How about something like
import numpy as np
import matplotlib.pyplot as plt
V = np.array([[1,1], [-2,2], [4,-7]])
origin = np.array([[0, 0, 0],[0, 0, 0]]) # origin point
plt.quiver(*origin, V[:,0], V[:,1], color=['r','b','g'], scale=21)
plt.show()
Then to add up any two vectors and plot them to the same figure, do so before you call plt.show()
. Something like:
plt.quiver(*origin, V[:,0], V[:,1], color=['r','b','g'], scale=21)
v12 = V[0] + V[1] # adding up the 1st (red) and 2nd (blue) vectors
plt.quiver(*origin, v12[0], v12[1])
plt.show()
NOTE: in Python2 use origin[0], origin[1]
instead of *origin
version for data.table based on code from dmanuge :
convNumValues<-function(ds){
ds<-data.table(ds)
dsnum<-data.table(data.matrix(ds))
num_cols <- sapply(dsnum,function(x){mean(as.numeric(is.na(x)))<0.5})
nds <- data.table( dsnum[, .SD, .SDcols=attributes(num_cols)$names[which(num_cols)]]
,ds[, .SD, .SDcols=attributes(num_cols)$names[which(!num_cols)]] )
return(nds)
}
This works as well:
select * from mde_product where cfn = 'A3D"&"R01'
you define &
as literal by enclosing is with double qoutes "&"
in the string.
There are two ways to approach this problem: numerically and symbolically.
To solve it numerically, you have to first encode it as a "runnable" function - stick a value in, get a value out. For example,
def my_function(x):
return 2*x + 6
It is quite possible to parse a string to automatically create such a function; say you parse 2x + 6
into a list, [6, 2]
(where the list index corresponds to the power of x - so 6*x^0 + 2*x^1). Then:
def makePoly(arr):
def fn(x):
return sum(c*x**p for p,c in enumerate(arr))
return fn
my_func = makePoly([6, 2])
my_func(3) # returns 12
You then need another function which repeatedly plugs an x-value into your function, looks at the difference between the result and what it wants to find, and tweaks its x-value to (hopefully) minimize the difference.
def dx(fn, x, delta=0.001):
return (fn(x+delta) - fn(x))/delta
def solve(fn, value, x=0.5, maxtries=1000, maxerr=0.00001):
for tries in xrange(maxtries):
err = fn(x) - value
if abs(err) < maxerr:
return x
slope = dx(fn, x)
x -= err/slope
raise ValueError('no solution found')
There are lots of potential problems here - finding a good starting x-value, assuming that the function actually has a solution (ie there are no real-valued answers to x^2 + 2 = 0), hitting the limits of computational accuracy, etc. But in this case, the error minimization function is suitable and we get a good result:
solve(my_func, 16) # returns (x =) 5.000000000000496
Note that this solution is not absolutely, exactly correct. If you need it to be perfect, or if you want to try solving families of equations analytically, you have to turn to a more complicated beast: a symbolic solver.
A symbolic solver, like Mathematica or Maple, is an expert system with a lot of built-in rules ("knowledge") about algebra, calculus, etc; it "knows" that the derivative of sin is cos, that the derivative of kx^p is kpx^(p-1), and so on. When you give it an equation, it tries to find a path, a set of rule-applications, from where it is (the equation) to where you want to be (the simplest possible form of the equation, which is hopefully the solution).
Your example equation is quite simple; a symbolic solution might look like:
=> LHS([6, 2]) RHS([16])
# rule: pull all coefficients into LHS
LHS, RHS = [lh-rh for lh,rh in izip_longest(LHS, RHS, 0)], [0]
=> LHS([-10,2]) RHS([0])
# rule: solve first-degree poly
if RHS==[0] and len(LHS)==2:
LHS, RHS = [0,1], [-LHS[0]/LHS[1]]
=> LHS([0,1]) RHS([5])
and there is your solution: x = 5.
I hope this gives the flavor of the idea; the details of implementation (finding a good, complete set of rules and deciding when each rule should be applied) can easily consume many man-years of effort.
I met it when import a ViewController.m in TableViewController. Try to delete '#import "ViewController.m"' if it exited. Hope this help!
A theta join allows for arbitrary comparison relationships (such as ≥).
An equijoin is a theta join using the equality operator.
A natural join is an equijoin on attributes that have the same name in each relationship.
Additionally, a natural join removes the duplicate columns involved in the equality comparison so only 1 of each compared column remains; in rough relational algebraic terms:
? = pR,S-as ? ?aR=aS
In Relational algebra 'Selection' and 'Projection' are different operations, but the SQL SELECT combines these operations in a single statement.
Select retrieves the tuples (rows) in a relation (table) for which the condition in 'predicate' section (WHERE clause) stands true.
Project retrieves the attributes (columns) specified.
The following SQL SELECT query:
select field1,field2 from table1 where field1 = 'Value';
is a combination of both Projection and Selection operations of relational algebra.
This is really a square peg, round hole question.
If relational databases and SQL are the only hammer you have or are willing to use, then the answers that have been posted thus far are adequate. However, why not use a tool designed to handle hierarchical data? Graph database are ideal for complex hierarchical data.
The inefficiencies of the relational model along with the complexities of any code/query solution to map a graph/hierarchical model onto a relational model is just not worth the effort when compared to the ease with which a graph database solution can solve the same problem.
Consider a Bill of Materials as a common hierarchical data structure.
class Component extends Vertex {
long assetId;
long partNumber;
long material;
long amount;
};
class PartOf extends Edge {
};
class AdjacentTo extends Edge {
};
Shortest path between two sub-assemblies: Simple graph traversal algorithm. Acceptable paths can be qualified based on criteria.
Similarity: What is the degree of similarity between two assemblies? Perform a traversal on both sub-trees computing the intersection and union of the two sub-trees. The percent similar is the intersection divided by the union.
Transitive Closure: Walk the sub-tree and sum up the field(s) of interest, e.g. "How much aluminum is in a sub-assembly?"
Yes, you can solve the problem with SQL and a relational database. However, there are much better approaches if you are willing to use the right tool for the job.
FLENS
It also implements a lot of LAPACK functions.
Let me demonstrate with a piece of code taken from an answer to a "functional" Python question on SO
Python:
def grandKids(generation, kidsFunc, val):
layer = [val]
for i in xrange(generation):
layer = itertools.chain.from_iterable(itertools.imap(kidsFunc, layer))
return layer
Haskell:
grandKids generation kidsFunc val =
iterate (concatMap kidsFunc) [val] !! generation
The main difference here is that Haskell's standard library has useful functions for functional programming: in this case iterate
, concat
, and (!!)
Use:
return [n]
From help return
return: return [n]
Return from a shell function. Causes a function or sourced script to exit with the return value specified by N. If N is omitted, the return status is that of the last command executed within the function or script. Exit Status: Returns N, or failure if the shell is not executing a function or script.
Using Now() is not a good idea. It only save the current time and date. It will not update the the current date and time, when you update your data. If you want to add the time once, The default value =Now() is best option. If you want to use timestamp. and want to update the this value, each time that row is updated. Then, trigger is best option to use.
These two toturial will help to implement the trigger.
On .Net Core 3.1 just follow Microsoft Doc that it is pretty simple: kestrel-aspnetcore-3.1
To summarize:
Add the below ConfigureServices section to CreateDefaultBuilder on Program.cs
:
// using Microsoft.Extensions.DependencyInjection;
public static IHostBuilder CreateHostBuilder(string[] args) =>
Host.CreateDefaultBuilder(args)
.ConfigureServices((context, services) =>
{
services.Configure<KestrelServerOptions>(
context.Configuration.GetSection("Kestrel"));
})
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseStartup<Startup>();
});
Add the below basic config to appsettings.json
file (more config options on Microsoft article):
"Kestrel": {
"EndPoints": {
"Http": {
"Url": "http://0.0.0.0:5002"
}
}
}
Open CMD or Console on your project Publish/Debug/Release binaries folder and run:
dotnet YourProject.dll
Enjoy exploring your site/api at your http://localhost:5002
The documentation (https://angular.io/guide/template-syntax#!#star-template) gives the following example. Say we have template code like this:
<hero-detail *ngIf="currentHero" [hero]="currentHero"></hero-detail>
Before it will be rendered, it will be "de-sugared". That is, the asterix notation will be transcribed to the notation:
<template [ngIf]="currentHero">
<hero-detail [hero]="currentHero"></hero-detail>
</template>
If 'currentHero' is truthy this will be rendered as
<hero-detail> [...] </hero-detail>
But what if you want an conditional output like this:
<h1>Title</h1><br>
<p>text</p>
.. and you don't want the output be wrapped in a container.
You could write the de-sugared version directly like so:
<template [ngIf]="showContent">
<h1>Title</h1>
<p>text</p><br>
</template>
And this will work fine. However, now we need ngIf to have brackets [] instead of an asterix *, and this is confusing (https://github.com/angular/angular.io/issues/2303)
For that reason a different notation was created, like so:
<ng-container *ngIf="showContent"><br>
<h1>Title</h1><br>
<p>text</p><br>
</ng-container>
Both versions will produce the same results (only the h1 and p tag will be rendered). The second one is preferred because you can use *ngIf like always.
You can update a Hive partition by, for example:
ALTER TABLE logs PARTITION(year = 2012, month = 12, day = 18)
SET LOCATION 'hdfs://user/darcy/logs/2012/12/18';
This command does not move the old data, nor does it delete the old data. It simply sets the partition to the new location.
To drop a partition, you can do
ALTER TABLE logs DROP IF EXISTS PARTITION(year = 2012, month = 12, day = 18);
Hope it helps!
It's important to evaluate the different ways you can create an HttpClient, and part of that is understanding HttpClientFactory.
This is not a direct answer I know - but you're better off starting here than ending up with new HttpClient(...)
everywhere.
I've had the same problems including jpegs in LaTeX. The engine isn't really built to gather all the necessary size and scale information from JPGs. It is often better to take the JPEG and convert it into a PDF (on a mac) or EPS (on a PC). GraphicsConvertor on a mac will do that for you easily. Whereas a PDF includes DPI and size, a JPEG has only a size in terms of pixels.
( I know this is not the answer you wanted, but it's probably better to give them EPS/PDF that they can use than to worry about what happens when they try to scale your JPG).
This example demonstrate the .join()
action:
import threading
import time
def threaded_worker():
for r in range(10):
print('Other: ', r)
time.sleep(2)
thread_ = threading.Timer(1, threaded_worker)
thread_.daemon = True # If the main thread kills, this thread will be killed too.
thread_.start()
flag = True
for i in range(10):
print('Main: ', i)
time.sleep(2)
if flag and i > 4:
print(
'''
Threaded_worker() joined to the main thread.
Now we have a sequential behavior instead of concurrency.
''')
thread_.join()
flag = False
Out:
Main: 0
Other: 0
Main: 1
Other: 1
Main: 2
Other: 2
Main: 3
Other: 3
Main: 4
Other: 4
Main: 5
Other: 5
Threaded_worker() joined to the main thread.
Now we have a sequential behavior instead of concurrency.
Other: 6
Other: 7
Other: 8
Other: 9
Main: 6
Main: 7
Main: 8
Main: 9
Here is a great chrome extension to bulk delete your slack channel/group/im messages - https://slackext.com/deleter , where you can filter the messages by star, time range, or users. BTW, it also supports load all messages in recent version, then you can load your ~8k messages as you need.
Dim formattedDate As String = Date.Today.ToString("dd/MM/yyyy")
One of the Related posts gave me the (simple) answer.
Apparently the auto
value on the grid-template-rows
property does exactly what I was looking for.
.grid {
display:grid;
grid-template-columns: 1fr 1.5fr 1fr;
grid-template-rows: auto auto 1fr 1fr 1fr auto auto;
grid-gap:10px;
height: calc(100vh - 10px);
}
It works fine. Did you read the documentation? The string is converted to a regular expression.
.
is the special character matching all input characters.
As with any regular expression special character, you escape with a \
. You need an additional \
for the Java string escape.
You can create a pre-filled form URL from within the Form Editor, as described in the documentation for Drive Forms. You'll end up with a URL like this, for example:
https://docs.google.com/forms/d/--form-id--/viewform?entry.726721210=Mike+Jones&entry.787184751=1975-05-09&entry.1381372492&entry.960923899
In this example, question 1, "Name", has an ID of 726721210
, while question 2, "Birthday" is 787184751
. Questions 3 and 4 are blank.
You could generate the pre-filled URL by adapting the one provided through the UI to be a template, like this:
function buildUrls() {
var template = "https://docs.google.com/forms/d/--form-id--/viewform?entry.726721210=##Name##&entry.787184751=##Birthday##&entry.1381372492&entry.960923899";
var ss = SpreadsheetApp.getActive().getSheetByName("Sheet1"); // Email, Name, Birthday
var data = ss.getDataRange().getValues();
// Skip headers, then build URLs for each row in Sheet1.
for (var i = 1; i < data.length; i++ ) {
var url = template.replace('##Name##',escape(data[i][1]))
.replace('##Birthday##',data[i][2].yyyymmdd()); // see yyyymmdd below
Logger.log(url); // You could do something more useful here.
}
};
This is effective enough - you could email the pre-filled URL to each person, and they'd have some questions already filled in.
Instead of creating our template using brute force, we can piece it together programmatically. This will have the advantage that we can re-use the code without needing to remember to change the template.
Each question in a form is an item. For this example, let's assume the form has only 4 questions, as you've described them. Item [0]
is "Name", [1]
is "Birthday", and so on.
We can create a form response, which we won't submit - instead, we'll partially complete the form, only to get the pre-filled form URL. Since the Forms API understands the data types of each item, we can avoid manipulating the string format of dates and other types, which simplifies our code somewhat.
(EDIT: There's a more general version of this in How to prefill Google form checkboxes?)
/**
* Use Form API to generate pre-filled form URLs
*/
function betterBuildUrls() {
var ss = SpreadsheetApp.getActive();
var sheet = ss.getSheetByName("Sheet1");
var data = ss.getDataRange().getValues(); // Data for pre-fill
var formUrl = ss.getFormUrl(); // Use form attached to sheet
var form = FormApp.openByUrl(formUrl);
var items = form.getItems();
// Skip headers, then build URLs for each row in Sheet1.
for (var i = 1; i < data.length; i++ ) {
// Create a form response object, and prefill it
var formResponse = form.createResponse();
// Prefill Name
var formItem = items[0].asTextItem();
var response = formItem.createResponse(data[i][1]);
formResponse.withItemResponse(response);
// Prefill Birthday
formItem = items[1].asDateItem();
response = formItem.createResponse(data[i][2]);
formResponse.withItemResponse(response);
// Get prefilled form URL
var url = formResponse.toPrefilledUrl();
Logger.log(url); // You could do something more useful here.
}
};
Any date item in the pre-filled form URL is expected to be in this format: yyyy-mm-dd
. This helper function extends the Date object with a new method to handle the conversion.
When reading dates from a spreadsheet, you'll end up with a javascript Date object, as long as the format of the data is recognizable as a date. (Your example is not recognizable, so instead of May 9th 1975
you could use 5/9/1975
.)
// From http://blog.justin.kelly.org.au/simple-javascript-function-to-format-the-date-as-yyyy-mm-dd/
Date.prototype.yyyymmdd = function() {
var yyyy = this.getFullYear().toString();
var mm = (this.getMonth()+1).toString(); // getMonth() is zero-based
var dd = this.getDate().toString();
return yyyy + '-' + (mm[1]?mm:"0"+mm[0]) + '-' + (dd[1]?dd:"0"+dd[0]);
};
To get the Color from Hex.
using System.Windows.Media;
Color color = (Color)ColorConverter.ConvertFromString("#FFDFD991");
and then set the foreground
textBlock.Foreground = new System.Windows.Media.SolidColorBrush(color);
To your first question:
I would go with Paul R's comment and terminate with '\0'
. But the value 0
itself works also fine. A matter of taste. But don't use the MACRO NULL
which is meant for pointers.
To your second question:
If your string is not terminated with\0
, it might still print the expected output because following your string is a non-printable character in your memory. This is a really nasty bug though, since it might blow up when you might not expect it. Always terminate a string with '\0'
.
I had the same issue after adding the library icepick to my gradle dependencies. After removing the dependencie, everything seems to be fine. As soon as i know why this issue appeared i'll write here again
You can simply run
kubectl delete all --all --all-namespaces
The first all
means the common resource kinds (pods, replicasets, deployments, ...)
kubectl get all == kubectl get pods,rs,deployments, ...
The second --all
means to select all resources of the selected kinds
Note that all
does not include:
In order to clean up perfectly,
The linked list holds operations on the shared data structure.
For example, if I have a stack, it will be manipulated with pushes and pops. The linked list would be a set of pushes and pops on the pseudo-shared stack. Each thread sharing that stack will actually have a local copy, and to get to the current shared state, it'll walk the linked list of operations, and apply each operation in order to its local copy of the stack. When it reaches the end of the linked list, its local copy holds the current state (though, of course, it's subject to becoming stale at any time).
In the traditional model, you'd have some sort of locks around each push and pop. Each thread would wait to obtain a lock, then do a push or pop, then release the lock.
In this model, each thread has a local snapshot of the stack, which it keeps synchronized with other threads' view of the stack by applying the operations in the linked list. When it wants to manipulate the stack, it doesn't try to manipulate it directly at all. Instead, it simply adds its push or pop operation to the linked list, so all the other threads can/will see that operation and they can all stay in sync. Then, of course, it applies the operations in the linked list, and when (for example) there's a pop it checks which thread asked for the pop. It uses the popped item if and only if it's the thread that requested this particular pop.
I have edited your layout. Check this code now.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#33B5E5"
android:padding="5dp" >
<ImageView
android:id="@+id/icon"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignParentLeft="true"
android:layout_centerInParent="true"
android:background="@android:drawable/ic_lock_lock" />
<TextView
android:id="@+id/func_text"
android:layout_width="wrap_content"
android:layout_height="100dp"
android:layout_gravity="center_vertical"
android:layout_toRightOf="@+id/icon"
android:gravity="center"
android:padding="5dp"
android:text="This is my test string............"
android:textColor="#FFFFFF" />
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignParentRight="true"
android:layout_centerInParent="true"
android:layout_gravity="center_vertical"
android:src="@android:drawable/ic_media_next" />
</RelativeLayout>
You could also just call the script from the terminal, outputting everything to a file, if that helps. This way:
$ /path/to/the/script.py > output.txt
This will overwrite the file. You can use >>
to append to it.
If you want errors to be logged in the file as well, use &>>
or &>
.
Absolute Xpath: It uses Complete path from the Root Element to the desire element.
Relative Xpath: You can simply start by referencing the element you want and go from there.
Relative Xpaths are always preferred as they are not the complete paths from the root element. (//html//body). Because in future, if any webelement is added/removed, then the absolute Xpath changes. So Always use Relative Xpaths in your Automation.
Below are Some Links which you can Refer for more Information on them.
Starting from CSS Selectors 4 using multiple arguments in the :not
selector becomes possible (see here).
In CSS3, the :not selector only allows 1 selector as an argument. In level 4 selectors, it can take a selector list as an argument.
Example:
/* In this example, all p elements will be red, except for
the first child and the ones with the class special. */
p:not(:first-child, .special) {
color: red;
}
Unfortunately, browser support is limited. For now, it only works in Safari.
Save xls file (Excel file) as Unicode text=>file will be saved in text format (.txt)
Change format from .txt to .csv (rename the file from XYX.txt to XYX.csv
This version is packed in a function that accepts a custom delimiter, filter, and returns a flat dictionary:
function flatten(source, delimiter, filter) {
var result = {}
;(function flat(obj, stack) {
Object.keys(obj).forEach(function(k) {
var s = stack.concat([k])
var v = obj[k]
if (filter && filter(k, v)) return
if (typeof v === 'object') flat(v, s)
else result[s.join(delimiter)] = v
})
})(source, [])
return result
}
var obj = {
a: 1,
b: {
c: 2
}
}
flatten(obj)
// <- Object {a: 1, b.c: 2}
flatten(obj, '/')
// <- Object {a: 1, b/c: 2}
flatten(obj, '/', function(k, v) { return k.startsWith('a') })
// <- Object {b/c: 2}
You could search for the corresponding key or you could "invert" the dictionary, but considering how you use it, it would be best if you just iterated over key/value pairs in the first place, which you can do with items()
. Then you have both directly in variables and don't need a lookup at all:
for key, value in PIX0.items():
NUM = input("What is the Resolution of %s?" % key)
if NUM == value:
You can of course use that both ways then.
Or if you don't actually need the dictionary for something else, you could ditch the dictionary and have an ordinary list of pairs.
I followed this tutorial to set up my android environment variables I was on mac and I had all the required environmental variable setup and working already. but i was still getting this error that requires environment ANDROID_SDK_ROOT.
I already had an android SDK exported environment variable.
So, what I simply did is adding ANDROID_HOME to the path with the following commands:
export PATH=$PATH:$ANDROID_HOME
and it worked for me on macOS
When you compile and run the code, you should set the classpath options value. Just like the following:
javac -classpath .;sqlitejdbc-v056.jar Text.java
java -classpath .;sqlitejdbc-v056.jar Text
Please pay attention to "." and the sparate ";"(win, the linux is ":")
A2 = [float(x.strip('"')) for x in A1]
works, @Jake , but there are unnecessary 0s
all of you can test this example and easy to understand.
Name: <input type="text" id="text" class ="input">
<input type="text" id="text1" class ="input">
Gender: <input type="radio" id="m" class="Rm" name="Rmale" value="Male">
<input type="radio" id="f" class="Rm" name="Rfemale" value="Female">
Course: <input type="checkbox" id="math" class="cm" name="Cmath" value="Math">
<input type="checkbox" id="physic" class="cm" name="Cphysic" value="Physic">
<input type="checkbox" id="eng" class="cm" name="Ceng" value="English">
<button type="button" id="b1">show</button>
// javascript
<script>
function getData(input){
return document.getElementById(input).value;
}
function dataByClassName(st){
var value=document.getElementsByClassName(st)
for(var i=0;i < value.length;i++){
if(value[i].checked){
return value[i].value;
}
}
}
document.getElementById("b1").onclick = function ()
{
var st={
name : getData("text")+getData("text1"),
gender : dataByClassName("Rm"),
course : dataByClassName("cm")
};
alert(st.name+" "+st.gender+" "+st.course);
};
</script>
Be aware that the function File.GetLastWriteTime does not always work as expected, the values are sometimes not instantaneously updated by the OS. You may get an old Timestamp, even if the file has been modified right before.
The behaviour may vary between OS versions. For example, this unit test worked well every time on my developer machine, but it always fails on our build server.
[TestMethod]
public void TestLastModifiedTimeStamps()
{
var tempFile = Path.GetTempFileName();
var lastModified = File.GetLastWriteTime(tempFile);
using (new FileStream(tempFile, FileMode.Create, FileAccess.Write, FileShare.None))
{
}
Assert.AreNotEqual(lastModified, File.GetLastWriteTime(tempFile));
}
See File.GetLastWriteTime seems to be returning 'out of date' value
Your options:
a) live with the occasional omissions.
b) Build up an active component realising the observer pattern (eg. a tcp server client structure), communicating the changes directly instead of writing / reading files. Fast and flexible, but another dependency and a possible point of failure (and some work, of course).
c) Ensure the signalling process by replacing the content of a dedicated signal file that other processes regularly read. It´s not that smart as it´s a polling procedure and has a greater overhead than calling File.GetLastWriteTime, but if not checking the content from too many places too often, it will do the work.
/// <summary>
/// type to set signals or check for them using a central file
/// </summary>
public class FileSignal
{
/// <summary>
/// path to the central file for signal control
/// </summary>
public string FilePath { get; private set; }
/// <summary>
/// numbers of retries when not able to retrieve (exclusive) file access
/// </summary>
public int MaxCollisions { get; private set; }
/// <summary>
/// timespan to wait until next try
/// </summary>
public TimeSpan SleepOnCollisionInterval { get; private set; }
/// <summary>
/// Timestamp of the last signal
/// </summary>
public DateTime LastSignal { get; private set; }
/// <summary>
/// constructor
/// </summary>
/// <param name="filePath">path to the central file for signal control</param>
/// <param name="maxCollisions">numbers of retries when not able to retrieve (exclusive) file access</param>
/// <param name="sleepOnCollisionInterval">timespan to wait until next try </param>
public FileSignal(string filePath, int maxCollisions, TimeSpan sleepOnCollisionInterval)
{
FilePath = filePath;
MaxCollisions = maxCollisions;
SleepOnCollisionInterval = sleepOnCollisionInterval;
LastSignal = GetSignalTimeStamp();
}
/// <summary>
/// constructor using a default value of 50 ms for sleepOnCollisionInterval
/// </summary>
/// <param name="filePath">path to the central file for signal control</param>
/// <param name="maxCollisions">numbers of retries when not able to retrieve (exclusive) file access</param>
public FileSignal(string filePath, int maxCollisions): this (filePath, maxCollisions, TimeSpan.FromMilliseconds(50))
{
}
/// <summary>
/// constructor using a default value of 50 ms for sleepOnCollisionInterval and a default value of 10 for maxCollisions
/// </summary>
/// <param name="filePath">path to the central file for signal control</param>
public FileSignal(string filePath) : this(filePath, 10)
{
}
private Stream GetFileStream(FileAccess fileAccess)
{
var i = 0;
while (true)
{
try
{
return new FileStream(FilePath, FileMode.Create, fileAccess, FileShare.None);
}
catch (Exception e)
{
i++;
if (i >= MaxCollisions)
{
throw e;
}
Thread.Sleep(SleepOnCollisionInterval);
};
};
}
private DateTime GetSignalTimeStamp()
{
if (!File.Exists(FilePath))
{
return DateTime.MinValue;
}
using (var stream = new FileStream(FilePath, FileMode.Open, FileAccess.Read, FileShare.None))
{
if(stream.Length == 0)
{
return DateTime.MinValue;
}
using (var reader = new BinaryReader(stream))
{
return DateTime.FromBinary(reader.ReadInt64());
};
}
}
/// <summary>
/// overwrites the existing central file and writes the current time into it.
/// </summary>
public void Signal()
{
LastSignal = DateTime.Now;
using (var stream = new FileStream(FilePath, FileMode.Create, FileAccess.Write, FileShare.None))
{
using (var writer = new BinaryWriter(stream))
{
writer.Write(LastSignal.ToBinary());
}
}
}
/// <summary>
/// returns true if the file signal has changed, otherwise false.
/// </summary>
public bool CheckIfSignalled()
{
var signal = GetSignalTimeStamp();
var signalTimestampChanged = LastSignal != signal;
LastSignal = signal;
return signalTimestampChanged;
}
}
Some tests for it:
[TestMethod]
public void TestSignal()
{
var fileSignal = new FileSignal(Path.GetTempFileName());
var fileSignal2 = new FileSignal(fileSignal.FilePath);
Assert.IsFalse(fileSignal.CheckIfSignalled());
Assert.IsFalse(fileSignal2.CheckIfSignalled());
Assert.AreEqual(fileSignal.LastSignal, fileSignal2.LastSignal);
fileSignal.Signal();
Assert.IsFalse(fileSignal.CheckIfSignalled());
Assert.AreNotEqual(fileSignal.LastSignal, fileSignal2.LastSignal);
Assert.IsTrue(fileSignal2.CheckIfSignalled());
Assert.AreEqual(fileSignal.LastSignal, fileSignal2.LastSignal);
Assert.IsFalse(fileSignal2.CheckIfSignalled());
}
Launch the program "Run" (Windows Vista/7/8: type it in the start menu search bar) and type:
C:\windows\assembly\GAC_MSIL
Then move to the parent folder (Windows Vista/7/8: by clicking on it in the explorer bar) to see all the GAC files in a normal explorer window. You can now copy, add and remove files as everywhere else.
Edited answer: IE understands just screen and print as import media. All other CSS supplied along with the import statement causes IE8 to ignore the import statement. Geco browser like safari or mozilla didn't have this problem.
allow from all
will not work along with Require local
. Instead, try Require ip xxx.xxx.xxx.xx
For Example:
# New XAMPP security concept
#
<LocationMatch "^/(?i:(?:xampp|security|licenses|phpmyadmin|webalizer|server-status|server-info))">
Require local
Require ip 10.0.0.1
ErrorDocument 403 /error/XAMPP_FORBIDDEN.html.var
</LocationMatch>
The solution is to use display: table-cell
to bring those elements inline instead of using display: inline-block
or float: left
.
div#container {_x000D_
padding: 20px;_x000D_
background: #F1F1F1_x000D_
}_x000D_
.content {_x000D_
width: 150px;_x000D_
background: #ddd;_x000D_
padding: 10px;_x000D_
display: table-cell;_x000D_
vertical-align: top;_x000D_
}_x000D_
.text {_x000D_
font-family: 12px Tahoma, Geneva, sans-serif;_x000D_
color: #555;_x000D_
}
_x000D_
<div id="container">_x000D_
<div class="content">_x000D_
<h1>Title 1</h1>_x000D_
_x000D_
<div class="text">Sample Text. Sample Text. Sample Text. Sample Text. Sample Text. Sample Text. Sample Text. Sample Text. Sample Text._x000D_
<br>Sample Text. Sample Text. Sample Text._x000D_
<br>Sample Text._x000D_
<br>_x000D_
</div>_x000D_
</div>_x000D_
<div class="content">_x000D_
<h1>Title 2</h1>_x000D_
_x000D_
<div class="text">Sample Text. Sample Text. Sample Text. Sample Text. Sample Text. Sample Text. Sample Text. Sample Text. Sample Text.</div>_x000D_
</div>_x000D_
</div>
_x000D_
As already mentioned, they are the same, but I use either the one or the other depending on the language in which the corresponding framework was written.
For everything related to Objective-C, I use nil. For example:
- (BOOL)doSomethingWithObjectsInArray:(NSArray *)anArray {
if (anArray == nil) return NO;
// process elements
...
}
However, when checking validity of data models from a C-framework (like AddressBook framework and CoreFoundation), I use NULL. For example:
- (BOOL)showABUnknownPersonVCForABRecordRef:(ABRecordRef)aRecord {
if (aRecord == NULL) return NO;
// set-up the ABUnknownPersonViewController and display it on screen
..
}
This way, I have subtle clues in my code if I'm dealing with Obj-C or C based code.
echo pattern | sed -E -e $'s/^(pattern)/\\\n\\1/'
worked fine on El Captitan with ()
support
See this question. LINQ Take() and Skip() are the most popular answers, as well as Array.CopyTo().
A purportedly faster extension method is described here.
Remember using
myDiv.InnerHtml = "something";
will replace all HTML elements in myDIV. you need to append text to avoid that.In that this may help
myDiv.InnerHtml = "something" + myDiv.InnerText;
any html control in myDiv but not ASP html controls(as they are not rendered yet).
You should create the response using Request.CreateResponse:
HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.BadRequest, "Error message");
You can pass objects not just strings to CreateResponse and it will serialize them based on the request's Accept header. This saves you from manually choosing a formatter.
From the javadocs..http://docs.oracle.com/javase/tutorial/essential/io/pathOps.html
Path p1 = Paths.get("/tmp/foo");
is the same as
Path p4 = FileSystems.getDefault().getPath("/tmp/foo");
Path p3 = Paths.get(URI.create("file:///Users/joe/FileTest.java"));
Path p5 = Paths.get(System.getProperty("user.home"),"logs", "foo.log");
In Windows, creates file C:\joe\logs\foo.log (assuming user home as C:\joe)
In Unix, creates file /u/joe/logs/foo.log (assuming user home as /u/joe)
Applying inline-block
to the element that is to be centered and applying text-align:center
to the parent block did the trick for me.
Works even on <span>
tags.
C11 timespec_get
It returns up to nanoseconds, rounded to the resolution of the implementation.
It is already implemented in Ubuntu 15.10. API looks the same as the POSIX clock_gettime
.
#include <time.h>
struct timespec ts;
timespec_get(&ts, TIME_UTC);
struct timespec {
time_t tv_sec; /* seconds */
long tv_nsec; /* nanoseconds */
};
More details here: https://stackoverflow.com/a/36095407/895245
I don't know why but for me text-align:center;
only works with:
text-align: grid;
OR
display: inline-grid;
I checked and no one style is overriding.
My structure:
<ul>
<li>
<a>ElementToCenter</a>
</li>
</ul>
$time = 00:06:00;
$timeInSeconds = strtotime($time) - strtotime('TODAY');
dplyr::as_data_frame(df, rownames = "your_row_name")
will give you even simpler result.
I wold create a control named for example InfoProgresBar, that provide this functionality with a label or two (Main Job, Current Job) and ProgressBar and use it instead of that ProgressBar.
To convert a string to lower case in Python, use something like this.
list.append(sentence.lower())
I found this in the first result after searching for "python upper to lower case".
in Express 4, it's really simple
const app = express()
const p = process.env.PORT || 8082
app.use(express.json())
It was a Resharper issue. In Resharper options->Tools->MSTEST, I unchecked the Use Legacy Runner and now it works.
If you want to check if some string is present in another string, use something like String.contains
If you want to check if some pattern is present in a string, append and prepend the pattern with '.*'. The result will accept strings that contain the pattern.
Example: Suppose you have some regex a(b|c) that checks if a string matches ab
or ac
.*(a(b|c)).*
will check if a string contains a ab
or ac
.
A disadvantage of this method is that it will not give you the location of the match.
Before using v-html
, you have to make sure that the element which you escape is sanitized in case you allow user input, otherwise you expose your app to xss vulnerabilities.
More info here: https://vuejs.org/v2/guide/security.html
I highly encourage you that instead of using v-html
to use this npm package
In case you want to find other node besides "Alpha", the query should be something like this:
select Roles from MyTable where Roles.exist('(/*:root/*:role[contains(.,"Beta")])') = 1
Send XML requests with the raw
data type, then set the Content-Type to text/xml
.
After creating a request, use the dropdown to change the request type to POST.
Open the Body tab and check the data type for raw.
Open the Content-Type selection box that appears to the right and select either XML (application/xml) or XML (text/xml)
Enter your raw XML data into the input field below
Click Send to submit your XML Request to the specified server.
An easy way to get the first or last segment, in case you are unsure of the path length.
$segments = request()->segments();
$last = end($segments);
$first = reset($segments);
As an addition
To disable all rules for the next line // tslint:disable-next-line
To disable specific rules for the next line: // tslint:disable-next-line:rule1 rule2...
To disable all rules for the current line: someCode(); // tslint:disable-line
To disable specific rules for the current line: someCode(); // tslint:disable-line:rule1
var statuses = new[] { "A", "B", "C" };
var filteredOrders = from order in orders.Order
where statuses.Contains(order.StatusCode)
select order;
Check the below links:
Implicit Wait
- It instructs the web driver to wait for some time by poll the DOM. Once you declared implicit wait it will be available for the entire life of web driver instance. By default the value will be 0. If you set a longer default, then the behavior will poll the DOM on a periodic basis depending on the browser/driver implementation.
Explicit Wait
+ ExpectedConditions
- It is the custom one. It will be used if we want the execution to wait for some time until some condition achieved.
I've just asked a similar question and here's my solution based on answer received (using boost::filesystem
library):
#include <string>
#include <iostream>
#include <boost/filesystem.hpp>
using namespace std;
using namespace boost::filesystem;
int main()
{
path p("D:/AnyFolder");
for (auto i = directory_iterator(p); i != directory_iterator(); i++)
{
if (!is_directory(i->path())) //we eliminate directories in a list
{
cout << i->path().filename().string() << endl;
}
else
continue;
}
}
Output is like:
file1.txt
file2.dat
If any one still reading this then, to access in cshtml file I used in following way.
<li>Hello @User.Identity.Name</li>
Enum is just a little bit special class. Enums can store additional fields, implement methods etc. For example
public enum Modes {
mode1('a'),
mode2('b'),
mode3('c'),
;
char c;
private Modes(char c) {
this.c = c;
}
public char character() {
return c;
}
}
Now you can say:
System.out.println(Modes.mode1.character())
and see output:
a
Of the languages you mention Java, PHP, Python, Ruby, Perl are certainly more platform independent than C/C++ (and ASP.NET).
Lots of platform-specific differences also come from what libraries are available for a given platform.
In practice however, I think you will always develop on the same or at least very similar platform (operating system flavour) as the system where your code will run, i.e. the cloud will not take source code and compile it for you before running it.
Personally I would go for Java or Python (probably also Ruby) as they have a vast number of libraries available for all kinds of tasks and are very platform independent.
You can use anycache to do the job for you. It considers all the details:
pickle
module to handle lambda
and all the nice
python features.Assuming you have a function myfunc
which creates the instance:
from anycache import anycache
class Company(object):
def __init__(self, name, value):
self.name = name
self.value = value
@anycache(cachedir='/path/to/your/cache')
def myfunc(name, value)
return Company(name, value)
Anycache calls myfunc
at the first time and pickles the result to a
file in cachedir
using an unique identifier (depending on the function name and its arguments) as filename.
On any consecutive run, the pickled object is loaded.
If the cachedir
is preserved between python runs, the pickled object is taken from the previous python run.
For any further details see the documentation
A different approach that I found ugly compared to the classic dict+append, but that works:
df = df.T
df[0] = ['1/1/2013', 'Smith','test',123]
df = df.T
df
Out[6]:
Date Name Action ID
0 1/1/2013 Smith test 123
input[readonly]
{
background-color:blue;
}
https://curtistimson.co.uk/post/css/style-readonly-attribute-css/
What does res.render do and what does the html file look like?
res.render()
function compiles your template (please don't use ejs), inserts locals there, and creates html output out of those two things.
Answering Edit 2 part.
// here you set that all templates are located in `/views` directory
app.set('views', __dirname + '/views');
// here you set that you're using `ejs` template engine, and the
// default extension is `ejs`
app.set('view engine', 'ejs');
// here you render `orders` template
response.render("orders", {orders: orders_json});
So, the template path is views/
(first part) + orders
(second part) + .ejs
(third part) === views/orders.ejs
Anyway, express.js documentation is good for what it does. It is API reference, not a "how to use node.js" book.
I had a similar problem, with two jar libraries (app1 and app2) in one project. The bean "BeanName" is defined in app1 and is extended in app2 and the bean redefined with the same name.
In app1:
package com.foo.app1.pkg1;
@Component("BeanName")
public class Class1 { ... }
In app2:
package com.foo.app2.pkg2;
@Component("BeanName")
public class Class2 extends Class1 { ... }
This causes the ConflictingBeanDefinitionException
exception in the loading of the applicationContext due to the same component bean name.
To solve this problem, in the Spring configuration file applicationContext.xml
:
<context:component-scan base-package="com.foo.app2.pkg2"/>
<context:component-scan base-package="com.foo.app1.pkg1">
<context:exclude-filter type="assignable" expression="com.foo.app1.pkg1.Class1"/>
</context:component-scan>
So the Class1 is excluded to be automatically component-scanned and assigned to a bean, avoiding the name conflict.
Queue
is an interface that extends Collection
in Java. It has all the functions needed to support FIFO
architecture.
For concrete implementation you may use LinkedList
. LinkedList implements Deque
which in turn implements Queue
. All of these are a part of java.util
package.
For details about method with sample example you can refer FIFO based Queue implementation in Java.
PS: Above link goes to my personal blog that has additional details on this.
I would like to point out that using int const *
(or const int *
) isn't about a pointer pointing to a const int
variable, but that this variable is const
for this specific pointer.
For example:
int var = 10;
int const * _p = &var;
The code above compiles perfectly fine. _p
points to a const
variable, although var
itself isn't constant.
It is better to parse the URL properly - this way you can handle http://.../file.doc?foo
and http://.../foo.doc/file.exe
correctly.
from urlparse import urlparse
import os
path = urlparse(url_string).path
ext = os.path.splitext(path)[1]
if ext in extensionsToCheck:
print(url_string)
SYSDATETIME() 2007-04-30 13:10:02.0474381
SYSDATETIMEOFFSET()2007-04-30 13:10:02.0474381 -07:00
SYSUTCDATETIME() 2007-04-30 20:10:02.0474381
CURRENT_TIMESTAMP 2007-04-30 13:10:02.047 +
GETDATE() 2007-04-30 13:10:02.047
GETUTCDATE() 2007-04-30 20:10:02.047
I guess NOW() doesn't work sometime and gives error 'NOW' is not a recognized built-in function name.
Hope it helps!!! Thank You. https://docs.microsoft.com/en-us/sql/t-sql/functions/getdate-transact-sql
Try this if you are on ubuntu:
sudo apt-get update
sudo apt-get install build-essential libpq-dev libssl-dev openssl libffi-dev zlib1g-dev
sudo apt-get install python3-pip python3.7-dev
sudo apt-get install python3.7
In case you don't have the repository and so it fires a not-found package you first have to install this:
sudo apt-get install -y software-properties-common
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt-get update
more info here: http://devopspy.com/python/install-python-3-6-ubuntu-lts/
just for the sake of thought - place object's properties out of a timeline:
var foo = {
a: function(){return 5}(),
b: function(){return 6}(),
c: function(){return this.a + this.b}
}
console.log(foo.c())
there are better answers above too. This is how I modified example code you questioned with.
UPDATE:
var foo = {
get a(){return 5},
get b(){return 6},
get c(){return this.a + this.b}
}
// console.log(foo.c);
If you are using sagemath cloud version, you can simply go to the left corner,
select File --> Download as --> Pdf via LaTeX (.pdf)
Check the screenshot if you want.
Screenshot Convert ipynb to pdf
If it dosn't work for any reason, you can try another way.
select File --> Print Preview and then on the preview
right click --> Print and then select save as pdf.
The answers above will work for changing the values.
If you want to change the number of cells in your list (e.g. I have a list called 'revisions' which has 4 items, I now need 7 items) you will find that you can't simply select your list and amend it on the sheet, So:
go to your 'Formulas' tab
choose "Name Manager"
a pop up box will show what is available for editing. Your list should be in it. Select your list and edit the range.
Just to expand on Daniel's solution, you can shorten things up tremendously by inserting the following import into any file which requires file manipulation:
import scala.io.Source._
With this, you can now do:
val lines = fromFile("file.txt").getLines
I would be wary of reading an entire file into a single String
. It's a very bad habit, one which will bite you sooner and harder than you think. The getLines
method returns a value of type Iterator[String]
. It's effectively a lazy cursor into the file, allowing you to examine just the data you need without risking memory glut.
Oh, and to answer your implied question about Source
: yes, it is the canonical I/O library. Most code ends up using java.io
due to its lower-level interface and better compatibility with existing frameworks, but any code which has a choice should be using Source
, particularly for simple file manipulation.
Try this:
foreach($samplearr as $key => $item){
print "<tr><td>"
. $key
. "</td><td>"
. $item['value1']
. "</td><td>"
. $item['value2']
. "</td></tr>";
}
For Postgres:
SELECT column
FROM table
WHERE char_length(column) = (SELECT max(char_length(column)) FROM table )
This will give you the string itself,modified for postgres from @Thorsten Kettner answer
In the hope it might help a little, here's a simple example I used to understand the difference between a variable declared inside a class, and a variable declared inside an __init__
function:
class MyClass(object):
i = 123
def __init__(self):
self.i = 345
a = MyClass()
print(a.i)
print(MyClass.i)
Output:
345
123
/**
* {@code 422 Unprocessable Entity}.
* @see <a href="https://tools.ietf.org/html/rfc4918#section-11.2">WebDAV</a>
*/
UNPROCESSABLE_ENTITY(422, "Unprocessable Entity")
Yes, it is possible by using a simple custom pipe. Advantage of using custom pipe is if we need to update the date format in future, we can go and update a single file.
import { Pipe, PipeTransform } from '@angular/core';
import { DatePipe } from '@angular/common';
@Pipe({
name: 'dateFormatPipe',
})
export class dateFormatPipe implements PipeTransform {
transform(value: string) {
var datePipe = new DatePipe("en-US");
value = datePipe.transform(value, 'MMM-dd-yyyy');
return value;
}
}
{{currentDate | dateFormatPipe }}
You can always use this pipe anywhere , component, services etc
For example:
export class AppComponent {
currentDate : any;
newDate : any;
constructor(){
this.currentDate = new Date().getTime();
let dateFormatPipeFilter = new dateFormatPipe();
this.newDate = dateFormatPipeFilter.transform(this.currentDate);
console.log(this.newDate);
}
Don't forget to import dependencies.
import { Component } from '@angular/core';
import {dateFormatPipe} from './pipes'
Proper way (as of Go 1.13) (provided by answer below):
customTransport := http.DefaultTransport.(*http.Transport).Clone()
customTransport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
client := &http.Client{Transport: customTransport}
Original Answer:
Here's a way to do it without losing the default settings of the DefaultTransport
, and without needing the fake request as per user comment.
defaultTransport := http.DefaultTransport.(*http.Transport)
// Create new Transport that ignores self-signed SSL
customTransport := &http.Transport{
Proxy: defaultTransport.Proxy,
DialContext: defaultTransport.DialContext,
MaxIdleConns: defaultTransport.MaxIdleConns,
IdleConnTimeout: defaultTransport.IdleConnTimeout,
ExpectContinueTimeout: defaultTransport.ExpectContinueTimeout,
TLSHandshakeTimeout: defaultTransport.TLSHandshakeTimeout,
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
client := &http.Client{Transport: customTransport}
Shorter way:
customTransport := &(*http.DefaultTransport.(*http.Transport)) // make shallow copy
customTransport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
client := &http.Client{Transport: customTransport}
Warning: For testing/development purposes only. Anything else, proceed at your own risk!!!
This will give you an array with 50 random numbers and display the smallest number in the array. I did it for an assignment in my programming class.
public static void main(String args[]) {
// TODO Auto-generated method stub
int i;
int[] array = new int[50];
for(i = 0; i < array.length; i++) {
array[i] = (int)(Math.random() * 100);
System.out.print(array[i] + " ");
int smallest = array[0];
for (i=1; i<array.length; i++)
{
if (array[i]<smallest)
smallest = array[i];
}
}
}
}`
Correct answer is simply:
SELECT a.group_id
FROM a
LEFT JOIN b ON a.group_id=b.group_id and b.user_id = 4
where b.user_id is null
and a.keyword like '%keyword%'
Here we are checking user_id = 4
(your user id from the session). Since we have it in the join criteria, it will return null values for any row in table b that does not match the criteria - ie, any group that that user_id is NOT in.
From there, all we need to do is filter for the null values, and we have all the groups that your user is not in.
You can add command line arguments to your run configuration. Just edit the run configuration and add -Dmyprop=value (or whatever) to the VM Arguments Box.
class Program
{
static void Main(string[] args)
{
string s1 =" My Name varma:;
string[] arr = s1.Split(' ');
Array.Reverse(arr);
string str = string.Join(" ", arr);
Console.WriteLine(str);
Console.ReadLine();
}
}
Here is a shorter version that takes care of
Code:
var setQueryParameter = function(uri, key, value) {
var re = new RegExp("([?&])("+ key + "=)[^&#]*", "g");
if (uri.match(re))
return uri.replace(re, '$1$2' + value);
// need to add parameter to URI
var paramString = (uri.indexOf('?') < 0 ? "?" : "&") + key + "=" + value;
var hashIndex = uri.indexOf('#');
if (hashIndex < 0)
return uri + paramString;
else
return uri.substring(0, hashIndex) + paramString + uri.substring(hashIndex);
}
The regex description can be found here.
NOTE: This solution is based on @amateur answer, but with many improvements.
Select Table Column Name where you want to get default value of Current date
ALTER TABLE
[dbo].[Table_Name]
ADD CONSTRAINT [Constraint_Name]
DEFAULT (getdate()) FOR [Column_Name]
Alter Table Query
Alter TABLE [dbo].[Table_Name](
[PDate] [datetime] Default GetDate())
my solution is quite the same as Pumbaa80's one, but I suggest to use display: table
instead of display:table-row
for li
element.
So it will be something like this:
ol {
counter-reset: foo; /* default display:list-item */
}
ol > li {
counter-increment: foo;
display: table; /* instead of table-row */
}
ol > li::before {
content: counter(foo) ".";
display: table-cell;
text-align: right;
}
So now we can use margins for spacing between li
's
Use the -o ConnectTimeout
and -o BatchMode=yes -o StrictHostKeyChecking=no
.
ConnectTimeout keeps the script from hanging, BatchMode keeps it from hanging with Host unknown, YES to add to known_hosts, and StrictHostKeyChecking adds the fingerprint automatically.
**** NOTE **** The "StrictHostKeyChecking" was only intended for internal networks where you trust you hosts. Depending on the version of the SSH client, the "Are you sure you want to add your fingerprint" can cause the client to hang indefinitely (mainly old versions running on AIX). Most modern versions do not suffer from this issue. If you have to deal with fingerprints with multiple hosts, I recommend maintaining the known_hosts file with some sort of configuration management tool like puppet/ansible/chef/salt/etc.
It depends on your file path. For me, the current directory was [project]\bin\Debug
, so I had to move to the parent folder twice.
Image image = Image.FromFile(@"..\..\Pictures\"+text+".png");
this.pictureBox1.Image = image;
To find your current directory, you can make a dummy label called label2 and write this:
this.label2.Text = System.IO.Directory.GetCurrentDirectory();
I have read all the answers here and they all seem to cover old versions of Android Studio!
With a project created with Android Studio 2.2.3 I just needed to create a libs
directory under app
and place my jar there.
I did that with my file manager, no need to click or edit anything in Android Studio.
Why it works? Open Build / Edit Libraries and Dependencies and you will see:
{include=[*.jar], dir=libs}
Here you go:
^[^<>]*$
This will test for string that has no <
and no >
If you want to test for a string that may have <
and >
, but must also have something other you should use just
[^<>] (or ^.*[^<>].*$)
Where [<>]
means any of <
or >
and [^<>]
means any that is not of <
or >
.
And of course the mandatory link.
Small answer:
onInterceptTouchEvent comes before setOnTouchListener.
BTW, without JQuery this could also be done, but obviously it's pretty ugly as it only considers IE/non-IE:
if(isie)
tmpobject.setAttribute('onclick',(new Function(tmp.nextSibling.getAttributeNode('onclick').value)));
else
$(tmpobject).attr('onclick',tmp.nextSibling.attributes[0].value); //this even supposes index
Anyway, just so that people have an overall idea of what can be done, as I'm sure many have stumbled upon this annoyance.
If you're using spritesheets this becomes impossible and the element must be wrapped.
.btn{
display: inline-block;
background: blue;
position: relative;
border-radius: 5px;
}
.input, .btn:after{
color: #fff;
}
.btn:after{
position: absolute;
content: '@';
right: 0;
width: 1.3em;
height: 1em;
}
.input{
background: transparent;
color: #fff;
border: 0;
padding-right: 20px;
cursor: pointer;
position: relative;
padding: 5px 20px 5px 5px;
z-index: 1;
}
Check out this fiddle: http://jsfiddle.net/AJNnZ/
use:
$scope.users.length;
Instead of:
$scope.users.lenght;
And next time "spell-check" your code.
Use below CSS property
overscroll-behavior: contain;
to child element
To get class name you can use ReflectionClass
class MyClass {
public function myNameIs(){
return (new \ReflectionClass($this))->getShortName();
}
}
You can also use this method:
<input type="text" class="@(@mvccondition ? "true-class" : "false-class")">
Try this .. Good luck Thanks.
forever module has a concept of multiple node.js servers, and can start, restart, stop and list currently running servers. It can also watch for changing files and restart node as needed.
Install it if you don't have it already:
npm install forever -g
After installing it, call the forever
command: use the -w
flag to watch file for changes:
forever -w ./my-script.js
In addition, you can watch directory and ignore patterns:
forever --watch --watchDirectory ./path/to/dir --watchIgnore *.log ./start/file
Probably @droidev approach is the correct one, but I just want to publish something a little bit different, which does basically the same job and doesn't require extension of the LayoutManager.
A NOTE here - this is gonna work well if your item (the one that you want to scroll on the top of the list) is visible on the screen and you just want to scroll it to the top automatically. It is useful when the last item in your list has some action, which adds new items in the same list and you want to focus the user on the new added items:
int recyclerViewTop = recyclerView.getTop();
int positionTop = recyclerView.findViewHolderForAdapterPosition(positionToScroll) != null ? recyclerView.findViewHolderForAdapterPosition(positionToScroll).itemView.getTop() : 200;
final int calcOffset = positionTop - recyclerViewTop;
//then the actual scroll is gonna happen with (x offset = 0) and (y offset = calcOffset)
recyclerView.scrollBy(0, offset);
The idea is simple: 1. We need to get the top coordinate of the recyclerview element; 2. We need to get the top coordinate of the view item that we want to scroll to the top; 3. At the end with the calculated offset we need to do
recyclerView.scrollBy(0, offset);
200 is just example hard coded integer value that you can use if the viewholder item doesn't exist, because that is possible as well.
As an addition to LukeP code for Web Forms users (not MVC) if you want to simplify the access in the code behind of your pages, just add the code below to a base page and derive the base page in all your pages:
Public Overridable Shadows ReadOnly Property User() As CustomPrincipal
Get
Return DirectCast(MyBase.User, CustomPrincipal)
End Get
End Property
So in your code behind you can simply access:
User.FirstName or User.LastName
What I'm missing in a Web Form scenario, is how to obtain the same behaviour in code not tied to the page, for example in httpmodules should I always add a cast in each class or is there a smarter way to obtain this?
Thanks for your answers and thank to LukeP since I used your examples as a base for my custom user (which now has User.Roles
, User.Tasks
, User.HasPath(int)
, User.Settings.Timeout
and many other nice things)
You could use multiple approaches and see if they converge to the same answer. Or grab some from the 'net. The Chudnovsky algorithm is usually used as a very fast method of calculating pi. http://www.craig-wood.com/nick/articles/pi-chudnovsky/
If I were to iterate nums = [1, 2, 3, 4, 5]
I would do
for i, num in enumerate(nums, start=1):
print(i, num)
Or get the length as l = len(nums)
for i in range(l):
print(i+1, nums[i])
How can I force division to be floating point in Python?
I have two integer values a and b, but I need their ratio in floating point. I know that a < b and I want to calculate a/b, so if I use integer division I'll always get 0 with a remainder of a.
How can I force c to be a floating point number in Python in the following?
c = a / b
What is really being asked here is:
"How do I force true division such that a / b
will return a fraction?"
In Python 3, to get true division, you simply do a / b
.
>>> 1/2
0.5
Floor division, the classic division behavior for integers, is now a // b
:
>>> 1//2
0
>>> 1//2.0
0.0
However, you may be stuck using Python 2, or you may be writing code that must work in both 2 and 3.
In Python 2, it's not so simple. Some ways of dealing with classic Python 2 division are better and more robust than others.
You can get Python 3 division behavior in any given module with the following import at the top:
from __future__ import division
which then applies Python 3 style division to the entire module. It also works in a python shell at any given point. In Python 2:
>>> from __future__ import division
>>> 1/2
0.5
>>> 1//2
0
>>> 1//2.0
0.0
This is really the best solution as it ensures the code in your module is more forward compatible with Python 3.
If you don't want to apply this to the entire module, you're limited to a few workarounds. The most popular is to coerce one of the operands to a float. One robust solution is a / (b * 1.0)
. In a fresh Python shell:
>>> 1/(2 * 1.0)
0.5
Also robust is truediv
from the operator
module operator.truediv(a, b)
, but this is likely slower because it's a function call:
>>> from operator import truediv
>>> truediv(1, 2)
0.5
Commonly seen is a / float(b)
. This will raise a TypeError if b is a complex number. Since division with complex numbers is defined, it makes sense to me to not have division fail when passed a complex number for the divisor.
>>> 1 / float(2)
0.5
>>> 1 / float(2j)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: can't convert complex to float
It doesn't make much sense to me to purposefully make your code more brittle.
You can also run Python with the -Qnew
flag, but this has the downside of executing all modules with the new Python 3 behavior, and some of your modules may expect classic division, so I don't recommend this except for testing. But to demonstrate:
$ python -Qnew -c 'print 1/2'
0.5
$ python -Qnew -c 'print 1/2j'
-0.5j
While the project was in debug mode, the solution was not. When I changed it, it worked.
$no_of_digit = 10;
$number = 123;
$length = strlen((string)$number);
for($i = $length;$i<$no_of_digit;$i++)
{
$number = '0'.$number;
}
echo $number; /////// result 0000000123
I don't know why nobody mentioned that but you can also do this, it works for me
textbox.Select(0, textbox.Text.Length)
The recommended way to create random integers with NumPy these days is to use numpy.random.Generator.integers
. (documentation)
import numpy as np
import pandas as pd
rng = np.random.default_rng()
df = pd.DataFrame(rng.integers(0, 100, size=(100, 4)), columns=list('ABCD'))
df
----------------------
A B C D
0 58 96 82 24
1 21 3 35 36
2 67 79 22 78
3 81 65 77 94
4 73 6 70 96
... ... ... ... ...
95 76 32 28 51
96 33 68 54 77
97 76 43 57 43
98 34 64 12 57
99 81 77 32 50
100 rows × 4 columns
Map<String, Object> config = gson.fromJson(reader, Map.class);
My solution was to avoid using NOW()
when writing sql with your programming language, and substitute with a string. The problem with NOW()
as you indicate is it includes current time. So to capture from the beginning of the query day (0 hour and minute) instead of:
r.date <= DATE_SUB(NOW(), INTERVAL 99 DAY)
I did (php):
$current_sql_date = date('Y-m-d 00:00:00');
in the sql:
$sql_x = "r.date <= DATE_SUB('$current_sql_date', INTERVAL 99 DAY)"
With that, you will be retrieving data from midnight of the given day
This started happening to my site after I enabled namespace and custom Open Graph actions and objects. Once you enable it, you lose support for standard object types such as bar, or in my case article. (or it's possible Facebook may have deprecated certain types, I'm not 100% sure) When no supported type is specified, Facebook defaults to website.
To fix this what you need to do is go into your app dashboard, select your app, then go to the Open Graph section. Under "Object Types", define your own types, such as "bar."
Next you will have to change your meta tags to look like this:
<meta property="og:type" content="your_namespace:your_object_type" />
If you click on "Get Code" next to the object type in the dashboard, Facebook will provide you with an example of meta tags to use.
%S
seems to conform to The Single Unix Specification v2 and is also part of the current (2008) POSIX specification.
Equivalent C99 conforming format specifiers would be %s
and %ls
.
don't forget to close and start the terminal window again ;)
(at least if you want to check "npm --version" in the terminal)
sudo npm install npm -g
that did the trick for me, too
Try this
class Program
{
static void Main(string[] args)
{
getfiles get = new getfiles();
List<string> files = get.GetAllFiles(@"D:\Rishi");
foreach(string f in files)
{
Console.WriteLine(f);
}
Console.Read();
}
}
class getfiles
{
public List<string> GetAllFiles(string sDirt)
{
List<string> files = new List<string>();
try
{
foreach (string file in Directory.GetFiles(sDirt))
{
files.Add(file);
}
foreach (string fl in Directory.GetDirectories(sDirt))
{
files.AddRange(GetAllFiles(fl));
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return files;
}
}
Two ways:
Use indexes:
double sum = 0;
for(int i = 0; i < m.size(); i++)
sum += m.get(i);
return sum;
Use the "for each" style:
double sum = 0;
for(Double d : m)
sum += d;
return sum;
Use the shift
method on array
>> x = [4,5,6]
=> [4, 5, 6]
>> x.shift
=> 4
>> x
=> [5, 6]
If you want to remove n starting elements you can use x.shift(n)
You have a typo - it is trustStore
.
Apart from setting the variables with System.setProperty(..)
, you can also use
-Djavax.net.ssl.keyStore=path/to/keystore.jks
XAMPP and WAMP are both web server applications for PHP and MYSQL with the apache server. When we consider IIS, it also a web-server like apache runs on windows only.
XWAMPP/WAMP - Windows,Apache,Mysql,PHP
IIS - Apache,SQL Server, ASP.NET
If you like to read more about XWAMPP vs WAMP
To rotate, you can use key frames and a transform.
div {
margin: 20px;
width: 100px;
height: 100px;
background: #f00;
-webkit-animation-name: spin;
-webkit-animation-duration: 40000ms;
-webkit-animation-iteration-count: infinite;
-webkit-animation-timing-function: linear;
-moz-animation-name: spin;
-moz-animation-duration: 40000ms;
-moz-animation-iteration-count: infinite;
-moz-animation-timing-function: linear;
-ms-animation-name: spin;
-ms-animation-duration: 40000ms;
-ms-animation-iteration-count: infinite;
-ms-animation-timing-function: linear;
}
@-webkit-keyframes spin {
from {
-webkit-transform:rotate(0deg);
}
to {
-webkit-transform:rotate(360deg);
}
}
Step by step self explaining commands for update of feature branch with the latest code from origin "develop" branch:
git checkout develop
git pull -p
git checkout feature_branch
git merge develop
git push origin feature_branch
The OP says, for unknown reasons, "I prefer it without an arraylist or list."
If the type you are referring to is a primitive (you mention integers, but you don't say if you mean int
or Integer
), then you can use one of the NIO Buffer classes like java.nio.IntBuffer
. These act a lot like StringBuffer
does - they act as buffers for a list of the primitive type (buffers exist for all the primitives but not for Objects), and you can wrap a buffer around an array and/or extract an array from a buffer.
Note that the javadocs say, "The capacity of a buffer is never negative and never changes." It's still just a wrapper around an array, but one that's nicer to work with. The only way to effectively expand a buffer is to allocate()
a larger one and use put()
to dump the old buffer into the new one.
If it's not a primitive, you should probably just use List
, or come up with a compelling reason why you can't or won't, and maybe somebody will help you work around it.
Warning: Don't do this if you've already pushed
You want to do:
git reset HEAD~
If you don't want the changes and blow everything away:
git reset --hard HEAD~
A possible workaround for the page title:
document.title = "Print page title"; window.print();
This should work in every browser.
Your "scary" solution does not appear scary to me. Calling shuffle()
for two sequences of the same length results in the same number of calls to the random number generator, and these are the only "random" elements in the shuffle algorithm. By resetting the state, you ensure that the calls to the random number generator will give the same results in the second call to shuffle()
, so the whole algorithm will generate the same permutation.
If you don't like this, a different solution would be to store your data in one array instead of two right from the beginning, and create two views into this single array simulating the two arrays you have now. You can use the single array for shuffling and the views for all other purposes.
Example: Let's assume the arrays a
and b
look like this:
a = numpy.array([[[ 0., 1., 2.],
[ 3., 4., 5.]],
[[ 6., 7., 8.],
[ 9., 10., 11.]],
[[ 12., 13., 14.],
[ 15., 16., 17.]]])
b = numpy.array([[ 0., 1.],
[ 2., 3.],
[ 4., 5.]])
We can now construct a single array containing all the data:
c = numpy.c_[a.reshape(len(a), -1), b.reshape(len(b), -1)]
# array([[ 0., 1., 2., 3., 4., 5., 0., 1.],
# [ 6., 7., 8., 9., 10., 11., 2., 3.],
# [ 12., 13., 14., 15., 16., 17., 4., 5.]])
Now we create views simulating the original a
and b
:
a2 = c[:, :a.size//len(a)].reshape(a.shape)
b2 = c[:, a.size//len(a):].reshape(b.shape)
The data of a2
and b2
is shared with c
. To shuffle both arrays simultaneously, use numpy.random.shuffle(c)
.
In production code, you would of course try to avoid creating the original a
and b
at all and right away create c
, a2
and b2
.
This solution could be adapted to the case that a
and b
have different dtypes.
The main answer is to use File objects. However Commons IO does have a class FilenameUtils that can do this kind of thing, such as the concat() method.
Use Projections to specify which columns you would like to return.
Example
SQL Query
SELECT user.id, user.name FROM user;
Hibernate Alternative
Criteria cr = session.createCriteria(User.class)
.setProjection(Projections.projectionList()
.add(Projections.property("id"), "id")
.add(Projections.property("Name"), "Name"))
.setResultTransformer(Transformers.aliasToBean(User.class));
List<User> list = cr.list();
I was also following the instructions on http://developer.android.com/training/basics/actionbar/setting-up.html
and even though I did everything in the tutorial, as soon as "extends Action" is changed to "extends ActionBarActivity" all sorts of errors appear in Eclipse, including the "ActionBarActivitycannot be resolved to a type"
None of the above solutions worked for me, but what did work is adding this line to the top:
import android.support.v7.app.ActionBarActivity;
For those wanting to explicitly declare they are pulling from dockerhub when using fabric8 maven plugin, add a new property: <docker.pull.registry>registry.hub.docker.com/library</docker.pull.registry>
I arrived on this page trying to solve problem of pulling from my AWS ECR registry when building Docker images using fabric8.
The standard solution didn't work for me, when changing the type from TEXT to LONGTEXT.
I had to it like this:
public function up()
{
DB::statement('ALTER TABLE mytable MODIFY mycolumn LONGTEXT;');
}
public function down()
{
DB::statement('ALTER TABLE mytable MODIFY mycolumn TEXT;');
}
This could be a Doctrine issue. More information here.
Another way to do it is to use the string() method, and set the value to the text type max length:
Schema::table('mytable', function ($table) {
// Will set the type to LONGTEXT.
$table->string('mycolumn', 4294967295)->change();
});
Some other ideas not mentioned yet:
switch(true){
case in_array($p, array('home', '')):
$current_home = 'current'; break;
case preg_match('/^users\.(online|location|featured|new|browse|search|staff)$/', $p):
$current_users = 'current'; break;
case 'forum' == $p:
$current_forum = 'current'; break;
}
Someone will probably complain about readability issues with #2, but I would have no problem inheriting code like that.
There's a very easy way if you were using a web application just follow this link.
just do in eclipse :
File > import > web > war file
Then select the war file of your app :)) very easy !!
The name accepted into TR1 (and the draft for the next standard) is std::unordered_map
, so if you have that available, it's probably the one you want to use.
Other than that, using it is a lot like using std::map
, with the proviso that when/if you traverse the items in an std::map
, they come out in the order specified by operator<
, but for an unordered_map, the order is generally meaningless.
There is no difference ...
So principially you could use both (one at a time !-)
But for the sake of readability and for the cleanliness of the html-code I always prefer the window.onload !o]
This worked for me on macOS Sierra and Python 2.7.10 and 3.6.3
import sys,tty,os,termios
def getkey():
old_settings = termios.tcgetattr(sys.stdin)
tty.setcbreak(sys.stdin.fileno())
try:
while True:
b = os.read(sys.stdin.fileno(), 3).decode()
if len(b) == 3:
k = ord(b[2])
else:
k = ord(b)
key_mapping = {
127: 'backspace',
10: 'return',
32: 'space',
9: 'tab',
27: 'esc',
65: 'up',
66: 'down',
67: 'right',
68: 'left'
}
return key_mapping.get(k, chr(k))
finally:
termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_settings)
try:
while True:
k = getkey()
if k == 'esc':
quit()
else:
print(k)
except (KeyboardInterrupt, SystemExit):
os.system('stty sane')
print('stopping.')
To bind socket with localhost, before you invoke the bind function, sin_addr.s_addr field of the sockaddr_in structure should be set properly. The proper value can be obtained either by
my_sockaddress.sin_addr.s_addr = inet_addr("127.0.0.1")
or by
my_sockaddress.sin_addr.s_addr=htonl(INADDR_LOOPBACK);
Try this:
.main_div{
display: table;
width: 100%;
}
.cells {
display: table-cell;
vertical-align: middle;
}
Another method for centering a div:
<div id="parent">
<div id="child">Content here</div>
</div>
#parent {position: relative;}
#child {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
width: 50px;
height: 100px;
margin: auto;
}
Look your class or id. Perhaps Like This $("#resi_result").html(''); This should work:
The INotifyPropertyChanged
interface is implemented with events. The interface has just one member, PropertyChanged
, which is an event that consumers can subscribe to.
The version that Richard posted is not safe. Here is how to safely implement this interface:
public class MyClass : INotifyPropertyChanged
{
private string imageFullPath;
protected void OnPropertyChanged(PropertyChangedEventArgs e)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null)
handler(this, e);
}
protected void OnPropertyChanged(string propertyName)
{
OnPropertyChanged(new PropertyChangedEventArgs(propertyName));
}
public string ImageFullPath
{
get { return imageFullPath; }
set
{
if (value != imageFullPath)
{
imageFullPath = value;
OnPropertyChanged("ImageFullPath");
}
}
}
public event PropertyChangedEventHandler PropertyChanged;
}
Note that this does the following things:
Abstracts the property-change notification methods so you can easily apply this to other properties;
Makes a copy of the PropertyChanged
delegate before attempting to invoke it (failing to do this will create a race condition).
Correctly implements the INotifyPropertyChanged
interface.
If you want to additionally create a notification for a specific property being changed, you can add the following code:
protected void OnImageFullPathChanged(EventArgs e)
{
EventHandler handler = ImageFullPathChanged;
if (handler != null)
handler(this, e);
}
public event EventHandler ImageFullPathChanged;
Then add the line OnImageFullPathChanged(EventArgs.Empty)
after the line OnPropertyChanged("ImageFullPath")
.
Since we have .Net 4.5 there exists the CallerMemberAttribute
, which allows to get rid of the hard-coded string for the property name in the source code:
protected void OnPropertyChanged(
[System.Runtime.CompilerServices.CallerMemberName] string propertyName = "")
{
OnPropertyChanged(new PropertyChangedEventArgs(propertyName));
}
public string ImageFullPath
{
get { return imageFullPath; }
set
{
if (value != imageFullPath)
{
imageFullPath = value;
OnPropertyChanged();
}
}
}
This may not solve all of your problems, but the variable you are using inside your function (text) is not the same as the parameter you are passing in (x).
Changing:
function textreplace(x) {
return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
}
To:
function textreplace(text) {
return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
}
seems like it would do some good.
On Bootstrap 4, and if you don't want to change all tooltips width, you can use specific template for the tooltip you want :
<a href="/link" class="btn btn-info"
data-toggle="tooltip"
data-placement="bottom"
data-template="<div class='tooltip' role='tooltip'><div class='arrow'></div><div class='tooltip-inner' style='max-width: 400px;'></div></div>"
title="This is a long message displayed on 400px width tooltip !"
>
My button label
</a>
CASE
is more like a switch statement. It has two syntaxes you can use. The first lets you use any compare statements you want:
CASE
WHEN user_role = 'Manager' then 4
WHEN user_name = 'Tom' then 27
WHEN columnA <> columnB then 99
ELSE -1 --unknown
END
The second style is for when you are only examining one value, and is a little more succinct:
CASE user_role
WHEN 'Manager' then 4
WHEN 'Part Time' then 7
ELSE -1 --unknown
END
I found information about .bashrc and .bash_profile here to sum it up:
.bash_profile is executed when you login. Stuff you put in there might be your PATH and other important environment variables.
.bashrc is used for non login shells. I'm not sure what that means. I know that RedHat executes it everytime you start another shell (su to this user or simply calling bash again) You might want to put aliases in there but again I am not sure what that means. I simply ignore it myself.
.profile is the equivalent of .bash_profile for the root. I think the name is changed to let other shells (csh, sh, tcsh) use it as well. (you don't need one as a user)
There is also .bash_logout wich executes at, yeah good guess...logout. You might want to stop deamons or even make a little housekeeping . You can also add "clear" there if you want to clear the screen when you log out.
Also there is a complete follow up on each of the configurations files here
These are probably even distro.-dependant, not all distros choose to have each configuraton with them and some have even more. But when they have the same name, they usualy include the same content.
As others said your Firewall needs to be configured to accept incoming calls on TCP Port 80.
in win 7+ (easy wizardry way)
Because outbound traffic(from server to outside world) is allowed by default .it means for example http responses that web server is sending back to outside users and requests
But inbound traffic (originating from outside world to the server) is blocked by default like the user web requests originating from their browser which cannot reach the web server by default and you must open it.
You can also take a closer look at inbound and outbound rules at this page
Seems like an old question but still relevant.
I think it is a blocked update issue.
The main problem is the new URL (route) is supposed to be rendered by the same component(Costumers
) as you are currently in (current URL).
So solution is rather simple, make the window url as a prop, so react has a chance to detect the prop change (therefore the url change), and act accordingly.
A nice usecase described in the official react blog called Recommendation: Fully uncontrolled component with a key.
So the solution is to change from
render() {
return(
<ul>
to
render() {
return(
<ul key={this.props.location.pathname}>
So whenever the location changed by react-router, the component got scrapped (by react) and a new one gets initiated with the right values (by react).
Oh, and pass the location
as prop to the component(Costumers
) where the redirect will happen if it is not passed already.
Hope it helps someone.
You could try using HTML5s sessionStorage it lasts for the duration on the page session. A page session lasts for as long as the browser is open and survives over page reloads and restores. Opening a page in a new tab or window will cause a new session to be initiated.
sessionStorage.setItem("username", "John");
https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Storage#sessionStorage
Browser Compatibility https://code.google.com/p/sessionstorage/ compatible with every A-grade browser, included iPhone or Android. http://www.nczonline.net/blog/2009/07/21/introduction-to-sessionstorage/
I'm not fine with solutions that iterates over a collection and inside the loop manipulating the content of even that collection. This can result in unexpected behaviour.
See also here: https://stackoverflow.com/a/2304578/655224 and in a comment the given link http://php.net/manual/en/control-structures.foreach.php#88578
So, when using foreach
if seems to be OK but IMHO the much more readable and simple solution is to filter your collection to a new one.
/**
* Filter all `selected` items
*
* @link https://laravel.com/docs/7.x/collections#method-filter
*/
$selected = $collection->filter(function($value, $key) {
return $value->selected;
})->toArray();
I think that the the align="center"
aligns the content, so if you wanted to use that method, you would need to use it in a 'wraper' div - a div that just wraps the rest.
text-align
is doing a similar sort of thing.
left:50%
is ignored unless you set the div's position to be something like relative or absolute.
The generally accepted methods is to use the following properties
width:500px; // this can be what ever unit you want, you just have to define it
margin-left:auto;
margin-right:auto;
the margins being auto means they grow/shrink to match the browser window (or parent div)
UPDATE
Thanks to Meo for poiting this out, if you wanted to you could save time and use the short hand propery for the margin.
margin:0 auto;
this defines the top and bottom as 0 (as it is zero it does not matter about lack of units) and the left and right get defined as 'auto' You can then, if you wan't override say the top margin as you would with any other CSS rules.
Simple and precise (Source: Socket.IO google group):
socket.emit
allows you to emit custom events on the server and client
socket.send
sends messages which are received with the 'message'
event
I replaced the typedef
(using
to be specific) with inheritance and constructor inheritance (?).
Original
using CallStack = std::array<StackFrame, MAX_CALLSTACK_DEPTH>;
Replaced
struct CallStack // Not a typedef to allow forward declaration.
: public std::array<StackFrame, MAX_CALLSTACK_DEPTH>
{
typedef std::array<StackFrame, MAX_CALLSTACK_DEPTH> Base;
using Base::Base;
};
This way I was able to forward declare CallStack
with:
class CallStack;
What about if we use String.Format here
DateTime today = DateTime.Today;_x000D_
String.Format("{0:dd-MM}, {1:dddd}", today, today) //In dd-MM format_x000D_
String.Format("{0:MM-dd}, {1:dddd}", today, today) //In MM-dd format
_x000D_
Try the following:
var filteredFileSet = fileList.Where(item => filterList.Contains(item));
When you iterate over filteredFileSet (See LINQ Execution) it will consist of a set of IEnumberable values. This is based on the Where Operator checking to ensure that items within the fileList data set are contained within the filterList set.
As fileList is an IEnumerable set of string values, you can pass the 'item' value directly into the Contains method.
If all else fails you can also use
"My text needs a line break here" + System.Environment.NewLine + " This should be a new line"
Basically this happens when the assemblies you're referencing have "Copy Local" set to "True", meaning that a copy of the DLL is placed in the bin folder along with your exe.
Since Visual Studio will copy all of the dependencies of a referenced assembly as well, it's possible to end up with two different builds of the same assembly being referred to. This is more likely to happen if your projects are in separate solutions, and can therefore be compiled separately.
The way I've gotten around it is to set Copy Local to False for references in assembly projects. Only do it for executables/web applications where you need the assembly for the finished product to run.
Hope that makes sense!
This might have changed since the original answer was written, but it looks like you can now use the Models populate function to do this without having to execute an extra findOne. See: http://mongoosejs.com/docs/api.html#model_Model.populate. You'd want to use this inside the save handler just like the findOne is.
The problem: The format of the file as to how it is saved.
Use a proper text editor and save it with the .py
extension
and run it in terminal.
eg: file name should be saved as `example.py`
run
python example
Some thing in the similar vein, I would add one other step.
Note that on npm version > 1.4.9, 'npm install' does install devDependencies. First try removing existing modules and cache:
remove node_modules $ rm -rf node_modules/
run $ npm cache clean
Then try:
npm install --dev
npm update --dev
This at least will resolve the recursive dependency resolution.
The correct syntax is described in the manual. Try this:
INSERT INTO this_table_archive (col1, col2, ..., coln)
SELECT col1, col2, ..., coln
FROM this_table
WHERE entry_date < '2011-01-01 00:00:00';
If the id columns is an auto-increment column and you already have some data in both tables then in some cases you may want to omit the id from the column list and generate new ids instead to avoid insert an id that already exists in the original table. If your target table is empty then this won't be an issue.
If you use a Custom format, rather than one of the pre-selected Date formats, the export to CSV will keep your selected format. Otherwise it defaults back to the US format
please, something went xxx*x, and that's not true at all, check that
JButton Size - java.awt.Dimension[width=400,height=40]
JPanel Size - java.awt.Dimension[width=640,height=480]
JFrame Size - java.awt.Dimension[width=646,height=505]
code (basic stuff from Trail: Creating a GUI With JFC/Swing , and yet I still satisfied that that would be outdated )
EDIT: forget setDefaultCloseOperation()
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class FrameSize {
private JFrame frm = new JFrame();
private JPanel pnl = new JPanel();
private JButton btn = new JButton("Get ScreenSize for JComponents");
public FrameSize() {
btn.setPreferredSize(new Dimension(400, 40));
btn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.out.println("JButton Size - " + btn.getSize());
System.out.println("JPanel Size - " + pnl.getSize());
System.out.println("JFrame Size - " + frm.getSize());
}
});
pnl.setPreferredSize(new Dimension(640, 480));
pnl.add(btn, BorderLayout.SOUTH);
frm.add(pnl, BorderLayout.CENTER);
frm.setLocation(150, 100);
frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // EDIT
frm.setResizable(false);
frm.pack();
frm.setVisible(true);
}
public static void main(String[] args) {
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
FrameSize fS = new FrameSize();
}
});
}
}
Based in the answer of @G M and paying attention to the @John La Rooy's warning, I was able to append a new row opening the file in 'a'
mode.
Even in windows, in order to avoid the newline problem, you must declare it as
newline=''
.Now you can open the file in
'a'
mode (without the b).
import csv
with open(r'names.csv', 'a', newline='') as csvfile:
fieldnames = ['This','aNew']
writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
writer.writerow({'This':'is', 'aNew':'Row'})
I didn't try with the regular writer (without the Dict), but I think that it'll be ok too.
If your rows are not equal you can also use map
:
>>> uneven = [['a','b','c'],['d','e'],['g','h','i']]
>>> map(None,*uneven)
[('a', 'd', 'g'), ('b', 'e', 'h'), ('c', None, 'i')]
Edit: In Python 3 the functionality of map
changed, itertools.zip_longest
can be used instead:
Source: What’s New In Python 3.0
>>> import itertools
>>> uneven = [['a','b','c'],['d','e'],['g','h','i']]
>>> list(itertools.zip_longest(*uneven))
[('a', 'd', 'g'), ('b', 'e', 'h'), ('c', None, 'i')]
i think, simply camera not initialize in first frame. Try to save image after 10 frames.
This may not apply to many of you, but I'm usually operating my computers under Linux, so by default I save my matplotlib plots as PNG and SVG. This works fine under Linux but is unbearably slow on my Windows 7 installations [MiKTeX under Python(x,y) or Anaconda], so I've taken to adding this code, and things work fine over there again:
import platform # Don't save as SVG if running under Windows.
#
# Plot code goes here.
#
fig.savefig('figure_name.png', dpi = 200)
if platform.system() != 'Windows':
# In my installations of Windows 7, it takes an inordinate amount of time to save
# graphs as .svg files, so on that platform I've disabled the call that does so.
# The first run of a script is still a little slow while everything is loaded in,
# but execution times of subsequent runs are improved immensely.
fig.savefig('figure_name.svg')
I don't know what happened with my project but it referenced the wrong path to the DLL. Nuget installed it properly and it was indeed on my file system along with the other packages but just referenced incorrectly.
The packages
folder exists two directories up from my project and it was only going up one by starting the path with ..\packages\
. I changed the path to start with ..\..\packages\
and it fixed my problem.
From MSDN: SqlCommand.ExecuteNonQuery Method
You can use the ExecuteNonQuery to perform catalog operations (for example, querying the structure of a database or creating database objects such as tables), or to change the data in a database without using a DataSet by executing UPDATE, INSERT, or DELETE statements.
Although the ExecuteNonQuery returns no rows, any output parameters or return values mapped to parameters are populated with data.
For UPDATE, INSERT, and DELETE statements, the return value is the number of rows affected by the command. When a trigger exists on a table being inserted or updated, the return value includes the number of rows affected by both the insert or update operation and the number of rows affected by the trigger or triggers. For all other types of statements, the return value is -1. If a rollback occurs, the return value is also -1.
You are using SELECT query, thus you get -1
You can try this code:
USE AdventureWorks2012;
GO
SET STATISTICS TIME ON;
GO
SELECT ProductID, StartDate, EndDate, StandardCost
FROM Production.ProductCostHistory
WHERE StandardCost < 500.00;
GO
SET STATISTICS TIME OFF;
GO
var month = new Date().getMonth();
var newmon = month + 1;
$('#month').html((newmon < 10 ? '0' : '') + newmon );
I simply fixed your month issue, getMonth array start from 0 to 11.
In order to navigate to a different drive just use
cd /E/Study/Codes
It will solve your problem.
var elm = document.createElement("div");
var jelm = $(elm);//convert to jQuery Element
var htmlElm = jelm[0];//convert to HTML Element
The best solution if you don't care about staging modified files is to use git add -u
as said by mshameers and/or pb2q.
If you just want to remove deleted files, but not stage any modified ones, I think you should use the ls-files
argument with the --deleted
option (no need to use regex or other complex args/options) :
git ls-files --deleted | xargs git rm
You can use any one of the below methods
If you are using java.text.DecimalFormat
DecimalFormat decimalFormat = NumberFormat.getCurrencyInstance();
decimalFormat.setMinimumFractionDigits(2);
System.out.println(decimalFormat.format(4.0));
OR
DecimalFormat decimalFormat = new DecimalFormat("#0.00");
System.out.println(decimalFormat.format(4.0));
If you want to convert it into simple string format
System.out.println(String.format("%.2f", 4.0));
All the above code will print 4.00
I agree with Laura and the SimpleDateFormat which is the best way to manage Dates in java. You can set the pattern and the locale. Plus you can have a look at this wikipedia article about Date in the world -there are not so many different ways to use it; typically USA / China / rest of the world -
I faced same problem with background image and its child components including logo images. After wasting few hours, I found the correct way to solve this problem. This is surely helped to you.
var {View, Text, Image, ImageBackground} = require('react-native');
import Images from '@assets';
export default class Welcome extends Component {
render() {
return (
<ImageBackground source={Images.main_bg} style={styles.container}>
<View style={styles.markWrap}>
<Image source={Images.main_logo}
style={styles.mark} resizeMode="contain" />
</View>
<View style={[styles.wrapper]}>
{//Here put your other components}
</View>
</ImageBackground>
);
}
}
var styles = StyleSheet.create({
container:{
flex: 1,
},
markWrap: {
flex: 1,
marginTop: 83,
borderWidth:1, borderColor: "green"
},
mark: {
width: null,
height: null,
flex: 1,
},
wrapper:{
borderWidth:1, borderColor: "green",///for debug
flex: 1,
position:"relative",
},
}
(PS: I put on the dummy image on this screen instead of real company logo.)
I will not prefer to center just using video tag as @user142019 says. I will prefer doing it like this:
.videoDiv_x000D_
{_x000D_
width: 70%; /*or whatever % you prefer*/_x000D_
margin: 0 auto;_x000D_
display: block;_x000D_
}
_x000D_
<div class="videoDiv">_x000D_
<video width="100%" controls>_x000D_
<source src="https://www.w3schools.com/html/mov_bbb.mp4" type="video/mp4">_x000D_
<source src="https://www.w3schools.com/html/mov_bbb.ogg" type="video/ogg">_x000D_
Your browser does not support the video tag._x000D_
</video>_x000D_
</div>
_x000D_
This will make your video responsive at the same time the panel for controls will have the same size as the video rectangle (I tried what @user142019 says and the video was centered, but it looked ugly in Google Chrome).
My issue was that end users would start typing in a textbox and receive autocomplete (ACP) suggestions and update the calling control if a suggestion was selected as the ACP is designed by default. However, I also needed to update multiple other controls (textboxes, DropDowns, etc...) with data specific to the end user's selection. I have been trying to figure out an elegant solution to the issue and I feel the one I developed is worth sharing and hopefully will save you at least some time.
WebMethod (SampleWM.aspx):
PURPOSE:
NOTES:
//Call to custom function to return SP results as a DataTable
// DataTable will consist of Field0 - Field5
Dim params As ArrayList = New ArrayList
params.Add("@QueryFilter|" & QueryFilter)
Dim dt As DataTable = Data.GetDataTableFromSP("AutoComplete", params, [ConnStr])
//Create a StringBuilder Obj to hold the JSON
//IE: [{"Field0":"0","Field1":"Test","Field2":"Jason","Field3":"Smith","Field4":"32","Field5":"888-555-1212"},{"Field0":"1","Field1":"Test2","Field2":"Jane","Field3":"Doe","Field4":"25","Field5":"888-555-1414"}]
Dim jStr As StringBuilder = New StringBuilder
//Loop the DataTable and convert row into JSON String
If dt.Rows.Count > 0 Then
jStr.Append("[")
Dim RowCnt As Integer = 1
For Each r As DataRow In dt.Rows
jStr.Append("{")
Dim ColCnt As Integer = 0
For Each c As DataColumn In dt.Columns
If ColCnt = 0 Then
jStr.Append("""" & c.ColumnName & """:""" & r(c.ColumnName) & """")
Else
jStr.Append(",""" & c.ColumnName & """:""" & r(c.ColumnName) & """")
End If
ColCnt += 1
Next
If Not RowCnt = dt.Rows.Count Then
jStr.Append("},")
Else
jStr.Append("}")
End If
RowCnt += 1
Next
jStr.Append("]")
End If
//Return JSON to WebMethod Caller
Return jStr.ToString
AutoComplete jQuery (AutoComplete.aspx):
$(function() {
$("#LookUp").autocomplete({
source: function (request, response) {
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "SampleWM.aspx/GetAutoCompleteData",
dataType: "json",
data:'{QueryFilter: "' + request.term + '"}',
success: function (data) {
response($.map($.parseJSON(data.d), function (item) {
var AC = new Object();
//autocomplete default values REQUIRED
AC.label = item.Field0;
AC.value = item.Field1;
//extend values
AC.FirstName = item.Field2;
AC.LastName = item.Field3;
AC.Age = item.Field4;
AC.Phone = item.Field5;
return AC
}));
}
});
},
minLength: 3,
select: function (event, ui) {
$("#txtFirstName").val(ui.item.FirstName);
$("#txtLastName").val(ui.item.LastName);
$("#ddlAge").val(ui.item.Age);
$("#txtPhone").val(ui.item.Phone);
}
});
});
man you can use the basic Bootstrap Datepicker this way:
<!DOCTYPE html>
<head runat="server">
<title>Test Zone</title>
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css"/>
<link rel="stylesheet" type="text/css" href="Css/datepicker.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script src="../Js/bootstrap-datepicker.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$('#pickyDate').datepicker({
format: "dd/mm/yyyy"
});
});
</script>
and inside body:
<body>
<div id="testDIV">
<div class="container">
<div class="hero-unit">
<input type="text" placeholder="click to show datepicker" id="pickyDate"/>
</div>
</div>
</div>
datepicker.css and bootstrap-datepicker.js you can download from here on the Download button below "About" on the left side. Hope this help someone, greetings.
xhr.file = file;
; the file object is not supposed to be attached this way.xhr.send(file)
doesn't send the file. You have to use the FormData
object to wrap the file into a multipart/form-data
post data object:
var formData = new FormData();
formData.append("thefile", file);
xhr.send(formData);
After that, the file can be access in $_FILES['thefile']
(if you are using PHP).
Remember, MDC and Mozilla Hack demos are your best friends.
EDIT: The (2) above was incorrect. It does send the file, but it would send it as raw post data. That means you would have to parse it yourself on the server (and it's often not possible, depend on server configuration). Read how to get raw post data in PHP here.
To write a script that is secure to be run as either a shell script or sourced as an rc file, the script can check and compare $0
and $BASH_SOURCE
and determine if exit
can be safely used.
Here is a short code snippet for that
[ "X$(basename $0)" = "X$(basename $BASH_SOURCE)" ] && \
echo "***** executing $name_src as a shell script *****" || \
echo "..... sourcing $name_src ....."
I don't use commands. You should be able to do this using the GUI:
Visual Studio\Projects\{your project}
folder. Select OK.Yes, you need to have the header Access-Control-Allow-Origin: http://domain.com:3000
or Access-Control-Allow-Origin: *
on both the OPTIONS response and the POST response. You should include the header Access-Control-Allow-Credentials: true
on the POST response as well.
Your OPTIONS response should also include the header Access-Control-Allow-Headers: origin, content-type, accept
to match the requested header.
Well, you are close.
In SAX, events are triggered when the XML is being parsed. When the parser is parsing the XML, and encounters a tag starting (e.g. <something>
), then it triggers the tagStarted
event (actual name of event might differ). Similarly when the end of the tag is met while parsing (</something>
), it triggers tagEnded
. Using a SAX parser implies you need to handle these events and make sense of the data returned with each event.
In DOM, there are no events triggered while parsing. The entire XML is parsed and a DOM tree (of the nodes in the XML) is generated and returned. Once parsed, the user can navigate the tree to access the various data previously embedded in the various nodes in the XML.
In general, DOM is easier to use but has an overhead of parsing the entire XML before you can start using it.
Using ImageMagick, this is very similar to hackerb9 code and result, but is a little simpler command line. It does assume that the top left pixel is the background color. I just flood fill the background with transparency, then select the alpha channel and blur it and remove half of the blurred area using -level 50x100%. Then turn back on all the channels and flatten it against the brown color. The -blur 0x1 -level 50x100% acts to antialias the boundaries of the alpha channel transparency. You can adjust the fuzz value, blur amount and the -level 50% value to change the degree of antialiasing.
convert logo: -fuzz 25% -fill none -draw "matte 0,0 floodfill" -channel alpha -blur 0x1 -level 50x100% +channel -background saddlebrown -flatten result.jpg
If you are using Spyder in the Anaconda package...
In the IPython Console, use
!conda install packageName
This works locally too.
!conda install /path/to/package.tar
Note: the ! is required when using IPython console from within Spyder.
I had the same problem adn did not want this to be set globally, so I used the same TrustManager and SSLContext code as above, I just changed the Client to be created with special properties
ClientConfig config = new DefaultClientConfig();
config.getProperties().put(HTTPSProperties.PROPERTY_HTTPS_PROPERTIES, new HTTPSProperties(
new HostnameVerifier() {
@Override
public boolean verify( String s, SSLSession sslSession ) {
// whatever your matching policy states
}
}
));
Client client = Client.create(config);
The main difference between struts & spring MVC is about the difference between Aspect Oriented Programming (AOP) & Object oriented programming (OOP).
Spring makes application loosely coupled by using Dependency Injection.The core of the Spring Framework is the IoC container.
OOP can do everything that AOP does but different approach. In other word, AOP complements OOP by providing another way of thinking about program structure.
Practically, when you want to apply same changes for many files. It should be exhausted work with Struts to add same code for tons of files. Instead Spring write new changes somewhere else and inject to the files.
Some related terminologies of AOP is cross-cutting concerns, Aspect, Dependency Injection...
According to the doc about Run tests by node ids
since you have all node ids in foo.txt, just run
pytest `cat foo.txt | tr '\n' ' '`
this is same with below command (with file content in the question)
pytest tests_directory/foo.py::test_001 tests_directory/bar.py::test_some_other_test
The keys of a dictionary are unique. Thus, if one disregards the values in an ordered dictionary (e.g. by assigning them None
), then one has essentially an ordered set.
As of Python 3.1 and 2.7 there is collections.OrderedDict
. The following is an example implementation of an OrderedSet. (Note that only few methods need to be defined or overridden: collections.OrderedDict
and collections.MutableSet
do the heavy lifting.)
import collections
class OrderedSet(collections.OrderedDict, collections.MutableSet):
def update(self, *args, **kwargs):
if kwargs:
raise TypeError("update() takes no keyword arguments")
for s in args:
for e in s:
self.add(e)
def add(self, elem):
self[elem] = None
def discard(self, elem):
self.pop(elem, None)
def __le__(self, other):
return all(e in other for e in self)
def __lt__(self, other):
return self <= other and self != other
def __ge__(self, other):
return all(e in self for e in other)
def __gt__(self, other):
return self >= other and self != other
def __repr__(self):
return 'OrderedSet([%s])' % (', '.join(map(repr, self.keys())))
def __str__(self):
return '{%s}' % (', '.join(map(repr, self.keys())))
difference = __sub__
difference_update = __isub__
intersection = __and__
intersection_update = __iand__
issubset = __le__
issuperset = __ge__
symmetric_difference = __xor__
symmetric_difference_update = __ixor__
union = __or__
Similar to my other answer, except repeating the format string:
>>> numbers = [1, 15, 255]
>>> fmt = '{:02X}' * len(numbers)
>>> fmt.format(*numbers)
'010FFF'
The answers above check if a filesystem contains a path that is a file or directory. But it doesn't identify if a given path alone is a file or directory.
The answer is to identify directory-based paths using "/." like --> "/c/dos/run/." <-- trailing period.
Like a path of a directory or file that has not been written yet. Or a path from a different computer. Or a path where both a file and directory of the same name exists.
// /tmp/
// |- dozen.path
// |- dozen.path/.
// |- eggs.txt
//
// "/tmp/dozen.path" !== "/tmp/dozen.path/"
//
// Very few fs allow this. But still. Don't trust the filesystem alone!
// Converts the non-standard "path-ends-in-slash" to the standard "path-is-identified-by current "." or previous ".." directory symbol.
function tryGetPath(pathItem) {
const isPosix = pathItem.includes("/");
if ((isPosix && pathItem.endsWith("/")) ||
(!isPosix && pathItem.endsWith("\\"))) {
pathItem = pathItem + ".";
}
return pathItem;
}
// If a path ends with a current directory identifier, it is a path! /c/dos/run/. and c:\dos\run\.
function isDirectory(pathItem) {
const isPosix = pathItem.includes("/");
if (pathItem === "." || pathItem ==- "..") {
pathItem = (isPosix ? "./" : ".\\") + pathItem;
}
return (isPosix ? pathItem.endsWith("/.") || pathItem.endsWith("/..") : pathItem.endsWith("\\.") || pathItem.endsWith("\\.."));
}
// If a path is not a directory, and it isn't empty, it must be a file
function isFile(pathItem) {
if (pathItem === "") {
return false;
}
return !isDirectory(pathItem);
}
Node version: v11.10.0 - Feb 2019
Last thought: Why even hit the filesystem?
declare
z exception;
begin
if to_char(sysdate,'day')='sunday' then
raise z;
end if;
exception
when z then
dbms_output.put_line('to day is sunday');
end;
Class.forName("ClassName") will solve your purpose.
Class class1 = Class.forName(ClassName);
Object object1 = class1.newInstance();
your id attribute is not set. this MAY be due to the fact that the DB field is not set to auto increment? what DB are you using? MySQL? is your field set to AUTO INCREMENT?
I assume your game has a main loop, and all your sprites are in a list called sprites
.
In your main loop, get all events, and check for the MOUSEBUTTONDOWN
or MOUSEBUTTONUP
event.
while ... # your main loop
# get all events
ev = pygame.event.get()
# proceed events
for event in ev:
# handle MOUSEBUTTONUP
if event.type == pygame.MOUSEBUTTONUP:
pos = pygame.mouse.get_pos()
# get a list of all sprites that are under the mouse cursor
clicked_sprites = [s for s in sprites if s.rect.collidepoint(pos)]
# do something with the clicked sprites...
So basically you have to check for a click on a sprite yourself every iteration of the mainloop. You'll want to use mouse.get_pos() and rect.collidepoint().
Pygame does not offer event driven programming, as e.g. cocos2d does.
Another way would be to check the position of the mouse cursor and the state of the pressed buttons, but this approach has some issues.
if pygame.mouse.get_pressed()[0] and mysprite.rect.collidepoint(pygame.mouse.get_pos()):
print ("You have opened a chest!")
You'll have to introduce some kind of flag if you handled this case, since otherwise this code will print "You have opened a chest!" every iteration of the main loop.
handled = False
while ... // your loop
if pygame.mouse.get_pressed()[0] and mysprite.rect.collidepoint(pygame.mouse.get_pos()) and not handled:
print ("You have opened a chest!")
handled = pygame.mouse.get_pressed()[0]
Of course you can subclass Sprite
and add a method called is_clicked
like this:
class MySprite(Sprite):
...
def is_clicked(self):
return pygame.mouse.get_pressed()[0] and self.rect.collidepoint(pygame.mouse.get_pos())
So, it's better to use the first approach IMHO.
Did the trick for me. hope it works for you too.
Its working fine. But we will have to stop apache and mysql, We need to quit xampp and then delete file. when deleted successfully. now start xampp it will work properly..
Another approach
=CONCATENATE("Age as of ", TEXT(TODAY(),"dd-mmm-yyyy"))
This will return Age as of 06-Aug-2013
official Link of DB 2 JDBC Driver from IBM
Why not add "display: none;" to the divs style attribute? Thats all JQuery's .hide() function does.