![]() ![]() You can verify these functions right now in your console tab in the browser window. This btoa() method simply encodes or creates the Base64 ASCII string from the given file or object.Īnd this atob() method decodes the above Base64 string and returns the original output. These methods atob() and btoa() are used to convert to string and base64 format respectively. ![]() I am not going into depth about how the base64 works inside but we will discuss methods through which we can convert string to base64. ![]() Simply, encoding is the way through which we convert data like binary into ASCII format and decoding is vice versa that means it converts that ASCII format back to the original content.īut one thing to note is that many users got confused with this encoding because of its data generated and think like it is an encryption-decryption and compression algorithm but it is not, this is just the simple conversion from binary data to ASCII format.Īnd the other thing to note in this is while encoding it produces the string which is approximately 1.33 times the size of the original file. We already have written one post regarding the same encode and decode in Base64 in Java. If you want to learn more about Base64 conversions in JavaScript, read this guide.Hi, in this tutorial, we are going to talk about 3 different ways through which we can do Base64 String encode and decode in Javascript and Node.js. You can even use it to perform ASCII, HEX, UTF-16, and UCS2 encodings and decodings. The Buffer object is not just limited to Base64 conversions. We looked at how to use the native Buffer module to perform the Base64 encoding and decoding in a Node.js application. That's all for Base64 encoding and decoding in Node.js. log (str ) // Base64 Encoding in Node.js Conclusion toString ( 'utf-8' ) // print normal stringĬonsole. from (base64, 'base64' ) // decode buffer as UTF-8 const str = buff. Here is what it looks like: // Base64 encoded string const base64 = 'QmFzZTY0IEVuY29kaW5nIGluIE5vZGUuanM=' // create a buffer const buff = Buffer. All you need to do is create a buffer from the Base64 encoding string by using base64 as the second parameter to om() and then decode it to the UTF-8 string by using the toString() method. The Base64 decoding process is very much similar to the encoding process. The second parameter in om() is optional when dealing with plain-text (UTF-8) strings. In the above example, we created a buffer from the string and used the toString() method to decode the buffer as a Base64 string. log (base64 ) // QmFzZTY0IEVuY29kaW5nIGluIE5vZGUuanM= toString ( 'base64' ) // print Base64 stringĬonsole. from (str, 'utf-8' ) // decode buffer as Base64 const base64 = buff. Here is an example: // plain-text string const str = 'Base64 Encoding in Node.js' // create a buffer const buff = Buffer. If no character encoding is specified, UTF-8 will be used as the default. ![]() This method takes two parameters, a plain-text string, and the character encoding, and creates a buffer or binary data array for the given encoding. To convert a string into a Base64 encoded string, we first create a buffer from the given string using the om() method. Let us look at the below examples that explain how to use the Buffer object to perform Base64 encoding and decoding in a Node.js application. This includes to and from UTF-8, UCS2, Base64, ASCII, UTF-16, and even the HEX encoding scheme. The Buffer object provides several methods to perform different encoding and decoding conversions. Internally, Buffer represents binary data in the form of a sequence of bytes. Buffer is available as a global object, and you don't need to explicitly require this module in your application. Luckily, Node.js provides a native Buffer module that can be used to perform Base64 encoding and decoding. These methods are part of the window object and are only available in the browser. Unfortunately, Node.js doesn't support standard JavaScript functions like atob() and btoa() for Base64 encoding. Today, you'll learn how to do the Base64 encoding and decoding in a Node.js application. In an earlier article, we looked at how to Base64 encode and decode a string in Java and JavaScript. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |