console.log(repeat('Ha!'));
console.log(repeat('Ha!',2));
console.log(repeat('Ha!',3));
console.log(repeat('Ha!',5));
function repeat(str, val)
{
var st = str.split(' ')
if(val<0)
{
return 'Invalid';
}
else
{
for(var i =0 ; i<val-1 ; i++)
{
st.push(str)
}
return st.join('')
}
}
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