src/helper.js
function forEach(obj, cb, ctx)
{
    for(var key in obj)
        cb.call(ctx, key, obj[key]);
}
function forEach(obj, cb, ctx)
{
    for(var key in obj)
        cb.call(ctx, key, obj[key]);
}
function forEach ( obj , cb , ctx ) { for ( var key in obj ) cb . call ( ctx , key , obj [ key ] ) ; }
Standard for-each over objects
@param {Object} obj
@param {Function} cb
@param {Object} ctx
Standard for - each over objects