There is any way to check if there is any directory/file is exist in location and create using typescript ?
I tried to google but all are in js example I need to know how to do in typescript to that operation
2
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Browser? NodeJS?Pablo– Pablo2017-11-27 11:40:38 +00:00Commented Nov 27, 2017 at 11:40
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google chrome, yes NodeJs project with angularAmit Singh Rawat– Amit Singh Rawat2017-11-27 11:48:01 +00:00Commented Nov 27, 2017 at 11:48
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1 Answer
You can do this using the following function, it attempts to create a folder (which errors if it does not exist) and then calls you back.
Functions for folders and files shown:
import * as fs from 'fs';
export function createDirectory(path: string, mask: number | null, cb: (err: NodeJS.ErrnoException | null) => void) {
if (!mask) {
mask = 484; //0744
}
fs.mkdir(path, mask, (err: NodeJS.ErrnoException) => {
if (err && err.code !== 'EEXIST') {
// Error (not folder already exists)
cb(err);
return;
}
// Folder created, or already exists
cb(null);
});
}
export function createFile(path: string, cb: (err: NodeJS.ErrnoException | null) => void) {
fs.stat(path, (err, stat) => {
if (err) {
if (err.code === 'ENOENT') {
// Create the File
fs.writeFile(path, '', (err) => {
cb(err);
});
} else {
// Error
cb(err);
}
} else {
// File already exists
cb(null);
}
});
}
It has all the appropriate type annotations that you need to guide you.
2 Comments
Amit Singh Rawat
hello @Fenton there is [mask: number] what is this mask for ?
Fenton
That's for the directory permissions: filepermissions.com/directory-permission/0744