actionscript-3 - ActionScript 3 : Check an array for a match

Question

如果您有一个包含六个数字的数组，请说:

public var check:Array = new Array[10,12,5,11,9,4];

或者

public var check:Array = new Array[10,10,5,11,9,4];

你如何检查匹配(一对？)

Answer 1

Array类(class)有一个 indexOf method :

function indexOf(searchElement:*, fromIndex:int = 0):int

Searches for an item in an array by using strict equality (===) and returns the index position of the item.

Parameters

• searchElement:* — The item to find in the array.
• fromIndex:int (default = 0) — The location in the array from which to start searching for the item.

Returns

• int — A zero-based index position of the item in the array. If the searchElement argument is not found, the return value is -1.