Nodejs Array Different diff(init)

Method Source Code

Array.prototype.diff = function (init) {
    init = init || 0;/*from w  ww .  j ava  2s.c  o  m*/
    var g = this;
    return this.reduce(function(prev,cur) {
        prev.push(cur - (prev.length > 0 ? g[prev.length-1] : init));
        return prev;
    },[]);
}

Related

1. diff(a)

   function getSrv(name) {
     return angular.element(document.body).injector().get(name);
   function isNumeric(n) {
     return !isNaN(parseFloat(n)) && isFinite(n);
   function inArray(needle, haystack) {
       var length = haystack.length;
       for(var i = 0; i < length; i++) {
   ...
   

2. diff(a, k)

   Array.prototype.diff = function (a, k) {
     return this.filter (function (i) { return a.column (k).indexOf (eval ("i." + k)) < 0; });
   };
   

3. diff(arr)

   Array.prototype.diff = function (arr) {
           var mergedArr = this.concat(arr);
           return mergedArr.filter(function (e) {
               return mergedArr.indexOf(e) === mergedArr.lastIndexOf(e);
           });
   };
   

4. diff(array)

   Array.prototype.diff = function(array){
     return this.filter(function(i) {
       if(array){
         return !(array.indexOf(i) > -1)
     })
   

5. diff(array)

   Array.prototype.diff = function(array) {
       return this.filter(function(e){
           return (array.indexOf(e) < 0 );
       });
   

6. diff(part)

   Array.prototype.diff = function(part) {
       return this.filter(function(element) {return part.indexOf(element) < 0;});
   };
   

7. diff1(compare)

   Array.prototype.diff1 = function(compare) {
       return this.filter(function(elem) {return elem!=compare;})
   

8. diffArrays(a)

   function getJSON(yourUrl) {
       var Httpreq = new XMLHttpRequest(); 
       Httpreq.open("GET", yourUrl, false);
       Httpreq.send(null);
       return Httpreq.responseText;
   Array.prototype.diffArrays = function(a) {
       return this.filter(function(i) {
           return a.indexOf(i) < 0;
   ...
   

9. diffArray(arr1, arr2)

   function diffArray(arr1, arr2) {
     var newArr = arr1.concat(arr2);
     function checkItems(item) {
       if (arr1.indexOf(item) === -1 || arr2.indexOf(item) === -1) {
         return item;
     return newArr.filter(checkItems);
   diffArray([1, 2, 3, 5], [1, 2, 3, 4, 5]);