execution_time_hour << " Hours, ";
if(execution_time_min > 0)
cout << "" << execution_time_min % 60 << " Minutes, ";
if(execution_time_sec > 0)
cout << "" << execution_time_sec % 60 << " Seconds, ";
if(execution_time_ms > 0)
cout << "" << execution_time_ms % long(1E+3) << " MicroSeconds, ";
if(execution_time_ns > 0)
cout << "" << execution_time_ns % long(1E+6) << " NanoSeconds, ";
}
Instead of using map
, I'd recommend using a generator expression with the capability of join
to accept an iterator:
def get_nice_string(list_or_iterator):
return "[" + ", ".join( str(x) for x in list_or_iterator) + "]"
Here, join
is a member function of the string class str
. It takes one argument: a list (or iterator) of strings, then returns a new string with all of the elements concatenated by, in this case, ,
.
I found that following these instructions helped with finding what the problem was. For me, that was the killer, not knowing what was broken.
Quoting from the link
In Tomcat 6 or above, the default logger is the”java.util.logging” logger and not Log4J. So if you are trying to add a “log4j.properties” file – this will NOT work. The Java utils logger looks for a file called “logging.properties” as stated here: http://tomcat.apache.org/tomcat-6.0-doc/logging.html
So to get to the debugging details create a “logging.properties” file under your”/WEB-INF/classes” folder of your WAR and you’re all set.
And now when you restart your Tomcat, you will see all of your debugging in it’s full glory!!!
Sample logging.properties file:
org.apache.catalina.core.ContainerBase.[Catalina].level = INFO
org.apache.catalina.core.ContainerBase.[Catalina].handlers = java.util.logging.ConsoleHandler
Class Parent cannot be declared because it is PHP reserved keyword so in effect it's already in use
The simplest way to install jq
and test that it works is through brew and then using the simplest filter that merely formats the JSON
brew
is the easiest way to manage packages on a mac:
brew install jq
Need brew
? Run the following command:
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Failing that: instructions to install and use are on https://brew.sh/
The .
filter takes its input and produces it unchanged as output. This is the identity operator. (quote the docs)
echo '{ "name":"John", "age":31, "city":"New York" }' | jq .
The result should appear like so in your terminal:
{
"name": "John",
"age": 31,
"city": "New York"
}
I also landed in a similar situation. Use interactive rebase using the command below and while selecting, drop 3rd commit.
git rebase -i remote/branch
They're examples provided by the Android team, if you've already loaded Samples, you can import Home screen replacement sample by following these steps.
File > New > Other >Android > Android Sample Project > Android x.x > Home > Finish
But if you do not have samples loaded, then download it using the below steps
Windows > Android SDK Manager > chooses "Sample for SDK" for SDK you need it > Install package > Accept License > Install
None of these solutions has helped me in my Electron App.
My solution (workaround):
npm install jquery
In your index.js
file:
var jQuery = $ = require('jquery');
In your .js
files write yours jQuery functions in this way:
jQuery(document).ready(function() {
There are actually a few ways this can be done:
1: Download
You can download the latest version of jQuery and then include it in your page with a standard HTML script tag. This can be done within the master or an individual page.
HTML5
<script src="/scripts/jquery-2.1.0.min.js"></script>
HTML4
<script src="/scripts/jquery-2.1.0.min.js" type="text/javascript"></script>
2: Content Delivery Network
You can include jQuery to your site using a CDN (Content Delivery Network) such as Google's. This should help reduce page load times if the user has already visited a site using the same version from the same CDN.
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
3: NuGet Package Manager
Lastly, (my preferred) use NuGet which is shipped with Visual Studio and Visual Studio Express. This is accessed from right-clicking on your project and clicking Manage NuGet Packages.
NuGet is an open source Library Package Manager that comes as a Visual Studio extension and that makes it very easy to add, remove, and update external libraries in your Visual Studio projects and websites. Beginning ASP.NET 4.5 in C# and VB.NET, WROX, 2013
Once installed, a new Folder group will appear in your Solution Explorer called Scripts
. Simply drag and drop the file you wish to include onto your page of choice.
This method is ideal for larger projects because if you choose to remove the files, or change versions later (though the package manager) if will automatically remove/update any reference to that file within your project.
The only downside to this approach is it does not use a CDN to host the file so page load time may be slightly slower the first time the user visits your site.
In my case it was a folder with olders DLLs of the same name that those wich were referenced in my .csproj file although the path was explicitly given they were somehow included therefore the several versions of the same DLLs were in conflict.
Be careful while working with android contact list.
Reading contact list in above methods work on most android devices except HTC One and Sony Xperia. It wasted my six weeks trying to figure out what is wrong!
Most tutorials available online are almost similar - first read "ALL" contacts, then show in Listview
with ArrayAdapter
. This is not memory efficient solution. Instead of looking for solutions on other websites first, have a look at developer.android.com. If any solution is not available on developer.android.com you should look somewhere else.
The solution is to use CursorAdapter
instead of ArrayAdapter
for retrieving contact list. Using ArrayAdapter
would work on most devices, but it's not efficient. The CursorAdapter
retrieves only a portion of contact list at run time while the ListView
is being scrolled.
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
...
// Gets the ListView from the View list of the parent activity
mContactsList =
(ListView) getActivity().findViewById(R.layout.contact_list_view);
// Gets a CursorAdapter
mCursorAdapter = new SimpleCursorAdapter(
getActivity(),
R.layout.contact_list_item,
null,
FROM_COLUMNS, TO_IDS,
0);
// Sets the adapter for the ListView
mContactsList.setAdapter(mCursorAdapter);
}
Retrieving a List of Contacts: Retrieving a List of Contacts
In case anyone is still confused - if you are on a Mac, do the following:
open .bash_profile
export PYTHONPATH=$PYTHONPATH:foo/bar
You could store by creating an object that hold a string value number to store in an array list.
by example: BigInt objt = new BigInt("999999999999999999999999999999999999999999999999999");
objt is created by the constructor of BigInt class. Inside the class look like.
BigInt{
ArrayList<Integer> myNumber = new ArrayList <Integer>();
public BigInt(){}
public BigInt(String number){ for(int i; i<number.length; i++){ myNumber.add(number.indexOf(i)); } }
}
Try ["points.bean.pointsBase"]
<Button Content="Click" Width="200" Height="50">
<Button.Style>
<Style TargetType="{x:Type Button}">
<Setter Property="Background" Value="LightBlue" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="Border" Background="{TemplateBinding Background}">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="LightGreen" TargetName="Border" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Button.Style>
Actually johann, the #
indicates that it's a preprocessor directive, which basically means it tells the IDE what to do.
In the case of using #region
and #endregion
in your code, it makes NO difference in the final code whether it's there or not. Can you really call it a language element if using it changes nothing?
Apart from that, java doesn't have preprocessor directives, which means the option of code folding is defined on a per-ide basis, in netbeans for example with a //< code-fold> statement
PHP 7 improved query.........
$sql = mysqli_query($conn, "SELECT * from users WHERE user_uid = '$uid'");
if (mysqli_num_rows($sql) > 0) {
echo 'Username taken.';
}
You can do it all within .NET 3.5 using DeflateStream. The thing lacking in .NET 3.5 is the ability to process the file header sections that are used to organize the zipped files. PKWare has published this information, which you can use to process the zip file after you create the structures that are used. It is not particularly onerous, and it a good practice in tool building without using 3rd party code.
It isn't a one line answer, but it is completely doable if you are willing and able to take the time yourself. I wrote a class to do this in a couple of hours and what I got from that is the ability to zip and unzip files using .NET 3.5 only.
The download from java.com
which installs in /Library/Internet Plug-Ins
is only the JRE, for development you probably want to download the JDK from http://www.oracle.com/technetwork/java/javase/downloads/index.html and install that instead. This will install the JDK at /Library/Java/JavaVirtualMachines/jdk1.7.0_<something>.jdk/Contents/Home
which you can then add to Eclipse via Preferences -> Java -> Installed JREs.
Instead of catching the error, wouldn't it be possible to test in or before the myplotfunction()
function first if the error will occur (i.e. if the breaks are unique) and only plot it for those cases where it won't appear?!
In my case I had to register the .dll.
To do so, open cmd.exe
(the console) with admin rights and type:
regsvr32 "foo.dll"
It is Safari specific, at least at time of writing, being introduced in Safari 9.0. From the "What's new in Safari?" documentation for Safari 9.0:
Viewport Changes
Viewport meta tags using
"width=device-width"
cause the page to scale down to fit content that overflows the viewport bounds. You can override this behavior by adding"shrink-to-fit=no"
to your meta tag as shown below. The added value will prevent the page from scaling to fit the viewport.
<meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no">
In short, adding this to the viewport meta tag restores pre-Safari 9.0 behaviour.
Here's a worked visual example which shows the difference upon loading the page in the two configurations.
The red section is the width of the viewport and the blue section is positioned outside the initial viewport (eg left: 100vw
). Note how in the first example the page is zoomed to fit when shrink-to-fit=no
is omitted (thus showing the out-of-viewport content) and the blue content remains off screen in the latter example.
The code for this example can be found at https://codepen.io/davidjb/pen/ENGqpv.
I ended up just making a short and sweet fsize
function(note, no error checking)
int fsize(FILE *fp){
int prev=ftell(fp);
fseek(fp, 0L, SEEK_END);
int sz=ftell(fp);
fseek(fp,prev,SEEK_SET); //go back to where we were
return sz;
}
It's kind of silly that the standard C library doesn't have such a function, but I can see why it'd be difficult as not every "file" has a size(for instance /dev/null
)
Use <property name="build.sysclasspath" value="last"/>
in your build.xml file
For more details search includeAntRuntime
in Ant javac
Other possible values could be found here
The runas /netonly /user:domain\username program.exe
command only worked for me on Windows 10
when running the command batch as regular user I got the wrong password issue mentioned by some users on previous comments.
We use DBGhost to manage our SQL database. Then you put your scripts to build a new database in your version control, and it'll either build a new database, or upgrade any existing database to the schema in version control. That way you don't have to worry about creating change scripts (although you can still do that, if for example you want to change the data type of a column and need to convert data).
You can also use -match against a Regular expression. Ex:
if ($dbUserName -match ".{8}" )
{
Write-Output " Please enter more than 8 characters "
$dbUserName=read-host " Re-enter database user name"
}
Also if you're like me and like your curly braces to be in the same horizontal position for your code blocks, you can put that on a new line, since it's expecting a code block it will look on next line. In some commands where the first curly brace has to be in-line with your command, you can use a grave accent marker (`) to tell powershell to treat the next line as a continuation.
The easiest way to change the background color of the jumbotron
If you want to change the background color of your jumbotron, then for that you can apply a background color to it using one of your custom class.
HTML Code:
<div class="jumbotron myclass">
<h1>My Heading</h1>
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry.</p>
</div>
CSS Code:
<style>
.myclass{
background-color: red;
}
</style>
You can either use the readonly
or the disabled
attribute. Note that when disabled, the input's value will not be submitted when submitting the form.
<input id="price_to" value="price to" readonly="readonly">
<input id="price_to" value="price to" disabled="disabled">
Unfortunately, in a cross platform, cross compiler environment, there is no single reliable method to do this purely at compile time.
Therefore, the only reliable method is to combine 3 simple checks:
Choose any method to set the required #define variable. I suggest the method from @JaredPar:
// Check windows
#if _WIN32 || _WIN64
#if _WIN64
#define ENV64BIT
#else
#define ENV32BIT
#endif
#endif
// Check GCC
#if __GNUC__
#if __x86_64__ || __ppc64__
#define ENV64BIT
#else
#define ENV32BIT
#endif
#endif
In main(), double check to see if sizeof() makes sense:
#if defined(ENV64BIT)
if (sizeof(void*) != 8)
{
wprintf(L"ENV64BIT: Error: pointer should be 8 bytes. Exiting.");
exit(0);
}
wprintf(L"Diagnostics: we are running in 64-bit mode.\n");
#elif defined (ENV32BIT)
if (sizeof(void*) != 4)
{
wprintf(L"ENV32BIT: Error: pointer should be 4 bytes. Exiting.");
exit(0);
}
wprintf(L"Diagnostics: we are running in 32-bit mode.\n");
#else
#error "Must define either ENV32BIT or ENV64BIT".
#endif
The general rule is "every #define must end in a #else which generates an error".
#if defined(ENV64BIT)
// 64-bit code here.
#elif defined (ENV32BIT)
// 32-bit code here.
#else
// INCREASE ROBUSTNESS. ALWAYS THROW AN ERROR ON THE ELSE.
// - What if I made a typo and checked for ENV6BIT instead of ENV64BIT?
// - What if both ENV64BIT and ENV32BIT are not defined?
// - What if project is corrupted, and _WIN64 and _WIN32 are not defined?
// - What if I didn't include the required header file?
// - What if I checked for _WIN32 first instead of second?
// (in Windows, both are defined in 64-bit, so this will break codebase)
// - What if the code has just been ported to a different OS?
// - What if there is an unknown unknown, not mentioned in this list so far?
// I'm only human, and the mistakes above would break the *entire* codebase.
#error "Must define either ENV32BIT or ENV64BIT"
#endif
Comment from @AI.G
:
4 years later (don't know if it was possible before) you can convert the run-time check to compile-time one using static assert: static_assert(sizeof(void*) == 4);. Now it's all done at compile time :)
Incidentially, the rules above can be adapted to make your entire codebase more reliable:
The reason why this works well is that it forces you to think of every single case in advance, and not rely on (sometimes flawed) logic in the "else" part to execute the correct code.
I used this technique (among many others) to write a 30,000 line project that worked flawlessly from the day it was first deployed into production (that was 12 months ago).
screen -S your_session_name
Ctrl+a, : sessionname YOUR_SESSION_NAME Enter
You must be inside the session
Tips about writing micro benchmarks from the creators of Java HotSpot:
Rule 0: Read a reputable paper on JVMs and micro-benchmarking. A good one is Brian Goetz, 2005. Do not expect too much from micro-benchmarks; they measure only a limited range of JVM performance characteristics.
Rule 1: Always include a warmup phase which runs your test kernel all the way through, enough to trigger all initializations and compilations before timing phase(s). (Fewer iterations is OK on the warmup phase. The rule of thumb is several tens of thousands of inner loop iterations.)
Rule 2: Always run with -XX:+PrintCompilation
, -verbose:gc
, etc., so you can verify that the compiler and other parts of the JVM are not doing unexpected work during your timing phase.
Rule 2.1: Print messages at the beginning and end of timing and warmup phases, so you can verify that there is no output from Rule 2 during the timing phase.
Rule 3: Be aware of the difference between -client
and -server
, and OSR and regular compilations. The -XX:+PrintCompilation
flag reports OSR compilations with an at-sign to denote the non-initial entry point, for example: Trouble$1::run @ 2 (41 bytes)
. Prefer server to client, and regular to OSR, if you are after best performance.
Rule 4: Be aware of initialization effects. Do not print for the first time during your timing phase, since printing loads and initializes classes. Do not load new classes outside of the warmup phase (or final reporting phase), unless you are testing class loading specifically (and in that case load only the test classes). Rule 2 is your first line of defense against such effects.
Rule 5: Be aware of deoptimization and recompilation effects. Do not take any code path for the first time in the timing phase, because the compiler may junk and recompile the code, based on an earlier optimistic assumption that the path was not going to be used at all. Rule 2 is your first line of defense against such effects.
Rule 6: Use appropriate tools to read the compiler's mind, and expect to be surprised by the code it produces. Inspect the code yourself before forming theories about what makes something faster or slower.
Rule 7: Reduce noise in your measurements. Run your benchmark on a quiet machine, and run it several times, discarding outliers. Use -Xbatch
to serialize the compiler with the application, and consider setting -XX:CICompilerCount=1
to prevent the compiler from running in parallel with itself. Try your best to reduce GC overhead, set Xmx
(large enough) equals Xms
and use UseEpsilonGC
if it is available.
Rule 8: Use a library for your benchmark as it is probably more efficient and was already debugged for this sole purpose. Such as JMH, Caliper or Bill and Paul's Excellent UCSD Benchmarks for Java.
Late to the party, but I think this addition might be useful for people working with rmarkdown
. In rmarkdown
there is built-in support for references to headers in your document.
Any header defined by
# Header
can be referenced by
get me back to that [header](#header)
The following is a minimal standalone .rmd
file that shows this behavior. It can be knitted to .pdf
and .html
.
---
title: "references in rmarkdown"
output:
html_document: default
pdf_document: default
---
# Header
Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text.
Go back to that [header](#header).
Responsive with CSS You can make the Iframe responsive with the following CSS codes.
.map {
position: relative;
padding-bottom: 26.25%;
padding-top: 30px;
height: 0;
overflow: hidden;
}
.map iframe,
.map object,
.map embed {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
Responsive with JavaScript
This possible through window.resize
event and you can apply this on google map like google.maps.event.addDomListener(window, 'resize', initialize);
Consider the following example:
function initialize() {
var mapOptions = {
zoom: 9,
center: new google.maps.LatLng(28.9285745, 77.09149350000007),
mapTypeId: google.maps.MapTypeId.TERRAIN
};
var map = new google.maps.Map(document.getElementById('location-canvas'), mapOptions);
var marker = new google.maps.Marker({
map: map,
draggable: false,
position: new google.maps.LatLng(28.9285745, 77.09149350000007)
});
}
google.maps.event.addDomListener(window, 'resize', initialize);
Take a look for more details - https://webomnizz.com/how-to-make-responsive-google-map-with-google-map-api/
You did it the wrong way around. You are meant to reset first, to unstage the file, then checkout, to revert local changes.
Try this:
$ git reset foo/bar.txt
$ git checkout foo/bar.txt
Have you actually gone to your references and added a .NET reference to the 'Microsoft.Office.Core' library? If you downloaded the example application, the answer would be yes. If that is the case, follow the advice in the article:
If your system does not have Microsoft Office Outlook 2003 you may have to change the References used by the "OutlookConnector" project. That is to say, if you received a build error described as "The type of namespace name 'Outlook' could not be found", you probably don't have Office 2003. Simply expand the project references, remove the afflicted items, and add the COM Library appropriate for your system. If someone has a dynamic way to handle this, I'd be curious to see you've done.
That should solve your problem. If not, let us know.
We have seen this same behavior in the past. It turned out that, for some crazy reason, if a NullPointerException occurred at the same place in the code multiple times, after a while using Log.error(String, Throwable)
would stop including full stack traces.
Try looking further back in your log. You may find the culprit.
EDIT: this bug sounds relevant, but it was fixed so long ago it's probably not the cause.
List is just an interface. The question is: is your actual List implementation serializable? Speaking about the standard List implementations (ArrayList, LinkedList) from the Java run-time, most of them actually are already.