While the other answers seem to make it pretty clear that there is generally no reason to use non-static constants, I couldn't find anyone pointing out that it is possible to have various instances with different values on their constant variables.

Consider the following example:

public class TestClass {
    private final static double NUMBER = Math.random();

    public TestClass () {
        System.out.println(NUMBER);
    }
}

Creating three instances of TestClass would print the same random value three times, since only one value is generated and stored into the static constant.

However, when trying the following example instead:

public class TestClass {
    private final double NUMBER = Math.random();

    public TestClass () {
        System.out.println(NUMBER);
    }
}

Creating three instances of TestClass would now print three different random values, because each instance has its own randomly generated constant value.

I can't think of any situation where it would be really useful to have different constant values on different instances, but I hope this helps pointing out that there is a clear difference between static and non-static finals.

Not sure if this is really beneficial or why I prefer this style but what I do (in vanilla js) is:

document.querySelector('#selector').toggleAttribute('data-something');

This will add the attribute in all lowercase without a value or remove it if it already exists on the element.

https://developer.mozilla.org/en-US/docs/Web/API/Element/toggleAttribute

ng-show / ng-hide accepts only boolean values.

For complex expressions it is good to use controller and scope to avoid complications.

Below one will work (It is not very complex expression)

ng-show="User=='admin' || User=='teacher'"

Here element will be shown in UI when any of the two condition return true (OR operation).

Like this you can use any expressions.

Does this help?

This property returns all the attributes of an element into an array for you. Here is an example.

window.addEventListener('load', function() {_x000D_
  var result = document.getElementById('result');_x000D_
  var spanAttributes = document.getElementsByTagName('span')[0].attributes;_x000D_
  for (var i = 0; i != spanAttributes.length; i++) {_x000D_
    result.innerHTML += spanAttributes[i].value + ',';_x000D_
  }_x000D_
});

<span name="test" message="test2"></span>_x000D_
<div id="result"></div>

To get the attributes of many elements and organize them, I suggest making an array of all the elements that you want to loop through and then create a sub array for all the attributes of each element looped through.

This is an example of a script that will loop through the collected elements and print out two attributes. This script assumes that there will always be two attributes but you can easily fix this with further mapping.

window.addEventListener('load',function(){_x000D_
  /*_x000D_
  collect all the elements you want the attributes_x000D_
  for into the variable "elementsToTrack"_x000D_
  */ _x000D_
  var elementsToTrack = $('body span, body div');_x000D_
  //variable to store all attributes for each element_x000D_
  var attributes = [];_x000D_
  //gather all attributes of selected elements_x000D_
  for(var i = 0; i != elementsToTrack.length; i++){_x000D_
    var currentAttr = elementsToTrack[i].attributes;_x000D_
    attributes.push(currentAttr);_x000D_
  }_x000D_
  _x000D_
  //print out all the attrbute names and values_x000D_
  var result = document.getElementById('result');_x000D_
  for(var i = 0; i != attributes.length; i++){_x000D_
    result.innerHTML += attributes[i][0].name + ', ' + attributes[i][0].value + ' | ' + attributes[i][1].name + ', ' + attributes[i][1].value +'<br>';  _x000D_
  }_x000D_
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<span name="test" message="test2"></span>_x000D_
<span name="test" message="test2"></span>_x000D_
<span name="test" message="test2"></span>_x000D_
<span name="test" message="test2"></span>_x000D_
<span name="test" message="test2"></span>_x000D_
<span name="test" message="test2"></span>_x000D_
<span name="test" message="test2"></span>_x000D_
<div name="test" message="test2"></div>_x000D_
<div name="test" message="test2"></div>_x000D_
<div name="test" message="test2"></div>_x000D_
<div name="test" message="test2"></div>_x000D_
<div id="result"></div>

class someclass:
        x=1
        y=2
        z=3
        def __init__(self):
           self.current_idx = 0
           self.items = ["x","y","z"]
        def next(self):
            if self.current_idx < len(self.items):
                self.current_idx += 1
                k = self.items[self.current_idx-1]
                return (k,getattr(self,k))
            else:
                raise StopIteration
        def __iter__(self):
           return self

then just call it as an iterable

s=someclass()
for k,v in s:
    print k,"=",v

items[node.ind] = items[node.ind]._replace(v=node.v)

(Note: Don't be discouraged to use this solution because of the leading underscore in the function _replace. Specifically for namedtuple some functions have leading underscore which is not for indicating they are meant to be "private")

I think this sample explains the difference between the styles:

james@bodacious-wired:~$cat test.py 
#!/usr/bin/env python

class MyClass:
    element1 = "Hello"

    def __init__(self):
        self.element2 = "World"

obj = MyClass()

print dir(MyClass)
print "--"
print dir(obj)
print "--"
print obj.element1 
print obj.element2
print MyClass.element1 + " " + MyClass.element2
james@bodacious-wired:~$./test.py 
['__doc__', '__init__', '__module__', 'element1']
--
['__doc__', '__init__', '__module__', 'element1', 'element2']
--
Hello World
Hello
Traceback (most recent call last):
  File "./test.py", line 17, in <module>
    print MyClass.element2
AttributeError: class MyClass has no attribute 'element2'

element1 is bound to the class, element2 is bound to an instance of the class.

You could write a method that would do it directly via sql I suppose.

Would look something like this:

Variables:

$store_id = 1;
$product_id = 1234;
$attribute_code = 'manufacturer';

Query:

SELECT value FROM eav_attribute_option_value WHERE option_id IN (
    SELECT option_id FROM eav_attribute_option WHERE FIND_IN_SET(
        option_id, 
        (SELECT value FROM catalog_product_entity_varchar WHERE
            entity_id = '$product_id' AND 
            attribute_id = (SELECT attribute_id FROM eav_attribute WHERE
                attribute_code='$attribute_code')
        )
    ) > 0) AND
    store_id='$store_id';

You would have to get the value from the correct table based on the attribute's backend_type (field in eav_attribute) though so it takes at least 1 additional query.

If you want to set required to true

$(document).ready(function(){
$('#edit-submitted-first-name').prop('required',true);
});

if you want to set required to false

$(document).ready(function(){
$('#edit-submitted-first-name').prop('required',false);
});

just use jQuery bind method !jquery-selector!.bind('event', !fn!);

See here for more about events in jQuery

An abstract class is a type of class that can only be used as a base class for another class; such thus cannot be instantiated. To make a class abstract, the keyword abstract is used. Abstract classes may have one or more abstract methods that only have a header line (no method body). The method header line ends with a semicolon (;). Any class that is derived from the base class can define the method body in a way that is consistent with the header line using all the designated parameters and returning the correct data type (if the return type is not void). An abstract method acts as a place holder; all derived classes are expected to override and complete the method.

Example in Java

abstract public class Shape

{

double area;

public abstract double getArea();

}

Nice classes by Rich Tebb! I've been using DisplayAttribute and the code did not work for me. The only thing I've added is handling of DisplayAttribute. Brief search yielded that this attribute is new to MVC3 & .Net 4 and does almost the same thing plus more. Here's a modified version of the method:

 public static string GetPropertyDisplayString<T>(Expression<Func<T, object>> propertyExpression)
    {
        var memberInfo = GetPropertyInformation(propertyExpression.Body);
        if (memberInfo == null)
        {
            throw new ArgumentException(
                "No property reference expression was found.",
                "propertyExpression");
        }

        var displayAttribute = memberInfo.GetAttribute<DisplayAttribute>(false);

        if (displayAttribute != null)
        {
            return displayAttribute.Name;
        }
        else
        {
            var displayNameAttribute = memberInfo.GetAttribute<DisplayNameAttribute>(false);
            if (displayNameAttribute != null)
            {
                return displayNameAttribute.DisplayName;
            }
            else
            {
                return memberInfo.Name;
            }
        }
    }

This is more of an xpath question, but like this, assuming the context is the parent element:

<xsl:value-of select="name/@attribute1" />

Simple way to iterate over class fields and obtain values from object:

 Class<?> c = obj.getClass();
 Field[] fields = c.getDeclaredFields();
 Map<String, Object> temp = new HashMap<String, Object>();

 for( Field field : fields ){
      try {
           temp.put(field.getName().toString(), field.get(obj));
      } catch (IllegalArgumentException e1) {
      } catch (IllegalAccessException e1) {
      }
 }

$('#lol').get(0).style.display=''

or..

$('#lol').css('display', '')

As of today, you can read some values from HTML5 data attributes in CSS3 declarations. In CaioToOn's fiddle the CSS code can use the data properties for setting the content.

Unfortunately it is not working for the width and height (tested in Google Chrome 35, Mozilla Firefox 30 & Internet Explorer 11).

But there is a CSS3 attr() Polyfill from Fabrice Weinberg which provides support for data-width and data-height. You can find the GitHub repo to it here: cssattr.js.

To quote a quote:

The data- attributes are pulled in the first time the data property is accessed and then are no longer accessed or mutated (all data values are then stored internally in jQuery).

.data() - jQuery Documentiation

Note that this (Frankly odd) limitation is only withheld to the use of .data().

The solution? Use .attr instead.

Of course, several of you may feel uncomfortable with not using it's dedicated method. Consider the following scenario:

• The 'standard' is updated so that the data- portion of custom attributes is no longer required/is replaced

Common sense - Why would they change an already established attribute like that? Just imagine class begin renamed to group and id to identifier. The Internet would break.

And even then, Javascript itself has the ability to fix this - And of course, despite it's infamous incompatibility with HTML, REGEX (And a variety of similar methods) could rapidly rename your attributes to this new-mythical 'standard'.

TL;DR

alert($(targetField).attr("data-helptext"));

This meta tag is used by all responsive web pages, that is those that are designed to layout well across device types - phone, tablet, and desktop. The attributes do what they say. However, as MDN's Using the viewport meta tag to control layout on mobile browsers indicates,

On high dpi screens, pages with initial-scale=1 will effectively be zoomed by browsers.

I've found that the following ensures that the page displays with zero zoom by default.

<meta name="viewport" content="width=device-width, initial-scale=0.86, maximum-scale=3.0, minimum-scale=0.86">

They are right. IMG is a content element and CSS is about design. But, how about when you use some content elements or properties for design purposes? I have IMG across my web pages that must change if i change the style (the CSS).

Well this is a solution for defining IMG presentation (no really the image) in CSS style.
1: create a 1x1 transparent gif or png.
2: Assign propery "src" of IMG to that image.
3: Define final presentation with "background-image" in the CSS style.

It works like a charm :)

I tried very hard with System.ComponentModel.TypeDescriptor without success. That does not means it can't work but I would like to see code for that.

In counter part, I wanted to change some Attribute values. I did 2 functions which work fine for that purpose.

        // ************************************************************************
        public static void SetObjectPropertyDescription(this Type typeOfObject, string propertyName,  string description)
        {
            PropertyDescriptor pd = TypeDescriptor.GetProperties(typeOfObject)[propertyName];
            var att = pd.Attributes[typeof(DescriptionAttribute)] as DescriptionAttribute;
            if (att != null)
            {
                var fieldDescription = att.GetType().GetField("description", BindingFlags.NonPublic | BindingFlags.Instance);
                if (fieldDescription != null)
                {
                    fieldDescription.SetValue(att, description);
                }
            }
        }

        // ************************************************************************
        public static void SetPropertyAttributReadOnly(this Type typeOfObject, string propertyName, bool isReadOnly)
        {
            PropertyDescriptor pd = TypeDescriptor.GetProperties(typeOfObject)[propertyName];
            var att = pd.Attributes[typeof(ReadOnlyAttribute)] as ReadOnlyAttribute;
            if (att != null)
            {
                var fieldDescription = att.GetType().GetField("isReadOnly", BindingFlags.NonPublic | BindingFlags.Instance);
                if (fieldDescription != null)
                {
                    fieldDescription.SetValue(att, isReadOnly);
                }
            }
        }

To select elements having a certain attribute, see the answers above.

To determine if a given jQuery element has a specific attribute I'm using a small plugin that returns true if the first element in ajQuery collection has this attribute:

/** hasAttr
 ** helper plugin returning boolean if the first element of the collection has a certain attribute
 **/
$.fn.hasAttr = function(attr) {
   return 0 < this.length
       && 'undefined' !== typeof attr
       && undefined !== attr
       && this[0].hasAttribute(attr)
}

You could use my ancient Bunch recipe, but if you don't want to make a "bunch class", a very simple one already exists in Python -- all functions can have arbitrary attributes (including lambda functions). So, the following works:

obj = someobject
obj.a = lambda: None
setattr(obj.a, 'somefield', 'somevalue')

Whether the loss of clarity compared to the venerable Bunch recipe is OK, is a style decision I will of course leave up to you.

In jquery ui modal dialogs you need to use this construct:

$( "#my_dialog" ).dialog( "option", "title", "my new title" );

It doesn't work in generality. Not all valid dict keys make addressable attributes ("the key"). So, you'll need to be careful.

Python objects are all basically dictionaries. So I doubt there is much performance or other penalty.

This worked for me and I think is more HTML5 compliant. You should change your html to use 'data-' prefix

<div data-example-directive data-number="99"></div>

And within the directive read the variable's value:

scope: {
        number : "=",
        ....
    },

I would do it with cssSelector:

// for all checked checkboxes
driver.findElements(By.cssSelector("input:checked[type='checkbox']"));
// for all notchecked checkboxes
driver.findElements(By.cssSelector("input:not(:checked)[type='checkbox']"));

Maybe that also helps ;-)

I'm disabling select2 with:

$('select').select2("enable",false);

And enabling it with

$('select').select2("enable");

You need to iterate through all the enum values in Animal and return the value that matches the description you need.

You could try:

$j('div.contextualError.ckgcellphone').css('display')

The ideas on this page were helpful, yet as ever my scenario was different. So, in modal bootstrap / express node js / aws beanstalk, this worked for me:

var modal = $(this);
modal.find(".modal-body select#cJourney").val(vcJourney).attr("selected","selected");

Where my select ID = "cJourney" and the drop down value was stored in variable: vcJourney

If you want to do this, you need to save it in a variable first. So you don't need to use id to query this element every time.

var el = $("#page_navigation1");

$("#add").click(function(){
  el.attr("id","page_navigation1");
});     

$("#remove").click(function(){
  el.removeAttr("id");
});     

In Python 3.x, simply use get(attr_name) on your tag object that you get using find_all:

xmlData = None

with open('conf//test1.xml', 'r') as xmlFile:
    xmlData = xmlFile.read()

xmlDecoded = xmlData

xmlSoup = BeautifulSoup(xmlData, 'html.parser')

repElemList = xmlSoup.find_all('repeatingelement')

for repElem in repElemList:
    print("Processing repElem...")
    repElemID = repElem.get('id')
    repElemName = repElem.get('name')

    print("Attribute id = %s" % repElemID)
    print("Attribute name = %s" % repElemName)

against XML file conf//test1.xml that looks like:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<root>
    <singleElement>
        <subElementX>XYZ</subElementX>
    </singleElement>
    <repeatingElement id="11" name="Joe"/>
    <repeatingElement id="12" name="Mary"/>
</root>

prints:

Processing repElem...
Attribute id = 11
Attribute name = Joe
Processing repElem...
Attribute id = 12
Attribute name = Mary

Try hasattr():

if hasattr(a, 'property'):
    a.property

EDIT: See zweiterlinde's answer below, who offers good advice about asking forgiveness! A very pythonic approach!

The general practice in python is that, if the property is likely to be there most of the time, simply call it and either let the exception propagate, or trap it with a try/except block. This will likely be faster than hasattr. If the property is likely to not be there most of the time, or you're not sure, using hasattr will probably be faster than repeatedly falling into an exception block.

To set the disabled to false using the name property of the input:

document.myForm.myInputName.disabled = false;

A debugging script (jquery solution based on the answer above by hashchange)

function getAttributes ( $node ) {
      $.each( $node[0].attributes, function ( index, attribute ) {
      console.log(attribute.name+':'+attribute.value);
   } );
}

getAttributes($(this));  // find out what attributes are available

NSMutableArray *array = [[NSMutableArray alloc] initWithObjects:@"First",@"Second", nil];
NSMutableArray *copiedArray = [array mutableCopy];
NSMutableArray *retainedArray = [array retain];

[retainedArray addObject:@"Retained Third"];
[copiedArray addObject:@"Copied Third"];

NSLog(@"array = %@",array);
NSLog(@"Retained Array = %@",retainedArray);
NSLog(@"Copied Array = %@",copiedArray);

array = (
    First,
    Second,
    "Retained Third"
)
Retained Array = (
    First,
    Second,
    "Retained Third"
)
Copied Array = (
    First,
    Second,
    "Copied Third"
)

Also works fine within a class:

def update_property(self, property, value):
   setattr(self, property, value)

Function attributes can be used to write light-weight closures that wrap code and associated data together:

#!/usr/bin/env python

SW_DELTA = 0
SW_MARK  = 1
SW_BASE  = 2

def stopwatch():
   import time

   def _sw( action = SW_DELTA ):

      if action == SW_DELTA:
         return time.time() - _sw._time

      elif action == SW_MARK:
         _sw._time = time.time()
         return _sw._time

      elif action == SW_BASE:
         return _sw._time

      else:
         raise NotImplementedError

   _sw._time = time.time() # time of creation

   return _sw

# test code
sw=stopwatch()
sw2=stopwatch()
import os
os.system("sleep 1")
print sw() # defaults to "SW_DELTA"
sw( SW_MARK )
os.system("sleep 2")
print sw()
print sw2()

1.00934004784

2.00644397736

3.01593494415

I know this is quite old, but when a lost stranger finds this question looking for an answer (like I did) then this is the best way to do it, instead of using removeAttr():

$element.prop("onclick", null);

Citing jQuerys official doku:

"Removing an inline onclick event handler using .removeAttr() doesn't achieve the desired effect in Internet Explorer 6, 7, or 8. To avoid potential problems, use .prop() instead"

Just to add that there should be no space between the selector and the opening bracket.

td[someclass] 

will work. But

td [someclass] 

will not.

This is very good discussion. I had one of those moments when I wished or lets say hoped (successfully that I might add) to reinvent the wheel be it a square one. Any ways above is good discussion, so any one coming here looking for what is the difference between Element property and attribute. here is my penny worth and I did have to find it out hard way. I would keep it simple so no extraordinary tech jargon.

suppose we have a variable calls 'A'. what we are used to is as following.

Below will throw an error because simply it put its is kind of object that can only have one property and that is singular left hand side = singular right hand side object. Every thing else is ignored and tossed out in bin.

let A = 'f';
A.b =2;
console.log(A.b);

who has decided that it has to be singular = singular. People who make JavaScript and html standards and thats how engines work.

Lets change the example.

let A = {};
A.b =2;
console.log(A.b);

This time it works ..... because we have explicitly told it so and who decided we can tell it in this case but not in previous case. Again people who make JavaScript and html standards.

I hope we are on this lets complicate it further

let A = {};
A.attribute ={};
A.attribute.b=5;
console.log(A.attribute.b); // will work

console.log(A.b); // will not work

What we have done is tree of sorts level 1 then sub levels of non-singular object. Unless you know what is where and and call it so it will work else no.

This is what goes on with HTMLDOM when its parsed and painted a DOm tree is created for each and every HTML ELEMENT. Each has level of properties per say. Some are predefined and some are not. This is where ID and VALUE bits come on. Behind the scene they are mapped on 1:1 between level 1 property and sun level property aka attributes. Thus changing one changes the other. This is were object getter ans setter scheme of things plays role.

let A = {
attribute :{
id:'',
value:''
},
getAttributes: function (n) {
    return this.attribute[n];
  },
setAttributes: function (n,nn){
this.attribute[n] = nn;
if(this[n]) this[n] = nn;
},
id:'',
value:''
};



A.id = 5;
console.log(A.id);
console.log(A.getAttributes('id'));

A.setAttributes('id',7)
console.log(A.id);
console.log(A.getAttributes('id'));

A.setAttributes('ids',7)
console.log(A.ids);
console.log(A.getAttributes('ids'));

A.idsss=7;
console.log(A.idsss);
console.log(A.getAttributes('idsss'));

This is the point as shown above ELEMENTS has another set of so called property list attributes and it has its own main properties. there some predefined properties between the two and are mapped as 1:1 e.g. ID is common to every one but value is not nor is src. when the parser reaches that point it simply pulls up dictionary as to what to when such and such are present.

All elements have properties and attributes and some of the items between them are common. What is common in one is not common in another.

In old days of HTML3 and what not we worked with html first then on to JS. Now days its other way around and so has using inline onlclick become such an abomination. Things have moved forward in HTML5 where there are many property lists accessible as collection e.g. class, style. In old days color was a property now that is moved to css for handling is no longer valid attribute.

Element.attributes is sub property list with in Element property.

Unless you could change the getter and setter of Element property which is almost high unlikely as it would break hell on all functionality is usually not writable off the bat just because we defined something as A.item does not necessarily mean Js engine will also run another line of function to add it into Element.attributes.item.

I hope this gives some headway clarification as to what is what. Just for the sake of this I tried Element.prototype.setAttribute with custom function it just broke loose whole thing all together, as it overrode native bunch of functions that set attribute function was playing behind the scene.

Depending on what browsers you're targeting, you could go for the object-fit property to solve this:

object-fit: cover;

or maybe fill is what you're looking for. Still under consideration for IE.

I thought this might be useful to someone:

in chrome version 32, a 2-pixels border automatically appears around iframes without the seamless attribute. It can be easily removed by adding this CSS rule:

iframe:not([seamless]) { border:none; }

Chrome uses the same selector with these default user-agent styles:

iframe:not([seamless]) {
  border: 2px inset;
  border-image-source: initial;
  border-image-slice: initial;
  border-image-width: initial;
  border-image-outset: initial;
  border-image-repeat: initial;
}

Removing a Single Attribute on a Single File

See Bavarious's answer.

To Remove All Extended Attributes On a Single File

Use xattr with the -c flag to "clear" the attributes:

xattr -c yourfile.txt

To Remove All Extended Attributes On Many Files

To recursively remove extended attributes on all files in a directory, combine the -c "clear" flag with the -r recursive flag:

xattr -rc /path/to/directory

A Tip for Mac OS X Users

Have a long path with spaces or special characters?

Open Terminal.app and start typing xattr -rc, include a trailing space, and then then drag the file or folder to the Terminal.app window and it will automatically add the full path with proper escaping.

<form action="demo_form.asp">
<label for="male">Male</label>
<input type="radio" name="sex" id="male" value="male"><br>
<label for="female">Female</label>
<input type="radio" name="sex" id="female" value="female"><br>
<input type="submit" value="Submit">
</form>

You can just iterate over the data attributes like any other object to get keys and values, here's how to do it with $.each:

    $.each($('#myEl').data(), function(key, value) {
        console.log(key);
        console.log(value);
    });

There's a great example in the AngularJS docs.

It's very well commented and should get you pointed in the right direction.

A simple example, maybe more so what you're looking for is below:

jsfiddle

HTML

<div ng-app="myDirective" ng-controller="x">
    <input type="text" ng-model="test" my-directive>
</div>

JavaScript

angular.module('myDirective', [])
    .directive('myDirective', function () {
    return {
        restrict: 'A',
        link: function (scope, element, attrs) {
            scope.$watch(attrs.ngModel, function (v) {
                console.log('value changed, new value is: ' + v);
            });
        }
    };
});

function x($scope) {
    $scope.test = 'value here';
}

Edit: Same thing, doesn't require ngModel jsfiddle:

JavaScript

angular.module('myDirective', [])
    .directive('myDirective', function () {
    return {
        restrict: 'A',
        scope: {
            myDirective: '='
        },
        link: function (scope, element, attrs) {
            // set the initial value of the textbox
            element.val(scope.myDirective);
            element.data('old-value', scope.myDirective);

            // detect outside changes and update our input
            scope.$watch('myDirective', function (val) {
                element.val(scope.myDirective);
            });

            // on blur, update the value in scope
            element.bind('propertychange keyup paste', function (blurEvent) {
                if (element.data('old-value') != element.val()) {
                    console.log('value changed, new value is: ' + element.val());
                    scope.$apply(function () {
                        scope.myDirective = element.val();
                        element.data('old-value', element.val());
                    });
                }
            });
        }
    };
});

function x($scope) {
    $scope.test = 'value here';
}

Sometimes df.name doesn't work.

you might get an error message:

'DataFrame' object has no attribute 'name'

try the below function:

def get_df_name(df):
    name =[x for x in globals() if globals()[x] is df][0]
    return name

AssemblyVersion

Where other assemblies that reference your assembly will look. If this number changes, other assemblies have to update their references to your assembly! Only update this version, if it breaks backward compatibility. The AssemblyVersion is required.

I use the format: major.minor. This would result in:

[assembly: AssemblyVersion("1.0")]

If you're following SemVer strictly then this means you only update when the major changes, so 1.0, 2.0, 3.0, etc.

AssemblyFileVersion

Used for deployment. You can increase this number for every deployment. It is used by setup programs. Use it to mark assemblies that have the same AssemblyVersion, but are generated from different builds.

In Windows, it can be viewed in the file properties.

The AssemblyFileVersion is optional. If not given, the AssemblyVersion is used.

I use the format: major.minor.patch.build, where I follow SemVer for the first three parts and use the buildnumber of the buildserver for the last part (0 for local build). This would result in:

[assembly: AssemblyFileVersion("1.3.2.254")]

Be aware that System.Version names these parts as major.minor.build.revision!

AssemblyInformationalVersion

The Product version of the assembly. This is the version you would use when talking to customers or for display on your website. This version can be a string, like '1.0 Release Candidate'.

The AssemblyInformationalVersion is optional. If not given, the AssemblyFileVersion is used.

I use the format: major.minor[.patch] [revision as string]. This would result in:

[assembly: AssemblyInformationalVersion("1.0 RC1")]

Getting only the instance attributes is easy.
But getting also the class attributes without the functions is a bit more tricky.

Instance attributes only

If you only have to list instance attributes just use
for attribute, value in my_instance.__dict__.items()

>>> from __future__ import (absolute_import, division, print_function)
>>> class MyClass(object):
...   def __init__(self):
...     self.a = 2
...     self.b = 3
...   def print_instance_attributes(self):
...     for attribute, value in self.__dict__.items():
...       print(attribute, '=', value)
...
>>> my_instance = MyClass()
>>> my_instance.print_instance_attributes()
a = 2
b = 3
>>> for attribute, value in my_instance.__dict__.items():
...   print(attribute, '=', value)
...
a = 2
b = 3

Instance and class attributes

To get also the class attributes without the functions, the trick is to use callable().

But static methods are not always callable!

Therefore, instead of using callable(value) use
callable(getattr(MyClass, attribute))

Example

from __future__ import (absolute_import, division, print_function)

class MyClass(object):
   a = "12"
   b = "34"               # class attributes

   def __init__(self, c, d):
     self.c = c
     self.d = d           # instance attributes

   @staticmethod
   def mystatic():        # static method
       return MyClass.b

   def myfunc(self):      # non-static method
     return self.a

   def print_instance_attributes(self):
     print('[instance attributes]')
     for attribute, value in self.__dict__.items():
        print(attribute, '=', value)

   def print_class_attributes(self):
     print('[class attributes]')
     for attribute in self.__dict__.keys():
       if attribute[:2] != '__':
         value = getattr(self, attribute)
         if not callable(value):
           print(attribute, '=', value)

v = MyClass(4,2)
v.print_class_attributes()
v.print_instance_attributes()

Note: print_class_attributes() should be @staticmethod
  but not in this stupid and simple example.

Result for python2

$ python2 ./print_attributes.py
[class attributes]
a = 12
b = 34
[instance attributes]
c = 4
d = 2

Same result for python3

$ python3 ./print_attributes.py
[class attributes]
b = 34
a = 12
[instance attributes]
c = 4
d = 2

In awk, FNR refers to the record number (typically the line number) in the current file and NR refers to the total record number. The operator == is a comparison operator, which returns true when the two surrounding operands are equal.

This means that the condition NR==FNR is only true for the first file, as FNR resets back to 1 for the first line of each file but NR keeps on increasing.

This pattern is typically used to perform actions on only the first file. The next inside the block means any further commands are skipped, so they are only run on files other than the first.

The condition FNR==NR compares the same two operands as NR==FNR, so it behaves in the same way.

My issue was that I was creating objects that I wanted to be stored in a NSMutableDictionary but I never initialized the dictionary. Therefore the objects were getting deleted by garbage collection and breaking later. Check that you have at least one strong reference to the objects youre interacting with.

insertion sort:

1.In the insertion sort swapping is not required.

2.the time complexity of insertion sort is O(n)for best case and O(n^2) worst case.

3.less complex as compared to bubble sort.

4.example: insert books in library, arrange cards.

bubble sort: 1.Swapping required in bubble sort.

2.the time complexity of bubble sort is O(n)for best case and O(n^2) worst case.

3.more complex as compared to insertion sort.

The answer to this question depends on which platform you are using.
But irrespective of platform, you can reliably assume the following types:

 [8-bit] signed char: -127 to 127
 [8-bit] unsigned char: 0 to 255
 [16-bit]signed short: -32767 to 32767
 [16-bit]unsigned short: 0 to 65535
 [32-bit]signed long: -2147483647 to 2147483647
 [32-bit]unsigned long: 0 to 4294967295
 [64-bit]signed long long: -9223372036854775807 to 9223372036854775807
 [64-bit]unsigned long long: 0 to 18446744073709551615

>>> "{:.1f}".format(45.34531)
'45.3'

Or use the builtin round:

>>> round(45.34531, 1)
45.299999999999997

It appears that SSRS has an issue(at leastin version 2008) - I'm studying this website that explains it

Where it says if you have two columns(from 2 diff. tables) with the same name, then it'll cause that problem.

From source:

SELECT a.Field1, a.Field2, a.Field3, b.Field1, b.field99 FROM TableA a JOIN TableB b on a.Field1 = b.Field1

SQL handled it just fine, since I had prefixed each with an alias (table) name. But SSRS uses only the column name as the key, not table + column, so it was choking.

The fix was easy, either rename the second column, i.e. b.Field1 AS Field01 or just omit the field all together, which is what I did.

You do it like this:

df = read.table("file.txt", nrows=1, header=TRUE, sep="\t", stringsAsFactors=FALSE)
colClasses = as.list(apply(df, 2, class))
needCols = c("Year", "Jan", "Feb", "Mar", "Apr", "May", "Jun")
colClasses[!names(colClasses) %in% needCols] = list(NULL)
df = read.table("file.txt", header=TRUE, colClasses=colClasses, sep="\t", stringsAsFactors=FALSE)

Just do select date(timestamp_column) and you would get the only the date part. Sometimes doing select timestamp_column::date may return date 00:00:00 where it doesn't remove the 00:00:00 part. But I have seen date(timestamp_column) to work perfectly in all the cases. Hope this helps.

There is another simple sql like option. With Spark 1.6 below also should work.

df.filter("state = 'TX'")

This is a new way of specifying sql like filters. For a full list of supported operators, check out this class.

To add to Kevin's answer, I find that in practice nearly all of your non-trivial Spring MVC applications will require an application context (as opposed to only the spring MVC dispatcher servlet context). It is in the application context that you should configure all non-web related concerns such as:

• Security
• Persistence
• Scheduled Tasks
• Others?

To make this a bit more concrete, here's an example of the Spring configuration I've used when setting up a modern (Spring version 4.1.2) Spring MVC application. Personally, I prefer to still use a WEB-INF/web.xml file but that's really the only xml configuration in sight.

WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1">
  
  <filter>
    <filter-name>openEntityManagerInViewFilter</filter-name>
    <filter-class>org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter</filter-class>
  </filter>
  
  <filter>
    <filter-name>springSecurityFilterChain</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy
    </filter-class>
  </filter>
 
  <filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <filter-mapping>
    <filter-name>openEntityManagerInViewFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  
  <servlet>
    <servlet-name>springMvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
    <init-param>
      <param-name>contextClass</param-name>
      <param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
    </init-param>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>com.company.config.WebConfig</param-value>
    </init-param>
  </servlet>
  
  <context-param>
    <param-name>contextClass</param-name>
    <param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
  </context-param>

  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>com.company.config.AppConfig</param-value>
  </context-param>

  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <servlet-mapping>
    <servlet-name>springMvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  
  <session-config>
    <session-timeout>30</session-timeout>
  </session-config>

  <jsp-config>
    <jsp-property-group>
      <url-pattern>*.jsp</url-pattern>
      <scripting-invalid>true</scripting-invalid>
    </jsp-property-group>
  </jsp-config>
  
</web-app>

WebConfig.java

@Configuration
@EnableWebMvc
@ComponentScan(basePackages = "com.company.controller")
public class WebConfig {

  @Bean
  public InternalResourceViewResolver getInternalResourceViewResolver() {
    InternalResourceViewResolver resolver = new InternalResourceViewResolver();
    resolver.setPrefix("/WEB-INF/views/");
    resolver.setSuffix(".jsp");
    return resolver;
  }
}

AppConfig.java

@Configuration
@ComponentScan(basePackages = "com.company")
@Import(value = {SecurityConfig.class, PersistenceConfig.class, ScheduleConfig.class})
public class AppConfig {
  // application domain @Beans here...
}

Security.java

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
  @Autowired
  private LdapUserDetailsMapper ldapUserDetailsMapper;

  @Override
    protected void configure(HttpSecurity http) throws Exception {
    http.authorizeRequests()
      .antMatchers("/").permitAll()
      .antMatchers("/**/js/**").permitAll()
      .antMatchers("/**/images/**").permitAll()
      .antMatchers("/**").access("hasRole('ROLE_ADMIN')")
      .and().formLogin();

    http.logout().logoutRequestMatcher(new AntPathRequestMatcher("/logout"));
    }

  @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
      auth.ldapAuthentication()
      .userSearchBase("OU=App Users")
      .userSearchFilter("sAMAccountName={0}")
      .groupSearchBase("OU=Development")
      .groupSearchFilter("member={0}")
      .userDetailsContextMapper(ldapUserDetailsMapper)
      .contextSource(getLdapContextSource());
    }

  private LdapContextSource getLdapContextSource() {
    LdapContextSource cs = new LdapContextSource();
    cs.setUrl("ldaps://ldapServer:636");
    cs.setBase("DC=COMPANY,DC=COM");
    cs.setUserDn("CN=administrator,CN=Users,DC=COMPANY,DC=COM");
    cs.setPassword("password");
    cs.afterPropertiesSet();
    return cs;
  }
}

PersistenceConfig.java

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(transactionManagerRef = "getTransactionManager", entityManagerFactoryRef = "getEntityManagerFactory", basePackages = "com.company")
public class PersistenceConfig {

  @Bean
  public LocalContainerEntityManagerFactoryBean getEntityManagerFactory(DataSource dataSource) {
    LocalContainerEntityManagerFactoryBean lef = new LocalContainerEntityManagerFactoryBean();
    lef.setDataSource(dataSource);
    lef.setJpaVendorAdapter(getHibernateJpaVendorAdapter());
    lef.setPackagesToScan("com.company");
    return lef;
  }

  private HibernateJpaVendorAdapter getHibernateJpaVendorAdapter() {
    HibernateJpaVendorAdapter hibernateJpaVendorAdapter = new HibernateJpaVendorAdapter();
    hibernateJpaVendorAdapter.setDatabase(Database.ORACLE);
    hibernateJpaVendorAdapter.setDatabasePlatform("org.hibernate.dialect.Oracle10gDialect");
    hibernateJpaVendorAdapter.setShowSql(false);
    hibernateJpaVendorAdapter.setGenerateDdl(false);
    return hibernateJpaVendorAdapter;
  }

  @Bean
  public JndiObjectFactoryBean getDataSource() {
    JndiObjectFactoryBean jndiFactoryBean = new JndiObjectFactoryBean();
    jndiFactoryBean.setJndiName("java:comp/env/jdbc/AppDS");
    return jndiFactoryBean;
  }

  @Bean
  public JpaTransactionManager getTransactionManager(DataSource dataSource) {
    JpaTransactionManager jpaTransactionManager = new JpaTransactionManager();
    jpaTransactionManager.setEntityManagerFactory(getEntityManagerFactory(dataSource).getObject());
    jpaTransactionManager.setDataSource(dataSource);
    return jpaTransactionManager;
  }
}

ScheduleConfig.java

@Configuration
@EnableScheduling
public class ScheduleConfig {
  @Autowired
  private EmployeeSynchronizer employeeSynchronizer;

  // cron pattern: sec, min, hr, day-of-month, month, day-of-week, year (optional)
  @Scheduled(cron="0 0 0 * * *")
  public void employeeSync() {
    employeeSynchronizer.syncEmployees();
  }
}

As you can see, the web configuration is only a small part of the overall spring web application configuration. Most web applications I've worked with have many concerns that lie outside of the dispatcher servlet configuration that require a full-blown application context bootstrapped via the org.springframework.web.context.ContextLoaderListener in the web.xml.

I get the same error in WP when I use php ver 7.1.6 - just take your php version back to 7.0.20 and the error will disappear.

Originally from a Codepen pen by Chris Coyier of Codepen/CSS-Tricks

.auto            { cursor: auto; }
.default         { cursor: default; }
.none            { cursor: none; }
.context-menu    { cursor: context-menu; }
.help            { cursor: help; }
.pointer         { cursor: pointer; }
.progress        { cursor: progress; }
.wait            { cursor: wait; }
.cell            { cursor: cell; }
.crosshair       { cursor: crosshair; }
.text            { cursor: text; }
.vertical-text   { cursor: vertical-text; }
.alias           { cursor: alias; }
.copy            { cursor: copy; }
.move            { cursor: move; }
.no-drop         { cursor: no-drop; }
.not-allowed     { cursor: not-allowed; }
.all-scroll      { cursor: all-scroll; }
.col-resize      { cursor: col-resize; }
.row-resize      { cursor: row-resize; }
.n-resize        { cursor: n-resize; }
.e-resize        { cursor: e-resize; }
.s-resize        { cursor: s-resize; }
.w-resize        { cursor: w-resize; }
.ns-resize       { cursor: ns-resize; }
.ew-resize       { cursor: ew-resize; }
.ne-resize       { cursor: ne-resize; }
.nw-resize       { cursor: nw-resize; }
.se-resize       { cursor: se-resize; }
.sw-resize       { cursor: sw-resize; }
.nesw-resize     { cursor: nesw-resize; }
.nwse-resize     { cursor: nwse-resize; }

body {
  text-align: center;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";

}
.cursors {
  display: flex;
  flex-wrap: wrap;
}
.cursors > div {
  flex: 150px;
  padding: 10px 2px;
  white-space: nowrap;
  border: 1px solid #eee;
  border-radius: 5px;
  margin: 0 5px 5px 0;
}
.cursors > div:hover {
  background: #eee;
}

HTML CSSResult
EDIT ON
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}

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}

.gif {
  cursor: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/9632/tina.gif"), auto;
}

.cursors {
  display: flex;
  justify-content: flex-start;
  align-items: stretch;
  height: 100vh;
}

.cursors > div {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-grow: 1;
  box-sizing: border-box;
  padding: 10px 2px;
  text-align: center;
}

<h1>The Cursors of CSS</h1>

<div class="cursors">
    <div class="auto">auto</div>
    <div class="default">default</div>
    <div class="none">none</div>
    <div class="context-menu">context-menu</div>
    <div class="help">help</div>
    <div class="pointer">pointer</div>
    <div class="progress">progress</div>
    <div class="wait">wait</div>
    <div class="cell">cell</div>
    <div class="crosshair">crosshair</div>
    <div class="text">text</div>
    <div class="vertical-text">vertical-text</div>
    <div class="alias">alias</div>
    <div class="copy">copy</div>
    <div class="move">move</div>
    <div class="no-drop">no-drop</div>
    <div class="not-allowed">not-allowed</div>
    <div class="all-scroll">all-scroll</div>
    <div class="col-resize">col-resize</div>
    <div class="row-resize">row-resize</div>
    <div class="n-resize">n-resize</div>
    <div class="s-resize">s-resize</div>
    <div class="e-resize">e-resize</div>
    <div class="w-resize">w-resize</div>
    <div class="ns-resize">ns-resize</div>
    <div class="ew-resize">ew-resize</div>
    <div class="ne-resize">ne-resize</div>
    <div class="nw-resize">nw-resize</div>
    <div class="se-resize">se-resize</div>
    <div class="sw-resize">sw-resize</div>
    <div class="nesw-resize">nesw-resize</div>
    <div class="nwse-resize">nwse-resize</div>
</div>
<br><br><br><br><br><br><br><br><br>
<h1>Custom Image</h1>
<div class="cursors">
  <div class="svg"><p>SVG</p></div>
  <div class="svg-base64">Base 64 SVG</div>
  <div class="png-base64">Base 64 PNG</div>
  <div class="png">PNG</div>
  <div class="gif">GIF</div>
</div>

You are sending a POST AJAX request so use $albumname = $_POST['album']; on your server to fetch the value. Also I would recommend you writing the request like this in order to ensure proper encoding:

$.ajax({  
    type: 'POST',  
    url: 'test.php', 
    data: { album: this.title },
    success: function(response) {
        content.html(response);
    }
});

or in its shorter form:

$.post('test.php', { album: this.title }, function() {
    content.html(response);
});

and if you wanted to use a GET request:

$.ajax({  
    type: 'GET',
    url: 'test.php', 
    data: { album: this.title },
    success: function(response) {
        content.html(response);
    }
});

or in its shorter form:

$.get('test.php', { album: this.title }, function() {
    content.html(response);
});

and now on your server you wil be able to use $albumname = $_GET['album'];. Be careful though with AJAX GET requests as they might be cached by some browsers. To avoid caching them you could set the cache: false setting.

Like this:

var $aWithId = $('.parent a[id]');

Following OP's comment, test it like this:

if($aWithId.length) //or without using variable: if ($('.parent a[id]').length)

Will return all anchor tags inside elements with class parent which have an attribute ID specified

Go to /etc/php5/fpm/pool.d/www.conf and if you are using sockets or this line is uncommented

listen = /var/run/php5-fpm.sock

Set couple of other values too:-

listen.owner = www-data
listen.group = www-data
listen.mode = 0660

Don't forget to restart php-fpm and nginx. Make sure you are using the same nginx owner and group name.

I don't have enough reputation to comment, so I'll leave my version of Salil Dwahan's version here. Works for Swift 5, XCode 11.3.

First place your button on IB, select type "Custom" and create an outlet and an action with the Assistant Layout (Ctrl + Drag). Include the following code and it should end like this:

class YourViewController: UIViewController {
    @IBOutlet weak var checkbox: UIButton!
    @IBAction func checkboxTapped(_ sender: UIButton) {
        checkbox.isSelected = !checkbox.isSelected
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        checkbox.setImage(UIImage.init(named: "checkMark"), for: .selected)
    }
}

Don't forget to add the image to Assets and change the name to match!

checkbox.isSelected is the way to check

What about sending a SIGSTOP to itself?

This should pause the process until SIGCONT is received. Which is in your case: never.

kill -STOP "$$";
# grace time for signal delivery
sleep 60;

Just copy and paste this code and you can experiment with two modals. Second modal is open after closing the first one:

<!-- Button to Open the Modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#myModal">
    Open modal
</button>

<!-- The Modal -->
<div class="modal" id="myModal">
    <div class="modal-dialog">
        <div class="modal-content">

            <!-- Modal Header -->
            <div class="modal-header">
                <h4 class="modal-title">Modal Heading</h4>
                <button type="button" class="close" data-dismiss="modal">&times;</button>
            </div>

            <!-- Modal body -->
            <div class="modal-body">
                Modal body..
            </div>

            <!-- Modal footer -->
            <div class="modal-footer">
                <button type="button" class="btn btn-danger" data-dismiss="modal">Close</button>
            </div>

        </div>
    </div>
</div>



<!-- The Modal 2 -->
<div class="modal" id="myModal2">
    <div class="modal-dialog">
        <div class="modal-content">

            <!-- Modal Header -->
            <div class="modal-header">
                <h4 class="modal-title">Second modal</h4>
                <button type="button" class="close" data-dismiss="modal">&times;</button>
            </div>

            <!-- Modal body -->
            <div class="modal-body">
                Modal body..
            </div>

            <!-- Modal footer -->
            <div class="modal-footer">
                <button type="button" class="btn btn-danger" data-dismiss="modal">Close</button>
            </div>

        </div>
    </div>
</div>




<script>
    $('#myModal').on('hidden.bs.modal', function () {
        $('#myModal2').modal('show')
    })
</script>

Cheers!

SELECT convert(varchar(10), '23/07/2009', 111)

I'm having the same problem, but it gets solved with installation of python-dev.

Before installing PIL, run following command:

sudo apt-get install python-dev

Then install PIL:

pip install PIL

numpy has a great tool for this task ("numpy.reshape") link to reshape documentation

a = [[ 0  1]
 [ 2  3]
 [ 4  5]
 [ 6  7]
 [ 8  9]
 [10 11]
 [12 13]
 [14 15]
 [16 17]]

`numpy.reshape(a,(3,3))`

you can also use the "-1" trick

`a = a.reshape(-1,3)`

the "-1" is a wild card that will let the numpy algorithm decide on the number to input when the second dimension is 3

so yes.. this would also work: a = a.reshape(3,-1)

and this: a = a.reshape(-1,2) would do nothing

and this: a = a.reshape(-1,9) would change the shape to (2,9)

Swift 4

This method will download an image from a website asynchronously and cache it:

    func getImageFromWeb(_ urlString: String, closure: @escaping (UIImage?) -> ()) {
        guard let url = URL(string: urlString) else {
return closure(nil)
        }
        let task = URLSession(configuration: .default).dataTask(with: url) { (data, response, error) in
            guard error == nil else {
                print("error: \(String(describing: error))")
                return closure(nil)
            }
            guard response != nil else {
                print("no response")
                return closure(nil)
            }
            guard data != nil else {
                print("no data")
                return closure(nil)
            }
            DispatchQueue.main.async {
                closure(UIImage(data: data!))
            }
        }; task.resume()
    }

In use:

    getImageFromWeb("http://www.apple.com/euro/ios/ios8/a/generic/images/og.png") { (image) in
        if let image = image {
            let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 200, height: 200))
            imageView.image = image
            self.view.addSubview(imageView)
        } // if you use an Else statement, it will be in background
    }

Use a for loop instead of .forEach()

var myObj = [{"a": "1","b": null},{"a": "2","b": 5}]
var result = false

for(var call of myObj) {
    console.log(call)
    
    var a = call['a'], b = call['b']
     
    if(a == null || b == null) {
        result = false
        break
    }
}

You can use concatenation operator and instead of declaring two variables only use one variable

String finalString =  cursor.getString(numcol) + cursor.getString(cursor.getColumnIndexOrThrow(db.KEY_DESTINATIE));

Apparently some POST requests looks like a "GET" to the server (like Heroku...)

So I use this strategy and it works for me:

@RequestMapping(value = "/salvar", method = { RequestMethod.GET, RequestMethod.POST })

If you only want to replace some characters you could use this:

import re

print re.sub(r'([\.\\\+\*\?\[\^\]\$\(\)\{\}\!\<\>\|\:\-])', r'\\\1', "example string.")

Another option is using a map as a set. You use just the keys and having the value be something like a boolean that's always true. Then you can easily check if the map contains the key or not. This is useful if you need the behavior of a set, where if you add a value multiple times it's only in the set once.

Here's a simple example where I add random numbers as keys to a map. If the same number is generated more than once it doesn't matter, it will only appear in the final map once. Then I use a simple if check to see if a key is in the map or not.

package main

import (
    "fmt"
    "math/rand"
)

func main() {
    var MAX int = 10

    m := make(map[int]bool)

    for i := 0; i <= MAX; i++ {
        m[rand.Intn(MAX)] = true
    }

    for i := 0; i <= MAX; i++ {
        if _, ok := m[i]; ok {
            fmt.Printf("%v is in map\n", i)
        } else {
            fmt.Printf("%v is not in map\n", i)
        }
    }
}

Here it is on the go playground

Here's another solution without BigDecimals

Truncate:

(math floor 1.23456789 * 100) / 100

Round:

(math rint 1.23456789 * 100) / 100

Or for any double n and precision p:

def truncateAt(n: Double, p: Int): Double = { val s = math pow (10, p); (math floor n * s) / s }

Similar can be done for the rounding function, this time using currying:

def roundAt(p: Int)(n: Double): Double = { val s = math pow (10, p); (math round n * s) / s }

which is more reusable, e.g. when rounding money amounts the following could be used:

def roundAt2(n: Double) = roundAt(2)(n)

I wrote up a little widget that allows you to pick both date and time.

DateTimeWidget

You don't need to call ValidateForm() twice, as you are above. You can just do

if(!ValidateForm()){
..
} else ...

I think that will solve the issue as above it looks like your comparing true/false to the string equivalent 'false'.

Use lang attribut on the input. Locale on my web app fr_FR, lang="en_EN" on the input number and i can use indifferently a comma or a dot. Firefox always display a dot, Chrome display a comma. But both separtor are valid.

The easiest way is to use this chrome extension link, happy web service requesting

For final class add below to mock and call static or non static.

1- add this in class level @SuppressStatucInitializationFor(value ={class name with package})
2- PowerMockito.mockStatic(classname.class) will mock class
3- then use your when statement to return mock object when calling method of this class.

Enjoy

You can also use react router dom library useHistory;

`
import { useHistory } from "react-router-dom";

function HomeButton() {
  let history = useHistory();

  function handleClick() {
    history.push("/home");
  }

  return (
    <button type="button" onClick={handleClick}>
      Go home
    </button>
  );
}
`

https://reactrouter.com/web/api/Hooks/usehistory

In most cases you will only want to call the toggle function if the toggle button is visible...

if ($('.navbar-toggler').is(":visible")) $('.navbar-toggler').click();

Use these 4 simple commands

Step 1 : git checkout <branch_name>

This is obvious to go into that branch.

Step 2 : git pull -s recursive -X theirs

Take remote branch changes and replace with their changes if conflict arise. Here if you do git status you will get something like this your branch is ahead of 'origin/master' by 3 commits.

Step 3 : git reset --hard origin/<branch_name>

Step 4 : git fetch

Hard reset your branch.

Enjoy.

This is a direct answer to the question 'Copying files from host to Docker container' raised in this question in the title.

Try docker cp. It is the easiest way to do that and works even on my Mac. Usage:

docker cp /root/some-file.txt some-docker-container:/root

This will copy the file some-file.txt in the directory /root on your host machine into the Docker container named some-docker-container into the directory /root. It is very close to the secure copy syntax. And as shown in the previous post, you can use it vice versa. I.e., you also copy files from the container to the host.

And before you downlink this post, please enter docker cp --help. Reading the documentation can be very helpful, sometimes...

If you don't like that way and you want data volumes in your already created and running container, then recreation is your only option today. See also How can I add a volume to an existing Docker container?.

The javax namespace is usually (that's a loaded word) used for standard extensions, currently known as optional packages. The standard extensions are a subset of the non-core APIs; the other segment of the non-core APIs obviously called the non-standard extensions, occupying the namespaces like com.sun.* or com.ibm.. The core APIs take up the java. namespace.

Not everything in the Java API world starts off in core, which is why extensions are usually born out of JSR requests. They are eventually promoted to core based on 'wise counsel'.

The interest in this nomenclature, came out of a faux pas on Sun's part - extensions could have been promoted to core, i.e. moved from javax.* to java.* breaking the backward compatibility promise. Programmers cried hoarse, and better sense prevailed. This is why, the Swing API although part of the core, continues to remain in the javax.* namespace. And that is also how packages get promoted from extensions to core - they are simply made available for download as part of the JDK and JRE.

substring is definitely best, but here's one strsplit alternative, since I haven't seen one yet.

> x <- 'hello stackoverflow'
> strsplit(x, '')[[1]][1]
## [1] "h"

or equivalently

> unlist(strsplit(x, ''))[1]
## [1] "h"

And you can paste the rest of the string back together.

> paste0(strsplit(x, '')[[1]][-1], collapse = '')
## [1] "ello stackoverflow"

C++ gives you three ways to pass an object: by pointer, by reference, and by value. Java limits you with the latter one (the only exception is primitive types like int, boolean etc). If you want to use C++ not just like a weird toy, then you'd better get to know the difference between these three ways.

Java pretends that there is no such problem as 'who and when should destroy this?'. The answer is: The Garbage Collector, Great and Awful. Nevertheless, it can't provide 100% protection against memory leaks (yes, java can leak memory). Actually, GC gives you a false sense of safety. The bigger your SUV, the longer your way to the evacuator.

C++ leaves you face-to-face with object's lifecycle management. Well, there are means to deal with that (smart pointers family, QObject in Qt and so on), but none of them can be used in 'fire and forget' manner like GC: you should always keep in mind memory handling. Not only should you care about destroying an object, you also have to avoid destroying the same object more than once.

Not scared yet? Ok: cyclic references - handle them yourself, human. And remember: kill each object precisely once, we C++ runtimes don't like those who mess with corpses, leave dead ones alone.

So, back to your question.

When you pass your object around by value, not by pointer or by reference, you copy the object (the whole object, whether it's a couple of bytes or a huge database dump - you're smart enough to care to avoid latter, aren't you?) every time you do '='. And to access the object's members, you use '.' (dot).

When you pass your object by pointer, you copy just a few bytes (4 on 32-bit systems, 8 on 64-bit ones), namely - the address of this object. And to show this to everyone, you use this fancy '->' operator when you access the members. Or you can use the combination of '*' and '.'.

When you use references, then you get the pointer that pretends to be a value. It's a pointer, but you access the members through '.'.

And, to blow your mind one more time: when you declare several variables separated by commas, then (watch the hands):

• Type is given to everyone
• Value/pointer/reference modifier is individual

Example:

struct MyStruct
{
    int* someIntPointer, someInt; //here comes the surprise
    MyStruct *somePointer;
    MyStruct &someReference;
};

MyStruct s1; //we allocated an object on stack, not in heap

s1.someInt = 1; //someInt is of type 'int', not 'int*' - value/pointer modifier is individual
s1.someIntPointer = &s1.someInt;
*s1.someIntPointer = 2; //now s1.someInt has value '2'
s1.somePointer = &s1;
s1.someReference = s1; //note there is no '&' operator: reference tries to look like value
s1.somePointer->someInt = 3; //now s1.someInt has value '3'
*(s1.somePointer).someInt = 3; //same as above line
*s1.somePointer->someIntPointer = 4; //now s1.someInt has value '4'

s1.someReference.someInt = 5; //now s1.someInt has value '5'
                              //although someReference is not value, it's members are accessed through '.'

MyStruct s2 = s1; //'NO WAY' the compiler will say. Go define your '=' operator and come back.

//OK, assume we have '=' defined in MyStruct

s2.someInt = 0; //s2.someInt == 0, but s1.someInt is still 5 - it's two completely different objects, not the references to the same one

Use data type LONGBLOB instead of BLOB in your database table.

Should be called from synchronized block : wait() method is always called from synchronized block i.e. wait() method needs to lock object monitor before object on which it is called. But sleep() method can be called from outside synchronized block i.e. sleep() method doesn’t need any object monitor.

IllegalMonitorStateException : if wait() method is called without acquiring object lock than IllegalMonitorStateException is thrown at runtime, but sleep() method never throws such exception.

Belongs to which class : wait() method belongs to java.lang.Object class but sleep() method belongs to java.lang.Thread class.

Called on object or thread : wait() method is called on objects but sleep() method is called on Threads not objects.

Thread state : when wait() method is called on object, thread that holded object’s monitor goes from running to waiting state and can return to runnable state only when notify() or notifyAll() method is called on that object. And later thread scheduler schedules that thread to go from from runnable to running state. when sleep() is called on thread it goes from running to waiting state and can return to runnable state when sleep time is up.

When called from synchronized block : when wait() method is called thread leaves the object lock. But sleep() method when called from synchronized block or method thread doesn’t leaves object lock.

For More Reference

You could try using £ or £ instead of embedding the character directly; if you embed it directly, you're more likely to run into encoding issues in which your editor saves the file is ISO-8859-1 but it's interpreted as UTF-8, or vice versa.

If you want to embed it (or other Unicode characters) directly, make sure you actually save your file as UTF-8, and set the encoding as you did with the Content-Type header. Make sure when you get the file from the server that the header is present and correct, and that the file hasn't been transcoded by the web server.

Both proposed possibilities (std::swap and std::iter_swap) work, they just have a slightly different syntax. Let's swap a vector's first and second element, v[0] and v[1].

We can swap based on the objects contents:

std::swap(v[0],v[1]);

Or swap based on the underlying iterator:

std::iter_swap(v.begin(),v.begin()+1);

Try it:

int main() {
  int arr[] = {1,2,3,4,5,6,7,8,9};
  std::vector<int> * v = new std::vector<int>(arr, arr + sizeof(arr) / sizeof(arr[0]));
  // put one of the above swap lines here
  // ..
  for (std::vector<int>::iterator i=v->begin(); i!=v->end(); i++)
    std::cout << *i << " ";
  std::cout << std::endl;
}

Both times you get the first two elements swapped:

2 1 3 4 5 6 7 8 9

 SELECT id, GROUP_CONCAT(CONCAT_WS(':', Name, CAST(Value AS CHAR(7))) SEPARATOR ',') AS result 
    FROM test GROUP BY id

you must use cast or convert, otherwise will be return BLOB

result is

id         Column
1          A:4,A:5,B:8
2          C:9

you have to handle result once again by program such as python or java

You can use Create USer to create a user

CREATE LOGIN sam
    WITH PASSWORD = '340$Uuxwp7Mcxo7Khy';
USE AdventureWorks;
CREATE USER sam FOR LOGIN sam;
GO 

and to Grant (Read-only access) you can use the following

GRANT SELECT TO sam

Hope that helps.

It depends on exactly what the requirements are. In particular, how do you want to handle "\r" on its own? Should that count as a line break or not? As an example, how should "a\n\rb" be treated? Is that one very odd line break, one "\n" break and then a rogue "\r", or two separate linebreaks? If "\r" and "\n" can both be linebreaks on their own, why should "\r\n" not be treated as two linebreaks?

Here's some code which I suspect is reasonably efficient.

using System;
using System.Text;

class LineBreaks
{    
    static void Main()
    {
        Test("a\nb");
        Test("a\nb\r\nc");
        Test("a\r\nb\r\nc");
        Test("a\rb\nc");
        Test("a\r");
        Test("a\n");
        Test("a\r\n");
    }

    static void Test(string input)
    {
        string normalized = NormalizeLineBreaks(input);
        string debug = normalized.Replace("\r", "\\r")
                                 .Replace("\n", "\\n");
        Console.WriteLine(debug);
    }

    static string NormalizeLineBreaks(string input)
    {
        // Allow 10% as a rough guess of how much the string may grow.
        // If we're wrong we'll either waste space or have extra copies -
        // it will still work
        StringBuilder builder = new StringBuilder((int) (input.Length * 1.1));

        bool lastWasCR = false;

        foreach (char c in input)
        {
            if (lastWasCR)
            {
                lastWasCR = false;
                if (c == '\n')
                {
                    continue; // Already written \r\n
                }
            }
            switch (c)
            {
                case '\r':
                    builder.Append("\r\n");
                    lastWasCR = true;
                    break;
                case '\n':
                    builder.Append("\r\n");
                    break;
                default:
                    builder.Append(c);
                    break;
            }
        }
        return builder.ToString();
    }
}

$sql = "SELECT count(id) as value FROM your_table WHERE your_field = ?";
$your_count = $this->db->query($sql, array($your_field))->row(0)->value;
echo $your_count;

Prior to running python, type cd in the commmand line, and it will tell you the directory you are currently in. When python runs, it can only access files in this directory. hello.py needs to be in this directory, so you can move hello.py from its existing location to this folder as you would move any other file in Windows or you can change directories and run python in the directory hello.py is.

Edit: Python cannot access the files in the subdirectory unless a path to it provided. You can access files in any directory by providing the path. python C:\Python27\Projects\hello.p

If key is present table.put(key, val) will just overwrite the value else it'll create a new entry. Poof! and you are done. :)

you can get the value from a map by using key is table.get(key); That's about it

You can set timeout like this,

con.setConnectTimeout(connectTimeout);
con.setReadTimeout(socketTimeout);

I've removed tab pages in the past to prevent the user from clicking them. This probably isn't the best solution though because they may need to see that the tab page exists.

It can be due to CursorTypeEnum also. My scenario was the initial value equal to CursorTypeEnum.adOpenStatic 3.

After changed to default, CursorTypeEnum.adOpenForwardOnly 0, it backs to normal.

You should be able to add the Java Development Tools by selecting 'Help' -> 'Install New Software', there you select the 'Juno' update site, then 'Programming Languages' -> 'Eclipse Java Development Tools'.

After that, you will be able to run your JUnit tests with 'Right Click' -> 'Run as' -> 'JUnit test'.

If you created your project with Spring Initializr, everything should be configured correctly and all you need to do is run...

./gradlew clean test --info

• Use --info if you want to see test output.
• Use clean if you want to re-run tests that have already passed since the last change.

Dependencies required in build.gradle for testing in Spring Boot...

dependencies {
    compile('org.springframework.boot:spring-boot-starter')
    testCompile('org.springframework.boot:spring-boot-starter-test')
}

For some reason the test runner doesn't tell you this, but it produces an HTML report in build/reports/tests/test/index.html.

You don't necessarily need Ajax for this. Just an <a> link is enough if you set the content-disposition to attachment in the server side code. This way the parent page will just stay open, if that was your major concern (why would you unnecessarily have chosen Ajax for this otherwise?). Besides, there is no way to handle this nicely acynchronously. PDF is not character data. It's binary data. You can't do stuff like $(element).load(). You want to use completely new request for this. For that <a href="pdfservlet/filename.pdf">pdf</a> is perfectly suitable.

To assist you more with the server side code, you'll need to tell more about the language used and post an excerpt of the code attempts.

Multi-dimension arrays are (n-1)-dimension matrices.

So int[,] square = new int[2,2] is square matrix 2x2, int[,,] cube = new int [3,3,3] is a cube - square matrix 3x3. Proportionality is not required.

Jagged arrays are just array of arrays - an array where each cell contains an array.

So MDA are proportional, JD may be not! Each cell can contains an array of arbitrary length!

No way to do this that I know of, although I'm very curious to read if anyone has a good answer. I have been thinking about adding something like this to one of the apps my company builds, but have found no good way to do it.

The one thing I can think of (although not directly on point) is that I believe you can limit the total memory usage for a COM+ application in Windows. It would require the app to be written to run in COM+, of course, but it's the closest way I know of.

The working set stuff is good (Job Objects also control working sets), but that's not total memory usage, only real memory usage (paged in) at any one time. It may work for what you want, but afaik it doesn't limit total allocated memory.

You want to use regexp_substr() for this. This should work for your example:

select regexp_substr(val, '[^/]+/[^/]+', 1, 1) as part1,
       regexp_substr(val, '[^/]+$', 1, 1) as part2
from (select 'F/P/O' as val from dual) t

Here, by the way, is the SQL Fiddle.

Oops. I missed the part of the question where it says the last delimiter. For that, we can use regex_replace() for the first part:

select regexp_replace(val, '/[^/]+$', '', 1, 1) as part1,
       regexp_substr(val, '[^/]+$', 1, 1) as part2
from (select 'F/P/O' as val from dual) t

And here is this corresponding SQL Fiddle.

You can use Cell.Interior.Color, I've used it to count the number of cells in a range that have a given background color (ie. matching my legend).

Because I have just implemented it:

In Groovy/Grails it would be:

def locale = Locale.getAvailableLocales().find { availableLocale ->
      return availableLocale.toString().equals(searchedLocale)
}

Node.js runs on top of the V8 Javascript engine, which itself optimizes performance by compiling javascript code into native code... so no reason really for compiling then, is there?

https://developers.google.com/v8/design#mach_code

Additionally if you want to know which extensions are available on your server: SELECT * FROM pg_available_extensions

Here is the alternative command:

gnuplot -p -e 'plot for [file in system("find . -name \\*.txt -depth 1")] file using 1:2 title file with lines'

this really worked form for I am making a table using thymeleaf and inside the table there is two buttons in one form...thanks man even this thread is old it still helps me alot!

<th:block th:each="infos : ${infos}">_x000D_
<tr>_x000D_
<form method="POST">_x000D_
<td><input class="admin" type="text" name="firstName" id="firstName" th:value="${infos.firstName}"/></td>_x000D_
<td><input class="admin" type="text" name="lastName" id="lastName" th:value="${infos.lastName}"/></td>_x000D_
<td><input class="admin" type="email" name="email" id="email" th:value="${infos.email}"/></td>_x000D_
<td><input class="admin" type="text" name="passWord" id="passWord" th:value="${infos.passWord}"/></td>_x000D_
<td><input class="admin" type="date" name="birthDate" id="birthDate" th:value="${infos.birthDate}"/></td>_x000D_
<td>_x000D_
<select class="admin" name="gender" id="gender">_x000D_
<option><label th:text="${infos.gender}"></label></option>_x000D_
<option value="Male">Male</option>_x000D_
<option value="Female">Female</option>_x000D_
</select>_x000D_
</td>_x000D_
<td><select class="admin" name="status" id="status">_x000D_
<option><label th:text="${infos.status}"></label></option>_x000D_
<option value="Yes">Yes</option>_x000D_
<option value="No">No</option>_x000D_
</select>_x000D_
</td>_x000D_
<td><select class="admin" name="ustatus" id="ustatus">_x000D_
<option><label th:text="${infos.ustatus}"></label></option>_x000D_
<option value="Yes">Yes</option>_x000D_
<option value="No">No</option>_x000D_
</select>_x000D_
</td>_x000D_
<td><select class="admin" name="type" id="type">_x000D_
<option><label th:text="${infos.type}"></label></option>_x000D_
<option value="Yes">Yes</option>_x000D_
<option value="No">No</option>_x000D_
</select></td>_x000D_
<td><input class="register" id="mobileNumber" type="text" th:value="${infos.mobileNumber}" name="mobileNumber" onkeypress="return isNumberKey(event)" maxlength="11"/></td>_x000D_
<td><input class="table" type="submit" id="submit" name="submit" value="Upd" Style="color: white; background-color:navy; border-color: black;" th:formaction="@{/updates}"/></td>_x000D_
<td><input class="table" type="submit" id="submit" name="submit" value="Del" Style="color: white; background-color:navy; border-color: black;" th:formaction="@{/delete}"/></td>_x000D_
</form>_x000D_
</tr>_x000D_
</th:block>

With Spring MVC, there are 3 different ways to perform validation : using annotation, manually, or a mix of both. There is not a unique "cleanest and best way" to validate, but there is probably one that fits your project/problem/context better.

Let's have a User :

public class User {

    private String name;

    ...

}

Method 1 : If you have Spring 3.x+ and simple validation to do, use javax.validation.constraints annotations (also known as JSR-303 annotations).

public class User {

    @NotNull
    private String name;

    ...

}

You will need a JSR-303 provider in your libraries, like Hibernate Validator who is the reference implementation (this library has nothing to do with databases and relational mapping, it just does validation :-).

Then in your controller you would have something like :

@RequestMapping(value="/user", method=RequestMethod.POST)
public createUser(Model model, @Valid @ModelAttribute("user") User user, BindingResult result){
    if (result.hasErrors()){
      // do something
    }
    else {
      // do something else
    }
}

Notice the @Valid : if the user happens to have a null name, result.hasErrors() will be true.

Method 2 : If you have complex validation (like big business validation logic, conditional validation across multiple fields, etc.), or for some reason you cannot use method 1, use manual validation. It is a good practice to separate the controller’s code from the validation logic. Don't create your validation class(es) from scratch, Spring provides a handy org.springframework.validation.Validator interface (since Spring 2).

So let's say you have

public class User {

    private String name;

    private Integer birthYear;
    private User responsibleUser;
    ...

}

and you want to do some "complex" validation like : if the user's age is under 18, responsibleUser must not be null and responsibleUser's age must be over 21.

You will do something like this

public class UserValidator implements Validator {

    @Override
    public boolean supports(Class clazz) {
      return User.class.equals(clazz);
    }

    @Override
    public void validate(Object target, Errors errors) {
      User user = (User) target;

      if(user.getName() == null) {
          errors.rejectValue("name", "your_error_code");
      }

      // do "complex" validation here

    }

}

Then in your controller you would have :

@RequestMapping(value="/user", method=RequestMethod.POST)
    public createUser(Model model, @ModelAttribute("user") User user, BindingResult result){
        UserValidator userValidator = new UserValidator();
        userValidator.validate(user, result);

        if (result.hasErrors()){
          // do something
        }
        else {
          // do something else
        }
}

If there are validation errors, result.hasErrors() will be true.

Note : You can also set the validator in a @InitBinder method of the controller, with "binder.setValidator(...)" (in which case a mix use of method 1 and 2 would not be possible, because you replace the default validator). Or you could instantiate it in the default constructor of the controller. Or have a @Component/@Service UserValidator that you inject (@Autowired) in your controller : very useful, because most validators are singletons + unit test mocking becomes easier + your validator could call other Spring components.

Method 3 : Why not using a combination of both methods? Validate the simple stuff, like the "name" attribute, with annotations (it is quick to do, concise and more readable). Keep the heavy validations for validators (when it would take hours to code custom complex validation annotations, or just when it is not possible to use annotations). I did this on a former project, it worked like a charm, quick & easy.

Warning : you must not mistake validation handling for exception handling. Read this post to know when to use them.

References :

• A very interesting blog post about bean validation (Original link is dead)
• Another good blog post about validation (Original link is dead)
• Latest Spring documentation about validation

//Multiple selection:

          private void clbsec(CheckedListBox clb, string text)
          {
              for (int i = 0; i < clb.Items.Count; i++)
              {
                  if(text == clb.Items[i].ToString())
                  {
                      clb.SetItemChecked(i, true);
                  }
              }
          }

using ==>

clbsec(checkedListBox1,"michael");

or 

clbsec(checkedListBox1,textBox1.Text);

or

clbsec(checkedListBox1,dataGridView1.CurrentCell.Value.toString());

In My case (Using Javascript insidde Razor) This worked perfectly inside an Foreach loop

google.maps.event.addListener(marker, 'click', function() {
    marker.info.open(map, this);
});

One can also do this with a compact version of @TomAugspurger's answer, like so:

df = df1.merge(df2, how='left', on=['Year', 'Week', 'Colour']).merge(df3[['Week', 'Colour', 'Val3']], how='left', on=['Week', 'Colour'])

Yes, use DialogFragment and in onCreateDialog you can simply use an AlertDialog builder anyway to create a simple AlertDialog with Yes/No confirmation buttons. Not very much code at all.

With regards handling events in your fragment there would be various ways of doing it but I simply define a message Handler in my Fragment, pass it into the DialogFragment via its constructor and then pass messages back to my fragment's handler as approprirate on the various click events. Again various ways of doing that but the following works for me.

In the dialog hold a message and instantiate it in the constructor:

private Message okMessage;
...
okMessage = handler.obtainMessage(MY_MSG_WHAT, MY_MSG_OK);

Implement the onClickListener in your dialog and then call the handler as appropriate:

public void onClick(.....
    if (which == DialogInterface.BUTTON_POSITIVE) {
        final Message toSend = Message.obtain(okMessage);
        toSend.sendToTarget();
    }
 }

Edit

And as Message is parcelable you can save it out in onSaveInstanceState and restore it

outState.putParcelable("okMessage", okMessage);

Then in onCreate

if (savedInstanceState != null) {
    okMessage = savedInstanceState.getParcelable("okMessage");
}

Cannot say about the "official nomenclature" - infact I wonder whose word will be "official" anyway - but here's how they can be called:

• Horizontal stripes : Hamburger menu / icon / button -> -> as per wiki. A name like "sandwich button" would also have been good IMO :(
• Vertical ellipsis : Dango menu / icon / button -> -> credits to this guy. This one I like thanks to the song from the super duper anime Clannad

Just add overflow:auto; to parent div

<div style="width: 100%;overflow:auto;">
    <div style="float:left; width: 80%">
    </div>
    <div style="float:right;">
    </div>
</div>

Working Demo

 INSERT INTO table (a,b) VALUES (1,2), (2,3), (3,4);

http://dev.mysql.com/doc/refman/5.5/en/insert.html

I have Similar issue with PrimeNG p_Dialog content and i fixed by below style for the contentStyle

height: 'calc(100vh - 127px)'

The following code works fine for me:

RewriteEngine on 
RewriteCond %{REQUEST_FILENAME} !-d 
RewriteCond %{REQUEST_FILENAME}\.php -f 
RewriteRule ^(.*)$ $1.php

Not sure about the exact reproduction steps for the error (HRESULT E_FAIL has been returned from a call to a COM component), but the solution for me was:

1. Close Visual Studio and Repair it through Control Panel.
2. Restart system

After the restart, the error was gone.

tl;dr What to do in modern (2018) times? Assume tel: is supported, use it and forget about anything else.

The tel: URI scheme RFC5431 (as well as sms: but also feed:, maps:, youtube: and others) is handled by protocol handlers (as mailto: and http: are).

They're unrelated to HTML5 specification (it has been out there from 90s and documented first time back in 2k with RFC2806) then you can't check for their support using tools as modernizr. A protocol handler may be installed by an application (for example Skype installs a callto: protocol handler with same meaning and behaviour of tel: but it's not a standard), natively supported by browser or installed (with some limitations) by website itself.

What HTML5 added is support for installing custom web based protocol handlers (with registerProtocolHandler() and related functions) simplifying also the check for their support through isProtocolHandlerRegistered() function.

There is some easy ways to determine if there is an handler or not:" How to detect browser's protocol handlers?).

In general what I suggest is:

1. If you're running on a mobile device then you can safely assume tel: is supported (yes, it's not true for very old devices but IMO you can ignore them).
2. If JS isn't active then do nothing.
3. If you're running on desktop browsers then you can use one of the techniques in the linked post to determine if it's supported.
4. If tel: isn't supported then change links to use callto: and repeat check desctibed in 3.
5. If tel: and callto: aren't supported (or - in a desktop browser - you can't detect their support) then simply remove that link replacing URL in href with javascript:void(0) and (if number isn't repeated in text span) putting, telephone number in title. Here HTML5 microdata won't help users (just search engines). Note that newer versions of Skype handle both callto: and tel:.

Please note that (at least on latest Windows versions) there is always a - fake - registered protocol handler called App Picker (that annoying window that let you choose with which application you want to open an unknown file). This may vanish your tests so if you don't want to handle Windows environment as a special case you can simplify this process as:

1. If you're running on a mobile device then assume tel: is supported.
2. If you're running on desktop then replace tel: with callto:. then drop tel: or leave it as is (assuming there are good chances Skype is installed).

There is one fatal flaw in this otherwise great and helpful test: As memset is the first instruction, there seems to be some "memory overhead" or so which makes it extremely slow. Moving the timing of memset to second place and something else to first place or simply timing memset twice makes memset the fastest with all compile switches!!!

I encounter same trouble as you, this is my solution.

body {
    background-image: url(image/background.jpg);
    background-size: 100% 100%;
}

The API doc for IllegalArgumentException:

Thrown to indicate that a method has been passed an illegal or inappropriate argument.

From looking at how it is used in the JDK libraries, I would say:

• It seems like a defensive measure to complain about obviously bad input before the input can get into the works and cause something to fail halfway through with a nonsensical error message.

• It's used for cases where it would be too annoying to throw a checked exception (although it makes an appearance in the java.lang.reflect code, where concern about ridiculous levels of checked-exception-throwing is not otherwise apparent).

I would use IllegalArgumentException to do last ditch defensive argument checking for common utilities (trying to stay consistent with the JDK usage). Or where the expectation is that a bad argument is a programmer error, similar to an NullPointerException. I wouldn't use it to implement validation in business code. I certainly wouldn't use it for the email example.

Easiest way to do this with Chartjs. Just add below line in options:

pieceLabel: {
        fontColor: '#000'
    }

Best of luck

function getURLParameters(paramName) 
{
        var sURL = window.document.URL.toString();  
    if (sURL.indexOf("?") > 0)
    {
       var arrParams = sURL.split("?");         
       var arrURLParams = arrParams[1].split("&");      
       var arrParamNames = new Array(arrURLParams.length);
       var arrParamValues = new Array(arrURLParams.length);     
       var i = 0;
       for (i=0;i<arrURLParams.length;i++)
       {
        var sParam =  arrURLParams[i].split("=");
        arrParamNames[i] = sParam[0];
        if (sParam[1] != "")
            arrParamValues[i] = unescape(sParam[1]);
        else
            arrParamValues[i] = "No Value";
       }

       for (i=0;i<arrURLParams.length;i++)
       {
                if(arrParamNames[i] == paramName){
            //alert("Param:"+arrParamValues[i]);
                return arrParamValues[i];
             }
       }
       return "No Parameters Found";
    }

}

Regarding your update, the only way to solve this in Java is to write code that covers all cases with lots of if and else and instanceof expressions. What you attempt to do looks as if are used to program with dynamic languages. In static languages, what you attempt to do is almost impossible and one would probably choose a totally different approach for what you attempt to do. Static languages are just not as flexible as dynamic ones :)

Good examples of Java best practice are the answer by BalusC (ie ObjectConverter) and the answer by Andreas_D (ie Adapter) below.

That does not make sense, in

String a = (theType) 5;

the type of a is statically bound to be String so it does not make any sense to have a dynamic cast to this static type.

PS: The first line of your example could be written as Class<String> stringClass = String.class; but still, you cannot use stringClass to cast variables.

By the way, you can use next code in you event handler:

switch(e.EventType)
{
  case SerialData.Chars:
  {
    // means you receives something
    break;
  }
  case SerialData.Eof:
  {
    // means receiving ended
    break;
  }
}

You really can't display 3 columns of data as a 'surface'. Only having one column of 'Z' data will give you a line in 3 dimensional space, not a surface (Or in the case of your data, 3 separate lines). For Excel to be able to work with this data, it needs to be formatted as shown below:

      13    21   29      37    45   
1000  75.2                              
1000       79.21                            
1000             80.02                      
5000             87.9                   
5000                    88.54               
5000                           88.56            
10000            90.11      
10000                   90.79   
10000                          90.87

Then, to get an actual surface, you would need to fill in all the missing cells with the appropriate Z-values. If you don't have those, then you are better off showing this as 3 separate 2D lines, because there isn't enough data for a surface.

The best 3D representation that Excel will give you of the above data is pretty confusing:

Representing this limited dataset as 2D data might be a better choice:

As a note for future reference, these types of questions usually do a little better on superuser.com.

In the first two cases, you simply forgot to actually call the member function (!, it's not a value) std::vector<int>::size like this:

#include <vector>

int main () {
    std::vector<int> v;
    auto size = v.size();
}

Your third call

int size = v.size();

triggers a warning, as not every return value of that function (usually a 64 bit unsigned int) can be represented as a 32 bit signed int.

int size = static_cast<int>(v.size());

would always compile cleanly and also explicitly states that your conversion from std::vector::size_type to int was intended.

Note that if the size of the vector is greater than the biggest number an int can represent, size will contain an implementation defined (de facto garbage) value.

Overview: Use the DbType to set the parameter type.

var parameter = new SqlParameter();
parameter.ParameterName = "@UserID";
parameter.DbType = DbType.Int32;
parameter.Value = userID.ToString();

var command = conn.CreateCommand()
command.Parameters.Add(parameter);
var reader = await command.ExecuteReaderAsync()

Add this code to a .reg file. Double-click and and confirm. Restart Excel.

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\options]
"LegacyAnchorResize"=dword:00000001

[HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\Draw]
"UpdateDeviceInfoForEmf"=dword:00000001

This will get you to an answer for your simple case, but can you expand on how you'll know which columns will need to be compared (B and C in this case) and what the initial range (A1:D5 in this case) will be? Then I can try to provide a more complete answer.

Sub setCondFormat()
    Range("B3").Select
    With Range("B3:H63")
        .FormatConditions.Add Type:=xlExpression, Formula1:= _
          "=IF($D3="""",FALSE,IF($F3>=$E3,TRUE,FALSE))"
        With .FormatConditions(.FormatConditions.Count)
            .SetFirstPriority
            With .Interior
                .PatternColorIndex = xlAutomatic
                .Color = 5287936
                .TintAndShade = 0
            End With
        End With
    End With
End Sub

Note: this is tested in Excel 2010.

Edit: Updated code based on comments.

setTimeout(expression, timeout); runs the code/function once after the timeout.

setInterval(expression, timeout); runs the code/function in intervals, with the length of the timeout between them.

Example:

var intervalID = setInterval(alert, 1000); // Will alert every second.
// clearInterval(intervalID); // Will clear the timer.

setTimeout(alert, 1000); // Will alert once, after a second.

I believe it means 'anything but a whitespace character'.

I just hit this with IdeaVim plugin installed, where even if I set Show Line Numbers, it continued to revert to hiding them.

The (forehead-slapping-worthy) solution was:

:set nu

Ran into this error bc cell re-use identifier was wrong-- a rookie mistake but it happens: 1. Makes SURE cell re-use idenifier has no misspellings or missing letters. 2. Along same line, don't forget capitalization counts. 3. Zeroes are not "O"s (Ohs)

If it is two IEnumerable lists you can't use AddRange, but you can use Concat.

IEnumerable<int> first = new List<int>{1,1,2,3,5};
IEnumerable<int> second = new List<int>{8,13,21,34,55};

var allItems = first.Concat(second);
// 1,1,2,3,5,8,13,21,34,55

Infinite view pager by overriding 4 adapter methods in your existing adapter class

    @Override
    public int getCount() {
        return Integer.MAX_VALUE;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        String title = mTitleList.get(position % mActualTitleListSize);
        return title;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        int virtualPosition = position % mActualTitleListSize;
        return super.instantiateItem(container, virtualPosition);
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        int virtualPosition = position % mActualTitleListSize;
        super.destroyItem(container, virtualPosition, object);
    }

I've been hanging on to this link for more than a year, it's an article entitled "Five great programming fonts". The five are good fonts, but the article includes comments with a dozen more interesting answers.

http://forums.programming-designs.com/viewtopic.php?pid=3338

Use the Oracle documentation and search for keyword "trigger" in your browser.

This approach should work with other metadata type questions.

First Day Of Current Week.

select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),0),106)

Last Day Of Current Week.

select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),6),106)

First Day Of Last week.

select CONVERT(varchar,DATEADD(week,datediff(week,7,getdate()),0),106)

Last Day Of Last Week.

select CONVERT(varchar,dateadd(week,datediff(week,7,getdate()),6),106)

First Day Of Next Week.

select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),7),106)

Last Day Of Next Week.

select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),13),106)

First Day Of Current Month.

select CONVERT(varchar,dateadd(d,-(day(getdate()-1)),getdate()),106)

Last Day Of Current Month.

select CONVERT(varchar,dateadd(d,-(day(dateadd(m,1,getdate()))),dateadd(m,1,getdate())),106)

In this Example Works on Only date is 31. and remaining days are not.

First Day Of Last Month.

select CONVERT(varchar,dateadd(d,-(day(dateadd(m,-1,getdate()-2))),dateadd(m,-1,getdate()-1)),106)

Last Day Of Last Month.

select CONVERT(varchar,dateadd(d,-(day(getdate())),getdate()),106)

First Day Of Next Month.

select CONVERT(varchar,dateadd(d,-(day(dateadd(m,1,getdate()-1))),dateadd(m,1,getdate())),106)

Last Day Of Next Month.

select CONVERT(varchar,dateadd(d,-(day(dateadd(m,2,getdate()))),DATEADD(m,2,getdate())),106)

First Day Of Current Year.

select CONVERT(varchar,dateadd(year,datediff(year,0,getdate()),0),106)

Last Day Of Current Year.

select CONVERT(varchar,dateadd(ms,-2,dateadd(year,0,dateadd(year,datediff(year,0,getdate())+1,0))),106)

First Day of Last Year.

select CONVERT(varchar,dateadd(year,datediff(year,0,getdate())-1,0),106)

Last Day Of Last Year.

select CONVERT(varchar,dateadd(ms,-2,dateadd(year,0,dateadd(year,datediff(year,0,getdate()),0))),106)

First Day Of Next Year.

select CONVERT(varchar,dateadd(YEAR,DATEDIFF(year,0,getdate())+1,0),106)

Last Day Of Next Year.

select CONVERT(varchar,dateadd(ms,-2,dateadd(year,0,dateadd(year,datediff(year,0,getdate())+2,0))),106)

Your syntax is fine, it will return rows where LastAdDate lies within the last 6 months;

select cast('01-jan-1970' as datetime) as LastAdDate into #PubAdvTransData 
    union select GETDATE()
    union select NULL
    union select '01-feb-2010'

DECLARE @sp_Date DATETIME = DateAdd(m, -6, GETDATE())

SELECT * FROM #PubAdvTransData pat
     WHERE (pat.LastAdDate > @sp_Date)

>2010-02-01 00:00:00.000
>2010-04-29 21:12:29.920

Are you sure LastAdDate is of type DATETIME?

Eclipse uses native OS controls for most UI aspects (buttons, menus, lists, etc.). That's where colors for most of the IDE come from. The first step in making a "dark IDE" is to modify your OS color theme. Then you can add the color themes plugin to complete the look.

I had a similar problem which I fixed by moving some fragment transaction code from onResume() into onStart().

To be more precise: My app is a launcher. After pressing the Android Home button, the user can choose a launcher until his/her decision is remembered. When going "back" at this point (e. g. by tapping in the greyish area) the app crashed.

Maybe this helps somebody.

I tested this one and it works

// Map from firestore
// Using flutterfire package hence the returned data()
Map<String, dynamic> data = documentSnapshot.data();
DateTime _timestamp = data['timestamp'].toDate();

Test details can be found here: https://www.youtube.com/watch?v=W_X8J7uBPNw&feature=youtu.be

Qt works very well with graphics. In my opinion it is more versatile than PIL.

You get all the features you want for graphics manipulation, but there's also vector graphics and even support for real printers. And all of that in one uniform API, QPainter.

To use Qt you need a Python binding for it: PySide or PyQt4.
They both support Python 3.

Here is a simple example that loads a JPG image, draws an antialiased circle of radius 10 at coordinates (20, 20) with the color of the pixel that was at those coordinates and saves the modified image as a PNG file:

from PySide.QtCore import *
from PySide.QtGui import *

app = QCoreApplication([])

img = QImage('input.jpg')

g = QPainter(img)
g.setRenderHint(QPainter.Antialiasing)
g.setBrush(QColor(img.pixel(20, 20)))
g.drawEllipse(QPoint(20, 20), 10, 10)
g.end()

img.save('output.png')

But please note that this solution is quite 'heavyweight', because Qt is a large framework for making GUI applications.

I also have the same problem. Turned out I have the @PropertySource annotation set on the main Application class to read a different base properties file, so the normal "application.properties" is not used anymore.

One can invoke mysqldump locally against a remote server.

Example that worked for me:

mysqldump -h hostname-of-the-server -u mysql_user -p database_name > file.sql

I followed the mysqldump documentation on connection options.

Example Bold text:

UILabel *titleBold = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 200, 30)];
UIFont* myBoldFont = [UIFont boldSystemFontOfSize:[UIFont systemFontSize]];
[titleBold setFont:myBoldFont];

Example Italic text:

UILabel *subTitleItalic = [[UILabel alloc] initWithFrame:CGRectMake(10, 35, 200, 30)];
UIFont* myItalicFont = [UIFont italicSystemFontOfSize:[UIFont systemFontSize]];
[subTitleItalic setFont:myItalicFont];

Python might be overkill for this.

for file in *; do mencoder -some options $file; rm -f $file ; done

SHOW FULL TABLES IN database_name WHERE TABLE_TYPE LIKE 'VIEW';

MySQL query to find all views in a database

Make sure you create Resource and then create method inside it. That was the issue for me. Thanks

Quoting from http://dev.mysql.com/doc/refman/5.1/en/create-table.html

{INDEX|KEY}

So KEY is an INDEX ;)

This is swift 5 compatible answer. If you want to use one of the built-in colours then you can simply use

button.setTitleColor(.red, for: .normal)

If you want some custom colours, then create an extension for a UIColor as below first.

import UIKit
extension UIColor {
    static var themeMoreButton = UIColor.init(red: 53/255, green: 150/255, blue: 36/255, alpha: 1)
}

Then use it for your button as below.

button.setTitleColor(UIColor.themeMoreButton, for: .normal)

Tip: You can use this method to store custom colours from rgba colour code and reuse it throughout your application.

If at all possible, its always a good idea to create your XML using the XML classes rather than string manipulation - one of the benefits being that the classes will automatically escape characters as needed.

On Raspberry Pi I had a problem with /var/cache/fontconfig dir with large number of files. Removing it took more than hour. And of couse rm -rf *.cache* raised Argument list too long error. I used below one

find . -name '*.cache*' | xargs rm -f

Quick fix that worked for me:

for file in $(find "$JAVA_HOME" -name "*pack")
do 
    unpack200 "${file}" "${test_file/%pack/jar}";
done

pip install numpy scipy scikit-learn

if you don't have pip, install it using

python get-pip.py

Download get-pip.py from the following link. or use curl to download it.

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

May I suggest Node ORM?

https://github.com/dresende/node-orm2

There's documentation on the Readme, supports MySQL, PostgreSQL and SQLite.

MongoDB is available since version 2.1.x (released in July 2013)

UPDATE: This package is no longer maintained, per the project's README. It instead recommends bookshelf and sequelize

I have a feeling that most answers here overcomplicate the simple problem. If you already understand how the map works that should be fairly easy to grasp.

There are cases where we can end up with unwanted nested structures when using map(), the flatMap() method is designed to overcome this by avoiding wrapping.

Examples:

1

List<List<Integer>> result = Stream.of(Arrays.asList(1), Arrays.asList(2, 3))
  .collect(Collectors.toList());

We can avoid having nested lists by using flatMap:

List<Integer> result = Stream.of(Arrays.asList(1), Arrays.asList(2, 3))
  .flatMap(i -> i.stream())
  .collect(Collectors.toList());

2

Optional<Optional<String>> result = Optional.of(42)
      .map(id -> findById(id));

Optional<String> result = Optional.of(42)
      .flatMap(id -> findById(id));

where:

private Optional<String> findById(Integer id)

This did not work for me. I moved a repo from (e.g.) c:\project1\ to c:\repo\project1\ and Git for windows does not show any changes.

git status shows an error because one of the submodules "is not a git repository" and shows the old path. e.g. (names changed to protect IP)

fatal: Not a git repository: C:/project1/.git/modules/subproject/subproject2 fatal: 'git status --porcelain' failed in submodule subproject

I had to manually edit the .git files in the submodules to point to the correct relative path to the submodule's repo (in the main repo's .git/modules directory)

Try using cygwin instead of bash. that worked for me

I have met the similar problem.

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':app'.
> Failed to notify project evaluation listener.
   > org.gradle.api.tasks.compile.CompileOptions.setBootClasspath(Ljava/lang/String;)V

* Try:
Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/5.0-milestone-1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 7s
Build step 'Invoke Gradle script' changed build result to FAILURE
Build step 'Invoke Gradle script' marked build as failure
Finished: FAILURE

The key is you need to get a way to solve this kind of problems,not to solve this problem.

According to the log above,the most important information is:

Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output. Run with --scan to get full insights.

Most of the building problems of Gradle will be solved because when you use the specific Gradle build command,you can get more detailed and useful information that are clear.

*clean project
./gradlew clean  

*build project
./gradlew build

*build for debug package
./gradlew assembleDebug or ./gradlew aD

*build for release package
./gradlew assembleRelease or ./gradlew aR

*build for release package and install
./gradlew installRelease or ./gradlew iR Release

*build for debug package and install
./gradlew installDebug or ./gradlew iD Debug

*uninstall release package
./gradlew uninstallRelease or ./gradlew uR

*uninstall debug package
./gradlew uninstallDebug or ./gradlew uD 

*all the above command + "--info" or "--debug" or "--scan" or "--stacktrace" can get more detail information.

And then I found the problem is related with the version of Gradle,when I have changed Gradle from 5.0 to 4.1,and then it's OK.

You can create .war file back from your existing folder.

Using this command

cd /to/your/folder/location
jar -cvf my_web_app.war *

I had same error on Ubuntu 18.04

Delete your node_modules folder and run

sudo npm install --unsafe-perm=true

With:

global index_add_counter

You are not defining, just declaring so it's like saying there is a global index_add_counter variable elsewhere, and not create a global called index_add_counter. As you name don't exists, Python is telling you it can not import that name. So you need to simply remove the global keyword and initialize your variable:

index_add_counter = 0

Now you can import it with:

from app import index_add_counter

The construction:

global index_add_counter

is used inside modules' definitions to force the interpreter to look for that name in the modules' scope, not in the definition one:

index_add_counter = 0
def test():
  global index_add_counter # means: in this scope, use the global name
  print(index_add_counter)

my recipe:

<form>
<input type=hidden name=action value=login><!-- the magic! -->

<input type=text name=email>
<input type=text name=password>

<input type=submit name=action value=login>
<input type=submit name=action value="forgot password">
</form>

It will send the default hidden field if none of the buttons are 'clicked'.

if they are clicked, they have preference and it's value is passed.

You can't move the mouse pointer using javascript, and thus for obvious security reasons. The best way to achieve this effect would be to actually place the control under the mouse pointer.

You can not do it as a member function, because the implicit this parameter is the left hand side of the <<-operator. (Hence, you would need to add it as a member function to the ostream-class. Not good :)

Could you do it as a free function without friending it? That's what I prefer, because it makes it clear that this is an integration with ostream, and not a core functionality of your class.

Use Glib::ustring from glibmm.

It is the only widespread UTF-8 string container (AFAIK). While glyph (not byte) based, it has the same method signatures as std::string so the port should be simple search and replace (just make sure that your data is valid UTF-8 before loading it into a ustring).

Variable scope in Ruby is controlled by sigils to some degree. Variables starting with $ are global, variables with @ are instance variables, @@ means class variables, and names starting with a capital letter are constants. All other variables are locals. When you open a class or method, that's a new scope, and locals available in the previous scope aren't available.

I generally prefer to avoid creating global variables. There are two techniques that generally achieve the same purpose that I consider cleaner:

1. Create a constant in a module. So in this case, you would put all the classes that need the offset in the module Foo and create a constant Offset, so then all the classes could access Foo::Offset.

2. Define a method to access the value. You can define the method globally, but again, I think it's better to encapsulate it in a module or class. This way the data is available where you need it and you can even alter it if you need to, but the structure of your program and the ownership of the data will be clearer. This is more in line with OO design principles.

For Java 1.6 and lower, I believe the safest and cleanest API for this is Guava's Files.move.

Example:

File newFile = new File(oldFile.getParent(), "new-file-name.txt");
Files.move(oldFile.toPath(), newFile.toPath());

The first line makes sure that the location of the new file is the same directory, i.e. the parent directory of the old file.

EDIT: I wrote this before I started using Java 7, which introduced a very similar approach. So if you're using Java 7+, you should see and upvote kr37's answer.

Remove the onchange event from the HTML Markup and bind it in your document ready event

<select  name="a[b]" >
     <option value='Choice 1'>Choice 1</option>
     <option value='Choice 2'>Choice 2</option>
</select>?

and Script

$(function(){    
    $("select[name='a[b]']").change(function(){
       alert($(this).val());        
    }); 
});

Working sample : http://jsfiddle.net/gLaR8/3/

The "Killed" message usually means your process consumed too much memory, so you may simply need to add more memory to your system if possible. At the time of writing this answer, I've had to increase my virtual machine's memory to at least 768MB in order to get composer update to work in some situations.

However, if you're doing this on a live server, you shouldn't be using composer update at all. What you should instead do is:

1. Run composer update in a local environment (such as directly on your physical laptop/desktop, or a docker container/VM running on your laptop/desktop) where memory limitations shouldn't be as severe.
2. Upload or git push the composer.lock file.
3. Run composer install on the live server.

composer install will then read from the .lock file, fetching the exact same versions every time rather than finding the latest versions of every package. This makes your app less likely to break, and composer uses less memory.

Read more here: https://getcomposer.org/doc/01-basic-usage.md#installing-with-composer-lock

Alternatively, you can upload the entire vendor directory to the server, bypassing the need to run composer install at all, but then you should run composer dump-autoload --optimize.

in priciple it's the same idea as @Landeeyos. anyhow, expanding on that response: a bit late to the party but here are my two cents:

scenario:

I have a unique case of adding some (roughly 28 text files) predefined, template files with my WPF application. So, the idea is that everytime this app is to be installed, these template, text files will be readily available for usage. anyhow, what I did was that made a seperate library to hold the files by adding a resource.resx. Then I added all those files to this resource file (if you double click a .resx file, its designer gets opened in visual studio). I had set the Access Modifier to public for all. Also, each file was marked as an embedded resource via the Build Action of each text file (you can get that by looking at its properties). let's call this bibliothek1.dll i referenced this above library (bibliothek1.dll) in another library (call it bibliothek2.dll) and then consumed this second library in mf wpf app.

actual fun:

        // embedded resource file name <i>with out extension</i>(this is vital!) 

        string fileWithoutExt = Path.GetFileNameWithoutExtension(fileName);

        // is required in the next step

        // without specifying the culture
        string wildFile = IamAResourceFile.ResourceManager.GetString(fileWithoutExt);
        Console.Write(wildFile);

        // with culture
        string culturedFile = IamAResourceFile.ResourceManager.GetString(fileWithoutExt, CultureInfo.InvariantCulture);
        Console.Write(culturedFile);

sample: checkout 'testingresourcefilesusage' @ https://github.com/Natsikap/samples.git

I hope it helps someone, some day, somewhere!

MODE_DIALOG and MODE_DROPDOWN are defined in API 11 (Honeycomb). MODE_DIALOG describes the usual behaviour in previous platform versions.

If you are using the updated Microsoft.Web.RedisSessionStateProvider(starting from 3.0.2) you can add this to your web.config to allow concurrent sessions.

<appSettings>
    <add key="aspnet:AllowConcurrentRequestsPerSession" value="true"/>
</appSettings>

Source

Here is another construction which starts with the simplest number format and then, in a non-overlapping way, progressively adds more complex number formats:

Java regep:

(\d)|([1-9]\d+)|(\.\d+)|(\d\.\d*)|([1-9]\d+\.\d*)|([1-9]\d{0,2}(,\d{3})+(\.\d*)?)

As a Java String (note the extra \ needed to escape to \ and . since \ and . have special meaning in a regexp when on their own):

String myregexp="(\\d)|([1-9]\\d+)|(\\.\\d+)|(\\d\\.\\d*)|([1-9]\\d+\\.\\d*)|([1-9]\\d{0,2}(,\\d{3})+(\\.\\d*)?)";   

Explanation:

1. This regexp has the form A|B|C|D|E|F where A,B,C,D,E,F are themselves regexps that do not overlap. Generally, I find it easier to start with the simplest possible matches, A. If A misses matches you want, then create a B that is a minor modification of A and includes a bit more of what you want. Then, based on B, create a C that catches more, etc. I also find it easier to create regexps that don't overlap; it is easier to understand a regexp with 20 simple non-overlapping regexps connected with ORs rather than a few regexps with more complex matching. But, each to their own!

2. A is (\d) and matches exactly one of 0,1,2,3,4,5,6,7,8,9 which can't be simpler!

3. B is ([1-9]\d+) and only matches numbers with 2 or more digits, the first excluding 0 . B matches exactly one of 10,11,12,... B does not overlap A but is a small modification of A.

4. C is (.\d+) and only matches a decimal followed by one or more digits. C matches exactly one of .0 .1 .2 .3 .4 .5 .6 .7 .8 .9 .00 .01 .02 ... . .23000 ... C allows trailing eros on the right which I prefer: if this is measurement data, the number of trailing zeros indicates the level of precision. If you don't want the trailing zeros on the right, change (.\d+) to (.\d*[1-9]) but this also excludes .0 which I think should be allowed. C is also a small modification of A.

5. D is (\d.\d*) which is A plus decimals with trailing zeros on the right. D only matches a single digit, followed by a decimal, followed by zero or more digits. D matches 0. 0.0 0.1 0.2 ....0.01000...9. 9.0 9.1..0.0230000 .... 9.9999999999... If you want to exclude "0." then change D to (\d.\d+). If you want to exclude trailing zeros on the right, change D to (\d.\d*[1-9]) but this excludes 2.0 which I think should be included. D does not overlap A,B,or C.

6. E is ([1-9]\d+.\d*) which is B plus decimals with trailing zeros on the right. If you want to exclude "13.", for example, then change E to ([1-9]\d+.\d+). E does not overlap A,B,C or D. E matches 10. 10.0 10.0100 .... 99.9999999999... Trailing zeros can be handled as in 4. and 5.

7. F is ([1-9]\d{0,2}(,\d{3})+(.\d*)?) and only matches numbers with commas and possibly decimals allowing trailing zeros on the right. The first group ([1-9]\d{0,2}) matches a non-zero digit followed zero, one or two more digits. The second group (,\d{3})+ matches a 4 character group (a comma followed by exactly three digits) and this group can match one or more times (no matches means no commas!). Finally, (.\d*)? matches nothing, or matches . by itself, or matches a decimal . followed by any number of digits, possibly none. Again, to exclude things like "1,111.", change (.\d*) to (.\d+). Trailing zeros can be handled as in 4. or 5. F does not overlap A,B,C,D, or E. I couldn't think of an easier regexp for F.

Let me know if you are interested and I can edit above to handle the trailing zeros on the right as desired.

Here is what matches regexp and what does not:

0
1
02 <- invalid
20
22
003 <- invalid
030 <- invalid
300
033 <- invalid
303
330
333
0004 <- invalid
0040 <- invalid
0400 <- invalid
4000
0044 <- invalid
0404 <- invalid
0440 <- invalid
4004
4040
4400
0444 <- invalid
4044
4404
4440
4444
00005 <- invalid
00050 <- invalid
00500 <- invalid
05000 <- invalid
50000
00055 <- invalid
00505 <- invalid
00550 <- invalid
05050 <- invalid
05500 <- invalid
50500
55000
00555 <- invalid
05055 <- invalid
05505 <- invalid
05550 <- invalid
50550
55050
55500
. <- invalid
.. <- invalid
.0
0.
.1
1.
.00
0.0
00. <- invalid
.02
0.2
02. <- invalid
.20
2.0
20.
.22
2.2
22.
.000
0.00
00.0 <- invalid
000. <- invalid
.003
0.03
00.3 <- invalid
003. <- invalid
.030
0.30
03.0 <- invalid
030. <- invalid
.033
0.33
03.3 <- invalid
033. <- invalid
.303
3.03
30.3
303.
.333
3.33
33.3
333.
.0000
0.000
00.00 <- invalid
000.0 <- invalid
0000. <- invalid
.0004
0.0004
00.04 <- invalid
000.4 <- invalid
0004. <- invalid
.0044
0.044
00.44 <- invalid
004.4 <- invalid
0044. <- invalid
.0404
0.404
04.04 <- invalid
040.4 <- invalid
0404. <- invalid
.0444
0.444
04.44 <- invalid
044.4 <- invalid
0444. <- invalid
.4444
4.444
44.44
444.4
4444.
.00000
0.0000
00.000 <- invalid
000.00 <- invalid
0000.0 <- invalid
00000. <- invalid
.00005
0.0005
00.005 <- invalid
000.05 <- invalid
0000.5 <- invalid
00005. <- invalid
.00055
0.0055
00.055 <- invalid
000.55 <- invalid
0005.5 <- invalid
00055. <- invalid
.00505
0.0505
00.505 <- invalid
005.05 <- invalid
0050.5 <- invalid
00505. <- invalid
.00550
0.0550
00.550 <- invalid
005.50 <- invalid
0055.0 <- invalid
00550. <- invalid
.05050
0.5050
05.050 <- invalid
050.50 <- invalid
0505.0 <- invalid
05050. <- invalid
.05500
0.5500
05.500 <- invalid
055.00 <- invalid
0550.0 <- invalid
05500. <- invalid
.50500
5.0500
50.500
505.00
5050.0
50500.
.55000
5.5000
55.000
550.00
5500.0
55000.
.00555
0.0555
00.555 <- invalid
005.55 <- invalid
0055.5 <- invalid
00555. <- invalid
.05055
0.5055
05.055 <- invalid
050.55 <- invalid
0505.5 <- invalid
05055. <- invalid
.05505
0.5505
05.505 <- invalid
055.05 <- invalid
0550.5 <- invalid
05505. <- invalid
.05550
0.5550
05.550 <- invalid
055.50 <- invalid
0555.0 <- invalid
05550. <- invalid
.50550
5.0550
50.550
505.50
5055.0
50550.
.55050
5.5050
55.050
550.50
5505.0
55050.
.55500
5.5500
55.500
555.00
5550.0
55500.
.05555
0.5555
05.555 <- invalid
055.55 <- invalid
0555.5 <- invalid
05555. <- invalid
.50555
5.0555
50.555
505.55
5055.5
50555.
.55055
5.5055
55.055
550.55
5505.5
55055.
.55505
5.5505
55.505
555.05
5550.5
55505.
.55550
5.5550
55.550
555.50
5555.0
55550.
.55555
5.5555
55.555
555.55
5555.5
55555.
, <- invalid
,, <- invalid
1, <- invalid
,1 <- invalid
22, <- invalid
2,2 <- invalid
,22 <- invalid
2,2, <- invalid
2,2, <- invalid
,22, <- invalid
333, <- invalid
33,3 <- invalid
3,33 <- invalid
,333 <- invalid
3,33, <- invalid
3,3,3 <- invalid
3,,33 <- invalid
,,333 <- invalid
4444, <- invalid
444,4 <- invalid
44,44 <- invalid
4,444
,4444 <- invalid
55555, <- invalid
5555,5 <- invalid
555,55 <- invalid
55,555
5,5555 <- invalid
,55555 <- invalid
666666, <- invalid
66666,6 <- invalid
6666,66 <- invalid
666,666
66,6666 <- invalid
6,66666 <- invalid
66,66,66 <- invalid
6,66,666 <- invalid
,666,666 <- invalid
1,111.
1,111.11
1,111.110
01,111.110 <- invalid
0,111.100 <- invalid
11,11. <- invalid
1,111,.11 <- invalid
1111.1,10 <- invalid
01111.11,0 <- invalid
0111.100, <- invalid
1,111,111.
1,111,111.11
1,111,111.110
01,111,111.110 <- invalid
0,111,111.100 <- invalid
1,111,111.
1,1111,11.11 <- invalid
11,111,11.110 <- invalid
01,11,1111.110 <- invalid
0,111111.100 <- invalid
0002,22.2230 <- invalid
.,5.,., <- invalid
2.0,345,345 <- invalid
2.334.456 <- invalid

In bash, you can do pattern replacement in a string with the ${VARIABLE//PATTERN/REPLACEMENT} construct. Use just / and not // to replace only the first occurrence. The pattern is a wildcard pattern, like file globs.

string='foo bar qux'
one="${string/ /.}"     # sets one to 'foo.bar qux'
all="${string// /.}"    # sets all to 'foo.bar.qux'

:active       Adds a style to an element that is activated
:focus        Adds a style to an element that has keyboard input focus
:hover        Adds a style to an element when you mouse over it
:lang         Adds a style to an element with a specific lang attribute
:link         Adds a style to an unvisited link
:visited      Adds a style to a visited link

Source: CSS Pseudo-classes

In case you want to have a separator in the name between levels, this function works well.

def flattenHierarchicalCol(col,sep = '_'):
    if not type(col) is tuple:
        return col
    else:
        new_col = ''
        for leveli,level in enumerate(col):
            if not level == '':
                if not leveli == 0:
                    new_col += sep
                new_col += level
        return new_col

df.columns = df.columns.map(flattenHierarchicalCol)

ExecuteScalar() is what you need here

To search for multiple matches in each file, we can sequence several Select-String calls:

Get-ChildItem C:\Logs |
  where { $_ | Select-String -Pattern 'VendorEnquiry' } |
  where { $_ | Select-String -Pattern 'Failed' } |
  ...

At each step, files that do not contain the current pattern will be filtered out, ensuring that the final list of files contains all of the search terms.

Rather than writing out each Select-String call manually, we can simplify this with a filter to match multiple patterns:

filter MultiSelect-String( [string[]]$Patterns ) {
  # Check the current item against all patterns.
  foreach( $Pattern in $Patterns ) {
    # If one of the patterns does not match, skip the item.
    $matched = @($_ | Select-String -Pattern $Pattern)
    if( -not $matched ) {
      return
    }
  }

  # If all patterns matched, pass the item through.
  $_
}

Get-ChildItem C:\Logs | MultiSelect-String 'VendorEnquiry','Failed',...

Now, to satisfy the "Logtime about 11:30 am" part of the example would require finding the log time corresponding to each failure entry. How to do this is highly dependent on the actual structure of the files, but testing for "about" is relatively simple:

function AboutTime( [DateTime]$time, [DateTime]$target, [TimeSpan]$epsilon ) {
  $time -le ($target + $epsilon) -and $time -ge ($target - $epsilon)
}

PS> $epsilon = [TimeSpan]::FromMinutes(5)
PS> $target = [DateTime]'11:30am'
PS> AboutTime '11:00am' $target $epsilon
False
PS> AboutTime '11:28am' $target $epsilon
True
PS> AboutTime '11:35am' $target $epsilon
True

LOL, I was doing all the steps here - I ended up doing the unpairing/repairing steps from the "given by Surjeet" answer. It didn't work, and then I noticed that when I clicked the "connect via network" button, the same yellow box would pop up that pops up when you repair, saying "busy" - I got frustrated and just started hammering the "connect via network" button, clicking it quickly for probably like 15 - 20 clicks - it started spazzing out, but eventually landed on being able to connect to the network. Before that worked, I also shut my wifi off and turned it on again, as suggested by one of these answers, but clicking the "connect via network" button really fast did the trick...LOL

Also, before I hammered the button, I linked the device support folders, although I'm not sure if it did anything:

open the terminal

cd /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport

ln -s 13.3 13.4

ls -l 13.4

restart Xcode and retry run on device

Said to do it here - https://forums.developer.apple.com/thread/126940 - I edited the folder version in my comment to adjust to the latest version of iOS 13.4.

EDIT I believe I figured out what my problem was, I had to stop my Little Snitch network filter. Also, after I was able to connect by hammering the button, the "connect via IP address" option appeared in the dropdown when you right click on the device in the devices manager in xcode, it wasn't there before I was able to connect ultra-hacky style the first time. If I connect, and then turn my network filter on, it disconnects my phone.

• Height is easily implemented by recursion, take the maximum of the height of the subtrees plus one.

• The "balance factor of R" refers to the right subtree of the tree which is out of balance, I suppose.

I ran into this situation and creating an extra div was impractical. I ended up just setting the full-height div to height: 10000%; overflow: hidden;

Clearly not the cleanest solution, but it works really fast.

Commonly when updating a column, we want to map an old value to a new value. Here's a way to do that in pyspark without UDF's:

# update df[update_col], mapping old_value --> new_value
from pyspark.sql import functions as F
df = df.withColumn(update_col,
    F.when(df[update_col]==old_value,new_value).
    otherwise(df[update_col])).

You can also use nuget: https://www.nuget.org/packages/System.Management.Automation/ It is maybe a better option.

Try withColumn with the function when as follows:

val sqlContext = new SQLContext(sc)
import sqlContext.implicits._ // for `toDF` and $""
import org.apache.spark.sql.functions._ // for `when`

val df = sc.parallelize(Seq((4, "blah", 2), (2, "", 3), (56, "foo", 3), (100, null, 5)))
    .toDF("A", "B", "C")

val newDf = df.withColumn("D", when($"B".isNull or $"B" === "", 0).otherwise(1))

newDf.show() shows

+---+----+---+---+
|  A|   B|  C|  D|
+---+----+---+---+
|  4|blah|  2|  1|
|  2|    |  3|  0|
| 56| foo|  3|  1|
|100|null|  5|  0|
+---+----+---+---+

I added the (100, null, 5) row for testing the isNull case.

I tried this code with Spark 1.6.0 but as commented in the code of when, it works on the versions after 1.4.0.

You need to access the matches in order to get at the SDI number. Here is a function that will do it (assuming there is only 1 SDI number per cell).

For the regex, I used "sdi followed by a space and one or more numbers". You had "sdi followed by a space and zero or more numbers". You can simply change the + to * in my pattern to go back to what you had.

Function ExtractSDI(ByVal text As String) As String

Dim result As String
Dim allMatches As Object
Dim RE As Object
Set RE = CreateObject("vbscript.regexp")

RE.pattern = "(sdi \d+)"
RE.Global = True
RE.IgnoreCase = True
Set allMatches = RE.Execute(text)

If allMatches.count <> 0 Then
    result = allMatches.Item(0).submatches.Item(0)
End If

ExtractSDI = result

End Function

If a cell may have more than one SDI number you want to extract, here is my RegexExtract function. You can pass in a third paramter to seperate each match (like comma-seperate them), and you manually enter the pattern in the actual function call:

Ex) =RegexExtract(A1, "(sdi \d+)", ", ")

Here is:

Function RegexExtract(ByVal text As String, _
                      ByVal extract_what As String, _
                      Optional seperator As String = "") As String

Dim i As Long, j As Long
Dim result As String
Dim allMatches As Object
Dim RE As Object
Set RE = CreateObject("vbscript.regexp")

RE.pattern = extract_what
RE.Global = True
Set allMatches = RE.Execute(text)

For i = 0 To allMatches.count - 1
    For j = 0 To allMatches.Item(i).submatches.count - 1
        result = result & seperator & allMatches.Item(i).submatches.Item(j)
    Next
Next

If Len(result) <> 0 Then
    result = Right(result, Len(result) - Len(seperator))
End If

RegexExtract = result

End Function

*Please note that I have taken "RE.IgnoreCase = True" out of my RegexExtract, but you could add it back in, or even add it as an optional 4th parameter if you like.

UNNEST function with arrays can be used along with multirow VALUES syntax. I'm think that this method is slower than using COPY but it is useful to me in work with psycopg and python (python list passed to cursor.execute becomes pg ARRAY):

INSERT INTO tablename (fieldname1, fieldname2, fieldname3)
VALUES (
    UNNEST(ARRAY[1, 2, 3]), 
    UNNEST(ARRAY[100, 200, 300]), 
    UNNEST(ARRAY['a', 'b', 'c'])
);

without VALUES using subselect with additional existance check:

INSERT INTO tablename (fieldname1, fieldname2, fieldname3)
SELECT * FROM (
    SELECT UNNEST(ARRAY[1, 2, 3]), 
           UNNEST(ARRAY[100, 200, 300]), 
           UNNEST(ARRAY['a', 'b', 'c'])
) AS temptable
WHERE NOT EXISTS (
    SELECT 1 FROM tablename tt
    WHERE tt.fieldname1=temptable.fieldname1
);

the same syntax to bulk updates:

UPDATE tablename
SET fieldname1=temptable.data
FROM (
    SELECT UNNEST(ARRAY[1,2]) AS id,
           UNNEST(ARRAY['a', 'b']) AS data
) AS temptable
WHERE tablename.id=temptable.id;

should use get_home_url(), then your links are absolute, but it does not affect if you change the site url

It's three completely different things:

public means that the method is visible and can be called from other objects of other types. Other alternatives are private, protected, package and package-private. See here for more details.

static means that the method is associated with the class, not a specific instance (object) of that class. This means that you can call a static method without creating an object of the class.

void means that the method has no return value. If the method returned an int you would write int instead of void.

The combination of all three of these is most commonly seen on the main method which most tutorials will include.

There's no built-in command for that because it's illegal. You can't modify the size of an array once declared.

What you're looking for is either std::vector to simulate a dynamic array, or better yet a std::string.

std::string first ("The dog jumps ");
std::string second ("over the log");
std::cout << first + second << std::endl;

An alternative way to do it is:

var div = document.getElementById('myDiv');
while(div.firstChild)
    div.removeChild(div.firstChild);

However, using document.getElementById('myDiv').innerHTML = ""; is faster.

See: Benchmark test

N.B.

Both methods preserve the div.

var test = {'red':'#FF0000', 'blue':'#0000FF'};_x000D_
delete test.blue; // or use => delete test['blue'];_x000D_
console.log(test);

this deletes test.blue

You can stablish specific toolbar for div

div::-webkit-scrollbar {
width: 12px;
}

div::-webkit-scrollbar-track {
-webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3);
border-radius: 10px;
}

see demo in jsfiddle.net

This is the initial database of the data source when you connect.

Edited for clarity:

If you have multiple databases in your SQL Server instance and you don't want to use the default database, you need some way to specify which one you are going to use.

Here is a short example that should do the trick with regular expressions:

import re

rep = {"condition1": "", "condition2": "text"} # define desired replacements here

# use these three lines to do the replacement
rep = dict((re.escape(k), v) for k, v in rep.iteritems()) 
#Python 3 renamed dict.iteritems to dict.items so use rep.items() for latest versions
pattern = re.compile("|".join(rep.keys()))
text = pattern.sub(lambda m: rep[re.escape(m.group(0))], text)

For example:

>>> pattern.sub(lambda m: rep[re.escape(m.group(0))], "(condition1) and --condition2--")
'() and --text--'

If there are no typos in the question, you got the conditions wrong:

You said this:

IF cells (i,"A") contains the text 'Miami'

...but your code says:

If Cells(i, "A") <> "Miami"

--> <> means that the value of the cell is not equal to "Miami", so you're not checking what you think you are checking.

I guess you want this instead:

If Cells(i, "A") like "*Miami*"

EDIT:

Sorry, but I can't really help you more. As I already said in a comment, I'm no Excel VBA expert.
Normally I would open Excel now and try your code myself, but I don't even have Excel on any of my machines at home (I use OpenOffice).

Just one general thing: can you identify the row that does not work?
Maybe this helps someone else to answer the question.

Does it ever execute (or at least try to execute) the Cells(i, "C").Value = "BA" line?
Or is the If Cells(i, "A") like "*Miami*" stuff already False?
If yes, try checking just one cell and see if that works.

If you're using rails you can also use in_groups_of:

foo.in_groups_of(3)

git stash list to list your stashed changes.

git stash show to see what n is in the below commands.

git stash apply to apply the most recent stash.

git stash apply stash@{n} to apply an older stash.

https://git-scm.com/book/en/v2/Git-Tools-Stashing-and-Cleaning

You can run the following query

 select sys_guid() from dual
 union all
 select sys_guid() from dual
 union all 
 select sys_guid() from dual

I wrapped around $state around $timeout and it worked for me.

For example,

(function() {
  'use strict';

  angular
    .module('app')
    .controller('BodyController', BodyController);

  BodyController.$inject = ['$state', '$timeout'];

  /* @ngInject */
  function BodyController($state, $timeout) {
    $timeout(function(){
      console.log($state.current);
    });

  }
})();

my datagridview is editonEnter mode . so it refresh only after i leave cell or after i revisit and exit cell twice.

to trigger this iimedately . i unfocus from datagridview . then refocus it.

 this.SelectNextControl(dgv1,true,true,false,true);    
 Application.DoEvents();    //this does magic
 dgv1.Focus();

<TextView
    android:id="@+id/txt_banner"
    android:layout_width="match_parent"
    android:layout_height="45dp"
    android:layout_below="@+id/title"
    android:background="@drawable/ripple_effect"
    android:gravity="center|left"
    android:paddingLeft="15dp"
    android:text="@string/banner"
    android:textSize="15sp" />

Add this into drawable

<?xml version="1.0" encoding="utf-8"?>

<!--this ripple animation only working for >= android version 21 -->

<ripple
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:color="@color/click_efect" />

If you need to treat empty columns as NULLs, try this:

SELECT CAST(nullif(<column>, '') AS integer);

On the other hand, if you do have NULL values that you need to avoid, try:

SELECT CAST(coalesce(<column>, '0') AS integer);

I do agree, error message would help a lot.

Firstly Strings are immutable in java, you have to assign the result of the replace to a variable.

fieldName = fieldName.replace("watever","");

You can use also use regex as an option using String#replaceAll(regex, str);

fieldName = fieldName.replaceAll(",$","");

Here is my answer -

files=(xorg-x11-fonts*)

if [ -e "${files[0]}" ];
then
    printf "BLAH"
fi

This warning comes when you don't add a key to your list items.As per react js Docs -

Keys help React identify which items have changed, are added, or are removed. Keys should be given to the elements inside the array to give the elements a stable identity:

const numbers = [1, 2, 3, 4, 5];
const listItems = numbers.map((number) =>
  <li key={number.toString()}>
    {number}
  </li>
);

The best way to pick a key is to use a string that uniquely identifies a list item among its siblings. Most often you would use IDs from your data as keys:

const todoItems = todos.map((todo) =>
  <li key={todo.id}>
    {todo.text}
  </li>
);

When you don’t have stable IDs for rendered items, you may use the item index as a key as a last resort

const todoItems = todos.map((todo, index) =>
  // Only do this if items have no stable IDs
  <li key={index}>
    {todo.text}
  </li>
);

For me, I had to remove the intellij internal sdk and started to use my local sdk. When I started to use the internal, the error was gone.

I don't think it's in the INFORMATION_SCHEMA - you'll probably have to use sysobjects or related deprecated tables/views.

You would think there would be a type for this in INFORMATION_SCHEMA.TABLE_CONSTRAINTS, but I don't see one.

I have the following in my .bash_profile:

function mark {
    export $1=`pwd`;
}

so anytime I want to remember a directory, I can just type, e.g. mark there .

Then when I want to go back to that location, I just type cd $there

Adding line height helps too.

text-align: center;
line-height: 18px; /* for example. */

list all containers with info and ID

docker ps

docker stop CONTAINER ID

Make it like this:

$scope.users.data.length;

When Command Extensions are enabled (Windows XP and newer, roughly), you can use the syntax %~nF (where F is the variable and ~n is the request for its name) to only get the filename.

FOR /R C:\Directory %F in (*.*) do echo %~nF

should echo only the filenames.

Got the same question from a friend. My suggestion which does not require !Important looks like this: I add a custom class "no-border" which can be added to the bootstrap table.

.table.no-border tr td, .table.no-border tr th {
  border-width: 0;
}

You can see my go at a solution here

Try this :

@import "lib.css";

From the Official Documentation :

You can import both css and less files. Only less files import statements are processed, css file import statements are kept as they are. If you want to import a CSS file, and don’t want LESS to process it, just use the .css extension:

Source : http://lesscss.org/

Convert both completed and total to double or at least cast them to double when doing the devision. I.e. cast the varaibles to double not just the result.

Fair warning, there is a floating point precision problem when working with float and double.

on Ubuntu Bionic (18.04), six is already install for python2 and python3 but I have the error launching Wammu. @3ygun solution worked for me to solve

ImportError: No module named six

when launching Wammu

If it's occurred for python3 program, six come with

pip3 install six

and if you don't have pip3:

apt install python3-pip

with sudo under Ubuntu!

Using the query log doesnt give you the actual RAW query being executed, especially if there are bound values. This is the best approach to get the raw sql:

DB::table('tablename')->toSql();

or more involved:

$query = Article::whereIn('author_id', [1,2,3])->orderBy('published', 'desc')->toSql();
dd($query);

It can also be as simple as this.

@media (orientation: landscape) {

}

It means port 80 is already used by another one.

Simply follow these steps:

1. Open windows -> click on Run (win + R) -> type services.msc
2. Goto IIS Admin -> Right click on it and click on Stop Option.
3. Open XAMPP click on Start Action of Apache Module, Apache Module is run.

OR

For find the port of Apache (80) in Command Prompt simply type netstat -aon it displays present used ports on windows, under Local Address column it shown as 0.0.0.0:80. If it displays this port another connection is already used this port number.

Active Connections in Windows XP:

I solved my problem after installing xampp-win32-1.6.5-installer previously I used xampp version xampp-win32-1.8.2-0-VC9-installer at that time I got this error. Now it resolved my problem.

Empty strings and nulls are fundamentally different. A null is an absence of a value and an empty string is a value that is empty.

The programming language making assumptions about the "value" of a variable, in this case an empty string, will be as good as initiazing the string with any other value that will not cause a null reference problem.

Also, if you pass the handle to that string variable to other parts of the application, then that code will have no ways of validating whether you have intentionally passed a blank value or you have forgotten to populate the value of that variable.

Another occasion where this would be a problem is when the string is a return value from some function. Since string is a reference type and can technically have a value as null and empty both, therefore the function can also technically return a null or empty (there is nothing to stop it from doing so). Now, since there are 2 notions of the "absence of a value", i.e an empty string and a null, all the code that consumes this function will have to do 2 checks. One for empty and the other for null.

In short, its always good to have only 1 representation for a single state. For a broader discussion on empty and nulls, see the links below.

https://softwareengineering.stackexchange.com/questions/32578/sql-empty-string-vs-null-value

NULL vs Empty when dealing with user input

mythreads = threading.enumerate()

Enumerate returns a list of all Thread objects still alive. https://docs.python.org/3.6/library/threading.html

If you're in netbeans you can right click in the test method and click "Run Focused Test Method".

To change color of selected ViewCell, there is a simple process without using custom renderer. Make Tapped event of your ViewCell as below

<ListView.ItemTemplate>
    <DataTemplate>
        <ViewCell Tapped="ViewCell_Tapped">            
        <Label Text="{Binding StudentName}" TextColor="Black" />
        </ViewCell>
    </DataTemplate>
</ListView.ItemTemplate>

In your ContentPage or .cs file, implement the event

private void ViewCell_Tapped(object sender, System.EventArgs e)
{
    if(lastCell!=null)
    lastCell.View.BackgroundColor = Color.Transparent;
    var viewCell = (ViewCell)sender;
    if (viewCell.View != null)
    {
        viewCell.View.BackgroundColor = Color.Red;
        lastCell = viewCell;
    }
} 

Declare lastCell at the top of your ContentPage like this ViewCell lastCell;

As mentioned previously, this is a problem with multidex: you should add implementation to your build.gradle and MainApplication.java. But what you add really depends on whether you support AndroidX or not. Here is what you need to solve this problem:

1. If you support AndroidX

Put these lines of code into your build.gradle (android/app/build.gradle):

defaultConfig {
  applicationId "com.your.application"
  versionCode 1
  versionName "1.0"
  ...
  multiDexEnabled true // <-- THIS LINE
}
...
...
dependencies {
  ...
  implementation "androidx.multidex:multidex:2.0.1" // <-- THIS LINE
  ...
}

Put these lines into your MainApplication.java (android/app/src/main/java/.../MainApplication.java):

package com.your.package;

import androidx.multidex.MultiDexApplication; // <-- THIS LINE
...
...
public class MainApplication extends MultiDexApplication { ... } // <-- THIS LINE

2. If you don't support AndroidX

Put these lines of code into your build.gradle (android/app/build.gradle):

defaultConfig {
  applicationId "com.your.application"
  versionCode 1
  versionName "1.0"
  ...
  multiDexEnabled true // <-- THIS LINE
}
...
...
dependencies {
  ...
  implementation "com.android.support:multidex:1.0.3" // <-- THIS LINE
  ...
}

Put these lines into your MainApplication.java (android/app/src/main/java/.../MainApplication.java):

package com.your.package;

import android.support.multidex.MultiDex;; // <-- THIS LINE
...
...
public class MainApplication extends MultiDexApplication { ... } // <-- THIS LINE

According to new Gradle based build system. We have to put assets under main folder.

Or simply right click on your project and create it like

File > New > folder > assets Folder

We can simply write the array data to the filesystem but this will raise one error in which ',' will be appended to the end of the file. To handle this below code can be used:

var fs = require('fs');

var file = fs.createWriteStream('hello.txt');
file.on('error', function(err) { Console.log(err) });
data.forEach(value => file.write(`${value}\r\n`));
file.end();

\r\n

is used for the new Line.

\n

won't help. Please refer this

You can maintain your html as it is but use this php code

<?php
    $name = $_POST['name'];
    $purchase1 = $_POST['Tea'];
    $purchase2 =$_POST['Coffee'];
?>

That entire block is misplaced.

class Example(object):
    def main(self):     
        print "Hello World!"

if __name__ == '__main__':
    Example().main()

But you really shouldn't be using a class just to run your main code.

This helper method should come in handy for someone. Example: int actionBarSize = getThemeAttributeDimensionSize(this, android.R.attr.actionBarSize);

public static int getThemeAttributeDimensionSize(Context context, int attr)
{
    TypedArray a = null;
    try{
        a = context.getTheme().obtainStyledAttributes(new int[] { attr });
        return a.getDimensionPixelSize(0, 0);
    }finally{
        if(a != null){
            a.recycle();
        }
    }
}

You should try this, This technique is OS Independent.

In side your application there is a folder called tmp, inside that there is an another folder called pids. That file contains the server pid file. Simply delete that file. port automatically kill itself.

I think this is the easy way.

Use tweet web intent, this is the simple link:

https://twitter.com/intent/tweet?url=<?=urlencode($url)?>

more variables at https://dev.twitter.com/web/tweet-button/web-intent

From Jimmy Bogard: CreateMap<Foo, Bar>().ForMember(x => x.Blarg, opt => opt.Ignore());

It's in one of the comments at his blog.

As already said, your socket probably enter in TIME_WAIT state. This issue is well described by Thomas A. Fine here.

To summary, socket closing process follow diagram below:

Thomas says:

Looking at the diagram above, it is clear that TIME_WAIT can be avoided if the remote end initiates the closure. So the server can avoid problems by letting the client close first. The application protocol must be designed so that the client knows when to close. The server can safely close in response to an EOF from the client, however it will also need to set a timeout when it is expecting an EOF in case the client has left the network ungracefully. In many cases simply waiting a few seconds before the server closes will be adequate.

Using SO_REUSEADDR is commonly suggested on internet, but Thomas add:

Oddly, using SO_REUSEADDR can actually lead to more difficult "address already in use" errors. SO_REUSADDR permits you to use a port that is stuck in TIME_WAIT, but you still can not use that port to establish a connection to the last place it connected to. What? Suppose I pick local port 1010, and connect to foobar.com port 300, and then close locally, leaving that port in TIME_WAIT. I can reuse local port 1010 right away to connect to anywhere except for foobar.com port 300.

In Linux(Centos 6 or higher) ports from 0 to 1024 are reserved for system use. you can force the system to bind to address any port lower than 1024 if you use root or privileged user.

I installed Apache-2.4 from source with non-root user and I solved this problem by allowing port higher than 1024(ex:8080) and modified http.conf file. chang Listen 80 to Listen 8080

Destructors provide an implicit way of freeing unmanaged resources encapsulated in your class, they get called when the GC gets around to it and they implicitly call the Finalize method of the base class. If you're using a lot of unmanaged resources it is better to provide an explicit way of freeing those resources via the IDisposable interface. See the C# programming guide: http://msdn.microsoft.com/en-us/library/66x5fx1b.aspx

On Visual Studio Community 7.5.3 on Mac this works for me:

Ctrl + Space