basant307/AI_Governance_Project

1'use strict';2 3module.exports = function (data, opts) {4    if (!opts) opts = {};5    if (typeof opts === 'function') opts = { cmp: opts };6    var cycles = (typeof opts.cycles === 'boolean') ? opts.cycles : false;7 8    var cmp = opts.cmp && (function (f) {9        return function (node) {10            return function (a, b) {11                var aobj = { key: a, value: node[a] };12                var bobj = { key: b, value: node[b] };13                return f(aobj, bobj);14            };15        };16    })(opts.cmp);17 18    var seen = [];19    return (function stringify (node) {20        if (node && node.toJSON && typeof node.toJSON === 'function') {21            node = node.toJSON();22        }23 24        if (node === undefined) return;25        if (typeof node == 'number') return isFinite(node) ? '' + node : 'null';26        if (typeof node !== 'object') return JSON.stringify(node);27 28        var i, out;29        if (Array.isArray(node)) {30            out = '[';31            for (i = 0; i < node.length; i++) {32                if (i) out += ',';33                out += stringify(node[i]) || 'null';34            }35            return out + ']';36        }37 38        if (node === null) return 'null';39 40        if (seen.indexOf(node) !== -1) {41            if (cycles) return JSON.stringify('__cycle__');42            throw new TypeError('Converting circular structure to JSON');43        }44 45        var seenIndex = seen.push(node) - 1;46        var keys = Object.keys(node).sort(cmp && cmp(node));47        out = '';48        for (i = 0; i < keys.length; i++) {49            var key = keys[i];50            var value = stringify(node[key]);51 52            if (!value) continue;53            if (out) out += ',';54            out += JSON.stringify(key) + ':' + value;55        }56        seen.splice(seenIndex, 1);57        return '{' + out + '}';58    })(data);59};60