Convert buffer to readable string in JavaScript?

For this, use the concept of toString(‘utf8’). Following is the code −

In the code below, there are detailed explanations about the buffer.

Example

var actualBufferObject = Buffer.from('[John Smith]', 'utf8')
console.log("The actual buffer object=");
console.log(JSON.stringify(actualBufferObject))
console.log("Get back the original object=");
console.log(actualBufferObject.toString('utf8'));
var myObjectValue = '[John Smith]';
console.log("The data you are getting from the buffer is equal to ASCII
code equivalent...")
for (var counter = 0; counter < myObjectValue.length; counter++) {
   console.log("The ascii value of " + myObjectValue[counter] + " is ="
   + (myObjectValue.charCodeAt(counter)));
}

To run the above program, you need to use the following command −

node fileName.js.

Here, my file name is demo197.js.

Output

This will produce the following output −

PS C:\Users\Amit\javascript-code> node demo197.js
The actual buffer object=
{"type":"Buffer","data":[91,74,111,104,110,32,83,109,105,116,104,93]}
Get back the original object=
[John Smith]
The data you are getting from the buffer is equal to ASCII code equivalent...
The ascii value of [ is =91
The ascii value of J is =74
The ascii value of o is =111
The ascii value of h is =104
The ascii value of n is =110
The ascii value of is =32
The ascii value of S is =83
The ascii value of m is =109
The ascii value of i is =105
The ascii value of t is =116
The ascii value of h is =104
The ascii value of ] is =93