because I want to send a picture to the app end, I have to send them a binary picture. I can"t even use Blob to solve the base64. How to transfer the base64 picture to the app end in binary form
because I want to send a picture to the app end, I have to send them a binary picture. I can"t even use Blob to solve the base64. How to transfer the base64 picture to the app end in binary form
/**
* base64urlBlob
* @param urlData
* urlbase64
*/
function convertBase64UrlToBlob(urlData){
var arr = urlData.split(','), mime = arr[0].match(/:(.*?);/)[1],
bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
while(n--){
u8arr[n] = bstr.charCodeAt(n);
}
return new Blob([u8arr], {type:mime});
}
if you want to use the form, it is:
var formData = new FormData() ;
var blobDate = convertBase64UrlToBlob( base64 );
formData.append("file", blobDate); // Blob object is fine, isn't it?
has been solved. Just send base64. You don't have to convert to binary
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