fix looping in express example
fix looping in express example

Thunf/swiger,mahdaen/swig,cgvarela/swig,mrazvan92/swig-async,jerrylin1002/swig,notthetup/swig,gold3bear/swig,jerrylin1002/swig,CuteSephiroth/swig,cwhatley/swig,gold3bear/swig,jrvldam/swig,jrvldam/swig,mrazvan92/swig-async,genify/swig,mrazvan92/swig-template-callback,benpptung/swig,Thunf/swiger,jrvldam/swig,DragWeb/swig,cwhatley/swig,zetlen/swig,gitoneman/swig,mrazvan92/swig-async,notthetup/swig,Thunf/swiger,CuteSephiroth/swig,xiaoyang2022/swig,gogobook/swig,Lochlan/swig,genify/swig,zongkelong/swig,jerrylin1002/swig,gold3bear/swig,paularmstrong/swig,mahdaen/swig,mrazvan92/swig-template-callback,Lochlan/swig,notthetup/swig,benpptung/swig,xiaoyang2022/swig,DragWeb/swig,cgvarela/swig,xiaoyang2022/swig,DragWeb/swig,mrazvan92/swig-template-callback,genify/swig,gogobook/swig,Lochlan/swig,gitoneman/swig,zongkelong/swig,CuteSephiroth/swig,cwhatley/swig,paularmstrong/swig,mahdaen/swig,zongkelong/swig,zetlen/swig,benpptung/swig,paularmstrong/swig,gogobook/swig,zetlen/swig,cgvarela/swig,gitoneman/swig