How to Use the buffer. toJSON method in node. js _ node. js

Source: Internet
Author: User
Tags tojson
This article mainly introduces node. buffer in js. description of the toJSON method. This article introduces the buffer. toJSON method description, syntax, receiving parameters, use instances and implementation source code. For more information, see Method description:

Converts a buffer object to json format.

Syntax:

The Code is as follows:


Buffer. toJSON ()

Receiving parameters:

None

Example:

The Code is as follows:


Var buf = new Buffer ('test ');
Var json = JSON. stringify (buf );
Console. log (json );
// '{"Type": "Buffer", "data": [116,101,115,116]}'
Var copy = JSON. parse (json, function (key, value ){
Return value & value. type = 'buffer'
? New Buffer (value. data)
: Value;
});
Console. log (copy );
//

Source code:

The Code is as follows:


Buffer. prototype. toJSON = function (){
Return {
Type: 'buffer ',
Data: Array. prototype. slice. call (this, 0)
};
};

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