Turns out I will missing a class called mysql-connector-java-5.1.2.jar, I added it this folder (C:\Program Files\pentaho\design-tools\data-integration\lib) and it worked with a MySQL connection and my data and tables appear.
You can add ViewStateMode="Disabled"
asp:UpdatePanel ID="UpdatePanel1" runat="server" ViewStateMode="Disabled"
There is a method setText()
which takes 3 arguments :
public void setText(String text, String charset, String subtype)
throws MessagingException
Parameters:
text - the text content to set
charset - the charset to use for the text
subtype - the MIME subtype to use (e.g., "html")
NOTE: the subtype takes text after / in MIME types so for ex.
If the transfer mode is Buffered then make sure that the values of MaxReceivedMessageSize and MaxBufferSize is same. I just resolved the faulted state issue this way after grappling with it for hours and thought i'll post it here if it helps someone.
FYI I had the same issue with that error message and it was that I had 2 form tags on the same page. There was one in the Master page and one in the page itself. Soon as I removed the second form tag pair the problem went away.
In my case, I was using InstallUtil.exe
which was causing an error. To install the .Net Core
service in window best way to use sc
command.
More information here Exe installation throwing error The module was expected to contain an assembly manifest .Net Core
Since we cut down a list in to half every time therefore we just need to know in how many steps we get 1 as we go on dividing a list by two. In the under given calculation x denotes the numbers of time we divide a list until we get one element(In Worst Case).
1 = N/2x
2x = N
Taking log2
log2(2x) = log2(N)
x*log2(2) = log2(N)
x = log2(N)
I agree with Elisey. I got this same error after opening my project in the 2.4 preview and then opening the same project in android studio 2.3
Fixed the issue by changing this line in build.gradle from
classpath 'com.android.tools.build:gradle:2.4.0-alpha5'
to
classpath 'com.android.tools.build:gradle:2.3.1'
Not what you asked but may be useful nevertheless.
Of course you can do the same thing with matrix formulas. Just read the result of the cell that contains:
Cell A1="Text to search"
Cells A2:C20=Range to search for
=COUNT(SEARCH(A1;A2:C20;1))
Remember that entering matrix formulas needs CTRL+SHIFT+ENTER, not just ENTER. After, it should look like :
{=COUNT(SEARCH(A1;A2:C20;1))}
InputStream is;
try {
is = new FileInputStream("c://filename");
is.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return is;
In a batch file (Windows 7 and above) I found this method most reliable
Call :logging >"C:\Temp\NAME_Your_Log_File.txt" 2>&1
:logging
TITLE "Logging Commands"
ECHO "Read this output in your log file"
ECHO ..
Prompt $_
COLOR 0F
Obviously, use whatever commands you want and the output will be directed to the text file. Using this method is reliable HOWEVER there is NO output on the screen.
This blog explains your problem neatly Async Best Practices.
The gist of it being you shouldn't use void as return for an async method, unless it's an async event handler, this is bad practice because it doesn't allow exceptions to be caught ;-).
Best practice would be to change the return type to Task. Also, try to code async all the way trough, make every async method call and be called from async methods. Except for a Main method in a console, which can't be async (before C# 7.1).
You will run into deadlocks with GUI and ASP.NET applications if you ignore this best practice. The deadlock occurs because these applications runs on a context that allows only one thread and won't relinquish it to the async thread. This means the GUI waits synchronously for a return, while the async method waits for the context: deadlock.
This behaviour won't happen in a console application, because it runs on context with a thread pool. The async method will return on another thread which will be scheduled. This is why a test console app will work, but the same calls will deadlock in other applications...
Bootstrap 4 requires you to target the li
item for active classes. In order to do that you have to find the parent of the a
. The 'hitbox' of the a
is as big as the li
but due to bubbeling of event in JS it will give you back the a
event. So you have to manually add it to its parent.
//set active navigation after click
$(".nav-link").on("click", (event) => {
$(".navbar-nav").find(".active").removeClass('active');
$(event.target).parent().addClass('active');
});
Spark is very picky with the Java version you use. It is highly recommended that you use Java 1.8 (The open source AdoptOpenJDK 8 works well too).
After install it, set JAVA_HOME
to your bash variables, if you use Mac/Linux:
export JAVA_HOME=$(/usr/libexec/java_home -v 1.8)
export PATH=$JAVA_HOME/bin:$PATH
The call to InitializeComponent()
(which is usually called in the default constructor of at least Window
and UserControl
) is actually a method call to the partial class of the control (rather than a call up the object hierarchy as I first expected).
This method locates a URI to the XAML for the Window
/UserControl
that is loading, and passes it to the System.Windows.Application.LoadComponent()
static method. LoadComponent()
loads the XAML file that is located at the passed in URI, and converts it to an instance of the object that is specified by the root element of the XAML file.
In more detail, LoadComponent
creates an instance of the XamlParser
, and builds a tree of the XAML. Each node is parsed by the XamlParser.ProcessXamlNode()
. This gets passed to the BamlRecordWriter
class. Some time after this I get a bit lost in how the BAML is converted to objects, but this may be enough to help you on the path to enlightenment.
Note: Interestingly, the InitializeComponent
is a method on the System.Windows.Markup.IComponentConnector
interface, of which Window
/UserControl
implement in the partial generated class.
Hope this helps!
This is how I make forms full screen.
private void button1_Click(object sender, EventArgs e)
{
int minx, miny, maxx, maxy;
inx = miny = int.MaxValue;
maxx = maxy = int.MinValue;
foreach (Screen screen in Screen.AllScreens)
{
var bounds = screen.Bounds;
minx = Math.Min(minx, bounds.X);
miny = Math.Min(miny, bounds.Y);
maxx = Math.Max(maxx, bounds.Right);
maxy = Math.Max(maxy, bounds.Bottom);
}
Form3 fs = new Form3();
fs.Activate();
Rectangle tempRect = new Rectangle(1, 0, maxx, maxy);
this.DesktopBounds = tempRect;
}
Cardview
is a bit coy. I had list of colors in my structure and Model is like
class ModelColor : Serializable {
var id: Int? = 0
var title: String? = ""
var color: Int? = 0// HERE IS THE COLOR FIELD WE WILL USE
constructor(id: Int?, title: String?, color: Int?) {
this.id = id
this.title = title
this.color = color
}
}
load the model with color, last item on constructure taking from R.color
list.add(ModelColor(2, getString(R.string.orange), R.color.orange_500))
and finaly you can setBackgriundResource
cv_add_goal_choose_color.setBackgroundResource(color)
In my case, I was using example from https://hapijs.com/
To fix the problem I replaced
server.connection({
host: 'localhost',
port: 8000
});
with
server.connection({
port: process.env.PORT || 3000
});
In java, there are two types of parameters, implicit parameters and explicit parameters. Explicit parameters are the arguments passed into a method. The implicit parameter of a method is the instance that the method is called from. Arguments are simply one of the two types of parameters.
It turns out that this is such a common and useful practice that the overlords of Git made it really easy, but you have to have a newer version of Git (>= 1.7.11 May 2012). See the appendix for how to install the latest Git. Also, there's a real-world example in the walkthrough below.
Prepare the old repo
cd <big-repo>
git subtree split -P <name-of-folder> -b <name-of-new-branch>
Note: <name-of-folder>
must NOT contain leading or trailing characters. For instance, the folder named subproject
MUST be passed as subproject
, NOT ./subproject/
Note for Windows users: When your folder depth is > 1, <name-of-folder>
must have *nix style folder separator (/). For instance, the folder named path1\path2\subproject
MUST be passed as path1/path2/subproject
Create the new repo
mkdir ~/<new-repo> && cd ~/<new-repo>
git init
git pull </path/to/big-repo> <name-of-new-branch>
Link the new repo to GitHub or wherever
git remote add origin <[email protected]:user/new-repo.git>
git push -u origin master
Cleanup inside <big-repo>
, if desired
git rm -rf <name-of-folder>
Note: This leaves all the historical references in the repository. See the Appendix below if you're actually concerned about having committed a password or you need to decreasing the file size of your .git
folder.
These are the same steps as above, but following my exact steps for my repository instead of using <meta-named-things>
.
Here's a project I have for implementing JavaScript browser modules in node:
tree ~/node-browser-compat
node-browser-compat
+-- ArrayBuffer
+-- Audio
+-- Blob
+-- FormData
+-- atob
+-- btoa
+-- location
+-- navigator
I want to split out a single folder, btoa
, into a separate Git repository
cd ~/node-browser-compat/
git subtree split -P btoa -b btoa-only
I now have a new branch, btoa-only
, that only has commits for btoa
and I want to create a new repository.
mkdir ~/btoa/ && cd ~/btoa/
git init
git pull ~/node-browser-compat btoa-only
Next, I create a new repo on GitHub or Bitbucket, or whatever and add it as the origin
git remote add origin [email protected]:node-browser-compat/btoa.git
git push -u origin master
Happy day!
Note: If you created a repo with a README.md
, .gitignore
and LICENSE
, you will need to pull first:
git pull origin master
git push origin master
Lastly, I'll want to remove the folder from the bigger repo
git rm -rf btoa
To get the latest version of Git using Homebrew:
brew install git
sudo apt-get update
sudo apt-get install git
git --version
If that doesn't work (you have a very old version of Ubuntu), try
sudo add-apt-repository ppa:git-core/ppa
sudo apt-get update
sudo apt-get install git
If that still doesn't work, try
sudo chmod +x /usr/share/doc/git/contrib/subtree/git-subtree.sh
sudo ln -s \
/usr/share/doc/git/contrib/subtree/git-subtree.sh \
/usr/lib/git-core/git-subtree
Thanks to rui.araujo from the comments.
By default removing files from Git doesn't actually remove them, it just commits that they aren't there anymore. If you want to actually remove the historical references (i.e. you committed a password), you need to do this:
git filter-branch --prune-empty --tree-filter 'rm -rf <name-of-folder>' HEAD
After that, you can check that your file or folder no longer shows up in the Git history at all
git log -- <name-of-folder> # should show nothing
However, you can't "push" deletes to GitHub and the like. If you try, you'll get an error and you'll have to git pull
before you can git push
- and then you're back to having everything in your history.
So if you want to delete history from the "origin" - meaning to delete it from GitHub, Bitbucket, etc - you'll need to delete the repo and re-push a pruned copy of the repo. But wait - there's more! - if you're really concerned about getting rid of a password or something like that you'll need to prune the backup (see below).
.git
smallerThe aforementioned delete history command still leaves behind a bunch of backup files - because Git is all too kind in helping you to not ruin your repo by accident. It will eventually delete orphaned files over the days and months, but it leaves them there for a while in case you realize that you accidentally deleted something you didn't want to.
So if you really want to empty the trash to reduce the clone size of a repo immediately you have to do all of this really weird stuff:
rm -rf .git/refs/original/ && \
git reflog expire --all && \
git gc --aggressive --prune=now
git reflog expire --all --expire-unreachable=0
git repack -A -d
git prune
That said, I'd recommend not performing these steps unless you know that you need to - just in case you did prune the wrong subdirectory, y'know? The backup files shouldn't get cloned when you push the repo, they'll just be in your local copy.
git commit --amend
and press Enter.git push --force example-branch
command to force push over the old commit.Source: https://help.github.com/articles/changing-a-commit-message/
Put the following code into head section in your web page programming.
<head>
<style>.carousel-inner > .item > img { width:100%; height:570px; } </style>
</head>
You have to take custom cell and add Label and set constraint such as label should cover entire cell area. and write the below line in constructor.
- (void)awakeFromNib {
// Initialization code
self.separatorInset = UIEdgeInsetsMake(0, 10000, 0, 0);
//self.layoutMargins = UIEdgeInsetsZero;
[self setBackgroundColor:[UIColor clearColor]];
[self setSelectionStyle:UITableViewCellSelectionStyleNone];
}
Also set UITableView Layout margin as follow
tblSignup.layoutMargins = UIEdgeInsetsZero;
If the variable holding the dataframe is called df, then:
len(df.columns)
gives the number of columns.
And for those who want the number of rows:
len(df.index)
For a tuple containing the number of both rows and columns:
df.shape
The 'mangler' in the above code sample was doing the equivalent of this:
bytesThing = stringThing.encode(encoding='UTF-8')
There are other ways to write this (notably using bytes(stringThing, encoding='UTF-8')
, but the above syntax makes it obvious what is going on, and also what to do to recover the string:
newStringThing = bytesThing.decode(encoding='UTF-8')
When we do this, the original string is recovered.
Note, using str(bytesThing)
just transcribes all the gobbledegook without converting it back into Unicode, unless you specifically request UTF-8, viz., str(bytesThing, encoding='UTF-8')
. No error is reported if the encoding is not specified.
You can join a table to itself as many times as you require, it is called a self join.
An alias is assigned to each instance of the table (as in the example below) to differentiate one from another.
SELECT a.SelfJoinTableID
FROM dbo.SelfJoinTable a
INNER JOIN dbo.SelfJoinTable b
ON a.SelfJoinTableID = b.SelfJoinTableID
INNER JOIN dbo.SelfJoinTable c
ON a.SelfJoinTableID = c.SelfJoinTableID
WHERE a.Status = 'Status to filter a'
AND b.Status = 'Status to filter b'
AND c.Status = 'Status to filter c'
Starting in version 0.7.9 you can use the filter operator .isnot
instead of comparing constraints, like this:
query.filter(User.name.isnot(None))
This method is only necessary if pep8 is a concern.
source: sqlalchemy documentation
You could use feature detection to see if browser is IE10 or greater like so:
var isIE = false;
if (window.navigator.msPointerEnabled) {
isIE = true;
}
Only true if > IE9
To Access the Camera and take pictures and set ImageView on Android
You have to use Uri file = Uri.fromFile(getOutputMediaFile());
for marshmallow.
Use below link to get path
The current, ie. 2017 way to do this is:
heroku pg:reset DATABASE
https://devcenter.heroku.com/articles/heroku-postgresql#pg-reset
pow
only works on floating-point numbers (double
s, actually). If you want to take powers of integers, and the base isn't known to be an exponent of 2
, you'll have to roll your own.
Usually the dumb way is good enough.
int power(int base, unsigned int exp) {
int i, result = 1;
for (i = 0; i < exp; i++)
result *= base;
return result;
}
Here's a recursive solution which takes O(log n)
space and time instead of the easy O(1)
space O(n)
time:
int power(int base, int exp) {
if (exp == 0)
return 1;
else if (exp % 2)
return base * power(base, exp - 1);
else {
int temp = power(base, exp / 2);
return temp * temp;
}
}
This version of Stephen's answer doesn't change the name in the JSON:
[DataContract(
Namespace =
"http://schemas.datacontract.org/2004/07/Whatever")]
class Person
{
[DataMember]
int Age { get; set; }
Gender Gender { get; set; }
[DataMember(Name = "Gender")]
string GenderString
{
get { return this.Gender.ToString(); }
set
{
Gender g;
this.Gender = Enum.TryParse(value, true, out g) ? g : Gender.Male;
}
}
}
something like this?
if(is_numeric($time)){
$value = array(
"years" => 0, "days" => 0, "hours" => 0,
"minutes" => 0, "seconds" => 0,
);
if($time >= 31556926){
$value["years"] = floor($time/31556926);
$time = ($time%31556926);
}
if($time >= 86400){
$value["days"] = floor($time/86400);
$time = ($time%86400);
}
if($time >= 3600){
$value["hours"] = floor($time/3600);
$time = ($time%3600);
}
if($time >= 60){
$value["minutes"] = floor($time/60);
$time = ($time%60);
}
$value["seconds"] = floor($time);
return (array) $value;
} else{
return (bool) FALSE;
}
grabbed from: http://www.ckorp.net/sec2time.php
You can use a data trigger (with a view model) on the button to enable a wait cursor.
<Button x:Name="NextButton"
Content="Go"
Command="{Binding GoCommand }">
<Button.Style>
<Style TargetType="{x:Type Button}">
<Setter Property="Cursor" Value="Arrow"/>
<Style.Triggers>
<DataTrigger Binding="{Binding Path=IsWorking}" Value="True">
<Setter Property="Cursor" Value="Wait"/>
</DataTrigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
Here is the code from the view-model:
public class MainViewModel : ViewModelBase
{
// most code removed for this example
public MainViewModel()
{
GoCommand = new DelegateCommand<object>(OnGoCommand, CanGoCommand);
}
// flag used by data binding trigger
private bool _isWorking = false;
public bool IsWorking
{
get { return _isWorking; }
set
{
_isWorking = value;
OnPropertyChanged("IsWorking");
}
}
// button click event gets processed here
public ICommand GoCommand { get; private set; }
private void OnGoCommand(object obj)
{
if ( _selectedCustomer != null )
{
// wait cursor ON
IsWorking = true;
_ds = OrdersManager.LoadToDataSet(_selectedCustomer.ID);
OnPropertyChanged("GridData");
// wait cursor off
IsWorking = false;
}
}
}
Some of the problems:
for i in range[6]:
for j in range[6]:
should be:
range(6)
In my case it was due to the object reference getting stale. I was automating my application using selenium webdriver, so i type something into a text box and then it navigates to another page, so while i come back on the previous page , that object gets stale. So this was causing the exception, I handled it by again initialising the elements - PageFactory.initElements(driver, Test.class;
Get these values from attributes:
int[] attrs = new int[] { android.R.attr.textColorSecondary };
TypedArray a = getTheme().obtainStyledAttributes(R.style.AppTheme, attrs);
DEFAULT_TEXT_COLOR = a.getColor(0, Color.RED);
a.recycle();
The PID is stored in $$
.
Example: kill -9 $$
will kill the shell instance it is called from.
try:
SELECT first_name + ISNULL(' '+last_name, '') AS Name FROM dbo.person
This adds the space to the last name, if it is null, the entire space+last name goes to NULL and you only get a first name, otherwise you get a firts+space+last name.
this will work as long as the default setting for concatenation with null strings is set:
SET CONCAT_NULL_YIELDS_NULL ON
this shouldn't be a concern since the OFF
mode is going away in future versions of SQl Server
Why does it give me that error?
Because your first parameter you pass to the loop
function is None but your function is expecting an callable object, which None object isn't.
Therefore you have to pass the callable-object which is in your case the hi
function object.
def hi():
print 'hi'
def loop(f, n): #f repeats n times
if n<=0:
return
else:
f()
loop(f, n-1)
loop(hi, 5)
If you just want the bitmap, This too works
InputStream inputStream = mContext.getContentResolver().openInputStream(uri);
Bitmap bmp = BitmapFactory.decodeStream(inputStream);
if( inputStream != null ) inputStream.close();
sample uri : content://media/external/images/media/12345
I use something like this:
<?php
$lang = get_bloginfo("language");
if ($lang == 'fr-FR') : ?>
<p>Bienvenue!</p>
<?php endif; ?>
I think the problem is your script is executed before the target dom element is loaded in the dom... one reason could be that you have placed your script in the head of the page or in a script tag that is placed before the div element #main
. So when the script is executed it won't be able to find the target element thus the error.
One solution is to place your script in the load event handler like
window.onload = function () {
var main = new Vue({
el: '#main',
data: {
currentActivity: 'home'
}
});
}
Another syntax
window.addEventListener('load', function () {
//your script
})
Posted another solution that implements WebApplicationInitializer and is called much before any spring bean is instantiated, in case someone has that use case
Initialize default Locale and Timezone with Spring configuration
You can use the strip() to remove trailing and leading spaces.
>>> s = ' abd cde '
>>> s.strip()
'abd cde'
Note: the internal spaces are preserved
Thread th = new Thread(function1);
th.Start();
th.Abort();
void function1(){
//code here
}
Add a reference to the ngForm
directive in your html code and this gives you access to the form.
<form #myForm="ngForm" (ngSubmit)="addPost(); myForm.reset()"> ... </form>
Or pass the form to the function:
<form #myForm="ngForm" (ngSubmit)="addPost(myForm)"> ... </form>
addPost(form: NgForm){
this.newPost = {
title: this.title,
body: this.body
}
this._postService.addPost(this.newPost);
form.resetForm(); // or form.reset();
}
The difference between resetForm
and reset
is that the former will clear the form fields as well as any validation, while the later will only clear the fields. Use resetForm after the form is validated and submitted, otherwise use reset.
Adding another example for people who can't get the above to work.
With button press:
<form #heroForm="ngForm">
...
<button type="button" class="btn btn-default" (click)="newHero(); heroForm.reset()">New Hero</button>
</form>
Same thing applies above, you can also choose to pass the form to the newHero
function.
You can use sys.argv
to get the arguments as a list.
If you need to access individual elements, you can use
sys.argv[i]
where i
is index, 0
will give you the python filename being executed. Any index after that are the arguments passed.
i think you use this method to compress the bitmap
BitmapFactory.Option imageOpts = new BitmapFactory.Options ();
imageOpts.inSampleSize = 2; // for 1/2 the image to be loaded
Bitmap thumb = Bitmap.createScaledBitmap (BitmapFactory.decodeFile(photoPath, imageOpts), 96, 96, false);
You can use the following method inside the catch block:
response.sendError(HttpStatus.UNAUTHORIZED.value(), "Invalid token")
Notice that you can use any HttpStatus code and a custom message.
You can access columns by index, by name and some other ways:
dtResult.Rows(i)("columnName") = strVerse
You should probably make sure your DataTable
has some columns first...
Building off of @gnovice's answer, you can actually create filled plots with shading only in the area between the two curves. Just use fill
in conjunction with fliplr
.
Example:
x=0:0.01:2*pi; %#initialize x array
y1=sin(x); %#create first curve
y2=sin(x)+.5; %#create second curve
X=[x,fliplr(x)]; %#create continuous x value array for plotting
Y=[y1,fliplr(y2)]; %#create y values for out and then back
fill(X,Y,'b'); %#plot filled area
By flipping the x array and concatenating it with the original, you're going out, down, back, and then up to close both arrays in a complete, many-many-many-sided polygon.
I didn't know about the join function - Nice! I had written a function that I placed in the code section (report properties->code tab:
Public Function ShowParmValues(ByVal parm as Parameter) as string
Dim s as String
For i as integer = 0 to parm.Count-1
s &= CStr(parm.value(i)) & IIF( i < parm.Count-1, ", ","")
Next
Return s
End Function
You can use this class : TouchImageView
Read the file through and count the number of newline characters. An easy way to read a file in Java, one line at a time, is the java.util.Scanner class.
If the above solutions doesn't work then try to place java path before maven in path of environment variable. It worked for me.
%JAVA_HOME%\bin
C:\Program Files\apache-maven-3.6.1-bin\apache-maven-3.6.1\bin
print("My type is %s" % type(someObject)) # the type in python
or...
print("My type is %s" % type(someObject).__name__) # the object's type (the class you defined)
Rob's solution is very nice, only thing that in his -(void)adjustHeightOfTableview
method the calling of
[self.view needsUpdateConstraints]
does nothing, it just returns a flag, instead calling
[self.view setNeedsUpdateConstraints]
will make the desired effect.
var first_number = parseInt(document.getElementById("Text1").value);
var second_number = parseInt(document.getElementById("Text2").value);
// This is because your method .getElementById has the letter 's': .getElement**s**ById
Many sites use AJAX/XHR/fetch to add, show, modify content dynamically and window.history API instead of in-site navigation so current URL is changed programmatically. Such sites are called SPA, short for Single Page Application.
MutationObserver (docs) to literally detect DOM changes:
Performance of MutationObserver to detect nodes in entire DOM.
Simple example:
let lastUrl = location.href;
new MutationObserver(() => {
const url = location.href;
if (url !== lastUrl) {
lastUrl = url;
onUrlChange();
}
}).observe(document, {subtree: true, childList: true});
function onUrlChange() {
console.log('URL changed!', location.href);
}
Event listener for sites that signal content change by sending a DOM event:
pjax:end
on document
used by many pjax-based sites e.g. GitHub,message
on window
used by e.g. Google search in Chrome browser,yt-navigate-finish
used by Youtube,Periodic checking of DOM via setInterval:
Obviously this will work only in cases when you wait for a specific element identified by its id/selector to appear, and it won't let you universally detect new dynamically added content unless you invent some kind of fingerprinting the existing contents.
Cloaking History API:
let _pushState = History.prototype.pushState;
History.prototype.pushState = function (state, title, url) {
_pushState.call(this, state, title, url);
console.log('URL changed', url)
};
Listening to hashchange, popstate events:
window.addEventListener('hashchange', e => {
console.log('URL hash changed', e);
doSomething();
});
window.addEventListener('popstate', e => {
console.log('State changed', e);
doSomething();
});
All above-mentioned methods can be used in a content script. Note that content scripts aren't automatically executed by the browser in case of programmatic navigation via window.history in the web page because only the URL was changed but the page itself remained the same (the content scripts run automatically only once in page lifetime).
Now let's look at the background script.
There are advanced API to work with navigation: webNavigation, webRequest, but we'll use simple chrome.tabs.onUpdated event listener that sends a message to the content script:
manifest.json:
declare background/event page
declare content script
add "tabs"
permission.
background.js
var rxLookfor = /^https?:\/\/(www\.)?google\.(com|\w\w(\.\w\w)?)\/.*?[?#&]q=/;
chrome.tabs.onUpdated.addListener(function (tabId, changeInfo, tab) {
if (rxLookfor.test(changeInfo.url)) {
chrome.tabs.sendMessage(tabId, 'url-update');
}
});
content.js
chrome.runtime.onMessage.addListener((msg, sender, sendResponse) => {
if (msg === 'url-update') {
// doSomething();
}
});
it needs to be .Row.count not Row.Number?
That's what I used and it works fine Sub TransfersToCleared() Dim ws As Worksheet Dim LastRow As Long Set ws = Application.Worksheets("Export (2)") 'Data Source LastRow = Range("A" & Rows.Count).End(xlUp).Row ws.Range("A2:AB" & LastRow).SpecialCells(xlCellTypeVisible).Copy
The question says "How to declare array of zeros ..." but then the sample code references the Python list:
buckets = [] # this is a list
However, if someone is actually wanting to initialize an array, I suggest:
from array import array
my_arr = array('I', [0] * count)
The Python purist might claim this is not pythonic and suggest:
my_arr = array('I', (0 for i in range(count)))
The pythonic version is very slow and when you have a few hundred arrays to be initialized with thousands of values, the difference is quite noticeable.
I know the question is a few years old now, but expanding on Ivella's last idea, this bash script estimates the line count of a big file within seconds or less by measuring the size of one line and extrapolating from it:
#!/bin/bash
head -2 $1 | tail -1 > $1_oneline
filesize=$(du -b $1 | cut -f -1)
linesize=$(du -b $1_oneline | cut -f -1)
rm $1_oneline
echo $(expr $filesize / $linesize)
If you name this script lines.sh
, you can call lines.sh bigfile.txt
to get the estimated number of lines. In my case (about 6 GB, export from database), the deviation from the true line count was only 3%, but ran about 1000 times faster. By the way, I used the second, not first, line as the basis, because the first line had column names and the actual data started in the second line.
As mentioned by sombody above, restarting eclipse worked for me for the user defined environment variable.
After I restart eclipse IDE, System.getenv()
is picking up my environment variable.
It is a good approach. I use it myself as well. I would only suggest to override onCreate
to set the singleton instead of using a constructor.
And since you mentioned SQLiteOpenHelper
: In onCreate ()
you can open the database as well.
Personally I think the documentation got it wrong in saying that There is normally no need to subclass Application. I think the opposite is true: You should always subclass Application.
String strConnection = Properties.Settings.Default.BooksConnectionString;
SqlConnection con = new SqlConnection(strConnection);
SqlCommand sqlCmd = new SqlCommand();
sqlCmd.Connection = con;
sqlCmd.CommandType = CommandType.Text;
sqlCmd.CommandText = "Select * from titles";
SqlDataAdapter sqlDataAdap = new SqlDataAdapter(sqlCmd);
DataTable dtRecord = new DataTable();
sqlDataAdap.Fill(dtRecord);
dataGridView1.DataSource = dtRecord;
Answering here because this is a popular thread. This is a clean solution in Kotlin that uses the recommended UrlQuerySanitizer
api. See the official documentation. I have added a string builder to concatenate and display the params.
var myURL: String? = null
if (intent.hasExtra("my_value")) {
myURL = intent.extras.getString("my_value")
} else {
myURL = intent.dataString
}
val sanitizer = UrlQuerySanitizer(myURL)
// We don't want to manually define every expected query *key*, so we set this to true
sanitizer.allowUnregisteredParamaters = true
val parameterNamesToValues: List<UrlQuerySanitizer.ParameterValuePair> = sanitizer.parameterList
val parameterIterator: Iterator<UrlQuerySanitizer.ParameterValuePair> = parameterNamesToValues.iterator()
// Helper simply so we can display all values on screen
val stringBuilder = StringBuilder()
while (parameterIterator.hasNext()) {
val parameterValuePair: UrlQuerySanitizer.ParameterValuePair = parameterIterator.next()
val parameterName: String = parameterValuePair.mParameter
val parameterValue: String = parameterValuePair.mValue
// Append string to display all key value pairs
stringBuilder.append("Key: $parameterName\nValue: $parameterValue\n\n")
}
// Set a textView's text to display the string
val paramListString = stringBuilder.toString()
val textView: TextView = findViewById(R.id.activity_title) as TextView
textView.text = "Paramlist is \n\n$paramListString"
// to check if the url has specific keys
if (sanitizer.hasParameter("type")) {
val type = sanitizer.getValue("type")
println("sanitizer has type param $type")
}
In Go, there is a general rule that syntax should not hide complex/costly operations. Converting a string
to an interface{}
is done in O(1) time. Converting a []string
to an interface{}
is also done in O(1) time since a slice is still one value. However, converting a []string
to an []interface{}
is O(n) time because each element of the slice must be converted to an interface{}
.
The one exception to this rule is converting strings. When converting a string
to and from a []byte
or a []rune
, Go does O(n) work even though conversions are "syntax".
There is no standard library function that will do this conversion for you. You could make one with reflect, but it would be slower than the three line option.
Example with reflection:
func InterfaceSlice(slice interface{}) []interface{} {
s := reflect.ValueOf(slice)
if s.Kind() != reflect.Slice {
panic("InterfaceSlice() given a non-slice type")
}
// Keep the distinction between nil and empty slice input
if s.IsNil() {
return nil
}
ret := make([]interface{}, s.Len())
for i:=0; i<s.Len(); i++ {
ret[i] = s.Index(i).Interface()
}
return ret
}
Your best option though is just to use the lines of code you gave in your question:
b := make([]interface{}, len(a))
for i := range a {
b[i] = a[i]
}
HTML or Jsp Page
<input type="text" name="1UserName">
<input type="text" name="2Password">
<Input type="text" name="3MobileNo">
<input type="text" name="4country">
and so on...
in java Code
SortedSet ss = new TreeSet();
Enumeration<String> enm=request.getParameterNames();
while(enm.hasMoreElements())
{
String pname = enm.nextElement();
ss.add(pname);
}
Iterator i=ss.iterator();
while(i.hasNext())
{
String param=(String)i.next();
String value=request.getParameter(param);
}
varunl's currently accepted answer
>>> l = [None] * 10
>>> l
[None, None, None, None, None, None, None, None, None, None]
Works well for non-reference types like numbers. Unfortunately if you want to create a list-of-lists you will run into referencing errors. Example in Python 2.7.6:
>>> a = [[]]*10
>>> a
[[], [], [], [], [], [], [], [], [], []]
>>> a[0].append(0)
>>> a
[[0], [0], [0], [0], [0], [0], [0], [0], [0], [0]]
>>>
As you can see, each element is pointing to the same list object. To get around this, you can create a method that will initialize each position to a different object reference.
def init_list_of_objects(size):
list_of_objects = list()
for i in range(0,size):
list_of_objects.append( list() ) #different object reference each time
return list_of_objects
>>> a = init_list_of_objects(10)
>>> a
[[], [], [], [], [], [], [], [], [], []]
>>> a[0].append(0)
>>> a
[[0], [], [], [], [], [], [], [], [], []]
>>>
There is likely a default, built-in python way of doing this (instead of writing a function), but I'm not sure what it is. Would be happy to be corrected!
Edit: It's [ [] for _ in range(10)]
Example :
>>> [ [random.random() for _ in range(2) ] for _ in range(5)]
>>> [[0.7528051908943816, 0.4325669600055032], [0.510983236521753, 0.7789949902294716], [0.09475179523690558, 0.30216475640534635], [0.3996890132468158, 0.6374322093017013], [0.3374204010027543, 0.4514925173253973]]
The canonical examples are __declspec(dllimport)
and __declspec(dllexport)
, which instruct the linker to import and export (respectively) a symbol from or to a DLL.
// header
__declspec(dllimport) void foo();
// code - this calls foo() somewhere in a DLL
foo();
(__declspec(..)
just wraps up Microsoft's specific stuff - to achieve compatibility, one would usually wrap it away with macros)
Car.js
class Car {
getName() {return 'car'};
}
export default Car;
TestFile.js
const object = require('./Car.js');
const instance = new object();
error: TypeError: instance is not a constructor
printing content of object
object = {default: Car}
append default to the require function and it will work as contructor
const object = require('object-fit-images').default;
const instance = new object();
instance.getName();
Step 1: Install the dependencies
sudo apt-get install build-dep python-psycopg2
Step 2: Run this command in your virtualenv
pip install psycopg2
Ref: Fernando Munoz
Sorry.Though it is a bit late but hope it would help others as well . Always use the stdClass object.e.g
$getvidids = $ci->db->query("SELECT * FROM videogroupids WHERE videogroupid='$videogroup' AND used='0' LIMIT 10");
foreach($getvidids->result() as $key=>$myids)
{
$vidid[$key] = $myids->videoid; // better methodology to retrieve and store multiple records in arrays in loop
}
for me "I" was capital in "Images". which also angular-cli didn't like. so it is also case sensitive.
Some web servers like IIS don't have problem with that, if angular application is hosted in IIS, case sensitive is not a problem.
I had the same issue with spring
MarshallingMessageConverter
and by pre-proccess code.
Mayby someone will need reason: BytesMessage #readBytes - reading bytes.. and i forgot that reading is one direction operation. You can not read twice.
I know that are already many answers written for this solution however I want to show another javascript method (dependent on JQuery) in which you simply need to include ONLY a single JS File without any dependency on CSS or Gif Images in your code and that will take care of all progress bar related animations that happens during Ajax Request. You need to simnply pass javascript function like this
var objGlobalEvent = new RegisterGlobalEvents(true, "");
Here is the working fiddle for the code. https://jsfiddle.net/vibs2006/c7wukc41/3/
$variable = "Variable";
echo "<script>console.log('$variable');</script>";
PHP and JavaScript interaction.
try creating connection string this way:
MySqlConnectionStringBuilder conn_string = new MySqlConnectionStringBuilder();
conn_string.Server = "mysql7.000webhost.com";
conn_string.UserID = "a455555_test";
conn_string.Password = "a455555_me";
conn_string.Database = "xxxxxxxx";
using (MySqlConnection conn = new MySqlConnection(conn_string.ToString()))
using (MySqlCommand cmd = conn.CreateCommand())
{ //watch out for this SQL injection vulnerability below
cmd.CommandText = string.Format("INSERT Test (lat, long) VALUES ({0},{1})",
OSGconv.deciLat, OSGconv.deciLon);
conn.Open();
cmd.ExecuteNonQuery();
}
Use the Request.UrlReferrer
property.
Underneath the scenes it is just checking the ServerVariables("HTTP_REFERER")
property.
I've tried in a sample project to use standard, @2x and @3x images, and the iPhone 6+ simulator uses the @3x image. So it would seem that there are @3x images to be done (if the simulator actually replicates the device's behavior).
But the strange thing is that all devices (simulators) seem to use this @3x image when it's on the project structure, iPhone 4S/iPhone 5 too.
The lack of communication from Apple on a potential @3x structure, while they ask developers to publish their iOS8 apps is quite confusing, especially when seeing those results on simulator.
**Edit from Apple's Website **: Also found this on the "What's new on iOS 8" section on Apple's developer space :
Support for a New Screen Scale The iPhone 6 Plus uses a new Retina HD display with a screen scale of 3.0. To provide the best possible experience on these devices, include new artwork designed for this screen scale. In Xcode 6, asset catalogs can include images at 1x, 2x, and 3x sizes; simply add the new image assets and iOS will choose the correct assets when running on an iPhone 6 Plus. The image loading behavior in iOS also recognizes an @3x suffix.
Still not understanding why all devices seem to load the @3x. Maybe it's because I'm using regular files and not xcassets ? Will try soon.
Edit after further testing : Ok it seems that iOS8 has a talk in this. When testing on an iOS 7.1 iPhone 5 simulator, it uses correctly the @2x image. But when launching the same on iOS 8 it uses the @3x on iPhone 5. Not sure if that's a wanted behavior or a mistake/bug in iOS8 GM or simulators in Xcode 6 though.
There are various APIs available to read/write XML files through Java. I would refer using StaX
Also This can be useful - Java XML APIs
<?php
// Custom PHP MySQL Pagination Tutorial and Script
// You have to put your mysql connection data and alter the SQL queries(both queries)
mysql_connect("DATABASE_Host_Here","DATABASE_Username_Here","DATABASE_Password_Here") or die (mysql_error());
mysql_select_db("DATABASE_Name_Here") or die (mysql_error());
////////////// QUERY THE MEMBER DATA INITIALLY LIKE YOU NORMALLY WOULD
$sql = mysql_query("SELECT id, firstname, country FROM myTable ORDER BY id ASC");
//////////////////////////////////// Pagination Logic ////////////////////////////////////////////////////////////////////////
$nr = mysql_num_rows($sql); // Get total of Num rows from the database query
if (isset($_GET['pn'])) { // Get pn from URL vars if it is present
$pn = preg_replace('#[^0-9]#i', '', $_GET['pn']); // filter everything but numbers for security(new)
//$pn = ereg_replace("[^0-9]", "", $_GET['pn']); // filter everything but numbers for security(deprecated)
} else { // If the pn URL variable is not present force it to be value of page number 1
$pn = 1;
}
//This is where we set how many database items to show on each page
$itemsPerPage = 10;
// Get the value of the last page in the pagination result set
$lastPage = ceil($nr / $itemsPerPage);
// Be sure URL variable $pn(page number) is no lower than page 1 and no higher than $lastpage
if ($pn < 1) { // If it is less than 1
$pn = 1; // force if to be 1
} else if ($pn > $lastPage) { // if it is greater than $lastpage
$pn = $lastPage; // force it to be $lastpage's value
}
// This creates the numbers to click in between the next and back buttons
// This section is explained well in the video that accompanies this script
$centerPages = "";
$sub1 = $pn - 1;
$sub2 = $pn - 2;
$add1 = $pn + 1;
$add2 = $pn + 2;
if ($pn == 1) {
$centerPages .= ' <span class="pagNumActive">' . $pn . '</span> ';
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add1 . '">' . $add1 . '</a> ';
} else if ($pn == $lastPage) {
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub1 . '">' . $sub1 . '</a> ';
$centerPages .= ' <span class="pagNumActive">' . $pn . '</span> ';
} else if ($pn > 2 && $pn < ($lastPage - 1)) {
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub2 . '">' . $sub2 . '</a> ';
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub1 . '">' . $sub1 . '</a> ';
$centerPages .= ' <span class="pagNumActive">' . $pn . '</span> ';
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add1 . '">' . $add1 . '</a> ';
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add2 . '">' . $add2 . '</a> ';
} else if ($pn > 1 && $pn < $lastPage) {
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub1 . '">' . $sub1 . '</a> ';
$centerPages .= ' <span class="pagNumActive">' . $pn . '</span> ';
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add1 . '">' . $add1 . '</a> ';
}
// This line sets the "LIMIT" range... the 2 values we place to choose a range of rows from database in our query
$limit = 'LIMIT ' .($pn - 1) * $itemsPerPage .',' .$itemsPerPage;
// Now we are going to run the same query as above but this time add $limit onto the end of the SQL syntax
// $sql2 is what we will use to fuel our while loop statement below
$sql2 = mysql_query("SELECT id, firstname, country FROM myTable ORDER BY id ASC $limit");
//////////////////////////////// END Pagination Logic ////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////// Pagination Display Setup /////////////////////////////////////////////////////////////////////
$paginationDisplay = ""; // Initialize the pagination output variable
// This code runs only if the last page variable is ot equal to 1, if it is only 1 page we require no paginated links to display
if ($lastPage != "1"){
// This shows the user what page they are on, and the total number of pages
$paginationDisplay .= 'Page <strong>' . $pn . '</strong> of ' . $lastPage. ' ';
// If we are not on page 1 we can place the Back button
if ($pn != 1) {
$previous = $pn - 1;
$paginationDisplay .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $previous . '"> Back</a> ';
}
// Lay in the clickable numbers display here between the Back and Next links
$paginationDisplay .= '<span class="paginationNumbers">' . $centerPages . '</span>';
// If we are not on the very last page we can place the Next button
if ($pn != $lastPage) {
$nextPage = $pn + 1;
$paginationDisplay .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $nextPage . '"> Next</a> ';
}
}
///////////////////////////////////// END Pagination Display Setup ///////////////////////////////////////////////////////////////////////////
// Build the Output Section Here
$outputList = '';
while($row = mysql_fetch_array($sql2)){
$id = $row["id"];
$firstname = $row["firstname"];
$country = $row["country"];
$outputList .= '<h1>' . $firstname . '</h1><h2>' . $country . ' </h2><hr />';
} // close while loop
?>
<html>
<head>
<title>Simple Pagination</title>
</head>
<body>
<div style="margin-left:64px; margin-right:64px;">
<h2>Total Items: <?php echo $nr; ?></h2>
</div>
<div style="margin-left:58px; margin-right:58px; padding:6px; background-color:#FFF; border:#999 1px solid;"><?php echo $paginationDisplay; ?></div>
<div style="margin-left:64px; margin-right:64px;"><?php print "$outputList"; ?></div>
<div style="margin-left:58px; margin-right:58px; padding:6px; background-color:#FFF; border:#999 1px solid;"><?php echo $paginationDisplay; ?></div>
</body>
</html>
You can use \centering
with your parbox to do this.
(Sorry for the Google cached link; the original one I had doesn't work anymore.)
You may consider declaring the variables with moudule level scope. Module-level variable is available to all of the procedures in that module, but it is not available to procedures in other modules
For details on Scope of variables
refer this link
Please copy the below code into any module, save the workbook and then run the code.
Here is what code does
The sample subroutine sets the folder path & later the file path. Kindly set them accordingly before you run the code.
I have added a function IsWorkBookOpen to check if workbook is already then set the workbook variable the workbook name else open the workbook which will be assigned to workbook variable accordingly.
Dim wbA As Workbook
Dim wbB As Workbook
Sub MySubRoutine()
Dim folderPath As String, fileNm1 As String, fileNm2 As String, filePath1 As String, filePath2 As String
folderPath = ThisWorkbook.Path & "\"
fileNm1 = "file1.xlsx"
fileNm2 = "file2.xlsx"
filePath1 = folderPath & fileNm1
filePath2 = folderPath & fileNm2
If IsWorkBookOpen(filePath1) Then
Set wbA = Workbooks(fileNm1)
Else
Set wbA = Workbooks.Open(filePath1)
End If
If IsWorkBookOpen(filePath2) Then
Set wbB = Workbooks.Open(fileNm2)
Else
Set wbB = Workbooks.Open(filePath2)
End If
' your code here
End Sub
Function IsWorkBookOpen(FileName As String)
Dim ff As Long, ErrNo As Long
On Error Resume Next
ff = FreeFile()
Open FileName For Input Lock Read As #ff
Close ff
ErrNo = Err
On Error GoTo 0
Select Case ErrNo
Case 0: IsWorkBookOpen = False
Case 70: IsWorkBookOpen = True
Case Else: Error ErrNo
End Select
End Function
Using Prompt to select the file use below code.
Dim wbA As Workbook
Dim wbB As Workbook
Sub MySubRoutine()
Dim folderPath As String, fileNm1 As String, fileNm2 As String, filePath1 As String, filePath2 As String
Dim filePath As String
cmdBrowse_Click filePath, 1
filePath1 = filePath
'reset the variable
filePath = vbNullString
cmdBrowse_Click filePath, 2
filePath2 = filePath
fileNm1 = GetFileName(filePath1, "\")
fileNm2 = GetFileName(filePath2, "\")
If IsWorkBookOpen(filePath1) Then
Set wbA = Workbooks(fileNm1)
Else
Set wbA = Workbooks.Open(filePath1)
End If
If IsWorkBookOpen(filePath2) Then
Set wbB = Workbooks.Open(fileNm2)
Else
Set wbB = Workbooks.Open(filePath2)
End If
' your code here
End Sub
Function IsWorkBookOpen(FileName As String)
Dim ff As Long, ErrNo As Long
On Error Resume Next
ff = FreeFile()
Open FileName For Input Lock Read As #ff
Close ff
ErrNo = Err
On Error GoTo 0
Select Case ErrNo
Case 0: IsWorkBookOpen = False
Case 70: IsWorkBookOpen = True
Case Else: Error ErrNo
End Select
End Function
Private Sub cmdBrowse_Click(ByRef filePath As String, num As Integer)
Dim fd As FileDialog
Set fd = Application.FileDialog(msoFileDialogFilePicker)
fd.AllowMultiSelect = False
fd.Title = "Select workbook " & num
fd.InitialView = msoFileDialogViewSmallIcons
Dim FileChosen As Integer
FileChosen = fd.Show
fd.Filters.Clear
fd.Filters.Add "Excel macros", "*.xlsx"
fd.FilterIndex = 1
If FileChosen <> -1 Then
MsgBox "You chose cancel"
filePath = ""
Else
filePath = fd.SelectedItems(1)
End If
End Sub
Function GetFileName(fullName As String, pathSeparator As String) As String
Dim i As Integer
Dim iFNLenght As Integer
iFNLenght = Len(fullName)
For i = iFNLenght To 1 Step -1
If Mid(fullName, i, 1) = pathSeparator Then Exit For
Next
GetFileName = Right(fullName, iFNLenght - i)
End Function
Yes definitely you can connect to the MySql online database for that you need to create a web service. This web service will provide you access to the MySql database. Then you can easily pull and push data to MySql Database. PHP will be a good option for creating web service its simple to implement. Good luck...
Using sed
:
sed -n -e '/^abc$/,/^mno$/{ /^abc$/d; /^mno$/d; p; }'
The -n
option means do not print by default.
The pattern looks for lines containing just abc
to just mno
, and then executes the actions in the { ... }
. The first action deletes the abc
line; the second the mno
line; and the p
prints the remaining lines. You can relax the regexes as required. Any lines outside the range of abc
..mno
are simply not printed.
You can check the type of variable by using typeof
operator:
typeof variable
The code below returns true for numbers and false for anything else:
!isNaN(+variable);
The parseInt
function allows you to specify a radix for the input string and is limited to integer values.
parseInt('Z', 36) === 35
The Number
constructor called as a function will parse the string with a grammar and is limited to base 10 and base 16.
StringNumericLiteral ::: StrWhiteSpaceopt StrWhiteSpaceopt StrNumericLiteral StrWhiteSpaceopt StrWhiteSpace ::: StrWhiteSpaceChar StrWhiteSpaceopt StrWhiteSpaceChar ::: WhiteSpace LineTerminator StrNumericLiteral ::: StrDecimalLiteral HexIntegerLiteral StrDecimalLiteral ::: StrUnsignedDecimalLiteral + StrUnsignedDecimalLiteral - StrUnsignedDecimalLiteral StrUnsignedDecimalLiteral ::: Infinity DecimalDigits . DecimalDigitsopt ExponentPartopt . DecimalDigits ExponentPartopt DecimalDigits ExponentPartopt DecimalDigits ::: DecimalDigit DecimalDigits DecimalDigit DecimalDigit ::: one of 0 1 2 3 4 5 6 7 8 9 ExponentPart ::: ExponentIndicator SignedInteger ExponentIndicator ::: one of e E SignedInteger ::: DecimalDigits + DecimalDigits - DecimalDigits HexIntegerLiteral ::: 0x HexDigit 0X HexDigit HexIntegerLiteral HexDigit HexDigit ::: one of 0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F
MacPorts will install ant for you in MacOSX 10.9. Just use
$ sudo port install apache-ant
and it will install.
Change this:
<div class=fetch_results>
To this:
<div id="fetch_results">
Then the following should work:
$("#fetch_results input").each(function() {
this.value = "";
})?
After two dozens of comments to understand the situation, it was found that the libhdf5.so.7
was actually a symlink (with several levels of indirection) to a file that was not shared between the queued processes and the interactive processes. This means even though the symlink itself lies on a shared filesystem, the contents of the file do not and as a result the process was seeing different versions of the library.
For future reference: other than checking LD_LIBRARY_PATH
, it's always a good idea to check a library with nm -D
to see if the symbols actually exist. In this case it was found that they do exist in interactive mode but not when run in the queue. A quick md5sum
revealed that the files were actually different.
&& and || are short circuit operators operating on scalars. & and | operate on arrays, and use short-circuiting only in the context of if
or while
loop expressions.
I experienced this issue and couldn't figure out a fix for a few hours, until I realised I had incorrectly prevented
native events from occurring with:
<input type="checkbox" @click.prevent="toggleConfirmedStatus(render.uuid)"
:checked="confirmed.indexOf(render.uuid) > -1"
:value="render.uuid"
/>
removing the .prevent
from the @click
handler fixed my issue.
edit: it's currently 2016-09-24, and PHP 5.4 has been released 2012-03-01, and support has ended 2015-09-01. Still, this answer seems to gain upvotes. If you're still using PHP < 5.4, your are creating a security risk and endagering your project. If you have no compelling reasons to stay at <5.4, or even already use version >= 5.4, do not use this answer, and just use PHP>= 5.4 (or, you know, a recent one) and implement the JsonSerializable interface
You would define a function, for instance named getJsonData();
, which would return either an array, stdClass
object, or some other object with visible parameters rather then private/protected ones, and do a json_encode($data->getJsonData());
. In essence, implement the function from 5.4, but call it by hand.
Something like this would work, as get_object_vars()
is called from inside the class, having access to private/protected variables:
function getJsonData(){
$var = get_object_vars($this);
foreach ($var as &$value) {
if (is_object($value) && method_exists($value,'getJsonData')) {
$value = $value->getJsonData();
}
}
return $var;
}
declare @locationType varchar(50);
declare @locationID int;
SELECT column1, column2
FROM viewWhatever
WHERE
@locationID =
CASE @locationType
WHEN 'location' THEN account_location
WHEN 'area' THEN xxx_location_area
WHEN 'division' THEN xxx_location_division
END
I would suggest using mpld3 which combines D3js javascript visualizations with matplotlib of python.
The installation and usage is really simple and it has some cool plugins and interactive stuffs.
My key was password protected which was causing the problem, a working file is now listed below (for help of future googlers)
FROM ubuntu
MAINTAINER Luke Crooks "[email protected]"
# Update aptitude with new repo
RUN apt-get update
# Install software
RUN apt-get install -y git
# Make ssh dir
RUN mkdir /root/.ssh/
# Copy over private key, and set permissions
# Warning! Anyone who gets their hands on this image will be able
# to retrieve this private key file from the corresponding image layer
ADD id_rsa /root/.ssh/id_rsa
# Create known_hosts
RUN touch /root/.ssh/known_hosts
# Add bitbuckets key
RUN ssh-keyscan bitbucket.org >> /root/.ssh/known_hosts
# Clone the conf files into the docker container
RUN git clone [email protected]:User/repo.git
Use immediate children selector >
:
$('#tblOne > tbody > tr')
Description: Selects all direct child elements specified by "child" of elements specified by "parent".
As far as I'm aware, you can't declare custom fonts in xml or themes. I usually just make custom classes extending textview that set their own font on instantiation and use those in my layout xml files.
ie:
public class Museo500TextView extends TextView {
public Museo500TextView(Context context, AttributeSet attrs) {
super(context, attrs);
this.setTypeface(Typeface.createFromAsset(context.getAssets(), "path/to/font.ttf"));
}
}
and
<my.package.views.Museo900TextView
android:id="@+id/dialog_error_text_header"
android:layout_width="190dp"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:textSize="12sp" />
Since you need to accommodate many different phone number formats (and probably include things like extensions etc.) it may make the most sense to just treat it as you would any other varchar. If you could control the input, you could take a number of approaches to make the data more useful, but it doesn't sound that way.
Once you decide to simply treat it as any other string, you can focus on overcoming the inevitable issues regarding bad data, mysterious phone number formating and whatever else will pop up. The challenge will be in building a good search strategy for the data and not how you store it in my opinion. It's always a difficult task having to deal with a large pile of data which you had no control over collecting.
You can do this in a try and catch block:
try:
if val is None:
print("null")
except NameError:
# throw an exception or do something else
You can use canvas’ context.translate & context.rotate to do rotate your image
Here’s a function to draw an image that is rotated by the specified degrees:
function drawRotated(degrees){
context.clearRect(0,0,canvas.width,canvas.height);
// save the unrotated context of the canvas so we can restore it later
// the alternative is to untranslate & unrotate after drawing
context.save();
// move to the center of the canvas
context.translate(canvas.width/2,canvas.height/2);
// rotate the canvas to the specified degrees
context.rotate(degrees*Math.PI/180);
// draw the image
// since the context is rotated, the image will be rotated also
context.drawImage(image,-image.width/2,-image.width/2);
// we’re done with the rotating so restore the unrotated context
context.restore();
}
Here is code and a Fiddle: http://jsfiddle.net/m1erickson/6ZsCz/
<!doctype html>
<html>
<head>
<link rel="stylesheet" type="text/css" media="all" href="css/reset.css" /> <!-- reset css -->
<script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script>
<style>
body{ background-color: ivory; }
canvas{border:1px solid red;}
</style>
<script>
$(function(){
var canvas=document.getElementById("canvas");
var ctx=canvas.getContext("2d");
var angleInDegrees=0;
var image=document.createElement("img");
image.onload=function(){
ctx.drawImage(image,canvas.width/2-image.width/2,canvas.height/2-image.width/2);
}
image.src="houseicon.png";
$("#clockwise").click(function(){
angleInDegrees+=30;
drawRotated(angleInDegrees);
});
$("#counterclockwise").click(function(){
angleInDegrees-=30;
drawRotated(angleInDegrees);
});
function drawRotated(degrees){
ctx.clearRect(0,0,canvas.width,canvas.height);
ctx.save();
ctx.translate(canvas.width/2,canvas.height/2);
ctx.rotate(degrees*Math.PI/180);
ctx.drawImage(image,-image.width/2,-image.width/2);
ctx.restore();
}
}); // end $(function(){});
</script>
</head>
<body>
<canvas id="canvas" width=300 height=300></canvas><br>
<button id="clockwise">Rotate right</button>
<button id="counterclockwise">Rotate left</button>
</body>
</html>
Yo don't need any java code. You just have to :
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:adjustViewBounds="true"
android:scaleType="centerCrop" />
The key is in the match parent for width and height
You can use list comprehension on a dataframe to count frequencies of the columns as such
[my_series[c].value_counts() for c in list(my_series.select_dtypes(include=['O']).columns)]
Breakdown:
my_series.select_dtypes(include=['O'])
Selects just the categorical data
list(my_series.select_dtypes(include=['O']).columns)
Turns the columns from above into a list
[my_series[c].value_counts() for c in list(my_series.select_dtypes(include=['O']).columns)]
Iterates through the list above and applies value_counts() to each of the columns
$(function(){
$(window).resize(function(){
var h = $(window).height();
var w = $(window).width();
$("#elementToResize").css('height',(h < 768 || w < 1024) ? 500 : 400);
});
});
Scrollbars etc have an effect on the window size so you may want to tweak to desired size.
The secret key is combined with the header and the payload to create a unique hash. You are only able to verify this hash if you have the secret key.
You can choose a good, long password. Or you can generate it from a site like this.
Example (but don't use this one now):
8Zz5tw0Ionm3XPZZfN0NOml3z9FMfmpgXwovR9fp6ryDIoGRM8EPHAB6iHsc0fb
Setting overflow: hidden
hides the scrollbar. Set overflow: scroll
to make sure the scrollbar appears all the time.
To use the ::webkit-scrollbar
property, simply target .scroll
before calling it.
.scroll {
width: 200px;
height: 400px;
background: red;
overflow: scroll;
}
.scroll::-webkit-scrollbar {
width: 12px;
}
.scroll::-webkit-scrollbar-track {
-webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3);
border-radius: 10px;
}
.scroll::-webkit-scrollbar-thumb {
border-radius: 10px;
-webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.5);
}
?
See this live example
I don't understand why we are confusing things up here. So I'll write down a clear explanation, and what you have to notice.
All the commands will be written using dotnet
.
This solution is provided for .net Core 3.1, but should be compatible with all other generations as well
cd to_your_project
then dotnet ef migrations remove
Note: Removing a migration works only, if you didn't execute yet dotnet ef database update
or called in your c# code Database.Migrate()
, in other words, only if the migration is not applied to your database yet.
dotnet ef migrations add <your_changes>
and apply it, which is recommended by microsoft.dotnet ef database update <your_migration_name_to_jump_back_to>
Note: if the migration you want to unapply, does not contain a specific column or table, which are already in your database applied and being used, the column or table will be dropped, and your data will be lost.
After reverting the migration, you can remove your unwanted migration
Hopefully this helps someone!
list4 = list1.Concat(list2).Concat(list3).ToList();
Give the first div float: left;
and a fixed width, and give the second div width: 100%;
and float: left;
. That should do the trick. If you want to place items below it you need a clear: both;
on the item you want to place below it.
Its just because of the load time angular takes to give you the current state.
If you try to get the current state by using $timeout
function then it will give you correct result in $state.current.name
$timeout(function(){
$rootScope.currState = $state.current.name;
})
Well, my solution is sort of hack, but it works and I am using it.
1vw = 1% of viewport width
1vh = 1% of viewport height
1vmin = 1vw or 1vh, whichever is smaller
1vmax = 1vw or 1vh, whichever is larger
h1 {
font-size: 5.9vw;
}
h2 {
font-size: 3.0vh;
}
p {
font-size: 2vmin;
}
if(getResult.Key.Equals(default(T)) && getResult.Value.Equals(default(U)))
Try this
$("#datepicker").datepicker({_x000D_
format: "yyyy",_x000D_
viewMode: "years", _x000D_
minViewMode: "years"_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.6.4/js/bootstrap-datepicker.js"></script>_x000D_
<link href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.6.4/css/bootstrap-datepicker.css" rel="stylesheet"/>_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
_x000D_
_x000D_
<input type="text" id="datepicker" />
_x000D_
$("#datepicker").datepicker( {
format: " yyyy", // Notice the Extra space at the beginning
viewMode: "years",
minViewMode: "years"
});
The best form is this
$('#example option').length
Normally you'd just stick the code in Page_Load
in your .aspx
page's code-behind.
if (someVar) {
Item1.Visible = true;
Item2.Visible = false;
} else {
Item1.Visible = false;
Item2.Visible = true;
}
This assumes you've got Item1
and Item2
laid out on the page already.
You could also try to include md5-hash-sums or similar do determine whether there are any differences at all. Then, only compare files which have different hashes...
Static, strongly-typed programming has always felt very natural to me, so at first I resisted learning JavaScript (not to mention HTML and CSS) when I had to build web-based front-ends for my applications. I would do anything to work around this like redirecting to a page just to perform and action on the OnLoad event, as long as I could code pure C#.
You will find however that if you are going to be working with websites, you must have an open mind and start thinking more web-oriented (that is, don't try to do client-side things on the server and vice-versa). I love ASP.NET webforms and still use it (as well as MVC), but I will say that by trying to make things simpler and hiding the separation of client and server it can confuse newcomers and actually end up making things more difficult at times.
My advice is to learn some basic JavaScript (how to register events, retrieve DOM objects, manipulate CSS, etc.) and you will find web programming much more enjoyable (not to mention easier). A lot of people mentioned different Ajax libraries, but I didn't see any actual Ajax examples, so here it goes. (If you are not familiar with Ajax, all it is, is making an asynchronous HTTP request to refresh content (or perhaps perform a server-side action in your scenario) without reloading the entire page or doing a full postback.
Client-Side:
<script type="text/javascript">
var xmlhttp = new XMLHttpRequest(); // Create object that will make the request
xmlhttp.open("GET", "http://example.org/api/service", "true"); // configure object (method, URL, async)
xmlhttp.send(); // Send request
xmlhttp.onstatereadychange = function() { // Register a function to run when the state changes, if the request has finished and the stats code is 200 (OK). Write result to <p>
if (xmlhttp.readyState == 4 && xmlhttp.statsCode == 200) {
document.getElementById("resultText").innerHTML = xmlhttp.responseText;
}
};
</script>
That's it. Although the name can be misleading the result can be in plain text or JSON as well, you are not limited to XML. jQuery provides an even simpler interface for making Ajax calls (among simplifying other JavaScript tasks).
The request can be an HTTP-POST or HTTP-GET and does not have to be to a webpage, but you can post to any service that listens for HTTP requests such as a RESTful API. The ASP.NET MVC 4 Web API makes setting up the server-side web service to handle the request a breeze as well. But many people do not know that you can also add API controllers to web forms project and use them to handle Ajax calls like this.
Server-Side:
public class DataController : ApiController
{
public HttpResponseMessage<string[]> Get()
{
HttpResponseMessage<string[]> response = new HttpResponseMessage<string[]>(
Repository.Get(true),
new MediaTypeHeaderValue("application/json")
);
return response;
}
}
Global.asax
Then just register the HTTP route in your Global.asax file, so ASP.NET will know how to direct the request.
void Application_Start(object sender, EventArgs e)
{
RouteTable.Routes.MapHttpRoute("Service", "api/{controller}/{id}");
}
With AJAX and Controllers, you can post back to the server at any time asynchronously to perform any server side operation. This one-two punch provides both the flexibility of JavaScript and the power the C# / ASP.NET, giving the people visiting your site a better overall experience. Without sacrificing anything, you get the best of both worlds.
References
Depending on which browsers you have to support, this can be done in a number of ways. The overwhelming majority of browsers in the wild support ECMAScript 5 (ES5), but be warned that many of the examples below use Object.keys
, which is not available in IE < 9. See the compatibility table.
If you have to support older versions of IE, then this is the option for you:
for (var key in obj) {
if (Object.prototype.hasOwnProperty.call(obj, key)) {
var val = obj[key];
// use val
}
}
The nested if
makes sure that you don't enumerate over properties in the prototype chain of the object (which is the behaviour you almost certainly want). You must use
Object.prototype.hasOwnProperty.call(obj, key) // ok
rather than
obj.hasOwnProperty(key) // bad
because ECMAScript 5+ allows you to create prototypeless objects with Object.create(null)
, and these objects will not have the hasOwnProperty
method. Naughty code might also produce objects which override the hasOwnProperty
method.
You can use these methods in any browser that supports ECMAScript 5 and above. These get values from an object and avoid enumerating over the prototype chain. Where obj
is your object:
var keys = Object.keys(obj);
for (var i = 0; i < keys.length; i++) {
var val = obj[keys[i]];
// use val
}
If you want something a little more compact or you want to be careful with functions in loops, then Array.prototype.forEach
is your friend:
Object.keys(obj).forEach(function (key) {
var val = obj[key];
// use val
});
The next method builds an array containing the values of an object. This is convenient for looping over.
var vals = Object.keys(obj).map(function (key) {
return obj[key];
});
// use vals array
If you want to make those using Object.keys
safe against null
(as for-in
is), then you can do Object.keys(obj || {})...
.
Object.keys
returns enumerable properties. For iterating over simple objects, this is usually sufficient. If you have something with non-enumerable properties that you need to work with, you may use Object.getOwnPropertyNames
in place of Object.keys
.
Arrays are easier to iterate with ECMAScript 2015. You can use this to your advantage when working with values one-by–one in a loop:
for (const key of Object.keys(obj)) {
const val = obj[key];
// use val
}
Using ECMAScript 2015 fat-arrow functions, mapping the object to an array of values becomes a one-liner:
const vals = Object.keys(obj).map(key => obj[key]);
// use vals array
ECMAScript 2015 introduces Symbol
, instances of which may be used as property names. To get the symbols of an object to enumerate over, use Object.getOwnPropertySymbols
(this function is why Symbol
can't be used to make private properties). The new Reflect
API from ECMAScript 2015 provides Reflect.ownKeys
, which returns a list of property names (including non-enumerable ones) and symbols.
Array comprehensions were removed from ECMAScript 6 before publication. Prior to their removal, a solution would have looked like:
const vals = [for (key of Object.keys(obj)) obj[key]];
// use vals array
ECMAScript 2016 adds features which do not impact this subject. The ECMAScript 2017 specification adds Object.values
and Object.entries
. Both return arrays (which will be surprising to some given the analogy with Array.entries
). Object.values
can be used as is or with a for-of
loop.
const values = Object.values(obj);
// use values array or:
for (const val of Object.values(obj)) {
// use val
}
If you want to use both the key and the value, then Object.entries
is for you. It produces an array filled with [key, value]
pairs. You can use this as is, or (note also the ECMAScript 2015 destructuring assignment) in a for-of
loop:
for (const [key, val] of Object.entries(obj)) {
// use key and val
}
Object.values
shimFinally, as noted in the comments and by teh_senaus in another answer, it may be worth using one of these as a shim. Don't worry, the following does not change the prototype, it just adds a method to Object
(which is much less dangerous). Using fat-arrow functions, this can be done in one line too:
Object.values = obj => Object.keys(obj).map(key => obj[key]);
which you can now use like
// ['one', 'two', 'three']
var values = Object.values({ a: 'one', b: 'two', c: 'three' });
If you want to avoid shimming when a native Object.values
exists, then you can do:
Object.values = Object.values || (obj => Object.keys(obj).map(key => obj[key]));
Be aware of the browsers/versions you need to support. The above are correct where the methods or language features are implemented. For example, support for ECMAScript 2015 was switched off by default in V8 until recently, which powered browsers such as Chrome. Features from ECMAScript 2015 should be be avoided until the browsers you intend to support implement the features that you need. If you use babel to compile your code to ECMAScript 5, then you have access to all the features in this answer.
Apart from the solution above, you can use AS
to make it in one line.
CREATE TABLE tbl_new AS SELECT * FROM tbl_old;
It's a hex number and is 16 decimal.
am assuming custom_class to be your class to override heading color of the panel. just add !important to it or add inline styles or a id and add styles as they will have more specificity over class added styles.
with !important
.custom_class{ background-color: red !important; }
with !important
with ID :
#custom_id{ background-color: red; }
-with inline styles :
<div id="custom_id" class="panel panel-default">
<div class="panel-heading custom_class" style="background-color:red">
</div>
</div>
Just a quick tip for someone who is in indecision regarding what library to use for lazy-loading images:
There are four basic ways.
DIY => Not the best solution but for a few images and if you want to go without the hassle of using others libraries
Volley's Lazy Loading library => From guys at android. It is nice and everything but is poorly documented and hence is a problem to use.
Picasso: A simple solution that just works, you can even specify the exact image size you want to bring in. It is very simple to use but might not be very "performant" for apps that has to deal with humongous amounts of images.
UIL: The best way to lazy load images. You can cache images(you need permission of course), initialize the loader once, then have your work done. The most mature asynchronous image loading library I have ever seen so far.
A simple way of doing this is via nargin
(N arguments in). The downside is you have to make sure that your argument list and the nargin checks match.
It is worth remembering that all inputs are optional, but the functions will exit with an error if it calls a variable which is not set. The following example sets defaults for b
and c
. Will exit if a
is not present.
function [ output_args ] = input_example( a, b, c )
if nargin < 1
error('input_example : a is a required input')
end
if nargin < 2
b = 20
end
if nargin < 3
c = 30
end
end
Bower has finally been deprecated. End of story.
From Mattias Petter Johansson, JavaScript developer at Spotify:
In almost all cases, it's more appropriate to use Browserify and npm over Bower. It is simply a better packaging solution for front-end apps than Bower is. At Spotify, we use npm to package entire web modules (html, css, js) and it works very well.
Bower brands itself as the package manager for the web. It would be awesome if this was true - a package manager that made my life better as a front-end developer would be awesome. The problem is that Bower offers no specialized tooling for the purpose. It offers NO tooling that I know of that npm doesn't, and especially none that is specifically useful for front-end developers. There is simply no benefit for a front-end developer to use Bower over npm.
We should stop using bower and consolidate around npm. Thankfully, that is what is happening:
With browserify or webpack, it becomes super-easy to concatenate all your modules into big minified files, which is awesome for performance, especially for mobile devices. Not so with Bower, which will require significantly more labor to get the same effect.
npm also offers you the ability to use multiple versions of modules simultaneously. If you have not done much application development, this might initially strike you as a bad thing, but once you've gone through a few bouts of Dependency hell you will realize that having the ability to have multiple versions of one module is a pretty darn great feature. Note that npm includes a very handy dedupe tool that automatically makes sure that you only use two versions of a module if you actually have to - if two modules both can use the same version of one module, they will. But if they can't, you have a very handy out.
(Note that Webpack and rollup are widely regarded to be better than Browserify as of Aug 2016.)
this is how I implement it .
let dictionary = self.convertStringToDictionary(responceString)
NotificationCenter.default.post(name: NSNotification.Name(rawValue: "SOCKET_UPDATE"), object: dictionary)
The difference between link
and controller
comes into play when you want to nest directives in your DOM and expose API functions from the parent directive to the nested ones.
From the docs:
Best Practice: use controller when you want to expose an API to other directives. Otherwise use link.
Say you want to have two directives my-form
and my-text-input
and you want my-text-input
directive to appear only inside my-form
and nowhere else.
In that case, you will say while defining the directive my-text-input
that it requires a controller from the parent
DOM element using the require argument, like this: require: '^myForm'
. Now the controller from the parent element will be injected
into the link
function as the fourth argument, following $scope, element, attributes
. You can call functions on that controller and communicate with the parent directive.
Moreover, if such a controller is not found, an error will be raised.
There is no real need to use the link
function if one is defining the controller
since the $scope
is available on the controller
. Moreover, while defining both link
and controller
, one does need to be careful about the order of invocation of the two (controller
is executed before).
However, in keeping with the Angular way, most DOM manipulation and 2-way binding using $watchers
is usually done in the link
function while the API for children and $scope
manipulation is done in the controller
. This is not a hard and fast rule, but doing so will make the code more modular and help in separation of concerns (controller will maintain the directive
state and link
function will maintain the DOM
+ outside bindings).
display
is not an attribute - it's a CSS property. You need to access the style object for this:
document.getElementById('classRight').style.display = 'none';
The __init__
method, like other methods and functions returns None by default in the absence of a return statement, so you can write it like either of these:
class Foo:
def __init__(self):
self.value=42
class Bar:
def __init__(self):
self.value=42
return None
But, of course, adding the return None
doesn't buy you anything.
I'm not sure what you are after, but you might be interested in one of these:
class Foo:
def __init__(self):
self.value=42
def __str__(self):
return str(self.value)
f=Foo()
print f.value
print f
prints:
42
42
You need to make both your method - printMenu()
and getUserChoice()
static
, as you are directly invoking them from your static main
method, without creating an instance of the class, those methods are defined in. And you cannot invoke a non-static
method without any reference to an instance of the class they are defined in.
Alternatively you can change the method invocation part to:
BookStoreApp2 bookStoreApp = new BookStoreApp2();
bookStoreApp.printMenu();
bookStoreApp.getUserChoice();
.clear() can be used to clear the text
(locator).clear();
using clear with the locator deletes all the value in that exact locator.
You can also bind
to contextmenu
and return false
:
$('selector').bind('contextmenu', function(e){
e.preventDefault();
//code
return false;
});
Demo: http://jsfiddle.net/maniator/WS9S2/
Or you can make a quick plugin that does the same:
(function( $ ) {
$.fn.rightClick = function(method) {
$(this).bind('contextmenu rightclick', function(e){
e.preventDefault();
method();
return false;
});
};
})( jQuery );
Demo: http://jsfiddle.net/maniator/WS9S2/2/
Using .on(...)
jQuery >= 1.7:
$(document).on("contextmenu", "selector", function(e){
e.preventDefault();
//code
return false;
}); //does not have to use `document`, it could be any container element.
In my situation, I didn't have the full vendor dependencies in place (composer file was messed up during original install) - so running any artisan commands caused a failure.
I was able to use the --no-scripts
flag to prevent artisan from executing before it was included. Once my dependencies were in place, everything worked as expected.
composer update --no-scripts
One solution can be using pool
of clients like the following:
const { Pool } = require('pg');
var config = {
user: 'foo',
database: 'my_db',
password: 'secret',
host: 'localhost',
port: 5432,
max: 10, // max number of clients in the pool
idleTimeoutMillis: 30000
};
const pool = new Pool(config);
pool.on('error', function (err, client) {
console.error('idle client error', err.message, err.stack);
});
pool.query('SELECT $1::int AS number', ['2'], function(err, res) {
if(err) {
return console.error('error running query', err);
}
console.log('number:', res.rows[0].number);
});
You can see more details on this resource.
Casting the integer to a char will do what you want.
char theChar=' ';
int theInt = 97;
theChar=(char) theInt;
cout<<theChar<<endl;
There is no difference between 'a' and 97 besides the way you interperet them.
You can get the pid of processes by name using pidof
through subprocess.check_output:
from subprocess import check_output
def get_pid(name):
return check_output(["pidof",name])
In [5]: get_pid("java")
Out[5]: '23366\n'
check_output(["pidof",name])
will run the command as "pidof process_name"
, If the return code was non-zero it raises a CalledProcessError.
To handle multiple entries and cast to ints:
from subprocess import check_output
def get_pid(name):
return map(int,check_output(["pidof",name]).split())
In [21]: get_pid("chrome")
Out[21]:
[27698, 27678, 27665, 27649, 27540, 27530, 27517, 14884, 14719, 13849, 13708, 7713, 7310, 7291, 7217, 7208, 7204, 7189, 7180, 7175, 7166, 7151, 7138, 7127, 7117, 7114, 7107, 7095, 7091, 7087, 7083, 7073, 7065, 7056, 7048, 7028, 7011, 6997]
Or pas the -s
flag to get a single pid:
def get_pid(name):
return int(check_output(["pidof","-s",name]))
In [25]: get_pid("chrome")
Out[25]: 27698
I wrote this javascript script and included it in the header (before anything loads). It seems to work. If the page was loaded more than one hour ago or the situation is undefined it will reload everything from server. The time of one hour = 3600000 milliseconds can be changed in the following line: if(alter > 3600000)
With regards, Birke
<script type="text/javascript">
//<![CDATA[
function zeit()
{
if(document.cookie)
{
a = document.cookie;
cookiewert = "";
while(a.length > 0)
{
cookiename = a.substring(0,a.indexOf('='));
if(cookiename == "zeitstempel")
{
cookiewert = a.substring(a.indexOf('=')+1,a.indexOf(';'));
break;
}
a = a.substring(a.indexOf(cookiewert)+cookiewert.length+1,a.length);
}
if(cookiewert.length > 0)
{
alter = new Date().getTime() - cookiewert;
if(alter > 3600000)
{
document.cookie = "zeitstempel=" + new Date().getTime() + ";";
location.reload(true);
}
else
{
return;
}
}
else
{
document.cookie = "zeitstempel=" + new Date().getTime() + ";";
location.reload(true);
}
}
else
{
document.cookie = "zeitstempel=" + new Date().getTime() + ";";
location.reload(true);
}
}
zeit();
//]]>
</script>
ReSharper does a great job of finding unused code.
In the VS IDE, you can right click on the definition and choose 'Find All References', although this only works at the solution level.
Wouldn't it be significantly more readable to do a positive match and reject those strings - rather than match the negative to find strings to accept?
/^my/
Here's some simple code to add a time out to your recv
function using poll
in C:
struct pollfd fd;
int ret;
fd.fd = mySocket; // your socket handler
fd.events = POLLIN;
ret = poll(&fd, 1, 1000); // 1 second for timeout
switch (ret) {
case -1:
// Error
break;
case 0:
// Timeout
break;
default:
recv(mySocket,buf,sizeof(buf), 0); // get your data
break;
}
Should remove units while preserving decimals.
var regExp = new RegExp("[a-z][A-Z]","g");
parseFloat($(this).css("property").replace(regExp, ""));
Make sure those two types are nullable DateTime
var lastPostDate = reader[3] == DBNull.Value ?
null :
(DateTime?) Convert.ToDateTime(reader[3]);
DateTime?
instead of Nullable<DateTime>
is a time saver...I have found this excellent explanations in Eric Lippert blog:
The specification for the ?:
operator states the following:
The second and third operands of the ?: operator control the type of the conditional expression. Let X and Y be the types of the second and third operands. Then,
If X and Y are the same type, then this is the type of the conditional expression.
Otherwise, if an implicit conversion exists from X to Y, but not from Y to X, then Y is the type of the conditional expression.
Otherwise, if an implicit conversion exists from Y to X, but not from X to Y, then X is the type of the conditional expression.
Otherwise, no expression type can be determined, and a compile-time error occurs.
The compiler doesn't check what is the type that can "hold" those two types.
In this case:
null
and DateTime
aren't the same type.null
doesn't have an implicit conversion to DateTime
DateTime
doesn't have an implicit conversion to null
So we end up with a compile-time error.
In Visual Studio 2015 From the top menu
Edit -> Advanced -> View White Space
or CTRL + E, S
That is the timeout to create the connection, NOT a timeout for commands executed over that connection.
See for instance http://www.connectionstrings.com/all-sql-server-connection-string-keywords/ (note that the property is "Connect Timeout" (or "Connection Timeout"), not just "Timeout")
From the comments:
It is not possible to set the command timeout through the connection string. However, the SqlCommand has a CommandTimeout property (derived from DbCommand) where you can set a timeout (in seconds) per command.
Do note that when you loop over query results with Read()
, the timeout is reset on every read. The timeout is for each network request, not for the total connection.
Encryption and hash algorithms work in similar ways. In each case, there is a need to create confusion and diffusion amongst the bits. Boiled down, confusion is creating a complex relationship between the key and the ciphertext, and diffusion is spreading the information of each bit around.
Many hash functions actually use encryption algorithms (or primitives of encryption algorithms. For example, the SHA-3 candidate Skein uses Threefish as the underlying method to process each block. The difference is that instead of keeping each block of ciphertext, they are destructively, deterministically merged together to a fixed length
My stack was like that:
> > ^
> > In file included from /usr/include/openssl/ssl.h:156:0,
> > from OpenSSL/crypto/x509.h:17,
> > from OpenSSL/crypto/crypto.h:17,
> > from OpenSSL/crypto/crl.c:3:
> > /usr/include/openssl/x509.h:751:15: note: previous declaration of ‘X509_REVOKED_dup’ was here
> > X509_REVOKED *X509_REVOKED_dup(X509_REVOKED *rev);
> > ^
> > error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
> >
> > ---------------------------------------- Rolling back uninstall of > pyOpenSSL Command "/home/marta/env/pb/bin/python -u -c
> "import setuptools,
> > tokenize;__file__='/tmp/pip-build-14ekWY/pyOpenSSL/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n',
> > '\n');f.close();exec(compile(code, __file__, 'exec'))" install
> > --record /tmp/pip-2HERvW-record/install-record.txt --single-version-externally-managed --compile --install-headers /home/marta/env/pb/include/site/python2.7/pyOpenSSL" failed with error
> > code 1 in /tmp/pip-build-14ekWY/pyOpenSSL/
in the same case, please consider the typo (bug) in one of the installation files and edit it manually by changing "X509_REVOKED_dup" to "X509_REVOKED_dupe" (no quotes). I have edited the x509.h file:
sed -e's/X509_REVOKED_dup/X509_REVOKED_dupe/g' -i usr/include/openssl/x509.h
and it worked for me, but please consult with the post linked below, as they edited another file:
sed -e's/X509_REVOKED_dup/X509_REVOKED_dupe/g' -i OpenSSL/crypto/crl.c
https://groups.google.com/forum/#!topic/kivy-users/Qt0jNIOACZc
@vj9 thx. I update to xcode 7 . It show me the same error. Build well after set "NO"
set "NO" it works well.
HttpClient.get()
applies res.json()
automatically and returns Observable<HttpResponse<string>>
. You no longer need to call this function yourself.
Select user id from list of user id:
SELECT * FROM my_table WHERE user_id IN (1,3,5,7,9,4);
What your looking for is the DefaultListModel - Dynamic String List Variable.
Here is a whole class that uses the DefaultListModel as though it were the TStringList of Delphi. The difference is that you can add Strings to the list without limitation and you have the same ability at getting a single entry by specifying the entry int.
FileName: StringList.java
package YOUR_PACKAGE_GOES_HERE;
//This is the StringList Class by i2programmer
//You may delete these comments
//This code is offered freely at no requirements
//You may alter the code as you wish
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.DefaultListModel;
public class StringList {
public static String OutputAsString(DefaultListModel list, int entry) {
return GetEntry(list, entry);
}
public static Object OutputAsObject(DefaultListModel list, int entry) {
return GetEntry(list, entry);
}
public static int OutputAsInteger(DefaultListModel list, int entry) {
return Integer.parseInt(list.getElementAt(entry).toString());
}
public static double OutputAsDouble(DefaultListModel list, int entry) {
return Double.parseDouble(list.getElementAt(entry).toString());
}
public static byte OutputAsByte(DefaultListModel list, int entry) {
return Byte.parseByte(list.getElementAt(entry).toString());
}
public static char OutputAsCharacter(DefaultListModel list, int entry) {
return list.getElementAt(entry).toString().charAt(0);
}
public static String GetEntry(DefaultListModel list, int entry) {
String result = "";
result = list.getElementAt(entry).toString();
return result;
}
public static void AddEntry(DefaultListModel list, String entry) {
list.addElement(entry);
}
public static void RemoveEntry(DefaultListModel list, int entry) {
list.removeElementAt(entry);
}
public static DefaultListModel StrToList(String input, String delimiter) {
DefaultListModel dlmtemp = new DefaultListModel();
input = input.trim();
delimiter = delimiter.trim();
while (input.toLowerCase().contains(delimiter.toLowerCase())) {
int index = input.toLowerCase().indexOf(delimiter.toLowerCase());
dlmtemp.addElement(input.substring(0, index).trim());
input = input.substring(index + delimiter.length(), input.length()).trim();
}
return dlmtemp;
}
public static String ListToStr(DefaultListModel list, String delimiter) {
String result = "";
for (int i = 0; i < list.size(); i++) {
result = list.getElementAt(i).toString() + delimiter;
}
result = result.trim();
return result;
}
public static String LoadFile(String inputfile) throws IOException {
int len;
char[] chr = new char[4096];
final StringBuffer buffer = new StringBuffer();
final FileReader reader = new FileReader(new File(inputfile));
try {
while ((len = reader.read(chr)) > 0) {
buffer.append(chr, 0, len);
}
} finally {
reader.close();
}
return buffer.toString();
}
public static void SaveFile(String outputfile, String outputstring) {
try {
FileWriter f0 = new FileWriter(new File(outputfile));
f0.write(outputstring);
f0.flush();
f0.close();
} catch (IOException ex) {
Logger.getLogger(StringList.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
OutputAs methods are for outputting an entry as int, double, etc... so that you don't have to convert from string on the other side.
SaveFile & LoadFile are to save and load strings to and from files.
StrToList & ListToStr are to place delimiters between each entry.
ex. 1<>2<>3<>4<> if "<>" is the delimiter and 1 2 3 & 4 are the entries.
AddEntry & GetEntry are to add and get strings to and from the DefaultListModel.
RemoveEntry is to delete a string from the DefaultListModel.
You use the DefaultListModel instead of an array here like this:
DefaultListModel list = new DefaultListModel();
//now that you have a list, you can run it through the above class methods.
Please use the below code and let me know
try{
Class.forName("com.mysql.jdbc.Driver").newInstance();
con = DriverManager.getConnection(c, "root", "MyNewPass");
System.out.println("connection done");
PreparedStatement ps=con.prepareStatement(q);
System.out.println(q);
rs=ps.executeQuery();
System.out.println("done2");
while (rs.next()) {
System.out.println(rs.getString(1));
System.out.println(rs.getString(2));
}
response.sendRedirect("myfolder/welcome.jsp"); // wherever you wanna redirect this page.
}
catch (Exception e) {
// TODO: handle exception
System.out.println("Failed");
}
myfolder/welcome.jsp
is the relative path of your jsp
page. So, change it as per your jsp
page path.
UITableView's selectRowAtIndexPath:animated:scrollPosition: should do the trick.
Just pass UITableViewScrollPositionNone
for scrollPosition and the user won't see any movement.
You should also be able to manually run the action:
[theTableView.delegate tableView:theTableView didSelectRowAtIndexPath:indexPath]
after you selectRowAtIndexPath:animated:scrollPosition:
so the highlight happens as well as any associated logic.
I know this is a bit old, but i thought i would contribute. Basing myself on the answer by @Sophy, this is what I did to add a .xxs breakpoint. I have not taken care of visible-inline, table.visible, etc classes.
/*========== Mobile First Method ==========*/
.col-xxs-12, .col-xxs-11, .col-xxs-10, .col-xxs-9, .col-xxs-8, .col-xxs-7, .col-xxs-6, .col-xxs-5, .col-xxs-4, .col-xxs-3, .col-xxs-2, .col-xxs-1 {
position: relative;
min-height: 1px;
padding-left: 15px;
padding-right: 15px;
float: left;
}
.visible-xxs {
display:none !important;
}
/* Custom, iPhone Retina */
@media only screen and (min-width : 320px) and (max-width:479px) {
.visible-xxs {
display: block !important;
}
.visible-xs {
display:none !important;
}
.hidden-xs {
display:block !important;
}
.hidden-xxs {
display:none !important;
}
.col-xxs-12 {
width: 100%;
}
.col-xxs-11 {
width: 91.66666667%;
}
.col-xxs-10 {
width: 83.33333333%;
}
.col-xxs-9 {
width: 75%;
}
.col-xxs-8 {
width: 66.66666667%;
}
.col-xxs-7 {
width: 58.33333333%;
}
.col-xxs-6 {
width: 50%;
}
.col-xxs-5 {
width: 41.66666667%;
}
.col-xxs-4 {
width: 33.33333333%;
}
.col-xxs-3 {
width: 25%;
}
.col-xxs-2 {
width: 16.66666667%;
}
.col-xxs-1 {
width: 8.33333333%;
}
.col-xxs-pull-12 {
right: 100%;
}
.col-xxs-pull-11 {
right: 91.66666667%;
}
.col-xxs-pull-10 {
right: 83.33333333%;
}
.col-xxs-pull-9 {
right: 75%;
}
.col-xxs-pull-8 {
right: 66.66666667%;
}
.col-xxs-pull-7 {
right: 58.33333333%;
}
.col-xxs-pull-6 {
right: 50%;
}
.col-xxs-pull-5 {
right: 41.66666667%;
}
.col-xxs-pull-4 {
right: 33.33333333%;
}
.col-xxs-pull-3 {
right: 25%;
}
.col-xxs-pull-2 {
right: 16.66666667%;
}
.col-xxs-pull-1 {
right: 8.33333333%;
}
.col-xxs-pull-0 {
right: auto;
}
.col-xxs-push-12 {
left: 100%;
}
.col-xxs-push-11 {
left: 91.66666667%;
}
.col-xxs-push-10 {
left: 83.33333333%;
}
.col-xxs-push-9 {
left: 75%;
}
.col-xxs-push-8 {
left: 66.66666667%;
}
.col-xxs-push-7 {
left: 58.33333333%;
}
.col-xxs-push-6 {
left: 50%;
}
.col-xxs-push-5 {
left: 41.66666667%;
}
.col-xxs-push-4 {
left: 33.33333333%;
}
.col-xxs-push-3 {
left: 25%;
}
.col-xxs-push-2 {
left: 16.66666667%;
}
.col-xxs-push-1 {
left: 8.33333333%;
}
.col-xxs-push-0 {
left: auto;
}
.col-xxs-offset-12 {
margin-left: 100%;
}
.col-xxs-offset-11 {
margin-left: 91.66666667%;
}
.col-xxs-offset-10 {
margin-left: 83.33333333%;
}
.col-xxs-offset-9 {
margin-left: 75%;
}
.col-xxs-offset-8 {
margin-left: 66.66666667%;
}
.col-xxs-offset-7 {
margin-left: 58.33333333%;
}
.col-xxs-offset-6 {
margin-left: 50%;
}
.col-xxs-offset-5 {
margin-left: 41.66666667%;
}
.col-xxs-offset-4 {
margin-left: 33.33333333%;
}
.col-xxs-offset-3 {
margin-left: 25%;
}
.col-xxs-offset-2 {
margin-left: 16.66666667%;
}
.col-xxs-offset-1 {
margin-left: 8.33333333%;
}
.col-xxs-offset-0 {
margin-left: 0%;
}
}
/* Extra Small Devices, Phones */
@media only screen and (min-width : 480px) {
.visible-xs {
display:block !important;
}
}
/* Small Devices, Tablets */
@media only screen and (min-width : 768px) {
.visible-xs {
display:none !important;
}
}
/* Medium Devices, Desktops */
@media only screen and (min-width : 992px) {
}
/* Large Devices, Wide Screens */
@media only screen and (min-width : 1200px) {
}
If you have any issues in your controller to map to an unique URL you get this error.
The best way to find the cause of issue is exclude all controllers from project. Then try running the app by enabling one controller or one or more methods in a controller at a time to find the controllers/ controller method(S) which have an issue. Or you could get smart and do a binary search logic to find the disable enable multiple controller/methods to find the faulty ones.
Some of the causes is
Having public methods in controller without HTTP method attributes
Having multiple methods with same Http attributes which could map to same api call if you are not using "[action]" based mapping
If you are using versioning make sure you have the method in all the controller versions (if using inheritance even though you use from base)
The BOOLEAN data type is a PL/SQL data type. Oracle does not provide an equivalent SQL data type (...) you can create a wrapper function which maps a SQL type to the BOOLEAN type.
Check this: http://forums.datadirect.com/ddforums/thread.jspa?threadID=1771&tstart=0&messageID=5284
If you have a table with millions of rows and care about the performance, this could be a better answer:
SELECT * FROM Table1
WHERE (ABS(CAST(
(BINARY_CHECKSUM
(keycol1, NEWID())) as int))
% 100) < 10
TL;DR
mysql_real_escape_string()
will provide no protection whatsoever (and could furthermore munge your data) if:
MySQL's
NO_BACKSLASH_ESCAPES
SQL mode is enabled (which it might be, unless you explicitly select another SQL mode every time you connect); andyour SQL string literals are quoted using double-quote
"
characters.This was filed as bug #72458 and has been fixed in MySQL v5.7.6 (see the section headed "The Saving Grace", below).
In homage to @ircmaxell's excellent answer (really, this is supposed to be flattery and not plagiarism!), I will adopt his format:
Starting off with a demonstration...
mysql_query('SET SQL_MODE="NO_BACKSLASH_ESCAPES"'); // could already be set
$var = mysql_real_escape_string('" OR 1=1 -- ');
mysql_query('SELECT * FROM test WHERE name = "'.$var.'" LIMIT 1');
This will return all records from the test
table. A dissection:
Selecting an SQL Mode
mysql_query('SET SQL_MODE="NO_BACKSLASH_ESCAPES"');
As documented under String Literals:
There are several ways to include quote characters within a string:
A “
'
” inside a string quoted with “'
” may be written as “''
”.A “
"
” inside a string quoted with “"
” may be written as “""
”.Precede the quote character by an escape character (“
\
”).A “
'
” inside a string quoted with “"
” needs no special treatment and need not be doubled or escaped. In the same way, “"
” inside a string quoted with “'
” needs no special treatment.
If the server's SQL mode includes NO_BACKSLASH_ESCAPES
, then the third of these options—which is the usual approach adopted by mysql_real_escape_string()
—is not available: one of the first two options must be used instead. Note that the effect of the fourth bullet is that one must necessarily know the character that will be used to quote the literal in order to avoid munging one's data.
The Payload
" OR 1=1 --
The payload initiates this injection quite literally with the "
character. No particular encoding. No special characters. No weird bytes.
mysql_real_escape_string()
$var = mysql_real_escape_string('" OR 1=1 -- ');
Fortunately, mysql_real_escape_string()
does check the SQL mode and adjust its behaviour accordingly. See libmysql.c
:
ulong STDCALL
mysql_real_escape_string(MYSQL *mysql, char *to,const char *from,
ulong length)
{
if (mysql->server_status & SERVER_STATUS_NO_BACKSLASH_ESCAPES)
return escape_quotes_for_mysql(mysql->charset, to, 0, from, length);
return escape_string_for_mysql(mysql->charset, to, 0, from, length);
}
Thus a different underlying function, escape_quotes_for_mysql()
, is invoked if the NO_BACKSLASH_ESCAPES
SQL mode is in use. As mentioned above, such a function needs to know which character will be used to quote the literal in order to repeat it without causing the other quotation character from being repeated literally.
However, this function arbitrarily assumes that the string will be quoted using the single-quote '
character. See charset.c
:
/*
Escape apostrophes by doubling them up
// [ deletia 839-845 ]
DESCRIPTION
This escapes the contents of a string by doubling up any apostrophes that
it contains. This is used when the NO_BACKSLASH_ESCAPES SQL_MODE is in
effect on the server.
// [ deletia 852-858 ]
*/
size_t escape_quotes_for_mysql(CHARSET_INFO *charset_info,
char *to, size_t to_length,
const char *from, size_t length)
{
// [ deletia 865-892 ]
if (*from == '\'')
{
if (to + 2 > to_end)
{
overflow= TRUE;
break;
}
*to++= '\'';
*to++= '\'';
}
So, it leaves double-quote "
characters untouched (and doubles all single-quote '
characters) irrespective of the actual character that is used to quote the literal! In our case $var
remains exactly the same as the argument that was provided to mysql_real_escape_string()
—it's as though no escaping has taken place at all.
The Query
mysql_query('SELECT * FROM test WHERE name = "'.$var.'" LIMIT 1');
Something of a formality, the rendered query is:
SELECT * FROM test WHERE name = "" OR 1=1 -- " LIMIT 1
As my learned friend put it: congratulations, you just successfully attacked a program using mysql_real_escape_string()
...
mysql_set_charset()
cannot help, as this has nothing to do with character sets; nor can mysqli::real_escape_string()
, since that's just a different wrapper around this same function.
The problem, if not already obvious, is that the call to mysql_real_escape_string()
cannot know with which character the literal will be quoted, as that's left to the developer to decide at a later time. So, in NO_BACKSLASH_ESCAPES
mode, there is literally no way that this function can safely escape every input for use with arbitrary quoting (at least, not without doubling characters that do not require doubling and thus munging your data).
It gets worse. NO_BACKSLASH_ESCAPES
may not be all that uncommon in the wild owing to the necessity of its use for compatibility with standard SQL (e.g. see section 5.3 of the SQL-92 specification, namely the <quote symbol> ::= <quote><quote>
grammar production and lack of any special meaning given to backslash). Furthermore, its use was explicitly recommended as a workaround to the (long since fixed) bug that ircmaxell's post describes. Who knows, some DBAs might even configure it to be on by default as means of discouraging use of incorrect escaping methods like addslashes()
.
Also, the SQL mode of a new connection is set by the server according to its configuration (which a SUPER
user can change at any time); thus, to be certain of the server's behaviour, you must always explicitly specify your desired mode after connecting.
So long as you always explicitly set the SQL mode not to include NO_BACKSLASH_ESCAPES
, or quote MySQL string literals using the single-quote character, this bug cannot rear its ugly head: respectively escape_quotes_for_mysql()
will not be used, or its assumption about which quote characters require repeating will be correct.
For this reason, I recommend that anyone using NO_BACKSLASH_ESCAPES
also enables ANSI_QUOTES
mode, as it will force habitual use of single-quoted string literals. Note that this does not prevent SQL injection in the event that double-quoted literals happen to be used—it merely reduces the likelihood of that happening (because normal, non-malicious queries would fail).
In PDO, both its equivalent function PDO::quote()
and its prepared statement emulator call upon mysql_handle_quoter()
—which does exactly this: it ensures that the escaped literal is quoted in single-quotes, so you can be certain that PDO is always immune from this bug.
As of MySQL v5.7.6, this bug has been fixed. See change log:
Functionality Added or Changed
Incompatible Change: A new C API function,
mysql_real_escape_string_quote()
, has been implemented as a replacement formysql_real_escape_string()
because the latter function can fail to properly encode characters when theNO_BACKSLASH_ESCAPES
SQL mode is enabled. In this case,mysql_real_escape_string()
cannot escape quote characters except by doubling them, and to do this properly, it must know more information about the quoting context than is available.mysql_real_escape_string_quote()
takes an extra argument for specifying the quoting context. For usage details, see mysql_real_escape_string_quote().Note
Applications should be modified to use
mysql_real_escape_string_quote()
, instead ofmysql_real_escape_string()
, which now fails and produces anCR_INSECURE_API_ERR
error ifNO_BACKSLASH_ESCAPES
is enabled.References: See also Bug #19211994.
Taken together with the bug explained by ircmaxell, the following examples are entirely safe (assuming that one is either using MySQL later than 4.1.20, 5.0.22, 5.1.11; or that one is not using a GBK/Big5 connection encoding):
mysql_set_charset($charset);
mysql_query("SET SQL_MODE=''");
$var = mysql_real_escape_string('" OR 1=1 /*');
mysql_query('SELECT * FROM test WHERE name = "'.$var.'" LIMIT 1');
...because we've explicitly selected an SQL mode that doesn't include NO_BACKSLASH_ESCAPES
.
mysql_set_charset($charset);
$var = mysql_real_escape_string("' OR 1=1 /*");
mysql_query("SELECT * FROM test WHERE name = '$var' LIMIT 1");
...because we're quoting our string literal with single-quotes.
$stmt = $pdo->prepare('SELECT * FROM test WHERE name = ? LIMIT 1');
$stmt->execute(["' OR 1=1 /*"]);
...because PDO prepared statements are immune from this vulnerability (and ircmaxell's too, provided either that you're using PHP=5.3.6 and the character set has been correctly set in the DSN; or that prepared statement emulation has been disabled).
$var = $pdo->quote("' OR 1=1 /*");
$stmt = $pdo->query("SELECT * FROM test WHERE name = $var LIMIT 1");
...because PDO's quote()
function not only escapes the literal, but also quotes it (in single-quote '
characters); note that to avoid ircmaxell's bug in this case, you must be using PHP=5.3.6 and have correctly set the character set in the DSN.
$stmt = $mysqli->prepare('SELECT * FROM test WHERE name = ? LIMIT 1');
$param = "' OR 1=1 /*";
$stmt->bind_param('s', $param);
$stmt->execute();
...because MySQLi prepared statements are safe.
Thus, if you:
OR
OR
in addition to employing one of the solutions in ircmaxell's summary, use at least one of:
NO_BACKSLASH_ESCAPES
...then you should be completely safe (vulnerabilities outside the scope of string escaping aside).
you could use getAttribute:
var p = document.getElementById("p");
var alignP = p.getAttribute("align");
https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute
In order to get the value of the selected item you can do the following:
this.options[this.selectedIndex].text
Here the different options
of the select are accessed, and the SelectedIndex
is used to choose the selected one, then its text
is being accessed.
Read more about the select DOM here.
You can use the function outer()
to generate it.
Have a look at the demo for the function persp()
, which is a base graphics function to draw perspective plots for surfaces.
Here is their first example:
x <- seq(-10, 10, length.out = 50)
y <- x
rotsinc <- function(x,y) {
sinc <- function(x) { y <- sin(x)/x ; y[is.na(y)] <- 1; y }
10 * sinc( sqrt(x^2+y^2) )
}
z <- outer(x, y, rotsinc)
persp(x, y, z)
The same applies to surface3d()
:
require(rgl)
surface3d(x, y, z)
It should be like:
public static void calculateTime(long seconds) {
int day = (int)TimeUnit.SECONDS.toDays(seconds);
long hours = TimeUnit.SECONDS.toHours(seconds) - (day *24);
long minute = TimeUnit.SECONDS.toMinutes(seconds) - (TimeUnit.SECONDS.toHours(seconds)* 60);
long second = TimeUnit.SECONDS.toSeconds(seconds) - (TimeUnit.SECONDS.toMinutes(seconds) *60);
System.out.println("Day " + day + " Hour " + hours + " Minute " + minute + " Seconds " + second);
}
Explanation:
TimeUnit.SECONDS.toHours(seconds) will give you direct conversion from seconds to hours with out consideration for days. Minus the hours for days you already got i.e, day*24. You now got remaining hours. Same for minute and second. You need to minus the already got hour and minutes respectively.
The overall dimensions of a range are in its Width
and Height
properties.
Dim r As Range
Set r = ActiveSheet.Range("A4:H12")
Debug.Print r.Width
Debug.Print r.Height
I ran into a similar issue. To check if SELinux is the problem, one can check its running status with
sestatus
and temporarily disable it with
setenforce 0
This could at least help to narrow down the problem.
May not be the exact one-liner you were hoping for but you could have a look at http://github.com/nodejitsu/node-http-proxy as that may shed some light on how you can use your app with http.Client.
You can use the annotate command to place text annotations at any x and y values you want. To place them exactly at the data points you could do this
import numpy
from matplotlib import pyplot
x = numpy.arange(10)
y = numpy.array([5,3,4,2,7,5,4,6,3,2])
fig = pyplot.figure()
ax = fig.add_subplot(111)
ax.set_ylim(0,10)
pyplot.plot(x,y)
for i,j in zip(x,y):
ax.annotate(str(j),xy=(i,j))
pyplot.show()
If you want the annotations offset a little, you could change the annotate
line to something like
ax.annotate(str(j),xy=(i,j+0.5))
The error means, that Angular doesn't know what to do when you put a formControl
on a div
.
To fix this, you have two options.
formControlName
on an element, that is supported by Angular out of the box. Those are: input
, textarea
and select
.ControlValueAccessor
interface. By doing so, you're telling Angular "how to access the value of your control" (hence the name). Or in simple terms: What to do, when you put a formControlName
on an element, that doesn't naturally have a value associated with it.Now, implementing the ControlValueAccessor
interface can be a bit daunting at first. Especially because there isn't much good documentation of this out there and you need to add a lot of boilerplate to your code. So let me try to break this down in some simple-to-follow steps.
In order to implement the ControlValueAccessor
, you need to create a new component (or directive). Move the code related to your form control there. Like this it will also be easily reusable. Having a control already inside a component might be the reason in the first place, why you need to implement the ControlValueAccessor
interface, because otherwise you will not be able to use your custom component together with Angular forms.
Implementing the ControlValueAccessor
interface is quite verbose, here's the boilerplate that comes with it:
import {Component, OnInit, forwardRef} from '@angular/core';
import {ControlValueAccessor, FormControl, NG_VALUE_ACCESSOR} from '@angular/forms';
@Component({
selector: 'app-custom-input',
templateUrl: './custom-input.component.html',
styleUrls: ['./custom-input.component.scss'],
// a) copy paste this providers property (adjust the component name in the forward ref)
providers: [
{
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => CustomInputComponent),
multi: true
}
]
})
// b) Add "implements ControlValueAccessor"
export class CustomInputComponent implements ControlValueAccessor {
// c) copy paste this code
onChange: any = () => {}
onTouch: any = () => {}
registerOnChange(fn: any): void {
this.onChange = fn;
}
registerOnTouched(fn: any): void {
this.onTouch = fn;
}
// d) copy paste this code
writeValue(input: string) {
// TODO
}
So what are the individual parts doing?
ControlValueAccessor
interfaceControlValueAccessor
interfaceonChange
and onTouch
with it's own implementation during runtime, such that you can then call those functions. So this point is important to understand: You don't need to implement onChange and onTouch yourself (other than the initial empty implementation). The only thing your doing with (c) is to let Angular attach it's own functions to your class. Why? So you can then call the onChange
and onTouch
methods provided by Angular at the appropriate time. We'll see how this works down below.writeValue
method works in the next section, when we implement it. I've put it here, so all required properties on ControlValueAccessor
are implemented and your code still compiles.What writeValue
does, is to do something inside your custom component, when the form control is changed on the outside. So for example, if you have named your custom form control component app-custom-input
and you'd be using it in the parent component like this:
<form [formGroup]="form">
<app-custom-input formControlName="myFormControl"></app-custom-input>
</form>
then writeValue
gets triggered whenever the parent component somehow changes the value of myFormControl
. This could be for example during the initialization of the form (this.form = this.formBuilder.group({myFormControl: ""});
) or on a form reset this.form.reset();
.
What you'll typically want to do if the value of the form control changes on the outside, is to write it to a local variable which represents the form control value. For example, if your CustomInputComponent
revolves around a text based form control, it could look like this:
writeValue(input: string) {
this.input = input;
}
and in the html of CustomInputComponent
:
<input type="text"
[ngModel]="input">
You could also write it directly to the input element as described in the Angular docs.
Now you have handled what happens inside of your component when something changes outside. Now let's look at the other direction. How do you inform the outside world when something changes inside of your component?
The next step is to inform the parent component about changes inside of your CustomInputComponent
. This is where the onChange
and onTouch
functions from (c) from above come into play. By calling those functions you can inform the outside about changes inside your component. In order to propagate changes of the value to the outside, you need to call onChange with the new value as the argument. For example, if the user types something in the input
field in your custom component, you call onChange
with the updated value:
<input type="text"
[ngModel]="input"
(ngModelChange)="onChange($event)">
If you check the implementation (c) from above again, you'll see what's happening: Angular bound it's own implementation to the onChange
class property. That implementation expects one argument, which is the updated control value. What you're doing now is you're calling that method and thus letting Angular know about the change. Angular will now go ahead and change the form value on the outside. This is the key part in all this. You told Angular when it should update the form control and with what value by calling onChange
. You've given it the means to "access the control value".
By the way: The name onChange
is chosen by me. You could choose anything here, for example propagateChange
or similar. However you name it though, it will be the same function that takes one argument, that is provided by Angular and that is bound to your class by the registerOnChange
method during runtime.
Since form controls can be "touched", you should also give Angular the means to understand when your custom form control is touched. You can do it, you guessed it, by calling the onTouch
function. So for our example here, if you want to stay compliant with how Angular is doing it for the out-of-the-box form controls, you should call onTouch
when the input field is blurred:
<input type="text"
[(ngModel)]="input"
(ngModelChange)="onChange($event)"
(blur)="onTouch()">
Again, onTouch
is a name chosen by me, but what it's actual function is provided by Angular and it takes zero arguments. Which makes sense, since you're just letting Angular know, that the form control has been touched.
So how does that look when it comes all together? It should look like this:
// custom-input.component.ts
import {Component, OnInit, forwardRef} from '@angular/core';
import {ControlValueAccessor, FormControl, NG_VALUE_ACCESSOR} from '@angular/forms';
@Component({
selector: 'app-custom-input',
templateUrl: './custom-input.component.html',
styleUrls: ['./custom-input.component.scss'],
// Step 1: copy paste this providers property
providers: [
{
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => CustomInputComponent),
multi: true
}
]
})
// Step 2: Add "implements ControlValueAccessor"
export class CustomInputComponent implements ControlValueAccessor {
// Step 3: Copy paste this stuff here
onChange: any = () => {}
onTouch: any = () => {}
registerOnChange(fn: any): void {
this.onChange = fn;
}
registerOnTouched(fn: any): void {
this.onTouch = fn;
}
// Step 4: Define what should happen in this component, if something changes outside
input: string;
writeValue(input: string) {
this.input = input;
}
// Step 5: Handle what should happen on the outside, if something changes on the inside
// in this simple case, we've handled all of that in the .html
// a) we've bound to the local variable with ngModel
// b) we emit to the ouside by calling onChange on ngModelChange
}
// custom-input.component.html
<input type="text"
[(ngModel)]="input"
(ngModelChange)="onChange($event)"
(blur)="onTouch()">
// parent.component.html
<app-custom-input [formControl]="inputTwo"></app-custom-input>
// OR
<form [formGroup]="form" >
<app-custom-input formControlName="myFormControl"></app-custom-input>
</form>
Note that Control Value Accessors are NOT the right tool for nested form groups. For nested form groups you can simply use an @Input() subform
instead. Control Value Accessors are meant to wrap controls
, not groups
! See this example how to use an input for a nested form: https://stackblitz.com/edit/angular-nested-forms-input-2
Depends on implementation but I would use
(?i)G[a-b].
VARIATIONS:
(?i) case-insensitive mode ON
(?-i) case-insensitive mode OFF
Modern regex flavors allow you to apply modifiers to only part of the regular expression. If you insert the modifier (?im) in the middle of the regex then the modifier only applies to the part of the regex to the right of the modifier. With these flavors, you can turn off modes by preceding them with a minus sign (?-i).
Description is from the page: https://www.regular-expressions.info/modifiers.html
If you're using Eclipse Collections (formerly GS Collections), you can use the makeString()
method.
List<String> list = Arrays.asList("Bill", "Bob", "Steve");
String string = ListAdapter.adapt(list).makeString(" and ");
Assert.assertEquals("Bill and Bob and Steve", string);
If you can convert your List
to an Eclipse Collections type, then you can get rid of the adapter.
MutableList<String> list = Lists.mutable.with("Bill", "Bob", "Steve");
String string = list.makeString(" and ");
If you just want a comma separated string, you can use the version of makeString()
that takes no parameters.
Assert.assertEquals(
"Bill, Bob, Steve",
Lists.mutable.with("Bill", "Bob", "Steve").makeString());
Note: I am a committer for Eclipse Collections.
OK, but you don`t want to open the whole realtime database! You need something like this.
{
/* Visit https://firebase.google.com/docs/database/security to learn more about security rules. */
"rules": {
".read": "auth.uid !=null",
".write": "auth.uid !=null"
}
}
or
{
"rules": {
"users": {
"$uid": {
".write": "$uid === auth.uid"
}
}
}
}
This is extremely simple! Rather than importing odd modules for python or trying long commands you can take advantage of windows OS commands.
In windows, commands exist to change the command prompt text color. You can use this in python by starting with a: import os
Next you need to have a line changing the text color, place it were you want in your code.
os.system('color 4')
You can figure out the other colors by starting cmd.exe and typing color help.
The good part? Thats all their is to it, to simple lines of code. -Day
In that table in SQL Server, specify the default value of that column to be CURRENT_TIMESTAMP
.
The datatype of that column may be datetime
or datetime2
.
e.g.
Create Table Student
(
Name varchar(50),
DateOfAddmission datetime default CURRENT_TIMESTAMP
);
You can receive returning results like that:
AsyncTask
class
@Override
protected Boolean doInBackground(Void... params) {
if (host.isEmpty() || dbName.isEmpty() || user.isEmpty() || pass.isEmpty() || port.isEmpty()) {
try {
throw new SQLException("Database credentials missing");
} catch (SQLException e) {
e.printStackTrace();
}
}
try {
Class.forName("org.postgresql.Driver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
this.conn = DriverManager.getConnection(this.host + ':' + this.port + '/' + this.dbName, this.user, this.pass);
} catch (SQLException e) {
e.printStackTrace();
}
return true;
}
receiving class:
_store.execute();
boolean result =_store.get();
Hoping it will help.
In my case it was just caused because there was not enough space on the disk for cvtres.exe
to write the files it had to.
The error was preceded by this line
CVTRES : fatal error CVT1106: cannot write to file
I had this happen repeatedly after adding images to a project in Eclipse and making them part of the build path. The solution was to right-click on the class containing the main
method, and then choose Run As -> Java Application. It seems that when you add a file to the build path, Eclipse automatically assumes that file is where the main
method is. By going through the Run As menu instead of just clicking the green Run As button, it allows you to specify the correct entry-point.
How about
sub foo()
dim r As Range, rows As Long, i As Long
Set r = ActiveSheet.Range("A1:Z50")
rows = r.rows.Count
For i = rows To 1 Step (-1)
If WorksheetFunction.CountA(r.rows(i)) = 0 Then r.rows(i).Delete
Next
End Sub
Try this
Option Explicit
Sub Sample()
Dim i As Long
Dim DelRange As Range
On Error GoTo Whoa
Application.ScreenUpdating = False
For i = 1 To 50
If Application.WorksheetFunction.CountA(Range("A" & i & ":" & "Z" & i)) = 0 Then
If DelRange Is Nothing Then
Set DelRange = Range("A" & i & ":" & "Z" & i)
Else
Set DelRange = Union(DelRange, Range("A" & i & ":" & "Z" & i))
End If
End If
Next i
If Not DelRange Is Nothing Then DelRange.Delete shift:=xlUp
LetsContinue:
Application.ScreenUpdating = True
Exit Sub
Whoa:
MsgBox Err.Description
Resume LetsContinue
End Sub
IF you want to delete the entire row then use this code
Option Explicit
Sub Sample()
Dim i As Long
Dim DelRange As Range
On Error GoTo Whoa
Application.ScreenUpdating = False
For i = 1 To 50
If Application.WorksheetFunction.CountA(Range("A" & i & ":" & "Z" & i)) = 0 Then
If DelRange Is Nothing Then
Set DelRange = Rows(i)
Else
Set DelRange = Union(DelRange, Rows(i))
End If
End If
Next i
If Not DelRange Is Nothing Then DelRange.Delete shift:=xlUp
LetsContinue:
Application.ScreenUpdating = True
Exit Sub
Whoa:
MsgBox Err.Description
Resume LetsContinue
End Sub
The best solution I have found is to override onCreateDialog()
instead of onCreateView()
. setContentView() will set the correct window dimensions before inflating. It removes the need to store/set a dimension, background color, style, etc in resource files and setting them manually.
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Dialog dialog = new Dialog(getActivity());
dialog.setContentView(R.layout.fragment_dialog);
Button button = (Button) dialog.findViewById(R.id.dialog_button);
// ...
return dialog;
}
On Unix systems, for several projects, I added these lines into the CMakeLists.txt and it was compiling successfully because base (/usr/include) and local includes (/usr/local/include) go into separated directories:
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -I/usr/local/include -L/usr/local/lib")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -I/usr/local/include")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -L/usr/local/lib")
It appends the correct directory, including paths for the C and C++ compiler flags and the correct directory path for the linker flags.
Note: C++ compiler (c++) doesn't support -L, so we have to use CMAKE_EXE_LINKER_FLAGS
Depending on how well the makefile/configure script/autofoo magic of the program in question is the following might solve your problem:
make uninstall
The problem is that you should execute this on the source tree of the version you've got installed and with exactly the same configuration that you used for installing.
try checking with any Url like add
in path and start activity if its works than you are adding wrong path
Box-Muller implementation:
#include <cstdlib>
#include <cmath>
#include <ctime>
#include <iostream>
using namespace std;
// return a uniformly distributed random number
double RandomGenerator()
{
return ( (double)(rand()) + 1. )/( (double)(RAND_MAX) + 1. );
}
// return a normally distributed random number
double normalRandom()
{
double y1=RandomGenerator();
double y2=RandomGenerator();
return cos(2*3.14*y2)*sqrt(-2.*log(y1));
}
int main(){
double sigma = 82.;
double Mi = 40.;
for(int i=0;i<100;i++){
double x = normalRandom()*sigma+Mi;
cout << " x = " << x << endl;
}
return 0;
}
The problem is that your ui
property uses a forward declaration of class Ui::MainWindowClass
, hence the "incomplete type" error.
Including the header file in which this class is declared will fix the problem.
EDIT
Based on your comment, the following code:
namespace Ui
{
class MainWindowClass;
}
does NOT declare a class. It's a forward declaration, meaning that the class will exist at some point, at link time.
Basically, it just tells the compiler that the type will exist, and that it shouldn't warn about it.
But the class has to be defined somewhere.
Note this can only work if you have a pointer to such a type.
You can't have a statically allocated instance of an incomplete type.
So either you actually want an incomplete type, and then you should declare your ui
member as a pointer:
namespace Ui
{
// Forward declaration - Class will have to exist at link time
class MainWindowClass;
}
class MainWindow : public QMainWindow
{
private:
// Member needs to be a pointer, as it's an incomplete type
Ui::MainWindowClass * ui;
};
Or you want a statically allocated instance of Ui::MainWindowClass
, and then it needs to be declared.
You can do it in another header file (usually, there's one header file per class).
But simply changing the code to:
namespace Ui
{
// Real class declaration - May/Should be in a specific header file
class MainWindowClass
{};
}
class MainWindow : public QMainWindow
{
private:
// Member can be statically allocated, as the type is complete
Ui::MainWindowClass ui;
};
will also work.
Note the difference between the two declarations. First uses a forward declaration, while the second one actually declares the class (here with no properties nor methods).
Adding this into my styles.xml worked for me
<item name="android:textColorPrimary">?android:attr/textColorPrimaryInverse</item>
It depends on which folder one is telling "Use as Source Folder" to. In the structure on the picture if one says it to the folder "target" or "generated", he gets the "nested" error. But on "cxf" folder, which is the last, mentioned in the pom.xml's 'plugin' section and where from the package structure begins (as shown on .wsdl file), i.e. - the right folder to do it 'source' one, then there is no error
There is a JDK socket tutorial here, which covers both the server and client end. That looks exactly like what you want.
(from that tutorial) This sets up to read from an echo server:
echoSocket = new Socket("taranis", 7);
out = new PrintWriter(echoSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(
echoSocket.getInputStream()));
taking a stream of bytes and converts to strings via the reader and using a default encoding (not advisable, normally).
Error handling and closing sockets/streams omitted from the above, but check the tutorial.
I know this is old, but I have to add this in here..
And while this is not a full answer, it is an 'IN ADDITION TO'
The address bar will not disappear if you're NOT using https.
ALSO
If you are using https and the address bar still won't hide, you might have some https errors in your webpage (such as certain images being served from a non-https location.)
Hope this helps..
Here is how to set variables in the package from code -
using Microsoft.SqlServer.Dts.Runtime;
private void Execute_Package()
{
string pkgLocation = @"c:\test.dtsx";
Package pkg;
Application app;
DTSExecResult pkgResults;
Variables vars;
app = new Application();
pkg = app.LoadPackage(pkgLocation, null);
vars = pkg.Variables;
vars["A_Variable"].Value = "Some value";
pkgResults = pkg.Execute(null, vars, null, null, null);
if (pkgResults == DTSExecResult.Success)
Console.WriteLine("Package ran successfully");
else
Console.WriteLine("Package failed");
}
The trim() method removes whitespace from both sides of a string.
You can use a Javascript replace method to remove white space like
"hello world".replace(/\s/g, "");
var out = "hello world".replace(/\s/g, "");_x000D_
console.log(out);
_x000D_
try
pip3 install --user --upgrade pandas
This got it working for me:
curl https://raw.githubusercontent.com/transcode-open/apt-cyg/master/apt-cyg > \
apt-cyg && install apt-cyg /bin
I use this bit of code to import sql statements created by mysqldump:
public static void importSQL(Connection conn, InputStream in) throws SQLException
{
Scanner s = new Scanner(in);
s.useDelimiter("(;(\r)?\n)|(--\n)");
Statement st = null;
try
{
st = conn.createStatement();
while (s.hasNext())
{
String line = s.next();
if (line.startsWith("/*!") && line.endsWith("*/"))
{
int i = line.indexOf(' ');
line = line.substring(i + 1, line.length() - " */".length());
}
if (line.trim().length() > 0)
{
st.execute(line);
}
}
}
finally
{
if (st != null) st.close();
}
}
I think you can add the location of the file ssh-keygen.exe in the PATH environment variable. Follow the steps: Go to My Computer->Right click->Properties->Advanced System Settings->Click Environmental Variables. Now click PATH and then click EDIT. In the variable value field, go to the end and append ';C:\path\to\msysgit1.7.11\bin\ssh-keygen.exe' (without quotes)
Here is a generalized simple command argument interface you can paste to the top of all your scripts.
#!/bin/bash
declare -A flags
declare -A booleans
args=()
while [ "$1" ];
do
arg=$1
if [ "${1:0:1}" == "-" ]
then
shift
rev=$(echo "$arg" | rev)
if [ -z "$1" ] || [ "${1:0:1}" == "-" ] || [ "${rev:0:1}" == ":" ]
then
bool=$(echo ${arg:1} | sed s/://g)
booleans[$bool]=true
echo \"$bool\" is boolean
else
value=$1
flags[${arg:1}]=$value
shift
echo \"$arg\" is flag with value \"$value\"
fi
else
args+=("$arg")
shift
echo \"$arg\" is an arg
fi
done
echo -e "\n"
echo booleans: ${booleans[@]}
echo flags: ${flags[@]}
echo args: ${args[@]}
echo -e "\nBoolean types:\n\tPrecedes Flag(pf): ${booleans[pf]}\n\tFinal Arg(f): ${booleans[f]}\n\tColon Terminated(Ct): ${booleans[Ct]}\n\tNot Mentioned(nm): ${boolean[nm]}"
echo -e "\nFlag: myFlag => ${flags["myFlag"]}"
echo -e "\nArgs: one: ${args[0]}, two: ${args[1]}, three: ${args[2]}"
By running the command:
bashScript.sh firstArg -pf -myFlag "my flag value" secondArg -Ct: thirdArg -f
The output will be this:
"firstArg" is an arg
"pf" is boolean
"-myFlag" is flag with value "my flag value"
"secondArg" is an arg
"Ct" is boolean
"thirdArg" is an arg
"f" is boolean
booleans: true true true
flags: my flag value
args: firstArg secondArg thirdArg
Boolean types:
Precedes Flag(pf): true
Final Arg(f): true
Colon Terminated(Ct): true
Not Mentioned(nm):
Flag: myFlag => my flag value
Args: one => firstArg, two => secondArg, three => thirdArg
Basically, the arguments are divided up into flags booleans and generic arguments. By doing it this way a user can put the flags and booleans anywhere as long as he/she keeps the generic arguments (if there are any) in the specified order.
Allowing me and now you to never deal with bash argument parsing again!
You can view an updated script here
This has been enormously useful over the last year. It can now simulate scope by prefixing the variables with a scope parameter.
Just call the script like
replace() (
source $FUTIL_REL_DIR/commandParser.sh -scope ${FUNCNAME[0]} "$@"
echo ${replaceFlags[f]}
echo ${replaceBooleans[b]}
)
Doesn't look like I implemented argument scope, not sure why I guess I haven't needed it yet.
You could define a mapping of air pressure to servo angle, for example:
def calc_angle(pressure, min_p=1000, max_p=1200): return 360 * ((pressure - min_p) / float(max_p - min_p)) angle = calc_angle(pressure)
This will linearly convert pressure
values between min_p
and max_p
to angles between 0 and 360 (you could include min_a
and max_a
to constrain the angle, too).
To pick a data structure, I wouldn't use a list but you could look up values in a dictionary:
d = {1000:0, 1001: 1.8, ...} angle = d[pressure]
but this would be rather time-consuming to type out!
We can also write jasmine's implementation of returning promise directly by spy.
spyOn(myOtherService, "makeRemoteCallReturningPromise").andReturn($q.when({}));
For Jasmine 2:
spyOn(myOtherService, "makeRemoteCallReturningPromise").and.returnValue($q.when({}));
(copied from comments, thanks to ccnokes)
In line with @Qwertie's suggestion, but going further on the lazy side, you could just pretend that each byte is a ISO-8859-1 character. For the uninitiated, ISO-8859-1 is a single-byte encoding that matches the first 256 code points of Unicode.
So @Ash's answer is actually redeemable with a charset:
byte[] args2 = getByteArry();
String byteStr = new String(args2, Charset.forName("ISO-8859-1"));
This encoding has the same readability as BAIS, with the advantage that it is processed faster than either BAIS or base64 as less branching is required. It might look like the JSON parser is doing a bit more, but it's fine because dealing with non-ASCII by escaping or by UTF-8 is part of a JSON parser's job anyways. It could map better to some formats like MessagePack with a profile.
Space-wise however, it is usually a loss, as nobody would be using UTF-16 for JSON. With UTF-8 each non-ASCII byte would occupy 2 bytes, while BAIS uses (2+4n + r?(r+1):0) bytes for every run of 3n+r such bytes (r is the remainder).
Here is my sample, is based on Django + Dropzone. View has select(required) and submit.
<form action="/share/upload/" class="dropzone" id="uploadDropzone">
{% csrf_token %}
<select id="warehouse" required>
<option value="">Select a warehouse</option>
{% for warehouse in warehouses %}
<option value={{forloop.counter0}}>{{warehouse.warehousename}}</option>
{% endfor %}
</select>
<button id="submit-upload btn" type="submit">upload</button>
</form>
<script src="{% static '/js/libs/dropzone/dropzone.js' %}"></script>
<script src="https://code.jquery.com/jquery-3.1.0.min.js"></script>
<script>
var filename = "";
Dropzone.options.uploadDropzone = {
paramName: "file", // The name that will be used to transfer the file,
maxFilesize: 250, // MB
autoProcessQueue: false,
accept: function(file, done) {
console.log(file.name);
filename = file.name;
done(); // !Very important
},
init: function() {
var myDropzone = this,
submitButton = document.querySelector("[type=submit]");
submitButton.addEventListener('click', function(e) {
var isValid = document.querySelector('#warehouse').reportValidity();
e.preventDefault();
e.stopPropagation();
if (isValid)
myDropzone.processQueue();
});
this.on('sendingmultiple', function(data, xhr, formData) {
formData.append("warehouse", jQuery("#warehouse option:selected").val());
});
}
};
</script>
I think you need to use one of those methods in order to be able to intercept the event before it gets sent to the appropriate components:
Activity.dispatchTouchEvent(MotionEvent)
- This allows your Activity to intercept all touch events before they are dispatched to the window.
ViewGroup.onInterceptTouchEvent(MotionEvent)
- This allows a ViewGroup to watch events as they are dispatched to child Views.
ViewParent.requestDisallowInterceptTouchEvent(boolean)
- Call this upon a parent View to indicate that it should not intercept touch events with onInterceptTouchEvent(MotionEvent).
More information here.
Hope that helps.
use this syntax: alter table table_name modify column col_name varchar (10000);
In 2020
check before use
You can use computedStyleMap()
The answer is valid but sometimes you need to check what unit it returns, you can get that without any slice()
or substring()
string.
var element = document.querySelector('.js-header-rep');
element.computedStyleMap().get('padding-left');
var element = document.querySelector('.jsCSS');_x000D_
var con = element.computedStyleMap().get('padding-left');_x000D_
console.log(con);
_x000D_
.jsCSS {_x000D_
width: 10rem;_x000D_
height: 10rem;_x000D_
background-color: skyblue;_x000D_
padding-left: 10px;_x000D_
}
_x000D_
<div class="jsCSS"></div>
_x000D_
I use iFrame to insert the content from another page and CSS mentioned above is NOT working as expected. I have to use the parameter scrolling="no" even if I use HTML 5 Doctype
Why is this blocked by Java?
You'd have to ask the Java designers. There might be some subtle grammatical reason for the restriction. Note that some of the array creation / initialization constructs were not in Java 1.0, and (IIRC) were added in Java 1.1.
But "why" is immaterial ... the restriction is there, and you have to live with it.
I know how to work around it, but from time to time it would be simpler.
You can write this:
AClass[] array;
...
array = new AClass[]{object1, object2};
So ... more digging, with the result. It seems that although I ran one process normal and one "As Administrator", I had UAC off. Turning UAC to medium allowed me to see different results. Basically, it all boils down to integrity levels, which are 5.
Browsers, for example, run at Low Level (1), while services (System user) run at System Level (4). Everything is very well explained in Windows Integrity Mechanism Design . When UAC is enabled, processes are created with Medium level (SID S-1-16-8192 AKA 0x2000 is added) while when "Run as Administrator", the process is created with High Level (SID S-1-16-12288 aka 0x3000).
So the correct ACCESS_TOKEN for a normal user (Medium Integrity level) is:
0:000:x86> !token
Thread is not impersonating. Using process token...
TS Session ID: 0x1
User: S-1-5-21-1542574918-171588570-488469355-1000
Groups:
00 S-1-5-21-1542574918-171588570-488469355-513
Attributes - Mandatory Default Enabled
01 S-1-1-0
Attributes - Mandatory Default Enabled
02 S-1-5-32-544
Attributes - DenyOnly
03 S-1-5-32-545
Attributes - Mandatory Default Enabled
04 S-1-5-4
Attributes - Mandatory Default Enabled
05 S-1-2-1
Attributes - Mandatory Default Enabled
06 S-1-5-11
Attributes - Mandatory Default Enabled
07 S-1-5-15
Attributes - Mandatory Default Enabled
08 S-1-5-5-0-1908477
Attributes - Mandatory Default Enabled LogonId
09 S-1-2-0
Attributes - Mandatory Default Enabled
10 S-1-5-64-10
Attributes - Mandatory Default Enabled
11 S-1-16-8192
Attributes - GroupIntegrity GroupIntegrityEnabled
Primary Group: LocadDumpSid failed to dump Sid at addr 000000000266b458, 0xC0000078; try own SID dump.
s-1-0x515000000
Privs:
00 0x000000013 SeShutdownPrivilege Attributes -
01 0x000000017 SeChangeNotifyPrivilege Attributes - Enabled Default
02 0x000000019 SeUndockPrivilege Attributes -
03 0x000000021 SeIncreaseWorkingSetPrivilege Attributes -
04 0x000000022 SeTimeZonePrivilege Attributes -
Auth ID: 0:1d1f65
Impersonation Level: Anonymous
TokenType: Primary
Is restricted token: no.
Now, the differences are as follows:
S-1-5-32-544
Attributes - Mandatory Default Enabled Owner
for "As Admin", while
S-1-5-32-544
Attributes - DenyOnly
for non-admin.
Note that S-1-5-32-544 is BUILTIN\Administrators. Also, there are fewer privileges, and the most important thing to notice:
admin:
S-1-16-12288
Attributes - GroupIntegrity GroupIntegrityEnabled
while for non-admin:
S-1-16-8192
Attributes - GroupIntegrity GroupIntegrityEnabled
I hope this helps.
Further reading: http://www.blackfishsoftware.com/blog/don/creating_processes_sessions_integrity_levels