bml-workstand-ui
Version:
A Component Library for Vue.js.
27 lines (23 loc) • 711 B
JavaScript
/**
* database64文件格式转换为2进制
*
* @param {[String]} data dataURL 的格式为 “data:image/png;base64,****”,逗号之前都是一些说明性的文字，我们只需要逗号之后的就行了
* @param {[String]} mime [description]
* @return {[File]} [description]
*/
export default function(data, mime,filename) {
data = data.split(',')[1];
data = window.atob(data);
var ia = new Uint8Array(data.length);
for (var i = 0; i < data.length; i++) {
ia[i] = data.charCodeAt(i);
};
// canvas.toDataURL 返回的默认格式就是 image/png
/*
return new Blob([ia], {
type: mime
});
*/
let file =new File([ia], filename, {type:mime});
return file;
};