JSFiddle - React, Tailwind, and code Playground

by Jessie Lau

JavaScript

function balance2(arr){
	var sumLeft = arr.reduce(function(a,b){return a+b;});
    var sumRight=0;
    
    for(var i=0; i<arr.length-1;i++){
    	sumLeft -= arr[i];
        sumRight += arr[i];
        if(sumLeft == sumRight){return true;}
    }
    return false;
}

console.log(balance2([3,2,1,5,7,3]));