* Extends object a by mutably adding to it the properties of object b. * * @param {Object} a The object to be extended * @param {Object} b The obje

* Make a map and return a function for checking if a key * is in that map.

Function: $iq * Create a Strophe.Builder with an <iq/> element as the root. * * Parameters: * (Object) attrs - The <iq/> element attributes i

* Determine if a value is an Object * * @param {Object} val The value to test * @returns {boolean} True if value is an Object, otherwise false

* Remove an item from an array

* Strict object type check. Only returns true * for plain JavaScript objects.

* Support testing using an element * @param {Function} fn Passed the created div and expects a boolean result

* Create a cached version of a pure function.

* Mark a function for special use by Sizzle * @param {Function} fn The function to mark

Function: $pres * Create a Strophe.Builder with a <presence/> element as the root. * * Parameters: * (Object) attrs - The <presence/> element