The problem was that I gave it the wrong file name. test.txt
should have been text.txt
. Doh!
TypeError: Bad argument using Node.js fs.read()
-
10-07-2023 - |
سؤال
I'm trying to get fs.read()
to work but running into some issue(s). Here is my fread.js
script:
var fs = require('fs');
fs.open('test.txt', 'r', function (err, handle) {
var f = handle;
var b = new Buffer(100000);
fs.read(f, b, 0, 100000, null, function (err, bytesRead) {
console.log(b.toSting("utf8", 0, bytesRead));
fs.close(f);
});
});
Why do I get the following TypeError: Bad Argument
error upon running it?
$ node fread.js
fs.js:457
binding.read(fd, buffer, offset, length, position, wrapper);
^
TypeError: Bad argument
at Object.fs.read (fs.js:457:11)
at /home/max/dev/livelessons/fread.js:8:5
at Object.oncomplete (fs.js:107:15)
المحلول
نصائح أخرى
You should check that fs.open()
was successful first. Most likely err
is set and handle
is set to undefined, causing the "Bad Argument" error.
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