JavaScript length

JavaScript length

判斷Array長度
語法  array.length=number

var AAA=[]


if ( (AAA).length > 0)  -> O
if ( length(AAA) > 0 )  -> X
if ( (AAA).length() > 0)  -> X

var fruits = ["Banana", "Orange", "Apple", "Mango"]
fruits.length  ->  return 4


參考w3schools : More JavaScript Array length
http://www.w3schools.com/jsref/jsref_length_array.asp