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

private moveElements(source: Array, target: Array) {
    target.push(...source);
    source.splice(0, source.length);
    //or
    [].push.apply(target,source);
    source.splice(0, source.length);
}