== (equality)

Flash Player 5.

expression1 == expression2

expression1,expression2 A number, string, Boolean value, variable, object, array, or function.

A Boolean value.

Operator (equality); tests two expressions for equality. The result is true if the expressions are equal.

The definition of equal depends on the data type of the parameter:

Numbers and Boolean values are compared by value, and are considered equal if they have the same value.
String expressions are equal if they have the same number of characters and the characters are identical.
Variables, objects, arrays, and functions are compared by reference. Two variables are equal if they refer to the same object, array, or function. Two separate arrays are never considered equal, even if they have the same number of elements.

Usage 1: The following example uses the == operator with an if statement:

a = "David" , b = "David";
if (a == b){
  trace("David is David");
}

Usage 2: These examples show the results of operations that compare mixed types.

x = "5"; y = "5";
trace(x == y);
// true

x = "5"; y = "66";
trace(x ==y);
// false

x = "chris"; y = "steve";
trace (x == y);
//false