в 09:19, 26 мая 2010

2010-05-26T09:19:12Z

Admin: 1 версия

2010-05-26T08:14:39Z

1 версия

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==A comparison between an XML instance and an XMLList with only one XML instance is treated as a direct comparison between the two XML instances==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var msg1:XML = <GREETING>
<TO>A</TO>
<FROM>Programmer</FROM>
<MESSAGE>Hello</MESSAGE>
</GREETING>;

var msg2:XML = <GREETING>
<TO>A</TO>
<FROM>Programmer</FROM>
<MESSAGE>Hello</MESSAGE>
</GREETING>;

trace(msg1.FROM == msg2.*[1]); //

}
}
}
</source>

==An element is equal to an XML attribute if the element contains no child and the text contained by the element matches the attribute value.==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var product:XML = <PRODUCT QUANTITY="1"><COST>1</COST></PRODUCT>;
trace(product.@QUANTITY == product.COST); // Displays: true

}
}
}
</source>

==An element is equal to an XML instance representing a text node if the element contains no child elements, and the text it contains matches the text node"s value.==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var product:XML = <PRODUCT>
<COST>1</COST>
<QUANTITY>1</QUANTITY>
</PRODUCT>;
trace(product.COST.*[0] == product.QUANTITY); // Displays: true
}
}
}
</source>

==By default, E4X ignores whitespace nodes when comparing XML for Equality==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var x1:XML = <a></a>;
var x2:XML = <a>

</a>;
trace(x1 == x2); // Still displays: true

}
}
}
</source>

==Compare two xml variable==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var msg1:XML = <GREETING>
<TO>A</TO>
<FROM>Programmer</FROM>
<MESSAGE>Hello</MESSAGE>
</GREETING>;

var msg2:XML = <GREETING>
<TO>A</TO>
<FROM>Programmer</FROM>
<MESSAGE>Hello</MESSAGE>
</GREETING>;

trace(msg1.* == msg2.*); // Displays: true

}
}
}
</source>

==To not to ignore whitespace nodes prior to parsing==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){

XML.ignoreWhitespace = false; // Don"t ignore whitespace nodes
var x1:XML = <a></a>;
var x2:XML = <a>

</a>;
trace(x1 == x2); // Now displays: false

}
}
}
</source>

==XML Equality==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var x1:XML = <a></a>;
var x2:XML = <a></a>;
trace(x1 == x2); // Displays: true

}
}
}
</source>

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Flash / Flex / ActionScript/XML/Equality - История изменений

в 09:19, 26 мая 2010

Admin: 1 версия