JavaScript array slice versus delete

Question

Is there any reason why one should be used over the other?

e.g.

var arData=[\'a\',\'b\',\'c\'];
arData.slice(1,1);//removes \'b\'

var arData=[\'a\',         


        

Answer 1

delete leaves you with [ 'a', undefined, 'c' ]

splice leaves you with [ 'a', 'c' ]

slice doesn't do anything to the original array :) But it returns [ 'b' ] in your code