Nodejs Utililty Methods Array Remove

Array.prototype.remove_value = function(value){
    var len = this.length,
        i;
    for(i = 0;i < len;i+=1){
        if(this[i] === value){
            this.splice(i,1);
            i-=1;

Array.prototype.removerNaPosicao = function(index) {
  return this.splice(index, 1);
};