why else statement runs even if the if statement being true?

Guys, why the else statement runs even if the if statement is true

// file manager in node js --- FIRST PROJECT

const fs = require('fs'); //file system module
const path = require('path');

// First - specyfing the files extensions....
const images = ['.png', '.jpg', '.jpeg'];
const document = ['pdf', 'docx', 'doc'];
const videos = ['mp4', 'mov'];

//Read files from the source directory (folder named 'source')

//readdir - get  list of every file inside the folder...
fs.readdir('./source', (err, files) => {
  if (err) {
    console.log(err);
  } else {
    files.forEach((file) => {
      const filesExtention = path.extname(file).toLowerCase(); //path.extname allow you to extract specific components from file paths, such as file extensions.
      if (filesExtention === images[1]) {
        console.log('there is a .jpg file');
      } else {
        console.log('nothing here!');
      }
    });
  }
});

// file manager in node js --- FIRST PROJECT

const fs = require('fs'); //file system module
const path = require('path');

// First - specyfing the files extensions....
const images = ['.png', '.jpg', '.jpeg'];
const document = ['pdf', 'docx', 'doc'];
const videos = ['mp4', 'mov'];

//Read files from the source directory (folder named 'source')

//readdir - get  list of every file inside the folder...
fs.readdir('./source', (err, files) => {
  if (err) {
    console.log(err);
  } else {
    files.forEach((file) => {
      const filesExtention = path.extname(file).toLowerCase(); //path.extname allow you to extract specific components from file paths, such as file extensions.
      if (filesExtention === images[1]) {
        console.log('there is a .jpg file');
      } else {
        console.log('nothing here!');
      }
    });
  }
});

i'd rather have something like this, but all you're missing is the type definition of connection there

7 Replies

ErickO•2y ago

why the else statement runs even if the if statement is true

there's 99.999999% chance the if statement is, in fact, not true and therefore the else statement runs there's 0.000001% chance the Javascript is wrong and you're right you also don't say uh...which if statement you're having trouble with, there's 2 of them

SsteOP•2y ago

the one that checks if has a .jpg file in the folder what can I do to solve it? I am getting this message in the terminal

SsteOP•2y ago

ErickO•2y ago

probably means that is running 2 times, one time it has a .jpg file and the 2nd time it has a file that is not a jpg I'd start by checking if you are getting what you expect, console.log the name of the file or even just the extension, you'll see it running twice

SsteOP•2y ago

if I just wanna check one file?

ErickO•2y ago

either make sure there's only one file in your directory or don't use a loop to go through all the files, just pick the first one

SsteOP•2y ago

okay, thanks 🙂

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why else statement runs even if the if statement being true?