I tried with and it works
use mysql; # use mysql table
update user set authentication_string="" where User='root';
flush privileges;
quit;
If unsure, you might use the 'cols' request on the terminal, and forget COLUMNS:
COLS=$(tput cols)
Adding AngularFirestoreModule.enablePersistence()
in import section resolved my issue:
imports: [
BrowserModule, AngularFireModule,
AngularFireModule.initializeApp(config),
AngularFirestoreModule.enablePersistence()
]
As an aside, it is always a good practice (and possibly a solution for this type of issue) to delete a large number of rows by using batches:
WHILE EXISTS (SELECT 1
FROM YourTable
WHERE <yourCondition>)
DELETE TOP(10000) FROM YourTable
WHERE <yourCondition>
You can use the following command to clear out ALL variables. Be careful because it you cannot get your variables back.
rm(list=ls(all=TRUE))
1) When the user logs out (Forms signout in Action) I want to redirect to a login page.
public ActionResult Logout() {
//log out the user
return RedirectToAction("Login");
}
2) In a Controller or base Controller event eg Initialze, I want to redirect to another page (AbsoluteRootUrl + Controller + Action)
Why would you want to redirect from a controller init?
the routing engine automatically handles requests that come in, if you mean you want to redirect from the index action on a controller simply do:
public ActionResult Index() {
return RedirectToAction("whateverAction", "whateverController");
}
In code, you need to explicitly create a Brush
instance:
Fill = new SolidColorBrush(Color.FromArgb(0xff, 0xff, 0x90))
Somehow we are not able to change the Tab Bar selected item Tint color using storyboard alone, hence I added below code in my ViewDidLoad, hope this helps.
[[UITabBar appearance] setTintColor:[UIColor whiteColor]];
Although pretty much all answers here are already correct, if anyone is in search of a quick solution I have a directive for this. https://www.npmjs.com/package/vue-lazy-input
It applies to @input and v-model, supports custom components and DOM elements, debounce and throttle.
Vue.use(VueLazyInput)_x000D_
new Vue({_x000D_
el: '#app', _x000D_
data() {_x000D_
return {_x000D_
val: 42_x000D_
}_x000D_
},_x000D_
methods:{_x000D_
onLazyInput(e){_x000D_
console.log(e.target.value)_x000D_
}_x000D_
}_x000D_
})
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>_x000D_
<script src="https://unpkg.com/lodash/lodash.min.js"></script><!-- dependency -->_x000D_
<script src="https://unpkg.com/vue-lazy-input@latest"></script> _x000D_
_x000D_
<div id="app">_x000D_
<input type="range" v-model="val" @input="onLazyInput" v-lazy-input /> {{val}}_x000D_
</div>
_x000D_
If you want the conversion to always succeed, probably the best way to convert the string would be to consider "1"
as true
and anything else as false
(as Kevin does). If you wanted the conversion to fail if anything other than "1"
or "0"
is returned, then the following would suffice (you could put it in a helper method):
if (returnValue == "1")
{
return true;
}
else if (returnValue == "0")
{
return false;
}
else
{
throw new FormatException("The string is not a recognized as a valid boolean value.");
}
All Elements
$('#tabla > tbody > tr').each(function() {
$(this).find("td:gt(0)").each(function(){
alert($(this).html());
});
});
With PictureBox1
.Visible = False
.Width = TextBox1.Width + 4
.Height = TextBox1.Height + 4
.Left = TextBox1.Left - 2
.Top = TextBox1.Top - 2
.SendToBack()
.Visible = True
End With
<script type="text/javascript">
document.write(document.referrer);
</script>
document.referrer
serves your purpose, but it doesn't work for Internet Explorer versions earlier than IE9.
It will work for other popular browsers, like Chrome, Mozilla, Opera, Safari etc.
You can change the passphrase for your private key by doing:
ssh-keygen -f ~/.ssh/id_rsa -p
i followed all the suggested steps, in particular the ones provided from ios_dev but my iPhone was not recognized from Xcode and i was not able to debug over WiFi. Right click on the left panel over my iDevice in "Devices and Simulators" window, then "Connect via IP Address...", inserted the iPhone IP and now it correctly works
This query is working fine.
SELECT name
,Ltrim(SubString(name, 1, Isnull(Nullif(CHARINDEX(' ', name), 0), 1000))) AS FirstName
,Ltrim(SUBSTRING(name, CharIndex(' ', name), CASE
WHEN (CHARINDEX(' ', name, CHARINDEX(' ', name) + 1) - CHARINDEX(' ', name)) <= 0
THEN 0
ELSE CHARINDEX(' ', name, CHARINDEX(' ', name) + 1) - CHARINDEX(' ', name)
END)) AS MiddleName
,Ltrim(SUBSTRING(name, Isnull(Nullif(CHARINDEX(' ', name, Charindex(' ', name) + 1), 0), CHARINDEX(' ', name)), CASE
WHEN Charindex(' ', name) = 0
THEN 0
ELSE LEN(name)
END)) AS LastName
FROM yourtableName
Visual Assist: you cannot live without it!
Your ComboBox is trying to bind to bind to GridItem[x].CompanyItems
, which doesn't exist.
Your RelativeBinding is close, however it needs to bind to DataContext.CompanyItems
because Window.CompanyItems does not exist
No:
http://www.w3.org/TR/css3-background/#the-box-shadow
You can verify this in Chrome and Firefox by checking the list of computed styles. Other properties that have shorthand methods (like border-radius
) have their variations defined in the spec.
As with most missing "long-hand" CSS properties, CSS variables can solve this problem:
#el {
--box-shadow-color: palegoldenrod;
box-shadow: 1px 2px 3px var(--box-shadow-color);
}
#el:hover {
--box-shadow-color: goldenrod;
}
I would add one more thing to Marc's answer: The memberOf attribute can't contain wildcards, so you can't say something like "memberof=CN=SPS*", and expect it to find all groups that start with "SPS".
Sadly, Java 8 did not introduce pairs or tuples. You can always use org.apache.commons.lang3.tuple of course (which personally I do use in combination with Java 8) or you can create your own wrappers. Or use Maps. Or stuff like that, as is explained in the accepted answer to that question you linked to.
UPDATE: JDK 14 is introducing records as a preview feature. These aren't tuples, but can be used to save many of the same problems. In your specific example from above, that could look something like this:
public class Jdk14Example {
record CountForIndex(int index, long count) {}
public static void main(String[] args) {
boolean [][] directed_acyclic_graph = new boolean[][]{
{false, true, false, true, false, true},
{false, false, false, true, false, true},
{false, false, false, true, false, true},
{false, false, false, false, false, true},
{false, false, false, false, false, true},
{false, false, false, false, false, false}
};
System.out.println(
IntStream.range(0, directed_acyclic_graph.length)
.parallel()
.mapToObj(i -> {
long count = IntStream.range(0, directed_acyclic_graph[i].length)
.filter(j -> directed_acyclic_graph[j][i])
.count();
return new CountForIndex(i, count);
}
)
.filter(n -> n.count == 0)
.collect(() -> new ArrayList<CountForIndex>(), (c, e) -> c.add(e), (c1, c2) -> c1.addAll(c2))
);
}
}
When compiled and run with JDK 14 (at the time of writing, this an early access build) using the --enable-preview
flag, you get the following result:
[CountForIndex[index=0, count=0], CountForIndex[index=2, count=0], CountForIndex[index=4, count=0]]
Yes, what you observed is indeed a guaranteed property -- keys()
, values()
and items()
return lists in congruent order if the dict is not altered. iterkeys()
&c also iterate in the same order as the corresponding lists.
for image write this
<input type=file accept="image/*">
For other, You can use the accept attribute on your form to suggest to the browser to restrict certain types. However, you'll want to re-validate in your server-side code to make sure. Never trust what the client sends you
If you simply want to reduce your button image:
yourButton.contentMode = UIViewContentModeScaleAspectFit;
yourButton.imageEdgeInsets = UIEdgeInsetsMake(10, 10, 10, 10);
In my case I had to set MaxHeight
and replace IsEnabled="False"
by IsReadOnly="True"
Press F4 at the project root and select the the root source pressing the source button. It resolved my problem!
for(; ;){
makeGoodCode();
}
Here my simplest solution.
Inspired by PHP
empty
function
function empty(n){_x000D_
return !(!!n ? typeof n === 'object' ? Array.isArray(n) ? !!n.length : !!Object.keys(n).length : true : false);_x000D_
}_x000D_
_x000D_
//with number_x000D_
console.log(empty(0)); //true_x000D_
console.log(empty(10)); //false_x000D_
_x000D_
//with object_x000D_
console.log(empty({})); //true_x000D_
console.log(empty({a:'a'})); //false_x000D_
_x000D_
//with array_x000D_
console.log(empty([])); //true_x000D_
console.log(empty([1,2])); //false_x000D_
_x000D_
//with string_x000D_
console.log(empty('')); //true_x000D_
console.log(empty('a')); //false
_x000D_
for 1D and 2D arrays you can use np.savetxt to print using a specific format string:
>>> import sys
>>> x = numpy.arange(20).reshape((4,5))
>>> numpy.savetxt(sys.stdout, x, '%5.2f')
0.00 1.00 2.00 3.00 4.00
5.00 6.00 7.00 8.00 9.00
10.00 11.00 12.00 13.00 14.00
15.00 16.00 17.00 18.00 19.00
Your options with numpy.set_printoptions or numpy.array2string in v1.3 are pretty clunky and limited (for example no way to suppress scientific notation for large numbers). It looks like this will change with future versions, with numpy.set_printoptions(formatter=..) and numpy.array2string(style=..).
set /a number=%random% %% [maximum]-[minimum]
example "
set /a number=%random% %% 100-50
will give a random number between 100 and 50. Be sure to only use one percentage sign as the operand if you are not using the line in a batch script!
<router-outlet [node]="..."></router-outlet>
is just invalid. The component added by the router is added as sibling to <router-outlet>
and does not replace it.
See also https://angular.io/guide/component-interaction#parent-and-children-communicate-via-a-service
@Injectable()
export class NodeService {
private node:Subject<Node> = new BehaviorSubject<Node>([]);
get node$(){
return this.node.asObservable().filter(node => !!node);
}
addNode(data:Node) {
this.node.next(data);
}
}
@Component({
selector : 'node-display',
providers: [NodeService],
template : `
<router-outlet></router-outlet>
`
})
export class NodeDisplayComponent implements OnInit {
constructor(private nodeService:NodeService) {}
node: Node;
ngOnInit(): void {
this.nodeService.getNode(path)
.subscribe(
node => {
this.nodeService.addNode(node);
},
err => {
console.log(err);
}
);
}
}
export class ChildDisplay implements OnInit{
constructor(nodeService:NodeService) {
nodeService.node$.subscribe(n => this.node = n);
}
}
Since you want to hide your column you can always hide the column in preRender event of the gridview . This helps you with reducing one operation for every rowdatabound event per row . You will need only one operation for prerender event .
protected void gvVoucherList_PreRender(object sender, EventArgs e)
{
try
{
int RoleID = Convert.ToInt32(Session["RoleID"]);
switch (RoleID)
{
case 6: gvVoucherList.Columns[11].Visible = false;
break;
case 1: gvVoucherList.Columns[10].Visible = false;
break;
}
if(hideActionColumn == "ActionSM")
{
gvVoucherList.Columns[10].Visible = false;
hideActionColumn = string.Empty;
}
}
catch (Exception Ex)
{
}
}
onkeyup, onpaste, onchange, oninput
seems to be failing when the browser performs autofill on the textboxes. To handle such a case include "autocomplete='off'
" in your textfield to prevent browser from autofilling the textbox,
Eg,
<input id="inputDatabaseName" autocomplete='off' onchange="check();"
onkeyup="this.onchange();" onpaste="this.onchange();" oninput="this.onchange();" />
<script>
function check(){
alert("Input box changed");
// Things to do when the textbox changes
}
</script>
For mysqli users, the code will look like this:
$mysqli = new mysqli($db_host, $db_user, $db_pass, $db_name);
$result = $mysqli->query("SELECT COUNT(*) AS Students_count FROM Students")->fetch_array();
var_dump($result['Students_count']);
or:
$mysqli = new mysqli($db_host, $db_user, $db_pass, $db_name);
$result = $mysqli->query("SELECT COUNT(*) FROM Students")->fetch_array();
var_dump($result[0]);
If you have experience write simple scripts by Perl\Python\etc, and convert MySQL to SQLite. Read data from Mysql and write it on SQLite.
First off, EC2 and Elastic Compute Cloud are the same thing.
Next, AWS encompasses the range of Web Services that includes EC2 and Elastic Beanstalk. It also includes many others such as S3, RDS, DynamoDB, and all the others.
EC2 is Amazon's service that allows you to create a server (AWS calls these instances) in the AWS cloud. You pay by the hour and only what you use. You can do whatever you want with this instance as well as launch n
number of instances.
Elastic Beanstalk is one layer of abstraction away from the EC2 layer. Elastic Beanstalk will setup an "environment" for you that can contain a number of EC2 instances, an optional database, as well as a few other AWS components such as a Elastic Load Balancer, Auto-Scaling Group, Security Group. Then Elastic Beanstalk will manage these items for you whenever you want to update your software running in AWS. Elastic Beanstalk doesn't add any cost on top of these resources that it creates for you. If you have 10 hours of EC2 usage, then all you pay is 10 compute hours.
For running Wordpress, it is whatever you are most comfortable with. You could run it straight on a single EC2 instance, you could use a solution from the AWS Marketplace, or you could use Elastic Beanstalk.
In the case that you want to reduce system operations and just focus on the website, then Elastic Beanstalk would be the best choice for that. Elastic Beanstalk supports a PHP stack (as well as others). You can keep your site in version control and easily deploy to your environment whenever you make changes. It will also setup an Autoscaling group which can spawn up more EC2 instances if traffic is growing.
Here's the first result off of Google when searching for "elastic beanstalk wordpress": https://www.otreva.com/blog/deploying-wordpress-amazon-web-services-aws-ec2-rds-via-elasticbeanstalk/
If flutter SDK is already downloaded in the system, then just add path using the below command. This tested on MAC OS
export PATH='sdkpath':$PATH
Eg:
export PATH='/Users/apple/dev/flutter/sdk/flutter/bin':$PATH
You can LEFT JOIN the two tables. If there is no corresponding row in the second table, the values will be NULL.
SELECT id FROM partmaster LEFT JOIN product_details ON (...) WHERE product_details.part_num IS NULL
Here is another way that I came up with: Let's say you want to get a float between 5.5 and 7, with 3 decimals.
float myFloat;
int myInt;
System.Random rnd = new System.Random();
void GenerateFloat()
{
myInt = rnd.Next(1, 2000);
myFloat = (myInt / 1000) + 5.5f;
}
That way you will always get a bigger number than 5.5 and a smaller number than 7.
One problem might be: when using external ipl and defining HAVE_IPL in your project, the ctor
_IplImage::_IplImage(const cv::Mat& m)
{
CV_Assert( m.dims <= 2 );
cvInitImageHeader(this, m.size(), cvIplDepth(m.flags), m.channels());
cvSetData(this, m.data, (int)m.step[0]);
}
found in ../OpenCV/modules/core/src/matrix.cpp is not used/instanciated and conversion fails.
You may reimplement it in a way similar to :
IplImage& FromMat(IplImage& img, const cv::Mat& m)
{
CV_Assert(m.dims <= 2);
cvInitImageHeader(&img, m.size(), cvIplDepth(m.flags), m.channels());
cvSetData(&img, m.data, (int)m.step[0]);
return img;
}
IplImage img;
FromMat(img,myMat);
Using ==
to compare two enum values works, because there is only one object for each enum constant.
On a side note, there is actually no need to use ==
to write null-safe code, if you write your equals()
like this:
public useEnums(final SomeEnum a) {
if (SomeEnum.SOME_ENUM_VALUE.equals(a)) {
…
}
…
}
This is a best practice known as Compare Constants From The Left that you definitely should follow.
You are using |
(pipe) to direct the output of a command into another command. What you are looking for is &&
operator to execute the next command only if the previous one succeeded:
cp /templates/apple /templates/used && cp /templates/apple /templates/inuse && rm /templates/apple
Or
cp /templates/apple /templates/used && mv /templates/apple /templates/inuse
To summarize (non-exhaustively) bash's command operators/separators:
|
pipes (pipelines) the standard output (stdout
) of one command into the standard input of another one. Note that stderr
still goes into its default destination, whatever that happen to be.|&
pipes both stdout
and stderr
of one command into the standard input of another one. Very useful, available in bash version 4 and above.&&
executes the right-hand command of &&
only if the previous one succeeded.||
executes the right-hand command of ||
only it the previous one failed.;
executes the right-hand command of ;
always regardless whether the previous command succeeded or failed. Unless set -e
was previously invoked, which causes bash
to fail on an error.You can use the approach @Ken Chan mentions, and add a single line of code after that if you want a specific list of Objects, example:
session.createCriteria(SomeTable.class)
.add(Restrictions.ge("someColumn", xxxxx))
.setProjection(Projections.projectionList()
.add(Projections.groupProperty("someColumn"))
.add(Projections.max("someColumn"))
.add(Projections.min("someColumn"))
.add(Projections.count("someColumn"))
).setResultTransformer(Transformers.aliasToBean(SomeClazz.class));
List<SomeClazz> objectList = (List<SomeClazz>) criteria.list();
To avoid any ambiguity, use the utilities methods from SwingUtilities :
SwingUtilities.isLeftMouseButton(MouseEvent anEvent)
SwingUtilities.isRightMouseButton(MouseEvent anEvent)
SwingUtilities.isMiddleMouseButton(MouseEvent anEvent)
Static method example
class StaticDemo
{
public static void copyArg(String str1, String str2)
{
str2 = str1;
System.out.println("First String arg is: "+str1);
System.out.println("Second String arg is: "+str2);
}
public static void main(String agrs[])
{
//StaticDemo.copyArg("XYZ", "ABC");
copyArg("XYZ", "ABC");
}
}
Output:
First String arg is: XYZ
Second String arg is: XYZ
As you can see in the above example that for calling static method, I didn’t even use an object. It can be directly called in a program or by using class name.
Non-static method example
class Test
{
public void display()
{
System.out.println("I'm non-static method");
}
public static void main(String agrs[])
{
Test obj=new Test();
obj.display();
}
}
Output:
I'm non-static method
A non-static method is always be called by using the object of class as shown in the above example.
Key Points:
How to call static methods: direct or using class name:
StaticDemo.copyArg(s1, s2);
or
copyArg(s1, s2);
How to call a non-static method: using object of the class:
Test obj = new Test();
An overlay is, simply put, a div
that stays fixed on the screen (no matter if you scroll) and has some sort of opacity.
This will be your CSS for cross browser opacity of 0.5:
#overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: #000;
filter:alpha(opacity=50);
-moz-opacity:0.5;
-khtml-opacity: 0.5;
opacity: 0.5;
z-index: 10000;
}
This will be your jQuery code (no UI needed). You're just going to create a new element with the ID #overlay. Creating and destroying the DIV should be all you need.
var overlay = jQuery('<div id="overlay"> </div>');
overlay.appendTo(document.body)
For performance reasons you might wanna have the DIV hidden and setting the display to block and none as you need it or not.
Hope it helps!
Edit: As @Vitaly so well put it, be sure to check your DocType. Read more on the comments on his findings..
Try -
$("#column_select").change(function () {
$("#layout_select").children('option').hide();
$("#layout_select").children("option[value^=" + $(this).val() + "]").show()
})
If you were going to use this solution you'd need to hide all of the elements apart from the one with the 'none' value in your document.ready function -
$(document).ready(function() {
$("#layout_select").children('option:gt(0)').hide();
$("#column_select").change(function() {
$("#layout_select").children('option').hide();
$("#layout_select").children("option[value^=" + $(this).val() + "]").show()
})
})
Demo - http://jsfiddle.net/Mxkfr/2
EDIT
I might have got a bit carried away with this, but here's a further example that uses a cache of the original select list options to ensure that the 'layout_select' list is completely reset/cleared (including the 'none' option) after the 'column_select' list is changed -
$(document).ready(function() {
var optarray = $("#layout_select").children('option').map(function() {
return {
"value": this.value,
"option": "<option value='" + this.value + "'>" + this.text + "</option>"
}
})
$("#column_select").change(function() {
$("#layout_select").children('option').remove();
var addoptarr = [];
for (i = 0; i < optarray.length; i++) {
if (optarray[i].value.indexOf($(this).val()) > -1) {
addoptarr.push(optarray[i].option);
}
}
$("#layout_select").html(addoptarr.join(''))
}).change();
})
Demo - http://jsfiddle.net/N7Xpb/1/
and of course the following:
var count = $("#myList").children().length;
can be condensed down to: (by removing the 'var' which is not necessary to set a variable)
count = $("#myList").children().length;
however this is cleaner:
count = $("#mylist li").size();
A FragmentActivity
is a subclass of Activity
that was built for the Android Support Package.
The FragmentActivity
class adds a couple new methods to ensure compatibility with older versions of Android, but other than that, there really isn't much of a difference between the two. Just make sure you change all calls to getLoaderManager()
and getFragmentManager()
to getSupportLoaderManager()
and getSupportFragmentManager()
respectively.
Simply use the base transpose function t
, wrapped with as.data.frame
:
final_df <- as.data.frame(t(starting_df))
final_df
A B C D
a 1 2 3 4
b 0.02 0.04 0.06 0.08
c Aaaa Bbbb Cccc Dddd
Above updated. As docendo discimus pointed out, t
returns a matrix. As Mark suggested wrapping it with as.data.frame
gets back a data frame instead of a matrix. Thanks!
you don't need to declare Map groovy internally recognizes it
def personDetails = [firstName:'John', lastName:'Doe', fullName:'John Doe']
// print the values..
println "First Name: ${personDetails.firstName}"
println "Last Name: ${personDetails.lastName}"
You also need to change the resizable property to true
dataGridView1.RowTemplate.Resizable = DataGridViewTriState.True;
dataGridView1.RowTemplate.Height = 50;
Warning
If you run PowerShell from a cmd.exe window created by Powershell, the 2nd instance no longer waits for jobs to complete.
cmd> PowerShell
PS> Start-Process cmd.exe -Wait
Now from the new cmd window, run PowerShell again and within it start a 2nd cmd window: cmd2> PowerShell
PS> Start-Process cmd.exe -Wait
PS>
The 2nd instance of PowerShell no longer honors the -Wait request and ALL background process/jobs return 'Completed' status even thou they are still running !
I discovered this when my C# Explorer program is used to open a cmd.exe window and PS is run from that window, it also ignores the -Wait request. It appears that any PowerShell which is a 'win32 job' of cmd.exe fails to honor the wait request.
I ran into this with PowerShell version 3.0 on windows 7/x64
Using Pygrok, you can define abstracted extensions to the Regular Expression syntax.
The custom patterns can be included in your regex in the format %{PATTERN_NAME}
.
You can also create a label for that pattern, by separating with a colon: %s{PATTERN_NAME:matched_string}
. If the pattern matches, the value will be returned as part of the resulting dictionary (e.g. result.get('matched_string')
)
For example:
from pygrok import Grok
input_string = 'monkey 2010-07-10 love banana'
date_pattern = '%{YEAR:year}-%{MONTHNUM:month}-%{MONTHDAY:day}'
grok = Grok(date_pattern)
print(grok.match(input_string))
The resulting value will be a dictionary:
{'month': '07', 'day': '10', 'year': '2010'}
If the date_pattern does not exist in the input_string, the return value will be None
. By contrast, if your pattern does not have any labels, it will return an empty dictionary {}
References:
Extensions without enough permission on chrome can cause these warnings, for example for React developer tools, check if the following procedure solves your problem:
Or
Then choose "this can read and write site data". You should see 3 options in the list, pick one that is strict enough based on how much you trust the extension and also satisfies the extensions's needs.
1-make 1 shape for Button right click on drawable nd new drawable resource file . change Root element to shape and make your shape.
2-now make 1 copy from your shape and change name and change solid color. enter image description here
3-right click on drawable and new drawable resource file just set root element to selector.
go to file and set "state_pressed"
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"android:drawable="@drawable/YourShape1"/>
<item android:state_pressed="false" android:drawable="@drawable/YourShape2"/>
</selector>
4-the end go to xml layout and set your Button background "your selector"
(sorry for my english weak)
Update PHP 7.4
Curly brace access syntax is deprecated since PHP 7.4
Update 2019
Moving on to the best practices of OOPS, @MrTrick's answer must be marked as correct, although my answer provides a hacked solution its not the best method.
Simply iterate its using {}
Example:
$videos{0}->id
This way your object is not destroyed and you can easily iterate through object.
For PHP 5.6 and below use this
$videos{0}['id']
Both array() and the stdClass objects can be accessed using the
current()
key()
next()
prev()
reset()
end()
functions.
So, if your object looks like
object(stdClass)#19 (3) {
[0]=>
object(stdClass)#20 (22) {
["id"]=>
string(1) "123"
etc...
Then you can just do;
$id = reset($obj)->id; //Gets the 'id' attr of the first entry in the object
If you need the key for some reason, you can do;
reset($obj); //Ensure that we're at the first element
$key = key($obj);
Hope that works for you. :-) No errors, even in super-strict mode, on PHP 5.4
2022 Update:
After PHP 7.4, using current()
, end()
, etc functions on objects is deprecated.
In newer versions of PHP, use the ArrayIterator class:
$objIterator = new ArrayIterator($obj);
$id = $objIterator->current()->id; // Gets the 'id' attr of the first entry in the object
$key = $objIterator->key(); // and gets the key
You need to change public void klik(PaintEventArgs pea, EventArgs e)
to public void klik(object sender, System.EventArgs e)
because there is no Click
event handler with parameters PaintEventArgs pea, EventArgs e
.
I faced the same problem and now found a way to solve it. First you have to delete the database of the user that you wish to drop. Then the user can be easily deleted.
I created an user named "msf" and struggled a while to delete the user and recreate it. I followed the below steps and Got succeeded.
1) Drop the database
dropdb msf
2) drop the user
dropuser msf
Now I got the user successfully dropped.
Trim in array_map change type if you have NULL in value.
Better way to do it:
$result = array_map(function($v){
return is_string($v)?trim($v):$v;
}, $array);
Yes you can use simply
$input_data = $_POST;
or extract() may be useful for you.
All I needed was this :
SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss");
sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
SimpleDateFormat sdfLocal = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss");
try {
String d = sdf.format(new Date());
System.out.println(d);
System.out.println(sdfLocal.parse(d));
} catch (Exception e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
Output : slightly dubious, but I want only the date to be consistent
2013.08.08 11:01:08
Thu Aug 08 11:01:08 GMT+08:00 2013
The syntax of TINYINT
data type is TINYINT(M)
,
where M
indicates the maximum display width (used only if your MySQL client supports it).
The (m) indicates the column width in SELECT statements; however, it doesn't control the accepted range of numbers for that field.
A TINYINT is an 8-bit integer value, a BIT field can store between 1 bit, BIT(1), and 64 >bits, BIT(64). For a boolean values, BIT(1) is pretty common.
For Laravel 5.x we can redirect with just
return redirect()->to($url);
I think registering for the UIApplicationWillEnterForegroundNotification is risky as you may end up with more than one controller reacting to that notification. Nothing garanties that these controllers are still visible when the notification is received.
Here is what I do: I force call viewDidAppear on the active controller directly from the App's delegate didBecomeActive method:
Add the code below to - (void)applicationDidBecomeActive:(UIApplication *)application
UIViewController *activeController = window.rootViewController;
if ([activeController isKindOfClass:[UINavigationController class]]) {
activeController = [(UINavigationController*)window.rootViewController topViewController];
}
[activeController viewDidAppear:NO];
<div>
looks nice, but a bit complicated in setting all these display: block, float: left
... Maybe because the general idea behind <div>
is a block of a paragraph size or more.
I have found the following nice way for spacing:
<button>Button 1></button>
<button style="margin-left: 4em">Button 2</button>
As dd copies data with the conv=noerror,sync option, any errors it encounters will result in the remainder of the block being replaced with zero-bytes. Larger block sizes will copy more quickly, but each time an error is encountered the remainder of the block is ignored.
You need to look into Ajax; Start here this is the best way to stay on the current page and be able to send inputs to php.
<!DOCTYPE html>
<html>
<head>
<script>
function showHint(str)
{
var xmlhttp;
if (str.length==0)
{
document.getElementById("txtHint").innerHTML="";
return;
}
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","gethint.php?q="+str,true);
xmlhttp.send();
}
</script>
</head>
<body>
<h3>Start typing a name in the input field below:</h3>
<form action="">
First name: <input type="text" id="txt1" onkeyup="showHint(this.value)" />
</form>
<p>Suggestions: <span id="txtHint"></span></p>
</body>
</html>
This gets the users input on the textbox and opens the webpage gethint.php?q=ja from here the php script can do anything with $_GET['q'] and echo back to the page James, Jason....etc
So, your input is 'dan|warrior|54' and you want "warrior". You do this like so:
>>> dan = 'dan|warrior|54'
>>> dan.split('|')[1]
"warrior"
As of iOS 9 and OS X 10.11, you can use the new GameplayKit classes to generate random numbers in a variety of ways.
You have four source types to choose from: a general random source (unnamed, down to the system to choose what it does), linear congruential, ARC4 and Mersenne Twister. These can generate random ints, floats and bools.
At the simplest level, you can generate a random number from the system's built-in random source like this:
NSInteger rand = [[GKRandomSource sharedRandom] nextInt];
That generates a number between -2,147,483,648 and 2,147,483,647. If you want a number between 0 and an upper bound (exclusive) you'd use this:
NSInteger rand6 = [[GKRandomSource sharedRandom] nextIntWithUpperBound:6];
GameplayKit has some convenience constructors built in to work with dice. For example, you can roll a six-sided die like this:
GKRandomDistribution *d6 = [GKRandomDistribution d6];
[d6 nextInt];
Plus you can shape the random distribution by using things like GKShuffledDistribution
.
You didn't specify how the order is determined, but this will give you a rank value in MySQL:
SELECT t.*,
@rownum := @rownum +1 AS rank
FROM TBL_FOO t
JOIN (SELECT @rownum := 0) r
WHERE t.name = 'sarmen'
Then you can pick out what rows you want, based on the rank value.
$(JSON.parse(response)).map(function () {
return $('<option>').val(this.value).text(this.label);
}).appendTo('#selectorId');
Just remove the "px" in the style.height assignation, like:
<button type="button" onClick = "document.getElementById('chartdiv').style.height = 200px"> </button>
Should be
<button type="button" onClick = "document.getElementById('chartdiv').style.height = 200">Click Me!</button>
A little more elegant way of doing the same adding on to the above comment ..
<asp:GridView ID="grdParent" runat="server" BackColor="White" BorderColor="#DEDFDE"
AutoGenerateColumns="false"
OnRowDeleting="deleteRow"
GridLines="Vertical">
<asp:BoundField DataField="IdTemplate" HeaderText="IdTemplate" />
<asp:BoundField DataField="EntityId" HeaderText="EntityId" />
<asp:TemplateField ShowHeader="false">
<ItemTemplate>
<asp:LinkButton ID="lnkCustomize" Text="Delete" CommandName="Delete" CommandArgument='<%#Eval("IdTemplate") + ";" +Eval("EntityId")%>' runat="server">
</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</asp:GridView>
And on the server side:
protected void deleteRow(object sender, GridViewDeleteEventArgs e)
{
string IdTemplate= e.Values["IdTemplate"].ToString();
string EntityId = e.Values["EntityId"].ToString();
// Do stuff..
}
ID is suitable for the elements which appears only once Like Logo sidebar container
And Class is suitable for the elements which has same UI but they can be appear more than once. Like
.feed in the #feeds Container
"\n".charCodeAt(0);
Use this function from stringi
package
> x <- 'hello stackoverflow'
> stri_sub(x,2)
[1] "ello stackoverflow"
Besides just using include()
or include_once()
to include the header and footer, one thing I have found useful is being able to have a custom page title or custom head tags to be included for each page, yet still have the header in a partial include. I usually accomplish this as follows:
In the site pages:
<?php
$PageTitle="New Page Title";
function customPageHeader(){?>
<!--Arbitrary HTML Tags-->
<?php }
include_once('header.php');
//body contents go here
include_once('footer.php');
?>
And, in the header.php file:
<!doctype html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title><?= isset($PageTitle) ? $PageTitle : "Default Title"?></title>
<!-- Additional tags here -->
<?php if (function_exists('customPageHeader')){
customPageHeader();
}?>
</head>
<body>
Maybe a bit beyond the scope of your original question, but it is useful to allow a bit more flexibility with the include.
use panTo(x,y).This will help u
By default, Tomcat container doesn’t contain any jstl library. To fix it, declares jstl.jar in your Maven pom.xml file if you are working in Maven project or add it to your application's classpath
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
Simply put these codes at top of your PHP/index file:
error_reporting(E_ALL); // Error/Exception engine, always use E_ALL
ini_set('ignore_repeated_errors', TRUE); // always use TRUE
ini_set('display_errors', FALSE); // Error/Exception display, use FALSE only in production environment or real server. Use TRUE in development environment
ini_set('log_errors', TRUE); // Error/Exception file logging engine.
ini_set('error_log', 'your/path/to/errors.log'); // Logging file path
Most of answers talking about scenario catch-log-rethrow.
Instead of writing it in your code consider to use AOP, in particular Postsharp.Diagnostic.Toolkit with OnExceptionOptions IncludeParameterValue and IncludeThisArgument
Simplest solution:
$date = new DateTime('+1 day');
echo $date->format('Y-m-d H:i:s');
Seconds with 2 decimal spaces:
Dim startTime As Single 'start timer
MsgBox ("run time: " & Format((Timer - startTime) / 1000000, "#,##0.00") & " seconds") 'end timer
Milliseconds:
Dim startTime As Single 'start timer
MsgBox ("run time: " & Format((Timer - startTime), "#,##0.00") & " milliseconds") 'end timer
Milliseconds with comma seperator:
Dim startTime As Single 'start timer
MsgBox ("run time: " & Format((Timer - startTime) * 1000, "#,##0.00") & " milliseconds") 'end timer
Just leaving this here for anyone that was looking for a simple timer formatted with seconds to 2 decimal spaces like I was. These are short and sweet little timers I like to use. They only take up one line of code at the beginning of the sub or function and one line of code again at the end. These aren't meant to be crazy accurate, I generally don't care about anything less then 1/100th of a second personally, but the milliseconds timer will give you the most accurate run time of these 3. I've also read you can get the incorrect read out if it happens to run while crossing over midnight, a rare instance but just FYI.
SELECT * FROM
(SELECT [UserID] FROM [User]) a
LEFT JOIN (SELECT [TailUser], [Weight] FROM [Edge] WHERE [HeadUser] = 5043) b
ON a.UserId = b.TailUser
I can offer you a jquery solution
add this in your <head></head>
tag
<script type="text/javascript" src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
add this after </ul>
<script> $('ul li:first').remove(); </script>
1. Set up your routes to accept data
{
path: 'some-route',
loadChildren:
() => import(
'./some-component/some-component.module'
).then(
m => m.SomeComponentModule
),
data: {
key: 'value',
...
},
}
2. Navigate to route:
From HTML:
<a [routerLink]=['/some-component', { key: 'value', ... }> ... </a>
Or from Typescript:
import {Router} from '@angular/router';
...
this.router.navigate(
[
'/some-component',
{
key: 'value',
...
}
]
);
3. Get data from route
import {ActivatedRoute} from '@angular/router';
...
this.value = this.route.snapshot.params['key'];
You can use the DataColumnCollection of Your datatable to check if the column is in the collection.
Something like:
DataColumnCollection Columns = dtItems.Columns;
if (Columns.Contains(ColNameToCheck))
{
row["ColNameToCheck"] = "Checked";
}
I'd probably use all.equal
and which
to get the information you want. It's not recommended to use all.equal
in an if...else
block for some reason, so we wrap it in isTRUE()
. See ?all.equal
for more:
foo <- function(A,B){
if (!isTRUE(all.equal(A,B))){
mismatches <- paste(which(A != B), collapse = ",")
stop("error the A and B does not match at the following columns: ", mismatches )
} else {
message("Yahtzee!")
}
}
And in use:
> foo(A,A)
Yahtzee!
> foo(A,B)
Yahtzee!
> foo(A,C)
Error in foo(A, C) :
error the A and B does not match at the following columns: 2,4
This is my solution to fibonacci problem with recursion.
#include <iostream>
using namespace std;
int fibonacci(int n){
if(n<=0)
return 0;
else if(n==1 || n==2)
return 1;
else
return (fibonacci(n-1)+fibonacci(n-2));
}
int main() {
cout << fibonacci(8);
return 0;
}
To center only the specific child :
.parent {_x000D_
height: 100px;_x000D_
background-color: gray;_x000D_
position: relative;_x000D_
}_x000D_
_x000D_
.child {_x000D_
background-color: white;_x000D_
position: absolute;_x000D_
top: 0;_x000D_
bottom: 0;_x000D_
left: 0;_x000D_
right: 0;_x000D_
width: 20px;_x000D_
height:20px;_x000D_
margin: auto;_x000D_
_x000D_
}
_x000D_
<div class="parent">_x000D_
<span class="child">hi</span>_x000D_
</div>
_x000D_
OR, you can use flex too, but that would center all children
.parent {_x000D_
height: 100px;_x000D_
background-color: gray;_x000D_
display: flex;_x000D_
justify-content: center;_x000D_
align-items: center;_x000D_
}_x000D_
_x000D_
.child {_x000D_
background-color: white; _x000D_
}
_x000D_
<div class="parent">_x000D_
<span class="child">hi</span>_x000D_
</div>
_x000D_
I know this post is realy old but now that some time and ant versions passed there is a way to do this with basic ant features and i thought i should share it.
It's done via a recursive macrodef that calls nested tasks (even other macros may be called). The only convention is to use a fixed variable name (element here).
<project name="iteration-test" default="execute" xmlns="antlib:org.apache.tools.ant" xmlns:if="ant:if" xmlns:unless="ant:unless">
<macrodef name="iterate">
<attribute name="list" />
<element name="call" implicit="yes" />
<sequential>
<local name="element" />
<local name="tail" />
<local name="hasMoreElements" />
<!-- unless to not get a error on empty lists -->
<loadresource property="element" unless:blank="@{list}" >
<concat>@{list}</concat>
<filterchain>
<replaceregex pattern="([^;]*).*" replace="\1" />
</filterchain>
</loadresource>
<!-- call the tasks that handle the element -->
<call />
<!-- recursion -->
<condition property="hasMoreElements">
<contains string="@{list}" substring=";" />
</condition>
<loadresource property="tail" if:true="${hasMoreElements}">
<concat>@{list}</concat>
<filterchain>
<replaceregex pattern="[^;]*;(.*)" replace="\1" />
</filterchain>
</loadresource>
<iterate list="${tail}" if:true="${hasMoreElements}">
<call />
</iterate>
</sequential>
</macrodef>
<target name="execute">
<fileset id="artifacts.fs" dir="build/lib">
<include name="*.jar" />
<include name="*.war" />
</fileset>
<pathconvert refid="artifacts.fs" property="artifacts.str" />
<echo message="$${artifacts.str}: ${artifacts.str}" />
<!-- unless is required for empty lists to not call the enclosed tasks -->
<iterate list="${artifacts.str}" unless:blank="${artifacts.str}">
<echo message="I see:" />
<echo message="${element}" />
</iterate>
<!-- local variable is now empty -->
<echo message="${element}" />
</target>
</project>
The key features needed where:
I didnt manage to make the delimiter variabel, but this may not be a major downside.
Did you try format?
@font-face {
font-family: 'The name of the Font Family Here';
src: URL('font.ttf') format('truetype');
}
Read this article: http://css-tricks.com/snippets/css/using-font-face/
Also, might depend on browser as well.
If you have sudo
access...
sudo apt-get install wkhtmltopdf
# or
sudo apt install wkhtmltopdf
Look at the other answers.
Primarily what that means is that there are too many concurrent requests and further that they exceed the default 1000 queued requests. That is there are 1000 or more queued requests to your website.
This could happen (assuming there are no faults in your app) if there are long running tasks and as a result the Request queue is backed up.
Depending on how the application pool has been set up you may see this kind of thing. Typically, the app pool's Process Model has an item called Maximum Worker Processes. By default this is 1. If you set it to more than 1 (typically up to a max of the number of cores on the hardware) you may not see this happen.
Just to note that unless the site is extremely busy you should not see this. If you do, it's really pointing to long running tasks
tl;dr
Add the line:
export JAVA_HOME='/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home'
to the file
~/.bash_profile
(replace jdk1.8.0_144.jdk with your downloaded version)
then source ~/.bash_profile
--- Substituting RLC in 8051 C for speed --- Rotate left carry
Here is an example using RLC to update a serial 8 bit DAC msb first:
(r=DACVAL, P1.4= SDO, P1.5= SCLK)
MOV A, r
?1:
MOV B, #8
RLC A
MOV P1.4, C
CLR P1.5
SETB P1.5
DJNZ B, ?1
Here is the code in 8051 C at its fastest:
sbit ACC_7 = ACC ^ 7 ; //define this at the top to access bit 7 of ACC
ACC = r;
B = 8;
do {
P1_4 = ACC_7; // this assembles into mov c, acc.7 mov P1.4, c
ACC <<= 1;
P1_5 = 0;
P1_5 = 1;
B -- ;
} while ( B!=0 );
The keil compiler will use DJNZ when a loop is written this way.
I am cheating here by using registers ACC and B in c code.
If you cannot cheat then substitute with:
P1_4 = ( r & 128 ) ? 1 : 0 ;
r <<= 1;
This only takes a few extra instructions.
Also, changing B for a local var char n is the same.
Keil does rotate ACC left by ADD A, ACC which is the same as multiply 2.
It only takes one extra opcode i think.
Keeping code entirely in C keeps things simpler sometimes.
In PHPStorm, it's a bit easier: you can just search for NPM in settings or:
File > Settings > Language & Frameworks > Node.js and NPM
Then click the enable button (apparently in new versions, it is called "Coding assistance for Node").
You can change from info.plist having attribute "Bundle Name" .
def attributeSelection():
balance = 25
print("Your SP balance is currently 25.")
strength = input("How much SP do you want to put into strength?")
balanceAfterStrength = balance - int(strength)
if balanceAfterStrength == 0:
print("Your SP balance is now 0.")
attributeConfirmation()
elif strength < 0:
print("That is an invalid input. Restarting attribute selection. Keep an eye on your balance this time!")
attributeSelection()
elif strength > balance:
print("That is an invalid input. Restarting attribute selection. Keep an eye on your balance this time!")
attributeSelection()
elif balanceAfterStrength > 0 and balanceAfterStrength < 26:
print("Ok. You're balance is now at " + str(balanceAfterStrength) + " skill points.")
else:
print("That is an invalid input. Restarting attribute selection.")
attributeSelection()
I added this helper method to handle my POST requests that return an object I care about.
For REST purists, I know, POSTs should not return anything besides a status. However, I had a large collection of ids that was too big for a query string parameter.
Helper Method:
public TResponse Post<TResponse>(string relativeUri, object postBody) where TResponse : new()
{
//Note: Ideally the RestClient isn't created for each request.
var restClient = new RestClient("http://localhost:999");
var restRequest = new RestRequest(relativeUri, Method.POST)
{
RequestFormat = DataFormat.Json
};
restRequest.AddBody(postBody);
var result = restClient.Post<TResponse>(restRequest);
if (!result.IsSuccessful)
{
throw new HttpException($"Item not found: {result.ErrorMessage}");
}
return result.Data;
}
Usage:
public List<WhateverReturnType> GetFromApi()
{
var idsForLookup = new List<int> {1, 2, 3, 4, 5};
var relativeUri = "/api/idLookup";
var restResponse = Post<List<WhateverReturnType>>(relativeUri, idsForLookup);
return restResponse;
}
for .NET Core console apps you can do this 2 ways - from the launchsettings.json or the properties menu.
Launchsettings.json
or right click the project > properties > debug tab on left
see "Application Arguments:"
tl;dr: baz() { this.foo(); this.bar() }
In ES2015 this construct:
var obj = {
foo() { console.log('foo') }
}
is equal to this ES5 code:
var obj = {
foo : function foo() { console.log('foo') }
}
exports.default = {}
is like creating an object, your default export translates to ES5 code like this:
exports['default'] = {
foo: function foo() {
console.log('foo');
},
bar: function bar() {
console.log('bar');
},
baz: function baz() {
foo();bar();
}
};
now it's kind of obvious (I hope) that baz
tries to call foo
and bar
defined somewhere in the outer scope, which are undefined. But this.foo
and this.bar
will resolve to the keys defined in exports['default']
object. So the default export referencing its own methods shold look like this:
export default {
foo() { console.log('foo') },
bar() { console.log('bar') },
baz() { this.foo(); this.bar() }
}
This is even simpler, and perhaps hacky - as I can see a lot of GDI muscle on this thread, and is obviously only a good fit for certain scenarios. YMMV
In my scenario, I use what I'll refer to as a "Parent" UserControl - and during the Load
event, I simply remove the control-to-be-manipulated from the Parent's .Controls
collection, and the Parent's OnPaint
takes care of completely painting the child control in whatever special way.. fully taking the child's paint capabilities offline.
Now, I hand off my child paint routine to an extension method based off this concept from Mike Gold for printing windows forms.
Here I'm needing a sub-set of labels to render perpendicular to the layout:
Then, I exempt the child control from being painted, with this code in the ParentUserControl.Load
event handler:
Private Sub ParentUserControl_Load(sender As Object, e As EventArgs) Handles MyBase.Load
SetStyle(ControlStyles.UserPaint, True)
SetStyle(ControlStyles.AllPaintingInWmPaint, True)
'exempt this control from standard painting:
Me.Controls.Remove(Me.HostedControlToBeRotated)
End Sub
Then, in the same ParentUserControl, we paint the control-to-be-manipulated from the ground up:
Protected Overrides Sub OnPaint(e As PaintEventArgs)
'here, we will custom paint the HostedControlToBeRotated instance...
'twist rendering mode 90 counter clockwise, and shift rendering over to right-most end
e.Graphics.SmoothingMode = Drawing2D.SmoothingMode.AntiAlias
e.Graphics.TranslateTransform(Me.Width - Me.HostedControlToBeRotated.Height, Me.Height)
e.Graphics.RotateTransform(-90)
MyCompany.Forms.CustomGDI.DrawControlAndChildren(Me.HostedControlToBeRotated, e.Graphics)
e.Graphics.ResetTransform()
e.Graphics.Dispose()
GC.Collect()
End Sub
Once you host the ParentUserControl somewhere, e.g. a Windows Form - I'm finding that my Visual Studio 2015 renders the form correctly at Design Time as well as runtime:
Now, since my particular manipulation rotates the child control 90 degrees, I'm sure all the hot spots and interactivity has been destroyed in that region - but, the problem I was solving was all for a package label that needed to preview and print, which worked out fine for me.
If there are ways to reintroduce the hot spots and control-ness to my purposely orphaned control - I'd love to learn about that someday (not for this scenario, of course, but.. just to learn). Of course, WPF supports such craziness OOTB.. but.. hey.. WinForms is so much fun still, amiright?
Once gdb
starts, you can run the program using "r args".
So if you are running your code by:
$ executablefile arg1 arg2 arg3
Debug it on gdb
by:
$ gdb executablefile
(gdb) r arg1 arg2 arg3
I have found out that in recent versions of IntelliJ IDEA requires Java 1.8 but is not configured by default.
We can change the path or configure from Project Settings
> Project
> Project SDK
here we can edit or add the JDK´s path.
(in my case the path is located in C:\Program Files\Java\jdk1.8.0_102
)
You can do this replacing position:absolute;
by position:fixed;
.
The first answer will not pass through all the points. This graph will exactly pass through all the points and will be a perfect curve with the points as [{x:,y:}] n such points.
var points = [{x:1,y:1},{x:2,y:3},{x:3,y:4},{x:4,y:2},{x:5,y:6}] //took 5 example points
ctx.moveTo((points[0].x), points[0].y);
for(var i = 0; i < points.length-1; i ++)
{
var x_mid = (points[i].x + points[i+1].x) / 2;
var y_mid = (points[i].y + points[i+1].y) / 2;
var cp_x1 = (x_mid + points[i].x) / 2;
var cp_x2 = (x_mid + points[i+1].x) / 2;
ctx.quadraticCurveTo(cp_x1,points[i].y ,x_mid, y_mid);
ctx.quadraticCurveTo(cp_x2,points[i+1].y ,points[i+1].x,points[i+1].y);
}
Not an expert on encoding, but after reading these...
... it seems fairly clear that the $OutputEncoding variable only affects data piped to native applications.
If sending to a file from withing PowerShell, the encoding can be controlled by the -encoding
parameter on the out-file
cmdlet e.g.
write-output "hello" | out-file "enctest.txt" -encoding utf8
Nothing else you can do on the PowerShell front then, but the following post may well help you:.
NullPointerException
. That is a bad practice. It is better to ensure that the value is not null.Another option is to use the getBoundingClientRect function. Please note that getBoundingClientRect will return an empty rect if the element's display is 'none'.
var elem = document.getElementById("myDiv");
if(elem) {
var rect = elem.getBoundingClientRect();
console.log(rect.width);
}
Just /
refers to the root of your website from the public html folder. DOCUMENT_ROOT
refers to the local path to the folder on the server that contains your website.
For example, I have EasyPHP setup on a machine...
$_SERVER["DOCUMENT_ROOT"]
gives me file:///C:/Program%20Files%20(x86)/EasyPHP-5.3.9/www
but any file I link to with just /
will be relative to my www
folder.
If you want to give the absolute path to a file on your server (from the server's root) you can use DOCUMENT_ROOT
. if you want to give the absolute path to a file from your website's root, use just /
.
PHP 5.4 has a function called http_response_code, so if you're using PHP 5.4 you can just do:
http_response_code(500);
I've written a polyfill for this function (Gist) if you're running a version of PHP under 5.4.
To answer your follow-up question, the HTTP 1.1 RFC says:
The reason phrases listed here are only recommendations -- they MAY be replaced by local equivalents without affecting the protocol.
That means you can use whatever text you want (excluding carriage returns or line feeds) after the code itself, and it'll work. Generally, though, there's usually a better response code to use. For example, instead of using a 500 for no record found, you could send a 404 (not found), and for something like "conditions failed" (I'm guessing a validation error), you could send something like a 422 (unprocessable entity).
I was trying to run docker(just installed) in an instance of AWS when the message appears.
I just write sudo service docker start
and works fine for me.
Also see AWS with Docker
With regard to Tomcat, a lot depends on the particular version. There was a bug fix https://bz.apache.org/bugzilla/show_bug.cgi?id=50026 which means the servlet-mapping (other than for '/') for the default servlet behaves differently in Tomcat 6.0.29 (and earlier) compared with later versions.
In order to clear all selection, I am using like this and its working fine for me. here is the script:
$("#ddlMultiselect").multiselect("clearSelection");
$("#ddlMultiselect").multiselect( 'refresh' );
Let me state it clearly that you can use the string overload to include nested levels regardless of the multiplicities of the corresponding relationships, if you don't mind using string literals:
query.Include("Collection.Property")
If you're using Guava, its latest release now lets you use
Hashing.hmacSha256()
Further documentation here: https://guava.dev/releases/23.0/api/docs/com/google/common/hash/Hashing.html#hmacSha256-byte:A-
Omar's solution is decent* if you cannot upgrade your environment to .NET 4.5 in order to gain access to the async and await APIs. That said, there here is one important change that should be made in order to avoid poor performance. A slight delay should be added between calls to Application.DoEvents() in order to prevent excessive CPU usage. By adding
Thread.Sleep(1);
before the call to Application.DoEvents(), you can add such a delay (1 millisecond) and prevent the application from using all of the cpu cycles available to it.
private void WaitNSeconds(int seconds)
{
if (seconds < 1) return;
DateTime _desired = DateTime.Now.AddSeconds(seconds);
while (DateTime.Now < _desired) {
Thread.Sleep(1);
System.Windows.Forms.Application.DoEvents();
}
}
*See https://blog.codinghorror.com/is-doevents-evil/ for a more detailed discussion on the potential pitfalls of using Application.DoEvents().
In Laravel 4 you can hide certain fields from being returned by adding the following in your model.
protected $hidden = array('password','secret_field');
http://laravel.com/docs/eloquent#converting-to-arrays-or-json
Email address validation is not as easy as it might seem. It's actually theoretically impossible to fully validate an email address using just a regular expression.
Check out my blog post about it for a discussion on the subject and a F# implementation using FParsec. [/shameless_plug]
A good answer for me was to install libtool:
sudo apt-get install libtool
If you are using a linux machine then check,
Generating new SSH keys and adding them to my Github account solved my problem. You can look into this page for more details. GitHelp.
For those who are already familiar with setting up a RecyclerView
to make a list, the good news is that making a grid is largely the same. You just use a GridLayoutManager
instead of a LinearLayoutManager
when you set the RecyclerView
up.
recyclerView.setLayoutManager(new GridLayoutManager(this, numberOfColumns));
If you need more help than that, then check out the following example.
The following is a minimal example that will look like the image below.
Start with an empty activity. You will perform the following tasks to add the RecyclerView
grid. All you need to do is copy and paste the code in each section. Later you can customize it to fit your needs.
Make sure the following dependencies are in your app gradle.build
file:
compile 'com.android.support:appcompat-v7:27.1.1'
compile 'com.android.support:recyclerview-v7:27.1.1'
You can update the version numbers to whatever is the most current.
Add the RecyclerView
to your xml layout.
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/rvNumbers"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
Each cell in our RecyclerView
grid is only going to have a single TextView
. Create a new layout resource file.
recyclerview_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:padding="5dp"
android:layout_width="50dp"
android:layout_height="50dp">
<TextView
android:id="@+id/info_text"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:background="@color/colorAccent"/>
</LinearLayout>
The RecyclerView
needs an adapter to populate the views in each cell with your data. Create a new java file.
MyRecyclerViewAdapter.java
public class MyRecyclerViewAdapter extends RecyclerView.Adapter<MyRecyclerViewAdapter.ViewHolder> {
private String[] mData;
private LayoutInflater mInflater;
private ItemClickListener mClickListener;
// data is passed into the constructor
MyRecyclerViewAdapter(Context context, String[] data) {
this.mInflater = LayoutInflater.from(context);
this.mData = data;
}
// inflates the cell layout from xml when needed
@Override
@NonNull
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = mInflater.inflate(R.layout.recyclerview_item, parent, false);
return new ViewHolder(view);
}
// binds the data to the TextView in each cell
@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
holder.myTextView.setText(mData[position]);
}
// total number of cells
@Override
public int getItemCount() {
return mData.length;
}
// stores and recycles views as they are scrolled off screen
public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView myTextView;
ViewHolder(View itemView) {
super(itemView);
myTextView = itemView.findViewById(R.id.info_text);
itemView.setOnClickListener(this);
}
@Override
public void onClick(View view) {
if (mClickListener != null) mClickListener.onItemClick(view, getAdapterPosition());
}
}
// convenience method for getting data at click position
String getItem(int id) {
return mData[id];
}
// allows clicks events to be caught
void setClickListener(ItemClickListener itemClickListener) {
this.mClickListener = itemClickListener;
}
// parent activity will implement this method to respond to click events
public interface ItemClickListener {
void onItemClick(View view, int position);
}
}
Notes
GridView
and is a common need. You can remove this code if you don't need it.Add the following code to your main activity.
MainActivity.java
public class MainActivity extends AppCompatActivity implements MyRecyclerViewAdapter.ItemClickListener {
MyRecyclerViewAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// data to populate the RecyclerView with
String[] data = {"1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", "43", "44", "45", "46", "47", "48"};
// set up the RecyclerView
RecyclerView recyclerView = findViewById(R.id.rvNumbers);
int numberOfColumns = 6;
recyclerView.setLayoutManager(new GridLayoutManager(this, numberOfColumns));
adapter = new MyRecyclerViewAdapter(this, data);
adapter.setClickListener(this);
recyclerView.setAdapter(adapter);
}
@Override
public void onItemClick(View view, int position) {
Log.i("TAG", "You clicked number " + adapter.getItem(position) + ", which is at cell position " + position);
}
}
Notes
ItemClickListener
that we defined in our adapter. This allows us to handle cell click events in onItemClick
.That's it. You should be able to run your project now and get something similar to the image at the top.
Rounded corners
Auto-fitting columns
Best one
String str_date=month+"-"+day+"-"+yr;
DateFormat formatter = new SimpleDateFormat("MM-dd-yyyy");
Date date = (Date)formatter.parse(str_date);
long output=date.getTime()/1000L;
String str=Long.toString(output);
long timestamp = Long.parseLong(str) * 1000;
<nav class="navbar navbar-expand-lg navbar-light fixed-top bg-transparent">
<a class="navbar-brand" href="#">Navbar w/ text</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarText" aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarText">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Features</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Pricing</a>
</li>
</ul>
<span class="navbar-text">
Navbar text with an inline element
</span>
</div>
</nav>
_x000D_
Not tested, but probably something like if(preg_match("/^[0-9,]+$/", $a)) $a = str_replace(...)
Do it the other way around:
$a = "1,435";
$b = str_replace( ',', '', $a );
if( is_numeric( $b ) ) {
$a = $b;
}
The easiest would be:
$var = intval(preg_replace('/[^\d.]/', '', $var));
or if you need float:
$var = floatval(preg_replace('/[^\d.]/', '', $var));
Before your call either insert the loading image in a div/span somewhere and then on the success function remove that image. Alternatively you can set up a css class like loading that might look like this
.loading
{
width: 16px;
height: 16px;
background:transparent url('loading.gif') no-repeat 0 0;
font-size: 0px;
display: inline-block;
}
And then assign this class to a span/div and clear it in the success function
If the response is in json then it would be like:
alert(response.id);
Otherwise
var str='{"id":"2231f87c-a62c-4c2c-8f5d-b76d11942301"}';
(Edited: wasn't aware of the `naked link' problem, sorry about that)
Taken from here:
string myString = "find Me and replace ME";
string strReplace = "me";
myString = Regex.Replace(myString, "me", strReplace, RegexOptions.IgnoreCase);
Seems you are not the first to complain of the lack of case insensitive string.Replace.
So,. I had this issue,. except I got [object object]
I'm sure you could do this with recursion but this worked for me:
Here is what I did in my console:
var object_that_is_not_shallow = $("all_obects_with_this_class_name");
var str = '';
object_that_is_not_shallow.map(function(_,e){
str += $(e).html();
});
copy(str);
Then paste into your editor.
The question is kind of old, but I get a good result creating a function to convert an object in a Json string from a string variable to an integer
function getInt(arr, prop) {
var int;
for (var i=0 ; i<arr.length ; i++) {
int = parseInt(arr[i][prop])
arr[i][prop] = int;
}
return arr;
}
the function just go thru the array and return all elements of the object of your selection as an integer
Use this, it may help.
@Override
public void onBackPressed() {
new AlertDialog.Builder(this)
.setTitle("Message")
.setMessage("Do you want to exit app?")
.setNegativeButton("NO", null)
.setPositiveButton("YES", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
UserLogin.super.onBackPressed();
}
}).create().show();
}
Check these steps.
I found the answer today. Maybe its too late but still I think its a much better one. Check this one https://jsfiddle.net/Amar_newDev/khb2oyru/5/
Try to change the CSS code : <ul> max-width:1%; margin:auto; text-align:left; </ul>
max-width:80% or something like that.
Try experimenting you might find something new.
I use python setup.py build_ext -R/usr/local/lib -I/usr/local/include/libcalg-1.0
and the compiled .so file is under the build folder.
you can type python setup.py --help build_ext
to see the explanations of -R and -I
Value of textarea is also taken with val
method:
var message = $('textarea#message').val();
If you use "=", a replica is created for the original arraylist in the second one, but the reference is same so if you change in one list , the other one will also get modified. Use this instead of "="
List_Of_Array1.addAll(List_Of_Array);
The PHP function array_key_exists()
determines if a particular key, or numerical index, exists for an element of an array. However, if you want to determine if a key exists and is associated with a value, the PHP language construct isset()
can tell you that (and that the value is not null
). array_key_exists()
cannot return information about the value of a key/index.
@alvas has a good answer. But again it depends on the nature of the task, for example in your application you want to consider all conjunction
e.g. and, or, but, if, while and all determiner
e.g. the, a, some, most, every, no as stop words considering all others parts of speech as legitimate, then you might want to look into this solution which use Part-of-Speech Tagset to discard words, Check table 5.1:
import nltk
STOP_TYPES = ['DET', 'CNJ']
text = "some data here "
tokens = nltk.pos_tag(nltk.word_tokenize(text))
good_words = [w for w, wtype in tokens if wtype not in STOP_TYPES]
For a dynamic approach, if your labels are always in front of your text areas:
$(object).prev("label").text(charsleft);
Thast should be easy enough
if( myList.Any( s => s.Contains(stringToCheck))){
//do your stuff here
}
Sometimes this error occurs for old javascript sdk. If you save locally javascript file. Update it. I prefer to load it form the facebook server all the time.
This will work in most browsers, even in IE8 , and no libraries of any sort are required. var i is your key.
var myJSONObject = {"ircEvent": "PRIVMSG", "method": "newURI", "regex": "^http://.*"};
var keys=[];
for (var i in myJSONObject ) { keys.push(i); }
alert(keys);
I used the header("Access-Control-Allow-Origin: *");
method but still received the CORS error. It turns out that the PHP script that was being requested had an error in it (I had forgotten to add a period (.) when concatenating two variables). Once I fixed that typo, it worked!
So, It seems that the remote script being called cannot have errors within it.
XSD : XML Schema Definition.
XML : eXtensible Markup Language.
WSDL : Web Service Definition Language.
I am not going to answer in technical terms. I am aiming this explanation at beginners.
It is not easy to communicate between two different applications that are developed using two different technologies. For example, a company in Chicago might develop a web application using Java and another company in New York might develop an application in C# and when these two companies decided to share information then XML comes into picture. It helps to store and transport data between two different applications that are developed using different technologies. Note: It is not limited to a programming language, please do research on the information transportation between two different apps.
XSD is a schema definition. By that what I mean is, it is telling users to develop their XML in such a schema. Please see below images, and please watch closely with "load-on-startup" element and its type which is integer. In the XSD image you can see it is meant to be integer value for the "load-on-startup" and hence when user created his/her XML they passed an int value to that particular element. As a reminder, XSD is a schema and style whereas XML is a form to communicate with another application or system. One has to see XSD and create XML in such a way or else it won't communicate with another application or system which has been developed with a different technology. A company in Chicago provides a XSD template for a company in Texas to write or generate their XML in the given XSD format. If the company in Texas failed to adhere with those rules or schema mentioned in XSD then it is impossible to expect correct information from the company in Chicago. There is so much to do after the above said story, which an amateur or newbie have to know while coding for some thing like I said above. If you really want to know what happens later then it is better to sit with senior software engineers who actually developed web services. Next comes WSDL, please follow the images and try to figure out where the WSDL will fit in.
***************========Below is partial XML image ==========***************
***************========Below is partial XSD image ==========***************
***************========Below is the partial WSDL image =======*************
I had to create a sample WSDL for a web service called Book. Note, it is an XSD but you have to call it WSDL (Web Service Definition Language) because it is very specific for Web Services. The above WSDL (or in other words XSD) is created for a class called Book.java and it has created a SOAP service. How the SOAP web service created it is a different topic. One has to write a Java class and before executing it create as a web service the user has to make sure Axis2 API is installed and Tomcat to host web service is in place.
As a servicer (the one who allows others (clients) to access information or data from their systems ) actually gives the client (the one who needs to use servicer information or data) complete access to data through a Web Service, because no company on the earth willing to expose their Database for outsiders. Like my company, decided to give some information about products via Web Services, hence we had to create XSD template and pass-on to few of our clients who wants to work with us. They have to write some code to make complete use of the given XSD and make Web Service calls to fetch data from servicer and convert data returned into their suitable requirement and then display or publish data or information about the product on their website. A simple example would be FLIGHT Ticket booking. An airline will let third parties to use flight data on their site for ticket sales. But again there is much more to it, it is just not letting third party flight ticket agent to sell tickets, there will be synchronize and security in place. If there is no sync then there is 100 % chances more than 1 customer might buy same flight ticket from various sources.
I am hoping experts will contribute to my answer. It is really hard for newbie or novice to understand XML, XSD and then to work on Web Services.
If the goal is to style the img after browser has rendered image, you should:
const img = new Image();
img.src = 'path/to/img.jpg';
img.decode().then(() => {
/* set styles */
/* add img to DOM */
});
because the browser first loads the compressed version of image
, then decodes it
, finally paints
it. since there is no event for paint
you should run your logic after browser has decoded
the img tag.
<a href="javascript:void(0)" class="aaf" id="users_id">add as a friend</a>
on jquery
$('.aaf').on("click",function(){
var usersid = $(this).attr("id");
//post code
})
//other method is to use the data attribute
<a href="javascript:void(0)" class="aaf" data-id="102" data-username="sample_username">add as a friend</a>
on jquery
$('.aaf').on("click",function(){
var usersid = $(this).data("id");
var username = $(this).data("username");
})
Well, actually I'll have to say David is right with his solution, but there are some topics disturbing me:
ViewModel
, and include the Model as member in the ViewModel
, then you effectively sent your model to the View => this is BADSo how can you create a better coupling?
I would use a tool like AutoMapper
or ValueInjecter to map between ViewModel
and Model.
AutoMapper
does seem to have the better syntax and feel to it, but the current version lacks a
very severe topic: It is not able to perform the mapping from ViewModel
to Model (under certain circumstances like flattening, etc., but this is off topic)
So at present I prefer to use ValueInjecter
.
So you create a ViewModel
with the fields you need in the view.
You add the SelectList items you need as lookups.
And you add them as SelectLists already. So you can query from a LINQ enabled sourc, select the ID and text field and store it as a selectlist:
You gain that you do not have to create a new type (dictionary) as lookup and you just move the new SelectList
from the view to the controller.
// StaffTypes is an IEnumerable<StaffType> from dbContext
// viewModel is the viewModel initialized to copy content of Model Employee
// viewModel.StaffTypes is of type SelectList
viewModel.StaffTypes =
new SelectList(
StaffTypes.OrderBy( item => item.Name )
"StaffTypeID",
"Type",
viewModel.StaffTypeID
);
In the view you just have to call
@Html.DropDownListFor( model => mode.StaffTypeID, model.StaffTypes )
Back in the post element of your method in the controller you have to take a parameter of the type of your ViewModel
. You then check for validation.
If the validation fails, you have to remember to re-populate the viewModel.StaffTypes
SelectList, because this item will be null on entering the post function.
So I tend to have those population things separated into a function.
You just call back return new View(viewModel)
if anything is wrong.
Validation errors found by MVC3 will automatically be shown in the view.
If you have your own validation code you can add validation errors by specifying which field they belong to. Check documentation on ModelState
to get info on that.
If the viewModel
is valid you have to perform the next step:
If it is a create of a new item, you have to populate a model from the viewModel
(best suited is ValueInjecter
). Then you can add it to the EF collection of that type and commit changes.
If you have an update, you get the current db item first into a model. Then you can copy the values from the viewModel
back to the model (again using ValueInjecter
gets you do that very quick).
After that you can SaveChanges
and are done.
Feel free to ask if anything is unclear.
From the Python documentation itself, you can use max
:
>>> mylist = ['123','123456','1234']
>>> print max(mylist, key=len)
123456
How can I write an 'INSERT unless this row already exists' SQL statement?
There is a nice way of doing conditional INSERT in PostgreSQL:
INSERT INTO example_table
(id, name)
SELECT 1, 'John'
WHERE
NOT EXISTS (
SELECT id FROM example_table WHERE id = 1
);
CAVEAT This approach is not 100% reliable for concurrent write operations, though. There is a very tiny race condition between the SELECT
in the NOT EXISTS
anti-semi-join and the INSERT
itself. It can fail under such conditions.
If you are stuck with a legacy database where someone already placed JPA annotations on but did NOT define the relationships and you are now trying to define them for use in your code, then you might NOT be able to delete the customerId @Column
since other code may directly reference it already. In that case, define the relationships as follows:
@ManyToOne(optional=false)
@JoinColumn(name="productId",referencedColumnName="id_product", insertable=false, updatable=false)
private Product product;
@ManyToOne(optional=false)
@JoinColumn(name="customerId",referencedColumnName="id_customer", insertable=false, updatable=false)
private Customer customer;
This allows you to access the relationships. However, to add/update to the relationships you will have to manipulate the foreign keys directly via their defined @Column
values. It's not an ideal situation, but if you are handed this sort of situation, at least you can define the relationships so that you can use JPQL successfully.
This is some different method to do the same thing:
$(document).ready(function (){_x000D_
_x000D_
$('#isAgeSelected').click(function() {_x000D_
// $("#txtAge").toggle(this.checked);_x000D_
_x000D_
// Using a pure CSS selector_x000D_
if ($(this.checked)) {_x000D_
alert('on check 1');_x000D_
};_x000D_
_x000D_
// Using jQuery's is() method_x000D_
if ($(this).is(':checked')) {_x000D_
alert('on checked 2');_x000D_
};_x000D_
_x000D_
// // Using jQuery's filter() method_x000D_
if ($(this).filter(':checked')) {_x000D_
alert('on checked 3');_x000D_
};_x000D_
});_x000D_
});
_x000D_
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>_x000D_
<input type="checkbox" id="isAgeSelected"/>_x000D_
<div id="txtAge" style="display:none">Age is something</div>
_x000D_
Check out the DoWorkEventArgs.Argument Property:
...
backgroundWorker1.RunWorkerAsync(yourInt);
...
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
// Do not access the form's BackgroundWorker reference directly.
// Instead, use the reference provided by the sender parameter.
BackgroundWorker bw = sender as BackgroundWorker;
// Extract the argument.
int arg = (int)e.Argument;
// Start the time-consuming operation.
e.Result = TimeConsumingOperation(bw, arg);
// If the operation was canceled by the user,
// set the DoWorkEventArgs.Cancel property to true.
if (bw.CancellationPending)
{
e.Cancel = true;
}
}
Painfully slow (and crudely implemented) but a combination of svn log and svn cat works if you are searching the history of single files or small repositories:
svn log filetosearch |
grep '^r' |
cut -f1 -d' ' |
xargs -i bash -c "echo '{}'; svn cat filetosearch -'{}'"
will output each revision number where file changed and the file. You could always cat each revision into a different file and then grep for changes.
PS. Massive upvotes to anyone that shows me how to do this properly!
You can reset your branch to the state it was in just before the merge if you find the commit it was on then.
One way is to use git reflog
, it will list all the HEADs you've had.
I find that git reflog --relative-date
is very useful as it shows how long ago each change happened.
Once you find that commit just do a git reset --hard <commit id>
and your branch will be as it was before.
If you have SourceTree, you can look up the <commit id>
there if git reflog
is too overwhelming.
I think you're confusing server code with client code.
JavaScript runs on the client after it has received data from the server (like a webpage).
PHP runs on the server before it sends the data.
So there are two ways with interacting with JavaScript with php.
Like above, you can generate javascript with php in the same fashion you generate HTML with php.
Or you can use an AJAX request from javascript to interact with the server. The server can respond with data and the javascript can receive that and do something with it.
I'd recommend going back to the basics and studying how HTTP works in the server-client relationship. Then study the concept of server side languages and client side languages.
Then take a tutorial with ajax, and you will start getting the concept.
Good luck, google is your friend.
Yes, you will have to implement the constructors that make sense for each derivation and then use the base
keyword to direct that constructor to the appropriate base class or the this
keyword to direct a constructor to another constructor in the same class.
If the compiler made assumptions about inheriting constructors, we wouldn't be able to properly determine how our objects were instantiated. In the most part, you should consider why you have so many constructors and consider reducing them to only one or two in the base class. The derived classes can then mask out some of them using constant values like null
and only expose the necessary ones through their constructors.
In C#4 you could specify default parameter values and use named parameters to make a single constructor support multiple argument configurations rather than having one constructor per configuration.
If updating cURL doesn't fix it, updating NSS should do the trick.
You are on the right track.
On your header set
Content-Type: application/x-www-form-urlencoded
The body of the POST request should be =test
and nothing else. For unknown/variable strings you have to URL encode the value so that way you do not accidentally escape with an input character.
See also POST string to ASP.NET Web Api application - returns null
position()
. E.G.:
<countNo><xsl:value-of select="position()" /></countNo>
String send =
"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
"<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\">\n" +
" <soap:Body>\n" +
" </soap:Body>\n" +
"</soap:Envelope>";
private static String getResponse(String send) throws Exception {
String url = "https://api.comscore.com/KeyMeasures.asmx"; //endpoint
String result = "";
String username="user_name";
String password="pass_word";
String[] command = {"curl", "-u", username+":"+password ,"-X", "POST", "-H", "Content-Type: text/xml", "-d", send, url};
ProcessBuilder process = new ProcessBuilder(command);
Process p;
try {
p = process.start();
BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
StringBuilder builder = new StringBuilder();
String line = null;
while ( (line = reader.readLine()) != null) {
builder.append(line);
builder.append(System.getProperty("line.separator"));
}
result = builder.toString();
}
catch (IOException e)
{ System.out.print("error");
e.printStackTrace();
}
return result;
}
One way for me to understand wildcards is to think that the wildcard isn't specifying the type of the possible objects that given generic reference can "have", but the type of other generic references that it is is compatible with (this may sound confusing...) As such, the first answer is very misleading in it's wording.
In other words, List<? extends Serializable>
means you can assign that reference to other Lists where the type is some unknown type which is or a subclass of Serializable. DO NOT think of it in terms of A SINGLE LIST being able to hold subclasses of Serializable (because that is incorrect semantics and leads to a misunderstanding of Generics).
Basically, yes. A fork
is just a request for GitHub to clone the project and registers it under your username; GitHub also keeps track of the relationship between the two repositories, so you can visualize the commits and pulls between the two projects (and other forks).
You can still request that people pull from your cloned repository, even if you don't use fork
-- but you'd have to deal with making it publicly available yourself. Or send the developers patches (see git format-patch
) that they can apply to their trees.
If you cannot find the .exe file, rebuild your solution and in your "Output" from Visual Studio the path to the file will be shown.
Something like this should suffice, to do what your batch file was doing (dumping the result set as semi-colon delimited text to the console):
// sqlcmd.exe
// -S .\PDATA_SQLEXPRESS
// -U sa
// -P 2BeChanged!
// -d PDATA_SQLEXPRESS
// -s ; -W -w 100
// -Q "SELECT tPatCulIntPatIDPk, tPatSFirstname, tPatSName, tPatDBirthday FROM [dbo].[TPatientRaw] WHERE tPatSName = '%name%' "
DataTable dt = new DataTable() ;
int rows_returned ;
const string credentials = @"Server=(localdb)\.\PDATA_SQLEXPRESS;Database=PDATA_SQLEXPRESS;User ID=sa;Password=2BeChanged!;" ;
const string sqlQuery = @"
select tPatCulIntPatIDPk ,
tPatSFirstname ,
tPatSName ,
tPatDBirthday
from dbo.TPatientRaw
where tPatSName = @patientSurname
" ;
using ( SqlConnection connection = new SqlConnection(credentials) )
using ( SqlCommand cmd = connection.CreateCommand() )
using ( SqlDataAdapter sda = new SqlDataAdapter( cmd ) )
{
cmd.CommandText = sqlQuery ;
cmd.CommandType = CommandType.Text ;
connection.Open() ;
rows_returned = sda.Fill(dt) ;
connection.Close() ;
}
if ( dt.Rows.Count == 0 )
{
// query returned no rows
}
else
{
//write semicolon-delimited header
string[] columnNames = dt.Columns
.Cast<DataColumn>()
.Select( c => c.ColumnName )
.ToArray()
;
string header = string.Join("," , columnNames) ;
Console.WriteLine(header) ;
// write each row
foreach ( DataRow dr in dt.Rows )
{
// get each rows columns as a string (casting null into the nil (empty) string
string[] values = new string[dt.Columns.Count];
for ( int i = 0 ; i < dt.Columns.Count ; ++i )
{
values[i] = ((string) dr[i]) ?? "" ; // we'll treat nulls as the nil string for the nonce
}
// construct the string to be dumped, quoting each value and doubling any embedded quotes.
string data = string.Join( ";" , values.Select( s => "\""+s.Replace("\"","\"\"")+"\"") ) ;
Console.WriteLine(values);
}
}
You can use java.util.regex.Pattern with the CASE_INSENSITIVE flag for case insensitive matching:
Pattern.compile(Pattern.quote(strptrn), Pattern.CASE_INSENSITIVE).matcher(str1).find();
Use data-dismiss="modal"
. In the version of Bootstrap I am using v3.3.5, when data-dismiss="modal"
is added to the desired button like shown below it calls my external Javascript (JQuery) function beautifully and magically closes the modal. Its soo Sweet, I was worried I would have to call some modal hide in another function and chain that to the real working function
<a href="#" id="btnReleaseAll" class="btn btn-primary btn-default btn-small margin-right pull-right" data-dismiss="modal">Yes</a>
In some external script file, and in my doc ready there is of course a function for the click of that identifier ID
$("#divExamListHeader").on('click', '#btnReleaseAll', function () {
// Do DatabaseMagic Here for a call a MVC ActionResult
Under Project->Properties->Debug, you should see a box for Command line arguments (This is in C# 2010, but it should basically be the same place)
Some apps are marked as less secure by google, so you just need to give access for those app so google will allow you to access its services to you.
Either use one of the standard date and time format strings which only specifies the date (e.g. "D" or "d"), or a custom date and time format string which only uses the date parts (e.g. "yyyy/MM/dd").
Try,
public class Sent
{
public int MsgID;
public string Content;
public int Status;
}
public class Messages
{
public int MsgID;
public string Content;
}
List<Sent> SentList = new List<Sent>() { new Sent() { MsgID = 1, Content = "aaa", Status = 0 }, new Sent() { MsgID = 3, Content = "ccc", Status = 0 } };
List<Messages> MsgList = new List<Messages>() { new Messages() { MsgID = 1, Content = "aaa" }, new Messages() { MsgID = 2, Content = "bbb" }, new Messages() { MsgID = 3, Content = "ccc" }, new Messages() { MsgID = 4, Content = "ddd" }, new Messages() { MsgID = 5, Content = "eee" }};
int [] sentMsgIDs = SentList.Select(v => v.MsgID).ToArray();
List<Messages> result1 = MsgList.Where(o => !sentMsgIDs.Contains(o.MsgID)).ToList<Messages>();
Hope it should help.
I ran into this error when I had a .jsx and .scss file in the same directory with the same root name.
So, for example, if you have Component.jsx
and Component.scss
in the same folder and you try to do this:
import Component from ./Component
Webpack apparently gets confused and, at least in my case, tries to import the scss file when I really want the .jsx file.
I was able to fix it by renaming the .scss file and avoiding the ambiguity. I could have also explicitly imported Component.jsx
I think the solutions proposed so far have the following drawbacks:
I have improved on the solutions above. Here is something that I have tested that works really well with the following benefits.
Key Points to note :
<script id="print-header" type="text/x-jquery-tmpl">_x000D_
<html>_x000D_
<header>_x000D_
<title>Printing Para {num}</title>_x000D_
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">_x000D_
<style>_x000D_
body {_x000D_
max-width: 300px;_x000D_
}_x000D_
</style>_x000D_
</header>_x000D_
<body onload="window.print()">_x000D_
<h2>Printing Para {num} </h2>_x000D_
<h4>http://math.tools</h4>_x000D_
</script>_x000D_
<script id="print-footer" type="text/x-jquery-tmpl">_x000D_
</body>_x000D_
</html>_x000D_
</script>_x000D_
<script>_x000D_
$('.printthis').click(function() {_x000D_
num = $(this).attr("data-id");_x000D_
w = window.open();_x000D_
w.document.write(_x000D_
$("#print-header").html().replace("{num}",num) +_x000D_
$("#para-" + num).html() +_x000D_
$("#print-footer").html() _x000D_
);_x000D_
w.document.close();_x000D_
w.focus();_x000D_
//w.print(); Don't do this otherwise chrome won't work. Look at the onload on the body of the newly created window._x000D_
///w.close(); Don't do this otherwise chrome won't work_x000D_
});_x000D_
</script>
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
_x000D_
<a class="btn printthis" data-id="1" href="#" title="Print Para 1"><i class="fa fa-print"></i> Print Para 1</a>_x000D_
<a class="btn printthis" data-id="2" href="#" title="Print Para 2"><i class="fa fa-print"></i> Print Para 2</a>_x000D_
_x000D_
<p class="para" id="para-1">_x000D_
Para 1 : Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>_x000D_
_x000D_
_x000D_
<p class="para" id="para-2">_x000D_
Para 2 : Lorem 2 ipsum 2 dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>_x000D_
_x000D_
There are lots of ways. And this should work too in all browsers and you don't have to use document.getElementById anymore since you're passing the element itself to the function.
<input type="button" value="Open Curtain" onclick="return change(this);" />
<script type="text/javascript">
function change( el )
{
if ( el.value === "Open Curtain" )
el.value = "Close Curtain";
else
el.value = "Open Curtain";
}
</script>
try this it's very easy to use and tested on IE and Safari and FF and worked fine and beside no need for many div
around it just add id
and it will work fine, after you link you Js and Css files. FaceScroll Custom scrollbar
hope it help's
Edit Step 1: Add the below script to the section of your page:
<link href="general.css" rel="stylesheet" type="text/css">
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/jquery-ui.min.js"></script>
<script type="text/javascript" src="jquery.ui.touch-punch.min.js"></script>
<script type="text/javascript" src="facescroll.js"></script>
<script type="text/javascript">
jQuery(function(){ // on page DOM load
$('#demo1').alternateScroll();
$('#demo2').alternateScroll({ 'vertical-bar-class': 'styled-v-bar', 'hide-bars': false });
})
</script>
Step 2: Then in the BODY of your page, add the below sample HTML block to your page.
<p><b>Scrollbar (default style) shows onMouseover</b></p>
<div id="demo1" style="width:300px; height:250px; padding:8px; background:lightyellow; border:1px solid gray; resize:both; overflow:scroll">
From Wikipedia- Gunpowder, also known since in the late 19th century as black powder, was the first chemical explosive and the only one known until the mid 1800s.[2] It is a mixture of sulfur, charcoal, and potassium nitrate (saltpeter) - with the sulfur and charcoal acting as fuels, while the saltpeter works as an oxidizer.[3] Because of its
</div>
<br />
<p><b>Scrollbar (alternate style), always shown</b></p>
<div id="demo2" style="width:400px; height:130px; padding:10px; padding-right:8px; background:lightyellow; border:1px solid gray; overflow:scroll; resize:both;">
From Wikipedia- Gunpowder, also known since in the late 19th century as black powder, was the first chemical explosive and the only one known until the mid 1800s.[2] It is a mixture of sulfur, charcoal, and potassium nitrate (saltpeter) - with the sulfur and charcoal acting as fuels, while the saltpeter works as an oxidizer.[3] Because of its
</div>
Usually, we want to divide our vector into a number of intervals. In this case, you can use a function where (a) is a vector and (b) is the number of intervals. (Let's suppose you want 4 intervals)
a <- 1:10
b <- 4
FunctionIntervalM <- function(a,b) {
seq(from=min(a), to = max(a), by = (max(a)-min(a))/b)
}
FunctionIntervalM(a,b)
# 1.00 3.25 5.50 7.75 10.00
Therefore you have 4 intervals:
1.00 - 3.25
3.25 - 5.50
5.50 - 7.75
7.75 - 10.00
You can also use a cut function
cut(a, 4)
# (0.991,3.25] (0.991,3.25] (0.991,3.25] (3.25,5.5] (3.25,5.5] (5.5,7.75]
# (5.5,7.75] (7.75,10] (7.75,10] (7.75,10]
#Levels: (0.991,3.25] (3.25,5.5] (5.5,7.75] (7.75,10]
Here's an example that worked for me. I had a list of about 500 specific files in a text file, contained in about 100 different folders, that I was supposed to copy over to a backup location in case those files were needed later. The text file contained full path and file name, one per line. In my case, I wanted to strip off the Drive letter and first sub-folder name from each file name. I wanted to copy all these files to a similar folder structure under another root destination folder I specified. I hope other users find this helpful.
# Copy list of files (full path + file name) in a txt file to a new destination, creating folder structure for each file before copy
$rootDestFolder = "F:\DestinationFolderName"
$sourceFiles = Get-Content C:\temp\filelist.txt
foreach($sourceFile in $sourceFiles){
$filesplit = $sourceFile.split("\")
$splitcount = $filesplit.count
# This example strips the drive letter & first folder ( ex: E:\Subfolder\ ) but appends the rest of the path to the rootDestFolder
$destFile = $rootDestFolder + "\" + $($($sourceFile.split("\")[2..$splitcount]) -join "\")
# Output List of source and dest
Write-Host ""
Write-Host "===$sourceFile===" -ForegroundColor Green
Write-Host "+++$destFile+++"
# Create path and file, if they do not already exist
$destPath = Split-Path $destFile
If(!(Test-Path $destPath)) { New-Item $destPath -Type Directory }
If(!(Test-Path $destFile)) { Copy-Item $sourceFile $destFile }
}
I solved my slow Git problem on Windows 7 x64 by starting cmd.exe with "Run as administrator".
For CentOS / RedHat / Fedora :
sudo yum install php-gd
For Debian/ubuntu :
sudo apt-get install php5-gd
For CentOS / RedHat / Fedora :
sudo yum install freetype*
For Debian/ubuntu :
sudo apt-get install freetype*
Don't forget to restart apache after that (if you are using apache):
CentOS / RedHat / Fedora :
sudo /etc/init.d/httpd restart
Or
sudo service httpd restart
Debian/ubuntu :
sudo /etc/init.d/apache2 restart
Or
sudo service apache2 restart
Try this.
Dim Workbk as workbook
Set Workbk = thisworkbook
Now everything you program will apply just for your containing macro workbook.
Just to add one more point to this:
R does have a data structure equivalent to the Python dict in the hash
package. You can read about it in this blog post from the Open Data Group. Here's a simple example:
> library(hash)
> h <- hash( keys=c('foo','bar','baz'), values=1:3 )
> h[c('foo','bar')]
<hash> containing 2 key-value pairs.
bar : 2
foo : 1
In terms of usability, the hash
class is very similar to a list. But the performance is better for large datasets.
As @qiao said, you can't use __dirname
in the node repl. However, if you need need this value in the console, you can use path.resolve()
or path.dirname()
. Although, path.dirname()
will just give you a "." so, probably not that helpful. Be sure to require('path')
.
For MYSQL
ALTER TABLE myTable MODIFY myColumn {DataType} NULL
To get your program to run, please put jsp files under web-content and not under WEB-INF
because in Eclipse the files are not accessed there by the server, so try starting the server and browsing to URL:
http://localhost:8080/YourProject/yourfile.jsp
then your problem will be solved.
An article at zerokspot entitled Custom filebrowser callbacks in CKEditor 3.0 handles this. The most relevant section is quoted below:
So all you have to do from the file browser when you have a file selected is to call this code with the right callback number (normally 1) and the URL of the selected file:
window.opener.CKEDITOR.tools.callFunction(CKEditorFuncNum,url);
For the quick-uploader the process is quite similar. At first I thought that the editor might be listening for a 200 HTTP return code and perhaps look into some header field or something like that to determine the location of the uploaded file, but then - through some Firebug monitoring - I noticed that all that happens after an upload is the following code:
<script type="text/javascript">
window.parent.CKEDITOR.tools.callFunction(CKEditorFuncNum,url, errorMessage);
</script>
If the upload failed, set the
errorMessage
to some non-zero-length string and empty the url, and vice versa on success.
It works perfectly. I have gcc compiler C++11 ready. Try this and you'll see:
#include <iostream>
using namespace std;
int main()
{
int pause;
struct Customer
{
int uid;
string name;
};
Customer customerRecords[2];
customerRecords[0] = {25, "Bob Jones"};
customerRecords[1] = {26, "Jim Smith"};
cout << customerRecords[0].uid << " " << customerRecords[0].name << endl;
cout << customerRecords[1].uid << " " << customerRecords[1].name << endl;
cin >> pause;
return 0;
}
You should use one way encryption (which is a way to encrypt a value so that is very hard to revers it). I'm not familiar with MySQL, but a quick search shows that it has a password() function that does exactly this kind of encryption. In the DB you will store the encrypted value and when the user wants to authenticate you take the password he provided, you encrypt it using the same algorithm/function and then you check that the value is the same with the password stored in the database for that user. This assumes that the communication between the browser and your server is secure, namely that you use https.
{% if profile.user.first_name %}
works (assuming you also don't want to accept ''
).
if
in Python in general treats None
, False
, ''
, []
, {}
, ... all as false.
You'll first need to separate your numpy array into two separate arrays containing x and y values.
x = [1, 2, 3, 9]
y = [1, 4, 1, 3]
curve_fit also requires a function that provides the type of fit you would like. For instance, a linear fit would use a function like
def func(x, a, b):
return a*x + b
scipy.optimize.curve_fit(func, x, y)
will return a numpy array containing two arrays: the first will contain values for a
and b
that best fit your data, and the second will be the covariance of the optimal fit parameters.
Here's an example for a linear fit with the data you provided.
import numpy as np
from scipy.optimize import curve_fit
x = np.array([1, 2, 3, 9])
y = np.array([1, 4, 1, 3])
def fit_func(x, a, b):
return a*x + b
params = curve_fit(fit_func, x, y)
[a, b] = params[0]
This code will return a = 0.135483870968
and b = 1.74193548387
Here's a plot with your points and the linear fit... which is clearly a bad one, but you can change the fitting function to obtain whatever type of fit you would like.
Redirect PHP time programming:
<?php
header("Refresh:10;url=***-----índex.php--OR----URL-----");
?>
If you have sed:
sed -e '/REFERENCE/d' -e '/ERROR/d' [FILENAME]
Where FILENAME
is the name of the text file with the good & bad lines
Just generalizing it down to aspect ratios and sizes, image stuff can be done outside of this function
public static d.RectangleF ScaleRect(d.RectangleF dest, d.RectangleF src,
bool keepWidth, bool keepHeight)
{
d.RectangleF destRect = new d.RectangleF();
float sourceAspect = src.Width / src.Height;
float destAspect = dest.Width / dest.Height;
if (sourceAspect > destAspect)
{
// wider than high keep the width and scale the height
destRect.Width = dest.Width;
destRect.Height = dest.Width / sourceAspect;
if (keepHeight)
{
float resizePerc = dest.Height / destRect.Height;
destRect.Width = dest.Width * resizePerc;
destRect.Height = dest.Height;
}
}
else
{
// higher than wide – keep the height and scale the width
destRect.Height = dest.Height;
destRect.Width = dest.Height * sourceAspect;
if (keepWidth)
{
float resizePerc = dest.Width / destRect.Width;
destRect.Width = dest.Width;
destRect.Height = dest.Height * resizePerc;
}
}
return destRect;
}
The required SQL will be some like:-
SELECT * FROM cd
LEFT JOIN ab ON ab.sht = cd.sht
LEFT JOIN aa ON aa.sht = cd.sht
....
Hope it helps.
The following approach worked well for me. I also did not need to use csv.reader()
or csv.writer()
functions, which I feel makes the code cleaner. The code is compatible with Python2 and Python 3.
from six.moves import urllib
DOWNLOAD_URL = "https://raw.githubusercontent.com/gjreda/gregreda.com/master/content/notebooks/data/city-of-chicago-salaries.csv"
DOWNLOAD_PATH ="datasets\city-of-chicago-salaries.csv"
urllib.request.urlretrieve(URL,DOWNLOAD_PATH)
Note - six is a package that helps in writing code that is compatible with both Python 2 and Python 3. For additional details regarding six see - What does from six.moves import urllib
do in Python?
String str = new String("SOME")
always create a new object on the heap
String str="SOME"
uses the String pool
Try this small example:
String s1 = new String("hello");
String s2 = "hello";
String s3 = "hello";
System.err.println(s1 == s2);
System.err.println(s2 == s3);
To avoid creating unnecesary objects on the heap use the second form.
do this on a new thread (seperate it from main thread)
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
}
}).run();
Yes, multiple calls to where() is a perfectly valid way to achieve this.
$this->db->where('username',$username);
$this->db->where('status',$status);
http://www.codeigniter.com/user_guide/database/query_builder.html