Kata js generateShape

Kata_js_generateShape.js

//https://www.codewars.com/kata/59a96d71dbe3b06c0200009c/train/javascript

function generateShape(num){
    var outcome = "";
    for(var i = 0; i < num;i++){
        for(var j = 0; j < num;j++){
        outcome=outcome+"+";
        }
        outcome=outcome+"\n";
    }
    return outcome;
}

console.log(generateShape(2));
console.log("++\n++");