ActionScript for Flash MX: The Definitive Guide, Second Edition

Object.valueOf() Method

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// Make the Ball constructor

function Ball (radius, color, xPosition, yPosition) {

this.radius = radius;

this.color = color;

this.xPosition = xPosition;

this.yPosition = yPosition;

}

// Add a custom toString() method

Ball.prototype.toString = function () {

return "A ball with the radius " + this.radius;

};

// Create a new Ball object

myBall = new Ball(6, 0x00FF00, 145, 200);

// Now check myBall's string value

trace(myBall); // Displays: "A ball with the radius 6"

See Also

Array.toString(), Date.toString(), Number.toString(), Object.valueOf()

Object.unwatch() Method

remove an existing watchpoint

Flash 6

someObject.unwatch(prop)

Arguments

prop A string indicating the name of the property that should no longer be

watched. The name must adhere to the rules for creating an identifier

outlined under “Identifiers” in Chapter 15.

Returns

A Boolean indicating whether prop was previously being watched; true if prop exists and

was previously being watched;

false otherwise.

Description

The unwatch() method removes a watchpoint previously set on prop via the Object.watch()

method. Once the watchpoint is removed, value assignments to

prop will no longer be

moderated by the watch() callback function. Note that a watchpoint can be removed only

via Object.unwatch( ...