首先,需要创建一个ArrayBuffer对象,并使用Uint8Array视图向其写入数据。 使用TextDecoder将ArrayBuffer转换为String: 然后,使用TextDecoder对象的decode方法将ArrayBuffer中的字节序列解码为字符串。 输出或返回转换后的String: 最后,输出或返回解码后的字符串。 下面是完整的代码示例: javascript // 创建一个ArrayBuffer对象并...
if (typeof value === "string") return fromString(value, encodingOrOffset); // 处理其它数据类型,省略异常处理等其它代码 if (isAnyArrayBuffer(value)) return fromArrayBuffer(value, encodingOrOffset, length); var b = fromObject(value); }; 可以看出 Buffer.from() 工厂函数,支持基于多种数据类型(...
Buffer.from(buffer):复制传入的 Buffer 实例的数据,并返回一个新的 Buffer 实例 Buffer.from(string[, encoding]):返回一个被 string 的值初始化的新的 Buffer 实例 改写后语句: AI检测代码解析 let length = array.length; let modebuf = new ArrayBuffer(length) let modeview = new Uint8Array(modebuf)...
encoding]) * Buffer.from(array) * Buffer.from(buffer) * Buffer.from(arrayBuffer[, byteOffset[, length]]) **/Buffer.from=functionfrom(value, encodingOrOffset, length) {if(typeofvalue ==="string")returnfromString(value, encodingOrOffset);// 处理其它...
Uint8Array 则是8位无符号整型数组(一段以8bit数据为单位的无符号整型数组),是 ArrayBuffer 的一种 1.string 转 buffer varbuffer = Buffer.from("hello,world"); console.log(buffer); 1. 2. <Buffer 68 65 6c 6c 6f 2c 77 6f 72 6c 64> ...
* @param {String} dirPath 分片文件夹 * @param {String} filePath 目标文件 * @param {String} hash 文件hash * @param {Number} total 分片文件总数 * @returns {Promise}*/functionmergeFile(dirPath, filePath, hash, total) {returnnewPromise((resolve, reject) =>{ ...
EventTargetImpl>) at /Users/yj/projects/node-debug/node_modules/jsdom/lib/jsdom/browser/htmltodom.js:41:19 fn=0x0000121f07e634d1 frame #13: 0x000015b492f118d5 JSDOM(this=0x121f516ff249:<Object: JSDOM>, 0x121fddd02201:<String: "0.dj21ultvs6p0.d...">, 0x121f832826f1:<undef...
Buffer.from(arrayBuffer[, byteOffset[, length]]):This creates a view of the ArrayBuffer without copying the underlying memory Buffer.from(buffer):复制传入的 Buffer 实例的数据,并返回一个新的 Buffer 实例 Buffer.from(string[, encoding]):返回一个被 string 的值初始化的新的 Buffer 实例 ...
transferOut[boolean]- If true this will release ownership of the given resource from this isolate. This operation completes in constant time since it doesn't have to copy an arbitrarily large object. This only applies to ArrayBuffer and TypedArray instances. ...
Today, the node.jsBufferconstructor is overloaded to handle many different argument types likeString,Array,Object,TypedArrayView(Uint8Array, etc.),ArrayBuffer, and alsoNumber. The API is optimized for convenience: you can throw any type at it, and it will try to do what you want. ...