(When trying to find out how to use kdiff3 from WSL git I ended up here and got the final pieces, so I'll post my solution for anyone else also stumbling in here while trying to find that answer)
With Windows update 1903 it is a lot easier; just use wslpath and there is no need to share TMP from Windows to WSL since the Windows side now has access to the WSL filesystem via \wsl$:
[merge]
renormalize = true
guitool = kdiff3
[diff]
tool = kdiff3
[difftool]
prompt = false
[difftool "kdiff3"]
# Unix style paths must be converted to windows path style
cmd = kdiff3.exe \"`wslpath -w $LOCAL`\" \"`wslpath -w $REMOTE`\"
trustExitCode = false
[mergetool]
keepBackup = false
prompt = false
[mergetool "kdiff3"]
path = kdiff3.exe
trustExitCode = false
Steps for using kdiff3 installed on Windows 10 as diff/merge tool for git in WSL:
# If TMP is passed via WSLENV then use it as TMPDIR
[[ ! -z "$WSLENV" && ! -z "$TMP" ]] && export TMPDIR=$TMP
[merge]
renormalize = true
guitool = kdiff3
[diff]
tool = kdiff3
[difftool]
prompt = false
[difftool "kdiff3"]
#path = kdiff3.exe
# Unix style paths must be converted to windows path style by changing '/mnt/c/' or '/c/' to 'c:/'
cmd = kdiff3.exe \"`echo $LOCAL | sed 's_^\\(/mnt\\)\\?/\\([a-z]\\)/_\\2:/_'`\" \"`echo $REMOTE | sed 's_^\\(/mnt\\)\\?/\\([a-z]\\)/_\\2:/_'`\"
trustExitCode = false
[mergetool]
keepBackup = false
prompt = false
[mergetool "kdiff3"]
path = kdiff3.exe
trustExitCode = false
If you'd like to see side-by-side diffs in a browser without involving GitHub, you might enjoy git webdiff, a drop-in replacement for git diff
:
$ pip install webdiff
$ git webdiff
This offers a number of advantages over traditional GUI difftools like tkdiff
in that it can give you syntax highlighting and show image diffs.
Read more about it here.
I am a .NET developer, and have used Git and Visual Studio for years. My strong recommendation is set line endings to true. And do it as early as you can in the lifetime of your Repository.
That being said, I HATE that Git changes my line endings. A source control should only save and retrieve the work I do, it should NOT modify it. Ever. But it does.
What will happen if you don't have every developer set to true, is ONE developer eventually will set to true. This will begin to change the line endings of all of your files to LF in your repo. And when users set to false check those out, Visual Studio will warn you, and ask you to change them. You will have 2 things happen very quickly. One, you will get more and more of those warnings, the bigger your team the more you get. The second, and worse thing, is that it will show that every line of every modified file was changed(because the line endings of every line will be changed by the true guy). Eventually you won't be able to track changes in your repo reliably anymore. It is MUCH easier and cleaner to make everyone keep to true, than to try to keep everyone false. As horrible as it is to live with the fact that your trusted source control is doing something it should not. Ever.
KDiff3 is not XML specific, but it is free. It does a nice job of comparing and merging text files.
git config --global mergetool.keepBackup false
This should work for Beyond Compare (as mergetool) too
Kdiff3 conflict resolution algorithm is really impressive.
Even when subversion indicates a conflict, Kdiff3 solves it automatically. There's versions for Windows and Linux with the same interface. It is possible to integrate it with Tortoise and with your linux shell.
It is in the list of my favorite open source software. One of the first tools I install in any machine.
You can configure it as the default diff tool in Subversion, Git, Mercurial, and ClearCase. It also solves almost all the ClearCase conflicts. In Windows, it has a nice integration with windows explorer: select two files and right click to compare them, or right click to 'save to later' a file, and then select another one to compare.
The merged file is editable. Has slick keyboard shortcuts.
You can also use it compare and merge directories. See:
An advanced feature is to use regular expressions for defining automatic merges.
My only annoyance is that it is a little difficult to compile if it isn't present in your favorite distro repository.
IntelliJ IDEA has a sophisticated merge conflict resolution tool with the Resolve magic wand, which greatly simplifies merging:
Since you have master page and your control is in content place holder, Your control id will be generated different in client side. you need to do like...
var TestVar = document.getElementById('<%= txt_model_code.ClientID %>').value;
Javascript runs on client side and to get value you have to provide client id of your control
Following document says only the owner of the channel can do this via standard youtube interface: https://developers.google.com/youtube/2.0/developers_guide_protocol_captions?hl=en
Cheap fix: You can click on the "interactive transscript" button - and copy the content this way. Of course you lose the milliseconds this way.
Extremely cheap fix: A shared youtube account - so that multiple people can edit and upload caption files.
Challenging solution: The youtube API allows downloading and uploading of caption files via HTTP... You may write a youtube API application to provide a browser user interface for uploading or downloading for ANY user or particular users.
Here is an example project for this in java http://apiblog.youtube.com/2011/01/youtube-captions-uploader-web-app.html
Here is very simple example of a working upload for everybody: http://yt-captions-uploader.appspot.com/
Use npm outdated
to see Current and Latest version of all packages.
Then npm i packageName@versionNumber
to install specific version : example npm i [email protected]
.
Or npm i packageName@latest
to install latest version : example npm i browser-sync@latest
.
You can "persist" the state using local storage as Omar Suggest, but it should be done once the state has been set. For that you need to pass a callback to the setState
function and you need to serialize and deserialize the objects put into local storage.
constructor(props) {
super(props);
this.state = {
allProjects: JSON.parse(localStorage.getItem('allProjects')) || []
}
}
addProject = (newProject) => {
...
this.setState({
allProjects: this.state.allProjects.concat(newProject)
},() => {
localStorage.setItem('allProjects', JSON.stringify(this.state.allProjects))
});
}
names=[line.strip() for line in open('names.txt')]
A simple way to do it using python :
Python
import numpy as np
import imageio
image = imageio.imread(r'[image-path]', as_gray=True)
# getting the threshold value
thresholdValue = np.mean(image)
# getting the dimensions of the image
xDim, yDim = image.shape
# turn the image into a black and white image
for i in range(xDim):
for j in range(yDim):
if (image[i][j] > thresholdValue):
image[i][j] = 255
else:
image[i][j] = 0
I think your answer will be background-size:cover
.
.ui-page
{
background: #000;
background-image:url(image.gif);
background-size:cover;
}
This is how I did a similar thing. I have tiles that are thumbnails to YouTube videos. When I click the tile, it redirects me to a 'player' page that uses the 'video_id' to render the correct video to the page.
<GridTile
key={video_id}
title={video_title}
containerElement={<Link to={`/player/${video_id}`}/>}
>
ETA: Sorry, just noticed that you didn't want to use the LINK or REDIRECT components for some reason. Maybe my answer will still help in some way. ; )
As mentioned above, there are issues with using the top-most scope in your script file. Here is another issue: The script file might be run from a context that is not the global context in some run-time environment.
It has been proposed to assign the global to window
directly. But that is also run-time dependent and does not work in Node etc. It goes to show that portable global variable management needs some careful consideration and extra effort. Maybe they will fix it in future ECMS versions!
For now, I would recommend something like this to support proper global management for all run-time environments:
/**
* Exports the given object into the global context.
*/
var exportGlobal = function(name, object) {
if (typeof(global) !== "undefined") {
// Node.js
global[name] = object;
}
else if (typeof(window) !== "undefined") {
// JS with GUI (usually browser)
window[name] = object;
}
else {
throw new Error("Unkown run-time environment. Currently only browsers and Node.js are supported.");
}
};
// export exportGlobal itself
exportGlobal("exportGlobal", exportGlobal);
// create a new global namespace
exportGlobal("someothernamespace", {});
It's a bit more typing, but it makes your global variable management future-proof.
Disclaimer: Part of this idea came to me when looking at previous versions of stacktrace.js.
I reckon, one can also use Webpack or other tools to get more reliable and less hackish detection of the run-time environment.
I unable to comment on the top answer, but Excel actually lets you do this without adding the ugly conditional logic.
Conditional formatting is automatically applied to any input that isn't an error, so you can achieve the same effect as:
=NOT(ISERROR(MATCH(A1,$B$1:$B$1000,0)))
With this:
= MATCH(A1,$B$1:$B$1000,0)))
If the above is applied to your data, A1 will be formatted if it matches any cell in $B$1:$B$1000, as any non-match will return an error.
On click BUTTON action
if(isset($_POST['save_btn']))
{
//write some of your code here, if necessary
echo'<script> window.location="B.php"; </script> ';
}
The limitation of the async
methods not accepting out
parameters applies only to the compiler-generated async methods, these declared with the async
keyword. It doesn't apply to hand-crafted async methods. In other words it is possible to create Task
returning methods accepting out
parameters. For example lets say that we already have a ParseIntAsync
method that throws, and we want to create a TryParseIntAsync
that doesn't throw. We could implement it like this:
public static Task<bool> TryParseIntAsync(string s, out Task<int> result)
{
var tcs = new TaskCompletionSource<int>();
result = tcs.Task;
return ParseIntAsync(s).ContinueWith(t =>
{
if (t.IsFaulted)
{
tcs.SetException(t.Exception.InnerException);
return false;
}
tcs.SetResult(t.Result);
return true;
}, default, TaskContinuationOptions.None, TaskScheduler.Default);
}
Using the TaskCompletionSource
and the ContinueWith
method is a bit awkward, but there is no other option since we can't use the convenient await
keyword inside this method.
Usage example:
if (await TryParseIntAsync("-13", out var result))
{
Console.WriteLine($"Result: {await result}");
}
else
{
Console.WriteLine($"Parse failed");
}
Update: If the async logic is too complex to be expressed without await
, then it could be encapsulated inside a nested asynchronous anonymous delegate. A TaskCompletionSource
would still be needed for the out
parameter. It is possible that the out
parameter could be completed before
the completion of the main task, as in the example bellow:
public static Task<string> GetDataAsync(string url, out Task<int> rawDataLength)
{
var tcs = new TaskCompletionSource<int>();
rawDataLength = tcs.Task;
return ((Func<Task<string>>)(async () =>
{
var response = await GetResponseAsync(url);
var rawData = await GetRawDataAsync(response);
tcs.SetResult(rawData.Length);
return await FilterDataAsync(rawData);
}))();
}
This example assumes the existence of three asynchronous methods GetResponseAsync
, GetRawDataAsync
and FilterDataAsync
that are called
in succession. The out
parameter is completed on the completion of the second method. The GetDataAsync
method could be used like this:
var data = await GetDataAsync("http://example.com", out var rawDataLength);
Console.WriteLine($"Data: {data}");
Console.WriteLine($"RawDataLength: {await rawDataLength}");
Awaiting the data
before awaiting the rawDataLength
is important in this simplified example, because in case of an exception the out
parameter will never be completed.
I get this error from the sshfs command from Fedora 17 linux to debian linux on the Mindstorms EV3 brick over the LAN and through a wireless connection.
Bash command:
el@defiant /mnt $ sshfs [email protected]:/root -p 22 /mnt/ev3
fuse: bad mount point `/mnt/ev3': Transport endpoint is not connected
This is remedied with the following command and trying again:
fusermount -u /mnt/ev3
These additional sshfs options prevent the above error from concurring:
sudo sshfs -d -o allow_other -o reconnect -o ServerAliveInterval=15 [email protected]:/var/lib/redmine/plugins /mnt -p 12345 -C
In order to use allow_other
above, you need to uncomment the last line in /etc/fuse.conf
:
# Set the maximum number of FUSE mounts allowed to non-root users.
# The default is 1000.
#
#mount_max = 1000
# Allow non-root users to specify the 'allow_other' or 'allow_root'
# mount options.
#
user_allow_other
Source: http://slopjong.de/2013/04/26/sshfs-transport-endpoint-is-not-connected/
I usually include a small function in my objects which allows me to dump to array or json or xml. Something like:
public function exportObj($method = 'a')
{
if($method == 'j')
{
return json_encode(get_object_vars($this));
}
else
{
return get_object_vars($this);
}
}
either way, get_object_vars()
is probably useful to you.
You can solve with snprintf and malloc.
char c_buff[50];
u8_number_val[] = { 0xbb, 0xcc, 0xdd, 0x0f, 0xef, 0x0f, 0x0e, 0x0d, 0x0c };
char *s_temp = malloc(u8_size * 2 + 1);
for (uint8_t i = 0; i < u8_size; i++)
{
snprintf(s_temp + i * 2, 3, "%02x", u8_number_val[i]);
}
snprintf(c_buff, strlen(s_temp)+1, "%s", s_temp );
printf("%s\n",c_buff);
free(s);
OUT: bbccdd0fef0f0e0d0c
No, there is no difference. But I prefer using int[] array
as it is more readable.
There is also another option. Adobe Acrobat Pro is also able to display the internal tree structure of the PDF.
On top Adobe Acrobat Pro can also display the internal structure of the Document Fonts in the PDF most of other "PDF tree structure viewer" don't have this otion
Verify(a).aFunc(eq(b))
In pseudocode:
When in the instance
a
- a function namedaFunc
is called.Verify this call got an argument which is equal to
b
.
$("#customFile").change(function() {
var fileName = $("#customFile").val();
if(fileName) { // returns true if the string is not empty
$('.picture-selected').addClass('disable-inputs');
$('#btn').removeClass('disabled');
} else { // no file was selected
$('.picture-selected').removeClass('disable-inputs');
$('#btn').addClass('disabled');
}
});
This question is pretty old but I'll add the solution I found the be the simplest at present.
library(reshape2)
before = data.frame(attr = c(1,30,4,6), type=c('foo_and_bar','foo_and_bar_2'))
newColNames <- c("type1", "type2")
newCols <- colsplit(before$type, "_and_", newColNames)
after <- cbind(before, newCols)
after$type <- NULL
after
Answer to my question (after several Google searches) revealed the following:
$ curl https://pkgconfig.freedesktop.org/releases/pkg-config-0.29.tar.gz -o pkgconfig.tgz
$ tar -zxf pkgconfig.tgz && cd pkg-config-0.29
$ ./configure && make install
from the following link: Link showing above
Thanks to everyone for their comments, and sorry for my linux/OSX ignorance!
Doing this fixed my issues as mentioned above.
Here is my take: these functions convert a UTF8 string to a proper HEX without the extra zeroes padding. A real UTF8 string has characters with 1, 2, 3 and 4 bytes length.
While working on this I found a couple key things that solved my problems:
str.split('')
doesn't handle multi-byte characters like emojis correctly. The proper/modern way to handle this is with Array.from(str)
encodeURIComponent()
and decodeURIComponent()
are great tools to convert between string and hex. They are pretty standard, they handle UTF8 correctly.c.charCodeAt(0).toString(16)
works perfectly for those function utf8ToHex(str) {
return Array.from(str).map(c =>
c.charCodeAt(0) < 128 ? c.charCodeAt(0).toString(16) :
encodeURIComponent(c).replace(/\%/g,'').toLowerCase()
).join('');
},
function hexToUtf8: function(hex) {
return decodeURIComponent('%' + hex.match(/.{1,2}/g).join('%'));
}
I used your idea, and found the difference and then just divided by 365 days. Worked a treat.
=MINUS(F2,TODAY())/365
Then I shifted my cell properties to not display decimals.
The HTML parser simply doesn't interpret the inlined javascript like this.
You may do this :
<td><input type="checkbox" id="repriseCheckBox" name="repriseCheckBox"/></td>
<script>document.getElementById("repriseCheckBox").disabled=checkStat == 1 ? true : false;</script>
Use this,
AppCompatActivity activity = (AppCompatActivity) view.getContext();
Fragment myFragment = new MyFragment();
activity.getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, myFragment).addToBackStack(null).commit();
You can use openopt package and its NLP method. It has many dynamic programming algorithms to solve nonlinear algebraic equations consisting:
goldenSection, scipy_fminbound, scipy_bfgs, scipy_cg, scipy_ncg, amsg2p, scipy_lbfgsb, scipy_tnc, bobyqa, ralg, ipopt, scipy_slsqp, scipy_cobyla, lincher, algencan, which you can choose from.
Some of the latter algorithms can solve constrained nonlinear programming problem.
So, you can introduce your system of equations to openopt.NLP() with a function like this:
lambda x: x[0] + x[1]**2 - 4, np.exp(x[0]) + x[0]*x[1]
If it is for binding, then you can reference indexers from XAML
Text="{Binding [FullName]}"
Here it is referencing the class indexer with the key "FullName"
Microsoft API Code Pack. ShellObjectWatcher class.
I've seen the short-circuiting behaviour of the &&
operator used to achieve this, although people who are not accustomed to this may find it hard to read or even call it an anti-pattern:
lemons && document.write("foo gave me a bar");
Personally, I'll often use single-line if
without brackets, like this:
if (lemons) document.write("foo gave me a bar");
If I need to add more statements in, I'll put the statements on the next line and add brackets. Since my IDE does automatic indentation, the maintainability objections to this practice are moot.
When your form is maximized, set its minimum size = max size, so user cannot resize it.
this.WindowState = FormWindowState.Maximized;
this.MinimumSize = this.Size;
this.MaximumSize = this.Size;
Create a layout-land
directory and put the landscape version of your layout XML file in that directory.
Why not just have a Year
property, which is perfectly fine?
Interfaces don't contain fields because fields represent a specific implementation of data representation, and exposing them would break encapsulation. Thus having an interface with a field would effectively be coding to an implementation instead of an interface, which is a curious paradox for an interface to have!
For instance, part of your Year
specification might require that it be invalid for ICar
implementers to allow assignment to a Year
which is later than the current year + 1 or before 1900. There's no way to say that if you had exposed Year
fields -- far better to use properties instead to do the work here.
With map (not as good, but another approach to the problem):
list(map(lambda x: x*5,[5, 10, 15, 20, 25]))
also, if you happen to be using numpy or numpy arrays, you could use this:
import numpy as np
list(np.array(x) * 5)
php.net says:
Microseconds (added in PHP 5.2.2). Note that
date()
will always generate000000
since it takes an integer parameter, whereasDateTime::format()
does support microseconds ifDateTime
was created with microseconds.
So use as simple:
$micro_date = microtime();
$date_array = explode(" ",$micro_date);
$date = date("Y-m-d H:i:s",$date_array[1]);
echo "Date: $date:" . $date_array[0]."<br>";
Recommended and use dateTime()
class from referenced:
$t = microtime(true);
$micro = sprintf("%06d",($t - floor($t)) * 1000000);
$d = new DateTime( date('Y-m-d H:i:s.'.$micro, $t) );
print $d->format("Y-m-d H:i:s.u"); // note at point on "u"
Note u
is microseconds (1 seconds = 1000000 µs).
Another example from php.net:
$d2=new DateTime("2012-07-08 11:14:15.889342");
Reference of dateTime()
on php.net
I've answered on question as short and simplify to author. Please see for more information to author: getting date format m-d-Y H:i:s.u from milliseconds
<a href="<?php echo $_SERVER['DOCUMENT_ROOT'].'/hello.html'; ?>">go with php</a>
<br />
<a href="/hello.html">go to with html</a>
Try this yourself and find that they are not exactly the same.
$_SERVER['DOCUMENT_ROOT']
renders an actual file path (on my computer running as it's own server, C:/wamp/www/
HTML's /
renders the root of the server url, in my case, localhost/
But C:/wamp/www/hello.html
and localhost/hello.html
are in fact the same file
You could try this:
int lengthChar(const char* chararray) {
int n = 0;
while(chararray[n] != '\0')
n ++;
return n;
}
replace:true
is DeprecatedFrom the Docs:
replace
([DEPRECATED!], will be removed in next major release - i.e. v2.0)specify what the template should replace. Defaults to
false
.
true
- the template will replace the directive's element.false
- the template will replace the contents of the directive's element.
-- AngularJS Comprehensive Directive API
From GitHub:
Caitp-- It's deprecated because there are known, very silly problems with
replace: true
, a number of which can't really be fixed in a reasonable fashion. If you're careful and avoid these problems, then more power to you, but for the benefit of new users, it's easier to just tell them "this will give you a headache, don't do it".
Note:
replace: true
is deprecated and not recommended to use, mainly due to the issues listed here. It has been completely removed in the new Angular.
transclude: element
in the replace template root can have unexpected effectsFor more information, see
Here is my easy solution, which works for all the API's:
private int previousLength;
private boolean backSpace;
// ...
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
previousLength = s.length();
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
backSpace = previousLength > s.length();
if (backSpace) {
// do your stuff ...
}
}
UPDATE 17.04.18 .
As pointed out in comments, this solution doesn't track the backspace press if EditText is empty (the same as most of the other solutions).
However, it's enough for most of the use cases.
P.S. If I had to create something similar today, I would do:
public abstract class TextWatcherExtended implements TextWatcher {
private int lastLength;
public abstract void afterTextChanged(Editable s, boolean backSpace);
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
lastLength = s.length();
}
@Override
public void afterTextChanged(Editable s) {
afterTextChanged(s, lastLength > s.length());
}
}
Then just use it as a regular TextWatcher:
editText.addTextChangedListener(new TextWatcherExtended() {
@Override
public void afterTextChanged(Editable s, boolean backSpace) {
// Here you are! You got missing "backSpace" flag
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// Do something useful if you wish.
// Or override it in TextWatcherExtended class if want to avoid it here
}
});
Assuming the ID is unique:
var result = xmldoc.Element("Customers")
.Elements("Customer")
.Single(x => (int?)x.Attribute("ID") == 2);
You could also use First
, FirstOrDefault
, SingleOrDefault
or Where
, instead of Single
for different circumstances.
One corner case to keep in mind, which surprised me when I first found out about it: Windows allows leading space characters in file names! For example, the following are all legal, and distinct, file names on Windows (minus the quotes):
"file.txt"
" file.txt"
" file.txt"
One takeaway from this: Use caution when writing code that trims leading/trailing whitespace from a filename string.
As Sotirios Delimanolis already pointed out in the comments, there are two options:
ResponseEntity
with error messageChange your method like this:
@RequestMapping(method = RequestMethod.GET)
public ResponseEntity getUser(@RequestHeader(value="Access-key") String accessKey,
@RequestHeader(value="Secret-key") String secretKey) {
try {
// see note 1
return ResponseEntity
.status(HttpStatus.CREATED)
.body(this.userService.chkCredentials(accessKey, secretKey, timestamp));
}
catch(ChekingCredentialsFailedException e) {
e.printStackTrace(); // see note 2
return ResponseEntity
.status(HttpStatus.FORBIDDEN)
.body("Error Message");
}
}
Note 1: You don't have to use the ResponseEntity
builder but I find it helps with keeping the code readable. It also helps remembering, which data a response for a specific HTTP status code should include. For example, a response with the status code 201 should contain a link to the newly created resource in the Location
header (see Status Code Definitions). This is why Spring offers the convenient build method ResponseEntity.created(URI)
.
Note 2: Don't use printStackTrace()
, use a logger instead.
@ExceptionHandler
Remove the try-catch block from your method and let it throw the exception. Then create another method in a class annotated with @ControllerAdvice
like this:
@ControllerAdvice
public class ExceptionHandlerAdvice {
@ExceptionHandler(ChekingCredentialsFailedException.class)
public ResponseEntity handleException(ChekingCredentialsFailedException e) {
// log exception
return ResponseEntity
.status(HttpStatus.FORBIDDEN)
.body("Error Message");
}
}
Note that methods which are annotated with @ExceptionHandler
are allowed to have very flexible signatures. See the Javadoc for details.
A Kotlin extension + some padding around the drawable
fun TextView.addDrawable(drawable: Int) {
val imgDrawable = ContextCompat.getDrawable(context, drawable)
compoundDrawablePadding = 32
setCompoundDrawablesWithIntrinsicBounds(imgDrawable, null, null, null)
}
You can use the File.deleteOnExit()
method
https://developer.android.com/reference/java/io/File.html#deleteOnExit()
It is referenced here https://developer.android.com/reference/java/io/File.html#createTempFile(java.lang.String, java.lang.String, java.io.File)
Change it to this:
var email = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i;
This is a regular expression literal that is passed the i
flag which means to be case insensitive.
Keep in mind that email address validation is hard (there is a 4 or 5 page regular expression at the end of Mastering Regular Expressions demonstrating this) and your expression certainly will not capture all valid e-mail addresses.
To add to @user3303020 answer and output the search results into a file, you can run
Get-ChildItem V:\MyFolder -name -recurse *.CopyForbuild.bat > path_to_results_filename.txt
It may be easier to search for the correct file that way.
Whether you use CELERY_IMPORTS
or autodiscover_tasks
, the important point is the tasks are able to be found and the name of the tasks registered in Celery should match the names the workers try to fetch.
When you launch the Celery, say celery worker -A project --loglevel=DEBUG
, you should see the name of the tasks. For example, if I have a debug_task
task in my celery.py
.
[tasks]
. project.celery.debug_task
. celery.backend_cleanup
. celery.chain
. celery.chord
. celery.chord_unlock
. celery.chunks
. celery.group
. celery.map
. celery.starmap
If you can't see your tasks in the list, please check your celery configuration imports the tasks correctly, either in --setting
, --config
, celeryconfig
or config_from_object
.
If you are using celery beat, make sure the task name, task
, you use in CELERYBEAT_SCHEDULE
matches the name in the celery task list.
If you don't have any other indexes or sorted information for your objects, then you will have to iterate until such an object is found:
next(obj for obj in objs if obj.val == 5)
This is however faster than a complete list comprehension. Compare these two:
[i for i in xrange(100000) if i == 1000][0]
next(i for i in xrange(100000) if i == 1000)
The first one needs 5.75ms, the second one 58.3µs (100 times faster because the loop 100 times shorter).
using sizeof()
char h[] = "hello";
printf("%d\n",sizeof(h)-1); //Output = 5
using string.h
#include <string.h>
char h[] = "hello";
printf("%d\n",strlen(h)); //Output = 5
using function (
strlen
implementation)
int strsize(const char* str);
int main(){
char h[] = "hello";
printf("%d\n",strsize(h)); //Output = 5
return 0;
}
int strsize(const char* str){
return (*str) ? strsize(++str) + 1 : 0;
}
According to the documentation the related method to android:backgroundTint
is setBackgroundTintList(ColorStateList list)
Update
Follow this link to know how create a Color State List Resource.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:color="#your_color_here" />
</selector>
then load it using
setBackgroundTintList(contextInstance.getResources().getColorStateList(R.color.your_xml_name));
where contextInstance
is an instance of a Context
using AppCompart
btnTag.setSupportButtonTintList(ContextCompat.getColorStateList(Activity.this, R.color.colorPrimary));
You're right in thinking that, in order to share an image in this way without going down the Twitter Cards route, you need to to have tweeted the image already. As you say, it's also important that you grab the image link that's of the form pic.twitter.com/NuDSx1ZKwy
This step-by-step guide is worth checking out for anyone looking to implement a 'tweet this' link or button: http://onlinejournalismblog.com/2015/02/11/how-to-make-a-tweetable-image-in-your-blog-post/.
this:
element.setAttribute("onclick", alert("blabla"));
should be:
element.onclick = function () {
alert("blabla");
}
Because you call alert instead push alert as string in attribute
Looks like HighChart 2.2.0 has resolved this issue. I tried it here with the same code you have, and the first series is hidden now. Could you try it with HighChart 2.2.0?
Run this code on the command line and enter the value of N:
N = gets; 1.step(N.to_i, 1) { |i| print "hello world\n" }
I would take a DatePicker. It's the only component that allows expert users to enter it manually and guides novices to enter a date very easy.
The calendar should not pop up if you enter via pressing tab, but clicking on a button. So no expert user is annoyed of it.
In controller:
function innerItem($scope, $element){
var jQueryInnerItem = $($element);
}
MongoDB needs data directory to store data.
Default path is /data/db
When you start MongoDB engine, it searches this directory which is missing in your case. Solution is create this directory and assign rwx
permission to user.
If you want to change the path of your data directory then you should specify it while starting mongod server like,
mongod --dbpath /data/<path> --port <port no>
This should help you start your mongod server with custom path and port.
In my case the files were appeared as modified after changing the files permissions.
To make git ignore permission changes, do the following :
# For the current repository
git config core.filemode false
# Globally
git config --global core.filemode false
alter table MYTABLE modify (MYCOLUMN null);
In Oracle, not null constraints are created automatically when not null is specified for a column. Likewise, they are dropped automatically when the column is changed to allow nulls.
Clarifying the revised question: This solution only applies to constraints created for "not null" columns. If you specify "Primary Key" or a check constraint in the column definition without naming it, you'll end up with a system-generated name for the constraint (and the index, for the primary key). In those cases, you'd need to know the name to drop it. The best advice there is to avoid the scenario by making sure you specify a name for all constraints other than "not null". If you find yourself in the situation where you need to drop one of these constraints generically, you'll probably need to resort to PL/SQL and the data-definition tables.
Based on W3schools default transition value is: all 0s ease 0s
, which should be the cross-browser compatible way of disabling the transition.
Here is a link: https://www.w3schools.com/cssref/css3_pr_transition.asp
The problem here is very simple. If you want to display value in JSP, you have to use <%= %> tag instead of <% %>, here is the solved code:
<tr>
<td><%=rs.getInt("ID") %></td>
<td><%=rs.getString("NAME") %></td>
<td><%=rs.getString("SKILL") %></td>
</tr>
P stands for polynomial time. NP stands for non-deterministic polynomial time.
Definitions:
Polynomial time means that the complexity of the algorithm is O(n^k), where n is the size of your data (e. g. number of elements in a list to be sorted), and k is a constant.
Complexity is time measured in the number of operations it would take, as a function of the number of data items.
Operation is whatever makes sense as a basic operation for a particular task. For sorting, the basic operation is a comparison. For matrix multiplication, the basic operation is multiplication of two numbers.
Now the question is, what does deterministic vs. non-deterministic mean? There is an abstract computational model, an imaginary computer called a Turing machine (TM). This machine has a finite number of states, and an infinite tape, which has discrete cells into which a finite set of symbols can be written and read. At any given time, the TM is in one of its states, and it is looking at a particular cell on the tape. Depending on what it reads from that cell, it can write a new symbol into that cell, move the tape one cell forward or backward, and go into a different state. This is called a state transition. Amazingly enough, by carefully constructing states and transitions, you can design a TM, which is equivalent to any computer program that can be written. This is why it is used as a theoretical model for proving things about what computers can and cannot do.
There are two kinds of TM's that concern us here: deterministic and non-deterministic. A deterministic TM only has one transition from each state for each symbol that it is reading off the tape. A non-deterministic TM may have several such transition, i. e. it is able to check several possibilities simultaneously. This is sort of like spawning multiple threads. The difference is that a non-deterministic TM can spawn as many such "threads" as it wants, while on a real computer only a specific number of threads can be executed at a time (equal to the number of CPUs). In reality, computers are basically deterministic TMs with finite tapes. On the other hand, a non-deterministic TM cannot be physically realized, except maybe with a quantum computer.
It has been proven that any problem that can be solved by a non-deterministic TM can be solved by a deterministic TM. However, it is not clear how much time it will take. The statement P=NP means that if a problem takes polynomial time on a non-deterministic TM, then one can build a deterministic TM which would solve the same problem also in polynomial time. So far nobody has been able to show that it can be done, but nobody has been able to prove that it cannot be done, either.
NP-complete problem means an NP problem X, such that any NP problem Y can be reduced to X by a polynomial reduction. That implies that if anyone ever comes up with a polynomial-time solution to an NP-complete problem, that will also give a polynomial-time solution to any NP problem. Thus that would prove that P=NP. Conversely, if anyone were to prove that P!=NP, then we would be certain that there is no way to solve an NP problem in polynomial time on a conventional computer.
An example of an NP-complete problem is the problem of finding a truth assignment that would make a boolean expression containing n variables true.
For the moment in practice any problem that takes polynomial time on the non-deterministic TM can only be done in exponential time on a deterministic TM or on a conventional computer.
For example, the only way to solve the truth assignment problem is to try 2^n possibilities.
There are two ways to use this variable:
passing it as a command line argument just like Job mentioned:
cmake -DCMAKE_INSTALL_PREFIX=< install_path > ..
assigning value to it in CMakeLists.txt
:
SET(CMAKE_INSTALL_PREFIX < install_path >)
But do remember to place it BEFORE PROJECT(< project_name>)
command, otherwise it will not work!
You can't, because the only way you could do it without parentheses is having it be a keyword, like in Python 2. You can't manually define a keyword, so no.
I am now able to successfully build. Not sure exactly which step "fixed" things, but this was the sequence:
While I am not sure exactly which parts were necessary, I think the previous certificates were the problem. I hate Xcode :(
Thanks for help.
The .egg
file is a distribution format for Python packages. It’s just an alternative to a source code distribution or Windows exe
. But note that for pure Python
, the .egg
file is completely cross-platform.
The .egg
file itself is essentially a .zip
file. If you change the extension to “zip
”, you can see that it will have folders inside the archive.
Also, if you have an .egg
file, you can install it as a package using easy_install
Example:
To create an .egg
file for a directory say mymath
which itself may have several python scripts, do the following step:
# setup.py
from setuptools import setup, find_packages
setup(
name = "mymath",
version = "0.1",
packages = find_packages()
)
Then, from the terminal do:
$ python setup.py bdist_egg
This will generate lot of outputs, but when it’s completed you’ll see that you have three new folders: build, dist, and mymath.egg-info. The only folder that we care about is the dist folder where you'll find your .egg
file, mymath-0.1-py3.5.egg
with your default python (installation) version number(mine here: 3.5)
Source: Python library blog
const o = {
name: "Max",
location: "London"
};
for (const [key, value] of Object.entries(o)) {
console.log(`${key}: ${value}`);
}
Working Example :_
<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage2.Master" AutoEventWireup="true" CodeBehind="History.aspx.cs" Inherits="NAMESPACE_Web.History1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajax" %>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
function helloFromCodeBehind() {
alert("hello!")
}
</script>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
<div id="container" ></div>
</asp:Content>
Code Behind
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace NAMESPACE_Web
{
public partial class History1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
ScriptManager.RegisterStartupScript(this, GetType(), "displayalertmessage", "helloFromCodeBehind()", true);
}
}
}
Possible pitfalls:-
CodeBehind="History.aspx.cs"
is pointing to wrong pageI figured it out. I was using a bad example I found in the past of how to map query string to the method parameters.
In case anyone else needs it, in order to have optional parameters in a query string such as:
you would use:
[Route("products/filter/{apc?}/{xpc?}/{sku?}")]
public IHttpActionResult Get(string apc = null, string xpc = null, int? sku = null)
{ ... }
It seems odd to have to define default values for the method parameters when these types already have a default.
For bootstrap its works
<span class="form-control">$ <input type="text"/></span>
Don't use class="form-control" in input field.
The data.table
package has its IDate
class and functionalities similar to lubridate
or the zoo
package. You could do:
dt = data.table(
Name = c('Joe', 'Amy', 'John'),
JoiningDate = c('12/31/09', '10/28/09', '05/06/10'),
AmtPaid = c(1000, 100, 200)
)
require(data.table)
dt[ , JoiningDate := as.IDate(JoiningDate, '%m/%d/%y') ]
the simplest solution
I wanted a very quick way to convert my set to List and return it, so in one line I did
return new ArrayList<Long>(mySetVariable);
How about IndexOf
?
Searches for the specified object and returns the index of the first occurrence within the list
For example
> var boys = new List<string>{"Harry", "Ron", "Neville"};
> boys.IndexOf("Neville")
2
> boys[2] == "Neville"
True
Note that it returns -1 if the value doesn't occur in the list
> boys.IndexOf("Hermione")
-1
Yes, you will need the mysql c++ connector library. Read on below, where I explain how to get the example given by mysql developers to work.
Note(and solution): IDE: I tried using Visual Studio 2010, but just a few sconds ago got this all to work, it seems like I missed it in the manual, but it suggests to use Visual Studio 2008. I downloaded and installed VS2008 Express for c++, followed the steps in chapter 5 of manual and errors are gone! It works. I'm happy, problem solved. Except for the one on how to get it to work on newer versions of visual studio. You should try the mysql for visual studio addon which maybe will get vs2010 or higher to connect successfully. It can be downloaded from mysql website
Whilst trying to get the example mentioned above to work, I find myself here from difficulties due to changes to the mysql dev website. I apologise for writing this as an answer, since I can't comment yet, and will edit this as I discover what to do and find the solution, so that future developers can be helped.(Since this has gotten so big it wouldn't have fitted as a comment anyways, haha)
@hd1 link to "an example" no longer works. Following the link, one will end up at the page which gives you link to the main manual. The main manual is a good reference, but seems to be quite old and outdated, and difficult for new developers, since we have no experience especially if we missing a certain file, and then what to add.
@hd1's link has moved, and can be found with a quick search by removing the url components, keeping just the article name, here it is anyways: http://dev.mysql.com/doc/connector-cpp/en/connector-cpp-examples-complete-example-1.html
Getting 7.5 MySQL Connector/C++ Complete Example 1 to work
Downloads:
-Get the mysql c++ connector, even though it is bigger choose the installer package, not the zip.
-Get the boost libraries from boost.org, since boost is used in connection.h and mysql_connection.h from the mysql c++ connector
Now proceed:
-Install the connector to your c drive, then go to your mysql server install folder/lib and copy all libmysql files, and paste in your connector install folder/lib/opt
-Extract the boost library to your c drive
Next:
It is alright to copy the code as it is from the example(linked above, and ofcourse into a new c++ project). You will notice errors:
-First: change
cout << "(" << __FUNCTION__ << ") on line " »
<< __LINE__ << endl;
to
cout << "(" << __FUNCTION__ << ") on line " << __LINE__ << endl;
Not sure what that tiny double arrow is for, but I don't think it is part of c++
-Second: Fix other errors of them by reading Chapter 5 of the sql manual, note my paragraph regarding chapter 5 below
[Note 1]: Chapter 5 Building MySQL Connector/C++ Windows Applications with Microsoft Visual Studio If you follow this chapter, using latest c++ connecter, you will likely see that what is in your connector folder and what is shown in the images are quite different. Whether you look in the mysql server installation include and lib folders or in the mysql c++ connector folders' include and lib folders, it will not match perfectly unless they update the manual, or you had a magic download, but for me they don't match with a connector download initiated March 2014.
Just follow that chapter 5,
-But for c/c++, General, Additional Include Directories include the "include" folder from the connector you installed, not server install folder
-While doing the above, also include your boost folder see note 2 below
-And for the Linker, General.. etc use the opt folder from connector/lib/opt
*[Note 2]*A second include needs to happen, you need to include from the boost library variant.hpp, this is done the same as above, add the main folder you extracted from the boost zip download, not boost or lib or the subfolder "variant" found in boostmainfolder/boost.. Just the main folder as the second include
Next:
What is next I think is the Static Build, well it is what I did anyways. Follow it.
Then build/compile. LNK errors show up(Edit: Gone after changing ide to visual studio 2008). I think it is because I should build connector myself(if you do this in visual studio 2010 then link errors should disappear), but been working on trying to get this to work since Thursday, will see if I have the motivation to see this through after a good night sleep(and did and now finished :) ).
If you're using joda time and want the current time in milliseconds without your local offset you can use this:
long instant = DateTimeZone.UTC.getMillisKeepLocal(DateTimeZone.getDefault(), System.currentTimeMillis());
Sometimes, I wonder why people compare AWS to Heroku. AWS is an IAAS( infrastructure as a service) it clearly speaks how robust and calculative the system is. Heroku, on the other hand, is just a SAAS, it is basically just one fraction of AWS services. So why struggle with setting up AWS when you can ship your first product to the prime using Heroku.
Heroku is free, simple and easy to deploy almost all types of stacks to the web. Heroku is specifically built to bypass all the hassles of shipping your application to a live server in less than no time.
Nevertheless, you may want to deploy your application using any of the tutorials from both parties and compare
AWS DOCS and Heroku Docs
If you're down here... I'm sorry the other options didn't workout. Try this:
conda install -c menpo opencv3
from Step 1 of Scivision's Tutorial. If that doesn't work, then go on to Step 2:
(Windows only) OpenCV 3.2 pip install
Download OpenCV .whl file here. The packages that mention
contrib
in their name include OpenCV-extra packages. For example, assuming you have Python 3.6, you might downloadopencv_python-3.2.0+contrib-cp36-none-win_amd64.whl
to get the OpenCV-extra packages.Then, from Command Prompt:
pip install opencv_python-3...yourVersion...win_amd64.whl
Note that the ...win_amd64.whl
wheels packages from step 2 in that tutorial are meant for AMD chips.
Check the Variables section in the Go template docs. A range may declare two variables, separated by a comma. The following should work:
{{ range $key, $value := . }}
<li><strong>{{ $key }}</strong>: {{ $value }}</li>
{{ end }}
String start_dt = "2011-01-01"; // Input String
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); // Existing Pattern
Date getStartDt = formatter.parse(start_dt); //Returns Date Format according to existing pattern
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MM-dd-yyyy");// New Pattern
String formattedDate = simpleDateFormat.format(getStartDt); // Format given String to new pattern
System.out.println(formattedDate); //outputs: 01-01-2011
As Wagner Francisco said, (in JADE)
input(type="text", ng-model="someModel", placeholder="{{someScopeVariable}}")`
And in your controller :
$scope.someScopeVariable = 'somevalue'
jQuery:
$("#tbodyid").empty();
HTML:
<table>
<tbody id="tbodyid">
<tr>
<td>something</td>
</tr>
</tbody>
</table>
Works for me
http://jsfiddle.net/mbsh3/
I would not recommend you to start session just to get some unique id. Instead, use such things as uniqid()
because it's intended to return unique id.
However, if you already have session, then, of course, use session_id()
to get your session id - but do not rely on that, because "unique id" isn't same as "session id" in common sense: for example, multiple tabs in most browsers will use same process, thus, use same session identifier in result - and, therefore, different connections will have same id. It's your decision about desired behavior, I've mentioned this just to show the difference between session id and unique id.
You can do it on a per file basis. Use the path attribute to include the filename
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<location path="YourFileNameHere.xml">
<system.webServer>
<staticContent>
<clientCache cacheControlMode="DisableCache" />
</staticContent>
</system.webServer>
</location>
</configuration>
If you like fun, then you can just go to the listing page of you branches (for example merged) and just run in the javascript console:
document.querySelectorAll('tr td div a:first-child').forEach(function(item) { fetch('https://bitbucket.org/snippets/new?owner=<yourprofilenick>', {'credentials': 'same-origin'}).then((response) => {return response.text()}).then(function(string) { return /'csrfmiddlewaretoken' value='(.*)'/g.exec(string)[1] }).then(function(csrf) { if (!~item.innerText.indexOf('/')) return;
fetch(`https://bitbucket.org/!api/2.0/repositories/<your_organization_path>/refs/branches/${item.innerText}`, {headers: {"x-csrftoken": csrf}, credentials: "same-origin", method: 'DELETE'}).then(() => console.log(`${item.innerText} DELETED!`)) }) })
<yourprofilenick>
with your BitBucket nick<your_organization_path>
with your organization pathFirst we need a page with with a CSRF token in the page source, so I choose:
https://bitbucket.org/snippets/new?owner=<yourprofilenick>
Then for each branch (in a branch listing) it gets CSRF token and deletes that branch.
Remeber to prevent sensitive branches before deleting in repo settings.
It WON'T delete the main branch.
You have to be logged in.
It deletes only branches visible on that page (so to delete the rest of branches you have to go to the next page).
As of mid 2017 To quickly get to the settings files press ctrl + shift + p and enter settings
, there you will find the user settings and the workspace settings, be aware that the workspace settings will override the user settings, so it's better to use the latter directly to make it a global change (workspace settings will create a folder in your project root), from there you will have the option to add the option "editor.fontSize": 14
to your settings as a quick suggestion, but you can do it yourself and change the value to your preferred font size.
To sum it up:
ctrl + shift + p
select "user settings"
add "editor.fontSize": 14
public boolean isLeapYear(int year)
{
if (year % 4 != 0){
isLeapYear = false;
System.out.println("false");
}
else if ((year % 4 == 0) && (year % 100 == 0)){
isLeapYear = false;
System.out.println("false");
}
else if ((year % 4 == 0) && (year % 100 == 0) && (year % 400 == 0)){
isLeapYear = true;
System.out.println("true");
}
else{
isLeapYear = false;
System.out.println("false");
}
return isLeapYear;
}
For everyone who is stuck with .NET 2.0, like me, try the following way (applicable to the example in the OP):
ConfigItemList.ConvertAll<string>(delegate (ConfigItemType ci)
{
return ci.Name;
}).ToArray();
where ConfigItemList is your list variable.
For a regular dict, you can use:
mydict[k_new] = mydict.pop(k_old)
This will move the item to the end of the dict, unless k_new
was already existing in which case it will overwrite the value in-place.
For a Python 3.7+ dict where you additionally want to preserve the ordering, the simplest is to rebuild an entirely new instance. For example, renaming key 2
to 'two'
:
>>> d = {0:0, 1:1, 2:2, 3:3}
>>> {"two" if k == 2 else k:v for k,v in d.items()}
{0: 0, 1: 1, 'two': 2, 3: 3}
The same is true for an OrderedDict
, where you can't use dict comprehension syntax, but you can use a generator expression:
OrderedDict((k_new if k == k_old else k, v) for k, v in od.items())
Modifying the key itself, as the question asks for, is impractical because keys are hashable which usually implies they're immutable and can't be modified.
As others have mentioned, the "is" keyword. However, if you're going to later cast it to that type, eg.
TForm t = (TForm)c;
Then you should use the "as" keyword.
e.g. TForm t = c as TForm.
Then you can check
if(t != null)
{
// put TForm specific stuff here
}
Don't combine as with is because it's a duplicate check.
Easiest way is probably
pip3 -V
This will show you where your pip is installed and therefore where your packages are located.
I use svnX (http://code.google.com/p/svnx/downloads/list), it is free and usable, but not as user friendly as tortoise. It shows you the review before commit with diff for every file... but sometimes I still had to go to command line to fix some things
The code below will change the div to blue.
<script>
$(document).ready(function(){
$("#co").click({
$("body").css("background-color","blue");
});
});
</script>
<body>
<div id="co">hello</div>
</body>
Because I don't like to have duplicate files (log4j.properties in test and main), and I have quite many test classes, they each runwith SpringJUnit4ClassRunner class, so I have to customize it. This is what I use:
import java.io.FileNotFoundException;
import org.junit.runners.model.InitializationError;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.util.Log4jConfigurer;
public class MySpringJUnit4ClassRunner extends SpringJUnit4ClassRunner {
static {
String log4jLocation = "classpath:log4j-oops.properties";
try {
Log4jConfigurer.initLogging(log4jLocation);
} catch (FileNotFoundException ex) {
System.err.println("Cannot Initialize log4j at location: " + log4jLocation);
}
}
public MySpringJUnit4ClassRunner(Class<?> clazz) throws InitializationError {
super(clazz);
}
}
When you use it, replace SpringJUnit4ClassRunner with MySpringJUnit4ClassRunner
@RunWith(MySpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:conf/applicationContext.xml")
public class TestOrderController {
private Logger LOG = LoggerFactory.getLogger(this.getClass());
private MockMvc mockMvc;
...
}
Good question.
When in a CSS file, URLs will be relative to the CSS file.
When writing properties using JavaScript, URLs should always be relative to the page (the main resource requested).
There is no tilde
functionality built-in in JS that I know of. The usual way would be to define a JavaScript variable specifying the base path:
<script type="text/javascript">
directory_root = "http://www.example.com/resources";
</script>
and to reference that root whenever you assign URLs dynamically.
First of all, you can't pass to alert
second argument, use concatenation instead
alert("Input is " + inputValue);
However in order to get values from input better to use states like this
var MyComponent = React.createClass({_x000D_
getInitialState: function () {_x000D_
return { input: '' };_x000D_
},_x000D_
_x000D_
handleChange: function(e) {_x000D_
this.setState({ input: e.target.value });_x000D_
},_x000D_
_x000D_
handleClick: function() {_x000D_
console.log(this.state.input);_x000D_
},_x000D_
_x000D_
render: function() {_x000D_
return (_x000D_
<div>_x000D_
<input type="text" onChange={ this.handleChange } />_x000D_
<input_x000D_
type="button"_x000D_
value="Alert the text input"_x000D_
onClick={this.handleClick}_x000D_
/>_x000D_
</div>_x000D_
);_x000D_
}_x000D_
});_x000D_
_x000D_
ReactDOM.render(_x000D_
<MyComponent />,_x000D_
document.getElementById('container')_x000D_
);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>_x000D_
<div id="container"></div>
_x000D_
Try request.setAttribute("param",value);
. It worked fine for me.
Please find this code sample:
private void sanitizePrice(ServletRequest request){
if(request.getParameterValues ("price") != null){
String price[] = request.getParameterValues ("price");
for(int i=0;i<price.length;i++){
price[i] = price[i].replaceAll("[^\\dA-Za-z0-9- ]", "").trim();
System.out.println(price[i]);
}
request.setAttribute("price", price);
//request.getParameter("numOfBooks").re
}
}
When Array List contains object of Primitive DataType.
Use this function:
arrayList.contains(value);
if list contains that value then it will return true else false.
When Array List contains object of UserDefined DataType.
Follow this below Link
How to compare Objects attributes in an ArrayList?
I hope this solution will help you. Thanks
![myimage-alt-tag](url-to-image)
![stack Overflow](http://lmsotfy.com/so.png)
I was wraped it with <> </> as a parent when I changed it to normal , div , its worked fine
Here is an example of passing mode as optional parameter
void myfunc(int blah, int mode = 0)
{
if (mode == 0)
do_something();
else
do_something_else();
}
you can call myfunc in both ways and both are valid
myfunc(10); // Mode will be set to default 0
myfunc(10, 1); // Mode will be set to 1
I got this issue when I used an ajax call to retrieve data from the database. When the controller returned the array it converted it to a boolean. The problem was that I had "invalid characters" like ú (u with accent).
Using type
:
// Numbers
typeof 37 === 'number';
typeof 3.14 === 'number';
typeof Math.LN2 === 'number';
typeof Infinity === 'number';
typeof NaN === 'number'; // Despite being "Not-A-Number"
typeof Number(1) === 'number'; // but never use this form!
// Strings
typeof "" === 'string';
typeof "bla" === 'string';
typeof (typeof 1) === 'string'; // typeof always return a string
typeof String("abc") === 'string'; // but never use this form!
// Booleans
typeof true === 'boolean';
typeof false === 'boolean';
typeof Boolean(true) === 'boolean'; // but never use this form!
// Undefined
typeof undefined === 'undefined';
typeof blabla === 'undefined'; // an undefined variable
// Objects
typeof {a:1} === 'object';
typeof [1, 2, 4] === 'object'; // use Array.isArray or Object.prototype.toString.call to differentiate regular objects from arrays
typeof new Date() === 'object';
typeof new Boolean(true) === 'object'; // this is confusing. Don't use!
typeof new Number(1) === 'object'; // this is confusing. Don't use!
typeof new String("abc") === 'object'; // this is confusing. Don't use!
// Functions
typeof function(){} === 'function';
typeof Math.sin === 'function';
I got into a situation where the data was mixed between NULL and 0000-00-00 for a date field. But I did not know how to update the '0000-00-00' to NULL, because
update my_table set my_date_field=NULL where my_date_field='0000-00-00'
is not allowed any more. My workaround was quite simple:
update my_table set my_date_field=NULL where my_date_field<'1000-01-01'
because all the incorrect my_date_field
values (whether correct dates or not) were from before this date.
You should actually wrap this in a try/catch block for IE:
// Ensure jquery is loaded -- syntaxed for IE compatibility
try
{
var jqueryIsLoaded=jQuery;
jQueryIsLoaded=true;
}
catch(err)
{
var jQueryIsLoaded=false;
}
if(jQueryIsLoaded)
{
$(function(){
/** site level jquery code here **/
});
}
else
{
// Jquery not loaded
}
You can slice along the columns of a DataFrame
by referring to the names of each column in a list, like so:
data = pandas.DataFrame(np.random.rand(10,5), columns = list('abcde'))
data_ab = data[list('ab')]
data_cde = data[list('cde')]
The default shell on most Linux distributions is Bash. In Bash, variables must use a dollar sign prefix for parameter expansion. For example:
x=20
y=5
expr $x / $y
Of course, Bash also has arithmetic operators and a special arithmetic expansion syntax, so there's no need to invoke the expr binary as a separate process. You can let the shell do all the work like this:
x=20; y=5
echo $((x / y))
It is really easy to do a bulk insert in Laravel with or without the query builder. You can use the following official approach.
Entity::upsert([
['name' => 'Pierre Yem Mback', 'city' => 'Eseka', 'salary' => 10000000],
['name' => 'Dial rock 360', 'city' => 'Yaounde', 'salary' => 20000000],
['name' => 'Ndibou La Menace', 'city' => 'Dakar', 'salary' => 40000000]
], ['name', 'city'], ['salary']);
I had the same issue the solution for me was to change my java version in the pom.xml file.
In Swift 4:
let dict = ["Item1":2.4, "Item2": 5.4, "Item3" : 6.5]
let array = Array(dict.values)
Use DBNull.Value
Better still, make your stored procedure parameters have defaults of NULL. Or use a Nullable<DateTime>
parameter if the parameter will sometimes be a valid DateTime object
A lot of these answers are simplistic, and if someone is beginning WPF, they may not know all of the "ins-and-outs", as it is more complicated than just telling someone "Use .ShowDialog()
!". But that is the method (not .Show()
) that you want to use in order to block use of the underlying window and to keep the code from continuing until the modal window is closed.
First, you need 2 WPF windows. (One will be calling the other.)
From the first window, let's say that was called MainWindow.xaml, in its code-behind will be:
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
}
Then add your button to your XAML:
<Button Name="btnOpenModal" Click="btnOpenModal_Click" Content="Open Modal" />
And right-click the Click
routine, select "Go to definition". It will create it for you in MainWindow.xaml.cs:
private void btnOpenModal_Click(object sender, RoutedEventArgs e)
{
}
Within that function, you have to specify the other page using its page class. Say you named that other page "ModalWindow", so that becomes its page class and is how you would instantiate (call) it:
private void btnOpenModal_Click(object sender, RoutedEventArgs e)
{
ModalWindow modalWindow = new ModalWindow();
modalWindow.ShowDialog();
}
Say you have a value you need set on your modal dialog. Create a textbox and a button in the ModalWindow
XAML:
<StackPanel Orientation="Horizontal">
<TextBox Name="txtSomeBox" />
<Button Name="btnSaveData" Click="btnSaveData_Click" Content="Save" />
</StackPanel>
Then create an event handler (another Click
event) again and use it to save the textbox value to a public static variable on ModalWindow
and call this.Close()
.
public partial class ModalWindow : Window
{
public static string myValue = String.Empty;
public ModalWindow()
{
InitializeComponent();
}
private void btnSaveData_Click(object sender, RoutedEventArgs e)
{
myValue = txtSomeBox.Text;
this.Close();
}
}
Then, after your .ShowDialog()
statement, you can grab that value and use it:
private void btnOpenModal_Click(object sender, RoutedEventArgs e)
{
ModalWindow modalWindow = new ModalWindow();
modalWindow.ShowDialog();
string valueFromModalTextBox = ModalWindow.myValue;
}
I am pretty late to this but was having similar issues and after a day of going through a lot of the answers here and getting background I have found the easiest/lightweight solution to pass back one or more parameters to a Web API 2 Action is as follows:
This assumes that you know how to setup a Web API controller/action with correct routing, if not refer to: https://docs.microsoft.com/en-us/aspnet/web-api/overview/getting-started-with-aspnet-web-api/tutorial-your-first-web-api.
First the Controller Action, this solution also requires the Newtonsoft.Json library.
[HttpPost]
public string PostProcessData([FromBody]string parameters) {
if (!String.IsNullOrEmpty(parameters)) {
JObject json = JObject.Parse(parameters);
// Code logic below
// Can access params via json["paramName"].ToString();
}
return "";
}
Client Side using jQuery
var dataToSend = JSON.stringify({ param1: "value1", param2: "value2"...});
$.post('/Web_API_URI', { '': dataToSend }).done(function (data) {
console.debug(data); // returned data from Web API
});
The key issue I found was making sure you only send a single overall parameter back to the Web API and make sure it has no name just the value { '': dataToSend }
otherwise your value will be null on the server side.
With this you can send one or many parameters to the Web API in a JSON structure and you don't need to declare any extra objects server side to handle complex data. The JObject also allows you to dynamically iterate over all parameters passed in allowing easier scalability should your parameters change over time. Hopefully that helps someone out that was struggling like me.
You can do this using the java.time classes built into Java 8 and later.
ZonedDateTime temporal = ...
long epochSecond = temporal.getLong(INSTANT_SECONDS);
int nanoOfSecond = temporal.get(NANO_OF_SECOND);
Date date = new Date(epochSecond * 1000 + nanoOfSecond / 1000000);
Try this:
$NameRegex = "chalmw-dm"
$NameR = "$($NameRegex)*"
Get-ADComputer -Filter {name -like $NameR -and Enabled -eq $True}
<?php
$content='<table width="100%" border="1">';
$content.='<tr><th>name</th><th>email</th><th>contact</th><th>address</th><th>city</th><th>country</th><th>postcode</th></tr>';
for ($index = 0; $index < 10; $index++) {
$content.='<tr><td>nadim</td><td>[email protected]</td><td>7737033665</td><td>247 dehligate</td><td>udaipur</td><td>india</td><td>313001</td></tr>';
}
$content.='</table>';
//$html = file_get_contents('pdf.php');
if(isset($_POST['pdf'])){
require_once('./dompdf/dompdf_config.inc.php');
$dompdf = new DOMPDF;
$dompdf->load_html($content);
$dompdf->render();
$dompdf->stream("hello.pdf");
}
?>
<html>
<body>
<form action="#" method="post">
<button name="pdf" type="submit">export</button>
<table width="100%" border="1">
<tr><th>name</th><th>email</th><th>contact</th><th>address</th><th>city</th><th>country</th><th>postcode</th></tr>
<?php for ($index = 0; $index < 10; $index++) { ?>
<tr><td>nadim</td><td>[email protected]</td><td>7737033665</td><td>247 dehligate</td><td>udaipur</td><td>india</td><td>313001</td></tr>
<?php } ?>
</table>
</form>
</body>
</html>
So I had a similar situation with the same error. I forgot I changed the compatibility mode on my dev machine and I had a console.log command in my javascript as well. I changed compatibility mode back in IE, and removed the console.log command. No more issue.
From Python you can do directly using below code
import subprocess
proc = subprocess.check_output('C:\Windows\System32\cmd.exe /k %windir%\System32\\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f' ,stderr=subprocess.STDOUT,shell=True)
print(str(proc))
in first parameter just executed User Account setting you may customize with yours.
This API has been available for a long time and enables to get access to market data (including live) if you are running a Bloomberg Terminal or have access to a Bloomberg Server, which is chargeable.
The only difference is that the API (not its code) has been open sourced, so it can now be used as a dependency in an open source project for example, without any copyrights issues, which was not the case before.
Easiest way:
To save:
getPreferences(MODE_PRIVATE).edit().putString("Name of variable",value).commit();
To retrieve:
your_variable = getPreferences(MODE_PRIVATE).getString("Name of variable",default value);
No need for a function:
$assetPath : "/assets/images";
...
body {
margin: 0 auto;
background: url(#{$assetPath}/site/background.jpg) repeat-x fixed 0 0;
width: 100%; }
See the interpolation docs for details.
<label>Mobile Number(*)</label>
<input id="txtMobile" ng-maxlength="10" maxlength="10" Validate-phone required name='strMobileNo' ng-model="formModel.strMobileNo" type="text" placeholder="Enter Mobile Number">
<span style="color:red" ng-show="regForm.strMobileNo.$dirty && regForm.strMobileNo.$invalid"><span ng-show="regForm.strMobileNo.$error.required">Phone is required.</span>
the following code will help for phone number validation and the respected directive is
app.directive('validatePhone', function() {
var PHONE_REGEXP = /^[789]\d{9}$/;
return {
link: function(scope, elm) {
elm.on("keyup",function(){
var isMatchRegex = PHONE_REGEXP.test(elm.val());
if( isMatchRegex&& elm.hasClass('warning') || elm.val() == ''){
elm.removeClass('warning');
}else if(isMatchRegex == false && !elm.hasClass('warning')){
elm.addClass('warning');
}
});
}
}
});
Currently, setTextSize(float size)
method will work well so we don't need to use another method for change text size
android.widget.TextView.java source code
/**
* Set the default text size to the given value, interpreted as "scaled
* pixel" units. This size is adjusted based on the current density and
* user font size preference.
*
* <p>Note: if this TextView has the auto-size feature enabled than this function is no-op.
*
* @param size The scaled pixel size.
*
* @attr ref android.R.styleable#TextView_textSize
*/
@android.view.RemotableViewMethod
public void setTextSize(float size) {
setTextSize(TypedValue.COMPLEX_UNIT_SP, size);
}
Example using
textView.setTextSize(20); // set your text size = 20sp
You need to set the height of html
to 100%
body {
background-image:url("../images/myImage.jpg");
background-repeat: no-repeat;
background-size: 100% 100%;
}
html {
height: 100%
}
//Pour inserer :
$pdf = addslashes(file_get_contents($_FILES['inputname']['tmp_name']));
$filetype = addslashes($_FILES['inputname']['type']);//pour le test
$namepdf = addslashes($_FILES['inputname']['name']);
if (substr($filetype, 0, 11) == 'application'){
$mysqli->query("insert into tablepdf(pdf_nom,pdf)value('$namepdf','$pdf')");
}
//Pour afficher :
$row = $mysqli->query("SELECT * FROM tablepdf where id=(select max(id) from tablepdf)");
foreach($row as $result){
$file=$result['pdf'];
}
header('Content-type: application/pdf');
echo file_get_contents('data:application/pdf;base64,'.base64_encode($file));
Elaborating on the answer provided by Brian R. Bondy: Here's an example that shows why you can't simply size the output buffer to the number of wide characters in the source string:
#include <windows.h>
#include <stdio.h>
#include <wchar.h>
#include <string.h>
/* string consisting of several Asian characters */
wchar_t wcsString[] = L"\u9580\u961c\u9640\u963f\u963b\u9644";
int main()
{
size_t wcsChars = wcslen( wcsString);
size_t sizeRequired = WideCharToMultiByte( 950, 0, wcsString, -1,
NULL, 0, NULL, NULL);
printf( "Wide chars in wcsString: %u\n", wcsChars);
printf( "Bytes required for CP950 encoding (excluding NUL terminator): %u\n",
sizeRequired-1);
sizeRequired = WideCharToMultiByte( CP_UTF8, 0, wcsString, -1,
NULL, 0, NULL, NULL);
printf( "Bytes required for UTF8 encoding (excluding NUL terminator): %u\n",
sizeRequired-1);
}
And the output:
Wide chars in wcsString: 6
Bytes required for CP950 encoding (excluding NUL terminator): 12
Bytes required for UTF8 encoding (excluding NUL terminator): 18
Recently i switched from Windows 10 home to Elementary OS, vscode didn't start from ctr+shift+p launch emulator instead of that, i just clicked bottom right corner no device---> Start emulator worked fine.
If you're using PaperClip, downloading from a URL is now handled automatically.
Assuming you've got something like:
class MyModel < ActiveRecord::Base
has_attached_file :image, ...
end
On your model, just specify the image as a URL, something like this (written in deliberate longhand):
@my_model = MyModel.new
image_url = params[:image_url]
@my_model.image = URI.parse(image_url)
You'll probably want to put this in a method in your model. This will also work just fine on Heroku's temporary filesystem.
Paperclip will take it from there.
source: paperclip documentation
If you just want the extension, you can use pathinfo
:
$ext = pathinfo($file_path, PATHINFO_EXTENSION);
The shortest code would be:
Select CAST((@EndDateTime-@StartDateTime) as time(0)) '[hh:mm:ss]'
just return true inside your if statement
var myArr = [1,2,3,4];
myArr.forEach(function(elem){
if (elem === 3) {
return true;
// Go to "next" iteration. Or "continue" to next iteration...
}
console.log(elem);
});
Also you can use
dirname(__DIR__, $level)
for access any folding level without traversing
In Python, "privacy" depends on "consenting adults'" levels of agreement - you can't force it (any more than you can in real life;-). A single leading underscore means you're not supposed to access it "from the outside" -- two leading underscores (w/o trailing underscores) carry the message even more forcefully... but, in the end, it still depends on social convention and consensus: Python's introspection is forceful enough that you can't handcuff every other programmer in the world to respect your wishes.
((Btw, though it's a closely held secret, much the same holds for C++: with most compilers, a simple #define private public
line before #include
ing your .h
file is all it takes for wily coders to make hash of your "privacy"...!-))
That's my favorite way prior to Java 8:
Date date = new GregorianCalendar(year, month - 1, day).getTime();
I'd say this is a cleaner approach than:
calendar.set(year, month - 1, day, 0, 0);
Swift 4
// An attributed string extension to achieve colors on text.
extension NSMutableAttributedString {
func setColor(color: UIColor, forText stringValue: String) {
let range: NSRange = self.mutableString.range(of: stringValue, options: .caseInsensitive)
self.addAttribute(NSAttributedStringKey.foregroundColor, value: color, range: range)
}
}
// Try it with label
let label = UILabel()
label.frame = CGRect(x: 70, y: 100, width: 260, height: 30)
let stringValue = "There are 5 results."
let attributedString: NSMutableAttributedString = NSMutableAttributedString(string: stringValue)
attributedString.setColor(color: UIColor.red, forText: "5")
label.font = UIFont.systemFont(ofSize: 26)
label.attributedText = attributedString
self.view.addSubview(label)
Result
Swift 3
func setColoredLabel() {
var string: NSMutableAttributedString = NSMutableAttributedString(string: "redgreenblue")
string.setColor(color: UIColor.redColor(), forText: "red")
string.setColor(color: UIColor.greenColor(), forText: "green")
string.setColor(color: UIColor.blueColor(, forText: "blue")
mylabel.attributedText = string
}
func setColor(color: UIColor, forText stringValue: String) {
var range: NSRange = self.mutableString.rangeOfString(stringValue, options: NSCaseInsensitiveSearch)
if range != nil {
self.addAttribute(NSForegroundColorAttributeName, value: color, range: range)
}
}
Result:
As soon as you have run npm init
and you start installing npm packages it'll create the node_moduals
folder after that first install
e.g
npm init
(Asks you to set up your package.json file)
npm install <package name here> --save-dev
installs package & creates the node modules directory
Here in my sample I find out the solution of this, because I had the same problem with updates and subquerys:
UPDATE
A
SET
A.ValueToChange = B.NewValue
FROM
(
Select * From C
) B
Where
A.Id = B.Id
String[] values = new String[arrayList.size()];
for (int i = 0; i < arrayList.size(); i++) {
values[i] = arrayList.get(i).type;
}
There is a step by step explanation (with pictures) available @ Restore DataBase
Click Start, select All Programs, click Microsoft SQL Server 2008 and select SQL Server Management Studio.
This will bring up the Connect to Server dialog box.
Ensure that the Server name YourServerName and that Authentication is set to Windows Authentication.
Click Connect.
On the right, right-click Databases and select Restore Database.
This will bring up the Restore Database window.
On the Restore Database screen, select the From Device radio button and click the "..." box.
This will bring up the Specify Backup screen.
On the Specify Backup screen, click Add.
This will bring up the Locate Backup File.
Select the DBBackup folder and chose your BackUp File(s).
On the Restore Database screen, under Select the backup sets to restore: place a check in the Restore box, next to your data and in the drop-down next to To database: select DbName.
You're done.
It varies on implementation and version, but usually it depends on the VM used (e.g. client or server, see -client
and -server
parameters) and on your system memory.
Often for client
the default value is 1/4th of your physical memory or 1GB (whichever is smaller).
Also Java configuration options (command line parameters) can be "outsourced" to environment variables including the -Xmx
, which can change the default (meaning specify a new default). Specifically the JAVA_TOOL_OPTIONS
environment variable is checked by all Java tools and used if exists (more details here and here).
You can run the following command to see default values:
java -XX:+PrintFlagsFinal -version
It gives you a loooong list, -Xmx
is in MaxHeapSize
, -Xms
is in InitialHeapSize
. Filter your output (e.g. |grep
on linux) or save it in a file so you can search in it.
Indeed this problem is to be fixed under Preferences -> Java -> Installed JREs. If the desired JRE is apparent in the list - just select it, and that's it.
Otherwise it has to be installed on your computer first so you could add it with "Add" -> Standard VM -> Directory, in the pop-up browser window choose its path - something like "program files\Java\Jre#" -> "ok". And now you can select it from the list.
After instaling the package you need to add the newtonsoft.json.dll into assemble path by runing the flowing command.
Before we can use our assembly, we have to add it to the global assembly cache (GAC). Open the Visual Studio 2008 Command Prompt again (for Vista/Windows7/etc. open it as Administrator). And execute the following command. gacutil /i d:\myMethodsForSSIS\myMethodsForSSIS\bin\Release\myMethodsForSSIS.dll
flow this link for more informATION http://microsoft-ssis.blogspot.com/2011/05/referencing-custom-assembly-inside.html
As mentioned in the above answers, unset GNUPLOT_DRIVER_DIR
should work if you have used export
to set the variable. If you have set it permanently in ~/.bashrc
or ~/.zshrc
then simply removing it from there will work.
Referring to this link Boolean datatype in Mysql, according to the application usage, if one wants only 0 or 1 to be stored, bit(1) is the better choice.
You could use the argument accumulator pattern.
Big discussion about this here:
http://blogs.msdn.com/csharpfaq/archive/2004/03/11/87817.aspx
Facebook has indeed added the SDK to the Maven Central repositories. To configure your project using the maven repo's instance, you'll need to do 2 things:
In your projects top-level build.gradle file, add the Maven Central repositories. Mine looks like this:
repositories {
jcenter() // This is the default repo
mavenCentral() // This is the Maven Central repo
}
In the app-level build.grade file, add the Facebook sdk dependency:
dependencies {
compile 'com.facebook.android:facebook-android-sdk:4.5.0' // Adjust the version accordingly
// All your other dependencies.
}
You can also adjust the specific Facebook SDK version as well. For a list of available versions in the maven repository click this link.
Firstly, be sure where your python directory. It is normally in C:\Python27
. If yours is different then change it from the below command.
If after you install it python still isn’t recognized, then in PowerShell enter this:
[Environment]::SetEnvironmentVariable("Path", "$env:Path;C:\Python27", "User")
Close PowerShell and then start it again to make sure Python now runs. If it doesn’t, restart may be required.
one more approach to use.
first, define the following somewhere on the page:
<div id="valueHolderId">${someValue}</div>
then in JS, just do something similar to
var someValue = $('#valueHolderId').html();
it works great for the cases when all scripts are inside .js files and obviously there is no jstl available
How about adding one extra decimal that is to be rounded and then discarded:
var d = 0.241534545765;
var result1 = d.ToString("0.###%");
var result2 = result1.Remove(result1.Length - 1);
You can actually do what Chris Chalmers does in his answer, but you must make sure that HAML doesn't parse the JavaScript. This approach is actually useful when you need to use a different type than text/javascript
, which is was I needed to do for MathJax
.
You can use the plain
filter to keep HAML from parsing the script and throwing an illegal nesting error:
%script{type: "text/x-mathjax-config"}
:plain
MathJax.Hub.Config({
tex2jax: {
inlineMath: [["$","$"],["\\(","\\)"]]
}
});
ExecuteScalar
returns the first column of the first row. Other columns or rows are ignored. It looks like your first column of the first row is null
, and that's why you get NullReferenceException
when you try to use the ExecuteScalar
method.
From MSDN;
Return Value
The first column of the first row in the result set, or a null reference if the result set is empty.
You might need to use COUNT
in your statement instead which returns the number of rows affected...
Using parameterized queries is always a good practise. It prevents SQL Injection attacks.
And Table
is a reserved keyword in T-SQL. You should use it with square brackets, like [Table]
also.
As a final suggestion, use the using
statement for dispose your SqlConnection
and SqlCommand
:
SqlCommand check_User_Name = new SqlCommand("SELECT COUNT(*) FROM [Table] WHERE ([user] = @user)" , conn);
check_User_Name.Parameters.AddWithValue("@user", txtBox_UserName.Text);
int UserExist = (int)check_User_Name.ExecuteScalar();
if(UserExist > 0)
{
//Username exist
}
else
{
//Username doesn't exist.
}
Variables are available only in the scope you defined them. If you define a variable inside a function, you won't be able to access it outside of it.
Define variable with var
outside the function (and of course before it) and then assign 10
to it inside function:
var value;
$(function() {
value = "10";
});
console.log(value); // 10
Note that you shouldn't omit the first line in this code (var value;
), because otherwise you are assigning value to undefined variable. This is bad coding practice and will not work in strict mode. Defining a variable (var variable;
) and assigning value to a variable (variable = value;
) are two different things. You can't assign value to variable that you haven't defined.
It might be irrelevant here, but $(function() {})
is a shortcut for $(document).ready(function() {})
, which executes a function as soon as document is loaded. If you want to execute something immediately, you don't need it, otherwise beware that if you run it before DOM has loaded, value will be undefined
until it has loaded, so console.log(value);
placed right after $(function() {})
will return undefined
. In other words, it would execute in following order:
var value;
console.log(value);
value = "10";
See also:
fast and best macro
#define get_bit_status() ( YOUR_VAR & ( 1 << BITX ) )
.
.
if (get_rx_pin_status() == ( 1 << BITX ))
{
do();
}
you can use the dot notation:
Dot lookups can be summarized like this: when the template system encounters a dot in a variable name, it tries the following lookups, in this order:
- Dictionary lookup (e.g., foo["bar"])
- Attribute lookup (e.g., foo.bar)
- Method call (e.g., foo.bar())
- List-index lookup (e.g., foo[2])
The system uses the first lookup type that works. It’s short-circuit logic.
It is related to generics in java. If I mentioned ArrayList<String>
that means I can add only String type object to that ArrayList.
The two major benefits of generics in Java are:
I came here with the same requirements but @lvc and @Preet's answers seems more inline with what column -t
produces in that columns have different widths:
>>> rows = [ ['a', 'b', 'c', 'd']
... , ['aaaaaaaaaa', 'b', 'c', 'd']
... , ['a', 'bbbbbbbbbb', 'c', 'd']
... ]
...
>>> widths = [max(map(len, col)) for col in zip(*rows)]
>>> for row in rows:
... print " ".join((val.ljust(width) for val, width in zip(row, widths)))
...
a b c d
aaaaaaaaaa b c d
a bbbbbbbbbb c d
Line ending format used in OS
CR
(Carriage Return \r
) and LF
(LineFeed \n
) pairLF
(LineFeed \n
)We can configure git to auto-correct line ending formats for each OS in two ways.
.gitattributes
filegit config --global core.autocrlf input
This will fix any CRLF
to LF
when you commit.
git config --global core.autocrlf true
This will make sure when you checkout in windows, all LF
will convert to CRLF
It is a good idea to keep a .gitattributes
file as we don't want to expect everyone in our team set their config. This file should keep in repo's root path and if exist one, git will respect it.
* text=auto
This will treat all files as text files and convert to OS's line ending on checkout and back to LF
on commit automatically. If wanted to tell explicitly, then use
* text eol=crlf
* text eol=lf
First one is for checkout and second one is for commit.
*.jpg binary
Treat all .jpg
images as binary files, regardless of path. So no conversion needed.
Or you can add path qualifiers:
my_path/**/*.jpg binary
To add my 2 cents. To mock specific http request methods either Get or Post. This worked for me.
mockHttpMessageHandler.Protected().Setup<Task<HttpResponseMessage>>("SendAsync", ItExpr.Is<HttpRequestMessage>(a => a.Method == HttpMethod.Get), ItExpr.IsAny<CancellationToken>())
.Returns(Task.FromResult(new HttpResponseMessage()
{
StatusCode = HttpStatusCode.OK,
Content = new StringContent(""),
})).Verifiable();
Easy way
from IPython.display import Image
Image(filename ="Covid.jpg" size )
I know it's been three years since this was asked, but I just figured out this problem for myself. I was using into outfile
and getting the error. When I commented out this part of the query, it worked.
The FILE
privilege is separate from all the others and must be granted to the user running the script.
GRANT FILE ON *.* TO 'asdfsdf'@'localhost';
You can run gdb with --args parameter,
gdb --args executablename arg1 arg2 arg3
If you want it to run automatically, place some commands in a file (e.g. 'run') and give it as argument: -x /tmp/cmds. Optionally you can run with -batch mode.
gdb -batch -x /tmp/cmds --args executablename arg1 arg2 arg3
Most (if not all) implementations proposed here have two flaws:
An updated proposition:
def find_first_in_list(objects, **kwargs):
return next((obj for obj in objects if
len(set(obj.keys()).intersection(kwargs.keys())) > 0 and
all([obj[k] == v for k, v in kwargs.items() if k in obj.keys()])),
None)
Maybe not the most pythonic, but at least a bit more failsafe.
Usage:
>>> obj1 = find_first_in_list(list_of_dict, name='Pam', age=7)
>>> obj2 = find_first_in_list(list_of_dict, name='Pam', age=27)
>>> obj3 = find_first_in_list(list_of_dict, name='Pam', address='nowhere')
>>>
>>> print(obj1, obj2, obj3)
{"name": "Pam", "age": 7}, None, {"name": "Pam", "age": 7}
The gist.
Change the <a>
tag like this:
<a href="newsletter_01.pdf" target="_blank">
You can find more about the target
attribute here.
From C++17 onward, the <filesystem>
header, and range-for
, you can simply do this:
#include <filesystem>
using recursive_directory_iterator = std::filesystem::recursive_directory_iterator;
...
for (const auto& dirEntry : recursive_directory_iterator(myPath))
std::cout << dirEntry << std::endl;
As of C++17, std::filesystem
is part of the standard library and can be found in the <filesystem>
header (no longer "experimental").
An excellent plug-in is jscrollpane
This works fine with hostname, reverse IP (for internal networks) and IP.
function pingAddress($ip) {
$ping = exec("ping -n 2 $ip", $output, $status);
if (strpos($output[2], 'unreachable') !== FALSE) {
return '<span style="color:#f00;">OFFLINE</span>';
} else {
return '<span style="color:green;">ONLINE</span>';
}
}
echo pingAddress($ip);
To do POST you'll need to have a form.
<form action="employee.action" method="post">
<input type="submit" value="Employee1" />
</form>
There are some ways to post data with hyperlinks, but you'll need some javascript, and a form.
Some tricks: Make a link use POST instead of GET and How do you post data with a link
Edit: to load response on a frame you can target your form to your frame:
<form action="employee.action" method="post" target="myFrame">
Found a solution with pop
and map
d = {'a': 'valueA', 'b': 'valueB', 'c': 'valueC', 'd': 'valueD'}
keys = ['a', 'b', 'c']
list(map(d.pop, keys))
print(d)
The output of this:
{'d': 'valueD'}
I have answered this question so late just because I think it will help in the future if anyone searches the same. And this might help.
Update
The above code will throw an error if a key does not exist in the dict.
DICTIONARY = {'a': 'valueA', 'b': 'valueB', 'c': 'valueC', 'd': 'valueD'}
keys = ['a', 'l', 'c']
def remove_keys(key):
try:
DICTIONARY.pop(key, None)
except:
pass # or do any action
list(map(remove_key, keys))
print(DICTIONARY)
output:
DICTIONARY = {'b': 'valueB', 'd': 'valueD'}
// Pass in function expiration date to check token
function checkToken(exp) {
if (Date.now() <= exp * 1000) {
console.log(true, 'token is not expired')
} else {
console.log(false, 'token is expired')
}
}
See the answer 'favorite bit of code' that works
Here is how I used it:
// Delete all rows from the WebLog table via the EF database context object
// using a where clause that returns an IEnumerable typed list WebLog class
public IEnumerable<WebLog> DeleteAllWebLogEntries()
{
IEnumerable<WebLog> myEntities = context.WebLog.Where(e => e.WebLog_ID > 0);
context.WebLog.RemoveRange(myEntities);
context.SaveChanges();
return myEntities;
}
getClass()
method is defined in Object class with the following signature:
public final Class getClass()
Since it is not defined as static
, you can not call it within a static code block. See these answers for more information: Q1, Q2, Q3.
If you're in a static context, then you have to use the class literal expression to get the Class, so you basically have to do like:
Foo.class
This type of expression is called Class Literals and they are explained in Java Language Specification Book as follows:
A class literal is an expression consisting of the name of a class, interface, array, or primitive type followed by a `.' and the token class. The type of a class literal is Class. It evaluates to the Class object for the named type (or for void) as defined by the defining class loader of the class of the current instance.
You can also find information about this subject on API documentation for Class.
You can do it by using ereg_replace
$str = 'This Is New Method Ever';
$newstr = ereg_replace([[:space:]])+', '', trim($str)):
echo $newstr
// Result - ThisIsNewMethodEver
The heap memory is the runtime data area from which the Java VM allocates memory for all class instances and arrays. The heap may be of a fixed or variable size. The garbage collector is an automatic memory management system that reclaims heap memory for objects.
Eden Space: The pool from which memory is initially allocated for most objects.
Survivor Space: The pool containing objects that have survived the garbage collection of the Eden space.
Tenured Generation or Old Gen: The pool containing objects that have existed for some time in the survivor space.
Non-heap memory includes a method area shared among all threads and memory required for the internal processing or optimization for the Java VM. It stores per-class structures such as a runtime constant pool, field and method data, and the code for methods and constructors. The method area is logically part of the heap but, depending on the implementation, a Java VM may not garbage collect or compact it. Like the heap memory, the method area may be of a fixed or variable size. The memory for the method area does not need to be contiguous.
Permanent Generation: The pool containing all the reflective data of the virtual machine itself, such as class and method objects. With Java VMs that use class data sharing, this generation is divided into read-only and read-write areas.
Code Cache: The HotSpot Java VM also includes a code cache, containing memory that is used for compilation and storage of native code.
I have the problem in FreeBSD 8.1:
- No module named _sqlite3 -
It is solved by stand the port ----------
/usr/ports/databases/py-sqlite3
after this one can see:
OK ----------
'>>>' import sqlite3 -----
'>>>' sqlite3.apilevel -----
'2.0'
A couple libraries have been mentioned here, but I miss the one that I was actually looking for: Spring!
There is the ObjectUtils#containsConstant which is case insensitive by default, but can be strict if you want. It is used like this:
if(ObjectUtils.containsConstant(Choices.values(), "SOME_CHOISE", true)){
// do stuff
}
Note: I used the overloaded method here to demonstrate how to use case sensitive check. You can omit the boolean to have case insensitive behaviour.
Be careful with large enums though, as they don't use the Map implementation as some do...
As a bonus, it also provides a case insensitive variant of the valueOf: ObjectUtils#caseInsensitiveValueOf
Instead of:
int count = 0;
for (int i = 0; i<args.length -1; ++i)
count++;
System.out.println(count);
}
you can just
int count = args.length;
The average is the sum of your args divided by the number of your args.
int res = 0;
int count = args.lenght;
for (int a : args)
{
res += a;
}
res /= count;
you can make this code shorter too, i'll let you try and ask if you need help!
This is my first answerso tell me if something wrong!
I realize this question is fairly old, but wanted to share a quick demo of group transforms, paths/shapes, and relative positioning, for anyone else who found their way here looking for more info:
On my linux system to get just the filenames
diff -q /dir1 /dir2|cut -f2 -d' '
You will need to Build and Archive your project. You may need to check what code signing settings you have in the project and executable.
Use the Organiser to select your archive version and then you can Share that version of your project. You will need to select the correct code signing again. It will allow you to save the .ipa file where you want.
Drag and drop the .ipa file into iTunes and then sync with your iPhone.
For those of you that do need a non jQuery answer you can simple add the following:
xmlhttp.setRequestHeader('X-CSRF-Token', $('meta[name="csrf-token"]').attr('content'));
A very simple example can be sen here:
xmlhttp.open("POST","example.html",true); xmlhttp.setRequestHeader('X-CSRF-Token', $('meta[name="csrf-token"]').attr('content')); xmlhttp.send();
To retreive the value of all selected item in à listbox you can cast selected item in DataRowView and then select column where your data is:
foreach(object element in listbox.SelectedItems) {
DataRowView row = (DataRowView)element;
MessageBox.Show(row[0]);
}
Here's the nearly shortest possible solution to your question. The solution works in python 3.x. For python 2.x change the import
to Tkinter
rather than tkinter
(the difference being the capitalization):
import tkinter as tk
#import Tkinter as tk # for python 2
def create_window():
window = tk.Toplevel(root)
root = tk.Tk()
b = tk.Button(root, text="Create new window", command=create_window)
b.pack()
root.mainloop()
This is definitely not what I recommend as an example of good coding style, but it illustrates the basic concepts: a button with a command, and a function that creates a window.
Apply classes to your TDs, apply the appropriate widths (remember to leave one of them without a width so it assumes the remainder of the width), then apply the appropriate styles. Copy and paste the code below into an editor and view in a browser to see it function.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
<!--
td { vertical-align: top; }
.leftcolumn { background: #CCC; width: 20%; padding: 10px; }
.centercolumn { background: #999; padding: 10px; width: 15%; }
.rightcolumn { background: #666; padding: 10px; }
-->
</style>
</head>
<body>
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<td class="leftcolumn">This is the left column. It is set to 20% width.</td>
<td class="centercolumn">
<p>Hi,</p>
<p>I want to wrap a text that is added to the TD. I have tried with style="word-wrap: break-word;" width="15%". But the wrap is not happening. Is it mandatory to give 100% width ? But I have got other controls to display so only 15% width available.</p>
<p>Need help.</p>
<p>TIA.</p>
</td>
<td class="rightcolumn">This is the right column, it has no width so it assumes the remainder from the 15% and 20% assumed by the others. By default, if a width is applied and no white-space declarations are made, your text will automatically wrap.</td>
</tr>
</table>
</body>
</html>
HEAD
is not the latest revision, it's the current revision. Usually, it's the latest revision of the current branch, but it doesn't have to be.
master
is a name commonly given to the main branch, but it could be called anything else (or there could be no main branch).
origin
is a name commonly given to the main remote. remote is another repository that you can pull from and push to. Usually it's on some server, like github.
iostream doesn't know it's at the end of the file until it tries to read that first character past the end of the file.
The sample code at cplusplus.com says to do it like this: (But you shouldn't actually do it this way)
while (is.good()) // loop while extraction from file is possible
{
c = is.get(); // get character from file
if (is.good())
cout << c;
}
A better idiom is to move the read into the loop condition, like so:
(You can do this with all istream
read operations that return *this
, including the >>
operator)
char c;
while(is.get(c))
cout << c;
In Your HTML
<input type="button" name="Release" onclick="hello();" value="Click to Release" />
In Your JavaScript
<script type="text/javascript">
function hello(){
alert('Your message here');
}
</script>
If you need to run PHP in JavaScript You need to use JQuery Ajax Function
<script type="text/javascript">
function hello(){
$.ajax(
{
type: 'post',
url: 'folder/my_php_file.php',
data: '&id=' + $('#id').val() + '&name=' + $('#name').val(),
dataType: 'json',
//alert(data);
success: function(data)
{
//alert(data);
}
});
}
</script>
Now in your my_php_file.php file
<?php
echo 'hello';
?>
Good Luck !!!!!
the probleme of these array of function are not in the "array form" but in the way these functions are called... then... try this.. with a simple eval()...
array_of_function = ["fx1()","fx2()","fx3()",.."fxN()"]
var zzz=[];
for (var i=0; i<array_of_function.length; i++)
{ var zzz += eval( array_of_function[i] ); }
it work's here, where nothing upper was doing the job at home... hopes it will help
You can also use the setProperty method like below
document.getElementById('divName').style.setProperty("top", "100px");
try this
var locations = [
['San Francisco: Power Outage', 37.7749295, -122.4194155,'http://labs.google.com/ridefinder/images/mm_20_purple.png'],
['Sausalito', 37.8590937, -122.4852507,'http://labs.google.com/ridefinder/images/mm_20_red.png'],
['Sacramento', 38.5815719, -121.4943996,'http://labs.google.com/ridefinder/images/mm_20_green.png'],
['Soledad', 36.424687, -121.3263187,'http://labs.google.com/ridefinder/images/mm_20_blue.png'],
['Shingletown', 40.4923784, -121.8891586,'http://labs.google.com/ridefinder/images/mm_20_yellow.png']
];
//inside the loop
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map,
icon: locations[i][3]
});
NSMutableAttributedString *text = [self.myUILabel.attributedText mutableCopy];
[text addAttribute:NSUnderlineStyleAttributeName value:@(NSUnderlineStyleSingle) range:NSMakeRange(0, text.length)];
self.myUILabel.attributedText = text;
If you know the exact axis you want, then
pylab.ylim([0,1000])
works as answered previously. But if you want a more flexible axis to fit your exact data, as I did when I found this question, then set axis limit to be the length of your dataset. If your dataset is fft
as in the question, then add this after your plot command:
length = (len(fft))
pylab.ylim([0,length])
Above posts answers questions related to URL Encoding and How it works, but the original questions was "Should I URL-encode POST data?" which isn't answered.
From my recent experience with URL Encoding, I would like to extend the question further. "Should I URL-encode POST data, same as GET HTTP method. Generally, HTML Forms over the Browser if are filled, submitted and/or GET some information, Browsers will do URL Encoding but If an application exposes a web-service and expects Consumers to do URL-Encoding on data, is it Architecturally and Technically correct to do URL Encode with POST HTTP method ?"
In 2015, if you still getting this confusing error, blame python default setuptools that PIP uses.
pip install -U setuptools
pip install blahblah
It will work fine.
UPDATE: It won't work fine for all libraries. I still get some error with few modules, that require lib-headers. They only thing that work flawlessly is Linux platform
A variation on SMNALLY's code that doesn't quit Excel if you already have it open:
import os, os.path
import win32com.client
if os.path.exists("excelsheet.xlsm"):
xl=win32com.client.Dispatch("Excel.Application")
wb = xl.Workbooks.Open(os.path.abspath("excelsheet.xlsm"), ReadOnly=1) #create a workbook object
xl.Application.Run("excelsheet.xlsm!modulename.macroname")
wb.Close(False) #close the work sheet object rather than quitting excel
del wb
del xl
In python strings are list of characters, but they are not explicitly list type, just list-like (i.e. it can be treated like a list). More formally, they're known as sequence
(see http://docs.python.org/2/library/stdtypes.html#sequence-types-str-unicode-list-tuple-bytearray-buffer-xrange):
>>> a = 'foo bar'
>>> isinstance(a, list)
False
>>> isinstance(a, str)
True
Since strings are sequence, you can use slicing
to access parts of the list, denoted by list[start_index:end_index]
see Explain Python's slice notation . For example:
>>> a = [1,2,3,4]
>>> a[0]
1 # first element, NOT a sequence.
>>> a[0:1]
[1] # a slice from first to second, a list, i.e. a sequence.
>>> a[0:2]
[1, 2]
>>> a[:2]
[1, 2]
>>> x = "foo bar"
>>> x[0:2]
'fo'
>>> x[:2]
'fo'
When undefined, the slice notation takes the starting position as the 0, and end position as len(sequence).
In the olden C days, it's an array of characters, the whole issue of dynamic vs static list sounds like legend now, see Python List vs. Array - when to use?
In my case I was using a different account, I created an app on Itunes but selected different account on Xcode. So just Selected the right account on Xcode and it worked for me.
//Use following to check if the id is a valid ObjectId?
var valid = mongoose.Types.ObjectId.isValid(req.params.id);
if(valid)
{
//process your code here
} else {
//the id is not a valid ObjectId
}
Just give the AlertDialog this theme
<style name="DialogTheme" parent="Theme.MaterialComponents.Light.Dialog.MinWidth">
<item name="colorPrimary">@color/colorPrimary</item>
<item name="android:windowMinWidthMajor">90%</item>
<item name="android:windowMinWidthMinor">90%</item>
</style>