can-single-reference/dist/amd/can-single-reference.js

Assign a value to a function that can be collected later

/*can-single-reference@1.2.2#can-single-reference*/
define([
    'require',
    'exports',
    'module',
    'can-cid'
], function (require, exports, module) {
    (function (global, require, exports, module) {
        'use strict';
        var CID = require('can-cid');
        var singleReference;
        function getKeyName(key, extraKey) {
            var keyName = extraKey ? CID(key) + ':' + extraKey : CID(key);
            return keyName || key;
        }
        singleReference = {
            set: function (obj, key, value, extraKey) {
                obj[getKeyName(key, extraKey)] = value;
            },
            getAndDelete: function (obj, key, extraKey) {
                var keyName = getKeyName(key, extraKey);
                var value = obj[keyName];
                delete obj[keyName];
                return value;
            }
        };
        module.exports = singleReference;
    }(function () {
        return this;
    }(), require, exports, module));
});