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function runkit_class_emancipate (classname) {
    // !No description available for runkit_class_emancipate. @php.js developers: Please update the function summary text file.
    // 
    // version: 1109.2015
    // discuss at: http://phpjs.org/functions/runkit_class_emancipate    // +   original by: Brett Zamir (http://brett-zamir.me)
    // %          note 1: Function can only obtain classes from the global context
    // %          note 2: We have to delete all items on the prototype
    // *     example 1: function A () {}
    // *     example 1: A.prototype.methodA = function () {};    // *     example 1: function B () {}
    // *     example 1: runkit_class_adopt('B', 'A');
    // *     example 1: runkit_class_emancipate('B');
    // *     returns 1: true
    if (typeof this.window[classname] !== 'function') {        return false;
    }
 
    for (var p in this.window[classname].prototype) {
        delete this.window[classname].prototype[p];    }
    return true;
}

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function A () {}
A.prototype.methodA = function () {};
function B () {}
runkit_class_adopt('B', 'A');
runkit_class_emancipate('B');

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true