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isbinaryfile
Advanced tools
The isbinaryfile npm package is used to determine if a file is binary or text. This can be useful in various scenarios such as file processing, content analysis, and data validation.
Check if a file is binary by file path
This feature allows you to check if a file is binary by providing the file path. The function returns a promise that resolves to a boolean indicating whether the file is binary.
const { isBinaryFile } = require('isbinaryfile');
(async () => {
const result = await isBinaryFile('path/to/file');
console.log(result); // true or false
})();
Check if a file is binary by buffer
This feature allows you to check if a file is binary by providing a buffer. The function returns a promise that resolves to a boolean indicating whether the file is binary.
const { isBinaryFile } = require('isbinaryfile');
const fs = require('fs');
(async () => {
const buffer = fs.readFileSync('path/to/file');
const result = await isBinaryFile(buffer);
console.log(result); // true or false
})();
The isbinaryfile package is another option for determining if a file is binary or text. It offers similar functionality to the isbinaryfile package, allowing you to check files by path or buffer.
The file-type package can detect the file type of a buffer or stream. While it is more focused on identifying the file type rather than just determining if it is binary, it can be used to achieve similar results by checking the detected file type.
The binaryextensions package provides a list of binary file extensions. While it does not directly check if a file is binary, it can be used in conjunction with file extension checks to determine if a file is likely to be binary.
Detects if a file is binary in Node.js. Similar to Perl's -B
switch,
in that:
null
byte; if it's found, it's binaryAll the logic is also pretty much ported from ag.
Note: if the file doesn't exist or it is empty, this function returns false
.
npm install isbinaryfile
If you pass in one argument, this module assumes it's just the file path, and performs the appropriate file read and stat functionality internally, as sync options:
var isBinaryFile = require("isbinaryfile");
if (isBinaryFile(process.argv[2]))
console.log("It is!")
else
console.log("No.")
Ta da.
However, if you've already read and stat()
-ed a file (for some other reason),
you can pass in both the file's raw data and the stat's size
info to save
time:
fs.readFile(process.argv[2], function(err, data) {
fs.lstat(process.argv[2], function(err, stat) {
if (isBinaryFile(data, stat.size))
console.log("It is!")
else
console.log("No.")
});
});
Previous to version 2.0.0, this program always ran in sync mode. Now, there's
an async option. Simply pass a function as your second parameter, and isBinaryFile
will figure the rest out:
var isBinaryFile = require("isbinaryfile");
isBinaryFile(process.argv[2], function(err, result) {
if (err) return console.error(err);
if (result)
console.log("It is!")
else
console.log("No.")
}
Install mocha on your machine:
npm install mocha -g
Then run npm test
.
Copyright (c) 2013 Garen J. Torikian
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
FAQs
Detects if a file is binary in Node.js. Similar to Perl's -B.
The npm package isbinaryfile receives a total of 4,414,717 weekly downloads. As such, isbinaryfile popularity was classified as popular.
We found that isbinaryfile demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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