devextreme/core/guid.js

HTML5 JavaScript Component Suite for Responsive Web Development

/**
 * DevExtreme (core/guid.js)
 * Version: 18.1.3
 * Build date: Tue May 15 2018
 *
 * Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
 * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
 */

"use strict";
var Class = require("./class");
var Guid = Class.inherit({
    ctor: function(value) {
        if (value) {
            value = String(value)
        }
        this._value = this._normalize(value || this._generate())
    },
    _normalize: function(value) {
        value = value.replace(/[^a-f0-9]/gi, "").toLowerCase();
        while (value.length < 32) {
            value += "0"
        }
        return [value.substr(0, 8), value.substr(8, 4), value.substr(12, 4), value.substr(16, 4), value.substr(20, 12)].join("-")
    },
    _generate: function() {
        var value = "";
        for (var i = 0; i < 32; i++) {
            value += Math.round(15 * Math.random()).toString(16)
        }
        return value
    },
    toString: function() {
        return this._value
    },
    valueOf: function() {
        return this._value
    },
    toJSON: function() {
        return this._value
    }
});
module.exports = Guid;
module.exports.default = module.exports;