Comparing strings

Flash Player 9 and later, Adobe AIR 1.0 and later

You can use the following operators to compare strings: <, <=, !=, ==, =>, and >. These operators can be used with conditional statements, such as if and while, as the following example shows:

var str1:String = "Apple"; 
var str2:String = "apple"; 
if (str1 < str2) 
{ 
    trace("A < a, B < b, C < c, ..."); 
}

When using these operators with strings, ActionScript considers the character code value of each character in the string, comparing characters from left to right, as in the following:

trace("A" < "B"); // true 
trace("A" < "a"); // true  
trace("Ab" < "az"); // true  
trace("abc" < "abza"); // true

Use the == and != operators to compare strings with each other and to compare strings with other types of objects, as the following example shows:

var str1:String = "1"; 
var str1b:String = "1"; 
var str2:String = "2"; 
trace(str1 == str1b); // true 
trace(str1 == str2); // false 
var total:uint = 1; 
trace(str1 == total); // true