node js check size {} code example

Example 1: nodejs get file size

var fs = require("fs"); //Load the filesystem module
var stats = fs.statSync("myfile.txt")
var fileSizeInBytes = stats["size"]
//Convert the file size to megabytes (optional)
var fileSizeInMegabytes = fileSizeInBytes / 1000000.0

Example 2: array length javascript

var arr = [10,20,30,40,50]; //An Array is defined with 5 instances

var len= arr.length;  //Now arr.length returns 5.Basically, len=5.
console.log(len); //gives 5
console.log(arr.length); //also gives 5