JS 由前端保存到文件

Posted 2022-09-18 413xiaol

function doSave(value, type, name) 
    var blob;
    if (typeof window.Blob == "function") 
        blob = new Blob([value], type: type);
     else 
        var BlobBuilder = window.BlobBuilder || window.MozBlobBuilder || window.WebKitBlobBuilder || window.MSBlobBuilder;
        var bb = new BlobBuilder();
        bb.append(value);
        blob = bb.getBlob(type);
    
    var URL = window.URL || window.webkitURL;
    var bloburl = URL.createObjectURL(blob);
    var anchor = document.createElement("a");
    if (‘download‘ in anchor) 
        anchor.style.visibility = "hidden";
        anchor.href = bloburl;
        anchor.download = name;
        document.body.appendChild(anchor);
        var evt = document.createEvent("MouseEvents");
        evt.initEvent("click", true, true);
        anchor.dispatchEvent(evt);
        document.body.removeChild(anchor);
     else if (navigator.msSaveBlob) 
        navigator.msSaveBlob(blob, name);
     else 
        location.href = bloburl;
    


var test = 
    a: [1, 2],
    b: [3, 4]

doSave(JSON.stringify(test), "text/latex", "hello.txt");