javascript blob to base64

Recently writing interface ———— about image upload The foreground uses the Vuejs, uses the base64 to upload the picture, filedata: "Data:image/jpeg;base64,9j/4aaqsk ...", puts this data directly in the address bar, also can display the picture, But

Base64 encoding and decoding of JS English is this: // Atob () decodes base64 Span style= "color: #008000;" >// Btoa () transcode the string to base64 var str = javascript ;window.btoa (str) // transcoding results "amf2yxnjcmlwda=="

SOURCE http://blog.csdn.net/cuixiping/article/details/45932793Canvas converted to Dataurl (get dataurl from canvas)var dataurl = canvas.toDataURL(‘image/png‘);var dataurl2 = canvas.toDataURL(‘image/jpeg‘, 0.8);Convert file object to Dataurl, Blob

Javascript and dataurlblob that are mutually converted between DataURL and File, Blob, and canvas objectsConvert canvas to dataURL (get dataURL from canvas) var dataurl = canvas.toDataURL('image/png');Convert File objects to dataURL and Blob objects

Canvas converted to Dataurl (get dataurl from canvas)var dataurl = canvas.toDataURL(‘image/png‘);Convert file object to Dataurl, Blob object to DataurlThe file object is also a Blob object, with the same processing.function readBlobAsDataURL(blob,

JavaScript converts a base64 image to formData and submits it through AJAX. Previously, we used the webcam plug-in to take a photo. After taking the photo, we got an image in base64 format. It's okay to directly display it. Just specify it in src,

Why? Users do not need to download images and then upload them through input file; The chrome plug-in can directly right-click the image on the page and upload the image directly; All to increase user experience! Ideas Request an image through

In order to take photos of the use of webcam-related plug-ins, its shooting is the base64 format of the picture, direct display no problem, in the SRC directly specified on it, but to upload to the server when the problem comes, the server side

Transcoding and decoding of base64/** * UTF16 and UTF8 conversion table * u+00000000–u+0000007f 0xxxxxxx* u+00000080–u+000007ff 110xxxxx 10xxxxxx* u+00000800–u+00 00FFFF 1110xxxx 10xxxxxx 10xxxxxx* u+00010000–u+001fffff 11110xxx 10xxxxxx 10xxxxxx

44336477Https://www.cnblogs.com/hhhyaaon/p/5928152.htmlHttps://developer.mozilla.org/zh-CN/docs/Web/API/File/Using_files_from_web_applicationsSolve the following problems: How to beautify the form of input upload file: Make input form hidden,