Can anyone help to remove space from my code

Question

function contact(name, number) {
this.name = name;
this.number = number;
this.print= function(){
console.log(name,":",number)
}

}

var a = new contact("David", 12345);
var b = new contact("Amy", 987654321);
a.print();
b.print();

Answer 1

If you need output without any space

console.log(name,":",number)
Replace with
console.log(name+":"+number)

Answer 2

You can use + instead of , like
name + "brooh "+ other_name