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Current File : //etc/kibana/node_modules/fastest-stable-stringify/index.js

'use strict';

var keyList = Object.keys;
var native_stringify = JSON.stringify;

function stringify(val, allowUndefined) {
    var i, max, str, keys, key, propVal, tipeof;

    tipeof = typeof val;

    if (tipeof === 'string') return native_stringify(val);
    if (val === true) return 'true';
    if (val === false) return 'false';
    if (val === null) return 'null';

    if (val instanceof Array) {
        str = '[';
        max = val.length - 1;
        for(i = 0; i < max; i++)
            str += stringify(val[i], false) + ',';
        if (max > -1) {
            str += stringify(val[i], false);
        }

        return str + ']';
    }

    if (val instanceof Object) {
        if (typeof val.toJSON === 'function')
            return stringify(val.toJSON(), allowUndefined);

        // only object is left
        keys = keyList(val).sort();
        max = keys.length;
        str = '';
        i = 0;
        while (i < max) {
            key = keys[i];
            propVal = stringify(val[key], true);
            if (propVal !== undefined) {
                if (i) {
                    str += ',';
                }
                str += native_stringify(key) + ':' + propVal;
            }
            i++;
        }
        return '{' + str + '}';
    }

    switch (tipeof) {
    case 'function':
    case 'undefined':
        return allowUndefined ? undefined : null;
    default:
        return isFinite(val) ? val : null;
    }
}

module.exports = function(obj) { return '' + stringify(obj, false); };