Edit 26 Aug 2020: As suggested by Ali in the comments, using codecs.encode(b, “base64”) would result in extra line breaks for MIME syntax. Only use this method if you do want those line breaks formatting. For a plain Base64 encoding/decoding, use base64.b64encode and base64.b64decode. See the answer from Ali for details. In Python 3, arbitrary … Read more
I followed xehpuk’s answer but had issues with certain images having the last few rows of pixels missing when rendered in certain browsers via a data url (Chrome and Firefox, Safari seemed to render them fine). I suspect this is because the browser is doing it’s best to interpret the data but the last few … Read more
in Node typescript: import { Buffer } from “buffer”; const b64 = “SGVsbG8sIFdvcmxkIQ==”; const str=”Hello, World!” const decode = (str: string):string => Buffer.from(str, ‘base64’).toString(‘binary’); const encode = (str: string):string => Buffer.from(str, ‘binary’).toString(‘base64’); test(‘base64 decode’, () => { expect(decode(b64)).toEqual(str) }); test(‘base64 decode’, () => { expect(encode(str)).toEqual(b64) }); test(‘base64 encode/decode’, () => { expect(decode(encode(str))).toEqual(str) });
The base64 code that you have copied is broken. Close to the end there is == in the middle of the code. That is a filler that is placed at the end of a base64 code. Remove the part after ==, and it will work fine. <img src=”data:image/svg+xml;base64,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”/> Demo: http://jsfiddle.net/Lsr4s/2/ Edit: Downloading the svg file … Read more
I think part of the problem you’re hitting is that jQuery.ajax does not natively support XHR2 blob/arraybuffer types which can nicely handle binary data (see Reading binary files using jQuery.ajax). If you use a native XHR object with xhr.responseType=”arraybuffer”, then read the response array and convert it to Base64, you’ll get what you want. Here’s a … Read more
Try this :- <input id=”inputFile” type=”file” onchange=”convertToBase64();” /> <script type=”text/javascript”> function convertToBase64() { //Read File var selectedFile = document.getElementById(“inputFile”).files; //Check File is not Empty if (selectedFile.length > 0) { // Select the very first file from list var fileToLoad = selectedFile[0]; // FileReader function for read the file. var fileReader = new FileReader(); var base64; … Read more
[…] the backend developer […] insists that the media files (images/videos) should be transferred as base64 encoded in json files. This is a very bad (and silly) idea up-front. You do not want to transfer large amount of binary data as strings. Especially not Unicode strings. Here you need to arm up and convince your … Read more
An MD5 value is always 22 (useful) characters long in Base64 notation. Many Base64 algorithms will also append 2 characters of padding when encoding an MD5 hash, bringing the total to 24 characters. The padding adds no useful information and can be discarded. Only the first 22 characters matter. Here’s why: An MD5 hash is … Read more