man you can use the basic Bootstrap Datepicker this way:
<!DOCTYPE html>
<head runat="server">
<title>Test Zone</title>
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css"/>
<link rel="stylesheet" type="text/css" href="Css/datepicker.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script src="../Js/bootstrap-datepicker.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$('#pickyDate').datepicker({
format: "dd/mm/yyyy"
});
});
</script>
and inside body:
<body>
<div id="testDIV">
<div class="container">
<div class="hero-unit">
<input type="text" placeholder="click to show datepicker" id="pickyDate"/>
</div>
</div>
</div>
datepicker.css and bootstrap-datepicker.js you can download from here on the Download button below "About" on the left side. Hope this help someone, greetings.
As mentioned by Quynh Nguyen, you don't need the '.' in the className. However - document.getElementsByClassName('col1') will return an array of objects.
This will return an "undefined" value because an array doesn't have a class. You'll still need to loop through the array elements...
function changeBGColor() {
var cols = document.getElementsByClassName('col1');
for(i = 0; i < cols.length; i++) {
cols[i].style.backgroundColor = 'blue';
}
}
Combining two answers: 49992698 and 47761914 :
# Create service account
kubectl create serviceaccount -n kube-system cluster-admin-dashboard-sa
# Bind ClusterAdmin role to the service account
kubectl create clusterrolebinding -n kube-system cluster-admin-dashboard-sa \
--clusterrole=cluster-admin \
--serviceaccount=kube-system:cluster-admin-dashboard-sa
# Parse the token
TOKEN=$(kubectl describe secret -n kube-system $(kubectl get secret -n kube-system | awk '/^cluster-admin-dashboard-sa-token-/{print $1}') | awk '$1=="token:"{print $2}')
I have recently had same issue with JPA-1.3
Nothing worked until I used explicit tools.xsd link
xsi:schemaLocation=" ...
http://www.springframework.org/schema/tool
http://www.springframework.org/schema/tool/spring-tool-3.2.xsd
... ">
like this:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/jdbc
http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd
http://www.springframework.org/schema/data/jpa
http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
http://www.springframework.org/schema/tool
http://www.springframework.org/schema/tool/spring-tool-3.2.xsd
">
freqs = {}
for word in words:
freqs[word] = freqs.get(word, 0) + 1 # fetch and increment OR initialize
I think this results to the same as Triptych's solution, but without importing collections. Also a bit like Selinap's solution, but more readable imho. Almost identical to Thomas Weigel's solution, but without using Exceptions.
This could be slower than using defaultdict() from the collections library however. Since the value is fetched, incremented and then assigned again. Instead of just incremented. However using += might do just the same internally.
For those who have TypeScript installed as a local package (and possibly as a dev dependency) via:
$ npm install typescript --save-dev
...and who have added tsc script to package.json:
"scripts": {
...
"tsc": "tsc"
},
You can call tsc --init
via npm
:
$ npm run tsc -- --init
This way you can remove 1 leading "[" and 1 trailing "]" character. If your string happen to not start with "[" or end with "]" it won't remove anything:
str.replaceAll("^\\[|\\]$", "")
Considering that both strings may be very large, there are 2 main approaches bitwise search
and localeCompare
I recommed this function
function compareLargeStrings(a,b){
if (a.length !== b.length) {
return false;
}
return a.localeCompare(b) === 0;
}
In Jsp:
action="profile/proffiesional"
In Controller
@RequestMapping(value = "proffessional", method = RequestMethod.POST)
Spelling MisMatch !
Use Glib::ustring from glibmm.
It is the only widespread UTF-8 string container (AFAIK). While glyph (not byte) based, it has the same method signatures as std::string
so the port should be simple search and replace (just make sure that your data is valid UTF-8 before loading it into a ustring
).
Assuming the application you are attempting to run in the background is CLI based, you can try calling the scheduled jobs using Hidden Start
Also see: http://www.howtogeek.com/howto/windows/hide-flashing-command-line-and-batch-file-windows-on-startup/
@philipobenito's answer worked best for me.
I first created a hidden input that contain the user's HTTP referer
<input type="hidden" name="referer" value="<?= $_SERVER['HTTP_REFERER'] ?>" />
and after a successful login i redirected the users to whatever value was stored in that hidden input
$_POST = filter_input_array(INPUT_POST, FILTER_SANITIZE_STRING);
if(!empty($_POST['referer'])){
header('Location: '.$_POST['referer']);
}
else{
header('Location: members.php'); //members.php is a page used to send a user to their profile page.
}
exit;
You cannot use WHILE
like that; see: mysql DECLARE WHILE outside stored procedure how?
You have to put your code in a stored procedure. Example:
CREATE PROCEDURE myproc()
BEGIN
DECLARE i int DEFAULT 237692001;
WHILE i <= 237692004 DO
INSERT INTO mytable (code, active, total) VALUES (i, 1, 1);
SET i = i + 1;
END WHILE;
END
Fiddle: http://sqlfiddle.com/#!2/a4f92/1
Alternatively, generate a list of INSERT
statements using any programming language you like; for a one-time creation, it should be fine. As an example, here's a Bash one-liner:
for i in {2376921001..2376921099}; do echo "INSERT INTO mytable (code, active, total) VALUES ($i, 1, 1);"; done
By the way, you made a typo in your numbers; 2376921001 has 10 digits, 237692200 only 9.
The paint()
method supports painting via a Graphics object.
The repaint()
method is used to cause paint()
to be invoked by the AWT painting thread.
It might be too late to answer this in 2019. but I tried all the answers and none worked for me. So I solved it simply this way:
@Html.EditorFor(m => m.SellDateForInstallment, "{0:dd/MM/yyyy}",
new {htmlAttributes = new { @class = "form-control", @type = "date" } })
EditorFor
is what worked for me.
Note that SellDateForInstallment
is a Nullable
datetime object.
public DateTime? SellDateForInstallment { get; set; } // Model property
A good example of a situation when @see
can be useful would be implementing or overriding an interface/abstract class method. The declaration would have javadoc
section detailing the method and the overridden/implemented method could use a @see
tag, referring to the base one.
Related question: Writing proper javadoc with @see?
Java SE documentation: @see
It does not write to a file by default. You would need to configure something like the RollingFileAppender
and have the root logger write to it (possibly in addition to the default ConsoleAppender
).
Another js alternative:
fontsize = function () {
var fontSize = $("#container").width() * 0.10; // 10% of container width
$("#container h1").css('font-size', fontSize);
};
$(window).resize(fontsize);
$(document).ready(fontsize);
Or as stated in torazaburo's answer you could use svg. I put together a simple example as a proof of concept:
<div id="container">
<svg width="100%" height="100%" viewBox="0 0 13 15">
<text x="0" y="13">X</text>
</svg>
</div>
I was able to call my callback function at minimum of 250ms using audio tag and handling its ontimeupdate event. Its called 3-4 times in a second. Its better than one second lagging setTimeout
Oracle has two different ways of making views updatable:-
I would stay away from instead-of triggers and get your code to update the underlying tables directly rather than through the view.
This answer will not work correctly with root paths containing equal signs (=
). (Thanks @dbenham for pointing that out.)
EDITED: Fixed the issue with paths containing !
, again spotted by @dbenham (thanks!).
Alternatively to calculating the length and extracting substrings you could use a different approach:
store the root path;
clear the root path from the file paths.
Here's my attempt (which worked for me):
@ECHO OFF
SETLOCAL DisableDelayedExpansion
SET "r=%__CD__%"
FOR /R . %%F IN (*) DO (
SET "p=%%F"
SETLOCAL EnableDelayedExpansion
ECHO(!p:%r%=!
ENDLOCAL
)
The r
variable is assigned with the current directory. Unless the current directory is the root directory of a disk drive, it will not end with (No longer the case, as the script now reads the \
, which we amend by appending the character.__CD__
variable, whose value always ends with \
(thanks @jeb!), instead of CD
.)
In the loop, we store the current file path into a variable. Then we output the variable, stripping the root path along the way.
If for some people (like me earlier) the above answers don't work, I think the following answer would work (for Mac users I think) Enter the following commands to do flask run
$ export FLASK_APP = hello.py
$ export FLASK_ENV = development
$ flask run
Alternatively you can do the following (I haven't tried this but one resource online talks about it)
$ export FLASK_APP = hello.py
$ python -m flask run
source: For more
You have no combinator (space, >
, +
...) so no children will get involved, ever.
However, you could avoid the need for jQuery by using an ID
and getElementById
, or you could use the old getElementsByName("frmSave")[0]
or the even older document.forms['frmSave']
. jQuery is unnecessary here.
Since the error deals with permissions on the object folder, I did a chown directly on the objects folder and it worked for me.
ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "alertMessage", "alert('Record Inserted Successfully')", true);
You can use this way, but be sure that there is no Page.Redirect()
is used.
If you want to redirect to another page then you can try this:
page.aspx:
<asp:Button AccessKey="S" ID="submitBtn" runat="server" OnClick="Submit" Text="Submit"
Width="90px" ValidationGroup="vg" CausesValidation="true" OnClientClick = "Confirm()" />
JavaScript code:
function Confirm()
{
if (Page_ClientValidate())
{
var confirm_value = document.createElement("INPUT");
confirm_value.type = "hidden";
confirm_value.name = "confirm_value";
if (confirm("Data has been Added. Do you wish to Continue ?"))
{
confirm_value.value = "Yes";
}
else
{
confirm_value.value = "No";
}
document.forms[0].appendChild(confirm_value);
}
}
and this is your code behind snippet :
protected void Submit(object sender, EventArgs e)
{
string confirmValue = Request.Form["confirm_value"];
if (confirmValue == "Yes")
{
Response.Redirect("~/AddData.aspx");
}
else
{
Response.Redirect("~/ViewData.aspx");
}
}
This will sure work.
For an explicit timezone-independent solution, use the pytz library.
import datetime
import pytz
pytz.utc.localize(datetime.datetime(2012,4,1,0,0), is_dst=False).timestamp()
Output (float): 1333238400.0
The reason is that the compiler has to actually see the definition in order to be able to drop it in in place of the call.
Remember that C and C++ use a very simplistic compilation model, where the compiler always only sees one translation unit at a time. (This fails for export, which is the main reason only one vendor actually implemented it.)
Just another viewpoint. Performing an "or" in Prolog can also be done with the "disjunct" operator or semi-colon:
registered(X, Y) :-
X = ct101; X = ct102; X = ct103.
For a fuller explanation:
From the official site: phantomjs site
sudo apt-get install build-essential chrpath git-core libssl-dev libfontconfig1-dev
git clone git://github.com/ariya/phantomjs.git
cd phantomjs
git checkout 1.8
./build.sh
the IDENT_OUTPUT did not do anything for me, and to give a complete answer that works with my jackson 2.2.3 jars:
public static void main(String[] args) throws IOException {
byte[] jsonBytes = Files.readAllBytes(Paths.get("C:\\data\\testfiles\\single-line.json"));
ObjectMapper objectMapper = new ObjectMapper();
Object json = objectMapper.readValue( jsonBytes, Object.class );
System.out.println( objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString( json ) );
}
The CSS you have applies color #c1c1c1 to all <a>
elements.
And it also applies color #c1c1c1 to the first <li>
element.
Perhaps the code you posted is missing something because I don't see any other colors being defined.
Try This
Just go to your Manifest file. and You have define the label for each activity in your manifest file.
<activity
android:name=".Search_Video"
android:label="@string/app_name"
android:screenOrientation="portrait">
</activity>
here change
android:label="@string/your_title"
This is my answer,
<!DOCTYPE html>
<html>
<body>
<h2>Create Object from JSON String</h2>
<p>
First Name: <span id="fname"></span><br>
Last Name: <span id="lname"></span><br>
</p>
<script>
var txt = '{"employees":[' +
'{"firstName":"John","lastName":"Doe" },' +
'{"firstName":"Anna","lastName":"Smith" },' +
'{"firstName":"Peter","lastName":"Jones" }]}';
//var jsonData = eval ("(" + txt + ")");
var jsonData = JSON.parse(txt);
for (var i = 0; i < jsonData.employees.length; i++) {
var counter = jsonData.employees[i];
//console.log(counter.counter_name);
alert(counter.firstName);
}
</script>
</body>
</html>
Ok uninstall the app, but we admit that the data not must be lost? This can be resolve, upgrading versionCode and versionName and try the application in "Release" mode.
For example, this is important when we want to try the migration of our Database. We can compare the our application on play store with actual application not release yet.
<div id='element_123_wrapper_text'>My sample DIV</div>
The Operator ^ - Match elements that starts with given value
div[id^="element_123"] {
}
The Operator $ - Match elements that ends with given value
div[id$="wrapper_text"] {
}
The Operator * - Match elements that have an attribute containing a given value
div[id*="wrapper_text"] {
}
Something like this should do it :
UPDATE table1
SET table1.Price = table2.price
FROM table1 INNER JOIN table2 ON table1.id = table2.id
You can also try this:
UPDATE table1
SET price=(SELECT price FROM table2 WHERE table1.id=table2.id);
You mean the ASCII ordinal value? Try type casting like this one:
int x = 'a';
You can do:
DataGridViewRow row = (DataGridViewRow)yourDataGridView.Rows[0].Clone();
row.Cells[0].Value = "XYZ";
row.Cells[1].Value = 50.2;
yourDataGridView.Rows.Add(row);
or:
DataGridViewRow row = (DataGridViewRow)yourDataGridView.Rows[0].Clone();
row.Cells["Column2"].Value = "XYZ";
row.Cells["Column6"].Value = 50.2;
yourDataGridView.Rows.Add(row);
Another way:
this.dataGridView1.Rows.Add("five", "six", "seven","eight");
this.dataGridView1.Rows.Insert(0, "one", "two", "three", "four");
From: http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.rows.aspx
It's been quite sometime since I asked this question. Now I understand it more clearly, I'm going to put a more complete answer to help others.
In Web API, it's very simple to remember how parameter binding is happening.
POST
simple types, Web API tries to bind it from the URL if you POST
complex type, Web API tries to bind it from the body of
the request (this uses a media-type
formatter).
If you want to bind a complex type from the URL, you'll use [FromUri]
in your action parameter. The limitation of this is down to how long your data going to be and if it exceeds the url character limit.
public IHttpActionResult Put([FromUri] ViewModel data) { ... }
If you want to bind a simple type from the request body, you'll use [FromBody] in your action parameter.
public IHttpActionResult Put([FromBody] string name) { ... }
as a side note, say you are making a PUT
request (just a string) to update something. If you decide not to append it to the URL and pass as a complex type with just one property in the model, then the data
parameter in jQuery ajax will look something like below. The object you pass to data parameter has only one property with empty property name.
var myName = 'ABC';
$.ajax({url:.., data: {'': myName}});
and your web api action will look something like below.
public IHttpActionResult Put([FromBody] string name){ ... }
This asp.net page explains it all. http://www.asp.net/web-api/overview/formats-and-model-binding/parameter-binding-in-aspnet-web-api
$array=array( 4 => 'apple', 7 => 'orange', 13 => 'plum' );
$firstValue = each($array)[1];
This is much more efficient than array_values()
because the each()
function does not copy the entire array.
For more info see http://www.php.net/manual/en/function.each.php
You can use the following example to store a query result in a variable using PL/pgSQL:
select * into demo from maintenanceactivitytrack ;
raise notice'p_maintenanceid:%',demo;
Try this...
<script type="text/javascript">
$(document).ready(function(){
$("#find").click(function(){
var username = $("#username").val();
$.ajax({
type: 'POST',
dataType: 'json',
url: 'includes/find.php',
data: 'username='+username,
success: function( data ) {
//in data you result will be available...
response = jQuery.parseJSON(data);
//further code..
},
error: function(xhr, status, error) {
alert(status);
},
dataType: 'text'
});
});
});
</script>
<form name="Find User" id="userform" class="invoform" method="post" />
<div id ="userdiv">
<p>Name (Lastname, firstname):</p>
</label>
<input type="text" name="username" id="username" class="inputfield" />
<input type="button" name="find" id="find" class="passwordsubmit" value="find" />
</div>
</form>
<div id="userinfo"><b>info will be listed here.</b></div>
I use standard HTML tags, like
<!---
your comment goes here
and here
-->
Note the triple dash. The advantage is that it works with pandoc when generating TeX or HTML output. More information is available on the pandoc-discuss group.
You can add super privilege using phpmyadmin
:
Go to PHPMYADMIN > privileges > Edit User > Under Administrator tab Click SUPER. > Go
If you want to do it through Console
, do like this:
mysql> GRANT SUPER ON *.* TO user@'localhost' IDENTIFIED BY 'password';
After executing above code, end it with:
mysql> FLUSH PRIVILEGES;
You should do in on *.*
because SUPER is not the privilege that applies just to one database, it's global.
Check my fork of LazyList. Basically, I improve the LazyList by delaying the call of the ImageView and create two methods:
I also improved the ImageLoader by implementing a singleton in this object.
Because input
's width
is controlled by it's size
attribute, this is how I initialize an input
width
according to its content:
<input type="text" class="form-list-item-name" [size]="myInput.value.length" #myInput>
The problem I was having with the rewrite is that some .htaccess files for Codeigniter, etc come with
RewriteBase /
Which doesn't seem to work in MAMP...at least for me.
My 2 cents on Excel 2016:
xls
file with Notepad++
DPB=
and replace it with DPx=
error 40230
)Python installation folder > Lib > idlelib > idle.pyw
send a shortcut to desktop.
From the desktop shortcut you can add it to taskbar too for quickaccess.
Hope this helps.
For Dot Net Core 3, Microsoft.Data.SqlClient should be used.
These code lines can help you quickly enable log setting in your magento site.
INSERT INTO `core_config_data` (`config_id`, `scope`, `scope_id`, `path`, `value`) VALUES
('', 'default', 0, 'dev/log/active', '1'),
('', 'default', 0, 'dev/log/file', 'system.log'),
('', 'default', 0, 'dev/log/exception_file', 'exception.log');
Then you can see them inside the folder: /var/log
under root installation.
Very good exaple. npt tipical with MAth in wwww....
https://www.java2novice.com/java-fundamentals/static-import/
public class MyStaticMembClass {
public static final int INCREMENT = 2;
public static int incrementNumber(int number){
return number+INCREMENT;
}
}
in onother file inlude
import static com.java2novice.stat.imp.pac1.MyStaticMembClass.*;
I encountered some weird behaviour that did not reflect the actual code base so after some time trying several solutions, my problem was solved by manually deleting everything under /var/cache/tomcat8/
This worked:
$("#theSelectId").prepend("<option value='' selected='selected'></option>");
Firebug Output:
<select id="theSelectId">
<option selected="selected" value=""/>
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
You could also use .prependTo
if you wanted to reverse the order:
?$("<option>", { value: '', selected: true }).prependTo("#theSelectId");???????????
Here's a working solution (2019): put this code inside your login logic;
GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(JSONObject json, GraphResponse response) {
// Application code
if (response.getError() != null) {
System.out.println("ERROR");
} else {
System.out.println("Success");
String jsonresult = String.valueOf(json);
System.out.println("JSON Result" + jsonresult);
String fbUserId = json.optString("id");
String fbUserFirstName = json.optString("name");
String fbUserEmail = json.optString("email");
//String fbUserProfilePics = "http://graph.facebook.com/" + fbUserId + "/picture?type=large";
Log.d("SignUpActivity", "Email: " + fbUserEmail + "\nName: " + fbUserFirstName + "\nID: " + fbUserId);
}
Log.d("SignUpActivity", response.toString());
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id,name,email,gender, birthday");
request.setParameters(parameters);
request.executeAsync();
}
@Override
public void onCancel() {
setResult(RESULT_CANCELED);
Toast.makeText(SignUpActivity.this, "Login Attempt Cancelled", Toast.LENGTH_SHORT).show();
}
@Override
public void onError(FacebookException error) {
Toast.makeText(SignUpActivity.this, "An Error Occurred", Toast.LENGTH_LONG).show();
error.printStackTrace();
}
});
This is what i do
function cutat($num, $tt){
if (mb_strlen($tt)>$num){
$tt=mb_substr($tt,0,$num-2).'...';
}
return $tt;
}
where $num stands for number of chars, and $tt the string for manipulation.
I ended up here looking to delete my node_modules
folders before doing a backup of my work in progress using rsync
. A key requirements is that the node_modules
folder can be nested, so you need the -prune
option.
First I ran this to visually verify the folders to be deleted:
find -type d -name node_modules -prune
Then I ran this to delete them all:
find -type d -name node_modules -prune -exec rm -rf {} \;
Thanks to pistache
SEARCH
does not return 0
if there is no match, it returns #VALUE!
. So you have to wrap calls to SEARCH
with IFERROR
.
For example...
=IF(IFERROR(SEARCH("cat", A1), 0), "cat", "none")
or
=IF(IFERROR(SEARCH("cat",A1),0),"cat",IF(IFERROR(SEARCH("22",A1),0),"22","none"))
Here, IFERROR
returns the value from SEARCH
when it works; the given value of 0
otherwise.
This works for me ...
public class ShadowImage extends Drawable {
Bitmap bm;
@Override
public void draw(Canvas canvas) {
Paint mShadow = new Paint();
Rect rect = new Rect(0,0,bm.getWidth(), bm.getHeight());
mShadow.setAntiAlias(true);
mShadow.setShadowLayer(5.5f, 4.0f, 4.0f, Color.BLACK);
canvas.drawRect(rect, mShadow);
canvas.drawBitmap(bm, 0.0f, 0.0f, null);
}
public ShadowImage(Bitmap bitmap) {
super();
this.bm = bitmap;
} ... }
You can do it like this,
<input type="text" name="name" value="<?php echo $name;?>" />
But seen as you've taken it straight from user input, you want to sanitize it first so that nothing nasty is put into the output of your page.
<input type="text" name="name" value="<?php echo htmlspecialchars($name);?>" />
I've just given TouchImageView a new update. It now includes Double Tap Zoom and Fling in addition to Panning and Pinch Zoom. The code below is very dated. You can check out the github project to get the latest code.
Place TouchImageView.java in your project. It can then be used the same as ImageView. Example:
TouchImageView img = (TouchImageView) findViewById(R.id.img);
If you are using TouchImageView in xml, then you must provide the full package name, because it is a custom view. Example:
<com.example.touch.TouchImageView
android:id="@+id/img”
android:layout_width="match_parent"
android:layout_height="match_parent" />
Note: I've removed my prior answer, which included some very old code and now link straight to the most updated code on github.
If you are interested in putting TouchImageView in a ViewPager, refer to this answer.
Check for spaces in your formula before the "=". example' =A1' instean '=A1'
The PID is stored in $$
.
Example: kill -9 $$
will kill the shell instance it is called from.
x(end+1) = newElem
is a bit more robust.
x = [x newElem]
will only work if x
is a row-vector, if it is a column vector x = [x; newElem]
should be used. x(end+1) = newElem
, however, works for both row- and column-vectors.
In general though, growing vectors should be avoided. If you do this a lot, it might bring your code down to a crawl. Think about it: growing an array involves allocating new space, copying everything over, adding the new element, and cleaning up the old mess...Quite a waste of time if you knew the correct size beforehand :)
// usage: log('inside coolFunc',this,arguments);
// http://paulirish.com/2009/log-a-lightweight-wrapper-for-consolelog/
window.log = function(){
log.history = log.history || []; // store logs to an array for reference
log.history.push(arguments);
if(this.console){
console.log( Array.prototype.slice.call(arguments) );
}
};
Using window.log will allow you to perform the same action as console.log, but it checks if the browser you are using has the ability to use console.log first, so as not to error out for compatibility reasons (IE 6, etc.).
As others have suggested, but wrapped in a function:
int char_to_digit(char c) {
return c - '0';
}
Now just use the function. If, down the line, you decide to use a different method, you just need to change the implementation (performance, charset differences, whatever), you wont need to change the callers.
This version assumes that c contains a char which represents a digit. You can check that before calling the function, using ctype.h's isdigit function.
SELECT * from games WHERE (lower(title) LIKE 'age of empires III');
The above query doesn't return any rows because you're looking for 'age of empires III' exact string which doesn't exists in any rows.
So in order to match with this string with different string which has 'age of empires'
as substring you need to use '%your string goes here%'
More on mysql string comparision
You need to try this
SELECT * from games WHERE (lower(title) LIKE '%age of empires III%');
In Like '%age of empires III%'
this will search for any matching substring in your rows, and it will show in results.
DecimalFormat decimalFormat = new DecimalFormat(".#");
String result = decimalFormat.format(12.763); // --> 12.7
Using a directive (since we are doing DOM manipulation here) the following is probably the closest to doing things the "angular way":
$scope.timeFilters = [
{'value':3600,'label':'1 hour'},
{'value':10800,'label':'3 hours'},
{'value':21600,'label':'6 hours'},
{'value':43200,'label':'12 hours'},
{'value':86400,'label':'24 hours'},
{'value':604800,'label':'1 week'}
]
angular.module('whatever', []).directive('filter',function(){
return{
restrict: 'A',
template: '<li ng-repeat="time in timeFilters" class="filterItem"><a ng-click="changeTimeFilter(time)">{{time.label}}</a></li>',
link: function linkFn(scope, lElement, attrs){
var menuContext = attrs.filter;
scope.changeTimeFilter = function(newTime){
scope.selectedtimefilter = newTime;
}
lElement.bind('click', function(cevent){
var currentSelection = angular.element(cevent.srcElement).parent();
var previousSelection = scope[menuContext];
if(previousSelection !== currentSelection){
if(previousSelection){
angular.element(previousSelection).removeClass('active')
}
scope[menuContext] = currentSelection;
scope.$apply(function(){
currentSelection.addClass('active');
})
}
})
}
}
})
Then your HTML would look like:
<ul class="dropdown-menu" filter="times"></ul>
I got an error in Eclipse Mars version as "Build path specifies execution environment J2SE-1.5. There are no JREs installed in the workspace that are strictly compatible with this environment.
To resolve this issue, please do the following steps, "Right click on Project Choose Build path Choose Configure Build path Choose Libraries tab Select JRE System Library and click on Edit button Choose workspace default JRE and Finish
Problem will be resolved.
HTML
<span id="spanTest" data-value="50">test</span>
JS
$(this).data().value;
or
$("span#spanTest").data().value;
ANS : 50
Works for me!
Do nothing to the browser. CORS is supported by default on all modern browsers (and since Firefox 3.5).
The server being accessed by JavaScript has to give the site hosting the HTML document in which the JS is running permission via CORS HTTP response headers.
security.fileuri.strict_origin_policy
is used to give JS in local HTML documents access to your entire hard disk. Don't set it to false
as it makes you vulnerable to attacks from downloaded HTML documents (including email attachments).
Here is how I would do it in C++
size_t size = 500;
char* dynamicAllocatedString = new char[ size ];
Use same principal for any struct or c++ class.
To prevent the script from failing when the script file resides on a non system drive (c:) and in a directory with spaces.
Batch_Script_Run_As_Admin.cmd
@echo off
if _%1_==_payload_ goto :payload
:getadmin
echo %~nx0: elevating self
set vbs=%temp%\getadmin.vbs
echo Set UAC = CreateObject^("Shell.Application"^) >> "%vbs%"
echo UAC.ShellExecute "%~s0", "payload %~sdp0 %*", "", "runas", 1 >> "%vbs%"
"%temp%\getadmin.vbs"
del "%temp%\getadmin.vbs"
goto :eof
:payload
::ENTER YOUR CODE BELOW::
::END OF YOUR CODE::
echo.
echo...Script Complete....
echo.
pause
If you want to prompt the user to select a file, then read its contents:
// read the contents of a file input
const readInputFile = (inputElement, callback) => {
const reader = new FileReader();
reader.onload = () => {
callback(reader.result)
};
reader.readAsText(inputElement.files[0]);
};
// create a file input and destroy it after reading it
export const openFile = (callback) => {
var el = document.createElement('input');
el.setAttribute('type', 'file');
el.style.display = 'none';
document.body.appendChild(el);
el.onchange = () => {readInputFile(el, (data) => {
callback(data)
document.body.removeChild(el);
})}
el.click();
}
Usage:
// prompt the user to select a file and read it
openFile(data => {
console.log(data)
})
It's catching on because it's the best tool around for controlling complexity.
See:
- slides 109-116 of Simon Peyton-Jones talk "A Taste of Haskell"
- "The Next Mainstream Programming Language: A Game Developer's Perspective" by Tim Sweeney
The application is in use 24 hours a day. Your maintenance / update window is 2 hours every month, how do you plan to minimise disruption?
It also changes what pydoc will show:
module1.py
a = "A"
b = "B"
c = "C"
module2.py
__all__ = ['a', 'b']
a = "A"
b = "B"
c = "C"
$ pydoc module1
Help on module module1: NAME module1 FILE module1.py DATA a = 'A' b = 'B' c = 'C'
$ pydoc module2
Help on module module2: NAME module2 FILE module2.py DATA __all__ = ['a', 'b'] a = 'A' b = 'B'
I declare __all__
in all my modules, as well as underscore internal details, these really help when using things you've never used before in live interpreter sessions.
I was also facing the same issue But my issue was due to wrong credentials stored in my keyChain. So I solved by removing my old credentials from my keychain.
The value of 0xDEADBEEF has three practical benefits, mostly for older systems. Old assembler/C hacks, like me, would use it to fill unallocated memory to coax out memory issues. Also, it's a pun of the slang term "dead meat". The programmer is dead meat if DEADBEEF winds up in his pointers. I congratulate the guy who first thought of using the value DEADBEEF. It's clever in many ways.
As for practical reasons, firstly, it's more noticeable in a hex memory dump because it actually spells words as opposed to random hex values.
Secondly, if the value winds up in a pointer, it's more likely to induce a memory out-of-range fault. An address of DEADBEEF was out of the address range of systems (we're talking last century systems now) regardless of the system's endian.
Thirdly, it is more likely to induce a fault on systems that require even boundary pointer values for accessing 16/32/64-bit data. The value is more likely to fault because both of the 16 bit values (DEAD, BEEF) are odd.
As a side-note...this can also happen when there is a problem with (internal) data-mapping from SQL Objects.
For instance...
I created a SQL Scalar Function
that accidentally returned a VARCHAR
...and then...used it to generate a column in a VIEW
. The VIEW
was correctly mapped in the DbContext
...so Linq was calling it just fine. However, the Entity expected DateTime? and the VIEW
was returning String.
Which ODDLY throws...
"There is already an open DataReader associated with this Command which must be closed first"
It was hard to figure out...but after I corrected the return parameters...all was well
I ran into the same issue and found another way to do this. It worked for in my case as it was a relatively small application.
First, the user will a click button in the component which needs to be printed. This will set a flag that can be accessed by the app component. Like so
.html file
<button mat-button (click)="printMode()">Print Preview</button>
.ts file
printMode() {
this.utilities.printMode = true;
}
In the html of the app component, we hide everything except the router-outlet. Something like below
<div class="container">
<app-header *ngIf="!utilities.printMode"></app-header>
<mat-sidenav-container>
<mat-sidenav *ngIf="=!utilities.printMode">
<app-sidebar></app-sidebar>
</mat-sidenav>
<mat-sidenav-content>
<router-outlet></router-outlet>
</mat-sidenav-content>
</mat-sidenav-container>
</div>
With similar ngIf conidtions, we can also adjust the html template of the component to only show or hide things in printMode. So that the user will see only what needs to get printed when print preview is clicked.
We can now simply print or go back to normal mode with the below code
.html file
<button mat-button class="doNotPrint" (click)="print()">Print</button>
<button mat-button class="doNotPrint" (click)="endPrint()">Close</button>
.ts file
print() {
window.print();
}
endPrint() {
this.utilities.printMode = false;
}
.css file (so that the print and close button's don't get printed)
@media print{
.doNotPrint{display:none !important;}
}
I found this maven
repo where you could download from directly a zip
file containing all the jars you need.
The solution I prefer is using Maven
, it is easy and you don't have to download each jar
alone. You can do it with the following steps:
Create an empty folder anywhere with any name you prefer, for example spring-source
Create a new file named pom.xml
Copy the xml below into this file
Open the spring-source
folder in your console
Run mvn install
After download finished, you'll find spring jars in /spring-source/target/dependencies
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>spring-source-download</groupId>
<artifactId>SpringDependencies</artifactId>
<version>1.0</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.4.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.8</version>
<executions>
<execution>
<id>download-dependencies</id>
<phase>generate-resources</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/dependencies</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
Also, if you need to download any other spring project, just copy the dependency
configuration from its corresponding web page.
For example, if you want to download Spring Web Flow
jars, go to its web page, and add its dependency
configuration to the pom.xml
dependencies
, then run mvn install
again.
<dependency>
<groupId>org.springframework.webflow</groupId>
<artifactId>spring-webflow</artifactId>
<version>2.3.2.RELEASE</version>
</dependency>
Monolithic kernel design is much older than the microkernel idea, which appeared at the end of the 1980's.
Unix and Linux kernels are monolithic, while QNX, L4 and Hurd are microkernels. Mach was initially a microkernel (not Mac OS X), but later converted into a hybrid kernel. Minix (before version 3) wasn't a pure microkernel because device drivers were compiled as part of the kernel.
Monolithic kernels are usually faster than microkernels. The first microkernel Mach was 50% slower than most monolithic kernels, while later ones like L4 were only 2% or 4% slower than the monolithic designs.
Monolithic kernels are big in size, while microkernels are small in size - they usually fit into the processor's L1 cache (first generation microkernels).
In monolithic kernels, the device drivers reside in the kernel space while in the microkernels the device drivers are user-space.
Since monolithic kernels' device drivers reside in the kernel space, monolithic kernels are less secure than microkernels, and failures (exceptions) in the drivers may lead to crashes (displayed as BSODs in Windows). Microkernels are more secure than monolithic kernels, hence more often used in military devices.
Monolithic kernels use signals and sockets to implement inter-process communication (IPC), microkernels use message queues. 1st gen microkernels didn't implement IPC well and were slow on context switches - that's what caused their poor performance.
Adding a new feature to a monolithic system means recompiling the whole kernel or the corresponding kernel module (for modular monolithic kernels), whereas with microkernels you can add new features or patches without recompiling.
I see this has been answered, but it seems like you could avoid all of this 'remapping' of the enter key by simply hooking your validation into the AcceptButton on a form. ie. you have 3 textboxes (txtA,txtB,txtC) and an 'OK' button set to be AcceptButton (and TabOrder set properly). So, if in txtA and you hit enter, if the data is invalid, your focus will stay in txtA, but if it is valid, assuming the other txts need input, validation will just put you into the next txt that needs valid input thus simulating TAB behaviour... once all txts have valid input, pressing enter will fire a succsessful validation and close form (or whatever...) Make sense?
You could use the ArrayUtils.subarray in apache commons. Not perfect but a bit more intuitive than System.arraycopy.
The downside is that it does introduce another dependency into your code.
In Windows 10 with Git
Remove/update related Credentials stored in Windows Credentials in >>Control Panel\All Control Panel Items\Credential Manager
With the xhr2 library you can globally overwrite XMLHttpRequest
from your JS code. This allows you to use external libraries in node, that were intended to be run from browsers / assume they are run in a browser.
global.XMLHttpRequest = require('xhr2');
After making the shortcut as you have, set the following in Properties:
Target:
%comspec% /k "data\run.bat"
- Drop the
/k
if you don't want the prompt to stay open after you've run it.Start In:
%cd%\data
This is a safer C way than atoi()
const char* str = "123";
int i;
if(sscanf(str, "%d", &i) == EOF )
{
/* error */
}
C++ with standard library stringstream: (thanks CMS )
int str2int (const string &str) {
stringstream ss(str);
int num;
if((ss >> num).fail())
{
//ERROR
}
return num;
}
With boost library: (thanks jk)
#include <boost/lexical_cast.hpp>
#include <string>
try
{
std::string str = "123";
int number = boost::lexical_cast< int >( str );
}
catch( const boost::bad_lexical_cast & )
{
// Error
}
Edit: Fixed the stringstream version so that it handles errors. (thanks to CMS's and jk's comment on original post)
Here's a simple way
for (i in 1:10) {
skip_to_next <- FALSE
# Note that print(b) fails since b doesn't exist
tryCatch(print(b), error = function(e) { skip_to_next <<- TRUE})
if(skip_to_next) { next }
}
Note that the loop completes all 10 iterations, despite errors. You can obviously replace print(b)
with any code you want. You can also wrap many lines of code in {
and }
if you have more than one line of code inside the tryCatch
List of Integer
.
List<Integer> list = new ArrayList<>();
int x = 5;
list.add(x);
This is probably more verbose than you want, but you're asking for a slightly complex operation so actual code might be involved (the horror).
My recommendation, with zipObject
that's pretty logical:
_.zipObject(_.map(params, 'name'), _.map(params, 'input'));
Another option, more hacky, using fromPairs
:
_.fromPairs(_.map(params, function(val) { return [val['name'], val['input']));
The anonymous function shows the hackiness -- I don't believe JS guarantees order of elements in object iteration, so callling .values()
won't do.
put a int
infront of the all the voxelCoord
's...Like this below :
patch = numpyImage [int(voxelCoord[0]),int(voxelCoord[1])- int(voxelWidth/2):int(voxelCoord[1])+int(voxelWidth/2),int(voxelCoord[2])-int(voxelWidth/2):int(voxelCoord[2])+int(voxelWidth/2)]
I had this question, but with a twist - I was trying to log different content to different files. I had information for a LowLevel debug log, and a HighLevel user log. I wanted the LowLevel to go to only one file, and the HighLevel to go to both a file, and a syslogd.
My solution was to configure the 3 appenders, and then setup the logging like this:
log4j.threshold=ALL
log4j.rootLogger=,LowLogger
log4j.logger.HighLevel=ALL,Syslog,HighLogger
log4j.additivity.HighLevel=false
The part that was difficult for me to figure out was that the 'log4j.logger' could have multiple appenders listed. I was trying to do it one line at a time.
Hope this helps someone at some point!
When I wanted to change namespace and the solution name I did as follows:
1) changed the namespace by selecting it and renaming it and I did the same with solution name
2) clicked on the light bulb and renamed all the instances of old namespace
3) removed all the projects from the solution
4) closed the visual studio
5) renamed all the projects in windows explorer
6) opened visual studio and added all the projects again
7) rename namespaces in all projects in their properties
8) removed bin folder (from all projects)
9) build the project again
That worked for me without any problems and my project had as well source control. All was fine after pushing those changes to the remote.
While Tats_innit's answer has a nice touch to it, I had to do it a bit differently since I have more than one progress bar on the page.
here's my solution:
JSfiddle: http://jsfiddle.net/vacNJ/
HTML (example):
<div class="progress progress-success">
<div class="bar" style="float: left; width: 0%; " data-percentage="60"></div>
</div>
<div class="progress progress-success">
<div class="bar" style="float: left; width: 0%; " data-percentage="50"></div>
</div>
<div class="progress progress-success">
<div class="bar" style="float: left; width: 0%; " data-percentage="40"></div>
</div>
?
JavaScript:
setTimeout(function(){
$('.progress .bar').each(function() {
var me = $(this);
var perc = me.attr("data-percentage");
var current_perc = 0;
var progress = setInterval(function() {
if (current_perc>=perc) {
clearInterval(progress);
} else {
current_perc +=1;
me.css('width', (current_perc)+'%');
}
me.text((current_perc)+'%');
}, 50);
});
},300);
@Tats_innit: Using setInterval() to dynamically recalc the progress is a nice solution, thx mate! ;)
EDIT:
A friend of mine wrote a nice jquery plugin for custom twitter bootstrap progress bars. Here's a demo: http://minddust.github.com/bootstrap-progressbar/
Here's the Github repo: https://github.com/minddust/bootstrap-progressbar
from bs4 import BeautifulSoup
from selenium import webdriver
driver = webdriver.Chrome()
html_source_code = driver.execute_script("return document.body.innerHTML;")
html_soup: BeautifulSoup = BeautifulSoup(html_source_code, 'html.parser')
Now you can apply BeautifulSoup function to extract data...
Delete your debug certificate under ~/.android/debug.keystore
on Linux and Mac OS X; the directory is something like %USERPROFILE%/.android
on Windows.
The Eclipse plugin should then generate a new certificate when you next try to build a debug package. You may need to clean and then build to generate the certificate.
A slight change to the code above as it does not actually work correctly.
It should be as follows...
from glob import glob
with open('main.csv', 'a') as singleFile:
for csv in glob('*.csv'):
if csv == 'main.csv':
pass
else:
for line in open(csv, 'r'):
singleFile.write(line)
Bitmap yourBitmap;
Bitmap resized = Bitmap.createScaledBitmap(yourBitmap, newWidth, newHeight, true);
or:
resized = Bitmap.createScaledBitmap(yourBitmap,(int)(yourBitmap.getWidth()*0.8), (int)(yourBitmap.getHeight()*0.8), true);
This was the original answer. It does work, but has a problem. What if AddPassword
fails? The user is left without a password.
The original answer: we can use three lines of code:
UserManager<IdentityUser> userManager =
new UserManager<IdentityUser>(new UserStore<IdentityUser>());
userManager.RemovePassword(userId);
userManager.AddPassword(userId, newPassword);
See also: http://msdn.microsoft.com/en-us/library/dn457095(v=vs.111).aspx
It's probably better to use the answer that EdwardBrey proposed and then DanielWright later elaborated with a code sample.
I don't know of a platform independent way of doing it, but under Windows, if you use the msvcrt module, you can use its getch function:
import msvcrt
c = msvcrt.getch()
print 'you entered', c
mscvcrt also includes the non-blocking kbhit() function to see if a key was pressed without waiting (not sure if there's a corresponding curses function). Under UNIX, there is the curses package, but not sure if you can use it without using it for all of the screen output. This code works under UNIX:
import curses
stdscr = curses.initscr()
c = stdscr.getch()
print 'you entered', chr(c)
curses.endwin()
Note that curses.getch() returns the ordinal of the key pressed so to make it have the same output I had to cast it.
'continue' is used within looping structures to skip the rest of the current loop iteration and continue execution at the condition evaluation and then the beginning of the next iteration.
'break' ends execution of the current for, foreach, while, do-while or switch structure.
break accepts an optional numeric argument which tells it how many nested enclosing structures are to be broken out of.
Check out the following links:
http://www.php.net/manual/en/control-structures.break.php
http://www.php.net/manual/en/control-structures.continue.php
Hope it helps..
In java ,there is a rigorous way to convert a long to int
not only lnog can convert into int,any type of class extends Number can convert to other Number type in general,here I will show you how to convert a long to int,other type vice versa.
Long l = 1234567L;
int i = org.springframework.util.NumberUtils.convertNumberToTargetClass(l, Integer.class);
This extension method will obtain a string representation of an enum value using its XmlEnumAttribute. If no XmlEnumAttribute is present, it falls back to enum.ToString().
public static string ToStringUsingXmlEnumAttribute<T>(this T enumValue)
where T: struct, IConvertible
{
if (!typeof(T).IsEnum)
{
throw new ArgumentException("T must be an enumerated type");
}
string name;
var type = typeof(T);
var memInfo = type.GetMember(enumValue.ToString());
if (memInfo.Length == 1)
{
var attributes = memInfo[0].GetCustomAttributes(typeof(System.Xml.Serialization.XmlEnumAttribute), false);
if (attributes.Length == 1)
{
name = ((System.Xml.Serialization.XmlEnumAttribute)attributes[0]).Name;
}
else
{
name = enumValue.ToString();
}
}
else
{
name = enumValue.ToString();
}
return name;
}
A common issue often overlooked is also that there must be NO other code or extra spacing before the session_start() command.
I've had this issue before where I had a blank line before session_start() which caused it not to work properly.
Just wanted to add -- apparently this can also be caused by installing Instant Client for 10, then realizing you want the full install and installing it again in a parallel directory. I don't know why this broke it.
For some - possibly valid - reason the url was encoded twice. %25
is the urlencoded %
sign. So the original url looked like:
http://server.com/my path/
Then it got urlencoded once:
http://server.com/my%20path/
and twice:
http://server.com/my%2520path/
So you should do no urlencoding - in your case - as other components seems to to that already for you. Use simply a space
CREATE A FUNCTION:
CREATE DEFINER=`root`@`localhost` FUNCTION `UC_FIRST`(`oldWord` VARCHAR(255))
RETURNS varchar(255) CHARSET utf8
RETURN CONCAT( UCASE( LEFT(oldWord, 1)), LCASE(SUBSTRING(oldWord, 2)))
USE THE FUNCTION
UPDATE tbl_name SET col_name = UC_FIRST(col_name);
My problem is possibly due to the hash got wrongly generated by the openssl itself, if anyone is facing similar problem using the method provided by the facebook android guide itself.
One way to deal with this is :
keytool -exportcert -keystore path-to-debug-or-production-keystore -list -v
http://tomeko.net/online_tools/hex_to_base64.php
credit :
https://github.com/facebook/react-native-fbsdk/issues/424#issuecomment-469047955
Most of the answers for this question use the the Canvas
drawing method or drawing cache method. However, the View.setDrawingCache()
method is deprecated in API 28. Currently the recommended API for making screenshots is the PixelCopy
class available from API 24 (but the methods which accept Window
parameter are available from API 26 == Android 8.0 Oreo). Here is a sample Kotlin code for retrieving a Bitmap
:
@RequiresApi(Build.VERSION_CODES.O)
fun saveScreenshot(view: View) {
val window = (view.context as Activity).window
if (window != null) {
val bitmap = Bitmap.createBitmap(view.width, view.height, Bitmap.Config.ARGB_8888)
val locationOfViewInWindow = IntArray(2)
view.getLocationInWindow(locationOfViewInWindow)
try {
PixelCopy.request(window, Rect(locationOfViewInWindow[0], locationOfViewInWindow[1], locationOfViewInWindow[0] + view.width, locationOfViewInWindow[1] + view.height), bitmap, { copyResult ->
if (copyResult == PixelCopy.SUCCESS) {
saveBitmap(bitmap)
}
// possible to handle other result codes ...
}, Handler())
} catch (e: IllegalArgumentException) {
// PixelCopy may throw IllegalArgumentException, make sure to handle it
}
}
}
Extending Piotr's answer, if you also need a way to figure what to put in requirements.in
, you can first use pip-chill
to find the minimal set of required packages you have. By combining these tools, you can show the dependency reason why each package is installed. The full cycle looks like this:
$ python3 -m venv venv
$ . venv/bin/activate
(venv)$ pip install --upgrade pip
(venv)$ pip install pip-tools pip-chill
(venv)$ pip-chill --no-version > requirements.in
(venv)$ pip-compile requirements.in
(venv)$ pip-sync
If you use a Datetime format see http://php.net/manual/en/datetime.format.php
You can do this :
$date = new \DateTime();
echo date_format($date, 'Y-m-d H:i:s');
#output: 2012-03-24 17:45:12
echo date_format($date, 'G:ia');
#output: 05:45pm
You will see the same error if you are trying to install an apk that was built using
compileSdkVersion "android-L"
Even for devices running the final version of Android 5.0. Simply change this to
compileSdkVersion 21
You will get all the class in below array
event.target.classList
Same happened to me, I had to go into Packages and re-enable Tabs and Tree-View (both part of core).
I personally use an about:blank
src
and deal with the broken image icon by setting the opacity of the img
element to 0
.
Another way to find it quickly via the GUI on any windows system:
create a text file, type a word or two (or random text) in it, and save it.
Right-click on the file to show Properties.
"Size on disk" = allocation unit.
from datetime import datetime
date_string = f'{datetime.now():%Y-%m-%d %H:%M:%S%z}'
This is what I finally could do for installing psych package in R-3.4.1 when I got the same warning
1:Googled for that package.
2:downloaded it manually having tar.gz extension
3:Chose the option "Package Archive File (.zip;.tar.gz)" for install packages in R
4:browsed locally to the place where it was downloaded and clicked install
You may get a warning: dependencies 'xyz' not available for the package ,then first install those from the repository and then do steps 3-4 .
This is an issue with the jdbc Driver version. I had this issue when I was using mysql-connector-java-commercial-5.0.3-bin.jar but when I changed to a later driver version mysql-connector-java-5.1.22.jar, the issue was fixed.
No, find() method is not a member of std::list
.
Instead, use std::find
from <algorithm>
std :: list < int > l;
std :: list < int > :: iterator pos;
l.push_back(1);
l.push_back(2);
l.push_back(3);
l.push_back(4);
l.push_back(5);
l.push_back(6);
int elem = 3;
pos = find(l.begin() , l.end() , elem);
if(pos != l.end() )
std :: cout << "Element is present. "<<std :: endl;
else
std :: cout << "Element is not present. "<<std :: endl;
This was done using Toad for Oracle 12.8.0.49
ALTER TABLE SCHEMA.TABLENAME
MODIFY (COLUMNNAME NEWDATATYPE(LENGTH)) ;
For example,
ALTER TABLE PAYROLL.EMPLOYEES
MODIFY (JOBTITLE VARCHAR2(12)) ;
The selected answer would work for as long as you know the key itself that you want to delete but if it should be truly dynamic you would need to use the [] notation instead of the dot notation.
For example:
var keyToDelete = "key1";
var myObj = {"test": {"key1": "value", "key2": "value"}}
//that will not work.
delete myObj.test.keyToDelete
instead you would need to use:
delete myObj.test[keyToDelete];
Substitute the dot notation with [] notation for those values that you want evaluated before being deleted.
Here is the same style as in large datasets:
x = df[:5]
y = pd.DataFrame([['...']*df.shape[1]], columns=df.columns, index=['...'])
z = df[-5:]
frame = [x, y, z]
result = pd.concat(frame)
print(result)
Output:
date temp
0 1981-01-01 00:00:00 20.7
1 1981-01-02 00:00:00 17.9
2 1981-01-03 00:00:00 18.8
3 1981-01-04 00:00:00 14.6
4 1981-01-05 00:00:00 15.8
... ... ...
3645 1990-12-27 00:00:00 14
3646 1990-12-28 00:00:00 13.6
3647 1990-12-29 00:00:00 13.5
3648 1990-12-30 00:00:00 15.7
3649 1990-12-31 00:00:00 13
Unions are great. One clever use of unions I've seen is to use them when defining an event. For example, you might decide that an event is 32 bits.
Now, within that 32 bits, you might like to designate the first 8 bits as for an identifier of the sender of the event... Sometimes you deal with the event as a whole, sometimes you dissect it and compare it's components. unions give you the flexibility to do both.
union Event { unsigned long eventCode; unsigned char eventParts[4]; };
According to some comments on Super User it still works :) It just should be copied back to the plugins folder (if it's in the disabled folder) or downloaded from Plugins Central. I have downloaded it a few minutes ago and succeeded in using it.
Of course, be warned: this plugin COULD be unstable in some situations - that's why it was disabled.
I use this to clean up all files ending in ".orig":
function git-clean-orig {
git status -su | grep -e"\.orig$" | cut -f2 -d" " | xargs rm -r
}
If you are a scaredy-cat :) you could leave the last part off just to list them (or leave off the -r
if you want to approve each delete):
function git-show-orig {
git status -su | grep -e"\.orig$" | cut -f2 -d" "
}
You can use:
SELECT IDENT_CURRENT('tablename')
to access the latest identity for a perticular table.
e.g. Considering following code:
INSERT INTO dbo.MyTable(columns....) VALUES(..........)
INSERT INTO dbo.YourTable(columns....) VALUES(..........)
SELECT IDENT_CURRENT('MyTable')
SELECT IDENT_CURRENT('YourTable')
This would yield to correct value for corresponding tables.
It returns the last IDENTITY
value produced in a table, regardless of the connection that created the value, and regardless of the scope of the statement that produced the value.
IDENT_CURRENT
is not limited by scope and session; it is limited to a specified table. IDENT_CURRENT
returns the identity value generated for a specific table in any session and any scope.
Boost has a macro that will do this for you.
This is very simple you are trying to convert an integer to a list object !!! of course it will fail and it should ...
To demonstrate/prove this to you by using the example you provided ...just use type function for each case as below and the results will speak for itself !
>>> type(cow)
<class 'range'>
>>>
>>> type(cow[0])
<class 'int'>
>>>
>>> type(0)
<class 'int'>
>>>
>>> >>> list(0)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'int' object is not iterable
>>>
Use the Tortoise SVN copy functionality to revert commited changes:
Hope that helps
Based on the official documentation:
dummies = pd.get_dummies(df['Category']).rename(columns=lambda x: 'Category_' + str(x))
df = pd.concat([df, dummies], axis=1)
df = df.drop(['Category'], inplace=True, axis=1)
There is also a nice post in the FastML blog.
As others have stated, regular (traditional) functions use this
from the object that called the function, (e.g. a button that was clicked). Instead, arrow functions use this
from the object that defines the function.
Consider two almost identical functions:
regular = function() {
' Identical Part Here;
}
arrow = () => {
' Identical Part Here;
}
The snippet below demonstrates the fundamental difference between what this
represents for each function. The regular function outputs [object HTMLButtonElement]
whereas the arrow function outputs [object Window]
.
<html>_x000D_
<button id="btn1">Regular: `this` comes from "this button"</button>_x000D_
<br><br>_x000D_
<button id="btn2">Arrow: `this` comes from object that defines the function</button>_x000D_
<p id="res"/>_x000D_
_x000D_
<script>_x000D_
regular = function() {_x000D_
document.getElementById("res").innerHTML = this;_x000D_
}_x000D_
_x000D_
arrow = () => {_x000D_
document.getElementById("res").innerHTML = this;_x000D_
}_x000D_
_x000D_
document.getElementById("btn1").addEventListener("click", regular);_x000D_
document.getElementById("btn2").addEventListener("click", arrow);_x000D_
</script>_x000D_
</html>
_x000D_
You need to update the package list in your Ubuntu:
$ sudo apt-get update
$ sudo apt-get install <package_name>
Swift's String
type does not provide a characterAtIndex
method because there are several ways a Unicode string could be encoded. Are you going with UTF8, UTF16, or something else?
You can access the CodeUnit
collections by retrieving the String.utf8
and String.utf16
properties. You can also access the UnicodeScalar
collection by retrieving the String.unicodeScalars
property.
In the spirit of NSString
's implementation, I'm returning a unichar
type.
extension String
{
func characterAtIndex(index:Int) -> unichar
{
return self.utf16[index]
}
// Allows us to use String[index] notation
subscript(index:Int) -> unichar
{
return characterAtIndex(index)
}
}
let text = "Hello Swift!"
let firstChar = text[0]
You can do this simply with a function. For example:
def script():
# program code here...
restart = raw_input("Would you like to restart this program?")
if restart == "yes" or restart == "y":
script()
if restart == "n" or restart == "no":
print "Script terminating. Goodbye."
script()
Of course you can change a lot of things here. What is said, what the script will accept as a valid input, the variable and function names. You can simply nest the entire program in a user-defined function (Of course you must give everything inside an extra indent) and have it restart at anytime using this line of code: myfunctionname()
. More on this here.
(\w+)
Assuming you are using PCRE or something similar:
Above screenshot taken from this live example: http://regex101.com/r/cU5lC2
(\w+)
I'll be using the phpsh interactive shell on Ubuntu 12.10 to demonstrate the PCRE regex engine through the method known as preg_match
Start phpsh, put some content into a variable, match on word.
el@apollo:~/foo$ phpsh
php> $content1 = 'badger'
php> $content2 = '1234'
php> $content3 = '$%^&'
php> echo preg_match('(\w+)', $content1);
1
php> echo preg_match('(\w+)', $content2);
1
php> echo preg_match('(\w+)', $content3);
0
The preg_match method used the PCRE engine within the PHP language to analyze variables: $content1
, $content2
and $content3
with the (\w)+
pattern.
$content1 and $content2 contain at least one word, $content3 does not.
(dart|fart)
el@apollo:~/foo$ phpsh
php> $gun1 = 'dart gun';
php> $gun2 = 'fart gun';
php> $gun3 = 'farty gun';
php> $gun4 = 'unicorn gun';
php> echo preg_match('(dart|fart)', $gun1);
1
php> echo preg_match('(dart|fart)', $gun2);
1
php> echo preg_match('(dart|fart)', $gun3);
1
php> echo preg_match('(dart|fart)', $gun4);
0
variables gun1 and gun2 contain the string dart or fart. gun4 does not. However it may be a problem that looking for word fart
matches farty
. To fix this, enforce word boundaries in regex.
el@apollo:~/foo$ phpsh
php> $gun1 = 'dart gun';
php> $gun2 = 'fart gun';
php> $gun3 = 'farty gun';
php> $gun4 = 'unicorn gun';
php> echo preg_match('(\bdart\b|\bfart\b)', $gun1);
1
php> echo preg_match('(\bdart\b|\bfart\b)', $gun2);
1
php> echo preg_match('(\bdart\b|\bfart\b)', $gun3);
0
php> echo preg_match('(\bdart\b|\bfart\b)', $gun4);
0
So it's the same as the previous example except that the word fart
with a \b
word boundary does not exist in the content: farty
.
Georg Schölly's categories are very nice. However, for NSMutableArray, using NSUIntegers for the indices results in a crash when the array is empty. The correct code is:
@implementation NSMutableArray (Reverse)
- (void)reverse {
NSInteger i = 0;
NSInteger j = [self count] - 1;
while (i < j) {
[self exchangeObjectAtIndex:i
withObjectAtIndex:j];
i++;
j--;
}
}
@end
ERROR: JAVA_HOME is set to an invalid directory. JAVA_HOME = "E:\Sun\SDK\jdk\bin" Please set the JAVA_HOME variable in your environment to match the location of your Java installation
JAVA_HOME
should be set to E:\Sun\SDK\jdk
.
PATH
should be set to include %JAVA_HOME%\bin
.
I'm using Tomcat through XAMPP which might have been the cause of this problem. When I changed appBase="C:/Java Project/"
, for example, I kept getting "This localhost page can't be found"
in the browser.
I had to add a folder called ROOT inside the Java Project folder and then it worked. Any files you're working on have to be inside this ROOT folder but you need to leave appBase="C:/Java Project/"
as changing it to appBase="C:/Java Project/ROOT"
will cause "This localhost page can't be found"
to be displayed again.
Maybe needing the ROOT folder is obvious to more experienced Java developers but it wasn't for me so hopefully this helps anyone else encountering the same problem.
There is no event raised when a class changes. The alternative is to manually raise an event when you programatically change the class:
$someElement.on('event', function() {
$('#myDiv').addClass('submission-ok').trigger('classChange');
});
// in another js file, far, far away
$('#myDiv').on('classChange', function() {
// do stuff
});
UPDATE
This question seems to be gathering some visitors, so here is an update with an approach which can be used without having to modify existing code using the new MutationObserver
:
var $div = $("#foo");_x000D_
var observer = new MutationObserver(function(mutations) {_x000D_
mutations.forEach(function(mutation) {_x000D_
if (mutation.attributeName === "class") {_x000D_
var attributeValue = $(mutation.target).prop(mutation.attributeName);_x000D_
console.log("Class attribute changed to:", attributeValue);_x000D_
}_x000D_
});_x000D_
});_x000D_
observer.observe($div[0], {_x000D_
attributes: true_x000D_
});_x000D_
_x000D_
$div.addClass('red');
_x000D_
.red { color: #C00; }
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div id="foo" class="bar">#foo.bar</div>
_x000D_
Be aware that the MutationObserver
is only available for newer browsers, specifically Chrome 26, FF 14, IE 11, Opera 15 and Safari 6. See MDN for more details. If you need to support legacy browsers then you will need to use the method I outlined in my first example.
You need to give the array a size:
public static void main(String args[])
{
int array[] = new int[4];
int number = 5, i = 0,j = 0;
while (i<4){
array[i]=number;
i=i+1;
}
while (j<4){
System.out.println(array[j]);
j++;
}
}
The real problem of why you are getting the error is not that there is anything wrong with your code: you can use either iloc
, loc
, or apply
, or *=
, another of them could have worked.
The real problem that you have is due to how you created the df DataFrame. Most likely you created your df as a slice of another DataFrame without using .copy().
The correct way to create your df as a slice of another DataFrame is df = original_df.loc[some slicing].copy()
.
The problem is already stated in the error message you got " SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead"
You will get the same message in the most current version of pandas too.
Whenever you receive this kind of error message, you should always check how you created your DataFrame. Chances are you forgot the .copy()
As others answered you, if you are creating a new project, you can separate frontend and backend and use any django rest plugin to create rest api for your frontend application. This is in the ideal world.
If you have a project with the django templating already in place, then you must load your react dom render in the page you want to load the application. In my case I had already django-pipeline and I just added the browserify extension. (https://github.com/j0hnsmith/django-pipeline-browserify)
As in the example, I loaded the app using django-pipeline:
PIPELINE = {
# ...
'javascript':{
'browserify': {
'source_filenames' : (
'js/entry-point.browserify.js',
),
'output_filename': 'js/entry-point.js',
},
}
}
Your "entry-point.browserify.js" can be an ES6 file that loads your react app in the template:
import React from 'react';
import ReactDOM from 'react-dom';
import App from './components/app.js';
import "babel-polyfill";
import { Provider } from 'react-redux';
import { createStore, applyMiddleware } from 'redux';
import promise from 'redux-promise';
import reducers from './reducers/index.js';
const createStoreWithMiddleware = applyMiddleware(
promise
)(createStore);
ReactDOM.render(
<Provider store={createStoreWithMiddleware(reducers)}>
<App/>
</Provider>
, document.getElementById('my-react-app')
);
In your django template, you can now load your app easily:
{% load pipeline %}
{% comment %}
`browserify` is a PIPELINE key setup in the settings for django
pipeline. See the example above
{% endcomment %}
{% javascript 'browserify' %}
{% comment %}
the app will be loaded here thanks to the entry point you created
in PIPELINE settings. The key is the `entry-point.browserify.js`
responsable to inject with ReactDOM.render() you react app in the div
below
{% endcomment %}
<div id="my-react-app"></div>
The advantage of using django-pipeline is that statics get processed during the collectstatic
.
You can use -[UIButton setTitleColor:forState:]
to do this.
Example:
Objective-C
[buttonName setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
Swift 2
buttonName.setTitleColor(UIColor.blackColor(), forState: .Normal)
Swift 3
buttonName.setTitleColor(UIColor.white, for: .normal)
Thanks to richardchildan
import org.junit.Assert
import org.junit.Before
import org.junit.BeforeClass
import org.junit.Test
class FeatureTest {
companion object {
private lateinit var heavyFeature: HeavyFeature
@BeforeClass
@JvmStatic
fun beforeHeavy() {
heavyFeature = HeavyFeature()
}
}
private lateinit var feature: Feature
@Before
fun before() {
feature = Feature()
}
@Test
fun testCool() {
Assert.assertTrue(heavyFeature.cool())
Assert.assertTrue(feature.cool())
}
@Test
fun testWow() {
Assert.assertTrue(heavyFeature.wow())
Assert.assertTrue(feature.wow())
}
}
Same as
import org.junit.Assert
import org.junit.Test
class FeatureTest {
companion object {
private val heavyFeature = HeavyFeature()
}
private val feature = Feature()
@Test
fun testCool() {
Assert.assertTrue(heavyFeature.cool())
Assert.assertTrue(feature.cool())
}
@Test
fun testWow() {
Assert.assertTrue(heavyFeature.wow())
Assert.assertTrue(feature.wow())
}
}
I had a similar problem when posting to the WebAPI endpoint. By turning the CustomErrors=Off, i was able to see the actual error which is one of the dlls was missing.
class Main {
public static void main(String args[]) throws Exception {
ApplicationContext ac = new
ClassPathXmlApplicationContext("context.xml", Main.class);
DataSource dataSource = (DataSource) ac.getBean("dataSource");
// DataSource mysqlDataSource = (DataSource) ac.getBean("mysqlDataSource");
JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);
String prasobhName =
jdbcTemplate.query(
"select first_name from customer where last_name like ?",
new PreparedStatementSetter() {
public void setValues(PreparedStatement preparedStatement) throws
SQLException {
preparedStatement.setString(1, "nair%");
}
},
new ResultSetExtractor<Long>() {
public Long extractData(ResultSet resultSet) throws SQLException,
DataAccessException {
if (resultSet.next()) {
return resultSet.getLong(1);
}
return null;
}
}
);
System.out.println(machaceksName);
}
}
You can use combination of View, Icon and TextInput like so:
<View style={styles.searchSection}>
<Icon style={styles.searchIcon} name="ios-search" size={20} color="#000"/>
<TextInput
style={styles.input}
placeholder="User Nickname"
onChangeText={(searchString) => {this.setState({searchString})}}
underlineColorAndroid="transparent"
/>
</View>
and use flex-direction for styling
searchSection: {
flex: 1,
flexDirection: 'row',
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#fff',
},
searchIcon: {
padding: 10,
},
input: {
flex: 1,
paddingTop: 10,
paddingRight: 10,
paddingBottom: 10,
paddingLeft: 0,
backgroundColor: '#fff',
color: '#424242',
},
Icons were taken from "react-native-vector-icons"
In ES7 you can do:
for (const [key, value] of Object.entries(obj)) {
//
}
Scenario:
Your domain: mydomain.com
Domain you wish to send to: theirdomain.com
1. Determine the mail server you're sending to. Open a CMD prompt Type
NSLOOKUP
set q=mx
theirdomain.com
Response:
Non-authoritative answer:
theirdomain.com MX preference = 50, mail exchanger = mail.theirdomain.com
Nslookup_big
EDIT Be sure to type exit to terminate NSLOOKUP.
2. Connect to their mail server
SMTP communicates over port 25. We will now try to use TELNET to connect to their mail server "mail.theirdomain.com"
Open a CMD prompt
TELNET MAIL.THEIRDOMAIN.COM 25
You should see something like this as a response:
220 mx.google.com ESMTP 6si6253627yxg.6
Be aware that different servers will come up with different greetings but you should get SOMETHING. If nothing comes up at this point there are 2 possible problems. Port 25 is being blocked at your firewall, or their server is not responding. Try a different domain, if that works then it's not you.
3. Send an Email
Now, use simple SMTP commands to send a test email. This is very important, you CANNOT use the backspace key, it will work onscreen but not be interpreted correctly. You have to type these commands perfectly.
ehlo mydomain.com
mail from:<[email protected]>
rcpt to:<[email protected]>
data
This is a test, please do not respond
.
quit
So, what does that all mean? EHLO - introduce yourself to the mail server HELO can also be used but EHLO tells the server to use the extended command set (not that we're using that).
MAIL FROM - who's sending the email. Make sure to place this is the greater than/less than brackets as many email servers will require this (Postini).
RCPT TO - who you're sending it to. Again you need to use the brackets. See Step #4 on how to test relaying mail!
DATA - tells the SMTP server that what follows is the body of your email. Make sure to hit "Enter" at the end.
. - the period alone on the line tells the SMTP server you're all done with the data portion and it's clear to send the email.
quit - exits the TELNET session.
4. Test SMTP relay Testing SMTP relay is very easy, and simply requires a small change to the above commands. See below:
ehlo mydomain.com
mail from:<[email protected]>
rcpt to:<[email protected]>
data
This is a test, please do not respond
.
quit
See the difference? On the RCPT TO line, we're sending to a domain that is not controlled by the SMTP server we're sending to. You will get an immediate error is SMTP relay is turned off. If you're able to continue and send an email, then relay is allowed by that server.
required
is a reflected property (like id
, name
, type
, and such), so:
element.required = true;
...where element
is the actual input
DOM element, e.g.:
document.getElementById("edName").required = true;
(Just for completeness.)
Re:
Then the attribute's value is not the empty string, nor the canonical name of the attribute:
edName.attributes.required = [object Attr]
That's because required
in that code is an attribute object, not a string; attributes
is a NamedNodeMap
whose values are Attr
objects. To get the value of one of them, you'd look at its value
property. But for a boolean attribute, the value isn't relevant; the attribute is either present in the map (true) or not present (false).
So if required
weren't reflected, you'd set it by adding the attribute:
element.setAttribute("required", "");
...which is the equivalent of element.required = true
. You'd clear it by removing it entirely:
element.removeAttribute("required");
...which is the equivalent of element.required = false
.
But we don't have to do that with required
, since it's reflected.
SHA1
is a cryptographic hash function, so the intention of the design was to avoid what you are trying to do.
However, breaking a SHA1
hash is technically possible. You can do so by just trying to guess what was hashed. This brute-force approach is of course not efficient, but that's pretty much the only way.
So to answer your question: yes, it is possible, but you need significant computing power. Some researchers estimate that it costs $70k - $120k.
As far as we can tell today, there is also no other way but to guess the hashed input. This is because operations such as mod
eliminate information from your input. Suppose you calculate mod 5
and you get 0
. What was the input? Was it 0
, 5
or 500
? You see, you can't really 'go back' in this case.
I created a function for updating GridView column headers for a list and call it whenever the window is re-sized or the listview updates it's layout.
public void correctColumnWidths()
{
double remainingSpace = myList.ActualWidth;
if (remainingSpace > 0)
{
for (int i = 0; i < (myList.View as GridView).Columns.Count; i++)
if (i != 2)
remainingSpace -= (myList.View as GridView).Columns[i].ActualWidth;
//Leave 15 px free for scrollbar
remainingSpace -= 15;
(myList.View as GridView).Columns[2].Width = remainingSpace;
}
}
Just simply use:
var update_pizza = function () {
$("#pizza_kind").prop("disabled", !$('#pizza').prop('checked'));
};
update_pizza();
$("#pizza").change(update_pizza);
DEMO ?
You do this in the initializer-list of the constructor of the subclass.
class Foo : public BaseClass {
public:
Foo() : BaseClass("asdf") {}
};
Base-class constructors that take arguments have to be called there before any members are initialized.
TLDR: TypedJSON (working proof of concept)
The root of the complexity of this problem is that we need to deserialize JSON at runtime using type information that only exists at compile time. This requires that type-information is somehow made available at runtime.
Fortunately, this can be solved in a very elegant and robust way with decorators and ReflectDecorators:
With a combination of ReflectDecorators and property decorators, type information can be easily recorded about a property. A rudimentary implementation of this approach would be:
function JsonMember(target: any, propertyKey: string) {
var metadataFieldKey = "__propertyTypes__";
// Get the already recorded type-information from target, or create
// empty object if this is the first property.
var propertyTypes = target[metadataFieldKey] || (target[metadataFieldKey] = {});
// Get the constructor reference of the current property.
// This is provided by TypeScript, built-in (make sure to enable emit
// decorator metadata).
propertyTypes[propertyKey] = Reflect.getMetadata("design:type", target, propertyKey);
}
For any given property, the above snippet will add a reference of the constructor function of the property to the hidden __propertyTypes__
property on the class prototype. For example:
class Language {
@JsonMember // String
name: string;
@JsonMember// Number
level: number;
}
class Person {
@JsonMember // String
name: string;
@JsonMember// Language
language: Language;
}
And that's it, we have the required type-information at runtime, which can now be processed.
We first need to obtain an Object
instance using JSON.parse
-- after that, we can iterate over the entires in __propertyTypes__
(collected above) and instantiate the required properties accordingly. The type of the root object must be specified, so that the deserializer has a starting-point.
Again, a dead simple implementation of this approach would be:
function deserialize<T>(jsonObject: any, Constructor: { new (): T }): T {
if (!Constructor || !Constructor.prototype.__propertyTypes__ || !jsonObject || typeof jsonObject !== "object") {
// No root-type with usable type-information is available.
return jsonObject;
}
// Create an instance of root-type.
var instance: any = new Constructor();
// For each property marked with @JsonMember, do...
Object.keys(Constructor.prototype.__propertyTypes__).forEach(propertyKey => {
var PropertyType = Constructor.prototype.__propertyTypes__[propertyKey];
// Deserialize recursively, treat property type as root-type.
instance[propertyKey] = deserialize(jsonObject[propertyKey], PropertyType);
});
return instance;
}
var json = '{ "name": "John Doe", "language": { "name": "en", "level": 5 } }';
var person: Person = deserialize(JSON.parse(json), Person);
The above idea has a big advantage of deserializing by expected types (for complex/object values), instead of what is present in the JSON. If a Person
is expected, then it is a Person
instance that is created. With some additional security measures in place for primitive types and arrays, this approach can be made secure, that resists any malicious JSON.
However, if you are now happy that the solution is that simple, I have some bad news: there is a vast number of edge cases that need to be taken care of. Only some of which are:
If you don't want to fiddle around with all of these (I bet you don't), I'd be glad to recommend a working experimental version of a proof-of-concept utilizing this approach, TypedJSON -- which I created to tackle this exact problem, a problem I face myself daily.
Due to how decorators are still being considered experimental, I wouldn't recommend using it for production use, but so far it served me well.
Unless your compiler is different than the one supplied with the Mac XCode Dev tools, just follow the instructions in section 5.1 of Getting Started Guide for Unix Variants. The configuration and building of the latest source couldn't be easier, and it took all about about 1 minute to configure and 10 minutes to compile.
os.Open()
must have worked differently in the past, but this works for me:
f, err := os.OpenFile("testlogfile", os.O_RDWR | os.O_CREATE | os.O_APPEND, 0666)
if err != nil {
log.Fatalf("error opening file: %v", err)
}
defer f.Close()
log.SetOutput(f)
log.Println("This is a test log entry")
Based on the Go docs, os.Open()
can't work for log.SetOutput
, because it opens the file "for reading:"
func Open
func Open(name string) (file *File, err error)
Open
opens the named file for reading. If successful, methods on the returned file can be used for reading; the associated file descriptor has modeO_RDONLY
. If there is an error, it will be of type*PathError
.
EDIT
Moved defer f.Close()
to after if err != nil
check
It depends with the office you have installed, if you have x64 bit office then you must compile the application as a x64 to allow it to run, so if you want it to run on x36 then you must install office x86 to accept, i tried all the solutions above but none worked until when i realised i had office x64bit and so i built the application as x64 and worked
My take is in semantics depending on how you define your container. For example, A "bag of apples" or simply "apples" or an "apple bag" or "apple".
Example: a "college" table can contain 0 or more colleges a table of "colleges" can contain 0 or more collegues
a "student" table can contain 0 or more students
a table of "students" can contain 0 or more students.
My conclusion is that either is fine but you have to define how you (or people interacting with it) are going to approach when referring to the tables; "a x table" or a "table of xs"
This should work well. Similar to the accepted answer (though using jQuery), but the isDragging
flag is only reset if the new mouse position differs from that on mousedown
event. Unlike the accepted answer, that works on recent versions of Chrome, where mousemove
is fired regardless of whether mouse was moved or not.
var isDragging = false;
var startingPos = [];
$(".selector")
.mousedown(function (evt) {
isDragging = false;
startingPos = [evt.pageX, evt.pageY];
})
.mousemove(function (evt) {
if (!(evt.pageX === startingPos[0] && evt.pageY === startingPos[1])) {
isDragging = true;
}
})
.mouseup(function () {
if (isDragging) {
console.log("Drag");
} else {
console.log("Click");
}
isDragging = false;
startingPos = [];
});
You may also adjust the coordinate check in mousemove
if you want to add a little bit of tolerance (i.e. treat tiny movements as clicks, not drags).
Just see the below code snippet if you are implementing a REST API through express and mongoose. (Example for ADD)
...._x000D_
exports.AddSomething = (req,res,next) =>{_x000D_
const newSomething = new SomeEntity({_x000D_
_id:new mongoose.Types.ObjectId(), //its very own ID_x000D_
somethingName:req.body.somethingName,_x000D_
theForeignKey: mongoose.Types.ObjectId(req.body.theForeignKey)// if you want to pass an object ID_x000D_
})_x000D_
}_x000D_
...
_x000D_
Hope it Helps
We love Kubernetes is because once we give them what we want it goes on to figure out how to achieve it without our any involvement.
"create" is like playing GOD by taking things into our own hands. It is good for local debugging when you only want to work with the POD and not care abt Deployment/Replication Controller.
"apply" is playing by the rules. "apply" is like a master tool that helps you create and modify and requires nothing from you to manage the pods.
Pass a selector to the jQuery parents function:
d.parents('.a').attr('id')
EDIT Hmm, actually Slaks's answer is superior if you only want the closest ancestor that matches your selector.
One of the most possible causes of this error could be that you have defined older version in your package.json. To solve this problem, change the versions in the package.json to match those npm is complaining about.
Once done, run npm install and voila!!.
I had a similar problem with dynamically adding datepicker classes. The solution I found was to comment out line 46 of datepicker.js
// this.element.on('click', $.proxy(this.show, this));
From the docs
To whitelist an entire hash of parameters, the permit! method can be used
params.require(:log_entry).permit!
Nested attributes are in the form of a hash. In my app, I have a Question.rb model accept nested attributes for an Answer.rb model (where the user creates answer choices for a question he creates). In the questions_controller, I do this
def question_params
params.require(:question).permit!
end
Everything in the question hash is permitted, including the nested answer attributes. This also works if the nested attributes are in the form of an array.
Having said that, I wonder if there's a security concern with this approach because it basically permits anything that's inside the hash without specifying exactly what it is, which seems contrary to the purpose of strong parameters.
The solutions above seemed a little coupled and at the same time avoid reuse the same protocol in other controllers, that's why I've come with the solution that is more strong typed using generic type-erasure.
@noreturn public func notImplemented(){
fatalError("not implemented yet")
}
public protocol DataChangedProtocol: class{
typealias DataType
func onChange(t:DataType)
}
class AbstractDataChangedWrapper<DataType> : DataChangedProtocol{
func onChange(t: DataType) {
notImplemented()
}
}
class AnyDataChangedWrapper<T: DataChangedProtocol> : AbstractDataChangedWrapper<T.DataType>{
var base: T
init(_ base: T ){
self.base = base
}
override func onChange(t: T.DataType) {
base.onChange(t)
}
}
class AnyDataChangedProtocol<DataType> : DataChangedProtocol{
var base: AbstractDataChangedWrapper<DataType>
init<S: DataChangedProtocol where S.DataType == DataType>(_ s: S){
self.base = AnyDataChangedWrapper(s)
}
func onChange(t: DataType) {
base.onChange(t)
}
}
class Source : DataChangedProtocol {
func onChange(data: String) {
print( "got new value \(data)" )
}
}
class Target {
var delegate: AnyDataChangedProtocol<String>?
func reportChange(data:String ){
delegate?.onChange(data)
}
}
var source = Source()
var target = Target()
target.delegate = AnyDataChangedProtocol(source)
target.reportChange("newValue")
output: got new value newValue
You can also use this old trick for converting complex if/then/else blocks into a slightly cleaner switch statement:
<div [ngSwitch]="true">
<button (click)="foo=(++foo%3)+1">Switch!</button>
<div *ngSwitchCase="foo === 1">one</div>
<div *ngSwitchCase="foo === 2">two</div>
<div *ngSwitchCase="foo === 3">three</div>
</div>
synchronized
is method level/block level access restriction modifier. It will make sure that one thread owns the lock for critical section. Only the thread,which own a lock can enter synchronized
block. If other threads are trying to access this critical section, they have to wait till current owner releases the lock.
volatile
is variable access modifier which forces all threads to get latest value of the variable from main memory. No locking is required to access volatile
variables. All threads can access volatile variable value at same time.
A good example to use volatile variable : Date
variable.
Assume that you have made Date variable volatile
. All the threads, which access this variable always get latest data from main memory so that all threads show real (actual) Date value. You don't need different threads showing different time for same variable. All threads should show right Date value.
Have a look at this article for better understanding of volatile
concept.
Lawrence Dol cleary explained your read-write-update query
.
Regarding your other queries
When is it more suitable to declare variables volatile than access them through synchronized?
You have to use volatile
if you think all threads should get actual value of the variable in real time like the example I have explained for Date variable.
Is it a good idea to use volatile for variables that depend on input?
Answer will be same as in first query.
Refer to this article for better understanding.
var fileInput = $('#uploadCaptureInputFile');
fileInput.replaceWith(fileInput.val('').clone(true));
I don't think desc
takes an na.rm
argument... I'm actually surprised it doesn't throw an error when you give it one. If you just want to remove NA
s, use na.omit
(base) or tidyr::drop_na
:
outcome.df %>%
na.omit() %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
library(tidyr)
outcome.df %>%
drop_na() %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
If you only want to remove NA
s from the HeartAttackDeath column, filter with is.na
, or use tidyr::drop_na
:
outcome.df %>%
filter(!is.na(HeartAttackDeath)) %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
outcome.df %>%
drop_na(HeartAttackDeath) %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
As pointed out at the dupe, complete.cases
can also be used, but it's a bit trickier to put in a chain because it takes a data frame as an argument but returns an index vector. So you could use it like this:
outcome.df %>%
filter(complete.cases(.)) %>%
group_by(Hospital, State) %>%
arrange(desc(HeartAttackDeath)) %>%
head()
I have used https://github.com/malsup/form/blob/master/jquery.form.js, which has a function called clearInputs()
, which is crossbrowser, well tested, easy to use and handles also IE issue and hidden fields clearing if needed. Maybe a little long solution to only clear file input, but if you are dealing with crossbrowser file uploads, then this solution is recommended.
The usage is easy:
// Clear all file fields: $("input:file").clearInputs(); // Clear also hidden fields: $("input:file").clearInputs(true); // Clear specific fields: $("#myfilefield1,#myfilefield2").clearInputs();
/** * Clears the selected form elements. */ $.fn.clearFields = $.fn.clearInputs = function(includeHidden) { var re = /^(?:color|date|datetime|email|month|number|password|range|search|tel|text|time|url|week)$/i; // 'hidden' is not in this list return this.each(function() { var t = this.type, tag = this.tagName.toLowerCase(); if (re.test(t) || tag == 'textarea') { this.value = ''; } else if (t == 'checkbox' || t == 'radio') { this.checked = false; } else if (tag == 'select') { this.selectedIndex = -1; } else if (t == "file") { if (/MSIE/.test(navigator.userAgent)) { $(this).replaceWith($(this).clone(true)); } else { $(this).val(''); } } else if (includeHidden) { // includeHidden can be the value true, or it can be a selector string // indicating a special test; for example: // $('#myForm').clearForm('.special:hidden') // the above would clean hidden inputs that have the class of 'special' if ( (includeHidden === true && /hidden/.test(t)) || (typeof includeHidden == 'string' && $(this).is(includeHidden)) ) this.value = ''; } }); };
You can use count()
function, which has however a different behaviour depending on the version of dplyr
:
dplyr 0.7.1: returns an ungrouped table: you need to group again by am
dplyr < 0.7.1: returns a grouped table, so no need to group again, although you might want to ungroup()
for later manipulations
dplyr 0.7.1
mtcars %>%
count(am, gear) %>%
group_by(am) %>%
mutate(freq = n / sum(n))
dplyr < 0.7.1
mtcars %>%
count(am, gear) %>%
mutate(freq = n / sum(n))
This results into a grouped table, if you want to use it for further analysis, it might be useful to remove the grouped attribute with ungroup()
.
You will usually want to use forward declaration in a classes header file when you want to use the other type (class) as a member of the class. You can not use the forward-declared classes methods in the header file because C++ does not know the definition of that class at that point yet. That's logic you have to move into the .cpp-files, but if you are using template-functions you should reduce them to only the part that uses the template and move that function into the header.
If you are doing this in more than one place in your application it would make sense to use a client-side JSON database because creating custom search functions is messy and less maintainable than the alternative.
Check out ForerunnerDB which provides you with a very powerful client-side JSON database system and includes a very simple query language to help you do exactly what you are looking for:
// Create a new instance of ForerunnerDB and then ask for a database
var fdb = new ForerunnerDB(),
db = fdb.db('myTestDatabase'),
coll;
// Create our new collection (like a MySQL table) and change the default
// primary key from "_id" to "id"
coll = db.collection('myCollection', {primaryKey: 'id'});
// Insert our records into the collection
coll.insert([
{"name":"my Name","id":12,"type":"car owner"},
{"name":"my Name2","id":13,"type":"car owner2"},
{"name":"my Name4","id":14,"type":"car owner3"},
{"name":"my Name4","id":15,"type":"car owner5"}
]);
// Search the collection for the string "my nam" as a case insensitive
// regular expression - this search will match all records because every
// name field has the text "my Nam" in it
var searchResultArray = coll.find({
name: /my nam/i
});
console.log(searchResultArray);
/* Outputs
[
{"name":"my Name","id":12,"type":"car owner"},
{"name":"my Name2","id":13,"type":"car owner2"},
{"name":"my Name4","id":14,"type":"car owner3"},
{"name":"my Name4","id":15,"type":"car owner5"}
]
*/
Disclaimer: I am the developer of ForerunnerDB.
Try this
String date = get_pump_data.getString("bond_end_date");
DateFormat format = new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH);
Date datee = (Date)format.parse(date);
With jQuery (and without FormData API) you can use something like this:
function readFile(file){
var loader = new FileReader();
var def = $.Deferred(), promise = def.promise();
//--- provide classic deferred interface
loader.onload = function (e) { def.resolve(e.target.result); };
loader.onprogress = loader.onloadstart = function (e) { def.notify(e); };
loader.onerror = loader.onabort = function (e) { def.reject(e); };
promise.abort = function () { return loader.abort.apply(loader, arguments); };
loader.readAsBinaryString(file);
return promise;
}
function upload(url, data){
var def = $.Deferred(), promise = def.promise();
var mul = buildMultipart(data);
var req = $.ajax({
url: url,
data: mul.data,
processData: false,
type: "post",
async: true,
contentType: "multipart/form-data; boundary="+mul.bound,
xhr: function() {
var xhr = jQuery.ajaxSettings.xhr();
if (xhr.upload) {
xhr.upload.addEventListener('progress', function(event) {
var percent = 0;
var position = event.loaded || event.position; /*event.position is deprecated*/
var total = event.total;
if (event.lengthComputable) {
percent = Math.ceil(position / total * 100);
def.notify(percent);
}
}, false);
}
return xhr;
}
});
req.done(function(){ def.resolve.apply(def, arguments); })
.fail(function(){ def.reject.apply(def, arguments); });
promise.abort = function(){ return req.abort.apply(req, arguments); }
return promise;
}
var buildMultipart = function(data){
var key, crunks = [], bound = false;
while (!bound) {
bound = $.md5 ? $.md5(new Date().valueOf()) : (new Date().valueOf());
for (key in data) if (~data[key].indexOf(bound)) { bound = false; continue; }
}
for (var key = 0, l = data.length; key < l; key++){
if (typeof(data[key].value) !== "string") {
crunks.push("--"+bound+"\r\n"+
"Content-Disposition: form-data; name=\""+data[key].name+"\"; filename=\""+data[key].value[1]+"\"\r\n"+
"Content-Type: application/octet-stream\r\n"+
"Content-Transfer-Encoding: binary\r\n\r\n"+
data[key].value[0]);
}else{
crunks.push("--"+bound+"\r\n"+
"Content-Disposition: form-data; name=\""+data[key].name+"\"\r\n\r\n"+
data[key].value);
}
}
return {
bound: bound,
data: crunks.join("\r\n")+"\r\n--"+bound+"--"
};
};
//----------
//---------- On submit form:
var form = $("form");
var $file = form.find("#file");
readFile($file[0].files[0]).done(function(fileData){
var formData = form.find(":input:not('#file')").serializeArray();
formData.file = [fileData, $file[0].files[0].name];
upload(form.attr("action"), formData).done(function(){ alert("successfully uploaded!"); });
});
With FormData API you just have to add all fields of your form to FormData object and send it via $.ajax({ url: url, data: formData, processData: false, contentType: false, type:"POST"})
Please also remember that ||=
isn't an atomic operation and so, it isn't thread safe. As rule of thumb, don't use it for class methods.
Right click your www folder and click on properties. Navigate to permissions and change all to read and write then click on "Apply permission to enclosed files" and your are done!! Maybe its too late but this will definitely help some other person
I cleared browser cache. Created session folder as listed in phpinfo.php.
It worked !
You can also do this.
//find the index of the CompanyName column
int columnIndex = thisReader.GetOrdinal("CompanyName");
//Get the value of the column. Will throw if the value is null.
string companyName = thisReader.GetString(columnIndex);
You probably have not installed make. Restart the cygwin installer, search for make, select it and it should be installed. By default the cygwin installer does not install everything for what I remember.
As per Basil Bourque's comment, this is the updated answer for this question, taking into account the new API of Java 8:
String myDateString = "13:24:40";
LocalTime localTime = LocalTime.parse(myDateString, DateTimeFormatter.ofPattern("HH:mm:ss"));
int hour = localTime.get(ChronoField.CLOCK_HOUR_OF_DAY);
int minute = localTime.get(ChronoField.MINUTE_OF_HOUR);
int second = localTime.get(ChronoField.SECOND_OF_MINUTE);
//prints "hour: 13, minute: 24, second: 40":
System.out.println(String.format("hour: %d, minute: %d, second: %d", hour, minute, second));
Remarks:
====== Below is the old (original) answer for this question, using pre-Java8 API: =====
I'm sorry if I'm gonna upset anyone with this, but I'm actually gonna answer the question. The Java API's are pretty huge, I think it's normal that someone might miss one now and then.
A SimpleDateFormat might do the trick here:
http://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html
It should be something like:
String myDateString = "13:24:40";
//SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss");
//the above commented line was changed to the one below, as per Grodriguez's pertinent comment:
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
Date date = sdf.parse(myDateString);
Calendar calendar = GregorianCalendar.getInstance(); // creates a new calendar instance
calendar.setTime(date); // assigns calendar to given date
int hour = calendar.get(Calendar.HOUR);
int minute; /... similar methods for minutes and seconds
The gotchas you should be aware of:
the pattern you pass to SimpleDateFormat might be different then the one in my example depending on what values you have (are the hours in 12 hours format or in 24 hours format, etc). Look at the documentation in the link for details on this
Once you create a Date object out of your String (via SimpleDateFormat), don't be tempted to use Date.getHour(), Date.getMinute() etc. They might appear to work at times, but overall they can give bad results, and as such are now deprecated. Use the calendar instead as in the example above.
Please install the new CLI v3 (npm install -g ionic@latest).
If this issue is still a problem in CLI v3. Thank you!
Why not apply the border to the bottom of the UL?
#refundReasonMenu #nav ul
{
border-bottom: 1px solid #b5b5b5;
}
public static <T> List<T> merge(List<T>... args) {
final List<T> result = new ArrayList<>();
for (List<T> list : args) {
result.addAll(list);
}
return result;
}
You seem to be using the combined log format.
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\"" combined
"-"
otherwise.The complete(?) list of formatters can be found here. The same section of the documentation also lists other common log formats; readers whose logs don't look quite like this one may find the pattern their Apache configuration is using listed there.
change the data type to another one which uses less memory works. For me, I change the data type to numpy.uint8:
data['label'] = data['label'].astype(np.uint8)
There are several different ways you can handle this. You could add a RequiredFieldValidator as well as a RangeValidator (if that works for your case) or you could add a CustomFieldValidator.
Link to the CustomFieldValidator: http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.customvalidator%28VS.71%29.aspx
Link to MSDN Article on ASP.NET Validation: http://msdn.microsoft.com/en-us/library/aa479045.aspx
The message means that both the packages have functions with the same names. In this particular case, the testthat
and assertive
packages contain five functions with the same name.
R will look through the search
path to find functions, and will use the first one that it finds.
search()
## [1] ".GlobalEnv" "package:assertive" "package:testthat"
## [4] "tools:rstudio" "package:stats" "package:graphics"
## [7] "package:grDevices" "package:utils" "package:datasets"
## [10] "package:methods" "Autoloads" "package:base"
In this case, since assertive
was loaded after testthat
, it appears earlier in the search path, so the functions in that package will be used.
is_true
## function (x, .xname = get_name_in_parent(x))
## {
## x <- coerce_to(x, "logical", .xname)
## call_and_name(function(x) {
## ok <- x & !is.na(x)
## set_cause(ok, ifelse(is.na(x), "missing", "false"))
## }, x)
## }
<bytecode: 0x0000000004fc9f10>
<environment: namespace:assertive.base>
The functions in testthat
are not accessible in the usual way; that is, they have been masked.
You can explicitly provide a package name when you call a function, using the double colon operator, ::
. For example:
testthat::is_true
## function ()
## {
## function(x) expect_true(x)
## }
## <environment: namespace:testthat>
If you know about the function name clash, and don't want to see it again, you can suppress the message by passing warn.conflicts = FALSE
to library
.
library(testthat)
library(assertive, warn.conflicts = FALSE)
# No output this time
Alternatively, suppress the message with suppressPackageStartupMessages
:
library(testthat)
suppressPackageStartupMessages(library(assertive))
# Also no output
If you have altered some of R's startup configuration options (see ?Startup
) you may experience different function masking behavior than you might expect. The precise order that things happen as laid out in ?Startup
should solve most mysteries.
For example, the documentation there says:
Note that when the site and user profile files are sourced only the base package is loaded, so objects in other packages need to be referred to by e.g. utils::dump.frames or after explicitly loading the package concerned.
Which implies that when 3rd party packages are loaded via files like .Rprofile
you may see functions from those packages masked by those in default packages like stats, rather than the reverse, if you loaded the 3rd party package after R's startup procedure is complete.
First, get a character vector of all the environments on the search path. For convenience, we'll name each element of this vector with its own value.
library(dplyr)
envs <- search() %>% setNames(., .)
For each environment, get the exported functions (and other variables).
fns <- lapply(envs, ls)
Turn this into a data frame, for easy use with dplyr.
fns_by_env <- data_frame(
env = rep.int(names(fns), lengths(fns)),
fn = unlist(fns)
)
Find cases where the object appears more than once.
fns_by_env %>%
group_by(fn) %>%
tally() %>%
filter(n > 1) %>%
inner_join(fns_by_env)
To test this, try loading some packages with known conflicts (e.g., Hmisc
, AnnotationDbi
).
The conflicted
package throws an error with a helpful error message, whenever you try to use a variable with an ambiguous name.
library(conflicted)
library(Hmisc)
units
## Error: units found in 2 packages. You must indicate which one you want with ::
## * Hmisc::units
## * base::units
You need to use an undocumented trick with Excel's LINEST
function:
=LINEST(known_y's, [known_x's], [const], [stats])
A regular linear regression is calculated (with your data) as:
=LINEST(B2:B21,A2:A21)
which returns a single value, the linear slope (m
) according to the formula:
which for your data:
is:
You can also use Excel to calculate a regression with a formula that uses an exponent for x
different from 1
, e.g. x1.2:
using the formula:
=LINEST(B2:B21, A2:A21^1.2)
which for you data:
is:
Excel's LINEST
function can also calculate multiple regressions, with different exponents on x
at the same time, e.g.:
=LINEST(B2:B21,A2:A21^{1,2})
Note: if locale is set to European (decimal symbol ","), then comma should be replaced by semicolon and backslash, i.e.
=LINEST(B2:B21;A2:A21^{1\2})
Now Excel will calculate regressions using both x1 and x2 at the same time:
The impossibly tricky part there's no obvious way to see the other regression values. In order to do that you need to:
select the cell that contains your formula:
extend the selection the left 2 spaces (you need the select to be at least 3 cells wide):
press F2
press Ctrl+Shift+Enter
You will now see your 3 regression constants:
y = -0.01777539x^2 + 6.864151123x + -591.3531443
I had a function that I wanted to perform a regression using some exponent:
y = m×xk + b
But I didn't know the exponent. So I changed the LINEST
function to use a cell reference instead:
=LINEST(B2:B21,A2:A21^F3, true, true)
With Excel then outputting full stats (the 4th paramter to LINEST
):
I tell the Solver to maximize R2:
And it can figure out the best exponent. Which for you data:
is:
To do this with user input:
public static void getPow(){
Scanner sc = new Scanner(System.in);
System.out.println("Enter first integer: "); // 3
int first = sc.nextInt();
System.out.println("Enter second integer: "); // 2
int second = sc.nextInt();
System.out.println(first + " to the power of " + second + " is " +
(int) Math.pow(first, second)); // outputs 9
if you are using wdcalendar this going to help you
$("#PatientBirthday").datepicker({
picker: "<button class='calpick'></button>",
onReturn:function(d){
var today = new Date();
var birthDate = d;
var age = today.getFullYear() - birthDate.getFullYear();
var m = today.getMonth() - birthDate.getMonth();
if (m < 0 || (m === 0 && today.getDate() < birthDate.getDate())) {
age--;
}
$('#ageshow')[0].innerHTML="Age: "+age;
$("#PatientBirthday").val((d.getMonth() + 1) + '/' + d.getDate() + '/' + d.getFullYear());
}
});
the event onReturn works for me
hope this help
I have experienced this issue with images taken from camera or saved in camera roll which are taken from camera. Images downloaded in photo library from safari browser does not rotate when uploaded.
I was able to solve this issue by making the image data as JPEG before uploading.
let image = info[UIImagePickerControllerOriginalImage] as! UIImage
let data = UIImageJPEGRepresentation(image, 1.0)
We can now use the data for uploading and the image will not get rotated after upload.
Hope this will work.
It's worth mentioning that you'll sometimes see void 0
when checking for undefined, simply because it requires fewer characters.
For example:
if (something === undefined) {
doSomething();
}
Compared to:
if (something === void 0) {
doSomething();
}
Some minification methods replace undefined
with void 0
for this reason.