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

With ES6, you can use the spread operator. It makes it much more concise and readable.

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

a1.splice(1, 0, ...a2);
console.log(a1)