Node fs exists

Fs.writefile

const fs = require('fs');

fs.writeFile("/tmp/test", "Hey there!", function(err) {
    if(err) {
        return console.log(err);
    }
    console.log("The file was saved!");
}); 

// Or
fs.writeFileSync('/tmp/test-sync', 'Hey there!');

Source: stackoverflow.com

Node fs exists

const { promises: Fs } = require('fs')

async function exists (path) {  
  try {
    await Fs.access(path)
    return true
  } catch {
    return false
  }
}

// Example:
const Path = require('path')  
const path = Path.join(__dirname, "existing-file.txt")

await exists(path)  
// true

Source: futurestud.io

Nodejs file exists

const fs = require('fs')
// We will convert sync function into a promise function
// so when is ready will provide the result without blocking.
const exists = async (path) => {
	return await new Promise((resolve) => {
		resolve(fs.existsSync(path));
	});
};
// If you have a file name samples on same root it will result true.
exists('./samples.txt').then(res => console.log(res))
console.log(`I'm not blocked as I'll show up on first`)

Similar codes

0 vote384 views1 answer
Nodejs folder structure best practices
Javascript Node.js
1 vote346 views1 answer
Nodejs import instead of require
Javascript Node.js
-2 votes335 views1 answer
Nodejs fs writefile base64url
Javascript Node.js
0 vote353 views1 answer
Node string for euro sign
Javascript Node.js
0 vote369 views1 answer
Employee salary calculate in node
Javascript Node.js
1 vote349 views2 answers
Res.write in node js
Javascript Node.js
7 votes395 views3 answers
Atob nodejs
Javascript Node.js
0 vote347 views1 answer
How to wait for an exec command to fininsh in nodejs
Javascript Node.js
0 vote355 views1 answer
Node red reverse proxy for ui to root
Javascript Node.js
26 votes398 views6 answers
Nodejs open file
Javascript Node.js