node check if file exists

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showing results for - "node check if file exists"
Jorge
07 Sep 2020
1const fs = require("fs"); // Or `import fs from "fs";` with ESM
2if (fs.existsSync(path)) {
3    // Do something
4}
Micaela
17 Jun 2019
1const fs = require("fs"); // Or `import fs from "fs";` with ESM
2if (fs.existsSync(path)) {
3    // Do something
4}
5
David
22 Jan 2017
1const fs = require('fs')
2// We will convert sync function into a promise function
3// so when is ready will provide the result without blocking.
4const exists = async (path) => {
5	return await new Promise((resolve) => {
6		resolve(fs.existsSync(path));
7	});
8};
9// If you have a file name samples on same root it will result true.
10exists('./samples.txt').then(res => console.log(res))
11console.log(`I'm not blocked as I'll show up on first`)
Adam
30 May 2020
1const fs = require('fs');
2
3let file = '../path/to/chad_warden.mpeg';
4
5// async
6const fileExists = (file) => {
7    return new Promise((resolve) => {
8        fs.access(file, fs.constants.F_OK, (err) => {
9            err ? resolve(false) : resolve(true)
10        });
11    })
12}
13
14// sync
15const fileExistsSync = (file) => {
16    try {
17        fs.accessSync(file, fs.constants.R_OK | fs.constants.W_OK);
18        return true;
19      } catch (err) {
20        return false;
21      }
22}
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