Nodejs Utililty Methods Array Move Up

Description

The list of methods to do Array Move Up are organized into topic(s).

Method

Array.prototype.moveUp = function(element, offset) 
    var index = this.indexOf(element);    
    var newPos = index - (offset || 1);
    if(index === -1) { throw new Error("Element not found in array"); }
    if(newPos < 0) { newPos = 0; }
    this.splice(index,1);
    this.splice(newPos,0,element);
};
...

moveUp(value, by)

Array.prototype.moveUp = function(value, by) {
  var index = this.indexOf(value),
    newPos = index - (pos || 1);
  if (index === -1) {
    throw new Error('Item not found');
  if (newPos < 0) {
    newPos = 0;
  this.splice(index,1);
  this.splice(newPos, 0, value);

moveUp(value, by)

Array.prototype.moveUp = function(value, by) {
    var index = this.indexOf(value),
        newPos = index - (by || 1);
    if(index === -1)
        throw new Error("Element not found in array");
    if(newPos < 0)
        newPos = 0;
    this.splice(index,1);
    this.splice(newPos,0,value);
...