Nodejs Array Average average()

Here you can find the source of average()

Method Source Code

Array.prototype.average = function(){
  return this.reduce( (a,b) => a + b, 0) / this.length
}

Related

  1. avarage()
    Array.prototype.avarage = function()
        return this.sum() / this.length;
    Array.prototype.sum = function()
        var sum = 0;
        for(var i = this.length; -- i >= 0 ;)
            sum += (this[i] === null || this[i] === undefined) ? 0 : this[i];
        return sum;
    
  2. average()
    Array.prototype.average = function() {
      var avg = 0;
      this.forEach(function(val) {
        avg += val;
      });
      return avg / this.length;
    };
    
  3. average()
    Array.prototype.average = function () {
      return this.sum() / this.length
    
  4. average()
    Array.prototype.average = function () {
      return this.sum() / this.length;
    };
    console.log([1, 2, 3, 4].average());
    
  5. average()
    Array.prototype.average = function () {
      return (!this.length) ? NaN : this.reduce((acc, value) => {
        return acc + value;
      }) / this.length;
    };
    
  6. average()
    Array.prototype.average = function()
      if (this.length < 1) {
          return Number.NaN;
      return this.sum() / this.length;
    
  7. average()
    Array.prototype.average = function () {
        var sum = 0, j = 0;
        for (var i = 0; i < this.length, isFinite(this[i]); i++) {
            sum += parseFloat(this[i]); ++j;
        return j ? sum / j : 0;
    };