I have the following JSON object data returned from my apicontroller :

[  

  {"id":2,"text":"PROGRAMME","parent":null},

  {"id":3,"text":"STAGE","parent":2},

  {"id":4,"text":"INFRA","parent":2},

  {"id":5,"text":"SYSTEM","parent":3},

  {"id":6,"text":"STOCK","parent":3}, 

  {"id":7,"text":"DPT","parent":3},

  {"id":9,"text":"EXTERNAL","parent":null} 

]

I want to replace "parent":null with "parent":'"#"'

I have tried the code below, but it is only replacing the first occurrence of "parent":null. How can I replace all "parent":null entries?

$(document).ready(function () {

    $.ajax({

        url: "http://localhost:37994/api/EPStructures2/",

        type: "Get",

        success: function (data) {

            var old = JSON.stringify(data).replace(null, "'#'"); //convert to JSON string

            var new = JSON.parse(old); //convert back to array

        },

        error: function (msg) { alert(msg); }

    });

});

Thanks,