@mt-kit/utils/dist/download-data-file/index.js

一个常用的工具库

/**
 * 根据文件数据进行下载
 * @param {*} data Blob 对象的 BlobPart 参数
 * @param {*} filename 保存的文件名
 * @param {*} mime 文件的 MIME 类型
 * @param {*} bom Blob 对象的 BlobPart 参数
 */
export default function downloadDataFile(data, filename, mime, bom) {
    const blobData = bom === undefined ? [data] : [bom, data];
    const blob = new Blob(blobData, {
        type: mime || "application/octet-stream"
    });
    const blobURL = window.URL.createObjectURL(blob);
    const tempLink = document.createElement("a");
    tempLink.style.display = "none";
    tempLink.href = blobURL;
    tempLink.setAttribute("download", filename);
    if (tempLink.download === undefined) {
        tempLink.setAttribute("target", "_blank");
    }
    document.body.append(tempLink);
    tempLink.click();
    tempLink.remove();
    window.URL.revokeObjectURL(blobURL);
}
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