Tom Tom - 1 year ago 137
jQuery Question

Jquery array find and replace entry on partial match

I have an array like this containing data like : [mode:id:A:B]


["del:123456789:0:0", "del:99887766:0:0", "edit:1471872633890:8845:0"]

is there anyway I can check and see if there is a partial match on the id and the remove then entry and replace it ?


match on
and replace the entire entry match with
so the array becomes :

["del:123456789:0:0", "del:99887766:0:0", "edit:1471872633890:8845:NW"]

As an aside... can you serialize an array for ajax posting ?
If not I need to rethink this anyway !


I'm trying to update an existing array entry or add a new entry.

This is what I've got...

var id = $(this).closest('tr').find('input[name="id[]"]').val()
var A = $(this).closest('tr').find('input[name="A[]"]').val()
var B = $(this).closest('tr').find('input[name="A[]"]').val()
var res = 'edit:' + id + ':' + A + ':' + B;

filters = {
if( value.indexOf(id) > -1 ) {
return res;
return value;

How do I actually update the values in the array ?

Answer Source

I would use map in this case. You can even use another loop, but it is easy to handle in this case and I like the behavior. Just do a search inside and return the new value.

var arr = ["del:123456789:0:0", "del:99887766:0:0", "edit:1471872633890:8845:0"];

arr = {
    if( value.indexOf("1471872633890") > -1 ) {
        return "edit:1471872633890:8845:NW";
    return value;


Or if you like, as for loop:

var arr = ["del:123456789:0:0", "del:99887766:0:0", "edit:1471872633890:8845:0"];

for( var i = 0; i < arr.length; i++ ) {
    if( arr[i].indexOf("1471872633890") > -1 ) {
        arr[i] = "edit:1471872633890:8845:NW";


If you use jQuery ajax there is no need to serialize the array. You can just send them with the data property.

var arr = ["del:123456789:0:0", "del:99887766:0:0", "edit:1471872633890:8845:0"];

    url: "foo.php",
    method: "post",
    data: {
        myArray: arr
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