Removes the HORIZONTAL scrollbar while ALLOWING for scroll and NOTHING more.
&::-webkit-scrollbar:horizontal {
height: 0;
width: 0;
display: none;
}
&::-webkit-scrollbar-thumb:horizontal {
display: none;
}
Below is an improvement over James Padolsey's solution:
1) It doesn't pollute memory (James' snippet creates 7 unremoved document fragments when detecting IE11, for example).
2) It's faster since it checks for a documentMode value before generating markup.
3) It's far more legible, especially to beginning JavaScript programmers.
Gist link: https://gist.github.com/julianshapiro/9098609
/*
- Behavior: For IE8+, we detect the documentMode value provided by Microsoft.
- Behavior: For <IE8, we inject conditional comments until we detect a match.
- Results: In IE, the version is returned. In other browsers, false is returned.
- Tip: To check for a range of IE versions, use if (!IE || IE < MAX_VERSION)...
*/
var IE = (function() {
if (document.documentMode) {
return document.documentMode;
} else {
for (var i = 7; i > 0; i--) {
var div = document.createElement("div");
div.innerHTML = "<!--[if IE " + i + "]><span></span><![endif]-->";
if (div.getElementsByTagName("span").length) {
return i;
}
}
}
return undefined;
})();
You need to use reflection to get the method to start with, then "construct" it by supplying type arguments with MakeGenericMethod:
MethodInfo method = typeof(Sample).GetMethod(nameof(Sample.GenericMethod));
MethodInfo generic = method.MakeGenericMethod(myType);
generic.Invoke(this, null);
For a static method, pass null
as the first argument to Invoke
. That's nothing to do with generic methods - it's just normal reflection.
As noted, a lot of this is simpler as of C# 4 using dynamic
- if you can use type inference, of course. It doesn't help in cases where type inference isn't available, such as the exact example in the question.
You cannot decrypt this password again but there is another method named "pwdcompare". Here is a example how to use it with SQL syntax:
USE TEMPDB
GO
declare @hash varbinary (255)
CREATE TABLE tempdb..h (id_num int, hash varbinary (255))
SET @hash = pwdencrypt('123') -- encryption
INSERT INTO tempdb..h (id_num,hash) VALUES (1,@hash)
SET @hash = pwdencrypt('123')
INSERT INTO tempdb..h (id_num,hash) VALUES (2,@hash)
SELECT TOP 1 @hash = hash FROM tempdb..h WHERE id_num = 2
SELECT pwdcompare ('123', @hash) AS [Success of check] -- Comparison
SELECT * FROM tempdb..h
INSERT INTO tempdb..h (id_num,hash)
VALUES (3,CONVERT(varbinary (255),
0x01002D60BA07FE612C8DE537DF3BFCFA49CD9968324481C1A8A8FE612C8DE537DF3BFCFA49CD9968324481C1A8A8))
SELECT TOP 1 @hash = hash FROM tempdb..h WHERE id_num = 3
SELECT pwdcompare ('123', @hash) AS [Success of check] -- Comparison
SELECT * FROM tempdb..h
DROP TABLE tempdb..h
GO
Feel free to use the function below:
function AjaxPostWithAntiForgeryToken(destinationUrl, successCallback) {
var token = $('input[name="__RequestVerificationToken"]').val();
var headers = {};
headers["__RequestVerificationToken"] = token;
$.ajax({
type: "POST",
url: destinationUrl,
data: { __RequestVerificationToken: token }, // Your other data will go here
dataType: "json",
success: function (response) {
successCallback(response);
},
error: function (xhr, status, error) {
// handle failure
}
});
}
I've done a bunch of testing with IP address services and here are a few ways I do it myself. First off a bunch off links to useful websites that I use:
https://db-ip.com/db Has a free ip-lookup service and has a few free csv files you can download. This uses a free api key that is attached to your email. It limits at 2000 queries per day.
http://ipinfo.io/ Free ip-lookup service without a api-key PHP functions:
//uses http://ipinfo.io/.
function ip_visitor_country($ip){
$ip_data_in = get_web_page("http://ipinfo.io/".$ip."/json"); //add the ip to the url and retrieve the json data
$ip_data = json_decode($ip_data_in['content'],true); //json_decode it for php use
//this ip-lookup service returns 404 if the ip is invalid/not found so return false if this is the case.
if(empty($ip_data) || $ip_data_in['httpcode'] == 404){
return false;
}else{
return $ip_data;
}
}
function get_web_page($url){
$user_agent = 'Mozilla/5.0 (Windows NT 6.1; rv:8.0) Gecko/20100101 Firefox/8.0';
$options = array(
CURLOPT_CUSTOMREQUEST =>"GET", //set request type post or get
CURLOPT_POST =>false, //set to GET
CURLOPT_USERAGENT => $user_agent, //set user agent
CURLOPT_RETURNTRANSFER => true, // return web page
CURLOPT_HEADER => false, // don't return headers
CURLOPT_FOLLOWLOCATION => true, // follow redirects
CURLOPT_ENCODING => "", // handle all encodings
CURLOPT_AUTOREFERER => true, // set referer on redirect
CURLOPT_CONNECTTIMEOUT => 120, // timeout on connect
CURLOPT_TIMEOUT => 120, // timeout on response
CURLOPT_MAXREDIRS => 10, // stop after 10 redirects
);
$ch = curl_init( $url );
curl_setopt_array( $ch, $options );
$content = curl_exec( $ch );
$err = curl_errno( $ch );
$errmsg = curl_error( $ch );
$header = curl_getinfo( $ch );
$httpCode = curl_getinfo( $ch, CURLINFO_HTTP_CODE );
curl_close( $ch );
$header['errno'] = $err; //curl error code
$header['errmsg'] = $errmsg; //curl error message
$header['content'] = $content; //the webpage result (In this case the ip data in json array form)
$header['httpcode'] = $httpCode; //the webpage response code
return $header; //return the collected data and response codes
}
In the end you get something like this:
Array
(
[ip] => 1.1.1.1
[hostname] => No Hostname
[city] =>
[country] => AU
[loc] => -27.0000,133.0000
[org] => AS15169 Google Inc.
)
http://www.geoplugin.com/ Slightly older but this service gives you a bunch of extra usefull information such as the currency off the country, continent code, longitude and more.
http://lite.ip2location.com/database-ip-country-region-city-latitude-longitude Offers a bunch of downloadable files with instructions to import them into your database. Once you have one off these files in your database you can select the data fairly easily.
SELECT * FROM `ip2location_db5` WHERE IP > ip_from AND IP < ip_to
Use the php function ip2long(); to turn the ip-address into a numeric value. For example 1.1.1.1 becomes 16843009. This lets you scan for the ip ranges given to you by the database file.
So in order to find out where 1.1.1.1 belongs to all we do is run this query:
SELECT * FROM `ip2location_db5` WHERE 16843009 > ip_from AND 16843009 < ip_to;
This returns this data as a example.
FROM: 16843008
TO: 16843263
Country code: AU
Country: Australia
Region: Queensland
City: Brisbane
Latitude: -27.46794
Longitude: 153.02809
After poking around a bit through the Introduction to Tkinter, I came up with the code below, which doesn't do anything except display a text field and clear it when the "Clear text"
button is pushed:
import tkinter as tk
class App(tk.Frame):
def __init__(self, master):
tk.Frame.__init__(self, master, height=42, width=42)
self.entry = tk.Entry(self)
self.entry.focus()
self.entry.pack()
self.clear_button = tk.Button(self, text="Clear text", command=self.clear_text)
self.clear_button.pack()
def clear_text(self):
self.entry.delete(0, 'end')
def main():
root = tk.Tk()
App(root).pack(expand=True, fill='both')
root.mainloop()
if __name__ == "__main__":
main()
you should use position:fixed
to make z-index
values to apply to your div
You can do something like this to count from a list of things.
IList<String> names = new List<string>() { "ToString", "Format" };
IEnumerable<String> methodNames = typeof(String).GetMethods().Select(x => x.Name);
int count = methodNames.Where(x => names.Contains(x)).Count();
To count a single element
string occur = "Test1";
IList<String> words = new List<string>() {"Test1","Test2","Test3","Test1"};
int count = words.Where(x => x.Equals(occur)).Count();
Based on dominic Rodger's solution, here is what I use (it uses wc if available, otherwise fallbacks to dominic Rodger's solution).
class FileTool
{
public static function getNbLines($file)
{
$linecount = 0;
$m = exec('which wc');
if ('' !== $m) {
$cmd = 'wc -l < "' . str_replace('"', '\\"', $file) . '"';
$n = exec($cmd);
return (int)$n + 1;
}
$handle = fopen($file, "r");
while (!feof($handle)) {
$line = fgets($handle);
$linecount++;
}
fclose($handle);
return $linecount;
}
}
I have created a Cards Layout - 3 cards in a row using Bootstrap 4 / CSS3 (of course its responsive). The following example uses basic Bootstrap 4 classes such as container
, row
, col-x
, list-group
and list-group-item
. Thought to share here if someone is interested in this sort of a layout.
HTML
<div class="container">
<div class="row">
<div class="col-sm-12 col-md-4">
<div class="custom-column">
<div class="custom-column-header">Header</div>
<div class="custom-column-content">
<ul class="list-group">
<li class="list-group-item"><i class="fa fa-check"></i> Cras justo odio</li>
<li class="list-group-item"><i class="fa fa-check"></i> Dapibus ac facilisis in</li>
<li class="list-group-item"><i class="fa fa-check"></i> Morbi leo risus</li>
<li class="list-group-item"><i class="fa fa-check"></i> Porta ac consectetur ac</li>
<li class="list-group-item"><i class="fa fa-check"></i> Vestibulum at eros</li>
</ul>
</div>
<div class="custom-column-footer"><button class="btn btn-primary btn-lg">Click here</button></div>
</div>
</div>
<div class="col-sm-12 col-md-4">
<div class="custom-column">
<div class="custom-column-header">Header</div>
<div class="custom-column-content">
<ul class="list-group">
<li class="list-group-item"><i class="fa fa-check"></i> Cras justo odio</li>
<li class="list-group-item"><i class="fa fa-check"></i> Dapibus ac facilisis in</li>
<li class="list-group-item"><i class="fa fa-check"></i> Morbi leo risus</li>
<li class="list-group-item"><i class="fa fa-check"></i> Porta ac consectetur ac</li>
<li class="list-group-item"><i class="fa fa-check"></i> Vestibulum at eros</li>
</ul>
</div>
<div class="custom-column-footer"><button class="btn btn-primary btn-lg">Click here</button></div>
</div>
</div>
<div class="col-sm-12 col-md-4">
<div class="custom-column">
<div class="custom-column-header">Header</div>
<div class="custom-column-content">
<ul class="list-group">
<li class="list-group-item"><i class="fa fa-check"></i> Cras justo odio</li>
<li class="list-group-item"><i class="fa fa-check"></i> Dapibus ac facilisis in</li>
<li class="list-group-item"><i class="fa fa-check"></i> Morbi leo risus</li>
<li class="list-group-item"><i class="fa fa-check"></i> Porta ac consectetur ac</li>
<li class="list-group-item"><i class="fa fa-check"></i> Vestibulum at eros</li>
</ul>
</div>
<div class="custom-column-footer"><button class="btn btn-primary btn-lg">Click here</button></div>
</div>
</div>
</div>
</div>
CSS / SCSS
$primary-color: #ccc;
$col-bg-color: #eee;
$col-footer-bg-color: #eee;
$col-header-bg-color: #007bff;
$col-content-bg-color: #fff;
body {
background-color: $primary-color;
}
.custom-column {
background-color: $col-bg-color;
border: 5px solid $col-bg-color;
padding: 10px;
box-sizing: border-box;
}
.custom-column-header {
font-size: 24px;
background-color: #007bff;
color: white;
padding: 15px;
text-align: center;
}
.custom-column-content {
background-color: $col-content-bg-color;
border: 2px solid white;
padding: 20px;
}
.custom-column-footer {
background-color: $col-footer-bg-color;
padding-top: 20px;
text-align: center;
}
You can use the for..in TypeScript operator to access the index when dealing with collections.
var test = [7,8,9];
for (var i in test) {
console.log(i + ': ' + test[i]);
}
Output:
0: 7
1: 8
2: 9
See Demo
imports
are used to import supporting modules like FormsModule, RouterModule, CommonModule, or any other custom-made feature module.
declarations
are used to declare components, directives, pipes that belong to the current module. Everyone inside declarations knows each other. For example, if we have a component, say UsernameComponent, which displays a list of the usernames and we also have a pipe, say toupperPipe, which transforms a string to an uppercase letter string. Now If we want to show usernames in uppercase letters in our UsernameComponent then we can use the toupperPipe which we had created before but the question is how UsernameComponent knows that the toupperPipe exists and how it can access and use that. Here come the declarations, we can declare UsernameComponent and toupperPipe.
Providers
are used for injecting the services required by components, directives, pipes in the module.
I was having alot of trouble with this because I was using:
if($.cookie('token') === null || $.cookie('token') === "")
{
//no cookie
}
else
{
//have cookie
}
The above was ALWAYS returning false, no matter what I did in terms of setting the cookie or not. From my tests it seems that the object is therefore undefined before it's set so adding the following to my code fixed it.
if($.cookie('token') === null || $.cookie('token') === ""
|| $.(cookie('token') === "null" || $.cookie('token') === undefined)
{
//no cookie
}
else
{
//have cookie
}
So here is the brief summary for Bootstrap 4:
<div class="container-fluid px-0">
<div class="row no-gutters">
<div class="col-12"> //any cols you need
...
</div>
</div>
</div>
It works for me.
I do not believe you can set the style programatically. To get around this you can create a template layout xml file with the style assigned, for example in res/layout create tvtemplate.xml as with the following content:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="This is a template"
style="@style/my_style" />
then inflate this to instantiate your new TextView:
TextView myText = (TextView)getLayoutInflater().inflate(R.layout.tvtemplate, null);
Hope this helps.
The other answers here clearly explained what does it mean.I like to explain its use.
You can select an element in the elements
tab and switch to console
tab in chrome. Just type $0 or $1
or whatever number and press enter and the element will be displayed in the console for your use.
Use DATE(NOW())
to compare dates
DATE(NOW())
will give you the date part of current date and DATE(duedate)
will give you the date part of the due date. then you can easily compare the dates
So you can compare it like
DATE(NOW()) = DATE(duedate)
OR
DATE(duedate) = CURDATE()
See here
Here is another helpful solution for manually adding custom HTTP Headers to your client WCF request using the ChannelFactory
as a proxy. This would have to be done for each request, but suffices as a simple demo if you just need to unit test your proxy in preparation for non-.NET platforms.
// create channel factory / proxy ...
using (OperationContextScope scope = new OperationContextScope(proxy))
{
OperationContext.Current.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = new HttpRequestMessageProperty()
{
Headers =
{
{ "MyCustomHeader", Environment.UserName },
{ HttpRequestHeader.UserAgent, "My Custom Agent"}
}
};
// perform proxy operations...
}
You can use this simple plugin as $('#some_id').getAttributes();
(function($) {
$.fn.getAttributes = function() {
var attributes = {};
if( this.length ) {
$.each( this[0].attributes, function( index, attr ) {
attributes[ attr.name ] = attr.value;
} );
}
return attributes;
};
})(jQuery);
Easiest method to decompile an android app is to download an app named ShowJava from playstore . Just select the application that needs to be decompiled from the list of applications. There are three different decompiler you can use to decompile an app namely -
CFR 0.110, JaDX 0.6.1 or FernFlower (analytical decompiler) .
I will just leave it here, just rewrote the code above using numpy, maybe somebody finds it useful:
def ray_tracing_numpy(x,y,poly):
n = len(poly)
inside = np.zeros(len(x),np.bool_)
p2x = 0.0
p2y = 0.0
xints = 0.0
p1x,p1y = poly[0]
for i in range(n+1):
p2x,p2y = poly[i % n]
idx = np.nonzero((y > min(p1y,p2y)) & (y <= max(p1y,p2y)) & (x <= max(p1x,p2x)))[0]
if p1y != p2y:
xints = (y[idx]-p1y)*(p2x-p1x)/(p2y-p1y)+p1x
if p1x == p2x:
inside[idx] = ~inside[idx]
else:
idxx = idx[x[idx] <= xints]
inside[idxx] = ~inside[idxx]
p1x,p1y = p2x,p2y
return inside
Wrapped ray_tracing into
def ray_tracing_mult(x,y,poly):
return [ray_tracing(xi, yi, poly[:-1,:]) for xi,yi in zip(x,y)]
Tested on 100000 points, results:
ray_tracing_mult 0:00:00.850656
ray_tracing_numpy 0:00:00.003769
public boolean isPalindrome(int x) {
if (isNegative(x))
return false;
boolean isPalindrome = reverseNumber(x) == x ? true : false;
return isPalindrome;
}
private boolean isNegative(int x) {
if (x < 0)
return true;
return false;
}
public int reverseNumber(int x) {
int reverseNumber = 0;
while (x > 0) {
int remainder = x % 10;
reverseNumber = reverseNumber * 10 + remainder;
x = x / 10;
}
return reverseNumber;
}
setInterval
sets up a recurring timer. It returns a handle that you can pass into clearInterval
to stop it from firing:
var handle = setInterval(drawAll, 20);
// When you want to cancel it:
clearInterval(handle);
handle = 0; // I just do this so I know I've cleared the interval
On browsers, the handle is guaranteed to be a number that isn't equal to 0
; therefore, 0
makes a handy flag value for "no timer set". (Other platforms may return other values; NodeJS's timer functions return an object, for instance.)
To schedule a function to only fire once, use setTimeout
instead. It won't keep firing. (It also returns a handle you can use to cancel it via clearTimeout
before it fires that one time if appropriate.)
setTimeout(drawAll, 20);
Anonymous inner classes are effectively closures, so they can be used to emulate lambda expressions or "delegates". For example, take this interface:
public interface F<A, B> {
B f(A a);
}
You can use this anonymously to create a first-class function in Java. Let's say you have the following method that returns the first number larger than i in the given list, or i if no number is larger:
public static int larger(final List<Integer> ns, final int i) {
for (Integer n : ns)
if (n > i)
return n;
return i;
}
And then you have another method that returns the first number smaller than i in the given list, or i if no number is smaller:
public static int smaller(final List<Integer> ns, final int i) {
for (Integer n : ns)
if (n < i)
return n;
return i;
}
These methods are almost identical. Using the first-class function type F, we can rewrite these into one method as follows:
public static <T> T firstMatch(final List<T> ts, final F<T, Boolean> f, T z) {
for (T t : ts)
if (f.f(t))
return t;
return z;
}
You can use an anonymous class to use the firstMatch method:
F<Integer, Boolean> greaterThanTen = new F<Integer, Boolean> {
Boolean f(final Integer n) {
return n > 10;
}
};
int moreThanMyFingersCanCount = firstMatch(xs, greaterThanTen, x);
This is a really contrived example, but its easy to see that being able to pass functions around as if they were values is a pretty useful feature. See "Can Your Programming Language Do This" by Joel himself.
A nice library for programming Java in this style: Functional Java.
To be able to detect unused imports, code or variables, make sure you have this options in tsconfig.json file
"compilerOptions": {
"noUnusedLocals": true,
"noUnusedParameters": true
}
have the typescript compiler installed, ifnot install it with:
npm install -g typescript
and the tslint extension installed in Vcode, this worked for me, but after enabling I notice an increase amount of CPU usage, specially on big projects.
I would also recomend using typescript hero extension for organizing your imports.
Changed all dependencies to compile rather than implementation, then I rebuild the project without errors. Then I switched back to implementation rather than leaving it as compile.
You can use the "Company Search" operation in the Company Fundamentals API here: http://www.mergent.com/servius/
In your index.php
file add the line:
define('ENVIRONMENT', isset($_SERVER['CI_ENV']) ? $_SERVER['CI_ENV'] : 'development');
As explained in the documentation, by using an @RequestParam
annotation:
public @ResponseBody String byParameter(@RequestParam("foo") String foo) {
return "Mapped by path + method + presence of query parameter! (MappingController) - foo = "
+ foo;
}
Check these links: http://www.orcsweb.com/blog/james/powershell-ing-on-windows-server-how-to-import-certificates-using-powershell/
Import-Certificate: http://poshcode.org/1937
You can do something like:
dir -Path C:\Certs -Filter *.cer | Import-Certificate -CertFile $_ -StoreNames AuthRoot, Root -LocalMachine -Verbose
The easiest is to use the queryout
option and use union all
to link a column list with the actual table content
bcp "select 'col1', 'col2',... union all select * from myschema.dbo.myTableout" queryout myTable.csv /SmyServer01 /c /t, -T
An example:
create table Question1355876
(id int, name varchar(10), someinfo numeric)
insert into Question1355876
values (1, 'a', 123.12)
, (2, 'b', 456.78)
, (3, 'c', 901.12)
, (4, 'd', 353.76)
This query will return the information with the headers as first row (note the casts of the numeric values):
select 'col1', 'col2', 'col3'
union all
select cast(id as varchar(10)), name, cast(someinfo as varchar(28))
from Question1355876
The bcp command will be:
bcp "select 'col1', 'col2', 'col3' union all select cast(id as varchar(10)), name, cast(someinfo as varchar(28)) from Question1355876" queryout myTable.csv /SmyServer01 /c /t, -T
I appreciate the OP is new to Java, so methods might be considered "advanced", however I think it's worth using this problem to show how you can attack a problem by breaking it into pieces.
Let's think about writing a method to print a single line, telling the method which number line it is:
public void printTriangleLine(int rowNumber) {
// we have to work out what to put here
}
We have to print some number of spaces, then some number of stars.
Looking at the example, I can see that (if the first row is 0) it's (5-rowNumber) spaces and (2*rowNumber + 1) stars.
Let's invent a method that prints the rows of characters for us, and use it:
public void printTriangleLine(int rowNumber) {
printSequence(" ", 5 - rowNumber);
printSequence("*", 2 * rowNumber + 1);
System.out.println();
}
That won't compile until we actually write printSequence(), so let's do that:
public void printSequence(String s, int repeats) {
for(int i=0; i<repeats; i++) {
System.out.print(s);
}
}
Now you can test printSequence on its own, and you can test printTriangleLine on its own. For now you can just try it out by calling those methods directly in main()
public static void main(String [] args) {
printSequence("a",3);
System.out.println();
printTriangleLine(2);
}
... run it and verify (with your eyes) that it outputs:
aaa
*****
When you get further into programming, you'll want to use a unit testing framework like jUnit. Instead of printing, you'd more likely write things like printTriangleLine to return a String (which you'd print from higher up in your program), and you would automate your testing with commands like:
assertEquals(" *****", TriangleDrawer.triangleLine(2));
assertEquals(" *", TriangleDrawer.triangleLine(0))
Now we have the pieces we need to draw a triangle.
public void drawTriangle() {
for(int i=0; i<5; i++) {
printTriangleLine(i);
}
}
The code we have written is a bit longer than the answers other people have given. But we have been able to test each step, and we have methods that we can use again in other problems. In real life, we have to find the right balance between breaking a problem into too many methods, or too few. I tend to prefer lots of really short methods.
For extra credit:
System.out.print(drawTriangle())
drawTriangle(3)
or drawTriangle(5)
By default, a batch file will display its command as it runs. The purpose of this first command which @echo off is to turn off this display. The command "echo off" turns off the display for the whole script, except for the "echo off" command itself. The "at" sign "@" in front makes the command apply to itself as well.
You can't unfortunately. The only way is to simulate this with a window.open call.
OFFSET 10 ROWS -- skip 10 rows
FETCH NEXT 10 ROWS ONLY; -- take 10 rows
use this in the end of your select syntax. =)
Blob datatypes stores binary objects like images while text datatypes stores text objects like articles of webpages
There are two primary contenders for python apps on Android
This integrates with the Android build system, it provides a Python API for all android features. To quote the site "The complete Android API and user interface toolkit are directly at your disposal."
This provides a multi target transpiler, supports many targets such as Android and iOS. It uses a generic widget toolkit (toga) that maps to the host interface calls.
Both are active projects and their github accounts shows a fair amount of recent activity.
Beeware Toga like all widget libraries is good for getting the basics out to multiple platforms. If you have basic designs, and a desire to expand to other platforms this should work out well for you.
On the other hand, Chaquopy is a much more precise in its mapping of the python API to Android. It also allows you to mix in Java, useful if you want to use existing code from other resources. If you have strict design targets, and predominantly want to target Android this is a much better resource.
You can remove database directly as:
$ mysqladmin -h [host] -u [user] -p drop [database_name]
[Enter Password]
Do you really want to drop the 'hairfree' database [y/N]: y
Try with quotes:
data: {"status": status, "name": name}
It must work fine.
If the software is Sequel pro the default install mysql on Mac OSX has data located here:
/usr/local/var/mysql
Since PowerShell 6.0, Join-Path has a new parameter called -AdditionalChildPath
and can combine multiple parts of a path out-of-the-box. Either by providing the extra parameter or by just supplying a list of elements.
Example from the documentation:
Join-Path a b c d e f g
a\b\c\d\e\f\g
So in PowerShell 6.0 and above your variant
$path = Join-Path C: "Program Files" "Microsoft Office"
works as expected!
Heh, there are some pretty exciting uses of ternary syntax in your question; I like the last one the best...
x = (1 < 2) ? true : false;
The use of ternary here is totally unnecessary - you could simply write
x = (1 < 2);
Likewise, the condition element of a ternary statement is always evaluated as a Boolean value, and therefore you can express:
(IsChecked == true) ? removeItem($this) : addItem($this);
Simply as:
(IsChecked) ? removeItem($this) : addItem($this);
In fact, I would also remove the IsChecked
temporary as well which leaves you with:
($this.hasClass("IsChecked")) ? removeItem($this) : addItem($this);
As for whether this is acceptable syntax, it sure is! It's a great way to reduce four lines of code into one without impacting readability. The only word of advice I would give you is to avoid nesting multiple ternary statements on the same line (that way lies madness!)
You need to pass your components as children, like this:
var App = require('./App.js');
var SampleComponent = require('./SampleComponent.js');
ReactDOM.render(
<App>
<SampleComponent name="SomeName"/>
<App>,
document.body
);
And then append them in the component's body:
var App = React.createClass({
render: function() {
return (
<div>
<h1>App main component! </h1>
{
this.props.children
}
</div>
);
}
});
You don't need to manually manipulate HTML code, React will do that for you. If you want to add some child components, you just need to change props or state it depends. For example:
var App = React.createClass({
getInitialState: function(){
return [
{id:1,name:"Some Name"}
]
},
addChild: function() {
// State change will cause component re-render
this.setState(this.state.concat([
{id:2,name:"Another Name"}
]))
}
render: function() {
return (
<div>
<h1>App main component! </h1>
<button onClick={this.addChild}>Add component</button>
{
this.state.map((item) => (
<SampleComponent key={item.id} name={item.name}/>
))
}
</div>
);
}
});
I would guess that you either haven't edited the right php.ini
or you haven't restarted PHP and/or the webserver.
Create a phpinfo.php
page in your docroot with the contents <?php phpinfo();
to make sure you are changing the correct php.ini
. In addition to the location of the php.ini
file the webserver is using, it will also state the maximum script memory allowed.
Next, I would add some stack traces to your page so you can see the chain of events that led to this. The following function will catch fatal errors and provide more information about what happened.
register_shutdown_function(function()
{
if($error = error_get_last())
{
// Should actually log this instead of printing out...
var_dump($error);
var_dump(debug_backtrace());
}
});
Personally, Nginx + PHP-FPM is what I have used for years since I left slow ol' Apache.
To fix this, i put this class on the webpage
<style>
td.vcenter {
vertical-align: middle !important;
text-align: center !important;
}
</style>
and this in my TemplateField
<asp:TemplateField ItemStyle-CssClass="vcenter">
as the CSS class points directly to the td (tabledata) element and has the !important statment at the end each setting. It will over rule bootsraps CSS class settings.
Hope it helps
The generic type of a collection should only matter if it actually has objects in it, right? So isn't it easier to just do:
Collection<?> myCollection = getUnknownCollectionFromSomewhere();
Class genericClass = null;
Iterator it = myCollection.iterator();
if (it.hasNext()){
genericClass = it.next().getClass();
}
if (genericClass != null) { //do whatever we needed to know the type for
There's no such thing as a generic type in runtime, but the objects inside at runtime are guaranteed to be the same type as the declared generic, so it's easy enough just to test the item's class before we process it.
Another thing you can do is simply process the list to get members that are the right type, ignoring others (or processing them differently).
Map<Class<?>, List<Object>> classObjectMap = myCollection.stream()
.filter(Objects::nonNull)
.collect(Collectors.groupingBy(Object::getClass));
// Process the list of the correct class, and/or handle objects of incorrect
// class (throw exceptions, etc). You may need to group subclasses by
// filtering the keys. For instance:
List<Number> numbers = classObjectMap.entrySet().stream()
.filter(e->Number.class.isAssignableFrom(e.getKey()))
.flatMap(e->e.getValue().stream())
.map(Number.class::cast)
.collect(Collectors.toList());
This will give you a list of all items whose classes were subclasses of Number
which you can then process as you need. The rest of the items were filtered out into other lists. Because they're in the map, you can process them as desired, or ignore them.
If you want to ignore items of other classes altogether, it becomes much simpler:
List<Number> numbers = myCollection.stream()
.filter(Number.class::isInstance)
.map(Number.class::cast)
.collect(Collectors.toList());
You can even create a utility method to insure that a list contains ONLY those items matching a specific class:
public <V> List<V> getTypeSafeItemList(Collection<Object> input, Class<V> cls) {
return input.stream()
.filter(cls::isInstance)
.map(cls::cast)
.collect(Collectors.toList());
}
A quick way is to run a jQuery command in the developer console. On any browser hit F12 and try to access any of the element .
$("#sideTab2").css("background-color", "yellow");
Steal from Merb:
# File merb/core_ext/hash.rb, line 87
def to_params
params = ''
stack = []
each do |k, v|
if v.is_a?(Hash)
stack << [k,v]
else
params << "#{k}=#{v}&"
end
end
stack.each do |parent, hash|
hash.each do |k, v|
if v.is_a?(Hash)
stack << ["#{parent}[#{k}]", v]
else
params << "#{parent}[#{k}]=#{v}&"
end
end
end
params.chop! # trailing &
params
end
See http://noobkit.com/show/ruby/gems/development/merb/hash/to_params.html
Use max-width:100%;
, height: auto;
and display:block;
as follow:
image {
max-width:100%;
height: auto;
display:block;
}
Use usort:
usort($array, function($a1, $a2) {
$v1 = strtotime($a1['date']);
$v2 = strtotime($a2['date']);
return $v1 - $v2; // $v2 - $v1 to reverse direction
});
You can also do
t.index([:branch_id, :party_id], unique: true, name: 'by_branch_party')
as in the Ruby on Rails API.
This question might have been asked some time ago, but as I recently landed on this topic looking for client-side form validation, and as the :placeholder-shown
support is getting better, I thought the following might help others.
Using Berend idea of using this CSS4 pseudo-class, I was able to create a form validation only triggered after the user is finished filling it.
Here is ademo and explanation on CodePen: https://codepen.io/johanmouchet/pen/PKNxKQ
The accepted answer will work if you can easily reproduce the issue. However, as a matter of best practice, you should be catching any exceptions (and logging) that are executed within a task. Otherwise, your application will crash if anything unexpected occurs within the task.
Task.Factory.StartNew(x=>
throw new Exception("I didn't account for this");
)
However, if we do this, at least the application does not crash.
Task.Factory.StartNew(x=>
try {
throw new Exception("I didn't account for this");
}
catch(Exception ex) {
//Log ex
}
)
This can easily be done manually with the Windows Task Scheduler.
Then, create a batch file that contains the following:
cd C:\path\to\project\root
call C:\Users\Username\AppData\Roaming\npm\forever.cmd start server.js
exit 0
Lastly, create a scheduled task that runs when you log on. This task should call the batch file.
Not sure if that's exactly what you need, but we are using profiles to define the environment we are running at and specific bean for each environment, so it's something like that:
<bean name="myBean" class="myClass">
<constructor-arg name="name" value="originalValue" />
</bean>
<beans profile="DEV, default">
<!-- Specific DEV configurations, also default if no profile defined -->
<bean name="myBean" class="myClass">
<constructor-arg name="name" value="overrideValue" />
</bean>
</beans>
<beans profile="CI, UAT">
<!-- Specific CI / UAT configurations -->
</beans>
<beans profile="PROD">
<!-- Specific PROD configurations -->
</beans>
So in this case, if I don't define a profile or if I define it as "DEV" myBean will get "overrideValue" for it's name argument. But if I set the profile to "CI", "UAT" or "PROD" it will get "originalValue" as the value.
An alternative solution is using jQuery:
<script src="js/jquery-1.11.0.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
PrepareCheckbox();
});
function PrepareCheckbox(){
document.getElementById("checkbox").checked = true;
}
</script>
$cmd
would just replace the variable with it's value to be executed on command line.
eval "$cmd"
does variable expansion & command substitution before executing the resulting value on command line
The 2nd method is helpful when you wanna run commands that aren't flexible eg.
for i in {$a..$b}
format loop won't work because it doesn't allow variables.
In this case, a pipe to bash or eval is a workaround.
Tested on Mac OSX 10.6.8, Bash 3.2.48
Since you have a FULL backup, you can restore the backup to a different server as a database of the same name or to the same server with a different name.
Then you can just review the contents pre-update and write a SQL script to do the update.
This should do the trick:
<table width="400" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="50" height="40" valign="top" rowspan="3">
<img alt="" src="" width="40" height="40" style="margin: 0; border: 0; padding: 0; display: block;">
</td>
<td width="350" height="40" style="font-family: Helvetica, Arial, sans-serif; font-size: 14px; color: #000000;">
<a href="" style="color: #D31145; font-weight: bold; text-decoration: none;">LAST FIRST</a><br>
REALTOR | P 123.456.789
</td>
</tr>
<tr>
<td width="350" height="70" valign="bottom" style="font-family: Helvetica, Arial, sans-serif; font-size: 14px; color: #000000;">
<img alt="" src="" width="200" height="60" style="margin: 0; border: 0; padding: 0; display: block;">
</td>
</tr>
<tr>
<td width="350" height="20" valign="bottom" style="font-family: Helvetica, Arial, sans-serif; font-size: 10px; color: #000000;">
all your minor text here | all your minor text here | all your minor text here
</td>
</tr>
</table>
UPDATE: Adjusted code per the comments:
After viewing your jsFiddle, an important thing to note about tables is that table cell widths in each additional row all have to be the same width as the first, and all cells must add to the total width of your table.
Here is an example that will NOT WORK:
<table width="600" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="200" bgcolor="#252525">
</td>
<td width="400" bgcolor="#454545">
</td>
</tr>
<tr>
<td width="300" bgcolor="#252525">
</td>
<td width="300" bgcolor="#454545">
</td>
</tr>
</table>
Although the 2nd row does add up to 600, it (and any additional rows) must have the same 200-400 split as the first row, unless you are using colspans. If you use a colspan, you could have one row, but it needs to have the same width as the cells it is spanning, so this works:
<table width="600" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="200" bgcolor="#252525">
</td>
<td width="400" bgcolor="#454545">
</td>
</tr>
<tr>
<td width="600" colspan="2" bgcolor="#353535">
</td>
</tr>
</table>
Not a full tutorial, but I hope that helps steer you in the right direction in the future.
Here is the code you are after:
<table width="900" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="57" height="43" valign="top" rowspan="2">
<img alt="Rashel Adragna" src="http://zoparealtygroup.com/wp-content/uploads/2013/10/sig_head.png" width="47" height="43" style="margin: 0; border: 0; padding: 0; display: block;">
</td>
<td width="843" height="43" style="font-family: Helvetica, Arial, sans-serif; font-size: 14px; color: #000000;">
<a href="" style="color: #D31145; font-weight: bold; text-decoration: none;">RASHEL ADRAGNA</a><br>
REALTOR | P 855.900.24KW
</td>
</tr>
<tr>
<td width="843" height="64" valign="bottom" style="font-family: Helvetica, Arial, sans-serif; font-size: 14px; color: #000000;">
<img alt="Zopa Realty Group logo" src="http://zoparealtygroup.com/wp-content/uploads/2013/10/sig_logo.png" width="177" height="54" style="margin: 0; border: 0; padding: 0; display: block;">
</td>
</tr>
<tr>
<td width="843" colspan="2" height="20" valign="bottom" align="center" style="font-family: Helvetica, Arial, sans-serif; font-size: 10px; color: #000000;">
all your minor text here | all your minor text here | all your minor text here
</td>
</tr>
</table>
You'll note that I've added an extra 10px to some of your table cells. This in combination with align/valigns act as padding between your cells. It is a clever way to aviod actually having to add padding, margins or empty padding cells.
I'm writing slider ui control to provide drag feature, this is my way to prevent content from selecting when user is dragging:
function disableSelect(event) {
event.preventDefault();
}
function startDrag(event) {
window.addEventListener('mouseup', onDragEnd);
window.addEventListener('selectstart', disableSelect);
// ... my other code
}
function onDragEnd() {
window.removeEventListener('mouseup', onDragEnd);
window.removeEventListener('selectstart', disableSelect);
// ... my other code
}
bind startDrag
on your dom:
<button onmousedown="startDrag">...</button>
If you want to statically disable text select on all element, execute the code when elements are loaded:
window.addEventListener('selectstart', function(e){ e.preventDefault(); });
There is also a convenient shortcut to get all elements of the array starting with specified index. For example "${A[@]:1}" would be the "tail" of the array, that is the array without its first element.
version=4.7.1
A=( ${version//\./ } )
echo "${A[@]}" # 4 7 1
B=( "${A[@]:1}" )
echo "${B[@]}" # 7 1
From what you've told us it does appear to be a false positive in valgrind. The new
syntax with ()
should value-initialize the object, assuming it is POD.
Is it possible that some subpart of your struct isn't actually POD and that's preventing the expected initialization? Are you able to simplify your code into a postable example that still flags the valgrind error?
Alternately perhaps your compiler doesn't actually value-initialize POD structures.
In any case probably the simplest solution is to write constructor(s) as needed for the struct/subparts.
version 4.8.0
$('textarea').data('ckeditorInstance').getData();
If you want to see landscape on the screen before you print, as well as printing, then in your css, you can set the width to 900px, and the height to 612px.
OP didn't mention A4 size. I assume it's Letter size in my numbers above.
I would use a UIAlertView
with a UITextField
subview. You can either add the text field manually or, in iOS 5, use one of the new methods.
I recommend GPick:
sudo apt-get install gpick
Applications -> Graphics -> GPick
It has many more features than gcolor2 but is still extremely simple to use: click on one of the hex swatches, move your mouse around the screen over the colours you want to pick, then press the Space bar to add to your swatch list.
If that doesn't work, another way is to click-and-drag from the centre of the hexagon and release your mouse over the pixel that you want to sample. Then immediately hit Space to copy that color into the next swatch in rotation.
It also has a traditional colour picker (like gcolor2) in the bottom right-hand corner of the window to allow you to pick individual colours with magnification.
Delete all invisible characters (whitespace) around that area, then give it another try.
I've seen that error in Safari when copy/pasting code. You can pick up some invalid (and unfortunately invisible) characters.
Used to happen to me a lot when copying from jsFiddle.
The newline character is actually '\n'
.
the same problem also happened to me when i training my classification model. the reason caused this problem is as what the warning message said "in labels with no predicated samples", it will caused the zero-division when compute f1-score. I found another solution when i read sklearn.metrics.f1_score doc, there is a note as follows:
When true positive + false positive == 0, precision is undefined; When true positive + false negative == 0, recall is undefined. In such cases, by default the metric will be set to 0, as will f-score, and UndefinedMetricWarning will be raised. This behavior can be modified with zero_division
the zero_division
default value is "warn"
, you could set it to 0
or 1
to avoid UndefinedMetricWarning
.
it works for me ;) oh wait, there is another problem when i using zero_division
, my sklearn report that no such keyword argument by using scikit-learn 0.21.3. Just update your sklearn to the latest version by running pip install scikit-learn -U
The startActivityForResult pattern is much better suited for what you're trying to achieve : http://developer.android.com/reference/android/app/Activity.html#StartingActivities
Try below code
public class MainActivity extends Activity {
Button button1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textView1=(TextView)findViewById(R.id.textView1);
button1=(Button)findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
Intent intent=new Intent(MainActivity.this,SecondActivity.class);
startActivityForResult(intent, 2);// Activity is started with requestCode 2
}
});
}
// Call Back method to get the Message form other Activity
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
// check if the request code is same as what is passed here it is 2
if(requestCode==2)
{
//do the things u wanted
}
}
}
SecondActivity.class
public class SecondActivity extends Activity {
Button button1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
button1=(Button)findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
String message="hello ";
Intent intent=new Intent();
intent.putExtra("MESSAGE",message);
setResult(2,intent);
finish();//finishing activity
}
});
}
}
Let me know if it helped...
You can do it like this.
Models.TestModels obj = new Models.TestModels();
foreach (var item in obj.sp)
{
Console.Write(item.Key);
Console.Write(item.Value.name);
Console.Write(item.Value.age);
}
The problem you most likely have right now is that the collection is private. If you add public to the beginning of this line
Dictionary<int, dynamic> sp = new Dictionary<int, dynamic>
You should be able to access it from the function inside your controller.
Edit: Adding functional example of the full TestModels
implementation.
Your TestModels
class should look something like this.
public class TestModels
{
public Dictionary<int, dynamic> sp = new Dictionary<int, dynamic>();
public TestModels()
{
sp.Add(0, new {name="Test One", age=5});
sp.Add(1, new {name="Test Two", age=7});
}
}
You probably want to read up on the dynamic keyword as well.
As an update of @Live's answer, for Qt = 5.2 there is no more need to subclass QThread
, as now the sleep functions are public:
Static Public Members
QThread * currentThread()
Qt::HANDLE currentThreadId()
int idealThreadCount()
void msleep(unsigned long msecs)
void sleep(unsigned long secs)
void usleep(unsigned long usecs)
void yieldCurrentThread()
cf http://qt-project.org/doc/qt-5/qthread.html#static-public-members
Perhaps:
> data.frame(aname=NA, bname=NA)[numeric(0), ]
[1] aname bname
<0 rows> (or 0-length row.names)
This code worked for me
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Entity<UserDetail>()
.HasRequired(d => d.User)
.WithOptional(u => u.UserDetail)
.WillCascadeOnDelete(true);
}
The migration code was:
public override void Up()
{
AddForeignKey("UserDetail", "UserId", "User", "UserId", cascadeDelete: true);
}
And it worked fine. When I first used
modelBuilder.Entity<User>()
.HasOptional(a => a.UserDetail)
.WithOptionalDependent()
.WillCascadeOnDelete(true);
The migration code was:
AddForeignKey("User", "UserDetail_UserId", "UserDetail", "UserId", cascadeDelete: true);
but it does not match any of the two overloads available (in EntityFramework 6)
Here's another way -
cat > outfile.txt
>Enter text
>to save press ctrl-d
As the other answers have indicated, you need to use an anonymous type.
As far as syntax is concerned, I personally far prefer method chaining. The method chaining equivalent would be:-
var employee = _db.EMPLOYEEs
.Where(x => x.EMAIL == givenInfo || x.USER_NAME == givenInfo)
.Select(x => new { x.EMAIL, x.ID });
AFAIK, the declarative LINQ syntax is converted to a method call chain similar to this when it is compiled.
UPDATE
If you want the entire object, then you just have to omit the call to Select()
, i.e.
var employee = _db.EMPLOYEEs
.Where(x => x.EMAIL == givenInfo || x.USER_NAME == givenInfo);
Functions are not allowed to have side-effects such as altering table contents.
Stored Procedures are.
If a function called a stored procedure, the function would become able to have side-effects.
So, sorry, but no, you can't call a stored procedure from a function.
def get_int_or_float(v):
number_as_float = float(v)
number_as_int = int(number_as_float)
return number_as_int if number_as_float == number_as_int else number_as_float
%%writefile myfile.py
-a
to append). Another alias: %%file myfile.py
%run myfile.py
%load myfile.py
%lsmagic
%COMMAND-NAME?
%run?
Beside the cell magic commands, IPython notebook (now Jupyter notebook) is so cool that it allows you to use any unix command right from the cell (this is also equivalent to using the %%bash
cell magic command).
To run a unix command from the cell, just precede your command with !
mark. for example:
!python --version
see your python version!python myfile.py
run myfile.py and output results in the current cell, just like %run
(see the difference between !python
and %run
in the comments below).Also, see this nbviewer for further explanation with examples. Hope this helps.
Just in case this helps anyone else:
If you're going to be adding the TimeOut
directive, and your website uses multiple vhosts (eg. one for port 80, one for port 443), then don't forget to add the directive to all of them!
The problem is that "i" is incremented, so by the time the click event is executed the value of i equals len. One possible solution is to capture the value of i inside a function:
var len = menuitems.length;
for (var i = 0; i < len; i++){
(function(i) {
$('<li/>',{
'html':'<img src="'+menuitems[i].icon+'">'+menuitems[i].name,
'click':function(){
menuitems[i].action();
},
'class':o.itemClass
}).appendTo('.'+o.listClass);
})(i);
}
In the above sample, the anonymous function creates a new scope which captures the current value of i, so that when the click event is triggered the local variable is used instead of the i from the for loop.
Any Image is a collection of signals of various frequencies. The higher frequencies control the edges and the lower frequencies control the image content. Edges are formed when there is a sharp transition from one pixel value to the other pixel value like 0 and 255 in adjacent cell. Obviously there is a sharp change and hence the edge and high frequency. For sharpening an image these transitions can be enhanced further.
One way is to convolve a self made filter kernel with the image.
import cv2
import numpy as np
image = cv2.imread('images/input.jpg')
kernel = np.array([[-1,-1,-1],
[-1, 9,-1],
[-1,-1,-1]])
sharpened = cv2.filter2D(image, -1, kernel) # applying the sharpening kernel to the input image & displaying it.
cv2.imshow('Image Sharpening', sharpened)
cv2.waitKey(0)
cv2.destroyAllWindows()
There is another method of subtracting a blurred version of image from bright version of it. This helps sharpening the image. But should be done with caution as we are just increasing the pixel values. Imagine a grayscale pixel value 190, which if multiplied by a weight of 2 makes if 380, but is trimmed of at 255 due to the maximum allowable pixel range. This is information loss and leads to washed out image.
addWeighted(frame, 1.5, image, -0.5, 0, image);
Save your workbook. If this code doesn't do what you want, the only way to go back is to close without saving and reopen.
Select the data you want to list in one column. Must be contiguous columns. May contain blank cells.
Press Alt+F11 to open the VBE
Press Control+R to view the Project Explorer
Navigate to the project for your workbook and choose Insert - Module
Paste this code in the code pane
Sub MakeOneColumn()
Dim vaCells As Variant
Dim vOutput() As Variant
Dim i As Long, j As Long
Dim lRow As Long
If TypeName(Selection) = "Range" Then
If Selection.Count > 1 Then
If Selection.Count <= Selection.Parent.Rows.Count Then
vaCells = Selection.Value
ReDim vOutput(1 To UBound(vaCells, 1) * UBound(vaCells, 2), 1 To 1)
For j = LBound(vaCells, 2) To UBound(vaCells, 2)
For i = LBound(vaCells, 1) To UBound(vaCells, 1)
If Len(vaCells(i, j)) > 0 Then
lRow = lRow + 1
vOutput(lRow, 1) = vaCells(i, j)
End If
Next i
Next j
Selection.ClearContents
Selection.Cells(1).Resize(lRow).Value = vOutput
End If
End If
End If
End Sub
Press F5 to run the code
I had the same problem and resulted that was an "every day" error in the rails controller. I don't know why, but on production, puma runs the error again and again causing the message:
upstream timed out (110: Connection timed out) while reading response header from upstream
Probably because Nginx tries to get the data from puma again and again.The funny thing is that the error caused the timeout message even if I'm calling a different action in the controller, so, a single typo blocks all the app.
Check your log/puma.stderr.log file to see if that is the situation.
<select id="myDropDown">
<option>html5</option>
<option>javascript</option>
<option>jquery</option>
<option>css</option>
<option>sencha</option>
</select>
By jQuery:
var myDropDown=$("#myDropDown");
var length = $('#myDropDown> option').length;
//open dropdown
myDropDown.attr('size',length);
//close dropdown
myDropDown.attr('size',0);
By javascript:
var myDropDown=document.getElementById("myDropDown");
var length = myDropDown.options.length;
//open dropdown
myDropDown.size = length;
//close dropdown
myDropDown.size = 0;
Copied from: Open close select
try this
bool flag = dg1.CurrentRow.Selected;
if(flag)
{
/// datagridview row is selected in datagridview rowselect selection mode
}
else
{
/// no row is selected or last empty row is selected
}
CREATE TYPE dumyTable
AS TABLE
(
RateCodeId int,
RateLowerRange int,
RateHigherRange int,
RateRangeValue int
);
GO
CREATE PROCEDURE spInsertRateRanges
@dt AS dumyTable READONLY
AS
BEGIN
SET NOCOUNT ON;
INSERT tblRateCodeRange(RateCodeId,RateLowerRange,RateHigherRange,RateRangeValue)
SELECT *
FROM @dt
END
You can't find a consistent reference because it seems to go by at least six different names!
While not strictly serialization, json may be reasonable approach here. That will handled nested dicts and lists, and data as long as your data is "simple": strings, and basic numeric types.
Below is the easiest way to SSh in java. Download any of the file in the below link and extract, then add the jar file from the extracted file and add to your build path of the project http://www.ganymed.ethz.ch/ssh2/ and use the below method
public void SSHClient(String serverIp,String command, String usernameString,String password) throws IOException{
System.out.println("inside the ssh function");
try
{
Connection conn = new Connection(serverIp);
conn.connect();
boolean isAuthenticated = conn.authenticateWithPassword(usernameString, password);
if (isAuthenticated == false)
throw new IOException("Authentication failed.");
ch.ethz.ssh2.Session sess = conn.openSession();
sess.execCommand(command);
InputStream stdout = new StreamGobbler(sess.getStdout());
BufferedReader br = new BufferedReader(new InputStreamReader(stdout));
System.out.println("the output of the command is");
while (true)
{
String line = br.readLine();
if (line == null)
break;
System.out.println(line);
}
System.out.println("ExitCode: " + sess.getExitStatus());
sess.close();
conn.close();
}
catch (IOException e)
{
e.printStackTrace(System.err);
}
}
For example,
package main
import (
"fmt"
"strings"
)
func main() {
s := "\t Hello, World\n "
fmt.Printf("%d %q\n", len(s), s)
t := strings.TrimSpace(s)
fmt.Printf("%d %q\n", len(t), t)
}
Output:
16 "\t Hello, World\n "
12 "Hello, World"
I found.
The url is For Exapmle: https://example.com/xD?foo=bar&uri=https%3A%2F%2Fexample.com%2FxD
You need Found $_GET['uri'] is encoded or not:
preg_match("/.*uri=(.*)&?.*/", $_SERVER['REQUEST_URI'], $r);
if (isset($_GET['uri']) && urldecode($r['1']) === $r['1']) {
// Code Here if url is not encoded
}
The only portable way to achieve consistency between rooms and tags and making sure rooms are never returned after they had been deleted is locking them with SELECT FOR UPDATE
.
However in some systems locking is a side effect of concurrency control, and you achieve the same results without specifying FOR UPDATE
explicitly.
To solve this problem, Thread 1 should
SELECT id FROM rooms FOR UPDATE
, thereby preventing Thread 2 from deleting fromrooms
until Thread 1 is done. Is that correct?
This depends on the concurrency control your database system is using.
MyISAM
in MySQL
(and several other old systems) does lock the whole table for the duration of a query.
In SQL Server
, SELECT
queries place shared locks on the records / pages / tables they have examined, while DML
queries place update locks (which later get promoted to exclusive or demoted to shared locks). Exclusive locks are incompatible with shared locks, so either SELECT
or DELETE
query will lock until another session commits.
In databases which use MVCC
(like Oracle
, PostgreSQL
, MySQL
with InnoDB
), a DML
query creates a copy of the record (in one or another way) and generally readers do not block writers and vice versa. For these databases, a SELECT FOR UPDATE
would come handy: it would lock either SELECT
or the DELETE
query until another session commits, just as SQL Server
does.
When should one use
REPEATABLE_READ
transaction isolation versusREAD_COMMITTED
withSELECT ... FOR UPDATE
?
Generally, REPEATABLE READ
does not forbid phantom rows (rows that appeared or disappeared in another transaction, rather than being modified)
In Oracle
and earlier PostgreSQL
versions, REPEATABLE READ
is actually a synonym for SERIALIZABLE
. Basically, this means that the transaction does not see changes made after it has started. So in this setup, the last Thread 1
query will return the room as if it has never been deleted (which may or may not be what you wanted). If you don't want to show the rooms after they have been deleted, you should lock the rows with SELECT FOR UPDATE
In InnoDB
, REPEATABLE READ
and SERIALIZABLE
are different things: readers in SERIALIZABLE
mode set next-key locks on the records they evaluate, effectively preventing the concurrent DML
on them. So you don't need a SELECT FOR UPDATE
in serializable mode, but do need them in REPEATABLE READ
or READ COMMITED
.
Note that the standard on isolation modes does prescribe that you don't see certain quirks in your queries but does not define how (with locking or with MVCC
or otherwise).
When I say "you don't need SELECT FOR UPDATE
" I really should have added "because of side effects of certain database engine implementation".
box-shadow: 0 5px 5px 0 #000;
It works on my side. Hope, it helps you.
I was getting the same type of error, and I found that the console is not capable of displaying the string in another language. Hence I made the below code changes to set default_charset as UTF-8.
data_head = [('\x81\xa1\x8fo\x89\xef\x82\xa2\x95\xdb\x8f\xd8\x90\xa7\x93x\x81\xcb3\x8c\x8e\x8cp\x91\xb1\x92\x86(\x81\x86\x81\xde\x81\x85)\x81\xa1\x8f\x89\x89\xf1\x88\xc8\x8aO\x81A\x82\xa8\x8b\xe0\x82\xcc\x90S\x94z\x82\xcd\x88\xea\x90\xd8\x95s\x97v\x81\xa1\x83}\x83b\x83v\x82\xcc\x82\xa8\x8e\x8e\x82\xb5\x95\xdb\x8c\xaf\x82\xc5\x8fo\x89\xef\x82\xa2\x8am\x92\xe8\x81\xa1', 'shift_jis')]
default_charset = 'UTF-8' #can also try 'ascii' or other unicode type
print ''.join([ unicode(lin[0], lin[1] or default_charset) for lin in data_head ])
I've also faced the problem of ordering of loaded scripts, which was solved through sequential loading of scripts. The loading is based on Rob W's answer.
function scriptFromFile(file) {
var script = document.createElement("script");
script.src = chrome.extension.getURL(file);
return script;
}
function scriptFromSource(source) {
var script = document.createElement("script");
script.textContent = source;
return script;
}
function inject(scripts) {
if (scripts.length === 0)
return;
var otherScripts = scripts.slice(1);
var script = scripts[0];
var onload = function() {
script.parentNode.removeChild(script);
inject(otherScripts);
};
if (script.src != "") {
script.onload = onload;
document.head.appendChild(script);
} else {
document.head.appendChild(script);
onload();
}
}
The example of usage would be:
var formulaImageUrl = chrome.extension.getURL("formula.png");
var codeImageUrl = chrome.extension.getURL("code.png");
inject([
scriptFromSource("var formulaImageUrl = '" + formulaImageUrl + "';"),
scriptFromSource("var codeImageUrl = '" + codeImageUrl + "';"),
scriptFromFile("EqEditor/eq_editor-lite-17.js"),
scriptFromFile("EqEditor/eq_config.js"),
scriptFromFile("highlight/highlight.pack.js"),
scriptFromFile("injected.js")
]);
Actually, I'm kinda new to JS, so feel free to ping me to the better ways.
You can invoke private method with reflection. Modifying the last bit of the posted code:
Method method = object.getClass().getDeclaredMethod(methodName);
method.setAccessible(true);
Object r = method.invoke(object);
There are a couple of caveats. First, getDeclaredMethod
will only find method declared in the current Class
, not inherited from supertypes. So, traverse up the concrete class hierarchy if necessary. Second, a SecurityManager
can prevent use of the setAccessible
method. So, it may need to run as a PrivilegedAction
(using AccessController
or Subject
).
Let me give you another tutorial written by me. It answers your question, but also makes an explanation why we are doing some of the things. I also tried to make it concise.
So you have a list_of_documents
which is just an array of strings and another document
which is just a string. You need to find such document from the list_of_documents
that is the most similar to document
.
Let's combine them together: documents = list_of_documents + [document]
Let's start with dependencies. It will become clear why we use each of them.
from nltk.corpus import stopwords
import string
from nltk.tokenize import wordpunct_tokenize as tokenize
from nltk.stem.porter import PorterStemmer
from sklearn.feature_extraction.text import TfidfVectorizer
from scipy.spatial.distance import cosine
One of the approaches that can be uses is a bag-of-words approach, where we treat each word in the document independent of others and just throw all of them together in the big bag. From one point of view, it looses a lot of information (like how the words are connected), but from another point of view it makes the model simple.
In English and in any other human language there are a lot of "useless" words like 'a', 'the', 'in' which are so common that they do not possess a lot of meaning. They are called stop words and it is a good idea to remove them. Another thing that one can notice is that words like 'analyze', 'analyzer', 'analysis' are really similar. They have a common root and all can be converted to just one word. This process is called stemming and there exist different stemmers which differ in speed, aggressiveness and so on. So we transform each of the documents to list of stems of words without stop words. Also we discard all the punctuation.
porter = PorterStemmer()
stop_words = set(stopwords.words('english'))
modified_arr = [[porter.stem(i.lower()) for i in tokenize(d.translate(None, string.punctuation)) if i.lower() not in stop_words] for d in documents]
So how will this bag of words help us? Imagine we have 3 bags: [a, b, c]
, [a, c, a]
and [b, c, d]
. We can convert them to vectors in the basis [a, b, c, d]
. So we end up with vectors: [1, 1, 1, 0]
, [2, 0, 1, 0]
and [0, 1, 1, 1]
. The similar thing is with our documents (only the vectors will be way to longer). Now we see that we removed a lot of words and stemmed other also to decrease the dimensions of the vectors. Here there is just interesting observation. Longer documents will have way more positive elements than shorter, that's why it is nice to normalize the vector. This is called term frequency TF, people also used additional information about how often the word is used in other documents - inverse document frequency IDF. Together we have a metric TF-IDF which have a couple of flavors. This can be achieved with one line in sklearn :-)
modified_doc = [' '.join(i) for i in modified_arr] # this is only to convert our list of lists to list of strings that vectorizer uses.
tf_idf = TfidfVectorizer().fit_transform(modified_doc)
Actually vectorizer allows to do a lot of things like removing stop words and lowercasing. I have done them in a separate step only because sklearn does not have non-english stopwords, but nltk has.
So we have all the vectors calculated. The last step is to find which one is the most similar to the last one. There are various ways to achieve that, one of them is Euclidean distance which is not so great for the reason discussed here. Another approach is cosine similarity. We iterate all the documents and calculating cosine similarity between the document and the last one:
l = len(documents) - 1
for i in xrange(l):
minimum = (1, None)
minimum = min((cosine(tf_idf[i].todense(), tf_idf[l + 1].todense()), i), minimum)
print minimum
Now minimum will have information about the best document and its score.
private boolean checkDateLimit() {
long CurrentDateInMilisecond = System.currentTimeMillis(); // Date 1
long Date1InMilisecond = Date1.getTimeInMillis(); //Date2
if (CurrentDateInMilisecond <= Date1InMilisecond) {
return true;
} else {
return false;
}
}
// Convert both date into milisecond value .
You can add this line to eclipse.ini
:
-vm
D:/work/Java/jdk1.6.0_13/bin/javaw.exe <-- change to your JDK actual path
-vmargs <-- needs to be after -vm <path>
But it's worth setting JAVA_HOME
and JRE_HOME
anyway because it may not work as if the path environment points to a different java version.
Because the next one to complain will be Maven, etc.
See the Android Color resource documentation for reference.
Basically you have the option to set the transparency (opacity) and the color either directly in the layout or using resources references.
The hex value that you set it to is composed of 3 to 4 parts:
Alpha (opacity), i'll refer to that as aa
Red, i'll refer to it as rr
Green, i'll refer to it as gg
Blue, i'll refer to it as bb
Without an alpha (transparency) value:
android:background="#rrggbb"
or as resource:
<color name="my_color">#rrggbb</color>
With an alpha (transparency) value:
android:background="#aarrggbb"
or as resource:
<color name="my_color">#aarrggbb</color>
The alpha value for full transparency is 00 and the alpha value for no transparency is FF.
See full range of hex values below:
100% — FF
95% — F2
90% — E6
85% — D9
80% — CC
75% — BF
70% — B3
65% — A6
60% — 99
55% — 8C
50% — 80
45% — 73
40% — 66
35% — 59
30% — 4D
25% — 40
20% — 33
15% — 26
10% — 1A
5% — 0D
0% — 00
You can experiment with values in between those.
As David pointed out, I would go with KB in most cases.
php_value post_max_size 2K
Note: my form is simple, just a few text boxes, not long text.
(PHP shorthand for KB is K, as outlined here.)
my 2¢ quick global fix:
// drop down in responsive table
(function () {
$('.table-responsive').on('shown.bs.dropdown', function (e) {
var $table = $(this),
$menu = $(e.target).find('.dropdown-menu'),
tableOffsetHeight = $table.offset().top + $table.height(),
menuOffsetHeight = $menu.offset().top + $menu.outerHeight(true);
if (menuOffsetHeight > tableOffsetHeight)
$table.css("padding-bottom", menuOffsetHeight - tableOffsetHeight);
});
$('.table-responsive').on('hide.bs.dropdown', function () {
$(this).css("padding-bottom", 0);
})
})();
Explications: When a dropdown-menu inside a '.table-responsive' is shown, it calculate the height of the table and expand it (with padding) to match the height required to display the menu. The menu can be any size.
In my case, this is not the table that has the '.table-responsive' class, it's a wrapping div:
<div class="table-responsive" style="overflow:auto;">
<table class="table table-hover table-bordered table-condensed server-sort">
So the $table var in the script is actually a div! (just to be clear... or not) :)
Note: I wrap it in a function so my IDE can collapse function ;) but it's not mandatory!
An example based on Chuck's answer:
myIntToStr :: Int -> String
myIntToStr x
| x < 3 = show x ++ " is less than three"
| otherwise = "normal"
Note that without the show
the third line will not compile.
Right-click on your project, select Maven -> Remove Maven Nature.
Open you terminal, go to your project folder and do mvn eclipse:clean
Right click on your Project and select “Configure -> Convert into Maven Project”
Now you got “Unsupported IClasspathEntry kind=4 Eclipse Scala” disappear.
Sounds to me like at least one of those tables has defined UserID
as a uniqueidentifier
, not an int
. Did you check the data in each table? What does SELECT TOP 1 UserID FROM
each table yield? An int
or a GUID
?
EDIT
I think you have built a procedure based on all tables that contain a column named UserID. I think you should not have included the aspnet_Membership
table in your script, since it's not really one of "your" tables.
If you meant to design your tables around the aspnet_Membership
database, then why are the rest of the columns int
when that table clearly uses a uniqueidentifier
for the UserID
column?
For a <input type='text'>
element:
input { font-size: 18px; }
or for a <textarea>
:
textarea { font-size: 18px; }
or for a <select>
:
select { font-size: 18px; }
you get the drift.
@jjnguy's answer is correct in most circumstances. You won't ever see a null
String in the argument array (or a null
array) if main
is called by running the application is run from the command line in the normal way.
However, if some other part of the application calls a main
method, it is conceivable that it might pass a null
argument or null
argument array.
However(2), this is clearly a highly unusual use-case, and it is an egregious violation of the implied contract for a main
entry-point method. Therefore, I don't think you should bother checking for null
argument values in main
. In the unlikely event that they do occur, it is acceptable for the calling code to get a NullPointerException
. After all, it is a bug in the caller to violate the contract.
There was an issue in coredns
pod, I deleted such pod by
kubectl delete pod -n=kube-system coredns-fb8b8dccf-8ggcf
Its pod will restart automatically.
Heres what i did wrong:
1) make sure its NOT in a [C:\Program Files (x86)] it should be in [C:\Program Files] i am not 100% if that could break it but you never know.
2) There were 3 things i needed to do in my Environment Variables to get it to work
I got error (file already exists --force to overwrite
) after running the following code:
npm cache clean --force
npm install -g @angular/cli
I solved it using :
npm i -g --force npm
Make sure to run the first commands to flush the cache of npm.
Everything is cool, man. The 'u' is a good thing, it indicates that the string is of type Unicode in python 2.x.
http://docs.python.org/2/howto/unicode.html#the-unicode-type
For whatever reason the above would not work for me. This is what did:
if (tabControl.SelectedTab.Name == "tabName" )
{
.. do stuff
}
where tabControl.SelectedTab.Name is the name attribute assigned to the page in the tabcontrol itself.
You can customize the img
class and the max-width
property:
img{
width: 100%;
max-width: 800px;
}
max-width
is important. Otherwise your image will scale too much for the desktop. There isn't any need to put in the height
property, because by default it is auto mode.
EventLog.SourceExists
enumerates through the subkeys of HKLM\SYSTEM\CurrentControlSet\services\eventlog
to see if it contains a subkey with the specified name. If the user account under which the code is running does not have read access to a subkey that it attempts to access (in your case, the Security
subkey) before finding the target source, you will see an exception like the one you have described.
The usual approach for handling such issues is to register event log sources at installation time (under an administrator account), then assume that they exist at runtime, allowing any resulting exception to be treated as unexpected if a target event log source does not actually exist at runtime.
As you comment in your question, awk
is really the way to go. To use cut
is possible together with tr -s
to squeeze spaces, as kev's answer shows.
Let me however go through all the possible combinations for future readers. Explanations are at the Test section.
tr -s ' ' < file | cut -d' ' -f4
awk '{print $4}' file
while read -r _ _ _ myfield _
do
echo "forth field: $myfield"
done < file
sed -r 's/^([^ ]*[ ]*){3}([^ ]*).*/\2/' file
Given this file, let's test the commands:
$ cat a
this is line 1 more text
this is line 2 more text
this is line 3 more text
this is line 4 more text
$ cut -d' ' -f4 a
is
# it does not show what we want!
$ tr -s ' ' < a | cut -d' ' -f4
1
2 # this makes it!
3
4
$
$ awk '{print $4}' a
1
2
3
4
This reads the fields sequentially. By using _
we indicate that this is a throwaway variable as a "junk variable" to ignore these fields. This way, we store $myfield
as the 4th field in the file, no matter the spaces in between them.
$ while read -r _ _ _ a _; do echo "4th field: $a"; done < a
4th field: 1
4th field: 2
4th field: 3
4th field: 4
This catches three groups of spaces and no spaces with ([^ ]*[ ]*){3}
. Then, it catches whatever coming until a space as the 4th field, that it is finally printed with \1
.
$ sed -r 's/^([^ ]*[ ]*){3}([^ ]*).*/\2/' a
1
2
3
4
If you're needing something simple, would this fit the bill?
Map<K, V> myCache = Collections.synchronizedMap(new WeakHashMap<K, V>());
It wont save to disk, but you said you wanted simple...
Links:
(As Adam commented, synchronising a map has a performance hit. Not saying the idea doesn't have hairs on it, but would suffice as a quick and dirty solution.)
I'm doing a git repository statistics generator in ruby, it's called git_stats.
You can find examples generated for some repositories on project page.
Here is a list of what it can do:
If you have any idea what to add or improve please let me know, I would appreciate any feedback.
The fix is to stop using correlated subqueries and use joins instead. Correlated subqueries are essentially cursors as they cause the query to run row-by-row and should be avoided.
You may need a derived table in the join in order to get the value you want in the field if you want only one record to match, if you need both values then the ordinary join
will do that but you will get multiple records for the same id in the results set. If you only want one, you need to decide which one and do that in the code, you could use a top 1
with an order by
, you could use max()
, you could use min()
, etc, depending on what your real requirement for the data is.
With native JavaScript:
newelement = element.cloneNode(bool)
where the Boolean indicates whether to clone child nodes or not.
If you are OK with HTML5 it can be accomplished without any JavaScript code at all...
<input type="number" name="textWeight" id="txtWeight" max="5" min="0" />
Otherwise, something like...
var input = document.getElementById('txtWeight');
input.addEventListener('change', function(e) {
var num = parseInt(this.value, 10),
min = 0,
max = 100;
if (isNaN(num)) {
this.value = "";
return;
}
this.value = Math.max(num, min);
this.value = Math.min(num, max);
});
This will only reset the values when the input looses focus, and clears out any input that can't be parsed as an integer...
OBLIGATORY WARNING
You should always perform adequate server-side validation on inputs, regardless of client-side validation.
In order to make
http://localhost:8080
work, tomcat has to be started first. You can check server.xml file in conf folder for the port information. You can search if tomcat is installed on your machine. Just go to start and then type tomcat. If it is installed it will give you the directory where it is installed. Then you can select that path and run it from command prompt. Example if tomcat is installed in C:\Programfile\tomcat. You need to set this path in command prompt,go to bin folder and startup. Example: C:\Programfile\tomcat\bin\startup. Else you can also run it by directly going to the path and run startup batch file.
if path.exists(Score_file):
try :
with open(Score_file , "rb") as prev_Scr:
return Unpickler(prev_Scr).load()
except EOFError :
return dict()
You can use .eq()
and .after()
like this:
$('#my_table > tbody > tr').eq(i-1).after(html);
The indexes are 0 based, so to be the 4th row, you need i-1
, since .eq(3)
would be the 4th row, you need to go back to the 3rd row (2
) and insert .after()
that.
You can do this:
if ($('#form_id :checkbox:checked').length > 0){
// one or more checkboxes are checked
}
else{
// no checkboxes are checked
}
Where:
Presumably you mean heap from a memory allocation point of view, not from a data structure point of view (the term has multiple meanings).
A very simple explanation is that the heap is the portion of memory where dynamically allocated memory resides (i.e. memory allocated via malloc
). Memory allocated from the heap will remain allocated until one of the following occurs:
free
'dIf all references to allocated memory are lost (e.g. you don't store a pointer to it anymore), you have what is called a memory leak. This is where the memory has still been allocated, but you have no easy way of accessing it anymore. Leaked memory cannot be reclaimed for future memory allocations, but when the program ends the memory will be free'd up by the operating system.
Contrast this with stack memory which is where local variables (those defined within a method) live. Memory allocated on the stack generally only lives until the function returns (there are some exceptions to this, e.g. static local variables).
You can find more information about the heap in this article.
You can try onload event. It raised when all scripts has been loaded :
window.onload = function () {
//jquery ready for use here
}
But keep in mind, that you may override others scripts where window.onload using.
(inline if) in java won't work if you are using 'if' statement .. the right syntax is in the following example:
int y = (c == 19) ? 7 : 11 ;
or
String y = (s > 120) ? "Slow Down" : "Safe";
System.out.println(y);
as You can see the type of the variable Y is the same as the return value ...
in your case it is better to use the normal if statement not inline if as it is in the pervious answer without "?"
if (compareChar(curChar, toChar("0"))) getButtons().get(i).setText("§");
For some reason when you try to check for a jquery DOM element it won't work properly. So rewriting the function would do the trick:
function isObjectInArray(array,obj){
for(var i = 0; i < array.length; i++) {
if($(obj).is(array[i])) {
return i;
}
}
return -1;
}
Figure sizes are specified in inches and can be included as a global option of the document output format. For example:
---
title: "My Document"
output:
html_document:
fig_width: 6
fig_height: 4
---
And the plot's size in the graphic device can be increased at the chunk level:
```{r, fig.width=14, fig.height=12} #Expand the plot width to 14 inches
ggplot(aes(x=mycolumn1, y=mycolumn2)) + #specify the x and y aesthetic
geom_line(size=2) + #makes the line thicker
theme_grey(base_size = 25) #increases the size of the font
```
You can also use the out.width
and out.height
arguments to directly define the size of the plot in the output file:
```{r, out.width="200px", out.height="200px"} #Expand the plot width to 200 pixels
ggplot(aes(x=mycolumn1, y=mycolumn2)) + #specify the x and y aesthetic
geom_line(size=2) + #makes the line thicker
theme_grey(base_size = 25) #increases the size of the font
```
for each S3ObjecrSummary in objectListing.getObjectSummaries()
it's looping through each item in the collection
SELECT col1, col2, IF( action = 2 AND state = 0, 1, 0 ) AS state from tbl1;
OR
SELECT col1, col2, (case when (action = 2 and state = 0) then 1 else 0 end) as state from tbl1;
both results will same....
If working on EJB client library:
You need to mention the argument for getting the initial context.
InitialContext ctx = new InitialContext();
If you do not, it will look in the project folder for properties file. Also you can include the properties credentials or values in your class file itself as follows:
Properties props = new Properties();
props.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
props.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
props.put(Context.PROVIDER_URL, "jnp://localhost:1099");
InitialContext ctx = new InitialContext(props);
URL_PKG_PREFIXES: Constant that holds the name of the environment property for specifying the list of package prefixes to use when loading in URL context factories.
The EJB client library is the primary library to invoke remote EJB components.
This library can be used through the InitialContext. To invoke EJB components the library creates an EJB client context via a URL context factory. The only necessary configuration is to parse the value org.jboss.ejb.client.naming for the java.naming.factory.url.pkgs property to instantiate an InitialContext.
I got this error because the instruction on the Web was
git checkout https://github.com/veripool/verilog-mode
which I did in a directory where (on my own initiative) i had run git init
.
The correct Web instruction (for newbies like me) should have been
git clone https://github.com/veripool/verilog-mode
You can use CURL for this purpose see the example code:
$url = "your url";
$content = json_encode("your data to be sent");
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER,
array("Content-type: application/json"));
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $content);
$json_response = curl_exec($curl);
$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
if ( $status != 201 ) {
die("Error: call to URL $url failed with status $status, response $json_response, curl_error " . curl_error($curl) . ", curl_errno " . curl_errno($curl));
}
curl_close($curl);
$response = json_decode($json_response, true);
SELECT TIMESTAMPDIFF(SECOND,'2018-01-19 14:17:15','2018-01-20 14:17:15');
Second approach
SELECT ( DATEDIFF('1993-02-20','1993-02-19')*( 24*60*60) )AS 'seccond';
CURRENT_TIME() --this will return current Date
DATEDIFF('','') --this function will return DAYS and in 1 day there are 24hh 60mm 60sec
I have to pass two parameters like:
/Controller/Action/Param1Value/Param2Value
This way:
@Html.ActionLink(
linkText,
actionName,
controllerName,
routeValues: new {
Param1Name= Param1Value,
Param2Name = Param2Value
},
htmlAttributes: null
)
will generate this url
/Controller/Action/Param1Value?Param2Name=Param2Value
I used a workaround method by merging parameter two in parameter one and I get what I wanted:
@Html.ActionLink(
linkText,
actionName,
controllerName,
routeValues: new {
Param1Name= "Param1Value / Param2Value" ,
},
htmlAttributes: null
)
And I get :
/Controller/Action/Param1Value/Param2Value
I solved this in an elegant way with RxAndroid. Receive an observer in the constructor of the DialogFragment and suscribe to observable and push the value when the callback being called. Then, in your Fragment create an inner class of the Observer, create an instance and pass it in the constructor of the DialogFragment. I used WeakReference in the observer to avoid memory leaks. Here is the code:
BaseDialogFragment.java
import java.lang.ref.WeakReference;
import io.reactivex.Observer;
public class BaseDialogFragment<O> extends DialogFragment {
protected WeakReference<Observer<O>> observerRef;
protected BaseDialogFragment(Observer<O> observer) {
this.observerRef = new WeakReference<>(observer);
}
protected Observer<O> getObserver() {
return observerRef.get();
}
}
DatePickerFragment.java
public class DatePickerFragment extends BaseDialogFragment<Integer>
implements DatePickerDialog.OnDateSetListener {
public DatePickerFragment(Observer<Integer> observer) {
super(observer);
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
// Create a new instance of DatePickerDialog and return it
return new DatePickerDialog(getActivity(), this, year, month, day);
}
@Override
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
if (getObserver() != null) {
Observable.just(month).subscribe(getObserver());
}
}
}
MyFragment.java
//Show the dialog fragment when the button is clicked
@OnClick(R.id.btn_date)
void onDateClick() {
DialogFragment newFragment = new DatePickerFragment(new OnDateSelectedObserver());
newFragment.show(getFragmentManager(), "datePicker");
}
//Observer inner class
private class OnDateSelectedObserver implements Observer<Integer> {
@Override
public void onSubscribe(Disposable d) {
}
@Override
public void onNext(Integer integer) {
//Here you invoke the logic
}
@Override
public void onError(Throwable e) {
}
@Override
public void onComplete() {
}
}
You can see the source code here: https://github.com/andresuarezz26/carpoolingapp
Be careful when setting default values on property definition! Do it in constructor instead, to keep it problem-free. If you define it on property definition, then persist the object to the database, then make a partial load, then not loaded properties will again have the default value. That is dangerous if you want to persist the object again.
All you need to do is use the file object as an iterator.
for line in open("log.txt"):
do_something_with(line)
Even better is using context manager in recent Python versions.
with open("log.txt") as fileobject:
for line in fileobject:
do_something_with(line)
This will automatically close the file as well.
Swift 4 You cannot compare Any to nil.Because an optional can be nil and hence it always succeeds to true. The only way is to cast it to your desired object and compare it to nil.
if (someone as? String) != nil
{
//your code`enter code here`
}
The Powershell way of enabling the features (Windows Server 2012 +) - trim as needed:
Install-WindowsFeature NET-Framework-Core
Install-WindowsFeature Web-Server -IncludeAllSubFeature
Install-WindowsFeature NET-Framework-Features -IncludeAllSubFeature
Install-WindowsFeature NET-Framework-45-ASPNET -IncludeAllSubFeature
Install-WindowsFeature Application-Server -IncludeAllSubFeature
Install-WindowsFeature MSMQ -IncludeAllSubFeature
Install-WindowsFeature WAS -IncludeAllSubFeature
called_from
must be null
. Add a test against that condition like
if (called_from != null && called_from.equalsIgnoreCase("add")) {
or you could use Yoda conditions (per the Advantages in the linked Wikipedia article it can also solve some types of unsafe null
behavior they can be described as placing the constant portion of the expression on the left side of the conditional statement)
if ("add".equalsIgnoreCase(called_from)) { // <-- safe if called_from is null
You could do the opposite of what you proposed.
location (/test)/ {
set $folder $1;
}
location (/test_/something {
set $folder $1;
}
Try this:
$('input:radio[name="mygroup"][value="5"]').attr('checked',true);
A problem with not putting 'return' explicitly at the end is that if one adds additional statements at the end of the method, suddenly the return value is wrong:
foo <- function() {
dosomething()
}
This returns the value of dosomething()
.
Now we come along the next day and add a new line:
foo <- function() {
dosomething()
dosomething2()
}
We wanted our code to return the value of dosomething()
, but instead it no longer does.
With an explicit return, this becomes really obvious:
foo <- function() {
return( dosomething() )
dosomething2()
}
We can see that there is something strange about this code, and fix it:
foo <- function() {
dosomething2()
return( dosomething() )
}
for horizontal line on the layout :
<View
android:id="@+id/View03"
android:layout_width="fill_parent"
android:layout_height="5dip"
android:background="#0f0" />
for vertical line on the layout :
<View
android:id="@+id/View04"
android:layout_width="5dip"
android:layout_height="fill_parent"
android:background="#0f0" />
Another alternative is to view the status of the remote branch using
git show-branch remote/branch
to use it as a comparison you could see git show-branch *branch
to see the branch in all remotes as well as your repository! check out this answer for more https://stackoverflow.com/a/3278427/2711378
As I understand your question, You have one table with column as datatype decimal(18,9). And the column contains the data as follows:-
12.00
15.00
18.00
20.00
Now if you want to show record on UI without decimal value means like (12,15,18,20) then there are two options:-
To apply, First very simple just use the cast in select clause
select CAST(count AS INT) from tablename;
But if you want to update your column data with int value then you have to update you column datatype
and to do that
ALTER TABLE tablename ALTER COLUMN columnname decimal(9,0)
Then execute this
UPDATE tablename
SET count = CAST(columnname AS INT)
The Java Language Specification does not guarantee that the JVM will start a GC when you call System.gc()
. This is the reason of this "may or may not decide to do a GC at that point".
Now, if you look at OpenJDK source code, which is the backbone of Oracle JVM, you will see that a call to System.gc()
does start a GC cycle. If you use another JVM, such as J9, you have to check their documentation to find out the answer. For instance, Azul's JVM has a garbage collector that runs continuously, so a call to System.gc()
won't do anything
Some other answer mention starting a GC in JConsole or VisualVM. Basically, these tools make a remote call to System.gc()
.
Usually, you don't want to start a garbage collection cycle from your code, as it messes up with the semantics of your application. Your application does some business stuff, the JVM takes care of memory management. You should keep those concerns separated (don't make your application do some memory management, focus on business).
However, there are few cases where a call to System.gc()
might be understandable. Consider, for example, microbenchmarks. No-one wants to have a GC cycle to happen in the middle of a microbenchmark. So you may trigger a GC cycle between each measurement to make sure every measurement starts with an empty heap.
For getting the String value [Name]:
EnumDisplayStatus enumDisplayStatus = (EnumDisplayStatus)GetDBValue();
string stringValue = $"{enumDisplayStatus:G}";
And for getting the enum value:
string stringValue = $"{enumDisplayStatus:D}";
SetDBValue(Convert.ToInt32(stringValue ));
If $arrayofStringsNotInterestedIn is an [array] you should use -notcontains:
Get-Content $FileName | foreach-object { `
if ($arrayofStringsNotInterestedIn -notcontains $_) { $) }
or better (IMO)
Get-Content $FileName | where { $arrayofStringsNotInterestedIn -notcontains $_}
If you would like to 'add' additional items to a page, you may want to create an array of maps. This is how I created an array of maps and then added results to it:
import { Product } from '../models/product';
products: Array<Product>; // Initialize the array.
[...]
let i = 0;
this.service.products( i , (result) => {
if ( i == 0 ) {
// Create the first element of the array.
this.products = Array(result);
} else {
// Add to the array of maps.
this.products.push(result);
}
});
Where product.ts look like...
export class Product {
id: number;
[...]
}
I'm now using RxJS 5.5.7 in an Angular application and using finalize
operator has a weird behavior for my use case since is fired before success or error callbacks.
Simple example:
// Simulate an AJAX callback...
of(null)
.pipe(
delay(2000),
finalize(() => {
// Do some work after complete...
console.log('Finalize method executed before "Data available" (or error thrown)');
})
)
.subscribe(
response => {
console.log('Data available.');
},
err => {
console.error(err);
}
);
I have had to use the add
medhod in the subscription to accomplish what I want. Basically a finally
callback after the success or error callbacks are done. Like a try..catch..finally
block or Promise.finally
method.
Simple example:
// Simulate an AJAX callback...
of(null)
.pipe(
delay(2000)
)
.subscribe(
response => {
console.log('Data available.');
},
err => {
console.error(err);
}
);
.add(() => {
// Do some work after complete...
console.log('At this point the success or error callbacks has been completed.');
});
You can't do it with pure html/javascript. This is because you have a seperate connection to the webserver to retrieve a separate file (the image) and a normal webserver will serve the file with content headers set so that the browser reading the content type will decide that the type can be handled internally.
The way to force the browser not to handle the file internally is to change the headers (content-disposition prefereably, or content-type) so the browser will not try to handle the file internally. You can either do this by writing a script on the webserver that dynamically sets the headers (i.e. download.php) or by configuring the webserver to return different headers for the file you want to download. You can do this on a per-directory basis on the webserver, which would allow you to get away without writing any php or javascript - simply have all your download images in that one location.
In your destination field you want to use VLOOKUP like so:
=VLOOKUP(Sheet1!A1:A100,Sheet2!A1:F100,6,FALSE)
VLOOKUP Arguments:
In order to scale your images appropriately based on the container size, use the following:
background-size: contain;
background-repeat: no-repeat;
By default Build location
is in Derived Data
.
Please note: a path to a product can be changed if you delete DerivedData during development process and rebuild it again.
Xcode -> Preferences... -> Locations
You can change the location of Build location
. It will have an effect on the whole workspace
File -> Project/Workspace Settings... -> Advanced
You can change the location of Target using:
Project editor -> select a target -> Build Settings -> Per-configuration Build Products Path
The default value is$(BUILD_DIR)/$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)
It makes sense if you want to create an autonomic Build location
Xcode 10.2.1
There is no way to store objects in SharedPreferences, What i did is to create a public class, put all the parameters i need and create setters and getters, i was able to access my objects,
An alternative approach to the one offered above by Mark Longair is to use an alias that will run any git command, on any remote, with an alternative SSH key. The idea is basically to switch your SSH identity when running the git commands.
Advantages relative to the host alias approach in the other answer:
remote
explicitly.I use a few small scripts and a git alias admin
. That way I can do, for example:
git admin push
To push to the default remote using the alternative ("admin") SSH key. Again, you could use any command (not just push
) with this alias. You could even do git admin clone ...
to clone a repository that you would only have access to using your "admin" key.
Step 1: Create the alternative SSH keys, optionally set a passphrase in case you're doing this on someone else's machine.
Step 2: Create a script called “ssh-as.sh” that runs stuff that uses SSH, but uses a given SSH key rather than the default:
#!/bin/bash
exec ssh ${SSH_KEYFILE+-i "$SSH_KEYFILE"} "$@"
Step 3: Create a script called “git-as.sh” that runs git commands using the given SSH key.
#!/bin/bash
SSH_KEYFILE=$1 GIT_SSH=${BASH_SOURCE%/*}/ssh-as.sh exec git "${@:2}"
Step 4: Add an alias (using something appropriate for “PATH_TO_SCRIPTS_DIR” below):
# Run git commands as the SSH identity provided by the keyfile ~/.ssh/admin
git config --global alias.admin \!"PATH_TO_SCRIPTS_DIR/git-as.sh ~/.ssh/admin"
More details at: http://noamlewis.wordpress.com/2013/01/24/git-admin-an-alias-for-running-git-commands-as-a-privileged-ssh-identity/
You could just put the letter X in the HTML inside the div and then style it with css.
See JSFiddle: http://jsfiddle.net/uSwbN/
HTML:
<div id="orangeBox">
<span id="x">X</span>
</div>
CSS:
#orangeBox {
background: #f90;
color: #fff;
font-family: 'Helvetica', 'Arial', sans-serif;
font-size: 2em;
font-weight: bold;
text-align: center;
width: 40px;
height: 40px;
border-radius: 5px;
}
Your code is fine, but the problem is inside the batch file.
You have to show the content of the bat file, your problem is in the paths inside the bat file.
Downgrading Node to 0.10.36 should do it per this thread on the node-sass github page: https://github.com/sass/node-sass/issues/490#issuecomment-70388754
If you have NVM you can just:
nvm install 0.10
If you don't, you can find NVM and instructions here: https://www.npmjs.com/package/nvm
an alternative would be to do something like:
SELECT
CAST(P0.seconds as bigint) as seconds
FROM
(
SELECT
seconds
FROM
TableName
WHERE
ISNUMERIC(seconds) = 1
) P0
Look in the Python re documentation for lookaheads (?=...)
and lookbehinds (?<=...)
-- I'm pretty sure they're what you want. They match strings, but do not "consume" the bits of the strings they match.
JetBrains (of ReSharper fame) has been working on a coverage tool for a little while called dotCover. It's showing a great deal of promise.
Starting with Jackson version 2.4 and above there have been some changes. Here is how you do it now:
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
..........................................................................
ObjectMapper mapper = new ObjectMapper();
// to prevent exception when encountering unknown property:
mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
Note: The @annotation based solution remains the same so if you like to use that see the other answers.
For more information see the 10 minutes Configuration tutorial at:
https://github.com/FasterXML/jackson-databind
For someone who is new to ORDER BY with CASE this may be useful
ORDER BY
CASE WHEN GRADE = 'A' THEN 0
WHEN GRADE = 'B' THEN 1
ELSE 2 END
Not sure why what you have doesn't work, but you can add
overflow: auto;
to the outer div.
The only way I've seen it done is if you do this:
for /f "delims=" %a in ('ver') do @set foobar=%a
ver
is the version command for Windows and on my system it produces:
Microsoft Windows [Version 6.0.6001]
"SELECT Applicant.applicantId, Applicant.lastName, Applicant.firstName, Applicant.middleName, Applicant.status,Applicant.companyId, Company.name, Applicant.createDate FROM (Applicant INNER JOIN Company ON Applicant.companyId = Company.companyId) WHERE Applicant.createDate between '" +dateTimePicker1.Text.ToString() + "'and '"+dateTimePicker2.Text.ToString() +"'";
this is what i did!!
Recently I found this approach to writing logs in android, which I think is super awesome.
public static final boolean FORCED_LOGGING = true;
private static final int CALLER_STACK_INDEX = 3;
public static void showLogs(String message) {
if (FORCED_LOGGING) {
StackTraceElement caller = Thread.currentThread().getStackTrace()[CALLER_STACK_INDEX];
String fullClassName = caller.getClassName();
String className = fullClassName.substring(fullClassName.lastIndexOf('.') + 1);
String methodName = caller.getMethodName();
int lineNumber = caller.getLineNumber();
Log.i("*** " + className + "." + methodName + "():" + lineNumber + "\n" , message);
}
}
If you are allowed to use LINQ, take a look at the following example. It creates two DataTables with integer columns, fills them with some records, join them using LINQ query and outputs them to Console.
DataTable dt1 = new DataTable();
dt1.Columns.Add("CustID", typeof(int));
dt1.Columns.Add("ColX", typeof(int));
dt1.Columns.Add("ColY", typeof(int));
DataTable dt2 = new DataTable();
dt2.Columns.Add("CustID", typeof(int));
dt2.Columns.Add("ColZ", typeof(int));
for (int i = 1; i <= 5; i++)
{
DataRow row = dt1.NewRow();
row["CustID"] = i;
row["ColX"] = 10 + i;
row["ColY"] = 20 + i;
dt1.Rows.Add(row);
row = dt2.NewRow();
row["CustID"] = i;
row["ColZ"] = 30 + i;
dt2.Rows.Add(row);
}
var results = from table1 in dt1.AsEnumerable()
join table2 in dt2.AsEnumerable() on (int)table1["CustID"] equals (int)table2["CustID"]
select new
{
CustID = (int)table1["CustID"],
ColX = (int)table1["ColX"],
ColY = (int)table1["ColY"],
ColZ = (int)table2["ColZ"]
};
foreach (var item in results)
{
Console.WriteLine(String.Format("ID = {0}, ColX = {1}, ColY = {2}, ColZ = {3}", item.CustID, item.ColX, item.ColY, item.ColZ));
}
Console.ReadLine();
// Output:
// ID = 1, ColX = 11, ColY = 21, ColZ = 31
// ID = 2, ColX = 12, ColY = 22, ColZ = 32
// ID = 3, ColX = 13, ColY = 23, ColZ = 33
// ID = 4, ColX = 14, ColY = 24, ColZ = 34
// ID = 5, ColX = 15, ColY = 25, ColZ = 35
The BitmapFactory.decode* methods, discussed in the Load Large Bitmaps Efficiently lesson, should not be executed on the main UI thread if the source data is read from disk or a network location (or really any source other than memory). The time this data takes to load is unpredictable and depends on a variety of factors (speed of reading from disk or network, size of image, power of CPU, etc.). If one of these tasks blocks the UI thread, the system flags your application as non-responsive and the user has the option of closing it (see Designing for Responsiveness for more information).
I found a very beautiful recursive (even functional) Breadth-First traversal related algorithm. Not my idea, but i think it should be mentioned in this topic.
Chris Okasaki explains his breadth-first numbering algorithm from ICFP 2000 at http://okasaki.blogspot.de/2008/07/breadth-first-numbering-algorithm-in.html very clearly with only 3 pictures.
The Scala implementation of Debasish Ghosh, which i found at http://debasishg.blogspot.de/2008/09/breadth-first-numbering-okasakis.html, is:
trait Tree[+T]
case class Node[+T](data: T, left: Tree[T], right: Tree[T]) extends Tree[T]
case object E extends Tree[Nothing]
def bfsNumForest[T](i: Int, trees: Queue[Tree[T]]): Queue[Tree[Int]] = {
if (trees.isEmpty) Queue.Empty
else {
trees.dequeue match {
case (E, ts) =>
bfsNumForest(i, ts).enqueue[Tree[Int]](E)
case (Node(d, l, r), ts) =>
val q = ts.enqueue(l, r)
val qq = bfsNumForest(i+1, q)
val (bb, qqq) = qq.dequeue
val (aa, tss) = qqq.dequeue
tss.enqueue[org.dg.collection.BFSNumber.Tree[Int]](Node(i, aa, bb))
}
}
}
def bfsNumTree[T](t: Tree[T]): Tree[Int] = {
val q = Queue.Empty.enqueue[Tree[T]](t)
val qq = bfsNumForest(1, q)
qq.dequeue._1
}
You have a couple of questions here, so I'll address them separately:
My general rule is: don't. This is something which all but requires a second table (or third) with a foreign key. Sure, it may seem easier now, but what if the use case comes along where you need to actually query for those items individually? It also means that you have more options for lazy instantiation and you have a more consistent experience across multiple frameworks/languages. Further, you are less likely to have connection timeout issues (30,000 characters is a lot).
You mentioned that you were thinking about using ENUM. Are these values fixed? Do you know them ahead of time? If so this would be my structure:
Base table (what you have now):
| id primary_key sequence
| -- other columns here.
Items table:
| id primary_key sequence
| descript VARCHAR(30) UNIQUE
Map table:
| base_id bigint
| items_id bigint
Map table would have foreign keys so base_id maps to Base table, and items_id would map to the items table.
And if you'd like an easy way to retrieve this from a DB, then create a view which does the joins. You can even create insert and update rules so that you're practically only dealing with one table.
If you have to do something like this, why not just use a character delineated string? It will take less processing power than a CSV, XML, or JSON, and it will be shorter.
Personally, I would use TEXT
. It does not sound like you'd gain much by making this a BLOB
, and TEXT
, in my experience, is easier to read if you're using some form of IDE.
The DateFormat
class has a parse
method.
See DateFormat for more information.
asort()
- Maintains key association: yes.
sort()
- Maintains key association: no.
In the terminal, you are running the node application and it is running your script. That is a very different execution environment than directly running your script in the browser. While the Javascript language is largely the same (both V8 if you're running the Chrome browser), the rest of the execution environment such as libraries available are not the same.
node.js is a server-side Javascript execution environment that combines the V8 Javascript engine with a bunch of server-side libraries. require()
is one such feature that node.js adds to the environment. So, when you run node in the terminal, you are running an environment that contains require()
.
require()
is not a feature that is built into the browser. That is a specific feature of node.js, not of a browser. So, when you try to have the browser run your script, it does not have require()
.
There are ways to run some forms of node.js code in a browser (but not all). For example, you can get browser substitutes for require()
that work similarly (though not identically).
But, you won't be running a web server in your browser as that is not something the browser has the capability to do.
You may be interested in browserify which lets you use node-style modules in a browser using require()
statements.
In Javascript you can do like this
function submitRequest(buttonId) {
if (document.getElementById(buttonId) == null
|| document.getElementById(buttonId) == undefined) {
return;
}
if (document.getElementById(buttonId).dispatchEvent) {
var e = document.createEvent("MouseEvents");
e.initEvent("click", true, true);
document.getElementById(buttonId).dispatchEvent(e);
} else {
document.getElementById(buttonId).click();
}
}
and you can use it like
submitRequest("target-element-id");
EDIT: this will case errors with jquery to happen, plus some other inconveniences. YOU SHOULD NOT USE IT: (perhaps if one could add a privaate method instead of a public property function, this would be OK, but don't have the time now). Community wikied
do not use:
Even though javascript's object by default doesn't have the count function, classes are easily extendable, and one can add it oneself:
Object.prototype.count = function () {
var count = 0;
for(var prop in this) {
if(this.hasOwnProperty(prop))
count = count + 1;
}
return count;
}
So that after that one can execute
var object = {'key1': 'val1', 'key2':'val2', 'key3':'val3'};
console.log(object.count()); // 3
As a conclusion, if you want count functionality in objects, you need to copy the code from code block 1, and paste it early in execution time ( before you call the count ).
Let me know if that works for you!
Regards, Pedro
I think your questions will all be answered if you understand how Sets, and in particular HashSets work. A set is a collection of unique objects, with Java defining uniqueness in that it doesn't equal anything else (equals returns false).
The HashSet takes advantage of hashcodes to speed things up. It assumes that two objects that equal eachother will have the same hash code. However it does not assume that two objects with the same hash code mean they are equal. This is why when it detects a colliding hash code, it only compares with other objects (in your case one) in the set with the same hash code.
What about comfortably viewing (and also editing) the content over ODBC & MS-Access, Excel? Softwareversions::
H2 Server:
/*
For JDBC Clients to connect:
jdbc:h2:tcp://localhost:9092/trader;CIPHER=AES;IFEXISTS=TRUE;MVCC=true;LOCK_TIMEOUT=60000;CACHE_SIZE=131072;CACHE_TYPE=TQ
*/
public class DBStarter {
public static final String BASEDIR = "/C:/Trader/db/";
public static final String DB_URL = BASEDIR + "trader;CIPHER=AES;IFEXISTS=TRUE;MVCC=true;LOCK_TIMEOUT=10000;CACHE_SIZE=131072;CACHE_TYPE=TQ";
static void startServer() throws SQLException {
Server tcpServer = Server.createTcpServer(
"-tcpPort", "9092",
"-tcpAllowOthers",
"-ifExists",
// "-trace",
"-baseDir", BASEDIR
);
tcpServer.start();
System.out.println("H2 JDBC Server started: " + tcpServer.getStatus());
Server pgServer = Server.createPgServer(
"-pgPort", "10022",
"-pgAllowOthers",
"-key", "traderdb", DB_URL
);
pgServer.start();
System.out.println("H2 ODBC PGServer started: " + pgServer.getStatus());
}
}
Windows10 ODBC Datasource Configuration which can be used by any ODBC client: In Databse field the name given in '-key' parameter has to be used.
FileReadTime = DateTime.Now;
private void File_Changed(object sender, FileSystemEventArgs e)
{
var lastWriteTime = File.GetLastWriteTime(e.FullPath);
if (lastWriteTime.Subtract(FileReadTime).Ticks > 0)
{
// code
FileReadTime = DateTime.Now;
}
}
getClass().getProtectionDomain().getCodeSource().getLocation();
For me the reason I was getting NPE is that I was using Mockito.any()
when mocking primitives. I found that by switching to using the correct variant from mockito gets rid of the errors.
For example, to mock a function that takes a primitive long
as parameter, instead of using any()
, you should be more specific and replace that with any(Long.class)
or Mockito.anyLong()
.
Hope that helps someone.
I had similar problem and the issue was in wrong value in htaccess as shamittomar mentioned.
Change php_value post_max_size 10MB
to php_value post_max_size 10M
Late edit: there is an official plugin for Chart.js 2.7.0+
to do this: https://github.com/chartjs/chartjs-plugin-datalabels
Original answer:
You can loop through the points / bars onAnimationComplete and display the values
Preview
HTML
<canvas id="myChart1" height="300" width="500"></canvas>
<canvas id="myChart2" height="300" width="500"></canvas>
Script
var chartData = {
labels: ["January", "February", "March", "April", "May", "June"],
datasets: [
{
fillColor: "#79D1CF",
strokeColor: "#79D1CF",
data: [60, 80, 81, 56, 55, 40]
}
]
};
var ctx = document.getElementById("myChart1").getContext("2d");
var myLine = new Chart(ctx).Line(chartData, {
showTooltips: false,
onAnimationComplete: function () {
var ctx = this.chart.ctx;
ctx.font = this.scale.font;
ctx.fillStyle = this.scale.textColor
ctx.textAlign = "center";
ctx.textBaseline = "bottom";
this.datasets.forEach(function (dataset) {
dataset.points.forEach(function (points) {
ctx.fillText(points.value, points.x, points.y - 10);
});
})
}
});
var ctx = document.getElementById("myChart2").getContext("2d");
var myBar = new Chart(ctx).Bar(chartData, {
showTooltips: false,
onAnimationComplete: function () {
var ctx = this.chart.ctx;
ctx.font = this.scale.font;
ctx.fillStyle = this.scale.textColor
ctx.textAlign = "center";
ctx.textBaseline = "bottom";
this.datasets.forEach(function (dataset) {
dataset.bars.forEach(function (bar) {
ctx.fillText(bar.value, bar.x, bar.y - 5);
});
})
}
});
Fiddle - http://jsfiddle.net/uh9vw0ao/
ls -lR
is to display all files, directories and sub directories of the current directory
ls -lR | more
is used to show all the files in a flow.
Yes, you can use GT for free. See the post with explanation. And look at repo on GitHub.
UPD 19.03.2019 Here is a version for browser on GitHub.
I worked with xib and with UIToolbar. BarButtonItem was created in xib file. I created IBOutlet for BarButtonItem. And I used this code to hide my BarButtonItem
self.myBarButtonItem.enabled = NO;
self.myBarButtonItem.title = nil;
this helped me.
This seems pretty clean, to me.
def magic( aList, base=10 ):
n= 0
for d in aList:
n = base*n + d
return n
Even better!
long tStart = System.nanoTime();
long tEnd = System.nanoTime();
long tRes = tEnd - tStart; // time in nanoseconds
Read the documentation about nanoTime()!
You can also use python chardet library
# install the chardet library
!pip install chardet
# import the chardet library
import chardet
# use the detect method to find the encoding
# 'rb' means read in the file as binary
with open("test.csv", 'rb') as file:
print(chardet.detect(file.read()))
Blow codes could help you...
Fetch Numbers:
return string.Concat(input.Where(char.IsNumber));
Fetch Letters:
return string.Concat(input.Where(char.IsLetter));
I also had similar problem where redirects were giving 404 or 405 randomly on my development server. It was an issue with gunicorn instances.
Turns out that I had not properly shut down the gunicorn instance before starting a new one for testing.
Somehow both of the processes were running simultaneously, listening to the same port 8080 and interfering with each other.
Strangely enough they continued running in background after I had killed all my terminals.
Had to kill them manually using fuser -k 8080/tcp
In the latest release of Visual Studio Code, you can now drag the cursor while holding Option (Alt on Windows) to select the same column on multiple rows.
To enable this, make sure you change your editor.multiCursorModifier
to look like this:
"editor.multiCursorModifier": "ctrlCmd"
From the Visual Studio Code release notes 1.32.0:
In the following video, the selection begins as a regular selection and then Alt is pressed and held until the mouse button is released:
If you get the above problem on windows server 2008 you may need to enable ASP. To do so, follow these steps:
Add an 'Application Server' role:
Then, add a 'Web Server' role:
You can see this: http://www.speech.kth.se/snack/
s = Sound()
s.read('sound.wav')
s.play()