Node.js Buffer.isEncoding() Method
Last Updated :
13 Oct, 2021
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The Buffer.isEncoding() method checks whether the given encoding is supported or not. This method returns a Boolean value either true or false.
Syntax:
javascript
Output:
javascript
Output:
Buffer.isEncoding( encoding )Parameters: This method accepts single parameter encoding which holds the encoding name. The supported encoding are ascii, utf8, utf16le, ucs2, base64, latin1, binary etc. Example 1:
// Node.js program to demonstrate the
// Buffer.isEncoding() method
// Displays whether the given encoding
// is supported or not
console.log(Buffer.isEncoding('utf8'));
console.log(Buffer.isEncoding('utf16le'));
console.log(Buffer.isEncoding('ascii'));
console.log(Buffer.isEncoding('asciivalue'));
console.log(Buffer.isEncoding('base64'));
console.log(Buffer.isEncoding('basename'));
true true true false true falseExample 2:
// Node.js program to demonstrate the
// Buffer.isEncoding() method
// Displays whether the given encoding
// is supported or not
console.log(Buffer.isEncoding('ucs2'));
console.log(Buffer.isEncoding('name'));
console.log(Buffer.isEncoding('binary'));
console.log(Buffer.isEncoding('latin1'));
console.log(Buffer.isEncoding('base64'));
true false true true trueNote: The above program will compile and run by using the
node index.js
command.
Reference: https://nodejs.org/api/buffer.html#buffer_class_method_buffer_isencoding_encoding