file-name (1), file-name (2)

noDuplicateNamingPattern.js

const boxers = [ {name: "Muhammad Ali"}, {name: "Barry McGuigan"} ];
const boxer = boxers[0];
let clone = $.extend(true, {}, boxer);
let index = 1;

let isNameUnique = name => _(boxers)
    .chain()
    .map(dg => dg.name)
    .all(n => n !== name)
    .value();

do {
    clone.name = boxer.name + " (" + index + ")";
    index++;
} while (!isNameUnique(clone.name));
    
console.log(clone.name); // Muhammad Ali (1), Muhammad Ali (2)...