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工作從MDN網站方法Array.splice不能在Firefox控制檯
var myFish = ['angel', 'clown', 'mandarin', 'surgeon'];
// removes 0 elements from index 2, and inserts 'drum'
var removed = myFish.splice(2, 0, 'drum');
嘗試下面的代碼不分配,除去剪接['angel', 'clown', 'drum', 'mandarin', 'surgeon']
的預期輸出,而是和空數組[]
。