Created
July 14, 2017 08:22
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callbackDemo
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| function main(data,cb){ | |
| fun1(data,function(err,data){ | |
| if(!err){ | |
| fun2(data,function(err,data){ | |
| if(!err){ | |
| fun3(data,cb); | |
| }else{ | |
| cb(err); | |
| } | |
| }); | |
| }else{ | |
| cb(err); | |
| } | |
| }); | |
| } |
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