Is there a way to use Array.splice in javascript with the third parameter as an array?

Question

I\'m attempting the following:

var a1 = [\'a\', \'e\', \'f\'];  // [a, e, f]
var a2 = [\'b\', \'c\', \'d\'];  // [b, c, d]
a1.splice(1, 0, a2);       // expe         


        

Answer 1

This should do the trick.

var a1 = ['a', 'e', 'f'];
var a2 = ['b', 'c', 'd'];

a1.concat(a2, a1.splice(1,a1.length-1)) // [a, b, c, d, e, f]