javascript - JS Array Splice to remove an element in an Array -

i have table being populated array containing list of products , quantities order placed customer. on order confirmation screen user can remove items in order clicking delete button associated particular row.

this html

<div id="summary">     <table id="ordertable">         <tr><th>product</th>         <th>quantity</th>         <th></th>         </tr>     </table> </div> 

this js

if($.cookie('order_cookie') != undefined){     productarray = json.parse($.cookie('order_cookie'));     $.cookie('order_cookie', json.stringify(productarray), { expires: 1, path: '/' }); }  var ordertable = document.getelementbyid("ordertable");  //loop through array for(i = 0; < productarray.length; ++){     item = productarray[i];     var x = item.split(':');     var row = ordertable.insertrow(1);     var cell1 = row.insertcell(0);     var cell2 = row.insertcell(1);     var cell3 = row.insertcell(2);     cell1.innerhtml = x[0];     cell2.innerhtml = x[1];     cell3.innerhtml = "<input type='button' value='delete' class='deletebtn'/>" }  //edit function  $(".editbtn").click(function(){    console.log("edit clicked"); });  //delete function $(".deletebtn").click(function(){    console.log(productarray);    var row = this.parentnode.parentnode;    ordertable.deleterow(row.rowindex);//remove table    productarray.splice(row.rowindex);//remove order array    console.log(productarray);   });  //confirm order function $(".confirmbtn").click(function(){    console.log("confirm clicked"); }); 

currently can remove elements table. when try remove element array removes first element of array

for example:

array before delete

["excel 5lb black:2", "excel 5lb black:3", "sato white label:2", "sato ink pads:1", "sato gun:2"]  

array when delete clicked once

["excel 5lb black:2", "excel 5lb black:3", "sato white label:2", "sato ink pads:1"]  

array when delete clicked twice

["excel 5lb black:2", "excel 5lb black:3", "sato white label:2"]  

array when delete clicked third time

["excel 5lb black:2", "excel 5lb black:3"]  

array when delete clicked fourth time

["excel 5lb black:2"]  

the code responsible is:

//delete function $(".deletebtn").click(function(){    console.log(productarray);    var row = this.parentnode.parentnode;    ordertable.deleterow(row.rowindex);//remove table    productarray.splice(row.rowindex);//remove order array    console.log(productarray);   }); 

the idea row removed table same index item removed array not working @ moment.

productarray.splice(row.rowindex,1); 

use splice method remove

https://developer.mozilla.org/en-us/docs/web/javascript/reference/global_objects/array/splice

just suggestion: don't need worry deleting both in table , in array if use ng-repeat of angular.js