Using Orderby ascending and Orderby descending to sort array javascript

Array.prototype.orderby=function()
{
  let self=this;
  let arr=[self[0]], i=1;
    for(;i<self.length; i++)
    {
      let index=arr.findIndex(f=>f > self[i]);
      arr.splice(index==-1?arr.length: index, 0, self[i]);
    }
  return arr;
}

Array.prototype.orderdescby=function()
{ 
 let self=this;
 let arr=[self[0]], i=1;
    for(;i<self.length; i++)
    {
        let index=arr.findIndex(f=>f < self[i]);
        arr.splice(index==-1?arr.length:index,0,self[i]);
    }
 return arr;
}

const points = [40, 100, 1, 500, 25, 107,0];
console.log(points.orderby())
console.log(points.orderdescby())

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Javascript String extend for new function.

Javascript String extend for new function.
First Approch:

String.prototype.toArray=function(){
   let arr=[];
   for(let ch of this){
    arr.push(ch);
	}
	return arr;
}

let name="suresh";
console.log(name.toArray()); //output   [ 's', 'u', 'r', 'e', 's', 'h' ]

Second Approch:

String.prototype.toArray=function(){
	return this.split('');
}

let name="suresh";
console.log(name.toArray()); //output   [ 's', 'u', 'r', 'e', 's', 'h' ]

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