Question

我正在使用nlapiLoadFile加载文件。它是二进制文件，所以当我用getValue（）获取数据时，我看到它的base64编码。如何将数据转换为字符串？

Answer 1

目前我正在使用它，它的工作就像一个魅力：

var Base64 = {
_keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=", encode: function (e) {
    var t = "";
    var n, r, i, s, o, u, a;
    var f = 0;
    e = Base64._utf8_encode(e);
    while (f < e.length) {
        n = e.charCodeAt(f++);
        r = e.charCodeAt(f++);
        i = e.charCodeAt(f++);
        s = n >> 2;
        o = (n & 3) << 4 | r >> 4;
        u = (r & 15) << 2 | i >> 6;
        a = i & 63;
        if (isNaN(r)) {
            u = a = 64
        } else if (isNaN(i)) {
            a = 64
        }
        t = t + this._keyStr.charAt(s) + this._keyStr.charAt(o) + this._keyStr.charAt(u) + this._keyStr.charAt(a)
    }
    return t
}, decode: function (e) {
    var t = "";
    var n, r, i;
    var s, o, u, a;
    var f = 0;
    e = e.replace(/[^A-Za-z0-9+/=]/g, "");
    while (f < e.length) {
        s = this._keyStr.indexOf(e.charAt(f++));
        o = this._keyStr.indexOf(e.charAt(f++));
        u = this._keyStr.indexOf(e.charAt(f++));
        a = this._keyStr.indexOf(e.charAt(f++));
        n = s << 2 | o >> 4;
        r = (o & 15) << 4 | u >> 2;
        i = (u & 3) << 6 | a;
        t = t + String.fromCharCode(n);
        if (u != 64) {
            t = t + String.fromCharCode(r)
        }
        if (a != 64) {
            t = t + String.fromCharCode(i)
        }
    }
    t = Base64._utf8_decode(t);
    return t
}, _utf8_encode: function (e) {
    e = e.replace(/rn/g, "n");
    var t = "";
    for (var n = 0; n < e.length; n++) {
        var r = e.charCodeAt(n);
        if (r < 128) {
            t += String.fromCharCode(r)
        } else if (r > 127 && r < 2048) {
            t += String.fromCharCode(r >> 6 | 192);
            t += String.fromCharCode(r & 63 | 128)
        } else {
            t += String.fromCharCode(r >> 12 | 224);
            t += String.fromCharCode(r >> 6 & 63 | 128);
            t += String.fromCharCode(r & 63 | 128)
        }
    }
    return t
}, _utf8_decode: function (e) {
    var t = "";
    var n = 0;
    var r = c1 = c2 = 0;
    while (n < e.length) {
        r = e.charCodeAt(n);
        if (r < 128) {
            t += String.fromCharCode(r);
            n++
        } else if (r > 191 && r < 224) {
            c2 = e.charCodeAt(n + 1);
            t += String.fromCharCode((r & 31) << 6 | c2 & 63);
            n += 2
        } else {
            c2 = e.charCodeAt(n + 1);
            c3 = e.charCodeAt(n + 2);
            t += String.fromCharCode((r & 15) << 12 | (c2 & 63) << 6 | c3 & 63);
            n += 3
        }
    }
    return t
}

}

例如，您可以解码base64编码的字符串，如下所示：

var decodingString = Base64.decode（encodedstring）;

Answer 2

这方面有很多资源，但这应该有助https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding。

简短而甜蜜的回答：

var str = atob('stringOfBase64');
console.log(str);

如何在SuiteScript中将二进制文件转换为字符串

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