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45 lines
1.0 KiB
45 lines
1.0 KiB
4 years ago
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'use strict'
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var Buffer = require('buffer').Buffer
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var ta2str = (function () {
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if (global.TextDecoder) {
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var decoder = new TextDecoder('utf-8')
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return decoder.decode.bind(decoder)
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} else {
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return function ta2str (ta) {
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return ta2buf(ta).toString()
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}
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}
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})()
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var ab2str = (function () {
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if (global.TextDecoder) {
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var decoder = new TextDecoder('utf-8')
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return decoder.decode.bind(decoder)
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} else {
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return function ab2str (ab) {
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return Buffer.from(ab).toString()
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}
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}
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})()
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function ta2buf (ta) {
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var buf = Buffer.from(ta.buffer)
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if (ta.byteLength === ta.buffer.byteLength) {
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return buf
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} else {
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return buf.slice(ta.byteOffset, ta.byteOffset + ta.byteLength)
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}
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}
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module.exports = function (data, asBuffer) {
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if (data instanceof Uint8Array) {
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return asBuffer ? ta2buf(data) : ta2str(data)
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} else if (data instanceof ArrayBuffer) {
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return asBuffer ? Buffer.from(data) : ab2str(data)
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} else {
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return asBuffer ? Buffer.from(String(data)) : String(data)
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}
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}
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