var a:uint, b:uint = 0;
loopA:for(a = 0; a < 10; a++)
    loopB:while(b++ < 100)
        loopC:for each(var c:uint in [0,1,2,3])
            break loopB;

trace(a, b, c); // traces "10 10 0"

Where to go from here

• Nocreativity.com
• See it in action on wonderfl.net

Performance testing on loops (read more).

method............................................................. ms
for (var i:uint=0; i<length; i++)                                   40
for (var i:uint=length; i>0; i--)                                   40
var i:uint = 0; while (i < length) i++;                             40
var i:uint = length; while (--i)                                    52
var i:uint = 0; do {} while (++i < length);                         68
var i:uint = length-1; do {} while (i--);                           68
for (var b:* in arr)                                               224
for each (var b:Boolean in arr)                                    216
for each (var b:* in arr)                                          200
for each (var b:* in arr) var c:Boolean = b as Boolean;            686
arr.forEach(arrForEachF)                                          1446

Performance testing on operations with Number, int, uint. (read more)

Assignment (a:TYPE = 0) ......... min - max (ms)
int:                               24 -  45
Number:                            24 -  36
uint:                              25 -  37

Assignment (a:TYPE = 0.5) ....... min - max (ms)
int:                               56 -  83
Number:                            26 -  43
uint:                              57 -  92

Division (a:TYPE = i/2) ......... min - max (ms)
int:                               60 - 105
Number:                            34 -  64
uint:                             184 - 278

Multiplication (a:TYPE = i*2) ... min - max (ms)
int:                               78 - 129
Number:                            39 -  64
uint:                             207 - 280

Addition (a:TYPE = i+2) ......... min - max (ms)
int:                               31 -  49
Number:                            44 -  55
uint:                              85 - 113

Bitshift (a:TYPE = i<<1) ........ min - max (ms)
int:                               31 -  63
Number:                            61 - 114
uint:                              71 - 130