javascript - How to call an external function in node js route -


i little confused on how works...

i writing node/express app , there function wrote in own file, need use in route , want call function.

in other file (tranformthedata.js) there is:

module.exports = {     tranformthedata:function (data){     console.log('whatever') }

in node app.js file have

var formatjson = require('./js').tranformthedata;

can use 

formatjson(data)

and utilitze function? or have else, have seen few examples of doing not make sense me.

you should this:

// transformdata.js module.exports = {     formatjson: function(data) {         console.log('whatever')     },     otherfunction: function() {      } }  // app.js var tranformthedata = require('./path/to/tranformthedata.js'); var formatjson = tranformthedata.formatjson; var otherfunction = tranformthedata.otherfunction;  formatjson(data); // work

module.exports in case exporting object literal, , object has 2 functions. requiring file , assigning variable assign variable object literal, has access methods.

when call methods, can pass in whatever params want. in case of formatjson, it's accepting data param.


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