Yeah, by using $(this)
, you enabled jQuery functionality for the object. By just using this
, it only has generic Javascript functionality.
In most cases they are essentially the same, but the second version saves memory because there is only one instance of the function instead of a separate function for each object.
A reason to use the first form is to access "private members". For example:
var A = function () {
var private_var = ...;
this.x = function () {
return private_var;
};
this.setX = function (new_x) {
private_var = new_x;
};
};
Because of javascript's scoping rules, private_var is available to the function assigned to this.x, but not outside the object.
A Context
is:
Probably the most detailed and comprehensive article on this
is the following:
Gentle explanation of 'this' keyword in JavaScript
The idea behind this
is to understand that the function invocation types have the significant importance on setting this
value.
When having troubles identifying this
, do not ask yourself:
Where is
this
taken from?
but do ask yourself:
How is the function invoked?
For an arrow function (special case of context transparency) ask yourself:
What value has
this
where the arrow function is defined?
This mindset is correct when dealing with this
and will save you from headache.
This refers to the object you’re “in” right now. In other words,this refers to the receiving object. You use this to clarify which variable you’re referring to.Java_whitepaper page :37
class Point extends Object
{
public double x;
public double y;
Point()
{
x = 0.0;
y = 0.0;
}
Point(double x, double y)
{
this.x = x;
this.y = y;
}
}
In the above example code this.x/this.y refers to current class that is Point class x and y variables where (double x,double y) are double values passed from different class to assign values to current class .
this
is a reference to the current object. It is used in the constructor to distinguish between the local and the current class variable which have the same name. e.g.:
public class circle {
int x;
circle(int x){
this.x =x;
//class variable =local variable
}
}
this
can also be use to call one constructor from another constructor. e.g.:
public class circle {
int x;
circle() {
this(1);
}
circle(int x) {
this.x = x;
}
}
From Crockford
By convention, we make a private that variable. This is used to make the object available to the private methods. This is a workaround for an error in the ECMAScript Language Specification which causes this to be set incorrectly for inner functions.
function usesThis(name) {
this.myName = name;
function returnMe() {
return this; //scope is lost because of the inner function
}
return {
returnMe : returnMe
}
}
function usesThat(name) {
var that = this;
this.myName = name;
function returnMe() {
return that; //scope is baked in with 'that' to the "class"
}
return {
returnMe : returnMe
}
}
var usesthat = new usesThat('Dave');
var usesthis = new usesThis('John');
alert("UsesThat thinks it's called " + usesthat.returnMe().myName + '\r\n' +
"UsesThis thinks it's called " + usesthis.returnMe().myName);
This alerts...
UsesThat thinks it's called Dave
UsesThis thinks it's called undefined
this
in JS:The value of this
in JS is 100% determined by how a function is called, and not how it is defined. We can relatively easily find the value of this
by the 'left of the dot rule':
this
is the object left of the dot of the function which is calledthis
inside a function is often the global object (global
in node, window
in browser). I wouldn't recommend using the this
keyword here because it is less explicit than using something like window
!Function.prototype.bind()
a function that can fix the value of this
. These are exceptions of the rule but are really helpful to fix the value of this
.module.exports.data = 'module data';
// This outside a function in node refers to module.exports object
console.log(this);
const obj1 = {
data: "obj1 data",
met1: function () {
console.log(this.data);
},
met2: () => {
console.log(this.data);
},
};
const obj2 = {
data: "obj2 data",
test1: function () {
console.log(this.data);
},
test2: function () {
console.log(this.data);
}.bind(obj1),
test3: obj1.met1,
test4: obj1.met2,
};
obj2.test1();
obj2.test2();
obj2.test3();
obj2.test4();
obj1.met1.call(obj2);
Output:
Let me walk you through the outputs 1 by 1 (ignoring the first log starting from the second):
this
is obj2
because of the left of the dot rule, we can see how test1
is called obj2.test1();
. obj2
is left of the dot and thus the this
value.obj2
is left of the dot, test2
is bound to obj1
via the bind()
method. So the this
value is obj1
.obj2
is left of the dot from the function which is called: obj2.test3()
. Therefore obj2
will be the value of this
.obj2.test4()
obj2
is left of the dot. However, arrow functions don't have their own this
binding. Therefore it will bind to the this
value of the outer scope which is the module.exports
an object which was logged in the beginning.this
by using the call
function. Here we can pass in the desired this
value as an argument, which is obj2
in this case.You should use the "siblings()" method, and prevent from running the ".content a" selector over and over again just for applying that effect:
HTML
<div class="content">
<a href="#">A</a>
</div>
<div class="content">
<a href="#">B</a>
</div>
<div class="content">
<a href="#">C</a>
</div>
CSS
.content {
background-color:red;
margin:10px;
}
.content.other {
background-color:yellow;
}
Javascript
$(".content a").click(function() {
var current = $(this).parent();
current.removeClass('other')
.siblings()
.addClass('other');
});
See here: http://jsfiddle.net/3bzLV/1/
I use it anywhere there might be ambiguity (obviously). Not just compiler ambiguity (it would be required in that case), but also ambiguity for someone looking at the code.
$(this)
returns a cached
version of the element, hence improving performance since jQuery doesn't have to do a complete lookup in the DOM of the element again.
In browsers other than Internet Explorer, you can pass parameters to the function together after the delay:
var timeoutID = window.setTimeout(func, delay, [param1, param2, ...]);
So, you can do this:
var timeoutID = window.setTimeout(function (self) {
console.log(self);
}, 500, this);
This is better in terms of performance than a scope lookup (caching this
into a variable outside of the timeout / interval expression), and then creating a closure (by using $.proxy
or Function.prototype.bind
).
The code to make it work in IEs from Webreflection:
/*@cc_on
(function (modifierFn) {
// you have to invoke it as `window`'s property so, `window.setTimeout`
window.setTimeout = modifierFn(window.setTimeout);
window.setInterval = modifierFn(window.setInterval);
})(function (originalTimerFn) {
return function (callback, timeout){
var args = [].slice.call(arguments, 2);
return originalTimerFn(function () {
callback.apply(this, args)
}, timeout);
}
});
@*/
If you call your created method in the lifecycle methods like componentDidMount... then you can only use the this.onToggleLoop = this.onToogleLoop.bind(this)
and the fat arrow function onToggleLoop = (event) => {...}
.
The normal approach of the declaration of a function in the constructor wont work because the lifecycle methods are called earlier.
This is long detailed explanation. I hope this will help the beginners. I will make it very simple.
First, let's create a class
<?php
class Class1
{
}
You can omit the php closing tag ?>
if you are using php code only.
Now let's add properties and a method inside Class1
.
<?php
class Class1
{
public $property1 = "I am property 1";
public $property2 = "I am property 2";
public function Method1()
{
return "I am Method 1";
}
}
The property is just a simple variable , but we give it the name property cuz its inside a class.
The method is just a simple function , but we say method cuz its also inside a class.
The public
keyword mean that the method or a property can be accessed anywhere in the script.
Now, how we can use the properties and the method inside Class1
?
The answer is creating an instance or an object, think of an object as a copy of the class.
<?php
class Class1
{
public $property1 = "I am property 1";
public $property2 = "I am property 2";
public function Method1()
{
return "I am Method 1";
}
}
$object1 = new Class1;
var_dump($object1);
We created an object, which is $object1
, which is a copy of Class1
with all its contents. And we dumped all the contents of $object1
using var_dump()
.
This will give you
object(Class1)#1 (2) { ["property1"]=> string(15) "I am property 1" ["property2"]=> string(15) "I am property 2" }
So all the contents of Class1
are in $object1
, except Method1
, i don't know why methods doesn't show while dumping objects.
Now what if we want to access $property1
only. Its simple , we do var_dump($object1->property1);
, we just added ->property1
, we pointed to it.
we can also access Method1()
, we do var_dump($object1->Method1());
.
Now suppose i want to access $property1
from inside Method1()
, i will do this
<?php
class Class1
{
public $property1 = "I am property 1";
public $property2 = "I am property 2";
public function Method1()
{
$object2 = new Class1;
return $object2->property1;
}
}
$object1 = new Class1;
var_dump($object1->Method1());
we created $object2 = new Class1;
which is a new copy of Class1
or we can say an instance. Then we pointed to property1
from $object2
return $object2->property1;
This will print string(15) "I am property 1"
in the browser.
Now instead of doing this inside Method1()
$object2 = new Class1;
return $object2->property1;
We do this
return $this->property1;
The $this
object is used inside the class to refer to the class itself.
It is an alternative for creating new object and then returning it like this
$object2 = new Class1;
return $object2->property1;
Another example
<?php
class Class1
{
public $property1 = 119;
public $property2 = 666;
public $result;
public function Method1()
{
$this->result = $this->property1 + $this->property2;
return $this->result;
}
}
$object1 = new Class1;
var_dump($object1->Method1());
We created 2 properties containing integers and then we added them and put the result in $this->result
.
Do not forget that
$this->property1
= $property1
= 119
they have that same value .. etc
I hope that explains the idea.
This series of videos will help you a lot in OOP
https://www.youtube.com/playlist?list=PLe30vg_FG4OSEHH6bRF8FrA7wmoAMUZLv
I just read a pretty interesting explanation on the difference between the two, and a growing preference to attach models to the controller and alias the controller to bind models to the view. http://toddmotto.com/digging-into-angulars-controller-as-syntax/ is the article.
NOTE: The original link still exists, but changes in formatting have made it hard to read. It's easier to view in the original.
He doesn't mention it but when defining directives, if you need to share something between multiple directives and don't want a service (there are legitimate cases where services are a hassle) then attach the data to the parent directive's controller.
The $scope
service provides plenty of useful things, $watch
being the most obvious, but if all you need to bind data to the view, using the plain controller and 'controller as' in the template is fine and arguably preferable.
The context lets you provide arguments at call-time, allowing easy customization of generic pre-built helper functions.
some examples:
// stock footage:
function addTo(x){ "use strict"; return x + this; }
function pluck(x){ "use strict"; return x[this]; }
function lt(x){ "use strict"; return x < this; }
// production:
var r = [1,2,3,4,5,6,7,8,9];
var words = "a man a plan a canal panama".split(" ");
// filtering numbers:
_.filter(r, lt, 5); // elements less than 5
_.filter(r, lt, 3); // elements less than 3
// add 100 to the elements:
_.map(r, addTo, 100);
// encode eggy peggy:
_.map(words, addTo, "egg").join(" ");
// get length of words:
_.map(words, pluck, "length");
// find words starting with "e" or sooner:
_.filter(words, lt, "e");
// find all words with 3 or more chars:
_.filter(words, pluck, 2);
Even from the limited examples, you can see how powerful an "extra argument" can be for creating re-usable code. Instead of making a different callback function for each situation, you can usually adapt a low-level helper. The goal is to have your custom logic bundling a verb and two nouns, with minimal boilerplate.
Admittedly, arrow functions have eliminated a lot of the "code golf" advantages of generic pure functions, but the semantic and consistency advantages remain.
I always add "use strict"
to helpers to provide native [].map()
compatibility when passing primitives. Otherwise, they are coerced into objects, which usually still works, but it's faster and safer to be type-specific.
Yes. unless, there is an ambiguity.
This is an extension method. See here for an explanation.
Extension methods allow developers to add new methods to the public contract of an existing CLR type, without having to sub-class it or recompile the original type. Extension Methods help blend the flexibility of "duck typing" support popular within dynamic languages today with the performance and compile-time validation of strongly-typed languages.
Extension Methods enable a variety of useful scenarios, and help make possible the really powerful LINQ query framework... .
it means that you can call
MyClass myClass = new MyClass();
int i = myClass.Foo();
rather than
MyClass myClass = new MyClass();
int i = Foo(myClass);
This allows the construction of fluent interfaces as stated below.
jQuery uses a .call(...)
method to assign the current node to this
inside the function you pass as the parameter.
EDIT:
Don't be afraid to look inside jQuery's code when you have a doubt, it's all in clear and well documented Javascript.
ie: the answer to this question is around line 574,
callback.call( object[ name ], name, object[ name ] ) === false
This should do the trick:
$('#some_select_box').click(function() {
$('option:selected', this ).remove();
});
There is a difference between $(this)
and event.target
, and quite a significant one. While this
(or event.currentTarget
, see below) always refers to the DOM element the listener was attached to, event.target
is the actual DOM element that was clicked. Remember that due to event bubbling, if you have
<div class="outer">
<div class="inner"></div>
</div>
and attach click listener to the outer div
$('.outer').click( handler );
then the handler
will be invoked when you click inside the outer div as well as the inner one (unless you have other code that handles the event on the inner div and stops propagation).
In this example, when you click inside the inner div, then in the handler
:
this
refers to the .outer
DOM element (because that's the object to which the handler was attached)event.currentTarget
also refers to the .outer
element (because that's the current target element handling the event)event.target
refers to the .inner
element (this gives you the element where the event originated)The jQuery wrapper $(this)
only wraps the DOM element in a jQuery object so you can call jQuery functions on it. You can do the same with $(event.target)
.
Also note that if you rebind the context of this
(e.g. if you use Backbone it's done automatically), it will point to something else. You can always get the actual DOM element from event.currentTarget
.
this
is the current Object instance. Whenever you have a non-static method, it can only be called on an instance of your object.
As an option you can initially create Null-able column, then update your table column with valid not null values and finally ALTER column to set NOT NULL constraint:
ALTER TABLE MY_TABLE ADD STAGE INT NULL
GO
UPDATE MY_TABLE SET <a valid not null values for your column>
GO
ALTER TABLE MY_TABLE ALTER COLUMN STAGE INT NOT NULL
GO
Another option is to specify correct default value for your column:
ALTER TABLE MY_TABLE ADD STAGE INT NOT NULL DEFAULT '0'
UPD: Please note that answer above contains GO
which is a must when you run this code on Microsoft SQL server. If you want to perform the same operation on Oracle or MySQL you need to use semicolon ;
like that:
ALTER TABLE MY_TABLE ADD STAGE INT NULL;
UPDATE MY_TABLE SET <a valid not null values for your column>;
ALTER TABLE MY_TABLE ALTER COLUMN STAGE INT NOT NULL;
If the date is valid then the getTime()
will always be equal to itself.
var date = new Date('2019-12-12');
if(date.getTime() - date.getTime() === 0) {
console.log('Date is valid');
} else {
console.log('Date is invalid');
}
In most cases it could be better to pad the columns only on the right so just the spacing between the columns gets padded, and the first column is still aligned with the table.
CSS:
.padding-table-columns td
{
padding:0 5px 0 0; /* Only right padding*/
}
HTML:
<table className="padding-table-columns">
<tr>
<td>Cell one</td>
<!-- There will be a 5px space here-->
<td>Cell two</td>
<!-- There will be an invisible 5px space here-->
</tr>
</table>
The complement of a regular language is also a regular language, but to construct it you have to build the DFA for the regular language, and make any valid state change into an error. See this for an example. What the page doesn't say is that it converted /(ac|bd)/
into /(a[^c]?|b[^d]?|[^ab])/
. The conversion from a DFA back to a regular expression is not trivial. It is easier if you can use the regular expression unchanged and change the semantics in code, like suggested before.
If Publishing in Visual Studio 2012 when erroring try unchecking the "Procompile during publishing" option in the Publish wizard.
Thanks Friend, i got an answer. This is only possible because of your help. you all give me a ray of hope towards resolving this problem.
Here is the code:
package facebook;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.interactions.Actions;
public class Facebook {
public static void main(String args[]){
WebDriver driver = new FirefoxDriver();
driver.get("http://www.facebook.com");
WebElement email= driver.findElement(By.id("email"));
Actions builder = new Actions(driver);
Actions seriesOfActions = builder.moveToElement(email).click().sendKeys(email, "[email protected]");
seriesOfActions.perform();
WebElement pass = driver.findElement(By.id("pass"));
WebElement login =driver.findElement(By.id("u_0_b"));
Actions seriesOfAction = builder.moveToElement(pass).click().sendKeys(pass, "naveench").click(login);
seriesOfAction.perform();
driver.
}
}
$('div#imageContainer').click(function () {
$('div#imageContainerimg').attr('src', 'YOUR NEW IMAGE URL HERE');
});
For rooted users :whats app store all message and contacts in msgstore.db and wa.db files in plain text.These files are available in /data/data/com.whatsapp/databases/. you can open these files using any sqlite browser like SQLite Database Browser.
I think you should be able to follow the method used in this post. It looks really ugly, but I would think you could do it twice and get the result you want.
I wonder if this is actually a case where you'd be better off using DataContext.ExecuteCommand(...)
instead of converting to linq.
Use this :
private string GetAlbumRSS(SyndicationItem album)
{
string url = "";
foreach (SyndicationElementExtension ext in album.ElementExtensions)
if (ext.OuterName == "itemRSS") url = ext.GetObject<string>();
return (url);
}
protected void Page_Load(object sender, EventArgs e)
{
string albumRSS;
string url = "http://www.SomeSite.com/rss?";
XmlReader r = XmlReader.Create(url);
SyndicationFeed albums = SyndicationFeed.Load(r);
r.Close();
foreach (SyndicationItem album in albums.Items)
{
cell.InnerHtml = cell.InnerHtml +string.Format("<br \'><a href='{0}'>{1}</a>", album.Links[0].Uri, album.Title.Text);
albumRSS = GetAlbumRSS(album);
}
}
Try this:
link href="styles/style.css?=time()" rel="stylesheet" type="text/css"
If you need something after the '?' that is different every time the page is accessed then the time()
will do it. Leaving this in your code permanently is not really a good idea since it will only slow down page loading and probably isn't necessary.
I've found that forcing a style sheet refresh is helpful if you've made extensive changes to a page's layout and accessing the new style sheet is vital to having something sensible appear on the screen.
What about Regex.Replace solution?
myStr = Regex.Replace(myStr, "\s", "")
Very late but I apologize. Sorry if this is "inefficient" but if you found all the above not working, do try this. Works for above 1.10 also
<script>
$(document).ready(function() {
var position='expanded';
$("#topbar").click(function() {
if (position=='expanded') {
$(this).animate({height:'200px'});
position='collapsed';
} else {
$(this).animate({height:'400px'});
position='expanded';
}
});
});
</script>
Once I found what format it was looking for in the connection string, it worked just fine like this with Oracle.ManagedDataAccess. Without having to mess around with anything separately.
DATA SOURCE=DSDSDS:1521/ORCL;
To quote from man rand :
The srand() function sets its argument as the seed for a new sequence of pseudo-random integers to be returned by rand(). These sequences are repeatable by calling srand() with the same seed value.
If no seed value is provided, the rand() function is automatically seeded with a value of 1.
So, with no seed value, rand()
assumes the seed as 1 (every time in your case) and with the same seed value, rand()
will produce the same sequence of numbers.
Further more to the Above Accepted Answer
For those who were wondering about :=
& =
Significant difference between :=
and =
, and that is that :=
works as a variable-assignment operator everywhere, while =
only works that way in SET statements, and is a comparison operator everywhere else.
So SELECT @var = 1 + 1;
will leave @var
unchanged and return a boolean (1 or 0 depending on the current value of @var), while SELECT @var := 1 + 1;
will change @var
to 2, and return 2.
[Source]
I found one way to access the shared folder without giving the username and password.
We need to change the share folder protect settings in the machine where the folder has been shared.
Go to Control Panel > Network and sharing center > Change advanced sharing settings > Enable Turn Off password protect sharing option.
By doing the above settings we can access the shared folder without any username/password.
Note that the link you provided does is not an HTML page, but rather a JSON document. The formatting is done by the browser.
You have to decide if:
If you want 1., just tell your application to render a response body with the JSON, set the MIME type (application/json), etc. In this case, formatting is dealt by the browser (and/or browser plugins)
If 2., it's a matter of rendering a simple minimal HTML page with the JSON where you can highlight it in several ways:
If you give more details about your stack, it's easier to provide examples or resources.
EDIT: For client side JS highlighting you can try higlight.js, for instance.
table tr td:nth-child(2) {
background: #ccc;
}
Working example: http://jsfiddle.net/gqr3J/
Solution #1: Your statement
.Range(Cells(RangeStartRow, RangeStartColumn), Cells(RangeEndRow, RangeEndColumn)).PasteSpecial xlValues
does not refer to a proper Range
to act upon. Instead,
.Range(.Cells(RangeStartRow, RangeStartColumn), .Cells(RangeEndRow, RangeEndColumn)).PasteSpecial xlValues
does (and similarly in some other cases).
Solution #2:
Activate Worksheets("Cable Cards")
prior to using its cells.
Explanation:
Cells(RangeStartRow, RangeStartColumn)
(e.g.) gives you a Range
, that would be ok, and that is why you often see Cells
used in this way. But since it is not applied to a specific object, it applies to the ActiveSheet
. Thus, your code attempts using .Range(rng1, rng2)
, where .Range
is a method of one Worksheet
object and rng1
and rng2
are in a different Worksheet
.
There are two checks that you can do to make this quite evident:
Activate your Worksheets("Cable Cards")
prior to executing your Sub
and it will start working (now you have well-formed references to Range
s). For the code you posted, adding .Activate
right after With...
would indeed be a solution, although you might have a similar problem somewhere else in your code when referring to a Range
in another Worksheet
.
With a sheet other than Worksheets("Cable Cards")
active, set a breakpoint at the line throwing the error, start your Sub
, and when execution breaks, write at the immediate window
Debug.Print Cells(RangeStartRow, RangeStartColumn).Address(external:=True)
Debug.Print .Cells(RangeStartRow, RangeStartColumn).Address(external:=True)
and see the different outcomes.
Conclusion:
Using Cells
or Range
without a specified object (e.g., Worksheet
, or Range
) might be dangerous, especially when working with more than one Sheet
, unless one is quite sure about what Sheet
is active.
I admire all these efforts to convert a menu to a menubar because I detest trying to hack CSS. It just feels like I'm meddling with powers I can't possibly ever understand! I think it's much easier to add the menubar files available at the menubar branch of jquery ui.
I downloaded the full jquery ui css bundled file from the jquery ui download site
In the head of my document I put the jquery ui css file that contains everything (I'm on version 1.9.x at the moment) followed by the specific CSS file for the menubar widget downloaded from the menubar branch of jquery ui
<link type="text/css" href="css/jquery-ui.css" rel="stylesheet" />
<link type="text/css" href="css/jquery.ui.menubar.css" rel="stylesheet" />
Don't forget the images folder with all the little icons used by jQuery UI needs to be in the same folder as the jquery-ui.css file.
Then at the end the body I have:
<script type="text/javascript" src="js/jquery-1.8.2.min.js"></script>
<script type="text/javascript" src="js/jquery-ui-1.9.0.custom.min.js"></script>
<script type="text/javascript" src="js/menubar/jquery.ui.menubar.js"></script>
That's a copy of an up-to-date version of jQuery, followed by a copy of the jQuery UI file, then the menubar module downloaded from the menubar branch of jquery ui
The menubar CSS file is refreshingly short:
.ui-menubar { list-style: none; margin: 0; padding-left: 0; }
.ui-menubar-item { float: left; }
.ui-menubar .ui-button { float: left; font-weight: normal; border-top-width: 0 !important; border-bottom-width: 0 !important; margin: 0; outline: none; }
.ui-menubar .ui-menubar-link { border-right: 1px dashed transparent; border-left: 1px dashed transparent; }
.ui-menubar .ui-menu { width: 200px; position: absolute; z-index: 9999; font-weight: normal; }
but the menubar JavaScript file is 328 lines - too long to quote here. With it, you can simply call menubar() like this example:
$("#menu").menubar({
autoExpand: true,
menuIcon: true,
buttons: true,
select: select
});
As I said, I admire all the attempts to hack the menu object to turn it into a horizontal bar, but I found all of them lacked some standard feature of a horizontal menu bar. I'm not sure why this widget is not bundled with jQuery UI yet, but presumably there are still some bugs to iron out. For instance, I tried it in IE 7 Quirks Mode and the positioning was strange, but it looks great in Firefox, Safari and IE 8+.
var results = from p in persons
group p by p.PersonID into g
select new { PersonID = g.Key, Cars = g.Select(m => m.car) };
Get or set the length of vectors (including lists) and factors, and of any other R object for which a method has been defined.
Get the length of each element of a list or atomic vector (is.atomic) as an integer or numeric vector.
To Download Specific Branch - Go To Downloads from Left panel, Select Branches on Downloads page. It will list all Branches available. Download your desired branch in zip, gz, or bz2 format.
In some case you can use this:
$('.myInput').get(0).checked = true
For toggle you can use if else with function
oneliner:
parser.add_argument('--is_debug', default=False, type=lambda x: (str(x).lower() == 'true'))
Set the style on the textbox as text-transform: uppercase?
This question has lasted for a long time but I want to pitch in something. I have been working on a Spring project challenge and I discovered that in Eclipse IDE. If you are using Maven or Gradle for Spring Boot Rest APIs, you have to remove the Junit 4 or 5 in the build path and include Junit in your pom.xml or Gradle build file. I guess that applies to yml configuration file too.
$sql="SELECT count(*) as toplam FROM wp_postmeta WHERE meta_key='ICERIK' AND post_id=".$id;
$total = 0;
$sqls = mysql_query($sql,$conn);
if ( $sqls ) {
$total = mysql_result($sqls, 0);
};
echo "Total:".$total;`
To remove a timezone (tzinfo) from a datetime object:
# dt_tz is a datetime.datetime object
dt = dt_tz.replace(tzinfo=None)
If you are using a library like arrow, then you can remove timezone by simply converting an arrow object to to a datetime object, then doing the same thing as the example above.
# <Arrow [2014-10-09T10:56:09.347444-07:00]>
arrowObj = arrow.get('2014-10-09T10:56:09.347444-07:00')
# datetime.datetime(2014, 10, 9, 10, 56, 9, 347444, tzinfo=tzoffset(None, -25200))
tmpDatetime = arrowObj.datetime
# datetime.datetime(2014, 10, 9, 10, 56, 9, 347444)
tmpDatetime = tmpDatetime.replace(tzinfo=None)
Why would you do this? One example is that mysql does not support timezones with its DATETIME type. So using ORM's like sqlalchemy will simply remove the timezone when you give it a datetime.datetime
object to insert into the database. The solution is to convert your datetime.datetime
object to UTC (so everything in your database is UTC since it can't specify timezone) then either insert it into the database (where the timezone is removed anyway) or remove it yourself. Also note that you cannot compare datetime.datetime
objects where one is timezone aware and another is timezone naive.
##############################################################################
# MySQL example! where MySQL doesn't support timezones with its DATETIME type!
##############################################################################
arrowObj = arrow.get('2014-10-09T10:56:09.347444-07:00')
arrowDt = arrowObj.to("utc").datetime
# inserts datetime.datetime(2014, 10, 9, 17, 56, 9, 347444, tzinfo=tzutc())
insertIntoMysqlDatabase(arrowDt)
# returns datetime.datetime(2014, 10, 9, 17, 56, 9, 347444)
dbDatetimeNoTz = getFromMysqlDatabase()
# cannot compare timzeone aware and timezone naive
dbDatetimeNoTz == arrowDt # False, or TypeError on python versions before 3.3
# compare datetimes that are both aware or both naive work however
dbDatetimeNoTz == arrowDt.replace(tzinfo=None) # True
If time_created is a unix timestamp (int), you should be able to use something like this:
DELETE FROM locks WHERE time_created < (UNIX_TIMESTAMP() - 600);
(600 seconds = 10 minutes - obviously)
Otherwise (if time_created is mysql timestamp), you could try this:
DELETE FROM locks WHERE time_created < (NOW() - INTERVAL 10 MINUTE)
var obj = {
"key1" : "k1",
"key2" : "k2",
"key3" : "k3"
};
if ("key1" in obj)
console.log("has key1 in obj");
=========================================================================
To access a child key of another key
var obj = {
"key1": "k1",
"key2": "k2",
"key3": "k3",
"key4": {
"keyF": "kf"
}
};
if ("keyF" in obj.key4)
console.log("has keyF in obj");
To remove first Character of string in PHP,
$string = "abcdef";
$new_string = substr($string, 1);
echo $new_string;
Generates: "bcdef"
try this one
<dependency>
<groupId>com.hynnet</groupId>
<artifactId>oracle-driver-ojdbc6</artifactId>
<version>12.1.0.1</version>
</dependency>
I had to solve a similar problem--I wanted certain styles to only apply to mobile devices in landscape mode. Essentially the fonts and line spacing looked fine in every other context, so I just needed the one exception for mobile landscape. This media query worked perfectly:
@media all and (max-width: 600px) and (orientation:landscape)
{
/* styles here */
}
You don't really need to install or use any third party tools.
The drivers located in ...\Android\Sdk\extras\google\usb_driver
work just fine.
Step 1: In Device Manager
, Right click on the malfunctioning Android ADB Interface
driver
Step 2: Select Update Driver Software
Step 3: Select Browse my computer for driver software
Step 4: Select Let me pick from a list of device drivers on my computer
Step 5: Select Have Disk
This window pops up:
Step 6: Copy the location of the Google USB Driver (...\Android\Sdk\extras\google\usb_driver)
or browse to it.
Step 7: Click Ok
This window pops up:
Step 8: Select Android ADB Interface
and click Next
The window below pops up with a warning:
That's it. You driver installation will start and in a few seconds, you should be able to see your device
Could use vim to do this:
vim -u NONE +'1d' +'wq!' /tmp/test.txt
This should be faster, since vim won't read whole file when process.
You can use the following command to rename the column of any table in SQL Server:
exec sp_rename 'TableName.OldColumnName', 'New colunmName'
I found that DataGridViewTextBox
values and some JSON objects don't equal Null but instead are "{}"
values. Comparing them to Null doesn't work but using these do the trick:
if (cell.Value is System.DBNull)
if (cell.Value == System.DBNull.Value)
A good excerpt I found concerning the difference between Null and DBNull:
Do not confuse the notion of null in an object-oriented programming language with a DBNull object. In an object-oriented programming language, null means the absence of a reference to an object. DBNull represents an uninitialized variant or nonexistent database column.
You can learn more about the DBNull class here.
If you want to handle show/hide of IMM (virtual) keyboard window from your Activity, you'll need to subclass your layout and override onMesure method(so that you can determine the measured width and the measured height of your layout). After that set subclassed layout as main view for your Activity by setContentView(). Now you'll be able to handle IMM show/hide window events. If this sounds complicated, it's not that really. Here's the code:
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >
<EditText
android:id="@+id/SearchText"
android:text=""
android:inputType="text"
android:layout_width="fill_parent"
android:layout_height="34dip"
android:singleLine="True"
/>
<Button
android:id="@+id/Search"
android:layout_width="60dip"
android:layout_height="34dip"
android:gravity = "center"
/>
</LinearLayout>
Now inside your Activity declare subclass for your layout (main.xml)
public class MainSearchLayout extends LinearLayout {
public MainSearchLayout(Context context, AttributeSet attributeSet) {
super(context, attributeSet);
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.main, this);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
Log.d("Search Layout", "Handling Keyboard Window shown");
final int proposedheight = MeasureSpec.getSize(heightMeasureSpec);
final int actualHeight = getHeight();
if (actualHeight > proposedheight){
// Keyboard is shown
} else {
// Keyboard is hidden
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
You can see from the code that we inflate layout for our Activity in subclass constructor
inflater.inflate(R.layout.main, this);
And now just set content view of subclassed layout for our Activity.
public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
MainSearchLayout searchLayout = new MainSearchLayout(this, null);
setContentView(searchLayout);
}
// rest of the Activity code and subclassed layout...
}
From String literals:
\n
'. But, if your multi-line string has to include a backquote (`), then you will have to use an interpreted string literal:
`line one
line two ` +
"`" + `line three
line four`
You cannot directly put a backquote (`) in a raw string literal (``xx\
).
You have to use (as explained in "how to put a backquote in a backquoted string?"):
+ "`" + ...
I think it's best to create 1px nine-patch image, and use showDividers attribute in TableRow and TableLayout since they are both LinearLayouts
This code will add an event listener to the default local Inbox, then take some action on incoming emails. You need to add that action in the code below.
Private WithEvents Items As Outlook.Items
Private Sub Application_Startup()
Dim olApp As Outlook.Application
Dim objNS As Outlook.NameSpace
Set olApp = Outlook.Application
Set objNS = olApp.GetNamespace("MAPI")
' default local Inbox
Set Items = objNS.GetDefaultFolder(olFolderInbox).Items
End Sub
Private Sub Items_ItemAdd(ByVal item As Object)
On Error Goto ErrorHandler
Dim Msg As Outlook.MailItem
If TypeName(item) = "MailItem" Then
Set Msg = item
' ******************
' do something here
' ******************
End If
ProgramExit:
Exit Sub
ErrorHandler:
MsgBox Err.Number & " - " & Err.Description
Resume ProgramExit
End Sub
After pasting the code in ThisOutlookSession
module, you must restart Outlook.
Do note that on newer Apache versions the RewriteLog
and RewriteLogLevel
have been removed, and in fact will now trigger an error when trying to start Apache (at least on my XAMPP installation with Apache 2.4.2):
AH00526: Syntax error on line xx of path/to/config/file.conf: Invalid command 'RewriteLog', perhaps misspelled or defined by a module not included in the server configuration`
Instead, you're now supposed to use the general LogLevel
directive, with a level of trace1
up to trace8
. 'debug' didn't display any rewrite messages in the log for me.
Example: LogLevel warn rewrite:trace3
For the official documentation, see here.
Of course this also means that now your rewrite logs will be written in the general error log file and you'll have to sort them out yourself.
Despite this question being rather old, I had to deal with a similar warning and wanted to share what I found out.
First of all this is a warning and not an error. So there is no need to worry too much about it. Basically it means, that Tomcat does not know what to do with the source
attribute from context.
This source
attribute is set by Eclipse (or to be more specific the Eclipse Web Tools Platform) to the server.xml
file of Tomcat to match the running application to a project in workspace.
Tomcat generates a warning for every unknown markup in the server.xml
(i.e. the source
attribute) and this is the source of the warning. You can safely ignore it.
virtualenv
is a very popular tool that creates isolated Python environments for Python libraries. If you're not familiar with this tool, I highly recommend learning it, as it is a very useful tool, and I'll be making comparisons to it for the rest of this answer.
It works by installing a bunch of files in a directory (eg: env/
), and then modifying the PATH
environment variable to prefix it with a custom bin
directory (eg: env/bin/
). An exact copy of the python
or python3
binary is placed in this directory, but Python is programmed to look for libraries relative to its path first, in the environment directory. It's not part of Python's standard library, but is officially blessed by the PyPA (Python Packaging Authority). Once activated, you can install packages in the virtual environment using pip
.
pyenv
is used to isolate Python versions. For example, you may want to test your code against Python 2.7, 3.6, 3.7 and 3.8, so you'll need a way to switch between them. Once activated, it prefixes the PATH
environment variable with ~/.pyenv/shims
, where there are special files matching the Python commands (python
, pip
). These are not copies of the Python-shipped commands; they are special scripts that decide on the fly which version of Python to run based on the PYENV_VERSION
environment variable, or the .python-version
file, or the ~/.pyenv/version
file. pyenv
also makes the process of downloading and installing multiple Python versions easier, using the command pyenv install
.
pyenv-virtualenv
is a plugin for pyenv
by the same author as pyenv
, to allow you to use pyenv
and virtualenv
at the same time conveniently. However, if you're using Python 3.3 or later, pyenv-virtualenv
will try to run python -m venv
if it is available, instead of virtualenv
. You can use virtualenv
and pyenv
together without pyenv-virtualenv
, if you don't want the convenience features.
virtualenvwrapper
is a set of extensions to virtualenv
(see docs). It gives you commands like mkvirtualenv
, lssitepackages
, and especially workon
for switching between different virtualenv
directories. This tool is especially useful if you want multiple virtualenv
directories.
pyenv-virtualenvwrapper
is a plugin for pyenv
by the same author as pyenv
, to conveniently integrate virtualenvwrapper
into pyenv
.
pipenv
aims to combine Pipfile
, pip
and virtualenv
into one command on the command-line. The virtualenv
directory typically gets placed in ~/.local/share/virtualenvs/XXX
, with XXX
being a hash of the path of the project directory. This is different from virtualenv
, where the directory is typically in the current working directory. pipenv
is meant to be used when developing Python applications (as opposed to libraries). There are alternatives to pipenv
, such as poetry
, which I won't list here since this question is only about the packages that are similarly named.
pyvenv
is a script shipped with Python 3 but deprecated in Python 3.6 as it had problems (not to mention the confusing name). In Python 3.6+, the exact equivalent is python3 -m venv
.
venv
is a package shipped with Python 3, which you can run using python3 -m venv
(although for some reason some distros separate it out into a separate distro package, such as python3-venv
on Ubuntu/Debian). It serves the same purpose as virtualenv
, but only has a subset of its features (see a comparison here). virtualenv
continues to be more popular than venv
, especially since the former supports both Python 2 and 3.
This is my personal recommendation for beginners: start by learning virtualenv
and pip
, tools which work with both Python 2 and 3 and in a variety of situations, and pick up other tools once you start needing them.
You can also try this, after injecting $window service.
$window.location.reload();
You have to execute request in background. A simple way could be using an Executors :
Executors.newSingleThreadExecutor().execute {
yourDb.yourDao.yourRequest() //Replace this by your request
}
numpy.random.randint
accepts a third argument (size
) , in which you can specify the size of the output array. You can use this to create your DataFrame
-
df = pd.DataFrame(np.random.randint(0,100,size=(100, 4)), columns=list('ABCD'))
Here - np.random.randint(0,100,size=(100, 4))
- creates an output array of size (100,4)
with random integer elements between [0,100)
.
Demo -
import numpy as np
import pandas as pd
df = pd.DataFrame(np.random.randint(0,100,size=(100, 4)), columns=list('ABCD'))
which produces:
A B C D
0 45 88 44 92
1 62 34 2 86
2 85 65 11 31
3 74 43 42 56
4 90 38 34 93
5 0 94 45 10
6 58 23 23 60
.. .. .. .. ..
You can use a heredoc, which supports variable interpolation, making it look fairly neat:
function TestBlockHTML ($replStr) {
return <<<HTML
<html>
<body><h1>{$replStr}</h1>
</body>
</html>
HTML;
}
Pay close attention to the warning in the manual though - the closing line must not contain any whitespace, so can't be indented.
You have to remove the borders and add a background image on the input.
.imgClass {
background-image: url(path to image) no-repeat;
width: 186px;
height: 53px;
border: none;
}
It should be good now, normally.
Regarding the performance of a many-to-many table, if you have 2 32-bit ints linking user IDs, your basic data storage for 200,000,000 users averaging 200 friends apiece is just under 300GB.
Obviously, you would need some partitioning and indexing and you're not going to keep that in memory for all users.
Instead of manipulating PYTHONPATH
you can also create a path configuration file. First find out in which directory Python searches for this information:
python -m site --user-site
For some reason this doesn't seem to work in Python 2.7. There you can use:
python -c 'import site; site._script()' --user-site
Then create a .pth
file in that directory containing the path you want to add (create the directory if it doesn't exist).
For example:
# find directory
SITEDIR=$(python -m site --user-site)
# create if it doesn't exist
mkdir -p "$SITEDIR"
# create new .pth file with our path
echo "$HOME/foo/bar" > "$SITEDIR/somelib.pth"
Also, do not forget about mcdiff - Internal diff viewer of GNU Midnight Commander.
For example:
mcdiff file1 file2
Enjoy!
Try this :
for match in re.finditer(r"\[P[^\]]*\](.*?)\[/P\]", subject):
# match start: match.start()
# match end (exclusive): match.end()
# matched text: match.group()
With this
npm install --save core-js@^3
you now get the error
"core-js@<3 is no longer maintained and not recommended for usage due to the number of
issues. Please, upgrade your dependencies to the actual version of core-js@3"
so you might want to instead try
npm install --save core-js@3
if you're reading this post June 9 2020.
@JorgeGRC Thanks for your answer. One thing though, the "maybe" part is very important. If you do have parameter(s), you must include it/them on your template as well and be sure to specify your locals e.g. updateFn({msg: "Directive Args"}
.
Mac Users please execute the below command from terminal to disable the certificate warning.
/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --ignore-certificate-errors --ignore-urlfetcher-cert-requests &> /dev/null
Note that this will also have Google Chrome mark all HTTPS sites as insecure in the URL bar.
Alternative solution that won't append a spurious CR-LF:
$original_file ='C:\Users\abc\Desktop\File\abc.txt'
$text = [IO.File]::ReadAllText($original_file) -replace "`r`n", "`n"
[IO.File]::WriteAllText($original_file, $text)
Create the src folder in the project.
Shed Skin is "a (restricted) Python-to-C++ compiler".
You need to set up a local repository that will host such libraries. There are a number of projects that do exactly that. For example Artifactory.
According to http://help.encoding.com/knowledge-base/article/correct-mime-types-for-serving-video-files/, the correct mime type for .mp4
is video/mp4
Heres how I got it working power shell using pgsl connnect to a Heroku PG database:
I had to first change the client encoding to utf8 like this: \encoding UTF8
Then dumped the data to a CSV file this:
\copy (SELECT * FROM my_table) TO C://wamp64/www/spider/chebi2/dump.csv CSV DELIMITER '~'
I used ~ as the delimiter because I don't like CSV files, I usually use TSV files, but it won't let me add '\t' as the delimiter, so I used ~ because its a rarely used characeter.
Simple
var a=[{a:4}], b=[{b:5}]
angular.merge(a,b) // [{a:4, b:5}]
Tested on angular 1.4.1
It depends how many times you're going to want to find this information, if more than once:
Set<Boolean> flags = new HashSet<Boolean>(myArray);
flags.contains(false);
Otherwise a short circuited loop:
for (i = 0; i < myArray.length; i++) {
if (!myArray[i]) return false;
}
return true;
I believe this will work:
TextArea.Text = "Line 1" & vbCrLf & "Line 2"
System.Environment.NewLine could be used in place of vbCrLf if you wanted to be a little less VB6 about it.
Try this formula
=SMALL((A1,C1,E1),INDEX(FREQUENCY((A1,C1,E1),0),1)+1)
Both SMALL and FREQUENCY functions accept "unions" as arguments, i.e. single cell references separated by commas and enclosed in brackets like (A1,C1,E1).
So the formula uses FREQUENCY and INDEX to find the number of zeroes in a range and if you add 1 to that you get the k value such that the kth smallest is always the minimum value excluding zero.
I'm assuming you don't have negative numbers.....
By default, postgres tries to connect to a database with the same name as your user. To prevent this default behaviour, just specify user and database:
psql -U Username DatabaseName
This may do the trick:
import sys
if sys.version_info[0] > 2:
# py3k
pass
else:
# py2
import codecs
import warnings
def open(file, mode='r', buffering=-1, encoding=None,
errors=None, newline=None, closefd=True, opener=None):
if newline is not None:
warnings.warn('newline is not supported in py2')
if not closefd:
warnings.warn('closefd is not supported in py2')
if opener is not None:
warnings.warn('opener is not supported in py2')
return codecs.open(filename=file, mode=mode, encoding=encoding,
errors=errors, buffering=buffering)
Then you can keep you code in the python3 way.
Note that some APIs like newline
, closefd
, opener
do not work
If you place image and css folder inside a parent directory suppose assets then the following code works perfectly. Either double quote or without a double quote both work fine.
body{_x000D_
background: url("../image/bg.jpg");_x000D_
}
_x000D_
In other cases like if you call a class and try to put a background image in a particular location then you must mention height and width as well.
Docstring conventions are in PEP-257 with much more detail than PEP-8.
However, docstrings seem to be far more personal than other areas of code. Different projects will have their own standard.
I tend to always include docstrings, because they tend to demonstrate how to use the function and what it does very quickly.
I prefer to keep things consistent, regardless of the length of the string. I like how to code looks when indentation and spacing are consistent. That means, I use:
def sq(n):
"""
Return the square of n.
"""
return n * n
Over:
def sq(n):
"""Returns the square of n."""
return n * n
And tend to leave off commenting on the first line in longer docstrings:
def sq(n):
"""
Return the square of n, accepting all numeric types:
>>> sq(10)
100
>>> sq(10.434)
108.86835599999999
Raises a TypeError when input is invalid:
>>> sq(4*'435')
Traceback (most recent call last):
...
TypeError: can't multiply sequence by non-int of type 'str'
"""
return n*n
Meaning I find docstrings that start like this to be messy.
def sq(n):
"""Return the squared result.
...
The easiest way would be using Substring
string str = "AM0122200204";
string substr = str.Substring(str.Length - 3);
Using the overload with one int
as I put would get the substring
of a string
, starting from the index int
. In your case being str.Length - 3
, since you want to get the last three chars.
This two commands work for me in my project
composer require laravel/ui --dev
Then
php artisan ui:auth
Click ok and your web sites will load properly.
I think you can change your query and try it like :
$res=User::where('id',$id)->delete();
To make it more interesting and to hopefully enable less hair pulling for someone else. Using python, built dictionary for a device which we can use curl to configure.
Problem: {"timezone":"+5"} //throws an error " 5"
Solution: {"timezone":"%2B"+"5"} //Works
So, in a nutshell:
var = {"timezone":"%2B"+"5"}
json = JSONEncoder().encode(var)
subprocess.call(["curl",ipaddress,"-XPUT","-d","data="+json])
Thanks to this post!
else if(Decision >= 3)
{
exit(0);
}
I believe you are using the
echo Text >> Example.txt
function?
If so the answer would be simply adding a "." (Dot) directly after the echo with nothing else there.
Example:
echo Blah
echo Blah 2
echo. #New line is added
echo Next Blah
//If you don't have .Net 4.0 :)
public void SaveStreamToFile(Stream stream, string filename)
{
using(Stream destination = File.Create(filename))
Write(stream, destination);
}
//Typically I implement this Write method as a Stream extension method.
//The framework handles buffering.
public void Write(Stream from, Stream to)
{
for(int a = from.ReadByte(); a != -1; a = from.ReadByte())
to.WriteByte( (byte) a );
}
/*
Note, StreamReader is an IEnumerable<Char> while Stream is an IEnumbable<byte>.
The distinction is significant such as in multiple byte character encodings
like Unicode used in .Net where Char is one or more bytes (byte[n]). Also, the
resulting translation from IEnumerable<byte> to IEnumerable<Char> can loose bytes
or insert them (for example, "\n" vs. "\r\n") depending on the StreamReader instance
CurrentEncoding.
*/
Unfortunately the best way would be to check for that directory. I am not sure what you mean but "actually installed" as .NET 3.5 uses the same CLR as .NET 3.0 and .NET 2.0 so all new functionality is wrapped up in new assemblies that live in that directory. Basically, if the directory is there then 3.5 is installed.
Only thing I would add is to find the dir this way for maximum flexibility:
%windir%\Microsoft.NET\Framework\v3.5
Try this piece of code, it worked for me:
$('#year').datepicker({
format: "yyyy",
viewMode: "years",
minViewMode: "years"
});
I hope it will do magic also for you.
To generate a number between 10 to 20 inclusive, you can use java.util.Random
int myNumber = new Random().nextInt(11) + 10
If you want to plot lines instead of points, see this example, modified here to plot good/bad points representing a function as a black/red as appropriate:
def plot(xx, yy, good):
"""Plot data
Good parts are plotted as black, bad parts as red.
Parameters
----------
xx, yy : 1D arrays
Data to plot.
good : `numpy.ndarray`, boolean
Boolean array indicating if point is good.
"""
import numpy as np
import matplotlib.pyplot as plt
fig, ax = plt.subplots()
from matplotlib.colors import from_levels_and_colors
from matplotlib.collections import LineCollection
cmap, norm = from_levels_and_colors([0.0, 0.5, 1.5], ['red', 'black'])
points = np.array([xx, yy]).T.reshape(-1, 1, 2)
segments = np.concatenate([points[:-1], points[1:]], axis=1)
lines = LineCollection(segments, cmap=cmap, norm=norm)
lines.set_array(good.astype(int))
ax.add_collection(lines)
plt.show()
$Menu = new Admin_Model_DbTable_Menu();
$row = $Menu->fetchRow($Menu->select()->where('id = ?', $id));
$Addmenu = new Admin_Form_Addmenu();
$Addmenu->populate($row->toArray());
This method was posted by @lauthiamkok in the comments. I'm posting it here as an answer to call more attention to it.
Depending on your needs, you should consider using filter_var()
with the FILTER_VALIDATE_BOOLEAN
flag.
filter_var( true, FILTER_VALIDATE_BOOLEAN); // true
filter_var( 'true', FILTER_VALIDATE_BOOLEAN); // true
filter_var( 1, FILTER_VALIDATE_BOOLEAN); // true
filter_var( '1', FILTER_VALIDATE_BOOLEAN); // true
filter_var( 'on', FILTER_VALIDATE_BOOLEAN); // true
filter_var( 'yes', FILTER_VALIDATE_BOOLEAN); // true
filter_var( false, FILTER_VALIDATE_BOOLEAN); // false
filter_var( 'false', FILTER_VALIDATE_BOOLEAN); // false
filter_var( 0, FILTER_VALIDATE_BOOLEAN); // false
filter_var( '0', FILTER_VALIDATE_BOOLEAN); // false
filter_var( 'off', FILTER_VALIDATE_BOOLEAN); // false
filter_var( 'no', FILTER_VALIDATE_BOOLEAN); // false
filter_var('asdfasdf', FILTER_VALIDATE_BOOLEAN); // false
filter_var( '', FILTER_VALIDATE_BOOLEAN); // false
filter_var( null, FILTER_VALIDATE_BOOLEAN); // false
To sum up based on answers here and elsewhere:
For people who find this via search engines, you do not need VBA. You can just:
1.) select the query or table with your mouse
2.) click export data from the ribbon
3.) click excel from the export subgroup
4.) follow the wizard to select the output file and location.
To Access User Location in iOS 8 you will have to add,
NSLocationAlwaysUsageDescription in the Info.plist
This will ask the user for the permission to get their current location.
Lambda Expression result
var storesList = context.Stores.Select(x => new { Value= x.name,Text= x.ID }).ToList();
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
And then install wget
with brew and also enable openressl
for TLS support
brew install wget --with-libressl
It worked perfectly for me.
None of the answers given answer the original question.
The question is how to separate a div into 2 columns using css.
All of the above answers actually embed 2 divs into a single div in order to simulate 2 columns. This is a bad idea because you won't be able to flow content into the 2 columns in any dynamic fashion.
So, instead of the above, use a single div that is defined to contain 2 columns using CSS as follows...
.two-column-div {
column-count: 2;
}
assign the above as a class to a div, and it will actually flow its contents into the 2 columns. You can go further and define gaps between margins as well. Depending on the content of the div, you may need to mess with the word break values so your content doesn't get cut up between the columns.
Append "empty" row to data frame and fill selected cells:
Generate empty data frame (no rows just columns a
and b
):
import pandas as pd
col_names = ["a","b"]
df = pd.DataFrame(columns = col_names)
Append empty row at the end of the data frame:
df = df.append(pd.Series(), ignore_index = True)
Now fill the empty cell at the end (len(df)-1
) of the data frame in column a
:
df.loc[[len(df)-1],'a'] = 123
Result:
a b
0 123 NaN
And of course one can iterate over the rows and fill cells:
col_names = ["a","b"]
df = pd.DataFrame(columns = col_names)
for x in range(0,5):
df = df.append(pd.Series(), ignore_index = True)
df.loc[[len(df)-1],'a'] = 123
Result:
a b
0 123 NaN
1 123 NaN
2 123 NaN
3 123 NaN
4 123 NaN
arr = arr.filter(v => v);
as returned v
is implicity converted to truthy
The link posted by Jose has been updated and pylab now has a tight_layout()
function that does this automatically (in matplotlib version 1.1.0).
http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.tight_layout
http://matplotlib.org/users/tight_layout_guide.html#plotting-guide-tight-layout
This would also work I believe:
$('#results').on('click', '.item', function () {
var NestId = $(this).data('id');
var url = '@Html.Raw(Url.Action("Artists", new { NestId = @NestId }))';
window.location.href = url;
})
You can use this snippet with Jaydip answer for more than one button. just call it after getting a reference to the ET and Button Elements. I used vecotr button so you have to change the Button element to ImageButton:
private void setRemovableET(final EditText et, final ImageButton resetIB) {
et.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus && et.getText().toString().length() > 0)
resetIB.setVisibility(View.VISIBLE);
else
resetIB.setVisibility(View.INVISIBLE);
}
});
resetIB.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
et.setText("");
resetIB.setVisibility(View.INVISIBLE);
}
});
et.addTextChangedListener(new TextWatcher() {
@Override
public void afterTextChanged(Editable s) {}
@Override
public void beforeTextChanged(CharSequence s, int start,
int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start,
int before, int count) {
if(s.length() != 0){
resetIB.setVisibility(View.VISIBLE);
}else{
resetIB.setVisibility(View.INVISIBLE);
}
}
});
}
One can simply use the pydoc.locate
function.
from pydoc import locate
my_class = locate("module.submodule.myclass")
instance = my_class()
Split-Path $MyInvocation.MyCommand.Path -Parent
You can convert the SecretKey
to a byte array (byte[]
), then Base64 encode that to a String
. To convert back to a SecretKey
, Base64 decode the String and use it in a SecretKeySpec
to rebuild your original SecretKey
.
SecretKey to String:
// create new key
SecretKey secretKey = KeyGenerator.getInstance("AES").generateKey();
// get base64 encoded version of the key
String encodedKey = Base64.getEncoder().encodeToString(secretKey.getEncoded());
String to SecretKey:
// decode the base64 encoded string
byte[] decodedKey = Base64.getDecoder().decode(encodedKey);
// rebuild key using SecretKeySpec
SecretKey originalKey = new SecretKeySpec(decodedKey, 0, decodedKey.length, "AES");
NOTE I: you can skip the Base64 encoding/decoding part and just store the byte[]
in SQLite. That said, performing Base64 encoding/decoding is not an expensive operation and you can store strings in almost any DB without issues.
NOTE II: Earlier Java versions do not include a Base64 in one of the java.lang
or java.util
packages. It is however possible to use codecs from Apache Commons Codec, Bouncy Castle or Guava.
SecretKey to String:
// CREATE NEW KEY
// GET ENCODED VERSION OF KEY (THIS CAN BE STORED IN A DB)
SecretKey secretKey;
String stringKey;
try {secretKey = KeyGenerator.getInstance("AES").generateKey();}
catch (NoSuchAlgorithmException e) {/* LOG YOUR EXCEPTION */}
if (secretKey != null) {stringKey = Base64.encodeToString(secretKey.getEncoded(), Base64.DEFAULT)}
String to SecretKey:
// DECODE YOUR BASE64 STRING
// REBUILD KEY USING SecretKeySpec
byte[] encodedKey = Base64.decode(stringKey, Base64.DEFAULT);
SecretKey originalKey = new SecretKeySpec(encodedKey, 0, encodedKey.length, "AES");
On CENTOS 6 /etc/my.cnf , under [mysqld] section the correct syntax is:
[mysqld]
# added to avoid err "Got a packet bigger than 'max_allowed_packet' bytes"
#
net_buffer_length=1000000
max_allowed_packet=1000000000
#
$this->db->select('id, name, price, author, category, language, ISBN, publish_date');
$this->db->from('tbl_books');
Just an update of the HTML5 features is in http://www.html5rocks.com/en/tutorials/file/dndfiles/. This excellent article will explain in detail the local file access in JavaScript. Summary from the mentioned article:
The specification provides several interfaces for accessing files from a 'local' filesystem:
<input type="file" multiple>
or dragging a directory of files from the desktop).See Paul D. Waite's comment below.
Feel free to disregard this solution as subtracting a list from an Index does not preserve the order of the original Index, if that's important.
In [61]: df.reindex(columns=pd.Index(['x', 'y']).append(df.columns - ['x', 'y']))
Out[61]:
x y a b
0 3 -1 1 2
1 6 -2 2 4
2 9 -3 3 6
3 12 -4 4 8
There are various method to refresh the page in asp.net like...
Java Script
function reloadPage()
{
window.location.reload()
}
Code Behind
Response.Redirect(Request.RawUrl)
Meta Tag
<meta http-equiv="refresh" content="600"></meta>
Page Redirection
Response.Redirect("~/default.aspx"); // Or whatever your page url
I've investigated this issue, referring to the LayoutInflater docs and setting up a small sample demonstration project. The following tutorials shows how to dynamically populate a layout using LayoutInflater
.
Before we get started see what LayoutInflater.inflate()
parameters look like:
R.layout.main_page
)attachToRoot
is true
), or else simply an object that provides a set of LayoutParams
values for root of the returned hierarchy (if attachToRoot
is false
.)attachToRoot: Whether the inflated hierarchy should be attached to the root parameter? If false, root is only used to create the correct subclass of LayoutParams
for the root view in the XML.
Returns: The root View of the inflated hierarchy. If root was supplied and attachToRoot
is true
, this is root; otherwise it is the root of the inflated XML file.
Now for the sample layout and code.
Main layout (main.xml
):
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent">
</LinearLayout>
Added into this container is a separate TextView, visible as small red square if layout parameters are successfully applied from XML (red.xml
):
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="25dp"
android:layout_height="25dp"
android:background="#ff0000"
android:text="red" />
Now LayoutInflater
is used with several variations of call parameters
public class InflaterTest extends Activity {
private View view;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ViewGroup parent = (ViewGroup) findViewById(R.id.container);
// result: layout_height=wrap_content layout_width=match_parent
view = LayoutInflater.from(this).inflate(R.layout.red, null);
parent.addView(view);
// result: layout_height=100 layout_width=100
view = LayoutInflater.from(this).inflate(R.layout.red, null);
parent.addView(view, 100, 100);
// result: layout_height=25dp layout_width=25dp
// view=textView due to attachRoot=false
view = LayoutInflater.from(this).inflate(R.layout.red, parent, false);
parent.addView(view);
// result: layout_height=25dp layout_width=25dp
// parent.addView not necessary as this is already done by attachRoot=true
// view=root due to parent supplied as hierarchy root and attachRoot=true
view = LayoutInflater.from(this).inflate(R.layout.red, parent, true);
}
}
The actual results of the parameter variations are documented in the code.
SYNOPSIS: Calling LayoutInflater
without specifying root leads to inflate call ignoring the layout parameters from the XML. Calling inflate with root not equal null
and attachRoot=true
does load the layout parameters, but returns the root object again, which prevents further layout changes to the loaded object (unless you can find it using findViewById()
).
The calling convention you most likely would like to use is therefore this one:
loadedView = LayoutInflater.from(context)
.inflate(R.layout.layout_to_load, parent, false);
To help with layout issues, the Layout Inspector is highly recommended.
This library is fantastic:
https://github.com/adamschwartz/log
Use Markdown for log messages.
Try the following code:
void clean(char *var) {
int i = 0;
while(var[i] != '\0') {
var[i] = '\0';
i++;
}
}
Faced the same problem, I simply forgot to activate the transaction management with the @EnableTransactionManagement
annotation.
Ref:
function in_arrayi($needle, $haystack) {
return in_array(strtolower($needle), array_map('strtolower', $haystack));
}
Source: php.net in_array manual page.
Starting with Oracle 12c there is support for Identity columns in one of two ways:
Sequence + Table - In this solution you still create a sequence as you normally would, then you use the following DDL:
CREATE TABLE MyTable (ID NUMBER DEFAULT MyTable_Seq.NEXTVAL, ...)
Table Only - In this solution no sequence is explicitly specified. You would use the following DDL:
CREATE TABLE MyTable (ID NUMBER GENERATED AS IDENTITY, ...)
If you use the first way it is backward compatible with the existing way of doing things. The second is a little more straightforward and is more inline with the rest of the RDMS systems out there.
I had the same problem but it didn't work for Python 3. I followed this and it solved my problem:
enc = sys.getdefaultencoding()
file = open(menu, "r", encoding = enc)
You have to set the encoding when you are reading/writing the file.
You have to use a more complex function like $.ajax()
if you want to control caching on a per-request basis. Or, if you just want to turn it off for everything, put this at the top of your script:
$.ajaxSetup ({
// Disable caching of AJAX responses
cache: false
});
I used ADAL.NET/ Microsoft Identity Platform to achieve this. The advantage of using it was that we get a nice wrapper around the code to acquire AccessToken
and we get additional features like Token Cache
out-of-the-box. From the documentation:
Why use ADAL.NET ?
ADAL.NET V3 (Active Directory Authentication Library for .NET) enables developers of .NET applications to acquire tokens in order to call secured Web APIs. These Web APIs can be the Microsoft Graph, or 3rd party Web APIs.
Here is the code snippet:
// Import Nuget package: Microsoft.Identity.Client
public class AuthenticationService
{
private readonly List<string> _scopes;
private readonly IConfidentialClientApplication _app;
public AuthenticationService(AuthenticationConfiguration authentication)
{
_app = ConfidentialClientApplicationBuilder
.Create(authentication.ClientId)
.WithClientSecret(authentication.ClientSecret)
.WithAuthority(authentication.Authority)
.Build();
_scopes = new List<string> {$"{authentication.Audience}/.default"};
}
public async Task<string> GetAccessToken()
{
var authenticationResult = await _app.AcquireTokenForClient(_scopes)
.ExecuteAsync();
return authenticationResult.AccessToken;
}
}
No there isn't and it's probably not there, because there are very few valid uses for it. I would think twice before using it. Also, it is indeed easy to create yourself.
Please refer to this discussion about why it's even in .NET.
I guess UnsupportedOperationException
comes close, although it doesn't say the operation is just not implemented, but unsupported even. That could imply no valid implementation is possible. Why would the operation be unsupported? Should it even be there?
Interface segregation or Liskov substitution issues maybe?
If it's work in progress I'd go for ToBeImplementedException
, but I've never caught myself defining a concrete method and then leave it for so long it makes it into production and there would be a need for such an exception.
Run this command if your ufw(Uncomplicatd Firewall) is enabled . Add for Example port 8080
$ sudo ufw allow 8080/tcp
And you can check the status by running
$ sudo ufw status
For more info check : https://linuxhint.com/ubuntu_allow_port_firewall
Using combination pushd
, git pull
and popd
, we can achieve this functionality:
pushd <path-to-git-repo> && git pull && popd
For example:
pushd "E:\Fake Directory\gitrepo" && git pull && popd
The following code worked for me:
public vidOff() {
let stream = this.video.nativeElement.srcObject;
let tracks = stream.getTracks();
tracks.forEach(function (track) {
track.stop();
});
this.video.nativeElement.srcObject = null;
this.video.nativeElement.stop();
}
The classes of problem that are well suited for a mapreduce style solution are problems of aggregation. Of extracting data from a dataset. In C#, one could take advantage of LINQ to program in this style.
From the following article: http://codecube.net/2009/02/mapreduce-in-c-using-linq/
the GroupBy method is acting as the map, while the Select method does the job of reducing the intermediate results into the final list of results.
var wordOccurrences = words
.GroupBy(w => w)
.Select(intermediate => new
{
Word = intermediate.Key,
Frequency = intermediate.Sum(w => 1)
})
.Where(w => w.Frequency > 10)
.OrderBy(w => w.Frequency);
For the distributed portion, you could check out DryadLINQ: http://research.microsoft.com/en-us/projects/dryadlinq/default.aspx
I took Eugen Rieck's answer and worked with it. My code adds the following:
ps ax
includes grep, so I excluded it with grep -Eiv 'grep'
I've created a file, named it killserver
, here it goes:
#!/bin/bash
PROCESS_TO_KILL=bin/node
PROCESS_LIST=`ps ax | grep -Ei ${PROCESS_TO_KILL} | grep -Eiv 'grep' | awk ' { print $1;}'`
KILLED=
for KILLPID in $PROCESS_LIST; do
if [ ! -z $KILLPID ];then
kill -9 $KILLPID
echo "Killed PID ${KILLPID}"
KILLED=yes
fi
done
if [ -z $KILLED ];then
echo "Didn't kill anything"
fi
Results
? myapp git:(master) bash killserver
Killed PID 3358
Killed PID 3382
Killed
? myapp git:(master) bash killserver
Didn't kill anything
This is strange behavior and although I am unable to say why this is occurring, I can recommend some options.
First, an observation. If you include the image as Content in VS and copy it to the output directory, your code works. If the image is marked as None in VS and you copy it over, it doesn't work.
Solution 1: FileStream
The BitmapImage object accepts a UriSource or StreamSource as a parameter. Let's use StreamSource instead.
FileStream stream = new FileStream("picture.png", FileMode.Open, FileAccess.Read);
Image i = new Image();
BitmapImage src = new BitmapImage();
src.BeginInit();
src.StreamSource = stream;
src.EndInit();
i.Source = src;
i.Stretch = Stretch.Uniform;
panel.Children.Add(i);
The problem: stream stays open. If you close it at the end of this method, the image will not show up. This means that the file stays write-locked on the system.
Solution 2: MemoryStream
This is basically solution 1 but you read the file into a memory stream and pass that memory stream as the argument.
MemoryStream ms = new MemoryStream();
FileStream stream = new FileStream("picture.png", FileMode.Open, FileAccess.Read);
ms.SetLength(stream.Length);
stream.Read(ms.GetBuffer(), 0, (int)stream.Length);
ms.Flush();
stream.Close();
Image i = new Image();
BitmapImage src = new BitmapImage();
src.BeginInit();
src.StreamSource = ms;
src.EndInit();
i.Source = src;
i.Stretch = Stretch.Uniform;
panel.Children.Add(i);
Now you are able to modify the file on the system, if that is something you require.
Here's a complete working example based on your testing. Compare it to what you have currently to figure out where you are going wrong.
<html>
<head>
<title>Untitled Document</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript">
$(document).ready( function() {
$('#deletesuccess').delay(1000).fadeOut();
});
</script>
</head>
<body>
<div id=deletesuccess > hiiiiiiiiiii </div>
</body>
</html>
I always just convert a matrix:
x <- as.data.frame(matrix(nrow = 100, ncol = 10))
Another solution for maven (and a better solution, for me at least) is to use the maven repository included in the local android SDK. To do this, just add a new repository into your pom pointing at the local android SDK:
<repository>
<id>android-support</id>
<url>file://${env.ANDROID_HOME}/extras/android/m2repository</url>
</repository>
After adding this repository you can add the standard Google dependency like this:
<dependency>
<groupId>com.android.support</groupId>
<artifactId>support-v13</artifactId>
<version>${support-v13.version}</version>
</dependency>
<dependency>
<groupId>com.android.support</groupId>
<artifactId>appcompat-v7</artifactId>
<version>${appcompat-v7.version}</version>
<type>aar</type>
</dependency>
I would like to make a little bit more emphasis on some key differences between res.end()
& res.send()
with respect to response headers and why they are important.
1. res.send() will check the structure of your output and set header information accordingly.
app.get('/',(req,res)=>{
res.send('<b>hello</b>');
});
app.get('/',(req,res)=>{
res.send({msg:'hello'});
});
Where with res.end() you can only respond with text and it will not set "Content-Type"
app.get('/',(req,res)=>{
res.end('<b>hello</b>');
});
2. res.send() will set "ETag" attribute in the response header
app.get('/',(req,res)=>{
res.send('<b>hello</b>');
});
¿Why is this tag important?
The ETag HTTP response header is an identifier for a specific version of a resource. It allows caches to be more efficient, and saves bandwidth, as a web server does not need to send a full response if the content has not changed.
res.end()
will NOT set this header attribute
None of these answers are working (date today 9th Dec 2018). The correct resolution here is to add .table-responsive-sm to your table:
<table class='table table-responsive-sm'>
[Your table]
</table>
This applies the responsiveness aspect only to the SM view (mobile). So in mobile view you get the scrolling as desired and in larger views the table is not responsive and thus displayed full width, as desired.
Docs: https://getbootstrap.com/docs/4.0/content/tables/#breakpoint-specific
Use safely-turning-a-json-string-into-an-object
var jsonString = '{"id":"2231f87c-a62c-4c2c-8f5d-b76d11942301"}';
var jsonObject = (new Function("return " + jsonString))();
alert(jsonObject.id);
It is sometimes useful to force the use of a tab, if the user likes that. As Prakash stated above, this is sometimes dictated by the use of a non-user-initiated event, but there are ways around that.
For example:
$("#theButton").button().click( function(event) {
$.post( url, data )
.always( function( response ) {
window.open( newurl + response, '_blank' );
} );
} );
will always open "newurl" in a new browser window since the "always" function is not considered user-initiated. However, if we do this:
$("#theButton").button().click( function(event) {
var newtab = window.open( '', '_blank' );
$.post( url, data )
.always( function( response ) {
newtab.location = newurl + response;
} );
} );
we open the new browser window or create the new tab, as determined by the user preference in the button click which IS user-initiated. Then we just set the location to the desired URL after returning from the AJAX post. Voila, we force the use of a tab if the user likes that.
Not sure if you can apply port mapping a running container. You can apply port forwarding while running a container which is different than creating a new container.
$ docker run -p <public_port>:<private_port> -d <image>
will start running container. This tutorial explains port redirection.
Here is an example where the things to add come from a dictionary
>>> L = [0, 0, 0, 0]
>>> things_to_add = ({'idx':1, 'amount': 1}, {'idx': 2, 'amount': 1})
>>> for item in things_to_add:
... L[item['idx']] += item['amount']
...
>>> L
[0, 1, 1, 0]
Here is an example adding elements from another list
>>> L = [0, 0, 0, 0]
>>> things_to_add = [0, 1, 1, 0]
>>> for idx, amount in enumerate(things_to_add):
... L[idx] += amount
...
>>> L
[0, 1, 1, 0]
You could also achieve the above with a list comprehension and zip
L[:] = [sum(i) for i in zip(L, things_to_add)]
Here is an example adding from a list of tuples
>>> things_to_add = [(1, 1), (2, 1)]
>>> for idx, amount in things_to_add:
... L[idx] += amount
...
>>> L
[0, 1, 1, 0]
varbinary(max)
is the way to go (introduced in SQL Server 2005)
String literals are not stored on the stack. Never. In fact, no objects are stored on the stack.
String literals (or more accurately, the String objects that represent them) are were historically stored in a Heap called the "permgen" heap. (Permgen is short for permanent generation.)
Under normal circumstances, String literals and much of the other stuff in the permgen heap are "permanently" reachable, and are not garbage collected. (For instance, String literals are always reachable from the code objects that use them.) However, you can configure a JVM to attempt to find and collect dynamically loaded classes that are no longer needed, and this may cause String literals to be garbage collected.
CLARIFICATION #1 - I'm not saying that Permgen doesn't get GC'ed. It does, typically when the JVM decides to run a Full GC. My point is that String literals will be reachable as long as the code that uses them is reachable, and the code will be reachable as long as the code's classloader is reachable, and for the default classloaders, that means "for ever".
CLARIFICATION #2 - In fact, Java 7 and later uses the regular heap to hold the string pool. Thus, String objects that represent String literals and intern'd strings are actually in the regular heap. (See @assylias's Answer for details.)
But I am still trying to find out thin line between storage of string literal and string created with
new
.
There is no "thin line". It is really very simple:
String
objects that represent / correspond to string literals are held in the string pool.String
objects that were created by a String::intern
call are held in the string pool.String
objects are NOT held in the string pool.Then there is the separate question of where the string pool is "stored". Prior to Java 7 it was the permgen heap. From Java 7 onwards it is the main heap.
JSONObject site = (JSONObject)jsonSites.get(i); // Exception happens here.
The return type of jsonSites.get(i)
is JSONArray
not JSONObject
.
Because sites have two '[', two means there are two arrays here.
To make the text portion of a ComboBox non-editable, set the DropDownStyle property to "DropDownList". The ComboBox is now essentially select-only for the user. You can do this in the Visual Studio designer, or in C# like this:
stateComboBox.DropDownStyle = ComboBoxStyle.DropDownList;
Link to the documentation for the ComboBox DropDownStyle property on MSDN.
for line in f
reads all file to a memory, and that can be a problem.
My offer is to change the original source by replacing stripping and checking for empty line. Because if it is not last line - You will receive at least newline character in it ('\n'). And '.strip()' removes it. But in last line of a file You will receive truely empty line, without any characters. So the following loop will not give You false EOF, and You do not waste a memory:
with open("blablabla.txt", "r") as fl_in:
while True:
line = fl_in.readline()
if not line:
break
line = line.strip()
# do what You want
You don't need to convert it
switch(op)
{
case Operator.PLUS:
{
// your code
// for plus operator
break;
}
case Operator.MULTIPLY:
{
// your code
// for MULTIPLY operator
break;
}
default: break;
}
By the way, use brackets
If you update a submodule and commit to it, you need to go to the containing, or higher level repo and add the change there.
git status
will show something like:
modified:
some/path/to/your/submodule
The fact that the submodule is out of sync can also be seen with
git submodule
the output will show:
+afafaffa232452362634243523 some/path/to/your/submodule
The plus indicates that the your submodule is pointing ahead of where the top repo expects it to point to.
simply add this change:
git add some/path/to/your/submodule
and commit it:
git commit -m "referenced newer version of my submodule"
When you push up your changes, make sure you push up the change in the submodule first and then push the reference change in the outer repo. This way people that update will always be able to successfully run
git submodule update
More info on submodules can be found here http://progit.org/book/ch6-6.html.
Set Cookie?
res.cookie('cookieName', 'cookieValue')
Read Cookie?
req.cookies
Demo
const express('express')
, cookieParser = require('cookie-parser'); // in order to read cookie sent from client
app.get('/', (req,res)=>{
// read cookies
console.log(req.cookies)
let options = {
maxAge: 1000 * 60 * 15, // would expire after 15 minutes
httpOnly: true, // The cookie only accessible by the web server
signed: true // Indicates if the cookie should be signed
}
// Set cookie
res.cookie('cookieName', 'cookieValue', options) // options is optional
res.send('')
})
You should not try to use perfmon, task manager or any tool like that to determine memory leaks. They are good for identifying trends, but not much else. The numbers they report in absolute terms are too vague and aggregated to be useful for a specific task such as memory leak detection.
A previous reply to this question has given a great explanation of what the various types are.
You ask about a tool recommendation: I recommend Memory Validator. Capable of monitoring applications that make billions of memory allocations.
http://www.softwareverify.com/cpp/memory/index.html
Disclaimer: I designed Memory Validator.
This will help you.
import java.nio.ByteBuffer;
import java.util.Arrays;
public class MyClass
{
public static void main(String args[]) {
byte [] hbhbytes = ByteBuffer.allocate(4).putInt(16666666).array();
System.out.println(Arrays.toString(hbhbytes));
}
}
This is basically Muhammad Saqib's answer except two diffs:
1: Adds width and height function parameters.
2: This is a small nuance which can be ignored... Saying 'As Bitmap', instead of 'As Image'. 'As Image' does work just fine. I just prefer to match Return
types. See Image VS Bitmap Class.
Public Shared Function ResizeImage(ByVal InputBitmap As Bitmap, width As Integer, height As Integer) As Bitmap
Return New Bitmap(InputImage, New Size(width, height))
End Function
Ex.
Dim someimage As New Bitmap("C:\somefile")
someimage = ResizeImage(someimage,800,600)
You can try onload event as well;
var createIframe = function (src) {
var self = this;
$('<iframe>', {
src: src,
id: 'iframeId',
frameborder: 1,
scrolling: 'no',
onload: function () {
self.isIframeLoaded = true;
console.log('loaded!');
}
}).appendTo('#iframeContainer');
};
This is not possible with native HTML input elements. You can use webshim polyfill, which gives you this option by using this markup.
<input type="date" data-date-inline-picker="true" />
Here is a small demo
Have a look:
Syntax (Via Composer):
composer create-project laravel/laravel {directory} 4.2 --prefer-dist
Example:
composer create-project laravel/laravel my_laravel_dir 4.2
Where 4.2 is your version of laravel.
Note: It will take the latest version of Laravel automatically If you will not provide any version.
Groovy accepts nearly all Java syntax, so there is a spectrum of choices, as illustrated below:
// Java syntax
Map<String,List> map1 = new HashMap<>();
List list1 = new ArrayList();
list1.add("hello");
map1.put("abc", list1);
assert map1.get("abc") == list1;
// slightly less Java-esque
def map2 = new HashMap<String,List>()
def list2 = new ArrayList()
list2.add("hello")
map2.put("abc", list2)
assert map2.get("abc") == list2
// typical Groovy
def map3 = [:]
def list3 = []
list3 << "hello"
map3.'abc'= list3
assert map3.'abc' == list3
Very simple option in case you have many individual columns to delete in a data table and you want to avoid typing in all column names #careadviced
dt <- dt[, -c(1,4,6,17,83,104)]
This will remove columns based on column number instead.
It's obviously not as efficient because it bypasses data.table advantages but if you're working with less than say 500,000 rows it works fine
A view is simply any SELECT
query that has been given a name and saved in the database. For this reason, a view is sometimes called a named query or a stored query. To create a view, you use the SQL syntax:
CREATE OR REPLACE VIEW <view_name> AS
SELECT <any valid select query>;
Check the documentation for the best result:
@forelse($status->replies as $reply)
<p>{{ $reply->body }}</p>
@empty
<p>No replies</p>
@endforelse
The above method works good.
Another method (I am assuming web here) is to create your page. Add controls to the page. Then while in design mode go to: Tools > Generate Local Resource. A resource file will automatically appear in the solution with all the controls in the page mapped in the resource file.
To create resources for other languages, append the 4 character language to the end of the file name, before the extension (Account.aspx.en-US.resx, Account.aspx.es-ES.resx...etc).
To retrieve specific entries in the code-behind, simply call this method: GetLocalResourceObject([resource entry key/name])
.
For Oracle 11g this may not work as you may receive an error like below
Error report:
SQL Error: ORA-00026: missing or invalid session ID
00026. 00000 - "missing or invalid session ID"
*Cause: Missing or invalid session ID string for ALTER SYSTEM KILL SESSION.
*Action: Retry with a valid session ID.
To rectify this, use below code to identify the sessions
SQL> select inst_id,sid,serial# from gv$session
or v$session
NOTE : v$session do not have inst_id field
and Kill them using
alter system kill session 'sid,serial,@inst_id' IMMEDIATE;
Had the same problem and the solution was to reauthorize the user. Check it here:
<?php
require_once("src/facebook.php");
$config = array(
'appId' => '1424980371051918',
'secret' => '2ed5c1260daa4c44673ba6fbc348c67d',
'fileUpload' => false // optional
);
$facebook = new Facebook($config);
//Authorizing app:
?>
<a href="<?php echo $facebook->getLoginUrl(); ?>">Login con fb</a>
Saved project and opened on my test enviroment and it worked again. As I did, you can comment your previous code and try.
Just for newcomers.
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
Here's an example selenium code snippet that you could use for this type of purpose. It goes to the url for youtube search results on 'Enumerate python tutorial' and scrolls down until it finds the video with the title: 'Enumerate python tutorial(2020).'
driver.get('https://www.youtube.com/results?search_query=enumerate+python')
target = driver.find_element_by_link_text('Enumerate python tutorial(2020).')
target.location_once_scrolled_into_view
Each directive's pre-link
function is called whenever a new related element is instantiated.
As seen previously in the compilation order section, pre-link
functions are called parent-then-child, whereas post-link
functions are called child-then-parent
.
The pre-link
function is rarely used, but can be useful in special scenarios; for example, when a child controller registers itself with the parent controller, but the registration has to be in a parent-then-child
fashion (ngModelController
does things this way).
I find exporting the packages in string format only is more portable than exporting the whole conda
environment. As the previous answer already suggested:
$ conda list -e > requirements.txt
However, this requirements.txt
contains build numbers which are not portable between operating systems, e.g. between Mac
and Ubuntu
. In conda env export
we have the option --no-builds
but not with conda list -e
, so we can remove the build number by issuing the following command:
$ sed -i -E "s/^(.*\=.*)(\=.*)/\1/" requirements.txt
And recreate the environment on another computer:
conda create -n recreated_env --file requirements.txt
To turn off line numbering, again follow the preceding instructions, except this time enter the following line at the : prompt:
set nonumber
This is my solution:
public static int hex2decimal(String s) {
int val = 0;
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
int num = (int) c;
val = 256*val + num;
}
return val;
}
For example to convert 3E8 to 1000:
StringBuffer sb = new StringBuffer();
sb.append((char) 0x03);
sb.append((char) 0xE8);
int n = hex2decimal(sb.toString());
System.out.println(n); //will print 1000.
Apparently, you did it right. But here is a list of things you'll need with examples from a working application:
1) A context.xml file in META-INF, specifying your data source:
<Context>
<Resource
name="jdbc/DsWebAppDB"
auth="Container"
type="javax.sql.DataSource"
username="sa"
password=""
driverClassName="org.h2.Driver"
url="jdbc:h2:mem:target/test/db/h2/hibernate"
maxActive="8"
maxIdle="4"/>
</Context>
2) web.xml which tells the container that you are using this resource:
<resource-env-ref>
<resource-env-ref-name>jdbc/DsWebAppDB</resource-env-ref-name>
<resource-env-ref-type>javax.sql.DataSource</resource-env-ref-type>
</resource-env-ref>
3) Hibernate configuration which consumes the data source. In this case, it's a persistence.xml
, but it's similar in hibernate.cfg.xml
<persistence-unit name="dswebapp">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" />
<property name="hibernate.connection.datasource" value="java:comp/env/jdbc/DsWebAppDB"/>
</properties>
</persistence-unit>
You need to overload operator <<
for mystruct
class
Something like :-
friend ostream& operator << (ostream& os, const mystruct& m)
{
os << m.m_a <<" " << m.m_b << endl;
return os ;
}
See here
@unutbu's answer is quite close to the right answer.
By default, plt.imshow() will try to scale your (MxN) array data to 0.0~1.0. And then map to 0~255. For most natural taken images, this is fine, you won't see a different. But if you have narrow range of pixel value image, say the min pixel is 156 and the max pixel is 234. The gray image will looks totally wrong. The right way to show an image in gray is
from matplotlib.colors import NoNorm
...
plt.imshow(img,cmap='gray',norm=NoNorm())
...
Let's see an example:
this is the origianl image: original
this is using defaul norm setting,which is None: wrong pic
this is using NoNorm setting,which is NoNorm(): right pic
I generally install Apache + PHP + MySQL by-hand, not using any package like those you're talking about.
It's a bit more work, yes; but knowing how to install and configure your environment is great -- and useful.
The first time, you'll need maybe half a day or a day to configure those. But, at least, you'll know how to do so.
And the next times, things will be far more easy, and you'll need less time.
Else, you might want to take a look at Zend Server -- which is another package that bundles Apache + PHP + MySQL.
Or, as an alternative, don't use Windows.
If your production servers are running Linux, why not run Linux on your development machine?
And if you don't want to (or cannot) install Linux on your computer, use a Virtual Machine.
In PowerShell 3, $PsScriptRoot
or for your question of two parents up,
$dir = ls "$PsScriptRoot\..\.."
I always stick this as one line. Now params has the vars:
params={};location.search.replace(/[?&]+([^=&]+)=([^&]*)/gi,function(s,k,v){params[k]=v})
multi-lined:
var params={};
window.location.search
.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(str,key,value) {
params[key] = value;
}
);
as a function
function getSearchParams(k){
var p={};
location.search.replace(/[?&]+([^=&]+)=([^&]*)/gi,function(s,k,v){p[k]=v})
return k?p[k]:p;
}
which you could use as:
getSearchParams() //returns {key1:val1, key2:val2}
or
getSearchParams("key1") //returns val1
Two one liners - I suspect the first one is faster but second one is prettier and unlike end()
and array_pop()
, you can pass the result of a function directly to current()
without generating any notice or warning since it doesn't move the pointer or alter the array.
$var = 'http://www.vimeo.com/1234567';
// VERSION 1 - one liner simmilar to DisgruntledGoat's answer above
echo substr($a,(strrpos($var,'/') !== false ? strrpos($var,'/') + 1 : 0));
// VERSION 2 - explode, reverse the array, get the first index.
echo current(array_reverse(explode('/',$var)));
Here I propose a way to do this exclusively using the Bootstrap framework built-in functionality.
div
has an ID.class
"collapse", this will hide your block by
default. If you want your div to be collapsible AND be shown by
default you need to add "in" class to the collapse. Otherwise the
toggle behavior will not work properly.data-toggle="collapse"
to instruct
Bootstrap to add an appropriate toggle script to this tag.Here is a code sample than can be copy-pasted directly on a page that already includes Bootstrap framework (up to version 3.4.1):
<a href="#Foo" class="btn btn-default" data-toggle="collapse">Toggle Foo</a>
<button href="#Bar" class="btn btn-default" data-toggle="collapse">Toggle Bar</button>
<div id="Foo" class="collapse">
This div (Foo) is hidden by default
</div>
<div id="Bar" class="collapse in">
This div (Bar) is shown by default and can toggle
</div>
If you are using kotlin,consider these library. It's build for kotlin language.
AndroidHttpServer is a simple demo using ServerSocket to handle http request
https://github.com/weeChanc/AndroidHttpServer
https://github.com/ktorio/ktor
AndroidHttpServer is very small , but the feature is less as well.
Ktor is a very nice library,and the usage is simple too
If it is possible for you to use your own list bullets
Try this:
<html>
<head>
<style type="text/css">
ul {
margin:0;
padding:0;
text-align: center;
list-style:none;
}
ul li {
padding: 2px 5px;
}
ul li:before {
content:url(http://www.un.org/en/oaj/unjs/efiling/added/images/bullet-list-icon-blue.jpg);;
}
</style>
</head>
<body>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
</body>
</html>
How about something trivial like:
inverting:
$num = -$num;
converting only positive into negative:
if ($num > 0) $num = -$num;
converting only negative into positive:
if ($num < 0) $num = -$num;
let url = item.product_image_urls.filter(arr=>arr.match("homepage")!==null)
Filter array with string match. It is easy and one line code.
On strings and memory allocation:
A string in C is just a sequence of char
s, so you can use char *
or a char
array wherever you want to use a string data type:
typedef struct {
int number;
char *name;
char *address;
char *birthdate;
char gender;
} patient;
Then you need to allocate memory for the structure itself, and for each of the strings:
patient *createPatient(int number, char *name,
char *addr, char *bd, char sex) {
// Allocate memory for the pointers themselves and other elements
// in the struct.
patient *p = malloc(sizeof(struct patient));
p->number = number; // Scalars (int, char, etc) can simply be copied
// Must allocate memory for contents of pointers. Here, strdup()
// creates a new copy of name. Another option:
// p->name = malloc(strlen(name)+1);
// strcpy(p->name, name);
p->name = strdup(name);
p->address = strdup(addr);
p->birthdate = strdup(bd);
p->gender = sex;
return p;
}
If you'll only need a few patient
s, you can avoid the memory management at the expense of allocating more memory than you really need:
typedef struct {
int number;
char name[50]; // Declaring an array will allocate the specified
char address[200]; // amount of memory when the struct is created,
char birthdate[50]; // but pre-determines the max length and may
char gender; // allocate more than you need.
} patient;
On linked lists:
In general, the purpose of a linked list is to prove quick access to an ordered collection of elements. If your llist
contains an element called num
(which presumably contains the patient number), you need an additional data structure to hold the actual patient
s themselves, and you'll need to look up the patient number every time.
Instead, if you declare
typedef struct llist
{
patient *p;
struct llist *next;
} list;
then each element contains a direct pointer to a patient
structure, and you can access the data like this:
patient *getPatient(list *patients, int num) {
list *l = patients;
while (l != NULL) {
if (l->p->num == num) {
return l->p;
}
l = l->next;
}
return NULL;
}
index.html
<!DOCTYPE html>
<html>
<body>
<form action="submit.php" method="POST">
First name: <input type="text" name="firstname" /><br /><br />
Last name: <input type="text" name="lastname" /><br />
<input type="submit" value="Submit" />
</form>
</body>
</html>
After that one more file which page you want to display after pressing the submit button
submit.php
<html>
<body>
Your First Name is - <?php echo $_POST["firstname"]; ?><br>
Your Last Name is - <?php echo $_POST["lastname"]; ?>
</body>
</html>
Try this...
<script type="text/javascript">
$("#form_oferta").submit(function(event)
{
var myData = $( form ).serialize();
$.ajax({
type: "POST",
contentType:attr( "enctype", "multipart/form-data" ),
url: " URL Goes Here ",
data: myData,
success: function( data )
{
alert( data );
}
});
return false;
});
</script>
Here the contentType
is specified as multipart/form-data
as we do in the form tag, this will work to upload simple file
On server side you just need to write simple file upload code to handle this request with echoing message you want to show to user as a response.
1) remove the apk from this directory project/build/outputs/apk
2) If you using genymotion emulator restart the genymotion
3) make project & rebuild the project
4) Run Again
Yet another answer (in January 2018) to the old question (in January 2009).
The specification of Java properties file is described in the JavaDoc of java.util.Properties.load(java.io.Reader)
. One problem is that the specification is a bit complicated than the first impression we may have. Another problem is that some answers here arbitrarily added extra specifications - for example, ;
and '
are regarded as starters of comment lines but they should not be. Double/single quotations around property values are removed but they should not be.
The following are points to be considered.
\n
, \r
, \r\n
or the end of the stream.\
.
, \u0020
), tab (\t
, \u0009
) and form feed (\f
, \u000C
).=
is used as the separator between a key and a value.:
is used as the separator between a key and a value, too.#
or !
as its first non-white space characters, meaning leading white spaces before #
or !
are allowed.\
.=
, :
and white spaces can be embedded in a key if they are escaped by backslashes.\r
and \n
escape sequences.\uxxxx
is used to represent a Unicode character.So, for example, if test.properties
has the following content:
# A comment line that starts with '#'.
# This is a comment line having leading white spaces.
! A comment line that starts with '!'.
key1=value1
key2 : value2
key3 value3
key\
4=value\
4
\u006B\u0065\u00795=\u0076\u0061\u006c\u0075\u00655
\k\e\y\6=\v\a\lu\e\6
\:\ \= = \\colon\\space\\equal
it should be interpreted as the following key-value pairs.
+------+--------------------+
| KEY | VALUE |
+------+--------------------+
| key1 | value1 |
| key2 | value2 |
| key3 | value3 |
| key4 | value4 |
| key5 | value5 |
| key6 | value6 |
| : = | \colon\space\equal |
+------+--------------------+
PropertiesLoader
class in Authlete.Authlete NuGet package can interpret the format of the specification. The example code below:
using System;
using System.IO;
using System.Collections.Generic;
using Authlete.Util;
namespace MyApp
{
class Program
{
public static void Main(string[] args)
{
string file = "test.properties";
IDictionary<string, string> properties;
using (TextReader reader = new StreamReader(file))
{
properties = PropertiesLoader.Load(reader);
}
foreach (var entry in properties)
{
Console.WriteLine($"{entry.Key} = {entry.Value}");
}
}
}
}
will generate this output:
key1 = value1
key2 = value2
key3 = value3
key4 = value4
key5 = value5
key6 = value6
: = = \colon\space\equal
An equivalent example in Java is as follows:
import java.util.*;
import java.io.*;
public class Program
{
public static void main(String[] args) throws IOException
{
String file = "test.properties";
Properties properties = new Properties();
try (Reader reader = new FileReader(file))
{
properties.load(reader);
}
for (Map.Entry<Object, Object> entry : properties.entrySet())
{
System.out.format("%s = %s\n", entry.getKey(), entry.getValue());
}
}
}
The source code, PropertiesLoader.cs
, can be found in authlete-csharp. xUnit tests for PropertiesLoader
are written in PropertiesLoaderTest.cs
.
I don't think one needs it any more. The latest versions of Eclipse have Maven plugin enabled. So you will just need to import a Maven project into Eclipse and no more as an existing project. Eclipse will create the needed .project, .settings, .classpath files based on your pom.xml and environment settings (installed Java version, etc.) . The earlier versions of Eclipse needed to have run the command mvn eclipse:eclipse
which produced the same result.
There is a browser-based implementation of VSC that allows you to run it on a browser on your Android (or any other) device. Check it out here:
If you need it for OpenGL related stuff:
/* Compute the nearest power of 2 number that is
* less than or equal to the value passed in.
*/
static GLuint
nearestPower( GLuint value )
{
int i = 1;
if (value == 0) return -1; /* Error! */
for (;;) {
if (value == 1) return i;
else if (value == 3) return i*4;
value >>= 1; i *= 2;
}
}
It's possible that other tables have FK constraint to your [table]. So the DB needs to check these tables to maintain the referential integrity. Even if you have all needed indexes corresponding these FKs, check their amount.
I had the situation when NHibernate incorrectly created duplicated FKs on the same columns, but with different names (which is allowed by SQL Server). It has drastically slowed down running of the DELETE statement.
All the answers so far don't address the trailing concern:
Is there an efficient method when there are hundreds of revisions after the one to be deleted?
The steps follow, but for reference, let's assume the following history:
[master] -> [hundreds-of-commits-including-merges] -> [C] -> [R] -> [B]
C: commit just following the commit to be removed (clean)
R: The commit to be removed
B: commit just preceding the commit to be removed (base)
Because of the "hundreds of revisions" constraint, I'm assuming the following pre-conditions:
This is a pretty restrictive set of constraints, but there is an interesting answer that actually works in this corner case.
Here are the steps:
git branch base B
git branch remove-me R
git branch save
git rebase --preserve-merges --onto base remove-me
If there are truly no conflicts, then this should proceed with no further interruptions. If there are conflicts, you can resolve them and rebase --continue
or decide to just live with the embarrassment and rebase --abort
.
Now you should be on master
that no longer has commit R in it. The save
branch points to where you were before, in case you want to reconcile.
How you want to arrange everyone else's transfer over to your new history is up to you. You will need to be acquainted with stash
, reset --hard
, and cherry-pick
. And you can delete the base
, remove-me
, and save
branches
This is a very nice and clean example:(check this great tutorial for a full explanation link)
public static IEnumerable<SelectListItem> ToSelectListItems(
this IEnumerable<Album> albums, int selectedId)
{
return
albums.OrderBy(album => album.Name)
.Select(album =>
new SelectListItem
{
Selected = (album.ID == selectedId),
Text = album.Name,
Value = album.ID.ToString()
});
}
In this MSDN link you can read de DropDownList
method documentation.
Hope it helps.
The get(String key) method of Bundle returns an Object. Your best bet is to spin over the key set calling get(String) on each key and using toString() on the Object to output them. This will work best for primitives, but you may run into issues with Objects that do not implement a toString().
Are you using php 5.4 on your local? the render line is using the new way of initializing arrays. Try replacing ["title" => "Welcome "]
with array("title" => "Welcome ")
Mutable default arguments don't generally do what you want. Instead, try this:
class Node:
def __init__(self, wordList=None, adjacencyList=None):
if wordList is None:
self.wordList = []
else:
self.wordList = wordList
if adjacencyList is None:
self.adjacencyList = []
else:
self.adjacencyList = adjacencyList
Just to say one thing, WindowsAPICodePack
can not open CommonOpenFileDialog
on Windows 7 6.1.7600.
I think an option for your purposes is git log --online --decorate
. This lets you know the checked commit, and the top commits for each branch that you have in your story line. By doing this, you have a nice view on the structure of your repo and the commits associated to a specific branch. I think reading this might help.
I am doing something similar but in C++. What you need to do is read the lines in one at a time and parse them (go over the words one by one). I have an outter loop that goes over all the lines and inside that is another loop that goes over all the words. Once the word you need is found, just exit the loop and return a counter or whatever you want.
This is my code. It basically parses out all the words and adds them to the "index". The line that word was in is then added to a vector and used to reference the line (contains the name of the file, the entire line and the line number) from the indexed words.
ifstream txtFile;
txtFile.open(path, ifstream::in);
char line[200];
//if path is valid AND is not already in the list then add it
if(txtFile.is_open() && (find(textFilePaths.begin(), textFilePaths.end(), path) == textFilePaths.end())) //the path is valid
{
//Add the path to the list of file paths
textFilePaths.push_back(path);
int lineNumber = 1;
while(!txtFile.eof())
{
txtFile.getline(line, 200);
Line * ln = new Line(line, path, lineNumber);
lineNumber++;
myList.push_back(ln);
vector<string> words = lineParser(ln);
for(unsigned int i = 0; i < words.size(); i++)
{
index->addWord(words[i], ln);
}
}
result = true;
}
The dot trick will likely ruin your rss feeds and/or pagination. These work, though:
add_filter('category_rewrite_rules', 'no_category_base_rewrite_rules');
function no_category_base_rewrite_rules($category_rewrite) {
$category_rewrite=array();
$categories=get_categories(array('hide_empty'=>false));
foreach($categories as $category) {
$category_nicename = $category->slug;
if ( $category->parent == $category->cat_ID )
$category->parent = 0;
elseif ($category->parent != 0 )
$category_nicename = get_category_parents( $category->parent, false, '/', true ) . $category_nicename;
$category_rewrite['('.$category_nicename.')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?category_name=$matches[1]&feed=$matches[2]';
$category_rewrite['('.$category_nicename.')/page/?([0-9]{1,})/?$'] = 'index.php?category_name=$matches[1]&paged=$matches[2]';
$category_rewrite['('.$category_nicename.')/?$'] = 'index.php?category_name=$matches[1]';
}
global $wp_rewrite;
$old_base = $wp_rewrite->get_category_permastruct();
$old_base = str_replace( '%category%', '(.+)', $old_base );
$old_base = trim($old_base, '/');
$category_rewrite[$old_base.'$'] = 'index.php?category_redirect=$matches[1]';
return $category_rewrite;
}
// remove tag base
add_filter('tag_rewrite_rules', 'no_tag_base_rewrite_rules');
function no_tag_base_rewrite_rules($tag_rewrite) {
$tag_rewrite=array();
$tags=get_tags(array('hide_empty'=>false));
foreach($tags as $tag) {
$tag_nicename = $tag->slug;
if ( $tag->parent == $tag->tag_ID )
$tag->parent = 0;
elseif ($tag->parent != 0 )
$tag_nicename = get_tag_parents( $tag->parent, false, '/', true ) . $tag_nicename;
$tag_rewrite['('.$tag_nicename.')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?tag=$matches[1]&feed=$matches[2]';
$tag_rewrite['('.$tag_nicename.')/page/?([0-9]{1,})/?$'] = 'index.php?tag=$matches[1]&paged=$matches[2]';
$tag_rewrite['('.$tag_nicename.')/?$'] = 'index.php?tag=$matches[1]';
}
global $wp_rewrite;
$old_base = $wp_rewrite->get_tag_permastruct();
$old_base = str_replace( '%tag%', '(.+)', $old_base );
$old_base = trim($old_base, '/');
$tag_rewrite[$old_base.'$'] = 'index.php?tag_redirect=$matches[1]';
return $tag_rewrite;
}
// remove author base
add_filter('author_rewrite_rules', 'no_author_base_rewrite_rules');
function no_author_base_rewrite_rules($author_rewrite) {
global $wpdb;
$author_rewrite = array();
$authors = $wpdb->get_results("SELECT user_nicename AS nicename from $wpdb->users");
foreach($authors as $author) {
$author_rewrite["({$author->nicename})/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$"] = 'index.php?author_name=$matches[1]&feed=$matches[2]';
$author_rewrite["({$author->nicename})/page/?([0-9]+)/?$"] = 'index.php?author_name=$matches[1]&paged=$matches[2]';
$author_rewrite["({$author->nicename})/?$"] = 'index.php?author_name=$matches[1]';
}
return $author_rewrite;}
add_filter('author_link', 'no_author_base', 1000, 2);
function no_author_base($link, $author_id) {
$link_base = trailingslashit(get_option('home'));
$link = preg_replace("|^{$link_base}author/|", '', $link);
return $link_base . $link;
}
So your endpoint address defined in your first example is incomplete. You must also define endpoint identity as shown in client configuration. In code you can try this:
EndpointIdentity spn = EndpointIdentity.CreateSpnIdentity("host/mikev-ws");
var address = new EndpointAddress("http://id.web/Services/EchoService.svc", spn);
var client = new EchoServiceClient(address);
litResponse.Text = client.SendEcho("Hello World");
client.Close();
Actual working final version by valamas
EndpointIdentity spn = EndpointIdentity.CreateSpnIdentity("host/mikev-ws");
Uri uri = new Uri("http://id.web/Services/EchoService.svc");
var address = new EndpointAddress(uri, spn);
var client = new EchoServiceClient("WSHttpBinding_IEchoService", address);
client.SendEcho("Hello World");
client.Close();
You can try the following query:
SELECT service_level, fixpack_num FROM TABLE
(sysproc.env_get_inst_info())
as INSTANCEINFO
It works on LUW, so I can't guarantee that it'll work on z/OS, but it's worth a shot.
The problem with the default VS2015 templates is that the compiler isn't actually copied to the {outdir}_PublishedWebsites\tfr\bin\roslyn\
directory, but rather the {outdir}\roslyn\
directory. This is likely different from your local environment since AppHarbor
builds apps using an output directory instead of building the solution "in-place".
To fix it, add the following towards end of .csproj
file right after xml block <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">...</Target>
<PropertyGroup>
<PostBuildEvent>
if not exist "$(WebProjectOutputDir)\bin\Roslyn" md "$(WebProjectOutputDir)\bin\Roslyn"
start /MIN xcopy /s /y /R "$(OutDir)roslyn\*.*" "$(WebProjectOutputDir)\bin\Roslyn"
</PostBuildEvent>
</PropertyGroup>
And I have created the model scope
More about scopes:
Code:
/**
* Scope a query to only include the last n days records
*
* @param \Illuminate\Database\Eloquent\Builder $query
* @return \Illuminate\Database\Eloquent\Builder
*/
public function scopeWhereDateBetween($query,$fieldName,$fromDate,$todate)
{
return $query->whereDate($fieldName,'>=',$fromDate)->whereDate($fieldName,'<=',$todate);
}
And in the controller, add the Carbon Library to top
use Carbon\Carbon;
OR
use Illuminate\Support\Carbon;
To get the last 10 days record from now
$lastTenDaysRecord = ModelName::whereDateBetween('created_at',(new Carbon)->subDays(10)->toDateString(),(new Carbon)->now()->toDateString() )->get();
To get the last 30 days record from now
$lastTenDaysRecord = ModelName::whereDateBetween('created_at',(new Carbon)->subDays(30)->toDateString(),(new Carbon)->now()->toDateString() )->get();
As @CRice said you can use the below method to get a list of dependent assembly with publicKeyToken
public static int DependencyInfo(string args)
{
Console.WriteLine(Assembly.LoadFile(args).FullName);
Console.WriteLine(Assembly.LoadFile(args).GetCustomAttributes(typeof(System.Runtime.Versioning.TargetFrameworkAttribute), false).SingleOrDefault());
try {
var assemblies = Assembly.LoadFile(args).GetReferencedAssemblies();
if (assemblies.GetLength(0) > 0)
{
foreach (var assembly in assemblies)
{
Console.WriteLine(" - " + assembly.FullName + ", ProcessorArchitecture=" + assembly.ProcessorArchitecture);
}
return 0;
}
}
catch(Exception e) {
Console.WriteLine("An exception occurred: {0}", e.Message);
return 1;
}
finally{}
return 1;
}
i generally use it as a LinqPad script you can call it as
DependencyInfo("@c:\MyAssembly.dll");
from the code
Please make sure two things:
1- Use @Bean
annotation with the method.
@Bean
public RestTemplate restTemplate(RestTemplateBuilder builder){
return builder.build();
}
2- Scope of this method should be public not private.
Complete Example -
@Service
public class MakeHttpsCallImpl implements MakeHttpsCall {
@Autowired
private RestTemplate restTemplate;
@Override
public String makeHttpsCall() {
return restTemplate.getForObject("https://localhost:8085/onewayssl/v1/test",String.class);
}
@Bean
public RestTemplate restTemplate(RestTemplateBuilder builder){
return builder.build();
}
}
<a href="..">no JS needed</a>
..
means parent directory.
This does not meet all of the requirements of RFCs 5321 and 5322, but it works with the following definitions.
@"^([0-9a-zA-Z]([\+\-_\.][0-9a-zA-Z]+)*)+"@(([0-9a-zA-Z][-\w]*[0-9a-zA-Z]*\.)+[a-zA-Z0-9]{2,17})$";
Below is the code
const String pattern =
@"^([0-9a-zA-Z]" + //Start with a digit or alphabetical
@"([\+\-_\.][0-9a-zA-Z]+)*" + // No continuous or ending +-_. chars in email
@")+" +
@"@(([0-9a-zA-Z][-\w]*[0-9a-zA-Z]*\.)+[a-zA-Z0-9]{2,17})$";
var validEmails = new[] {
"[email protected]",
"[email protected]",
"[email protected]",
"[email protected]",
"[email protected]",
"[email protected]",
"[email protected]",
"[email protected]",
"[email protected]",
"[email protected]",
"[email protected]",
};
var invalidEmails = new[] {
"Abc.example.com", // No `@`
"A@b@[email protected]", // multiple `@`
"[email protected]", // continuous multiple dots in name
"[email protected]", // only 1 char in extension
"[email protected]", // continuous multiple dots in domain
"ma@@jjf.com", // continuous multiple `@`
"@majjf.com", // nothing before `@`
"[email protected]", // nothing after `.`
"[email protected]", // nothing after `_`
"ma_@jjf", // no domain extension
"ma_@jjf.", // nothing after `_` and .
"ma@jjf.", // nothing after `.`
};
foreach (var str in validEmails)
{
Console.WriteLine("{0} - {1} ", str, Regex.IsMatch(str, pattern));
}
foreach (var str in invalidEmails)
{
Console.WriteLine("{0} - {1} ", str, Regex.IsMatch(str, pattern));
}
Yes, Spring framework logging is very detailed, You did not mention in your post, if you are already using a logging framework or not. If you are using log4j then just add spring appenders to the log4j config (i.e to log4j.xml or log4j.properties), If you are using log4j xml config you can do some thing like this
<category name="org.springframework.beans">
<priority value="debug" />
</category>
or
<category name="org.springframework">
<priority value="debug" />
</category>
I would advise you to test this problem in isolation using JUnit test, You can do this by using spring testing module in conjunction with Junit. If you use spring test module it will do the bulk of the work for you it loads context file based on your context config and starts container so you can just focus on testing your business logic. I have a small example here
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:springContext.xml"})
@Transactional
public class SpringDAOTest
{
@Autowired
private SpringDAO dao;
@Autowired
private ApplicationContext appContext;
@Test
public void checkConfig()
{
AnySpringBean bean = appContext.getBean(AnySpringBean.class);
Assert.assertNotNull(bean);
}
}
I am not advising you to change the way you load logging but try this in your dev environment, Add this snippet to your web.xml file
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/log4j.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
UPDATE log4j config file
I tested this on my local tomcat and it generated a lot of logging on application start up. I also want to make a correction: use debug not info as @Rayan Stewart mentioned.
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">
<appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
<param name="Threshold" value="debug" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern"
value="%d{HH:mm:ss} %p [%t]:%c{3}.%M()%L - %m%n" />
</layout>
</appender>
<appender name="springAppender" class="org.apache.log4j.RollingFileAppender">
<param name="file" value="C:/tomcatLogs/webApp/spring-details.log" />
<param name="append" value="true" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern"
value="%d{MM/dd/yyyy HH:mm:ss} [%t]:%c{5}.%M()%L %m%n" />
</layout>
</appender>
<category name="org.springframework">
<priority value="debug" />
</category>
<category name="org.springframework.beans">
<priority value="debug" />
</category>
<category name="org.springframework.security">
<priority value="debug" />
</category>
<category
name="org.springframework.beans.CachedIntrospectionResults">
<priority value="debug" />
</category>
<category name="org.springframework.jdbc.core">
<priority value="debug" />
</category>
<category name="org.springframework.transaction.support.TransactionSynchronizationManager">
<priority value="debug" />
</category>
<root>
<priority value="debug" />
<appender-ref ref="springAppender" />
<!-- <appender-ref ref="STDOUT"/> -->
</root>
</log4j:configuration>
Note that sometimes you will want to use the class type name inside its own definition, for example when using Python Typing module, e.g.
class Tree:
def __init__(self, left: Tree, right: Tree):
self.left = left
self.right = right
This will also result in
NameError: name 'Tree' is not defined
That's because the class has not been defined yet at this point. The workaround is using so called Forward Reference, i.e. wrapping a class name in a string, i.e.
class Tree:
def __init__(self, left: 'Tree', right: 'Tree'):
self.left = left
self.right = right
hey all everyone is over thinking this all you need to do is wrap the nav in a like below:
csscode:
#navwrap {
height: 100px; (change dependant on hight of nav)
width: 100%;
margin: 0;
padding-top: 5px;
}
HTML:
<div id="navwrap">
nav code inside
</div>