Downloading Object as a JSON file from Developer Tools

download-object-as-json-file-from-developer-tools.js

// Copy below code in console tab of developer tools

// Define JSON.decycle function
if (typeof JSON.decycle !== "function") {
    JSON.decycle = function decycle(object, replacer) {
        "use strict";

        var objects = new WeakMap();     // object to path mappings

        return (function derez(value, path) {


            var old_path;  
            var nu;  

            if (replacer !== undefined) {
                value = replacer(value);
            }

            if (
                typeof value === "object" && value !== null &&
                !(value instanceof Boolean) &&
                !(value instanceof Date) &&
                !(value instanceof Number) &&
                !(value instanceof RegExp) &&
                !(value instanceof String)
            ) {


                old_path = objects.get(value);
                if (old_path !== undefined) {
                    return {$ref: old_path};
                }

                objects.set(value, path);

                if (Array.isArray(value)) {
                    nu = [];
                    value.forEach(function (element, i) {
                        nu[i] = derez(element, path + "[" + i + "]");
                    });
                } else {

                    nu = {};
                    Object.keys(value).forEach(function (name) {
                        nu[name] = derez(
                            value[name],
                            path + "[" + JSON.stringify(name) + "]"
                        );
                    });
                }
                return nu;
            }
            return value;
        }(object, "$"));
    };
}


if (typeof JSON.retrocycle !== "function") {
    JSON.retrocycle = function retrocycle($) {
        "use strict";

        var px = /^\$(?:\[(?:\d+|"(?:[^\\"\u0000-\u001f]|\\([\\"\/bfnrt]|u[0-9a-zA-Z]{4}))*")\])*$/;

        (function rez(value) {



            if (value && typeof value === "object") {
                if (Array.isArray(value)) {
                    value.forEach(function (element, i) {
                        if (typeof element === "object" && element !== null) {
                            var path = element.$ref;
                            if (typeof path === "string" && px.test(path)) {
                                value[i] = eval(path);
                            } else {
                                rez(element);
                            }
                        }
                    });
                } else {
                    Object.keys(value).forEach(function (name) {
                        var item = value[name];
                        if (typeof item === "object" && item !== null) {
                            var path = item.$ref;
                            if (typeof path === "string" && px.test(path)) {
                                value[name] = eval(path);
                            } else {
                                rez(item);
                            }
                        }
                    });
                }
            }
        }($));
        return $;
    };
}

// define console.save method
(function(console){
    console.save = function(data, filename){

    if(!data) {
        console.error('Console.save: No data')
        return;
    }

    if(!filename) filename = 'console.json'

    if(typeof data === "object"){
        data = JSON.stringify(data, undefined, 4)
    }

    var blob = new Blob([data], {type: 'text/json'}),
        e    = document.createEvent('MouseEvents'),
        a    = document.createElement('a')

    a.download = filename
    a.href = window.URL.createObjectURL(blob)
    a.dataset.downloadurl =  ['text/json', a.download, a.href].join(':')
    e.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null)
    a.dispatchEvent(e)
 }
})(console)

how-to-use.js

1: Right-click on the object in console and click Store as a global
2: variable the output will be something like temp1
3: console.save(JSON.decycle(temp1));