You cannot use || operators in between 2 case. But you can use multiple case values without using a break between them. The program will then jump to the respective case and then it will look for code to execute until it finds a "break". As a result these cases will share the same code.
switch(value)
{
case 0:
case 1:
// do stuff for if case 0 || case 1
break;
// other cases
default:
break;
}
System.out.println(LocalDate.now().format(DateTimeFormatter.ofPattern("dd.MMMM yyyy")));
The above answer shows it for today
I have faced the same issue and I was unable to start the postgresql server and was unable to access my db even after giving password, and I have been doing all the possible ways.
This solution worked for me,
For the Ubuntu users: Through command line, type the following commands:
1.service --status-all (which gives list of all services and their status. where "+" refers to running and "-" refers that the service is no longer running)
check for postgresql status, if its "-" then type the following command
2.systemctl start postgresql (starts the server again)
refresh the postgresql page in browser, and it works
For the Windows users:
Search for services, where we can see list of services and the right click on postgresql, click on start and server works perfectly fine.
Taking DWins example.
What I often do, particularly when I use many, many different plots with the same colours or size information, is I store them in variables I otherwise never use. This helps me keep my code a little cleaner AND I can change it "globally".
E.g.
clab = 1.5
cmain = 2
caxis = 1.2
plot(1, 1 ,xlab="x axis", ylab="y axis", pch=19,
col.lab="red", cex.lab=clab,
col="green", main = "Testing scatterplots", cex.main =cmain, cex.axis=caxis)
You can also write a function, doing something similar. But for a quick shot this is ideal. You can also store that kind of information in an extra script, so you don't have a messy plot script:
which you then call with setwd("") source("plotcolours.r")
in a file say called plotcolours.r you then store all the e.g. colour or size variables
clab = 1.5
cmain = 2
caxis = 1.2
for colours could use
darkred<-rgb(113,28,47,maxColorValue=255)
as your variable 'darkred' now has the colour information stored, you can access it in your actual plotting script.
plot(1,1,col=darkred)
http://v4-alpha.getbootstrap.com/layout/responsive-utilities/
You now have to define the size of what is being hidden as so
.hidden-xs-down
Will hide anythinging from xs and smaller, only xs
.hidden-xs-up
Will hide everything
For non-grouped elements, name and id should be same. In this case you gave name as 'sp' and id as 'sp_100'. Don't do that, do it like this:
HTML:
<input type="hidden" id="msg" name="msg" value="" style="display:none"/>
<input type="checkbox" name="sp" value="100" id="sp">
Javascript:
var Msg="abc";
document.getElementById('msg').value = Msg;
document.getElementById('sp').checked = true;
For more details
please visit : http://www.impressivewebs.com/avoiding-problems-with-javascript-getelementbyid-method-in-internet-explorer-7/
I had the same issue recently, and I solved it like this:
SELECT * FROM table WHERE
strftime('%s', date) BETWEEN strftime('%s', start_date) AND strftime('%s', end_date)
If you don't want to use the KnockoutValidation library you can write your own. Here's an example for a Mandatory field.
Add a javascript class with all you KO extensions or extenders, and add the following:
ko.extenders.required = function (target, overrideMessage) {
//add some sub-observables to our observable
target.hasError = ko.observable();
target.validationMessage = ko.observable();
//define a function to do validation
function validate(newValue) {
target.hasError(newValue ? false : true);
target.validationMessage(newValue ? "" : overrideMessage || "This field is required");
}
//initial validation
validate(target());
//validate whenever the value changes
target.subscribe(validate);
//return the original observable
return target;
};
Then in your viewModel extend you observable by:
self.dateOfPayment: ko.observable().extend({ required: "" }),
There are a number of examples online for this style of validation.
Not currently, currently the only languages available to access the iPhone SDK are C/C++, Objective C and Swift.
There is no technical reason why this could not change in the future but I wouldn't hold your breath for this happening in the short term.
That said, Objective-C and Swift really are not too scary...
2016 edit
Javascript with NativeScript framework is available to use now.
If you have a fixed number (75), you could create an array with 75 elements, then enumerate your list, moving the elements to randomized positions in the array. You can generate the mapping of list number to array index using the Fisher-Yates shuffle.
If your DIV tag is immediately followed by the IMG tag, you can also use:
$(this).next();
If the goal is to create a grid with equal height rows, where the tallest cell in the grid sets the height for all rows, here's a quick and simple solution:
grid-auto-rows: 1fr
Grid Layout provides a unit for establishing flexible lengths in a grid container. This is the fr
unit. It is designed to distribute free space in the container and is somewhat analogous to the flex-grow
property in flexbox.
If you set all rows in a grid container to 1fr
, let's say like this:
grid-auto-rows: 1fr;
... then all rows will be equal height.
It doesn't really make sense off-the-bat because fr
is supposed to distribute free space. And if several rows have content with different heights, then when the space is distributed, some rows would be proportionally smaller and taller.
Except, buried deep in the grid spec is this little nugget:
7.2.3. Flexible Lengths: the
fr
unit...
When the available space is infinite (which happens when the grid container’s width or height is indefinite), flex-sized (
fr
) grid tracks are sized to their contents while retaining their respective proportions.The used size of each flex-sized grid track is computed by determining the
max-content
size of each flex-sized grid track and dividing that size by the respective flex factor to determine a “hypothetical1fr
size”.The maximum of those is used as the resolved
1fr
length (the flex fraction), which is then multiplied by each grid track’s flex factor to determine its final size.
So, if I'm reading this correctly, when dealing with a dynamically-sized grid (e.g., the height is indefinite), grid tracks (rows, in this case) are sized to their contents.
The height of each row is determined by the tallest (max-content
) grid item.
The maximum height of those rows becomes the length of 1fr
.
That's how 1fr
creates equal height rows in a grid container.
As noted in the question, equal height rows are not possible with flexbox.
Flex items can be equal height on the same row, but not across multiple rows.
This behavior is defined in the flexbox spec:
In a multi-line flex container, the cross size of each line is the minimum size necessary to contain the flex items on the line.
In other words, when there are multiple lines in a row-based flex container, the height of each line (the "cross size") is the minimum height necessary to contain the flex items on the line.
In this line:
fund = fund * (1 + 0.01 * growthRates) + depositPerYear
I think you mean this:
fund = fund * (1 + 0.01 * i) + depositPerYear
When you try to multiply a float by growthRates (which is a list), you get that error.
You can use CSS:
p.capitalize {text-transform:capitalize;}
Based on Kamal Reddy's comment:
document.getElementById("myP").style.textTransform = "capitalize";
if 'a' is already a decimal; adding '.' would make 3.4/b(for example) into 3.4./b
Try float(a)/b
example : 1 and 2 table is available
1 table delete entry and select nor 2 table records and insert to no 1 table . when delete time no 1 table dont have second table records example emp id not available means this errors appeared
Coming from someone who has tried a number of "C# IDEs" on the Mac, your best bet is to install a virtual desktop with Windows and Visual Studio. It really is the best development IDE out there for .NET, nothing even comes close.
On a related note: I hate XCode.
Update: Use Xamarin Studio. It's solid.
With Linq...
string s = "7,true,NA,false:67,false,NA,false:5,false,NA,false:5,false,NA,false";
var count = s.Split(new[] {',', ':'}).Count(s => s == "true" );
Yes. You need to stringify
the JSON
data orlse 400 bad request
error occurs as it cannot identify the data.
400 Bad Request
Bad Request. Your browser sent a request that this server could not understand.
Plus you need to add content type
and datatype
as well. If not you will encounter 415
error which says Unsupported Media Type
.
415 Unsupported Media Type
Try this.
var newData = {
"subject:title":"Test Name",
"subject:description":"Creating test subject to check POST method API",
"sub:tags": ["facebook:work", "facebook:likes"],
"sampleSize" : 10,
"values": ["science", "machine-learning"]
};
var dataJson = JSON.stringify(newData);
$.ajax({
type: 'POST',
url: "http://localhost:8080/project/server/rest/subjects",
data: dataJson,
error: function(e) {
console.log(e);
},
dataType: "json",
contentType: "application/json"
});
With this way you can modify the data you need with ease. It wont confuse you as it is defined outside the ajax block.
Markdown: ![Screenshot](http://url/to/img.png)
Then copy image source
Now add ![Screenshot](http://url/to/img.png)
to your README.md file
Done!
Alternatively you can use some image hosting site like imgur
and get it's url and add it in your README.md file or you can use some static file hosting too.
Darin Dimitrov's answer shows that OrderBy
is slightly faster than List.Sort
when faced with already-sorted input. I modified his code so it repeatedly sorts the unsorted data, and OrderBy
is in most cases slightly slower.
Furthermore, the OrderBy
test uses ToArray
to force enumeration of the Linq enumerator, but that obviously returns a type (Person[]
) which is different from the input type (List<Person>
). I therefore re-ran the test using ToList
rather than ToArray
and got an even bigger difference:
Sort: 25175ms
OrderBy: 30259ms
OrderByWithToList: 31458ms
The code:
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
class Program
{
class NameComparer : IComparer<string>
{
public int Compare(string x, string y)
{
return string.Compare(x, y, true);
}
}
class Person
{
public Person(string id, string name)
{
Id = id;
Name = name;
}
public string Id { get; set; }
public string Name { get; set; }
public override string ToString()
{
return Id + ": " + Name;
}
}
private static Random randomSeed = new Random();
public static string RandomString(int size, bool lowerCase)
{
var sb = new StringBuilder(size);
int start = (lowerCase) ? 97 : 65;
for (int i = 0; i < size; i++)
{
sb.Append((char)(26 * randomSeed.NextDouble() + start));
}
return sb.ToString();
}
private class PersonList : List<Person>
{
public PersonList(IEnumerable<Person> persons)
: base(persons)
{
}
public PersonList()
{
}
public override string ToString()
{
var names = Math.Min(Count, 5);
var builder = new StringBuilder();
for (var i = 0; i < names; i++)
builder.Append(this[i]).Append(", ");
return builder.ToString();
}
}
static void Main()
{
var persons = new PersonList();
for (int i = 0; i < 100000; i++)
{
persons.Add(new Person("P" + i.ToString(), RandomString(5, true)));
}
var unsortedPersons = new PersonList(persons);
const int COUNT = 30;
Stopwatch watch = new Stopwatch();
for (int i = 0; i < COUNT; i++)
{
watch.Start();
Sort(persons);
watch.Stop();
persons.Clear();
persons.AddRange(unsortedPersons);
}
Console.WriteLine("Sort: {0}ms", watch.ElapsedMilliseconds);
watch = new Stopwatch();
for (int i = 0; i < COUNT; i++)
{
watch.Start();
OrderBy(persons);
watch.Stop();
persons.Clear();
persons.AddRange(unsortedPersons);
}
Console.WriteLine("OrderBy: {0}ms", watch.ElapsedMilliseconds);
watch = new Stopwatch();
for (int i = 0; i < COUNT; i++)
{
watch.Start();
OrderByWithToList(persons);
watch.Stop();
persons.Clear();
persons.AddRange(unsortedPersons);
}
Console.WriteLine("OrderByWithToList: {0}ms", watch.ElapsedMilliseconds);
}
static void Sort(List<Person> list)
{
list.Sort((p1, p2) => string.Compare(p1.Name, p2.Name, true));
}
static void OrderBy(List<Person> list)
{
var result = list.OrderBy(n => n.Name, new NameComparer()).ToArray();
}
static void OrderByWithToList(List<Person> list)
{
var result = list.OrderBy(n => n.Name, new NameComparer()).ToList();
}
}
In general, no. However, a struct declared as file-scope or static in a function /will/ be initialized to 0 (just like all other variables of those scopes):
int x; // 0
int y = 42; // 42
struct { int a, b; } foo; // 0, 0
void foo() {
struct { int a, b; } bar; // undefined
static struct { int c, d; } quux; // 0, 0
}
Here's a Javascript implementation of @Stochastically's Java implementation for anyone needing it:
class GPSKalmanFilter {
constructor (decay = 3) {
this.decay = decay
this.variance = -1
this.minAccuracy = 1
}
process (lat, lng, accuracy, timestampInMs) {
if (accuracy < this.minAccuracy) accuracy = this.minAccuracy
if (this.variance < 0) {
this.timestampInMs = timestampInMs
this.lat = lat
this.lng = lng
this.variance = accuracy * accuracy
} else {
const timeIncMs = timestampInMs - this.timestampInMs
if (timeIncMs > 0) {
this.variance += (timeIncMs * this.decay * this.decay) / 1000
this.timestampInMs = timestampInMs
}
const _k = this.variance / (this.variance + (accuracy * accuracy))
this.lat += _k * (lat - this.lat)
this.lng += _k * (lng - this.lng)
this.variance = (1 - _k) * this.variance
}
return [this.lng, this.lat]
}
}
Usage example:
const kalmanFilter = new GPSKalmanFilter()
const updatedCoords = []
for (let index = 0; index < coords.length; index++) {
const { lat, lng, accuracy, timestampInMs } = coords[index]
updatedCoords[index] = kalmanFilter.process(lat, lng, accuracy, timestampInMs)
}
In C# and SQL SERVER, we can fix the error by adding Integrated Security = true
to the connection string.
Please find the full connection string:
constr = @"Data Source=<Data-Source-Server-Name>;Initial Catalog=<DB-Name>;Integrated Security=true";
using System.Data.SqlClient;
SqlConnection conn = new SqlConnection();
conn.ConnectionString =
"Data Source=ServerName;" +
"Initial Catalog=DataBaseName;" +
"User id=UserName;" +
"Password=Secret;";
conn.Open();
SqlConnection conn = new SqlConnection();
conn.ConnectionString =
"Data Source=ServerName;" +
"Initial Catalog=DataBaseName;" +
"Integrated Security=SSPI;";
conn.Open();
Refer to the documentation.
You can also just redefine those non-enumerable properties to be enumerable.
Object.defineProperty(Error.prototype, 'message', {
configurable: true,
enumerable: true
});
and maybe stack
property too.
I cannot create a file with the name+period+extnesion in WS 2012 Explorer longer than 224 characters. Don't shoot the messenger!
In the CMD of the same server I cannot create a longer than 235 character name:
The system cannot find the path specified.
The file with a 224 character name created in the Explorer cannot be opened in Notepad++ - it just comes up with a new file instead.
In addition to registering a ByteArrayHttpMessageConverter
, you may want to use a ResponseEntity
instead of @ResponseBody
. The following code works for me :
@RequestMapping("/photo2")
public ResponseEntity<byte[]> testphoto() throws IOException {
InputStream in = servletContext.getResourceAsStream("/images/no_image.jpg");
final HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.IMAGE_PNG);
return new ResponseEntity<byte[]>(IOUtils.toByteArray(in), headers, HttpStatus.CREATED);
}
Given a function, f
, thread it like this:
import threading
threading.Thread(target=f).start()
To pass arguments to f
threading.Thread(target=f, args=(a,b,c)).start()
You can use .scrollIntoView()
for this. It will bring a specific element into the viewport.
Example:
document.getElementById( 'bottom' ).scrollIntoView();
Demo: http://jsfiddle.net/ThinkingStiff/DG8yR/
Script:
function top() {
document.getElementById( 'top' ).scrollIntoView();
};
function bottom() {
document.getElementById( 'bottom' ).scrollIntoView();
window.setTimeout( function () { top(); }, 2000 );
};
bottom();
HTML:
<div id="top">top</div>
<div id="bottom">bottom</div>
CSS:
#top {
border: 1px solid black;
height: 3000px;
}
#bottom {
border: 1px solid red;
}
I think this should do it:
var arr = ['contains,comma', 3.14, 'contains"quote', "more'quotes"]
var item, i;
var line = [];
for (i = 0; i < arr.length; ++i) {
item = arr[i];
if (item.indexOf && (item.indexOf(',') !== -1 || item.indexOf('"') !== -1)) {
item = '"' + item.replace(/"/g, '""') + '"';
}
line.push(item);
}
document.getElementById('out').innerHTML = line.join(',');
Basically all it does is check if the string contains a comma or quote. If it does, then it doubles all the quotes, and puts quotes on the ends. Then it joins each of the parts with a comma.
For macOS users to fix this issue:
You need to go through the following steps:
Create the “db” directory. This is where the Mongo data files will live. You can create the directory in the default location by running:
sudo mkdir -p /data/db
Make sure that the /data/db
directory has the right permissions by running:
sudo chown -R `id -un` /data/db
You're all set now and you can run sudo mongod
to start the Mongo server.
It's not working if you run only mongod
Please be more specific! What do you mean by "it doesn't work"? Post the exact output (or error message), your OS and awk version:
% awk -F\| '{
for (i = 0; ++i <= NF;)
print i, $i
}' <<<'12|23|11'
1 12
2 23
3 11
Or, using split:
% awk '{
n = split($0, t, "|")
for (i = 0; ++i <= n;)
print i, t[i]
}' <<<'12|23|11'
1 12
2 23
3 11
Edit: on Solaris you'll need to use the POSIX awk (/usr/xpg4/bin/awk) in order to process 4000 fields correctly.
You could use linear-gradient
. Let's say the parent div
had a background image, and you needed a div
to sit on top of that with a gray background and a dog-eared left corner. You could do something like this:
.parent-div { background: url('/image.jpg'); }
.child-div {
background: #333;
background: linear-gradient(135deg, transparent 30px, #333 0);
}
Further reading:
You can use vertical-align and floating.
In most cases you want to vertical-align: middle, the image.
Here is a test: http://www.w3schools.com/cssref/tryit.asp?filename=trycss_vertical-align
vertical-align: baseline|length|sub|super|top|text-top|middle|bottom|text-bottom|initial|inherit;
For middle, the definition is: The element is placed in the middle of the parent element.
So you might want to apply that to all elements within the element.
Right now you're setting the innerHTML to an entire div element; you want to set it to just the innerHTML. Also, I think you want MyDiv2.innerHTML = MyDiv 1 .innerHTML. Also, I think the argument to document.getElementById
is case sensitive. You were passing Div2
when you wanted DIV2
var MyDiv1 = Document.getElementById('DIV1');
var MyDiv2 = Document.getElementById('DIV2');
MyDiv2.innerHTML = MyDiv1.innerHTML;
Also, this code will run before your DOM is ready. You can either put this script at the bottom of your body like paislee said, or put it in your body's onload function
<body onload="loadFunction()">
and then
function loadFunction(){
var MyDiv1 = Document.getElementById('DIV1');
var MyDiv2 = Document.getElementById('DIV2');
MyDiv2.innerHTML = MyDiv1.innerHTML;
}
Or you can always map
over an iterator, without the need to build an intermediate list:
>>> _ = map(sys.stdout.write, (x for x in string.letters if x in (y for y in "BigMan on campus")))
acgimnopsuBM
Use a method in com.google.common.io.Files
class if your project is already dependent on Google core library. The method you need is getNameWithoutExtension
.
Any class that can be serialized (i.e. implements Serializable
) should declare that UID and it must be changed whenever anything changes that affects the serialization (additional fields, removed fields, change of field order, ...). The field's value is checked during deserialization and if the value of the serialized object does not equal the value of the class in the current VM, an exception is thrown.
Note that this value is special in that it is serialized with the object even though it is static, for the reasons described above.
You are getting arithmetic overflow. this means you are trying to make a conversion impossible to be made. This error is thrown when you try to make a conversion and the destiny data type is not enough to convert the origin data. For example:
If you try to convert 100.52 to decimal(4,2) you will get this error. The number 100.52 requires 5 positions and 2 of them are decimal.
Try to change the decimal precision to something like 16,2 or higher. Try with few records first then use it to all your select.
It’s about time someone provides the modern answer to this question. In 2012 when the question was asked, the answers also posted back then were good answers. Why the answers posted in 2016 also use the then long outdated classes SimpleDateFormat
and Date
is a bit more of a mystery to me. java.time
, the modern Java date and time API also known as JSR-310, is so much nicer to work with. You can use it on Android through the ThreeTenABP, see this question: How to use ThreeTenABP in Android Project.
For most purposes I recommend using the milliseconds since the epoch at the start of the day in UTC. To obtain these:
DateTimeFormatter dateFormatter
= DateTimeFormatter.ofPattern("d-MMMM-uuuu", Locale.ENGLISH);
String stringDate = "12-December-2012";
long millisecondsSinceEpoch = LocalDate.parse(stringDate, dateFormatter)
.atStartOfDay(ZoneOffset.UTC)
.toInstant()
.toEpochMilli();
System.out.println(millisecondsSinceEpoch);
This prints:
1355270400000
If you require the time at start of day in some specific time zone, specify that time zone instead of UTC, for example:
.atStartOfDay(ZoneId.of("Asia/Karachi"))
As expected this gives a slightly different result:
1355252400000
Another point to note, remember to supply a locale to your DateTimeFormatter
. I took December to be English, there are other languages where that month is called the same, so please choose the proper locale yourself. If you didn’t provide a locale, the formatter would use the JVM’s locale setting, which may work in many cases, and then unexpectedly fail one day when you run your app on a device with a different locale setting.
In C++ you can overload operator<<
for ostream
and your custom class:
class A {
public:
int i;
};
std::ostream& operator<<(std::ostream &strm, const A &a) {
return strm << "A(" << a.i << ")";
}
This way you can output instances of your class on streams:
A x = ...;
std::cout << x << std::endl;
In case your operator<<
wants to print out internals of class A
and really needs access to its private and protected members you could also declare it as a friend function:
class A {
private:
friend std::ostream& operator<<(std::ostream&, const A&);
int j;
};
std::ostream& operator<<(std::ostream &strm, const A &a) {
return strm << "A(" << a.j << ")";
}
use MAX
in your SELECT
to return on value.. EXAMPLE
INSERT INTO school_year_studentid (student_id,syr_id) VALUES
((SELECT MAX(student_id) FROM student), (SELECT MAX(syr_id) FROM school_year))
instead of
INSERT INTO school_year_studentid (student_id,syr_id) VALUES
((SELECT (student_id) FROM student), (SELECT (syr_id) FROM school_year))
try it without MAX it will more than one value
I used createdRow Function and solved my problem
$('#result1').DataTable( {
data: data['firstQuery'],
columns: [
{ title: 'Shipping Agent Code' },
{ title: 'City' },
{ title: 'Delivery Zone' },
{ title: 'Total Slots Open ' },
{ title: 'Slots Utilized' },
{ title: 'Utilization %' },
],
"columnDefs": [
{"className": "dt-center", "targets": "_all"}
],
"createdRow": function( row, data, dataIndex){
if( data[5] >= 90 ){
$(row).css('background-color', '#F39B9B');
}
else if( data[5] <= 70 ){
$(row).css('background-color', '#A497E5');
}
else{
$(row).css('background-color', '#9EF395');
}
}
} );
If the value is <0, the serlet is instantiated when the request comes, else >=0 the container will load in the increasing order of the values. if 2 or more servlets have the same value, then the order of the servlets declared in the web.xml.
You can use \t
to create a tab in a file.
Like this ?
<script>
var meta = document.createElement('meta');
meta.setAttribute('http-equiv', 'X-UA-Compatible');
meta.setAttribute('content', 'IE=Edge');
document.getElementsByTagName('head')[0].appendChild(meta);
</script>
I solved this another way. Let's say you have your dependency.js
export const myFunction = () => { }
I create a depdency.mock.js file besides it with the following content:
export const mockFunction = jest.fn();
jest.mock('dependency.js', () => ({ myFunction: mockFunction }));
And in the test, before I import the file that has the dependency, I use:
import { mockFunction } from 'dependency.mock'
import functionThatCallsDep from './tested-code'
it('my test', () => {
mockFunction.returnValue(false);
functionThatCallsDep();
expect(mockFunction).toHaveBeenCalled();
})
The urls are different.
http://localhost/AccountSvc/DataInquiry.asmx
vs.
/acctinqsvc/portfolioinquiry.asmx
Resolve this issue first, as if the web server cannot resolve the URL you are attempting to POST to, you won't even begin to process the actions described by your request.
You should only need to create the WebRequest to the ASMX root URL, ie: http://localhost/AccountSvc/DataInquiry.asmx
, and specify the desired method/operation in the SOAPAction header.
The SOAPAction header values are different.
http://localhost/AccountSvc/DataInquiry.asmx/ + methodName
vs.
http://tempuri.org/GetMyName
You should be able to determine the correct SOAPAction by going to the correct ASMX URL and appending ?wsdl
There should be a <soap:operation>
tag underneath the <wsdl:operation>
tag that matches the operation you are attempting to execute, which appears to be GetMyName
.
There is no XML declaration in the request body that includes your SOAP XML.
You specify text/xml
in the ContentType of your HttpRequest and no charset. Perhaps these default to us-ascii
, but there's no telling if you aren't specifying them!
The SoapUI created XML includes an XML declaration that specifies an encoding of utf-8, which also matches the Content-Type provided to the HTTP request which is: text/xml; charset=utf-8
Hope that helps!
We can create functions which use named parameters (only) for default values. This is a continuation of bk.'s answer.
#include <stdio.h>
struct range { int from; int to; int step; };
#define range(...) range((struct range){.from=1,.to=10,.step=1, __VA_ARGS__})
/* use parentheses to avoid macro subst */
void (range)(struct range r) {
for (int i = r.from; i <= r.to; i += r.step)
printf("%d ", i);
puts("");
}
int main() {
range();
range(.from=2, .to=4);
range(.step=2);
}
The C99 standard defines that later names in the initialization override previous items. We can also have some standard positional parameters as well, just change the macro and function signature accordingly. The default value parameters can only be used in named parameter style.
Program output:
1 2 3 4 5 6 7 8 9 10
2 3 4
1 3 5 7 9
Here's another way to do it, using a LINQ lambda:
C#:
SomeObject.GetType().GetProperties().ToList().ForEach(x => Console.WriteLine($"{x.Name} = {x.GetValue(SomeObject, null)}"));
VB.NET:
SomeObject.GetType.GetProperties.ToList.ForEach(Sub(x) Console.WriteLine($"{x.Name} = {x.GetValue(SomeObject, Nothing)}"))
Important note: You should only apply plugin at bottom of build.gradle (App level)
apply plugin: 'com.google.gms.google-services'
I mistakenly apply this plugin at top of the build.gradle. So I get error.
One more tips : You no need to remove even you use the 3.1.0 or above. Because google not officially announced
classpath 'com.google.gms:google-services:3.1.0'
Use this
Let say Application Test.exe is running and function is foo() in form1 [basically it is class form1], then above code will generate below response.
string s1 = System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name;
This will return .
s1 = "TEST.form1"
for function name:
string s1 = System.Reflection.MethodBase.GetCurrentMethod().Name;
will return
s1 = foo
Note if you want to use this in exception use :
catch (Exception ex)
{
MessageBox.Show(ex.StackTrace );
}
Using an empty string is perfectly fine and actually much safer than simply using $_SERVER['PHP_SELF']
.
When using $_SERVER['PHP_SELF']
it is very easy to inject malicious data by simply appending /<script>...
after the whatever.php
part of the URL so you should not use this method and stop using any PHP tutorial that suggests it.
The file value can either be an absolute path like "c:\logs\log.txt" or a relative path which I believe is relative to the bin directory.
As far as implementing it, I usually place the following at the top of any class I plan to log in:
private static readonly ILog Log = LogManager.GetLogger(
MethodBase.GetCurrentMethod().DeclaringType);
Finally, you can use it like so:
Log.Debug("This is a DEBUG level message.");
The correct way to do it is to provide a docstring. That way, help(add)
will also spit out your comment.
def add(self):
"""Create a new user.
Line 2 of comment...
And so on...
"""
That's three double quotes to open the comment and another three double quotes to end it. You can also use any valid Python string. It doesn't need to be multiline and double quotes can be replaced by single quotes.
See: PEP 257
No, TRUNCATE
is all or nothing. You can do a DELETE FROM <table> WHERE <conditions>
but this loses the speed advantages of TRUNCATE
.
You need to escape the backslash \
:
println yourString.replace("\\", "/")
If you need to do something on the front end you can respond to the onsubmit event of your form. If you are just posting to admin/start you can access post variables in your view through the request object. request.POST which is a dictionary of post variables
dplyr now has a function case_when
that offers a vectorised if. The syntax is a little strange compared to mosaic:::derivedFactor
as you cannot access variables in the standard dplyr way, and need to declare the mode of NA, but it is considerably faster than mosaic:::derivedFactor
.
df %>%
mutate(g = case_when(a %in% c(2,5,7) | (a==1 & b==4) ~ 2L,
a %in% c(0,1,3,4) | c == 4 ~ 3L,
TRUE~as.integer(NA)))
EDIT: If you're using dplyr::case_when()
from before version 0.7.0 of the package, then you need to precede variable names with '.$
' (e.g. write .$a == 1
inside case_when
).
Benchmark: For the benchmark (reusing functions from Arun 's post) and reducing sample size:
require(data.table)
require(mosaic)
require(dplyr)
require(microbenchmark)
set.seed(42) # To recreate the dataframe
DT <- setDT(lapply(1:6, function(x) sample(7, 10000, TRUE)))
setnames(DT, letters[1:6])
DF <- as.data.frame(DT)
DPLYR_case_when <- function(DF) {
DF %>%
mutate(g = case_when(a %in% c(2,5,7) | (a==1 & b==4) ~ 2L,
a %in% c(0,1,3,4) | c==4 ~ 3L,
TRUE~as.integer(NA)))
}
DT_fun <- function(DT) {
DT[(a %in% c(0,1,3,4) | c == 4), g := 3L]
DT[a %in% c(2,5,7) | (a==1 & b==4), g := 2L]
}
DPLYR_fun <- function(DF) {
mutate(DF, g = ifelse(a %in% c(2,5,7) | (a==1 & b==4), 2L,
ifelse(a %in% c(0,1,3,4) | c==4, 3L, NA_integer_)))
}
mosa_fun <- function(DF) {
mutate(DF, g = derivedFactor(
"2" = (a == 2 | a == 5 | a == 7 | (a == 1 & b == 4)),
"3" = (a == 0 | a == 1 | a == 4 | a == 3 | c == 4),
.method = "first",
.default = NA
))
}
perf_results <- microbenchmark(
dt_fun <- DT_fun(copy(DT)),
dplyr_ifelse <- DPLYR_fun(copy(DF)),
dplyr_case_when <- DPLYR_case_when(copy(DF)),
mosa <- mosa_fun(copy(DF)),
times = 100L
)
This gives:
print(perf_results)
Unit: milliseconds
expr min lq mean median uq max neval
dt_fun 1.391402 1.560751 1.658337 1.651201 1.716851 2.383801 100
dplyr_ifelse 1.172601 1.230351 1.331538 1.294851 1.390351 1.995701 100
dplyr_case_when 1.648201 1.768002 1.860968 1.844101 1.958801 2.207001 100
mosa 255.591301 281.158350 291.391586 286.549802 292.101601 545.880702 100
Change the permissions of the directory you want to save to so that all users have read and write permissions.
if you need to return an array elements with same value, use array_keys()
function
$array = array('red' => 1, 'blue' => 1, 'green' => 2);
print_r(array_keys($array, 1));
To get the number of rows in a dataframe use:
df.shape[0]
(and df.shape[1]
to get the number of columns).
As an alternative you can use
len(df)
or
len(df.index)
(and len(df.columns)
for the columns)
shape
is more versatile and more convenient than len()
, especially for interactive work (just needs to be added at the end), but len
is a bit faster (see also this answer).
To avoid: count()
because it returns the number of non-NA/null observations over requested axis
len(df.index)
is faster
import pandas as pd
import numpy as np
df = pd.DataFrame(np.arange(24).reshape(8, 3),columns=['A', 'B', 'C'])
df['A'][5]=np.nan
df
# Out:
# A B C
# 0 0 1 2
# 1 3 4 5
# 2 6 7 8
# 3 9 10 11
# 4 12 13 14
# 5 NaN 16 17
# 6 18 19 20
# 7 21 22 23
%timeit df.shape[0]
# 100000 loops, best of 3: 4.22 µs per loop
%timeit len(df)
# 100000 loops, best of 3: 2.26 µs per loop
%timeit len(df.index)
# 1000000 loops, best of 3: 1.46 µs per loop
df.__len__
is just a call to len(df.index)
import inspect
print(inspect.getsource(pd.DataFrame.__len__))
# Out:
# def __len__(self):
# """Returns length of info axis, but here we use the index """
# return len(self.index)
Why you should not use count()
df.count()
# Out:
# A 7
# B 8
# C 8
Instead of using a bat file, you can simply create a Scheduled Task. Most of the time you define just one action. In this case, create two actions with the NET
command. The first one to stop the service, the second one to start the service. Give them a STOP
and START
argument, followed by the service name.
In this example we restart the Printer Spooler service.
NET STOP "Print Spooler"
NET START "Print Spooler"
Note: unfortunately NET RESTART <service name>
does not exist.
Or if you need to set the value of found:
found = Value1.StartsWith("abc")
Edit: Given your edit, I would do something like:
found = Value1.Substring(0, 5).Contains("abc")
Few answers have given a solution with height and width 100% but I recommend you to not use percentage in css, use top/bottom and left/right positionning.
This is a better approach that allow you to control margin.
Here is the code :
body {
position: relative;
height: 3000px;
}
body div {
top:0px;
bottom: 0px;
right: 0px;
left:0px;
background-color: yellow;
position: absolute;
}
It looks like you're close. Assuming that it's not just a typo in your submission, step 3 should be cd repo2
instead of repo1. And step 6 should be git pull
not push. Reworked list:
1. git clone repo1
2. git clone repo2
3. cd repo2
4. git remote rm origin
5. git remote add repo1
6. git pull
7. git remote rm repo1
8. git remote add newremote
export class GenericValidator {
constructor(private validationMessages: { [key: string]: { [key: string]: string } }) {
}
processMessages(container: FormGroup): { [key: string]: string } {
const messages = {};
for (const controlKey in container.controls) {
if (container.controls.hasOwnProperty(controlKey)) {
const c = container.controls[controlKey];
if (c instanceof FormGroup) {
const childMessages = this.processMessages(c);
// handling formGroup errors messages
const formGroupErrors = {};
if (this.validationMessages[controlKey]) {
formGroupErrors[controlKey] = '';
if (c.errors) {
Object.keys(c.errors).map((messageKey) => {
if (this.validationMessages[controlKey][messageKey]) {
formGroupErrors[controlKey] += this.validationMessages[controlKey][messageKey] + ' ';
}
})
}
}
Object.assign(messages, childMessages, formGroupErrors);
} else {
// handling control fields errors messages
if (this.validationMessages[controlKey]) {
messages[controlKey] = '';
if ((c.dirty || c.touched) && c.errors) {
Object.keys(c.errors).map((messageKey) => {
if (this.validationMessages[controlKey][messageKey]) {
messages[controlKey] += this.validationMessages[controlKey][messageKey] + ' ';
}
})
}
}
}
}
}
return messages;
}
}
I took it from Deborahk and modified it a little bit.
Some people do not have the luxury of using std::vector
, even with allocators. Some people need a dynamically sized array, so std::array
is out. And some people get their arrays from other code that is known to return an array; and that code isn't going to be rewritten to return a vector
or something.
By allowing unique_ptr<T[]>
, you service those needs.
In short, you use unique_ptr<T[]>
when you need to. When the alternatives simply aren't going to work for you. It's a tool of last resort.
The Groovy way to do this is
def list = []
list << new MyType(...)
which creates a list and uses the overloaded leftShift
operator to append an item
See the Groovy docs on Lists for lots of examples.
I had trouble getting this to work and added another solution for anyone wanting/ needing to use FromCollection.
Instead of:
@Html.CheckBoxFor(model => true, item.TemplateId)
Format html helper like so:
@Html.CheckBoxFor(model => model.SomeProperty, new { @class = "form-control", Name = "SomeProperty"})
Then in the viewmodel/model wherever your logic is:
public void Save(FormCollection frm)
{
// to do instantiate object.
instantiatedItem.SomeProperty = (frm["SomeProperty"] ?? "").Equals("true", StringComparison.CurrentCultureIgnoreCase);
// to do and save changes in database.
}
alter table User
add constraint userProperties
foreign key (properties)
references Properties(ID)
Using only standard python libs:
from os import environ,getcwd
getUser = lambda: environ["USERNAME"] if "C:" in getcwd() else environ["USER"]
user = getUser()
Works on Windows (if you are on drive C), Mac or Linux
Alternatively, you could remove one line with an immediate invocation:
from os import environ,getcwd
user = (lambda: environ["USERNAME"] if "C:" in getcwd() else environ["USER"])()
If you by writing "non letters and numbers" exclude more than [A-Za-z0-9]
(ie. considering letters like åäö
to be letters to) and want to be able to accurately handle UTF-8 strings \p{L}
and \p{N}
will be of aid.
\p{N}
will match any "Number"\p{L}
will match any "Letter Character", which includes
Documentation PHP: Unicode Character Properties
$data = "Thäre!wouldn't%bé#äny";
$new_data = str_replace ("'", "", $data);
$new_data = preg_replace ('/[^\p{L}\p{N}]/u', '_', $new_data);
var_dump (
$new_data
);
output
string(23) "Thäre_wouldnt_bé_äny"
$('body').bind('beforeunload',function(){
//do something
});
But this wont save any info for later, unless you were planning on saving that in a cookie somewhere (or local storage) and the unload
event does not always fire in all browsers.
Example: http://jsfiddle.net/maniator/qpK7Y/
Code:
$(window).bind('beforeunload',function(){
//save info somewhere
return 'are you sure you want to leave?';
});
Date
has the time part, so we only need to extract it from Date
I personally prefer the default format
parameter of the Date
when date and time needs to be separated instead of using the extra SimpleDateFormat
Date date = new Date()
String datePart = date.format("dd/MM/yyyy")
String timePart = date.format("HH:mm:ss")
println "datePart : " + datePart + "\ttimePart : " + timePart
Why do you need to attach it to the HTML? Just bind the function with hover
$("div.system_box").hover(function(){ mousin },
function() { mouseout });
If you do insist to have JS references inside the html, which is usualy a bad idea you can use:
onmouseover="yourJavaScriptCode()"
<div class="system_box" data-target="sms_box">
...
$("div.system_box").click(function(){ slideonlyone($(this).attr("data-target")); });
Try setting the definer for the function!
So instead of
CREATE FUNCTION get_pet_owner
you will write something akin to
CREATE DEFINER=
procadmin
@%
FUNCTION get_pet_owner
which ought to work if the user prodacmin has rights to create functions/procedures.
In my case the function worked when generated through MySQL Workbench but did not work when run directly as an SQL script. Making the changes above fixed the problem.
One interesting difference :
lst=[1]
print lst // prints [1]
print type(lst) // prints <type 'list'>
notATuple=(1)
print notATuple // prints 1
print type(notATuple) // prints <type 'int'>
^^ instead of tuple(expected)
A comma must be included in a tuple even if it contains only a single value. e.g. (1,)
instead of (1)
.
I don't think you can - there is a W3C draft API to get audio or video, but there is no implementation yet on any of the major mobile OSs.
Second best The only option is to go with Dennis' suggestion to use PhoneGap. This will mean you need to create a native app and add it to the mobile app store/marketplace.
You've already listed the most notable solutions for embedding Chromium (CEF, Chrome Frame, Awesomium). There aren't any more projects that matter.
There is still the Berkelium project (see Berkelium Sharp and Berkelium Managed), but it emebeds an old version of Chromium.
CEF is your best bet - it's fully open source and frequently updated. It's the only option that allows you to embed the latest version of Chromium. Now that Per Lundberg is actively working on porting CEF 3 to CefSharp, this is the best option for the future. There is also Xilium.CefGlue, but this one provides a low level API for CEF, it binds to the C API of CEF. CefSharp on the other hand binds to the C++ API of CEF.
Adobe is not the only major player using CEF, see other notable applications using CEF on the CEF wikipedia page.
Updating Chrome Frame is pointless since the project has been retired.
I've been searching the internet for RNG for a while now. Everything I saw was either TOO complex or was just not what I was looking for. After reading a few articles I was able to come up with this simple code.
{
Random rnd = new Random(DateTime.Now.Millisecond);
int[] b = new int[10] { 5, 8, 1, 7, 3, 2, 9, 0, 4, 6 };
textBox1.Text = Convert.ToString(b[rnd.Next(10)])
}
Simple explanation,
This works well.
To obtain a random number less than 100 use
{
Random rnd = new Random(DateTime.Now.Millisecond);
int[] b = new int[10] { 5, 8, 1, 7, 3, 2, 9, 0, 4, 6 };
int[] d = new int[10] { 9, 4, 7, 2, 8, 0, 5, 1, 3, 4 };
textBox1.Text = Convert.ToString(b[rnd.Next(10)]) + Convert.ToString(d[rnd.Next(10)]);
}
and so on for 3, 4, 5, and 6 ... digit random numbers.
Hope this assists someone positively.
Very simple use of any
df <- <your structure>
df$Den <- apply(df,1,function(i) {ifelse(any(is.na(i)) | any(i != 1), 0, 1)})
You can set a bucket policy as detailed in this blog post:
http://ariejan.net/2010/12/24/public-readable-amazon-s3-bucket-policy/
As per @robbyt's suggestion, create a bucket policy with the following JSON:
{
"Version": "2008-10-17",
"Statement": [{
"Sid": "AllowPublicRead",
"Effect": "Allow",
"Principal": { "AWS": "*" },
"Action": ["s3:GetObject"],
"Resource": ["arn:aws:s3:::bucket/*" ]
}]
}
Important: replace bucket
in the Resource
line with the name of your bucket.
Maybe it is little bit of an extreme, but I am using this super short version:
curl -svo. <URL>
Explanation:
-v
print debug information (which does include headers)
-o.
send web page data (which we want to ignore) to a certain file, .
in this case, which is a directory and is an invalid destination and makes the output to be ignored.
-s
no progress bar, no error information (otherwise you would see Warning: Failed to create the file .: Is a directory
)
warning: result always fails (in terms of error code, if reachable or not). Do not use in, say, conditional statements in shell scripting...
I just came across the same problem where I needed to wait for all the threads which were created using the for loop.I just tried out the following piece of code.It may not be the perfect solution but I thought it would be a simple solution to test:
for t in threading.enumerate():
try:
t.join()
except RuntimeError as err:
if 'cannot join current thread' in err:
continue
else:
raise
The error Illegal string offset 'whatever' in...
generally means: you're trying to use a string as a full array.
That is actually possible since strings are able to be treated as arrays of single characters in php. So you're thinking the $var is an array with a key, but it's just a string with standard numeric keys, for example:
$fruit_counts = array('apples'=>2, 'oranges'=>5, 'pears'=>0);
echo $fruit_counts['oranges']; // echoes 5
$fruit_counts = "an unexpected string assignment";
echo $fruit_counts['oranges']; // causes illegal string offset error
You can see this in action here: http://ideone.com/fMhmkR
For those who come to this question trying to translate the vagueness of the error into something to do about it, as I was.
If you only need the dynamic properties for JSON serialization/deserialization, eg if your API accepts a JSON object with different fields depending on context, then you can use the JsonExtensionData
attribute available in Newtonsoft.Json or System.Text.Json.
Example:
public class Pet
{
public string Name { get; set; }
public string Type { get; set; }
[JsonExtensionData]
public IDictionary<string, object> AdditionalData { get; set; }
}
Then you can deserialize JSON:
public class Program
{
public static void Main()
{
var bingo = JsonConvert.DeserializeObject<Pet>("{\"Name\": \"Bingo\", \"Type\": \"Dog\", \"Legs\": 4 }");
Console.WriteLine(bingo.AdditionalData["Legs"]); // 4
var tweety = JsonConvert.DeserializeObject<Pet>("{\"Name\": \"Tweety Pie\", \"Type\": \"Bird\", \"CanFly\": true }");
Console.WriteLine(tweety.AdditionalData["CanFly"]); // True
tweety.AdditionalData["Color"] = "#ffff00";
Console.WriteLine(JsonConvert.SerializeObject(tweety)); // {"Name":"Tweety Pie","Type":"Bird","CanFly":true,"Color":"#ffff00"}
}
}
The approach I would take is: when reading the chapters from the database, instead of a collection of chapters, use a collection of books. This will have your chapters organised into books and you'll be able to use information from both classes to present the information to the user (you can even present it in a hierarchical way easily when using this approach).
try this. works for me
$options = array(
'cache_wsdl' => 0,
'trace' => 1,
'stream_context' => stream_context_create(array(
'ssl' => array(
'verify_peer' => false,
'verify_peer_name' => false,
'allow_self_signed' => true
)
));
$client = new SoapClient(url, $options);
recursive CTE in exponential size (even for default of 100 recursion, this can build up to 2^100 numbers):
DECLARE @startnum INT=1000
DECLARE @endnum INT=1050
DECLARE @size INT=@endnum-@startnum+1
;
WITH numrange (num) AS (
SELECT 1 AS num
UNION ALL
SELECT num*2 FROM numrange WHERE num*2<=@size
UNION ALL
SELECT num*2+1 FROM numrange WHERE num*2+1<=@size
)
SELECT num+@startnum-1 FROM numrange order by num
Another option is:
Create a shortcut to the Eclipse.exe. Open the shortcut and change the target to:
"C:\Program Files\eclipse\eclipse.exe" -vm "c:\Program Files\Java\jdk1.7.0_04\bin\javaw.exe"
For your installation, make sure the locations point to the correct Eclipse installation directory and the correct javaw.exe
installation directory.
(The 64/32 bit versions of Eclipse and Java need to be the same, of course.)
I have wrote this simple function for myself:
function sortObj(list, key) {
function compare(a, b) {
a = a[key];
b = b[key];
var type = (typeof(a) === 'string' ||
typeof(b) === 'string') ? 'string' : 'number';
var result;
if (type === 'string') result = a.localeCompare(b);
else result = a - b;
return result;
}
return list.sort(compare);
}
for example you have list of cars:
var cars= [{brand: 'audi', speed: 240}, {brand: 'fiat', speed: 190}];
var carsSortedByBrand = sortObj(cars, 'brand');
var carsSortedBySpeed = sortObj(cars, 'speed');
If you are trying to track down which line caused an error, if you right-click in the Python shell where the line error is displayed it will come up with a "Go to file/line" which takes you directly to the line in question.
Ok, here's what I've got in my app. It includes a hack to prevent ListView
s from going black while scrolling.
drawable/app_background.xml:
<?xml version="1.0" encoding="utf-8"?>
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
android:src="@drawable/actual_pattern_image"
android:tileMode="repeat" />
values/styles.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="app_theme" parent="android:Theme">
<item name="android:windowBackground">@drawable/app_background</item>
<item name="android:listViewStyle">@style/TransparentListView</item>
<item name="android:expandableListViewStyle">@style/TransparentExpandableListView</item>
</style>
<style name="TransparentListView" parent="@android:style/Widget.ListView">
<item name="android:cacheColorHint">@android:color/transparent</item>
</style>
<style name="TransparentExpandableListView" parent="@android:style/Widget.ExpandableListView">
<item name="android:cacheColorHint">@android:color/transparent</item>
</style>
</resources>
AndroidManifest.xml:
//
<application android:theme="@style/app_theme">
//
To prevent recopy the array every time which isn't efficient
What about using Stack
csharp> var i = new Stack<byte>();
csharp> i.Push(1);
csharp> i.Push(2);
csharp> i.Push(3);
csharp> i; { 3, 2, 1 }
csharp> foreach(var x in i) {
> Console.WriteLine(x);
> }
3 2 1
The token has to be placed in an Authorization header according to the following format:
Authorization: Bearer [Token_Value]
import urllib2
import json
def get_auth_token():
"""
get an auth token
"""
req=urllib2.Request("https://xforce-api.mybluemix.net/auth/anonymousToken")
response=urllib2.urlopen(req)
html=response.read()
json_obj=json.loads(html)
token_string=json_obj["token"].encode("ascii","ignore")
return token_string
def get_response_json_object(url, auth_token):
"""
returns json object with info
"""
auth_token=get_auth_token()
req=urllib2.Request(url, None, {"Authorization": "Bearer %s" %auth_token})
response=urllib2.urlopen(req)
html=response.read()
json_obj=json.loads(html)
return json_obj
The SQL WITH clause was introduced by Oracle in the Oracle 9i release 2 database. The SQL WITH clause allows you to give a sub-query block a name (a process also called sub-query refactoring), which can be referenced in several places within the main SQL query. The name assigned to the sub-query is treated as though it was an inline view or table. The SQL WITH clause is basically a drop-in replacement to the normal sub-query.
Syntax For The SQL WITH Clause
The following is the syntax of the SQL WITH clause when using a single sub-query alias.
WITH <alias_name> AS (sql_subquery_statement)
SELECT column_list FROM <alias_name>[,table_name]
[WHERE <join_condition>]
When using multiple sub-query aliases, the syntax is as follows.
WITH <alias_name_A> AS (sql_subquery_statement),
<alias_name_B> AS(sql_subquery_statement_from_alias_name_A
or sql_subquery_statement )
SELECT <column_list>
FROM <alias_name_A>, <alias_name_B> [,table_names]
[WHERE <join_condition>]
In the syntax documentation above, the occurrences of alias_name
is a meaningful name you would give to the sub-query after the AS clause. Each sub-query should be separated with a comma Example for WITH statement. The rest of the queries follow the standard formats for simple and complex SQL SELECT queries.
For more information: http://www.brighthub.com/internet/web-development/articles/91893.aspx
$(this).find('option:selected').text();
There is an option to disable cross-origin restrictions in Safari 9, different from local file restrictions as mentioned above.
Just pass your regression model into the following function:
plot_coeffs <- function(mlr_model) {
coeffs <- coefficients(mlr_model)
mp <- barplot(coeffs, col="#3F97D0", xaxt='n', main="Regression Coefficients")
lablist <- names(coeffs)
text(mp, par("usr")[3], labels = lablist, srt = 45, adj = c(1.1,1.1), xpd = TRUE, cex=0.6)
}
Use as follows:
model <- lm(Petal.Width ~ ., data = iris)
plot_coeffs(model)
If you need to run request as the current user from desktop application use CredentialCache.DefaultCredentials
(see on MSDN).
Your code looks fine if you need to run a request from server side code or under a different user.
Please note that you should be careful when storing passwords - consider using the SecureString
version of the constructor.
To compare character you use the ==
operator:
if (c == ' ')
Deep copy literally performs a deep copy. It means, that if your class has some fields that are references, their values will be copied, not references themselves. If, for example you have two instances of a class, A & B with fields of reference type, and perform a deep copy, changing a value of that field in A won't affect a value in B. And vise-versa. Things are different with shallow copy, because only references are copied, therefore, changing this field in a copied object would affect the original object.
What type of a copy does a copy constructor does?
It is implementation - dependent. This means that there are no strict rules about that, you can implement it like a deep copy or shallow copy, however as far as i know it is a common practice to implement a deep copy in a copy constructor. A default copy constructor performs a shallow copy though.
you can use unlink
to remove the symlink.
For Example:
cd ~/projects/node-redis
npm link
cd ~/projects/node-bloggy
npm link redis # links to your local redis
To reinstall from your package.json:
npm unlink redis
npm install
https://www.tachyonstemplates.com/npm-cheat-sheet/#unlinking-a-npm-package-from-an-application
the case above is for a new project. I hit upon this error while editing a fork of a well established library.
the typedef was included in the file I was editing but the struct wasn't.
The end result being that I was attempting to edit the struct in the wrong place.
If you run into this in a similar way look for other places where the struct is edited and try it there.
Based on your edit and comments.. would this be what you're after?
byte[] newByteArray = UTF8Encoding.UTF8.GetBytes(Convert.ToBase64String(currentByteArray));
Generic:
ALTER TABLE table_name
DROP COLUMN column1,column2,column3;
E.g:
ALTER TABLE Student
DROP COLUMN Name, Number, City;
On technologies with message loops (not sure if ASP is one of them), you can block the loop and process messages until the task is over, and use ContinueWith to unblock the code:
public void WaitForTask(Task task)
{
DispatcherFrame frame = new DispatcherFrame();
task.ContinueWith(t => frame.Continue = false));
Dispatcher.PushFrame(frame);
}
This approach is similar to blocking on ShowDialog and still keeping the UI responsive.
The code below works. Replace the text within the single quotes with your image name. If it is in the same folder, if not add ../foldername/'yourimagename' I hope that helps.
NOTE:
use of the single quotes by most of the programmers is not advised but I use it and it works. Also, if you would write a PHP you would appreciate what it can do i.e. add the background image automatically from the variable etc.
<html>
<head>
<style type="text/css">
.btn-pTool{
margin:0;
padding:0;
background-image: url('your name of the field');
height:100px;
width:200px;
display:block;
}
.btn-pToolName{
text-align: center;
width: 26px;
height: 190px;
display: block;
color: #fff;
text-decoration: none;
font-family: Arial, Helvetica, sans-serif;
font-weight: bold;
font-size: 1em;
line-height: 32px;
}
</style>
</head>
<body>
<div class="pToolContainer">
<span class="btn-pTool"><a class="btn-pToolName" href="#">Test text</a></span>
<div class="pToolSlidePanel">Test text</div>
</div>
</body>
</html>
I found a work around but with this I'll need to annotate each date's setter throughout the project. Is there a way in which I can specify the format while creating the ObjectMapper?
Here's what I did:
public class CustomJsonDateDeserializer extends JsonDeserializer<Date>
{
@Override
public Date deserialize(JsonParser jsonParser,
DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
String date = jsonParser.getText();
try {
return format.parse(date);
} catch (ParseException e) {
throw new RuntimeException(e);
}
}
}
And annotated each Date field's setter method with this:
@JsonDeserialize(using = CustomJsonDateDeserializer.class)
Adding this to the Vagrantfile
worked for me. These lines are the equivalent of you entering sudo su -
every time you login. Please notice that this requires reprovisioning the VM.
config.vm.provision "shell", inline: <<-SHELL
echo "sudo su -" >> .bashrc
SHELL
The pseudo-code "implementation" of strcmp
would go something like:
define strcmp (s1, s2):
p1 = address of first character of str1
p2 = address of first character of str2
while contents of p1 not equal to null:
if contents of p2 equal to null:
return 1
if contents of p2 greater than contents of p1:
return -1
if contents of p1 greater than contents of p2:
return 1
advance p1
advance p2
if contents of p2 not equal to null:
return -1
return 0
That's basically it. Each character is compared in turn an a decision is made as to whether the first or second string is greater, based on that character.
Only if the characters are identical do you move to the next character and, if all the characters were identical, zero is returned.
Note that you may not necessarily get 1 and -1, the specs say that any positive or negative value will suffice, so you should always check the return value with < 0
, > 0
or == 0
.
Turning that into real C would be relatively simple:
int myStrCmp (const char *s1, const char *s2) {
const unsigned char *p1 = (const unsigned char *)s1;
const unsigned char *p2 = (const unsigned char *)s2;
while (*p1 != '\0') {
if (*p2 == '\0') return 1;
if (*p2 > *p1) return -1;
if (*p1 > *p2) return 1;
p1++;
p2++;
}
if (*p2 != '\0') return -1;
return 0;
}
Also keep in mind that "greater" in the context of characters is not necessarily based on simple ASCII ordering for all string functions.
C has a concept called 'locales' which specify (among other things) collation, or ordering of the underlying character set and you may find, for example, that the characters a
, á
, à
and ä
are all considered identical. This will happen for functions like strcoll
.
I use the latest version of SSMS or sql server management studio. I have a SQL script (in query editor) which has about 100 lines of code. This is error I got in the query:
Msg 245, Level 16, State 1, Line 2
Conversion failed when converting the nvarchar value 'abcd' to data type int.
Solution - I had seen this kind of error before when I forgot to enclose a number (in varchar column) in single quotes.
As an aside, the error message is misleading. The actual error on line number 70 in the query editor and not line 2 as the error says!
taskschd.msc
is available in Windows Vista and later.
http://technet.microsoft.com/en-us/library/cc721871.aspx
I could have sworn I'd seen a little task scheduler GUI like you're talking about prior to Vista, but maybe I was thinking of the "Add Scheduled Task" wizard.
You might have to settle for opening the scheduled tasks explorer with this command:
control schedtasks
I couldn't find any way to launch the "Add Scheduled Task" wizard from the command line, unfortunately (there has to be a way!)
Just Delete the migration History in _MigrationHistory in your DataBase. It worked for me
Before compiling make sure that "rules.mk" file is included properly in Makefile or include it explicitly by:
"source rules.mk"
I had to insert date at the beginning of the lines of a log file and it's done like below:
DATE=$(date +"%Y-%m-%d")
awk '{ print "'"$DATE"'", $0; }' /path_to_log_file/log_file.log
It can be redirect to another file to save
This is also found in the UINavigationController class documentation:
navigationItem.hidesBackButton = true
I got this solution for above problem
public boolean compareLists(List<MyData> prevList, List<MyData> modelList) {
if (prevList.size() == modelList.size()) {
for (MyData modelListdata : modelList) {
for (MyData prevListdata : prevList) {
if (prevListdata.getName().equals(modelListdata.getName())
&& prevListdata.isCheck() != modelListdata.isCheck()) {
return true;
}
}
}
}
else{
return true;
}
return false;
}
EDITED:-
How can we cover this...
Imagine if you had two arrays "A",true "B",true "C",true and "A",true "B",true "D",true. Even though array one has C and array two has D there's no check that will catch that(Mentioned by @Patashu)..SO for that i have made below changes.
public boolean compareLists(List<MyData> prevList, List<MyData> modelList) {
if (prevList!= null && modelList!=null && prevList.size() == modelList.size()) {
boolean indicator = false;
for (MyData modelListdata : modelList) {
for (MyData prevListdata : prevList) {
if (prevListdata.getName().equals(modelListdata.getName())
&& prevListdata.isCheck() != modelListdata.isCheck()) {
return true;
}
if (modelListdata.getName().equals(prevListdata.getName())) {
indicator = false;
break;
} else
indicator = true;
}
}
}
if (indicator)
return true;
}
}
else{
return true;
}
return false;
}
When i imported a project from another pc into my workspace, there was the default.properties but no R.java. Editing the default.properties didnt generate R.java. I changed the skd version from 1.1 to 1.5 and the R.java file was generated and the project worked.
select so.name, text
from sysobjects so, syscomments sc
where type = 'TR'
and so.id = sc.id
and text like '%YourTableName%'
This way you can list out all the triggers associated with the given table.
You can set the value in the HTML and then init datepicker to start/highlight the actual date
<input name="datefrom" type="text" class="datepicker" value="20-1-2011">
<input name="dateto" type="text" class="datepicker" value="01-01-2012">
<input name="dateto2" type="text" class="datepicker" >
$(".datepicker").each(function() {
$(this).datepicker('setDate', $(this).val());
});
The above even works with danish date formats
this worked for me:
JS:
$('#fileinput').trigger('click');
HTML:
<div class="hiddenfile">
<input name="upload" type="file" id="fileinput"/>
</div>
CSS:
.hiddenfile {
width: 0px;
height: 0px;
overflow: hidden;
}
>>>Another one that works Cross-Browser:<<<
The Idea is that you overlay an invisible huge "Browse" button over your custom button. So when the user clicks your custom button, he's actually clicking on the "Browse" button of the native input field.
JS Fiddle: http://jsfiddle.net/5Rh7b/
HTML:
<div id="mybutton">
<input type="file" id="myfile" name="upload"/>
Click Me!
</div>
CSS:
div#mybutton {
/* IMPORTANT STUFF */
overflow: hidden;
position: relative;
/* SOME STYLING */
width: 50px;
height: 28px;
border: 1px solid green;
font-weight: bold
background: red;
}
div#mybutton:hover {
background: green;
}
input#myfile {
height: 30px;
cursor: pointer;
position: absolute;
top: 0px;
right: 0px;
font-size: 100px;
z-index: 2;
opacity: 0.0; /* Standard: FF gt 1.5, Opera, Safari */
filter: alpha(opacity=0); /* IE lt 8 */
-ms-filter: "alpha(opacity=0)"; /* IE 8 */
-khtml-opacity: 0.0; /* Safari 1.x */
-moz-opacity: 0.0; /* FF lt 1.5, Netscape */
}
JavaScript:
$(document).ready(function() {
$('#myfile').change(function(evt) {
alert($(this).val());
});
});
Actually you can set some properties of a view's layer through interface builder. I know that I can set a layer's borderWidth and cornerRadius through xcode. borderColor doesn't work, probably because the layer wants a CGColor instead of a UIColor.
You might have to use Strings instead of numbers, but it works!
layer.cornerRadius
layer.borderWidth
layer.borderColor
Update: layer.masksToBounds = true
Came here looking something similar to that, but with a CASE WHEN, and ended using the where like this: WHERE (CASE WHEN COLUMN1=COLUMN2 THEN '1' ELSE '0' END) = 0
maybe you could use DATEDIFF
in the WHERE
directly.
Something like:
SELECT logcount, logUserID, maxlogtm
FROM statslogsummary
WHERE (DATEDIFF(day, maxlogtm, GETDATE())) > 120
I have tried this pure component:
const RawHTML = ({children, className = ""}) =>
<div className={className}
dangerouslySetInnerHTML={{ __html: children.replace(/\n/g, '<br />')}} />
Features
className
prop (easier to style it)\n
to <br />
(you often want to do that)<RawHTML>{myHTML}</RawHTML>
I have placed the component in a Gist at Github: RawHTML: ReactJS pure component to render HTML
Put a div
inside td
and give following style width:50px;overflow: hidden;
to the div
Jsfiddle link
<td>
<div style="width:50px;overflow: hidden;">
<span>A long string more than 50px wide</span>
</div>
</td>
Use try-except to handle the error and repeat it again:
while True:
try:
age = int(input("Please enter your age: "))
if age >= 18:
print("You are able to vote in the United States!")
else:
print("You are not able to vote in the United States.")
except Exception as e:
print("please enter number")
You can go for recursive approach:
Here is the pseudo code:
Node* reverse(Node* root)
{
if(!root) return NULL;
if(!(root->next)) temp = root;
else
{
reverse(root->next);
root->next->next = root;
root->next = NULL;
}
return temp;
}
After the call is made to the function, it returns the new root[temp
] of the linked list.
As it is very clear that it makes use of only two pointers.
Just be careful. You will get this message if you try to enter a command that doesn't exist like this
/usr/bin/java -v
Actually it's:
request.getHeader("Referer")
,
or even better, and to be 100% sure,
request.getHeader(HttpHeaders.REFERER)
,
where HttpHeaders is com.google.common.net.HttpHeaders
I had a similar problem. I have a class;
Action<T>
which has a property of type T.
How do I get the property when I don't know T? I can't cast to Action<> unless I know T.
SOLUTION:
Implement a non-generic interface;
public interface IGetGenericTypeInstance
{
object GenericTypeInstance();
}
Now I can cast the object to IGetGenericTypeInstance and GenericTypeInstance will return the property as type object.
If you don't need mutability for your final map, there is Guava's ImmutableMap
with its Builder
and putAll
method which, in contrast to Java's Map
interface method, can be chained.
Example of use:
Map<String, Integer> mergeMyTwoMaps(Map<String, Integer> map1, Map<String, Integer> map2) {
return ImmutableMap.<String, Integer>builder()
.putAll(map1)
.putAll(map2)
.build();
}
Of course, this method can be more generic, use varargs and loop to putAll
Maps
from arguments etc. but I wanted to show a concept.
Also, ImmutableMap
and its Builder
have few limitations (or maybe features?):
NullPointerException
- if any key or value in map is null)IllegalArgumentException
if duplicate keys were added).For better explain Dave Morrissey's answer I have made these steps for wrap with Console Output class in a laravel facade.
1) Create a Facade in your prefer folder (in my case app\Facades):
class ConsoleOutput extends Facade {
protected static function getFacadeAccessor() {
return 'consoleOutput';
}
}
2) Register a new Service Provider in app\Providers as follow:
class ConsoleOutputServiceProvider extends ServiceProvider
{
public function register(){
App::bind('consoleOutput', function(){
return new \Symfony\Component\Console\Output\ConsoleOutput();
});
}
}
3) Add all this stuffs in config\app.php file, registering the provider and alias.
'providers' => [
//other providers
App\Providers\ConsoleOutputServiceProvider::class
],
'aliases' => [
//other aliases
'ConsoleOutput' => App\Facades\ConsoleOutput::class,
],
That's it, now in any place of your Laravel application, just call your method in this way:
ConsoleOutput::writeln('hello');
Hope this help you.
As an alternative approach, you can save the SBT Extras script to a file called sbt.sh and set the permission to executable. Then add this file to your path, or just put it under your ~/bin directory.
The bonus here, is that it will download and use the correct version of SBT depending on your project properties. This is a nice convenience if you tend to compile open source projects that you pull from GitHub and other.
Before run the jar check Main-Class: classname
is available or not in MANIFEST.MF file. MANIFEST.MF is present in jar.
java -jar filename.jar
I feel like this has been well covered, maybe except for the following:
Simple KEY
/ INDEX
(or otherwise called SECONDARY INDEX
) do increase performance if selectivity is sufficient. On this matter, the usual recommendation is that if the amount of records in the result set on which an index is applied exceeds 20% of the total amount of records of the parent table, then the index will be ineffective. In practice each architecture will differ but, the idea is still correct.
Secondary Indexes (and that is very specific to mysql) should not be seen as completely separate and different objects from the primary key. In fact, both should be used jointly and, once this information known, provide an additional tool to the mysql DBA: in Mysql, indexes embed the primary key. It leads to significant performance improvements, specifically when cleverly building implicit covering indexes such as described there.
If you feel like your data should be UNIQUE
, use a unique index. You may think it's optional (for instance, working it out at application level) and that a normal index will do, but it actually represents a guarantee for Mysql that each row is unique, which incidentally provides a performance benefit.
You can only use FULLTEXT
(or otherwise called SEARCH INDEX
) with Innodb (In MySQL 5.6.4 and up) and Myisam Engines
You can only use FULLTEXT
on CHAR
, VARCHAR
and TEXT
column types
FULLTEXT
index involves a LOT more than just creating an index. There's a bunch of system tables created, a completely separate caching system and some specific rules and optimizations applied. See http://dev.mysql.com/doc/refman/5.7/en/fulltext-restrictions.html and http://dev.mysql.com/doc/refman/5.7/en/innodb-fulltext-index.html
You can use the below method, which will take your target URL as the only input (Don't forget http://)
void GoToURL(String url){
Uri uri = Uri.parse(url);
Intent intent= new Intent(Intent.ACTION_VIEW,uri);
startActivity(intent);
}
This error
Failure [INSTALL_FAILED_OLDER_SDK]
Means that you're trying to install an app that has a higher minSdkVersion
specified in its manifest than the device's API level. Change that number to 8
and it should work. I'm not sure about the other error, but it may be related to this one.
In WPF, you use a DispatcherTimer
.
System.Windows.Threading.DispatcherTimer dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
dispatcherTimer.Interval = new TimeSpan(0,5,0);
dispatcherTimer.Start();
private void dispatcherTimer_Tick(object sender, EventArgs e)
{
// code goes here
}
Looking at Ruby only:
TL;DR
Use none?
passing it a block with ==
for the comparison:
[1, 2].include?(1)
#=> true
[1, 2].none? { |n| 1 == n }
#=> false
Array#include?
accepts one argument and uses ==
to check against each element in the array:
player = [1, 2, 3]
player.include?(1)
#=> true
Enumerable#none?
can also accept one argument in which case it uses ===
for the comparison. To get the opposing behaviour to include?
we omit the parameter and pass it a block using ==
for the comparison.
player.none? { |n| 7 == n }
#=> true
!player.include?(7) #notice the '!'
#=> true
In the above example we can actually use:
player.none?(7)
#=> true
That's because Integer#==
and Integer#===
are equivalent. But consider:
player.include?(Integer)
#=> false
player.none?(Integer)
#=> false
none?
returns false
because Integer === 1 #=> true
. But really a legit notinclude?
method should return true
. So as we did before:
player.none? { |e| Integer == e }
#=> true
You can't set colour of the padding.
You will have to create a wrapper element with the desired background colour. Add border to this element and set it's padding.
Look here for an example: http://jsbin.com/abanek/1/edit
create your cell by xib or storyboard. give it's outlet's contents. now call it in CellForRowAtIndexPath. eg. if you want to set cell height according to Comment's label text.
so set you commentsLbl.numberOfLine=0;
so set you commentsLbl.numberOfLine=0;
then in ViewDidLoad
self.table.estimatedRowHeight = 44.0 ;
self.table.rowHeight = UITableViewAutomaticDimension;
and now
-(float)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
return UITableViewAutomaticDimension;}
The comma separated list option is the easiest but becomes challenging if the values could include commas.
Here is an example of the a.1, a.2, ... approach:
for (String value : getPropertyList(prop, "a"))
{
System.out.println(value);
}
public static List<String> getPropertyList(Properties properties, String name)
{
List<String> result = new ArrayList<String>();
for (Map.Entry<Object, Object> entry : properties.entrySet())
{
if (((String)entry.getKey()).matches("^" + Pattern.quote(name) + "\\.\\d+$"))
{
result.add((String) entry.getValue());
}
}
return result;
}
Here's an example:
#Create a data frame
> d<- data.frame(a=1:3, b=2:4)
> d
a b
1 1 2
2 2 3
3 3 4
#currently, there are no levels in the `a` column, since it's numeric as you point out.
> levels(d$a)
NULL
#Convert that column to a factor
> d$a <- factor(d$a)
> d
a b
1 1 2
2 2 3
3 3 4
#Now it has levels.
> levels(d$a)
[1] "1" "2" "3"
You can also handle this when reading in your data. See the colClasses
and stringsAsFactors
parameters in e.g. readCSV()
.
Note that, computationally, factoring such columns won't help you much, and may actually slow down your program (albeit negligibly). Using a factor will require that all values are mapped to IDs behind the scenes, so any print of your data.frame requires a lookup on those levels -- an extra step which takes time.
Factors are great when storing strings which you don't want to store repeatedly, but would rather reference by their ID. Consider storing a more friendly name in such columns to fully benefit from factors.
Simply add additional characters like "=" or any other and make it a multiple of 4 before you try decoding the target string value. Something like;
if len(value) % 4 != 0: #check if multiple of 4
while len(value) % 4 != 0:
value = value + "="
req_str = base64.b64decode(value)
else:
req_str = base64.b64decode(value)
For people coming to this late: Java 7 adds named groups. Matcher.group(String groupName) documentation.
Interpreting newlines as <br />
used to be a feature of Github-flavored markdown, but the most recent help document no longer lists this feature.
Fortunately, you can do it manually. The easiest way is to ensure that each line ends with two spaces. So, change
a
b
c
into
a__
b__
c
(where _
is a blank space).
Or, you can add explicit <br />
tags.
a <br />
b <br />
c
I will answer this with a general answer. Usually these answers not working with guids. Here is a working version with guids too.
var stringVal="6e3ba183-89d9-e611-80c2-00155dcfb231"; // guid value as string to set
var prop = obj.GetType().GetProperty("FooGuidProperty"); // property to be setted
var propType = prop.PropertyType;
// var will be type of guid here
var valWithRealType = TypeDescriptor.GetConverter(propType).ConvertFrom(stringVal);
Its very simple, use this one line code dataSheet.autoSizeColumn(0)
or give the number of column in bracket dataSheet.autoSizeColumn(cell number )
This worked for me:
Source: Download and Install Google Nexus 5 USB Drivers (ADB / Fastboot)
Here's a demo: http://www.w3.org/Style/Examples/007/center-example
A method (JSFiddle example)
CSS:
html, body {
margin: 0;
padding: 0;
width: 100%;
height: 100%;
display: table
}
#content {
display: table-cell;
text-align: center;
vertical-align: middle;
}
HTML:
<div id="content">
Content goes here
</div>
Another method (JSFiddle example)
CSS
body, html, #wrapper {
width: 100%;
height: 100%
}
#wrapper {
display: table
}
#main {
display: table-cell;
vertical-align: middle;
text-align:center
}
HTML
<div id="wrapper">
<div id="main">
Content goes here
</div>
</div>
See also this previous answer which recommends the not
keyword
How to check if a list is empty in Python?
It generalizes to more than just lists:
>>> a = ""
>>> not a
True
>>> a = []
>>> not a
True
>>> a = 0
>>> not a
True
>>> a = 0.0
>>> not a
True
>>> a = numpy.array([])
>>> not a
True
Notably, it will not work for "0" as a string because the string does in fact contain something - a character containing "0". For that you have to convert it to an int:
>>> a = "0"
>>> not a
False
>>> a = '0'
>>> not int(a)
True
To get the value from the servlet from POST
command, you can follow the approach as explained on this post by using request.getParameter(key)
format which will return the value you want.
I had to run this for a column introduced in the later stages of a product, on 10+ tables. So wrote this quick untidy script to generate the alter command for all 'relevant' tables.
SET @NeighboringColumn = '<YOUR COLUMN SHOULD COME AFTER THIS COLUMN>';
SELECT CONCAT("ALTER TABLE `",t.TABLE_NAME,"` CHANGE COLUMN `",COLUMN_NAME,"`
`",COLUMN_NAME,"` ", c.DATA_TYPE, CASE WHEN c.CHARACTER_MAXIMUM_LENGTH IS NOT
NULL THEN CONCAT("(", c.CHARACTER_MAXIMUM_LENGTH, ")") ELSE "" END ," AFTER
`",@NeighboringColumn,"`;")
FROM information_schema.COLUMNS c, information_schema.TABLES t
WHERE c.TABLE_SCHEMA = '<YOUR SCHEMA NAME>'
AND c.COLUMN_NAME = '<COLUMN TO MOVE>'
AND c.TABLE_SCHEMA = t.TABLE_SCHEMA
AND c.TABLE_NAME = t.TABLE_NAME
AND t.TABLE_TYPE = 'BASE TABLE'
AND @NeighboringColumn IN (SELECT COLUMN_NAME
FROM information_schema.COLUMNS c2
WHERE c2.TABLE_NAME = t.TABLE_NAME);
Building on the suggestion of using drawImage you could also combine this with scale function.
So before you draw the image scale the context to the zoom level you want:
ctx.scale(2, 2) // Doubles size of anything draw to canvas.
I've created a small example here http://jsfiddle.net/mBzVR/4/ that uses drawImage and scale to zoom in on mousedown and out on mouseup.
Show the difference between local and remote tags:
diff <(git tag | sort) <( git ls-remote --tags origin | cut -f2 | grep -v '\^' | sed 's#refs/tags/##' | sort)
git tag
gives the list of local tagsgit ls-remote --tags
gives the list of full paths to remote tagscut -f2 | grep -v '\^' | sed 's#refs/tags/##'
parses out just the tag name from list of remote tag pathsThe lines starting with "< " are your local tags that are no longer in the remote repo. If they are few, you can remove them manually one by one, if they are many, you do more grep-ing and piping to automate it.
<template>
Demo
"use strict";_x000D_
_x000D_
/**_x000D_
*_x000D_
* @author xgqfrms_x000D_
* @license MIT_x000D_
* @copyright xgqfrms_x000D_
* @description HTML5 Template_x000D_
* @augments_x000D_
* @example_x000D_
*_x000D_
*/_x000D_
_x000D_
/*_x000D_
_x000D_
<template>_x000D_
<h2>Flower</h2>_x000D_
<img src="https://www.w3schools.com/tags/img_white_flower.jpg">_x000D_
</template>_x000D_
_x000D_
_x000D_
<template>_x000D_
<div class="myClass">I like: </div>_x000D_
</template>_x000D_
_x000D_
*/_x000D_
_x000D_
const showContent = () => {_x000D_
// let temp = document.getElementsByTagName("template")[0],_x000D_
let temp = document.querySelector(`[data-tempalte="tempalte-img"]`),_x000D_
clone = temp.content.cloneNode(true);_x000D_
document.body.appendChild(clone);_x000D_
};_x000D_
_x000D_
const templateGenerator = (datas = [], debug = false) => {_x000D_
let result = ``;_x000D_
// let temp = document.getElementsByTagName("template")[1],_x000D_
let temp = document.querySelector(`[data-tempalte="tempalte-links"]`),_x000D_
item = temp.content.querySelector("div");_x000D_
for (let i = 0; i < datas.length; i++) {_x000D_
let a = document.importNode(item, true);_x000D_
a.textContent += datas[i];_x000D_
document.body.appendChild(a);_x000D_
}_x000D_
return result;_x000D_
};_x000D_
_x000D_
const arr = ["Audi", "BMW", "Ford", "Honda", "Jaguar", "Nissan"];_x000D_
_x000D_
if (document.createElement("template").content) {_x000D_
console.log("YES! The browser supports the template element");_x000D_
templateGenerator(arr);_x000D_
setTimeout(() => {_x000D_
showContent();_x000D_
}, 0);_x000D_
} else {_x000D_
console.error("No! The browser does not support the template element");_x000D_
}
_x000D_
@charset "UTf-8";_x000D_
_x000D_
/* test.css */_x000D_
_x000D_
:root {_x000D_
--cololr: #000;_x000D_
--default-cololr: #fff;_x000D_
--new-cololr: #0f0;_x000D_
}_x000D_
_x000D_
[data-class="links"] {_x000D_
color: white;_x000D_
background-color: DodgerBlue;_x000D_
padding: 20px;_x000D_
text-align: center;_x000D_
margin: 10px;_x000D_
}
_x000D_
<!DOCTYPE html>_x000D_
<html lang="zh-Hans">_x000D_
_x000D_
<head>_x000D_
<meta charset="UTF-8">_x000D_
<meta name="viewport" content="width=device-width, initial-scale=1.0">_x000D_
<meta http-equiv="X-UA-Compatible" content="ie=edge">_x000D_
<title>Template Test</title>_x000D_
<!--[if lt IE 9]>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.js"></script>_x000D_
<![endif]-->_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<section>_x000D_
<h1>Template Test</h1>_x000D_
</section>_x000D_
<template data-tempalte="tempalte-img">_x000D_
<h3>Flower Image</h3>_x000D_
<img src="https://www.w3schools.com/tags/img_white_flower.jpg">_x000D_
</template>_x000D_
<template data-tempalte="tempalte-links">_x000D_
<h3>links</h3>_x000D_
<div data-class="links">I like: </div>_x000D_
</template>_x000D_
<!-- js -->_x000D_
</body>_x000D_
_x000D_
</html>
_x000D_
Below code will only print files within directory and exclude directories within given directory while traversing.
#include <dirent.h>
#include <stdio.h>
#include <errno.h>
#include <sys/stat.h>
#include<string.h>
int main(void)
{
DIR *d;
struct dirent *dir;
char path[1000]="/home/joy/Downloads";
d = opendir(path);
char full_path[1000];
if (d)
{
while ((dir = readdir(d)) != NULL)
{
//Condition to check regular file.
if(dir->d_type==DT_REG){
full_path[0]='\0';
strcat(full_path,path);
strcat(full_path,"/");
strcat(full_path,dir->d_name);
printf("%s\n",full_path);
}
}
closedir(d);
}
return(0);
}
Alternatively YUI has http://yuilibrary.com/yui/docs/api/classes/QueryString.html#method_stringify.
For example:
var data = { one: 'first', two: 'second' };
var result = Y.QueryString.stringify(data);
Configure After pushing the code when you get a rejected message, click on configure and click Add spec as shown in this picture
Drop down and click on the ref/heads/yourbranchname and click on Add Spec again
In eclipse preferences, go to Java->Installed JREs->Execution Environment and set up a JRE Execution Environment for J2SE-1.4
knockoutJs Inbuild library validation functions
By extending it the field get validated
1) number
self.number = ko.observable(numberValue)
.extend({ number: true});
TestCase
numberValue = '0.0' --> true
numberValue = '0' --> true
numberValue = '25' --> true
numberValue = '-1' --> true
numberValue = '-3.5' --> true
numberValue = '11.112' --> true
numberValue = '0x89f' --> false
numberValue = '' --> false
numberValue = 'sfsd' --> false
numberValue = 'dg##$' --> false
2) digit
self.number = ko.observable(numberValue)
.extend({ digit: true});
TestCase
numberValue = '0' --> true
numberValue = '25' --> true
numberValue = '0.0' --> false
numberValue = '-1' --> false
numberValue = '-3.5' --> false
numberValue = '11.112' --> false
numberValue = '0x89f' --> false
numberValue = '' --> false
numberValue = 'sfsd' --> false
numberValue = 'dg##$' --> false
3) min and max
self.number = ko.observable(numberValue)
.extend({ min: 5}).extend({ max: 10});
This field accept value between 5 and 10 only
TestCase
numberValue = '5' --> true
numberValue = '6' --> true
numberValue = '6.5' --> true
numberValue = '9' --> true
numberValue = '11' --> false
numberValue = '0' --> false
numberValue = '' --> false
If you have small array you can use filter
:
myArray = ['a', 'b', 'c', 'd'];
myArray = myArray.filter(x => x !== 'b');
In WPF
apps This code working perfectly
private void txt1_KeyDown(object sender, KeyEventArgs e)
{
if (Keyboard.IsKeyDown(Key.Enter) )
{
Button_Click(this, new RoutedEventArgs());
}
}
Somehow, where you are using Sentry, you're not using its Facade, but the class itself. When you call a class through a Facade you're not really using statics, it's just looks like you are.
Do you have this:
use Cartalyst\Sentry\Sentry;
In your code?
Ok, but if this line is working for you:
$user = $this->sentry->register(array( 'username' => e($data['username']), 'email' => e($data['email']), 'password' => e($data['password']) ));
So you already have it instantiated and you can surely do:
$adminGroup = $this->sentry->findGroupById(5);
A different approach to the problem:
struct A {
static const map<int, string> * singleton_map() {
static map<int, string>* m = NULL;
if (!m) {
m = new map<int, string>;
m[42] = "42"
// ... other initializations
}
return m;
}
// rest of the class
}
This is more efficient, as there is no one-type copy from stack to heap (including constructor, destructors on all elements). Whether this matters or not depends on your use case. Does not matter with strings! (but you may or may not find this version "cleaner")
Pure JavaScript:
var button = document.getElementById('button'); // Assumes element with id='button'
button.onclick = function() {
var div = document.getElementById('newpost');
if (div.style.display !== 'none') {
div.style.display = 'none';
}
else {
div.style.display = 'block';
}
};
jQuery:
$("#button").click(function() {
// assumes element with id='button'
$("#newpost").toggle();
});
If you know the folder you want to navigate to, find the index of it then substring.
var ind = Directory.GetCurrentDirectory().ToString().IndexOf("Folderame");
string productFolder = Directory.GetCurrentDirectory().ToString().Substring(0, ind);
Generate random number in the range of 0 to n (signed 16-bit integer). Result set in $RAND variable. For example:
#!/bin/bash
random()
{
local range=${1:-1}
RAND=`od -t uI -N 4 /dev/urandom | awk '{print $2}'`
let "RAND=$RAND%($range+1)"
}
n=10
while [ $(( n -=1 )) -ge "0" ]; do
random 500
echo "$RAND"
done
<?php
// run query
$query = mysql_query("SELECT * FROM table");
// set array
$array = array();
// look through query
while($row = mysql_fetch_assoc($query)){
// add each row returned into an array
$array[] = $row;
// OR just echo the data:
echo $row['username']; // etc
}
// debug:
print_r($array); // show all array data
echo $array[0]['username']; // print the first rows username
Here is a new way to work with SQL views in EF Core: Query Types.
Note that the file:///
scheme does not work on the compact framework, at least it doesn't with 5.0.
You will need to use the following:
string appDir = Path.GetDirectoryName(
Assembly.GetExecutingAssembly().GetName().CodeBase);
webBrowser1.Url = new Uri(Path.Combine(appDir, @"Documentation\index.html"));
Could not find stored procedure?---- means when you get this.. our code like this
String sp="{call GetUnitReferenceMap}";
stmt=conn.prepareCall(sp);
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
currencyMap.put(rs.getString(1).trim(), rs.getString(2).trim());
I have 4 DBs(sample1, sample2, sample3) But stmt
will search location is master
Default DB then we will get Exception.
we should provide DB name then problem resolves::
String sp="{call sample1..GetUnitReferenceMap}";
This is good for shallow cloning. The object spread is a standard part of ECMAScript 2018.
For deep cloning you'll need a different solution.
const clone = {...original}
to shallow clone
const newobj = {...original, prop: newOne}
to immutably add another prop to the original and store as a new object.
Like this:
$(".target").each(function(){
var images = $(this).find(".scrolling img");
var width = images.width();
var imgLength = images.length;
$(this).find(".scrolling").width( width * imgLength * 1.2 );
});
The $(this)
refers to the current .target
which will be looped through. Within this .target
I'm looking for the .scrolling img
and get the width. And then keep on going...
Images with different widths
If you want to calculate the width of all images (when they have different widths) you can do it like this:
// Get the total width of a collection.
$.fn.getTotalWidth = function(){
var width = 0;
this.each(function(){
width += $(this).width();
});
return width;
}
$(".target").each(function(){
var images = $(this).find(".scrolling img");
var width = images.getTotalWidth();
$(this).find(".scrolling").width( width * 1.2 );
});
From the documentation (any version):
It is your application’s responsibility to dismiss the keyboard at the time of your choosing. You might dismiss the keyboard in response to a specific user action, such as the user tapping a particular button in your user interface. You might also configure your text field delegate to dismiss the keyboard when the user presses the “return” key on the keyboard itself. To dismiss the keyboard, send the resignFirstResponder message to the text field that is currently the first responder. Doing so causes the text field object to end the current editing session (with the delegate object’s consent) and hide the keyboard.
So, you have to send resignFirstResponder somehow. But there is a possibility that textfield loses focus another way during processing of textFieldShouldReturn: message. This also will cause keyboard to disappear.
The conventional way of handling this doesn't play well with ES6. You can do this instead:
$('.delete').on('click', event => {
const clickedElement = $(event.target);
this.delete(clickedElement.data('id'));
});
Note that the event target will be the clicked element, which may not be the element you want (it could be a child that received the event). To get the actual element:
$('.delete').on('click', event => {
const clickedElement = $(event.target);
const targetElement = clickedElement.closest('.delete');
this.delete(targetElement.data('id'));
});
detect two fingers pinch zoom on any element, easy and w/o hassle with 3rd party libs like Hammer.js (beware, hammer has issues with scrolling!)
function onScale(el, callback) {
let hypo = undefined;
el.addEventListener('touchmove', function(event) {
if (event.targetTouches.length === 2) {
let hypo1 = Math.hypot((event.targetTouches[0].pageX - event.targetTouches[1].pageX),
(event.targetTouches[0].pageY - event.targetTouches[1].pageY));
if (hypo === undefined) {
hypo = hypo1;
}
callback(hypo1/hypo);
}
}, false);
el.addEventListener('touchend', function(event) {
hypo = undefined;
}, false);
}
Try this configuration:
position to absolute
width to 100%
height to 100px
bottom to 10
background-color: blue
This can help actually move the div to the bottom. Just modify accordingly.
Are you sure that all the lines have at least 2 columns? Can you try something like, just to check?:
sc.textFile("file.csv") \
.map(lambda line: line.split(",")) \
.filter(lambda line: len(line)>1) \
.map(lambda line: (line[0],line[1])) \
.collect()
Alternatively, you could print the culprit (if any):
sc.textFile("file.csv") \
.map(lambda line: line.split(",")) \
.filter(lambda line: len(line)<=1) \
.collect()
I think maybe you installed redis by source code.If that you need locate to redis-source-code-path/utils and run sudo install_server.sh
command.
After that, make sure redis-server has been running as a service for your system
sudo service redis-server status
PS: based on Debian/Ubuntu
#alertlist li:hover:after,#alertlist li.selected:after
{
position:absolute;
top: 0;
right:-10px;
bottom:0;
border-top: 10px solid transparent;
border-bottom: 10px solid transparent;
border-left: 10px solid #303030;
content: "";
}?
If you put set -e
in a script, the script will terminate as soon as any command inside it fails (i.e. as soon as any command returns a nonzero status). This doesn't let you write your own message, but often the failing command's own messages are enough.
The advantage of this approach is that it's automatic: you don't run the risk of forgetting to deal with an error case.
Commands whose status is tested by a conditional (such as if
, &&
or ||
) do not terminate the script (otherwise the conditional would be pointless). An idiom for the occasional command whose failure doesn't matter is command-that-may-fail || true
. You can also turn set -e
off for a part of the script with set +e
.
If double quotes does not work , try including the string within square brackets.
For eg:
SELECT "Business Name","Other Name" FROM your_Table
can be changed as
SELECT [Business Name],[Other Name] FROM your_Table
@echo off
(echo this is in the first line) > xy.txt
(echo this is in the second line) >> xy.txt
exit
The two >>
means that the second line will be appended to the file (i.e. second line will start after the last line of xy.txt).
this is how the xy.txt
looks like:
this is in the first line
this is in the second line
This might work for you:
cat <<\! >names.txt
> alison
> barb
> charlie
> david
> !
OIFS=$IFS; IFS=$'\n'; NAMES=($(<names.txt)); IFS=$OIFS
echo "${NAMES[@]}"
alison barb charlie david
echo "${NAMES[0]}"
alison
for NAME in "${NAMES[@]}";do echo $NAME;done
alison
barb
charlie
david
SET UP THE REPOSITORY
For Ubuntu 14.04/16.04/16.10/17.04:
sudo add-apt-repository "deb [arch=amd64] \
https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
For Ubuntu 17.10:
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu zesty stable"
Add Docker’s official GPG key:
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
Then install
$ sudo apt-get update && sudo apt-get -y install docker-ce
A snippet out of the MSDN:
'The following code sample shows how to create a DateTimePicker that enables users to choose a time only.'
timePicker = new DateTimePicker();
timePicker.Format = DateTimePickerFormat.Time;
timePicker.ShowUpDown = true;
Update: Some people say one should -never- use eval. I disagree. I think the risk arises when corrupt input can be passed to eval
. However there are many common situations where that is not a risk, and therefore it is worth knowing how to use eval in any case. This stackoverflow answer explains the risks of eval and alternatives to eval. Ultimately it is up to the user to determine if/when eval is safe and efficient to use.
The bash eval
statement allows you to execute lines of code calculated or acquired, by your bash script.
Perhaps the most straightforward example would be a bash program that opens another bash script as a text file, reads each line of text, and uses eval
to execute them in order. That's essentially the same behavior as the bash source
statement, which is what one would use, unless it was necessary to perform some kind of transformation (e.g. filtering or substitution) on the content of the imported script.
I rarely have needed eval
, but I have found it useful to read or write variables whose names were contained in strings assigned to other variables. For example, to perform actions on sets of variables, while keeping the code footprint small and avoiding redundancy.
eval
is conceptually simple. However, the strict syntax of the bash language, and the bash interpreter's parsing order can be nuanced and make eval
appear cryptic and difficult to use or understand. Here are the essentials:
The argument passed to eval
is a string expression that is calculated at runtime. eval
will execute the final parsed result of its argument as an actual line of code in your script.
Syntax and parsing order are stringent. If the result isn't an executable line of bash code, in scope of your script, the program will crash on the eval
statement as it tries to execute garbage.
When testing you can replace the eval
statement with echo
and look at what is displayed. If it is legitimate code in the current context, running it through eval
will work.
Example 1:
eval
statement in front of 'normal' code is a NOP$ eval a=b
$ eval echo $a
b
In the above example, the first eval
statements has no purpose and can be eliminated. eval
is pointless in the first line because there is no dynamic aspect to the code, i.e. it already parsed into the final lines of bash code, thus it would be identical as a normal statement of code in the bash script. The 2nd eval
is pointless too, because, although there is a parsing step converting $a
to its literal string equivalent, there is no indirection (e.g. no referencing via string value of an actual bash noun or bash-held script variable), so it would behave identically as a line of code without the eval
prefix.
Example 2:
$ key="mykey"
$ val="myval"
$ eval $key=$val
$ echo $mykey
myval
If you were to echo $key=$val
, the output would be:
mykey=myval
That, being the final result of string parsing, is what will be executed by eval, hence the result of the echo statement at the end...
Example 3:
$ keyA="keyB"
$ valA="valB"
$ keyB="that"
$ valB="amazing"
$ eval eval \$$keyA=\$$valA
$ echo $that
amazing
The above is a bit more complicated than the previous example, relying more heavily on the parsing-order and peculiarities of bash. The eval
line would roughly get parsed internally in the following order (note the following statements are pseudocode, not real code, just to attempt to show how the statement would get broken down into steps internally to arrive at the final result).
eval eval \$$keyA=\$$valA # substitution of $keyA and $valA by interpreter
eval eval \$keyB=\$valB # convert '$' + name-strings to real vars by eval
eval $keyB=$valB # substitution of $keyB and $valB by interpreter
eval that=amazing # execute string literal 'that=amazing' by eval
If the assumed parsing order doesn't explain what eval is doing enough, the third example may describe the parsing in more detail to help clarify what is going on.
Example 4:
a="User-provided"
b="Another user-provided optional value"
c=""
myvarname_a="a"
myvarname_b="b"
myvarname_c="c"
for varname in "myvarname_a" "myvarname_b" "myvarname_c"; do
eval varval=\$$varname
if [ -z "$varval" ]; then
read -p "$varname? " $varname
fi
done
In the first iteration:
varname="myvarname_a"
Bash parses the argument to eval
, and eval
sees literally this at runtime:
eval varval=\$$myvarname_a
The following pseudocode attempts to illustrate how bash interprets the above line of real code, to arrive at the final value executed by eval
. (the following lines descriptive, not exact bash code):
1. eval varval="\$" + "$varname" # This substitution resolved in eval statement
2. .................. "$myvarname_a" # $myvarname_a previously resolved by for-loop
3. .................. "a" # ... to this value
4. eval "varval=$a" # This requires one more parsing step
5. eval varval="User-provided" # Final result of parsing (eval executes this)
Once all the parsing is done, the result is what is executed, and its effect is obvious, demonstrating there is nothing particularly mysterious about eval
itself, and the complexity is in the parsing of its argument.
varval="User-provided"
The remaining code in the example above simply tests to see if the value assigned to $varval is null, and, if so, prompts the user to provide a value.
For me this was the best solution:
HTML:
<div id="outer">
<img src="logo.png">
</div>
CSS:
#outer {
position: fixed;
top: 50%;
left: 50%;
/* bring your own prefixes */
transform: translate(-50%, -50%);
}
Best is to just Apply margin-top: 2px
on the input element.
Bootstrap adds a margin-top: 4px
to input element causing radio button to move down than the content.
If it's in the same class with the equal number of parameters with the same types and order, then it is not possible for example:
int methoda(String a,int b) {
return b;
}
String methoda(String b,int c) {
return b;
}
if the number of parameters and their types is same but order is different then it is possible since it results in method overloading. It means if the method signature is same which includes method name with number of parameters and their types and the order they are defined.
You can use btn-lg
, btn-sm
and btn-xs
classes for manipulating with its size.
btn-block
Also, there is a class btn-block
which will extend your button to the whole block. It is very convenient in combination with Bootstrap grid.
For example, this code will show a button with the width equal to half of screen for medium and large screens; and will show a full-width button for small screens:
<div class="container">
<div class="col-xs-12 col-xs-offset-0 col-sm-offset-3 col-sm-6">
<button class="btn btn-group">Click me!</button>
</div>
</div>
Check this JSFiddle out. Try to resize frame.
If it is not enough, you can easily create your custom class.
If I imagined that you set android:configChanges
in manifest.xml and create several directory for several language such as: values-fr OR values-nl
, I could suggest this code(In Activity class):
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btn = (Button) findViewById(R.id.btn);
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// change language by onclick a button
Configuration newConfig = new Configuration();
newConfig.locale = Locale.FRENCH;
onConfigurationChanged(newConfig);
}
});
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
getBaseContext().getResources().updateConfiguration(newConfig, getBaseContext().getResources().getDisplayMetrics());
setContentView(R.layout.main);
setTitle(R.string.app_name);
// Checks the active language
if (newConfig.locale == Locale.ENGLISH) {
Toast.makeText(this, "English", Toast.LENGTH_SHORT).show();
} else if (newConfig.locale == Locale.FRENCH){
Toast.makeText(this, "French", Toast.LENGTH_SHORT).show();
}
}
I tested this code, It is correct.