FormatMessage - API-referens för Adobe ActionScript® 3 (AS3 ADEP Client Component)

Paket	com.adobe.gravity.utility.message
Klass	public class FormatMessage
Arv	FormatMessage Object

Språkversion:

ActionScript 3.0

Produktversion:

Adobe Digital Enterprise Platform Experience Services - Client Component Framework 10

Körningsmiljöversioner:

AIR 1.1, Flash Player 9

FormatMessage is a utility class for formatting messages requiring runtime parameters. Parameters substitution locations are indicated by the parameter name surrounded by braces. For example, a parameterized error message might be

Error {errorId}: The file {filename} could not be read.

When the error occurs, the message could be prepared for display with the following code:

     var template:String = "Error {errorId}:  The file {filename} could not be read.";
     var params:Object = new Object();
     params.errorId = 42;
     params.filename = "/Users/alice/vacation.jpg";
     var message:String = FormatMessage.formatString(template, params);
     // message="Error 42:  The file /Users/alice/vacation.jpg could not be read."

The ActionScript object literal syntax is a convenient way to construct the parameter object. The following is functionally equivalent to the code above:

     var template:String = "Error {errorId}:  The file {filename} could not be read.";
     var params:Object =
             {
                 errorId:  42,
                 filename: "/Users/alice/vacation.jpg"
             };
     var message:String = FormatMessage.formatString(template, params);
     // message="Error 42:  The file /Users/alice/vacation.jpg could not be read."

Note that traditional numeric parameters are supported by simply using an Array as the parameter object:

     var template:String = "Error {0}:  The file {1} could not be read.";
     var params:Array =
             [
                 42,
                 "/Users/alice/vacation.jpg"
             ];
     var message:String = FormatMessage.formatString(template, params);
     // message="Error 42:  The file /Users/alice/vacation.jpg could not be read."

Note that for missing parameters, the empty string will be used:

     var template:String = "Error {errorId}:  The file {filename} could not be read.";
     var params:Object =
             {
                 errorId:  42,
             };
     var message:String = FormatMessage.formatString(template, params);
     // message="Error 42:  The file  could not be read."

Note that parameters are substituted verbatim, no parameter replacement or brace processing is performed on the parameters themselves:

     var template:String = "{one}{two}{three}{four}{five}";
     var params:Object =
             {
                 one: "{five}",
                 two: "{four}",
                 three: "{three}",
                 four: "{two}",
                 five: "{one}"
             };
     var message:String = FormatMessage.formatString(template, params);
     // message="{five}{four}{three}{two}{one}"

To escape an opening brace, double the initial brace:

     var template:String = "The {{filename} parameter is {filename}.";
     var message:String = FormatMessage.formatString(template, {filename: "/Users/alice/vacation.jpg"});
     // message="The {filename} parameter is /Users/alice/vacation.jpg."

Best practice: It can be useful to use formatString on all strings, parameterized or not, to ensure that escaping rules are consistent between parameterized and non-parameterized strings (since strings that were unparameterized may become parameterized and vice-versa).

Publika egenskaper

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	Egenskap		Definieras med
		constructor : Object En referens till klassobjektet eller konstruktorfunktionen för en given objektinstans.	Object

Publika metoder

Dölj ärvda publika metoder

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	Metod		Definieras med
		formatString(message:String, parameters:Object):String [statisk] Given a message string, perform parameter substitution on it.	FormatMessage
		hasOwnProperty(name:String):Boolean Anger om det finns en egenskap angiven för ett objekt.	Object
		isPrototypeOf(theClass:Object):Boolean Anger om en instans av klassen Object finns i prototypkedjan för objektet som anges som parameter.	Object
		propertyIsEnumerable(name:String):Boolean Anger om den angivna egenskapen finns och är uppräkningsbar.	Object
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Anger tillgänglighet för en dynamisk egenskap för slingåtgärder.	Object
		toLocaleString():String Returnerar det här objektets strängrepresentation, formaterad i enlighet med språkspecifika konventioner.	Object
		toString():String Returnerar det angivna objektets strängbeteckning.	Object
		valueOf():Object Returnerar det angivna objektets primitiva värde.	Object

Metoddetaljer

formatString

()

metod

public static function formatString(message:String, parameters:Object):String

Språkversion:

ActionScript 3.0

Produktversion:

Adobe Digital Enterprise Platform Experience Services - Client Component Framework 10

Körningsmiljöversioner:

AIR 1.1, Flash Player 9

Given a message string, perform parameter substitution on it.

Parametrar

	`message:String` — The parameterized message string. Must not be null.

	`parameters:Object` — An object with a property for each parameter that is to be substituted into the message. May be null (which means there are no parameters to be substituted).

Returnerar

String — The message string with any parameter substitution performed.

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FormatMessage - AS3 ADEP Client Component

Klasser x

formatString