javascript - recursive function call returns [Circular] on console.log() -


so have script makes object current directory , below it.

here's console.log of return statement.

› node recursiveobjectifydir.js { files:    { 'license-mit': { stat: [object] },      gruntfile: { stat: [object] } },   dirs: { nested2: [circular] } }

what [circular] thing mean , come from?

here actual script reference:

var fs = require('fs'); var path = require('path');  function buildfolder(folder) {     if (!folder) {         folder = __dirname;     }     nestedfiles = fs.readdirsync(folder);     currentfile = folder + '/' + nestedfiles.pop();     main = {         files: {},         dirs: {}     };     while (currentfile !== folder + '/undefined') {         var filename = path.basename(currentfile, path.extname(currentfile));         var filestat = fs.statsync(currentfile);         var fullpath = folder + '/' + filename;         if (filestat.isdirectory()) {             if (fullpath.match(/git/)){             } else if (fullpath.match(/node_modules/)){             } else{               var folderobj = buildfolder(fullpath);               object.defineproperty(main.dirs,                   filename, {                       configurable: true,                       enumerable: true,                       value: folderobj                   }               );             }         } else {             if (fullpath.match(/ds_store/)){}             object.defineproperty(main.files,                 filename, {                     configurable: true,                     enumerable: true,                     value: {                         stat: filestat                     },                 }             );         }        currentfile = folder + '/' + nestedfiles.pop();     }     return main; }  buildfolderreturn = buildfolder(); console.log(buildfolderreturn);

with node.js (javascript language) have careful scope. within function, called recursively, variables @ start treating if in function scope accessible recursive calls of same function. put var in front of have done in loop.

var nestedfiles = fs.readdirsync(folder); var currentfile = folder + '/' + nestedfiles.pop(); var main = {     files: {},     dirs: {} };

i think might problem here. put var on unless expect available in scope already. unless in global scope suggest putting var on variable not in scope.


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