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										 |  |  |  | utf8-typed | 
					
						
							|  |  |  |  | ========== | 
					
						
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										 |  |  |  | Base64, TypedArrays, and UTF-8 / Unicode conversions in Browser (and Node) JavaScript | 
					
						
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							|  |  |  |  | This is based wholly on the work by good folks at the MDN. | 
					
						
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										 |  |  |  | See <https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding> | 
					
						
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										 |  |  |  | Examples | 
					
						
							|  |  |  |  | ======== | 
					
						
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							|  |  |  |  | ```javascript | 
					
						
							|  |  |  |  | // Base64 | 
					
						
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							|  |  |  |  | var myArray = base64DecToArr("QmFzZSA2NCDigJQgTW96aWxsYSBEZXZlbG9wZXIgTmV0d29yaw=="); // "Base 64 \u2014 Mozilla Developer Network" | 
					
						
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							|  |  |  |  | var myBuffer = base64DecToArr("QmFzZSA2NCDigJQgTW96aWxsYSBEZXZlbG9wZXIgTmV0d29yaw==").buffer; // "Base 64 \u2014 Mozilla Developer Network" | 
					
						
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							|  |  |  |  | console.log(myBuffer.byteLength); | 
					
						
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							|  |  |  |  | // Crazy Unicode | 
					
						
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							|  |  |  |  | var sMyInput = "I'm a ☢ ☃ that plays 𝄢 guitar and spea̧͈͖ks Ar̽̾̈́͒͑ ̶̧̨̱̹̭̯ͧ̾ͬC̷̙̲̝͖ͭ̏ͥͮ͟Oͮ͏̮̪̝͍M̲̖͊̒ͪͩͬ̚̚͜!"; | 
					
						
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							|  |  |  |  | var aMyUTF8Input = strToUTF8Arr(sMyInput); | 
					
						
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							|  |  |  |  | var sMyBase64 = base64EncArr(aMyUTF8Input); | 
					
						
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							|  |  |  |  | alert(sMyBase64); | 
					
						
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							|  |  |  |  | var aMyUTF8Output = base64DecToArr(sMyBase64); | 
					
						
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							|  |  |  |  | var sMyOutput = UTF8ArrToStr(aMyUTF8Output); | 
					
						
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							|  |  |  |  | alert(sMyOutput); | 
					
						
							|  |  |  |  | ``` | 
					
						
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							|  |  |  |  | License | 
					
						
							|  |  |  |  | ======= | 
					
						
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										 |  |  |  | Mozilla has licensed this code in the Public Domain, which means that I am at liberty to re-license my copy | 
					
						
							|  |  |  |  | under the Apache 2, which is something that, general speaking, your legal department will feel more comfortable with. | 
					
						
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							|  |  |  |  | See <https://developer.mozilla.org/en-US/docs/MDN/About#Copyrights_and_licenses> |