Using the JavaScript language, have the function MeanMode(arr) take the array of numbers stored in arr and return 1 if the mode equals the mean, 0 if they don't equal each other (ie. [5, 3, 3, 3, 1] should return 1 because the mode (3) equals the mean (3)). The array will not be empty, will only contain positive integers, and will not contain m…

meanMode.js

//Coderbyte

function MeanMode(arr) { 
	var sum=0,
		mean, mode, midpoint, modeStr, re,
		champTotal=0;

	//old faithful 
	arr.sort(function(a, b) {
	    return a - b;
	});

	//get mean
	for (var i =0; i<arr.length;i++){
		sum=sum +arr[i];
	}
	mean=sum/arr.length;

	//get mode

	modeStr = arr.join(' ');

	for (var j=0; j<arr.length; j++){

		re = new RegExp('(' + arr[j] +')', 'g');

		if (modeStr.match(re).length > champTotal){
			champTotal=modeStr.match(re).length;
			mode=arr[j];
		}

	}

	mode=parseInt(mode);

	return mode==mean ? 1 : 0;
      
}