请各位大佬指点！nodejs如何把base64转换成blob求解答！

Question

nodejs如何把base64转换成blob

Answer 1

functiondataURLtoBlob(dataurl){vararr=dataurl.split(','),mime=arr[0].match(/:(.*?);/)[1],bstr=atob(arr[1]),n=bstr.length,u8arr=newUint8Array(n);while(n--){u8arr[n]=bstr.charCodeAt(n);}returnnewBlob([u8arr],{type:mime});}varblob=dataURLtoBlob('data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7');console.log(blob);