currying.js

//Curried Function taking two parameters.
var repeatString=(string)=>(count)=>Array(count).fill(string).join("");

//Creating custom functions with currying.
var repeatStar=repeatString("*"); // (count)=>Array(count).fill("*").join("");
var repeatSpace=repeatString(" "); // (count)=>Array(count).fill(" ").join("");

for(let i=0;i<8;i++){
console.log(repeatSpace(8-i)+repeatStar(2*i+1));
}
/*
        *
       ***
      *****
     *******
    *********
   ***********
  *************
 ***************          */